US876308A - Type-writer frame. - Google Patents

Description

N0.'876,308. PATENTED JAN. 7, 1908.

G1 AI TYPE WRITER FRAME.

APPLICATION FILED DEG-17' 1906.

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G. A.- SMITH. TYPE WRITER FRAME. APPLICATION FILED DEO.17.19 06.

No. 876,308. y

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G. A. SMITH. TYPE WRITER FRAME.

APPLICATION FILED DEO.17.1906.

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APPLICATION FILED DEC 17 1906 WITNESQSES of my improved typewriter frame.

r parts supported by the rear wall.

UNITED STATES PATENT OFFICE.

GEORGE Al SMITH, OF NEW YORK, N. Y., ASSIGNOR OFSIXTEEN ONE-HUNDRED-AND-FOURTHS TO JAMES W. HENNESSEY, OF NEW YORK, N. Y.; FORTY-SIX ONE-HUNDRED-AND-FOURTHS j TO' ARTHUR LETTS, OF LOS ANGELES, CALIFORNIA, AND TWENTY-ONE ONE-HUNDRED- AND-FOURTHS TO FREDERICK H. WARD, OF BROOKLYN, NEW YORK.

TYPE-WRITER FRAME.

useful Improvements in Type-Writer Frames,

of which the following is a specification.

My invention relates .to typewriters and more particularly to typewriter frames, having among its objects to provide a frame easily separated into two sections in order to facilitate the repair, cleaning, etc., of the inclosed component parts of the machine; and also to provide a frame of such a construction as to more thoroughly protect these parts, and a. frame of such light weight as .to 'greatly facilitate its transportation.

Further, my invention has for an object to .provide'a frame having supports for a novel arrangement of the operating parts permitting a construction of a greatly simplified form of machine.

With these and other objects in view, the invention consists of the construction and combination of parts hereinafter described and finally recited-in the claims.

In the accompanying drawings illustrating my invention: Figure 1 is a front elevation 2 is a side elevation of the same. Fig. 3 is a rear elevation of the upper frame, showing the carriage and-the rail supporting said carriage. Fig. 4 is a rearelevation of the lower frame, showing the rectan ular opening and the Fig. 5 is a transverse sectional view of the upper frame on line 5 5 of Fig. 1. Fig. 6 is a'similar sectional view of the lower frame online 6 6 of Similar characters of reference denote corresponding parts throughout the several views.

1 denotes the vlowerisection of the main frame, of skeleton form, approximately rectangular in. sha e. and having an integrally cast forwardly-s oping portion 2 at the front,

said portion being open to permit the arrangement and use of the finger bars 3. The upper edge'of said portion 2 is provided with inwar'dlyextending flanges 4 which inpart are inclined and in part are parallel withthe bottom near the front bar 5, said front bar 5 having a longitudinal recess or depressed Specification of Letters Patent. Application filed December 17,1906. Serial No. 348.293.

Patented Jan. 7, 1908.

portion 6 to facilitate the use of the spacer bar 7. The lower frame 1 is provided with approximately rectangular openings 8 in the back and sides, said 0 enings being adapted to'be covered by suita le plates 9, preferably i aluminium, to better protect the parts inclosed. Suitably supported in said frame is a front plate 10 provided with aninwardly flanged semicircular opening 11 at the topand a lower inwardly projecting rib 12 con ormingfto the shape of the o ening. 11. Said rib 12 supports the type en s 13 of the type bars 14 an movement of said type bars.

On the sides, intermediate between the 7 supports 16 for a horizontal cross-piece 17 having'an' attached semi-circular plate 18.' Said plate 18 is kerfed at 19 on 1ts lower curved ortion to allow the upward movement 0 the ty e bars 14 and has perforations 20 in said kerfed portion 19', through which passes a rod 21 conforming to the curvature of the plate, and pivoting said bars 14; 'Adjacentto the supports of said plate 'is adapted to carry a felt strip 15 for lessening the force of contact on the return so I 18 on the frame 1, are perforations 22 supporting a transverse ribbon shifting rod 23 which;controls the direction of the ribbon movement andperforms a second function of acting as a way-rod for the carriage wheel24. Immediately beneath said ribbon shifting rod 23'and near the bottom edge of the frame 1, said frame has supports 25 for a transverse bar 26, said bar being kerfed at 27-to allow the upward movement of the type and back spacer actuating levers 28 and 29, and rovidedwith a lon itudinalgroove orfor ed ortion 30 exten ing through the kerf. 27.

