US1692893A - Trolley construction - Google Patents

Description

Nov. 27, 1928. 1,692,393 v G. C. GUTZAT TROLLEY CONSTRUCTION Filed Jan. 31. 192'? s sheets-sneer 1 Awwv l Il Inventar Q. C. Qaza ttornqy Nov. 27, 1928.

G. C. GUTZAT TROLLEY CONSTRUCTION Filed Jan. 51. 1927 5 Sheets-Sheet Nov. 27, 1928.'

G. C. GUTZAT TROLLEY CONSTRUCTION Filed Jan. 31. 1927 3 Sheets-Sheet Patented Nov. 27, 1928.

` UNITEDr STATES .GUSTAV C. GUTZAT, ,0F JERSEY CITY, 15113119'` JERSEY.

TROLLEY CONSTRUCTION.

Application led January 31, 1927. Serial No 164,821.

My ypresent invention pertains to trolleys; and it contemplates the provision of a trolley Iconstruction possessed ot tures of advantage hereinafter s the same.

The invention consists in the improvement as hereinafter described and definitely claimed. n

1n the accompanying drawings :forming io vpart of this specilication Fig-ure 1 is aside 4elevation illustrating one `embodiment of ascribed to my invention, the said embodiment being designed especially for heavy work having side wires.

Figure 2 is a side elevation illustrating an embodiment of my invention designed for light work such as on trolley cars and the lilre.

Figure 3. is an enlarged view partly in plan and partly in section showing the wheel car- ?.G rying portion of the trolley shownuin Figure 2. Figure 4 lis an enlarged detail plan view illustrating the head shown in Figure 1, and the parts carried bysaid head.

Figure 5 is a further enlarged end elevation ofv the same taken from a view point to thek right of Figure 4. l l

Figure 6 is a detail perspective of one of the wooden oil-less bushings employed in my improvement. ,Y

Figure 7 'is a detail perspective of one oi the endwise movable spring pressed carbon brushes of my improvement. Similar numerals designate corresponding parts in Figures 1, 4, 5, 6 and`7 to whichreterence will first be made. e,

1 show in Figure 1 a trolley wire 1, and l also show in Figures 1, 4, and 5 circumferentially grooved trolley Wheels 2, the said wheels 2 in accordance with prevailing practice being of bronze, and being inished with wooden oil-less bushings 3, the bushings being provided in order to prevent arcing from the wheels 2 to the pins 3 onwhich the wheels turn, thereby preventing roughing and pitting of the pins 3 and averting undueywear ot .the bronze Wheels 2. While the employment ot the wooden bushings in the relation stated is preferable, I do not desire to be understood 5o as claiming the same per se as my invention. Vheels 2 and the pins. 3X are carried by a head4, and -vthesaid head 4 is ymounted to swing laterally on a pin 5., the head being secured on the said pin 5 in any manner compatible with the purpose of my invention. l:v

Y would also have it understood at this point the practical tea.

that the head 4 is preferably provided vWith circular apertures 6 shown in Figure 1 as disposed at right angles to the pin 5, the said apertures G being designed to receive the pin 5 when it is desired to place the head 4 and the wheels 2 at right angles to the location shown in Figure 1 so as to `enable the wheelseral sleeves in which are arranged and frec-l tilinearlv. movable carbon brushesy 9, the inner end or which bears directly against the sides of the wheels 2 forA the purpose of collecting electric current from the wheel. The said brushesv 9 are held under yielding pressure against the sides of the wheels 2 through the medium of springs 10 which are connected at 11 with the head. It will also be understood from Figure 4 of the drawing that conductors 12 arer interposed vbetween and connected tothe carbon brushes 9 and the head 4.

At 18 the head4 is provided with `a plug which is connected at 14 to the head and is designed for the connection of the wire to iced current to a motor (not shown).

Located in the side of the head 4 remote romthe carbon brushes 9 are plugs 1 5 preterably of the same material as the before described bushings 3. The said plugs 15 are arranged in coincidence with the line Vof movevtions seated in apertures 16 in the head side and also have enlargements disposed at the inner side of the trame `side and betweensaid side and the opposed sides of the trolley wheels 2. yBy virtue of .this provision, the n pressure of the springs 1() aga-inst the brushes 9, and the pressure of the brushes 9 against the sides ofthe trolley wheels 2 are prevented Afrom pressing said trolley wheels 2 out oit line.y

arm 9X is mounted to vention, the trolley a post 2O carried y,by a

Y ment of the brushes 9 and have reduced pory In the preferred .embodiment of my inthesaid bracket 21 being lined one arm of th-e trolley arm 9x which is full Crum-ed at 2li, in order that the wheels 2 ley wheel 2-X and the pin 32.

