US983732A - Window-sash lock. - Google Patents

Description

. MaARTHURfLoNG.

WINDOW -fSASH LOCK. APPLICATION FILED SEPT. 22, 1910.

Patented Feb. 7, 1911.

5 cation at 12,

MCARTHUR LONG, OF MEMYHIS, TENNESSEE.

W'INDOW-SASH LOCK.

Application filed September 22, 1910.

To all whom it may concern:

Be it known that I, MoAnrHUn LONG, a citizen of the United States, residing at Memphis, in the county of Shelby and State I of Tennessee, have invented certain new and useful improvements in lVindow-Sash l Locks, of which the following is a speciicai tion. y

rFhis invention relates locks of that type whereby the lower l prevented from being moved upward and the upper sash from being moved down\ to window sash sash is ward, my object being the provision of a sash lock `susceptible of adjustment to lock the sashes at variable points and of being thrown to inoperative position to leave both l sashes free. A further object is to produce a device of the character outlined, embodying the desirl able features of simplicity, strength, dura l bility and cheapness of construction.

lith these objects in view, the invention consists in certain novel features of coni struction and organization as hereinafter described and claimed; and in order that it may be fully understood reference is to be had to the accompanying drawing, in which:

Figure 1, is a fragmentary inner face view of a window equipped with a sash lock embodying my invention. Fig. 2,is a vertical section on the line llt-H of Fig. 1, a pait in the background being broken away. Fig. il, is an enlarged section on the line IHA-lll. of F il. Fig. e, is a vertical section ou the line IV-V of Fig, 1.

In the said drawings, 1 indicates a window casing, Q the lower sash and 3 the upper sash thereof, the latter having a longitudinal groove 1 in its inner face at one side of the window light.

Secured in said groove, with its face flush with the inner face of the sash, is a vertical bar 5, provided .with a dovetail groove 6, extending from its lower end nearly to its upper end, and with openings 7, in commu l nicatioii with said groove, and transverse slots 8, intersecting said groove in the horizontal planes of said openings.

Arranged vertically is a slide block 9, the same fitting against the face of the bar y and having a dovetail rib 10 fitting in the l l I l l groove 6. the block being provided inward @of its body, with an upwardly-projecting bifurcated arm 11, and pivoted in said bifuris a catch 13 equipped at its upper end with a cross head 141 for engagement Specification of Letters Patent.

Patented Feb. 7, 1911.

serial no. 583,226.

with said slots S, and a tooth 15, projecting from said cross head, for engagementwith said openings T, a spring 16 being secured to the rear or outer side of the bifurcated part of block 9, and applying yielding pressure on the catch to hold the same in vertical po-v sition with its tooth 15 in one of the openings 7, or in horizontal position, as shown in Fig. 2, in which latter position it does not interfere with the opening and closing of eithei' of the window saslies. A clamp 17, is bifurcated at one end and fitted over the narrowed lower end oi' rib 1S of block 9 and pivoted thereto so as to be capable of standing vertically against the block above and at opposite sides of said rib, .which is its inopeia tive position, or of projecting horizontally inward so that its bifurcation 19, is in position to receive the upwardly-project-ing stud 20, of a plate 21, secured to the'upper end of the lower sash.

lVhen the parts are arranged as shown in Figs. 1 and 3, it is impossible for a person outside the window to move the upper sash or raise the lower sash, it being also obvious that the engagement of the pivoted clamp 17 with the stud Q0 binds the sashes together and thus minimizes the possibility of their rattling in windy weather, it being noticed that this relation between the sashes exists irrespective of the position thereof, provided the plate Q1 is in engagement with the lower end of the block 9. It is obvious thatthe block may be slid in bar to leave the lower sash free to be raised and lowered independent of the block though the complete elevation of said sash will result in the rengagement of the stud with the pivoted clamp unless the latter is swung upward to the vertical position previously referred to.

l' Then it is desired to lower the upper sash without affecting the lower one, the catch 13, is swung to the horizontal position shown in Fig. 2, the engagement of spring 1G, with the squared lower end o-f the catch holding it reliably in the inoperative position mentioned, it being apparent that as said upper sash moves downward, the block slides relatively upward in the grooved bar 5, through engagement with the plate 21 at the upper end of sash 2.

