US727984A - Sash-lock. - Google Patents

Description

PATENTED MAY 12, 1903.v

J. M JVANE. SASH LOCK. APPLICATION FILED AUG. 4. 1992.

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- UNITED STATES Patented May lQ, 1909.

JAMES MAO VANE, OF RIVERSIDE, RHODE ISLAND.

SASH-LOCK.

SPECIFICATION forming part of Letters Patent No. 727,984, dated May 12, 1903. Application filed Augustfl, 1902. Serial No. 118.246. (No model.]

To all whom it may concern:

Be it known that I, JAMES MAC VANE, a subject of the King of Great Britain, and a resident of Riverside, in the county of Provi dence and State of Rhode Island, have invented a new and Improved-Sash-Lock, of which the following is a full, clear, and exact description.

My invention relates to improvements in sash-locks; and one object thatI have in view is the provision of a simple and cheap construction adapted to lock both sashes in either their fully-closed positions or when either or both sashes are opened slightlyfor ventilating purposes.

A further object is to provide an improved lock adapted to be carried by one sash and equipped with independently acting bolts and with a single operating-lever arranged to move the bolts simultaneously to their retracted positions, said bolts being projected to their operative positions by impelling springs and adapted to separately engage with a pulley-stile and with the stile of the other sash. The lever carries a dog adapted to engage with the bolt for the upper sash and in the path of the lever is adapted to drop a detent for holding the lever against operation, said detent being placed in an inaccessible position from an implement in serted between the meeting-rails of the sashes. With these ends in view the invention con-- sists in the novel combination, construction, and arrangement of parts, which willbe hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures. Figure 1 is a vertical sectional view through a portion of a pulley-stile, illustrating the upper and lower sashes partly in elevation and showing my improved lock applied in operative position to the sashes and the pulley stile. Fig. '2 is a horizontal sectional view, on an enlarged scale, through my improved sash-lock and showing it in operative position relative to the pulley-stile and the sashes. Fig. 3 is a vertical section on the line 3 3 of Fig. 2. Fig. 4 is a sectional plan View similar to Fig. 2, showing the lockingbolts in their retracted positions; and Fig. 5

p the plate 5.

is a vertical cross-section taken in the plane of the dotted line 5 5 of Fig. 4.

In carrying my invention into practice I employ a base-plate 5, on which is mounted the several operating parts of the improved look. This base-plate is provided near one of its side edges with a keeper 6, in which is slidably fitted one of a pair of locking-bolts 7 8, the same being arranged at right angles to each other, as shown by Figs. 2 and 4, and adapted to extend beyond a side edge and an end edge, respectively, of the base-plate. The bolt 7 is provided at its inner end with .alongitud-inal slotted or forked. portion 9,

in which is arranged a guide pin or stud 10, that is fixed to the base-plate 5 and lies in alinement with a keeper 6, whereby the stud and the keeper cooperate in limiting the bolt 7 to an endwise movement. This bolt '7 is normally projected to its active position by a spring, the same being preferably in the form of a leaf or wire spring 11, which is fastened at one end to the base-plate by a 4 stud or pin 12 and is arranged to be held in position by a stop-stud 13, the free end of said spring 11 engaging with a notch 14, that is provided in the lower edge of the bolt, as shown by Fig. 5, whereby the spring is arranged to normally impel the bolt to the position shown by Figs. 2 and 5. The other ibolt 8-is provided with a square body 8,

adapted to fit snugly upon the top fiat face of In this square body of the bolt are provided longitudinal slots 15 15 which are engaged by the guide studs or pins 16,

fastened to the base-plate, thus limiting the bolt 8 to a reciprocating movement in a path at right angles to that of the bolt 7. This bolt 8 isfurthermore provided with a slot or recess 17 in that edge thereof which lies next to the base-plate 5 and shown more clearly by Fig. 3, and in this slot or recess is loosely mounted the slotted or forked portion of the bolt 7. (See Figs. 2, 3, and 4.) The bolt 8 is projected to an active positionby means of a spring, which in this instance is in .the form of a coiled spring 18, having'one end attached to the bolt, as at 19, and its other end secured to the baseplate in any suitable way--as, for example, by the pin 20. (Shown by Fig. 3.) It will thus be seen that the bolts 7 8 are independent of each other and that they are normally projected to their operative positions by separate springs.

21 designates a post which is fastened to the base-plate preferably at a point-adjacent to the leaf-spring 11, and on this post is fulcrumed an operating-lever which is adapted to retract both of the bolts, although this lever does not interfere with the independent action of -the right-angularly-disposed bolts. The lever herein shown is in the form of a bell-crank 22, fulcru med at one of its corners on the post 21, said bell-crank being of skeleton formation and arranged to overlap the bolts 7 8. The skeleton construction of the bell-crank lever forms an enlarged opening or space 23 therein, and one side of this bellcrank is in engagement with a stud 24, that is fastened to the bolt 7, while another side of thebell-crauk has an abrupt shoulder 25, adapted to engage with astud 26 on the bolt 8. The bell-crank is provided with a fingerpiece 27 at one corner, and this finger-piece is arranged to project through a slot 28, which is provided in a casing 30, that is arranged to inclose the operating parts of the sash-lock. (See Fig. 5.) This casing is preferably of rectangular construction in order that it may rest partly upon the base-plate 5 and be secured thereto at one edge, as at 29. The opposite side edge of the casing is extended, as at 31, to embrace the edge of the base-plate and to be fastened thereto, as shown by Fig. 5, and this side of the casingis provided with an oifstanding lip or flange 32, the same lying immediately below the slot 28 and the projecting thumb-piece 27 of the bell-crank lever. The casing is removably fastened to the base-plate, and in applying the improved sash-lock I prefer to first secure the baseplate and its attached parts to the lower sash by means of the screws 33, which are shown by Fig. 3, after which the casing is adjusted so as to inclose the operating parts of the lock.

