US1642357A - Lifting car dumper - Google Patents

Description

Sept. 13, 1927.

A. F. c AsE LIFTING cm DUMPER I 2 sheets -sheez 1 Original Filed June 22. 1925 pt; 13,1927. 1 A F 5 2,357

LIFTING CAR DUMPER Original Filed June 22. 1925 2 SheetsSh'ee Z Jim/671F667 Patented Sept. 13, 1927.

ARTHUR F. CASE, OF CLEVELAND, OHIO,ASSIGNOB TO THE WELLMAN-SEAVER-MOR- GAN COMPANY, OF CLEVELAND,

OHIO, A CORPORATIOIT OF. OHIO.

LIFTING CAR DUMPER.

Application filed June 22, 1925, Serial No. 38,638. ReneWed March 3, 1927.

tically movable cradle cross-head and for the vertically adjustable pan or a' chute supporting girder by which the construction of the guide columns is simplified and-the cost 01 construction is materially.reduced.

Further objects are to provide a mounting for the pan girder such that less clearance is required bet-ween the ends of the cradle and the guide columns, such that the discharge pan or chute may extend completely across the space between the guide columns and such that the girder adjusting devices may be so positioned as to be efi'ectually' protected against damage by impact of material discharged from a car on the dumper.

A further object is to provide a mounting for the pan girder in which the girder bears againstthe front face of the column and by which the lateral thrust of the girder is directly upon the column, and further to provide a bearing for the girder on the column such that the lateral thrust on the column is substantially in the plane of the web thereof. I

A further object is to so mount the pa girder that it can be easily and quickly detached from the column without disturbing the guide members on the column.

lVith the above and other objects in view, the invention may be said to comprise the device as illustrated in the accompanying drawings, hereinafter described and particularly set forth in the appended claims, together with such variations and modifications thereof, as will be apparent to one skilled in the art to which the invention appertains.

Reference should be had to the accompanying drawings, forming a part of this specification, in which Fig. 1.is a side elevation of the car dumper; Fig. 2 is a fragmentary front elevation showing the upper portion of the tower and the pan girder supported thereon; Fig. 3 is a fragmentary front elevation on an enlarged scale showing one-end of the pan girder; Fig. at is a horizontal section through a guide column and the head carried by one end 01 the pan girder; and Fig. "5 is a vertical section through the pan girder and upper portion of the chute.

Referring to the accompanying drawings, the car dumper comprises a tower 1 built adjacent the edge of'the dock 2 and having supported thereon a tilting crade 3 which is adapted to receive a railway car, the cradle 3 having the usual supporting and guiding members 4, which are mounted for vertical movement between the front corner posts or columns of the, tower, this cradle being suspended from horizontal pivots 6 which connect the same to the guide members 4.- A horizontal pan girder 7 is mounted on the tower for vertical adjustment thereon and has fixed thereto a hook 8 which is adapted to engage with the pivots 6 of the cradle to limit the upward movement of the guide members .4. The pan girder 7 supports a discharge pan or chute which consists of an upper fixed section 9 extending along the top of the girder 7 and a pivoted section 10 which extends outwardly from the lower edge of the fixed deflector 9. The cradle 3 is operated by suitable hoist cables, as is common in the art, to elevate the same until the pivots are engaged by the hooks 8 and to then tilt the cradle about these pivots to discharge the contents of a car thereon onto the discharge chute.

. The operation of the car dumping cradle and discharge chute is exactly the same as that of lifting car dumpers now in common use, the present invention relating to the mounting of the cradle cross-head and pan girder on the tower. In accordance with the present invention, both the cradle crosshead and the pan girder are mounted for vertical movement on the guide columns 5, which formthe front corner posts of the tower 1. Each of the guide columns 5 is formed of four angle iron corner posts '11 to which are attached front and rear side plates 12 and 13 and an inner side plate or web 14 which has'vertically disposed angle guidebars 15 and 16 attached thereto, which form between them a channel guide for the guide members i. A third angle guide bar 17 is attached to the inner side plateld along its outer edge, the guide bar 1''? having one flange secured to the plate ll and its other flange projecting inwardly from the guide column adjacent the front face thereof. The pan girder 7 has rigidly secured to the opposite ends thereof vertically disposed heads 18 which are positioned in front of the guide columns Above and below the girder 7, the heads 18 have secured to the inner sides thereof transversely extending angle bars 19 which projects beyond the rear side of the girder 7 and have rigidly secured thereto, vertical guide bars 20', each guide bar 20 having an outwardly extending flange which lies upon the rear side of the inwardly extending flange of the guide bar 1? on the adjacent guide column. The cooperating guide bars 17 and 20 serve to guide the pan girder 7 along the front faces of the guide columns 5, wear plates 21 and 22 being provided on the front side plates 12 of the guide columns and on the rear sides of the pan girder. By mounting the cradle cross-head directly between the guide columns 5 and by guiding the pan girder along the front faces of the guide columns it is possible to employ a guide column of very simple and relatively inexpensive construction.

