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Патент USA US2136267

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Nov. 8, 1938.l
' w. J. TAYLOR>
2,136,257
CONVEYER MECHANISM
_Filed July V30, 1955
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2,136,267
Patented Nov. 8, 1938
UNITED- STATES PATENT GFFICE
2.136.267
CONVEYEB MECHANISM
William .1. Taylor, Syracuse, N. Y., assignor to
The Lamson Company, Syracuse, N. Y., a cor- .
poration oi Massachusetts
'
Application July 30, 1935, Serial No. 33,847
(cl. iss-127)
8 Claims.
This invention relates to an improvement in
conveyer mechanism more particularly in such
mechanism of the live miler type comprising a
plurality of article transporting rollers rotated
5 by a driving cable.
Objects of this invention are briefly to provide
in a live roller conveyer mechanism, means for
tently. 'I'he branch line |0| may be of any de
sired type and is here shown as a gravity roller
conveyer having a plurality of free rollers over
which the articles travel.
Suitably supported
across the main line as upon uprights |02 are _a UI
pair of angle bars |03, one at each end of the
junction of the main line with the branch line.
deflecting articles from the main line to a branch Mounted at their ends upon the bars |03 are a
line and automatic means for facilitating the . channel bar |04, an angle bar |05, and a rod |00,
the bars |04 and.` |05 and the rod |06 being all
l0 separation of the articles into groups.
lThese-and other objects of the invention will parallel to each other as shown particularly in
be fully understood from an examination of the Fig. 1. Between the cross bars |03 are mounted
following detailed description thereof and of the the live rollers | 01, hereinbelow referred to as de
drawings which form a part of said description ilector, rollers. Each roller |01 is carried by a
U-shaped bracket |08 in the end walls oi which
-o and in which
Fig. 1 is an enlarged plan view of a live roller the vroller is rotatably mounted. Each bracket
|08 is pivoted upon the bar |04 by a pin |08 and
section 'provided with an article deiìector mecha
is supported at one end by an ~antifriction bearing
nism embodying this invention;
||0 which surrounds the pin | 09 and at the otherFigs. 2 and 3 are side elevation and cross-sec
end by the ma los upon-which it rests freely. As20 tional views respectively thereof;
Figs. 4 and 5 are enlarged views partly in cross sociated with each roller |01 is a sheave III
> mounted upon the bar |05 by a bracket | |2. Each
section of details of the deilector mechanism;
Fig. 6 is a diagrammatic view illustrating the sheave III holds the cable 52 in contact with its
roller |01 and is so positioned over the pivot pin
operating circuit for the deflector mechanism;
|00 that the contact of the cable and the roller
25
Figs. '1, 8, and 9 are side elevation, cross-sec
tional and plan views respectively of an article is in vertical alignment with the` pin.
As indicated by dotted lines on Fig. 1 the
actuated control for separator mechanism;
Figs. 10 and 11 illustrate the article contacting brackets |00 with the rollers |01 are movable upon
the pivot pins |09 to guide articles from the main
arm of such control;
Fig. 12 is an enlarged sectional view of a detail line to the branch line |0I. The brackets are
moved in unison being connected at the ends fur
of the arm shown in Figs. 10 and 11.
Fig. 13 is a view in elevation oi' the ratchet thest from the pins |09 by straps which vary in
length as shown particularly in Fig. 1. The iive
wheel of the control;
A Fig. 14 is a view of electrical element of the brackets at the right end of the group are joined
by a single strap | I3 so that they move a uniform
control; and"
Fig. 15 is a diagrammatic view illustrating an distance. 'I'he other brackets move distances
electrical layout by which the control is caused which gradually decrease, the sixth bracket from
the right moving a shorter distance than the five
to operate a deilector mechanism.
This invention relates to a conveyer system brackets which are joined together and the
40 which includes one or more live roller sections. bracket atl the left end of the group moving the
'I'he term “live roller section” is used to designate shortest distance. This follows by reason of the
difference in length of the straps Ill, H5, H6,
a conveying instrumentality comprising a plural
I I1, ||8 and ||0 which respectively join the adja
ity of rollers over which the articles travel and a
cable'or the like which is held in contact with the cent brackets. The manner of pivotally securing
rollers and driven by a motor or other means to the straps to the brackets is illustrated in Fig. 5
rotate the rollers and cause the latter to advance which shows a pin |20 by which one end of the
the articles. In Fig. 1 which illustrates a portion strap ||4V is secured to a bracket |08.
