|Publication number||US1271264 A|
|Publication date||Jul 2, 1918|
|Filing date||Nov 17, 1917|
|Priority date||Nov 17, 1917|
|Publication number||US 1271264 A, US 1271264A, US-A-1271264, US1271264 A, US1271264A|
|Inventors||Thomas H Barnard|
|Original Assignee||Thomas H Barnard|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (2), Classifications (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
T. H. BARNARD.
' CABLE CLAMP.
APPLICATION FILED Nov. I7. I9II.
1 ,271,5264. Patented July e, m18.
AZ'TYI :moms n. Burman, or HAMILTON, ONTARIO, Gamme.
To all whom it may concern.' Be it known that I, THOMAS ofthe city of Hamilton, inthe county of l tion; and
' upper end of which is formed a cup Wentworth, Province of Ontario, Canada,
rovem'ents in v(fiable-ClampAs, ofgwhich the supporting overhead electric cables and particularly to `those adapted .for use lwith `suspension insulators oftheball. and socketA typeand my object is to ydevise a simple, .strong'and secure clamp which can rea ily be formed of sheet metal.
I attain-my objectfby means of the con-- structions hereinafter described and illustrated inthe accompanying drawings in which-V Figure 1 is a front elevation of my improved clamp; v 4
Fig. 2 a vertical section of the same;
Fig. 3 asimilar'view showing a modifica- `Fig. '4 a `front elevation of yet another modification.
In the drawings like numerals of reference indicate corresponding parts in the different gures.
Referring particularly to Figs. 1 and 2, it will be seen that the device is formed of sheet metal suitabl shaped and formedl by dies. 1 is the bo y of the clamp, at the shaped laterally extended socket 2, while at the lower end of the body are formed the two curved cable supporting ianges 3 and a depending lugl 4 betweensaid flanges.-
In the socket is formed a keyhole slot 5 with its enlarged portion 6 -adjacent the body. The button headed metal stem 7 indicated in dotted lines in Fig. 2 is thus easily introduced into the socket. To hold the head in place in the socket, I rovid a lock 8 having its upper end a apted to close of the enlarged end of the slot, which lock may be detachably secured tothe body in any suitable manner. For some purposes it is preferable to form the lock as part of the keeper 9, which holds the cable, which the device i's used `to support, in position in the curved flanges 3. This keeper is pro-` vided with a curved offset portion `10 adapted to embrace the cable and with a lug 11` Specioation of Letters Patent. A
` A ppumim' med November 17, 1917. serial-No. 202,650.
have invented certain `new and useful Iml possi le.
Patented July 2,
opposed to the lug 4. A bolt 12 with asuitable nut is used' to clamp thelugs together,
Inl-some cases it is desirable to have the lock removable withoutcompletely disconnecting the keeper; lthe lock ,may therefore be divided from the keeper on a line intersecting -the axis of the bolt'13 as indicated in dotted lines in Fig. 1. Preferabily, however, the keeper is extended iup su ciently far so thatthere is-no division through the bolt hole .and the lower end of the lock is offset and forked to ass over the upper end of the keeper to`em race the bolt stem and be engaged by thejhead of the bolt as shown in Fig. 3. f
In Figs. 1 and' 2 I' show a preferred construction of the upper end of the lock, which is turned. outwardly to enter the large portion of the slot and is provided with an upwardly extending tongue 14 entering the lower endvof the narrow Ipart ofthe slot. As a variation the upper. end 15 of the lockl 'may be turned outwardly as shown in Fig.
which would answerthe same purpose in the same way. In Fig. 4I show a strain clamp constructed on thesame principle as far as the method of engagement with an insulator stem is concerned.. The body, socket and .lock are all similarly constructed, -but the cable is 'secured to the body by means of a keeper 16 extending'longitudinally of the.
cable and secured to the body by bolts 17. It will be evident that the construction employed in connecting the device to the in-A sulator stem-is independent of an vparticular method of connecting-the ca le 4 to the clam many modifications. of which are What I claim Ias my invention is:
1. A cable clamp formed with a sheet metal body having a cup shaped laterally extended socket formed at its upper edge, said socket having a keyhole slot formed therein with its enlarged portion adjacent the body, in combination with a lock havland a second bolt 13 passes through the` vkeeper and body as shown.
f ble groove therein and ing its upper end adapted to closefoff the enlarged end of the slot,'and-means 'for detachably securing said lock in place.
2. A cable clamp formed with a sheet metal body having a cup shaped laterally extended socketformed at its upper edge` said socket having-*a keyhole slot formed therein with its enlarged portion adjacent the body, in combination with a look having its upper end bent outwardly to enter the enlarged portion of the slot and provided with an upwardly extending tongue entering the lower end of the narrow part of the slot; and means for detachably secur-` ing said lock in place.
. 3. A -cable clamp vformed with a sheet vmetal body having two curved cable supporting flanges at its lower edge and a depending lug betweensaid flanges and having a cup shaped laterally extended socket formed at its upper edge, said socket having a keyhole slot formed therein with its enlarged portion adjacent the body, in combination with a keeper having a curved caa lug opposed to the lug on the body; a lock having its upper end adapted to close olf the enlarged end of the slot; and bolts securing the lugs together and' also the keeper and lock and body.
enlarged portion adjacent the body, in comin -bination with a keeper having a curved cable groove therein and a lug opposed to the lug on the body; :a lock having its upper end adapted to close off the enlarged end of the slot and its lower end forked; a bolt adapted to'secure the lugs together; and a bolt passing through the body, the keeper and the fork of the lock securing said parts together.
Signed at Hamilton, Ontario, this 3rd day of November, 1917.
THOMAS H. BARNAR-D. Witnesses: L
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2808631 *||Jan 27, 1954||Oct 8, 1957||Appleton Electric Co||Support clamp for cables|
|US4234146 *||Sep 12, 1978||Nov 18, 1980||Febs International, Ltd.||Flat type cable suspension structure|