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Патент USA US2125396

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.Aug- 2, 1938-
D. E. OLSHEVSKY
2,125,396
CONNECTING DEVICE
Filed May 4, 1955
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INVENTOR.
ATTORNEY.
Patented Aug. 2, 19348"
2,125,396.
UNITED
PATENT OFFICE
amazes
‘ oomcmo'nmcn
~ DiinitryEugen'e Olshcvsky. East Orange‘, N. 1.‘, as
signor to Bendix‘A'viation Corporation, South
I
Bend, Ind.‘, a corporation of Delaware
.
Application lilay V4, 1935, .ScriaijN’o. 19,885‘
'
2 Claims.
(01. 189-36)
4» The present invention relates generally to de
vices for'connectin-g a~plurality vo1.’ members to
gether, andmore particularly to devices for con- ‘
in.
necting together three or more members.
Heretofore,,in connection with devices of this‘
character, serious di?lculties' have presented
themselves when it was desired to disconnect
one of several -' members connected together by
an element extendingthrough all of said-mern-i
'
vice of Fig. 2 showing one of the members sepa
rated.
'
Referring to the drawing, the connecting de
vice embodying the invention in the form shown
' comprises a parent connecting element which‘
I extends through all members connected together,
and is adapted to engage the extremely located
, members.
In the present embodimentv said pa
rent connecting element is shown as a screw
l0 bers and the-disconnection of one of said mem- ' element 4 having a head 5 and a threaded shank 10
bers had‘to be ‘effected without disturbing the
respective positions ‘of the remaining members.
i, and'is, provided» with a cooperating washer
member ' ‘I.
In the illustrated example, said
Such‘ a difficulty’ presents itself, for'example, in
screw-element 4 extends through and connects
acase where some ‘kind of'structure 'is secured together three members designated as 8, 9 and
1s to'a casing by means oi.‘ capvrscrews, said screws '» I0; the inside member 9 being constituted by a
extending-‘through the casingvv and: supporting casing to which the outside or extremely located
some other structure on the other side of said
casing. In such a- caseremoval oi‘the'screws
in order to'separate one vof saidrstructureswould
20 result in objectionable separation? ofv theisecond
of said structures.‘
member 8, a pressure ?tting, is secured, said
screw-element 4 supporting at the same time the
other extremely located member I. inside of
casing 9.
,
In cases‘ where anioutside
Elements 8, 9 and III are provided with holes
' structure, such as some kind‘oi' attachment or
?tting,‘ is to be separated from the mainassem
arranged-in substantial alinement. The hole ll
in‘the ‘?tting 8 is made of larger diameter than
» bly for the purpose of’ repairs, su'ch separation‘
the diameter of ‘ the head 5, in consequence
'25 is so di?icult, that the‘ entire main assembly may
whereof the head 5 may pass through said hole
ll unless it is‘ restrained by the washer-member
‘I. Said‘hole II is counter-bored to a suitable
, have to be taken to the repair shop, which would
result in ‘a great inconvenience ‘and expense.
,
Accordingly one 01’ the objects of the‘ present
invention is ‘to provide novel means for connect
30 ‘ing together three or‘ more members'whereby
separationv'iof ' one» of‘ said ‘members is permitted
without disturbing or‘a?ecting the positions 0
depth ‘to receive the washer-member 1., thus pro
viding means operating to keep the hole H in
a proper alinement with the holes in the mem
the screw-member 4, but does not permit passing
after from-the considerationiof'the, detailed de
of the head 5. The hole in the member ID is
provided‘with an internal screw thread adapted
to engage the externally threaded shank 6 of
the screw-element 4, thus constituting means
operating. to engage one extremity of the parent
,
_
The above'and other'object's and advantages
35 either invention‘ will appear more-fully herein
scription- which fol1ows,‘.taken‘together with-the
. accompanying idrafwingiwherein» one embodiment
Of‘ the invention iS' illustrated.
It is to be ex
40' press‘ly- understood; , however;v that the drawing ‘
is for the purpose‘ oifillustration'v and description
only and is not designed asa de?nition oi the
limits ofv thevinvention, reference being had for
this‘ purpose‘ to the appended claims.
45 In' the drawing, wherein like vreference char
acters refer to like parts throughout the several
vi
connecting element 4.
man assembled position, such as illustrated i
in Fig. 2, the screw-element 4 is engaged by its
threaded shank 6 into the internally threaded
hole 01' the member I I), and inasmuch as washer
member 1 supports head 5 of the screw-element
4 ‘and does not permit. same to pass through the 45
hole Ii, all three members 8, 8 and I0 are ?rmly
and _ securely held together.
