US1119532A

US1119532A - Tongs.

Info

Publication number: US1119532A
Application number: US72379312A
Authority: US
Inventors: Samuel R Parks
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-10-03
Filing date: 1912-10-03
Publication date: 1914-12-01
Anticipated expiration: 1931-12-01

Description

S. R. PARKS.

TONGS.

APPLIUATION FILED 0013, 1912.

1,119,532, Patented Dec.1,1914.

My awn SAMUEL R. PARKS, OF FOREST PARK, GEORGIA.

TONGS.

Specification of Letters Patent.

Application filed October 3, 1912. Serial No. 723,793.

To all whom it awn concern Beit known that I, SAMUEL R. PARKS, a

citizen of the United States, residing at' Forest Park, in the county of Clayton and State of Georgia, have invented certain new and useful Improvements in Tongs, of which the following is a specification.

This invention relates to animprovement in tongs.

The primary object of the invention is to provide a pair of tongs for handling bar iron while it is being heated and worked withmeans for securely grasping the material regardless of its configuration.

A further object of the invention is to provide a construction in which the bar is supported against longitudinal movement as well as against movement transversely of the tongs.

Inthe drawings: Figure 1 is a perspective viewshowing the jaw members open; Fig. 2 a side elevation, the jaw members being closed; Fig. 3 is a section taken on the line 33 of Fig. 2; Fig. 4 an end elevation of the jaw members supporting a bar which is square in cross section; Fig. 5 an end elevation of said members supporting a round bar; Fig. 6 a view showing the members supporting a bar which is rectangular in cross section; and Fig. 7 a view of said members supporting a semi-circular bar.

r The device comprises pivotally connected members 11 and 12. These members intermediate the handles and their jaw portions are provided with theenlarged substantially circular portions 13. The portion 13 of the member 12 is provided on its outer face with the boss 14 and on its inner face-that is, the face adjacent the other jaw member-with a boss 15 which is of smaller diameter than the boss 14. The jaw member 11 is formed bore ofv the member'll. The pin 18 is reduced in diameter as at 19, itsreduced portion extending within the bore of'the member 12. The pin is formed with heads 20 which contact with the bosses 17 and 18, holding the jaw memberstogether. It will be noted by this construction that the sections are so connected that whilea free pivotal movement is permitted,"the jaw members willbecaused to move in a fixed line with respect to each other.

The members cross at the point where Patented D ec.1,1914.

they are pivotally connected, and each of. i

said members is provided with a jaw. The terminal of the jaw 21 of the member 11 is disposed substantially at right angles to the body portion of the aw member. This offset terminal comprises diverging gripping members or prongs 23 and 24 which extend I radially from the jaw member, the inner faces 22 of the gripping members forming a substantially V-shaped gripping surface, the

contacting faces of which are plain. The

jaw 25 of themember 12 is of a length in excess of the length of the jaw of the member 11, the outer terminal of said jaw is reduced, being disposed at right angles to the jaw, saidouter terminal comprising gripping

members

26 and 27 of the same configuration as the gripping

members

23 and 24. The jaw member 25 is provided with the gripping

members

28 and 29 which eX-' tend radially from the member and which are disposed in parallel relation to

thegripping members

26 and 27. The two sets of gripping members which are; supported by the jaw member '25 are disposed'to extend on both sides of the ofi-set terminal of the jaw 21.

A stop 30 is formed integral with the jaw 25 being disposed on its inner face, the stop 7 being formed with the plain face 31 with which the stock which is supported contacts. The jaws 21 and 25 diverge from their pivotal connection, the portions 82 of, the jaw member 11 and'the portions 33 of the jaw member 12 being disposed parallel to each other, forming a space 34 whichTwill accommodate the head of a bolt when itis supported by the gripping member, the bolt lOU being prevented from moving longitudinally of the jaws by the stop 31.

It will benoted by this construction that the jaw members consist of coacting shaped gripping members, the peculiar configuration of the inner gripping surfaces of said members securely grasping and retaining the stock which ishandled regardless of whether the same be circular or square in cross section.

