US48017A

US48017A - Improved pipe-tongs

Info

Publication number: US48017A
Authority: US
Publication date: 1865-05-30
Anticipated expiration: 1882-05-30

Description

UNITED STATES PATENT OEErcE., t

SAMUEL F. -GAMAGE OF BOSTON, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND N. M. DOV, OF SAME PLAGE.

IMPROVED PIPE-TONGS.

Specification forming part of Letters P To @ZZ whom, o may concern,.-

Be it known that I, SAMUEL F. GAMAGE, of Boston, in the count)7 ot' Suffolk and State of Massachusetts, have invented a new and Improved Pipe-Tongs; and I do hereby declare that the following is a full and exact description thereof, reference bcing had to the accompanying drawings and the letters ot ret'- erence marked thereon, making a part ot' this specification.

Figure l is a simple side View of the pipetongs. Fig. 2 is a top view of the same. Fig. 3 is a section of the stationary jaw-lever, showing` the slot and the opening` for the screw in the same. Fig. 4 is a view ot' the screw-shank and fulcrum detached from the instrument, showing the several parts connected therewith.

The letter A represents the whole instrument; a, the stationaryjaw-lever; I), the moving or slidingja\\'levci'; c, thc slot in the statiouaryjaw-lever; d, the opening for the screw in the same; E, the milled nut; f, the screwshank; g, the turning pin or journal; h, its square shoulder; i', its bearing part for sliding jaw-lever; lc, the screw for retaining the screw-shank in place.

Now, in order that others may be enabled to understand better the nature and use ot' my invention and its superiority over all other instruments now used to ett'ect the same purpose, I will proceed to explain t-he same and show wherein its superiority consists.

The pipe-tongs muy be made of steel, iron, brass, or any metal or material which will et'- t'cct the intended purpose. The several parts ot' the saine are the stationary jaw-lever a, the movable jaw-lever b, and these two jaw-levers cross each other and are held together by the screw-shankfand the fulcrum in the manner exhibited in Fig. 2. A It will be perceived, also, that the screw, screw-shank, and the parts of atent No. 48,017, dated May 30, 19,65.

the fulcrum designated in Fig. 4 by the letters g 7L v3 are formed of one solid piece, so that it is stronger and less liable to get out of order than it' made by two or more pieces. By means, also, of the arrangement of the fulcruni sliding in the slot c in the stationary jaw-lever -and carrying` with it the movable jaw-lever, this instrument may be used for pipes of any size desired.

This movement of the jaw-lever b is effected by turning the milled nut E forward or backward bythe thumb, or thumb and finger. The milled nut is protected by heilig partially let into the slot and by the projection on the stationary jaw-lever, as seen in Fig. 2. The screw falso passing ino this opening, is entirely protected. It' it projected beyond the easement or opening, or was turned from wit-hout, instead of being stationary, by carelessly throwing down the instrument while in use, it might be easily injured or ruined, so that its superiority over other instruments used for the same purpose is clearly seen.

The use of the instrument is well known and need not be further explained. It may be readily taken apart, when necessary, by Withdrawing the screw k and the nut from the end ofthe fulcrum.

Vha-t I claim as my invention, and desire to secure by Letters Patent, is-

The solid screw and fulcrum, designated, respectively, by the lettersj'g h z', as operated by the milled nut E, applied and arranged in the opening and slot in the stationaryjaw-lever, substantially in the manner and for tue purposes above specified.

sAM'UEL E. GAMAGE.

Witnesses:

J. L. NEWTON, NAHUM M. Dow.