US1117626A

US1117626A - Injector.

Info

Publication number: US1117626A
Application number: US45973708A
Authority: US
Inventors: Edwin M Bassler
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-10-27
Filing date: 1908-10-27
Publication date: 1914-11-17
Anticipated expiration: 1931-11-17

Description

E. M. BASSLBR.

INJECTOR.

APPLICATION FILED OUT. 27, 1908. 1,1 1 7,626, Patented N0v.17,1914.

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ifimeasasz' J'iz/zzzzfaz THE NORRIS PETERS 60.. PHOTv-LITHQ. WASHING ro- .D. C.

if s TED STATE EDWIN M. BASSLER, OF CHICAGO, ILLI NOIS.

INJECTOR.

Specification of Letters Patent.

Patented Nov. 17, 1914.

Application filed October 27, 1908. Serial No. 459,737.

To all whom it may concern:

Be it known that I, EDWIN M. BASSLER, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Injectors, of which the following is a specification.

This invention relates to injectors and relates particularly to injectors designed and adapted for creating a current of air, or other gaseous fluid, to produce both a suction and a blast, thereby tending to create a vacuum at one point and compression of said gaseous fluid at another point.

The primary object of the invention is to provide an injector of this type constructed and arranged to utilize a liquid under pressure, particularly water from the mains of a waterworks system, for thus producing a current of air, preferably by connecting said injector directly to a faucet such as is ordinarily used for drawing water from water mains for domestic use.

To this end an injector of my invention consists of the various features, combinations of features and details of construction hereinafter described and claimed.

In the accompanying drawing, in which my invention is fully illustratedFigure 1 is a central, vertical sectional view of my improved injector, shown as embodied in a vacuum cleaning system, the dust or dirt receptacle and the pipe connections of which are shown in side elevation; and Fig. 2 is a top plan view of my improved injector, the parts thereof above the upper partition being removed.

For purposes of concrete illustration, I have, in the accompanying drawing, shown my improved injector as applied for use in a vacuum cleaning system. It is, however, adapted for a wide range of application and I, therefore, desire to have it clearly understood that the specific application shown is in no way intended as a limitation.

Referring now to the drawing. 1 designates the shell of my improved injector, the sides and ends of which are closed, except for pipe connections as presently explained, and the interior of which is divided into upper, middle and lower compartments 2, 3 and 4, respectively, by suitable transverse partitions 5 and 6.

For convenience in assembling and to render the interior of the injector rea dilv accessible for purposes of repairs and cleaning,

the shell 1 is made in

separate sections

7, 8 and 9, which are coextensive, respectively, with the compartments 2, 3 and 4, said sections being secured together to form a unitary structure, by bolts, or the like, inserted through flanges formed on the adjacent ends of said sections. As shown, also, the edges of the partitions 5 and 6 extend between the connected flanges on the sections of said shell and are secured in position by the bolts which connect said flanges.

Secured in the upper partition 5 are a plurality of jet-nozzles 10, the upper ends of which are in open communication with the upper compartment 2 of the injector and the lower discharge ends of which extend into the open ends of induction tubes 11 secured in the lower partition 6 and which extend downwardly into the lower compartment 4t of the injector, the relation being such that a space will be formed between the lower ends of the jet-nozzles l0 and the inner sides of the induction tubes 11 sufficient to permit the free passage of air or other gaseous fluid.

To provide for air and other gaseous fluid entering the induction tube 11 freely under the influence of a jet of water or other liquid discharged into the same from the jet-nozzles 10, the upper ends of said induction tube are flared, as shown at 12, said induction tubes being contracted just below the discharge ends of the jet-nozzles 10, as shown at 13, so that the jets from said jet-nozzles will entirely fill the cross section thereof, thus insuring the highest efficiency of said injector. Preferably, also the lower ends of said induction tube are flared downwardly, as shown at 14, thus permitting expansion of the air or other gaseous fluid passing through the same and reducing the friction thereof, whereby all choking is prevented in said induction tubes. Also, in order to reduce friction in the jet-nozzles 10. which would tend to reduce the velocity of the. jets therefrom, said jet-nozzles are made larger at their upper ends than at their lower ends.

The jet-nozzles 10 and the induction tubes 11 may be made of any suitable material, being, however, preferably made of annealed glass. Said jet-nozzles 10 and the induction tubes 11 may be secured in the partitions 5 and 6, respectively, in any desired manner, being preferably cemented therein in accordance with any approved practice.

