US161168A - Improvement in boiler-coverings - Google Patents
Improvement in boiler-coverings Download PDFInfo
- Publication number
- US161168A US161168A US161168DA US161168A US 161168 A US161168 A US 161168A US 161168D A US161168D A US 161168DA US 161168 A US161168 A US 161168A
- Authority
- US
- United States
- Prior art keywords
- boiler
- covering
- sections
- coverings
- improvement
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000004568 cement Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 210000001503 Joints Anatomy 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 102100016838 AXIN2 Human genes 0.000 description 2
- 101700047552 AXIN2 Proteins 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 241001417935 Platycephalidae Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002260 anti-inflammatory agent Substances 0.000 description 2
- 230000001741 anti-phlogistic Effects 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
Images
Classifications
-
- 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
- F16L59/00—Thermal insulation in general
- F16L59/12—Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating material; Arrangements specially adapted for supporting insulated bodies
Definitions
- Sheet metal has been used for boiler-covers at various times; but in latter years has been superseded almost entirely by hair felt, or the various so-called non-conducting cements. This has been in consequence of the metal jackets not having been made sufficiently tight to insure a space of dead air between the jacket and boiler, to check radiation of heat, and at the same time admit of convenient removal in whole or in part, when necessary to examine or repair the boiler My invention, as described below, overcomes these difficulties, While it makes a most effective non'conductin g jacket. I construct such a covering in sections, with peculiar provisions for fitting and confining them.
- Figure 1 represents the upper part of a marine boiler, usually designated the steam-chimney, with my invention applied, the right-l1 and side being in section, and the left-hand side in elevation.
- Fig. 2 is a horizontal section and plan view of the same.
- A represents the upright cylindrical portion of the boiler-shell, and A the annular flat part or head.
- B B represent the main cylindrica-l portions of the covering, formed in sections, with the edges flanged outward, as indicated by B. They are secured together by screw-bolts and nuts, marked 1).
- D D are struts of thin sheet metal, preferably hard iron or steel, secured to the sections B by rivets d, and bent in the form represented, so as to lie against the boiler-shell A, and
- the st uts D are elastic, and yield to any irregularities, as also to any expansion or contraction due to the changes of temperature or the like.
- the covering may be correspondingly applied on the flat heads of boilers, if preferred.
- I have represented the end covering on top of steam-chimney as applied directly to the boiler, only smearing the boiler or covering plate, or both, with red lead, or other suitable cement, to make a tight joint.
- the upper ends of the several sections B are formed with flanges corresponding to the flanges B, and are secured to the plate M by screw-bolts and nuts. Felt is also used to make the joint tight between these parts.
- My covering can be easily taken apart, and, by taking care to mark the several sections, so that they can be applied again in the same relation as before, it is very easy to remove them from the whole or any portion of the boiler, to make any necessary calking or repairs, and replace the covering again with perfection.
- the sections may be of convenient size, and form an air-tight covering.
- I can use woven fabrics of any incombustible material, or variously matted fibers of ashestus, paper, or analogous material made incombustible by saturating with suitable antiphlogistic liquids. I propose in some cases to use wood saturated with silicate of soda, or analogous preparation.
- any of the strong plastic compounds known as cements or putties may be used with some success. Anything which will present a yielding surface to compensate for irregularities or imperfections in the workmanship may serve; but I greatly prefer wool-felt, as it fulfills a greater number of important conditions.
- the preferable material in most cases for the supports or struts D is galvanized sheetiron. Galvanized iron about N o. 20, Birmingham gage, will serve well for the jacket B, connecting-flanges B, and struts D. I have g in my experiments used for the fastenings cast brass nuts and screw-bolts, the latter made from rods about one-quarter of an inch in diameter. Such do not corrode, and may be removed and applied again at will.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
ERASTUS w. SMITH,
PATENT OF NEW YORK, N. Y.
IMPROVEMENT YIN YBOILER-COVERINGS.
Specification forming part of Letters Patent No. 161,168, dated March 23, 1875; application filed.
