US1311123A - Music-leaf turner - Google Patents

Description

T. T. JAKOBSON. MUSIC LEAF TURNER. APPLICATION FILED FEB. 28. I917- 1,31 1 ,123, Patented July 22, 1919.

a SHEETS-SHEET 1. 3

T. T. J'AKOBSON.

MUSIC LEAF TURNER. APPLICATION FlLED FEB. 29, 19.17.

1 ,3 1 1 1 23 Patented July 22, 1919.

- 3 SHEETSSHEET 2.

T. T. JAKOBSON.

MUSIC LEAF TURNER.

APPLICATION mn FEB. 28, 1911.

Patented July 22, 1919.

3 SHEETS-SHEET 3- UNITED STATES PATENT OFFICE.

THOMAS T. JAKOBSON, OF LOS ANGELES, CALIFORNIA.

MUSIC-LEAF TURNER.

Specification of Letters Patent.

Patented July 22, 1919.

Application filed February 28, 1917. Serial No. 151,522.

T 0 all whom it may concern:

Be it known that I, THOMAS T. J AKOBSON, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles, State of California, have invented certain new and useful Improvements in Music-Leaf Turners, and I do hereby declare the folmusic leaf engaging frames which are adapted to be swung independently about their pivots to turn each successive leaf or sheet of music. Another object is to provide a novel support for the music rack and leaf engaging frames whereby thesame may be properly positioned on a piano in front of the player. Other objects will appear in the details of construction and arrangements described in the specification annexed hereto.

The inventive idea involved is capable of receiving a variety of mechanical expressions, some of which are found in the accompanying drawings, wherein v Figure 1 is a front elevation of one form of the invention.

Fig. 2 is a central vertical'sectional view.

Fig. 3 is a front elevation of another form of the invention.

Fig. 4 is a fragmentary detail perspective view of a portion of a music rack showing the means for maintaining certain members .of the rack in extended position.

Fig. 5 is a transverse sectional view of one of the fastening devices carried by the leaf turning frames.

Fig. 6 is a fragmentary perspective view "of one of the auxiliary frames used in con- Fig. 10 is a slightly modified form of connection.

Referring to'the drawings and more particularly to the embodiment of the invention shown in Fig. 1, the numeral 15 indicates a sectional standard of any type to which is connected the usual tripod 16. The standard 15 has, at its upper end, an extension 17 which engages in a bracket 18 carried by the rear face of the central vertical member 19 of the music rack which is generally indicated by the numeral 20. This music rack is of any preferred construction and includes the pivotally connected rack members 21, side arms 22 and connecting links 23. i

Associated with the rack members 21 is a fastening device for maintaining the said members 21 in their extended positions and said device preferably includes a plate 25 ofsubstantia'lly rectangular formation and having one of its edges'cut to provide the spaced lugs 26 which are bent over upon the body portion of the device and which receive between the same and said body portion the edges of the rack members 21,

said lugs being arranged on both sides of the central vertical member 19. When in this position the portion 27 of the plate 25 between the lugs 26 will engage the rear face of the central member 19. This fastening device also provides a pivot for the swinging leaf engaging arms generally indicated by the numeral 28 and for this purpose the rear of the plate 25 is provided with a plurality of small tubes or sockets 24 corresponding in number to the number of frames 28, each socket being adapted to receive the lower inturned end 30 of one of the frames 28. i

Each of the frames '28 comprises the rela tively adjustable sections 31 and 32, the horizontal arms 33 of the latter section being in the form of tubes having flared ends so as to telescope with the horizontal arms of the section 31, the latter having buffers or stops 34 thereon for limiting the inward movement of the section 32. Connecting the outer ends of the arms 33 of each frame is a vertical arm 35, preferably in the form of an elongated strip of metal and having secured thereto. at intervals the upper and lower fastening devices 36 which are similarly constructed. Each device is in the form of a sleeve member 37 embracing thelarm 35 and having extendmg therefrom one arm 38 of a clip, the other arm 39 thereof belng plV- oted thereto and spring pressed so that the vertical edge of a sheet of music may be securely retained between said arms39- and adjacent portion of the member 37. It will 'beapparent that by'constructing each frame 7 of relatively adjustable sections the outer section may be adjusted toaccommodate the 2 be readily detached fromsaidmember. when desired. It will thus be apparent from the foregoing description that each of the frames 28- is pivotally mounted in the elements 24 and 42 so that the same may be swung independently of each other from one side of the rackto the other side carrying with them the sheets of music which are attached thereto. The element 42 has secured to one face thereof a plate .43 which extends'beyond the 7 upper end of said elementand which isprovided at its upper end withan extension 44 having a plurality ofopenings 45 therein arranged at various distancesv from :the :body portion of the plate 43. Any one of "these openings 45 'isadapted to receive 'theupper end of a center sheet engaging rod 46 which extends longitudinally of the central .mem-

