Year: 1885

page_text: Between these projections or lugs on the pivot, I also form a joint or joints with
one end of a link or links.
At the other end of the link or links I form a joint on a connecting rod or rods.
These connecting rods are also jointed to the pistons or plungers.
At the end of each connecting rod I mount friction wheels or rollers.
These friction wheels act on guides fixed in the box.
Around the pivot, when necessary, I form a trough to retain the most suitable
fluid expressly for charging the cylinder.
The action of the pivot, lugs, and cylinder, forming one piece, with the friction
wheels, links, connecting rods and pistons or plungers attached, is such that, during
the opening of the door, the parts forming, the closing and retaining lever advance
along the radial incline of the clip or claw (the latter being charged by the spring)
until the friction wheel passes its point or end, then the lugs, partly of circular
form follow in contact, holding the clip and forming a brake or a retaining power.
During this operation the piston attached to the connecting rod, link, lugs and
friction wheels (together forming a lever of resistance or check) is caused by the
guides to change its position in the cylinder, and a retarding fluid passing through
the inlet valve takes its place.
On the return, or closing of the door, the brake or retaining power passes from
the point of the clip or claw.
The wheel following is received and forced around by the radial incline of the
clip or claw.
But to prevent concussion of the door against the rebate of the door frame, the
lever of resistance or check pressing against its guide will not allow it to close until
the retarding fluid has passed out of the cylinder, and the piston or plunger has
taken its place.
D
"

page_text: spring showing by the dotted lines the position of the mechanism when the door is
closed.
Fig. 2. Same as Fig. 1, showing when the door is open, the brake or retainer
applied.
Fig. 3. Plan of one form of the check or retarding portion, showing by the
dotted lines the position of the mechanism when the door is closed.
Fig. 4. Same as Fig. 3 when the door is open.
Fig. 5. Sectional elevation of Figs. 1 and 3 combined.
Fig. 6 represents Fig. 3, the action of the guide reversed.
Figs. 7 to 12 show by plans and dotted lines, the check action applied to the
pivot of the door, in modified forms of Figs. 3 and 4.
Fig. 13. Sectional elevation in modified form of Fig. 5, as applied to Figs. 1, 9
and 10.
Fig. 14. Elevation of the pivot a, projections or lugs b and n, with friction
roller d, links t, guides w, connecting rod a, and crossplate or top bearing +
attached, as shown in Figs. 1, 5, 11 and 12, and surmounted with a shoe ☑ to
which the door is attached.
In the boss of the shoe ☑, and also in the crossplate + are lubricators ☑.
Fig. 15. Technical diagram of the mechanical action of Figs. 11 and 12.
Figs. 16 and 17 illustrate by plans the application of Figs. 1 to 8, in modified
forms to Double Action or swing door hinges.
Figs. 18 and 19 show two views of the cage i, which is applied in Figs 1 and 2.
Fig. 20. The bolt k and nut of Figs. 1 & 2.
Figs. 21 and 22. Two views of the clip or claw f, as applied in Figs. 1 and 2.
Fig. 23. Detail section of the cylinder o showing valves qq, and escape hole 7,
piston p, and rod u, and the hingeing zz to the box x, which in modified form
belong to all figures of the cylinder.
The same letters or signs indicate like parts in all the Figures.
In a box x which is sunk into the sill of the door to which this invention is
applied, I insert the following apparatus,
3

