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Патент USA US2125521

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Aug. 2, 1938.
'
H. A. RECEN
2,125,521 '
BATTERY TERMINAL CONNECTER
Filed May 25, 1937
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INVENTOR
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/% Zecen,
BY
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A‘IZTORNEY
Patented Aug. 2, 1938
TENT
UNITED STATES
FFHQE
2,125,521
BATTERY TERMINAL CONNECTER
Henry A. Recen, Kokomo, 0010., assignor of one
half to Charles W. Burnheimer, Breckenridge,
Colo.
Application May 25, 1937, Serial No. 144,625
3 Claims.
(01. 1'73—259)
This invention relates to improvements in battery connecters of the type described and claimed
in Patent No. 1,921,840, granted to me August 8,
1933-.
5
Practically all automotive vehicles are provided
with storage batteries and these must be removed
from time to time for cleaning, charging and
for other purposes.
It is well known that the ordinary connecters
other means for effecting a connection with the
cable may be substituted for the one shown.
The body of the connecter is of the ?attened
oblong shape shown in the drawing and has an
opening which has been designated by numeral 5
l3.
That portion of the opening which is posi
tioned above the line alt-x Fig. 1 is the arc of
a circle and in the embodiment illustrated it is
'10 are difficult to remove as the acid corrodes the
a semi-circle.
clamping bolt and makes it practically impossible to rotate it in the nut, with the result that
the connecter has to be pried off from the battery terminal and is frequently ruined.
15 ‘It is the object of this invention to produce
straight section l4 that connects with an in
wardly concave wall portion l5, whose surface
approaches the center of the semi-circular end
towards the right in Fig. 3. Positioned in the
opening !3 is a clamping member 8, the outer 15
One wall of the opening has a 10
a connecter that can be readily applied to a battery terminal and which can as readily be re-
end of which is curved on the same radius as
the semi-circular end of the opening !3; this
moved when necessary.
curved end wall has been designated by numeral
' Another ‘object is to produce a connecter of
20 such construction that there will be a wiping
contact between it and the battery terminal when
the connecter is applied so that a good electrical
contact will be established.
'
A further object is to produce a connecter of
25 such construction that the part which performs
the clamping action will be moved into position by the action of a screw and can thus be
forced into operative position.
The above and other objects that will become
30 apparent as the description proceeds, are attained
by means of a construction and an arrangement
of parts that will now be described in detail and
refe'ren'ce for this purpose will be had to the accompanying drawing in which the invention has
35 been illustrated in its preferred form and in
which—
Figure 1 is a top plan view showing the connecter in place on a battery terminal;
Figure 2 is a side elevation, looking in the di40 motion of arrow 2 in Fig_ 1;
Figure 3 is a section taken on line 3_3 Fig 2;
Figure 4 is a section taken on line 4__4 Fig 1;
it. The inner end of the clamping member 8 has
a deep notch ll between the two ?anges l8 and
S9. The bottom of notch ll is convex and en
gages the convex surface of wall 15 as shown in
Fig. 3. It is evident that when the clamping
member is moved along wall ill from left to right
in Fig. 3, the cylindrical surface it} will move
towards the center of the semi-cylindrical por
tion of the opening l3, with the result that if
the terminal 9 is in position, it will be subjected
to pressure due to the wedging action of the
clamping member 8 as it is moved towards the
right (Fig. 3). The clamping member has a
screw lil extending through an inclined thread
ed opening in the clamping member in such a
position that its end engages the inner surface of
wall H (see Figs. 1, 3, 5 and 6). When the screw
20
25
30
35
is rotated so as to move it towards the left in
the opening in member 8, the latter. will move
towards the right and slide along the concave
wall l5, thereby forcing the concave surface I6
against the battery terminal. The slight rotary 40
movement of surface 56 relative to the terminal 9
serves to effect a good electrical contact.
Figure 5 is a top plan View of the connecter
The upper surface of the connecter has a flange
showing the same detached from the battery ter-
2“ Whose ends have been deslgnated by. numem.ls
45
45
Figure 6 is a section taken on line 6-45 Fig. 5.
In the drawing, reference numeral 1 designates
the main body of_ the connecter and
numeral 8
.
.
.
.n
. e
g1221%}{351$e?téiggtlikrgogggggla?gniiIfr2525;
’
falling
out during shipment.
