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Патент USA US2114237

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April .12, 1938.~
_
c. E. PINK
2,114,237
TR‘OUGH CONVEYER
Filed April 10, 1935
N V E NTO R
ATTORNEYS
2,114,237
Patented Apr. 12, 1938
UNITED STATES ‘PATENT OFFICE
2,114,237
THOUGH CONVEYER
Clarence E. Pink, Cambridge, Md.
Application April 10, 1935, Serial No. 15,703
6 Claims.
The object of the invention is to provide a con
veyer of the trough type in which the belt proper
is of the conventional spiral fabric form and in
which the ?anges are so constructed and arranged
that they may be disposed laterally of the fabric
and connected therewith to present ?at surfaces
on the inner faces of the trough ?anges in the
straight run of the conveyer, thus presenting no
pockets or crevices in which small articles being
10 carried may be trapped; to provide a trough con~
veyer in which positive alignment of the sections
constituting the ?anges of the conveyer is in
sured; to provide a conveyer of the kind indicated
in which the ?ange sections function to reinforce
(Cl. 198—201)
of the plates H and I2 and the tongue l3, the
projecting portion of the tongue of one section
entering the slot formed by the spaced plates of
the adjacent section. The tongues on the upper
edges are rounded, as indicated at ll, so that
when the ?anges pass around the supporting
pulley or drum, the upper edges will follow the
general contour of the drum.
The ?ange sections, while susceptible of rela
tive angular movement in one direction, in a nor
lo
mal plane in which they lie, are precluded from
such movement in the other direction. In other
words, the abutting edges of succeeding plates
stresses are imposed on the ?anges so as to re
in the ?ange sections limit angular movement of
the sections in one direction to alignment of the 15
plates, but, in the other direction, the plates may
lieve the fabric from tensile strain; and generally
swing relatively to speci?ed angular positions with
to provide a trough conveyer that will secure the
respect to each other. The angular positions of
the sections, which are necessary to permit the
?anges to traverse a pulley or drum, are made 20'
the fabric at its edges and in which the tensile
maximum efficiency in operation, that is simple
in construction, and that is susceptible of cheap
manufacture.
With this object in View, the invention consists
in a construction and combination of parts, of
which a preferred embodiment is illustrated in
the accompanying drawing, wherein:
Figure 1 is a perspective view of a section of a
trough conveyer constructed in accordance with
the invention.
Figure 2 is a similar view of a modi?ed form of
3 O the invention.
Figure 3 is an elevational view of the structure
shown in Figure 2, but showing the position of the
?ange sections at the time of passing around the
pulley or carrier drum.
Figure 4 is a detailed perspective view of still
35
another modi?cation.
The invention contemplates the use of any of
the conventional forms of spiral fabric, of which
a closely woven form is illustrated at H) in Fig
40 ure 1 of the drawing. This spiral fabric consti
tutes the belt portion of the conveyer, and the
latter is troughed by the application of ?anges
laterally at the side edges. In the form shown in
Figure 1, each ?ange consists of a plurality of
45 relatively movable sections, of which each com
prises the plates H and I2 and the tongue iii.
The plate II is formed with an inturned ?ange
portion M which is secured to the fabric 40 by an
appropriate fastener, such as rivets I5, and may
50 ' be disposed either against the under side of the
fabric, as shown, or on the top side, if the use
to which the conveyer is put warrants that form
of construction. The plates l l and I2 are assem
bled in pairs along with the tongue I3, as by rivets
55 l6. Each section of the ?ange, therefore, consists
possible by. cutting the plates away at their lower
edges and on their ?ange portions, as indicated
at l8, so that spaced shoulders are provided on
adjacent ?ange sections which abut in the ex
treme angular positions of the sections. That
portion of the fabric comprehended between the
adjacent ?ange sections I4 constitutes the means
on which the ?ange sections swing in effecting
their relative movement.
