US815283A - Trolley. - Google Patents

Description

No. 815,283. PATENTED MAR. 13, 1906.

P. J. GIBBS.

TROLLEY.

APPLIOATIOH FILED JAN; 20. 1905.

2 SHEETS-SHEET 1.

. wwmgl PATENTED MAR. 13, 1906.

F. J. GIBBS. TROLLEY.

APPLICATION mum JAN. 20. 1905.

2 SHEETS-SHEET 2 FRANK J. GIBBS, OF TYRUNE, PENNSYLVANIA.

THOLLEY.

Specification of Letters Patent.

Patented March 13, 1906.

Appllnatlun filer] January 20, 1906. Berle] No. 241,960.

To all whom it may concern:

Be it known that I, FRANK J. GIBBS, a citizen of the United States, residing at Tyrone, in the county of Blair and State of Pennsylvania, have invented a new and useful Trolley, of which the following is a specification.

This invention relates to improvements in trolleys for use in securing electrical connections with overhead feed-wires.

()ne of the obiects of the invention is to provide a novel structure which will have s iaced bearings upon the wire, will accommo- (late itself to the curves thereof and kinks therein, and will therefore more securelv maintain a proper engagement with such wire.

A further object is to provide a structure which will practically be suspended from the pole bracket-arms, so that it will maintain a proper position even when disen aged from the wire, thereby obviating the o bjection of top-heaviness and permitting the convenient and ready replacement or engagement of the trolley with the wire.

An embodiment of the invention that is at resent considered preferable is illustrated m the accompanying drawings, \vhcrcin Figure 1 is a side elevation of such embodiment. Fig. 2 is a to plan view of the same. Fig. 3 is a longitudinal sectional view. Fig. 4 is an end elevation of the front trolleywheel and uide-rollers therefor, a portion of said wheel eing shown in section. Fig. 5 is a rear elevation of the gear-wheel and the guide-arms coacting therewith. Fig. 6 is a cross-sectional view taken on the line 6 6 of Fig. 2. Fig. 7 is a detail bottom perspective view of the carrienbracket and the positioning-s ring mounted thereon, and Fig. 8 is a detai pers ective view of the body of the pivot mem er.

Similar reference-numerals desi nate corresponding parts in all the figures of the drawlugs.

In the embodiment illustrated a ortion of a pole 9 is employed, which may )0 of any well-known or desired construction and cari rics at its upper end spaced bracket-arms 1U. the upper terminals of \Vllltl] are provided i with eves ll. Said upper terminals are conbody 12, located between the arms and connected thereto by headed journal-pins l3,

threaded into the ends of the body and rotatably passing through the eyes 11. A head member 14 is also located between the bracket-arms 10 and consists of a to plate 15, located over the pivot-member bot y, said plate having depending side walls 16, pro vided with slots 17, through which the journal-pins 13 pass, the end walls 18 of the slots being adapted to abut against the journalpins and constituting stop-shoulders, as is ereinafter described. The head 14 is rovided with a de ending substantially upright pivot 19, whicli may be integral therewith and preferably is so constructed in order that it may turn with the head. This pivot 19 passes downwardly through an opening 20, ormcd in the bod 12 of the ivot member, the lower end of the pivot being reduced in diameter and constituting a stem 21, which is threaded and has a longitudinal keyway 22. By this ivotal connection it will be a parent that t e head 14 can swing in a su stantially horizontal direction upon the pivot member, this swinging movement being limited by the length of the slots 17,0r, in other words, by the engagement. of the end walls of the shoulders 13 with the journal-pins 13. Furthermore, as the pivot member can turn on a horizontal axis the said head is also capable of an upright swinging movement.

in order to reduce friction between the pivot member and head, rollerbearings in the form of balls 23 are interposed between said head and the body 12, being preferably located in raceways or grooves '24, formed in the up er side of said body 12 contiguous to the cm s of thc same and also in a circle about the pivot.

In order to rovent the head becol'ning detached from he pivot member, a nut 25 is threaded upon the stem 31 of the pivot, and for the purpose of maintaining the head in a predetermined position with respect to the pivot member a positioning-spring is employed. This positioning-spring is a leafsprmg 26, secured between its ends to the curved flange '27 of a carrier-bracket 28.

mounted upon the stem 21 below the nut :25

and having a key '39, that cn agcs in the keyway 2;, said brnr-kcts being ihus held against relative rotation with respect to tho pivot by said boy and being maintained against displat-cutout by u out till, threaded on the stem nccted by a pivot member consisting of a and bearing against the bracket. The leafspring 2t: is fastened to thc llaugc by suitable rivets 3| or other fasteners. which pass throu h said flange .27, through the spring .26, and through a gunrd-phite 31.. located outside said plate. The terminal portions of the spring, slidably engage in guideways 33, formed on the pivot-member body 12 by means of depending oll'set lugs 34, spaced from and carried by the body member, all of which is shown in Ft". 2 of the drmvings.

