US713015A - Surface-contact structure. - Google Patents

Description

l w. s. PoTTER. SURFACE CONTACT STRUCTURE.

(Application med Feb. 2s, 1901.)

- APalte'ted Nov; 4, |902.

Wnneses; Inventor- WiUarhjB-Potber @Nite-*D STATESl PATENT OFFICE.

WILLIAM B. POTTER, OF SCHENECTADY, NEW YORK, ASSIGNOR TO GEN- ERAL ELECTRIC COMPANY, A,CORPORATION OF NEW YORK.

SURFACE-CONTACT STRUCTURE.

ESPLEGIEICATEGN fcrrmhng part of Letters Patent No. 713,015, dated November 4, 1902.

Original application iiled October ll, 1897, Serial No. 654,793. Divided and this application led February 28,1901. Serial Y IIa/19,220. (No model.)

This a division of the application for pat-v ent, Serial No. 654,793, filed October ll, 1897, and the invention relates to anovel construction of surface-contact stud adapted for use in sectional-conductor electric railways.

The drawing is a vertical section of the entire structure, showing the stud itself in ele- A vation.

It is important in structures of this characl ter that the stud should be securely mounted in its operative position, so that it will not be disturbed or rendered inoperative by heavy city traffic and the engagementof collectorshoes, and at the Sametime that the studv should be adapted for ready removal when its upper surface is worn or it is damaged in any respect. Furthermore, it is especially important that the stud should be in good electrical contact with the lower connections or leads, and this contact should be such that the stud can be readily removed for thepurpose of inspecting the connections.

In the drawing the stud R is shown in ele-v vation and as having an enlarged head or but- .ton H, which is exposed in the roadway and adapted to be engaged by the collector of the car. The entire stud, with the exception of the exposed upper-surface and lower projection, is embedded in or surrounded by a body of insulation S, such as vitrilied brick. The stud and insulation together are adapted to be moved and replaced independently of all other parts of the structure.

P represents .a suitable metallic tie, on which is mounted a receptacleT by means of bolts B, in which receptacle the block of insulation S is held bysuitable material C, such as cement. The roadway is built up around the block S, so that only its upper surface is exposed, and when it is desired to remove the stud the block S is simply loosened in the receptacle T and lifted up.

Suitably located, as in a compartment Jformed by the metallic tie P, is an insulatingbase Q, formed with an upper opening of two diierent diameters. A metallic support Q2 rests ou the shoulder formed in the upper opening of the insulating-base, and to this` support are secured the flanges E of a contact-sleeve Q. This sleeve Q' is adapted to receive the depending projection R of the stud R, and its upper edge O is made flaring, so that the projection R' will be properly guided into the sleeve when the block S is inserted in the receptacle T. The sleeve is split, as shown at L, in order that it may expand when the projection R enters it and `hold the projections with a spring-grip in good electrical contact. The lower flanges F are secured to the support Q by means of bolts M, the heads ofvwhich are located in the portion of the upper opening in theinsulating-base Q which has a small diameter.

The right-hand bolt and nut, which hold the iiange to the support, also constitute a binding-post for the lead 1, which completes the circuit connection of the stud. It will thus be seen that when the stud B., with its surrounding insulation S, is inserted in the receptacle T its'lower projection R will engage the upper Haring edge O of the split sleeve, so that theprojection R will be guided centrally in the sleeves and will be held therein with good electrical contact. Whenever itis desired to remove the stud when its upper working surface is worn or the stud is otherwise inoperative, it can be removed to automatically break the contact of the stud wlth the lead l. A further advantage of the ready removability ot the stud and its insulation is that it leaves the lower connection parts in lfull view for the purposes of inspection or repairs.

What I claim as new, and desire to secure by- Letters Patent of the United States, is-

l. In a removable surface-contact, a metallic stud surrounded by insulating material, in combination with a support, a terminal secured beneath said support, and a projection on the stud arranged to make electrical contact with said terminal.

2. In a removable su rface contact, the com- IOO bination of a metal stud having an enlarged head, molded insulating material surrounding the stud, a metal base for the insulating material adapted to be bolted to a cross-tie, a terminal secured within the tie and connected to the source of supply, anda projection on the stud arranged to make electrical contact with the terminal.

3. In aremovablc surface contact, the combination of a central metal stud having enlarged ends, insulating material around the stud, a metal base for the insulating material bolted to the cross-tie, an insulating terminal support secu red to the cross-tie, an upwardlyextending contact carried by the support, means for securing the lead from the source of supply, and a projection on the stud arranged to establish connection with the con. tact.

4. A surface-contact stud having integral enlarged ends, and having insulating material molded about it, so that only its two ends project from the insulation.

5. In combination, a hollow split metallic sleeve, and a surface-contact stud removably mounted therein.

6. In combination, a hollow split metallic sleeve, a surface-contact stud having insulating material molded about it, so that only7 its two ends project, the lower end being adapted to engage in the hollow sleeve; and a sepa-`V rate support for the insulatinggnaterial.

7. A single removable structure for surface-contact railways, which comprises a contact-stud having enlarged ends and its surrounding insulation, said insulation being molded about said stud.

8. Asurface-contactstudsurroundedbyinsulating material and projecting downwardly therethrough, in combination with means for connecting the projecting portion with the circuit-lead and an independent support for said connecting means.

9. The combination with a removable surface-contact stud, having integral enlarged ends embedded in insulating material, of a lead carried out from the bottom.

10. In combination with a surface-contact stud, a terminal whichcomprises a hollow split metallic sleeve, and a lead secured thereto.

11. In combination with a surface-contact stud, a terminal which comprises a hollow split metallic sleeve having a flaring upper edge.

12. In combination with a surface-contact stud, a terminal which comprises a hollow split metallic sleeve provided with flanges, and a base-plate to which said flanges are secured.

13. A terminal for a surface-contact stud, which comprises a hollow split metallic sleeve provided with flanges, a connecting-lead, a base-plate, and means for securing said parts together.

14. A terminal for a surface-contact stud, which comprises an insulating-base, anda metallic sleeve secured thereto, and adapted to receive the lower end of the stud.

15. A terminal for a surface-contact stud, which comprises an insulating-base, a metallic support thereon, and a metallic sleeve having flanges which are secured to said support.

16. In a removable surface contact, the combination of a stud of conducting material surrounded by insulating material and having its ends projecting therefrom, of a terminal comprising a split metallic sleeve pro- 4vided with flanges, a connecting-lead, a baseplate, and means for securing said parts together.

17. In a removable surface contact, the combination of a stud of conducting material surrounded by insulating material and having its ends extending therethrough, a support for said insulating material and stud, a terminal adapted to receive one end of said stud, and a separate support for said terminal.

In witness whereof I have hereunto set my hand this 25th day of February, 1901.

WILLIAM B. POTTER.

Vitnesses:

BENJAMIN B. HULL, EDWARD WILLIAMS, J r.

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