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Патент USA US2406070

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Aug. 20, 1946.
Filed April 28, 1944
5 Sheets-Sheet 2
Aug; 20, 1946.
Filed April 28, 1944
5 Sheets-Shes?l 3
W M,
Patented Aug. 20, 1946
Rudolph Funk, Warminster, Pa.
Application April 28,1944, Serial No. 533,215
s claims. (Cl. 151-21)
This invention relates to lock nuts and more
particularly to an improved nut of a self-lock
ing ‘character and embodied in a novel and
pur-poses of the invention;
2’ and Fig.
l 7 showing
how the contracted upper portion of thebody
may be slotted;
unique, unitary or self-contained structure
which is capable of self-retention when placed
Fig. 8 is a partial side elevational and sec
tional view of the supplemental resilient ring`
in use on a bolt, screw or other like-threaded
member for the nut in the form thereof as illus
trated in Figs. 1 to 4, inclusive;
The prime object is to `produce a simple yet
practical and highly efficient, self-retentive nut
which is readily applied‘in use; can be placed
in any desired position lengthwise of the bolt,
or other threaded
member of Figs. 1 to 4, inclusive;
Fig. 10 is a top plan view of a modiiied form
of nut body proper;
andr not
Fig. 11 is a side elevation of the nut body
necessarily tight against the piece of work nor
aided by an additional, separate locking nut
or element; and is removable and re-usable at
shown in Fig. 10;
Fig. 121s a sideelevation of the complete nut
with the resilient ring member attached' to the
will, without loss in its self-retentive qualities
and eifectiveness.
Y _
Fig. 9 is a top yplan view of the resilient ring
modiñcation of thebody portion proper shown i
in Figs. 1,0 and 11;
The invention consists. structurally in the
Fig. 13 is a top plan View of another modiii- »
provision of a nut having a rigid main body
cation of the nut structure;
portion, bored and threaded to ñt (substan 20 Fig. 14 is a side elevation of the nut shown
tially in the usual way) the correspondingly
in Fig. 13;
Fig. 15 is a section on theiine |5_|5 ofv
Fig. 13;
threaded portion of the bolt, screw or other
element for which it isintended to be applied
in use.
This nut has a normally contracted,
Fig. 16 is a sectional view` of a further modi
integral portion which either is inherently 25 ñcation of the nut structure;
resilient in itself or else conñnedly surrounded
and supplemented by a separate resilient mem- `
Fig. 17 is a side elevation of the nut shown
in Fig. 16; '
ber in close cooperative association therewith.
Fig. 18 is a sectional viewof a modification
The bore of this inherently resilient or resil
of the nut structure shownv in Fig. 16;
iently-coniined portion is substantially in con 30 Fig. 19 isa sectional view of a welded two
tinuity of the bore in the main `body portion
piece structural modification;
and correspondingly` threaded but at least
slightly contracted whereby this body portion
Fig. 2O is a sectional view, illustrative of _the Y
original formation of an integral single-piece
expands and reacts tolengage the bolt or other
nut structure;
threaded element clampingly like a brake band 35 Fig. 21 is a sectional View, illustrativeof the
and thus holds the applied nut in place thereon.
procedure in ñnishing the nut from the pre
Specific but non-limiting practical examples
formed body shown in Fig. 20;
of the nut of the present invention are set forth
Fig. 22 is a view in partial side elevation and
section of the nut as produced according to the
in conjunction with the accompanying illus 40 procedure illustrated in Figs. 20 and 211;
trative drawings, in which:
Figs. 23 and 24 are sectional views illustrative
Fig. 1 is an elevational and partially sectional
of the original and the ñnal stages in the forma-`
View illustrating the application of the nut in
tion of a modification in a single-piece nut
with particularity in the following description
one of its forms to a bolt placed in a piece of
Fig. 2 is a fragmentary, sectional view on the
line 2-2 of Fig. 1;
Fig. 3 is a top Yplan View of the nut alone;
Fig. 4 is a section on the line 4_4 of Fig. 3;
Fig. 25 is a partial side elevation and section
of the nut completed in accordance with the
procedure illustrated in Figs. 23 and 24; `
Figs. 26, 27 and 28 are illustrative ofthe
adaptation of the locking nut of the present in
, Figs. 5,' 6 and 7 are sectional detail views 50, vention in an anchor-plate type of construc
illustrating the stages in the forming of the nut;
tion; and
Fig. 5 showing the nut body proper as originally
Fig. 29 is a view showing how an anchor-plate
`formed with la straight cylindrical, screw
type of construction in accordance with therpres
threaded bore; Fig. 6 showing the reduced up
ent invention may be ,applied with a bolt ¿to a
per'portion of the'body as contracted for the
piece of work.
