US554660A - Albert b - Google Patents

Description

(No Model.)

A. B. DICK.

TYPE WRITING MACHINE.

- Patented Feb. 18, 1896.

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NITEv STATES L ATENT OFFICE.

ALBERT B. DICK, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE A. B. DICK COMPANY, OF SAME PLACE.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 554,660, dated February 18, 1895.

Application filed August 30, 1893. Serial No. 484,354. (No model.)

To all whom t may concern:

Be it known that I, ALBERT B. DICK, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Operating-Boards for Type- IVriting Machines, of which the following is a specification.

The obj ect of my invention is a simple, compact, and eficient operating-board for typewriting machines, whereby rapidity of movement and correct location of characters are secured within the least possible space.

My invention :relates particularly to that class of type-writing machines where the selection of the printing character is made by one movement and the printing operation by another.

In carrying out my invention I employ a sector-shaped plate provided with a slotted portion struck on the same arc as the said sector, and as the shifting index a lever having a central movement coincident with the center from which the said sector has been struck, the movement of said lever being beneath the slotted sector and said lever being formed or provided with portions, one for the outer line of said sector, another for the inner line thereof, and a third working in the aforesaid arc-shaped slot, each of the said portions being on a level with the surface of said sector and preferablyhaving its surface adjacent to the edges of the plate or slot rounded to conform to the shape of such edges.

In the accompanying drawings, forming a part of this specification, Figure I is a plan view of my improved Operating-board, and Fig. 2 is a section thereof taken on the line 2 2, Fig. l.

I have not shown said index-board as embodied in a complete machine, as it will be obvious that the invention may be employed with any machine employing a type-wheel, the printing movement being adapted to the present operating-board.

In the drawings, A represents the bed-plate of the machine.

B indicates a type-Wheel, C a gear on the shaft supporting and operating said typewheel, and D a sector-gear by the movement of which the type-wheel is rotated to bring the desired type into printing position.

Supported upon the bed A of the machine is the slotted sector E, which may be a thin plate of metal or other suitable material.

This plate is in the shape of a segment of an annulus and is provided with an arc-shaped slot F, as shown. Upon the inner portion G of the plate E, I prefer to locate the. figures and characters, as they are less used than are 6.o

the letters of the alphabet. I have shown twenty-six figures and characters in all. Upon the outer portion II, I prefer to locate the letters of the alphabet. Opposite each figure and character on the portion G, I provide a 6 5 division-lines K being on the outer line of 7o said portion II.

Rigidly connected with the sector D, or with the pin or bolt connected with said sector, is the index-lever L. This index-lever, as shown in Fig. 2, passes beneath the slotted sector E and is supported in its movement by the projection m rising from the bed-plate A. Upon the upper surface of this lever are cast or otherwise formed three portions N, O, and

P, on a level with the face'of the slotted sec- 8o tor. The portion N is designed to move along the outer line of the portion G and is provided with an index-line n, and also, if desired, with the words Figures and characters or other legend to designate its employment.

The portion O is provided with an index-line o and may have the word Caps or Capitals to indicate its employment. The portion P is provided with an index-line p and may have the word Small to indicate its em- 9o ployment. The index-lines fn, op are, one with respect to the other, out of line.

The operation of the device is as follows: Suppose it is desired to print the gure 1.

The lever L is moved so that the index-line n coincides with the division-line z' opposite iigure 1, while the index-lines o and p will not coincide with any of the division-lines j k. The movement of the lever L will in the wellknown manner rotate the type-wheel B and Ioo fore and an index-line 0 on the portion O is brought into coincidence with the divisionline 7' opposite the letter X, and by this movement capital X will be brought into printing position. To print small X the index-linc p is brought into coincidence with the division-line k opposite the letter X on the slotted sector, and the letter small X will be brought into printing position by the movement of the type-wheel.

Of course, the printing characters on the type-wheel will be arranged in position corresponding to the position of the same on the slotted sector, or vice versa. Any suitable mechanism may be employed to effect the printing when the desired printing character 'is brought into printing position, it being understood that the selection of characters is performed by one movement,while the operating mechanism to effect the printing, after a type is brought into position, is effected by another.v In a less adaptable form of machine than that shown in the drawings the portion O may be provided with two indexlines-as, for instance, with an index to take the place of the index n on the portion N but this will not take the arrangement out of the scope of my invention.

I claiml. The combination 'with a slotted sector of a series of characters arranged along one side of the slot and a series of letters arranged along the other side thereof, of an index-lever provided with three division-lines, one division-line arranged adjacent to the characters and the other two division-lines arranged adjacent to the letters, said division-lines being out of line, one with the other, substantially as set forth.

2. The combination with `a slotted sector provided with characters and letters, of an index-lever provided with a division-line for the characters and two division-lines for the letters, said divisionlines being out of line, one with the other, substantially as set forth.

3. The combination with a slotted sector provided with characters and letters, of an index-lever movable beneath said sector and having portions operating on a level with the top of said sector, one of said portions operating through the slot therein and two of said portions operating one on each side of said sector, substantially as described.

This specification signed and witnessed this 26th day of August, 1893.

ALBERT B. DICK..

XVitncsses:

EUGENE CONRAN, Gno. B. CRoNK.

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