page_text: On the pivot a which forms the axis by which the door turns, I form projections
or lugs b. Two of these are partly of circular form c. Between these two pro-
jections or lugs b I apply a friction wheel or roller d. These form a lever and
brake, which act upon a radial incline e, formed on one part of a clip or claw f.
At the other part of this clip or claw I form a joint or bearing g. Between the
radial incline e, and the joint of the clip or claw g, I apply a spring or springs h.
The spring or springs are contained in a cage i in which I make a seating j. This
cage is jointed to the clip or claw at f. Through the spring or springs I apply a
bolt kk, on which I screw a nut l. This combined bolt and nut holds and com-
presses the spring or springs into the cage, by taking its bearing m. on the side of
the box to any tention required.
The above is a description of the door-closing and retaining mechanism.
The following is a description of the check action to the spring.
In the same pivot or axis a Fig. 3, and between other projections or lugs n
I form a cylinder o. This cylinder is fitted with a piston or pistons, plunger or
plungers p. It has also an inlet valve q q Fig. 23, and a regulating escape hole 7*
Fig. 23. Between these projections or lugs n on the pivot, I also form a joint or
joints s with one end of a link or links t. At the other end of the link or links t
I form a joint on a connecting rod or rods u. These connecting rods are also
jointed to the pistons or plungers p. At the end of each connecting rod, (when
necessary), I mount friction wheels or rollers v. These friction wheels act on
guides ww fixed or attached to the box x.
Around the pivot or cylinder, when necessary, I form a trough y to retain the
most suitable fluid expressly for charging the cylinder o. The action of the pivot,
lugs, and cylinder, with the friction wheels, links, connecting rods, and piston or
plunger attached; is such that during the opening of the door, the parts forming
the closing and retaining lever Fig. 1 advances along the radial incline e of the clip
or claw (the latter being charged by the spring h) until the friction wheel d
passes its point or end Fig. 2. Then the lugs c, partly of circular form, follow
in contact holding the clip f and forming a brake or a retaining power. During
this operation, the piston p attached to the connecting rod, link, lugs, and friction
wheels Fig. 3 (together forming a lever of resistance or check) is caused by the.
guides ww to change its position in the cylinder o Figs. 4, 8, 10, 12 and a retarding
Huid passing through the inlet valve q takes its place.
On the return or closing of the door, the brake or retaining power Fig. 2 passes
from the point of the clip or claw f. The wheel d following, is received and forced
around by the radial incline e of the clip or claws f Figs. 1 and 2. But to prevent
concussion of the door against the rebate of the door frame, the lever of resistance
or check pressing against its guide w w will not allow it to close until the retarding
fluid has passed out of the cylinder o, and the piston or plunger has taken its
place.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed I declare what
I claim is
1. The spring or springs h acting in the cage i on the clip or claw f substantially
in manner herein described and illustrated by the drawings Figs. 1 & 2 or any
mere modification thereof.
2. The form and action of the projections or lugs b of the pivot a on the end of
the clip or claw f substantially as described and illustrated in Fig. 2 or any mere
modification thereof.
3. The cylinder o attached to the pivot a or axis of the door as herein described
and illustrated in Figs. 3, 4, 5, 6 and 16.
4. The general forms, modes and action of the check mechanism substantially as
described and illustrated by the drawings Figs. 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,

page_text: 5. The combination of the spring and check in inanner described and illustrated
by Figs. 5, 13, 14 and 16.
6. The lubricating shoe ☑ herein described and illustrated in Fig. 14.
7. The lubricating crossplate + or bearing herein described and illustrated in
Fig. 14.
.
8. The lubricator in link t shown in Figs. 9, 10 and 13.
9. The method of lubricating the cylinder by the link t receiving the lubricant
passing over and delivering it on the piston rod, thence passing it into the cylinder
as shown by Figs. 9, 10, 11, 12, 13, 14, 15.
10. The valve seating q formed of the piston packing illustrated in Fig. 23.
11. The mechanical movement set forth and illustrated in the diagram Fig. 15
whereby I obtain increasing and decreasing velocity indicated by a¹ b¹ c¹¹e¹ to a
reciprocating rectilinear motion u by regular or equal radial movements 1, 2, 3, 4,
5, 6 of the lever n pivoted at the point a as directly applied in Figs. 11, 12, 14 to
the piston rod u.
12. The check independently of the spring and retainer, and the spring and
retainer independently of the check.