Search results
Results from the WOW.Com Content Network
A punch list is a document prepared during key milestones or near the end of a construction project listing works that do not conform to contract drawings and specifications that the general contractor must correct prior to final payment. [1]
Rancho Las Positas y La Calera was a 3,282-acre (13.28 km 2) Mexican land grant in present-day Santa Barbara County, California.The grant consisted of two parts:- "La Calera" (The Lime Kiln) given in 1843 by Governor Manuel Micheltorena to Narciso Fabregat, and "Las Positas" (Spanish for "little pools", the diminutive form of "las pozas" - probably referring to water from Veronica Springs ...
The punch force required to punch a piece of sheet metal can be estimated from the following equation: [4] F = 0.7 t L ( U T S ) {\displaystyle F=0.7tL(UTS)} Where t is the sheet metal thickness, L is the total length sheared (perimeter of the shape), and UTS is the ultimate tensile strength of the material.
Rancho Las Positas was a 8,880-acre (35.9 km 2) Mexican land grant in present-day Alameda County, California given in 1839 by governor Juan Alvarado to Robert Livermore and José Noriega. [1] Las Positas means "little watering holes" in Spanish.
The origins of the hole punch date back to Germany; Friedrich Soennecken filed his patent on 14 November 1886, for his Papierlocher für Sammelmappen, a multiple-hole punch and office supply product. [1] [2] A Google Doodle was used on 14 November 2017 to celebrate the 131st anniversary of the hole punch. [3]
Punchboards used for gambling in California in the 1910s were a game "where the player puys for the privilege of inserting a disk in a covered hole on a board and punches out a number, which, if it corresponds to a certain number on the board, a prize is awarded the player."
A 3/4 inch conduit size punch actually punches a hole that is approximately 1.1 inches diameter for 3/4 nominal size conduit. A dimensional size punch makes a hole very close to the indicated size. Punch sets are available on both imperial and metric sizes. Chassis punches are available in a number of shapes, round being the most common.
A center punch is used to mark the center of a point. It is usually used to mark the center of a hole when drilling holes. A drill has the tendency to "wander" if it does not start in a recess. A center punch forms a large enough dimple to "guide" the tip of the drill. The tip of a center punch has an angle between 60 and 90 degrees. [1]