US240625A - Sash-fastener - Google Patents

Description

(Model) W. G. VESSELS. Sash Fastener No. 240,625.

Patented April 26,1881.

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WITNESSES 1 OJ. ggflwm ATTORNEY UNITED STATES PATENT" OFFICE.

WVILLIAM G. VESSEL S, OF KENTLAND, INDIANA.

SASH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 240,625, dated April 26, 1881.

Application filed February 1, 1881. (ModeL) To all whom it may concern Be it known that I, WILLIAM G. VEssELs, of Kentland, in the county of Newton and State of Indiana, have invented certain new and useful Improvements in Sash-Locks; 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 pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in sash-locks, and relates more particularly to that class of sash-locks which are provided with two spring locking-arms, whereby both sashes are locked or held in any desired position in V the frame by the single device, said arms being operated by a key located between them, which is adapted to throw either one of the spring locking-arms out of engagement with the thimble in the side of the frame, and allowing the frame to be moved either up or down, as may be desired.

The object of my invention is to provide a durable lock of the type above described, which will be simple in construction, economical in manufacture, and readily secured to the side of any window-frame; and with these ends in view my invention consists in certain detailsin construction and combinations ofparts, which will be more particularly described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view, in perspective, of my look as applied to a window-frame. Fig. 2 is a vertical section of the lock. Fig. 3 is a view of the under side of the same. Fig. 4 is a view of the key, and Fig. 5 a modification of the same.

Arepresents the frame of a window, having a mortise of sufficient depth formed therein to receive the lock and allow for the backward movement of the springs B when operated upon by the key 0.

The plate D is made of cast or wrought metal, having its ends a a bentat right anglee to its length, thereby adapting it to fit snugly in the mortise in the frame and support and hold the plate firmly in position. The plate D is provided with two oblong slots, 0, arranged diagonally opposite each other at the ends of the plateD, through which slotspass the locking-bolts d. The locking-bolts are secured in any desired manner to the springarms F, which are secured in reverse order to the back of plate D-that is to say, the springs are rigidly secured to opposite ends of the plate D, and the free end h of one spring and the rigid end it of the other spring being located at the same end of the plate D. When the plate is made of wrought metal, washers l are interposed between the plate and the spring-arms, to separate them a sufficient distance to allow the key 0 to be moved lengthwise and placed in its operative or inoperative position. metal, steps or projections can be formed on the plate and the springs secured thereto. The spring locking-arms are separated by a distance equal to the diameter of the key, so as to allow the shank of the key to turn freely without impinging on the springs, and to allow the key to be easily slid in or out when it is desired to lock or unlock the window-sash.

The key 0 is T-shaped at its outer end, and is provided with two arms, I, which are flattened on their upper surface and abut against the under side of the spring-arms, while the un-' der surface of said arms l is rounded, as at on, so as to allow the key to be turned easily, and also while one arm is lifting under the spring the other is acting as a raisin g-fulcrum, which lessens the arc. The crank end of the key has to be turned to release the lockingbolt from engagement with the thimbles in the sash. The key then passes through an opening in the bent end a of plate D, and is then bent at right angles to the frame and passes out through a vertical slot, 1, in the windowbead H, in which the crank-arm of the key is operated. A short horizontal slot leads from the vertical slot a sufficient distance toward the body of the lock to allow the crank-arm of the key to be slid therein and retained in place, thus locking both sashes, and preventing either the upper or lower sash being opened. To unlock the sash the crank-arm has to be slid back until it reaches the vertical slot, when either the upper or lower sash can be raised or lowered at will.

If found necessary, wedges may be introduced into the vertical slot, thus closing the outer opening of the horizontal slot, and pre When the plate D is made of cast venting the crank-arm from reaching the vertical slot, which it is necessary to do in order that the device may be operative; or the key may be divided into two parts, as shown in Fig. 5.

Theend 0, after passing through the opening g in the bent end a, is made with a square shoulder, i, which fits snugly in a corresponding recess, h, formed in the crank-arm P of the key. The crank-arm P can be removed when it is desired to hold the windows in locked position.

The lock is applied to the framejust at the meeting-rails ot' the sashes-one bolt opposite each sash-and is secured by screws, and also by the beads, which pass over it and bind it firmly in position.

To operate the device it is only necessary to draw the crank-arm of the key out of the horizontal slot into the vertical slot, and to raise or depress the crank-arm, which forces the bolt out of engagement with the side of the sash, and allows the upper sash to be lowered or the under sash to be raised, as desired.

The fastener can be placed on either the right or left side of the window by simply turning it upside down and securing in place, as described.

Thimblesf, placed at suitable distances apart, corrugated metal strip, or any of the wellknown devices, can be placed in the side of the sash,into which the spring-bolts work but it is only necessary that one thim ble on each sash should be used, and they to register with the bolts when the windows are in closed position, as the pressure of the bolt against the side of the sash will be sufficient to hold the sash in any position desired.

The slotin the bead, through which the crankarm of the key passes, may be fitted with a metal plate, 70, having openings, corresponding to the slots heretofore described, which will prevent the head from undue wear, and also present a more neat and finished appearance.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a sash-lock, the combination, with two parallel spring-arms, each having a bolt secured to its free end, and the bolt on one arm located near the fixed end of the other arm, of an oscillating key located between the springarms and parallel thereto, said key being provided with two arms, which extend beneath the central portions of both spring-arms, and serve to retract either of said bolts, substantially as set forth.

2. In a sash-lock,the combination, with a plate provided with bent ends,one of said ends having an opening through which. the key passes, of a vertical slot in the window-frame, in which the crank-arm is operated, and a small horizontal slot passing from the center of the vertical slot toward the body of thelock, into which the crank-arm is moved when it is desired to retain the windows in a locked position, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 22d day of January, 1881.

WILLIAM G. VESSELS.

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