Improvements in Sawing-machines.
Year: 1891

page_text: Date of Application, 31st July, 1891
Complete Specification Left, 13th Feb., 1892-Accepted, 19th Mar. 18º2
PROVISIONAL SPECIFICATION.
Improvements in Sawing-machines.
A communication from abroad by JOHN HENRY RAYMOND and LUCY ANN BLISS,
both of Syracuse, in the County of Onondaga, and State of New York, United
States of America, Inventors.
I, GEORGE CECIL DYMOND, M. Inst. M.E., of the Agency for Foreign Patent
Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both in the
County of Lancaster, and 323, High Holborn, in the County of Middlesex, Patent
Agent, do hereby declare the nature of this invention to be as follows:-
The invention relates to that class or species of machines designed for the
sawing of boards or other lumber into desired lengths, and which saw and its
supporting carriage is adapted to travel forward and rearward upon a trackway.
The object of the invention is to produce a sawing machine of the class described,
that is of comparatively simple construction, and durable and effective, and allowing
of ready and correct adjustment of its operative parts, which from its formation will
permit of ready and easy travel of the saw carriage and its circular saw forwardly
with but little, if any, exertion upon the part of the operator, no matter how thick
or hard the board may be upon which the saw is to operate, which carriage and
saw will automatically travel rearwardly such distance as may be desired, assuming
its normal position and ready for forward movement, as desired, and in certain
improved details of construction, imparting increased effectiveness, ease of operation,
and strength and durability to the machine.
The invention consists in the novel features of construction, operation, adaptation,
and combination of parts hereinafter described, and shown in the accompanying
drawings, in which,
Figure 1 is a side elevation of an improved sawing machine with portions of the
frame, etcetera, shown broken away for better illustration.
Figure 2 a rear elevation of same, and
Figure 3 a top plan view of the base portion of the machine, taken upon line in
Figure 1.
Similar letters and figures of reference indicate corresponding parts throughout,
the several views.
1 is the stationary frame of the machine consisting of the rear vertical
standards A A, of requisite elevation, which are parallel and situated a suitable
distance apart from each other and leaving a passage way between them, front
vertical posts B B, parallel horizontal stringers C C, extending from the top of the
front posts to the rear standards, as shown, and constituting at their forward portion,
in combination with the attached slab D, the table E. At a suitable distance
directly underneath the stringers C C are rails or ways F F, disposed horizontally
and parallel to each other and extending from the posts B B to the standards A A
and conjointly forming the trackway G, and H H and J are tie pieces preferably
utilised to give additional stability and durability to the framework 1.
At the top of the rear standards A A of the frame, stationary hangers 22 are
secured, having adjustable pivotal boxes therein of ordinary construction in which
is mounted the transverse horizontal driving shaft 3, that is provided about midway
the parallel standards A A with a large drive pulley 4 and at its projecting end
with tight and loose pulleys a b.
Integrally with the hangers 22 (and secured to the adjacent standard) are oscil-
latory hangers 5 5, comprising respectively a stationary plate c, having an annular
flange at its upper portion and a companion plate d of similar construction, but
having its annular flanged portion of sufficiently greater circumference as to adapt
027

page_text: its annular flange to enclose or overlap the annular flange projecting laterally from
the immovable plate c, and whereby the plate d is adapted to rotate or oscillate.
Centrally of the annular flanged portions of the plated of the respective hangers 5
there is an opening for the passage of the driving shaft 3 of such contour as will
permit of the free rotation of the said shaft at all times. The hangers are provided
with the customary apertures for the insertion of oil or other lubricants.
P is a pendulum or pendulum frame pivotally hung in the passage way lying
between the adjacent standards A A of the frame and adapted to oscillate toward
and from the operator standing at front of the table E. This pendulum frame con-
sists of the vertical parallel bars e e, disposed a suitable distance apart and longi-
tudinally extending from the top of the standards A to within a short distance of
their base, the said bars e e being retained and braced in proper relative position
by cross pieces fi secured thereto transversely.
The aforedescribed pendulum P is oscillatorily suspended from the standards A A
by the attachment of its bars e e at their top portion to the respective flat pendent
portions of the oscillatory or rotary plates d of the oscillatory hangers 5 5.
