An Automatic Safety Valve for the Prevention of the Total Collapsing of Internal Parts of Boilers.
Year: 1889

page_text: This Specification was, upon the 21st day of December 1889, Amended under
Sections 18 to 21 of the Patents, Designs, and Trade Marks Act, 1883.¯¯
Date of Application, 28th Mar., 1889
Complete Specification Left, 23rd Apr., 1889-Accepted, 13th July, 1889
PROVISIONAL SPECIFICATION.
An Automatic Safety Valve for the Prevention of the Total
Collapsing of Internal Parts of Boilers.
We ALEXANDER MCMASTER of Newtownards Road Ballymacarrett Belfast Engineer
and JOHN GEORGE TINLEY of Hibernia Street Holywood County Down Ireland
Engineer, do hereby declare the nature of this invention to be as follows :-
-
This invention has for its object the prevention of the total collapsing of furnace
crowns, sides, or other internal parts of Boilers, or other steaming apparatus caused
by shortness of water, scale, oil or other impurities collected thereon or other causes
whereby the parts named become overheated and have a tendency to collapse.
The invention consists of a small valve and seat screwed into or otherwise attached
to the furnace or other parts and kept in place by a spindle cast on the valve or
attached separately and supported, in a channel iron or other fixing which is stationary
so that when the part or parts effected have a tendency to collapse the seat leaves
the valve and admits steam or water, either directly.c
or by means of a pipe into the
fire.
It can be readjusted from the inside of the furnace by means of a square or other
contrivance on the tail of the valve, or from the outside of the Boiler or other
apparatus by means of the spindle being carried through the shell in a stuffing
box or other arrangement or by means of a lock cock when fitted with a pipe.
157.1. ט
1000
ALEXANDER MOMASTER.
JOHN GEORGE TINLEY.
COMPLETE SPECIFICATION (AMENDED).
An Automatic Safety Valve for the Prevention of the Total
Collapsing of Internal Parts of Boilers.
We ALEXANDER MCMASTER of Newtownards Road Ballymacarett Belfast Engineer
and JOHN GEORGE TINLEY of Hibernia Street Holywood County Down Ireland
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:-
This invention has for its object the prevention of the total collapsing of furnace
crowns, sides, or other internal parts of Boilers or other steaming apparatus, caused
by shortness of water, scale, oil, or other impurities collected thereon, or other
causes whereby the parts nained become over heated and have a tendency to collapse.
Also the detection of weak furnaces and other part when under water pressure.
The invention consists of a small valve and seat screwed into or otherwise
attached to the furnaces or other parts and kept in place by a spindle either cast
on the valve, or attached separately, and supported in a channel iron, or other fixing
which is stationary, so that when the part or parts effected have a tendency to collapse
the seat leaves the valve either immediately or gradually as arranged by means of
a cotter in the spindle and a slot in the valve, thereby admitting steam or water,
Prins Q77

page_text: lock-cock fitted with a pipe constructed and employed substantially in the manner herein-
before described and shewn in the drawings hereunto annexed and
7. The combination and arrangement of parts constituting our improved automatic
safety valve constructed attached and employed substantially in the manner and for the
purposes hereinbefore described and illustrated in the several sheets of drawings hereunto
annexed.
1000
A. MOMASTER.
JOHN GEORGE TINLEY.