Improvements in and relating to Stave Crozing and Chamfering Machines.
Year: 1891

page_text: Date of Application, 23rd June, 1891-Accepted, 25th July, 1891
COMPLETE SPECIFICATION.
Improvements in and relating to Stave Crozing and Chamfering
Machines.
I, JAMES PLEUKHARP, a Citizen of the United States of America, residing at
No. 80 West Third Avenue, in the City of Columbus, County of Franklin, and
State of Ohio, one of the United States of America, Manufacturer, 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:-
This invention relates to crozing and chamfering machines.
The purpose of the invention is to provide a machine which will cut the staves to
a uniform length, and chamfer and croze them at one and the same operation, and
which will automatically and positively feed the staves to the cutting, chamfering
and crozing devices, and automatically carry off the completed staves.
The improvement consists in the peculiar construction and novel combination of
the parts which will be hereinafter more fully described and claimed, and which
are shown in the annexed drawings, in which,
Figure 1 is a side view, and
Figure 2 a rear view of a machine embodying my invention.
Figure 3 is a central section through the chamfering tool parallel with and
looking towards the saw.
Figure 4 is a central section through the crozing tool parallel with and looking
away from the saw.
The frame, M, is of suitable construction and adaptation to receive and support
the operating parts of the machine and no novelty is claimed therefor.
The feeding drum, D, D, is mounted on shaft, d, which is journaled at its ends
on the frame, and is provided at intervals around its periphery with projections, f,
which engage with and carry the stock forward to the cutter heads. The drum
is composed preferably of two discs which are located the proper distance apart
on the shaft, d, and is a polygon, the stock being placed on the flat sides. The
cutting devices, one being provided to operate on each end of the stock, comprise
mandrel, A, which is journaled on the frame, M, cutter head, C, at the inner end
of the mandrel, and band pulley, B, around which the band, b, passes to transmit
motion from a suitable motive power to the said mandrel. The cutter head, C,
is composed of three separate cutters, each being designed for a specific purpose,
the saw, N, which cuts the stock the required length, chamfer cutter, O, which
bevels the end of the stock, and the crozing tool, P, which makes the groove
in the stock at the base of the chamfer. These three cutters may be integral,
or formed separately and secured on the mandrel so as to revolve therewith.
The feeding drum, D, D, is arranged wholly between the planes of the cutter
heads, C, C, and the ends of the stock project beyond the ends of the drum to be
operated on by the said cutter heads.
The resistance roller, G, G, is arranged directly above the feeding drum and is
designed to hold the stock on the drum against the action of the cutter heads, and
is elastic being made of rubber, to yield to a slight variation in the thickness of the
stock. This roller is composed of shaft, g, and rubber discs, G, G, mounted on the
shaft near each end thereof.
The counter shaft, H, journaled on the frame is provided on its outer end with
band wheel, h, which is driven by belt, J, and with pulleys, I, I, near each end
thereof. Belts, K, K, pass around pulleys, I, I, and corresponding pulleys, E, E,
on shaft, d, and serve to transmit motion from shaft, H, to drum, D, D, and to
carry off the completed stave.

page_text: In practice the machine is set in operation in the manner hereinbefore set forth
and the stock is fed by hand or otherwise to the drum, D, D, which carries it
forward to the cutters, C, C, which cut off any projecting ends, chamfer and croze
the stock. The completed stave drops onto the belts, K, K; which carry it to the
end of the machine see $', in Figure 1..
Having now particularly described and ascertained the nature of my said liñven-
tion and in what manner the same is to be performed I declare that what 1
claim. is.
In a machine for crozing and chamfering staves, the combination of the shaft d,
the polygonal discs D D mounted on the shaft and having, projections at regular
intervals about their peripheries, the pulleys E secured on the shaft d near the
inner sides of the discs D, the independently operated mandrels A provided with
cutting, crozing and chamfering tools which are exterior to the outer ends of
the discs D, the shaft y having the yielding resistance discs G directly above the
cutting tools and the discs D, the counter shaft H having pulleys II and the
belts KK passing over the pulleys I and E and adapted to transmit motion from
the said shaft H to the shaft d'and serve as a conveyor to carry the completed
staves from the discs D, substantially as set forth.
Dated this 23rd day of June. 1891.
JENSEN &:SON,
77, Chancery Lane, London, W.C., Patent. Agents.