US1498679A - Massage vibrator and circuit therefor - Google Patents

Description

June 24', 1924:! 1,498,679

E. E. CLEMENT MASSAGE VIBRAT'OR AND CIRCUIT THEREFOR Filed Sept. 26 1919 a an m coooooeo m' INVENTOR Patented June 24, 1924.

UNlTED S TATES EDWARD E. CLEMENT, OE OCEAN CITY, HIE-N JERSEY.

MASSAGE VIBRATOR AND CIRCUIT THEREFOR.

Application filed September 26, 1919. Serial No. 3203, 189.

To all whom it may concern Be it known that I, EDWARD E. CLEMENT, a citizen of the United States, residing at Ocean City, in the county of Cape May and State of New Jersey, have invented certain new and useful Improvements in Massage ibrators and Circuits Therefor, of which the following is a specification.

My invention relates to vibrators. and especially those employed for mechanical massage. It has for its object the provision of means to produce fine sustained longitudinal vibration of the. finger tips of an operator. which, if produced by the voluntary muscular action of the operator requires many years of practice, and has certain deleterious effects well known to those skilled in the art.

To attain my object I employ an electrically actuated device, so proportioned and adjusted that its natural period of vibration gives the correct frequency and amplitude of vibrations. and cause these to be communicated to the bony structure of the hand of the operator by means which however I do not claim as my own. the same being the joint invention of myself and Loraine M. Clement. I shall claim herein the structure and method of operating the vibrator, and certain circuit arrangements Very briefly stated my vibrator depends on the principle of having the armature fixed, and the entire magnet structure vibrate.

My invention is illustrated in the accompanying drawings. in which- Fig. 1 is a top plan view of the vibrato-r.

Fig. 2 is a bottom plan view of the same.

Fig. 3 is a side view of the same.

at. is a diagram of the circuit connections on the vibrator.

Referring first to Figs. 1 to 4 inclusive, the vibrator comprises a base plate of iron; marked (1", having two flanges a and a. On one side an integral ear a is turned up, and to this ear is secured a bent spring m preferably of steel. the other end of which is secured to the magnet structure M and carries the same. This structure comprises the two cores m m, carrying windings m and m and connected one end by the iron bar we and at other by the brass bar m Mounted on the bar m is a contact spring m, which when the magnet is deenergized touches the contact m screwed through the flange a with interposed insulation. To prevent sticking or freezing of the magnet poles to the flange a which constitutes their armature, a copper strip a is centrally riveted to the inside of the flange with its ends projecting both ways between the ends of the magnet poles and the flange am.

The circuit of the vibrator is through the contact m spring at, spring m frame or base to the soldered terminal m wire m, winding m, winding m, both in proper direction to reinforce each other in magnetic effect, wire m. As the current energizes the magnet the whole structure is drawn toward the flange at until the spring we leaves the contact m when the flow of current is interrupted and the further swing of the magnet structure is only that due to its acquired momentum, which may be regulated; by regulating the amount of current passing through the windings during the period of energization. Atthe end of its swing the magnet structure is retracted by the spring m the energizing circuit is thereby reestablished, and the vibration repeated as long as the flow of current in the circuit external to the vibrator is assured.

For strong vibratory massage the current is made strong enough to cause the ends of the magnet poles m and m to actually impinge against the flange a of the base. For weaker vibrational massage the current is cut down so that the swing of the magnet structure checks itself without actually touching the flange- In either case the vibration sets up waves of metallic vibration in the base and flange a, which waves cannot escape except through the air and through the object to which the base is attached. The proportion of the waves which escape through the air is negligible because the base is attached throughout its under surface to a harness which in turn is attached to the back of the hand of the operator.

mg thus described my invention what I claim is:

A vibrator com rising a base plate of iron With parallel enc. flanges and 21 side ear an actuating electromsgnet mounted in its entirety on a spring secured to the ear with its pole pieces in proximity to one flange, a fixed contact secured on the other Hav n Han s, and a cooperating contact secu ed on the magnet structure, one of said contacts being insulated, together with circuit con nections for said electromagnet controlled h v said contacts.

In testimony whereof I aflix my signature.

EDNARD E. CLEMENT.

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