US743896A - Sanitary attachment for sound receivers or transmitters. - Google Patents

Description

PATBNI'ED NOV. 10, 1903.

A. LEVI. SANITARY ATTACHMENT FOR SOUND RECEIVERS 0R TRANSMITTERS.

APPLICATION FILED JULY 23, 1903 K0 MODEL.

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ma "cams UNITED STATES Patented November 10, 1903.

PATENT OFFICE.

ABRAHAM LEVI, OF BALTIMORE, MARYLAND, ASSIGNOR OF TWO-THIRDS TO LOUIS LEVI AND MAX LEVI, OF BALTIMORE, MARYLAND.

SANITARY ATTACHMENT FOR SOUND RECEIVERS 0R TRANSMITTERS.

SPECIFICATION forming part of Letters Patent No. 743,896, dated November 10, 1903. Application filed July 23, 1903. Serial No. 166,666. (No model.)

This invention relates to a sanitary attach ment for sound receivers or transmitters, such as telephones or speaking-tubes, and has for its object to'provide a simple and inexpensive device which may be readily attached to the sound instrument and easily operated to present a clean or new surface to the ear or month each time the instrument is used.

In the accompanying drawings the invention is illustrated as applied to a telephone receiver; but it is to be understood that the same form of device is as readily applied to telephone transmitters or. speaking tube mouthpieces.

In the drawings, Figure '1 illustrates a side elevation of the device attached in this case to a receiver; Fig. 2, a central vertical sec-' tional view of the detached device, and Fig. 3 is a rear view of the detached device.

Referring to the drawings, the letter a designates a telephone-receiver of well-known construction, and secured to said receiver is a split ring-clip b, whose ends are adapted to be secured together by a screw 0. A plurality of spring-fingers d are secured to the ringclip, and said fingers at their free ends are each provided with a hook d.

The'de'vice so far described. is merely the holder of the sanitary attachment and is adapted to be clamped to the telephone instrument, whether it is the receiver or transmitter, and may remain permanently attached thereto.

Afoundation-platee of suitable materialsheet metal or cardboard-is provided with a central openingf, and around said opening the plate is also provided with a plurality of fastening devices gstaples or the like-with which the hooks d of the spring-fingers dengage, whereby to detachably support said plate in position in front of the instrument. The plate by preference has at one side a tapered or rounded point i. Secured to the platoon the outer surface are a plurality of sheets j such as paper, thin fabric, or other suitable material-so as to form a pad, and these sheets are provided with acentral openingj', which register or have position in front I of the opening of the instrument.

As illustrated in the drawings, the openings j in the diiferent sheetsj vary a little in diameter, the diameter of the opening in the sheet next adjoining the plate 8 being larger than the diameter of the opening in the out-.

crmost sheet. Thus the opening through the entire pad of all the sheets is tapering or gradually diminishing in diameter as it recedes or extends outwardly from the instrument and the foundation-plate. This is an important feature, as it insures that contact with the ear or lips of a person using it shall be made with onlyone sheet at a time and that the outermost or exposed sheet. This pad of sheets having an opening through all the sheets constitutes the sanitary attachment.

These sheets j are preferably shaped like the foundation-plate e and have a tapered point t". It will also be seen that where the pointangle 1" is formed in the sheets the pad or plurality of sheets are beveled or inclined from the outermost or exposed sheet toward the foundationplate 8, so as to leave the point of the outermost sheet a little longer. By thus beveliug the sheets at this angle point the pointed edge of each sheet is made prominent and easily grasped by the finger of a person during the operation of removal.

The operation, briefly stated, is as follows:

The ring-clamp b is first attached to the in- The device is then ready for exposing a fresh sheet against which the ear may be placed or, if it is the transmitter, against which his mouth may come in contact with a feeling of safety. When the person is through, the device is left as he used it and the next person tears 0% a sheet before using the instrument.

When all the sheets of one pad have been used or exhausted, the hooks are disengaged, the old plate 6 removed, and a new pad put in place.

Having thus fully described myinvention, what I claim as new, and desire to secure by Letters Patent, is-- 1. A sanitary attachment for telephones, speaking-tubes and like instruments comprising a plurality of sheets in the form of a pad and provided with a sound-opening which tapers or gradually diminishes in diameter from the innermost sheet where it is largest to the outermost sheet where it is smallest, in

combination with means for securing said pad to an instrument. 2. A sanitary attachment for telephones, speaking-tubes andlikeinstruments comprisinga plurality of sheets in the form of a pad and each sheet having a sou nd-opening which is of a. different diameter from the soundopenings of all the other sheets of said pad whereby to form asound-opening through the pad of sheets which is tapered from the innermost sheet where it is largest to the outermost sheet where it is smallest and the outer edge of the pad of sheets being provided with a portion which is beveled or inclined from the outermost sheet inwardly.

In testimony whereof I amx my signature in the presence of two Witnesses.

ABRAHAM LEVI.

Vitnesses: 1

CHARLES E. MANN, J12, G. FERDINAND VoGT.

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