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Патент USA US2133932

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L.~v. wHl's'rLER ET Al. »
2,133,932" >
i Filed Jan. 1o, 195e
9 Sheets-Sheet 2
- sq.
Fla. 3
Oct. 18, 1938.
l.. v. wi-ns'rLER ET ÁLv
_253133,932 .
Filed Jan.l 1o, '1956
_9 sheeîs-shee; s
Od'. 1s,
1938.* '
|_.`v.` wHl'sTLER ÉT AL ,l
r ' , Vg,133,932 j
Filed Jan, 1o„193e`A
ï ß sheets-sheet 4
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» Oct. 18, 1938.
vFiled Jan. 1o,A 1956
`è» sheets-sheet 5
nil. wil MII WI
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oct. -18, 193s.
L. v.wHxsTLER'ET`A1.
2,133,932 *
Filednanf'lo, 195e ’
Fla. Il
9 sheets-sheet 6 _
` Oct. 1s, 1938.>
l.. v. wHlsTLER ET AL
Filed Jan. l0, 1936
9 sheets-sheet 7 '
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1.53 /34
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Oct. 18, y1938. '
L. v..wHxsT|>_ERÁE1-_A_l_
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vFiled Jan. 1o, 195e
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Oct. 18; 1938.
Fivied‘Jan. 1o, 195e
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Patented oet. 18,1938
, 2.133.932
Lawrence V. Whistler, Kenmore, and
ll. .`
assignors to Fedders Manufacturing Company,
nic., ammo, N. r.
» » Saabye and William E. Tingler, Bnßalo, N. Y.,
Application' January 1o, 193s, serum. 58,498'
7 claims. - (ci. zii-s4)
This invention relates.V to a machine for assem
bling. :uns and tubes in iixed relation to provide
coil banks which may be utilized for a variety
of purposes in the refrigerationl and heating arts.
„Fig 15 is an end elevation of the tube‘end or
the tube positioning unit.
'f l
Fig. 16_is a front view of a
Fig. 17 is a diagrammatic side elevation of a
The invention more particularly relates to the iinned coil wherein'the iins are regularly spaced l
fabrication of coils of the cross fin type, wherein. on the tubes in accordance with the machine
rectilinear fins are positioned transversely on the setup shown in the- drawings.-
' tubes in resilient engagement to provide struc
tural and thermal cooperation therebetween.
l0 ` The`machine is devised so that the >ñns are
continuouslyk moved, and, during their convey
ance, they are successively ~applied to the- tubes,
which remain stationaryexcept for an intermit:
tent retrogressive action which determines the
l5 spacing of the ñns. .3 This action is accomplished
by the provision of- a novel continuous .conveying
mechanism for the ñns, which,in cooperation
- Fig. 18 is aside elevation ofa finned coil hav
ing irregularly spaced ilns.
The machine, as shown in Figs. 1 and 2, com- l0v >
lprises generally a ñn applying .unit 20 andv a
tube positioning unit 2|, the former including an
endless conveyor system for carriages 22, which'Í
are loaded manually at theright hand end of
the machine, eachreceiving a fin F, which- isA lli4
subsequently forced upon spaced tubes T. ‘ Com
mon ends of the tubes are positioned in the unit
2|, which unit, as hereinafter described, inter- '
the production of coils of any commercial size, ` mittently moves the tubes to the left and deter
mines the spacing .of the fins on the tubes. ,f
20 with the attention of but a single operator.
\with an effective feed or loading device, permits
In Fig. 16 it will .be observed .that the ilns XIl"
adjustable mechanism for varying the spacing ' are formed with iianged `openings O which are
of 'the Qns to any desired degree,'either in uni ’capable of resiliently engaging about the tubes 'I'.
Inasmuch aslthe _internal diameter oi the iianße. `
form or staggered relation.
