US111145A - Improvement in anchors - Google Patents

Description

eUnNEYc. PArrIsoN, or BALTIMORE, MARrLAND.

Letters Patent No. 111,145, dated January 24, 1871.

IMPROVEMENT lIN ANCHRS.

The Schedule referred to in these Letters Patent and making part of the same.

I, Gunner C. PATrIsoN, of Baltimore, iu the county of Baltimore and State of Maryland, have invented certain Improvements in Anchors, of which the following is a specilication.

The nature of my invention consists, lirst, in pivoting the stock of the anchor within a slot cut or formed in its, shank, so that either' end thereof may swing to a limited extent in the direction of the length of the shank, the object of this part of my invention heilig to facilitate the disengagement of the cable from the stock in the event of its entanglement therewith.

In the accompanying drawing- Figure 2 is a side elevationof my improved anchor,

illustrating the pivoted stock as secured by means of a transverse pin; r i

Figure 3, a front VVview thereof', with said pin removed;

Figure 4, a central vertical or longitudinal section inline :c a: of Iig. 2; y

Figure 5, a similar-section in line y y of g; aud Figure 6,21. view ofthe slotted shank, detached and partially nished, illustrating the manner of constructing the same.

A.' is the shank ofthe anchor.

It is constructed, by preference, of two Hat-faced plates t t of wrought-iron, of a width equal to that required in the shank.

lhcse plates are laid face to face upon interposed plates fw tw at each end thereof, aud'whose length determine the length of the slot f thus formed.

The lower plate w'j is made long enough to'aiord ample space for cutting therein the transverse slit or slot4 required in the lower end oi' the. shank ior'the reception of its linke-arm.

'lhe four plates t t and w w are welded together,

and, if deemed advisable, are furthermore strengthened by rivets, as illustrated by dotted lines in iig. 6, and, being thus united and subsequently finished oli` as required, constitute the shank A', as illustratedin the remaining iigures of the drawing.

B is the fluke-arm, made iu the usual manner, and pivoted, by'neaus `of' a transverse bolt, b, within a slit or slot fornie'd;l i 11 the lower end of the shank, at

convex edge toward said iluke-arm, upon a transverse- The stock D can thus freely swing 'in the slot in either direction, but 'its movements are arrested by means of a second transverse boltor pin, It, figs. 2 and 3, passing through the shank above the stock, and which stops it in either direction at such an angle (see the dotted lines, tig. 5) as'will eiectually prevent any lodgment or engagement of a chain or cable thereon.

To prevent any'n'rovemeut whatever of the stock, a third pin, Z, (see figs. 2 and 4,) may be inserted transversely through' the shank and through an aperture pierced in the enlarged. central portion fr of the stock.

By removing both the pinsk and. l the stock maybe swung around into the slot f so as to lie partially inclosed within the shank'A, as illustrated hy the positive lines-in iig. 5. This greatly facilitates -close stowage of the anchorwhen not in use.

The shank A' may, if desired, be `forged solid instead of being constructed as herein described, and the necessary slot f therein be subsequently cnt .out to receive the stock. y

1 claim as my invention- A stock, D', pivoted upon the shank A of au anchor, about midway its length, substantially inthe v manner and for the purpose herein set forth.'

. 'lhe foregoing specification of my improvement in anchors signed by me this 7th day of July, 1.870.

` G. G. PATTISON X'ilitnesses;-

Devin A. BURR, H. H, YOUNG.

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