At or near the bottom of the pendulum P, journalled in bearings upon the rear
face of the respective bars e e and standing between the same, is a horizontal
pulley 6, and slightly above the aforesaid pulley, but journalled in bearings upon
the forward face of the bars e e, there is a pulley 7, horizontally mounted between
the said bars and preferably of a size corresponding to that of the pulley 6.
R is the saw carriage constructed in the usual manner, provided with customary
boxes, arbor, and a circular saw 8, and mounted on rollers gg, adapted to longitu-
dinal travel upon the trackway G. This carriage is provided at its top with the
usual opening to permit of the free rotation of the pulley 9 on the saw arbor, and
h is a curvilinear handle secured to the aforesaid carriage, its free extremity pro-
jecting forwardly as shown.
The pendulum P is connected with the saw carriage by means of parallel
connecting bars i i, respectively disposed at the outer sides of the bars e é of the
pendulum and pivotally connected at their rear ends to the said bars e e at or about
their lower portion and pivotally connected at their forward ends to a side of the
saw carriage diametrically beneath the axis of the saw arbor, and usually to the
interior of the carriage frame as shown.
S is the driving belt, said endless belt passing around the drive pulley 4 down to
and around the pulley 7, thence to and around pulley 9 on saw arbor, thence around
the pulley 6, and thence to the starting point, hereinbefore stated.
The exact points of connection of the parallel connecting bars ii to the bars e e
of the pendulum frame is accurately determined by experimental tests, continued
until it is definitely settled that the location of the pivotal attachment of the con-
necting bars ii to the pendulum frame is such as to insure the belts being equally as
taut whatever may be the position of the saw carriage (and mounted pulley) upon
its trackway G, and thus obviating or avoiding undue tightness or slack of the
driving belt under every condition.
A few trials at the outset will demonstrate the correct pivotal connection requisite
for the satisfactory working of the parts.
L designates a horizontally disposed lever (or arm) projecting rearwardly
from the pendulum P and secured to one of the barse thereof at its upper portion,
and provided with a weight w, suitably perforated and adapted to slide thereon
and retained in position at any desired point of the lever by means of a set screws.
The object or function of this weighted lever is to regulate the thrust or travel of
the saw (and connected parts) rearward, the adjusting of the weight nearer to the
pendulum, increasing the stroke of the pendulum's oscillation or travel rearward
and conjointly the rearward travel of the carriage and its saw, while the adjusting
of the weight farther from the pendulum produces a contrary effect. Additionally,
the weight provided lever tends to a certain degree in assisting the forward propul-
sion of the saw carriage (and supported saw) when drawn forwardly along its
trackway by the arm of the operator pulling upon the operative handle of the

page_text: said carriage, thereby materially assisting the operator, the severe strain upon
the operator's muscles of his arm and body incident to the manipulation of
the commonly constructed form of machines being obviated and the progress
of the saw through a board or boards being of comparative ease. Moreover, there
being no upward straining or lifting of the saw carriage, as is more or less the
case with the common forms of machines, a direct and easy forward movement of
same is assured, for, as will readily be observed, the connection of the travelling
carriage with the pendulum is such as obviates a lifting strain upon the operator,
all that is entailed being a forward direct pull upon the carriage handle by the
operator, which forward movement of the carriage is assisted by the weighted
pendulum and its connection with the carriage. The automatic rearward movement
of the pendulum and its pivotally connected saw carriage may readily be adjusted
or gauged by the operator to the width of the board or other timber which it is
expedient the saw should clear after a cut or successive cuts merely by the proper
adjusting of the movable weight upon the lever connected to the pendulum.
Dated this 30th day of July 1891.
WM. P. THOMPSON & Co.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Sawing-machines.
A communication by JOHN HENRY RAYMOND and LUCY ANN BLISS, both of
Syracuse, in the County of Onondaga, and State of New York, United States
of America.
1, GEORGE CECIL DYMOND, M. Inst. M.E., of the Agency for Foreign Patent
Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both in the
County of Lancaster, and 323, High Holborn, in the County of Middlesex, Patent
Agent, 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:-
The invention relates to that class or species of machines designed for the
sawing of boards or other lumber into desired lengths, and which saw and its
supporting carriage are adapted to travel forward and rearward upon
trackway.
a
The object of the invention is to produce a sawing machine of the class
described, that is of comparatively simple construction, and durable and effective,
and allowing of ready and correct adjustment of its operative parts, which, from
its formation, will permit of ready and easy travel of the saw carriage and its
circular saw forwardly with but little, if any, exertion upon the part of the operator,
no matter how thick or hard the board may be upon which the saw is to operate,
which carriage and saw will automatically travel rearwardly such distance as may
be desired, assuming its normal position and ready for forward movement, as
desired, and in certain improved details of construction, imparting increased
effectiveness, ease of operation and strength and durability to the machine.
