It largely eliminated the need to use a plumb bob as a horizontal measurement device. This is likely because the metal, lead, was used for the earliest weights. The word itself is said to have come from plumbum, a Latin word that means “lead”. It was installed inside a frame that allowed it to turn horizontally and vertically: acting as both a level and a plumb bob. The weight was usually made from a rock or some other kind of heavy object. Used for architecture, sailing, and surveying the skies, the device likely played a major role in constructing the pyramids. Most historians agree that the first plumb bob was invented in Egyptian times. ![]() While the accuracy of this technique is debated among professionals, it is based on the same ideas that make the plumb bob device useful. Then, the golfer compares the green on either side of the putter to see which way the ball will break. The golfer squats behind the golf ball when it is on the green and extends the putter toward the hole. The term “plumb bob” is sometimes used in golf to refer to a putting technique. It can be used for all kinds of construction projects, from building a bridge to hanging art on the walls. The plumb bob gives architects and builders a vertical reference point during construction. When the weight is allowed to dangle, it pulls the string into a vertical line that is referred to as a plumb line. The string is usually made from either cotton or nylon, and the weight is typically made from brass or steel. It consists of a small weight with a pointed bottom that is attached to the bottom of a piece of string. Please view photos for additional condition information.Also called a plummet, a plumb bob is a very simple device. Be that as it may, the piece is useful, solid and intact. The entire piece is covered with nicks, scratches, dings, stains, and wear to the finish throughout, which is evident in the photos. The tip is intact and the end is still nicely pointed but a bit flattened. It has extensive wear commensurate with its age and use. A quality piece in relatively good condition a nice addition to your collection of vintage tools.Ĭondition: The piece is in good condition with no breaks or repairs. The piece weighs about 29.5 ounces (Nominal weight 30 ounces).ĭistinguishing Characteristics - Most Interesting About The Piece: Very nice old tool with nice coloring. Size: The piece measures ~6 3/4" long and ~1 3/4" diameter at its widest. Origin: Purchased an estate sale in Southeastern Pennsylvania. Please carefully review the photos as they are part and parcel of our description.ĭate: Uncertain but most likely sometime in the early to mid 1900s. These tools have been used since the times of the ancient Egyptians in construction to ensure that the construction is plumb or vertical. This Plumb Bob has been used extensively in the past as evidenced by the many dings, scratches, and staining to the surface. The body of the plumb bob is unmarked but we weighed it using our postal scale and found it to be about 29.5 ounces or 1 pound and 13.5 ounces. ![]() The top has short (~3/4") cylindrical extension with an inserted piece of rope from which it would have hung. The piece has a toned brass coloring with darkened spots, nicks, and scratches as well as a textured steel tip. ![]() The plumb bob, which is conical in shape is made of brass and has what we believe is a hardened steel tip. Description: This is a nice, heavy (the piece weighs about 29.5 ounces), large measuring ~6 3/4" long, and fairly old brass conical plumb bob.
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