1 views,
Fig; 1 is a plan view of a‘portion oi casing to
which two other members are'secured with the
50v aid of- the" novel connecting’ device of the in
Several of the novel connecting devices may
be» used in speci?c instances depending upon
requirements. As shown in Fig. 1, iour'of them
Fig. 2 is a cross sectional view .of_one of the
novel connecting devices, taken on line 2-201‘
are used‘ for fastening pressure ?tting I and
member "I to the casing 9. Referring to the
construction shown in said Fig. 1, when it be
Fig.1;
comes vnecessary to remove the pressure ?tting
vention;
30
bers 9 and ID. The hole in the member S'is made
of a suitable diameter to receive the shank 6 of
-
the other membersi
20
"
‘
r
,
'
.I
_'
Fig. 3 is a‘ similar viewv otthe connecting de
8 without .disturbing the position of the member 55
2.,
2,125,396
It! with respect to the member 9, such separa
tion is e?ected by disengaging the screw-element
4 from the internally threaded hole of the mem
ber III and taking it out, and then removing the
washer-member ‘I; whereupon the screw-member
l is again inserted into the hole and, upon en
gaging its threaded portion into the threaded
10
hole of the member II, it is tightened down, the
head 5 pressing then ,directl'y'?rupo'n' the" member
9. A 10m:- washer >|2 may be use-(1pm desired,
when the screw-member l is re-inserted.
should be understood that screw-elements 4,"!
are not to be taken out all at the same time-but
one at a time, so that when one of said screw
elements is removed, the others remain in their
places. After all of the iiVasher-inémbers ‘l; 'l_
are thus removed in the above-described man
-
,_
ameterslot the holes in the other two members
and counter-bored, and a, plurality of connecting
devices, each comprising a screw-element having
a threaded shank for engaging the internal
threads of one of said tapped holes and having a 5
slotted head adapted to pass rotatively into one
of said enlarged holes, a. removable washer-mem
ber adapted to ?t into the counter-bore of one
of said enlarged h'oles
dpera'ti'ng therewith to
prevent‘-'said head from‘ passing '- into“ said en 10
largedrhole when all ,three members are to be
' fastened together, and operating to keep said
serewfelement in the center of said enlarged hole,
said screw~elements being removable one at a
time'for-removaif'of ‘the associated washer-mem- l5
and”beingq‘replaceable so that the heads
‘thereof pass‘ mm the enlarged holes in the other
ner, the member 8 may be separated; and” the; outside. member and contact the intermediate
position of the member I l with'respect to the member, whereby the last-named outer member
member 9 will not be a?ected by such separation
There are thus provided novel means’ for con
necting together three or more members where
byseparation done of the extremely located
members is possible without disturbing the relative
positions of the remaining members. It is‘ ap
parent that the novel connecting device of the
invention maybe advantageously employed in
numerous instances. It may be used, for example,
for .fasteningpressure ?ttings, to a directional
30
gyroscope assembly; for attachng various brack
ets .to electric motor assemblies, particularly ac
cessories to motor leads; for attaching shipping
metal shields to glass windows held by screwed
or bolted rings, without disassembling vand ,by
using bolts already present; for attaching special
l;ns'es to standard optical units; and so on. It
is to be expressly understood, however, thatthese
40
adaptations are givensolely for the purpose of
illustratingthe application of the vnovel connect
ing device to speci?c instances, and that they shall
not be construed as giving a, de?nition of the
limits oi the invention.
'
'
, Although only one embodiment>oL the inven
tion hasebeen illustrated and described, other
changes and modi?cations in the form and ar
rangementof parts,ywhich will now appear to
those skilled in the art, may be made without
departing from the scope of the invention. Ref?
erence is, therefore, to be had to the appended
claims for a de?nition of the limits of the inven
tion.
'may be removed after all the washenmembers 20
have been removed and the screw-elements have
been reassembled with'the othertwo members.‘
2. In combination withthree members adapt
ed to be connected together and provided ‘with [a
plurality, of holes, the ‘holes. of‘ each member be
ing arranged in substantial alignment withthe
holes, of the other members, the'holes' in one
ofthe outside members being providedv with in
ternal screw threads‘v and the holes of theother
outside member being enlarged, aplurality cide
vices for connecting said members together, each
ing' tapped and the holes in the other outside
member being of a larger. diameter than the di
30
device comprising a screw-‘element that extends
through the holes of the intermediate and said
second-named outside memberiland into, the hole
in said ?rst-named outside member, said element as
being provided with a slotted head that hasvsm‘all
er transverse dimensions than said enlarged holes,
said hole thereby’permitting rotative movement
of said head therein to a position where said head
abutsthe intermediate member, said element hav
40
ing an external screw thread on its end remote
from the head, adapted to engage the internally
threaded holeof'said oneoutside member, and a
removable element adapted, when in place, to pre- ,
vent said head ‘from passing into-said ,enlarged 45
hole. when the-three members are, to be fas—
tened together, the screw elements being remove
able one at a time for removal of the associated
removable elements and being replaceable so that
the heads thereof passjinto, the enlarged holes
in saidother outsidemember and abut the‘ inter-1
What is claimed is:__
I Y mediate member, whereby the said last-named
1. _In combination with three members adapt
outer member may be removed afterall of the re
ed to be fastened together in contacting relation
movable elements have been removed and the
ship and provided with holes having a common
axis, the holes in one of the outside members be
25
screweelements have been reassembled with the
other two members.
>
I,
I.
.
DIMITRY EUGENE OIQSHEVSKY. '
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