US429364A

US429364A - Sash-holder

Info

Publication number: US429364A
Authority: US
Publication date: 1890-06-03
Anticipated expiration: 1907-06-03

Description

(No Model.)

J. SGHOFIELD.

SASH HOLDER.

No. 429,364. Patented June 3, 1890.

spring c, is secured thereon by rivets or other .ent points of elevation of the lower sash or UNITED STATES ArtNr FFICE.

JOHN SOHOFIELD, OF HOLYOKE, MASSACHUSETTS.

SPECIFICATION forming part'of Letters Patent No. 429,364, dated June 3, 1890.

Application filed September 7, 1889.

To all whom it may concern:

Be itknown that I, JOHN SCHOFIELD, of Holyoke, in the county of Hampden and State of Massachusetts, have invented a new and use'-l ful Improvement in Sash-Supports, of which the following is a full, clear, and exact description.

' rlhe object of my invention is to produce a simple, cheap, and practical device which can be readily applied to new or old sash and which will support the sash reliably at differf lowered adjustment of the upper sash.

lVith these objects in view my invention consists in the construct-ion andcombination of parts, as hereinafter described, and indicated in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a face elevationof a window frame and sash, the molding that forms a 1inish'and covers the Stiles of the frame being removed to expose locking-notches in the stiles, the improved sash-supports being also shown in position on the sash. Fig. 2 is a transverse section of the frame, taken on the line oo. (See Fig. l.) Fig. 3 is an enlarged vertical section of a portion of a windowframe and the improved sash-support in position on a portion of the frame of a sash that is shown broken away to expose the sashsupport; and Fig. 4 is a view in elevation of the sash-support enlarged and detached from the frame, the face, which when in position is adjacent to the window-frame, being shown.

The sash-support consists, essentially, of a bracket-frame C, having a recess or pocket C formed therein for the reception of a platespring c, which latter is coiled or wrapped upon itself at each end, so as to produce volute scrolls e, that have their inner terminals affixed to the pintles f, which project from or through the parallel walls t' of the bracketframe C and are fastened thereto'. The central portion of the plate-spring c is bent outwardly at c', so as to assume an elliptical or circular form, considered edgewise, and a reenforce block d, which conforms to the inner surface of the central curved portion of the Serial No. 323,251. (No model.)

sash-support j ust described is inserted in pairs.

oppositely in suitable cavities excavated in the edges of the upper and lower sash-frames B B,lthe center swells of the springs'c proj ecting beyond the face of the bracket-frame, so as to spring into mating notches a, as before mentioned. The series of notches a are cut in the window-Stiles A in the inner faces of the same at such points as are preferred for the elevation or lowered adjustment of the lower and upper sashes, it being evident that said notches must be equal in width to that of the springs c, so as to admit freely the re-enforced portions c', and that these notches be formed in the parallel grooves usually provided for the upper and lower sash.

In use the operation of the sash-supports is automatic, as the strength of their springs c is so proportioned to the weight of the sash that these willbe reliably sustained, and when a change of position of either the upper or lower sash is desired it is only necessary to push the lower sash up or pull the top sash down until the right pair of notches is engaged by the springs c, when the sash will be locked instantly. lf properly constructed, but a moderate degree of force need be exerted to adjust the sash as stated.

The resilience of the volute scrolls e, formed upon the ends of the plate-springs c, affords a yielding action thereto and permits them to assume the depressed position shown in dotted lines in Fig. 3, and when pressure is relaxed to resume their normal shape, as shown in full lines in the same figure. Danger of breakage is avoided by provision of the scroll ends j ust named, and undue resistance to compression that would result if the ends were not rendered capable of yielding is entirely obviated by the construction of parts as described.

Having fully described my invention, I claim as new and desire to secure by Letters Patentl. A sash-support having a bracket-frame IOO and e curved plate-spring which is coiled at formed near its ends, which coils are secured lo each end into volute scrolls that are attached to by theirterminals to transverse pintles `which Jche bracket-frame, substantially as set forth. are fixed in the Walls of the bracket'franle,

2. A sash-support having a bracket-frame substantially as set forth. which is recessed and has parallel walls on two sides and a plate-spring that-'s curved 011t- JOHN SCIIOFIELD.

Wardly from the bmekebfreme near its mid- VVtnesses: dle and has a, re-enforee bloekseeured thereon DAY CHADWICK, and is further provided with volute coils JOHN CHADWICK.