US1696578A - Tool for assembling chain links - Google Patents

Description

Dec. 25, 192a 1,696,578

7 L. w. LIPPEBT TOOL FOR ASSEIIBLING CHAIN LINKS Filed m. 1928 2 Shuts-Shoot 1 .INVENTOR. [ea ZdZzp rZ; BY 15.8 m

ATTORNEY Dec 25, 1928. 1,696,578

. L. w. LIPPERT 'roon FOR ASSEIBLING 0mm LINKS Filed Jan. 5. 1925 '2 Shuts-Sheet 2 INVENTOR. Z60 Z/XZzppm-Z; BY

A TTORNEY Patented Dec. 25, 1928,

- warren stares ATENT OFFICE."

TOOL roanssniunnme CHAIN LINKS.

Application illed January 5, 1928. Serial No. 244,685.

This invention relates to tools and has special reference to a tool for assembling the links of chain belts.

It is a well known fact in all machine shops, that on practically all farm implements and on numerous other machines, chain belts have to be applied by connecting two or the links and also that at times'it becomes necessary to remove a broken link and replace it with another. Practically all of such links are joined by sliding one link laterally with relation to the other so that a hook end on one link slips into position on a cylindrical or pin end on the other link This operation, when attempted by hand, i comparatively difiicult and requires considerable strength and skill in order to get the parts together.

The principal object of the present inven tion is to provide a novel and simple hand tool adapted to grip one end or link of a chain, the tool having means for engaging the side of a second link and forcing it laterally with respect to the first link so that if disconnected it is moved into connected position and it connected it may be moved out of engagement with said firstlink.

WVith the above and other objects in view as will be presently apparent the invention will now be described in a particular embodiment and will then be specifically claimed, reference being had to the accompanying drawings wherein:

Figure 1 is an elevation showing the front side of the tool.

Figure 2 is a section on the line 2-2 of Figure 1.

Figure 3 is an elevation showing the rear side of the tool.

Figure l is a view looking down on the tool and showing a link being separated from the remainder oi the chain.

Figure 5 isa perspective view of a certain arm and (third jaw used herewith.

Figure 6 is a perspective view of the upper or working end of a pawl lever and showing the pawl.

In the present embodiment of: the invention there is provided a pair of tongs having the usual pivot 10 and each member of the pair is provided with a handle 11 and a jaw 12. notched on the inner or concave side to provide graduated teeth 13. Moreover, these jaws are angularly disposed, as can be seen in Figure 2, to the handles 11, the jaws in- The jaws 12 are concave in form and elining rearwardly so that a chain link held therein may pro ect upwardly and forwardiy. On one member of the tongs there is an extensionldwhich lies in'a plane at right anges the axis of the pivot 10. On this extension are mounted guide ribs 15 which engage in the grooves 16 formed onv the upper and lOWQlXiitlCQ-S of an arm 17. These guide ribs are so arranged that the arm 1'? slides tranverr-lely of thejaws 12 and on thisarm is a third. jaw .18 which thus has movement across the opening between the jaws 12 so that if a chain link be held in these jaws the third jaw 18 can move across the end thereof.

In order to eiiect movement of the bar or arm 17 an operating lever 19 is secured on the extension 1 1- remote from the tongs, a pivot 20 connecting the lever and extension so that the lever may be oscillated manually. On the upper and short end of this lever there is pivoted a pawl 21 which is forced upwardly by a coiled spring 22 so that the end of the pawl engages the ratchetteeth 23 formed on the underside of the arm 17.

In operation one link L of the chain which it is desired to connect or disconnect is gripped between the jaws 12, the graduated teeth permitting proper gripping of different sizes of chain. This link is so positioned that the jaw 18 may move across the end of the link. Assuming that it is wished to disconnect the adjacent link L the handle 19 is operated, the linkL being set at the proper angle to the linkL, whereupon the T jaw 18 will, engage the side of said link L and force i out of engagement with the link L as shown in Figure l. If it is desired to connect two links or" the chain the operation is quite similar except that the link L is started in from the left of Figure 4:, the jaw 18 being moved well outto the left, and the link forced into position by operating the handle 19.

There has thus been provided. a simple and efiicient device of the kind described and for the purpose specified.

It is obvious that minor changes may be made in the fornrand construction oi the invention without departing from the material spirit 'tl'ierooi. It is not, therefore, desired to confine the invention to the exact form herein shown and described, but'it is desired to include all such as properly come within the scope claimed.

Having thus described the invention what is claimed as new, is:

1. In combination, a pair of tongs having pivotally connected jaws, one of said jaws having a guide extension projecting from the jaw in a plane at right angles to the pivotal axis, an arm carried by said guide extension to move therealong, and a third jaw carried by said arm to move across the end of an object gripped by said tongs,

2. In combination, a pair of tongs having jaws connected by a pivot, an arm mounted on said tongs for movement transverse the axis of the pivot, a third jaw carried by the arm to move therewith, and means to im part a step by step movement to said arm.

3. In combination, a pair of tongs having pivotally connected jaws, one of said jaws having a guide extension projecting from the jaw in a plane at right angles to the pivotal axis, an arm carried by said guide extension to move therealong, a third jaw carried by said arm to move across the end of an object gripped by said tongs, a series of ratchet teeth formed on said arm, a lever pivoted on said extension, and a pawl carried by said lever and engaging said teeth.

in testimony whereof I zulix my signature.

LEO XV. LIPPER'I,

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