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Патент USA US2404271

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Filed July 12, 1945
4 Sheets-Sheet l
V _|.
July 16, 1946.
Filed July. 12, 1945‘
4 Sheets-Sheet 2'
July. 16, 1946.
~v2,404,271 '
Filed July 12, 1943
4 Sheets-Sheet 3
July 16, 1946.
2,404,271 7
Filed July _12, 1-943
4 Sheets-Sheet -4
Patented July 16, 1946
2,404,271 '
“ Pennsylvania
.7 1
This invention re1at’e's-ItobeI'tsi1sed jfor._.trans~ . .form oVf-v-belt embodyinghthe present invention;
I mitting power .andmore... aitic'ularly, toQV?-type
Fig, 11 is an elevation‘ of a.por_tion_,ot,..the
. vv\hbelt shown,in.F'ig._,10,
object of the invention. is. to- provide an
.3‘ improved yrbeltiof‘lt'he‘ typeihaving aplurality 5,017) the arrow- I I, Fig. 10.
not outwardly extending V-shaped 'ribs. .ioi'med‘
According . to. the .-.present. .inventlionthevim
T lengthwise thereof and .fcoextensive fthe“ _. length
proved V_,—.type belt. ll isformed of, suitable molded
.spect'. to .the/fmai'nf bodyof ‘the'fbélt‘and, being
material] and mayQh?ve, three . lLv-shapedlrib'si l 2,
I3 and H, as shown in Fig. 1.,“two'V-shapedribs
the'ifeojféfthe. r'ib's‘beine. arj lng‘ed radiallyxwith re
|5,._and ‘I6, asshown in “Figs; A; and 7|, ‘orgfour
‘ ~to;‘eaic'h"other.
. qshaped ribs I1... I8, I 9, an,d._2_l_l,_\__as,shown in Fig.
‘ J'l‘Another objector ttheinventio-n isto provide
an" improved ",VTbelt" of ‘the ‘above type, in which
i‘ill of the above, referredto» evqshfapedhribs. are
' 'theI longitudinally extending ribs are arranged at ’ .iorrned lengthwise of. the. oe‘ltland extendladially
jee'englé e wagging;with‘resea
15 .from the mambody portion, l I...
Theseiribs are
arranged at right. angles‘ or...90°. withrespectr-to
_\Another object ofithe invention is’ to‘provide an l _. each, other,‘ an‘dthej ribs. 12,. l,3._.and_ |4_'o_f .th'egbelt
improved v-belt‘oufvhtheiabove type. in which'the ‘ shownin' .Fig- .1. should ypneferablynallcorrespond
. . - in;
ss'vsectiovnal dimensions. .,__'s;_mi1ar1y. theh'ribs
not I 5 of, the belt shownI inFig. gigshould both
_‘ ‘rrprfeferably correspond, in cross sectional?ldirnen
wsionshandplikewisetheribs “wand; l5 ofyth‘ belt
also 311.
.Angotheniobtieci- 0f ethel.
‘shown. in Fig. .7. shouldxboth. correspond
sectional dimensions. ThefOur/Qribsi,l1,1_l8,"‘|9
and. 2.8 oyflthe [form of.y,belt.sho,vvn in.._1*f'ig..‘l.0.a1so
, _‘ isretained.iromtwis?nein a predeter.
, should, ‘all correspond, in cross, ,sectional' ‘di
. ,nosition witlitnesnect l'eQihQcQQEQ?H?éFQS.01112119
1.,Inorder to limittoa minimunithe amount of
stretching; 0f‘. the, material. used. in'... constructing
With- .thafpreaoing and. other; .ebiectsem Jad
the belt vl l, aacable orv .lsimilar element ‘ 2 _| ,. can; be
. .preierred 2construction angL-a
. .severalparts which will. be..herelnaftemfullmde
the‘ molded, inaterial,rasshownjn. Figs. 1, 4. ‘Z vand
scribed andclaimed.
In the. accompanying drawings: .
