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Патент USA US2132127

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Get 4, 193.
F. POLZER
2,132,127
CONVERTIBLE STAPLING IMPLEMENT
Filed May 23, 1936
2 Sheets-Sheet 1
INVENTOR
ATTORNEY
x
0st, 4, 1938.
F. POLZER
2,132,127
CONVERTIBLE STAPLING IMPLEMENT
Filed May 25, 1936
W//
/// / //
2 Sheets-Sheet 2
"
INVETOR
ATTORNEY
“
_
0
Patented Oct. 4, 1938
2,132,127
'UNITED STATES PATENT OFFIQE‘
2,132,127
CONVERTIBLE STAPLING IDIPLEMENT
Fridolin Polzer, Norwalk, Conn., assignor to The
E. H. Hotchkiss Company, Norwalk, Conn., a
corporation of Connecticut -
‘Application May 23, 1936, Serial No. 81,389
19 Claims.
(01. 1—3)
..
This invention relates to portable implements pling head so that the momentum of the swingin
for setting staples into work to be fastened base shall not cause it to be ?ung into contact
thereby, and particularly concerns implements with the wrist of the user whose hand is grasp
for this purpose which may readily be converted ing the stapling head.
5 from a form that is suited to driving staples
Another object is to provide a self-acting
through materials and clinching them, toa form latch adapted positively to hold the base and
suited for use as a staple tacking or nailing im- vstapling head in predetermined oppositely eX~
plement.
'
tending relationship with suflicient rigidity to
In paper fastening staplers designed for use make the base usable as a handle forv supporting
10 on a desk‘or table top it is common to provide and maneuvering the stapling head. Preferably 10
a base supporting a staple clinching anvil and this latch is made readily releasable for con
to provide a superimposed ‘staple feeding and veniently restoring the base and stapling head
driving head including an arm-like portion corn- to folded relationship.
prising a staple storing and feeding magazine.
A further object is to provide such fastening
15 Such arm-like portion of the stapling head is means and latch in forms which shall in no way 15
pivotally connected to the base so that the head interfere with the usual operating parts of a
may have a swinging movement to different staple feeding and driving head, nor make more
heights above the base carried anvil. For ad- di?'icult the reloading‘ of the same with a fresh
mitting sheets to be fastened together, the head
20 is normally poised in a position slightly spaced
above the base carried anvil.
_
One object of the present improvements is to
provide in an implement having some or all
of the characteristics described, a stapling head
25 and base which upon suitable occasion may be
supply of staples.
.
A related object is so to incorporate the fas- 20
tening and locking means within the structure
of the implement that the mechanical parts com
prising such means 'will be inconspicuous or in~
visible to the eyes of theuser when the imple
ment stands in ordinary position upon a desk or 25
swung widely open from a folded relationship
table top.
to oppositely extending relationship and automatically and positively locked therein, so that‘
A still further object is to locate as many as
possible of the parts of the fastening means
the base becomes usable as a handle for sup30 porting and maneuvering the stapling head to
'place it in desired position against any body ‘or
work into which a staple is to be driven.
Another object is to provide an improved fastening means for yieldingly maintaining the
35 stapling head within a range of positions of
and of the locking‘means at a common point
upon the base and to make use of a common 30
part or parts in the construction of both the fas
toning means and the locking means whereby
the number of parts required is minimized and
the manufacture thereof made simpler and less
costly.
35
varying elevation above the base carried anvil,
this range of positions comprising the ordinary
folded relationship of the stapling head to the
These and other objects will become clear from
the following description in which reference is
had to the accompanying drawings. In the
base.
drawings:
The fastening means is‘ preferably of
40. such nature that it exerts sufficient cling to
support the weight of the base when the implement is bodily lifted by means of its stapling
head in the ordinary action of moving it about
in its use upon a desk or table top.
4-5
Another object is to provide sufficient yield
in the holding construction of the fastening
means referred to so that an abnormally abrupt
yanking of the stapling head upwardly shall
suffice to release the fastening means and dis-
50; place the head from its folded relationship to
the base in consequence of the weight or inertia
0f the latter.
"
'
Another object is to provide means positively
to limit the resulting angle of swing" of the base
.537; in its separating movement relative to the sta-
'
Fig. l is a plan view of a stapling implement 40
embodying the present improvements...
