Improvements in the Manufacture of Roof Stays for Locomotive and other Boilers.
Year: 1891

page_text: Date of Application, 11th July, 1891
Complete Specification Left, 6th Apr., 1892-Accepted, 7th May, 1892
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Roof Stays for Locomotive
and other Boilers.
I, SAMSON Fox, of Leeds Forge, Leeds, in the County of York, Civil Engineer,
do hereby declare the nature of this invention to be as follows:-
My invention has reference to improvements in the manufacture of roof stays
for locomotive and other boilers and consists in producing such roof stays in one.
piece from a plate of metal pressed either whilst hot or cold, but preferably whilst
hot, to the required shape or form which may be varied to suit different
requirements.
In carrying out my invention I take a plate of metal such as mild steel which
after being cut to the required shape and size, is heated to a suitable temperature
and whilst hot is placed between suitable dies and pressed to the form of a trough
or channel with or without solid ends. If necessary a flange may be formed round
the sides.
By my invention I am enabled to produce roof stays that are lighter, stronger
and more casily fitted than those at present in use, which are usually constructed
of forged iron or steel, and in-some cases are formed of two or three plates bolted
or rivetted together with interposed ferrules.
Dated this 11th day of July 1891.
W. LLOYD WISE;
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Roof Stays for Locomotive
and other Boilers.
I, SAMSON Fox, of Leeds Forge, Leeds in the County of York, Civil 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 :-
.
My invention has reference to the manufacture of roof stays for locomotive and
other boilers by pressing metal plate either whilst hot or cold, but preferably
whilst hot, to the required shape or form which may be varied to suit different
requirements.
In carrying out my invention I take a plate of metal such as mild steel which
after being cut to the required shape and size, is heated to a suitable temperature
and whilst hot is placed between suitable dies and pressed to the form of a trough
or channel with or without solid ends. If necessary a flange may be formed round
the sides.
Referring to the accompanying illustrative drawings,
Fig. 1 reprosents in longitudinal section half of my improved roof stay, as made
of pressed steel.
Fig. 2 is an end view.
Fig. 3 is a cross section at the line A B Fig. 1.
This roof stay a is of a trough or channel form, made by pressing a plate of
steel of suitable thickness according to requirement between male and female dies.
CC are holes in the roof star
of the tan alata
Fig. 3 is a cross section at the line A B Fig. 1.
This roof stay a is of a trough or channel form, made by pressing a plate of
eel of suitable thickness according to requirement between male and female dies.
Care holes in the roof stay. in part of the top plate locomotive fire
ox with holes carranged to be opposite the holes c' in the roof stay these holes

page_text: being for stay bolts. d d d are malleable castings fitted in the places shewn and
having bolt holes d¹ for the purpose of securing them to the pressed steel roof
stay.
e is a strip of plate bent to the form shewn and fitted inside the roof stay, a
hole being provided for the pin of the swinging link (which is secured to the
roof of the boiler) to pass through.
The design of the roof stay may be altered to suit requirement, and the top part
may be made in steps instead of being tapered if so desired.
By my invention I am enabled to produce roof stays that are lighter, stronger
and more easily fitted than those at present in use, which are usually constructed of
forged iron or steel, and in some cases are formed with two or three plates bolted'
or rivetted together with interposed ferrules.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what I
claim is :-
For locomotive and other boilers the herein above described improved manufacture
of roof stays of plates pressed to the required shape or form as set forth and
illustrated in the accompanying drawings..
Dated this 6th day of Anril 1892.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.