US1359920A

US1359920A - Dynamo suspension

Info

Publication number: US1359920A
Application number: US42696A
Authority: US
Inventors: Willard F Richards
Original assignee: Symington Gould Co
Current assignee: Symington Gould Co
Priority date: 1915-07-30
Filing date: 1915-07-30
Publication date: 1920-11-23
Anticipated expiration: 1937-11-23

Description

W. F. RICHARDS.

DYNAMO SUSPENSION.

APPLICATION FILED JULY 30.1915.

Paten ted Nov. 23, 1920.

2 SHEETS-SHEET I.

' W. F. RICHARDS.

DYNAMO SUSPENSION, APPLICATION FILED JULY 30.1915.

1,359,9, Patented Nov. 23, 1920..

2 SHEETS-SHEET 2.

a/M%MM A TTOR/VEYS UNITED STATES PATENT OFFICE.

WILLARD F. RICHARDS, OF BUFFALO, NEW YORK, ASSIGNOR TO GOULD COUPLER- GOMEANY, A CORPORATION OF NEW YORK.

.DYN AMO SUSPENSION.

- 1'0 all whom it may concern dent of Buffalo, county of Erie, State of New York, have invented certain new anduseful Improvements in Dynamo Suspensions, of which the following is a specification.

My invention relates to improvements in suspensions for dynamos driven from a car axle, such dynamos being commonly used for lighting railway cars. The inain object illustrate the arrangement. Fig. 1 is 'a dey j of my invention is to provide a simple and efficient arrangement for 1 supportingi "the dynamo, which will be easily accessible for inspection and repairs. Further objects,,

features and advantages will more clearly appear from the detailed description given below, taken in connection with the accompanying drawings which form a part of this specification. f

In the drawings Figure 1 is a side view of part of a car with my invention in one form applied thereto, certain parts being broken away and shown in sectionto more clearly .tail illustrating the method of securing the carrying frame to. the supporting frame. Fig. 2 is a section taken on the line 22 of Fig. 1. Fig. '3 is a similar view looking at the dynamo in the opposite direction. ig. 4

' is a detail'view of the dynamo suspension --tions.

- underneath side of the car body by being con-.

shown in-Fig'. 1, illustrating the parts in a different position. Figs. 5, 6 and 7 are views similar to Fig. 4, but illustrating modifica- Referring to F igs.- 1 to 4, 1 represents a car body havinga center beam 2. One of the car axles is shown at'3, provided with a pulley 4,over which passes a belt 5 driving the dynamo 6. A frame for supporting the dynamo comprises a member 8, secured to the nected to cross beams by bolts 9 and stirrup member 10, secured to the member 8 by means of bolts 11, and also a cross member 12, one end of which is bolted to the stirrup 10, by bolts 13, and the other end of which is bolted to the center beam 2 by means of bolts 14. Adjustably secured ,on the memv ber 12 is a carrying frame 15, having depending lugs; carrying apivot rod '16, from which the dynamo 6is pivotally suspended by means oflugs 17 rigid with the dynamo. The carrying frame 15 -is secured to the Specification of Letters Patent.

dynamo by a link 21.

Patented Nov. 23, 1920.

' Application filed July 30, 1915. Serial No. 42,696.

cross member 12 by means of bolts 18 passing through slots in the member 12 and member 12 'and may be secured in any of its adjusted positions by. tightening the bolts 18. The frame 15 firmly held in adjusted position by means of set screws 19. Carried by the frame 15 is a bell crank lever 20, the lower end of which is connected with the Connected to the short arm ,of the bell crank lever 20 is a rod 22, passing through an-opening in the depending arm 23, integral with the frame 15. A coilspring 24 surrounds the rod 22 and is compressed by means. of a hand nut 25, screw threaded on the rod 22 against an abutment disk 26 loose on the rod 22 and bearing agaiiist-the arm 23. It will be clear from Fig. ll'thjat-the compressed spring 24 actsas a tehsionfdevice, tending to swing the bell crankleve'r20 to the right, thereby tending to move the dynamo away from the car axle and maintain te'nsionon the belt 5. The tension which the spring exerts may be adjusted by turning the hand nut 25. If it is desired to relieve the tension on the belt or make the belt slack, in order to remove it or in order that the dynamo may be motored for testing, the dynamo 6- is moved toward the axle in a direction to compress the spring 24, and when the pivot 27 by which the rod, 22 is connected to the short arm of the bell crank 20, passes the dead center, the spring will then tend to force the dynamo toward the car axle. At the same time the long arm of the bell crank 20 and link 21 will pass the dead center, as shown in Fig. 4, so that the dynamo will be locked in the position shown in Fig. 4,

