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Патент USA US2403635

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July 9, 1946.
_
B. s; CARR ETAL'
~2,403,635
. CHAIN
Filed March 4, 1943
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2 Sheets-Sheet 1
I
INVENTORS.
5/6264
.5 (‘a/‘r,
BYd/"Z/Zzz/L [aka/72076,
July 9, 1946. '
B. s-CARR ETAL ~
' f 2,403,635
‘CHAIN
_'File§. March 4, 1943‘ '
2 Sheets-Sheet 2
Brad!
INVENTORS. , .
35a
2,403,635
' Patented July 9, 1946
' L ‘ 1 UNITED ‘STATES
2,403,635;
_
701mm,
Bradley S. Carr, v(Lhicago,assisncrs
to. 'L.
American
more, zzGlenwood, 111., and
Brake Shoe ‘Qumran?’ 21 sewerage?! sf P124“
Wale
Application March 4, 195-3, Serial No. 417,946
15' Claims.
(er-nears)
>
,
.2
--the side andsframe links for transmittal DI the
‘The present invention relates to chains, and
weight .of thepha'in' assembly .to the ;sa.id;roll_ers.
‘more particularly to novel chain mechanisms for
‘In ene emhediment not the invention, pperative
‘use in “conveyors for dredges, pig casting :ma
association :Of ‘the ‘roller mountings in ‘assembly
chines, and :the like. ~
,5 is e?ectedthrougha clutch relation between the
Among :the objects of the present invention-is
separate bushings and the link structure for
to provide a novel chain mechanism character
.maintazlning ‘proper operating relation of the ele
ized by its simplicity in designyits ability to with
ments :of ithe ‘chain and .to provide an assembly
stand hard usage {for various ‘types of heavy work,
in which :the bearings may be readily ‘removed
andiby its ease of assembly and disassembly.
or replacement.
‘The present invention-involvesran improvement 10 rorn‘epair
:Other objectsdeatures, capabilities andadvan
in ‘chains of the type disclosed in Patent :No.
.tages .are comprehended ';by the invention, as {will
1,967,496,1Whi0h includes as elements in the com
later ,appear ‘and as rare inherently possessed
bination, rollers for supporting and guiding the
chain during its operation Land vfor transmittal >
Referring to :the drawings?
,
‘
‘thereby.
of'lforces to other-parts of the machine or device 15
' in which the "chainiforms v=a component part.
‘The present invention -is,'¢therefore, grounded ‘
,
e
,
:‘Figure 21 is is, :fragmentary topplan :view .of ;a
echainimade in accordance kwith the ,present‘inven
'upon a desire to provide an'improved chain as
‘Figure-‘25s a‘yiew in .sideelevation of the Lchain
senibly of the type shown in the patent before
mechanism
shownin?gure .l of the drawings;
mentioned, and which is ‘capable of withstanding 20 ~Figurer3 is .a tragmentary view in cross-section
the stresses and strains to which such a ‘chain
taken
the plane represented :by Aline 53?3 of
mechanism would be subjected in heavy work,
- Figure 241i ‘the-drawings;
'such, for example, as would be experienced ‘in
eFigureA is a *fragmentaryyiew partly in eleva
‘tion;
,
-
a
.
dredging ‘mechanisms.
125 $1011 andpartlyzinzseetion, and taken in the plane
A'Yfurther object of the present invention is to ‘represented :by line-r474 of_:Figur_e 3;
provide a chain of the type herein identified, in .
Figure 5 .is .-.a iview'in section gtaken'in the plane
‘which the transmittal -of ‘force between the links
is direct, with the rollers serving =merely vas a
'lrepresented'éby‘line 5l-=-;5-.of‘Figur.e:3;
'
,
Figure 6 is a view in section taken :in-the plane
medium-for ‘taking the weight of the ‘ entire‘ chain
representedibyrline lie-,5 :of Figure 13 of the draw
(and transmitting the same to the supports :or 30
Kings;
guides~=for i-said chai' .
