Патент USA US2111926код для вставки
L‘?: 2, 1938. R _ Ev 2,111,926 MACHINE Eon DRAW FLA , wooL, ‘AND OTHER FIBERS FOR FORMING SLIVERS OR YARN Filed Sept. 21, 19:56 ‘ 2 Sheets-Sheet 1 ATT’ORNEY March 22, was. R. v. EVES 4 2,111,926 _MACHINE FOR DRAWING FLAX, WOOL, AND OTHER \ FIBERS FOR FORMING SLIVERS OR YARN Filed Sept. 21, 1936 2 Sheets—Sheet 2 a 8 2 2 2 “2 A I A E E K '1 K Fig.5‘? 1‘ k W@ 1 ,_ -M ' w V VMi t T . W‘ Z Z Xv __6 U3‘ O t2 INVENTOR ' ATTORNEY 2,111,926 Patented Mar. 22, 1938 UNl'E All/N r fore-ice srArE-s 2,111,926 . MACHINE FOR‘DRAWING FLAX, WOOL, AND OTHER ‘FIBERS FOE FORIVHNG SLIVERS OR YARN Reginald Valentine Eves,‘Belfast, Northern Ire land, assignor to J. & T. M.’Greeves Limited, Belfast, Northern Ireland ' Application September 21,1936, Serial No.<101,817 :In Great Britain October 4, 1935 ,(Cl, 19-135) 12 Claims. pressure to, and the controlling the position of, Figs. 4, 4a and 4b: are details of an alternative method of swinging the gib. pressing rollers in machines for drawing ?ax, Figs. 5 and 5a show a general arrangement of The invention relates to the application of ' wool, and other ?bers for forming sliver or yarn, ' gib, rollers, spring wire and pressure appliance. I The machine is constructed with a positively v; driven main roller I and pressing rollers E each of the type in which ?ber is drafted between a positively driven main-rollen'and pressing rollers riding on the main roller, the pressing roller be _ having two bosses 2 mounted on a single arbor ing constructed of two. bosses mounted on a short riding on the main roller I and driven by sur face contact, the bosses 2 being generally hard axle and weight being applied thereto by a swing 10 ing arm or gib» pivoted adjacent to and resting wood, the peripheries of which are trued up peri- . ‘ upon the axle between the bosses of the pressing odically as wear takes place. The bosses may however be covered with leather, cork, or other roller. ' The objects of the invention are to control the material, their‘ diameter being practically con working position of the pressing rollers or bosses stant. Pressure is applied to the pressing rollers ' 15 more simply and accurately, to secure a rigid by a swinging arm or gib A applied to the arbor ‘15 1 locking of the swinging gib with the-axle bush between the bosses ~2. , The swinging gib A is constructed with a sup thereby avoiding extended axle ends beyond the bosses, to enable pairs of pressing rollers tobe porting or carrier-bracket a by which it is mount ed. on a rod or pivot B to swing in a plane vertica to the axis of the pressing roller E the axis of _ . placed much more closely together and to enable 20 the operative to change the rollers more easily than with any of the known types of spring or weight loaded rollers and swinging gibs. The invention comprises a swinging gib so constructed and pivoted that it is free ‘to-swing in one plane vertical to the axis of the pressing 01 the rod or pivot B being parallel with that of 20 the ‘main roller I. The supporting carrier bracket (1. may also be formed with a lug a3 to which is pivoted an arm A2 to carry a top dead rubber A3. 25 In the form shown in Figs. 1, 3 and 5 the sup :porting or carrier bracket a is formed with two sockets or bearings a1 a2 and the end of the gib A with a pivot C at one end. The bearing (11 cm braces the pivot or rod B and the bearing a2.30 receives the pivot C of the gib A both being held roller ‘and to the axis of its pivot, to rotate or :rock about an axis'at right angles thereto and approximately coincident with its longitudinal axis and also will engage and lock itself rigidly 90 to the bearing bush of the axle of the pressing roller and maintain the line of contact between in their respective position by collars b a4. The the rollers parallel with the longitudinal axis of the main roller, without the aid of other con trolling members. J . gib A is free to swing in a plane about the longi tudinal axis of the pivot B and to rotate or swing slightly about the axis of the pivot C. - ' The invention further comprises an arbor for In the form shown in Figs. 4, 4a, 4b the sup: 35. porting or carrier bracket a is formed integral bearings disposed relatively far apart, a non-" with the end of the'gib A to swing or pivot on rotary grooved housing for the ball hearings to the rod B and with a knife edge 01 working in -a_ "V groove in a collar 02 freeto revolve on, but. 40 receive the swinging gib, a pair of cupped orre the bosses of the‘pressing roller comprising a ’ short non-projecting axle provided with two ball cannot move sidewise on the pivot rod B. The the ends of the axles and furthera spring, com~ guides LL on the rod B are slotted instead of pressed in a cartridge or container, a-spring wire 7 being close ?tting holes to allow the arm A to - ,cessed'washers to carry each boss and nuts on with a rack or ratchet face and a pawl con rock slightly about the knife edge. nected with the spring to apply through the swinging gib pressure to thepressing roller and The gib A is thus free to swing in a plane 45 about the longitudinal axis of the pivot B and to rotate orswing slightly about the transverse means to compress the spring. » v The invention will be fully described with ref erence to the accompanying drawings in which:Figs. ,1,‘ 1a and ‘1b are side elevations of the swinging gib or arm in different positions. Fig. 2'is a