US2167583A - Rayon spinning machine funnel bracket - Google Patents

Description

July 25, 1939. H. J. M DERMOTT RAYON SPINNING MACHINE FUNNEL BRACKET Filed Aug. 6, 1938 7 Sheets-Sheet 1 INVENTOR HENRY JAMES MCDERMOTT 7 BY HIS ATTORNEYS July 25, 1939. I H. .1. M DERMOTT 3 RAYON SPINNING MACHINE FUNNEL BRACKET Filed Aug. 6, 1938 7 Sheets-Sheet 2 Q INVENTOR v HENRY JAMES MCDERMOTT BY HIS ATTORNEYS July 25, 1939. H. J. MCDERMOTT RAYON SPINNING MA CHINE FUNNEL BRACKET 1 Filed Aug. 6, 1958 'r Sheets- Sheet 3 f4 7? 1r l l l I R m 2 W 2 W z 1 z WM 5 w Ell T m a 7 3. j l M 1 i L Y N 3 MM HENRY JAMES MCDERMOTT BY HIS ATTORNEYS July 25, 1939. H. .1. McDER MOTT BAYON SPINNING I VIACH INE FUNNEL BRACKET Filed Aug. 6, 1938 7. Sheets -Shet 4 INVENTOR HENRY JAMES MCDERMOTT BY HIS ATTORNEYS July 25, 1939, H. J. M DERMOTT A RAYON SPINNING MACHINE FUNNEL BRACKET Filed Aug. 6, 1938 '7 Sheets-Sheet 5 INVENTQR JAMES MCDERMOTT BY HIS ATTORNEYS HENRY I y 25, H. J. MCDERMOTT 2,167,583

'RAYON SPINNING MACHINE FUNNEL BRACKET '7 Sheets-Sheet 6 Filed Aug. 6, 1938 r E: :1 l E] .34 WM .33 X9.

lNVENTOR HENRY JAMES MCDERMOTT BY HIS ATTORNEYS July 25, 1939.

H. J. MCDERMOTT 2,167,583 RAYON SPINNING MACHINE FUNNEL BRACKET Filed Aug. 6, 1938 7 Sheets-Sheet 7 INVENTOR HENRY JAMES MCDERMOTT BY HIS ATTORNEYS MMJM g breakage.

Patented July 25, 1939 PATENT OFFICE RAYON SPINNING MACHINE FUNNEL BRACKET Henry James McDermott, Prospect Park, Pa., assignor to American Viscose Corporation, Marcus Hook, Pa., a corporation of Delaware Application August s, 1938, Serial No. 223,483

leclslms. (Cl. 51-10) This invention relates to a bracket for carry-' ing the tunnel of a spinning machine adapted to make rayon yarn by the potspinning method.

In such machines the yarn is brought into the a pot through a funnel which reciprocates vertically with its supporting rails, in order to form the yarn "cake. The funnel must be put out of thek way to permit removal of the completed yarn ca e.- i The invention relates to an improved bracket which iacili tes getting the tunnel out of the way for remov oi the cake. More particularly it provides means for retracting a tunnel having a long stem without detaching the funnel from the II bracket. v

. When doiiing or removing the rayon cakei'rom the spinning pot, the present practice is to remove the funnel from the bracketand place it in a rack on the spinning machine. This is usu- N ally done by hand. Very often in this operation the tunnel isbroken. An advantage oi the novel device is that it does away with the necessity for workmen to handle the funnel in retracting it from a spinning box and thus eliminates this Mechanical means have heretofore been provided for this purpose but they have not been satisfactory. J y In the modern pot spinning. machine it is necessary to keep the pot as completely closed as 80 possible, and therefore to have the hole for the funnel as small as possible. In addition the space available iorr'movements oi the funnel bracket is quite restricted. For the relatively is long funnels now used, the prior art provides no.

satisfactory means of moving the tunnel or the bracket.

In' the accompanying drawings which form a part of the specification:

Figures 1 to 5 inclusive are side elevations showing the-novel funnel lifting bracket:

' Figure 1 shows the bracket holding a tunnel in its lowest or operating position, parts being broken away to show details;

Figure 2 shows a bracket in a position in which the funnel has been slightly elevated by the bracket;

Figure 3 shows the bracket in a more elevated position, having withdrawn the funnel from the spin p t:

Figure 4 shows the bracket in its most elevated position and holding the funnel out of the way of the spinning pot;

Figure 5, is an elevation similar to Figure 1, but on a smaller scale, showing the novel bracket and the funnel in relation to other parts of a spinning machine;

Figure 6 is a top plan view of Figure 1;

Figures 7, 8 and 9 show a modified form of the invention, parts being broken away to show de- .5 tails; Figure '1 shows the bracket in its lowest or operating position; Figure 8 shows the bracket in a position which it assumes soon after the tube oi. the tunnel has escaped from the lid; Figure 9 shows the bracket in its most elevated position 10 and holding the funnel out of the way of the spinning pot;

Figures 10, 11 and 12 show another modified form of the invention, with the parts in positions corresponding to those shown in Figs. 7, 8' and 9 15 respectively.