Figure i5? .is .a .view-in s‘deelevation of one of
More particularly, the present invention com
prehends a chain assembly in which the direct
‘the .side links :for ztheiassemb1y shown in Figures
inclusive; and
_-‘gure :8 isarview in .sideielevationof the retain
!ing element sfor the .side slink-shown in Figure P7
transmittal of forces between the links :thereof
is effected by interlocking means fpermitting
proper bearing *relation between the ‘links, ‘yet
of :the :drawings.
being of such a construction as to-perniit ithe
ready --assembly and disasseni-bly -oi ' the links ~~tor
‘the ‘purpose of replacement -or repair. As iillus
trativeof the-presentinventionitheesaid 'side links
"may be of multi-parteonstruction in which-the
‘parts have bearing -=re1ation¢with the =i-rame rlin-ks,
but‘ which are readily ~detac'ha‘bly1connected'ito
'
:Referring now :more in ,detail ‘to the drawings,
an embodiment selected-to ,;i'llustrate (the present
40
ginvention-iis shown ras-compri-singaserie's :of frame
:linlrs r2 interconnected ‘by the side links ,4, and
iforming a ,chain particularly adapted :for heavy
‘duty, .such :for example :as eWOllld aloe required in
“dredges and the :like. ‘The vframe Ilinks:2Bare-con“
gether to iacilitatethe interconnection of these 45 e stitutedihy :the spaced transversely arrangedhol
‘links ,-or disassembly’ of the same atl'will.
‘Another objectwithinthe ‘purview 1 ofrthe pres
ent ‘invention *is to provide ‘a ‘chain ‘assembly-of
the type herein ‘disclosed, in v'whicnthe' rollers
are vmounted ‘for operation independent ‘of *the
side “links which ‘serve ‘as vconnecting eelements
between the frame links.
’
‘More particularly, the ‘invention contemplates
a structure in whichtherollersiare mounted upon
:l-ow zframe {elements :6 ;;and B, formed-‘integrally
lwith:thedongitudinally disposed side elements l0
and l>2 to rformialirigid girame structureaforming
.athe .ialternate links :of :the chain assembly.
50 ' iThei-‘ho‘llowwframe elements 6 ‘and Bare .of sub
stantially} the same formation and involve the
send-journal ,fbearings ‘.14 and 16,:each of which
extends ‘rlaterally Inf sthe :side :sframe :elements all)
and ::|:~2,.~and each "having: itsend formed, in ‘:part
“separate bushings “which, ‘in f-turn, are mounted N55‘ :zby - the s-radial thalf :flange 13, and the :adjacent
=upon'ib'ea-riing Jpn-1s ‘having operative relation with
2,403,636
3
4
axial recess 20 providing a shoulder 22 with the
when the retaining element thereof is disposed in
?ange [8. The said frame elements E5 and 8 are
bearing relation to said journal bearings.
each provided with a centrally disposed bore 24
It will be further noted that the entire force
having its terminals at the ends of the journal
transmitted
the links of the chain is
bearings l4 and I6 and which is formed to provide Ur directly frombetween
one link to the other, and is inde
the ?nished bearing surfaces, such as 26, and
pendent of the rollers comprising a part of the
the like‘, and being‘adapted to receive a retaining
pin 28' extending laterally beyond'ithe'jo'urnal
bearings.
The side links 4 are of similar formation, best _'
shown in Figures 3, 4 and 6 and are of multi-part
_ .
completediassembly. The [pins 28 of‘ the struc
ture above described merely serve in theassembly
to take the weight of the entire chain for trans
mittal to supporting and guiding elements, and
accordingly the rollers mounted upon the bush
construction including the element 30 and them“ ings 10 are not affected during their operation
}
retaining element 32.
