USRE2916E - Improved cement for fixing door-knobs - Google Patents
Improved cement for fixing door-knobs Download PDFInfo
- Publication number
- USRE2916E USRE2916E US RE2916 E USRE2916 E US RE2916E
- Authority
- US
- United States
- Prior art keywords
- knobs
- cement
- improved cement
- fixing door
- copperas
- Prior art date
Links
- 239000004568 cement Substances 0.000 title description 18
- 229940037003 alum Drugs 0.000 description 12
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 12
- 210000001699 lower leg Anatomy 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000004576 sand Substances 0.000 description 8
- 238000009835 boiling Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
Definitions
- This invention relates to a new composition for making a cement, which is to be particularly adapted for securing door or furniture knob tops to the metal shanks, but which may also be used for other purposes.
- the cement is composed of the following ingredients, in about the proportions set forth, and compounded in the manner hereinafter described: Two parts of alum, (sulphate of alumina,) one part of copperas, (sulphurate of iron,) and one part of white or other sand are mixed in about four (4.) or less parts of water, and are boiled until the alum is dissolved. The mixture is boiled down so as to evaporate the water until the compound has about the consistency of gruel. It is then ready for use,
- the aluminaand astringent properties of the alum bind the particles of the sand and unite the same, so that they will adhere, while the copperas prevents the cement from becomin g brittle, and adds to its substance.
- the cement will not be as good if the copperas is omitted, but will still be very useful for many purposes; and my invention consists in the combination of alum with sandalone. Instead of the sand, any other silicious substance may be employed. If the copperas is omitted, the quantity of alum may be increased so as to form the equivalent of the copperas.
Description
convenient to handle.
UNITED STATES PATENT OFFICE.
PATRICK KENNEDY, OF NEW YORK, N. Y.
IMPROVED CEMENT FOR FIXING DOOR-KNOBS.
- Specification forming part of Letters Patent No. 65,680, dated June 11, 1867; Reissue No. 2,916, dated April 14, 1868.
To all whom it may concern:
Be it known that I, PATRICK KENNEDY, of the city, county, and State of New York, have invented a new and Improved Cement; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same.
This invention relates to a new composition for making a cement, which is to be particularly adapted for securing door or furniture knob tops to the metal shanks, but which may also be used for other purposes.
Heretofore door or furniture knob tops were always fastened to their shanks by means of lead, which is very expensive and not very By the use of my improved cement the attachment of the knobs to the shanks will be materially facilitated and. considerably less expensive.
The cement is composed of the following ingredients, in about the proportions set forth, and compounded in the manner hereinafter described: Two parts of alum, (sulphate of alumina,) one part of copperas, (sulphurate of iron,) and one part of white or other sand are mixed in about four (4.) or less parts of water, and are boiled until the alum is dissolved. The mixture is boiled down so as to evaporate the water until the compound has about the consistency of gruel. It is then ready for use,
and will, after having been applied, harden, so as to be harder and less porous than marble. The aluminaand astringent properties of the alum bind the particles of the sand and unite the same, so that they will adhere, while the copperas prevents the cement from becomin g brittle, and adds to its substance.
The cement will not be as good if the copperas is omitted, but will still be very useful for many purposes; and my invention consists in the combination of alum with sandalone. Instead of the sand, any other silicious substance may be employed. If the copperas is omitted, the quantity of alum may be increased so as to form the equivalent of the copperas.
I do not claim this cement as a new composition; but
I do claim as new and desire to secure by Letters Patent- The application of a cement which is composed of sand and alum, with or without the addition of copperas, for fastening door or furniture knob tops to their metal or other shanks, as set forth.
The above specification of my invention signed by me this 6th day of January, 1868.
PATRICK KENNEDY.
Witnesses vWM. F. 1VIONAMARA, ALEX. F. RonERTs.
Family
ID=
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