US1403744A

US1403744A - Stay-bolt structure

Info

Publication number: US1403744A
Application number: US352691A
Authority: US
Inventors: Ethan L Dodds
Original assignee: Flannery Bolt Co
Current assignee: Flannery Bolt Co
Priority date: 1920-01-20
Filing date: 1920-01-20
Publication date: 1922-01-17
Anticipated expiration: 1939-01-17

Description

- E. l. nouns.'

STAY `BOLT STRUCTURE.

APPLlc/mou mib lm zo, 1920. n 1,403,744, Patented Jan. 17, 1922.

u s sains-sniff l.

1 y NVE/V701? www flomeys E. I. DODDS. STAY BOLT STRUCTURE.

APPLICATION FILED JAN. 20. 1920- 1,403,744.

5 SHEETS-SHEET 3.

Patented Jan. 17, 1922.

E. I. DODDS. STAY BOLT STRUCTURE.

i APPLICATIONWHLED JAN. 20, |920. 1,403,744. Y

5 SHEETSSHEET 4.

gvz/E'NTOR 7mm* Ms Patented Jan. 17, 1922.

' l APPLlcAnoN man 1AN.2o. 1920.

E. I. DODDS. STAY BOLT STRUCTURE.

Patented Jah. 17, 1922.

5 sH-Eers-snfgrs.

NVENTOR 5T/,VM

rm', KA Alfnmeys lJNlTED STATES PATENTA OFFICE.

ETHAN I. IDODDS, 0F PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO FLANNERY BOLT COMPANY, OF PITTSBURGH, PENNSYLVANIA.

STAY-BOLT STRUCTURE.

Specification of Letters Patent.

Patented Jan. 17, 1922.

Application tiled January 20, 1920. Serial No. 352,691.

T 0 @ZZ/107mm #may concern:

Be it known that I, E'rrinn' I. Donne, a citizen of the United States, and a resident of littsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvement-s in Stay-Bolt Structures; and I do hereby declare the following t0 be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it apport-airis to malte and use the same.

This invention relates to improvements in staybolt structures for boilers and particuarly to means for mounting the head of the sta-ybolt in the outer boiler sheet,-one object of the invention being to provide a simple and efficient structure comprising two inembers removably connected together` which may have an adjustable mounting relatively to the boiler sheet and be welded to the latter when adjusted, and which shall be capable of being so connected with the outer boiler sheet that its outer end may be substantially flush with trie outer face of said sheet or of being so mounted as to project beyond the outer face of Jthe boiler sheet.

A further object is to provide a two-part structure comprising a bearing member and closure which shall be so connected and associated that either or both may be seated in the opening in the boiler sheet.

1With these 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.

in the accompanying drawings; Figure l is a sectional view, partly in elevation, showing an embodiment of my invention; Figure 2 is a view showing` another manner in which the devices may be mounted in the opening in the boiler sheet; Figures 3 and 4 are views showing different ways of mounting a modified structure, and Figures to 18 are views showing various modifications.

1 represents a boiler sheet having an opening the major portion of the wail of which may be straight and substantially cylindrical, but the wall of the opening in the boiler sheet is rounded near its inner end, near the inner face of the boiler sheet, to form a rounded seat 3 for a bearing structure (as hereinafter described) in which the rounded head 4: atthe outer end of a staybolt 5 is mounted,-the inner end of the staybolt being secured to the inner boiler sheet 6 in any suitable manner.

The bearing structure above referred to, comprises a bearing ring? haring an internal rounded seat 8 for the rounded head of the staybolt, and a hollow member 9 approximately senii-elliptical in cross-section,the latter being threaded interiorly, as at 10, to receive the threaded peripheral portion of the bearing ring. The member 9 constitutes a closure over the bolt head and is so formed as to provide a clearance space 11. A gasket 12 is located between one end of the bearing ring 7 and a shoulder 12 in the closure member 9.

The closure member 9 is rounded exteriorly, as at 18, and has a universally movable or adjustable mounting on the rounded seat 8 in the boiler sheet, and said closure member may also be provided with an angular portion 14 to receive a wrench.

By so mounting the bearing structure in the opening in the boiler sheet that it may be universally movable, it may be readily adjusted to insure accurate alignment of the staybolt with its point of connection with the respective boiler sheets.

