US1052735A

US1052735A - Automatic fire-shutter.

Info

Publication number: US1052735A
Application number: US?8672412A
Authority: US
Inventors: Edward H Mcloud
Original assignee: Kinnear Manufacturing Co
Current assignee: Kinnear Manufacturing Co
Publication date: 1913-02-11
Anticipated expiration: 1930-02-11

Description

E. H. MOGLOUD.

, AUToMATm FIRE SHUTTBR.

APPLICATION FILED MAR. 28, 1912,

ptellttd F610. 11, 1913.

2 sHBBTs-sHEBT 1.

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Low-,735. mm NNN E. H. MUCLUD, AUTOMATIC m13 SHUTTBR.

PPLIATN LE) MAR. 23, 1912,l ha Patented. Feb. il, NH3.

A 2 SHEHTSSHBET 2.

ELGNEL on the shalf the Sha, 1]..

@5i SMM@ ik ng fai, t @s a -p 1g. Secure/i i next ighe, Bracket v me bam-@L rflhe s pmvldec with a 0n, the

Shown n md mit n in, the uccomp p1: r '1e1Goto J. View 'pai' being' u fu in plan 'View of A, the releasing; devices. Fifi". 3 is an Vuion o 'the relaasng devices sl1of,vin arrangei i201' automatic opemou. is a similar View Showing 'the relau a similar .f"

v toothed.

vices yeleasfed. Fig. 3 i@ and anotwr 1905111011 of me operated dev f2.3 can be, en dans; 31.' oo

f mg the vscen 0f the Shutter, Fi J, 53,36 Whe@ Qf-- few shoving; thc position u Fic Slmr is beging wlm I Mug the 1, or io normal ODG pin exi the wwe.

. to be engaged by the upper end of a dog pivoted at 36 on `the tace of the bracket when the pavvl 32 is pushed out' at its upper end by the action of the eccentric 22a on the ldog 33 when the shutter is coiled up after it has been released.

|The position of the parts as shown in Fig. l is for normal operation of theshutter, the levers 27 a/nd 25 being depicted as held up for release upon a dangerous rise of vtemperature.l ']n{Fig. 2 the said -levers are shown as released and separated and the. paWl 32 'thrown intoengagement with the toothed Wheel 23. Because the position of the eccentric 22a is indeterminate the dog 33 isA provided, and in the position of the parts 1n Fig. 2 the eccentric interferes with the completion of vits movement." in Fig. 3 the eccentric 22, as shawn broken lines, having moved to the opposite side, the dog' 33 is permitted to drop upon the lng 34 projecting fromthe face f the bracket. When' the eccentric 22a rotates with the barrel in the direction ofthe descending shutter the dog 33 rises and falls with each rotation. The pushing iup of the shutter or the rotation of tbe barrel inthe reverse or shutter Winding direction causes the eccentric 22a to bear down and outward upon the dog 33 thereby moving the pawl out of engagement with the 'wheel 23 and releasing the spring 21 and permitting the shutter to be raisedwithont resistance from it.v in other Words'the `spring 15 is relieved of the counter effect of the spring 21 and. the shutter restored to normal baia,v` ced condition. J@liter an actuation of the reasing devices andthe spring 2l, said spring can be rewonnd by turning vthe shaft 18 in' the proper direction to act when again released to uncoil the shutter. ln operation the tension on the spring l5 is increased/or decreased Without affecting the tension of the spring 21 because the latter turns withe the barrel in a uniformly tensioned condition. IThe tension of the spring 2l is constantly, in normal position, on the teeth of the Wheel or pinion 24:. `When the tberm ally controlled levers 27 and .25 are released as by a dangerous rise et temperature said levers swing downward but before the pinion or gear- 24 escapes from the Wheels '22 and 23 tbe\.beak of the pawl 32 is thrown into locking engagement with the Wheel 23. Therefore, becauselsaid Wheel 23 is locked by means of pavvl 23 to tbe bracket 8 the end of the spring on the shai't 2l becomes fixed and its torque is eaerted on tbe plug or collar 9 and barrel to nncoil they shutter.,

What I claim is:

1.v in a fire shutter, in combination, a rotary shutter-receiving member and a shutter maar/ss thereon, a tension member rotating with the shutter-receiving member, and means for releasing said tension member to operate on the shutter receiving .member to close the shatter.

