Improvements in Machinery or Apparatus for the Manufacture of Boats.
Year: 1889

page_text: This Specification was, upon the 27th day of May 1890, Amended under
Sections 18 to 21 of the Patents, Designs, and Trade Marks Act, 1883.
Date of Application, 9th May, 1889
Complete Specification Left, 10th Aug., 1889-Accepted, 14th Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in Machinery or Apparatus for the Manufacture of
Boats.
I, WILLIAM HESLOP of 91 Bruce Street, New Wortley, Leeds, in the County of
York, Engineer do hereby declare the nature of this invention' to be as follows
In the specification of a former application for Letters Patent made by me under
date the 18th day of March 1889 No. 4695, I have described what I term a seamless
boat. Now my present invention has reference to the manufacture of such boats in
accordance with the said invention described in the specification of the aforesaid
application and also to machinery or apparatus suitable for carrying out such
manufacture.
A plate of metal such as mild steel having been cut roughly to form, is heated
to a suitable temperature (say 900° Fahrenheit or thereabouts) or say to a bright
red heat, and pressed or stamped partially to the required shape. This having been
done the plate is again heated once or oftener as required and whilst hot is sub-
jected to a further pressing or stamping operation or operations, whereby the proper
formation of the boat is eventually produced.
It will therefore be understood that the form and size of boats may be varied or
modified as required, and they may also be formed with water-tight or air chamber
at bottom, formed by rivetting a plate to the hull and continuing the same the full
length of the boat, or as far as may be required. These water-tight or air chambers
are, or may be, formed out of the sheet metal and closed at the top by covers rivetted
thereto, such watertight or air chambers are secured to the sides of the boat by
means of projecting pieces or flanges rivetted thereto, the tops of these after being
properly covered serve as seats; or there may be longitudinal water-tight or air
chambers, and in combination therewith there may be transverse water-tight or air
chambers which may be made slightly different in form and rivetted to the sides of the
boat and bottom airtight chamber, and may be utilized as seats.
The number of the above named transverse water-tight or air chambers may be
varied in accordance with the size or other requirements of the boat.
For the purpose of thus pressing from one piece of metal a boat with or without
the keel according to my present invention, I employ male and female dies so
constructed as to gradually give the required shape to the boat. The head of the
machine and the rising table or platform are actuated by hydraulic or other suitable
mechanism. To the head is fixed a male die which is of a form corresponding to
the general configuration of the intended boat and there is a female die which corre
sponds in its internal configuration with outline form required to be imparted to the
exterior of the boat. It will therefore be understood that the forms of the male and
female dies are subject to variations to suit the shape or size of boat required.
The female die or matrix is or may be fixed to the rising table or platform and is
made up of sections bolted together at their respective flanged joints, so that any.
required number of sections can be removed from or added to the main structure of
the die for the purpose of reducing or increasing the size of the die in accordance
with the required size of boat. The male die is or may be fixed to the head and is
also made up of sections corresponding, with those of the female die such sections.

page_text: being bolted together in a similar manner to the female or matrix, and may be
reduced or increased in number to suit the size of boat required.
The boat is gradually brought down to the form of the above described dies, and
in order to forin transverse watertight or air chamber I roughly cut a plate of steel
to suit the particular formation or construction of such boats, and the male and
female dies are made in sections varying or regulating the size of the air chambers
to suit the boat for which they are required.
The transverse water-tight or air chamber is formed in different shapes determined
by the requirements of the boat.
The dies for forming the various parts may be heated to any required extent for
the operations of pressing and to prevent chilling of the metal during such operations,
and the metal for the various parts of the boat may be heated any required number
of times during the process of manufacture.
I may vary the forms, proportions, dimensions and materials employed in carrying
out the above invention without departing from the distinctive features thereof.
Dated this 9th day of May 1889.
J. W. HARDING,
Agent for the Applicant.
COMPLETE SPECIFICATION (AMENDED).
Improvements in Machinery or Apparatus for the Manufacture of
Boats.
