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.)
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Individual
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Individual
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Publication date
Application filed by IndividualfiledCriticalIndividual
Publication of GB1001796ApublicationCriticalpatent/GB1001796A/en
B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
Landscapes
Engineering & Computer Science
(AREA)
Mining & Mineral Resources
(AREA)
Mechanical Engineering
(AREA)
Earth Drilling
(AREA)
GB29829/61A1960-08-181961-08-18Feeding device for rock-drilling machines
ExpiredGB1001796A
(en)
Dispositif de régulation automatique de la profondeur d'attaque d'outils de travailliés à un tracteur par des parallélogrammes articulés comportant un dispositif de palpage
Dispositif communiquant automatiquement aux barres porte-outil des foreuses, un recul instantané dès que l'effort de poussée dépasse une valeur prédéterminée
Mécanisme de commande du porte-outil d'une machine d'avancement d'une galerie, de percement d'un tunnel ou de creusement d'une galerie au jour
Mécanisme de commande du porte-outil d'une machine d'avancement d'une galerie, de percement d'un tunnel ou de creusement d'une galerie au jour.