Further describing the embodiment oi the invention illustrated in Figures 1 to 6, the principal Parts of the novel bracket are a funnel support I l,

.a pair 01' links I! and it of unequal length and a a0 crank it. The bell crank lever l4 rocks about a pivot l5, while link I! swings on a pivot it, which may be. considered the pivot of the bracket taken as a whole.

One arm ll of crank I4 is pivoted at it to link 35 II. The other arm l9 (see Figs. 3 and!) which is illustrated as the shorter arm bell crank it, is provided with a pin 20 which cooperates with a cam on link l2. As illustrated in Figure i this is a three direction cam and is provided by guiding to walls or a slot 2| in link l2, but it is obvious that it could be provided by other suitable means.

Funnel support II, at the distal or free end of the bracket, may comprise a link between links l2 and i3. Link ll may comprise a base 86 22' on which rests a usual funnel 23, trunnions 24 which are shown as substantially in alignment with an axis of tunnel 23 (see Figs.'5 and=6): and an upwardly and rearwardly projecting boss or arm 25, to which link I3 is pivoted at 26. As it shown in Figure 1, the funnel-support II is substantially L-shaped in elevation, but the shape is optional.

Link l2, which may be considered the funnellifting link, is pivoted to link ii at 24, substan- 45 tially on a line through the center of the funnel 23, and considerably below and in front of the point 26 at which the link II, which may be considered the funnel-tilting link, is pivoted to the m funnel-supporting link II. In. other words, pivot 26 is not in the same plane as the axis 01' tunnel 23 with which pivot 24 is aligned.

The funnel-lifting element is a single link I! having a pair of arms Hgwhich receive the trunnions 24 of link II (see Fig. 6), but this arrangement is Optional.

As shown in Figures 5 and 6, the novel bracket is supported just above and to the rear of the spinning pot 28 and its cover 29, on the usual rails 34. The pivot I5 of the crank lever I4 is supported by a bracket 3|) and the pivot I5 of the funnel-lifting link I2 is supported by a bracket 3|, attached by means such as cooperating laws 32 and 33 to the rails 34 on a spinning machine.

Any suitable means such as a set screw 31 (see Figs. 1, 5 and 6) may be provided to determine the down position of the bracket. The set screw 31 in link I2 cooperates with a portion of the jaw 32 to limit the link's down position. The upper position of the link is limited by its end portion which engages the bracket 3| when it is lifted to its upper limit. This prevents the pin 20 from striking the end of the cam slot at R, as shown in Figure 4.

When the funnel 23 is in the operative or spinning position with its tube 35 reciprocating vertically through the opening 36 of the cover 29 01' the spinning pot, the bracket is in the position shown in Figures 1 and 5. As already mentioned it is desirable to have the opening 36 as small as possible, and on the other hand the tube 35 is preferably relatively long. For instance, in a de vice where the inside distance from the bottom of the box 23 to the top of its cover 29 is 7 inches, and the diameter of the opening 36 in the pot cover is only 1%; inches, a funnel having a stem 8 1% inches long from its tip to the center of the trunnion 24, for example, may be employed by using the present invention. It is to be understood that these dimensions are by way of example only, and are not intended to limit the scope of the disclosure.

When it is desired to remove the tunnel to its inoperative position clear of the spinning pot 23, the funnel mounting II is lifted causing the link l2 to pivot about the point I6. In moving from operative to inoperative position link I2 moves upward in an arcuate path counterclockwise as illustrated in these drawings. (It will be obvious that the terms clockwise" and counterclockwise" are relative terms, and that ii the machine were viewed from the opposite side, or the figures reversed, the relative motion, and thereiore the terms, would be reversed.) This motion causes a collapsing of the side of the bracket between pivots I6 and I 8. Pin 20 moves from its position at the top of slot 2| (see Figs. .1 and 5) downward along cam 2|. To remove a relatively long tube 35 of the funnel 23 from the spinning pot through the relatively small central opening 35 in the cover member, the funnel 23 must be tipped to compensate for the horizontal component or movement caused by the counterclockwise rotation of link I2. Clockwise tipping of tunnel. 23 about the pivot 24 (see Fig. 2) is eilfected during the first part of the movement by the portion :r. u

