These example sentences are selected automatically from various online news sources to reflect current usage of the word 'plumb bob.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. 2018 Cake pans, coffee pots, cash registers, and a white ElectroChef stove appeared amid scientific instruments such as steel calipers and a brass plumb bob. Align a wall vertically by measuring and cutting a length of string as long as the distance from the floor to the ceiling. Rhett Allain, WIRED, Accurate to within 1/4 of an inch per 100 feet of range, the kit comes with a tripod with quick-adjust legs, a heavy-duty 8-foot aluminum grade rod (feet-inches-eighths), a plumb bob, and a kit box to safeguard the laser during transport.ĭavid Grossman, Popular Mechanics, 17 Jan. The removable cap allows you to install string or line quickly and easily, while the hardened. 2019 The plumb bob will hang at the angle reading for your latitude. Find plumb quickly and easily with Johnsons plumb bobs. Wire is preferred over string for minimum stretch and maximum strength. 2020 For a long time, the tools used to measure medieval buildings were nearly as old as the buildings themselves: plumb bobs, string, rulers, and pencils.Īndrew Tallon, National Geographic, 16 Apr. Our precision machined brass plumb bobs are made in the USA to our. Ryan D'agostino, Popular Mechanics, 24 Oct. 2022 For holes deeper than three feet, drop a plumb bob (a conical weight attached to a string) into it to give you some sense whether the hole itself is plumb and uniformly shaped. Jennifer Ouellette, Ars Technica, Where many competitors use surveying equipment that’s accurate to within a thousandth of a degree to orient their robots on startup, Coordinated often relies on a plumb bob (cost: a few bucks). Many modern plumb-bobs have a reel contained inside a box that has extra functions like a magnetic strip and pin to make your job easier.Recent Examples on the Web Possible uses included: a plumb bob or a loom weight, a liquid sprinkler, a fire starter, a lamp, a smoking pipe, or parts of an apparatus for distillation. Some plumb-bobs have a reel built-in to the body of the plumb bob for ease of use. A traditional reel is often just a simple spool. Some plumb-bobs are supplied with a reel so that you can wind the string up when you’re finished with it. 310g With 14.7ft String Auto Stretch Line Measuring Magnetic Plumb Bob Hand Tool. Some models of plumb-bob have a ring attachment to which the string is tied. This set-up allows the string to protrude directly from the centre of the weight, helping with balance and accuracy. Some plumb-bobs have a threaded cap that can be unscrewed from the body and through which you feed the string, knot it and then reattach the cap. Many plumb-bobs will simply have a hole in the top of the weight through which the string is looped and tied.īuy this Monument 247X Brass Plumb Bob 71g The hole in a plumb-bob for the string to be fed through and tied may just be a simple hole, it may have a ring attachment, or a removable threaded cap which allows the string to protrude directly from the centre of the weight for greater accuracy and balance. The laws of gravity will ensure that the string is vertical (plumb) and perpendicular to the level (horizontal) ground. The string is a simple piece of thin cord which is attached to a stationary object or construction and from which the plumb-bob weight is suspended. Some models of plumb-bob come with a cap to protect the tip of the weight when the tool is not in use. The finer the point on your plumb-bob, the easier it will be to mark with accuracy. Most plumb-bobs have a pointed end so as to make it easier to align the tip accurately with a marker on the ground. At the opposite end there is a hole for the string to be fed through and tied. The weight is symmetrical for balance, and typically has a pointed end for accurate alignment. The weight or “bob” is the part of the plumb-bob that is suspended by the string.
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