US2133425A - Fastening device - Google Patents

Description

' Oct. 18, 1938. H CARLSQNV 2,133,425

' FASTENING DEVICE Filed June 15, 1937 flair/7197 far/s w? ATTORNEYS Patented Oct. 18, 1938 UNITED STATES FASTENING DEVICE Henning Carlson, Brockton, Mass.

Application June 15,

1 Claim.

This invention relates to fastening devices, and its general object is to provide a fastening device that is primarily designed for suspended scaffolds, such as used by painters, and which can be secured to a roof board or the like, for detachably connecting scaffold supporting cables, blocks and tackles, etc., with respect to the board, and in an easy and expeditious manner, without fear of accidental separation or displacement.

An important object is to provide a safety fastening device, that includes a hook member for connection with a roof board and is adapted to detachably and adjustably receive a chain for connection with a block and tackle or the like, of scaffolds, the hook member being of special construction and having spring means cooperating with the hook portions thereof to prevent any possibility of disconnection of the chain therefrom or the hook member with respect to the board yet the chain can be adjusted with respect to the hook member without removing the chain therefrom.

A further object is to provide a safety fastening device of the character set forth, that will not connection therewith, and the device is simple in construction, inexpensive to manufacture and extremely efiicient in operation, use and service.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawing and specifically pointed out in the appended claim.

In describing the invention in detail, reference will be had to the accompanying drawing wherein like characters denote like or corresponding parts throughout the several views, and in which:

Figure 1 is a perspective view illustrating my device in use and showing the same attached to a roof board.

Figure 2 is a side elevation of the hook member of the device.

Figure 3 is a top plan view thereof.

Figure 4 is a top plan View of the bracket.

Figure 5 is a side elevation thereof.

Referring to the drawing in detail, it will be noted that I have illustrated my device as being attached to a roof board I that includes cleats, and for that purpose, I provide a bracket 2 which is formed from a single strip of metal having openings therein to receive suitable securing means such as screws, for fixing the bracket to the board and preferably between two of the cleats as shown. The strip is bent to provide a right angle portion 3 damage gutters or the like, or have any direct- 1937, Serial No. 148,405

to form a shoulder for disposal against a cleat and the right angle portion has an opening in the form of a slot 4 adjacent to its free end.

An important feature of my device lies in the hook member which includes a tapered body 5 which is substantially flat and terminates at one end into a single hook portion 6, while formed on the opposite end thereof is a pair of spaced parallel hook portions 1. The hook portions 6 and I are shown as being curved outwardly and upwardly from the body and are directed toward each other.

Secured to the body, preferably midway its ends by rivets or the like 8, is the flat intermediate portion 9 of a leaf spring which includes an arm I0 having its free end normally engaged with the inner side of the hook portion 6, and a relatively wide arm II normally engaged with the inner sides of the hook portions 1, as clearly shown in Figure 2.

The hook portion 6 is mounted through the slot lof the bracket 2 for detachably securing the hook member to the bracket, and extending between the hook portions 1 is a chain l2, having links of a width to bridge the hook portions 1 as shown in Figure l, consequently it will be seen that the chain is not only detachably secured to the hook member, but can be adjusted with respect thereto merely by rotating and sliding the chain for disposing any one of the links in bridging association with the hook portions 1. The chain preferably has a ring l3 secured tothe outer end thereof for the purpose of receiving a block and tackle, cables or the like of scaffolding, and I preferably provide a sleeve I4 formed from leather or other suitable material to prevent the chain from damaging the edges of roofs, gutters and the like. It will be obvious that the sleeve may be a section of a rubber hose which will prove very efficient for the purpose intended.

It will be further obvious that my fastening devices are used in pairs, one for receiving the cables or block and tackle of the suspending means at each end of the scaffold, and of course two roof boards or other similar means anchored to the roof, will be used.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claim.

What I claim is:

A fastening device for suspending scaifolds and the like from a roof, and comprising an attaching bracket having an angled portion provided with a slot therein, a hook member including a single hook portion for passage through the slot for connection with the bracket, a pair of parallel hook portions included in the hook member, a chain slidably mounted between the pair of hook portions and having links of a width to bridge the

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