The link ‘element 30 is of .
integral construction having“ the ~ opposed end
by theworking loads being transmitted between
‘the links of the chain,
portions 34 and 36 interconnected: by the side p'or;v
tions 38 and 40, and which element 30 is provided
with the Openings 42 and 44 adjacent, lihe ends
thereof. The said openings are de?nedin part
by the opposed curvedlbearing surfaces 46' and
tics of the present‘ chain assembly, it should be
‘_ further ,notedthat the rollers are not mounted
48 and in part by the center ?ller 59 connecting the side portions 38 and 40 together. These open
ings 42 and 44 are suf?ciently large to enable the
.during operation. This is of particular impor
assembly of the side links with the frame links
in the manner particularly disclosed in Figure 3,
whereby the bearing surfaces 46 and 48 are in
bearing relation to the journal bearings of adja
~cent frame links. The said end portions 34 and
In addition to the above desirable characteris
directly upon the pins 28, but on the other hand
are mounted upon bushings 10 Which are readily
repaired or replaced after the same become worn
tance vin a chain, of the character herein de
scribed, by virtueof ‘its large size, which is nec
essary in dredges and the like, and wherein the
pins, such as 28, are of large, massive construc
tion, which are costly and oftentimes hard to
replace. In the present assembly there is no wear
36 of the link element 30 are disposed axially and
on the pins 28 from the rotation of the rollers
inwardly with respect to the radial ?anges I8 of
12, and the present assembly contemplates renew
the frame links, whereby the side links when 30 able bushings, such .as ,10, which are, notpressed
in operative relation with respect to the said
, into any of the link mechanism nor forcibly at
frame links are held against lateral movement
tached to the pin, whereby the same are readily
‘with respect thereto by the radial ?anges l8_,
replaced as desired.
The side links are held in operative relation to
While the drawings illustrate the frame links
the frame links throughthe medium of the re- . as being constituted only by the frame elements
taining element 32 which is formed with the
described, and which construction would appear
curved bearing surfaces 52 and 54 at its ends,
in certain types of power chains, nevertheless the
adapted to engage the journal bearings such as
present invention is of such a scope as to contem
It. of adjacent frame links, This retaining ele
plate various types ofscraper blades or supports
ment is formed with the centrally disposed aper
which could» be formedas parts of these frame
' ture 56 ?tting over the lug 58 of the link element
links and as would be used in chain mechanism
30, the said assembly being retained in operative
adapted for dredges and the like, Accordingly,
condition through the medium of the pin 60 pass
the particular form of frame links herein dis
~ ing ‘downwardly through the opposed openings 62
closed has been chosen merely ‘for the purpose
.and'64 formed in the side portions 38 and 40 and
of simplifying the present illustration of the in
the aligned‘opening 66 provided in the lug 58,
the said pin being'turned or bent as at 68 to pre
vent displacement thereofduring the operation
' of thechain mechanism.
.
vention.
,
,
While I have herein described and upon the
drawings shown an illustrative embodiment of the
. invention, it is to be understood that the inven
- "As previously indicated, the pin 28 extends lat-~ 50 tion is not limited thereto but may comprehend
erally beyond the journal bearings l4 and I6 and
‘serves asa' mounting for the bushings 10 on
which the rollers 12 are mounted. These bush
other constructions, arrangements of parts, de
,. tails and features without departing from the
spirit of the invention.
We claim:
head ‘14"adapted to retain the rollers 12 in posi 55 1. A chain comprising adjacently disposed
tion between the radial ?anges l8 and the same,
frame links formed with spaced transversely dis
the said enlarged head being further provided
posed frame elements interconnected by spaced
with the transverse opening 16 having its termi
side frame elements, said transversely disposed
nal ends axially disposed as at 18, and which is
frame elements extendingv laterally of said side
vadapted to‘ receive a locking pin 80 passing 60 frame elements and providing journal bearings,
through‘th'e aligned opening 82 in the pin 28.
and side links having journal relation with said
The locking pin 80 is bent axially into the axially
bearings under all operating conditions of said
, disposed openings 18 for retaining the bushings
.chain for interconnecting said frame links to
‘ in operative relation to the pin 28.
gether, means on said journal bearings for hold
ings 10 are formed at one end With an enlarged
Each of the bushings 10 is provided with a half '- '
- round projection 84 complementary to the recess
ing said sidelinks against" lateral displacement
with respect to said frame links and to hold said
links against relative linear movement with re
spect to one another, said side links being of
multi-part construction having means for assem
20 of the ‘journal bearings and cooperating there
with to effect clutching relation in the form of
a half jaw'clutch retaining the bushing-in its
proper operative relation with respect to the said 70: bling and disassembling the same with respect to
bearing.
