No brake is required to prevent an excess of cord being pulled out, other than the friction of the pads 28 and 32 upon the cord. A desired length of the cord 3'! may then be pulled from the orifice 33. Whether the tool is to 'be used as a chalk-line box or as a plumb-bob, the spool 34 may be freed for rotation by swinging the crank 41 so that the handle 48 is outwardly beyond the plane of the box bottom' I2. It will be understood that the interior of the case "I normally contains chalk or a like substance, which is sealed therein by the pads 28 and 32, the packing ring 45, and the heads of the screws 20 and 2| which close all the openings leading to the interior of the case. B44D3/00- Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for Methods or devices for colour determination, selection, or synthesis, e.g.B44D- PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR PRESERVING PAINTINGS SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES.B25H7/00- Marking-out or setting-out work.FOR MARKING-OUT WORK STORAGE MEANS FOR WORKSHOPS
#STRAIT LINE CHALK LINE REEL PLUMB BOB PORTABLE#
B25- HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS.G01C15/00- Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00.G01C- MEASURING DISTANCES, LEVELS OR BEARINGS SURVEYING NAVIGATION GYROSCOPIC INSTRUMENTS PHOTOGRAMMETRY OR VIDEOGRAMMETRY.238000006011 modification reaction Methods 0.000 description 2.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by STRAIT LINE PRODUCTS filed Critical STRAIT LINE PRODUCTS Priority to US116488A priority Critical patent/US2589500A/en Application granted granted Critical Publication of US2589500A publication Critical patent/US2589500A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee STRAIT LINE PRODUCTS Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US116488A Inventor Robert K Landon John R Thomson Current Assignee (The listed assignees may be inaccurate.
#STRAIT LINE CHALK LINE REEL PLUMB BOB PDF#
Google Patents Combined chalk-line box and plumb bobĭownload PDF Info Publication number US2589500A US2589500A US116488A US11648849A US2589500A US 2589500 A US2589500 A US 2589500A US 116488 A US116488 A US 116488A US 11648849 A US11648849 A US 11648849A US 2589500 A US2589500 A US 2589500A Authority US United States Prior art keywords box case lid line box spool Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US2589500A - Combined chalk-line box and plumb bob US2589500A - Combined chalk-line box and plumb bob
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