US1569575A - Record tray or container - Google Patents

Description

Jam 12 1926, 31,569,575

J. H. RAND JR, ET AL RECORD TRAY OR CONTAINER Filed Feb. 2, 1924 2 Sheets-Sheet l Jan 112 9 1926., 15%29575 .J. H. RAND, JR, ET AL RECORD TRAY OR CONTAINER Filed Feb. 2. 1924 2 Sheets-Sheet 2 32 5f 5/ 3 3a 2 c 32 rid wall.

Patented Jan. 12, 1926.

JAMES H. RAND, JR, or TONAWANDA,

' YORK;

SAID 'BROECK'ER ASSIGNOB,

AND LOUIS C. BROECKER, Oi BUFFALO, NEW

TO SAID RAND, JR.

RECORD TRAY OB CONTAINER. I

Application filed February 2, 1924. Serial No; 690,233.

To all 'wlao mv it may concern.

. Be it known that we, James H. RAND, J12, and LOUIS C. BnoEc-Knn, citizens of the .United States, residing at Tonawanda and Buffalo, respectively, in the county of Erie and State ofNew York, have invented a new and useful Improvement in Record Trays or Containers,-of which the following is a specification.

This invention relates to improvements in trays, slides or devices adapted to support or contain index cards, card-holders or other record-bearing matter. Moretparticua larly the invention relates to devices ofthis character which are formed of sheet metal. The cards or card-holders are sometimes provided with flaps or tongues whereby an edge of one card or holder may be inserted beneath the flap or tongue of an adjacent 29 ,card or holder to maintain them in overlapping, nested-arrangement with their free edges exposed or projecting one beyond another. Some of the trays or supports have here tofore. been provided having a back or bottom part on which the record-bearing cards or matter are adapted to rest, and side flanges or parts adaplcilto engage ears or side portions on the cards for retaining 30 them intheir overlapping, nested arrangement and permitting sliding movement thereof on the tray, while preventing their transverse movement or displacement; Followers or members are also used which are adapted to engage one or-more of the cards or holders for holding them in roper position and nested relation longitu inally of the tray. These followers are usually arranged adjacent one end, for instance the 49 front end, of the tray,,an(l are a-da'ted to compress the nested cards so that tiey are forced towards the opposite or rear end 0 the tray, the last card or card-holder at such end being in engagement with a art of the tray such. for example, as the xed In some cases out or flanged to overhang the end of the last card, to prevent this edge from buckling to an extent. which would cause the parts 9 of the card or holder to become detached from engagement with the side flanges of the tray, and also to prevent unintentional or unauthorized removal of the cards, while in operative position. This arrangement,

however, is objectionable for the reason that plates,

this end wall is the sharp bent-over edge of the back wall tends to crease or damage adjacent cards when such cards are swung to exhibit their under faces. v 4

Trays or supports of this sort have also been provided with 1 hinged cover plates swinging on relatively fixed pivots or parts at the rear end of the tray and adapted to lie on the upper face of the rear or last card of the series to'cover and protect the exposed record matter thereon. These cover as at present provided, are usually in the form of thin, fiat sheets of metal or other suitable material, and it has been found that, owing to the fact that such plates bear over their'entiresurface on the card or cards therebeneath, a relatively great amount of friction and wear is presout when the cards are raised or lowered in use, due to the relative movements between the cover plate and the cards, resulting in an amount of wear-sufiicient to destroy or deface the record matter and render the card useless. I One of the objects of the present invention-is to provide a tray or support of this character with improvements. includin "'a removable back stop or retaining mem er having a part adapted to overhang and retain the edge or edges of the card or cards at that end of the tray opposite to the. followerto prevent access to or manipulation of suchedges while the follower is m? operative position.

Another object is to provide an improved J cover plate of the sort mentioned, whichlis also adapted to be readily applied to or removed from the tray, and which is con"-' structed so as to assist in maintaining tho-z cards in proper position'in the tray or con- '85 'tainer by itsweight, while nevertheless be be readily moved with or ing adapted to with by the cards when the cards are in use, the minimum of frictional contact.

Still another object is to provide a. com bined removable back stop and cover plate having interengaging parts adapted to maintain said back stop andv cover plate in proper operative position on't-he tray, said parts being adapted to permit the cover 1( plate to move relatively to the back stop member without marring or injuring the finish. thereon and which will reduce the friction between these parts to a minimum.

