US1162779A

US1162779A - Starting and stopping mechanism.

Info

Publication number: US1162779A
Application number: US8?169314A
Authority: US
Inventors: Newman H Holland
Original assignee: NEW JERSEY PATENT CO
Current assignee: NEW JERSEY PATENT CO
Publication date: 1915-12-07
Anticipated expiration: 1932-12-07

Description

N. H. HOLLAND. STARTING AND STOPPING MECHANISM. APPLICATION FILED APRHM. 1914.

MWQJWQ. Patented Dec.7,1915.

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NENIVIAN H. HOLLAND, OF WEST ORANGE, NEW JERSEY, ASSIGNOR TO NEW JERSEY PATENT COMPANY, OF WEST ORANGE, NEW JERSEY, A CORPORATION OF NEW JERSEY.

STARTING AND STOPPING MECHANISM.

Specification of Letters Patent.

Patented Dec. '2, 1915.

Application filed April 14, 1914. Serial No. 831,693.

To (ZZZ whom it may concern Be it known that I, NEWMAN H. Hon- LAND, a subject of the King of Great Britain, and a resident of West Orange. Essex county, New Jersey, have invented certain new and useful Improvements in Starting and Stopping Mechanism, of which the following is a description.

My invention relates to starting and stop- .ing mechanism and is particularly applica ole to phonographs.

By reason of the inertia of the movable parts of the phonograph, the support for the record or blank ordinarily starts to move very slowly upon the starting of the phonograph and takes some time after starting to reach the correct speed of operation.

The principal object of my invention is to provide an improved device for accelerating he movement of the said support and the motive means therefor so as to bring the same quickly up to normal operating speed upon the starting of the phonograph.

Other objects of my invention will appearmore fully in the following specification and appended clain'is.

in order that my invention may be more clearly understood, attention is hereby directed to the accompanying drawing forining a part of this specification and in which- Figure 1 is a perspective view of the prin c'pal parts of the preferred form of my invention; Fig. 2 is a plan view partly in section showing the device of Fig. 1 applied to a rflmnograph cabinet; F ig. 3 is a section taken on the line 3-3 of Fig. 2; Fig. 1 is a fragn'ientary sectional view taken on line -t-ilof Fig. 3; and Fig. 5 is a fragmentary sectional view taken on line 55 of Fig. 3.

in all the views, like parts are designated by the same reference numerals.

The numeral 1 designates a phonograph L'iotor cabinet which is provided with a standard serving as a bearing for the shaft 3 of the mandrel 4, which latter is adapted to carry or support the record cylinder or blank For rotating the mandrel and the record cylinder or blank carried thereby, therc is provided the usual, rotatable spring barrel 3 of a. spring motor, the said spring barrel carrying a worm wheel 7 arranged to drive a worm bl on the shaft 9. The motion of shaft 9 may be transnntted to the mandrel through a. train of 10, 1.1, 12, 13,

the gear 10 being secured to the shaft 9 and the gear 13 to the mandrel shaft 3. The gear 11 is preferably secured to and carried by'thc usual feed screw shaft 14 by which the usual sound bOX support (not shown) may be fed along the record or blank 5 in a well known manner. The shaft 14L is supported within a hearing 15 on the cabinet 1 and a similar bearing adjacent the opposite end of the cabinet. The gear 12 is rotatably supported from the standard 2, as by a headed pivot pin 16. The shaft 14 has secured thereto a worm gear- 17 meshing with a worm 18 on the governor shaft 19. The governor shaft has mounted thereon the

usual collars

20 and 21, the former being firmly secured to the governor shaft and the latter being slidable longitudinally on said shaft. The collar 21 is provided with friction disk 22 and is connected to the collar 20 by the usual governor springs 23 weight ed as shown at The ends of the governor shaft 19 are preferably reduced in diameter, as shown at 19, and are rotatably supported in bearings and 25" mounted in the cabinet 1. A brake shoe 26 of felt or other suit-able material is carried by lever 27 and is arranged to bear upon the friction or brake surface of the disk 22 with varying amounts of friction, so that the phonograph motor and "mandrel may be held stationary or may be permitted to operate at the desired speed.

My improved accelerating means, hereinbefore referred to, preferably comprise a ratchet wheel 28 secured to the shaft 19 and a ratchet member 29 having a toothed portion arranged to coiiperate with the teeth of the ratchet wheel 28. The member 29 is pivoted, as at 30, to a laterally extending or offset portion 31 of a lever or arm 32, which is pivoted, as by a. screw 33, to' the casing or cabinet 1. A spring 34 tends to press the member 29 toward the ratchet wheel 28, the movement of the said member toward the ratchet wheel being limited by pin 35 mounted in the offset portion 31 of the levcr The position of the pin 35 is such that when the lever 32 and the member 29 are raised from the position shown in Fig. 1, the teeth on the member 29 are located in proper position for operative engagement with the teeth on the ratchet wheel 28. A manually operable controlling or actuating lever 36 is provided with a pin 37 slidable in a longitudinal slot 38 in the ofiset part 31 of the lever 32. The lever 36, as shown, is pivoted to the casing 1 by screw bolt 39 and is provided with forwardly extending tabs said pin and the lever 32 being such as to permit the manual movement of the said pin in the slot 43 while at the same time preventing the said pin from being moved out of its adjusted position by the lever 27.

