whipsaw

　 　 　

WordNet

1. victimize, especially in gambling or negotiations
2. saw with a whipsaw

PrepTutorEJDIC

1. 糸のこぎり / (二人用の)細身の縦びきのこぎり

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/02/22 03:35:05」(JST)

wiki en

[Wiki en表示]

For the film, see Whipsaw (film).

'The Sawpit' by Luke Clennell

A whipsaw or pitsaw was originally a type of saw used in a saw pit, and consisted of a narrow blade held rigid by a frame and called a frame saw or sash saw (see illustrations). This evolved into a 2-3 metre straight, stiff blade without a frame and a handle at each end. It was used close to the felling site to reduce large logs into beams and planks. Sawyers either dug a large pit or constructed a sturdy platform, enabling a two-man crew to saw, one positioned below the log called the pit-man, the other standing on top called the top-man. The saw blade teeth were angled and sharpened as a rip saw so as to only cut on the downward stroke. On the return stroke, the burden of lifting the weight of the saw was shared equally by the two sawyers, thereby reducing fatigue and backache. The pitman had to contend with sawdust in his mouth and eyes and the risk of being crushed by a falling log.

GalleryEdit

• Woodcut showing work above a saw pit

• Pitsaw being sharpened

• Two men sawing lumber with a pit saw, the log on trestles rather than over a saw pit

• Two types of hand-powered frame or sash saws

• A postcard of Chinese sawyers using frame saws around 1900. This method does not need a saw pit.

ReferencesEdit

External linksEdit

• The Wisconsin Logging Book, 1839-1939: Whipsaw to up-and-down saw

English Journal

• Whipsaw cancer treatments: the role of hormesis in endocrine and immune therapies.

• Prehn RT1, Berd D.
• Seminars in oncology.Semin Oncol.2006 Dec;33(6):708-10.
• In this report, we propose a philosophy of treatment that few physicians may be bold enough to actually embrace, but which we believe may eventually find a place in the oncologist's armamentarium. The proposal is based on two assumptions: (1) that many hormones and other biologicals have reverse eff
• PMID 17145351

• Chaneya, a New Genus of Winged Fruit from the Tertiary of North America and Eastern Asia.

• Wang Y, Manchester SR.
• International journal of plant sciences.Int J Plant Sci.2000 Jan;161(1):167-178.
• A new genus is recognized on the basis of wind-dispersed fruits from the Eocene of western North America and Miocene of eastern Asia. The fruits consist of an accrescent hypogynous calyx of five obovate sepals and one or more globose fruit bodies. Although the fossils were formerly placed in the ext
• PMID 10648207

Related Links

• Whipsaw - Industrial Design & Engineering

Industrial Design & Engineering consulting firm located in the heart of Silicon Valley, CA, with a focus on innovative product development & branding. ... 7 Whipsaw products debut at CES. Sprimo was “The Coolest Thing at CES ...

• Whipsaw | Definition of Whipsaw by Merriam-Webster

transitive verb 1: to saw with a whipsaw 2: to beset or victimize in two opposite ways at once, by a two-phase operation, or by the collusive action of two ... A whipsaw is a type of handsaw worked by two people, one of whom stands ...

• Whipsaw - definition of whipsaw by The Free Dictionary

whip·saw (wĭp′sô′, hwĭp′-) n. A narrow two-person crosscut saw. tr.v. whip·sawed, whip·sawed or whip·sawn (-sôn′), whip·saw·ing, whip·saws 1. To cut with a whipsaw. 2. Games To win two bets from (a person) at one time, as in faro.