` i
- Another feature of the invention resides in an
The- more speciiic features of the invention,
drawings, wherein:
is slightly less than th'e‘dlameter of the tube, lt 2li
including various adjustable means for insuring has been found expedient to provide each; tube
precision of the iin assembly, are completely set -with pointed mandrels 23 or 2l which insure .the .
forth in the accompanying specificationV and entry of the tubes in the ña'nges without rupture
ofthe metal.
1 is a plan` view of the machine.
Fig. 2 is a side elevation thereof.,
Fig. 3 is an end elevation of the cam end of
the'ñn applying unit.
Theun supply'isdis'posed on a -feed table S at .t0
the rightl hand end (Fig. 2) of ¿the machine , f
where they are strung on a pairA o_f feed rods B. n '
The' extremities voi' the . rods arek removably ¿
Fig. 4 is an enlarged fragmentary section- onv mounted in brackets 30 onthe table whence they _'
extend through ilange‘openings vin the fins and 35'
Fig. 5 -is an enlarged fragmentary section on over` the finapplyingunit of the machine. I'I‘wo
of vthe tube..mandi°els„_2l are longer ,than the
the'lineä-S of Fig. 1.
_remaining mandrels 23, and they are of tubular
Fig. 6 is a section on the line 8`-6 ofFlg. l.;
aB'the linel-Iof Fig. 1.-
j Fig. 'l is an enlargedv end'elevation of the tail
`40 portion of a conveyor carriage. -
~F‘ig. 8 is an enlarged side elevation of the tube
construction (Fig. 1'1),` permitting the rods to be
slidably received therein `and projected thence 40 ,
through the accompanying tubes for nearly the
lengthy of the `fin applying unit.A With-„this ar
positioning unit with portions shown in section.
thezi‘ins may be manually fed alon? M
Fig. 9 is an end elevation ofthe tube positionà ‘ rangement
the rods to a> position wherel they each are en- f
ing unit with portions of the gear housing broken gaged _by a carriage 22 ‘and conveyed in the 4&54
45 away to show the drive mechanism. ‘ _
direction ofA the mandrels‘for subsequent appli
Fig'.`_-10_,is a fragmentary sideelevation‘ of the cation on the tubes as hereinafter described.
drive end of the ,tube positioning unit.
The fin applying unit, which will bel first .de
Fig. 11 is an enlarged elevationof one of the ^` scribed, is supported on three pairs of pedestals
50 bell cranks ofthe ratchet mechanism. l '
25, 26'and 21, the former being providedvwith 5o
Fig'. 12 is a section on the line l2-.I2 of Fig. 9. bearings 28 -for receiving a driven shaft 2l having
Fig. 13 is an enlarged fragmentary section on large sprockets 3l keyed thereto; 'I‘he pedestals
21 are formed to receive slidable" bearings 32
the lineA |3--I3 of Fig. 8.-.
_' fi
Fig. 14 is a fragmentary plan-view on an en'
55 larged scaleof the saddle nut lockímechanism.
which are longitudinally adjustable by means of
screws 32 and in which islournalled an `idler 55
shaft _34. The shaft 34 likewise carries spaced
sprockets 35 which cooperate with the sprockets
3| to receive endless chains 38 of the roller type.
A suitable drive mechanism is provided for the
chains comprising a reducing gear mechanism 31 l
- operated by a motor 38 and terminating in a shaft
40. A driy/"e'sprocket` 39 is keyed to the shaft 40,
rail 18 (Fig. 6) extends along the medial line of the‘machine, and it is supported on cross beams
19, 8| and 82 mounted betweexrthe pedestals 25,
>26 and 21, respectively. This track in effect, is a
horizontal continuation of the circular track 15, f
and it is connected to it by a coupling 83, which ,
and it is connected byV a roller vchain 4| to a is bolted to the track 15. The coupling is formed
driven sprocket 42, which' is keyed to a protruding 1 with a projecting portion 84, which is slidably '
DOrtion of the driven shaft» 29. It will be noted received in the forked end 85 ofthe rail 18,` and it
that ,the direction of movement of the driven is secured Athereto by a bolt 86, which extends 10
through a horizontal slot 81 formed in lthe cou
shaft is counterclockwise (Fig: 2) so that the pling.
