Year: 1887

page_text: Date of Application, 3rd June, 1887
Complete Left, 20th Feb., 1888
Complete Accepted, 20th Apr., 1888
шртомещение и миоттсаюта,
We, ROBERT WAPPLER and AUGUST RICHTER of Crimmitzschau, in the Empire of
Germany, Manufacturers, do hereby declare the nature of our invention, to be as
follows
-
Lubricators for thick liquid grease or viscid material which act with a piston
worked by a spring, have the drawback, that the filling of the box is troublesome
as the piston cannot be conveniently held in its uppermost position, besides the outlet
opening to the lubricating chamber being always equal does not allow the amount of
lubricating material supplied to be regulated according to the number of revolutions
of an axle.
The said inconveniences are removed by the present improvements in lubricating
boxes with elastic piston, the latter being secured in its highest position by a special
contrivance, the supply of lubricating material being likewise adapted to be easily
regulated.
The special arrangements consist in providing the piston with a pin carrying at
its upper extremity a revolvable signal-disc secured in the piston. The pivot of
the said pin which is situated in the piston is arranged excentrically, while the
pin proper passes centrally through the disc of the box-cover. The pin has a recess,
which latches at the highest position of the piston into the cover-disc and receives
by turning said pin, the wall of the latter, whereby the pin and piston are main-
tained in their highest position, the action of the compressing spring is discontinued
and the box can be commodiously filled with lubricating material. In lieu of the
round, excentrically revolvable pin, a pin may be employed having an oval cross
section, which revolves about its centre-axis, recesses being provided on two sides
following the longitudinal axis of the cross section, into which recesses may latch the
wall of the cover. To allow the quantity of the lubricating material to be regulated
according to the number of revolutions of the pivots or axles, a set-screw is arranged
in the outlet channel for narrowing or widening the passage way in the channel
according to requirement.

page_text: We ROBERT WAPPLER and AUGUST RICHTER of-Crimmitzschau in the Empire of
Germany 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:
This invention relates to lubricators in which grease is continuously pressed through
the outlet by a piston acted upon by spring pressure and the improvement consists in the
combination of parts by which the piston may be held out of action but with spring,
in tension during the filling of the lubricator or the period of rest of the machinery.
an improvement further lies in the means of regulating the flow of grease.
Referring to the accompanying drawing
.
Fig. 1 is a central vertical section of a lubricator fitted with the improvement.
Fig. 2 is a cross section of the lubricator upon line N N Fig. 1.
Fig. 3 illustrates as an elevation partly in section the piston in its lowest position.
Fig. 4 is a cross section of the lubricator as upon line O O Fig. 3.
Fig. 5 is a portion of a vertical section of the lubricator illustrating a modification.
Fig. 6 is a cross section on line P P Fig. 5.
Cis the cylindrical body of the lubricator, F the lower cap therefor through which
is the outlet g.
B is the dome or cover for said cylinder C shaped to retain and
afford space for the spring. The piston D sliding in the cylinder C is guided by
the spindle a passing through a perforation e in the dome and terminating in a milled
head or equivalent device A. The piston D is depressed in the cylinder O by the
spring surrounding the spindle a and tends to press the grease in the cylinder O
through the opening g. The manner in which the spindle a is held up against the
action of the spring f. and which constitutes the improvement effected by this
invention is as follows:-The spindle a is connected and pivoted by the eccentric
pin on its lower extremity to the piston D and when turned will therefore move
eccentrically with regard to said piston. The spindle is guided in the perforation e
shaped thereto in the dome B. In the spindle a is arranged a recess b so placed as
to arrive even with the perforation e of the dome when the piston D is in its highest
position the said recess is shaped or formed by turning upon the shaft a wrist the
axis of which is in continuation of that of the pin h. When therefore the spindle
arrives with the recess & coincident with the perforation e in the dome B the spindle
will be capable of being turned since the wrist at 6 will be thereby revolved upon its
axis and so meet with no impediment to its movement from the edges of the
perforation e. The flanges of the recess bare thus brought over the wall of the
dome B and prevent further axial movement of the spindle a in either direction until
subsequently released by sufficient further or backward movement. The spindle a
need not have necessarily a circular cross section but may be of other convenient
shape of cross section.

page_text: Thus Figs. 5 and 6 illustrate a modification in which an oval spindle a is employed
the wrist at b and the pin h having however their position in the same axial line.
The flow of grease from the lubricator is governed by the set screw E adapted to
be screwed in or out for a greater or less amount perpendicularly to the channel g and
so determine the diameter of the outlet and therefore the rate of grease flow.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:
Dated this 20th day of February 1888.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C.,
Agents to Applicants.