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Патент USA US2406553

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Aug. 27; 1946._
Filed Feb. 12, 1945
'2 Sheets-Sheet 1
1%. 2.
Aug-21, 1946.
Filed‘ Feb. 12, 1945»
2 Sheets-Sheet 2
Patented Aug. 27,_ 1946
Joseph Maden. Chicago, Ill'.',,_ass1“gnor. to Marc.
mont Automotivetl’roduct'skInc.,_ Chicago‘, 111;‘, a
Application: liebruaryrlfl, 1945,<_Serial:No:. 573E420.
3"Claims. (o1. 97;:21719
The“ present invention relates. to. improved
Figure 8 is a vertical\ sectiona-Lview oil/the.
means for. nonerotatably. connecting. a member
such. as, a disk, wheel or the; liketo ‘shafts, of
different; sizes.
washer shown in‘ Figures'i.
shown, in Figure» 1“
Figure IO-is a. vertical sectionalv viewof th .
Animportant. feature, of: the. invention consists.
in providing a . revol'uble. member. such :' as a;- disk
washer- shown‘ in Figure 9;.
or the like. with, a. central opening shaped to
Figure ll is-a front view of a
receive. shafts. oi different. sizes. so, that. . the. re-_
voluble. member may be. selectively and. 110119110"
tatably connectedfto-either of two shafts.“
Figures is an end- viewot. the. right endwasher
Figure l2gis~arver~ticali sectional view of-‘Fig
ure 11.
A further featureof. the invention consistsiin.
Figure. 13 is a front viewvof afurther modi?ed-1
providing amounting for : disk harrows. in which
each; disk. isv formed, with; a, centrally disposed
square. opening. for. non-rotatably, receiving- a.
form. of- disk,
Figure .14. is a_vertical edge view. of Figure. 13.
Figure 15' isan enlarged detailed sectional view
squareshapedj axle ‘of thesame size, and in- which 15 showing a disk connected. to“ a. smallsizeshaft,
thesidesoi- the squaredopening; are provided. in.
termediate their ends with outwardly, extending,
Figurel?isl a view. similar to, Eigure.l5 showing
aligned grooves which form a substantially square
thediskconnected toa.v larger size shaft.
socket of?‘ a different. size than. the‘ square openHeretoforein-the mountings for disk harrows,
ing and are arranged to receive a square axle 20 the squareopenings in the disks for receivingthe
shaft of the same sizeasv the; socket,, so. thatone
supporting. shaft or axle were, of. uniformlsizetand.
or more. disks may be. conveniently ?xed, to,- axle
could only belused with} arsquare shaft; of. the.‘
shaftsof different sizes atjaminimum expendi»
same-size. In ‘order. to, provide means.- whereby
ture of‘ time and effort.v
these disks'may, bedeta'chably secured to square
Another object isto providethecenter portion
shafts. of. different sizes, each’ of. the disks‘ ll]. of
of a. disk adjacent. the shaft, receiving opening‘
the harrow (Fig.1) is.formedwithsarsubstantially
with a. reversed‘ curve or annular. groovefor the
square opening, ill; (Fig. 15l>= andeach of the sides
purpose of imparting. greater flexibility; and pref‘
12. of, the.’ opening: intermediate. its ends; has '
venting damage to the disk when in operation‘,
aligned? outwardly disposed? \L-shaped; grooves, or _
Other objectsand' advantages of the invention so recesses. I1 which form. a square socket;- l4. of
will'become apparent from the following descrip
smaller size than the square opening I I. For the
tion when taken in conjunction with the accom
purpose of illustration, three transversely curved
panying claims and drawings.
disks III are shown mounted on a square shaft. l5
Referring to the drawings in which I have
which is substantially the same size as the smaller.
shown several preferred embodiments of the in
square socket l4 so that the corners of the shaft
interlock with the aligned grooves I 3 to positively
and non-rotatably connect the disks to the shaft.
Figure 1 is a side elevation of a disk harrow
The disks ID are uniformly spaced on the shaft [5
constructed in accordance with the present in
Figure 2 is a vertical sectional View through one
of the disks shown in Figure 1.
Figure 3 is a sectional view taken substantially ’
along the line 3——3 of Figure 1.
Figure 4 is a detailed sectional view taken sub
stantially along the line 4-4 of Figure 1.
Figure 5 is an end view of one of the spacer
Figure 6 is a longitudinal sectional view of a
spacer sleeve.
Figure 7 is an end view of the left end washer
shown in Figure 1 showing the opening in the
washer in full lines and the normal position of
one of the retaining nuts indicated in broken
by the sleeves or spools l 6 each of which is formed '
with a central square opening I‘! similar in con
struction and size to the opening II in the disk,
and outwardly extending, aligned grooves I8’
which register ,with and are of the same size as
the grooves l3.
