US3088309A - Flammability testing apparatus - Google Patents

Flammability testing apparatus Download PDF

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Publication number
US3088309A
US3088309A US11601A US1160160A US3088309A US 3088309 A US3088309 A US 3088309A US 11601 A US11601 A US 11601A US 1160160 A US1160160 A US 1160160A US 3088309 A US3088309 A US 3088309A
Authority
US
United States
Prior art keywords
flame
base
carriage
patch
fabric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US11601A
Other languages
English (en)
Inventor
Jr Clyde C White
Robert L Amsler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Monsanto Chemicals Ltd
Monsanto Chemical Co
Original Assignee
Monsanto Chemicals Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to NL125639D priority Critical patent/NL125639C/xx
Priority to NL261323D priority patent/NL261323A/xx
Application filed by Monsanto Chemicals Ltd filed Critical Monsanto Chemicals Ltd
Priority to US11601A priority patent/US3088309A/en
Priority to GB5314/61A priority patent/GB918716A/en
Priority to DK66461AA priority patent/DK104265C/da
Priority to FR853558A priority patent/FR1283428A/fr
Priority to DEC23464A priority patent/DE1132361B/de
Priority to CH227461A priority patent/CH376294A/fr
Priority to BE600746A priority patent/BE600746A/fr
Application granted granted Critical
Publication of US3088309A publication Critical patent/US3088309A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/009—Methods or equipment not provided for in groups A62C99/0009 - A62C99/0081
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility

