US1000549A

US1000549A - Music-sheet winding and rewinding mechanism.

Info

Publication number: US1000549A
Application number: US61361311A
Authority: US
Inventors: Gustaf Wm Paulson; Rudolf Paulson
Original assignee: Henry F Miller & Sons Piano Co
Current assignee: Henry F Miller & Sons Piano Co
Priority date: 1911-03-10
Filing date: 1911-03-10
Publication date: 1911-08-15
Anticipated expiration: 1928-08-15

Description

G. W. & R. PAULSON.

MUSIG SHEET WINDING AND REWINDING MEGHANISM.

APPLICATION FILED MAR. 10, 1911.

1,000,549, Patented Aug. 15, 1911.

2 SHEETSSHEET 1.

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G. W. & R. PAULSON.

MUSIC SHEET WINDING AND REWINDINGIVIEUHANISM.

APPLICATION FILED MAR. 10, 1911.

Patented Aug. 15, 1911.

2 SHEETSSHEET 2.

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UNIT D sTATEs PATENT OFFICE.

GUSTAF WM. PAULSON, OF BELMONT, AND RUDOLF PAULSON, 'OF BOSTON, MASSACHU- SETTS, ASSIGNORS 'IO HENRY F. MILLER & SONS PIANO COMPANY, A CORPORATION OF MASSACHUSETTS.

MUSIC-SHEET WINDING AND REWINDING MECHANISM.

Application filed March 10, 1911. Serial No; 613,613.

To all whom it may concern."

Be it known that we, Gus'rar \V. PAUL- soxz, a citizen of the United States, residing at Belmont, in the county of Middlesex, and RUooLr PAULSON, a citizen of the United States, residing at Boston, in the county of Suffolk, both in the State of Massachusetts, have invented new and useful Improvements in Music-Sheet Winding and Rewinding Mechanism, of which the following is a specification.

This invention relates to improvements in music sheet winding and rewinding mechanisms used in connection withmechanically- "o erated musical instruments and has for its ject to provide a mechanism of this class which shall be simple in construction, certain and reliable in its action, and in which.

the brakes for the tensioning of the music sheet as it passes from the music spool to the take-up roller and vice versa shall become effective by merely the reversal of the direction of movement of the music sheet without the aid of any extraneous devices such as neumatics for setting and releasing the rakes such as are commonly employed.

I To these ends, the invention consists in the novel features of construction and in the combination and arrangement of parts set forth in the following specification and particularly pointed out in the claims.

Referring to the drawings: Figure 1 is a front elevation of a music sheet winding and rewinding mechanism embodying our invention, partly broken away. Fig. 2 is a side elevation of the mechanism viewed from the right hand side of Fig. 1. Fig. 3 is an enlarged detail side elevation, partly in section, of the brake for the music spool. Fig. 4 is an enlarged detail side elevation, partly in section, of the brake for the takeup roller.

Like numerals refer to like parts throughout the several views of the drawings.

- Tnthc drawings, 5 is music spool and 6 a take-up roller journaled in any usual or desired bearings in a frame 7 constituting also a support for a tracker 8 across which a mu-' sic sheet 9 travels from the music spool to.

the take-up roller and vice versa. The music spool 5 is connected to be driven by a shaft 10 and the take-up roller 6 is con- ;nected to be driven-by a shaft 11, both of these shafts being journaled in suitable bearings in the frame 7 in any usual or desired manner.

A motor 12, which may be of any usual or desired construction, has a driving shaft 13 which is connected by any suitable mechanism to the

shafts

10 and 11 to drive either of them at will in the proper direction to cause the movement of the music sheet 9 in one direction or the other, as desired. In the present instance, the shaft 13 is connect ed to drive a clutch member 14 by a sprocketwheel 15 secured to said shaft and connected by a chain 16 to a sprocket wheel 17 formed on or. secured to the clutch member 14. The clutch member 14 is loosely mounted upon a stationary shaft 18 in such a manner as to be capable of rotating and sliding longitudinally thereon.

The shiftable clutch member 14 may be thrown into engagement on one side with a clutch member 19 and on the other side with a clutch member 20, the former being provided with a'sprocket wheel 21 connected by a chain 22 passing around an idler 23 to a sprocket wheel 24 secured to the music spool shaft 10, while the clutch member is provided with a sprocket wheel 25 connected by a chain 26 to a sprocket wheel 27 secured to the take-up roller shaft 11.

