Improvements in Means for Automatically Varying the Length of Connecting Rods and for Transmitting Reciprocatory and Rotary Motion.
Year: 1898

page_text: Date of Application, 31st Dec., 1898
Complete Specification Left, 31st Oct., 1899-Accepted, 30th Dec., 1899
PROYIONAL
DIECIFICATION.
Improvements in Means for Automatically Varying the Length of
Connecting Rods and for Transmitting Reciprocatory and Rotary
Motion.
I, THOMAS GARE, of Bramhall House, Bramhall Moor, Stockport, in the County
of Chester, Engineer, do hereby declare the nature of this invention to be as
follows.-
This invention has for its object to provide an improved form of connecting
rod variable in length, for general use in machinery where such are required,
say in pegging, nailing, slugging and rivetting machines for actuating the horn
or work support and also means whereby reciprocatory or rotary motion can be
transmitted without the use of intermediate toothed gearing, flexible shafting
or compressed air, say for instance the knife in the hoin or work support of a
pegging machine or the hammer of a rivetting or the bit of a carving or
chipping tool having a reciprocatory action.
As applied to connecting 1ods my invention consists in forming the same
telescopically in two parts, the upper part forming a ram or piston and the
lower part a cylinder for the same to move in and adapted to hold a body or
column of suitable fluid, say water. At a point below the said piston or ram
the said cylinder is formed with a branch leading to a small vessel and furnished
with a tap. When the said tap 18 open the said body or column of water 18
allowed to flow into the said vessel so that the said piston or ram practically
always rests on the said body oi column of water in the said cylinder
As the rod shortens the body or column of water in the cylinder is reduced
correspondingly by being forced against the said piston or iam into the said
vessel, whilst when the rod lengthens again, an equivalent body of water 18
allowed to flow back into the cylinder as it recedes
When the connecting rod is to rise bodily, communication between the said
cylinder and vessel is cut off automatically by the said tap and the suction created
between the body or column of water and the face of the piston oi ram as the
latter is raised, engages the cylinder or lower part of the 1od and thus locks
the two 1od parts practically together, the connection being broken again the
moment the said tap 18 opened
As applied for transmitting reciprocatory or rotary motion, my invention con-
sists in employing between the source of power and the part of the tool to which
it is to be transmitted a body oi column of water adapted to be moved to and fio
in a flexible or rigid conduit.
This to and fro motion effect by the alternate thrust and suction of a piston
acting upon one end of the body or column of water, whilst its other end in a
like manner moves a piston, adapted to impart duectly or indirectly motion to
the part of the tool requning same
The piston at the motive power end of the said conduit may be replaced by a
flexible bag or tube adapted to compress and expand alternately and the piston
at the tool end connected to the said conduit by an elastic coupling, whilst the
piston itself is adapted to move in a cylinder forming part of the tool bearing
or frame
The piston employed at the motive power end of the said conduit may be

page_text: also connected to the latter by a flexible coupling and adapted to move in a
cylinder
Dated this 30th day of December 1898.
Improvements in Means for Automatically Varying the Length of
Connecting Rods and for Transmitting Reciprocatory and Rotary
Motion.
I, THOMAS GARE, now of Red House, Warren Drive, New Brighton, in the
County of Chester, Engineer, late of Bramhall House, Bramhall Moor, Stockport,
in the County aforesaid, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement
This invention has for its object to provide an improved form of connecting
rod variable in length, for general use in machinery where such are required,
say in pegging, nailing, slugging and rivetting machines for actuating the horn
or work support and also means whereby reciprocatory or rotary motion can be
transmitted without the use of intermediate toothed gearing, flexible shafting
or compressed air, say for instance to the knife in the horn or work support of
a pegging machine or to the hammer of a rivetting or the bit of a carving or
chipping tool having a reciprocatory action
And in order that my invention may be more fully understood I have caused
to be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures
Fig 1 is a side view partly in section of a pegging machine showing my
improvements applied to the connecting rod of the horn drop, the horn shaft, the
driver and the knife in the horn, Fig 2 is a detached back view of Fig 1,
Figs & 4 are vertical sections drawn to an enlarged scale, and Fig 5 a plan
of Fig 3 of a horn of a shoe sewing machine with while operated in accordance
with my invention Fig 6 18 a longitudinal section of a reciprocating tool such
as a hammer, and Figs 7 & 8 a side view and a plan of a ratchet brace having
my improvements applied. Fig 9 is a longitudinal sectional side view of my
improved means for transmitting continuous rotary motion between two distant
points, and Fig 10 a side view of a modification of my invention.
