US36414A - Improvement in the preparation of white oxide of zinc for use in paints - Google Patents
Improvement in the preparation of white oxide of zinc for use in paints Download PDFInfo
- Publication number
- US36414A US36414A US36414DA US36414A US 36414 A US36414 A US 36414A US 36414D A US36414D A US 36414DA US 36414 A US36414 A US 36414A
- Authority
- US
- United States
- Prior art keywords
- zinc
- preparation
- improvement
- paints
- white oxide
- 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
- 239000003973 paint Substances 0.000 title description 16
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title description 12
- 239000011701 zinc Substances 0.000 title description 12
- 229910052725 zinc Inorganic materials 0.000 title description 12
- 238000002360 preparation method Methods 0.000 title description 10
- 238000004519 manufacturing process Methods 0.000 description 4
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
Definitions
- Zinc-whi e paint is ordinarily manufactured- H byIgrinding the white oxideof zinc in oil without any previous preparation beyond levigation, and its want of what is termed by paintters body has been much complained of.
- the object of my invention is to enable the white oxide of zinc to be manufactured into paint having a desirable degree of body
- my invention consists in subject, ing it in its dry state to the combined actions of friction and pressure, by which means its bulk is greatly reduced and itis enabled to be ground with a much smaller quantity of oil.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Paints Or Removers (AREA)
- Lubricants (AREA)
Description
UNITED STATES PATENT OFFICE. I
one. 1!. Lew s, or PHILADELPHIA, PENNSYLVANlAm IMPROVEMENT IN THE PREPARATION OF WHITE OXIDE 0F ZINC FOR USE IN PAINTS.
Specification forming part of Letters Patent No. 36,4 14, dated September 9, 1862.
To all whom it may concern: I
Be it known that I, GEORGE T. LEWIS, of
the city of Philadelphia, in the countyof Philadelphia and State of' Pennsylvania, have invented a new and useful Improvement in the Preparation of White Oxide of Zinc for the Manufacture of Paint; and I-do hereby declare that the following is. a full, clear, and
--exact description of thesame.
Zinc-whi e paint is ordinarily manufactured- H byIgrinding the white oxideof zinc in oil without any previous preparation beyond levigation, and its want of what is termed by paintters body has been much complained of.
The object of my invention is to enable the white oxide of zinc to be manufactured into paint having a desirable degree of body; and
to this end my invention consists in subject, ing it in its dry state to the combined actions of friction and pressure, by which means its bulk is greatly reduced and itis enabled to be ground with a much smaller quantity of oil.
oil. With a pair of chasers of fifty-one inches diameter and fourteen inches wide, making fourteen revolutions per minute, I have operated successfully upoutwo hundred pounds at once, continuing the operation for thirty minutes, in which time I have reduced it nearly to onehalf'its original bulk, a barrel which held one hundred and seventy-five pounds in the original uncondensed state holding three I hundred and forty-five pounds of that which had been condensed. Theoxide in-it's original uncondensed state required for grinding two and one-half gallons of oil for every one'hun'- "tired-pounds; but when condensed it only required' for grinding one and three-fourths gallon. Bysubjecting the oxide to the operation of the chaser-s for a greater length of time it maybe more highly condensed and ground with a less quantity of" oil, and increased body will be thus given to the paint.
I do not claim broadly the application of pressure as shown in Tittertons English patent of November 4', 1856 but What I claim'as my invention,and desire to secnreby Letter Patents, i's--.
The preparation of white oxide of zinc for the manufacture of paint by subjecting it; to thecombined actions of friction and press- ,ure, substantially as herein described, whereby its density is increased and the paint caused 'to have greater body.
GEORGE 'r. LEWIS.
Witnesses:
"JAs. MILLIGAN, J12,
:J 01m '1. LEWIS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US36414A true US36414A (en) | 1862-09-09 |
Family
ID=2105991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US36414D Expired - Lifetime US36414A (en) | Improvement in the preparation of white oxide of zinc for use in paints |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US36414A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995034251A1 (en) | 1994-06-16 | 1995-12-21 | Smith & Nephew Richards, Inc. | Biocompatible low modulus dental devices |
-
0
- US US36414D patent/US36414A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995034251A1 (en) | 1994-06-16 | 1995-12-21 | Smith & Nephew Richards, Inc. | Biocompatible low modulus dental devices |
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