US585267A - Alfred john gairing - Google Patents

Description

(No Model.) 2 sheets sheet 1.

A; J. GAIRING.

ELECTRIC TROLLEY DEVICE.

No. 585,267. Patented June 29,1897.

WITNESSES: IN VEINTOH" W ATTORNEY.

(No Model.) 2 SheetsSheet 2. A. J. GAIRING. ELECTRIC TROLLEY DEVICE.

No. 585,267. Patented June 29,1897.

WITNESSES INVENTOH X, m/um B) AITOHNEJ).

l ms 00. Pumuunm, wnsmuaroma a NITF TATES ALFRED JOHN-GAIRING, OF JOHNSTOIVN,

PENNSYLVANIA, ASSIGNOR TO THE STEEL MOTOR COMPANY, OF SAME PLACE.

ELECTRIC-TROLLEY DEVICE.

SPECIFICATION forming part of Letters Patent No. 585,267, dated June 29, 1897. Application filed December 26, 1896. Serial No. 617,097. (No model.)

To (ZZZ whom it may concern.-

Be it known that I, ALFRED J OHN GAIRING, a resident of J ohnstown, Oambria county, Pennsylvania, have invented certain new and useful Improvements in Electric-'lrolley Devices, of which the following is a specification.

My invention relates to trolley devices of the class used on electric-railway vehicles to make traveling contact with a suspended conductor, and has for its object the provision of a strong and durable device that will readily contact with the conductor in each of its variable positions relative to the vehicle, that will very rarely break the normal contact with the conductor, but in case of such accidental breakage of contact will at once fall down to a position in which no damage can be done to it or to span-wires or other parts of the conductor construction, and that will have other advantageous features to be hereinafter pointed out.

To these ends my invention consists in an improved form of lazy-tongs trolley and in the novel construction, arrangement, and combination of parts as I am about to describe, due reference being had to the drawlngs.

Referring thereto, Figures 1 and 2 are respectively side and end views of one of my improved trolley devices. Figs. 3 and 4 are enlarged side and end views of the lower parts thereof with portions broken away. Fig. 5 is a side view of the contact-wheel. Fig. 6 is an end view of the contact-wheel, yoke, &c., mounted on their respective shafts. Fig. 7 is a side view of the lower end of one of the B arms, showing part of its connection with the tension devices. Fig. 8 is a plan view of the trolley-base.

Above the roof of the vehicle is secured in any suitable manner the base A, preferably a casting of substantiallythe design shown. Upon this are the four parallel lugs a, a a and a b is a bolt secured, as shown, to lug a and extending through said lug through the lower end of the arms B and E the flange a and ends within one side of the stiffener-guide O. In this manner the said bolt acts as a pivot for the arms B and B and helps to support and pivot the guide 0. The bolt b is secured to lug a and serves to pivot arms B and B entering the other side of the guide 0.

Secured at a a, beneath the base A, are the ribbon-springs D D, having dogs (1 d thereon, the V-shaped tops of which engage indentations in the cam-face of C. Slidable vertically in O is the post E, having the square head F, which is connected by pivotally-secured links G G to the arms B, B B and B The arms B, B .13 and B pivoted about 1) and 11 as already pointed out, have angular extensions below their pivoting-points, in which are curved slot-s (shown clearly in Fig. 7) through which pass pins secured between bars H H. Secured to the ends of the bars H H are tension-springs J J, one end of which is secured to nuts securedabout bolts K K near the ends of said bolts. The other ends of K K are secured between flanges a on the base A by nuts. The usual nuts for ad justing the tension of the springs are also used.

The use of the curved slots allow of an equalization ofthe upward pressure against the conductor, for as the tension of the springs increase it is evident that the pins between bars H H slip upwardly in the slots, thus reducing the leverage upon the upper parts of the arms as the springs grow stronger.

The upper ends of B and B are pivoted to a casting M, to which are secured the lower ends of the-bars L and L B, B, L, and L are similarly secured. B and B are also secured together for further rigidity,.as shown clearly in Fig. 4, by a connecting-bolt just above the pivoting-point, and a tube is inserted between the arms and the links G G to prevent lateral swaying of the arms. 13 and B are similarly secured together.

The four L bars form a framework, L and L being bent at their tops to a substantially vertical position and fastened together, while L and L are similarly bent and fastened together.

N is a transverse shaft, secured at itsends to the top of the framework and having about it the slidable wheel 0. I prefer to insulate the shaft N from the other portions of the device and I also prefer to insert between the wheel 0 and the shaft N a bushing P, made of insulating material, such as rawhide. I

ICO

do not, however, claim such insulation as an. invention of mine, as such forms no part thereof.

