US688857A - Method of regulating weight of metal blanks. - Google Patents
Method of regulating weight of metal blanks. Download PDFInfo
- Publication number
- US688857A US688857A US4475601A US1901044756A US688857A US 688857 A US688857 A US 688857A US 4475601 A US4475601 A US 4475601A US 1901044756 A US1901044756 A US 1901044756A US 688857 A US688857 A US 688857A
- Authority
- US
- United States
- Prior art keywords
- blanks
- planchets
- weight
- racks
- same
- 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
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
Definitions
- My invention relates to an improvement in; the method of regulatingthe .weightof coin-f blanks and planchets used in coinage, and;
- Fignre 1 is a plan view of an ordinary glass jar used in 320' electroplating, showing two racks suspended :from rods holding oin-blanks.
- FigxZ is a side elevation ofsame, partlyiinflsection and .Fig. 3, an end viewin elevation, also partly in section.
- A represents an ordinary construcl tion of jar used in electroplating
- B B rods lhaving holes 17 1) near one end for the recep- 1 tion of wires connected with an ordinary batitery or rheostat, (not shown,) the wires beiing held in,,place by the thumb-screws Z2 1).
- E represents the solution used in ess hereinafter described.
- the racksO O are made, preferably, of the same metal and of equal fineness as the blanks or planchets to be treated, though the racks may be made of a non-metallic and nonconducting material, if desired.
- the blanks or planchets that are found to be heavy are separated from those that are below the required weight and are each placed in racks made either of the same metal as the blanks and planchets or of a non-metallic substance, as vulcanized rubber, glass, the, and are immersed in a solution or bath such as is ordinarily used in electroplating and containing the metals in solution in the same relative proportion as the metals composing the blanks or planchets.
- the racks are then attached by means of wires to an electric battery or to a rheostat, which in turn is connected With the sheet wires or a dynamo, the positive pole being attached to the rack containing the heavy-weight coin-blanks or planchets, While the negative pole is attached to the rack containing the light-Weight coin-blanks or planchets, said rheostat being of any ordinary construction, my invention not involving a particular construction of such parts.
- the wires are attached by suitable means to the racks; if of a non-metallic and preferably nonconducting material, wires of the same metal as the blanks or planchets are arranged in the racks so that each blank to be treated contacts with the wire and has electric connection with the battery or rheostat hereinbet'ore described.
- I use the ordinary process of electroplating to perform the double function of increasing and diminishing the weight of coin-blanks or planchets, treating the lights and heavies at the same time and bringing both to their proper weight simultaneously, or I may perform my method upon lights or heavies separately by using a plate of the same metal as an anode for the lights or as a cathode for the heaviesas, for instance, when there isbut one class of blanks (lights or heavies) to be treated.
Description
Patented Dec. I7, I90].
' W. JOHNSON.
METHOD 0F BEGULATING WEIGHT 0F METAL BLANKS.
(Application filed Jan. 25. 1901') {No Model.)
UNITED STATES 'nrnnr Orrrcnt 'WAItREN JOHNSON, OF NEW ORLEANS, LOUISIANA.
'lVlETHO-B F REGULATING WEIGHT OF METAL BLANKS.
- SPEGIFIGATIONfonming part of Letters Eatent No. 688,857, dated December 17, 1901. Application filedjJanuary 25, 1901. Serial No. 44,756. (No model.)
i and I do hereby declare that the following is a full and clear explanation of .the method we employed loy me.
My invention relates to an improvement in; the method of regulatingthe .weightof coin-f blanks and planchets used in coinage, and;
has for its object to produce a more perfect blank andgreatly reduce the expense in its .productiomas is hereinafter more fully set 1011b and described.
Referring to the .drawings, Fignre 1 is a plan view of an ordinary glass jar used in 320' electroplating, showing two racks suspended :from rods holding oin-blanks. ,FigxZ is a side elevation ofsame, partlyiinflsection and .Fig. 3, an end viewin elevation, also partly in section.
