US2411475A

US2411475A - Simplified duplicating device

Info

Publication number: US2411475A
Application number: US597365A
Authority: US
Inventors: Stockman Irving
Original assignee: MAURICE SCHOENBRUN
Current assignee: MAURICE SCHOENBRUN
Priority date: 1945-06-02
Filing date: 1945-06-02
Publication date: 1946-11-19
Anticipated expiration: 1963-11-19

Description

Nov. 19, 1946. 1. STOCKMAN 2,411,475

S IMPLIFIED DUPLICAI'ING DEVICE Filed June 2, 1945 2 SheetsSheet 1 INVENTOR. Ir-v n 3 517C kmon BY 1:1"; 7. W

ATTO R A-Y.

Nov. 19, 1946.

l. STOCKMAN 2,411,475 SIMPLIFIED DUPLICATING DEVICE Filed June 2, 1945 2 Sheets-Sheet 2 INVENTORL Irving S'l'ockman ATTORNEK Patented Nov. 19, 1946 2,411,475 SIlWPLIFIED DUPLICATIN G DEVICE Irving Stockman, New York, N. Y., assignor of ghelhalf to Maurice Schoenbrun, New York, 7

Application June 2, 1945, Serial No. 597,365

13 Claims 1 This invention relates to new and useful improvements in a simplified duplicating device.

More specifically, the present invention pro-- poses. the construction of a duplicating device characterized by having a base and a frame pivotally. and movably mounted thereon, the frame having two pivotally connected members between whicha stencil sheet is adapted to be stretched.

Still further, it is proposed to provide a. device as aforesaid in which the frame can be quickly assembled and disassembled with and from the base.

length and Width.

. For further comprehension ofthe invention,

and of the objects and advantages thereof,reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel featuresof the invention are morepartieularl set forth.

In the accompanying drawings forming a material part of this disclosure;

Fig. 1 is a perspective view of a device constructedin accordance with this invention.

Fig. 2 is a section on the line 22 of Fig. 1, adjusted positions of the frame being indicated in dot-dash lines.

Fig. 3 is an enlarged section on the line 3-3 of Fig. 1, parts being shown in full.

Fig. 4 is an enlarged perspective View of the frame of the device of the present invention, a portion of the base also being shown.

Fig. 5 is a section on the line 5-5 of Fig. 4.

Fig. 6 is a section on the line 6-6 of, Fig. 4.

Fig. Tis an enlarged section of a portion of the frame.

Fig. 8 is a plan view of a device constructed in accordance with a modification of this invention.

Fig. 9 is a-perspective view of a slide pad used with the device.

Fig. 10'ls a perspective view of a device constructed in accordance with a further modification of this invention.

Fig. 11 is a perspective detailed view of the slide hinge used in thi device.

The simplified du licating device, according to thisinvention. comprises a base I0, which may be a rectangular block of wood. It has four legs II at its four corners. The top two legs ii are bored axially providing sockets l2. A rod l3 having legs I4, is mounted in these sockets. The legs extend in these sockets and are pressed upwardly by springs l2, located in the bottom of these sockets. Rod l3 thus traverses the top margin,

Another object is to provide a device as afore of the base. Two movable guide strips H5 extend along'the sides of the top face of the base, and may be secured at various positions by screws I5 which may slide in parallel slots I5 formed in the base it. The connection portion of rod I3 is rectangular in cross section. Two tubes: |6,.with rectangular openings are slidably mounted on rod l3. The outer periphery of these tubes is circular and is adaptedto engage within a sleeve L6? from each of which extends a leg l1, and projects over the top face of the base. f

A frame I8 is disposed on the top faceof the base and connected to the legs l1, as will. pres-y ently appear. The frame has a bottom frame member l9 the top face of which is covered by; felt 2B. A top framemember 2| is pivotally cone; nected to member I!) by hinges 22 disposed at the upper end of the frame members. l9 and 2| Frame member 2| has two raised tubes .23 along the top of its longitudinal sides, througheach of which extendsone ofthe legs ll. That istoj say, to assemble the frame withithe rod |3, the tubes 23 are merely slidover the legs The, frame is then pivotally mounted on. the base to swing about the tubes IS on the rod l3 andnor mally held in upwardly inclined position by spring. B It may also be raised and lowered parallel to the base by movement of thellegs [4 in the. sockets |2. l

1 Frame member 2| has a side tab 24 and top and bottom tabs 25 for facilitating the use of the frame. It is fastened at its bottom edge to the frame member H! by snap tab 26. Scales 21 are marked along the inner sides and bottom of the T frame member 2|, or if desired may be indicated along the outer margin as well. Frame members. |9 and 2| may be made of any desirable material. Frame member 2|. due to its more complex con struction, is best moulded in plastic.

