Патент USA US2406942код для вставки
Sept0 3, 1946. H. J. BUTTNER » 2,406,942 ` SEALED DOORS Filed Oct. 25, 1945 3 Sheets-Sheet l SePt- 3, 1946. H. J. BUTTNER SEALED DOORS 2,406,942 v Filed oct. 23, 1943 - 5 sheets-sheet' 2 70 ....Aw. 66 y . ,. 62 Bnventor rn Patented Sept. 3, 1946 UNITE 2,406,942 STATES _ PATNT 2,406,942 OFFICE SEALED Doons Horace J. Buttner, Indianapolis, Ind., assignor to General Motors Corporation, Detroit, Mich., a corporation 0f Delaware Application October 23, 1943, Serial No. 507,399 6 Claims. (Cl. 20-16) l 2 This invention relates to closures such as doors to exclude or keep out noises and gases which are produced in rooms or chambers for testing 5, showing a modiñed form of closure having hinged doors instead of sliding doors. Figure 5 is a section on the line 5_5 -of Figure 4. Figures 6 and 8 are views, similar to Figure 3, aircraft engines. The usual testing space or room for aircraft ' ' engines comprises a room in which the engine is ~ of a modiñcation. Figure 7 is a section on the line 'I-l of Figure 6. mounted on a block, while adjacent thereto and separated by a wall having a transparent panel and a door, there is a second room for the ob With reference .to the drawings, the numeral 2 indicates the wall between adjacent rooms, and 4 :the floor ofthe rooms. The wall and floor may be made of any suitable material such as concrete, are a plurality of instruments and controls to 10 brick, wood and plaster, etc. The wall is -pro~ test and to operate the engine and determine its vided with a door opening 6, and to each side of reliability or efficiency. the Wall at the opening there is applied an angle In making these tests, it has been found that sha'ped frame member 8 which extends across the the door between the engine room and the opera 't top of the opening 6 and down the sides. At the tor’s room has allowed noxious fumes from the 15 bottom of the opening and depressed iin the iioor engine to enter the operator’s room, and there 4 a channel-shaped frame member Iii is secured. also has been transmitted a considerable amount This frame member I0 has the flange I2 directed server and tester and in this second room there " of objectionable noise caused by the operation of the engine. Both of these are objectionable from the operator’s standpoint, and in a measure de v inwardly of the door. `Secondary frame members I4, extendingalong the sides and top of the open 20 ing 6, are secured to »the frame members 8 by tract from his careful observance of the instru means of the bolts IS. A fabric or rubber strip ments and the observance of the operation of the I8 is placed between the main frame members 8 engine. and the secondary frame members I4 to form a To eliminate the transmission of noises and seal. At the bottom of the opening 6 and over noxious fumes from the engine compartment to 25 the flanges I2 there are secured the secondary the operator’s compartment, the closure between frame members 20 which cooperate with the the two rooms was redesigned so that there will frame members I4. be one door on each side of the wall or partition, At each side of the opening 5 there is mounted and in closed position these doors will rest against 30 a sliding closure or metal door 22 and, as the a sealing strip of yieldable material such as rub structure of both doors and the mounting thereof ber, and by evacuating part of the air between are similar, the structure and mounting for but the two doors, the outside air pressure causes the one will be described. The door extends down doors to be tightly pressed against the sealing wardly into the channel of the lower frame mem strip to make a closure which is substantially ber I0, and at its lower part has secured thereto gastight and substantially soundproof. This clo a iiexible flap 24 which overlaps and covers the sure, it was found, removes the disadvantages of channel II) when the door is in closed position. The ñap 24 may be secured to the door by means the noxious fumes and diminishes the noises to a of the metal strip 26 and the bolts 28. degree where they are unobjectionable. The closure of the invention is also applicable 40 At the top of the door there are secured two brackets 3û each of which has a flange 32 at its to other uses such as refrigerators where it is upper end. A bolt 34 extends through the flange desired to prevent exchange of heat and the and is retained thereon by a nut 35. The bolt escape of annoying gases such as ammonia fumes. passes through a head 38 and suitable nuts 4E! On the drawings: 45 above and below the head hold the bolt in place Figure 1 is a face view of the partition or wall in the head. Extending laterally from the head between two adjacent rooms with the sliding door are axles on which are mounted wheels 42 which shown in elevation in closed position. run on tracks 44 at the bottom of a channel Figure la is an enlarged detailed View of the shaped member 46 secured to a bracket 48 which door mounting. 