US1569391A

US1569391A - Safety device for flying machines

Info

Publication number: US1569391A
Application number: US60657A
Authority: US
Inventors: Pearl Rubin; Sussna Joseph
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-10-05
Filing date: 1925-10-05
Publication date: 1926-01-12
Anticipated expiration: 1943-01-12

Description

Jan. 12 1926.

R. PEARL ET AL SAFETY DEVICE FOR FLYING MACHINES Filed Oct. 5, 1925 {S Sheets-Sheet 1 %0 =14QL WW Jan. 12 1926.

R. PEARL AL SAFETY DEVICE FOR FLYING MACHINES Filed Oct. 5, 1925 3 Sheets-Sheet 2 Jan. 12 1926.

R. PEARL ET AL SAFETY DEVICE FOR FLYING MACHINES s Sheets-Sheet; 5

Filed Oct. 5, 1925 Patented Jan. 12, 1926 UNITED STATES PATENT. OFFICE.

RUBIN PEARL AND JOSEPH SUSSNA, OF PHILADELPHIA, PENNSYLVANIA.

SAFETY-DEVICE FOR FLYING MACHINES.

Application filed October To all whom. it may concern:

Be it known that we, RUBIN PEARL and -JOSEPH SUSSNA, citizens of the United lowing is a specification.

Thepurpose of our invention is to provide means whereby a disabled flying machine can be prevented from falling too rapidly.

Our invention comprehends a novel construction and arrangement of a gas bag, a parachute, and means of inflating said gas bag at the proper time, as in an emergency.

It also comprehends an automatic controller to operate our machine at the proper time should the pilot be injured, or for any other reason fail to operate the manual control provided.

Other novel features of construction and advantage will hereinafter appear in the detailed description and the appended claims.

For the purpose of illustrating our invention we have shown in the accompanying drawings a typical embodiment thereof,

which we at present prefer, since this embodiment will be found in practice to give satisfactory and reliable results. It is, however, to be understood that the various inst-rumentalities of which our invention consists canbe variously arranged and organized, and that our invention is not limited 1 to the precise arrangement and organization of these instrumentalities as herein shown and described.

Figure 1 represents a perspective view of an aeroplane provided with our'invention, shown as in use.

Figure 2flrepresents a perspective view of an aeroplane provided with two units of our invention, shown as when not in use..

Figure 3 represents our invention as fit- .ted to a biplane. In this drawing we have shown some parts in section, some parts L broken away, and someparts removed,that

- moved.

we may more clearly illustrate certain features of the construction.

Figure 4 represents a section on the line 4-4, Figure 3, and illustrates the mechanism as in use. The gas bag has been re- Figure 5.1;epresents a section on the line 4-4, Figure 3, and illustrates the mecha- 5, 1925. Serial No. 60,657.

,,.nis1n as when not in use. The gas bag has been removed.

trol in its inoperative position.

Figure 7 represents the automatic control in operation.

Similar numerals of reference indicate corresponding parts.

Referring to the drawings.

1 designates our novel construction and machines.

2 designates a gas bag having fastened thereto a parachute 3. Gas containers 4 and 5 are connected to the said gas bag 2 by pipe lines 6 and 7 and the valve chest 8.

The valve chest 8 is preferably'formed integral with the base 9, which latter is fastened to any desired part of the flying machine in any desired manner,

We provide ropes 10 for the purpose of reducing the strain on the gas bag 2 and the parachute 3. Said ropes 10 are fastened to the flanged portion 12 of the valve chest 8. The valve chest 8, see Figs. 4 and 5, is divided into an upper and a lower portion by the valve 13. The lower portion of the said valve chest 8 is connected to the gas containers 4 and ,5 by pipe lines 6 and 7, and to discharge end of pump 14 by pipe line 15,

see Fig. 3. The upper portion of said valve chest 8 has connected thereto the neck 11 of the said gas bag 2, and has formed therein a number of small apertures 16, see Figs. 4 and 5. These apertures restrain the gas from rushing into the gas baglvtoo violently,

sition, as shown at 1, Figure 2, the gas bag Figure. 6 represents the automatic con-- arrangement of a safety device forflying is deflated and folded into the space 18,

formed by the gas containers 4 and 5, the base 9, and the two covers-19 and20, which latter-are pivotally fastened to the said base 9, see Figs. 4 and 5.

The parachute 3 and the ropes 10 are also contained in the said space 18, and therefore the machine is compact and of the appropriate shape to offer the minimum resistance to the normal operation of. the flying machine, see Fig. 2.

The said valve 13, see Figs. 4 and 5, is normally closed by a spring 21, and is provided with. a valve stem 22, which latter passes througha stufling box in the lower portion of the valve chest 8 and is provided with the collar 23 and an apertured portion 24 at its lower end.

The said covers, 19 and 20, are provided with projecting arms, 25 and 26, which latter have pivoted thereto toggle links, 27 and 28. The said toggle links are pivoted to each other and can be caused to assume the position illustrated in Figure 4. by a downward motion of the collar 23. which latter is fast on the valve stem Resilient strips, 29 and 30, see Figs. 4 and 5, are fastened to the said covers, 19 and 20, and protect the gas bag from injury during inflation.