Frame member 2| has, fixed to its under s de, depending pins 28.. Frame member 2| is adapted.

to be. disposed on top of a sheet of stencil paper 29. and then with the stencil paper affixed thereto by means of pins 28, it is placed ontop of the felt to be squeezed between the two frame members l9 and 2| Pins 28 pierce the stencil paper and extend into the felt, holding the stencil paper tightly in place.

The operation of the device is as follows:

Frame member 2| is placed on a sheet of stenw cil paper and is then secured between the frame members l9 and 2|, as aforesaid, and theframe.

H3 is slid on the legs ll of the rod l3. The frame canbe moved transversely of the. base by movement of the tube l6 along the rod I3, and can. be

shown in Fig. 9, over the top of the stencil pa--- per. This pad will cause ink to flow through the perforations of the stencil sheet andthus will reproduce the design of the stencil sheet on. the.

top paper of the layer of papers. beneath the:

frame 18. The pad will stretch the stencil sheet slightly the stencil sheet being firmly held by the pins 28. As soon as the top paper-has been'printed, the spring l3 will swing the frame l8 upwardly on the rod l3 and the top sheet withdrawn- The frame is shown in a swung position in Fig. 2 by the inclined d'ot d'ash figure. and in a raised position on a stack of papers by the horizontal dot-dash figure. As the papers of the stackvare successively printedand withdrawm the frame may be. lowered closer to the base by pressing. the legs f4 downwardly inthe sockets l2; The snap fastener 26 holds the frame members together so that the frame lt'tcan be swun'g'as. a unit to withdraw each; sheet of. paper as it is.

printed.

A device. contructed .in accordance with a modification of'thi's inventionisxshown in Fig: '8.v

It distinguishes frornthe previous device in that the tube. I6 is made in two parts Ida. and. [6b telescoped together sothat it can be. expanded:

and. contracted in length. and in that the. frame [8" is made expandable and contractable lengthwise and. crosswise so that its length. and/or width can be changed; In orderv to make the frame made telescopic. Only frame member 21" is shown in Fig. 8 but it will be understood that frame member member 21' has its. side members" formed; of two telescoped parts 2m and. 21b and its top and bottom members formed of two telescoped parts 21c and 21d, each of the partsZl'c and Zld being integral with its adjacent side member part.

Thus the frame. I 8 can be quickly enlargedi or made small to accommodate a larger or smaller sheet of stencil paper. Other parts of this device corresponding toxsimilar parts of the deviceof Fig. 1 are indicated. by like references with an accent added.

A device constructed'in accordance withv a fur"- ther modificationof' the invention is shown in Fig. 10. It distinguishes from the device of Fig. 1 in that it cannot be moved over the base but must stay in one .position. The rod .l3 has two right angle trunnions 3i, and the frame. member 2l"' has two orificed, lugs 32 in which the trunnions 31. are disposed, hinging, the'fram I8 to the r0d' l3. The trunnions 31 extend in the same directionso that frame 18" can be quickly slidthereon or slid thereofi as desired. v 7

While I have illustrated and described the preferred embodiments of my invention, it is to'be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications comingwithin the scope of the invention as defined" in theiappended claims.

Havingthus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

changeable in size, both the frame membersare' I9. is made similarly. Frame ment of. said. tube onsaid bar and lengthwise of said. base. by movement of said top frame member on said tube legs, said frame members being adapted to hold between them a sheet of stencil paper-having an imprint to be duplicated whereby a sheet of paper disposed between said base and said frame may have the print of said stenc-il reproduced thereon by sliding an inking pad on top of said stencil sheet;

2. A duplicating device 'comprisinga base having' socketsat its upper corners; a" U shaped rod having vertical legs in said sockets and ar'bar connecting said legs" and traversin'gthe uppermar ginof'said base; a slide hinge SlidflibiYaIldiGtEt ably mounted on said; bar and having spaced straight legs extending'over said ba'se, and a frame disposed on said'base having two superposed hinged frame members; the top member having spaced tubes along its" sides slidably mounted on said tube legs whereby said frame can be moved crosswiseof said base by movement of said tube-on said bar and lengthwise-of said base by movement of said topframe mem-' members together. forswmg'ing as. a unit above said bar;