I, WILLIAM HESLOP of 91 Bruce Street, New Wortley, Leeds in the County of York
Engineer do hereby declare the nature of this invention and in what manner.
the same is to be performed to be particularly described and ascertained in and
by the following statement :-
In the Specification of a former application for Letters Patent made by me under
date the 18th day of March 1889 No. 4695 I have described what I term a seamless
boat.
Now my present invention has reference to the manufacture of such boats in
accordance with the said invention described in the Specification of the aforesaid
application and also to machinery or apparatus suitable for carrying out such, manu-
facture and my invention will be best understood by describing the same with
reference to the accompanying drawings.
A plate of metal such as mild steel having been cut roughly to form as shewn at
Figure 1 is heated to a suitable temperature (say 900° Fahrenheit or thereabouts) or
say to a bright red heat and pressed or stamped partially to the required shape as
shewn in plan Figure 2 in order to prevent the tendency of the plate to buckle.
Figures 3 and 4 being cross sections of the same respectively through lines A B
and CD of Figure 2. This having been done the plate is again heated once or
oftener as required and whilst hot is subject to a further pressing or stamping operation
or, operations, whereby the proper formation of the hoat is eventually produced such as
shewn in plan at Figure 5 and transverse section at Figure 6, but the stem and
stern may be made of like shape if desired. It will therefore be understood
that the form and size of boats may be varied or modified as required. Figure 7
is a longitudinal section of a boat constructed as above, and Figure 8 a transverse
section of same with a water-tight or air chamber E at bottom, formed by rivetting
a plate E to the hull F and continuing the same the full length of the boat as shewn
or as far as may be required.
Figures 9 and 10 are respectively a longitudinal section and transverse section of a
similar boat having water-tight or air chainbers G formed out of sheet metal and closed
at the top by covers H which are rivetted. thereto as shewn, such water tight or air
chambers G are secured to the sides of the boat by means of projecting pieces or
flanges rivetted thereto as shewn at J and the tops of these after being properly covered
serve as seats. Figures 11 and 12 are respectively longitudinal section and transverse
section of a similar boat; having longitudinal. watertight or air chamber K corre-
.

page_text: sponding with that shewn at Figures 7 and 8 and in combination therewith transverse
watertight or air chambers L of a similar description to those shewn at Figures 9
and .10; except that they are made slightly different in form and rivetted to the
sides of the boat and to the bottom airtight chamber K as shewn.
The number of the above named transverse water-tight or air chambers may be
varied in accordance with the size or other requirements of the boat.
For the purpose of thus pressing from one piece of metal a boat with or without
the keel according to my invention, I employ male and female dies made in sections
and bolted together as hereinafter described and so constructed as to gradually give
the required shape to the boat.
An example of such dies constructed and arranged according to my invention is shewn
at Figure 13 which is a side elevation of a portion of the hydraulic press carrying and
actuating the dies, the said dies thereof being shewn in vertical section taken on the
line A B of Figure 15.
'
Figure 14 is a transverse section of such a pair of dies. Figure 15 is a horizontal
section on the line D D of Figure 14 the upper or male die having been removed.
Figure 16 is a horizontal section taken through such male die corresponding with
the horizontal section shewn at Figure 15.
Figures 13, 14 and 15 all shew the boat in or between the dies as it would appear
after the second and final compression has taken place.
Figure 17 is an outline plan of a form of die suitable for the first compressing
operation.
Figures 18 and 19 are respectively vertical transverse sections on the lines CD
and E F of Figure 17.
Figure 20 shows the shape of a metal plate employed for the watertight or air
chamber.
Figure 21 is a vertical section on line G G of Figure 22 which latter is a
transverse section, and Figure 23 is a horizontal section on line H H of Figure.:21
these views illustrating male and female dies for compressing for example, such a
plate as is shewn at Figure 20.
Figure 24 shews a plate for forming a watertight or air chamber but somewhat
varied in form to that shewn at Figure 20.
Figure 25 is a vertical transverse section of a die suitable for compressing such
a plate as is shewn at Figure 24.
Figures 26 and 27 are respectively end view and vertical longitudinal section
shewing the shape of the watertight chambers after being stamped and when ready
for application to the boat.
Figures 28 and 29 are similar views to those shewn at Figures 26 and 27 but
shewing a somewhat different form of chamber.
