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Filing date
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Priority to BE643172ApriorityCriticalpatent/BE643172A/fr
Publication of BE643172ApublicationCriticalpatent/BE643172A/fr
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
B23D21/00—Machines or devices for shearing or cutting tubes
B23D21/06—Hand-operated tube-cutters
B23D21/08—Hand-operated tube-cutters with cutting wheels
B—PERFORMING OPERATIONS; TRANSPORTING
B28—WORKING CEMENT, CLAY, OR STONE
B28D—WORKING STONE OR STONE-LIKE MATERIALS
B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
B28D1/227—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising for cutting tubes
Dispositif écrou de mise en place rapide, à deux demi-écrous, et agencement de blocage notamment pour coffrage de béton, utilisant un tel dispositif écrou