US1512708A

US1512708A - Music-leaf turner

Info

Publication number: US1512708A
Application number: US578431A
Authority: US
Inventors: Peltola Toivo
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-07-29
Filing date: 1922-07-29
Publication date: 1924-10-21
Anticipated expiration: 1941-10-21

Description

Oct. 21 1924.

1,512,708 T. PELTOLYA MUSIC LEAF TURNER Filed July 29, 1922 3 Shadi-Sheet l ,di `-z5. 26 1"' L 35 Z4 P12/v? 2.9 v 2.5 y' f' ,13 11 JZ 1l J5 14-0 e L14 1P f +50 J5 i: 10 W/z I? J2 1l 44, 14-@ E I @14, DHL) J3 1112,:13 1g 1,3 4bL`J o l o' 2F14' Z7 2a 7 flg'' Z9 Il" Z4 jt 25 1L 11 1t :i

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Oct.' 2i 1924. 1,512',7os T. PELTQLA K I MUSIC LEAF TURNER Filed July 29, 1922 s sheets-sheet 2 T0 Z220 IWENTOR.

A TTORNEY.

Oct. 2l. 1924.

a 1,512,708 T. PELTOLA MUSIC LEAF TURNER mle'd July 29, 1922 s sheets-sheet,

INVENTOR Patented Oct. 21, 1924.

UNITED STATES TOIVO PELTOLA, 0F MARQUETTE, MICHIGAN.

MUSIC-LEAF TURNER.

Application filed July 29, 1922.

To all lwhom t may concern:

Be it known that I, Torvo PELToLA, a citizen of the United States, residing at Marquette, in the county of Marquette and State of Michigan, have invented certain new and useful Improvements in Music-Leaf Turners, of which the following is a specification.

This invention relates to music leaf turners, and has for one of its objects to improve the construction and increase the eiiiciency and utility of devices of this character.

VAnother object of the invention is to provide a device of this character which may be supported by a foldable standard of the usual construction, or upon the usual music rack of a piano, organ, or like instrument, without material structural change.

With these and other objects in view the invention consists in certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claim, and in the drawings illustrative of the preferred embodiment of the inventionz- Y Figure 1 is an elevation of the improved device supported by a conventional foldable music stand, for use by individual performers in a band or orchestra.

Fig. 2 is a side elevation of the upper part of thestructure shown in Fig. 1.

F ig.- 3 is a rear elevation of the upper portion of the structure shown in Figs. 1 and 2, illustrating the manner of operating the leaf turning arms.

Figs. 4 and 5 are enlarged detail views of the adjustable magnet device for seizing the leaves for turning.

Fig. 6 is a view similar to the upper part of Fig. 1, illustrating the manner of supportingthe backs of the music sheets and the intermediate leaves upon thesupporting structure.

Fig. 7 is a section on the line 7-7 of Fig. 6.

Fig. 8 is an enlarged detail of the turning rod mechanism.

Fig. 9 is an end View of the parts shown in Fig. 8.

Fig. 10 is a view, on a reduced scale, ofa music leaf, showing it arranged for use on the improved device.

Fig. 11 is an end view of Fig. lO.

Fig. 12 is a view on a reduced scale, of a conventional sheet of music, including the serial No. 578,431.

back, the front or cover, and the intermediate loose leaf.

Fig. 13 is a view, on a reduced scale, of a detachable sheet of music usually employed by bands or orchestras.

Fig. 14 is a view of one of the Contact plates which is to be attached to the music sheets to be engaged by the magnets.

Fig. 15 is a view of the improved device arranged upon the ordinary music rack or upper panel of a piano.

Fig. 16 is a section on the line 16-16 of Fig. 15.

When arranged for use upon a foldable standard as shown in Figs. 1, 2 and 6, the improved device includes a central frame member 1() to which a plurality of bars 11 are pivoted at 12 at their inner ends.

Slidable upon each of the bars 11 is a slotted extension bar 13, and pivotally coupled at 14 to the outer ends of the extension bars are other bars 15, the pivotally coupled bars permitting the folding of the device into small space when not in use, and the slotted extension permitting adjustment to adapt the device to sheets of various sizes.

Attached to the central frame member 10 is a bracket 16 to which a supporting rod 17 is rigidly coupled.

The improved device may be supported by a foldable stand of the usual construction and comprising

telescoping members

18 and 19, pivoted foldable legs 20 and pivoted foldable braces 21, the

members

18 and 19 being provided with clamp screws 22 to enable the stand to be held in adjusted position or folded into small space, when not in use, as will be obvious.

Attached to the upper end of the member 10 is a small casing 23 in which a bell crank lever device 24 is pivoted at 25. One arm of the member 24 is extended into a toothed segment 26 engaging a gear pinion 27 on a rod 28, the latter supported for rotation relative to the member 10.

Connected to one arm of the bell crank member 24 is a pull wire 29, and coupled to the lower end of the pull wire is a coupling strip 30, and coupled to the lower end of the stri is a pull chain 31.

. Suita ly supported on the floor, indicated at 32, is a pedal member 33 to which the lower end of the chain 31 is attached, as shown in Fig. 1.