In order to impose the tensile stresses on the
?anges rather than on the fabric I0‘, the ?anges
may be made in the form shown in Figures 2 to 4,
in which each section of the ?ange comprises a
plate I 9 and connected tongue 20, the tongue be
ing riveted or otherwise secured to the plate as
indicated at 2!, but projecting beyond the plate
so that it overlaps a companion plate at the line
of juncture between the plates. Each of the
plates I9 is formed with an arcuate slot 22, and
a headed pin 23 on the overlapping tongue passes 40
through the slot in the plate. The slots provide
for the necessary relative angular movement of
the ?ange sections, as illustrated in the eleva
tional view in Figure 3, and at the same time pro
vide that the longitudinal belt stresses shall be 4:5
carried by the ?anges. Also, the plan for head
ing the studs 23 maintains the ?ange sections in
lateral alignment, so that the plates of each sec
tion may be brought in edge abutting engage
ment in the straight runs of the conveyer.
In this form of the invention, it is not neces
sary that the ?ange attaching means be of the
extent of the attaching ?anges M. Accordingly,
the attaching means consists of tongues 24 which
may be secured on top or underneath of the 55
2
2,114,237
fabric it (preferably underneath) by means of
rivets 25.
Instead of securing the tongues 24 super?cial
ly to the fabric, however, the latter may be woven
between them when the conveyer is passing
around the periphery of a supporting pulley.
4. A trough conveyer comprising a spiral fab
ric and lateral sectional ?anges secured to the
with an elongated spiral 26 at the points where
the tongues 24 fall, as shown in Figure 4, and
fabric, each ?ange embodying a plurality of rel
the tongues inserted within the convolutions of
these spirals where they may be retained in po
sition by means of rivets 21 or other suitable fas
10 teners.
Having described the invention, what is claimed
as new and useful is:
1. A trough conveyer comprising a spiral fab
ric and lateral sectional ?anges secured to the
15 fabric, each ?ange embodying a series of plates
arranged in a common plane and in end to end
relation, and a tongue secured to each plate and
overlapping its line of juncture with the suc
ceeding plate, the tongue having a slidable in
20 terlocking connection with such succeeding plate
precluding relative lateral movement of adja
cent plates throughout the extent of relative
angular movement of said plates.
2. A trough conveyer comprising a spiral fab
25 ric and lateral sectional ?anges secured to the
fabric, each ?ange embodying a series of plates
arranged in end to end relation, each plate being
formed with a ?ange portion overlapping and
secured to the fabric, and a tongue secured to
30 each plate and overlapping its line of juncture
with the succeeding plate, and slidable interlock
ing connections between the plates and tongues
to permit relative angular movement of the plates
in the plane in which they lie and impose tensile
35 stresses on the conveyer wholly on the ?anges.
3. A trough conveyer comprising a spiral fab
ric and lateral sectional ?anges secured to the
fabric, each ?ange being formed in sections, of
which each section consists of spaced plates de
40 ?ning an intervening slot and a tongue, the
tongue of one section entering the slot formed
by the spaced plates of the adjacent section, the
slot—de?ning plates being co-extensive and the
tongue being of substantially the same area as
45 said plates so that it may not be withdrawn from
atively movable sections, of which each com
- prises a plate and an attached tongue, the plates
being secured to the fabric in end to end rela
tion and the tongues overlapping the line of
juncture between adjacent plates, the tongue of
each section having a slot and pin connection
with the plate of an adjacent section in which
the slot is of arcuate form generated on a radius
with the axis of relative movement of adjacent
15
plates as the center.
5. A trough conveyer comprising a spiral fabric
and lateral sectional ?anges secured to the fab
ric, each ?ange embodying a series of plates ar
ranged in end to end relation and provided with
means for securing them to the fabric so that 20
they abut the fabric at the edge with their own
lower edges below the top face of the fabric, a
tongue secured to each plate and overlapping its
line of juncture with the succeeding plate, and
slidable interlocking connections between the 25
plates and tongues to permit relative angular
movement of the plates in the plane in which
they lie and impose tensile stresses on the con
veyer wholly on the ?anges.
6. A trough conveyer comprising a spiral fabric 30
and lateral sectional ?anges secured to the fab
ric, each ?ange embodying a series of plates ar
ranged in end to end relation and provided with
means for securing them to the fabric so that
they abut the fabric at the edge with their own 35
lower edges below the top face of the fabric, a
tongue secured to each plate and overlapping its
line of juncture with the succeeding plate, and
means precluding relative lateral movement of
the tongues and plates at all times but permitting 40
relative sliding movement of the same when the
conveyer is passing around the periphery of a
driving or supporting pulley.
CLARENCE E. PINK.
45
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