US1673611A - John sidney williams and sidney preston williams - Google Patents

Description

June 2. 1928.

J. S. WILLIAMS ET AL CASEMENT WINDOW FASTENER AND THE LIKE.

Filed y 1927 51m: EY PREQTQN WILLIAMS INVENTOFLS B5 QAAJA TTY.

Patented June 12, 1928.

UNITED STATES PATENT OFFICE.

J OHN SIDNEY WILLIAMS AND SIDNEY PRESTON WILLIAMS, OF BRISBANE, QUEENSLAND, AUSTRALIA.

CASEMENT-WINDOW FASTENER AND THE LIKE.

Application filed July 6,

This invention relates to fasteners of hinged structures such as casement windows, the fasteners being of the two plate type, one plate being adapted to be secured to the structure and therefore movable with it, and

the other plate being securable to an adjacen't support, such as the window sill, there being means to hold the movable window plate in any of several positions according to the adjustment of the window desired. Existing fasteners of the type stated so far as known toushave disadvantages, and one object of this invention is to provide fasteners which are easy to instal a place where it there is in a right angled area or corner without recessing the framing near the window. Another object is to provide that a pawl carried by the window plate shall engage a selected part either of the fixed plate or of a member'herein called an arm, which is attached to the fixed plate, and which when required becomes'an extension in continua- -ti0n of the fixed plate, so that when the pawl is not in a position to engage the fixedsill uplate, it will still be able to engage the ex tended arm and hold the window more fully -open than if the extension were absent. The

sill plate has, for a. utility hereinafter stated,

means by which its front is located with a. 80' space between it and the sill.

The applicability of the fixed plate in a right angled corner with the window pivotal line about on the same plane as the surface of a partition extending well inward from the window for example is due to the presence of the extension arm, the window being widely openable. If it be not desired to be able to openthe window so widely, the extension arm is omittable.

I In the drawings herewith, Figure 1 is a plan of an embodiment of this invention applied to a window shown widely open.

Figure 2 is similar to Figure l, but with the window shown closed.

Figure 3 is a front elevation of the parts in Figure -1. i

1 Figure 4 shows in section parts which carry the pawl pivot, enlarged; on line F of Fi re 2.

igure 5 is a plan of the fastener modi- .fied, the window being less widely open.

Figure 6 is similar to Figure 5, except that it shows the window closed.

The hinged structure, shown by a window W, is hinged to a frame F which at its base 1927. Serial No. 203,701.

has a sill S. S denotes the surface of a wall, partition, or fairly deep recess of the window frame. 1 is a window plate,of skeleton and approximately triangular form, fixed in horizontal position to the window fixing screws 1 being shown extending through suitable parts, shown lugs 1 2 is a sill plate of'skeleton and approximately triangular form lixedwith its front spaced over an adjacent suport, herein called the sill, for which purpose it has feet 2, at its base, one foot at each angle being preferably provided and screwedldown, the effect being that under a rail 4which forms the sill plate a front edge space is left.

Each plate 1 and 2 has a front rail, 3 or 4 respectively, the window plate rail 3 being above and coinciding withrail 4 or substantially so when the fastening is closed. Rail 3 may rest on rail 4, and it is glidable above it.

Each rail is curved and the curves have, as a centre, the axis of the window hinge H,

;so that the rails continue to coincide but to a decreasing extent while the window is be ing'opened, until a point is reached when the window rail has moved quite past the sill rail. The window plate rail 3 has a lug 3 which when the window is closed or sufficiently so, overhangs the front edge of the sill rail 4. This lug carries a pawl 5 and to facilitate this, a boss 3? is provided on the lug. The boss is apertured to receive the pawl pivot pin 5, and the aperture interior 3 is dimensioned to house part of a suitable spring 5, ends of which are indicated in dotted lines at 5, Figure 1. The pawl 5 has a tooth 6 which is so urged by the spring that the tooth end bears on the sill rail 4 and normally engages one of a series of recesses therein, shown as notches, 4 4, the rail end 4 being also adapted for tooth engagement'to hold the window fastened in closed position.

The building may have awall, framing or partition surface S at right angles to the closed windowyso that there is not space for the rail end 3 to be moved inwardly beyond that wall or like surface when the window is closed, see Figures 4 and 5.

Therefore the length of the rail 3 having the end 3 is limited in this invention accordingly, although the rails of certain prior fasteners have not that limitation. The right angled corner area shown in the drawings is boundedby the window and by the adjacent training S, and is over the sill end. The extremity 3 of rail end 3*, does not extend sy'sae surface- S;

An arm 7, pivoted to rail 4 is'prtwideldas shown in Figures 1 to 3. This. arm moves on its pivot 7 froi'ri'itsnormal closed posi- .swin'lginwardlyg to the position of Figure 2. This extension mer'nber is recessed to receive thepawl' tooth end, notches being shown in its edge, at, 95 and 4;", v p

l/Vhenitengages the end l,tootlrtlIztastens the window. inclosed position; by (511- gaging any recesses 4 it or 4, it holds the window partly open; and by engaging recess es it holds the window very widely open.

