Apparatus for Cutting Grooves in Metal Plates.
Year: 1899

page_text: Date of Application, 25th July, 1899
Complete Specification Left, 24th Apr., 1900-Accepted, 16th June, 1900
Germany, Civil Engineer.]
Apparatus for Cutting Grooves in Metal Plates.
I, EMILE DANIEL OPPERT, of 109, Victoria Street, Westminster, in the County
of London, Retired Banker, do hereby declare the nature of this invention to
be as follows:-
This invention relates to apparatus for cutting grooves in metal plates to be
used for saws or for other purposes, and has for its object efficient apparatus
whereby the required number of grooves may be cut on one side of such plate
in a single operation and at the required angle to the longitudinal axis of
said plate.
According to my invention the plate or plates to be grooved are fixed in a
suitable manner to a slide rest or fable, which latter is adapted to slide diagon-
ally or otherwise across the machine and to co-operate with a set or sets of
rotary or other cutters. These cutters are arranged parallel to the line in which
the slide rest or table travels, and are actuated through suitable gear from any
convenient source of power.
.
The slide rest or table slides on or between guides and may be operated by
screw shafts or rods which engage with nuts on the said rest or table and which
are actuated by bevel or other gear from a rotary shaft driven, through the
intervention of suitable gear and a second shaft, from the driving shaft.
Carried by the frame of the machine are a suitable number of brackets in
which are journalled shafts carrying the cutters. Journalled also in these
brackets are other shafts which are geared to the said shaft carrying the cutters
and geared also (by bevel or other gear) to the aforesaid second shaft.
When the apparatus is in operation, the slide rest or table moves towards
the cutters as the latter are actuated, in such manner that grooves are cut rapidly
and with regularity on one side of the metal plate.
The cutter shafts and cutters are so arranged that the cutters may be arranged
at any suitable distance from each other throughout the machine, and the slide
rest or table is adapted to be adjusted with relation to the cutters according
to the depth required to be given to the grooves.
This adjustment of the slide rest or table may conveniently be effected by
means of supporting the said slide rest upon wedge shaped blocks. These wedge
shaped blocks rest upon inclined surfaces and are adapted to engage respectively
with the oppositely screw threaded ends of a rotary rod. Upon turning this
rod in one or other direction, the wedge shaped blocks are caused to move upon
the inclined surfaces in such manner as to either increase or decrease the clear-
ance between the slide rest and the cutters, as required.
When the plates are to be used for saws they are grooved on both sides, the
grooves on one side being preferably situated midway between the grooves on the
Opposite side thereof in the well known manner.

page_text: After each cutting operation the slide rest or table is returned in readiness
for the grooving of a fresh surface.
Dated this 25th day of July 1899.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
Apparatus for Cutting Grooves in Metal Plates.
I, EMILE DANIEL OPPERT, of 109, Victoria Street, Westminster, in the County
of London, Retired Banker, 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:-
1
This invention relates to apparatus for cutting grooves in metal plates to be
used for saws or for other purposes, and has for its object efficient apparatus
whereby a number of grooves of the required depth may be cut on one side of a
plate in a single operation and at the required angle to the longitudinal axis
of said plate.
According to this invention the plate or plates to be grooved are fixed in a
suitable manner to a slide rest or table, which is adapted to slide diagonally
or otherwise across the machine and to co-operate with a set or sets of rotary
or other cutters carried by shafts supported in brackets on the machine frame.
These cutters are arranged parallel to the line in which the slide rest or table
travels, and are actuated through suitable gearing from any convenient source
of power.
The slide rest or table is adapted to be adjusted with relation of the cutters in
such manner as to permit grooves of any required depth to be cut in the plates.
This adjustment of the slide rest or table is effectel by supporting the top
of said rest on wedge shaped blocks which bear upon inclined surfaces carried
by the rest or table and which are adapted to raise or lower said rest or table
accordingly as they are moved toward or away from each other.
The slide rest or table slides on or between guides and is operated by. screw
shafts or rods which engage with fixed nuts or tapped holes on the said rest or
table and which are actuated by bevel or other gearing from a rotary shaft
driven, through the intervention of suitable gearing from the driving shaft.
In order that my invention may be clearly understood and readily carried
into effect I will proceed to describe the same more fully with reference to the
accompanying drawings in which:-
-
Figure 1 is a plan of the apparatus.
Figure 2 is a vertical transverse section on a larger scale, on the line.,,
Figure 1. .
Figure 3 shows, also on a larger scale, a group of cutters and their driving gear.
Figure 4 shows also on a larger scale, part of a saw blade grooved by means
of the apparatus.
Figure 5 is a longitudinal sectional view of the sliding table, showing the
means for adjusting the height of the same.
A is the frame of the machine. B is the base of the slide rest or table.
are wedge shaped blocks upon the inclined surfaces of which the inclined
surfaces of wedge plates b, b rest. 3 is the top plate of the slide rest, which
top plate rests upon the wedge plates b. b. 63 is a rod which has its opposite
ends screw threaded in opposite directions and engages with correspondingly
screw threaded holes in the blocks 61, 61. Lugs such as 64, each of which is pro-
vided with a screw threaded hole, are formed on or attached to the slide rest.
·