34 designates a dog arranged to rest upon two of the side bars of the skeletonized bellcrank lever 22, the said dog being pivoted directly to one arm of the lever by a pin 35. The free end of the dog is notched to form the shoulders 36, one of which is adapted to lie in the path of the stud or pin 24 on the bolt 7. A spring 37 is attached at one end to the bellcrank lever 22 and at its other end to the pivoted dog 34, said spring acting to normally draw the shouldered end of the dog away from the pin 24 in order that the latter may be projected by the spring 11; but when the bellcrank lever is in its normal position one of the shoulders of this dog lies in the path of the stud 24 and prevents the inward movement of the bolt 7. (See Fig. 2.)

The casing 30 supports or carries a detent 38 directly above the lip or flange 32, said detent being pivoted at one end to said casing, as at 39, and provided with a lockingshoulder 40. (See Figs. 1 and 2.) This detent is adapted to remain lowered for its shoulder 40 to extend across the slot 28 in the easing and to lie in the path of the projecting thumb-piece 27 of the bell-crank lever. The detent lies directly above the flange 32, so that access cannot be obtained to said detent by thrusting an implement between the meeting-rails of the upper and lower sashes.

In applying my improved sash-lock I find it necessary to employ a pulley-stile A, having a vertical series of spaced sockets 41. The sash-lock is adapted to be applied to the meeting-rail 42 of the lower sash B at the lefthand corner of the latter, as shown by Figs. 1 to 4, inclusive, and the left-hand stile 43 of the upper sash G is provided with another series of sockets 44. The sash-lock is secured to the rail 42 by the screws 33 in position for the bolt 7 to face the sockets 44 in the upper sash C, while the otherbolt 8 faces the sockets 41 in the pulley-stile A. After the base-plate shall have been secured in position the cover 30 is adjusted to and screwed on the base plate 5, so as to receive the thumb-piece 27 of the bell-crank lever, and the detent 38 is thus brought into operative position to said thumb-piece. The bolts 7 8 are projected by the springs for engagement with the sockets 41 44 in the pulley-stile and the uppersash, respectively, and the impingement of the studs 24 26 against the arms of the lever holds the latter in the position shown by Fig. 2, wherein the th Limb-piece 27 is exposed for access by the operator. The bolts may be simultaneously withdrawn from the pulley-stile and the upper sash by pressing the thumb-piece 27 in one direction and making the arms of the bellcrank impinge the studs 24 26, so as to retract the bolts 7 8, the parts assuming the positions shown by Fig. 4.

It is evident that the upper sash may be pulled down, so as to bring one of its sockets 44 opposite to the bolt 7, while the lower sash may remain in its lowered position, or the upper sash may remain in its raised position while the lower sash may be partly raised, or both the upper and lower sashes may be adjusted by lowering the upper sash and raising the lower sash. In either of these positions of the sashes the bolts 7 8 are adapted to lock both the sashes against accidental or malicious adjustment, because the bolts act independently of each other and engage separately with the pulley-stile and the socketed stile of the sash C. After the sashes shall have been adjusted and the bolts projected into engagement with the sash C and pulley-stile A the detent 38 drops to its lowered position (shown by Fig. 1) in order to lock the lever 22, and in this position of the parts the detent 34 holds the bolt 7 against inward movement, While the other bolt 8 is held in its projected position by its spring and is arranged so that access cannot be obtained thereto for the purpose of shoving back the bolt.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a sash-lock, the combination of a skeletonized lever, a spring-pressed bolt hav-' ing a stud engaging with said lever, another spring-pressed bolt normally impelled in a path at right angles to the first-named bolt and movable to a projected position independently of said bolt and the lever, said independently-movable bolt having a stud arranged to be acted on by the lever which is adapted to simultaneously retract the two bolts, means for locking the lever, and a dog actuated by the lever and arranged to lock the independently-actuated bolt in its projected position.

2. A sash-lock comprising a suitable casing, a pair of bolts disposed at right angles to each other in overlapping relation and slidably fitted in said casing to operate independently therein, separate springs for individually impelling said bolts to their active positions, a bell-crank lever having operative connection with both bolts and adapted to simultaneously retract them, a dog carried by said lever and having operative relation to one of said bolts, and a detent arranged to be interposed in the path of said lever.

3. A sash-lock comprising a suitable casing, a slotted and recessed bolt 8 slidably mounted in said casing, another slotted bolt slidably fitted in said casing in a position at right angles to the first-named bolt and having overlapping relation tothe recessed part thereof, separate springs for individually impelling said'bolts to their active positions, a skeletonized bell-crank lever fulcrumed within the casing and having a projecting thumbpiece, pins or studs on the bolts and engaging with said lever, a dog carried by the lever and having a shouldered end in the path 7 of one of said studs, and a detent pivoted to the casing and arranged'for adjustment into the path of the thumb-piece on said lever.

4. A sash-lock having a casing, a sash-engaging bolt slidable in said casing, a stile-en-' gaging bolt also slidablein the casing, separate springs to individually impel the bolts to r their projected positions, a lever fulcrumed in the casing independently of either bolt,

means wherebythe lever may simultaneously retract both bolts, means for locking the le- JAMES MAO VANE.

Witnesses:

JAMES T. EGAN,- C. WOODBURY'GORMAN.

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