Referring -to the drawings,.in which like letters of referencedenote like parts in all i the vieWs, A represents an ordinary construcl tion of jar used in electroplating, andB B rods lhaving holes 17 1) near one end for the recep- 1 tion of wires connected with an ordinary batitery or rheostat, (not shown,) the wires beiing held in,,place by the thumb-screws Z2 1).
: Suspended onthese rods are racks (3 O, haviing slots co to receive the blanks D to be op- 5' era-ted on.
E represents the solution used in ess hereinafter described.
The racksO O are made, preferably, of the same metal and of equal fineness as the blanks or planchets to be treated, though the racks may be made of a non-metallic and nonconducting material, if desired.
In the United States mints the metal that is to be coined is rolled out in strips to the thickness desired and is then taken to a punching-machine,\where circular pieces are cut out of these strips, which are called blanks. These blanks are required to be of a certain weight, and the practice has been that if the blank weighs too much suificient metal is shaved or filed off the blank 'to reduce it to the required weight, which method results in the procunsatisfactory and very expensive, and my methodis intended to avoid it and produce a .more perfect and less expensive coin.
,In practicing my method the blanks or planchets that are found to be heavy are separated from those that are below the required weight and are each placed in racks made either of the same metal as the blanks and planchets or of a non-metallic substance, as vulcanized rubber, glass, the, and are immersed in a solution or bath such as is ordinarily used in electroplating and containing the metals in solution in the same relative proportion as the metals composing the blanks or planchets. The racks are then attached by means of wires to an electric battery or to a rheostat, which in turn is connected With the sheet wires or a dynamo, the positive pole being attached to the rack containing the heavy-weight coin-blanks or planchets, While the negative pole is attached to the rack containing the light-Weight coin-blanks or planchets, said rheostat being of any ordinary construction, my invention not involving a particular construction of such parts. If the racks are made of metal, as above described, the wires are attached by suitable means to the racks; if of a non-metallic and preferably nonconducting material, wires of the same metal as the blanks or planchets are arranged in the racks so that each blank to be treated contacts with the wire and has electric connection with the battery or rheostat hereinbet'ore described. As soon as connection is made with the battery it will be readily seen that the coins connected with the positive pole of the battery become anodes, while those at the negative become cathodes and the operation of decreasing and increasing the weights of the blanks or planchets takes place, the cathodes being plated with the metal, while the anodes supply the solution above described with sufficient metal to keep it in its normal state. In other words, I use the ordinary process of electroplating to perform the double function of increasing and diminishing the weight of coin-blanks or planchets, treating the lights and heavies at the same time and bringing both to their proper weight simultaneously, or I may perform my method upon lights or heavies separately by using a plate of the same metal as an anode for the lights or as a cathode for the heaviesas, for instance, when there isbut one class of blanks (lights or heavies) to be treated. As soon as the blanks or planchets are brought to the required weight, which is determined by the length of time the pieces have been in the bath or by cutting off the electricity, removing a piece from the rack, and weighing it, they are removed from the bath and others requiring treatment substituted therefor.
In practice with my invention I ordinarily select blanks of the same relative degree of over and under weight to be treated at one time and use the same number of blanks for anodes and cathodes at the same operation. In event racks made of the same material as the blanks or planchets are used by alternately using the same rack as anode and cathode the dissolution of and deposition upon the racks are equalized, and they are kept near their normal weight and destruction prevented.
Having thus described my invention, what I claim is 1. The method of regulating the weights of coin-blanks or planchets of a metallic alloy by inserting the heavy and light weight blanks in separate racks made of the same material and the same fineness as the blanks or planchets to be treated, immersing same in a solution of the same metals as those of the alloy comprising said blanks or planchets, and connecting the racks containing the heavyweight blanks to the positive pole of an electric battery and the racks containing the lightweight blanks to the negative pole of the battery, substantially as described.
