US458932A

US458932A - Electric railway

Info

Publication number: US458932A
Authority: US
Publication date: 1891-09-01
Anticipated expiration: 1908-09-01

Description

(No Model.) 2 SheetsSheet 1.

W. O. WRIGHT. ELECTRIC RAILWAY.

No. 458,932. Patented Sept. 1, 1891.

(No Model.) 2 Sl1eets-Sheet 2.

W. C. WRIGHT.

ELECTRIC RAILWAY.

N0. 458,932. Patented Sept. 1,1891.

FlG -5 kw 30 A A; Fun-k zz 22 L 24 I J NrTED STATES PATENT OFFICE.

\VALTER COOK \VRIGI'IT, OF PHILADELPHIA, PENNSYLVANIA.-

ELECTRIC RAILWAY.

SPECIFICATION forming part of Letters Patent No. 458,982, dated September 1, 1891.

Application filed November 29, 1889. Serial No. 332,081. (No model.)

To all whom it may concern:

Be it known that I, WALTER CooK WRIGHT, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Electric Railways; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

In an application filed by me of even date herewith, 'Serial No. 331,475, I have shown and described a contact-roller carriage for use in connection with an electric-railway conduit wherein the conducting-trackways are located upon opposite sides of depending aprons forming a continuation of the longitudinal conduit-slot, said conducting-trackways being also secured at the top of the conduitand above the depending aprons, so as to be fully protected against drippings through the 0011- duit-slot. In said application the contactroller carriage proper is shown as suspended from a vertical plate traveling freely in the conduit-slot.

My present invention relates to certain ne w and useful improvements in the connections between said depending plate and the body of the electric vehicle to be propelled, the construction and arrangement of parts being such that the contact-rollers are normally held in good electrical contact with the conducting-trackways, while at the same time provision is made for loweri ng the entire carriage, so as to enable it to pass with safety intersecting trackways at street-crossings and the like, the inertia of the vehicle being relied upon to convey it past the point of intersection.

In the accon'ipanyingdrawings, illustrative of my invention, Figure 1 represents in plan the place of intersection or crossing of two electric railways embodying my improvements. Fig. :2 represents a central longitudinal section taken through one of the electricrailway conduits at the conduit'slot thereof and illustrates the position of the contactroller carriage at the point of intersection of the two conduits and also immediately before and immediately after passing said point. Fig. 3 represents in side elevation and partial section the upper portion of the plate-supporting connections as attached to the bottom of the electric car. Fig. a represents in perspective said connections as detached from the car-body, and Fig. 5 represents in side elevation and partial section a fragmentary view of a modification.

Similar numerals of reference indicate similar parts throughout the several figures.

Referring to the drawings, (3 indicates the wheel-tracks, and 7 the conduit-slot, of an electric railway, and 8 indicates the wheeltracks, and t) the conduit-slot, of a second electric railway, forming an intersection or crossing therewitl1,as shown in Figsl and 2. Depending aprons 10 form a continuation within the first-mentioned conduit of the conduit-slot 7, and similar depending aprons, whose lower edge is indicated in Fig. 2 by the dotted line 11, form continuations within the second-mentioned conduit of the conduit-slot 9. The place of intersection of the two conduits forms a space common to both, and the depending aprons of both conduits are interrupted at this space and do not pass across it. In like manner the trackway 12 for the 0011- tact-roller carriage It is interrupted at this common space. The tracltway 13 of the intersecting conduit on the contrary passes com pletcly across said space.

