US812377A - Door-frame, door, and adjunctive mechanism for air-tight compartments. - Google Patents

Description

YATENTBD FEB. 13, 1906. S P. STEVBNSBN. DOOR FRAME, DOOR, AND BDJUiEGTiVB MECHANISM FOR AIR TIGHT CDMPARTMENTS.

APPLICATION FILED mu 24,1901.

Y fiwevztor: WJW J '6 wi l? 4gb A PATENTED FEB. 13, 1905.

No. 812,377. V

S P. STEVENSON. DOOR FRAME, DOOR, AND ADJUNGTIVB MEUHNISM FGR AIR TIGHT GOMPARTMBIQ TS. urnwmmn Him JULY24,'19G1.

2 SHEBTS-BIjEET 2.

used. s e oser'a gmnme e for its object the fa. 'tybi iltrarie 'aiid s.. PRIOE TEVEiiSON. OF CHESTER, PENNSYLVAHLA. noon- FRAME, noon. AND ADJUNCTWE mzcnnigsm roa AlR-TIGHT commmrm.

no. 812,377. I

Specification of-Letthrn intent.

Patented Feb. 13, 1906.

i guuinon m in, 24,1 1. Serial a. 00.5%.

Ad3unotive' Mechanism for Air-Tight-Com-' Partments, 9 h l jhi fllowingis a. speeifi-i cation.'. m

This a e-Rebirth tested) apartments, .engiinoref igertioui from such sp ertments'jvithethe iesss dare-? off intr uQ g1endrenibYihg.-Qb eats: by trblleyen'df suspended railway Witli'a! gl ih shqfprmqi e dqorl' 0 this 'end this'invention' consists in an improved enlist-motioned; edjustgble 5 door- Zas'hereine terd mjb di'mg rs andelosing them,

supendedf s'aiil endl gggsitiyeljgzeoimected meansoio eningseid Figure 1 showsa I- 'irame and door in'elosedjpositioi i embodying this invention: Figsgshows'le side elevation thereof; Fi 3 shows n rear elevation there- .of. Fig.-;4; s ,ows a. yertieel seotion thereof; in closed position;-F1g."5;: e-vertical section; thereof. in open. position} i 6 shows I a; modified form in front idle'yatipn. Fig; F'- shows aneniarg jront' view'ofthe meohena the linte e and the lowere'nds of the j'amhs ii and b ext 1d downwardly below the uppgr surface of it 1e sili hand are secured tothe so It by nailing themfi'lhe 'sill or threshnhfk;

extends laterally beyond the, dooiopeiiing in front oi-theiower ends of the casings yni'hioh areettaohiad thereto, and thus strengthened, so as to giupport the fulorums of extended hinges, (shown in Figs. 5-end 6,) such as are described," nd' claimed in my Letters Patent ,No. 647,5 6, dated April-17, 1900, and shown Q tinge shovnin the ee-i .hm'egrooved-at the inner Si es,

0111 eieyetion of ii door the inner side, which rests against t on}, so that the fei't opens to pass over. the no, closing over it in my Letters Patent No. 697,689, dated. April 15, 1902. r

in the jambs a and b are out grooves iend 3, into which are fitted blocks 1c and I, extendmg inwardly to within a short distance from the center of the doorway and having their front edges flush with those of the jembs o end'h. Grooves m and e are out in the upper sides of the block I: end E, into which are fitted tongues o-end 3:, formed on blocks g geed-s; the'npp'er ends o'r'whieh ere fitted in ores 8 aud t,- ont in theunder side of the ei"'e.l The front faces or ed es of the blocks and land g end r are fins or infihe' same plane with the front edges of the jambs a .andband of the iintele. Casings 'ysuflicientl 'oibing tivisted'ont of e flat plane to conform to any devietionsjroin flat plane in the door) are secured to the front edges offlthe jambs a and the lintel e, blocks 7c and land I V 'g and ref theimme, and tothe sill it. "A door 1y; withfiiveglafiping edges w, is hung byextended hinges if from the front casing g, the

edge w restn'g egaiinst the frontoi the casing y when closed; and sealed by a gasket 2:, in.

terposed betweeix the overlapping ed e wand the front of' the casings y, ettaohe to the front 05 the frame;

