US1609305A - Electrically-operated automatic throwing-out-of-gear mechanism for braiding machines - Google Patents

Description

ING OUT OF GEAR Dec. 7 1926.

' G. PERRON ELECTRICALLY OPERATED AUTOMATIC THROW 2 Sheets-Sheet 1 MECHANISM FOR BRAIDING MACHINES Original Filed June THROWING OUT OF GEAR G MACHINES Original Filed June 30, 1922 G. PERRON Dec. 7 1926 ELECTRICALLY OPERATED AUTOMATIC MECHANISM FOR BRAIDIN Patented Dec. 7, 1926.

GUSTAVE r'nanon, or PARIS, FRANCE.

ELECTRICALLY-OIEERATED AUTOMATIC THROWING-OUT-OF-GEAR MECHANISM FOR -BRAIDING MACHINES.

Original application filed June so, 1922, Serial No. 571,922, and in France July '5, 1921. Divided and this application filed November 24," 1923. Serial No. 676,814.

The present invention has for its object an lever 68 is pivoted, at 72, a plate 7 3 one end 55 electrically operated throwing out of gear 73 of which can come within range of a mechanism for braiding machines in which finger 74 provided on the fixed element of the breaking of the thread causes through the coupling 50 and. the other end 73 of 5 an electric relay, the working of a mechaniwhich strikes the. part 7 5 of a lever 76 cal device securing the throwing out of gear. pivoted at 77 to the part 70.

The present application is a division or my This lever 76 carries a soft iron plate 78 Patent N 0. 1,558,039 granted on an applicaarranged opposite an electro-magnet 79 and tion serial No. 571,922, filed June 30, 1922. is controlled by a spring 80. Thelever 56 10 This device is characterized by the fact is always pulled upwards, intothe disenthat a projection of the throwing out of gear gaged position, by a spring 81. In the en- 65 lever of the machineremains incontact with gaged position of the lever 56, the latter is a nose onan intermediary lever and so holds in contact with a spring blade 82 carried by the throwing out of gear lever in the en- 'theframe but insulated from the latter.

gaged position until, when the thread The conductors of the electro-magnet breaks, a swinging part, released under the terminate one at the spring 82 and the other 70 action of an electro-magnet, comes on the at one of thepoles of any desired source of path of a rotating part of the driving pinion electricity. v

, which results in the throwing out of gear A metal ring 83 is mounted above the lever leaving the engaged position and protable 18. of the machine concentrically with ducing the throwing out of gear of the-mathe latter, so that the tension levers -31 of, 75

. hine. the spindles 3' come into contact withthe Fig. 1 is a fragmentary sectional view ilsame when the threads break. i

lustrating the present improvements; and This ring i insulated fro th mass or as V Fig. 2 is' a pe p iv V one larger body of the machine and connected to the scale showing particularly the automatic other pole of the source of electricity.

stopping mechanism. .7 The'working'of the device is as followsr For the sake of clearness of the drawing, The electrical device formingrelay com-.

I the spool holder of the spindle is supposed prises the ring 83, theelectro-magnet 79 and separated from the spindle foot and rotated the lever 76, thelightness of which is suf- 90 thereon. I p ficient to enable it to respond toany impulse; 85

The braiding machine comprises a frame 1 fromthe electro-magnet, however weak said in the shape of a cup on which are mounted impulse may be.

the spindle supporting and driving parts- The throwing out of gear mechanical "de-' 5 Said parts areidriven'by a pinion 48 keyed vice comprises the parts 66, 67, 68, 73, 74.

on a vertical shaft. 49. On this latter is It receives the necessary impulse for the 90 a mounted one of the elements of a claw clutch th o ing o t Qfgear f th d i i a t 50 the other element of which is carried by 7 1 f th dri i g g fth hi th the device which transmits the driving relay device acting simply in order to permit ower to themachine. a the mechanical device to receive the said On the drawing, the saiddevice comprises impulse.

