US1620705A

US1620705A - Window lock

Info

Publication number: US1620705A
Authority: US
Inventors: Waitch John
Original assignee: FRANK LASAVICH
Current assignee: FRANK LASAVICH
Priority date: 1924-07-05
Filing date: 1924-07-05
Publication date: 1927-03-15
Anticipated expiration: 1944-03-15

Description

March 15,1927. 1,620,705

J. WAlTCH WINDOW LOCK Original Filed July 5. 1924 Patented Mar. 15, 1927.

STATES eanna PATENT easiest.

Jornv warren, or misse e PENNSYLVANIA, A$SIGNOR or ONE-HALF 'ro Farina: LAsAvron; or Laron'rn, INDIANA.

'wrnnow Loan.

Application filed July 5', 1924, Serial no. 724,300. Renewed August 3, 1926.

My invention relates'to window locks, particularly adapted for use in connection with ordinary windows comp-rising a lower and an upper sash.

The primary object of this invention is to provide a window lock which will look a window of the type stated, in either the closed position or in variously adjusted or open positions.

Further objects of the invention are to provide a lock of the class described which may be readily attached to a window of the ordinary construction without defacing the latter in any manner, which is slmple in its construction and arrangement, strong, durable and efficient in its use, attractive in appearance and comparatively inexpensive to manufacture.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention hereinafter disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawing forming a portion of this specification and wherein like numerals of reference designate corresponding parts throughout the several views Figure 1 is a fragmentary front view of t a window provided with a locking device constructed in accordance with my invention.

Figure 2 is an enlarged view of the locking plate with a portion thereof broken away.

Figure 3 is a view on line IIIIII, Figure 2.

Figure 4 is aview on line IVIV, Figure 3.

Referring in detail to the drawing 1 denotes the upper sash and 2 the lower sash of a window of the usual construction.

A vertically disposed elongated metal looking plate 3 is securely fixed to the front face of one of the vertical members of the upper sash l by means of a plurality of screws 4: which engage in respective apertures 5 formed in the locking plate 3. The apertures 5 are countersunk so that the heads of the screws l, will be flush with front face of the locking plate 3.

The locking plate" 3 is positioned at the lower endv of the vertical sash menibcr and has all of its marginal edges bent rearward-'- ly to form the flanges 6, thereby providing ally projects forwardly relatively to the associated sash member. ther permits of the operation of the latching element 8 connection with the locking plate 3 in the manner to be described, and permits of the attachment of the plate 3 without defacing the sash member in any manner.

The locking plate 3 is provided with a plurality of uniformly spaced slots 9. Each of the latter is substantially U-shaped being formed with a centrally disposed depending catch 10, which is depressed to provide a horizontally disposed curvilinear rear face to facilitate its engagement by the latching ele ment 8.

The latching element 8, of the customary well known construction, is secured with its base 11 to theupper edge of the top member of the lower sash 2 by means of screws 12. The cam latch 13 is pivoted, as at 14, to the base 11, and is provided with the usual shifting handle 15.

When the cam latch 13 is disengaged, the upper sash 1 may be lowered or the lower sash may be elevated to any position desired. By manipulating the cam latch 13 to engage the adjacent catch 10 of the locking plate 3, the window sashes 1 and 2 will be securely clamped together and locked in the adjusted position. i

The curvilinear rear face of the catch 10 corresponds to the curvature of the cam latch 13 and in connection with the clearance 7 facilitates the engagement of the cam latch 13 with the catch 10.

One side edge of the locking plate 3 is integrally formed with a pair of laterally projecting inwardly extending cars 16 adapted to be manually engaged for taking up the The clearance 7 furill] Inn

plan of the upper sash 1 when drawing the latter slightly forward, if necessary, to asa sure the engagementof the cam latch 13 with the catch 10, in the manner above described. It will be obvious that when the locking plate 3 is attached to the left hand sash member, as illustrated, the ears 16 will extend in one direction, and when it is desiredto attach the locking plate to the right hand sash member the plate is constructed to position the lateral ears thereof in the reverse or opposite direction.

What I claim is:

The combination with the upper and lower sash of a window and a curvilinear cam latching element secured to the upper horizontal member of said lower sash, of an elongated vertically disposed locking plate, mounted on one of the vertical members of said upper sash and formed with a plurality of substantially Ushaped uniformly spaced slots, each of said slot-s having a depending catch member extending therein and having its ends spaced from the respective ends of said slots, said catch members having a horizontally disposed convexed rear face corresponding to the curvature of the said latching element, said plate having its marginal edges bent rearwardly forming flanges engaging the front face of said associated upper sash and providing clearance between the front face of the latter and the rear convex faces of said catch members to permit JOHN WAITCH.