The Portland daily press., 1876-05-16
SiAfo Carries,

There are several slate companies in Maine
represented in the mineral department. The
largest display is made by the State Company
of Skowhegan, L. II. Dinsmore agent. The
products are exhibited by Capt. Marcus Wright
of Portland Samples of the product of this
quarry lathe turned into pillars and roofing
slate finished and unfinished of very fine quail
ty are exhibited. These samples occupy a
space 10 Vt So.
A. II. Merrill of the Brownville quarries,
makes good display of roofing slate in SIT 50'
and o H. Chandler of Brownvlle has some
fine samples in st 81"
Iron Products.
The Katahdin Iron Works, Of which ., w.
Davis, Jr, of Bangor is agent, fills case near
"U co." 1t is not SO imposing as the
companies, but it is one of the best arranged
and most suggestive displays in that important
department of our industries. Commencing at
one end of the case we find samples of the va
rious ores as taken from the eoWels OF the earth,
next the material after the first process of the
SINE ting followed by the mineral as it appears
in its various stages until 1t appears as pig
iron. just back of the ore and iron are sections
of the birch, maple and dogwood from which
the coal is made to reduce the ore, succeeded
by the charcoal ITSELF The other materials
used es huxes etc. are also in the case, which
is only about 2x6 feet. The iron from the Ka-
tahdin Works has no superior in theJ market,
and is used for making the best Of steels.
Various Other Minerals.
None of the numerously reported silver mines
are represented in the mineral department.
Messrs. Knight & Whidden make a most
creditable display of calcined plaster and
ground plaster for agricultural purposes.
Mr.. E. III. Patten of Bath, makes display
of feldsear, which is now being manufactured
by Bath company from quarry.in Bowdoin-
ham.
Doubtless there are other mineral products
scattered apout in hooks and corners enclosed
by the eleven miles of avenues and aisles in the
main building but life is short and art, science,
minerals and such ara dreadfullo long, numer-
GUS and obscure in this Centennial exhibition.
Lewiston Machine Co., etc.
PHILADELPHIA, May ID.
In my letter of yesterday L thought ad
noticed all the products from Maine in the
main hall, but 1 find that had passed by one
or two important features one of which was
Mr.. l.. f. Pinsree's display of artificial legs, to
be found in IN 3d." The samples compare ia
vorably in every essential respect with those
exhibited by the numerous competitors in that
department., and in several important respects
are admitted to be superior.
Mr.. Joseph Ward of Wiscasset, presents a
sample of village newspaper bound in a vol
ume In mechanical point of view it is ex.
cellent and is rather sample of book printing.
Machinery Hall.
Commissioner Haskell gave me two hours of
| his time this morning. which was devoted to
| looking up the contributions of our state in
| Machinery Hall.
In ga %" the Howard Manufacturing Co. of
Belfast exhibit very simple yet valuable piece
| of machinery for mitering wood for Joints and
| corners. The same champer is secured on the
| pieces to be joined by means of rest which
| can be fixed at any angle desired, while sharp
| cutter, to which power is applied, makes a
| clean cut In the same space, Mr.. l.. B. Pal
mer of Belfast exhibits very ingeniousy con-
| structed piece of machinery for ionting barrel
slaves. In ST 80" the Howard Manufacturing
| Co. exhibit Burgess Proof Press, which has
| just been patented by Belfast printer named
Burgess The galley of type is placed on a
| surface of iron, apon which another surface is
| turned by a crank. Against this firm upper
| surface the the lower bed is raised by means
| of alever. 1t appears to be a great improve
ment over the present proof press. Mr. Sell
| win N. McGilvery of the same city. exhibits
| model for ship-a very ipe specimen of naval
| architecture. These samples do great credit to
the mechanics of Belfast, which, taking popu.
lation, ETC., into consideration, is not excelled.
In ID 32' Harrington's model yacht of Bath
is found. 1t is full rugged and fitted to the most
minute thing. 1t is about six feet long and at
tracts the attention of those who are confident
| that perfect craft with sails is the thing of
| beauty.
| In SD 40" Mr. John c. Getchell of Machias
occupies space with his Jipsey Capstans for
hosting ships anchors. He has applied for a
| patent. 1t appears to be very valuable in
/ vention, giving vast power by the means of
| two levers which work from a perpendicular
| position outward toward a horizontal.
| We now come to "Section 6" and there find
| the Saco Water Power Machine Shop exhibit,
| which fills three blocks of snace numbered AZ
| az and ~. with its cotton machinery which is
| pronounced the best in the building m ia not
| gotten IN for the occasion. Int is such as the
| Corporation is making and putting into cotton
| mills constantly. 1t cost the COMPANY $4,000 to
| nut the machinery on exhibition, exclEsiVe of it's
| yalue in itself. which is more than donble that
| sum. One of the pieces is the self acting shin
| ning mule. which IS the latest announcement in
| that line. Hon, J. III. McMnllan' the accent of
| the company. is entitled to the thanks of ali
| men who believe in the down east state for this
| rare exhibit Of machinery. Mr.. Frank Nonrse
| of Boston has charge of the machinery. The
| we'll known sbops OF the comnanv are situated
| in Biddeford.
The Hardy Machine Co. also halls from Rid
| deford. and occu MES r. az with it's goods which
| are favorably known TO every cotton and wool
| en- manufacturer, The cards of cotton and
| wooden mills REQUIRE TO be .sground'' once in
| five or six weeks. Formerly a grinder was a
cylinder the length of the card covered with
| emery. These were obiect;onahla hecapsa II
was nearly impossible to grind all parts of the
| card alike. Mr. Hardy conceived the idea of a
| rotary grinder, four or five inches wide, which,
| being attached to a true cylinder, should pass
| back ward and forward and grind both the duff
| fer and main cylinder at once. 1t was so sue
/ cessful that 1t has caused an entire revolution
| in card grinding 1t has also been adapted to
the grinding of other machiney used in the
| manufacture of cotton, and to the sharpening
| OF planlng machine knives. The patent is very
The Lewiston Machine Company occupies