It will be observed that in the embodiment of the invention shown in Figure 1, the bearing structure is so mounted in the opening in the outer boiler sheet that its outer end will be substantially flush with the outer face of said sheet. That portion of the opening in the boiler sheet between the outer portion of the closure member 9 and the straight wall of said opening will form an annular space and within the inner portion of this space, a weld 15 is located (when the bearing structure shall have been properly adjusted), said weld overlying a portion of said closure member and fixedly uniting the same to the wall of the opening in the boiler sheet.

In the embodiment of invention shown in Figure 2, the bearing structure is so mounted in the boiler sheet as to project beyond the outer face of the latter. In this instance, the inner portion of the opening 1G inthe boiler sheet may have a straight wall, but the other portion of the wall of said opening-is rounded, as at 17, and both the closure member and the bearing ring have universally movable mountings on said rounded seat, the inner end portion of the ring being made with a rounded face 18 for this purpose in the saine are asthat ol the rounded portion l0 of the closure niember. lrVhen the bearing structure is thus mounted, it will be Welded to the outer face of the boiler sheet by a Weld 19 which surrounds the closure' member of said structure.

ln the'construction-shown in Figure 3, the

boiler sheet l is provided with a tapering opening 20, the inner l portion of the wall ot Which is slightly curved to provide a. seat 2l `for a-closure member 22 which is so located in the opening in the boiler sheet that its central portion will be substantially flush With the outer :tace of the boiler1 sheet. The closure member shown in Figure 3 is approximately semi-elliptical in cross section, presenting a curved or rounded peripheral portion 23 so that the structure may have .a universally adjustable mounting on the seat afforded by the wall or" the opening in the boiler sheet. The portion Q3 of the closure member is threaded internally for the reception of the bearing ring 24rin which the head of the staybolt is mounted, and said bearingring is .formed with a shoulder 25 to receive the edge of the closurermember. The tace 26 of the bearing ring is rounded in the same arc as that of the portion 23 of the closure member. `At Weld 27 Within the opening in the boiler sheet unites the structure to the latter.

The bearing structure shown in Figure Llis the same as that shown in Figure 3, but in Figure 4; the Wall of the opening in the boiler sheet is made to form a rounded seat 28, and the bearing structure is so mounted von this seat that both

members

22 and 24 engage the same and are thus mounted so as to be universally adjustable. In Figure 4 the closure member 9.2 is united to the outer face of the boiler sheet by a Weld 29.

In the construction shown in Figure 5,

.the bearing ring only has a universally movable mounting in the opening in the boiler sheet and the closure member 30 is made conical and beveled at 3l, both of said members being united to the boiler sheet by a Weld 32. By making the closure member'eonical, it may be mounted in aconical opening in the boiler sheet when a flush mounting is desired, and Welded to the sheet at the beveled portion 31.

`In the embodiment of my invention shown in Figures 6 to l1, l represents an out-er boiler sheet and '2a an inner boiler sheet, with which latter, the inner end oit a staybolt 3- is connected in any suitable manner and said bolt is )rovided at its -outer end With a head 4a which may be connected with .the outer boiler sheet as hereinafter described.

In Figure 6, thel outer boiler sheet l is provided -with an opening 5, a portion ot which may be cylindrical and has a diame- Y ter appreciably greater than that of the Y staybolt which passes through it, and a portion of said opening is enlarged and rounded to form a rounded seat 6a.

' 7 represents a bearing sleeve or member, the inner' lend portion ot which may be rounded to provide a rounded exterior portion 7b which may have a universally movable or adjustable mounting on the rounded seat 6a in the boiler sheet, and a rounded interior seat 8a on which the rounded head of the staybolt has its mounting. The outer Vend portion of the bearing sleeve `is threaded externally as at 9a and receives the internally threaded flange l0L of a one-piece closure member lla. A gasket 12'v may be disposed between the closure member lla and the outer end of the bearing sleeve 7a.

The peripheral portion of the closure member and its Yflange are rounded, as indicated at 13 and Illa (the rounded portion 1B being, in eit'ect, a beveled edge) and said closure member may be madewitli an angular recess 15L to receivel a Wrench.

