UBRICA
Year: 1896

page_text: Date of Application, 21st July, 1896-Accepted, 12th Sept., 1896
A communication THE ROCHESTER AUTOMATIC LUBRICATOR COMPANY, of
Rochester, County of Monroe, State of New York, United States of America,
a corporation existing under and by virtue of the laws of the State of New
York.
I, ALFRED JULIUS BOULT of 111 Hatton Garden, in the County of Middlesex,
Chartered Patent Agent. 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 :-
This invention has for its object to provide an improved lubricator and also
certain parts and connections adapting it for lubricating relatively reciprocating
parts of machines, as the pistons of hydraulic engines used for operating elevators,
and it consists in certain improvements and combinations of parts, all as will be
hereinafter fully described.
In the drawings:-
Figure 1 is an enlarged side elevation of a lubricator constructed in accordance
with this invention showing its application to a hydraulic elevator engine, a portion
of the frame of the latter being indicated in section.
Figure 2, a similar view showing the parts of the engine more in detail.
Figure 3, a rear view of a portion of the lubricator.
Figure 4, a sectional view on the line 4-4 of Fig. 3.
Figure 5, a vertical-sectional view on the line 5-5 of Figure 3.
Figure 6, a sectional view on the line 6-6 of Fig. 1.
Figures 7 and 8, views showing the application of the invention to different forms
of elevator engines.
Figure 9, a section on the line 9-9 of Figure 8.
Figure 10, a detail view.
Figure 11 is a side view of a modified form of lubricator.
Figure 12, a sectional view of the same on the line 12-12 of Figure 11.
Similar reference letters in the several figures indicate similar parts.
I will first describe the construction of the lubricator itself and then the manner
of its application to the elevator engines.
The letter A indicates a reservoir or receptacle for containing the lubricant,
preferably a heavy oil, and formed in or attached to one side thereof is a
cylinder B, the lower end of which communicates with the bottom of the receptacle
by the passages a and b, shown particularly in dotted lines in Figure 3, the end of
the passage a having a ball check-valve al operated upon by a spring a2 and the
passage being provided at its upper end, and preferably within the cylinder, with
a small check valve 1. c indicates a passage leading from the cylinder B, and ca
ball or check valve seated against the end of said passage, and held in position by
a spring, preferably adjustable by a plug c d is a passage leading from the
chamber in which the check valve c' operates, and having at its upper end a ball
check-valve d', the upward movement of which is limited by a spider or similar
retaining device d². C indicates the exit pipe for conducting the lubricant to the
place desired; in the present instance leading to the chamber D' in the piston D
operating the hydraulic cylinder E. F indicates a plunger or lubricant piston
enerating in the De
connected to a rake frame & the

