US2802366A - Slippage reducing pulley - Google Patents

Slippage reducing pulley Download PDF

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US2802366A
US2802366A US409987A US40998754A US2802366A US 2802366 A US2802366 A US 2802366A US 409987 A US409987 A US 409987A US 40998754 A US40998754 A US 40998754A US 2802366 A US2802366 A US 2802366A
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guiding
pulley
face
portions
faces
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Borner Christian
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Akzona Inc
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American Enka Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F16H55/50—Features essential to rope pulleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B65H51/06—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate singly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/14—Pulleys, rollers, or rotary bars
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
    • D01D10/0445—Supporting filaments or the like during their treatment while in continuous movement using rollers with mutually inclined axes
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • D02J1/226—Surface characteristics of guiding or stretching organs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to pulleys, and more particularly to a slippage reducing or preventing divided roller or pulley for guiding a filament, thread or rope along a been wound several times around the pulley.
  • the present invention mainly consists in a pulley having an annular peripheral face and comprising two sets of circumferentially spaced guiding means on the annular peripheral face, the guiding means of one of the sets being arranged staggered relative to the'guiding means of the other of the sets, the guiding 2,802,366 Patented Aug. 13,1957
  • each set of guiding means having guiding faces for guiding a flexible elongated means, the guiding faces of each set of guiding means projecting alternately in opposite axial directions into the spaces between the guiding means of the other set of guiding means, and a set of circumferentially spaced radially projecting face portions on the annular peripheral face, each of the radially projecting face portions being located circumferentially spaced from and intermediate the guiding faces of adjacent guiding means of the two sets of guiding means and adapted to support the flexible elongated means.
  • the pulley consists of two coaxial pulley discs, and means are provided for guiding at least one of the pulley discs for movement in axial direction toward and away from the other pulley disc whereby the guiding faces of one pulley disc project into opposite spaces be tween the guiding faces of the other pulley disc to different degrees for adjusting the deflection of a flexible rope or thread guided between the guiding faces and supported by the radially projecting face portions.
  • the present invention consists in a pulley formed with an annular wavy groove having a plurality of spaced crest portions alternately projecting in opposite directions, the groove having an annular bottom face including spaced projecting bottom face portions, each of the projecting bottom face portions being located intermediate and spaced from two adjacent crest portions, the groove having an outwardly flaring and widening cross-section.
  • roller or pulley permits in a very surprising manner a slippage-free drive which may be applied to transmissions employing ropes, as Well as for the transport or stretching of natural or newly spun artificial fibers.
  • the width of the wavy groove according to the present invention should be adapted to the thickness of the rope or filament located therein, or to the titer of the transported filament or synthetic fiber.
  • the groove must be so dimensioned as to hold the running filament or thread without clamping or snagging.
  • the pulley according to the present invention consists of acid-resistant material, such as glass or porcelain.
  • the pulley consists of two coaxial pulley discs which are provided with axially projecting claws which interengage in a manner similar to a claw coupling. Means are provided for determining the axial spacing of the two pulley discs whereby the deflection of the flexible rope or thread can be changed.
  • Fig. l is an isometric View of a pulley according to: the present invention.
  • Fig. 2 is a fragmentary cross-sectional view on line 2-2 in Fig. 3;
  • Fig. 3 is an enlarged detail of the periphery of a pulley according to the present invention.
  • Fig. 4 is a fragmentary cross-sectional view on line: '4-4 in Fig. 3;
  • Fig. 5 is a developed sectional view taken in longitudinal direction of the groove on line 55 in Fig. 3;
  • Fig. 6 is an isometric fragmentary sectional view taken on line 55 in Fig. 3;
  • Fig. 7 is an isometric View of a pulley consisting of two separable pulley discs; I
  • Fig. 8 is a detail of the periphery of a pulley according to Fig. 7;
  • Fig.9 is a cross-sectional view on line 99 in Fig. 8;
  • Fig. 10 is a cross-sectional view on line 1010 in Fig. 8;
  • Fig. 11 is a sectional View taken in peripheral direction along a rope on line 11-11 in Fig. 8;
  • Figs. 12,1211 and 12b are cross-sectional views taken on lines 1212, 12a12q, and 12b12b, respectively,
  • Figsf1 3, 13a and 13b; and Figs. 13, 13a and 13b are plan views of details.
  • the wavy groove 2 in the pulley or roller 6 has an outwardly flaring cross-section as can be best seen in Figs. 2 and 4, and is bounded by lateral faces 3 and 4 which have alternately arranged projecting and receding portions.
  • the projecting portions 3a of the lateral faces 3 are located opposite.
