US1303125A - Stop mechanism for talking-machines - Google Patents

Description

l.. Y. SQUIBB. STOP MECHANISM FOR TALKING MACHINES. APPLICATION FILED nc.13,1a12. RENEwEn SEPT. x7. ma. 1,303,125.

Patented May 6, 1919:

2 SHEETS-SHEET l.

L. .Y. SQUIBB. STOP MECHANISM FOR TALKING MACHINES. APPLlcAxoN FILED DEc.13.1912. AmsNEwEDsEPTgH.191e.

, Patented May 6, 1919.

2 SHEETS-SHEET 2.

W/TNESSES ATTORNEY yso rrED slinrns PATENT oFFIcE.

LLOYD Y. SQUIBB, 0F CAMDEN, NEW JERSEY, ASSIGNOR TO VICTOR TAALKIING MACHINE COMPANY, A CORPORATION OF NEW JERSEY. l

STOP MECHANTSVM FOR TALKING-MACHINES.

Specification of Letters Patent.

Patented May 6, 1919.

Application led December 13, 1912-, Serial No. 736,478. Renewed September 17, 1918. Serial No. 254,511.

To all whom t may concern:

Be it known that ll, LLOYD Y. SQUIBB, a citizen of the United States, and a resident of Camden, county of Camden, State of New Jersey, have invented certain new and useful Improvements in Stop Mechanism for 'llalking-Machines', of which the following is a specification.

The main objects of this invention are to provide in combination with a talking machine, an improved automatic brake; to provide an improved automatic brake mechanism; to provide an improved sound record adapted to actuate, through the medium of sound. reproducing means, an automatic brake; and to provide other improvements as vwill appear hereinafter.

In the accompanying drawings, Figure 1 is a fragmentary top plan view of a talking machine provided with an automatic brake constructed in accordance with this invention,-

the brake being shown in an operative position; Fig. 2 a fragmentary top plan view of the same, showing the brake in inoperative position; iFig. 3 a sectional elevation on line 3-3 of Fig. 1; and Fig. 4 an enlargement of a portion of Fig. 2.

Referring to the drawings, one embodiment of this invention comprises a talking machine including thek usual or any suitable cabinet 1 upon which is mounted a horizontal rotary disk record support 2 carried by a vertical spindle 3, which is rotated by the usual mechanism (not shown), arranged within the cabinet. Arranged above the record support 2 is the usual sound box 10 which is connected to one end of a tubular member 11, the other end of which is pivotally connected to one end of a hollow tone arm 12, which is mounted to swing about a fixed vertical axis, the sound box being thus connected to the tone arm to swing about a horizontal axis toward and away from the record support 2, and to swing with the tone .arm about the vertical axis of the tone arm. The tone arm 12 may be arranged t'o communicate with the usual or any suitable sound amplifier 15.

For stopping the rotary record support 2, therey is provided an automatic brake mechanism which is preferably arranged upon the top of the cabinet 1 and mainly beneath the record support 2. This brake comprises a pivot to the plate 20 and the other end of which carries a friction pad or brake shoe Y 24, arranged to engage, when in operation,

against the inner cylindrical surface of a cylindrical flange or rim 25 which projects downwardly from the rotary record support 2, coaxial and preferablypintegral or rigid therewith. The record support rotatesl in the "direction indicated by the arrow 26 in Fig.

1 and the brake shoe 24 and its pivot 23 are preferably-arranged so that the brake shoe engages the rim 25 in advance of the pivot 23. A spiral spring 30, which is connected at one end to the brake lever 22 adjacent the brake shoe 24 and at its other end to a lug 31 projecting upwardly `from the base plate 20 integral therewith, acts to throw the brake shoe into engagement with the rim 25.