This telescopic structure permits'the ad- upper reaches or sections of the chains, as indi
of the effective length of the track when
cated by the numeral 43, move toward the tube
the shafts 34 are moved by the bearing screws 33
15 unit.
to tighten'the chains.
` 'I'he carriages 22 are transversely positioned
’I'he front or platen ends of the carriage are also
between the chains and are each mounted for guided during this movement by means of pairs
movement therewith by means cfa shaft 44
which extends through lugs 45 thereof. 'I‘he ends
of each shaft protrude from the lugs and extend
through bearings 46 in the links of thechain 36,
guide rollers 41 or 48, and a crank arm 49.
of spaced yrails 89, 89a and 9|, 9|a, which extend
between the pedestals 25, 26 and 21, and which
are provided with suitable clearance holes 92 for 20
receiving securing screws 93. Slight adjustment
will- be observed that the shaft is keyed to both
the carriage lugs _45 and the crank arms 49, while
25 it is rotatably journalled in the >chains 36 (Figs.
of the rails is provided for by vertical screws 94
locatedin each pedestal so that the rollers 41 and
containing spaced tube clearance notches 52.` As
the carriages move horizontallywith the upper
30 sections 43 of the chains, the lower extremities of
indicated by the numeral 95, and the rails' 9|, 9|a
formed Vwith complementary portions 96, 91, re
48 may be received with slight clearance between _
3 and 5). Each carriage is formed with an up- ‘ the rails 89, 89a and 9|, 9|a, respectively. It 25
will be observed that the roller'48 is flanged as ,
right portion 50 to'which is secured a platen 5|
`the notches support the lower bank of tubes and
spectively, so that lateral guidance of the carriage
is also attained,(Fig. 5).
Fig. 4 there is'shown the mechanism for tilt
retain them in‘a horizontal position (Fig. 3). At ingInthe
carriage when it approaches the end of
the feed end of the machine, where the carriages . _its horizontal movement along the tracks. The.v
move radially with the sprockets 35, it will be seen
central rail 16 terminates a spaced distance from
that a pair of ’notches receives the f_eed rods R the
pedestals 25, and at this point it is provided 35
with ample clearance so that the individual fins F
with a raised insert 981 (Figs. 3 and fl), which is
on the- rods may be `successively engaged by the slidably
engaged by the follower insert 6_5 of the
platen 5| of the moving carriages and conveyed
therewith (Fig.'6). '
carriagel during'ltransit, thus relieving the tail
The carriage is also formed with a tail portion.
55 to which is secured a _block 56 having a roller
51 mounted therein by a pin 56. VAs more clearly
shown in Fig. '1, the block is secured by screws
59 and _6| which extend through suitable slots
45 therein.
Vertical adjustment of the block is at
tained by a screw 62 mounted in a strap 63 on the
tail and vertically engaging the top of the block.
A follower insert 65 is mounted in a slot 66 in the
block 56 by studs 61, and it is also engaged by a
50 vertical screw 66, whereby its vertical position
relative to the roller may be varied to a slight
_ degree. ¿
roller 51 of the weight of the tail portion. Obvi
ously, upon reaching the extremity of the rail 16,
the inserts disengage, and the carriage is then
free to swing v clockwise about the pivotal con
nection on the chains, with the platen 5| moving
from its previous vertical position. It is intended,
however, to control this gravitational movement
through theL medium of the cranks 49 so that it
is accelerated‘at the beginning of the drop and
decelerated as~ the platen approaches a horizon
tal position to prevent unnecessary oscillation.'
