Slotting and Shaping Machines.
Year: 1885

page_text: Slotting and Shaping Machines.
I JAMES BUTLER, Victoria Ironworks Halifax, Engineer and Machine Tool Maker,
do hereby declare the nature of my said invention for IMPROVEMENTS IN APPARATUS
TO REGULATE THE STROKE OF TOOLS FOR SLOTTING AND SHAPING MACHINES, to
be as follows:―
In Slotting Machines where the ram is counterbalanced and a quick return given'
to the stroke by means of a slotted lever, I employ on each side of the slotted lever
a spur wheel the boss of each wheel being close to each side of the lever, the spur
wheels are bored eccentric and the holes recessed on each side to receive two flanges
or discs, the latter are also bored eccentric to receive a bolt which passes through
the sliding block in the slotted lever the head of the bolt being against one of the
discs on the outside of one spur wheel and the nut on the outside of the disc on
the other spur wheel, the bolt and discs with each spur wheel forming a compound
eccentric.
To regulate the stroke of the tool the attendant unscrews the disc bolt and turns'
the fly wheel the latter being on the cone shaft gives motion to an intermediate
wheel which is mounted on the pinion shaft, the pinions on the latter give motion
to the spur wheels on each side of the slotted lever thus moving the bolt within
the discs nearer to or further out of centre with the spur wheels giving a shorter
or longer stroke, after the nut is screwed tight securing, the discs within the spur
wheels.
'
JAMES EDWARD CARTER,
Agent for the Applicant,
3, Craven Edge, Halifax.

page_text: '
Slotting and Shaping Machines.
I, JAMES BUTLER Victoria Ironworks Halifax Engineer and Machine Tool Maker
do hereby declare the nature of my invention for IMPROVEMENTS IN APPARATUS TO
REGULATE THE STROKE OF TOOLS FOR SLOTTING AND SHAPING MACHINES and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :—
In Slotting Machines where the ram is counterbalanced and a quick return given
to the stroke by means of a slotted lever, I employ on each side of the slotted lever
a spur wheel, the boss of each wheel being close to each side of the lever, these
spur wheels are bored eccentric and the holes recessed on each side to receive two
flanges or discs, the latter are also bored eccentric to receive a bolt which passes
through the sliding block in the slotted lever the head of the bolt being against one
of the discs on the outside of one spur wheel and the nut on the outside of the
disc on the other spur wheel the bolt and discs with each spur wheel forming a
compound eccentric.
To regulate the stroke of the tool the attendant unscrews the disc bolt and turns
the fly wheel the latter being on the cone shaft gives motion to an intermediate
wheel which is mounted on the pinion shaft, the pinions on the latter give motion
to the spur wheel on each side of the slotted lever thus moving the bolt within the
discs nearer to or further out of centre with the spur wheels, giving a shorter
or longer stroke after the nut is screwed tight securing the discs within the spur
wheels.
In order that my invention may be fully understood, I have hereunto annexed
3 sheets of drawings illustrating my improvements applied to a slotting machine.
Fig. 1 is a side elevation of a slotting machine with my improvements applied
thereto.
Fig. 2 is a back elevation of Fig. 1.
Fig. 3 is a side elevation of slotted lever shewing slide block, spur wheel, and
disc secured in position for full length of stroke.
Fig. 4 is a plan partly in section shewing the spur wheels on each side of the
slotted lever with discs and slide block secured in position for full length of stroke.
On the cone shaft 1 is the fly wheel 2 and pinion 3 the latter gears with and
drives the wheel 4 on axis of shaft 5 on the latter are the pinions 6, 7, on each side
of machine gearing with and driving the spur wheels 8, 9, the latter are bored
eccentric and the holes 10, 11, recessed to receive the flanges or discs 12, 13, 14, 15
the latter are also bored, eccentric to receive the bolt 16 which passes through the
discs and the sliding block 17 in the slotted lever 18 the head 19 of the bolt 16
being against the flange or disc 15, on the outside of the spur wheel 9, and nut 20
of the bolt 16 being against the flange or disc 12 on the outside of the spur
wheel 8.
To regulate the stroke of the tool the attendant unscrews the nut 20 of the disc
bolt 16 and turns the fly wheel 2 in the direction of the arrow, when required to

page_text: shorten the stroke, which will by the pinion 3 wheel 4 pinions 6, 7, cause the spur
wheels 8, 9 to rotate in direction of the arrows whilst the bolt 16 prevents the disc's
rotation thus bringing the bolt 16 and slide block 17 nearer to the centre of the
spur wheels 8, 9, thereby shortening the stroke to the required length as shewn by
the index on the spur wheel 8. The nut 20 is then screwed tight against the
disc 12 and the bolt head 19 is drawn against the disc 15 and one end of the
bush 21 in the sliding block 17 is drawn against the disc 13 and the other end of
the bush 21 is drawn against the disc 14 leaving the block 17 free, thus firmly
securing the discs within the spur wheels 8, 9. The machine is then ready for use,
the slotted lever being free oscilate on the bush 22 during the rotation of the
wheels 8, 9 whilst the end 23 by means of the connecting rod 24 stud 25 moves
the ram 26 backwards and forwards every revolution of the wheels 8, 9.
Having now particularly described and ascertained the nature of this my
said invention and in what manner the same is to be performed I declare that
what I claim is
1. The combination of the spur wheels such as 8, 9, dises, 12, 13, 14 and 15,
bolt 16, as and for the purpose herein fully described and illustrated.
2. The use in combination of the fly wheel 2, pinion 3, wheel 4, pinions 6, 7,
wheels 8, 9, substantially as described and herein illustrated.
3. The spur wheels 8, 9, discs 12, 13, 14, 15, bolt such as 16, block 17, slotted
lever 18, in combination as herein described and as illustrated.
Doted thin 11th don of n
L 1007