US638148A

US638148A - Electric belt.

Info

Publication number: US638148A
Application number: US70598199A
Authority: US
Inventors: Albert T Sanden
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-02-18
Filing date: 1899-02-18
Publication date: 1899-11-28
Anticipated expiration: 1916-11-28

Description

No. s3s,|4a. Patented Nov. 28, I899. A. T. smmzn.

ELECTRIC BELT.

(Application filed Feb. 18, 1899.)

(No llodol.)

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UNITED STATES PATENT OFFICE.

ALBERT T. SANDEN,

OF NEW YORK, N. Y.

ELECTRIC BELT.

SPECIFICATION forming part of Letters Patent No. 638,148, dated November 28, 1899.

Application filed February 18, 1899. Serial No. 705,981- (No model.)

To aZZ whom it may concern:

Be it known that I, ALBERT T. SANDEN, a citizen of the United States of America, and a resident of NewYork city, county and State of New York, have invented certain new and useful Improvements in Electric Belts, of which the following is a specification.

The essential feature of improvement in electric belts herein claimed is a construction of the bearing-pads for simple and convenient detachable application of a sponge-insulating bearing-surface to be charged with water intermediate of the metallic disk and the body of the wearer, whereby the electric current is diffused and made to act over a larger surface of the body than when the metallic pad has direct contact, in which case the current concentrates at the point where there is the greatest pressure of the pad and sometimes burns, blisters, and produces other ill effects of too much heat.

Another feature of the improvement comprises a novel and more efficient construction of the hooks for connecting and disconnecting the chain of cells to the belt, all as hereinafter described, reference being made to the accompanying drawings, in which- Figure 1 is a perspective view of an electric belt comprising my improvements. Fig. 2 is a section of one of my improved pads on line 2 2 of Fig. 1. Fig. 3 is a plan View of one of the cells and my improved attachinghook, and Fig. 4; is a top view of the apparatus of Fig. 3.

In the drawings, 0. represents the pad for the contact with the body of the wearer at the front, and b, the pads for the back.

0 represents the battery-cells, d the inside portion, and e the outside portion, of the tubular belt employed to carry the cells and the pads, the cells being coupled in series by the conducting-Wires f and 9, said series being at one end coupled to the part at of the belt at h and at the other end coupled to the elastic strap '5 at j.

In my improved construction of the pad I provide a concavo-convex disk of metal, preferably aluminium, and a smaller disk m,

. the former disk having a central stud-bolt and nut n on the concave side and the latter disk having a central hole to be clamped on by said bolt and nut.

For the application of the sponge I cut it in the form of a disk of considerably-larger diameter than the disk 70 and fold the margin over the edge and onto the back of the disk, as at Z, and clamp the folded margin by the disk m and the stud-bolt and nut n, and I attach a metallic loop 0 to the disk n for stringing the pad on the strap 11 or p. The conducting-wire a may connect with the disk through the stud-bolt 'n or by any other approved means.

The chain of cells has to be detached frequently from the belt to be immersed in vinegar for generating the currents, for which it is desirable to employ some means of fastening that will not disconnect by the effects of the motions of the body of the wearer in use and that will not be injuriously affected by the corrosive action of the vinegar. In the common construction the ordinary snaphook is used; but it is unsatisfactory because the acid of the vinegar soon destroys the life of the spring and it fails to keep the connection. I have therefore provided the rigid unyielding hook s, with the broad or diskshaped point t bored for the screw it, with a tapped hole for the screw in the shank y of the hook, so that the yoke w or other attachment of the terminal cell may be secured in the hook by the screw, as clearly shown in hook in use. The hook connecting the end of the chain of cells from which the current flows to the pads b is formed with a shank 3 which is riveted to the part (1 of the belt near the end to which the elastic strap '5 is connected and has a resistance device 2 attached, through which the current passes to the wire a, connecting the pads Z), and in which the resistance may be varied by turning the screw I) up or down to vary the current, as may be desired.

While I have shown and described sponge for the disk-cover of the pad, it is obvious that felt of loose texture or other similar fabric will serve as well, and I include such fabrics as well in my claims.

What I claim as my invention is- 1. The combination in a pad for electric belts, of the concavo-convex disk 70, having the stud-bolt and nut 'n in the center of the concave side, the clamping-disk m, and the Figs. 3 and 4, in a manner not liable to un- 10 perforated disk-shaped point, and the screwthreaded perforation of the shank coincident with said perforation, of the point and a screw adapted to said perforations for securing the yoke in the hook.

' Signed by me at New York, N. Y., this 8th 15 day of February, 1899. V

ALBERT T. SANDEN. lVitnesses:

Anson P. THAYER, O. SEDGWICK.