US1542572A - Trolley shoe - Google Patents

Description

June 1s, 1925, 1,542,572A

J. F. oNEAL TROLLEY SHOE Filed June 2, 1922 sire the same to beiunderstood as illustrative ing a part hereof, y

Patented June 16, 1925.

i 1,542,572 PATENT o FFIcE.

JAY r. oNEAnoF WATERLOO, iowa.

TROLLEY ,SI-ICE; f

Application med June 2,

To all whom it may concern:

Be it lmownthat I, JAY F. ONEAL, a lciti'- Zen of the United States, residing at lVater loo, Iowa, have `invented certain Vnew and useful Improvements in'` rlrolley Shoes, Of which thefollowingfisa speciiication.

My invention pertains to that class ol devices which lare used inI connection with trolvide a structure ofthe character indicated which will obviate the necessity of using any special form of. trolley wheel or harp; to'provide a structurevfor the purposeY indicated which can be used along the lines equip )ed with block signal mechanism; and such iurther objects, advantages, and capabilities as will later more fully` appear. y

My invention further resides in the combination, construction, and arrangement of parts illustrated in the accompanying drawing and, while Ihave shown therein a preferred embodiment' of my4 invention, I deonly and not as limiting said invention.V

In the drawing annexed hereto and torm- Fig. 17s a fragmentary elevation of a y trolley pole. and harp, carryingV my new at- Y tachment between thejharp and the trolley wheel.

Fig. 2 is an end `elevation of the structur shown in Fig.. 1.

plane indicated by the line 3 3 Fig. 2.

V ture shown in Fig. 1.

Y drawing, numeral 1` designatesfthe trolley- Fig. l.lis a broken plan view of the. struc- Fig. 5 is a sectional tially along the plane indicated bythe "line 5 5 Fig. 3. W. Referring more in detail to the annexed pole, 2 an ordinary harp, 3k an ordinary trolley wheel, and f1 denotes generally the attachment constituting the subject4 matter ot myfV invention. .This` attachment .com-L prises .supporting means consisting essentially of a pairfof side'plates anda comf bined weight and wear plate 6, ythe wear elevation vvsubstani 1922. serial no. 565,309. 1

plate boing denoted speciiicallyby the numeral 7 and the remainder of 'the weight by the vnumeral 8. The parts 7 and 8 are secured betweenthe side plates 5 by means of bolts 9 and 10. The side plates 5 are provided ontheirexterior faces, approximately centrally, with trunnionsll which may be Ainserted into the bearings 12 of the harp which, as has been indicated above, is an ordinary vharpvsuch as is customarily found on trolley poles of the type shown.4 When the trunnions 11 have been inserted in the" bearings 12 weight 8 andwear plate 7 are inserted between the side plates andsecured in place by means of bolts 9 and 10.v Trolley wheel 3 is then insertedbetween the free ends of the side plates 5 andpivot pin 13 isslipped through the aligned openingsv in the trolley wheel and side plates andsecured in place by means of a cotter pin or other suitable means. Side plates 5` are yprovided at suitable locations, such as along their edges,.with appropriate stop vmembers 14 and V15, which serve to limitthe amount of rotation off the attachment about its pivot 11. 'In the construction shown this rota.

tion may be as muchas approximately 150.

.VVhenmoving forwardly as indicated by the solid' arrow in Fig. 1, the parts will occupy the relative positions shown in solid klines in this figure, which puts the wear plate 7 in contact withthetrolley Vwire 16l and wheel S'outoi1 contact. therewith, as shown most clearly'in Fig. 3,

YFrom the Jforegoing description itv will be apparent that if the wear plate?? becomes unduly worn from use the boltlO may be removed and then a new wear plate can be -substituted for the one removed. @wing to the peculiar shape of the partsf 7 'and 8 Fig. 3 is a sectionsubstantially along the there will besubstantially no looseness and relative movement ot these parts when secured in position. `Since .the trunnions 11 are formed on the 'external faces of the platesV 5 4the attachment cannot; become loosenedffrom `the harp anddrop`fout, fthe parts being held in position by means of the bolts9 and 1Q as isy obvious.- Also, since the" pivot V'member 13 is secured to one orboth of the plates' 5, the security of these plates within the harp 2 is rendered doubly sure. The shape of the attachment is such that. when used in connection with a'line provided with blockv signal mechanism the car may move either forwardly 'or baclrwardly and the trolley will work with equal facility in either direction. W'hen the car starts to back, as shown by the dotted `arrow in Fig. l, the parts turn on pivots l1 into the dotted line position shown in this figure with both trolley wheel and wear plate contacting the wire. When the car again starts to move forwardly, the attachment carrying wheel 3 will turn around its pivots l1 until the parts are again in the relative positions shown in solid lines in Fig. l.