Movement is imparted to the brackets |00 by
' of a conveyer system is shown a live roller sec
50 tion comprising a plurality of rollers |01 rotated a thruster |25 of the well known type having
by a suitably advanced cable 52.
n
The live roller section indicated on Fig. 1 in
cludes a branch station or storage line |0| leav
ing from the main line- and to which articles are
~515 'deñected as' desired either continually or intermit
10
15
20
N5
30
35
'
“o
‘5
50
push rods |26 connected by a cross bar |21 which
is raised and lowered by the mechanism within
the thruster which is not shown'being norpart
of the present invention. A cross shaft |25 '
- mounted upon a pair of uprights |02 is oscillated g5
l.“n
i
.at
»
,
by the thruster through an arm it@ pivotally at
tached to the cross bar 521’. This movement' of
the shaft 926 is transmitted to the brackets mit
through an arm it@ fixed at one end; of the shaft,
'a link; liti ancla strap i152 fined to one oi’ the
brackets "|06, A spring itil iìxed at one end to
a cross bar lilil and at the other end to a bracket
i08 assists the thruster to return the rollers lil'i
to the normal position shown in full lines in
10 Fig. 1 so that articles will pass undeflected. along
the main line.
The thruster |25 hereshown is electrically op
erated by an electric circuit, such, for example,
as that shown diagrammatically in Fig. 6.
Mounted upon one side rail of the main line and
in the branch line ||l| are circuit breakers |35,
|36 and |31 respectively.
The' breaker |35 on
the main line serves as a safety device and when
tripped by contact with an article opens the cir
20 cuit. The breakers |36 and |31 are arranged
in parallel and both must be tripped simulta
neously to open the circuit. The breaker |35 is
so located that it will be tripped by each article
on the _main line passing over the deilector junc
25 tion so that the circuit may not be inadvertently
closed and the brackets |08 swung on their pivots
when an article is entirely supported by the de
flector rollers |01. A switch |38 operable man
ually or in any well known manner controls the
30 state of the circuit (either open or closed) in the
usual way.
Figs. 7 to 15 illustrate means for energizing
the thruster |25 which may be employed When
ever it is desired that alternate groups continue
35 their travel past the deilector mechanism along
the main line, and that the other groups be de
ilected to the branch line. The groups each con
sist of a predetermined number of articles, which
may diii‘er between the main line groups and the
40 branch line groups.
For example as will ’he
pointed out below, the illustrated separating
means may make main line groups consisting of
ñve articles each and branch line groups consist
ing of three articles each.
45
'I’he separator |52 operates automatically and
comprises
the
following
,
aise, «
instrumentalities.
Mounted upon a structure which comprises up
rights |53 at opposite sides of the live rollers and
an overhead frame |54 above the rollers and
50 formed by angle bars, is a shaft |55 which is
freely rotatable in journal bearings |56. Fixed to
the shaft |55 is a ratchet wheel |51 with which
a pawl |58 carried by a guard |59 meshes. Sus
pended from and freely movable about the shaft
55 |55 are a pair of arms |60 one ateither side of
the ratchet wheel |51. The arms are of such
length that a bar |6| carried by the lower ends
Itfi'ountezi on the frame tilt is
control bon
il@ within which is mounted a rotor Il’i'il fined at
one enti of the shaft
and a pair of wiper
arms ill@ mounted upon blocks of dielectric mate
rial i‘lii.
:rotor is also primarily of dielectric
material having, at diametrically opposite sides
of the periphery, Contact plates i'ih’l. The tipa of
the Wiper crine i12 .are yieldably held by springs
i'iil in Contact with the periphery of the rotor.
The rotor is advanced step by step in unison with 10
the ratchet wheel. In the illustrated construction
the wheel includes sixteen teeth so that the pas
sage of sixteen articles will cause one complete
rotation of the wheel and of the rotor. 'I'he ‘con
tact plates |14 are of such length that the wiper
arms |12 will remain in contact therewith while '
' the ratchet wheel is moved three steps.
Thus
after three articles have passed the arms contact
with the dielectric portions of the periphery o1' the
rotor until ñve more have passed.
thruster |26 as shown in Fig. 15. Thus the
thruster will be energized while groups of three
articles pass the separator and deenergized while
groups of ñve articles pass so that groups of three 25
are deflected and groups of five are not. The
number of articles in the groups obviously de
pends upon various details as for example the
number of teeth in the ratchet wheel and the
number and length of the contact plates |14 of the 80
rotor, which may be changed to suit the desired
requirements of any installation.
While certain features of this invention have
been shown and described in detail it will be un
derstood that the invention is not limited thereto 35
and that various changes may be made in any or
all thereof without departing from the spirit and
scope of this invention.
I claim:
1. In a live roller conveyer mechanism com
cles along a line and an endless driving cable one
run of which is in contact with and rotates the
rollers, means for deiiecting articles from the line
'comprising means for shifting the angularity of 45
certain rollers'to change the direction of travel
of the articles, said means comprising brackets
in which a plurality of successive rollers are sup
ported individually, a pivot for each bracket ad
jacent one end thereof, a support on which the 50
other end rests and over which it is slidably mov
able and means -for shifting said brackets with
their rollers upon such pivots and causing them
to slide over the supports thereof.
2. In a live roller conveyer mechanism com
60 the arms |60 is a cross block |62 which carries a
rollers, means for deflecting articles from the line
comprising means for shifting -the angularity of
certain rollers to change the direction of travel
ofthe articles, said means comprising brackets
|63 being in contact with a tooth of the ratchet
wheel advances the latter one step. After the
article has passed the arms resume their nor
mal vertical position, the spring |64 permitting
70 the latch |63 to move back over the next ratchet
tooth, the pawl |58 resisting any tendency of the
wheel to turn back. In order to limit this back
ward movement of the arms there is provided a
stop plate |65 which is adjustably ñxed to a
75 bracket |66 depending from the frame |64.
