US557910A - Carriage-shrft for type-writers - Google Patents

Description

(No Model.) 2 Sheets-Sheet '1.

A. W` STEIGER i CARRIAGE sEIET EDRv TYPE WRITERS.

No., 557,910. I PatentedApn 7, 11896; I

AN DREW RGRAHAMIHUI'OUTHQWASH ING'DNJIC.

` .-2 mamy-'sheet 2. A. W. 4STEIGBIII. CARRIAGE SHIFT FOR TYPE WRITERS.

M Mwmwmi m, .W m w; j, MT, mx A. 7 V tf1. n

w fc

ANDREW acn'himnPnmG-Lrmovwnsnmmpmnc,

(No ModeL).

NTTED ISTATES PATENT OFFICE.

ANDREV lV. STEIGER, OF BRIDGEPORT, OONECTICU'l, ASSIGNOR TO TI-Il JACKSON TYPEVRITER COMPANY, OF BOSTON, MASSACHUSETTS.

CARRIAGE-SHIFT FOR TYPE-WRITERS.

SPECIFICATION forming part of Letters Patent No. 557,910, dated April "7, 1896.- Application filed July 31, 1895. Serial No. 557,677. (No model.)

To 1f/ZZ whom, t may concer/1,: 'means of a rock-shaft 2, extendingfrom side Beit known that l, ANDREW W7. STEIGER, `to side of the machine and pivoted in the a citizen of the United States, residing in `brackets4 4. Bridgeport, in the county of Fairfield and A Backwardly extending arms 17 17 are 5 State of Connecticut, have invented certainA formed on the crank-arms 1G 16, and to these new and useful Improvements iu Carriageextending arms are connected rods 1S 18a by Shifts for Type-lVriters,of which the followmeans of pins 19 19, extending through the ing, taken in connection with the accompanycrank-arms and through slots in the upper ing drawings, is a specification. ends of the rods, these slots permitting the 6o ro This invention relates to type-writing mamovement of the shift-cranks 16 1G without ohines, and more especially to that portion of moving the eonnectingrods. The lower ends such machines known as the shift mechanof the connecting-rods 1S 18 are connected ism, whereby it is possiblev to use two types to levers pivoted at the rear end of the base or characters on each type-carrier and either 5 and extending forward to their operating- 65 r 5 letter or character may be impressed or printkeys 2O 2Oa in the keyboard of the machine, ed upon the paper on the carriage as the carthe key 20a being a locking shift-key and the riage is shifted up or down, carrying the key 2O a temporary shift-key. printing-point with it; and it further consists It will be readily seen that when either in a certain mechanism whereby the carriage, of the keys 2O or 2Oa is depressed the con- 7o 2o when shifted, may belocked in its shifted ponectingrod will be drawn down and the sition until released by a second movement, crank-arms will be thrown back, and with or the carriage may be shifted and return them the rail 15, carrying back the carriage, automatically as soon as the pressure is rethe latter swinging on the arms 11 11 andthe moved from the shift-key. This I accomplish yoke 10 to move the printing-point back to 75 2 5 by using two keys and a certain mechanism 4the new position required. Then the shiftherein more fully described. key is released, the carriage by means of its In the accompanying drawings, Figure 1 is own weight will fall forward to its original a plan View of a writing-machine embodying position. my invention. Fig. 2 is a side elevation of The shift-lock consists of a downwardly- 8o 3o the machine shown in Fig. 1, a part of the projecting arm or lug 21 on one of the shiftframe of the machine being broken away to cranks and a spring-actuated notched latch better illustrate my invention. Fig.` 3 is a or lever 22, pivoted to the frame of the maperspective view of the carriageframe and chine at 23, having a spring 24, attached to shifting mechanism detached from the mathe frame of the machine and pressing it S5 35 chine. against the arm 21. A notch 25 is made in Upwardly-projecting brackets 4 4 from the `the upper side of the lever 22 in such a posibase 5 support the type-basket 6 and ink-pad tion that when the carriage is shifted back it 7 and the carriage 8. The carriage 8 is supwill engage the arm 21 and hold it until report-ed by means of a rod 9, fixed to the brackleased. A pin 2G is fixed in the connecting- 9o 4o ets 44, and on which is a sliding yoke 10, carod 18 to project over the lever 22, so that pable of a movement from side to side of the when this connecting-rod yis drawn down to machine equal to the length of the line reshift the carriage it will bear upon and dequired to be written. Upwardly-extending press the lever 22, so that its notch 25 will arms 1l 11 from this yoke are pivoted to the not engage and lock the crank-arm 16. 9 5 45 ends of the carriage-frame 12 1 2 at 13 13. It will be readily seen that when the key The front of the carriage is supported by 2O is depressed the carriage will be shifted means of a short yoke 14, attached to the back, but by reason of the locking-lever beframe of the carriage and sliding on arod 15, ing depressed the shift will not be locked, extending from side to side of the machine and when the pressure is relieved from the roo 5o and supported on crank-arms 16 16, pivoted key 2O the carriage will return to its noilmal to the frame of the machine, preferably by position. It, however, the other shift-key 20 is depressed, the carriage will be shifted and the lever 22 will rise by means of its spring 24 and lock the carriage in its shifted position, Where it will remain until the key 2O is depressed with its pin 26 on the connecting-rod' 1S to force the lock-lever 22 out of engagement with arm 2l on the shift-crank.

