Improvements in Manholes and Ventilator Frames and Coverь, and the like.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Manholes and Ventilator Frames and Coverь,
and the like.
HENRY LANCELEY, and RICHARD HANKINSON LANCELEY, Engineers, of Brook Street
in the City of Chester do hereby declare the nature of this invention to be as
follows:-
This Invention relates to that class of Street fitting known as Manhole frames and
covers, Ventilator frames and covers. As usually made the bearing surfaces of such
frames and covers are iron against iron, or iron against wood or stone curbing or
framing; and the wear on bearing surfaces, consequent on traffic passing over same
results in an objectionable noise being made as vehicles pass over same, and conse-
quently they have to be frequently renewed. The improvements secured by this
Invention has for its object the obviating of the noise referred to, and also the
reducing of the wear, and the consequent necessity for such frequent renewals. Under
this Invention the bottom frame whether made of irou, stone or other material is
provided with a series of pockets, which may be of any number or shape required by
the exigencies of particular cases; but generally the cross section of the pockets
would be either square, round, rectangular, or of a section having three or more sides.
Into these pockets blocks of timber, generally of hard wood, are fitted, and the covers
of manholes, ventilators or other service fitting, are properly fitted and bedded to
same. The pockets are so formed that when the timber blocks become worn they
can be easily removed, and replaced with other blocks, thus obviating the necessity of
new frames or covers. The covers may also be provided with similar pockets and
timber blocks; and the covers may also be provided with holes or pockets of any
section into which blocks are fitted so as to prevent horses or other animals slipping
on the metal surface, as they pass over it. This invention is intended to relate to such
manhole and ventilators and covers, and other devices as are used for the giving
of access to sewers, gas, water, electric light and other service pipes and
requirements.
Dated this Ninotconth day of 1000
Improvements in Manholes and Ventilator Frames and Covers,
and the like.
HENRY LANCELEY, and RICHARD HANKINSON LANCELEY, Engineers, of Brook Street
in the City of Chester, do hereby declare the nature of this invention and in what
Price 8d.1

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
This Invention relates to that class of street fitting known as Manhole Fraines aud
Covers, Ventilator frames and Covers. As usually inade the bearing surfaces of such
frames and covers are iron against iron, or iron against wood, or stone curbing or
framing; and the wear on bearing surfaces, consequent on traffic passing over same
result in an objectionable noise being made as vehicles pass over same, and conse-
quently they have to be frequently renewed. The improvement secured by this
invention has for its object the obviating of the noise referred to, and also the
reducing of the wear and the consequent necessity for such frequent. renewals. Under
this Invention the bottom frame whether made of iron, stone, or other material is
provided with a series of pockets which may be of any number or shape required by
the exigencies of paticular cases; but generally the cross section of the pockets
would be either square, round, rectangular, or of a section having three or more sides.
Into these pockets blocks of timber marked C on drawing generally of hard wood, are
fitted, and the covers of manholes, Ventilators or other service fittings are properly
fitted and bedded to same. The pockets are so formed that when the timber blocks
become worn they can be easily removed and replaced with other blocks, thus
obviating the necessity of new frames or covers. The covers inay also be provided
with. similar pockets and timber blocks; and the covers may also be provided with
holes or pockets of any section into which blocks are fitted so as to prevent horses or
other animals slipping on the metal surface as they pass over it.
This Invention is intended to relate to such manhole and ventilators, and covers,
and other devices as are used for the giving of access to sewers, gas, water, electric
light and other service pipes and requirements.
Referring to the drawings accompanying this Specification.
Figure 1 is an elevation of Manbole Frame aud Cover-the Cover und pockets with
timber blocks being represented by dotted lines.
Figure 2 is a plan of Manhole Frame with the Cover removed in order to show
more clearly the timber blocks C in the pockets.
Figure 3 is a section through line A. B. on Figure 2 and shows the timber blocks C
in elevation.
Tho Cover as shown by dotted line in Figure 1 is not shown in Figure 3 so as to
represent the blocks C more clearly.
Having now particularly described and ascertained the nature of our said Inven-
tion, and in what manner the same is to be performed we declare that what we
claim is :-
1. The method of applying wood blocks to the bearing and wearing surfaces of
Manhole and Ventilator frames and Covers-and of such other devices as are used for
giving access to sewers, gas, water, electric light and other service pipes and
requirements.
2. The method of constructing the frames and covers of Mauhole and Ventilators,
and such other devices, as are used for purposes above described,-with pockets,
recesses or spaces to receive wood blocks.
Dated this Rightoonth day of May 1897