shackle

WordNet

a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner) (同)bond, hamper, trammel
a U-shaped bar; the open end can be passed through chain links and closed with a bar

PrepTutorEJDIC

手錠,手かせ,足かせ / (自由の)束縛 / …‘に'足(手)かせをはめる / …‘を'束縛する
…‘を'かせをはずす;…‘を'解放する
(家屋などが)倒れそうな,がたがたの
掘っ建て小屋

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/12/10 18:16:06」(JST)

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For other uses, see Shackle (disambiguation).

A well used shackle.

A shackle, also known as a gyve, is a U-shaped piece of metal secured with a clevis pin or bolt across the opening, or a hinged metal loop secured with a quick-release locking pin mechanism. They are used as a connecting link in all manner of rigging systems, from boats and ships to industrial crane rigging.

A carabiner is a variety of shackle used in mountaineering.

Types

Pin shackle

A pin shackle is closed with a clevis pin. Primarily used above the deck, pin shackles used to be the most common shackle used aboard boats. Pin shackles can be inconvenient to work with at times because they are secured using something else, usually a split pin or seizing wire.

Threaded shackle

A moused shackle

The pin is threaded and one leg of the shackle is tapped. The pin may be captive, which means it is mated to the shackle, usually with a wire. The threads may gall if overtightened or have been corroding in salty air, so a liberal coating of lanolin or a heavy grease is not out of place on any and all threads. A shackle key or metal marlinspike are useful tools for loosening a tight nut.

For safety, it is common to mouse a threaded shackle to keep the pin from coming loose. This is done by looping mousing wire through the hole in the pin and around the shackle body. For pins that have a cross-hole in the threaded end a cotter pin can be used. One disadvantage is that mousing can introduce galvanic corrosion because of material differences; it is especially bad when used in places where the shackle is exposed to air and water.

Snap shackle

A snap shackle spliced to a line.

As the name implies, a snap shackle is a fast action fastener which can be implemented single handedly. It uses a spring activated locking mechanism to close a hinged shackle, and can be unfastened under load. This is a potential safety hazard, but can also be extremely useful at times. The snap shackle is not as secure as any other form of shackle, but can come in handy for temporary uses or in situations which must be moved or replaced often, such as a sailor's harness tether or to attach spinnaker sheets. Note: When this type of shackle is used to release a significant load, it will work rather poorly (hard to release) and is likely to have the pin assembly or the split ring fail.

D-shackle

Also known as a chain shackle, D-shackles are narrow shackles shaped like a loop of chain, usually with a pin or threaded pin closure. D-shackles are very common and most other shackle types are a variation of the D-shackle. The small loop can take high loads primarily in line. Side and racking loads may twist or bend a D-shackle.

Headboard shackle

This longer version of a D-shackle is used to attach halyards to sails, especially sails fitted with a headboard such as on Bermuda rigged boats. Headboard shackles are often stamped from flat strap stainless steel, and feature an additional pin between the top of the loop and the bottom so the headboard does not chafe the spliced eye of the halyard.

Twist shackle

A twist shackle is usually somewhat longer than the average, and features a 90° twist so the top of the loop is perpendicular to the pin. One of the uses for this shackle include attaching the jib halyard block to the mast, or the jib halyard to the sail, to reduce twist on the luff and allow the sail to set better.

Bow shackle

With a larger "O" shape to the loop, this shackle can take loads from many directions without developing as much side load. However, the larger shape to the loop does reduce its overall strength. Also referred to as an anchor shackle.

References

Look up shackle in Wiktionary, the free dictionary.

Wikimedia Commons has media related to: Shackles

Edwards, Fred (1988). Sailing as a Second Language. Camden, ME: International Marine Publishing. ISBN 0-87742-965-0.
Hiscock, Eric C. (1965). Cruising Under Sail. Oxford University Press. ISBN 0-19-217599-8.
Marino, Emiliano (1994). The Sailmaker's Apprentice: A guide for the self-reliant sailor. Camden, ME: International Marine Publishing. ISBN 0-07-157980-X.
| Simply Circus Shackles Page

English Journal

'The pump was a saviour for me.' Patients' experiences of insulin pump therapy.

Garmo A1, Hörnsten Å, Leksell J.Author information 1School of Health and Social Studies, Dalarna University, Umeå, Sweden. anna.garmo@ltdalarna.seAbstractBACKGROUND AND AIM: The present study formed part of a larger study examining the potential long-term effects of glycaemic control and treatment satisfaction in people with Type 1 diabetes mellitus who changed from multiple daily insulin injections to insulin pump therapy. Individuals (n = 46) who made the transition between May 1999 and February 2004 participated. The aim of the study was to describe experiences of the impact of insulin pump therapy in adults with Type 1 diabetes mellitus after > 5 years' use of an insulin pump.
Diabetic medicine : a journal of the British Diabetic Association.Diabet Med.2013 Jun;30(6):717-23. doi: 10.1111/dme.12155. Epub 2013 Mar 15.
BACKGROUND AND AIM: The present study formed part of a larger study examining the potential long-term effects of glycaemic control and treatment satisfaction in people with Type 1 diabetes mellitus who changed from multiple daily insulin injections to insulin pump therapy. Individuals (n = 46) who m
PMID 23398606

Analysis of a slow-growing line reveals wide genetic variability of carcass and meat quality-related traits.

