US461553A

US461553A - Type-writing machine

Info

Publication number: US461553A
Authority: US
Publication date: 1891-10-20
Anticipated expiration: 1908-10-20

Description

l (No Model.) 1 2 sheets-sheet 1.

A. W. STEIGER.

TYPE WRITING MACHINE.

No. 461,553. Patented Oct. 20; 1891..

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11. W. STEIGER. -TYPB WRITING MACHINE. No. 461,553. Patented 001.2111891.

ATENT UNITED. STATES ANDREIV lV. STEIGER, OF NEV YORK, N. Y., ASSIGNOR TO THE YOST IVRITING MACHINE COMPANY, OF NEW YORK. I

TYPE-WRITlNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 461,553, dated October 20, 1891.

Application filed May 6, 1889. Serial No. 309,683. (No model.)

To al? whom it may concern." ing-rods, which are disposed in a circle, as

Be 1t known that I, ANDREW WV. STEIGER,` shown particularly at Figs. 2 and 3.

a c1tizen of the United States, and a resident 3 3 represent the key-levers, arranged beof New York city, in the county of New York neath the bed plate-and parallel-to each other. 55 and State of New York, have invented certain i denotes the pivot or vt'ulcrum of the keynew and useful Improvements in Type-Writlever, the outer or forward end of which is ing Machines, of which the followingisaspeciprovided with a iingerkey or head 5. fication. In the machine represented there are eighty My invention in type-writing machines has key-levers 3 3 and eighty connecting-rods 2 2. 6o to for its main object to provide what is known The connecting-rods being arranged in a ciras straight stringing -that is to say, a macle and the key-levers in equidistant and parchine in which the key-levers are arranged allel lines, some of the key-levers on the right side by side and parallel and in which the and some on the left must be located in planes rods which connect the key-levers With the wholly exterior to the circle occupied by the 65 I5 type-carriers are arranged in vertical planes connecting-rods, for it will be seen that the or perpendicular to the key-levers or the bed connecting-rods on the right and on the left orbase of the machine; and myinvention con hand side of the machine occupy so nearly sists in combining sub-levers with certain of` -the same vertical longitudinal planes that it the key-levers and connectingrods, all as will is impossible to arrange their respective key- 7o 2o be hereinafter more fully described, and parlevers directly opposite or in line.

ticularlypointed out in the appended claims. In order to connect the levers which lie out- In the drawings accompanying` this specifiside of the series of connecting-rods with their cation, Figure 1 is a central vertical section respective connecting-rods some form of latof a'portion of a type-Writing machine erneral oifset or cross connection must be pro- 75 bodying my invention. Fig. 2 is a plan view, vided. For this purpose I employ a series ot' partlyin section, taken above the bed-plate sub-levers. Referring particularly to Figs. 1 and sub-levers to show more clearly the conand 2, the sub-levers designated by the nustruction and arrangement ot" the parts inmeral 6 are of different lengths and are radivolving my invention. Fig. 3 is a plan view ally arranged. The inner ends of these 8o 3o of one modification of my invention. Fig. 4 sub-levers 6 G are fulcrumed at 7 7 in astand isa similar view of another modication. Fig. or bracket upon the bed-plate. The fulcrum 5 is a vertical section through the bed, showends of the sub-levers are preferably formed ing a finger-key, key-lever, and the coupling with round disks 8, which are set edgewise used between the key or main lever and its between two annular grooved plates 9 and 10, 8 5

sub-lever. the former serving as a support for the sub- In the several views the same part will be lever ends and the latter as a cover therefor found designated by the same letter or nuto prevent accidental displacement. The meral of reference. cover 10 is preferably secured in place by a A denotes the paper carriage, having, as nut 11, screwed onto a threaded shank 12, pro- 9o 40 usual, a cylindrical platen B. jecting through the centersof the plates 9and C isatop plate supporting an inking-pad D. 10. The outer ends of -the sub-levers are E is a link or lever pivoted to the top plate. passed through elongated eyes 13 in couplings F is another link orleverpivoted to a stand- 14:, which extend vertically through the baseard at the center of the bed-plate G. plate and connect at their lower ends to the 95 H is a type bar or carriento which are pivrear ends of those key-levers which l lie outoted at d and Z), respectively, the links E and side the circle of connecting-rods. Between.

F. The links E extend all around the circuthe ends of each sub-lever is connected, as at lar top plate, and in practice the machine is 15, the lower end of one connectingrod 2, provided with as many such links or levers whose upper end is connected to the link or loo 5o as there are finger-keys and key-levers. lever E, as at 16. At Fig. 2 the sub-levers are made o f different lengths and are radi- 2 2 represent vertically-arranged connectally arranged. This construction and arrangement of the sub-levers I deem preferable, and in practice the machines are made in this manner.

