Improvements in High Speed and other Steam Engines and Fluid Motors.
Year: 1890

page_text: Date of Application, 22nd Apr., 1890
Complete Specification Left, 18th Feb., 1891-Accepted, 18th Apr., 1891
PROVISIONAL SPECIFICATION.
Improvements in High Speed and other Steam Engines and
Fluid Motors.
WILLIAM TURNER LORD, Stamford Brook Villa, Hammersmith, London, W.,.
Designer, do hereby declare the nature of this invention to be as follows:-
My arrangement has for its purpose the economical use of steam, or other power
conveying fluids and is expressly applicable to the type of engine known as the
Newall.
To effect my purpose form a steam chest at the end of the high pressure
cylinder & on the end of the high pressure piston is fitted a tube or plunger, or
smaller piston with suitable openings or shapings, which passes or slides through a
corresponding opening in the base of the steam chest, for the purpose of passing
steam from the chest to the cylinder, and in the case of application to the Newall
type of engine, the lower end of this piece will be opened and closed by the action
of the oscillating, or slide valve, fixed in the end of the piston. In the steam
chest, is placed a sleeve, or plunger, or slide, arranged to work against the moving
piece, and shaped or pierced to control the admission of steam, this can, at will,
be geared to the engine to form an automatic cut off or governor either by the
parts moving against each other either telescopically, laterally, or by rotary
action, and thereby opening or closing the steam ports in accordance with the
requirements of the load.
I also arrange the plunger, with the purpose of obtaining a steam cushion: or
thrust to prevent play, and keep all parts in contact.
Dated this 21st day of April 1890.
WILLIAM TURNER LORD.
COMPLETE SPECIFICATION.
Improvements in High Speed and other Steam Engines and
Fluid Motors.
WILLIAM TURNER LORD, Stamford Brook Villa, Hammersmith, Architect,
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 :-
The object of this invention is to improve engines capable of running at a high
speed, specially by the arrangement of an automatic cut off, or governing arrangement,
this being also applicable to other engines.
To illustrate it, I give a drawing marked 1 in which Fig. 1 is a section of a high
pressure engine shewing the combination of a trunk piston C C with a tube or
slide D attached, having openings E for the admission of steam from the steam
chest F.
Also in the trunk piston, an oscillating valve G, working in connection
with the inlet ports H H, and exhaust ports J. J. In any convenient part of the
casting K K is a chamber L, either circular or otherwise on plan, having either a
piston or other suitable slide M connected to a rod passing to a handle or governor.
In this chamber are several seperate tiers of ports O, & passages, communicating
with corresponding sets in the central opening N, sections through one of them
being shewn in Figs. 3 & 4 and a vertical section shewing the ports in Figure 5.
According to the height to which M is raised, the passage of steam or other fluid
through the ports in L and in N and through the openings E in D, will be

page_text: permitted, through a proportionate portion of the stroke, the steam meanwhile
proceeding through the passages H H and port S into the cylinder P, and later,
when the valve is oscillated at the end of the stroke, through the passages JJ to
exhaust, or for further expansion in compound or other engines..
Figs. 2. 6. 7 & 8 represent a modification of the same principle, in which case a
collar or sleeve Q, having tiers of steam passages is made to slide round the
outside of the cylindrical extension R in the steam box F, and according to the
extent to which it is moved, opens communication with successive tiers of openings
and regulates the supply of steam to the ports E in D.
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 what I
claim is :-
1. The general arrangement and combination as herein described.
2. The combination of a trunk piston with tubular extension, in conjunction
with an oscillating valve; substantially as herein described.
3. The combination of a trunk piston containing an oscillating valve at the
base of a tubular extension; working in a cylindrical passage, having series of
passages and a sleeve arranged to open or close the passages as herein described.
4. The combination of a cylindrical or other shaped chamber having tiers. of
passages to convey steam to a main passage, and a cylindrical or other shaped slide
working in the said chamber to control the admission, or cut off of steam as herein
described.
Dated this 30th day of January 1891
WM. TURNER LORD.