US1009305A

US1009305A - Ribbon-carrier for type-writing machines.

Info

Publication number: US1009305A
Application number: US64238211A
Authority: US
Inventors: Juan Harper
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-08-04
Filing date: 1911-08-04
Publication date: 1911-11-21
Anticipated expiration: 1928-11-21

Description

J. HARPER.

RIBBON CARRIER FOR TYPE WRITING MACHINES.

APPLICATION FILED AUG. 4,19111 "1,009,305, Patented Nov. 21, 1911.

Reveal Zn 7% WW/ We WM UNITED STATES PATENT OFFICE.

JUAN HARPER, OF SANTIAGO, CHILE.

RIBBON-CARRIER FOR TYPE-WRITING- MACHINES.

To oZZ- 'whom it may concern: 4 I 1 Be it known that I, JUAN HARPER, a cit-izen of the Republic of Chile, and resident of Santiago, Chile, have invented a new and useful Ribbon-Carrier for Type-Writing 4 Machines, of which the following is a specification.

My invention relates to a ribbon carrier for typewriting machines, with. the objectin view of providing a carrier which will permit the ribbon to be shifted edgewise-to bring longitudinal sections of the ribbon into position to receive the immediate im-.

pact of the type. p p

My invention is particularly well adapted to use in connection with what is known in the art as .the Oliver typewriter, although I do not wish to limit myself to its use with this particular machine.

In the accompanying drawings, Figure 1 is a top plan view of the ribbon carrier as it appears in use. Fig. 2'is a view of the same in side elevation. Fig. 3 is a longitudinalsection in the plane of the line A-A of Fig; 1. Fig. 4is a bottom plan view. Fig. 5 is a transverse section in the plane of the line- BB of Fig. 2. Fig. 6 is a top plan view of a modified form. Fi 7 is a longitudinal section in the plane 0 the line C-C of Fig. 6, and Fig. 8 1s a bottom plan view of the same.

The support for the ribbon carrier proper is here shown as the Oliver ribbon carrier support and consists of parallel links 1 and 2fulcrumedin a support 3 and connected at their upper ends by a plate 4. This forms no part of my present invention except so far as it serves as a suitable support for the ribbon carrier proper.

The ribbon carrier proper consists of a plate 5 from one end of which project branches 6 and 7, the outer-ends of which areturned over and' under, as-shown at 8 and 9 to form elongated openings 10 through which the ribbon 11 passes. At or near its opposite end, the plate 5 is clamped to the support 4 by means of a T-bolt- 12, the head 13 of WhICh CIOSSQS an elongated slot 14 in the support 4, and the threaded end of which receives a milled thumlTnut 15, as clearly shown in the several figures. The plate 5 is further guided on the support 4 by means of a T-screw 16, the head- 1 of WhlCh overlaps the walls of an elongated slot 18, see Fig. 4, and the shank of which is squared, as shown at 19, to prevent the On the plate 5, there' areindicator marks,

denoted by 20, 21, and an index pointer 22,

uprising from the support 4,"and reaching over the edgeof'the plate 5, serves to lock the ribbon carrier in the position desired to shift the ribbon laterally from one position to. another,ithe twoositions being. shown in Fig. 1, the one in ll lines and theother in-dotted lines. I

The modified form'shown in Figs. 6 to 8 inclusive, shows the body of the carrier consisting of a plate 23 provided with branches as hereinbefore explained and having secured to its upper face a spring tongue 24, the heel end of which is held securely to the plate 23 by means of a T-rivet 25, the head of which overlaps the walls of an elongated slot 26 in the support and the shank of which is squared to slide along the slot 26, the free end of the said spring 24 being provided with a pin 27 set therein, which pin projects downwardly through the plate 23 and is adapted to enter one or another of the three

holes

28, 29, 30, formed in thesupport. These three

holes

28, 29, 30 correspond to the three positions indicated by 'the'marks 31, 32, 33, on the upper face of the plate 23 and serve to adjust the ribbon 11 in position to have the type strike it along a central line and along lines on either side of a central line. In this form theindex pointer 34 and an overlapping lip or guide 35, see Fig. 6, are formed at the opposite ends of a narrow strip of material 36 which is secured to the under side of the support by means of screwsc37, 38. It is obvious that the structure shown in Figs. 1 to 5 inclusive will admit of shifting the, ribbon 11 laterally not only into the two positions indicated by the marks 20 and 21 on the face of the plate, but also into as I many positions as may be desired since the

slots

14 and 18 are continuous instead of being articulated as in the modified form.

The ribbon carrier 'may' be detached at pleasure when desired, in the first instance by removing the milled nut 15 and withdrawing the screw-bolt 12, when the support may be swung at an angle of 90 to permit the head 17 of the guide screw to pass up wardly through the slot 18. Iii the modified form the piece 36 may be removed by unscrewing the screws 37, 38 and then by withdrawing the pin 27, the carrier may be swung to permit the head of the guide screw or rivet to pass through the slot 26.

What I claim is:

1. A ribbon carrier for typewriting machines comprising a carrier proper provided with loops for receiving the ribbon, a support for the carrier provided with an elongated slot, a T-shaped guide projecting from and fixed to the carrier proper for directing the carrier proper along its support and holding it on its support and a 'devicefor locking the carrier proper in different adjusted positions.

2. A ribbon carrier for typewriting machines comprising a carrier proper provided with arms for receiving the ribbon and with a scale to indicate dili'ere'nt' adjustments in JUAN HARPER.

Witnesses JOHN R. BEAVER, GEORGE PROUD.