US1082253A - Rewind mechanism. - Google Patents

Description

A. ANDERSON.

REWIND MECHANISM. APPLICATION FILED JUNE 11, 1910.

- 1 ,0 82,253. PatentedDec. 23, 1913.

2 SHEETS-SHEET 1.

A; ANDERSON.

REWIND MECHANISM.

APPLIGATION FILED JUNE 11, 1910.

Patented Dec. 23, 1913,

2 SHEETS-SHEET 2'.

- {av/W UNITED STATES PATENT OFFICE.

ALFRED ANDERSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO CONCORD COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF MAINE.

REWIND MECHANISM.

Specification of Letters Patent.

Patented Dec. 23, 1913.

Application filed June 11, 1910. Serial No. 566,285.

To all whom it may concern.

Be it known that I, ALFRED ANDERSON, a citizen of the United States of America, and resident of Chicago, Cook county, Illinois, have invented a certain new and useful Improvement in Rewind Mechanism, of which the following is a specification.

My invention relates to piano-players or player pianos, or other similar musical instruments in which perforated music is employed, and in which provision is made for unwinding and rewinding the music.

It relates more particularly to the mechanism for unwinding the music, and for then re-winding the same after the musical composition has been played.

The object of my invention is, therefore, to provide an improved and highly eflicient mechanism for unwinding and rewinding the music, and to provide a rewind, as it is sometimes called, of this character which will roll the music tightly and smoothly and without danger of tearing, as well as quickly and easily, as will herein after more fully appear. 0

To the foregoing and other useful ends, my invention consists in matters hereinafter set forth and claimed.

In the accompanying drawings-Figure 1 .is a front elevation of a re-wind mechanism embodying the principles of my invention. Fig. 2 is an enlarged front elevation of the clutch involved in said mechanism. Fig. 3 is an enlarged'detail section, in two horizontal planes, on line 3-3 in Fig. 1. Fig. 4 is an enlarged side elevation of the mechanism shown in Fig. 1.

As thus illustrated, the mechanism is supported by suitable framewor A. The usual tracker-bar B is supported upon the said framework. A spindle C is mounted in bearings on the said framework, at a point above the tracker-bar, and is adapted to engage one end of the spool or music roll, in the usual and well known manner. The roll D is mounted in suitable bearings on the frame, below the said tracker-bar, and is provided with a gear wheel d fixed to one end thereof, as shown. The horizontal shaft E is mounted in hearings on the framework, and is provided at its end with a pinion e that engages the upper edge of the gear wheel d, the said shaft being movable endwise in its bearing. This shaft is driven by a sprocket chain connection 6. The

sprocket wheel 6 is loose on the shaft E, and is provided with a pin 6 A sprocket chain c connects the sprocket wheel 6 with the sprocket wheel 0 on the spindle C, whereby the latter is driven to re-wind the music. The clutch member 0 is mounted on the shaft E, and connected therewith by means of a screw or other similar well known device, being provided with a pin 6 adapted to be engaged by the pin 6 to rotate the said shaft. The clutch member 6 has a circumferential groove 6 which groove is engaged by a pin e This pin 0 is mounted on the end of an arm 0", which latter is carried by a vertical rock shaft F, said shaft being supported in suitable bearings f, f on the frame. This shaft is controlled by the operator through the medium of a hand lever G, which is connected therewith through the medium of a rod 9, a rock shaft 9, another rod and an arm or lever F. A brake shoe H is adapted to engage the disk (Z 011 the end of the roll D, when the music is re-wound, to prevent the said roll from rotating too fast, and is operated by a rod it that connects with an arm it on the shaft F. A brake shoe I is pivoted upon the frame and adapted to engage the periphery of the disk 0 on the spindle C. The shaft F is provided at its upper end with an arm f which arm has its free end portion formed with a cam f that engages the outer end of the brake shoe I, whereby the latter is controlled. A spring 2' is secured to the under side of the brake shoe I and arranged to engage a stationary support Y", whereby the said brake shoe tends normally to engage the periphery of the disk 0.

The operation is as follows: When the pin 6 is out of engagement with the pin 6 and the pinion e is in engagement with the gear wheel (Z, the transmission of power is then to the roll D, whereby the music is unwound from the roll or spool engaging the spindle C. At this time the brake shoe I en gages the disk 0, because the cam portion 7' is out of engagement with the end of the said brake shoe. This keeps the spindle C from rotating too fast. hen the music is to be re-wound, the hand lever G is then operated to turn the rock shaft F, thus causing the pin 6 to engage the pin 6 and withdrawing the pinion from engagement with the gear wheel (Z. This opens the transmission of power from the shaft E to the roll D, and closes the transmission from the said shaft through the sprocket chain to the spindle G. Also, at this time, the brake shoe H is brought into engagement with the disk (Z, and the cam portion f is brought into engagement with the brake shoe I, caus ing the latter to be disengaged from the disk 0 on the spindle. In this way the said spindle is rotated to re-wind the music, and the brake shoe II at this time prevents the roll D from rotating too fast. In this way the music is unwound and re-wound in a smooth and easy manner, and with proper attention in each case, withoutdanger of tearing or injury thereto.

I do not, of course, limit myself to the exact construction shown and described.

lVhat I claim as my invention is:

1. I11 a player mechanism, a vertical support, a tracker bar, a roll spindle above the tracker bar, extending through said support, a drive shaft below the tracker bar, extending through the said support, a takeup roll below said driving shaft, a gear wheel for said roll disposed inside of said support, a pinion on the end of said shaft, engaging said gear wheel, a power transmitting con nection between said shaft and spindle, loose on the shaft, a clutch for controlling said connection, fixed on the shaft, a vertical rock shaft, a hand lever connected for operating said rock shaft, means on said rock shaft for operating said clutch, serving also to shift the shaft endwise to disengage said pinion from said gear wheel, by moving the pinion toward said support, a brake for the said spindle operated by said rock shaft, a flange for sai roll, a brake for said flange, a rod extending through said support to operate said last mentioned brake, and means for connecting said rod with said rock shaft.

2. In a player mechanism, a vertical support, a tracker bar, a roll spindle above the tracker bar, extendin through said support, a drive shaft below the tracker bar, extending through the said support, a take-up roll below said driving shaft, a gear wheel on one end of said roll, disposed inside of said support, a pinion on the end of said shaft, engaging said gear wheel, a power transmitting connection between said shaft and spindle, loose on the shaft, a clutch for controlling said connection, fixed on the shaft, 2 vertical rock shaft, a hand lever connected for operating said rock shaft, means on said rock shaft for operating said clutch, serving also to shift the shaft endwise to disengage said pinion from said gear wheel, by moving the pinion toward said support, a cam on the upper end of said rock shaft, a brake provided with means for engaging the under side of said cam, when said shaft is rocked, means on said spindle for engaging the top of said brake, a spring acting 011 the bottom of said brake, a brake for said roll, disposed inside of said support, a crank arm on the lower end of said rock shaft, means engaging said crank arm to support the said rock shaft, and means for connecting said arm with said last mentioned brake.

Signed by me at Chicago, Illinois, this 7th day of June, 1910.

ALFRED ANDERSON. lVitnesses S. LEWIS, WM. B. DURNION.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G.

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