Timber-Jack. Page: 2 of 3
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UNITED STATES PATENT OFFIC.
JAMES H. BARRET, OF MELROSE, TEXAS.
TILBER-JACK.1,134,581.
Specification of Letters Patent.
Patented Apr. 6,1915.
Application filed rune 15, 1914. Serial No. 845,310.
To all whom it may concernn:
Be it known that I, JAMES H. BARRET,
a citizen of the United States, residing at
Melrose, in the county of Nacogdoches and
5 State of Texas, have invented certain new
and useful Improvements in Timber-Jacks;
and I do hereby declare the following to be
a full, clear, and exact description of the in-
vention, such as will enable others skilled in
10 the art to which it appertains to make and
use the same.
This invention relates to new and useful
improvements in timber jacks, and has for
its principal object to provide a device
15 which is particularly adapted for use for
persons using cross-cut saws on large pieces
of timber.
With the above and other objects in view
the invention consists in the novel combina-
20 tion and arrangement of parts which will be
fully set forth in the following specification
and accompanying drawing, in which the
drawing illustrates a timber jack construct-
ed in accordance with this invention.
25 Referring now to the drawings by charac-.
ters of reference, the numeral 1 designates
the main frame of the timber jack compris-
ing the body portion 2, having the enlarged
portion 3 formed centrally thereof. This
3o enlarged portion is formed with an inter-
nally screw threaded aperture through
which the threaded stem 4 carrying the lift-
ing tongs, extends. This threaded stem is
provided at its upper end with the cross
35 handle 5, by means of which the same is
rotated. A pair of depending ears 6 are
formed at the ends of the body portion 2,
and said ears are connected at their free ter-
minals with the closure 7, the use of which
40 will appear as the description proceeds.
The end of the threaded stem 4 opposite the
cross handle 5, terminates in a reduced ex-
tension which is arranged to project through
the body portion 8 which is preferably seg-
45 mental as clearly illustrated in the draw-
ings.
Pivotally secured as at 9 to the free ends
of the segmental body 8 are the tongs 10,
having the dogs 11 formed at their free ter-
50 minals. These dogs 11 are arranged to grip
the timber which is being sawed and thus
prevent the tongs from slipping from their
position.
Pivotally secured as at 12 between the ears
55 6 are provided the legs or rectangular tubu-
lar members 13, which are provided withsuitable apertures near their lower extremi-
ties, the use of which will appear as the de
scription proceeds, A suitable rectangular
member 14 is slidable in the member 13 and 60
is also provided with a plurality of aper-
tures which are arranged to register with
the aperture formed in the member 13,and
receive the latch or locking member 15 which
is riveted or otherwise secured as at 16 to the 65
member 13. These slidable legs 14 are pro-
vided at their lower terminals with the feet
17, and thus it will be seen that a firm en-
gagement with the surface of the ground is
thereby obtained. 70
A pair of rods 18 and 19 which are held
to the legs 14 by means of the staples 20 are
provided at their free terminals with suit-
able hook members 21 which are preferably
sharpened and are arranged to be driven 75
into the timber when the same is in place in
the jack. These rods are arranged' to hold
the timber 30 and prevent any accidental
movement thereof.
It will be apparent from the foregoing so
that in use the legs are swung on their pivots
to the position illustrated in the drawing, at
which time they will engage the portion 7
and be prevented from further outward
swing. The cross handle 5 is then turned 85
so that the threaded stem 4 will pass down-
wardly through the internally screw thread-
ed enlargement 3, and simultaneously with
this movement the tongs 10 are spread so
that when the movement of the handle is 90
reversed the dogs 11 will bite into the sur-
face of the timber which is to be handled
and will thus be prevented from becoming
accidentally displaced. To further assist in
the holding of the timber which is being 95
handled, the pointed ends of the angular
extensions 21 on the members 18 and 19 are
driven into the log in such a way that any
accidental movement thereof is eliminated.
While in the foregoing there has been 100
shown and described the preferred embodi-
ment of this invention, it is to be understood
that such changes may be made in the com-
bination and arrangement of parts as will
fall within the spirit and scope of the inven- 105
tion as defined in the appended claims.
Having thus described my invention, I
claim:
1. A timber jack including a body portion
having an internally screw threaded aper- 110
ture formed centrally thereof, a pair of
legs hingedly secured to the ends of the body
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Reference the current page of this Patent.
Barret, James H. & Barret, J. H. Timber-Jack., patent, April 6, 1915; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth858121/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.