US2449813A - Safety lowering device for use as a fire escape - Google Patents

Safety lowering device for use as a fire escape Download PDF

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Publication number
US2449813A
US2449813A US734129A US73412947A US2449813A US 2449813 A US2449813 A US 2449813A US 734129 A US734129 A US 734129A US 73412947 A US73412947 A US 73412947A US 2449813 A US2449813 A US 2449813A
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valve
levers
fire escape
bag
lowering device
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Expired - Lifetime
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US734129A
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Lawson Anna
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Individual
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B5/00—Other devices for rescuing from fire

Definitions

  • This invention relates to a device for escaping from high buildings in case of fire.
  • FIG. 1 is an elevational view of the device after the bag has been inflated and showing the device attached to the person and as the person would appear dangling from the balloon and suspended in air,
  • Fig. 2 is an enlarged view of the device which is in a locked condition and before the same has been placed on the back of the prospective user and before the bag has been inflated,
  • Fig. 3 is a view similar to Fig. 2 showing the valve levers in their released condition and. the locked parts separated from the retaining part of the lock.
  • l represents a tank filled with helium or other light gas under pressure.
  • a valve fitting l l adapted to be operated by valve levers l2 and I3.
  • valve levers l2 and I3 When these valve levers are extended upwardly in the position shown in Fig. 2 the valve II is closed.
  • a trip cord l'l extends through a bracket 18 on one end of tank H) and has a ring I! thereon through which the finger can be extended to pull the cord.
  • the cord is attached to a trigger 2
  • levers I2 are forced down and helium will be delivered through a tube 22 to the bag It to inflate the same.
  • the upper ends of the levers l2 and I3 are provided with a ring formation 23 to which fireproof nylon cords or shroud lines '24 are attached.
  • the cord I1 is pulled after the person's arms have been extended through arm straps 25 and belt 26 has been adjusted about the waist of the person. The person will sit on the window ledge and pull the cord and after the bag I6 has been inflated he may jump from the window. on doing so the weight will cause the valve levers 12 to be drawn upwardly whereby to close the valve II and stop the flow of helium gas to the bag.
  • Adjustable straps 21 are connected between the arm straps 25 and the belt 26. These straps having hook 28 adapted to be connected to a ring 29 in the arm strap.
  • the straps are adjustable in length through a buckle 3
  • Thelower ends of the straps have loops 33 by which they can be attached to a transverse member 34 for connecting them together whereby to form the belt portion 26.
  • a device of the character described comprising a tank filled with light gas under pressure, a. valve fitting on the top of the tank, two operating levers pivoted to the valve fitting to open and close the same, a bag connected by a tube with the valve fitting and adapted to be filled with the light gas as the same is delivered through the tube to the bag, lock means for connecting the valve levers together to maintain the valve closed, trip means for releasing the lock means and the levers whereby the levers may assume a, position to open the valves, shroud lines connected between the valve levers and the bag whereby the valve levers will be pulled upwardly to their closed positions when the bag has been inflated and weight is transmitted to the bag, and a harness for attaching the tank to the body of the person who is to effect an escape.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)