55
prising a plurality of rollers for transporting arti
cles along aline and an endless driving cable one
run of which is in contact with and rotates the
tripped by an article the arms |60 are swung in
65 the direction of travel of the article and the latch
40
prising a plurality of rollers for transporting arti
thereof will be tripped by the articles passing
thereunder (see Figs. ’7 and 8). Fixed between
latch |63 yieldably raised by a spring |64 so that
it is held in contact with the teeth at the periph
ery of the ratchet wheel. When the bar _|6| is
20
'I'he wiper arms |12 are connected with the
in which a plurality of successive rollers are sup
ported individually, a pivot for each bracket adja
cent one end thereof, a support on which the other 65
end rests and over which it is slidably movable.
means connecting each two adjacent brackets and
means acting upon one of said brackets for swing
ing it upon its pivot, causing it to slide over the
support therefor, said connecting means simulta 70
neously and similarly moving the other brackets
upon their pivots.
3. In a live roller conveyer mechanism com
prising a plurality of rollers for transporting arti
2, 186,267
cles along a line and an endless driving cable one
run of which is in contact with and rotates the
rollers, means for deflecting articles from the line
comprising means for shifting the angularity of
certain rollers to change the direction of travel
of the articles, said means comprising brackets
in which a plurality of successive rollers are sup
ported individually, a pivotfor each bracket adja
'cent one end thereof, a support `on which the other
end rests and over which it is slidably movable,
means for shifting said brackets with their rollers
upon their pivots and causing them to slide Vover
the supports therefor, and means tripped by arti
cles on the line for setting said bracket shifting
15 means in operation.
4. In a live roller conveyer mechanism com
prising a plurality of rollers for transporting arti
cles along a line and an endless driving cable one
run of which is in contact with and rotates the
20 rollers, means for deñecting articles from the line
comprising means for shifting the angularity of
certain rollers to change the direction of travel
of the articles, said means comprising brackets
in which a plurality of successive rollers are sup
25 ported individually, a pivot for each bracket adj a
cent one end thereof, a. support on which the
other end rests and over which it is slidably mov
able and means for shifting said brackets with
their rollers upon their pivots and causing them to
30 slide over the supports therefor, said means in
cluding a thruster, connections between `said
thruster and said brackets and a trip actuated by
articles on the line for setting said thruster in
operation.
35
5. In a live roller conveyer mechanism compris
ing a plurality of rollers for transporting articles
along a line and an endless driving cable one run
of which is in contact with and rotates the rollers,
means for deñecting articles from the line com
40 prising means for shifting the angularity of cer
tain rollers to change the direction of travel of
the articles, said means comprising pivotally
mounted brackets in which a plurality of succes
sive rollers are supported individually, said cable
45 contacting with each of said bracket-supported
rollers above the pivotal mountings of the brackets
and means for shifting said brackets with their
rollers upon their pivotal mountings.
6. In a live roller conveyer mechanism -compris
3
ing a plurality of rollers for transporting articles
along a line and an endless driving cable one run
of which is in contact with and rotates the rollers,
each of certain of said rollers being mounted in a
bracket pivotally mounted adjacent one end
thereof, strips secured to each of said brackets
adjacent the other ends thereof _and connecting
each bracket to the bracket next adjacent thereto,
and means for positively shifting the angularity
of one of said brackets and the roller carried 10
thereby, said strips simultaneously shifting the
angularity of the other brackets and the rollers
carried thereby.
7. In a live roller conveyer mechanism com
prising a plurality of rollers for transporting arti 15
cles along a line and an endless driving cable one
run of which is in contact with and rotates the
rollers, each of certain of said rollers being
mounted in a bracket pivotally mounted adjacent
one end thereof, strips secured to each of said 20
brackets adjacent the other ends thereof and
connecting each bracket to the bracket next ad
jacent thereto, said strips being of different
lengths, and means for positively shifting the
angularity of one of said brackets and the roller 25
carried thereby, said strips simultaneously shift
ing the angularity of the other brackets and the
rollers carried thereby through varying distances
depending upon the lengths of the strips.
30
8. In a conveyer a live roller section comprising
a plurality of rollersA for transporting articles
along a line and an endless driving cable one run
of which is in contact with and rotates these
rollers, a branch section leading therefrom and
comprising a plurality of parallel rollers extending
at an angle to the rollers of the first-named sec
tion, said rollers of the first-named section being
normally parallel and extending transversely of
the line of travel of the articles and being indi
viduallyA movable about stationary pivots and 40
means for swinging said rollers about said pivots
through various distances from the normal posi
tions, thus changing the angularity and parallel
relation thereof whereby certain of said rollers
assume the angularity of the rollers of the sec
ond-named section and the remainder assume
angularities intermediate that angularity and the
normal position of the rollers.
J. TAYLOR.
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