US1063501A - Sleet-scraper for trolleys. - Google Patents

Description

Q 92k a I M. J. BRENNAN.

SLEET SCRAPER FOR TROLLEYS.

APPLIOATION FILED JULY 27, 1911.

1,063,501 Patented June 3, 1913.

2 SHEETS-SHEET l.

WITNESSES:

lglgi-INTOR M. J. BRENNAN. SLBET SGRAPBR FOR TROLLEYS. APPLICATION FILED JULY 27, 1911.

1,063,501 Patented June 3, 1913.

2 SHEETS-SHEET 2.

COLUMBIA PLANOGRAPH C0.,WASH1NGTON, n. c.

To all whom it may concern:

UNITED straTEsf PATENT OFFICE.

31 MIQEHTAEL. J1? BRENNAN;@OF- TOMPKINSVILLE; INEW GEORK.

V .'....SLEETSCRAPEREOBTROLLEYS.

Specification of-Lettersiatent.

.c Baten'tedJ une 3,i191.3.

1 Be itknown that MIOHAE" J;- BRENN s,

a citizen i'of theUnited States, residing at Tompkinsiville', New York, in thecountyojf Richmond and State of 'New York, lliLXG'lIivented certain new and useful Improve- 'ments' iifSleet Scrapers for Trolleys;

' I do hereby. declare the following to be wfllll, clear, and exact description of thein tachedsand detached so that a trolley-"wheel can: besupplied with theremover in a very vention, such as will enable others skilled the art to which it, appertains to make and use the same',-reference being had to the ac"- companying. drawings, andtfo figures of refierence markedthereon, which form of this; specification. TrThis inventionrelates to an-improved device for removing sleet from trolley wires or. conductors, and is designed to be attached? to the trolley-wheel as now commonly used, and to be so aflixed that it can easily beatshort. time. "The device isalso adapted tb- .rotateior swing with the trolley-wheel, bujt to-be limited inits swinging movements .that itcan not make a completerotationytlziz of movement to. present the remover scraper to the .wire, and at its otherlimit movement to have a surface presented to t e remover being in position at one of its limi Si wire which permits the trolley-to slide. 'Th's' .permitsthe remover to be run along a trolls .however, the remover swingsso that wire in a forward direction, and when 1110?- ..:ing forward, toscrape the sleet from thie i 7 wire. LAs soonas the car moves backwar .grooVed. portion without any removin'g Hmeans ispresented to the conductor, and

the car can:be .run backward without damage to the wire or its fastenings. Bothi the forward. and rearward posltions are assumed byitheremover automatically as soon as the'car to which-the trolley is attached changes its direction from forward to -rear-' .ward, or.vice versa.

The device is adapted to be secured to-the. trolley in any (manner, but I preter'to make theedevicefo f two members whicltfit in the groove of the trolley-wheel .and are clamped;

thereon soias to provide a good connection" .withthewh eel: and to swing with the wheelf A. further object of the invention is to pro- "The invention. is illustrated in'the' accompanying drawing, in which- Figure 1 isian elevationof thdevice attached to a trol'l'ey wheel, theiwheelfand a .part'of the. trblley-pol'e'being shown insection,i-the device being" in positionHthatit assumes wheni the car ism'oving forward. Fig 2 is a sidefviewof the "device attached to a tro'lley wh'eeland illustrated"in thetposition it assumes. when the'-trol;leymoves backwardf Fig; 3 is a" section 'online 3?, 3, .in Fig. 2. Fig. 4: is a top viewof theremover .detaclied. from the. trol'ley-wheel. Fig; is a perspective viewof the PZLIIDS'I'OIE the device with the exceptionoit the securing belt which is omitted to betterl'il'lustrate the other portions'of the'devicef Figs. 6 and 7 are a side and a-"top'view, respectively,;of a modified formof scraper.