This control mechanism (Figs. 4~and 5) con
sists of a box cam |00, secured in a` recessed
The carriages occupying the lower reaches or
sections 1| o'f the chain are permitted to swing
portion | 0| of each pedestal 25'and formed of
cam plates |02 and |03. A'cam-roller |04 is
are supported by longitudinal guide rails 12 which
are carried by suitable brackets 13 secured to the
upper surface |05 g-of the plate |03 ‘and engaging
the vertical surface |06`of the plate |02. The
55 freely in their pivotal mounting between the mounted on the extremity of each crank `arm 49,'
and the plates |02fand |03 are positioned directly
chains. These(l portions of the chains, however, in the path thereof, the roller passing over the
pedestals 25, 26 and 21. .The carriages occupying
all >other portions of the chains, however, >are
' guided accurately, for example, following a par
ticular carriage as itv leaves the lower reaches and
enters'the arcuate path of the idler sprockets 35;
it will be observed that a semi-circular track 15
is positioned on'thefshaft 34, which, during the:
transitional movement’of the carriage, is engaged
by the tail roller 51. The Vtrack is formed with a
hub portion 16 through which the shaft extends.
Collars 11, secured to the shaft, retain the track
70 in its central position.
A iin F is’engaged by the platen 5| during this
movement, and thecarriage later arrives at the
upper, horizontal, reaches of the chain where the
platen is maintained in 'a verticalposition for the
75 remainder of. its Ahorizontal travel. A horizontal
cam groove 4-||).1 `which is formed between the
plates, and of which the surface |06vis a part, 60
curves downward and outward toward the tube
positioning unit. In this locale the shaft 44 is
conveyed radially with the sprockets 13|, and the f
chain bearings 46 thus become. the pivots about
which the crank arms 49 operate at a rate of
movement determined' by the curvature of the
cam. groove |01.
To assure the accurate translation of move
ment of the cam rollers |04 ‘from the horizontal
to the vertical, they are caused to pass over
spring pads |08 which are each mounted for
vertical movement in a slot |09 in the cam plate`
|03 (Fig. 5)., `These members are formed with
angular surfaces ||| over which Athe rollers |041
pass, thus causing .their depression intothe slots 'l5
. 9,133,939
cam surface |56Yon the pawl (Fig. 11). Inas
much as the "surface |50._ is inclined relative to
the head |55, the thrust it receives causes the
rotation of the pawl into operative position with
suit of their impact with the plate |02.
The path of movement of the tail `roller of the
10: riage is similarly shown, vwhere it will bev noted
that shaft 44 follows its fixed radial path with
.the sprockets 3|', while the cam roller |04 is
drawn thereby through the >cam groove |01, as
' nailed in a bearing |64.
Upon leaving the zone of the cams |00 the ca_r
riage assumes its inverted position on the lower
reaches of the chains preliminary to the recur
rence of the cycle described.
' ‘
the wheel |40.
A gear box |51 1s secured to the leg m ' (
10 and 11) , 'and it contains similar ratchet drive
'gears |50, connected» by a pinion |50, one gear
being keyed to a shaft |60 journalled in bearings
-|6| and |02 in the box structure, and the re
maining gear keyed'to a stub shaft |60 lour
` carriage is- indicated by the dotted line ||3 in
Fig. 4, and an intermediate position of the car
crank, and each having a head |55 engaging a ‘
which might otherwise be occasioned as the re
indicated by the numeral ||4.-
actuated plunger |54, suitably mounted in _each
|00 against the thrust of springs ||2. After the
passage of the rollers, the „pads |00 immediately
are restored to their elevated position and thus
prevent retrograde movement of the rollers,
The tube positioning unit 2|, which deter
20 mines the spacing of the fins, is disposed adja
The pinion |505 is ro
tatably mounted on a stud |65.' The shafts |60
and |60 protrude from the box and‘receivecrank
discs |66 and |61 formed with radial slide bear
ings' |60 and |60, respectively (Figs. 8.and 0).
