Improvements in the Construction of Spring Seats.
Year: 1893

page_text: Date of Application, 2nd Oct., 1893
Complete Specification Left, 2nd Aug., 1894-Accepted, 8th Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Spring Seats.
1, JOHN HARRINGTON, of Claremont House, Ryde, in the Isle of Wight,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
The invention has for its object an improved construction and combination of
parts whereby I produce a comfortable seat combined with noiselessness, economy
of space, durability, and either with revolvability or not as may be desired.
For this purpose I employ springs formed of metal wire or rod having vertical
coils at a short distance apart, said coils being connected together at their upper
parts by a straight part of the wire or rod and having arms extending forward and
backward therefrom at their lower parts.
A spring of the above construction is fixed near the ends of a cross bar fixed
underneath the seat, said springs being in a direction fore and aft of the seat and
the arms extending forward and backward therefrom are connected together in
couples by a transverse rod to each couple. One of these transverse rods is
mounted in bearings or hinge flaps fixed to an under frame and the other is
mounted in shackles, that is to say, in sockets formed in arms hinged to bearings or
hinge flaps also fixed to said under frame. The under frame may be connected
rigidly to the base, or it may be mounted on a vertical pin with capability of
revolving thereon, in which case the bearing surfaces of the pin and socket are
reduced as much as is possible consistent with security and durability, or bearing
balls may be interposed between such parts. The base is formed of trough, Tor
angle iron arms fixed to a plate carrying the vertical pin or directly to the under
frame, and the said arms are provided at their outer ends with castors.
With parts constructed and arranged as above described a seat can be richly
upholstered without being unduly raised from the floor.
Dated this 2nd day of October 1893.
JOHN HARRINGTON,
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in the Construction of Spring Seats.
1, JOHN HARRINGTON of Claremont House, Ryde, in the Isle of Wight,
Manufacturer 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:-
The invention has for its object an improved construction and combination of
parts whereby I produce a comfortable seat combined with noiselessness, economy,
of space, durability and either with revolvability or not as may be desired.
My invention is illustrated in the accompanying drawings in which Figure 1 is
a front view, Figure 2 is a plan, Figure 3 is a side view and Figure 4 is a central
longitudinal section of a spring chair base constructed according to my invention
and Figure 5 is an underside view of parts thereof.
In carrying my invention into effect I employ springs formed of metal wire or
rod having vertical coils a at a short distance apart, said coils being connected

page_text: together at their upper parts by a straight part a' of the wire or rod, and having
arms a³, a³ extending respectively forward and backward therefrom at their lower
parts. A spring of the above construction is fixed near each end of a cross bar b
shown by broken lines, fixed underneath the seat which latter is not shown but may
be of any suitable construction, the said springs are arranged in a direction fore
and aft of the seat and the arms a², a³ are connected together in couples by a
transverse rod a, a, to each couple respectively.
The transverse rod a' is mounted in bearings or hinge flaps e fixed to an under
frame d and the transverse rod a³ is mounted in shackles, that is to say, in sockets
formed in arms e hinged to bearings or hinge flaps e also fixed to said under
frame d. The under frame d may be connected rigidly to the base for it may be
mounted on a vertical ping with capability of revolving thereon in which cases the
bearing surfaces of the pin and socket are reduced as much as is possible consistent
with security and durability whilst if desired bearing balls may be interposed
between such parts. The base fis formed of trough Tor angle iron arms f¹ fixed
to a plate carrying the vertical pin g, or directly to the under frame d and the
said arms are provided at their outer ends with castors.
The pin g may be fixed to the base f by nuts g¹ g² as shown or the nut 9', the
upper surface of which forms the bearing for the under frame d, may be formed as
a collar solidly connected with the ping or other suitable arrangement may be
adopted.
I also use the nut 92 to assist in securing the arms f³ to the plate and in
order to economise space I cut away the side webs of the arms fi to make space
for the nut 9' which fatter grips the inner ends of the arms f¹ between it and the
plate.
With parts constructed and arranged as above described a seat can be richly
upholstered without being unduly raised from the floor.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
The improved construction arrangement and combination of parts substantially
as herein shown and described and for the purpose stated.
JOHN HARRINGTON,
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.