US3808790A - Spindle brake with articulated and detachable brake shoes - Google Patents

Spindle brake with articulated and detachable brake shoes Download PDF

Info

Publication number
US3808790A
US3808790A US00381638A US38163873A US3808790A US 3808790 A US3808790 A US 3808790A US 00381638 A US00381638 A US 00381638A US 38163873 A US38163873 A US 38163873A US 3808790 A US3808790 A US 3808790A
Authority
US
United States
Prior art keywords
brake
shoes
branches
spindle
improvement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00381638A
Other languages
English (en)
Inventor
F Preston
P Tarbox
G Anderson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SACO LOWELL CORP
Original Assignee
SACO LOWELL CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SACO LOWELL CORP filed Critical SACO LOWELL CORP
Priority to US00381638A priority Critical patent/US3808790A/en
Priority to CA193,546A priority patent/CA995598A/en
Priority to ES423880A priority patent/ES423880A1/es
Priority to DE19742414711 priority patent/DE2414711C3/de
Priority to CH431974A priority patent/CH572995A5/xx
Priority to GB1378874A priority patent/GB1462249A/en
Priority to JP3550574A priority patent/JPS5428493B2/ja
Application granted granted Critical
Publication of US3808790A publication Critical patent/US3808790A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/04—Spindles
    • D01H7/22—Braking arrangements
    • D01H7/2208—Braking arrangements using mechanical means
    • D01H7/2216—Braking arrangements using mechanical means with one or two manually actuated shoe-brakes acting on a part of the whorl