  • the receding portions 4b of the other lateral face 4 while the projecting portions 4a are located opposite the receding portions 312. It is apparent that the wavy groove has crest portions which alternately project in opposite directions.
  • a filament, thread, or rope 1 is guided on the bottom face of the wavy groove 2 and alternately abuts on the projecting portions 4a and 3a of the lateral faces of the groove due to the tension of the filament.
  • the bottom face 5 of the groove is not cylindrical with respect to the axis of the pulley, but includes spaced radially projecting bottom face portions Sa which are located intermediate the crest portions of the wavy groove, and in other words intermediate the projecting face portions 3a and 4a of the lateral faces 3 and 4.
  • the projecting bottom face portions 5a are each spaced a substantial distance from the crests 3a and 4a, and each of these projecting bottom face portions 5a has in a circumferential direction a dimension which is substantially smaller than the. distance between each crest 4a and the succeeding crest 3a. Furthermore, as is evident from Figs. 2 and 3, some of the projecting bottom face portions 5a extend from the lateral face 4 toward the lateral face 3 and some of theseprojecting bottom face portions 5a extend from the lateral face3 toward the lateral face 4, the series of projecting bottom face portions 5a alternately extending from the lateral faces 3 and 4. As may be seen from Fig. 2, the projecting.
  • bottom face portion 5a which extends from the face 4 toward the face 3 has an outer convex face which is directed toward the face 3 and which approaches the bottom of the groove as it approaches the face 3.
  • the projecting bottom face portions 5a which extend from the face.3 toward the face 4 have an outer convex surface directed toward the face 4 and curved downwardly from the face 3 toward the bottom of the groove as they approach the face 4.
  • the filament which is guided in the wavy groove is, consecutively engaged by a projection 4a, by a projecting bottom face portion 5a, and by a projection 3a.
  • the filament is spaced from the bottom face of the groove, while it is supported on the projecting bottom face portions 511 at points in which it does not engage the lateral faces of the wavy groove.
  • the filament, or rope is held on the projections 3a andAa, respectively with an increased friction, while any clamping, snagging or catching of the filament is prevented by the fact that it does not touch the bottom face of the groove at the points at which it is laterally supported by the projections 3a and 4a.
  • the filament is frictionally engaged by the three face's bounding the groove so that it runs in the groove without having any slippage.
  • the wavy shape of the groove corresponds substantially to a sine curve, and it will be understood that the radius of curvature of the projections 3a and 4a must be adapted to the properties of the filament, thread, or rope which is driven.
  • a harder and stifiier material requires a greater radius of curvature, while on the other hand a softer material requires a smaller radius of curvature for slippage-free run.
  • a preferred embodiment of the present invention provides a pulley consisting of two pulley discs which are arranged movable in axial direction for changing the sinus-shaped path of the rope or filament.
  • the modified pulley consists of two coaxial pulley discs 6a and 6b which are clamped to each other by attaching means '7 which are illustrated to be bolt and nut means. It will be apparent that other attaching means may be provided for holding the pulley discs together.
  • Each pulley disc is provided with fingers, the pulley disc 6a having the fingers 11, and the pulley disc 6b having the fingers 10.
  • the fingers 10 and 11 interdigitate as best seen in Fig. 8 so that tangential movement of the two pulley discs relative to each other is impossible.
  • the receding portions 12 opposite the projecting portions 13 do not follow the curvature of the projecting portions 13, as in the embodiment shown in Fig. 3. Consequently,the projections 13 on the pulley disc 6b, and the projections 14 on the pulley disc 6a constitute two sets of circumferentially spaced guiding means having guiding faces 13a and 14a, respectively, for guiding the filament 15.
  • the inwardly located guiding face end portions 1311, 14a project into the spaces between the guiding means 14 and 13, whereas the outwardly located face end portions 13"a, 14"a are located on both sides of plane 60.
  • radially projecting face portions 16 or supporting means having circumferentially spaced supported faces are provided for supporting the filament 15.
  • Each of the projecting face portions 16 is partly formed by a projection or supporting face 16a on the pulley disc 6a and partly formed by a projection or supporting face 16b on the pulley disc 6b.
  • the thread 15 is supported in the axial planes in which the fingers 11 engage the fingers 10. Therefore the edges of the projections 16a and 16b are rounded so that the thread of filament does not engage the edges of the fingers, which is particularly advisable when great forces are transferred to the filament since a certain slippage due to stretching of the filament is unavoidable.
  • Figs. 12, 12a, 12b, 13, 13a, and 13b illustrate an arrangement according to which the axial distance between the pulley discs 6a and 6b is adjusted by inserting spacing annular members 17, as shown in Figs. 12a and 13a; or 17a, as shown in Figs. 12b and 13b, respectively.