>
said frame links.
As will be noted, the radial ?anges [8 ‘of the
adjacent frame journal bearings extend in ‘op
V
_
2, A chain comprising adjacently disposed
framelinks formed with spaced transversely dis
posed relation to one another so ‘as to effectively
posed frame elements interconnected’ by spaced
. prevent lateral displacement of the. side links 76
side frame elements, said transversely disposed
27313935815
.
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5
frame elements ' extending laterally of said ‘iside
side‘links' having- journal ‘relation ‘withrsaid :"bear
frame ‘elements and providing ‘journal bearings,
side links having ijournal relation with said {bean
ings for interconnecting said frame links ‘site
ings for -'interconnecting said ‘frame vvlinks ‘to
gether, means on said 'journal‘bearings for-hold‘
ing said side links against lateral displacement
with'respectsto said framefli-nks, saidsi-de links I
gethei", means on? said journal bearings ‘for mild
in-g said side ‘links; against lateral ‘displacement
vbeing of-"multi-part construction each including
with ‘respect “ to said frame links; said {side-links
being 1of 'multiepart ‘construction including a re
a‘link' element formed with openings adjacent
its "ends adapted to receivesaid journal bearings
taining element having journal relation with said
10
bearings to hold said-‘links against relative linear
movement with respect ‘to one another, and
and an'intermediate ?ller memberysaidg-openings
‘being formed in» part ww-ith- opposed surfaces
adapted to have bearing: relationfwilth-said jour
means for readily detachably connecting-the parts
-.of~said s'ide‘links together.
7'
‘
a
6
name elements and providing journal-bearings,
a
nal bearings, a retaining Ielementdn'terposed ‘Poe'
' tween and having bearing relation withsaid ljlou-t
I
‘ '3. A chain‘ comprising. ‘adjacently disposed
nal hearings to ‘hold said ‘links against relative
frame links formed with spaced t'ransversélydis 15 linear movement with respect to one another,
posed frame elements interconnected 'by'spaced
landrmeans' for connecting said last named :ele
side frame elements, said transversely disposed
frame el'ements‘extending laterally of said side
ment'to'said
17. A ‘chain
J?ller
comprising
member. adjacently
H
disposed
‘
frameelements and providing journal bearings,
frame links formed with spaced transverselydis
side links having journal relation with said bear 20 posed frame elements interconnected by spaced
ings for interconnecting said frame links to
side frame elements, said transversely disposed
gether, means on said journal bearings vfor hold
frame elements extending laterally of said side
ing said side links against lateral displacement -
frame elements and providing journal bearings,
link-s, said side ‘links
being of multi-part construction eachincluding
a link element adapted to embrace said journal
bearings and ‘having opposed surfaces having
side ‘links having journal relation ‘with said bear
, witliyrespect to said frame
ings for interconnecting‘ said frame links "to
gether, said journal bearings having radial
flanges for holding said side links against lateral
bearing relation therewith, a retaining element
interposed between and having bearing'relation
with said journal hearings to hold said-links
against relative linear movement with respect to
30
one another, and means for interconnecting said
elements'together.
