US1678961A - Attachment for wire rope - Google Patents

Description

July 31, I928.

' R; w. SCQTT ATTACHMENT FOR wmpnors Filed April 9} 1927 INVENTOR Q Rurh s'zy W Scott.

H ATTORNEY Patented July 31, 1928. 1

UNITED STATES PATENT OFFICE.

. mmsnv w. soon, or moN'rcLAm, NEW JERSEY, assrenoa 'ro Amanrcm CABLE COMPANY, 11m. A CORPORATION or DELAWARE.

ATTACHMENT FOE-WIRE ROPE.

Application filed April 9, 1927; Serial in. 182,289.

This invention relates to attachments for stranded wire structures such as rope, cable, strand, and the like, of the general nature of those described in my co-pending application, Serial No. 93,379, filed March 9, 1926.

An important feature of the method of affixing such attachments involves the compressing of the attachment by means of hammers, swedges, presses, and the like, until the structure is firmly gripped by the attachment, the'latter being indented by the individual'components of the structure. It is obviously highly important for all uses of the attachment, and particularly in the case of its use on elevators, that there be some certain way of knowing when the compression has been carried out to a sufficient extent to insure a firm union. 1 have found that by starting with a metal sleeve of a given wall thickness and a strandedwire structure of given diameter, the ultimate diameter to which the sleeve is reduced affords a reliable measure of the strength of the union. While this ultimate diameter may be measured by ordinary gauges it appears that workmen cannot always be depended upon to exercise the proper amount of care in making such measurements and I often they are omitted altogether: Consequently it is highly desirable thatmeans be provided for dispensing to as great an extent as possible with the human element involved in aflixing such attachments.

The invention herein described has for its principal object a construction which would accomplish my purpose by making it impossible to assemble the arts unless there has been. a reduction in iameter of the sleeve suflicient to insure the required strength.

Another advantage which my method has consists in the fact that it obviates the necessity of direct tests, which are often carried to such an extent as toimpa-ir the strength of what would otherwise be a satisfactory connection. a

Referring to the drawings:

Fig. 1 is a view of the attachment 1n connection with a shackle.

Fig. 2 is a view of a direct connection with the part tobe supported, for example the I beam of an elevator car.

In the illustrated embodiments of the invention the'part designated by the reference numeral 1 is a. wire rope of the type customarily employed for supporting an eleng device.

vator car, an('l 2 (see Fig. 1) is an I vbeam of composite structure similar to those usually formed at the top of the structure of the car, having a vertical opening 3 through which the elevator rope passes to a connect- This connecting device may, ex-

cept as hereinafter-described, be of any construction suitable to effect connection betweenthe wire rope 1 and'the beam 2 and also to permit inspection of the metal fitting 5 what may be termed a container flanged as 7 shown if desired, comprising a cylindrical member of metal-adapted to surround the lower portion of the wire elevator rope and having a central bore of a diameter which will receive the attachments 5 and 7 only 7 when they have been reduced to the degree that has been determined in advance will effect a secure union of the attachment with the rope. In Fig. 2 I show a modified form of connection suitable for installations of a similar character and only differing in detail of. constructon from that shown and described with reference to Fig. 1. In the embodiment illustrated in Fig. 2 the Wire rope 1 and the attachment members 5 and 7 are 5 similar in every detail to those shown and described with similar reference numerals in the descriptionof Fig. 1. The numeral 8 indicates the structure of a composite I beam which is sufliciently similar to the I beam 2 as notto require detailed description. The 7 member 9 is a bolt upon which is formed integrally a socket l0 having a basket 11 slotted at 12 to receive the wire rope land having grooved inner walls as indicated by 9 dotted lines at 13 to form a space for the 'reception of the attachment sleeve 5 when the device is in place. Similarly as in the case of the structure in Fig l the diameter of the bore formed by the inner walls 13 is gaged to that diameter of the sleeve at which the sleeve, when sufficiently reduced from its original diameter,- will be securely fastened to the rope.

Having illustrated and described my in- 10? vention and suitable means by which the samermay be carried into effect what I claim as new and desire to secure by Letters Patent is 1. In combination, a stranded wire strucv In the instance illusture provided with a metalattachin sleeve retained thereon by compression, an a con-= nector. for said sleeve comprising a container provided with a seat and with a bore of a diameter which is a measure of the 'sufliciency of the reduction of the diameter of the sleeve to produce a predetermined compression t "2. In combination, a stranded wire structure provided with a metal attaching sleeve retained thereon by compression, and a. conpression.

"11801301 for said sleeve comprising a shackle 15 ciencv of the reduction 'of the diameter of the sleeve to produce a pre-determined com In testimony. whereof, -I have signed this speclfication.

RUMSEY W, SCOTT.-

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