  • the projections 13 and 14 overlap most, since no spacing member 17 is provided.
  • Figs. 12a and b
  • the coaxial pulley discs 6a and 6b each have claw means 10, 11, respectively, as shown in Fig. 8, which project each toward the other of the discs and are interengaged with each other for guiding the discs for axial movementrelative to each other.
  • the discs have pe eral wavy groove having an outwardly flaring and widening'cross-section.
  • Portions 13 and 14 each have outwardly flaring lateral face portions 13a and 14a, respectively, which extend transverse to the pulley axis and bound the groove, as shown in Figs. 13, 13a and 13b.
  • Each of the lateral face portions 13a, 14a has radially spaced inner and outer guiding face portions 13a, 13"a and 14a, 14"a, the inner guiding face portions 13a and 14'aoverlapping to varied extents as shown in Figs. 12, 12a and 13a, depending on the presence or absence of a spacing means 17, as seen in Figs. 13 and 1351. In Figs. 12b and 13b, a larger spacing means 17a is shown decreasing the overlap.
  • the groove is also bounded by an annular bottom face 16 which is here shown as being formed from the circumferentially spaced bottom face portions 16a and 16b projecting radially from portions 14 and 13, respectively.
  • Each of the portions 16a, 16b extends circumferentially through a distance substantially smaller than the distance between each guiding face of one disc and the next guiding face of the other disc and is spaced circumferentially a. substantial distance from and intermediate adjacent projecting guiding face portions.
  • the pulley or roller according to the present invention permits a slippage-free run of the filament without requiring several loops, the filament or rope can be highly tensioned without slipping.
  • the newly spun, or treated fiber can be guided by a roller according to the present invention, and it is possible to stretch the fiber by the use of grooved rollers according to the present invention having different diameters, and different peripheral speeds, respectively, without damaging or breaking the fiber since the groove according to the present invention supports the fiber without snagging.
  • a thread running over a roller according to the present invention can be stretched in a very convenient manner while being steamed, dried, or chemically treated.
  • a pulley according to the present invention is employed in transmissions, a single loop of a rope assures a reliable transmission of force without requiring guide rollers or other tensioning means.
  • a pulley formed with an annual wavy groove laterally bounded by a pair of opposite annular lateral faces, each of said lateral faces having, alternately arranged axially projecting and receding face portions, the projecting face portions of one of said lateral faces being located opposite the receding face portions of the other lateral face, said groove being also bounded by mannular bottom face including radially projecting bottom face portions, each of said projecting bottom fac' portions,
  • a pulley formed with an annular peripheral wavy groove, said groove having an outwardly flaring and.
  • each of said lateral faces having alternately arranged axially projecting and receding face portions, the projecting face portions of one of said lateral faces being located opposite the receding face portions of the other lateral face, said groove being also bounded by an annular bottom face including radially projecting bottom face portions, each of said projecting bottom face portions being located intermediate and spaced a substantial distance from adjacent projecting face portions of said pair of lateral faces.
  • a pulley formed with an annual peripheral wavy groove said groove having an outwardly flaring and widening cross-section and being laterally bounded by a pair of opposite annular lateral faces extending transverse to the pulley axis, each of said lateral faces hav ing alternately arranged axially projecting and receding face portions and extending substantially corresponding to a sinus function, the projecting face portions of one of said lateral faces being located opposite the receding face portions of the other lateral face, said groove being also bounded by an annular bottom face including ra-- dially projecting bottom face portions, each of said pro-- jecting bottom face portions being located intermediate and spaced a substantial distance from adjacent projecting face portions of said pair of lateral faces.
  • a pulley having an annular peripheral face and comprising two sets of circumferentially spaced guiding means on said annular peripheral face, the guiding means' of one of said sets being arranged staggered relative to the guiding means of the other of said sets, said guiding means having guiding faces for guiding a flexible eiongated means, the guiding faces of each set of guiding means projecting alternately in opposite axial directions into the spaces between the guiding means of the other set of guiding means; and a set of circumferentially spaced radially projecting face portions on said annular peripheral face, each of said radially projecting face portions extending circumferentially through a distance substantially smaller than the distance between each guiding face of one set and the next guiding face of the other set, and being located circumferentially spaced a substantial distance from and intermediate the guiding faces of adjacent guiding means of said two sets of guiding means and adapted to support the flexible elongated means.
