US1623565A - Music stand - Google Patents

Description

April 5; 1927. 1,623,565

E. THIMGREN MUSIC STAND Filed June 30. 1925 2 Sheets-Sheet 1 14 Galw E. THIMGREN MUSIC STAND Filed June 30. 1925 2 Sheets-Sheet 2 Has.

April 5 1921, 1,623,565

Patented Apr. 5, 1927.

UNITED STATES 1,623,565 PATENT OFFICE.

EDWARD THIMGREN, F POPO'ILA, MEXICO.

MUSIC STAND.

Application filed June 30, 1925. Serial No. 40,574.

. This invention relates to new and useful improvements in music stands.

The primary object of the invention isto provide a music stand of the type for han dling awebhaving music characters printed thereon. A further object of the invention is the provision of means for manually feeding the music web from the carrier roll to a V temporary receiving roll in desired steps or In theaccompany ng drawings formin a part of this specification and in which like.

numerals are employed to designate like parts throughout the same,

Figure 1 is a perspective of the entire music stand embodying thisinvention,

Figure 2 is a vertical sectional View 30 throughthe left hand upright of the frame of the music stand'shown in Figure 1,

Figure 3 is a similar View of the right hand upright of the stand, and

Figure 4: is a fragmentary vertical sec tional view of a portion of the mechanism shown in Figure 1.

In the drawings, wherein for the purpose of illustration is shown the preferred embodiment of this invention, the numeral 5 designates in its entirety the frame portion of the, music stand which includes a left hand upright 6 of hollow formation having a laterally extending hollow arm 7 and a hollow basepo-rtion 8, and a right hand upright 6 having a laterally extending arm 7 arranged in parallelism with the arm 7 and a hollow base portion 8. The base portions 8 and 8 are connectedby a bottom wall 9 and front-and rear cross pieces 10 and 11, respectively. The upper ends of the uprights 6 and 6" are connected by a cross piece 12.

Journaled in the outer end portions of the lateral arms 7 and 7 1s a'music web carrier roll 13- which is intended to be removably connect-ed to said arms in any deslred manner, no specific connecting 'means being shown inview of the fact that such a feature of construction is not intended to form a spec fic part of the invention as claimed. A temporary receiving roll 14 is journaled 1n the upper end portions of the uprights 6 and 6' below the upper cross piece 12. Car

ried by the carrier roll 13 is a web of paper or the like 15 intended to have printed thereon suitable music characters, not shown.

J ournaled in the front end portions of the base par- ts 8 and 8 is a shaft-16 which has loosely mounted thereon the treadle 17 havmg connected toits inner end the arm 18 which is pivotally connected to the link 19.

The free end of the link 19 is pivotally connected to the lever 20 which is pivotally supported at one end by the rock arm 21 and has the pin 22 connected to its remaining end. In Figure 3 the interior of the hollow right hand frame structure is shown and includes the upright 6, the lateral arm 7' and the base 8,. A centrally pivoted lever 23 is shown as being mounted within the lower portion of the base 8 and hasits upper end pivotally connected to the pin 22. The remaining end is connected to a block like structure 24c which has fastened thereto a perpendicular rod 25 slidably supported and guided by the brackets 26. The lower end of the rod 25 may have threadedengagement with the block 24 or may be secured thereto in any preferred manner. This rod 25 extends upwardly beyond the lateral arm 7 and has mounted on its upper endthe l.- shaped rack 27 which has the teeth 28 formed on the inner longitudinal edge of the perpendicular portion of theL. The teeth 28 of this L-shaped rack 27 are intended to engage the teeth of the pinion 29 which is intended to be loosely mounted upon theends of the temporary receiving roll 14:. This roll is intended to have a ratchet wheel 30 fastened thereto immediately inwardly of the pinion 29. The teeth of the ratchet wheel 30 are intended to be engaged by the pawl 31 carried by the pinion 29. A compression spring 32 encircles the rod 25 between the two lowest brackets 26 for engaging the intermediate bracket at one end and the stop collar 33, faeitened to the saidrod 25, at its opposite en It. will now be understood that by depressing treadle 17 the arm 18, links 19, and lever 20 with its pin 22, will cause the lever23 to pivot upon its fulcrum 23 for moving fill upwardly the block like element 24. The pin 22, during its downward movement,will travel through the arcuate slot 34 formed in the base portion 8. This upwarclniovement of the block like element 24 will cause the rod 25 to move longitudinally upwardly for placing the rack teeth 28 in engagement with the teeth of the pinion 29. This pinion will travel in a clockwise direction, as viewed in Figure 3, and the pawl 31 carried bythe same will engage'the teeth of the ratchet wheel for causing the temporary receiving roll 14 to rotate for winding the music web 15 the 'eupon. It will now be seen that the mechanism just described will permit the user of this music stand to unwindthe music web from the carrier roll 13 ontothe receiving roll 14as desired.