In the operation of the mechanism the clutch member 14: is constantly driven in one direction by the motor 12 and is thrown into driving engagement withthe clutch member 19 or the clutch member 20 by means of a suitable clutch shifter 28 so as to cause the motor to drive the music spool 5 in the direction of the arrow at or to cause the motor to drive the take-up roller in the direction of the arrow 1) according to the direction in which it is desired to have the music sheettravel.

The music spool 5 is provided with suitable braking means and the take-up roll 6 is also provided with suitable braking means, in the present instance such braking means consisting of a brake drum 29 loosely mounted upon the shaft 10 and havin a brake shoe 30 bearing therea dust and a brake drum 31 loosely mounte upon the shaft 11 and having a brake shoe 32 hearing thereagainst. The brake shoe 30 is preferably mounted upon a lever 33 fulcrumed on a pivot 34 and the brake shoe 32 is preferably mounted on a lever 35 fulcrumed on a pivot Specification of Letters Patent. Patented Aug. 10', 1911.

ot theratchet' its-point is held against; acci- I I ing either said spool or said roller, l?

86. The brake shoes are held in engagement with their respective brake drums preferably by a spring '87 connecting the

levers

33 and 35 to each other and provided with :1

- 5 screw-threaded adjusting rod 38 by means permitting relative rotation of the spool '5 2 andthe brake drum 29 in one direction, but looking said spool and said brake drum against relative rotation in the opposite direction and by providing suitable means connecting the brake drum 31 to the shaft 11 permitting vrelative-rotation of the takeup roller 6 and the brake drum 31 in one direction but looking said roller and "said orake drum against relative rotation in the opposite direction.- In other words, the means just referred to automatically connects the spool to drive its braking means when the spool is rotated in one direction, but disconnects the spool from its braking posite direction and similarly the roller is automatically ponnected to drive its braking means when said roller .is rotated in one direction, but disconnected therefrom when said roller is rotated in the opposite direction. For this purpose, we preferably employ the devices which We will now proceed to describe and which form the main feature of our invention. a

39 is a pawl ivotally mounted upon a collar 40 secur to the shaft 10 and provided with a recess 41 in which said pawl is located, said pawl being irranged to .cooperate with a ratchet cons Jti'ng ot' a series gages with its ratchet todrive the same when the'pawl is above the shaftTlO and when once engagedwith one of pinsi42 flde'ntal disengagement from the pin' by"the i aerate the end of the pawl is beveled,

sliown,"so that when in driving engagement and located below the shaft it will be under stood that it will remain engaged as long as the power is applied to rotate the collar 40 upon which the pawl is mounted. As stated, the pawl is pre erably gravity-operated 311 order that when the reversal of direction means when said spool is rotated in the opof pins 42 projecting from the face of the of motion of the music sheet takes place a short period of time shall elapse before the brake drum 29 starts to rotate.

A pawl 43 is pivoted on a collar 44 se' cured to the shaft 11 and located in a recess 45 provided in said collar and into this recess a series of pins 46 project, said pins constituting a ratchet with which said pawl cooperates so that when the take-up roll 6 is rotated in one direction, the brake drum 31 will be locked thereto and travel in unison therewith, but upon a reversal of movement of the music sheet the pawl will simply' travel idly over its ratchet, and the. brake' drum 31 will remain stationary. I Preferably, the pawl 43 is provided wit-h a long weighted arm 47 constitut-in a means actuated by centrifugal force to t row said pawl into engagement with its ratchet as soon as the take-up roller has started torotate in the proper direction. Except for this difl'erencein the operation of the pawls, the braking means for the music spool' and the take-up roller operate in substantially the I same manner. 90

It will be understood from the foregoing that the braking means for the music spool 5 and the braking means for the take-up roller 6 become etlect-iveonly upon the rota tion of their respective brake drums throng; the medium of their pawls and ratchets it accordingly the tensioning of the music sheet is accomplished without the use of any pneumatics or other devices for throwing the brake shoes into and out of contact will: their respective brake drums, as has heretofore been the case.