  • a pulley having an annular peripheral face and comprising two sets of circumferentially spaced guiding means on said annular peripheral face, the guiding means of one of said sets being arranged staggered relative to the guiding means of the other of said sets, said guiding means having guiding faces for guiding a flexible elongated means, the guiding faces of each set of guiding means being composed of guiding face portions located inwardly in radial direction and projecting alternately in opposite axial directions into the spaces between the guiding means of the other set of guiding means and of outer face portions located outwardly in radial direction and located on opposite sides and spaced from a plane passing through said annular peripheral face normal to the axis of said pulley; means supporting at least one of said sets of guiding means for movement in axial direction toward and away from the other of said sets of guiding means; and a set of circumferentially spaced radially projecting face portions on said annular peripheral face, each of said radially projecting face portions extending circumferentially through a
  • each r a guiding face of one. set and the next guiding facev of the other, set, and being located circumferentially spaced a substantial distance from and intermediate the guiding faces of adjacent guiding means of said two sets of guiding means and adapted to support the flexible elongated means.
  • a pulley comprising at least two coaxial pulley discs, each. of said pulley discs having one set of cir- Cumferentially spaced guiding means on the periphery thereof, the guiding means of one of said sets being arranged staggered relative to the guiding means of the other of said sets, said guiding means having guiding faces for guiding a flexible elongated means, said guiding faces having inner and outer ends in radial direction, the guiding faces of each set of guiding means projecting alternately in opposite axial directions into the spaces between the guiding means of the other set of guiding means; a set of circumferentially spaced radially projecting face portions on at least one of said pulley discs, said, radially projecting face portions extending circumferentially through a distance substantially smaller than the, distance between each guiding face of one set and the next guiding face of the other set, and being located circumferentially spaced a substantial distance from, and intermediate the guiding faces of adjacent guiding means of said two sets
  • a pulley comprising at least two coaxial pulley discs, each of said pulley discs having one set of circumferentially spaced guiding means on the periphery thereof, the guiding means of one of said sets being arranged staggered relative to the guiding means of the other of said sets, said guiding means having guiding faces for guiding a flexible elongated means, said guiding faces having inner and outer ends in radial direction, the guiding faces of each set of guiding means projecting alternately in opposite axial directions into the spaces between the guiding means of the other set of guiding means; a set of circumferentially spaced radially projecting face portions on at least one of said pulley discs,
  • said radially projecting face portions extending circumferentially through a distance substantially smaller than the distance between each guiding face of one set and the, next guiding face of the other set, and being located circumferentially spaced a substantial distance from, and I intermediate the guiding faces of adjacent guiding means of said two sets of guiding means, said face portions being located inwardly ofsaid outer ends of said guiding faces and outwardly of said inner ends of said guiding faces and adapted to support the flexible elongated means; means guiding said pulley discs for axial movement relative to each other; a spacing member located between said pulley discs for spacing the same in axial direction so that said guiding faces of the guiding means on one of said pulley discs project into the spaces between the guiding means on the other of said pulley discs for a predetermined distance; and attaching means for attaching said pulley discs to each other.
  • a pulley comprising at least two coaxial pulley discs, each of said pulley discs having one set of circumferentially spaced guiding means on the periphery thereof, the guiding means of one of said sets being arranged staggered relative to the guiding means of the other of said sets, said guiding means having guiding faces for guiding a flexible elongated means, said guiding faces having inner and outer ends in radial direction, the guiding faces of each set of guiding means projecting alternately in opposite axial directions into the spaces between the guiding means of the other set of guiding means; a set of circumferentially spaced radially projecting-face portions on at least one of said pulley discs,
  • a pulley comprising at least two coaxial pulley discs, each of said pulley discs having finger means projecting in axial direction toward the other of said pulley discs and interengaged with the finger means of the samefor guiding said pulley discs for axial movement relative to each other, each of said pulley discs having one set of circumferentially spaced guiding means on the periphery thereof, the guiding means of one of said sets being arranged staggered relative to the guiding means of the other of said sets, said guiding means having guiding faces for guiding a flexible elongated means, said guiding faces having inner and outer ends in radial direction, the guiding faces of each set of guiding means projecting alternately in opposite axial directions into the spaces between the guiding means of the other set of guiding means; a set of circumferentially spaced radially projecting face portions on at least one of said pulley discs, said radially projecting face portions. extending circumferentially through a distance substantially smaller than the
  • said face portions being located inwardly of said outer ends of said guiding faces and outwardly of said'inner ends of said guiding faces and adapted to support the flexible elongated means; a spacing member located be tween said pulley discs for spacing the same in axial direction; and attaching means for attaching said pulley discs to each other.
