Improvements in Connecting Rods having Adjustable Brasses or Bearings.
Year: 1896

page_text: Date of Application, 24th July, 1890
Complete Specification Left, 17th Apr., 1897-Accepted, 5th June, 1897
Date of Application, 24th July, 1890
Complete Specification Left, 17th Apr., 1897-Accepted, 5th June, 1897
PROVISIONAL SPECIFICATION.
Improvements in Connecting Rods having Adjustable Brasses or
Bearings.
I, WILLIAM SISSON, of Quay Street Iron Works, Gloucester, in the County of
Gloucester, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention has reference to connecting rods such as engine connecting rods.
of the kind having adjustable brasses or bearings and has for object the simultaneous
adjustment in an automatic way of the brasses at both ends of a connecting rod in
such wise as to compensate for wear and yot avoid seizing of the pins or journals in
the event of their becoming from any cause heated, and also, to provide for automatic
movement of the brasses or bearings where desirable as for example in the case of
an engine in the event of the crank shaft getting out of line for instance in
consequence of uneven wear of the main bearings, the object being to ensure in
such a case as far as practicable a constant parallelism and even bearing of the
brasses upon the pins they embrace.
To effect the objects of my invention within a hollow rod I arrange a pillar one
end of which is caused to bear against the adjacent brass or an interposed metal pad
or block by a spring actuated wedge located between the other end of the pillar and
the brass adjacent to that end or between this end of the pillar and a pad or block
juxtaposed to the corresponding brass. The wedge and the adjacent end of the pillar
are sloped to a corresponding extent. The brasses at either or both ends of the rod
may be arranged to rock or swivel, the outer brasses which cannot move lengthwise
of the rod rocking or swivelling about swivel pius or bolts arranged at right angles
to the pins, to which the brasses are applied, and the inner brasses rocking or
swivelling in curved or cup-bearings formed in the pillar end or in metal pads
interposed between the brasses and the end of the pillar or the wedge. Each brass
is formed with a part adapted to fit its curved or cup bearing. The outer brasses,
instead of being mounted on pins, may if desired, like the inner ones, be formed
with convex parts fitting into curved or cup-bearings.
Referring to the accompanying drawings which are given by way of illustration
only;
Figs. 1 and 2 are sectional elevations at right angles to each other of a connecting
rod according to my invention.
1 is a hollow rod having formed with it a strap at its upper end and a fork at its
lower end.
a slot
2 is a pillar with sloping lower end, and 3 a wedge which extends through
in the hollow rod and hears against the lower end of the pillar. The wedge is
formed with a screw threaded end carrying an adjustable nut 3 between which and
the wall of the hollow rod is a spring 3b. This spring is in compression and tends
to draw the thicker portion of the wedge opposite to the corresponding end of the
pillar. 4, are metal pads or blocks interposed respectively between the end 2ª of
the pillar and the adjacent brass 5 and between the side 3 of the wedge and the
brass 5.
The pad or block 4 is made curved at that surface next the brass 5 and cylindrical
at the opposite side, this cylindrical part extending beyond the adjacent side (in the
example, the bottom) of the slot through which the wedge extends. 6 and 6" are

