New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1855-06-12

very instant another Of eight chambers can be IN
serted Thus, after eight charges have been nred
eight more are ready, aud so in many OF the eight
chambers as may be carried is required, saving TIE
carrying Of any other ammunition.
HoTcHxIss's SYLr-ADJusrrYG ScREw-WREScH.-A
very simple and admirable tool with the above name
has been recently invented by MIR. A. Hotchkiss OF
Sharon Valley, Conn., The extreme facility with which
II is ADAPTED 10 different sized bolts and nuts forms its
chief distinctive feature the movement being accom-
plished with ease by pressing with the thumb upon
pro;ec ton on tie movable portion of the wrensh'
The bar is followed on the front side, and armed with
cross grooves which transform it in fact into portion
of nut A loose hollow screw, or rather threaded
thimble is attached to the movable jaw and fits cu-
rately into tie grooves described, being pressed mo
contact BY a concealed spring. The strain on the
wrench when applied to use tends TO force the screw
into still closer contact with the grooves so that all
possibility of slipping is avoided, while at any moment
gentle pressure the projection raises the screw out
OF contact and allows OF is being shifted If greater
accuracy of adjustment should be required It Is OBJ
tained by revolving the screw or threaded thimbe.
Tie movable Jaw is of malleable iron. The hollow
screw is fitted on nicely turned projection on the
Jaw The bar is of wrought iron, forged IN one piece
and case-herdened the whole constituting one OF the
strongest as well as most enient screw wrenchos
in existence.
GARDENERS QUARTZ CRusHER.-Mr. Henry Gard-
nsr of this city has invented model of quartz
crusher designed to obva,e all the serious difficulties
POW experienced. This iDveDtion differs radically
from others in TIE fact that the material Is only
broken to 4 moderate degree IN the crusher the final
puIyerization being Effected by grinding between
STOKES ike grain Tie fac. that good burr mill sto les
can lie made eflecuai in grinding the softer kinds OF
quartz is proved by their in treating gypm
and marble dust, pair of stones In our best mi's
grinding 80 bushels Of such material per hour. Mr.
G. arrapges fur such mills around his crasher, and
assumes each capable at moderate estimate OF grnd-
inc Is bushels OF quartz, thus adapting his apparatus
10 the consumption of 60 bushels per hour. The
clus or in To- center is slightly above the mistones
ano consists of kettle or saucersbaped casting, the
bottom of which rises concay in the center at which
point it is supported by strong pivot projecting up
ward from beneath. This cup, which receives Il
peculiar eyraing motion from a vertical shaft above,
conts ns two heavy balls of cast IRON the weight and
irregular momentum of whilh rapidly break AMI
crush the material A foundation OF masonry I'M
derlies the whole apparatus and the pivot Is only OF
such hight will ALLOW toe lower side Of the cup at
all times to rest upon solid supp 1T. This relieves
tie pivot in some degree from the excessive weight,
ard 10 portion of tue centrifugal force which in some
crushers is So Objectionable in this device felt in the
least.
The means proposed for amagam sting is extremely
simple and evidently rapid. The four pairs OF mill
stones are each iDclosed in shallow bath OF mercury
and through this the water and puverzed material are
Above to rise aer It's escape from their pedpheres
Tic centrifugal force of the grinding will insure the
rsrid escape of the lighter material even against
considerable pressure and auy whring motion OF the
nercur, il provided against by introducing suitable
partitions
Both the crushing and the grinding devices appear
to be in the highest degree no. ell and efficient AMI We
commend them to the attention of all parties inter-
ested.
LrrrpoRouGn's LEVER PLAyE.-Mr. VIM. $. Luf-
borough Of Rochester in this State is the inventor of
plane patented in April OF the present year, the
principal features of which consist first in the employ
ueur Of cast-iron instead OF wood to form the main
body Of the tool and second in novel arrangement
for securing and adjusting the iron or casting portion
This plane which is designed to take the place OF those
ordinarily employed by carpenters joiners, ship
vrahts &C.. is of about the same weight but much
thinner than those in use, and the hand of the
workman is consequently brough, down 70 position
much IL arer in line with the resistance This advan-
toee, although reckoned by some experienced work.
men to be of considerable importance, is trifing in
con parison with the facility of adapting the plane to
al kinds Of wood BY the aid of two thumb. screws
acting upon small lever the iron is readily loosened
OF sccued in any required position. Thus the iron
may be much inclined for planning soft and clear stuff
or set in a position much nearer the perpendicular
when TO lie used on hard and grained material
One tool may thus be made to in some degree
the same purposes q whoe set on the present PLAN
Tie manufacture OF these planes has'b en- commenced
at Princeton n. j., ard we may expect soon to find
these tools in frequent if not common use. A friend
familiar with the difficulties arising from the presence
OF adhesive matter suggerts that the iron stock would
from its nature he of great service in working yellow
pine or othergummy wood in awarm climate asst may
be presr med would remain clean under all ordinary
circuu stances.
GEARS IRREGULAR CUTTER.-Mr. Nathaniel Gear,
of GAINESVILLE, o. patented in November of 1853 and
has recently commenced the manufacture in this city
of a modest locking machine covering area only
about four feet by six; but which for its admirable
sin city, extraordinary range Of employment and
perfection, well as rapdty of operation may ehal-
leDge comparis II with any wo ,d-working machine
produced during the eseLt century 1t sticks straight
holdings planes small stuff, reducing pieces TO uni
form width and thickness, tongues and grooves makes
guejonts SC with the facility the irregular
work, while in its peculiar province it planes and
sticks circular and Gothic SASH planes up and molds
brackets and scrolls of the most difficult forms cuts
out tracey ard arches of every imaginable form and
mods the same, shapes and mods block letters Of the
most compound character, planes up and molds pic