Another object is to arrange the card- 1 will be distributed through a relatively member to assist ing one of the great number of the superimposed cards and thereby form a secondary compression in maintaining the cards within their intended limits on the tray. Other objects of the invention vare to improve e'ard index trays or devices in the other respects hereinafter claimed.

In the accompanying drawings: Fig. 1 is a plan view of a. card tray or slide provided with the improve-. ments embodied in this invention., Fig. 2 is a longitudinal sectional tion thereof on line 2+2, Fig. 1.

Fig. 3 is a fragmentary side view partly elevain section on an enlarged'scale, showing a cover plate adapted for use with cards of a different size to those shown in Figs. 1 and 2. Fig. 4: is an enlarged transverse section of the tray or slide on line H, Fig. 1, showing the back stop and cover plate.

Fig. a similar view of the'tray on line 5-5, Fig. 6, with the back stop and cover plate removed.

Fig. 6 is a longitudinal section of the rear end of the tray as arranged in a cabinet.

Fig. ing the action ad'acent cards are lifted'to beiieath. v

Fig. 8 is a fragmentary perspective view of a portion of one side of the tray showapertures in which the cover plate'is journalled.

7 is a similar view of thetray, showof the cover plate when the expose the cards Fig. 9 is a similar view of the back stop detached.

In the drawings, a shown which includes, a tion A, side walls B, flanges C spaced side. walls B by or treeedges of the from the back porliouA of the tray so as to'perinit the insertion therebeneath of the tongues or portions D on the cards or holders E, whereby, the cards are maintained in sliding engagement with the tray. The;tray is also provided with a rear wall B- prefer card index tray is bottom or back porably formed of a separate. sheet metal having'a bottom flange 1) stamping and adapting it to be secured, asby spot welding, to the rear, of the back or bottom'A of the tray. 'Th trays are usually provided with a hinged'or pivoted tail piece, as at A, adapting the trays when used in a cabinet to be pulled out of the cabinet to ex pose their contents, while the tail piece will engage a part at the front of the cabinet to prevent the disengagement of the tray from the cabinet. The tail piece is preferably between the flange one edge, whereby 'card to-maintain them in specified and or projecting'one beyond another,

. in Figs. I and 2.

index f follower is adapted ers have more or and overhanging from and connected to the a top flange 0. The lower flanges C are spaced lease the card. holders,

'ment is given to the hinged as at a to'lugs (1, extending rearwar'dly beyond the rear wall B ofvtlie tray, the lugs being preferably secured to the tray 1) and the bottom A.

E are prefer-' portions F at The card or card-holders ably provided with flaps or be inserted beneath thefiap of an adjacent overlapping nested arrangement, with their free edges exposed as shown A follower or primary compression memher, see Fig. 2, compris ng a card-engaging plate G and an operating part or stem 9 adapted to engage a fixed part of the tray in engagement with one to hold the part G or more of the cards, is preferably arranged as shown, at the front end of thetray, so that the part G is engaged underthe flap F of thelast card at that end of the tray. The to compress the nested cards and force them towards the opposite end of thevtray or-towards the rear wall B to maintain them in the desired overlapping arrangement. For this purpose the stem g extends o'ut through a hole in the front wall of the tray, and is" provided with a notcl1.g"engageable over'th'e edge of the wall at said opening. The card holdless natural elasticity, and when not engaged by tend to spread apart slightly and therefore occupy more space lengthwise of the tray than when forcibly held in interlocking, nested position. The distance between the card holder engaging edge-of theplate G' and the notchin'the stem 9 is such that considerable pressure must be applied against the end of the stem to compress the card holders towards the rearwall of the tray before the notch can be engaged with the'tray wall. After this is done, the stem will be maintained in locking engagement withthe tray by'the outward pressure or resistanceolfered hy'thc holders,- To rean upward moveouter end of the-stem to release the notch from the front wall, whereupon the cards will separate slightly and force the follower ortwardly until the.

holders assume their loose or released position.

A'follower or member of any other form, adapted to the purpose st ated, may be used. The tray, as above described, is of known form, and of'itself forms-no part of the present invention. Any other trayof suitable form maybe used.

The invention contemplates'the provi& sion of a back stop or member preferably arranged at the rear of the tray against which the rearmost of the series of cards, compressed by the follower G, may abut, said back stop being releasably maintained on the trayand having a part adapted to the follower plate G,

an edge of one card may tom A of the tray.

sis

free edge of the ers.

