US743465A - Speed-governor for spring-motors. - Google Patents

Description

No. 743,465. PATENTED NOV. 10, 1903;

P. R. DAUDT.

SPEED GOVERNOR FOR SPRING MOTORS.

APPLICATION FILED JULY 6. 1903. NO MODEL. 2 SHEBTS SHBET 1.

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No. 743,465. PATENTED NOV. 10, 1903.

P. R. DAUDT. SPEED GOVERNOR FOR SPRING MOTORS.

V APPLICATION FILED JULY 6, 1903.

N0 MODEL. 2 SHEETS-SHEET 2.

Fatented November 10, 1903.

PATENT. OFFICE.

FRANK RlOHARD DAUDT, OF SCOTIA, NEBRASKA.

SPEED-GOVERNOR FOR SPRING-MOTORS.

SPECIFICATION forming part of Letters Patent No. 743,435, dated November 10, 1903.

Application filed July 6, 1903- Serial No. 164,446. (No model.)

To all whom, it may concern.-

Be it known that LFRANK RICHARD DAUDT,

a citizen of the United States, residing at Sco-' tia, in the county of Greeley and State of Nebraska, have invented certain new and use ful Improvements in Speed- Governors for Spring-Motors, of which the following is a specification.

This invention has relation to motors for driving light machinery and deriving their force from a motor-spring.

The purpose of the invention is to combine with the train of gearing controlling means of novel formation whereby the speed may be regulated or the motor stopped at will.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for efiecting the result reference is to be had to the following description and drawings hereto attached.

While the essential and characteristic featu res of theinvention are susceptible of modi-' fication, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of a spring-motor embodying the invention. Fig. 2 is a top plan View thereof. Fig. 3 is a section on the line 3 3 of Fig. 5 looking to the right, as indicated by the arrows. Fig. 4 is a view on the line 4 4 of Fig. 5 looking to the right. Fig. 5 is a transverse section on the line 5 5 of Fig. 2, showing the parts on a larger scale.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters. I

The shaft 1, with which the speed-controlling mechanisms cooperate, may be driven from the motor-spring 2 by a train of gearing comprising any desired number of elementssuch as shafts, gear-wheels, and pinionsarranged in any determinate relation, according to the specific use for which the motor is designed. The winding-shaft is indicated at 3 and receives the gear-wheel 4, loose thereon, ratchet-wheel 5, tight therewith, and gearwheel 6. The gear-wheel 4 is provided with pawl 7, adapted to cooperate with the teeth of the ratchet-wheel 5 to admit of winding the spring 2 in the accustomed manner. The

spring 2 is of the coil type and has one end secured to the winding-shaft 3 and its opposite end attached to a cross-piece 8 of the frame. The gear-wheel 6 is in mesh with pinion 9, secured to crank-shaft 10, by means of which shaft 3 is turned to wind spring 2 when required. Shaft 11 is provided with pinion 12, in mesh with gear-wheel 4, and with gear-wheel 13, in mesh with pinion14 of shaft 15. The gear-wheel 16, secured to shaft 15,

.is in mesh with pinion 17 on shaft 18, which is provided with gear-wheel 19, in mesh with pinion 20 on the shaft 1. The several shafts 1, 3, ll, 15, and 18 have a parallel arrangement and are journaled at their ends in side plates 21 and 22 of the frame, said side plates being connected atsuitable points by tie-rods or cross-pieces 8. The power is taken from one of the shafts, as 15, the latter being provided with a crank'wheel 23, which is connected by pitman 24 with the walking-beam 25, fulcrumed to standard 26, red 27 connecting the opposite end of the walking-beam with the pump or other mechanism (not shown) adapted to be driven by means of the motor.

A brake is provided for stopping the motor or modifying its speed when required and consists of the friction-wheel 28, keyed to shaft 1, and brake-band 29, having one end rigidly attached to the frame and adapted to have its opposite end adj ustably secured to said frame, so as to apply the brake with greater or less force. The brake-band 29 consists of a spring-strip having an end portion bent to encircle the brake-wheel 28 and having its opposite end portion extended to form a handle 30, which is adapted to engage with one of the teeth of the notched bar 31, secured to aside of the frame in proximal relation to the said brake-wheel.

The means for automatically controlling the speed of the motor consist of plate or disk 32, secured to the shaft 1, friction-wheel 33, attached to the frame, and weighted arms 34, pivoted to the disk 32 and adapted to cooperate with the friction-wheel 33, so as to offer greater or less resistance to the movement of the motor, according to the developed speed. The weighted arms 34 are pivoted to the disk 32 at 35 and are provided at their inner ends with spring-shoes 36, which are adapted to grip the friction-wheel 33 with.

too

- speed.

greater or less force, depending upon the speed of the motor, the tension of the springs 37, and the weight 38 at the outer ends of the arms34. A spring 37 is provided for each Weighted arm and is connected at its inner end to the disk 32 and has its outer end portion threaded, as shown at 39, and provided with a set-nut 40, threaded thereon, for Varying the tension of the spring. The weighted arms 34 are preferably formed of strips of spring metal bent into the shape substantially as shown and having their inner end portions recnrved, as shown at 41, to increase the resiliency of the shoes 36. The metal strips are doubled upon themselves and bent to form eyes 42, which receive the pivot-studs 35, upon which said arms are mounted for oscillatory movement. Stops 43 limit the inward movement of the weighted arms at their outer or free ends. After the spring 2 has been wound and the brake released the train of gearing will be set in motion and the walking-beam 25 oscillated by reason of its pitman connection with the crank-wheel 23. The tension of the springs 37 having been regulated to cause the motor to run at a predetermined speed, any excess of speed will cause the weighted arms to operate and the shoes thereof to grip the friction-wheel 33, thereby increasing the resistance or load of the motor and correspondingly decreasing the The motor is caused to run evenly by the fly-wheel 44, secured to the outer end of the shaft 1.

Having thus described the invention, what is claimed as new is 1. In a motor of the type described, the

combination of the shaft, means for imparting movement to said shaft, a disk secured to the shaft, a friction-wheel concentric with said disk, weighted arms pivoted to the disk, and spring-shoes at the inner ends of said weighted arms adapted to cooperate with the friction-wheel to regulate the speed of the motor, substantially as set forth.

2. In a motor of the type described, the combination of the shaft, means for imparting movement to said shaft, a disk secured to the shaft,a friction-wheel concentric with said disk, weighted arms pivoted to the disk, tension-springs between said disk and weighted arms, means for regulating the tension of said springs, and spring-shoes at the inner ends of and forming a part of the weighted arms for cooperating with said friction-wheel, substantially as specified.

3. In a motor of the type described, the combination of the shaft, means for imparting movement to said shaft, a disk secured to the shaft, a friction-wheel concentric with said disk, weighted arms pivoted to the disk, each arm formed of a spring-strip doubled upon itself and bent to provide a bearing-eye and recurved and terminating in a shoe for cooperation with said friction-wheel, and tensionsprings between the Weighted arms and the disk, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK RICHARD DAUDT. [11.8.]

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