US881554A - Production of electrotypes. - Google Patents
Production of electrotypes. Download PDFInfo
- Publication number
- US881554A US881554A US35929807A US1907359298A US881554A US 881554 A US881554 A US 881554A US 35929807 A US35929807 A US 35929807A US 1907359298 A US1907359298 A US 1907359298A US 881554 A US881554 A US 881554A
- Authority
- US
- United States
- Prior art keywords
- lead
- production
- electrotypes
- sheet
- backing
- 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
- 238000004519 manufacturing process Methods 0.000 title description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000733322 Platea Species 0.000 description 1
- 240000003936 Plumbago auriculata Species 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O([C@H]1[C@@H]([C@H]([C@H]2C[C@@H]3C4=C(C5=CC=C(OC)C=C5N4)CCN3C[C@H]2C1)C(=O)OC)OC)C(=O)C1=CC(OC)=C(OC)C(OC)=C1 QEVHRUUCFGRFIF-MDEJGZGSSA-N 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
- B41B11/00—Details of, or accessories for, machines for mechanical composition using matrices for individual characters which are selected and assembled for type casting or moulding
- B41B11/02—Matrices
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2321/00—Characterised by the use of unspecified rubbers
Definitions
- auxiliary means for accelerating the first covermg of the mold, such for example as brushlng the surface over with finely iron which becomes coated with copper when lmmersed in a suitable copper solution.
- moldsor matrices by impressing the original block Into soft metal, such as lead, this being effected by pressing a lead sheet on to the block from which the" impression is to be made through the medium of a grooved iron plate,
- my invention has. for its object to improve the existing processes-and; to this .end I make use of a lead sheet with the soft or elast1c backing as above'described and I place upon the said soft or elastic backing a 1 whole. being l ilelld second piece of lead,the together by means of lead rivets. block or surface tobe reproduced and the ing an im ression by the block to prepared leadare then subjected to considernicety and such that it cannot be distinguished from the original.
- Any suitable depositing apparatus may be employed such, for example, as those described in the specifications of my former English patents Nos. 13012/04, 15762/06 and 4668/05.
- Figure 1 is a perspective view of a lead plate prepared in accordance with the'lnvention.
- -F1g. 2 is a similar view to Fig). 1 showe reproduced an also showing the second backing, extended beyond the edges of the elastic backing.
- .a is the lead sheet or pressed by the block to late which is ime reproduced, for
- a matrix comifising a sheet of lead g of elastic material
Landscapes
- Peptides Or Proteins (AREA)
Description
. PATENTED MAR. 10 1908. s. -0'. GOWPER-GOLES. PRODUCTION OF ELEGTROTYPES.
A1 PLIOATION TILED FEB. 25, 1907.
Ira/claim? ,S/QMQMK QMM'W,
WZZILeS-Sf. 916%. a [9 m divided SHERARD OSBORN PRODUCTION OF ELECTROTYPES.
COWPER-GOLES, OF LONDON, ENGLAND.-
Specification of Letters Patent.
Patented March 10, 1908.
, Application-filed February 25, 1907. Serial No. 359,298.
To all whom it may concern.-
Be it known that I, SHERARD OsBonN' .CowPER-CoLEs, a subject. of the King of at Grosvenor Manestmlnster, London, new and useful Im- G rreat Britain, residin slons, Victoria street, England, have invented provements in the Production of Electrotypes; and .do hereby declare that the followlng is a full, clear, and exact descriptlon of the same, which will enable others skilled in the art to which it appertains to make and use the same. This invention relates to improvements in the production ofelectrotypes for the manufacture of plates for printing purposes.
It'hasheretofore been the general practice, when 1t is desired to produce or reproduce an engraved copper plate, to make a wax mold or impresslon of the original plate and to then render, the surface of the mold or impressloncapable of conducting electricity by coatlng 1t with bronze powder or plumbago, copper being subsequently electro-deposited upon thlS prepared surface until the desired thickness of deposit is obtained. This process possesses the disadvantage of being comparatlvely slow and tedious and, owing to the low. electrical conductivity of the surfaceupon which the deposit'is made, a conslderable tlme is occupied by the copper in spreading over the whole of the surface,
this being the case evenwhen auxiliary means are employed for accelerating the first covermg of the mold, such for example as brushlng the surface over with finely iron which becomes coated with copper when lmmersed in a suitable copper solution. It has also been proposed to make moldsor matrices by impressing the original block Into soft metal, such as lead, this being effected by pressing a lead sheet on to the block from which the" impression is to be made through the medium of a grooved iron plate,
a sheet of soft or elastic rubber being Introduced between the grooved iron plate and the lead sheet.
Now, my invention has. for its object to improve the existing processes-and; to this .end I make use of a lead sheet with the soft or elast1c backing as above'described and I place upon the said soft or elastic backing a 1 whole. being l ilelld second piece of lead,the together by means of lead rivets. block or surface tobe reproduced and the ing an im ression by the block to prepared leadare then subjected to considernicety and such that it cannot be distinguished from the original.
Any suitable depositing apparatus may be employed such, for example, as those described in the specifications of my former English patents Nos. 13012/04, 15762/06 and 4668/05.
To enable the invention to be fully understood I will describe it by reference to the accompanying drawing in which Figure 1 is a perspective view of a lead plate prepared in accordance with the'lnvention. -F1g. 2 is a similar view to Fig). 1 showe reproduced an also showing the second backing, extended beyond the edges of the elastic backing.
.a is the lead sheet or pressed by the block to late which is ime reproduced, for
.mstance as shown at b in Fig. 2, and c is the soft or elastic backing placed behind the platea. dis the second piece of lead placed in contact with the elastic backing c and e e are the rivets for holding the said parts a, c and (1 together.
I 3 Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. A matrix comprising a lead sheet, an intermediate layer of elastic material and a backing of soft material," substantially as described. Y
2. A matrix comifising a sheet of lead g of elastic material,
provided with a bat and a second sheet of lead placedon the elasticbacking, substantially as described.
SHERARD OSBORN COWPER-COLES. Witnesses:
JOHN E. BONSFIELD,-' A. ALBUTT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US35929807A US881554A (en) | 1907-02-25 | 1907-02-25 | Production of electrotypes. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US35929807A US881554A (en) | 1907-02-25 | 1907-02-25 | Production of electrotypes. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US881554A true US881554A (en) | 1908-03-10 |
Family
ID=2949994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US35929807A Expired - Lifetime US881554A (en) | 1907-02-25 | 1907-02-25 | Production of electrotypes. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US881554A (en) |
-
1907
- 1907-02-25 US US35929807A patent/US881554A/en not_active Expired - Lifetime
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