Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS2401 A
Publication typeGrant
Publication dateDec 23, 1841
Publication numberUS 2401 A, US 2401A, US-A-2401, US2401 A, US2401A
InventorsGeorge Johnson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
George johnson
US 2401 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)


b bami 0S bu,




Specification of Letters Patent No. 2,401, dated December 28, 1841.

T0 all whom t may concern.'

Be it known that I, GEORGE JOHNSON, of the city of New York, in the county and State of New York, have invented a new and useful improvement in the manner of charging or loading the Siphon, and also a guard or shield against heat to be used with a Single or double Siphon w'here it is intended to use the same for supplying cold liquid from a reservoir adjoining into hot liquid contained in a boiler or other vessel, as also a method of connecting two siphons which I call a double Siphon in such a manner as to be charged or loaded with the same facility as the Single one, which improveniente and arrangements I believe to be new; and I do hereby declare that the following iS a full and exact description.

The charging or loading of the Siphons is effected by means of bulb A. (See draw ings, Figure 4 Sec. 2nd) which is a hollow barrel of varying length and diameter, with its two ends a t tapering or finished in cones, to the one end a (and which I cali the lower end) is attached a barrel or neck communicating with the interior of Said bulb A and except through this barrel or neck b there is no opening to, or into bulb A.

The connecting barrel b is a hollow pipe or neck, one or more inches in length which is made of SuIiCient Size or diameter to fit tightly into the collar c of Siphon B (Fig. 4 Sec. lst) its length is sometimes greater to admit the introduction of a stop cock z' as in single siphons (Figs. l and 2). The bulb A for single siphons is 'made of Sutcient size to contain a quantity of liquid Greater than the capacity of the Siphon, and :tor the double Siphon, is made of Size sufficient to Suit the volume of air in the Siphon after it is immersed in the liquid.

The guard Shield D (See drawings, Fig. 4 Sec. 3rd) is a straight hollow pipe or barrel of varying length and diameter, opened at the top Z but which is closed at the bottom b y means of a metallic plate e, equal to and covering its diameter, which when firmly attached by soldering or brazing to the lower end of this shield forms its base; through the center of this plate e is an opening f which is made of size sufhcient to permit vthe end of the Siphon to pass through which is then soldered or brazed to the plate e, as at letter g (Fig. 4 Se'c. 1st) or made tight and fast by means of a male and female screw; the one Screw being attached to the barrel of Siphon as at g and the other inserted in the opening f of the plate c which forms the base of the Shield. This method, of attaching the Shield, 1S adapted, when it is requisite, to adjust and disconnect the same, in adapting the Siphon to special uses. This guard or shield D (Fig. 4 Sec. 3rd) is designed to be attached to and to cover the discharging end of the Shielded siphons (Figs. l and 4) and is made of suiicient length to rise above the level of the liquid, in Such boiler, or receiver, as to which it may be applied. The shield is also of greater diameter than the Siphon, to admit a column of air between it and the Siphon; the object of this Shield is n to protect the descending column of cold liquid, entering by the dischargino' end of the Siphon, from the heat of the liquid in the boiler, or receiver, to which it may be applied, and thus Secures its full operation, guarding against reaction, which Otherwise would occur, in conformity with the natural law governing the ascent of heated particles of fluid bodies. This guard or Shield iS used upon single as well as double Siphons, its object being to secure the descent of a cold Stream through a hot one, will make it applicable where Such an end is desired.

I form a Single (unshielded) Siphon (see drawings, Fig. 2) for drawing water, acid, oils, &c., by Simply detaching the upper Siphon B (see Fig. 5) of my double Siphon;

adding the stop cock 7c to the discharging end as in Fig. 2, which See.

I form a Single shielded Siphon (See drawings, Fig. 1) for the purpose of supplying cold liquid, to a receiver of hot liquid, by detaching the under Siphon C (see Fig. 5) of my double Siphon and applying my guard or shield D (Fig. Sec. 4th) which is attached to and covers the discharging end of this my single shielded Siphon.

I form my double Siphon (see drawings, Fig. 4) by means of two single Siphons as B and C (Fig. 5) placing the one over the other and fastening them together by means of four oblong' Square pieces of metal It 7L (Fig. 4, Sec. 1st l1. It) to which they are brazed or soldered. The upper or discharging Siphon B is made Shorter in its legsV than the under or charging Siphon C. There is an internal connection, or communication, formed by means of the tube E (Fig. 4, Sec. lst) which is a simple hollow tube, with its length and diameter Suited to the extent and capacity of bulb A and its barrel 7), which tube l5 (See Fig. 5) passes from the lower or charging Siphon C (which it opens into) through the upper Siphon B by or through the center of collar c :and is of Sufficient length to extend nearly to the top of bulb A when the same is adjusted; its upper end m is open, thus forming, through this tube, the means of connection, or communication, between the Siphons; therein permitting' the two Siphons B and C to be loaded in one operation, by means of bulb A.

The charging or loading the single un- Shielded Siphon, Fig. 2, is effected in the following manner: Dip the receivingV end into the liquid to be drawn off; the stop cock 7s being shut, place the barrel Z) of the bulb (A) into collar c, having previously filled the bulb with the same liquid as that to be drawn; the Siphon will then become heated by the liquid which is discharged from the bulb into the Siphon, thereby displacing the air in the Siphon barrel, which air passes into the bulb (A) occupying the former place of the liquid.

The charging or loading the Single Shielded Siphon, Fig. l, is effected through the agency of bulb (A) in the same manner as that before described, by simply immersing the receiving or unshielded end of the Siphon into the liquid of the reservoir, and the dis charging or shielded end into the liquid of' the boiler or receiver.

The charging or loading of the double Siphon, Fig. 4, Sec. lst, is also effected through the agency of the bulb (A) which loads the upper or discharging Siphon B of the double Siphon, in the same manner as that described in single siphon,'and also loads the lower or charging Siphon C of the double Siphon through the agency of tube E as hereinafter described, the descending column of liquid from bulb (A) and upper Siphon B drawing or Sucking the volume of air in the lower or charging' Siphon C through the tube E into the upper part of bulb (A) at which time the liquid from the reservoir is drawn up into and loads the lower or charging Siphon C; when applied to a boiler of hot liquid, the operation of loading this double Siphon is further facilitated by the heat and steam generated in the lower Siphon C and the column of hot liquid passing over by means of the upper or discharging Siphon B. The liquid descending from the bulb (A) into the upper Siphon B and the air ascending from the lower Siphon through tube E into bulb (A) at the Same moment causes the twofold action.

The ends of my lower or charging Siphon C of the double Siphon are cut olf in a Slanting direction; this cutting ofi' the ends in a slanting direction applies equally to single siphons; by this contrivance the siphons will act freely, although the ends might rest on the bottom of the vessels.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. My improved method of charging either single or double siphons, by means of my bulb A.

2. My improved method of shielding either single or double siphons against reaction, by coming in contact with heat, by

`means of my guard or shield D.

And 3. The combination, or manner, in which the bulb A is combined with the double Siphon by means of the said tube E.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5620309 *Jan 27, 1995Apr 15, 1997Todden; Terry J.Fluid pump priming system
US8066027 *Jul 25, 2009Nov 29, 2011Sprague Alden CVacuum activated closed loop system
US8544492 *Nov 27, 2011Oct 1, 2013Alden C. SpragueVacuum activated power tower
US20100193041 *Jul 14, 2009Aug 5, 2010Mag-Life LlcAquarium siphon
US20120068367 *Nov 27, 2011Mar 22, 2012Sprague Alden CVacuum activated power tower