n said groove is retained a fulcrum rod 31 pivoting the levers 28 and 29; Extending along the bottom of the rear Wall of the main frame -1 isan inwardly'projecting rib 32 cast integral with the frame. Above said rib is a flange 33 which, in combination with said rib forms a recess or housing for the extremities of the finger levers 34 pivoted on a transverse.rod 35. In the center of the rear Wall above theflan e 33 the'frame 1 is provided with an inwar ly projecting support or arm-- 34, .to which is pivoted a lever 35. Above 'andadjacent to the upper extremity of said 38, and with said pinion extending above theupper edge of the main frame 1. Adjacent said. block 36 and near the corner of the frame is a lug 39 adapted to support abell 40.

' Attached by screws 41 to the corner posts of the frame 1, though in such a manner as to bereadily removed, is an uppersection or covering frame 42. tends beyond the lines of the main frame 1 and is provided with a downwardly extend- 7 ing flange 43, save at the front Where an apl5 proximately rectangular-shaped recess 44 extends rearwardlyto the semi-circular plate 18, rendering the type bars 14 readily accessible. On the top frame 42 at both sides of therecess 44 are raised or turret-like portions 45 cast integral with the frame and adapted to contain the-ribbon-actuating ratchets 46, said .portions 45 being perforated to allow the passage of their spool-actuating shafts 47. At the rear'of said portions45 is an integrally-cast irregular-shaped vertical plate 48 provided with a recess 49 through which the type blocks 18 pass in striking the platen 50. Said vertical plate 48 is provided at the sides of said recess 49 with supports 51' for a type-bar guide or aiming-mechanism 52-.

Beneath said guide and on. the rear wall' of mount importance.

the plate 48 is a'reanvardlpprojecting flange '53, adapted to support and guide the ribbon plate 54.. Extending from said flange and towards the rear of the up er frame is anirregular opening 55 ada te to allow the easy operation of the mec anism, while to the rear of said opening, and on the sides of the covering frame 42 are vertical projections 56 adapted to. support the tabulating rod 57 and a rail 58, on which moves the carriage 5 9.

The arms 60- of the carriage are flattened near their forward extremities, forming plates 61. Said plates are Iconnected'byan integrally-cast lower connecting plate 62 and are adapted to su port a platen shift rod 63,

which rod contro s the reciprocal movement. of the platen 50 in a recess 64in the top of said plates 61.

Among the advantages of my improved.

frame its sectional construction is of ara- By it and the com inationof the inclosed parts supported as described, the sections or frames are readily separated, simply through removing the screws and lifting the upper of said frames,

without recourse to the usual disentanglement of the parts. l/Vith the upper frame removed the repairing, cleaning, etc., of the mechanism in the sections is greatly facilitated through the ready access to the neces- Said upper frame. ex-

sary parts. Further, the rectangular openings in the back and sides of the lower frame cooperate in providing ready means of ac cess to the parts for the specified purposes. Though durin use the machine is protected by the cover p ates covering'these openin s, T

the total weight of the frame is minimized y the elimination ofthe heavier. frame meta Again, thera'ised portions on the removable upper frame protect the ribbon ratchets and allowthe ready removal, repairing, clean-j ing, etc., of said ribbon ratchets, and the conformation of these portions lends a finished touch to the appearance of the machine. Finally, the arrangement of the lugs an upper or covering frame consisting of raised portions protecting the ribbonratch ets, a vertical plate at the rear of said portions, an inwardly extending rib on the lower portion of said plate, supports for a carriage rail, all of said parts of t integral with each other.

2. In a typewriter frame, a lower frame carrying supports for the operating mechanism, an upper or covering frame provided with anintegral vertical plate, and raised portions adjacent thereto and inclosing the ribbon ratchets.

3. In, a typewriter frame, a lower frame carrying supports for the operating mechan e upper frame being ism, an upper or covering frame consisting:

rotecting the ribbon ratchets, a vertlcal p ate at the rear of said of raised portions portions, aninwardly extending rib on the lower portion of'said-plate, supports for a carriage-rail, all of said parts of th frame being integral with each other.

'4. In a typewriter frame, a lower frame carrying supports for the operating mechanism, an upper covering frame provided with an integral vertical plate having a lower rearwardly-extending rib adapted to support a ribbon-guiding plate.

. Signed at New York city this 13th dayof December, 1906..

' GEORGE A. SMITH.

' Witnesses: p u

JOHN H. HAZELTONv C. B. SCHROEDER.

or supports, etc., herein specified, permits 1 e upper

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