CA1239488A - Apparatus for checking persons for radioactive contamination - Google Patents
Apparatus for checking persons for radioactive contaminationInfo
- Publication number
- CA1239488A CA1239488A CA000501273A CA501273A CA1239488A CA 1239488 A CA1239488 A CA 1239488A CA 000501273 A CA000501273 A CA 000501273A CA 501273 A CA501273 A CA 501273A CA 1239488 A CA1239488 A CA 1239488A
- Authority
- CA
- Canada
- Prior art keywords
- detector
- detector panels
- panels
- rotation
- angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Measurement Of Radiation (AREA)
Abstract
ABSTRACT
APPARATUS FOR CHECKING PERSONS FOR RADIOACTIVE
CONTAMINATION
An apparatus for checking persons for radioactive contamination comprises at least two detector panels (1, 2), which are interconnected and extend at an angle to eachother and are provided each with detectors on at least one broadside. Said detector panels define a space for accommodating a person to be checked. The apex of the angle defines a vertical axis of rotation for the detector panels, which are interconnected to form a subassembly. Resetting drive means are disposed between the axis of rotation and the rigid subassembly L revolv-ing door is provided in a lock chamber for checking persons for radioactive contamination. A tread surface is provided by a floor plate carrying a foot detector, which is disposed between the vertical detector panels when they are in position of rest. :
APPARATUS FOR CHECKING PERSONS FOR RADIOACTIVE
CONTAMINATION
An apparatus for checking persons for radioactive contamination comprises at least two detector panels (1, 2), which are interconnected and extend at an angle to eachother and are provided each with detectors on at least one broadside. Said detector panels define a space for accommodating a person to be checked. The apex of the angle defines a vertical axis of rotation for the detector panels, which are interconnected to form a subassembly. Resetting drive means are disposed between the axis of rotation and the rigid subassembly L revolv-ing door is provided in a lock chamber for checking persons for radioactive contamination. A tread surface is provided by a floor plate carrying a foot detector, which is disposed between the vertical detector panels when they are in position of rest. :
Description
~23~ 8 Allure ~01~ COCKING PERSONS FUR R.;DI0ACTIVE
C0NTArlrlIN~T10N ~ACKGR0UND OF TO INVENTION
told of -the Invention Russ invention relates to apparatus for checking persons for radioactive contamination comprise in detector panda, which are optionally divided in height and extend a-t an angle to each other and define space, which is adapted to be occupied by a person to be nicked.
::
Description Ox the Prior Art In such contamination check chambers, the front and rear sides ox a person are sensed and it is difficult to ensure that the measurements are taken at equal distance, 'when the measurements are taken in two positions of the person, the distances will be small and -the sensitivity will be high It is known to provide contaminat1on~che~ok:
chambers having lateral entrance and exit doors, which no also provided with detectors. Such chambers may be provided on the ~loor~with detectors in areas on which he feet are to be placed The doors involve a high tructural;~expenditure and require a large space and the :
transit times are increased.
;: I::: : :: : :
his disadvantage will 'ye aggravated wren t~wo~;doors:~are controlled in such a manner that when owe door has:~bee~`opened the other door canno~:be opened ::
'unles~:a::co~tami~ation hasn't been detected : :
nown~apparatus~ for monitoring passenger ~Z3~
traffic comprise a check chamber provided with two doors which are so controlled that after one door has been opened the other door cannot be opened wheel a contamina-lion has been detected In -a known arrangement at least three station nary detector panels are arranged at an angle -to each other in a top plan view. In such top plan view, two I` panels extend on opposite sod s of a middle panel at an angle of an oiler OX about 135. Such a checking apparatus may be accommodated in a niche and may closely confine a person to be checked. But a disadvantage resides n that the measurements are taken at large distances Nat the corners formed between the outer detector panels, which extend at an angle -to each other and the middle detector panel. In said known arrangement the position of the person to be checked is not defined because there axe only Rand boxes for receiving the hands at the outer edges of the utter panels. 'ale measurements twill on tune front and Lear sides of a person will not be consistent.
ut~the invention is also applicable in another embody-mint to such an~angular~;~configuratlonO
It lo Known to design apparatus for ohe~ckln~
persons inconsideration of a so-called re~erence~figure,~
which is also known as an ICRP reference man Under certain conditions reference figure has in a top plan view an elliptical~r~ontour having a major axis of I cm and a sixth of 95 cm (ICRP).
is an object of -the inanition to provide p~ight~dsts~ctor pled outruns awoke p- ~1Ctector~
I
and extending Kit an angle to each other and so to arrange said detector puns that a large number of persons can wall through button the detector panels in a foster succession and to ensure that accurate results Jill be obtained by the checks whereas -the eYpendture isle ye reduced.
In on apparatus for checking persons against radioactive contamination, that object is accomplished in that at least -two detector panels, which are provided each tithe detectors on at least one broadside and extend a-t an angle to each other and include a space for accommodating a person two be checked, said detector panels extending a-t an angle to each other are rigidly interconnected to constitute a rigid subsumable, which is -mounted for rotation about a vertical axis owe rotation, and a resetting drive is connected to Audi rigid subassembly and comprises means for Stirling resetting energy as the rigid subassembly is rotated about said axis of rotation from an initial position in one sense and for expending said energy to reset the rigid subassembly to said initial position when said rigid subassembly has been released :
: Four certain purposes the angle included by the detector parleys is or may ye altered This Jay ye de-slrable when the detector panels are adapted to close and :
Jo :
I
open a corridor jet screws may be provided for holding the detector pa7lels at a predetermined angle to each other it Lucite for a certain time A temporary adaptation ma be of east by ratchet mechanism, which are operatively 'connected to the detector panels end limit the adjustment in a predetermined position and provide for a resetting.
Such an arran~?;el:nent will permit an adaptation to different reference figures this may alternatively be accomplished by a mechanical de-tent or locking device or such device provided with adjusting magnets and/or to an adjusting drive so that an adaptation to a person to 'ye checked cay be effected within predetermined limits These features may be utilized in a special embodiment of -the invention in winch -the detector panels extending a an angle to each other euphony an apex of the angle included yo-yo them and are interconnected at said apex by mounting means which permit said detector panels to be-moved in alternation, said mounting means are provided with adjusting means which are adapted to control the adjustment of two detector panels to a pro-determined ankle relative to each other, said mounting means are';orovided wit ratchet means, which are operatively connected to two adjacerlt detector panels and limit the ad-justment or the detector panels relative to each other to a certain degree and constitute resetting means for no-setting the detector panels relative to Mach other to the predetermined angular position In preferred embodiments a tread surface is disposed in the space included by the detector panels and is formed by a floor plate, which is provided with a foot detector structure having two detector units or respective eta Tlflat tread surface is disposed in -the space w`nich,~s included by the rotatable detector panels when they are in a position of rest.
he at least -two detector panels may De provided with mounting means which aye adjustable to change the angle which is included my adjacellt detector panels. Said mollnting means may be adjustable or adapt-lion to the contour of a reverence pharaoh The a-t least two detector panels provided with detectors may be provided with connecting means including a hinge In a particularly preferred embodiment the apparatus comprises a plurality of detector panel which extend at angles -to each other and each of' said detector panels is provided on both t)roRdsides with detectors, Said detector panels are interconrlected to form a rigid subclssembly consisting of a reviving door, which is mounted for rotation about a vertical axis that is defined by the common apex of said angles The detector panels constitute wins of the revolving door; means for locking and unlocking; said door are provided between the rigid subassembly and its axis ox rotation and means are provided for processing the output signals ox the detect ions and are connected by a functional link -to the locking all unlocking Mooney such an arrangement will permit a large inner ox successive persons to walk assurer through the revolving door than is possible with a known arrange-en. In such an embodiment the wings ox the revolving door particularly the detector panels which constitute such wings, are rigidly intercoDnectedO
A special advantage afforded by such an embodiment that an air lock chamber can be formed between . . , . .
I
I
hot and cold spaces The -term "rigid subassembly" used herein-before describe; the subsumable dying normal operation Rudy subassembly may be provided with a reticulate mechanlsr~ Russia is adapted -to be unlocked so the G the rigid interconnection can be elirnin,~-~ted in an erogenous and the revolving door can then be unfolded to open an emergency pus.
Another desirable embodiment constitutes a ;~alk-throu~;h check chamber, in which an axis of Russian is disposed. it least one wall defining the walk-throu~h lock Camaro is formed With a niche, in which an edge of a detector panel it pivotal movable '~hec~tector panels extend at I food airlock to each other an are mounted for rotation about toe axis old rotation to resetting mechclnism is provided between the axis owe rotation anal the inter-connected detector panels and includes spring means, which are arranged to store resetting energy when the detector panels are rotated to permit an exit of a person Lyon the detector panels have subsscluentl~ been released, the resetting mecharlism expends said resetting energy -to reset the detector panels to a position for receiving another person -to be checked.
In such an embodiment the interconnected detector panels extending a-t on angle -to each other are rotatable in unison. A ratchet mechanism is provided which permutes rotation ox -the detector panels about the axis of rotation in one sense and only aster a no-station in said sense trough a predetermined angle permits a rotation in the opposite sense. iris -the detector :
I r ~39 panels l-nay be rotated in unison, individual wings of the subassembly comprising the detector panels may be moved individually, particularly for opening a passage in an emergency. The wings which consist of the detector panels are adapted to be locked relative to each other in a pro-determined angular position and springs or similar no-setting means are provided for automatically resetting said wings to said predetermined relative position.
In a desirable embodiment comprising only two detector panels for a check of one person at a time said detector panels can be incorporated in a revolving door, which is mounted for rotation about a single axis of rotation, and ratchet mechanisms may be provided for angularly moving individual detector panels relative to each other as well as resetting means for resetting a sling of the revolving door to a predetermined initial annular position when said wing has been swung open to permit a checked person to leave.
A special embodiment constitutes a walk-through check chamber, which is defined by two detector panels, which are mounted for rotation about an axis of rotation. Each detector panel is provided with detectors on that broadside which is remote from the wall which defines the walk-through lock chamber. The axis of rotation extends beside said wall.
