US1353452A

US1353452A - Metal filing-cabinet

Info

Publication number: US1353452A
Application number: US337831A
Authority: US
Inventors: Chipperfield Walter
Original assignee: Roneo Ltd
Current assignee: Roneo Ltd
Priority date: 1919-11-13
Filing date: 1919-11-13
Publication date: 1920-09-21
Anticipated expiration: 1937-09-21

Description

W. CHIPPERFIELD.

METAL FILING CABINET.

APPLICATION FILED NOV. 13. I919.

Patented Sept. 21, 1920,

W. CHIPPERFIELD.

METAL FILING CABINET.

APPLICATION FILED NOV. 13, 1919.

1 53,452. Patented Sept- 21, 1920.

6 SHEETS-SHEET 2.

J44; f -ii...

W. CHIPPERF|ELD.

METAL FILING CABINET, APPLICATION FILED NOV. 13. I9f9.

Patentd Sept. 21,1920.

14 4 6 SHEETSSHEET 3.

I /1' Y /6 l W i W. CHIPPERFIELD.

METAL FILING CABINET. APPLICATION FILED NOV. 15. 1919.

Patented Sept 21, 1920.

6 SHEETS-SHEET 4 W. CHIPPERFIEtD.

METAL FILING CABINET.

I APPLICATION FILED NOV. 13. 1919- 6 SHEETS-SHEET 5.

I II

W. CHIPPERFIELD.

' METAL FILING CABINET.

APPLICATION FILED NOV. 13, 1919.

' Pat entedSept 21, 1920.

6 SHEETS-SHEET 6.

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Be it known that 'nrn'rsn STA WALTER, cHxrrnnrrn-nn, or HORNOHURCH, ENGLAND, essienon'rro some LiMITED,

or ennon, ENGLAND,

A COMPANY OT GREAT BRITAIN.

, jMn'r n Furnaces river.

fissaasa To ail whomit 'mayconcc m: w

I, WVALTER GI-IIIPEB FIELD, a subject of the King oflGreat Britain, residing at Kinkora, Great Nelmes, 'Hornchurch, in the county of Essex, England, have invented new and useful Improvements in'Metal Filing-Cabinets and'in the Construction of Sliding Drawers Therefor, of which the following is a specification,

The present invention relates to improvements in the construction ofmetalcases for containing shelves, drawers. and the. like,

and further relates to'the construction of 'shdmg or other drawers orv receptacles to' be contained therein. V 7 a In such metal structures some difficulties are experienced in the packing and transport of same from place to place, and'it would therefore be of considerable advantage to provide a satisfactory construction by which the parts composing the structure could be disassembled into convenient sections for package and transport,'and then the parts readily assembled and connected together;'but to carrythis out successfully certain essential conditions have to be pro vided for, as for instance the assembling of the parts of the structure so that it willcomprise a rigid whole, which must be capable of being effected with little-if any mechani cal skill,so that it must not be necessary in so assembling to bend any parts, or to employ screws, bolts or pins, and having been so erected the structure must be rigid and substantial. V '7 The present invention provides constructions by which the above requirements can be efficiently carried out; Q E

A primary feature of this invention consists in means,'as hereafter'described, by which a sheet metal structure can be built up of a plurality of separate sheets connected together substantially edge to edge, and to this endthe edges of the sheets are so formed that they will engage and interlock at the requisite angles to each other, generally at right, angles.

According to this portion of the inven-,

tion the edges of two plates of metal are formed so'that one edge of a first plate composing for instance the back of a' case as first herein stated, is bent over at about right angles to its main surface to form a flange, said flange being formed or pro vided with tongues, or inward projections- Application filed November 13, 1})19. Serial No. 337,831.

, plate.

Specification bf Iletters Patent. Patented Sept, 1920.

such as pins for instance, extending in a plane parallel with the surface-of'the first plate, slots being formed through the niain wall of said first plate; the. second plate is formed with projecting tongueson "its edge to take intosaid slots in :the .main wallof the first plate, such engagement being effected when saidtwo plates are at a proper relative angle. Slots or holes are formed through theawall of the second plate in such positions rthat whensaid second plate is the edge of theflange of the first plate will enter slots or holes inthe wallof the second plate, whereby said. plates will be firmly connected together when maintained at 'a proper relative angle to each other, and can be Wll'ih equal readiness disconnected when such relative angle is changed. Ina preferred constructions'aid first plate ,brought'to the required angle with the first plate, 'sald tongues or inward projections on is bent over at right angles to its main surface to form a flange at about right angles thereto, and the flange is again bent over to form a channel, and the bent over edge forming the edge of the channel is cut away to produce the tongues which extend in a plane parallel withzthe surface of said first In a rectangular structure or casing built according to this invention and adapted to contain say sliding drawers, and where the rearward vertical edges of the sidev plates are connected by tongues entering slots as above stated, the forward vertical edges of the side plates are bent outwardly and cut away to produce tongues and a front frame is provided having slots in its rearward'ly in such a, casing, and to other like struc-- tures It will be observed that no further fixture of-the parts to hold them together is re- 1105 quiredor called for by this invention, and a rigid structure is produced; that is to say, a tongue on the first part merely enters a slot inthe second part and does not extend through and beyond that slot, and a tongue,

