US1934120A - Fixed reed rotary box loom - Google Patents

Description

NOV. 7, 1933. J. HER I 1,934,120

FIXED REED ROTARY BOX LOOM Filed March 18, 1953 2 Sheets-Sheet l A TT ORNE Y.

Nov. 7, 1933. J. FEATHER 1,934,120

FIXED REED ROTARY BOX LOOM Filed March 18, 1933 2 Sheets-Sheet 2 Patented Nov. 7, 1933 e stares ears? This invention relates to looms of the revoluble shuttle box type. Its purpose is to stop the loom in case the shuttle is not thrown home into the shuttle box and thereby pr vent any. damage which would result. In this type of loom, the shuttles are carried in cells in a revoluble'box at one side of the loom while at the other sidewhich I will call the plain side, there is a. box with a single cell with the usual picker and other operative devices.

The shuttle box is caused to revolve either in one direction or both directions by suitable mechanism which is well known and which it is not necessary for me to describe. 7

In some types of this loom, the shuttle from the box side is picked or thrown when it is between the top and bottom or at the side, but this particular device of mine is intended for what is known as a top picker loom where the shuttleis 29 thrown when it is in a cell at the top of the box.

In such revolving box looms, it has been custernary to use what is known as a loose reed instead of a protector rod and feeler arms. Such a loose reed is so hung that if the shuttle stops anywhere between the warp threads, the reed when beating up will swing back or yield'to avoid a smash. a

The particular purpose of this invention is to permit the use of a fast or rigid reed on a revolving box 100m of the top picker type. v

advantages are those derived from the us of the top picker and the fast reed whereby smashes are avoided, the use of an all steel shuttle box which can accominodatelarger shuttles and therefore larger bobbins, the use of a better shuttle binder the end of which projects beyond the shuttle box, more production, better work and more continuous running.

A rotary box loom is faster than one of the type having vertically or horizontally movable boxes or cells.

Usual warp filling stop motions preferably are used and this device is for stopping the loom when there is a shuttle in neither the plain box nor the top operative cell on the revolving box side during the last part of the forward motion of the lay. Without some such protection, the beating up of a lay with a fast reed would force the shuttle up into the angle of the shed thus causing a smash.

For the purpose of stopping the loom, I use feeler arms on each side of the lay which are carried by a protector rod spring pressed so that ordinarily each arm will engage the end of a vention.

. the top box.

shuttle binder connected with the operative shuttie cell on each side of the loom.

When there is a shuttle in either box, these second pick while all the shuttles are in the revo' ing box and during'part of the forward motionef the lay beam. At this time, the top shuttie binder and feeler arm on the revoluble box side are engaged and must be released to permit the box to revolve. v y a 7 E, therefore, provide a system of cams and levers formcving the tip or finger of the feeler arm away from the binder and'out of the path of the 7 box so that the box can revolve.

in the drawings, Fig. 1 is a side view of a loom,

in section on line 11 of Fig. 3, partially cut away to show the parts concerned in this in- Fig. 2'is a side elevation partly in section showing the shuttle box and front of the frame approximately as in Fig. 1, but with no shuttle in Fig. 3 is a front view of the left or revolving shuttle box end of the oscillating frame, called the lay, showing the shuttle box in section. This is looking from the right in Fig. 1.

Fig. 4 is. a front View of the right hand of the oscillating frame or. lay showing the end with the plain shuttle box. i

Fig. 5 is a sectional view on line 55 of Fig. 3 I

; showing how the stop finger is raised to permit revolution of the shuttle box.

Fig. 6 is a sectional view on line 6-6 of Fig. 4

with no shuttle in the box.

Fig. I is a sectional view on line 7'7. of Fig. 4'

motion parts Lay L is pivoted on frame G at 17 and is caused 11 mounted in frame G, which rotates in the direction of the arrow A and drives a connecting to reciprocate in the usual way by a crank shaft;

. of the plain shuttle box 132.

rod 14 pivoted on the crank 13 and on the oscillating frame or lay L at the pin 15. The lay L receives from the crank shaft 11, a forward motion as shown by arrow F during the half revolution of the crank 13 towards the front of the loom and a backward motion as shown by arrow B during the half revolution of the crank 13 towards the rear of the loom.

