US1354601A - Staybolt structure - Google Patents

Staybolt structure Download PDF

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Publication number
US1354601A
US1354601A US320731A US32073119A US1354601A US 1354601 A US1354601 A US 1354601A US 320731 A US320731 A US 320731A US 32073119 A US32073119 A US 32073119A US 1354601 A US1354601 A US 1354601A
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US
United States
Prior art keywords
bolt
opening
sheet
boiler sheet
staybolt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US320731A
Inventor
Ethan I Dodds
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flannery Bolt Co
Original Assignee
Flannery Bolt Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flannery Bolt Co filed Critical Flannery Bolt Co
Priority to US320731A priority Critical patent/US1354601A/en
Application granted granted Critical
Publication of US1354601A publication Critical patent/US1354601A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B7/00—Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body
    • F22B7/16—Component parts thereof; Accessories therefor, e.g. stay-bolt connections

Definitions

  • T 0 @ZZ w 7mm t may concern Be it known that I, ETHAN I. DoDDs, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Staybolt Structures; and I do hereby de- Clare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
  • This invention relates to improvements in staybolt structures for boilers,-one object of the invention being to provide a simple construction affording a mounting for the headed end of a staybolt of the flexible type in which the curving of the wall of the bolt opening in the boiler sheet is obviated and whereby a separate bearing sleeve or member may be dispensed with and to effectually house or inclose the bolt head and its mounting on the boiler sheet, with the use of a cap or closure welded to the boiler sheet.
  • l represents an outer boiler sheet and 2 the inner or fire-box sheet.
  • the outer sheet l is provided with a bolt opening 3, the wall of which is tapering from the inner to the outer face of the sheet.
  • the wall of the opening is ⁇ made flaring from the outer face of the sheet toward the inner face thereof, and said wall is straight transversely of the sheet from one face to the other.
  • a staybolt a passes through the opening 3 and is provided with a head la which may be spherical or partly spherical in form.
  • the diameter of the body of the bolt at the neck 5 formed by the juncture of the head is slightly less than the diameter of the opening 3 at the smaller outer end of said opening', and the bolt head 4 has a movable bearing near said neck against the boiler sheet at the outer, smaller end of the opening 3. The bolt head is thus mounted on the boiler sheet and adequate play for the bolt will be afforded by the tapering form of said opening.
  • the inner end of the bolt may be secured to the inner boiler sheet 2 in any desired manner.
  • a cap or closure 6 which may be approximately hemispherical in form and is i'iiedly united to the boiler sheet around the opening therein, by means of a weld 7, the latter effecting an integral union of the cap or closure with the boiler sheet.
  • a tell-tale hole 8 may be made to extend from the end of the bolt and terminate at its outer end in the headed end of the bolt, for test-ing purposes.
  • a staybolt structure the combination of a boiler sheet provided with a bolt opening, a bolt having a head mounted on the boiler sheet at the outer end of the opening therein, and a cap or closure inclosing the bolt head and secured to the boiler sheet.
  • a staybolt structure the combination of a boiler sheet provided with a tapering bolt opening, the smaller end of said opening being located at the outer face of the sheet, a bolt having a head mounted on the boiler sheet at the smaller end of said opening, a cap or closure inclosing the bolt head and engaging the boiler sheet around said opening, and a weld eecting an integral union of the cap or closure with the boiler sheet.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Description

E. l. DODDS.
sTAYBoLT STRUCTURE.
Patented Oct. 5, 1920.
UNITED STATES PATENT OFFICE.
ETI-IAN I. DODDS, OF PITTSBURGH,
PENNSYLVANIA.
STAYIBOLT STRUCTURE.
Specification of Letters Patent.
Patented Oct. 5, 1920.
Application filed August 29, 1919. Serial No. 320,731.
T 0 @ZZ w 7mm t may concern Be it known that I, ETHAN I. DoDDs, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Staybolt Structures; and I do hereby de- Clare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
This invention relates to improvements in staybolt structures for boilers,-one object of the invention being to provide a simple construction affording a mounting for the headed end of a staybolt of the flexible type in which the curving of the wall of the bolt opening in the boiler sheet is obviated and whereby a separate bearing sleeve or member may be dispensed with and to effectually house or inclose the bolt head and its mounting on the boiler sheet, with the use of a cap or closure welded to the boiler sheet.
With this and other objects in view, the invention consists in certain novel features of construction and combinations of parts as hereinafter set forth and pointed out in the claims.
The accompanying drawing is a sectional view showing an embodiment of my invention.
l represents an outer boiler sheet and 2 the inner or lire-box sheet.
The outer sheet l is provided with a bolt opening 3, the wall of which is tapering from the inner to the outer face of the sheet.
That is to say,-the wall of the opening is` made flaring from the outer face of the sheet toward the inner face thereof, and said wall is straight transversely of the sheet from one face to the other.
A staybolt a passes through the opening 3 and is provided with a head la which may be spherical or partly spherical in form. The diameter of the body of the bolt at the neck 5 formed by the juncture of the head, is slightly less than the diameter of the opening 3 at the smaller outer end of said opening', and the bolt head 4 has a movable bearing near said neck against the boiler sheet at the outer, smaller end of the opening 3. The bolt head is thus mounted on the boiler sheet and adequate play for the bolt will be afforded by the tapering form of said opening.
The inner end of the bolt may be secured to the inner boiler sheet 2 in any desired manner.
In order that the bolt head and its mounting` on the boiler sheet shall be effectually inclosed, I employ a cap or closure 6, which may be approximately hemispherical in form and is i'iiedly united to the boiler sheet around the opening therein, by means of a weld 7, the latter effecting an integral union of the cap or closure with the boiler sheet.
A tell-tale hole 8 may be made to extend from the end of the bolt and terminate at its outer end in the headed end of the bolt, for test-ing purposes.
Having -fully described my invention what I claim as new and desire to secure by Letters-Patent, is
l. In a staybolt structure, the combination of a boiler sheet provided with a bolt opening, a bolt having a head mounted on the boiler sheet at the outer end of the opening therein, and a cap or closure inclosing the bolt head and secured to the boiler sheet.
2. In a staybolt structure, the combination of a boiler sheet provided with a tapering bolt opening, the smaller end of said opening being located at the outer face of the sheet, a bolt having a head mounted on the boiler sheet at the smaller end of said opening, a cap or closure inclosing the bolt head and engaging the boiler sheet around said opening, and a weld eecting an integral union of the cap or closure with the boiler sheet.
In testimony whereof, I have signed this specication.
ETHAN I. DODDS.
US320731A 1919-08-29 1919-08-29 Staybolt structure Expired - Lifetime US1354601A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3805068A1 (en) * 2019-10-10 2021-04-14 Deutsche Bahn AG Boiler walls

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3805068A1 (en) * 2019-10-10 2021-04-14 Deutsche Bahn AG Boiler walls

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