ber 19 in spaced relation thereto and has its lower end mounted in any one of a number :of openings 47 formed ina plate 48 secured to the plate 25 and extending laterallytherefrom,said rod 46 extending betweenthe inner ends ofthe rack members 21. This rod 46 is employed for the purpose offacilitating the turning of the sheets 'ofmusic and provides a hinge for each sheet as the same is beingturnedy-and it will be apparent that by the provision of the openings 45 and .47 therod 46 maybe adjusted laterally relative to the member 19 so as to provide for the mounting of sheetsor books of music ofdifferent thicknesses between said rod and said memberf19. i 1

i In the form of the invention shown in Fig.

.3 the supporting element 42" which corresponds to the element 42 is of slightly different construction and consists of a pair of plates 43 whichreceive therebetween the upper end of the central member .19 of the rack, said plates being secured to said memher by means of the bolts 44 and wing nuts 45, said. bolts extending through an elon= gated'slot 46 formed in the member '19. It

will be apparent from this construction that by removing the wing nuts and bolts, the element 42 may be readily detached from the-member19r The rear of the plate 43 has a number of sockets 47 secured thereto and similar in construction to the sockets 41 -of-the element 42.

v A pair of auxiliary frames 50 similar in construction are associated with the rack 20 and preferably include arms 51, have their adjacent ends pivoted as indicated at 52, each arm of the lower frame being providedwvith clips 53 for engaging certain of the connecting links23 of therack whereby said auxiliary frame is supported in position. The upper v auxiliary frame 50 may also be provided with clips similar to the clips 53, or the sanreiniay have guide brackets 54 which receive" the "upper ends 7 of the vertical arms 22 of the'rack, in which case theframefis, supported in position by means of cap members 55 which are connected to the brackets 54 by the flexible elements 56'; said caps being 'mounted over the upper end ofsaid arms 22 as shown in Fig. 1. v V the frame 50 extend horizontally a considerable distance beyond the verticalarms 22 and are thus arrangedin the path of move ment of the arms35 of the frames 28 and thus provide stops therefor to prevent excessive swinging thereof. "The outer end of each arm 51 hassecured-thereto oneend of a flexible chain or cord theother end of which carries a p r fastening device; '58

employed forthefpurpose of securing the .outer sheets orfcoversof the musicto said arms 51.

Referring now to there is shown a rack supportingfdevice employed for the purpose of mounting the music rackr20 on a piano in proper position and said supporting device preferably includes .a rod 59 adapted to rest upon the top of the piano transversely thereof and having an extension 60 atthe .rear end thereof which en- .gagesfthei rear of the piano{. Adjustable longitudinally of the rod 59 and secured thereto by means of a nut Gl'is a telescoping sleeve 62 the forwardend ofwhich has secured thereto the depending supporting rod 63 extendingd'ownwardly in a diagonal direction soa s to properly incline the rack '20 .which is secured thereto. This rod 63 has adjustably mounted thereon a sleeve mem- .91) In each instance the arms 51 off 3120 ber 65 which carries the brackets 66 to which i is secured thelcentralqmember 19 ofthe rack 20 by means .of the fastener 67. V

, f In Fig.10 there is shown a slightly modified meansof attaching the auxiliary frames pensed witli and the armsot the auxiliary frame have, at pivoted thereto the arm 55 having upon its free and ana member .l25 50 to thesideiarms 22 wherein the brackets 54, asshown at the left inFig. 1, are dis- 56' which receives therein the upper end of the arm 22, said cap member 56 being formed by bending a pair of oppositely disposed lateral extensions of the arm 55 upon themselves to form a socket.

What is claimed is 1. A music leaf turner comprising a rack including a central member, rack members pivoted thereto, a fastening plate for maintaining said rack members in extended position and including lugs formed upon one edge thereof and engaging said rack members on each side of said central member, a supporting element adjustably mounted upon said central member, and to which a plurality of leaf engaging frames are pivotally connected.

2. A music leaf turner comprising a rack including a central member, rack members pivoted thereto, a fastening plate for maintaining said rack members in extended position, a supporting member mounted upon said central member and including a sleeve for receiving the upper end of said central member and a plurality of tubes carried by said sleeve, and tubes also carried by said fastening plate, said tubes in the supporting element and fastening plate receiving the ends of leaf engaging frames.

In testimony whereof, I afiix my signature, in the presence of two Witnesses.

THOMAS T. JAKOBSON.

Witnesses:

GUs'r. KLING, FRANK K. EVANS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of ratents,

Washington, D. 0.

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