An Improved Wood Trimming and Mitering Machine.
Year: 1893

page_text: Date of Application, 18th July, 1893
Complete Specification Left, 19th Sept., 1893-Accepted, 18th Nov., 1893
PROVISIONAL SPECIFICATION.
An Improved Wood Trimming and Mitering Machine.
I, WILLIAM WILSON HORN, of the Firm of Horn & Son of 151 Strand, in the
County of Middlesex, Patent Agent, do hereby declare the nature of this invention
(a communication to me from William Ross Fox of Grand Rapids, in the County
of Kent in the State of Michigan, United States of America, Machinist) to be as
follows:-
This my invention relates to an improved wood trimming or mitering machine
and more particularly to that class of machine in which a knife is adapted to be
moved in guides across the grain of the wood to be cut, the said wood being held
against a guide which is adjustable upon the bed.
My invention consists in the novel construction arrangement and combination of
parts hereinafter described and set forth :-
The knife is mounted in horizontal guides formed in or upon the framing of the
machine, the said knife being moved in either direction by means of a lever handle,
the said handle carrying a segmental toothed rack adapted to engage a rack upon
the said knife. A table is arranged in rear of said knife upon which the work is
supported.
Guides extend across the said table to support the work at the required angle,
the said guides being adjustable from a centre which is in alignment with the
cutting edge of the knife. The said guides are locked in position by a bolt having
a shoulder or nut upon the lower end, the said bolt extending through a segmental
slot in the bed or table of the machine and being instantly adjusted in position by
means of an eccentric rocking handle. Upon the bed of the machine are a series
of lines indicating various angles at which the guide may be adjusted, and in order
to facilitate the rapid adjustment of the said guide, I provide the bed with a series
of notches in which a spring pin projecting downward from the under side of the
guide is adapted to engage. By this arrangement the work may be always
supported right up to the edge of the knife blade so as to ensure a clean cut.
Dated this 18th day of July 1893.
זגממ
0 SON
HORN & SON,
Applicant's Agents.
COMPLETE SPECIFICATION.
An Improved Wood Trimming and Mitering Machine.
I, WILLIAM WILSON HORN of the Firm of Horn & Son, of 151 Strand, in the
County of Middlesex, Patent Agent, do hereby declare the nature of this invention,
(a communication to me from William Ross Fox of Grand Rapids in the County
of Kent and State of Michigan, United States of America, Machinist) and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement :-
My invention has for its object to provide a gauge having a wide range of
adjustment and to provide means for controlling the same in order to maintain its
shearing edge accurately at the line of cut. It relates also to the particular
arrangement of the frame with relation to the gauge and knife in order that the
gauges may be adjusted through a wide range and whereby the frame may be
provided with shields without interfering with the movement of the gauges.

page_text: Trame located below and in the same plane with the line of cut; the special form
of the connection extending through a slot in the bed and combined with a clamp
also operating through the said slot and means for accurately, and quickly setting
the gauge to any angle determined upon.
In the drawings annexed hereto-
Figure 1, is a rear perspective view of the machine.
Figure 2, is a plan, and
Figure 3, a vertical section from front to rear through one of the gauges.
Figure 34 is a detail view of the preferred gauge stop.
Figure 4, is a detail bottom plan view of the pivotal connection.
The machine frame includes a bed 1, having a carriage way 2 extending across
near the rear face by which the knife carriage 3 is directed so that the knives 4
carried thereby will move along the cutting line 5-5. The carriage is moved by
a weighted lever 6, pivoted to the frame at 8, and having a segment 9 meshing
with a rack 10 on the carriage. The upper edge of the carriage moves in a way
formed in the cross bar 11 extending between two posts or brackets 12 the lower
right angular arms 13 of which are bolted to the rear face of the bed or frame and
in the rear of the plane of the knife carriage and knives. To these brackets the
angular wings or shields 14 are secured or cast extending laterally of the machine
and directly adjacent to the plane of the rear face of the knives so that as the
carriage is moved aside the knite will move in front of the angular wing and be
shielded thereby.
This construction of frame leaves the bed and space in front of the knife carriage
entirely free for the adjustment and arrangement of the gauges 15, which as shown
are of angular or wedge shape with the point of the wedge at the cutting line
forming a shearing edge 16. The gauge is adapted to swing so that its bearing
face 17 against which the work is placed will in one position be at an angle of
45 degrees with relation to the line of cut and in the other extreme position at an
angle of 30 degrees the shearing edge being always maintained at the cutting line.
For this purpose a curved slot 18 is formed in the bed plate and into this the
arm 19 of a forked bracket 20 extends to connect with the bottom of the gauge by
means of two screws 21 the end of the bracket arm having a broad bearing and
being seated in a recess on the under side of the gauge. The arm 22 of the
bracket extends horizontally to the rear and at its rear end an upturned pintle or
pivot is formed which fits a bearing socket 23 on the under side of the bed, the
centre of which is directly under the line of cut and of the shearing gauge
edge 16. By this construction the shearing edge will be held at the cutting line in
all the adjustments of the gauge, and the gauge may be fixed in any position by the
clamp consisting of the cap 24 bearing on the under side of the bed along the
edges of the slot between the forked arms of the brackets 20 and a clamp rod 25
having a head 26, at its lower end and an eccentric lever 26ª pivoted to its
upper end.
By this construction both the clamping means and the pivotal connection extends
through the slot from the gauge. The eccentric lever is arranged over a boss or
enlargement 27 between the two wings of the gauge. In order that the gauge may
be set quickly and accurately in any position I provide a pin 28 in the boss 29 on
the gauge which pin is preferably forced down by a spring 30 to engage with the
table thus serving as a stop preferably by entering any one of a series of holes in
the table corresponding to the different angles to which it is necessary to shift the
gauge. The lower end of the pin is conical.
As before stated the frame work of the machine is in the rear of the knife
carriage so as to leave the bed free in front of the carriage for the adjustment of
the gauges.
The shields or wings are also in the rear of the carriage and by
reason of this arrangement they can be made to extend completely over the sides
of the knives so as to shield the entire edge thereof when the knife is shifted to one

