US1275461A - Collar-adjusting clamp. - Google Patents

Description

G. F. NEVVON.

COLLAR ADJUSTING CLAMP.

APPLICATION FILED Nov. 4. I9I2. t

1,275,461. PaIenIedAu-O;13,1918.

se onerosi.

GEORGEVF. NEWTON, OF KANSS CITY, KANSAS. A.'SSIGITOEhl BY 'MESNE ASSIGNMENTS, T UNIVERSAL-"EGEM CLAN? COMPANY, 0E CHECAGO, ILLINOIS, A CQRPZd/ATION 0F XLEINOIS.

corinnnausrme cnam?.

.To al' whom it' may conce/m.'

Be it known that l, Gannon F. Nnwron, a

i vcitizen of the United States, residingI at 'point until the collar can be fastened at such point. i

`With this general object in View and others as hereinafter appear, the invention consists incertain novel and peculiar features of construction and organization as hereinafter describedand claimed;y and in order that it may be fully understood reference is to be had to the accompanying drawin? in whichigure 1, is a vertical section showing the method of adjusting and securing collars on hangers for the purpose of holding `falseworlr in position.

Fig. 2, is a View showing7 a part of a concrete column and false-work and also shows in elevation, the use of the adjusting collar clam).

n the said drawing, 1 is a bolt having a central bore or passage 2, and a clamping screw 3.

4 is a nut screwed upon the threaded stem of the bolt and provided with an angular external surface whereby it may be readily turned with a wrench.v

The boit l and nut 4 constitute a tightening device adapted for longitudinal expension and contraction and for longitudinai adjustment on the rod and for longitudinaliy adjusting the collar on said rod, as hereinafter appears.

In Fig. 1, 6 indicates a falseovork upon which a concrete -door 7 is laid. 8 is a reinforce beam for the 'floor and 9 a concrete rib depending from the door and iuclosing that portion of the beam below thefioor. line.

10 is the bottom portion oi the false-work underlying rib 9 and 11 is one of a series of ribs extendingr transversely of the bottom 10. 12 is a hanger suspended from the beam 8, and extending downward through the bottorn 10 and cleat 11.

, 13 are collars secured on trie arms of the Specication of Letters Patent,

redenering. is, asie.

Application led November e, 1912. Serial No. 729,543.

hanger and forming supports for the overiying portion of the :false-work, the collars being secured rigidly to the rods by screws le.

Preferably the collars 13 are` iirst itted on the arms of the hanger and the set screws 14 are turned so as to bear with sufficient force' on the arms to support the weight of the overiying portion oi the false work before the concrete floor is laid. The clamping device is then slipped upon one ot' the arms of the hanger until the nut L1 engagesthe underside of the collar on such erin and then the clamping screw 3 is turned to secure the bolt 1 rigidly on the arni. of the overlying collar is then loosened and a wrench is employed to screw the nut i upwardly and thus;l slide the overlying collar upward until the false ,work has attained the desired position, it being noted that .by the means described suiiicient force can be brought to bear on the cleat 11 to flatten outA the bottoni 10 in the eyent that the same is slightly twisted by warpage or otherwise. After the bottom 10 is raised to the point desired, the set screw 14% is turned to secure the collar 13 reliably in place. Set screw 3 is then loosened to permit the clann lig device to be slipped on the other arm of Vdie hanger and-then the saine adjusting operation. of the collar on said arm is eected, after which the clamping devices are removed from the rod.,

1When the time to remove the falsework arrives, the collars 13 are removed and the false-work taken down -and "then the arms of the hanger are cut off at the bottom of the rib Si as usual.

ln Fig. 2,15 indicates a concrete column, 16 the false-work or forni, 17 vertical ribs strengthening the forms, 18 cross bars engading the outer sides of the ribs and 19 rods extending through the column. falso work. and bars 18 and also through the ribs 17, if desired.v

To hold the forms or 'ialsework in proper position, collars 13' are mounted on opposite ends of rod 19 and bear against the cross Set screw le Lemme@ clamp in the same mennen that eoiles 13 of Fig. l were adjusted.

From the above description it will be apparent that I have produced a collar adjusting clamp which will perform 'its function efficiently and which embodies the desirable features of simplicity, strength7 durability and cheapness of constructiom Claim:

l. ln a mold clamping device, a tie-rod, two clamping collars mounted en said rod, euch collar having means foi being secured tightly to said rod, one of the collars being longitudinally adjustable on said rod, and e tightening device adapted for longitudinal expansion and contraction and for longitudinal adjustment on and having means foi' being releaszibly locked to' saidrod, and adapted to engage and longitudinally move and to be, detached from said adjustable clamping collar. A

2. in :i clamping device, u tie rod, a clamping collar longitudinally adjustable on said rod yand having means for being ieleusahly locked thereto, und :i tightening device adapted for longitudinal expansion and contraction, und .longitudinally adjustable on seid rod independently of said clamping collar and adapted for longitudinally moving seid collar, and provided with means for being releasably locked to said rod.

v ln testimony whereof I afix my signature, in the presence of two witnesses. Y

F RANK Il. GLOBE, G. Y., THORPE,

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