  • a pulley comprising two coaxial pulley discs, each of said pulley discs having a peripheral portion defining with the peripheral portion of the other pulley disc an annular peripheral wavy groove on the periphery of the pulley, said groove having an outwardly flaring and widening cross-section, said peripheral portions having a pair of opposite annular lateral faces extending trans verse tothe pulley axis and bounding said groove, each of said lateral faces being located on one of said pulley discs and having a set of circumferentially spaced. guiding face portions, the guiding face portions of each set projecting into the spaces between the guiding face portions of the other set, said groove being also bounded.
  • annular bottom face at least one of said peripheral portions including radially projecting circumferentially spaced bottom face portions, each of said projecting bottom face portions extending circumferentially through a distance substantially smaller than the distance between each guiding face of one set and the next guiding face of the other set, and being located circumferentially spaced a substantial distance from and intermediate adjacent projecting guiding face portions; and attaching,
  • a pulley comprising two coaxial pulley discs, each of said pulley discs having a peripheral portion defining with the peripheral portion of the other pulley disc an annular peripheralwavy groove on the periphery of the pulley, said groove having an outwardly flaring and widening cross-section, said peripheral portions having a pairof opposite annular lateral faces extending transr verse to the pulley axis and bounding said groove, each' of said lateral faces being'located on one or said pulley discs and having a set of circumferentially spaced guiding face portions, the guiding face portions of each set projecting into the spaces between the guiding face portions of the other set, said groove being also bounded by an annular bottom face at least one of said peripheral portions including radially projecting circumferentially spaced bottom face portions, each of said projecting bottom face portions extending circumferentially through a distance substantially smaller than the distance between each guiding face of oneset and the next guiding face of the other set, and being located circumfer
  • a pulley comprising two coaxial pulley discs, each of said pulley discs having finger mean projecting toward the other of said pulley discs and interengaged with the finger means of the same for guiding said pulley discs for axial movement relative to each other, each of said pulley discs having a peripheral portion defining with the peripheral portion of the other pulley disc an annular peripheral wavy groove on the periphery of the pulley, said groove having an outwardly flaring and widening crosssection, said peripheral portions having a pair of opposite lateral faces extending transverse to the pulley axis and bounding said groove, each of said lateral faces being located on one of said pulley discs and having a set of circumferentially spaced guiding face portions, the guiding face portions of each set projecting into the spaces between the guiding face portions of the other set, said groove being also bounded by an annular bottom face at least one of said peripheral portions including radially projecting circumferentially spaced bottom face portions, each
  • a pulley comprising, in combination, two sets of circumferentially spaced guiding means on the periphery thereof, the guiding means of one of said sets of guiding means being arranged circumferentially staggered relative to the guiding means of the other of said sets, said guiding means having guiding faces having outer ends located spaced a first radial distance from the axis of the pulley, and inner ends located spaced a second smaller radial distance from the axis of the pulley, the guiding faces of each set of guiding means projecting alternately in opposite axial directions into the spaces between the guiding means of the other set of guiding means; and a set of circumferentially spaced supporting means having circumferentially spaced supporting faces extending in axial direction transverse to said guiding faces and being spaced from the axis of the pulley a distance shorter than said first radial distance and greater than said second radial distance, each of said supporting faces extending circumferentially through a distance substantially smaller than the distance between each guiding
  • a pulley comprising, in combination, two sets of circumferentially spaced guiding means on the periphery thereof, the guiding means of one of said sets of guiding means being arranged circumferentially staggered relative to the guiding means of the other of said sets, said guiding means having guiding faces having outer ends located spaced a first radial distancefrom. the axis of the pulley, and inner ends located spaced a.