The back stop shown in the drawings comprises a member 20 having a-top plate or portion 21 a depending rear flange or part 22 and an integral rearwardly directed,

substantially V-shaped recessed part 23 ex- I tending from and beneath the front edge of the plate 21. The back stop is arranged transversely on the tray between the flanges C, with the recess 23 disposed so as to' re-. ceive the back edge of the rear card, which will be forced snugly into the bottom thereof by the pressure ofthe follower G. The upper portion of the part 23 thus overhangs the edge of the card and prevents the re- -inoval of thisand' adjacent cards while they are in operative position, and at the same time presents no abruptor sharp edge to wear the card or holders. Means are provided for releasably maintaining the back stop 20 in operative-position. on the tray. In the drawings, the back stop is positioned 'with its rear depending flange'22 abutting wall Bf-of the tray, the flange preferably being in engagement with the bottom flange b of the wall, while the lower edge 24 of the recessed part 23 engages one or more fixed lugs or parts 25 extending upwardly from the bot- These lugs 25 prevent movement of the back stop away from the rear wall B, while nevertheless permitting the ready insertion and removal thereof against the rear from the tray, whichinay be accomplished by grasping the back stop atthe front of the upper plate portion 21 and tilting the back stop so as to disengage the edge 24 from the lugs 25. Any other suitable means may be provided for releasably holding the back stop in contact with the back wall of the tray.

As shown in Fig. 2 of the drawings, the body portions of the cards or holders E,

in their nested and overlapping position,

form a relatively thick pack, the upper face the free edges of the cards, is adjacent the plane of the tops 0 of the side walls B of the tray,.while the face of the rear card is exposed. Some of these cards, in use, become slightly buckled or warped and tend to increase the thickness of the pack to an extent sufficient to cause the top face of the pack or portion thereof to extend above the top of the side walls, and when the tray is used in a cabinet and otherwise, this increased thickness is very undesirable, as the cards would rub against the partitions or other parts of the cabinet with resultant wear and defacement. To eliminate thisfiand to prevent wear andv defacement of the record matter on the exposed rear card, a top plate or member is provided having improved means for securmg it on the tray-and for maintaining the thickness of the pack of cards and holding them compressed within the desired limits, and protecting the record matter, on the rear card while nevertheless being adapted toswing freely on the tray to permit the cards to be manipulated, as desired.

The cover plate, which also serves tocompress the cards or holders, is preferably constructed and mounted as shown in the drawin'gs and comprises 30 ofapproximately the size of the card or holder used in the tray and adapted to 6X- tend over and conceal the record matter on the rear card, leaving only the free edge of this card exposed.

a plate or body portion The back edge of the plate 30 is preferably bent or.rolled to form journal portion 31, the

a tubular bearing or opposite ends of which extend beyond the side edges of the plate 30 and form bearing pintles or journals 32. The cardengaging flanges C are recessed as shown at for the reception of the ournals 32 which are adapted to seat inthe closed ends of the recesses, these being positioned so as to permit the cover plate to lie substantially parallel withand slightly below the top edges of the tray, see Fig. 2. The cover plate journals are conveniently maintaine in operative position in the recesses by any suitable means, but preferably, as in the construction shown, by a part or parts of the back stop 20. The cover plate may be inserted in the tray by extending the bearing portion 31 diagonally across the tray so as to bring the pintles 32 beneath the flan es C, after whichthe plate may be straightened to bring the pintles into register with the recesses 33. The back stop is then slipped into position beneath the-bearing portion 31, thus forcing tliepintles 32 into the inner ends of'the recesses. The top flange .21 of the back stop is'pi'eferablyformed the case if the ournal port-ion contacted throughout itslength with the backstop. The described location of the cover plate journal also materially assists in maintain ing the back stop in posit-ion on the tray as no upward movement thereof is possible owing to, the engagement of the pintles 32 with the inner ends of the recesses 33, nevertheless the back stop and cover plate are easily inserted or removed as desired.

There is thus provided a combined detachis not marred, as would be from the tray, when positively able back stop' and cover plate, which are readily applied to or removed desired but which are maintained in operative position without danger of becoming accidentally detached or displaced when the tray is in use. I

The cover plate 30 is formed with a part,

preferablyhi the shape ofa transverse bead or depression 36 adjacent its free edge, as shown, which bead is adaptedv to contact with the outer end ofthe last card at a point such that the weight of the-plate is distrib uted through the pack of-cards to hold them compressed within the desired limits, at the same time the bead forms an antifrictional contact with the card to prevent the body of the cover plate fromengaging and rubbing the surface of the card and defacing the recordmatter thereon.