When the bearing structure is mounted as shown in Figure 6, (in which the bearing sleeve is universally adjustable on its seat in the boiler sheet to insure proper alignment oliI the staybolt With its points of connection with the respective boiler sheets), a Weld 16a surroun'dingjsaid'sleeve unites the same With the outer face of the boiler sheet. Y

lVhen a Hush mounting is desired, the

structure may be mounted in the boiler sheet as shown in Figure '7. rllhe outer boiler sheet is here shown as provided With an opening 17, a portion of the Wall of which may be made tapering and the inner portion ot said Wall may be made slightly curved to form a seat 1S for the rounded portion lita of the closure member lli-fthe major portion ot the latter' being located Vwithin the opening in the boiler sheet With its youter end substantially flushY With the outer tace ot said sheet. Thus it will be seen that in Figure 7, the closure member llL has a universally adjustable mounting in the opening in the vboiler sheet and that the strain exerted by the bolt on the Vbearing sleeve is sustained bythe closure mem ber. Y

The rounded portion Vl5a of the closure member cooperates with the straight outer portion of the Wall of the opening inthe .boiler sheet to form a groove in which a weld 19a is located and serves 'to iizredly unite the closure member to the boiler sheet, after any necessary adjustment ot the bearing structure shall have been effected.

ln the construction sh'oivn in Figure 8, ka bearing sleeve 2Oa is provided near its upper or outer end with a rounded seat 2l?L for the rounded head 4l) o1 the 'stayb'oln' said head' being shown ovoid in shape, and the boiler sheet l 1s made with an opening 22 which may be cylindrical throughout its major portiem-the outer end portion of the opening being enlarged and its Wall rounded to :torm a seat 23 for the rounded exterior portion of the bearing sleeve. The bore ot' the opening in the bearing sleeve may be made tiaring :from the seat 21 to the inner end ot said sleeve as indicated at 2l?. The closure member 11b shown in Figure S is made with a peripheral portion 25 having a part surrounding` the bearing sleeve and threaded thereto and the outer edge ot' said peripheral portion may be beveled as shown at 26H'.

T he closure member 11b is formed therein with an angular enlargement Q7 to receive a wrench. rThe peripheral portion 25a ot the closure member is made with a trans versely rounded face 28a.

-When the bearing sleeve is mounted as shown in Figure 8, it will be united to the boiler sheet (after having been properly adjusted) by a Weld 25), surrounding said sleeve.

The bearing structure shown in Figure 9 is the same as that shown in Figure 8, but in the arrangement shown in Figure 9, the opening in the boiler sheet is so formed as' to present a rounded wall extending nearly through the sheet, whereby a rounded seat 30 is formed on which the peripheral portion of the closure member has a universally adjustable mounting, and the outer end of the closure member will lie substantially Hush with the outer face of the outer boiler sheet. The outer end portion of the opening in the boiler sheet is beveled as at 31a and this beveled face forms, with the beveled portion 26 ot the closure member, a groove Which receives a Weld 82a, said Weld fixedly uniting the closure member to the boiler sheet.

1n the construction shown in Figure 10, the bearing member 33 is made with a plain rounded outer face and may have a universally adjustable mounting onV the seat formed by the rounded Wall 134C of the opening in the boiler' sheet. Then thus mounted and properly adjusted the bearing member will be Welded to the boiler sheet as at 35. The bearing member is threaded internallyT and receives a threaned annular flange 36 projecting from and forming part ot' the closure member 3T, the latter being constructed to be mounted in and secured to the boiler sheet in the same manner as shoivn in Figure 9, ivhere a flush mounting is desired.

1t Will be observed that the rounded portions of the closure members Which on the wall ot the opening in the boiler sheet mark segments of circles which are difierent from the segments marked by the rounded exterior portions of the bearing members.

In some positions on the boiler structure. it may be found desirable to substitute a small plug closure tor the closure member shown in Figure 10. Such a plug closure is shown at 38 Figure 11 screwed into the bearing member ln the embodiment olf the invention as shown in Figure 1i, the outer boiler sheet 1 is provided with an opening 5, a portion ot which is curved transversely o'f the sheet to provided a. rounded seat 6" Yfor a bearing structure. The said bearing structure coniprises a bearing sleeve or member 7C haif'ing an internal rounded seat 8" for the bolt head and an exterior rounded portion 9 concentric with the rounded seat 6b in the opening in the boiler sheet, and a closure member 10b. A portion of the bearing sleeve is threaded exteriorly to enter the threaded interior ot' the closure member, as indicated at 11C, and said closure member is rounded exteriorly as at 12b. rFhe rounded portion 12" ot the closure member and the rounded portion 9" ot the bearing sleeve may be curved in the same are, so that when the structure is mounted in the opening in the boiler sheer, both members T" and 10" may have a universally adjustable mounting on the rounded seat 6" in the boiler sheet. Then the structure shall have been properly adjusted to' insure accurate alignment ot the staybolt with its points or connection with the respective boiler sheets, it ivill be Welded steam-tight to the outer boiler sheet by a Weld 13b surrounding the closure niember.

