An Improved Machine for Laying Off Wood-work.
Year: 1890

page_text: Date of Application, 11th Dec., 1890
Complete Specification Left, 11th Sept., 1891-Accepted, 31st Oct.,
1891
PROVISIONAL SPECIFICATION.
An Improved Machine for Laying Off Wood-work.
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 abroad by Robert G. Love, of Richmond
in the County of Henrico, and State of Virginia, United States of America,
Inventor) to be as follows :-
My invention is in the nature of a new machine for laying off and marking
the stiles of shutters and doors and similar work, preparatory to cutting the
mortises therein by a mortising-machine, the object being to save labor by doing
the work more expediently than can be done by hand and to insure exactness
and accuracy in the joiner work.
My improved machine is constructed as follows:-It consists of a strong
framework, the top of which is left unobstructed to form a table or support upon
which the dressed lumber is piled so as to be conveniently accessible to the
workman. Upon the front horizontal edge of this frame is fixed a stationary
horizontal rail, which is slotted horizontally and in which slots are arranged to
slide, markers which have toothed edges and a hole to receive a fastening-screw
by which they are connected to a dovetail lug which is dropped vertically
in a corresponding groove in a block which is clamped to the horizontal rail
beforementioned, by means of a screw-bolt, passing through the slot of the rail,
which connection permits the block carrying the marker to be adjusted horizontally
along the length of the rail to any desired position. There are a number of
these markers in the rail, and their position defines the place on the lumber
where the marks are to be placed.
To. determine the depth of the penetration of the marker-teeth an adjustable
stop-screw placed in each block beside the marker-blade. A second movable
rail, slotted and provided with markers, and corresponding to the first mentioned
is arranged parallel thereto, in front of the same and is adjustably fastened by
means of screws and tailguides to a reciprocating frame. The object of this
adjustment is to increase the space between the rails in adapting the machine to
receive wider lumber. This reciprocating frame slides upon horizontal guide-rods
which at the inner ends are supported by the stationary rail or framework, and
at the outer ends are supported by offsetting curved brackets bolted at their
lower ends to the framework.
To the bottom of the reciprocating frame are jointed the outer ends of curved
connecting bars which at their inner ends are jointed to cranks on a rocking-shaft,
arranged in bearings beneath the table. This rocking shaft is connected by other
cranks with a vertical pitman, which at its lower end is jointed to a treadle so
that when the treadle is depressed the rocking-shaft rocks, and draws the con-
necting rods, the reciprocating frame, and the rail inwardly.
To force the rail outward again, a vertical leaf-spring is arranged to force the
frame in the opposite direction; or a weight and pulley may be used for the
same purpose.
In making use of this invention the stiles or dressed pieces of lumber are
separately placed between the two rails, and after being adjusted at the end
against a suitable stop the treadle is depressed and the front rail, with its markers,
is forced forward, and the piece of lumber between is marked on both sides
at once.
With this machine one man is enabled in a single day, to do the work of several
in the ordinary way, and with much greater exactness and nicety.

page_text: Instead of using a treadle for working the machine, it may be arranged to be
operated by a power-shaft.
וונים
.
1000
HORN & SON,
Applicant's Agents.
COMPLETE SPECIFICATION.
An Improved Machine for Laying Off Wood-work.
I WILLIAM WILSON HORN of the firm of Horn and Son 151, Strand in the
County of Middlesex Patent Agent do hereby declare the nature of this invention,
a communication to me from Robert G. Love of Richmond in the County of
Henrico and State of Virginia United States of America Inventor 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 in the nature of a new machine for laying off and marking the
stiles of shutters and doors and similar work, preparatory to cutting the mortices
therein by a mortising machine, the object being to save labour by doing the work
more expeditiously than can be done by hand and to insure exactness and accuracy
in the joiner-work.
It consists, in the peculiar construction and arrangement of the machine which I
will now proceed to describe with reference to the drawings, in which
Fig. 1 is a front elevation of the machine.
Fig. 2 is a top or plan view.
Fig. 3 is a vertical transverse section.
Fig. 4 is an enlarged plan view of one of the markers and its attachment and
Fig. 5 is a detail side view of one of the marker, blades.
In the drawings D represents a strong frame work, the top of which is left
unobstructed to form a table or support upon which the dressed lumber is piled so
as to be conveniently accessible to the workman. Upon the front horizontal edge
of this, frame is fixed a stationary horizontal rail A, which is slotted horizontally,
and in which slots are arranged to slide the, markers a which are best shown in
Figs. 4 and 5.
These markers have toothed edges as shown in Fig. 5 and a hole to receive a
fastening screw b. Fig. 4 by which they are connected with a dovetailed lug c which
is dropped vertically in a corresponding groove in a block d. This block is
clamped to the rail, A by means of a screw bolt e which passes through the slot of
the rail and which connection permits the block carrying the marker to be adjusted
horizontally, along the length of the rail to any desired position. There are a
number of these markers in the rail, and their position defines the place on the
lumber where the marks are to be placed. .
To determine the depth of the penetration of the marker-teeth an adjustable
stop-screw fis placed in each block,d, beside the marker-blade. B is a second
movable rail, slotted and provided with markers and corresponding to A..
9.
This rail B is arranged parallel to A in front of the same, and is adjustably
fastened by means of screws K and tail guides 9 to reciprocating frame C. The
object of this adjustment is. to increase the space. between the rails in adapting the
machine to receive wider lumber.
This frame C slides upon horizontal guide rods M which at the inner end are
supported by the stationary rail or frame work, and at the outer ends are supported
by offsetting curved brackets L, bolted at their lower ends to the frame work.
To the bottom of frame C are jointed the outer ends of curved connecting-
bars E, which at their inner ends are jointed to cranks F on a rock shaft: G,
arranged in bearings beneath the table." This rock shaft is connected by other
cranks F, with a vertical pitman H, which at its lower end is jointed to a treadle I,
so that when the treadle is depressed, the rock shaft Grocks and draws the con-
necting rods E, the frame C and the rail B inwardly. To force the rail outward

page_text: again, a vertical leafspring J is arranged to force frame C in the opposite direction ;.
or a weight and pulley may be used for the same purpose.
In making use of this invention the stiles or dressed pieces of lumber are
separately placed between the rails A and B, and after being adjusted at the end
against a suitable stop the treadle is depressed and the front rail with its markers,
is forced forward and the piece of lumber between is marked on both sides at once
with a never failing exactness with indentations, which locate the spots where the
mortises are to be made.
With this machine one man is enabled in a single day to do the work of several
in the ordinary way, and with much greater exactness and nicety.
Instead of using a treadle for working the machine, it may be arranged to be
operated by a power shaft..
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. The combination, with the slotted rail, of the marker block d the clamp
screw e stop screw f, and marker blade a with dovetail lug c and screw b sub-
stantially as shown and described.
2. The combination of the stationary frame D with horizontal slotted rail A,
having adjustable markers thereon, the bracket L and guide rods M fixed to the
front of the same, the frame C sliding on the guide rods and bearing the marker
rail B, the connecting-rod E rock-shaft G with cranks F F, the pitman H,
treadle I and spring J substantially as shown and described.
Dated this 10th day of September 1891.
HORN & SON,
Applicant's Agents.