The slide >bearings each receive an'adjustable
slide |1|, having a protruding stem |12`fo? re-> 20
cent the pedestals 25, and it includes an eich-_ ceiving a shouldered >clamp |13 and a nut.|10
gated bed |20 mounted on legs |2| and |22, and
(Fig. 12). Each slide is-connected to one of i
connected to the pedestals 25 by brackets |23. \ the arms of the bell cranks |50ljand |5-| by con
necting rods |14 and |15, respectively. These
rods are/formed vwith eyes- |16 and |11, respec 25,
scribed control cam mechanism for the carriages Vtively, which rotatably 'engagey the shouldered
'I'he leg .|22 is formed with a curved vcam portion
25 |24 which cooperates with the previously de
22 by guiding the tail rollers 51 (Fig. 4) to` pre
clamp |13 of eak ` slide, vand their remaining ex
tremities are sli4 bly received in the pivot blocks
¢ ` vent violent swinging of the carriages,
The bed is formed with parallel rails |25 on ' |53 where they are fixed by set screws |10. . e
'I‘he train of mechanisml leading ’from the gears 30
30 which a saddle |26» is mounted for longitu
dinal movement by means of slide bearings, |50 to the screw |31 is driven from the shaft 40 v
which include grooves |21 complementary with (Figs. 1 and 8)r by means of a gear connection
the rails and strips- |28\ secured to the saddle.
The saddle is formed with a vertically disposed
bracket portion |20 to which a thrust plate |30
is secured by means of finger pieces |3| and |32
(Fig. 15). Vertical adjustment of the plate is
attained by adjusting screws |33 which are
mounted in tapped lugs |34 on the ,saddle |26.
|00 with the shaft |60. For thepresent pur
poses the gear ratio isfc'alculated" so >that upon
each passage of a carriage 22 vthrough a fixed 35
point, the ratchet drive gears |50 make one-half
of >a complete revolution, and correspondingly,
one complete «stroke of each rod |14 and |15 is at
tained duringra complete revolution of the gears.'
40 The plate |30 serves as a mounting for one |50. Asa result, the pawls |52 engage and move
end of the tubes T which are engaged in spaced l the-ratchet wheel |40 and attached gear |44 `a
sockets |35 located therein, the spacing of the fractional degree determined by the length' of
sockets being identical to the spacing of the each rod stroke, and this movement is in turn
imparted to the screw |31 through the pinionlv> _
flanges in the fins F.
The saddle is driven rearward in intermittent ' |43 to the end that the saddle 126 is caused _to l45movements timed' to occur immediately after move rearward on its rails |25.
It’will be observed that the driving strokes of I
each of the carriages 22 enters into its transla
the rods |14 and |15 occur at 180° intervals due
mechanism vfor effecting the movement of the
saddle includes a screw |31, which is`1'nounted
to the positioning of the slidebearings |60 and
longitudinally in the bed |20-in radial bearings
|38' and also provided with thrust bearings |30
mechanism, ‘the screw |01 is actuated bya rod
stroke, the strokes being timed to occur alter
tory movement as previously described.
|60; thus. as each carriage22 passes its-cam
` which bear against the face of the bearings |30. ' nately, one stroke per'each passage of a carriage.
'A split nut |40, which will hereinafter be more
A65 fully described, is secured to the saddle, and it
engages the screw |31; thus, it will be apparentl
that rotation of the screw will produce the move?~
ment of the saddle along the> rails |25.
The'extremity |42 vof the screw |31 receives
Due to a possible `variety of storting positions "
forthe saddle |26,.it has been found expedient 55
to provide means lfor detaching _it from _the screw
|31 so that it may be positioned at any suitable `.
station along the rails |25 prior to reengaging f
the screw for'operation. Thus, as shown in Figs.
a pinion' |43, which in turn meshes with a gear 8, 13 and 14, the nut |40 is formed'of halves |0|
_|44, having a hub portion |45, .which is rotat- _ lwhich are secured to guides |02, which' in turn
- ably mounted on a stationary shaft` |46. A gear H are mounted for transverse'sliding movement on
casing |41 encloses the pinion and gear. and;it
is secured to the bed |20 and pedestal |2|' (Figs.
guide rails |03 formed in the saddlestructure.”
