US2977A - Latch ob fasteneb fob window shutters and blinds - Google Patents

Description

UT TED sTATEs PATENT OFFICE ARUNDEL HIIVJLQOF STEUBENVILLE, OHIO.

LATCH on FASTENER ron. wrivnow sHUTTnRs AND BLINDs.

'Y Specification of Letters Patent No. 2,977, datedjFeb'ruary 24, 1843."V

To all 'whom t may concern.'

Be it known that I, ARUNDEL `HILL, of the city of Steubenville, in the county of Jefferson and State of Ohio, have invented certain new anzd useful ImprovementsA in Fastenings for `Window Shutters and Blinds, which are described as follows, reference being'had to the annexed drawings of the same, making part of this specification.

Figure l is a view of the shutters Vclosed and fastened. Fig. 2 represents the shutters opened and fastened back by means of the latches which are dropped into the hooks inserted into the walls. Fig. 3 is a horizontal section through the shutters and fastening. Fig. 4 represents the fastenings for. the upper window shutter. Fig.- 5 represents the spring fastening. i

The nature of this improvement consists in arranging in a permanent manner on the sides of the shutters next the window (when closed) two metallic bars or plates, one on each shutter, on the arc of a circlewhose chord passes through the center of the hingesor pivots on which the shut-ters turn and at such a distance apart as to admit between said bars, when the shutters are closed, a metallic key of the exact thickness to iill theY space between the said bars and in opening the shutters (the key being raised or removed) that the edges of said bars next each other will touch or nearly so whenon the aforesaid chord line, the said point in which the bars meet on the center of the said chord line being the outer extremities of the radii of the segments of curves in which the shutters turn, by which arrangement of said fixed bars and the key inserted between them it will beimpossible to open them Aunless the hinges bars, or other parts give way and recede from the key or center of the window the radial lines on which the bars are placed being in length equal lto half the length of the chord.

The aforesaid key which is marked A in the drawings is made likewise to perform the oiiice of fastening back against the wall the shutter B to which it is attached whenV open and for thisvpurpose it is extended in length beyond the slightly tapered part A2 which comes between the bars E e so as to form also a latch to drop into a hook C fixed in the wall of the building and also to turn on a. pivot projecting from the latch and inserted into a corresponding'aperture in a metal tie plate D secured to the shutter; immediately below or behind the bar E. rlhe bar E is ret-ained at a distance from the aforesaid plate D a little greater than the thickness lof the latch or by metallic blocks studs or pillars inserted between them forming a space in which the latch works freely in being raisedor brought down. The bar E Vis held firmly in the aforesaid vposition by strong screws Vpassed through the bar and plate into the shutter. The bar c and plate Z of the shutter B2 are combined Y arranged and secured in a manner similar to that just described, but instead of having A a key lock latch to turn on a pivot between them, it is simply a plain straight latch FV l used for fastening back the shutter against the wall by being broughtdown in a horif zontal position into thel hook C, inserted into the wall inthe manner represented in Fig. 2. In Fig. l it is represented thrown up in an inclined position as at E in which position it performs no oiiice whatever.

The kind of materials of which thevaforesaid parts are composed-their sizes and' proportions and position o-n the shutters may be varied to suitV the views of the constructor. I however sometimes make the plate about 2% inches long, l inch wide by g of an inch thick, and' the bar the same length and thickness but only inch wide, and the lock latch about 3 inches long el; inch thick and the locking projection about flinch thick.

No mortises are made fitted and secured to them simply by means of common screws which is a great advane tage in the Vuse of these fastenings as the shutters or blinds are not injured or weakened in the use of them. j Y Y i Fig. B, represents a fastening for Vthe shutters of the upper windows in which K is the plate; L the bar; and M the turning latch placed at an angle of about 45 Vdegrees with the window sill on which sillthere is fastened a mortise plate N into which the latch drops for securing the shutters. This in the shutters to Y receive the aforesaid fastenings they being latch alsor secures the shutters back ,against f' the wall when opened byV dropping int-oa Y What I claim as my invention yand which I desire to Secure by Letters Patent is- Fastening Window shutters and blinds by 15 the bars E, e and lock latch AAZ combined and' arranged in the manner set forth; or in any other mode substantially the same in principle. Y'

ARUNL. ILHLL.

Witnesses:

EDMUND MAIER, WM. P. ELLIOTT.

Images