For holding the brake shoe 24 out of engagement with the rim 25, the brake lever 22 is provided with a tooth 35 integral therewith and arranged adjacent and preferably in the rear of the pivot 23. This tooth is arranged to engage in a recess 36 provided therefor in the free end of a catch plate or lever 37, which'is mounted to oscillate about a vertical pivot .38 extending through the other end .of thelever and fixed in the adj acent end of the base plate 20. yWhen the tooth 35 is in engagement in the recess 36, the plate 37 holds the brake lever 22 in an inoperative position as indicated in Fig. 2, and the spring 30 under an initial tension tending to throw the brake lever into operative position upon the release 0f the tooth 35 by the oscillation of the catch plate 37.

For releasing the brake lever 22 manually from engagement with the catch plate 37, and for resetting thebrake lever manually into engagement with the catch plate 37, there is superimposed-upon the brake lever 22, a releasing and resetting lever 40 which is mounted to oscillate about the fixed pivot 23 of the brake lever, and which projects from the pivot 23l outwardly beneath and free from the record support and then is bent upwardly and outwardly to form aV convenient handle 41, whereby the same may be actuated. This releasing lever is provided with a' lu 42 integral therewith and bent downwardly so as to engage against the outer edge of the free end of the catchplate 37 f1/as the releasing lever is rotated clockwise to move the free end of the catch lever 37 out of engagement With-the tooth 35 to release the brake lever 22. The releasing lever 40 is also provided with an extension 43 integral therewith and -projecting ,horizontally over the free end ofthe catch lever 37 and terminating in a downwardly projecting lug 44,-

which acts when the releasing lever 40 is rotated anti-clockwise, to engage the inner edge of the catch plate 37 and to press the free end of the catch plate 37 toward the brakel lever 22 to bring `the catch plate positively into engagement with the `tooth 35 of the brake lever 22. AThese lugs, 42 and 44, of the releasing and resetting lever 40 also coperate with the catch plate 37 to limit the oscillation of the releasing and resetting lever 40.

record support 2, to limit 'the clockwisev movement of the brake lever 22.

For automatically tripping or releasing the brake lever 22, there is provided'a trip lever 50 which is mounted to oscillate about the fixed pivot 38. as an axis. This trip lever projects outwardly from the pivot 38,

and extends freely beneath and projects out? wardly from the rim 25 of the record supv port. The outer portion of this trip lever is bifurcated to form two- fingers 51, 52, preferably arranged in a horizontal plane, and spaced to form a passage 53 adapted te receive the lower end of a vertical stud 54 rigidly secured to and projecting downwardly from the tone arm 12. The lower end of the stud 54 is preferably lin the form of a roller 54 connected to the upper portion of the stud by m'eans of a vertical pivot, the roller 54 being adapted to rotate against the inner edges of the fingers v51, 52, to actu- -ate the trip lever 50 in accordance with the movement of the tone arm 12 and in a man-l ner determined by the slot 53. The inner portion of the slot 53 preferably extends in a direction radial with respect to the pivot 38, and from the outer end ofits radial portion, the slot is preferably, throughout the greater portion of its remaining portion, inthe form of an arc of a circle having a radius equal to the distance between the longitudinal axis of the stud 54 and theaxis of oscillation of the tone arm l2, this arc being preferably arranged tol be substantially coaxial with the axis of rotation of the tone arm 12 when the stud 54 is in engagement in this circular portion of the slot 53. The outer ends of the fingers, 51, 52, preferably diverge to form a comparatively wide inwardly tapering entrance to the slot 53, so that the stud 54 may conveniently enter into engagement between the lingers 51, 52.

