AN APPARATUS FOR DRAWING OR EXTRACTING BOLTS, NAILS, &c., AND FOR VARIOUS OTHER USEFUL PURPOSES
Year: 1814

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
GLOVER, of Penton Place, Walworth, in the County of Surry, Gentleman,
send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Tenth day of December,
in the fifty-fifth year of His reign, give and grant unto me, the said Edward
Glover, my exors, admors, and assigns, His especial licence, full power, sole
priviledge and authority, that I, the said. Edward Glover, my exors, admiors,
and assigns, should and lawfully might, during the term of years therein
mentioned, make, use, exercise, and vend, within England, Wales, and the
Town of Berwick-upon-Tweed, my Invention of "AN APPARATUS FOR DRAWING
OR EXTRACTING BOLTS, NAILS, &c., AND FOR VARIOUS OTHER USEFUL PURPOSES ;*
in which said Letters Patent there is contained a proviso that if I, the said
Edward Glover, shall not particularly describe and ascertain the nature of my
said Invention, and in what manner the same is to be performed, 'by an
instrument in writing under my hand and seal, and cause the same to be
inrolled in His Majesty's High Court of Chancery within six calendar months
next and immediately after the date of the said Letters Patent, that then the
said Letters Patent, and all liberties and advantages whatsoever thereby
granted, shall utterly cense, determine, and become void, as in and by the
same (relation being thereunto had) may more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Edward Glover, do hereby declare that the nature of my said Invention,
and manner in which the same is to be performed, are particularly described
as follows (that is to say):-
My Invention consists in an apparatus for drawing bolts, nails, &c. out of
timber, &o., for raising of weights, and other useful purposes to which it is
applicable.
Fig. 1. A, A, the container, with studs or small spikes on its base,
that it might not revolve; its internal part hollow, and formed of six or eight
squares (or any number) to receive the like on base of cylinder B, B, to
prevent its turning, which cylinder is also hollow, having its lower part an
inverted cone about three inches high from the bottom, varying with the sizes
required. On the outside of the cylinder B, B, is cut a screw, to which a
nut C, C, is fitted, acting on the upper part of the container A, A, and turned
by the lever D, D, by which the cylinder is regularly elevated, and the power
obtained. In the hollow inverted cone strong nippers E, E, are introduced
(from the lower part) to take first hold of the bolt, &c. when low in the wood;
upon the cylinder being raised as much as may be required for the nippers
to have sufficient hold, a wedge F, F; is. introduced (at top) to prevent their
straining; when the bolt is raised as high as the screw will admit, the nippers
are to be removed, and clams G, G, Fig. 2, to replace them. By this second
operation the bolt will be raised above the cylinder, when a separate or loose
inverted cone H, H, Fig. 3, is prepared, and may be fixed to rest on the head
of the cylinder, and short clams I, I, used for the remaining part to be per
formed, they being always in tight and easy to regulate, when the whole is
accomplished (the length of the bolt being no impediment). A cap K, K,
Fig. 4, may be placed on the head of the cylinder, when it will act as an
elevating screw (or jack in the box so called) to raise or compress any articles,
in which cap K, K, Fig. 5, a bolt L, L, is passed thro' and fixed by a screw
and nut on the upper side of the cap, or a pin by which the bolt is sustained,
its length to reach below the lower part of the cylinder, having an eye or
hook to receive a chain, hook, ring, or eye bolt that may require drawing out,
raise any weight that it may be attached to, or other purposes which form its
presumed utility it may be applicable. To prevent the probable expansion of
the cylinder by the operation of the nippers in the cone of Fig. 1, from the
very great adhesion or resistance which, in large bolts, is equal to many tons,
I have suspended an iron carriage Fig. 6, 6, to be applied to the hook or
eye bolt of Figure 5, 5, with very strong nippers, and tumbling sides to adjust
themselves to the angles; the nippers may form also an iron cone Fig. 7, to
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page_text: which may be applied the nippers of the largest size now made, and also short
clams which will act equal with Fig. 6, and more simple. The three prin-
cipal mechanical powers are herein combined, viz., the lever, the screw, and
the wedge.
In witness whereof, I, the said Edward Glover, have hereunto set my
hand and seal, this First day of June, in the year of our Lord One
thousand eight hundred and fifteen.