US1021120A

US1021120A - Type-writing machine.

Info

Publication number: US1021120A
Application number: US57190210A
Authority: US
Inventors: James A Whitcomb
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-07-14
Filing date: 1910-07-14
Publication date: 1912-03-26
Anticipated expiration: 1929-03-26

Description

J. A. WHITCOMB.

TYPE WRITING MACHINE. APPLICATION FILED JULY 14, I910.

1,02 1 1 20. Patented Mar. 26, 1912' UNITED STATES PATENT OFFICE.

for supporting the mechanisms used in a typewrltingmachine; v

The principal-object-of; the invention is to provide alight, strong-and artistic frame which i s designed partieularly with reference toilightness and strengtlnfor the reasonthat it is primarily intended tobeus'ed in connection with machines of the j folding type, which are particulai'lyiadaptcd for the use of travelers. I

- Another object of "the-invention is to provide a frame, the main portion of which,

i. e., the back and two sides, may be stamped out and formed from a single piece of metal.

A further object of the invention is to provide a machine frame, thelnajor portion of which is stamped from a single piece of metal and which is formedwith openings in the-sides thereof in such manner as to leave an outlined form having braced 'portions connccting'thesides of the'outline.

A still further-object o'f'the invention is to provide 'a"machine frame for typewriters which is formed by constructing the hack and two sides from a single piece of metal bent substantially into U-shape form and having the open end of the U toward the frontof the machine and by strengthening the front of the machine frame by means of a cross brace between the extreme point of the side fronts and by interposing another brace member between the side frames at portion,

substantially their upper middle the last mentioned 1 brace constituting the front board of the typewriting-machine.

A still further object of the invention is to provide a typewriting machine frame, the back and sides .of whichhare constructed from a single piece of sheet metal and by strengthening the rear corners thereof by means of brace plates, which also form a sutlicient expanse of surface upon which to properly attach-cushions or feet beneath the machine frame. I A still further o ject of the invention i rYrE-Wm'rme macnmn;

I Specification of Letters latcnt.

Application filcd-Ju1y' 14, 1910. Serial No..571,902.

JAMES A. WHITCOMB, OF MCALESTER, .OKLAHQMA.

at nted Mar. 26, 1912.

cushions or feet beneath the machine frame of a typewrit ng machine, which mach1ne frame is formed from stamped sheet metal.

'Other and more specific objects of this in vention will in part be obvious'and will in part-be pointed out in the specification hereinafter following by reference to the accompanying-drawings which form "a part of this application, and the scope of the invention will be indic atedby the claims.

Referring particularly to the drawings wherein like'numerals' are used throughout the several figures to indicate like parts, Figure 1 is a perspective view .taken in the rear of the machine frame, showing the frame in perspective elevation. -Fig. 2 is a perspective viewof the machine frame taken from the front thereof'and showing the frame in front perspective elevation. Fig. 3 isa detail of one of the corner braces used at therea'r corners of. the machine frame. 'Fig. 4 is a perspective detail of one of the front corners of the machine, shown in inverted relation in order to illustrate the structure for attaching cushions or feet beneat-h the front ends of the machine. Fig. 5 is a detail. sectional elevation showing the manner of attaching cushion feet. v

In a typewriting machine of the folding type it is'particularly desirable that the several. elements of. the machine ,be made as I light as is possible and at the same time be ing up under the hardusage to which a typewriting machine is apt to be subjected.

portion A is formed with a longitudinal -base bar 4 and an upper bar 5, 'which is curved at its middle portion to correspond with the curvature upon which type bar hangers (not shown) are adaptedto be set. The upper bar 5 is provided with two'rows of concentric openings 6, through which.

screws are-adapted to be passed in order to securely fasten the type bar hangers to the segmentformed upon the upper bar 5. The upper bar 5 and the longitudinal base bar 4,

to provide a novel structure forv attaching are tied together at thein middle portions by constructed in such manner as to present suiiicient strength to give the necessary rigidity thatnvill insure the machine stand- The typcwriting machine frame disclosed order to give stiffness or rigidity and is provided with a strip of felt 18 upon a short cross bar 7. The short cross bar 7 ties the several elements of the rear wall together in such manner as to form a rigid solid back wall for supporting the type bar action. I

The side portions B and G of the machine, are identical in conformation, with the exception of a fcw openings for screws which'are adapted to hold various portions of the operative mechanisms in the machine frame. Since the side portions B andt vertical offset brace bars 10 near their up- 25' per ends, and are attached at their front ends with the front portion of the base bars 9. The forwardly extending curved struts '11, are formed on their upperends with a flat base portion upon which a front board 12 is adapted to be screwed by means of screws 14. The curved struts 11, are cut away upon the upper portion of their front ends in the form of a small segment of a circle 15, in order to form a resting place for a platen (not shown). bled machine is folded over for purposes of transportation or carrying, after a manner well "known in the construction of folding typewrit-ers common in the typewriter art.

