US1309631A - Frederick hymans - Google Patents

Description

F. HYMANS.

GOVERNOR.

APPLICATION FILED AUG-26.1916.

1,309,63 1 Patented July 15, 1919.

J /L Wg W.

FREDERICK HYMANS, OF GLEN RIDGE, NE COMPANY, OF JERSEY CITY, NEW JERS W JERSEY, ASSIGNOR TO OTIS ELEVATOR EY, A CORPORATION OF NEW JERSEY.

- GOVERNOR.

Specification of Letters Patent.

Patented July 15, 1915-).

Application filed August 26, 1916. Serial No. 117,010.

To all whom it may concern:

Be it known that I, FREDERICK IIYMANS, a citizen of the Netherlands, residing in Glen Ridge, in the county of Essex and State of New Jersey, have invented a new and useful Improvement in Governors, of which the following is a specification.

My invention relates to an improvement in speed governors, and is designed particularly for use in elevator service for the purpose of releasing a safety device in the event of the elevator car exceeding a certain predetermined speed. The principle employed is inertia, and I have provided a pendulum or weight carried on one end of a flat spring which weight engages a certain part of the governor when the latter is rotatin Should the car speed exceed the predetermined amount, the mechanism will be set into operation to release gripping means for grasping the governor rope to apply a safety device. IVith my arrangement I have done away with bearings and 'pins so that the action of the governor is not dependent in any sense upon the care which may be taken of the governor after it is installed. The advantage of such an arrangement is obvious, as after once being installed in a building no attention need to be paid to it at all as is the case with governors now generally in use for the purpose for which this governor is designed.

In the accompanying drawings, Figure 1 is an elevation of the governor with certain parts in section, and Fig. 2 is aview at right angles to that of Fig. 1.

Referring to the drawings in detail, 1 designates a governor sheave mounted for rotation on a shaft 2, the latter being carried by any suitable base or support 3. The governor rope 4, which is wrapped around the sheave 1, is fastened to suitable mechanism carried by the car, not shown, which mechanism will be set into operation to apply a safety when the car speed exceeds a predetermined limit. A support 5 is also carried by the base 3 and to it is secured by means of bolts 6 and 7 a flat spring 8, the latter carrying at its lower end a weight 9. Carried by the weight 9 is a roller 10, mounted for rotation on a shaft 11. A lever 12 having a projection 13 is mounted to swing on the said shaft 11. The roller 10 is adapted to engage the face of a cam 1-1 carried on the shaft 2 and rotating with governor sheave 1. This cam is shown as having two depressions 1 1. A spring 15 having one end fastened to the weight 9 and the other end to the lower end of the lever 12 is provided to hold the lever 12 normally in the position shown in Fig. 1. Members 1.6 secured to the sheave 1 and of which I have shown two are provided, these members being adapted to engage the projection 13 formed on the lever 12 when the car speed is excessive. There should be the same munber of members 16 as there are depressions 14 in [he cam 14, the number being limited only by space conditions.

The action of the governor is as follows: Under ordinary running conditions the pen dulum or weight i) has a swinging movement due to the roller 10 'lollow'ing the irregular face of the cam 14, and by reason of the shape of the cam and the location of the members 16, the members 16 will pass by the projection 13 formed on the lever 12. Should, however, the car be running at an excessive speed, and therefore the governor sheave 1, the roller due to the inertia of the eight or pendulum 9 will not follow the irregular face of the cam 14, but will ride past the depressions 1 1, and the projection 13 of the lever 12 will be engaged by some one of the members 16. The lever will therefore be rocked about the shaft 11 and its lower end will. engage a bell crank or trip 17 and the same will rotate about its pivot 18 to release a segmental gear 19 which meshes with a similar gear 20 and the same will rotate by gravity about their respective shafts 21 and and cause the governor rope to be gripped, and the latter will then operate the mechanism carried by the elevator car to slow up or stop the same.

From the foregoing description it will be seen that I have provided a governor which is very simple both in structure and operation and at the same time effective.

It is to be understood that the governor rope may be connected to any desired mechanism and that the gripping means 19 and 20 may be of any desired type, the type here shawn being merely by way of illustration to show one embodiment of my invention. I desire therefore not to be limited to the the exact details and arrangement of parts herein shown, as others skilled in the art might make various changes therein without departing from the spirit and scope of my invention.

What I claim is new and desire to secure by Letters Patent of the United States is 1. In a governor, the combination of a rotatable member, a governor rope movable therewith, a member carried by said rotatable member and rotating therewith, means to-retard the rope and an inertia controlled member engaging the rotatable member and adapted to operate the retarding means to retard the governor rope.

2. In -a governor, the vcombination of a a governor sheave, a governor rope running over said sheave, a member carried by said sheave, means to retard the rope and inertia controlled means adapted to engage said member carried by said sheave when the speed of the governor exceeds a predetermined amount to operate the retarding means to retard the governor rope.

3. In a governor, the combination of a governor sheave, a governor rope running over said sheave, a member rotatable with the governor sheave, means to retard the rope an inertia controlled means adapted to engage said rotatable member, and a member carried by said governor and adapted to be engaged by the inertia controlled means when the latter is out of engagement with the said member rotating with the governor sheave to operate the retarding means to retard the governor rope.

4. In a governor, the combination of a governor sheave, a governor rope running over saidsheave, a cam rotating with the governor sheave, an inertia-controlled member engaging said cam normally, means operable to retard the motion of the governor rope, and means to engage the inertia controlled member when the speed of the governor exceeds a predetermined amount to set into operation the means for retarding the governor rope.

5. In a governor, the combination of a governor sheave, a governor rope running over said sheave, a cam rotatable with said governor sheave, an inertia controlled member normally engaging said cam, a pivoted member carried by. said inertia controlled member, and means carried by the governor sheave adapted to engage said pivoted memher when the speed of the governor exceeds a predetermined amount to retard the governor rope. a

6, In a governor, the combination of a governor sheave, a governor rope running over said sheave, a cam rotatable withsaid governor sheave, a weighted member having a pendulum movement, suspension means for said weighted member, said weighted member normally engaging the face of said cam, and means carried by the weight and by the governor sheave adapted {O engage each other due to the inertia of the weighted member when the speed of the governor exceeds a predetermined limit, to retard the governor rope.

7. In a governor, the combination of a governor sheave, a governor rope running over said sheave,a cam rotatable with said governor sheave, )2], weighted member, suspension means for said member comprising a spring, a roller carried by said weighted member adapted normally to engage the face of said cam, a member carried by said governor sheave and rotatable therewith, a lever carried by said weighted member normally out or" the path of said member carried by .the governor sheave, and in the path of said member when the speed of the governor exceeds a predetermined limit to retard the movement of the governor rope.

8. In a governor, the combination of a governor sheave, a governor rope running over said sheave, a cam rotatable with said governor sheave, a weighted member, sus pension means for said member comprising a spring, a roller carried by said Weighted member adapted normally to engage the. face of said cam, a lever also carried by said weighted member and adapted to rotate about a pivot, a spring resisting movement of the lever about its pivot, a member car} ried by the governorsheave and rotatable therewith adapted to engage said lever when the speed of the governor exceeds a. predetermined amount,.the lever beingswung into the path of said"member' cafrid by thesheave dueto the inertia of theweighted member and the parts carried thereby.

In testimony whereof I have signed my name to this specification in the presence-of two subscribing witnesses. j

FREDERICK HYMANS.

Witnesses: Y

ERNEST L. GALE, J r., JAMES G. B THELL.

Copies of this patent may be obtained for fivecents each, by addressing the Commissioner of Patents," Washington, D. C. r

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