. Fig. 1 1s a transverse sectionthrough one.foim
. of vebelt embodyingthe presentinvention;
.: .Fig. 2 is an_ elevation of .a.»p0rtion;of-the..v.=belt
.shown inFig. 1,.1ooking in.the, directioncf .the
. arrow 2,.Fig. 1.
Fig. .3 is an elevation of a portion ofi-the V-belt"'74
cshowninFig. 1,..1ooking inthe direction: of»..the
.arrow 3,. Fig. 1;
-: Fig. 4 is altransversesection throughaanother
.10, respectively.
"1 With a V.-type,b.e_1t, of.,_the, formshownin, Fig. 1
in” whichL3“‘the,
beltl a’,isit‘formed
I ‘ribs-J2’;
is pqs'isibleltvo
over, the ‘cone lsuriacesorgrooves ‘of?sheaves, so
'that'hthe belt, in. travellingearound‘.thewsheaves, ‘
V will remain atriall ,ltime‘sfin the same. position
without'anytendency fqrthe belt to twist or. turn
out of such‘position.
_ .Thus, asshown inFig. L-thgqribw LZJof the-‘belt
wma‘ywrid'e, in 1 the yésliapegg groove { of a pulley. or
.having a “horizontal . axis;
. . form: of V-belt. embodying/the. present. invention; . 45'“ sheave .22
.5 isan elevation'of .a-portion of~theV'-belt
.' Fig. 4 looking in the direction-ofr-the
arrow 5, Fig. 4;
the-yin.lamayridemthe -.
pulley. oryksheave ,
haying ~
xenon. and. the , rib; lllginayiode."~
t’ ..
groove of ,agpulleyrorygsheave,24...having a.z
“Fig. 6 is anelevation-of a portion of the V-belt
shown in Fig. 4, looking in the direction of the 50 zontal axis" of rotation.
As shown in Fig. 1, the arrangement of the
arrow B, Fig. 4;
pulley or sheave 24 with respect to the belt is such
Figs. '7, 3 and 9 are views similar to Figs. 4, 5
that the belt is supported by sheave 24 in a hori
and 6, of another type of V-belt embodying the
?ight. At the end of such horizontal ?ight
present invention;
either a pulley or sheave 23 or a pulley or sheave
Fig. 10 is a transverse section through another 55 22 can be utilized to guide the belt in a flight 01' a
axis of rotation enables the belt to. be guided
in adirection towards the right in addition to
the several directions of travel which may be
imparted to the belt with the form shown in
direction di?erent from the ?ight of the belt past
the pulley or sheave 24. . Thus, if it is desired
' that the ?ight of the belt should be in a direction.
towards the left, then the belt is trained through
‘the V-shaped groove of pulley or sheave 23. On
“the other hand, if it is desired that the ?ight of
the belt should beupwardly fromthe horizontal
?ightjover" puileyor sheave" 24, then the belt is
in Fig. 1.
While I have described the invention in great
detail and with respect to the present preferred
" 1 formthereof, it isnot desired to be. limited there
to since changes and modi?cations may be made
trained through the V-shaped groove of pulley or
sheave 23. By constructing the belt with the se .10; therein without departing from the, spirit and
ries of ribs [2, l3 and I4 and by arrangingthe ' ' ‘scope of the invention. The invention may be
embodied in other speci?c forms without de- 7
pulleys or sheaves 22, 23 and’24, respectively, in‘
the manner heretofore referred to, the belt will . .
parting from the essential characteristics there
beguided by the sheave'sin a’number of'direc- ' ’ of.’ The present embodiments are therefore. to
tions without any tendency for, twists being
formed in the belt. In other words, assuming that v
the belt of Fig. 1 is endless and passes over a se
ries' of sheaves arranged with horizontal andiver
be consideredlin all respects as illustrative and
not restrictive, the scope of the invention being
indicated by the appended claims rather than
by the foregoing description, and all changes
tical axes of rotation, the belt will make a com?" d which come within the meaning and range of
pletecircuit around all of the sheaves with the 20 equivalency of the claims are therefore intended
to be embraced therein.