:3 A sfnaii doer or shuttei e is hon'i by hinges 1 iizi'its upper edge from the-casing y and has oyerlepping edges -2fo1i theupper edge and sidesgvhich when closed rest. upon the casing 31. The shutter, 2 has also a projecting 1i ;1

e inner side .of thedoo'r u When-closed, being th'us held iii'lelosed positionhy the door at. The edges? are fitted with ket :5, similar to that on the door u,.'exten ing across the door The dohr z is Frovided with e slit or cleft i whieh fits loo'se y over the suspended rail 5. This'sht isoovered with a piece of felt f or other fehriq' xtendmg downte the gasket 2:. on the dooru, having an opening through it to fit the rail 5, imd .with a scissor-out extending d'ownwerd to itslower end. The inner margin of the cleft 4 m the door zis rounded I greotioeily air-tight and leav ng no apprecie le leak at any mints The front cash s y extend downwardiy be- 3 uponlow the u iper on ice of the sill h, which sill h.

extends forwardly from the door and is beveled downwardly for a. portion of its thick uses, as shown. 111 the part marked 6 in the drewings. This oonstruotion of sill or threshthe packing to clear the floor in the open 1347,580, dated A ril 17, 1900, and'described 'llllli 21.

- xlt'lYt' 31%, having a vortical pivot 51 fitted to old is nda )ted to be let into the lleor,se that [he 'loor-l ramo when erected is held securely at the lower end by the floor and presents no abrupt break in the flodr to obstruct the pas saw or cause jolting of wheeled trucks or other vehicles, such joltinlq bein very damurging when occurring to crates e eggs in enluring or leaving cold-store 0 apartments, and, further, it avoids the thin and perishable edge incident to sills or thresheldsas usually constructed and fastened upon the surlure of the floor. The thickness of the sill iii the doorway above the level of the floor in front thereof provides an elevated surface for vollluct with the packing, which 'seals the lower end of the door when closed and allows position of the door. The lowcrcorner 7 of the door u is strengthened by 'cleat 8, secured thereto to protect it from injury by collision with trucks entering or leaving the doorway;

The door u is preferably hung flrein the easing 1 and jamb b b hinges sue 1 us aredescribed and claimed 1n my Letters Patent No.

23nd shown in my tters Patent No. 697,689, uted April 15,1902.

The small door or shutter z is connected wit h am operated by the door 14 by a mech-' anism ronsistin ef leversandlinks' constructed as follows: bracket 19 is secured'to' the upper part of the door 11, and has project'- nw arm 20, to which is pivotal! attached a The opposite-end oft e link 2 is pivotnlly attached to a lever-arm22, turning upon a pivot 23, sup orted by a plate 'or bunring 24, secured to t e casing 3 Attached to or formed with the lever-arm22 is a slotted mun 25, in the slot 26 of which a roller 27 is engaged. The roller 27 is ivotally attached to the 111111.28 of an angleever 29, pivetally support 0d from the plate'24. The'othr mm :m of the love-r29 is pivotall connected with a link .i i, the opposite'end e which link is pivotidly svcurcdte a plate 32, attahhe'dto the door 2. The link 21 is made'of two parts 33 and 3 the part 33 fitting over the art'34 and is slotted upon one side so as to e eonlruviiblv, and is secured adjustahly on the art 254. by means of a clam ing-screw 35. In order In avoid the torsiona strains upon the links '3 I ulul 3 I ,due to the axes of their pivots lN'lllfi in dill'orent ilancs, the piveteonneetin the link .2! wit 1 the arm 20 is formed in a turn in l hrnrm 2t), and the pivot connecting the link :51 with the plate 32 is similarly l'ornw-l with a iivol. 38, littcd to" turn in a homing lit! in t io plate32, and a like con- 11 l'llll ion is provided at the end of the loverii ill 3W oonsistingol' a. pivot4tl having its axis .11 righ angles to the upper pivot of the link :i. 'l w dot .50 in the cum 25 is made in radini l lllil l ltilll the'pivut 23 through a sullio -.-i mo! of i|-: length to opi-ralo the roller'l? 0 and connected lever 28 and to impart a sulficierit motion to open the door 2 during a movement of the door u through an arc of thirty degrees' The remaining part of the slot 26 is in a circumferential direction, so that the door 2 is only operated at such time relatively to the door it as to always close the door 2 before the upper part of the door 11, cont-acts with the lower end or ii 3 of the door 2 and to move the door u clear of the uorz before the upper door z commences to B making the door-framc with the lintel tongued and grooved into the jambs I am ena'bled to twist the frame into adjustment so as to fit the plane of the door when .the door is warped or sprung without opening the joints, and h using flexible casings I am en- 'abled to ma c this adjustment without detaching the casings.

