Патент USA US2134050код для вставки
Oct. 25, 1938. w. c. KIMBROUGH 2,134,050 ’ GAS TRAP Filed Feb. 27, 1937 i6 1__L 119 1a 3nventor BB W.C.Kimbmugh WIWW 2,134,050 Patented Oct. 25, 1938 ma 72,134,050‘ GAS TRAP Warren 0. Kimbroug-h, Omaha, Nebr. V I _ _ _ Application February 27, 1937, Serial No. 128,208 3 ‘ _ 3 Claims' (01, ‘is-I193) .fThis inventionarelatesvtoi gas detectors,-and more ‘particularly to gas traps andhas for an ob ject tolprovide ‘means. for detecting whetheror not a gasmain' or pipe in a street has become I5.‘ broken: and-to~ provide means for preventing poisonous fuel’ gases from entering a dwelling. ‘ - 1A, further» object of- the invention is to provide means for'the above stated purposes which are economical in construction and may be readily to installed for usein connection with gas pipes ther'etofore buried in an'd'below the service of’ the ground, said means: adapted to warn the occu pants of a dwelling of the escape of poisonous gas thereby ‘giving opportunity to check dangerous ll g'as'leaks'and for repairing the pipeconductors of shown-for supplying gas for conventional fuel purposes in a .wellikn‘own manner. At this‘ time the pipe ID is installedina trench and loose earth 5 filled into the trench about‘the pipe. In manyin stancessaid earth‘ settles away from the bottom ‘oflthepipe, providing thereby an open-passage way "through which igas‘which escapes from a broken‘ main‘ may flow or is forced by pressure of 10 gas escaping from the ‘said main in instances where the latter is broken, said 'gas‘following along said passageway and traversing the bottom of the pipe‘and'entering a dwelling through the brick'walls of 'the‘ibasement, particularly in’ in- '15 the'inv'ention will‘be understood from the follow: stances where the foundations of the dwelling do not extend‘ below ‘the pipe l0, and’ the‘new device is adapted to prevent deadly andv noxious gases ingfd'etailed description thereof, reference being from entering said dwelling. saidgas. Other'and‘ further ' Y‘ objects and advantages of 20 had to the accompanying drawing in which: "'}_"Figure§1 isa longitudinal vertical section of the ‘25 the end I5 of said pipe is closely adjacent to‘and enters through a basement wall or a dwelling, not ' _ ‘ The gas trap of the present inventionincludes 20 a hollow housing having side walls’lG and end invention installed in 'a position of use in con Walls l'|= which are joined together providing a nectioniwitha pipe conductor of poisonous fuel gasesjthe vlew"be'i'ng‘taken substantially on line having an open bottom, the lower edeges 18 of of Figure 2,, ' ' i ' ' frame'which is rectangular‘ in plan,- said housing ‘said Walls are disposed below the level of the 12.5 V > ’" Figure 2 is an" end view of‘ the said device. _ " " Héret'ofore resultant from theintensive cold of pipe ill, in use. Opposite disposed notches I9 being provided in oppositely disposed sidewalls wintersfffrost entering the ground and the like, asgw its other; causes, the alignment of ‘gas the oppositely disposed ‘sidewalls of said notches ' ‘ .30 pipe'sl-"o‘r'imains becomes disrupted, causing fuel for permittingthe housingto be lowered,'whereby receive the pipe 10, therebetween and whereby 3-9 a gas to leak therefrom and since said pipes are ‘ the pipe _ l4_ extends longitudinally through said buried below the 'surfacefof the ground the gas ' housing and notches, a hole having been ?rst does not escape to the atmosphere, but follows ‘along the loose‘earth about and ‘specially ad to (a ja’c'e'nt‘the bottom of the pipe, seeking an escape specially-as'thepressure supplied by'the main increases," whereby the gas ‘follows ‘lateral branches of ‘the main and enters basements of dwelling houses'wpois'oning the occupants vthereof 4D and said causes during the'preceding winter in the city of Omaha, Nebraska, did occasion several fatalities ‘to the sleeping occupants of several dwelling houses and it is an objectof the inven 40 dug from the surface ll of- the ground to a point below and in vertical alignment with the pipe l0. »"-I‘he ‘housing‘is preferably‘“manufactured with =35 a detachable roof >20, the-latter being preferably of pyramidal shape, having an outlet 2| at the top portion or apexthereoi and ?anges 22 at the vbase of said pyramid, said ?anges extending in parallelism with the‘ walls I6 and-l1, the latter 40 being provided ‘ with _~ccmplernental receiving troughs 23 for the flanges as shown in Figure 1. tion to obviate the undesired practices of the Theloutlet ‘2| ‘is preferably provided with‘an upstanding neck-24 adapted to receive‘ thereover prior art.“ a‘ conduit '25 which during installation may be ¥45 , I ' ‘ rivetedorotherwi'se suitably secured to said neck. Referring'now to the drawing for a more par A conduit 25 extends above the surface l2 of ticular description, 10 indicates a pipe conductor of and for gas, the latter normally ?owing 'the ground and is preferably provided with a through the pipe in the direction of the arrow H, gooseneck or semi-circular portion 26 whereby the a 50 the normal position of said pipe being below the free end of the conduit or the open end 21 there- 50 of is closer to said surface llv than the semi surface l2 of the ground I3. It will be understood that the end M of the circular portion 26 for preventing débris from en pipe is in communication with a supply of gas tering the housing through the conduit such as under pressure from a main, not shown, buried might otherwise enter by means of unauthorized 55 under the surface of an adjacent street and that persons, children or the like placing said débris 55 2,134,050 in said conduit and, if desired, a screen may be placed acrossrthe open end of said conduit and Preferably the roof 20 is provided with-a plu rality of hoods 3| having open ends which func secured to the latter. tion for the same purpose as