US1169144A - Music-leaf turner. - Google Patents

Description

A. GASPERETH & C. DALBONI.

MUSIC LEAF TURNER. APPLICATION mm D.EC.!4,;..|914.

v v i6 9 144 Patented Jan. 25,1916.

2 SHEETS-SHEET I.

TIIB COLUMBIA PLArjodmH cm. WASHINGTON, D. C.

A. GASPERETT! & C. DALBONI.

MUSIC LEAF TURNER. APPLICATIQNFILED use. 4. 1914.

1,169,144. Patented Jan. 25, 1916.

2 SHEETS-SHEET 2.

THE COLUMBIA PLANOGIAPH CO" WASHINGTON. D. C-

UNITED, STATES PATENT .oF-ruon.

AN' vIBALE GAS'PE'RETTI AND CARL-0 nnmaonror NEW YORK, 1:. Y. Y

MUSIC-LEAF TURNER;

To all whom itmay concern GARLO-DALBONI, a subject of the" King of Italy, .residing at New York, borough of Specification'of Let ters Patent.

Manhattan, in the'countyand State of Now which the following is a' specification.

Our invention relates to improvements-in devices for: turning sheet music, especially in the form of books consisting of a number of leaves bound together with or without covers; and in its preferred embodiment; it comprlses suitable mechamsmf'or engags ing the sheets or leaves, operable at will to turn the sheetsin'succession till theend of the musical;-composition*uponrthe face 1 of the sheets is reached.

The primary object of our' invention is to. rovide a device ofthe kind mentioned,

which will afford positive and certain en gagement of the mechanismlwith'? the sheets;

so that'thesheets cani be turned over one after anotheruin "a manner that is both quick and infallible; l

The above and other objects and advantages of our invention will appear from the following description taken in connection "ward, the sheets: of music 3. The central with the accompanying drawings,ywhich show a preferred form of our invention; the

same characters of reference beingwusedto indicate the same partsthro'ughout the several views.

On said drawings Figure l isan'elevation showing our invention attached to a stand for supporting sheet music "commonly used by violini'sts. -Fig.:2is a front elevation of comprising our invention in one position. F 1g. 7 1s a view similar to F1g. 6, showing the same-parts in the position they occupy: at the-end of the sheet turning operation? and F 1g.8.1s a perspective view of a detail,

illustrating themann'er in which the mech-1 anism we employ takes hold of the sheets of music to turn them over.

In the particular description of theidraw- 1ngs,-we use'the numeral Ito indicatea stand for supporting music of the kind com- Patented Jan. 25, 1916.

Application filed December ,4, 1914. Serial No.8-75,457.

, 5 monlyused by violinists. *Thiszstand coms Be it known that We, fhNNIBALE GASPE-y RETT'I, a citizenof the United States, and.

prlses a post consistingof anumber of tubuother andi are extensible-so that-the stand carriesiat its top amusic rest 2- and has legs y can be collapsed to .be packed-in the musi- 'cians-case or setup at will This stand York, have invented certain new and useful Y Improvements in 'Music-Leaf Turners,v of

at the bottom -which can be folded up against. the lowermost section in the usual way. When-the standis being used,-the

.variousparts are held in fixed relationwith each otherby means screws.

Further description of the, standis not plainly shown in Fig. 1 and welllmown to those skilledin the art. I Furthermore various kinds of stands may be used in connection withour. invention and the oneshown of suitable binding on the, drawings is intended merely as a con I ventlonal illllSLIittlOIltO show onemethod of applying our invention. Obviously, our music turnin'gdevice may be employed in combination with the music rest-of a piano or anyother instrument; The rest 2 may also. be of any suitable-type, consisting of parts rigid-with eachother; or adapted to -be-folded-together', so as to carry in convenient position, inclining slightly backmemberof therest is shown at 4, andit may thereof two angleabarsfi, forminga shelf to engage thebottom-edgesof the sheets 3.