A plate |04 is secured to the‘saddle immediately 1
8 and 9) .- A coupling |48 is secured to-the gear above this structure, and it is formed with a
hub |45, and it protrudes from the casing where , shouldered circular bearing |00, which receives a
it> receives a ratchet
wheel |40, which ~is secured' , complementary -lock disc |05. The disc is formed
' Bell cranks |50 land |5|~ are likewise rotatably'
76 mounted on the fixed shaft |46, andthey are
each provided with a pawl |52 and a pivot block
|53> secured` to' their separate arms. The pawls
with helical grooves |00 which each engage a pin
|01' secured in the guides, and it additionally is>> `
` provided with a handle |00.
i .
>In the position shown in- Figs.? 13 and' 14, the y
halves of the nut |40 are in their-operative posi,
|52 engage the ratchet wheel fordriving action v . tion in engagement with the screw~|31, _and with i
the disc |05 locked against rotation by the en
they are urged into engagement bya spring vUitgeslrient-of its handle |00> between 11188 |00.
` in a clockwise direction as viewed in Fig. 9, and
To release the nut from the screw, the handle
|88 is disengaged from the lugs |89, and the disc
|85 is then rotated thereby, whereupon the halves
|8| are caused to separate-by the action of the
disc grooves'l86 on their pins |81. The saddle is
then freely movable along its rails, suchmmoye
mentr being rendered more convenient by a gear
and rack connection between the bed |20 and the
saddle |26, the gear |‘9| being mounted on a
shaft |92 journalled in a bracket |93 which is
secured 'to the saddle, and the rack |94 being
secured to the side of the bed |20. A hand
Wheel |95 is ñxed to the shaft |92 for operating
the same.
In the general operation of the machine, it will
be seen' that after properly positioning the saddle
|26 on the rails |25, the ends of the tubes T are`
inserted in the plate socketsy |35 and projected, as
shown in Fig. `1, through the aligned clearance
notches 52 of the carriages 22, with their re
maining extremities supplied with the previously
described mandrels 23 and 24. The rods‘R,` bear
ing their supply of fins, are telescopically engaged
through the mandrels 24 and the accompanying
25 tubes. Upongstartingthe machine, the ñns are
individuallyfed along the rods into the path of
tube spacing from that shown
substituting a
new set of platens 5| and a new platen |30 on .
their carriages 22 and 'saddle |26, respectively.
As will be readilyunderstood'by, those skilled in .
the art, these and other changes, whichmay be
occasioned by the physical characteristics of the
fins and tubes, may be resorted to without depart
ing from theinventive concept as set forth in thefollowing claims.
We claim:
1. An assembling machine for applying fin
on tubes'comprising a rail structure', an endless
conveyor at one'end o1' said structure and hav
ing a lineally disposed section, spaced pairs oi
bearings ori the conveyor, aV shaft journalled in
each pair of bearings, a carriage secured to each
shaft and having a platen portion for receiving
a fin, a crank secured'to each shaft, ñxed guide
tracks adjacent the conveyor for guiding the
carriages on said section with their platens dis 20
posed in a perpendicular position relative to said
section, said guide tracks terminating adjacent
to the rail structure, ñxed cam means at the end
of said-tracks engageable by the crank in transit
and causing it and the accompanying carriage
to rotate in a' direction away from the rail struc
ture, a saddle slidably mounted on the rail struc
veyed toward and successively transilxed by thev ture and formed with means for engaging one
mandrels which pass through each flange open
end of a tube with remaining portions of the
30 ing O. Still retained by the carriages, the fins
'tube disposed over~the conveyor section and in 30'
are forced to slide along the tubes to the limit of the 'path of the ñns on the carriages thereon,
the horizontal movement of the carriages, at said carriages forcing the iins on the tubes dur- '
the carriages, by which means they are con
which location (Fig. 4) the carriages tilt back
ing their lineal movement, and av mechanism
operated by said drive means for intermittently
moving said‘saddle away from said section as
under the influence of the control cams |00.
each carriage is rotated by the fixed cams.
