Year: 1892

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page_text: other in any desired pattern by the channels K, K, K, etc., the object of the said
countersinks and their connecting channels being to afford sufficient air so as
to prevent any cohesion between the under surface of the metal sole plate B, and
the plane surface with which it may be brought in contact.
Metal end plates C, C, are provided for the ends of the wood stock A, of
the plane, which are constructed substantially as follows. On their inner sides and
forming a part thereof, are formed the V-shaped projections L, L, in such position
as will assure their engagement, when adjusted to position, with the V-shaped
notches G, G, which are formed in either end of the flange F, of the metal
sole plate B. Near either end of the inner sides of the metal end plates C, C, and
constituting a part thereof, are provided the projections M, M, which are found at
right angles thereto, and which are furnished with barbs or notches N, N,
the object of which will be presently explained. The upper ends of the metal
end plates C, C, are turned into the segment of a circle as shown, thus presenting
a symmetrical outline and doing away with sharp and obtrusive corners.
The wood stock A, of the plane, has formed in a central longitudinal position
of the sole thereof, the groove a, the purpose of which will be presently
explained.
Having thus described in detail the essential features of our invention, we will
now describe their adjustment on the stock of the plane, and their arrangement
with relation to each other when such has been effected.
The upper surface of the metal sole plate B, and the lower surface of the stock A,
of the plane, are brought into immediate contact with each other by a compression
brought to bear upon either or both powerful enough to force the several series of
vertical projections H, H, H, etc., formed on the upper surface of the metal sole
plate B, which have been described, into the wood stock A, of the plane, the fibre
of which on retracting-after the said operation-engaging with and filling in
beneath the barbs or notches I, I, I, etc., serves to assure the permanent fastening
and securing together of the wood stock A, and the metal sole plate B. During
this operation, the flange F, of the metal sole plate B, is entered in the groove a,
Fig. 3, of the wood stock A, and thus serves to assure against any lateral
displacement of the several parts described, during and subsequent to the
operation.
The metal end plates C, C, are next brought into position on either end of the wood
stock A of the plane, by being enforced by compression, or by being driven thereon
as deemed most expedient. During this operation, the V-shaped projections L, L,
which are formed on and project from their inner sides, engage with the V-shaped
notches G, G, which are formed in either end of the flange F, of the metal sole
plate B, and serve at the same time to bring the ends of the metal sole plate B,
and the wood stock A, of the plane into the closer contact and there lock them, as
well as the lower ends of the said metal end pieces C, C, into a joint with the ends
of the metal sole plate B, which project sufficiently beyond the ends of the wood
stock A, of the plane for that purpose. During this operation also, the projec-
tions M, M, which are provided on and project at right angles from the inner sides
near either end of the said metal end plates C, C, are forced into the wood of the
wood stock A, of the plane, the fibre of which retracting, engages with and fills in
behind the barbs or notches N, N, formed thereon; thus substantially and
permanently securing the metal end plates C, C, to the wood stock A, of the plane,
and assisting also in the further permanent stability and securing of the ends of the
metal sole plate B, already described.
Whilst we have described our invention as applicable to planes it is obvious that
it may be used to advantage with some other tools and particularly with levels, an
illustration of which application will be found in Fig. 7.
We are aware that metal plates, for protecting and assuring the correctness of
tools and instruments of precision, which are largely composed of wood and the
said plates secured thereto in various ways,-are and have for some time been in
use; but we are not aware that such metal plates, formed and arranged as has been

page_text: described, have been used in connection with carpenters' planes, or otherwise for
the purpose and objects or in the manner set forth herein.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is: -
1. In a carpenter's plane, the combination of a stock having a centrally disposed
longitudinal groove formed in its under surface, with a metal sole plate provided on
its upper surface with a series of barbed vertical projections arranged near either
side thereof, and a centrally disposed, longitudinal, upwardly projecting flange,
substantially in the manner and for the purpose herein described and specified.
2. In a carpenter's plane, a stock having a centrally disposed longitudinal groove
formed in its under surface; and a metal sole plate provided on its upper surface
with a series of barbed vertical projections arranged near either side thereof, a
centrally disposed, longitudinal, upwardly projecting flange provided at either end
with V-shaped notches, and a transverse slot D, in combination with the metal
end plates provided on their inner sides with centrally disposed V-shaped projec-
tions, and near either end with barbed projections at right angles thereto, substan-
tially in the manner and for the purpose herein specified and described.
3. In a carpenter's plane, a stock having a centrally disposed, longitudinal groove
formed in its under surface; a metal sole plate provided on its upper surface with a
series of barbed vertical projections arranged near either side thereof, a centrally
disposed longitudinal upwardly projecting flange provided at either end with
V-shaped notches, a transverse slot D, and the lower surface of said sole plate
provided with countersinks connected with each other by channels; and metal end
plates provided on their inner sides with centrally disposed V-shaped projections
and near either end with barbed projections at right angles thereto; the whole
combined and arranged in the manner and for the purpose herein described and
specified.
4. The improved construction of carpenters' planes, levels and like tools, substan-
tially as and for the purposes hereinbefore described, set forth and illustrated in the
drawings annexed.
Dated this Oth dovr of Fohm 1800
F. W. BARKER,
Applicants' Agent.