US1132497A - Phonograph. - Google Patents

Description

J. L. STEVENS.

PHONOGRAPH.

APPLIIQATIORIILED 0013.5, 1910.

1,1 32,4;97', Patented Mar. 16, 1915.

2 SHEETS-SHEET 1- EMMA tom THE NOBRIS PETERS CO" PHOTD-LITHO" WASHINGTON, D. C

J. L. STEVENS.

PHONOGRAPH. APPLICATION FILED 0015.5, 1910.

' Patented Mar. 16, 1915.

2 SHEETS-SHEET 2.

THE NORRIS PETERS c0. PHOTO LITHO,, WASHINGTON D. C.

JOHN LYMAN STEVENS, or SOUTH BEND, WASHINGTON.

PHONOGBAPH.

Specification of Letters Patent.

Patented Mar. 16, 1915.

Application filed October 5, 1910. Serial No. 585,467.

object of the invention is to provide an im-,

proved phonograph in which the stylus and sound reproducer are stationary and the cylinder movable longitudinally thereunder.

Another object of the invention is to improve and simplify the construction and operation of apparatus of this character so as to be comparatively simple and inexpensive to manufacture, reliable and efficientin use and readily operated.

Another object of the invention is the provision of a novel record operating means for simultaneously rotating the record and giving it a movement of translation under the stylus of the reproducer which is sta tionary.

With these objects in view and others. as will appear as the description proceeds, the invention comprises the various novel fea tures of construction and arrangement of parts which will be more fully described hereinafter and set forth with particularity in the claim appended hereto.

In the accompanying drawings, which illustrate one embodiment of the invention, Figure 1 is a front view of the phonograph. Fig. 2 is an end view thereof. Fig. 3 is a transverse section on the line 33 of Fig. 1. Fig. 4 is a plan view.

Similar reference characters are employed to designate corresponding parts throughout the several views.

Referring to the drawings A designates the usual box or casing in which the motor mechanism, not shown, is mounted. On the top of this casing are two horizontal rails 1, which constitute a track on which travels a carriage B having grooved wheels 2 r1d1ng on the rails. This carriage has an upwardly extending pedestal or bearing 3 at one end in which is rotatably mounted a horlzontal record cylinder 4;, the journal of the record cylinder being provided with a stepped pulley 5 for receiving a belt 6 whereby the cylinder is driven. The pedestal or bearing is made of two parts connected together by a hinge 7 so that the cylinder can be thrown upwardly to facilitate replacing or removal of the record.

Mounted in the lower part of the pedestal 3 1s a rotating shaft 8, which is disposed parallel with the axis of the cylinder 4: and on one endis a reversely disposed stepped pulley 9 around which the belt 6 passes. This shaft is provided with screwthreads 9 of such a pitch that it will cause the cylinder to move longitudinally at the same rate as the sound producing groove in the record.

Mounted on the box A is an L-shaped support 10, provided with a finger piece 19, said support having seated in its long arm 20 a half nut 11 that engages under the threaded portion of the shaft. This support is hinged at 12 to the box and yieldingly held beyond a predetermined position by a spring 13, the support being rigidly held in a predetermined position by the end of the short arm 21 coming into fiat contact with the upper surface of the casing A. The shaft slides through a bearing 14; on one end of the box A and at this bearing is a stepped pulley 15 that is keyed to the shaft so that the latter can slide back and forth in the pulley, the said'pulley being rotated by a belt 16 that passes around a stepped pulley 17 on the drive shaft of the motor mechanism within the box A. By means of the belts 6 and 16 the speed of rotation of the record can be changed at will. Mounted on the box is the usual sound reproducing device C that includes a stylus 18 that rides on the record in the usual manner. v

The nut 11 on the support 10 is disposed at one end of the shaft and as the motor is turned the shaft will rotate and cause rotation of the record. At the same time the nut will cause the shaft and carriage B with its attached parts to move longitudinally, thereby carrying the record under the relatively stationary stylus. When the end of the record has been reached it is merely necessary to depress the support 10 from the restricted resilient portion 22, thereby apparent to those skilled in the art to which the invention appertains, and while I have described the principle of operation of the invention, together with the apparatus which I now consider to be the best embodiment thereof, I desire to have it understood that the apparatus shown is merely i1lustrative, and that such changes may be made when desired as are within the scope of the claim appended hereto.

Having thus described the invention what is claimed as new, is

In combination with a phonograph casing, a feed screw and a half nut for said screw, of a support for said halt nut comprising an L-shaped member having a long arm, a short arm and a finger piece, a hinge secured to the short arm and casing for pivotally mounting said member on said casin said member being rigidly supported in a predetermined position by the end of the short arm adjacent said hinge coming into flat contact with said casing, and a spring interposed between the long arm and casing for yieldingly supporting the said member beyond its predetermined position and in operative engagement with said screw.

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

JOHN LYMAN STEVENS.

Witnesses H. N. B. HEWEN, IDA B. STARK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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