Improvements in Pneumatic or Vacuum Holders for Suction Tubes of Pumps, Syringes, and the like
Year: 1893

page_text: Date of Application, 10th Jan., 1893-Accepted, 8th Apr., 1893
COMPLETE SPECIFICATION.
Improvements in Pneumatic or Vacuum Holders for Suction Tubes
of Pumps, Syringes, and the like.
I, JAMES CONNELL PARKER, of Woodston, in the County of Rooks, and State
of Kansas, United States of America, Gentleman, 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 :-
My invention relates to a pneumatic or vacuum holder or anchor for maintaining
the suction or induction port of any article such as a syriuge hose or pump under-
neath the surface of a fluid to be educed in such manner that said suction port will
be steadily held in the prescribed immersed position without necessitating the
constant care and attention of an operator or assistant to hold the said tube under
the fluid surface:
Wherever it is required to withdraw a fluid from any open receptacle such as a
basin, bowl, or glass into a syringe pump, hose or the like, experience has demon-
strated that the annoyance and inconvenience incident upon the necessity of having
an assistant to hold the mouth or tube of the instrument in the requisite position
underneath the fluid is exceedingly great, and especially has this been the cause of
irritation in the case of those inexperienced or unexpectedly called upon to act by
the exigency or emergency of the occasion, as for example, a physician suddenly
called upon to use a syringe without the attendance of an assistant.
Consequently, it is the essential object of my invention to provide a novel device
whereby the inconvenience above mentioned can be obviated and avoided, and to
that end my invention consists in brief, of an elastic or yielding vacuum cup or
anchor so arranged and constructed that it can be attached in a suitable manner to
the mouth or suction end of any desired article so that the same can be held
securely against the smooth surface of the sides or bottom of the receptacle con-
taining the fluid, and contemporaneously permitting free suction of the liquids into
the mouth of the suction tube thus held in an immersed position.
My invention further consists in certain other details of construction and in
certain other auxiliary parts more fully described hereinafter and specifically pointed
out in the accompanying claims.
I have shown in the accompanying drawings forming a part of this Specification,
my improved device attached removably to the suction tube or mouth of a flexible
hose, which can be supposed to extend to or from a part of any kind of instrument,
such as a syringe pump or other similar device; consequently, it will be manifest
that I contemplate its use and employment in conjunction with any instrument
having a suction terminal or inlet designed to be immersed and held in a fluid
substance.
Referring to the accompanying drawings:
Figure 1 is a view in side elevation diagrammatically illustrating my invention as
attached to the inlet mouth of a flexible hose and serving to hold the same in an
immersed position.
Figure 2 is a detail sectional view of the vacuum holder, showing an improved
manner of attaching the same to the aforesaid suction hose and also illustrating
the lateral induction ports therein to permit the entrance of the fluid there-
through.
Figure 3 is a detail view showing the ring or clip f.
Like letters of reference mark the same or corresponding parts in both views of
he drawings.
A indicates the tube and B the rubber vacuum holder comprising the neck or

page_text: shank a, and the head 6 which is substantially bell-shaped, being concavo-convex in
cross section, as clearly shown in Fig. 2.
The margin or edge c, of the said head is gradually tapered and bevelled to almost
a knife-edge for the purpose of permitting the same to spread and yield under
quick action or pressure of the hand, which will serve to expel the air from the
concave chamber underneath, thus causing the said thin edges of the head to seem-
ingly adhere in air-tight manner to the surface of any smooth surface holding the
fluid; the said holder being held against said smooth surface in fact, by the
exterior fluid or indirect air pressure.
From the point d, up to the ports e, e¹, the neck a, is formed solidly of elastic
substance, preferably rubber, while that portion above the said ports is tubular or
hollow, being utilized as a duct to carry the fluid that is drawn through the ports
into the tube A.
Any form of fastening may be employed to connect the tube A with the holder or
anchor B; such, for instance, as that shown, the construction of which can be seen
at a glance; furthermore, any kind or number of ports may be provided.
In practice, all that is necessary is for the operator to quickly and forcibly
immerse the head b, in the fluid contained in the vessel, the force of contact of the
same with the liquid forcing the air out of the concave chamber, thus when the
edges of the head b, are brought quickly into contact with the smooth surface of
the bottom or sides of the said vessel the fluid pressure upon the exterior of the
head will hold the same fixedly in an anchored position, as shown in Figure 1,
and consequently holding the attached tube or suction end of any attached article
underneath the fluid, so that when necessary suction is established the ports e e¹,
will admit and feed the fluid into and through the tubular duct into the tube A.
By reference to Fig. 2 the exterior edge of the head b, has formed integral
thereon a ring or clip, designed to aid in the removal of the adherent holder since
the operator can remove the latter from its anchored position simply by grasping
the ring f, and pulling off the device from the smooth surface with which it is held
in contact.
It will be understood that it is not essential that the sucker be attached to the
end of the tube, hose or pipe, the operation of the sucker being entirely independent
of the operation of the syringe or pump whose feeder it holds in place.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. A holder for the feed tube of syringes, pumps, etc., comprising an elastic bell-
shaped sucker attached to the inlet ends of such tubes, as specified.
2. In combination with the suction tube of a syringe or similar article, a holder
comprising a hollow shank communicating with the suction tube and having
induction or inlet apertures, and a subjacent hollow bell-shaped sucker adapted to
be held in contact with the bottom or side of a vessel by atmospheric pressure,
substantially as described.
3. In combination with a tube for syringes, etc., a rubber vacuum holder, such
as B, having a ring or clip f, formed integral thereon for the purpose set forth.
Dated this 10th day of January 1893.
W. P. THOMPSON & BOULT,
Agents for the Applicant.