US2089143A

US2089143A - Elevator cable equalizer

Info

Publication number: US2089143A
Application number: US68775A
Authority: US
Inventors: Severn A White
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-03-13
Filing date: 1936-03-13
Publication date: 1937-08-03
Anticipated expiration: 1954-08-03

Description

Aug. 3, 1937. s. A. WHITE 2,089,143

ELEVATOR-CABLE EQUALIZER Filed March 13, 1936 2 Sheets-Sheet l Inventor Severn fl. Wlu'ie By flzmaoizmm s 5 Attorneys Aug. 3, 1937.

S. A. WHITE ELEVATOR CABLE EQUALIZER Filed March 13, 1936 2 SheetsSheet 2 i: Inventor- Srernfl Wfih'i M 5 Attorneys mung Patented Aug. 3, 1937 E5 T E F F ICE ELEVATOR CABLE EQUALIZER 's vern A. White, Baltimore County, Md. Application March 13, 1936, Seria1.No..68,775

4 Claims.

The present invention relates to new and useful improvements in elevators in general and has for its primary object to provide, in a manner as hereinafter set forth, novel means for connecting the multiple cables of an elevator to the car and weights in a manner to maintain a uniform load at all times on the several cables.

Another very important object of the invention is to provide an equalizer of the aforemen- 1 tioned character embodying a construction and arrangement which is such that crystallization of the cables from twisting and untwisting will be materially reduced or substantially eliminated.

Other objects of the invention are to provide an elevator cable equalizer of the character described which will be comparatively simple in construction, strong, durable, highly efficient and reliable in use, compact, and which may be manufactured and installed at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, wherein:-

Figure 1 is a view in side elevation of an installation embodying the present invention, the cross beams on the roof of the car being shown in cross-section.

Figure 2 is a view in horizontal section, taken substantially on the line 2-2 of Figure 3.

Figure 3 is a vertical sectional view, taken substantially on the line 33 of Figure 2.

Figure 4 is a fragmentary view in vertical section, taken substantially on the line 44 of Figure 2.

Figure 5 is a detail view in bottom plan of the rockable lower plate.

Figure 6 is a detail view in bottom plan of the stationary upper plate.

Referring now to the drawings in detail, it will be seen that the reference numeral I designates a plurality of cables to one end of which the usual weights 2 are connected. Connected to the other ends of the cables I is the car 3. Ex-

tending across the top of the car 3 is a pair of spaced, parallel beams 4.

The embodiment of the invention which has been illustrated comprises a stationary upper plate 5 of suitable metal having a substantially conical lower face 6 on the apex of which is an integral ball I. Mounted beneath the plate 5 is a rockable plate 8 having formed in its upper face a socket 9 for the reception of the ball I.

It will thus be seen that the plate 8 is mounted for universal rocking movement on the plate 5. The plate 8 further includes reinforcing webs I0.

Depending from the lower face of the rockable plate 8 is a plurality of integral balls I I on which cross-heads I2 are rotatably and rockably mounted. The cross-heads I2 have formed therein, at intermediate points, sockets I3 which accommodate the balls II. In their end portions the cross-heads I2 have formed therein openings I4 for the passage of vertical rods I5.

Plates

5 and 8 have openings I6 and I1, respectively, therein through which the rods I5 pass. At their upper ends the rods I5 terminate in sockets or the like I8 in which the ends of the cables I are anchored. The lower end portions of the rods I5 are threaded to receive nuts I9. Interposed between nuts I9 and the cross-heads I2 are ball washers 20. The reference numeral 2| designates lock nuts for the nuts I9.

When the equalizers are installed the upper plate 5 is secured in any suitable manner, as at 22, beneath the beams 4 of the car 3 and to a suitable attaching structure 23 on the weights 2. As is believed to be obvious, the construction and arrangement is such that the load will be equally distributed at all times on the cables I by reason of the fact that the plate 8 and cross-heads I2 are capable of substantially universal rocking movement. Further, the ball washers 20 permit the rods I5 to rotate freely thereby allowing the cables I to twist and untwist under stress, as when starting and stopping, thus substantially eliminating crystallizing. Any suitable means may, if desired, be provided for lubricating the moving parts of the device.

It is believed that the many advantages of an equalizer constructed in accordance with the present invention will be readily understood and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:-

1. An elevator cable equalizer comprising a stationary plate, asecond plate mounted for universal rocking movement beneath said stationary plate, cross-heads rockably mounted beneath the second named plate, and means for connecting the cables to said cross-heads.

2. An elevator cable equalizer comprising a stationary plate, a second plate mounted for universal rocking movement beneath said stationary plate, cross-heads rockably mounted beneath the second named plate, and means for connecting the cables to said cross-heads, said means including rods rotatably connected to the crossheads and extending upwardly therefrom through the first and second named plates.

3. An elevator cable equalizer comprising a stationary plate, a second plate mounted for universal rocking movement beneath said stationary plate, a plurality of balls on the lower side of the second named plate, cross-heads rotatably and rockably mounted on said balls, and rods connected to said cross-heads on opposite sides of the balls and extending upwardly therefrom through the first and second named plates for connection with the cables.

4. An elevator cable equalizer comprising a stationary plate, a ball integral with the lower side of said stationary plate, a second plate mounted for substantially universal rocking adjustment beneath the stationary plate, the second named plate having a centrally located socket therein accommodating the ball, a plurality of balls integral with the lower side of the second named plate, cross-heads rotatably and rocka'bly mounted on the second named balls, said cross-heads having sockets therein at intermediate points accommodating said second namedballs, rods extending slidably and rotatably through the first and second named plates and through the end portions of the cross-heads, nuts threaded on the lower end portions of said rods, ball washers interposed between said nuts and the cross-heads, and means on the upper ends of the rods for anchoring the cables thereto.

SEVE'RN A. WHITE.