Improvements in Rotary Engines adapted for Drilling, Boring, and the like.
Year: 1898

page_text: Date of Application, 9th Mar., 1898-Accepted, 9th July, 1898
COMPLETE SPECIFICATION.
Improvements in Rotary Engines adapted for Drilling, Boring, and
the like.
We, JULIUS KELLER and CHARLES HERMAN HAESELER, both of 1026, Hamilton
Street, Philadelphia, Pennsylvania, United States of America, Manufacturers,
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:-
-
Our invention consists of an improved rotary engine, adapted for drilling,
boring and the like, which has a stationary valve, an eccentric stem
on said
valve and an oil port leading therethrough to an internal lubricant chamber
into which said stem extends, said valve having inlet and exhaust chambers and
ports therefor, and serving as a bearing for the upper portion of the engine
cylinders and also as a conduit for the lubricant to the interior of the engine.
It also consists of an improved power transmission device, in which a bar is
employed having journals projecting therefrom, said journals being provided
with pinions of different diameters, which rotate in unison, one of said pinions
meshing with a stationary gear, while the other of said pinions meshes with a
rotary gear, the latter carrying a rotatable tool holding spindle.
It also consists of a novel construction of engine casing, having ports for the
inlet and egress of motive fluid, which are located with respect to the stationary
valve employed, so that space and material is economized.
In the accompanying drawings,
Figure 1 represents a vertical section on line a―a Figure 2, of an engine em-
bodying our invention.
Figure 2 represents a transverse section on line y-y Figure 1.
Figure 3 represents a side elevation, partly in section, of a feeding device.
Figure 4 represents a longitudinal sectional view of an engine, having a
modified construction of power transmission devices.
Figure 5 represents a section on line z-z Figure 4, on an enlarged scale.
Figure 6 represents a plan view of a valve in detached position.
Figure 7 represents a transverse section of said valve, on line a¹¹ Figure 6.
Figure 8 represents a transverse section of the valve on line y-y¹, Figure 6.
Figure 9 represents a section on line Figure 7.
1 designates an engine consisting of a casing 2, having a tube or inlet 3 for
the motive fluid, which discharges into the chamber 4, in which is located a
valve 5, controlling the passage 6, the latter leading to the inlet port 7 of the
valve 8, which has the base 9 provided with the upwardly extending annular
wall 10, the outer periphery of which serves as a bearing for the upper portion
of the engine cylinders.
11 designates the top of the valve, the same having the stem 12 projecting
therefrom, the upper portion of said stem being threaded and projecting above
the casing 2 when the parts are assembled and being engaged by the nuts 13,

page_text: the wall 10 of the valve being provided with the ports 7 and 8* Figure 7 for the
admission and exhaust of the motive fluid.
14 designates a partition which divides the valve into the inlet and exhaust
chambers 15 and 16, said chamber 15 being in communication with the inlet
port 7, while the chamber 16 communicates with the exhaust port 17, the latter
leading to the exhaust passage 18, which discharges through the tube 19, the
tubes 3 and 19 which serve as inlet and exhaust passages, being utilized as
the handles of the engine.
20 designates a plurality of rotatable cylinders, which revolve in unison, and
consist of a central lubricant chamber 24 having the extensions 21, which serve
as the cylinders proper, which latter may be increased or diminished according
to requirements, each cylinder having the passage 22 and the port 23 leading to
the end thereof.
24 designates pistons, each having pivotally attached thereto, an end of a
piston rod 25, the other end thereof engaging the stem 26, which projects eccen-
trically from the valve 8.
Special attention is called to the function of the chamber 24* which serves as
a receptacle for the lubricant employed, whereby the engine is effectively lubri-
cated under all conditions.
The upper portion 27 of the cylinders 20 has its bearing on the outer periphery
of the wall 10 of the valve 8, said cylinders having projecting from their lower
portion, the journal 28, which revolves in the wall 29 of the plate or spider 30,
said member 29 in Figure 4 forming a part of the plate or spider 40.
