New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1892-06-12
THE DUDLEY DYNOGRAPH CAR.
us WORK IN GIVING INFORMATION ABOUT THE
CONDITIONS OF RAILROADS.

IFS WORK IN GIVING INFORMATION ABOUT THE
CONDITIONS OF RAILROADS.
The Dudley dynograph car on next Tuesday VIII
start on its annual summer inspection tour over sew
eru OF the Eastern railroads The car IS the properly
Of f. H. dudley and on this trip 1t Will shrt out WIN
many added improvements For months MF. Daoiey
has wording hard to overcome all obstacles "nio"
nave confronted him former trips and TINS time nc
says has the mechanism Of the car In almost perfect
order Everything has been arranged in the car
by the owner and inventor that the exact conditions OF
The rails and ladbed the motion CT the car speed etc.
will be registered ON n long roll Of paper rs .ne
chr passes over the rails. The car Is now III tue
Grand Central station, and yesterday Mr. Dudcy thof
oughly explained its workings to n reporter Tor Inc
Tribune. The built expressly fo' Mr.. Dud!ey,
and II is the homo OF the inventor ana MS WIZ a' "o
as his workshop
The car forty feet long. and the instrument when
records the defects in the rails oadbed and the other
things is situated in end Of the car The istil
ment Is worked By electricity and by the movement OF
tho wheels OF the the records are made by
system OF little glass tubes filed with red INK ana
tnperine 10 fine, pen-lke points, which will trace on
parcr rs the moves along at any rate OF Spceo'
everything that is desirable to know about tho condition
az the rails and rOadbed. The paper used Is afout
twenty four inches wide and 1t passes from one roller
10 another. both the rollers moving in connection with
the wheels of the car. 4 strip Of this paper eight
feet long used to each mile tversed and the points
Of the little glass tubes mark the paper the ahgn-
men Of each rail- the degree OF curvature as vel rs
the elevation Of each the speed mt which the
chr is moving and the condition of the SUI face Of the
rails Every variation OF thirty second OF an Inch
and over recorded. In connection with the register
ING and trncng instrument In the car is conrivance
which automatically elects drop Of blue paint upon
each Joint In the track where the end OF one rail IS
Cne.sxteenth Of an inch or more out OF gear
The dyn0cIaph car goes over the different systems
behind special engine but does not travel faster than
twenty miles an hour Bcttcr results arc obtained.
Mr. Dudley says, when the does not move at q
greater speed. Along the route traversed by the car
printed slips Of paper explaining the meaning OF the
blue mark, on the rails handed to the foremen OK
tho section gangs. and they Immediately start ont
,o repair the defects. This summer Mr.. Dudley VIII
10 with his car the Lake Shore road, the New
York Central tho Boston and Albany. the Old Colony,
the New.York and New-Eng land, and several other
roads.
SIR Dudley viii live aboard the car during his trip
lie has fitted I'D conf rtable quarters and his wife will
20 with him. In the car are q well-equpped Kitchen,
llbrnry and n sittng-rOom. I'm which Mrs. Dudley has
her piano.
Mr. Dudley Is also tho inventor Of the 3D. rail-
which l. now being used on oil the big ana the new
roads. The d. rail weighs 100 pounds 10 thc ynru
which is almost twice as heavy most Of the rail;
now in use II contains lnrger per cent OF carbon
than the ordinary rail- and account OF IT. size md
weight better speed can be made over road built OF
these rails 30 Mr. Dudley says. The tracks running
through the New York central tunnel Will soon De
b,ilt Of 'hc lOopound ID rails.
Mr. Dudley : ohio man. but ne Il well Known
in New. Yori aud elsewhere scientific student.
lie * n member Of the Academy of sciences AMI
vice-prcsdent Of the American Ncloscohcal nocic'y