New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1857-07-16
INDUSTRIAL AND SCIENTIFIC INTEL
LIGENCE


for .oft or family bread. The failures have been 70
numerous that has been considered quite impossible
to make mechanical labor perfect substitute for
manual labor in this important branch OF break-mak-
ing. 1t was very desirable 10 accomplish this objec.
under the ordinary system Of baking, for the labor OF
kneadng the dough excessively severe ard the ex-
hausted workman, reeking with preparation, viii Of
ten remit his exeions at the very time they sh>uld be
continued to work the dough efectusIy and thus in
ure the quality ofthe bread. 1t has become still
desirable indeed almost Indispensable to knesd tho
dough by machinery in order to keep the newly in.
vented big ovens constantly supplied and therefore
Mr. Berdan the inventor, has devoted special atten
ton lately to this subject. He has built machine and
placed trial at ordinary French bakery 10 ths
city, and the quality Of the bread produces s not
ceed by the most careful hand work. The corstr,c
ton Of this machine is very simple and strong. The
defects Of machinery applied to this operation have
been cboppisg up the dough, working !: short and
he atpg it so as to kill the life Of the -four instead Of
preserving certain continuity Of the 10 combine
ton with thorough mixing process Incorporating the
air perfectly effects which are produced by the VIC.
lent action of the hands and of the workman in
punching, squeezing drawing out and doubling up the
dough. The process and effects of working dough ara
somewhat similar to those of working boiled s.rup; By
ore method graduates into sugar. and by another IL
forms candy. Mr.. Berdan aimed to initiate the manual
operation Of kneading dough- and hos succeeded in
producing the same effects. The machine will have
the capacity of kpeadiDg batch Of ten barrels Of Hour
every half hour and will be worked by ligh. appE-
cation of steampower in connection with the machinery
of the automatic oven. It is stationary cylinder Of
wood open on the top ten feet long by six feet in d
smeter in which is horizontal SHAFT so secured that
the il side heads of tie cylinder revove with il; and
on these heads extending near the periphery,
are iron bars varying in FORM which have the duty OF
mixing and thoroughly Incorporating the folr and
water as they revolve. This part of the operation o.
kneadng is the first in order after the sponge Is raised,
and is performed by the rotation Of the cylinder in q
few minutes After this work is done another opera
tion commences which is executed by an additional
which is movable and inserted at the right
time This s plain pankshaped affair, which swings
on hinges in eccentric manner and plunges INTO the
dough at the bottom Of the cylinder cuts OF and raises
up portion of the dough till IL passes over certain
point, sprea dirg and drawing it out in the act ana
then throwing or Tapping it down with force 30 as "a
il cose the air and initiate tue same motion and resus
accomplished by the workman with his hands ana
arms. This movement is continued until the dough is
perfectly kneaded when it is taken out by trsp door,
AZ the machine is ready to receive another oatch
The three great objects of this invention are cleanh-
ne IS, uniformity of quality and economy; and large
establishments will also have untiring and faithful
servant always ready TO perform any amount OF work
required.
PBoroGRApHs-A New AND VALUABLE Discov-
rRy-Uamilton l.. Smith Professor OF Chemistry IN
KENYON College, Gambler, Ohio, has made one Oh inc
most important discoveries Of the age in PhoogIaphic
art. 1t consists in coating glass plate with Impn
presevatve liquid which, after pei9g af,ea a. snS
forn rio nj q
will remain sensitive for any length Of time, kept
from the light After exposure in the camera tue ia
ent picture will also remain for months before pethg
developed, and will then come out as intense as de-
yeloped the same hour it was TAKEN ProI. nartons
late of Philadelphia, has gone to the Ear West, ana
taken with him four dozen plates and camera with
which 70 take views of the most picturesque scenery
to be found and develop the plates after his return I'd
the States. How valuable this would have been TO
Col. Fremont and to Com. Perry N his Japan e1pedi.
ii, H. How valuable for taking views in any part OF
the world This Government should purcha.e the
process and give it to the world as France did the
DsguerreOtype. The great advantages which viii re.
sut from this discovery to travellers, exI orers ana
Geographical companies will be evident at once. Fac
Smiles Of any locality could be taken in fsw mo-
Inc nts time with nothing but the camera and the plae
ard these can be repeated to nnty Ibis II the great
desideratum which has so long baied the ingenuity
and science of expermentasts in this art and which,
il was feared, could not be attained. Is dscoveryis
the result Of long continued study and tha
march of science as developed in the beautiful Photo
graphic art As this process will greatly interest all
practical and amateur Photographers In thus country
and Europe, We will here state for the niormanon ot
any and all who wish to make inquiries relative TO me
process or purchase the same that such Information
viii be impaired by W. c. North 4 Co., Cleveland,
Ohio. lCleveani Leader.
RAssoME's PROCESS FOR PRESERVING SrosE.-
The preservation Of stone Is subject which has within
the last few years received large proportion OF aten-
ton from various persons. Oeagnous or glmmy COM
pounds have been tried for the purpose and proved to
be of little avail they Of necessity becoming decom'
posed after brief Exposure to the atmosphere. Dir.
Ransome having turned his attention TO The matter,
bas therefore, sought for IN indestrucbIs mineral,
manner The stone or other material is coated Or sat-
urated wholly specifically, with solution OF solu-
BILE siicate and has afterward applied to 1t solution
of chloride of calcium by which an insouble slicste
of lime is formed in the body Of the stone In plsce
of soluble sicate and chloride of calcium other pre-
psrations may be used the consisting IN the
publication in succession of two solutions, which, BY
mutual decomposition produce an ins0luble SUBSTANCE,
which deposited in the structure and on to the sur
face Of the stone other material This compound V
remarkably tenacious and cohesive One important
feature in Mr.. Rsnsomes process Is that 1t not only
prevents stone from decaying but ehectuauy pre-
Vents the further decay Of that which Is already rap
idly approaching disentegration. The efficacy q TINS
mineral is not confined to stone alone, Dut msy %
piled to brick, lime stucco, &C., with equally Elective
results The patentee has been making some import
ant experiments upon the new Houses Of PaMament,
and We trust he will not have the dasetnfeceon %
finding his invention disegerded BY those who should
be The fifst+o avail themselves OF It. Hits advisable
70 experd 90 many thousands on the erection OF q
structure to adoIn metropolis, it is surely the durp
of those in whose hands the discretion lies 20 take ad-
vantage of the here offered for preserving 10
same. London hecnsn'cs "eeaA1o'
: CRyyy Com FOR FooD THROUGHOUT TIE YEAR.--
Mr.. David Rowe Of Iancaster, Ps has discovered asd
=. enrv