As regards the multiplicity of jet nozzles 10 and the induction tubes 11, the principle of my improved injector is that the efiiciency of the injector depends upon the aggregate surface areas of the jets and, as the surface areas of a multiplicity of small jets will aggregate much more than the surface area of a single jet proportioned for the discharge of the same volume of water, it is obvious that the more the jets are broken up, the greater will be the efiiciency of the injector. I have discovered, also, that to produce a current of air sufficient for any practical purpose, it is necessary to provide a seal for the lower ends of the induction tubes 11. As shown, said induction tubes are thus sealed by means ofthe water discharged from the jet-nozzles 10, which is permitted to accumulate in a pan 15 supported below said induction tubes, the top of which extends slightly above the lower ends of said tubes. Thus, when the water rises in said pan 15 so as to overflow the same, the lower ends of said induction tubes will dip slightly into the same and willbe effectually sealed thereby. The surplus water will merely overflow said pan and run to waste in the manner presently described.

In the preferable construction shown, the

pan 15 is supported upon standards 16, the

lower ends of which are permanently secured to the removable lower head 17 of the shell 1 of the injector, thus providing for conveniently removing said pan, together with adjunctive parts, with the head 17, for purposes of repairs and cleaning, and the like. This construction also provides for conveniently assembling said parts before introducing the same into the apparatus. The bottom of the pan 1.5 preferably declines toward a drain opening 18 in the center thereof.

The pipe connections of my improved injector comprise

openings

19, 20, 21 and 22 formed in the shell of the casing and which communicate, respectively, the opening 19 with the upper compartment 2, the opening 20 with the middle compartment 3, and the openings 21 and 22 with the lower compartment 4. The opening 19 is adapted to be connected to a suitable source of supply of liquid under pressure, as with a water faucet, not shown; the opening 20 is the admission openin through which air or other gaseous fluidis admitted to the injector; the opening 21 is the discharge opening through which the current of air or other gaseous fluid is discharged from the injector; and the opening 22 is a water discharge opening through which the water which overflows the pan 15 may escape from the injector. To facilitate making pipe and faucet connections thereto, all of said openings are preferably screw threaded.

To prevent objects which may enter the compartment 2 through the liquid supply thus providing for creating an air pressure.

in the lower compartment 4 of the injector,

I provide a water seal adapted for closing said opening.

As shown, said water seal consists of cylinders 24 and 25 having closed sides, the cylinder 24 being secured directly to the bottom of the pan15 and extending downwardly around the water discharge opening 22 to within a short distance of the lower head 17 of the injector, and the cylinder 25 being secured directly to the lower head 17 of the injector surrounding the water discharge opening 22 and extending upwardly within the cylinder 24 to within a short distance of the bottom of the pan 15. With this construction, it is obvious that, as the water overflows the pan 15, it will accu mulate in the bottom of the shell 1 until it overflows the top of the inner cylinder 25. With this construction it is obvious that a water column will be formed in the space between the cvlinders 24 and 25 equal'in height to the distance which the ends of the cylinders 24 and 25 overlap, thus providing for the generation in the lower chamber'4 of the injector of an air pressure corresponding to the height of the water column thus formed. The water seal just described is very desirable also where said injector is used for ventilating purposes to prevent sewer gas and the like entering the injector through the water discharge opening 22.

When intended for use for ventilating purposes, it is also desirable to provide a seal for the vent opening 18 in the bottom of the pan 15. This can be effected in a simple manner by securing a short pipe in the drain opening 18 and securing a cup 26 over the end of the same so that the top of the cup will extend above the lower end of said pipe,

in a familiar manner. The drain opening 18 is very small as compared with theaggregate size of the jet-nozzles, so as not to interfere with the formation of water seals as described.

To prevent the accumulation of dust and dirt on the exterior surfaces of thejet-noz- ,zles 10 in the operation of the machine,

means are provided for washing said jetno-zzles. As shown, said means consist of jet-nozzles 27 communicating with the upper compartment 2 of the injector and which discharge directly into the compartment 3, adjacent to its upper end. The current of air in said chamber 3 being inwardly through said jet-nozzles 10, will operate to draw the water jets inwardly into contact with the outer surfaces of said jet-nozzles, thus washing the same and keeping the same clean at all times.

In the specific application of my injector shown in the drawings, the air supply open- I ing of the injector is connected by a pipe 28 directly with the separating tank or chamber, indicated as a who-1e by A, of a vacuum cleaning system, said separating tank or chamber A being provided with an admission pipe 29, to which a hose, not shown, is adapted to be connected, a suitable suction nozzle of any approved type, likewise not shown, being connected to the outer end of said hose. Said separating tank or chamber A may be of any desired or approved construction, but as the specific construction or form thereof is immaterial so far as the present invention is concerned, the construction thereof is not shown in detail.

