Improvements in or relating to Feed Benches for Saws.
Year: 1894

page_text: Date of Application, 22nd Dec., 1894-Accepted, 2nd Feb., 1895
COMPLETE SPECIFICATION.
Improvements in or relating to Feed Benches for Saws.
I, WILLIAM BRIGHTON of 218 Southtown, Great Yarmouth, in the County of
Norfolk, Yacht and Boat Builder, 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 :—
My invention relates to feed benches for saws.
Hitherto it has been customary when sawing curved ou irregular timber or other
crooked material to guide such material by hand in a manner extremely dangerous
to the operator and with unsatisfactory results owing to unsteadiness of the piece
during the operation Or the piece has been held and fed mechanically but only
by a simple lincar movement so that the various pails have been cut at different
and inappropriate points in the path of the cutting edge of the saw with injurious
esults to the saw and the work. The object of my invention is to construct
apparatus which will obviate these dangers and defects by feeding curved or
crooked material to a saw in such a manner that the cut despite the curves or
crooks can be effected at a chosen and appropriate point in the path of the cutting
edge.
According to my invention I construct a feed bench with a traversing carriage
having thereon any chuck or other holding-device for the material capable of being
adjusted to alter the position of the material relatively to the saw during the
operation of sawing so that such operation is effected at the desued part of the path
of the cutting edge and of the material. The traversing cartage of such a feed
bench carries for instance a movable headstock or support adjustable thereon and
a face plate or chuck or other holding device carried by and movable relatively to
the headstock so that a curved or irregular timber can be secured minovable upon
the face-plate and moved therewith during the cut to present its various parts to the
saw with ease and precision at the proper point in the path of the cutting edge.
In order that my invention may be clearly understood 1 will now proceed to
describe the same with reference merely by way of example to the accompanying
drawings, wherein
Figure 1 is an elevation of one form of feed-bench constructed according to my
invention, and
Figure 2 is a view at right angles to Figme 1 partly in section on the line of
travel of the headstock.
Like reference-letters indicate like parts throughout the drawings.
A are rails supported upon any suitable foundation. B is a carriage provided
with wheels B' to enable it to be easily moved upon the rails A. C is a headstock
airanged to slide in the undercut groove B2 of the carriage B a direction
transverse to the rails A. Co is a nut fixed to the headstock. D is a screw
journalled at its ends in hearings B³ on the carriage; it engages with the nut Co
and has a squared head D' to receive a key by which it is operated to move the
headstock in the groove B'.
E is a face-plate or chuck upon which the material to be cut 18 clamped by
suitable dogs or otherwise secured. A crooked log F 18 shown fixed in place
thereon by way of example.
El is a cylindrical pivot formed upon the rear of the face plate and journalled in
a bearing C in the headstock. E is a worn-wheel fixed on one end of the pivot.
G is a worm turning in bearings C³ on the headstock and engaging with the worm

page_text: wheel E; G is a handle whereby the worm G can be operated to turn the
worm-wheel E and face-plate E in the bearing C. II is a portion of a band saw
shown in order to indicate approximately the position of the cutting edge relatively
to the traversing carriage.
By moving the carriage B on the rails A the log F can be moved up to and
past the saw. The headstock C can be adjusted and held in position in the
groove B by the sciew D in accordance with the desired position of the cut
considered relatively to the cross-section of the log and while the cut is being made
the face-plate can be turned in its own plane and set or held by the worm gear E' G
so that the part of the log at which at any moment the cut is taking place can be
maintamed at the chosen point in the path of the cutting edge of the saw, that 18
to say, where a band saw is used for instance, the cut can be effected at a point in
proximity to that at which the band saw traverses guides or supports which prevent
it from springing or running "out of truth.” Whereas a similar bent o curved
log run through the saw in a horizontal linear path and not adjustable in the vertical
plane in which it lies would in parts be cut at points in the path of the saw situate
at such distances from the support that the saw would spring and would not
cut truly.
"
My invention is applicable to all classes of saws and the adjustments thereon
may be effected by hand or other power as may be desirable.
Having now particularly descubed and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim 18.-
1. Feeding to a saw curved on crooked material and simultaneously adjusting it
mechanically in such a manner that the different parts sawn are all presented at
one previously-chosen part of the path of the cutting teeth or edge
2. Maintaining the position of the cut at one part in the path of the cutting
teeth or edge throughout the operation of sawing a piece of curved or crooked
material by secuing the material to an adjustable cairiage and turning it at the
bends or angles substantially as and for the purpose described.
3. In a feed bench for a saw the combination with a traversing carriage such
as B of a movable support such as C adjustable thereon and a face-plate or holding
device carried by and movable relatively to the support substantially as and for the
purposes described.
4. In a feed bench for a saw the combination with a traversing carriago B of a
movable headstock C thercon and a face-plate or chuck E or holding device carried
by and adapted to tuin on the headstock substantially as and for the purposes
described.
5. In a feed bench for a san the combination with a traversing carriage B of a
movable headstock C thereou a face-plate or chuck E carried by and adapted to
turn on the headstock and screw gear D E G or other mechanism for moving 01
for moving and setting the face-plate or chuck relatively to the headstock and the
headstock relatively to the traveising carriage substantially as and for the purposes
described.
6. The combination and arrangement of parts constituting a complete teed bench
for a
saw substantially as and for the purpose described with ieference to the
accompanying drawings.
Dated this 13th day of December 1894.
WILLIAM BRIGHTON.
Boult & Wade,
Agents for the Applicant.