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CHAPTER¡¡XI¡£
JOSEPH¡¡BRAMAH¡£
¡¨The¡¡great¡¡Inventor¡¡is¡¡one¡¡who¡¡has¡¡walked¡¡forth¡¡upon¡¡the¡¡industrial
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and¡¡decked¡¡with¡¡honours£»¡¡but¡¡as¡¡clad¡¡in¡¡fustian¡¡and¡¡grimed¡¡with¡¡soot
and¡¡oil¡£¡¨ISAAC¡¡TAYLOR£»¡¡Ultimate¡¡Civilization¡£
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opportunities£»¡¡nevertheless¡¡invents¡¡and¡¡goes¡¡on¡¡inventing¡¡mainly¡¡to
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founder¡¡of¡¡a¡¡school¡¡from¡¡which¡¡proceeded¡¡some¡¡of¡¡the¡¡most
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work¡¡with¡¡very¡¡imperfect¡¡tools¡£¡¡¡¡A¡¡violin£»¡¡which¡¡he¡¡made¡¡out¡¡of¡¡a
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resolved¡¡to¡¡seek¡¡work¡¡in¡¡London£»¡¡whither¡¡he¡¡made¡¡the¡¡journey¡¡on¡¡foot¡£
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leisure¡¡which¡¡he¡¡at¡¡once¡¡proceeded¡¡to¡¡turn¡¡to¡¡some¡¡useful¡¡account¡£
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method¡¡invented¡¡or¡¡improved¡¡by¡¡a¡¡Mr¡£¡¡Allen£»¡¡but¡¡the¡¡article¡¡was¡¡still
very¡¡imperfect£»¡¡and¡¡Bramah¡¡had¡¡long¡¡resolved¡¡that¡¡if¡¡he¡¡could¡¡only
secure¡¡some¡¡leisure¡¡for¡¡the¡¡purpose£»¡¡he¡¡would¡¡contrive¡¡something¡¡that
should¡¡supersede¡¡it¡¡altogether¡£¡¡¡¡A¡¡severe¡¡fall¡¡which¡¡occurred¡¡to¡¡him
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he¡¡proceeded¡¡to¡¡make¡¡his¡¡proposed¡¡invention¡£¡¡¡¡He¡¡took¡¡out¡¡a¡¡patent¡¡for
it¡¡in¡¡1778£»¡¡describing¡¡himself¡¡in¡¡the¡¡specification¡¡as¡¡¡¨of¡¡Cross
Court£»¡¡Carnaby¡¡Market¡¡£§Golden¡¡Square£§£»¡¡Middlesex£»¡¡Cabinet¡¡Maker¡£¡¨¡¡¡¡He
afterwards¡¡removed¡¡to¡¡a¡¡shop¡¡in¡¡Denmark¡¡Street£»¡¡St¡£¡¡¡¡Giles's£»¡¡and
while¡¡there¡¡he¡¡made¡¡a¡¡further¡¡improvement¡¡in¡¡his¡¡invention¡¡by¡¡the
addition¡¡of¡¡a¡¡water¡¡cock£»¡¡which¡¡he¡¡patented¡¡in¡¡1783¡£¡¡¡¡The¡¡merits¡¡of
the¡¡machine¡¡were¡¡generally¡¡recognised£»¡¡and¡¡before¡¡long¡¡it¡¡came¡¡into
extensive¡¡use£»¡¡continuing¡¡to¡¡be¡¡employed£»¡¡with¡¡but¡¡few¡¡alterations£»
until¡¡the¡¡present¡¡day¡£¡¡¡¡His¡¡circumstances¡¡improving¡¡with¡¡the¡¡increased
use¡¡of¡¡his¡¡invention£»¡¡Bramah¡¡proceeded¡¡to¡¡undertake¡¡the¡¡manufacture
of¡¡the¡¡pumps£»¡¡pipes£»¡¡&c¡££»¡¡required¡¡for¡¡its¡¡construction£»¡¡and£»
remembering¡¡his¡¡friend¡¡the¡¡Yorkshire¡¡blacksmith£»¡¡who¡¡had¡¡made¡¡his
first¡¡tools¡¡for¡¡him¡¡out¡¡of¡¡the¡¡old¡¡files¡¡and¡¡razor¡blades£»¡¡he¡¡sent
