вход по аккаунту


Патент USA US2110287

код для вставки
March 8, 1938,
. 2,110,287
Filed Sept. 2, 1936
6 Sheets-Sheet 1
FIG. /6'
March 8, 1938. -
Filed ‘Sept. 2, 1936
6 Sheets-Sheet s
F/G.4. - f
77 79
March 8, 1938.
Filed Sept. 2', _l936
~26] 9% 162 6'37'17'0 aids $834 28
. 6 Sheets-Sheet 4
5'9 .
FIG; 7
March 8, 1933-
Filed Sept. 2, 1936
FIG. /3
6 Sheets-Sheet 6
w '
Patented Mar. 8, 1938
James» W. Gli'a'nnell, WestL‘osriAngelés," Calif?
Application-September. 2, ‘1936, Serial .No;..99,'o44
8- claims; (01.1 140-1-419‘) >
This inventiomrelates»to-wire:twistingappa-
furtherrtwisted. After apredetermined number’
ratus, and» particularly; to" means-.- for splicing.
electrical conductors, such; for example, as the
of - twistshave been-Yput in‘ the pairs- of-wires a'
latch‘ on ?nger engages the‘ twisted portion of -
wires of telephone‘ cable, and ‘is‘an improvement-
the wires midway between-the twisting heads
5,, in .thesplicing machine which-forms;v the subject ' and‘ the 4 stripping mechanism, thus preventing-v
of my'Patent No.‘ 1;813,562:issued:-July 7,- 1931.
A feature. of this inventionis the. provision
of a machine ofthis character which-will/simultaneously make a pair of joints which arestag10: gered'. on straight or multiplesplices-andwhich
will position a single insulating sleeve-over these
joints by only'one' actuation of. the operating
handle‘ of the machine.
Such an arrangement
not only effects a. saving-in. sleeves, but materially
15 reduces the overall: size of thejoint in. the cable
itself, whichislof: great importance,v especiallyv
where the cable is located-Vin conduits.
the'wires- beyond thelatch; or ?nger from being‘
twisted any-further; I-I'ov‘vever,v the twisting heads
continue to rotate thereby: twisting o? the wires‘;
at=the~ point where they‘ are-held vin the twisting
heads. The spliced-ywireslthenileave the twiste 101
ing mechanism, and theinsulating'sleeve- which
hasbeenpreviously- placed» on the wire‘ and in
the sleeve slipping‘ mechanism,v is- slipped-r over
the pair‘of joints and thej'wires are-thenl-ejected
from the- machine asthe- lever returns ‘to its; 15'
normal position.
In the drawings:
Another feature is theprovision- ofv twisting
Fig. ll-is a-perspective-view of the wire- splicing
means which-twill accommodate various sizes
machine innthe position which it would occupy
g0. ofwire.
during the splicing.v of-‘a lead covered cable;
A further feature.
the provision: of means
for. controlling the pitch- of ..the twisted- joints-
More speci?cally. in themachine-of this invené
tion‘ the ends of the wires» to be joined-normally.
v 20.
Fig. 2‘is-a/top-plan- view with the-cover re
moved, the operating parts in their normalposi
tion-and theqwires to be joined in their respective
positions; .
25 extend in opposite directions and- arelooselyl
held in "position- ‘by a- projection on each end- ofv
the splicing machine’.- Over theends of the pair’
of. wires tol-ythe right ofv the machine. is positioned a cottonsleeve which will later be slipped‘
Fig:~3- is‘an; end-_ view-r01" Fig. 2‘ partly-in'sec- 25
tion and-- with; parts: broken awayv tot-show the’
Fi5.,.r._._41is_‘atfragmentaryl top plan‘ view similar
tor-Fig; Z'eXceptthat-the wires are now- in the
30‘ over the joints.
twistinghead and the surplus wire'cut' oifl;
Each - of these wires- is then.
brought through awV-shaped groove andagainst
a sharp abutment which .strips the paper. from.
the‘ wires as they’ are pulled thereagainst. YThe
wires are then'positioned, one aboveeach ‘of the
35‘ twisting heads andv-thelfreeendsbrought out between‘ a-pair of notched blades which laterserve
to cut off‘the surplus wire.:_. Theother pair of.
