US582866A - lochmann - Google Patents

Description

3 Sheets-Sheet l.

P. LOCHMANN. MUSICAL INSTRUMENT.

Patented May 18,1897.

wl-E, E

lll l' (No Model.)

WITNESSES! (Nol Model.) 3 Sheets-Sheet 2.

P. LOCHMANN.

MUSICAL INSTRUMENT.

No. 582,866 Patented May 18, 1897.

INVENTOR 3 Sheets-Sheet 3.

(No Model.)

P. LOGHMANN.

MUSICAL INSTRUMENT. No. 582,866. Patented May 18,1897.

Fig@

- l /e ///A I ,u in, 1 j 6. I u/ 'Ag/ r i l?,

f *aq/M /f Fig?.

K a www I j Fi 5 am@ f n l K, hv A,A /e 7 Ynemew: jnygvz'f.

mw. fy/EMWW UNITED STATES PATENT CEEICE.

PAUIJ LOCIIMANN, OF LEIPSIC, GERMANY.

MUSICAL INSTRUMENT.

SPECIFICATION forming part of Letters Patent No. 582,866, dated May 18, 189'?.

Application filed April Il, 1896. Serial No. 587,070. (No modell) T0 all whom t may concern.-

Be it known that I, PAUL LocHMANN, a subject yof the King of Prussia, residing at Leipsic, Saxony, German Empire, have made a new and useful Improvement in Musical Instruments, of which the following is a clear and exact specification.

My invention has reference to improvements in devices for feeding the music-sheets of mechanical musical instruments, it havin g for its object to insure ease of operation and correctness of rendering.

To this end my invention consists in the combination, with a cithern or like string instrument, of a swin gin g finger-board arranged transversely to the strings and engaging with the music-sheet, and a pawl operated by the iinger-board and placed in operative connection with notches or perforations provided in the music-sheet.

The nature of my invention will best be un.- derstood when described in connection with the accompanying drawings, in which- Figure l represents a plan or top view of a cithern provided with my improvement, part being broken away. Fig. 2 is an end View. Figs. 3 and -I are side views, on an enlarged scale, illustrating the operation of the feeding device. Figs. 5, 6, 7, and 8 are longitudinal cross-sections of the cithern, illustrating my invention embodied in modified forms.

Similar letters of reference designate corresponding parts throughout the several views of the drawings.

Referring at present to Figs. l to I of the drawings, the letter b designates the iingerboard placed transversely to the strings e an d hinged by pivots t to two lateral brackets a, secured to the body of the cithern. A suitable handle or finger-piece, as G, maybe attached to the inger-board to facilitate the movement of the same. Above the strings c are ar ranged dampers g, carried by hat springs h and engaged by pins t', guided in the bridge f. According to the holes in the music-sheet particular construction of the damping devices is old and forms no part of my present invention.

To feed the music-sheet forward during each depression of the linger-board, I provide said music-sheet with feed notches or perforations a' along its opposite sides, which in the example shown in Figs. 1 to i are engaged by pinions j, mounted on a shaft t, extending across the instrument and having bearings in boxes Z, secured to the brackets a.,

A spiral spring zr, coiled about the hub of one of the pinions, constantly presses the shaft t in its longitudinal direction. To one side of the linger-board and above and in line with one of the pinionsj is arranged a gravitating pawl s, adapted to engage and turn the corresponding pinion when the finger-board is depressed, while when the linger-board rises the pawl slides over the teeth of the gear. On each depression of the finger-board the m usic-sheet is consequently advanced by one row of perforations. In practice the pawl may be made of comparatively hard rubber to render the operation noiseless. A curved guide-plate, as o, is used to direct the musicsheet upward, so that the strings are unobstructed.

In Figs. 5 and G I have shown the pawls s attached directly to the linger-board and engaging with the feed notches or perforations on the opposite sides of the music-sheet n, said pawls being subjected to the action of springs u, which hold them downward. lVhen the finger-board is vibrated, the pawls s' engage one of the notches or perforations y and feed the music-sheet end forward.

In Figs. 7 and S I have shown the musicsheet carried by the finger-board and the'J IOO swinging finger-board, combined with an operative pawl, a music-sheet provided with feed notches or perforations for its propulsion through the medium of said pawl, and damping devices operated by the iinger-board on its depression, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

PAUL LOCIIMANN.

lVitnesses:

En. BnEsLAUEn, RUDOLPH FRICKE.

Images