.The device is adapted to be secured to the .usual formof trolley-wheel 10 and it can be "attachediin anywell known manneror in any way best suited for the construction 'of the trolley-wheel and the supports lhe trolley-wheel is .mounted to rotate in the end of a trolleyspole' 11; the end'of the'trolley-pole being formed with" suitable bearings'il2 which .support the trolley-wheel? 10. 'When' it is normally used Withouththe remover, th'e trblley runs on the-under side'of the trolley wire or conductorl3. *The remover comprises two cmembers,.the scraping me'mber 14 and thlsli'ding member 15, these .two' members being constructed. onitheir inner surfacesl6i=ahd"17,v respectively, to fit in .the groove'180f the trolley-wheellO, and are hinged together near'oneend'by means 10f a-boss19on the sliding" membenrand cheek-pieces 20 011 the scraping member, the boss. and thecheek-pieces being perforated to receive a bolt on rivet21f: Thehends' of are constructed to provide: means for clamping the -'two members tightly againstzthe 't rolley wheehlt), this being accomplished by a bolt-'22 "which swings'on a pivot 23 between the. eyes 24' 'which are constructed 'on the endof'the scraping member 14. The end of the sliding member" 15 isprovided 'Fwith parallellears'25 whicliform a slot 26 between them, this slot'rbeingtopen at? the outer end 'of the ears'25 so that-the bolt-L22, when the nut 27 is unscrewed, can be swung "outofthe slot 26' and the two' members then moved on their 3 pivot 21.. so.that .they clear Worn out, by. another.

. the periphery of the "groove '18: and" can be the members opposite the hinged connectionremoved from the trolley-wheel. The outer surface of the ears 25 is inclined as at 28 so that when the nut 27 is screwed up on the bolt 22, the tendency is to force the nut and the bolt inward toward the trolley-wheel and to prevent its accidental displacement, if it becomes slightly unscrewed, so that it can not swing out of the slot 26. Projecting up from the member 14 are the side walls 29 which are perforated at 30. The scraper 31 fits between the walls 29 and has the projecting flanges 32 to limit its inward movement and is secured in place by means of a rivet 33 which passes through the side walls and through the scraper, the scraper having its top edge recessed as at 34, the recess having its front end engage the trolley wire as shown in Fig. l.so as to exert a scraping action on the under side of the wire 13 to clear the sleet therefrom.

\Vhen the scraper is worn it can be easily removed by taking out the rivet 33 and inserting a new one, and then after the rivet is replaced, the device is again in shape to be used. When moving forward the scraper on the remover engages the wire and assumes the position shown in Fig. 1, being held there by reason of the limiting of the movement of the remover on or with the trolleywheel by reason of the ears 24 engaging the portion 35 of a trolley-pole. The sliding member 15 is provided with a groove 36 on its outer face, the groove extending, for a major portion of its length, on the outer edge of the sliding member, which outer edge is eccentric to the trolley-wheel, the point farthest removed from the center of the trolleywheel being that end of the groove of the sliding member which is adjacent to the scraper on the scraping member. As soon as the trolley is run backward the scraper engages the trolley wire and is swung forward, by its frictional engagement with the trolley wire and the trolley-wheel moving backward, so that it swings to permit the end 37 of the slot 36 to engage the wire which carries the remover and also the trolley-wheel around until the front of the side walls 29 engage the trolley-pole, and thus limits the movement of the remover and holds the groove 36 in position so that as the trolley continues its rearward movement the remover will slide along the trolley, not cause any undue wear on the trolley, and also prevent the engagement of any of the supports or fastenings of the trolley wire or conductor with the remover when the trolley is run backward so that said fastenings will not become damaged or misplaced. It will be evident that as soon as the trolley moves forward, the device, along with the trolley wheel, will be swung until the end 37 of the sliding member engages the trolley-wheel, at which time the scraper will also engage the trolley-wheel and be forced to the position shown in Fig. 1 and again resume the scraping function.

