Improvements in and relating to Machines for Sawing and Cutting Metals, Stone, and other substances.
Year: 1890

page_text: Date of Application, 12th Dec., 1890
Complete Specification Left, 11th Sept., 1891-Accepted, 24th Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in and relating to Machines for Sawing and Cutting
Metals, Stone, and other substances.
I, GEORGE RYDER, of Turner Bridge Works, Bolton, in the County of
Lancaster, Roller and Tool Maker, do hereby declare the nature of this invention
to be as follows:-
My invention relates to machines for sawing and cutting metals stone and other
substances and to apparatus for sharpening .the special cutting tools employed in
machines employed for such purposes.
In applying my improvements to such a machine I drive the cutting tool by, a.
worm and worm wheel the latter being secured close to the revolving. cutter on the..
same or a separate shaft or spindle; or I may employ a pair of worms and worm
wheels one worm wheel being fitted on each side of and near to the revolving cutter,
by this means I overcome torsional strain and hold the cutter more rigidly up to
its work..
When my improved spiral cutting tool as described in the Specification to my
Application No. 5042 dated April 1st 1890 is employed I propose to fit on the
machine a special grinding or sharpening apparatus in combination with a suitable.
dividing appliance fitted on the saw mandrel or machine spindle and a movable
bracket in a slide attached to the machine and actuated by a screw on which is
mounted a dividing wheel the paits being. so arranged that an emery or other
grinding wheel fitted on the bracket can be fed by hand or otherwise to grind, each
tooth of the spiral cutter to agree exactly with the spiral periphery of the cutter.
Dated this 11th day of December 1890:
H. B. BARLOW;
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Machines for Sawing and Cutting
Metals, Stone, and other substances.
I, GEORGE RYDER, of Turner Bridge Works, Bolton, in the County of
Lancaster, Roller and Tool Maker, 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 machines for sawing and cutting metals stone and other
substances and to apparatus for sharpening the special cutting tools employed in
machines employed for such purposes.
In applying my improvements to such a machine I drive the cutting tool by a.
worm and worm wheel the latter being secured close to the revolving cutter on the
same or a separate shaft or spindle; or I may employ a pair of worms and 'worm.
wheels one worm wheel being fitted on each side of and near to the revolving cutter,
by this means I overcome torsional strain and hold the cutter more rigidly up to
its work.
When my improved spiral cutting tool as described in the Specification to my
Application No. 5042 dated April 1st 1890 is employed, I propose to fit on the
machine a special grinding or sharpening apparatus in combination with a suitable
dividing appliance fitted on the saw. mandrel or machine spindle and a movable.
ועונ..מ

page_text: bracket in a slide attached to the machine and actuated by a screw on which is
mounted a dividing wheel the parts being so arranged than an emery or other
grinding wheel fitted on the bracket can be fed by hand or otherwise to grind
cach tooth of the spiral cutter to agree exactly with the spiral periphery of the
cutter.
*
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying five sheets of drawings reference being had
to the figures and letters marked thereon.
:
Figure 1 is a side sectional elevation, and
Fig. 2 a plan of my improved machine for sawing and cutting metal stone and
other substances.
Fig. 3 is a front view in section taken on the line A B, Fig. 2, but showing the
saw or cutting tool which is not shown in Fig. 2.
→
Figs. 4 and 5 are side view and front view respectively of part of the special
apparatus, which I employ according to my present invention, applied to the
machinė represented in Figs. 1, 2 and 3, to grind or sharpen a special cutting tool
made according to my aforesaid Patent.
In Figs. 1, 2 and 3,-a is the frame of the machine which carries the pedestals for
the machine spindle or driving shaft b, on which are fitted the pulleys b¹, b, the
former of which is loose, and the latter is keyed on the boss c¹ of a spur pinion c,
loose on the shaft b; the pinion c gears into a spur wheel d on the boss of which is
a pinion d which gears into a wheel e keyed on the shaft band by which the shaft b
is turned when the driving belt is on the fast pulley 63. The gears d, d' are mounted
upon a stud or short shaft f.
A worm 63 keyed on the shaft 6 gears into a worm wheel g which is mounted upon
the spiral cutter or saw spindle h, the latter rotating in bearings on the frame a;
one side of the worm wheel g forms a flange g¹ to which the cutting tool i is secured
by bolts, that pass also through a loose washer k. The cutter i dips into a
reservoir a¹ which can be filled with soap and water or other liquid to keep it cool
and lubricate it when employed to saw a metal or other bar at 1 Fig. 1, the bar
being clamped on a V block m, fixed on a table n fitted in slideways a², on the frame
of the machine.
The table n carries the plate o pivoted on a stud of and the clamping lever o³
with its eccentric o³ for holding the metal or hard substance to be cut; a screw p
turned by a handwheel p¹ is employed to traverse the table n and substance 1.
In Figs. 4 and 5 the special grinding or sharpening apparatus for my patented
spiral saw or cutting tool is shown applied to the improved machine illustrated by
Figs. 1 to 3.
This apparatus consists of a finger 9 fitted on the frame a and acting as an
indicator for the wheel e which is divided or graduated and fixed on the machine
spindle b; by means of this dividing appliance the cutting tool i can be turned in
either direction, say one tooth at a time.
The grinding wheels is supported in a sliding bracket t sliding on a bracket t¹
capable of being raised and lowered by a screw u actuated by a handwheel v, the
latter being graduated so that the position of the grinding wheel can be adjusted to
compensate for the varying diameter of the spiral cutting tool i.
The grinding wheel's and its appurtenances are carried upon pillars w secured to
the frame a; and are always ready for use.
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. In a machine for sawing and cutting metals stone and other hard substances I
claim driving the saw or cutting tool by worm gearing arranged substantially in
the manner and for the purposes herein set forth.

page_text: 2. The combination with a spiral cutting tool of the type specified, of the movable
and adjustable grinding appliance arranged and operating substantially in the
manner and for the purposes herein set forth.
Dated this 10th day of September 1891.
H. B. BARLOW,
17, St. Ann's Square, Manchester Agent for Applicant.