A SpringV 34 surrounds the rod-28, preferor more sheets to be turned, one of the `ably Within the :casing 23, land is attached' at one end to the casing and at the other end to the rod, and exerts its' force to hold the rod yieldably in one psiti'on, and to return it to its first position when released. The rod 28 extends `above the lines of the casing 23 and beloW the line of the lower members 11 and carries vleaf turning arms I36u-at 'the extended ends.

djustably supported upon each of the turning 'arms 3G 'is a clip device 37, the clip device 'being coupled to a vmagnet carrying f rod 38. Adjustably supportedon the rod 38 is va clip device 39fcarrying a magnet 40, preferably ofthe horse-shoe form, as shown.

Support-ed upon one set of the bars r11,-

relatively near the-member 10 is a plate 41, and connected to this plate, as by clips 42, are magnet members 43, preferably in horseshoe forni. Y I

Each sheetof music which is to be turned is provided at its outer edge with a small imetal contact plate,`represented at`44, With which the magnet- 40l contacts Whenthe' turning arms 36 `and the coupling rod V38 are in the position shown -in Figs. 1- and 6. Tlierslie'ets to be lturned are also each vprovided with a small m'etal'co'ntact plate at the inner edge, as shown at 45, in po- Y sitiontobelengaged Aby the lother lmagnets .43,-to hold'the backs or cover members'of' lthe music 4sheet'srin vposition upon the'cen#y tralframe member 10, the Yfo'ijeefof the 'magnets 43 being ksutcient to lhold the backs of the sheets from displacement by the force required to V'turna the looseleaf, or sheet,

y but-"Whichmay be removed and other sheets arranged'onV the holding portion When anabnormal vforce isV applied.

,-lVhe'n the ordinary music sheet is ein- V Y ployed, `coinprising a front 46 and back 47 in one sheet' folded together and an intermediate loose leaf-48 between the front and back, as represented lin Fig. 12, the contactvplates 45 are applied to the intermediate sheet'48 only, the `front Yand back sheets 46 and 47 having portions cut out "as'i'epresented at 49 inFig. 12, to expose the contract 'members Vfor`"engagement by the magnets 43. VThen applie'dto the ordinary three sheet form, the Contact plates are attached to the-intern'iediate loose leaf only, asthisloose 'leaf'only is to be turned.-

The sheets employed for bands or orches-' tras'are` generally of theloose leaf form, as represented'in Fig. '13,'Witheyelets 50 to enafble'them to'be detachably arrangedbetween covers, and in this case the contact membersg44'only are employed, as the relatively stiff covers are'suflicient to hold the connected leaves in'place When the separate leaves are turned.

When the improved devicieisto be applied to a musical composition having two from the central frame member 10, and the rear or inner edges of the sheetsr 48 are held against the member 10 by the magnets 43, hence 'when the turning rods 36 are actuated, the magnet 40 describes a. greater half circle than the sheet 48 andits contact 4.4. By this arrangement as the sheet 48 isfturned over by the act-ion of the rod 38 andits magnet40, the'magnet `Will 'be gradually Withdrawn from the contact 44 and thus release the sheet Twhich ris thus folded over against the front46, lea-ving the arms 36, rod 38 and magnet ,40'to be returned to former position ready to' turn another sheet, if one or more sheets arepto be turned. ln otherwvords, the magnet 40 Will be pulledk loose from 'the contact`44` as the turned 1n Figs. 15 and 16 the improved device is shown applied to the music support of a# piano, a portion of the Vfrontupper panel being represented at 51, and the lower Vfront panel at 52. When thus applied the rod 28 is supported upon the rearqface "of 'the panel 51 and the bell cranlrmemberl24isi`ipf sheet approaches its turned position. v

ioo y position to beengagedby thec'onta'ct members 45 of the sheets to be turned. A mag net 57 for each of the contacts 56 is 'sup-` ported in the panel 51 andthus energi-zes the contacts 45 .and 56 and holds `v'the'music sheets in position.

The panel 51 Vis provided WithgslotsjS through Which thefarms 36 vprotrudefaiid operate, as shown. y

VThe improved device'is struction, can be inexpensively lmanufactured, and the partsadjustable to :adapt-itto sheets or leavesef various"sites,` and'to any required number of sheets or leaves. j

VThe preferred embodiment of the ii'ivention is disclosed in the drawings?and,set

forth in thespeciiication, but it Will be. understood that modifications Within thescope of the .claimed invention'niayjb'e made in the censtruction AWithout departing from the principle of the invention or'sacrificingy any of its advantages. f Y l, o

Having thus described tl'ie'inventioinwliat is claimed as VneuT isz- A device of the class described comprissimple `in'V :con-

a magnet element movable with said turnmg arm 1n position to engage the armature at the outer edge of the sheet, and means for actuating said turning arm to cause the 1 magnet element to move the sheet toward open position and be gradually Withdrawn from engagement with the armature element as the sheet approaches open position.

In testimony whereof, I afiix my signa- 20 ture hereto.

TOIVO PELTOLA.