îÍ‘v W;
the adjacent base or mainbcdy'portion 35 of
Y Referring now to the drawings in detail, and
the nut.
In Fig. 15 the general structure is substan-Y
tially the same as that of Figs. 2 and 4 except
nate, respectively, two pieces of work joined to
gether by Van ordinary bolt 34 in a conventional 5 Y that, instead of the edge portion 40 of the collar
‘ iirst more particularly to Figs. 1V to l5, inclusive,
the numerals 32 and 33 (see Figs. 1 and 2) desig- `
or ring member being fitted inwardly of a mar
manner except as to the use ofra locking nut n
` ginal bead »or shoulder, as at 4|, it is fitted out
of the present invention> for the fastening there- l
side an annular shoulder 42 which is formed on
of.> The applied nut of the present'V invention
the base or mainr body portion 35V some distance
v inwardly ‘from thetmarginhthereof.
is designated'generally by thenumeralââ.
The' nut', Íîsi Chef
Í f
Y'In‘prodlí‘ciiig,the integral'base ’or main body
uniquest’ru‘c ral-¿form and arrangement and ltsl
_ Vportion 35 and reduced neck portion 36 for all of .
relativeinherent resiliency in a part or parts;
' ‘the herein described nut structures the proced
Y ' thereof vas hereinafter more speciñcally described" "
uregis the same, except as to Vthe'provision for '
V»in connection. with the _variousY modiñcatio1_1s,';f>
whereby" it clampingly engages'arounditheàen-_
the attachment thereto of theresilient element
of the
neck portionaiïec'tsy
36 in theV
tion andfother influences which tend tojj'ar
move the ordinary conventional nuts »tout -`Lof» ,inï-fthe'Lprocedure is1to _form the body portion
20 proper substantially as -shown in Fig. 5, withïa
tireïcircurnference of the bolt 34?j‘and"`~‘is Athus"
self-retentive in ,resistance to the-geiîeetpf‘fyibra
continuous, straight, ~ cylindrical î'bore :V143 ¿screw
threaded :throughout :the :entire: length ~ztnereof
and correspondingìto fî-the Vithrea'dirigr~of .thev bolt
or'the 'like to which-the .nutfïis to-lbewíappliediin
user. îTh’e neckfporti'on‘ 36 =isèthen2compressedland
squeezed inwardly, allA aroundgwherebyft'o de-=
' threaded porción .of-f the nooit. so, ftoq'fthe nut of;
form and contract it slightly as indicatedéinßFi'g;
6 andígive a tapered'restrictionïto that '.partJ-of
the. screw»t'hre'aded ?boref43
wis located
the present inventiò'n'can :be @removed from"V the:
` bolt'îvsiithoiit?ï-inîjuïr '
each is re-usabl
therb'ne thereof.
dover again. Y
the neck-portion.