Fig. 2 is a side elevation of the implement in
which the broken lines indicate relatively ele
vated and depressed positions of the stapling
head, and the dot-dash lines represent a user’s ‘45
hand grasping the'implement in a natural man
nor for lifting it from a table surface.
Fig. 3 is an endwise view looking from the right
at Fig. 2.
>
Fig. 4 is drawn on a much reduced scale and 50
shows the implement lifted by the hand of the
user and its base swung to an open or oppo
sitely extending position in relation to the sta
pling head.
'
Fig. 5 is drawn on the same scale as Fig. 4 55
2,132,127v
2
and shows the stapling head applied directly
against the top surface of a body into which
staples are to be driven. One hand of the user
is represented as grasping the base of the im
plement for use as a handle.
Fig. 6 is a much enlarged view of the pivotally
connected ends of the base and stapling head
taken in central lengthwise section on the plane
6-6 in Fig. 1,. looking in the direction of the
10 arrows.
Broken lines represent a different posi
tion of the stapling head in partially spread rela
tionship to the base. The position of the staple
feeding parts differs from that in Fig. 1 by show
ing the staple storing magazine freshlyloaded
15 with a full supply of staples.
>
With particular reference to Figs. 6 to 10 in
clusive, the bed of the channeled bar 2| together
with the underlying casing wall 22 are pierced
to form a hole having a deep counterbore 23 open
ing upwardly through the floor of bar 2| in which
hole is slidably carried the fastener plunger or
plug 24. This plunger has a head 25 of larger
diameter than its shank and of such thickness
that when the top of head 25 is flush with the
?oor of bar 2|, suitable space exists between ll)
head 25 and the bottom of counterbore 23 to
serve a purpose hereinafter explained. Plunger
24 is yieldingly restrained from rising above the
floor of bar 2| by the leaf spring 26 normally
maintained flat against the floor of bar 2| by 15
Fig. '7 is drawn on the same scale as Fig. 6 ‘ a holding screw 21 having threaded engagement
and shows the pivotally connected ends of the with the bed of bar 2| and a portion of the under
wall 22 of the stapling head casing.
base and stapling head interlocked in their oppo
sitely extending relationship.
‘
base H is hollow and carries on its upper surface
plane 8—8 in Fig. 6 looking in the direction of
and in position to register with plunger 24, a
spring clip or socket-like device having resiliently
biased elements in part de?ning the mouth there-,
the
arrows.
.
I
~
Fig. 9 is a bottom plan view of'a portion of
the structure shown in Figs, 6 and '7 looking up
wardly at the parts as positioned in the latter
?gure, the retaining nut for the latch spring
being partly broken away more fully to expose
the spring;
Fig. 10 is a still further enlarged view of the '
spring fastener cup shown partly in section as
the cup appears looking downwardly from the
planes ||l—|0 in'Fig. 8.
may be given to the right end of the base in Fig. 2
r to guard against accidental pinching of the user’s
hands or clothing in the relative swinging move—
ment of the stapling head and base.
of herein illustrated as the spring fastener cup
28.
This cup is secured in place on the base by, -
the head of ascrew 29 whose shank penetrates a
closely ?tting aperture inrthe bottomof the cup
and has threaded engagement with a hole through
the top wall of the base, projecting considerably
therebelow to serve as constraining guide for cer 30
tain additional locking parts next to be described. .
The cooperative formations which are given re
'
.Fig. 11 shows a modification’ of shape which
'
l0 designates the stapling head as a whole in
45
As most clearly shown in Figs. 6 and 8, the‘
Fig. 8 is a View taken in cross section on the
cludingits horizontally extending arm' portion
pivotally connected to the base II‘ by the hinge
screw l2. The staple ‘driving and automatic
staple feeding mechanism is, in large part, con
cealed within the casing of the stapling head if!
and may be operated by the depressible hammer
top l3. A staple expelling ori?ce (not shown)
spectively to the bottom end of plunger 24 and
to the receiving rimof cup 28 are most clearly
shown in Fig. 6rwhere these parts are shown en
gaged, while Fig. 10 shows inenlarged detail the
nature of suitable slots 44 with which the rim
and upright wall of the cup may be provided to
permit resiliently opposed spreading of the rim
lips of the cup for admitting the plunger to the .30:
interior of the cup and thereafter yieldingly re
sisting its withdrawal therefrom.