In carrying out my invention and applying same to the connecting rod of a
drop in a pegging machine, see Figs 1 & 2, I form the said rod telescopically in
two parts a, b, the lower end of the upper part a forming a ram or piston c and
the upper end of the lower part 6 a cylinder d for the same to move in and
adapted to hold a body or column of fluid, sav water e At a point below the
piston or ram the said cylinder is formed with a branch leading to a small
vessel 7 and furnished with a tap h When the said tap is open the said body
or column of water is allowed to flow into the vessel so that the piston or
ram e practically always rests on the body or column of water in the cylinder d
As the connecting rod a, b shortens, the body or column of water in the
cylinder d is reduced correspondingly by being forced against the piston or ram
into the vessel 7, whilst when the 1od lengthens again, an equivalent body of
water is allowed to flow back into the cylinder d as it recedes
When the connecting rod a, b is to rise bodily through the action of the cam
groove in the side of the cam ?' in which the upper end of the rod part engages
communication between the cylinder d and vessel g is cut off automatically by the

page_text: tap and the suction created between the body or column of water and the
face of the piston or ram c as the latter is raised, engages the cylinder d or
upper end of the rod part 6 and thus locks the two parts a, b practically together,
the connection being broken again the moment the tap 18 opened
In the present instance the tap h is opened and closed by the periphery of the
cam on the driving shaft of the machine acting upon a rod 1 connected to the
tap lever m and placed under the influence of a spring 1.
In order to prevent the air being sucked into the cylinder d, the latter is
connected to the piston c by a flexible coupling n, say of india rubber, tightly
shrunk thereon.
In applying my invention to the horn shaft o of a rivetting, slugging or
nailing machine, the horn shaft o has two pistons or rama c¹, c² one being at the
bottom and the other near the top thereof. The said pistons or rams work in a
double cylinder d¹, d' adapted to slide vertically in the frame of the machine, the
said pistons or rams being also connected to their cylinders by flexible coup-
Ings n', n. The fluid in the said cylinders 18 also controlled by a tap h¹, the
love m of which 18 operated by the periphery of a cam ol on the diving shaft k,
actuating a rod p secured to the tap lever m¹ and placed under the influence of a
spring p
The said double cylinder has secured a 1od q, the upper end of which is operated
upon a cam groove formed in the side of the cam o¹ secured to the driving
shaft k.
The said double cylinder is also filled with water and the cam o¹ and the cam
groove in the side thereof are so timed as to cut off, through the rod p and
tap, communication between the said pistons or rams and lock the cylinder d', d¹
and hoin shaft o together, the moment the latter requires holding, whilst just
before foeding the work, the cam groove in the can side of lowers the cylinder d', d'
and horn shaft o.
Although having shown in the drawing the connecting 1od device and that of
the horn shaft in one machine, it must be understood that they are not used
conjointly but separately.