-Each of 'thesheets 3 will have on the" face ,thereof, which is the uppenface, when the sheetisturned *OVel' 'tO the rightaof the central frame member 4; an 'engageable body inthe-form'of a flap-6 having a pointed end7- and? an opening:: 8.. Thesew flaps may be made of 'eelluloid parchment; paper. or' any; other suitable :material, and are preferably have 1 pivotally connected to the:- bottom;

.;attachedf.=by'pasting-them along their upper edges-to the sheets 3 near the lower corners of thesheets, in such-position that the points 7 will extend towardwthe inner: or bound .edgesuof the sheets: These flaps arefree' alongalhthe edges except the'upper edges,- and-Pas they are made of thing, but: somewhat stiff material, they will not appreciably increase thethickness of the sheets to which they are attached. 'When the bookof mu- 7 sic isclosed; the flaps will be-pressed tightly agai'nst faces of the sheets; but.whenthe book is openedythe :pointed end -7 will extend away from the faces of the sheets to a slight 70 believed to be necessary, as the parts are' extent; being bent so as to give'it a suiiicient permanent set for this purpose. In order to turn the sheets, the flaps are engaged by suitable means carried by a pivot arm 9, which revolves in a plane substantially normal to the rest 2, as we shall now set forth.

To the uper end of the uppermost tubular section of the stand 1, we attach a sleeve 10 in which is received the lower end of a bent shank 11. The upper end of the shank passes into a socket formed by a plate 12, secured to the back of an angle plate 13. This angle plate supports the music rest 2 and the back thereof may have a groove 14: to receive the lower end of the frame member at. The back of this angle plate 13 may also be slotted at the middle of the groove 14 and the bottom of the frame member 4: may have a bolt extending therefrom to pass into the slot and be engaged by a binding nut to secure the member 1 and the angle plate 13 together. This bolt and binding nut are shown at 15, and it will be seen that when the rest 2- is secured to the angle plate, that the back and bottom of this angle plate will be substantially parallel to the back and bottom respectively of the angle bars To the lower side of the bottom or front portion of the angle plate 13, we secure a casing 16, providing a bearing for a spindle 17. This spindle also passes through the angle plate 13, and is encircled by means of a coil spring 18, secured thereto into the inside'casing 16. The spindle 17 also carries inside the casing 16 and rigid thereon a drum 19, which has fixed thereto one end of an operating cord or chain 20. This cord or chain 20 passes through an opening in the casing 16 and over a grooved guide wheel 21, carried by the sleeve 10, into the tubular sections making up the post of the stand 1. The pulley 21 is suitably jo-urnaled in projections carried by the sleeve 10, and both this sleeve and the lower end of the bent shank 11 will be shaped so as to give free passage to the cord or chain 20, as clearly shown in Fig. 5. The upper end of the spindle 17 carries above the front portion of the angle plate 13 a head 22. This head 22 has a pair of lugs 23, between which is pivotally mounted a short arm 24. This arm has a collar thereon at its outer end, inclicated at 25, and the outer face of this collar carries a boss which fits into an aperture in an end of the arm 9, above mentioned; a binding screw 26 being used to secure the arm 9 and short arm 21 to ether. This arm 9 carries a pivoted lever 2 mounted thereon, adjacent the screw 26, and carrying at its outer extremity an upturned pin 28. Preferably the arm 27 is provided with ears at its pivoted end, which receive the arm 9 between them; (see Figs. 2 and 5); and the arm 9 may be recessed around the pivot pm to receive a 0011 spring shown at 27 1n F1 g.

41, which normally tends to force the lever 27 and arm 9 apart.

