CA1125080A - Daylight unloading system for microfiche cassettes - Google Patents

Daylight unloading system for microfiche cassettes

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Publication number
CA1125080A
CA1125080A CA326,439A CA326439A CA1125080A CA 1125080 A CA1125080 A CA 1125080A CA 326439 A CA326439 A CA 326439A CA 1125080 A CA1125080 A CA 1125080A
Authority
CA
Canada
Prior art keywords
microfiche
cassette
housing
cover
unloader according
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
Application number
CA326,439A
Other languages
French (fr)
Inventor
Lucien P. Van Der Vliet
Leo N. Vackier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Agfa Gevaert NV filed Critical Agfa Gevaert NV
Priority to CA326,439A priority Critical patent/CA1125080A/en
Application granted granted Critical
Publication of CA1125080A publication Critical patent/CA1125080A/en
Expired legal-status Critical Current

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Abstract

Abstract Daylight unloading system for microfiche cassettes.
A device (40) for unloading microfiche cassettes (10) in daylight conditions comprises a housing (41) into which the microfiche cassette (10) is introduced and which is light-tightly closed by means of a door (42). The exit of the housing (41) is coupled with the inlet of a processing apparatus (50) in which the microfiche undergoes its chemical treatment.
The unlocking of the microfiche cassette (10) occurs by disengagement of the locks (19,20) under the influence of tapered portions from the openings (23,24) in the bottom of the microfiche cassette 10 (34,35). Opening of the cassette (10) is carried out by exerting a down-wardly directed force upon the rearwardly protruding portion of screen (13). Due to the inclined position of the opened microfiche cassette (10), the microfiche contained in the latter slides towards the entry rollers of the processing apparatus (50).

Description

5C3~

Da~ligh-t unloadin~ s~stem for microfiche cassettes.
~ he present invention is concerned with microfiche systems. More particularly, it is concerned with a system by means of which exposed microfiches contained in a cas-sette may be unloaded from the cassette and fed into amicrofiche processor installed in an illuminated room.
In contradistlnction to microfilms which are provided on a so-called dayligh-t reel, microfiches are in the form of a sheet film having the dimensions approximating those of a post card. A plurality of said shee-t films are packed together and in order to bring~one of said sheets into a microfiche camera, ins-talled in a well lit room, it has -to be put into an appropriate cassette which screens-~ff ~he ambient light during the transfer from the loading s-tation (normally a dark room) to the place where exposures are carried out and vice versa.
In order to dispense with the use of a dark room, which in the microfiche field is only part-time used, systems have been devised for loading and unloading a microfiche cassette in well lit conditions.
Such a loading/unloading device i5 disclosed in the German Patent Application No. 29544,818 filed Oc~tober 3, 1975 by A.Jacknau. ~his disclosure deals with a table top model loading/unloading device in which three compartments are provided, namely one compartment for storing unexposed GV.1024 ~ ;

, ~5~

microfiche film sheets~ one for the storage of exposed microfiche film sheets and one in or on which the micro-f`iche cassette may be located. ~he interior can be reached by hand via a light impervious, loosely hanging tube which is tapered and via which an operator may carry out manipulations such as unloading a cassette, taking an unexposed microfiche sheet from a stack of such sheets and putting it into the cassette. ~he la-tter is taken out of the device and is suited for a subse~uen-t exposure cycle.
It will be clear that -this way of handling micro-fiche sheets requires a considerable amount of skill and attention from the part of the operator and that -the chance of making mistakes is not excluded. It is therefore an object of the invention to provide a device for separately unloading microfiche cassettes so that the chance for intermixing unexposed and exposed microfiches is avoided. Moreover, the invention provides for a device for automatically unloading microfiche casset-tes in day-light conditions. In what follows, a microfiche casse-tte unit, the description of which follows hereinaf-ter~ will be called "a microfiche casset-te unit of the tape referred to".
According to the invention, there is provided :
a device for automatically unloading a microfiche cassette unit of the type referred to-comprising :
- a housing capable of being light tightly closed and having an opening via which a locked microfiche unit may be introduced into the device 3 - means within said housing for supporting the side edges of said microfiche cassette unit with its cover member in downward direction - means within said housing for engaging the locking/
unlocking mechanism of said microfiche cassette unit GV.1024 , ~, :

