US1345316A

US1345316A - Leaf-turning device

Info

Publication number: US1345316A
Application number: US307187A
Authority: US
Inventors: Ciabotti Ciro
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-06-27
Filing date: 1919-06-27
Publication date: 1920-06-29
Anticipated expiration: 1937-06-29

Description

C. CIABOTTI.

LEAF TURNING DEVICE. APPLICATION men JUNE 21, 1919.

1 45 3 1 Patented June 29, 1920.

2 SHEETSSHEET I.

Ill

Ciro 01271201771 C. CIABOTTI.

LEAF TURNING DEVICE. APPLICATION FILED JUNE27, 1919.

1 345, 3 1 6. Patented June 29, 1920.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

onto OIABOTTI, orMILAN, ITALY.

LEAF-TURNING DEVICE.

Specification of Letters Patent. Patented June 29, 1920;

Application filed .Tune 27, 1919. Serial No. 307,372

Via Vincenzo Monti, Milan, Italy, have invented certain newandusefu'l Improvements in Leaf-TurningDevices, of which the following is a specification.

This invention relates to apparatus for turning the leaves of a book, of a musicscore and the like and it has for its object to provide a simple andeiiicient appliance for reading desks,- music' racks and the like, whereby the leaves may be securely and rapidly turned over,'if desired without a manual intervention ofthe reader or performer.

With this object in"view', the "invention consists broadly in'an appliance wherein a pulley or the like is arr'angedtofbe'rotated for example by aid ofa pedal orof a handle and this pulley is operatively "connected with two rotary arms, the first arm being adapted to initiate the"tu'rning-over of the ,leaf, while"the"second arm serves to complete this movement.

The invention will bedescribed with ref erence to the accompan in drawing which sho'ws,:by"way of example, one of its constructional forms; it being understood that the details of construction as hereafter described maybe modified in many ways without'departing from the spiritof the invention. I

In the drawings Figuresl and 1 are a front elevation of the ap aratus;

F igs. Q 'and 2 are a horizontal section just above the doumegmove pulley;

F igs' 3 'and 3 area horizontal section showing one of the arms and the leaf en! gaging" extension thereon.-

Figs. r ande am a horizontalsection' showing the other arm and the pneumatic means thereon for engaging a leaf,

Fig.5 hows a detail.

Referring to the drawing; the apparatus comprises a bo'x sh'aped body portion a which is secured to the shelfpreferably be ne'ath the board providedtosupport'the book'or the like; or this box may be arranged to form itself theboek board. VVithin the box a there is provided at ornear its center api-n b which is rotatably mounted in the upper andlowerwalls of the box. This pin has secured on it a 'doublegroove pulley 0 onto which wind two flexible wires 03, d. The wire 03 connects with a Wire 6 arranged to lead to a pedal or handle which is located at any appropriate or desired point to allow the apparatus being readily operated by the reader or performer in the manner hereinafter described. The wire d is acted on by a spring 7 whichtends to rotate the pulley c in the opposite direction to the wire 6.

The pulley 0 has projecting from its lower face a pin 9 and from its upper face an angularly bent pin it, these two pins being arranged in vertical alinement one above the other. A disk 2' is loosely mounted on the pin Z2 beneath the pulley o and is provided with a small circumferential slot adapted to be engaged by the pin 9. A second disk loosely mounted on the pin 3) above the pulley c and has a circumferential slot intended to be enteredby the upper pin it, this slot being much longer than the slot in the disk i'and extends preferably along half the circumference of the 'disk' j. It is thus evident that when thepulley is rotated in thedirection of the arrow shown in Fig. 2, a rotary motion will be imparted first of all to the disk 2' throughthe pin 9 and after an appropriate interval of time to the disk throughthe intervention of. the pin it in the manner hereafter set forth- A coiled spring c" serves to return the disk 2' into its normal position after it has been operated. I

An arm 70 is formed integrally with the correspondingly held apart by a bracket member 0 which projects from the box a and is tapered toward its forward end so as to have, for example, a triangular shape in section.

The disk j has formed integrally with it an arm 79 which is about half as long as the arm 70. On the free end of this arm p'is rotatably mounted a bar 9 adapted to be lower end of the bar 9 so as to hold it normally in a vertical position. A coiled spring 8 is connected by a wire with the disk 7' which is normally prevented from rotating under the action of this spring by aid of a pawl t engaging a tooth formed on the disk 7'.

Both arms 79 and maybe made to telescope in order to permit the appliance being used with books of different width.

The apparatus works in the following way.

