The times., 1901-03-14
A PATENT OFFICE EXHIBIT
4 Great Showing TO BE Made at
the Pan-American Exposition.
4. II. Mitherspoon's Report Contains
~ List of the Sciences and Useful
Arts That VIII BE Represented
Actual Machines Instead of Models.

. List of the ScicnceS and SetUs
Arts That VIII BE Represented-
, Actual Machines Instead of Models.
= r Witherspoon, Examiner of the
Patent once. together with whom Wal
ter H. Chamberliu. Assistant Commission
er. and Edward Y. Shepard Chief Clerk
! constitute the commission appointed by
! Commissioner Duell to collect and ar
! range tho Patent Offce exhibit at the
/ Pau-Amcrican Exposition, Yesterday sent
the following report to Assistant Com
missioner Chamberlin, describing the ex-
hibit
The Constitution provides that in or
/ der to promote the advancement of
! science and the useful arts. there may be
secured To inventors, or discoverers for
limited times the exclusive rights to
/ their inventions or discoveries. and the
purpose Of the Patent Office exhibit is to
convey to the public the Importance of
! our patert system which has grown up
under laws made in accordance with this
] provision.
I'm order to do this. some of the latest
! advances in the various arts and sciences
! have been selected for illustration, and
this exhibit as a whole will be made up
/ of working machines belonging to the
selected classes of invention. and of
! diagrams and explanatory cards briefly
! explaining the salient principles involved
/ i'm each.
Heretofore at various eXpositions it
was customary to show a large number
Of models. Illustrating various arts; but
| owing to the fact that such models are
! now more or less out of date and are
! incapable of actual operation, this year
ii was decided to make the radical change
OF operating as many actual machines as
| possible so that from these the public
! could realize the great additions to their
! comfort which they are receiving at the
hands of the inventors Of this country
Talking machines might be cited as
| one of the arts selected and it's exhibi-
| tion will involve sectional models, show
| ing on an enlarged scale the sound waves
constituting articulate speech, and full
| sized machines in actual operation.
| Diagrams showing the difference between
musical waves in the air and those of
artiCulate speech will be provided and
| cards explaining briefly the main points
| displayed viii be employed in connection
| Herewith. From the whole, layman in
few minutes win be able to get an ac-
curate idea of just how and why a
Eraphophone, a gramophone or a tele-
| phone reproduces articuiate speech.
The photographic transmission of
messages Is another art selected which
will be illustrated by two working ma
| chimes. These instruments in practice en-
| able a man in Washington to write a
| check message, or a letter, and have ii
faithfully reproduced at a distant city in
his own handwriting on a similar machine.
AT the exposition both the sending and
receiving machines will be near each other
and connected by miles OF wire, the visi-
for rrvriF
pencil of one machine and watch the
pencil of the other automatically copy his
own handwriting. through electric cur
rents sent along the wire connecting the
TWO instruments Suitable explanations OF
now aud why it operates will be supplied
In order to give the public an idea of
how pictures may be electrically repro
duced at distant points, machines for ac-
comprising this purpose will be likewise
connected by miles of wire and photo
graphs placed in one will be reproduced
on the other, so that the whole opera ton
can be taken In at once. A sectional mod
el Of a carDOrundum furnace will show
just how this important abrasive material
IS manufactured and Just what it looks
like when the furnace Is opened
The earliest and latest improvements
IN harvesting machinery will be illustrated
by suitable operating models and in the
art OF printing the Linotype and Monotype
machines will be operated on the spot.
Il comprehensive q
What they mean TO our great daily papers
a complete X-ray outfit will be in op-
eTauOni an exhibit of high vacuum phe-
nomena, together with suitable diagrams
illustrating the principles and the very
recent discoveries connected with these
still mysterious but now better known
rays will be provided.
An influence machine of the very lat
est pattern will be operated and its appli-
cation to therapeutics and other sciences
made clear.
The art of transmitting articulate
speech by means Of the variations in q
beam OF light reflected to distant sta
tion Will be illustrated by working
radiophone instrument and its principle
and mode Of operation made clear
The manufacture Of printing paper BY
the sulphide process Will be illustrated
10y beginning with the original wood and
showing each stage through the chips
the half stuff. the wet pulp and SO on Onto to-
the finished product. A picture twelve
feet long VIII illustrate a late pattern of
paper mill, and the whole operation made
so clear that ii may be digested in a
short time
In a similar manner the manufacture
or books ana other articles from linen
fibre viii be Illustrated and also a fine
collection of tubes. washers and pine
connections made from vulcanized fibre
viii be displayed.
The art of photo-lithOgraphy will be
clearly shown and explained The art OF
mercerizinG cotton will be illustrated
with samples and clear explanations,
\ t'tNlIi iItSS producing TDunQ baieS
Of cotton will make clear this important
Improvement. and an incandescent
burner, using a Welsbach mantel and
consuming oil, Will make clear to people
who live in the country that they will
not need to have gas to light their
streets in order TO get the benefit of the
best illumination.
\ number Of other useful and interest
ing arts, which could not well be shown
owing TO the size of the mechanism, will
be illustrated as in operation on moving
sftafH 4l4f
way OF putting out fires along the river
front. adopted by the city of New York .
ana involving freboat throwing it's /
powerful streams: an improved loom: !
an automobile fire engine; an immense
snow plow. clearing the way for fast
trains. hosting and conveying. as illus ,
trated by the Brown device, pneumatic /
tools, and the 'hip-hap railroad on
COney Island.
'kromscops. invented by Mr. Ives of