US238806A - Samuel a - Google Patents
Samuel a Download PDFInfo
- Publication number
- US238806A US238806A US238806DA US238806A US 238806 A US238806 A US 238806A US 238806D A US238806D A US 238806DA US 238806 A US238806 A US 238806A
- Authority
- US
- United States
- Prior art keywords
- crucible
- coating
- samuel
- plumbago
- turpentine
- 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
- 239000011248 coating agent Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- 241000209456 Plumbago Species 0.000 description 8
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 8
- 239000010439 graphite Substances 0.000 description 8
- 241000779819 Syncarpia glomulifera Species 0.000 description 6
- 229940036248 Turpentine Drugs 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000001739 pinus spp. Substances 0.000 description 6
- 239000002966 varnish Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 4
- 239000011928 denatured alcohol Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 229920000591 gum Polymers 0.000 description 4
- 108060003490 HAT1 Proteins 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 230000000717 retained Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
Definitions
- This invention relates to improvements on an invention for which Letters Patent were granted to me dated the 8th day of July, 1879, No. 217,295, the object of the present improvements being to simplify the method or process by which the crucible of other vessel in plumbago is rendered damp-proof.
- the crucible may, before baking, be coated or covered with a suitable compoumL-such as is described in the specification of my said former Letters Patent; but such preliminary coating may generally be omitted.
- a suitable compoumL- such as is described in the specification of my said former Letters Patent; but such preliminary coating may generally be omitted.
- I proceed as follows: Directly the crucible is drawn from the kiln-that is to say, whileitis still warm, (the temperature being so low as to obviate the risk of combustion of the coating hereinafter mentioned)-l either dip it in or coat it with a compound or varnish, such as the following, consisting of about one part of pitch, three parts of rosin or analogous gum, and four parts of turpentine.
- the coating is not applied directly the crucible is drawn from the kiln, or, in other words, if the crucible shall have been allowed to absorb moisture before applying the coating, it will be necessary to thoroughly reheat the crucible to a temperature above 212 Fahrenheit previous to treating it by the process hereinbefore described, so as to drive off all the absorbed moisture.
Description
UNITED STATES PATENT OFFICE.
SAMUEL A. PETO, OF LONDON, ENGLAND.
MANUFACTURE OF PLUMBAGO CRUCIBLES, 80C.
SPECIFICATION forming part of Letters Patent No. 238,806, dated March 15, 1881.
Application filed October 25, 1880.
T 0 all whom it may concern Be it known that I, SAMUEL ARTHUR Firm, of London, England, have invented new and useful Improvements in the Manufacture of Plumbago C-rucibles and otherVesselsin Plumbago suitable for chemical and metallurgical purposes, (for which I have obtained a patent in Great Britain, No. 1,672, bearing date April 23, 1880, and sealed July 9, 1880,) of which the following is a specification.
This invention relates to improvements on an invention for which Letters Patent were granted to me dated the 8th day of July, 1879, No. 217,295, the object of the present improvements being to simplify the method or process by which the crucible of other vessel in plumbago is rendered damp-proof.
in carrying out my present improvements the crucible may, before baking, be coated or covered with a suitable compoumL-such as is described in the specification of my said former Letters Patent; but such preliminary coating may generally be omitted. In either case I proceed as follows: Directly the crucible is drawn from the kiln-that is to say, whileitis still warm, (the temperature being so low as to obviate the risk of combustion of the coating hereinafter mentioned)-l either dip it in or coat it with a compound or varnish, such as the following, consisting of about one part of pitch, three parts of rosin or analogous gum, and four parts of turpentine.
It will be understood that the compound is employed while in a liquid or heated state, and that in somecascs the pitch may be omitted.
In practice I have found that it is expedient to apply a second coating of the hereinbet'oredescribed varnish or of one in which live parts (No specimens.) Patented in England April 23, 1880.
of methylated spirit are substituted for the turpentine. Varnishes of an analogous character, when properly prepared, may be employed.
If, from the small size of the crucible, it should be found that the retained heat is not sufficient to thoroughly dry the hereinbefore-described coating, it will be necessary to again warm the crucible to complete the process.
Then the coating is not applied directly the crucible is drawn from the kiln, or, in other words, if the crucible shall have been allowed to absorb moisture before applying the coating, it will be necessary to thoroughly reheat the crucible to a temperature above 212 Fahrenheit previous to treating it by the process hereinbefore described, so as to drive off all the absorbed moisture.
Having thus described my said invention and the best means with which I am acquainted for carrying the same into effect, I wish it to be understood that I do not confine myself to the precise details herein laid down, as the same may be varied without departing from the principle of my invention; but
hat 1 do claim is- The method herein described of rendering plnmbago crucibles and other vessels of plumbago damp-proof and non-porous, consisting in giving the same, when hot, one or more coatin gs of pitch, rosin or analogous gum, and turpentine or methylated spirit, or of an analogue, as described.
S. ARTHUR PETO.
\Vitnesses G. F. REDFERN, A. ALBU'IT.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US238806A true US238806A (en) | 1881-03-15 |
Family
ID=2308157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US238806D Expired - Lifetime US238806A (en) | Samuel a |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US238806A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5019426A (en) * | 1987-06-16 | 1991-05-28 | Union Carbide Corporation | Topical treatment for sealing carbon and graphite surfaces |
-
0
- US US238806D patent/US238806A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5019426A (en) * | 1987-06-16 | 1991-05-28 | Union Carbide Corporation | Topical treatment for sealing carbon and graphite surfaces |
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