In Fig. 2, 15 indicates an electric car pro vided with the customary motor actuated by an electric current derived from the conducting-trackway 12 through the contact-roller carriage 14. Said contact-roller carriage It is suspended from the bottom of the electric car by the depending plate 16. At its upper end the depending plate is secured by means of the side projections 17 to a support 18. Said support 18 is sustained by the coiled springs 19 upon a basepiecc 20, provided with an appropriate aperture for the free passage of the depending plate 10, and the structure formed by the said support and its base-piece contained within suitable vertical guides 21, formed of angle-iron and having perforatedlugs 22 for attachment to the bottom of the car-body 15. Stops 2 24: are provided to limit the vertical movement of the structure Within the guides. Lifting-rods 25 are 0011- nected at their lower ends to eyebolt 26,0011- nected to the base-piece 20, and at their up ICO per ends said lifting-rods are connected to a link 27, which in turn is connected to a bell crank lever 28, journaled in suitable brackets 29, attached to the car-body. A rod 30 extends from the upper end of the bell-crank lever to a convenient point on the car where it can be readily manipulated by the operator.

In the construction illustrated in Fig. 3 I substitute for the link connection just described a pin and guide connection. The lower arm of the bell-crank lever is appropriately bent to-rest beneath the pin 31, and said pin is restricted to a movement of strict vertical progression by means of the guides 32,

consisting of a rectangular metallic strap secured to'the under surface of the car-body.

The parts of my invention being constructed and arranged as described and shown, the mode of operation will be readily apparent. IVhen the electric car is at rest, the parts are in the adjustment shown in Figs. 3 and 4 of the drawings, the base-piece 20 being in its lowermost position, thereby lowering correspondingly the support 18, and consequently the depending arm 16, carrying the contact-roller carriage 14. The contactrollers of the carriage 14 will consequently drop below the conducting-trackway 12 and the flow of current to the car-motor will be interrupted. I/Vhen the car is to be put in motion, the operating-rod 30 is drawn out in the direction indicated by the arrow in Figs. 3 and 4. This motion is transmitted through the bell-crank lever 28 and link 27 to the lifting-rods 25, thereby raising the base-piece 20. The support 18 is also raised through the intermediacy of the springs 19, which act as a cushion to any sudden or abrupt movement of the operating-rod 30. The depending arm 16 is therefore elevated in such manner as to bring the contact-roller carriage with a yielding pressure against the conducting-trackway 12, obviating excessive strains that would tend to loosen said trackway from its supporting-brackets.

It will of course be understood that the device shown in Fig. 5 will be operated in a similar manner, as the only difierence between it and the one shown in the remaining figures is in the connection between the bellcrank lever and the lifting-rods.

When the car 15 approaches the crossing or intersection with the other conduit, the operator moves the rod 30 so as to drop the contact-roller carriage in such manner that it- Will remain below the plane of the conductors 13' while passing the' place of intersection. During this brief period the flow of current to the car-motorwill of coursebeinterrupted,

but the inertia of the car will be sufficient to carry it past the place of intersection, where.-

upon the contact-roller carriage will again be raised to the position of contact.-

Having thus described my invention, what I claim is 1. In an electric railway, the combination, with a contact-roller carriage, of an arm for supporting the same, springs for sustaining said arm, and an operating-lever and intermediate connections for raising said springs and with them the arm and contact-roller carriage, substantially as described.

2. In an electric railway, the combination, with a contact-roller carriage, of an arm for supporting the same, springs 'for sustaining the said arm, an operating-rod and intermediate connections for raising said springs and with them the arm and contact-roller carriage, I and guides for insuring the vertical movefor supporting the same, springs 19 for sustainin g the arm, and base-piece 20, upon which said springs rest, an operating-rod 30, and a bell-crank lever 28, and lifting connections between said bell-crank lever and the basepiece 20, substantially as described.

6. In an electric railway, the combination, with a contact-roller carriage, of an arm 16 for supporting the same, springs 19 for sustaining the arm, and base-piece 20,11pon which said springs rest, an operating-rod 30, and a bell-crank lever 28, and lifting connections between said bell-crank lever and the basepiece 20, and guides 21 forinsuring the vertical movement of the base-piece 20 and arm 16, substantially as described.

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

WVALTER COOK \VRIGHT.

IVitnesses:

J WALTER ZEBLEY, JOHN C. PENNIE.