During the rear half of the motion B of the lay L, the shuttle 33 is thrown across the lay L on the beam 25 from the revolving shuttle box 30 to the plain box 132 or vice versa. This motion of the shuttle is produced by a well known process using a picker stick mounted on the frame G at each end of lay L. These picker sticks are driven by cams mounted on the cam shaft 20 which revolves in the direction of the arrow C at half the speed of the crank shaft 11 due to the gear 18 on crank shaft 11 driving gear 19 on cam shaft 20.

During the forward half of the motion F of the lay L, the thread paid out by the shuttle as it is thrown across, is pushed up to the woven cloth and the shuttle box may be revolved at this time in accordance with the pattern of the weave, provided the shuttle 33 is in the revolving box 30, which condition occurs once in every two revolutions of crank 13 or in every odd forward motion of the lay L, if the shuttle 33 is in revolving box 30 at the start.

During the even revolution or even forward motion of the crank shaft 11, the shuttle will be in the plain shuttle box 132 and the revoluble box 30 must not revolve.

In case the shuttle 33 is not thrown home, I provide a stop motion which tends to stop the loom whenever during the forwardmotion F of lay L, the shuttle 33 is out of both the top cell 32 of the revoluble shuttle box 30 and the cell The presence of the shuttle 33 in either the top cell 32 of the revoluble shuttle box 30 or the plain shuttle box 132 during the forward motion F of lay L will render the'stop motion inactive and permit the continued operation of the loom.

To produce these results, I supply each cell 32 of the revoluble shuttle box 30 with a shuttle binder consisting of the spring finger 39 which is hinged to the casing at 38 and is pressed by the spring 37 towards the shuttle cavity of cell 32.

At the end of the shuttle box towards lay L, I

bend the spring finger 39 away from the shuttle cavity of cell 32 to form the tip 40 which is limited in motion towards the shuttle cavity by the stop 36. See Fig. 9. The shuttle binder 39 acts as a brake to stop the motion of the shuttle as it enters the cavity 32 and retains the shuttle in the cavity 32 under the lip 35.

At the-plain shuttle box 132 on lay L, a similar shuttle binder comprising a spring finger 139 having a tip 140 and a hinge at 138, is acted upon by a spring 137 to brake and retain the shuttle 33 with the aid of the lip 135. When there is no shuttle in the box 132, the tip 140 moves to a position against the stop 136 as shown in Fig. 6.

The shuttle binders 39 and 139 cooperate with one piece'feeler arm 144 and two piece feeler arm H made up of back arm 44 having a forearm 42 pivoted as part of it. Both feeler arms H and 144 are carried by a protector rod 45 which is spring actuated so that the tendency is to cause the feeler arms to engage a shuttle binder unless prevented from so doing.

On the layL, theprotector rod 45 is journalled bearings 46 and 146 under the lay beam 25 of lay L and has keyed to it so as to turn integrally, the arms 44 and 144, the daggers 47 and 147, the check finger 143 and the spring arm 49. The tendency of the spring 50 acting on spring arm 49 is always to hold up the beveled tips 48 and 148 of the daggers 47 and 147 to so dispose them as to engage the frogs 51 and 151 to stop the loomduring the forward motion F of lay L as shown by Figs. 2 and 6.

However, the presence of the shuttle 33in the top box 32 of the revoluble shuttle box 30 causes tip 40 of the shuttle binder 39 to move out from the stop 36 and force away the tip 41 of the forearm 42 which is hinged at 43 to arm 44 carried by rod 45. This causes motion of rod 45 against the tendency, of spring 50, to deflect the daggers 47 and 147 away from the frogs 51 and 151 and so prevent stoppage of the loom.

Similar action is produced by the presence of the shuttle 33 in the plain shuttle box 132 through the tip 140 of shuttle binder 139 being moved away from its stop 136 and thereby forcing away tip 141 of arm 144,as shown in Fig. 7, to cause motion of the rod 45 as stated above.

