Improvements in Band Saw Machines.
Year: 1889

page_text: Date of Application, 29th Mar., 1889
Complete Specification Left, 30th Dec., 1889-Accepted, 1st Feb., 1890
PROVISIONAL SPECIFICATION.
Improvements in Band Saw Machines.
I WILLIAM HEATHMAN, of Crediton, Devon, Smith, do hereby declare the nature
of this invention to be as follows:-
This Invention relates to improvements in sawing machinery of the class known as
band saws, the object being to render such saws capable of being worked by manual
labour as well as by steam power.
For this purpose I mount the lower saw pulley on a longer shaft than usual and to
each end of this shaft I fix a handle, so that one or two persons can work the saw,
according to the power required.
If still further power is required I fix a handle to the upper saw pulley and provide
a table or platform for a third person to stand upon. The saw is provided with the
usual tightening and guiding devices and a guard for protecting the body of the
operator.
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COMPLETE SPECIFICATION.
Improvements in Band Saw Machines.
I WILLIAM HEATHMAN, of Crediton, Devon, Smith, do hereby declare tho 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 sawing machinery of the class known as band saws the
object being to render such saws capable of being worked by manual labour as well as
by steam power. For this purpose I mount the lower saw pulley on a longer shaft
than usual, and to each end of this shaft I fix a handle so that one or two persons can
work the saw according to the power required.
If still further power is required I fix a handle to the upper saw pulley and provide
a table or platform for a third person to stand upon. The saw is provided with the
usual tightening and guiding devices and a guard for protecting the body of the
operator.
The Invention will be fully understood by reference to the accompanying drawing
which represents a side elevation of a saw constructed as above described.
A. is the framework to which is fixed the saw table B, and a table C for a person to
stand upon. D is the principal driving shaft which carries the lower saw pulley E, a
belt pulley F and two handles G. The upper saw pulley H is also provided with
a handle H and can be raised or lowered so as to alter the tension of the saw, by
means of the winch screw J and sprink K.
An adjustable guide L is fixed to the arm A¹ of the framework, to guide the saw
in its working course.
When working the lower handles G, the operator or operators, stand in a pit M,
dug in the ground, whilst another person can stand on the table C and turn the
handle H. A guard N may be fixed to the framework to protect the operator
nearest to the cutting edge of the saw.
By means of my invention heavier work can be performed by manual labour than
it has heretofore been possible to accomplish, and this will be found of great advantage
where steam power is not available.

page_text: 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:
The improvements in sawing machinery, substantially as and for the purpose described
and illustrated in the accompanying Drawing.
Dated this 28th day of December 1889.
HUGHES & SON,
5, Chancery Lane, London, W.C., Agents for the Applicant.