US945987A

US945987A - Type-writing machine.

Info

Publication number: US945987A
Application number: US45612208A
Authority: US
Inventors: Louis Sholes
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-10-05
Filing date: 1908-10-05
Publication date: 1910-01-11
Anticipated expiration: 1927-01-11

Description

L. SHOLES.

TYPE WRITING MACHINE. APPLICATION FILED 0015, 1908.

945,987. Patented Jan. 11,1910.

2 SHEETS-SHEET 1.

L. SHOLES.

TYPE WRITING MACHINE.

APPLICATION FILED 0015, 1908.

945,987, I Patented Jan. 11,1910.

v 2 sways-sum 2.

3% Y L/ 615% wags/- State of \Visconsin,

' chine-frame in which the horizontal sliding LOUIS SHOLES, 0F MILWAUKEE,

WISCONSIN.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented J an. 11, 1916.

Application filed October 5, 1908. Serial No. 456,122.

To all whom it may concern:

Be it known that I, Louis Srronns, a citizen of the United States, and, resident of Milwaukee, in the county of Milwaukee and have invented certain nw'and useful Improvements in Typeriting Machines; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention consists in certain peculiarities of construction and combination of parts herein set forth with reference to the accompanying claims, its object being to simplify and cheapen the construction of type-writing machines, especially those of the front-strikev type-shiftspecies, as well as to provide for perfect alinement of the characters of the writing.

Figure 1 of the drawings is a diagram illustrating so much of a type-shift frontstrike type-writing machine as is necessary to illustrate my improvements, various parts of the machine being in section on a vertical plane transversely of .the type-bar segment and platen central of same; Fig. 2 a front elevation of a fragment of said machine partly in section; Fig. 3, a detail partly section view indicated by line 3- in Fig. 1, looking forward; Fig. at, a similar view indicated by line 4-3 looking rearward; Fig. 5, a detail plan view of a fragment of the machine partly in horizontal section.

Referring by letter to the drawings, A indicates a type-bar segment rigidly secured in connection with a suitably guided vertically adjustable carrier, the one B herein shown being provided with eye-lugs b engaged by vertical guide-pins 0T that are paired in connection with guide-standards of the mabase C of the carriage for .the platen D and other parts of the machine is guided, only one of said standards being herein shown.

Engaging a lateral inner pin d of the segmentcarrier is the forked end of a lever F fast on a rock-shaft (i to extend in opposite I directions therefrom, the. other end of the lever being a yoke in which a cross-pin e is provided. This cross-pin is normally in register with oppositely disposed hooks of a pair of vertical canrslotted fingers H, I, a stop-projection f of one of the fingers being normally under, and a similarprojection g fingers are engaged by drawings and pointed out in the rack-bar and the have sufficient curvature to provide for theof the other finger being normally over said cross-pin. The obtuse-angle cam-slots of the inner lateral pins h, i, of an arm j of the'machine-frame and the finger direct pivotal connection with a shift-key lever J, the finger I being in pivotal connection with one end of a lever K that has fulcrum connection with a rockshaft bearingarm of said machine-frame, the other end of this lever being connected by a link is with another shift-key lever L, said shift-key key levers of the machine being suitably fulcrumed and spring-controlled as is usual in the art.

Rigid on the rock-shaft G is a depending arm M having a curved and centrally notched lower end normally engaged by a springcontrolled latch N trunnioned in connection with lugs m of the machine-frame, this latch being in opposition to the shift-key levers under the same. A crank O of the rockshaft is connected to a counter-balance spiralspring P under tension in connection with the machine-frame.

'.he type-bar segment A is radially recessed and slotted at suitable intervals. Each of its recesses is intersected by a slot at, and engaging each recess is a'slide Q provided with a threaded aperture engaged a binding screw 0 movable in a radial guideslot p with which the segment is also provided in rear of said recess open thereto. By tightening the head of the screw against the segment, the slide Q is held in independently adjusted position. Each of the several slides is provided with a lateral pivot lug 0 that serves as a fulcrum for a type-bar R, the fulcrum-end of segment-slot adjacent to said guide. --"A segmental front rack-plate B of the carrier B constitutes a support for the upper free ends of all the type-bars of the machine.

While not so appearing in the diagram view Fig; 1, it is to be understood that the rods W will in practice proper support and guidance of the typebars (not shown) that ported in connection with the segment A in opposite directions from the one illustrated.

To properly aline a type-bar, the corresponding and secured in adjusted position by slide is adjusted in the se ent A l t -s bindlevers and the several typesaid bar being engaged with are pivotally suping-screw. Each type-bar is connected by a link-rod S with a shackle r screw-threaded thereon and engaged by a pin-end s of a rocker T loose ona stationary supporting rod U in the machine frame, said rocker being provided with an oblique cam-slot t. engaged by a lateral pin it of an arm 1) of a type-key lever- V, whereby there is direct horizontal pull of the link-rod on the typebar and good impact of said bar when its key-lever is depressed, said link-rod being guided between a pair of parallel stationary rods /V with which the segment-carrier B is provided. In practice, the stationary rods WV are in pairs at intervals of a circle.

The eye of each shackle r is elongated as best shown in Fig. 5, to prevent binding of said shackle on the end s of the corresponding rocker T when the segmentcarrier is adjusted out of normal position, either up or down. The pi11'ends of the several rockers are guided in recesses of a horizontal plate X connected at each end with an arm j of the machine-frame, and the shackles 1* are adjustable on their link-rods to facilitate a proper assembly of the machine.

