IMPROVEMENTS IN COUPLING APPARATUS FOR SHAFTS USED IN TRANSMITTING. MOTION TO MACHINERY
Year: 1882

page_text: LETTERS PATENT to Henry Harris Lake, of the firin of Heseltine, Lake
& Co, Patent agents Southampton Buildings, London for an Invention of
"IMPROVEMENTS IN COUPLING APPARATUS FOR SHAFTS USED IN TRANSMITTING.
MOTION TO MACHINERY Communicated to him from abroad by William
Johnston, of Philadelphia, Pennsylvania United States of America Machinist
">
& Co, Patent agents Southampton Buildings, London for an Invention of
"IMPROVEMENTS IN COUPLING APPARATUS FOR SHAFTS USED IN TRANSMITTING,
MOTION TO MACHINERY" Communicated to him from abroad by William
Johnston, of Philadelphia, Pennsylvania United States of America Machinist
:
PROVISIONAL SPECIFICATION left by the said Henry Harris Lake at the
Office of the Commissioners of Patents on the 18th December 1882.
"
HENRY HARRIS LAKE, of the firm of Haseltine, Lake, and Co., Patent Agents,
Southampton Buildings, London, "IMPROVEMENTS IN COUPLING APPARATUS FOR
SHAFTS USED IN TRANSMITTING MOTION TO MACHINERY [A communication to
me from abroad by William Johnston, of Philadelphia, Pennsylvania United States
of America Machinist]
My Invention relates to that class of shaft couplings which are employed to
transmit power from one rotating shaft to another, and at the same time to allow
the shafting perfect freedom of motion in every direction, and at any angle, within
certain limits.
The said Invention consists in the construction of the couplings, whereby they
are compact, may be made at a reduced expense, are stronger and more durable,
work with less friction and noise, and are more readily set up and taken apart, as
compared with those heretofore used, and provision is made for lubricating the
parts.
In carrying the said Invention into practice I provide two heads each of which
is formed of sections which are connected by means of bolts, the ends of the shafts
being secured to one of the sections; the other sections may however be formed in
one piece without affecting the operation of the coupling.
In one of the sections of each head is a depression for the reception of an
oscillating block which is formed with journals which rest on these sections and
are retained by one of the other sections, the latter being of annular form.