When using my improvements for imparting reciprocatory motion, say to
the driver of a pegging, rivetting or nailing machine, I form the upper end
of the driver slide into a piston or ram r working in a cylinders formed at the
end of a flexible or jointed pipe connected to a cylinder d³ fixed to the frame
of the machine and containing a piston or 1am 3, the outer end of which, by a
spring is pressed against a cam secured upon the diving shaft which actuates
the said piston
Between the said two pistons or rams & 18 also emploved a column of
water which, the moment the driver is required to give a blow, 18 displaced in
the pipet by the piston and forced against the piston or ram r of the duver
slide, whilst the return of the latter takes place, by withdiawing the column of
water and thereby raising the drive slide through the suction caused by the
return of the piston c³
In a like or similar manner a tacker in a lasting machine may be operated as
will be readily understood
When applying my invention to the horn knife of a pegging machine, see
Fig 1, I form the inner end of the knife into a piston o iam r¹ inside a
cylinder fixed inside the horn r
The lower end of the cylinder & 18 connected by a flexible or jointed pipe ¹ to
another cylinder d' fixed against the frame of the machine containing a piston c
pressed by means of a spring u² against a cam y on the driving shaft, a column
of water being also emploved between the said pistons or rams through which
the knife to is actuated at intervals as may be required
In applying my invention for the rotation of a whirle in the horn of a shoe
sewing machine, see Figs 3, 4 & 5, I employ a cylinder d, s in the horn r, each
end of which contains the pistons or rams & e respectively. The piston or

page_text: ram I hinge to a crank z formed on the vertical shaft 1 generally employed in
the horn support and the piston r to a double armed lever 2 pivoted to the horn
and having attached the two ends of a metal or flexible band 3 passed at its
opposite end around the whirle 4 and formed with indents 5 to engage in corre-
sponding recesses formed in the whirle A column of water e is also employed
8
in the cylinder d, s between the said pistons or iams, the action of which is the
same as described in reference to Fig 1
As applied for transmitting and imparting reciprocatory motion, say to a
hammer or ratchet brace, Figs 6, 7 & 8, I employ between the source of power
and the part of the tool to which it is to be transmitted a body or column of
water e in a flexible or jointed pipe t.
In the case of a hammer, see Fig 6, I secure the same into a piston or ram r
adapted to reciprocate in a cylinder s, the said piston or ram being furnished at
its inner end with a flexible washer 6 which forms a packing and the cylinder
and piston being connected together by means of a flexible coupling n
The other, or motive power end of the said pipe is also connected to a cylinder d
containing a piston or ram which is reciprocated sav by means of a rod 7 and
crank disc 8 having rotary motion imparted in any suitable manner
In case of a ratchet brace the outer end of the piston or ram r which imparts
motion to the brace, Figs 7 & 8, 18 jointed to the lever 9 which carries the
hatchet pawl 10
When applying my invention for transmitting rotary power, see Fig 9, I also
employ a flexible or jointed pipe t connected to the cylinders d & s containing
pistons or rams c Each of the latter I connect by rods 7, 7 to a crank disc 8, 8
respectively so that the column of water e displaced in the pipe and cylinders d & s
by the piston or ram c, imparts motion to the other piston o1 1am r and the
same by the respective 1od 7 to the crank disc 8
In lieu of abtaining the reciprocatory motion of the column of water in the
said pipe by a cylinder, it may be obtained by a flexible water holder, for instance
such as shown in Fig 10, adapted to compress and expand alternately
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 18:
1st. A connecting rod adapted to be automatically varied in length, consisting
of two rod parts, the adjacent enda of which are adapted to slide telescopically
on each other, one end forming a cylinder and the other a ram or piston therein
and the said cylinder being adapted to receive liquid the volume of which is
automatically variable in accordance with the variation in the length of the
connecting rod, all substantially as set forth.
2nd. In a device such as specified in the preceding claim, a cylinder formed
with a water supply pipe furnished with a tap, all substantially as and for the
purpose set forth
3rd As a means of transmitting and imparting reciprocatory or 10taly motion,
the combination of two rams or pistons each adapted to move in a cylinder
respectively connected together by a pipe or conduit containing a column of
water, one of the said pistons or rams being reciprocated by motive power and
the other through the medium of the said column of water and action of the said
piston or ram, all substantially as set forth.
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LOL 1000
F BOSSHARDT & Co,
4, Corporation Street, Manchester, Agents to Applicant