The many advantages of a construction of this character will be clearly apparent, as it will be noted that in heating and working the stock it will be securely supported, due to the fact that the stock is firmly gripped at three distinct points. The gripping members are disposed in staggered relation, assuring a binding contact which would not be secured were the gripping members arranged to contact with diametrically opposite portions of the stock.

While the radially extending gripping members are shown as formed integral with the jaw members, it will be apparent that they could be securedto the jaw members in order that they may be removed and replaced when worn or distorted. Each of the jaw members and the gripping members which are supported thereby are formed on their outer edges with strengthening ribs 36 which prevent the jaws from being readily distorted when handling the stock.

In Figs. 1- to 7 the jaw members are shown as supporting bars of different cross sectional desi It will be noted that as shown in Fig. l the jaws will contact with all four sides of the bar 37 which is square in cross section, and that in Fig. 5 a round bar 38 is shown as supported by the jaw members, it being noted that the diverging gripping members completely embrace the bar to support the same against displacement. In Fig. 6 a bar 39, rectangular in cross section, is supported by the jaw members, it being noted that the, gripping. members contact with the corners of the bar securely holding the same against slipping. In Fig. '7 the jaw members are illustrated as supporting a semi-circular bar 10, it being noted that one set of gripping members contacts with the edges of the bar and theother at diametrically opposite points with the cylindrical portion.

Attention is called to the fact that when a bar is supported by the gripping members, said member will contact with the same at three points longitudinally of the bar and at four points transiersely of the bar, this peculiar gripping action positively preventing the displacement of the bar.

Having described the invention, what I claim is:

1. A pair of tongs including pivotally connected crossed handles carrying co-acting j aws, one of said jaws having a laterally and inwardly directed gripping element at its free end provided with a V-shaped notch forming resultant inwardly diver ing work engaging fingers, the other of said jaws including spaced laterally and inwardly directed gripping elements at its free end having v shaped notches alined with each other and with the notch of the first jaw forming resultant pairs of inwardly directed work engaging fingers, the latter jaw being greater,

by the inner faces of the work engaging:

fingers of the first jaw.

2. A pair of tongs including plvotally connected crossed handles carrying co-act- 111g aws, one of said aws having a laterally and inwardly directed gripping element at its free end provided with a V-shaped notch forming resultant inwardly diverging work engaging fingers, the other of said jaws including spaced laterally and inwardly directed gripping elements at its free end having V-shaped notches alined with each other and with the notch of the first jaw forming resultant pairs of inwardly directed work engaging fingers, the latter jaw being greater in length in order that swinging together of the jaws may seat the gripping element of the first jaw between the spaced gripping elements of the second jaw, said second jaw having a laterally and inwardly directed stop spaced between the innermost of its gripping elements and the point of pivotal connection of the handles and in alinement with the notches of the gripping elements, the inner side of the second jaw between this stop and adjacent gripping element being cut-away to lie in an outwardly offset plane from that portion of the inner side of said second jaw extending between the gripping elements thereof.

3. A pair of tongs including pivotally connected crossed handles carrying co-acting aws, one of said aws having a laterally and inwardly directed terminal formed with a V-shaped notch providing resultant inwardly. diverging faces, the other of said jaws having its inner side oppositely beveled to form inclined outwardly diverging faces engageable byithe faces of the notch of the first jaw.

at. A pair of tongs including pivotally connected crossed handles carrying coacting jaws, one of said jaws having an inwardly directed gripping element, the other aw in cluding spaced inwardly directed gripping elements, the jaws being of unequal length,

may seat between the gripping elements of whereby the gripping element of the first the second, the second jaw having an in- In testimony whereof I aflix my signature wardly directed stop spaced from the innerin presence of two Witnesses. most of its gripping elements, the inner side of the second jaw, between this stop and ad- SAMUEL PARKE" jacent gripping element, lying in an out- Witnesses:

wardly ofi'set plane With respect to such A. L. ANDERSON,

gripping element. CARL DICK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.