US147446A - Improvement in steam-boiler flues - Google Patents

Improvement in steam-boiler flues Download PDF

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US147446A
US147446A US147446DA US147446A US 147446 A US147446 A US 147446A US 147446D A US147446D A US 147446DA US 147446 A US147446 A US 147446A
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steam
improvement
boiler
brace
boiler flues
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling

Definitions

  • the first part of my invention consists in bracing a thin sheet-metal boiler-fine by inserting therein a spiral Strengthening-brace, which will prevent the collapsing of the flue, and yet can easily be removed or replaced.
  • My invention further consists in combining a conical fiue of thin sheet metal and an internal correspondin gl y-tapered spiral brace, whereby great 'strength is obtained with the Smallest practicable quantity of material.
  • This brace may be made either of round wire or of strips of metal, and is simply driven into the flue; it may, however, if preferred, be riveted, soldered, or otherwise fastened therein. A detachable fastening is preferred, as by its use the brace can be removed When (lesired.

Description

UNITED STATES PATENT V OFFICE.
CHARLES B. STILWELL, OF NEW' YORK, N. Y.
IMPROVEVMENT !N STEAM-BOILER FLUES.
Specification forming part of Letters Patent No. 147,446, dated February 10, 1874; application filed J une 28, 1873.
son, show such a boiler having tubes of thin sheet metal, braced by rings fitted looscly therein.
The first part of my invention consists in bracing a thin sheet-metal boiler-fine by inserting therein a spiral Strengthening-brace, which will prevent the collapsing of the flue, and yet can easily be removed or replaced. My invention further consists in combining a conical fiue of thin sheet metal and an internal correspondin gl y-tapered spiral brace, whereby great 'strength is obtained with the Smallest practicable quantity of material.
The accompanying drawings show one of my improved fiues, A, partially broken to show the spiral brace B within.
This brace may be made either of round wire or of strips of metal, and is simply driven into the flue; it may, however, if preferred, be riveted, soldered, or otherwise fastened therein. A detachable fastening is preferred, as by its use the brace can be removed When (lesired.
I claim as my invention- 1. The combination of a spiral strengthening-brace and a boiler-flue.
2. The combination, substantially as set forth, of a conical boiler-flue and a continuous spiral Strengthening-brace.
In testimouy whereof I have hereunto subscribed my name.
CHAS. B. STILWELL.
VVitnesses:
E. O. DAVIDSON, Jos. I. PEYTON.
US147446D Improvement in steam-boiler flues Expired - Lifetime US147446A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467559A (en) * 1949-04-19 Ventilating tubing
US3929249A (en) * 1975-04-21 1975-12-30 Avm Corp Vacuum reservoir
US3948291A (en) * 1973-06-06 1976-04-06 Ab Bahco Ventilation Stiffening device
US20030196716A1 (en) * 2002-03-04 2003-10-23 Lindsay Howard A. Design and manufacturing method for multi-material tube structures
US6820654B2 (en) 2000-06-16 2004-11-23 Vyatek Sports, Inc. High performance composite tubular structures
US20090131904A1 (en) * 2007-11-19 2009-05-21 Wright John D Internal threads in tubing
US20100113181A1 (en) * 2002-11-12 2010-05-06 Vyatek Sports, Inc. Multi-material golf clubhead

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467559A (en) * 1949-04-19 Ventilating tubing
US3948291A (en) * 1973-06-06 1976-04-06 Ab Bahco Ventilation Stiffening device
US3929249A (en) * 1975-04-21 1975-12-30 Avm Corp Vacuum reservoir
US20050196570A1 (en) * 2000-06-16 2005-09-08 Lindsay Howard A. High performance composite tubular structures
US6820654B2 (en) 2000-06-16 2004-11-23 Vyatek Sports, Inc. High performance composite tubular structures
US20050161103A1 (en) * 2002-03-04 2005-07-28 Lindsay Howard A. Design and manufacturing method for multi-material tube structures
US6896006B2 (en) 2002-03-04 2005-05-24 Vyatek Sports, Inc. Design and manufacturing method for multi-material tube structures
US20030196716A1 (en) * 2002-03-04 2003-10-23 Lindsay Howard A. Design and manufacturing method for multi-material tube structures
US20060151046A1 (en) * 2002-03-04 2006-07-13 Lindsay Howard A Design and manufacturing method for multi-material tube structures
US7207354B2 (en) 2002-03-04 2007-04-24 Vyatek Sports, Inc. Design and manufacturing method for multi-material tube structures
US7314067B2 (en) 2002-03-04 2008-01-01 Vyatek Sports, Inc. Design and manufacturing method for multi-material tube structures
US20080088112A1 (en) * 2002-03-04 2008-04-17 Vyatek Sports, Inc. Manufacturing method for multi-material tube structures
US7475705B2 (en) * 2002-03-04 2009-01-13 Vyatek Sports, Inc. Manufacturing method for multi-material tube structures
US20100113181A1 (en) * 2002-11-12 2010-05-06 Vyatek Sports, Inc. Multi-material golf clubhead
US20090131904A1 (en) * 2007-11-19 2009-05-21 Wright John D Internal threads in tubing

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