US1636760A - Ship's anchor - Google Patents

Description

E. B. SWIFT SHIPS ANCHOR- July 26 1927.

Filed Nov. 1, 1926 4 T TORNEY.

Patented .Fuiy 2%, 1927.

tihii'iEQ STATES EDWARD B. SWIFT, OF SEATTLE, WASHINGTON.

SHIPS ANCHOR.

Application filed November 1, 1926. Serial No. 145,472.

My invention relates to iinpreven'ients in ship anchors and the object of my invention is to provide an anchor that can easily be recovered by the use of a grappling line in case said anchor is lost in the water.

Another object is to provide an anchor having hook like checks formed thereon, said chocks serving to receive a grappling line or to receive hoisting means, as a cable or chain by which the anchor may be hoisted while the stock is being inserted.

A further object is to provide improved means for securing the anchor stock to the anchor.

Other and more specific objects will. be apparent from the following description taken in connection with the accompanying drawings.

The invention is intended to be incorporated. into the construction of large heavy anchors which often weigh many tons and are expensive on account of their great weight. Thesev anchors are frequently lost on account of the breaking of the main anchor cable. The present invention makes possible the recovery of these anchors.

In the drawings Figure 1, is a view in elevation showing the rear side of an anchor constructed in accordance with my invention.

Fig. 2, is a sectional view of the anchor substantially on broken line 22 of Fig. 1.

Fig. 3, is a fragmentary view in elevation of the inside of the hub or central portion of the anchor.

Figs. 4; and 5, are views in elevation of clamp means used for securing the anchor stock to the anchor.

Fig. 6, is a fragmentary sideelevation of the end portion of the anchor stock.

Fig. 7, is a fragmentary rear elevation of a modification of the invention.

Figs. 8, and 9, are fragmentary sectional views of other modifications of the invention respectively.

Referring to the drawings, throughout which like reference numerals designate like parts, I show an anchor 10, of substantially star shape, formed with a plurality of points 11, so that it will engage equally well with the surface on which it rests regardless of the position into which it is turned.

My invention consists in providing on said anchor one or more rigid checks 12, which are arranged so as to receive a cable or chain for lifting the anchor. In pracside of each anchor point, but also contemplates the provision of a less number of chocks on the backs of the anchor points, or'the provision of one or more checks 13, on the back of the anchor at locations other than the anchor points, as shown in Fig. 7, or the provision of a chock or chocks 14 011 the front side of the anchor as shown in Fig. 8, or further providing chocks on both the front and rear side of the anchor. The checks may be cast integrally, Figs. 1, 2, 7 and 8, or they may be separable as in Fig. 9, in which the chock 27 is embedded in the anchor at the time of casting or is screwed into or otherwise secured thereto.

The anchor 10 is provided with an expanding, centrally arranged hole or eye 15 for the reception of the expanded or frustroconically shaped end 16 of an anchor stock 17. The anchor stock 17 has a cylindrical. portion 1.8 adjacent the expanding end 16 for the reception of a holding clamp formed of two duplicate parts 20 arranged to be secured together and clamped onto the anchor stock by bolts 2].. Lugs 22 on the anchor stock just above the clamp portion 18 serves as thrust means for the clamp 20. The two clamp parts 20 are preferably each notched as at 23 on both sides so 'as to fit over the ends of the lugs 22 and also to fit over integral lugs 24- on the anchor to prevent the stock from turning in the anchor, thereby preventing wear of the stock within the anchor. The clamp serves as an easily applied and efiicient means for securing the in large anchors which frequently weigh from two to eight tons. The eye 15 has notches 26 for clearance of lugs 22 in assembling.

In the operation of this invention, when an anchor is dropped it will ordinarily assume a position as shown in Fig. 2 with two of the anchor points resting on and digging into the bottom of the body of water in which the anchor is submerged and the outer end of the stock 17 also resting on said bot tom. If the anchor is lost, as by the breakage of the anchor cable or in any other way it will ordinarily assume the same position so that by dragging the loop of a grappling line 25 over said anchor as shown by dotted stock to the anchor especially lines in 1, said grappling line Will be pulled over the back of the anchor as indicated by the two dotted line positions and will catch in the upper chocks 12 so that the anchor may be lifted thereby. It will be apparent that when three or more of the checks 1% are provided on the back of the anchor there will always be one or more of said chocks in a suitable position to catch any cable or chain that is dragged there over.

The chock shown in 7, operates in the same manner as those shown in Figs. .1 and 2 and the chock shown in Fig. 8 will serve to catch a line that is dragged over the front of the anchor.

For handling and shipment the anchor stocks are ordinarily left out of the anchors to save space and facilitate handling. hen the ancho s are to be put into use the stocks must necessarily be secured in place therein. The checks 12 form. a very convenient means for engagement with hoisting devices by which the anchor may be lifted and held while "thestock is being secured therein and the clamping devices form convenient means for securing the stock in position within the anci'ior, said clamp beingreadily applied by the use of ordinary tools.

The foregoing description. and accompanyingdrawings clearly disclose a preferred embodimcntol my invention but it will be understood that this disclosure is merely illnstrative and-that such changes inthe invention may be made as are within the scope and spirit of: the following claims.

1 claim:

1. [in anchor having" chock hook means foi' ined thereon tor the reception of a grap pli-ng line.

2. An anchor having a plurality of chock hooks forn' ed on the rear side thereof wherewith a grappling line may engage.

3. The combination with a concavo-convex anchor of substantially star shape, of chock hook means rigid with the rear side oi. said anchor and opening toward the center thereof.

l. The combination with a eon'cavo-convex anchor of substantially star shape, of chock hooks on the points of said anchor on the rear side thereof said chock hooks having their openings directed toward the center of sai d anchor. f

5. The combination with a concavo-convex anchor having a plurality of star points on its periphery, of an integral chock hook formed on the rear side of eachot said points each of said chock hooks having an opening directed toward the center of said anchor thri'iugh which a line may enter to engage with the chock hook.

6. In an anchor of the class described an anchor body having a convergent eye therein, an. anchor stock having a conical end adaptei to fit within said eye and a clamp arranged to be secured onto said stock on the inside of said anchor to fasten said stock tosaid anchor.

7. Apparatus as described in claim 6 in which lugs are provided on. the anchor stock for the clamp to abut'against and said anchor is provided within said eye, with notches to permit said lugs topass there througli.

8. In an anchor of the class described, an anchor body having a convergent eye therein the peripheral walls of said eye having longitudinal notches, lugs formed on the inner side of said anchor adjacent said eye, an anchor stock having a frustro-conically shaped end adapted to litthe coi'ivergent eye of said anchor, lugs on said anchor stock at a distance from said frustro-conical end, the notches in the Walls of said eye permit ting said lugs to pass through the eye, and a clamp nieinber arranged to fit said anchor stock between said lugs and the inner surface of said anchor, saidclamp beingf notched at both ends to fit over the lugs on said anchor and said anchor stock respectively and pre vent rotation of said stock in said anchor.

In witness whereof, I hereunto subscribe my name this 21st day otOctober, A. D.

EDWARD n. swn r.

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