US1604848A - Ship's anchor - Google Patents

Description

A. E. 'OSBORN ET AL Oct. 26 1926.

SHIP S ANCHOR Filed Jan. 3, 1924 2 Sheets-Sheet 1 yrraAA fy V r 1,604,848 A. E. OSBORN ET AL SHIP'S ANCHOR Filed Jan. 5. 1924 2 Sheets-Sheet 2 Fatented Get. 26, 1923.

UNITED raters rarest ries.

ARTHUR EDVIARD OSBORN AND WILLIAM NORMAN, OF DUDLEY, ENGLAND, AS-

SIGNORS TO N. HINGLEY & SONS LIMITED, OF DUDLEY, ENGLAND, A LIMITED LIABILITY COMPANY OF ENGLAND.

SHIPS ANCHGR.

Application filed. January 3, 1924, Serial 170.684 .235, and in Great Britain January 6, 1923- This invention has reference to ships anchors.

' IVith heavy anchors of the kind referred to, weighing many tons, it is found that fractures take place in lowering it and striking the bottom; and while various means have been proposed to obviate this defect, such means have not proved satisfactory in practise, and it is still found that the damage or fracture takes place; and the chief object and effect of the invention is to provide improvements in connection with such anchors which will obviate this defect or deficiency.

In the anchor according to this invention, the thrust of the trunnions of oscillation, whether cylindrical or spherical, when an anchor is lowered, and strikes the bottom, and the jar of the shank on the trunnions and head resulting therefrom, is taken by the metal of the head proper which projects beyond the back or the plane of the trippers, and similarly, the strain or thrust of the trunnions on the anchor when in use, is taken by the metal of the body of the anchor as usual, i. e. by the metal which lies below the outer plane of the trippers; so that the solid metal of the head in both directions, receives the whole of the strain; and the con struction by which this is accomplished is illustrated by the drawings which show several modifications of such constructions.

Figure 1 is an elevation partly in section; Figure 2 is a plan; and Figure 3 a cross section. Figure 4 is an elevation, and Figure 5 an end view showing another modification,

Figure 6 an elevation; and Figure 7 a cross section of a modification.

Figure 8 is an elevation, and Figure 9 a plan showing an anchor of the ball and socket type.

In the drawings, 1 is the shank, and 2 are the trunnions connected with the shank, which project out from the sides of same, and by means of which the head is connected to the shank, and is held. 3 represents the head of the anchor, of which 4 are the trippers, 5 the crown part which lies outside or beyond the general plane of the tripper portions 4. 6 are the arms, cast in one with the head; and 7 are the sockets or bearings within which the trunnion portions 2 of the shank 1 fit and lie.

The holding blocks or parts by means of which the shank end or head and the anchor head are, held in position, are marked 8, and the holes in the head in which they fit and through which they pass, 9.

In Figures 1 to 3, the holes 9 in the crown 5 and pins or blocks 8, are rectangular, and when the blocks are in position, their inner ends lie directly above the trunnions 2, and so hold them down in position in their bearings or sockets 7; the inner ends of the blocks being cut away and made concave to correspond with the cylindrical trunnions 2, as shown.

Above the socket 7 Fig. 1, the crown 5 is carried inwards at 10, and directly overhangs the space above the sockets 7; and the upper portions of the blocks or bars 8 lie in contact with this part .10. The parts 10 thus receive part of the stress which is received by and transmitted to them from the trunnions 2, when the anchor head drops on to the bottom when lowered.

Owing to the pins or bars being partly held or embedded in the crown portion of the anchor head, this latter portion will also take a part of the thrust; and prevent the pins or bars becoming bent. This characteristic applies generally to the various modifications of construction of anchor herein described.

The blocks may be of any suitable sectlon.

The trunnion 2 is passed through the shank eye when the latter is in line with the hole 9, and then lowered, and the blocks 8 inserted and secured by bolts 12.

In Figures et and 5, the pin 2 is extended at each end which come against the flanges 18; and a notch is provided in the trunnion, into which a projection 14 fits. The blocks 8 fitting in sockets 7 lie on a portion of the trunnion 2, and are held in position by rivet or bolt 12.

The trunnion 2 is passed through the shank as in Figures 1 to 3, and is secured by rivets 15.

In Figures 6 and 7 the trunnion pin 2 is held in position by the holding blocks 8. The metal 'part 10 of the crown as shown lies directly over the upper surface of the trunnion 2, and takes the impact from same when striking the bottom.

In this form of the invention, the block 8 on each side may be a single block as indicat-ed in Fig 6, or may be in two sections arranged side by side, as indicated in Fig. 7.

In Figures 6 and 7 the parts 10 of the crown 4 are carriedinwards above the holding blocks 8; and the ends ofthe blocks 8 lie over the trunnion. In Figure 7 two forms of blocks 8 are shown.

In Figures 8 and 9, the ball trunnion portions 2 of the shank is held in position by the inwardly projecting endsof' the holding blocks 8.

What is claimed 1 is 1. An anchor-wherein the trunnion ofthe shankis 'held 'downin position by blocks or bars inserted in holes in the crown extending in a direction: parallel with the axis of the trunnionyand theinnerends of" the blocks being extended over. the trunnions on the crown side, and c the inetalt of the crown of the anchor lies directly under said ends.

2. An anchor including a shank having the trunnion thereof mounted in the crown, and means fitted in sockets in the crown and extending in a direction parallel with the axis of the trunnion to engage and interfit with said trunnion, the metal of the crown lying directly under said means.

3. An anchor wherein the trunnion of the shankis held down and against axial displacement by blocks fitted in sockets in the crown, with said sockets extending in a direction parallel with the axis of the trunnion, the metal of the crown lying directly under said blocks.

Intestimony whereof We have signed our names to this-specification.

ARTHUR EDIVARD OSBORN. WILLIAM NORMAN.

Images