US1608279A - Typewriting machine - Google Patents

Description

Nov. 23 1926. 1,608,279

' G. F. HANDLEY TYPEWRITING MACHINE Filed March 23, 1926 IIIIII IIIH Patented Nov. 23, 1926.

UNITED" STATES 1,608,279 PATENT OFFICE.

GEORGE E. BANDLEY, OF GLENDALE, NEW YORK, ASSIGNOR TO ROYAL TYPEWRITER COMPANY, INC., 015 NEW YORK, N. Y., A CORPORATION OF NEW YORK.

rrrnwnrrme MACHINE.

Application filed March 23, 1926. Serial No. 96,755.

In small portable machin es wherein considerations of weight are important, it is common to make the ribbon spool houslng of sheet metal with open top. It has been found, particularly in shipping or moving the machine from one place to another, that the ribbon spools are apt to become displaced from their housings. This may also occur when the machine is in ordinary use because o-f'the ribbon spool being caught and lifted accidentally from its housing.

The invention therefore comprises a simple, light and efiicient means for normally retaining the ribbon spool in the housing against accidental displacement at any tlme, but which'will permit the spool to be removed when it is desired to change the ribbon.

In the drawings:

Figure 1 is a longitudinal section through a typewriting machine showing the invention applied thereto.

Figure 2 is a section through a portion of the ribbon spool housing, showing the invention, and drawn to a larger scale.

Figure 3 is a top plan view of the ribbon housing and connected parts with the ribbon spool removed. I

Figure 4 is aside elevation of the parts shownin Figure 3.

The invention is herein illustrated as applied to a typewriting machine having .a ,main frame A, platen carriage B, carrying platen C, against the front side of which strike typebars D, which are actuated by any suitable mechanism from'keys E. The

ribbon spobls are supported on and driven.

by shafts F and these spools support a ribbon G which passes from one spool to the vibrato-r and thence to the other spool in the.

usual manner.

The type'of machine herein illustrated is the little Royal machine, wherein a sheet metal mask isadapted to enclose the main frame A for the purpose of preventing dust and dirt from entering the interior of the machine and also to give the same a pleasing appearance. This mask is fully disclosed in an application. filed by E. B. Hess, Ser. No. 19,085, on March 28, N25, and a. fragmentary portion H of said mask is shown on the drawings of this application.

Each ribbon spool housing 3. is adapted to receive the ribbon s 001 2 and is provided wth' a slot 3 throng i which passes the ribbon G. Carried by the bottom of the housing is a bracket 4 to which is pivoted at 5 an upstanding arm 6 which has an upper laterally bent and rounded end'7 adapted to project through a slot 8 in the ribbon housing to the interior thereof. This arm 6 is urged to its operative position by a spring-9 which is attached to an ear 10 of the arm at one end and at its other end to an offset lug 11 on the bracket 4. The movement of the arm and of the tension of the spring is limited by the arm coming in contact with a pro prevent any accidentaldisplacement o the spool from its housing. When, however, it is desired to remove the spool it is only necessary to lift the same, whereupon the lower flange comes 'in contact with the rounded end 7 and cams the arm 6 to the dotted line position of Figure 2, thus allowing the spool to be readily removed. When a new spool is inserted, the reverse operation takes place.

A ribbon spool bracket 12 is attached to the machine frame in any suitable manner and has a horizontal ortion 13 to which the bottom of the housing is attached by a screw 14, while the screw 15 attaches a bent down lug of the housing to the vertical portion of the'ribbon spool bracket 12.

'Whenthe ribbon is removed there will of course be considerable force exerted against the arm 6 which. will be transmitted to the ribbon housing. Since as has been previously stated, this 'ribbon'housin ,is of a light character it has been foun desirable to provide an additional support or tie plate 16 which is connected to the bottom of the housing by a screw 17 and is extended into proximity with the front JOItlOH of the.

mask H to which it is attac ed by a screw 18 as clearly shown in Figures 3 and 4. In this manner the ribbon spool housing is firmly suported against any ,strains that maybe imposed thereon by the removal of the ribbon "spool.

It is obvious that the invention so far as many of its features are concerned, may be applied to typewriting machines of widely different character and it is also evident that the recise details of the invention may be variet without in any way departing from the spirit thereof. Accordingly, the invention is to-be regarded as limited only by the'scope of the appended claims.

I claim:

1. In typewritingmachines in which the ribbon spool rests within a housing, means for preventing accidental displacement of the spool, said means comprising a bracket carried by the lower portion of said housing,

an arm pivoted thereto, and havin its upperremoving or replacing a spool.

4. In typewriting" machines in which a housing is provided for a ribbon spool and in which a mask'encloses portions of the machine frame, a housing support, means connecting the housing thereto, and a tie plate connected to the housing at one end and at its other end to said mask.

5. In typewriting machines the combination of a ribbon spool housing of light construction having an open top and a skeleton 6. 1n typewriting machines in which the ribbon spool rests within a housing, means for preventing accidental displacement of the spool, said means comprising a bracket carried by the base of said housing, an upstanding arm pivoted thereto and having its upper end offset to project through a slot in the housing into position to overlie a portion of the ribbon spool, and means whereby the arm is automatically moved to inoperative position by moving the ribbon spool from the housing.

7. In typewriting machines in which the ribbon spool rests within a housing, means for preventing accidental displacement of the spool, said means comprising a bracket carried by the base of said housing, an upstanding arm pivoted thereto and having its upper end offset to project through a slot in the housing into position to overlie a portion of the ribbon spool, means urging the arm-to operative position, and means on the bracket for limiting such movement.

In testimony .whereof, I have hereunto subscribed my name.

GEORGE F. HANDLEY.

Images