IMPROVEMENTS IN ELEVATOR CASES FOR GRAIN AND OTHER SUBSTANCES
Year: 1886

page_text: We, ALEXANDER THOMPSON, Tin Plate Worker and EDMUNDSON SCHOLES, Corn
Miller both of Hollinwood near Oldham, in the county of Lancaster do hereby
declare the nature of our said invention for IMPROVEMENTS IN ELEVATOR CASES
FOR GRAIN AND OTHER SUBSTANCES to be as follows:-
This invention relates to improvements in the construction of elevator cases for
grain and other substances, and the object of this invention is to afford increased
facilities in the construction of the said elevator cases, and to render them fireproof:
also to prevent the condensation of steam which usually accumulates: while the
several parts forming the said elevator cases, may be more easily detached for
packing or other purposes: In the construction of elevator cases, such as herein
above described, we use sheet metal plates: on the edges of these plates, we form
angular flanges of any convenient depth: we place the plates at right angles to
each other, so that the flanges on the plates may form the corners of the case:
between these flanges we insert a metal bar: we attach the flanges of the plates to
this metal bar by bolts, screws, or other suitable means: a convenient length or
section of an elevator case is thus formed: the elevator case is by these means first
constructed in sections or parts: the metal bar to which the flanges of the plates
are attached, we extend so as to lap on to the following section or set of plates, and
thus break joint with them: the several sections required to form the elevator case
are thus united.
In joining plates to form an elevator case or for other purposes, we use in lieu of,
or in addition to the form of joint as herein above described, a hollow grooved bar
or tube: The flanges on the edges of the plates we make of an ogee shape, or they
may be S shaped or if preferred dovetailed, and are set to an angle from the plate
that will allow the said plates, when the angular ends of the respective plates are
brought together to form a rectangular or any other shape of case that may be
required: We form a hollow bar or tube, the section of which may be angular,
circular or other convenient shape, having at one side a groove or slot: The plates
or bars requiring to be united are placed together in position: the angular ends of
the said plates form a projection, being narrow in the corners and swelling out-
wards. On and over these projections we slide the hollow bar or tube as herein
D

page_text: above described: the groove or slit in the said bollow bar thus nips into the
corners of the aforesaid angular projections, and the outward part of the said
projections fills the internal portion of the hollow tube or bar: the plates formning
the case are thus firmly held together.
When the plates require to be taken apart for packing or other purposes the
aforesaid hollow bar or tube is drawn off the angular ends of the said plates, and
the plates are thus disunited.
When it is desired to prevent the condensation of steam which usually accumu-
lates, we form the sides of the elevator case with two thicknesses or sheets of
metal and pack or place between them a layer of felt or other nonconducting
material.
Dated thin 7th
1000
ALEXANDER THOMPSON.
EDMUNDSON SCHOLES.
COMPLETE SPECIFICATION.
Improvements in Elevator Cases for Grain and other
Substances.
:
We ALEXANDER THOMPSON of Hollinwood near Oldham in the County of
Lancaster, Tin-plate Worker, and EDMUNDSON SCHOLES of the Victoria Mills,
Hollin wood aforesaid, Corn Miller, do hereby declare the nature of this invention
and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement and accompanying drawings
Our said Invention relates to improvements in the construction of metallic
elevator cases for grain and other substances and the principal object of our
invention is to render the several parts of the said elevators capable of being easily
and quickly put together and detached for packing and transport. Elevators made
in accordance with our invention are fireproof and means are employed to prevent
condensation of the steam and vapours which may find an entrance to the elevator
casings..
:
And in order that our said invention may be properly understood, we will now
proceed more particularly to describe and ascertain the nature of the invention and
the system mode or manner in or under which the same is or may be used or
carried practically into effect reference being had to the annexed sheet of drawings
and to the letters and figures marked thereon, to be as follows, that is to say -
Fig. 1 of the said, drawings is a cross section and Fig. 2. a portion of a side
elevation of an elevator casing constructed in accordance with one modification of
our invention. The casing is composed as shown of four sides a. a. a. à. of sheet