3. A duplicating: device comprising a base-having sockets at its-upper corners; -'U-s1iaped? rod-f havingvertical legs slidably disposed in'said sock ets and a bar connecting said legs and traversing the upper margin ofsaid base slide-hing eslid ably and rotatably mounted on said 'barand having spaced straight legs extending over said base;

said spaced straightlegs-being held i'rr-a normally inclined position by a coilspring. engagetfi onsaid bar. and a frame disposed on'. saidi base having two superposed hinged frame membersgfthe top member having spaced tubes along its sides:S1id'-.-' ably mounted on saidtube legswherebysaidiframe can be moved crosswise of: saidib'aserby movement. of said tube on said bar and: lengthwise ofsaid base by movement of said top framefmembers'on, said tube legs said framemembersr-being adapted to hold between them a sheet" of. stencil: paper;- having an imprint to be duplicated ;whereby-a.

- stackv of'paperdisposed: between. said base and said frame may have: the print of said: stenciL.

successively reproduced thereon by successiyely sliding: an. inking. pad on: top of said stencilsheet and removing the. papers of: said. stacleene. by" on'eassaid print is-reproduced thereom-said vet-a tical legs being pressed into said. socketsafter a.

number of sheets of paper havebeen removed:

4. A. duplicating device comprising, a; base-have. ing' sockets. at. its upper" corners-andadjustable: guides: along its side edges fonguiding. a stackiof.

. 5. papers fdisposedj on saidbase, a U--shaped rod havingfiverticallegs slidably disposed in said sockets and being held in raised position by springs in the said-sockets and a bar connecting said legs and traversing the upper margin of wise of said base by movement of said tube on said bar and lengthwise of said base by movement of said top frame memberon said tube legs, said frame members being adapted to hold between them a sheet of stencil paper having an imprint to be duplicatedwhereby the sheets of paper of said stack may have the print of said stencil reproduced one by one thereon by successively sliding an inking pad on top of said stencil sheet, and removing the top sheet of paper after each sliding.

5. A duplicating device comprising a base having sockets at its upper corners and adjustable guides along its side edges for guiding a stack of papers di posed on said base, a, U-shaped rod having vertical legs slidably disposed in said sockets and abar connecting said legs and traversing the upper margin of said base, a slide hinge slidably and rotatably mounted on said bar and having spaced straight legs extending over said base; anda frame disposed on'said base having two superposed hinged frame members, the top member havingspaced tubes along its sides slidably mounted on said tube legs whereby said frame can be moved crosswise of said base by movement of said tube on said bar and lengthwise of said base by movement of said top frame member on said tube legs, said frame members being adapted to held between them a sheet of stenci1 paper havin an imprint to be duplicated whereby the sheets of paper of said stack may have the print of said stencil reproduced one by one thereon by successively sliding an inkin pad on top of said stencil sheet and removing the top sheet of paper after each stamping, said top frame member having scales around a plurality of sides of its inner and outer margin for coaction with said stencil sheet.

6. A duplicating device comprising a base having sockets at its upper corners, a U-shaped rod having vertical legs in said sockets and a bar connecting said legs and traversing the upper margin of said base, a slide hinge slidably and rotatably mounted on said bar and having spaced straight legs extending over said base, and a frame disposed on said base having two superposed hinged frame members. the top member having spaced tubes along its sides slidably mounted on said tube legs whereby said frame can be moved crosswise of said base by movement of said tube on said bar and lengthwise of said base by movement of said top frame member on said tube legs, said bottom frame member having a, felt lining on its top surface, said frame members being adapted to hold between them a sheet of stencil paper having an imprint to be duplicated whereby a sheet of paper disposed between said base and of said base, a slide hinge slidabl'y and rotatably mounted on said bar and having spaced straight leg-s extending over saidbase, and a frame disposed on said base having two superposed hinged frame members, the top member having spaced tubes along its sides slidably mounted on said tube legs whereby said frame can be moved crosswise of said baseby movement of said tube on said bar and lengthwise of'said base by movement of said top frame member on said tube legs said bottom frame member having a felt lining on its top surface, said frame members bein adapted to hold between them a, sheet of stencil paper having an imprint to be duplicated whereby a sheet of paper disposed between said base and said frame may havethe print ofsaid stencil reproduced thereon by sliding an inking pad on top of said stencil sheet, said top frame member having depending sharp points adapted to pierce said stencil sheet and felt for holding said stencil sheet tightly stretched between said frames during said sliding. l

