US371805A - Pipe-vise - Google Patents

Description

(No Model.)

W. VANDERMAN.

PIPE VISE.

Patented Oct. 18, 1887.

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FFIQE:

VILLIAM VANDERMAN, OF WILLIMANTIC, CONNECTICUT.

PIPE-VISE.

SPECIFICATION forming part of Letters Patent No. 371,805, dated Qctober 18, 1887.

Application filed August 18, 1887. Serial No. 247.230.

To-aZZ whom it may concern:

Be it known that I, WILLIAM VANDERMAN, a citizen of the United States, residing at \Villimantic, in the county of Windham and State of Connecticut, have invented certain new and useful Improvements in Pipe-Vises, which improvements are fully set forth and described in the following specification, reference being had to the accompanying sheet of drawings, in which- Figure 1 is a front elevation of a vise embodying my improvements, and Fig. 2 a side elevation of the same. Fig. 3 is a crosssection on line 2 z of Fig. 1, and Fig. 4 a similar View on line as.

My improvements relate to Vises for clamping tubing. during the act of cutting off or threading the same; and said improvements consist, first, of a spring-pressed latch for interlocking the two principal sections of a hinged vise, and, second, of a new form of crosshead for supporting the upper or movable jaws. By means of these improvements I am able to simplify somewhat the construction and to add to the convenience of the vise.

Aside from the changes above noted, the general construction of the vise shown in the an- This yoke is drilled and tapped from its upper curved end to receive a screw, d, provided with an operating-handle, d. The lower end of screw (1 is attached, in a manner hereinafter explained, to a two-part cross-head, e e, which travels upward or downward with said screw,

its ends being shaped to fit and slide on the limbs c 0, above mentioned.

On the outer side of limb c are integral lugs f, in which is hung a lever, 9, whose lower end, h, is shaped as a hook to engage and interlock with a corresponding hook, h, on projection b. The upper end of lever g is of a shape that can (No model.)

be conveniently grasped to operate it, and is held normally away from limb c by a spring, 2'.

The lower end of screw (:5 is grooved annularly to leave a head, it, and the companion y sections 6 e of the crosshead are chambered or cherried out to inclose said head, as shown in the sectional view, Fig. 4, the two sections of said cross-head being then securely clamped together by screws or bolts m. The lower side of the cross'head is also chambered to receive the upper pair of jaws, n it, said jaws being locked in position by pins or screws 0.

The lower jaws, q q, rest in and on the chambered base a, and are retained in place by screws 8.

When it is desired to use the vise, latch g is thrown out of locking engagement with hook h, and yoke c c is swung open, carrying with frames have been commonly used heretofore,

some of which have been provided with links on one section arranged to hook over a projecting lug on the companion section. When hung to the upper section and operated by gravity alone, the rusting or gumming up of such links has prevented their working satisfactorily. My latch, being actuated by the spring 71, is held in constant locking engagement with hook h, finds its place automatically as the yoke is swung to its closed position, and can be released only by considerable pressure on the upper or handle end, exerted against the force of spring 6.

Having described my invention, I claim* 1. In a pipe-vise, in combination with a hinged two-part frame, a springactuated latch for interlocking said parts, substantially as herein specified.

2. In combination with the yoke of a pipevise, a screw vertically movable therein, having its lower end headed, as described, and a cross-head formed of two companion sections cupped to inclose said screw-head, said cross- ICO head sections being clamped together by screws or bolts, substantially as and for the object specified.

3. In combination with the yoke of a pipevise, a screw vertically movable therein, having its lower end headed, as described, and a cross-head formed of two companion sections cupped to inclose said screw-head, chambered WVILLIAM VANDERMAN.

Witnesses:

J OHN B. FLYNN, FRANK H. ALLEN,

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