US766371A - Carriage-shifting mechanism for type-writers or like machines. - Google Patents

Description

L. MYERS. CARRIAGE SHIFTING MECHANISM FOR TYPE WRITERS OR LIKE MACHINES.

APPLICATION FILED APILZ. 1904.

N0 MODEL.

WWWHHHHHHHHHHHHHHH'U IHH|1uu--- INVENTOR ATTORN EYS UNITED STATES Patented August 2, 1904.

PATENT OFFICE.

LOUIS MYERS, OF NEIVARIC, NEW JERSEY, ASSIGNOE TO UNDERIVOOD 'ITYPEWRITER COMPANY, OF NE\V YORK, N. Y., A CORPORATION OF N EIV JERSEY.

CARRIAGE-SHIFTING MECHANISM FOR TYPE-WRITERS 0R LIKE MACHINES.

SPECIFICATION forming part of Letters Patent No. 766,371, dated August 2, 1904.

Application filed April 2, 1904:. Serial No. 201,251. No model.)

Be it known that I, Louis MYEus. a citizen of the United States, and a resident of Newark, county of Essex, State of New Jersey, have invented certain new and useful Improvements in Carriage-Shifting VMechanisms for IIype-IVriters or Like Machines, of which the following is a specification.

My invention relates to type-writers and other machines in which there is employed a carriage capable of being shifted to different positions, as for the printing of upper. and lower case characters.

The object of my invention is to provide a simple and efljcient mechanism for readily shifting the carriage.

Other objects of my invention will appear from the annexed description and the features of novelty pointed out in the appended claims.

In the accompanying drawings, which illustrate a typical form of my invention, Figure I is a cross-section of a portion of a typewriter embodying my invention. Fig. .2 is a sectional view of the same on line 2 2 of Fig. I, and Fig. 3 is a section on the line 3 3 of Fig. 1.

A indicates the frame of the machine, which may be provided with a recess into which is adapted to fit a support B. The said support B may be secured in the recess of the frame in any convenient manner. Upon the rear of the support B is secured a rail or track O, provided with a Vgroove O.

I) is a mating rail or track upon the rear of the carriage E and is also provided with a V- groove I). Balls F are arranged to travel in the grooves U and I). The carriage may be of any suitable construction. I have therefore deemed it unnecessary to illustrate the details of the same. The track or rail D is spaced from the rail C sufiiciently to enable the balls Fto act as a fulcrum when the front of the carriage is raised or lowered. At the front portion of the support B is secured a bar (i, extending entirely across the machine and having an upright portion G.

H is a movable track, provided at intervals with pins H, which extend downwardly from said track through openings in the bar Gr. To the bottom of the bar (i are secured flat springs 5 (i one for each pin H, said springs serving to exert an upward pressure on the pins and the track H. The pins H further act as guides for the said track H. Springs of a different character may be employed.

J is a track or rail secured to the carriage E, and I represents balls traveling on the track H and also engaging the track J of the car riage and the upright portion Ur of the bar G.

K is the shift-rail and is provided with a V- groove K, arranged opposite to a V-groove J in the bottom portion of the bar J. In these two grooves J and K are adapted to travel balls L. One of the surfaces engaged by the balls L might be fiat instead of V- 5 shaped. To the rear of the shift'rail K is socured one arm of a lever M, fulcrumed at M upon the support B and having a downwardlyprojecting arm N.

O is the usual shift-key lever, fulcrumed at 7 0 upon the frame of the machine and having the usual shift-key P. Thus as the operator presses the shift-key P it will cause the lever O to rock the arm N on its pivot M and through the medium of the lever M, connected to the shift-rail K, will raise the said shiftrail and with it the track J, the balls F acting as a fulcrum during this operation. As the track J is raised the springs (i will press the pins H, the track H, and the balls I up- 30 ward. Thus the balls I will always follow the track J and do away with any tendency to bind which might exist otherwise. Furthermore, the relation of the balls I and the balls L to the rail J will always be such as to 5 insure a perfect ball-bearing for the carriage E in either of its positions. The track H and balls I form an auxiliary carriage-support.

Various modifications may be made without departing from the nature of my inven- 9 tion.

W hat I claim, and desire to secure by Letters Patent, is

1. In a type-writer or other machine, a frame, a carriage, a ballbearing located between the frame and the rear portion of the carriage, another ball-bearing located between the frame and the carriage in front of the first ball-bearing, and a third ball-bearing located between the two first-named ball-bearings and means for swinging the carriage about the rear ball-bearing as a fulcrum.

2. In a type-writer or other machine, a frame, a carriage, a ball-bearing located between the frame and the rear portion of the carriage, a second ball-bearing located between the frame and the carriage, and a third ball-bearing located between the two firstnamed ball-bearings, means for swinging the carriage about the rear ball-bearing as a fulcrum, and a device for causing the second ballbearing to follow the carriage as the said carriage is raised.

3. In a type-writer or other machine, a frame, a carriage, a ball-bearing located between the frame and the rear portion of the carriage, a second ball-bearing located between the frame and the carriage in front of the first ball-bearing, a shift-rail for shifting the carriage, a ball-bearing located between the said shift-rail and the carriage and means connected with said shift-rail for swinging the carriage about the rear ball-bearing as a fulcrum.

4:. In a type-writer or other machine a frame, a carriage, ball-bearings located between the frame and the carriage, a shift-rail, a ball-bearing located between the shift-rail and the carriage, means connected with said shift-rail for causing the carriage to swing about certain of the balls as a fulcrum, and a device for causing certain of the balls to follow the carriage as said carriage is swun 5. In a type-writer or other machine, a frame, a carriage capable of being shifted to difi'erent positions by a movement transverse to its feed movement, rolling bodies engaging said carriage, a track carried by the frame movably and engaging said bodies, means for causing said track to follow the carriage in its transverse movement, and means, independent of said track, for shifting the carriage from one position to another.

6. In a type-Writer or other machine, a

frame, a carriage capable of being shifted to diflerent positions by a movement transverse to its feed movement, two sets of rolling bodies engaging said carriage, two independent tracks carried by the frame movably and each engaging one set of said rolling bodies, mechanism for moving one of said tracks to shift the carriage, and means for causing the other track to follow the shifting movement of the carriage.

7. In a type-writer or other machine, a frame, a carriage capable of being shifted by a movement transverse to its feed movement, means for shifting the carriage, an auxiliary carriage-support, independent'of the carriageshifting means, movably carried by the frame, and springs for causing said auxiliary support to follow the shifting movement of the carriage.

8. In a type-writer or other machine, a frame, a carriage, bearing-balls interposed between the frame and the carriage, a shifting device arranged to swing the carriage about'said balls as a fulcrum, an auxiliary carriage-support, independent of the carriageshifting means, movably carried by the frame, and means for causing said auxiliary support to follow the shifting movement of the carriage. Y

9. In a type-writer or other machine, a frame, a carriage, bearing-balls interposed between the frame and the carriage, a shifting device arranged to swing the carriage about said balls as a fulcrum, an auxiliary carriage-support, independent of the carriageshifting means, movabl y carried by the frame, and means for causing said auxiliary support to follow the shifting movement of the carriage,the said shifting device being arranged to engage the carriage between the bearing-balls and said auxiliary support.

In testimony whereof I have hereunto set my name in the presence of two subscribing Witnesses.

LOUIS MYERS.

Witnesses:

JOHN LOTKA, EUGENE EBLE.

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