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Патент USA US2409018

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Oct. 8, 1946. -
2,409,017
G. J. CARSON
MAGNETIC SWIVEL WORK HOLDER
Filed June 1'0; 1944
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Oct. 8,1946.
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G. J. CARSON I
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MAGNETIC SWIVEL WORK HOLDER
Filed J'uné 10, 1944 '
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2,409,017
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ICARSON
‘BY
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2,409,017
Patented Oct. 8, 1,946
UNITED STATES PATENT OFFICE
2,409,017
MAGNETIC SWIVEL WORK HOLDER
George J. Carson, Worcester, Mass., assignor to
0. S. Walker Company, Inc., a corporation of
Massachusetts
Application June 10, 1944, Serial No. 539,666
16 Claims. (Cl. 175-367)
1
This invention relates to swiveled magnetic
work holders or the like of the type which can
2
plates i8 and 20. Plate I8 is provided with an
aperture or recess as at 22 for the reception of
be positioned parallel or angularly with respect
a short stud 24 co-axial with the magnet assem
to a base or tool.
provided with a through aperture for the re
Objects of the invention reside in the provi
sion of a swiveled magnetic work holder com
prising a permanent magnetic holding device
swivelly or rotatably mounted in a support or
supports for the purpose of presenting objects
held thereto in angular relation to a tool or the
like; and in which the working magnetic flux is
turned on or off by means of a handle, the latter
bly l6 for journaling the same, and plate 20 is
ception of a shaft 26 axially aligned with the stud
24 and with the magnet assembly. Stud 24 and
shaft 26 are secured by any desired means to
the magnet assembly I6 for the purpose ‘of pro
viding for rotation thereof relative to the de
vice so as to turn the effective flux from the
magnet on and o? more or less as more fully de
being capable of assuming operating positions
scribed in Patent No. 2,268,011, dated December
and another position ‘wherein the handle is lo
cated in out-of-the-way location relative to the
support on which the magnetic holder is mount
ed, so that the magnetic holder may be swiveled
30, 1941.
or rotated without interference on the part of
the handle. .
.
A supporting bracket or the like2B is used to
mount one end of the magnetic holder and is
provided with a journal rotatably holding a large
boss or the like 30 which is secured to plate [8
or which forms an integral part thereof.
An
Further objects of the invention reside in the 20 other bracket 32 supports the other end of the
device and is constructed similarly thereto for
provision of a permanent magnet work holding
rotatably supporting a large boss 34 which is se
device having a rotatable means for turning the
cured to or forms a part of plate 20. By reason
holding flux on and off, said rotary means being
generally aligned with journals rotatably or. of the bosses 3!) and 34 it will be seen that the
swivelly mounting the holder for the purposes 25 magnetic holding device may be positioned either
horizontally or with the top plate vertical or at
aforesaid, there, being a co-axial means, such as
any desired rotative angle.
a shaft, extending through one of the journals
‘The boss 34 is provided with a central open
and terminating in a handle for operating the
ing co-axial with the magnet assembly [6 for
same independentlyvof the rotated position of the
holder so that the latter may be positioned where 30 the purpose of receiving the shaft 26 there
through, it being noted that shaft 28 is fast to
desired. without disturbing the setting of the
the magnet assembly for the purpose of rotating
handle and whereby the handle may be actuat
the same relative to the housing for the holding
ed to turn the holder on or off independently and
device. Shaft 26 extends slightly beyond the end
regardless of the position of the magnetic work
of the boss 34 and terminates in a reduced ?at
holder.
.
Other objects and advantages of the invention
will appear hereinafter.
Reference is to be had to the accompanying
portion 36 which pivotally receives the bifurcat
ed end 38 of a handle 40 by means of a pin 42.
The boss 34 extends outwardly of the end of
bracket 32 at one side only of the boss as shown
drawings, in which
Fig. l is a plan view showing a form of the 40 at 44 and this construction provides a pair of
stops cooperating with a pin 46 to limit the ro
invention;
tation of handle 40 to a 180° swing which is all
Fig. 2 is a view in side elevation, with part
that is necessary to turn the magnetic assembly
I6 from off position to on position as explained
Fig. 3 is a longitudinal section through the de
45 in the above identi?ed patent. Handle 40 is also
vice;
pivotable on the pin 42 to the dotted line posi
Fig. 4 is a view in end elevation showing the
tion
as shown in Fig. 2 aligning the handle with
device in angular relation; and
the shaft 26 for a double purpose, i. e., remov
Fig. 5 is a transverse section through the de
ing the handle from the operative path of the
vice.
machine in which the holder is used or the tool
The present invention is illustrated as applied
thereof, and also to allow a full 360° revolution
to a permanent magnet work holding device or
of the holding device without interference be
chuck comprising a bottom plate It, a top plate
tween the handle and the base of the bracket 32
l2 which may assume various con?guration-s as
or the machine ways to which the latter is bolt
desired, the top and bottom plates being secured
ed. A collar 48 is provided for showing degrees
together by any desired means such as screws
of inclination thereon with reference to some
or bolts l4 and shaped so as to provide a cavity
?xed point on the exterior of the bracket 32,
lengthwise thereof. This cavity provides for a
collar 48 being swiveled together with the boss 34.
rotary magnet assembly indicated at It which
The present swiveled magnetic work holder
extends substantially the length of the work
holder, the latter being closed at the ends by 60 may be turned to any inclination desired or may
in section;
v
3
2,409,017_
4
be used with the work surface horizontal or verti
cal or at any angle in between. However, when
the holder is rotated the shaft 26 and handle 40
rotate bodily therewith and to the same degree
so that regardless of the position of the holder,
the magnetic condition thereof is undisturbed;
and on the other hand shaft 26 may be actuated
by handle 40 to turn the holder on and oif at any
rotary operating member in the housing gener
ally co-axial with the holding device, and means
to rotate the ,rotary member, said means extend
ing through a bracket.