longitudinal section of axle and pressing roller, assembly. , ' 7 Figs. 3 and 3a are details of the gib shown in Fig. 1. r ‘ ' ‘ ' _ axis of the pivot B. Either of these forms permits the tilting of the axle of the pressing roller E to accommodate any Want of truth or irregularity of the faces of the ‘bosses 2 of the pressing roller E, or any variation of thickness of sliver, to prevent undue strain or breakage in the event of a lap forming, vand to ' allow the pressings perfect accommodation to ‘555 2 2,111,926 follow the deflection of the roller E under its load. The swinging gib A is constructed with two wedge shaped projections H which engage with and lock ?rmly into a circular groove 9 of angular cross section in the housing G of the arbor of the pressing roller E (see Fig. 2). The arbor of the pressing roller E is thereby held rigidly in N which is ?xed to the handle T compresses the spring M through the medium of the rods V and the plates W W1. The pawl K1 transmits the load of the spring M through the spring wire K to the wood rollers E. A plate Z placed between the plates M1 and one plane in relation to the main roller I and W1 acts as an indicator showing whether the while it holds the ball bearing housing G of the 10 axle ?rmly, yet it can be quickly and easily re is 01f, plate Z is held tightly between the plates leased. The construction of the gib A and its pivots or supports B and C is such that no movement of the pair of bosses 2 of the pressing rollers E 15 is possible in a direction parallel with the axis of the main roller l of the machine, but gives perfect freedom of motion where needed by al lowing the axle of the bosses to be tilted. Referring to Fig. 2 the ‘axle D on which the 20 two bosses 2 of the pressing rollers E are se cured is screw threaded at each end and pro vided with two ball bearings M placed as far apart as possible to secure accurate alignment of the axle. The aperture through the centre :25 of the bosses 2 is sufficiently large that the ball bearings M and their housing G may be dis posed inside them, cupped or recessed washers R are ?tted into the central apertures of the bosses 2 and nuts S are applied to the screwed '30 ends of the axle D. By tightening up these nuts everything is held in place and the bosses 2 securely held to rotate with the axle D which is free to rotate within the housing G. By this construction any projection of the ends of the axle D beyond the bosses 2 is avoided and en ables the space a: (see Fig. 5a) between pairs of rollers E to be reduced as much as desired. The housing G so arranged provides a lap guard to prevent ?bers lapping around the axle D. The advantage of this type of ball bearing arbor for pressing rollers is that both bosses 2 are fast on the axle and turn together with it, one boss helping the other to revolve. Many rollers are used with a non-rotating axle with ball bearings in the body of each boss, but such roll ers have the disadvantage that if the sliver under one boss is momentarily hard to draw, it gets no help in turning from its fellow boss, on the axle. 50 Referring to Figs. 5 and 5a pressure is applied to the axle of the pressing roller E through a spring wire K suspended from the gib or arm A by a charged spring M compressed in a contain er. ‘The spring M has a long stroke and is com 55 pressed to working load between two plates W, W1 by bolts or rods V. A plate Ml takes the reaction of the spring N and to it is affixed a sleeve Y to the head of which a pawl K1 is pivoted. The spring wire 60 K at its lower face is formed with a rack or tion just beyond the dead centre line. The pin spring pressure is on or oif. When the pressure W1 and M1 but becomes loose when the pres sure is on. The pawl K1 is so weighted that it prevents the spring wire K from dropping when it is taken oif the end of the gib A for the re moval of a roller. If the replaced roller has 15 bosses of smaller diameter the spring wire K can be easily pushed down to the next ratchet tooth k. The handle T is detachable, ?tting into a socket t and formed with a groove 251 to engage a quadrant guide t2 to prevent it being removed until the pin N is over the dead centre and when the full pressure is on the roller E the handle will fall out of its socket if not taken away. What I claim as my invention and desire to protect by Letters Patent is:— 1. In a machine for drawing ?ax, wool and other ?bers of the type referred to the combi nation with the main roller and the pressing roller of a pivot rod parallel with the main roller upon which to mount a swinging gib, a swinging gib, pivotal means applied to the pivot rod Where by the gib may swing in a plane vertical to the longitudinal axis of the main roller, pivotal means at the rear end of the gib whereby it may also rock about its longitudinal axis and means at ‘I the forward end of the gib by which it can lock itself with a bearing bush in the pressing roller to maintain the line of contact between the roll ers parallel with the longitudinal axis of the main roller. 40 2. In a machine for drawing ?ax, wool and other ?bers of the type referred to the combina tion with the main roller and the pressing roller of a pivot rod parallel with the main roller upon which to mount a swinging gib, a. swinging gib, pivotal means applied to the pivot rod whereby the gib may swing in a vertical plane, pivotal means at the rear end of the gib whereby it may also rock approximately about its longitudinal axis, and means at its forward end by which the swinging gib can lock itself with a bearing bush in the pressing roller to maintain the line of contact between the rollers parallel with the longitudinal axis of the main roller. 