US752067A - Steam-trap - Google Patents

Description

' no.752, 0s7. PATBNTED FEB. 16, 1904.

.. I 1 J.F. HALE.

STEAM TRAP. urmqu-mn Hum mm: 1a. 1903. y I0 110mm, I 2 sums-45mm 1.

- ARMED.

PATENTED 313. 16, 1904.

J. P. HALE.

STEAM TRAP.

APPLIOATIOK FILED JUNE 18. 1903.

3 SHEETS-SHEET 3.

H0 MODEL.

INVEIITGII uub hlzl hxllli l 'llillllrl'l WITNESSES Patented February 16, 1904.

UNITED STATES PATENT Or fice.

JOHN F. HALE, OF CHICAGO, ILLTNOIS, ASSIGNOE TO WARREN WEBSTER AND COMPANY, A CORPORATION .OF NEW JERSEY.

ST M-T AP- srncmrcn'rrow forming part of Letters Patent No. 752,037, dated Februar m, 1904. Application filed June 18,1903. seen no; 162,005. on) modem city of Chicago, county of Cook, State 6f Illinois, haveinvented an Improvement in Steam- Traps, of which the following is a specification.

My invention relates particularly to steamtraps in which the outflow of water of condensation is controlled by a float-valve and the air is allowed to escapethrough a. normally open by-pass which may, if desired, be controlled by a thermostatic valve. In such'traps difficulty has been experienced owing to the liability of the water of condensation when there is a large flow closing up the air passage-way before the float operates to open the discharge-outlet.

It is one of the objects of my invention to overcome this difficulty, and this I accomplish by providing the body of the trap with an in ternal partition adjacent to the inlet end, forming a; chamber communicating with the inlet and having at its upper portion an air-vent into the upper portion of the interior of the trap-body and at its lower portion a wateropening into the lower portion thereof. By this means separate inlets for the water and air are aiforded into the body of the trap, and the air has at all times a clear unobstructed passage-way to the outlet.

Another object of my invention is to separate and discharge the sediment from the water passing into the-body of the trap; This is efiected by arranging a screen in the wateropening in the lower" portion of the chamber" and providing it with adischarge-outlet fitted with a removable cap. As all the water must pass through this chamber before entering the body of the trap, the sedimcntwill be retained therein and can readily be discharged through the discharge-outlet when the cap is. removed.

In the drawings, Figural is a'longitudinal. vertical sectional View of a steam-trap cmbodying my invention, and Fig. 2. is a transverse vertical sectional view of the same on the line A A of Fig. 1.

a is the body of the trap, having the inlet a" and outlet a a 18 the cap or cover.

Z1 is the float-controlled valve-piece, which controls the outlet a3. As shown, it is a tubu lar piece guided in a hollow cage 0,- which is screwed'into the outlet a and carries the valveseat 0'. The valve-piece b isoperated by a float-lever (1, extending through a transverse hollow guide E in the valve-piece and fulcrumed, as at d, to an extension on the cage.

The free end of the lever'd carries the float f,

and as the float rises and falls under the ac- -tion of the water the lever cl,"bearing on- I the walls of the guide E, opens or closes the valvepiece 6.

The upper end of the cage. 0 carries a thermostatic valve device. As shown, this consists of a cylindrical shell 9, carried by a thimble h, screwed into the upper open end ofthe cage, the perforated plugs '5 t" in the top and bottom of the shell and the composition ex' panding-piece j between the plugs adapted when expanded to close the aperture in the upper plug. The thermostatic valve device projects through an openinga in the cap or cover a and is inclosed by a' bonnet l.

"WVhen the thermostatic' expanding-piece j is contracted and the valve-piece b is closed, the

air may pass freely through the opening is in the plug a, thence down the tubular shell'g through the openings min the lower plug 71',

and out through the tubular valve-piece Z tothe outlet (1 Vv hen, however, steam reaches the piece 3' and cxpandsit, the passage-way is is closed.