  • each set of guiding means projecting alternately in opposite axial directions into the spaces between the guiding means of the other set of guiding means, the axial distance beween the guiding faces of adjacent guiding means of said two sets of spaced guiding means increasing toward said outer ends of said guiding faces; and a set of circumferentially spaced supporting means having circumferentially spaced supporting faces extending transverse to said guiding faces and being spaced from the axis of the pulley a distance shorter than said first 1'adial distance and greater than said second radial distance, each of said supporting faces extending circumferentially through a distance substantially smaller than the distance between each guiding face of one set and the next guiding face of the other set, and being located circumferentially spaced a susbtantial distance from and intermediate the guiding faces of adjacent guiding means of said two sets of guiding means and adapted to support portions of the flexible elongated means located intermediate the portions of the same
  • a pulley comprising, in combination, two sets of circumferentially spaced guiding means on the periphery thereof, the guiding means of one of said sets of guiding means being arranged circumferentially staggered relative to the guiding means of the other of said sets, said guiding means having guiding faces having, outer ends located spaced a first radial distance from the axis of the" pulley, and inner ends located spaced a second smaller radial distance from the axi of the pulley, the guiding faces of each set of guiding means projecting alternately in opposite axial directions into the spaces between the guiding means of the other set of guiding means, the axial distance between the guiding faces of adjacent guiding means of said two sets of spaced guiding means increasing toward said outer ends of said guiding faces; and a set of circumferentially spaced supporting means having circumferentially spaced supporting faces extending in axial direction transverse to said guiding faces and being spaced from the axis of the pulley a distance shorter than said first radi
  • a pulley comprising, in combination, two sets of circumferentially spaced guiding means on the periphery thereof, the guiding means of one of said sets of guiding means being arranged circumferentially staggered relative to the guiding means of the other of said sets, said guiding means having guiding faces having outer ends located spaced a first radial distance from the axis of the pulley, and inner ends located spaced a second smaller radial distance from the axis of the pulley, the guiding faces of each set of guiding means projecting alternately in opposite axial directions into the spaces between the guiding means of the other set of guiding means; a set of circumferentially spaced supporting means having circumferentially spaced supporting faces extending transverse to said guiding faces and being spaced from the axis of the pulley a distance shorter than said first radial distance and greater than said second radial distance, each of said supporting faces extending circumferentially through a distance substantially smaller than the distance between each guiding face of one set and
  • a pulley formed with an annular wavy groove having a plurality of spaced crest portions alternately projecting axially in opposite directions, and said groove having an annular bottom face including spaced radially projecting bottom face portions, each of said projecting bottom face portions being located intermediate and spaced a substantial distance from two adjacent crest portions and extending circumferentially through'a distance substantially smaller than the circumferential distance between two adjacent crest portions to provide unobstructed spaces between each bottom face portion and the two adjacent crest portions between which it is located, whereby an elongated flexible element guided by the pulley will engage at one of its sides one of said crest portions, then with its bottom surface the next following bottom face portion, then with its opposite side the succeeding crest portion, then with its bottom surface the following bottom face portion, and then with its one side the next following crest portion, and so on.
