US142323A - blessing - Google Patents

Description

ZSheet-s SheatI...

.I. H. BLESSING.

Steam-Traps.

1 Patented Septe'mber2J s'rarns A t ur JAMES 1 BL ss 0F ALB NY. NEW roar. ASSIGNOB T0 HIMSELF AND FREDERICK TOWNS ND, 0F SAME PLACE- IMPROVEMENT IN STEAM'TRAPS- Specification forming part of Letters Patent No. 142,323, dated September 2,1873; applicatien filed M re 7.1 73- To ail whom it may concern:

Be it known that I, JAMES HENRY BLnss- ING, of Albany, in the county of Albany and State of New York, have invented a new and Improved Steam-Trap; and I do hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings, making part of this specification, in which-- Figure 1, Plate 1, is a front elevation of the trap complete. Fig. 2, Plate 2, is a vertical section taken centrally through the trap, eX- posing to view the interior construction thereof. Fig. 3, Plate 2, is a diametrical section through the upper portion of the trap. Fig, 4, Plate 2, is a top view of the yertically-movable bucket.

Similar letters of reference indicate corresponding parts in the three figures.

This invention relates to a new and improved trap which is designed for conducting back into the boiler the water which results from the condensation of steam in heaters for buildings. My object is to employ an automatically vertically-moving bucket, which is arranged in the receiver for the condensed water, in combination with a tripping device for actuating a steam-inlet valve, as will be hereinafter explained.

The following description of my invention will enable others skilled in the art to understand it.

In the accompanying drawings, Figs. 1 and 2, A represents a flanged cylinder, which has a head, B, bolted tightly on it, and which is arranged above the water-level of a steamboiler, and made of sufficient capacity to receive the water of condensation from steamheaters. Inside of this receiver A is an opentop bucket, T, which is less in its height and diameter than the space in which it works, which allows it to rise and fall a proper distance to actuate the tripping devices on top of the receiver. This bucket has secured centrally to it a vertical rod, R, which passes up through a tubular neck, 0, through a trippinglever box, 0, and through a stufling-box, j, and has an arm, n, rigidly but adjustably secured to it near its upper end,'for a purpose hereinafter explained. The head B on the receiver is. constructed with two tubu lar passages, b N, which communicate with each other through the receiver only. The inlet-passage b is provided with a valve-box, ,G, and an inlet-valve, q, and also with a short pipe, 11 dipping down into the bucket T. The outletpassage b is provided with a valve-box, G in which is an outletwalve, q; andthispassage communicates with the bucket T by means of a pipe, D which is considerably longer than the pipe b The course of the water of condensation from the heating eoils is through the pipes 11 b into the bucket T, and thence out-of this b lpket through pipes b and b into the steam-boiler. The tube 6 is tapped into the center of the head B, and'with an outlet, 0 for a cook, 6 cast to the bottom of a valve-box, O (1. This tube 6 cuts off direct communication between the pipes 11 bl, but forms a free communication between the interior of the receiver A and the interior of V the valve-box 0 o as hown in Figs. '2 and 3;

Steam from the boiler is admitted into the upper portion 0 of the valve-box through a passage, h, and, when a valve, r, therein is lifted, the steam passes through the lower portion 0 of said valve-box, and through the tube 0 into the receiver A, above the water therein, the effect of which will be to close valve q, and force water out of the bucket T through pipes b b and the valve-box G into the boiler. By thus relieving the bucket of its weight of water, it will be buoyed up by the surrounding water in the receiver A. At the same time the steam which was forced into the vessel A will condense and produce a partial vacuum therein, at which time the valve will shut, and the vessel T will again be supplied with water from the heaters through pipes b I) until there is a plenum in the vessel A.

In the chamber 0 of the valve-box is an oscillatin g arm, 11, for lifting the valve 1' at proper times, which arm is formed 011 a stem, 9, extending out through the front plate of the valve-box, and carrying a segment, 9 and a vibrating angular lever, 9 The segment 9 is keyed to the stem 9, and constructed with a lug at each extremity, between which lugs one arm of the lever g plays. This angular lever g plays freely on the stem g, and the FFIGE.

arm which plays between the lugs on segment has a tripping-piece, f, pivoted to it, on the concave end of which rests an anti-friction wheel, 8. This wheel 8 is applied on the lower end of a stem, S, which has vertical play in the tubular port-ion E of a bracket, N, but which is prevented from turning in the tube by a screw, 19, shown in Fig. 3. On the upper end of the vertically-movable stem S is a screw-threaded portion, t, on which is applied a jam-nut, 0, and a spherical weight, W. The axis of the loaded stem S intersects the axis of the oscillating valve-lifting stem g in a ver' tical plane, and the segment is vibrated by the angular lever 1 equidistant from such plane on each side of it. The arm of the angular lever g which does not play between the lugs on segment 9 has a wrist-pin fixed to its extremity, which passes through a verticallyoblon g slot made through a link, D. This link is pivoted to the arm a on the bucketrod R, as shown in Fig. 1.

As before stated, this trap is located above the water-level of the steam-boiler. The pipe which leads from the steam-heaters of a building is attached to the valve-box Gr. The pipe which leads from the trap into the boiler for conducting the water of condensation into the boiler is connected to the valve-box G; and the pipe which supplies steam to the trap from the boiler is connected to the inlet-passage h at the upper part 0 of the valve-box.

To start this trap, it is necessary to fill the receiver A and bucket T with water. The bucket will be then down, as represented in Fig. 2. The cock 0 should be shut and the valve 1' (which I denominate the equalizing valve) open. Steam from the boiler will enter at h and force a portion of the water from the bucket T out of the trap into the boiler. This will cause the bucket to rise in its surrounding fluid uniil the link D engages with its wristpin on one arm of lever 9 The upward movement of the bucket and its rod B will then temporarily cease until the pressure of steam displaces a sufficient weight of water from the bucket to overcome the weight W on the upper end of the stem S, when the bucket will further rise quickly and cause a closure of the steam-valve r. In a few seconds all the steam which was admitted into the trap will condense, and the pressure in the trap will be reduced below that in the heating-coils, which will allow the drip-water to be forced through the influx-pipes b 11 into the bucket T. WVhen a sufficient quantity of water has thus flowed into the bucket it will, by its descent, cause the angular lever g to act on segment g and lift the valve 1* again, thus admitting steam' from the boiler into the trap. The operation will then be continued as above described.

Having described myinvention, what I cla-im as new, and desire to secure by Letters Patent, is

1. The outer case A, long and short pipes 12 b valvular passages 1) b and floating openmouth vessel T, combined and operating sub stantially as described.

2. A tripping device combined with a steaminlet valve, 7', and a floating bucket, T, which

Images