page_text: the outer brasses. The brass 6 is mounted on a bolt 7, 7 being a steel sleeve or
bush against the ends of which the forks of the hollow rod are tightened, and the
brass 5 is formed with a convex part of a curvature to suit that of the pad 4. The
wedge 3, which constantly tends to press the brasses 5 and 5ª against their pins, is so
formed that should the bearings heat and consequently expand the wedge will be
moved back against the action of the spring 3 and thus seizing may be obviated.
Figs. 3 and 4 are sectional elevations at right angles to each other, of the upper or
small end bearing of a vertical connecting rod with the brasses 5 and 6 arranged
similarly to the brasses 5 and 6 shown in Figs. 1 and 2.
Figs. 5 and 6 are similar views to Figs. 3 and 4 illustrating a modification in
which the brass 5 is formed with a convex curvature that suits à concave curvature
in the adjacent pad 4; the brass 6 is also formed with a convex curvature that suits
a corresponding concave curvature in a pad 4 above it. As will be seen, this
arrangement allows of the required rocking or swivelling movement and it may be
applied to either or both ends of the hollow rod.
Dated this 24th day of Lu. 1900
COMPLETE SPECIFICATION.
Improvements in Connecting Rods having Adjustable Brasses or
Bearings.
I, WILLIAM SISSON, of Quay Street Iron Works, Gloucester, in the County of
Gloucester, Engineer, 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 reference to connecting rods such as engine connecting rods of
the kind having adjustable brasses or bearings and has for object the simultaneous
adjustment in an automatic way of the brasses at both ends of a connecting rod in
such wise as to compensate for wear and yet avoid seizing of the pins or journals in
the event of their becoming from any cause heated, and also, to provide for automatic
movement of the brasses or bearings where desirable as for example, in the case of
an engine in the event of the crank shaft getting out of line, for instance in
consequence of uneven wear of the main bearings, the object being to ensure in such
a case as far as practicable a constant parallelism and even bearing of the brasses
upon the pins they embrace.
To effect the objects of my invention within a hollow rod I arrange a pillar one
end of which is caused to bear against the adjacent brass or an interposed metal pad
or block by a spring actuated wedge located between the other end of the pillar and
the brass adjacent to that end or between this end of the pillar and a pad or block
juxtaposed to the corresponding brass. The wedge and the adjacent end of the pillar
are sloped to a corresponding extent. The brasses at either or both ends of the rod
may be arranged to rock or swivel, the outer brasses, which cannot move lengthwise
of the rod, rocking or swivelling about swivel pins or bolts arranged at right angles
to the pins to which the brasses are applied, and the inner brasses rocking or
swivelling in curved or cup-bearings formed in the pillar end or in metal pads
interposed between the brasses and the end of the pillar or the wedge. Each brass
is formed with a part adapted to fit its curved or cup bearing. The outer brasses,
instead of being mounted on pins, may, if desired, like the inner ones, be formed
with convex parts fitting into curved or cup-bearings.

page_text: Referring to the accompanying illustrative drawings-Figs. 1 and 2 are sectional
elevations at right angles to each other of a connecting rod according to my invention.
1. is a hollow rod having formed with it a strap at its one end (in the example, its
upper end) and a fork at its opposite or lower end.
2 is a pillar with sloping lower end, and 3 a wedge which extends through a slot
in the hollow rod and bears against the lower end of the pillar. The wedge is formed
with a screw threaded end carrying an adjustable nut 3 between which and the
wall of the hollow rod is a spring 3. This spring is in compression and tends to
draw the thicker portion of the wedge opposite to the corresponding end of the
pillar. 4, 4 are metal pads or blocks interposed respectively between the end 2ª of
the pillar and the adjacent brass 5 and between the side 3 of the wedge and the
brass 5.
The pad or block 4* is made curved at that surface next the brass 5* and cylindrical
at the opposite side, this cylindrical part extending beyond the adjacent side (in the
example, the bottom) of the slot through which the wedge extends. 6 and 6* are
the outer brasses. The brass 6 is mounted on a bolt 7, 7 being a sleeve or bush
against the ends of which the forks of the hollow rod are tightened, and the brass 5
is formed with a convex part of a curvature to suit that of the pad 4°. The wedge 3,
which constantly tends to press the brasses 5 and 5 against their pins, is so firmed
that should the bearings heat and consequently expand the wedge will be moved back
against the action of the spring 3b and thus seizing may be obviated.
Figs. 3 and 4 are sectional elevations at right angles to each other, of the upper
or small end bearing of a vertical connecting rod with the brasses 5 and 6 arranged
similarly to the brasses 5 and 6 shewn in Figs. 1 and 2.
Figs 5 and 6 are similar views to Figs. 3 and 4 illustrating a modification in
which the brass 5 is formed with a convex curvature that suits a concave curvature
in the adjacent pad 4; the brass 6 is also formed with a convex curvature that suit.s
a corresponding concave curvature in a pad 4b above it. As will be seen, this
arrangement allows of the required rocking or swivelling movement and it may be
applied to either or both ends of the hollow rod.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what
I claim is :-
1. The combination and arrangement of parts described with reference to and
illustrated by Figs. 1 and 2 of the drawings left with my Provisional Specification
and comprising the hollow rod 1, the pillar 2, the wedge 3, with its adjusting means,
and spring 3 and the brasses 5, 5" (with or without pads or blocks such as 4, 4) the
arrangement being such as in an automatic way to compensate as set forth for wear
whilst obviating seizing of the pins or journals in the event of their becoming
heated.
2. A connecting rod with automatic adjustment according to the preceding claim
in which the brasses at either end or both ends of the rod are arranged, substantially
as described and shown, so as to rock or swivel for the purpose of ensuring the even
bearing of the brasses upon the pins they embrace.
3. A connecting rod with automatic adjustment according to Claim 1 provided at
one or both its ends with swivelling or rocking brasses as described, whether according
to Figs. 3 and 4 or to Figs. 5 and 6.