US1697433A - Typewriting machine - Google Patents

Description

Jan. l, 1929.

E. T. MITCHELL TYPEWRITING MACHINE mmm! INVENTOR EDWARD TMITCHELL WITNESSEE KM WM.

ATTORNEY Patented Jan. 1, 1929.

UNITED STATES raam earner ortica.

EDWARD T. MITCHELL, O E SACRAMENTO, CALIFORNIA, ASSIGNOR TO REMINGTON TYPEIVRTER COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

l TYPEWRITING MACHINE.

Application filed October 1, 1926. Serial No. 138,886.

My invention relates primarily to typewriting machines but it is applicable geng erally to machines, such for example as listing adding machines, in which a sheet of paper is fed around a cylinder in order to be printed on after the general fashion of typewriting machines.

My invention has for its principal object to provide an improved device to prevent the paper from falling forward from the paper table.

My invention consists in certain features of construction and combinations and arrangements of parts, all of which will be fully set forth herein and particularly pointed out in the claims. o

One instance of my invention is illustrated in the accompanying drawings in which it is shown applied to a Remington billing typewriter or bookkeeping machine.

Figure 1 is a side elevation of my invention applied to the paper table of such a machine7 the paper table being shown in section;

Figure 2 is a front View of the same;

Figure 3 is a perspective View of my detachable guide removed from the machine; and

Figure 4 is a view in section on the line 4 4 of Fig. 1 and looking in the direction of the arrow at said line.

The Remington typewriter has its platen 5 mounted in a `platen frame which comprises amongst other things two end pieces 6 and several connecting rods 7. When this machine is used for billing purposes, or provided with an adding attachment to constitute what is known commercially as the Rem- 'ngton bookkeeping machine, it is sometimes equipped with the paper table and side edge guides shown and described in the patent to Hart for typewriting machine, No. 1,462,697, dated July 24, 1923. rlhe Hart paper table comprises a rather broad piece of sheet metal 8 which constitutes the table against which the paper lies, and by which the paper is guided down behind the platen, said plate being secured at each'end to a bracket 10 suitably cut out to be readily set o-ver the two round frame rods 7 that are shown in Fig. 1, .each of said brackets carrying a spring-controlled latch 11 by which it is held in place on the rod. The Hart side edge guides 12 are also made of sheet metal, each of them comprising a part 13 that lies iiat against the paper table 8 and a guide flange 14 perpendicular to the part 13 and projecting forward into position to guide the edge of the paper. Each of these side edge guides is adjustable right and left by means which include a thumb screw 15 passing through 'a slot 16 which is cut through a considerable part of the length of the paper table 8. It will of course be understood that this paper table and side edge guide construction is shown here merely for illustration purposes as my' invention can be readily applied lto various styles of paper tab-les and side edge guides.

The paper tables ordinarily employed for billing work are rather broad up and down,

and .stand at a rather steep angle, as shown in Fig. l, with the result that as the paper 17 lies against the front face of the table there is some likelihood of its falling forward over the front fac-e of the platen and this is especially true with that portion of the paper that has already been written on and is being fed upward in front of the paper table. It is the purpose of my invention to provide an improved device for preventing this falling forward of the paper.

Said device consists of two clips or paper guides 18, each made of a single piece of sheet metal stamped out in suitable shape fand formed or bent up as shown in the drawing. The clip or guide when completed includes a flat guiding flange or plate 2O fromwhich is bent olf at right angles a part or flange 21 designed to lie flat against the inner edge of the flange 14 of the associated side edge guide 12. The flange 21 is bent sidewise and thence back Iupon itself to form another parallel flange 22 so constructed and so related to the flange 21 that the device can be secured to the flange 14 by forcing it over said flange, the guide flange 14 being frictionally embraced between the walls 21 and 22 of my clip or guide. There is one of these clips 18 mounted on each of the side edge guides 12 so that each of them overlies the part 13 of said guide and is'spaced a suitable distance in front of it as shown in Fig. 1. The Hart side edge guides are wider at the bottom than at the top so that my guide naturally provides a chute or space between the parts 13 and 20 which is wider at the bottom than at the top. ln order to accentuate this widening out of the Apassageway and to more readily guide the leading edge of the paper 17 back of the plate 20, I preferably make the lower end of said plate 20 of somewhat pointed form, shown in Fig. 2, and curve it forward as` shown in Figl. Preferably also the upper end of the part 2() is curved outward or forward to some extent.

In use the paper is inserted downward in front of paperl table 8,\its right and leftyhand portions passing beneath the plates 20 and said paper being fed down around the platen 5 in the usual way. As the leading edge is fed out of the control of the platen and its associated devices, it is guided in under the lower ends of the plates and proceeds up in behind said plates and is thereby prevented from falling forward and causing the annoyance above mentioned.

I am aware that side edge guides provided with fixed flanges designed to prevent the paper from falling forward from the paper table, are known. Such fixed guides are useful when a long piece of paper is being used in the machine, but in the case of short bills they are in the way. They are so far removed from being an unmixedbenefit that on most machines they are omitted. My clips are much better than the fixed flanges in that the operator can apply them to the machine almost instantly :and remove them as easily, and also in that the can be placed in different ypositions up an down the guide flanges 14, so that the operator can readily adapt the machine for different classes of work and can do so in only a few seconds time. In .the case of very long bills the clip would be put near the top of the paper table as high as shown in the drawing or perhaps higher, whereasin the case .of some shorter bills they might be put considerably lower and with some classes of work sheets it might be better to dispense with them altogether. Made as they are each of a single piece of sheet metal of very simple form, their cost is trifling. Moreover, they are of such a character that they can be applied by the operator himself to existing machines without any change whatever in such machines.

What I claim as new and desire to secure by Letters Patent is 1. The combination with a paper table having a side edge guide, of a paper guide having a flange adapted to embrace said side edge guide in such fashion that the said paper guide can be secured to the side edge guide by its own resilience by the mere act of pushing it into place, and can be removed by the edge guide in such fashion that the said paper guide can be secured to the side edge guide by its own resilience by the mere act of pushing it into place, and can be removed by the mere act of pulling it off, said paper guide being placeable upon the side edge guide at different distances from the platen to suit the character of the work sheet.

3. The combination with a platen and a paper table for guiding paper to the back of the platen, and a side edge guide flange projecting forward from said paper table, of a guiding device secured by its own resilience to said flange, and projecting therefrom in front of said paper-table and spaced there from so that the part of the paper projecting upward from the front of the platen can be passed up between said guidingrdevice and said paper table to prevent said paper from falling forward.

4. A paperclip consisting of a piece of sheet metal having a guiding portion adapted to lie in front of and spaced from a paper table, said sheet metal at one edge of said guiding portion being bent perpendicularly forward `and then through 180o backward to form a securing portion that can be forced over a sheet metal guide flange and that will retain itself in place by its own resilience.

Signed at Sacramento, in the countyv of Sacramento and State of California, this 21st day of September, A. D. 1926.

EDWARD T.' MITCHELL.

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