wires orthe-ones to'the- left of the machineare'
now positioned one in each of, the. V-shaped
.49. grooves and the-papenst-ripped therefrom and
Fig.5 is an end view partly in section of-Fig. 5:;
Fig. 5a isafragmentary view partlyin section)
off-Fig. 4 taken on-line Sim-5a;
Fig. 6- is an end~~view similar‘ to Fig. 5,‘ but
showing the position »of-the various parts just 35
prior-to-the completion of the splice;
Fig. 7 isa fragmentarytop‘ plan view of the ,
machine at the completion of- the splice, just
prior to- its’ ejection;
Fig.8 is anend-view-of ‘Fig; 7;
positioned above“ the twisting heads with their
respective free ends extending.through"thecut-
Fig. 9 is.~a fragmentary top plan view showing
the sleeve slipped over the jointsand ready to
tingnotches as above‘ explained.’
The ?rst action which occurs in the "perforrn45 ance of‘ the twisting‘ operation is the'operation
of a'lever'whi‘ch actuates'a‘pair‘of'cutting-blades
which‘ cuts off ‘the surplus-wire;
plished by means of a=~pair of-notched*1p1ates~in'
whichtheendsvof ‘thefwirehave'been previously
50v positioned. Upon‘ continued movementiofi the
operating lever the v‘twisting. heads-.engage: their
respectiveqpairs< oft wires, ; one wire extending‘:
fromaeachwside of‘ the:machineyandhtwistrthem
one-"about theother.» As the movement of ‘the
55- operating lever ‘continues, the pairs of wires are
Fig-7101s. a-fragmentary end view of theslip
ping. and: ejecting mechanism taken“ on the lines 45
ilk-l0 of Fig. 3;.v
Fig. 10ais~a view- similar to Fig. 10 in itsoper
atedrror ejected-position;
Fig. v11anend-view-lpartly-in. section of‘
Fig. 9;.
Fig. 12 is a fragmentary view partly in section
taken on line -I>‘2-—l2l.of.- Figs 2;
Fig. 13 is a fragmentarytop-plan- view- with
thevsleevecovered. joint ejected. from the ma
Fig. 14 is an end view of Fig. 13:
Fig. 15 is a fragmentary sectional view taken
one line I5—|5 of Fig.3;
.Fig. 16 is an enlarged view of a completed
joint with a single pair of wires and the sleeve
' in a position it would assume just prior to it
being slipped over the joint;
Fig. 17 is an enlarged view of the completed
joint illustrating the position the two pairs of
10 wires ‘assume just prior ,to the slipping of. the
~ sleeve, a portion of the .sleeve .ionly being shown;
which are at right angles to the slot '25, the ‘base
being secured to the plate [8 by means of bolts
which pass through both sets of slots and which
may be tightened to secure the machine in any
desired position.
As shown in Figs. 1, 2 and '7 there is pivotallyv
mounted at 21 a lever arm 28 which is actuated
by means of the handle 29 through the linkage
30. The handle 29 travels from the stop 3|‘ to
the stop‘ 32, spring 33 restoring the handle 29 10
to its .normal position as shown in Figs. 1 and 2.
The upper end 34 of the lever arm 28 is adapted
to operate the various elements of the mecha
Fig. 18 is an enlarged view showing the insu
lating sleeve slipped over the joints in the‘ pairs , nism in a manner that will hereinafter be
of wires.
,‘In the splicing of pairs of_;wi_res in telephone
and telegraph cables by means" of the so-called
“pigtail” splice it ‘is desirable to have’ a non
uniform pitch,_the lack of uniformity in the
pitch tending to prevent an unscrewing action
when’ tension is‘ila’pplied to the twisted joint.
When the free ends of {the two parallel wires are
and is connected to the lever‘ arm 34 by a double 20
pivoted and yieldable linkage which comprises a
pivoted body portion 31 and a pivoted plunger 36.
'gripped"andtwisted-one»? about the other, the
' As shown in Fig. 12 the rack 36 drives a pin
greatesttwisting stress takes place at the point
ion 39 which, being integral with the large gear
where the torque is applied. Therefore, should‘
the twisting continue beyond a certain point the
ions‘ 4| and 42 which arein turn secured to av
'wire will be twisted off. ‘In the imachine of this
invention, shown in‘ Fig." 1, as in my. previous
patent ‘heretofore referred to,»I have utilized
30. this principle’ which results in the types of splice
shown inFigsjl? and 1'7.
