ENTIRE NEW WEIGHTS, BOLTS; AND SPRINGS, FOR IMPROVING ALL KINDS OF WRITING AND READING DESKS, TABLES, CHAIRS, STOOLS, TAMBOUR FRAMES, LIBRARY STEPS, BEDSTEADS, AND VARIOUS OTHER ARTICLES
Year: 1798

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, DAY GUNBY,.
of Cross Street, Hatton Garden, in the County of Middlesex, Carpenter,
sends greeting.
WHEREAS His present Majesty, by His Letters Patent under the
Great Seal of Great Britain, bearing date at Westminster, the Sixth day
of July last past before the date of these Presents, was graciously pleased
to give and grant unto the said Day Gunby, his exors, adññiors, and assigns,
especial licence, full power, sole privilege and authority, to make, use,
exercise, and vend, within England, Wales, and Town of Berwick-upon-
Tweed, during the term of fourteen years from the date of the said Patent,
the said Day Gunby's Invention of "ENTIRE NEW WEIGHTS, BOLTS; AND SPRINGS,
FOR IMPROVING ALL KINDS OF WRITING AND READING DESKS, TABLES, CHAIRS,
STOOLS, TAMBOUR FRAMES, LIBRARY STEPS, BEDSTEADS, AND VARIOUS OTHER
ARTICLES;" in which said Letters Patent is contained a proviso, making it
necessary for the said Day Gunby, particularly to describe and ascertain the
nature of his said Invention, and in what manner the same is to be performed,
by an instrument in writing under his hand and seal, and to cause the same to
be inrolled in His said Majesty's High Court of Chancery within one
calendar month next and immediately after the date of the said Letters
Patent, as in and by the same (relation being thereunto had) may more
at large appear.
NOW KNOW YE, that in compliance with the said proviso, the said
Day Gunby doth hereby declare that the nature of his said Invention, and the

page_text: manner in which the same is to be performed, is particularly described
in the Drawings and Plans hereunto annexed, and description thereof, as
follows (that is to say):-
To prepare for applying the Invention to a writing desk, as in Drawing
Number 2: First, the floor or plinth is to be made of any sort of wood, the
ends framed in the manner of a common library table; the back, of wood,
is affixed with plates and screws as in a common piece of furniture; thus is
the case formed. Two small pillasters of wood supporting an arch of wood
from the vacancies for the weights (G, G,) in Drawing Number 2, and
sliding legs or supporters which are made with hard wood, brass, or steel, or
iron, or metallic composition, but most conveniently of wood or brass, and
racks are made by knotches, holes, or mortices cut in these legs. Then pullies,
as marked (F, F,) in Drawing Number 2, are fixed to each corner, and the
line (which may be made of catgut, metallic chain, or cord of hemp or hair,
but most conveniently of catgut) is conveyed by two pullies in the middle part
of each end down to the weights. The 'weights may be made of iron,
steel, brass, copper, or lead, but most conveniently of lead. In many cases
one weight will be found sufficient, but in heavy furniture several weiglits
may be necessary, but their application is the same. A spring may be used
in lieu of one or more weights, but the suspension by the weight is preferrable.
The bolts, which are to be inade of hard wood, brass, iron, copper, or steel, or
metallic composition, but most conveniently of wood or brass, are to be fixed
at the four internal corners (that is), the inside of the four sliding legs of the
writing desk in Drawing Number 2. The levers, which may be made of
wood, brass, or iron, but most conveniently of hard wood, and the springs,
which may be made of brass, iron, or any other of the common materials
for making springs, or of sufficient elasticity, are next to be fixed in the
chamber or vacancy left. at the top of the knee hole, as explained or
delineated in the Drawing and Plan, Number 2. The levers and springs
are moved by putting the finger to a small trigger marked D in Drawing
Number 2, to be made of wood or any metallic substance, and the operation
of these levers and springs, and which are made in various forms as repre-
sented in the several Drawings and Plans, is to withdraw the bolts from
the racks, which leaves the desk suspended in such manner as a well-bung
window sash is; or a weight may be substituted for springs, as shewn in the
oval Plan, marked C. When the finger is withdrawn from the trigger, the bolts
resume their places in the racks. Thus the Invention is executed, and
when thus made is to be fixed to the desk or other piece of furniture, as
represented in the several Drawings; and the various ways in which it may be