  • a pulley comprising, in combination, two sets of circumferentially spaced guiding means on the periphery thereof, the guiding means of one of said sets of guiding means being arranged circumferentially staggered rela tive to the guiding means of the other of said sets, said guiding means having guiding faces having outer ends located spaced a first radial distance from the axis of the pulley, and inner ends spaced a second smaller radial distance from the axis of the pulley, the guiding faces of each set of guiding means projecting alternately in opposite axialdirections into the spaces between the guiding means of the other set of guiding means; and a set of circumferentially spaced supporting means having circumferentially spaced supporting faces extending transverse to said guiding faces and being spaced from the axis of the pulley a distance shorter than said first radial distance and greater than said second radial distance, each of said supporting faces extending circumferentially through a distance substantially smaller than the distance between each guiding face

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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US409987A 1952-09-17 1954-02-12 Slippage reducing pulley Expired - Lifetime US2802366A (en)

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DE315407X 1952-09-17
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NL (2) NL87444C (nl)

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945636A (en) * 1955-08-04 1960-07-19 Barmag Barmer Maschf Method and apparatus for winding a plurality of threads
US2987009A (en) * 1957-03-01 1961-06-06 Colorado Fuel & Iron Corp Aerial transporter and system
US3243865A (en) * 1964-12-11 1966-04-05 American Can Co Apparatus for forming a clinched seam
US3678523A (en) * 1970-05-27 1972-07-25 William F Enchelmaier Brushing device
US3772869A (en) * 1970-02-27 1973-11-20 Zinser Textilmaschinen Gmbh Twist stopping device
US3797806A (en) * 1970-01-05 1974-03-19 L Demmert Seine-hauling block
US3844537A (en) * 1972-07-08 1974-10-29 J Rinio Cable pulley
US3876404A (en) * 1974-03-27 1975-04-08 Ppg Industries Inc Method and apparatus for reducing tension and traversing glass fiber strand
US3881361A (en) * 1973-07-13 1975-05-06 E Strohm Newell Rope pulley hoist with improved holding means
US3965767A (en) * 1972-12-01 1976-06-29 Johannes Augustus Rinio Driving pulley mechanism
US4054265A (en) * 1975-01-10 1977-10-18 Rudolf Magg Device for gripping ropes, cables or wires
US4077271A (en) * 1975-02-19 1978-03-07 Walter M. Mathews Drive power transmission element
US4089784A (en) * 1976-03-29 1978-05-16 Tenco Hydro/Aerosciences, Inc. Belt type oil removal unit
FR2371878A1 (nl) * 1976-11-26 1978-06-23 Lewmar Marine Ltd
USRE30591E (en) * 1978-09-19 1981-04-28 Rope pulling device
US4413981A (en) * 1981-06-12 1983-11-08 White Eugene F Sheave
FR2533236A1 (fr) * 1982-09-17 1984-03-23 Asa Sa Procede et dispositif pour l'obtention d'un file de fibres comportant une ame interne et nouveaux types de files ainsi realises
US4685831A (en) * 1985-09-30 1987-08-11 Pierre L. LaBarge, Jr. Apparatus and methods for removing underground cable
US4828225A (en) * 1986-12-15 1989-05-09 Wyle Laboratories Power cable retriever
US4875428A (en) * 1988-01-05 1989-10-24 Armstrong International, Inc. Motorized outrigger drive
US5722640A (en) * 1996-09-25 1998-03-03 Skyba; Helmut K. Winch and improved sheave
WO1999001369A1 (en) * 1997-07-02 1999-01-14 Morgan Matroc Limited Thread guiding wheels
US6068242A (en) * 1994-04-25 2000-05-30 Kingery; Gerald M. Unitary, ridged and ratcheted pulley block
US6092791A (en) * 1994-04-25 2000-07-25 Kingery; Gerald M. Ratchet with journaled spool
WO2006090161A2 (en) * 2005-02-24 2006-08-31 Kevin John Burrows Apparatus for opening and closing sash windows
JP2008545112A (ja) * 2005-07-07 2008-12-11 イー．ペー．フーセ、アクティーゼルスカブ チェーン搬送装置
US20100122493A1 (en) * 2008-11-14 2010-05-20 Sashmatic Limited Apparatus for sash window
US20110073702A1 (en) * 2009-09-29 2011-03-31 Wolfgang Neuber Flexible hose tensioning device
US20130116075A1 (en) * 2011-11-03 2013-05-09 Thomas Miller Method and apparatus for manipulating chain segments
USD767375S1 (en) * 2014-10-28 2016-09-27 Miki Pulley Co., Ltd. Shaft coupling
USD767376S1 (en) * 2015-06-02 2016-09-27 Signode Industrial Group Llc Tension wheel
US20220324684A1 (en) * 2021-04-12 2022-10-13 Hall Labs Llc Line Gripping Winch Drum

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009031622A1 (de) 2009-07-03 2011-01-05 Oerlikon Textile Components Gmbh Drallstoprolle und Drallstopvorrichtung

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US574580A (en) * 1897-01-05 Pulley
US587806A (en) * 1897-08-10 Powee deivee foe bicycles
CH27210A (de) * 1902-12-13 1903-12-15 Brunner J C Rolle für biegsame Zugorgane
FR398058A (fr) * 1908-11-20 1909-05-26 Casimir Sivan Poulie à gorge perfectionnée
FR643904A (fr) * 1927-04-15 1928-09-25 Perfectionnements aux poulies à gorges à diamètre utile réglable
US2117195A (en) * 1937-02-05 1938-05-10 Kirsch Co Venetian blind tilting mechanism
US2259202A (en) * 1938-03-16 1941-10-14 Tubize Chatillon Corp Thread control device for rayon spinning machines
US2337308A (en) * 1941-07-09 1943-12-21 H & B American Machine Company Pulley or feed wheel
