IMPROVEMENTS IN SPRING MATTRESSES OR BEDS AND BEDSTEADS
Year: 1867

page_text: LETTERS PATENT to Ernest Krieghoff, of the City of Toronto, in the
Province of Canada, for the Invention of "IMPROVEMENTS IN SPRING
MATTRESSES OR BEDS AND BEDSTEADS."
Sealed the 1st November 1867, and dated the 3rd May 1867.
PROVISIONAL SPECIFICATION left by the said Ernest Krieghoff at the
Office of the Commissioners of Patents, with his Petition, on the
3rd May 1867.
I, ERNEST KRIEGHOFF, of the City of Toronto, in the Province of Canada,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
SPRING MATTRESSES OR BEDS AND BEDSTEADS," to be as follows:-
I construct a frame of dimensions corresponding with the mattress or the
bed and bedstead which it is desired to make. The side and end bars of the
frame drop into sockets or corner pieces, and these in the case of a bedstead
carry legs. Sometimes in order to render the mattress, bed, or bedstead more
portable I joint in a similar manner the side bars of the frame. Across the
frame each way laths are applied, they are fixed with screws and nuts, so that
the frame may be readily taken apart; over this frame is another similar
frame, but higher, and the two frames are connected together by coiled springs
passing from frame to frame at each of the intersections of the laths. The
springs are arranged so that they can be readily removed and replaced to
render the mattress, bed, or bedstead more portable; for this purpose the
upper and lower ends of the springs are interlaced with the laths, and then

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Ernest Krieghoff in the Great Seal Patent Office on the
2nd November 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ERNEST
KRIEGHOFF, of the City of Toronto, in the Province of Canada, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Third day of May, in the year of our Lord One
thousand eight hundred and sixty-seven, in the thirtieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Ernest Krieghoff, Her special licence that I, the said Ernest Krieghoff, my
executors, administrators, and assigns, or such others as I, the said Ernest
Krieghoff, my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN SPRING
MATTRESSES OR BEDS AND BEDSTEADS," upon the condition (amongst others)
that I, the said Ernest Krieghoff, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same to be
filed in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Ernest Krieghoff, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say :-
I construct a frame of dimensions corresponding with the mattress or the
bed and bedstead which it is desired to make. In the case of a bedstead the
side and end bars of the frame drop into sockets or corner pieces which carry
legs. Across the frame each way laths are applied, they are fixed with screws
and nuts so that the frame may be readily taken apart; over this frame is
another similar frame, and the two frames are connected together by coiled

page_text: annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a plan view and Figure 2 a side view of a mattress or bed
constructed according to my Invention. In these Figures a is the upper and
6 the lower frame of which the mattress is composed; each frame has laths c
applied across it in both directions, the laths intersecting one another at right
angles; the laths may be either of wood or of iron, and are according to my
Invention fixed at their ends to the outer bars of the frame with screws and
nuts, so that the frame can readily be taken apart; but when portability is
not an object they may be fixed by rivets. When the laths are of iron a
padding of felt should be inserted between the laths at the points where they
cross one another to prevent them rubbing against one another, and thus
noise will be avoided.
In the case of a spring mattress or bed the outer bars of the frame are by
preference made of the same materials and dimensions as the other laths
between the upper and lower frames at each of the intersections of the laths
are coiled springs d, d; the manner in which these springs are fixed to the laths
is more clearly seen in the full-size views Figures 3 and 4, Figure 3 being a
plan view, and Figure 4 an under side view showing the intersection of two
laths; the ends of each of the springs are bent inwards, and the upper and
lower ends of the springs are interlaced with the laths, as shown, and then
the ends, which have previously been bent inwards, are inserted into holes
made in the laths to receive them; the springs are thus held securely in
position, and at the same time they hold together the laths.
holding the ends of the coiled springs of a spring mattress
important part of my Invention.
This mode of
or bed is an
When it is desired to take the mattress or bed apart the springs can readily

page_text: be taken away, and the laths and frame can be taken apart by unscrewing the
screw nuts by which the frame and laths are held together.
When it is desired that the bed or mattress should pack into a small space
the side bars of the frame and the longitudinal laths can, as before stated, be
jointed at the centre of their length, the form of joint I prefer to employ
for connecting together the two parts of a lath is similar to an ordinary hinge,
but other modes of jointing together the two parts of a lath may be employed.
When making a bedstead I form the mattress or bed in a similar manner
to that above described, but the sides and ends of the lower frame are formed
of thicker bars, and I connect together the side and end bars by sockets e, as
shown in the plan view of a bedstead shown at Figure 5; the socket pieces e
are formed with or are made to receive legs, as shown at Figure 6, and the
legs or supports may be made either plain or ornamental as desired. When
the bed is required to be made portable, then the side bars of the frame,
and likewise the longitudinal laths, may be jointed at the centre of their
length. Head and foot boards or frames may also be applied to the bedstead.
In witness whereof, I, the said Ernest Krieghoff, have hereunto set
my hand and seal, this 4th day of October, in the year of our Lord
One thousand eight hundred and sixty-seven.
E. KRIEGHOFF. (L.S.)-