I contemplate making the supportin g-points of the carriage 13 and l5, respectively, forward of the yoke and pivotal points of the crank-arms, so that the carriage Will move forward from its shifted position to its normal position by reason of gravity; but in lieu thereof I may substitute a spring, as shown at 27, attached to the frame of the machine and bearing against a lug on the shift-crank 16, so that it will tend to return the carriage to its norm al position after it has been shifted.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

l. In a type-Writin g machine, the combination of a paper-carriage, means for imparting a longitudinal step-by-stcp movement to said carriage, crank-levers provided with means for engaging said carriage, rods having a sliding connection with said crank-levers, keylevers to which said rods are connected, the sliding connections of said rods with the crank-arms permitting either rod to actuate said arms without disturbing the other rod, and a locking device actuated by one of said rods.

2. In a type-writing machine, the combination of a frame, a horizontal back rod, crankarms, a horizontal front rod supported on said crank-arms, a yoke adapted to slide on said back rod, a paper-carriage pivoted on said yoke and provided with means for engaging said front rod, a key-lever, and intermediate mechanism between said key-lever and front rod for changing the position thereof to shift the carriage.

3. The combination of a frame, a papercarriage, pivoted crank arms, one of said arms being provided with a lug, a horizontal rod supported on said crank-arms and engaging said carriage, a vertical rod connected with one of said crank-arms, a key-lever to which said vertical rod is connected, and a spring-actuated locking-lever provided with a notch adapted to engage the lug of said crank-arm for locking the carriage in shifted position.

4. The combination of a frame, a papercarriage, pivoted crank arms, one of said arms being provided with a lug, a spring-actuated latch adapted to engage said lug, two connecting-rods having sliding connection with said crank-arms, one of said rods being provided with means for releasing said latch, and shift-keys with which said rods are connected, the sliding connection of said rods with the crank-arms permitting the crankarms to be actuated under the influence of one of said rods Without moving the other.

5. In a type-Writin g machine, the combination of a paper-carriage, means for imparting a longitudinal step-by-step movement to said carriage, crank-levers provided with means for shifting said carriage, rods having a sliding connection with said crank-levers, keylevers to which said rods are connected, the sliding connection of said rods With the crankarms permitting either rod to actuatc said arms Without disturbing the other rod, and a locking device for holding the carriage in shifted position, one of said rods being provided With a pin for engaging said locking device.

6. The combination of a paper-carriage, means for engaging said carriage for shifting it, comprising a crank-lever provided With a lug, a spring-actuated notched latch for engaging said lug, and a connecting-rod connected with said crank-lever and provided with a pin for engaging said latch.

In testimony whereof I have hereunto subscribed my name this 18th day of July, A. D. 1895.

ANDREW' lV. STEIGER. Vitnesses:

CHAs. A. KELLoGc, CHAs. l?. Hovvn.

Images