. :An _external annular-'shoalïdè'riîMI-lisilformea:on ~
` ' Figs. 1 to 4, inclusive,.mmprisesfaÍ sjiiestanfnai,
the neck portion v>36 of'ïltlieyut be'dïy!- proper fad-l
jacent its outer end land'-the"òuterfïend-por-tionS
producing-- an upstanding 'annular-flange ~46- in
pro'ximitylto ‘said-¿annular shoulder l'44.¿3- ~
The external diameter _of the »fflange-MB corre
sponds to tli'eïdia’meter'of the inwardly ¿flanged
lrlifng'im'eniber 31,*’whichï
opening 39er; efcollarf'or
nut, but the conñnin’gl-ce
isferzfa eaitieuiarïarrdfïifmefeiinyl resilient ,char-nV acter, so'that, when fitted about the ne'cfkjpc'wtiony ~
latter -m’e‘rïnb‘er isfslipped Foyer the'th-us ‘formed and
contracted'fend-ïportion loi «the Yneck ' 36, with` -its
» internal annular fiar-ige 33»resting‘onlt-he shoulder
` tion'fM-fófltheï collar-or ring- member>31 is'ñtted
tached' from?siiclreleniehtejiternse;_ y
spun-‘for otherwise tur-ned outwardly' and `-d'own
tightly uponetheinturned flangeïäßjthereby proç'
#TAS-'shown more ¿clearly in Fi"s;'f8 î‘and"'9,"the
collar or ring member 31 is in theïîform'pf'a
c'u'pped orLaïi'ir-ìularly‘ñanged ring. The inwardly
îerail ’Structural scheme
ñaríged portion 38,"s'urroun‘dir'igjthe central open
ing 39 of this memberßL-‘is‘ñtted tight1y"`ab‘out
theio'uter- end p'o‘rîti'o‘n'A 46 lofthe frestri‘ct'ed ‘ neck
in'gJof »the‘collar >or 'ring member 37 thereonyex
‘l‘l‘fitsfÀ larg?er'f'èdgè ‘Qol’tîónüû Àheld V`in
ceptl as -to'theïl'ower annular-edge’por'tion'w of'
annularengagementiwithlthefadj ac'ëntfm'ai‘n body
pòrtion'ï‘3`r5ióf the ‘nut (seeìligs.> 2,'“4' and l5) `Also,
theftop Eimer 'surface 'for the eüp 31' is-‘près'sed
tightly'oyer'thelolltsídè diameter öff' an .annular
shoulder. -44 for-med -on -theî neck- 33 of lthe» nutv
jüstîßél'öw tnësain’ëiid pórtionflls; :
articularillu'strated in Figs. 2
¿inwardly lflangedj-prortion ~38y of Hthis
__ingcollar or ring-31 Vis held iin V~an--annular
groove ¿formed finthe'fzadjacent‘neck portion by]
, ar procedure to be described herein morelfullyfin
this> structural form of >the 'nut Vfthe
larger edgejportion ¿lll-"of the`fcollar'or ring .mem
ber-#fis lfitted; inwardly ì'behind an .iupst‘alndirigI an‘
nular vbead or shoulder 4l formed marginallyïonj
said member 31, which latter, injthis particular
s'idel'of- an fannularfshonlder^42 formed on the
base V>or 'main body portion "35 'of' the‘nut 'instead4
of _ inside
of the marginal bead
Vor shoulderV " 4|
In applying the nut ofthe r>presentfinye`ntion',to`
a correspondingly t‘hreade’dfrbolt, 34 ‘ori-,he îlike,;in
use,A the ¿normally contractedgtapered neck'por
tion 536 lcontainin’gfthe, restricted 'upperïp'art ’of Y
theI 'threaded Ybore-’43 tis forciblyî z-:èxparided.` L‘Atï
theis'ame time V,the iconiiningj collar or`rir'i’g'linem-"Y
heres-'ias `ceiu'espomiiaglyjezpandecrami. is then.
cdnstantlyïrea‘ctive ‘ andY ~tending` _to ‘urge the thus`
ëiiïpafídedi‘ñëck-'pol'tion ¿36 "baCk to itsl’norm`231`
set, whereby the` nut is clamped` tightly onthe' '
bolt; _34 or 'other like _screw-threaded element,
and, ,without extraneous assistance, is thus >ef-l
fectively self-resistant to vibration and shock
which might cause movement `and displacement
In'the particular form shown in Fig.. 16 the"
collar portion proper 31 has an interna1v annular
flange 50 that is fitted snugly around the'up
standing top flange 46v of the neck portion 36 '
and rests on the lateral annularV shoulder 44.
of l an ordinary conventional nut not jammed
Thel lower skirt portion of the ,collar 31 as thus »
tight4 against an adjacent piece of work or else
held in place by a separate jam nut tightened
fitted on the; >neck portion 36 is‘ afterwards.