In order to permit rotation of the revoluble shuttle box 30 which as explained above can occur only during the forward motion F of lay L during every second revolution of the crank 13, the cam is keyed to the cam shaft 20 so that its active surface 1'70 which extends through an angle of about seventy-five degrees acts upon the roller 73 pivoted to the cam lever 72 to produce by a series of arms and levers, the raising of the forearm 42 of the feeler arm H to clear the spring finger tips 40 of the revoluble shuttle box 30 so as to permit rotation of the shuttle box 30 on its shaft 31 in either direction of arrow P as shown by Fig. 5.

This rotation of the revoluble shuttle box 30 is produced by a well known mechanism and is no part of this invention. During this process, the stop motion is held in the active or inactive positions by a check arm 143 as explained below. If the shuttle 33 is home in the revolving box 30 at the beginning of the forward motion F, it holds the daggers 47 and 147 deflected to the inactive position so as to move below the frogs 51 and 151 as explained above.

In order to check any tendency of the daggers 47 and 147 to now rise to the active position and stop the loom after forward motion F is well begun, a check finger 143 is keyed to the shaft 45 as shown in Figs. 4, 6 and 7 and so disposed that if the daggers 47 and 147 are in the deflected position, the top edge of check finger 143 will slide under the roller 160 on arm 161 pivoted to the frame G at 162 and held in position by a spring 163 and stop 164.

With the check finger 143 under the roller 160, the daggers 47 and 147 will be now held inactive during the remainder of the forward motion F of lay L and so permit the forearm 42 to be raised out of contact with the shuttle binder tip 40 to allowrotation of the shuttle box 30 without letting the stop motion go into action.

If these is no shuttle home in the boxes 32 and 132 when the forward motion F of lay L begins, the daggers 47 and 147 are in the active position tocatch the frogs 51 and 151 as shown in Figs. 2 and 6 and the end of the check finger 143 strikes fiush on the roller 160 pushing it back against the action ofspring 163 as shown by Fig. 6. The loom will then of course be immediately stoppedby the-motion of the frogs 51 and 151.

Frog 51 is merely. abuffer and slides back in the bearings53 and. 5'7 against the springpressure 56 on the washer 54. The nut 58 acts as a stop and the V jaw at 52 prevents slippage of the tip 48 of dagger 47 when itis once engaged.

Frog 151 as shown by Figs. 6 and 7 slides on the frame G against the action of the spring 156 to release the clutch handle by a pin 170 and pull on a brake to check the loom at once by the brake rod 171. The slot 169 in the frame limits the motion of frog 151 by the crosshead 168 which slides in it.

To throw out of action, the revolving box feeler arm tip 40, during the part of the forward movement of the lay L, I use the following parts operative by cam '70. The cam lever '72 is pivoted to the frame G at 71 and has an offset forepart '75 which has the rod 78 pivoted to its tip '76.

A spring '77 tends to raise this lever 72 and holds the roller 73 against the surface of cam '70. The connecting rod '78 is pivoted at '79 to a lever which is keyed to a shaft 81 in bearing 82 on the beam 25 of the lay L. The shaft 81 has keyed to its other end the lever 83 so that rocker levers 80 and 83 move as an integral unit which I will call a rocker arm. This lever 83 carries a disengaging link pivoted at one end to its end 84 and at its other end to the forearm 42 at 86.

It is seen that downward motion of the cam lever '72 caused by the raised cam surface 170 will draw the rod 78 down to tip lever 80 and 83 and raise the forearm 42 by the upward motion of link 85 as shown by Fig. 5.

The pivot 76 of the rod '78 on cam lever 72 must be placed near the axle 1'7 of lay L to eliminate any appreciable motion of lever 80 due to eccentricity of '76 and 1'7 during the reciprocating motion of lay L.

It should be noted that the action of cam surface 170 will be to begin to raise arm 42 after crank 13 has turned forward about 15 degrees in producing forward motion F of lay L, the arm 42 will then be raised for the next one hundred fifty degrees of motion of crank 13, and will be lowered to active position again for the last fifteen degrees on the backward part of the forward motion F. This is due to the gear ratio of gears 18 and 19 turning shaft 20 at half the speed of 11.