In such an embodiment each of the two detector panels may be individually mounted to form a hinged door and the two detector panels are connected to a common control device, which causes said detector panels to be swung open in alternation and locks each detector panel in a closed yo-yo I: :
:::
:
, ~3~488 position as the other detector panel is swung open.
Locking means are provided for locking and unlocking the two detector panels in alternation.
In the above-described embodiment comprising means for locking and releasing the revolving door, that locking and releasing means may be releasable and may consist of two parts, which are adapted to be inter-locked by interlocking means, which in one condition rigidly interconnect said two parts and in another condo-lion eliminate said rigid interconnection so that the detector panels can then be swung as desired to open an exit in an emergency. The provision Or the emergency exit is a particularly important feature, which its due to the fact that the locking means can be disabled so that the check chamber which in normal operation can be walked through only by one person at a time can be per-manently opened in an emergency.
From that aspect the revolving door need not consist of only two wings, although that design is desirable. The subassembly constituted by the revolving door may consist of more than two detector panels. That subassembly is rotatabIy mounted and includes detector panels which are interconnected to constitute the wins .
of a revolving door. A mechanism comprising connecting means and resetting means is provided between the sub-assembly and the mounting means for the subassembly. Said mechanism is adapted to be unlocked and consists of two parts, which are adapted to be connected by interlocking means, which in one condition rigidly interconnect said part sand in another condition eliminate said rigid interconnection so that the detector panels can be rotated I
as desired to open an exit in an emergency. The term "unlocked" means that a rigid interconnection can be eliminated.
In another embodiment of the invention, one of the arrangements comprising individually movable detector panels and a set of interconnected detector panels is provided as well as mounting means by which said detector panels are mounted for rotation about an axis of rotation. Coupling means are provided, which are constituted by one of the parts of the group consisting of a resetting drive, resetting mechanism control means, locking and unlocking means and connecting means, which coupling means are connected to at least one detector panel, on the one hand, and to one of the elements ox the above-mentioned group, which also includes an additional detector panel, mounting means for detector panels and means defining the axis of rotation, and which coupling means are disengage able and when disengaged permit the detector panels to be freely pivotal movable relative to each other so as to open an emergency exit.
In the desirable embodiment only two inter-connected vertical detector arrays are provided, which extend at an angle to each other. In such an embodiment the detector array is preferably divided in a central region of its width by a vertical blank strip, which is disposed in consideration of a reference figure said Yen-tidal blank strips are arranged near those portions of the ; reference figure or of a person standing on the floor plate which are closest to the detector array. The foot detector structure suitably comprises two detector units for .~, f '~,~Sb ~239~88 respective feet. The groups of detectors on either side of the vertical blank strip generate signals which can be processed to compensate the influence of the closest apt proximation of the detectors to the reference figure on the generation of said signals.
In that case fewer detectors will be suffix client and a simpler structure may be used than in known arrangements having a comparable measuring range. The small number of detector panels provided with surface-type detectors will reduce the gaps in the horizontal measuring configuration 50 that more accurate results will be obtained with a simpler configuration. Because the detectors are spaced apart, the zero effect is reduced too. Besides, the peak sensitivity of the detectors in the central region of the width of each detector panel will not be disproportionately higher than the sensitivity in the remaining regions, so that a uniform sensitivity profile will be obtained with only two detector panels.
It is apparent from the above that said arrangement is designed in consideration of the reference figure and the angles. In dependence on a reference figure the angle included by the detector panels and the exact locations of the vertical blank strips of the detector panels, particularly in the central region of the width of each panel, can be adapted in such a manner that the vertical blank strip between adjacent detectors lies as exactly as possible in the region in which the detector panel most closely approximates the person to be checked.
:
Whereas the reference figure is a datum, , ..
~;~3~8~
that datum can differ in different geographical regions so that an adaptation will be desirable.
The optimum embodiment is designed for a reference figure which in a top plan view has an elliptical contour having a major axis of 35 cm and a girth of 95 cm and said embodiment comprises two detector panels having sensing surfaces which include an angle of an order of 104.
Within the scope ox the invention, underarm detectors may be combined with two detector arrays which extend at an angle to each other and are included in a rotatable subassembly. The provision of underarm detectors is preferable Jo known hand boxes be-cause the underarms and hands can be constrained to ox-tend in said underarm boxes in predetermined directions so that the movements of the arm joints are restricted and the desired positioning ox persons to be checked will be improved.
This will be the case even when the person to be checked turns around so that his or her underarms are no Monger in the checking boxes. Before the person has turned around, his or her position has been determined by the special arrangement and directions of the underarm boxes so that even when such person has turned around on the toot detector structure he or she wily assume a position which is smaller to the position :~:
assumed before turning around.
: :
In a preferred arrangement, the long-tudinal axis ox each detector in the underarm boxes is .
, , . . .
~39~
upwardly inclined from -the entry nice opening to the opposite end of' the underarm box Such an arrangement will facilitate the insertion of the underarms into the Boyce If two detectors are provided in each underarm box, the transverse axes of said detectors are suit-ably horizontal. The underarm boxes have suitably a length of about 50 cm.
'the invention provides a check chamber which permits a check with results that are better than those obtained with known apparatus. the check chamber can be designed for a higher checking efficiency in that the rate at vouch persons can past -through the check chamber can be rmlch increased. Just as the other embody-men, such an embodiment wow comprises means for con-trolling the movements Or the vertical detector arrays in aeration and means for driving and locking said arrays, permits said means to be unlocked so that an emergency exit can be opened. Even if the apparatus constitutes a check chamber, it may constitute a sell-contained subassembly which may be used in various ways .
If two detector panels are provided, the angle included by said panels lies suitably in a range between 90 and 118 degrees :: :
I`
~.~39 Brief Dusk lion of the Drawing Figure 1 is a top plan view shoving an apparatus which comprises detector panels on which the detectors are separated by a vertical blank strip arranged in consider-lion of a reference figure.
Figure 2 it an elevation which is similar to Figure 1 and shows an embodiment which is additionally provided with underarm boxes.
Figure 3 is a sectional view talc en on line I~I-III
of Figure 2.
Figure 4 is an elevation showing a detector panel as illustrated in figure 1 or 2 and viewed in the direction of the arrow IVY in figure 1 and illustrates also the arrangement ox the underarm boxes.
inure 5 is a side elevation showing the apparatus ox Figure 2 and illustrates the orientation of the underarm --I boxes.
Figure 6 is a top plan view showing a check chamber in accordance with the basic concept of the invention.
Foggily 7 is a top plan view which is similar to figure 6 and shows a modification.
.
inure 8 is a top plan view showing a further embodiment of a check chamber in accordance with the invention.
: ::
I
Lo inure 9 is a top Pun view showing a check chamber in a modification of Figure 8.
Figure 10 is a front elevation showing typo interconnected detector panels, which extend at an angle to each other and are provided with ~derarm boxes.
Figure 11 is a front elevation showing an apparatus comprising two detector panels, mounting means - for the detector panels, and drive means.
Figure 12 is a sectional view taken on line XII-XII in figure 11.
inure 13 it a fragmentary view one the lower portion of an apparatus comprising two detector panels and a resetting drive.
igloo 14 is a fragmentary top plan view showing an apparatus comprising separate drive means for each detector panel.
?
inure 15 is a block diagram.
Detailed Desert lion of the Preferred Embodiments he invention will now be explained with reference to illustrative embodiments Shea on the diagrammatic drawing In all figures ox the drawing live parts are designated with the same reference characters.
: :
' In the embodiments shown in top play views in Figures 1 end 2, two detector panels 1, 2 are mounted on a floor surface or floor plate 3. The two detector panels 1,
C0NTArlrlIN~T10N ~ACKGR0UND OF TO INVENTION
told of -the Invention Russ invention relates to apparatus for checking persons for radioactive contamination comprise in detector panda, which are optionally divided in height and extend a-t an angle to each other and define space, which is adapted to be occupied by a person to be nicked.
::
Description Ox the Prior Art In such contamination check chambers, the front and rear sides ox a person are sensed and it is difficult to ensure that the measurements are taken at equal distance, 'when the measurements are taken in two positions of the person, the distances will be small and -the sensitivity will be high It is known to provide contaminat1on~che~ok:
chambers having lateral entrance and exit doors, which no also provided with detectors. Such chambers may be provided on the ~loor~with detectors in areas on which he feet are to be placed The doors involve a high tructural;~expenditure and require a large space and the :
transit times are increased.
;: I::: : :: : :
his disadvantage will 'ye aggravated wren t~wo~;doors:~are controlled in such a manner that when owe door has:~bee~`opened the other door canno~:be opened ::
'unles~:a::co~tami~ation hasn't been detected : :
nown~apparatus~ for monitoring passenger ~Z3~
traffic comprise a check chamber provided with two doors which are so controlled that after one door has been opened the other door cannot be opened wheel a contamina-lion has been detected In -a known arrangement at least three station nary detector panels are arranged at an angle -to each other in a top plan view. In such top plan view, two I` panels extend on opposite sod s of a middle panel at an angle of an oiler OX about 135. Such a checking apparatus may be accommodated in a niche and may closely confine a person to be checked. But a disadvantage resides n that the measurements are taken at large distances Nat the corners formed between the outer detector panels, which extend at an angle -to each other and the middle detector panel. In said known arrangement the position of the person to be checked is not defined because there axe only Rand boxes for receiving the hands at the outer edges of the utter panels. 'ale measurements twill on tune front and Lear sides of a person will not be consistent.
ut~the invention is also applicable in another embody-mint to such an~angular~;~configuratlonO
It lo Known to design apparatus for ohe~ckln~
persons inconsideration of a so-called re~erence~figure,~
which is also known as an ICRP reference man Under certain conditions reference figure has in a top plan view an elliptical~r~ontour having a major axis of I cm and a sixth of 95 cm (ICRP).
is an object of -the inanition to provide p~ight~dsts~ctor pled outruns awoke p- ~1Ctector~
I
and extending Kit an angle to each other and so to arrange said detector puns that a large number of persons can wall through button the detector panels in a foster succession and to ensure that accurate results Jill be obtained by the checks whereas -the eYpendture isle ye reduced.