'
'
'4.~A‘ vchain comprising adjacently disposed
frame links formed with» spaced transversely dis
displacement with respect to 'saidJf-ram-e links,
said side links ‘being ‘of multi-partconstruction
each vincluding a link element formed ‘with open
ings adjacent its ends adapted to receive ‘said
journal bearings and an 'intermediate'?-Iler meme
ber, said openings being formed in part with
35 opposed surfaces adapted to have bearing rela- 7
posed frame elements interconnected by spaced
side frame elements, said transversely disposed
frame elements extending laterally of said side
tion with said journal bearings, a retaining ele
ment interposed , between and having bearing
relation withv said journal bearings tov-holdsaid
links against relative linear movement with re
frame elements and providing journal bearings,
.spect to one another, and means for connecting
side links having journal relation with saidbear 40 ‘said last named element to said ?ller member.
ings for interconnecting said frame links to- 8. A chain comprising adjacently disposed
gether, said journal bearings having radial
frame links formed with spaced transversely dis
?anges ‘for holding said side links against lateral
posed frame‘ elements interconnected 'by spaced
displacement with respect to said frame links, 45 side frame elements, said transversely disposed
said side links being of multi-part ‘construction
‘frame elements extending laterally of said side
including a retaining element having journal re
frame elements and providing journal bearings,
lation with said bearings to hold said links
side linksihaving journal relation with said bear
ings for interconnecting said frame links to
one another, and means ‘for readily detachably
gether, said ‘journal bearings having radial
connecting the parts of said side links together. ‘ ‘ flanges ‘for holding said side links against lateral
agamst'érelative linear ‘movement with respect to
'5. A chain comprising adjacently disposed
frame links formed with spaced transversely dis
posed frame elements interconnected by spaced
side frame elements, said transversely disposed
displacement with respect to said frame links,
said side links ‘being of multi-part construction
frame elements extending ‘laterally of said side
journal bearings and an intermediate ?ller mem
‘frame elements and providing journal ‘bearings,
side links having journal relation with saidbear
ings for interconnecting said frame links to
gether, said journal bearings having radial
each including a‘link element formed with open
ings adjacent its ends adapted to'receive said
ber provided with an apertured lug, said openings
being formed in part with opposed surfaces
adapted to have bearing ‘relation with saidjour
nal bearings, a retaining element interposed .be
‘?anges for holding said side links against lateral 60 tween and having bearing relation with said
‘displacement with respect to said frame links,
‘journal bearings to hold said links against rela
‘said side links being of ‘multi-part vconstruction
tive linear movement with respect to one another,
each including a link element adapted to em
said retaining element being provided with ‘an
and
having.
‘opposed
' brace said journal bearings
aperture adapted to be received by "said aper
surfaces having bearing relation therewith, a 65‘ tured lug, and a retaining pin for said last
retaining element interposed between and having
named aperture for ‘interconnecting said ele
bearing relation with said journal bearings to
hold-said linksagainstrelative linear movement
ments together.
'
t
‘
'
9. A chain comprising adjacently disposed
frame
links formed with spaced transversely dis
70
connecting said elements together.
posed hollow frame elements interconnected by
6. A chain comprising adjacently disposed
spaced side frame elements, said transversely dis
frame links formed with spaced transversely dis
posed frame elements extending laterally of said
posed frame elements interconnected by spaced
side frame elements and providing journal bear
side frame elements, said transversely disposed
ings, side links mounted upon and having journal
75
frame elements extending laterally of said side
with respect to one another, and means for inter
2,403,635
relation with said bearings for interconnecting
said frame links together, means on said journal
‘bearings for holding said side links against lateral
displacement with respect to said frame links, a '
pin received in each of said frame elements ex
tending laterally beyond said journal bearings,
bushings mounted on said pin adjacent said
journal bearings, rollers mounted on said bush
ings,>and means for securing said assembly in
posed hollow frame’elements interconnected by
spaced side frame elements, said transversely dis
posed frame elements extending laterally of said
side frame elements and providing journal bear
ings,'side linksmounted upon and having journal
relation with said bearings for interconnecting
' said frame links together, means on said journal
bearings for holding said side links against lateral
displacement with respect to said frame links,
10 said side links being of multi-part construction
10. A chain comprising adjacently disposed
including a retaining element having journal re
frame links formed with spaced transversely dis
lation With said bearings, meansfor detachably
posed hollow frameelements interconnected by
connecting the parts of said side links together,
spaced side frame elements, said transversely dis
a pin received in each of said frame elements ex
posed frame elements extending laterally of said 15 tending
laterally beyond said journal bearings,
side frame elements and providing journal bear
bushings mounted on said pin adjacent said jour
ings, side links mounted upon and having journal
nal bearings, rollers mounted on said bushings,
relation with said bearings for interconnecting
and means for securing said assembly in opera
said frame links together, means on said journal
tive relation.
