US1043946A - Automatic igniting and extinguishing device for gas-burners. - Google Patents

Description

I 0. s. LIED. AUTOMATIC IGNITING AND EXTINGUISHING DEVICE FOR GAS BURNERS. I APPLICATION FILED SEPT. 9, 1911.

1,043,946, 1 1 I Patented N011.12,1912.

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EQHSAYQMSQM 'Atterney COLUMBIA PLANOGRAPH CO..\VASH|NGTON, D. c.

STATES PA one slat/ERIN LIED, or CI-IRISTIANIA, NORWAY.

masses.

Specification of Letters Patent.

Patented Nov. 12, 1912.

Application filed September 9, 1911. Serial No. 648,521.

To all whom it may concern:

Be it known that I, OLE Snvnnrn LIED, a citizen of Norway, residing at Ghristiania, Norway, have invented a new and useful Improvement in Automatic Igniting and Extinguishing Devices for GasBurners; and I do hereby declare the following to be a full, clear, and exact description ofthe same. a

I Devices for automatically igniting and eX- tinguishing gas-burners as hitherto known are usually objectionablein some respect especially as regards the adjustment of the apparatusaccording to the different conditions of pressure. The adjustment is one of the most difficult points in' automatic gasiguiting and it is unpractical and not exact enough in hitherto known systems. Springloading of the movable member (diaphragm, floating bell, piston) used in such devices is not satisfactory, because the resistance increases with the degree of flection and, besides, the original resistance decreases after some use. Loose weights are, there fore, used for loading the movable member subjected to the gas pressure. As, however, the gas pressure depends upon the height of the locality and upon the quantity of gas consumed, and also always varies at diiferent gas works, it is obvious that great difiiculties may arise and trouble be caused, when the load is to be adjusted correctly by means of a greater or less number of such loose weights or plates.

My invention has for object to provide a device, in which the above mentioned objections are obviated.

The invention is illustrated in the accompanying drawing, which represents a side elevation, partly in section, of the device.

The device is provided in a known manner with a member such as a diaphragm, floating bell or piston which receives the gas pressure. In the drawing a floating bell 1--, is shown, which by means of a pipe 2 and branch pipes --3 is connected with a gas supply pipe. The pipe -2- is further connected with a valve chamber 4@, in which a valve -5 opens or closes the opening leading to the gasburner, to be mounted upon the chamber l. The movable member 1 subjected to the gas pressure is in operative connection with two oscillating levers 6, and 7, the lever 6- being also connected with the valve operating mechanism (pawl -8, usual ratchet and cam wheel -9, lever 10 and valve operating bar -1l), while the other lever 7 serves for adjusting or balancing the member 1- in thefollowing manner :The gas pressure tends to lift the bell l-, which is so light that a very low gas pressure is sufficient to elevate it. The lever -6, which is hinged at 12, lies above the bell 1 and rests upon two rollers -18 at its middle portion. Above the lever 6 is the lever 7 which is hinged at 14: and which by an adjust-able pressing piece l5 acts on the subjacent lever -6- acting again on the rollers -13 of the bell -1. The lever 7-- besides, has an adjustable weight 16. The pressure on the bell -1 from the loading mechanism thus depends upon the position of the piece 15- between the two levers 6 and -7. The farther the pressing piece -15- isremoved from the fulcrum 14 the less is the pres sure upon the rollers 13, 2'. e. the less is the bell 1- loaded, and vice versa, when the pressing piece 15 is moved toward the point 1t-. The lever 6 or the lever 7 may be graduated so as to indicate the degree of the load upon the bell 1 at any adjustment of the piece 15.

In addition to forming a. member of the loading mechanism, the lever 6 serves to cause the opening or closing of the burnervalve 5 and eventually also of the pilotlight-valve 17-. For this purpose the lever 6- through a pawl 8 and an ordinary ratchet and cam wheel 9- operates a roller -.22 carried by the lever 10. The latter is secured gas-tight in a flexible material -18 (leather for example) forming one wall of the chamber l ,and enabling the lever e-10 to move as required upon the pivot- 23 without the use of side-surfaces, stufiing boxes or the like.

The stem llof the main valve 5 is guided by a cross piece 19-- and is so connected through a double lever -20- with the stem 21 of the pilot-light-valve 17-, that the latter in the usual manner is closed, when the valve 5 is opened, and vice versa.

When now the bell 1- is liftedon account of the gas pressure being temporarily increasedthe two levers 6 and 7 are so lifted and turn upon their ful' crums 12 and -1& respectively.

When the lever -6 lifts the loaded lever --7, its pawl -8 rotates the wheel 9 one step forward. This wheel is in a known manner provided with cams, teeth 1 or pins, which during the stepwise rotation cause the alternate lifting and lowering of the outer end of the lever -10-- and consequently also of the valves 5 and -17.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a device for automatically igniting and extinguishing gas burners, the combination of a gas-burner-valve, a lifting member actuated by varying gas pressure, a pivoted loading lever loading the said member, a second pivoted lever having a longitudinally adjustable block transmitting the pressure of the said second lever to the loading lever, and an actuating device operated by the movement of said loading lever and effecting the movement of the gasburner-valve on actuating the lifting memher.

2. In a device for automatically igniting and extinguishing gas-burners, the combination of a gas-burner-valve, a lifting member actuated by variation in gas pressure, a pivoted loading lever loading the said memher, a second pivoted lever transmitting its pressure to the loading lever and having an adjustable weight for varying this pressure and an actuating device operated by the movement of said loading lever and effecting the movement of the gas-burnervalve on actuating the lifting member.

3. In a device for automatically igniting and extinguishing gas-burners, the combination of a gas-burner-valve, a lifting member actuated by variation in gas pressure, a pivoted loading lever loading the said member, a second pivoted lever having a longitudinally adjustable block transmitting the pressure of the said second lever to the leading lever, a pressure varying weight adjustably carried by the second lever and an actuating device operated by the move ment of said loading lever and effecting the movementof the gas-burner-valve on actuating the lifting member.

t. In a device for automatically igniting and extinguishing gas-burners, the combination of a gas-burner-valve, a gas chamber for the same having a flexible side wall, a valve actuating lever gas tightly attached in the said flexible wall so as to project with one end into the gas chamber and with its other end outside same, and a wheel actuating the said outside lever end to move the lever and valve.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

OLE SEVERIN LIED.

Vitnesses MARLIN GUBeononUsEN, IIENRY BORDEWICH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents: Washington, D. G.

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