._ Byreferringvto Figs. l6'and 17 it is'readily
', apparent that the twisted portion of the wire is
notuniform-and that the ends of the pigtail are
as twisted very much tighter than the upper por
tion of the joint.
j ' '
The splicing machine of this invention is adapt
edlfor splicing two pairs of wires simultaneously,
sta‘ggeringthe joints, and slipping asingle sleeve
over the-two joints‘as shown in Figs. 17 and 18.
‘Fig’. ‘1 illustrates the splicing machine setup
in position ‘to splice together the conductors of
a lead-covered telephone cable, the opposite ends
of which are indicatedat l0-’ The cablé'ends l0
arebrought oppositeeachbther and spaced suf
?ciently far 'enough‘apart to allow freedom for
the splicing operation and for-the space that
' has to be occupied by the completed splice.
1Referring to Figb'l, a pair-of clamps II' are
50 provided having arms adapted to be tightened
a'round'the cable ends II] by means-of suitable
bolts. The front members’ ofeach of these
7 clamps have long shankr‘portions I2 and I3 which
are bent at the top to'iprovide the supporting
flanges 14 and I5.‘ Theseshank portions are
provided with longitudinal slots>_l6 and H to
_ permit the movement of the support for ‘the cable
splicing machine.’
Q Mounted upon the base 26 is a gear box 35
which houses a train of gears of large ultimate
"ratio‘ (see Fig. 12) which is driven by a horizon
tal rack 35 vwhich extends through the gear box '
40, ‘causes it to rotate, therebyidriving the pin 25
pair of- spaced apart horizontal spindles 43 and
44 on the'opposite ends of, which are mounted,
the twisting heads 45 and 46. These ‘twisting
heads comprise conical shaped bodies having tan 30
gential arms extending therefrom and at the
junction of the arms and the body are rela
tively deep slots 41 and 48. The dimensions of‘
the twisting heads are such that the- arms ,in.
rotating seize upon the pair of wires to be twist 35
ed and force them into the slots to be retained
therein during the twisting operation and the
formation of the splice.
- Mounted on the rear face of the gear box 35
is a ?xed cutter blade 49 and a movable cutter 40
blade 50, this movable‘ blade 50 being pivoted
at 5| as shown in Fig. 5a and has a downwardly
extending portion 52 which engages and is actu
ated by the sliding bar 53 which in‘ turn is piv
otally ‘connected to theupper end 34 of ‘the 45
lever arm 26 by means of the linkage 54.
Figs. 2, 4,’ 7, l3, and 15.) The cutting bladesi49
and 50 have cooperating pairs of ‘cutting ‘edges
55 and 56 and they form a doubleshearing‘de- _
vice operated by the ‘projection '52 engaging a 50
notch in the sliding bar 53‘; The angular move
ment of the cutter blade 50 is limited by the fact
that the projection 52’ leaves the notch-in the bar
53 and rides‘upon the surface thereof after the
cutter has severed the wire (see Fig. 5a). ’
_ Located ‘ in the rear ; of the shearing device
just described and adjacent to the twisting heads
45 and 46 is a stationary plate>51 the function
The support for the cable splicing machine
60 comprises a metallic plate l8 provided at its end
portions with meansv which engage the slots l6
and IT to prevent the vertical movement there
of which is described in detail below. As' shown
in the various ?gures thetwisting heads 45 and
of.,_ The crank wbolts l9 and 25 pass downwardly
through'an aperture in the -'?anges,l4, and I5
65 and threadedly engage'the upstanding bosses 2|
and 22 on the plate l8. The bolts l9 and20 are
distance equal to the groove. This-construction
provided with flanges 23 and‘24v which engage
the flanges l4 and I5 and support‘the ‘weightyof
46 ' are provided with circumferential grooves
and the arms on the twisters' are spaced apart a
permits the use of a very simple ejecting device
for dislodging the wire ends after they have been
twisted off and which, might stay in the longi- .
tudinal slotshin the twistinghe'ads, The eject
ingv'device for eachltwisting head comprises the
the ‘machine; and provide means v‘for raising and yieldable ?ngers 58 and 59.which. are positioned
70 lowering‘it. Means for permitting longitudinal ‘in the grooves of ‘the twisting heads and held 70
movement of the machine is provided by the slot
25 in the plate I! which has suitable bolts mount
ed therein (not shown).