2. In a tire shutter, in combination, a rotary shutter-receiving member and a shutter thereon, a tension member rotating With the shntter-receiving member, means for holding said tension membertensioned with the shutter-receiving member, and means vfor releasing said'holding means to permit the tension member to close the shutter. Y

3. 'in' a fire shutter, in combination, a rotary.shutter-receiving member and a shutter thereon, a'shaft in one end thereof, a tension member connected With the shaft and shutter-.receiving member, toothed Wheels on the shutter-receiving member and said shaft, movable means carrying a Wheel to engage both said Wheels and permit their rotation, and a pawl controlled by said means for engaging the toothed Wheel of theshaft member When the Wheel engaging both toothed Wheels is Withdrawn.

Y' 4;. In'a fire shutter, in combination, a rotary shutter-'receivingl memberand a shutter thereon, a tension member Within the shutter-receiving member and: rotative therewith and means for releasing said tension member to operate on the shutter receiving member to close the shutter.

5. In a fire shutter, in combination, a rotary shutter-receiving member and a shutter thereon, a tension member Within the shutter-receiving member and rotative /there- With, and means at `the exterior of the shutter-receiving member for releasing said Vtension member to operate on the receiving member'to close the shutter. Y

6. lin a ire shutter, in combination, a shutter-receiving member and shutter thereon, a' tension member to cause the closing of the shutter, means rotating with the s/liaitterreceiving member for locking said tension member in tensioned condition, and means connected with a iixed part `for releasing such tensioned member for action on the shutter-receiving means to cause the shutter to close. i

7. ln a fire shutter, in combination, a rotary shutter-receiving member and a shutter thereon, a shaft in one end of said 'receiving member, a tension member connecting said shaft and shutter-receiving member, toothed Wheels on the shutter-receiving member and said shaft, movable means carrying a Wheel to engage both said Wheels and permit their ice rotation, and means automatically operative to engage the toothed Wheel oit the shaft 3.25 member when 'the Wheel engaging both i Loeegsa member, a tension member connecting said shaft and receiving member, toothed Wheels on the shutter-receiving member and said shaft, movable means carrying a Wheel' to engage both said Wheels and permit their rotation, means automatically operative to engage the toothed Wheel ofthe shaft niember when the Wheel engagingr both toothed Wheels is Withdrawn, means for automatically causing the disengagement of.' said means when the shutter is raised after its release and automatically operative means to hold said means disengaged.

9. in a fire shutter, in combination, a rotary shutter-receiving member and a shutter thereon, a tension member for the normal operation of the shutter, a second tension member rotating with the shutter-receiving member and means for releasing said last named tension' member to operate on the ehuHer-receiving` memberto close the shutter.

i0. in a re shutter, in combination, a rotary shutter-receiving member andi a shut terthereon, a shaft in one end of said receiving member, a tension member connectingV said shaft and receiving member, toothed Wheels on the shuttenreceiving member and said shaft, movable means carrying ,a wheel to engage both said wheels on said shutter-receiving member 4to 'release said shaft holding means.,

ll. In a re shutter, in combination, a shutter, a barrel and enclbrecliets for supporting the same at its ends, a plug in one end of said barrel having an extension through the adjacent bracket, toothed Wheel secured on said extension, shaft extending through saicl plug and extension into the barrel and having a toothed wheel, a spring connecting said shaft anti barrel, said @aft beingI rotative with respect to the barrel to tension the sprimgg:y movable .means to jointly engage said toothed Wheels to lock said sha-ft from rotation with respect to the barrel but permit the barrel and spring to rotate anal means to automatically engage and hold said shaft from rotation when said jointly engaging means is released from the toothed Wheel of the barrel.

EDWARD El, MGCLUB. Witnesses ALBERT Ross', ANNA Tannen KING.