US108704A - Improvement in balance slide-valves - Google Patents

Improvement in balance slide-valves Download PDF

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US108704A
US108704A US108704DA US108704A US 108704 A US108704 A US 108704A US 108704D A US108704D A US 108704DA US 108704 A US108704 A US 108704A
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valves
improvement
valve
balance slide
plate
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K39/00Devices for relieving the pressure on the sealing faces
    • F16K39/02Devices for relieving the pressure on the sealing faces for lift valves
    • F16K39/022Devices for relieving the pressure on the sealing faces for lift valves using balancing surfaces

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  • the nature of our invention consists in providing an ordinary slide-valve with a plate fastened, at such a distance above lthe valve as necessity may require to adapt it to the steam-chest used, by means of a sufficient number of studs or bolts securely fastened in the top ofthe valve.
  • this plate In the top of this plate there is a groove or recess, into which is fitted a ring with steamtight joints. Iuthe recess between the plate and valve beneath this ring are perforations sufficient in number and size to admit a sufticient quantity of steam while working under pressure to sustain the ring against the steamchest lid, and, forming a steam-tight joint ber tween the ring and lid, preventing the passage ofsteanl between the plate and steam-chest lid, the plate to be of sufficient area to relieve the downward pressure on the valve, forming a1- together a complete balance-valve.
  • Plan A shows the top surface of the' plate withlring adjusted.
  • a A is the Valve.
  • B B B are studs or bolts, by which the grooved plate C C is secured to the valve.
  • D D is the ring or joint.
  • E E are the perfor-ations.
  • F F on Plan A show the surface View of the ring or joint forming a perfect balance slidevalve.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Housings (AREA)

Description

THOMAS J. HAMER AND MARTIN VALLS, OF SUNBURY, PENNSYLVANIA.
IMPROVEMENT IN BALANCE SLIDE-VALVES'.
Specification forming part of Letters Patent N0. 108,704, dated October 25, 1870.
To all whom it may concern:
Be it known that we, THOMAS J. HAMER and MARTIN WALLS, of the borough of Sunbury, county of Northumberland, and State of Pennsylvania, have invented a new Balance Slide Va1ve, by which the pressure of the steam is equalized; and we do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawing, and to the letters of reference thereon.
The nature of our invention consists in providing an ordinary slide-valve with a plate fastened, at such a distance above lthe valve as necessity may require to adapt it to the steam-chest used, by means of a sufficient number of studs or bolts securely fastened in the top ofthe valve.
In the top of this plate there isa groove or recess, into which is fitted a ring with steamtight joints. Iuthe recess between the plate and valve beneath this ring are perforations sufficient in number and size to admit a sufticient quantity of steam while working under pressure to sustain the ring against the steamchest lid, and, forming a steam-tight joint ber tween the ring and lid, preventing the passage ofsteanl between the plate and steam-chest lid, the plate to be of sufficient area to relieve the downward pressure on the valve, forming a1- together a complete balance-valve.
Description of the Accompanying Drawing.
Plan A shows the top surface of the' plate withlring adjusted. A A is the Valve. B B B are studs or bolts, by which the grooved plate C C is secured to the valve. D D is the ring or joint. E E are the perfor-ations. F F on Plan A show the surface View of the ring or joint forming a perfect balance slidevalve. j
What we claim as our invention, and desire to secure by Letters Patent, is-
The combination of the perforated grooved plate C with packing ring or joint D F, of any shape, supported above the valve A by the studs or bolts B B, all substantially as and for the purposes set fort-h.
T. J. HAMER. MARTIN VALLS.
US108704D Improvement in balance slide-valves Expired - Lifetime US108704A (en)

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US108704A true US108704A (en) 1870-10-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100331422A1 (en) * 1995-06-22 2010-12-30 3M Innovative Properties Company Stable hydroalcoholic compositions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100331422A1 (en) * 1995-06-22 2010-12-30 3M Innovative Properties Company Stable hydroalcoholic compositions

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