' The splicing machine'is provided with a'base
26 which has provided therein a pair of slots
in engagementtherewith byv suitable springs (not
shown) which permit the wire to pass thereby
during the twisting operation, but on a reversal
of ~ the twisting
heads the ‘fingers
not 75
yield; therebyv removing. from. the: grooves. anyv
wire remaining therein.
I At the .rear. of. the base 26>.and mollntt-ldv above
it. is.a slideway 60.; the ‘bottom of. which is open
Slidably 10,-...
cated inlthe slideway-60sis a'carriage 6I1which
hasseveral parts extending downwardly through
. as shown in thevarious ?gures.
the opening in the slideway.
The ejecting elements are restoredv to theirrnore
mal:position. as showniinsEig. 1; Whenthe ‘lever
arm z?lrisreturned-againstitsrstop 31.1
‘ The mechanism for keeping,theyejected;wire1
away;from the twisting mechanism comprises‘. the _
plate .90.: shown in dot; and .dash and .fulL-lines in;
the various ?gures, whichihast provided thereon.
thev upstandingportions SI .and :9 2:;which Whengin
_One of the- downwardlyfprojecting portions
comprises a projectionBZ lby meansofwhich the
carriage 6-I isfheldain-normal position, asvshow-n
slidewa-yr??', as shown in Figs..l, 3; 5;.6-‘and-8e 10;.
in‘ Figs. 1 and? 2; at the right-hand side of;
the rear face ofthe. side wall 93;;at
they machine ~- until ' released by the‘ trigger 63=
mally held in itsraisedposition, asshown. in
normal position‘ project upwardly‘. about; the,
Thisiplatei. is .pivotally . mounted ; at ; its end 90, on;
which is»-pivoted»at-64_= to the portion 651~of> the
Figs.v 1; 3,- 5, 6.:and=81by=means ofthespringrllli,
15: slideway~60l and is held-imposition by means of =
one: end. of ‘Which-is. secured to. the.- under side.
a spring (not shown), -Mounted-on-the projec-r
tion BZ-‘is a pawl‘ ii?-"b-ywhich- the carriage BI
is' moved to- the left- whena ‘projection on» the
leVer‘arm-I is engaged therewith,v the operation‘
of l the slideway. 60.; and :the. other; endssecuredv ,to
theiplate. 90.»
' Securedtothe lower-inside edge of the. plate
90=istat?at spring. member.» 96 :whichprojectsaa
slight" distance.v below the lower‘ edge. of; the: 20.’
The upper end 34: of the 'lever-arm~ 28~carries a plate. ‘ When thehandleuz?lisoperatedandthe;
pi-votedlhook bar 6-1,- the. free end ofrwhich'ridesr lever arm 28 moves the pivoted hook bar lii‘Ifto
on'the arcuateitrack 68'v which extends upwardly
from the baseand which comprises two levels
25: joined by the inclined portion‘69‘.v The free "end
'I0~~of1the bar-61 when raised up upon‘ the right‘
hand portion of the track‘ 68 is adapted to engage
and release ‘the trigger 63. The hookv ‘M will
then-have passed by and be in agposition-to en
gage the pawl~66- so that‘ when the lever arm
28~is restored to its normal position the hook 1-I *
member 961' and causes the plate 90 togbe-ldee
pressed. See Figs. 11'and'12; This action-isjust
prioritothe time'that theewiresarelejected from.
the machine by the: ejecting.» device heretofore;
described; After the carriageGI hasmoved-the
full'distance to the ‘left they hook ‘II. slides» off
the spring 96~thereby permitting the platet90'ltoi
riding on the upper level of the track“ drops
down to the lower level over the inclined portion
69. This causes the hook TI -'to be‘ disengaged
be restored to its-normalIpositiondue to~the ao-' 35;
tion-of the spring» - Sig-thereby. holding the spliced
BI to be restored to its normal position "at the
The projection 62'will then engage the trigger (is
thereby completing the cycle of operation.
