Improvements in Portable Mattress Frames and Mattresses.
Year: 1890

page_text: Date of Application, 30th July, 1890
Complete Specification Left, 30th Apr., 1891-Accepted, 30th May. 1891
PROVISIONAL SPECIFICATION.
Improvements in Portable Mattress Frames and Mattresses.
I GEORGE LAMB SCOTT of 18 Nelson Street Manchester in the County of
Lancaster Engineer do hereby declare the nature of this invention to be as
follows
1
My said invention relates to portable mattress frames adapted and intended to
be laid upon and supported by bedstead frames as is well understood. Such
mattress frames are usually composed of metallic sides and ends or of combinations
of wooden sides and metallic ends carrying an adjustable or non-adjustable elastic
metallic mattress surface of woven wire or of chains, links, laths and the like alone
or in combination with springs as is now well understood. Hitherto the said
portable mattress frames have had their angle iron or steel or other metallic ends
perfectly level in the vertical plane, although in some instances a certain amount of
curve, set or "camber" has been given to them in the horizontal plane with the
object of preventing sagging in the centre of the mattress.
According to my present invention I also curve the said angle iron or steel or
other metallic ends in the vertical plane the curve rising towards the centre of the
mattress and sinking towards cach side so that the elastic metallic mattress has a
convex or hogbacked surface instead of the usual flat surface. By means of this
construction not only is the appearance of the mattress improved and the comfort
of the user increased but also the tendency of the mattress surface to sag in the
centre is still further corrected and restrained. The said hog-backed curve is given'
to the ends preferably in combination with the aforesaid "camber" or set in the
horizontal plane. I am aware that a convex or hog-backed curve has already in
some instances been imparted to angle end members cast in one with or secured
immovably to head and foot ends or in complete bedsteads or bedstead bottoms
but my invention as already stated is applicable only to separate and portable
mattress frames which are self-contained and may be used in conjunction with any
make of bedstead.
Instead of using angle iron or steel ends as is usual and as hereinbefore stated
I may use tubular ends and impart to the same the aforesaid compound hog-back
curve and "camber." When the mattresses surface is composed of chain or laths
or links alone or in combination with springs these may be hooked direct to perfora-
tions in the tube, but in attaching woven wire mattress surfaces to the said tubular
ends I prefer to use a split tube, the split in the tube having projecting lips. The
end of the woven wire mattress surface is passed through the split in the tube and
rivets or pins are passed through the lips holding the mattress securely to the tube and
forming a neat and strong attachment. To connect the tubular ends to the tubular
or other side members | furnish the extremities of the tubular ends with brackets
and I also form the bracket or blocks on, the ends of the side members with hollow
beds or recesses to receive the extremities of the tubular ends the said hollow beds
or recesses being so formed as to assist in maintaining the compound curve and
"camber" imparted to the ends. Bolts or screws are passed through the brackets
on the ends and also through those in the side members so as to hold them together
and thus connect the sides and ends of the mattress frame. The contact faces of
the side and end brackets are made in any suitable or ordinary manner or they
might be made to engage with and hold each other irrespective of bolts screws and
the like extraneous attachments.
Dated this 20th day of July 1000
DUTTON & FULTON,
1, St. James' Square, Manchester, Agents.

