US863056A - Type-writing machine. - Google Patents

Description

PATENTED AUG. 13, 1907. G. W. DONNI'NG. v TYPE WRITING MACHINE; APPLICATION FILED SEPT. 23. 1901.

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PATENTED AUG 13, 1907.

G. W. DONNING. 'T YPE WRITING MACHINE.

APPLICATION FILED SEPT. 23.1901.

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m w a UNITED STATES PATENT OFFICE.

GEORGE W. DONNING, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO HARRY-T. AMBROSE,

OF ORANGE, NEW JERSEY.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Aug. 13, 1907.

To all whom it may concern:

Be it known that I, GEORGE W. DONNING, a citizen of the United States, residing at East Orange, in the c'ountyoi Essex and State of New Jersey,have invented certain new and useful Improvements in Type-Writing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in the method of mounting spindles for carrying paper or carbon rolls used in connection with typewriting machines, particularly that class oi'typewritors known as flat platen or commercial machines.

The invention may be said to reside in a novel form of locking member for preventing accidental removal of the spindles from slotted hearings, in which said spindles are mounted for convenience of access.

In the drawings: Figure l is a perspective view of the basal portion of a flat platen machine, associated with which is a series of paper rolls and their supporting spindles; Fig. 2 is a front elevation of the rolls and spindles mounted in supporting standards; Fig. 3 is a side view of one 01' the standards, showing the slotted bearings; and Fig. 4 is a side view of a locking plate used in connection therewith.

Referring to these drawings, A indicates the flat platen of a typewriter, and B longitudinal track rails upon which travels the writing mechanism, not illustrated.

For the purpose of delivering paper and carbon sheets over the platen, rolls may be suitably arranged. A carbon roll G has been shown at one side of the platen, and a series of paper rolls D, one above the other, at the rear of the platen. These rolls D are carried by spindles O, with which may cooperate suitable collars E for the proper retention of the rolls.

The spindles are to be supported in suitable members, and these have been illustrated as constituting upright standards H, through which the ends of the spindles pass. Without one of the standards, the ends of the spindles are conveniently provided with gears h which may mesh with intermediate gears 7a, or other. devices may be resorted to for procuring any desired mode of rotation of the spindles and rolls.

The hearings in one or both of the standards maybe slotted for facilitating the positioning and shifting of the spindles. 'In Fig. 3 is illustrated one of the standards provided with horizontally slotted bearings F, within which the spindles may readily be inserted. In 0011- 5Q nection with such bearings, there is to be employed a locking plete,o r plates 1?, to prevent accidental removal of the spindles. It is obvious that there might be a separate locking plate for each spindle end; but it is preferred, as shown in Fig. 4, to provide a single lock ing plate, having as many retaining slots G as there are slotted bearings. These slots G are curved, inclined, or otherwise irregular, preierably'curved as shown, so that when the'locking plate is applied to the spindles adjacent one of the standards H the side walls of the slots G will form abarrier closing the open end of the slotted bearings, as will be readily understood.

Having thus fully described my invention, what I claim as new and desire to secure by Lettersrliatent is:

1. In a typewriter, the combination with a platen, and a spindle for supplying a paper or carbon web thereovei; of a standard provided with a slotted bearing in which one end of the spindle is journnled. and a locking plate having a curved or angled slot adapted to slip over the portion of the spindle entering said slotted bearing to prevent acci dental removal of the spindle therefrom, said slot being extended upward from its mouth at an angle to the slotted bearing.

2. In a typewriter, the combination with a platen. and a spindle for supplying a paper or carbon web thereto; of opposed standards in which the spindle is journaled. the bearing of one of said standards being slotted. and a locking plate adapted to be positioned adjacent said standard and being provided with a curved or angled slot con structod to receive the spindle and lock the same against displacement from the slotted bearing. said slot being extended upward from its mouth at an angle to the slotted bearing.

3. In a typewriter, the combination with a platen, and a series of spindles for delivering a plurality of paper or carbon webs, or both, to the platen: of a standard having :1 series of slotted bearings in which the adjacent ends of said spindles are journaled, and a locking plate having a series of curved or angled slots constructed to fit simultaneously over the portions of the spindles entering said bearings. said slots being extended upward from their mouths at an angle to the slotted bearings. I

in testimony'whereof, I aiiix my signature, in the presence of two subscribing witnesses. I GEORGE W. DONNING.

Witnesses T. .VVELDEN, DAVID H. LITTER.

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