US938085A

US938085A - Music-leaf turner.

Info

Publication number: US938085A
Application number: US44844808A
Authority: US
Inventors: Pietro Stragiotti; Joseph Vercellini
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-08-13
Filing date: 1908-08-13
Publication date: 1909-10-26
Anticipated expiration: 1926-10-26

Description

P. STRAGIOTTI & J. VERGELLINI.

MUSIC LEAF TURNER.

APPLICATION FILED AUG.13, 190a.

Patented 0011.26, 1909. 2 SHEETS-SHEET 1.

uoontod/ Patented Oct. 26, 1909.

' 2 SHBETSSHEET 2.

MUSIC LEAF TURNER.-

APPLICATION FILED AUG.13, 1908.

P. STRAGIOTTI & J. VERGELLINI.

UNITED STATES PATENT, oriuon.

PIETRO STRAGIOTTI AND JOSEPH VERCELLINI, OF HURLEY, WISCONSIN.

MUSIC-LEAF TURNER.

To all whom it may concern:

Be it known that we, PIETRO STRAcIoT'rI and J osnrrr VERoELLINI, subjects of Victor Emanuel III, King of Italy, residing at Hurley, in the county of Iron and State of lVisconsin, have invented certain new and useful Improvements in Music-Leaf Turners; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the ac companying drawings, and to the figures of reference marked thereon, which form a part of this specification.

Our invention relates to music leaf turners and has for its object to provide an apparatus for turning the leaves of a sheet of music or music book, which apparatus can be applied to a piano, organ or the like, or a music stand which is designed and adapted to hold sheets or books of music in proper position in front of the musician.

With this object in View our invention consists in the novel construction and arrangement of parts of our music leaf turner, and particularly in the construction and arrangement of the helix.

Our invention also consists in certain other novel features of construction and in combinations of parts, all of which will be first fully described and afterward specifically pointed out in the appended claims.

Referring to the accompanying drawings: Figure 1 is an elevation of the device showing same in operative position. Fig. 2 is a horizontal sectional view taken through line 22 of Fig. 1. Fig. 3 is a vertical sectional view taken through line 33 of Fig. 2. Fig. 4 is fragmentary elevation showing the helix in position for turning the leaf. Fig. 5 is a horizontal sectional view taken through the operating mechanism. Fig. 6 is a front elevation of the operating pulley, and Fig. 7 is a rear elevation of the same.

Like numerals of reference indicate the same parts throughout the several figures in which;

1 indicates the device which comprises a base 2, to which base is hinged two panels 3 and 4, said panels being hinged at 5 at their outer edges as clearly shown in Fig. 2.

Referring now to Fig. 1 and also to Fig. 3 it will be seen that each of the panels 3 and 4 is provided with a

set screw

6 and 7 preferably located at the upper inner corner of Specification of Letters Patent.

Application filed August 13, 1908.

Patented Oct. 26, 1909. Serial No. 448,448.

each of the panels 3 and 4, said screws 6 and I 7 being for the purpose of regulating the distance of the panels 3 and 4 from the base 2.

Arranged, as shown in Fig. 2, and, be-

tween the two panels 3 and 4 is the music leaf turning apparatus 8, said apparatus ending with a bend 10 slightly outwardly curved, the projection of which on the nor mal plain ofthe helix is a spire of Archimedes. This apparatus is fixed as near as possible to the axis of rotation 11 of the music sheets 12, so that the final bend 10 of the helix passes over the said axis 11 of the music sheets. A shaft 13carries said helix, said shaft extending rearwardly and carrying loosely thereon a pulley' 14; a spiral spring 15 having one'end 16 thereof connected to the pulley l4 and the other end 17 thereof connected to a partition 18 as shown in Figs. 2 and 6. Rigidly carried on the shaft 13 in rear of the pulley 14 is a ratchet wheel 19, and a spring actuated pawl 20 carried on the rear face of the pulley 14 is normally in engagement with said ratchet wheel 19 as clearly shown in Fig. 7. The extreme end of the shaft 13 carries a crank 21, to which crank is connected a spiral spring 22 as shown in Fig. 2 for the purpose of normally holding the crank 21 in position shown in Fig. 2. The sheets of music or book are preferably held in position shown in Fig. 2 by means of a spring not shown.

Referring now to Figs. 1 and 4 it will be seen that in front of the first spire of the helix is arranged a half moon plate 23, said half moon plate holding in place the first sheet to be turned as shown in Fig. 1; while the end of the bend 10 holds the last turned sheet in position as clearly shown in Fig. 1. A suitable cord or rope 24 is carried on the pulley 14 and connects with the pedal or other suitable operating device, and upon depression of the pedal or other device the cord 24 rotates the pulley in a direction contrary to that of the hands of a watch as viewed from the front. The spring held pawl 20 on said pulley in engagement with the ratchet wheel 19 rotates said ratchet wheel, thus turning the shaft 13 and the helix 9. The leaves of a sheet of music or book having been successively arranged between the spire of the helix as shown in Fig.

2 one revolution of the helix causes the bond 10 of the helix to engage one of the sheets, said bend passing under the sheet to be turned as shown in Fig. t, and as said sheet is turned by said bend each succeeding sheet progresses one spire in the helix. When the operating cord 2% is released the spiral spring 15 in front of the pulley 14: rotates said pulley in the opposite direction again winding the operating cord 24L thereon; while the coil spring 22 in engagement with the crank 21 on the shaft 13 draws said crank 21 into position shown in Fig. 2 which rotates the helix causing the bend l0 thereon to assume the position shown in Fig. 1, thus maintaining the turned sheet in its proper position; while the moon-shaped plate 23 is passed up in front of the next sheet to be turned as shown in Fig. 1, thus securely maintaining said sheet in proper position.

Having thus fully described our invention what we claim as new and desire to secure by Letters Patent of the United States, is

1. A music leaf turner comprising a spiral having its coils regular and sinistrorsal, said coils decreasing in their forward progression and ending in an outwardly curved bend, a plate carried in front of the first coil and in rear of the said outwardly curved bend for holding in place the first sheet to be turned,

the said outwardly curved bend holding in place the last sheet turned, the said spiral being adapted to receive a sheet of music between each coil thereof, means for rotating the spiral and means for automatically maintaining the said outwardly curved bend and the said plate in proper position for holding the sheets of music against turning after the spiral has been rotated.

2. A music leaf turner comprising a spiral adapted to receive a sheet of music between each coil thereof, said coils terminating in an outwardly curved bend, a plate on said spiral and in rear of said outwardly curved bend for holding in place the next sheet to be turned, said outwardly curved bend holding in place the last sheet turned, means for rotating the spiral, and further means for maintaining the said outwardly curved bend and the said plate in proper position for holding the sheets of music against turning after the spiral has been rotated.

In testimony whereof, we afiix our signatures, in presence of two witnesses.

PIETRO STRAGIOTTI. JOSEPH VERCELLINT Witnesses GRIFF THOMAS, FRANK lVIARDA.