Description

A. LAWSON Sept. 21, 1948.
SAFETY LOWERING DEVICE FOR USE AS A FIRE ESCAPE Filed March 12, 1947 2 Sheets-Sheet 1- IN VENTOR.
ANNA LAWSON ATLI'I'JRN EYS Sept, 21, 1948.. A. LAWSON 1 2,449,813
SAFETY LOWERING DEVICE FOR USE AS A FIRE ESCAPE Filed March 12, 1947 2 Sheets-Sheet 2 I N VEN TOR. I
ANNA LAWSON Patented Sept. 21, 1948 SAFETY LOWERING DEVICE FOR USE AS A FIRE ESCAPE.
Anna Lawson, Detroit, Mich.
Application March 12, 1947, Serial No. 734,129
1 Claim. 1
This invention relates to a device for escaping from high buildings in case of fire.
It is an object of the present invention to provide a device which can be attached to the person and which will release an inflated balloon when a trip device is actuated to open the valve of a helium tank whereby a person can jump from a window with safety.
Other objects of the present invention are to provide a fire escape device which can be attached to the person, of simple construction, inexpensive to manufacture and efiicient in operation.
For other objects and for a better understanding of the invention, reference may be had to the following detailed description taken in connection with the accompanying drawing, in which Fig. 1 is an elevational view of the device after the bag has been inflated and showing the device attached to the person and as the person would appear dangling from the balloon and suspended in air,
Fig. 2 is an enlarged view of the device which is in a locked condition and before the same has been placed on the back of the prospective user and before the bag has been inflated,
Fig. 3 is a view similar to Fig. 2 showing the valve levers in their released condition and. the locked parts separated from the retaining part of the lock.
Referring now to the figures, l represents a tank filled with helium or other light gas under pressure. On the top of the tank is a valve fitting l l adapted to be operated by valve levers l2 and I3. When these valve levers are extended upwardly in the position shown in Fig. 2 the valve II is closed. These levers are retained in their raised position by locked parts l4 engaging with a fixed member I 5 on a bag It. A trip cord l'l extends through a bracket 18 on one end of tank H) and has a ring I!) thereon through which the finger can be extended to pull the cord. The cord is attached to a trigger 2| and as the cord is pulled this trigger is released from lock l5. Thereafter the levers I2 are forced down and helium will be delivered through a tube 22 to the bag It to inflate the same. The upper ends of the levers l2 and I3 are provided with a ring formation 23 to which fireproof nylon cords or shroud lines '24 are attached. The cord I1 is pulled after the person's arms have been extended through arm straps 25 and belt 26 has been adjusted about the waist of the person. The person will sit on the window ledge and pull the cord and after the bag I6 has been inflated he may jump from the window. on doing so the weight will cause the valve levers 12 to be drawn upwardly whereby to close the valve II and stop the flow of helium gas to the bag.
Thus the device could again be put into use without a refill of the helium in tank 10.
Adjustable straps 21 are connected between the arm straps 25 and the belt 26. These straps having hook 28 adapted to be connected to a ring 29 in the arm strap. The straps are adjustable in length through a buckle 3|. Thelower ends of the straps have loops 33 by which they can be attached to a transverse member 34 for connecting them together whereby to form the belt portion 26.
While various changes may be made in the detail construction it shall be understood thatsuch changes shall be in the spirit and scope of the present invention as defined by the appended claim.
I claim:
A device of the character described comprising a tank filled with light gas under pressure, a. valve fitting on the top of the tank, two operating levers pivoted to the valve fitting to open and close the same, a bag connected by a tube with the valve fitting and adapted to be filled with the light gas as the same is delivered through the tube to the bag, lock means for connecting the valve levers together to maintain the valve closed, trip means for releasing the lock means and the levers whereby the levers may assume a, position to open the valves, shroud lines connected between the valve levers and the bag whereby the valve levers will be pulled upwardly to their closed positions when the bag has been inflated and weight is transmitted to the bag, and a harness for attaching the tank to the body of the person who is to effect an escape.
ANNA LAWSON.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,322,806 Marshall Nov. 25, 1919 1,572,889 Degen Feb. 16, 1936
US734129A 1947-03-12 1947-03-12 Safety lowering device for use as a fire escape Expired - Lifetime US2449813A (en)

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US734129A US2449813A (en) 1947-03-12 1947-03-12 Safety lowering device for use as a fire escape

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612328A (en) * 1950-07-13 1952-09-30 Gen Mills Inc Variable volume balloon and method of its manufacture
US4520899A (en) * 1983-04-22 1985-06-04 Tulio Vasquez Parachute apparatus with shock absorber
US5058831A (en) * 1989-05-19 1991-10-22 Shigeki Takahashi Emergency escape unit
DE19621210A1 (en) * 1996-05-25 1997-11-27 Andreas Bengt Schirmer Pleasure, sport, therapy or rescue device
FR2748941A1 (en) * 1996-05-24 1997-11-28 Guenier Albert Universal body protection system for high altitude parachute
WO2001066192A1 (en) * 2000-03-09 2001-09-13 Lodewijk Vanluffelen Device and method for evacuating persons, for example from a multi-storey building on fire
US6325329B1 (en) * 1999-06-11 2001-12-04 Joseph Steven Meadows Helium balloon
EP1438229A1 (en) * 2001-10-05 2004-07-21 Jea-Sun Go A life saving air-jacket

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1322806A (en) * 1919-11-25 William marshall
US1572889A (en) * 1924-05-20 1926-02-16 Degen Irwin Charles Safety parachute for aeronauts

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1322806A (en) * 1919-11-25 William marshall
US1572889A (en) * 1924-05-20 1926-02-16 Degen Irwin Charles Safety parachute for aeronauts

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612328A (en) * 1950-07-13 1952-09-30 Gen Mills Inc Variable volume balloon and method of its manufacture
US4520899A (en) * 1983-04-22 1985-06-04 Tulio Vasquez Parachute apparatus with shock absorber
US5058831A (en) * 1989-05-19 1991-10-22 Shigeki Takahashi Emergency escape unit
FR2748941A1 (en) * 1996-05-24 1997-11-28 Guenier Albert Universal body protection system for high altitude parachute
DE19621210A1 (en) * 1996-05-25 1997-11-27 Andreas Bengt Schirmer Pleasure, sport, therapy or rescue device
US6325329B1 (en) * 1999-06-11 2001-12-04 Joseph Steven Meadows Helium balloon
WO2001066192A1 (en) * 2000-03-09 2001-09-13 Lodewijk Vanluffelen Device and method for evacuating persons, for example from a multi-storey building on fire
US7156203B2 (en) 2000-03-09 2007-01-02 Lodewijk Vanluffelen Device and method for evacuating persons, for example from a multi-storey building on fire
EP1438229A1 (en) * 2001-10-05 2004-07-21 Jea-Sun Go A life saving air-jacket
EP1438229A4 (en) * 2001-10-05 2004-12-29 Jea-Sun Go A life saving air-jacket

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