US415528A

US415528A - Type-writing machine

Info

Publication number: US415528A
Authority: US
Publication date: 1889-11-19
Anticipated expiration: 1906-11-19

Description

R LASA H.

NE' NOVI MAGHnted IHNG Pat TYP Ve T11 UNITED STATES PATENT OFFICE..-

GODFREY H. LASAR, OF ST. LOUIS, MISSOURI.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 415,528, dated November 19, V1889.

Application filed October 1l, 1886. Renewed October 22, 1889. Serial No. 327,785. (No model.)

souri, have invented a certain new and use-` ful Improvement in Type-Vriting Machines,

` ot' which the following is a full, clear, and

exact description, reference being had to the accompanying drawings, forming partot this speclfication, and in which- Figure l is a top view illustrating my improvement. Flg. 2 is a side elevation. Fig.

3 is a rear elevation. Fig. et is a detail front elevation. Fig. 5 is a horizontal section taken on line 5 5, Fig. 2, looking' in the direction of the arrows. Fig. (5 is a detail section showing part of the carriage-roller and part of the ribbon-holder.

This invention relates to improvements in ribbon spools and holders tor type-writers; and it consists in features of novelty hereinafter fully described, and pointed out in the claims.

Referring to the drawings, A represents the paper-roller, and B represents a block supported on a stein B, by which it is secured to the main frame or base of the type-writer. Dovetailed into the block B is a laterally- -moving frame O, which carries the ribbonspools D and E, the block B being provided with a set-screw B2, by which the frame O maybe shifted sidewise to change the position of the surface of the ribbon on which the type strikes, the inner end ot the screw B2 entering the part O of the frame that is dovetailed into the block B. The frame G has projections O', into which are screwed inclined journal-pins F, as shown in Fig. 5. Upon the j ournal-pins F it ratchet-Wheels G, which have hubs G, provided with flanges G2, and extending outward from the hubs G are noncircular extensions G2, over which slip the spools D and E, the sockets in the spools corresponding in shape with the extensions G3. The spools are heldin place on the extensions by spring-catches I-I, secured to the extensions G3 in slots or openings H. Itwill thus be seen that by simply pressing inward on the springs H the spools may be removed, and it will also be seen that the spools will be made to revolve or turn with the ratchet-wheels G. The ratchet-wheels are held upon the journals `ends of which lit in the hubs F by means of a U-shaped frame I, the upper l between the flanges G2. (See Fig. 4.)

IVhile the framev prevents the ratcheti wheels' from slipping` ott the journals, itrdoes not interfere with their rotary movement. The trame I is pivoted to the frame C at I', and its tension against the hubs G is increased or diminished by a set-screw I2, and

-by loosening the set-screw the frame may be `mov ed back from the hubs G to permit of the removal of the ratchet-wheels from the journal-pins.

In Fig. 2 the spool and ratchet-wheel on the side of the device presented in the ligure are removed.

.I represents a bi t' u rcated dog, the respective arms J of which en gage the respective ratchetwheels G. The dog is pivoted to a lever L at L so as to be swung or moved into engagement with either of the ratchet-wheels, so that the ribbon M may be alternately wound from one onto the other, and the dog is held` in engagement with the ratchet-wheel by a spring J2, connecting it to the frame O. The lever L is pivoted to the frame O at L2, and

`may be provided with a finger-piece L3, by

which it maybe depressed to turn the spools through means of the dog; or it may be connected by a bar or rod L4 to a bar or rod (not shown,) extending beneath the key-levers of the machine, so that each time a key-lever is operated the spools will be turned. In another application, Serial No. 232,733, tiled March 28, 1887, I have shown, described, and claimed an equivalent means for feeding the ribbon. The upper end of the frame O projects inwardly toward the roller, forming a horizontal portion O2.

The ribbon M passes from one spool up and over a bar N, which is inclined toward the roller, forward and around the front end of an armO, which projects over the roller, back vand over a bar N', which is inclined toward the roller, and down to the other spool, the bars N and N having verticalV projections N2 and the arm O having projections O extending horizontally rearward to prevent the displacement of the ribbon. The arm O extends over the paper-roller A, as stated, and holds the ribbon in close proximity to the roller, as shown in Fig. 2. To permit of the arm being thrown up, as shown in Fig. 6, to expose the roller and the printing it is hinged to the frame C, which supports it, at O2, and when thrown up it comes against a projection O3 on the frame C. It is held in its lower position, against a projection O4, by a spring Oi", connecting a lug -O6 on the arm to the frame O, as shown in Fig. 2. Vith this arrangement the ribbon is supported in a line diagonal to the length of the roller A and is supported above the Toller-to permit of the printing being done on top of the roller, where it can be more conveniently inspected than when done beneath the roller, such an arrangement being convenient to be used in connection with a machine where the type-bars have a downward movement-as, for instance, like that shown in my application Serial No. 215,907. The ribbon is made to cross itself, as shown in Fig. l, so that where it is desired to print through a single thickness of the ribbon, (instead of through a double thickness,) as

shown in my application Serial No. 35,145,V

frame, spools secured to the frame,arm for supporting the ribbon over the paper-roller, block supporting the spool-frame, and screw for adjusting the spool-frame, substantially as and for the purpose set forth.

3. In a type-writer, the combination of a frame extending upward and inward and ribbon-spools, the spool-journals inclined toward the roller, guide-bars inclined toward the. roller, arm extending inward from the frame over the roller, and aribbon extending from spool to spool over and under the end of the arm obliquely to the length of the roller.

4. In a type-writer, the combination of the frame, projections on the frame, journal-pins secured `to the projections, ratchet-wheels having flanged hubs and extensions and fitting on the journal-pins, spools fitting on the extensions of the ratchet-wheels, springcatches for holding the spools on the extensions, and frame fitting in the anged hubs of the ratchet-wheels, substantialljT as and for the purpose set forth.

5. In a type-writer, the combination of the frame, projections C on the frame,'journal pins F, secured to the projections, .ratchet- Wheels G, flanged hubs G', secured to the ratchet-wheels and having extensions G3, spools fitting on the extensions, springs H, hinged frame I, bearing against the hubs G of the ratchet-Wheels, and set-screw I2, substantially as set forth.

GODFREY H. LASAR.

Vitnesses:

SAML. KNIGHT, GEO. H. KNIGHT.