In Figure 1 the plate or spider has a thickened portion 31, which serves as a
bearing for the upper extremity of the shaft 32, the lower portion of the latter
having its bearing in the bottom bearing plate 32*.
33 designates a gear mounted on the shaft 32 and adapted to mesh with the
pinion 34, which latter is provided with a stem 35 which is secured to the
journal 28.
36 designates a pinion on the shaft 32 in mesh with the gear 37, which latter
is secured in any suitable manner to the spindle 38, the lower portion 39 of
which is adapted to hold the tool or drill.
In Figure 4 is shown another embodiment of our invention, in which the
power transmission devices are slightly modified.
The lower journal 28 of the engine cylinders revolves in the bearing 29, which
projects from the plate 40.
42 designates a bar having the stem 41 projecting therefrom, said stem being
secured to the journal 28, and revolving in unison therewith.
43 designates journals projecting from the bar 42, each of said journals having
rotatably mounted thereon the pinions 44 and 45 of different diameters.
The pinions 45 of larger diameter mesh with the stationary gear 46, which
has a threaded hub 47, which is secured to the bottom bearing plate 48*.
The smaller pinions 44, which revolve' in unison with the pinions 45, mesh
with the gear 51, which is secured to the portion 50 of the spindle 49, the latter
revolving within the bearing 52.
The feeding devices 52* seen in Figure 3, consist of a stem 53 having a
threaded socket 54 for engagement with the engine casing, said stem being
in threaded engagement with the sleeve 55, which is provided with the centre 56.
The motive fluid enters the passage 6, port 7, and chamber 15, and passes
through the port 7* into the contiguous cylinder 21 and acting upon the proper
piston 24, imparts rotation to the engine cylinders, the fluid being exhausted
through the chamber 16, port 17 and exhaust passage 18 and 19. The rotation
of the cylinders will be imparted through the medium of the journal 28 and the
pinions 4 in the construction seen in Figure 1 to the gear 33, the shaft 32 and.
pinion 36 to the gear 37 and the spindle 38.
In Figure 4 the rotation of the journal 28 causes to revolve in unison with
it the bar 42, which carries the sets of pinions 44 and 45.

page_text: The rotation of the bar 42 causes said pinions 44 and 45 to have an indepen-
dent rotation by reason of their engagement with the stationary gear 46, thereby
imparting rotation to the gear 51 and the spindle 49.
The manner of lubricating the engine will now be described, referring to
Figures 6 to 9 inclusive.
The oil port 14 in the valve 8 communicates with the exterior of the casing 2
and oil can flow through the valve into the chamber 24, and when the desired
quantity of lubricant has been introduced thereinto, the vent (not shown) in the
casing 2 is closed.
The lubricant being contained within the chamber 24* formed between the
pistons 24 is not subjected to the action of the motive fluid and is utilized to the
fullest extent, since there is no waste of the lubricant and the same is retained
within the engine at the points where it is most essential that it should be applied,
namely, within the cylinders 21 and about the eccentric stem 26 and there is
furthermore no liability of the lubricant being expelled from the engine; since
it cannot escape from the lubricant chamber, except by passing the pistons 24,
which cannot happen, if said pistons properly fit their respective cylinders.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that
what we claim is:-
1st. In an engine, cylinders adapted to rotate bodily or in unison, a stationary
valve, adapted to form a bearing for the upper portion of said cylinders, an oil
port extending from the exterior of the engine through said valve into said
cylinders and means for effecting the rotation of the latter.
2nd. In an engine, a plurality of rotatable cylinders, a stationary valve, ports
leading from said valve to the ends of said cylinders, the central portion of the
latter serving as a lubricant chamber, a port extending through said valve, but
out of communication therewith to said chamber, and means for rotating said
cylinders.
3rd. An engine consisting of a casing, a plurality of rotatable cylinders
therein, a stationary valve secured to said casing, inlet and exhaust ports leading
from said valve to the ends of said cylinders, a portion of said cylinders serving
as a lubricant chamber and a port extending through said valve directly to said
lubricant chamber, in combination with means for rotating said cylinders and
means for transmitting power to a drill or other tool.
