US427264A

US427264A - And magdalena

Info

Publication number: US427264A
Authority: US
Publication date: 1890-05-06
Anticipated expiration: 1907-05-06

Description

(No Model.)

B IWANOWITSOH.

I SAFETY VALVE. No. 427,264. Patented May 6; 1890.

WITNEEBEEII.

UNITED STATES PATENT OFF-ICE. Y

RICHARD IWANOWITSCH, OF PENZING, NEAR VIENNA, ASSIGNOR OF TWO- THIRDS TO CARL PEKLINGER, OF FLORIDSDORF, AND MAGDALENA- KARDER, OF VIENNA, AUSTRIA-HUNGARY.

SAFETY-VALVE.

SPECIFICATION forming part of Letters Patent No. 427,264, dated May 6, 1890.

Application filed October 30, 1889. Serial No. 328,668. (No model.)

To all whom it may concern: valve to be overloaded, as the shorter arm '0" Be it known thatI, RICHARD IWANOWITSCH, reaches into the longitudinal slot 70 of the of Penzing, near the city of Vienna, Austriavalve-stem and comes in contact with the up- Hungary, have invented certain new and useper edge of the said slot. Before the arm 5 ful Improvements in Safety-Valves, of which can come in contact with the lower edge of the following is a specification. the slot 10, when the lever is raised, the said This invention relates to an improved safe arm comes in contact .with the lower edge lof 5 5 ty-valve for steam-boilers, according to which the slot f in the valve-casing, or is prevented the steam, which would issue from the valve from coming in contact with the lower edge l0 when the maximum pressure is exceeded, is of the slot kin any other appropriate manner. not, as customary, allowed to escape into the In order to prevent the safety-valve from open air, but is led through a branch pipe being tampered with, acap mis applied to the arranged at a suitable part of the valve into upper part of the casing, and is attached the combustion-chamber above the fire in such thereto by means of a wire or its equivalent 1 5 manner that the fire will be damped aocordand a seal, such as n.

ing to the quantity of steam escaping through The above described safety valve with the safety-valve, thereby obviating the danspring 61 can be employed for stationary boil- 65 ger arising from increase of steam-pressure ers; but a direct weighting of the valve acan and reducing the said pressure to its normal be employed, if desired, in which case, how- 20 point. ever, it is better to inclose-the lever and the In the accompanying drawing, my imweights in a casing of wire-work, which can proved safety-valve is represented in vertical also be protected from being tampered with Sectionby being sealed in any suitable manner.

The valve-cone a is weighted by the screw Having now particularly described and as- 2 5 b, a helical spring d, or other weight, accordcertained the nature of my said invention and ing to the highest permissible steam-pressure. in what manner the same is to be performed,

In order to protect the spring (1, the same is I declare that what I claim is provided with a movable packing, piston- In safety-valves of the kind hereinbefore ring, hemp ring, or the like, a Ramsbottom set forth, a valve-casing f, having a valve- 0 piston e being represented by the accorncone alocated therein and connected to the panying drawing, and, as is evident, the nut piston-rod 6, said cone a being weighted in c of the regulating-valve adjusts the tension accordance with the highest permissible pressof the helical spring d and is prevented from ure in the boiler by means of a spiral spring making any retrograde movement by means d, means, such as the cap m, for retaining 35 of a lock-nut c. the spring under pressure, and a screw, such The valve-casing f is provided with abranch as b, a regulating device comprising the nut pipe g, arranged between the valve-cone a and c, lock-nut c, and a two-armed lever i i, piv- 8 5 the piston (2, said branch pipe being connected oted in lateral lugs It, all in combination with to a tube g, which is continued into the coma branch pipe such as g, and arranged to op- 0 bustion-chamber and leads the steam from erate substantially as and for the purpose set excessive generation issuing through the safeforth in the foregoing specification, and shown ty-valve to the fire, whereby the latter is more in the accompanying drawing. or less damped, according to the quantity of In witness whereof I hereunto set my hand steam passing the safety-valve, and in this in presence of two witnesses.

45 manner the pressure in the boiler is reduced to RICHARD IWANOWITSCH.

its normal point. A lever i, which has its ful- Witnesses: crum in lateral lugs h, permits the safety- RUDOLF VON PLANK, valve to be lifted, but does not allow the said NETTIE S. HARRIS.