Year: 1886

page_text: Date of Application, 17th July, 1886.
Complete Left, 16th Apr., 1887.
Complete Accepted, 17th May, 1887.
We ISAAC CHORLTON of Blackfriars Street, Manchester in the County of Lanc
Spring Mattress Manufacturer, and GEORGE LAMB SCOTT, also of Manchester, afore-
said Engineer, do hereby declare the nature of this Invention to be as follows:-
Our said Invention relates to mattress frames which also constitute the bed frame
and which carry woven wire, chain or other metallic yielding fabrics or mattress
surfaces. Such mattress frames are usually fitted or formed with dovetail pieces
which enter corresponding dovetail recesses in the bedstead ends or vice versâ as is
well understood so that when put together a complete bedstead and mattress is
produced. In order to effect this fitting together of the frame and ends it is necessary
that the pitch between the dovetails on each end of the frame and the recesses on each
bedstead end should correspond exactly. This however is not always the case and as
a consequence considerable trouble is sometimes experienced in fitting the frames to
the ends. By means of our invention we obviate this difficulty by rendering the side
members of the mattress frame adjustable towards and from each other so that we are
enabled to make the distance between the centres of the dovetails on the ends of the
frames correspond exactly with the centres of the recesses in the bedstead ends and
thus accomodate the parts to any little inaccuracies which may have arisen in the
course of manufacture. This adjustment may be effected in various ways. For
example the angle iron end or bar may be slotted in the direction of its length at the
points where the bolts or screws pass through which connect it to the side members of
the frame and also at the points where the prolongations, studs, bolts or parts pass
through, connecting it to the dovetail castings. By another modification where the
mattress surface and end bars are raised above the level of the side members of the
frame on blocks or parts carried by the dovetail castings we make the said castings

page_text: capable of sliding beneath the said blocks or parts so that the castings can be adjusted
to suit the recesses in the bedstead ends. Instead of the said elevating blocks or parts
we may form upwardly projecting lugs or flanges on the dovetail castings which lugs
carry the angle iron end bar of the mattress at the required higher level. The holes
in the angle iron ends through which the bolts pass to secure the said angle iron ends
to the lugs are slotted so as to permit of the dovetail castings being moved towards
or from each other so as to come exactly opposite to the dovetail recesses in the
bedstead ends as already described. The members of the bedstead frame may be of
angle iron or of a tubular or other suitable section.

page_text: Improvements in Adjustable Mattress Frames.
We ISAAC CHORLTON of 19, Blackfriars Street, Manchester in the County of
Lancaster, Spring Mattress Manufacturer and GEORGE LAMB SCOTT, also of Manchester
aforesaid, 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:-
-
Our said Invention relates to mattress frames which also constitute the bed frame
and which carry woven wire, chain or other metallic yielding fabrics or mattress
surfaces. Such mattress frames are usually fitted or formed with dovetail pieces which
enter corresponding dovetail recesses in the bedstead ends or vice versâ as is well
understood so that when put together a complete bedstead and mattress is produced.
In order to effect this fitting together of the frame and ends it is necessary that the
pitch between the dovetails on each end of the frame and the recesses on each bedstead
end should correspond exactly. This however is not always the case and as a conse-
quence considerable trouble is sometimes experienced in fitting the frames to the ends.
By means of our invention we obviate this difficulty by rendering the side members
of the mattress frame adjustable towards and from each other so that we are enabled
to make the distance between the centres of the dovetails on the ends of the frames
correspond exactly with the centres of the recesses in the bedstead ends and thus
accomodate the parts to any little inaccuracies which may have arisen in the course of
manufacture.
And in order that our said invention may be properly understood we will now
proceed more particularly to describe the same with reference to the accompanying
sheet of drawings.
Fig. 1 of the said drawing is a side elevation.
Fig. 2 a plan of one corner of a bedstead carrying a mattress frame the side
members a of which are capable of being adjusted toward and from each other.
As shown in the drawing the said side members are tubular in section and of metal
but they may be of any other suitable formation or material, for example they might
be of wood. The other side of the mattress frame which is not shown in the drawing
is supposed to lie parallel with the side a. The side a is connected at each corner
to the male dovetail 6 by a plug c which projects from the dovetail 6 and which enters
the tubular side for a sufficient distance as shown. The plug c also passes through the
angle iron end d of the mattress frame, the end d being thus held between the dove-
tail b and the end of the tubular side a. A bolt e passes through the angle iron end d
and the tubular side as shown and secures the parts together. In order to render the
dovetail b and tubular side a capable of being shifted nearer to or further from the
end of the angle iron d so as to accomodate the male dovetails 6 to the position of
the female dovetail recesses in the corner blocks f which are formed upon or secured
to the corner posts g, we slot the angle irons d at the point where the bolts e pass
through and also where the plugs c are situated. The said oblong sloth is shown at
the plan view Fig. 2. By thus allowing adjusting space on each side of the bolts e

page_text: and plugs e the distance apart of the male dovetails b can be adjusted so as exactly to
coincide with the fixed positions of the female dovetails in the corner blocks. By this
means any inaccuracies in the pitch of the dovetails which may have arisen in the
course of manufacture can be set right when erecting the bed.
Fig. 3 is a side elevation of a liedstead and mattress frame corner showing a method
of adjustably connecting the angle iron ends d and sides a in cases where the mattress
surface and end bars are raised above the level of the side members.
In this case the angle iron end d rests upon a block i which sits upon the dovetail
casting, and the end of the angle iron is slotted at as shown at Fig. 4 where the
bolt e passes through so as to permit of the specified adjustment relatively to the sides a
which are secured non-adjustably to the dovetail casting b. We have throughout
spoken of the connection of our improved mattress frame with the corner brackets as
being a dovetail connection, but we do not limit ourselves by using this term as there
are in existence types of bedstead and mattress frame in which the connection is
brought about by meeting surfaces which do not dovetail into each other, as for
example flat meeting surfaces might be used or recessed meeting surfaces which are
not dovetails. In the drawing annexed to the present specification we have shown a
convenient and useful application of our mode of adjusting the mattress sides relatively
to each other but it will be readily understood that we do not confine ourselves to
these applications as the invention is equally applicable to other forms of mattress
frames and bedsteads having sides and ends of formations, sections and materials
different from those particularly. set forth and illustrated.
Having now particularly described and ascertained the nature of the said Invention
and in what manner the same is to be performed we declare that what we claim is :-
In the manufacture of bedstead and mattress frames rendering the side or male
dovetails or other connecting faces adjustable relatively to the fixed points of contact
or attachment ou the corner brackets or posts of the bed, by forming oblong slots in
the end members or lars at the points where the connecting bolts studs or plugs pass
through, substantially as hereinbefore described and shown.
Dated this 15th day of April 1887
DUTTON & FULTON,
1, St. James Square, Manchester,
Agents.