US1320461A

US1320461A - Automatic sash-lock

Info

Publication number: US1320461A
Authority: US
Publication date: 1919-11-04
Anticipated expiration: 1936-11-04

Description

W Z? WW M. A. ERICKSON.

AUTOMATIC SASH LOCK.

APPLICATION mm) MAY 2. 1911.

1 552,46 1 Patented Nov. 4, 1919.

MATTHEW A. ERICKSON, OF NAUGATUCK, CONNECTICUT.

AUTOMATIC SASH-LOCK.

Specification of Letters Patent.

Patented. Nov. 4, 1919.

Application filed. May 2, 1917. Serial No. 165,920.

-- To all whom it may concern:

Be it known that I, MATTHEW A. ERICK- SON, a citizen of the United States, residing at Naugatuck, in the county of New Haven, State of Connecticut, have invented certain new and useful Improvements in Automatic 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 appertains to make and use the same.

This invention relates to new and useful improvements in sash locks and fasteners, and has for its primary object to provide means by which the sashes of a window are secured against movement relative to each other for the purpose of preventing surreptitious opening thereof.

A further object of the invention is to provide a device of this character in which the sashes of a window are adapted to be locked against movement by wind or the like to prevent rattling.

Referring to the drawings,

Figure 1, is a sectional view of the meeting rails of two window sashes showing the device in locked position,

Fig. 2, is a similar view showing the device in unlocked position,

Fig. 3, is a front perspective view show ing the position of the handle when the de- Vice is in its unlocked position; and

Fig. 1, is a detailed View of the bolt and operating member.

Referring more particularly to the draw ings, the reference character 5 designates the lower window sash, the upper window sash being designated by the reference character 6. The meeting rails 7 and 8 respectively of the lower and upper sash are beveled as at 9, and each of said meeting rails is provided with a sleeve or the like, the sleeve in the rail 7 being designated by the reference character 10 and the sleeve in the meeting rail 8 being designated by the reference character 11. This sleeve 11 is provided near its open end with a flange 12 which is adapted to extend throughout the width of the beveled face of the meeting rail, and the interior opening of the sleeve 11 is reduced and screw threaded near its inner end as at 13 the purpose of which will be hereinafter set forth.

The sleeve 10 is provided with a flange 1 1 at its outer end, which flange is adapted to form a means by which the sleeve is secured 1n place in the meeting rail 7 Projecting inwardly of the sleeve 10 intermediate its ends are pins 15, and slidably mounted in the said sleeve 10 is a bolt 16 which is reduced as at 17 to provide a shoulder 18 which is adapted to engage with said pins 15 to limit the inward movement of the bolt 16. The reduced portion 17 of the bolt 16 is provided intermediate its ends with a pin 19, and interposed between the pin 19 and the pins 15 is a coil spring 20 the purpose ,of which is to maintain the bolt 16 at the extent of its inward movement under normal conditions.

Pivoted as at 21 to the outer end of the sliding bolt 16 is a camming handle member 22 which is preferably rectangular in form, and projecting from the upper edge of said handle member 22 are legs or the like 23 the free end of each of which is beveled as at 24. The flange 14: of the sleeve 10 is provided on its outer face with lugs 25 the outer end of each of which is provided with a beveled face, the bevel of which corresponds to that of the ends of the leg members 23. The outer end of the bolt 16 is also provided with an extension 26 with which the handle member 22 is adapted to engage to limit movement thereof in a vertical direction.

In operation, with the parts in the position shown in Fig. 1, it will be seen that upon grasping the handle member 22 and rotating the same, the screw threaded end 27 of the sliding bolt 16 is disengaged with the internal screw threads 13 of the sleeve 11. When these screw threads have been disengaged, by pulling outwardly and upwardly on the handle member 22, it will be seen that the inner end of the sliding bolt I 16 is retracted from the sleeve 11, thus permitting the movement of either of the sashes vertically of the window frame. To retain the parts in this position the beveled faces 24 of the legs 23 are engaged with the beveled faces of the lugs 25 which maintain the handle in its projecting position to prevent any movement of the sliding bolt 16 into the sleeve 11. In this position, however, it will be seen that the inner end of:

the sliding bolt 16 protrudes slightly from the sleeve 10 and that if the meeting rails of the sash are brought together, the protruding end of the bolt 16 will engage the inclined inner face of the meeting rail of the upper sash. By this engagement the sliding bolt 16 is moved longitudinally of the sleeve 10 until the beveled faces 24 of the legs 23 disengage the beveled faces of the lugs 25, whereupon the handle member drops to the positionshown in Fig. 1 and under the influence of the coil spring 20 the sliding bolt 16 is moved into the sleeve 11. If now the handle member 22 be grasped and rotated, it will be seen that the threaded end 27 of the sliding bolt 16 will be engaged with the screw threads 13in the sleeve 11.