, of the cam 2|. Movement of pin 2|) downward through this portion of the cam causes the crank 14 to pivot about point I5 in a counterclockwise direction and acting through the link I3, causes the funnel mounting II to tip about the points 24 and 26 so that funnel 23 is tipped in a clockwise direction around point 24 (see Fig. 2). The next portion 3/, z of the cam 2| is concentric with I6 of the bracket, so the movement of pin 20 through the part 1', z of cam 21 does not materially afiect the movement of the funnel. During this part of the movement, tube 35 o! the funnel 23 moves in a large arc counterclockwise in the are of the link I2 around the point I6, the tube 35 below the point 24 moving forward and upward to escape from the opening 36.

By the time the pin 20 reaches the position 2, of -the cam 2|, the entire funnel has been removed from the closed pot 28 and its cover 29 (see Fig. 3). Continued movement of the bracket mounting brings pin 20 into engagement with portion 2, r of cam 2|. This tilts the bell crank I4 in a clockwise direction (Fig. 4), and acting through link I3 swings the funnel 23 in a clockwise direction about the point 24 and to a position clear of the spinning pct 28, so that cake 38 (Fig. 4) can be removed therefrom.

Thus the continuous rotation of the novel bracket in a counterclockwise direction about its supporting link II and the funnel 23 to rotate.

counterclockwise about the point I6, and simultaneously totravel about thev point 24 in a three directional movement first clockwise, then counterclockwise and finally clockwise again, before the funnel 23 comes to rest in a position (see Fig. 4) above and behind the spinning pot 28. Thus it will be seen that in Figs. 1 to 6 the crank I4 and its pin 2|), together with the cam means associated with lifting link I2, constitute control means to give the funnel 23 and the funnel support il a path of travel about the axis 24, distinct from their path of travel around the main pivot I6 of the bracket, whereby the portion of the funnel tube 35 passing out of the top of the pot is kept within the small area of the hole 36 in the t cover 29, regardless of the position of the dist 1 end of lifting link |2.

In returning the funnel to spinning position the operations and movements just described are reversed.

Figures 7, 8 and 9 show a modified form of the inventiorr, in which the novel bracket after passing through approximately the positions shown in Figures 1, 2 and 3, swings the stem 35 forwardly and upwardly out of the way of the cover 2901' the pot 28 (see Fig. 9) instead of swinging the stem 35 to the position shown in Fig. 4.

In this modification a crank I|4 rocks about a pivot H5 and there is a link 3 pivoted to the crank at II3. Crank 4 carries a pin I20 which cooperates with a'cam slot I2I associated with link II2. In moving from operative position shown in Fig. '7, to withdrawn position shown in Fig, 9, link 2 moves upward counterclockwise as illustrated in these figures. This causes the pin I20 to move from its position at the bottom of slot |2I upward along cam |2I from a to b. Clockwise tipping of funnel 23 about the pivot I24 is efiected during this part of themovement by the portion a, b of the cam slot I2I, as is perhaps best shown by Fig. 8. Further movement of link II 2 upward about the pivot point II6 causes teeth I40 associated with link 2 to mesh with teeth I carried by the portion I I9 of crank II4. This results in movement of the tube 35 of the funnel 23 counterclockwise about the pivot I24 so that after the tube has escaped from the opening 36 in the cover 29, it. swings up and forward out o! the way of the lid 29, as shown in Figures 8 and 9.

In Figure 8, f to I indicate a series of positions of the end of the funnel 35 in its path of travel from spinning position, to the withdrawn position. Corresponding positions of points I24 and I26 are shown at g to 9 and h to h respectively.

Figures 10, 11 and 12 show a further modification in which the stem 35, swings forwardly and upwardly out of the way, as it does in Figures 7, 8 and 9. 'In these figures link 2|! is provided with a modified cam 22L The embodiments of the invention shown and described are illustrative only. Other embodiments will occur to those skilled in the art.

I claim:

1. A funnel lifting bracket for a spinning machine comprising a, pair of links, and a third link for supporting a funnel and pivoted to each of said first named links, in combination with a crank also connecting said first named links, and cooperating eccentric means associated respectively with one of ,said first named. links and with an arm of said crank, to control the. path of travel of the funnel.

