IMPROVEMENTS IN SAWING : MACHINERY
Year: 1866

page_text: LETTERS PATENT to Henry Wilson, Manager to Powis, James, and Com-
pany, of Victoria Works, Belvedere Road, Lambeth, in the County of
Surrey, Engineers, for the Invention of "IMPROVEMENTS IN SAWING
: MACHINERY."
Sealed the 24th August 1866, and dated the 27th February 1866.
PROVISIONAL SPECIFICATION left by the said Henry Wilson at the
...Office of the: Commissioners of Patents, with his Petition, on the 27th
February 1866.
I, HENRY WILSON, Manager to Powis, James, and Company, of Victoria
Works, Belvedere Road, Lambeth, in the County of Surrey, Engineers, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN SAWING
MACHINERY," to be as follows:-
My Invention consists, first, in combining a band saw and a jigger saw in
the same machine as hereafter described. Upon the bracket in which the
spindle of each wheel round which the band saw revolves or upon the spindle
itself I attach an oscillating lever. One or both arms of each lever carries
at the end thereof a 'quadrant or curved plate, and the upper and lower levers
are connected to each other by a connecting rod. I fit a jigger saw in any
ordinary manner between the quadrant of the upper lever and that of the
lower lever, and as the levers are caused to oscillate this saw receives an
up-and-down motion, so as to act upon the wood or other material to be sawn.

page_text: The oscillating motion is imparted to the levers by means of a link carried
from the lower lever to an arm of a wheel at any convenient part of the
machine.
Another method of combining a band saw and a jigger saw consists in
forming the wheels of the band saw with two flanges instead of one, as here-
tofore; the band saw passes round one flange in the ordinary manner, while
the other flange takes the place of the quadrant-plates-before-mentioned, and
has the jigger saw connected thereto... The two; wheels are connected together
by a rod, and a link leads from an arm of one of them to an arm of a wheel,
as the link before mentioned, so that the wheels receive an oscillating motion.
When the band saw is to be worked the link and connecting rod are discon-
nected, and when the jigger saw is required to be put into operation they are
put into action.
The next part of my Invention relates to means of allowing for the ex-
pansion and contraction of band saws in working, and consists in the employ
ment of a spring like a common carriage spring.. This spring is supported in
the middle on a bracket carried up from the head of the trunk of the machine;
one end is connected by a link to the dovetailed plate, in which the dovetail
of the upper saw, wheel works, while the other end is connected to the upper
end of the ordinary tension rod. The expansion and contraction of the saw
in working are counteracted-by-the-action of-this-spring.
The next part of my Invention relates to the packing of the saw in the
table. Upon the pin on which the table is free to swing I hinge a box below
the table; this box receives blocks of hard wood or other suitable material,
the top of which when brought together in the box is of spherical or rounded
form. The table is hollowed out beneath to correspond with the shape of the
blocks, so that as the table, is,canted the blocks work in the hollowed portion,
in a similar manner. to a ball-and-socket joint; the saw is thus always allowed.
to work in the proper position, and the packing remains level, with the top
surface of the table. In order to avoid the necessity of going to the back of
the machine, to loosen the nut, of the back quadrant, below the table when the
table, is required to be canted, I employ only one nut to lock both the quadrants;
for, this purpose I carry, a bolt through the central column and through the slot
of each quadrant, and I fit a nut on one end of the bolt, so that by tightening
or, loosening this nut both the quadrants are locked or freed..

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henry Wilson in the Great Seal Patent Office on the 27th
August 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
WILSON, Manager to Powis, James, and Company, of Victoria Works, Bel-
videre Road, Lambeth, in the County of Surrey, Engineers, send greeting. "
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-seventh day of February, in the year of our Lord
One thousand eight hundred and sixty-six, in the twenty-ninth year of Her
reign; did, for Herself, Her heirs and successors, give and grant unto me,' the
said Henry Wilson, Her special licence that I, the said Henry Wilson, my
executors, administrators, and assigns, or such others as I, the said Henry
Wilson, my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter 'during
the term therein expressed, 'should and lawfully might make, use, exercise,
and vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
SAWING MACHINERY," upon the condition (amongst others) that I, the said
Henry Wilson, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.
NOW KNOW YE, that I, the said Henry Wilson, do hereby declare the
nature of said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, reference being had to the Drawings bereunto annexed,
that is to say:-
My Invention consists, first, in combining a band saw and a jigger saw in
the same machine as hereafter described. Upon the bracket in which the
spindle of each wheel round which the band saw revolves is fitted or upon
the spindle itself I attach an oscillating lever. One or both arms of each
lever carries at the end thereof a quadrant or curved plate, and the upper and
lower levers are connected to each other by a connecting rod. I fit a jigger
saw in any ordinary manner between the quadrant of the upper lever and that
of the lower lever, and as the levers are caused to oscillate this saw receives

