US475777A - Type-cleaner for type-writing machines - Google Patents

Description

( .NO Model.)

J. R. KEATINGE. TYPE CLEANER EOE TYPE WRITING MACHINES.

No. 475,777. Patented May 31,1892.

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JOIIN R. KEA'IINGE, OF BROOKLYN, NEV YORK.

TYPE-CLEANER FOR TYPE-WRITING MACHINES.

SFECIFICATION forming part of Letters Patent No. 475,777, dated May 31` 1892. Application filed December l2, 1891. Serial No. 414,819. (No model.)

To all whom t may concern:

Be it known that I, JOHN R. KEATINGE, a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Type-Cleaners for Type-Writing Machines, of which the following is a specification.

Myinvention relates to machines for cleaning types mounted on the type-bars of a typewriting or printing machine; and it consists in an improved apparatus containing a rotary brush mounted upon an upright shaft having its bearingsin an adjustable frame, as hereinafter described.

In the acccompanying drawings, Figure l is a longitudinal section through my apparatus placed upon a type-writing machine ready for work. Fig. 2 is a plan view of my apparatus.

Vithin a frame A is mounted in suitable bearings a vertical shaft c, carrying above a crank d and having secured to its lower end a rotary brush B by means of a split-pin or any other suitable contrivance, which permits its easy removal for the purpose of eX- changing the brushes or for easier transportation and storage. The shaft c, preferably near its lower end, is provided with screwthreads c', which engages with those out into the lower bearing a on frame A and with a collar r.

The frame A preferably consists of a eentral portion a, through which the shaft c is passing and to which is also secured the lower screw-thread bearing a6 by means of Vthe bracket n.5. Two slots 3 near each end of part a receive pins p, secured upon the extensionpieces a and a2, while the shanks of the thumb-screws t, secured to the extreme ends of part u, engage in the slots g, provided thereforin the extension-pieces a and CL2, and thus allow the frame A to be extended lengthwise, so as to suit the different sizes of typewriting machines. The extension a', which is intended to be placed in front, carries the handle 7L and below the guide-pieces a4, while to the end of the extension a2 is secured a semi-cylindrical clamp a3.

lVhen the apparatus is designed to be used for one particular size of type-writing machines only, the handle h, clamp a3, and guidepieces a4 will be attached to the respective ends of the part a and the extensions a and a2, and the thumb-screws and slots will be dispensed with entirely.

The operation of using the apparatus 1s now as follows: The brush B, having b een raised to its highest position, is dropped into the space between type-bars until the frame A touches the two parallel rods generally provided in the front and in the rear 0n the top of a type-writing machine and the extensions d and d2 are set and secured in such a manner that when the brush is in a central position the clamp a3 engages the rod m 1n the rear and the guide-pieces d4 slip over the rod fn in front of the machine. The apparatus having been thus once adjusted can be used for the same kind of machines by inserting the brush into the space and then backing the guide-lock as over the bar m and dropping the guides a4 ,over the bar n and then holding the frame in a central position by gently pressing with one hand upon the handle h, While with the other the shaft c 1s given a number of turns to the right till it is checked by the collar r, provided upon the shaft c, when the same number of turns is made to the left, thus returning the brush to its primary position. It is evident that the screw provided on the shaft c will communicate the reciprocating spiral motion to the outer surface of the brush and effect a thorough cleaning of the types by bringing fresh bristles in contact with the types at each successive turn of the shaft. If the types are arranged in an ellipse instead of in a circle, the operation has to be repeated twice and the frame should be held in two positions, the second position of the brush being indicated by dotted lines in Fig. 2 of the drawings.

Having thus described my invention, I claim- In a machine for cleaning the types of typewriting machines, a frame guided and supported by the parallel guide-rods of the type- Writing machine and provided With bearings and brackets for a Vertical shaft, in combination with a brush mounted upon a Vertical shaft and capable of receiving a spiral reciprocating motion, as and for the purposes herein shown and set forth.

Signed at New York, in the county of New York and State of New Yorlgthis 11th day of December, A. D. 1891.

JOHN R. KEATINGE.

` Vitnesses:

OHAS. STRAUSS, JOHN W. WELLBROCH.

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