In Figs. 6 and 7 I illustrate a modified form of scraper in which the sliding member and the scraping member are combined in one member which is detachably secured to a trolley-wheel. The trolley-wheel 10 is shown in dotted outline, and the member 38 is provided with a groove 39, this groove permitting the sliding of the scraper on the wire when the trolley is run backward, the member 38 having its periphery with the groove 39 arranged eccentric to its inner surface. The member 38 is provided with a scraper 40 which has cheek-pieces 41 embracing the sides of themember 38 and is fastened to the member 38 by a rivet 42. This scraping member is also provided with a groove 43 between the side walls 44 so as to guide the scraper along the wire 13. The second member 45 is fastened on one end as at 46 to the member 38 and is provided with a bolt 47 which fits in the slot 48 in the end 49 0f the member 38 and is provided with a nut 50 by means of which the two members 38 and 45 can be drawn together to tightly clamp the members in the groove of the trolley-wheel. This construction is also adapted to co-act with the trolley-wheel support to limit the swing of the scraper and of the trolley-wheel, and in the construction shown in Figs. 6 and 7 the swinging movement of the scraper is limited by the engagement of the end 49 of the member 38 engaging the trolley-wheel suport.

p It has been found that on trolley wires covered with sleet, after the scrapers are run for some distance, the accumulation of sleet and moisture prevents a good cleaning of the under surface of the wire and the car is run back for a short distance, and then with a new impetus and a comparatively clean scraper, better results are obtained in cleaning the wire. The objection to scrapers that project in a manner or engage the wire in a way to make the act of running them backward a dangerous one, is overcome in this construction, since the scraper swings to present its scraping member or its sliding member automatically to the wire, according to which direction the trolley is being run.

Having thus described my invention, what I claim is l. A sleet remover for trolleys comprising a device having means thereon for engaging a trolley wire to scrape it, the device having a portion of its surface formed to slide on the trolley wire, the scraping and sliding being accomplished by governing the direction of movement of the device on the wire, means for securing the device to a trolley-wheel, and means on the device for engaging the support of the trolley-wheel for limiting the swing of the device.

2. The combination of atrolley-wheel and its wire, with a sleet remover arranged to swing on the trolley-wheel, a scraper on the sleet remover, the sleet remover having a grooved portion to engage the wire and slide thereon, the remover being adapted to swing to bring the scraper and the groove alternately in engagement with the trolley wire by a forward or backward movement of the remover, respectively, and means for limiting the swinging of the remover.

3. The combination of a trolley-wheel, and a trolley wire, with a sleet remover consisting of two members, means for clamping the members on the trolley-wheel, a scraper on one member, the second member having a groove in its periphery, the periphery being eccentric to the trolleywheel, and means for limiting the swinging movement of the remover with the trolleywheel.

4. The combination of a trolley-wheel, and a trolley wire, with a sleet remover consisting of two members, means for clamping the members on the trolley-wheel, a scraper on one member, the second member having a groove in its periphery, the periphery being eccentric to the trolleywheel, the portion of the grooved periphery farthest removed from the trolley-wheel being adjacent to the scraper, and means for limiting the swinging of the remover with the trolley-wheel.

5. The combination with a trolley-wheel, its support and a trolley wire, with a sleet remover, consisting of a scraping member and a sliding member, means for detachably securing the members on the trolley-wheel, and a scraper on the scraping member, the sliding member having its outer edge eccentric to the trolley-wheel, the periphery being grooved, the trolley support and the remover having co-acting means for limiting the swing of the remover so as to hold either the scraper or groove in contact-with the trolley wire.

In testimony, that I claim the foregoing, I have hereunto set my hand this 24th day of July, 1911.

MICHAEL J. BRENNAN.

Witnesses:

E. G. VEHSLAGE, E. D. JUNIOR.

Copies of th'i's patent may be obtained for five cents each, by addressing the Gommissioner of Patents, Washington, D. G.

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