Improvements in Machines for Sawing Cold Steel, Iron, and other Metals.
Year: 1899

page_text: PRETIOAAL SPECIFICATION.
Improvements in Machines for Sawing Cold Steel, Iron, and
other Metals.
I, JOSEPIL HILL, of Saint George's Engineering Works, Woods Lane, in the
County Borough of Derby, Engineer, do hereby declare the nature of this inven-
tion to be as follows:
My invention is more particularly applicable to what are known as flush
side saws
used in sawing machines employed chiefly for sawing projections
off steel and other castings flush with the surfaces of said castings; it is however
of great value and applicable to all kinds of work to or for which a circular
cold saw is applicable. Great difficulty has been experienced hitherto in fixing
the saws to their spindles in such a manner as to prevent buckling or twisting
the saw and to ensure perfectly straight or true sawing. One of the best known
methods of fixing such saws to their spindles is that in which a disc is formed
solid with the saw spindle and the saw is rivetted to a washer or plate of
corresponding size to the disc on the spindle, a projection on the latter fitting
in a central hole in the saw when the latter is bolted to the solid disc of the
spindle with counter sunk headed bolts on the flush side of the saw; great
difficulty is however experienced in bedding the plate or washer up to the
face of the saw, to ensure a perfectly vertical setting of the saw blade and con-
sequently perfectly straight or true sawing, this difficulty is chiefly caused by
the saw blade being concave or convex where the washer is secured, this being
a result of the hammering to which the saw is subjected in the course of manu-
facture.
My present invention is designed to obviate this difficulty or objection and
in carrying the same into effect I use a packing of the kind hereinafter described
between the plate or washer, which I will now call the packing plate, and the
Baw.
As the saws generally run in oil and soap suds or other lubricant I employ
a packing of a permanent or imperishable nature such as metal gauze sheeting,
thin sheets of metal of different kinds or thin sheets of metal in combination
with such metal gauze sheeting or I may employ woodite or other imperishable
or practically imperishable substance between the two which will give with
the very slight variations in the faces of the saw and packing plate.
Doted this 20th
TI
1000
W. SWINDELL,
Agent for the Applicant.

page_text: Improvements in Machines for Sawing Cold Steel, Iron, and
other Metals.
•
JOSEPH HILL, of Saint George's Engineering Works, Woods Lane, in the
County Borough of Derby, Engineer, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement : -
--
My invention is more particularly applicable to what are known as flush
side saws, used in sawing machines, employed chiefly for sawing projections
off steel, and other castings; flush with the surface of the said castings; it is how-
ever of great value, and is applicable to all kinds of work to, or for which a circular
saw is applicable. Great difficulty has been experienced hitherto, in fixing
the saws to their spindles, in such a manner as to prevent buckling, or twisting,
the saw and to ensure perfectly straight or true sawing. One of the best known
methods of fixing such saws to their spindles is that, in which a disc is formed
solid with the saw spindle, and the saw is rivitted to a washer, or plate, of
corresponding size to the disc on the spindle, a projection on the latter fitting
in a central hole in the saw when the latter is bolted to the solid disc of the
spindle, with countersunk headed bolts, on the flush side of the saw; great
difficulty is however experienced in bedding the plate or washer A up to the
face of the saw, to ensure a perfectly vertical setting of the saw blade and con-
sequently perfectly straight or true sawing, this difficulty is chiefly caused by
the saw blade, being concave, or convex, where the washer A is secured, this being
a result of the hammering to which the saw, is subjected in the course of manu-
facture.
My present invention is designed to obviate this difficulty, or objection, and
in carrying the same into effect, I use a packing B, of the kind hereinafter
discribed, between the plate or washer A, which I will now call the packing
plate A, and the saw. As the saws generally run in oil & soap suds, or other
lubricant, I employ a packing B of a permanent or imperishable nature, such as
metal gauze sheating, thin sheets of metal, of different kinds, or thin sheets of
metal, in combination with such metal gauze sheeting, or I may employ woodite,
or other imperishable, or practically imperishable substance, between the two,
whch will give with the very slight variations in the faces of the saw, and the
packing plate A.
Having now particularly described and ascertained the nature of my said
invention, & in what manner the same is to be performed, I declare that what
I claim is―
1st. An imperishable packing, or substance used between the packing plate
and the saw.
1000