page_text: metal. At the edges of the said plates we bend or form flanges b. and we apply.
lengths of angle iron c. to which the plates a. are secured by rivets d. or it may
be screws passing through the flanges and angle irons and thus uniting the four
plates a. so as to form an elevator casing of the description shown. An enlarged
view of the joint is shown at Fig. 3. of the drawings. The casing is made in
sections of suitable lengths which are afterwards united to form a casing of the,
length required. To render such union more secure we cause the sides of one.
section to overlap the sides of the next as shown at Fig. 2. and these overlapping
sides may be in the same or in different planes. The angle irons c. on each section
are also extended so as to overlap and be secured to the succeeding section, this
break joint arrangement tending to stiffen the structure. Instead of angle irons
metal bars of a square or triangular section may be employed to connect the sides,
and bolts screws or other fastenings may be used instead of the rivets d. Another
method of uniting the plates composing the elevator is shown at Fig. 4. A section
of one corner joint only is shown as it is considered unnecessary to show a complete
section of the casing as in Fig. 1. In this example the edges of the plates a. are
bent at an angle and also lapped round into a semicircular form as clearly shown
at Fig. 4. and at the perspective view Fig. 5. To confine these bent edges b. and
thus secure the plates a. together we employ a tube e. having a slit f. extending
throughout its length, the said slit allowing the tube to be pushed over the
flanges b. b. so as to encase the same and hold them firmly and securely together
forming a joint which can be easily made and disconnected and which is perfectly
dust and weather proof. In. Fig. 5. the slit tube e. is shown in position above the
flanges b. and ready-to be slipped over the same so as to form the joint. If desired
a strip of rubber or other packing might be interposed between the straight
angular portions of the flanges b. No rivets or fastenings other than the tubes e.
are used to unite the four corners of the elevator casing and it will be evident,
that such a joint as we have described and shown can be easily and cheaply made,
and is capable of being quickly disconnected so that the sides of the casing can
be packed into small compass for storage or shipment. Fig. 6. is a representation
of the same joint described with reference to Figs. 4 and 5 but applied to the
inside of the casing instead of to the outside. This form of joint can be used in
cases where it is undesirable to have projection on the outside of the casing. In
Fig. 7. the sheathing tube e. is flattened and the flanges b. are correspondingly
formed. It will be understood that we do not consider ourselves limited to the
exact forms of the joints and sheathing tubes shown and described with reference
to Figs. 4 to 7. For example the tube e. might be triangular or polygonal in
section. The various sections are connected together so as to form a continuous
casing by means of the angle iron jointing frames shown at Figs. 9 and 11 of the
drawings. The angle iron frame g. which is shown in plan at Fig. 11. is rivetted
to each end of the several sections so as to form a flange all round each end. To
allow the projecting flanges b. on the plates a. to be continued up to the angle iron
flange, the corners of the angle iron joint rings g. are slit or sawn at h (fig. 11.) so
as to allow the entrance of the united flanges b. The several sections are bolted
or rivetted together by means of their joint rings g. so as to form a continuous
casing of any desired length-The example illustrated at Figs. 8, 9, and 10, also
indicates the means we adopt to prevent condensation in the interior of the elevator
casing of steam and aqueous and other vapours which may find an entrance to the
elevator casings. To neutralize this tendency, we form chambers i. on the sides a.
of the elevator casing and fill these chambers i. with felt or other non-conducting
material or substance which will prevent radiation of heat or these chambers i.
might be heated with steam hot air or hot water or gas so as to prevent condensa-
tion in the interior of the casing. In Figs. S, 9. and 10, the sides a. of the casing
are united by a form of joint similar to that shown at Fig. 4, but any other or
suitable joint might be employed. The method of applying the outer plates to
form the chamber i. is clearly indicated at the enlarged sectional view of the joint
Fig. 10.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that what
we claim is :—
1. The method of connecting the sides and sections of elevator casings by means
of angle irons, or bars of a square or other section applied between the flanged
edges of the plates composing the casing and secured by means of bolts, rivets,
screws, or other suitable fastenings, substantially as herein before described and
shown at Figs. 1. 2. and 3. of the drawings
2. The method of connecting the sides of elevator casings by flanging, bending,
beading forming or enlarging the edges of the plates so as to permit of a slit tube
or clip of a circular or other section being slid longitudinally over the said flanged,
beaded or enlarged edges when placed in position so as to secure the parts of the
casing firmly together, substantially as hereinbefore described and shown at Figs. 4
to 10 of the drawings.
3. In elevator casings forming a chamber or chambers on the outside of the
casing and filling the same with a suitable non-conducting material or heating the
same with steam, hot air hot water or gas with the object of preventing or
neutralising condensation within the elevator casing, substantially as described
and shown.
DUTTON & FULTON,
1, St. James Square, Manchester,
Agents.