The right end of base || contains an aperture
'30 Fig. 9 ?anked by, vertical walls. The lateral
walls 3| and 32 are substantially beneath the lugs
gives outlet to one staple at a time at a point in
33 and 34 respectively which project above the
the stapling head just above the base carried
anvil M at each downward stroke of thehammer
base H to support the hinge screw I2 and to
guide the end of the stapling head which is piv
l3, the anvil serving in a well ‘known way to
50 clinch the entering ends of the staple after they
have pierced the material to be fastened.
The horizontal arm portion of stapling head 1!]
contains a magazine chamber for storing staples
and provides a track upon which the staples may
be advanced toward the left in Fig. .6 by the;con-,
stant tension in a coiled bandspring |5 whose
knob-‘like terminal l6 removably-engages a stem
|'| upstanding from the. push slide la'which' in
cross section is of U-shape to accord with the in
60 verted U-shaped staples l9 andwhichrides on the
same tracks 2|] therewith.
,
' The tracksv 29 are provided by a channeled
bar 2| which is made fast to the long,_ narrow
underwall 22 of the stapling head casing in any
suitable way, as-by‘rivcts or spot welding, not
shown, while the channel in bar 2| is availed of
to contain and render inconspicuous certain parts
which I have provided to comprise a novelly con~
structed and novelly functioning fastening means
operative between therstapling head and the base.
For fuller details of the main parts'of the imple
ment, which have been brie?y described, refer-v
. ence may be had to my co-pending application,
_ Serial No. 22,130, ?led May 18, 1935,: nowPatent
~' Number‘2,11'7,743, granted May '17; 1938.‘
oted therebetween.
45
A flat sided recess is there
by formed into which the extreme right end of
the stapling head may swing as indicated by 50
broken lines in Fig. 6. The third wall 35 is in
transverse relation to the base and closes the left
end of aperture 30 being continuous with walls
3| and 32.
»
Against the bottomsurface of the top wall of 55
the base, a latch 36.is constrained-to slide and
has a downwardly turned ear 3'! for manipulating
it. Latch 36 also has an elongated slot’ 38 en
gaged by the cup retaining screw 29 and its right
extremity projectsthrough a slot 39 in wall 35
and into the recess of aperture 30 of the base.
As clearly shown in Figs. 6 and 9, slot 38 is also
engaged at its right end by the free terminal of a
Wire spring 40, several turns of which are coiled
about the cup holding screw 29 and retained there 65
upon by the nut 4| which has threaded engage
ment with screw 29 and may be secured there
on by peaning over the end of the screw or in any
suitable way. The formation given to spring 40
between its mounting screw, 29 and its point of 70
engagement with the end of slot 38 constantly
urges latch 36 toward the right in Figs. 6, '7 and 9
to an extent limited by the engagement of the
leftrend of slot 38 with screw 29. The coiled
body of spring 40 also helps to maintain latch 36 76
"
3
2,132,127
in slidable contact with the upper wall of the base
throughout the length of the latch. As will ap
pear hereinafter, the right end of latch 36 may
be somewhat chamfered to facilitate its co-ac
tion with the corner 42 of ‘the stapling head ex
tremity when these portions of the structure come
in contact as indicated by‘broken lines in Fig. 6.
Fig. 11 shows modi?ed shape which may be
given to the lugs 33’ and 34' at the hinge end
10 of the base to preclude the possibility of any part
of a person’s hand or clothing being caught or
pinched by the shear-like action of the extremi
ties of the base and stapling head which project
to the right of the hinge screw I _2 in Fig. 2.
The operation of my improved stapler is as
15
follows. In the folded relationship of the stapling
head it and the base H, the stapling head is
normally poised in its position shown by full
lines in Figs. 2 and 6. In this position the weight
20 of the stapling head at the left’ of the hinge screw
i2 is supported by the slidable plunger 24 whose
head 25 is prevented from projecting above the
counterbore 23 by the resilient strength of the
leaf spring 26 so that it may be said that the
25 weight of the stapling head is borne by the flex
gages and forces toward the left, the right ex
tremity of latch 36 against the tension in spring
40. When the fully spread relationship shown in
Figs. 4 and '7 is attained, latch 36 quickly snaps
toward the right in Figs. 6, '7 and 9 thus imprison
ing the end of bar 2| against withdrawal from its
position shown in Fig. 7. Such latch acts to pre
vent'rebound of the base structure following its
abutting impactagainst the head structure in
the position of‘ parts shown in Fig; '7 wherein the
base structure has ‘been abruptly ?ung from its
detent held folded relationship to the base, as
in Fig. 2, to a position oppositely extending there
from, as in Fig. 4. This prevents possible harm
to the hand of the user or damage to any surface 16
or object on a desk from which the implement has
been abruptly lifted. Without such latch or
equivalent positive catch means, the base struc
ture would be left free to dangle and swing about
its pivotal connection to the head’ structure vio 20
lently and without control when the latter is
yanked upwardly. In this locked and oppositely
extending relationship of the stapling head and
base, the base extends in approximate alignment
with the staple magazine or arm portion of the
ural resistance of this spring. Papers which are
to be fastened together may be inserted between
the stapling head and the anvil M which are kept
suitably separated for this purpose by the before
mentioned parts. When the vhammer top 53 is
forced downwardly to drive a staple, the stapling
head and is well adapted to serve as a handle
head will swing downwardly against the sheets
per, for example,‘~may thereby be fastened.
