US64910A - Charles a - Google Patents

Description

i @nitrivtstre stwt @fitta` CHARLES A. ,SCHAEFER OF CHICAGO, ILLINOIS, AssIeNoR To HIMSELF, FRITZ FRILL. MAN, WILLIAM WOLFF. AND JOHN soHAcHTsoHoBEF., or THE SAME PLACE.

Letters .Patent N0, 64,910, dated Way 21, 1867.

IMPROVEMENT IN HANING AND LOCKING SASH.

TO ALL WI-IOM THIS MAY CONCERN;

Be it known that I, CHARLES A. SCHAEEER, of Chicago, in the county of Cook, and 'State of Illinois, invented a. Device for Hanging andiLOCking Sash;' and I do hereby declare that the following is a full, clear, and exact description of the construction aid operation of' the same, reference being had to the accompanying drawings and letters marked thereon, makinga, part 0f this description, in whichi Figure 1 is an elevation of lily invention, with the front plate removed in order to show the inside arrangements.

Figure 2 is a perspective representation ofthe lock used for holding the sash in position after havingbeen moved to the required place.

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The natureofv my invention Consiste, iii-st, in supporting sash by means of cog-gearing and a coil spring, so arranged as to elevate and l0We1 the tash at will, 'and retain them in any desired position; second, in arranging a peculiar-Constructed 100k for holding the sash rigidly in position when closed, or at other points when required. V

In order t0 give a correct undereiehd'rng of my inyention I have marked each part with the same letter, and will now give a detailed description.v

A-represents .the beek Piate, and B Blthe rim or sides, of the box in which my device is arranged, the face plate being removed to show. the getring, 85e. The projections H have screw holes, for the purpose of fastening the face plate, in a manner Similar to lock-cases. L is a shaft of cog-wheel C, the ends of which turn in holes made in beck late A, and in 'I'On; plate, (not shown.) This wheel meshes into wheel D, having shaft E operating in front and back plates, the Same as shaft L. The cog-wheel lF is also attached to'. the shaft E, and is lmade to operate the rack l 1 1, 3DG, attachedv to the sash J, shown by red lines. G shows a common coil sprin'g,.one end of which is attached to shaft L, and the other end to the post P, iig. 1, and operates the gearing above described, and iS mede Streng eIlOl'gh to balance the sash when raised. I make the `wheel D about onellnlf 0f the Size 0f Wheel C, fOr the Purpose of moving the sash J as far as necessary without uncoiling spring so much as to cause its fOlGe t0 be Checked by being cramped in the case A B B. An elevated step is made for the back end Of the Shaft E i0 Fest in, and serve as a stop for the spring Gto strike against and prevent friction, which occurs if the spring, when uneoiied, were allowed to press against shaft E. Drawing X shows the step S, Shaft E, and SPTihgG in POSOn dite? the latter has been uncoiled. The lock I is shown more Clearly at iig. 2, and is made to revolve half Way around in the front and back plates of the case, and has a notch, K, in its periphery, for the purpose l0f permitting the wheel F to revolve when the sash J is to pass up or down -and also has a nih 01 Stop, n, rigidly attached to the back end, which strikes against an elevated semi-rim, o, and is thereby prevented from being turned Olii of place. A key-hole is made in the front end of lock Iifor the purpose of inserting through the Casing Mld into the lock a key or stem of a knob, in order that the sash J may he permanently xed in any given pOSitiOH. The red lines a, iig. 1, show the position of the knob, which is supposed to projeet Outward from the inside easing of the window far enough to be easily operated.

Operation..

The CaSe A B B mut he inserted :n a mortise made in thejamb-casing in the same manner as a common lock, and secured by screws r, put thlelgh the face plate B', as seen at g. 1, after which a kuobcan be fitted. to the Casing, S9 RS t0 100k and lllliOCk ille wheel F, when desired, by simply turning the lock I half around.

Having thus fully described my device, what I claim, and desire to secure by Letters Patent, is

The half round locking-Studi, in CCmbination with a rack, J, and pinion, F, to lock a window-sash at any desired point, substantially as set forth.

lCII-AS. A. SCHAEFEB..

Witnesses:

GEO. L. CHAPIN, A. HAYwAnD.

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