Improvements in Pumps for Medical and Surgical Laboratories or other purposes.
Year: 1889

page_text: Date of Application, 28th Dec., 1889
Complete Specification Left, 28th Aug., 1890-Accepted, 29th Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in Pumps for Medical and Surgical Laboratories
or other purposes.
1, CHARLES BREUILLARD, Doctor of Medicine, of 30, Boulevard Saint-Germain,
Paris, in the Republic of France, do hereby declare the nature of this invention to be
as follows:-
This invention relates chiefly to improvements to pumps used in medical and
surgical laboratories, but is also applicable for other purposes and has for its object
to make the same more efficient and easier to operate and less subject to repairs than
heretofore has been the case.
To this end I employ a small pump formed with an oscillating cylinder having a
glass or metal valve face formed thereon arranged in contact with a stationary plate.
The said cylinder and stationary plate are fixed on a common bed plate and the valve
face and stationary plate kept in contact with each other by means of a spring
employed on the cylinder pivot. The said valve face is formed with an inlet and
outlet port and the stationary plate with two inlet and two outlet ports, which
through the oscillation of the cylinder are alternately brought into communication
with each other. The outlet ports in the stationary plate are in communication with
a pipe furnished or formed with one or more nozzles for the reception of india
rubber piping.
This pump is placed in a box furnished with suitable holes to respectively permit
of actuating the pump and connecting the rubber piping thereto or inserting the
nozzles. The cover of this box is formed with a number of compartiments to receivo
the various instruments necessary for drawing or forcing, an intermittent vessel
being employed, in most cases, which is connected to the pump and the mouth piece
by means of two pipes.
In order to keep impurities out of the pump I employ in connection with the air
iulet thereof a filter, through which the ingoing air is caused to pass.
ath of Duvambar 1880
F. BOSSHARDT & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
Improvements in Pumps for Medical and Surgical Laboratories
or other purposes.
I, CHARLES BREUILLARD, Doctor of Medicine, of 30 Boulevard Saint Germain,
Paris, in the Republic of France, do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
This invention relates chiefly to improvements to pumps used in medical and
surgical laboratories, but is also applicable for other purposes and has for its object
to make the same more efficient and easier to operate and less subject to repairs
than heretofore has been the case.
And in order that my invention may be more fully understood I have caused to be
appended hereunto two sheets of drawings marked with letters of reference indicating
like parts in the various figures.
haal viaw of the nonoratus

page_text: Figs. 6, 7 & 8, are enlarged longitudinal sections of the cylinder, shewing the
cylinder ports in relation to the inlet ports in the different positions.
Fig. 9 is a cross section of the cylinder and the plates b, c through line A-B of
Fig. 6.
Figure 10 is a longitudinal section of the cylinder showing a modified form of
the plates b, c, being round instead of square.
"
q
The
In carrying out my invention and referring to the figures generally the cylinder a
is formed with, a glass or metal valve face or plate 6, which is in contact with and
moves on another stationary plate e projecting from a bed plate d. The bed plate d
may be of wood, in which case the plate c is fixed thereto by means of screws.
cylinder a is arranged to be oscillated in a pedestal n by means of a crank i, rod i¹
and crank handle, the cylinder plate being kept in contact with the plate by
means of a spring, as shown in Fig. 3, or screws m, m', as shown in Fig. 9. The
piston a may be of the usual construction, solid or hollow or formed for a
mercury packing. The crank handle, see Fig. 5, may be readily detached from
the shaft k of the crank by forming the crank handle i hollow and with a slot p.
which latter receives a pin fixed on the shaft k. To prevent the crank handle
leaving the shaft & the free end thereof is formed with an annular groove and the
crank handle has attached a springs furnished with a button and pin r, which
latter through the spring s enters the said annular groove q In taking the crank
handle off the shaft the button s¹ is depressed and the pin thereby caused to.
leave the annular groove and disengage the shaft. k. The crank handle
may be
replaced by or have attached a crank rod. In most cases for forcing or drawing the
air or liquid, an intermediate vessel, hermetically closed and having two pipes, is
employed. To prevent the air or liquid introducing foreign matter into the pump,
which might damage the same, a cylindrical or other shaped filter t is employed, see
Fig. 4. Each end thereof is formed with an inlet t, 2 and furnished with a very
fine wire gauze t³, which prevents the least particle of foreign matter, such as dust
from entering the apparatus. The valve face or cylinder plate b is formed with two
ports, serving alternately as inlet and outlet ports and the stationary plate
with two inlet ports e¹ & e³ and two outlet ports e & e, which through the oscillation
of the cylinder a are alternately brought into communication with each other. The
outlet ports e & e² in the stationary plate care in communication with a pipe j
furnished or formed, with one or more nozzles j¹ for the reception of india-rubber
piping or communication with the atmosphere. The stationary plate c is formed with
a pipe g see Figs. 1 & 2, Sheet 1, and Figs. 6, 7, 8, 9 & 10, Sheet II, the outer end
of which is shaped to receive a conical tube or nozzle h, see Figs. 1 & 2, Sheet I,
which may be fitted thereto by forming the respective end with a thread and flange v.
The said pipe g, see Figs. 6, 7, 8, 9 & 10, Sheet II, communicates with the ports e¹,
and serves for the inlet of the air or liquid and the creation of a vacuum or pressure
in the apparatus. The suction or pressure is produced in the direction in which the
crank handle is turned to impart motion to the piston a' as shown by the arrow.
The position of the cylinder a indicated in Fig. 6 shews communication cut off
between the ports e, e¹, e², e³ of the fixed plate c and the ports ff of the cylinder
plate b. In turning the crank handle in the direction of the arrow, the cylinder a
oscillates and moves the piston a¹ into position, shown in Fig. 7, and thus draws air
through the ports f&e³, which at that time are communicating with each other.
The air contained in the raised part of the cylinder a is then forced out of the same
through the ports, e which are then in communication with each other. In con-
tinuing the oscillation of the cylinder a through the crank handle and bringing
into position shown in Fig. 8, communication is cut off between ports e & f, e³ & ƒ¹
and established between ports f, e¹ & f¹, e². On the return stroke of the piston a¹ it
creates a suction through ports f, e¹ and forces the air contained in the lower part of
the cylinder through ports f', e². The different positions of the cylinder a and
piston a during one revolution of the crank handle 2, are thus successively that of
Figs. 6, 7, 6, 8, 6.
e8
The apparatus described and termed "A spiro injector" for the use of the doctors

page_text: and in laboratories, is enclosed in a box o provided with two holes, one for the
purpose of fixing the crank handle and the other for admittance of air or liquid.
If desired the box o may be replaced by frames and the cover thereof arranged to
hold the various instruments which may be required.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim, is:
* In pumps for medical and surgical laboratories or other purposes."
1st. The general combination and construction of parts operating substantially as
and for the purpose specified.
2nd. The combination of an oscillating cylinder a formed with a valve face or
plate 6 having ports f,, with a stationary plate e formed with ports e, e¹, e³, e* and
a pipe g furnished with a conical tube serving for the suction of air and a pipe j
and nozzlej serving for the return of the air, substantially as set forth.
3rd. The combination with the oscillating cylinder a, specified in the preceding
claim, of a filter t, substantially as set forth."
4th. The method and means for retaining the plates & c in close contact,
substantially as described and with reference to Figs. 3 & 9.
5th. The crank shaft formed with an annular groovey and furnished with a
pin in combination with the hollow crank handle formed with a slot p to receive the
pin and having attached a springs, s' and pin r, to enter the annular groove q,
substantially as and for the purpose set forth.
Dated this 27th day of August 1890.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.