US1066802A - Sash-fastener. - Google Patents

Description

R. DUNNING.

SASH FASTENBR. APPLIOATION FILED JUNE 1o, 1912.

1,066,802. Patented July 8, 1913.

InVE'nTnP.

Us ATTY @NTE ROBERT DUNNING, OF CINCINNATI, OHIO.

SASI-I-FASTENER.

Specification of Letters Patent.

Patented July 8, 1913.

Application 'tiled June 10, 1912. Serial No. 702,774.

lo all iti/0m it may concern.'

Be it known that l, Renner DUNNING, a citizen of the United States, residing at No. 34122 Burnet avenue, in the city of Cincinn ati, in the county of .llamilton and State of Ollio, have invented a certain newand useful Improvement in SaslrFasteners; and l 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 appertaius to malte and use the same, reference being had to the accompanying drawings and to the refertmce-nuruerals marked thereon.

lvly invention relates to sash fasteners of the type that are provided with a rock-shaft and pawl adapted to exert pressure against the sides of the guide-ways for the sash a nd thereby serve as an anti-rattle device as well as a fastener for holding the'sash in various elevated positions and securing it in a locked position when closed.

My invention pertains more particularly to the general type of sash fasteners shown and described in Letters Patent of the Unitec States, No. 220809, and its object is to so construct a sash fastenerI of the character described as to avoid boring into or mortising the sash rail to receive any part of the operating mechanism located between the ends of the casing, and yet permit the locking pawl to operate who-ily within the guideway for the sash, where it is obscured from view, thus saving labor in applying the fixture and retaining the original strength of the bottom sash rail, and which object is accomplished by means ol novel construction of the rock-shaft and the pawl at the end thereof as will hereinafter he fully described and pointed out in the claims at the end of this specification.

The invention is particularly adapted for Ause on either wood or metal window sash of railway cars, steamships, and similar uses.

In the accompanying drawings, which form a part hereof, like reference niunerals represent corresponding parts in lthe several figures of said drawings, in which- Figure l is a perspective view of a portion of a sash and the adjoining parts of a car window having my improved fastener applied to the lower rail of the sash, which is shown 'in an elevated position. Fig. 2 is an end view of the fastener applied to the sash; Fig. 3 is a rear View of the fastener detached from the sash; Fig. Il; a cross-section through the line .fc-m of Fig. l; Fig. 5 a perspective view of the rock-shaft and pawl removed from its casing and showing a coiled spring surrounding the shaft, and bywhieh spring pressure is exerted to force the pawl in a forward direction; Fig. G a cross section tln-ough line of Fig. 3; Fig. T is a perspective view, and Fig. S an end view of a modified form of the rockshaft and pawl.

ln the said drawingsl 'l represents a post which forms one side of the window frame, and 2 is the window stool.

l represents the inner and 4l the outer window strips spaced apart to form the guide-way 5 in which the sash operates.

7 represents a vertical rail and S the bottom rail of the sash.

Attached to and recessed within the iuside of the strip 53 is a metallic rack E), forming a series of stops l0, the purpose of which will presently appear. The casing of the :fastener consists of a plate l1, having a raised portion 19. forming a hollow shell adapted to receive and conceal a roeleshaft 13 having its bearings in the members llf, 15 of the casing. This shaft extends through one end of the casing and is pro vided with a head 1G, preferably circular in form, one face of which is arranged adjacent to one end of the casing, and from the o posite face of the said head there extends an arm or extension 17 arranged substantially parallel with the rock-shaft 13, but sulliciently out of line therewith to avoid the necessity of cutting into the sash to re ceive the same, This latter arln extends into the guideway and provided at its free end therewithin with a pawl 18 disposed at right-angle, or practically so, to the rock-shaft and adapted to engage either of the stops 1 0, of the rack 9, and hold the sash in a raised position; the free end of said pawl being provided with a projection l) adapted to hook under the shoulder 20 el' the lower of the steps l() and when thus engaged to prevent the raising of the sash from the outside. Around the shaft 13 there is coiled a spring 21 having one end secured to the shaft and the other end bent as shown at Q2 in Figs. l and 5, and Aresting in a depression 23 formed in the back side of the casing so that the tendency of the spring is to force the pawl 18 against the inner face of the rack 9, which in turn presses the sash against the outer strip 4L, and thus prevents rattling of the sash at this point thereof.

. The rock-shaft 13; head'16; arm 17, and pawl 18 are preferably made in a single structure and they may be of the modified form shown in Figs. 7 and 8 or of any other form suitable to the purpose of my invention. From the shell portion 12 of the casing and preferably integral therewith, there projects outwardly a member 24, which serves as a lift by which the sash can be raised. Attached to the rock-shaft 18 is a finger-piece provided with a neck or reduced portion v2G which protrudes through a slot or opening 27 in the shell portion 12 of the casing and having an enlarged inner end 27"l through which the rock-shaft passes and `to which it may be secured by a pin 28 passing through a hole therein, or by any suitable means. lhen the fastener is in position on a sash, as shown in Fig. 1, the pawl 18 engages one of the stops 10 and holds the sash in a relatively elevated position and at the same time forces the sash outwardly against the strips L1 as previously described. To release the awl 18 from engagement with either of tlie stops 10, the linger-piece 25 is pressed vdownwardly toward the projection 24, which operation rotates the rock-shaft 13, as indicated by dotted lines in Fig. 2 and with it the pawl 18, which when moved sufficient to clear the stops 10, permits the sash to be raised or lowered at will.

Heretofore with sash fasteners of the type to which my invention relates it has been necessary to mortise the sash to receive. pari ofthe rock-shaft because of its projecting at the rear of the back side of theA casing and Ythis objection has seriously handicapped' the use of such type of fasteners, first, because of the labor involved in applying the fixture to the sash; and second, because of the objection to cutting away the bottom rail of the sash 'and thereby reducing its strength. `With my improvement the fastener can be applied without cutting away any of the sash rail vthe khead 16 which extends back of the rear line of the casing and to permit of the free operation of the pawl within the guideway. Thus all mortising immediately back of the casing is avoided by reason of the offset position of the pawl 18 relative to the rockshaft 18, the advantage of which will readily be realized by those familiar with the industry to which the invention belongs.

Having thus fully described my invention, I claim- 1. In a sash fastener of the character described, the combination of a casing, a roclrshaft mounted therein and longitudinally therewith and projecting through Vone end thereof, an arm extending outwardly from kthe free end of the rock-shaft substantially parallel therewith but to one side of the center line thereof, a pawl at the end of said arm disposed at right angle to the rock-shaft and adapted to operate within the guide-way for the sash whereby in applying the fastener to the sash cutting into the same intermediate the ends of the casing is made unnecessary, and means for operating the rockshaft and pawl. j

2. A new article of manu-facture for use in sash fasteners, consisting of an integrally `formed structure comprising a shaft provided at one end with an extension arranged substantially parallel with said shaft and to one side of the center line thereof and carrying at its free end a pawl disposed at right angle to the said shaft and adapted to operate within the gnideway for the sash.

In testimony whereof, I hereuntoY subscribe my name this 8th day of June, 1912.Y

ROBT. DUNNING. Y

litnesses C. F. DENNIS, J. KIRBY, Jr.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner Vof Patents, Washington, D. C.

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