crimpedv inwardly, forming an internal, annular '
bead 5l in tight engagement under the shoul
It is here particularly stressed that -the nut
of thepresentinvention, in some of its practical
uses, ,need not be necessarily tightened against a
piece ,of work but mayu‘be spacedsome distance
apart therefrom, and yet it is self-retentive in
der Y44, thereby holding the collar 31 securely inv
place. The function of this particular collar
member is primarily for the same purpose asv
those in the herein previously described struc
tures, but, in addition,.affords. a protective cover- »
whateverrposition it is placed on the boltV or the 16 ing at the outer end ofthe nut.
like to which it is applied in use.v Not- only this,
In this modification shown in Fig. 16> the an- »
but itcan'be readily removed, at will, without in
nular top face of the base or -main body portion Y
juryîto itself` or the screw-threaded element on .
of the nut is plain and fiat throughout and the
which itis applied; and, because of the inherent , lower edge portion of the collar or ring member
resiliency createdv by its peculiarly , characteris-- 20 31 just touches the adjacent face of the nut
tic make-up, whereby it recoversits normal set,
body, and the‘only means of attachment of said
it Acan be used- over and over again with effect
substantially equal to that of its first use. .
member 31 is the aforesaid fitting of the internal' »
flange 50 on the reduced neck portion of the nut
While in some structures the inherent though
body, together with the annular, inward crimp
limited yieldability of the reduced neck portion 26 ing of the skirt portion of said member 31 under
36 of the nut bodyY proper permits of ample
.the annular shoulder 44 on the neck portionv 36.. Y
expansion for the purposes olf the invention and
In Fig. 18 the collar member 31 is made in two
said neck portion can be left solid and unbroken
pieces, fitted one within the other. The inner
throughout its entire extent, it may be more
piece 52 is flanged inwardly and fitted to the
practical and satisfactory to cut it lengthwise
neck portion 36 of the nut body substantially as '
at; one or moreplaces to enhance its contract
in the modifications illustrated in Figs. 1 to 15,
inclusive, and the lower edge portion of the piece
tionsof _the invention Where the supplemental
52 is fitted inside the marginal bead or shoulder
resilient collar'` or ring> member 31 is provided
4I of the base or main body portion of the nut
inacomposite structure. Thus, as shown in Figs. 35 substantially as shown in Figs. 2 and 4.' The
3 and f1, the neck portion 36 may have an open
outer piece 53 of this two-piece collar 31 is formed
substantially the same as the single-piece collar f
ended slot 48 cutor otherwisev formed therein; ,
or, as_.shown in Figs..10 and 11, two of such slots
in Fig. 16, i. e., it has the crowned cover portion
maybe provided in diametrically opposite- rela
49, but is without the interna1 annular flange 50,
tion` to ,each other. A larger number of these 40 it being plain surfaced linteriorly so as to fit tele
scopically over the inner piece 52.
slots Imay be provided >in some structures, de
pending. principally on the size of the nut and
The two pieces 52, 53, of the collar member, as
theparticularuse for which it is intended; but,
fitted together, are both crimped inwardly as at
in the more common and general use of the nuts
54, and -engaged retentivelyl under the annular
ofuthepresent invention, either the single or ' shoulder 44 of the neck portion 36 ofthe nut body
ibility-_andexpansibility, particularly in adapta
double', slotted provisions and arrangements will
in a manner substantially the saine as for the
single-piece member shown in Fig. 16.
The' structures illustrated in Figs. 1_ to 15, in
clusive,^‘¿are substantially alike except as to the
particular fitting of the lower annular edge por
tion;ofthe confiningcollar >or ring member l31
to;the base or main body portion 35 of the nut,
and/inthe `number of slots 48 in the reduced neck
portion 36. As to the provision of said- slots 48 it
In this l
two-piece collar structure the lower annular edge '
portion of the outer piece 53 just touches the top ‘
of the annular marginal bead yor shoulder 4I
of the base or main body portion of the nut.