From the above description it will be apparent that 1 have produced a sash lock embodying the features of construction enumerated as desirable in the statement of the object of the invention, and l wish it understood that I reserve the right to make such changes in form, detail construction and organization as properly fall within the spirit and scope of the appended claims.

I claim l. A sash lock,

comprising a bar secured vertically to the inner side of the upper sash of a window and provided with a vertical series ot' openings, a block fitting against the inner side ot' said bar and slidably secured thereto, a catch pivot-ed to the said block and provided with a tooth, and a spring carried by the block and engaging the catch to hold the same vertically with its tooth in engagement with any of said openings or horizontally with its tooth out ot engagement with any ot said openings.

Q. A sash lock, comprising a bar secured vertically to the inner side of the upper sash ot' a window and provided with a vertical series ot' openings and a corresponding series ot' transverse slots, the latter being formed in the inner side of the bar and communicating with the said openings, a block fitting against the inner side of the said bar and slidably secured thereto, a catch pivoted to said block and provided with a cross head to engage any of the said slots and a tooth to engage any of the said openings, and a spring carried by the said block and. bearing against the said catch and adapted to hold the same with its tooth in or out of engagement with any one ot' said openings and said cross head in or out ot' engagement with the communicating slot of the bar.

3. A sash lock comprising a bar secured vertically to the inner side of the upper sash of a window, a block fitting against the inner side of said bar and slidably secured thereto, means for locking the block to the bar, a clamp pivoted to said block, and a plate secured to the upper end of the lower sash ot' the window and provided with a stud for engagement by said clamp for the purpose of holding the sashes clamped together.

4. A sash lock, comprising a bar secured vertically at the inner side of the upper sash ot' a window and provided with a vertical series of openings, a block tting against the inner side of said bar and slidably secured thereto, a catch pivoted to said block and provided with a tooth, a spring carried I by said block and engaging the catch to hold the same with its tooth in or out ot engage ment with any one of said openings, av pivoted clamp carried by the block, and a plate secured to the upper end of the lower sash ot' the window and underlying and provided with an upwardly projecting stud for engagement by said pivoted clamp. 5. A sash lock, comprising' a bar secured vertically at the inner side of the upper sash of a window and provided with 'a vertical series of openings, a block litting against the inner side lof said bar and slidably secured thereto, a catch pivoted to said block and provided with a tooth, a spring carried by said block and engaging the catch to hold the engagement with any one of said openings, a biturcated clamp pivoted to said block, and a plate secured to the upper end of the lower sash ot the window and underlying l the pivoted block and provided with an upl wardly projecting lug for engagement with the bifurcation ot' said clamp and to be held pressed against the inner face ot' said block by said clamp.

6. A sash lock, comprising a bar secured l vertically to the upper sash ot' a window and provided with a dove tail groove, a vertical series of openings communicating with said groove, and a corresponding series ot' transverse slots intersecting said groove and communicating with said openings, a block fitting against the inner side of said bar and provided with a dove tail rib slidingly engaging said groove, a pivoted catch carried by said block and provided at its free end with a cross head for engagement with any one of said transverse slots and with a tooth projecting from the cross head for engagement with the opening in the bar registering with the slot engaged by the cross head and a spring carried by the block and engaging' the catch and adapted to hold the same vertical with its cross head and tooth engaging a slot and an opening respectively or with said cross head and tooth out of engagement with the vertical bar.

In testimony whereof I aliix my signature, in the presence of two witnesses.

MCARTHUR LONG. Iitnesses Oscar: S. IVALL, Rav Lnn Dnnni'ns.

said block,

same with its tooth in or out of

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