Chabault M1, Baéza E, Gigaud V, Chartrin P, Chapuis H, Boulay M, Arnould C, D'Abbadie F, Berri C, Le Bihan-Duval E.Author information 1Institut National de la Recherche Agronomique (INRA), UR83 Recherches Avicoles, F-37380, Nouzilly, France. Elisabeth.Duval@tours.inra.fr.AbstractBACKGROUND: Slow-growing lines are widely used in France for the production of high quality free-range chickens. While such production is mainly dedicated to the whole carcass market, new prospects are opening up for the development of cuts and processed products. Whether the body composition and meat quality of slow-growing birds can be improved by selection has thus become an important issue. The genetic parameters of growth, body composition and breast meat quality traits were evaluated in relation to behaviour at slaughter in a large pedigree population including 1022 male and female slow-growing birds.
BMC genetics.BMC Genet.2012 Oct 23;13:90. doi: 10.1186/1471-2156-13-90.
BACKGROUND: Slow-growing lines are widely used in France for the production of high quality free-range chickens. While such production is mainly dedicated to the whole carcass market, new prospects are opening up for the development of cuts and processed products. Whether the body composition and me
PMID 23088779

Numbers of Salmonella recovered by sponge or low volume whole carcass rinse sampling of inoculated commercial turkey carcasses.

Smith DP.Author information Department of Poultry Science, North Carolina State University, Campus Box 7608, Raleigh, NC 27695, USA. doug.smith@ncsu.eduAbstractProcessed turkey carcasses are sampled for Salmonella via sponge sampling, whereas broilers are sampled via whole carcass rinses. Because different sampling methods have been reported to produce different results, sponge sampling and whole carcass rinsing (WCR) were performed on turkey hen carcasses inoculated with a known amount of nalidixic acid-resistant Salmonella enterica serovar Enteritidis. Five turkey hen carcasses were collected from the shackle line in a commercial processing plant in each of 4 replicate trials. Carcasses were placed in a cooler with a small amount of ice and transported to the laboratory for approximately 1.5 h. Salmonella inoculum was applied by spreading 0.5 mL on the back and 0.5 mL on the thigh. After 10 min, the carcasses were sampled via a premoistened 4×8-cm sponge, swiping 10 times vertically and 10 horizontally on the back, and then repeating the same sequence on the thigh using a 10×5-cm template. After sponge sampling carcasses were placed in a clean plastic bag, 200 mL of buffered peptone was added, and bags were manually shaken for 60 s for a low volume whole carcass rinse (WCR). Liquid from stomached sponges and from WCR rinsate was serially diluted in 0.85% saline and plated onto Brilliant Green agar with sulfapyridine containing 200 ppm of nalidixic acid. Plates were incubated at 37°C for 24 h and colonies indicative of Salmonella were counted and transformed from cfu/mL to log cfu/cm2. The low volume WCR recovered significantly more Salmonella than sponge sampling in trial 3 (log 3.1 vs. 2.3, respectively) and trial 4 (log 3.1 vs. 2.2, respectively). No differences were observed in trials 1 and 2 due to sample method. Low volume WCR is equal to or more effective than sponge sampling for recovering inoculated Salmonella from turkey carcasses.
Poultry science.Poult Sci.2012 Aug;91(8):2017-21. doi: 10.3382/ps.2011-01985.
Processed turkey carcasses are sampled for Salmonella via sponge sampling, whereas broilers are sampled via whole carcass rinses. Because different sampling methods have been reported to produce different results, sponge sampling and whole carcass rinsing (WCR) were performed on turkey hen carcasses
PMID 22802199

Lived experiences of patients on hemodialysis: a meta-synthesis.

Bayhakki1, Hatthakit U.Author information 1Faculty of Nursing, Prince of Songkla University, Thailand. ba_i_hq@yahoo.comAbstractPatients on hemodialysis may experience physical, psychological, and relationship changes. The objective of this meta-synthesis was to analyze and synthesize findings from qualitative studies of lived experiences of patients on hemodialysis. Ten articles were included in the final review. Four themes emerged as a result of synthesizing the findings of those studies: having a physical shackle in life, feeling mental and emotional distress, relying on a hemodialysis machine, and dealing with problems.
Nephrology nursing journal : journal of the American Nephrology Nurses' Association.Nephrol Nurs J.2012 Jul-Aug;39(4):295-304; quiz 305.
Patients on hemodialysis may experience physical, psychological, and relationship changes. The objective of this meta-synthesis was to analyze and synthesize findings from qualitative studies of lived experiences of patients on hemodialysis. Ten articles were included in the final review. Four theme
PMID 23061114

Japanese Journal

Optimal scheduling of block lifting in consideration of the minimization of traveling distance while unloaded and wire and shackle replacement of a gantry crane

ROH Myung-Il,LEE Kyu-Yeol
Journal of marine science and technology 15(2), 190-200, 2010-06-01
NAID 10027717355

Consilience and the Naturalistic Foundations of Evolutionary Economics

HERRMANN-PILLATH Carsten
Evolutionary and Institutional Economics Review 5(1), 129-162, 2008
… This diagnosis matches with certain economic approaches to entrepreneurship and uncertainty, such as Shackle's. …
NAID 130000069592

輸入食品の安全性--FTA進展の足かせ

小林通
国際関係学部研究年報 28, 125-141, 2007-00-00
NAID 40015417482

F.A.ハイエクの主観主義について--G.L.S.シャックルとの対比から

吉野裕介
経済論叢 175(5・6), 523-540, 2005-05-00
NAID 120000886294

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