US1032624A - Automatic tempo-regulator. - Google Patents

Description

W.. H. REBS. AUTOMATIC TEMPO BBGULATOR.

MPLIOATIONHLBD APB..27,1912. v

' v E-intented July 16, 1912.

.2 SHEETS-SHTEET 1.

lllllllilll nu Inventor:

Y y I ,ZWAtty W. H. BEES; 4AUTOMATIC T EMPO REGULATOR;

2 .9 1M ,7E. 6.H. 1% ys.. mm JH dS .mm2 n a D..

APPLIOATION` FILED .AIB.. 27,1191Z-.v

ff J2.' 36

In Ventor:

`Atty,

iff/.62M byQ/ l Sary.

UNITED STATES PATENT oEEioE.

WILLIAM'H. BEES, OF NEW YORK, N. Y.

.AUTOMATIC TEMPO-REGULATOR.

Specification of Letters Patent.

Patented July 16, 1912.

Application lestApril 27, 1912. Serial-No. 693,611.

To all whom it may concern:

Be it known that I, `TILLLUI H. REBS, a citizen of the United States, and a resiydent of New York city, borough of Mang well known and are generally used in playing attachments.

hattan, in the county of Xew York and State of New York, have invented certain new and useful Improvements in Automatic Tempo-Regulators, of which the following is a specification. i

This invention relates to new and useful improvements in automatic ltempo regulators, for use in connection with the air motors for moving perforated musicsheets in playing attachments for musical instruments. A

The object of this invention is to provide a new and improved automatic tempo regulator for the above purposes which is simple in construction, andwhich is capable of changing the speed of the air motor, from faster to slower or slower to faster, either slowly or suddenly as may be necesin a reliable and effective manner.

In theaccompanying drawings 'in which like -letters of reference indicate like parts in all the figures: Figure 1 is a longitudi nal sectional elevation of myimproved automat-ic tempo regulator in connection with the motor for moving the music sheet `and the cont-rolling valve for this motor. Fig. 2 is a vertical transverse sectional view through the tempo regulator and through the valve mechanism for the same and the tracker board. Fig. 3 .is a plan view of part of the tracker and part of the perforated music sheet, parts being broken out and others shown in section.

The motor 1 for moving the perforated music sheet is an air motor and may be of any conventional construction provided with a crank shaft 2 and e series of 'motor bellows 3 for operating the crank shaft.- i

From the crnk shaft 2 the power is transmittal to the perforated music sheet' rolls or spools in any wellknown manner.v Air is exhausted from the bellows of this motor through a tube 4 into the valve chest 5 and from the latter into anexhaust tube 6 and' from the chest 5 to the tube 6.

the opening can be adjustedto any size by a slide valve 7 in the valve casing, so that by moving the slide valve to the left the effective area for the passage of air is increased and the motor caused to run faster, and by moving the valve to the rightthe effective area is decreased and the motor is caused to run slower. The parts so far described are also On a base plate 8, twosets of standards 9-are mounted and in said four standards two parallel screws 1'0 are mounted. and each screw carries a cog wheel 11, which cog wheels are engaged thus compelling the screws to rotate in opposite directions. One of the screws carries at its end a 'sprocket wheel 12 or other power transmitting contrivance for the purpose of rotating said screw from a small pneumatic or other motor 13 which runs at uniform speed. A

rod 14 is mounted on grooved rollers 15 on the base plate 8 so as to permit of moving this rod lengthwise with as little friction as possible. Oney end of this rod isi'pivotally connected with a lever 16 pivoted at 17 and connected at its opposite end with a rod 18l attached to the previously mentioned valve 7 so that as this rod 14 is moved lengthwise in one direction or the other the valve 17 is moved correspondingly. A hub 19 is secured on the rod 14 and from the same an arm 20 projects upward and to said arm a T-shaped yoke 21 is pivoted at 22 and is provided in the lower end of its upright member with a recess 23 forreceiving the upper end of a spring 24 secured at 25 to the arm 20 of the hub 19, so that this spring will normally hold the vertical member 22 ofthe 'yoke 21 in vertical alinement with the arm 20.' The yoke is provided in each arm at 26 with a threaded nut portion which can engage the corresponding screw 1() vbelow it,4 but which nut portions are normally out offengagement with the screw when the vertical member of the T-shaped' yoke is in perfect alinement with the 'arm 20. The outer end of each arm of the yoke 21 is connected by a rod 27 with the'movable board 28fof a pneumatic 29, which pneumatics are secured on rods 30 which run on grooved rollers 31 on the base plate 8, The'rods 30 and rod 14 are connected by cross pieces 32 soth'at the rods 30 and ,14j travel'uniformly in the direction of their length in either d1- r'e'ction. Each'bellows'29 is connected by a flexible' tube 33 with a val-ve casing containing a controlling valve :35 whlch 1s operated vfrom -a diaphragm'BG, `the chamber of which is connected by a tube 37 with a duct 38 or 3f) in a tracker board 4() over which the perforated music sheet 44 passes. There being two valves two tracker ducts 3S and 3.() there are two rows 4l and 42 of perforationsv in the music sheet. as the paper covers the holes 3S and 39 the valvesl 35 keep the bellows 29 open to the atmosphere and t-he bellows are expanded and both ends of the yoke 2l are raised, that is, the yoke held in such position that neither of the two screw parts 2G is engaged with the screw below it and consequently the yoke and the parts connected therewith are at a standstill and the valve 7 controlling` the air motor for the musical instruments retains its position.

