US2326065A - Trolley pole head - Google Patents

Description

All@ ,3, 1943- -T. R. RIDEOUT 2,326,065 TROLLEY POLE HEAD Filed July 24, 1941 2 Sheets-Sheet 1 1 [III/111111111111111.

Aug. 3, 1943. T. R. RIDEOUT TROLLEY` POLE HEAD 2 Sheets-Sheet .2

Filed July 24, 1941 WITNESSESI QU )s Patented Aug. 3,1943

, Y `"rit'oLMiY Pone' HEAD Theodore R. Hideout, Glenshamla., 'assigner to l Westinghouse Electric & Manufacturing Company, East` Pittsburgh, Pa., a corgcvoratio'nqofV Pennsylvania eentonig July 24, 1941,' seria1 No. 403,801

, iz claims. (ol. ier-59) My invention relates, generally, to current vcollectors and has reference, inpartioula, to atrolley pole head for use on trolley lbuses or other 've- `hicles for collectingcurrent from an 'overhead conductor.

VGenerally stated,`it is an object tion to provide a simple and inexpensive trolley pole head having a guard member 'which is inexpensive to manufacture and easy to install.

. More speciically, it is an object of my invenof Y my Vinvention to provide a trolley pole head having lan'imf proved body member for supporting a pivotally -mounted slider shoe and 'also having a resilient guard member for preventing the slider shoe frombecoming entangled with overhead support wires when dewired and minimizing shocks when the current collector strikes a support wire or vide for securing a resilient guard member to a pole head body member by means of a slider shoe support. l

It is also an'object'o-f my invention to provide an inexpensive pole head'structure having a detachable guard member which is easy to manuactu're and'which may be readily renewed. y

Other objects will in part be obvious, and will in part appear hereinafter.

In practicing my invention a simple and inexpensive pole head body structure'for supporting a slider shoe or other current collector device on a trolley pole may comprise 'a tubular member to receive an elongated trolley pole support `member and having a socket for receiving a slider shoe support member. r A. resilient guard member having an inclined front guard surface is interposed'between the body memberand the slider shoe, `and is secured thereto by means of the `slider-shoe support. A resilient bushing may be `inteposed between the body portion of the Vpole `head and `the trolleypole support memberhav- `ing metalliorsecuringmeans formed therein'to 'which the pole head body member may be detachably secured.

` For a more complete understanding of the nature and scope 'of my invention reference may .be had to the following detailed description, which may be read inconnection with the accompanying drawings 'in which;

Figure l is "a side elevational view of a trolley `pole head emodying the principal ieaturesoi the invention;

Fig. 2 is `a `re'ar elevational View partly broken out `and Vpartly in section of the pole head of Fig. 1;

Fig. 3 is a partly sectionedside elevational view of the pole headof Fig. l with the slider shoeand guard member removed;

Fig. 4 isa sectional view `taken along the line IV-IV of Fig. 3;

Fig. 5 is a plan view of the washer used to se- `cure the guard member to the pole head member;

Fig. 6 is an enlarged side elevational view of lthe guard member;

VFig. Yfl is a cross sectional View of vthe guard Viifielmber taken along the line'VlI--VII of Fig. 6;

Fig.v 8 is a'planview of'theguard member;

Fig. 9 is a side elevational view of a modiiied Yform of guard member;

Fig. 'l0 is a partly sectioned rear elevational view bfthe guard member of Fig. 9; and Fig; '11 is'aplan view ofthe guard member of Fig. 9. v

Referring to Figs. "1 and 2, the reference numerall 0 may denote generally a trolleypole'head having `a slider shoe H` detachablyisecured to 'a "swivel l2 by bolts VI3 and pivotallymountedcn a substantially vertical support member i4 'forengaging a trolley conductor i5. The Vsupport member I4 may be mounted on a trolley pole (not shown) by means of a Abody member l5, which may be secured tothe trolley pole by means of fan elongated trolley pole 'extension or support -member l1 which is adapted 4to fit within th'eend of 'the trolley pole in a well known manner. Thebody member I6 maybe provided with a socket member I8 :for receiving the support meniber i4. A'suitable guard member i9 maybe positioned 'between the slider shoe and the body 'member I6 to prevent the slider shoe from bemay be secured thereto in inclined relation, in any suitable manner such as by welding.

