A New or Improved Apparatus for Planing or Shooting Mitres.
Year: 1892

page_text: Date of Application, 21st Sept., 1892
Complete Specification Left, 20th June, 1893-Accepted, 29th July, 1893
PROVISIONAL SPECIFICATION.
A New or Improved Apparatus for Planing or Shooting Mitres.
I, ARTHUR EXELL MEARS of 2 Helena Road Windsor, Berks. Gentleman do
hereby declare the nature of this invention to be as follows
This invention relates to an improved apparatus to be used in shooting or planing
mitres, and has for its object to provide an apparatus which can be readily adjusted
to any desired angle, and which can be used in conjunction with an ordinary joiners
plane.
This apparatus is constructed with a bed plate of metal, wood or other suitable
material, which can be readily fixed to any bench or table and removed therefrom,
when required. To this is hinged at one end, a frame, having two ledges or slides
extending longitudinally, of a sufficient distance apart to allow a plane to slide
between them and be supported by them. This frame is formed with a central opening,
somewhat less in width than the plane, but sufficiently wide to allow the mitred
end of the strip to be planed or trued, to project through to the front of the frame.
This strip rests upon an adjustable bar, sliding in a groove in the top of the bed
plate, and adjusted by means of a thumbscrew to any desired position. This bar is
of the same width as the opening in the frame above mentioned, and is adjusted to
project through sufficiently to allow the upper edge to come flush with the frame,
which is set at the same angle as the required mitre or bevel. This is to support
the sharp edge of the mitre, which otherwise would be broken and chipped by the
plane, instead of being cut clean. The mitred strip or plank is held by means of
two adjustable cheeks, sliding in two longitudinal slots in the bed plate on either
side of the central bar above mentioned, and each provided with two or more set
screws having loose plates at the end, between which the wood is held. Screws
and fly nuts serve to hold these cheeks in position in the slots after adjustment.
The hinged frame above described is adjusted by means of two links, one at each
side, with pins moving in slots in the frame and bed plate, nuts being provided to
fix it in position. By this means the frame can be rapidly adjusted to any desired
angle, a suitable indicator being provided, if required, to indicate the angle at
which it is placed. When not in use this frame can be turned down on top of the
bed plate, the whole arrangement thus forming a compact and portable apparatus,
which can be taken up and placed in any desired position.
This apparatus also obviates the necessity of employing a special form of plane,
the ordinary joiner's plane being suitable for this purpose, the position in which it is
used being also more advantageous than that required in the ordinary machines for
this purpose.
Dated this 20th dox of Sentember 1892.
GEO. H. RAYNER,
37, Chancery Lane, London, W.C., Agent for the Applicant."
COMPLETE SPECIFICATION.
A New or Improved Apparatus for Planing or Shooting Mitres.
I, ARTHUR EXELL MEARS of 2 Helena Road Windsor Berks. Gentleman 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:-
This invention relates to apparatus for planing or shooting mitres which apparatus
can be adjusted to any desired angle and may be used in conjunction with an
ordinary joiners plane.
My improved apparatus consists essentially of a base or bed plate to one end of

page_text: which is hinged a frame provided with two ledges between which an ordinary plane
is supported so as to slide easily along the said frame, which latter is formed with
a central opening to permit the end of the strip to be planed to project through to
the front of the frame. The said strip rests upon a bar capable of adjustment by
means of a thumbscrew along the top of the base or bed plate, the bar being of the
same width as the opening in the frame, so as to permit of its upper edge being
brought flush against the sliding or planing surface of the said frame thus providing
a support for the thin edge of the mitred strip. The strip is held between two
cheeks capable of longitudinal adjustment by means of tightening screws entering
longitudinal slots formed in the bed plate, the said cheeks, or one of them, being
provided with a clamping screw or screws. The hinged frame is adjusted to any
angle by means of side links carrying pins passing through slots in the frame aud
bed-plate, the said pins being provided with nuts for fixing the frame in the
required position.
Referring to the accompanying sheet of drawings
Fig. 1 is a side elevation of my improved apparatus and Fig. 2 is a plan of the
same.
Fig. 3 is an end elevation and Fig. 4 is a cross section on the line x, x of Fig. 1
looking towards the hinged frame.
In Figs. 1 to 4 the apparatus is shown as constructed chiefly of wood but
Fig. 5 is a cross section showing its construction in metal.
a is the base or bed plate of the apparatus which may be fixed by any suitable
means to a bench or table, b is the frame hinged at b' to the base a and formed with
two ledges t², b², between which the operating plane slides. The frame is formed with
an opening c to permit of the passage through it of the adjustable bar d and of the
strip e carried thereon. The bar d is held between two cheeks f,f, to which it is fixed
by means of screws and nuts g, a passing through a longitudinal slot h, formed in the
bar d. The said cheeks f are fixed to the base a by screws and nuts i and may be
adjusted along the same by the heads of the screws entering slots j, j formed in the
base, the nuts being unscrewed for the purpose and screwed up for fixing the cheeks
in the required position, according to the length of the strip being operated upon.
The bar d may be adjusted along the base a by means of the thumbscrew k for
bringing its top front edge flush with the sliding surface k³ of the plane supporting
frame b. The mitre strip e is held between the cheeks f by the clamping screw b,
between the end of which and the strip is a circular plate 6. The frame b is fixed
at any desired angle with the base a, by means of side links m, m, through the ends
of which pass pins n and n', the pins n also passing through slots o formed in each
side of the frame, and the pins n' passing through slots o' formed in the base a.
The ends of the pins are screw-threaded and provided with nuts p whereby the
pins can be secured in any position in the said slots, and it is evident that when not
in use the frame 6 can be turned down so as to lie flat on the top of the base a.
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 apparatus for planing or shooting mitres the combination of the base or
bed plate a hinged frame b and side links m, m, substantially as described and
shown in the accompanying drawings.
2. The combination with the base or bed plate a and frame b as above claimed
of the adjustable bar or support d and the adjustable cheeks f, f, substantially as
described and shown and for the purposes specified.
3. The improved apparatus for planing or shooting mitres substantially as
described and for the purposes specified.
Dated this 10th do of Lu 1902
GEO. H. RAYNER,
37, Chancery Lane, London, W.C., Agent for the Applicant.