page_text: a, a are grooves or guides which run diagonally across the frame and in which
projections on the base of the slide rest are adapted to travel.. C, C are screw
threaded rods which engage with the lugs 6+, 6 and are journalled in suitable
bearings carried by the machine frame. c, c are bevel gear wheels carried by
the rods C, C. D is a driving shaft journalled in bearings carried by the
machine frame. d, d are bevel gear wheels carried by the shaft D and gearing
with the bevel wheels c, c on the rods C, C. E is the main driving shaft
journalled in bearings carried by the machine frame.
e, care bevel wheels
carried by the shaft E. The shafts D and E are geared together by a suitable
train of toothed wheels F, F. G. G are brackets carried by the machine frame.
9, 9 are rotary cutter shafts journalled in bearings carried by the brackets G, G.
g, gare other rotary shafts also journalled in bearings carried by the
brackets G, G. 92, 92 are toothed wheels which are carried by the shafts g, g
and which gear with toothed wheels g³, g³ carried by the shafts g¹, g' I, I'
are bevel wheels which are carried by the shafts g', gl, and which gear with
the bevel wheels e, e on the shaft E. H, H, are rotary cutters arranged in
groups on the shafts g, g.
It will be seen that each of the brackets G carries a central bearing for one
pair of shafts g and g which gear with one another, and also carries end
bearings for adjacent shafts g and g¹; the brackets at the ends of the apparatus
being modified as it is not necessary for them to carry all three bearings. I, I
are metal plates on the top plate 63 of the slide rest, arranged in position to
be grooved in accordance with my invention.
The shaft E may be driven from any suitable source of power through a
pulley shaft K and suitable gear wheels k, and e¹.
When the shaft E is driven, the shaft D is also driven through the gear
wheels F, F. The cutters H, H are caused to rotate through the intervention
of the gear wheels e, g, g³ and g². The rods C, C are also rotated by the
shaft D through the bevel gear d, c.
When thus rotated, the rods C, C cause the slide rest to travel diagonally
across the machine and draw the plates I, I under and in contact with the
cutters H, H as the latter rotate; grooves being thereby cut in the surface of
plates I, as indicated by the dot and dash lines in Figure 1.
By turning the screw 63 in the required direction, the blocks 61 61 are caused
to either approach or recede from one another and to thereby raise or lower the
top plate of the slide rest and thus adjust the plates I, I with respect to the
cutters H, H, so as to obtain grooves of the required depth.
After each cutting operation the slide rest is returned in readiness for the
grooving of a fresh surface.
°
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 in apparatus for cutting grooves in plates is:-
1. The sets of cutters mounted on the cutter shafts which are carried by
brackets substantially as described, for the purpose specified.
2. A slide rest provided with a top plate supported on adjustable wedges
substantially as and for the purpose specified.
3. Apparatus constructed arranged and operating substantially as described
with reference to the accompanying drawings for the purpose specified.
Dated this 24th day of April 1900
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.