page_text: an up-and-down motion, so as to act upon the wood or other material to be
sawn. The oscillating motion is imparted to the levers by means of a link
carried from the lower lever to an arm of a wheel at any convenient part of
'the machine.
Figure 1 of the accompanying Drawings is a front elevation, and Figure 2
a side elevation of a machine in which a band saw and a jigger saw are com-
bined in the manner before described.
a, a, are the wheels or riggers, round which the band saw b revolves; c, c,
are the spindles of the wheels a, a; and d, d, are the brackets in which these
spindles are fitted; e, e, are oscillating levers, one on each of the spindles
c, cff, are quadrants or curved plates, one on one arm of each lever e; g'is
a jigger saw between the quadrants f, f; this saw may be fitted in any ordinary
manner, but it is shewn in the Drawings as secured by thumbscrews h, h; i is
a connecting rod connecting the upper and lower levers e, e; j is a link
earried from an arm e¹ of the lower lever e to an arm of a wheel k, which may
be placed either in the position shown or in any other convenient part of the
machine. When the jigger saw 9 is required to be put into operation the
rotary motion given to the wheel k causes the link i to impart an oscillating
movement to the lower lever e, from which it is transmitted by the rod i to
the upper lever, and thus the jigger saw g receives an oscillating or up-and-
down motion.
Another method of combining a band saw and a jigger saw is represented
in Figures 3, 4, and 5, and consists in forming the wheels a, a, of the band
saw with two flanges l, m, as shewn, instead of one as heretofore; the band
saw passes round one flange in the ordinary manner, while the other
flange m takes the place of the quadrant plates f.f, in Figures 1 and 2, and
The two wheels are connected
has the jigger saw 9 connected thereto.
together by a rod i, and a link j leads from an arm of one of them, as shewn,
to an arm of a wheel as the link i in Figures 1 and 2, so that the wheels a, a,
receive an oscillating motion. When the band saw b is to be worked the linkj
and connecting rod i are disconnected, and when the jigger saw 9 is required
to be put into operation they are put into action.
The next part of my Invention relates to means of allowing for the expan-
sion and contraction of band saws in working, and consists in the employment
of a spring like a common carriage spring, as represented at n, Figures 1 and
2. This spring n is supported in the middle by a bracket o carried up from
the head of the trunk p of the machine; one end is connected by a link or
rod to the dovetailed plate r, in which the dovetail of the upper saw wheel a

page_text: works, while the other end is connected to the upper end of the ordinary
tension rods; the expansion and contraction of the saw in working are
counteracted by the action of this spring.
The next part of my Invention relates to the packing of the saw in the
table. Upon the pin on which the table is free to swing I hinge a box below
the table, as represented in Figures 6 and 7, in which t is the box hinged to
the pin u, on which the table vis free to swing. Figures 8 and 9 are
detached views on a larger scale of the box t; this box receives blocks w of
hard wood or other suitable material, the top of which, when brought together
in the box as shewn, is of a spherical or rounded form. The table is hollowed
out beneath, as shewn, to correspond with the shape of the blocks w, so that
as the table is canted the blocks work in the hollow portion in a similar
manner to a ball-and-socket joint; the saw is thus always allowed to work in
the proper position and the packing remains level with the top surface of the
table. In order to avoid the necessity of going to the part of the machine where
the saw acts in order to loosen the nut of the quadrant below the table at that
part when the table is required to be canted, I employ only one nut to lock both
the quadrants, as seen in Figures 6 and 7, in which x, x, are the two quadrants
for this purpose. I carry a bolt y through the central column and through
the slot of each quadrant, as shown, and I fit a nut on one end of the bolt, so
that by tightening or loosening this nut both the quadrants are locked or freed.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim as my improve-
ments in sawing machinery,-
First, combining a band saw and a jigger saw in the same machine sub-
stantially in the manner herein-before described and represented in Figures
1 and 2 of the accompanying Drawings.
Second, combining a band saw and a jigger saw in the same machine sub-
stantially in the manner herein-before described and represented in Figures 4,
5, and 6 of the accompanying Drawings.
Third, the employment, substantially in the manner herein-before described
and represented in Figures 1 and 2 of the accompanying Drawings, of a spring
like a common carriage spring for the purpose of allowing for the expansion
and contraction of band saws in working.
Fourth, the employment, in connection with the packing of the saws in the
table, of a box containing blocks of hard wood or other suitable material,
arranged and fitted substantially in the manner herein-before described and
represented in Figures 6 to 9 of the accompanying Drawings.

page_text: Fifth, the arrangement for locking both quadrants by means of one nut,
substantially as herein-before described and represented in Figures 6 and 7 of
the accompanying Drawings.
In witness whereof, I, the said Henry Wilson, have hereunto set my hand
and seal, the Twenty-fourth day of August, One thousand eight hundred
and sixty-six.
HENRY WILSON. (L.B.)