' two ribs l2 and M always vertically disposed, in
Having thus described my invention what I
,_ the manner shown in Fig. 1, and with the 'rib‘ l3
always horizontally disposed.
claim is:
1 may have
1. A V belt of the type described comprising a
opposite to the rib I3. This portion 26’ provides
formed lengthwise thereof and coextensive the
Tne‘form of V-belt shown in
a portion 25 formed on the main body thereof 25 plurality of radially extending V'-shaped ribs
. means by which a ?ight or some such element
length thereof, all of said ribs being substantially I
similar in form and size and being arranged at
an angle of approximately 90° with respect to
belt when, desired.
other, each of said ribs having three walls,
The only difference in the two belts shownin
including tWo inclined side Walls and an outer
' Figs. 4 and 7, respectively, is in the con?guration
end wall, the adjacent side walls of adjacent
of the main body of each belt.
ribs forming a reentrant angle, the two side
, _. In the form shown in Fig. 5* the two ribs [5,
of each rib being inclined at substantially
j 16 project outwardly from the. main body of the
belt and the main body has two surfaces 3| and‘ 35 similar angles with respect to the radial center
line of the rib and the outer end wall of each rib.
‘ 32 arranged at right angles to each other on the
(not'shown) can be secured to the body of _the
-' opposite sides of the body from. the ribs, respec-_
tively. Thus, surface 31 is arranged perpendic
.ular to'the longitudinal center line through rib
l5 and ‘surface 32 is perpendicular to the longi
> tudinal center line through rib Hi.
This con
struction provides a heavy main body portion for
"the belt, useful when the belt is arranged to trans
_ mit considerable power.
‘ I on the other hand, in'the form of V-belt shown’
in Fig. 7, the cross sectional area of 'the‘belt is
',,somewhat_ less than the cross sectional area of
tlie'formof belt shown in Fig.4. This is accom
plished by forming the body with an angular sur-V
- "face 33,]which surface is arranged at an angle
I i of 'substantially45° (with respect tothe longitudi
‘n'al' center lines of the ribs [5, I6, respectively.
,. In both forms of belts shown in Figs. 4 and '7,
theribs 15 are adapted to engage the cone sur
faces of pulleys or, sheaves 34, having vertical axes'
of rotation,'and the ribs it are adapted to engage
being arranged substantially at right angles
the radial center line of theirib.
2. A V belt of the type described comprising;
a body having three radially extending V-shaped
ribs formed lengthwise thereof and coextensive.
the length thereof, all of said ribs being sub-.
stantiallyv similar in form and size and being;
arranged with the longitudinal center lines of;
45 each at an angle of approximately 90 ‘degrees,
with respect to each other, each of said ribs hav
ing three walls, including two inclined side walls;
and an outer end wall, the adjacent side walls'
of adjacent ribs forming a reentrant angle, the:
two side walls of each rib being inclined at sub-_
stantially similar angles with respect to the radial
center line of the rib and the outer end wall of
each rib being arranged substantially at right
angles to the radial center line of the rib.
. 3. A- belt comprising a plurality of radially
extending V-shaped ribsl formed lengthwise
thereof and co-extensive the length thereof, an
adjacent pair of ribs being arranged with their
horizontal axes of rotation. With’ the belt trained
radial center lines disposed at an angle less than
" or ‘guided by ‘the, pulleys or sheaves 34, 35, no
‘ twisting will take place and the two ribs l5, [6, V60 180° with respect to each other, said ribs each
.including side walls inclined at substantially
will always remain in the position shown.
similar angles with respect to the center line of
The form of V-belt shown in Fig. 10 is particu
the rib, adjacent side wallsof adjacent ribs ‘be
larly adapted to be used with sheaves or pulleys '
’ the cone surfaces'of pulleys or sheaves 35, having
' arranged so that the ?ight of the belt can ex7
tend through a'series of horizontal and verticalv
"paths without twisting or‘turning out of a pre
‘ determined‘ position. The fourth vésha'ped rib
2ll'and vthe sheave‘ ‘4U vwith vertically‘ disposed
ing angularly disposed with respect to each other,
to-form a reentrant angle greater than the angle
between the radial center lines ofsaid adjacent
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