US440360A - Type-writing machine - Google Patents

Description

(No Model.)

M. G. MBRRITT.

TYPE WRITING MACHINE.

No. 440,360. Patented Nov. 11, 1890.

. mize space.

NITED TATES MORTIMER G. MERRITT, OF SPRINGFIELD, MASSACHUSETTS.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 440,360, dated November 11, 1890.

Application filed June 11, 1890. Serial No. 355,005. (No model.)

To all whom it may concern.-

Be it known that I, MORTIMER G.MERR1TT, a citizen of the United States, residing at Springfield, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Type-\Vriting all whereby the hangers are immovably held in their relations to each other and to their common support, and whereby the usual disadvantageous effects of expansion and 0011-.

traction of the metal hangersupport are overcome. Other advantages inure to the improved construction.

Reference is to be had to the accompanying drawings, in which illustrations of the improved common ring-support for the hangers are given, together with the formation of the hangers. Figure 1 is a plan view of the ringsupport, showing one hanger thereon, part of the ring, however, being broken away to econo- Fig. 2 is a vertical section on line 2 2,]3ig. 1. Fig. 3 is a perspective view of one type-lever hanger, and Fig. 4 is a perspective view of a portion of a sub-ring'forming part of the ring-support. Figs.5 and 6 are views illustrating a slightly-modified formation of the ring and hanger.

The upper hanger-supporting ringA of the type-writing machine is formed of two ringsections a and b, the former being the main ring, and usually formed of cast-iron, and the latter consisting of a flat steel-plate ring or a ring of other suitable thin metal laid on the top of the ring a. The ring I) has a series of seats d for the type-hangers B. Each seat, so far as said ring I) is concerned, consists of a mortise, perforation, or recess extending through the ring, on the edges of which downwardly-extended projections f of the hangers rest. The bottoms of which projections, however, do not extend quite to a rest on the top of the ring a. Each hanger is provided with a screw-hole a little larger than its screw g. The screw passes through that hole and freely through the perforation in the sheet-metal ring and enters with a screw-engagement the castiron ring, and thereby binds the hanger to the two rings.

The hanger, as shown, consists of a strip of thin metal bent longitudinally into a U shape, the rectangular extensions on the opposite borders of the blank conducing to form, when the hanger is bent into shape, the seat-engaging project-ion f, consisting of two members. The innermost extension h of the hanger, as shown in Figs. 1, 2, and 5, serves by the lips o' t', as guiding means to align the type-levers centrally when swung up to effect the printing. This feature, however, forms no part of the present invention.

In Figs. 5 and 6 the-ring Z) is shown as provided with rectangular recesses d, which extend from the inner and outer edges thereof, the hangers being provided with adouble series of projections ff to fit said inner and outer recesses, the under edge portions 3 of the hanger sides between said projections 1n this arrangement resting on the top of the plate a. In the arrangement illustrated in Figs. 1, 2, 3, and 4 the under edge portion j of the hanger sides, which rest firmly on the top plate I), are to front and rear of the projections ff.

Practical construction of the ring, as described, has demonstrated that forming such ring A of the two ring sections, as described, in the upper b of which is the series of seats or sockets, each to receive'an extended bearing on its edges of the projection f of the hanger, overcomes disadvantages heretofore experienced, where, as heretofore, the hangers have been secured on a single ring. The positions relative to the center point to which they all converge have been variable, so that the type on the type-levers, which are pivoted in the hangers, have not always been presented against the platen for true alignment. As at present mounted, the type-bars when operated present at all times and under all conditions their type-face in practically perfect alignment. It is a simple and easy matter to produce the apertured ring I) by stamping or punching out, it of course being clear that the production of a cast-metal ring with apertures therein which have sharply-defined bearing-edges is practically an inexpedient matter.

What I claim as my invention is A ring-support consisting of two separate ness of said upper ring, and the confiningrings a and b, the one overlying the other screws passing loosely through the upper ring to and the upper one provided with apertures and for an engagement into the lower ring, through its thickness, combined With typesubstantially as and for the purpose described.

5 hangers provided with downwardly-extended MORTIMER G. MERRITT.

projections f, which are externally adapted Witnesses: to fit the borders of said apertures and Which H. A. OHAPIN,

have a- Vertical projection less than the thick- \V. S. BELLOWS.

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