US357920A

US357920A - Emery m

Info

Publication number: US357920A
Authority: US
Publication date: 1887-02-15
Anticipated expiration: 1904-02-15

Description

' roller being, after. this printing of each line,

- of whichthis intermittent rotation may be con- UNITED STATES PATENT OFFICE.

EMERY M. HAMILTON, OF NEW YORK. N. Y.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 357.920, dated February- 15, 1887. 7 Application filed December 2, 1886. Serial No. 220,494 (No model.) I

To all whom it may concern.-

Be it known that I, EMERY M. HAMILTON,

of the city, county, and State of New York,

tently Rotating the Feed-Rollers in Type- Writing Machines, of which the following-is a full, clear, and-exact description, referencebeing bad to the accompanying drawings,forn1- ing part of this specification.v

Figure 1 is a plan of a pair of feed-rollers with my new device for rotatingthem attached, and the remaining figures, from 2 to 7, inclusive, are detail drawings of detached parts, to be fully explained. I

In type-writing machines there is what is called the carrier, the office of which is to carry the paper over the point where the printing-impressions aremade by'the type'in lines from one side to theother of the paper, and also to move the paper directly through the carrier perpendicularly to the lateral or side movement to form successive lines of printing. This direct movement is accomplished by feed-rollers forming apart of the carrier, between which the paper passes, the

rotated a sufficient distance to carry the paper forward into position for the next succeeding line.

My invention relates to the device by means veniently accomplished by the operator; and

it consists in the deviceshereinafter described and claimed. Y

A represents the carrier formed-of a baseplate, a, two pillow-blocks, b b, one at each end, and a pair of rollers, B and G, jonrnaled in the said pillow-blocks. One end of the axialshaft 0 of the roller B projects beyond the pillow-block b, in whichit is journaled,

and on this projecting end is fixed a ratchetwheel, (7, and outside of this ratchet-wheel is a loose pulley or wheel, a. On the extremity of the shaft is fixed a hand-wheel,f. oted on the inner face of the loose wheel e is a ratchet,;q;'arranged as shown in full lines in Fig, 3 and in dotted lines in Fig. 2, so that it will ride over the teeth of the ratchet-wheel dwhen said wheel is rotated in one direction, e

and will engage the said teeth when rotated in the opposite direction.

It is a thumb-piece formed on the wheel 6 as aconvenient means for rotating or rocking the said wheel 'on the shaft 0. The ends of this thumh-piece extend out in either direction from the wheel, as shown in the drawings, and one end is weighted, so as to hold the wheel in its normal position, which is with ,the ratchet g resting on the lug z.

e. is the segment of a. cylindrical sleeve, which projectsfrom the innenface of the wheel 0 at its periphery over the pillow-blocks b, and is so proportioned and arranged relatively to the pillow-block as to limit the movement of the segment e striking against theend of the pil1ow-block, soas to move the wheel 0 one tooth or any desired given number of teeth at each movement forth and back of the said wheel. In the drawings the movement of asingle tooth is represented. This device constitutes an efiicient stop to limit the movement of the wheelc, as described; but any other suitable stop for the purpose may be used. 1

t is a lug or projection on top of the pillowblock b, which is so placed relatively to the ratchet 9 that when the wheel is in the position shown in Fig. 2 the ratchet will ride up on the said lug, and be thereby held out of engagement with the ratchet-wheel d, and the roller B maythen be rotated in either direction without obstruction.

The feeding of the paper, which is understood as being held between the rollers, is ac complished by the operator by rocking the wheel e into the position shown in Fig. 3 from the normal position shown in Fig. 2, the ratchet engaging the ratchet-wheel and rotating the said wheel, and of course the roller 13, a distance equal to the spaces between the teeth of the ratchet-wheel, which should be equal to the desired distance between the centers of the lines of printing.

\Vhen the wheel e is in its normal position, as shown in Fig. 2, with the ratchet g resting on the pin 2, the ratchet-wheel d,.andof course 5 of the wheel e in either direction by the ends engage said rattchet-wheel, and the lug i on the pillow-block b, all as and for the scribed.

" EMERY M. HAMILTON. WVitness'es'z? A. SLFITCH,

' V HENRY E ICHLHING.

purpose de- 10