The fact that this device can operate bot-h forwardly and rearwardly in conjunction with block signal mechanism (as distinguished from prior devices of this type) is considered very important.

It is of course understood that the specific description of structure set forth above may be departed from without departing from the spirit of my invention as set forth in this specification and the appended claims.

Having now described my invention, I

` claim y on the opposite side thereof and being adapted to pivotally support the trolley wheel in the light side and when so supporting the trolley wheel the lighter side is heavier than the opposite side.

2. In al structure of the character described, a trolley harp, a shoe pivoted therein intermediate its ends, and a trolley wheel pivoted in vone end of the shoe and capable of rotating freely in either direction, saidend carrying the trolley wheel being heavier than the opposite end and normally tending to hold said opposite end up in contact with Vthe trolley wire.

3. In a structure of the character described, a shoe for insertion between the harp and wheel of a trolley pole, said shoe being pivoted in the harp bearings kand having the wheel pivoted therein and comprising a pair of spaced side plates each carrying a pivot for the trolley wheel and provided-with trunnions for the pivoting of the yshoe inthe harp, a block secured between the V,side plates and holding the saine at a xed jdistance apart, and a removable and replaceable element normally sliding on the trolley wire when in use, located between the side plates. l

4. In a structure of the. character described, vmeans to be inserted between a i standard trolley wheel and harp, comprising a grooved shoe provided with pivots mounted in the harp bearings, said shoe having 'bearings for the. reception of the trolley wheel pivot, and a trolley wheel having its ypivot mounted in said bearings, the moment of the weighted portion ot the shoe about its axis being less than that of the `trolley wheel about said axis.

5. An attachment to be inserted between a standard trolley wheel and harp comprising a pair of complementary plates provided on their exterior faces with trunnions, one end of said attachment being provided with trolley wheel bearings and the opposite side being weighted to enable the attachment to be easily turned about its pivot. Y

G. In an attachment of thecharacter described, a pair of side plates provided approximately centrally with outwardly eX- tending trunnions, a shoe located between lie side plates and tothe opposite sides of which the plates are. secured, said shoe comprising two separable parts one of which constitutes a replaceable wear plate to en'- gage the trolley wire in normal condition of use.

7. Iii an attachment of the character described, a pair of side plates provided approximately centrally with outwardly extending trunnions, a shoe located between the side plates and to the opposite sides of which the plates are secured, said shoe coinprising two separable parts one of which constitutes a replaceable wear plate to engage the trolley wire in normal condition of use, and the other -of which normally remains fixed between the side plates.

8. In an attachment of the character described, a pair of side plates provided approximately centrally with outwardly extending truniiions, a combined weight and shoe located between the side plates and to the opposite sides of which the platesv aie secured, said combined weight and shoe coniprising two separable parts one of which constitutes a replaceable wear plate to engage tlie trolley wire in normal condition of use, and the Vother of which normally i'emains fixed between the side plates, said attachment having projections which normally serve as stop members to limit the amount of rotation of the attachment about its pivots by engagement of said sides of the harp.

projections with the Y 9. An attachment to beiinserted between l a standard trolley wheel and harp comprising a pair of complementary plates provided on their exterior faces with trunnions,

said attachment being provided with trolleyY com risinO an attachment havin@ lateral C C trunnions adapted to engage the usual trolley wheel bearing of a standard liarp,rsaid attachment having a peripheral groove to receive the trolley Wire and provided with spaced bearings of a size adapted to receive the standard pivot pin of the usual trolley Wheel. v

11. An attachment to be inserted between a standard trolley Wheel and harp comprising means provided With trunnions to engage the harp to permit said means to shift relatively to said harp, said means having trolley Wheel bearings and provided With a detachable Wear plate to engage the trolley Wire in the normal condition of use.

12. A device of the character described comprising supporting means having lateral trunnions adapted to engage the trolley Wheel bearing of a harp, said supporting means having a peripheral groove and provided With spaced bearings of a size adapted to receive the pivot pin of the standard size trolley' Wheel. n l

In Witness whereof, I hereunto subscribe my name to this specification in the presence of two Witnesses:

JAY F. ONEAL. Witnesses:

L. F. NOTTGER,

C. B. JOHNSTON.

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