4th. In an engine, a casing, a stationary valve located therein, an eccentric
stem projecting from said valve, inlet and exhaust chambers contained within
the latter, ports leading to and from said chambers, a plurality of cylinders
rotatably mounted within said casing, said valve serving as a bearing for the
upper portion of said cylinders, pistons located in said cylinders, piston rods
common. to said pistons and eccentric stem, the central portion of said cylinders
forming a lubricant chamber and a port leading from the casing of said engine
through said valve to said lubricant chamber.
5th. In an engine, a casing, a valve consisting of a base, an upwardly ex-
tending wall of substantially uniform diameter the outer periphery thereof
serving as a bearing for a plurality of cylinders adapted to rotate in said casing,
an eccentrically-located stem projecting from said valve into said casing, said
valve having an oil port leading therethrough into said cylinders,
pistons in said cylinders, ports and passages leading to the ex-
tremities of said cylinders, rods common to said pistons and stem,
a journal depending from said cylinders, a plate in which said journal
is rotatably mounted, a spindle in which the drill or tool is adapted
to be held and power transmission devices common to said journal and spindle.
6th. In an engine, the combination of a casing, a stationary valve located
therein, said valve being provided with inlet and exhaust chambers, inlet and
exhaust passages in said casing, leading to and from said valve chambers, an

page_text: the
common
said
eccentric stem depending from said valve, a plurality of cylinders rotatably
mounted in said
said valve to
casing, passages leading from
end
of said cylinders, pistons in the latter, connecting rods
to said pistons and eccentric stem, a journal depending from
cylinders, a plate having a bearing for said journal, a shaft con-
tained within said casing, having one extremity rotatably mounted in said
plate, a gear carried by said shaft and in mesh with a pinion carried by
said journal, a pinion mounted on said shaft, said pinion meshing with a gear
in engagement with a tool -spindle, the latter having a bearing in the bottom
plate of said engine, said bottom bearing plate also having therein a bearing
for said shaft.
7th. In an engine, a casing, a plurality of cylinders rotatably mounted therein, a
stationary valve located within said casing said valve consisting of a base pro-
vided with the upwardly extending wall 10 said wall being adapted to serve as
a bearing for the upper portion of said cylinders, a top 11 for said valve, a
threaded stem 12 projecting therefrom a transverse web 14 located in said valve
and adapted to divide the latter into the inlet and exhaust chamber 15 and 16,
inlet and exhaust ports communicating with said chambers, an oil port passing
through said valve but out of communication therewith, said oil port communi-
cating with the interior of said cylinders, and means for imparting rotation to
the latter.
8th. In an engine, a journal suitably supported, means for rotating said
journal, a bar in engagement with said journal and adapted to rotate in unison
therewith, other journals projecting from said bar, pinions of different diameters
mounted upon said last mentioned journals, a stationary gear or rack suitably
supported and in mesh with the larger of said pinions, a rotatable gear in mesh
with the smaller of said pinions, a spindle to which said rotatable gear is
attached, and a suitable bearing for said spindle.
9th. In an engine, a stationary valve, inlet and exhaust chambers therein,
an eccentric stem projecting from said valve into the engine casing, a plurality
of cylinders rotatably mounted, said valve serving as a bearing for the upper
portion of said cylinders, a journal depending from the latter, a plate or spider
in which said journal has its bearing, a bar attached to said journal, journals
projecting from the said bar, gears of different diameters mounted in said last
mentioned journals, a stationary gear or rack with which certain of said pinions
engage, and a rotatable gear in mesh with the other of said pinions, said last
mentioned gear being adapted to actuate a tool carrying spindle.
10th. In an engine, a plurality of cylinders adapted to rotate in unison, a
stationary valve, forming a bearing for the upper portion of said cylinders, a
lubricant chamber contained in substantially the central portion of said
cylinders, an oil port extending from the interior of said engine through said
valve for introducing oil into said chamber, a tool carrying spindle and power
transmission devices common to said spindle and said cylinders.
2000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicants.