US1731811A - Ash pan - Google Patents

Description

W. G. BLCK Asa PAN Filed June 14 1926 i5 Sheets-Sheet 1 fafilahm, @C Blu/f, @W1 11.11111. @0m/79H11 Oct. 15, 1929.. W. G. BLACK ASH PAN .Filed June 14 1926 3 Sheets-Sheet 2 4 Eg/67m?. mm-Em bluff" Oct. 15, 1929. w. G. BLACK ASH PAN Filed June 14 192e 15 Sheets-Sheet 5 naemto( 1 KJV/2m @www Patented Oct. 15, 1929 UNITED STATES PATENT OFFICE WILLIAM G. BLACK, OF CLEVELAND, `OIE-IIC), ASSIGNOR 'IO THE CAST STEEL DEVICES COMPANY, OF LIMA, OIIIO, .A CORPORATION 0F OHIO ASI-I PAN Application filed June 14,

This invention relates to improvements in ash pans for steam locomotives, and has for its principal object to provide a new and improved construction for devices of the` character describe-d.

As heretofore constructed, locomotive ash pans are located below the grate bars of the lire box and have ordinarily been formed of plate steel with the sides thereof inclined downwardly towards a centrally disposed hopper. In such constructions the main draft openings have heretofore been provided immediately adjacent the side walls of the fire box and above the side edges of the ash pan. It has been found that the cold air rushing along the lire box sides has a tendency to expand and to contract the stay bolts, causing continual leakage and frequent adjustment thereof. This also has a detrimental effect on the iire itself, causing it to burn more rapidly along the sides of the fire boX than at the center. There is a further danger with the prior arrangement referred to, that a strong side draft may carry sparks and cinders over the edge of the ash pan, thereby endangering surrounding property.

In carrying out my present invention I produce an improved construction, preferably formed of steel castings, in which the side plates of the ash pan consist of two layers spaced vertically from each other to form louvres on each side, but with the sides sloping downwardly so that the louvre opens in a downwardly inclined direction. With this construction the cold air is admitted through the louvres well below the grates, being first directed inwardly and downwardly so that its natural course will thence be upwardly towards the center of the fire, so as to give a more even distribution of draft thereto. This construction also eliminates the trouble exA perienced by the admission of cold air directly along the sides of the fire box, as above described. In the present invention I also provi-de means for admitting air from the front of the ash pan, in proportion to the speed of the locomotive. Other features of advantage will also appear from the following description.

In the drawings,

1926. Serial No. 115,789.

Figure 1 is a side view of an ash pan constructed in accordance with my invention, but removed from the locomotive.

Figure 2 is a transverse section taken on line 2-2 of Figure 1, and indicating the position of the pan relative to the grate bars and fire boX of a locomotive.

Figure 3 is a sectional view taken on line 3-3 of Figure 1, but drawn on a somewhat smaller scale than the previous figure.

Figure l is a plan view of the ash pan shown in Figure 1.

Figure 5 is a detail section showing a draft opening at the front end of the ash pan, taken on line 5-5 of Figure 4.

Referring to details shown in the drawings, the ash pan shown is made up of two sets of plates 10 an-d 11, forming the downwardly inclined sides thereof, front and rear plates 12 and 13 and a centrally disposed hopper 14. Various connecting- lugs 15, 15 are provided at which points the several parts may be secured together, as by riveting or welding.

In the preferred form shown each of the side plates l() consist of two parts 10EL and 10", joined together with a lapping joint 10C. Similarly the side plates 11 each consist of two parts 11a and 11b joined together by a lapping joint 110. The two-part construction of plates 10 and 11 shown herein is provided for convenience in handling such relatively large cast plates, although after they are joined together both plates serve as integral members. It will be understood that the plates can be formed in a single piece, if de sired, and for the purpose of the present de scription these side plates will hereinafter be referred to as unitary members 10 and 11 respectively.

Referring to Figures 2 and 3 the arrangement and means for connecting side plates 10 and 11 will be clear. rIhe lower margin 20 of each plate 10 overlaps the upper margin of adjacent plate 11 but spaced in vertical relation thereto by means of connecting studs 2.2*22 In the form shown the studs are cast integral with one of the plates as for instance, the upper plate 10, and are provided with a bore 2e therein, through which 20, ff neath the fire box of the locomotive 1n any 2 i. I, I .I

rivets may bev placed for securing the plates 10 and 11 together.

As shown in the various figures, the connecting studs 22-22 are arranged in -two rows and in staggering relation to each other along each side of the ash pan, thereby forming a `louvre 23 along each side of the pan and opening downwardly at the same inclination as the adjacent portions of the side plates 10 and 11.

I also provide an opening in end plate 12, said end plate having a rearward extending flange or hood 31 to prevent ashes dropping out through the opening 30, as clearly shown in the detail Figure 5. By means of this openingair is admitted beneath the grates, andcentra-lly thereof, in proportion to the speed of the locomotive.

When in use, the ash pan constructed in accordance with my invention, is secured besuitable manner. The relative position of the ash pan is clearly indicated in Figure 2, in which grates 35 of any suitable form are mounted on side beams 36, 36, and a center beam 37. The lower parts ofthe fire boX are indicated at 38-38 and outer walls at `39-39. FromyFigure 2 it will be seen ythat the space beneath thev grates is substantially closed I along the lower Vedges 'of the lire boX.

l Means are also provided for permitting cleaning the ash pan, herein consisting of an opening 40 formed along the upper edge of the side plates 10-10 and normally covered b a'hing'ed lid 41441, which may be suitably connected, as for instance to the outer wall 39, Vras shown. Manifestly these hinged lids Vmay also be hinged directly tothe end plates 12 and 13, if desired. The arrangement is suchV that "these hinged lids are normally closed, but may be raised whenever it isj'desired'to clean or scrape the upper surface of the ash pan portions Vlll-10. The 'upper surfacesl of the Vplates 11-11 may be readily reached for 'cleaning through the louvres 23-23.

' From the above description it ywill now be clear `that the draft to the fire boX will be ad- `in'ittedthrough thelouvres 23-23 at a point well below the sides of the fire box, and directtowards the center of the fire so as to give an even distribution of draft thereto. The louvres are Vformed in a simple and economical manner, from the two parts 10 and 11 of the side plates, which furthermore readily lend themselves to cleaning as described. The construction of the invention is particularly `adapted' for manufacture from steel castings, as described.

While I have illustrated and described the particu-lar' embodiment of my invention, it will be understood that I do not wish to be limited 'tothe exact construction shown and described,lbut that various changes and modifieatfionspmay -be madey kwithout departing W. G. BLACK.

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