US1500562A - Lock for window sashes, etc. - Google Patents

Description

july a. 1,500,562 i H. HOFF LOCK FOR WINDOW SASHES, ETC

Filed July 31, 1922 Patented July 8, 1924.

HERMAN HOFF, OF BUFFALO, NEW YORK.

Partnr l LOCK FOR WINDOW SASHES, ETC.

. Application led July 31, 1922. Serial No. 578,563.

i" To all whom, t may concern.'

` Be it known that I, HERMAN' Horn, ak

citizen of the United States, residing in Buifalo, in the county of Erie and State of New York, have invented new and useful Improvements in Locks for Window Sashes,

&o., of which the following is a specification.

This invention relates to a sash lock which is designed'to prevent unauthorized opening of a sash from the exterior of the building i and also to prevent the sash from rattling in windy weather.

It is the purpose of this invention to provide a sash lock or fastener for this purpose which is comparatively simple and ineXpensive in construction, which can be readily applied to the standard types of window sashes,

as now generally constructed and in which the locking or stop member, when moved out of its operative position remains perma- `nently connected with the bracket upon which it is mounted so that loss of the same will not occur and thus'always retain the same at hand where the same is ready for use in locking the sashes against opening.

In the accompanying drawings: Figure 1 is a fragmentary perspective view of a pair of opposing window sashes and the adjacent part of the window frame equipped with my improved, sash lock or fastener. Figure 2 is a horizontal section, taken on line 24-42, Fig. 1 and showing the sash locked in its operative position. Figure 3 is a similar view `but showing the sash lock in its inoperative position. Figure 4 is l a fragmentary vertical transverse section taken on line 4 4, Fig. 2. Figure 5 is a similar seetion'taken on line 5 5, Fig. 3. Figure 6 is a vertical longitudinal section, on an enlarged scale, taken on line 6-6, F ig..2. Figure 7 is a perspective view of the holder and guide for ,thelocking block showing these membersmade integrally.y Figure 8 is a similar view ofthe stop or locking block equipped with `a guide arm whereby the same is removably supported on the.

guide-l when detached from the holder.V

Figure 9 is a perspective view showing a form of stop guide made separate from the holder.V

Similar characters of reference refer to like parts throughout the severalviews.

runway 11, an upper bar 13, and an upper.

sash having an upright side bar 15 guided in the runway 12 and a lower horizontal'bar 16, which is arranged horizontally in line with the upper bar of the inner sash when both sashes are in their closed position, as shown in Fig. 1.

' My improved sash lock is preferably mounted on the lower end of the upright side bar 15 of the outer sash and adapted to co-operate with the adjacent part of the inner sash for preventing relative vertical movement of these .sashes with reference to each other, so that unauthorized entrance into the building will be prevented.

In the preferred form of this sash lock, as shown in Figs. 1-8, the same comprises a holder which is mounted on the outer sash and a stop block movably mounted .on this holder and adapted to be engaged by the inner sash. This holder preferably comprises a metal plate 17 secured in an upright position to the inner side of the outer sash bar 15 by means of screws 18 or otherwise and upper and lower hooks 19, 20 arranged The Vrelative arrangement of these parts-l is such that when the stop block 21 is in its operative position on the holder the inclined face 23 on the stop block and the upper outer edge of the inner sash will engage with each other if anattemptis made to lower thev outer sash or 'raisel the inner sash, thereby preventing either of these sashes from being opened at this time.

When this stop block is moved out of en` gagement with the holder and clear of the path of the inner sash, no obstruction 1s offered to the free downward movement of the outer sash or the upward movement of the inner sash, so that these sashesumay then be opened. e

Means are provided for conveniently stornection between the same and the holder, so

as to prevent the stop block from becoming displaced and instead retain the same always in a position where the same is available, ready for shifting into its operative position for locking the sashes against vertical movement relatively to each other and preventing unlawful entrance into the building.

In the preferred construction for vaccomlishing this purpose a horizontal bracket 24 isprovided which is connected at its inner end with one side of the base 17 of the holder and formed integrally therewith, this bracket being provided with a horizontal guide way 25 which is T-shaped in cross section and leads to an outwardly opening notch or recess 26 arranged at the outer end of the bracket 24. The stop block 21 is provided on its underside with an outwardly projecting T-shaped guide arm, the enlargement 27 of which is adapted to travel in the guideway 25 when the stop block is moved horizontally toward and from the holder while the reduced neck 28 of this arm is adapted to engage with the notch or recess 26 at the outer extremity ofthe bracket 24 and permit the stop block 21 to be swung outwardly from a position in which it is arranged in the path of the inner sash to a position in which it is out of the path of the sash, as shown by dotted lines in Fig. 1 and by full lines in Fig. 3.

of the sashes from being moved vertically lrelatively to each other. The movement Vof this block toward the side piece ofthe win` dow frame is limited b engagement of the enlargement or head 2 of the guide arm with a shoulder 29 formed between the in.-

ner end of the guideway 25 and the base plateg17, as shown in Figs. 2 and 3. The

movement of the stop b-lock away from the side piece of the frame and out of engage- Ament from the holder may be prevented by a stop device which in its preferred form consists of a locking pin 30 passing through corresponding openings 31 formed in the upper and lower parts o-f the bracket 24 adjacent to the holder, as shown in Figs. l, 2, 4 vand 6. Upon withdrawing the pin 30 the stop block 21 may be moved. by means of its sup-porting arm outwardly along the bracket 24 and thence swung downward to the outer end of this bracket in which its neck 28 and the supporting arm engages with the notch 2 6 and the locking block'arranged Q11@ 0f the path of the Vinner sash, as shown by full lines in Fig. 3, thereby permitting either one ofthe sash to be moved vertically into a more or less open position.