The invention consists in the novel features of construction, operation, adaptation
and combination of parts hereinafter described, and shown in the drawings filed
with the Provisional Specification, in which :-
Figure is a side elevation of the improved sawing machine with portions of the
frame, etcetera, shown broken away for better illustration.
Figure 2 is a rear elevation of same, and
Figure 3, a top plan view of the base portion of the machine, taken upon linear,
Figure 1.
Similar letters and figures of reference indicate corresponding parts throughout
the several views.

page_text: 1 is the stationary frame of the machine, consisting of the rear vertical
standards A A, of requisite elevation, which are parallel and situated a suitable
distance apart from each other and leaving a passage way between them, front
vertical posts B B, parallel horizontal stringers C C, extending from the top of
the front posts to the rear standards, as shown, and constituting, at their forward
portion, in combination with the attached slab D, the table E. At a suitable
distance directly underneath the stringers C C are rails or ways F F, disposed
horizontally and parallel to each other and extending from the posts B B to the
standards A A and conjointly forming the trackway G, and H H and J are tie
pieces preferably utilised to give additional stability and durability to the frame-
work 1.
At the top of the rear standards A A of the frame, stationary hangers 22 are
secured having adjustable pivotal boxes therein of ordinary construction in which
is mounted the transverse horizontal driving shaft 3, that is provided about midway
the parallel standards A A with a large drive pulley 4, and at its projecting end
with tight and loose pulleys a b.
Integrally with the hangers 22 (and secured to the adjacent standard) are
oscillatory hangers 5 5, comprising respectively a stationary plate c, having an
annular flange at its upper portion and a companion plate d of similar construction,
but having its annular flanged portion of sufficiently greater circumference so as to
adapt its annular flange to enclose or overlap the annular flange projecting laterally
from the immovable plate c, and whereby the plate d is adapted to rotate or
oscillate. Centrally of the annular flanged portions of the plates c d of the respective
hangers 5, there is an opening for the passage of the driving shaft 3 of such contour
as will permit of the free rotation of the said shaft at all times. The hangers
are provided with the customary apertures for the insertion of oil or other
lubricants.
P is a pendulum or pendulum frame pivotally hung in the passage way lying
between the adjacent standards A. A of the frame 1 and adapted to oscillate
toward and from the operator standing at front of the table E. This pendulum
frame consists of the vertical parallel bars e e, disposed a suitable distance apart
and longitudinally extending from the top of the standards A to within a short
distance of their base, the said bars e e being retained and braced in proper relative
position by cross pieces ff secured thereto transversely.
The aforedescribed pendulum P is oscillatorily suspended from the standards A A
by the attachment of its bars ee at their top portion to the respective flat
pendent portions of the oscillatory or rotary plates d of the oscillatory
hangers 5 5.
At or near the bottom of the pendulum P, journalled in bearings upon the
rear face of the respective bars e e and standing between the same, is a horizontal
pulley 6, and, slightly above the aforesaid pulley but journalled in bearings upon
the forward face of the bars e e, there is a pulley 7, horizontally mounted
between the said bars and preferably of a size corresponding to that of the
pulley 6.
R is the saw carriage constructed in the usual manner, provided with customary
boxes, arbor, and a circular saw 8, and mounted on rollers g g, adapted to longi-
tudinal travel upon the trackway G. This carriage is provided at its top with
the usual opening to permit of the free rotation of the pulley 9 on the saw arbor,
and h is a curvilinear handle secured to the aforesaid carriage, its free extremity
projecting forwardly as shown.
The pendulum P is connected with the saw carriage by means of parallel
connecting bars i i, respectively disposed at the outer sides of the bars e e of the
pendulum and pivotally connected at their rear ends to the said bars e e at or about
their lower portion and pivotally connected at their forward ends to a side of the
saw carriage diametrically beneath the axis of the saw arbor, and usually to the
interior of the carriage frame as shown.
S is the driving belt, said endless belt passing around the drive pulley 4 down to

page_text: and around the pulley 7, thence to and around pulley 9 on saw arbor, thence around
the pulley 6, and thence to the starting point, herein before stated.
