US325909A - Lock-hinge - Google Patents

Description

(No Model.)

A. R. BROWILJr. 1300K: HI'NGB.

No. 325,909. Patented Sept. 8, 1885.

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ALPHEUS ROBERTS BROWN, JR, OF BOSTON, MASSACHUSETTS.

LOOK-HINGE.

SPECIFICATION forming part of Letters Patent No. 325,909, dated September a, 1885.

' Application filed October 3, 1884. (No model.)

To all whom it may cancer-n:

Be it known-that I, ALPHEUs ROBERTS BROWN, J r., a citizen of the United States, re

siding at Boston, (Somerville,) in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvemenis in Lock-Hinges; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention relates to lock-hinges, so called, in which means are adapted to secure a blind in any fixed position, either closed or partially or entirely open; and it consists in an improved form of hinge whereby the strength of the latter is materially increased, and at the same time protection from ice and snow is afforded the locking lever-latch and the peripherally-notched plate, the action of which will be hereinafter explained.

The accompanying drawings represent, in Figure 1, a side elevation of a blind and blindfastener containing my invention. Fig. 2 is a vertical section of the same with the blind half open, while Fig. 3 is a horizontal section on line 1 2 in Fig. 2. Fig. 4 represents a modification.

In such drawings, A represents the hinge as an entirety, composed of two principal parts, B G, the former being secured to the window-frame as usual, the latter attached to and moving with the blind. In this device, which is adapted to operate as a blind-fastener, I have made several essential improvements as regards the hinge itself, which gives much greater bearing-surface, consequently more strength, and at the same time answers as a complete protection to the operative parts, which, with the ordinary hinge, have hitherto been seriously obstructed in their action and rendered useless by accumulation of snow and ice upon them. These improvements consist in forming and casting a metal plate, D,'secured by bolts or otherwise to'thewindowframe, (represented at E,) while unitedthereto by a short arm or bracket is a circular metal head, F, centrally bored ate, and further provided with while the lips z 13 of the caps settle over the peripheral vertical notches b bf b whose functions are to receive a latch and maintain the blind locked in any desired position, accord ing to the location of these notches, which may be only two in number, and would then main; tain the blind either entirely open or closedQ To complete this hinge and afford means to attach the blind to the fixed portion B, I have constructed the pieceG with acircular recessed 6c head, G, whose interior diameter is equal to or slightly greater than the extreme diameter\ of the head or disk F. This cap contains a central stud or pintle, c, which fits into the l hole a, before mentioned, in the head F. Furthermore, a short slotted arm, (1, open at the bottom, unites the cap G to the plate H, which is firmly screwed to the blind. The slot 6, formed in the arm d, contains a spring-actuated latch, f, pivoted at g to the lower part of the arm d, and is operated by a lever, h, located upon the inside of the blind; hence the latter, when closed, cannot be opened from without-a decided advantage. The upper hinge, A, is similar to the lower, with the exception that the peripheral slots on the head F are omitted, as well as the lever and latch, as those-parts on the lower hinge are fully sufficient to effectually lock the blind and hold it in any desired position.

To adjust the two parts of the hinges A A together or to hang the blind, the two pintles c c are centered over the holes bored in, the heads, when the blind is allowed to drop, the pintles sliding into their proper places,

periphery of the heads, concealing the slots b b, &c., and preventing the action of the weather on anypart thereof. It is evident that the lips M materially aid the pintles in supporting the blind, while the top face of the headsF F and the bottom of the recesses j j in the caps G G form a secure bearing for the blind upon which to rest. After the blind'hasbeen hung depression of the lever h against the tension of the spring which actuates the latch disengages the nose of the latter from any one notch, when the blind may be moved. The lever is k, then released, when the latch again enters a slot to maintain the blind fixed in that position until further movement is desired.

I have formed the nose of the latch and the slots which it engages frustums of pyramids in cross-section that as wear ensues the latch shall always tightly fit said slots, and no rattle or motion of the blind ensues when locked.

5 I do not desire to be limited to the precise construction as heretofore premised, by which the two heads F'G are united when the blind is hung, and in Fig. 4 of the drawings I have represented a modification, in which the pintle c is formed integral with the lower head, F, and projects upward into the hole a, bored in the head G. This effectually prevents any moisture from collecting in the hole a, which might occur in case the parts were constructed as shown in Fig. 2 and affect opening or closing of the blind. In this modification the notches and latch are used, one of the former, I), being shown. The object of Fig. 4 is simply to illustrate the inversion of the parts a e, no other change being made or required.

M I am aware that it is not broadly new to pro- .vid'ea hinge with a spring-latch catching into one of a series of notches to lock the hinge open. I am further aware that it is not broadly new to provide a hinge with two disks or a head and cap, one of said parts inclosing the other to strengthen the hinge, and the said parts being also connected by a pintle and recess. I do not claim, broadly, either of these 0 constructions and combinations; but

I claim 1. In a blind-fastener, the combination of a head and a cap that incloses it with a pintle formed on one of said parts and fitting into a 5 recess in the other, and a latch attached to one of said parts and catching into a notch in the other, the flanges of the cap and the periphery of the head serving to take the strain from the pintle, substantially as set forth. 4o

2. In a blindfastener, A, the combination, with the recessed cap G, pintle c, and slotted 7 arm. (1, of the inelosed head F, with peripheral slots 1) b, the'spring-actuated latch f, and

lever h,' combined to operate substantially as 5 set forth.

In testimony whereof I afiix my signature in presence of two witnesses. ALPHEUS ROBERTS BROWN, JIL.

Witnesses:

H. E. LODGE, 1 A. F. HAYDEN.

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