In order to provide a resilient connection between the pole head body member I5 and trolley pole extension or support member I1 and insulate them from each other, a bushing 23 of a l suitable resilient material such as, for example,

rubber, neoprene', or any other such material,

may be interposed between the tubular body member 25 and the support member I1.

may be provided with a corresponding protuberance 25 positioned in the recess to assist in locking the bushing to the support member.

In order to detachably secure the body member I5 to the bushing 23, the outer surface of rScrews 33 may be utilized to secure the body member i@ to the plates 21, thereby detachably securing the pole head body memberv i6 to the trolley pole support or extension I1 and aording Va yielding connection therewith. A back up plate 32 may be provided within the tubularV member 20, ifV desired, to prevent undue deformationof the resilient material'23 Vand thus increase the resistanceof the resilient material against the TheV support member I1 may be provided with a re-Y cess or notch 24 on one side and the bushing 23v the current collector to deflect a support wire or other obstacle from the slider shoe. Y Y

AsV shown in Figs. 1, 2, 6, '1 and 8 the upper recess 38 may be provided with a relatively flat shoulder portion 43 surrounding the opening 36. As shown in Figs, l and 2, the shoulder portion 43`is adapted to extend slightly above the upper end of the tubular socket I8 wheny the guard member I9 is positioned on the pole head body member. A washer 44 shown in Fig. 5, may be provided, having an opening 45 with flattened member shear stresses setup when forces are applied to the body member le tending to separate it from the trolley pole extension or support member I1. In order to provide an additional connection between the tubular member 2i) and the'resilient material the tubular member 2t may be deformed at one or lmore places to provide protuberances 33 on the inner side which interlock with theA resilient material and assist in securing the member is thereto.

' In order-to prevent the slider shoe Il from becoming entangled with the support wires orother parts of the overhead trolley system when the slider shoe becomes dewired, means such as the guard member It may be interposed between the slider vshoe and the body member I of'thepole head. As shown in Figs. 1,V 2 and 6I through 8, the guard member i9 may comprise a body member oi'a resilientmaterial such as rubber, synthetic rubber, neoprene, orv any one of the other tical opening 35 therein for receiving the support member Ill of the slidershoe. The body meme bermay be provided with a recess 31 on the substitutes therefor, having a substantially verlower side to receiveY the upper portion of the tubular body member 26 and a recess 38 on the o,

upper side to receive the lower portion of the swivel i2. A drain hole 39 may be provided from the recess it to the rear of the body member tol prevent water accumulating in the recess.

" The body member 35 may alsoY be provided .shoe be dewired. As shown in Figs. 2 and '1, the sides of the body member may flare outwardly, extending beyond the swivelfso as to provide Vrelatively smooth guard surfaces on the sides of side portions 46 and positioned on the support I4 against the shoulder portions 41 thereof. When'the nut 48 on the support member is tightened, the washer 44 is drawn downwardly against the shoulder portion 43 thus securing the `guard member I9 to the body membei` Iii. By locating the shoulder portion 43 a suitable distance above the upper end of the tubular socket member I 8, the nut 48 may be tightened to secure the support member i4 to the pole head body member IB without drawing the washer i4 tightly against the end of the tubular socket member I8. Thus the shoulder portion 43of the guard member actually supports the support member I4 yieldingly, relative to the pole head body member I6. n

Referring to Figs. 9, l0 and 11, the reference numeral 4t may denote generally a modied form of guard member generally similarY to the guard member I9. The body member 50 of the `guard member 49 may also be provided with a recess 5I in the upper side having a drain hole 52, and relatively iiat shoulder portions 53 may be vprovided. adjacent the opening 54 which is adapted to receive the upper endV of the tubular socket member I8. The front surface 55 of the guard member 49 may be upwardly inclined so as to provide a relatively smooth guardV surface extending between the body member of the pole head and the slider shoe and the sides 56 may be outwardly ared to provide guard surfaces on each side of the slider shoe. The lower side of the guard member 45 may slope downwardly toward the front at an angle substantially equal to the normally operatingangle of the'trolley pole head Awith the horizontal, and may be provided with a 4substantially semi-circular groove 51 therein to receive the upper portion of therpole head body member lll.l The guard member 4Q may be secured to the pole head body member in a manner similar to that described in connection with the guard member I9, by being interposed between the poler head bodymember and the slider. shoe.

