US441361A - Stop and start device for phonographs - Google Patents

Description

(No Model.) 2 Sheets-Sheet'l.

H. D. GOODWIN & W. S. BURNETT. STOP AND START DEVICE FOR PHONOGRAPHS.

Patented Nov. 25, 1890.

2 Sheets-Shet 2.

H. D. GOODWIN & W. S. BURNETT. STOP AND START DBVIGE FOR PHONOGRAPHS. No. 441,361. Patented Nov. 25. 1890.

(No Model.)

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i j m v A/EM UNITED STATES PATENT OFFICE.

HENRY D. GOODIVIN AND VILLIAM' S. BURNETT, OF MIIEVAUKEE, \VISCONSIN. 7

STOP AND START DEVICE FOR PHONOGRAPHS.

SPECIFICATIGN forming part of Letters Patent No. 441,361, dated. November 25, 1890.

Application filed March 4, 1890. Serial No. 342,595. (No model.)

To all whom, it may concern.-

Be it known that we, HENRY D. GOODWIN and WILLIAM S. BURNETT, of Milwaukee, in the county of Milwaukee, and in the State of lVisconsin, have invented certain new and useful Improvements in Stop and Start Devices for Phonographs; and we do hereby declare that the following is a full, clear, and exact description thereof.

Our invention relates to stop and start devices for phonographs; and it consists in certain peculiarities of construction, as will be fully set forth hereinafter, and subsequently claimed.

In the drawings, Figure 1 is a plan View, partly broken away, of a portion of a phonograph with one form of our device applied thereto. Fig. 2 is a side elevation, partly in section, of the same. Figs. 3, 4, and 5 are details. Fig. 6 is a plan view illustrating another form of our present invention. Figs. 7 and 8 are detail sectional views on the lines 7 7 and 8 8, respectively, of Fig. 6.

A represents the bed-piece of the phonograph, B the main-shaft feed-screw, and C the hard-wax cylinder mounted on its mandrel on said main shaft, all as common with the phonograph. The end of the feed-screw B is reduced, as shown at a, and carries a collar D, (secured thereto by screw 1),) and which has ratchet-teeth formed on its opposite faces, as shown at c and (1, respectively.

E is the driving-pulley mounted loosely on the reduced end a of the main shaft, which latter is supported at this end, as shown, by pin or arbor e in bracket-arm f and set-screw f This pulley E has a hub F, the inner face of which is provided with a series of ratchetteeth, as shown at h, for engagement at the proper time with the similar ratchet-teeth d on the adjacent face of the collar D, already named.

G is the shifting-lever, and in the form of our device illustrated in the first sheet of our, drawings is shown provided witha couple of elongated slots g g to receive the shanks of screws 9 g, by which it is secured on the upper surface of the bed-piece A, and said lever carries at one end a spanner G, which in said form of our invention is received in a groove f in the hub F of pulley E. The other end of this form of lever G carries a vertical pin 9 which is received in an elongated slot g in an arm G pivoted, as shown at-g", to the bed-piece A back of the line of the lever G, said arm G projecting forward over the front edge of said bed-piece A, and having preferably a finger-piece H on its end, either in line with said arm or vertical, as preferred, just back of which this arm G may have a perforation g to receive one end of a rod or wire G whose other end is pivoted, as shown at g", to the upright arm 71 of a three-arm fingerpiece H, having projecting finger-touches h k on the ends of its lower arms and pivoted, as shown at 71 to the front wall of the bedpiece A. Near the end of the lever G, adjacent to the spanner G, there is a vertical tooth or lug G for engagement at the proper time with the ratchet-teeth c on the adjacent face of the collar D.

In the form of our invention shown in the second sheet of our drawings the lifting-lever G is preferably a single bar moving in suitable bearings, as G G, in or on the bedpiece A, and carrying a finger-piece H at one end and a spanner G at its other end, said spanner in this form being designed to straddle the driving-pulley E, and having preferably anti-friction pulleys 4 G mounted, as by screws g 9 on the end of each prong of its bifurcated end to bear against the opposite sides of the said pulleyEto reduce noise and friction, as shown, and in this form, in place of the described tooth or lug G we prefer to employ a spring G secured to the spanner G or other convenient portion of the shifting-lever G and terminating in a tooth or lug g for engagement at the proper time with the ratchet-teeth c. on the adjacent face of the collar D. To guard against a too free movement of the shifting-lever Gin this form of our device, we prefer to employ a friction-spring I, the free end of which bears against said lever G, while the other end of said spring may be secured at any convenient point, as, for instance, to the bearing G.

