Year: 1886

page_text: Date of Application, 22nd Oct., 1886.
Complete Left, 22nd July, 1887.
Complete Accepted, 13th Sept., 1887.
I WILLIAM ELLIS of 101 Crofton Road Peckham Surrey, Engineer do hereby
declare the nature of my said invention to be as follows :-
The improvements according to this invention relates to machines in which the log
is revolved against a long knife which cuts off a shaving the whole length of the log.
When used for rendering laths a rotary divider arranged before the edge of knife
scores or makes longitudinal incisions in the log so that the shaving when cut off is
in laths.
The knife is carried in suitable holders made to travel in a curved slot formed at
each side of frame of machine, as the knife holders move down the curved slots the
edge of the knife takes the radial motion of the curve which is arranged so that
the cutting edge is held for the best cutting results from start to finish of cutting up
a log. The knife holders are moved in the two curved slots by set screws passing
through a pivotted block arranged to move in a slide to compensate for the curve of
The
the slot. The set screws are revolved by gearing preferably a wheel and worm.
shaft which carries the latter is revolved by cone pulleys and band to enable a
variable speed to be given to the worm. The alteration of the position of the band
for this purpose I propose to effect by means of a set screw suitably revolved carrying
the fork to move the band. The knife is steadied while cutting by a roller above edge
resting against log and carried in knife holders. An arrangement of travelling
bands is provided for sorting the length of the laths as they fall off the log. This
consists of tiers of bands the upper set being set the widest apart catch only the
longest laths, the next the next shorter and the bottom, the shortest.
A means for counting the laths may consist of a receptacle arranged for the
travelling bands to carry the laths into which when full holds a certain number and
is then turned over by an attendant to deliver the measure of laths on to a wire
for bundling.
Dated this and days of Antahan 1986
FREDERIC PRINCE,
Agent for Applicant.

page_text: Improvements in Machines for Rendering Laths and Cutting
Veneers.
I WILLIAM ELLIS of 101 Crofton Road Peckham, Surrey, Engineer, do hereby
declare the nature of my said 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 is connected with that class of machine in which the log is revolved
against a long knife cutting off a shaving the whole length of the log. When used
for rendering laths a rotary divider arranged before the edge of the knife is pressed
upon the log making longitudinal incisions in it the width and thickness of a lath, so
that the shaving when cut off is in laths.
The knife is carried by a firm holder made to slightly turn in its travel by the ends
being connected to a sliding block moving in a curved slot formed at each end of
frame of machine.
The sliding blocks are moved in the two curved slots by screws passing through a
projection pivotted to a slide working on the block, to compensate for the curve of the
slot. As the sliding blocks move down or along the curved slot the edge of the knife
takes the radial motion of the curve, so that the edge is held for the best cutting
results from start to finish in cutting up a log. In the old form of machines the
knife moved in a straight line, and if the edge of the knife was set right at the
beginning of cutting when the log was large the position of the edge was all wrong
when the log was reduced to a small diameter, and instead of cutting clean would
half cut and half tear the shaving off rendering it useless either for veneers or laths.
To enable iny invention to be properly understood I will now proceed to describe
the same with aid of the accompanying drawings.
Figure 1 partial plan view of machine.
Figure 2 end view through inside machine.
Figure 3 partial view at line a, b figure 2.
Figures 4 and 5 enlarged views of parts embodied in proceeding figures.
A, represents the frame of machine A' the rotary divider, B, the log C, the long
knife secured by screws D to the planed face of the knife holder E, which as well as
the knife extends the whole length of the log, and serves to support the knife and keep
it rigid. The knife (, is raised or lowered on E, by screws E, after first loosening
screws D. The backing of knife is made with slots for the screws D, to admit of
adjustment by screws E¹. On tightening up the screws D the knife is drawn very
firm against E, which keeps it much steadier when in action than in the old plan
where there was no holder for the knife to lay against. The back of knife is further
secured by laying in the sockets or shoes E2 formed on E. The curved slot or
guide F, is formed in the frame at each end; a sliding block G, travels in these
slots F, and the knife holder E, being firmly connected to block G, by screws G', the
knife is obliged when moving to take the radial motion imparted to the sliding
blocks G, by the curve F, so that if the cutting edge is set right for cutting when the
log is largest it will still be right when the log is reduced as small as possible.

page_text: The knife holder is held in G by ends H; the ends H, being round allows' the
knife C to be properly adjusted in the first instance and when this is done firmly
secured by the screw bolts G'. These screws pass through slots G³ in the ends of E
to permit of the adjustment.
The movement of the sliding blocks G, and consequently the knife and knife holder
attached to them is effected by means of screws 1, revolved by worms_gearing with
wheels J, or other known form of gearing suitable for the purpose. The screws I
work through blocks K, held by pivot L', in a slide L, attached to block G. The
pivot L¹ is retained in L, by set screw L³, and grove near bottom of pivot (see
figure 4) compensation is thus provide for the different motions due to the straight
screw I, and curve F.
A roller P, connected to holder E extends across the machine above knife and bears
against the log to further steady the knife while cutting. One long roller is found to
act better than several short ones usual employed.
Motion is imparted to the screws I, to move knife holder in the following manner.
A belt R, drives the conical pulley S, a belt S¹, conveying motion to the second
conical pulley T, the smaller end of which is set opposite the larger end of S.
The pulley T, is secured to a shaft V which by the worms W, impart motion to the
worm wheels J, and screws I which move the blocks G, carrying knife holder as has
been explained.
The clutch Venables the pulley T, to be disconnected from shaft V, if desired. A
moving piece X, fitted with prongs X' enables the belt S¹, to be moved as required
for increasing or decreasing the speed at which the shaft V, is desired to turn to work
the wheels J, and screws I. This movement may be effected by hand wheel Z. This
wheel may be graduated and have a pointer Z¹, to show the exact position of belt S³,
on pulleys.
The piece X is attached to a sliding nut X2, moving on guide X³ by means of
under screw Y.
A continuous movement to the belt S¹ can be given by the mitre wheels being
turned by gut and pulleys Z2 and Z³ operating under screw Y attached to one of the
mitre wheels.
M, N, O, are three tiers of endless bands for sorting the laths in lengths as they
are cut off and to carry them away from the machine, a common arrangement for
this purpose.
Having now 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 is,
1. In machines for cutting veneers the combination with the knife C of the knife
holder E, curved slots F, sliding blocks G, screws I, suitably turned, nut K,
compensating arrangement L, L', and long roller P, as and for the purposes stated.
2. In machines for rendering laths, the combination of the rotary divider A¹,
knife C, knife holder E, curved slots F, sliding blocks G, screws I, suitably turned,
nut K, compensating arrangement L, L', and long roller P, as and for the purposes
stated.
3. In machines for the purposes described, the combination of the curved slots F,
sliding blocks G, screws I, suitably turned, nut K, and compensating arrangement L, L',
as and for the purposes stated.
Dated this 22nd day of July 1887.
FREDERIC PRINCE,
1, Quality Court, Chancery Lane, W.C.,
Agent for Applicant.