US104359A - Hinge for blinds - Google Patents

Description

11031-1111. HINGE FOR 'BLINDS.

No. 104,359. Patented June 14, 1870.

screwed into the said latch, as clearly shown infig. 2.

The latch 0 is exposed beyond the open end of the DEWITT C. SAGE, OF'MIDDLETOWN, CONNECTICUT.

Letters Patent No. 104,359,1lated June 14, 1870.

IMPROVEMENT m amass son nnmios on. Schedule referred to in these Letters Patent end making part of the came- To all whomgit may concern Be it known that I, DEWITT 0; SAGE, of Middletown, in the county of Middlesex and State of Connecticut, have invented a new and improved Blind-Hinge; andI do hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the accompanying drawing making part ot'.this specification, in whicb-+ Figurel is an inside view of the improved hinge. Figure 2 is a horizontal section through the hinge and its catch. Figure dis a top view of the hinge when shut. V

Figure 4 is a top view of the" hinge when partially open.

Similar letters of reference indicate corresponding parts in the several figures.

e The object of this invention is to improve hinges for blinds, shutters, and like swinging objects.

The nature of my invention consists in the combination of the camfaced tooth and the spring-latch, the latter arranged in a; tubular socket, and the whole applied to the leaves of a hinge, and operating as hereinafter described.

To enable others skilled in the art to understand my'iuvention, I will describe its construction and op.- eration. e p

a In the accompanying drawing- A A represent the two leaves of a blind-hinge, which I have improved in the following manner:

Atthe hase'of. the elongated eye B of leaf A a tooth, g, is formed, which presents a curved surface. eccentric to the axis of 'pint-le pfand an abrupt shoulder or termination, behind which the latch engages when the leaves, are open, as shown in figs. 1 and 2.

On the back of the leaf. A, and in thesame h0rizont al plane as the tooth g, a tube, 11, is cast, closed atitsouter end and open at its opposite or inner end.

Into this tube at a helical spring, It, is first inserted, after which thelatch O is introduced.

This latch is then held in its tube by means of a knobor finger-piece, b, the shank of which is passed through the oblong slot 0 made through leaf A, and

tube 1), when not pressed against the tooth g, far enough to touch or'nearly touch the cylindrical porfingers for pressing back the latch, and in order ,to do this I-makea recess, a, into or through the leaf A, in

proper position to receive said knob when the hinge is shut, as shown'in fig. 3.

Froin the above description it will be seen that, in the act of opening a shutter having the improved hinge applied to it, the cam-tooth g will-force back the latch O, and that, when the shutter is fully open, the said latch will be forced out by spring it behind the tooth g, and lock the shutter in said position.

By retracting the latch, the shutter can be Closed: I am aware that spring-latches and notched catches,

have been applied to hinges before my invention,'for

holding their leaves at different angles,1but such contrivances are objectionable, chiefly on account of their liability to' derangement by accunndating snow and ice about their locking devices.

I construct into one of the leaves of the hinge a socket for receiving andprotecting the latch and its spring, so that no foreign substance can preventtheir proper action.

-My hinge ls'compact, simple, and not liable to get out of order. I

Having described my invention,

Whatl. claim as newyand desire to secure by Letters Patent, is-.

The latch G and the spring 71, inserted into a socket,

d, formed in the leaf A, in combination with'the cam faced tooth g, formed on the eye B, substantially as described.

D. 0. SAGE.

Witnesses:

Ace. Pu'rmn, Geo. W. Bonne-

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