A clutch is provided between the trip lever 5() and the catch lever 37 whereby, when the trip lever ismoved anti-clockwise, it will move independently of the catch lever, but whereby when the movement of the trip lever is reversed, the motion of the trip lever will be transmitted to move the catch lever 37 in a clockwise direction. This clutch comprises a segmental extension or clutch member55 integral with the trip lever 50, and preferably provided with an aperture 55 for .a purpose that will appear hereinafter. This segmental extension 55 projects between and is spaced from the base plate 20 and the catch plate 37 and has an outer edge wall comprising two cylindrical or circular4 portions, an inner portion 56 and an outer cut-away portion 56', of different radii respectively and both coaxial with the axis of the pivot 38 about which the trip lever oscillates, the inner portion being of greater radius than the outer portion, and these two portions being `connected by an inclined shoulder 56". A clutch shoe 57 is arranged to coperatewith the inner portion 56 of the edge of the segmental extension 55 and is rigidly secured to one end of a clutch arm 58 which extends between the catch plate 37 and the segmental extension 56, and which is pivoted at its other end to oscillate about a vertical pivot 59 rigid with the catch plate 37, the axis of t-he pivot .59 being spaced from the axis of the pivot 38 and the clutch shoe 57 being thus mounted to oscillatte eccentric with respect to the segmental extension 55.- The lower end of the pivot 5 9 preferably projects below the clutch arm 58, and engages in the aperture 55 in the segmental extension 55 to coperate as a stop with the bounding walls of the aperture in limiting the oscillation of the trip lever 50 to `maintain the trip lever always in aconvenient position for operation. A spiral spring 60 or other yielding means is connetted at oneend to the free'end of the clutch arm 58 and at its other end to an extension 6l vintegral or rigid with the catch lever 37 and normally tends to rotate the clutch arm 58 clockwise about the pivot 59 with respect to the catch lever 37 to force the clutch shoe 57 into enga-gement with the circular edge 56 of the segmental extension 55. The pivot 38 is preferably prvoided at its upper end with a head 62 arranged to engage against the upper surface of the catch plate 37 and .two washers 63 and 64 are interposed around the pivot between the catch p-late 37 and the `'trip lever 50 and between the trip -lever and the base plate 20 respectively to hold the catch plate and t-he trip lever in spaced relationship.

A fixed stop 65 projects upwardly from the base plate 2O rigid and preferably integral therewith and is arranged to engage against the clutch shoe 57 when the tooth 35 of the brake lever is not in engagement in its notch 36 of the catch plate 37, to limit the movement of the clutch shoe 57 in a clockwise direction and to relieve the pressure between 'the clutch shoe 57 and the circular edge 56 of the segmental extension 55. When the clutch shoe is in this position, the trip lever 50 may be rotated clockwise about its pivot 38 with very slight resistance on the part of the clutch shoe.

When the brake shoe 24 is in an inoperative position with the tooth 35 of the brake leverin engagement in its recess 36 of the catch plate 37, and the talking machine is in opera-tion reproducing sound, the clutch shoe 57 is spaced anti-clockwise from the stop 65 and isheld in engagement with the inner portion 5,6 of the edge wall of the segmental clutch member by` the spring 60. When the clutch shoe 57 is in this position, the trip lever may be rotated anti-clockwise about its pivot 38 with very slight resistance on the part of the clutch shoe but when the movement of the trip lever is reversed, the clutch shoe on account of its eccentric action, binds firmly against the inner portion 56 of the edge wall of the segmental member 55 with the result that a slight movement of the trip lever clockwise will carry with it the catch plate 37 and release the brake le- .ver, thus permitting the brake shoe to be thrown into engagement with the flange 25 of the record support 2 by means of the spring .30.

It may also be stated that when for any reason the trip lever 50 is moved clockwise about its axis 318 from the position shown in F ig. 2, the inner portion 56 of the edge wall of the segmental clutch member rotates away from and out of contact with the clutch shoe 57 and the cut-away portion 56 of the edge wall moves into a position opposite but out of contact with the clutch shoe, thus relieving the clutch shoe from unnecessary wear.

For controlling the trip Alever to release the brake .lever 22 automatically promptly after the completion of the reproduction of the sounds recorded on the record, means is provided for automatically reversing the movement of the trip lever, at the proper moment. In this instance, the sound boX or sound reproducing means 10, is mounted to coperate with a disk sound record carried by the record support 2 and to be propelled across the record by and in accordance with the record, the sound box 10 being provided in this instance with the usual stylus 71 which is larranged to engage in the usual spiral laterally undulating groove 72 of uniform depth, the walls of which correspond to sound waves. The spiralV undulatory groove 72 is as usual, substantially concentric with the record 70, and extends from the outer margin of the record toward the center thereof, terminating at a point spaced from the center of the record. For the purposes of this invention, the sound record 70 is provided, in addition to the usual spiral sound groove 72, with a supplementary groove 73 which, in the instance illustrated in Figs. l

