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Dec. 3, 1946.‘
‘
c. RINGWALD
2,411,980
ELECTRODE HOLDER
Filed Sept. 25, 1943
'
2 Sheets-Sheet 1
_
INVENTQ .
TTORNEY.
-
Dec. 3, 1946.
c. RINGWALD
2,411,980
ELECTRODE HOLDER
‘Filed Sept. 25, 1945
2 Sheets-Sheet 2
INVENT R.
WTTORNEY.
Patented Dec. 3, 1946
r 2,411,980
UNITED STATES PATENT OFFICE
2,411,980
ELECTRODE HOLDER
Clarence Ringwald, Spring?eld, Ohio
Application September 25, 1943, Serial No. 503,735
20 Claims.
(01. 219-8)
1
This invention pertains to electric welding
' having relatively few parts, and be unlikely to
equipment, and more particularly to an elec
trode holder or welding rod clamp for adjust
get out of repair.
A further object of the invention is to provide
ably holding a welding rod and conveying elec
an insulating encasement for the operating
tric current thereto while it is being used.
CR parts of the holder, which does not materially
While for illustrative purpose, but with no
increase the size or weight of the device, and
intent to unduly limit or restrict the scope or
which affords maximum protection aaginst elec
application of the invention, it is herein shown
tric shock and burns, and which is easily and
and described as embodied in an electrode holder
or welding rod gripper of ‘the inter-pivoted
clamp jaw type, it is to be understood that it
is not limited thereto, but features of the present
disclosure are readily applicable to holders of
readily removable and replaceable for inspection
and repair
10 ing
casing.
other construction or style.
of parts, and renewal of the insulat
A further object of the invention is to provide
an insulating encasement, at the surface of
which no metallic parts or attachment screws
In performing welding operations, the oper 15 will be exposed through which accidental cur
ator’s eyes being protected by goggles, or his
rent leakage might occur or shock be su?ered.
head being enclosed in a protective hood, his
A further object of the invention is to provide
range of vision is restricted, and in moving the
a ventilating system of air spaces and passages
welding rod holder about, the rear end or nor
and ventilating ports for circulation of air about
mally inactive terminal of the electrically
the metallic parts for cooling purposes and the
charged rod may accidentally come into contact
dissipation of heat.
with the work at a point other than at the weld,
A further but none the less important feature
or may contact some other body, in which event
is the provision of an insulated stop and pro
the rod may become welded fast at such point,
tector for the rear or normally inactive end of
or damage result.
25 the welding rod to prevent accidental direct
The rod holder elements being directly con
contact thereof with the work or operator, or
nected in the electrical energizing circuit, and
with some other conductive body.
being quite close to the welding operation, de
A primary object of the invention is to pro
velop quite high temperatures. It is therefore
desirable that the various electrically charged .
parts be electrically and thermally insulated.
In the present instance there is contemplated
an insulating encasement for the charged me
tallic parts of the holder, which not only pro
tect against contact therewith and electric shock
and burns, but which also provides air spaces
and passages and ventilating ports through
which atmospheric air may readily circulate for
cooling the metallic parts and dissipation of gen—
erated heat.
The insulating encasement not i
only protects the welding rod holder parts, but
also protects and forms a stop for the rear end
vide maximum insulative protection against
electrical shock and grounding, and against heat
and also maximum air cooling of the heated
parts.
With the above primary and other incidental
objects in view as will more fully appear in the
speci?cation, the invention intended to be pro
tected by Letters Patent consists of the features
of construction, the parts and combinations
thereof, and the mode of operation, or their
equivalents, as hereinafter described or illus
trated in the accompanying drawings.
In the accompanying drawings, wherein is
illustrated the preferred but obviously not neces
sarily the only form of embodiment of the in
of the rod, which prevents accidental contact
thereof with the work or another grounded body.
The insulating encasement also prevents short 45 vention,
Fig. 1 is a perspective view of an assembled
circuiting or current leakage, and accidental
welding rod holder embodying the present in
welding of the holder to a support when laid
vention equipped with a detachable hand guard
down during idle intervals.
or shield.
The object of the invention is to improve the
Fig. 2 is a further perspective View thereof in
construction as well as the means and mode of 50
operation of welding electrode or rod holders, - somewhat different position with the hand shield
whereby they may not only be economically
removed.
manufactured, but will be more ef?cient in use,
Fig. 3‘is a side elevation, partly broken away,
safe in operation, compact in form, of relatively
of the assembled rod holder.
light weight, easily operable to release the rod, 55 Fig. 4 is a side elevation, partly broken away,
2,411,980
of the rod holder assembly with the insulating
encasement removed.