The operation of our device will be readily understood from the foregoing description of its construction, taken in connection with the accompanying drawings. WVe have not deemed it necessary to illustrate or describe the details of construction of the phonograph proper, such being wellknown and not of our invent-ion. A slight touch on either of the finger-pieces shown will be sufficient to cause the engagement of the tooth G or g with the ratchet-teeth c on the collar D, and the simultaneous separation of the ratchet-teeth d on said collarand the ratchet-teeth h on the hub F of the driving-pulley E,-thereby instantly stopping the revolution of the main shaft and its feed-screw B and permitting the drivingpulley E to run free without interfering with the motive power (wh ether treadle, electricity, or other means) of the machine, and, similarly, a touch from the opposite direction on the finger-piece H (or on the opposite finger-touch if the finger piece H is operated) will as quickly and readily serve to disengage the tooth G or g from the teeth 0 on the collar D and simultaneously cause the engagement of the teeth d on said collar and the teeth h on the hub F of the driving-pulley E, thereby, as the revolution of the said pulley E has not been interfered with, instantly causing the main-shaft feed-screw B to recommence its revolution at the precise point at which it was stopped.

Our reason for showing two finger-pieces H and H in the first form of our device is because the piece H may be found more c011- Venient for the dictator or person talking into the machine, while the piece H maybe more accessible to the transcriber, and it will be understood that either form of shifting-lever G may be employed with either form of our device (subject only to necessary details of mechanical construction or adjustment) and that we may employ another or intermediate finger-piece, if .desired, on the form of lever G shown in Fig. 6.

A great advantage of our present invention lies in the fact that the shifting-lever and its finger-piece is wholly independent of the main-shaft feedscrew and'its connected mech anism, which insures that the needle (not shown) which indents the hard-wax cylinder 0 shall always take up its work from the precise point it last indented, and, further, by our construction the finger-pieces are always at the same points in starting and stopping irrespective of the position of the wax-cylinder 0 at any time, and hence the operator does not need to use the eyes to determine such points, butcan always mechanically find the same with the finger, thereby saving much time, as well as insuring greater accuracy in transcribing.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In a stop and start device for phonographs, the combination, with the mainshaft and a driving-pulley and independent collar thereon, of a shifting-lever carrying devices for engagement with said driving-pulley and independent collar alternately.

2. In a stop and start device for phonographs, the combination, with the bed-piece and supporting-frame, of a main shaft,adriving-pulley on said shaft having ratchet-teeth on its hub and a collar also on said shaft having ratchet-teeth on its opposite faces, and a shifting-lever carrying devices for engagement with said driving-pulley and said collar alternately, substantially as set forth.

3. In a stop and start device for phonographs, the combination, with the bed-piece and supporting-frame, of a main shaft, adriving-pulley and independent collar on said shaft and each provided with ratchet-teeth, a shifting-lever lnovably secured to said bedpiece and free from all connection with the main shaft and its connections, and engaging devices and a finger-piece on said shiftinglever, substantially as set forth.

4. In a stop and start device for phonographs, the combination, with the bed-piece,

main shaft, and supporting-frame, of a driving-pulley loose on said shaft and having ratchet-teeth on one face of its hub, a collar fast on said shaft and having ratchet-teeth on its opposite faces, and a shifting-lever movably secured to said bed-piece and provided with a spanner for engagement with said driving-pulley and a tooth or lug for engage ment with said collar, substantially as set forth.

In testimony that we claim the foregoing we have hereunto set our hands, at Milwaukee, in the county of Milwaukee and State of Wisconsin, in the presence of two witnesses.-

HENRY D. GOODWIN. \VILLIAM S. BURNETT. WVitnesses:

H. G. UNDERWOOD, WM. KLUG.

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