~2S~

when the latter is introduced into said housing, and - means to exert a downwardly directed force upon the pro-truding trailing edge portion of said microfiche cassette unit so that the latter is hinged open and the microfiche contained therein is released.
~ he microfiche which is released may be taken up by means of sucker-cups or other devices known in the art.
Most conveniently, however, the housing is mounted in in-clined direction so that the microfiche may fall out of the casset-te under -the influence of the force of gravity.
Preferably, the angle of inclination amounts to at least 15 degrees.
In order -to open a microfiche cassette unit of -the type referred to after unlocking use may be had of a wedge which contacts the protruding trailing edge of said unit and which is subse~uently pushed in forward direction so that the trailing edge is hinged downwardly.
~ he unloader according to the invention preferably light-tightly is coupled with a processing apparatus for processing the released microfiche.
In order to provide for a reproducible feeding of the microfiche, the latter is caught between a pair of trans-porting rollers mounted at the entry-side of the pro-cessing apparatus and rotating at a predetermined constant speed.
~he scope and spirit of the invention will become clear at -the hand of a description of a preferred embodiment and in the light of following figures in which : ~
fig. 1 shows a microfiche casse-tte unit of -the type referred to, fig. 2 shows the general set-up of the unloader coupled to a processing apparatus, fig. 3 shows the unloader of fig. 2 with the cover removed, and GV.1024 ~25~

fig. 4 shows the feeding of a microfiche into a processing apparatus.
Illustrated in fig. 1 is a microfiche cassette uni-t 10 of the type referred to, used in combination with the micro~iche cassette unloading device according -to the invention. ~he microfiche cassette unit 10 forms no part of the invention but serves only -the purpose of be-tter illustrating the building-up and the working principle of the unloader according -to the invention.
~he microfiche cassette unit 10 is composed of a cover 11, a bottom 12 and a screen 13. ~he cover and the bot-tom are hingedly connected to each other by means of a pair of hinges 14 and 15. In the bottom 12 an opening 16 is provided having the approximate dimensions of a micro-fiche 17 (only a part of the latter being shown by an hatched area)O Microfiche 17 rests with its edges in groove 18 provided in bottom 12 along -the whole periphery of opening 16. When in hinged (or closed) condition, cover 11 is substantially coincident with the bottom surface defined by the opening 16 and groove 18.
~ he cover 11 and the bottom 12 are locked together by means of spring-biased locks 19 and 20 whose pro-truding portions 21 respectively 22 mate with corresponding openings 23 and 24 in the bottom 12, which openings are provided in members 25 respectively 26, fixedly secured to the bottom 12.
In order to protect the microfiche 17 from exposure to ambient light (when the bottom s-truc-ture is open) a supplementary screen 13 is provided during the transport from the loading station to the exposure s-tatlon (a microfiche camera no-t shown) and again from the exposure station to the unloading station. ~he screen 13 is provided on its side edges with guides 27 and 28 in which the side edges 29-30 of the bottom 12 may freely move.
GV.1024 ';

.