Fig. 5 is a bottom plan view with a portion of
the insulating encasement broken away.
Fig. 6 is an end elevation of the assembled
holder.
Fig. 7 is an end elevation of the terminal of
4
material is straight and of a convenient size to
serve as a handle for the rod holder. Enclosing
the forward portion of the main frame l and the
stationary jaw 22 is a cutaway continuation it
of the sleeve l8, which may be integral there
with, but is preferably a separable section. The
forward or terminal portion of the insulating
the main body.
'
section 19 is cut away at one side from the top
Fig. 8 is a transverse sectional View showing
to approximately the horizontal diameter of such the relation of the insulating material and the 10 continuation or forward insulating section iii to
welding rod, the end of which is protected
expose the jaws 2 and 13 at one side, as shown in
thereby.
Figs. 1, 2, 3 and 5. This enables the welding rod
5 to be inserted and adjusted from such side only.
At the opposite side the arcuate wail of the
Like parts are indicated by similar characters 15 insulating section it continues upwardly almost
throughout the several views.
to the vertical diameter of the circular insulating
Referring to the drawings, i indicates the me
section. Thus, the latter side of the insulating
tallic frame member or main body, terminating in
section encloses the opposite side or the jaws 2
the stationary clamp jaw 2, to which is pivoted
and 15 and overhangs and protects the end of
at 3 a movable clamp jaw 4. The movable jaw 20 the welding rod 5, for which this arcuate wall
4 is .oifset somewhat relative to its pivotal point
of the insulating section as forms a stop. This
3. The working face of the stationary jaw 2 is
prevents the rear end 5’ of the welding rod from
longitudinally and transversely grooved, as at
accidently contacting the work or other body, or
2' and 2”, to provide selective seats for the
being contacted by the hand of the operator. At
welding rod 5. The working face of the mating 25 the top of the insulating section ill and rear
jaw ll is beveled at 5' to agree with the longi
wardly oi the cutaway portion there is a longitu
tudinal seat groove 2’ of the lower jaw 2. The
dinal slot in the top thereof through which the
medial portion of the main body i is longitudi
jaw insulating block H projects. The differen
nally-slotted at G to reduce the bulk of material,
tial shapes of the metallic main frame l and the
and with it the weight or" the holder, and to pro 30 interior of the cylindrical insulating sections 58
vide an air chamber through which atmospheric
and is aiiords an intermediate air space 2?} be
air may circulate for dissipation of radiated heat.
neath the jaw 2 and main frame l which com
The terminal ‘5 of the main member is somewhat
municates with the air space S in the body of
enlarged and is provided in its periphery with
the member !, and also provides lateral air spaces
longitudinal spaced grooves 8, affording air pas 35 2: which communicate with the bottom space ,
sages interiorly of the insulating encasement here
28 and with the air space '6. These air spaces
Fig. 9 is a detail view of a detachable hand
guard.
after described which lead to the air space 5.
The enlarged terminal 1! is bored and threaded
28 and M and the space 6 of the main body
also communicate with the interior of the handle
with a tapered thread to receive a correspond
section it about the cable is}, through the pas
ingly threaded coupling 9 of an electrical con 40 sages 8 in the periphery of the terminal l.
ductor cable it.
The bottom of the insulating section i9 is pro
Overlapping the top and rear end of the oscil
vided with a series of air ports 22 through which
latory clamp jaw ii is a block ll of insulating
atmospheric air may enter the spaces 26, 2E and
material ‘which is securely attached to the jaw
G for circulation about the heated metal parts
by countersunk screws la. Additional screws
for cooling the latter and dissipating the heat.
i3 secure a channel shaped handle lever ill to
To protect the section it from being burned by
the insulating block 5 i and hence to the movable
heat radiated from the point of welding 01 er
jaw 1i.- A helical tension spring I5 is positioned
ation, a shield 23 is preferably attached to the
within the slot or air space 6 of the main member
section it in parallel exterior spaced relation
l, with one end thereof hooked about a cross pin
therewith beneath and to the rear of the cut-1
5% extending therethrough, and its other end ll
away portion. The relative spacing of this shield.
seated in a socket or bore in the rear end of
enables circulation of air in the space interme
the insulating block H. The spring is thus ex
diate the shield and the insulating section. Such
cluded from the electrical circuit and does not
auxiliary shield protects the insulating mate
receive current and heating of the spring is mini
rial from being burned by the intense heat gen
mized. The spring 15 is of su?icient tension to
erated during the welding operation, and espe~
forcibly close the jaws 2—-—'.l upon an interposed
cially when a shortened rod is being used close
welding rod 5 to securely hold the latter in its
to the holder. The guard prevents charring and
adjusted position. The length of the handle lever
disintegration of the-insulating material. Being
Ill and its relation to the pivotal center 3 is such 60 supported on the insulation independently of the
that minimum eifort is required to open the jaws
main body l and clamp jaws, the shield 23 is
against the yielding resistance of the spring to
not electrically charged and will not shock or
release the welding rod.
weld fast upon contact.