If the speed of the motor 3 is to be increased. a hole in the row 4l of the note sheets is provided and when this hole or slot registers with the duct 3S air passing through the conduit 37 and acting on the diaphragm .5G seats the valve 35 and the right hand pneumatic 29 is now exhausted and pulls down the right hand end of the T-shape yoke 21 against the tension of the spring .2,4 and engagesthe right hand screw' part 2G of the yoke with the corresponding screw and this causes a movement of the yoke, the rods 14 and 30 to the right, whereby the controlling valve 7 of the motor 3 is opened to a greater extent and such engagement of the part 26 with the screw as described above continues for the length of time that the slot 4l registers with the duct 3S, that is to say, the greater the length of the slot 4l. the greater will be the movement of the valve 7 toward the open position. Vhen the end of the slot 4l arrives at the duct 88 the valve 35 is moved outward b v suction. permitting air to pass into the right hand bellows 29, which expands, permitting the spring 24 to throw the yoke into normal disengaged position. In this manner the valve 7 can be opened for a greater or'less distance and remains in the position into which it has been adjusted y until one of the screws is again engaged with a threaded part of the T-shaped yoke 2l.

Then the speed of the motor is to be decreased a hele or slot in the row 421 is broughtJ into engagement with the tracker duct- 39, and the left hand screw part 26, on the yoke, is engaged with the left hand screw, and this causes the movement of the two shafts 14 and 30 with the yoke to the left, for a greater or less distance corresponding to the length of the slot in the music sheet, and thereby the valve 7 is moved a greater or less distance toward the closed position and remains in such position after the slot or hole 42 has come out of register with the duct 39, and so remains until by the registering of one of the holes As longI of the rows 4l or 42 inthe note sheet with one of the tracker ducts or 39 the rod 14 connected with the valve 7 is again shifted in one direction or the other.

Having described my invention what I claim as new and desire to secure by Letters Patenti is,:-'

l. The combination with a motor and its controlling valve, of two screws, means for rotating them in opposite direction, a nicmber capable of engagement with either screw, and mams for operating said motor controlling valve from said member, substantially as set forth.

2. The combination with a motor and its controlling valve, of two screws, means for rotating them in opposite directions, a member capable of engagement with either screw, and pneumatic means for engaging said member with either screw, and means for operating said controlling valve from said member, substantially as set forth. 3. The combination with a motor and its controlling valve, of two screws, means for rotating them in opposite directions, a member capable of engagement with either screw, means for operating the motor controlling valve from said member, and pneumatic means for engaging said member with either screw, and means for controlling said pneumatic means from a perforated music sheet, substantially as set forth.

4. The combination with a motor and its controlling valve, of two parallel screws, means for rotating saidk screw in opposite directions, a member capable of engagement vwith either screw, a connection between said member and the motor controlling valve, two pneumatic mechanisms for shifting the member to be engaged with the screws, and means vfor controlling said pneumatic motor mechanism from a perforated music sheet, substantially as set forth.

- 5. The combination with a motor and its controlling valve, of a longitudinally movable rod connected with said valve, two parallel screws, means for rotating lthem in opposite directions, a shiftable yoke carried by the rod connected with the motor controlling valve, and means for shifting said yoke foi connection with either screw, and pneumatic means controlled by the music sheet for operating the means for shifting the yoke, substantially as set forth.

6. The combination with a motor and its controlling valve, of a longitudinally movable rod connected with the valve, two parallel screws, means for rotating them in opposite directions, and an arm carried by the rod connected with the motor valve, a yoke pivoted on said arm and having two threaded parts adapted to be engaged with the screws, a spring for holding said yoke in normal position disengaged from the screws,

yoke,

two pneumatic means for engaging either end of the yoke Wit-li a screw, and means for controlling said pneumatic means from the perforated music sheet, substantially as set forth.

7. The combination with a motor and its controlling valve, of a rod mounted to move vlongitudinally and connected with the valve,

a rod at each side of the above mentioned rod, cross pleces connecting the three rods,

' an arm on the middle rod, a yoke pivoted -on 'said arm and provided with two screw ling valve from a perforated music sheet, substantially as set forth.

S. The combination with a motor and its controlling valve, of a rod connected with` the controlling valve, two devices for moving said i'od iii'opposite directions, pneumatic means for connecting the rod witheitlier one otn said devices and means' for controlling the operation of said pneumatic means from a tracker by means of a perforated music sheet.

Signed at New York city, in the county of Xew- York and State of New York this 8th day of Apr. A. D. 1912.

WILLIAM H. mins.

, lVitnesses:

A. IHGDONNELL, Liiovo EVERDEENE,

Images