US100394A - Improvement in clamped molds for making- lead joints in pipe-connections - Google Patents

Description

`- To all whom it may concern pipes while the pipes are being laid.

nient @wie EDWARD GWYN, or TIFF'IN, onro.

, Letters Patent No. 100,394, dated March 1, 187i).

. IMPROVENIET IN CLAMPED `MQLIDS FOR MAKINGLAD JOINTS INPIPE-CDNNECTIONS;

The Schedule referred to in these Letters Ratent end makng part of the'same,

Be it known that I, EDWARD Gwyn, of Tifin, in the county of Seneca, and State of Ohio,V have inveuteda new and useful Glampto be Used in Running Lead in Joints of Pipes; and I dohereby'declare' that the following is a full, clear, and exact descripy tion ofthe same, reference being had to the accompanyingidrawings which form part Vof `this spccifcation.,l This inveutiouisdesigned for use on the joints, of

lts object is to provide for the better and more con;

` venieut closing of the mouth 'ofbell or the lead-cavity of the joiutwhile the melted lead is bei-ng poured therein;` and It consists in au elastic packing-ring carried within a hinged or jointed collar, whereby the same, in being clasped around the pipe and against the uiouth or entrance of the cavity, may effect a. better and more cou- `venient closing of said cavity than is practicable with the ordinary clay roll heretofore used for thatpur-v pose.

Referring to the accompanying drawings- Figure l represents a central section of a pipe-joint clamp-constructed according to my invention,y taken in a direction lengthwise of the pipe;

Figure 2 represents a. face view of the same;'and

Figure 3, a profile or side viewthereoi'.

Similar letters of reference indicate correspondingparts in the several drawings.

A is au elastic packing-ring or circular pad, composed of India rubber or other suitable material, and

is secured byv rivets f f tothe inner surface of a jointed collar, B. f

This eoliar or clasp B is constructed of iron or other metal, is hinged or jointed at x, so as toadmit of vbeing opened or closed, and has fitted, through cheeks b b, a thumb-screw, C, by which the hinged sections, when clasped around the pipe, are locked and tightened thereon preparatory torclosing the joint, which is donc in the usual way by the pouring in of molten lead, an annular cavity or pocket for its reception being left` between the two sections of pipe, as shown in red outline aty. l

This apparatus in its operation is adjusted upon the pipe at or about the point' usually occupied by the clay roll heretofore used for the purpose, so that the face a of the elastic ring A will close or obstruct the opening of the lead cavity or annular pocket of the pipe-joint, said face. a having a gate, c, for ingress of the molten lead, and being, also, beveled, if necessary, for electing a better and closer joint between it and the end of the opposite section of pipe,- and also to leave a portion of the lead projecting for calking.

What is here claimed, and desired to be secured by Letters Patent, isl 'lhe combination of the elastic ring A and the jointed collar B, substantially as and for the purpose herein described.

EDWARD GWYN. Witnesses' G. I. KEER, I. Gwynn.

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