US284046A - Chaeles mobbill - Google Patents

Description

(No Model.)

' C. MORRILL'.

PASTENER EUR THE MEETING RAIL-s 0F SASVHES. No. 284,046.

Patented Aug-28,1883.,

W vver UNITED STATES PATENT OFFICE.

CHARLES MORRILL, OF NEV YORK, N. Y.

FASTENER FOR THE MEETING-RAILS OF SASHES.

4SIIECIFIGATION forming part of Letters Patent No. 284,046, dated August 28, 1883.

Application filed Julyn13, 1882. (No model.)

To all whom it may concern:

g Beit knownthat I, CnAnLEs MOREILL, of New York city, have invented certain new and useful Improvements in Sash-Locks, of which the following is a specification.

My invention relates to that class of sashlocks in which the pivoted or swinging button or lock-bar on the upper sash is provided with a retractile bolt or catch to engage with the plate on the lower sash when swung into engagement therewith, so as to prevent the un locking movement of the lock-bar, except by first releasing the catch from the inside of the house.

It also relates to those sash-loeks in which the lock-bar is pivoted on a horizontal axis and arranged to swing vertically up and down over the joint of the meeting sashes.

My improvements aim to provide a sashlock of this type which,while being very secure,willbe simple in construction and less view of my improved sash-lock shown in itsl expensive to manufacture than Vthose heretofore; and my improvement chiefly relates to the manner of producing the retractile catch or burglar-proof engagement between the lockbar and the hook or plate on the lower sash; and this may be stated to consist in pivoting the lock-bar to a lug which has a hinged or pivoted connection to the baseplate on the upper sasl1,with a spring to constantly pull said lug down upon the base, whereby the lockbar is allowed to spring or yield forward when swung down into its locking position, and thus permit a latch-tooth on thelock-bar to ride over and snap into engagement with a hook or latch on the lower sash, which thereby locks the two insecure burglar-proof engagement.

. Myinvention also consists in details of construction relating to the latching or locking teeth, and also to the hinging-lug and lockbar, whereby the lock-bar is held firmly in its upright or unlocked position when so placed, to prevent the lock -bar from falling over against the. raised sash, as hereinafter fully set forth.

In the annexed drawings, Figure 1 is a plan locked position. Fig. 2 is a sectional end elevation shown in the unlocked position. Fig.

3 is a front elevation in the same position. Figa is a sectional front elevation of the parts affixed to the upper sash. Fig. 5 is a plan view of the hinging-lug removed; Fig. 6, a vertical section thereof on m; Fig. 7, a perspective view of the same.

In Figs. l, 2, 3, and 4, b indicates the top bar of the lower sash, and a the bottom bar of the upper sash.

d indicates the base-plate of that part of the sash-lock which is affixed to the lower sash, and c the base-plate of the part affixed to the upper sash.

c indicates the lock-bar, button, or lever of the sash-lock, which bar is mounted on the base-plate c of the upper sash, and is pivoted on a horizontal axis-pin, f, so as to swing verA tcally Clown over the meeting joint of the sashes upon the base-plate d oi" the lower sash, as shown by full lines in Fig. 1 and indicated by dotted lines in Fig. 2. The lock-bar is not pivoted directly to the base-plate, but to a hinging-lug, g, which has a'hinged or pivoted connection with the base-plate, as `will hereinafter appear, and the pivotal end of the lock-bar is forked or cleft, as seen best in Figs. l, 3, and 4, to straddle the lug, as shown, and the base ofthe cleft is indented or notched to form a latehing shoulder or lock tooth, h, which, when the lock-bar is swung down into its locking position, will engage with an arrow-head or latching-hook, t', projecting from the base-plate d of the lower sash, in coincidence with the cleft in the pivoted end of the bar, as will be readily understood from Figs. l, 2, and 3. Now, the hinging-lug g is formed with a base-flange, lc, to rest on the base-plate c, and with an underlying central tongue, Z, which passes through a slot across the middle of the base-plate (see Figs. 2 and 4) and projects within thehollow of the baseplate, as shown. Through the frontend of the tongue Z is passed a pin, m, which underlies the base-plate, and the front edge of the baseiiange 7c, above the base-plate, is rounded off, as best shown in Figs. 2 and 7. Thelug g has hence a pivotal or hinged connection with the baseplate, and while it is prevented from becoming bodily raised up or detached from the base by means of the pin an, it can yet rock slightly forward or backward on the rounded edge lc', as will be understood. The back end of the tongue is perforated with a short slot, through roo Y which is passed a bow or leaf spring, ,whose ends bear on the under side of the hollow baseplate c, and thus constantly 'tend to hold the hinging-lug in its quiescent position, ywith its 5 base-flange k seated firmly on the base-plate c,

as shown in Figs. 1, 2, 4, and 6.