A further structural modification is illustrated
in Fig. 19. This structure, in general, is quite
similar to those previously described, and also
is here noted that the same can be cut in the 55 except as to the manner in which thek flanged
neckl portion 36 either before the compressing
collar member 31 is attached to the'body por- '
and Vcontracting of this part, but preferably after`
tion proper of the nut. In this particular modi
the screw-threading of the bore 46 and not until
fication, the inward, annularly flanged upper
the nut body proper has reached the contracted
end portion of the collar member 31 is fitted on
stage shown in Figs. 6 and '7 in the process of 60 the adjacent end portion of the neck part 36 of
In Figs. 16, 1'1 and 18, the nut body proper is
substantially the same in general structural form
as- those above described. The resilient confin
ing collar or ring member, however, is in a mod
iiiedjform, in thatY it is cupped in an integral
formation providing a crowned portion49 which
covers and encloses the upper open end of the
the nut body substantially as in the previouslyde
scribed structures, but the lower edge portion
of the collar member 31 is welded, as at 51, to the
annular top face of the base portion of the nut
body proper.
While the herein described multiple-piece struc
tures may be the more desirable and practical'in
the manufacture of the nut of the present inven
nut body proper and is spaced a sufficient Vdis
tion because of certain advantages in the'proce
tance therefrom to afford ample clearance for 70 dure incidental thereto, the nut can be made in
the protruding end of the bolt .or like element
an integral one-piece structure and is As_o con
to .which the nut is applied, as, :for example, in
an instance vapproximately like> that illustrated
in_Fig.`_.l,¿where the applied nut is adjacent the
templated, and exemplification thereof is illus'- "
trated in Figs. 20 to 25, inclusive..- There are two
separate illustrations of such a structuraspecif
75 .icallydifferent in ‘details of the procedure in form-v "
eratively surrounding and confining said nor
mally contracted lesser part of the nut body
proper and Vexpanding therewith but reacting
constantly to return this nut body part back to
its normal form, said surrounding and confining
collar member being capped and flanged and at
least a part thereof being ñxedly attached to an
adjacent part ofthe nut body proper.
4. A self-retentive nut of the character de
scribed, comprising a rigid, non-deformable and
form-retentive major body portion proper, bored
° `
and Vbored in continuation of the bore of said
major body portion and with like screW-thread- ,
ing, :but appreciably constricted substantially cor
respondingly to the contraction of said lesser
body portion, said lesser body'portion 'being in
herently resilient to permit limited expansion
thereof When the nut is placed on the bolt or simi- '
lar element and is reactive constantly to self
recovery of its normally contracted form, and
said lesser body portion being formed with an
integral circular cuter flange at its upper end,
and conventionally screw-threaded, an integral
said flange being turned down in spaced relation
lesser body portion being deformable and ex
around said reduced and contracted body portion
pansible, reduced in size and normally con
and with its margin in supported engagementv
tracted, and bored in continuation of the bore
with the major body portion proper of the nut.
of said major body portion and with like screw- ’
6. A self-retentive nut of the character de
threading, but appreciably constricted substan
scribed, comprising a rigid, non-deformable and
tially correspondingly to the contraction of said
form-retentive major body portion proper, bored
lesser body portion, said lesser body portion being
screw-threaded, an integraly
inherently resilient to permit limited expansion 20 lesserconventionally
body portion being deformable and expan
thereof when the nut is placed on the bolt or
sible, reduced in size and normally contracted,
similar element and is reactive constantly to self
and bored in continuation ofthe bore of said
recovery of its normally contracted form, and
major body portion and with like screw-thread
said lesser body portion being supplemented in
ing, but appreciably constricted substantially cor
its function and effect by a separately formed but
respondingly to the contraction of said lesser
integral part of the nut body in a one-piece struc
body portion, said lesser body portion being in
ture as distinguished from a multiple-piece com
herently resilient to permit limited expansion
posite structure, the said supplemented part be- '
thereof when the nut is placed on the bolt or sim
ing formed into a partly spaced, though integral
element and is reactive constantly to self
collar surrounding said lesser body portion and 30 recovery
of its normally contracted form, said
affording a support between the same and said
major body portion of the nut being formedwith
major body portion of thenut.
an upstanding `annular collar-like flange sur
5. A self-retentive nut of the character de- y
rounding and spaced from the lesser body por
scribed, comprising a rigid, non-deformable and
tion and with its upper margin turned inward
form-retentive major body portion proper, bored
into supported contact throughout with the ad
and conventionally screw-threaded, an integral
jacent upper end of said lesser body portion.
lesser body portion being deformable and expan
sible, reduced in size and normally contracted,
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