US402208A

US402208A - Territory

Info

Publication number: US402208A
Authority: US
Publication date: 1889-04-30
Anticipated expiration: 1906-04-30

Description

' A. UREN. SNATGH BLOCK.

(No Medel.)

No.` 402,208. Patented Apr. 30, 1889.

Fig. 2 is an edge view. Fig. `3 is a detail of the head e under any circumstances.

UNITED STATES PATENT OEEicE..v

ANDREWT UREN, OF. SEATTLE, IASHINGTON TERRITORY.

BLOCK.

SPECIFICATION forming part of Letters Patent No. 402,208, dated April 30, 1889.

Serial No. 282,745. (No model.)

To all whom it may concern:

Be it known thatI I, ANDREW UREN, of Seattle, in the county of King and Territory of Washington, have invented certain new and useful Improvements in Snatch-Blocks; and I do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. i

Myinvention relates'to that class of snatchblocks which have one side partly open for theready insertion or removal of the rope.

My invention consists in details of construction described below, and pointed out in th claims.

In the drawings, Figure l is a side view.

the sheave-bolt, partly in section to show the spring-latch.

Like letters refer to like parts.

A is the snatch-block generally, of which B is the hook,O the cross-head, D the sheave, and E the sheave-bolt. Said bolt has at one end the usual fastening-nut, e, and at the other an integral head, c', which latter may be of any desirable shape. lVithin said head e is a lat-ch, h, operated by spring i, which is held in Aplace by a short screw, j. The latch is round at the inner end and is shouldered at 7c, which prevents the latch from leaving entirely (See Fig.

F represents the closed side or cheek ot' the block, and F is a rigid strap outside of it. The other cheek side, F2, does not extend to the cross-head, but leaves an opening, lr,which, when uncovered, allows the rope to be quickly inserted. In order that the opening r may beuncovered to insert the rope and securely and quickly closed without having to slacken the ropefto bring the block toward the hook, a swinging strap, Fis provided. The upper end of it is provided with an opening, f, which should be of such shape as to fit snugly over ing the strap securely and automatically in position. To open the block, the latch is pushed back by the thumb and the strap lifted by the index-finger of the same hand, after which the strap will fall or can be swung away, as shown in Fig. l, and leave openingr uncovered.

Having fully described my invention, what I claim, and desire to secure by Letters Pat-ent, 1s

l. In a snatclrblock having one side partly open, the combination, with the sheave-bolt havinga head, e', and the crosshead having one of its rivet ends so extended beyond said open side as to give room for the strap to have lateral and swinging movement, of the said strap pivoted to the cross-head and provided with an opening in its lower end for fitting over said bolt-head, as set forth.

' 2. In a snatch-block provided with an opening at one side for the insertion of the rope,

substantially as shown, the combination, with the said open side and the sheave-bolt provided with a head, of a swinging strap having an opening to fit over said head, the latter being provided with an automatic latch for quickly releasing or locking down said strap, as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

ANDRET IIR-EN.

VVitn esses:

GEO. KINNEAR, JOHN R. KINNEAR.