and 2, leads from the inner end of the spiral groove 72, and is in the form of a circle arranged eccentric with respect to the record within the space inclosed by the spiral groove. The construction is such that when the stylus reaches the inner end of the undulatory spiral groove, it follows into the supplementary groove 73 and a single revolution of the record causes la reversal of the movement of the tone arm 12 and a reversal or clockwise movement of the trip lever 50 the movement of the trip lever at the proper moment.y For inst-ance, the spiral undulaltory groove 72 may terminate in a supplementary groove` which may be longitudinally, either entirely curved or entirely straight, or curved in'- part and straight in part, and, when curved, may be either in the form of a regular or of an irregular curve, providing that the supplementary groove leads first from the sound undulatory groove or toward the center of the record, in a direction to continue the travel of the sound reproducer and afterward leads toward the sound undulatory, groove, or away from the center of the record in a direction to reverse the travel of the sound reproducer.

It is also to be understood that this invention may also be applied to talking machines using cylindrical records or records of any other form, the record in any case being provided either wit-h a supplementary groovey eration of the brake, it may be stated that.

when it is desired to use the automatic features of the brake, the trip lever 5() is adjusted so that the stud 54 of the tone arm 12 engages in the longitudinally curved portion of the passage 53. The sound box 10 is then placed in position so that the stylus 7l Will be at or outside ofthe margin of the record 70. The Ibrake shoe 24 is then released from its normal engagement with the rim 25 of the record support 2 by moving the handle anti-clockwise. As soon as the record support 2 has reached its proper speed, the sound box 10 is lowered and the stylus 7l is placed in engagement with the beginnig of the undulatory groove 72, the various parts of the device being then in `the positions shown in Fig, 2 with the shoulder 56 of the segmental extension in engagement with the clutch shoe 57. The machine then operates in the usual manner to reproduce the sounds recorded upon the record and until the stylus has reached the inner end of the spiral undulatory sound groove 72. During the first part of this period, during which the stylus has been traveling in the spiral groove and reproducing sound, the stud 54 has ordinarily been traveling through the longitudinally curved portion lof the passage 53 and the trip lever has consequently remained stationary, but during the latter part of this period, the stud 54 has entered and has beenl traveling in the inner radial portion of the passage 53 and has been'rotating the trip lever 50 anti-clockwise. During this period of sound reproduction, the clutch shoe. 57 is held lightly in a substantially stationary position in contact with the inner cylindrical portion 56 of the outer edge wall of the swinging segmental extension 55 by the spiral spring 60. Upon the completion of the reproduction of the sounds recorded upon the record, the stylus continues its movement and from the inner end of the spiral groovev into. the circular eccentric groove 73, Where during a single revolution of the record, the movement of the stylus is l'irst continued toward the center of the record, continuing the anti-clockwise 4movetrip lever 50, and with the result that the brake lever 22 is released and the brake shoe is thrown into engagement with the flange 25 of the record support 2, and the rotation of the record support is thus automatically stopped.

Although only a single form has been shown in Which this invention may be embodied, it is to be understood that the invention is not limited to the specific form shown, as it may be applied in various constructions Without departing from the spirit of the invention or the scope of the appended claims. I

Having thus fully described my invention, I claim and desire to protect by Letters Patent of the United States:

l. In a talking machine, the combination with a rotary record support, of sound reproducing means arranged to move as a Whole in a predetermined direction across said support to reproduce sound from a sound record on said support, a brake mechanism for stopping the rotation of said support, means to move said sound reproducing means in a direction opposite .to said redetermined direction,.and means actuate by said reproducing means and operative at substantially the moment when said reproducing means start to move in said opposite direction for automatically operating said brake mechanism.