At its outer end, the lever 27 is bent forward adjacent the pin 28, forming a lateral extension 29, upon which is pivotally mounteda locking dog 30. As shown in Fig. 8, this locking dog 30 has a curved apertured end 31, and the opposite end is heavier than the end 31, so that normally this dog will be in vertical position. The adjacent end of the arm 9 carries a projection or finger 32 on the top thereof, located above the level of the pivot of the locking dog 30, and extending beyond the end of the arm 9, which arm will terminate short of the dog 30 when the arm and lever are forced together, as will be presently set forth. Consequently, when the arm and lever come together, as shown in Figs. 2 and 3, the finger 32 will strike the up-curved end 31 of the dog and throw it into substantially horizontal position.

The outer end of the extension 29 of the lever 27 is bent parallel to the lever 27 toward the pivot thereof to provide a projection 33, adapted to be engaged by a locking bolt 31, slidably mounted in a bore in the outer end of the arm 9. This bolt 31 is normally forced outward by a spring at the inner end of the bore, as shown in Fig. i, and it has a pin 35 projecting through a slot 36 at the top of the arm 9, to limit the outward movement. Hence, when the lever 27 and arm 9 are forced together, they will be locked against the compression of the spring 27, and will remain locked until released.

In the practice of our invention, the arm 9 and lever 27 come together when the head 22 revolves to the right, referring to Figs. 2, 3 and 4, and are unlocked when they revolve in the opposite direction. For this purpose,

we provide the angle bar 5 at the left with a projection 37 in position to engage the pin 35 when the arm and lever swing over to the left, and force the pin toward the inner end of the arm 9; whereby the bolt 34 will be drawn and the lever 27 released. Of course, the slot in the groove 14 in the back of the angle plate 13 which receives the locking bolt 15 terminates at such a point that these angle bars will be spaced a sufiicient distance from .the bottom portion of the angle plate 13 to allow the arm 9 and lever 27 to move below them, and we provide the two angle bars 5 with recesses 5 to avoid interfering with the pin 28, dog 30, and pin .35 when the arm and lever are in either extreme position. The lever 27 is provided with an upstanding lug 38 offset laterally of the lever and located so as to be struck by quickly enough when the lever 27 is released.

plate than the spindle 17 had particularly toFigs l, Gand 7.:,Adja-.-

angle plate, we pivot Referring again tothe short arm 24,:it

will be seen by referringto Figs. 1 and .6' that we provide the head25 with a projection 39 this projection extending toward the head 22 and being below the body of the arm 24 soasto provide a: space or recess;

The arm24 being pivoted tothe head 22 :sO as to swing up and ,down in a vertical plane; it willbe seen that the projection 29Hwi1l limit downward movement of the short varm.

24cby engagingfront or bottom portion of the angle plate 13. Weniount-onthe front portionof this angle plate a curved strip 40 which provides a circular track for the pro- 1 jection 39, and this track 40 extends from right to left and terminates at the left in a; beveled end,.located aslightly greater 'distance' from the back portion of the angle reference being surface of the track a slight distance past-the beveledend; the front edgeof this projection being also beveled andtherear edge being abrupt.

As shown in Fig. .4, the bridge piece 41 is locatedinward-of the edge of the front portion ofthe angle-plate 13,

whereby a drop-is provided for the projection 39 beyond the lateral projection 42 and the relative thickness of the track bridge piece 11 and projection .39 is such that when the projection 39 passes beyond the projection 42 anddrops off the same, the top of the projection 39 :will be below ;the.pro-- jection 4:2, as shown plainly in ,Figs. 6. and 7. The bridge piece 41 is pivoted'to the plate 13 by means of perforated lugs and a spring head encircling the ,..pivot pin is shown. in Fig. 4: to-holdthebridge piece down.

To the back we pivot a curved resilient finger 43, which is engaged by front portion of the angle plate so as to hold the finger downward-against the'front portionof the angle plateobetween the lateralprojection 42 of the "bridge piece 41 and the upon the leaves 3 and. prevent them from being blown over without. interfering with the operat1on of our invention. The function and utility of our improvementwill now be plain. Normally, the spring 18 rotates. the shaft 17 to throw thearm 19 'andalesg behindthe pointed end of the curved trackpiecej40s piece 40, 1

, ver together portion of the angle: plate. 13,

3, by means of fiap 18 to movethe arm and lever to the left and turn the sheets.