Definitions

  • each branch has at its leading edge an articulated, pivotable and separable or detachable brake shoe to effect said braking.
  • the Maurer brake is essentially of one piece, formed integrally of an elastically deformable structural plastic material and having a brake shoe, wear resistant material lining the interior spindle confronting surfaces of the arcuate periphery of the bifurcate branches for contact with and braking of a rotating spindle;
  • the Zinser brake is formed essentially of three parts, a left-hand branch and handle portion, a right-hand branch and handle portion, and an elastically deformable joining portion which latter holds together the right and left hand portions so that they are eleastically deformable relative one another, such as in the form of a leaf spring;
  • the Zinser brake also has a brake shoe material lining the interior confronting surfaces of the right and left branches.
  • spindle brakes of these prior art constructions are substantial and include not only great simplicity of design, construction and operation, but also very low cost due to economical manufacture of such brakes from inexpensive materials and relatively few components.
  • the value of the foregoing will be readily understood when one considers that a textile mill commonly employs several thousand spindles, each requiring abrake. Thus, use of so inexpensive a brake can be expected to provide the mill user with great economies over use of brakes hitherto known.
  • the brake will no longer be capable of holding itself on the spindle member; further use of the brake then would require manual holding of the brake against the spindle member, which is completely impractical, since the operator requires both hands free to perform the aforesaid repair and rethreading operations.
  • a further object of the invention is to provide such a bifurcate branched brake wherein the branches are separated by a distance greater than the diameter of the spindle member which they embrace, thus to obviate abrasive wear of the branches.
  • the distance between the the branches may be less than, equal to or greater than the diameter of the spindle member which they embrace; in its most preferred embodiment, to realize the advantages of obviating any wear on the branches, the distance therebetween is greater than the said diameter; the brake shoes are attached to the respective branches to which they are pivotally joined such that they extend beyond the peripheries of the branches so that the distance along the line between the pivot points which extends between the braking surfaces of the shoes is less than said diameter.
  • Means for providing detachable pivotal interconnection between the shoes and their respective branches may be in the form of pivot pins which are removable and replacable, or in the form of a ball and socket joint with one of each molded or formed as a part of the shoe and the other as a part of the corresponding branch, in the preferred embodiments.
  • FIG. 1 a perspective view in fragmentary side elevation and partially in section, shows a typical spindle assembly having attached thereto a brake of the invention in its braking or actuated position, the brake shoes thereof being pin-linked or articulated with the branches for pivotal movement;
  • FIG. 2 a perspective view in fragmentary front elevation, is otherwise similar to FIG. 1 but shows the brake in a released or deactuated position;
  • FIG. 3 in sectional plan view taken generally along line 3-3 of FIG. 1, shows the brake actuated, the relative separations of the brake shoes and the branches along the line joining the pivot points of the, brake shoes, and the relative positioning of said line relative a parallel diameter of the spindle member which the brake branches embrace;
  • FIG. 4 is a sectional plan view taken generally along line 44 of FIG. 2, showing in detail the present brake shoes and their braking surfaces and their recessed pivotal joining to the brake branches;
  • FIG. 5 is a fragmentary front elevational view of the brake with itsarticulated shoes making initial and full contactwith the spindle member prior to achieving the actuated position as shown in FIGS. 1 and 3;
  • FIG. 6 is a plan view in partial section taken generally along line 6-6 of FIG. 5 but showing the brake being released and its articulated shoes making last contact with the spindle member prior to full release as shown in FIGS. 2 and 4;
  • FIG. 7 is a fragmentary plan view partially in section of another embodiment ofthe present brake wherein the brake shoe is pivotally joined to the respective branch by means of a ball and socket joint;
  • FIG. 8 is a fragmentary sectional view of the ball and socket joint taken generally along line 88 of FIG. 7.
  • spindle assembly 10 comprises an upstanding spindle blade or shaft 12 for receiving thereonto a tube onto which yarn is spun or twisted, a driving whirl l4 for'receiving thereabout a driving belt (not shown) which rotates blade 12, whirl 14 having an upper flange l6 and a lower flange 18 to retain therebetween the driving belt, lower flange 18 also serving as the rotatable spindle member which is received between or embraced by the branches of the present brake when the latter is actuated.
  • a brake of the invention is a brake of the invention, generally designated 20, is a brake of the invention.
  • a brake arm 22 having bifurcate branches 23 and 23', a handle 24 formed integrally with arm 22 and extending outwardly therefrom at an upwardly directed angle thereto, and downwardly directed pivot arms 26 and 26 formed integrally with branches 23 and 23' having inwardly directed pivot pins (not specifically numbered) for pivotal connection of brake 20 with a fixed member of assembly 10 such as spindle mounting ring 28 into recesses therein.
  • branches 23 and 23' are forced apart elastically deforming brake 20 a distance sufficient for the pivot pins of arms 26 and 26' to enter and be retained by the recesses in ring 28, whereupon the force of separation is removed, brake 20 elastically recovers and is held onto assembly 10 for vertical pivoting thereabout between a position of brake engagement with assembly) and one of release ordisengagement as shall later be described.
  • brake 20 may be detached from assembly l0.
  • ring 28 may have the pivot pins
  • spindle assembly 10 has a downwardly extending fixed screw member 32 for receiving a lock nut 34, assembly 10 then being rigidly held on rail 30 by ring 28 and nut 34. All of the foregoing is known from the descriptions of Maurer in U.S. Pat. No. 3,226,923.
  • present branches 23 and 23' are formed with brake shoe receiving recesses 36 and 36', respectively to receive and hold the brake shoes of the invention 38 and 38' therewithin, such that shoes 38 and 38' may be pivotally joined to branches 23 and 23.
  • Such joining is effected in this embodiment by means of the pivot pins 40 and 40' passing through branches 23 and 23 and respective shoes 36 and 36 near the outer ends thereof at pivot points located on line PC therebetween (see FIG. 3, especially).
  • the separation of branches 23 and 23 is such that the distance along line PC between opposing faces of the branches is greater than the diameter of whirl flange 18 so that no contact between these branches and the whirl flange can occur obviating abrasive wear.