2.v The combination. with a rotary record support, of .sound reproducing means arranged to move across said support in a predetermined direction.A to reproduce sounds from a sound record on said support, means to move said sound reproducing means in a direction opposite to said' predetermined direction, a brake for stopping the rotation of said support, a member operativelyconnected to said sound reproducing means and actuated by said sound reproducing means substantially when it starts its movement in said opposite direction to -automatically release said brake, and menas movable independently of said member for resetting said brake.

' 3. The combination with a rotary record support, of sound reproducingv means arranged to move across said support in a predetermined direction to reproduce soundsv from a sound record on said support, means to move said sound reproducing means in the opposite direction, a brake for stopping said support, a ment-ber operatively connected to said sound reproducing means and actuatedby said sound reproducing means at the begmning of its movement in said opposite direction to automatically release said brake, and menas movable independently of said member for Vresettingsaid' I brake or for `releasing said brake. A

4. In a talking machine, the combination With a rotary record support, of an element arranged to move in a fixed` plane, a-soun'd box carried by said element and mova'ble with respect thereto toward and away from.

said support and movable across said sup- 'verse to saidl predetermined direction, a

brake for stopping the rotation of said support, and ,means in operative engagement with said element and actuated by said element as it moves in said opposite direction to automatically release said brake.

.5. In a talking machine, the combination with a rotary record support, of a sound record carried thereby,'sound. reproducingmeans including a stylus arrangedto engage said record, and propelled across said'record by said stylus in a predetermined direction and in anopposite direction by the engagement of said stylus with said record, a brake mechanism for stopping the rotation of said support, and means actuated by said sound reproducing means during its movement in a direction opposite to said predetermined direction for automatically operating said brake mechanism.

6. In a talking machine, the combinationv with a rotary record support, of a disk record carried thereby and provided with an undulatory spiral groove and With a circular groove eccentric With respect to said spiral groove and connected to one Aend thereof, sound reproducing means arranged to en gage said grooves consecutively and to be voit a rotaryT sound record provided With a spiral undulatory groov'e corresponding to sound Waves, and a circular groove communicating With and eccentric With respect to said spiral groove, a brakingy member for controlling the rotary movement of said record, and means actuated by said circular eccentric groove for releasing said braking member. y

8. In a talking machine, the combination of a rotary sound record formed'to propel sound reproducing means in a predetermined direction for reproducing sound and then to propel said sound reproducing means in an opposite direction, a brake mechanism for controlling the rotary movement of said record, and means actuated by said sound reproducing means when movmg 1n sald opposite direction to operate said brake mech- A anism. Y

9. In a talking machine, the combination of a rotary sound record provided With a groove extending around said record and gradually approaching the center thereof and then receding from the center, a braking member for controlling the rotary movement of said record, and means operated `by said groove at the point Where lit approaches the center of said record and then recedes therefrom, for releasing said braking member.

10. Asound record provided With a substantially spiral undulatory groove, said vspiral groove being substantially concentric with said record, and said record being provided With a groove communicating with the inner` end of said spiral groove and leading from said end gradually toward the center of said record and then away from said center, means to rotate said record, a brake mechanism for controlling said means for rotating said record, and means actuated by said groove communicating with the innerend of vsaid spiral groove for operating said brake mechanism.

l1. The combination with a rotary member having a spiral track thereon and a traveling member engaging said spiral track and edthereby in a predetermined direction Aacross the rotary member, of means on said v rotary member at the end of said track for ing member in its said slight movement in said reverse direction for releasing the brake.

12. The combination With a rotary member and a traveling member cooperating With said rotary member and propelled in a predetermined direction thereacross, of means at a predetermined point on said rotary member for imparting a slight movement to the traveling member in the reverse direction, a brake mechanism controlling the rotation of said rotary member, and means controlled by the traveling member in its said slight movement in said reverse direction for operating said brake mechanism.

In Witness whereof, I have hereunto set my hand this 11th day of December, 1912.

LLOYD Y. SQUIBB.

Witnesses: v

v FRANK B. MIDDLETON, J r.,

CHARLES F.W1LLARD. l

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