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Патент USA US2409324

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Oct. 15, 1946.
A 2,409,324
Patented Oct. 15, 1946
airco stares PATENT ortica
2,409,324 ~
John rì‘urenchalk and Harry T'uren'chalk,
Yonkers, N. Y.
Application July 21, 1944, Serial No. 545,956
5 Claims. (CL 134-46)
The invention relates to a- lubricator, andA more
especially to an automatic lubricat'or for a tail
stock center.
The primary object of the invention is the pro
vision of a lubricating device of this character,
wherein the lathe centers, especially a tail stock
the body of a tail stock for a lathe, and is of
standard construction, having the advancing and
receding center I0 as usual, with its peen II, in
association with the lubricating device constitut~
ing the present invention and hereinafter set
forth. The center I0, however, is modified for
the attachment of the lubricator thereto, by hav
ing a longitudinal bore 22 extending inwardly
center, will be automatically lubricated constant
ly, thereby saving valuable time in this direction,
in that hand oiling is eliminated, and a decrease
of the work going off center due to excessive
wearing of the tail stock., which might result in 10 from the end of the peen II and commonly con
necting several lateral bores 2| opening radi
untrueness of the work.
ally outward the body of the center.
Due to careful attention necessary for accurate
The device comprises a bellows-like expansible
work on the lathe, lathe centers, especially the
tail stock center, must be either well oiled or 15 and collapsible container l2, having at its bot
greased from time to time for satisfactory opera~
tion, but inV due’time, especially if the center is
tom a central discharge nipple I3, externally
threaded at im Thisk nipple I3 is passed through
and in this manner the device is a time saver.
20 at any one of the radial bores 2l.
The ñexible duct I 9 is fitted with a cutoiî valve
a companion hole in a shelf Iä of a hanger brach
unhardened there is a bruising of the same, after
et IG, which is made secured to the stock body A
some work is turned out, this being remedied by
grinding the tail stock center from time to time. 20 at one side thereof, as at il, the nipple being
also connected by a detachable union I3 with a
Another object of the invention is the pro
flexible duct i9, which extends to the center It,
vision of an automatic lubricating device, where
where it is coupled therewith through a nipple
in the above difficulties will have been overcome,
A further object of the invention is the pro
vision of a device of this character, which is sim
Figures i to 3, inclusive, A designates generally
23 adjacent to its connection with the center IG,
so as to permit regulation of the flow of lubri
ple in construction, thoroughly reliable and effi
cant from the container l2 into the passage 22
cient in operation, strong, durable, a positive
for proper lubrication of the peen l I.
lubricant feed control, and inexpensive to manu
facture and install.
As before stated, the center Iii is provided with
With these and other objects in View the in
several lateral bores 2 í, radiating from the inner
end of the longitudinal bore 22 that extends out
vention consists in the features of construction,
combination and arrangement of parts as will be
ward through the peen II, and all of these, with
hereinafter more fully described, illustrated in
the exception o-f the one in connection with the
the accompanying drawing, which shows the pre 35 nipple 20, are closed off by Allen set screws 26',
ferred embodiments of the invention, and pointed
so that, when the center Iû shows a slight un
out in the claims hereunto appended.
evenness in wear, it may be compensated for by
In the accompanying drawing:
interchanging the nipple 2i) with any one of the
set screws 20', thus changing the relative posi
a lathe showing the lubricating device construct 40 tion of the center with respect to the nipple and,
ed in accordance with the invention installed, the
consequently, that of the peen II with respect to
Deen of the center being broken away in part.
the work.
Figure 2 is a fragmentary side elevation.
The shelf IE5 of the bracket I6 is formed with
Figure 3 is a sectional view taken on Ä‘the line
an upstanding rack 24 for sustaining the con
3-3 of Figure 2 looking in the direction of the
tainer I2 vertically, which is confined or held
within the said rack 24 for the working thereof.
Figure 4 is a fragmentary vertical sectional
The top of the container I2 is formed with an
View of a slight modification.
indented filling nipple 25 in which is removably
Figure 1 is a top plan view of a tail stock for
Figure 5 is a plan View oi one of the elements
threaded a closure plug 2S, which on removal per
of the bellows assembly of the modiñed form of 50 mits the filling of the container I2 with grease or
expansible and collapsible container.
oil for lubricating purposes.
Similar reference characters indicate corre
Adapted to be superimposed on the top of the
sponding parts throughout the several views in
container I2 is one or more disk-like weights 2l,
the drawing.
these being confined Within the rack 24 and func
Referring to the drawing in detail, particularly 55 tion to exert pressure on the container I2 to
force lubricant therefrom for lubricating the
center l0.
If additional pressure is required for forcing
lubricant from within the container I2 there is
created a weight hook or hanger 28, for the car
riage of supplemental weights 29, which are sim
ilar to the weights 21. This hook or hanger 28
beads provide grips for the clinching over the
same of metal rims 36. By this novel construc
tion, the advantage of simplification and least
expense, in the making and assembling of the
container parts, is readily apparent.
What is claimed is:
1. In a lubricator of the class described, a col
lapsible container having the form of a vertically
has a saddle 30 for resting upon a weight or
disposed bellows, with flat top and bottom end
weights 21 when superimposed on the top of the
walls, the top wall having a centrally disposed in
container I2, the mounting of the said hook or
wardly nippled inlet for a supply of the lubri
hanger 28 being clearly shown in Figures 2 and 3
cant, the bottom wall having a centrally disposed,
of the drawing.
downwardly extending, nippled outlet, a closure
The center l0 is held in position by a key 3l
plug for the inlet, a flexible duct leading from
which engages in the sleeve 32 oi the center l0,
the outlet, and a cutoff valve for controlling the
as is shown in Figure 1 of the drawing.
lubricant discharge from the ilexible duct.
2. The lubricator as in claim 1, with the top
and'bottom walls of metal and the bellows made
and, here, the top 33 thereof is in the form of an>
up of a plurality of washer-like discs stamped
inverted, cylindrical cap, of metal, which has its
end Wall provided with the indented ñlling nipple 20 out from a sheet of lubricant resistant material,
the edges of the walls and discs being beaded
ZEQ'nOrmally closed by a screw plug, and the
and juxtapositioned, when in assembly, to pro
edge of its side wall outwardly flanged, as at 33',
vide grips for the clìnching of metal retaining
which, in turn, has its edge upwardly beaded, as
at 33". The bottom 3d takes the form of a flat
rims thereover.
3. The lubricator as in claim 1 wherein there
circular wall, having its edge beaded, as at 34', 25
is provided changeable weight means for exert
and provided with a downwardly extending nip
ple i3', opening through its center. The wall of
ing pressure on said container for forcing lubri
the bellows, forming the body I2' of the con
cant therefrom through said duct.
tainer, is made up of a series of washer-like discs
4. The lubricator as in claim 1, wherein there
35, stamped out from a suitable flexible material 30 is provided a rack for sustaining the container in
of a lubricant resistant character. These discs
working position.
35 have their inner and outer edges beaded, as at
5. The lubricator as in claim 1, wherein there
35', with the beads of the inner edges on the sides
is provided a removable weight hanger for asso
of the discs opposite to those on which the beads
ciation with the container.
at the outer edges are formed, so that, when the 35
end portions 33, 34, and the discs 35 are brought
into assembly, as shown, the juxtapositioned
In Figure 4 of the drawing there is shown a
slight modification of the lubricant container,
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