DE1673868A1 - Method and device for checking cigarettes for badly packed ends - Google Patents

Description

15390/91

RBINOH) S TOBACCO COMPAHY, Winston Salem Bf.C / üSA

& reii wiä device for checking cigarettes for badly packed ends

The present invention relates to a method of testing the density of a versus current of a Medium resistant surface on a workshop or on the measurement of a dimension of such a surface or the distance between a component and such a surface, and in particular the area cigarette making with automatic control It relates in particular to the detection of cigarettes, where either one or both ends are badly paired

009886/0713

i3ind or where a filter piece is missing, and on the Throwing out those cigarettes from a conveyor “Certain Features of the invention have another application in the field of measurement and testing, in particular for pneumatic measurements.

Older devices for tracking badly packed Cigarette ends usually have mechanical feelers. See, for example, U.S. Patent No. 2,284,117 and 3 116 478. If a mechanical sensor is used, then either the movement of the cigarette must be stopped, while moving the mechanism carrying the probe towards and away from the cigarette, or the fat mechanism must run parallel to a considerable rope of the path of travel of the cigarette, as in the above Best patent stated is “The mechanisms according to the state of the art are unsatisfactory, especially if the newer cigarette making machines which deliver 1500 to 3000 cigarettes per minute are used. Of the The mechanism must therefore test 50 cigarettes per lake; the Prior art devices are incapable of making as many measurements at this speed to be carried out precisely o

0 09 8 8 6/0713 CONSTRUCTION ORfOtNAL

üGfceißtand of the invention let a method for testing the Dickte a to the flow eineB medium widerstandaä ^ ift;!) surface on a workpiece or for measuring Qiz) QV dimension of such a surface or dee gap between a base portion and such a surface, which is characterized is carried out that one directs an air jet from the nozzle against said surface and the

measures at a point near the nozzle opening, vr obtain a value for the desired measurement au-,

G-ernäß the present invention are cigarettes tested poorly packed ends or the presence of a Pilterspitzö (both are important for producing acceptable Sigeretten) by directing against d "o cigarette end sin Druclcluftetrahl ₀ Bine pressure measurement is in or around the close the nozzle through which the jet emerges. «The tip of the nozzle is only a short distance from the end of the cigarette. The cigarette continues to run during the test and the nozzle can stop. The pressure in the nozzle changes depending on the state of the end pack or the presence or absence of a filter tip in the cigarette. If the packing is bad or if a filter tip is missing, then the pressure at the point of pressure measurement will be different

009886/0713

unlike when the cigarette is well packed or has a parent's tip. This pressure difference is used Oines conventional mechanism for FJI-Guerung, the ouch the cigarette, which gives a different © pressure measurement, the cigarette conveyor _β takes

In a preferred embodiment, a nozzle with two or three-way flow carriages is used, with a high pressure stream flowing through the inner flow path and a low pressure stream flowing through the outer flow path. The pressure is measured in the external flow path . If the cigarette is poorly packed or if the filter tip is missing, it can be higher or lower than the pressure when the cigarette is tightly packed or has a filter tip, depending on the nozzle foria is used-,

The diagram with concentric flow paths can be advantageous used in pneumatic and general purpose measurements.

The invention will now be explained in more detail with reference to the accompanying drawings. In the drawings show:

009886/0713 BAD original

I ¹ Ig ₀ 1 a similarly schematic plan view of a cigarette guide stream oil, which is equipped with an inventive device;

3? Ig. FIG. 2 is an enlarged view of a pressure responsive switch used in the device of FIG Figo 1 is used;

3? Igo 3 Q ine view of a modification of the Pig device. 1;

Fig «, 4 a schematic view of a more complex End scanning device according to the invention;

Fig _ö 5 is a partial view on the line VV of Figo 4;

Fig ... 6 is a graphical representation of certain characteristics of the concentric nozzle of Figure 4 _e;

I ¹ Ig. 7 eggs. enlarged (cross-section of a modification of the subject of the invention, which can be used in either the Pig "1 or Pig" 4 device;

3? Igo 8 a cross section on the line VIII-VIII of Fig. 7;

9 is a fairly schematic view showing the use of a concentric nozzle of the type shown in FIG Figure 4 illustrates the type illustrated in connection with a general purpose heating device; and

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Figo 10-12 modified nozzle designs, the norm for use in the Ausführungaf of 4 according to the invention are suitable ,.

