NEW INVENTIONS. 
81 
portable, contains the stamps ; by passing the letter from left to right, and 
pressing the piston as aforesaid, the stamp is fixed firmly and securely to 
the letter. 
Tobacco-Smoking Appliances. — Mr . W. A. Little , inventor. — In per- 
forming this invention the inventor prepares a conical or other shaped 
tube of paper, tobacco-leaf, or other suitable substance, and fills it with a 
filtering material. Into one end of this tube he inserts the “ butt,” or 
mouth-end of the cigar, attaching it in that position by gumming or other- 
wise, securely binding it previously to its sale ; or he prepares the filtering 
tube so as to be saleable and portable as a separate article attachable to 
the cigar by the person about to use it. In the latter case, the inner 
surface of the end of the tube intended to receive the cigar may be coated 
with adhesive matter, so that by wetting the end of the cigar it may 
adhere on insertion. As a filtering material he uses charcoal powder, 
cotton, wool, flax, hemp, or other suitable powdered or fibrous material, or 
simply a roll or strips of a suitable kind of cloth or coarse paper. These 
materials may be used separately or combined, and may, if desired, be 
impregnated with perfume, and with chemicals possessing affinity for the 
empyreumatic impurities of the tobacco-smoke. 
Tobacco-Pipes.— Mr. E. Strangman , patentee. — According to one modi- 
fication for carrying out this invention, the patentee makes the pipe with 
a movable thimble, with a flange at the top, and perforated at the bottom, 
such thimble being placed in the bowl, and intended to contain the tobacco 
to be smoked ; he fills the space between the thimble and the bowl of the 
pipe with a suitable filtering and absorbent material, so that the smoke 
in passing from the ignited tobacco to the mouth of the smoker is com- 
pelled to pass through the filtering and absorbent material, and thus 
becomes purified. 
Book-Holdehs. — Mr. J. J. Lemon, patentee. — These improvements in 
the construction of book- trays or holders have for their object the holding 
in position of a series of books, and their conveyance from place to place. 
The improvements consist in forming a series of levers, springs, and guide- 
rods, by means of which the slide or slides and flaps of the tray can be 
opened for the purpose of inserting or removing books. For operating on 
double slides, the levers are formed somewhat in the shape of a pair of 
scissors, and jointed in a similar way by a pin passing through the slide 
or edge of the tray, their handles extending outside the tra}^. Attached 
to the inner ends of these levers are rods working in slots at the under side 
of the tray, and moving the slides accordingly. In order to bring the 
slides back after the removal or replacement of a book, springs are attached 
from two corners of the tray to these levers. These springs may consist of 
spiral wire, flat curvilinear steel, or other known form of spring, suitable 
for the purpose ; but for a single-acting slide oniy one lever will be neces- 
sary with one spring attached. 
Anti-Garotte Knives. — Messrs. J. S. & S. Hancock, inventors. — This 
knife is made with two dagger-blades, one at each end, both acted upon 
by one spring, which locks them when in the open position, the blades 
being reseated, when it is required to close them, by raising the end of the 
spring out of the notch in the blade. Or a catch may be used, acted on 
VOL. Ill, — NO. IX. G 