When it is desired to release the base and sta
pling head from their oppositely extending rela~
of paper and overcome the resistance of spring
25 which will thereby be caused to yield to‘ its
broken line position'i'n Fig. 6 thus permitting the
plunger head 25 to project temporarily above the
floor of the channeled bar 2|.
This position of
the stapling head is indicated by broken lines It!"
in Fig. 2.
v
y
-
If the thickness of the papers or work to be
inserted between stapling head It and the base
anvil ll! exceeds the normal space therebetween
shown in full lines in Fig. 2, the stapling head
may be manually lifted to its position rep-resent
45 ed by broken lines Ill". ‘This will be freely per
40
mitted without lifting plunger 24 out of the spring
fastener cup 28 because of the lost motion or play
between the plunger head 25 and-the bottom of
counterbore 23.
Thus the engagement of plunger 24 with cup 23
50
maintains a folded relationship of the stapling
head If} and base i I in which relationship the
stapling head may perform its work of feeding
and driving staples in any position within a
which maybe grasped by’ the hand of the user as
represented in Fig. 5 for maneuvering and plac
ing the stapling head in position to tack or nail a
staple into the body of any desired object such as
the table top 43 to which a sheet of drawing pa
tionship shown in Figs. 4, 5 and 7, the latch 35 is _
conveniently pulled toward the left by its down
turned ear 3‘! most clearly ‘shown in Fig. 6, after
which and when restored to folded relationship,
the plunger 24 will. re-enter the spring fastener
cup 28 owing to the force of leaf spring 2% exert~
ing enough. pressure‘ against the plunger head 25
to force-the split rim of cup 28 to expand circum
ferentially and admit the bottom end of the
plunger to the interior of the cup. However, the
grasp of the cup 28 upon the plunger exerts
enough cling to cause the base to be lifted when
the ‘stapling head is lifted in an ordinary manner
as for picking up the implement and otherwise
handling it as a portable device for desk use.
While, within the scope of my invention, the 50
fastening means for holding the base and head in
folded relationship, and the locking means for
holding these same parts in oppositely extending
43, the base will consequently swing very abrupt
relationship, may assume various and sundry
forms which will be-suggested to workers in the
art by‘the disclosure hereof, it will be appreciated
that the particular forms which I have chosen to
illustrate involve very few parts additional to
those commonly found in a stapler not equipped
with my present improvements. Also I have in
corporated the parts within the structure of a
conventional stapler in such manner that they
are relatively large and strong and free from the
requirement of extreme accuracy of dimension
ly to a wide open or oppositely extending rela
tionship as shown in Fig. 4, andv if stops were not
in their cooperative relationship. The parts here- 6
by newly provided are for the most part concealed
provided to prevent it, the base might continue
from the view of the user‘ and utilize heretofore
unused space within the hollows of the base and
. range whose bottom position is that designated as
ill’ and whose top position is that designated as
It” in Fig. 2.
The resistance of the spring fastener cup 28
to the withdrawal of plunger 24 therefrom is
preferably such that an excessively abrupt, up
60
ward yank of the stapling head by the hand of the
user shown in Fig. 2 will suffice to separate the
plunger from the cup. If lifted clear of the table
to swing far enough to strike the wrist or arm
of the user. This is prevented, however, as is
most clearly shown in Fig. '7, when the extreme
end of the channeled bar 2i swings into abutting
contact with the base wall 35. To reach this
position the end of bar 2i in swinging from its
unbroken line position in Fig. 6 to its full line
position in Fig. 7 about the hinge screw i2, en
staple magazine.
