US957206A

US957206A - Talking-machine.

Info

Publication number: US957206A
Application number: US25844205A
Authority: US
Inventors: Robert L Gibson
Original assignee: Victor Talking Machine Co
Current assignee: Victor Talking Machine Co
Priority date: 1905-05-02
Filing date: 1905-05-02
Publication date: 1910-05-10
Anticipated expiration: 1927-05-10

Description

R; L. GIBSON.

'TALKING MACHINE.

APPLICATION FILED MAY 2,1905

Patented May 10,

( uumlroz v Q rVIL ment in Talking-Machines, of which the folwhich ROBERT L. GIBSON, 0F PHILADELPHIA, PENNSYLVANIA,

ASSIGNDR TO VICTOR- TALKING-MACHINE.

Specification of Letters Patent.

Application filed May 2, 1965.

L mi recanted May Serial No. 258.442.

To all whom it may concern:

Be it known that I, ROBERT L. GIBSON, of the city and county of Philadelphia, State of Pennsylvania. have invented an improvelowing is a specification.

My invention has reference to talking machines and consists of certain improvements which are fully set forth in the following specification and shown in the ac-- compauying drawing which forms part thereof.

The object of my invention is to provide a coi'isliruction of universal arm tor the sound ho): which shall einhody Simplicity and capacity for, movement with the last possible resistance.

' In carrying out my inventioi'i I provide a bracket having a tubular neck adapted to Support the horn, and combine therewith a tubular ari'n carrying the sound box at its free end and ha ring the other end journaled in the neck of the bracket through the medium of antifriction bails said halls fitting into a. groove semicircular in cross eection formed in the neck of the h acket and supporting a flange secured to the pivoted end of the tubular arm whereby the arm is centralized and supported by the halls.

My invention also con'iprehends details of construction which, together 'ith the tea tures above specified will be better understood by reference to the drawings, in

Figure 1 is a side eievation of a graine- PilOIlQ-Ol talking machine embodying my invention; Jig. 2 is a sectional elevation on line 2--2 of: Fig. 3 showing the manner of supporting the tubular arm which carrieav the sound box; and Pig. 3 is a similar view on line 3--3 of Fig. 2. l

A is the motor be); or case which rotates the table or support B carrying the record disk.

C is a bracket. or arm secured to the side if the box 01 case A and terminating in a tubuiar end C, the aperture havinga Verticai axis.

The horn is supported by the bracket and is sleeved into the tubular part so as to be adjustable thereon and permit. the horn to he turned in any direction-in which the. sound waves are to he propagated.

H is a tubular arm carrying at. its tree end the sound box I and having its other end terminating in vertical tubular portion h adjustahly connecting with the tubular portion C oi the bracket: whereb said arm may swing thereon as a center. More Specifieally'this coimection consists oi the tubular part i" into which is screwed or otherwise secured a bushing E having a flange c the diameter of which is less than the internal diameter of the tubular end C of the hraclaet (I. The interior of the end C is provided with a groove 1: near its lower part which forms a trachway; and said groove is made preferably semicircular in cross section to receive a series of ai'iti-lrictimi halls L and in which said halls are free to travel, they being held therein h the tubular bushing id haring its flange 0 resting upon the halls. in thia'inanner the vertical tuhular part i oi the tuhular arm ii is free to rotate about a Vertical axis with the least possible frictional resistance.

To prevent any rattling or griiuling loctween the parts (1" and F, i preter to place between them an annular washer t of insulating or non-metallic (:ouipoaition. 'lhia *aaher should not. he suihciently thick to produce any binding 1 undue friction.

The parts F and U of the tubular arm are jointed on a trzuissverae axis. To secure this structure, i provide the part F with downwardtv extending aide 211111;; F which have pivot screwa upon which the elbow part; H of the arm ii. rotates. This part ii" is preferably made with a taper, b ing larger adjacent to the pivots f and also turned upward in an elbow ii. The juncture of this elbow and part. F is made in a cylindrical plane whose axis is the pivots f. This junction of the two part5 ii and i is indicated at J and is preferably 'fOI'Il'ltKl with a. very slight clearance. ;-;o as not to create any friction hetwcen the said. parts ii and l,h11tuot enough olclearance to perulit. air waves to eacape, and in that Wu re duce the ellectiveness oi the artimilatimz.

To enable .the free end of the arm H to he turned up and held out oi the ';1}* of the record tahlet when replacing it. with a new one, ,i provide a s riu catch K on the part I? which engages :1 lug is on the elbow H of the tuhular arm iii.

free end of the arm in an elevated position together with the sound hon. When the arm lowered into sound producing posi.- tion with the stylus of the soundhox resting This supports the terial friction.

upon the record tablet, the lug 7c of the arm is above and clear of the spring catch K as shown and consequentlyv there is no interference with the free movement of the arm both vertically and laterally at its free end. The weight of the part II of the arm pulls down upon the pivots f during sound reproduction and consequently the support of the part F upon the balls is uniform and evenly distributed, so that there is no ma- This freedom of lateral movement enables the stylus to follow the grooves of the record tablet without material resistance thereby enabling a more sensitive response by the sound box to the variations of the record grooves upon the stylus.

While I prefer the construction shown, I do not confine myself to the details as these may be modified in various ways without departing from the spirit of my invention.-

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a talking machine the combination of the bracket having a tubular end having a trackway for antifriction balls, a tubular arm carrying at one end a sound box, a flanged bushing secured to the other end of the tubular arm and having an external diameter smaller than the internal diameter of the tubular end of the bracket, antifriction balls arranged between the trackway and the flange of the bushing for supporting the pivoted end of the tubular arm, and a horn supported upon the tubular end of the bracket independent of the bushing and pivoted arm.

