US1188785A - Door-latch. - Google Patents

Description

`C. HOWE.

noos LATcH. APPLICATION FILED DEC.23. 1914.

Patented June 27, 1916.

.ET-IUE- Rall:

A. ...um-any1( Y 4 CLEMENT Hown, or' PLAINFIELD, Nnw JERSEY.v

DOOR-LATCH.

Specification of Letters Patent.

Patented J une 2?, 1916.

Appli-cation led December 23, 1914. Serial No. 878,663.

To all whom t may concern Be it known that I, CLEMENT Hows, subject of the King of Great Britain, residing at Plainfield, in the county of Union, State of New Jersey, have invented certain new and useful Improvements in Door-Latches; 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. v

This invention relates to improvements in latches and has particular reference to operating means therefor.

@ne object of the invention is to provide simple and novel means for retracting the olt.

Another object is to provide a latch bolt operating means in which the knob spindle is reciprocated through the latch casing instead of being turned as in the ordinary structure.

Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawings.

In the drawings: Figure 1 is an edge view of a latch casing equipped with my invention, Fig. 2 is a side view of the lock casing having the side plate removed, and Fig. 3 is a horizontal sectional view on the line 3 3 of Fig. 2.

Referring particularly to the accompanying drawing, l0 represents the casing of the latch on which is disposed the latch bolt 11. A spring 12 has one end properly anchored against one wall of the casing and the other, end disposed in a notch in one side of theA bolt, this spring normally throwing the bolt so that its beveled nose projects through the face plate of the casing. Extending transversely through the square openings 16 in the sides of the casing is a square spindle 13, the opposite ends of which are provided respectively with the knobs 14 and 15. Projecting from one side of the spindle, on the portion within the casing, is a pin 17. On the inner end of the latch bolt is a rearwardly and downwardly extendingV plate 18 beneath which the pin 17 is disposed.

It will thus be seen when the knob 14 is pushed toward the door, that the spindle will be forced through the other side, causing the pin to engage the under inclined face of the Vdownturned member and retract the bolt. TWhen the knob 15 is grasped it is pulled away from the door so that the spindle slides through the casing accomplishing the same result by the engagement of the pin with the spindle of the' downturned member. It will be noted that the downturned portion of the latch bolt is disposed close to the opening 1G so that the spindle moves against one side edge of the said portion.

At the lower side of one of the openings 16 is a rectangular notch 19 through which the pin 17 will move, to allow the shank or spindle 13 to be readily removed from the casing.

Formed integrally with the casing and on the sides of the plate 18 are the guiding ribs 20 and 21, the latter of which is provided with an inturned portion 22 engaging with the shoulder 23 of the plate and limiting the outward movement of the bolt.

What is claimed is:

A latch comprising a suitable easing having rectangular openings in opposite sides thereof, one of the openings having a notch in one side wall, a spring-pressed bolt slidably disposed in the casing and projecting from one edge thereof, a rearwardly and downwardly turned plate carried by the inner end of the bolt to provide a lower inclined face, guiding ribs at the sides of the downturned member, a stop portion on one y of the ribs, a shoulder on the plate adapted to engage the stop portion for limiting the outward movement of the bolt, a squared spindle extending transversely through the casing and disposed in the said openings whereby the spindle is permitted a sliding movement through the casing, and a laterally extending pin carried by the spindle and engaging the said inclined face of the downturned portion of the bolt, said pin being adapted to pass through said notch to permit the removal of the spindle.

In testimony whereof, I affix my signature, in the presence of two witnesses. CLEMENT HOWE. Witnesses:

CHAs. F. BRYAN, EDW. F. GRAY.

@epica of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C.

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