In on apparatus for checking persons against radioactive contamination, that object is accomplished in that at least -two detector panels, which are provided each tithe detectors on at least one broadside and extend a-t an angle to each other and include a space for accommodating a person two be checked, said detector panels extending a-t an angle to each other are rigidly interconnected to constitute a rigid subsumable, which is -mounted for rotation about a vertical axis owe rotation, and a resetting drive is connected to Audi rigid subassembly and comprises means for Stirling resetting energy as the rigid subassembly is rotated about said axis of rotation from an initial position in one sense and for expending said energy to reset the rigid subassembly to said initial position when said rigid subassembly has been released :
: Four certain purposes the angle included by the detector parleys is or may ye altered This Jay ye de-slrable when the detector panels are adapted to close and :
Jo :
I
open a corridor jet screws may be provided for holding the detector pa7lels at a predetermined angle to each other it Lucite for a certain time A temporary adaptation ma be of east by ratchet mechanism, which are operatively 'connected to the detector panels end limit the adjustment in a predetermined position and provide for a resetting.
Such an arran~?;el:nent will permit an adaptation to different reference figures this may alternatively be accomplished by a mechanical de-tent or locking device or such device provided with adjusting magnets and/or to an adjusting drive so that an adaptation to a person to 'ye checked cay be effected within predetermined limits These features may be utilized in a special embodiment of -the invention in winch -the detector panels extending a an angle to each other euphony an apex of the angle included yo-yo them and are interconnected at said apex by mounting means which permit said detector panels to be-moved in alternation, said mounting means are provided with adjusting means which are adapted to control the adjustment of two detector panels to a pro-determined ankle relative to each other, said mounting means are';orovided wit ratchet means, which are operatively connected to two adjacerlt detector panels and limit the ad-justment or the detector panels relative to each other to a certain degree and constitute resetting means for no-setting the detector panels relative to Mach other to the predetermined angular position In preferred embodiments a tread surface is disposed in the space included by the detector panels and is formed by a floor plate, which is provided with a foot detector structure having two detector units or respective eta Tlflat tread surface is disposed in -the space w`nich,~s included by the rotatable detector panels when they are in a position of rest.
he at least -two detector panels may De provided with mounting means which aye adjustable to change the angle which is included my adjacellt detector panels. Said mollnting means may be adjustable or adapt-lion to the contour of a reverence pharaoh The a-t least two detector panels provided with detectors may be provided with connecting means including a hinge In a particularly preferred embodiment the apparatus comprises a plurality of detector panel which extend at angles -to each other and each of' said detector panels is provided on both t)roRdsides with detectors, Said detector panels are interconrlected to form a rigid subclssembly consisting of a reviving door, which is mounted for rotation about a vertical axis that is defined by the common apex of said angles The detector panels constitute wins of the revolving door; means for locking and unlocking; said door are provided between the rigid subassembly and its axis ox rotation and means are provided for processing the output signals ox the detect ions and are connected by a functional link -to the locking all unlocking Mooney such an arrangement will permit a large inner ox successive persons to walk assurer through the revolving door than is possible with a known arrange-en. In such an embodiment the wings ox the revolving door particularly the detector panels which constitute such wings, are rigidly intercoDnectedO
A special advantage afforded by such an embodiment that an air lock chamber can be formed between . . , . .
I
I
hot and cold spaces The -term "rigid subassembly" used herein-before describe; the subsumable dying normal operation Rudy subassembly may be provided with a reticulate mechanlsr~ Russia is adapted -to be unlocked so the G the rigid interconnection can be elirnin,~-~ted in an erogenous and the revolving door can then be unfolded to open an emergency pus.
Another desirable embodiment constitutes a ;~alk-throu~;h check chamber, in which an axis of Russian is disposed. it least one wall defining the walk-throu~h lock Camaro is formed With a niche, in which an edge of a detector panel it pivotal movable '~hec~tector panels extend at I food airlock to each other an are mounted for rotation about toe axis old rotation to resetting mechclnism is provided between the axis owe rotation anal the inter-connected detector panels and includes spring means, which are arranged to store resetting energy when the detector panels are rotated to permit an exit of a person Lyon the detector panels have subsscluentl~ been released, the resetting mecharlism expends said resetting energy -to reset the detector panels to a position for receiving another person -to be checked.
In such an embodiment the interconnected detector panels extending a-t on angle -to each other are rotatable in unison. A ratchet mechanism is provided which permutes rotation ox -the detector panels about the axis of rotation in one sense and only aster a no-station in said sense trough a predetermined angle permits a rotation in the opposite sense. iris -the detector :
I r ~39 panels l-nay be rotated in unison, individual wings of the subassembly comprising the detector panels may be moved individually, particularly for opening a passage in an emergency. The wings which consist of the detector panels are adapted to be locked relative to each other in a pro-determined angular position and springs or similar no-setting means are provided for automatically resetting said wings to said predetermined relative position.
In a desirable embodiment comprising only two detector panels for a check of one person at a time said detector panels can be incorporated in a revolving door, which is mounted for rotation about a single axis of rotation, and ratchet mechanisms may be provided for angularly moving individual detector panels relative to each other as well as resetting means for resetting a sling of the revolving door to a predetermined initial annular position when said wing has been swung open to permit a checked person to leave.
A special embodiment constitutes a walk-through check chamber, which is defined by two detector panels, which are mounted for rotation about an axis of rotation. Each detector panel is provided with detectors on that broadside which is remote from the wall which defines the walk-through lock chamber. The axis of rotation extends beside said wall.
In such an embodiment each of the two detector panels may be individually mounted to form a hinged door and the two detector panels are connected to a common control device, which causes said detector panels to be swung open in alternation and locks each detector panel in a closed yo-yo I: :
:::
:
, ~3~488 position as the other detector panel is swung open.
Locking means are provided for locking and unlocking the two detector panels in alternation.
In the above-described embodiment comprising means for locking and releasing the revolving door, that locking and releasing means may be releasable and may consist of two parts, which are adapted to be inter-locked by interlocking means, which in one condition rigidly interconnect said two parts and in another condo-lion eliminate said rigid interconnection so that the detector panels can then be swung as desired to open an exit in an emergency. The provision Or the emergency exit is a particularly important feature, which its due to the fact that the locking means can be disabled so that the check chamber which in normal operation can be walked through only by one person at a time can be per-manently opened in an emergency.
From that aspect the revolving door need not consist of only two wings, although that design is desirable. The subassembly constituted by the revolving door may consist of more than two detector panels. That subassembly is rotatabIy mounted and includes detector panels which are interconnected to constitute the wins .
of a revolving door. A mechanism comprising connecting means and resetting means is provided between the sub-assembly and the mounting means for the subassembly. Said mechanism is adapted to be unlocked and consists of two parts, which are adapted to be connected by interlocking means, which in one condition rigidly interconnect said part sand in another condition eliminate said rigid interconnection so that the detector panels can be rotated I
as desired to open an exit in an emergency. The term "unlocked" means that a rigid interconnection can be eliminated.
In another embodiment of the invention, one of the arrangements comprising individually movable detector panels and a set of interconnected detector panels is provided as well as mounting means by which said detector panels are mounted for rotation about an axis of rotation. Coupling means are provided, which are constituted by one of the parts of the group consisting of a resetting drive, resetting mechanism control means, locking and unlocking means and connecting means, which coupling means are connected to at least one detector panel, on the one hand, and to one of the elements ox the above-mentioned group, which also includes an additional detector panel, mounting means for detector panels and means defining the axis of rotation, and which coupling means are disengage able and when disengaged permit the detector panels to be freely pivotal movable relative to each other so as to open an emergency exit.
In the desirable embodiment only two inter-connected vertical detector arrays are provided, which extend at an angle to each other. In such an embodiment the detector array is preferably divided in a central region of its width by a vertical blank strip, which is disposed in consideration of a reference figure said Yen-tidal blank strips are arranged near those portions of the ; reference figure or of a person standing on the floor plate which are closest to the detector array. The foot detector structure suitably comprises two detector units for .~, f '~,~Sb ~239~88 respective feet. The groups of detectors on either side of the vertical blank strip generate signals which can be processed to compensate the influence of the closest apt proximation of the detectors to the reference figure on the generation of said signals.
In that case fewer detectors will be suffix client and a simpler structure may be used than in known arrangements having a comparable measuring range. The small number of detector panels provided with surface-type detectors will reduce the gaps in the horizontal measuring configuration 50 that more accurate results will be obtained with a simpler configuration. Because the detectors are spaced apart, the zero effect is reduced too. Besides, the peak sensitivity of the detectors in the central region of the width of each detector panel will not be disproportionately higher than the sensitivity in the remaining regions, so that a uniform sensitivity profile will be obtained with only two detector panels.
It is apparent from the above that said arrangement is designed in consideration of the reference figure and the angles. In dependence on a reference figure the angle included by the detector panels and the exact locations of the vertical blank strips of the detector panels, particularly in the central region of the width of each panel, can be adapted in such a manner that the vertical blank strip between adjacent detectors lies as exactly as possible in the region in which the detector panel most closely approximates the person to be checked.
:
Whereas the reference figure is a datum, , ..
~;~3~8~
that datum can differ in different geographical regions so that an adaptation will be desirable.
The optimum embodiment is designed for a reference figure which in a top plan view has an elliptical contour having a major axis of 35 cm and a girth of 95 cm and said embodiment comprises two detector panels having sensing surfaces which include an angle of an order of 104.
Within the scope ox the invention, underarm detectors may be combined with two detector arrays which extend at an angle to each other and are included in a rotatable subassembly. The provision of underarm detectors is preferable Jo known hand boxes be-cause the underarms and hands can be constrained to ox-tend in said underarm boxes in predetermined directions so that the movements of the arm joints are restricted and the desired positioning ox persons to be checked will be improved.
