US361114A - Walteb j - Google Patents

Description

(Model.)

W. J.'BARRON.

TYPE WRITING MACHINE.

N,0.361,114. PatentedAprQ12,1a87.

, fll- -E` UNITED STATES PATENT OFFICE.

WALTER J. Bannon, `or NEW YORK, N. Y., AssIGNoE 'ro Amos DENsMoEE,

on MEADVILLE, PA.

TYPE-WRITING MAoHiNE.

SPECIFICATION forming part of Letters Patent No. 361,114, dated April 12, 1887.

Application filed June 2S, 1886. Serial No.206,432. (Model.)

To all whom it may concern:

Be it known that I, WALTER J. BARRON, a citizen of the United States, residing at New York, in the county of New York, State of New York, have invented certain new and useful Improvements in Type-Vriting `Ma-4 chines, of which the following is a specification, reference being had therein to the 'accompanying drawings.

My invention relates to improvements in typewriters, particularly in the machine known as the caligr'apln 7 and the objects of my invention are to increase the steadiness of the paper-carriage and prevent its Vibration while operated under high speed, and at the saine time to diminish the power required to move or the friction of said carriage against its supports by dispensing with one of the guide-rodslately used on said caligraph, and for which Letters Patent No. 330,198 were granted to me November 10,1885; and also to provide means to release the carriage and permit the operator to slide it with one hand to the right or left the whole length of the guiderod, although dispensing with the release-key; and also to permit the same line to be written over and over again on the same place. I accomplish these objects by the oonstruction illustrated in the accompanying drawings, in which- Figure l is a rear view of a type-writer provided with my improvement, the connecting-rod of the carriage being shown as broken away to exhibit the coiled spring upon the carriage-frame. Fig. 2 is a transverse vertical section of the carriage and its supportingframe. Fig. 3 is a transverse section of the carriage-hinge, showing the carriage-racks disconnected from their pawl as when said carriage is pulled in the direction of the arrow thereon.

In the drawings, A represents the main frame of the typewriter, and A and A2 are standards secured upon the top of the frame ad- 4 5 joining its ends, to retain the rear guide-rod, B. Upon this rod is mounted the yoke C, having a perforated pendent lug, c, near each end, that can slide freely but with great steadiness thereon. The yoke is also provided with two lugs, (Y, projecting upward from points adjacent its two ends, and these lugs are perforated to receive the back rod, D, of the carriage D, carrying the platen E, said rod being rigidly counccted to the carriage, and forming the hinge on which the carriage turns, While the guiderod B forms the hinge on which the carriage can be rocked while being pulled toward the operator to disconnect its racks f j 2 from the spacing-pawl g, pivoted on the upper end of the spacing-lever G, and permit the carriage to be moved to the right or left, as the yoke Gis loose upon the rods B and D. The stationary rack f2 is secured, as usual, to the yoke C by the screws c", while the springmoved rackfis connected with the rackf2 by 65 screws c3, passing through slots in the'rack f. To disconnect the rack from'the pawl g, the operator, by means of the front handle, D2, (shown broken away,) simply pulls the carriage toward him, as shown by the arrow in Fig. 3, until arrested by the bindingvof the joints d di of the -connectingrod F against the ends of the arms D3 and H, said joints being made somewhat loose-tting for that pury pose. The carriage, being thus released, can be moved to the right or to the left without releasing the handle D2; but as soon as the handle is released the carriage is returned back to its normal position audits racks again in engagement with the pawl by means of a 8o spring having one end secured to the carriageframe and the opposite end bearing upon the yoke or its stationary rack. Upon the lefthand side of Fig. 1 this spring is shown at I, coiled upon the back-rod D, of the carriage, one end being secured to said rod at fi, while the opposite end enters a notch in the yoke, or bears against it, at t2. On the right-hand side of Fig. l a dat spring, I, is used forthe same purpose. One end is secured to one of the sta- 9o tionary collars k,- fastening the paper-tableK to the carriage-rod D, while the opposite end rests upon the top of the stationary rack; and

this binding of the spacing-racks to the carriagc takes up much of the shaking or vibration of the carriage and causes it to run steadily upon the single guide-rod B, and asl there is lessy friction with a single rod than with two, the carriage can be propelled with less power, and the tension may be less upon the spring roo at the lower end of the arm H.

The retraction of the carriage by the spring I may be arrested by the racks coming in coutaet with the pawl; but this would cause unnecessary friction of said pawl against the grooves at the bot-tom of each tooth. I obviate this friction by having the retraction arrested by the paper-table K (or other rigid device on the earriage)in1pinging against the ings c ofthe yoke, and thus have the end of the pawl free from weer and friction.

Having now fully described my invention, I claim- 1. The combination of a spring and rod, D, with the carriage guiderod and the letterspacing mechanism of i type-writing machine, substantially as and for the purpose described.

2. The combination of a Spring, the carriagefiaine connected therewith, its paper-table, the yoke, and letter-spacing mechanism of :t typewriting machine, snbstentoiiy as and for the purpose described.

In testimony whereof affix my signature in presence of two witnesses.

TWALTER J. BARRON.

Witnesses:

E. E. MAssoN, lsimo S. SMITH.

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