US1552334A - Concrete-form clamp - Google Patents

Description

E.H.MOSHER CONCRETE FORM CLAMP Sept. 1, 1925. 1,552,334

Filed Oct. 13, 1923 ATTO R N EY WITNESS:

Patented Sept. 1, 1925. v

UNITED STATES PATENT OFFICE.

EDGAR H. KOSHER, OF WASHINGTON, DISTRICT OF COLUMBIA.

CONCRETE-FORM cam.

Application filed we... 1a, 1022. Serial llo. 888,441.

To all whom it may concern:

Be it known that I, EDGAR H. Mosrmn, .a citizen of the United States, residing at Washington, in the District of Columbia, have invented new and useful Im rovements in Concrete-Form Clamps, of which the following is a specification.

This invention relates to improvements in clamps or looks, mainl designed for looking to ether sections concrete forms, the genera object of the invention being to provide a simple and effective device for easily portions of the at 1 and the and quickl connecting together the sections, the parts being so forms that they can be used over and over a in.

Another object of t e invention is to provide means whereby the sections are automatically placed in proper alignment by the lockin means.

A girther object of the invention is to provide means for locking the corner sections of the form to ether.

This invention a so conslsts in certain other features of construction and in the combination and arrangement of the several arts, to be hereinafter fully described, ilustrated in the accompanying drawings and specifically pointed out 1n the appended c aims. y

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a fragmentary perspective view showing one of my improved evices 1n use.

Figures 2 and 3 are views showing how tlliie e vice acts to place the form sections in I ent. gure 4 is a fragmentary sectional view showing a slightly modified form of device usedto connect two' corner sections together. Fi e 5 is a perspective view of one of the gd t ices shown in Figure 4.

As is well known the forms for building concrete structures are made up of a number of sections, each section consisting of a frame of angle iron and a plate of sheet iron and it is the object of my invention to connect these sections together. In Figure 1 angle iron frames are shown lates at 2. In carrying out my invention form slots 3 in the abutting flanges of the frames and provide a lurality of angle locking members 4 w ich shown in Figures 1 and 3, so that the edges of the neck 6 will engage the walls of the slot, thus forcing the slots into alignment and consequently moving the sections into all cut. The neck is made of such a wi th as to snugly fit 'in'the slots so as to brlng the parts into alignment, as shown in figure 3. When in locking osition the secon l1mb of the member wi I extend in the same direction as the abutting flanges of the frames so that it will be out of theway, as shown in Figure 1.

I cut away the end portion ofthis second part of each member so as'to leave the corner recesses 7, thus providing a space to receive a tool in order to turn the member to unlocking position, if the member should be close to the flange of the angle iron frame.

. Figure 5 shows a modified form of looking member in which the head part 5' and neck 6' extend from one side instead of the end of the limb, the limbs being cut away, as at 8, for this purpose. The second limb is curved, as at 9, and provided with a slot 10 for receiving a bolt 11 so that a pair of members can be used for fastening together the corner sections of the form, as shown in Figure 4. In this figure two corner sections are shown at A and an angle post B is placed at the ends of these sections.

From the above it will be seen that my locking devices can be easily and quickly placed in position to connect together the sections of the form and the form can be interfere with workmen in bu1 ding a structure with'my forms.

It is thought from the foregoing description that the advantagzs and nove features of my invention will readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall withm the scope of the appended claims.

What I claim is 1. A device of the class described comprising a locking member of substantially angle shape, one 'mb of the member having a head and a neck connecting the head with the rest of the limb.

2. A device of the class described comprising a locking member of substantially angle shape, one imb of the member having a head and a neck connecting the head with the rest of thelimb and the second limb having a slot therein.

3. In a sectional form, the sections having slotted abutting portions, a locking member for engaging the slots and having a head and a neck connecting the head with the member, said head and neck being capable of bein passed through the slots and the neck bem of slightly less width than the width of t e slots so that when the device is turned after bein inserted between the slots to lace the neo crosswise of the slots the sections will be aligned by the neck engaging the walls of the slots.

4. In a sectional form, the sections having slotted portions, a pair of members havin key-shaped parts for engaging the slots an bent portions at the ends opposite the T- shaped portions, said bent portions having eyes therein and a bolt passing through the eyes for connecting the two members togxlether for locking the corner sections in ace.

p 5. In a sectional form including flanged members having openings therein, a locking member for engaging the openings and having a neck part for engaging the walls of the opening when the device is in locking 0- sition to he in the sections, said mem r being of smaller width than the flan es so that the outer edges of the flanges w project beyond the same when the member is in locked position. v

' In testimony whereof I aflix my signature.

EDGAR H. MOSHER.

Images