To protect the operator against shock and
The insulating sections it and i5 being of
burns, and prevent accidental contact of charged 65 cylindrical form readily retain their positions
parts with the work or other conductor bodies to
about the metallic parts, but to prevent displace
..
which the metallic parts might unintentionally
ment are secured by screws 23 inserted there
become welded, the main frame member I and
jaw are enclosed in an insulating encasement,
through into the main body l. The walls of the
insulating casing are relatively thin. However
which preferably, but not necessarily, comprises 70
separable sections. As illustrated, a cylindrical
tubular section it‘ surrounds the rear portion or
the frame member 5 together with the terminal 2’
and coupling ii and a contiguous portion of the
electrical cable it. This sleeve ‘l8 of insulation 7
such screws are countersunk therein.
To pre
ventaccidental contact with the heads of such
screws, and shock to the operator or grounding
of the implement, ‘a contractively tensioned split
sleeve 25 of insulating material is slidably mount
ed upon the insulating sections !8 and I9 and
5
2,411,980
may be shifted to and fro into and out of over
lying relation with the screw heads where it is
retained by friction.
6
fording a ventilating space, a complementary
spring in?uenced clamp jaw pivoted to said mem
ber, an insulating block secured to the pivoted
clamp jaw, an operating lever secured to the in
as shown in Fig. 2 without a hand guard or shield, 5 sulating block for retracting the pivoted jaw
but readily accommodates itself to the addition of
against the in?uence of its spring influence, a
such guard, which may be interposed between the
tubular sleeve of insulating material enclosing the
adjacent ends of the insulating sections I8 and
assembly of the elongated member the clamp jaws
[9 by retracting the former. Such guard may
and cable connection, affording a handle there
' The section encasement l8 and I9 may be used
comprise a simple disc or collar 26 of insulating 10 for, open at its end and one side to afford access
material or of metal with a bushing of insulat
to the jaws for insertion of a welding rod and
ing material which may be adjusted to position
surrounding the main body I and abutting the
end of the insulating section 19, after which the
enclosing the jaws at the opposite side thereof
to protect the rear end of the welding rod against
contact with extraneous objects.
insulating section [8 is advanced into thrust en 15
3. An electrode holder, including an elongated
gagement therewith to clamp the guard between
member, an integral clamp jaw at one end there
the adjacent ends of the insulating sections. In
of, a coupling for an electric cable at the oppo
lieu of such collar the guard may be slotted .to
site end thereof, the member being slotted inter
enable it to be inserted transversely of the mem
mediate the clamp jaw and cable coupling, a
her I into position intermediate the ends of the 20 complementary clamp jaw pivoted thereto, an
sections [8 and [9. In Fig. 1 the guard 26' is
actuating spring for the pivoted clamp jaw posi
shown as of L shape, comprising a sheet metal
tioned within the slot of the main member, with
extension attached to the primary collar or bush~
one end engaging with said member, an insulator
ing of insulating material 26. This guard is re
attached to the pivoted jaw with which the other
movable or replaceable at Will, and serves to pro 25 end of the spring is engaged, and an actuating
tect the operator’s hands and clothing from
lever for the pivoted jaw attached to the insu
sparks and metal particles which may fly from
lator.
the point of welding operation.
4. An electrode holder, including a pair of in
From the above'description it will be appar
.terpivoted clamp jaws, a support therefor, a cou
ent that there is thus provided a device of the : pling for connecting an electric cable with the
support, a housing of insulating material enclos-'
character described possessing the particular
ing the‘ said assembly, having a cutaway portion
features of advantage before enumerated as de
sirable, but which obviously is susceptible of modi
affording access to one side only of the clamp
?cation in its form, proportions, detail con
jaws for reception of a welding rod, and a pcr~
tion of the insulating material housing at the
struction and arrangement of parts without de
opposite side of the jaws affording a limiting
parting from the principle involved or sacri?cing
any of its advantages.
stop for one end of the welding rod, protecting
While in order to comply with the statute the
the latter against accidental contact with an ex
invention has been described in language more
traneous object.