This will be the case even when the person to be checked turns around so that his or her underarms are no Monger in the checking boxes. Before the person has turned around, his or her position has been determined by the special arrangement and directions of the underarm boxes so that even when such person has turned around on the toot detector structure he or she wily assume a position which is smaller to the position :~:
assumed before turning around.
: :
In a preferred arrangement, the long-tudinal axis ox each detector in the underarm boxes is .
, , . . .
~39~
upwardly inclined from -the entry nice opening to the opposite end of' the underarm box Such an arrangement will facilitate the insertion of the underarms into the Boyce If two detectors are provided in each underarm box, the transverse axes of said detectors are suit-ably horizontal. The underarm boxes have suitably a length of about 50 cm.
'the invention provides a check chamber which permits a check with results that are better than those obtained with known apparatus. the check chamber can be designed for a higher checking efficiency in that the rate at vouch persons can past -through the check chamber can be rmlch increased. Just as the other embody-men, such an embodiment wow comprises means for con-trolling the movements Or the vertical detector arrays in aeration and means for driving and locking said arrays, permits said means to be unlocked so that an emergency exit can be opened. Even if the apparatus constitutes a check chamber, it may constitute a sell-contained subassembly which may be used in various ways .
If two detector panels are provided, the angle included by said panels lies suitably in a range between 90 and 118 degrees :: :
I`
~.~39 Brief Dusk lion of the Drawing Figure 1 is a top plan view shoving an apparatus which comprises detector panels on which the detectors are separated by a vertical blank strip arranged in consider-lion of a reference figure.
Figure 2 it an elevation which is similar to Figure 1 and shows an embodiment which is additionally provided with underarm boxes.
Figure 3 is a sectional view talc en on line I~I-III
of Figure 2.
Figure 4 is an elevation showing a detector panel as illustrated in figure 1 or 2 and viewed in the direction of the arrow IVY in figure 1 and illustrates also the arrangement ox the underarm boxes.
inure 5 is a side elevation showing the apparatus ox Figure 2 and illustrates the orientation of the underarm --I boxes.
Figure 6 is a top plan view showing a check chamber in accordance with the basic concept of the invention.
Foggily 7 is a top plan view which is similar to figure 6 and shows a modification.
.
inure 8 is a top plan view showing a further embodiment of a check chamber in accordance with the invention.
: ::
I
Lo inure 9 is a top Pun view showing a check chamber in a modification of Figure 8.
Figure 10 is a front elevation showing typo interconnected detector panels, which extend at an angle to each other and are provided with ~derarm boxes.
Figure 11 is a front elevation showing an apparatus comprising two detector panels, mounting means - for the detector panels, and drive means.
Figure 12 is a sectional view taken on line XII-XII in figure 11.
inure 13 it a fragmentary view one the lower portion of an apparatus comprising two detector panels and a resetting drive.
igloo 14 is a fragmentary top plan view showing an apparatus comprising separate drive means for each detector panel.
?
inure 15 is a block diagram.
Detailed Desert lion of the Preferred Embodiments he invention will now be explained with reference to illustrative embodiments Shea on the diagrammatic drawing In all figures ox the drawing live parts are designated with the same reference characters.
: :
' In the embodiments shown in top play views in Figures 1 end 2, two detector panels 1, 2 are mounted on a floor surface or floor plate 3. The two detector panels 1,
2 are interconnected at 4 and extend at an angle 5 Jo each other, the value of which it of high significance in collection with the design of the detector panels. In thy preferred embodiment, that angle amounts to 104 but the angle may be varied throughout the range defined herein before. That angle is selected in consideration of a reference figure 6, which has an elliptical contour in a top plan view. It is apparent that the ellipse has peripheral portions 7, I, which are closest to the detector panels 1, 2. Adjacent to the portions 7, 8 of` the ellipse, the detector panels us 2 have vertical blank strips 9, lo so that the sensitivity of the detector panels is reduced in that region and the result which is obtained by the measurement will agree with the actual conditions as closely as possible, i.e., it will be uniform and will have no superfluous minima. The blank strip is desirably disposed in the central region of the width of each detector panel. This arrangement will also determine the extent of said blank strip relative to the reference figure because or the blank strip is disposed close to that portion of the reference figure which it closest to the detector panel.
The two detector panels 1, 2 are interconnected at 4 by conventional means. or instance each panel comprises a carrying plate 77~ or 78, which carries the detectors, which constitute radiation-sensitive surfaces or detector fields 13 to 16 figure 2). The carrying plates 77, I may be integrally collected or may be welded to each other at 4 or may be interconnected by a hinge, which comprises intermitting sleeves and a rod I
"I.
~Z3948B
-- l S --extending through the sleeves. the blank strip 9 or 10 ensures that adjacent detector fields are spaced apart.
he design adopted in consideration of the reference figure is so selected that the flat radiation-sensitive surfaces or detector fields 13, 14 or 15, 16 provided on -the inside surfaces of the detector panels 1, 2 face each other on opposite sides of the angle 5.
Jo In such an apparatus, a person stands with his or her feet on a foot detector structure, which may be divided into two detector units 11, 12. The foot detector structure constitutes a tread surface and its two detector units 11, 12 define the positions ox respective fee-t.
Each of the two detector panels 1, 2 is provided in its upper portion with an underarm box 17 or 1&. The underarm boxes 17, 18 are parallel to etch other and are Jo so disposed relative to the blank strips 9, 10 that each underarm box 17 or 18 is close to that edge of the radian tion-sensitive surface 13 or 14 of the inner detector 19 or 20 which adjoins the vertical blank strip 9 or 10.
; ., It is apparent from Figure 3 that each underarm : box 17 or 18 is provided at its top and bottom with respective elongate, surface-t~pe detectors 21~ I
which have a length corresponding to the total length one underarm and of an extended hand. Said surface-type detectors converge toward those ends thereof which are remote from the associated pa of 1 or 2. Adjacent to said remote ends of the surface type detectors, the underarm boxes are provided with sensing means, such :: :
;
`
~2394~8 _ 7 _ as proximity detectors 23 or photoelectric detectors 24, for a check whether the underarms have been introduced to a adequate depth he proximity detectors 23 are mounted in a frill 79, which is secured to the remote ends of the surface-type detectors 21, 22. The elements which constitute a photodetector 24 may also be mounted on that frame.
The structure ox a detector panel 2 is apparent from the internal view shown in figure I. The vertical blink strip 10 extends from top to bottom between the detector fields 25 to 28 and the detector fields 29 to 31. The detector panel has also horizontal blank strip, which separate the detectors or detector fields 25 to 31 from each other. said rectangular surface-type detectors preferably have a vertical major axis. It is apparent from figure 4 that adjacent to the vertical joint 4 connecting the detector panel 2 to the other detector panel the detector panel 2 is provided with a vertical row of four vertically spaced apart detectors 25 to 28.
On that side o-F the vertical bulk strip 10 which is opposite to the joint 4 the detector panel 2 is provided with detector fields 2g, 30 and 21, which are disposed adjacent to and parallel to the detector fields 25, 27 ant 28, respectively. As a result a blank area 32 beside the detector or detector field 26 is provided on the outside of the blank strip 10. An underarm box 18 is arranged in that blank area 32. In this region the bray of the reference figure is not fully covered by the detectors. Ovi~ing Jo the provision of the underarm boxes, which extend at a distance from the center line 33, the introduction off the underarms into said boxes will result in such a constraint that optimum results Inlay be obtained by the measurement.
The underarm boxes are connected to the carrying plates 77, I of the detector panels by means of a frame 80, which sur-o~lds the surface-type detectors 21, 22. the arrangement of the detectors on the detector panel de-termites a certain elevation of the underarm boxes above the tread surface of the foot detector structure. what elevation ma be selected as desired and will vainly be selected in consideration of an assumed height of the reference figure.
inure 5 is an external elevation showing the checking apparatus of figure 1, particularly the detector panel 2. Optimum results will be obtained by the measurement if the underarm boxes 17, I include an angle of an order of 30 with the horizontal, although that angle may also be of a different order of magnitude. But it has been found that the provision of underarm boxes 17, I with such spacing from each other and with such upward inclination toward the hand end of the boxes wily ensure that persons of ordinary height will assume an optimum position.
Thai optimum design will facilitate the in production of the underarms so that changes from the desired position owing to a movement of the wrist joints will be prevented; such deviations may occur in known apparatus. In conjunction with the provision of only two detector panels each of which has a vertical blank strip in the middle of its width, the described arrangement of the ~lderarm boxes will facilitate the introduction of the underarms into the underarm boxes, and will cause the person to virtually spontaneously assume the desired position on the foot detector units 11, 12.
I,.
..~`
_ 19 - I 3 I
Rewarding -the arrangement and orientation of the underarm boxes 17, 18, these are only diagrammatically shown in Figure 4 and in practice will be inclined and diverse from the detector panels. the underarm boxes are preferably secured to the detector panels 1, 2 to form a rigid unit therewith.
The drawing shows an advantageous embodiment of the underarm boxes, each of which may be provided with more they'll two surface-type detectors.
The term "rigid unit" also includes a Kit comprising a pedestal, which carries the floor plate I.
In such "rigid unit" the two detector panels t, 2 may extend at an angle to each other at least in condition for the measvre~ent or at the time of` measurement. The -two detector panels may be pivo~ally movable in unison or Jay be interconnected by a hinge.
As described herein before, such hinge may comprise alternate intermitting sleeves mounted on the kern plates 77, 78 and a rod extending through the intermitting and aligned sleeves. Detent means may be provide for holding the detector panels in a selected position relative to each other.
Embodiments comprising hinge rods 35, 36 are shown in iris 6, 7 and 9.
:
ticketer panels 1, 2 which are hingedly in terconnected are provided with hinge rods 35, 36, on Russia the detector panels are molted and may be rightable mounted by means of hinge sleeves Mach detector panel 1 or 2 may be connected to the hinge rods 35, 36 by bearings ~235~
ardor by reshoot mechanisms 37, I permitting a movement only in one sense ~ndj if desired, by a resetting mushiness, which may be similar to an automatic door closer. In a preferred embodiment the ratchet mechanisms comprise a resetting drive, which is adapted to store resetting energy. Attention in this regard is also directed to Figures 11 and 12.
