US312890A - pearce - Google Patents

Description

(No Model.)

F. I. PBARGB. SHIPPER DEVICE P08 REVEL FRIGTIONVDRIVING WHEELS,

No. 812,890. f Patented Febpzzl, 1888.

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FRANK I. IEABCE, OF CHICAGO, ILLINOIS, ASSIGNOR 'IO THE LINK BELI MACHINERY COMPANY, OF SAME PLACE.

SHIPPER DEVICE FOR BEVEL FRICTION DRIVING-WHEELS.

SPECIFICATION forming part of Letters Patent No. 312,890, dated February 24,1885,

Application filed December 18, 1884. (No model.)

To all whom tmay concern:

Be it known that I, FRANK I. Pinnen, of Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Shipper Device for Bevel Friction Driving-Vheels;

and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this application.

My invention relates to a novel and useful contrivance for shipping into and out of enA gagernent the surfaces of bevel friction-surface drive-wheels. Previous to my invention various means have been employed for this purpose, the most common among which is that in the use of which either the driver or the bevelwheel toA be driven is moved slightly substantially in a plane coincident with that in which the wheel lies.

I propose to adopt a principle of construction and mode of operation in the means ernployed for shipping` into and out of working contact the bevel surfaces of the wheels, by which the wheel to be moved slightly shall be moved lengthwise upon the shaft on which it is mounted, and by which it is driven, or which it drives, as the case may be,) and to this end and object my invention may be said to consist in means, substantially such as hereinafter described, and more particularly pointed out in the claims of this application, by which a beveled face friction-pulley may be thrown into and out of engagement by moving it slightly upon the shaft upon which it may be mounted.

To enable those skilled in the art to which my invention relates to make and use the saine, I will now proceed to describe my iin' proved contrivance, referring by letters to the accompanying drawings, which form part of this specification, and in which I have shown my invention carried out in that forin in which I have so far successfully practiced it.

In the drawings, Figure l is a perspective view showing the box, shaft,shipperhandle, box-bushing, and helical slot and push-pin of a shipper contrivance made according to my invention. Fig. 2 is a top view of the same with the addition of the bevel -facc friction-pulley mounted on a shaft shown in Fig. l. Fig. 3 is a sectional view showing all the parts seen at Fig. 2, (with the exception of a portion of the bearing-box which is removedu) and also the second frictionpulley designed to be thrown into and out of engageinentwith the pulley shown at Fig. 2.

In the several figures the same part will be found designated by the same letter of reference.

A represents a shafaon which is mounteda 6o bevel friction-pulley, B, the said pulley being free to move more or less upon said shaft in the direction of the length of the latter, but forced to rotate with said shaft by reason of a spline in the eye of the pulley, with which engages in a well-known manner the feather c of the shaft.

Immediately :in the rear of said pulley Bis mounted, on a shaft, A, a short cylinder or bushing, d, within which the shaft A turns 7o freely, and which is formed or provided near that end which abnts against the back of the pulley B with a collar, c, designed to form a stop against one side of the box f,within which said bushing d is arranged, as shown, and 7: within which said bushing d is free to turn to v a limited extent, as and for the purpose to be presently explained.

On the projecting end of the bushing d, opposite to that end which has the collar e, is 8o securely fastened one end of an ordinary shipper-handle, G, while from near the middle lengthwise of the exterior of said bushing d projects radially asmall pin or lug, `adapted to play freely (whenever the bushing d be turned on shaft A) within a helical slot, i, made through the upper portion of the bear ing-box or pillo w-block f, all as clearly shown.

H is another bevel-face friction-pulley adapted to run in contact, when desired, with the 9o pulley B, and keyed fast onto the end of an ordinary shaft, L, which is arranged in the same plane with the shaft A, but runs in a direction transverse to the line ofsaid shaft A.

The operation of the devices thus far de- 95 scribed, and arranged together as shown in the drawings, may be thus explained: Supposing the two wheels B and H to be out of contact, as shown at Fig. 3, and the pin g to be located (about as shown at Fig. l) near roo that end of the helical sloti which is farthest from the hack side of the wheel B, in order to Shall throw the wheels B and H into operative engagement, so'that the one which may be in constant motion shall operate to drive the other one, it is only necessary for the operar tive to take hold of the shipper-handle G, and, moving it in the direction indicated by the arrow at Fig. l, cause the bushing d to partially rotate within the boxf and upon the shaft A, on which said bushing is mounted, such partial rotation of said bushing causing the pin or lug g thereof to be so acted upon by the helical slot l as to move the bushing endwise on the shaft A and within the boxf in the direction indicated by the arrow at Fig. 3. This endwise movement of said bushing d forces the pulley B to slide more or less on the shaft A, to which it is splined, and brings its beveled working-face into contact with the bevel-face of the pulley h, the forcibleness of said contact between the faces of the two pulleys B and H being in proportion to the extent to which the shipper-handle G may bevibrated, or, in other words, to the extent to which the pi n g may be forced in the desired direction by the action ofthe helical slot t'.

Uf course the operation of the pulleys and shipper devices may be transposed from that shown at Fig. 3.

The sizes, proportions, and detail construction of the several parts may be varied as expediency or the judgment of the skilled mcchanic may dictate. I therefore wish it to be understood that I do not consider myinvention limited to either the sizes, proportions, or the exact detail constructions of the several parts of the contrivance shown; but, Having so explained the construction and operation of my improved shipper contrivance that those skilled in the art can make and use my invention, what I claim as new, and desire to secure by Letters Patent, is-

In combination with a bevel friction-pulley mounted to slide on a shaft and adapted for engagement and disengagement with a similar pulley, a rotating and sliding bushing or collar provided with a pin or lug engaging with an inclined or helical groove in the journal-box in which ,said rotating and sliding bushing is arranged, the combination being such, as described, that by a partial rotation of said bushing through the medium of an ordinary lever or handle the said pin or lug, acting within an inclined slot, will cause said bushing to simultaneously move longitudinally and force the bevel 'rictionpulley into engagementwith the pulley to be driven, substantially as set forth.

In witness whereofl have hereunto set my hand this 25th day of November, 1884.

FRANK I. PEARCE. e In presence of;-

Gno. E. JoHNsoN, Jr., -WILL. P. SrssoN.

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