US1347560A

US1347560A - Staybolt structure

Info

Publication number: US1347560A
Authority: US
Publication date: 1920-07-27
Anticipated expiration: 1937-07-27

Description

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1 347 560 PatentedJuly 27,1920.

ma NW mumm UNITED-STATES PATENT OFFICE.

BENJAMIN n. n. srarronn AND ETI-IAN I. nonns, or :errrsnunen, PENNSYLVANIA,

' I .ASSIGNORS T0 FLANNERY BOLT COMPANY, OFPITT SBURGH, PENNSYLVANIA.

j STAYBOLT STRUCTURE.

To all whom it may concern:

Be it known that we, BENJAMIN E. D. STAFFORD and E'rnAN I. DODDS, citizens of the United States, and residents of Pittsburgh, in the county of Allegheny and State of Pennsylvania, haveinvented certain new anduseful Improvements in Staybolt Structures, and we do hereby declare the following to be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make and use the same. I This invention relates to improvements 1n staybolt structures, .one object of the invention being to provide a structure 111 whlch the bearing sleeve or member for the spherical or spheroidal head of a staybolt, shall be sov mounted in the outer boiler sheetthat it ,will become so disposed as to insure accurate 'alinement with the bolt opening of the inner boiler sheet when the two boiler sheets are disposed at an angle to each other or when the openings in parallel boiler sheets are not in accurate alinement, and to provide: means whereby the bearing member may be secured in the position 1n which it may be set or adjusted.

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, l 1 In the accompanying drawings; Figure 1 is a sectional view illustrating an eIl'lbOClP ment of our invention, and Figs. 2 and 8 aresimilar views showing certain modificag tions. I I 1 represents an inner'boiler sheet, and 2 an outer boiler sheet such, for example, as

the roof sheet which is disposed at ans-angle to said innersheet, 1 Theouter or root sheet 2 is made'with openings, each ofwhich'may be tapering- 'viz. made larger at theouter end than at Specification of Letters Patent.

Application filed April 30, 1919.

' Patented July 27, 1920.

Serial No. 293,629.

made with an opening 5 therethrough which end of the staybolt may be threaded to pass through the inner boiler sheet 1 and this inner end of the staybolt may be upset against the inner boiler sheet, as shownat 9.

The outer or upper portion of the partly spherical sleeve or bushing member 4 is threaded interiorly as at 10 to receive the external threads of a cap or closure 11 having an angular portion 12 to receive a wrench. The inner portion of the cap or closure 11 may be recessed to provide an adequate clearance space 18 between the bolt head and the cap.

IVhen the partly spherical bearing sleeve or bushing shall have become properly set or adjusted, said sleeve or bushing will be welded to the boiler roof sheet 2 with the use of a wvelding alloy (as indicated at 14) which is located around said sleeve or bushing in a manner to become welded to the same and to the boiler roof sheet and to enter anyrecess (as at 15) which may oc cur between the outer face of said sleeve or bushing and the edge of the opening in the boiler sheet, said sleeve being thus 1ntimately united to the boiler sheet.

In the form of the invention shown in Fig. 2, the head? of the staybolt is made more nearly spherical than the bolt head 7 shown in Fig. 1. In the construction shown in'Fig. 2, the opening through the partly spherical bearing sleeve or bushings is made slightly tapering with the curved seat 4 for the bolt head at its lower endan'd said sleeve or bushing''c is made with an annular flange or extension 16 which is internally threaded as at 17 to receive an externally threaded closure 18. This closure may be provided with a flange 20 to overlie the annular flange or extension 16.

In the construction shown in Fig. 3 the sleeve or bushingindicated at 21 has a general tapering shape with the bearingfor the bolt head 7 inits lower curved or partly greater diameter at spherical portion 22. In this form, the wall of the opening 23 in the boiler roo'l or sheet the curvature of the wall of the opening in the boiler sheet, is intended to mean that said wall is curved in a direction extending from one face of the'sheet toward the other face, and the use of the term tapering in describing the opening in the boiler sheet. is intended to describe an opening which has one end than at the other.

Other changes might be made in the dey tails of construction of our invention without departing from the spirit thereof or limiting its scope and hence we do not wish to restrict ourselves to the precise details herein set forth.

Having fully described our invention what we claim as new and desire to secure by Letters-Patent, is I 1. In a staybolt structure for boilers, the

combination with a boiler sheet provided with an opening, of a sleeve or bushing adapted to have initial universally movable mounting in said opening and having an illterior bearing for the head of a staybolt, a staybolt having a head mounted on the interior bearing of said sleeve or bushing and means forsecuring said sleeve or bushing to the boiler sheet. 7

9.. In a staybolt structure for boilers, the combination with a boiler sheet provided with an opening, of a sleeve or bushing adapted to have initial universally movable mounting insaid opening and having an interior bearing for the head of a staybolt, a staybolt having a rounded head mounted on the interior bearing of said sleeve or bushing, and a welded connection securing said sleeve or bushing to the boiler sheet.

