US2641216A - Anchor - Google Patents

Description

G. E. DIAL June 9, 1953 ANCHOR 2 Sheets-Sheet 1 Filed 091. 31, 1949 NFQN June 9, 1953 Filed Oct. 51,, 1949 G. E. DIAL ANCHOR 2 Shets-Shget 2 M/l/fA/ 70/ erys Euye ne Q/ WWW Patented June 9, 195 3 UNITED STATES. PATENT 1 OFFICE Application October 31, 1949, Serial No. 124,604

- In Great Britain November 4, 1948 1 Claim. 1

The present invention relates to anchors and more particularly to anchors of the type in which the chain is free to run along the shank of the anchor. My British Patent No. 570,950 describes an anchor of this type in which the chain runs along a slot extending substantiallyfor the length of the anchor.

According to the present invention an anchor in which the chain is free to run along the shank of the anchor with the flukes in pivoted relationship with the shank is characterised in that the flukes are of X-shape in cros section and longitudinally diminishing to a point, the axes of the flukes diverging from the base to the point, the head of the anchor to which the flukes are attached being provided with lateral projections a plurality of which are inclined in the direction of the flukes and others inclined away from the fiukes so that those inclined in the direction of the flukes assist to bury the flukes in the sea-floor when the anchor is dragged in the normal manner and the projections inclined in the opposite direction serving to bite the sea-floor and turn the anchor over when the chain pulls the anchor in the opposite direction.

The invention is illustrated in the accompanying drawing in which:

Figure 1 is a side elevation of an anchor constructed in accordance with the present invention;

Figure 2 is an end elevation of the anchor shown in Figure 1;

Figure 3 shows an inchor in accordance with the present invention in a double fouled position; and

Figures 4, 5, =6, "7 and 8 show the stages of freeing the anchor from the double-fouled position and re-establishing an anchorage.

Referring to Figures 1 and 2 the shank I of the anchor is formed of circular iron bar shaped to provide a slot 2 in which the anchor ring 3 runs. The anchor shank is pivoted in the head of the anchor on a pin 4 which turns in a pair of apertured lugs 5, 5.

The head of the anchor comprises in essence an arcuate member 6 to which the fiukes I are secured as by welding. The flukes are X-shaped in cross section and diverge from their base away from the anchor shank l.

The arcuate member '6 is reinforced internally by an inverted V-member 8 which spans the internal arch of the member '6 and at the same time serves as a bearing for the pin 4 so that the load on the anchor exerted by the pull on the chain is distributed along the length of the anchor head.

The arcuate member 6 is extended at its sides to form projection-s 9, 9 which are inclined in the direction of the flukes I. On the rear of the arcuate member 6 there are formed claws Ill-l0 projecting in a direction opposite to the flukes I. Along the underside of the arcuate members 6 there is provided a strengthening bar H which extends from one end to the other of the member 6 and serves to take any shock resulting from the anchor being dropped head-first onto the sea-floor.

The whole of the anchor apart from the shank, the pivot pin and reinforcing bar ll may be fabricated from heavy sheet steel or other suit able metal and the component parts welded together.

The features of the slotted shank, the pivoting between the head and the shank, the forwardly extending projections 9 and the rearwardly projecting claws l0 combine to enable the anchor to be used in a manner not possible with any heretofore known type of anchor. To illustrate this Figures 3 to 8 show the manner in which the anchor can be extracted from a double-fouled position. In Figure 3 the anchor is shown to be double-fouled and in this condition all other anchors have to abandoned. With the combined features of the present invention however the anchor can be easily extracted by manoeuvring the vessel. In the first manoeuvre the vessel is directed to pull in the opposite direction to that shown in Figure 3. This lifts the flukes I and turns the anchor to the position shown in Figure 5 where the chain l5 which is fouled lies now over the flukes and under the shank. The vessel is now led in the opposite direction to pull in the direction shown in Figure 6 and this frees the anchor by sliding it out from in under the chain as shown in Figure 7. The rapid turning of the anchor as shown in Figures 4 and 5 results from the claws l0 gripping the sea-floor so that the anchor immediately pivots on its head. After leaving the fouled chain l5 the claws l0 serve to turn the anchor over to the position shown in Figure 8, the flukes being driven into the sea-floor by reason of the projections 9 forcing the tips of the nukes downwardly. By making the side members of the shank circular in section and providing a circular anchor ring the ring is free to manoeuvre into any position along its slot whether there is a direct or side pull upon it.

Having thus described my invention what I claim is:

A ships anchor comprising a shank having a slot extending longitudinally thereof and having side members of circular cross section, an anchor ring connecting member slidably engaging in said slot and adapted to be connected to an anchor chain, an anchor head comprising a substantially rectangular sheet metal member curved along the minor dimension thereof to provide a head member of arcuate cross section and substantially uniform thickness, a reinforcing member extending across and spanning the said head member and secured to the concave face thereof, a further reinforcing member extending longi tudinally centrally of the width of the head member and secured to the convex face thereof, a pair of spaced diverging flukes of X-shape cross section secured to and extending from the concave face of said head member, each of said flukes bei g formed of she t me al members secured together as by welding to providelthe said X shape cross section, a p n pivotall-y connectin one end of said shank to the concave face of said head member, portions of said head member extending on each side beyond the width of the flukes to form a plurality of spaced projections extending laterally in the direction of the flakes, a pair of elongated sheet metal members head, and the said projections being adapted to cooperate with said pivoted shank and slidable connecting member for effecting turning movement ofthe anchor relative to the sea floor.

GEORGES EUGENE DIAL.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 3 8,6 6 William .Dec- M 319 614 l o heree Jan. .13 183.5 5 11 Ewen Marlfi, 902 906,02 eu 7- De 53, 998

2,458,077 Ke lum a? ..-1.- A .26 7. 9.

FOREIGN PATENTS Numbe ountry at 65,139 Germany Dec. 20, 1.892

Images