The cards may be readily lifted, as shown in Fig.- 7 the bead 36 sliding freely on the card with the minimum of friction. To facilitate lifting the cover plate to permit an examination of the date on the card beneath, the free edge of the cover plate is inclined as at 37 so that it is out of contact with the edges of adjacent cards thereby allowing its ready manipulation.

If desired, the top edge of the back wall of the tray may be flanged as shown at 38 to form a rest moved to the position in Fig. 7 so that-therear faces of the cards may be viewed'and entries made thereon,

if desired.

readily interchangeable.

The described construction of the cover plate makes it possible'to adapt these plates to cards of varying lengths, as shown in full and dotted lines in Fig. 3, as cover plates are \Vhere it is desired to insert cards of greater or less length on a given tray, a cover plate corresponding in-length to the length of card used is selected, thus providing adequate protectionfor the record matter on the exposed last card, regardless of the size of card used.

We claim as our invention 1. In a record device adapted to support a series of record-bearing members in predetermined arrangement, the combination of a part providing a support for said recordbearing members, means for engaging one end of said series of'record-bearing members for limiting movement of saidrtzord-bearing members in one direction on said support, said means being removably mounted on said support, and movable means for applying pressure to the .oppositeend of said series of record-bearing members.

2. A record device having a part for supportigng1 a series of record-bearing members in pre etermined overlapping relation substantially parallel with said supporting part,

both of .part providing a for the cover plate when, shown in-broken lines means for engaging one end of said series of record-bearing members for limiting movement of said record-bearing members in one direction on said support,'said means being removably mounted on said support, and movable means for applying pressure to the opposite end of said series of record-' bearing members. I

3. In a record device adapted to support a series of record-bearing members in predetermined arrangement, the combination of a support for said recordbearing members, means for engaging one end of said series of record-bearing members for limiting movement of said record-bearingmembers in one direction on said support, said means being removably mounted on said support and having apart adapted to overhang a portion of one of said record- -receiving members whereby said recordreceiving member is maintained against unintentional removal from said supporting I part, and movable means for applying pressure to the opposite end of said series of record-bearing members.

' 4. In a record device, a record-supporting part for maintaining a series of recordreceiving members in predetermined arrangement substantially parallel to said supporting part, a stop member for engaging one 0 said record-receiving members to limit movement of said record-receiving members in one direction on said supporting part, a plate member adapted to cover-the record-receivin portion of said recordreceiving mem er, said stop memberfiand said plate member being detachably -mounted on said support, and means for applying pressure to said series of record-receiving members to hold said record-receiving members against said stop member.

5. In a device of the character described,

means for supporting a plurality of recordreceiving members in predetermined overlapping relation, and a metal guard plate for covering the record-receiving portionof the uppermost of said record-receiving mem bers, and said guard plate on said device.

6. In a record device adapted to support a series'of record-bearing members in predetermined arrangement, the con'lbination of a part providing a bearing members, 1neans for engaging one end of said series of record-bearin g members for limiting movement of said record-bear ing members in-one direction on said support, said means being removably mounted on said support and having a part into which a portion of one of said record-receiving members may enter, and movable means for compressing said series of record-receiving members, whereby said record-receiving member is held against said part on said removably mounted means, so that said recmeans for detachably mounting support for said recordweaere ord-receiving member is maintained against unintentional removal from said supporting part.- p

7. ln a record device adapted to support a series of record-bearing members in predetermined arrangement, the combination of a part providing a support for said record-bearing members, means for engaging one end of said series of record-bearing members for limiting movement of said record-bearing members in one direction on said support, said means being removably mounted on said support, movable means for applying pressure to the opposite end of said series of record-bearing members, and means on said support for en aging said removably mounted means, w ereby said removably mounted means is maintained in operative position on said record,

device.

8. In a record device, a recordsupporting )Hlll for maintaining a series of record-receiving members in predetermined arrangement substantially parallel to said supporting part, a stop member i'or engaging pne of said record-receiving members to: limit movement of said record-receiving members in one direction on said supporting part, a plate member adapted to cover the recordreceiving portion of said record-receiving member, said stop member and said plate member being detachably mounted on said 'support, and means for applying pressure to said series of record-receiving members to hold said record-receiving members againstsaid stop member, said stop mem her having means for engaging said plate member and releasably maintaining said plate member on said supporting part.

