US446083A - frank m - Google Patents

Description

(No Model.)

F. M. SPAULDING. RAILWAY CROSSING GATE.

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UNITED STATES P TENT OFFICE.

FRANK M. SPAULDING, OF KALAMAZOO, MICHIGAN, ASSIGNOR OF ONE-HALF TO FRANK C. BALCH, OF SAME PLACE.

RAILWAY-CROSSING GATE.

SPECIFICATION forming part of Letters Patent No. 446,083, dated February 10, 1891.

Application filed June 7. 1890. Serial No. 354,629. (No model.)

To all whom it may concern: parted to the gear E and the shaft H, at which Be it known that I, FRANK M. SPAULDING, time, of course, all the parts H, D, G, and E a citizen of the United States, residing at will revolve together. The function of the Kalamazoo, county of Kalamazoo, State of spring G is the same as in the other applica- 5 Michigan, have invented a new and useful tion referred tothat is, the shock is cush- Railway-Orossing Gate, of which the followioned by being first imparted to the spring, ing is a specification. 7 thus insuring greater safety to the mechan- This invention relates to that class of railism and preventing a too sudden downward road-crossing gates which are operated by throw of the gate to its horizontal position IO hand, and more particularly relates to a pendacross the roadway. The spring G performs ing application of mine bearing even date still another function, viz: said spring yields herewith, Serial No. 354,628, in which the in conformity to the swaying motion of the gates are operated by the'wheels of the train. gate in the wind when in its vertical'position.

The present invention consists in a con- Referring to Fig. 1, a chain or cable Z is atz 5 struction and combination of parts whereby tached to the cable k, and passes around a pulthe gates are operated by hand. ley and across the track, where it is shown In the drawings forming a part of this specibroken. In use this chain is designed to pass fication, Figure 1 isa broken plan view. Fig. to another apparatus like that shown in Fig. Bis an elevation with parts broken away. Fig. 2; but as it forms no part of this application 2o 3 is a section on line 4. din Figs. 1 and 2,1ookno further mention of it need be made. L ing from a point at the right. Fig. 4. shows i h is an ordinary signal pivoted to the enlarged lettered details from Fig. 2, and Fig. gate 0 at t and provided with a rubber spring 5 shows enlarged lettered details from Fig. 3, at the lower end to cushion the shock when it parts being in section on line at 4 in Figs. 1 strikes the ground during the downward 25 and 2. movement of the gate.

Referring to the lettered parts of the draw- In Figs. 1 and 2 is shown a signal-bell at c. ings, the gate 0 is composed in the ordinary The clapper-lever c of this bell is provided manner of two truss-bars, one each side of with a pivoted dog d, in a position for a prothe upper end of the case A,.provided at the j ection f on the sheave D to come in, contact 30 rear end with weights at a. The gate is atwith said dog and thus operate the bell just tached to the axle H of the gear-wheel F, before the gate starts to swing down and thus said axle having bearings in the case A. Begive warning to pedestrians. The leverc is low the axle H is a shaft H, upon which is provided with a projection g, and the end of loosely mounted a sheave D at one end of the dog d comes in contact with said projec- S5 3 5 said shaft. On the other end of said shaft is tion when the sheaveD is turned in a .direcrigidly attached a gear E by means of a settion to lower the gates. (See the arrow in screw X. Upon the shaft H and between the Fig. 4..) By this means when the sheave D sheave D and the gear E is a spiral spring G. turns in the opposite direction the dog dwill The ends of this spring are attached to the tilt, as in dotted position in Fig. 4, and thus o gear E and the sheave D at o 'u. The gear E keep free from the projection f.

of the shaft H meshes with the gear F of the At 2) b in Figs. 1 and 2 are stops to pre shaft H. A chain or cable 7t leads from the vent the gate from swinging down too low. hand mechanism below described to the In connection with the foregoing, which is sheave D, and is attached thereto the same also shown in the application above referred 5 as the chain or cable in the application reto, I employ the below-described mechanism ferred to, and the operation, so far as the for operating by hand. At a suitable disabove-described construction is concerned, is tance from the gate is a bracket B, mounted thesamethatis,when actuated bythe cable upon and projecting above the ties of the the sheave D revolves on its shaft until the track. An axle bearing a sheave J has bear- I00 50 spring G is tightly compressed and the tenings in said bracket, said axle also beingprosion becomes such that the motion will be imvided with a gear L. The chain or cable 70 is mounted upon the sheave J. A crank-shaft bearing a crank-wheel I has bearings in the upper end of the bracket B. This crankshaft is provided with a gear K, which meshes with the gear L. Thus by turning the crankshaft the chain or cable is wound on the sheave J, which operates the mechanism in the case A, as hereinbefore described. A pivoted" dog m engages the teeth of the gear K. By means of this dog the operator locks the mechanism so as to hold the gates in their down position, and when the dog is freed from the gear the gates will swing to an upright position, owing to their Weighted end.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. The combination of the case, an axle havingbearings in the upper end of said case, the gate attached to said axle, a shaft having I hearings in the case below the axle, a sheave loose upon said shaft, gears connecting the shaft and axle, the gear of the shaft being rigidly attached thereto, a cushioning-spring between the gear and sheave attached at its ends to said gearand sheave, a gear-connected crank-wheel and sheave, and a chain or cable attached at the ends to the sheave, substantially as set forth.

2. The combination of the case, an axle having bearings in the upper end of said case, the gate attachedto said axle, a shaft having hearings in the case below the axle, a sheave loose upon said shaft, gears connecting the shaft and axle, the gear of the shaft being rigidly attached thereto, a cushioning-spring between the gear and sheave attached at its ends to said gear and sheave, a chain or cable attached to said sheave, and suitable mechanisms for drawing on said cable by handpower, substantially as set forth.

In testimony of the foregoing I have hereunto subscribed my name in presence of two witnesses.

FRANK M. SPAULDING.

Witnesses:

L. N. BURKE, BELLE O. FFEEMAN.

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