` Referring now to Fig. 2, it will be seen that if the lock-bar e be swung down while the hinging-lug vis in its quiescent position, the arc through which the lock -tooth h moves will intersect the inclined .face of the latchhook z', and the two will thus come into opposing contact. If, however, the lock bar be pressed firmly downward, or if it be pulled slightly forward, the hinging-lug g will yield forward slightly, and thus permit the lock-tooth h to ride easily over the inclined face of the hook i till the hook arrives at the barb or engagingnotch of thehook, when the two will then spring into secure engagement by the reaction of the spring n on the hinged lug g, as will be readily understood, thereby causing the two parts of the sash-lock to become so engaged that they cannot become burglariously unlocked by any implements inserted between the sashes. When, however, the inmates ofthe house desire to unlock the sashes, this can be readily done by first pulling the lock-bar e forward slightly andthen raising it upinto the position shown ily moved up or down.

It will be noted on reference to Figs. 1,2, 3,

and 4 that the tip of the latch-hook i is tapered or beveled, so thatV it will readily enter the slot of the lock-bar e when the latter is swung down into its locking position, although the hook and the slot may be slightly out of line with each other.

If desired, the sides of the slot may be tapered, instead ofthe top or sides of the latchhook, with equivalent effect, as will be understood, and it will be readily seen that by this means not only will the lock-bar engage with the hook easily, even if out of line, but in thus engaging with the hook it will at the same time bring the two parts of the sash-lock and the two sashes into theirtrue central or relative positions, which is a very desirable lfeature in the operation of the lock.

Now, a minor feature of my invention consists in means to hold the lock-bar in its raised position, as seen in Fig. 2, when thus placed, so as to prevent its falling over against the Alower sash, and thus becoming jammed between the sashes.

Referring to Figs. 2, 5, 6, and 7, it will be seen that slots o o are formed through the baseange la of the hinging-lug g close on either side of the lug, which slots admit the tines or branches of the forked pivotal end of the lockbar e, as seen in Figs. 2 and 4. Now, the front and lower corner of these tines is rounded off to a circular curve struck from the pivot center f and tangent to the surface of the base c,

(see Fig. 2,) while the remainder of the end of the tines is tangent to said circle and coincident in Fig. 2, when both sashes may then be readto the surface of the base. It will hence be readily seen that the rounded concentric corner on the' pivotal end of the lock-bar will allow the rock-barato swing down freely into its locked positionwhen so forced; but when swung into its raised position, as seen in Fig. 2, the iiat or tangent end of the lock-bar will coincide with the nat surface of the base, and will be held close thereto by the retraction of the hinging-lug g, thus holding the lock-bar firmly in its upright position, somewhat similar to the manner in which the blade of is -held when opened.

It will be noted of course that the tangent end of the lock-bar should not be exactly at right angles to the upright sides of the bar, but at a slight inclination, so as to allow the lock-bar to inclinev backward when raised, and thus bring the center of gravity of the lockbar on that side of the axis on which the spring n acts to hold it, as will be understood.4

It will be noted that. knobs r r, of ornate pyramidal shape, are fixed on each end of the pivot-pinf and project from each side of the lock-bar, and thus impart an attractive ornamental iinish to the bar 5 and it will be also noted that the bar in front or plan view is designed in an ornamental cruciform shape, which greatly improves the appearance of the sash-lock. 'Ihese ornamental qualities of the construction or design I reserve, however, for the subject of a design patent.

As shown best in Fig. 2, I prefer to form the hook i separate from the base-plate a, but with a shank, which is inserted in a slot in the base, and there rigidly held by riveting the end of a pocket-knife roo the shank, or by the pins s, as illustrated. I t

will therefore be readily noted that by the construction described both base-plates c d are formed separately from their attachments and without any protuberances, so that the surface of the base-plates,-when cast, may be nished off smooth and bright, and the attachments i g afterward Vaffixed thereto, which will be less expensive in the manufacture and allow a better finish.

Any other equivalent and elastic or for- IIO wardly-yielding connection of the lock-bar e with the base-plate besides that shown may be adopted, and any other form of engaging latch-teeth h z' may be substituted for those shown without departing from the principle of theinvention.

Any novel feature which I may have shown but not claimed in this application I reserve for the subject of a future application.

W/hat I here claim as my invention is= l. In asash-lock, the combination, with a lock-bar arranged to swing over the joint of the meeting sashes, of a forwardly-yielding lug to which the lock-bar is pivoted, and which is hinged to one sash, with a projecting hook affixed to the other sash, and an `engaging latch hook or shoulder on the lock-bar to engage therewith, substantially as and for the purpose set forth.

2. In a sashdoek, the combination, With an affxing base-plate, c, adapted no be affixed to the upper sash, of a hinging-lug, g, pivotally and elasticzdly connected with said base, the

5 lock-bar e, pivoted to said lug and provided with a eateh-noth or shoulder with a hook7 i, adapted to be xed to the lower sash to engage with said bar, substantially as herein shown and described.

1o 3. The combination, with a base, c, of lthe hinging1ug g, pivotally engaged Jhereo7 the spring n, engaged with the 111g and bearing on the hase, and the look-har e, pivoted to the lug, substantially V:is and for the purpose set forth.

CHAS. MORRILL.

Witnesses:

J No. E. GAVIN, CEAS. M. HIGGINS.

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