The closure member has an approximately semi-elliptical shape in cross section, ivith an annular 'flange 14D, the edge portion of which is beveled as at 15b.

lVhen the mounting is to be employed as a flush structure, the opening` 16b in the boiler sheet may have a portion 17h ot its Wall straight and a portion near the inner tace of the sheet, rounded at 18, as shown in Figure 15. The mounting` will be disposed y'in this opening in the boiler sheet so that the rounded portion 12 or" the closure member Will have a universally adjustable bearing on the seat 18b in the boiler sheet, and the tlanged portion ot said closure member disposed Within the opening 161 and approximately tlush with the outer face ot the outer boiler sheet. The beveled edge 15b of the tia-nge 14" will now term, with a portion of the wall 17h o the opening 1Gb, a groove in which a Weld 19" is located, said Weld fixedly uniting the llange of the closure member to the boiler sheet, and sealing the structure steam-tight in the opening in the boiler sheet.

It will be observed that where the flange 14" joins the body ot the closure member, the metal is comparatively thin. This Will permit of the flange being cut ott with the use of a, chisel or other tool as indicated by dotted lines 2Gb, Figure 15, when it becomes necessary to withdraw the mounting to remove a broken bolt from the boiler.

ln the embodiment et the invention shown in Figure 12, the outer boiler sheet is provided with an opening, a portion of the wall of which is rounded to form a seat 5C and another portion of said wall may be straight as shown at 6, Si cap 7, the outer tace of which may lie Hush with the outer face of the boiler sheet 17 is provided with an inwardly projecting flange SC having a rounded exterior tace 9c to conform to the curvature of the seat in the boiler sheet so that said cap 7 may be universally movable within the opening in the boiler shee The cap 7 may be rounded or beveled exteriorly adjacent to the `flange Se and this portion of the cap may be thickened somewhat and provided interiorly with screw threads 10c. rlhe outer end portion o1 a bearing member 11 enters within the laneed portion oi' the cap and is threaded interiorly for the reception of a plug 120,-the inner end or which is separated from a shoulder 13c in the bearing member by a gasket 111C and the outer end of said plug extends beyond the outer end or the bearing member and is screwed to the threaded portion 10'3 in the cap 71. A gasket 15c may be interposed between the outer end 'of the bearing member 11d and the cap 7. The bearing member 11 is provided interiorly with a seat 16C for the head of the staybolt and the plug 12c is recessed to form a clearance space 1"C over the head of the staybolt.

By mounting the cap 7 Within the opening in the boiler sheet so that it may be univerally adjustable and supporting the bearing member by said cap through the medium ofthe plug 12C, the bearing member may be adjusted to insure proper alignment ot the staybolt with its points of connection with the respective boiler sheets. Between the rounded or beveled edge portion or' the cap 7 and the portion 6 et the wall of the open-- ing in the boiler sheet, a weld 18c is located and unites said cap to the boiler sheet.

Then the bearing member 11 is mounted in the boiler sheet so as to project beyond the outer face 01"' the latter, said boiler sheet may be provided with an opening 19c having a portion of its wall rounded as at 20c to receive the rounded portion 21C of said bearing member, as shown in Figure 15. The bearing member will then be united to the boiler sheet by a weld 22C and the cap 7 may be omitted-the plug 12c forming a closure for the bearing member.

1n the embodiment of the invention shown in Figures 16-18 the outer boiler sheet V1 is provided with an opening 5, an intermediate portion of the wall or" which is rounded to provide 'a seat 6 and the portion ot said wall near the outer face of the boiler sheet may be beveled aS at 7.

ing on the rounded portion 6 of the wall of 'p The under the opening in the boiler sheet. side or the ring 8 may be made with an annular groove 10 and said ring is provided with a tubular or cylindrical portion 11e which is externally screw-threaded. bearing member 12 having an interior threaded port-ion is screwed onto the tubular portion 11e of the ring and a gasket 13 may be interposed between the inner end of said tubular portion 11e and a shoulder 1d in the bearing member. The outer end ol' the bearing member may be rounded as at 15 and project into the groove 10 The bearing member is also rounded exteriorly as at 16(l for a purpose hereinafter explained. The ring is threaded interiorly near its outer end and receives a plug` closure 17 having an angular portion 18 to receive a wrench, and a gasket 19 may be disposed between said closure and a shoulder 20 in said ring.

