US68487A

US68487A - Improved adjustable ship-buildeks mould

Info

Publication number: US68487A
Authority: US
Publication date: 1867-09-03
Anticipated expiration: 1884-09-03

Description

. JJaJJ/Qy i rLPETEns, PHOTO-LITHOGRAPNEW. WASHINGTON. D C.

@uitrit taten gatrnt @ffice JESSE J. CASSIDEY, 0F WILMINGTON, -NORTH CAROLINA. Letters .Patent No. 68,487, dated September 3,1867.

IMPROVED ADJUSTABLE SHIP-BUILDERS MOULD.

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'l'O ALL WHQM'IT MAY CONCERN;

Be it known that I, JESSE J. CASSIDEY, of Wilmington, in the county of New Hanover, and State of North Carolina, have invented a new and improved Adjustable Parallel Ship-Builders Mould; and I do hereby declare that the following isla full, clear, and exact description thereof, which will enable others skilled in the art to make and usethc same, reference being had to the accompanying drawings, forming part of this specification.v

Figure' 1 is a side view of my improved adjustable ship-builders mould, showing its application to the arc of a circle.

Figure 2 is an edge view.

Figure 3 is a side viewv of the saine, showing its application to double reversed curves.

Figure 4 is a cross-section taken in the line :e x, iig. 3.

Similar letters of reference indicate corresponding parts.

i The nature of this inventionl consists in providing an instrument for the use of'ship-builders, by which thc lines of curved patterns may be readily and accurately transferred to the timbers to be hewed and dressed for building a vessel. l I

It is well known that the irregular lines and curves required in the shaping of timbers for the frame of a vessel are rst laid out on-the floor of a workshop, and that in order to transfer the patterns to-the timbers Vto dress them by, a temporary mould, so called, is made to lit the pattern on the floor,l by bending thin strips of wood, and tacking them, to keep the proper shape until they are secured by nailing boards on the strips to allow them to be handled and placed upon 'the ship-timbers, which are then scribed or marked by the mould thus formed, to transfer to them the lines and curves which were laid out on'the floor. The moulds thus madey have no value for subsequent use with different patterns. i

The object of my improvement is to dipense with this tedious, troublesome, uncertain, and expensive method of transferringr patterns to ship-timbers, and it is accomplished by my adjustable parallel metallic mould, which can be adapted with great facility to any pattern by means of sliding set-screws, and may then be used for transferring the pattern to ship-timber, and may be used over and over again for the purpose, thus effecting great saving of time in performingthe work, and economy of material new consumed in constructing moulds for different' patterns.

In the drawing, A A represents a thin flexible metal band or ribbon, made preferably of steel, in which, at

regular distances apart, are fastened the ends of set-screws a a, as many as maybe necessary, which set-screws each pass through slots c c, fig. 2, in a corresponding metal band, B B, which is set at a parallel distance from the band A A, by collars b b, screwed upon or otherwise secured to the set-screws a a. I l r It will beseen that the metal band A A may be laid upon the door, and bent to'adapt it to any curved pattern usually required for ship-timbers, and it'may be fixed in any required position by sliding the set-screws a a, in the slots c c, in either direction necessary to bring the band B B to the corresponding parallel curved pattern, and then tightening the set-screws, to keep them in place, with wing nuts d d.

i Wlren'the band A A has thus been set to the pattern, the instrument can be handled and applied to the ship-timber, and the pattern be transferred to it by scribing or marking in the usual way.

IIaving thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

The adjustable parallel'ship-builders mould, constructed and operating substantially as and'for the purpose herein shown and described. i

'JESSE J.- oAssIDEY. Witnesses:

J. W. WINsLow, Anny H. NASH.