Definitions

  • This invention relates to flammability testing apparatus and more particularly to apparatus for testing flammability of carpeting material.
  • Another object of this invention is to provide a device for applying a flame to a material for testing the flammability of the material.
  • a further object of this invention is to provide a device for applying a flame to a patch of carpeting material and for traversing the flame across the patch at a predetermined speed and for a predetermined distance.
  • Still another object of this invention is to provide an automatic device for uniformly testing the flammability of carpeting material by applying a flame to the material and moving the flame across the material at a predetermined rate and for a predetermined distance.
  • One embodiment of this invention contemplates a device having a table adjustable in height for supporting a patch of carpeting material and also having a mechanism for applying a flame to the patch of carpeting material, traversing the flame across the carpet at a predetermined speed and for a predetermined distance and then elevating the flame away from the carpet. The carpet is then inspected to determine the extent of the burning.
  • FIGURE 1 is a plan view of one embodiment of the invention showing the general layout of the apparatus
  • FIGURE 2 is a cross-sectional view taken on line 2-2 of FIGURE 1 showing a cam for elevating a table which supports a patch of carpeting material to be tested;
  • FIGURE 3 is a cross-sectional view taken on line 33 of FIGURE 1 showing the mechanism which applies the flame to the patch of carpet;
  • FIGURE 4 is a schematic diagram of a circuit utilized to control the apparatus.
  • a base 11 supporting a plurality of vertical guide rods 12 upon which are slidably mounted sleeves 13 secured to a table 15 which is provided for supporting a patch 16 of carpeting material to be tested.
  • a pair of cams 19 secured to a rod 20 engage the lower surface of the table 15 for supporting and providing a vertical adjustment of the position of the table 15.
  • the rod 26 is mounted on brackets 21 secured to the base 1-1 and has attached thereto a crank 23.
  • the crank 23 is provided with a springassess Patented May '7, 1953 loaded plunger 24 which is adapted to enter one of a plurality of holes 25 in a plate 26 secured to a wall or cabinet 23 attached to the base .11, the holes 25 being arranged in a circle concentric with the rod 26.
  • a knurled handle 29 attached to the plunger 24 is provided for permitting a withdrawal of the plunger 24 from the hole 25 so that the operator can move the crank 23 to rotate the rod 20 and thereby move the cams 19 to change the elevation of the table 15 supporting the patch 16 of carpeting to be tested.
  • a carriage 3t slidably mounted on guide rods 31 attached to the cabinet 28 is provided for supporting that part of the device which applies the flame to the carpeting 16 to be tested.
  • a bracket 34 secured to the carriage 3i pivotally supports a lever 35 having attached to one end thereof a rod 38 which extends across the patch 16 and carries a bifurcated block 39.
  • a set screw 42 threaded through the block 39 is provided for locking the block 39 to the rod 38 in whatever position may be desirable.
  • a nozzle 45 which may be a hypodermic needle of a well-known type, extends through an aperture in the block 39 for directing a flame downward onto the patch 16 of carpeting material.
  • a hose 46 attached to the upper end of the needle 45 is connected to a convenient source 43 of gas, the gas being ignited at the tip of the nozzle or needle 45 to produce a flame for testing the carpet.
  • a set screw 47 threaded into the block 39 and engaging the needle 45 is provided for retaining the needle 45 in a desired position in the block 39.
  • the opposite end of the lever 35 is pinned to a piston rod 50 of an air cylinder 51 secured to a bracket 52 attached to the carriage 30.
  • the purpose of the air cylinder 51 which is connected to an air source 55 (FIGURE 2) through a hose 56, is to pivot the lever 35 to raise and lower the block 39 to move the flame into and out of contact with the patch 16 of carpeting material.
  • the air cylinder 51 is provided with a return spring (not shown) which raises the rod 5% ⁇ to pivot the lever 35 counterclockwise and thereby lower the flame into contact with the patch 16.
  • a motor mounted on the base 11 drives a threaded shaft 61 which extends through the carriage 30 for moving the carriage and traversing the flame across the patch 16 at a predetermined speed.
  • the motor 6% may be reversed to reverse the direction of rotation of the shaft 61, and consequently, the direction of traverse of the carriage 3t)- and the flame.
  • the circuit shown in FTGURE 2 is provided for controlling the testing apparatus.
  • a switch is manually closed to connect a solenoid valve 71 to a power supply 72 through closed contactors 75 and 76.
  • the energized solenoid valve 71 permits compressed air to flow into the cylinder 51, thereby pivoting the lever 35 clockwise to raise the block 39 carrying the needle or nozzle 45.
  • a valve (not shown) at the gas supply is opened to permit gas to flow through the needle 45. The operator then ignites the gas flowing from the needle while the needle is held in this raised position.
  • a forward-reverse switch contactor 8% is then moved by the operator to engage a contact 81 or a contact 52, either of which will energize the motor 60 for moving the carriage 30 to traverse the flame across the patch 16.
  • Closure of the contactor 8t? with the contact 81 applies power to the motor 60 in such a manner that the carriage 30 is moved in one direction.
  • closure of the contactor 8th with the contact 82 causes the carriage 30 to be driven in the opposite direction.
  • Operation of the contactor 31 also causes the flame to be lowered into contact with the patch 16, simultaneously with the starting of the traversing of the carriage.
  • Closure of the contactor 8%) with the contact 81 energizes a relay 85 which opens the contactor 75 to deenergize the solenoid valve 71, thereby permitting the return spring in the air cylinder 51 to lift the rod 50 and lower the block 35.
  • Closure of the contactor 80 with the contact 82 energizes a relay 86 which opens the contactor 76 to deenergize the solenoid valve 71. In this manner, closure of the switch contactor 8% lowers the flame into contact with the patch 16 and simultaneously begins the traverse of the flame.