By this arrangement it will be seen that when the sashes are moved to closed position within the frame, the sliding bolt 1.6 is automatically projected into the sleeve 11 to serve as an effective lock for the sashes thus preventing the closing of the window without securing the sashes as is a common practice. Y

Having thus described the what is claimed, is:

1. An automatic sash lock comprising the combination with the meeting rails of sashes; of a socket sleeve fitting one rail, a sleeve fitting and extending through the other rail in alinement with the first sleeve, a bolt mounted in a second sleeve and normally held to engage the socket sleeve, said second sleeve having a front plate with lugs thereon, a handle pivoted to the outer end of the bolt and having legs for engaging said lugs to hold said bolt retracted and adapted upon the release thereof to permit projection of the bolt.

2. An automatic sash lock adapted for use with sashes having the meeting rails thereof beveled, comprising a plate having a sleeve fitting the inner edge of and seated within the outer rail, a second sleeve fitted through the inner rail in alinement with the first sleeve, a spring bolt normally projected from said second sleeve, means for retracting the bolt partially and means for holding the bolt in the last-named position in conjunction with the retracting means and adapted to be automatically released by engagement of the bolt with the beveled edge of the outer rail for permitting engagement of the bolt with' the first sleeve when the meeting rails are brought together, as and for the purposes specified.

3. The combination with the meeting rails of sashes having beveled co-actingedges; of a plate fitting one edge and having a sleeve seated in said rail with a smooth porinvention,

tion and a threaded portion inwardly thereof, a plate on the second rail and having a sleeve projecting through the same in alinement with the first sleeve, said second sleeve havin bore portions one larger than the other, a bolt having an enlargement fitting said sleeve and a threaded end adapted to be turned into engagement with the threaded portion of the first sleeve, pins projecting into the second sleeve at the enlarged bore portion thereof to limit the movement of the bolt in projected position by contact with the shoulder produced by the enlarged portion of the bolt, a pin on the reduced portion of the bolt, an eXpansible springbetween said pins within the enlarged bore portion of the sleeve, a handle'pivoted to the outer end of the bolt and having legs at either side thereof, a projection on the bolt to limit the movement of the handle to a position in alinement with the bolt, and lugs on the plate of the second sleeve for engagement by said legs, said legs and lugs having coacting beveled faces and said bolt being slightly projected from its sleeve when the handle is in alinement with the bolt so as to engage the plate and automatically release the handle to permit projection of the bolt when the meeting rails are brought together, said bolt being designed to be turned by the handle to cause threaded engagement of the bolt with the first sleeve to draw the meeting rails together at their edges, with the upper and lower faces ofthe rails clear of obstructions.

l. In an automatic sash lock, a sleeve, a bolt slidable longitudinally of the sleeve, said sleeve being designed to be disposed through the meetin rail of a sash from its outer to its inner e ge, which latter edge is designed to abut the CQIIGSPOllCllIlg edge'of the other sash rail, leaving the top edges of the rails unobstructed, cooperative means carried by the sleeve and bolt for limiting the sliding movement of said bolt in either direction, a handle pivoted to the outer end of the bolt beyond the plate and having leg portions straddling the bolt, means to limit 7 turningof the handle in alinement with the bolt horizontally, and means to release said handle from the last-named position when the legs thereof are disposed in engagement with the plate to retract the bolt.

5. An automatic sash lock comprising a sleeve, a bolt slidable longitudinally on said sleeve, means pivotally secured to the bolt and adapted to inter-engage said sleeve for moving the bolt longitudinally thereof in one direction, a second sleeve for engagement with the first sleeve and having a platelike contact portion, said sleeves being designed to be seated in the meeting rails of sashes intermediately of the to and bottom edges thereof so as to extend in horizontal positions transversely with respect thereto,

means carried by the first sleeve and engag- In testimony whereof, I affix my signature ing With said pivoted means for maintaining in the presence of two witnesses. the bolt 1n one position relatlve to the sleeve, MATTHEW A ERICKSON and means carried by the bolt and engaging the sleeve for moving the bolt to projecting WVitnesses:

position upon release of said pivoted opera- JOHN R. ERIOKSON, tive means. ALBERT J. ERICKSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. Q.