‘ Located at the central portion of the slideway
60 are the upstanding lugs ‘I3 and ‘14' which are
45 provided with blunt edges ‘I5 and ‘I6. A plate 'I'I,‘
having'a pair of notches ‘IS'and ‘I9, is mounted
on the carriage 61; one edge of each notch being
in alignment with the edges 15 and ‘I6 of the‘lugs‘
‘I3 and _'I4. These edges‘ provide a means for"
breaking the paper insulation on the. wires I I5‘
and HT when the wires are bent therearound
therebyv permitting‘lthe insulation to be readily
stripped from the wires to be joined.
At the right-hand end of the carriage BI is
55 mounted a. combined sleeve holding andwejecting
device. The mechanism is. pivoted to thlevcarriage
at 80 and has an upstanding lug 8| and‘atri'gger
82 is pivotally mounted on the outside face of
lug and has a. horizontal notch 83 therein
which is in alignment with the notch 84 inthe
lug 8|. Located on the leftfend of the slideway
60 is an arm 85 having a notched lug 8E-mounted
thereon. The ejecting mechanism, is con?ned
between the two rails 8'! and 88. of theslideway
and bears against the inner side of rail88. The
cut-out portion .89 on the ejection mechanism is
adapted to engage. a projection on the rail 80,.
which causes the ejecting device to pivot about,
returns-to its normal position and the bar. 6T
movesto the-leftthe hook ‘II engages ‘the spring.
Figs. 131 and 14, until the hook portion which is
40 right-of the machine by means of the spring ‘I2:
shown .on .Figs. Grand ‘7*.’ When the. lever. arm ;28z 25.’
will engage the pawl 66 and'carry the carriage‘
BI _to theleft within the slide-way 60; as vshownin
from'the pawl ?tthereby permitting the carriage
V 50,
the/righton the. track 68:.the hook ‘II ontheyfree
end ‘I0;.slides._under~the= spring member v955; as
the bearing >80, allowing the _-trigger~82 -t0_release,
thereby permitting theyejectingv device to push,
the wire away from-themachine,‘ as shown. in
Fig. 9. At thetime thisiaction. occurs the arm.
85 is alsocaused tomove outwardly bythe actionv
75 of‘ a projection Onthecarriage .as shownin Fig. 9..
wireszaway from the'twisting-mechanism.
Mounted‘ on the- end/34 of the lever Iarmf 284s a
horizontal bar 91.‘v This-bar is-pivotally secured
by-vmeansof a-link- member~98ito the end 34' by
meansof the stud‘99; and is slidably mounted in
suitable-guides on the-interior-of the ‘base 26 and
is adapted-tobe-moved-to ‘the right :or to the left,
simultaneously withrrtheloperationrof the other
arms'and devices associatedwith the lever arm‘. 45
285- Mounted on thebar-BTis-aboss I00; This
boss is provided with‘ high and low portions IM
and I02 and is longitudinally adjustable witht-re-l
spect to the bar 91,v said boss being secured in the
desired position by means of‘ the- screws; I03. 511;
Pivotally mounted on the extending-‘portion I04
of the slidewayv 60 directly in back of the twisting
heads 45 and 46 and in alignment therewith are
a ‘pair of ?ngers I05 and I06; provided withipro
jecting-portions I01 and I 08.‘ The lower-ends of‘ 55
these ?ngers project through‘ suitable openings
in the member I04 andare joined at their lower
ends by‘ means'of the link- bar I 09.1: The. lower
end of the-?nger‘! 06 extends some distance below
the bar>I09 andis provided witha shoe‘ I I0 which 60
is‘ adapted to engage the boss-l00swhen the bar
I09 is»operated by‘means of the 1ever:arm.28.
When-theshoe ll?acontacts the high spot IOI of
the boss. I Wait causes the. link bar; I 09~_to moveeto
theleft as shown in Fig. 5, which causes thev?n
gersI05jandI06" to pivot aboutrtheir axis III
and ,I I2 vthereby- bringing the projecting. portions.
I01. and, I08 down into contact withthe anvils -I I 3
and VI “as shown in Fig.5. The ?ngers remain.
in; this positionduring ‘the .time. the shoe, IIO_is_
riding .on the high spot {I 0I on' the'boss I 00; As
the boss I00'and the bar 91 move'further to the
left ‘the shoe IIO drops down to-the low spot'I02
onmthe boss- I00~’as shown-in Figs, 6, Wand-.38.‘
When; thisoccurs- the projections @I 01' and I 08~of
the ?ngers I05 and I06 leave the surfaceof the‘
on thewires by ?rmly holding them against the,
anvils H3" and H4 andassume» the position as
shown in Fig. 6. When the lever 91 returns to its
normal position the-shoe IIO rides back on the
surface of the boss I00 and drops down into its
normal position against the stop I I5 as shown in
II3 and H4.