One end of the sleeve 16 such as
I8 is convex so as to bear against the concave
portion of the adjacent disk while the opposite
end I9 is concave to contact with the comple
mentary curved portion of its adjacent disk. The
ends of the shaft l5 are threaded as at 20 to
receive the retaining nuts 2 l'. A washer 22 hav
ing a curved inner face 23 and a central opening
24 similar in shape to the opening II and the
socket I4, is arranged to be clamped against the
outer left-hand disk ID by one of the nuts 2|.
Preferably theouter end of the opening 24 teré
square’ shaft for a 16" disk while others use a 1"
mate in a recess 25 for receiving the nut‘ 2 I. A
event it is desired to use the disks Ill with a dif
square shaft for the same size of disk. By ar
ranging the central opening in the disk so as to
accommodate a shaft of either size, the same disk’
can be conveniently connected to a large or small
size shaft and thus eliminate the necessity of
providing separate disks for each size of shaft.
ferent ‘size ,harrow shaft, this can conveniently
be done ‘upo’nldismantling the disks from‘ the
invention shown and described are merely illus
washer 26 has a similar shaped central opening
21 and is held against the concave portion of the
adjacent disk It! by the other nut so that when
the parts are set up, the disks are maintained
?rmly in locked position on the shaft l5. ‘In the
vIt; will be understood that the forms of the
shaft I4 and connecting themrto the larger size 10 trative of preferred embodiments and that‘ such
square shaft 28 (Fig, 16). It will be noted that ‘p - changes may be made as fall within the purview
' of one skilled in the art Without departing from
the shaft 28 is substantially the same size as'the
the’ spirit of the invention and scope of the
square openings I l in the disks and the openings
I‘! in the sleeves ‘l6, so as to snugly ?t into and .
engage these openings in order to lock the shaft . 15' I claim:v
‘1'. Av harrow having a shaft, a plurality of
to the disks and the sleeves. While the improved 7
spaced harrow disks carried thereby; spacer
form of opening has been shown associated with
a harrow disk, it will be manifest that the same mmembers on said shaft‘for spacing said disks,
said disks and spacer members having openings
may with equal ef?ciency be used for connecting
one or more rotatable members to shafts, axles 20 receiving the shaft, said spacer members having
means ‘ engaging. said disks on opposite ‘ sides
or the’ like, of different sizes and at a minimum
thereof, the walls of the disk openings engaging
expenditure of'time and effort.
the‘ shaft to ?x the' disks theretov for rotary ,
‘ In the modi?cation'shown ‘in Figure 11, the
curved disk 29 is provided witha square opening ‘ movementyand the walls of said disk openings
30, the sides of which, intermediate’ their ends 25 also having a con?guration for mounting on a
are formed with oppositely aligned grooves 3! so a different sized shaft of greater or less cross, sec-.
tion to hold said‘disks ?xed thereon.
2.‘ A narrow having‘, a shaft, iaplurality of
‘that ‘the disk may receive- shafts of different
. sizes; ‘The disk adjacent the central opening
spaced harrow disks carried thereby,1spacer,mem-, - _
30,has a reversed curved or_ annular V-shaped
groove 32 on one side and an outwardly spaced,
V-shapedannular groove 32a on its opposite side.
These grooves are concentric withrthe disk and
the groove 32a_diminishes progressively towards
be'rs' on] said shaft forspacing said disks’, said
~ disks and spacer membersih'aving‘ openings‘ re;
c‘eiving'the shaft, thewalls ofv said openings en
gaging, the shaft to. ?x the disks and'spacers
thereto for rotary “movement together, and the
the outer‘periphe'ry thereof. ‘This arrangement
of the grooves imparts greater ?exibility andalso 35, walls'of said openings also having a con?guration
guards against fracture‘ or damage of the disk " for mounting on a different sized shaft of greater
during operation.
or less cross section’ to, hold the said disks and
' In the modification shown in Figure '13, the
spacers ?xed thereon.
3. A harrow having a shaftwhich is polygonal
, disk 34 has a central opening 35 shaped to receive
shafts of. different‘ sizes ‘and may be reinforced by 40 ‘in cross section, a plurality of spaced harroW
' radial corrugations 36__which preferably extend’ "
outer periphery’ of the disk;
membersl‘h'aving, polygonal openings “receiving
"It will be seen, that; by reason of the particular
con?guration'of the central opening in the disk,
that simple, ef?cient and/positive means are pro
vided for connecting either'a single disk or‘ a
plurality of disks to shafts or the like of differ
ent sizes. Thus, the inventionis admirably suited
for use with disk, harrows since not, infrequently
themanufacturers of such devices provide av 78"
disks carried thereby, spacer members on' said
shaft for spacing said vdisks,'said disks and spacer p
from a point adjacent the central opening to the
the shaft, the walls of said openings engaging the
shaft to ?x the ‘disks, and spacers, thereto for
'rotarymovement together, and thewalls of‘said
openings also having a con?guration for?mount
ing on a different sized shaft .ofgreateror less
cross section to hold the said disks and’ spacers
?xed thereon.
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