US1006904A - Music-leaf turner. - Google Patents

Description

A. K. L. BLAQK. MUSIC LEAF TURNER.

APPLICATION FILED JUNE 1, 191D.

000904, Patented 0ct.24,`1911.

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iiffzsmmmmsmw T Mgg A..K.L.BLA0K, MUSIC LEAF TURNER. APPLICATION FILED JUNE'l, 1910.

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Patented. 0st. 24, 1911.

ABRAHAM K.-L. BLACK, or sUNNYsIDE, WASHINGTON.

MUSIC-LEAF TURNER.

Specification of Letters Patent. Patented Oct. 24, 1911.

Application filed J'une 1, 1910. Serial No. 564,366.

To all whom it may concern.'

Be it known that I, ABRAHAM K.. L.

BLACK, a citizen of the United States, resid-` jects the provision of a device of that kind adapted to be applied to the rack of a piano, organ or analogous musical instrument, and when so applied to present a neat and attractive appearance.

Another object is the provision of a music leaic turner including a pair of relatively movable push-rods connected with the leaf turner, the construction being such that by alternately pressing said push-rods the leaf turner will be moved in opposite directions.

lVith these and other objects in view, which will more fully hereinafter appear, the present invention consists in certain novel details of construction and arrangement of parts, hereinafter fully described, illustrated in the accompanying drawings, and more particularly pointed out in the appended claim; it being understood that various changes in the form, proportion, size, and minor details of the device may be made, within the scope of the appended claim, without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawings forming part of the specification; Figure l is a front elevation of a music rack provided with my' improved device. Fig.v 2 is a rear elevation 1 thereof. Fig. 3 is a sectional plan view approxin'latcly on the line 3 3 ot Fig. 2. Fig. l is a bottom plan View. Fig. is a sectional end View on the line 5 5 of Fig. 2.

Similar numerals of reference are em -3 ployed to designate corresponding parts throughout.

The rack is designated by the numeral 5 and adjacent to its opposite ends is provided with clips G and 7, said clips being each preferably formed of a single piece of steel wire the opposite end portions of which are bent laterally and inserted into the outer :l'ace ot' the rack, and when so inserted a space will exist between the body of the clip and face of the rack sufficient to receive the covers of a music sheetor book when the said vmusic sheet or book is open. A clip 8 is positioned at the middle of the rack and is formed similar to the clips 6 and 7 and is designed to bear on the middle of an open music book and coperating with the end clips to prevent displacement of the said book. Extending inwardly from-the medial portion of the upper side of the rack is an openin the lower end of which termihates in a ongitudinal slot or opening 9 positioned adjacent to the lower side of the rack. Loosely fitted in the said opening is a shaft 10, the lower end of which is journaled i-n an opening in the middle portion of the lower side wall of the slot 9.

A leaf turning frame is in the present instance shown to be formed ofa single piece of wire bent into a U-shape the opposite limbs of which are designated bythe numerals 11 and 12. The upper of these limbs is provided at one end with a flattened head 13, having a central opening to snugly res ceive the upper end of the shaft 10.. The lower limb l2 is terminally provided with a divided head 14, between the sides of which is fixedly secured a pinion 15. The divided head 14 and pinion 15 are arranged in the oblong slot 9, the said head and pinion being provided with alining openings to snugly vreceive the lower end portion ot' the shaft 10. With this construction it will be manifest when the shaft is turned the leaf turner will be turned likewise.

While I have shownbut one leaf turner and a mechanism for operating the same, it must be understood, however, that I am not to be limited to thisgspecific number, since it y will be readily understood, from what will appear later, how a greater number of leaf turner-s and parts for operating the same, may be employed without departing from the spirit, or sacrificing any of the advanta es of the invention.

' 5y reference now to Fig. 2 it will be seen that arranged on the inner or rear l'ace of the rack 5 is a fra-ine, the opposite longitudinal sides of which extend longitudinally of the rack and are designated by the numerals 1G and 17. The sides 16 and i7 are arranged beyond the opposite sides of the slot f) their opposite ends' being connected together by the end pieces 18 and i9. lo sitioned between the sides 16 and 17 and at the opposite ends of the slot t) are plates 20 and 21 extending at right angles to the inner or rear face of the rack 5 and corre- -lri ings it will he seen that guide openings are formed in the end pieces 18 and 19 and in.

alinement w'th the raclrba'r 22, and slidingly titte-d in these uide openings are the outer ends of connecting rods 23 and 24, the inner ends of which are loosely connected to the opposite ends of the rack bar 22. Jourvnaled adjacent to the opposite ends of the sides and 17,' and adjacent to tlie outer surfaces of said sides are shafts 25 and 26. rlhe'medial portions of these shafts are provided with crank arms 27 and 28, the said crank arms 27 and 28 extending at right angles to the medial portions of the shaft and having at their free ends inwardly eX- tending slots which receive lateralstuds 29 and 30, extending from the medial portions of the connecting rods 23 and 24. The lower ends of the shafts 25 and 26 extend belowv the lower surface' of the lower side 17 of the frame and lhave fixedly secured thereto crank arms 31 and 32, said crank arms 31 and being positioned on the shafts 25 and 26 at approximately 270 fr in the crank arms 27 and 28. rlhe cranlr arms 31 and i2-extend approximately in length to e crank arms 27 and 28 and extend to nits midway between the shafts 25 and 2G d center of the lower side l? of the frame, en d adjacent to their terminals are provided with outwardly extending crank pins 33 and pairlof linksv are designated by the numerals 35 and 36, the inner ends of said links being provided with openings for the reception of a pivot pin' 38, extending through the center of the lower side 17 of the frame. The outer ends of the links are .fided with longitudinal slots 38 and 39,

' ich receive the cranks pins and 34, as rly shown in the drawings. Formed in teli: and adjacent to the lower side are a pair of spaced openings in 'alinement, with the medial portions of the links 35 and 36, and slidingly fitted in these openings are push- rods 40 and 41, the inner ends of which are pivoted to the medial portions of the links 35 and 36 and the outer ends of which are provided with buttons 42' and 43. With this construction itwill be manifest when the parts are positioned as shown in the drawings and the leaf turner is on the left of the rack, that by forcing the push-rod to the right inwardly, will resuit in rocking the shafts 25 and 26, wherebythe opposite push-rod will move outwardly and at the Sametime the rack bar will be reciprocated, thus turning the leaf turner to the opposite side of the rack. It will he manifest when the parts are in this position and it is desired to' turn the leaf to its original position the salme can lbe done by depressing the push-rod on the left, whereupon the parts will resumeV their original positions. A

From the foregoing, it is evident that l have provided a device which is comparatively simple in structure and inexpensive in manufacture, embodying few parts and these so arranged that the danger of de rangement will be reduced to a minimum.

. in a .music leaf turner, the combination with a. frame, and a leaf turning device; of a horizontally reciprocating vrack bar, a

pinion connected with the leaf turning device and engaging the rack, connecting rods slidingly fitted in the frame and connected each at'one end to the rack har, a pair of oppositely disposed vertical shafts journaled in the frame, crank arms at theup per and lower ends of said shafts, the upper of said crank arms being connected at one end to the said connecting rods, a pair of links pivoted at oneend to the frame 4and pivotally connected at their opposite ends to the lower` of said crank arms, and a pair of relatively movable reciprocating push rods connected to the'links.

In testimony whereof I afliir my signature in presence of two witnesses.

JAMES M. DUNN, FREEMAN L. BALL.

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