I claim:

1. The combination in a loom having a frame and a lay, said lay having on one side a plain shuttle box forming a single shuttle cell, and on the other side a revoluble shuttle box having a plurality of shuttle cells and means to revolve this shuttle box, picker devices arranged to pick the shuttle in the top cell of the revoluble shuttle box, and shuttle binders forming part of each shuttle cell; of a fixed reed carried by the lay; feeler mechanism including a protector rod journailed in bearings on and extending across the lay, a one piece feeler arm fixed to the protector rod and normally positioned to engage a shuttle binderon the plain side, and a two piece feeler arm including a back arm and a forearm which is pivoted thereto and is positioned to normally engage the shuttle binder in the top cell on the revoluble side, the back arm being fixed to the protector rod, and spring means to cause the feeler arms to normally engage their respective shuttle binders; two dogs each pivoted on the frame, one dog being connected to loom stopping means; two daggers each fixed to the protector rod in position to engage the dogs when neither feeler arm is pushed back by a shuttle binder; with means to move the lay back and forth and means associated therewith including a cam which revolves once for each two reciprocalmove ments of the lay, a pivoted cam lever operated by the cam, a rocker arm medially pivoted on the back arm of the two piece feeler arm, a con necting rod between one end of the rocker arm and the end of the cam lever, and a disengaging link between the foream and the other end of said rocker arm; and a spring actuated check.

arm carrying a roller and pivotedto the frame, and a check finger fixed to the protector rod in position to slip under the roller when either feeler is pushed back by a shuttle binder.

2. The combination in a loom having a frame and a lay, said lay having on one side a plain shuttle box forming a single shuttle cell, and on the other side a revoluble shuttle box having a plurality of shuttle cells and means to revolve this shuttle box, picker devices arranged to pick the shuttle in the top cell of the revoluble shuttle box, and shuttle binders forming part of each shuttle cell; of a fixed reed carried by the lay; feeler mechanism including a protector rod journalled in bearings on and extending across the lay, a one piece feeler arm fixed to the protector rod and normally positioned to engage a shuttle binder on the plain side, and a two piece feeler arm including a back arm and a forearm which is pivoted thereto and is positioned to normally engage the shuttle binder in the top cell on the frame, one dog being connected to loom stopping means; two daggers each fixed to the protector rod in position to engage the dogs when neither feeler arm is pushed back by a shuttle binder; with means to move the lay back and forth and means associated therewith to move the feeler forearm away from its shuttle binder during part of each alternate pick; and check means to hold both daggers out of engagement with their respective dogs while said forearm is disengaged;

3. The combination in a loom having a frame and a lay, said lay having on one side a plain shuttle box forming a single shuttle cell, and on the other side a revoluble shuttle box having a plurality of shuttle cells and means to revolve this shuttle box, picker devices arranged to pick the shuttle in the top cell of the revoluble shuttle box, and shuttle binders forming part of each shuttle cell; of a fixed reed carried by the lay; feeler mechanism including a protector rod journalled in bearings on and extending across the lay, a one piece feeler arm fixed to the protector rod and normally positioned to engage a shuttle binder on the plain side, and a two piece feeler arm including a back arm and a forearm which is pivoted thereto and is positioned to normally engage the shuttle binder in the top cell on the revoluble side, the back arm being fixed to the protector rod, and spring means to cause the feeler arms to normally engage their respective shuttle binders; a dog connected to loom stopping means and pivoted on the frame; a dagger fixed to the protector rod in position to engage said dog when neither feeler arm is pushed back by a shuttle binder; means to move the lay back and forth and means associated therewith to move the feeler forearm away from its shuttle binder during part of each alternate pick; and check means to hold the dagger out of engagement with its dog while said forearm is disengaged.

tle binder; a dog connected to loom stopping means and pivoted on the frame; a dagger fixed to the protector rod in position to engage said dog when neither feeler arm is pushed back by a shuttle binder; means to move the lay back and forth and means associated therewith to move the feeler forearm away from its. shuttle binder during part of each alternate pick; and check means to hold-the dagger out of engagement with its dog while said forearm is disengaged.

JOSEPH FEATHER.

Images