By reason of the fact that the wear plate 21 extends along the front face of the column directly in front of the plate or web 14, the lateral thrust of the girder is directly transmitted to the column in the plane of the web so that torsional stresses such as occasioned by thrust on projecting guide members are eliminated. If for any reason it is desired to detach the pan girder from the column, as, for instance, to replace wear plates 21, it is only necessary to detach the short guide flanges 20 carried by the heads Vertically disposed adjusting screws 23 are mounted on the guide columns 5 upon the front sides thereof and these screws engage with suitable nuts 24: secured to the heads 18 beyond the ends of the girder 7. The screws 23 may be provided-with suitable means for rotating them in unison as is common in the art to raise or lower the pan girder. The screws 23 being in front of the guide columns and outside of the inner walls of the vertically disposed heads 18, are effectually protected against damage by the impact of material discharged from a car on the cradle. In addition, the adjusting screws and nuts are more readily accessible and the removal thereof for purpose of repairs is greatly facilitated.

Y By mounting the grider adjusting means outwardly of the inner sides of the guide columns, less clearance is required between the ends of the cradle and the guide columns and the discharge pan or chute may completely bridge the space between the guide columns. Furthermore, the guide columns are of simpler construction and are cheaper to erect.

Having thus described my invention, 1 claim:

1. in a lifting car dumper, a tower having guide columns at the front thereof, a cradle mounted for vertical movement between said columns, a vertically adjustable pan girder having end portions movable along and bearing against the front faces of said columns, vertical guide members on the inner sides of the columns, and guide members on the girder and cradle co-operating with the guide members on i the columns. v

2. In a lifting car dumper, a tower having guide columns at the front thereof, a cradle mounted for vertical movement between said columns, an inwardly projecting guide flange carried by the columns along the inner front corners thereof, heads carried by the pan, girder at opposite ends thereof and lying in front of said columns, and guide members carried by said heads and adapted to co-operate with said guide flanges of the column.

3. In a lifting car dumper, a tower having guide columns at the front thereof, a cradle mounted for vertical movement between said columns, an inwardly projecting guide flange carried by the columns along the inner front corners thereof, heads car ried by the pan girder atopposite ends thereof and lying in front of said columns, guide members carried by said heads and adapted to co-operate -with said guideflanges of the column, andwear plates on the front faces of said columns and rear faces of said heads.

a, in a lifting car dumper, a tower having guide columns at the front thereof, a car dumping cradle, a cradle guided for vertical movement between said columns, a

vertically adjustable pan girder having end portions movable along the front faces of said columns, an angle guide bar fixed to the inner side face of each column and having an inwardly projecting flange. vertical angle guide bars fixed to the girder adjacent each end thereof, said last-mentioned guide bars each having a flange overlying the inner face of one of the first-mentioned guide bars, and means connected to the opposite ends of the girder for adjusting the same.

5. In a lifting car dumper, a tower having guide columns at the front thereof, a car dumping cradle, a cradle guided for vertical movement between said columns, a transverse vertically adjustable pan girder mounted in front of said columns and hav ing vertically disposed heads at the ends thereof movable along the front faces of the columns, (Jo-operating guide members carried by the columns, and heads, a vertically disposed girder adjusting screw mounted in front of each column, and a nut carried by each head and having threaded engagement with a screw.

(S. In a lifting car dumper, a tower having guide columns at the front thereof each having a web extending between the front and rear sides thereof, a cradle mounted for vertical movement between said colunms, a vertically adjustable pan girder having end portions movable along the front faces of said columns and bearing against the same substantially in the plane of said web, vertical guide members on the inner sides of the columns, and guide members on the girder and cradle cooperating with the guide members on the columns.

In testimony whereof, I hereunto affix my signature.

ARTHUR F. CASE.

Images