Shuttle embroidering machine

Claim 2

In a shuttle embroidering machine; a plurality of needle bars reciprocable between retracted and working positions, a needle carrier supporting said needle bars independently of each other, a driving rail for driving said needle bars, a pawl carried by each needle bar having a first position wherein the respective needle bar is coupled to said driving rail for reciprocation thereby and a second position wherein the respective needle bar is disengaged from said driving rail while in retracted position, and means for moving said pawls into and out of engagement with said driving rail including a control shaft in the machine in engagement with said pawls for directly controlling the pawl on each needle bar, said control shaft being rotatable and having means for controlling movement of said pawls into engagement with said driving rail for effecting said control.

Claim 3

A shuttle embroidering machine according to claim 1 in which said control shaft has depression means formed therein at differing angles of rotation for each said pawl, and each said pawl comprises a control arm engaging said control shaft in the radial plane of the shaft containing the depression means pertaining thereto.

Claim 4

A shuttle embroidering machine according to claim 9 which includes a leaf spring adjacent each needle bar and spaced from the bar when the pertaining pawl is in the said first position thereof and adapted to be moved into position to direct the respective needle bar, said pawl when moved to its said second position engaging said leaf spring and moving it to needle bar arresting position.

Claim 5

A shuttle embroidering machine according to claim 9 which includes a magnet for each needle bar, each magnet being positioned to hold the respective needle bar in retracted position when the pawl pertaining thereto is in the said second position theReof.

Claim 6

A shuttle embroidering machine according to claim 4 in which said magnet is an annular permanent magnet.

Claim 7

In a shuttle embroidering machine; a plurality of needle bars reciprocable between retracted and working positions, a needle carrier supporting said needle bars independently of each other; a driving rail for driving said needle bars, a pawl on each needle bar having a first position wherein the respective needle bar is coupled to said driving rail for reciprocation thereby and a second position wherein the respective needle bar is disengaged from said driving rail while in retracted position, a control shaft in the machine for controlling said pawls, said control shaft being rotatable for effecting said control and being nonaxially moveable in said machine and also being exchangeable, said control shaft having depression means formed therein for each said pawl, each said pawl comprising a control arm engaging said control shaft in the radial plane of the shaft containing the depression means pertaining thereto, an annular permanent magnet for each needle bar, each magnet being positioned to hold the respective needle bar in retracted position when the pawl pertaining thereto is in the said second position thereof, a guide rod being provided for each needle bar, said magnet being threaded on said rod, and a clamp nut to hold the magnet in adjusted position on said rod.

Claim 8

In a shuttle embroidering machine; a plurality of needle bars reciprocable between retracted and working positions, a needle carrier supporting said needle bars independently of each other; a driving rail for driving said needle bars, a pawl on each needle bar having a first position wherein the respective needle bar is coupled to said driving rail for reciprocation thereby and a second position wherein the respective needle bar is disengaged from said driving rail while in retracted position, a control shaft in the machine for controlling said pawls, said control shaft being rotatable for effecting said control and being nonaxially moveable in said machine and also being exchangeable, said control shaft having depression means formed therein for each said pawl, each said pawl comprising a control arm engaging said control shaft in the radial plane of the shaft containing the depression means pertaining thereto, an annular permanent magnet for each needle bar, each magnet being positioned to hold the respective needle bar in retracted position when the pawl pertaining thereto is in the said second position thereof, a guide rod being provided for each needle bar, said magnet being threaded on said rod, and a clamp nut to hold the magnet in adjusted position on said rod.

Claim 9

A shuttle embroidering machine according to claim 6 which includes means for manually controlling each needle bar independently of said control shaft.

Claim 10

In a shuttle embroidering machine; a plurality of needle bars reciprocable between retracted and working positions, a needle carrier supporting said needle bars independently of each other, a driving rail for driving said needle bars, a pawl on each needle bar having a first position wherein the respective needle bar is coupled to said driving rail for reciprocation thereby and a second position wherein the respective needle bar is disengaged from said driving rail while in retracted position, a control shaft in the machine for controlling said pawls, said control shaft being rotatable for effecting said control and being nonaxially moveable in said machine and also being exchangeable, said control shaft having depression means formed therein for each said pawl, each said pawl comprising a control arm engaging said control shaft in the radial plane of the shaft containing the depression means pertaining thereto, means for manually controlling each needle bar independently of said control shaft, said means comprising a plunger adapted to engage the respective pawl and move it to the said second position thereof, a spring urging said plunger toward pawl engaging position, and a cam lever on said plunger moveable to retract the plunger from pawl engaging position and hold the plunger in retracted position.

