CERTAIN IMPROVEMENTS IN METALLIC BEDSTEADS
Year: 1852

page_text: PROVISIONAL SPECIFICATION left by Emanuel Wharton at the
Office of the Commissioners of Patents, with his Petition, on the
12th October 1852...
(Void by reason of notice to proceed not having been given within the
time prescribed by the Act.)
I, EMANUEL WHARTON, of Birmingham, in the County of Warwick,
C. E., do hereby declare the nature of the said Invention for "CERTAIN
IMPROVEMENTS IN METALLIC BEDSTEADS "to be as follows, that is to say :-
My Invention consists of improvements in the joints and connecting
parts of metallic bedsteads. The accompanying Drawings shew plans;
elevations, and sections of the same. (Fig. 1) is a section of a joint
composed of tubes, angle iron, and malleable or cast iron corner pieces;
(Fig. 2) an elevation; (& Fig. 3) a. plan of same. Each joint has
two pieces of either malleable or cast iron (A, A, A, A), one of which
is secured on the end of each piece of angle iron, and the two being
brought together form a mitre or abutment on the angle of each joint,
as at (B, Fig. 8). These pieces receive the greatest portion of the
strain from the weight that is upon the bed. To connect the angle
iron to the tube there is a slot cut. in. the latter, the length of which is
equal to the breadth of the angle iron, and the width equal to the

page_text: thickness of the angle iron. A nick (C, Fig. 1,) being made in the
angle iron the same width as the thickness of metal in the tube, the
malleable or cast iron pieces are made fast to the angle iron by being
forced tight on to the ends which pass through them. The end of the
angle iron is then inserted through the slot into the tube and pushed
down the slot, when the nick in the angle iron clips the thickness of the
tube; the inside of the corner pieces being brought into close contact
with the outside of the tube. (Fig 4, & 5) shew an elevation and plan
of a similar joint, save that the position of the angle iron is in this
case reversed when the side of it (D, Fig. 4,) forms a rest for wooden
or other laths. (Figs 6, 7, & 8) shew elevation, section, and plan of
another form of joint, the angle irons forming the sides of the bedstead
are placed with their thin edges uppermost, so that the flat part of the
angle iron rests upon a collar (E, Fig. 7,) formed on the bottom
part of the bedpost. Holes being drilled through the ends of the angle
iron (F, Fig. 8), the end of the lower part of the bedpost is inserted
through them, after which the upper part of the pillar is screwed down
tipon them and holds them secure. This form of joint is also applicable
to posts in one piece, in which case a nut is screwed on the post,
which acts upon the angle iron and holds it firmly together. (Figs. 9,
10, & 11,) shew a joint the same in principle as the last, but the
angle iron is placed flat sides uppermost, the ends resting on the
sides, causing the ends to stand the thickness of the angle iron higher
than at the sides. These angle irons rest on a square collar (G,
Fig. 10,) on the bottom part of the post. The posts may be made also
in one piece with a nut screwed on to the pillar. The diagonal rods
shewn in plans are for the purpose of maintaining the form of the
bedstead. (Fig 12, 13, & 14) is the same in principle as (Fig. 9,
10, & 11), but adapted for tubes instead of bars. The tube is in two
parts connected by a wrought iron screw pin; a nut is secured on to
the bottom of the upper part of the post, which is then screwed on to
the wrought iron screw pin which connects them, and this holds them
and the angle iron firmly together. (Figs 15, 16, & 17) is the same,
save that the position of the angle iron is reversed either at the sides
or ends to admit the laths, in which case the flat of the angle iron rests

page_text: on the collar (H, Fig. 16). (Fig 18, 19, & 20) shew another form of
joint, the posts to be either of tubes or solid iron bars. In this case
that part of the post where the joint comes is formed into a cone (I,
Fig. 18), and as there would not be sufficient bearing in the thickness
of the angle iron alone, collars or pieces of iron are rivetted on to the
inside of the angle iron at the bearing parts, which, together with the
angle iron are bored through conically to fit the cone on the post, and
being slightly forced on to the cone thereby form a firm and simple
joint.