US1812747A - Tongs - Google Patents

Description

June 30, 1931. c. J. JORGENS'EN 1,812,747

TONGS Filed April 26, 1930 2 Sheets-Sheet l 672/73 CM/Z9622687Z INVENTOR ATTORNEY E June 30, 1931. c. J. JORGENSEN TONGS Filed April 26, 1950 2 Sheets-Sheer 2 Patented June 30, 1931 I F 1 C E CHRISTIAN J. JORGENSEN, OF DAG-MAR, MONTANA TONGS Application filed. April 26,

This invention relates to pincers or pliers of a type primarily designed for the removing and replacing of sprocket'chain links.

One of the principal objects of the invention contemplates the provision and arrangement of pockets in the aws of the tool to accommodate appropriate portions of the immediate links.

Another object of the invention consists of guides for the links during the removing and replacing thereof.

With the above and other objects in view, the invention further consists of the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the appended claims.

In the drawings:

Figure 1 is an elevation of the present invention.

Figure 2 is a side elevation thereof.

Figure 3 is a fragmentary elevation of the invention taken from the opposite side thereof.

Figure 4 is a perspective view of the component sections of the tool.

Figure 5 is a view similar to Figure 1 with the jaws open and in the process of separating links.

Figure 6 is a View similar to Figure 2 showing the invention in use during the removing action.

Figure 7 is a view similar to Figure 6 taken in oppositely disposed relation thereto.

Figure 8 is a top plan view of the inven tion while in use.

Figure 9 is a view similar to Figure 5 taken in oppositely disposed relation thereto.

Figure 10 is a fragmentary elevation of 40 one of the aws of the tool accommodating an appropriate portion of a chain link.

Referring to the drawings in detail wherein like characters of reference denote corresponding parts, the reference characters 10 45 and 11 indicate the handles for the form of tool which may be otherwise termed as a pair of tongs, pliers or pincers, and each of which having aws 12 and 13 IBSPBCtlVBlY. The usual pivot bolt or fulcrum, such as indicated 50 at 14:, having rigid connection with the jaw 1930. Serial No. 447,681.

larged ends 15 of a slot'16 in the jaw 13 will permit adjustment to the jaws, in the conventional manner, to facilitate accommodation of those of the linksof a. "chain or'other con-- i:

nection to be assembled or dismantled.

The shorter jaw 13 is enlarged, as at 17 upon the inner side thereof-to provide suitable backing for an a rcuate shaped seat 18 recessed for an apl'areciabledis'tance' therein at right angles to the'disposit'ion of the enlargement. The outermost end of the jaw 13 is gouged, as at 19, in parallelism with the bottom of the recessed'portion 1-8 for purposes to be better understood in the following description of the invention. A slotted portion 20 is also provided in the enlargement 17 for the jaw 13 and in communication with one end of the recess 18.

The longer jaw 12 is laterally and outwardl'y obliquely inclinedas at 21 and shaped to provide a curved face '22 aligned with that of the bottom wall of the recess 18 in the manner suggested in Figure ,2 of the drawings.

A fin 23carried by and laterally projecting from the jaw 12 beyond; the outermost extremity of the jaw 13 is aligned with that of a right angularly disposedrecess 24: in that portion of the jaw 12 extending beyond the jaw 13. A This construction is best shown in Figures land 4-.

On sheet 2 'of the drawings, that is, in Figures -5 to 10 inclusive, I have shown the manner and method of employment of the form of pliers for the removing and replacement of the links of a chain or other connection of the sprocket type employed to a great extent upon agricultural implements and the like. These forms of links, aforementioned, have sleeve-like terminals split horizontally thereof to accommodate the companion links from the sides thereof. The split portions of the sleeves are usually constructed so that it is necessary to forcefit the links whereby the sleeves will contract to narrow the slits when the assembly is completed and to obviate accidental displacement or disconnecting of any of the links. 4

In Figure 5 the invention is shown in position for disconnecting the link assembly.

Figure 6 shows the fin 28 in use for driring one of the links through the slit or slot in the sleeve. Figure 7 shows the groove 24 in use to accommodate one side edge of the link having its connection pushed through the sleeve-like portion of the immediate companion link. Figure 8 shows the Figure 5 stage of the process in top plan. Figure 9 is illustrative of the manner of replacing or otherwise assembling the chain links, whereas Figure 10 shows the manner of holding the sleeve-like extremity of the companion link within the recessed portion 19 and slot 20 during both operations.

Although I have shown and described my invention as being primarily designed for the removing and replacement of chain links of the character described, it is obviously apparent that other forms of chain links may be removed and replaced with equal effect through the aid of the present invention.

The invention is susceptible of various changes in its form, proportions, and minor details of construction, and the right is herein reserved to make such changes as properly fall Within the scope of the appended claims.

Having described the invention, what is claimed is:

1. A chain-link tool comprising pivotally associated long and short jaws, the longer jaw having a curved surface, the shorter jaw having a recess upon the working face thereof in alignment with that of the curved surface to accommodate one of the links of a chain, each of the jaws having portions extended and slotted to accommodate appropriate portions of the links, and a fin carried by the longer jaw for shifting one of the links laterally of the other.

2. A tool for shifting links with relation to each other, comprising long and short jaws pivotally connected together and having linkengaging surfaces adapted to register with each other, the short jaw having a pocket adapted to receive the edge of one link, and a fin carried upon the long jaw adapted to engage the end of the other link.

In testimony whereof I afliX my signature.

CHRISTIAN J. J ORGENSEN.

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