. ..
- The ?ngers I05 and I06 are operated by means
of a cam-shaped projection on the base I00 which‘
has high and low spots IM and I02 thereon to
provide the proper time interval. This boss is
Figs. 3, Hand 14 thereby completing the cycle of " mounted on the bar 91 which in (turn is operated
operation; The purpose'ofi the ?ngers I05 and by means of the leverarm 28. . . i v
I06 is-‘to vary the twist in the pigtail by applying
10 pressure at- a de?nite place on the twisted por
tion of the wire and maintaining such pressure a
su?icient lengthwof time to provide the type of
pigtail as shown in Figs. 16 and 1'7.
Inhsplicing the ends of the cable I0—l0, the
15' cable ends are oppositely'spaced with su?icient
room between them for. the splice. (See Fig. 1)..
The support for the machine, which. is the plate I
I6, is. secured to the cable ends by‘ means'of the
clamps II and the machine is secured in position
20 on the plate by means of bolts (not shown) which
pass through aligned, slots in the base 26 of the
plate I8.
During this operation the twister, heads 45 and‘
46 continue to rotateuntil the wires are twisted’ 10
o? to form the pigtail splice as shown in Figs. 16
and. 17, the short piece of wire remaining in the
twister, slots being ‘ejected therefrom by means
of the ejecting ?ngers 58 and 59 when the oper
ating handle 29 is released and the rotation of the 15
twisting heads is reversed. .
When the operating handle 29~has been pulled ,
forward to its stop 32 the hook ‘II will have re-‘
leased the trigger 63 and engaged the pawl 66,‘
and on the return movement of the operating
handle 7'29 the carriage 6| will be pulled to the
left thereby causing the‘ pigtails to be bent to the
left in a manner as shown in Figs. 16 and 1'7.
After the pigtails are bent to the left-the insulat
ing sleeve H8 is pushed to the left and over the
lating sleeve H6 is ‘slid thereover as shown in , spliced wires as shown in Fig; 9 and are ?nally
. Assuming that two pairs of conductors such as
H6 ‘and I Hate to be spliced simultaneously, the,‘
251 right-hand pairI I6 ‘are untwisted and an insu
Figs. 1, 2, 3;"4, 5, 6, '7 and 8. The thus separated
conductors‘ are now placed in the notches ‘I8 and
ejected fromv the machine by ejecting mecha
nism II9 as shown in Figs. 9, 11, 13 and 14.
19 of the plate." andbent around the‘ blunt - ,
The other pairs of conductors in the cable ‘are
spliced in a similar manner. The machine may 310V
edges ‘I5 and ‘I6 of the lugs ‘I3 and 14, which frac
tures the paper insulation and permits its» ready - be shifted during the splicing operations so that
removal and leaves the‘ wires bare in a condition the ‘joints will be evenly distributed throughout
the cable joint.’
for splicing. The bared portion of the, conduc
.7 A ‘cover plate I20 is secured to the base 26 by
tors is then drawntoward the front of the ma
35 chine and positioned in the notches in the cutting means of suitable screws III.
blades 49 and 50 and are then bent around these .
notches at right angles and under the lugs on
the cutting blade 49 to maintain them in position.
The corresponding pair‘of conductors I I1 located
40 on the left-hand side of the machine are treated
*What is claimed is:
j 1. A. splicing machine comprising a‘ pair of
rapidly rotatable members ‘adapted to engage
and twist together simultaneously two or more
pairs of approximately parallel wires and adjust-v 40
ablewirewgripping means on said machine for’
in-a similar manner, as shown ‘in Figs. 1 and 2._
We now have two pairs; of- wires positioned-inzthe'
putting a predetermined pitch in the twist of
machine ready for splicing, which ‘will be insu
lated by means of a single sleeve.