Pig o 1 shows a simplified form of an apparatus that embodies the principles of the present invention. A cigarette guide drum 1. of conventional construction is provided on its outer surface with hats 1a, a cigarette unit 3 being held in place in each groove by a conventional vacuum fitting (not shown). The cigarette unit can be a single cigarette with both stalls exposed for bad pack inspection or bad pack inspection at one end and the presence or absence of a filter tip at the opposite end, or it can be a double length filter cigarette Having a central double-length filter, as is customary in the manufacture of cigarettes with filter tips, before it is cut in the middle into a pair of individual cigarettes, the drum 1 rotates on a shaft 2 in the direction indicated by the arrow Direction ₀ As it rotates, the opposite ends of each groove will come up against one

4th
Pair of probes / overo Each probe is through a

Line 5 and a fixed constriction 6 from a customary

BAO ORIGINAL

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ChT-Ii .DrucKLuftqiaelle fed with air _o Each test head be s: Ltst also has a nozzle 7 _f which is located downstream of the constriction β bfsfind & t and derail Spitsa from the ends of the drum ■ ^; Cigarettes passed by, only a small distance be ai-tato boron Pressure between the nozzle 7 "and the constriction 6 is transmitted via a line 8 to a pressure-responsive selector 9, which is shown in detail in FIG. 2." The switch 9, which responds to brackets, on the opposite types of clone of the drum 1, influences a solenoid 10, "3 operates a piietiruatii e ejection mechanism 11," the lctatere Mochanissius "causes the vacuum that holds the cigarette in the groove to be switched off and be \ w.ß sum of compressed air base of the hat, so that dropped the cigarette from dor surface of Tronaael 1 "Any other suitable mechanism for ejecting schadhaf th cigarette" used, such as a mechanism pneumatically: -: Ways an axial thrown.

Each of the switches 9 has a housing 12 which encloses a chamber 13 which is connected to the line 8. One of the chamber 13 is closed by a flexible pressure-sensitive diaphroma 14 which has a switch contact 15 in its center, which works with a fixed contact 16. The chamber faces the atmosphere on the side 14 opposite the diaphragm.

009886/0713 P ^o * ^

ventilates r "like EoB ,, through, a passage 12a. A helical spring 17 presses the diaphragm 14 into contact position«, the contact ix., one of the switches 9 closes a circuit (Fi £ ₃ 1) from a suitable electrical energy source,> ie Z ₀ Bo a transformer 18, with the solenoid 10. The switches 9 are connected in parallel with respect to the transformer 18 and the solenoid 10, so that a switch can already energize the solenoid.

If the animal nozzle tip is opposite end of the cigarette tightly packed or carries a filter tip,
c. "lic that the cigarette has an acceptable manufacturing quality, so that the pressure" in the test head 4 downstream of the constriction 6 "remains within a predetermined, relatively high range and is not very different from the pressure that is encountered, when the nozzle is the end of the
On the other hand, when a poorly packed cigarette or a cigarette lacking a filter tip is encountered, the pressure drops considerably, whereby the so-holder contacts 15, 16 are closed by the spring 17.

In addition, the jet has a tendency to loose tobacco particles from the unfiltered ends of the cigarettes

009886/0713 8AD ORIGINAL

Remove su, increasing the pressure drop ,, Against the mechanical sensors can be used in the previously known devices Do not track down a badly packed end of a cigarette, as the feeler presses against the tobacco and this increases the density of the pack while the test is being carried out The device also picked up some poorly packaged cigarettes that were let through by the older device.

Both ends of the cigarette are tested at the same time, and if one end is found to be poorly packed or that a filter tip is missing at one end, then the cigarette has an unacceptable manufacturing quality at one end and is ejected by exposure to the solenoid. . The time for the actuation of the switch 9 and for the energizing of the solenoid 10 to activate the ejection mechanism must be coordinated with the time required for the movement of the cigarette along the drum surface from one location in the vicinity of the probes 4 to one Place in the vicinity of the spout ohaniemua 11 is required ₀ If necessary, a suitable spoke neohanism can be used to record which cigarettes are defective and to locate them at a suitable point during their run along the troansl or one

009886/0713

other Fordeinasehanismuo ausauirerfeno

It has been found that when using a simple nozzle as shown in PIg ₀ 1 it is necessary that the nozzle be no more than 0.8 mm from the end of the cigarette. In such circumstances the pressure range is within the Nozzle air delivery can be used between about 0.055 to about 0.35 at ο Lower pressure results in a loss of sensitivity. A greater pressure results in a tendency to blow tobacco out of the ends of evenly tightly packed cigarettes.