A rope 31, see Figs. 3 and 6, is fastened to the lower portion of the said valvestem 22 and to an apertured portion of the hand controlled lever 32. Another rope 33, see Figs. 3, 6 and 7, connects the automatic con troller with the said valve stem 22. i

The automatic controller is fastened in an upright position to the fuselage, or any other suitable portion of the flying machine, and consists of a tank 34, see Figs. 3, 6 and 7, containing a spring 35, which latter presses a float 36 into a fluid 37. A cover 38 guides the float rod 39 and supports pivotally the hand lever 40, which latter has a lockin portion 41 that can be thrust into an apertured portion 42 of the float rod 39 and thus restrain the automatic controller from operating should the pilot so desire, see Fig. 6.

The tank 34, see Fig. 6, has formed integral therewith lugs 43, which have pivotally fastened thereto the aforementioned hand control lever 32.

The operationis as follows During the normal operation of the flying machine our device is as illustrated in Figures 2, 5 and 7. The gas bag 2, the parachute 3, and the ropes 10 are folded into the space 18. The valve 13 is closed, and the toggle links, 27 and 28, are in the position illustrated in Figure 5.

A suflicient quantity of a suitable gas, such as helium, to fill the gas bag 2, is compressed into the containeis 4 and 5.

When the operator so requires, as in an emergency, he can cause our machine to 0p erate by pulling lever 32 downward, pulling on rope 31 and valve stem 22. thus opening valve 13 and permitting gas to inflate the gasbag 2. The covers have been opened by the collar 23, pressing the toggle links 27 and 28 downward to the position illustrated in Figure 4. The machine will now appear as illustrated in Figure 1.

The resistance offered to the air by the parachute 3, and the natural buoyancy of the gas bag 2 will right the aeroplane and prevent too rapid a descent.

We provide the automatic control, illustrated in Figs. 3, 6 and 7, to provide for the possibility of the pilot being injured or otherwise neglecting to use our device when required. Its operation is as follows In the normal operation of the aeroplane it is approximately level and therefore the tank 34 is upright, see Fig. 6. The fluid 37 buoys up float 36 and compresses spring 35. Should the machine nose dive, back slip, or side slip the tank will assume the position as shown in Fig. 7. The fluid 37 will assume its new level and the spring will now force the unsupported float member 36 to its new position. The control rod 39 has one end fastened to the float 36 and the other end fastened to rope 33, thus action of our automatic controller is communicated to the valve stem 22, see Figs. 3, 4 and 5, and causes operation of our safety device.

We provide the lever 40 to enable the pilot to lock the automatic control in its inoperative position when required, as in stunt flying, see Fig. 6.

The pilot can cause said gas bag 2 to be deflated by causing pump 14 to operate and exhaust the gas from the upper portion of the valve chest 8 and discharge it into the lower portion of said valve chest 8, and therefore into the containers 4 and 5 by Way of the ipe lines 6 and 7.

aving described our safety device we claim as new 1. In a safety device for flying machines, a gas bag, a supply of gas and means to connect the said gas bag with the said supply of gas automatically, when the flying machine departs from its normal flying position.

2. In a safety device for flying machines a gas bag, a supply of gas and automatic means to connect said gas bag with said supply of gas, said automatic means including a tank, a float, a spring, and a quantity of fluid.

3. A safety device for flying machines including a parachute, means to cause said parachute to assume its operative position and automatic control of said means, said automatic control including a spring pressed float and a quantity of fluid.

4. In a safety device for flying machines a gas bag with an attached parachute, gas containers, a valve connecting the said gas containers and the said gas bag,-automatic control for said valve when the flying machine departs from its normal flying position and means whereby the operator can control said valve.

5. In a safety device for flying machines, a gas bag, gas containers, automatic means to cause inflation of the said gas bag when the flyingmachine departs from its normal flyoperating.

ing position and means whereby the operator-can restrain said automatic means from 6. A safety device for flying machines comprismg 1n comb1nat1on a gas a g, a parachute, gas containers, a base andcovers plV- otally fastened to said base and forming with the gas containers and the said base a container for the said gas bag and its adjuncts. a

7. A safety device for flying machines comprising the following instrumentalities:A gas bag, a parachute, gas containers, a base with covers attached thereto, a

toggle mechanism in said base operating saidcovers, a valve, and means whereby said valve and-said covers can be opened simultaneously.

8. In a safety device for flying machines, a gas' bag,a parachute, gas containers, covers, a valve chest having small holes theree machlne departs from its normal flying and covers arranged so'that the covers can be closed and with the said containers and base, contain the said gas bag and its adjuncts. v

10. In a safety device for flying machines a gasbag, a supply of gas, means whereby the said gas bag can be connected to the said 7 supply of gas automatically when the flying O- sition and a pump for deflating the sai gas bag and returning the gas to said supply thereof.

11. A safety device for flying machines including a parachute, means whereby the parachute can be caused to assume its operative position, automatic controlfor said means, said automatic control lIlCllldlIlg a float and a quantity of .fluid nd" means whereby theoperator can restrain the said automatic control from operating.

12. A safety device for flying machines inbe inflated, automatic control of said means,

"said automatic control including a float and a uantity of fluid, and means to cause defla= tion of the said gas ba i v T R BIN PEARL.

J OSEPII SUSSNA.

cluding a gas bag, a parachute attached 'thereto,rneans whereby the said gas bag can