Improvements in or connected with Metal Shearing Machines.
Year: 1898

page_text: Date of Application, 28th Oct., 1898-Accepted, 3rd Dec., 1898
COMPLETE SPECIFICATION.
Improvements in or connected with Metal Shearing Machines.
I, BRUNO WESSELMANN, of 58, Friedländer Weg, Göttingen, in the Empire of
Germany, Engineer, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and
tained in and by the following statement and accompanying drawings :-
ascer-
My said invention relates to metal shearing machines and particularly to the base
or foundation of such machines.
According to my invention I form such foundations or stand from a single inetallic
plate of a suitable contour and I bend or press the same to the required shape.
The accompanying sheet of drawings clearly illustrates my invention.
Fig. 1 is a side elevation of a metal shearing machine provided with the improved
stand or foundation.
Fig. 2 is a face view of the shaped plate before being bent to the required
formation.
Figs. 3, 4 and 5 are cross sections showing various forms into which the bed plate
may be bent.
The improved foundation or bed plate as indicated in the drawings is such that
the same may be readily formed from a single plate of metal. This metallic plate a,
the thickness or strength of which would vary according to the size and power of the
shears, is shaped as shown in Fig. 2.
The plate is then bent or pressed by suitable means at the points indicated by
the dotted lines until it assumes the form shown in cross section in Fig. 3 or that of
Fig. 4. The bent in portion c of the plate a shown in Fig. 3 and the bent
out portion c in Fig. 4, serves as the foot by means of which the shears are
supported.
If desired the foot c¹ may be separate from and secured to the plate a as indicated
in Fig. 5.
With this improved formation of bed plate the cutting blades m and m¹ are so
arranged relatively to each other that the lever h to which the blade m is secured
lies in an angular recess formed by the hending back of the upper portion a of the
bed plate, the under portion b of the bed plate carrying the fixed blade m¹. By this
arrangement the cut portions f f of the work F can both be conducted to the rear
of the shears below the pivot bolt o, without necessitating any appreciable bending of
the cut portions of the work.
The feeding forward of the work is thus greatly facilitated as only a slight amount.
of friction and springing of the cut plates is induced. In addition to the foregoing
advantages the shears are strengthened by the improved formation of bed plate or
foundation, they are light and can be constructed at a cheaper rate.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is :-
In metal shearing machines forming the foundation or stand a b and c from a

page_text: metallic plate suitably cut or shaped and bent or pressed to the required formation
substantially
as described
illustrated
1000
SubstantiaITY
Dated this 27th day of October 1898.
For the Applicant,
E. K. DUTTON & Co.,
Chartered Patent Agents, 5, John Dalton Street, Manchester.