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Патент USA US2407639

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sépt- 11, 1946.
M; s. GE-rm Em
-
2,407,638
APPARATUS FOR DELIVERING ELONGATED CYLINDRI_C_AL ARTICLES
- . Filed Aug. 14, 1945
u
2 Sheets—Sheet 1'
?iwqzo 5 five-£45406”
ITTOA'NEY
Sept. 17, 1946.
7M. s. GETTIG ETAL
2,40,7?33
APPARATUS FOR DELIVERING ELONGATED CYLINDRICAL ARTICLES
Filed Apg. 14, 1945
2 Sheets-Sheet 2
6542040 Ef/V64-26400/7
2v
.
A TTORNE Y
‘
Patented Sept. 17, 1946
2,407,638
UNITED STATES PATENT OFFICE,
2,407,638
APPARATUS FOR DELIVERING ELONGATED
.CYLINDRICAL ARTICLES
-Martin S. Gettig, Poland, and Harold E. Engelbaugh, Youngstown, 0hi0, assignors to The
' Youngstown Sheet and Tube Company, Youngs
‘
town, Ohio, a corporati on of Ohio
1
Application August 14, 1945, Serial No. 610,802
7 Claims. (C 1. 214_s.5)
Our invention relates to mechanism for con
secutively delivering elongated cylindrical articles
such as pipes, tubes and the like to a conveyor,
table or the like and is particularly directed ‘to
mechanism of that character adapted to deliver
the articles from a heterogeneous bundle thereof
disposed on a suitable support.
During the manufacture and handling of such
articles it frequently is necessary or desirable to
deliver them one at a time from one point to an
other as, for example, from skids on which they
are supported to a conveyor adapted to move
them in a predetermined direction but the
2
but not in a restrictive or ‘limited sense, we will
therefore herein generically refer ‘to said articles
as “pipes”.
Despite the exercise of optimum care in manu
facture, commercial pipe exhibits variation in
wall thickness and straightness with the result
that the location of the center of mass in each of
a given ‘lot of pipe is not always the same and
consequently when they are resting in a bundle
comprising a plurality of tiers some of them fre
quently tend to roll in one direction and some in
another if the bundle is disturbed; our apparatus
is therefore so designed as to satisfactorily per
various types of delivery
or “kickout”
mechanisms as they are frequently called, hither 15 form its intended function irrespective of varia—
tions in the straightness or wall thickness of the
to available for this purpose are in general only
pipes within the_commercial tolerances allowable
adapted to deliver the articles consecutively from
in those respects.
the skids when they are disposed thereon in a
single layer. Hence as it is usual to deposit them
In the accompanying drawings in which is il
to the skids
bundles, as from an overhead 20 lustrated one embodiment of the apparatus,
Fig. 1 is an end or side elevation thereof with
crane, the services of an operative are required
a bundle of'pipe resting on the charging skids
to thereafter ?atten out the bundles so as to
and the parts of the apparatus shown ‘in full
bring the axes of all the articles into a plane
lines
in the positions assumed preparatory to de
parallel with the surface of the skids preparatory
a to their being removed from the latter._
It is therefore a principal object of our in~ ‘‘
vention to provide novel apparatus adapted to
selectively deliver elongated cylindrical articles,
livery of one of the pipes, the ‘same parts ‘being
also shown in ‘broken lines in the positions as
sumed after its delivery;
‘
Figs. 2, 3, 4 and 51a-re respectively fragmentary
diagrammatic views progressively showing the
more particularly pipes, tubes and the like, from
a heterogeneous bundle thereof deposited on,‘ so various positions of the pipe lifter as a pipe is
being delivered and the approximate positions of
skids or other suitable supporting means proxié‘
the pipes in the bundle corresponding to 'dif
mate the apparatus without the necessity of ?rst
ferent positions of the lifter during its upward
arranging them in a single layer ‘upon the skids.
movement; and
'
A further object is the provision, of apparatus
Fig.