Fig. 3 explains a modified orientation of the test head 4 with respect to the drum 1 and the cigarettes held thereon. From Fig. 3 it can be seen that the Orientation of the probe 4 with respect to Pig. I is changed so that the axis of the nozzle 7 is not perpendicular to the Ends of the cigarettes, but at an acute angle χ to the center line of the cigarette. The axis of the test head 4 and the nozzle 7 are preferably arranged in a plane which is radial with respect to the axis of the drum 1 extends so that the exit from the nozzle is a component which is directed radially inward to the axis of the drum 1. Such an angular arrangement of the test »-

009886/0713 bad or _IG1 nal

~ 11 -

f s 4 mid of the nozzle 7 composes the loss of from the

The medium flowing out of the cigarettes 3r where the (.Vborilache dor drum lies approximately a cigarette radius below the outermost surface of the cigarette.

Bio-yiiilr.ol-like arrangement, as shown in Fig. 5, can be such that the axis of the test head is either in a vertical Jibene, Qiner horizontal plane or iri; cndcxnor Libenc licg-b, which is radial or odor with respect to the drum 1 in the. is essentially radial.

The illustrated in don 3? Ig ₀ 4 6 bit device can be operated at a higher Bwigaaagadruokbereich and allows a greater distance swiachen the end of the nozzle and the cigarettes. Although the distance between the nozzle and the end of the drum 1 does not change significantly as the drum rotates, it must be taken into account that the cigarettes on the drum are not always arranged in the same position, so that the distance between the end of the cigarette and the nozzle can change "

In Pig. 4 is a nozzle 20 with a central flow path 21 with a circular cross-section and a peripheral flow path 22 with an annular cross-section

009886/0713

Compressed air with a regulated pressure, preferably between 0.35 and 0.7 at, is fed from a pump or a compressor 23 duroli a line 24 to the flow path 21. Air also flows through line 24 through a fixed constriction 25 and 'a line' S6 to Ströraungsweg 22, the constriction 25 is designed in such a way that the Druok in flow path 22 is just large enough to prevent this flow path of tobacco particles or other foreign materials, which it could clog »kept free ο Bin pressure of about O _t O35 at or less" is bovörsugt Dsr air jet exiting the flow path 21;. has a relatively high speed, 'while the current flowing through the flow path 22 air has a vßrhältnismäßig low speed "

Cigarettes which are to be tested, run on a! Drum 27 with grooves 27a in which cigarettes are held 28 by conventional means, at the tip of the nozzle 20 by the _β Durohmesser the conventional cigarette is approximately 8 mm. " Satisfactory results have been obtained with a nozzle assembly with the following dimensions: outer diameter of a nozzle 5.1 mm; largest diameter of the flow path 22-3 »22 mm; smallest diameter of the flow path 22 - 2.24 mm; Durohimeter of flow path 21 at the tip 1.27 mm "

B OBlGlNAL 0 09886/0713

Fig, 6 explains the change in pressure in the annular Flow path 22 as a function of the distance from the nozzle tip from a vertical surface blocking the flow. In the experiment specifically explained, the pressure was The air supply to the inner nozzle is 0.35, never through dashed line 60 is indicated. If both nozzles were completely unaffected, then the measured value was Pressure in flow path 22 0.035 atii, like this at 61 au see is.

When both nozzles were completely blocked, the pressure measured in both nozzles was essentially equal to the higher pressure of the two pressures > namely 0.55 at, as shown at point 62. When the position of the blocking surface moves away from the nozzle Then the pressure in nozzle 22 decreases along curve 65 and, at about 1.0 µm from the blinding surface, the pressure in flow path 22 has dropped to substantially atmospheric, as indicated by point 64. As the distance from the nozzle tip to the obstruction surface continues to increase, the pressure in flow path 22 falls below atmospheric pressure and reaches a minimum at about 2.5 mm.The pressure in flow path 22 then increases gradually as the distance from the DUen-

0 0 9 8 8 6/0713 ** ° ° ^ °

peak e for blocking surface rises and reaches at. approximately 6.1 nanometers from the blocking surface again essentially atmospheric pressure, whereupon it gradually decreases to the Speiaungsdruok vono _? 055 increases; - this is never seen at 61.

