US987972A - Clamp for guard-rails. - Google Patents

Description

G. M. ERVIN.

CLAMP FOR GUARD RAILS.

APPLICATION FILED JULY 12,1907.

Patented Mar. 28, 1911.

INVENTUR I GU72. Erdzu Afro/Fun.

UNITED STATES PATENT OFFICE.

QEOBGE M. ERVIN, OF PEN MAR, PENNSYLVANIA, AS SIGNOR TO THE LORAIN STEEL COMPANY, A CORPORATION OF PENNSYLVANIA.

CLAMP non GUARD-RAILS;

simiflwiiwof LBtmrsPate-nt Patented iii 2K1. .28, 1911.. Application filed July 12, 1907. Serial No. 383,529.

of this character, \vherohy the gum-d rail can be adjusted with relation to the main rail, and rigidly clamped, with respect thereto, while the clam ing members are rigidly locked in their c amped position.

With these objects in View, my invention.

consists inthe novel construction, arrange- ..1nent, and combination of parts,all substan- :tia-lly as hereinafter described and pointed out in the appended claims, reference hecutaway portion 0 ing had to the accompanying drawings in which Figure 1, is a plan view ofsr main rail and a guard-rail secured thereto with my improved clamp; Fig. 2 is an end view thereof; Fig. 3,..isia sectional View on the line file-III (if-Fig; 1 Fig 4, is a perspective view of the clamping wedge; Fig.5,

is a perspective view of the wedge locking key.

A is the main rail, B the guardrail; both of the wellknownT-rnil cross-section. Par-v tially surrounding the rails is the clamp (3.,

The clamp C is made up of the bottomplate. c, and the upwardly and inwardly projecting sides 0 and. 0 The inner face ofthe side 0' is provided with the angular 'l'oeth 0 and the inner face of the side 0 is provided'wit-h the horizontal bearing faces c, and the cut away portion a", between these faces. As can be seen by referring to Flo's. 1 and 2, the inner face of the side a on a. taper from top to bottom, and from one end to the other for the purpose to he hereinafter-described.

Placed between the-main rail A, and the side 0 of the chimp C, is a chock D, having the teeth )1 on oneside thereof, which intermesh with, and engage the-teeth c of the side a, while a portion of the top; bottom and the olher side, engages the bottom of the I head the 10 of the foot, and the web resper'ztively, of one side of the main rail. This chock D can be cast or formed integral with the sulc'a,but I prefer to. make it separate. as it is easier and cheaper to manu-' torture. and also allows an interchanging of choclcs for rails of different cross-sectiou. G. (at, are spacing blocks which are placed between the main and guard-rail. The contiguous faces of these blocks are provided with ii torlor-king teeth 1, The outer faces engage lhe bottom of the head, top of the foot. and the web of the rails. flnterposed l'ietween the side a of the clamp and the guard-rail, is the wedge .l-i which is tzuiered with relation. to the vertical and horizontah This v edge H, engages the head, foot and web of the gnardwail on one side. and the other s de s,.prov1ded-,with

The hearing faces 11,71, of thewedge H,- on gage the hear-111g faces in the side o of the clamp C, and thetceth h" enter-the terlock with the teeth 17/ on the wedge H,

looking: it in its adjusted fp'osition. The other face of the key ZlS -pHJV lTiEd with the cutaway portion to allow theinsertion of a bar to engage and withdrew the key,

and j is a groove through which a ,c-o'tter 7c is passed, to retain the key in place-and prevenitit from being jarred fro nits seat.

When the inner face of the-head of the guard rail B becomes worn, and it is de sired to move the guard-rail toward the main-rail, the cotter 7c is withdrawnto release the key J, and the key is Withdrawn. The wedge H is now driven out, which will release the guard rail, and the spacing-blocks t, G. The blocks G. G, are now shifted the required distance to take up the Wear on the guardrail; and. the guard-rail is movedto* "'ard the main rail. The wedge H is re pinred and driven home, and theliey' J and its retaining cotter k are replace-cl.

In the manner described, I form an ad.

justable and secure guard rail. clamp, which firmly clamps the several members together.- By means of the longitudinal taper in the wedge H, the rails are firmly held in position in the, clamps, while the vertical taper ing sides a and 0 of the clamp hold the rails firmly on the bottom plate.

I do not wish to limit myself to the specific construction and arrangement herein shown and described, as variouschanges can be made without departing vfrom the spirit and scope of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent is 1. A guard -rail clamp, comprising a clamping-member having converging jaws, a removable chock interposed between one of the jaws and the main-rail, a plurality of teeth on the chock engaging recesses in the adjacent jaw, a spacing block interposed between the main and guard rail, and a wedge engaging the guardrail and the other jaw of the clamping member, said wedge be ing adapted to move vertically in securing vertical and horizontal planes, a guard-rail,

a spacing block between the main and guardrail, a wedge engaging the angular faced jaw of the clamping member and the guardrail and provided with projections, and a key engaging said projections to lock the wedge to the clamping member.

3. A guard-rail clamp, comprising a clamping member having converging jaws, a removable chock interposed between one of the jaws and-the main rail, the chock being provided with a plurality of locking members which engage and interlock with recesses in the clamping member, a spacing block interposed between the main and guard-rail, and a wedge engaging the guard- 'ail and the other jaw of the clamping memer, said wedge being verticallyv adjustable,

to tighten-the parts in place.

4 A guard-rail clamp, comprising a clamping member, having Lonverging jaws, v a' removable 'ehock interposed between one in the wedge H, and the inwardly project- I of the jaws and the main-rail, a spacing block interposed between the main and guard-rail, a wedge engaging the guard- "ail and the other jaw, and a key having a iilurality of teeth engaging recesses in the wedge to secure the wedge to the clamping member.

5. A. guard -rail clamp, comprising a clamping-member, having converging jaws, a movable chock il'iterposed between one of the jaws and the main rail, the chock being provided with locking members which engage and interlock with the chock and the clamping member, a spacing-block interposed between the main and guard-rail, a vertically tapering wedge engaging the guard-rail and the other jaw, a key for locking the wedge to the clamping member and means to secure the he in its locking position; substantially as cescribed.

6. A guard-rail, comprising a clamping member, having converging jaws, a movable chock interposed between one of the jaws and the main-rail, an adjustable spacing block.interposed between the main and guard-rail, and a wedge engaging the guard rail, and the other jaw of the clamping member, said wedge being adapted to move vertically to tighten the parts in place.

7. A guard rail clampcomprising a jaw clamping member, one of said jaws engagtion, and a horizontally extending key contacting with the wedge and angular jaw face to secure the wedge in place.

In testimony whereof I have aiiiXed my signature in presence of t-wo'witni ases.

GEO. M. ERVIN. Witnesses: Lonn'r'ro OCONNELL,

W. SMITH.

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