US743828A - Revolving metallic window. - Google Patents

Description

NG. 743,828." PATENTBD'NOV. 1o, 19o3.-

L. CHRISTRENSQN. 'REVOLVING METALLIC. WINDOW.I l

' Y APPLIOATION FILED MAB. 1S, 1903. v N0 MODEL. SHEETS-SHEET l.

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www LW. @Zug No. 743,828. Y PATENTES Nov. 1o, 190s.

l L. GHRISTENSON.

REVOLVIN G METALLICy WINDOW.

P-ISLIUTION I L D M A .18. 1903. A I E AB 3 SHEETS-SHEET 2.

PATENTED NOV. 10', 1903.

. L. CHRISTBNSON.

REVOLVING METALLIC' WINDOW.

APPLICATION FILED MAB. 1a. 1903.

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y UNITED Streit-ns Patented November 10, 1903i.

PATNT rrr-en -REVOLVING METALLIC WINOW.

SPECIFICATION' forming part of Letters Patent No. 743,828, dated November 10, 1903.

Application iiled March 18, 1903. Serial No. 148.329. (No model.)

To aZZ whom t may concern:

Be it known that I, LAns CHmsTnNsoN, a citizen of the United States of America, and a resident of the borough of Bronx, New York city, and State of New York, have invented certain new and useful Improvements in Revolving Metallic Windows, of which the following is a specification.

My invention relates to revolving sheet-k metal windows 5 and it consists of novel means of balancing the sashes one by the other, so that they will when opened on their pivots automatically slide up and down reversely when power is applied to one' or the other, ,and when in case of fire and the sashes are set open on their rotary range of movement a fusing-link in the balancingchain sets in motion automatically rotating closing action of the sashes, ashereinafterdescribed,referencebeingmade to the accompanying drawings, in which- Figure l is a sectional elevation of my im-V proved revolving window, taken on line 2 2, Fig. 2. Fig. 2 is a vertical section on line 3 3 of Fig. 3. Fig. 3 is a horizontal section on line 4c et of Fig. 4. Fig. et is a detail in vertical section on line 3 3, Fig. 3, enlarged.

The sashes A and B each carry a pivot-stud.V

c, rigidly attached to the outer edges of the stiles d, midway of their length, said pivots being mounted at their outer ends in the sashcarrying spring plates e and extending through the sliding wind-stops 'v and 2. The plates e are coniinedon'the ends of the pivots by pins e. Said plates are respectively suspended in the slideways f of the windowframe by a chain g, the ends of which are respectively connected' to the plates e of both sashes at one side of the window. The chain g passes over pulleys h at the top of the window-frame, thence under the pulley in block t', suspended in the bight of the chain in the open space j of the window-frame, and carries a weight k, balancing both sashes and allowing them to slide up and down, respectively, when open on their pivots. The chainsV g each have one or more fusible links, as f', which will part readily under heat, such as they may be exposed to in case of fire in close proximity, the effect of which on the lower sash will be to allow it to fall when raised, whereupon chains m--one to each side of said sash and attached to pulleys n on the pivots c, respectively, of said sash and suspended over pulleys o at the top of the window with a small weight p to take up the slack of the chain when the sash is raised and a stop qto limit the run of the chain when the sash fallswill automatically turn the sash upright and close it 'on its pivot when it reaches its normal position. Pulleys n are located on said pivots next to the spring-slides e.

ln the case of the upper sash its corresponding chains mi, attached to its pulleys n' and passing over pulleys o' at the top, are connected to the pulley-blocks i, so that the falling of the weights 7c will turn said sash on pivots c into the upright normal closed position.

The chains m' are connected to the pulleyblocks with an intermediate coiled spring r to each to relieve the shocks of the transference of the weights onto them. Veights m2 on the chains m take up the slack of said chains when said sash may be shifted upward while open, said weights being adapted` to slide along the chains when there is a drop of slack.

The pivots c are xedly secured in blocks 8,.

oc, attached to the spring-slide e, which press' the stops o and 2 against the sash-stiles. The stops o are perforated at y for allowing them to be forced back by the sash-Stiles out of the grooves of the stiles when the sashes are turned on their pivots. In. addition to these stops n I have provided other stops 2 to pack-against the plain margins 3 of the stiles. Said stops are best shown in the horizontal section of Fig. 3. The sides 4 of these stops reach back into the slideways f of the side members 6 of the window-frame, and said stops have an intermediate groove S for the sides of the stops o, and in the bottom of groove 8 is a reverse groove 7, providing space for said coiled spring w, located on the pivotstud c, between the bottom of said groove' 7 and the sash-turning pulley, 'by which said Ico .pivoted sashes, spring-plates carrying the sash-pivots, chains and pulleys suspending and balancing said pivot-plates and sashes, and the weights suspended in the chains intermediately of the sashes.

2. The combination of the upper and lower pivoted sashes, spring plates carrying the sash-pivots, chains and pulleys suspending and balancing said spring-plates and sashes, said Chains having a fusible link, weights suspended in the chains intermediately of the sashes, and the stop-Chains and pivot-turning pulleys ofv the lower sash for closing said sash when the sash-balancing chains part.

3. The combination of the upper and lower pivoted sashes, spring-plates carrying the sash-pivots, chains and pulleys suspending` and balancing said plates and sashes, said Chains having a fusible link, weights suspended intermediately of the sashes, and the chains connecting the upper sash-pivots and the Weights for closing said upper sash when the sash-balancing chains part.

t. The combination with the frame, a sash, and the intermediate Wind-stop, of the Windstop for the margins of the sash-Stiles, said stop having the sides entering the framegroove, and also having the reverse groove for the intermediate stop and the packingsprings respectively.

Signed at New York this 6th day of March, 1903.

LARS CHRISTENSON.

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