US757809A - Binding-post. - Google Patents

Description

No. 757,809. PATENTED APR. 19, 1904.

s. 0. HOUGHTON.

BINDING POST.

APPLICATION FILED DEC. so. 1903.

N0 MODEL.

llz'iize ssea fizz/67123071 UNITED STATES Patented April 19, 1904.

STEPHEN C. HOUGHTON, OF SAN FRANCISCO, CALIFORNIA.

BINDING-POST.

SPECIFICATION forming part of Letters Patent No. 757,809, dated April 19, 1904, Application filed December 30, 1903. Serial No. 187.167. (No model.)

' In binding-posts as ordinarily made the wire is thrust into or through the post across a hole which receives the wire-holding screw, 3 and the tendency is for the screw to cut off i the wire when turned in hard, and unless the; screw is turned in hard it is liable to loosen.

The object of my invention is to improve the construction of binding-posts to the end that the wire-holding screw or its equivalent may be turned or driven 1n hard enough to positively insure it remaining tight, yet at the same time the wire will not be cut OE and a good and eflicient electric connection or con.

tact will be produced. 1

My invention also has for its object to im prove the construction of binding-posts to the end that the bottom wire may be connected to the post and lead therefrom without countersinking the back board or other support to which the binding-post is attached.

The invention consists, essentially, in a post having a hole and an inclined wire-engaging face at one side of said hole, a wire-holding wedge adapted to enter said hole and hold the wire in firm engagement with said inclined face, and a wire-receiving opening in the post leading to said inclined wire-engaging face,

Figure 1 shows in side elevation a bindingpost embodying this invention. Fig. 2 is a vertical section of the binding-post shown in Fig. 1. Fig. 3 is a transverse section of the binding-post shown in Fig. 1, taken on the dotted line 3 3. Fig. 4: is a right-hand side elevation of the binding-post shown in Fig. 1. Figs. 5, 6, and 7 illustrate modified forms of binding-posts embodying this invention.

The post a, preferably cylindrical, is provided with means for securing it to a back board or other suitable support, and, as shown in Figs. 1 and 2, a plate a is secured to the post, having holes through which screws pass to secure the plate to the support, or, as shown in Fig. 5, the lower end of the post, which projects into a hole in the support, is externally screw-threaded to serve as a means for securing it to the support.

I; represents a wire-holding wedge, which is representedas a screw having a conical or wedge-shaped end. The upper end of the post a is formed or provided with a hole adapted to receive said wire-holding wedge or screw, said hole being screw-threaded to receive said screw and the bottom of said hole being formed with a conical recess d to receive the conical end (Z of the wire-holding wedge or screw.

At the side of the hole in the post a wireengaging face is provided, which is herein represented as one side of the conical recess at the bottom of the holeas, for instance, at or about the point 2so that a wire laid upon said engaging face will be in position, to be engaged by the conical end of the screw, and thereby wedged against the engaging face with a severe pressure. The post is provided with a transverse opening or slot forthe wire which leads to said'engaging face 2, whereby the wire may be easily introduced and brought into position on said engaging face. In Figs. 1, 2, 3, 4:, and 5 a slot 0 is provided in the post, which extends transversely inward to a point at least as far as the center; yet said slot may continue farther, if desired, and said slot serves as the wire-receiving opening, and in Fig. 7 two holes of difierent diameters are provided for different-sized wires, which also lead to said wire-engaging face at the side of the hole which receives the wire-holding wedge, or said holes may be made of the same diameter for two leading-in wires, if desired.

In Fig. 6 the wire-holding wedge is represented as a conical or tapering plug adapted to be driven into the hole in thepost in lieu of the screw shown in the other figures, and in Fig. 7 the screw is provided with a knurled head or flange.

The wire which enters the slot is brought into a position against or upon the wire-engaging face, and then the wire-holding wedge is turned or driven in and the wire engaged and pressed firmly into engagement with the engaging face and held. As the wire is thus wedged between the wire-holding wedge and engaging face considerable pressure is brought upon the end of said wire holding wedge, which is exerted laterally thereon, and as a result said wire-holding Wedge is caused to bind in the hole in the post and is thereby pre- Vented from loosening. The Wire may be impinged with a severe pressure and yet will not be cut off.

The lower end of the post is slotted longitudinally instead of transversely for the introduction of the wire, said slot being represented at d, Fig. 4, and the wire-holding wedge 03 is screwed or driven into the hole in the bottom of said post, which impinges the wire upon the engaging face provided at the side of said hole, whereby the inclined portion of the wedge will engage said wire and hold it in engagement with the wire-engaging face. The longitudinal slot is preferably located at one side of the center. The longitudinal slot provides for the passage of the wire along the side of the post, so that the wire may enter the hole in the support which receives the lower end of the post, and the necessity of countersinking said support is thereby obviated.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A post having a hole and an inclined wireengaging face at the side of said hole, a wirereeeiving opening in the post intersecting a portion of said wire-engaging face, and a wireholding wedge which enters said hole, the wire being held in firmengagement with said inclined face by the inclined portion of said wedge, substantially as described.

2. A post having a hole and an inclined wireengaging face at the side of said hole, a transverse wire-receiving slot in said post leading to said inclined wire-engaging face, and a wireholding wedge which enters said hole, the wire being held-in firm engagement with said inclined face by the inclined portion of said wedge, substantially as described.

3. Apost having a hole and a Wire-engaging face at the side of said hole, a longitudinal wirereceiving slot in the post, intersecting a portion of said wire-engaging face, and a wire-. holding wedge which enters said hole, the

face by the inclined portion of said wedge,-

substantially as described.

4:. A post having a hole with aconical recess at the bottom, and awire-engaging face at the side of said conical recess, a wire-receiving slot in the post intersecting a portion of said wireengaging face, and a screw having a conical end which enters said hole, the wire being held in firm engagement with said face by the conical end of said screw, substantially as described.

5. 'A post havinga hole with a conical recess at the bottom and a wire-engaging face at the side of said conical recess, a transverse wirereceiving slot in the post leading to said wireengaging face, and a screw having a conical end which enters said hole, the wire being held in firm engagement with said face by the conical end of said screw, substantially as described.

6. Apost having a hole and a wire-engaging face at the side of said hole, a longitudinal wirereceiving slot in the post leading to said wireengaging face, and a screw having a conical end which enters said hole, the wire being held in firm engagement with said face by the conical end of the screw, substantially as described.

7 A post having a screw-threaded shank, said shank having a hole and awire-engaging face at the side of said hole, a longitudinal wire-receiving slot in the post leading to said wire-engaging face and a wedge having a clamping end which enters said hole, thereby forming a wire-receiving space between said Wedge and the outer wall of said shank.

8. In a binding-post a threaded cylindrical shank, longitudinally slotted and tapped to receive a conically-pointed binding-screw, a conical wire-engaging face cooperating with said screw, said longitudinal slot forming an entrance-passage for a terminal wire.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

STEPHEN C. HOUGHTON.

Witnesses:

B. J. NOYES, H. B. DAVIS.

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