US341152A - Sash-fastener - Google Patents

Description

2 Sheets-Sheet 2.

(ModeL) M. 0. LANE.

' SASH FASTBNBR. No. 341,152. Patented May'4, 1886.

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' UNITED STATES PATENT OFFICE.

MARTIN O. LANE, OF ALTOONA, PENNSYLVANIA.

SASH-FASTENER.

flPECIFICATION forming part of Letters Patent No. 341,152, dated May 4, 1886.

Application filed July 20, 1885.

Serial No. 172,116. (lilodeL) To aZZ whom it may concern:

Be it known that I, MARTiN 0. LANE, of Altoona, in the county of Blair and State of Pennsylvania, have invented a new and Improved Sash-Lock, of which the following is a full, clear, and exact description.

My invention relates to that class of devices employed to secure or look window-sashes in such positions as may be desired; and my invention consists of certain details of construction and combinations of parts, to be hereinafter describedmnd specifically pointed out in the claims.

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

Figure 1 is aview of a portion of the side of a window-frame with my invent-ion applied thereto. Fig. 2 is a sectional plan view taken on the broken line (a a: of Fig. 1, also showing in section portions of the upper and lower sashes that are mounted in the window-frame; and Fig. 3 is a verticalsectional view taken 011 the line 1 3 Fig. l, a p rtion of the upper sash being shown in this' lgure. Fig. 4 is a perspective view of thetwo sections of the case.

A represents the window-casing, to which my improved sash-lock is secured in position to have the upper locking-block, B, engage with the rack a on the upper sash, C, and the lowerlocking-block, B, engage with the rack a on the lower sash, C. These racks a a. are serrated metal bars, upon the rear of which there are formed short posts I) b, that fit tightly within sockets formed for their reception in the window-frames, as best shown in Figs. 2 and 3.

The locking-blocks B and B are mounted in a rectangular frame made entirely from two duplicate castings d d, that are placed together to form the supporting-frame. These castings are L'shaped, and from their extending arms e there project slotted lugs f, arranged to enter sockets formed in the main body of the fellow casting when the two castings are placed in the position shown best in Fig. 1.

The apertures c c, in which the locking-blocks B B rest, are formed in the main body of the castings d d. The locking-blocks B B are alike, each being provided with a serrated face,i 1 and a cam-slot, 0 ,which extends out.- ward toward the serrated face i from one side of the perpendicular center line and runs parallel with said face i on the other side of the said center line, as best shown in Fig. 3.

hen the blocks B B are placed in the frame made by the casting (I d, the beveled portion of the cam-slot 0 in the upper lockingblock, B, must be below the perpendicular center line of the block, and in the block B this beveled portion of the slot must be above such center line.

The block B is operated by a manipulatinglever, E, which extends through slots'in the castings (Z (I, being trunnioned to oscillatein bear ings formed by the meeting of the castings at the point p, as best seen in Fig. 1, the extending arm g of the lever riding in the slot 0, formed in the block B, so that when the free end of the lever is depressed the block B will be thrown out and its serrated face brought into engagement with the teeth of the rack a.

The lever F, which operates the block B, passes directly throngh'the slots formed in the castings d d and the slot 0 in the block B,and is pivoted at its end 7; in bearings formed by the meeting of the castings d d at the pointp.

The levers E and F are formed with arms 6 and f at their outer ends, and these arms carry knobs c and f, that project through slots oz. and m, that are made in a plate, H, so as to be concentric to the pivotal points of the levers, the said plate H being secured to the windowcasing by screws 8 s, as shown in Figs. 1 and 2.

The portions of the levers E and F that come in contact with the sides of the slots 0, formed in the blocks B B, are hexagonal in cross-section, the side faces, 2; 1;, being, however, broader than the other faces of the leverarms at the points named.

The operation of the sash-locking attachment above described is as follows: The sash having been moved to the required position, the lever-arm operating the block that engages with the serrated rack on the sash so moved is depressed to the lower side of its slot in the plate H, which movement of the lever will bring the bearing portion of its arm against the beveled portion of the slot 0, and thereby throw out thelocking-block,so thatits serrated face i will be brought into engagement with the teeth formed on the rack carried by the sash-frame, and from the peculiar construction of the parts it will be seen that either sash may be securely locked in any position to which it may be moved. Vhen the windows are closed and locked, those portions of the arms of the levers E and F that are within the slots will rest in. the straight or parallel portion of said slots and the broad sides 12 c will be in contact with the walls of the slots, and when the levers are moved to allow the windows to be opened the beveled portion of the slots will be borne upon by one of the other flat faces of the lever-arms.

A win dow supplied with such a sash-lock as I have described maybe provided with sashes that are counterbalanced by weights or not,

just as is desired, for the locking device will not in the least interfere with the weights if they are used, and will hold the sash in position without weights.

The device has no springs to get out of order and no pins thatare likely to be lost, and will not interfere with the removal of the windows for the purpose of cleaning or otherwise repairing them.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a saslrlock, the combination, with the window-casing and sash-franies, of thelockingblocks mounted in the same supporting-frame, and formed with the slots 0, and levers E and F, arranged to ride in said slots, whereby when the levers are depressed the blocks will be brought into engagement with the windowsash, substantially as described.

2. The supporting-frame made from the castings (Z (I, each of which is provided with arms 0, that carry slottedlugsf, and are each correspondingly slotted to receive the lugs f, and are each provided with apertures 0, substantially as described.

3. The combination, with the window-casing and saslrfiames, of the strips to a, secured to said sash-frames, and the locking-blocks B B, mounted in a frame formed by the castings (Z (Z, levers E and F,pivotally mounted in said frame and riding in cam-grooves 0 0, formed in the blocks B 13, substantially as described.

MARTIN 0. LANE.

'Wi tn esses J. XV. LANE, G. V. DUNLAP.

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