Such ratchet mechanisms 37, 38 are vertically spaced apart along the height or axial length of the hinge rods 357 36. the axis of the hinge rods 35, 36 obviously coincides with the apex of the angle at the joint 4.
he ratchet mechanisms may consist of commercially available mechanisms provided with resetting piston-cylinder units.
In the embodiment shown in Figures 6 aid 7, the assembly including the two detector panels 1, 2 is disposed between walls 39, 40 and 41 of a corridor or a check chamber of an assembly which has border walls 62, 63 on a basalt. The wall 39 is straight and continuous and the wall 40 has an arcuate portion 41, which permits a pivotal movement of the detector panel 2, which con-statutes a wing of a revolving door In Figure 6 the shutter consisting of a revolving door is shown with the two detector panels 1, 2 if an initial position relative to the center line of the foot detector units 11~ 12, which are parallel to the center line of the check chamber. In that embodiment the detector panels 1, 2 are pivotal movable in tune ::: :
Jo :
., I
.
~-~39~
direction of the arrow 42 to such a position that a person who has been shucked and has stepped back prom the two detector unitC3 11, 12 can proceed along the wall 39.
Figure 7 illustrates a modification, in which the assembly comprising the detector panels 1, 2 is initially in a position in which said assembly is a-symmetrical relative to the corridor extending in the direction of the arrow 43 so that the two detector units 12~ Ion receiving the feet extend at an oblique angle to -the walking direction indicated by the arrow 43. In embodiment in which the detector panels are initially asymmetrical with respect to the corridor the detector pled 59 may be pivotal moved to the position So', i.e., as far as to the wall 39, so that the corridor will be closed also in that position and the person can more easily leave the check chamber after the check.
.
In that embodiment, the wall 39 is provided with arcuate niches 60, 6-l, which permit a pivotal movement of the underarm boxes 17, 18 and may be provided with optional sealing means, not shown.
figure 8 shows a walk-through chamber defined by parallel walls 44, 45. A vertical hinge rod 46 is mounted on the wall 45 and is incorporated in a hinge for connecting two detector panels 1, 2, which are provided with vertical blank strips 9, 10, respectively.
he vertical hinge rod 46 is provided with a housing for a con-trolling ratchet mechanism 47. what ratchet mechanism effects a mutual check or adjustment to ensure that the two detector panels 1, 2 con be plvotally :
. .
moved only in alternation rather -than simultaneously in the directions of -the arrows 48, 49, respectively, to post-Schloss 50~ 51 in which they open a passage. That intrude-pendulous may be ensured by a computer or by an opposing ratchet mechanism having a driving or releasing element which is controlled by means for interpreting the results of the measurement.
Two alternatives may be selected for the embody-mint shown. In the illustrated embodiment, the two underarm boxes 17, 18 are secured to the vowel 45~ e.g., by means of brackets, which are mounted at the ends of the underarm boxes and are connected to the wall 45 by meals of plug.
'the underarm boxes 17~ 18 may reloan in their position owing to the blank area 32 shown in figures 4 and 5.
Nevertheless, a passage will be opened at least over one nail of the spacing of the walls 44, 45 when a check has been copulated or the next person is to be admitted.
That concept can particularly be adopted if vertical partitions 53, 54 are prude at the outer edges of the two detector panels 1, 2 and are movable to the positions 53~ and 54' indicated by dotted lines.
'the partitions 53, 54 are secured -to the carrying plates, e.g., by welding and preferably consist of plain walls although the partitions may also be provided vlith detector fields I: :
Figure 9 shows an arrangement in which vertical walls 55, 56 are rigidly connected to the wall 44 and the outer vertical edges of the two vertical detector panels 1, 2 are pivotal movable past those side edges of the walls 55,~56 which are dispose near the center of the :
I t corridor. In that embodiment the underarm boxes 17, 18 are secured to the detector panels 1, 2 and tune wall 45 is formed with preferably curved niches 57t 58 for receiving the two underarm boxes 17, 18 in alternation as one or the other of the two detector panels 1, 2 is pivotal moved about the rod 36 to the position designated 1' or 2', respectively.
In the embodiments shown in Figures 6 to 9, the ratchet mechanisms 37, 38 or the ratchet mechanism housing may be provided with means for effecting a release in an emergency Such means may unlock the two detector panels 1 and 2 from the means holding said detector panels at a predetermined angle to each other so that -the unlocked detector panels can be pivotal moved relative to each other to a position in which an emergency passage is opened between the walls of the check chamber. 'this may be accomplished with the aid OX externally disposed control means, not shown, or by means of an emergency release lever 64 provided inside the check chamber, particularly between the detector panels 1, 2 when they are in their initial position (figure I).
in the embodiments of the check chambers defined by the walls 39, 40 or 44, 45 and the walls 55, 56 attached thereto, the lateral builder walls 62, 63 may be provided so that it is apparent that said embodiments preferably consist of self-contailled assemblies which define a corridor. Such assemblies may be commercially available and can quickly be installed at a desired location. Such assemblies comprise -the illustrated side walls, a floor and a ceiling as well as the detector panels 1 and 2 extendil1g between -the floor and the ceiling.
Figure 10 is a front elevation showing two flat detector panels, Lucia extend at an angle to each other and are pro Ed with detector fields defined by dotted lilies.
The underarm boxes 17, 18 extend on the outside ox the detector panels Audi are mounted at the outer edges I 66 thereof, ego on the carrying plates 77, I figures 1 and owe The underarm boxes 17, 18 are connected to the carrying plates 77, 78 by adjusting means 71, 72, which are fixed to the carrying plates 77, I by fasteners 75, 76.
Said fasteners may consist of screws so that the elevation of the underarm boxes 17, 18 can be altered if each carrying plate 77 or 78 has a plurality of vertically spaced apart holes or receiving such screw. The ad jutting means 71, 72 permit also an ad,justmerlt ox the inclination of the underarln boxes 17r'18~ or this purpose, the adjusting means 71, 72 are provided with handles 73, I In accordance Vito Figure 10 the underarm 'boxes 17, 18 are downwardly and inwardly inclined toward their inner ends 67, 68 so that the center Hines 69, 70 of the underarm boxes 17, 18 intersect in a plane which bisects the angle 5 having tile apex I
Only for the sake ox clearness, the above-mentioned bearing means and ratchet mechanisms will now be explained also in conjunction with control eons .
: ' Figure 11 shows how the two detector panels 1, 2 are pivoted on a hinge rod 35, Welch extends through the :: :
alternate intermitting sleeves 81 to 83 ox the detector panel 2 and 84, of the detector panel 1 and into a pedestal 85 mounted on the flour plate I A driving gearmotor~87 is mounted under the floor plate 3 and it coupled by coupling mean-s 88 to the hinge rod 35 ::
.
- 25 - ~2~48~
Tulle motor 87 is coquetted to a pyre source by a Septic 136, weakly is so disowned in known manner Tut it cay be actuated to determlv,e or tie motor 87 a desired sense of rotation or to reverse the rotation and to make and Rex the circuit, The motor 87 is adapted to rotate the hinge rod and to rotate the detector panels 1, 2 to a selected annular position relative to each other, in which the detector panels are locked by a detent mechanism such as is shown in Figure 12.
. .
Bearing rings 89 to 93 may be interposed between the sleeves 81 to 850 Figure 12 is a ~ra(Jmentary sectio~cll view take ox line XII-XII in FicJure 11. The hinge rod 35 and the sleeve 81 are apparent. The sleeve 81 is secured to tile detector panel I A housing go is mounted on Tao sleeve 31 and contains a Dwight pin go, which is biased by a spring 95 and extelA1ds through an opening 97 ox the sleeve 81 and into a recess go formed in the hinge rod 85~ That detent pin 96 car be retracted by hand so that it can be inserted into another detent recess 99 or 10C when the angular position ox the detector panels relative to each other is to be altered. The detent recess may be so shallow that the detector panel 2 can be held in position relative to the hinge rod 35 but can be rotated about said rod 35 by a force which exceeds a threshold value that is de-ter,mined by the detent mechanism and the spring 95. The detent pin 96 is only diagrammatically indicated in Figure 11~ to least one detent pin 101 is mounted on a sleeve 84 connected to the detector panel 1.
it .
- of, - ~23~88 Because he detest mechanism can he disergasc-d~
it constitutes a ratchet mechanism and the cluck chamber can be opened for an emergency.
Figure 13 is a fragmentary view Sloan loller portions of the detector panels 1, 2, which in that embodiment ore secured, ego, to a common sleeve 102, which is rotatable mounted on the hinge rod 35~ The sleeve 102 is provided at its lower end Will a carrying ! flange 103, which is supported on a ring bearing 104, icky is mounted on an upstanding cylindrical ring 105, which is mounted on the pedestal 86. A spiral spring 107 is disposed bottle an axial lug 105 depending from tile sleeve 102 or prom the currying Plenary 103, on the owe hand, and the hinge rod 35, which is mixed in the pod-vestal 86, on the other hand. That spiral spring 107 is strained as the detector panel assembly is rotated in one sense and is relaxed as it resets that assembly to its initial position. The end positions of said assembly : are defined by stops 114, 115, which are disposed, eon., between the carrying flange 103 and the cylindrical I ring 105, and by at least one locking device, which consists, erg,, of an electromagnet provided with an armature 117, which is movable in response to an excitation of the electromagnet. ennui the detector panels are in one or the other of their end positions, said armature 117 cay be moved into a recess 118 formed it the carrying; flange and the armature 117 can be moved out of the recess when the assembly is to be unlocked for a rotation Jo Tile electromagnet is in convolutional manner a separately excitable electromagnet comprising a coil and a diagrammatically indicated supply lead 137, which its : ~co~mected by an excitation control switch 138 to a battery.
