Improvements in Regulating Devices for Gas and Petroleum Engines.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Regulating Devices for Gas and Petroleum
Engines.
I, CLAS AUGUST SUNDBERG, of Hornzgatan 186B, Stockholm, in the Kingdom of
Sweden, Engineer, do hereby declare the nature of this invention to be as
follows:-
The present invention relates to an arrangement in gas, and petroleum engines,
whereby the opening of the supply or outlet valve at each second stroke of the
engine shaft is effected without using tooth or other gearing, and further a more
uniform regulation of the motion of the engine is effected than would be the case if
the motion of the regulator is taken froin a shaft that makes only one stroke for.
every second stroke of the engine shaft.
The lower end of the valve rod is operated by an eccentric. The valve lever is at
its upper end provided with a removable cylinder, which has teeth as well at the
upper as at the lower end.
The spindle of the supply or outlet valve is also
provided with a toothed cylinder. This cylinder is by the wedge or key prevented
from turning around the supply valve spindle, which is movable up and down, but
not rotatable. The support for the valve lever is also provided with teeth, which
correspond with the lower teeth in the removable cylinder.
That the supply valve spindle is raised only at each second stroke of the engine
shaft, although the valve rod is lifted for each stroke, depends on the form and
position of the teeth. The arrangement is such, that the removable cylinder of the
valve rod is turned, both "when the said valve rod is raised and when it is lowered
and in this way the upper teeth of the cylinder will only at every second stroke
catch in the teeth of the cylinder on the supply valve spindle, while at every
alternate stroke the said upper teeth will enter between the spaces in the cylinder
on the supply valve spindle. In the former case the valve rod is lifted in the latter
case it is not.
The automatic turning of the removable cylinder is effected in the following
manner.
When the valve rod is raised the upper teeth of the removable cylinder on the said
rod will strike the teeth of the cylinder on the supply valve spindle and will, owing to
the form of the teeth ends turn the cylinder in the continued rising of the valve rod
to the central position, and from this position as the rod continues to rise the supply
valve spindle will be lifted by the said valve rod. When the rod is again lowered
the valve is shut, after which in the continued downward movement the lower teeth
on the cylinder will strike the teeth on the support and be further rotated, when the
rod has returned to its lowermost position.
When the valve rod is again raised the upper teeth of the removable cylinder will
engage the inclined sides of the teeth of the cylinder of the supply valve spindle so
that when the rod is still further raised to its uppermost position, it will turn at the
same time the cylinder, without lifting the valve spindle. When the valve rod is

page_text: then lowered, the lower teeth of the cylinder engage the teeth in the support sɔ that
in passing to its lowermost position the cylinder on the said rod will be turned into
such a position that when it is again raised, the described motion will be repeated.
The lower end of the upper part of the valve rod is provided with two notches.
The angular arın, one part of which forms the pawl for engaging said notches, is
rotatable around a pivot. To the said arm is pivoted an angular lever having a
weight at the end of one arm; it is further operated by a spring which may be
regulated by means of a screw and nut, so that the same in the normal operation of
the machine holds the angular arm in the position in which the vertical arm enters
a notch on a spindle, which can be raised and lowered in the fixed part where it is
operated upwards by a spring.
When by any means the speed of the machine is increased so that the rod is more
suddenly lowered, the weight prevents the same from following such increased speed,
whereby the arm is turned out of its position, so that the arm does not engage the
notch. The spring then presses the arm out of the notch in the valve rod so that,
when the rod is raised the next time, the upper part of it is left in its lowermost
position, thus leaving the valve shut, and this is repeated until the machine has
attained its normal speed, when the weight is lowered, so that the vertical arm of
the weighted lever again engages the notch, whereby the angular arm is pressed into
the notch in the valve rod, in order that in the next rising of the rod it will take with
it the upper part and open the valve.
Dated this 23rd dow of March 1907
HASELTINE, LAKE & Co.,
45, Southampton Buildings, W.C., Agents for the Applicant.
Improvements in Regulating Devices for Gas and Petroleum
Engines.
:
I, CLAS AUGUST SUNDBERG, of Hornzgatan 186B, Stockholm, in the Kingdom of
Sweden, Engineer, 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 present invention relates to an arrangement in gas and petroleum engines
whereby the opening of the supply or outlet valve at each second stroke of the
engine shaft is effected without using toothed or other gearing, and further a more
uniform regulation of the motion of the engine is effected than would be the case
if the motion of the regulator is taken from a shaft that makes only one stroke for
every second stroke of the engine shaft.
In the accompanying drawing
Figure 1 is a side elevation of the device partly in section.
Figure 2 shows diagrammatically a development of the toothed cylinders.
A is the valve lever which at its lower end
operated by an eccentric. B is the
spindle of the supply or outlet valve, Cis a support. The valve lever A is at its
upper end provided with a removable cylinder D, which is provided with teeth as
well at the upper as at the lower end, the form of which is shown in Figure 2. The
spindle B is also provided with a toothed cylinder E, the teeth of which are also
shown in Figure 2. This cylinder E is by the wedge or peg F prevented from turning
around the supply valve spindle B, which is movable up and down, but not rotatable.

page_text: The support C for the valve lever is also provided with teeth, which correspond
with the lower teeth in the removable cylinder D (Figure 2).
