IMPROVEMENTS IN SPRING HINGES
Year: 1882

page_text: PROVISIONAL SPECIFICATION left by the said Edwin Pyott Phillips at the
Office of the Commissioners of Patents on the 9th March 1882.
EDWIN PYOTT PHILLIPS of the City Club in the County of Middlesex,
"IMPROVEMENTS IN SPRING HINGES,"
In carrying out this invention I use two pins, a projection upon the end of one,
fitting into a hole in the end of the other and so forming one pin in two separate
and independent pieces. Slots or holes are provided in each pin to carry the end
of a helical spring which is wound round it. Each pin terminates in a socket
attached by a suitable plate to the jamb of the door and part of this socket is
checked down to allow room for the movement of a side pin or projection upon the
centre pin. The door plate which occupies the centre of the hinge is formed with
a socket large enough to hold the centre pins and spring and each end of this
socket is also checked back round one part to allow for the projection upon the
centre pin.
By this means when the door is moved to one side it turns one half of the centre
pin and when moved to the other side it turns the other part of the centre pin.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Edwin Pyott Phillips in the Great Seal Patent Office on the
8th September 1882.
EDWIN PYOTT PHILLIPS of the City Club in the County of Middlesex.
"IMPROVEMENTS IN SPRING HINGES.'
"
In carrying out this invention I use two pins a projection on the end of one,
fitting into a hole in the end of the other and so forming one pin in two separate
and independent pieces Slots or holes are provided in each pin to carry the end
of a helical spring which is wound round it. Each pin terminates in a socket
attached by a suitable plate to the jamb of the door and part of this socket is
checked down to allow room for the movement of a side pin or projection upon the
centre pin. The door plate which occupies the centre of the hinge is formed with
a socket large enough to hold the centre pins and spring and each end of this
socket is also checked back round one part to allow for the projection upon the
centre pin
By this means when the door is moved to one side it turns one half of the
centre pin and when moved to the other side it turns the other part of the centre
pin.
Reference being had to the accompanying drawings in which like letters of
reference represent like parts. Figure 1 is a side elevation and Figure 2 an edge
view of one form of this hinge; Figure 1ª details of Figure 1 and Figure 2* details
of Figure 2. Figure 3 shows the same form of hinge as in Figures 1 and 2 but
with the coiled spring removed; Figures 4 and 5 are two views of a modified
form and Figures 4 and 5 are details thereof A is the main portion of the
hinge which holds the divided pin B¹ B' and the spring C, it is preferably though
not necessarily made of brass, and its shape may vary considerably, as for instance
in Figures 4 and 5. Sockets D D carry the ends of the pin B¹ B³, and a groove'
or hole B is formed in each portion of the pin which takes one end of the coiled
spring C. Upon each portion of the pin is a stud or projection E which fits into
the recesses F which are provided in the ends A¹ and A³ of the main plate and
also in the sockets D' and D². The recesses in the plate are shewn in Figure 1ª
and those in the sockets in Figure 2ª. The pin being in two portions has a
projections B Figure 3 upon one portion which fits into a hole B³ formed in the
other part so that one part can turn independently of the other.
The action is as follows; the plate A is secured to the door and the sockets D¹
and D³ are secured to the door jamb; now suppose the door to be turned towards
the left hand in Figure 2 the projection E upon the lower half of the pin B' being
at the end of the groove F is turned towards the left hand also by A' the groove
F in the lower socket D¹ allowing the projection E to move around in it. The top
portion of the pin B2 however cannot turn towards the left because the recess F in
the top socket D' is turned the other way so E comes against the solid portion of
D3 and is stopped there; the upper half of the pin with the upper end of the spring
remains stationary whilst the lower half with the bottom end of the spring turns to
the left and is wound up and when the door is released the spring in unwinding
brings back the door to its proper position.
In a similar manner when the door is turned to the right in Figure 2 the lower
half of the pin and spring are held whilst the upper portions turn in consequence
of the recesses in A and D' being turned to the right whilst those at the bottom
are turned to the left. This shows the principle upon which this hinge works
through it is immaterial to which side, either pair of recesses is placed so long as
both are not at the same side.

page_text: It will be understood that the shape of the different parts can be varied
without departing from the spirit of the invention; one modification is shown in
Figures 4 and 5 but the action is the same as that already described
Instead of the pin divided as described a single pin or rod having two loose
collars or sleeves upon it and provided with the projections could be used.
Having described this invention and the method of performing the same I wish
it to be understood that what I claim and desire to protect the hereinbefore in part
recited Letters Patent is;
First In a spring hinge the employment of the divided pin B¹ and B' or its
mechanical equivalent in combination with the studs or projections E and
recesses F substantially as and for the purposes set forth and shown.
Second In a spring hinge the combination of the divided pin B' and B' or its
mechanical equivalent with the double action coiled spring C substantially as and
for the purposes set forth and shown.
Third In a spring hinge the employment of the double action coiled spring
substantially as and for the purposes set forth and shown.
Fourth In a spring hinge the employment of the divided pin B¹ and B2 or its
mechanical equivalent substantially as and for the purposes set forth and shown.
In witness whereof I the said Edwin Pyott Phillips have hereunto set my
hand and seal this fifth day of September in the year of our Lord One
thousand eight hundred and eighty two.
EDWIN PYUTT PHILLIPS, (L.S.)