A majority if not all of the type-bars in the machine are each provided with a plurality of type, ordinarily a lower case letter, an upper case letter and a numeral, punctuation mark or other arbitrary character, the segment carrier being normally in position to have the lower case letter of a type-bar -make its impact when a corresponding key-lever is depressed.

' By depressing the shift-key lever J the segment A with its carrier B is lifted from normal position to bring the lower type of the type-bars in position for impacting, and when the shift-key L is depressed, said segment and carrier are lowered from normal position to bring the upper type of the typebars in position for impacting. The depression of either shift-key results in freeing the latch N from the arm M of the rock-shaft G in order that the desired vertical adjust- 'ment of the segment and its carrier may take place through the medium of the lever F, this latch release and a movement of one or the other of the fingers H, I, to hodk on the cross-pin of the yoke of said lever taking place during the time the oblique portion of the cam-slot in the finger is moving on its stationary guide-pin. WVhen the segment and its carrier are lifted from normal position, the spring P contracts, and said segment and carrier return to normal position by gravity. When the segment and its carrier are lowered from normal position, the spring I is expanded, and its subsequent contraction causes a return of said segment and carrier to normal position.

A front plate Z is fastened by screws or otherwise to the se ent A and provided with central upwar ly extending right-anea5,es7

gle arms 20 between which the character end of each type-bar is guided when said typebar is on impact throw.

I claim:

1. In a type-writing machine, the combination of plural character type-bars, a vertically movable segment to which the type-- bars are pivotally connected, means for shifting-the segment from normal. position to which it is automatically returnable, horizontally guided link-rods in connection with the type-bars, rockers having pin-ends on which shackle-ends of the link-rods are ver-- tically guided, and key-lever mechanism for' ends of the link-rods are vertically guided,

and key-lever mechanism for actuating each rocker.

3. In a type-writing machine, the combination of a vertically movable segment and means for shifting the same from normal position to which it is automatically returnable, plural character type-bars each hav-- ing independently adjustable pivotal connection with the segment, horizontally guided linkrods in connection with the typebars, rockers having pin-ends 011 which shackle-ends of the link-rods are vertically guided, and key-lever mechanism for actuating each rocker.

4. In a type-writing machine, the combi= nation of a vertically movable segment provided with intersecting radial recesses and slots, a slide adjustable in each recess of the segment, means for securing the slide in adjusted position, a plural character typebar in pivotal connection with each slide, a horizontally guided link-rod in connection with each t pe-bar, rockers having pin-ends on which s tickle-ends of the link-rods are guided, key-lever mechanism for actuating each rocker, and means for shifting said segment from normal position to which it is automatically returnable.

5. In a type-writing machine, the combination of a segment pr lvided with intersecting radial recesses and slots as well as with other radial slots, slides adjustable in said recesses, binding-screws for the slides engaging the slots that intersect the recesses aforesaid, type-bars engaging the aforesaid other radial slots of the segment and being each in pivotal engagement with a slide, and means for actuating each type-bar.

6, In a type-writing machine, the combination of plural character type-bars, a segment with which the bars are pivotally con- V zontally movable carrier for th shifting the carrier from which it has subsequent link-rods in pivotal connected, a vertically segment, means for normal position to automatic return,

, nection with the type-bars, parallel rods in the carrier opposing the link-rods in opposite directions, rockers having pin-ends on which shackle-ends of the link-rods are vertically guided, and a key-lever mechanism controlling each rocker.

7. In a type-writing machine, the combination of plural character type-bars, a vertically movable segment to which the typebars are. pivota'lly connected, means for shifting said segment from normal position returnable, hori-' to which it is automatically guided link-rods in connection with rockers having pin-ends on of the link-rods'are veractuating the 9, In a type-writing machine, the combi- IlfltlOIl Of a vertically movable member, a.

rock-shaft-,a lever connecting the shaft with the member aforesaid, means in connection with the rock-shaft for counterbalancing the vertically movable member, lever-actuating fingers, and leverrmechanisms in connection with the fingers for shifting said vertically movable member in opposite directions.

I I l which the other Witnesses 1 10. In a type-writing machine, the combination of a vertically movable member, a rock-shaft, a lever connecting the shaft/with the member aforesaid, a lever-actuatin finger, a shift-key lever with which the is connected, an armin connection with sa d rock-shaft, and a latch normally'engaging the arm but arranged to be retracted preliminary to ashift of the aforesaid vertically movable member.

11. In a type-writing machine, the combination of a verticaly'movable'member, a rock-shaft in counterbalanced lever connection with the member aforesaid, a pair 0 shift-key levers, a hook-finger in direct. pivotal connection with one of the'shift-key levers and having cam-engagement with a stationary lug, a supplementary lever to shift-key lever is coupled, a cam-controlled finger similar 'to the one aforesaid pivotally connected to said supplementary lever, the initial working throw of one of the fingers being opposite that of the other for engagement with the rockshaft lever; and a latch automatically engageable with an arm provided in connection with the rock-shaft when said movable member is in normal position, the latch being in the downward path of the shift-key levers.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee in the .county of Milwaukee and State of \Viscousin in the presence of two witnesses.

LOUIS SHOLES.

GEORGE FELBER, N. E: OLIPHANT.

nger