The head 14 carries oppositidy-extending cars 3."), located in advance and in rear of the pivot member, these cars terminating in upstanding hook portions 36, that receive axles 37, on which are journaled trolley-wheels 38, preferabl ball-bearing, as indicated in dotted lines in Fig. 4 at 39. It is to be observed that the axles 37 are located lower than the axis of movement of the pivot member and that the front axle is disposed closer to said pivot member than the rear axle. This (lisposition is important for the reasons hereinafter set forth. Contact-plates 37, secured to certain of the cars 35, have oll'set terminals provided with openings that receive the reduced ends 38 of the wheel-hubs and bear against shoulders 39 thus formed on said hubs. Secured to the front ears 35 of the head, by means of the front axle 37, are upstanding brackets 40, having spaced inner and outer legs 41, to and between which are journalcd cone guiderollers 42, located on opposite sides of .the front wheel 38, with their inner peripheral margins dis osed directly adjacent thereto. Secured in ike mannor to the rear ears 35 of the head by means of the rear axle 3?, are rcarwardly and upwardly extending guide-arms 43, the upper terminal portions 44 of which diverge, while the intermediate portions of said arms are located directly adjacent to the peri heral edges of the wheel, as illustrated in ig. 5. An 0 )cnjng 45 is formed in one of the depending side walls 16 of the hcad,and in this opening is secured the usual trolley-r0 e 46.

It will be observed that when t 19 trolleywhccls 38 are upon a feed-wire they can continue in contact with the same without regard to the curves thereof or the kinks therein, and even should one of the wheels break such contact for an instant the other will remain in en agcmcnt, and thus sparking to a very considerable de ree is avoided. The wheels can turn to filllow the curvatures of the wire, for the head carrying said wheels can turn horizontally on its vertical pivotal connection with the pivot member and can also swing vertically, because of the pivotal connections of said member with the bracketarms of the pole. The positioning-s Jring, however, normallv maintains the bee in a predetermined relation with respect to the ivot member, as will be apparent, and thus if the wheels are removed from the wire this positioning-spring will hold the head in such position. Furthermore, when the trolley is discnga ed from the wire, being practically suspenclbd from the hanger-arms, it will not be top-heavy. This, it is thought, will be apparent when it is considered that the axles of the wheels are located below the pivot-axis of the pivot member and said member is arranged as high as is practicable. The rear end of the trolley, moreover, overbalances the front end, so that said rear end will drop to the lower position. In placing the trolley upon a wire strain is of course ut upon the rope 46. This will cause the head to swim' in an upriht direction, raising the rear wlicel above t e front wheel and movin the guidearms 43 to a substantially uprig t position, so that the rear wheel can be conveniently engaged witmwire. Upon releasin the strain upon the rope 46 the front whee will move it wardly and the wire, guided bv the cone-r0 lers, will engage the same. When both wheels are upon the wire, the rear 'uides extending rearwardly are substantial y out of the way of cross-sup orts and similar devices. The strueture, t erefore, is so formed that it may be conveniently and readily placed against the wire.

From the foregoing it is thought that the construction, operation, and many advantages of the herein-describedinvention will be a parent to those skillet] in the art without urther description, and it will be understood that various chan cs in the size, shape, proportion, and minor dztails of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a trollev, the combination with a supportin -pole havin 1 upstanding bracketarms, of amend locate between the bracketarms, a transverse substantially horizontal ivot member connecting the head between its ends and the arms, trolley-wheels located in advance and in rear of the pivot member, and axles for the wheels carried by the head, said axles being disposed lower than the pivot member and the front axle being arranged nearer the axis of said ivot member than the rear axle, whereby t 10 rear end of said head overbalances the front end.

2. In a trolley, the combination with a support, of a pivot member pivotally mounted on the support, and a head movably mounted on the pivot member and swinging therewith in one direction, said head having a movement on the pivot member in another direction, and said pivot member having a portion thereof located in the path of movement of the head for limiting the swinging movement of said head upon and with r spect to the pivot member.

3. in a trolley, the combination with a support, of a pivot member movably lnount ed on the support, and a swinging head pivotall v supported on the pivot member, said pivot member having a portion constituting a stop to limit the swinging movement of the head with respect to said pivot member, said head swinging into and out of engagement with said portion.

4. In a trolley, the combination with a support of a pivot member pivotally mounted on the support, a swinging head, and a pivot connecting the head and ivot member and extending transversely of t e latter, said head being arranged to engage the pivot member u on its swinging movement on the ivot and eing thereby limited in said swinging movement.

5. In a trolley, the combination with a support, of a pivot member pivotally mounted on the support, a swinging head, and a pivot connecting the head and pivot member, and extending transversely of the latter, said head having stop-shoulders arranged to abut against the pivot member.

