ROVED MEANS FOR RAISING AND LOWERING THE CHIMNEYS OF PORTABLE AND OTHER ENGINES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, JOHN THOMAS SMITH of Peakirk (Market Deeping) in the County of
Northampton Machinist do hereby declare the nature of my Invention for
IMPROVED MEANS FOR RAISING AND LOWERING THE CHIMNEYS OF PORTABLE
AND OTHER ENGINES" to be as follows:-
This Invention has for its object to provide a simple and ready means for raising
and lowering the chimneys of portable and other engines.
For this purpose the upper and moveable part of the chimney is as heretofore
jointed by a hinge joint to the lower and fixed portion of the chimney so that it
may be turned downwards in a backward direction.
A short arm or lug is made to extend forwards from the bottom of the moveable
portion of the chimney.
This short arm or lug I make to incline downwards and either form it in such
manner that the end of a long lever arm may be screwed on to it or in such
manner that a long lever arm may otherwise be readily affixed to it.
To the outer end of the long lever arm I attach a length of chain.
When the chimney is to be raised or lowered the lever arm is secured to tho
projecting lug at the foot of the chimney and by it the chimney is turned
downwards.
As the chimney turns downwards the lever arm rises and when it is getting to
too high a position for a man standing on the ground to hold it the man can still
retain hold of the chain which hangs from its outor end and so lower the chimney
gradually.
To strengthen the chimney I connect the arm or lug which is at the foot of
the chimney by a stay to the funnel mouth which is at the top of the chimney.
Dated this 5th day of June 1884.

page_text: I, JOHN THOMAS SMITH of Peakirk (Market Deeping) in the County of
Northampton Machinist do hereby declare the nature of my Invention for
41 IMPROVED MEANS FOR RAISING AND LOWERING THE CHIMNEYS OF PORTABLE
AND OTHER ENGINES" 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 to provide a simple and ready means for raising
and lowering the chimneys of portable and other engines.
For this purpose the upper and moveable part of the chimney is as heretofore
jointed by a hinge joint to the lower and fixed portion of the chimney so that it
may be turned downwards in a backward direction.
A short arm or lug is made to extend forwards from the bottom of the moveable
portion of the chimney.
This short arm I make in such manner that the end of a long lever arm may
be screwed on to it or in such manner that a long lever arm may otherwise be
readily affixed to it.
When the chimney is to be raised or lowered the lever arm is secured to
the projecting arm at the foot of the chimney and by it the chimney is turned
downwards.
To strengthen the chimney I connect the arm which is at the foot of the chimney
by a stay to the funnel mouth which is at the top of the chimney.
In the Drawings hereunto annexed I have shown various ways in which my
Invention may be carried into effect.
In the constructions shewn at Figures 1, 2, 3, 4, 7 and 8 the arm is shown as
being made to project from the ordinary ring which surrounds the lower end of
the moveable portion of the chimney and which is hinged to a ring which surrounds
the upper part of the fixed portion of the chimney.
In Figures 5 and 6 it is shown as being made to project from a wrought iron
ring which is made to embrace the lower part of the chimney. This construction
is especially adapted for being applied to the chimneys of portable engines already
constructed.
Figure 1 is a side elevation of the chimney of an ordinary portable engine in
which the cast iron ring A which is at the bottom of the moveable portion of the
chimney is formed with an arm A' extending forwards from it and from the arm
projects a lug A'-B is a long iron rod or crow bar formed with a socket at one
end to fit on to the lug A3-it can either be secured to the lug by a pin or it
might be made to screw on or be otherwise secured to it-C is a tie rod passing
from the arm A' to the upper part of the chimney-In this Figure it is shewn as
being secured to the bell mouth top piece.
Figure 2 shews a similar construction except that the end of the iron crow bar B
is received into a socket formed in the arm A' which projects from the ring A-
and the upper end of the tie rod C is secured to a ring which embraces the upper
part of the chimney. In this Figure the chimney is represented in its erect
position in full lines the dotted lines show the chimney lowered down into a
horizontal position and resting in the ordinary chimney crutch. The iron bar B
I prefer to form with a point at one end and a chisel edge at the other so that it
may be used whenever desired as an ordinary crow-bar.
Figures 3 and 4 shew the same construction drawn to a larger scale.
Figures 5 and 6 show the arm A¹ formed as a separate piece of cast iron and
bolted to a wrought iron clip A* by which the lower part of the chimney is

page_text: embraced. This construction is especially useful as if clip rings of two or three
different diameters be provided one or other of the rings will almost always be
of a size adapted for grasping the base of the chimney and so the apparatus can
at once be applied to the chimney of any of the ordinary size of portable engine
now constructed.
Figures 7 and 8 show how the lever arm B may also be made to stay or sustain
the chimney at a point at some distance from its base when the chimney is being
lowered. It also shews that a cord or chain may be attached to the end of the
lever B if desired.
The stay or tie rod may in some cases be dispensed with.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be carried into effect I declare
that what I claim is :-
First. The improved means substantially as herein before described for raising
and lowering the chimneys of portable and other engines such means consisting of
a ring which embraces the chimney at or near its base and which has a short arm
projecting forwards from it from which a stay passes to the upper part of the
chimney and to which a long lever handle can be attached.
Second. The improved means for raising and lowering the chimneys of portable
and other engines substantially as hereinbefore described whether the chimney be
stayed by a tie rod or otherwise or be left unstayed.
CARPMAEL & Co.,
Agents for the Applicant.