R is a yoke which secures together the wheel 0, the bushing P, and the collectingsprings 7r h. R slides transversely with the wheel 0 and prevents oblique movement of the wheel by surrounding at its lower end the auxiliary shaft Secured to each side of the wheel 0 is one end of a cord 0', which passes around pulleys 1" 1", and is secured at 0' to cords r "r which extend to any desired operating location.

The action of my improved device and the advantages thereof may now be clearly seen.

The springs J J, acting upon the lower ends of the 1% arms, tend to bring the upper ends of said arms toward each other, so producing a constant upward pressure between the contact-wheel and the conductor, and the change able leverage caused by the introduction of the curved slots in the lower ends of said arms in turn causes a substantially even pressure between the wheel and the conductor at all of the positions which the device may assume. If by any accident the contact-wheel leaves the conductor, there is no danger of harm being done to the trolley or to the conductor connections on account of my improved supporting device, for any unusual strain will act through the B arms to the post E, thence to the guide 0, which will force the cam-face of C over the depressible dogs (Z (Z. The use of the post E and the connections therefrom to the B arms also prevents any swaying of the device as it moves through the air, thus making a device that is more durable and a contact with the conductor that is more regular than would otherwise be possible.

As the trolley remains in the same position for either direction of travel it need not be removed from the conductor when the direction of travel is to be reversed, saving the annoyances incident to such reversal. Moreover as the device may be placed centrally with the vehicle the necessity for lateral -variation in the position of the conductor is dispensed with.

The novel arrangement of the ropes from the contact-wheel allow of easy adjustment and prevent any kinking of the rope, which otherwise occurs as the wheel slides along its shaft.

I wish to be clearly understood as notlimiting myself to the precise details of construction, arrangement, or combination of parts as herein shown and described, as many modiiications may be made without departing outside the scope of my invention.

\Vhat I claim, and desire to protect byLcttors Patent, is

1. In an electric-trolley device, the combination of a base, transverse pins secured thereto in the same horizontal and transverse planes, aplurality of convergingarms pivoted near their lower end about each of said pins and constituting sides of a lazy-tongs, pivot-al connections at the upper ends of the arm with the upper sides of the lazy-tongs, and spring devices connected to the lower sides below their pivotal points.

2. In an electrictrolley device, the combination of a base having upwardly-extending flanges, pins secured between said flanges and having a common transverse axis, a plurality of arms pivoted about each pin and forming one of the lower sides of the lazytongs, and a yieldingly-held support pivoted about the said transverse axis.

3. In an electric-trolley device, the combination of a lazy-ton gs frame carrying a transverse shaft in proximity to the conductor and having a plurality of diverging members forming each of its four sides, the two lower sides being pivoted near their lower ends about a common transverse axis, and spring devices secured to each of said lower sides below its pivotal point.

t. In an electric-trolley device, in combination with diverging upwardly-pressed arms, a guide, a post adapted to slide in said guide, and pivotal connections from the post to the diverging arms.

5. In an electric-trolley device, in combination, a lazy-tongs frame suitably secured upon a vehicle, a post vertically slidable through a suitable guide supported by the vehicle, and pivotally-secured connections between said post and the lower arms of said frame.

6. In an electric-trolley device, the combination of a base, a plate-spring secured be neath the base at each end thereof, a dog rigidly secured to said spring, and a pivoted, cam-faced block having an indentation adapted to receive said dog.

7. In an electric-trolley device, in combination, a lazy-tongs frame secured upon a vehicle, pivotally-secured connections from the lower arms of said frame to a post vertically slidable through a pivoted guide, and indentations in the cam-face on the lower side of said guide, said indentations engaging suitable dogs projecting from horizontal springs.

8. In a device for imparting upward pressure to the upper end of a trolley-arm, a curved slot in said arm below its pivotingpoint, a pin secured through said slot and adapted to move therein toward the pivoting-point of the arm as the upper end of the arm is lowered, and connections from the said pin to suitable spring devices.

9. In an electric-trolley device, in combination, a plurality of arms forming the diverging lower sides of a lazy-tongs, said arms being pivoted on transverse axes near their lower ends, a curved slot in each of said arms below their pivoting-points, and pins passing through said slots and secured to the ends of springs, all substantially as, and for the purpose, set forth.

10. In an electric-trolley device, the combination of a transverse shaft and a contact 12. In an electric-trolley device, a transverse shaft carried by said device, a contactinaker movable along said shaft, a cord or other flexible connector secured to each side of the contact-maker, means, as the fourpulleys r r, to keep said cord ata substantially even degree of tautness, and suitable connections as r 1- from said cord to any desired location.

In testimony whereof I have affixed my signature in presence of two witnesses.

ALFRED JOHN GAIRING.

Witnesses:

W. S. SHERIDAN, H. W. SMITH.

Images