US1067569A - Sound recording and reproducing machine. - Google Patents

Description

v w. w. ZACKEY. SOUND RECORDING AND REPBODUGING MACHINE.

APPLIOATION TILED JANA; 1912.

Patented Jul 15, 1913.

' such rs rarnn'r nion 'WILLIAM W. ZACKEY, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR 01E"v FORTY-NINE ONE-HUNDREDTHS TO CHARLES B. HEWITT, OF BURLINGTON, NEW JERSEY.

SOUND RECORDING AND REPRODUCING MACHINE.

Specification of Letters Patent. 7

Patented July 15, 1913.

Application filed January 4, 1912. Serial No. 669,590.

T 0 all whom it niay concern v Be it lcuown that I, WILLIAM W. ZACKEY, a citizen ofthe United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Sound Recording and Reproducing Machine, of which the following is a specification.

This invention relates to sound recording and reproducing machines, and more particularly to an improvement in sound boxes as shown in my former Patent N 0. 930,715, patented August 10, 1909.

The object of my invention is to provide a sound box which reduces metallic or scratch ing noises common type, and which noises mar and destroy the reproduction of the sound and cause the quality of the tone to be impaired. It has for a further object to provide a sound box which produces a tone rich in quality, I more a tone which ma be varied or adjusted so that the voice timbre may be accurately simulated and reproduced.

It further consists of other novel features of construction, all as will be hereinafter fully set forth.

eferring to the drawing z-Figure 1 represents a perspective of a s nd box embodying my invention. Fig. 2 represents a rear elevation of the same. Fig. 3 represents a vertical section on line 00-02: Fig. 2.

lg. 4 represents a perspective detail of the controlling member. Fig. 5 represents a dctail of one of the ears for supporting the stylus. Similar numerals of reference indicate corresponding parts in the figures.-

1 designates the sound box of 'a. sound recording and reproducing machine, preferably of ordinary shape and size, and, in the present instance, consisting of a ring 2 having an annular flange 3, preferably integral therewith, the two members forming a. casing or retaining chamber in which is located a diaphragm 4:, the latter being of suitable material for receiving and transmitting sound waves. This diaphragm 4, as here shown, is secured within the flange 3 by means of tubular members 5 and 6 which are preferably of rubber or like sound deadento instruments of this clearness and purity, and further",

concentrated so as to pass through the opening 8 to the amplifying devices.

10 designates the stylus bar composed, .in the present instance, of portion 12 which are preferably secured together by providing a like means, and as here shown, I have preferred to use also a pin 15 as an additional fastening for this arm, since any looseness of the stylus bar causes imperfections to at once he noted in the tone of the box, and it is therefore essential that the same should be firmly fixed to its supporting member. The

an arm 11 and groove 13 in the 1118111". ber 12 and within which the arm 11 is seat. ed ad securely fastened by solder 14, or the arm 11 is preferably secured at" one end to the diaphragm at by wax or like means and,

.as here shown, the end of the said arm is suitably bent as shown at 17, to bring the same into position at the center of the diaphragm 4.

The body portion 12 of the stylus bar 10 is suitably pivoted upon a pin or arbor 18, the'latter being mounted as here shown, in cars 19 attached to the flange 3 of the ring 2, and it will be noted that these ears are preferably provided with a'rounded corner 20, for a purpose presently to be described. These ears form hearings in which the arbor 18 is mounted and the body member 12 is fixedly secured to the arbor 18 by means of a set screw 21 or the like.

22 designates an opening formed in the body portlon 12 for the purpose of receiving the playing needle and the latter is-held in position by means of the.thumb screw- 22; as

is customary.

24 designates a stud secured in any suitable manner to the body portion 12 of the stylus bar 10, and in the present instance,

' passes through a slot '25 formed in a spring plate 26, the latter being held in adjustable position on the said pin 24.- by means of nuts 27 as will be apparent. This plate 26 is preferably provided with springfingers 28 outwardly disposed on the same side of the plate 26 and located so as to en age respectively' the rounded corners 20 o the cars 19 heretofore referred to. The function of this spring plate will be readily apparent as it iifYiS 0 i-ei'mfn the stylus ear to marine} wwiiion after he sound wave has 0 lier-giwi on the diaphragm 4 and by which he latter 1; deflected fmm 1U; usual QOSltlOil m3. he adj :stment of the nuts ]4 ;j11iiltil)l'l of ihe spying piuiie 5e mine the riegi'i'ee of Flexibility of the ciizv pin'n zni. Of course it will be underemod iii-m the slut 25 iii ih spyin g plate 526 eiiows f r variation in the pesiUc-n of fee s jii-ing' lingers 28. thereby. "aryiiig The QiifG'aC'iiYG 'iSLHE of these two ziieniibere.

It will now be apparent that I have 1)1O- Killed a gound box, having a, stylus bai- HJULUHIQGL on a single eupper and 01i ei' zn'1e i 1 :1 preferred embodiment been found in practice U setisfnetm'y and reliable resnhe, it is to be nndeysiioe i that sun-1e susceptible 0:1? modification in uifieus particulars with- 011? deeming r0211 1e sJiYit 0.1. scope 0f iii. ina'eniioii or aer'iieing any of iis miYzinand describei thereof when has Wing "thus desscribed my invention, What chain: s new LUJIU. desire to secure by Let-- 301's Patent is In a sound reeorfiin end repreducing insicfisine, a sound 0031. 7 iphi'agn'i operative fiiei'eiu, an :ireiwz suitably mouiiied riating zniir'x'emeni, a stylus bar fixcarried by Sui C. arbor, :1 spring piete .ied. by said ius bar and projecting on spring finger int can I I miner. side them-0f, 1L axiih each end eff *liifi plate, an

em I i aid b fern!" fiegee and me i em'ing fi when 072 sand.

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