A front cross bar 16 is attached beneath the forward ends of the base bars 9, by means of screws 17. This cross bar consists of a flat piece of metal formed in L-shape, or L bar, in to the bar,

its upper surface in order to cushion any of the key bars (not shown), which may he accidentally forced into engagement with the front bar. A type bar rest 19, is attached to the side portions B and O, by means of screws 20, and extends across the upper middle portion of the machine just rearward ofthe front board'12. The segmental portion of the type bar rest is covered with a strip of felt 2], in order to form a cushion upon which the heads of the type bars are adapted to rest. Side bars 22,

which are indicated by dotted lines, are top bars 8, by

adapted to be pivoted tothe means of screws which pass through openings 24 in the forward portion of the top bars. The side bars 22 are adapted to carry the carriage portions of the machine (not shown} in a manner well known in the art of folding typewriters.

when the assem- I In a machine frame of thistypeconsiderable difficulty has been experienced in finding a practical means for attaching cushion feet beneath the typewriter frame. '-In the construction herein shown, the rear corners 1 and 2 of the machine frame, arestrengthened by means of triangular plates 25 and.

26, which are fixedly attached beneath the I rear corners 1 and 2, by ineans of screws 27, which are firmly seated in the machine' frame. The triangular plates 25mm 26 perform the double function of stiffening thecorners of the machine frame and also of providing a sufficient expanse of surface upon which to'attach cushi0n feet 28., The cushion feet '28. may be formed of rubber,

felt or any other'weil known resilient material, and are attached to the plates 25 and r 26 by means of small stub screws 29, which passdownwardly through the triangular plates 25and-f2 6 and engage small nuts 30, which are sctiin the cushion feet2 8.- Similar cushion feet 31, are attached near'each .end of the front cross bar by passing screws 32 downwardly through the front board into engagement with nuts 34, inthe interior of the cushion feet. Thus it will be seen that the cushion feet upon which the machine rests are all attached. to under braces of the machine frame. and are attached firmly in 'a .manner which insuresthat the act will not-:be .torn from their seats when the machine is undergoing the rough usages to whieh'a portable machine is apt to be subjected.

In the structure herein shown and described, the several'elements of the machine frame comprising the rearand the side portions thereof, as has been pointed out, are adapted to be formed from a unitary piece of metal, preferably aluminum. But I desire that-it shallbe understoodias being within the scope of my invention to form amachine frame comprising the several elements by cutting out the several braces and bars and attaching them together, either by soldering or by riveting,

1n a mannerjwell understood in the metal working arts. Havingthus described my invention what I desire to claim is 1. A typewriting machine frame comprising aback portion formed with a base bar, an upper ar provided with a segment adapted to receive type-bar hangers, a con necting bar extending between said base bar and said upper bar; side portions formed with top bars, base bars, forwardly extending curved struts, connecting bars connecting said top bars and said .base bars; a frontboard extending between said side portions and attached thereto, and a frontcross bar.

2. In a typcwriting machine frame the combination of a back portion, side portions connected. to said back portion in such manner to form corners, triangular brace members attached tovsaid' back and said side portions at each of said corners, said triangular brace members being adapted to hold cushion feet, a front cross bar extend ing between said. side portions and adapted to hold cushion feet.

31in a typewriting machine frame the comloination of a back portion, side portions attached to said back portion in such mannor as to form corners, bracemembers at tached to said back portion and said side portions at each of said'corners and adapted to receive cushion feet, a front board extending between said side portions and attached. thereto, a front cross bar attached beneath the forward portion of said side portions, said side portions being formed of braces arranged in such manner as to substantially comprise a rectangular portion and a triangular portion forward of said rectangular portion.

A typewriting machine frame oomprising a back portion, side portions formed from a single piece of sheet metal, said back portionand said side portions being cut away in such manner as to leave a skeleton frame of substantially the outline of the outside boundary lines of said machine frame, said frame including in the back portion a segment adapted to receive type bar hangers.

A typewriting machine frame comprising a back portion, side portions formed from a single piece of sheet metal, having portions thereof cut away to form a skeleton frame Work and a segment for receiving bar hangers, and bracing means adapted to hold cushion feet and to connect the 40 sides of said frame.

6. In a typewriter, a frame having threeintegral sides, each side having a continuous base bar and a continuous top bar, the top bar of the rear side including a scgment adapted to receive bar hangers, the; top bars of the lateral sides including in each a horizontal portion and a downwardly sloping portion integral with the base bar,

a front board connecting the upper portions of the sloping bars, bars connecting the top bars and the base bars, and a front cross bar.

JAMES A. VVHITCOMB. Witnesses:

E. E. ST. GERMAIN, .M. B. NICHOLS.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, I). G.