The lever 27 is preferably pivotally supported upon the screw 33 by which the lever 32,

as hereinbefore stated, is likewise supported. A coiled spring 44 encircles the hub 27 of the lever 27 and engages at its ends the pin 42 and the lower end of the lever 27, the said spring tending to move lever 27 in the proper direction to cause the brake shoe 26 to be carried away from the friction disk 22. The upper portion of the lever 27 has an ofiset portion 45 arranged to be engaged by the ad usting screw 46 to limit the movement of the brake shoe 26 away from the friction disk 22 and thereby control the speed of rotation of the motor and the mandrel 4. The screw 46 is adjustable in the casing or cabinet 1 to regulate the speed of operation of the motor.

With the parts in the position shown in Fig. 1, the brakeshoe 26 engages the friction disk 22 sufficiently firmly to prevent opera-tion of the motor. If now the tab 40 is given a rapid thrust downwardly, the lever 36 through the pin and slot connection 37 38 moves the lever 32 upwardly, whereby the pin 42 is immediately moved away from the lever 27 and the spring 44 causes brake Shoe 26 to be carried away from the friction disk 22 sufiiciently to permit. the operation After the release of the motor, the continued upward movement of lever.32 causes the member 29 to rotate the ratchet wheel 28, and as the upward movement ofthe lever 32 is comparatively rapid,

- the movement imparted to the ratchet 28 and to the motor and mandrel is likewise .correspondingly rapid. The rapid downward thrust on the part 40 accordingly causes both the release of the governor brake 26 and the rapid starting of the motor,- the mandrel 4, and the cylinder 5. By pressing the tab 41' downwardly, the lever 32 may again be returned to its lower position in which the pin 42 engages the lever 27 so as to hold the brakeshoe 26 in firm con tact with the disk 22 to prevent operation accelerating said driving means,

of the motor and the parts driven thereby. The downward movement oi the lever 32 also causes the part 29 to be carried back to the position shown in Fig. 1, after which the operations hereinbefore described may be repeated.

\Vhile I have shown the preferred embodiment of my invention, I do not wish to be understood as limiting myself to the same, as my invention may be embodied in numerous other forms and may be modified in many ways without departing from the spirit thereof.

What I claim as new and desire to protect by Letters Patent of the United States is as follows:-

1. In a device of the class described, the combination of a support, driving means, and means provided with a single controlling member for rendering said driving means operative to drive said support and for accelerating the movement of said support, substantially as described.

2. In a device of the class described, the combination of supporting means, driving means therefor, means for holding said driving means inoperative. and means provided with a single controlling member for rendering said holding means inoperative and for accelerating said driving means, substantially as described.

3. In a device of the class described, the combination with supporting means, driving means therefor, a brake for holding said driving ineans inoperative, and means provided with a single controlling member for rendering said brake inoperative and for substantially as described.

4. In a device of the class described, the combination of supporting means, driving means therefor, a speed governor having means for holding said driving means inoperative, and means provided with a single controlling member for rendering said holding means inoperative and for accelerating said governor, substantially as described.

5. In a device of the class described, the combination of supporting means. driving means therefor, means for holding said driving means inoperative, means comprising a ratchet device for accelerating said driving means, and means for rendering said holding means inoperative and for operating said accelerating means, substantially as described.

6. In a device of the class described. the combination of supporting means, driving means therefor provided with aspeed governor, means coacting with said governor to accelerate said driving means, and a manually operable actuating member for said accelerating means, substantially as described,

8. In a device of the class described, the combination of supporting means, driving means therefor provided with a speed governor, and ratchet means coacting with said governor to accelerate said driving means, substantially as described.

9. The combination with' movable supporting means, of means for accelerating the movement of said supporting means, said accelerating means comprising a ratchet wheel, a ratchet, and means yieldingly pressing said ratchet against said ratchet wheel, substantially as described.

10. The combination with a support, of driving means for said support provided with a. speed governor havinga brake surface and a brake shoe, means comprising a ratchet device for accelerating said driving means, and means 'for actuating said acceleratmg means and causing said brake shoe to be moved away from said brake surface to permit operation of s i driving means, substantially as describ d.

. 1' Copies of this patent 'me? be obtained for 11. In a device of the, class described, the

combination of a support, driving means therefor. means for holding said driving means inoperative, and means having a single controlling member for rendering said holding means inoperative and for ac-' cclerating said driving means or for rendering said holdingmeans operative, substantially as described.

12. The combination with asupport, of driving means for said support provided with a speed governor having a brake surface and a brake shoe, means comprising a ratchet device for accelerating said driving means, and means for moving said brake shoe away from said brake surface and for actuating said acceleratingmeans or for moving said brake shoe against said brake surface and arranging said ratchet device in position. for operation, substantially as de scribed.

This, specification signed and witnessed Witnesses:

Wmmlm A. HARDY, MARY J. ILAIDLAW.

five cents each, by addressing the Commissioner of Barents. Washington, D. C."