6
is
a
fragmentary
somewhat
diagram
of the character aforesaid which is- of relatively
matic top plan ‘View of the apparatus on a much
simple design and construction and suitable for
smaller scalethan the other‘flgures.
convenient installation in pipe, tube and other
Like characters of reference are used ‘to desig
mills in which articles of the type which‘it is
nate the same parts throughout the drawings.
designed to deliver are customarily produced
As shown, the apparatus comprises an actuat
and/or handled and which may be operated 40
either independently or in suitably coordinated " ' ing unit such as a motor I, energizable through
a manually or automatically actuated switch,
relation with other apparatus associated there
with.
driving through a suitable reduction gear 2 a
Other objects, purposes and advantages of our
crank 3iinterconnected by a pitman 4 with .an
invention will hereinafter more fully appear or ,. I other crank 5 ?xed on a shaft 6 extending below
be understood from the following description of
and transversely of a series of laterally spaced
charging skids S or other pipe supporting means
in the accompanying drawings, this application
which ‘are inclined slightly downwardly in the
being a continuation-in-part of our application
direction in which the pipes are to‘ be delivered
for United States Letters Patent Serial No.3, ‘by ‘the apparatus to, for example, rolls R of a
508,928, ?led November 4, 1943.
7
conveyor generally designated C adapted to ‘move
While the mechanism of our invention is
the pipes longitudinally as they are consecutively
adapted for delivering many kinds of cylindrical
received by ‘it. It will be understood, however,
articles it ,is of especial utility for handling pipes
that delivery of the pipes may be made to a table
and tubes and for convenience of description,
or the like instead of ‘to ‘a conveyor in accordance
a preferred embodiment thereof as illustrated
2,407,638
3
with the treatment to which they are to be sub
jected after leaving the delivery apparatus.
Shaft 6 is journaled for oscillation in suitable
4
position, and a bundle of twelve pipes will nor
mally come to rest against the stop substantially
in the arrangement shown in Fig. 1, that is, with
?ve pipes in the lowest tier, four in the second
With the pipes in this
pedestals ‘I and two or more arms 8 are disposed 5 and three in the third.
along the shaft at appropriate intervals, each
such arm being connected by a movable link 9
with a lifter l0 beveled downwardly and for
wardly at its upper end It!’ and reciprocal in
position if the motor be suitably energized in
a direction to cause crank 5 to move rearwardly,
the resultant upward movement of the lifters is
effective to raise the foremost pipe P’ in the
an; upwardly and rearwardly inclined guide H 10 lowest tier until it ultimately attains the approxi
conveniently seated on the floor F of the mill
mate level of the adjacent ends of delivery skids
which also supports the standards I2, l3 which,_
S’ (Fig. 5) and starts rolling down them to
in turn, support in part the charging skids S
?nally pass to conveyor rolls R or other point
and the similarly inclined delivery skids S’ which
of delivery. During substantially the first quar
latter terminate proximate the conveyor 0 at
ter of this upward movement of the lifters pipe
15
their forward ends; as shown, the skids and
P’ is correspondingly moved to about the level
_ standards are formed of pipe but of course they
of the second tier of pipe, the leading pipe in >
may equally well be formed of I-beams or the
that tier substantially to the level of the third
like. Each inclined guide H is rigidly braced by
tier and the leading pipe in the latter to a still
a vertical web ll ’ and all the other various parts
higher level approximately as shown in Fig. 2;
are preferably of rugged construction to with
as the ends of the lifters reach the level of the
stand the heavy duty necessarily imposed upon
third tier the then leading pipe therein is forced
them because of the weight of the pipes especially
by pipe P’ to a still higher level and the other
if of relatively large diameter and length.
pipe formerly at that level is forced upwardly
vIt will of course be appreciated that the lifters
and rearwardly (Fig. 3) and as the lifters con
act simultaneously on each pipe at spaced points 25 tinue to rise the now leading pipe in the fourth
throughout its length and that a sufficient num
tier is still farther raised and crowded backward
ber are provided to afford it appropriate support
over the other pipe therein until it ultimately
while it is being raised from skids S and dis
rolls down the rear side of the bundle (Fig. 4)
charged onto skids S’; thus since all the lifters
30 and comes to rest on the charging skids behind
are alike a description of the arrangement and
operation of one is equally applicable to the
the last pipe in the lower tier (Fig. 5). The
lifters, having now reached their uppermost posi
others.
tion and pipe P’ being started down the delivery
Shaft 6, pedestals 1 and other mechanism as
skids, during the ensuing forward oscillation of
sociated therewith may conveniently be disposed,
crank 5 are retracted to initial position thus per
35
as shown, in a pit below the level of the mill
mitting the pipes to rearrange themselves in a
floor and the motor and reduction gear located
somewhat different con?guration with the lead
on the latter considerably to the right of stand
ing pipe in the lower tier resting against the upper
ards I2 (Fig. 1) or at any other suitable loca
ends of standards l5 and thus in a position for
tion either above or below its level, the ?oor, in
delivery to the charging skids upon the next up
40
case the shaft is located below it, being provided
ward movement of the lifters.