3. In a staybolt structure for boilers, the combination with a boiler sheet having, an opening provided with a transversely curved wall, of a spheroidal sleeve having a mounting on said transversely curved wall, said sleeve or bushing having a bearing therein for the curved head of a staybolt, and a staybolt having a rounded head mounted on said bearing inthe sleeve or bushing.

4. In a staybolt structure for boilers, the combination with a boiler sheet having an opening provided with a transversely curved wall, of a spheroidal sleeve or bushing .mounted on said transversely curved wall,

said sleeve or bushing having an interior bearing for the curved head ofa staybolt, a

, staybolt having a curved head mounted on said bearing in the sleeve or bushing, and a weld securing said sleeve or bushing to the boiler sheet.

. 5. In a staybolt structure, the combination with a boiler sheet having an opening, of a spheroidal member mounted in said opening and having an opening therethrough larger at one end than at the other, said spheroidal member also having therein a bearing for the head of a staybolt, and fa weld securing said spheroidal member to the boiler sheet.

6. In a staybolt structure, the combination with a boiler sheet having a tapering openingtherein, of a bearing member having an initial universally adjustable mounting in said tapering opening, said member having an internal bearing for the head of a staybolt, a staybolt having a head mounted in said bearing member, and a weld securing said member in adjusted position to the boiler sheet.

7. In a staybolt structure for boilers, the combination with a boiler sheet having an opening, of a spheroidal member adapted to have initial universally movable mounting in said opening, said spheroidal member having an opening therethrough which is larger at one end than at the other and also having a bearing for the head of a staybolt, a staybolt having a head mounted on the hearing within said spheroidal member, and

a closure closing the larger end of the open ing in said spheroidal member.

8. In a staybolt structure, the combination with a boiler sheet provided with an open ing having a transversely curved wall, of a spheroidal member mounted-on said transversely curved wall, said spheroidal member having an opening therethrough which is larger at one, end than at the other and also having an interior bearing for the rounded head of a staybolt, a staybolt entering said spheroidal member and having a rounded head mounted on the bearing therein, a closure closing the larger end of the opening in said spheroidal member, and a welded connection between said spheroidal member and the boiler sheet. I

9. In a staybolt structure, the combination with a boiler sheet having a socket seat, of a spheroidal sleeve mounted in said socket seat whereby a ball-and-socket connection is alforded between said sleeve and the boiler sheet, the said spheroidal sleeve having an opening larger at one end than at the other end and having therein a bearing for the head of a staybolt, and a staybolt entering said sleeve and having a head mounted on the bearing therein, and means for securing said spheroidal sleeve to the boiler sheet.

10. In a staybolt structure, the combination with a boiler sheet having an opening, of a spheroidal sleeve entering said opening and having a bearing for a bolt head, and means for securing said spheroidal sleeve to a boiler sheet.

11. In a staybolt structure, the combination of a boiler sheet having an opening, of a spheroidal sleeve having therein a bearing for a bolt head, said sleeve entering the open ing in the boiler sheet, and a weld securing said spheroidal sleeve to the boiler sheet.

12. In a staybolt structure, the combination with two boiler sheets, one of said sheets having an opening therein, of a spheroidal sleeve adapted to have initial universal mounting in said opening in the boiler sheet, said sleeve having an internal bearing for the head of a staybolt, a staybolt having a head mounted on said internal bearing, means securing the other end of the staybolt to the adjacent boiler sheet, and means securing said spheroidal sleeve to the boiler sheet in which it is mounted.

13. In a staybolt connection for boilers, the combination of a boiler sheet having an opening with a curved or rounded wall, and a curved or rounded sleeve mounted in said opening and supported on said curved or rounded wall of the same, the said sleeve being secured to the boiler sheet by welding.

14. In a staybolt connection for boilers, the combination of a boiler sheet having an opening, a sleeve adapted to have initial universally movable mounting in said opening, and means for securing said sleeve to the boiler sheet, said means consisting of a welded connection between the sleeve and the boiler sheet.

15. In a staybolt structure, the combination with boiler sheets, one of said sheets having a socket seat, of a sleeve of tubular form and having a curved outer portion mounted on said socket seat, said sleeve having a seat therein for the rounded head of a staybolt, a staybolt having a rounded head mounted on the seat within said sleeve, means for capping the sleeve, means for securing the sleeve to the boiler sheet in which it is mounted and means securing said bolt to the other boiler sheet.

16. In a s'taybolt structure, the combination with a boiler sheet having an opening, of a sleeve having a ball-and-socket connection with the boiler sheet at the opening therein and having aninternal bearing for the head of a staybolt. 17. A hearing sleeve for the head of a staybolt, having an exterior curved portion forming a seat whereby said sleeve may have universal adjustment in a boiler sheet, and said sleevehaving an internal seat whereby the head of a staybolt may be mounted therein.

In testimony whereof we have signed this Specification in the presence of two subscribing wltnesses.

BENJAMIN E. D. STAFFORD. ETHAN I. DODDS.

Witnesses:

F. H. ALLISON, EDWIN S. RYoE.