on the second part enters a slot in the first part, and none of the tongues extends through and beyond the slots, as has been proposed in connectingsheet' metal structures where tongues on one part have passed through slots in a plate and extended beyond the opposite face of the plate and been "retained in. such plates by pins] passed through the extending tongues.

The invention will be further described .with. reference to the accompanying draw- .ings, whereon Figurel. 1s ahorizontal sec- Figs. 5 to 13 sufliciently show the. invention appliedtothe construction ofa casing for containing sliding drawers, Fig. 5. beingia sectional front elevation, Fig. 6. a sectional side elevation, and Fig; 7. a rear elevation of the upper part of thecasing. Fig. 8. is

.a perspective view, and Fig. 9. is a vertical section on the line A. A.Of Fig. 8. of a front frame. Fig. 10 is ahorizontalsection of the case, Fig. 11 is a horizontal section through one side of the front frame showing the side plate interlocked therewith,

and drawn to a larger scale than Fig. 10,

and Fig. 12 is a front elevation of the front vertical edge of the side plate. F ig. 13 shows a portion of the top of the case in section and a means for securing same.

F ig. 14 is a vertical section of one of the drawers for such a case, shown in vertical section, and Fig. 15' is a sectional plan view of the same.

Referring firstly to Figs. 1 to 4 of the accompanying drawings, one vertical edge of a sheet metal plate 1 of a rectangular case is bent over at right angles to its main surface, and .the flange 2 is further bent at 3 to form a channel; the rear wall ,of' the channel of the back plate 1 is formed with slots 4: at distances apart, see Fig. 3'. and the forward wall of the channel composed of thebent out edge 3: of the metal is cut away at parts so as to produce laterally extending tongues 5, the tongues 5, alternating with the slots 4.

One edge ofthe side plate 6, Fig. 2. is

7 formed with tongues 7 to enter the slots 4 in the rear wall of the channel of the back plate 1, and near the rear edge of the side plate 6 .slots 8 are formed to receive the tongues 5 on the forward wall 3 of the channel of the back plate 1. The tongues 7 of the side plate 6Vcan then be entered into the slots 4; of the back plate 1 when the plane of the side plate 6 is at an angle 6 will. be connected together. without the necessity of bending, screwing or bolting either part.

Moreover the tongues on one plate enter the slots in the other plate as described, but

do not project through and beyond the slots on the opposite side of the respective plates,

or at all events to any appreciable extent,

and it is generally not desirable that the tongues should project beyond the surfaces of the plate in which they are entered; in such a connection between tw'orplates' according to this invention, one plate, such as 6 Figs. lto 4, is bent to form' abead 9 which it has been found improves the appearance of the structure. 7

- The application-of the invention to the construction of a sheet metalcasing for containing sliding drawers will now be described with reference to Figs. 5 to 13 of the drawings. r V I The edges of the back plate 1 are connected to the rear edges of the side plate 6 by the double interlocking tongues and slots described with reference to Figs. 1 to 1.

The forward edge of'each side plate 6, see Figs. 10,11 and 12, is bent outwardly from, the structure at about right angles and cut away at parts to produce tongues 10, Fig. 12, and a front frame 11, see Figs. 8 and 9, is provided of angle section, one flange of the frame 11 extending parallel to the side plate 6, and the said angle flange is slotted at 12 so that by bending the sides 6 toward each other and inserting their edges into the angle frame 11, the tongues 10 on the side plate 6 will enter the slots 12 of the angle frame 11, and thus the structure is connected together composed of a back 1, two sides 6 and a front open frame 11 of angle section. 7

The front angle frame 11, if the case is to contain drawers or be fitted with shelves, has a suitable number of bars 13 also of angle section, fixed horizontally at proper distances apart and extending between the.

vertical members of the front frame,"each horizontal member 13 having its front flange vertical, flush with the front of the front frame, and its horizontal flange proceeding from the lower edge of .the

fitted interiorly in the, case so that its edges 1% against the interior walls and against the front vertical flange of the front'frame,

I bar, horizontal and inwardly directed. I

which may 7 be 1 plates 6 are prevented from leaving the slots 12.- of the front frame-11 into which they have been entered.

