US834484A

US834484A - Tongue-switch.

Info

Publication number: US834484A
Application number: US25168505A
Authority: US
Inventors: Francis Nather
Original assignee: Lorain Steel Co
Current assignee: Lorain Steel Co
Priority date: 1905-03-23
Filing date: 1905-03-23
Publication date: 1906-10-30
Anticipated expiration: 1923-10-30

Description

I j PATENTED 001-30, 1906.. I F. NATHBRQ TONGUE SWITCH.

"LTILIOATIOH FILED MAR. 23. 1905.

P (rm/um.

UNITED STATES PATENT OFFICE.

FRANCIS NATHER, OF JOHNSTOWN, PENNSYLVANIA, ASSIGNOR THE LORAIN STEEL COMPANY, A CORPORATION OF PENNSYLVANIA.

TONGUE-SWITCH- Specification of Letters Patent.

Patented Oct. 30, 1906.

Application filed March 23, 1905. Serial No. 251,685.

and useful Improvement in Tongue-Switches,

of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specification.

My invention has relation to certain new and useful improvements in tongue-switches, and is designed to provide means for preventing the tongue from hammering down at its heel portion under the blows of passing car-wheels.

With this object in view my invention consists in the novel construction, arrangement, and combination of parts, all substantially as hereinafter described, and pointed out in the appended claims, reference being had to the accompanying drawings, in which Figure 1 is a plan view of a portion of a tongue-switch, Fig; 2, a longitudinal section through the heel portion thereof, and Fig. 3 a transverse section on the line 3 3 of Fig. 1.

The letter A designates the body portion of the switch structure, and B the movable point or tongue, having the heel pin or pivot I), provided with a bearing at a in said body portion. These parts may be of any approved type of construction. As shown, the structure is also provided with a portion O of harder material, which forms the pocket for the tongue and the head portion of the switch structure. Formed in the bottom part of the heel portion of the body A below the tongue-pin bearing is a cavity or chamber D, open at one side, as indicated at d. Placed in this cavity, embedded in some suit able supporting and retaining material F, which can be poured around it in a fluid state, is a bearing-piece E, of hard metal, upon the upper surface of which rests the lower end of the pin B.

In assembling the structure after; the tongue has been properly fitted to its seat the bearing-piece E is placed in position, and the supporting and retaining metal F is poured about it. The material used for this purpose should be one whose resistance to compression I is relatively high and which has sufficient resistance to stand the pounding action which the tongue receives in service. I have found spelter to be well adapted for the purpose, but other material may be used.

The purpose of the piece E is to receive the downward thrusts of the tongue-pin, and thus relieve to a considerable extent the bearing-surface underneath the heel of the tongue from the effects of such thrusts, which tend to rapidly cut away such bearing-surface.

My invention contemplates, broadly, the use of a bearing held against the lower end of a tongue-pin. This bearing may be provided in other ways than that shown. Hence I do not wish to be limited to such specific em bodiment of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a tongue-switch, the combination with the movable tongue having a heel pin or pivot, of a bearing-piece retained in the switch structure in contact with the lower end of said pin or pivot and arranged to receive the downthrusts of the latter.

2. In a tongue-switch, the combination with a body portion having a pocket for a movable tongue, a bearing for the tongue pin or pivot, and a chamber or cavity below said pin or pivot, of a bearing-piece in said chamber or cavity adapted to receive the downthrusts of the said pin or pivot.

3. In a tongue-switch, the body portion having a bearing for the tongue pin or pivot, the chamber or cavity below said bearing, the bearing-piece in said chamber or cavity, and the retaining and supporting material for said bearing-piece.

4. A tongue-switch having its tongue pin or pivot provided with a bottom hearing which can be adjusted to said pin or pivot and secured in such adjustment after the tongue has been seated.

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

FRANCIS NATIIER.