for¡¡him¡¡to¡¡London¡¡to¡¡take¡¡charge¡¡of¡¡his¡¡blacksmith's¡¡department£»¡¡in
which¡¡he¡¡proved¡¡a¡¡most¡¡useful¡¡assistant¡£¡¡¡¡As¡¡usual£»¡¡the¡¡patent¡¡was
attacked¡¡by¡¡pirates¡¡so¡¡soon¡¡as¡¡it¡¡became¡¡productive£»¡¡and¡¡Bramah¡¡was
under¡¡the¡¡necessity£»¡¡on¡¡more¡¡than¡¡one¡¡occasion£»¡¡of¡¡defending¡¡his
property¡¡in¡¡the¡¡invention£»¡¡in¡¡which¡¡he¡¡was¡¡completely¡¡successful¡£
We¡¡next¡¡find¡¡Bramah¡¡turning¡¡his¡¡attention¡¡to¡¡the¡¡invention¡¡of¡¡a¡¡lock
that¡¡should¡¡surpass¡¡all¡¡others¡¡then¡¡known¡£¡¡¡¡The¡¡locks¡¡then¡¡in¡¡use¡¡were
of¡¡a¡¡very¡¡imperfect¡¡character£»¡¡easily¡¡picked¡¡by¡¡dexterous¡¡thieves£»
against¡¡whom¡¡they¡¡afforded¡¡little¡¡protection¡£¡¡¡¡Yet¡¡locks¡¡are¡¡a¡¡very
ancient¡¡invention£»¡¡though£»¡¡as¡¡in¡¡many¡¡other¡¡cases£»¡¡the¡¡art¡¡of¡¡making
them¡¡seems¡¡in¡¡a¡¡great¡¡measure¡¡to¡¡have¡¡become¡¡lost£»¡¡and¡¡accordingly
had¡¡to¡¡be¡¡found¡¡out¡¡anew¡£¡¡¡¡Thus¡¡the¡¡tumbler¡¡lockwhich¡¡consists¡¡in
the¡¡use¡¡of¡¡moveable¡¡impediments¡¡acted¡¡on¡¡by¡¡the¡¡proper¡¡key¡¡only£»¡¡as
contradistinguished¡¡from¡¡the¡¡ordinary¡¡ward¡¡locks£»¡¡where¡¡the
impediments¡¡are¡¡fixed¡¡appears¡¡to¡¡have¡¡been¡¡well¡¡known¡¡to¡¡the
ancient¡¡Egyptians£»¡¡the¡¡representation¡¡of¡¡such¡¡a¡¡lock¡¡being¡¡found
sculptured¡¡among¡¡the¡¡bas¡reliefs¡¡which¡¡decorate¡¡the¡¡great¡¡temple¡¡at
Karnak¡£¡¡¡¡This¡¡kind¡¡of¡¡lock¡¡was¡¡revived£»¡¡or¡¡at¡¡least¡¡greatly¡¡improved£»
by¡¡a¡¡Mr¡£¡¡Barron¡¡in¡¡1774£»¡¡and¡¡it¡¡was¡¡shortly¡¡after¡¡this¡¡time¡¡that
Bramah¡¡directed¡¡his¡¡attention¡¡to¡¡the¡¡subject¡£¡¡¡¡After¡¡much¡¡study¡¡and
many¡¡experiments£»¡¡he¡¡contrived¡¡a¡¡lock¡¡more¡¡simple£»¡¡more¡¡serviceable£»
as¡¡well¡¡as¡¡more¡¡secure£»¡¡than¡¡Barron's£»¡¡as¡¡is¡¡proved¡¡by¡¡the¡¡fact¡¡that
it¡¡has¡¡stood¡¡the¡¡test¡¡of¡¡nearly¡¡eighty¡¡years'¡¡experience£»*
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The¡¡lock¡¡invented¡¡by¡¡Bramah¡¡was¡¡patented¡¡in¡¡1784¡£¡¡¡¡Mr¡£¡¡Bramah¡¡himself
fully¡¡set¡¡forth¡¡the¡¡specific¡¡merits¡¡of¡¡the¡¡invention¡¡in¡¡his
Dissertation¡¡on¡¡the¡¡Construction¡¡of¡¡Locks¡£¡¡¡¡In¡¡a¡¡second¡¡patent£»¡¡taken
out¡¡by¡¡him¡¡in¡¡1798£»¡¡he¡¡amended¡¡his¡¡first¡¡with¡¡the¡¡object¡¡of
preventing¡¡the¡¡counterfeiting¡¡of¡¡keys£»¡¡and¡¡suspending¡¡the¡¡office¡¡of
the¡¡lock¡¡until¡¡the¡¡key¡¡was¡¡again¡¡in¡¡the¡¡possession¡¡of¡¡the¡¡owner¡£¡¡¡¡This
he¡¡effected¡¡by¡¡enabling¡¡the¡¡owner¡¡so¡¡to¡¡alter¡¡the¡¡sliders¡¡as¡¡to
render¡¡the¡¡lock¡¡inaccessi
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