6. In a trolley, the combination with a support, of-a pivot member pivotally mounted in the support, a swinging head, and a pivot connecting the head and pivot member and extending transversely of clatter, said head having a de ending wall provided with a slot through W ich the pivot member extends. l

'7.-. In a trolley, the combination with a pole'having bracket-arms, of a member connecting the arms, a head located over the member and havin depending side walls rovided with slots t irough which the memer asses, a trolley-wheel carried by the head and a pivotal connection between the head and member.

8. In a trolle the combination with a pole having braclZet-arms, of a pivot member connecting and journaled upon the bracketarms, a head comprising a casing located over the pivot member, a depending pivot for the head passing through the pivot member, said head havin side walls provided with slots through which the pivot member passes, and trolley-wheels journaled on the head in advance and in rear of the pivot member.

9. In a trolle the combination with a pole having bracl r et-arms, of a pivot member connecting the arms, a head extending over and on o posite sides of the pivot member between t e arms, an upright pivot connecting the head and member, wheels carried by the head on opposite sides of the member, a series of balls interposed between the head and pivot member and disposed directly about the pivot, and other balls interposed between the pivot member and head directly adjacent to the connections of said pivot member with the bracket-arms.

10. In a trolley, the combination with a pole having upstanding arms provided with eyes, of a pivot member comprising a body portion, 'ournal-pins enga 'n said body portion an passing throng t e eyes of the bracket-arms, a head extending over the pivot member and having oppositely-extending ears, wheels journaled to and between the cars, de ending walls constituting parts of said hea and having slots through which the journal-pins pass, and roller-bearings in terposed between the head and body of the pivot member.

11. In a trolley, the combination with a pole having braeketearms, of a pivot device connecting the arms, a head, a pivot connceting said device and head, a wheel carried by the head, and a positioningsprint carried by the pivot, extending longitudinally of the axis of said pivot device, and transverse] r of the head, said s ring having an interloclred engagement wit 1 the device for maintaining the head in a predetermined )osition. i

12. In a trolley, the com ination with a support, of a pivot member pivotally carried thereby and having a guideway, a head pivoted on the member and movable therewith and with respect thereto, a wheel carried by the head, and a positioning-spring movable with the head and slidable in the guideway upon the movement of said head with respect to the pivot member.

13. In a trolley, the combination with a support, of a pivot member pivotally mounted thereon transversely of the sup ort and having an offset lu forming a guideway, a head mounted on t e pivot member, a substantially upright pivot connecting the member and head and turning in the pivot memher, and a leaf-spring secured to the pivot and swinging upon the movement thereof, said spring having a free ortion slidable in the guideway formed by the lug.

14. In a trolley, the combination with pole having spaced bracket-arms, of a pivot member journaled on the bracket-arms, a head carrying a trolley-wheel, a substantially upright pivot carried by the head and journaled in an intermediate portion of the pivot member, ofiset lugs carried by and spaced from the pivot member on opposite sides of the pivot, and a leaf-spring secured between its ends to the pivot and having its Terminal portions slidablybearing against the 15. In a trolley, the combination with a support, of a member mounted on the support transversely thereof, a head carried by the member and having a trolleywheel, said member extending transversely of the head, a pivot carried by the head and passing throu h the member, a carrier-bracket secured to t e pivot and turning therewith, and a leafspring secured between its ends to the carner-bracket and having its terminal portions slidablv interlocked with the member.

16. In a trolley, the combination with a pole having spaced bracket-arms, of a pivot member connecting the arms, a head mount ed on the pivot member and having a sub stantially upright swinging movement, trolley-wheels located in front of and behind the pivot member, guide-rollers carried by the front portion of the head and located on opposite sides of the front wheel, and rearwardly-extending guide-arms carried by the rear end of the head and having divergentlydisposed terminals located on opposite sides of the rear wheel.

1?. In a trolley, the combination with a support, of an axle secured thereto a trolley journaled on the axle and having a hub provided with a reduced rotating portion forming a shoulder, and a contact-plate secured to the su port and having an 0 enin that receives the reduced portion of t e hu said plate bearing against the shoulder and said reduced portion of the hub rotating in the plate.

18. In a trolley, the combination with a )ole, of a head having a pivotal connection between its ends with the pole wheels ournaled upon the head and eu o posite si es of said )ivotal connection, the Tent wheel being is osed closer to the said connection than t e rear wheel, rearwardly-extending guide devices carried by the rear portion of the head on opposite sides of the wheel, and means connected to the head between its ends for raisin r the rear portion of the head and bringing t 1e guide devices substantially to upri ht position.

19. n a trolley, the combination with a support, of a member mounted on the sup- )ort, a head carried by the member and havmg a trolley-wheel, a pivot carried by the head and passing through the member, a carrier-brac et mounted on the pivot, said bracket and pivot having an interlocking liey and keyway connection, a flange forming a part of said bracket, and a spring secured to the flange and engaged with the said member.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.

FRANK J. GIBBS.

Witnesses:

WILLIAM H. AGNEW, FRANK X. HEWEL.

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