US1572907A - Twisting device - Google Patents

Description

Feb. 9

w; B. TAYLOR TwIsTING DEVICE Filed Ma 13 y f 3l f5 24 IIIIIHUIIIIHLA A TTORNEY.s

Patente-d Feb. 143, 19256.

UNITED STATES PATENT eri-ice WILLIAM BOND TAYLOR, GF CARBQNEAR, NEIVFOUNDLAND, ASSIGNOR OF ONE- FO'URTH TO FRANK P. ?IKE AND QNEFQIRTH.. TO ALBERT E. PENNEY.

TIVISTING DEVICE.

Application sied nay is, 1925. serial no. casse.

To all 'who/n t may concern.'

Be it known that I, IVILLIAM BOND TAY- Lon, a subject ont the King of Great Britain,

and a resident of Carbonear, Newfoundland,

construction so that no parts are likely to be clogged, and must be adapted te reach into and operate in places di'liieult of access.

According to the present invention all these advantages are obtained in a device cheap to construct and easy to use.

In the accompanying drawings:

Figure 1 is an end view ot one form ot the device, certain parts being broken away to better show the structure.

Figure 2 is a side view with other parts broken away, and

Figure 3 is a sectional view at the line 3-3 ot Figure 2.

In using the device to twist two wires together the handles 1, 2 are operated scissorfashion, one after the other, to cause their respective pawls 3, 4 to alternately engage the respective ratchet wheelsV 5, 6 and rotate the hub 7 to bring the wire receiving openings or slots 8, 9 clear ot the extension collars 10, 11.

lVith theopenings S, 9 in this position they can respectively engage the two wires 12, 13, and the hub 7 can be seated Vupon the wires. Either ot the handles 1 or 2 may then be operated to cause its pawl 3 or 4 to drive its ratchet wheel or 6 to turn the hub i', thus starting the twisting of the wires because they are held in their respective slots 8 and 9. rIhe twisting of the wires to any desired extent is completed by alternately operating the handles 1 and 2 or reciprocating either of them to turn the hub 7 and with it the wires.

It will be observed that the device shown is of extremely simple construction. rPhe two ratchety wheels 5 and 6 are preferably integral with the ends ot the hub 7, and form a groove between them. Each handle 1 and 2 has an .ear '14 projecting into the groove 15, so as to bear against the tace of the hub, with one side of the ear lying against the liat inner tace of the corresponding ratchet wheel, and the other side of the ear lying adjacent the side et the ear 14 ot the other handle. Each handle 1 and 2 is also provided with a second rear 19 lying against the outer tace of the corresponding.;` ratchet wheel 5 or 6. Each ear 19 not only lies against the outer tace ot the corresponding ratchet wheel 5 or 6, but also carries the extension collar or 11 lying in an annular groove 21 in the outer tace of the corresponding ratchet wheel. In the present disclosure, the collars 10 or 11 are shown as secured to their respective ears 19'by screws 22 passing through the ears and threaded into their collars.

Each collar 10 or 11 covers the major part of the circumference of its groove 21, thus forming a wide ournal for its handle on the hub, but leaving openings in said collars sufficiently long to leave both wire receiving slots 8 and 9 open when the hub is in proper position, so that both the slots may be slipped at the same time over the wires to be twisted or ol" the twisted wires. In the construction shown, the ends 24 and 25 of the collars 10 and 11 are beveled off so that the bevels lie nearly along the line of the adjacent edges of the slots, when the slots are open, with the result that a minimum ot movement of either handle closes one or both slots and locks in place the wires to be twisted.

The pawls 3 and 4 are simply but strongly formed and mounted, in the construction illustrated. Each includes a heavy round stem 27 sliding` in a round hole, drilled longitudinally into its supporting` handle 1 or 2 between the ears 1.4 and 19; and said pawl is pressed outwardly by a coiled spring 29 so that the pawl tooth is constantly pressed against its ratchet wheel 5 or 6. The pawl teeth preferably extend across the entire width and depth of the ratchet wheel teeth. and are formed integral with the bodies of the pawls which tit closely, though sliding freely, between the ears 14 and 19 of each handle 1 and 2. In its operating position, the face of each pawl lits snugly against most ot the tace ot the adjacent teeth of the ratchet wheel, thus supporting the pawl tirmly even when it bridges the slots 8 and 9. It has been 'found vsatistactory to have the slots8 and 9 spaced about three-quarters of an inch on centers at their bottom and about one-half inch at the periphery of the ratchet wheels. Twenty-four teeth in each ratchet wheel has been found satisfactory in an iron device for tightening wires in concrete molds.

Having thus described one embodiment of the invention what is claimed is;

l. In a twisting d evice. a hub having a pair of slots to receive wires to be twisted together, said hub also being provided on each end with a groove, a pair of handles, a collar having an opening therein and secured to each handle and running in one of the grooves in the hub to form a journal for its handle, a ratchet wheel for each handle on said hub, and a pawl carried by each handle and cooperating with one of said ratchet wheels.

2. In a twisting device, a hub having a pair of slots to receive wires to be twisted together and having an annular groove in each end, a pair oi' handles, a collar for each handle having an opening and running in onel of the grooves in the hub to -form a journal for its handle, a ratchet wheel for each handle on the hub operated by its handle, apawl for each handle for driving its ratchet wheel, and an ear for each handle riding beside its ratchet wheel.

3. ln a twisting device, a hub including a pair of slots to receive wires to be twisted together, a pair or' spaced ratchet wheels on said hub and having a groove between them, said hub also having a pair of journal grooves, a pair of handles turning on the hub, a pawl carried by each handle and cooperating with one of the ratchet wheels, an annular collar for each handle having an opening and running in one of the journal grooves, and an ear carried by each handle engaging` in the iirst groove i Il. In a twisting device, a hubincluding a pair of slots to receive wires to be twisted together, apair or" spaced ratchet wheels on the periphery of the hub and having a groove between them, said huh also having journal grooves in its ends, a pair of handles turning on the hub and having pawls to engage the ratchets, a collar for each handle having an opening and riding in one of the journal grooves, and an ear for each handle riding in the first groove.

In testimony whereof., .I have affixed my signature to this speciiication.

VVILLIAl/I BOND TAYLOR.

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