Conveyors – chutes – skids – guides – and ways – Chutes – Wall
Patent
1996-08-13
1999-08-24
Terrell, William E.
Conveyors, chutes, skids, guides, and ways
Chutes
Wall
193 33, B65G 1102, B65G 1118
Patent
active
059413620
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to chutes for the drop delivery of material, articles or other items from the upper floors of a multi-storey building to a lower level. Such chutes (referred to as drop delivery chutes hereinafter) provide a quick and inexpensive means for delivering items to, for example, a ground floor or basement destination, when the items are either able to withstand the fall without damage or where damage is of no consequence.
The invention was developed for application to temporary drop delivery chutes as frequently used for the disposal of rubbish or debris from the above ground floors of a multi-storey building during construction of the building, and is described herein primarily with reference to drop delivery chutes for that usage. It will be appreciated however that it is applicable to drop delivery chutes generally, including permanent chutes such as those used, for example, for the delivery of soiled bed linen or the like from hospital wards to a basement laundry or collection facility.
2. Description of the Prior Art
The big majority of prior known drop delivery chutes for the disposal of debris during the construction of a multi-storey building have been of two types: together to form an elongated downwardly extending duct wherein each module feeds into the one below. Usually the modules are only loosely linked together and require special arrangements for their overall support. Debris and like materials may be fed into the open top of the duct, but such chutes usually do not allow for the in-feed of material at points along the length of the duct. They are therefore expensive, time consuming to erect, limited as to the number of floors that may be serviced simultaneously and, because of their discontinuous nature they may release a good deal of dust into the atmosphere when in use. plurality of inlet structures permitting material to be delivered into the duct at each floor serviced by the chute. Such multiple inlet chutes are usually secured by tie-beams or the like to the building structure, although it has been proposed hitherto to anchor the inlet structures to the respective floors for the support of the chute as a whole. The duct may be continuous, that is to say devoid of loose or ill fitting joints, and therefore may be substantially dust tight, but chutes of this kind and their supporting structures have usually been tailor made for each site, which is an expensive, and in the case of temporary rubbish disposal chutes, a particularly wasteful procedure.
Attempts have been made to provide multiple inlet, debris disposal chutes with continuous ducts utilising re-useable duct modules. Those modules have been in the form of open-topped and open-bottomed fabricated metal boxes, of which some are furnished with an inlet opening. In use they are fastened together, one upon another, to form a continuous duct. However, the floor spacing in multi-storey buildings varies from site to site, and this has meant that either a tailor made, non-standard "module" has been required between each floor or that each regular inlet module has not been able to be optimally placed relative to each floor for ease and convenience of use.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a drop delivery chute having multiple inlets and a substantially continuous, preferably re-useable, duct which may be more readily adjusted insofar as the vertical spacing between adjacent duct access openings is concerned than has been the case in the ducts of prior known chutes of that type.
According to a first aspect the invention consists in a drop delivery chute comprising a continuous duct which itself comprises a trough sectioned body having an open face, and a plurality of cover elements adapted to span the open face to constitute a closure wall of the duct; and means to secure the cover elements to the body, which means permit the respective cover elements to be secured at any position along the length of the body as needed to f
REFERENCES:
patent: 1877234 (1932-09-01), Gallagher
patent: 1886793 (1932-11-01), Davidson
patent: 3931877 (1976-01-01), Albaugh
patent: 4640403 (1987-02-01), McDermott
Deuble Mark
Terrell William E.
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