5. An electrode holder, including a pair of
or less specific as to structural features, it is to be
understood that the invention is not limited to
clamp jaws, a support therefor, a coupling head
for an electric cable, a cylindrical tubular insu
the speci?c features shown, but that the means
lating housing enclosing the assembly having a
and construction herein disclosed comprise the
cutaway portion affording access to one side of
preferred form of several modes of putting the
invention into effect, and the invention is there 45 the clamp jaws, the other side of the clamp jaws
being enclosed within the housing, and air ‘pas
fore claimed in any of its forms or modi?cations
within the legitimate and valid scope of the ap
sages intermediate said assembly and the wall of
pended claims.
the tubular housing for circulation of atmos
pheric air to dissipate generated heat, the insu
‘ Having thus described my invention, I claim:
lating housing having ventilating openings
1. An electrode holder, including an elongated
therein communicating with the air passages.
member, an integral clamp jaw at one end of
6. An electrode holder wherein an electric
said member, a connection for an electric power
welding rod is detachably engageable with a piv
cable at the other end of the member, the mem
oted jaw gripping device including an insulating
her being longitudinally slotted intermediate the
clamp jaw and the cable connection, a comple 55 member forming a stop for the rear end of a
welding rod engaged by the pivoted jaw of the
mentary clamp jaw pivoted thereto in cooperating
gripping device and preventing electrical contact
relation with the clamp jaw portion of said mem
ber, an insulating block attached to and movable
of the rear end of the rod with extraneous objects
the construction and arrangement being such
with the pivoted clamp jaw, an operating lever
that the welding rod is engageable with the piv
attached to the insulating block and insulated
oted jaw gripping device independently of the in
from the pivoted clamp jaw, a spring member lo
sulating material in universally adjustable rela
cated within the slot of ‘the elongated member
and attached thereto at one end and engaged
tion to the gripping device.
7. A tube of insulating material to receive elec
with the insulating block at its opposite end, and
tric welding rod engaging devices and an electric
a tubular sleeve of insulating material enclosing
said elongated member and pivoted clamp jaw
cable connection therefor, open at an end and
having a cutaway portion through which the in
cut out at one side to enable insertion of a weld
sulating block extends and affording access to
ing rod into the rod engaging devices, including a
portion overlapping the rod engaging devices at
the clamp jaws.
2. An electrode holder, including a relatively 70 the side opposite said cutout to protect the in
straight elongated member, a stationary gripper
serted end of a welding rod against electrical con
jaw at one end thereof, a detachable electric cable
tact with extraneous objects.
8. An electrode holder wherein a welding rod
connection at the opposite end, an opening in the
is detachably engageable with a rod gripping de
member intermediate the jaw and cable connec
tion, reducing the weight of the member and af~ 75 vice with which an electric cable is also engage
2,411,980
7
able, including a housing of insulating-material
enclosing the rod gripping device ‘and/a cable con
nection, having an access opening through which
a welding rod is engageable with the device and
an insulating portion of said housing extending
into overlapping relatiOn with the rear end of a
welding rod when engaged therewith, to ‘limit the
extent to which the rod may be inserted relative
to the gripping device and protecting the rear
end of the rod against electrical contact with ex
traneous objects.
9. An electrode holder wherein a welding rod is
detachably engageable with a rod gripping device
of the interpivoted jaw type to which an electric
cable is also engageable, including a tubular -
8
14.‘ An electrode holder wherein a welding rod
is releasably engageable with a gripper unit to
which an electric cable is detachably connected,
including a cylindrical tubular housing of insu
lating material enclosing the unit and having a
cutaway portion a?ording access to the unit for
engagement of a welding rod therewith, and a
limiting stop portion‘at the side of the unit oppo
site such cutaway portion overlapping and pro
tecting one end of the engaged welding rod.
15. An electrode holder wherein a welding rod
is releasabiy engageable with e, gripper unit to
which an electric cable is detachably connected,
including a cylindrical tubular housing of insu
lating material enclosing the unit and having a
cylindrical insulating housing therefor of sub
cutaway portion affording access, to oneside of
stantially uniform diameter throughout, com
the unit for engagement of a welding rod there
prising an uninterrupted portion thereof sur
with, and air passageways intermediate the unit
rounding and enclosing the point of engagement
and the housing for circulation of air for dissi
of the electrical cable with the rod gripping de 20 pating generated heat.