page_text: side. This would not be the case were the wings in front of the plane of the
knives as it would be necessary then to cut away a part of the shield to allow the
gauge to swing its full distance or the adjustment of the gauge would have to be
more limited.
In Figure 3 is shown the preferred manner of supporting the spring stop for the
gauge in which the boss 29x is fitted to an enlarged opening 40 in the gauge which
will permit adjustment of the boss laterally, such adjustment being allowed also by
the enlarged openings 41 in the flange 42 through which the holding screws 28*
pass into the gauge.
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 combination, the bed or frame, the knife and carriage with operating means
therefor, the swinging gauge having a shearing edge at the line of cut and the
pivotal connection between the gauge and the frame, the centre of which is in the
plane of the shearing edge and cutting line and below the same said gauge having
its bearing face radiating from the centre of the gauge pivot, substantially as
described.
2. In combination the bed or frame, the knife and carriage with operating means
therefor, the swinging gauge having a shearing edge at the line of cut and the
pivoted connection between the gauge and frame comprising the arm extending
from the gauge through a slot in the frame and pivoted at its end thereto, the
centre of the pivot being in the plane of the cutting line and below the same, said
gauge having a bearing face radiating from the pivot centre, substantially as
described.
3. In combination, the bed or frame, the knife and carriage with operating means
therefor, the swinging gauge having a shearing edge in the plane of the cutting line
and the pivotal connection between the gauge and the bed comprising the arm
connected to the gauge extending under the frame and having an upturned pivot at
its end fitted to a socket in the plane of the cutting line and shearing edge of the
gauge, substantially as described.
4. In combination, the slotted frame, the knife carriage and knife the gauge, the
pivotal connection extending therefrom through the slot to the under side of the
frame and the clamp for the gauge extending through the slot and bearing on
the edges of the slotted frame independent of the pivot connection, substantially as
described.
5. In combination, the slotted frame, the knife, the knife carriage, the gauge, the
forked bracket extending from its under side through the slot to the lower side of
the frame to which it is pivoted and the clamp for the gauge extending between the
forks of the bracket, substantially as described.
6. In combination, the carriage, the knife and the frame comprising the bed and
the vertical portion in rear of the carriage, the swinging gauge arranged on the bed
in front of the carriage and the wings or shields arranged on the frame in rear of
the carriage and on the opposite side thereof from the swinging gauge, substantially
as described.
7. In combination, the gauge, the bed and the vertically movable stop carried by
the gauge and adjustable laterally thereon, in all directions, said stop being arranged
to enter holes formed in the bed.
8. In combination, the gauge having the opening, the boss of smaller diameter
adapted to said opening and adapted to be moved laterally therein in any direction,
and having a flange with openings, the screw passing through said openings and of
smaller diameter than said openings, and the stop passing through the boss to engage
the table or bed, substantially as described.
9. In combination the frame, the knife and its carriage movable therein, the
swinging gauge having a shearing edge at the line of cut and the vertically movable

page_text: stop pin having a conical lower end adapted to enter holes formed in the frame,
substantially as described.
Dated this 10th d... of Contambo 1000
HORN & SON,
Applicant's Agents.