US877179A - Stenographing-machine. - Google Patents

Description

No. 877,179. PATENTE'D JAN. 21,1903.

R. DUGHBSNE. I

STENOGRAPHING MACHINE.

PP ATION FILED R.16,1907. A n MA ZSHEETS-SHEET 1,

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No. 877,179. PATENTED JAN. 21, 1908. R. DUOHESNE.

- STENOGRAPHING MACHINE.

PPLIOATION FILED MA .16fl907. A 2 SHEETS-SHEET 2.

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WITNESEEE psi srarns ATENT OFFICE.

ROBERT DUcnEs'NE, or PARIS, FRANCE, ASSIGNOR 'ro LA SOOIETE LA s'rENornILE BIVORT, or rams, FRANCE.

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Specification of Letters Patent.

Patented Jan. 21, 1908.

Application tiled March 16. 1907. Serial No. 362.740-

the paper and the unwinding of the inking ribbon. I

In order that the invention may be readily and clearly understood, the accompanying drawings show by Way of example the stencgraphing machine which forms the object of the invention.

Figure 1 is a side elevation. Fig. 2 is a plan view. Figs. 3 4 and 5, relate to details of the mean. for operating the paper feed roller and for unwinding the inking ribbon.

This machine comprises a series of levers 1 of steel or other appropriate metal, each supporting at one end a key 2 carrying the indication of a letter or of a combination of letters. These'levers pass over knives 3 and terminate beneath strikers 4 constituted by rods of steel or other appropriate metal, and held against the levers 1 by means of spiral springs; these strikers, which are guided in plates 6 preventing their deviatio'nmarrying hammers 5 at their upper extremity.

The letters or types or combination of letters or types used are formed in relief in one and the same plate 7 fixed beneath a cross piece 8 which is itself attached to a rocking beam 9 pivoted at 19 and connected by a lever 12 to a special key 11, termed the f pedal.

When the keys 2 are depressed, the strikers 4 rise and the hammers 5 apply the paper against the letters 7. The impression is offccted in the manner hereinafter explained.

When the key 1 1 is depressed, the part 9 in rocking around its pivot 10 brings one or other of the rows of letters en aved on the part 7 above the hammer. Be ow the lett' on the part 7 there is arranged an inking ribhon which passes over a guide roller 13 and is wound upon a spool 14 forming one with a ratchet wheel 15. The band of paper passes beneath the ribbon and a piece of india'rubber interposed'between the hammers 5 and the paper softens the pressure producedby the levers 1. The spoolcd paper is placed on a roller 16 rotating arounda shaft held ina bracket 17. The paper passes over a guide roller 18. Thence it passes beneath the letters, in passing beneath the inking-ribbon; it then passes between the rollers 19 and 20 and proceeds to the winding up drum 21. .lVhen the roller 19 rotates in the direction indiv cated by the arrow in Fig. 1, it carries the paper between itself and the roller 20. At

the same time, a pulley 22 fixed on the shaft of the roller 19 drives the pulley 23 by means of a belt preferably formed by a piece of india rubber or by a spiral spring, the extremities of which are united.

When one of the keys 2 is depressed, or several of these keys are depressed simultaneously, they depress a universal bar 24 mounted upon a cross piece 25 which is capable of rocking between the trunnions 26 The rocking movement of theuniversal bar 24 causes the roller 19 to act by meansof a ball box as will be hereinafter described.

A special key 27 termed the pedal pivoted at 28 enables the cross piece 24 upon without depressing-the levers of the letters. By using the pedal 27., the roller 19 21 also, so that the paper may be fed forward without produci an impression.

Operation of the fee roZZer.-Whenthe keys 2 for the letters aredepressed, or the pedal 27, this pressure is transmitted by the universal bar 24 to a rod 29, Fig.3, held vertical by bearings 30. This rod carries two studs 31 and 32. The stud 31 produces the oscillation, by means of a slot 33, Fig. 4, into which it enters, of the disk 34 loose upon the shaft of the roller 19. The disk 34 carries ratchet teeth in which balls or cylinders 35 are lodged. This disk 34 enters a cup 36 fixed to the shaft of the roller 19, and carg- 100 tobe acted it ocking or rom 11.0

85 may berotated, and consequently the roller produces the paper feed cabses'tlie li kin ribbon to begtvoulnd up or ti) -:nw1nd.

claim: v

1. In a'stenogra-phing machine, the combination, with the key'levers, of verticallyguided strikers abutt' against the levers at the lcwer ends of the ormer, hammers car ried at the upper ends of said strikers, a rocking beam PIVOtGd' below said hammers and having a cross-piece overha ing the latter,

.a. type carrying plate mounte on said crossnqpiece; an inking ribbon, and means whereh 15p.

' 2. In a. stenizfirafihing machine, the comsaid-beam may be rocked by a finger-stroke bination, with c ty-levers, and the printg thus described inf fii lx ing mechanism, of a universal bar actuated By the key-levers, a feed-roller for the pa er, a .cup fixed on said feed-roller at oneen a disk within said cup having a slot and ratchetteeth, a red actuated by said universal bar and having a stud entering the slotin said disk, and balls in said cup cobperating with said ratchet-teeth to cause the feed of said roller in'only one direction.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

ROBERT DIUOHESNEK Witnesses:

EMILE LOBUT, DEAN B. MASON.

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