Due to the force of gravity, this line will be pulled tight, establishing a vertical or plumb point of reference for construction. 2500 BCE), was the “plumb line” or “plumb-bob.” The plumb line is a remarkably simple tool-one merely attaches a heavy weight to the end of a cord, attaching the other end at an appropriate height. The ingenious solution employed by these ancient architects, already by the fourth Egyptian dynasty (c. On unlevel ground or juxtaposed to a less-than-straight surface, it can be genuinely difficult to determine a true vertical. How does one know if a building, a wall, or other structure is truly vertical-truly “plumb”? Certainly, one can eyeball it, but there are distinct limitations to sight. 11For thus Amos has said,ġ2And Amaziah said to Amos, ‘O seer, go, flee away to the land of Judah, earn your bread there, and prophesy there 13but never again prophesy at Bethel, for it is the king’s sanctuary, and it is a temple of the kingdom.’ġ4Then Amos answered Amaziah, ‘I am no prophet, nor a prophet’s son but I am a herdsman, and a dresser of sycomore trees, 15and the Lord took me from following the flock, and the Lord said to me, “Go, prophesy to my people Israel.”Īncient architects faced a rather serious difficulty. 8And the Lord said to me, ‘Amos, what do you see?’ And I said, ‘A plumb-line.’ Then the Lord said,ĩthe high places of Isaac shall be made desolate,Īnd the sanctuaries of Israel shall be laid waste,Īnd I will rise against the house of Jeroboam with the sword.’ġ0Then Amaziah, the priest of Bethel, sent to King Jeroboam of Israel, saying, ‘Amos has conspired against you in the very centre of the house of Israel the land is not able to bear all his words. Contact us for details.7This is what he showed me: the Lord was standing beside a wall built with a plumb-line, with a plumb-line in his hand. Inspect Drop Line and Plumb Bob for damage prior to use.Ĭustom weight Plumb Bobs up to 12lbs are available by special order. Remove point and store under cap when not in use. Wear appropriate protective gear when handling.
Plumb bob line free#
Free falling plumb bob can cause bodily injury and death. NOTE: Never deploy the Plumb Bob over the heads of others. Roll it up neatly on one of our reels for easy dispensing next time. Wire is preferred over string for minimum stretch and maximum strength. Removable cap allows connection to your drop line and safely stores the point when not in use.ĭon’t forget the drop line! We offer high tensile strength steel wire and reels to deploy your plumb bob. Adjustable point is double sided for maximum value and hardened for maximum service life. Our unique adjustable point allows the user to set the desired distance between the point and surface without readjusting the drop line. Heavy weight plumb bob sways less than light weight plumb bobs over longer distances.Īll plumb bobs will start to sway after some time. Specifically designed for unique applications like elevator shafts, steel erection and tower leveling our heavy plumb bobs are “straight up” the best! Our precision machined large brass plumb bobs are made in the USA to our specifications.
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