Improvements in Means for Applying Springs to Seats and other Articles.
Year: 1894

page_text: Date of Application, 23th Feb., 1894
Complete Specification Left, 16th Nov. 1894-Accepted, 22nd Dec., 1894
PROVISIONAL DI MUITIO
Improvements in Means for Applying Springs to Seats and other
Articles.
We, THOMAS LATHAM, Barrister-at-Law, JOSEPH WILLIAM HOLLAND,
Manager, and ROBERT OWEN, Fitter, all of The Tubular Bell Works, Coventry,
in the County of Warwick, do hereby declare the nature of this invention to be as
follows:-
The invention consists in a combination attachment and spring by means of which
two parts are connected together in such manner that the one part is caused to rise
and fall with spring action and is controlled to move more or less truly parallel with
the other part to which the spring attachment is connected.
For this purpose we propose to use three, four, or it may be more, of such
combined attachments and springs arranged in any convenient manner.
Each combined attachment and spring consists of two mobile hinge-flaps jointed
together by knuckles and a hinge pin, and also jointed by other knuckles and hinge
pins to another pair of flaps, which latter are fixed, the one, for instance, to the
frame of a seat, and the other to the base frame or support.
To the fixing flaps are fixed the ends of a coiled spring, which acts to force such
fixing flaps away from each other, except as pressure is applied thereto.
These combined attachments and springs, when applied to a seat, and when four
are used, which is the preferred number, may be placed at the corners or at the
sides between the frame of the seat proper and the base frame or support with the
central knuckles or hinges preferably arranged towards each other.
These combined attachments and springs are applicable to various articles,
amongst which may be named chairs, bath chairs, couches, bedsteads, seats for ship
and other saloous, stools, footrests, railway carriage and tram car seats, the bodies
of perambulators, &c.
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Datte VAR MOVIE
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T. LATHAM,
J. W. HOLLAND,
R. OWEN,
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.
:
COMPLETE SPECIFICATION.
Improvements in Means for Applying Springs to Seats and other
Articles.
We, THOMAS LATHAM, Barrister-at-Law, JOSEPH WILLIAM HOLLand,
Manager, and ROBERT OWEN, Fitter, all of The Tubular Bell Works, Coventry,
in the County of Warwick, 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 consists in a combination attachment and spring by means of which

page_text: two parts can be connected together in such manner that the one part is caused to
rise and fall with spring action and is controlled to move more or less truly parallel
with the other part to which the spring attachment is connected.
The invention is illustrated in the accompanying drawings, in which:―
Fig. 1 is an elevation and Fig. 2 is a plan of two parts of a seat connected
together by four of our improved spring attachments.
Fig. 3 is an edge view and Fig. 4 is a plan drawn to a larger scale, of the flaps
of our improved spring attachment opened out and separate from the spring.
Fig. 5 is a plan and Fig. 6 is a vertical section drawn to a larger scale than
Figs. 3 and 4, showing the attachment provided with a coiled spring fixed rigidly
thereto.
Figs. 7 and 8 are similar views to Figs. 5 and 6 showing a coiled spring removably
connected to the attachment.
Fig. 9 is an edge view and Figs. 10 and 11 are opposite face views, showing
another slight modification.
Fig. 12 is an edge view of the same partially in section showing the flaps opened
out to their fullest extent, and
Fig. 13 is an edge view of the two central flaps of the same when compressed
Bomewhat towards each other.
Fig. 14 is a face view and Fig. 15 is an edge view of our improved spring
attachment fitted with a different form of spring from that shown in the previous
figures.
it
In carrying the invention into effect, we propose to use three, four, or
may be
of such combined attachments and springs arranged in any convenient manner.
In Figs. 1 and 2 we have shown four of them connecting the movable frame A of
a chair to the base. B.
more,
Each combined attachment and spring, consists of two mobile hinge flaps a a
jointed together by knuckles a¹ and a hinge pin b, and also jointed by other
knuckles a and hinge pins d to another pair of flaps cc, which latter are fixed, the
one, for instance, to the frame A of a seat, and the other to the base frame or
support B, as shown at Figs. 1 and 2.
According to the arrangement shown at Figs. 1 to 8, the ends of a coiled spring e
are fixed to the fixing flaps cc, which spring acts to force such fixing flaps cc away
from each other, except as pressure is applied thereto.
In the construction shown at Figs. 1 to 6, the spring e has each of its ends formed
with a central eye e¹, which, by rivets c¹ c', are rivetted to the flaps c c.
In the construction shown at Figs. 7 and 8, the ends of the spring e are formed
into complete rings, which are sprung over claws or hooks cast on the
flaps c c.
The attachment shown at Figs. 9 to 13 is constructed and fitted similarly to that
shown at Figs. 1 to 6, but is provided with stops a³ to limit the action of the flaps a a
and ensure their being always in proper position to secure the correct action of the.
springs. The flaps a a are also strengthened by the addition of ribs a' along their
curved edges.
In the modification shown at Figs. 14 and 15 is a springe made of wire or rod
metal bent to form arms e2 bearing against the inner faces of the flaps a a and
having central coils e, by which, and by the hinge pin passing therethrough, the
said spring is connected to the attachment. In this latter case the spring will; by
more or less straightening the flaps a a, act to separate more or less the flaps c c
from each other, whilst by pressure applied to such flaps cc, they will be made more
or less to approach each other.
These combined attachments and springs, when applied to a seat, and when four
are used, which is the preferred number-may be placed at the corners, or
preferably at the sides as shown at Figs. 1 and 2, between the frame A of the seat
proper and the base frame or support B with the central knuckles a¹ a¹ preferably
arranged towards each other.
These combined attachments and springs are applicable to various articles,

page_text: amongst which may be named chairs, bath chairs, couches, bedsteads, seats for
ship and other saloons, stools, footrests, railway carriage and tram-car seats, the
bodies of perambulators, &c.
It will be evident that combined attachments and springs may be constructed
according to the invention of various dimensions and proportions.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. A combined attachment and spring consisting of hinged flaps a a and c c and a
spring e, acting substantially as herein shown and described and for the purpose
stated.
2. A combined attachment and spring consisting of flaps a a hinged together by
knuckles a¹ and hinge pin b, and hinged to flaps c c by knuckles a and hinge pins d,
combined with a spring e, substantially as herein shown and described and for the
purpose stated.
Dated this 10th day
T. LATHAM,
J. W. HOLLAND,
ROBERT OWEN,
By Harris & Mills,
23, Southampton Buildings, London, W.C., Agents.