New or Improved Machinery or Apparatus for Cutting into Lengths Bars, Rods, Tubes, and the like.
Year: 1894

page_text: Date of Application, 21st Mar., 1894-Accepted, 21st Apr., 1894
COMPLETE SPECIFICATION.
New or Improved Machinery or Apparatus for Cutting into Lengths
Bars, Rods, Tubes, and the like.
I SUMMERS HUNTER of The Villa, Wallsend-on-Tyne, 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:-
The object of the present invention is to provide machinery or apparatus whereby
a number of bars, rods, or tubes, of any section, may be cut to pre-determined
lengths without necessitating the stoppage of the machine during the operation.
I effect the aforesaid object by combining with a suitable cutter means whereby
the bars to be cut are continuously fed thereto, each bar being presented to the
cutter, by the feed device, in such a position that the desired pre-determined length
will be cut off.
Machinery or apparatus constructed in accordance with my invention as
hereinafter described will be found especially useful for cutting boiler stays or
stay bars.
I will now fully describe my invention and the manner of performing the same
having reference to the accompanying drawings in which similar letters refer to
corresponding parts in the both figures:
1
Figure 1 is a plan of a machine constructed in accordance with my invention.
Figure 2 is a side elevation thereof.
A is the cutter consisting of a circular saw mounted on the shaft B carried by
convenient bearings C. Slow and powerful motion is imparted to the saw A by the
worm D which engages with the worm wheel E on the said shaft B. F F are fast
and loose pulleys on the shaft of worm D. G G are feed discs or chucks mounted
on and revolving with the shaft H to which slow and powerful motion is imparted
by the worm I on the shaft B which gears with the worm wheel 1' on the shaft I*
at the opposite end of which is a worm I³ which engages with the worm wheel I* on
said shaft H. JJ are holes extending transversely through the sides of the feed
discs or chucks G G', (the holes in one disc corresponding with those in the other)
through these holes J J the rods or bars K to be cut up are passed, being securely
held in position therein by set bolts or grips L. I prefer to so arrange the holes J J
in two concentric circles that the moment one bar is cut through the next succeeding
bar will come into contact with the saw as shewn clearly in Figure 2. As the feed
chucks G G rotate, the rods or bars K carried thereby are successively brought
into contact with the saw A and severed thereby. The length of the portions
severed from the bars K is of course determined by the amount the said bars project
beyond the feed disc G, and in order to facilitate the measurement of the lengths to
be cut off (when a number of similar lengths are required) I provide a graduated
plate M having a sliding stop or abutment N mounted thereon and adjustable by
the screws O. The stop N being set to the proper position the bars K are pushed
through the feed discs until they come into contact therewith, thus perfect
similarity of length in the severed portious is ensured. P indicates ordinary
friction gear whereby the driving gear of the feed discs or chucks G G¹ may be
thrown into or out of action.
If desired two or more cutters may be mounted on the same shaft thus permitting
two or more lengths to be cut simultaneously from the same bar or rod. It will of
course be understood that an additional feed disc or chuck will be mounted on
shaft H for each additional cutter.

page_text: In conclusion I would observe that I do not confine or limit myself to the precise
details of construction described with reference to and illustrated in the drawings,
as the same might obviously be somewhat varied or modified without in any way
departing from my invention; for instance I may employ as a cutter, in substitution
for a circular saw, a band saw or a reciprocating saw, also one feed disc only might
be employed in some cases, my object in using more than one feed disc placed some
distance apart on the same shaft being merely to afford a better support to long
rods or bars.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. Machinery or apparatus for the purpose set forth wherein the bars or rods to
be cut up are fed continuously to the cutter by a revolving feed disc or chuck
constructed and arranged substantially as described.
2. In combination with a cutter A the revolving feed discs or chucks G G¹
provided with holes J for the reception of the bars or rods to be cut and grips for
retaining the same in position, said holes J being so arranged that the moment one
bar is severed the succeeding bar will come into contact with the cutter, substan-
tially as and for the purpose described and illustrated.
3. In combination, the cutter A, the feed discs or chucks G G', and the graduated
plate and stop, substantially as and for the purpose described and illustrated.
4. The general construction, arrangement, and combination of parts constituting
new or improved machinery or apparatus for the purpose set forth, substantially as
described and illustrated.
Dated this 21st day of March 1894.
E. P. ALEXANDER & SON,
Fels. Chartered Inst. Patent Agents,
19, Southampton Buildings, Chancery Lane, London, W.C.,
For the Applicant.