Lock flights Lock (water navigation)

-


the flight of 16 locks @ caen hill on kennet , avon canal


loosely, flight of locks series of locks in close-enough proximity identified single group. many reasons, flight of locks preferable same number of locks spread more widely: crews put ashore , picked once, rather multiple times; transition involves concentrated burst of effort, rather continually interrupted journey; lock keeper may stationed crews through flight quickly; , water in short supply, single pump can recycle water top of whole flight. need flight may determined purely lie of land, possible group locks purposely flights using cuttings or embankments postpone height change. examples: caen hill locks, devizes.


flight not synonymous staircase (see below). set of locks staircase if successive lock chambers share gate (i.e. not have separate top , bottom gates pound between them). flights not staircases, because each chamber separate lock (with own upper , lower gates), there navigable pound (however short) between each pair of locks, , locks operated in conventional way.


however, flights include (or consist entirely of) staircases. on grand union (leicester) canal, watford flight consists of four-chamber staircase , 3 separate locks; , foxton flight consists entirely of 2 adjacent 5-chamber staircases.







Comments

Post a Comment

Popular posts from this blog

CACHEbox ApplianSys

-
cachebox230 server appliance cachebox s caching engine employs code squid project. in 2005 launched becta approved protex content filtering service in collaboration east of england broadband network, represent more 2800 schools across 10 authorities. in 2006, acquired assets , customer base of rival freedom2. has since expanded activity north american schools market , caching device requested schools 2015 e-rate funding.
Read more

Kinship systems Apache

-
hide painting depicting apache girl s puberty ceremony, naiche (chiricahua apache), ca. 1900, oklahoma history center the chiricahua language has 4 different words grandparent: -chú maternal grandmother , -tsúyé maternal grandfather , -chʼiné paternal grandmother , -nálé paternal grandfather . additionally, grandparent s siblings identified same word; thus, 1 s maternal grandmother, 1 s maternal grandmother s sisters, , 1 s maternal grandmother s brothers called -chú. furthermore, grandparent terms reciprocal, is, grandparent use same term refer grandchild in relationship. example, person s maternal grandmother called -chú , maternal grandmother call person -chú (i.e. -chú can mean child of either own daughter or sibling s daughter.) chiricahua cousins not distinguished siblings through kinship terms. thus, same word refer either sibling or cousin (there not separate terms parallel-cousin , cross-cousin). additionally, terms used according sex of speaker (unlike english terms broth...
Read more

Western Apache Apache

-
a western apache woman san carlos group western apache include northern tonto, southern tonto, cibecue, white mountain , san carlos groups. while these subgroups spoke same language , had kinship ties, western apaches considered separate each other, according goodwin. other writers have used term refer non-navajo apachean peoples living west of rio grande (thus failing distinguish chiricahua other apacheans). goodwin s formulation: apache peoples have lived within present boundaries of state of arizona during historic times exception of chiricahua, warm springs, , allied apache, , small band of apaches known apache mansos, lived in vicinity of tucson. cibecue western apache group, according goodwin, north of salt river between tonto , white mountain apache, consisting of ceder creek, carrizo, , cibecue (proper) bands. san carlos. western apache group ranged closest tucson according goodwin. group consisted of apache peaks, arivaipa, pinal, san carlos (proper) bands. arivaipa (also ara...
Read more