The exact points of connection of the parallel connecting bars ii to the bars e e
of the pendulum frame is accurately determined by experimental tests, continued
until it is definitely settled that the location of the pivotal attachment of the
connecting bars ii to the pendulum frame is such as to insure the belts being
equally as taut whatever may be the position of the saw carriage (and mounted
pulley) upon its trackway G, and thus obviating or avoiding undue tightness or
slack of the driving belt under every condition.
A few trials at the outset will demonstrate the correct pivotal connection
requisite for the satisfactory working of the parts.
L designates a horizontally disposed lever (or arm) projecting rearwardly from
the pendulum P and secured to one of the bars e thereof at its upper portion, and
provided with a weight w, suitably perforated and adapted to slide thereon and
retained in position at any desired point of the lever by means of a set screw s.
The object or function of this weighted lever is to regulate the thrust or travel of
the saw (and connected parts) rearward, the adjusting of the weight nearer to the
pendulum increasing the stroke of the pendulum's oscillation or travel rearward
and conjointly the rearward travel of the carriage and its saw, while the adjusting
of the weight further from the pendulum produces a contrary effect. Additionally,
the weight provided lever tends to a certain degree in assisting the forward
propulsion of the saw carriage (and supported saw) when drawn forwardly along
its trackway by the arm of the operator pulling upon the operative handle of the
said carriage, thereby materially assisting the operator, the severe strain upon
the operator's muscles of his arm and body incident to the manipulation of the
commonly constructed form of machines being obviated and the progress of the saw
through a board or boards being of comparative ease. Moreover, there being no
upward straining or lifting of the saw carriage, as is more or less the case with the
common forms of machines, a direct and easy forward movement of same is assured,
for, as will readily be observed, the connection of the travelling carriage with the
pendulum is such as obviates a lifting strain upon the operator, all that is entailed
being a forward direct pull upon the carriage handle by the operator, which
forward movement of the carriage is assisted by the weighted pendulum and its
connection, with the carriage. The automatic rearward movement of the pendulum
and its pivotally connected saw carriage may readily be adjusted or gauged by
the operator to the width of the board or other timber which it is expedient the
saw should clear after a cut or successive cuts merely by the proper adjusting
of the movable weight upon the lever connected to the pendulum.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me
by my foreign correspondents, I declare that what I claim is :-
The combination, in a sawing-machine, of the parallel vertical rear standards
extending upward some distance and disposed apart and creating a longitudinal
passage-way between them, vertical short posts standing forwardly of the aforesaid
rear standards and in line therewith, horizontal stringers extending from said
standards to the forward posts and constituting the machine-table, horizontal rails
erected beneath the said stringers a suitable distance therefrom and forming a
trackway, a horizontal driving-shaft journalled at the upper extremities of the
rear standards, a drive-pulley keyed to said shaft midway the said standards, a
vertically-disposed swinging frame or pendulum pivotally suspended from the top.
portion of the parallel rear standards and adapted to oscillate in the passage-way
between them, said swinging frame comprising two upright parallel bars disposed
a distance apart and retained lineally with each other, a lateral lever or stem
rigidly secured to one of the elongated upright bars of the swinging frame and
provided with an adjustable weight thereon, a horizontal pulley journalled to the
lower extremity of the swinging frame, a similar pulley journalled adjacent thereto

page_text: on a higher plane, a saw-carriage provided with an arbor, a pulley and a circular
saw secured to said arbor, and an operating handle connected to the carriage-body,
the said saw-carriage being adapted to longitudinal travel on the trackway of the
machine-bed by means of suitable carrying-rollers, parallel inclined bars disposed,
respectively, at opposite sides of the swinging frame at its lower extremity and
pivotally connected thereto and pivotally connected to the saw-carriage body at a point
beneath the saw-arbor, and an endless driving belt passing around the drive-pulley
at the top of the rear standards down to and around a pulley on the lower portion
of the swinging frame, then up and around the pulley on the saw-carriage, and
thence downwardly and around the bottom pulley on the lower extremity of the
swinging-frame, and from thence upwardly to the starting point-the drive-pulley-
all said parts constructed and operating together substantially as described, and
for the purposes specified.
Dated this 12th day of February 1892.
WM. P. THOMPSON & Co.,
Agents for the Applicant.