2. In a talking machine the combination of the bracket having a tubular end having a trackway for antifriction balls, a tubular arm carrying at one end a sound box, a

flanged bushing secured to the other end of the tubular arm and having an external diaineter smaller than the internal diameter of the tubular end of the bracket, antifriction balls arranged between the trael'rway and flange of the bushing for supporting the pivoted end of the tubular arm, a nonmetallie washer surrounding the bushing and interposed between the upper end of the tubular arm and bottom of the tubular end of the bracket, and a horn supported upon the tubular end of the bracket independent of the bushing and pivoted arm.

3. In a talking machine the combination of the bracket having a tubular end having a trackway for antifriction balls, a tubular arm consisting of a vertical pivoted part and a horizontal tubular part carrying at one end a sound box and having its other end pivoted to the vertical pivoted part so as to swing vertically about. a transverse axis, a flanged bushing secured to the vertical tubular part of the arm and having an external diameter smaller than the internal diameter of the tubular end of the bracket, antifriction balls arranged between the trackway and flange of the bushing for supporting the pivoted end of the tubular arm, and a horn supported upon the tubular end of the bracket independent of the bushing and pivoted arm.

4. In a talking machine the combination of the bracket having a tubular .end having porting the pivot/ed end of the tubular arm,

a spring catch to hold the horizontal tubular part of the arm in an elevated posi tion upon the vertical tubular part, and a horn supported upon the tubular end of the bracket independent of the bushing and pivoted arm.

5. In a talking machine, the combination with a bracket having a tubular end provided with a groove for antifriction balls, a horn supported upon the tubular end, a tubular arm carrying at one end a sound box, and having its other end turned upward beneath the tubular end of the bracket, a flanged bushing secured upon, the upwardly turned end of the tubular arm, and antifriction balls fitting into the groove of thctubular end of the bracket and supporting the flange of the bushing.

(3'. In a talking machine, the combination with a bracket having a tubular end provided with a groove semicircular in cross section for antiiriction balls, a horn supported upon the tubular end, a tubular arm carrying at one enda sound box, and having its other end turned upward beneath the tubular end of the bracket, a flanged bushing screwed upon the upwardly turned end ot the tubular arm, and antifriction balls fitting into the groove of the tubular end of the bracket and supporting the flange of the bushing.

7. In a talking machine, the combination with a bracket havin a tubular end provided with a groove or antifriction balls, a horn supported upon the tubular end, atubular arm carrying at one end a sound box and having the other end turned upward beneath the tubular end of the bracket and also being jointed so that thesound box end ma be turned upward, means o support the cut of the arm In its turned up position a flanged bushing secured upon the upwardly of said support and the exterior of said bushing, and a tubular sound box arm communicating With said bushing and wholly supported by said projecting portion.

21. The combination with a support havingan opening, of a hollow bushing having one end flanged and supported within said opening and its other end projecting ontsitle of said opening. anti-friction balls between said flanged end and the interior of said support, and a tubular sound box arm carried by said projecting end.

22. In a talking machine, the combination with a support having an opening, of a hollow bushing rotatably mounted upon a fixed axis and entirely supported from within said opening and having a portion projecting outside of said opening. and a tubular sound box arm communicating with said bushing and wholly supported by said projecting portion.

- 23. In a talking machine, the combination with a support having an opening, of a hollow bushing rotatably supported entirely from within said opening, a pair of arms supported by said bushing and extending outside of said opening. a tubular sound box arm comntunicating with said bushing. and a pivotal connection between said pair of arms and said sound box arm, said sound box arm being entirely supported through said pivotal connection.

24. In a talking machine, the combination with a support having an opening, of a hollow rotatable bushing within said opening, and having one end projecting outside of said support, rotatable antit'riction means between the interior of said support and the exterior of said bushing forming the sole support for said bushing, and a tubular sound box arm carried by said projecting end.

25. In a talking machine, the combination with a support. having an opening, of a. hollow rotatable bushing within said opening, rotatable anti-friction means! between the interior of said support, and the exterior of said bushing, and a hollowsound box arm entirely supported by said bushing, said sound box arm being formed of relatively movable inter-communicating portions.

26. In a. talking machine, the combination with a case, of a bracket secured thereto and extending upwardly therefrom and terminating in a tubular end, a rotatable bushingentirely supported from Within said tubular end, and having an end projecting outside thereof, and a tubular sound box arm entirely supported by said projecting end.

27. In a talking machine, the combination of a tubular support having an internal track Way for rotary anti-friction means, a rotatable bushing in said tubular support and having an external diameter smaller than the internal diameter of the support, anti-friction means arranged between the track Way and the bushing, sound amplifying means carried by said tubular support, and a tubular sound box arm carried by said bushing.

28. The, combination with a bracket attached atone end to the casing of a talking machine and having a tubular socket at its free end, of a rotary sleeve carried by said socket and having its lower end projecting beyond the lower edge of said socket, an adjustable piece carried by said projecting end of the rotary sleeve, horizontal pivots supported by said ring piece, a sound conveying arm supported by said pivots and having an upturned and curved end, a tubular piece having complementary curved lower end interposed between the ring piece and the upturned curved end of the sound conveying arm, and a yielding cushion interposed between the said tubular piece and said ring piece.

In testimony of which invention, I hereunto sct my hand.

J as. R. NECK.