US1406250A - Mctor - Google Patents

Description

IVL VICTORSOHN.

MOTOR. APPLICATION FILED OCT. 20, HQ-RENEWED JULY 21.1921.

1 ,406,250 Patented Feb. 14, 192 2.

M. VICTORS-OHN.

MOIOR.

. APPLICATION FILED OCT. 20.1919. RENEWED JULY 21. 192i. 1,406,250.

Patented Feb. 14, 1922.

a SHEETS-SHEET 2,

Invenfor:

Jaw

M. VICTORSOHN.

MOTOR. APPLICATION FILED OCT. 20,1919. RENEWED JULY 2!. 1921.

Patented Feb. 14, 1922.

3 SHEETS-SHEET 3- lnuenzor.

UNITED STATES I PATENT OFFICE.

MORRIS VICTOBSOHN, OF NEW YORK, N. Y.

MOTOR.

Patented Feb. 14:, 1922.

Application filed October 20, 1919, Serial No. 331,769. Renewed July 21, 1921, Serial No. 486,533.

To all whom it mag concern:

Be it known that I, Morris VICTORSOI-IN, a citizen of the United States, residing at New York city, in the county of Kings and State of New, York, have invented certain new and useful Improvements in Motors, of which the following is a full, clear, and exact specification.

This invention relates to motors for driving various kinds of mechanism but is especially designed and adapted for rotating the turntables of phonographs or talking machines. I

The principal object of the invention is to provide a mechanical motor for this purpose which does not, require the use of springs or other devices which sooner or later wear out, but which always has the force or motive power present to rotate the turntable a suflicient number of revolutions to play arecord. Another object is to provide means for regulating the length of time the motor will operate so as to adapt it to play records of different sizes and stop at or near the end of the record for which it is adjusted. A further object is to provide convenient means for setting or resetting the motor after one operation ready for another operation, Other objects will appear as the description proceeds. i

The invention will be first hereinafter described in connection with the accompany-j ing drawings, which constitute part of this specification, and then more specifically defined in the claims at the end of the description. a I

In the accompanying drawings, wherein similar reference characters are used to designate corresponding parts throughout the several v1ews:-

Figure 1 is an elevation of the motor and its driving connections to a turntable, the same being arranged in a suitable casing which is shown in section.

Figure 2 is a section "on the line II-'II of Figure 1 showing the motor in set or reset position in solid lines and in spent position in dotted lines. V

Figure 3 is a detailed view of the brake mechanism for regulating the speed of the motor.

Figure 4 is a detailed view of the means for adjusting the motor stop to suit records of different sizes.

Figure 5 is a section through the main gears of the motor showing the ball bearing In the drawings 1 indicates a casing for V the motor and 2 a compartment reserved therein for storing records or other pur poses. In the remaining portlon of the easing and extending between suitable vertical supporting members 3 and I is a horizontal main bearing shaft 5 on which is mounted a main gear 6. On opposite sides of said gear 6 and suitably connected to turn therewith are ratchets 7 and 8 and at the outer sides of said ratchets are disks 9 and 10 which are fixed against rotation and have grooves in their peripheries to receive ball bearings 11 which are also engaged with supplemental grooves in rings 12 and 13 thus mounted to turn with little friction on said ball' bearings. Attached to said rings is a yoke 1% extending radially from the shaft 5, and from the end of said yoke an arm 15 extends in generally the same direction.

From the end of said arm is supported a weight carrier 16 which may be in the form of a cylindrical container for shot or weights 17 as shown in Figure 6. a

The main gear 6 meshes with a small gear 18 on an auxiliary horizontal shaft 19 and fixed to a larger gear 20 meshing in turn with a gear 21 on another horizontal shaft 22, as best shown in Figure 1. The shaft 22 also carries a bevel pinion 23 which meshes with a horizontal bevel gear 24 on a vertical shaft 25 suitably supported between horizontal frame members 26 and 27, Said shaft 25 also carries a gear 28 fixed to turnwith the bevelgear 24 and meshing with a gear 29 on the turntable shaft 30 which extends between the frame members 26 and 27 and through the top of the casing 1 to support and rotate the turntable 81, Figure 1.

The gear 29 meshes with a pinion 32 on a shaft 33 which carries a brake drum 34, Figures 1 and 8. A brake band 35 is mounted around said drum and may be tightened or loosened thereon by a bolt 36 extending through the side of the casing 1 and having a head or handle 37 on its outer end to be conveniently grasped by the operator. The inner end of the bolt 36 has a head 38 engaging one outwardly turned end portion 39 of the brake band 35, while the other outwardiy turned end portion 4C0 of said band has a threaded passage therein to be engaged by a threaded portion 41 of the bolt, so that when said bolt is rotated in one direction the end portions 39 and 40 of the band will be drawn together so as to tighten it around the drum and reduce the speed of the motor and turntable, whereas the rotation of the bolt in the opposite direction will loosen the band on the drum and permit the motor and turntable to rotate at greater speed. The shaft 33 may also carry a counterbalance 42 of any suitable form or construction.