So far as-the trap has beendescribed it is of known construction and has been described simply for the purpose of rendering my iin' provements more intelligible. With such traps as heretofore constructed difficulty has been experienced in collecting the dirtand sediment carried into the trap with the water of condensation and enabling it to be removed. For this purpose I provide the inlet end of the trap with an internal inlet chamberor passage-way 7:, into which the inlet a opens at the upper end and from which the water passes into the body of the trap through a screened opening from the lower portion. The screen 0, which is shown as a perforated'plate, mayv be held in its seat about the opening 11' by a spring p and screw-cap 9' in the lower part of the chamber n. All the water entering the trap must pass through this chamber or passage-way n, and the solid matter will be ar- 5 rested by the screen and collected in the bottom of the chamber n, from which it may be .discharged on the removal of the cap Another difiiculty which has heretofore existed in traps of this character has been in prevent- :0 ing the accumulation of water of condensation from forming a water seal for the air. obviated by the formation of an air-opening s in the upper .part of the chamber n above the inlet a. The body of the trap is preferably I enlarged or made deeper at its inlet end, so as to form a well for the float. This will enable the float to operate and discharge the water before the air passage-way can become closed and will insure the air passage '-way beingalways kept open except when the thermostatic plug j is closed on its seat by the action of the steam.

What I claim as new, and desire to secure by Letters Patent, is as follows:

2 5 1. In a steam-trap of the character described, the combination of the trap-body having an inlet and an outlet, a float-controlled valve for controlling said outlet, said trap being further provided with an air by-pass about said valve between the outlet and the upper portion of the interior of the trap-body, the trap-body being provided adjacenttothe inlet end with an internal partition forming a chamber communicating with the inlet and having at its 3 5 upper portion an air-vent into the upper port1on of the interior of the trap-body and at its lower portion a water-opening into the lower portion thereof.

2. In a steam-trap of the character described, the combination of the trap-body having" an inlet and an outlet, a float-controlled valve for controlling said outlet, said trap being fur ther provided with an air by-pass about said valve between the outlet and the upper portion of the interior of the trap-body, the trapbodybeing provided adjacent to the inlet end with an internal partition forming achamber communicating with the inlet-and having at its upper portion an air-vent into the upper portion of the interior of the trap-body and at its lower portion, a water-opening into the lower portion thereof, said chamber being further provided with an opening for the discharge of sediment, and a removable cap for said opening.

3. In a steam-trap of the character described, the combination of the trap-body having an inlet and an outlet, a float-controlled valve for controlling said outlet, said trap being further provided with an air'by-pass about said This is I vsaoev valve between the outlet and the upper portion of the interior of" the trap-body, the trapbody being provided adjacent to the inlet end with an internal partition forming a chamber communicating with the inlet and having at 5 its upper portion an air-vent into the upper portion of the interior of the trap-body and at its lower portion a water-opening into the lower portion thereof, and ascreen located in said water-opening. 7o

4. In a steam-trap of the character described, the combination of the trap-body having an inlet and an outlet, a float-controlled valve for controlling said outlet, said trap being further provided with an air by-pass about said .75 valve between the outlet and the upper por tion of the interior of the trap-body, the trapbody being provided adjacent to the inlet end with aninternal partition forming a chamber communicating with the inlet and having at its upper portion an air-vent into the upper portion of the interior of the trap-body and at its lower portion a water-opening into the lower portion thereof, said chamber being further provided with an opening for the dis charge of sediment, a removable cap for said opening for the discharge of sediment, a re-- movablev screen in said water-opening, and a spring between said removable cap and screen for retaining the screw in place.

5. In a steam-trap for the purpose described, the trap-body having an inlet and an outlet and provided adjacent to its inlet end with an internal partition forming a chamber communicating with the inlet and having at its 95 upper portion anair-vent into the upper portion of the interior of the trap-body and at its lower portion a water-opening into the lower portion thereof, the body of said partition be- .tweensaid air-vent and water-opening being I closed.

6. In a steam-trap for the purpose described, the trap-body having an inlet and an outlet and provided adjacent to its inlet end with an internal partition forming a chamber com- 5 municating with the inlet and having at its upper portion an air-vent into the upper portion of the interior of the trap-body and at its lower portion a water-opening into the lower portion thereof, the body of said partition be- I I0 tween the air-vent and water-opening being closed and a discharge-opening for sediment adjacent to said water-opening, and a removable cap for said discharge-opening.

In testimony of which invention I hereunto I 5 set my hand.

, JOHN F. HALE. Witnesses:

. JAs. H. DAVIS, A. J. SIMMoNs.

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