Suppose, for. example, the parts be considered with reference to their position I shown ,in:'-Fig.;&; the;lever 27 being urged at its ve'r27' to the right, anda pull on the cord 20 will rotate thepshaft 17 againstthespr ng outer. end away from .theibar 9 by the spring the movingapart of the arm and lever more certain; The lever 27 will therefore cause the pin 28 to come into contact with the sheet 3 to be turned, at a point inward of tllGFflEtP 6; the PlI1128 entering the recess 5 in the right hand angle bar 5 far enough-to tion of the :arm 9;to the right forces pin 28 7 of the flap 6; and the outer ends of the begin to move toward each other. When the ,pin*28-reaches the aperture 8, the finger 32 on the arm .9 strikes the curved end 31 of the locking dog 30 and throws it toward thesheet 3. As a result, the opening in the end 31 of thedogreceives the upper end of the pin 28 and. completes the locking engagement of the dog and pin with the flap 6. Simultaneously, the .bolt 84. passes behind the projection 33and locks the arm and le- The pin. 28 will always pass behind the flap '6, because it naturally presses against the sheet or leaf'to be turned as it slides along the face of the same towarduthis flapythis condition being clearly indicatedin Fig. 4. By making theends 7 of the-:flap pointed, the passing of the pin 28 behind the=fiap canbe rendered certain -1n every. case; because this pointedend will prefer to curve the pointed ends 7 of'the a spring {141, securedto the flapsoutward by working them with the fingers; so as to give them a slight permanent These ends will,-

I to whichtherbook is closed; but as fast as backof the angle plate, as shown in Fig.6.

This finger 43 is lifted by the short arm 24,

each flapiisuncovered by turning a sheet the polntedend '7 will assume the necessary out- I ward. extending position to obviate every possibility'of the turning device failing to engage 'the.-sheet in the proper manner.

This much of the operation is effected by the spring 18." The cord or chain 20 is now pulled, rotating the The arm 9 and lever 27 now pull the sheet 6, out from under the clamp 45 and turn itover.

and lever have revolved far enough to the spindle 17 to the left. 1

When the arm arm and levernow left to occupy the position shown in broken lines. in-Fig; 3, theprojection 37 will push 85 permit this action."Thecontinued revoluback the pin 35 to release the lever 27, and the projection 37 will then engage the lug 38 to cooperate with the spring 27 to separate the arm and lever. As soon as this hap- I pens, the finger 32 having moved away from the locking dog 30, the heavier end of the locking dog opposite the curved end 81 drops; thus disengaging the upper end of the pin 28. About this time also, the pro jection 89 passes beyond the inner edge of the projection 42 of the bridge piece 11; whereby the weight of the arm and lever will cause these two parts to revolve the short arm 24: around its pivotal connection with the head 22, downward far enough to enable the pin 28 to be withdrawn behind the flap 6, and thus release the same. The completion of the turning operation is effected by the top of the short arm 24: engaging the bottom of the curved finger 413, and raising it against the tension of the spring 14, as shown in Fig. 7 to engage the reverse side of the sheet 3 near its bound edge and force it down fiat against the cover or sheets that have been turned before it. The upper face of the arm 2% may be beveled for this purpose. The cord or chain 20 is now released and the spring 18 moves the arm 9 and lever 27 to the right again. In returning, the projection 39 passes under the lateral projection 42 of the bridge piece 41; riding easily upward over the beveled end of the track piece 10 to the top of the same, and the operation can be repeated.

e prefer to lead the cord or chain 20 down through the tubular sections, making the post of the stand 1, and actuate the same by means of a pedal at the bottom of the stand so as to leave the hands of the musician entirely free. The actuating device in question is shown in Fig. 1, and it is in the form of a bellows comprising a pair of heads 46 connected by a web of sheet rubber or leather l7. On the top of the upper head 46 is a plate 18, secured to the head at its ends, but spaced from the head between the ends. The pressure of the foot on this plate will collapse the bellows, as will be readily understood. The head 16 is perforated below the plate 48, and an ordinary flap valve of cloth or any other suitable material may be secured to the head and located between the same and the plate 48, to cover the perforations; these perforations permitting air to pass into and out of the bellows. The flap valve is indicated by the numeral 49.