the hoods 29 in 4 connecting stray gases and concentrating the As best shown in Figure 2, one of the notches I9 is of lesser transverse width than the other, said notch of lesser width being diposed towards the dwelling and means are provided for plugging or closing said notch, said means preferably com prised of split washers which collectively are 10 adapted to encircle the pipe I0 and abut the latter for saidv purpose,.s'aid washers being secured to same for discharge or escape through the outlet 2|, whereby detection of gas leaks is facilitated. It is obvious that various changes and modi ?cations may be made in the details of construc tion and design of the above speci?cally described embodiment of this invention without departing 10 from the spirit thereof, such changes and modi ?cations being restricted by the scope of the in the adjacent wall l6 during installation, where by gas is prevented from ?owing outwardly of the . vention as claimed. housing and toward said dwelling along said pi What is claimed is:— 1. A gas trap comprising a hollow housing 15 The notch opposite to said smaller notch is having side walls, means for permitting the ap plication and withdrawal of the housing without of larger area or transverse width than the di ameter of the pipe I4 and remains open in use for disturbing the fuel gas pipe to which it is applied permitting gas following along the pipe Ill from including a roof and an open bottom, oppositely 20 said main to enter thehousing or trap through disposed side walls being provided with notches 20 15 and through said notch. ' said wider notch. ' The ‘roof of the housing is preferably manu factured removable from the walls thereof to opening. from the bottom edge of said walls, oppositely disposed‘ side walls of said notches adapted to be lowered about and receive‘ there facilitate installation and shipping and after between a pipe conductor of fuel gas while the 25 s‘aidhole is dug in the ground the walls are low ered and installed as abovedescribed, the roof latter is disposed below the surface of the ground, whereby said pipe extends through said notches andv said walls, and the’lower portions of said being ‘detached at this time, whereby the oper ator may stand within ‘the walls and settle-the ' walls are disposed below said pipe, one of said notches being of such awidth with respect to the latter ?rmlyintothe ground, packing ‘earth up 30 wardly of, the walls above the lower edges I8 diameter of said pipe that escaped gas may enter said housing therethrough, and means adapted thereof and securing the washers for pluggin the smaller notch as above, described. to encircle and abut ,said pipe for closing the ‘ 7 At this time if so desired, theoperator may other of said notches for preventing passage of install a transverse disposed rod orsupport 28 gas therethrough, said‘roof provided with an out 35 under the pipe ID, as shown in Figure 1, for ‘pre ' letadapted to be disposed above the surface of venting frostor the like from heaving said walls said ground for permitting communication of upwardlyof their selected position with-respect tothe .pipe i0; ¢The roof is now placed ‘on the walls and cement may be applied to the member 40 -23 for sealingtherflanges 22, if desired." The conduit 25 being placed in position, earth is re placed about the device and upon the roof there of until said earth reaches the level l2 or surface ‘of the ground. 2. A gas trap comprising a hollow housing having side walls, a roof and an open bottom, 'meansion oppositely disposed side walls for per 40 mitting fuel gas pipe to pass through saidhous ing, with the lower portions ofqsaid sidewalls extending “below said pipe and for permitting entrance of escaped gas to the housing through " > 45 M Inoperation'escaping gasfollowing along the pipe Iii ,as‘above described enters the hollow :housing, but is prevented from entering ‘the "50 gas from vthe housing to the atmosphere. ' ; ‘dwelling, said. gas escaping through‘the outlet ~2l of the roof- and the occupants of the dwelling upon‘detecting an escape, of gas by sense of smell ,rnayapprise workmen that the main should be repaired. In instances where several of the new one side wall and preventing passage of said es caped gas-through said side walls, ‘means carried ‘by the roof. for-'conductingthe escaped gas to the atmosphere, and hood means on saidihousing for collecting other escaped gas within said housing comprising a‘plurality of hoods each having an ,openbottom» communicating with the interior _of the housing and a closed top. devices are installed at different points along .the ' } , ‘ 3. ‘ A gas trap comprising a hollow housing hav ing side walls, a roof and an open bottom.‘ means on oppositely disposed side walls for permitting 55 fuel gas pipe to pass through said housing with »of at a-lessened cost for theisame and; as com pared to uncovering an extensive length of main _ 'the vlower portions of said side walls extending street, the place where the main is broken may 55 45 ‘be more readily located thereby for repair there » below said pipe and for permitting entrance of each‘ provided with an outstanding hood 29 hav ing-open bottoms and roofs 30 which are inclined and. preventing passage of said escaped gas through said side walls, means carried by the ‘upwardly and toward said side walls, said hoods .functioningto collect‘ gas which may be present about said housing but not entering the latter "as Ithrough the latter notch i9, said hoods being of roof for conducting the escaped gas to the at mosphere, and means cooperating with said'pipe vfor'r’naintaining the housing. in operative posi for locating a leak. _ Preferably the end walls I‘! of-the device are‘ escaped gas tothe housing'through one side wall particular advantage when installed in loose or sandy soils. . '~ ’ tion. ' IWARREN. C. KIMBROUGI-I.