- 27 - ~23948B
The switch 138 may be a o-pole switch, The arrangement described just before constitutes a single embodiment of a resetting drive provided with spring means and locking means.
Separate drive means for moving the detector panels 1, 2 are show by way of example in Figure 14.
Each detector panel is individually movable about a hinge rod I on which the detector panel is mounted, ego, by mean of sleeves as shown if Figure 11~ and is zinged, e.g., at its lower end to a drive 108 or 10~, which is supported by hinges 110 or 111 to a bracket 112 or 113 molted on the base plate I Said drive means may consist ox electromagnets havincJ an. extensible or no-tractable armature or may alternatively consist ox hydraulic drive means provided with a telescopic piston When selective or interdependent adjustments of the detector panels are desired, the drive means 10S and/or 109 are energized or actuated It hydraulic drive means are provided they are connected in hydraulic circuits 119, 120, whiclrl include a hydraulic pump 121~ which can be selectively connected to one or the other of the hydraulic circuits and is operable in a sense corresponding to the desired direction of rno~ernent Ox the detector panel. The connection ox the pump 121 to the hydraulic circuits 119, 120 is controlled by two known sliding valves 122, 123, which are actuated by actuating Miss 124, 125, The means for driving rho pump are not shown.
and are~erergized and deenersiged, respectively, in response to a movement of the sliding valves 122, 123 to and from the positions for apportion of the detector par.eLs:in one sense or the other, ' ''?
,1.
~,39~
- I -It is apparent that etch slidivlg valve comprises grooves for a flow of the fluid in the various directions and is adjustable to a lockln~ position and formed with a land 126 or 127 for disconnecting tune hydraulic air-cults 119, 120 so as to disable the drive means 108, 109, eye,, to permit the opening of an emergency exit.
Examples of detent or locking Miss, bearing means, ratchet mechanisms and resetting means have thus I! teen described and shown Figure 15 is a block diagram, from which the detector yields 25 to 31, tile underarm box 18 (of Figure 4) and the detector units 11, 12 GO tulle foot detector structure ox Figure 1 are apparent ill detector fields or detectors are connected by lines 128, 129, 130 and 131 to a control subassembly 132~ Each line 130 or 131 may incorporate monitoring and testing circuits 133, 134 for checking the operation of the connected detectors and for cnec'.~irg wither the underarms have been inserted to an adequate depth into each underarm box, such as 18.
Toe control subassembly 132 comprises also the control drives for controlling the drive means for effecting adjustments, the locking means, eta, such as are sown in : Figures 11 to 14. Said control subassembly comprises a switch for turning ox and ox and reversing the germ-Tory 87, the switch 138 controlling toe excitation of tune electromagnet 116, and switch means for the actuators 124, 125 or the sliding relives 122, 123 or for the circuits for exciting said actuators :
: I: : : :
The control subassembly 132 is connected to a display 135 for indicating the results of the checks.
::
:
:~:
The two detector panels 1, 2 are interconnected at 4 by conventional means. or instance each panel comprises a carrying plate 77~ or 78, which carries the detectors, which constitute radiation-sensitive surfaces or detector fields 13 to 16 figure 2). The carrying plates 77, I may be integrally collected or may be welded to each other at 4 or may be interconnected by a hinge, which comprises intermitting sleeves and a rod I
"I.
~Z3948B
-- l S --extending through the sleeves. the blank strip 9 or 10 ensures that adjacent detector fields are spaced apart.
he design adopted in consideration of the reference figure is so selected that the flat radiation-sensitive surfaces or detector fields 13, 14 or 15, 16 provided on -the inside surfaces of the detector panels 1, 2 face each other on opposite sides of the angle 5.
Jo In such an apparatus, a person stands with his or her feet on a foot detector structure, which may be divided into two detector units 11, 12. The foot detector structure constitutes a tread surface and its two detector units 11, 12 define the positions ox respective fee-t.
Each of the two detector panels 1, 2 is provided in its upper portion with an underarm box 17 or 1&. The underarm boxes 17, 18 are parallel to etch other and are Jo so disposed relative to the blank strips 9, 10 that each underarm box 17 or 18 is close to that edge of the radian tion-sensitive surface 13 or 14 of the inner detector 19 or 20 which adjoins the vertical blank strip 9 or 10.
; ., It is apparent from Figure 3 that each underarm : box 17 or 18 is provided at its top and bottom with respective elongate, surface-t~pe detectors 21~ I
which have a length corresponding to the total length one underarm and of an extended hand. Said surface-type detectors converge toward those ends thereof which are remote from the associated pa of 1 or 2. Adjacent to said remote ends of the surface type detectors, the underarm boxes are provided with sensing means, such :: :
;
`
~2394~8 _ 7 _ as proximity detectors 23 or photoelectric detectors 24, for a check whether the underarms have been introduced to a adequate depth he proximity detectors 23 are mounted in a frill 79, which is secured to the remote ends of the surface-type detectors 21, 22. The elements which constitute a photodetector 24 may also be mounted on that frame.
The structure ox a detector panel 2 is apparent from the internal view shown in figure I. The vertical blink strip 10 extends from top to bottom between the detector fields 25 to 28 and the detector fields 29 to 31. The detector panel has also horizontal blank strip, which separate the detectors or detector fields 25 to 31 from each other. said rectangular surface-type detectors preferably have a vertical major axis. It is apparent from figure 4 that adjacent to the vertical joint 4 connecting the detector panel 2 to the other detector panel the detector panel 2 is provided with a vertical row of four vertically spaced apart detectors 25 to 28.
On that side o-F the vertical bulk strip 10 which is opposite to the joint 4 the detector panel 2 is provided with detector fields 2g, 30 and 21, which are disposed adjacent to and parallel to the detector fields 25, 27 ant 28, respectively. As a result a blank area 32 beside the detector or detector field 26 is provided on the outside of the blank strip 10. An underarm box 18 is arranged in that blank area 32. In this region the bray of the reference figure is not fully covered by the detectors. Ovi~ing Jo the provision of the underarm boxes, which extend at a distance from the center line 33, the introduction off the underarms into said boxes will result in such a constraint that optimum results Inlay be obtained by the measurement.
The underarm boxes are connected to the carrying plates 77, I of the detector panels by means of a frame 80, which sur-o~lds the surface-type detectors 21, 22. the arrangement of the detectors on the detector panel de-termites a certain elevation of the underarm boxes above the tread surface of the foot detector structure. what elevation ma be selected as desired and will vainly be selected in consideration of an assumed height of the reference figure.
inure 5 is an external elevation showing the checking apparatus of figure 1, particularly the detector panel 2. Optimum results will be obtained by the measurement if the underarm boxes 17, I include an angle of an order of 30 with the horizontal, although that angle may also be of a different order of magnitude. But it has been found that the provision of underarm boxes 17, I with such spacing from each other and with such upward inclination toward the hand end of the boxes wily ensure that persons of ordinary height will assume an optimum position.
Thai optimum design will facilitate the in production of the underarms so that changes from the desired position owing to a movement of the wrist joints will be prevented; such deviations may occur in known apparatus. In conjunction with the provision of only two detector panels each of which has a vertical blank strip in the middle of its width, the described arrangement of the ~lderarm boxes will facilitate the introduction of the underarms into the underarm boxes, and will cause the person to virtually spontaneously assume the desired position on the foot detector units 11, 12.
I,.
..~`
_ 19 - I 3 I
Rewarding -the arrangement and orientation of the underarm boxes 17, 18, these are only diagrammatically shown in Figure 4 and in practice will be inclined and diverse from the detector panels. the underarm boxes are preferably secured to the detector panels 1, 2 to form a rigid unit therewith.
The drawing shows an advantageous embodiment of the underarm boxes, each of which may be provided with more they'll two surface-type detectors.
The term "rigid unit" also includes a Kit comprising a pedestal, which carries the floor plate I.
In such "rigid unit" the two detector panels t, 2 may extend at an angle to each other at least in condition for the measvre~ent or at the time of` measurement. The -two detector panels may be pivo~ally movable in unison or Jay be interconnected by a hinge.
As described herein before, such hinge may comprise alternate intermitting sleeves mounted on the kern plates 77, 78 and a rod extending through the intermitting and aligned sleeves. Detent means may be provide for holding the detector panels in a selected position relative to each other.
Embodiments comprising hinge rods 35, 36 are shown in iris 6, 7 and 9.
:
ticketer panels 1, 2 which are hingedly in terconnected are provided with hinge rods 35, 36, on Russia the detector panels are molted and may be rightable mounted by means of hinge sleeves Mach detector panel 1 or 2 may be connected to the hinge rods 35, 36 by bearings ~235~
ardor by reshoot mechanisms 37, I permitting a movement only in one sense ~ndj if desired, by a resetting mushiness, which may be similar to an automatic door closer. In a preferred embodiment the ratchet mechanisms comprise a resetting drive, which is adapted to store resetting energy. Attention in this regard is also directed to Figures 11 and 12.
Such ratchet mechanisms 37, 38 are vertically spaced apart along the height or axial length of the hinge rods 357 36. the axis of the hinge rods 35, 36 obviously coincides with the apex of the angle at the joint 4.
he ratchet mechanisms may consist of commercially available mechanisms provided with resetting piston-cylinder units.
In the embodiment shown in Figures 6 aid 7, the assembly including the two detector panels 1, 2 is disposed between walls 39, 40 and 41 of a corridor or a check chamber of an assembly which has border walls 62, 63 on a basalt. The wall 39 is straight and continuous and the wall 40 has an arcuate portion 41, which permits a pivotal movement of the detector panel 2, which con-statutes a wing of a revolving door In Figure 6 the shutter consisting of a revolving door is shown with the two detector panels 1, 2 if an initial position relative to the center line of the foot detector units 11~ 12, which are parallel to the center line of the check chamber. In that embodiment the detector panels 1, 2 are pivotal movable in tune ::: :
Jo :
., I
.
~-~39~
direction of the arrow 42 to such a position that a person who has been shucked and has stepped back prom the two detector unitC3 11, 12 can proceed along the wall 39.
