US441457A

US441457A - Cable-winding mechanism for cable railways

Info

Publication number: US441457A
Authority: US
Publication date: 1890-11-25
Anticipated expiration: 1907-11-25

Description

j (NoMdel.)

.TJ e Dv h S. l S u n W W m L 2 M R E L B A G Rm H F K Lm ATN... A WH JM M G N I D AN I W E ,L B A C No. 441,457. Patented Nov. Z5,v 1890.

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J. WALKER- CABLE WINDING MBGHANISM FUR CABLE RAILWAYS. No. 441,457.

Patented Nov. 25, 1890.

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UNITED STATES PATENT OEEIQE.

JOHN WALKER, OF CLEVELAND, OHIO.

CABLEW INDING MECHANISM FOR CABLE RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 441,457, dated November 25, 1890.

Application filed April 16, 1890- Serial No. 348,144. (No model.)

To @ZZ whom it may concern:

Be it known that I, JOHN WALKER, of the city of Oleveland,in the county of Cuyahoga and State of Ohio, have invented certain Improvements in Oable-Windin g Mechanism for Cable Railways, of which the following is a specification.

This invention relates to improved means for transmitting' movement from the driving to the tail or idler drum, as will hereinafter fully appear.

In the descriptionl of the said invention which follows reference is made to the accompanying drawings, forming a parthereof, in which- Figure 1 is a planor top View of the driving and the tail cable drums, a part of their frame, and a friction-roller which serves to transmit movement from one drum to the other. Fig. 2 is a face view of the two drums and the friction-roller. Fig. 3 is a cross-sec tion of a portion of one of the cable-drums on an enlarged scale. Fig. 4. is an enlarged crosssection of a part of the frictionroller; and Fig. 5, a sectional- View of a spacing-piece forming a part of the friction-roller, also4 enlarged.

Referring to the drawings, A and B are respectively the driving andthe tail drum, and C and D the drum-shafts supported in the bearing-boxes E and F. A portion of the frame of the apparatus is shown in Fig. l and denoted by G.

The bearing-boxes E of the driving-shaft C are fixed-that is to say, they are secured immovably to the frame G-while those F of the driven or tail drum shaft D are adapted to have a limited movement longitudinally of the frame G, for a purpose hereinafter described. This may be accomplished in various ways-as, forinstanaby providing elongated holes s in the bases of the bearingboXes where the securing-bolts pass through.

The drums A and B, like those sllown and described in application, Serial No. 302,432, pending herewith, have their cable-grooves in independent rings adapted to turn loosely on the smooth circumference of the drum proper in order that the strain on the cable may be equalized, as set forth in the said application. These loosely-turning rin gs are denoted by d,

(see Fig.'3,) and they are confined between the flange b, which is integral with the drum proper, and the removable lia-nge c, which is held in position by means of stud-bolts d. Washers c provide for the tightening of the studs d, without binding the grooved rings together and between the flanges. vIt is evident that the surfaces of the drum and loose liange could come together, thus dispensing with the Washers cwi thout binding the grooved rings. The flanges b and c are widened or thickened toward their circumference in order to provide broad frictional faces f, which are in contact with similar frictional faces on the frictional roller H, hereinafter described.

The jfrictional roller H has one fixed peripheral flange g and a removable one h, and between these is confined the friction-annulus I, composedof three sections, two of which c and m are formed of layers of paper friction-board, and the third, a spacing-piece n, which is situated between the others and formed of iron. This spacing-piece n is hollow and constructed with internal radial ribs 0, as shown in Fig. 5. The three sections of the friction-annulus are drawn tightly together and clamped between the anges gand h by means of bolts p, having a nut at each end. The said frictional roller H, as described,

is secured to a shaft J, sustained in bearing-l boxes K, which, like the ones F, have a slight movement longitudinally of the frame G. The friction-roller is on a straight linel extending from the center of one drum to that of the other, as shown in Fig. 2. By referring to Fig. l it will be seen that the frictional faces of the two drums are in contact with the paper faces of the roller H.

`.The object in using paper for the sections 7.; andanl of the annulus I is to prevent slipping, which would occur if a roller with ametallic face were used.

The cable is represented in Fig. 2 by a dotted line, and it will be understood that its tension serves to retain the drums closely in contact with the friction-roller, the movable or adjustable bearing-boxes F and K admit` ting of this clamping effect.

I claim as my invention-s l. A friction roller for the purpose described, having a removable face in three sec- IOO 1o two composed of layers of paper adapted to engage with the flanges of lche winding-drum, mid the third or central one formed of met-al :rml not adapted to engage with said drum, and bolts passing through the three sections and the flanges, substantially as set forth.

JOHN WALKER. Vltnesses:

J. W. SMITH, 7. M. HUBBELL.