'lhe lengthof the extension arm is not necessarily limited to thatillustrated. g

The 'extension arm is formed with a; stop 10 shown on its underside and when the window widely opened the pawl extended end 6*. p wl i t 6 i arr te y h s p which then prevents excessive opening of e i ewc In Fi u t s re Pr onthe sill plate and is shown at onthe underside thereof, as an alternative to Finger lugs 8, 9 progecttrom rail 3 and pawl 5:respectively-, ant are normally spaced a short distance apart by the influence of the pawl spring 5'. The extended end 6"v of toothfi heingbelow the rail 4 prevents rail 3 lifting froin its normal position close aboyerailfl.

Ex r in thisipair of lugs together, h

twe'en a finger and thurnhfor example, the

pawltooth 6 is detached from any recess it engages, andt he operator, while still gripping the lugs together, pushes thern in'any direction he wishes andthus pushes the window to any position he desires.v 'When that position is reached he releases the lugs, al-

lowingthe pawl tooth to spring. an adjacent recess and hold. the window firmly.

.An extension arrn canbe dispensed "with as in Figures 5 and 6. if without'such arm,

thewindow opens sufficiently wide for use;

in these figures the triangular plates have each an acute angle opposite the curved rail. Such an" angle is useful only occasionally t-hat is when itis desirable to further economize the space the festenin'g'occupies.

When the window plate has been :fitted, its position enables the sill plate to be easily and correctly located, sothat when-gum window isclosed the front rails of th e plates will substantially coincide and so that the sill plate will prevent sagging ot the window relatively to its hinge H.

1. Ina" fastening for a'hinged structure,

two plates one tobe fixed to said structure,

the other to be fiX e d to an adjacent support, a pivoted pawl ononeplate and onthe other P W ss b en a by. ee e pauhth latter plate uppo i g a rii e e lexte ion aim r s e o s mi 'i' n a e ent Sa d arm shifting into eirte idedposition conun anon or its. arrestin r il ycr nifi the ing d s n tum yend a plfedete i i ed extent, and shifting into closed position. by closing the said structure.

.ll Lt. 2. The construction in cla1 rn 1,but wher-.

in each plate has a curved tron t raihthe rails is closed, theicurves having the same axis, one rail beingjrecessedior pawlengag'e" h t, the other rail "pawl, pivoteddoit with springmieans to ust said en agement. Y 1 i vThe construction in claiin 1,1b1it1wHeieinidu'ring window openin the paiivl'stiilie's i the extension aim andshi tsit into elitehded 4 The combination with awiiiddw pos mhaving a curved "nest railcarry'iii a 1 urged 'paw'l, of a sill "late tats Tfizielilto an adjacent su pei e and having" a pulsed teens, rail 610st to'andtelq'wy the windowplate mil, an exteasipnj arm pivoted u) the sill plate, recesses in the/sill plate rail the] said are m "be engaged'by the pew i a 5 finger lug 0n the windoiw plate rattan fa finger lug on the pawl, uiiugs'beiugflaaapa ed to beheld pressed tog nests free the pawl, and'whle" '50 held pushed, in any directio by which to move thewindow, said shitting when struckand pushed; either by tliGiPiLWlOl window} i y 5. A sill platehaving affront'curvediecessed rail having p, pivoted to it a. recessed eirteiision arin adaptedito b'e swung into-ex- .tended or closed position, in winnings-(m with awindow plate having a curved front rail having a finger lug and'also a projettin lug carrying a spi-ingerg-"ed'pawl havinga finger lug, and having atoo'thed projection for recess engagement. g g

6.- The construction "as clainie d" in eleijn 1, in which each plate has a curvedjtrontrail and the fixed plate is providedwithnnder projections to locate its front rail'and" its extension arm over a space which is over 1 the support of saidprojectionsand the pivoted pawl having. an extension which "enters. and is movable along the said space;

7. In combination with akhinged st i'l lc-n ture and an adj acent wall formingtherewith an angular area, an upperplatefixed said 1 substantially coinciding 1 when structure, and a lower plate fixed to an adjacent support, the area of each plate being less than that of the angular area, a corner at the inner end of the lower plate being located at a distance from the Wall, the lower plate carr ing a pivoted extension arm adapted to be swung into open position beyond the fixed lower plate by the movement of a pawl on the upper plate beyond said fixed plate, the pawl being adapted to engage the said inner corner of the lower plate between it and the wall to hold the said hinged struoture'in closed position, the pawl being adapted to engage one of a series of notches in the lower plate, or in the 15 JOHN SIDNEY WILLIAMS. SIDNEY PRESTON WILLIAMS.

Images