US473246A - Leaf-turner - Google Patents

Description

.(No Model.)

O. H. VAN LDlllfISEN.

LEAF TURNER.

UNITED STATES PATENT OFFICE.

CHARLES H. VAN DEUSEN, OF VERONA, ILLINOIS.

LEAF-TU RN ER.

SPECIFCATION formng part of Letters Patent No. 473,246, dated April 19, 1892.

Application filed May 1, 1891. Serial No. 391,291. (No model.)

To alwhom it may concern:

Be it known that I, CHARLES H. VAN DEU- sEN, a citizen of the United States of America, resding at Verona, in the county of Grundy and State of Illinois,have invented certain new and useful Improvements in Leaf-Turners, of which the following is a specification,reference being had therein to the accompanying drawings and the letters of reference thereon, forming a part of this specification, in which- Figure 1 is a front elevation of the device. Fig. 2 is a bottom plan view showing an arm in the act of turning. Fig. 3 is avertical section of the device, taken on line 1 of Fig. 1, looking to the left, showing one of the springclamps for holding aleaf of abook. Fig 4 is a side view of one of the spring-jaws for grasping a book-leaf, and Fig. 5 is a side elevation of one of the racks and its pinion for operating one of the leaf-turning arms.

This invention relates to certain improvements in leaf-turners, designed more particularly for use on a piano for turning leaves of music, which improvemcnts are fully set forth and explained in the following specification and claims.

Referring to the drawings, A represents a base-board for supporting the working parts of the device and for supporting a book, the leaves of which are to be turned.

E is a foot-rail secured on the upper side of board A, and is for supporting the lower end of a book When the board A is in proper position on a piano.

F F are housings for containing coil-springs on horizontal rods Z, the ends of which coilsprings extend out over vboard A and form spring-arms c for clamping the leaves of a book, not to be turned, to board A.

B B B are a series of arms having on their outer ends spring-jaws D, respectively, for grasping in snccessive order the leaves to be turned. The inner ends of said arms are pivotally connected to the upper side of board A, centrally between the housings F F, and are respectively provided on their inner ends with pinions V V V for engaging, rcspectively, the racks S of the sliding bars 7' 1' r, as shown particularly in Fig. 5. The opposite or outer ends of said sliding bars extend upward and form arms Y, by means of which they maybe respectively reciprocated.

ll and VV are standards forming an object to grasp in connection with arms Y in order to reciprocate them. v

J isa gate forming an extension of the footrail E, and is designed to behinged or pivoted thereto and turned over backward, as shown in broken lines in Fig. 1, when the device 1s in operation. NVhen not in operation, said gate is for the purpose of holding arms Bdown, as shown in full lines in said figure, so that they may be held in place when the device 1s not being used.

O are posts for holding separate and in place the reciprocating bars r.

Vhen it is desired to remove the springarms c from pressure on the book, they are designed to be turned backward in theslot m (shown in the housings) and placed behind the shoulder n, which will hold said arms off the book as long as may be desired.

In operation the book or shcet of music is laidupon the board A so its back will be about central on said board. The spring-arms c c are then let down to rest upon and hold the leaves not to be turned. The leaves to be turned are respectively placed one in each of the springjaws D, said jaws grasping them at their lower outercorners or near their corners, and being at such time in the position shown in Fig. 1. Vhen it is desired to turn a leaf, or the first one of the series to be turned, the thumb of the left hand is placed against the standard I-I and the forefinger behind the standard Y of the bar r to be reciprocated forward, The operator may then move one of said bars r with its rack forward, and the resultwill be to partially rotate the pinion V, meshing with the bar and attached to one of the arms B, and reverse said arm and cause it to turn, as is shown in Fig. 2, and carry with ita leaf that may be grasped byits spring-jaw D, thus turning the leaf, and so each leaf may be turned in succession. Said leaves may be turned back to their first position simply by reciprocating racks S back to their first position, in which case the said thuinb and finger would grasp standard XV and arms Y. In this instance the device is shown as arranged to turn three leaves only; but it may be constructed with suifl'cient parts to turn any desired number of leaves. The

spring-arms c c have their outer ends arranged to rest on pads secured to the board A, so that IOO spring-jaws Don their outernds and the pinions V on their inner ends for engaging, respeotively, said raoks, the housin'gs F F, rie; spetivly having the slotsm m'forming the shionlid'ers nn'afld thespri'n'g-'arrns c o, having their inner ends forrning. a coil within said hoiis'ihgs, all arranged to op'rate siibstantially as and for the purpose set forth.

2. In the leaf-turner shown and deseribed, in combination with the board A, the housingsv'F F, respeotiveiy having the slots m, formig the shouldersn, and the coii-springs arranged within said housings and having their en'ds'extend to form the spring-arms c c for seouring a book on said board, substantially as and for the purpose set forth.

CHARLES H. VAN DEUSEN. Wi'fn'ssz N. H. BAJLY, o. W. W'RTE'N.

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