Immediately following the tilting movement 0f
2. An assembling machine >for applying fins
" each carriage, the saddle |26 is caused to'move , on tubes comprising a rail structure, an endless
` rearward> a. slight distance through ‘the action of conveyor at one end of said structure and hav
ward, thus releasing themselves from the ilns,
35 and then slide under vthe tube and fin assembly
one crank disc and the associated ratchet mech
ing a lineally disposed section, spaced carriages
anism on the screw |31.~ The tubes T, at all on the conveyor, ‘drive means for operating the
times being thrust against the thrust plate |30 , conveyor in a direction wherein the carriages on
of the saddle, likewise move rearward and carry said section approach the rail structure, means
with them the ñns >previously positioned; T_he
o rate of this intermittent movement is somewhat
'on each carriage forpositioning a iin transverse
ly of the conveyor, a saddle slidably mounted on
less than the speed of the advancing carriages the rail 'structure and formed with means for
so that there is no possibility of disturbing the v receiving one end of a tube with remaining por
fins still Apositioned in the carriages.
tions ofthe tube disposed over the conveyorsec
Thus, when the succeeding' fin, conveyed by its tion and in the path of the ñns on said> carriages,
respective carriage, reaches its limit of horizon
a mandrel secured 'to the free end of the tube
tal movement, the previously conveyed ñn is and formed with an axial opening, a guide rod
spaced from it a distance equal to the movement having one extremity telescopically received in
of ' the saddle |26. This action is continued with
the mandrel opening and accompanying tube
the crank discs |66 and |61, alternately causing and -its remaining/extremity projecting beyond
the step by step retreatof the saddle, until the the conveyor, 'a t'able having means for .position
mandrel extremities of the tubes approach the ing th’e last vvnamed end of said rod, `said table.'`
vicinity of the pedestals 25, whereupon thel ma
being' adapted to receive a supply of fins,v said ,
chine is stopped and the completed ñnrand tube ilns being strung on said rod and being adapted
assembly lifted'from the jmachine, the- saddle of to be ,fed thereon into the proximity of said car-.
.which is‘then repositioned to receive a new set
riages for movement therewith, said carriages
of tubes.
during their lineal movement forcing the nhs'
.With the saddle control mechanism set as over the mandrel and on the- tube, and a mech
shown, the strokes of the connecting rods |14 and anism for moving the saddle intermittently on
|15 are equaL'thus each retreating movement of its r'ail structure away from the conveyor sec
the saddle is of equal distance, and the fins are tion, said mechanism kbeing operated by the con
correspondingly equally spaced « `(Fig. 17) .`
veyor drive means as each carriage completes its
‘Should it'be desired to provide a coil with stag
lineal movement with said conveyor section.
-'geredilns as shown in Fig. 18,'the,rods |14 and, `3; An assembling machine for applying dns on i
- |15 are given> different strokes through the ad»
tubes comprising a .rail structure, an endless
70 justment of the slides |1| in the crank discs _|66 conveyor at one end of said structure and hav
and |61, in which case the saddle is alternately ing a lineally disposed section, spaced carriages
moved «different distances corresponding to the on the conveyor, drive means for operating the
- movement of the screw |31.
conveyor in a direction wherein the carriages on
The 'machine may readily be conditioned to as
said section approach the rail structure, means
I f
, semble -?ns and tubes of different proportions'or
on each carriage for positioning a ilnMtransverse- n
ly of the conveyor, a 'saddle slidablyv mounted' tubes, a plurality of rods disposed lengthwise of
on the rail structure, a `thrust plate secured
thereto and formed with sockets for`>receiving
the common extremities of a plurality of tubes,
the remaining portions of the tubes being dis
posed over the conveyor section and inthe path
of the fins on saidA carriages, a mandrel inserted
in the remaining extremities of each tube, cer
tain of said mandrels having axial openings
therein, a rod telescopically received in each of
said last named mandrels and having one ~end
projecting into the tube thereof and its remain
ing end projecting beyond the conveyor section,
. stationary mounting means for said last named
15 ~ends of the rods, said rods having a supply of
said iin moving means, means adapted to receive
and secure` said rods at the ends 'thereof remote`
from said tube holding means, said rods being '
of such diameter and length as to pass through
the apertures formed in said lfins and’ into the
open ends of tubes mounted on said tube holding ,
means, whereby during assembly the ñns are
supported on said rods and independently of said
iin moving means.
