US1873563A - Duplicating machine - Google Patents

Description

Aug. 23, 1932. E, EUTH 1,873,563 f DUPLICATING MACHINE I Filed Feb. 2, 1951 2 Sheets-Sheet w a 4 Z +1 m V! 7 re Wu fw WMW T min a Ha Q a m i M ny a: d a L 1 a 1 .HINIMIIH i J. E. EUTH 1,873,563

DUPLICATING MACHINE Aug. 23, 1932.

Filed Feb. 2, 1951 2 Sheets-Sheet 2 Patented Aug. 23, 1932 UNITED STATES.

JOHN E. EUT'H, or CHICAGO, ILLINOIS, .assrenon ro unirnnnn'rocnarrrrcnnersrnn 00., OF CHICAGO, ILLINOIS, A conronAr o v or ILLIlfTQIS":

nUrLIcATIne. MACHINE] Original application filed September 9, 1929, Seria1 No. -391-,'20'7: .:}Divided,andi this-applicationfiled Feb?' ruary 2,1931. Seria1;No:j513;041; i

This invention relates particularly to duplicating machines of the type in which the paper webs are carried over a. flat platen mounted between rails which support a type-' writing machine, which co-operates with the platen. I

The primary object is to provide improved mechanism adapted to sever paper webs which have been drawn over the platen.

The present application constitutes a division of my application Serial No. 391,207, filed September 9, 1929.

The invention is illustrated in a preferred embodiment in the accompanying drawings,

in which- Figure 1 is a side elevational view of a.

duplicating machine embodying the inven tion; Fig. 2, a broken plan view of the platen and cutting mechanism; Fig. 8, a broken longitudinal vertical sectional view taken as indicated at line 3 of Fig. 2; Fig. 4, a similar view showing the blade after it has severed the webs, taken as indicated at line 4: of Fig. 2; and Fig. 5, a perspective view on an enlarged scale showing the cutting blade.

In the preferred embodiment illustrated, A designates a frame comprising a standard A and a surmounting horizontally disposed bed A B, a platen mounted in the front portion of the bed; 0, a typewriting machine on rails which form the main portion of the bed; D, web-control-mechanism mounted in the rear portion of the bed A and E, webcutting mechanism mounted on the front portion of the bed A The duplicating machine comprising the frame A and the typewriter C mounted thereon are of well-known construction. The typewriter is mounted on longitudinal rails 1, having rearward extensions, or arms, 1? between which the demountable device D is supported. As shown in Figs. 3 and 4:, the rails or longitudinal members are connected at their front ends by a cross-bar 2, which is equipped with pins or hooks 3 adapted to engage register perforations with which the multiple strips of paper are provided.

The platen B is mounted in a manner usual in this type of machine. It is normally held ed on a pivot 9 carried by fixed arms 10 which pro ect from a cross-bar or rod 11, which connects the members of thestandard A near their lower ends. a

The mechanism4 also includes a rock-shaft 12 having fixedly secured thereto bent arms 13 which are connected at their free ends by a clamping-bar 14 which constitutes also one ofa pair of shear-members. The bar 14 is provided with perforations 14 which accommodate the hooks 3 when the bar is in clamping position. I

The typewriter O is capable of being moved forwardly and rearwardly .on the track for line-spacing, and is capable of being fed transversely in the typing operation.

The web-control mechanism D is described in detail in my co-pending application Serial No. 391,207.

The cutter mechanism E comprises a rotatable shear-member 15 which co-acts with the shear-member 14. The shear-member 15v is provided with trunnions 16 which are j ournaled in bearings 17 with which the front ends of the member 1 are equipped. An op-. erating handle 18 is provided to rock the shear-member 15 and is held upraised normally by a spring 19 which is kept in position by an arcuate arm 20 passing through the coil of the spring. The shear-member 15 has a shearing-edge 15 which,'pr'eferably, has a high point at the center and tapers in both directions therefrom, so that when the paper is sheared it is first pierced at the center and then sheared in both directions therefrom. d I

The foregoing detailed description has been given for clearness of understanding only,

with alever (iwhich is connected by a link 7 V and no unnecessary limitations should be" ing means mounted on said frame in front of the platen and adapted to grip webs led 7 over said platen; and a rotatable shear-member adapted to co-act with said clamping means to sever websheld' by the. clamping means." 7

2. Incombinationz a frame provided with websupporting means; a spring-held clamp- 'iiig member prov'ided with a shearingedge,

adapted to grip Webs downwardly against actwith said Clamping-member and sever webs'grippedthe ieby- JOHNE. EUTH, Y

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