page_text: In the block is an opening extending at a right angle to the journal, and
receiving an oscillating pin to which is keyed, or otherwise secured, one end of a
coupling link, whose end also enters an opening in the block; said link connects
the two heads of the coupling.
To the faces of two of the sections of the head contiguous with the body of the
block, is secured babbet or other anti-friction metal which receives the wearing
action of the block on the head.
The outer face of one of the sections of each head is bevelled, the bevelled faces
of the sections of the two heads being in contact so that the two heads run with
less noise and more ease, and they are somewhat, sustained on each other. In the
construction of these sections the angle of the bevelled faces will be adjusted
relatively to the angle at which the shafts are set or supported.
In order to set up the coupling this section of the head is removed. One end of
the link is introduced into the block and the pin passed through the block and eye
of the link. The section is then restored and secured by the bolts, thus confining
the block, and consequently the pin and end of the link, in position.
When power is communicated to one of the shafts, rotary motion is imparted to
the connected head, and oscillating motions are imparted to the block and pin, and
rotary motion is imparted to the link. This causes a rotation of the other head
and consequently of the other shaft, the block and pin of the latter named head
oscillating or rocking in like manner to those of the first named head.
It will be found that the coupling is compact, strong, and durable, and may be
produced at less expense and that it works with reduced friction, and consequently,
greater ease and less noise than heretofore.
On the inner face of the annular section of the head is a groove, the walls of
which are adjacent to the journal portion of the oscillating block. By this
provision said block may be fully lubricated, the upper or outer wall of the groove
overhanging to prevent loss of the lubricant.
'Owing to the annular form of the section the head of the link may be readily
lubricated by oil or other lubricant admitted through said section.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Henry Harris Lake in the Great Seal Patent Office on the 16th June
1883.
ور
HENRY HARRIS LAKE, of the firm of Haseltine, Lake, & C° Patent Agents
Southampton Buildings, London, "IMPROVEMENTS IN COUPLING APPARATUS FOR
SHAFTS USED IN TRANSMITTING MOTION TO MACHINERY a communication to me
from abroad by William Johnston of Philadelphia Pennsylvania, United States of
America, Machinist
This invention relates to improvements in coupling joints for shafting and more
particularly to that class of shaft-couplings which are employed to transmit power
from one rotating shaft to another, and at the same time to allow the shafting
perfect freedom of motion at any angle within certain limits.
The said invention consists essentially in the novel construction and arrange-,
ment, of parts, whereby the expense of manufacture is reduced and the said
couplings are rendered more compact, strong, and durable; work with less friction
and noise; and are more readily fixed and taken apart, as compared with those
beretofore in use; provision is also made for lubricating the parts
In the accompanying drawing.
Figure 1 is a perspective view of the coupling constructed according to this
invention.
Figure 2 is a longitudinal section thereof on the line a, x, Figure 1, drawn to an
enlarged scale.
Figure 3 is a transverse section on the line y, y, Figure. 2.
Figure 4 is a transverse section on the line 2, 2, Figure 3.
Similar letters of reference indicate corresponding parts in the several figures..
A, A, indicate the two heads of the coupling each of which is formed of sections,
a, b, c which are connected by means of bolts B, B, the ends of the shafts. A¹ A¹'
being secured to the sections c. The sections b, c may however be formed in one
piece without affecting the operation of the coupling.
In the section a is a depression for the reception of an oscillating block C which
is formed with journals D which rest on the sections a and are retained by the
section b, the latter being of annular form.
In the block C is an opening extending at a right angle to the journal D, and
receiving an oscillating pin E, to which is keyed, or otherwise secured, one end of
the coupling link F whose end also enters an opening in the block C, it being
noticed that the said link connects the two heads of the coupling, as shown in
Figures 1 and 2.
To the faces of the sections à b of the head, contiguous to the body of the
block C, is secured "Babbitt " or other anti-friction metal d which receives the
wearing action of the block on the head.
The outer face of the section b is bevelled, as at e, the bevelled faces of the
sections of the two heads being in contact so that the said two heads run with less
noise and more ease, and are somewhat sustained on each other. In the con-
struction of the sections b the angle of the bevelled faces is adjusted relatively to
the angle at which the shafts A', A" are set or supported.
In order to set up the coupling, the section b of the head is removed. One end
of the link is introduced into the block C and the pin E passed through the block
and eye of the link. The section b is then restored and secured by the bolts B
thus confining the block C and consequently the pin E and end of the link, in
position.

page_text: When power is communicated to one of the shafts A¹ or A", say the shaft A¹,
.rotary motion is imparted to the connected head and oscillating motions are
imparted to the block C and pin E, and rotary motion is imparted to the link.
This causes a rotation of the other head and consequently of the shaft A¹¹ it being
noticed that the block C and pin E of the latter named head oscillate or rock in a
similar manner to those of the first named head.
It will be found that the coupling is compact, strong and durable, and may be
produced at less expense, and that it works with reduced friction and consequently
greater ease and less noise than heretofore.
.
On the inner face of the annular section 6 of the head A is a groove f, the walls
of which are adjacent to the journal portion of the oscillating block C. By this
provision the said block may be fully lubricated, the upper or outer wall of the
groove overhanging to prevent loss of the lubricant.
Owing to the annular form of the section b the head of the link F may be
readily lubricated with oil or other lubricant admitted through the said section.
Having thus fully described the said invention as communicated to me by my
foreign Correspondent, and the manner of performing the same, I wish it understood
that I claim in a shaft coupling
First A link, in combination with heads each of which is provided with an
oscillating block and pin, substantially as, and for the purpose, setforth.
Second The coupling link, in combination with a head formed of sections a, b,
between which is held the oscillating block with which the said link is connected,
substantially as, and for the purpose, setforth.
Third The heads having bevelled faces e which are in contact, substantially as,
and for the purpose, setforth.
Fourth A head provided with anti-friction metal interposed between the
oscillating block and the contiguous portion of the head, substantially as, and for
purpose, setforth.
Fifth An oscillating block having within it an oscillating pin to which the
coupling link of the heads is attached, substantially as, and for the purpose,
setforth.
Sixth A groove formed in one of the sections of the head adjacent to the
oscillating block thereof, substantially as, and for the purpose, setforth
In witness whereof I the said Henry Harris Lake have hereunto set my
hand and seal this Sixteenth day of June in the year of our Lord One
thousand eight hundred and eighty three
HENRY LAKE (L.S.)