GB2143217A

GB2143217A - Skip construction

Info

Publication number: GB2143217A
Application number: GB08415571A
Authority: GB
Inventors: John Newsum
Original assignee: HALL MA PLC
Current assignee: HALL MA PLC
Priority date: 1983-07-13
Filing date: 1984-06-19
Publication date: 1985-02-06
Also published as: GB8415571D0; GB2143217B

Abstract

A skip for carrying men and materials in mine shafts has at least a lower part of the skip lined with replaceable plates (18) so that it can be used for the carriage of coal. So that the replaceable plates (18) can be replaced in a minimum of time and by men working only on the outside of the skip, the replaceable plates are either provided with integral flanged edges or are secured to flanged structural elements (20), adjacent flanges being secured together by fasteners (22) accessible from outside the skip. <IMAGE>

Description

SPECIFICATION Skip construction The invention relates to the construction of socalled skips which are used for carrying men and materials in mine shafts.

It is usual to construct skips used in coal mines with a load-carrying lower part for the carriage of coal and with an upper part in the form of a cage for carrying men. The lower part usually has a sloping floor so that when a door arrangement is opened the load of coal can be discharged at the pit head. Over a period of time the panels with which the lower part is lined become worn to such an extent that they need to be replaced. This is a considerable task and usually requires men working within and other men working outside the skip. The object of the invention is to provide a construction of skip which will simplify the operation.

According to the invention, there is provided a skip for carrying men and materials in a mine shaft, the skip having at least some easily replaceable plates lining those areas most prone to wear, said replaceable plates being either provided with integral flanged edges and the flanged edges of adjacent plates abutting together in back to back relation or said replaceable plates being secured along their opposite side edges to respective flanged structural elements, the flanged structural elements of adjacent plates abutting together in back to back relation, the integral flanged edges or said structural elements being secured together by fasteners accessible from outside the skip. The easily replaceable plates may be those plates lining a sloping floor of a lower part of the skip and may also be those plates lining the side and front walls of the skip.If the replaceable plates are secured along their opposite side edges to structural steel elements, the latter may be either channel sections or angle sections. The replaceable plates may be of homogeneous form or may have an applied layer of a wear resistant material.

In order that the invention may be fully understood and readily carried into effect, the same will now be described, by way of example only, with reference to the accompanying drawings, of which: Figure 1 is a semi-diagrammatic side view of a skip embodying the invention, Figure 2 is a detail view illustrating a detail of construction of the skip, and Figure 3 is a view similar to Fig. 2 but illustrating a possible modification which will presently be referred to.

Referring now to Fig. 1 of the drawings, the skip there illustrated is conventional in its general configuration, having a load-carrying lower part 10 for the carriage of coal and with an upper part 12 in the form of a cage 14 for carrying men. It will also be seen that the lower part has a sloping floor 16, this also being conventional so that when a door arrangement (not shown) is opened the load of coal can be discharged at the pit head. The interior surfaces of the load-carrying part are all of a hard wearing material to resist the considerable abrasion to which they are subjected in service. However, it is inevitable that the interior plates will require to be replaced from time to time when worn. The skip has been constructed so that this can be done with relative ease.

The replaceable plates 18 which constitute the sloping floor of the lower part of the skip are secured along their opposite side edges to respective channel elements 20 and the channel elements of adjacent plates abut together in back to back pairs. The abutting channel elements are bolted together by a series of bolts 22 extending through the webs of the elements, all the bolts being accessible from outside the skip. Consequently, it is a very simple matter for only one or two men, working from outside the skip, to remove all the bolts securing a particular plate and to replace the plate with a new plate having similar channel elements along its opposite side edges.

Other plates of the skip are secured together in a similar fashion. For example, it can be seen in Fig. 2 that plates 24 which line the side walls of the lower part of the skip are secured along their opposite side edges to respective angle elements 26 and said angle elements of adjacent plates abut together in back to back pairs. As in the case of the replaceable plates 18, the plates 24 are secured in position by bolts 22 which extend through the flanges of the angle elements, all the bolts being accessible from outside the skip.

Thus there is provided a construction of skip which has a load-carrying part lined with plates which can with relative ease be replaced when worn. However, various modifications may be made. For example, in Fig. 3 there is illustrated a plate 28 which has been provided with integral flanged edges 30 instead of being secured to respective flanged structural elements. In this case the bolts 22 which secure the plate in position, and which again are wholly accessible from outside the skip, extend through said integral flanged edges of adjacent plates which abut together in back to back relation.

Various other modifications may be made.

For example, it will be understood that instead of being of homogenous form the replaceable plates, or at least some of the replaceable plates, may have an applied layer of wear resistant material over at least some parts of their surfaces. The skip may be constructed in such a way that the coal container part can be removed in one piece from the man carrying part.

Claims

1. A skip for carrying men and materials in a mine shaft, the skip having at least some easily replaceable plates lining those areas most prone to wear, said replaceable plates being either provided with integral flanged edges and the flanged edges of adjacent plates abutting together in back to back relation or said replaceable plates being secured along their opposite side edges to respective flanged structural elements, the flanged structural elements of adjacent plates abutting together in back to back relation, the integral flanged edges or said structural elements being secured together by fasteners accessible from outside the skip.

2. A skip according to claim 1, in which the easily replaceable plates are those plates lining a sloping floor of a lower part of the skip.

3. A skip according to claim 2, in which the easily replaceable plates include those plates lining the side and front walls of the skip.

4. A skip according to any one of the preceding claims, in which the replaceable plates are secured along their opposite side edges to structural steel elements, the latter being either channel sections or angle sections.

5. A skip according to any one of the preceding claims, in which the replaceable plates are of homogenous form.

6. A skip according to any one of claims 1 to 4, in which the replaceable plates have an applied layer of a wear resistant material.

7. A skip for carrying men and materials in a mine shaft, constructed and arranged substantially as hereinbefore described with reference to and as illustrated by Figs. 1 and 2 or Fig. 3 of. the accompanying drawings.