IMPROVEMENTS IN SLOTTING MACHINES
Year: 1885

page_text: On the
I SAMUEL DIXON of the firm of Kendal and Gent of Springfield, Salford in the
County of Lancaster Machine Tool Makers do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN SLOTTING MACHINES" to be as follows:-
My Invention relates to the machine tools well known under the designation of
slotting machines and used in the slotting and shaping of metals the object of my
invention being to render such machines more useful by increasing the scope of
their capabilities. To this end I provide the reciprocating ram or tool slide of the
slotting machine with a spindle which can be revolved and be adapted to receive
mills or drilling or boring tools or cutters. When desirable I provide an additional
feed motion whereby the said ram can be moved at a speed suitable for milling,
drilling or boring. In a suitable construction the said spindle is enclosed within
the hollow ram being mounted within suitable bearings in the said ram.
upper end of the said spindle is a spur wheel which gears with a wheel or pinion
which slides upon a side shaft and is formed or provided with a sleeve which
revolves in a bearing projecting from the rain so that that the said wheel or pinion
is carried up and down with the ram. Arrangements are made for connecting and
disconnecting the main driving shaft with or from the crank shaft or the shaft
In a
which directly actuates the ram and also with or from the said side shaft.
method of construction which I have adopted the said side shaft receives motion
through bevel gearing from a shaft which can be connected by means of a removable
driving belt with the main driving shaft the latter being arranged at right angles
to the crank shaft but I do not confine myself to this arrangement. The main
driving shaft may transmit motion to the crank shaft through a clutch or other
means may be adopted for connecting and disconnecting the parts. The con-
nection with the ram is adjustable so that the mill or tool may be caused to operate
at any required height above the table within the limits of adjustment. When
a feed notion is applied to the ram it is arranged to be capable of being discon-
nected or removed when not required to be used. In place of moving the ram
when feeding the spindle may be moved endwise in its bearings. The table is by
preference provided with feed motions for all directions and with a circular motion
these movements being available either for slotting or for milling or shaping with
revolving cutters.

page_text: :
Improvements in Slotting Machines.
I SAMUEL DIXON of the firm of Kendal and Gent of Springfield Salford in the
County of Lancaster Machine Tool Makers do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN SLOTTING MACHINES" and in what manner
the same is to be performed to be particularly described and ascertained in and by
the following statement and accompanying drawings :-
My Invention relates to the machine tools well known under the designation of
slotting machines and used in the slotting and shaping of metals the object of my
invention being to render such machines more useful by increasing the scope of
their capabilities. To this end I provide the reciprocating ram or tool slide of the
slotting machine with a spindle which can be revolved and be adapted to receive
mills or drilling or boring tools or cutters.
My Invention will be most clearly understood when described with reference to
the accompanying drawings wherein Fig. 1 represents a Front Elevation and Fig. 2
a Side Elevation of a Slotting Machine adapted also to be used for milling in
accordance with my invention the said Figs. being drawn to a scale of about half
an inch to the foot. In the said Figs. a is the ram which is mounted in slides as
is usual and b. is a mill which is fixed upon the lower end of a milling spindle
which passes through the interior of the ram from end to end and is mounted to
revolve in suitable bearings. Upon the upper end of the said spindle is fixed
a spur wheel c. which gears with a pinion d which is fitted to slide upon a vertical
shaft e. and is compelled to revolve with such shaft by ordinary or suitable
means. The said pinion is formed or provided with a sleeve which is fitted to
revolve in a bearing which is bored in a part a¹ which projects from the ram so
that when the ram moves up or down the pinion is caused to slide upon its
shaft. A part near the lower end of the shaft e. is fitted to revolve in a bearing f.
and upon the lower end of the same shaft is fixed a bevel or mitre spur wheel g.
which is in gear with a second wheel h. The said wheel h. is fixed upon a hori-
zontal shaft which is mounted in bearings formed in a bracket i. and upon the
outer end of this shaft is secured a belt pulley j. The said pulley receives motion
from a driving pulley j¹ which is fixed upon one end of the main shaft k. which
passes through the standard or framing of the machine and is provided with
a stepped cone pulley . whereby the machine is actuated. In the example the
crank shaft which actuates the ram when the machine is used for slotting
The
receives motion from the shaft k. through two intermediate shafts n and o.
shaft n is connected by means of bevel gearing with the shaft k. the said gearing
being concealed within the framing and a pinion p. upon the said shaft gears with
a spur wheel r. upon the second intermediate shaft o. This shaft o. is connected
by gearing with the said crank shaft. The pinion p. is loosely mounted upon its
shaft and can be engaged with or disengaged from the said shaft by means of
a clutch which can be put into and out of gear by means of a hand wheel 8.
Upon the outer end of the shaft n is fixed a stepped cone pulley t. which can be
connected by means of a belt with a corresponding pulley u. which is fixed upon
a shaft which is provided with a worm which gears with a worm wheel v. which

page_text: The said
transmits motion through a reversing clutch motion to the shaft w.
shaft w. can be connected with any one of the shafts x. x. x. which impart the self
When the
acting feed movements to the table of the machine as is usual.
machine is used for slotting the pinion p. is connected with the shaft o. the belts
being taken off the pullies t. and u. and the pullies j. and j¹. The shaft w. receives
movement when required from a ratchet wheel and pawl motion at y. as is
usual. It will be understood that the mill b. is not in place upon the end of the
When
milling spindle and that a slotting tool is fixed upon the ram as is usual.
the machine is to be used for milling the ram is set at a suitable height. To enable
this setting of the ram to be effected the connection of the link with the ram
is adjustable the stud with which the upper end of the link engages being
carried by a block which is fitted to slide within the ram and can be fixed at the
required point by means of bolts at z. When the ram is adjusted in height it is
clamped in its slides by turning a screw b¹ which presses a block against the ram
or by other suitable means. The pinion p. is disengaged from the shaft n so that
the shaft o. is not revolved. Belts are placed upon the pullies t. u. and j. j¹ and a
suitable milling cutter is secured to the milling spindle. When the machine is set
in motion the ram will remain stationary and the milling spindle will receive
a revolving motion. To impart the feed movements for the table the shaft w. is
disengaged from the ordinary feed motion y. and is engaged with the milling feed
motion v. which is proportioned to impart a slower feed to the table to suit the
milling operation. I may arrange for the pinion d. to be shifted out of gear with
the wheel c. at the times when the machine is used as an ordinary slotting machine.
The machine might be used in drilling or boring operations by providing a suit-
able feed motion for the ram but do not now consider such an use to be so
desirable as the use of the machine for milling operations. The arrangements for
imparting the feed movements may be varied and I do not confine myself to any
particular arrangement of shafts and gearing for actuating the parts of the machine
so long as the milling spindle and the vertical shaft e. connected with or capable of
being connected with such spindle are retained.
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:
1. A slotting machine adapted to be used also as a milling machine having a
spindle mounted to revolve in bearings in or attached to the rain and connected or
capable of being connected with a vertical side shaft whereby a revolving motion
can be imparted to such spindle substantially as set forth and indicated.
2. A slotting machine having a revolvable spindle mounted in or upon the ram
and having means for disengaging the crank shaft or for arresting the sliding
movements of the said ram and with means for revolving the said spindle the said
machine being also provided with a special feed motion suitable for the milling
operation substantially as and for the purposes set forth and indicated.
3. The combination of parts forming the complete machine suitable both for
slotting and for milling substantially as set forth and indicated.
T: 551 low of Al 1996
DUTTON & FULTON,
Agents.