In Figs. 1, 2, 3, 6 and 7, the bracket 24 is shown formedY integrally with the holder base 17. Vhen desired this bracket may be formed separate from the holder, for instance, as shown in Fig. 9, the bracket 32 is formed on a separate attaching plate 33 which latter may be secured kin p-lacebetween the. outer sash independently of the stop block holder, by. screws or otherwise.

In addition to locking the sashes against the. opening movement relatively to each other, means may be associa-ted therewith for preventing rattling of the'sashes under wind pressure when the same are closed.`

The preferred means for accomplishing this consists of two hooks 34 pivotally mounted on the upper edge of the inner sash so as to be capableof swinging into and out of engagement with the coupling pins 35 Vat opposite ends and into andout of a position on opposite sides of the stop block. These two hooks are connected at their rear ends by means of a wrist 36Vwhich is pivoted on a plate 37 secured tothe upper' edge of the inner sash. When both sashes are closed and the two hooks 34 are in engagement with the coupling pins 35 and stand on opposite sides of the locking block 21, as shown in Figs. 1 and 2, the two sashes have their opposing parts held together so'that the same are prevented from rattling under wind pressure, and the locking block 21 is also prevented from being withdrawn from its holder independently of the locking pin 30. Upon, however, swinging the coupling hooks 34 upwardly and inwardly out of engagement from the coupling pins 35, as shown in Fig. 3, the two sashes areuncoupled from each otherand in the absence of the retaining pin 30 therocking block 21 may be shifted into its inoperative position, so as to. permit the sashes to be opened.

In order to permit the stop member 21 to move lengthwise of the guideway this stop member is provided with a notch 38 on its.` rear side 1n line with the flanges forming the guideway 25 on the bracket 24 which `notch is adapted to receive these flanges and rattling noise of the same when subjected to the effects of the wind.

I claim as my invention:

1. A locking'device for relatively movable ion members comp-rising a holder adapted to be mounted on one of said members, a stop removably mounted on said holder and having an inclined face adapted to be engaged by the other member for preventing relative movement of `said members, and a guide which extends laterally from said holder and upon which said stop may be moved for carrying the same out of the path of said opposing member, said guide having a horizontal guideway which is T-shaped in cross section and said stop having a T-shaped arm which runs in said guidevvay.

2. A locking device for relatively movable members comprising a holder adapted to be mounted on one of said members, a stop removably mounted on said holder and having an inclined face adapted to be engaged by the other member for preventing relative movement of said members, and a guide which extends laterally from said holder and upon which said stop may bemoved for carrying the same out of the path of said opposing member, said guide having a horizontal guide-Way which is T-shaped in cross section and has its inner end arranged adjacent to said holder and its outer end arranged at a distance from said holder and provided with a rearward notch in its back, and a T-shaped arm arranged on said stop and adapted to run'in said guideway and to enter said notch for permitting said stop to be moved out of the path of said opposing member and to stand in a position reverse to its operative position.

3. A locking device for relatively movable members comprising a holder adapted to be mounted on one of said members, a stop removably mounted-on said holder and having an inclined face adapted to be engaged by the other member for preventing relative movement of said members, and a guide Which extends laterally from said holder and upon which said stopI may be moved for carrying the same out of the path of said opposing member, said guide having a horizontal guidewvay which is T-shaped in cross section and said stop having a T-shaped arm which runs in said guidevvay and said guidevvay being provided at its inner end With a shoulder Which is adapted to be engaged by the T-shaped arm and prevent its Withdrawal from the inner end of said guide- Way.

4. A locking device for relatively movable members comprising a holder adapted to be mounted on one of said members, a stop removably mounted on said holder and having an inclined face adapted to be engaged by the other member for preventing relative movement of said members and aguidewhich extends laterally from said holder and upon Which said stop may be moved for carrying the same out of the path of said opposing member, said guide having `a horizontal guidevvay which is T-shaped in cross section and said stop having a T-shaped arm which runs in said guideway, and a detent removably mounted on said guideway adjacent to said holder for confining the stop on said holder.

5. A locking device for relatively movable members comprising a holder adapted to be mounted on one of said members, a stopI removably mounted on said holder and having an inclined face adapted to be engaged by the other member for preventing relative movement of said members, and a guide which extends laterally from said hol der and upon which said stop may be moved for carrying the same out of the path of said opposing member, said guide having a horizontal guide-Way which is T-shaped in cross section and said stop having a T-shaped arm which runs in said guideWay, and a detent removably mounted on said guide-Way adjacent to said holder for conlining the stop on said holder and consisting of an upright pin engaging With openings in the upper and lower parts of said guideivay and extending across the path of said T-shaped arm.

6. A locking device for relatively movable members comprising a holder adapted to be mounted on one of said members, a stop removably mounted on the holder and adapted to be engaged by the other member, and means for coupling said holder and said last-mentioned member for preventing rattling comprising lugs arranged on the holder on opposite sides of said stop, and hooks pivoted on said last-mentioned member and engaging said lugs.

HERMAN HOPF.

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