This rotation ofthe carrier roll 18 to unwind the music web 15 therefrom will cause the pinion 35, shown in the hollowed out portion of the arm 7, to rotate in a counterclockwise direction, as viewed in Figure 2, in view of the fact that this pinion 35 is mounted upon the left hand end of the support for the carrier roll 13. This counterclockwise'rotation of the pinion 35 will cause the idle pinion 36 to rotate in a. clockwise direction and due to its engagement with the teeth 37 formed on one side of the spool 38, this spool will be caused to rotate in a counter-clockwise direction for winding the cord 39 which is fastened at 40 to the spool 38, thereupon. This cord 39 extendsvertically within the upright 6 and travels over a spool 41 located at the upper end of the-said upright. The free depending end of the cord 39 has fastened thereto asash weight 42 which is capable of moving in a vertical path through the bore of the upright 6.

In Figures 2 and 4 the left hand end of the temporary receiving roll 14 is illustrated as having mounted thereon the 'double disk, spool like member 43 whichis arranged with the peripheries of the disks juxtaposed to the inner face of the front edge of the upright 6. Movable longitudinally upwardly through the upright 6 is av rod 44 which has its upper end bent laterally at right angles, as best shown at 45 in Figure 4. This laterally extending end portion 45 projects through a slot 46 formed in the upright 6 and is guided thereby. It will be seen that this lateral end portion 46 is capable of wedging itself between the peripheries of the 'disks of the spool like structure 43' and the inner face of the'front edge of the upright 6 when permitted to travel downwardly due to gravity. The lower end of this rod 47 has a laterally extendingportion 47 which rests upon the arm 48 of the lever '49. The remaining end 50 of this lever 49 has fastened thereto the reversely bent finger 51 which projects through the slot 52 and supports the free end 53 of the treadle 54 which wind the music web 15 thereupon.

is loosely mounted upon the shaft 16. The arm 48 of the lever 49 has connected thereto the tension spring which functions to pull downwardly on this arm of the lever for permitting the rod 44 to move downwardly T its limit of movement in that direction and,

laterally projecting end portion 45 of the rod 41 wedging itself between the periphcries of the disks of the spool like structure 43 and the inner face of the front edge of the upriglit'o. This rod 44, therefore, acts as a brake. \Vheii the operator of the music stand desires to rewind the web 15 upon the carrier roll 13, the treadle 54 is depressed for causing the lever 49 to pivot in a proper direction to elevate the rod 44. This braking action in respect to the spool like structure 43 and the temporary receiving roll 14 is thereby removed and the weight 42 is permitted to drop which will cause the cord 39 to actuate the spool 38 and the pinions 36 and 35 for rotating the carrier roll 13 in the proper direction to By removing the pressure applied to the treadle 04, the brake rod 44 will immediately function-to prevent unwinding of the roll 14 and the rewinding of the web will instantly stop. It 1510 be understood that the form of this invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described the invention. I claim:

1. In a music stand of the type described, a music web carrier roll, a temporary web receiving roll joui'naled parallel thereto, a pinion loosely carried by the receiving roll, a'pawl carried by the pinion, a ratchet wheel fastened to the receiving roll, a rack adapted to engage-said pinion for rotating the receiving roll to wind the music web onto the latter roll, treadle means for actuating said rack, a spooljournalled adjacent the carrier roll, gear connections between the spool and carrier roll, a pulley at the upper end of the stand, a cord fastened to the spool and passing over the pulley, a weight at the end of the cord with the cord wound on the spool when the music web passes from the carrier roll to'the receiving roll to raise the weight, and a treadle associated with the receiving roll for causing lowering movement of the weight and reverse rotation of the carrier and receiving rolls to rewind the music Webon the carrier roll.

2. In a music stand of the type described, a music web carrier'roll, atemporary Web receiving roll journaled parallel thereto, a

' pinion loosely carried by the receiving roll,

a pawl carried by the pinion, a ratchet wheel ing roll to wind the music web onto the latter roll, treadle means for actuating said rack, a spool journalled adjacent the carrier roll, gear connections between the spool and carrier roll, a pulley at the upper end of the stand, a cord fastened to the spool and passing over the pulley, a weight at the end of the cord with the cord wound on the spool when the music web passes from the carrier roll to the receiving roll to raise the weight, and a treadle associated with the receiving roll for causing lowering movement of the weight and reverse rotation of the carrier and receiving rolls to rewind the music web on the carrier roll.

In testimony whereof I afiix my signature.

EDWARD THIMGREN.

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