Device for Oiling Piston Rods or Valve Stems on Engines Inside of the Stuffing Box.
Year: 1899

page_text: Date of Application, 7th Sept., 1899-Accepted, 21st Oct., 1899
COMPLETE SPECIFICATION.
Device for Oiling Piston Rods or Valve Stems on Engines Inside of the
Stuffing Box.
I, GEORGE HOWARD MERRITT, of Sag Harbor, in the County of Suffolk and
State of New York, U.S.A., Engineer, do hereby declare the nature of this in-
vention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
-
My invention relates to oiling piston rod or valve stems on engines, and
the object of my invention is to provide a continuously lubrication of the piston
rods or valve stems and to reduce the friction of the same
In the accompanying drawings:
Figure 1 is a transverse section.
Figure 2 is a view of the part B¹.
Figure 3 is a view of the part C¹.
Figure 4 is a view of the parts B₁ and C¹ in combination.
Similar figures refer to similar parts throughout the several views.
In order to attain the object of my invention, I construct four semi-cylindrical
brasses B, B and C, C with the forward openings smaller than the openings in
the other end. The forward opening is also much larger than the opening of
the steam chest or cylinder, the object being to allow the gland 8 to be screwed
upon the brasses C, C¹ in such a way as not to interfere with the feeding of the
oil from the oil cup to the rod.
The inner edges of the forward opening in the parts B, B' are beveled, as
indicated by 10, the object of which is to force the packing to a tight joint
around the rod and thus prevent all leakage of the seams of the parts B, B¹.
Upon the top of B1, I cut an elliptical or rectangular opening, 1, which extends
a sufficient distance lengthwise along said B₁ so that the opening 2 in C¹ shall
always be beneath it as the said C¹ is moved forward and back. The parts B, B¹
are fitted together, the part B₁ upon the part B, and thus placed into the stuffing
box 3, the forward end being set flush to the shoulder of the stuffing box.
The parts C, C¹ are constructed so as to be slightly smaller than B, B', and
upon the inner side of the forward opening I construct a sluice-way, extending
around the entire inner circumference of the two halves. Upon the top of the
part C, and over the sluice-way, 4, I drill a hole 2, opening into the said sluice-
way, through which the oil from the oil cup, 5 flows.
The opening in the forward end of C, C¹ is a trifle larger than the rod 7, thus
insuring a perfect and constant lubrication of the rod by allowing the oil to
soak through the packing, G.
Upon the stuffing box, a hole is drilled for the oil cup, 5.
The parts C, C₁ are placed together in a similar manner to B, B¹ with the
hole 2 underneath the elliptical or rectangular opening 1, of B¹. Around the
rod, 7, and inside of the parts B, 13 the packing is placed. The parts C, C¹
are then inserted into the opening of B, B1, and packing similarly placed in C, C¹.
The gland, 8, is then fitted into the opening of the parts C, C and regulated by
the screws 9.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is: -
Claim 1: In a dévice for oiling piston rods or valve stems on engines inside
of the stuffing box, the combination with the stuffing box, of the semi-cylindrical
brasses B, B having their forward inner edges beveled, said brasses being placed
one upon the other, the upper portion thereof having an elliptical or rectangular
opening, both fitting close to the shoulder of the stuffing box, and the semi-
cylindrical brasses C, C having upon their forward inner edges a sluice-way and
being placed one upon the other and fitting into the parts B, B', substantially
as described.
Claim 2: In a device for oiling piston rods or valve stems on engines inside
of the stuffing box, the combination with the stuffing box, of the semi-cylindrical
brasses B, B and C, C¹, the said brasses C, C' fitting into the parts B, B¹ and
having upon their forward inner edges a sluice-way, the upper portion thereof
being provided with an opening leading from the oil cup to the sluice-way,
and the oil cup 5, substantially as described.
GEORGE HOWARD MERRITT.
By Day, Davies, & Hunt,
Chartered Patent Agents, 321, High Holborn, London, W.C.,
Agents for the Applicant.