US1145462A

US1145462A - Socket for concrete construction.

Info

Publication number: US1145462A
Application number: US73056612A
Authority: US
Inventors: Francis M Barton
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-11-11
Filing date: 1912-11-11
Publication date: 1915-07-06
Anticipated expiration: 1932-07-06

Description

F.- M. BARTON.-

SOCKET FOR CONCRETE CONSTRUCTION.

APPLICATION FILED gown, 1-912.

l lflgfig v Patented 3111376, 1915.

M d/z: wzzo 5 i W WM FRANCIS M. BARTON, OF CHICAGO, ILLINOlr.

SOCKET FOR CONCRETE CONSTRUCTION.

Specification of Letters Patent.

Patented July 6, 1915.

Application filed November 11, 1912. Serial No. 730,566.

To aZZ 1071 run it may concern:

Be it known that I, FRANCIS M. BARTON, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Sockets for Concrete Construction, of which the following is a specification.

My invention relates generally to metallic sockets to be inserted in concrete, for lag or machine screws.

It has heretofore been the practice to make sockets of'cast iron which required drilling and threading, and being of cast material, such sockets had little strength and were very expensive, and it is the purpose of this invention to produce a socket that will not easily break, and will require no drilling or threading, and will save the cost of drilling and threading.

My invention is clearly illustrated in'the accompanying drawings, fully described in the following paragraphs of these specifications, and particularly referred to in the appended claims.

In the drawings referred to, Figure 1 is a section through socket construction in accordance with my invention. Fig. 2 is a plan of the socket. Fig. 3 is a means for holding the socket in place during the time the concrete is soft. Fig. 4 is an elevation of the lag screw, and an elevation and a section of the socket.

Similar letters refer to similar parts throughout the several views: A being for the socket; B for the staple; C for the temporary forms; D for the temporary wood fastening means; E for the nail which holds fastening means to wood forms; F for the lag screw.

In the practical application of my invention, I vary the construction somewhat, as the exigencies of the case may require. For example, the socket is formed of round wire, A, as shown in Fig. l and Fig. 4, into a cylinder having a continuous rib or thread, A, winding spirally at a constant inclination, the end of said cylinder being closed by drawing the end of cylinder to a point as indicated by A In forming said socket, I draw wire over a male screw, F, of proper size, said wire being the same in diameter as the pitch of the threads on the male screw.-

The socket is formed so that the oppositefaces of the coils contact with each other and thus provide a closed socket which excludes the filling G from entering the opening adapted to receive the lag screw F.

The arm, A is to fasten the socket to wood forms by means, B, so that it will not be raised off spindle, D, while concrete or plastic material is soft. The arm, A also assists in holding the socket firm in the concrete, G, while the lag screw or machine screw is being installed in the socket. The nail. or means, E, is to fasten the spindle, D, to form C; The use of nail or means, E, and spindle, D, and staple or means, B, is to secure the socket composed of A, A and A in position while the concrete or plastic substance, G, is still soft or plastic. The spindle D is also a means of stopping the concrete or plastic material, G, from entering the inside of the socket between form C and socket A, when concrete or plastic material G is soft.

The socket A is held firmly in concrete or plastic material G by the adhesion of the concrete to the wire and also by the natural mechanical bond or corrugation formed by the wire being formed into circular inclined spiral rings.

The thread of the lag screw or machine screw F, must fit the groove between the winding of the socket A; the socket A being a cylinder having a continuous rib or thread winding spirally at a constant inclination, and constituting a female thread into which the male thread of the lag screw or machine screw F is threaded or screwed.

Having this described the invention, what I claim as new and desire to secure by Letters Patent, is:

1. In concrete construction, the combination of metallic socket composed of spirally wound wire, the windingsbeing in contact with one another to exclude a plastic filling from the inside of the socket and a screw having threads of a depth and pitch corresponding to and fitting in the groove formed between said windings, so that the screw will not spread apart the windings of the socket.

2. In concrete construction, the combination of metallic socket composed of spirally wound wire, a filling in which the outer portions of the windings are embedded so that they will be rigidly secured therein, the adjacent windings contacting with one another to exclude the filling from the inside of the socket, and a screw having threads of a depth and pitch corresponding with and fitting in the groove between the successive spirals and formed so that they will not spread the spirals apart. 1 3. In concrete construction, the combination of a filling, a metallic socket composed of spirally-wound wire, the windings being in contact with one anotheroto exclude the filling from the inside of the socket, a screw end nzeenset, the outer efid ofthe socket,

whereby the socketwill he held in place be fore the filling is laid around the socket, the

Wire at the inner end of the socket being Wound to form a closed tapered end .to exclude the filling from the inner end of the sockti I FRANCIS M. BARTON.

Witnesses: lBnno (lemon,

7 STUMEF.