lf'ilhen the structure is mounted as above described will be universally adjustable to insure proper alignment oil the staybolt with its points ot connection with respective boilersheets and when properly adjusted it will be united to the boiler sheet `by a weld 21 which occupies a groove formed by the beveled portion 7 ot the wall ot the opening in the boiler' sheet and a beveled edge portion Q2 ot the ring.

The bearing member 12 ma)Y be mounted in a boiler sheet 1 as shown in Figure 1i' and a. cap or plug

closure

9,3 substituted for the ring S and closure 171.

ln the construction shown in Figure 18 the outer end of the bearing member 11e may be flat and this end portion ot the bearing member ldisposed between the wall of the opening in the boiler' sheet and the cylindrical portion 11e of ring Se and'scroived to the same. Y Y' Having fully described my invention what l claim as new and desire to secure by Let ters-Patent, is Y 1. A mounting i'or a sta,flvoli comprising;r a closure member and a bearing member re: movably connected with the closure member; said bearing member havingV a seat for the head ot n, staybolt and said closure member having a transversely curved'exterior portion to seat on the wall of an opening in a boiler sheet.

2. A mounting' for a staybolt, comprising a closure member and a bearing member having threaded connection therewith, said members having rounded exterior portions, and said bearing member having afseat for the head of a staybolt.

3. A mounting for a staybolt, comprising a. hollow closure having an approximately elliptical cross section7 and a bearing member havingthreaded connection with said closure member, said bearing member having a seat for the head of a s taybolt, and both ot said members having exterior rounded portions.

4. In a st-aybolt Structure, the e mbination with a boiler Asheet having an opening, of a bearing structure mounted in said opening, said bearing structure Comprising a closure member and a bearing,` member having threaded connection with said closure member, each of' said members having an external configuration whereby the same may be mounted in the ogening in the boiler sheet, and a. Staybolt having a head mounted in said bearing` member.

5. In a staybolt Structure, the combination with a boiler sheet having an opening, ot a bearing structure comprising a Closure member having an initially universally adjustable mounting on the Wall of Said opening and a bearing member havingthreaded conneotion with said closure member and having a seat for a bolt head, a staybolt having a head mounted in said bearing member, and a Weld uniting said closure member to the boiler sheet.

6. In a staybolt structure, the combination with a boiler sheet having an opening, a portion of the Wall ot which forms a seat near the inner tace ot the boiler sheet, ot a bearing structure comprising a closure member located in said opening with ite outer tremity substantially iueh with the outer tace ot the sheet and having a rounded peripheral nortion mounted on the seat formed by the Wall ot the opening in the boiler sheet, and a bearing member having threaded conneetion with said closure member, and a Weld located in the opening in the boiler sheet and uniting said closure member to the boiler sheet.

7. A mounting for a st-aybolt, comprising a bearingmember and a closure member removably connected together, each t said members having' a. rounded exterior port-ion tor initial mounting in an opening in a boiler sheet.

8. ln a staybolt Structure, the combination with a boiler sheet having an opening, ot a mounting tor a staybolt comprising a bearing member and a closure member removably connected tegether, each ot said members having an exterior rounded portion for initial universally movable mounting` in the boiler sheet, a staybolt having a head mounted in said bearing member and a. Weld uniting said mounting to the boiler sheet.

9. A mounting for a Staybolt, Comprising bearing member having an enteriorly rounded portion and interior seat tor the head of a sta bolt, said bearing` member having an interior threaded portion, and a closure comprising a cap havinga rounded peripheral'portion and a threaded plug entering` the threaded por ion ot the bearing` member and having threaded connection with the cap Within the latter.

l0. In a staybolt structure, the combination with a boiler sheet having an opening, ot a cap havingan initially universally movable mounting` in said opening, a bearing member entering said cap and threaded interiorly, a plug threaded into said bearing member and into said cap, a staybolt having a head mounted in said bearing member, and a weld uniting Said cap to the boiler sheet.

in testimony whereof, I have signed this specification.

ETHAN I. DODDS,