Referring to Figure 13, 1 is the head of the machine, an.l. 2 is the rising table or
platforin actuated by hydraulic or other suitable mechanism. To the head I is fixed a
male die A which is of a form corresponding to the general configuration of the
intended boat whether that boat has a square or round stern, or stem and stern alike.
C is a female die which corresponds in its internal configuration with outline form
required to be imparted to the exterior of the boat.
It is to be understood that the forms of the male, and female dies are subject to
variations to suit the shape or size of boat required, and for this purpose the female
die or matrix C is fixed to the rising table or platform 2 and is made up of sections 3
bolted together through slotted bolt holes A at their respective flanged joints 4 so
that any required number of sections can be removed from or added to the main
structure of the die for the purpose of reducing or increasing the size of the die in
accordance with the required size of boat. The male die A is fixed to the head 1
and is also made up of sections 5 corresponding with those of the female die C, such
sections being bolted together at 6 in a similar manner to the female or matrix and
may be reduced or increased in number to suit the size of the boat required.
In the first formation of the boat and in order to take out the tendency to buckle
and to gradually bring it down to the form of the above described dies I first compress

page_text: the plate by means of dies of a similar shape to that shewn at Figures 17, 18 and 19.
otherwise the dies are all constructed as above described.
In order to form the transverse watertight or air chambers I roughly cut a plate
of steel, either to the form shewn at Figure 20 or Figure 24 or other shapes to suit
the formation or construction of the boats. In Figures 21, 22, and 23, the male die
is shewn at E and the female or matrix at F both or either of these may be made in
sections as shown at Figure 23 so that they may have other sections added for the
purpose of varying or regulating the size of the air chambers to suit the boat for
which they are required. At Figure 25 the male die is shewn at K and the female
or matrix at L, these dies are for forming the transverse watertight or air chambers
in different shapes to suit the requirements of the boat. Such chambers are shewn
at Figures 26, 27, 28, 29 when formed and ready for application to the boat.
The dies for forming the various parts may be heated to any required extent for
the operations of pressing and to prevent chilling of the metal during such operations
and the metal for the various parts of the boat may be heated any required number
of times during the process of manufacture.
It is to be understood that I reserve to myself the right to vary the forms, pro-
portions, dimensions and materials employed in carrying out the above invention
which may be variously modified without departure from the distinctive features
thereof.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that I am aware
that attempts have been made heretofore to construct boats by the use of hydraulic
or other pressure applied to the stamping of metal plates but such attempts have not
been successful, what I claim is :-
1. The herein described method of manufacturing seamless metallic boats, consist-
ing in cutting a metal plate to a suitable form, and subjecting the same to one or
more operations of heating and to the action or successive actions of preparatory and
final pressing dies, such dies being constructed in sectional parts and arranged and
heated as required before or during operation substantially as herein described,
whereby the required form of boat is produced with bow and stern and in some cases
with keel complete as desired, all substantially as set forth.
2. In seamless metallic boats, the arrangement, construction and application thereto
of watertight or air chambers of the kind herein before described and shewn with
reference to Figures 7 to 12 and 20 to 29 of the accompanying drawings.
3. The construction and arrangement of machinery or apparatus for the manufacture
of seamless metallic boats substantially as described and illustrated with reference to
Figures 13, 14, 15, 16, 17, 18 and 19 of the accompanying drawings.
4. The herein deseribed method of manufacturing transverse watertight or air
chambers, consisting in cutting the metal plate to a suitable form-und-subjecting came
to one or more operations of heating and to the action of pressing dies such dies being
constructed and arranged and heated as-required before or during operation-subs
stantially as herein described, whereby the required form of watertight or air chambers
are produced substantially as set forth.
4: In the manufacture of seamless' metallic boats, I claim the use and application
of preparatory and finishing dies made in sections; whereby complete seamless metallic
boats of varying sizes can be produced, such boats being provided with bow or stem
and stern and manufactured from one and the same metallic plate, all substantially as
herein before described with reference to the accompanying drawings.
שי:
WILLIAM HESLOP,
By J. W. Harding,
Agent.
WILLIAM HESLOP.
By J. W. Harding,
Agent.