Foro de Filatelia Argentina

filatemusico escribió:
http://www.flickr.com/photos/glennmorganuk/page42/
Can you open other topic? there are many of interesting images of machines (old a new) and explain how they work
please.

I think it is a good idea!

Glenn Morgan' site is not too well known maybe?!

http://www.stampprinters.info/

to be continued ....

By the mid 1930’s the Stickney machine was very worn and in 1936 the Swedish Postal Administration decided to replace it with a machine from the German firm Goebel in Darmstadt. This started producing stamps in late 1937, with the first issue being the Swedenborg issue released on January 29th 1938. Although the Stickney machine had coped with producing 6 billion stamps, at a rate of 250,000 per hour, the new machine could produce about 8,000 per minute, almost double the rate. Essentially the machine printed in the same way, using this time a single cylinder, which had the image of the master die imprinted on it by the transfer roller. From 1949 till 1964 the Goebels machine was augmented with another steel-plate engraving press supplied by the Swiss firm of Winkler and Fallert, Bern, but this was replaced in 1964 by a new three-colour press from the Goebel firm in Darmstadt. The first stamps from this press appeared in 1965. This machine was not a true multi-colour press, as the colours could not overlap, and could not be combined to produce additional colours. The three coloured press was used for stamps bearing more than one colour, and for printing combination booklets. The capacity of this press was about 12,000 stamps per minute.
http://jamiewoodhead.co.uk/page8.html

but this was replaced in 1964 by a new three-colour press from the Goebel firm in Darmstadt. The first stamps from this press appeared in 1965. This machine was not a true multi-colour press, as the colours could not overlap, and could not be combined to produce additional colours.

This was due to the Giori-process using 3 different ink-roller that would ink just ONE plate!

See my thread "Giori printing in recess":

viewtopic.php?f=137&t=5380&p=71981&hilit=Giori#p71981

to be continued ...

it is a pity that in México do not exist informatión of the Giori-process.
I am going to try to find more information of that period of time but I think it is going to be difficult.

Now the first:



The Penny Black stamp press was one of several used to print the 1d black and 2d blue, the first postage stamps, issued in 1840. The stamp office of the Inland Revenue created them for the printers Perkins, Bacon and Petch, for the British Post Office. The press, known as a Perkins D cylinder, was developed for intaglio recess or line-engraved printing by Jacob Perkins and patented in 1819. This press was presented to the British Library by Perkins Bacon Limited in 1963.

This is maybe the best video ever filmed about engraved stamps.
It shows all process:
Design, die engraved, die proof, transfer process to the transfer roll on the transfer press, the engraved of the cylinder with the transfer roll and the printing process.

Este es tal vez el mejor video jamás filmado sobre sellos grabados.
Muestra todos los procesos:
Diseño, grabado del dado, prueba de dado, el proceso de transferencia al rodillo de transferencia en la prensa de transferencia, el grabado del cilindro con el rodillo de transferencia y el proceso de impresión.

http://www.youtube.com/watch?v=73ZZQLY3OAg

En los casos que se tenga el dato preciso, podrían mencionar algunos sellos que se hayan impreso con cada máquina?
Argentinos claro está

Gracias!!! muy buen post!

Martin

Martín: podrízs ser más específico en cuanto a qué máquinas se usaron en Argentina? Me refiero a qué emisiones, porque se sabe que los sellos tipografiados de San Martín con punto en adelante se imprimieron en una rotativa Goebels, los huecograbadas primero en la Mailander en hojas y luego en una Goebel rotativa, etc. Saludos.
Merlo

DOn Merlo, lo que digo es que a medida que muestren las máquinas solo citen algunos sellos impresos con dichas máquinas... para ubicarnos mas en el tiempo e imaginar como los hacian...

Martin

Martín; de acuerdo, ahora entendí. La Casa de Moneda está restaurando la primitiva Goebels pero sólo para exhibición.
Merlo

Martín; de acuerdo, ahora entendí. La Casa de Moneda está restaurando la primitiva Goebels pero sólo para exhibición.
Merlo

Martín; de acuerdo, ahora entendí. La Casa de Moneda está restaurando la primitiva Goebels pero sólo para exhibición.
Merlo