8. A duplicating device comprising a base having sockets at its upper corners, a U-shaped rodhaving vertical legs in said sockets and a bar connecting said legs and traversing the upper margin. of said base, a slide hinge slidab y and rotatably mounted on said bar and having spaced straight legs extending over said base, and a.

moved crosswise ofsaid base by movement of said tube on said bar and lengthwise of said base by movement of said top frame member on said tube legs, said frame members being adapted to hold between them a sheet of stencil paper having an imprint to be duplicated whereby a sheet of paper disposed between said base and. said frame may have the print of said stencil reproduced thereon by stamping an inking pad on top of said stencil sheet, said first mentioned tube having two telescoped parts and said frame being expandable transversely and longitudinally for accommodating different size stencils.

9. A duplicating device comprising a base havin sockets at its upper corners, a U-shaped rod having vertical legs in said sockets and a bar connecting said legs and traversing the uper margin of said base, a slide hinge slidably and rotatably mounted on said bar and having spaced straight legs extending over said base, and a frame disposed on said base having two superposed hinged frame members, the top member having spaced tubes along its sides slidably mounted on said tube legs whereby said frame can be moved crosswise of said base by movement of said tube on said bar and lengthwise of said base by movement of said top frame member on said tube legs, said frame members being adapted to hold between them a sheet of stencil paper having an imprint to be duplicated whereby a sheet of paper disposed between said base and said frame may have the print of said stencil reproduced thereon by sliding an inking pad on top of said stencil sheet, said first mentioned tube having two telescoped parts and said frame being expandable transversely and longitudinally for accommodating different size stencils, each of said frame members having telescoped parts effecting said expansion.

10. A duplicating device comprising a base having sockets at its upper corners, a U-shaped rod assets 7 having. vertical legs. in. said socket anda bar con nectingsais.legsranditraversing the upper margin ofg'saidbase, andia frame hinged to said bar and haw/ting;E twe superposed: hinged. frame: members:

saidl'frame members being adapted: to hold; be

tween them sheet. of stencil. paper.- having an: imprintte be duplicated whereby a sheet. ofpaper dispesed between said base and said frame may have. the print of said stencil reproduced-thereon by sliding, an inking pad. on top of. said stencilsheet.

1,1.. A. duplicating device. com-prisingv a base havmg. sockets at? its upper corners, a. U-shaped red having; vertical legs in said sockets and a barcennecting; said legsand; traversing the upper: maagir-ix of said base, and-a frame hinged to-said banandz having two superposed hinged. frame members, said frame members. being adapted to held between them a sheet of stencil paper hav ing. an. imprint to. be duplicated whereby a sheet of paper disposed. between said base and. said fnam smay have; the: print of said stencil repro' duced thereon by sliding an inking made en top ofssaid stencil. sheet,w said. hinge between. said firame and bar including tworight angle truni ing. an: imprint to be duplicated wherebx asbeet of paper disposed between said base: and-said frame may have the print of said stencil repreduced thereon by sliding anv inking pad on ton of. said stencil sheet, said; hinge between; said frame and. bar including two right angle 13111119: nions rigid with. said bar and. two lugs on. said! irarnemounted on said trunnions, saidtrunnions; facing in: the same; direction whereby said. lugs can be. slid thereon and thereoff. v

13. A- duplicating device. comprising a base; havin sockets at upper corners; a U-shapedred having; vertical legsin said sockets: and a ban connecting. said legs andtraversing the upper;v margin: of said base; a slidehingeslidably and rotatably mounted on said bar and having, spaced traight legs vextending. over said base, and a. frame disposed on; said base having two supkposed hinged frame members, the tap member; having spaced, tubesv along its sidesv slida-bly; mounted on said tube legs whereby said frame can. be moved crosswise of saidbase by move ment of said tube on said bar and lengthwise oi. saidbaseby movement of saidttopirame-member onsaid tube leg-s, said frame members being;

adapted.- tn held between them a sheet; of stencil, paper having; an imprint: to be duplicated where by a sheet ei pa-perdisposed] between said base ands-aidfra-me may have theprintrof said stenciL reproduced thereon by sliding an. inking pad on top of saidistencilsheet a pair of movable guides adinstably' mounted on: said: baseeby beltsv engag-- ing; parallel grooves farmed inv the bases 5- 4