US1364100A - Staybolt structure - Google Patents

Description

J. R. FLANN ERY, B. E. D. STAFFORD AND E. I. DODDS.

STAYBOLT' STRUCTURE. APPLICATION FILED SEPT. I2, 1919.

1,364,100. Patented Jan. 4, 1921,

5 aZdMIJVI ENTOKS 'aw- M 14 1101722 yr UNITED STATES PATENT OFFICE.

JOHN ROGERS FLANNERY, BENJAMIN E. D. STAFFORD, AND ETHAN I. DODDS, 0F PITTSBURGH, PENNSYLVANIA, ASSIGNORS TO FLANNERY BOLT COMPANY, OF

PITTSBURGH, PENNSYLVANIA.

STAYBOLT STRUCTURE.

Specification of Letters Patent.

Patented Jan. 4, 1921.

T 0 all whom it may concern:

Be it known that we, JOHN ROGERS FLAN- NERY, BENJAMIN E. D. STAFFORD, and ETHAN I. Donns, citizens of the United States, and residents of Pittsbur h, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in staybolt Structures; and we do hereby declare 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 simple and efiicient means in a universally movably mounted bearing sleeve or member for the head of a staybolt, whereby staybolts having relatively small heads may be mounted in said sleeve or bearing member.

IVith this and other objects in view, the invention consists in certain novel features ofconstruction and combinations of parts as hereinafter set forth and pointed out in the claims.

In the accompanying drawings: Figure 1 is a sectional view of a staybolt structure showing an embodiment of our invention, and Figs. 2 and 3 are similar views showing different ways of mounting the bearing sleeve.

1 represents a boiler sheet having an opening 2,-the major portion of the wall of which is rounded to form a seat 3 for a hearing sleeve 4. The outer or upper portion 5 of this sleeve may be made cylindrical and its lower or inner end portion is made with a rounded exterior face 6 to engage the rounded seat 3 in the opening in the boiler sheet. The sleeve 4 is thus so mounted in the boiler sheet that it is universally movable or adjustable to insure proper alinement of the staybolt (which is installed as hereinafter described) with its points of connection with the respective boiler sheets, and when the sleeve shall have been properly adjusted, it will be united to the boiler sheet by means of a weld 4.

The bearing sleeve 4 is provided in proximity to its lower or inner end with an internal annular shoulder 7 disposed at right angles to the longitudinal axis of the sleeve made slightly flaring.

A bearing ring 9 is located within the slightly tapering inner portion of the sleeve and rests freely upon the annular shoulder 7, the peripheral portion of said ring engaging the slightly tapering wall 8. The ring 9 is made with an interior curved seat 10, for the rounded head 11 at the outer end of a staybolt 12, the inner end of which latter may be secured to the inner boiler sheet 13 in any suitable manner. The bearing ring 9 may be beveled interiorly as at 9 in line with the wall of the flaring opening 15 at the lower or inner end of the bearing sleeve 4.

The bearing ring 9 inserted into the bearing sleeve 1 permits the use of staybolts having heads smaller than the average sized heads of boiler staybolts and it will be understood that bearing rings having seats of different dimensions may be provided so that the sleeve may be adapted to the size of the particular bolt heads which it may be desired to employ.

The cylindrical outer end portion 5 of the sleeve 1 may be threaded interiorly to receive a threaded hollow plug or closure 14 havin an angular portion 15 to receive a wrench Between the inner end of the plug or closure 14' and a shoulder 16 in the sleeve, a gasket 17 is disposed.

Instead of rounding the wall of the opening in the boiler sheet throughout the major portion of the thickness of the sheet as shown in Fig. 1, to provide a seat for the bearing sleeve,-the boiler sheet may be provided with an opening having its wall flaring approximately from the outer face of the sheet to the inner face thereof, as indicated at 18, Fig. 2, and at the outer smaller end of said opening, a short beveled seat 19 may be provided and on which the lower or inner rounded end of the bearing sleeve has a universally movable mounting. When the bearing sleeve shall have been properly adjusted, it will be united to the boiler sheet by means of a Weld 21.

In the construction shown in Fig. 3, the boiler sheet is made with an opening 22 hav- 1ng uniform diameter throughout the thickness of the sheet and the bearing sleeve has a universally movable mounting on the boiler sheet at the outer end of said opening. WVhen properly adjusted, the Sleeve will be united to the boiler sheet by means of a weld 28.

In Figs. 1 and 2 the bolt head is shown as having a slot 24 to receive a screw driver, while in Fig. 3, a partly spherical bolt head 25 is shown provided with an angular portion 26 to receive a Wrench.

Having fully described our invention what we claim as new and desire to secure" sleeve, a ring located within said sleeve and seated on said annular shoulder, said ring occupying space between the bolt head and the inner wall of the sleeve and said ring 7 having a seat therein for the bolt head, and a weld uniting said sleeve to the boiler sheet 'and a seat -for a bearing member, of a bearing member having initial universally .mov-

- able mounting .on-xsaidv seat,.a. weld'uniting said bearing membereto theboiler sheet, said bearing member having an internal flange forming a flat shoulder at right angles to the inner wall of the bearing member and in proximity to the inner end of .the latter, a ring seated on said fiat shoulder, said ring having a rounded seat therein, and a staybolt having a rounded head engaging the rounded seat in said ring. v p v I11 testimony whereof we havesigned this specification in the presence of two subscribing witnesses. JOHN ROGERS'FIJAN-NERY. BENJAMIN E. 'D. STAFFORD. ETHAN I. DODD'S. 1

Witnesses:

JAMES R. HORAN, EDWIN S, Rron,

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