US372280A - Means for controlling elevators - Google Patents
Means for controlling elevators Download PDFInfo
- Publication number
- US372280A US372280A US372280DA US372280A US 372280 A US372280 A US 372280A US 372280D A US372280D A US 372280DA US 372280 A US372280 A US 372280A
- Authority
- US
- United States
- Prior art keywords
- cables
- control
- valve
- elevator
- lever
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002965 rope Substances 0.000 description 4
- 210000003414 Extremities Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/04—Control systems without regulation, i.e. without retroactive action hydraulic
Definitions
- JOHN IRWIN VEEDER OF CHICAGO, ILLINOIS, 'AS SIGNOR TO THE CRANE ELEVATOR COMPANY, OF ILLINOIS.
- My invention relates to that class of valvecontrol apparatus in which two standing cables IO are employed, by the alternate shortening of which the valves are operated.
- My invention consists in the application to a valve-control gear of the class described 'of weighting devices, whereby the tensionof the operating cables is constantly maintained, whatever may be the variations in length of the cables,from alterations-in temperature, &c. or from wear, and whereby the accuracy of the action of the cables upon the valve is preserved,
- Figure 1 is a side view of an elevator-car and so much of the control apparatus as is needed to illustrate my invention.
- Fig. 2 is a view of the car from above.
- Control-cable 5 passes downward under sheave 19, over sheave 18, thence to one end of lever 7.
- Control-cable 6 passes under sheave 18 and over sheave 19, thence to the other end of lever 7.
- Sheaves 18 and 19 are carried upon the extremities of the hand-lever fixed pivotal point, the parallelogram bounded by 9 S 11 10 is maintained as a parallelogram; but vertical movement of the pivot 8, caused by an equal stretching or contraction of the cables 5 6, is permitted without affecting the position of the point 10 of the valve-gear,and therefore without affecting the valve.
- the valve apparatus used for illustrating my invention, and marked 15, is well known in this art, one construction thereof being shown in Patent No. 314,720, to George H. Reynolds, and needs no further description.
- the weight 14c is suspended from the pivot 8, and it is thus in effect connected to both control-cables 5 and 6 and serves to maintain an equable tension on both.
- the weight as attached to the lower endsof the control-cables; but it would be equally efficient if attached to their upper ends, as. shown in dotted lines, or in any equivalent manner by which the downward pull of the weight is converted into an upward strain on the cables.
- the pivot 8 should be made a fixed point by attaching it 7 to any stationary part of the frame-work, a plate, 25, for so securing it, being shown in dotted line in Fig. 1.
- the double cables 5 and 6 may be made of one continuous rope with fixed points, as iu- 8o dicated, instead of being out before being applied.
- I claim- 1 In an elevator-control mechanism, the combination of double standing cables, a takeup device on the car, and a weight suspended from both said cables for maintaining their tension.
Description
(No Model.)
' J. I. VEEDER.
MEANS FOR CONTROLLING ELEVATORS. No. 372,280. Patented Oct. 25, 1887.
u. PETERS. mwunm nw. Wnhinglm. 01c
UNITED STATES PATENT OEErcE.
JOHN IRWIN VEEDER, OF CHICAGO, ILLINOIS, 'AS SIGNOR TO THE CRANE ELEVATOR COMPANY, OF ILLINOIS.
MEANS FOR CONTROLLING ELEVATORS.
SPECIFICATION forming part of Letters Patent No. 372,280, dated October 25, 1887.
Application filed April 2, 1887. Serial No. 233,410. (No model.)
To aZZ whom it may concern.-
Be it known that I, JOHN IRWIN VEEDER, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Means for Controlling the Operation of Elevators, of which the following is afull specification.
My invention relates to that class of valvecontrol apparatus in which two standing cables IO are employed, by the alternate shortening of which the valves are operated. Y
My invention consists in the application to a valve-control gear of the class described 'of weighting devices, whereby the tensionof the operating cables is constantly maintained, whatever may be the variations in length of the cables,from alterations-in temperature, &c. or from wear, and whereby the accuracy of the action of the cables upon the valve is preserved,
so long as the variations in length of the two cables are respectively equal. As both control cables are of the same material and exposedto like conditions,it is evident thatt-he differences in their variation will be comparatively slight and will require adjustment only at long intervals.
In the drawings, Figure 1 is a side view of an elevator-car and so much of the control apparatus as is needed to illustrate my invention. Fig. 2 is a view of the car from above.
1 is the elevator-car suspended by the hoisting-rope 2, which passes over. sheave 3, sup ported by beam 4. Tothe beam 4,0r any other fixed support, are fastened the control-cables 5 5 and 6. Control-cable 5 passes downward under sheave 19, over sheave 18, thence to one end of lever 7. Control-cable 6 passes under sheave 18 and over sheave 19, thence to the other end of lever 7. Sheaves 18 and 19 are carried upon the extremities of the hand-lever fixed pivotal point, the parallelogram bounded by 9 S 11 10 is maintained as a parallelogram; but vertical movement of the pivot 8, caused by an equal stretching or contraction of the cables 5 6, is permitted without affecting the position of the point 10 of the valve-gear,and therefore without affecting the valve. The valve apparatus used for illustrating my invention, and marked 15, is well known in this art, one construction thereof being shown in Patent No. 314,720, to George H. Reynolds, and needs no further description. The weight 14c is suspended from the pivot 8, and it is thus in effect connected to both control-cables 5 and 6 and serves to maintain an equable tension on both.
I have shown the weight as attached to the lower endsof the control-cables; but it would be equally efficient if attached to their upper ends, as. shown in dotted lines, or in any equivalent manner by which the downward pull of the weight is converted into an upward strain on the cables. In this case the pivot 8 should be made a fixed point by attaching it 7 to any stationary part of the frame-work, a plate, 25, for so securing it, being shown in dotted line in Fig. 1.
The double cables 5 and 6 may be made of one continuous rope with fixed points, as iu- 8o dicated, instead of being out before being applied.
I claim- 1. In an elevator-control mechanism, the combination of double standing cables, a takeup device on the car, and a weight suspended from both said cables for maintaining their tension.
2. In an elevator-control mechanism, the combination, with the pivoted lever of a cable device by which the valve is shifted, of a radius-bar, such as 12, whereby vertical motion is allowed said lever without disturbing the operation of the valve by said lever.
3. The combination, with the cables of an 5 elevator-control mechanism, of thelever 7, the suspended Weight 14, the radiusbar l2, and the "alvedever 13.
JOHN IRWIN VEEDER.
Witnesses:
P. H. T. Mason, J. H. RAYMOND.
Publications (1)
Publication Number | Publication Date |
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US372280A true US372280A (en) | 1887-10-25 |
Family
ID=2441291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US372280D Expired - Lifetime US372280A (en) | Means for controlling elevators |
Country Status (1)
Country | Link |
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US (1) | US372280A (en) |
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- US US372280D patent/US372280A/en not_active Expired - Lifetime
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