US1451109A - Anchor - Google Patents

Description

Apr. 10, 1923. 1,451,109 N. D. POWELL I ANCHOR Original Filed 001;. 4, 1919 WITNESS: INVEN TOR 1 ATTORNEY Patented Apr. 10, 1923.

omen-p srares 1,451,109 raraiar orator.

NORRIS D. POWELL, OF CHESTER, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO BALDT ANCHOR & CHAIN,COM P.A1\TY,'A CORPORATION OF PENNSYL- VANIA.

ANCHOR.

Application filed October 4, 1919, Serial No. 328,445. Renewed December 1, 1922.

To all whom it may concern:

Be it known that I, Nomus D. POWELL, a citizen of the United States, residing in the city of Chester, county of Delaware, and State of Pennsylvania, have invented a. new and useful Anchor, of which the following is a specification.

My invention relates to anchor structure, particularly of the type in which the shank is rigid with respect to the head or fluke member.

My invention resides in an anchor structure wherein there is cored or otherwise produced an opening in the head or fluke member, which may be of wrought iron or steel or of cast steel, and a shank, preferably of wrought or forged iron or steel or of cast steel, is provided at its lower end with a part adapted to extend into the aforesaid opening in the head member, which latter is then preferably heated and forged or hammered around the end of the shank, which preferably is recessed or otherwise shaped, whereby there is effected an interlock between the two members preventing their separation under the heaviest of strains.

My invention resides in an anchor substantially as hereinafter described.

For an illustration of my structure and a method of making the same, reference is had to the accompanylng drawing, in which:

Fig.' 1 is a side elevational View of the completed shank and head.

Fig. 2 is an end elevational view of the structure of Fig. 1, partly in section, on the line 2-2 of Fig. 1.

Fig. 3 is a bottom plan view of the head or flugke member before insertion of the shank.

Referring to the drawing, H is the head or fluke member, preferably of cast steel, or of wrought or forged iron or steel, integral with which are the flukes F.

In casting or forging the head member there is cored or formed therein the preferably elongated opening or hole It in the boss or enlargement b.

The shank S is preferably of wrought or forged iron or steel or of cast steel. It is provided at its upper end with the usual hole 6 through which extends the usual stock A, shown onlyin Fig. 2 in its stowing position. When in use the stock extends horizontally through the hole 6 with the shoulder a against one side of the shank at the hole 6 and held in such position on the other side of the shank in well known manner by a pin, not shown, extending through a hole in the stock A.

The lower end of the shank S is adapted to pass more or less freely through the hole It in the head. As indicated in Fig. 2, the sides of the lower end of the shank S are suitably hollowed or recessed, preferably without sharp angles, as indicated by the full lines 0. The inner walls of the hole h are originally preferably straight, as indicated by the dotted lines cl. After insertion of the shank into the hole It the head member, especially in the vicinity of the boss 6, is, either cold or preferably when heated to suitable temperature, forged, hammered or pressed into the depressions'or recesses d in the shank, from the dotted line position d to the full line position 0. The hammer or press is applied to the side faces f of the boss I), which in its original condition may be somewhat convex, as indicated by the dotted lines g, Fig. 2, the hammering or forging operation forcing the metal inwardly to the full line position indicated.

Upon cooling the head member even more firmly grips the shank by shrinking thereon.

By this construction the shank is secured with perfect rigidity to the head member and the structure is then capable of withstanding the heaviest of strains.

By recourse to my structure and method it is possible to overcome difficulties heretofore met in making an anchor of this type of cast steel with the shank and head integral, particularly because of the relatively smaller metal section in the shank causing difliculties in casting and sometimes resulting in shrinkage, cracks, etc. There is a further advantage in my structure and method in that when casting the shank and head integral a. relatively large flask or molding structure is required, involving relatively great amounts of sand or labor, considering the size or weight of the casting resulting. However, in accordance with my invention the head member and the shank may be separately made to advantage, and then united into a rigid structure.

W hat I claim is:

1. Anchor structure comprising a head provided with an opening therein, and a separate shank having its lower end inserted in the opening in the head and having a depression into which the head at its opening is fitted to rigidly connect the head and shank.

2. Anchor structure comprising a head therein having substantially the same cross sectional diameter at lts ends, and a separate shank having lts lower end formed for shding movement in either direction ;into ,and

through, the openingin the head and having 10 V oppositely disposed depressions into which theheadv on opposite sides of its opening is t e J i idlyeennee theewd nish s provided with a, relatively elongated opening I t s imony "whe o I h v -hrw affixed my signature this 3 day of Qet oher, 15 Ll..i .ll'= 9- M

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