US567620A - Lester c - Google Patents

Description

,(No Model.) I L. '0. SMITH.

- v SASH FASTENER. No. 567,620. Patented Sept. 15, 1896.

P 9 Jz" r I lll|l|l||| Ill m mum I z llllllllllllllllllllllll Illmm msses Java 7a???- laar dr z'f LESTER C. SMITH, O

ent movement by wh blade applied 3 5 proper movement of the with two peculiarly shaped slots rear of the & TOIVN E MANUFAC after engagement with the kee F STAMFO To 0055 whom it may concern: Be it known that I, LESTER C.

The subject of this lnvention is a fastener by the handle, so as to turn it ll I 5 engagement with the customary keep 1 in novel features of construction,to be herelnafter fully described,

out in the claim.

0 All the slots are formed in the hook, which adds to convenience of manufacture,

F which slots works upon a stationai the base-plate, and has a cam or an offset for 0 engagement with the stud to cause t] to move longitudinally to strain the meeting rails together, a continued mov handle locking the hook, as hereina scribed. The other slot ing-stud which projects d receives an ownwardly from the handle-plate, adapting the handle to the sw1n ging also terminating 1n a cam or an off. cooperates with the cor the opposite slot to impart the movements to the hook when i each a controlling-stud, thus simplifying the construction To eifeet the it is prox'ided in front and elongated pin opening,

ement of the 00k, and

longitudinal t is engaged UNITED STATES PATENT OFFICE.

RD, CONNECTICUT, ASSIGNOR T0 TIIE YALE TUBING COMPANY, OF SAME PLACE.

SH-FASTENER.

with the keeper to strain the rails together In order to make the device in its simple form, with a pairof slotsin the hook and a single pair of studs located,respectively, on the base and handle, each slot is made for a portion of its length concentric with the opposite end of the elongated pivot-hole, and terminates at one end in a cam.

In the accompanying drawings, Figure 1 is a plan view of the fastener in unlocked posi- Fig 2 is a plan view of the same in an intermediate position whichis assumed duris a perspective view of the base plate.

base-plate, which is selower sash. -7 5 represents the lock1ng-hook, adapted to turn on'the base-plate B. y l H represents the operating-handle, pivoted to the base-plate y a pin P, which passes through. a longitudinal elongated opening S in the hook L.

K represents the keeper, which is secured upon the bottom rail of the upper sash. A spiral spring 8 is preferably interposed between the pivoted head P and the handle H, occupying a socket in the handle and pressing down upon the handle, so as to produce friction between; the parts, but this is not essential to the invention.

The distinctive features of my improve- 0 and the re hook fter deoperatelongated pin-opening and terminating in a .95

at in looking they first cause swinging movement of the handle and hook together, then compel the longitudinal. movement of the hook to strain the meeting-rails together, andjthen permit an independent swinging of the handle into locking: position, and perform said moveimpart ments in reverse order in unlocking; a stud its cam, so that the two movable parts then 5 prlgiecting upward from the base-plate B swing back together to unlocked position. wit n the slot 1, and a stud 6 projecting (Shown in Fig. 1.) downward from the handle-plate H into the From the foregoing description it will be slot 2. l observed that the construction, while com- The operation of my device is as follows: pletely effective,is very simple and comprises In the unlocking position, Fig. 1, the handlebut three parts, secured together by a pivotal stud 6 is in the offset i, from which it cannot pin, and that the controlling relation between escape except by longitudinal movement of the parts is established by the use of only the hook; but the base-stud 5 is in the portwo slots and a single stud cooperating with tion of groove 1 concentric to the end of the each slot. The offsets are radial to the repin-opening, and will not now permit the said spective centers of slots and their studs longitudinal movement. The handle and alternately enter their respective offsets, and hook are therefore compelled to swing toeach stud while in its slot keeps the other gether on pin P until cam 3 reaches stud 5. stud in its offset, so that the controlling re- At that time not only can the hook move lation between each stud and its slot is mainlongitudinally, but upon reaching the positained until the other stud completes its tion shown in Fig. 2 cam 3 substantially armovement in the other slot. There is likerests the swinging movement and the two wise an advantage in having the offsets cams compel longitudinal movement of hook rounded or cam-like, as they are thereby I. Said longitudinal movement draws the adapted to produce the longitudinal movemeeting-rails together and brings pin P to the opposite end of pin-opening S,after which the handle continues its movement independently and causes stud 6 to travel in the concentric portion of slot 2 when the parts are in position shown by Fig. \Vhile the parts are thus disposed, stud 5 is in offset 3, and by engagement with the abrupt wall of said offset opposes any attempt to move hook 1 until reverse longitudinal movement is imarted to said hook, which can only be done by first swinging back handle H. until its stud 6 reaches cam 4:. In other words, while cam 3 is engaged by fixed stud 5 the hook cannot move except in a direction longitudinal, and stud 6 at the end of slot 2 prevents said longitudinal movement. "0 release the lock, it is simply necessary to turn back the handle through its independent movement until stud 6 reaches cam 4-, when said cams cooperate to move the hook outward to position of Fig. 2, and the stud then standsin engagement with ment of the hook without additional connection.

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

A sash-fastener comprising the base and handle with interposed hook and the pivotal pin said hook formed with enlarged pin-opening and a pair of slots concentric with the respective ends of the pin-opening and terminating in oppositely-extending cams or offsets; and said base and handle being provided each with a stud located to work in the slots, to alternately enter their respective offsets and to be each held therein by the other stud while moving in the concentric portion of its slot, all substantially as and for the purposes Set forth.

LESTER 0. SMITH.

\Vitnesses:

SCHUYLER MERRITT, Gno. E. WHITE.

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