vided in order that when desired, the arm 9X may be employed to carry a single trolley Wheel 2X onla` pin 3 in the manner as shown in Figures 2 vand 3, it being understood that a wooden bushing similar tothe bushing 3 of Figure 6 is interposed between the trol- Movable rectilinearly in the apertures 25 and sleeve 26 are carbon brushes 9C, the said carbon brushes 9C being pressed by springs l()c against opposite sides of the trolley wheel 2x so as to assure the proper collection of electricity or 'electric current from the sides of the wheel 2X and vat the same time prevent the trolley wheel 2x from being thrust outl of line. In other words, when two brushes 9c are employed at opposite sides of the trolley wheel, the pressure of one brush against the wheel will equalize the pressure of the other brush, and consequently the wheel 2X will be maintained straight and true. It will also be understood that the trolly arm 9X is provided at opposite sides with lateral lugs 30, and that the springs 10d are connected to the said lateral lugs 30.

i At 40 the arm 9X is provided with a plug for the connection of a conducting wire when the trolley wheel structure shown in Figures l and 3 is employed. Manifestly when the trolley wheel construction illustrated in Figures l, t, and 5 is employed, the plug a0 will be idle.

It will also be understood from Figures 2 and 3 that conductors 12x are interposed between and connected to the brushes 9C and the arm 9X so as to enable the current coll-ected by the brushes 9C from the wheel 2x to pass freely to the arm 9X.

As shown by dotted lines in Figure 2 and by full lines in Figure 3, I prefer to embody in the construction shown inFigures 2 and 3 housing sections 50. These housing sections are hooked at 51 into engagement with the arms at opposite sides of the bifurcations in the trolley member 9X and are detachably onnected at 52 to opposite sides of the memer 9".. Y It will be apparent from the foregoing that the specific construction oftrolley arm tor member 9X as shown herein and described is designed to be equipped with the` single trolley wheel 2X, two carbon brushes 9C, springs 10d complementary to said carbon brushes, and housing sections 50, or all of the elements enumerated may be,4 displaced, and the trolley arm 9x may be equipped with the head t as shown in Figures l, 4 and 5, and

vice versa. By thelatter is meant that when the head 4- and its appurtenances are removed from the trolley arm 9X, the said trolleyv arm 9x may be equipped as shown inV Figures 2 and Sto provide a much lighter construction than is disclosed in Figures l, l and 5.

I would also have it distinctly understood that when I claim a single trolley wheel in combination with a support, and with brushes carried by the support and opposed to and yieldingly pressed against the trolley wheel, I intend to cover such combination 1r- Y respective of its use in the embodiment shown in Figures 2- and 8 or in the embodiment shown in Figures l, et and 5, in which latter the head l specifically speaking is the support for `carrying the brushes' and the means for pressing the brushesinwardly and against opposite sides of the trolley wheel to maintain the latter against lateral deflection.

Notwithstanding the practical advantages ascribed to my improvemenhit will be appreciated from the foregoing that the structures constituting the preferred embodiment of my invention Vare simpleand inexpensive construction and relative arrangement of parts as shown and described, my invention being defined by my appended claims Within the scope of which modifications may be made without departure from my invention.

Having thus described the invention, what I claim is i l. In combination, a. sectional bracket lined with insulating material, a post onsaid-bracket, a trolley arm swingable on the post about theA aXis thereof, said arm alSO swingable axially of the post, a retractile spring interposed between one portion of said arm and the bracket, and trolley wire engaging means carried by the opposite portion of the arm.

2. In combination, a support, a trolley wheel mounted in said support, a plug of insulating material as wood carried by and in the support and having an enlarged portion interposed between one side of the support and' one side of the trolley wheel, and a spring pressed collecting brush carried by and movable in the opposite side ofthe .support and opposed to one side ofthe trolley wheel and electrically connected with the support.

3. In combination, a support, having spaced sides and also having an aperture in one side and a coincident aperture in the opposite side, the latter aperture surrounded by a sleeve extending from the side, a trolley wheel mounted in said support, a plug of insulating material as Wood disposed in the lirst named aperture and having an enlargement interposed between the lirst named side of the support and one side of the trolley Wheel, a current collecting brush movable reotilinearly in the second named aperture and in said sleeve and opposed to the opposite side ci the trolley Wheel, an electric connection between the outer portion' of the said brush and the support, and a spring strip carried by the support and arranged to exert inward pressure against the outer end of said brush.

4. In combination7 a trolley arm, trans-k verse pin carried by said arm, a post associated With said pin and swingljable in the direction of the length of the trolley arm, and a head mounted on and swingable about said post and having end portions equipped With trolley Wheels; said head having an apertured portion to receive the post When the head is disposed at right angles to the first indicated position.

5. In combination, a trolley arm7 a head connected with and movablerelative to the trolley arm, trolley Wheels carried by the end portions o said head and adapted to be opposed toA a trolley Wire, current collecting means carried by said head and opposed to the trolley Wheels at one side of the latter, spring means for pressing against said current collecting means against said trolley Wheel, electric connections between said current collecting means and the head, means carried by the head and interposed between the sides of the trolley Wheels remote from the current collecting means and the head for preventing lateral deflection of the trolley Wheels, and means on the head for the taking o current therefrom.

In testimony whereof I afiX my signature;

GUSTAV C. GUTZAT.

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