US307480A - luttgens - Google Patents

Description

(No Model.)

. H. A. LUTTGENS.

LOGOMOTIVE BOILER.

NO. 307,480. K Patented NOV. 4, 1884.

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HENRY A. LUTTGEJS, OF PATERSO tOGERS LOCOMOTIVE AND MA N, N EV JERSEY, ASSIGrNOR TO THE CHINE VORKS, OFSAME PLACE.

LOCOFWOTIVE-BOILER.

SPECIFICATIGN forming part of Letters Patent ivo. 307,480, dated Neve-meer e, 1.884.

Application [iled June 25, 1884. (No model.)

To all whom, it may concern/.-

Be it known that I, HENRY A. LUr'renNs, of Paterson, Passaic county, in the State of New Jersey, have invented certain new and useful Improvements in Locomotive-Boilers, of which the following is a specification.

The invention applies to that class oi' locomotives in which a feed-water heater is employed having tubes through which are conducted the hot gaseous products of combustion after they have been discharged from the boiler-tubes. Such heaters add materially to the economy of the production of steam; but it is found that they somewhat retard the draft.

One obj ect oi my invention is to reduce such retardation. I provide a light and peculiarlyformed plate, which I term a deileetor, made in several sections bolted together, which is applied on the side ofthe heater which receives the hot gases. It directs them into the several tubes. It is so formed as to present angular ridges instead of the ordinary plane tube sheet surfaces between the mouths ol" the several tubes. rllhese ridges divide the currents of gases and lead them by gradual deiiection into the several tubes.

A difficulty is experienced with heaters as ordinarily used, in the fact that the solid particles oi" coal and cinders which move with the escaping gases through the boiler-tubes are liable to strike against the flat face of the heater between the tubes and rebound with so much force that they fall to the bottom ot' the space and accumulate there. It is difiicult, even with a very strong dral't, to again lift such particles ot' solid matter alter they have become tightly packed in the bottom. My dei'lector avoids this evil Vby presenting no ilat surfaces against which the sparks or solid matter can strike and thus rebound. The entire spaces between the several tubes are covered bythe sharp ridges, andthe solid matter, striking either iaee ot' a ridge, is led directly into one of the tubes and moves through it. On

emerging from the tubes of the heater the solid matter is deflected upward by the ordinary means and moves with the current of gases out through the stack. Y

The accompanying drawings form a part of Spccilication, and represent what I conthis sider the best means of carrying out the invention.

Figure 1 is a longitudinal section of a locomotive-boiler with my delector in place. Fig.l 2 is a cross-section. The remaining figures are on a larger scale. Fig. 3 is a face view of a portion. Fig. 4. is a corresponding crosssection.

Similar letters of reference indicate like parts in all the figures.

A is the cylindrical shell or barrel of the boiler.

A is a portion of the boiler proper'. a are the tubes thereof, and a is the tube-sheet.

B is the heater; Z), the tubes 5 and b', the tubesheet thereof, which is presented toward the approaching gases.

M is aconnecti11g-cylinder, formed of one or more pieces of stout sheet metal, shown as having a diameter a little greater than the barrel A or the heater D; but this is not material. It is provided withv a man-hole, m, having a elose-iitting cover, h

D is my del-lector, certain portions being designated, when necessary, by additional marks, as D D2. It is made in two sections to facilitate its introduction and removal. Each section has lugs D', which receive bolts H, confining the sections rigidly together to serve as one. It may be made in more than two sections, the parts being rigidly secured together after they are in place.

Holes near the edges of my delicctor receive studs E, set in the 'i'ace of the heater near the edges. Split keys G, inserted in the slots in these studs, hold the dellcetor firmly in position.

The dellector may be a thin casting of iron, or preferably steel. 1t is formed with holes d, exactly coinciding on one side in size and position with the tubesb of the heater. The holes liare toward the other side and become graduallysix-sided. They are extended in this form until they merge into each other. The form is such that the partitions between the several holes are ridges thick on the face toward the heater and diminishing to nothing on the other face of the defiector. These ridges are niade hollow for lightness. In other words, the spaces between the tubes are ridges of il-sec- IOO tion presented with their sharp edges toward the incoming gases. The other face of the device presents circular holes matching to the tubes of the heater. Between these holes are cavities of Vsection.

Whenever it shall be necessary to examine or repair the tube-sheet b or the adjacent ends of the tubes b, the deflector may be taken apart by removing the bolts H and the split keys G, and the several sections being removed through the man-hole m, the heater is exposed, as usual.

Modifications may be made in the Vforms and proportions. The deiiector may be swaged from wronght-iron or steel instead of cast. The thickness of the deilector, and consequently the Obliquity of the angle formed by the tWo sides of the several ridges, may be varied Within considerable limits.

It will be understood that the exterior of the boiler and heater may be lagged with felt, wood, or sheet metal, like ordinary boilers.

All the ordinary or suitable appliances in general practice-as gages-may be used with my invention.

2. In a locomotive, the deector D, having flaring holes d, and made in detachable sections, in combination with fastening means H, the boiler A, tubular heater B, and connect` ing shell or casing M, having a man-hole, m, arranged for joint operation as herein specied.

In testimony whereof I have hereunto set my hand, at Paterson, New Jersey, this 6th day of June, 1884, in the presence of two subscribing witnesses.

HENRY A. LU TTGENS.

Vitnesscs: Roer. S. HUGHns, A. Monaca.

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