  • the distance between the braking faces of shoes 36 and 36' along line PC is such that it is always less than or equal to the diameter distance of whirl flange 18, less than such diameter when the shoes have not as yet been worn to a state of inoperativeness and equal to said diameter when the shoes have been worn to such state and require replacement.
  • the pivot point line PC and pivot points and 40' have been moved beyond the parallel diameter line SC of flange l8 and, in effect, brake branches 23 and 23' and shoes 38 and 38 have been snapped over center of spindle assembly 10.
  • shoes 38 and 38' are formed of a wear resistant brake lining material with an arcuate brake face or surface for confronting and of complementary arcuity to that of the rotatable spindle member, and in this embodiment to that of whirl flange 18.
  • the pivotable-point of attachment of shoes 38 and 38' with the respective branches is located such that upon contact of shoes 38 and 38' with flange 18, shoes 38 and 38' will pivot until the full braking surfaces of these shoes conform to the complementary arcuity of flange 18; yet further slight additional upward force on handle 24, with such braking surfaces in full contact, applies the braking surfaces to the flanges rotating surface and stops flange 18 and fixedly attached spindle blade 12.
  • a raising of handle 24 stops spindle rotation by application of the full braking surfaces of shoes 38 and 38' against flange l8, and a still further raising of handle24 moves shoes 38 and 38' over the now stopped surface of flange 18 until pivot points 40 and 40 and line PC therebetween are beyond the parallel center line SC of assembly 10.
  • brake 20 is in a holding position and shall retain such holding position until handle 24 is lowered.
  • holding means in this embodiment in the form of cooperating abutment surfaces 18' on the whirl flange and 22 on the opposing or confronting surface thereto of brake arm 22.
  • FIGS. 7 and 8 Another embodiment is shown in FIGS. 7 and 8 wherein the pivot points are shown in the form of ball and socket joints, and the holding means is shown in the form of abutting surfaces of the brake shoe and the opposing interior surface of the recess of the branch.
  • brake having mirror image branches one 123 of which is shown in detail, is
  • shoes 138 are formed with shoe retaining recesses 136 formed at their leading ends. Recesses 136, in turn, are formed with socket recesses 136 at the pivot points and with sufficient space 137 to permit brake shoe pivoting as hereinbefore described.
  • the brake shoes 138 are formed with hemispherical protuberances 139 and 139' on either side thereof for cooperation with sockets 136, and form the ball portion of the present ball and socket joints.
  • Shoes 138 in similar manner to shoes 38 and 38' of the previous embodiment, are formed with braking surfaces of complementary arcuity to the surface of the rotating spindle member with which they cooperate in a braking of the spindle blade to a stop.
  • shoes 138 are formed with a rear surface 123 opposite their braking surfaces for abutting contact with an opposing and facing surface 123' formed at and defining the interior rear wall of recesses 136. Such cooperating surfaces for abutment form the holding means of the brake of this embodiment.
  • This brake operates in similar manner to that of the previously described embodiment. Replacement of brake shoes is made simple, according to the invention. In order to provide a systematic method and a minimum of time expended both in brake shoe replacement and in machine down time, it is recommended that a periodic schedule for brake shoe re placement be devised such as every six 'or so months. With the machine stopped and the brakes in a fully released position, such as in FIGS.
  • the operator can quickly scan the brake shoes at their pivot line PC to see which shoes need replacement; for those that do, their entire brakes are removed from their associated spindle assemblies and brakes with unwom shoes are immediately placed thereon. Then the removed brakes are taken to a convenient place, and the worn shoes removed, such as by removal of pivot pins of the first embodiment or a snapping of the balls out of their sockets of the second embodiment described above, to be replaced by unworn shoes. lt will be noted that one should have on hand an adequate supply of additional brakes to pursue this recommended procedure. Once done, these additional shoes with replacement, unworn shoes are available for use at the next periodic inspection.
  • Brake shoes of the present invention provide the advantages of much greater useful lifetimes than brakes of the prior art because, upon application of the pres ent brakes, the full'braking surfaces of the shoes are im mediately applied to the rotating spindle member and thus abrasion and the braking force is evenly distributed over such entire surfaces, rather than at the very small leading braking surfaces as in prior art brakes. In order that this may occur, the present brake shoes are pivotally articulated to the brake branches.
  • a further advantage of the present invention is the great economies provided not only by extending the useful lifetimes of the brakes before shoe replacements are required, but also in the fact that one replaces but 7 the brake shoes themselves and may reuse indefinitely the rest of the brakes.
  • a bifurcate branched, elastically deformable spindle brake adapted for pivoting on a spindle assembly between a position of disengagement from and a position of holding engagement with a rotatable spindle member thereof, the improvement comprising:
  • brake shoes pivotally articulated with the respective branches of said brake for movement between and into said positions, formed with braking surfaces of complementary arcuity to said member for braking engagement therewith and extending toward said member beyond the adjacent periphery of their associated branches.
  • holding means is provided at least in part on said brake for retaining said brake in said position of holding engagement.
  • said holding means comprises opposing abutment surfaces at the apex of said branches and on said spindle member.
  • said holding means comprises opposing abutment surfaces on said shoes and on the shoe-receiving recesses of said branches associated therewith.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Braking Arrangements (AREA)
US00381638A 1973-07-23 1973-07-23 Spindle brake with articulated and detachable brake shoes Expired - Lifetime US3808790A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US00381638A US3808790A (en) 1973-07-23 1973-07-23 Spindle brake with articulated and detachable brake shoes
CA193,546A CA995598A (en) 1973-07-23 1974-02-26 Spindle brake with articulated and detachable brake shoes
ES423880A ES423880A1 (es) 1973-07-23 1974-03-04 Perfeccionamientos en frenos de husillo con zapatas articu-ladas y desmontables.
DE19742414711 DE2414711C3 (de) 1973-07-23 1974-03-27 Spindelbremse für Spinn- oder Zwirnmaschinen
CH431974A CH572995A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-07-23 1974-03-28
GB1378874A GB1462249A (en) 1973-07-23 1974-03-28 Textile machine provided with spindle and brake assembly
JP3550574A JPS5428493B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-07-23 1974-03-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00381638A US3808790A (en) 1973-07-23 1973-07-23 Spindle brake with articulated and detachable brake shoes