  • the motor 60 is a part of a conventional, commercially available driving unit 90 which is provided with a pair of limit switches 1 and 92 (FIGURE 4) which are adapted to stop the motor 60 and raise the flame after the carriage 30 has been traversed ttor a predetermined distance.
  • a lug 5 (FIGURE 4) threadedly attached to the shaft 61 is adapted to engage and open the limit switches 91 and 92, the lug 95 traveling along the rotating shaft 61 until one of the switches 91 or W. is opened to deenergize the motor 69 and the energized relay 85 or 86. This stops the motor 6t and closes the contactor 75 or 76 to again energize the solenoid valve 71.
  • Energization of the solenoid valve 71 applies compressed air to the cylinder 51 to pivot the lever 35 and elevate the flame to a position out of contact with the patch '16.
  • opening of the switch 91 Or 92 by the lug 95 stops the traversing of the flame and simultaneously elevates the flame.
  • a device for testing flammability of a fabric comprising a base, means on the base for supporting a [fabric to be tested, means on the base for applying heat to the fabric at a location thereon, means on the base for moving the heat applying means to traverse said location across the fabric at a predetermined rate, and means for moving the heat applying means away from the fabric after said heat applying means has been traversed a predetermined distance.
  • a device for testing flammability of a fabric comprising a base, means on the base for supporting a fabric to be tested, means movably mounted on the base for applying a flame to the fabric, means on the base for moving the flame applying means to traverse said flame across the fabric, and means on the base for actuating the flame applying means to withdraw the flame from the fabric after said fabric has been traversed a predetermined distance.
  • a device for testing flammability of carpeting material comprising a base, a table mounted on the base for supporting a patch of carpeting material to be tested, a carriage movably mounted on the base, means on the carriage for applying a flame to the patch, saidmeans being movably mounted on the carriage in such a manner that the flame is movable into and out of contact with said patch, means on the base for moving the carriage to traverse the flame across the patch, and means on the carriage for raising and lowering the flame applying means.
  • a device for testing flammability of carpeting material comprising a base, a table mounted on the base for supporting a patch of carpeting material, a carriage movably mounted on the base, means on the carriage for applying a flame to the patch, said flame applying means being movable vertically on the carriage to elevate the flame away from the patch, means on the carriage for raising and lowerin the flame applying means, means on the base for moving the carriage to traverse the flame across the patch, and control means for simultaneously actuating said raising and lowering means and said carriage moving means.
  • a device for testing flammability of a fabric comprising a base, a table mounted on the base for movement in a vertical direction, a rod rotatably supported between the base and the table, a pair of cams secured to the rod for engaging and supporting the table, a handle secured to the rod for rotating the cams to raise and lower the table, a plate supported by the :base and having a plurality of apertures arranged in a circle concentric with the rod, a spring-loaded plunger mounted on the handle for entering one of the apertures in the plate for holding the rod and the cams in an adjusted position, a pair of guide rods mounted on the base, a carriage slidably mounted on the guide rods, a lever pivotally mounted on the carriage, a rod secured to one end of the lever, a block adjustably attached to the rod, a nozzle carried by the block for directing a stream of gas onto the patch of fabric supported on the table, a fluid cylinder mounted on the carriage and connected to the other end of the lever for pivoting said lever
  • a device for testing flammability of a material comprising a base, means on the base for supporting a material to be tested, means on the base for applying heat to the material at a predetermined point thereon, means on the base for moving the heat applying means to move said point across said material at a predetermined speed, and means for Withdrawing the heat applying means ctrom the material after said heat applying means has been moved a predetermined distance along said material.
  • An apparatus for testing the heat resistant characteristics of a material comprising a base, means on the base for supporting said material in a predetermined plane, guide means on the base parallel to said plane, a carriage movably mounted on the guide means, heat applying means mounted on the carriage and movable from an inoperative position away from the material to an operative position in close proximity to the material, actuating means on the carriage for moving the heat applying means from one of said positions to the other, means on the base for moving the carriage to move the heat applying means along the material, and control means for signalling the actuating means and the carriage moving means for simultaneously moving the heat applying means into operative position and commencing said movement of said carriage and for then signalling the actuating means to move the heat applying means to said inoperative position after the carriage has been moved a predetermined distance.
  • An apparatus for testing the resistance of a material to a flame comprising a base; meanson the base for supporting the material to be tested; flame carrying means movably mounted on the base for travel along a path past .the material to be tested; said flame carrying means 850 being movable laterally out of said path away from the material; and control means connected to the flame carrying means for moving said flame carrying means laterally into said path, moving said flame carrying means along 5 6 the path for a predetermined distance and then moving moving the carriage for a predetermined distance and said flame carrying means laterally out of said path. then moving said heat applying means into said inopera- 9.
  • An apparatus for applying heat to an article comprising a base; meanson the base for supporting the material to be tested; flame carrying means movably mounted on the base for travel along a path past .the material to be tested; said flame carrying means 850 being movable laterally out of said path away from the material; and control means connected to the flame carrying means for moving said flame carrying means laterally into said path, moving said flame carrying means along 5 6