By extending the casings below the upper surface of the 'sill I clamp them securely, so as to strengthen them in their attachment to the door-frame and materially brace them to' sustain the strain of the hingesattttched to the casing. I a

By attaching the hinges to the casing instead oi to the jambs of the (lOOFfiflIIlG, the

door is alw'a'ys held in proper adjustment to the casin' and the doors and frames as fitted to can other at the factory remain in arljustment ready for erection and use.

Having described my invention, what 1 claim is l. The combination of a door for an air-' tight apartment; a deer-frame having a port above the'door-opening proper and adapted to permit the passage of a rail with a free space'between its track and the upper por-- tion of said'port; a shutter hinged to e door frame above said port; said shutter having a three hout a portion of its height, whereby said sl iutter ma the i'nterspaco ii etwecn said port and the top and sidesof said rail, substantially as set forth.

2. The combination of a door for an air tight apartment; 9. door-frame comprising jambs a, and 6, a lintel e, blocks k, l, r, and g,

'a casing 3/, provided with a portwhich is adapted to permit the passage of a rail above said door with a free space between said track and the up or portion of said port; a shutter hinged to t to door-frame above said port and provided with a slot extending vertically from rts lower edge throughout a portion of its height, whereby said shutter may be swung downward to close the in tei'spat'c between said port and the top and sides of said rail,

substantially as set forth.

It. The combinationof a door for an airtight apnltlmmt; odour-frame therefor pro- -vidod with a port arranged above the doorol ioning, and adapted to permit the passage a red with a free spur-e betwhon Its truck vertical slot extending from its lower edge be swung downward to close and the up" ei' portion of said port a shutter hinged to t e door-frame above eai art and haying a vertical slot extending to its lower edge throughout a ortion its hei ht, the lower margin of sai shutter exten downward below the bottom of said port an into the opening for the door, but substantially flush with the face of the door-frame,

whereby saidshntter can be swung downwardly to close the interspaee between said 'gort and the sides and top of the-rail and the cor proper can be closed upon the lower margin of said shutter, substantially as set fort 4. A door for an air-tight apartment; a do0rframe having a port adapted to permit the assage of a suspended {ad with a free space etween the track thereof and the top of said port; a shutter hinged to thedoor-frame and a shutter tted to close said rt, in combination with aposi-tive means 0 openin and closing said shutter from the motion o the door, and arranged to elose shutter before closing the door andto open the door before openinil the shutter as and for the purpose set fort t 6. In a mechanism for operating a shutter and door for closing the doorway of airtight apartments, a cam connected to and renew ing'moti'on item the openin and closing of the door, and having a slot 1; erein engaging arolier' 'oonneeted with said shutter, said slot having such configuration as to impart motion to the shutter during a portion of the motion of the door and hoid the shutter in fixed position during another portion of suoh motion as set forth.

7. In a door-frame and door for air-tight apartments, a port for a suspended raiLtrask and a shutter fitted to open and eiose said port, in oornbination with a mechanism com 'neotmg said shutter with said door awe-nerd to open said shutter as soon the .001 opened sufficiently to elear said shutter and to hold said shutter open during the furthez opening of the door substantially as so? forth.

8 In a refrigeratin apparatus, the combinsltion of a housing aving a door edeoted toolose an entrance, and an opening a eve the door, piates adapted to cover said an em ing, a iever, connections between said pnttes and the said lever, a means for set-eating the lever and thereby opening or closing said lates simultaneous with the opening 9?? triesing of the door.

S. PRICE STEVEI'QSGE Witnesses:

C. R. MORGAN, S. LLOYD WIEGANIL

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