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Killing cones are used to facilitate the slaughter of poultry, normally chicken, ducks, or geese. [1] Such cones come in a number of sizes to accommodate different-sized birds. The cone functions by holding a bird in place - a captive bird can be placed head first into the funnel so that the animal's head hangs down through the small part of ...
ISO 128-22:1999 Technical drawings — General principles of presentation — Part 22: Basic conventions and applications for leader lines and reference lines ISO 128-23:1999 Technical drawings — General principles of presentation — Part 23: Lines on construction drawings
Comb shape varies considerably depending on the breed or species of bird. Of the many types and shapes seen in chicken cocks the principal ones are: [2]: 499 [3] the single comb, extending in a single line from the top of the base of the beak to the back of the head.
To get a true view (length in the projection is equal to length in 3D space) of one of the lines: SU in this example, projection 3 is drawn with hinge line H 2,3 parallel to S 2 U 2. To get an end view of SU, projection 4 is drawn with hinge line H 3,4 perpendicular to S 3 U 3. The perpendicular distance d gives the shortest distance between PR ...
On engineering drawings, the projection is denoted by an international symbol representing a truncated cone in either first-angle or third-angle projection, as shown by the diagram on the right. The 3D interpretation is a solid truncated cone, with the small end pointing toward the viewer. The front view is, therefore, two concentric circles.
Magazines for the poultry industry existed at this time. [4] [5] A crossbred variety of chicken was produced from a male of a naturally double-breasted Cornish strain, and a female of a tall, large-boned strain of white Plymouth Rocks. [6] This first attempt at a meat crossbreed was introduced in the 1930s and became dominant in the 1960s.
A cone can be generated by moving a line (the generatrix) fixed at the future apex of the cone along a closed curve (the directrix); if that directrix is a circle perpendicular to the line connecting its center to the apex, the motion is rotation around a fixed axis and the resulting shape is a circular cone.
A chicken can be hypnotized, or put into a trance, with its head down near the ground, by drawing a line along the ground with a stick or a finger, starting at the beak and extending straight outward in front of the chicken. If the chicken is hypnotized in this manner, it will continue to stare at the line and remain immobile for as long as 30 ...