This is accom
45 plished by the operation of the handle 29 which
in turn operates the lever‘arm 28 which causes
the functioning of the devices hereinafter de
2. A splicing machine comprising a pair of
rapidly rotatable members adapted to engage and 45
twist together simultaneously two or more pairs ,
of approximately parallel wires, adjustable wire
gripping means on said ‘machine for putting a ‘
" scribed. ' M
~When the handle 29 is pulled toward the oper
50; ator the lever arm 28.moves to the right due to.
predetermined pitch in the twist of each joint,
and means for ejecting the wires from the ma
chine at ‘the’ ?nish of the splicing operation.
3. A splicing. machine comprising a pair of
right causes the rack bar 36 also to move to
the right, and" being in mesh with the pinion-v rapidly rotatable membersadapted to engage
39»drives the large gear 40 which in turn drives and'twist' together, simultaneously, two or more
55 the twisting gears 4| and 42 causing the twister pairs of, approximately parallel wires, adjustable 55
heads 45 and 46 ‘to rotate clockwise as viewed’ ' wire gripping means on said machine for putting
from the front of the machine. When this action a predetermined pitchin ‘the twist of each joint,
takesplace the projecting arms on the twisting means for bending the splices parallel to said
heads engagethe wires and cause-‘them to bev wires, vand means for sliding a previously placed
forced in the bottom of the slots 41, and 48 on insulating sleeve over the bent splices of» the pairs 60
the twisting headsv 45- and 46, in order’ to hold of wires.
4. A splicing machine . comprising a base
them firmly- during‘" the twisting. operation. At
the time the twisting heads start their rotation member, a pair of rotatable twister heads mount
ed on said base, each twister head adapted to
the movable blade '50 rotates about its axis‘ Si by
65 means of’ the ‘sliding bar 53fwhich is secured'to receive andhold the wires, means for, rotating 65
saidtwister heads to simultaneously twist the
theleverarm 28 by means of the link 54. This pairs of wires, means for severing the surplus
the linkage 30. The lever arm'28 moving to the,
bar 53 h'asa projection thereon which engages the
blade ‘and causes the shearing off of 'the wires
portion of the wires, and adjustable wire gripping
means operable prior- to the completion of the
which have beenppreviously placed in slots of the twist for putting a predetermined pitch in the 70
cutting blades“ and so. The'twister heads '45 , twisted portion of the pairs.
5. A splicing machine having a pair of rotat
and 46 continueto revolve and tightly twist the
wires andafter a predetermined number of- twists able twister. heads mounted thereon, meanslfor
have been given to‘the wires the ?ngers ‘I05 and rotating simultaneously said twister i'h'eads, ‘said
I96. eremved downwardly seas tooexert pressure twister heads provided with" slots therein which 75
receive and hold the wires to be twisted, and
means for insulating said joints comprising a
single tubular sleeve, said single sleeve adapted
to be positioned over the two joints in the wires
on the completion of the splice.
completion of the splice for varying the tight
ness of the splice, means for severing the surplus
wire from the joint, and means for slipping an
insulating sleeve over the two joints prior to the
ejection of the splice from the machine.
6. A splicing machine having a pair of rotat
8. A machine for splicing together simultane
able twister heads mounted thereon, means for
ously two- pairs or more of conductors by twist
ing about each other the conductors of each
comprising a pair of rotatable twisting heads
rotating simultaneously said twister heads, said
twister headsprovided with slots therein which
receive and hold the wires to be twisted, and
means for insulating said joints comprising a
single tubular sleeve, said single sleeve adapted
to be positioned over the two joints in the wire
on the completion of the splice, and means for
15 ejecting the twisted joints and the enclosing
sleeve from the machine.
'7. Means for splicing two pairs of wires to
which engage and twist simultaneously the pairs 10
of wires, means for severing the surplus portion
of the wires, adjustable wire gripping means for
putting a predetermined pitch in the twisted
portion of the joint, means for bending the
twisted portions against the wire, means for slip 15
ping a previously placed insulating sleeve over the
two- joints, means for ejecting said completed
joint from the machine, and means for prevent
ing the ejected joint from coming in contact with
gether simultaneously, staggering the splices and
covering said splices with a single insulating
20 sleeve comprising, a plurality of twisting devices, > the twisting mechanism once it is ejected from
adjustable wire gripping means for rotating said
twisting devices, means operated prior to the
the machine.
Без категории
Размер файла
1 099 Кб
Пожаловаться на содержимое документа