Title such a structure as. described horizontal, divisions, or as .they may be termed shelves (not shown), may be. fitted-in; the

structure, said shelves being, made of sheet metal with the edges flanged downwardly, the flanges fitting in surface contact'with the side plates G-andfthe back plate 1 of the structure and withthe upstanding flange of the angle bar 13 of the front frame 11. The side and back flanges of each shelf may be formed with downwardly extending tongues which may be received, when the shelf is in position, in slots formed in indented pockets made in the side and back plates 6 and 1', so'that the shelves themselves also form structures which-serve to augment the rigidity of the case.'

The top 14 of thecase, Fig. 6, is composed of a metal plate having its edges flanged downwardly; the rear edge of the top 14 at 15 Fig. 6,. is connected with the back plate 1 by the double interlocking tongues and slots according tothis invention, the top 14 being applied at an angle to the horizontal so as to cause the interconnection of the tongues with the slots as the top 14 is brought to the horizontal position shown where its front edge rests upon the frame 11. v

This top member is secured in positionby a plate 16, the sides of which are flanged downward and outward as at 17 Fig. 13 so as to take under inwardly and upwardly flanged side plates 6, the plates 16 being therefore inserted from the interior of the case. The plate 16carries lateral bolts 18 which pass through the flange of the plate 16 and through the flanged over tops of the side plates 6.

The drawers may be constructed in'a manner similar to that described for the case; thus by way of ex'ample and as shown at Figs. 14 and 15, the vertical edges of the back plate 19 are united to the rear vertical edges of the side plates 20 by double interlocking tongues and slots as already described, while the forward vertical edges of the side plates 20 are bent outwardly as shown at Fig. 15, so as to enter channels 21 formed in the front plate of the drawer.

The bottom plate of the drawer is similarly connected that is the rear edge of the bottom plate 22 is connected to the lower edge of the back plate 19'at 23 by double interlocking tongues and slots as already described, while forward and lateral downward flanges of the bottom plate 22 enter the lower channel of the front of the drawer, and also enter channels formed in the lower edges of the sides of the drawer, and the ready carriedout. insucb structures. j

drawers and the like; connecting the edges ing devices: to permit the" drawers to slide easily into and. outxof'the'casing as is :al-

I desire to secure'by LetterslPat'ent of: the United States: is as follows:- 1 1 1. In the construction of metal cases,

of two plates of metal employed in such structures at or about right angles to each other, by bending the edge'of the first plate to form a flange at about right angles there-. to, forming or providing said flange with tongues orinward projections extending in a plane parallel with the surface of said first plate, and forming slots through the main wall ofsaid first plate, forming the secondplate with projecting tongues on its edge to take into said slots in the main wall of the first plate, such engagement beingeffected when said two plates are at a proper relative angle, and forming slots or holes through the wall of the second plate in such positions that when said second plate is brought to the required angle with said first plate, said tongues or inward projections on the edge of the flange of the firstplate will enter the slots or holes in the main-wall of the second *plate, whereby the said plates will be firmly connected together when maintained at a proper relative angle to each other and can be with equal readiness disconnected when such relative angle is changed.

i 2. A metalv structure, comprising a back plate having its side edges bent upon themselves to form a channel at each sideof the plate, said plate being provided in one side wall of said channel with a plurality of slots,

the opposite side wall of the channel being cut away to form a plurality of tongues,.and side plates each having one edge cut away to form a plurality of tongues adapted to en- 11 gage the slots atone side of the back plate and having a plurality of slots for engagement with the tongues of said back plate, said back plate being provided with a bead adjacent to the slots thereof. a

3. A metal structure, comprising a back plate, a pair of side plates each connected to said'back plate along one edge thereof, said side plates having a plurality of outwardly extending tongues at the edges .op- 1'25 posite said connection, a front structure provided at each side edge thereof with a flange having a plurality of'slots adapted to receive the tongues of the side plates, and a plate secured between said flanges for re- T7 A 3' Havingthus:described'm. A lnvention what 'taining the tongues in the slots.

4. A metal structure, comprising a back plate, side plates and a front structure secured together at their edges to form a rectangular casing, said side plates belng provided at their. upperedges with inwardly and upwardly extending. flanges, atop plate provided with downwardly and ontwardly extending flanges adaptedto engage the flanges 01": the side plates, and means for securing the fiangesof. the side plates and top I 4 and provided with a top member connected at its front and rear edges with the casing 15 and having at its side edges downwardlyand Intestimony whereof I have signed my name to this'specification in the presence of 20 twosubscribing witnesses v V V I f WALTER CHIP'PERF IE LD;

Witnesses: I

RICHARD C; ROGERS, J. 'W. PATOHING.