page_text: rear sides of which are extended as at G to project in proximity to the surface of
the receptacle A and preventing the piston and yoke frame from turning. The
upper portion of this frame is preferably slotted for the passage of a bolt or stad G
and also serves as a guide for ensuring the proper operation of the piston.
Hindicates a pinion mounted upon a bolt or stud II secured to the receptacle A,
said pinion having on its rear side a cam H', operating in the yoke frame G on the
piston and causing the reciprocation of the frame and piston at each revolution,
from which it will be seen that when the piston is raised oil will be drawn from
the receptacle A through the passages a and b into the cylinder B, the valves a
and opening, while the valves c and d will be closed, then as the piston descends
the oil in the cylinder will be forced through the passages c and d and the pipe C
to the piston or other portion of the machine requiring lubrication. By changing
the valves, this pump could he used as a lift instead of a force pump, but the latter
is preferred, though my correspondents do not wish to be confined to this
arrangement.
The means for rotating the gear H, in the present construction, embodies a gear J
mounted upon the bolt or stud G and having formed upon or secured to it a ratchet
wheel J. Also mounted loosely upon the end of the bolt or stud G is a rock-arm
or lever K having at its upper end a pawl & preferably formed of a piece of spring
metal adjustably secured in a suitable recess by a screw &', shown particularly in
Figure 1, while the lower end of said rock-arm is slotted and has adjustably
attached to it a short arm or liuk L to which is pivoted one end of a link L', the
other end of said link L' being pivoted upon a stud m (Fig. 6) formel upon or
secured to a block M adjustably secured in the slot of a rock-arm N by means of
a nut M. This rock-arm N is pivoted at N' to the side of the receptacle A or
other suitable support, and the connectiou between it and the rock-arm K is such
that as the arm N is oscillated on its center of motion, the arm Kis oscillated and
when moving in one direction will operate to turn the wheel J in the direction of
the arrow Figure I, and when moved back, the pawl will slip over the teeth of
the ratchet. It will be seen that by adjusting the connection between the link L'
and the arm N, and between the arm L and the lever K, the amount of motion
communicated to the pawl and consequently the movement of the ratchet wheel J
can be varied, and the wheel K moved any desired number of teeth at each
reciprocation notwithstanding the fact that the arm N is moved a constant distance
at each oscillation.
In Figures 1 and 2 is shown the device arranged to lubricate the piston of a
hydraulic engine in which the water pressure is applied to the face of the piston D,
indicating the usual piston rod supported upon wheels O' travelling on a way
and Pindicating the yoke attached to the end of the piston rod and carrying the
several wheels or sheaves P1, P1, over which the lifting cable P³ passes, and in this
construction is shown the lubricant receptacle A clamped to a web or rib P of the
yoke P, and also mount upon said yoke a bracket Q having upon it an adjustable
frame Q (adjusted by means of a screw 9) said frame Q carrying a wheel R
having a covering R of rubber or similar material adapted to be brought in contact
with one of the sheaves P', so that by the movement of said sheaves the wheel R
will be rotated in opposite directions as the piston is moved in and out alternately.
S indicates a lever, preferably a bell-crank, pivoted at s on the frame Q', the
longer arm being provided with a series of apertures s' through one of which passes
a bolt carrying one end of a connecting rod or link S', the other end of said rod
passing through a sleeve S pivoted upon a bolt S adjustably secured in the slot
of the arm N. S₁ indicates a set-screw adapted to connect the rod S¹ with the
sleeve S. The other end of the lever S is provided with two pawls T, T', their
rear ends being connected by a spring T' serving to hold them against the ends of
a rib T3 constituting a stop, while their free ends project beside the wheel R and
are adapted to be engaged at times by a pin U secured thereon. From the above
construction it will be seen that when the piston rod is moving in a direction to
cause the rotation of the sheave P' in the direction of the arrow in Figure 1, the

page_text: pin U on the arm R will engage the end of the pawl T turning the bell crank S
to the position shown in dotted lines, and through the operating parts described
move the ratchet wheel J a distance determined by the adjustment of the parts, as
will be understood, the motion being transmitted through the gears and cam to the
piston of the lubricator. When the sheave P' moves in the opposite direction, as
the lever S is then in the position shown in dotted lines, the pin U will engage the
pawl T returning the parts to the position shown in full lines so that on the next
stroke of the piston of the hydraulic engine a further movement of the lubricator
piston will be caused, and from the relative pin on the wheel R and the sheave P
it will be seen that each time the elevator is operated a short distance, a small
quantity of lubricant will be fed to the engine piston or the oil pump will be drawing
oil from the receptacle A into the cylinder B.
The means shown for actuating the rod S' is adapted for use on various machines
in which there are parts that move alternately in opposite directions, the pawls on
the lever S causing the oscillation of the latter in one direction and causing only
one operation while the parts are moving this way, and when the direction of
movement is changed, only one movement of the rod is caused, thus feeding a very
small quantity of the lubricant.
In Figure 7 is shown another way of operating the lubricator, the rod S
attached to the rock-arm N being pivoted to a crank pin on a wheel R*, which
latter is mounted upon the end of an arm V pivoted at v to a bracket V', the
periphery of the wheel R* being held pressed against the underside of the
cylinder E by a spring W.
From this it will be seen that the rotation of
the arm R* will cause the reciprocation of the arin N.
In Figure 8 is shown the device applied to the cylinder of what is known as a
"pull" elevator engine, the water pressure being applied to the left-hand side, as
shown in the drawing, and the rod S* in this instance is pivoted to a crank on a
drum or wheel X mounted upon a stationary pin or arbor a to which it is
connected by a spring X' operating to turn said drum in one direction as shown in
Figure 10. Y indicates a tape, cord or cable connected at one end to the cylinder
or a stationary support, and wound one or more turns around the drum and
connected to it. The construction of this device is such that as the piston D
moves to the left the tape or cord will cause the movement of the drum X in one
direction, operating the oil pump and when the piston D moves to the right, the
spring will serve to rotate the drum in the opposite direction causing a similar
operation of the oil pump, and also the winding of the tape on the drum.
In Figures 11 and 12 the plunger or lubricant piston F has pivoted to its upper
end a pitman F2 having a strap passing around a cam H formed upon or attached
to the ratchet wheel J corresponding to the wheel J' shown in the other figures,
so that the continuous rotation of the ratchet wheel will operate the pump piston
and force the oil in the same manner as in the devices shown in the other figures,
this arrangement dispensing with the use of the intermediate gears H and J, and
in this construction also the rock-arm K², corresponding to the arm K in the other
figures, is provided at its upper end with a gravitating pawl & engaging with the
teeth of the ratchet wheel. In some instances this construction is preferable, as it
simplifies the parts. As shown in these figures, the knuckle formed by the
links L, L' is reversed in position, and the connection with the pitman S* or other
operating means is above the point of connection with said links, but this could be
varied without departing from this invention.
It is obvious that other means for causing the operation of the lubricator may be
employed than those herein shown, but it is found that these will operate well upon
the styles of elevators in common use.
My correspondents do not wish to be understood as confining themselves to the
use of the improved lubricator upon clevator engines or any particular type of
machine, as it is admirably adapted for all purposes for which lubricators
embodying pumps are capable of use, and the adjustments between the

