Improvements in Automatic Grease Boxes.
Year: 1897

page_text: Date of Application, 12th Mar., 1897-Accepted, 17th Apr., 1897
Improvements in Automatic Grease Boxes.
I, GUSTAV WALCH, of Kranzplatz 4, Wiesbaden, in the Empire of Germany,
Watchmaker, 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 relates to grease boxes for automatically and regularly supplying a
lubricant to pistons, axles, shafts spindles and the like. The grease box is provided
with clockwork mechanism, a press piston and screw movement. Means are provided for
disengaging the screw from the clockwork and turning it by a handle when required
for filling or otherwise.
In the annexed drawings—
Figure 1 is a vertical section of an automatic grease box in accordance with the
invention.
Figure 2 is a plan.
Figure 3 shows the balance wheel with a stop appliance and other parts.
Figure 4 shows the balance wheel and bearings to a larger scale.
Figure 5 is a plan of the crank handle for directly actuating the piston.
a is the cylindrical grease vessel, the lower part can be unscrewed and removed for
the purpose of filling. On the part a is placed the similarly shaped case a¹ formed of
glass or metal and containing the clockwork which serves to drive the piston b by
means of the driving screw c, toothed wheel d and pinion e. The spring box g conceals
a spring which drives ordinary clockwork under the control of the balance wheel p;
it also drives the press piston b. The spring is wound up by the square m by means
of a key. The teeth upon the barrel 9 actuate the pinion on the axis i and the
pinion e on the same axis engages with and drives the spur wheel d on the head of the
screw c. By the rotation of the screw the piston b is caused to drive the lubricant
through the hole below to the part it is desired to lubricate.
The part to be lubricated is connected to the grease box by means of the screw
thread a² the clockwork is put into operation or stopped by moving the knob n Figure 3
whereby the pin o can be pushed against the balance wheel p.
The balance wheel bearings 9 carried by frame plates are provided with
screw threads by which they may be adjusted. In the centre also under the point
of the axis is a small bore hole, the object of which is the prevention of damage
to the pivots, it also serves for receiving lubricating oil.
his a crank handle which can be applied when desired to the axis i for the
purpose of turning the screw c by hand in preparing to fill the grease box or
otherwise.
The axis upon which the crank handle is applied is then pulled up against
the resistance of the spring seen in Figure 1 so that the pinion f comes out of
gear with the spring box, whilst the pinion e by reason of its thickness remains
in gear with the spur wheel d; the press piston can then be rotated backwards
or forwards by hand as desired. The arm of the crank handle is forked as is
seen in Figure 5 and engages with the head k as shown. The head is kept fast
upon the spindle i by a locking screw.
The crank handle is secured on the head & by a book niece 1°

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In grease boxes with clockwork and balance regulation the arrangement of
gear mechanism substantially as described for driving the screw and press piston
both by the clockwork and by hand.
2. In a grease box with balance regulation, mounting the balance wheel as
described with a conical spindle and small cylindrical bore holes in the bearings
which prevents damage to the pivots and at the same time serves for retaining
lubricating oil.
CARPMAEL & Co.,
Agents for the Applicant.