CERTAIN IMPROVEMENTS IN THE CON- STRUCTION OF BEDSTEADS, SOPHAS, AND OTHER SIMILAR ARTICLES
Year: 1825

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JACOB
PERKINS, of Fleet Street, in the City of London, Engineer, send greeting.
WHEREAS His present most Excellent Majesty King George the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Eleventh day of August, One thousand eight hundred
and twenty-five, in the sixth year of His reign, did, for Himself, His heirs
and successors, give and grant unto me, tho said Jacob Perkins, His
especial licence that I, the said Jacob Perkins, my exors, adñiors, and
assigns, or such others as I, the said Jacob Perkins, my exors, admors, or
assigns, should at any time agree with, and no others, from time to time and
at all times during the term of years therein expressed, should and lawfully
might make, use, exercise, and vend, within England, Wales, and the Town
of Berwick-upon-Tweed, and also in His said Majesty's Colonies and
Plantations abroad, the Invention of "CERTAIN IMPROVEMENTS IN THE CON-
STRUCTION OF BEDSTEADS, SOPHAS, AND OTHER SIMILAR ARTICLES," communicated
to me by a certain Foreigner residing abroad; in which said Letters Patent
is contained a proviso obliging me, the said Jacob Perkins, by an instrument
in writing under my hand and seal, particularly to describe and ascertain the
nature of the said Invention, and the manner in which the same is to be
performed, and to cause the same to be inrolled in His Majesty's High Court
of Chancery within six calendar months next and immediately after the

page_text: date of the said in part recited Letters Patent, as in and by the same,
reference being thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Jacob Perkins, do bereby declare that the nature of the said Invention, and
the manner in which the same is to be performed, are particularly described
and ascertained in and by the Drawings hereunto annexed, and the following
description thereof (that is to say) :-
The Invention consists in the application of a rack and catch, acting in the
manner of a windlass, applied to a bedstead for the purpose of securing the
several parts together by tightening the sacking. The manner of effecting
this is seen by the accompanying Drawing, viz, by attaching a rack to each
end of the side and end pieces of the bedstead on which the sacking is
fastened, and on the posts of the bedstead eight catches to act on the racks.
DESCRIPTION OF THE DRAWING.
Fig. 1 is an end view of the bedstead; the side is formed in the same
manner. Figs. 2 and 3 are sectional and inside views of the same, shewing
more particularly the right and left hand racks and catches. Figs. 4. 5, 6, arc
three views of the right-hand rack, which is made of brass (or other suitable
metal), and made in one piece, so as to form at the same time a collar, socket,
and plug. The teeth of the left-hand rack stand in an opposite direction to
the teeth of the right-hand rack.
Fig. 1. A, A, the collar and socket on each end of the end piece, having
in it one or more holes, into which a lever is inserted in order to tighten up
the sacking; b, b, the racks; c, c, the catches.
Fig. 2. b, the rack; c, the catch. At d is a small stud, shewing the
situation in which a series of them are placed the whole length of the side and
end pieces on which to attach the sacking. It will be seen that the part into
which the stud is fixed is cut away so far as not to allow the head of the stud
to rise beyond the circle of the circumference.
Fig. 3. The same remarks that are made on Fig. 2 are applicable to this
Figure also.
Fig. 4, the socket and collar. It will be seen here that there are cross bars:
cast with this piece, which are let into the woodwork, in order to prevent the
one from turning round without the other when the lever is applied.
Fig. 5.-C, the plug; D, the socket and collar; E, the rack. The plug fits 3
into a hole made in the post of the bedstead, as shewn by thedotted lines in
Fig. 1, g,g.
:
Fig. 6, a reverse view of the socket, collar, and rack, to that of Fig. 4.