, 1870-09-21
THE RAILWAY MAsTER-ME
CHANICS, !.

! ~ .::!HA, ,hEvo1u1!os1gr OF TYP y !;
THE RAILWAY .MAsTER-ME
CHANICS. Il
Their Convention AT Philadelphia
Lust Dny's scss1on.
STANDARD NUTS
hIr. Chapman prosecuted the report Of: the
Committee on Standard Nuts. The report
plies received from ffty-two, which doyoiopcd
great diversity Of opinion as to the threads,
though the sizes agroo. It WAS believed that
nuta thould be ot uniform size, and the
United Statos standard was recommended.
The report was accepted and the committee
discharged.
MATERIALS FOB PLuEs.
Mr. Jaurfet pr.sonted tho report OF tile
Committee on Materials for Flues. Circulars |
Ind been addressed aud uurneroua anBWeta
I'D been f rseslved Tss majority m, y sr1 nr eos
burners. Sseel tubes have given satisfaction,
especially for coal burners. Seven years ser
vice had been the average, with scarcely any
show Of wear. Iron WAS considered the next
beet, fitted With copper thimoles Us arentin tho
aue sbeet. THUS lifted they give entire satisfac-
ton. Either brass or copper aues arc recon-
mouded for wopd-hurne1s. Brasst stubeshad been
known to last twenty years, while others Wora
out in four years.. There Was not known any
special difference in making steam from tubss
Of different metal, although copper sknown
to te superior conductor OF hoat. No To-
commendatiou ia made as tofncroase Of thick
meas, aud the committee request that the in
veBt,gution in regard to steal aues be con-
tiuued. Tho amount OF scale in all metal
tubes Was auout the same. though steal and
copper Was preferred as accumulating the
The report was accepted aud the committee
diseharged.
DEAD WEIGHT OF BOILING sIOCE.
Mr.. Meier presented the report on the dead
weight Of rolling stock, which was regarded
Ms eubjcct of very gEeatimpoItauce, and no
sovereign remedy WAS known for the great
erila Of overweight which all locomotives had
to contend with. Answers had como in very
tparee1y. As to the reduction OF the weight
OF locomotives, the weight Of q tank engine
| truck was a8, ,125 pounds the average weight
in tho trs,ck Of the engine was 16, loS pounds.
| The average useful weight on the drivers WAS
TIT pounds, which hnvo proportion of
100 to 255; heuce the average total weight
OF the engine, with tender loa1ea. Was 1G ,713
pounds; average weight on truck, 18, 400 ar
39,27 average dead weight, Sits this
gives proportion to tho useful weight on tho
drivers lot 4s, 9a7 pounda). 100 to 76. Bakers
engine ia recommended ~ combining steam
chest, G. Under, and one-half Of the saddle in
ORG casting, which makes considerable re-
duction in the. .we1ght. Wrought iron or steel
steam pipes might recommend themselves
here, but steel Ia regarded as imprach-
cal1e as yet for JOINT cylinder and
saddle castings. The investigation Of steel
new locomotives have great dafects in weight.
There BAs also too much stiffness in tho
springs, which sometimes had $500 pounds
weight por wheel. Better arrangements we're
required a1so fos taking in fuel and water.
| MI. Fair1ie,s and Mr. Hudson's improvements
were recommended. 1t was stated that too
much water Was to be avoided. The average
weight on tho front trucks is about 1C. 369 lbs.
Tie beat foreign engines hayo more. The
plan for the consumption Of smoke
steel for friction ard plston-rods and rod
heads. as The durability Of steel WAS superior
to iron or copper. Fair1io's engine has less
wheels and LEES boxes to oil. and less dead
weight, Int requires two persons as assist.
ants to the engineer: 2h,s ha.a ensint saa
with less oscillation than others. LonE
distances travelled were estimated OF
trains in this country, with elegant sleep
ing and day sass o wheh we're .Sa1 pns9as.st ast
weight ranged from $50 to 1000 pounds. Thu
travelling public were Opposed to reducing th'
sills and heams- Iron trucks, compared b,
| strength. were lighter than wooden ones
Taking tho weight Of q car at t6 $50 pounds
the dead weight was Al as per cent, while o,
l
l cent.
@1he report vas received and the committe
. discharged.