'
Since I believe‘it to be broadly new to inter
connect the stapling head and base parts of an
implement of the kind described in the general
manner and for the purposes which have been
explained, I do not limit the claimsfor my inven-'
tion to the particular constructions and arrange 75
2,132,127
ments herein disclosed but intend the language
of the following claims to include all fair equiv
alents of the constructions described and illus
trated herein and all substitutes for and depar-'
tures from the disclosure hereof which would be
suggested thereby to others skilled in the art.
I
claim:
'
I
-
1. In a stapling implement, the combination
with an anvil base structure and a superimposed
10 stapling head structure pivotally connected to
and overhanging said base structure, of means
yieldingly to maintain the head structure poised
in a de?nite position spaced above the base struc
ture embodying a resilient device de?ning a
15. socket entrance and carried by one of said struc
tures and a cooperatively formed plunger carried
by and in movable relation to the other of said
structures andprojecting, therefrom in a man
ner to support the weight of the head structure,
20; positive means to limit the movement of said
plunger in one direction relative to the structure
which carries it, and resilient means constructed
and arranged to oppose movement of said plunger
in the opposite direction relative'to the structure
25. which carries it, with a resistive force greater
than the force with which said plunger is biased‘
I downwardly by the Weight of said headstructure'.
2. In a stapling implement, the combination
with an anvil base structure‘and a superimposed
stapling head structure pivotally connected to and
overhanging said base structure, of means to
maintain the head structure resiliently poised in
a position de?nitely spacedrabove the base struc
ture embodying a plunger slidably mounted in
- the head structure and projecting therebelow to
bination with a stapling head structure and an
anvil base structure pivotally connected thereto
in a manner to be ?ung abruptly from a folded
relationship to an oppositely extending relation
ship to said head structure, of a set of inter
engageable detent devices carried in part by each
of said structures and, adapted to perform a
quick releasing action, said devices cooperating
when engaged to hold said base structure in
folded relation to said head structure with suffi
cient cling to enable both structures to be gentl'y
lifted in unison by use of the head structure as
a handle but with insufficient cling to maintain
said structures in folded relationship when the
headstructure is yanked upwardly with intended 15
abruptness, abutting means carried in part by
each of said structures and disposed to arrest
swinging movement of the base structure when
it has reached approximately an oppositely ex
tending relationship to the head structure, and a
manually retractable spring urged latch con
structed and arranged automatically to lock and
positively retain said base structure in its said
oppositely extending relationship to the head
structure when said abutting means arrive in 25.
contact at the end of the abrupt swinging move
ment of the base structure relative to the head
structure.
6. In a stapling implement, the combination
with‘ an anvil base structure and a longitudinally 30,.
superimposed stapling head structure pivotally
connected to said'base structure, of means to
hold said head structure poised above the base‘
structure and'to resist the swinging separation
of said structures including a catch carried by
contact with the base structure in a manner to the base structure and a projecting member car
support said head structure in its said poised ried by the head structure and swingable there
position, and a spring constructed and arranged with in a path of movement to engage with said
to urge said plunger to project a predetermined catch, the said member being mounted to have
a lost motion relative to said head structure in the 40
40 extent below the head structure when the latter
is supported in its said poised position and to be direction of the said path of movement.
7. In a stapling implement, the combination
yieldable to permit on occasion manually forced
with an anvil base structure and a superimposed
downward movement of the head' structure to
ward the base structure from said poised position. stapling head structure pivotally connected to and
3. In a stapling implement, the combination ' overhanging the base structure, of means yield
45
ingly to resist the swinging separation of said
with an anvil base structure and a superimposed
stapling head structure pivotally connected to
and overhanging said base structure, of means
normally to con?ne the head structure to a de?
50 nite range of separating movement relative to
the base structure embodying a plunger mounted
in movable relation’ to the head structure in a
manner to have lost motion transverse said head
structure in a downward direction toward the
structures embodying a socket-like device carried
by one of said structures and having an entrance
mouth, a resiliently biased lip in part de?ning
said mouth of the device, and a cooperatively 50
formed plug carried by the other structure in
position to enter said mouth and to engage with
and be yieldingly retained by said lip.
