US1428942A - Batten mold particularly for use in shipbuilding - Google Patents

Description

I. C. G. COOPER.

BATTEN MOLD PARTICULARLY FOR USE IN SHIPBUILDING. APPLICAIION man FEB. 17, 1920.

fi8 942. 1 Patented Sept 12, 1922 i. s art PATENT if. E

'BATTEN MOLD PARTICULAR-LY FOR USE IN SHIPBUILDING.

Application filed February 17, 1920. Serial No. 359,312.

(GRANTED UNDER THE raovrsrons or THE ACT or MARCH 3, 1921, 4.1 e rn. 1., 1313.)

.To all whom it may concern:

Be it known that I, ISAIAH CLEEVE Gon- DON Coornn, subject of the King of Great Britain, residing in Newcastle-upon-Tyne, in the county of Northumberland and Kingdom of England, have invented a certain new and useful Improved Batten Mold Particularly for Use in Shipbuilding, for which I have filed application in England Feb. 13, 1919, Patent No. 139,864, March 18, 1920, and of which the following is a specification.

The present invention relates to an improved batten mold particularly suitable for use in shipbuilding.

According to the present invention, five or more flexible elements or battens are adjust ably hinged together to form a batten mold, that is to say, each pair of elements is connected together by a hinge pivot adjustable along either of them, and is further connected similarly by hinge pivot elements to other battens.

The invention is more particularly described with reference to th accompanying drawings in which Figure 1. is a diagrammatic view of a scrive board.

Figure 2. shows the development of lines given upon the scrive board.

Figure 3. shows a typical arrangement of battens forming a batten mold.

Figure 4. is a front elevation of the hinge pivot.

Figure 5. is a side view.

Figure 6. is a corresponding plan view.

- From the frame lines 1, 2, 3, 4, 5, and the plate edges AB and CD as usually represented for a ship upon the scrive board, the true lengths of the edges between each frame are developed by known geometric means on parallel lines drawn at the spacing of the frames, that is to say a batten is laid along the line GEFGD and each point marked. Choosing any point on the batten as a fixed mark, set up the ordinates from this fixed mark constantly to a base 1. 2. 3. 4. 5, Fig. 2 and obtain the points oefgd and draw the curve through them.

Thus the true length of the line CD in Fig. 1. is shown at ed in Fig. 2. proportionately divided as to its parts intercepted between each frame at the points 6, f, and g. The similar line for AB is ab.

A further line HK more or less curved according to the curvature of the frame lines 1. 2. 3. 4. 5, is drawn across the lines on the scrlve board as shown in Fig. 1. with the ends within a few inches of the opposite corners of the plate represented by ABCD and completely within the boundaries of the area ABCD. This line is expanded similar to CD and proportionately divided between the frames as shown at hlmnk in Fig. 2.

Battens or bars of some flexibility are laid around each frame line separately and the lntersections of the lines AB CDv HK with the respective frame lines are marked, a batten or bar being used for each frame.

Further battens or bars are laid around the lines ab out his and each of the division points are marked.

The whole of the battens are then assembled into a mold by the aid of the hinge shown in Fig. 4. (in one form). The upper elements X are adjustable to the marking on the battens or bars measured from the frame lines and the bottom elements Y are adjustable to the marks on the battens or bars marked from the lines a?) 0d and his.

The upper and lower elements are then brought together, a pin W on one fitting into a socket V on the other in each case. The position of the pin of the one and the socket of the other are arranged so that the elements can rotate about the line of intersection of the edges of the battens or bars marked from the frames and the remaining bars. The upper and lower elements may be clipped together by pins Z or may be formed so as not to be parted provided that free rotation is allowed.

The frame thus formed truly develops the shape of the surface represented by the scrive board. It may be further stiffened by the application of more elements and bars in any positions but preferably to diagonal lines indicated at PQ and BS.

The batten mold assembled will be as Fig. 3. correspondin points being similarly lettered to the lines from which they were developed.

The hinge pivot elements consisting of the parts X and Y are adjustably clamped to the battens by means of set screws T. The number of hinged elements to be used follows the following law: where P is the number of pivots and N the number of batten then P=3 (N-S).

I declare that What I claim 1. As an article of manufacture, a batten mold comprising in combination more than five battens, and one less hinge pivot eleadapted to engage said battens adjustably along their length and having hinge pins thereon anda plurality ofclamps adapted to engage said battens' adjustablyalong their length and having sockets thereinyadapte'd' to'engage; said pins.

3, As an article of manufacture, a. batten mold comprising in combination a plurality of battens, a plurality of clamp members adapted to engage said battens, adjustably along their length and'having hinge pins thereon and a plurality of clamps adapted togengage said ,battens-adjustably along their length and having sockets therein adapted'to engage said pins, and means to lock said pins Within said sockets.

In witness whereof, I have hereunto signed my name this Qlstday of January, 1920, in the presence oftwo subscribing Wit nesses.

ISAIAH CLEEVE GORDON COOPER.

Witnesses:

BARBARA YOUNG, Ensm WALKER.

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