page_text: used upon the same principle is clearly demonstrated by the several Drawings
and Plans hereunto annexed.
The Drawing Number 1, in the said Plan hereunto annexed, represents' a
writing table in a state for business. The desk part A rises to the required
height. The drawers on each side, and marked B, B, and which appear
open, shut into the cases C, C, which again slide under the desk A, and
all is let down together by drawing forward the trigger or pull D, in the
Drawing Number 2, which moves the machinery as there described, drawing
the bolts E, E, E, E, from the recesses in the legs of the desk, and permits
it to descend. The cords, which appear dotted, communicate from the
bottom of the legs through the pulleys F, F, F, F, on each side, to the
weights G, G, to assist the ascent and prevent the too quick descent of the
desk; or it may act without any weights, by carrying the cords fastened
to the legs to the roller Z, worked by winch, observable in the Plan to
Number 2, and there coloured blue, but which is found to answer not so well
as the ballance.
.
a
The. Drawing Number 3 exhibits the machinery to rise the pigeon holes
into their situation, as in Number 1, or lower them as they appear in the
Drawing Number 4. The manner of its acting is as follows:-The desk part
(in the Drawing Number 1) being up, the trigger H (answering to H in the
Drawing Number 1) is drawn to the left hand, which removes the bolts
K, K, from the recesses L, L, discoverable in the pigeon holes above.. Then,
by drawing forward the cord or pull M, which acts by the pulley L, the.
whole is drawn. upwards together, and the cord or pull M returns to its place
by means of the weight N; the weights O, O, answering the same purposes as
G, G, in the Drawing Number 2. To return the pigeon holes to their
situation as in the Drawing Number 4, nothing more is necessary than
pressing them downwards, and the bolts K, K resume their situation.
The Drawing Number 4 is a view of the desk when all is closed. The
Drawing Number 5. is a view of a desk only. The difference between
the machinery in that Figure and that in the Drawing Number 2 may be
observed by comparing the Drawings Number 2 and 5, and the Plans to each
as drawn below. The weights act for the same purpose and may be hid by
pannelling. That part colored blue in the Drawing Number 5 and in the
Plan, shews the manner in which one weight P may be used instead of the
two Q, Q. Over this machinery and under the desk is a space for drawers, &c.
The Drawing Number 6 is a view of the same principle of machinery
applied to a chair. By drawing forward the trigger R, the circle S is moved
upon its center, by which means the bolts T, T, T, T, are. withdrawn from the

page_text: catches in the legs, and permit the descent of the seat, as may be seen in the
geometrical plan thereof.
The Drawing Number 7 is a table. The triggers X, X, being pressed
together draw the bolts, colored yellow, from the recesses in the legs, and
permit the descent or produce the ascent, and may be used with or without
weights or spring to ballance it.
The third Figure in the line of Plans is a geometrical view of the machinery
necessary for an oval plan, and is worked by drawing a trigger forward (as in
Number 2) which removes the bolts Y, Y, Y, Y, from the recesses in the
rising legs. The letter A, in the Plan Number 7, represents the manner the
catch acts to the rising legs of a chair or other thing which has a spring
under it, so that a wire may be conveyed to any part at pleasure; B, in the
Plan Number 7, is a bolt on a plate, working by a worm or any other spring.
C shews a spring catch on a plate, which may work by a wheel or or lever.
The sliders draw forward or thrust inward as in D, as most convenient.
The whole may be moved from one trigger or pull placed under the chair,
desk, table, or other article of furniture, or in any other direction. The
position of the triggers, cords, or pulls, may be varied as convenient, but they
are placed in Drawing Number 1 in the most convenient situations, and the
bolts, springs, or catches, may be made to operate in other parts of the
different articles to which the Invention may be applied.
And the said Day Gunby doth hereby declare and affirm, that the par-
ticulars above set forth do contain a full, true, and perfect description of the
nature of his said Invention, and in what manner the same is to be performed
and made.
In witness whereof, he, the said Day Gunby, hath hereunto set his hand
and seal, the Fourth day of August, in the thirty-eighth year of the
reign of our Sovereign Lord George the Third, by the grace of God of
Great Britain, France, and Ireland King, Defender of the Faith, and
so forth, and in the year of our Lord One thousand seven hundred and
ninate night
Signed, sealed, and delivered, by the
within-named Day Gunby, in the
presence of us,
ANDREW LOVERING SAREL,
Surry Street, Strand,
DAY (L.s.) GUNBY.

page_text: AND BE IT REMEMBERED, that on the Fourth day of August, in the
year of our Lord 1798, the aforesaid Day Gunby came before our said Lord
the King in His Chancery, and acknowledged the Specification aforesaid, and
all and every thing therein contained and specified in form above written.
And also the Specification aforesaid was stampt according to the tenor of the
Statutes made for that purpose.
Inrolled the Fourth day of August, in the year of our Lord One thousand
seven hundred and ninety-eight.