2. A funnel lifting bracket for spinning machine comprising in combination, funnel-supporting means, a funnel-lifting link pivoted thereto and pivoted at its other end to a support, a cam in conjunction with said funnel-lifting link, a crank cooperating with said cam. a funnel tilt-1 ing link pivoted at one end to said-funnel-supporting means and pivoted at the other end to said crank. a

3. A funnel lifting bracket comprising a pair of links, of unequal length, a pivotal support for said bracket adjacent an end of the longer link, and a connecting link pivoted adjacent the other ends of said pair of links in combination with a bell crank having an'arm pivoted-to one link of said pair and cooperating eccentric means associated respectively with the other arm of saidcrank and the other link of said pair,

4. A funnel lifting bracket comprising a pair of links of unequal length, a pivotal support for said bracket adjacent an end of one of said links, and a connecting link pivoted adjacent the other ends of said pair of links in combination-with a bell crank lever having arms of unequal length and having its longer arm pivoted to the shorter of said pair of links, and cooperating eccentric means associated respectively with the other arm of said crank and the other link of said pair,

5. A funnel lifting bracket comprising a pair of links, a pivotal support for said bracket adjacent an end of one of said links, and a connecting link pivoted adjacent the other ends of said pair of links, said connecting link having a pivot point with one of said pair of links substantially on an axis of said funnel, and having its pivot with the other link outside of said axis, in combination with a crank pivoted to one of said pair of links, and cooperating eccentric means associated re spectively with said crank and the other link of said pair.

6. A funnel lifting bracket for spinning machine comprising in combination, a substantially L-shaped funnel-support having a base and an arm, a funnel lifting link pivoted adjacent one end to said support and being pivotaily supported at its otherend, a slotted cam in conjunction with said funnel lifting-link, a crank cooper-V.

ating with said cam, and a funnel tilting link pivoted at one end to the arm of said funnel support and pivoted at the other end to said crank.

7. A funnel lifting bracket comprising a support, a funnel-lifting means pivoting upon said support and adapted to lift a funnel counterclockwise about said support, in combination with means for simultaneously moving the funnel alternately clockwise and counterclockwise about an axis, said second means comprising funnelbetween said funnel-lifting means and said funnel-tilting means,=. cam means associated with .said funnel-lifting means..a crank pivoted to said funnel-tilting means and having means cooperating with said cam.

8.- In a rayon spinning machine having a guide funnel, a spinning pot and an apertured cover for said pot, a funnel bracket comprising funnel-lifting means adapted to lift a funnel from the covered pot counterclockwise in the arc oftsaid means, in combination with means for simultaneously moving the funnel alternately clockwise and counterclockwise about another axis substantially on an axis of the funnel.

9. In a rayon spinning machine having a guide funnel, a spinning pot and an apertured cover for said pot the aperture being of small diameter relative to the length of the funnel, a funnel bracket comprising funnel-lifting means adapted to lift a funnel counterclockwise in the arc of said means, in combinatiton with means for simultaneously moving the funnel about another axis, alternately clockwise and then counterclockwise to withdraw the funnel from the aperture of the closed spinning pot.

. 10. In a rayon spinning machine having a guide funnel, aspinning pot and an apertured cover for said pot the aperture being of small diameter relative to the length of the funnel, a funnel bracket comprising funnel-lifting means adaptedto lift a funnel counterclockwise in the arc of said means, in combination with means for simultaneously moving the funnel about anarc of said means, in combination with means for simultaneously moving the funnel about another axis, alternately clockwise and then counter-.

clockwiselto withdraw. the funnel from the aperwise again to withdraw the funnel to a position clear of the spinning pot.

12'. A funnel lifting bracket for a rayon pot spinning machine comprising a pair of links of unequal length and a third link carrying the funneiand pivoted to each of said first named ture of the closed spinning pot, and then clocklinks, in combination with a crank connected tosaid first named links, and cooperating eccentric "means associated respectively with one of said first named links'andwith said crank to control the angle of the funnel.

'13. A funnel bracket for rayon pot spinning machinery comprising a lifting link having a fixed pivot atone end, the funnel being swivelly carried on the other end in combination with collapsing means controlled by said link adapted to tilt the, funnel whereby the portion of the funnel passing out of the top of the pot is kept within a small area regardless of the position of the end of the link.

14. A funnel bracket for rayon pot spinning machinerycomprising a lifting link pivotailymounted at one end, the funnel being swivelly carried'on the other end, in combination with means separately mounted but actuated by said link adapted to tilt the funnel both ways from the and tilting means pivoted to said supporting link,

incombination with eccentric means connecting said tilting and lifting means, whereby the portion of the tunnel passing out of the top of the pot is kept within a small area regardless oiflghe posititon of the distal end of the lifting 1i 16. In a rayon spinning machine, a funnel litting bracket comprising a pair of links and means for swivelly supporting a tunnel at one end of said links, in combination with means for varying the distance between the other ends of said links in varying posittions 0! said bracket.

HENRY JAMES MCDERMUIT.

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