While it is desirable to provide bra means for the take-up roller ti, it is sential, and in many cases it is poss dispense entirely with the braking me for the take-up roller and to equip only music spool'with a braking means operating as hereinbefore described. The rea for this is that when the instrument is be g played the music leads off of the music spcoi and, of course, needs to be properly ten sioned, whereas in rerolling the music sheet it is not essential that the sheet shall be tensioned; v

' Having thus described our invention, what we claim and desire by Letters Patent to secure is: i

1. A music sheet winding and rewi'nding mechanism having, in combination, a music spool, a take-up roller, mechanism for drivby said mechanism to wind the music slzcci ofi of said roller onto said spool, and means to automatically connect said roller to dIlVB I its said braking means when said roller is mechanism having, in combination, a music spool, a take-up roller, mechanism for driving either said spool or said roller, braking means for said spool including a. drum-and a frictional device constantly acting thereon, braking means for said roller including a drum and a frictional device constantly act- ,ing thereon, means to automaticallyponnect said spool to rotate its said drum when'said' spool is rotated in one direction, but disconnect said spool from its drum when'said spool is rotated in the opposite direction, and means to automatically connect said roller to its said drum when said roller is rotated in one direction, but disconnect said roller from its drum when said roller is ro tated in the opposite direction.

3. A music sheet winding and rewinding mechanism having, in combination, a music spool, a take-up roller, mechanism for driv-- ing either said spool or said roller, braking means for said spool including a rotatable member, braking means for said roller including a rotatable member, means connectin said spool to its said member permitting r ative rotation of said spool and its memher in one direction, but locking said spool and its member against relative rotation in the opposite direction, and means connccting said roller to its said member permitting relative rotation of said roller and its incur her in one direction, but locking said roller and its member against relative rotation in the opposite direction.

A music sheet winding and rewiuding mechanism having in combination, a musicv spool. a take-up roller, mechanism for dri\'- ing either said spool or said roller, braking means for said spool including a drum and a frictional device constantly acting thereon, and means to automatically connect said spool to rotate said drum when said spool is rotated in one direction, but disconnect said spool from said drum when said spool is rotated in the opposite direction.

5. A music sheet winding and rewinding mechanism having, in combination, a music spool, a take-up roller, mechanism for driving either said spool or said roller, braking means for said spool including a rotatable member, braking means for said roller including a rotatable member, a gravity actuated pawl andcotiperating ratchet connecting said spool to its said. member, and a centrifugally actuated pawl and co6perat ing ratchet connecting said roller to its said mg'either said spool or said roller, braking means for said spool including a brake drum and a brake shoe acting thereon, brak ing means for said roller including a brake-- drum and brake-shoe acting thereon, means yieldingly holding said brake-shoes in engagement with their respective brake-drums, a pawl and ratchet forming an operative connection between said spool and its said brake-drum, and a pawl and ratchet forming an operative connection between said roller and its said brake-drum, one of said ratchets with its cooperating pawl being reverse to the other.

7. A music sheet winding and rewinding mechanism having, in combination, a music spool, a take-up roller, mechanism for driving either said spool or said roller, braking means for said spool including a brake drum and a brake shoe acting thereon, braking means for said roller including a brakedrum and brakeshoe acting thereon, 'a spring connecting said brake-shoes to each other and urging them into engagement with theirrespective brake-drums, a pawl and ratchet forming an operative connection between said spool and its sai'd brakedrum, and a pawl and ratchet forming an operative connection between said roller and its said brake-drum, one of said ratchets with its cooperating pawl being reverse to the other. 7

8. A music sheet winding and rewinding mechanism having, in combination, a music spool, a take-up roller, mechanism for driving either said spool or said roller, braking means for said spool, and means to automatically connect said spool to drive said braking means when said spool is rotated by the music sheet in being wound off of said spool onto said roller, but disconnect said spool from said braking means when said spool is rotated by said mechanism to wind the music sheet off of said roller onto said spool.

9. A music sheet winding and rewinding' mechanism having, in combination, a music spool, a take-up roller, mechanism for driving either said spool or said roller, braking means for said spool including a drum and a frictional device constantly acting there- 10 said roller, but locking 15 mechanism having, .in combination, a music spool, a take-up roller, mechanism for drivin'g'either said spool or said roller, braking means for said spool including a rotatable witnesses.

GUSTAF WM. PAULSON. RUDOLF PAULSON. \Vitnesses:

Lows A. Jones, J AMES H. LINDSAY.

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

- I Washington, D. G.