Claim 11

In a shuttle embroidering machine; a plurality of needle bars reciprocable between retracted and working positions, a needle carrier supporting said needle bars independently of each other, a driving rail for driving said needle bars, a pawl on each needle bar having a first position wherein the respective needle bar is coupled to said driving rail for reciprocation thereby and a second position wherein the respective needle bar is disengaged from said driving rail while in retracted position, a control shaft in the machine for controlling said pawls, said control shaft being rotatable for effecting said control and being nonaxially moveable in said machine and also being exchangeable, said control shaft having depression means formed therein for each said pawl, each said pawl comprising a control arm engaging said control shaft in the radial plane of the shaft containing the depression means pertaining thereto, means for manually controlling each needle bar independently of said control shaft, said means comprising a plunger adapted to engage the respective pawl and move it to the said second position thereof, a spring urging said plunger toward pawl engaging position, and a cam lever on said plunger moveable to retract the plunger from pawl engaging position and hold the plunger in retracted position.

Claim 12

In a shuttle embroidering machine; a plurality of needle bars reciprocable between retracted and working positions, a needle carrier supporting said needle bars independently of each other, a driving rail for driving said needle bars, a pawl on each needle bar having a first position wherein the respective needle bar is coupled to said driving rail for reciprocation thereby and a second position wherein the respective needle bar is disengaged from said driving rail while in retracted position, a control shaft in the machine for controlling said pawls, said control shaft being rotatable for effecting said control and being nonaxially moveable in said machine and also being exchangeable, a thread guiding roller for each needle bar, a lever supporting each roller and each tiltable to move the respective roller from a braked working position to an unbraked idle position, each lever having a control arm, and a second shaft engaged by said control arms and constructed in conformity with said control shaft, said second shaft being provided with depressions for said control arms and being rotatable and exchangeable.

Claim 13

In a shuttle embroidering machine; a plurality of needle bars reciprocable between retracted and working positions, a needle carrier supporting said needle bars independently of each other, a driving rail for driving said needle bars, a pawl on each needle bar having a first position wherein the respective needle bar is coupled to said driving rail for reciprocation thereby and a second position wherein the respective needle bar is disengaged from said driving rail while in retracted position, a control shaft in the machine for controlling said pawls, said control shaft being rotatable for effecting said control and being nonaxially moveable in said machine and also being exchangeable, a thread guiding roller for each needle bar, a lever supporting each roller and each tiltable to move the respective roller from a braked working position to an unbraked idle position, each lever having a control arm, and a second shaft engaged by said control arms and constructed in conformity with said control shaft, said second shaft being provided with depressions for said control arms and being rotatable and exchangeable.

Claim 14

In a shuttle embroideriNg machine operable by an advance program and having a frame; a needle carrier secured to the frame; journalling block means fastened upon said needle carrier; a plurality of needle bar means axially shiftable independently of each other as journalled by said block means and which by way of the advance program are capable of being shifted in or out of use at a time; spring loaded pawl means journalled on said needle bar means for the shifting in and out of use; an interchangeable control shaft rotatably journalled in the frame of the shuttle embroidering machine and directly effective therewith relative to said spring loaded pawl means journalled on said needle bar means; a driving rail means for driving the needle bar means capable of being coupled therewith for to and fro movement; each said pawl means being embodied as a two-arm lever including one pawl arm for coupling with said driving rail means and a control arm which is directly pivotable by way of said control shaft provided with depressions in predetermined locations to allow coupling engagement of said control arm.

Claim 15

In a shuttle embroideriNg machine operable by an advance program and having a frame; a needle carrier secured to the frame; journalling block means fastened upon said needle carrier; a plurality of needle bar means axially shiftable independently of each other as journalled by said block means and which by way of the advance program are capable of being shifted in or out of use at a time; spring loaded pawl means journalled on said needle bar means for the shifting in and out of use; an interchangeable control shaft rotatably journalled in the frame of the shuttle embroidering machine and directly effective therewith relative to said spring loaded pawl means journalled on said needle bar means; a driving rail means for driving the needle bar means capable of being coupled therewith for to and fro movement; each said pawl means being embodied as a two-arm lever including one pawl arm for coupling with said driving rail means and a control arm which is directly pivotable by way of said control shaft provided with depressions in predetermined locations to allow coupling engagement of said control arm.

Claim 16

A shuttle embroidering machine according to claim 10, which includes leaf spring means journalled on said needle carrier, each said needle bar means in disengaged positioning thereof being adapted to be secured by said leaf spring means which has said one pawl arm engaging thereagainst in raised positioning under pressure.