US1887455A - Anchor for hangers - Google Patents

Description

Nov. 8, 1932. E. w. HELBERG ANCHOR FOR HANGERS Filed May 22, 1929 Zia 57 I I o Gamay.

Patented Nov. 8, 1932 warren STATES EDWIN WALTER antenna, or CHICAGO, ILLINOIS- ANCHOR FOR'HANGERS Q 7 Application filed May 1929.. Serial nojacawz; I

This invention relates to an anchor designed primarily for use in suspending pipes and similar hangers from concrete structures.

It is an object of the present invention to provide an anchoring device which can be placed in a concrete form before the concrete 'is poured and, after the form has been removed, will present an open threaded recess or socket into which a hanger can be directed. 19 Another object is to provide simple and efiicient means whereby the anchoring devices can be held properly positioned during the pouring operation.

A further object is to provide means for preventing the anchoring devices from becoming partly or entirely filled with concrete while being embedded therein or cover-ed thereby.

A still further object is to provide an anchoring device which issimple in construction, cheap to manufacture, and does notre quire any special skill in positioning the-same for use.

With the foregoing and other objects'in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction.hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawing the preferred forms of the invention have been shown.

In said drawing, Figure 1 is a section through aportion of a form having concrete therein, two different 49 kinds of anchoring devices being shown positioned therein, the hangers to be used with the anchoring devices being indicated by broken lines.

Figure 2 is a section through another form A? of anchormg device.

Figure 3 is a section through an additional form of the invention.

Referring to the figures by characters of reference, 1 designates a tubular member one end of which is fitted in a ring-like disk 2.

Extending diametrically through the tubu- U upper portion of the anchoring member 10.

The other end of the tubular member is. split longitudinally so as to provi-deopposed arms 5 that diverge along curved lines. plug 6 of wood or other suitablematerial is insertable into the tubular .member at the forked end thereof for the purpose of sealing said end of the member. The other end I of the tubular member is engaged by the end of a hanger, .8. v This hanger canv be in the form of a pipe, rod, or the like for support 9 ing any suitable structure such as a sprinkler pipe, steam pipe, etc., indicated at P.. i

p In practice, after a concrete form. F has o1 gr been set up, the anchoring devicel is placed at the point where a hanger is to belocated. It is held in position by driving nails .9 or other suitable fastening device s" ixinto the bottom of the form F. Thus theanchoring device will be held fixedly in anupstanding position. Plug 6 of course: closes the upper end of the anchoring device. j Thereafter'the concrete C is pouredinto the "form and will cover the. anchoring device which thereby becomes firmly connected to the concreteafter 7 I Subsquently to 'the'foregoing operation the formis taken down in the usualway,the bot 1 tomthereofbeing-pulled-away from the nails 9 Thusithe lower end of the'anchoringdevice with the ring 2 thereon will" be exposed at the-lower surface of the molded concrete and the hanger 8 can thus'be screwed into the anchoring device.

Instead of making the anchoring device as described, it can be constructed as illustrated at the right of Figure 1 and in Figure 2. In this structure the anchoring device comprises a tube 10 having one or more prongs 11 extending from one end thereof.

lar member adjacent its other end is an an choring pin 12 the diameter of which is substantially equal-to the internal diameter of the tubular anchoring member 10 so that this pin 12 thus serves not only to hold the tubularmember 10 against withdrawal from the concrete but it also acts as a closure for the In practice the prongs 11 are driven into 15390 the bottom of the, form F at the point where the hanger is to be suspended and these prongs will thus hold the anchoring device properly positioned. Thereafter the con crete is poured into the form and'will cover it. After the concrete has set the form can be taken down as before explained and the projecting prongs 11 can be broken off or bent back against the concrete. A hanger can then be screwed into the anchoring device. e 1

Obviously other forms of the device difierjing from those shown in Figures 1, and 2 can he used. For example, andas shown in Figure 3, the tubular member 13 can be closed adj acent tothe arms 14 pinching together the'opposed portions of the member, as at .15. Thus it becomes unnecessary to use a plug. What is claimed is:

v 1. A device of the class described including a single length of pipe for engaging and supporting a hanger inserted into one end, and anchoring means separate from the pipe for closing the other end thereof against the admission of poured concrete.

2. A device of the class described including a single length of pipe having a hanger receiving end, means for attaching said end to the inner surface of a form, and an anchoring pin extending through the other end of the pipe, and closing said end against the admission of poured plastic material.-

3. A device of the class described including a single length of pipe of uniform diameter having one end interiorly screw-threaded for engagement with a hanger, means on said end'for attachment to agform, and means seated in the other end portion of the pipe 40 for closing said end against the admission of poured plastic material, said means projecting beyond the pipe to constitutejan anchor. In testimony that I claim the foregoing as my own, I have hereto affixed my signature.

EDWIN WALTER HELBERG.

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