with suitable slots respectively adapted for the
Mention has been made of the fact that guides
passage of crank 5 and lifters H] as well as for
I5 are inclined rearwardly and consequently over
the outer ends of arms 8 when they move to the
hang the forward end of the charging skids by a _
broken line position of Fig. 1, during recipro '15 considerable amount, and while the angle at
cation of the lifters. However. the speci?c rel
which their rear faces are disposed is capable of
ative location of the various parts to which ref
considerable variation, it preferably approximates
erence has just been made is entirely a matter
30° to the vertical and so corresponds to the angle
of choice and will usually be dictated by the
' formed by a plane tangent to the side of a bundle
layout of the mill, height of the charging skids 59 of pipe arranged in a series of tiers in each of
above its ?oor and other like considerations;
which there is one less pipe than in the sub
Support for‘ the forward end of each skid S
jacent tier. Lifters ID are also rearwardly in
is conveniently afforded by a standard [5 to
clined at substantially the same angle as the
which the end of the skid is welded or otherwise
guides so their paths of reciprocation are parallel
?rmly secured. the standard projecting above the 55 to the rear edges of the latter, suitable clearance
skid for a distance preferably approximating the
being provided between the lifters and guides. ‘
diameter of the pipe the apparatus is designed to
This rearward inclination of these parts is a very
handle. while from the upper end of each stand
important feature of our invention for the rea
ard is extended an upwardly and rearwardly in
son that it negatives any tendency of any of the
clined ‘guide. It which may be welded'to the 60 pipes in the upper tiers of the bundle to roll for
standard and likewise to the rear end of the
wardly instead of rearwardly when they are
superiacent delivery skid S’ to form a support
forced upwardly by the pipe P’ resting on the ends
therefor, the forward end of the skid being car
of the ascending lifters even though their walls
ried on a standard l1. However the guides may
are heavier on one side than the other or the
be made integral with their respective standards 65 pipes are not exactly straight. It results it is
l5 if desired and. if preferred, the skids can be
impossible for any pipe other than that which
supported in any other way.
is directly engaged by the ends of the lifters to
The parts of the standards above the charging
be discharged onto the delivery skids since any,
skids thus form a stop to limit the movement
such pipe as P" (Fig. 4) which reaches the top
of the leading pipe in the bottom tier of a bundle 70 of the bundle before pipe P’ is in condition for
of pipes P as they'roll down the charging skids
delivery to skids S’ can only roll rearwardly even
after being deposited thereon by an overhead
though its center of mass is not coincident with
crane or in any other way, the lifter ID of course
its axis or the pipe is considerably curved from
being then in lower or retracted position in which
end to end. It follows that the rearward incli
the highest point on its upper end I0’ is just 75 nation of the guides must be suf?cient to posi
below ‘the level of skids S and crank 5 in full line
5
‘2,407,638
6
tively accomplish this result at least within the
and desire to‘ ‘protect by Letters Patent of the
United ‘States:
1. Apparatus for consecutively delivering elon
tolerances permitted as to stra'ightness and ir
regular wall vthickness and, as stated. we have
found that an inclination approximating 30° is
adequate for the purpose.
gated cylindrical articles from a bundle thereof
comprising horizontally inclined article support
Moreover, while the apparatus is preferably so
constructed that guides it are spaced somewhat
from the pipes in the upper tiers of the bundle
when the ‘lifter is in retracted position, the for
wardly and downwardly inclined surface it’ at
‘the upper end of the lifter is effective while the
lifter is ascending to maintain pine P’ in en‘
gagement with the guides and prevent it from
ing means, horizontally inclined delivery means
extending forwardly therefrom but at a higher
level with ‘their rear ends overhanging ‘the sup
porting means, stops adjacent the forward ends
of the supporting means for arresting movement
of the articles as they roll down the latter, rear
falling backward from the ‘lifter irrespective of
ally spaced lifters reciprocal in paths parallel to
the guides, and means :for reciprocating the lift
ers from a position in which their upper ends
are ‘below the level of the supporting means to
wardly inclined guides depending from proxi
mate the rear ends of the delivery means, later
the number of tiers in the bundle so the delivery '
of ‘the leadingr pipe in the ‘lower tier is success
fully accomplished irrespective of whether there
is ‘but a single tier of pipes on the charging skids
one in which they are above the level of the rear
ends of the delivery means to thereby lift an ar
or a plurality of tiers. Naturally as the pipes are
consecutively delivered to skids S’ the specific 20 ticle to the level thereof from the supporting
arrangement of the remaining pipes in the bundle
means.