. I r V 95 two bevel pinions 51 and 52, the latter being When th th d f n f Tthe i dl secured to a short spindle 53 towhich 1s breaks, the tension lever 31 is no longer sub secured the driving pulley5 1. mitted to the action, or thethread and the,

These elements are supported sbya suitable spring 32 pulls violently back sa'idlever 31 part 55 secured to the frame. andpre'sses it against the circular rim 83. 100

The claw coupling 50 is controlled by The electric circuit containing the, electromeans of a lever 56 pivoted at 57. magnet 79 is'then closed through th'e'ma'ss-of The lever 56 has a stud 66 which acts on the machine. c I 5.0 a rack or cam67 of a small lever 68. pivoted The electro-magn'et attracts, the lever-76' at 69 to a part 70 secured to the frame of the part of whichmoves out ofthe path 0 the machine. A spring 7lhas the tendency of they end 73 of the plate73. The "latter" always to bring back the lever 68 and to can then turn, thelever arm 73-'beingn .uch keep it in -contact with the stud 66. To said greater in weight than .thezarm 73"a nd the.

about the pivot point 69. The part 67 is moved away from the stud 66 and the lever 56 under the action of the spring 81 is turned in such a manner as to produce the disengagement of the claw coupling 50. In this movement, the lever 56 leaves the contact of the spring 82 and the circuit is broken; a cross bar 5% secured to the lever 06 turns the plate '2' and withdraws it from the action of the linger T4,

As the current has been broken by 56 going away from the spring 82, the spring 80 draws back the lever 76 to the position shown on the figure the part being ready for locking the part- 73 of the lever 73. g

If, after having repaired the thread, the machine is thrown into gear again, the lever 73 resumes the position shown in the, figure in which 73 is locked on the nose 75 of the lever 76 and at'the same time the lever 56 is locked by the nose 6'? of 68 acting on the stud 66.

This device has the advantage that it acts immediately, no matter what the speed of the machine may be.

In fact the sensitiveness of the lever 7 6 is such that, as short as ina be the contact of the lever 31 with, the ring 88, the attraction of the electro magnet on this lever is sufficient for producing the unlocking of 75 from 73 as the said '73" exerts on the part 7 6 of the lever 75 only a light pressure independent from the mass of the heavy parts 50 and 56 of the machine which are to move when the throwing out of gear takes place;

Moreover, as; soon as'the throwing out of gear is produced, the circuit is broken through the separationof 56 and 82, which allows the lever '76 to resume its prior position and to automatically secure'the positioning of the throwing out of gear parts for a further operation. r

It is also to be noticed that the necessary power for the disengagement of the stud 66 from the projection 67 is furnished by the part 7 a of the driving mechanism itself, so that whatever may be the strength of the spring 81 forcing 66 against 67 the disengagement will be always secured, the power producing said disengagement being itself proportional to the driving of the machine.

What I claim is: V

I 1. In a braiding machine, in combination, adriving member, a driven shaft, a clutch adapted to connect said member to said shaft, a lever engaging said clutch and biased'to move itto unclutching position, a

: v latch normally holding said lever and-clutch in clutching position, a normally inoperatlve connection between saiddriving member and latch, a normally deenergized electro-magnet controlling said connection, and means controlled by the breaking of a thread supplied to the machine for closing the circuit of the electro-magnet, whereby upon energizat-ion of said magnet the latch is connected to said driving member and is operated thereby to release said lever and permit it to move the clutch to unclutching position.

2. In a braiding machine, in combination, a driving member, a driven shaft, a clutch adapted to connect said member to said shaft, a lever engaging said clutch and biased.

to move. it to unclutching position, a pivoted latch engaging said lever and holding it in clutching position against the action of its biasing means, a finger'pivotcd to the free end of said latch, a cam projection on said driving member, said finger adapted to extend into the path of said projection, means normally holding said finger out of said path, an electromagnet adapted when energized to release said finger, and means con-v trolled by the breaking of a thread supplied to the machine for closing the circuit of said magnet, whereby when a thread breaks the magnet is energized and the finger is released and comes into the path of said projection which engages the finger and positively moves the latch from engagement with the lever, the latter moving under the influence of its biasing means to unclutching position.

3. In a braiding machine, in combination, a driving member, a driven shaft disposed vertically, a clutch member sli-dable on said vertical shaft adapted'to clutch the latter to the driving member, a hand'lever having one end engaging said clutch member and tending to rotate on its axis in a direction to disengage said member from the drivin member, an arm pivoted at its upper end and having a shoulder engaging over a projection on said lever to hold the lever in clutching position, a finger pivoted intermediate its ends to the lower end of said arm and having one end projecting in proximity to said driving member, an arm pivoted at its upper end and having its lower said last mentioned arm, and means for closing the circuit of said electro-magnet 7 upon breaking of the thread supplied to the machine,-said hand lever having a member attached thereto extending under said finger, whereby when saidlever after having been released by the energization oflthe magnet is'restored to clutching position the finger will be raised out of the pathof the'cam projection.

In testimony whereof I aiiix' my signature.

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