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Treatment Of Fiber Materials (AREA)
US11601A 1960-02-29 1960-02-29 Flammability testing apparatus Expired - Lifetime US3088309A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL125639D NL125639C (enrdf_load_html_response) 1960-02-29
NL261323D NL261323A (enrdf_load_html_response) 1960-02-29
US11601A US3088309A (en) 1960-02-29 1960-02-29 Flammability testing apparatus
GB5314/61A GB918716A (en) 1960-02-29 1961-02-13 Flammability testing apparatus
DK66461AA DK104265C (da) 1960-02-29 1961-02-17 Apparat til undersøgelse af et materials brændbarhed.
FR853558A FR1283428A (fr) 1960-02-29 1961-02-22 Appareil pour essais de combustibilité
DEC23464A DE1132361B (de) 1960-02-29 1961-02-22 Geraet zur Pruefung der Brennbarkeit von Materialien
CH227461A CH376294A (fr) 1960-02-29 1961-02-24 Appareil d'essai de la combustibilité d'un échantillon d'un matériau
BE600746A BE600746A (fr) 1960-02-29 1961-02-28 Appareil pour essais de combustibilité

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11601A US3088309A (en) 1960-02-29 1960-02-29 Flammability testing apparatus

Publications (1)

Publication Number Publication Date
US3088309A true US3088309A (en) 1963-05-07

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ID=21751139

Family Applications (1)

Application Number Title Priority Date Filing Date
US11601A Expired - Lifetime US3088309A (en) 1960-02-29 1960-02-29 Flammability testing apparatus

Country Status (7)

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US (1) US3088309A (enrdf_load_html_response)
BE (1) BE600746A (enrdf_load_html_response)
CH (1) CH376294A (enrdf_load_html_response)
DE (1) DE1132361B (enrdf_load_html_response)
DK (1) DK104265C (enrdf_load_html_response)
GB (1) GB918716A (enrdf_load_html_response)
NL (2) NL125639C (enrdf_load_html_response)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220242A (en) * 1962-01-08 1965-11-30 Jr Kenneth R Oliver Method and apparatus for determination of hole burning susceptibility of materials
US3545252A (en) * 1969-07-30 1970-12-08 Nasa Flammability test chamber
US3667277A (en) * 1971-01-13 1972-06-06 Textile Research Inst Apparatus for measurement of textile flammability properties
US3685343A (en) * 1970-04-28 1972-08-22 William H Cochran Apparatus for determining flammability
ES2394628A1 (es) * 2010-07-22 2013-02-04 Sagres S.L. Sistema de evaluación térmica de prendas ignífugas.
ES2757273A1 (es) * 2018-10-25 2020-04-28 Univ Cantabria Dispositivo y método de ensayo de resistencia al fuego de muestras de elementos constructivos delimitadores

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007032665B4 (de) 2007-07-13 2017-07-06 Underwriters Laboratories Inc. Verfahren und Vorrichtung zur Durchführung einer Brennprüfung an einem Prüfling

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566338A (en) * 1946-04-08 1951-09-04 Harry B Kime Apparatus for testing fire-resistant material
US2838427A (en) * 1956-10-23 1958-06-10 Int Resistance Co Method and apparatus for flame spiralling
US2895327A (en) * 1957-02-20 1959-07-21 Constantin J Monego Apparatus for measuring resistance of fabrics to thermal decomposition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566338A (en) * 1946-04-08 1951-09-04 Harry B Kime Apparatus for testing fire-resistant material
US2838427A (en) * 1956-10-23 1958-06-10 Int Resistance Co Method and apparatus for flame spiralling
US2895327A (en) * 1957-02-20 1959-07-21 Constantin J Monego Apparatus for measuring resistance of fabrics to thermal decomposition

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220242A (en) * 1962-01-08 1965-11-30 Jr Kenneth R Oliver Method and apparatus for determination of hole burning susceptibility of materials
US3545252A (en) * 1969-07-30 1970-12-08 Nasa Flammability test chamber
US3685343A (en) * 1970-04-28 1972-08-22 William H Cochran Apparatus for determining flammability
US3667277A (en) * 1971-01-13 1972-06-06 Textile Research Inst Apparatus for measurement of textile flammability properties
ES2394628A1 (es) * 2010-07-22 2013-02-04 Sagres S.L. Sistema de evaluación térmica de prendas ignífugas.
ES2757273A1 (es) * 2018-10-25 2020-04-28 Univ Cantabria Dispositivo y método de ensayo de resistencia al fuego de muestras de elementos constructivos delimitadores

Also Published As

Publication number Publication date
NL261323A (enrdf_load_html_response)
CH376294A (fr) 1964-03-31
GB918716A (en) 1963-02-20
DK104265C (da) 1966-04-25
DE1132361B (de) 1962-06-28
BE600746A (fr) 1961-08-28
NL125639C (enrdf_load_html_response)

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