~ ~.2 -- 5 ~
An abutment member 39 is provided at the trailing edge o~
the screen 13 so -that the set, formed by cover 11 and the bottom 12, is allowed to perform a sliding movement into and out of the screen 13. Once in the camera (not shown) the screen 13 is removed from the rest of the microfiche cassette unit 10 so that the microfiche 17 contained therein may be exposed.
~ lor the purpose of facilitating a reproducible posi-tioning of the microfiche cassette unit 10 in the camera (not shown) the screen 13 is also provided with profiles 31 and 32 at its leading edge which mate with and are arrested by corresponding profiles at the camera wherein-after the bottom 12 and cover 11 may be slid into the camera which becomes ready ~or exposureO
After exposure, the reverse action ta~es place, in -that, after positioning the screen 13, the set formed by the cover 11 and the bottom 12, but now containing an exposed microfiche 17, is again withdrawn from the camera, caught by the screen 13 and consequently transported to an unloading station in a light-tight position. With the un-loading statioh may be associa-ted intermediate storage facilities or a microfiche processing apparatus.
In order to unlock a microfiche cassette unit 10, des-cribed above, use may be made of a member 33 having a recess provided with tapered posi-tions 34 or 35 which are capable to gradually exert a force on protruding portions 36 respectively 37 of spring-biased locks 19 and 20 so that portions 21 respectively 22 are withdrawn from their mating relationship with openings 23 respectivel~ 24 in bottom 12.
~ ig. 2 shows a general set up of an unloader 40 according to the invention coupled to a microfiche pro-cessing apparatus 50. The unloader 40 comprises a housi~g 41 having a door 42 hingedly connected to it and via which GV.1024 ~L~2~$;~

a microfiche cassette unit 10 of the type referred to may be introduced in-to the housing 41. The door 42 and the housing 41 form a light--tight unit which b~ means of an adapter piece 43 may be linked to the processing apparatu~
50. It will be clear that the linking of the elements referred -to has also to occur in a light-tigh-t posi-tion.
The processing apparatus 50 is of the type known in the art as a table top model. As here illustrated, it comprises four processing stations indicated by i-ts reple-nishing components in the form of inver-ted supply bottles 51, 529 53 and 54 each of which forms part of a so-called chicken feed replenishing system. The processing station corresponding with bottle 51 is a developing station~ the one corresponding with bottle 53 is a fixing station.
~ottle 52 contains a stop bath for the purpose of suddenly stopping development and, finally, a rinsing station is provided for washing out the chemicals involved in the preceding steps. So bottle 54 contains water. The pro-cessing apparatus also shows an exit slot 55 via which the processed microfiche emerges after its processing.
The apparatus 50 incorporates the necessary components for controlling the processing cycle, but these have not been illustrated as they are sufficiently known in the art and form no part of the invention.
Apart from the hinging motion, the door 42 is also capable to perform small displacements according to the arrow 44 for reasons which will be further explained.
In fig. 3 is shown part of the same set-up as illus-trated in the preceding figure, but with the door 42 of the microfiche cassette unloader unit 40 removed.
In the housing 41 are provided two laterally extending guide members 45 and 46 upon which a microfiche cassette unit may be positioned and slid in downward direction.
GV.1024 ~5~

In order -to provide for a reproducible posi-tioning, guide member 46 has a convergent part 47 so that a cassette (not shown) which is not in correct position when at the entry-side, becomes gradually sandwiched between guides 45 and 46 after that it has passed the convergen-t part 47 and consequen-tl~ is aligned.
At a given moment the leading edge of the microfiche cassette unit reaches element 33 which, as already ex-plained in relation with fig. 1, causes the unlocking of the cover by the fact -that the protruding portions 36, 37 of the spring-biased locks 19, 20 contact the tapered portions 34, 35 of member 33 which cause the disengagement of portions 21~ 22 from their mating relationship with openings 23, 24 in the bottom 12 (see fig. 1).
~he downward sliding of the microfiche cassette unit is arrested by the fact that the forefron-t edge of the cover contacts the edge 38 in element 33 (see again fig.1).
A-t that moment, the door 42 of the unloader is closed. ~or clarity's sake, only the rear part of the door is shown. ~he door 42 has a knob 48 which is taken hold of by the operator during closing of the microfiche casse-tte unit unloader (fig. 4). When pushing on the knob 48, the door 42 and wedge element 49 are forced -to move downwardly. ~his causes the rearwardly protruding edge portion of screen 13, which holds the bottom 12 of the microfiche cassette 10 (see fig. 1) to perform a hinging movement around the cassette hinges so that the microfiche cassette is opened in that the part of the bottom 12 and the screen 13 Iying between the hinges 14 and 15 and the processing apparatus 50 are tilted in upward direc-tion whereas the cover 11 remains in its position it had at the moment of introduction of the whole unit into -the unloader. Due to the inclined position (at leas-t at an angle of 15 degrees with the GV.1024 ~ 8 -horizontal) the film 17 slides ou-t of the casse-tte and is gripped by the input roller pair 56, 57 oE the processing apparatus 50 and processed.
It will be clear that instead of a wedge 49 o-ther de-vices (such as an eccentric, etc.) may be used in orderto provide the downwardly directed force for opening the casse-tte.
~ or the case that the microfiche cassette unit is introduced into and positioned in the unloader in a horizontal position, other means than a -transport roller pair, sueh as a sueker-eup may be used for feeding the released mierofiche into the processing apparatus.