page_text: COMPLETE SPELETALIUN
Improvements in Portable Mattress Frames and Mattresses.
I GEORGE LAMB SCOTT of 18 Nelson Street Manchester in the County of
Lancaster Engineer do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement and accompanying drawings :—
My said invention relates to portable mattress frames adapted and intended to be
laid upon and supported by bedstead frames as is well understood. Such mattress
frames are usually composed of metallic sides and ends or of combinations of wooden
sides and metallic ends carrying an adjustable or non-adjustable elastic metallic
mattress surface of woven wire or of chains links laths and the like alone or in com-
bination with springs as is now well understood. Elitherto the said portable mattress
frames have had their angle iron or steel or other metallic ends perfectly level in the
vertical plane although in some instances a certain amount of curve set or "camber"
has been given to them in the horizontal plane with the object of preventing sagging
in the centre of the mattress.
According to my present invention I also curve the said angle iron or steel or
other metallic ends in the vertical plane the curve rising towards the centre of the
mattress and sinking towards each side so that the clastic metallic mattress has a
convex or hogbacked surface instead of the usual flat surface. By means of this
construction not only is the appearance of the mattress improved and the comfort
of the user increased but also the tendency of the mattress surface to sag in the
centre is still further corrected and restrained. The said hogbacked curve is given
to the ends preferably in combination with the aforesaid "camber" or set in the
norizontal plane. I am aware that a convex or hog-backed curve has already in
some instances been imparted to augle end members cast in one with or secured
immovably to head and foot ends or in complete bedsteads or bedstead bottoms but
my invention as already stated is applicable only to separate and portable mattress
frames which are self-contained and may be used in conjunction with any make of
bedstead.
To render my invention clearly understood I have attached hereunto an illustrated
sheet of drawings to which I will now refer :—
Fig. 1 is an end view of a portable mattress frame fitted with ends having
the combined hog back curve and camber constituting part of my present
improvements.
Fig. 2 is a plan of Fig. 1.
Figs. 3 and 4 show the modes of connecting metallic mattress surfaces to the
tubular ends.
Fig. 5 shows the part which I insert into the tubular ends so as to permit of
easy connection between the tubular ends and the corner brackets.
Fig. 6 is an end view of one of the said corner brackets.
Fig. 7 is a side view of the corner bracket.
Fig. 8 shows a slight modification in the part shown at Fig. 5.
Fig. 9 is a perspective view showing the side and end members connected by the
means illustrated in Figs. 5 to 7.
In the foregoing Figs. and first of all in Figs. 1 and 2 the side members which
as illustrated consists of tubes are marked a. The end members are marked b. The
corner brackets are marked e. The mattress surface (indicated by dotted lines) is
marked d. The end members are also shown as consisting of tubes and it will
be seen on reference to Fig. 1 that the ends are curved in the vertical plane so as
to give a rounded or hog backed surface to the mattress surface d. Further by
referring to Fig. 2 it will be seen that in addition the end members are curved or
canbered in the horizontal plane. Thus the ends have a combined hog-back
curve and camber with the result that not only is a curved or hog backed surface

page_text: given to the mattress but also the usual tendency of the mattress to sag in the centre
is corrected and restrained by the outward camber of the ends b.
When the mattress surface is composed of chain or laths or links alone or in
combination with springs the mattress surface may be hooked direct to perforations
in the tubular end as shown in Fig. 3 but in attaching woven wire mattress surfaces
to the said tubular ends I prefer to use a split tube as shown in Fig. 4 the split in
the tube having projecting lips. The end of the woven wire mattress surface is
passed through the split in the tube and rivets or pins are passed through the lips,
holding the mattress securely to the tube and forming a neat and strong attach-
ment. I will now show how the tubular ends are readily connected to the tubular
or other side members. To effect this 1 furnish the extremities of the tubular ends
with plugs or parts e driven in or otherwise fixed in position as shown at Fig. 5..
The projecting portion presents an oblong or flattened neck e and a round head e².
The corner brackets or blocks fof which an example is shown at Figs. 6 and 7 are
secured to the ends of the tubular sides a and are formed with hollow beds or
recesses to receive the extremities of the tubular ends the said hollow beds or
recesses being so formed or canted as clearly shown at Fig. 6 as to assist in main-
taining the compound curve and camber imparted to the ends. The brackets f
have inclined slots into which the oblong necks e¹ of the plugs e are dropped.
Thus the side and end members can be readily and immovably connected together
the strain of the mattress surface only tending to bind the parts more firmly to each
other.
The perspective view Fig. 9 shows the side and end members thus connected
the round head e' preventing the flat neck e' from being drawn endwise out of the
inclined slot.
In Fig. 8 the place of the round head e² is taken by a stud and nut 3 which can
be tightened against the bracket f so as absolutely to bind the parts together when
they have been connected.
Although I have particularly referred to tubular ends and have illustrated
convenient modes of connecting the same to the corner brackets it will be understood
that I may use angular iron or steel ends or ends of other sections having the com-
hined hog-back curve and camber as already described. Such angular or other ends
would be connected or applied to corresponding corner brackets in the usual or in
suitable manners. The side members also might be of an angular or other section
or they might be of wood.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. In the construction of separate and portable mattress frames of the indicated
types forming the end members thereof with a compound hog-back curve and
camber substantially as herein before described and as illustrated in the drawings.
2. In the construction of portable mattress frames having tubular end members,
the method of and means for connecting the side and end members together the
said means consisting of the corner brackets with inclined slot and pocket in
combination with the plugs e connected to the end menibers and having a flattened
neck and head or nut 3 substantially as hereinbefore described and as
illustrated.
Dated this 29th day of April 1891.
DUTTON & FULTON,
1, St. James' Square, Manchester, Agents.