Lynchburg Virginian. [volume] (Lynchburg [Va.]) 1829-185?, 1830-04-08

OF the breasiIng; the efilux from the forsb bay
chamber is regulated b, gate which IL pln
ced ia direction OF n tangent To the wheel and
~ provided with racks and plnionsj by which
II can be draws up, so AZ TO make any degree
IF opening, and admit more or less water TO
flow on the wheel. The top of the breaslins
or crown. is rounded of toa segment of IA
lelrcle, The lower edge OF the gate when put
down, is made 10 fl To this curve, 50 ms TO
make t,ghl JOIN, aud IN consequence, when
the gate !. drawn up. the water runs be,aoe1
The lower edge and the crown IN stream into
the first bucket that presents itself oearl,
in the direction Of Tangent TO the wheel
The WATER WHEEL is bnt of wood, with
IRON shafts, ana three non sockets. The
diameter OF the wheel is II feel inches
To thr points. or l6 ieet inches 10 the centre
Of thn Hhalboards, a. its len til feet 2 inches,
from Ut 10 ont, or 7 feel , inches brtween
the shrowdngs The diameter OF the shaft Is
y inches, mud the sockets round which the arms
ofihe wheel are fastened 30 inches by 10 Tho
| number Of buckets i0--the length OF the noai-
boards has been ascerialned by tho velocity OF
tho wa e'-wheei. and the quantity OF water re-
quioa III ~ = rtl,u time.
| Nothing contributes more TO the perfect ION
! Ola machine than uniformity of motion. by
cnlrg,ng the moving matter thu motion will
| become more uniform, mud consequently, The
quanlnm II power required for producing n
certain effect, lessaned IN piopnTiipu--snd
MS the moving matter should be- applied 10 that
pat possesses The greatest revolving veoeity
We have hiiacted TO the shrow dings OF the VIII
iei-wheel as much M WAS necessary 10 over
| Come the irregularities OF acton which arise
| from the intermiilng motion OF the crank.
The following articles wore received from
Mr.. WIN kemhle, agent OF the West Font
Foundry Association, New York:
One Water Wheel Shat, ii feet 2 inches
long, with journal, inches Ia diameter.
Three sockets for Water Wheel. 80 IN, hes
square aud 10 inches deep, with projection
for hoops
Two Piummer B1ocks. with brasses aud bolts.
complete Tor Water Wheel shaft.
Two Wall Plates for the plummer Blocks, q
feet long. and 10 inches wide.
On" Crauk Wheel, q ieei IN. diameter, rim
3 l-2 inches broad, by inches deep, with
holes bored Tor crank pln, 10 give ioet, -
| teel. 4 { Of aud B IL feet stroke
| One screw Wrench.
One Set stocks aud Dies,
! Inc Sockets aud Crank WI eel were fitted TO
| the shaft
| The cost OF the above articles is eleven hun.
| dred dollars, delivered IN Richmond.
| The DuUBLE FoRcING PUNP, adopted for the
descent ol The piston. WIS first proposed by
de In Hire. (memoire pour Ia construction -
nne pompe qui tourpit committeeman de 4 eau
daus lie reservor--Alcm del acad de Paris
annu, l7l6) aud il the most proper Tor Water
Wheel IL has the advantage of raIslng nearly
twice the quantity oi wat with thr friction Oi
only one pston the valves admit of being
made OF sulhcrnl SIZE To allow tho passage OF
the water without an, unnecessary resistance,
aud can be- conveniently examined aud rep ~.
ed. The cack-snIve, whlcb Is the most pto-
per one lor this pnmp, seems also by exp
III ace, the most perfect ut ali valves thai are
used for pumps. The valves are hung almost
perppndiCular 40 the line drawn through ihr
cenlrr of tho pump barrel and made sufficient
| ly strong to resist the great pressure 10 VIII h
! they ana exposed, aud that they afford II
suhCirnt wafer WY, "uh u" No, allow mach
| mater 10 30 back, while they are shutting.
| The valve seat has two optnihgs in tue iUrm
of n nall CO ole Of inches diameter.
The VALvEs are made OF brass, without the
use oil any hammered non, when Is liable TO
! cuTfodr N the water.
The VALVE EATS are of cast iron. In order
TO replace n any Time Valve that may be
come defective, rhere is always kept an extra
set OF Valves Tor that purpose
The DIAMETER # the pump.barrel is niche.
|
10 and from The bafrel, with The exception OF
the Valve opsnings, are made Vi the same area
M thai oi the pumpbhrrrl
lhr Psros is packed with plated hemp IN
the same manner las the Piston of Steam En
gInes.
II The water is ,Iercd 10 rest ut every sue.
! cessIye stroke Of the Piston the whole mass
must again be put ~ motion through all the
length 81 tn ascending main.
IhisTrqHres ns"lesj expenditure OF power
over aud above the force which may be neCes
sar. for raising the water 10 us destination. BY
employing an aiI-vrSsel. We remGye this InpeT
! lecuon because II keeps up the motion IN the
intervals between the strokes oil the Piston.
The AuRVE Sci ofthe pump his diameter
Of feet ~ the clear. aud IN ,an u Ign Of 4
| feet, or a cubic contents Of - 90 cubic feet.
The thickness OF he metal Of the pump is
! | II inches Between the aII-vessel aud ascen
ding man Is a Valve and near hla, IN the sde
Of the pipe,a stop-cOck tor drawing If the va
ter from the ascending naihe
Asa moderate decrease of the diameter q
! the ascendIng-main To that OF the pump barre
! does not cause a very geusible increase OF rests
,ance, part cularly when the pump is no
worked too rapidly, we have taken IN. dame.
! ter of the ascending-main 7 inches IN the
clear.
The pump has been placed III an inclin-
= ed direction, and is fed from The iorebay cham
Der.
la ordef TO prevent the heavy matters from
catering into the puuip. the section pipes arc
placed above the noor of the forebay cham-
i Der.
! A wooden box has bern alta ched TO the front
. of the suction. pipe, The mouth of which is pro.
vided with brass ware mel, 10 prevent noatlng
,nattpTa from entering the uiImu. and 10 keen
floating wood, &c. from the f0rebay chamber
The gates opening in front Of il, have been sur
rounded by Ia,hes closely put together.
The aforementioned mann of supplying
the pump with water, may be considered the
most perfect, because, in this case, the pumE
is always filled with water, aud no air can re
main-a disadvantage generally connected will
a perpendicular forcing pump, especial,
where the Piston does not reach the bottom o
the barrel.