To the heads 46 we pivot two pairs of links 50; the links of each pair being pivotally connected together, thus providing a double toggle point. To the pivot ends of one pair of links, namely the pair shown at the right, we secure one end of a flexible, tubular casing 51 for the operating cord or chain, and to the pivot ends of the pair of links at the left, we secure a boss having an aperture to receive a bolt through which the end of the cord or chain 20 is adapted to be fastened. This bolt will carry an adj usting nut 52. It will now be seen that when the musician presses downward with his foot on the plate 418, the links 50 will cause a pull to be exerted on the end of the cord 20 to throw the arm 9 and lever 27 to the left. At this time, the flap a9 lifts and allows the air in the bellows to escape. hen, however, the musician moves his foot from the plate 48, thus releasing the bel lows, the spring 18 can move the arm and lever to the right. When this action takes place, however, the spring pulls the cord in the other direction, and the cord then actuates the links 50 to distend heads d6 and to restore the bellows to operative position. The flap valve 49 now tends to close, and a partial vacuumj'thus results inside the bellows. The flap 4:9 is not perfectly air tight and restricts the inflow of air just'enough to prevent the heads l6 from distending too rapidly. Hence, the bellows will act as a sort of cushion to retard the action of the spring 18 and prevent the spring from throwing over the arm 9 and lever 27 to the right too suddenly. Thereby the danger of parts becoming damaged is greatly reduced.

\Ve wish to have it understood that the above disclosure is illustrative only, and we reserve the right to make such changes in the shape, size and arrangement of the parts as fairly fall within the scope and spirit of the appended claims.

Having described our invention, what we believe to be new and desire to protect by Letters Patent of the United States is:

1. In a device of the kind described, the combination of a body secured to a sheet to be turned, and having a portion free to move with respect to the sheet, a member adapted to be first passed behind the body, and means movable with reference to said member after said member passes behind the body, to cooperate with said member in the engagement of the body, whereby the body can be actuated to turn the sheet.

2. A turning device for sheets of music, comprising an arm movable on a pivot at one end thereof, a lever pivoted on the arm remote from the said end, means for revolving the arm and the lever bodily around the pivot of said arm, means for locking the arm and lever to each other, engaging means carried by the device and actuated to move into operative position with respect to a sheet of music when the arm and the lever come together, means for then revolving the arm and the lever in the opposite direction to turn the sheet, and means for unlocking the arm and the lever from each other and releasing the sheet when the turning has been effected. V

3. In a device of the kind described, the

combination of a music rest, a rotatable head carried by a plate supporting the rest, a short arm connected to the head by a pivot parallel to the plate, an arm connected to thefirst arm, a lever pivoted to the second arm intermediate the ends of the latter, an upstanding pin and a perforated locking dog on the outer end of the lever, a finger on the second arm to actuate the dog, a bolt for locking the second arm and lever together, means on the rest for releasing the second arm and lever, a track piece having a sloping end on the plate to support the first arm, a bridge piece providing a drop for the second arm at the end of the track 15 piece, and a finger actuated by the first arm, located adjacent the track piece.

In testimony whereof, We have signed our names to this specification in the presence of two subscribing Witnesses, this 21st day of 20 November 1914.

ANNIBALE GASPERETTI. CARLO DALBON I. Witnesses:

WILLIAM F. NICKEL, H. BIRNBAOH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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