It will be noted
50 a movable clampmg membfer’ Whlle numeral 9
designates
the battery terminal post and ID the
.
that the end 2! of flange 29 functions as a stop. 50
clamping screw.
The body 1 0f the connecter has One end DI‘Ovided with an opening II for effecting a con55 nection with one end of a battery cable I2. Any
it will move the clamping member towards the
right, but will itself remain transversely sta
tionary,
In the patent above identi?ed, there is a clamp- 55
Since the end of the screw abuts the wall I4,
2
2,125,521
ing member that corresponds to the clamping
member 8 of the present invention, but it is in
tended to be turned by hand or by means of
impacts from a hammer or in some such way.
In
the present device, the movement is forced by
the action of the screw l0. Attention is also
called to the construction that prevents the
clamping member from falling out during ship
ment.
Let
now assume that we have a connecter
and desire to attach the same to a battery’
terminal 9. Screw I0 is turned so as to withdraw
it from the opening in member 8 until its end
is flush with the wall of the member and the
15 latter is moved towards the left as far as it will
go.
surface facing the semi-cylindrical surface and
a convex surface for engaging the eccentric con
15
cave surface and for movement thereaiong,
after which the screw is turned so as to effect a
means comprising a screw, threadedly associated
movement of member 8 towards the right, there
with and extending through the clamping mem
ber for engaging the Wall of the opening in the
connecter to push 'the clamping member along 20
the concave eccentric surface in adirection to de
crease the distance between the concave surfaces
and the end of opening l3. When the connecter
is to be removed, the screw is turned so as to
withdraw its end from Wall it, after which the
clamping member can be tapped with a hammer
and moved towards wall I4, thereby releasing the
pressure on the terminal.
'
The invention, although it has been described
' as a battery terminal connecter, is also suitable‘
for other uses, as for example, telephone and
radio ground connecters and electrical con
necters generally, and the uses pointed out are
for the purpose of illustration only.
Having described the invention what is claimed
as new is:
on‘ the clamping member and the semi-cylindri
cal surface on the connecter, and means com
prising the screw and a cooperating stop, on the
The parts may, of course, be covered with lead
in the usual manner.
35
cal surface on the connecter.
2. A battery terminal connecter having’ one
end provided with means for making connection
with a cable and the otherend provided with an
opening for the reception of a battery terminal
post, the opening having a portion of its wall
formed by a semi-cylindrical surface and an
other portion by a concave surface opposed to 10
the semi-cylindrical surface andeccentric with
relation to the latter, a clamping member posi
tioned in the opening, provided'with a concave
Terminal 9 is now inserted in opening I3,
by wedging the terminal between the surface 26
25
crease the distance between the concave surfaces
on the clamping member and the semi-cylindri
'
1. A battery terminal connecter having one
end provided with means for making connection
with a cable and the other end provided with an
opening for the reception of a battery terminal
40 post, the opening having a portion of its Wall
formed by a semi-cylindrical surface and another
portion by a concave surface opposed to- the semi
cylindrical surface and eccentric- with relation
to the latter, a clamping member positioned in
45 the opening, provided with a concave surface
facing'the semi-cylindrical surface and a convex
surface for engaging the eccentric concave sur
face and for movement therealong, and means
comprising a screw, threadedly associated with
50 and extending through the clamping member for
engaging the wall of the opening in the con
necter, to push the clamping member along the
concave eccentric surface in a direction to de
connecter for holding the clamping member in
the connecter.
3. A battery terminal connecter having one end
provided with means for making connection with
a cable and the other end provided with an 30
opening for the reception of a battery terminal
post, the opening having a portion of its wall
formed by a semi-cylindrical surface and an—
other portion by a concave surface opposed to
the semi-cylindrical surface and eccentric with
reiation to the latter,- a clamping member posi
tiened in the opening, provided witha concave
surface facing the semi-cylindrical surface'and
a convex surface for engaging the'eccentric con
cave surface, and for movement therealong, 40
means comprising a screw extending through
and threadedly connected ‘with the clamping
member engaging the connecter and pushing the
clamping member along the concave eccentric
surface in a direction to approach the semi
cylindrical surface, and means comprising a
?ange on the clamping member, a stop on the
connecter, and a screw carried by the clamping
member in position to engage the stop, for limit
ing the movement of the clamping member in
one direction and for‘ holding the clamping
member from removal.
'
HENRY A. RECEN.
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