50 is secured to the frame ymembers 8 by means of Figures 2 and 3 are sections on an enlarged bolts. The track extends beyond the width of scale on the lines 2-2 and 3_3 of Figure l, the the door as is shown in Figure 1, and by sliding intermediate part of the doors and the wall being the door to the left the door opening 6 is exposed broken away to facilitate the illustration. to enable passage from one room to the other. Figure 4 is .a section on the line 4-4 of Figure 55 Each auxiliary frame member I4 at each side aioaofia fi 4 of the opening lâ has secured thereto a channel iron 5l) in which there is secured a soft rubber strip This channel 50 and the rubber 52 ex opening lli and a strip of rubber fabric 9i) or other resilient material is secured to the frame 88. 'I‘he tend along the sides of the opening and across frames S8 at the bottom of the door are mounted in the channels Se. the to-p while at the bottom a rubber strip 54 is secured by means of bolts and nuts 56 to one of the iianges of the U-shaped frame member l0. In the closed position oi" the doors, the door edges In the position oi the parts shown in Figure 6, if air be forced through the inlet pipe 92 into the conduit Ella, the air pressure will press overlap slightly the rubber strips 52 and 54, and tight seal. the doors against the material Si) to form a When the air pressure is relieved, if the air between the doors or in the opening 6 10 the doors 22 can be slid into the recess 'i8 to as shown in Figure 2 can be exhausted, tending enable access to the testing room. to create a vacuum in the space between the In Figure 8 a chamber or cabinet 95 is mounted doors, the air pressure from the outside will cause in the wall lll. This chamber is open at its in the doors to be pressed tightly against the rubber ner and outer sides and these openings have strips 52 and 5d and form a tight seal. 15 doors 22a hingedly mounted thereover. The In order to enable the evacuation of the air, doors are mounted to swing inwardly of the cab there is provided a pipe or conduit El] which leads inet '94. from the inter-door space to the outside, and by The door openings have the edge flanges y9S connecting any pump to the exit 62 of the con and a rubber or fabric strip 90 is secured to duit Gli, the air in the space between the doors can 20 the flanges. With the parts in the position be partially evacuated to reduce the pressure and shown, air forced through the inlet pipe 92 and to give what may be called a pneumatic seal be through the conduit will cause the doors 22a to tween the chambers. It has been found in prac be pressed against the rubber SB to form a tight tice that this seal will prevent the noxious gases seal. When the pressure is relieved, the doors from the engine reaching the operating room and 25 may be moved inwardly on their hinges to enable will also eliminate the objectionable noises caused passage through the chamber 94. by the operation of the engine. I claim: It desired, suitable expansion joints 54 may be l. In a wall having an opening therethrough, provided in the iioor. a closure for said opening comprising two doors In Figure e, the structure is shown as applied 30 controlling access into said opening from both to a closure which has hinged doors 22’ instead sides of the wall, means secured to the wall and or" the sliding doors shown in Figures l-3 in supporting said doors for movement >to open clusive. The doors 22’ are hinged at 65 and each positions enabling access into said opening and door opening e is provided with the frame mem~ to closed spaced positions closing said opening, bers ß’ at both edges thereof, These frame mem 35 sealing means adapted to be contacted by said bers are secured to the walls 2 by means of the doors when closed, the ñrst-mentioned means bolts 63. The frame members B’ extend on the and wall defining with said doors and sealing i’our sides of the opening and have at their outer means a closed space when said doors are closed, edges the soit rubber sealing strips 52', secured and means communicating with said closed space by the slats lili, and against these soft rubber to enable changing the air pressure in said closed strips the edges of the doorsI 22’ abut when the . _« space to cause said doors to be pressed against doors are in closed position, as is best seen in said sealing means in substantially gastight rela Figure 4l. rl‘he doors 2?! may be made of any tion. suitable material, and in the drawings they are 2. In a wall having an opening therethrough, shown as being made