Improvements in Slotting Machines.
Year: 1894

page_text: Date of Application, 10th Sept., 1894
Complete Specification Left, 8th June, 1895-Accepted, 7th Sept., 1893
Improvements in Slotting Machines.
We, FRANCIS BERRY, and CHARLES BERRY, Engineers, of the Firm of
Messrs. Francis Berry and Sons, Engineers and Tool Makers, of Sowerby Bridge
in the County of York, do hereby declare the nature of this invention, to be as
follows:-
The object of our invention is to automatically tilt the tool box, after the down
stroke or cut of the tool, so that it returns clear of its work, and so does not blunt
or injure the edge of the tool.
At the back of the top end of the tool box, we form an incline, against the face
of which bears preferably a pivotted pressure lever, connected to the pressure
lever is a spring pressure rod or weighted rod, sufficient when the tool has finished
each cut, to over-come the weight of the tool box and til: it upon its pivot, so that
the tool clears its work for its return.
Dated this Eighth day of September 1894.
JOHN E. WALSH,
Crossley Street, Halifax, Patent Agent for the Applicants.
We, FRANCIS BERRY and CHARLES BERRY, Engineers of the Firm of
Messrs. Francis Berry and Sons Engineers and Tool Makers of Sowerby Bridge
in the County of York, 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 :-
The object of our invention is to automatically tilt the tool box after the down
stroke or cut of the tool, so that it returns clear of its work and so does not blunt
or injure the edge of the tool.
DESCRIPTION OF DRAWINGS.
Fig. 1. is a side elevation of our improvements applied to a slotting machine.
Fig. 2. is a front elevation of Fig. 1.
A is the machine frame, upon the bottom of the ram A, we fix a falling tool
box B, hinged or pivotted upon a swivel pin C, fitted with conical bearings for
taking up wear and tear. At the back of the top end of the tool box B, attached
to the ram or slide A, we form an incline D, against the face of which bears the
pivoted pressure levers E, connected to one of these pressure levers is a pressure
rod F fitted with two adjustable sleeves G, for tilting or tightning the tool box ;
a fixed bracket H is attached to the side of the machine frame A₁.
The pressure levers E are keyed upon the ends of a pin or shaft J, carried by
the tool box B, which forms its pivot or bearing.
As the ram A makes the upstroke and nearly reaches the end of its traverse, the
spring K of the bottom sleeve G, strikes the fixed bracket H, which on the
18vi

page_text: continued upward movement of the ram, forces the lever E down on to the incline D,
thereby firmly holding it in position for the down or cutting stroke; when the tool
has finished its down stroke the top sleeve G strikes the spring K above the fixed
bracket H, and by the continued downward movement of the ram, the levers E
are raised causing the tool box to fall or tilt over as shown in dotted lines for the
tool to clear its work on the upstroke.
The springs K act as buffers for lessening the force of contact and facilitate
the adjustment of the sleeves according to the various lengths of stroke of the
-cutter.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
Automatically tilting the tool box of slotting machines by means of pivoted
pressure levers E, incline D, upon the ram A, rod F, sleeves G and fixed bracket H,
operating in the manner and for the purposes substantially as shown and described.
Dated this Seventh day of June 1895.
JOHN E. WALSH,
Patent Agent,
Crossley Street, Halifax, Patent Agent for the Applicants.