US1219934A

US1219934A - Attachment for phonographic reproducers.

Info

Publication number: US1219934A
Application number: US3730115A
Authority: US
Inventors: Edmund Gollmer
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-06-30
Filing date: 1915-06-30
Publication date: 1917-03-20
Anticipated expiration: 1934-03-20

Description

E. GOLLMER. I ATTACHMENT FOR PHONOGRAPHIC REPRODUCERS.

Patented Mar. 20,1917.

snares ATEN orFIoE.

EDMUND GOLLMER, 03? NEW ULM; TEXAS.

ATTACHMENT FOR EHONOGRAPHIC BEPRODUCERS.

newest.

Specification of Letters Patent.

Patented Mar. 20, 1917.

Application filed June so, 1915. Serial N03130:.

To all whom it may concern.

Be it known that l, EDMUND GoLLMER, a citizen of the United States, residing at New Ulm, in the county of Austin and State of lllexas, have invented certain new and useful Improvements in Attachments for Phonographic Reproducers; and I do hereby declare the following to be a full, clear, and

exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in attachments for phonographic reproducers and the principal object of the invention is to provide a damper adapted to be applied to reproducers to elimi-- hate the crackling and grinding noises usually accompanying the use of such 'mstrument's.

Another object of the invention is to provide a device which will effectively bring out' the tones accurately and clearly and which will eliminate other disturbing noises.

A' ffirther' object of the invention .is to provide an attachment which may be made of cork, felt or other soft resilient material which will effectively take up the undesirable vibrations of thediaphragm.

' With these and other objects in view, the invention consists in the novel combination and arrangement of parts which will be fully set forth in the following specification and accompanying drawings, in which Figure 1 is a side view in elevation of a reproducer showing this improved device applied thereto.

.Fig. 2 is a vertical sectional view through the reproduceron line 2-2 of'Fig. 1 showing' the diaphragm in elevation and also showing the stylus bar in elevation, and

Fig. 3 is a perspective view of the attachment.

Referring now to the drawings by characters of reference, the numeral 1 designates as an entirety the housing of the reproduce]- m, which is mounted the diaphragm The usual stylus bar 3 is secured to the diaphragm centrally in the ordinary manner and extends downwardly to the plate 4; mounted to rock on the hearing 5. The usual stylus retainer 6 is provided in-which the needle or stylus 7 is secured by means of the thumb screw 8.

The attachment best illustrated in Fig. 3 is designated generally by the numeral 9 and this attachment 9* comprises a cylindrical having body 10 of a relatively soft resilient matn'ial such as rubber, cork, felt or the like, which is formed with the transversely extending groove 11 in which the stylus bar "ests.

It will be, pparent from the foregoing that in use the attachment is slipped beneath the stylus bar as illustrated in Figs. 1 and 2 and in this position it will be evident that the stylus bar will rest in the groove 11 hereinbefore referred to. The flat under face of the cylindrical body will engage the dia-. phragm 2 and serve to deadenthe undesirable noises, thereby eliminating much of the crackling and grating sounds usually ac-' companying the use oftalking machines and phonographs.

While in the foregoing there has been within the body, and a stylus arm connected to the diaphragm, of a cylindrical pad of soft resilient material positioned beneath the stylus arm and bearing on the diaphragm to eliminate undesirable sounds.

3. An attachment for reprojlucers including the combination with a reproducer having a stylus arm attached thereto, the said arm enlarging toward the end opposite that attached to the diaphragnnof a pad of a soft resilient material positioned between the stylus arm and diaphragm and arranged so that the same may be adjusted along the stylus arm to vary the pressure on the diaphragin.

4 The combination with a reproducer a diaphragm, a stylus arm attached centrally to the diaphragm, a needle holder at the end of the stylus arm opposite.- that which is connectedto the diaphragm, the same arm being enlarged toward the needle holder, of a circular pad of a soft resilient material having a groove extending transversely through one face thereof said pad being adapted to be positioned between the stylus arm and the diaphragm with the stylus arm lylng 1n the groove to prevent 'laieral movement of the pad with relation to the stylus arm.

5. The combination with a reprodueer holder, of a circular pad of a soft resilient material having a groove extending transversely through one face thereof. said pad being adapted to be positioned between the stylus armand the diaphagm with the stylus 15 arm lying in the groove to prevent lateral movement of the pad with relation to the stylus arm, said pad being adapted to be adjusted longitudinally of the stylus arm to vary its pressure against the diaphragm. 20

In testimony whereof I'alfix my signature in presence of two witnesses.

- EDMUND GOLLMER. Witnesses ROBERT V0161, L. B. FINK- Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.