IMPROVEMENTS IN GOVERNORS FOR STEAM AND OTHER MOTIVE POWER ENGINES
Year: 1881

page_text: LETTERS PATENT to Peirson Turner, of St. Peter's Iron Works, Ipswich, in
the County of Suffolk, for an Invention of "IMPROVEMENTS IN GOVERNORS
FOR STEAM AND OTHER MOTIVE POWER ENGINES."
PROVISIONAL SPECIFICATION left by the said Peirson Turner at the Office
of the Commissioners of Patents on the 15th October 1881.
PEIRSON TURNER, of St. Peter's Iron Works, Ipswich, in the County of
Suffolk. "IMPROVEMENTS IN GOVERNORS FOR STEAM AND OTHER MOTIVE POWER
ENGINES."
This Invention has for its object improvements in governors for steam and other
motive power engines.
The improved governor is a modification and simplification of the Hartnell and
Guthrie governor (Patent No. 325, in the year 1868).
The body of the improved governor consists of a boss keyed upon the engine
shaft and having broad disc-like flanges at its ends. One flange is removeable to
admit of the governor weights, and other parts of the governor being mounted
between the flanges.
The weights are so formed that they embrace the boss of the governor body
between them, and they are cast with necks, which being received into corresponding
holes in the flanges of the governor body serve as axes upon which the weights are
able to swing. The weights are thus suspended each by one end, and can move in
a plane at right angles to the engine shaft. The two centres of motion are
equidistant from the shaft and diametrically opposite, springs are provided which
tend to press the weights inwards towards the central boss of the governor, and
centrifugal action tends (when the engine is in movement) to impel the weights in
the opposite direction.
The eccentric for actuating the valve of the engine is a ring at the side of the
governor body and surrounding the engine shaft; it is provided with a pair of lugs
one on either side, and by these lugs the eccentric is carried. A bolt passes through

page_text: each lug and also through the neck or axis of one of the governor weights. The
bolt in each case passes through the weight at a distance from the centre of
movement, so that the weights in approaching to or receding from the engine shaft
alter the position of the eccentric relatively to the engine shaft and crank.
The neck or axis of each weight is usually provided with two bolt holes on
opposite sides of the centre of the neck, and if the engine has to be run in the
reverse direction the bolt is shifted from the one hole to the other. Each lug of
the eccentric is similarly provided with two bolt holes.
Or to admit of the reversal of the engine whilst in movement, two eccentrics,
a forward and a backward, may be provided; they are placed at the opposite sides
of the governor body and operate a link motion.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Peirson Turner in the Great Seal Patent Office on the 15th April
1882.
PEIRSON TURNER, St. Peter's Iron Works, Ipswich, in the County of
Suffolk. "IMPROVEMENTS IN GOVERNORS FOR STEAM AND OTHER MOTIVE POWER
ENGINES."
This Invention has for its object improvements in governors for steam and other
motive power engines."
The improved governor is a modification and simplification of the Hartnell and
Guthrie governor (Patent No. 325 in the year 1868).
The body of the improved governor consists of a boss, keyed upon the engine
shaft and having broad disc like flanges at its ends. One flange is removeable to
admit of the governor weights and other parts of the governor being mounted
between the flanges.
The weights are so formed that they embrace the boss of the governor body
between them, and they are cast with necks, which being received into corresponding
holes in the flanges of the governor body, serve as axes upon which the weights
are able to swing. The weights are thus suspended each by one end, and can
move in a plane at right angles to the engine shaft. The two centres of motion
are equidistant from the shaft and diametrically opposite. Springs are provided
which tend to press the weights inwards towards the central boss of the governor,
and centrifugal action tends (when the engine is in movement) to impel the weights
in the opposite direction.
The eccentric for actuating the valve of the engine is a ring at the side of the
governor body and surrounding the engine shaft; it is provided with a pair of
lugs, one on either side, and by these lugs the eccentric is carried. A bolt passes
through each lug and also through the neck or axis of one of the governor weights.
The bolt in each case passes through the weight at a distance from the centre of
movement so that the weights in approaching to or receding from the engine
shaft alter the position of the eccentric relatively to the engine shaft and crank.
The neck or axis of each weight is usually provided with two bolt holes on
opposite sides of the centre of the neck, and if the engine has to be run in the
reverse direction the bolt is shifted from the one hole to the other. Each lug of
the eccentric is similarly provided with two bolt holes.
Or to admit of the reversal of the engine whilst in movement, two eccentrics, a
forward and a backward, may be provided, they are placed at the opposite sides of
the governor body and operate a link motion.
In order that my said Invention may be most fully understood and readily
carried into effect, I will proceed to describe the Drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 and Figure 2 are sections of a governor constructed according to my
Invention; in Figure 1 the section is taken transversely to the shaft of the engine,
and in Figure 2 the section is in the plane of the shaft; Figure 3 is a side elevation.
A is the shaft, and B is a boss keyed upon it. The boss has two flanges; the
flange B' is cast with the boss, but the flange B2 is a separate piece secured by the
bolts C, C. The boss B is also provided with wings B³, B³, which serve as
abutments for the springs; D, D, are the governor weights, and D', D', are necks
upon the weights; they are received into holes in the flanges B¹ and B'; E, E, are

page_text: rods jointed to the weights; they pass through holes in the wings B³ and are
surrounded by the springs F, F; E', E¹, are discs carried upon the outer ends of
the rods E and adjustable by screw and nut. The springs F, pressing against the
discs E¹ tend to draw the weights inwards towards the shaft A; G is the eccentric
by which the valve of the engine is actuated, it is provided with two lugs G¹, G'.
The eccentric is connected with the weights by bolts H, H, passing through the
necks of the weights, but in such a manner as to permit of the free movement of
the weights. The bolts H, H, can be removed when it is required to set the
engine to run in the reversed direction; the bolts are then inserted into the
holes D*, D*, in the weights and the holes G*, G*, in the lugs of the eccentric.
For engines which require frequent reversal a second eccentric is provided upon
the other side of the boss B, and is connected with the weights by pins received
into these second holes. The two eccentrics work a reversing link in the usual
way.
In this governor the construction is simple and the parts are few; the eccentric
is connected with the weights directly and without intermediate parts; the eccentric
also serves to connect the weights and to render their movements simultaneous.
The mode of reversing by altering the position of the attachment between the
eccentric and the weights is very simple and convenient.
The governor provides for the use of a reversing link in a very simple and
efficient manner.
Having thus described the nature of my said Invention and the manner of
performing the same, I would have it understood that I claim my improved
governor, substantially as described.
In witness whereof, I, the said Peirson Turner, have hereunto set my hand and
seal, this Fourteenth day of April, in the year of our Lord one thousand
eight hundred and eighty two.