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Патент USA US2112192

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‘Maréh 22, 1938. '
" J. w. GEDDES
HAND TOOL
Filed June 2, 1956
_ ‘2,112,192
‘ \ Patented
2,112,192
22‘, 1938
FIUNITED STATE s PATENT
OFFICE .
mm w. Geddelpwatertown, Mass., mumm- to
H. K. Porter, Inc.,~ Everett, Mm, acorpora
tion of Massachusetts’
Application June 2, 1936, Serial no. 83,942
4 claim. (CI. ‘81-88)
This invention relates to tools and the object 3, the worm does not project beyond the bound
is to provide a particularly simple and compact ing planes of the body of the tool, thereby permit~
tool having parallel operating working elements _ ting the latter to be used in close quarters.
or jaws capable of engaging work objects of vari
It will be noted that the jaw ll with its base ‘
5 ous sizes with great ?rmness. A major field oi.’ i5 is in. the embodiment shown held against
application is in the construction of a tool for movement in the vertical direction, viewing Fig.
2, solely by its interlocking connection with the
carriage I3, the way H providing the sole guide
- sition but which also may be utilized as a pair is for the carriage and the jaw carried thereby.
service primarily as a wrench actuated to grasp
the work by closure of the hand in grasping po
10 of pliers or, when supported by the hand 'or oth
erwise, for the purposes of a small vise. Advan
tages of my invention will be apparent to those
skilled in the art from the following description
of the illustrative embodiment thereof in a tool
15
‘20
of the type referred to shown by way of example
in the accompanying drawing, wherein:—
Fig. l isa side elevation of the tool partly
broken away;
Fig. 2 is an enlarged view of the head thereof
with a part removed to disclose interior mecha
nism and partly broken away; and
Fig. 3 is a section through the complete tool
on the plane of the line 3-3 of Fig. 2.
Referring to the drawing, and first more par
The possibility of a binding movement is thus 10
minimized.
'
‘
‘
A handle lever 33 is pivoted to the body of the
tool on the pivot pin 35 traversing the chamber‘
formed in the body and projects outwardly in
opposition to the handle 9 so that the two may be 15
manually operated as are the handles of an or
dinary pair pf. pliers. This handle lever is es-*
sentially a bell crank lever having within the
chamber of the body an arm de?ned by the dis
tance between the pivot .35 and the pin 31; which 20
pin is connected by links it to a pin ti on the
ear ti depending from carriage it. The arm
between 35 and ti and the links 39 thus form a
ticularly to Fig. 2, the form of tool shown com
toggle adapted to be operated by swinging move
ment of handle it to move the carriage horizon~=
tally viewing Fig. 2 and thus move the jaws ‘i
jaw ‘i projecting therefrom which is integral or
and il toward or from one another.
unitary therewith. Similarly projecting from the
body portion in a generally opposite direction is
rangement is such that the center of the toggle
31 may move slightly past center before its move
25 prises a. body portion 5 having a ?xed gripping
The ar
a handle 9, the disposition of this handle de -' ment is stopped, as by contact of the links with
the carriage it or by contact of the handles at
pending upon the angle desired between the han
dle or operating portion of the tool and the jaws M (Fig.v 2), as shown by the center line of the
or gripping portion. Between the jaw i and the pivots t5 and ti in Fig. 2. When so moved re
handle 9 the body is recessed and the inner wall action of the work on the jaws cannot force the
thereof is provided with a way M (Fig. 3) in same apart or move'tlie handle levers.
35
When it is desired to grip a piece of work, the
which a carriage i3 is adapted to slide in a di- '
rection generally transverse to the length of the handles may be held loosely and the jaws ad
handle 9. The carriage it has a ?ange id which justed ‘by means of the worm it so that they
enters and interlocks with a groove formed in a just lightly engage with the sides of the work.
base piece is from which projects beyond the ' The handles may then be pressed together. As
40 body portion 5 a gripping jaw it opposing the the toggle straightens, the work will be gripped
?xed jaw l. The base it is formed as a rack, with tremendous force, and when thrown over
center, to the position of Fig. 2, for example, the
as best seen ‘in Fig. 2, and may be adjusted rel
ative to the carriage by means of the worm it jaws will be locked upon the work. The same
journalled in the latter and meshing with the may then be turned and it will be impossible for
45
the jaws to spread and release the work and
rack.
~
‘
-_ The carriage l3 and the jaw base it may’ be~ there will be no strain on the grasping hand. In
held in position by means of a cover plate 2i other words, the clasp of the hand is not relied
upon to maintain the tool in gripping relation to
(Fig. 3) secured by the fastenings it and it adja
the work.‘ In fact, the tool when thus closed on
cent
the
extremities
of
one
side
of
the
body
and
50
fastening 27 at the other side, the cover plate .the work may be entirely released by the hand
and will be in a self-maintaining position. 0n
and the wall on which is formed the way i i form
ing cheeks de?ning between them a chamber the other hand, if the adjustment of the jaws by
within the boundaries of which are received the means of the worm relative to the work is such
that the toggle cannot be thrown past center,
55 carriage iii, the base l5 and the actuating mech
while a tremendously powerful grip may be ex
anism for the carriage hereinafter to be de
scribed. The wall' and the cover plate may be erted by means of thetoggle, a release of the
provided respectively with openings 29 and M grasping pressure of the hand will permit the
providing access of the ?ngers to the worm for jaws to be moved apart freely. This will permit
60 adjusting jaw i1, and preferably, as seen in Fig. the'tool to be‘used in the manner of a ratchet
30
30
35
dill
50
55
2
2,112,192
wrench, for example, grasping ?ats of the nut
in the position shown in Fig. l, and then when
the grasp of the hand is released permitting
the tool to be rotated relatively to the work to
take a new grasp on adjacent ?ats.
