Improvements in or connected with Band Saws.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in or connected with Band Saws.
SAMUEL GREEN 12 Cleveland Terrace Willenhall Road Wolverhampton
Engineer do hereby declare the nature of this invention to be as follows :-
This invention relates to improvements in connection with antifriction.
arrangements for band saws. For this purpose I attach an arm to the machine,
adapted for either vertical or horizontal ajjustment to the saw. Upon the end of
the arm I attach an antifrictional arrangement of ball bearings in which revolves
an axle, and to which is connected a disc of hardened steel, both of which revolve
by the motion of the saw. The disposition of the bearing is so arranged to
exclude all dust, and to give an equal distribution of the pressure on all the balls
in the bearing.
Dated this outh M... 1905
SAMUEL GREEN, of 12 Cleveland Terrace, Willenhall Road, Wolverhampton,
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 :-
This invention consists of improvements in or connected with band saws, my
object being to provide a convenient and durable anti-frictional guiding appliance
for the back edge of the saw when in motion.
In order that my invention, and the method of carrying the same into effect
may be the more readily understood, I append hereunto one sheet of explanatory
drawings to be hereinafter referred to. Figure 1 is a sectional elevation Figure 2
a plan, and Figure 3 a side elevation illustrating one convenient form of my
improved guide.
The same reference letters in the different views indicate the same parts.
To a suitable arm or bracket mounted in a convenient position upon the band
saw machine, and arranged for vertical and horizontal adjustment, I attach the clip
or cover A, which is slit at A', as illustrated at Figure 2, the adjacent lugs or
projections being connected by the screw stud B. Through the interior of the clip
I cut a screw thread for the reception of the externally screwed cone cups C C¹,
which are bored out to admit the bush D, and for the reception of the bearing
balls E, the complete ball race being formed partly by the cone cups and partly by
a groove cut in the bush D as illustrated at Figure 1. The bush D is bored out
for the reception of the steel axle or spindle F, which has a hardened disc F',
formed or attached at one end, the face of which is adjacent to the back edge of
the saw when the complete guide is adjusted to its working position. The opposite
end F2 of the spindle is reduced in diameter, and has a screw thread cut upon it for
the reception of the nut G by means of which the spindle F and bush D are

page_text: clamped together, and thus move as one piece, being caused to revolve upon the
ball bearing by the contact of the face of the disc F¹ with the moving saw.
I preferably fix the cup C within the clip A by means of a small stud c', and
adjust the bearings as required by turning the cup C in either direction as
required preferably by means of a small bar or tool, which I place within the
hole c.
When the cup C is adjusted it is secured in position by tightening the
screw B, thus clamping A tightly around the cup.
I do not limit myself to the precise form of the ball bearings herein before
described and as illustrated in the accompanying drawings, but modify the method
of mounting the axle upon such bearings to suit particular requirements.
Having now particularly described 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 is.―
1. The improved method of guiding a band saw by means of a disc formed with
or attached to an axle mounted upon ball bearings substantially as described.
2. The construction of a band saw guiding appliance consisting of an axle
having a disc at one end and a nut at the opposite end for clamping to a bush
mounted upon bearing balls, the said balls working within a race formed between
the exterior of the bush and the interior cone cups secured within a clip or cover,
substantially as hereinbefore described and as illustrated in the accompanying
drawings.
3. An improved guiding appliance for a band saw constructed and arranged
substantially as described.
MARKS & CLERK,
18 Southampton Buildings, London, W.C., and
13 Temple Street, Birmingham, Agents for the Applicant.