9. A device of the class described comprising
a pair of brackets, a permanent magnetic holding
device swiveled in the brackets, a rotary magnet
in the housing, the housing and magnet being
position of the holder and completely independ
generally co~axial, a shaft secured to the magnet
ent of the position thereof. Also the holder may 10 and extending through a bracket, and means to
be angularly positioned where desired without
rotate the shaft independent of the rotation or
interference on the part of the handle.
angular position of the housing.
Having thus described my invention and the
10. A device of the class described comprising
advantages thereof, I do not wish to be limited
a pair of brackets, a housing swiveled on the
to the details herein disclosed, otherwise than as
brackets, a co-axial magnetic unit rotatably
set forth in the claims, but what I claim is:
mounted in the housing, a shaft secured to the
1. A device of the class described comprising
unit, and extending through the bracket and a
a support, aligned journals therein, a permanent
handle for the shaft to turn the same and the
magnet holding device having a boss at each end
unit independent of the position of the housing.
mounted in the journals for rotation about an
11. A device of the class described comprising
axis on the support, means to turn the holding
device on and off, said means being rotatable
bodily as the holding device is rotated, and a
handle to operate said means for its intended
a pair of brackets, a permanent magnetic hold
ing device, a boss at each end of the holding de
vice, means forming journals in the brackets re
ceiving the bosses, a rotary member in the hous
ing, a shaft secured thereto and extending
through one boss co-axially with the housing, and
a handle to turn the shaft.
12. A device of claim 11 wherein the handle is
pivoted to the shaft for positioning radially or
in longitudinal extension of the shaft.
13. A device of the class described comprising
a support, a permanent magnet holding device
swiveled On the support, means to turn the hold
ing device on and off, a handle to actuate said
means, and a swivel connection between the
handle and means for positioning the former in
out of the way non-operative location.
14. A device of the class described comprising
a pair of end supports, journals therein, a chuck
body, bosses at the ends of the chuck body, said
purpose independently of the rotative position
of the holding device.
2. A device of the class described comprising a
support, a permanent magnet holding device
mounted for rotation on the support, means to
turn the holding device on and off, said means
being located generally co-axially with the hold
ing device, and arranged for rotation therewith
without disturbing the operating condition of the
holding device.
3. A device of the class described comprising a
support, a journal therein, a permanent magnet
holding device swivelly mounted by means of the
journal, an operating shaft for the holding de
vice located in the journal for swiveling motion
with the holding device, and means to turn the
shaft independently of the swiveling of the hold
ing device.
4. A device of the class described comprising
a support, a permanent magnet holding device
journalled in the support for rotation relative
thereto, means to turn the holding device on and
oil’, a shaft for operating said means, said shaft
bosses 'being located in the journals to swivel the
chuck, a movable magnet in the chuck effective
to turn the holding ?ux on or off depending on
the relative position of the magnet in the chuck,
' and means to move the magnet, said means being
located in a position to rotate as the chuck body
swivels but maintaining its relative position with
being located generally co-axially with the hold
ing device and being bodily movable therewith,
respect to the end supports so that the chuck
may be turned on and off at a single location
regardless of the rotative location of the chuck,
the said means being located axially of the chuck
body so that the latter may be rotated Without
and means to turn the shaft independently of the
rotation of the holding device.
5. A device of the class described comprising
a support, a permanent magnet holding device
swiveled on the support, means in the holding
device to turn the latter on and oil, a shaft for
interference to anything limited only by the
radius of revolution of the chuck body.
15. A permanent magnetic chuck including
operating said means, said shaft extending gen
erally co-axially of the holding device and being
means to turn the holding ?ux selectively on or
oil’, a rotary shaft to operate said means on a
bodily rotated as the same is swiveled, and a
handle for turning the shaft independently of
the holding device.
6. A device as recited in claim 5 wherein the
half turn, and a, handle swiveled to the shaft and
operative to turn the latter in either rotative
Gil
direction without swiveling, said handle being
effective to rotate the shaft in a single rotative
direction upon swiveling of the handle at each
extension of the shaft.
half turn.
7. A device of the class described comprising a
16. A permanent magnetic chuck including a
pair of spaced brackets, a permanent magnet (i7) rotary magnet adapted to reverse the direction
holding device rotatably mounted in the brack
of flux thereof upon a partial rotation thereof,
ets, a rotary magnetic member in the housing
a handle to rotate the magnet, a swivel connec
generally co-axial with the rotative axis of the
tion between the handle and magnet so that the
housing, and means to rotate the magnetic mem
handle is positionable radially or selectively
ber independent of the rotation of the housing.
swingable axially relative to the magnet to ro
8. A device of the class described comprising
tate the latter unidirectionally by swinging the
a pair of brackets, a permanent magnetic hold
handle through 180°.
handle is positionable selectively radially of or in
ing device rotatably mounted in the brackets. a
GEORGE J. CARSON.
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