will alter until at last there may be only a single
'2. Apparatus for consecutively delivering elon
tier comprising a plurality of pipes and ?nally
gated cylindrical articles from a bundle thereof
only one pipe in that tier but despite this, for
comprising horizontally inclined article support
the reasons just pointed out, the apparatus is 25 ing ‘means, horizontally inclined delivery means
as effective to deliver the last pipe ‘from the
extending forwardly therefrom but at a ‘higher
bundle as the ?rst since its operation is in no
level with their rear ends overhanging the sup
way dependent on the presence of any particular
porting means, stops adjacent the forward ends
number of pipes in the bundle or their exact rel
of the supporting means for arresting movement
ative arrangement therein.
30 of the articles as they roll down the latter, rear
Since the cycle of operations incident to the
wardly inclined guides depending from proxi
delivery of each pipe is initiated by the upward
mate the rear ends of the delivery means, later- ,
movement of the lifters from the position of Fig.
ally spaced lifters reciprocal in paths parallel to
the guides, and means for reciprocating the lift
1 and completed when they return thereto, under
normal conditions motor I will be energized at 35 ers from a position in which their upper ends are
the beginning and deenergized at the end of
below the level of the supporting means to one
each cycle by suitable control of the current sup
in which they are above the level of the rear
plied thereto and it will ‘be appreciated that this
ends of the delivery means, the said ends of the
control may be effected through the medium of
lifters being forwardly and downwardly inclined
suitable switches (not shown) either manually 40 whereby on their ascending stroke they are ef
actuated by an operative stationed at some suit
fective to move an article from the bundle up
able point or automatically actuated in coordi»
wardly along the guides until it reaches a point
nated relation with the functioning of other ap
at which it can roll down the delivery means.
paratus designed for the performance of a de~
3. Apparatus for consecutively delivering elon;
sired operation on the pipes so that the latter will 45 gate-d cylindrical articles from ‘a bundle thereof
be delivered in properly timed sequence to the
comprising ‘horizontally inclined charging skids
conveyor and then transported by it to said ap
adapted to receive and support the bundle, ‘hori
paratus.
Thus by the employment of our invention the
hitherto existing necessity for arranging pipes in
a single plane on the charging skids after they
have been deposited thereon in a bundle com
prising several tiers to thereby condition them
' zontally inclined delivery skids disposed at a
higher level than the charging skids extending
50 forwardly from and having their rear ends Dar
for subsequent delivery is entirely obviated, since
as soon as the bundle as a whole has moved down 55
the charging skids until further progress is
blocked by the stops formed by standards IS the
pipes are ready to be individually discharged
tially overhanging the latter, laterally spaced
stops adapted for engagement by the leading
article in the lower tier of the bundle as the
articles roll down the charging skids, guides ex
tending downwardly and forwardly from the rear
ends of the delivery skids to approximately the
level of the upper ends of the stops, rearwardly
inclined laterally spaced lifters reciprocal in
from the bundle at any desired rate. As far as
paths parallel to and in rear of the guides from
we are aware no other feeding mechanism adapt 60 a position in which their upper ends are below
ed for practical employment in pipe mills and
the like is satisfactorily operative to effect this
result.
While we have herein described and illustrat
ed with considerable particularity one embodi 65
ment of our invention we do not desire orintend
to thereby restrict ourselves speci?cally thereto
as various changes and modi?cations in the form,
construction and arrangement of the instrumen
the level of the charging skids to one in which
they project above the level of the delivery skids,
and means for reciprocating the lifters to raise
the leading article in said lower tier sufficiently
to enable it to roll down the delivery skids.
