CERTAIN NEW AND USEFUL IMPROVEMENTS IN THE OSCILLATING STEAM ENGINE
Year: 1855

page_text: LETTERS PATENT to Auguste Edouard Loradoux Bellford, of 32, Essex
Street, Strand, London, Patent Agent, for the Invention of "CERTAIN
NEW AND USEFUL IMPROVEMENTS IN THE OSCILLATING STEAM ENGINE."―A
communication from John Andrew Reed, of New York, in the United
States of America.
Sealed the 24th August 1855, and dated the 5th March 1855.
PROVISIONAL SPECIFICATION left by the said Auguste Edouard Loradoux
Bellford at the Office of the Commissioners of Patents, with his Petition,
on the 5th March 1855.
I, AUGUSTE EDOUARD LORADOUX BELLFORD, of 32, Essex Street, Strand,
London, Patent Agent, do hereby declare the nature of the said Inven-
tion for "CERTAIN NEW AND USEFUL IMPROVEMENTS IN THE OSCILLATING STEAM.
ENGINE" to be as follows:-
The Invention consists, firstly, in the employment of ports and valves in or
around both trunnions of the cylinder, through which the steam enters the
cylinder on both sides at the same time, and from points opposite each other,
and thus the steam counteracts and balances itself, and prevents the friction
and strain which is occasioned by taking in the steam on one side only at a
time. The trunnions on which the cylinder oscillates are made of conical form,
tapering from the cylinder, and fit to conical seats.

page_text: And this Invention consists, secondly, in making the trunnion bearings
adjustable to the trunnions by set screws, so applied as to adapt the conical
trunnions to their conical seats to tighten the valve, and compensate for the
wearing by friction, should the friction in its scat render it necessary. Thus
a better mode will be provided of introducing the steam into the cylinder and
for its escape, and to save friction and expense in the in the construction and
use of the engine.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Auguste Edouard Loradoux Bellford in the Great Scal
Patent Office on the 27th August 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, AUGUSTE
EDOUARD LORADOUX BELLFORD, of 32, Essex Street, Strand, London, Patent
Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifth day of March, in the year of our Lord
One thousand eight hundred and fifty-five, in the eighteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Auguste Edouard Loradoux Bellford, Iler special licence that I, the
said Auguste Edouard Loradoux Bellford, my executors, administrators, and
assigns, or such others as I, the said Auguste Edouard Loradoux Bellford, my
executors, administrators, and assigus, should at any time agree with, and no
others, from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend, within
the United Kingdom of Great Britain and Ireland, the Chanuel Islands,
and Isle of Man, an Invention for "CERTAIN NEW AND USEFUL IMPROVEMENTS
IN THE OSCILLATING STEAM ENGINE," a communication from John Andrew Reed,
of New York, in the United States of America, upon the condition (amongst
others) that I, the said Auguste Edouard Loradoux Bellford, by an instru-
ment in writing under my hand and seal, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same
was to be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said Auguste Edouard Loradoux Bellford, do
hereby declare the nature of the said Invention and in what manner the con

page_text: is to be performed, to be particularly described and ascertained in and by the
following statement, that is to say :—
The object of this Invention is to provide a better mode of introducing the
steam into the cylinder and for its escape, and to save friction and expense in
the construction and use of the engine.
The Invention consists, firstly, in the employment of ports and valves in or
around both trunnions of the cylinder, through which the steam enters the
cylinder on both sides at the same time, and from points opposite each other,
and thus the steam counteracts and balances itself, and prevents the friction
and strain which is occasioned by taking in the steam on one side only at a
time. I make the trunnions on which the cylinder oscillates of conical form,
tapering from the cylinder, and fit to conical seats.
And this Invention consists, secondly, in making the trunnion bearings
adjustable to the trunnions by set screws, so applied as to adapt the conical
trunnions to their conical seats to tighten the valve, and compensate for the
wearing by friction, should the friction in its sent render it necessary.
The accompanying Drawings form part of this Specification, and fully
illustrate my Invention.
Fig. 1 is a side view of an engine constructed according to my Invention;
Fig. 2 is a transverse section of the same through the trunnions; Fig. 3 is a
side view of the cylinder with the bearing removed, showing the valve seat and
ports; Fig. 4 is a longitudinal central section of the cylinder and passages;
Fig. 5 is a face view of one of the trunnion bearings and valves; Fig. 6 is a
section of one of the trunnion bearings transversely to the axis of the trunnion,
showing the chambers in the valve; Fig. 7 is a bottom view of the trunnion
bearing. Similar letters of reference indicate corresponding parts in the
several Figures.
A is the cylinder; and B, the trunnion bearings, which also constitute the
valves. a, a, are the induction pipes, passing through the tops of the trunnion
bearings; ff, are the openings in the valve, through which the steam passes
into the ports of the cylinder from the induction pipe; 9, 9, openings through
which the steam passes from the ports of the cylinder to the eduction pipes b, b,
at the bottom of the trunnion bearings; c, c, are the ports in the valve seat;
e, e, the partitions dividing the induction and eduction chambers in the valves;
d, d, are the trunnions; d', d', the set screws for adjusting the trunnion
bearings. These screws pass through the outsides or ends of the bearings, and
screw into the ends of the trunnions. The bolts which secure the bearings to
the bed plate pass through slots h, h, which admit of the bearing being moved
to adjust the conical sents i to the trunnions by means of the set screws.

page_text: Having thus described the nature of the said Invention, and the manner
in which the same is or may be carried into effect, I wish it to be understood
that what I claim is,-
First, arranging and placing the steam ports and valves in or around the
trunnions on each side of the cylinder, substantially as herein described, so as
to let the steam in on both sides of the cylinder at the same time at opposite
points, so as that the steam from opposite points may meet in the cylinder, and
so balance the pressure as to prevent that severe friction and strain which is
occasioned by letting the steam in on one side only of the cylinder at a time.
Second, the trunnion bearings made adjustable to the trunnions by the set
screws, and so arranged that the conical trunnions may be accurately adapted
to the conical seats, as herein set forth.
In witness whereof, I, the said Auguste Edouard Loradoux Bellford,
have hereunto set my hand and seal, this Twenty-seventh day of
August, in the year of our Lord One thousand eight hundred and
fifty-five.
A. E. LORADOUX BELLFORD. (L.S.)