Referring again to the weighted arm 15, Figure 2, the same may be raised to the po sition indicated in solid lines by means of a treadle 43 pivoted at its inner end to a suitable support 44 and having its outer end projecting from the casing 1. To said treadle is pivotally connected a link 45 similarly connected to a bell crank lever 450 pivoted at 46 to the frame member 3 and having an arm 47 pivotally connected to a link 48 similarly connected to the weighted arm 15. It will thus be seen that when the treadle is depressed b the foot of the operator the weighted arm 15 is raised to the solid line position Figure 2. The yoke 14, on which said arm 15 is mounted, carries pawls 49 to engage with the ratchet wheels 7 and 8, so that the weight 16 on the end of the arm will in pulling said arm down to the dotted line position illustrated in Figure 2 rotate said ratchet wheels and with them turn the main gear 6, thus setting in motion the train of gears 18, 20, 21, 23, 24, 28 and 29 which serves to rotate the turntable 31. The rotation of the gear 29 of course turns the pinion 32 which is in mesh therewith, so

that the speed of the motor and turntable is governed by the adjustment of the brake band 35 around the drum 34 as already explained.

The number of revolutions of the turntable will, of course, depend upon the length of the sweep of the arm 15, and to regulate the motor to suit different sizes of records, means is provided for arresting the downward movement of the arm 15 at different points. Such means comprises a rod 50 mounted to slide in guides 51 on the inside of the casing 1, as shown in Figure 2, and a setting device for holding said rod with its lower end 52 at different levels so as to engage and arrest the treadle 43 at different points in its upward movement which takes place simultaneously with the downward movement of the weighted arm. Said rod is pivotally connected at its upper end to a lever 53 intermediately pivoted to a suitable bracket 54 and having its other end pivotally connected to an adjusting pin 55 extending up through the top of the casing 1 and having a handle or knob 56 on its upper end for convenient manipulation by the operator. The pin 5.5 has a series of notches 57 formed therein to engage with a tooth 58 fixed to the top of the casing, .and a leaf spring 59 is provided for pressing said pin towards said tooth, so as to normally hold the tooth in engagement with one of the notches in the pin. By grasping the handle or knob 56 the pin may, however, be moved away from the tooth to disengage any of the notches therefrom, after which said pin may be moved to bring another notch into engagement with the tooth. Such adjustment of the pin from one notch to another will alter the position of the lower end of the rod 50 thereby placing it at a level to arrest the upward movement of the treadle and downward movement of the weighted arm at or near the end of the particular size record it is desired to play.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. The combination with a member to be rotated, of a train of gears operatively connected therewith and including a main vertically arranged gear, a ratchet fixed to said main gear, a ball bearing support at'the side of said ratchet and main gear and having a groove in its periphery, a ring arranged around said ball bearing support and having a groove in its inner edge, balls interposed between the grooved edges of said support and ring, and a weighted arm mounted on said ring and carrying a pawl to engage the ratchet for actuating the gears.

2. The combination with a member to be rotated, of a train of gears operatively connected therewith and including a main vertically arranged gear, ratchets fixed to the opposite sides of said main gear, ball bearing supporting disks arranged at the outer sides of the ratchets and having grooves in their outer edges, rings arranged around said disks and having grooves in their inner edges, ball bearings interposed between said grooved edges of the disks and rings, a yoke attached to said rings, pawls carried by said yoke to engage said ratchets, and a weight on said yoke for actuating the gears.

3. The combination with a member to be rotated, of a train of gears o eratively connected therewith, a ratchet xed to one of said gears, an arm having the same pivot point as said ratchet, a pawl carried by said arm, a weight on said arm to actuate the gears by moving the arm downward, and mechanism for positively raising said arm to reset the device.

4. A mechanical motor comprising a vertical rotatable member, a ratchet fixed to the side of said member, an arm pivoted at the same point as the ratchet, a pawl carried by said arm to engage the ratchet, a weight on said arm for moving it downward, and a lever device for raising said arm.

5. In a mechanical motor, the combination with a vertical rotatable member, of a ratchet fixed to the side thereof, an arm pivoted at the same point as the ratchet, a pawl carried by said arm to engage the ratchet, a weight on said arm for moving it downward, a treadle, and lever connections between said treadle and arm for raising the latter.

6. In a mechanical motor, the combination with a vertical rotatable member, of a ratchet fixed to the side thereof, an arm pivoted at the same point as the ratchet, a pawl carried by said arm to engage the ratchet, a weight on said arm to move it downward, means for mechanically raising said arm, and an adjustable stop to engage said arm raising means for limiting the downward movement of the arm for the purpose specified.

7. In a mechanical motor, the combination with a vertical rotatable member, oi: a ratchet attached to the side thereof, an arm pivoted to the same point as the ratchet, a pawl carried by said arm to engage the ratchet, a weight on said arm to move it downward, a treadle operatively connected to said arm for raising the same, and an adjustable stop to engage the treadle for limiting the downward movement of the arm for the purpose specified.

8. In a mechanical motor, the combination with a vertical rotatable member, of a ratchet attached to the side of said member,

an arm pivoted to the same point as the ratchet, a pawl carried by said arm to engage the ratchet, a weight on said arm to move it downward, a treadle operatively connected to said arm for raising the same, a slide for limiting the movement of said treadle for regulating the downward movement of the arm for the purpose specified, a notched pin connected to said slide for adjusting the same, and a fixed tooth with which the notch in the pin may be engaged for retaining the slide in adjusted position.

9. In a mechanical motor, the combination with a vertical rotatable member, of a ratchet attached to the side of said member, an arm pivoted to the same point as the ratchet, a pawl carried by said arm to engage the ratchet, a weight on said arm to move it downward, a treadle operatively connected to said arm for raising the same, a slide for limiting the movement of said treadle to regulate the downward movement of the arm for the purpose specified, a pin connected to said slide and having a plurality of notches therein, a fixed tooth with which any one of the notches in the pin may be engaged, and a spring for normally retaining the pin with one of its notches in engagement with said tooth.

In testimony whereof I have signed my name to this specification.

MORRIS VICTORSOHN.

Images