That the supply valve spindle B is raised only at each second stroke of the engine
shaft, although the valve rod A is lifted for each stroke, depends on the form and
position of the teeth. The arrangement is such, that the removable cylinder D of
the valve rod is turned, both when the said valve rod A is raised and when it is
lowered and in this way the upper teeth D of the cylinder will only at every second
stroke catch in the teeth of the cylinder on the supply valve spindle while at every
alternate stroke the said upper teeth will enter between the spaces in the cylinder
on the supply valve spindle. In the former case the valve rod is lifted in the latter
case it is not.
manner.
The automatic turning of the removable cylinder D is effected in the following
The total lift of the rod A, which corresponds with the excentricity of the
dise is indicated by the position 3-3 in Figure 2. Figure 1 and the full lines in
Figure 2 show the mutual position of the teeth when the rod A is in its lowermost
position and the valve is shut.
When the valve rod A is raised the upper teeth of the cylinder D in the said rod
will strike the teeth of the cylinder E as shown in the position 4, and will owing to
the form of the teeth ends turn the cylinder D in the continued rising of the valve
rod to the central position 5 and from this position as the rod continues to rise
the supply valve spindle will be lifted by the said valve rod to the position 3
thereby lifting the valve spindle B. When the rod is again lowered to the position 5
the valve is shut, after which in the continued downward movement the lower
teeth on the cylinder will strike the teeth on the support C as shown in the position
marked 6, and be further rotated to the position 7, when the rod A has returned
to its lowermost position.
When the valve rod A is again raised the upper teeth of the removable cylinder D
will engage the inclined sides of the teeth of the cylinder E as shown by the
position, marked 8, so that when the rod is still further raised to its uppermost
position, it will turn at the same time the cylinder D to the position 9, without
lifting the valve spindle. When the valve rod A is then lowered, the lower teeth of
the cylinder D engage the teeth in the support C as shown by the position marked 4,
so that in passing to its lowerinost position, the. cylinder 1) on the said rod will be
turned into the position shown in full lines, so that when it is again raised, the
described motion will be repeated.
The lower end of the upper part of the valve rod A is provided with a notch H.
The angular arm K one part of which forms the pawl for engaging said notches is
rotatable around a pivot L. To the said arm is pivoted an angular lever consisting
of an arm M having a weight N and of a thin arm O the said angular lever being
pivoted at P to the arm K and acted upon by a spring R, which may be regulated
by means of a screw S and nut T, so that the same in the normal operation of the
machine holds the angular arm M in the position shown on the drawing, or so
that the arm O enters a notch U on a spindle V, which can be raised and lowered
in the fixed part Z where it is operated upwards by a spring a.
The drawing shows the device in its lowermost position. The spindle V is then
pressed down and the spring x acts upon the spindle and the arm O and keeps the
pawl in engagement with the notch H.
When by any means the speed of the machine is increased, so that the rod is
more suddenly lowered, the weight N prevents the same from following such
increased speed whereby the arm is turned out of its position, so that the arm o
does not engage the notch U. The spring y then presses the pawl out of the
notch H in the valve rod so that, when the rod is raised the next time, the upper
part of it is left in its lowermost position, thus leaving the valve shut, and this is
repeated until the machine has attained its normal speed when the weight is lowered,
so that the arm 0 of the weighted lever again engages the notch U, whereby the
angular arm K is pressed into the notch H, in order that in the next rising of the
rod it will take with it the upper part and open the valve.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
1. In regulating devices for gas and petroleum engines a spring closed valve,
having a spindle provided at its end with a toothed cylinder or tappet adapted to
be displaced longitudinally with said spindle in combination with a rotatable tappet
cylinder provided with teeth at either end, a guide for the spindle of the rotatable
tappet having teeth on its face, said rotatable tappet being adapted to be revolved
by engagement with the aforementioned toothed tappet and the teeth on the guide,
substantially as and for the purpose set forth.
2. In regulating devices for gas and petroleum engines a spring closed-valve
provided with a toothed tappet on its spindle and, in combination with a double
ended toothed tappet rotatable on its spindle, a guide for said spindle having teeth
on its face, the teeth of these respective co-operating elements being so formed as to.
turn the rotatable tappet by its alternate engagement with the guide face and tappet
in the valve spindle, substantially as and for the purpose set forth.
3. In regulating devices for gas and petroleum engines, a tooth faced guide, a
tappet on the valve spindle provided with a set of teeth out of register with the series
of teeth on the guide face, the intermediate double-ended toothed tappet being
adapted to alternately engage both series of teeth and thereby receive a step-by-step
rotation, for the purpose set forth.
4. In regulating devices for gas and petroleum engines a governor comprising a
bell crank lever hinged to the end of the eccentric rod, a weight hinged to one arm
of said lever, an arm perpendicular to said weight and normally having sliding
contact with a guide piece, substantially as set forth.
5. In regulating devices for gas and petroleum engines a governor comprising a
bell crank lever hinged to the end of the eccentric rod, whose longer arm operates a
tappet when running normal, a weight hinged to its shorter arm, an arm extending
from said weight, a buffer spring between the eccentric rod and the aforementioned
arm, and a yielding guide, provided with a notch at the end of a guide surface
thereon, into which the arm extending from the weight slides, substantially as set
forth.
Pattu IIS
ресстрет Του1.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.