, | gin connection Will. the report an eIaborat
essay Nas read from Y. ". Evans, OF Ne'
FORK, describing tho Fairlie engine. This en-
full, and so tons empty. In England th
= weight Of English engines were p1lcsd at s
: tons, while tho aclual weight was GO tons 10
: English engines and 81 tons for tho American
: OF the Fairlie engine Mr. Fairlio Waa not ti
|. real inventor it bad been invented by th
G Cockiplls, in Sktang, in Belgium, Is years be
5. fore, They had all proved failures at Austria
;, fairs. Herr Engerth had described tho engan
D sixteen years ago, and Mr. Fatrlie knew b
t wHa not the inventor. Similar oncs lnventc
= been made in England. and that had failed t
run around cu,yos and had to be turned bac1
=, ) Fsi1lia had obtained an order for one in PERI
S. A. -MI. Evans had two there, and he wa
). not afraid Of the comparison. Tic a
i lowance Of ten pounds per ton +
It ] Baldwin and dodgers engines were in ovel
n way superior, and Al1. Evans would psy $500
gold If better work was done by the Fairlie el
i gine, md il it proved to do it he would give q
e tracks lat three times as long with hls engin
- This was all humbuE. Breathing places hs
=, been required in Europe, but in th
:. country that would be. simply ridiculou
- = and tho engine would be ont Of breath lot
J. before reach,ng the top OF Tidcaqua grad
II Our locomotives take up ono hundred tol
= cargoes, as we'll as go around sharp curs
s easily. It waa ordered to be received a,
tr placed upon the minutes.
coLD-RoLLED SKATING.
Mr.. Sellers presented the report OF t
Committee on Cold-rollea Shafting. It 70
ii iron in guide rods, &C. they. had !
- ccived no information. In shafting
NJ adoption is urged for chetpness. requiris
d but little labor to work. As to rolled shaI
be ing, its wearing qualities wero Increased
superior toughness. Another recommend
W, o3idation. In piston rods it had been us
I'LL with good elect. They do not require clea
10 ing, and experience ahows its great
ho tensive strength, but that v
ne less than Steel The rollod is superior
-, either hammered or t9isted iron. This
a3 rolled iron Wss Objectionable On account
~. sr its liability to epriug when the key was seate
~. but it was Thought It might be ob7iated.
or The report Tas received, the commit
"a continued, and the subj eet was referred
an an tho Committee On Freight Engines.
h APPLICATION OF BRAKES
= flr. Mulligan presented tho report Of t
N Committee on Application Of Brakes. I
Ia | wedge and all other devices which throw
~. retarding force on The rail arc objected to
hn reducing tho safety Of the trains. Report
a ceiyed and committee discharged.
hv STYLE OF FREIGHT ENGINE.
~ Mr. ShaNsr presented tbs report Of
IL Committee on Style of Freight Engine.
hn was impossible to recommend unifo
style. al grades must be considered, and
On weight Of the engine as Well az the load
ra- be drawn. Further time was nskcd for
~ 9 report WAS received and the committee G.
uf tinued.
" uSlroRN nEroRrs.
m NJ, Britton presented tho report of
~ Committee on Uniform System Of Reports.
s,, }licable to the performance Of engines, VIII
an we're handed to the members for inspect
-. Tho uniform rato for switching was rec&
M 1nended at ten miles per honr.
IL, OFFICERS.
ss Officers we're elected as follows:
a. Presidential. ". Dritton.
cs 1st Fire Irtsident-S. E. Chapman.
df Cd l+iee Itesidenf-J. B. Pcndteton.
an S5sssta,g-5 Ssoa,s,!;!s. s ). PG1ss: ns9ss.
Or PASSES.
"a Dr.. Williams suggested the appointment
ely committee to confer with the Snperinte
az donts OF the country referring to. the alta
ment ct me names .t, q master meenanes 70
"a. The following were appointed. Williams, j.
liz man, and Horn.
in SUBJECTS OF DISCUSSION.
IN, The Committee On Correspondence repol
OF the following subjects for discussion I
lye Eoilers and Boiler Masertals-Messrs Ha
he | Anderson, and Jauriet.
sos Steel Tires. Wh:eis, and A1les-Mcssrs Pc
Bn'ler I0cEustations- -Messrs L. ". Moore
~ n. Boone, aud G. Q. 3Iarston.
a1s .ns c5s,a Dsad "elsnta-Nessts. Meier Benton'
ias Construction Of Furpaees-Messra II. a. Ii
as ag Ia Lap Jan and i Lead Of slide yalves-Messrs Tho
4 SON. Coolidge. NeEGir. and GARFIELD,