72,089.--DOOR SPRING.--Rudolph Schrader, Indianapolis, Ind.
I claim 1st, The door-spring, constructed as described, consisting of
the hollow socket, F, placed over the square shank of the door arm: and
provided with the right angular arm, J, sleeve, E, to which the inner
end of the coiled spring, D, is securely fastened, fitting at or
alternating upon the socket, F, and provided with the right angular arm,
I, resting against the post, H, in the case, A, the free end, G, of the
spring resting against the opposite side of said post, all operating as
described for the purpose specified.
2d, The spring, D, operated by means of the right angular arm, J, of the
hollow shank, F, engaging with the outer end, G, of the spring when the
door moves in one direction, and when moving in the opposite direction
engaging with the arm, I, of the sleeve, E, to which the inner end
of the spring is secured substantially as described for the purpose
specified.
3d, The combination and arrangement within the case, A, of the spring,
D, hollow socket, F, having arm, J, sleeve, E, having arm, I, post, H,
and hook, G, operating as described for the purpose specified.
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