6. An assembling machine for applying ñns
transversely» on tubes comprising movable.v tube
supporting means, an endless conveyor having a
lineally disposed section -disposed‘ beneath the
tubes, carriages pivctally connected to the con
ñns strung thereon, said ñns being adapted to veyor at spaced intervals, each carriage having ~
be fed along said rods into the proximity of said a Yplaten for receiving a iin, fixed guide tracks
carriages for movement therewith, said car
slidably engageable by the platens on said sec
riages during their lineal movement forcing the tion for retaining the platens in perpendicular
20 fins over said mandrels and on said tubes, and position relative to said section, said platens 20`
a'mechanism for moving the saddle intermit-v having lportions `extending between said tubes,
tently on its rail structure away from the con
said guide tracks terminatingy adjacent to one
veyor section, said mechanism being operated end of the section where the carriages are re
by the conveyor drive means as eachcarriage
completes its lineal movement with said conveyl»`
4. An assembling machine for applying tins on
tubes comprising a rail structure, an endless
conveyor at one end of said structure and hav
ing a lineally disposed section, spaced carriages
on the conveyor, drive means for operating the
conveyor in a direction wherein the carriages on
said section approach the rail structure, means
on each carriage for positioning a ñn transverse
ly oi.' the conveyor, a s_addle slidably mounted on ’
leased for free pivotal movement on thecon
veyor, fixed abutment means engageable by each 25
carriage as it leaves said tracks for causing the
rotation of the carriage on said conveyor where
by the platen portionfthereof is swung out of
registry with the tubes and fins, cam means as
sociated -with said abutment means, roller means 30
on >each carriage engageable in said cam means
to guide each carriage during swinging move
ment, and drive means for moving the tube sup
porting means and conveyor in timed relation.
7. In a 'machine for assembling ñns on tubes, 35
the rail structure and formed with means yfor `means for moving fins longitudinally of the
receiving one end of a tube witl'nremaining por
tubes, drive means therefor, tube holding means
' tions oi.' the tube disposed over the conveyor sec
disposed adjacent to said first means and com
tion and in the path of the .fins on said carriages,
40 said carriages forcing the ñns on the tube dur
ing their lineal movement, and a mechanism for
moving the saddle intermittently on its rail
prising a railgstructure, a saddle slidably mount
ed on the rail structure and formed 'with means 40
for holding'one end of a tube, a mechanismy for A ,
moving the' saddle onfthe rail-structure away
structure away from the conveyor section, com-v from ,said ñrst means comprising a screw l:ro- t.
prising a screw rotatably mounted in the- rail tatably mounted in the rail structure, a. nut
structure, a nut mounted on the saddle and en
gaging said screw, a drive mechanism for the
mounted on the saddle and engaging said screw,
a drive mechanism for the screwv including a
screw .including aratchet mechanism, a plural
ratchet mechanism, a plurality of adjustable
ity of adjustable crank means each `>having an , crank means each having an operative connec
operative connection with said ratchet mecha
tio`n with said ratchet mechanism, a `common
drive mechanism for the crank means, and
nism, a common drive mechanism for the crank
means operated by said conveyor drive means,
means for` operating said drive mechanism in
`said crankmeans being set to operate the ratchet
timed relation to said drive means, said crank v
mechanism alternately as each carriage `coin >means being set to operate -the ratchet mecha
pletes its lineal movement with said conveyor , nism alternately. `
5. In a machine for assembling apertured flns
on tubes including means for holding> the tuberi,4
and means for moving iins longitudinally 'of th
_ LAWRENQE v.'wms'rLEn.
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