US250479A - Fastener for m eeting-rails of sashes - Google Patents

Description

(Model) S. G. AUSTIN. FASTBNER EOE MEETING RAILS 0E SASHES. No. 250,479. Patented Dec. 6,1881.

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ATTORNEYS.

Darren STATES PAT NT @rrrca SILAS Gr. AUSTIN, OF BOSTON, ASSIGNOR TO ANNIE E. AUSTIN, OF MALDEN, MASSACHUSETTS.

FASTENER FOR MEETING-RAILS OF SASHES.

SPECIFICATION forming part of Letters Patent No. 250,479, dated December 6, 1881.

Application filed May 2, 1881.

To all whom it may concern:

Be it known that I, SrLAs GRANVILLE AUs- TIN, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Sash-Fasteners, of which the following is a full, clear, and exact description.

Figure l is a sectional plan of a window frame and sashes to which'my fastener is applied. Fig. 2 is an enlarged transverse section on the line aac, Fig. 1. Fig. 3 is a front elevation of the locking-plate O as applied to the sash.

Similar letters of reference indicate corresponding parts.

The object of my invention is to provide an improved sash-fastening device which can be easily applied to window-sashes, and constitutes an easily-operated and effective lock for the same.

Referring to the drawings, A represents a window-frame in which the lower sash, B, and upper sash, O, are adjusttd. The partingstrips a, secured in grooves in both sides of the frame B, guide the sashes in the frame, and the cross-bars 0 make ajoint between the meeting-rails of the sash,when they are closed, in the usual manner.

The base-plate D of my fastener is fixed to the upper face of the top rail of thelower sash, B, by screws (1 or other suitable fastenings. From the plate D rise pins or studs 6, which support the spiral springs j, which are coiled around the studs loosely. Said studs 6 also afford a means of fastening the cap-plates g 'by means of screws h,which are threaded into the body of the studs, as shown, said plates 9 serving to protect the internal springand axial joint from dus't,and also act within a corresponding recess in the upper faces of the springcatches E E to hold the annular rib 6, formed upon the lower side or face of said catches, into corresponding recesses cl, formed in the upper face of the base-plate D, in which recesses the ribs 6 are loosely fitted, the joint of c with d. forming the vertical axis on which the springcatohes E E are free to oscillate in a horizontal plane.

(Model.)

The opposite ends of the coiled springsfare seated in hearings in the catches E E and baseplate D, respectively, said springs tending to force .the outer locking ends or arms, i, of the catches inward against the stop k, which rises from the base-plate D, the inner ends or arms, I, of the catches affording means of grasping them to release them from the arrow-headed locking-plate O, which latter is secured to the face of the bottom or meeting rail of the upper sash, O, by screws 0. Said locking-plate Ois not thicker than the parting-strips a or meeting-rail bars 0, and the ends of thelocking-arms t not extending past the face-0f the upper sash, both upper and lower sashes may be raised or lowered their entire length past each other after the spring-catchesE E are released from the locking-plate by their partial rotation, as shown in dotted lines in Fig. 1. Upon opening either sash the stop It will hold the lockingarms *5 of the catches a proper distance apart to cause the beveled edges of said arms 4. to actupon the inclined sides 0 of the arrow-head upon the partial closing of the sashes and automatically open said catches EE, as in dotted lines, and upon a tight closure of the sashes permit their arms 5 to spring in underneath the shoulders o of the arrow-headed lock 0, which movementwill automatically and firmly lock bot-l1 sashes closed.

If the plates D and O are properly adjusted to the sashes, it will be difficult to introduce a thin blade or knife between them to release the fastenings.

The construction of my fastener is such that it can be readily fixed to two light sashes opposite their center vertical dividing-rails, in which position a sash-fastener properly belongs to preserve the symmetrical appearance of the window; and instead of fixing a lockingplate to the upper face of the meeting-rail of the upper sash by small screws, as is fastened the horizontal plate of ordinary window-fastenings, which may be easily forced off, I am enabled to fasten my locking-plate 0 onto the face of themeeting-rail with such large and strongly-holding screws that any attempt to force it off by prying up the lower sash would most likely demolish the glass in the sash and alarm the occupants of the house.

It is evident that, if so desired, a single sprin g-catch, E, may be employed with a baseplate, B, and stop 70 instead oftwo such catches, as shown, in which case the locking-plate 0 would be provided with a single corresponding inclined side, 0, and shoulder 0 bnt I prefer to use the double catch and look, as above described.

Having thus fully described my invention, What I claim as new, and desire to secure by Letters Patent, is-- In sash-fasteners, the combination, with the plate D, having stop 70, recess d, hollow studs 6, carrying loose springs f, the cap-plates g, and the screws h, of the spring-catches E having annular rib c, and outer locking-arms, i, and the arrow-head plate 0, having inclined sides 0 and shoulders 0 as shown and described.

SILAS GRANVILLE AUSTIN.

Witnesses:

WILLIAM AUs'rIN, GEORGE H. BROWN.

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