Improvements in Presses.
Year: 1893

page_text: Date of Application, 4th Jan., 1893
Complete Specification Left, 22nd Sept., 1893-Accepted, 9th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in Presses.
I JOHN BATES of 186 Spring Hill in the City of Birmingham, in the County
of Warwick, Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention which is intended to supsersede the hand presses in ordinary use,
so far at least as they are employed in stamping, piercing or other similar
processes, consists of a cast iron base plate and pillar combined into which is fitted
a moveable slide and its top is made to carry a rocking lever with balls or weights
of unequal size on its ends. To one end of the lever I attach a joint rod and foot
treadle. The rocking lever is so constructed that with the foot treadle heavy or
light blows can be readily and rapidly struck. The heavier of the two lever
weights suffices to raise the slide and top tool immediately the pressure of the
foot on the treadle is removed, and not only so but as the press is worked by the
foot alone the girl or other person working it has both hands at liberty to place,
adjust and remove the article to be stamped or otherwise operated on.
For heavy work I construct my press with a second rocking lever properly
adjusted and made to work in conjunction with the parts and by the means above
described.
Dated shin 21 1
1005
COMPLETE SPECIFICATION.
Improvements in Presses.
I JOHN BATES of 186 Spring Hill, Birmingham in the County of Warwick,
Engineer, 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 :-
My invention which is intended to supersede the hand presses in ordinay use so
far at least as they are employed in stamping piercing or other similar processes
consists of a cast iron base plate combined with pillar into which is fitted a
moveable slide the top of which is made to carry a rocking lever with balls or
weights of unequal size on its ends. To one end of this lever I attach a joint rod
which is also connected with a foot treadle. The rocking lever is so constructed
that with the foot treadle heavy or light blows can be easily and rapidly struck.
The heavier of the two balls suffices to raise the slide and top tool immediately
the pressure of the foot on the treadle is removed and not only so, but as the press
is worked by the foot alone, the person working it has both hands at liberty to
place adjust and remove the article to be stamped or otherwise to be operated
upon. My press can also be fitted with poppets, stops and other suitable appliances
and can be used as a machine for planishing metals in addition to the uses specified
above.
That my invention may be more readily understood 1 have attached hereto
three sheets of drawings which I now proceed to explain.
Fig. A shews the complete press.
Fig. B is a rocking lever with balls or weights of unequal size on its ends. These
balls are so constructed and connected with the body of the lever that they can
be casily moved to a greater or less distance from the centre, and thus, the force of
Pin1

page_text: the blow on the material to be stamped is either increased or diminished. The
balls are retained in the desired position by means of set pins.
Fig. BA is a section of one end of the rocking lever.
Fig. BB shews the loose ball.
Fig. Be is the stud or pin for uniting the ball with the body of the lever.
Fig. C is a rocking shaft one end of which is squared and screwed as shewn.
The other end is formed at right angles with its main part. This shaft is
designed and intended to form a centre on which the lever rocks, and also to
actuate the slide which carries the top tool, and for these purposes it is fitted into
the lever and also into the body of the press-the cranked end operating a
block (CB) which is fitted into a suitable recess in the slide.
Fig. C is an end view of the rocking shaft.
Fig. CB is the block which works the tool slide and which is operated by the
rocking shaft C.
Fig. D is a side view of the casting which forms the body or pillar of the press,
shewing the position of the rocking shaft therein, which operates the rocking
lever.
Fig. D is an end view of the body of the press.
Fig. DB is a front view of the body of the press.
Figs. E, E and E³ are side, front and end views of the slide which carries the
top tool.
Fig. F is the foot treadle.
Fig. A is the joint rod which connects the treadle and rocking lever.
When the foot of the person working the press is placed on the step of the
treadle it brings down one end of the rocking lever carrying with it the rocking
shaft which as before described acts on the block CB and forces the slide and top
tool onto the object to be stamped-the force of the blow struck as is before
explained, being regulated not by the foot alone, but also and more effectually by
the distance from the centre at which the balls are fixed.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
A foot press fitted with regulating balls whereby the force of the blow struck
can be controlled and regulated and which is constructed in accordance with the
foregoing description and the drawings attached hereto.
Dated this Twentieth day of September 1893.
JOHN BATES.