US443027A - Street-railway construction - Google Patents

Description

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R. T. WHITE.. STREET RAILWAY GONSTRUGTION.

No. 443,027. Patented Dec.. 16, 1890.

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UNITED STATES PATENT OEEICE.

vREYNOLDS 'F.lVIIIrFE, OF BOSTON, MASSACHUSETTS.

STREET-RAILWAY CONSTRUCTION.-

SPECIFICATION forming part of Letters Patent No. 443,027', dated December 16, 1890. Application led September 30, 1889. Serial No. 325,604. (No model.)

.To all wiz-0m t may concern:

Be it known that I, REYNOLDS T. WHITE, a citizen of the United States, residing at Boston, in the county of Suiolk and State of Massachusetts, have invented a new and useful Improvement in Construction of Street-Railways, of which the following is a specifica tion.

The object of my invention is to produce a substantial street-railway track that can be easily laid and repaired; and the invention consists in the peculiar form of the rails and chairs and means of securing the rails to the chairs without holes inthe rails, as hereinafter fully described, and pointed out in the claims.

Referring to the accompanying' drawings, Figures l and 2 represent vertical cross-sections of rails embodying my invention. Fig. 3 is a vertical cross-section of a rail and an end View of a chair and means for securing the rails to the chairs. Fig. t is a side view of a single or intermediate chair which supports the rail between joints with clamp removed. Fig. 5 is a side elevation of a double or joint chair with -clamps removed. Fig. 6 is a plan view of a clamp for a single chair. Fig. 7 is a cross-section of saine, taken on line a: of Fig. G. Fig. 8 represents a Vertical cross-section of a center bearing-rail.

A represents the tread of the rail, which may be beveled or rounded on the outside of the head, as shown at a.

B2 is a paving-block slightly below the head of the rail, and a the flange or wagon-tread of the rail, which maybe made of any desired form.

B B are pendent sides rolled integral with the tread A and iian-ge a.

l) b are projections rolled on the lower outside edges ot the pendent sides B B with their upper edges c c beveled to any suitable angle or curve.

D are chairs made of iron of suitable sine, composed of standards E, running longitudinally with the rails A and carried up around under the head of the rail A with a web c between them and brackets e on their outside at right angles to standards F., thus making a very substantial chair. A small lug f is formed on the top of the chair D to iit under the head of the rail above the chair. Upon the standards E near their upper ends I make an olset, so as to form a seat for the lower edge of the rail to rest upon.

F is a boss with its lower edges formed to correspond with projections b and angles c c on the lower edges ot' the pendent sides B B of rails A.

G G are clamps, made of the form shown, of suitable size, with their ends formed so as to fit over the upper edges of projection Z7 on the lower edges of the rail and the lower edges of bosses F on the sides of the chair.

II is a bolt that passes through the clamps G aud chair'D, so that when the bolt I-I is screwed up tight it forces the beveled ends of the clamps G G ont-o the corresponding beveled surfaces on lower edges of the boss F on the chair D and the beveled surface c on the lower edges of the pendent sides B B of the rail A, thus drawing down and holding the sides ot' the rail very solidly to the chair.

In Fig. 5 I show two adjacent rails supported on one chair to form a connectingjoint, space being left between the ends of the rails to allow for expansion and contraction. This chair is made ot' sufficient length to insure a solid bearing for the ends of the rails, and is of the same form as shown in Fig. 3, with addition of strengthening-ribs h between standards E E, as shown by dotted lines. In Figs. e and 5 the clamps are omitted so as to show the construction of the chair. In single chairs the clamps would be about the size shown in Figs. 6 and 7, and the clamps for double chairs for securing the ends ofthe rails would preferably be made the length of the chair and with as many bolts as necessary to hold the ends of the rails secure. The chairs shown are made to rest upon wooden sleepers, but the base of them may be enlarged so as to be set in concrete or be tamped in the ground. If tamped in the ground, bolts Il may be made in the form of tie-rods, so as to keep the rails to proper gage. I have shown the chairs made with web c about in the center of the chair. This web may be dispensed with by carrying the standards E across the ends of the chairs, as shown in dotted lines in Figs. et and 5, thus making roo the standard of box form and open at the botv tom and of greater strength and stability than when made with only the central web.

Although I have shown the chairs made of cast metal, they may be made of wrought metal or of wrought and cast metal. The rails maybe made of the side or central bearing type, as shown, or any other form, and for electric roads, where it is necessary to keep the head of the rails clean to insure perfect traction, I propose to cut off the outside corner of the head of 'the rails, as shown, and have the paving B2 come up to the lower edge of the incline, thus giving carriages but little obstruction in crossing the tracks and leaving the tread of the rail above the paving,there by decreasing the liability of dirt collecting on the head of the rails- Some of the advantages of this construction are that the rails are secured to the chairswithout having bolt-holes in the rails. Excavations need not be made so accurately for the sleepers. A great saving in handling and laying the rails and a stronger rail is obtained. Rails are easier laid and removed. In fact, this form .of construction overcomes all previous objections to girderfrails, as the pavement on settling cannot drop under the tread and flange of the rail, and this method of fastening holds the rails solidly down on the chairs, as well as holding the sides of the rails close to the sides of the chairs, thereby preventing the rails from working loose, which cannot be done with fastenin gs that only hold the rails to the chairs one way, and the projections on the lower edges of the pendent sides increase the strength of the rail.

I disclaim the following combination, namely: a ginder-rail having a top of an approved ksection and .depending web along each edge provided at bottom with laterally-projecting iianges, in combination Ywith a chair having a seat portion fitted to the back of said top of the rail and provided immediately below the lower edges .of the rail-webs with a transverse boltway and with Vlateral projections having faces matching those of the rail-flanges, a pair of clamp-plates having -iianges or projections opposed to said faces and having central boli-holes, and a clamping-bolt passing' through said boltway from side to side, substantially as hereinbefore specified.

Having thus described my invention, what I claim isl. Rails for street-railways, having pendent sides without bolt-holes, but having a projection on each of its sides at or near their lower edges, in combination with chairs iitting between said sides and extending up under t-he head of the rail and having a seat for the lower edgesof said pendent sides to rest upon, the rail and chair being secured together by clamps engaging projections on sides of rail and chair by a bolt or bolts passing through the clamps and `chair below the rail, substantially as shown.

A street-ailway track constructed of double girder or channel iron form of rails without bolt-holes, but having suitable fillets on their outer sides at or near 4their lower edges, and a metal chair properly ribbed and havinga seat for the lower edge of said pendent sides to rest upon, said rails and chairs being held together by .clamps Vand bolts, substantially as shown.

In the within-described system 0f constructing street-railways, the combination of rails made with pendent sides with a projection on or near the lower edges of said pendent sides on their outside, with chairs placed= at suitable intervals under the rails and litting up close under the head and iiange vand between the sides of the rail, and having pro.- jections .on their sides which form a seat for said pendent sides to rest upon, said lprojections also forming a stop by which a clamp of the form shown engages the projections on the sides of the rails and chairs, whereby the rail and chair are secured together by a bolt or bolts passing through the clampsland chairs bellow the rai-l, substantially Ias shown and d escribed.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

REYNOLDS T. W-lllTlil.

Witnesses:

Il. L. iloncnoss, FRANK A. Fist-inn.

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