I claim 1. In an injector, the combination of a shell, upper and lower partitions therein which divide the interior of said shell into upper, middle and lower compartments, the upper of said compartments being provided with an opening adapted for connectlon with a source of supply of liquid under pressure, the middle compartment with an air admission opening and the lower compartment with an air discharge opening and with a water discharge opening, jet-nozzles which extend through the upper partition, the upper ends of which are in open communication with the upper compartment of the injector, induction tubes which extend through the lower partition, the upper ends of which are in open communication with the middle chamber of the injector, the relation being such that each of said nozzles will discharge into the upper end of an induction tube, means for sealing the lower ends of said induction tubes and gases from entering the lower ends thereof, and means for sealing the water discharge opening from the injector, said means comprising cylinders having closed sides, the upper end of one of said cylinders being closed and the lower end thereof terminating short of the bottom of the injector and the other of said cylinders being secured directly to the bot tom of the injector shell and extending upwardly within the other, so that the adjacent ends of said cylinders will overlap.

2. In an injector, the combination of a shell, upper and lower partitions therein which divide the interior of said shell into upper, middle and lower compartments, the upper of said compartments being provided with an opening adapted for connection with a source of supply of liquid under pressure, the middle compartment with an air admission opening and the lower compartment with an air discharge opening and with a water discharge opening, jet-nozzles which extend through the upper partition, the upper ends of which are in open communication with the upper compartment of the injector, induction tubes which extend through the lower partition, the upper ends of which are in open communication with the middle chamber of the injector, the relation being such that each of said nozzles will discharge into the upper end of an induction tube, means for sealing the lower ends of said induction tubes, said means consisting of a pan supported beneath said induction tubes the top of which extends above the lower ends of said induction tubes,

whereby when water overflows said pan the level thereof will be above the lower ends of said tubes, and a seal for the water discharge opening from the injector, said seal comprising cylinders having closed sides, one attached directly to the bottom of the pan forming the seal for the induction tubes and extending downwardly therefrom and the other attached directly to the'bottom of the injector shell and extending upwardly within the cylinder attached to said pan, so that the adjacent ends of said cylinders will overlap.

3. In an injector, the combination of a shell, upper and lower partitions therein which divide the interior of said shell into upper, middle and lower compartments, the upper of said compartments being provided with an opening adapted for connection with a source of supply of liquid under pressure, the middle compartment with an air admission opening and the lower compartment with an air discharge opening and with a water discharge opening, jet-nozzles which extend through the upper partition, the upper ends of which are in open communication with the upper compartment of the injector, induction tubes which extend through the lower partition, the upper ends of which are in open communication with the middle chamber of the injector, the relation being such that each of said nozzles will discharge into the upper end of an induction tube, means for sealing the lower ends of said induction tubes, said means consisting of a pan supported beneath said induction tubes at a considerable distance above the bottom of the injector shell, the top of which extends above the lower ends of said induction tubes, whereby when water overflows said pan, the level thereof will be above the lower ends of said tubes and a water seal for the water discharge opening from the injector, said seal comprising cylinders having closed sides, one attached directly to the bottom of the pan forming the seal of the induction tubes and extending downwardly therefrom and the other attached directly to the bottom of the injector shell and extending upwardly within the cylinder attached to said pan, the adj acent' ends of said cylinders overlapping whereby a water column, corresponding to a desired pressure in the lower compartment of the injector will be formed in the space between said cylinders in the operation of the injector.

4. In an injector, the combination of a shell, upper and lower partitions therein which divide the interior of said shell into upper, middle and lower compartments, the upper of said compartments being provided with an opening adapted for connection with a source of supply of liquid under pressure, the middle compartment with an air admission opening and the lower compartment with an air discharge opening and with a water discharge opening, jet-nozzles which extend through the upper partition, the upper ends of which are in open communication with the upper compartment of the injector, induction tubes which extend through the lower partition, the upper ends of which are in open communication with the middle chamber of the injector, the relationbeing such that each of said nozzles will discharge into the upper end of an induction tube, means for sealing the lower ends of said induction tubes, said means consisting of a pan supported beneath said induction tubes, the top of which extends above the lower ends of said induction tubes whereby, when water overflows said pan the level thereof will be above the lower ends of said tubes, said pan being provided with a drain opening in its bottom, and means for sealing said drain opening and the water discharge opening from the injector.

5. In an injector, the combination of a shell, upper and lower partitions therein which divide the interior of said shell into upper, middle and lower compartments, the upper of said compartments being provided with an opening adapted for connection with a source of supply of liquid under pressure, the middle compartment with an air admission opening and the lower compartment with an air and water discharge opening, jet-nozzles which extend through the.

upper partition, the upper ends of which are in open communication with the upper compartment of the injector, induction tubes which extend through the lower partition, the upper ends of which are in open communication with the middle chamber of the injector, the relation being such that each of said nozzles will discharge into the upper end of an induction tube, and jet nozzles which extend through the upper partition of the injector adapted to discharge jets of water directly into the upper end of the middle compartment of the injector to wash the exterior surfaces of the jet-nozzles.

In testimony, that I claim the foregoing as my invention, I aflix my signature in presence of two subscribing witnesses, this 24th day of October, A. D. 1908.

ED WIN M. BASSLER.

Witnesses:

G. M. ELLINGEN, K. A. Cos'rELLo.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.