5). In a record device, a record-supporting part or maintaining a series of recordreceiving members in predetermined relation substantially parallel to said supporting part, a stop member detachably mounted on said record device for engaging one end of said series'to limit movement thereof inone direction, a movable primary compression member adapted to engage the opposite end of said series to limit the movement thereof in the opposite direction, and a secondary compression member detachably mounted on said record device and having a part adapted to normally engage and compress said series of recordq'eceiving members in a direction substantially perpendicular to the direction of compression of said primary compression member.

1%. In a record device, ng part for maintaining a 'series of record- .reeeiving members in predetermined relation substantially parallel to said supporting part, and having means at opposite sides thereof for limiting movement of said series transversely of said supporting part,

i a stop member detachably mounted on said a record-support- I ord device for normally compressing said series of record-receiving members in a direction substantially perpendicular to said supporting part. 11. In a record device, a record-supporting part for maintaining a series of record- 'receiving members in predetermined relation substantially parallel to said supporting part, and having means at opposite sides thereof for limiting movement of said series transversely of said supporting part, a stop member detachably mounted on said record device, a movable compression member on said record device, said stop member and said compression member being adapted to respectively engage opposite ends of said series of record-receiving members to limit movements of said series in opposite directions longitudinally of said supporting part, and means detachablymounted on 'saidrecord device for normally compressing said series of record-receiving members in a direction substantially perpendicular to said supporting part, and said compression means being adapted to cover and protect the record-receiving portion of one of said record-receiving members.

12. In a record device, a record-support ing part for maintaining a series of recordreeeiving members in predetermined relation substantially parallel to said supporting part, and having means at oppositesi'des thereol" lor limiting movement of said series transversely of said supporting part, a stop niember detachably mounted on said record device, a movable compression member on said record device, said stop member and said compression member being adapted to respectively engage opposite ends of said series of record-receiving members to limit movements of said series in opposite directions longitudinally of said supporting part, and a plate member detachably mounted on said record device adapted to cover and protect the record-receiving portion of one of said record-receiving members, said plate member having a part adapted to engage said series of record-receiving members to resist and limit movements thereof in a direction substantially perpendicular to said supporting part.

13. Ina record device, a record-supportlng part for malntaining a series of recordreceiving members in predetermined arrangement substantially parallel to said supporting part, a stop, member for engaging one of said record-receiving members to a limit movement of said record-receiving members in one direction on said supporting part,, means for applying pressure to said series of record-receiving members to hold said series of record-receiving members against said stop member, and means on said supporting'part for engaging opposite sides of said stop member to prevent movement of said stop member and maintain said stop member in operative position on said record device.

14. In a record device, a record-supporting part for maintaining a series of recordreceiving members in predetermined arrangement substantially parallel to said supporting part, a stopmember for engaging one of said record-receiving members to limit movement of said record-receiving members in one direction on said supporting part, a plate member adapted to cover the record-receiving portion of said record-receiving member, said stop member andsaid plate member being detachably mounted on said support, means for applying pressure to hold against said stop member, means on said to said series of record-receiving members said record-receiving members supporting part and 'on said plate member for engaging said stop member to maintain said member in operative position on said record device.

' 15. In a record device, a record-supporting'part for maintaining a series of recordreceiving members in predetermined ar rangement substantially parallel to said supporting part, a transverse back wall on said supportin part, a stop member for engaging oneoi said record-receiving members to limit ,movement of said record-receiving members in one direction, means for applying pressure in the opposite direction to hold said record-receiving members against said stop member, and means onsaid supporting part for holding said stop member in engagement with said back wall to maintain said member in operative position on said record device. f

16. In a record device, a record-supporting part for maintaining a series of record receiving members in predetermined arrangement substantially parallel to said supporting part, a transverse back wall on said supporting part, a stop member for engaging one of said record-receiving members to limit movement of said record-receiving members in one direction, means for applying pressure in theopposite direction to hold said record-receiving members against said stop member, a plate adapted to cover the record-receiving portion, of one of said record-receiving members, means on said supporting part for holding said stop member 1n engagement with said back wall, and means on said plate member adapted to hold said stop member in ento hold 'gagement with said supporting part whereby said stop member is maintained in operative position on said record device.