US2534679A (en) * 1945-07-21 1950-12-19 Charles I Place Belt drive assembly
US2655813A (en) * 1950-08-10 1953-10-20 Edward N Howell Sheave

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US574580A (en) * 1897-01-05 Pulley
US587806A (en) * 1897-08-10 Powee deivee foe bicycles
CH27210A (de) * 1902-12-13 1903-12-15 Brunner J C Rolle für biegsame Zugorgane
FR398058A (fr) * 1908-11-20 1909-05-26 Casimir Sivan Poulie à gorge perfectionnée
FR643904A (fr) * 1927-04-15 1928-09-25 Perfectionnements aux poulies à gorges à diamètre utile réglable
US2117195A (en) * 1937-02-05 1938-05-10 Kirsch Co Venetian blind tilting mechanism
US2259202A (en) * 1938-03-16 1941-10-14 Tubize Chatillon Corp Thread control device for rayon spinning machines
US2337308A (en) * 1941-07-09 1943-12-21 H & B American Machine Company Pulley or feed wheel
US2534679A (en) * 1945-07-21 1950-12-19 Charles I Place Belt drive assembly
US2655813A (en) * 1950-08-10 1953-10-20 Edward N Howell Sheave

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945636A (en) * 1955-08-04 1960-07-19 Barmag Barmer Maschf Method and apparatus for winding a plurality of threads
US2987009A (en) * 1957-03-01 1961-06-06 Colorado Fuel & Iron Corp Aerial transporter and system
US3243865A (en) * 1964-12-11 1966-04-05 American Can Co Apparatus for forming a clinched seam
US3797806A (en) * 1970-01-05 1974-03-19 L Demmert Seine-hauling block
US3772869A (en) * 1970-02-27 1973-11-20 Zinser Textilmaschinen Gmbh Twist stopping device
US3678523A (en) * 1970-05-27 1972-07-25 William F Enchelmaier Brushing device
US3844537A (en) * 1972-07-08 1974-10-29 J Rinio Cable pulley
US3965767A (en) * 1972-12-01 1976-06-29 Johannes Augustus Rinio Driving pulley mechanism
US3881361A (en) * 1973-07-13 1975-05-06 E Strohm Newell Rope pulley hoist with improved holding means
US3876404A (en) * 1974-03-27 1975-04-08 Ppg Industries Inc Method and apparatus for reducing tension and traversing glass fiber strand
US4054265A (en) * 1975-01-10 1977-10-18 Rudolf Magg Device for gripping ropes, cables or wires
US4077271A (en) * 1975-02-19 1978-03-07 Walter M. Mathews Drive power transmission element
US4089784A (en) * 1976-03-29 1978-05-16 Tenco Hydro/Aerosciences, Inc. Belt type oil removal unit
FR2371878A1 (nl) * 1976-11-26 1978-06-23 Lewmar Marine Ltd
USRE30591E (en) * 1978-09-19 1981-04-28 Rope pulling device
US4413981A (en) * 1981-06-12 1983-11-08 White Eugene F Sheave
FR2533236A1 (fr) * 1982-09-17 1984-03-23 Asa Sa Procede et dispositif pour l'obtention d'un file de fibres comportant une ame interne et nouveaux types de files ainsi realises
US4685831A (en) * 1985-09-30 1987-08-11 Pierre L. LaBarge, Jr. Apparatus and methods for removing underground cable
US4828225A (en) * 1986-12-15 1989-05-09 Wyle Laboratories Power cable retriever
US4875428A (en) * 1988-01-05 1989-10-24 Armstrong International, Inc. Motorized outrigger drive
US6068242A (en) * 1994-04-25 2000-05-30 Kingery; Gerald M. Unitary, ridged and ratcheted pulley block
US6092791A (en) * 1994-04-25 2000-07-25 Kingery; Gerald M. Ratchet with journaled spool
US5722640A (en) * 1996-09-25 1998-03-03 Skyba; Helmut K. Winch and improved sheave
US6149133A (en) * 1996-09-25 2000-11-21 Skyba; Helmut K. Ratchet pulley for tightening cords or ropes
WO1999001369A1 (en) * 1997-07-02 1999-01-14 Morgan Matroc Limited Thread guiding wheels
US6408608B1 (en) 1997-07-02 2002-06-25 Morgan Advanced Ceramics Limited Thread guiding wheels
WO2006090161A3 (en) * 2005-02-24 2007-02-15 Kevin John Burrows Apparatus for opening and closing sash windows
WO2006090161A2 (en) * 2005-02-24 2006-08-31 Kevin John Burrows Apparatus for opening and closing sash windows
GB2439858A (en) * 2005-02-24 2008-01-09 Kevin John Burrows Apparatus for opening and closing sash windows
GB2439858B (en) * 2005-02-24 2009-09-16 Kevin John Burrows Apparatus for opening and closing sash windows
JP2008545112A (ja) * 2005-07-07 2008-12-11 イー．ペー．フーセ、アクティーゼルスカブ チェーン搬送装置
US20100122493A1 (en) * 2008-11-14 2010-05-20 Sashmatic Limited Apparatus for sash window
US20110073702A1 (en) * 2009-09-29 2011-03-31 Wolfgang Neuber Flexible hose tensioning device
US8944389B2 (en) * 2009-09-29 2015-02-03 Siemens Aktiengesellschaft Flexible hose tensioning device
US20130116075A1 (en) * 2011-11-03 2013-05-09 Thomas Miller Method and apparatus for manipulating chain segments
USD767375S1 (en) * 2014-10-28 2016-09-27 Miki Pulley Co., Ltd. Shaft coupling
USD767376S1 (en) * 2015-06-02 2016-09-27 Signode Industrial Group Llc Tension wheel
US20220324684A1 (en) * 2021-04-12 2022-10-13 Hall Labs Llc Line Gripping Winch Drum

Also Published As

Publication number Publication date
NL87444C (nl)
NL181365B (nl)
CH315407A (de) 1956-08-15

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