8. ‘In a stapling implement, the combination
ing below the head structure to contact with the
set forth in claim 7 in Which the said plug is 55
loosely mounted on the said other structure in
base structure, and a catch device carried by the
a manner to yield in divers lateral directions for
underlying base structure, said plunger ‘project
base structure in position to be engaged by said
plunger and cooperatively formed and arranged
60 to cling to said plunger.
4. In a stapling implement including a hollow
base and a stapling head pivotally connected
thereto,‘mechanism cooperative with said head
for holding the latter in a plurality of positions
65 relative to said base embodying in combination
with a roof wall of the hollow base, a snap fas
tener cup mounted on the base, a screw having
a cup retaining head inside the cup and having a
shank penetrating the roof wall of the base and
70 projecting therebelow, a latch slidably guided by
the projecting shank of said screw below the roof
Wall of the base, and means to constrain said
latch to ade?nite path of sliding movement rela
tive to said shank.
’
5. In a portable stapling implement, the com
centralizing itself with the said mouth of the
socket~like device upon entering and leaving the
same.
9. In a portable stapling implement, the com
bination with a stapling head structure and an
anvil base structure pivotally interconnected to
be ?ung abruptly from a folded relationship to
60
an opened relationship, of a resilient socket de
vice carried by one of said structures and a co
operatively engaging plug carried by the other
structure and adapted to perform a clinging and
quick releasing action respectively to hold said
base structure in folded relation to said head 70
structure when the head structure is used as a
handle for lifting the base structure and to vper
mit the release of said base structure from said
head structure when the headstructure is yanked
upwardly with intended extraordinary abrupt 75
5
72,132,127
ness, abutting means carried inv part by‘ each of
saidstructures and disposed to arrest‘ swinging
movement of the base structure when it has
reached a predetermined open relationship to the
head structure, and a manually retractable spring
urged latch constructed and arranged automati
cally to lock and positively retain said base struc
ture in its said open relationship to the head
structure when the said abutting means arrive in
10 contact at the end of the abrupt opening move
ment of the base structure relative to the head
structure.
,
t
10. In a portable stapling impl'ementincluding
a base structure and a superimposed stapling
15 head structure pivotally interconnected ina man
ner to swing apart for receiving therebetween the
work to be stapled, detent means carried by one
, , l4. Ina stapling‘implement, the combination
set forth in claim 6 in which the said stapling
head structure contains a round hole extending
,therethrough having a counterbore at one end,
and thesaid projectingimember comprises a cy
lindrical bodyrslideably guided lengthwise in said
hole and enlarged at one end to form a head 00
cupying said counterbore and circumferentially
grooved near the other end for effecting holding
'10
engagement of said projecting member with said
, catch,
‘
.
15. In a stapling implement, the combination .15
set forth in, claim '7, inwhich the said structure
which carries the said, plug contains an aperture
of said structures, a cooperative detent member
opening through opposite faces thereof and the
mounted on the other of said structures in a man
said, plug‘comprises a member having a shank
portion slideably guided insaid aperture and a 20
2.0 ner to be movable relative thereto and to project
therefrom in a direction to engage with said
detent means thereby to act as a structure con
necting spacer for holding the head structure at
a normal distance above the base structure, resil
- ient means constructed and arranged to bias said
detent member in a manner to oppose movement
of said head structure nearer to said base struc
ture than its said normal distance therefrom with
su?icient strength to uphold the weight of the
30 head ' structure without yielding thereto, and
means to permit said member to be relieved from
the bias of said resilient means when the head
structure is separated farther than its said nor
mal distance from said base structure.
11. In a portable stapling implement, the com
35
bination with an elongated stapling head struc
ture and an elongated anvil base structure piv
otally interconnected near'their ends to permit
relative swinging of said structures between a
40 folded relationship and an oppositely extending
relationship, of abuttable surfaces rigidly carried
respectively by each of said structures in posi
tions to meet and thereby positively limit relative
movement of said structures in one direction
when said structures are in said oppositely ex
50
body slideably guided lengthwise in said hole and
enlarged ‘at one-end to form a head occupying
said counterboren
circumferentially grooved terminal portion DITQ-v
jecting from one end of said aperture to enter
the said mouth of the socketlike device, together
with means yieldably held on said plug carrying
structure in a position to overlie the other end 25
of said aperture and be engaged by said member.