bearings for holding said side links against lateral 20
14. A chain comprising adjacently disposed
displacement with respect to said frame links, a
frame links formed with spaced transversely dis
Pin received in each of said frame elements ex
posed hollow frame elements interconnected by
tending laterally beyond said journal bearings,
spaced side frame elements, said transversely dis
bushings mounted on said pin adjacent said jour
posed frame elements extending laterally of said
nalbearings, said bushings and journal bearings
side frame elements and providing journal bear
having cooperating clutch means, rollers mounted
ings, side links mounted upon and having journal
.on said bushings, and means for securing said
relation with said bearings for interconnecting
assembly in operative relation.
said frame links together, means on said-journal
11. A chain comprising adjacently disposed
bearings for holding said side links against lateral
frame links formed With spaced transversely dis
displacement with respect to said frame links,
posed hollow frame elements interconnected by
said
side links being of multi-part construction
spaced side frame elements, said transversely dis
including a retaining element having journal
posed frame elements extending laterally of said
relation with said bearings, means for detachably
side frame elements and providing journal bear
ings, side links mounted upon and having journal 35 connecting the parts of said side links together,
a pin received in each of saidframe elements ex
relation with said bearings for interconnecting
tending laterally beyond said journal bearings,
said frame links together, said journal bearings
bushings mounted on said pin adjacent said jour
having radial ?anges for holding said side links
nal bearings, said bushings and journal bearings
against lateral displacement with respect to said
having cooperating clutch means, rollers mounted
frame links, a pin received in each of said frame
on said bushings, and means for securing said
elements extending laterally beyond said journal
assembly in operative relation.
bearings, bushings mounted on said pinadjacent
15. A chain comprising adjacently disposed
said journal bearings, said bushings and journal
frame links formed with spaced transversely dis
bearings having cooperating clutch means, rollers
mounted on said bushings, and means for secur 45 posed hollow frame elements interconnected by
spaced side frame elementssaid transversely dis
ing said assembly in operative relation.
posed frame elements extending laterally of said
12. A chain comprising adjacently disposed
side frame elements and providing journal bear
frame links formed with spaced transversely dis
ings, side links mounted upon and having journal
posed hollow frame elements interconnected by
relation
with said bearings for interconnecting
spaced side frame elements, said transversely dis 50
said frame‘ links together, each of said journal
posed frame elements extending laterally of said
bearings at its end being formed with a radial
side frame elements and providing journal bear
?ange for holding said side links against lateral
ings, side links mounted upon and having journal
displacement with respect to said frame links
relation with said bearings for interconnecting
said frame links together, each of said journal 55 and an adjacent recessed portion, said side links
being of multi-part construction including a, re
bearings at its end being formed with a radial
taining element having journal relation with said
?ange for holding said side links against lateral
bearings,
means for detachably connecting the
displacement with respect to said frame links and
parts of said side links together, a pin received
an adjacent recessed portion, a pin received in
in each of said frame elements extending later
each of said frame elements extending laterally 60 ally
beyond said journal ‘bearings, bushings
beyond said journal bearings, bushings mounted
mounted on said pin adjacent said journal bear
on said pin adjacent said journal bearings, said
ings, said bushings having projections received
bushings having projections received in said re
operative relation.
\
in said recessed portions, rollers mounted on said
cessed portions, rollers mounted on said bushings,
bushings, and means for securing said assembly
and means for securing said assembly in opera 65 in
operative relation.
~
tive relation.
13. A chain comprising adjacently disposed
frame links formed with spaced transversely dis
BRADLEY S. CARR.
ARTHUR L. BLAKEMORE.
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