US974566A - Latch. - Google Patents

Description

G. T. J. GILBS.

LATCH.

ArPLIoA'IIoN FILED JANJM. 1910.

974,566. v PatentedNov. 1, 1910.

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CHESLEY T. J. GILES, OF GREENVILLE, SOUTH CAROLINA.

LATCH.

Speccation of Letters Patent.

Patented N 0V. 1, 1910.

Application led January 24, 1910. Serial N o. 539,777.

To all 'whom it may concern:

Be it known that I, CHnsLnY T. J. Gines, a citizen of the United States, residing at Greenville, in the county of Greenville and State of South Carolina, have invented certain new and useful Improvements in Latches, of which the following is a specification.

This invention relates to latches and espe cially to that class of latches ordinarily employed in latching window blinds.

An object of the invention is to provide a latch of improved construction to be stamped up from sheet metal.

A further object of the invention is to provide an improved latch of the gravity type carrying` a gravity lock adapted to automatically engage and lock a blind to and in connection with a stationary staple.

A further object of the invention is to provide an im roved form of staple especially adapted tor use in connection with tne latch.

Vith these and other objects in view, the invention comprisesI certain novel construe.. tions, combinations and arrangements of parts as will be hereinafter fully described and claimed.

In the drawings z-Figure 1 is a perspective view of the improved latch. Fig. 2 is a view of the latch in side elevation with the attaching plate shown in transverse section. Fig. 3 is a view of the blank from which the attaching plate is stamped up. Fig. l is a perspectlve view of the improved staple.

Like characters of reference designate corresponding parts throughout the several views.

The improvedlatch is attached to a blind or other object to be latched by means of a plate 10 composed of sheet material having U-shaped cuts shown at 11 producing ears 12 between which is pivoted the latch member 13 having a corner 14k positioned to engage with the plate and limit the downward movement of such latch.

The latch is provided with a recess 15 adapted to embrace the upstanding part 16 of a staple shown in perspective at Fig. 4: which is preferably provided with feet 17 struck at right angles to the risers of the staple and providing holes or openings 18 to receive screws whereby the staple may be secured to the window ledge or other stationary object.

Pivoted to the latch 13 is a lock 19 curved to form a hook which, when the latch falls by Gravity over the staple 16, is moved laterally upon its pivot and as soon as the point of the hook has passed below the staple, falls by gravity under the staple to lock the latch against lifting.

To lift the latch it is necessary to spring the lock 19 out of the path of the staple 16 and then lift the latch in the ordinary manner.

The lock 19 is proportioned relative to the other parts so that the end of the hook p0rtiou engages against one of the ears 12 to limit the movement of such lock especially as indicated at Figs. 1 and 2.

It will be apparent that the entire action of the latch and lock will be automatic and as the blind is swung to closed position the latch will ride upon the staple in position to drop with the staple within the recess 15 whereupon the lock 19 will engage the staple and by reason of the weight of the latch 13 such lock will be swung laterally upon its pivot to pass the staple and after passing the staple will swing by gravity into locking position as shown.

The lock 19 is intended only to prevent the unauthorized opening of the blind from the outside by means of bent wire or any convenient means ordinarily employed but t0 offer no considerable obstruction to conveiient operation of the latch from the ins1 e.

Vhat I claim is:

1. In a latch, a plate provided with ears outstanding from the plane of the plate, a gravity-operated latch pivoted between the ears, and a gravity-operated lock pivoted to the latch.

2. In a latch, a plate provided with ears, a latch pivoted between the ears and embodying a recess, and a gravity-operated lock pivoted to the latch and swinging across the recess.

3. In a latch, a securing plate, a gravityactuated latch member pivoted to the plate and provided with a recess, and a hook-l shaped lock pivoted to the latch and tending to swing by gravity across the recess.

4. In a latch, a securing plate provided with ears, a latch pivoted between the ears and provided with a recess, a hook-shaped lock pivoted to the latch and tending to swing across the recess and proportioned to engage with an ear to limit the movement of the lock.

5. In a latch, a securing plate having ears stamped from a plate `and. bent upwardly at right angles to the plate in spaced relation, a

latch pivoted between the ears and having a nose adapted for engagement With the plate to limit the movement of the latch, said latch being provided with a staple-receiving orice, and a hook-shaped lock pivotecl adja- CHESLEY T. J. GILES.

Vitnesses JOHN L. FLETCHER, L. L. MORRILL.

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