4. Apparatus for consecutively delivering elon
gated cylindrical articles from a bundle thereof
comprising horizontally inclined charging skids
adapted to receive and support the bundle, hori
talities comprised therein will readily suggest 70 zontally inclined delivery skids disposed at a
themselves to those familiar with the art and
higher level than the charging skids extending
may be made if desired without departing from ' forwardly from and having their rear ends par
the spirit and scope of the invention as de?ned
tially overhanging the latter, laterally spaced
in the appended claims.
stops adapted for engagement by the leading
Having thus described our invention, we claim 75 article in the lower tier of the bundle as the arti
2,407,638
7
_ cles roll down the charging skids, guides ex
tending downwardly and forwardly from the rear
ends of the delivery skids to approximately‘the
level of the upper ends of the stops, rearwardly
inclined laterally spaced lifters reciprocal in
paths parallel to and in rear of the guides from
8
therefrom and having their rear ends overhang
ing the charging skids, guides extending down
wardly and forwardly from the rear ends of the
delivery skids to the upper?ends of the stops, lat
erally spaced lifters in rear of the guides recip
rocal in paths parallel thereto, the upper ends
of the lifters being downwardly and forwardly
a position in which their upper ends are below
inclined, and means for, simultaneously recipro
the level of the charging skids to one in which
eating the lifters from a point at which their said‘
they project above the level of the delivery skids,
ends are below the level of the charging skids
10
and means for reciprocating the lifters, the up
to one'in which they are at least partially above
per ends of the lifters being forwardly and down
the level of the rear ends of the delivery skids,
wardiy inclined whereby on their ascending
said lifters being adapted on their ascending
stroke they are effective to carry the leading
stroke to liftthe leading pipe in the lower tier
article in the lower tier upwardly in engagement
with the guides to a point at which it can roll 15 of the bundle and carry it upwardly, in engage
ment with the guides until it reaches a posi
forwardly down on the delivery skids.
'
tion
at which it can roll down the delivery skids,
5. Apparatus of the class described comprising
horizontally inclined charging skids adapted to
the angle of inclination of the guides being su?i- '
skids adapted for engagement by the leading pipe
wardly onto the delivery skids.
cient to prevent any pipe superjacent that being '
support a heterogeneous bundle of pipe deposited
thereon, stops adjacent the forward ends of said 20 lifted directly by the lifters from rolling for
in the lower tier of the bundle as the pipes com-,
prising it roll down the skids, downwardly in
clined delivery skids disposed at a higher level
,
“ .
'7. Apparatus of the class described comprising
horizontally inclined charging skids adapted to
support a heterogeneous bundle of pipe deposited
than the charging skids, extending forwardly 25 thereon, stops adjacent the forward ends of said
skids adapted for engagement by the leading
therefrom and having their rear ends overhang
pipe in the lower tier of the bundle as the pipes
ing the charging skids, guides extending down
comprising it roll down the skids, downwardly
wardly and forwardly from the rear ends of the
inclined delivery, skids disposed at a higher level
delivery skids to the upper ends of the stops, lat
than the charging skids, extending forwardly,
erally spaced lifters in rear of the guides recip
rocal in paths parallel thereto, the upper ends
of the lifters being downwardly and forwardly
inclined, and means for simultaneously recipro»
cating the lifters from a point at which their
said ends are below the level of the charging
skids to one in which they are at least partially
above the level of the rear ends of the delivery
skids, said lifters being adapted on their ascend
ing stroke to lift the leading pipe in the lower
tier of the bundle and carry it upwardly in en
gagement with the guides until it reaches a posi
tion at which it can roll down the delivery skids.
6. Apparatus of the class described compris
ing horizontally inclined charging skids adapted
to support a heterogeneous bundle of pipe depos- ,
ited thereon, stops adjacent the forward ends of
said skids adapted for engagement by the leading
pipe in the lower tier of the bundle as the pipes
comprising it roll down the skids, downwardly
inclined delivery skids disposed at a higher level
than the charging skids, extending forwardly
therefrom and having their rear ends overhang-v
ing the charging skids, guides extending down
wardly and forwardly from the rear ends of the
delivery skids to the upper ends of the stops, lat
erally spaced lifters in rear of the guides recip
rocal in paths parallel thereto, the upper ends
of the lifters being downwardly and forwardly
inclined, and means for simultaneously recipro
eating the lifters from a point at which their said
ends are below the level of the charging skids to
one in which they are at least partially above
~ the level of the rear ends of the delivery skids,
said lifters being adapted on their ascending
stroke to lift the leading pipe in the lower tier of
the bundle and carry it upwardly in engagement
with theguides until it reaches a position at
which it can roll down the delivery skids, the
angle of inclination of the rear faces of the
guides being at least 30“ to the vertical.
,MARTIN S. GETTIG.
V
HAROLD E. ENGELBAUGH;
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