17. In a record device,'a record-supporting part for maintaining a series of recordreceiving members in predetermined arrangement substantially parallel to said supporting part, a transverse back wall on said supporting part, a stop member for engaging one of said record-receiving mem-' bers to.limit movement of said record-receiving members in one direction,- means for applying pressure in the opposite direction said record-receiving members against said stop member, a plate member ;adapted to coverthe record-receiving por tion of one of said record-receiving members, said plate member being detachably mounted on'said supporting part, means on said supporting part for holding said i stop member in engagement with said back wall, and means on said plate member adapted to hold said stop member in en'- gagement with said supporting part, whereby said stop member is releasably maintained on said record device.

18. In a record device, a record-supporting part for maintaining a series of recordreceiving members in predetermined over lapping relation, side parts on said supporting parfiadapted to prevent lateral movements of said series on said supporting part, a detachable plate member adapted to cover the record-receiving portion of .one of said members, said side parts of said device having apertures, and said, plate member having pivot partsadapted to enter said apertures to permit swinging movements of said plate member relatively to said record-receiving members, and detachable means on said device'for maintaining said plate member in its pivotal relation to said apertures.

19. In a record device, a record-supporting part for maintaining a series of recordreceiving members in predetermined overlapping relation, side parts on said supporting part adapted to prevent lateral movements of said series on said supporting part, a detachable plate member adapted to cover the record-receiving portion of one ofsaid members, said side parts of said device having apertures, and said plate member having parts adapted to cooperate with said apertures to permit relative movements between said plate member and said recordreceiving members, and detachable means on said record device adapted to engage and removably secure said plate member parts in said relation to said apertures.

20. In a record device, a record-supporting part for maintaining a series of recordreceiving members in predetermined overlapping relation, a detachable plate member adapted to cover the record-receiving portion of one ofsaid record-receiving memmagma bers, said plate member having an attaching part, parts on said record device for receiving said attaching part, and detachable means having a part adapted to engage said plate memberyto maintain said attaching part of said plate in operative relation to said receiving parts on said record device.

21. In a record device, a record-supportingpart for maintaining a series of recordreceiving members in predetermined over lapping relation, a detachable plate member adapted to cover the record-receivingpor tion of one of said record-receiving members, said plate member having an attaching part, parts on said record device for receiving said attaching part, detachable means having a .part adapted to engage said plate member to maintain said attaching part of said plate in operative relation to said receiving parts on said record device, and said detachable means being adapted to engage one of said record-receiving members to prevent movement of said series in one direction and having a part adapted to overhang said record-receiving member to maintain said member against unintentional removal from said supporting part, and means for applying pressure to said series of recordreceiving members to hold said members against said detachable means.

22. In a device of the character described, means for supporting a plurality of recordreceiving members in predetermined overlapping relation, a cover plate adapted to cover the record-receiving portion of the uppermost of said record-receiving members, means for detachably mounting said cover plate on said device, said cover plate being interchangeable with other cover plates of different lengths so that the uppermost record-receiving memberwill always have its -=record-bearing portion properly covered regardless of the length of said member.

23. In a record device, a record-support ing part for maintaining a series of recordreceiving members in predetermined overlapping relation, side parts on said device adapted to prevent lateral movements of said series on said supporting part, a detachable plate member adapted to cover the record-receiving portion of one of said members, said side parts of said device having apertures,

and said plate member having pivot parts adapted to enter said apertures to permit swinging movements of said plate member relatively to said record-receiving members,

relation, said members being adapted to swing to a position wherein their under faces are exposed, side parts on said device adapt-- ed to prevent lateral movements of said series on said supportingpart, a detachable plate member adapted to cover the recordreceiving portion of one of said members, said side parts of said device having apertures, and said plate member having pivot parts adapted to enter said apertures to permit swinging movements of said plate member relative to said record-receiving members, said plate member having a part adapted to slide on one of said record-receiving members to form anti-friction means therebetween when one or more of said recordreceiving members are moved to expose the under face or faces thereof, and detachable means on said device for maintaining said plate member in its pivotal relation to said apertures.

25. III a card index tray adapted to support a plurality of record-bearing members in redetermined recumbent arrangement with the bodies of said record-bearing members substantially parallel with the bottom of said tray, a relatively fixed back stop detachably mounted in said tray and having a part for engaging a portion of one of said recordbearing members and retaining said members in the tray when they are pressed against said back stop, and a movable follower for applying pressure to said recordbearing members to hold them under compression against said back stop.

JAMES H. RAND, JR. LOUIS C. BROEGKER.

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