>
vice and forming a handle grip therefor, and a
16. An electrode holder wherein a welding ,rpdv
terminal portion thereof common to the interpiv
is releasably engagcable with a gripper unit to
oted jaws of the gripping device in partially sur
which an electric cable is detachably connected,
rounded relation therewith slotted only at one
including a cylindrical tubular-housing of insu
side to afford access to the gripping device and 25 lating material enclosing'the unit and having a
limit the rearward extension of the welding rod.
cutaway portion affording ‘access to the unit ‘for
10. An electrode holder, including a pair of in
engagement of a welding rod therewith, and ‘a
terpivoted clamp jaws of polygonal cross section,
limiting stop at the side of the unit opposite such
a cylindrical tubular housing of insulating mate
cutaway portion overlying and protecting one
rial common to both the jaws and of substantially
end of an engaged welding rod, said tubular
uniform diameter throughout enclosing the jaws
housing comprising separable sections arranged
in relatively spaced relation a portion of which is
end to end, and a guard member interposed be
cut away to aiford access to the jaws at one side
only thereof, and intervening air passages within
the housing and about the jaws intermediate the
polygonal'faces of the jaws and the cylindrical
vwall of the housing for dissipating ‘generated
tween the sections.
-
g
,
17. An electrode holder, wherein a welding red
is detachably gripped between a pair of relatively
adjustable jaws, to which an electric cable is con
nected, including an insulating housing enclosing
heat.
the jaws at one side thereof to a?ord a stop for
11. An electrode holder, including an elongated
an end of the welding rod, to protect it from con
member, a stationary clamp jaw at one end there 40 tact with extraneous objects, the housing being
of, a cable coupling for an electric power cable at
shaped to expose the opposite side and the ends
the opposite end, the member having therein an
of the jaws for insertion of the welding rod
elongated transverse slot intermediate the sta
therebetween.
tionary clamp jaw and the cable coupling form
18. An electrode holder, wherein a weldingrod
ing a vertical air passage therethrough, a spring
is detachably engageable between a pair of rela
actuated clamp jaw pivoted to said member, an
tively adjustable jaws to which an electric cable
actuating spring located within said slot of the
is connected, including a housing of insulating
elongated member and exerting yielding pres
material enclosing the assembly of jaws and cable
sure upon the movable jaw, an operating lever for
connection, comprising relatively adjustable sec
the movable jaw, an insulating housing enclos
tions, a portion of which ‘forms a handle grip,
ing the assembly, and air passages within the
and an L shaped guard member having an open
housing communicating with said slot of the elon
ing in one arm thereof, ‘through which the jaw
gated member.
and cable connection may be extended with said
12. An electrode holder, including a main
arm of the ‘guard positioned intermediate suc
member, an integral clamp jaw at one end there 55 ceeding sections of the insulating housing and
of, .a detachable coupling for anelectric cable at
held in adjusted position thereby, ‘and with ‘the
the other end of the member, a spring actuated
other arm of the guard extending in overlapping
complementary clamp jaw pivoted to said mem
parallel spaced relation with the handle grippore
her, a housing of insulating material enclosing
tionof the housing.
said member and clamp jaws, having a cutaway 60
19. An electrode holder, wherein a welding rod
portion affording access to one side only of the
is engageable with a rod gripping device with
clamp jaws, a portion of said housing at the op
which an electric cable is also detachably_engage
posite side of the jaws aifording a ‘limiting stop
able, including an insulating housing enclosing
for the end of a welding rod engaged bythe jaws.
the rod gripping device having an opening for
13. An electrode holder, including an elongated 65 insertion of a welding rod-into said gripping de
main member, a, stationary clamp jaw formed at
vice, and a guard member attached in spaced‘re
one end thereof, a detachable coupling for an
lation to the exterior of the insulating vhousing
electric cable at the opposite end thereof, said
adjacent. the said opening, and an air space
member having an opening therein intermediate
formed intermediate the guard and the insulating
the stationary jaw and the cable coupling, a
housing, protecting the material. of the latter
spring actuated complementary clamp jaw piv
oted to the member, an insulating housing en
closing the said assembly and an air passage lead
ing through the housing from atmosphere to the
opening and thence through said opening.
from the in?uence of heat atthepointof welding
operation.
,
20. An electrode holder, including an elongated
member, an integralclarnp jaw atone endjhere
of, a connectionfor an electric cable atethe oppo
2,411,980
10
site end thereof, a longitudinal slot therein inter
mediate the jaw and cable connection, a comple
mentary clamp jaw pivoted to said member, an
operating lever therefor insulated from the piv
oted jaw, a housing of insulating material enclos
ing said assembly, having an access opening for
mosphere for circulation of air therethrough to
dissipate heat, a hand guard associated with said
housing and extending laterally thereof, and a
guard relatively spaced from said housing form
insertion of a welding rod between said jaws, air
the point of welding operation.
passages Within said housing connecting the 1on
gitudinal slot in said elongated member with at
ing an air passage therebetween to protect a por
tion of the housing against the effect of heat at
CLARENCE RINGWALD.
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