US1155953A - Screen-door fastener. - Google Patents

Description

W. B. MORROW.

SCREEN DOOR FASTENER.

APPLICATION FILED APR. I6. 1915.

Patented 051. 5, 1915.

j'vwmto'o W Evan/M0770 14;

JLUMUIA PLANOGRAPH c0., WASHINGTON. I). c.

scanner-noon FAs'rENER.

To all whom it may concern:

Be it known that. I, lVILLIAMf BRYAN Morrow, a citizen of the United States, residing at Shippensburg, in the'county of Cumberland and State of Pennsylvania,

have invented new and useful Improvements in Screen-Door Fasteners, of which the following is a specification.

This invention relates to improvements in door latches especially applicable to light door frames such as screen doors and the like.

The invention contemplates the provision of a latch which when operatively associated with the door, the latter cannot be opened from the outside, and including a single element for interchangeable engagement with the latch lever at remote points whereby said latch may be locked in operative or inoperative position as desired.

Among other features the invention embodies simplicity in 'constructon, and efficiency in operation, the invention residing in the construction, combination and arrangement of parts hereinafter more fully described.

In the drawing forming part of this application like numerals of reference indicate similar parts in the several views and in which Figure 1 is a transverse section through the door showing the latch in operative position, the door jamb being in elevation. Fig. 2 is a similar view showing the latch in inoperative position. Fig. 3 is a sectional view taken on line aa of Fig. 1. Fig. 4 is a detail view of the latch lever.

In the specific embodiment of the invention illustrated, the same consists of a pair of spaced members 5 and 6 respectively,

fixed to the door jamb A, the inner edge of the member 6 being cut away as at 7 for the reception of the semicircular bulged portion 8 of .the lever 9 to permit the rocking movement of the latter which is pivoted between the members 5 and 6 as shown. The lever at the opposite sides of the bulged portion 8 is adapted to engage the upper edge of the member 6 to limit its movement in opposite directions. A plate 10 covers the members 5 and 6 and is secured thereto in any suitable manner. The forward end of the lever is adapted to enter an elongated recess 11 in the door B, a keeper plate 12 extends transversely across the recess at the lower end thereof and is terminally se- Specification of Letters Patent.

Application filed April 16, 1915. Serial No. 21,901.

'ti'oned" within said recess.

Patented Oct. 5,191 5.

cured to the door in any suitable manner. The forward end of the lever is formed with a depending hook 13 adapted to hook over the'upper edge of the plate 12 when posi- The under side of the hook is beveled as at 14 so as to ride upon the upper edge of the plate 12, on closing of the door, and subsequently gravitate into operative association therewith. With the leverthus positioned within the recess 11, the dog 15 freely pivoted to the jamb A above said lever is swung forwardly into engagement with the projection 16 extending upwardly from the'upper edge of the lever and fitted within a transverse groove 17 in the end of the dog, whereby the lever is effectively held in operative position, and the door securely locked in a manner to prevent of its being opened from the outside.

As clearly shown in Fig. 2 the dog15 is capable of being reversed, or in other words swung rearwardly into engagement with the projection 18 rising from the opposite end of the lever to maintain the latter in inoperative position to permit the door to be opened and closed when desired. The projection 18 has abeveled surface 19 for engagement with a similar surface 20 on the lever 15, so that when the latter is swung rearwardly into engagement with the end of said lever, the latter will be depressed thus lifting the forward end of the lever out of engagement with the keeper plate 12 and locked in inoperative position, the beveled surfaces 18 and 19 obviating any binding action between their respective parts during this operation. The member 5 serves as a stop for the pivot dog 15 limitingits movement in either direction, and-supports the same in operative engagement with the lever.

It is believed that from the foregoing descri tion the nature and advantages of the invention will be readily apparent without requiring a more extended explanation and.

therefore the same has been omitted. It is to be understood however, that various changes may be resorted to when desired as fall within the scope of the appended claim.

What is claimed is A door latch and lock therefor compris ing in combination, a straight lever pivoted at a point between its ends to the jamb of the door for rocking movement, said lever being adapted to enter a recess in said door arranged at a right angle to said lever, a keeper plate secured to the door and eX- tending across the lower end of the recess, said lever having a hooked end adapted to gravitate into engagement with said plate upon entering said recess, projections rising from the upper surface of the lever at spaced points, a pawl freely pivoted above saidlever and having a notched end portion for interchangeable engagement with said projection whereby to maintain said lever in either operative or inoperative position, and means for limiting the rocking movement of said lever.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM BRYAN MORROI/V.

l/Vitnesses F. B. LEBERKNIGI-rr, J. W. MORROW.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C.

Images