3. In a machine for drawing ?ax, wool and other ?bers of the type referred to the combina tion with a positively driven main roller, a press ing roller riding on the main roller and a swing ing gib for applying pressure to and controlling the position of the pressing roller, of a pivot rod 60 mounted parallel with the main roller, a swing ratchet teeth It with which the pawl K1 engages to apply pressure to the spring wire and gib A. When the pressure has to be released from the rollers the casing or container of the spring M will prevent it extending. The lower plate W1 is formed with an exten swinging gib ?tted into the socket of the swing ing bracket within which it is free to rock about its longitudinal axis. sion member 10 formed with a hook to be engaged by a crank pin N on a lever T pivoted at u which 4. In a machine in which ?ber is drafted be tween a positively driven main roller and a press 70 having a short stroke is employed to pull down one element of the casing, thus putting the full working pressure of the spring M on the bosses 2 of the pressing roller E with small ex penditure of energy. To apply the pressure the 75 handle T pivoted at u is depressed to a posi ing bracket mounted on the pivot rod formed with a socket, a journal on the rear end of the ing roller riding on the said main roller, the combination of a swinging gib for applying pres sure to the pressing roller, a swinging bracket ?tted to the rear end of the swinging gib, a pivot rod on which the swinging bracket is mounted and pivotal means by which the swing 75 3 2,111,926 ping gib is connected to the said bracket to rock approximately about its longitudinal axis. 5. A swinging gib for applying pressure to the pressing roller of a machine for drafting ?ax; wool and other ?bers comprising in its construc tion an arm, a pivotal journal at its rear end, and a swinging carrier bracket formed with two sockets at right angles to one another, one socket to receive and hold the pivotal end of the arm to 10 permit the gib to rock about its longitudinal axis and a pivot rod upon which the other socket is mounted to permit the gib to swing in a vertical plane and to rock slightly about an axis at'right angles thereto. 15 6. A swinging gib for applying pressure to the pressing roller of a machine for drawing ?ax, wool and other ?bers comprising an arm, a piv otal journal formed at the rear end of the said arm, a supporting carrier bracket formed with 20 two bearing sockets at right angles to one another one to embrace a pivot rod parallel to the axis of the rollers and the other to receive the pivot on the end of the gib arm whereby the gib is free to swing in a plane vertical'to the axis of the 25 pressing roller and to, rock slightly about an axis approximately coincident with its longitudinal axis. '7. A swinging gib comprising an arm with a piv otal journal at its rear end, a swinging carrier 30 bracket with two sockets at right angles to one another into one of which the pivotal journal of the arm is ?tted and a pivot rod on which the other socket is mounted and locking projections at the forward end of the arm to engage the 35 bearing bush of a top pressing roller. 8. A swinging gib as in claim 1 comprising in its construction an arm, a supporting carrier bracket formed integral therewith at its rear end with a knife edge upon which it may rock in com bination with a pivot rod, and a collar with V groove on the pivot rod in which the knife edge of the bracket engages, whereby the gib is free, to swing in a plane vertical to the axis of the main roller and to rock slightly at right angles thereto approximately about its longitudinal axis. 9. In a:machine as in claim 1 a pressing roller having two bosses and an arbor comprising a short non-projecting axle, two ball bearings there on disposed relatively far apart, a non-rotary 10 grooved housing for the ball bearings, a pair of cupped recessed washers mounted on the arbor to carry each boss, and nuts on the ends of the axle to secure the cupped washers and the in side races of the ball bearings fast to the axle. 10. A swinging gib as in claim 1 constructed with two wedge shaped projections on its for ward end to engage and lock ?rmly into a bear ing bush of the arbor of the pressing roller. 11. In a machine as in claim 1 the combination with the swinging gib of means to apply pres sure thereto comprising a spring wire depending therefrom provided with ratchet teeth, a spring compressed within a container, a pawl carried by the spring container to engage the teeth of the 25 spring wire, and means to draw down the spring and apply the pressure of the spring to the spring wire. 12. In a machine as in claim 1 the combination with the swinging gib of means to apply pres 30 sure thereto comprising a spring wire suspended therefrom with ratchet teeth, a spring, plates between which the spring'is compressed, a pawl carried thereby to engage the teeth of the spring wire, a handle and pin to engage a projection on 35 the lower spring plate to draw down the spring and apply the pressure of the spring to the spring wire. REGINALD VALENTINE EVES.