oi a panel comprising lami a closure for said opening comprising doors nated wood held together between edge frame . _ secured to the sides of the wall and controlling members ‘lit access into said opening, peripheral sealing means It desired, the walls 2 may be provided with mounted near the edges defining said opening any suitable soundprooiing material l2. and adapted to be contacted by said doors when With the doors in the position shown in Figure closed, the doors when closed being spaced and 4i, a pump is applied to a conduit 6€! (not shown closing said opening to define with the wall a in Figures ll and 5, but see Figures 1 and 3) to closed space, and a conduit communicating with exhaust the air between the doors 22’ to create said closed space to enable changing the air pres» a zone of reduced pressure in the space between The outside air pressure will cause 55 sure therein to cause the doors to be pressed against the sealing means in substantially gas the doors to be pressed tightly against the rubber tight relation. strips to seal the closure and form a sound« 3. In a wall having `an opening therethrough, a proof and gas proof closure in the wall 2. closure for said opening comprising a door se In Figures 6-3 inclusive, two species of sealed cured to each side of the wall, the doors when door arerdisclosed which operate with air under 60 open admitting access to said opening and when pressure instead of with exhausted air. In Fig closed overlying said opening, sealing means eX ure 6 the wall It is provided with a door opening the doors. tending 'entirely about and around .said opening, ‘E6 and a recessed wall part 13. A metal frame the doors when closed defining with the wall a member El] is placed on one side of the wall and metal frame members 82 and S4 are placed at 65 closed space, and a conduit communicating with said closed space to enable reduction vof air pres the opposite side of the opening at the ends of sure therein to cause the doors to be pressed the narrow wall parts lila and 'hib formed by against the sealing means in substantially .gas the recess lil, The bottom of the door opening tight relation. ` . has the channels 33 countersunk therein and 4. In a wall having an opening therethrough, a which extend into the recessed part 'F8 to the 70 closure for said opening comprising spaced doors end thereof. At the top of the opening the doors controlling passage therethrough, means securing 22 are suspended by a structure such as shown the doors within said opening and having periph in Figures la and 2. eral sealing means near the edges delining said An angle-shaped metal frame 88 is rigidly mounted at the inner and outer sides of the door 75 opening, said wall having a recess providing with~ 2,406,942 5 6 in the wall an extension of said opening adapted changing the air pressure in said closed space to cause the doors to be pressed against the sealing means in substantially gastight relation. 6. A closure for an opening extending through a wall, said closure comprising two spaced doors to receive the doors when open, said sealing means .being in continuous contact with the doors when closed, and a closed space being provided by the closed doors with the ñrst-mentioned means and said extension in the wall, and a conduit com municating with said closed space to enable in creasing the air pressure therein above atmos pheric pressure to cause the doors to be pressed against the sealing means in substantially gas 10 tight relation. 5. A closure for an opening extending through a Wall, said closure comprising two doors, means for securing the doors in substantially gastight relation to the wall and for supporting the doors for movement to open positions enabling access into said opening, and sealing means adapted to be contacted continuously by said doors near their peripheries when in their closed positions, the first-mentioned means and closed doors defining a closed space, and said closure having means communicating with said closed space to enable and means for supporting the doors for move ment to open positions enabling access into said opening and to closed positions closing said open ing, said means being adapted to be mounted in said opening in substantially gastight relation to the wall and having sealing means adapted to be contacted continuously by the doors near their peripiheries when in their closed positions, the ñrst-mentioned means being substantially gas tight and deñning with the closed doors a closed space, and the first-mentioned means having means to provide communication with said closed space to enable changing the air pressure therein to cause the doors to be pressed against the 20 sealing means in substantially gastight relation. HORACE J. BUTTNER.