-independently of the spring 24. That is,

against the frame 15. The bell crank lever 20 and link 21 thus form a toggle lever arrangement for moving the dynamo about its pivot toward and from the axle, the tension device normally tending to cause the toggle bell crank lever 30 is pivoted to the carrying frame 15, but the arms of the bell crank are arranged in a somewhat different position relatively to one another. Thus the rod 31 pi ed to the end of the short arm of the bell crank normally extends above the pivotal center 32 of the bell crank and passes through an opening in a depending arm 33 of the frame 15 and has a spring 34su1- rounding its outer end and compressed against the arm 33 by means of a hand nut 35, the bell crank being connected to the dynamo 6 by means of a link 36. The spring 34 being compressed by the nut 35, tends to swing the bell crank so as to pull the dynamo away from the car driv ng axle and thus maintain the proper tension on the belt.

In the modification shown in Fig. 6, the toggle, comprising

links

40 and 41, is used for moving the dynamo toward and from the car axle. One end of the link 40 is pivoted to the frame 15 and one end of the link 41 to the dynamo, the other ends of the two links being pivoted to one another bymeans of pivot pin 42,'to which is also pivoted a rod 43 passing loosely through, a member 44, journaled in'a depending arm 47 at 48. The'coil spring 45 surrounds the outer end of the arm 43 and is pressed against the member 44 by means of a hand nut 46 screw threaded on the outer end of the rod 43. The spring 45 therefore acts as a tension device tending to pull the pivot 42 toward the arm 47 and thus force the link 41 downwardly by reason ofthe toggle action of the

links

40 and 41, and so tend to force the dynamo 6 away from the car axle to maintain proper tension on the belt.

In the arrangement shown in Fig. 7,

toggle links

50 and 51, pivotally connected together and also pivotally connected to the frame 15 and dynamo 6 respectively, are acted upon by a rod 52, one end of which is pivoted to the common pivot of the

links

50 and 51, and the other end of which passes through a depending arm 53 on the frame 15. A coil spring 54 has one end bearing upon a member 55 which bears upon the member 53. .The springis compressed by means of a hand nut 56, screw threaded on the inner end of the rod 52. The spring 54 therefore acts on the

toggle links

50 and 51 to tend to force the link 51 downwardly and In the arrangement shown in Fig. 5, the

the dynamo away from the car'axle to maintain the tension on the belt 5. By meansof particular embodiments of the invention, I

do not desire to be limited to such details except as clearly pointed out in the appended claims, since many changes and modifications may well be made without departing from the spirit and scope of my invention in its broader aspects.

What I claim as new and desire to secure by Letters Patent is:

1. A dynamo suspension for cars, having in combination with the car and its axle a supporting member secured to a car body, a

dynamo pivotally suspended therefrom, a belt driving the dynamo from the car axle,

a toggle arrangement for moving the dynamo. about its pivot toward and from the ear axle and a tension device acting on said toggle arrangement and tending to swing the generator away from the driving axle,.

said toggle arrangement being adapted to operate past its dead center-in opposition to said tension device.

2. A dynamo suspension for cars having in combination with the car and its axle, a

dynamo pivotally suspended, a belt driving the dynamo from the car axle; a toggle arrangement for moving the dynamo about its pivot toward and from the car axle and a tension device acting on said toggle arrangement and tending to-swing the generator away from the driving axle,

said toggle arrangement being adapted to:

operate past its dead center.

3. A dynamo suspension for cars, having in combination with the car and its axlea dynamo pivotally mounted, a belt driving said dynamo from a car axle, and a tension device normally tending to swing the dynamo away from the car axle but acting to force the dynamo toward the car axle upon the dynamo being moved a certain distance toward the car axle and positively lock the dynamo in such position toward the axle and with the belt slack.

4. A dynamo suspension for cars having in combination with a car andits axle, a dynamo having lugs rigid therewith, a belt driving the dynamo from the car axle, a frame rigid with the car body, said lugs being pivotally connected directly to said frame whereby the dynamo is pivotally suspended from the car body, a pivoted toggle lever for swinging said dynamo about said pivotand a spring acting on said toggle lever and tending to swing the dynamo away from the axle and means for adjusting the tension of said spring.

