Improvements in electrical exercising machines / [Albert Williamson Courtney].

  • Courtney, Albert Williamson.
Date:
1901
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in electrical exercising machines / [Albert Williamson Courtney]. Source: Wellcome Collection.

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    N° 9630 A.D. 3901 Date of Application, 8th May, 1901 —Accepted, 8th June, 1901 COMPLETE SPECIFICATION. Communicated from abroad by Albert Williamson Courtney, of 147 Niagara Street, Buffalo, New York, United States of America, Manufacturer of Medical and Electrical Specialties. “ Improvements in Electrical Exercising* Machines ” I, Henry Harris Lake, of tlie Firm of Haseltine, Lake & Co., Patent Agents, 45 Southampton Buildings, in the County of Middlesex, do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement: — 5 This invention relates to that class of electric exercising machines which com¬ prise a magnetic-electric generator having its armature-shaft provided with driving-pulleys, combined actuating-cords and electrical conductors passing around said pulleys and terminating in metallic handles, whereby the cords are drawn over the pulleys for rotating the armature and which form the body- 10 contacts or electrodes of the generator-circuit, and a spring or other suitable resisting medium connected with the pull-cords for opposing the pulling force of the operator and effecting the return stroke of the cords. One of the objects of my invention is to provide an exercising-machine of this character in which a current is produced not only during the downward ] 5 stroke of each pull-cord, but also during the upward or return stroke of each cord, so as to maintain a practically continuous current during the operation of the machine regardless of whether the cords are pulled separately or together. My invention has the further objects to combine with the apparatus an auxiliary electrical conductor and a switch of simple and convenient construction, whereby 2(* the current may be passed through the feet and the limbs as well as the upper part of the body, if desired, and to provide simple means for increasing or diminishing the strength of the current passed through the operator’s body. In the accompanying drawings : Figure I is a perspective view of my improved exercising-apparatus. Figure 2 2d is a diagram showing the various circuits. Figure 4 is a vertical section of the machine, taken lengthwise through the armature-shafts. Figure 4 is a vertical section in line 4—4, Figure 3, showing one of the circuit-breakers. Like letters of reference refer to like parts in the several figures. A is a rectangular box or casing, which encloses the magnetic-electric generator and which is attached at a suitable elevation to a wall or other support. B, B are two permanent or field magnets arranged side by side in the casing, and C, 0, are a pair of rotary armatures arranged within said magnet, respec¬ tively. Each of these armatures is provided with a hollow metallic shaft c, which is formed in one piece with the metallic body of the armature or secured 35 thereto and which turns upon a fixed shaft or spindle I). This fixed shaft extends through the side walls of the casing A, and its ends are secured to brackets or hangers D1, which are fastened to said side walls. The hollow shafts of the armatures are separately mounted on the fixed shaft 1), but in electrical contact therewith, and they pass through the side walls of the casing, their ends being 4() seated in bearings or recesses, formed in the inner sides of the brackets I)1, as shown in Figure 3. E, E are grooved driving-pulleys secured to the projecting portions of the respective hollow shafts c, and f, f the combined pull-cords and flexible electric [TVfir