From the above description and accompanying drawings, it will be apparent that I have provided a simplified pole head or current collector which is inexpensive to manufacture and is easy to install. The tubularv construction of the body member readily lendsitself to production manufacturing. The renewable guard member is formed separately and may be designed to the best advantage to provide smooth uninterrupted guard surfaces in all directions about the slider shoe so as to prevent a support wire or other obstruction from becoming entangledV with the current collector: By making'theA guard member of a resilient material, not only is the shock of a dewired current collector striking a support wire minimized, `but the resiliency' of the guard member assists in throwing the current collector downwardly whenever it strikes a support, so that the retriever or trolley catcher" may retain it in the lowered position and prevent further entanglements with the overheadfsupports.

Since certain changes may be made in the above description, and different embodiments of the invention may bewmade withoutdeparting from the spirit thereof, it is intended that all of the matter contained in the above description or shown in the `accompanying drawings shall be considered as illustrative and not in a limiting sense.

I claim as my invention: 1. The combination in a current collector, oi

a support for pivotally mounting a slider Shoe, a Vsocket for said support, and a resilient guard member positioned about the socket.

2. A current collector pole head for a vslider shoe pivotally supported on a stern comprising, an elongated sleeve, a socket secured to the sleeve sleeve and socket.

. 3. A trolley pole head comprising, having aslidel` shoe mounted on av support stem, a tubular sleeve member having a socket to receive ient frontal guard portion eictending between the member, a trolley pole' extension member having metallic securing means with resilient means interposed therebetween, and means to secure the pole head body member to the securing means.

9. A current collector comprising, a` tubular pole head member, a slider shoe pivotally mount-v ed on a support member for universal movement relative thereto, a tubular socket member secured to the pole head member to receive the support member, and a stationary guard memberhaving a portion secured between thesupport member the support stem, Vanda moulded guard member of a resilient material interposed between the slider shoe and the sleeve member to provide a resilient surface portion adjacent the front end `of the current collector.

4. The combination with a slider shoe pivotally mounted on a support adapted to be secured to a pole head member, of a renewable guard member of a resilient material positioned between t the slider shoe vand the pole head member having an opening therethrough to receive the sup- 6. A current collector comprising, a pole head member, a support secured to the pole head member for supporting a current collecting device, and a guard member of resilient material interposed between the pole head member* and the shoe havandthe pole head member whereby the guard `member is detachably secured to the pole head member by the support member.y

l0. A guard member for a` current collector having a slider shoe mountedV on a pole head member comprising, a body member of a resilient material having an upwardly inclined frontal por tion, a recess on the lower side to receive a portion or the pole head member, a recess on the upper side to receive the lower portion of the slider shoe, and outwardly flaring side portions to prevent-an obstruction from striking ,the lower portion of the slider shoe. Y

l l. lA. guard member for a current collector having a slider shoe supported on a polehead member by means of a support member comprising, a resilient body memberV having an inclined frontal portion extendingv between the-pole head member and the slider shoe, and an opening therethrough to receive the'support member.

12. A guard for a current collector having a slider shoe mounted on a'swivel on afsubstantially vertical support secured to a pole head membercomprising, a body member of resilient material having an opening therethrough to re-A ceive the support with a recess on the lower side thereof to receive a portion of the pole head member `and a recess at the upper end to receive the ing an upwardly inclined frontalV portion extend-.-"

lector device mounted thereon by means of a sup-V port member, of means having an inclined resillower portion of the slider shoe, `an upwardly inclined front portion extending between the pole head member and the slider shoe, and outwardly flaring side portions extending to each side substantially as far as the swivel.

THEODORE R. RLDEOUT.

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