Publications (1)

Publication Number Publication Date
US3808790A true US3808790A (en) 1974-05-07

Family

ID=23505806

Family Applications (1)

Application Number Title Priority Date Filing Date
US00381638A Expired - Lifetime US3808790A (en) 1973-07-23 1973-07-23 Spindle brake with articulated and detachable brake shoes

Country Status (6)

Country Link
US (1) US3808790A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5428493B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA995598A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH572995A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES423880A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1462249A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347802A (en) * 1989-10-19 1994-09-20 Fritz Stahlecker Spinning or twisting spindle
US6193450B1 (en) * 1997-09-15 2001-02-27 Humberto M. Caballero Interrupted cut pacifier (ICP)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181331B (en) * 1985-10-09 1989-10-04 Shimano Industrial Co Drag mechanism for a spinning fishing reel
CH693878A5 (de) * 1995-09-28 2004-03-31 Rieter Ag Maschf Spindeltypenreihe bei Ringspinnmaschinen.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449773A (en) * 1946-05-18 1948-09-21 Whitin Machine Works Spindle brake
US3122875A (en) * 1960-05-09 1964-03-03 Whitin Machine Works Spindle brakes
US3226923A (en) * 1962-09-28 1966-01-04 Spintex Spinnerei Maschinenban Brake for spinning and twisting spindles
US3406512A (en) * 1966-12-27 1968-10-22 Schurr Stahlecker & Grill Spindle for spinning or twisting machines
US3681908A (en) * 1970-02-06 1972-08-08 Zinser Textilmaschinen Gmbh Spindle brake

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4321938Y1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1965-10-15 1968-09-16
JPS447869Y1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1968-03-26 1969-03-26

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449773A (en) * 1946-05-18 1948-09-21 Whitin Machine Works Spindle brake
US3122875A (en) * 1960-05-09 1964-03-03 Whitin Machine Works Spindle brakes
US3226923A (en) * 1962-09-28 1966-01-04 Spintex Spinnerei Maschinenban Brake for spinning and twisting spindles
US3406512A (en) * 1966-12-27 1968-10-22 Schurr Stahlecker & Grill Spindle for spinning or twisting machines
US3681908A (en) * 1970-02-06 1972-08-08 Zinser Textilmaschinen Gmbh Spindle brake

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347802A (en) * 1989-10-19 1994-09-20 Fritz Stahlecker Spinning or twisting spindle
US6193450B1 (en) * 1997-09-15 2001-02-27 Humberto M. Caballero Interrupted cut pacifier (ICP)

Also Published As

Publication number Publication date
CH572995A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1976-02-27
DE2414711B2 (de) 1975-10-16
GB1462249A (en) 1977-01-19
ES423880A1 (es) 1976-06-01
JPS5428493B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1979-09-17
JPS5031134A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-03-27
DE2414711A1 (de) 1975-02-20
CA995598A (en) 1976-08-24

Similar Documents

Publication Publication Date Title
US3808790A (en) Spindle brake with articulated and detachable brake shoes
US5170870A (en) Switchable freewheeling ratchet unit
US4300265A (en) Break-up roller for open-end spinning machine
US5058229A (en) Machine and drive disk for the repair and/or maintenance of floors
JP2014001492A (ja) 繊維機械のドラフトユニット用の凝縮ユニットおよびトップローラ集合体
CA2091211A1 (en) Locking coupler for floor maintenance pad
JPS6015738B2 (ja) ２つの駆動ホワ−ルを有する仮撚り機
JP2009513462A (ja) 糸結合装置
US2449773A (en) Spindle brake
US5749215A (en) Rotator assembly
US1871720A (en) Attachment for driving spindles
JP3306074B2 (ja) 紡織機械、特に織物機械における転がり軸受で支持された加圧ローラ
US3681908A (en) Spindle brake
US4445320A (en) Spindle brake
US3226923A (en) Brake for spinning and twisting spindles
JP3610678B2 (ja) 織機におけるクロスローラのカップリング装置
CN211112493U (zh) 一种优质氧化钛瓷轮
US3537832A (en) Quick-release grinding machine coupling and improved abrading device for use therewith
CN216519480U (zh) 延长使用寿命的织机皮带轮
GB1573869A (en) Winding apparatus
CN217668832U (zh) 一种金属表面修平抛光头
US2305718A (en) Machine for facilitating the connecting of temples with lenses
KR0137485B1 (ko) 방직기의드래프트장치
CN212582066U (zh) 一种假捻机原丝纱架的瓷眼结构
CN218658226U (zh) 一种对眼镜片光学有效表面进行精加工的抛光工具