Figure 7 illustrates a modification, in which the assembly comprising the detector panels 1, 2 is initially in a position in which said assembly is a-symmetrical relative to the corridor extending in the direction of the arrow 43 so that the two detector units 12~ Ion receiving the feet extend at an oblique angle to -the walking direction indicated by the arrow 43. In embodiment in which the detector panels are initially asymmetrical with respect to the corridor the detector pled 59 may be pivotal moved to the position So', i.e., as far as to the wall 39, so that the corridor will be closed also in that position and the person can more easily leave the check chamber after the check.
.
In that embodiment, the wall 39 is provided with arcuate niches 60, 6-l, which permit a pivotal movement of the underarm boxes 17, 18 and may be provided with optional sealing means, not shown.
figure 8 shows a walk-through chamber defined by parallel walls 44, 45. A vertical hinge rod 46 is mounted on the wall 45 and is incorporated in a hinge for connecting two detector panels 1, 2, which are provided with vertical blank strips 9, 10, respectively.
he vertical hinge rod 46 is provided with a housing for a con-trolling ratchet mechanism 47. what ratchet mechanism effects a mutual check or adjustment to ensure that the two detector panels 1, 2 con be plvotally :
. .
moved only in alternation rather -than simultaneously in the directions of -the arrows 48, 49, respectively, to post-Schloss 50~ 51 in which they open a passage. That intrude-pendulous may be ensured by a computer or by an opposing ratchet mechanism having a driving or releasing element which is controlled by means for interpreting the results of the measurement.
Two alternatives may be selected for the embody-mint shown. In the illustrated embodiment, the two underarm boxes 17, 18 are secured to the vowel 45~ e.g., by means of brackets, which are mounted at the ends of the underarm boxes and are connected to the wall 45 by meals of plug.
'the underarm boxes 17~ 18 may reloan in their position owing to the blank area 32 shown in figures 4 and 5.
Nevertheless, a passage will be opened at least over one nail of the spacing of the walls 44, 45 when a check has been copulated or the next person is to be admitted.
That concept can particularly be adopted if vertical partitions 53, 54 are prude at the outer edges of the two detector panels 1, 2 and are movable to the positions 53~ and 54' indicated by dotted lines.
'the partitions 53, 54 are secured -to the carrying plates, e.g., by welding and preferably consist of plain walls although the partitions may also be provided vlith detector fields I: :
Figure 9 shows an arrangement in which vertical walls 55, 56 are rigidly connected to the wall 44 and the outer vertical edges of the two vertical detector panels 1, 2 are pivotal movable past those side edges of the walls 55,~56 which are dispose near the center of the :
I t corridor. In that embodiment the underarm boxes 17, 18 are secured to the detector panels 1, 2 and tune wall 45 is formed with preferably curved niches 57t 58 for receiving the two underarm boxes 17, 18 in alternation as one or the other of the two detector panels 1, 2 is pivotal moved about the rod 36 to the position designated 1' or 2', respectively.
In the embodiments shown in Figures 6 to 9, the ratchet mechanisms 37, 38 or the ratchet mechanism housing may be provided with means for effecting a release in an emergency Such means may unlock the two detector panels 1 and 2 from the means holding said detector panels at a predetermined angle to each other so that -the unlocked detector panels can be pivotal moved relative to each other to a position in which an emergency passage is opened between the walls of the check chamber. 'this may be accomplished with the aid OX externally disposed control means, not shown, or by means of an emergency release lever 64 provided inside the check chamber, particularly between the detector panels 1, 2 when they are in their initial position (figure I).
in the embodiments of the check chambers defined by the walls 39, 40 or 44, 45 and the walls 55, 56 attached thereto, the lateral builder walls 62, 63 may be provided so that it is apparent that said embodiments preferably consist of self-contailled assemblies which define a corridor. Such assemblies may be commercially available and can quickly be installed at a desired location. Such assemblies comprise -the illustrated side walls, a floor and a ceiling as well as the detector panels 1 and 2 extendil1g between -the floor and the ceiling.
Figure 10 is a front elevation showing two flat detector panels, Lucia extend at an angle to each other and are pro Ed with detector fields defined by dotted lilies.
The underarm boxes 17, 18 extend on the outside ox the detector panels Audi are mounted at the outer edges I 66 thereof, ego on the carrying plates 77, I figures 1 and owe The underarm boxes 17, 18 are connected to the carrying plates 77, 78 by adjusting means 71, 72, which are fixed to the carrying plates 77, I by fasteners 75, 76.
Said fasteners may consist of screws so that the elevation of the underarm boxes 17, 18 can be altered if each carrying plate 77 or 78 has a plurality of vertically spaced apart holes or receiving such screw. The ad jutting means 71, 72 permit also an ad,justmerlt ox the inclination of the underarln boxes 17r'18~ or this purpose, the adjusting means 71, 72 are provided with handles 73, I In accordance Vito Figure 10 the underarm 'boxes 17, 18 are downwardly and inwardly inclined toward their inner ends 67, 68 so that the center Hines 69, 70 of the underarm boxes 17, 18 intersect in a plane which bisects the angle 5 having tile apex I
Only for the sake ox clearness, the above-mentioned bearing means and ratchet mechanisms will now be explained also in conjunction with control eons .
: ' Figure 11 shows how the two detector panels 1, 2 are pivoted on a hinge rod 35, Welch extends through the :: :
alternate intermitting sleeves 81 to 83 ox the detector panel 2 and 84, of the detector panel 1 and into a pedestal 85 mounted on the flour plate I A driving gearmotor~87 is mounted under the floor plate 3 and it coupled by coupling mean-s 88 to the hinge rod 35 ::
.
- 25 - ~2~48~
Tulle motor 87 is coquetted to a pyre source by a Septic 136, weakly is so disowned in known manner Tut it cay be actuated to determlv,e or tie motor 87 a desired sense of rotation or to reverse the rotation and to make and Rex the circuit, The motor 87 is adapted to rotate the hinge rod and to rotate the detector panels 1, 2 to a selected annular position relative to each other, in which the detector panels are locked by a detent mechanism such as is shown in Figure 12.
. .
Bearing rings 89 to 93 may be interposed between the sleeves 81 to 850 Figure 12 is a ~ra(Jmentary sectio~cll view take ox line XII-XII in FicJure 11. The hinge rod 35 and the sleeve 81 are apparent. The sleeve 81 is secured to tile detector panel I A housing go is mounted on Tao sleeve 31 and contains a Dwight pin go, which is biased by a spring 95 and extelA1ds through an opening 97 ox the sleeve 81 and into a recess go formed in the hinge rod 85~ That detent pin 96 car be retracted by hand so that it can be inserted into another detent recess 99 or 10C when the angular position ox the detector panels relative to each other is to be altered. The detent recess may be so shallow that the detector panel 2 can be held in position relative to the hinge rod 35 but can be rotated about said rod 35 by a force which exceeds a threshold value that is de-ter,mined by the detent mechanism and the spring 95. The detent pin 96 is only diagrammatically indicated in Figure 11~ to least one detent pin 101 is mounted on a sleeve 84 connected to the detector panel 1.
it .
- of, - ~23~88 Because he detest mechanism can he disergasc-d~
it constitutes a ratchet mechanism and the cluck chamber can be opened for an emergency.
Figure 13 is a fragmentary view Sloan loller portions of the detector panels 1, 2, which in that embodiment ore secured, ego, to a common sleeve 102, which is rotatable mounted on the hinge rod 35~ The sleeve 102 is provided at its lower end Will a carrying ! flange 103, which is supported on a ring bearing 104, icky is mounted on an upstanding cylindrical ring 105, which is mounted on the pedestal 86. A spiral spring 107 is disposed bottle an axial lug 105 depending from tile sleeve 102 or prom the currying Plenary 103, on the owe hand, and the hinge rod 35, which is mixed in the pod-vestal 86, on the other hand. That spiral spring 107 is strained as the detector panel assembly is rotated in one sense and is relaxed as it resets that assembly to its initial position. The end positions of said assembly : are defined by stops 114, 115, which are disposed, eon., between the carrying flange 103 and the cylindrical I ring 105, and by at least one locking device, which consists, erg,, of an electromagnet provided with an armature 117, which is movable in response to an excitation of the electromagnet. ennui the detector panels are in one or the other of their end positions, said armature 117 cay be moved into a recess 118 formed it the carrying; flange and the armature 117 can be moved out of the recess when the assembly is to be unlocked for a rotation Jo Tile electromagnet is in convolutional manner a separately excitable electromagnet comprising a coil and a diagrammatically indicated supply lead 137, which its : ~co~mected by an excitation control switch 138 to a battery.
- 27 - ~23948B
The switch 138 may be a o-pole switch, The arrangement described just before constitutes a single embodiment of a resetting drive provided with spring means and locking means.
Separate drive means for moving the detector panels 1, 2 are show by way of example in Figure 14.
Each detector panel is individually movable about a hinge rod I on which the detector panel is mounted, ego, by mean of sleeves as shown if Figure 11~ and is zinged, e.g., at its lower end to a drive 108 or 10~, which is supported by hinges 110 or 111 to a bracket 112 or 113 molted on the base plate I Said drive means may consist ox electromagnets havincJ an. extensible or no-tractable armature or may alternatively consist ox hydraulic drive means provided with a telescopic piston When selective or interdependent adjustments of the detector panels are desired, the drive means 10S and/or 109 are energized or actuated It hydraulic drive means are provided they are connected in hydraulic circuits 119, 120, whiclrl include a hydraulic pump 121~ which can be selectively connected to one or the other of the hydraulic circuits and is operable in a sense corresponding to the desired direction of rno~ernent Ox the detector panel. The connection ox the pump 121 to the hydraulic circuits 119, 120 is controlled by two known sliding valves 122, 123, which are actuated by actuating Miss 124, 125, The means for driving rho pump are not shown.
and are~erergized and deenersiged, respectively, in response to a movement of the sliding valves 122, 123 to and from the positions for apportion of the detector par.eLs:in one sense or the other, ' ''?