5. A, dynamo suspension for cars having in combination with the car and its axle, a dynamo pivotally suspended, a belt driving the dynamo from the car axle, a toggle lever arrangement for swinging the dynamo toward and from the car axle,'and a tension device acting on the toggle lever arrangement to normally swing the dynamo away from the car axle, but acting to force the dynamo toward the. car axle upon the dynamo being moved a certain distance toward the car axle, and positively lock the dynamo in such position with the'belt slack and with the toggle lever arrangement holding the dynamo in such position independently of the tension device. i

6; A dynamo suspension for carshaving in combination with the car and its axle, a dynamo pivotally mounted, a belt driving the dynamo from the car axle, a lever arrangement for swinging the dynamo toward and from the car axle, and a sprlng acting on the lever arrangement to normally swing the dynamo away from the car axle, but

acting to force the dynamo toward the car axle-upon the dynamo being moved a cer-' tain distance toward the car axle, and positively lock the dynamo in such position with I the belt slack and with the lever arrangement holding the dynamo in such independently of the spring.

7. A dynamo suspension for cars having in combination with the car and its axle, a dynamo pivotally suspended from the car body, a belt driving the dynamo from the car axle, a toggle lever arrangement for swinging the dynamo toward and from the car axle, anda tension device acting on the toggle lever arrangement to normally swing the dynamo away from the car axle, but acting to force the dynamo'toward the car axle upon the dynamo being moved a certain distance toward the car axle, and positively lock the dynamo in such position with the belt slack and with the toggle lever arrangement holdingthe dynamo insuch position independently of the tension device, and a nut for adjusting the tension ofthe tension device.

8. A dynamo suspension for cars. having in combination with the car and its axle, a dynamo pivotally mounted from the car position body, a belt driving the dynamo from the car axle, a .lever arrangement for swinging the dynamo toward and from the car axle, and a spring acting on the lever,arrangement to normally swing the dynamo away from the car axle, but acting to force the dynamotoward the car axle upon the dynamo being moved-a certain distance toward the car axle, and positively lock the dynamo in such position with the belt slack and with the lever arrangement holding the dynamo in such position independently. of the spring and means foradjusting the tension of the spring,

body, a carrying'frame secured to the supframe around a single axis, and a compressed frame.

9. A dynamo suspension for cars having, in combination with the earl and 1ts axle, 3:5.

. supporting frame secured toj' the underneath side of the car body, a car ing frame adacting to force the dynamo toward the car axle upon the dynamobeing moved a certain distance toward the car axle, and -positively lock the dynamo in such position with the belt slack and with the toggle lever arrangement holding the dynamo in such-position independently ofthe tension device. 35

10.3A suspension for dynamos driven from .car axles having in combination with the car and its axle, a supporting frame secured to the underneath :side of the car porting frame and adjustable with respect thereto toward and from the driving car axle, a dynamo having lugs rigid therewith, normally loosely pivoted to said carrying spring tending normally to swing the dynamo away from the car axle. 1'1. suspension for dynamos driven from car axles having in combination with the car and its axle,,a supporting frame secured to the underneath side of the car body, a carrying frame secured to-the supporting frame and adjustable .with respect thereto toward and from the driving -car axle, a dynamo having lugs rigid therewith, norma-lly loosely pivoted to said carrying frame around .a single axis, a belt driving the dynamo from the driving car axle, a spring tending normally to swing the dynamo away from the car axle, and means for adjusting the tension of said spring. I

12. A suspension for dynamos driven from car axles, having in combination with the car and its axle, a center beamon the bottom of the car body, a detachable sup-v porting frame having one end secured .to said beam and the other end secured to the car body, acarrying frame adjustably se- .cured to said supporting frame and a dynasaid carrying mo supportedto swing from 13. A dynamo suspension having in combination with acar and its axle, a frame rigidly secured to the car body, a dynamo having lugs rigid therewithand pivoted to said frame whereby the dynamo is pivotally I suspended from the car body, a belt driving the dynamo from the car axle, a tension de vice comprising a sprin tending to swing the dynamo away from t e driving'axle, and 130.

means for adjusting the tension of said spring independently of the adjustment of said pivotal support, said tension device normally tending to swing the dynamo away "from the car axle, but acting to force the dynamo toward the car axle upon the dynamo being moved a certain distance toward the car axle.

14. A dynamosuspension having in comb nation with a car and its axle, a frame rigidly secured to the carbody, a dynamo- Y devicev comprising a spring under compres- 1,a59,92o 7 i sion, tending to swing the dynamo away from the driving axle, and means for adjusting the tension of said spring independently of said pivotal support, said tension device normally tending to swing the dynamo away from the car axle, but acting to force the dynamo toward the car axle upon the dynamo being moved a certain distance toward the car axle, and positively lock the dynamo in such position toward the driving axle with the belt slack and inde endent of the spring.

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

WILLARD F. RICHARDS.