US847770A - Brake for self-playing musical instruments. - Google Patents

Description

, EATENTED MAR. 19, 1907., J. HATTBMER. BRAKE FOR SELF PLAYING MUSICAL INSTRUMENTS.

APPLICATION FILED NOV.6,1906

511mm for To (all whom it may concern/r UNITED S- ilA'llEi JUSTUS HATTEi/IER, OF WVIESTYIINEYMY PAT our OFFICE.

"ionic, NEW JERSEY, ASSIGNOR To" HARDMAN,-PEOK & COMPANY, OF NEW YORK, N Y., A CORPORATION OF NEW YORK.

BRAKE FQR SELF-PLAYING MUSICAL INSTRUMENTS.

Specification of Letters Patent.

Patented March is, 1907.

Application filed November 6, 1906. Serial No. 342.277.

Be it known that I, J USTUS HATTEMER, a

citizen of the United States, residin r at West New-York, in the county of Ho son and State of New Jersey, have invented certain new and useful Improvements in Brakes for Self-Playing Musical Instruments; and I do hereby declare the following tobe 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. j

This invention relates to selflaying musical instruments, and especiall T to key- 15* board playing instruments operating with a perforated music-sheet.

Anobjeet of the invention is to provide in .a seIf-Iplayingmusical instrument a take up spool avin an im )roved brake mechanism associated 't erewith to prevent the take-up spool from racing during the rewind.

A further object of the invention is to provide in a device of the class a brake-disk applied to the shaft of a take-up spool and with a s yie dingly upon the brake-disk with means operated from the rewind mechanism for re leasing, the tension of the brake during the winding.

With these and other objects in view the invention comprises certain other novel constructions, combinations, and -arran ements of parts, as will be hereinafter more Fully de-' scribed and claimed.

In the drau-ings, Figure l is a View of the improved brake mechanism shown in side elevation and associated with a fragment of a conventional take-u spool. Fig. 2 is a view of the brake mec anism shown in end elevation.

Like characters of reference designate corresponding parts throughout the several views.

Theimproved brake mechanism forming the subject-n1atter of this application is adapted for association with a keyboard seltplayin'g instrument or attachment for playing keyboard instruments wherein a take-up spool 10 is provided with a trunnion 11, j'ournaled in a cheek-plate 12. The trunnion 11 throughthe c eek-plate and is provided wit an axially-extending shaft 13. To the side ring-pressed brake-shoe arranged to bear referablyy' extends outwardlyi of the cheek plate is rigidly secured abracket 14, bent outwardly and then upwardly to accommodate and journal the extremity of the shaft 13,. U on the bracket 14 is rigidly secured another racket 15, provided with a pointed screwlfi, engagingfthe end of'the shaft 13, andwith a knurled head 17 for adjusting the screw 16 and a knurle'd jam-nut' 18 for securing the screw at-an adjusted position, Between the u wardl extending-end of the bracket 14am the c eeklate 12 is defined a space within which. a rake-disk 1 9 is rigidly secured to the shaft 13 in any approved manner, as by means of a set screw 20 inserted through-the hub 21 and engaging the shaft 13 in the usual well-known manner.

" At any convenient place a block 22 is upper end with a brake-shoe 24. v The brakeshoe 24 is rovided with a concavity 2!) ol less radius t an the arc of the disk 19. so t lm t the brake-shoe 24 bears u' on the disk 19 only at the extremities o the (0Il('-fl\'ll The spring 23 is secured to the block 22 in any approved manner, as by a screw 26, and

a second screw, as 27, is provided bearing against the spring 23 and above arecess 28, formed in the block 22, by means of which the tension of the spring 23 is adjusted.

' For releasing the brake-shoe 24 from contact with the disk ltlduring the operation or winding the music-shoot a shaft 2-9 is journalod, as in the blocks and\31, and at itupper end is provided with a substantially right-angularly-disposcd oil set portion 32, engaging the inner side of the brake-shoe 25 and preferably within a notch 33, formed therein. At its lower end theshalt 29 is providcd with a similar riglitmugularly-disposed oil'set 34, disposed in uphmc at right angles to the plane of the client 31., and its extremity connected with the rewind apparatus, as at 35, whereby the shaft 3U is turned upon its axis to iorce the-shoe 24 outwardly while the instrument is playing and while the musicsheet is being wound upon the take-up spool, 10, so that no friction is prodmml by the shoe then to prevent the spool 10 from racing.

It will be readily understood that Wllllt lhc IOO , brake-shoe 24 out of contact with the 'npheryo'fthe disk 19., so that the take-up 'other-endlfor winding the music-sheet. As

soon as the music-sheethas been entirely rewound the" rewind ,mechanism is thrown into operation in the usual well-knownmanner, and by means ofithe connection'3'5 the -'cheek-plate, a take- E trunnion extending t a bracket secured to disk 19 by shaft '29 is released and the brake-shoe 24 thrown into yielding engagement with the means of the spring 23. What I'claimis g. 'In a'mechanism of the class described, a spool proyided with a roughlthe'cheek-platb, the"cheek-plate and forming abearing. for the trunnion, an auxiliary bracket secured to the bracket, and a' pointed screw extending through the au-xil 1ary bracket, and engaging the axial extrein ,ityofthe trunnion.

cheek plate, a take up spool having a trunnion' extending-through the-cheek-plate, a bracket secured .to' the cheek-plate and form- .ing abear'mg for the trunnion, an auxiliary bracket secured to, the bracket, a-pointed. and engaging the axial extremity of the trun nion, afnctron-disk dislpose'd upon the trun nion, and a brake friction-disk the cheek-plate, 'a friction-shoe v g theifr'ictionrdisk, a shaft extending r2. a mechanisr'n'ofthe class-described, a

racket dingly engaging the 3. In a mechanism of the class described, a cheek-plate, a take-u spool provided with a trunnion extending t rough the cheek-plate, a bracket rigidly secured to the cheek-plate and embodyin a bearing for the trunnion, an auxiliary brac et secured to the bracket, a pointed screw inserted through the auxiliary bracket, and engaging the axial extremity of the trunnion, a friction-disk carried by the trunnion between th e bracket and yieldingl y engaging the friction-disk, and means to disengage the friction-shoffrom the disk.

4. In a mechanism of the class described, a

' cheekeplate, a'take-ii spool provided with a I trunnion'extending t a bracket securedupon'the cheek-plate, PTO", "tiding a journal' bearing for the trunnion, a friction-disk candedqrigid'ly upon the trun- ,nion within thebracket, a block secured to rough the cheek-plate,

the cheek-plate, a v spring secured to the block,--a brake-shoe carried by the spring in yieldingengagement with the periphery of a ong and journaled dpon the surface of the cheek? plate, and provided with an ment with the brake-shoe, and means to move the shaft angular- 1y.

' testimony whereof I affix mysignature in presence of two witnesses.

' i -JUS 'IUS.,HATTEI-1ZER.

Witnesses:

OAR E. PEGK, HUfGo" MOCK.

Images