\Vhen the apparatus is at rest, the arm I: lies adjacent the box a and holds the funnel m of the rubber ball m against the marginal. rim of the right-hand leaf of the book, while the arm 79 is in the position shown in Fig. 3 where it is slightly turned outward from the shelf so that the bar 7 cannot interfere with the reading.

lVhen it is desired to turn aleaf, the reader or performer pulls the wire 6 by aid of the pedal or the handle so that the pulley c is caused to rotate and the pin to slide along the cooperating groove in the disk until it imparts a rotary motion to this disk and to the arm 70 which is thereby caused to move away from the shelf. During this re tary motion of the arm 70 the lower arms of the pincers n, a slide along the faces of the bracket 0 and approach each other so that the upper arms release their grip on. the rubber ball on. The rubber ball is thus allowed to expand and this produces a sucking action on the leaf which will thereby be caused to stick to the funnel m and be carried along by the arm is. On encountering the bar 9', the leaf carries this bar into its horizontal position so as to be able to clear it. hen the leaf has passed over the bar 9, the weight 1' returns the latter into its vertical position. In the meantime the pin 71, has traveled along the slot in the disk 7' and will now have reached the pawl '15 which holds the disk in its inoperative position. The pin it raises the pawl 25 and the spring 8 now rotates the disk j together with the arm 7) so that the bar 9 tears the leaf off from the funnel m and carries it with a jerk to the left-hand side of the book. The wire 0 will now be released and all the parts are returned into their normal position through the action of the respective springs.

What I claim is:

1. In an apparatus of the type described, a box, a pulley rotatably mounted within the box, means to rotate the pulley, a first arm, an apertured rubber ball supported from this first arm, means on the lever to grasp and compress the rubber ball, means to release the grip on the rubber ball, a second arm, an upstanding extension on this lever, and means on the pulley to operate first the first named arm and thereafter the second named arm to turn the leaf.

2. In an apparatus of the type described, a box, a pulley rotatably mounted within this box, means to rotate the pulley from the outside, a first arm, an apertured rubber ball supported from this first arm, a pair of pincers adapted to compress the rubber ball or to allow it to expand, a tapered bracket engaged by the pincers so as to cause them to open or close when the arm is rotated, a second lever, an upstanding rotary extension on this arm, means on the pulley to rotate first the one and thereafter the other arm, and means to return the arms into their inoperative position.

3. In an apparatus of the type described, a box, a pulley rotatably mounted within the box; means to rotate the pulley, an. arm to initiate the movement of the leaf, an arm to complete the movement of the leaf, means to operate the arms from the pulley, these means comprising a disk above the pulley, a disk below the pulley, these disks being loosely mounted on the pulley shaft and each formed integrally with the respective arm, a pin projecting above and below from the pulley and engaging a circumferential slot within the respective disk, these slots having different lengths so that the disks and the arms will be operated at successive times.

4:. In an apparatus of the type described,

a box, a pulley rotatably mounted within the box, means to rotate the pulley from the outside, a disk loosely mounted on the pulley shaft above the pulley, a disk loosely mounted on the pulley shaft beneath the pulley, pins on the pulley to engage circumferential slots in the disks so as to operate same, these slots having different lengths, arms formed integrally with the respective disks, an automatically operated suction levice on one of the arms to initiate the movement of the leaf, a counterweighted extension on the second arm to complete the movement of the leaf, a latch to hold the hub of this second arm in inoperative position, a coiled spring to rotate the disk and its arm when the disk has been disengaged from the latch by the pin on the pulley, and means to return the parts into their normal position.

5. A leaf turning device comprising a casing,.a shaft mounted in the casing, a pulley rotatably mounted thereon, means for rotatin the pulley, disks mounted on the shaft ad acent and on either side of the pulley, arms on the disks, suction means on one arm for gripping a leaf, an extension on the other arm for engaging the leaf, and connections between the oulley and the disks to rotate the disks and the arms.

6. A leaf turning device comprising pneumatic means for first gripping a leaf to par tially turn same, means for subsequently engaging the partially turned leaf, to complete the turning of same, and common means for operating the pneumatic means and the subseapuent engaging means.

A leaf turning device comprising pneumatic means for gripping a leaf consisting of a bulb having an annular extension at one end and a hole communicating with the interior of the bulb, means for compressing the bulb, an arm for subsequently engaging the leaf, and common means for operating the pneumatic means to grip and partially turn the leaf and subsequently operate the arm to cause same to engage the leaf to complete the turning operation.

8. A leaf turning device comprising a casing, arms rotatably mounted therein, pneumatic means on one arm for gripping a leaf, adapted to turn the leaf a determined dis tance, means on the other arm for engaging the leaf, adapted to complete the turning thereof, and means for rotating the arms.

9. A leaf turning device comprising a casing, arms rotatably mounted therein, means for rotating the arms, pneumatic means on one arm consisting of a bulb having an annular flange at one end thereof and an opening therein, adapted to grip the face of a leaf, means on the arm for compressing the bulb, and an overhalanceed pivoted extension on the other arm, adapted to engage the back of a leaf whereby the pneumatic means is operated to first grip a leaf and rotate it a predetermined distance to pass over the pivoted extension, When said extension Will then engage the back of the leaf and be rotated to complete the turning thereof.

In testimony whereof I have signed my name in the presence of two subscribing Witnesses at Milan this fifth day of June, 1919.

CIRO CIABOTTI. Witnesses:

' LAMBERTOVI LUGI,

MERLO CARLO.