The operation will be readily understood. A depression of the finger-key 5 Will elevate the rear end of the key-lever 3, which will lift the coupling 14. The coupling is guided in a hole in the bed-plate, and as it rises lifts the outer end of the sub-lever 6 and vibrates it about its fulcrnm or pivot, as shown by the dotted lines at Fig. 1. During the ascent of the sub-lever the connecting-rod is pushed up by it and the links E and F are vibrated in opposite directions and the type c at the end of the type-carrier is brought to the printingpoint and caused tomake its impression on the paper on the platen. lVhen the pressure is released, the parts return to first position by gravity; but, if desired, a spring suitably located may be provided for assisting the parts back to their initial positions.

Instead of the specific type-moving devices shown, the links or levers E may be made longer and provided with type, as in machines in common use.

In the modification shown at Fig. 3 the sublevers 6 are pivoted or fnlcrumed upon a common straight bar or pin 17, running longitudinally of the machine and arranged in the center ot the circle described by the connecting-rods. These sub-levers extend outwardly from each side of the common pivot in parallel lines beyond the seriesof connecting-rods. The connecting-rods on the right and on the left are connected to the sub-levers after the manner illustrated at Fig. 1, and the tree ends of the sub-levers are by means of vertical couplings or links 14 connected to the keylevers 3 beneath the bed-plate.

In the modification shown at Fig. 4 the sublevers are pivoted or fulcrumed upon a common pivot 17, as in Fig. 3, but are arranged exteriorly of the circle formed by the series of connecting-rods. These sub-levers are connected to the key-levers in the manner explained of the others. In Figs. 1, 2, and 3 the sub-levers are leversvof the second kind or order, and in Fig. 4 the sub-levers are levers of the third kind or order. InV each case the sub-levers are preferably mounted or arranged above the bed or base plate.

In practice usually from ten to twenty sublevers on each side will be required, according to the diameter of the circle formed by the connecting-rods and the distance apart of the key-levers. All of the remaining keylevers, it will be observed, may run directly to their respective connecting-rods, as indicated at Figs. 2 and 3 by the parallel dotted lines, which represent the key-levers.

By my invention, the connections being made in the form of levers,(whicl1 readily turn upon their pivots or fnlcrums,) the force applied to the finger-keys is freely transmitted through the sub or auxiliary levers to the connecting-rods, and so easily that in the operation of the machine the diterence in touch between the key-levers not connected to sublevers and those connected thereto is wholly imperceptible to the operator.

Vhat I claim as new, and desire to secure by Letters Patent. is-

1. In a type-writing machine, the combination, with type bars or carriers, of vertical connecting-rods arranged in a circle, horizontally-arranged parallel key-levers extending on each side beyond the circle of vertical connecting-rods, horizontally-arranged sublevers connected to the side connecting-rods and extending laterally and connected to those key-levers which lie beyond the circle of vertical connecting-rods, substantially as set forth.

2. In a type-writing machine, the combination, with type bars or carriers, of vertical connecting-rods arranged in a circle, horizontally-arranged parallel key-levers extending on each side beyond the circle ot' vertical connecting-rods, horizontally-arranged sublevers fulcrumed centrally of the machine and extending laterally outward on each side beyond the circle of vertical connecting-rods and connected each at one point to one of the side connecting-rods and at another point to one of those key-levers which lie beyond the circle of connecting-rods, substantially as set forth.

3. In a type-Writing machine,the combination, with type bars or carriers, of vertical connecting-rods arranged in a circle, horizontally-arranged parallel key-levers extending on each side beyond the circle of vertical connecting-rods, horizontally-arranged sublevers tulcrumed centrally of the machine an d radiating outward on each side beyond the circle of vertical.connecting-rods and connected each at one pointto one of the side connecting -rods and at another point by means of a vertical coupling to one of those key-levers'which lie beyond the circle of connecting-rods, substantially as set forth.

4. In a type-writing machine comprising a series of type lever' devices and vertical thrust or connecting rods therefor, all in circular arrangement, the combination, with those connecting-rods which are at the transverse portion of their circle of arrangement, of' levers suitably fnlcrumed and having an engagement for a lever action with the lower ends ot' said connecting-rods and suitably transversely extended from such engagement, and the key-levers arranged longitudinally and at desired distances apart, connecting, respectively, with said transversely-extended levers.

Signed at New York city, in the county ot' New York and State of New York, this 15th day of December, A. I). 1888.

ANDRElV lV. STEIGER.

lVitnesses:

JACOB FELBEL, Trios. B. CLIFFORD.

IZS