GV.1024

Claims (9)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE PROPERTY OR
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A device for automatically unloading a microfiche cassette unit of the type having a bottom into which the microfiche film is placed, a cover hingedly connected to said bottom adjacent one end of the same for opening to permit introduction and removal of the microfiche film, the hinged end of said bottom at least partially projecting outwardly from the hinge axis, and dis-engageable latching means at the opposite ends of said bottom and cover for latching the same together when the cover is in closed position, which device comprises:
a housing capable of being light-tightly closed and having an opening via which a locked microfiche cassette unit may be introduced with the latched end in leading relation, means within said housing for supporting the side edges of said cassette unit with said cover facing downward, means within said housing for disengaging said latching means of said microfiche cassette unit when the latter is introduced into said housing, and means operable within said housing to exert a downwardly directed force upon the outwardly projecting end portion of the cassette bottom opposite said latched end to positively pivot said bottom about said hinge axis relative to the cover and open the leading end of said cassette for release of said micro-fiche film.
2. An unloader according to claim 1, in which said housing is mounted in inclined position.
3. An unloader according to claim 2, in which the angle of inclination is sufficiently high to enable the microfiche to slide out of the microfiche cassette unit under the force of gravity.
4. An unloader according to claim 3, in which the angle of inclin-ation amounts to at least 15 degrees.
5. An unloader according to claim 1, in which said means for exerting a downwardly directed force upon the projecting bottom end portion is in the form of a wedge contacting said projecting end portion and which is displaceable in the direction of the leading hinged end to cam said projecting end portion downwardly and the opposite end of said bottom upwardly with respect to said cover.
6. An unloader according to claim 5, which in addition comprises feeding means to forward the released microfiche towards a processing station.
7. An unloader according to claim 1, which in addition comprises a transport roller pair to forward the released microfiche towards a processing station.
8. An unloader according to claim 6, in which said means are in the form of a transport roller pair.
9. An unloader according to claim 6, where said housing includes a door to close said opening, said door being displaceable parallel to the cassette when supported within said housing and said wedge is carried by said door.
CA326,439A 1979-04-26 1979-04-26 Daylight unloading system for microfiche cassettes Expired CA1125080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA326,439A CA1125080A (en) 1979-04-26 1979-04-26 Daylight unloading system for microfiche cassettes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA326,439A CA1125080A (en) 1979-04-26 1979-04-26 Daylight unloading system for microfiche cassettes

Publications (1)

Publication Number Publication Date
CA1125080A true CA1125080A (en) 1982-06-08

Family

ID=4114069

Family Applications (1)

Application Number Title Priority Date Filing Date
CA326,439A Expired CA1125080A (en) 1979-04-26 1979-04-26 Daylight unloading system for microfiche cassettes

Country Status (1)

Country Link
CA (1) CA1125080A (en)

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