' July 6, 1874. g v
Sheet metal has been used for boiler-covers at various times; but in latter years has been superseded almost entirely by hair felt, or the various so-called non-conducting cements. This has been in consequence of the metal jackets not having been made sufficiently tight to insure a space of dead air between the jacket and boiler, to check radiation of heat, and at the same time admit of convenient removal in whole or in part, when necessary to examine or repair the boiler My invention, as described below, overcomes these difficulties, While it makes a most effective non'conductin g jacket. I construct such a covering in sections, with peculiar provisions for fitting and confining them.
The following is a description of what 1 consider the best means of carrying out the invention.
The accompanying drawings form a part of this specification. I
Figure 1 represents the upper part of a marine boiler, usually designated the steam-chimney, with my invention applied, the right-l1 and side being in section, and the left-hand side in elevation. Fig. 2 is a horizontal section and plan view of the same.
Similar letters of reference indicate like parts in both the figures.
A represents the upright cylindrical portion of the boiler-shell, and A the annular flat part or head. B B represent the main cylindrica-l portions of the covering, formed in sections, with the edges flanged outward, as indicated by B. They are secured together by screw-bolts and nuts, marked 1). In each joint, between the faces of the flanges B B, is inserted a layer of wool-felt, marked 0. This gives a slight elasticity to the joint, allows for slight imperfections in the workmanship, and makes it tight under all conditions. D D are struts of thin sheet metal, preferably hard iron or steel, secured to the sections B by rivets d, and bent in the form represented, so as to lie against the boiler-shell A, and
hold the sections off therefrom. The st uts D are elastic, and yield to any irregularities, as also to any expansion or contraction due to the changes of temperature or the like.
The covering may be correspondingly applied on the flat heads of boilers, if preferred. I have represented the end covering on top of steam-chimney as applied directly to the boiler, only smearing the boiler or covering plate, or both, with red lead, or other suitable cement, to make a tight joint. Itap screwstuds P into the head A, upon which the covering-plate M is applied, and secured by nuts Q. The upper ends of the several sections B are formed with flanges corresponding to the flanges B, and are secured to the plate M by screw-bolts and nuts. Felt is also used to make the joint tight between these parts.
My covering can be easily taken apart, and, by taking care to mark the several sections, so that they can be applied again in the same relation as before, it is very easy to remove them from the whole or any portion of the boiler, to make any necessary calking or repairs, and replace the covering again with perfection. The sections may be of convenient size, and form an air-tight covering.
Instead of felt as a packing for the joints, I can use woven fabrics of any incombustible material, or variously matted fibers of ashestus, paper, or analogous material made incombustible by saturating with suitable antiphlogistic liquids. I propose in some cases to use wood saturated with silicate of soda, or analogous preparation.
Any of the strong plastic compounds known as cements or putties may be used with some success. Anything which will present a yielding surface to compensate for irregularities or imperfections in the workmanship may serve; but I greatly prefer wool-felt, as it fulfills a greater number of important conditions.
I esteem it highly desirable that the joints shall not be so strongly cemented together as to prevent their being readily taken apart when required.
The preferable material in most cases for the supports or struts D is galvanized sheetiron. Galvanized iron about N o. 20, Birmingham gage, will serve well for the jacket B, connecting-flanges B, and struts D. I have g in my experiments used for the fastenings cast brass nuts and screw-bolts, the latter made from rods about one-quarter of an inch in diameter. Such do not corrode, and may be removed and applied again at will.
I claim as my invention in boiler-covering 1. The flanged sections of sheet metal B B and fastenin gs I), through said flanges, in combination with the soft packing O and strut D, for holding the sections B B at a uniform distance from a boiler, A, as shown and specifled. r
2. The elastic struts D, in combination with the metallic covering-sheets B, formed in sections, and adapted to be secured together by fastenin gs 11 upon the boiler A, as herein speci- I11 testimony whereof I have hereunto set my hand this 6th day of July, 1874:, in the presence of two subscribing witnesses.
ERASTUS W. SMITH.
Witnesses:
WM. 0. DEY, M. A. VAN N AMEE.
Publications (1)
Publication Number | Publication Date |
---|---|
US161168A true US161168A (en) | 1875-03-23 |
Family
ID=2230577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US161168D Expired - Lifetime US161168A (en) | Improvement in boiler-coverings |
Country Status (1)
Country | Link |
---|---|
US (1) | US161168A (en) |
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0
- US US161168D patent/US161168A/en not_active Expired - Lifetime
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