page_text: arms and N are such that the quantity of lubricant fed may be regulated
to a nicety.
Having now particularly described and ascertained the nature of the said inven-
tion as communicated to me by my foreign correspondents and in what manner the
same is to be performed, I declare that what I claim is :-
1. In a lubricator, the combination with the lubricant receptacle, the cylinder,
and valves and passages substantially as described, of the lubricant piston,
the yoke, and the projections on the yoke engaging the receptacle, the wheel
having the cam operating in the yoke, and means for rotating said wheel, as set
forth.
2. In a lubricator, the combination with the lubricant receptacle, the cylinder,
the passages and the valves therein, and the reciprocating piston having the yoke, of
the intermittently operating wheel having the cam, and the ratchet for operating
it, the rock arm carrying the pawl, the actuating rock-arm and connections
between said arms adjustable relative to the pivots of both arms, whereby the
amount of movement of the ratchet wheel can be adjusted, substantially as
described.
3. In a lubricator, the combination with the lubricant receptacle, the cylinder,
the piston operating therein, and valves and passages, of the ratchet-wheel
connected mediately with the piston for actuating it, the rock-arm, the pawl
thereon, the second rock-arm, the links pivoted together and adjustably connected
to the two rock-arms, substantially as described.
4. In a lubricator embodying a pump, and as a means for operating the piston, a
ratchet-wheel connected mediately to the piston, the stud on which it is mounted,
the rock-arm on the stud having the pawl, a second rock-arm, the links pivoted
together at one end, one of said links being pivotally and adjustably connected to
one rock-arm, and the other link rigidly and adjustably connected to the other
rock-arm, substantially as described.
5. In a lubricator, the combination with the lubricant receptacle, the cylinder,
the piston operating therein, the ratchet wheel and connections between it and the
piston, of the stud on which the ratchet wheel is supported, the rock-arm pivoted
on the stud, and the pawl carried thereby, the rock-arm pivoted on the receptacle,
the links pivoted together and adjustably connected to the two rock-arms, and au
actuating rod adjustably connected to the last-mentioned rock-arin, substantially as
described.
6. The combination with the lubricant receptacle, the cylinder, the piston
operating therein, and valves and passages substantially as described, of the
ratchet-wheel connected mediately with and operating the piston, the slotted rock-
arm having the pawl, the links L, LI, the slotted rock-arm N, the sleeve S³ having
the screw S, and the actuating rod S1, as set forth.
7. The combination with a lubricator embodying a pump and having a
reciprocating actuating rod as S' for operating it, of the lever S connected to said
rod, the two spring pawls thereon, and a wheel R having the pin U co-operating
with said pawls, substantially as described.
8. The combination with a machine having parts relatively movable in opposite
directions alternately, of a lubricator for supplying a lubricant to moving parts
embodying a pump, a driving mechanism for the lubricator embodying a ratchet
wheel, a rock-arm carrying a pawl and a reciprocating rod connected to said rock-
arm, and a wheel for actuating the rod, mounted upon one of the machine parts
and adapted to be alternately rotated in opposite directions by the movement of the
parts relatively, substantially as described.
9. The combination with the cylinder of a hydraulic engine, a piston operating
therein, the sheave connected to and carried by the piston and the cable, of a
lubricator for supplying lubricant to the piston carried by the piston aud embodying
a pump, a ratchet wheel, and a rock-arm carrying a pawl, a rod connected to the

page_text: pawl, a wheel in frictional engagement with the sheave, and connections between
the wheel and rod for moving the latter in opposite directions alternately as the
engine piston reciprocates, substantially as described.
Dated this 21st day of July 1896.
BOULT & WADE,
Agents for the Applicant.