It is desirable to have a pressure dependent device. As shown, operate at the steepest part of the curve & u, so that the sensitivity is marl times, This steepest rope is present between points 62 and 64. Of course, it is desirable that there be a small distance between the tip of the nozzle and the surface being blown o A distance of approximately 0.8 mm is currently preferred, which is why the point 67 represents the base pressure or, in other words, the normal pressure encountered when the jet of air hits a densely packed cigarette or a filter tip. When this distance is used with cigarettes, a pressure drop will be encountered when a poorly packed end of the cigarette or an end without a filter tube passes the nozzle _o While the distance between cigarettes on the drum also causes a pressure drop, this pressure drop is and can be less pronounced easily from a pressure drop that from one poorly packed . End of cigarette originates, can be differentiated

6AO ORlQlNAL 009886/0713

the mechanic that puts the cigarettes on the drum, not every one of its cigarettes on the drum in the same axial position along the Ircmmel, but the Veröndmg dor axial position is smaller than the change, dl « caused by poor packing or the absence of a filter tip, eo that the axial change in position is of the same order of magnitude as it is between the cigarettes "

Other points on curve 63 can be used as work points. For example, a dot in the negative print area can be used. Some points in this area can produce two changes in pressure in response to a poorly packed cigarette, that is, a decrease in pressure and a subsequent increase in pressure as the pressure passes through the mini-space on the curve. Such a system can also be used, since the initial reduction in pressure serves as a signal for a defective cigarette and the subsequent increase in pressure can be ignored. If, furthermore, a point such as B ₀ B. the point 66 is used as the operating point, then the presence of a cigarette with a poorly matched end or a cigarette without a filter is indicated by an increase in pressure in flow path 22 and not by a pressure drop.

009886/0713

All signals could be used in such an increase, since Indicates that a cigarette should be rejected · Oils The presence of the negative pressure area in the 63 cart its cause presumably in a Bernoulli effect. Hit end » In other words: the loft that flows through the central nozzle and deflected by the opposite surface creates this area a vortex in the area of the tip of the flow path 22, soft air sucks out of the flow path 22 and the Relieves pressure at this point. This can be referred to as the suction effect.

The pressure la flow path 22 then becomes a suitable one Druckaeßeinrichtung sensed. Venn a cigarette with one poorly packed end or a cigarette without a filter tip passes the nozzle tip, then the pressure drops in Ströaungeweg 22 considerable.

The DruakfiihleiBrichtung may be a switch as ve at 9 in fig. Z is pasty. In addition, a StrtS-inmgssedlumTerstäTkervorrichtuiig 29 is of conventional design provided as "Schmitt-trigger" (Schmitt trigger) is known. Omr Sohoitt-Auslöeer 29, the mark having a construction and an operation as in ⁹ FIuIdIe Systems Design Guide " , published by Fluidonios

009886/0713 bathroom

of the Xmperial-Bastman Corporation in Chicago, Illinois _P , receives a compressed air mifuhrang from a line 24 and is equipped with inlet openings 29a, 29b. The opening 29a is connected to the line 26. The opening 29 is connected to the compressed air line 24 by a line 50 and a valve or by a variable constriction 31.

The term "Schmitt trigger" is from an analog electronic device derived. The Schmitt trigger 29 responds to a pressure difference .an the openings 29a and 29b »If the pressure difference falls below a certain value, which can be adjusted with the aid of the valve 31 can, then the cut trigger 29 switches the air flow from one outlet 32 to a second outlet 33 · If the pressure difference is above this Value is, then the Schmitt trigger releases compressed air only from the outlet opening 32. The outlet openings 32 and 33 are connected to the inlet openings via a conventional one Proportional flow medium amplifier 34 connected, of which one type is described in the aforementioned publication is ο the flow medium & stronger 34 becomes bit Compressed air from a main air line 24 and a branch line 35 fed · The outlet lines 36 and 37 dee

009886/0713

Stromungsmediumsverstarlcera 34 are bits of an actuator 58 for the. Ejection mec & aniam »connected, which may be similar to that shown at 1t in FIG is.

As an alternative to the Schmitt-Aueluser, a proportional amplifier can be used, or several can also be used such amplifiers connected in cascade in series ■ »ground.

It should be emphasized that in each cigarette making machine a duplicate of the device shown in Pig 4 would be provided at the opposite end of the HaBchiTW scr test of the opposite ends of the cigarettes, and that such a duplicate mechanism would also be connected to the ejection mechanism 38.

When the cigarette head on testing a Troeeel be guided past 27 with auxiliary e, then the BNRt-Tlftohen 27b should (see Fig. 5) of the drum "wipe the muting 27a provide an answer for the uruckfühlmechanismus which is equal to that produced by a tightly packed cigarette or a cigarette with a filter tip is given.

BATH ORIGINAL 009886/0713

The bottom of every hat should be semi-syllabic so that it fits tightly against the cigarette without the air gap! when the side is present, it may be desirable to extend the sides of the groove a short distance beyond the semi-cylindrical bottom radially outward. When this happens, the surface 27b between the grooves can more effectively block the flow of air to the nozzles, thus producing a pressure that is beyond what a good cigarette gives Half cylinders also inevitably have a small air gap on each side of each cigarette. This effect of these air gaps would be the opposite of Stan · In other words: they would indicate a defective cigarette, if the cigarette is in fact not defective be.

The central line of the nozzle, the path of movement of which is indicated in relation to the cigarettes by the line 55 in FIG. 5, should not lie radially outside the central lines of the cigarettes when the nozzle is aligned with the cigarettes, as in FIGS. 1 and 4 is shown · the central line of the nozzle may possibly _o within the central line of the

009886/0713

There are cigarettes lying around, but in this case, greets Through "iter of Sträsjangeweg 22 the underside of plumb line 27" do not overlap.

When the can is turned on the central line of the cigarettes arranged at an angle, this roped in Fig. 3 then the center line of the nozzle should be the center lines cut the cigarette or should cut the bottom of the cigarette at a point that is slightly radial the layers of the cigarette central line has moved inwards on the axis of the Xronnel.

When the cigarettes are fed by a Fördersechaaismue other kind, no smooth surfaces swisoheu the butene having _r as iet 27 the case with the Troonel, then it may be necessary ".swisohen the nozzles and the 3chad, tt-Aw> iaaeT 29 See a eynohrocene YentΠ aeohanl —us rorsu, as illustrated in FIGS. 7 and 8. The hm let general & eln vit 40 is assigned and

there is a disk 41, which turns on a VeUe 42, and there is a number of holes 41a on the edge of Tersenesu The line 26 is dt the opposite sides of one aehaus 43 »in which the disk 41 rotates, old direct opposite openings connected · Soalt is the line

009886/0713

26 Sum flow path 22 only open during such times »Separate a cigarette passes the end of the nozzle. During the intervening times, the line 26 is effectively closed and thus a high pressure is fed to the opening 29a of the Schmitt trigger through the line 26a from the constriction 25, since the flow through the constriction is then considerably reduced, and the pressure at the same is considerable is reduced »

o 9 illustrates a concentric nozzle 44 «which is in a HeSvorrichtung is used. The device is on one Support plate 45 attached "A post 46 extends upwards from the support plate 45 and carries a ring 47" to which the nozzle 44 is attached · The nozzle 44 let sit an outer annular flow path 48 and an inner one Flow path 49 of circular cross-section connected · The inner flow path is connected by means of a conduit 50 to a pressurized compressed air source connected. The outer line 48 is via a line 41 with a below low pressure source of pressurized air. Tue Lines 50 and 51 correspond to lines 24 and 26 of FIG Pig 3 The pressure in line 51 can be measured and this measurement can be taken as Mad for the distance X between the tip of the nozzle 44 and the test piece 52 which is on the

009886/0713

Carrier 45 rests, taken «to earth ·

In each of the modifications of FIG. 4 or FIG. 9, the HocMruekstrom through the peripheral aomilar flow path and the central circular flow path can be used for pressure measurement. If, however, the flow paths are reversed in this way, then this is Pressure measurement not so sensitive, and the spitee's. jet must be closer to. the surface to be measured is attached

Figures 10 to 12 explain further nozzle constructions, which are suitable for use in the embodiment of FIG. 4 according to the invention.

The nozzle of Fig. 10 is made from a housing of rectangular cross-section and hermetically sealed at the distal band. An inboard curved diaphragm 56 is positioned toward the longer cross-sectional dimension of the housing, with the straps of the diaphragm being hermetically attached to the interior surfaces of the housing. The diaphragm 56 creates the inner chambers 57 and 58 separately. The Kaaoer 57 corresponds to the flow path 21 of the DUeenkonstrulrtion tob fig. 4 ναοά is duroh, the line 24 bit compressed air. Dl «iMMtr 58 1st

BATH ORIGINAL

009886/0713

the pressure fillkamittsr that the flow path 22 of the nozzle of Pig., 4 corresponds and is supplied through line 26 with air fed by low pressure «The longer cross-son dimension of the housing 55 is of course selected so that it is smaller than the diameter of a cigarette to be tested, and the position of the diaphragm in the housing is selected so that air outlet openings are created whose cross-sectional area ratio is suitable for a corresponding scanning sensitivity with regard to the volume of air released from chamber 57 *

. 11 shows a nozzle construction which is essentially similar to that shown in FIG. 4 with the difference that the flow path 2t of the latter in the construction of FIG. 11 is formed by a central hollow tube 60 which extends through a hollow closed housing 61, which is hermetically sealed with respect to the pipe and is connected to the conduit by a suitable opening 62. The annular flow path 22 of the construction of FIG. 4 is formed in the arrangement of FIG Surrounding tube as shown and which are in communication with the interior of the housing 61 for taking air at low pressure through line 26. The pipe 60 and the pipes 63

0 0 9 8 8 6/0713 BAD

~ 24 -

are maintained at their exit ends in some suitable way, like Z ₀ B, by soldering or brazing

In the dotted construction of FIG. 12, the road flow path is formed by "a hollow tube 65" which is preferably an inwardly tapering stem 66 has, and the Fühlkaraner is through a hollow tube educated. You send out the pipes 65 and 67 are close to each other as shown, and the pipes are through a support 68 held so that the pipe axes a acute angle to each other and to the axis of the test ends Form a cigarette as shown in Fig. 12.

The characteristic operation of each of the nozzle structures of Figures 10 through 12 is essentially as follows same as that of the nozzle of Fig. 4 and therefore need not be described further.

009886/0713 BATH

Claims (1)

Patent claims 1. A process for specimen of the density of an opposite de »flow of a medium resistant surface on a workpiece or for measuring a dimension of such a surface or the distance between a base part and such a surface, characterized in that an air jet from a nozzle against the surface and measure the air pressure at a point near the opening to get a measure of the desired measurement » 2, method according to claim 1, characterized ze ichnet that the pressure measurement current within the nozzle in the air approaching the DUsenöffnung "is performed ο ο Method according to claim 1 or 2, characterized in that the surface is the end of a cigarette, and that the pressure measurement is used to determine the usefulness of the manufacturing quality of the band of said cigarette ₀ 009886/0713 4. The method according to claim 3 »characterized in that the air jet is perpendicular to the The cigarette stall is run » ο Method according to claim 3, characterized in that » that the cigarette in a groove of semi-cylindricalsr Surface that corresponds to the cigarette is held, and that the air jet towards the end of the Cigarette is guided along a straight line that runs down the floor the ITut cuts. a method according to any one of claims 3 to 5 * thereby characterized in that at least one pair of air jets against one end of a cigarette to be tested is guided, the beams of each of the said pairs flowing at different speeds and where the air pressure is measured in the slower jet of each pair » 7. Method according to claim 6, characterized in that the air jets of each pair run concentrically to one another, and that the inner of said concentric currents with a pressure of approximately 0.35 to 0.70 atmospheres and the .outer of the con- approx. pressure of
aentric currents with / approximately 0.035 atm. BATH ORIGINAL 009886/0713 ~ 27 - 8. Device for carrying out the peat ahrens naoh claim 1 « which a TrSger (f) for a workpiece (5) old one to be measured »for a flowing medium resistant Surface, test pot facilities (4) in the Haohbarschaft of the carrier (1) and devices (5) for the supply of Gas under pressure to the above-mentioned test head devices (4) characterized by a nozzle (?) on the test head (4), which opens to the workpiece (3) on said carrier (1) in order to direct a gas jet against said surface, and by a device (9) » which responds to a gas pressure in said nozzle and works in such a way that it gives a measure of the desired measurement. 9. Apparatus according to claim 8, characterized in that »that the carrier has a binary direction (1), which defines a path of movement for cigarettes to be tested, the test head device (4) in the vicinity of at least one end of the cigarettes (3) on said Path lies »and a device that responds to pressure (9) which is faulty with a device for ejecting, sticky cigarettes from the aforementioned path connected / and which is further characterized in that at least one Nozzle (7) in said probe unit (4) its opening ^009886/0713 ■ "" ometNM- · »28 - directed against the adjacent end of cigarettes (3) on the said Vieg »being a device (5) for the Leading a gas current into each of the mentioned DUs (7) and then out of the open end of the nozzle and against the Adjacent cigarette ends are provided and a device (9) is present which reacts to a gas pressure in each of said nozzles (7) responds and operates said ejection device whenever the pressure deviates from the predetermined path which corresponds to that is produced by a cigarette usable manufactured goods. 10. The device according to claim 8, characterized in that at least one pair of non-communicating flow paths (21, 22) in each of the named s. There are nozzles (20) which direct the open flow path ends towards the adjacent land of the cigarette, said gas flow guiding means comprising means (24, 26) for supplying gas to guide said flow paths (21, 22) at different pressures, and wherein said gas pressure responsive device (9) to the pressure in at least one of the flow paths (21, 22) in at least one of the addresses mentioned flow path pairs «, 009886/0713 ~ 29 - ο Device according to claim .10, dad u raw characterized that the flow path pairs (57 »58) one each Düae arranged side-by-side β loaded, to direct a gas flow from their open ends on approximately parallel paths to the neighboring cigarette end » 12 »Device according to claim 11, characterized in that one of the flow paths through a central hollow tube (60) is formed and the other of the flow paths is formed by a group of hollow tubes (65) which surround and hiereu the central tube (60) have parallel axes, the guest room guidance device having a device (24 *. 26) to (Jas dem supply central tube (60) with one pressure and gas to the group of tubes (65) with another pressure 13. The apparatus according to claim 10, characterized in that the pairs of flow paths one each nozzle through its elongated hollow tube (65 # 67) are formed with their axes firmly attached to each other ~ and are ordered and at an acute angle to each other / to Form the axis of the cigarette »which is led opposite the open ends of the same · 009886/0713 14 «The method according to claim 10, characterized in that said pair of flow paths through an inner flow path (21) and an outer flow path (22) concentric with the inner flow path is formed, and that the gas flow guide device (24, 26) Gas supplies the inner flow path (21) with a significantly higher pressure than the outer flow path (22) 15o device according to claim 14, characterized in that the outer flow path (22) is a has a circular cross-section and its largest diameter at the nozzle tip is smaller than the diameter of a Is cigarette, and that the inner flow path (21) has a circular cross-section and at the nozzle tip has a diameter of about 0.8 to about 4.3 ms. 16. Device according to one of Claims 10 to 15, characterized in that said gas flow guide device loads gas to one of said flow paths of said pair at a pressure Sm . rich from 0.35 to 0.7 atü and leads to the other flow path of the pair mentioned with a pressure of about 0 _v 035 atü. BAO 0 0 9886/0713 17. The device according to claim 16, dadur oh geke η η seich.net that the nozzle from the adjacent end of the cigarette has a distance of approximately 0.8 ram to 6.55 πω ₀ 18. The device according to claim 9r, characterized that the airflow from each nozzle hits the adjacent end of the cigarette essentially perpendicular ", 19 «Device according to claim 9», characterized in that that the device defining the path of movement includes a rotating drum with hats (1a) has its outer surface for receiving cigarettes, and that each nozzle (7) is directed such that its air flow is deflected radially inward to the Trosmiel (1) by the adjacent end of the cigarette. 20. Device according to one of claims 9 to 19 · thereby gekennze ichnet that the device defining the path is a rotating drum with hats (1a) in it outer surface has »each hat for the reception is adapted to a cigarette to be tested, the test head device (4) also having a pair of test heads, one adjacent to each drum end, each probe also being adapted to have all of the cigarette ends at one end 009886/0713 BATH the drum, the circumference of the drum (1) between the grooves also serving to block the flow of gas from the nozzles in the test heads and thereby generate a pressure reading that corresponds to that indicated by a cigarette with a usable end; and finally the device (9) responsive to the pressure on both test heads (4) operates the ejection device, so that a cigarette is ejected if one of the ends has an insufficient manufacturing quality ₀ 21. Device according to one of claims 9 to 20, characterized characterized in that it comprises means which the pressure responsive means with the Nozzle connects, the connecting device having a calibrated intermittently opening valve (41), which with is synchronized with the movement of the cigarettes and only opens when a cigarette is guided past the test head (4) willo 009886/0713 ^BAD