2. The method of decreasing the weight of coin-blanks or planchets of a metallic alloy by inserting them in a rack, suspending them in a solution of the same metals as those of the alloy comprising said blanks or planchets, suspending a bar of metal in the same solution, and connecting the rack to the positive pole of an electric battery and the bar to the negative pole of the battery, substantially as described.
In testimony whereof I hereto aflix my sig* nature in the presence of two witnesses.
WARREN JOHNSON.
Witnesses:
D. A. GoURIoK, S. F. RANDOLPH, J r.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4475601A US688857A (en) | 1901-01-25 | 1901-01-25 | Method of regulating weight of metal blanks. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4475601A US688857A (en) | 1901-01-25 | 1901-01-25 | Method of regulating weight of metal blanks. |
Publications (1)
Publication Number | Publication Date |
---|---|
US688857A true US688857A (en) | 1901-12-17 |
Family
ID=2757399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US4475601A Expired - Lifetime US688857A (en) | 1901-01-25 | 1901-01-25 | Method of regulating weight of metal blanks. |
Country Status (1)
Country | Link |
---|---|
US (1) | US688857A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4089753A (en) * | 1974-09-16 | 1978-05-16 | Sherritt Gordon Mines Limited | Process for the production of nickel clad steel coinage blank |
US7111358B1 (en) | 2005-01-11 | 2006-09-26 | Bommer Industries, Inc. | Tensioned pivot assembly |
-
1901
- 1901-01-25 US US4475601A patent/US688857A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4089753A (en) * | 1974-09-16 | 1978-05-16 | Sherritt Gordon Mines Limited | Process for the production of nickel clad steel coinage blank |
US7111358B1 (en) | 2005-01-11 | 2006-09-26 | Bommer Industries, Inc. | Tensioned pivot assembly |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE151474T1 (en) | ELECTROPLATED COPPER FOIL AND PRODUCTION THEREOF USING ELECTROLYTIC SOLUTIONS WITH LOW CONCENTRATIONS OF CHLORINE IONS | |
EP0110463A1 (en) | A process of electroforming a metal product and electroformed metal product | |
US5492609A (en) | Cathode for electrolytic refining of copper | |
US688857A (en) | Method of regulating weight of metal blanks. | |
US3298945A (en) | Electrolytic cell including a starting cathode having an integral supporting means | |
US3176850A (en) | Anodizing rack and method of making same | |
US4439284A (en) | Composition control of electrodeposited nickel-cobalt alloys | |
US2999802A (en) | Anodizing racks | |
US3779872A (en) | Cathode sheet for electrodeposition and method of recovering electrodeposited metals | |
US2946734A (en) | Contact element for electrolytic processing of wire and the like | |
ATE45597T1 (en) | PROCESS FOR THE ELECTROLYTIC PRODUCTION OF RARE EARTH OR THEIR ALLOYS AND DEVICE FOR CARRYING OUT THIS PROCESS. | |
US3475143A (en) | Metal to metal bonds with cuprous halide melts | |
US1511967A (en) | Treatment of tin-plate scrap | |
US3506550A (en) | Electrolytic process of recovering nickel and cadmium from spent battery plates | |
US3374154A (en) | Electroforming and electrodeposition of stress-free nickel from the sulfamate bath | |
US1963363A (en) | Plating fixture | |
CA2235408A1 (en) | Electroplating processes compositions and deposits | |
US740359A (en) | Method of electrodepositing metals. | |
US3715286A (en) | Electrorefined nickel of controlled size | |
US485618A (en) | Apparatus for and process of refining copper by electricity | |
JP2622560B2 (en) | Manufacturing method of electrodeposited plate | |
US942729A (en) | Electrolyte and method of electrodepositing nickel. | |
US645785A (en) | Holder for electroplating. | |
US467350A (en) | Electrolytical plant | |
US2372296A (en) | Plating fixture |