,1.
~,39~
- I -It is apparent that etch slidivlg valve comprises grooves for a flow of the fluid in the various directions and is adjustable to a lockln~ position and formed with a land 126 or 127 for disconnecting tune hydraulic air-cults 119, 120 so as to disable the drive means 108, 109, eye,, to permit the opening of an emergency exit.
Examples of detent or locking Miss, bearing means, ratchet mechanisms and resetting means have thus I! teen described and shown Figure 15 is a block diagram, from which the detector yields 25 to 31, tile underarm box 18 (of Figure 4) and the detector units 11, 12 GO tulle foot detector structure ox Figure 1 are apparent ill detector fields or detectors are connected by lines 128, 129, 130 and 131 to a control subassembly 132~ Each line 130 or 131 may incorporate monitoring and testing circuits 133, 134 for checking the operation of the connected detectors and for cnec'.~irg wither the underarms have been inserted to an adequate depth into each underarm box, such as 18.
Toe control subassembly 132 comprises also the control drives for controlling the drive means for effecting adjustments, the locking means, eta, such as are sown in : Figures 11 to 14. Said control subassembly comprises a switch for turning ox and ox and reversing the germ-Tory 87, the switch 138 controlling toe excitation of tune electromagnet 116, and switch means for the actuators 124, 125 or the sliding relives 122, 123 or for the circuits for exciting said actuators :
: I: : : :
The control subassembly 132 is connected to a display 135 for indicating the results of the checks.
::
:
:~:
Claims (12)
1. Apparatus for checking, persons for radio-active contamination, wherein at least two detector panels (1, 2), which are provided each with detectors on at least one broadside and extend at an angle to each other and in-clude a space for accommodating a person to be checked, said detector panels (1, 2) extending at an angle to each other are rigidly interconnected to consti-tute a rigid subassembly, which is mounted for rotation about a vertical axis of rotation (35, 36, 46), and a resetting drive is connected to said rigid subassembly and comprises means for storing re-setting energy as the rigid subassembly is rotated about said axis of rotation from an initial position in one sense and for expending said energy to reset the rigid subassembly to said initial position when said rigid subassembly has been released.
2. Apparatus according to claim 1, wherein the detector panels extending at an angle to each other define an apex of the angle included by them and are inter-connected at said apex by mounting means which permit said detector panels to be moved in alternation, said mounting means are provided with adjusting means, which are adapted to control the adjustment of two detector panels to a predetermined angle relative to each other, said mounting, means are provided with ratchet means (37, 38), which are operatively connected to two adjacent detector panels and limit the adjustment of the detector panels relative to each other to a certain degree and constitute resetting means for resetting the detector panels relative to each other to the pre-determined angular postion.
3. Apparatus according to claim 1, wherein a tread surface is disposed in the space included by the detector penals (1, 2) and is formed by a floor plate (3), which is provided with a foot detector structure having two detector units (11, 12) for respective feet.
4. Apparatus according to claim 1, wherein said at least to detector panels (1, 2) are provided with mounting means, which are adjustable to change the angle which is included by adjacent detector panels, said mounting means are adjustable for adaptation to the contour of a reference figure, and at least two detector panels which carry detectors provided with connecting means including a hinge.
5. Apparatus according to claim 1, wherein a plurality of detector panels (1, 2) are provided, each of said detector panels is provided on both broadsides with detectors, said detector panels are interconnected to form a rigid subassembly consisting of a revolving door, which is mounted for rotation about said vertical axis (36, 46), the detector panels constitute wings of the revolving door, means for locking and locking said door are provided between the rigid subassembly and said axis of rotation (36, 46), and means are provided for processing the output signals of the detectors and are connected by a functional link to the locking and unlocking means.
Apparatus according -to claim 1, which provides a walk-through check chamber in which an axis of rotation (35) is disposed, at least one wall (40) defining the walk-through check chamber is formed with a niche (41), in which an edge of a detector panel (2) is pivotally movable, the detector panels (1, 2) extend at a fixed angle to each other and are mounted for rotation about the axis of rotation (35), a resetting mechanism (37, 33) is provided between the axis of rotation and the interconnected detector panels and includes spring means, which are arranged to store resetting energy when the detector panels are rotated to permit an exit of a person, and when the detector panels have subsequently been released the resetting mechanism is arranged to use said resetting energy to reset the detector panels to a position for receiving another person to be checked.
7. Apparatus according to claim 1, which provides a walk-through check chamber in which an axis of rotation is disposed, two detector panels (1, 2) are mounted for rotation about said axis of rotation (36, 46), each of said detector panels is pro-vided with detectors on that broadside which is opposite to the wall defining the walk-through check chamber, the axis of rotation (36, 46) is disposed beside said wall, each detector panel. (1, 2) constitutes a hinged door, which is individually movable, common control means (47) are operatively connected to both detector panels and operable to swing open the detector panels (1, 2) in alternation and to lock each detector panel (2, 1) when the other is swung out, and locking means are provided for controlling the locking and unlocking of the two detector panels in alternation.
8. Apparatus according to claim 5, characterized in that the means for locking and releasing the revolving door are releasable and consist of two parts, which are adapted to the interlocked by inter-locking means, which in one condition rigidly inter-connect said two parts and in another condition elimi-nate said rigid interconnection so that the detector panels (1, 2) can then be swung as desired to open an exit in an emergency.
9. Apparatus according to claim 5, wherein a subassembly comprising a plurality of detector panels (1, 2) is rotatably mounted and includes detector panels (1, 2) which are interconnected to constitute the wings of a revolving door, a mechanism comprising connecting means and resetting means is provided between the sub-assembly and mounting means for the subassembly and is adapted to be unlocked and consists of two parts, which are adapted to be connected by interlocking means, which in one condition rigidly interconnect said parts and in another condition eliminate said rigid interconnection so that the detector panels (1, 2) can be rotated as desired to open an exit in an emergency.
10. Apparatus according to claim 1, wherein individually movable detector panels or a set of inter-connected detector panels is provided as well as mounting means by which said detector panels are mounted for ro-tation about an axis of rotation. Coupling means are provided, which are constituted by one of the parts of the group consisting of a resetting drive, resetting mechanism (37, 38), control means (47) locking and un-locking means and connecting means, which coupling means are connected to at least one detector panel (1, 2), on the : :
:
one hand, and to one of the elements of the above-mentioned group, which also includes an additional detector panel, mounting mean, for detector panels and means defining the axis of rotation, and which coupling means are disengaeable and when disengaged permit the detector panels (1, 2) to be freely pivotally movable relative to each other so as to open an emergency exit.
:
one hand, and to one of the elements of the above-mentioned group, which also includes an additional detector panel, mounting mean, for detector panels and means defining the axis of rotation, and which coupling means are disengaeable and when disengaged permit the detector panels (1, 2) to be freely pivotally movable relative to each other so as to open an emergency exit.
11. Apparatus according to claim 2, wherein to interconnected vertical detector panels (1, 2) are provided, which extend at an angle to each other and carry the surface type detectors on the broadsides facing each other across the angle, and adjacent detectors on each detector panel are separated by a vertical blank strip (9, 10), which is disposed in consideration of a reference figure, said vertical blank strips (9, 10) are arranged near those portions of the reference figure or of a person standing on the floor plate which are closest to the detector panel.
12. Apparatus according to claim 11, wherein the angle between the two detector panels (1, 2) lies in the range from 90 to 118 degrees.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3505527.8 | 1985-02-18 | ||
| DE19853505527 DE3505527A1 (en) | 1985-02-18 | 1985-02-18 | DEVICE FOR CONTAMINATION MONITORING AGAINST RADIATION EMISSIONS OF PERSONS |
| EP85107746.1 | 1985-06-22 | ||
| EP85107746A EP0196354B1 (en) | 1985-02-18 | 1985-06-22 | Apparatus for monitoring radiation contamination of personnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1239488A true CA1239488A (en) | 1988-07-19 |
Family
ID=25829498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000501273A Expired CA1239488A (en) | 1985-02-18 | 1986-02-06 | Apparatus for checking persons for radioactive contamination |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1239488A (en) |
-
1986
- 1986-02-06 CA CA000501273A patent/CA1239488A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4731536A (en) | Apparatus for checking persons for radioactive contamination | |
| ES2797576T3 (en) | Access control device | |
| US8844204B2 (en) | Security door system | |
| ES2354753T5 (en) | System and procedure for luggage storage | |
| EP1402124B1 (en) | Shielded structure for radiation treatment equipment and method of assembly | |
| US20050161000A1 (en) | Window mounted pet door | |
| US7703241B2 (en) | Security gate | |
| US5481837A (en) | Storm shelter for use with a mobile home | |
| EP0305340A1 (en) | A security vestibule entry for controlled access to banks and the like | |
| AU2018247267A1 (en) | Passage Control Device for Persons | |
| CA1239488A (en) | Apparatus for checking persons for radioactive contamination | |
| US20190224057A1 (en) | Load-carrying System | |
| US3452493A (en) | Elevated modular building construction | |
| JP2016516927A (en) | Underground hangar for helicopter | |
| SE442439B (en) | BUILDING INSTALLATION DEVICE FOR HOTEL ROOMS | |
| US20220136305A1 (en) | Touchless door open/close system | |
| KR102173589B1 (en) | Surveying system by Drone | |
| US3512314A (en) | Portable layover units | |
| DK166513B1 (en) | revolving | |
| EA008657B1 (en) | Integrated microwave transceiver tile structure | |
| MX2010007801A (en) | Defence or protection equipment for controlling the entrance of persons. | |
| US20070160820A1 (en) | Architectural ferrocement laminar automated construction | |
| GB2249574A (en) | Turnstile assembly | |
| US3318046A (en) | Wide armed turnstile rotor | |
| ES2275368B2 (en) | "ADAPTABLE CABIN FLOOR COUPLING ASSEMBLY FOR SHORT-DISTANCE AND CONVENTIONAL PASSENGER REACTION AIRCRAFT". |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |