US713742A - Contact-shoe for electric railways. - Google Patents

Description

No. 7l3,742. Patanted Nov. l8, I902.

w. m, Bnowu. CONTACT SHOE FOB ELECTRIC BAILWAYS.

[Application film] Nov. 30, 1901.

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UNTTTD STATES PATENT @FFICE.

l/VILLIAM MILT. BROIVN, OF JOHNSTOIVN, PENNSYLVANIA, ASSIGNOR TO THE LORAIN STEEL COMPANY, A CORPORATION OF PENNSYLVANIA.

CONTACT-SHOE FOR ELECTRIC RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 713,742, dated November 18, 1902.

Application filed November 30,1901- Serial No. 84,236. (No model.)

To all whom it may conce n: ion members which are interposed between Be it known that I, WILLIAM MILTON the bar A and the said contact-strip. These BROWN, of Johnstown, in the county of Camcushion members consist each of a block or bria and State of Pennsylvania,haveinvented section, preferably of soft rubber of a more a new and useful Improvement in Contactor less porous orspongy character. They are Shoes for Electric Railways, of which the folseated between upper and lower cap-plates D lowing is a full, clear, and exact description, and are secured to the bar A by means of reference being bad to the accompanying bolts E, having headed lower ends 6, which drawings, which form a part of this specificaare seated in recesses 6, cut into the blocks on [0 tion. the lower sides thereof. The bar Bis secured My invention relates to contact-shoes for to the blocks or cushion members by means electric railways,andis animprovement upon of rivet-bolts F, which extend up into the the shoe described and claimed in my Patent, said blocks or members, with heads at their No. 602,495, of April 19, 1898. upper ends which are seated in recesses f, cut

15 The object of my invention is to retain the into the upper surfaces of the blocks. The vertical elasticity or flexibility of the shoe depth of the recesses e and fis sufficient to described in the said patent and at the same permit a considerable compression of the time provide for greaterlateralrigidity thereblocks in the manner shown in Fig. 1. In of; also, to obviate the tendency of the shoe to fact, the bolts do not in any way restrain or 20 sag, and thereby hang too low in use by realimit such vertical compression, but they do son of the tendency of the elastic cushion to prevent to a considerable extent any objecstretch or elongate vertically, and to provide tionable lateral or swinging movement of the fastening means for the contactstrip and contact-strip. There will be very little tendcushions which will not become loose or tear ency of the cushion members to sag or stretch 25 out in use. vertically. I do not wish to limit myself,

To these ends my invention consists in inhowever, to cushion members of the particuterposing between the metallic contact-strip lar construction which I have herein shown of the shoe and its carrier a cushion comand described, nor do I wish to limit myself posed of a number of separate pieces or blocks to the particular fastening devices, as it is ob- 0 of soft rubber or other similar material comvious that blocks or sections of elastic mate- 8o bined with means for securing the contact rial may be constructed in various ways to strip and the said pieces or blocks and the serve the purpose of the invention and that latter to the carrier in such a manner as to various means may be employed for securing permit of the necessary vertical compression them to the carrier and to the contact-strip 3 5 of the blocks or pieces without objectionable which will possess the advantages herein delateral movement and tendency to stretch or scribed. sag. Having thus described my invention, what In the accompanying drawings, Figure l is I claim as new, and desire to secure by Letters a side elevation of a portion of a contact-shoe Patent, is-

0 embodying my invention shown in engage- 1. In an electric contact-shoe, a cushion o ment with a contact-box of an electric railcomposed of a plurality of separate blocks or way. Fig. 2 is an enlarged view of a portion sections of elastic material interposed beof the shoe, and Fig. 3 is a section on the line tween and secured to the contact-strip and 3 3 of Fig. 2. its carrier and capable of independent verti- 45 The letter A designates a bar of Wood or cal compression. other suitable material secured to any de- 2. In an electric contact-shoe,the combinasired part of the car frame or truck by means tion with a contact member and its carrier, of of bolts E, one of which is shown in Fig. l. a cushion composed of a plurality of separate B designates the continuous metallic conelastic blocks or sections interposed between 50 tact-strip, and C designates a number of cushsaid contact member and carrier, and fasten- I ing devices which secure said blocks or sections to permit vertical compression thereof, and to restrain their lateral movement.

3. In an electric contact-shoe, the combination of a suitable carrier secured to the vehicle, a number of blocks or sections of elastic material secured to the under side of said carrier, and a continuous contact-strip secured to the under side of said blocks or sections, the securing device for said strip being movably engaged with said blocks or sections.

4. In an electric contact-shoe, the combination of a carrier and continuous contactstrip, and a, series of cushion members interposed between said carrier and strip, bolts seated in said carrier and having headed ends seated in recesses in said members, and bolts secured in the said strip and having heads movably seated in said members.

5. In an electric contact-shoe, the combination with the carrier and a continuous contact-strip, of a number of cushion members interposed between said carrier and strip, together with bolts secured in. said carrier and strip and having headed ends seated in recesses of said cushion members.

6. In an electric contact-shoe, the combination of a carrier and continuous contact-strip, a plurality of separate cushion members interposed between said carrier and strip, capplates seating the upper and lower faces of said members, and securing devices seated in said bar and strip and engaging said cushion members in opposite directions through said cap-plates.

In testimony whereof I have afiixed my signature in presence of two Witnesses.

W. MILT. BROWN.

Witnesses:

COOG G. Cox, H. W. SMITH.

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