16. In a stapling implement, the combination
set forth in claim 7, in which the said structure
which carries the said plug contains an aperture
opening through opposite faces thereof and a
counterbore enlarging said aperture at one face
of the said structure, and the said plug comprises
a member having a shank portion slideablyguided
in said aperture, a head portion occupying said
counterbore and a circumferentially grooved por 35
tion projecting from said aperture in a position
to enter the said mouth of the socket-like device,
together with yieldable means secured on the said
plug-carrying structure in a position to overlie
said counterbore and normally con?ne said head
portion of the plug member therewithin.
17. In a stapling implement including an elon
gated stapling head and an elongated underlying
anvil base pivotally connected together for rela
tive swinging movement between-a codirectional
tending relationship, a locking surface rigidly
relationship and an extended relationship, means
carried by one of said structures, and a rigid
for converting said implement by single handed
spring biased latch bolt carried by the other
structure and positively guided for movement
operation from a condition for use to clinch sta
ples to a condition for use to tack staples includ
relative thereto toward and away from a position
ing in combination with said head and base,
detent means constructed and arranged therebe
tween to cause said base and head initially to
to meet with said locking surface and thereby
positively limit movement of said structures in
the opposite relative direction when said struc
tures are in said oppositely extending relationship,
whereby all of said surfaces and said latch bolt
cooperate to condition the base structure for use
cling together in said codirectional relationship
when said head is yanked abruptly upward, and
immediately thereupon suddenly and automati
as a handle positively interlocked with the head
cally to free said base from said head in a man
ner to set up kinetic inertia in said base causing
structure for rigidly supporting and maneuvering
the latter to swing abruptly about its pivotal
the stapling head at a maximum distance from
the hand of the user.
12. In a stapling implement, the combination
set forth in claim 6 in which the said stapling
head structure contains an aperture shaped to
connection to said head and into extended rela
tion to the latter while said head is suspended
from the hand of the operator, abuttable surfaces
carried by said base and head in positions to en~
gage and limit the swinging of said base relative to
60.
form a shoulder intermediate the ends thereof
said head, and catch means constructed and ar
and the said projecting member is shaped to
form a shank portion slideably guided lengthwise
in said aperture and a shoulder engageable with
said shoulder in the aperture thereby to limit
lengthwise movement of said projecting member
ranged positively to resist rebound movement of 65
in one direction.
13. In a stapling implement, the combination
set forth in claim 6 in which the said stapling
head structure contains a round hole there
through having a counterbore at one end, and the
said projecting member comprises a cylindrical
said base relative to said head after the said sur
faces have contacted, thereby to hold said base
positively locked in extended relation to said head
so that the base may thereafter be grasped in a
portion remote from said head and thereby 70
maneuvered for shifting said head to desired
locations against the work to be stapled.
‘
18. A portable stapling implement normally
conditioned for clinching staples against a self
contained anvil and adapted through single 75
6
2,132,127
handed actuation by the operator. to be instanta
19.\ In a stapling implement including a hollow
neously converted to a. condition for tacking’ un
base having a roof wall, a stapling headpivotally
connected to said base and separate detent parts
clinched staples into work, embodying stapling
head and anvil base structures pivotally con-_ ‘carried by said stapling head in a manner; to be
caught and held on respectively different occa- ~
nected for relative swinging movement, self
clinging means carried‘ in part by companion sions in respectively di?erent positions of said
portions of each of said structures constructed stapling head relative to said base, mechanism co
and arranged suddenly and automatically to dis " operative with said detent parts for separately
catching and holding each of said detent parts on
engage responsive to a smart upward yank im
different occasions embodying in combination, a 11'0
v10 parted to said stapling head structure by a single spring clip device mounted on the top of said base
hand of the operator in consequence of the oppos
in a manner to engage with one of said-detent
ing weight ‘of said anvil base, and self-interlock
parts, a screw having a head inside said clip for
ing means including solid abutments carried re
spectively by each of said structures in positions
to engage and positively limit relative swinging of
said structures in one direction resulting from
said upward yank on the stapling head structure
and including a movable rigid member arranged
"20
tobe spring biased in one direction and manually
retractable in the opposite direction constructed
and arranged automatically to prevent swinging
rebound of said structures after said abutments
have engaged.
securing the latter to said roof wall and having a
shank penetrating said wall and projecting there :15
below, and a latch slidably- guided by the pro
jecting shank of said screw in a path of movement
adjacent and parallel to the under surface vof said
roof wall into and out of a position to engage
with the other of said separate detent parts“, and :20
additional means to constrain said latch to: its
said path of movement.
’
7
‘
FRIDOLINv POLZER.
I
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