AN IMPROVED DAMPER REGULATOR
Year: 1882

page_text: LETTERS PATENT to Samuel Pearce Wilding of the firm of Fell & Wilding of
23 Rood Lane in the city of London Patent Agents for an Invention of
"AN IMPROVED DAMPER REGULATOR" A communication from abroad by
Valentine H. Hallock of Brooklyn in the United States of North America
PROVISIONAL SPECIFICATION left by the said Samuel Pearce Wilding at
the Office of the Commissioners of Patents on the 2nd March 1882.
SAMUEL PEARCE WILDING of the firm of Fell & Wilding of 23 Rood Lane
in the City of London Patent Agents "AN IMPROVED DAMPER REGULATOR"
A communication from abroad by Valentine H. Hallock of Brooklyn in the United
States of North America
The said invention relates to a novel construction of damper regulator, and is
designed to automatically and sensitively regulate the action of the dampers of
steam boiler furnaces, and being controlled by the steam pressure, is uniform in its
action, thus giving regularity of power, and economy in fuel, and adding greatly
to the safety of the boiler.
The device consists of a plunger, weighted according to the pressure required,
and controlling the damper by means of a chain or cord passing over suitable pulleys.
This plunger works in a cylinder, with suitable gland, and is operated by pressure
from an adjoining water-chamber, connected directly to the steam pressure.
When the steam overcomes the weighted plunger, and causes it to rise in the
cylinder, such rise causes the chain attached to the plunger to more or less close the
damper, and reduce the draught, until, the excessive pressure being reduced, the
plunger sinks to its normal position, and the damper is again opened to its fullest
extent,

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Samuel Pearce Wilding in the Great Seal Patent Office on the
2nd September 1882.
SAMUEL PEARCE WILDING of the firm of Fell and Wilding, of 23 Rood Lane
in the City of London, Patent Agents. AN IMPROVED DAMPER REGULATOR
A communication from abroad by Valentine H. Hallock of Brooklyn in the United
States of North America
The said invention relates to a novel construction of damper regulator, and is
designed to automatically and sensitively regulate the action of the dampers of
steam boiler furnaces, and, being controlled by the steam pressure, is uniform in its
action, thus giving regularity of power and economy in fuel, and adding greatly to
the safety of the boiler.
The device consists of a plunger weighted according to the pressure required, and
controlling the damper by means of a chain or cord passing over suitable pulleys.-
This plunger works in a cylinder with suitable gland, and is operated by pressure
from an adjoining water chamber, connected directly to the steam pressure.
When the steam overcomes the weighted plunger, and causes it to rise in the
cylinder, such rise causes the chain attached to the plunger to more or less close
the damper, and reduce the draught, until the excessive pressure being reduced,
the plunger sinks to its normal position, and the damper is again opened to its
fullest extent.
And in order that the said invention may be the better understood, I now
proceed to describe the drawings hereunto annexed, reference being had to the
figures and letters marked thereon.
Fig. 1. is a sectional elevation of the improved damper regulator operating the
damper shown in Figure 2.
Figure 3 is an elevation of a modified arrangement of the damper regulator.
Like letters refer to similar parts in the various figures.
A. is a plunger, working in the cylinder B, through the steam tight gland D.
To the top of the plunger A is fixed a cross-head E, from which, in the first
arrangement (Figure 1), hang two stays or rods F, terminated by another cross-
head G, to which a series of weights H, are added as required.
In the alternative and modified arrangement (Figure 3) these side rods F and
lower cross-head G are dispensed with, and the weights H¹ are loaded on to the
upper cross-head E, being provided with suitable slots to embrace the guide
rod K.
This guide rod travels between two pulleys or rollers L, mounted on the timber
frame M, to which the whole apparatus is attached. The guide rod ensures the
easy and vertical travel of the plunger, and is attached to the chain N, operating
the damper O.
The steam operating the plunger A is brought into the apparatus by the pipe P,
passing into a water chamber C in device Figure 1, or into a coiled pipe, device
Figure 2 for the accumulation of condensed water.
A suitable stop cock Q is provided in the steam pipe P¹, and also a blow off
stop cock R, for cleansing out dirt when required.
And having now fully described and ascertained the manner in which the said
invention is to be carried into effect be it known that what I claim as novel and
which I desire to protect by letters patent is :-
1st The construction of the apparatus consisting of a weighted plunger working
in a steam tight cylinder, operated through a water cushion by the variable steam

page_text: pressure of a boiler, to regulate the boiler damper as described in reference to
Figs. 1 and 2.
2nd The construction of alternative apparatus with a modified arrangement of
weight and condensing coil, as and for the purposes substantially as described in
reference to Figure 3.
In witness whereof I the said Samuel Pearce Wilding have hereunto set my
hand and seal this second day of September in the year of our Lord One
thousand eight hundred and eighty-two.
SAM. P. WILDING. (L.S.)