The move
ment of the jaws is parallel and insures ?rm
gripping. Operated in the latter manner, the
tool has the utility of a pair of pliers of similar
size with the added advantage of the parallel
10 jaw feature.
'
the face of the jaw, inner and outer relatively
slidable members, the outer of which carries a
jaw opposing the first jaw, at least one of said
members being mounted for sliding ~movement
along the way, means for relatively adjusting
the two members, a toggle having one end pivoted
to the inner member, a handle pivoted to the
body and disposed in opposition to the ?rst
handle to be manually operated therewith in the
manner of pliers or tongs, the inner end of the
To permit use of the tool in the manner last‘
pivoted handle being operatively associated with
described and prevent accidental movement of
the toggle past dead center I may provide an
an arm of the toggle to operate the same, the
adjustable abutment 45, here shown as a head
less set screw mounted in handle 9, which may
be adjusted to serve as a stop for the movable
handle to prevent the toggle from being thrown
over center and prevent the tool from being
locked.
A third method of operation is initially to
20
toggle adapted when straightened to move the
members along the way, the jaws de?ning an
opening between them so related to the handles
as to permit application of the tool to the work
in the manner of pliers or of an end wrench.
2. A parallel motion ,tool- comprising a body
move the toggle over center and then to adjust
the jaw to the work by means of the worm IS,
the tool then serving in the manner of an ordi
having lateral cheeks de?ning a chamber there_
between, an abutment rising from said body, a 20
member received within the chamber, a jaw hav
ing a base slidably engaging said member, means
within the chamber for slidably guiding one of
nary adjustable end-wrench ?tting the work
said parts with said jaw parallel to the opposed
25 without substantial clamping pressure.
In some cases a cumulative action may be
utilized. The powerful pressure of the toggle is
exerted. The toggle is then broken and adjust
ment made by the worm to compensate for the
30 deformation of the work effected by the pres
sure.
A second stroke may then be made, and
so on.
>
In the form of the invention shown the rack
on the base member I5 extends to the left
35 hand extremity of the same, viewing Fig. 2, so
that this member and its jaw Il may be with
drawn to the right by merely unscrewing the
same by means of the worm, thus providing for
the substitution of a similar member having a
40 jaw face of different character.
abutment, means for effecting an adjustment 25
between said base and member to any point be
tween the extremes of adjusting movement, a
toggle received in the chamber beneath said
member and connected to the member at a point
relatively remote from the said jaw, said toggle 30
adapted when straightened to move the member
toward the abutment, the center pivot of the
toggle being movable across the line connecting
its two outer pivots and a handle pivoted to the
body and projecting therefrom having its inner 35
end operatively associated with an arm of the
toggle for operating the same.
3. A tool of the class described comprising a
chambered body portion from which projects a
pair of jaws, handle levers oppositely disposed 40
The fastenings for cover plate 2| at the ex
for manipulation in the manner of pliers or tongs
tremities of the left-hand side of the body of
the tool, viewing Fig. 2, here shown as rivets 23
and 25, may be of permanent character. At
the opposite side between the cheeks in the
path of the carriage I3 I prefer to utilize a
simple through rivet 21 and a spacing collar 28.
The rivet 21 may readily be removed, and on
withdrawal of pivot 35 the entire right-hand
portion of the chamber between the checks is
opened and the internal mechanism may be with
projecting from the body in a direction generally
opposite from that of the jaws whereby the
jaws may be applied to the work in the manner
drawn.
'
As is apparent from Fig. l, the handles of
the tool are unobstructed and easily grasped.
The operating mechanism is housed within the
chamber of the body and there are no project
ing parts which would interfere with the free
and convenient use of the tool under the various
conditions encountered in practice.
I am aware that the invention’ may be em
bodied in other speci?c forms without depart
ing from the spirit or essential attributes there
of, and I therefore desire the present embodi
ment to be considered in all respects as illustra- _
of pliers or an end wrench, one at least of said 45
handle levers being pivoted on‘ the body, a toggle
mechanism housed in the body portion connected
to one of said jaws and operating in a zone
generally transverse to the length of the handles
at the inner ends thereof leaving the distal 50
portions unobstructed, a pivoted handle having
its inner end operatively associated with anarm
of the toggle for operating the same, the toggle
when straightened acting to close the jaws, the
center pivot of the toggle being movable across
a line connecting its two outer pivots whereby
the jaws maybe locked on a piece of work for
acting on the same without continued approxi
.mating stress on the handles, and means for
adjusting one of the jaws toward and from the 60
other independently of the toggle.
.
>
4. A tool of the class described comprising a
body having a jaw, a cooperating jaw slidably
carried in said body, a handle pivoted to the
65 tive and not restrictive; reference being had to
body having an arm rigid therewith, a link on 65
the appended claims rather than to the fore
going description to indicate the scope of the
said arm connected with the sliding jaw, the
arm and link forming a toggle adapted when
straightened to move the sliding jaw toward the
?rst named jaw, the center pivot of the toggle
being movable past the line connecting its two 70
outer pivots, and an optionally positionable stop
for preventing such extreme movement.
JOHN W. GEDDES.
invention.
.
I claim:
1. A tool of the class described comprising a
body having a jaw and a handle projecting there
from in generally opposite directions, a way
formed in the body extending transversely to
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