[go: up one dir, main page]

US2490035A - Mechanism for reciprocating brush carriages of selector switches or the like - Google Patents

Mechanism for reciprocating brush carriages of selector switches or the like Download PDF

Info

Publication number
US2490035A
US2490035A US579367A US57936745A US2490035A US 2490035 A US2490035 A US 2490035A US 579367 A US579367 A US 579367A US 57936745 A US57936745 A US 57936745A US 2490035 A US2490035 A US 2490035A
Authority
US
United States
Prior art keywords
belt
carriage
run
jaw
gripping
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
US579367A
Other languages
English (en)
Inventor
Deakin Gerald
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Priority to US579367A priority Critical patent/US2490035A/en
Priority to ES173128A priority patent/ES173128A1/es
Application granted granted Critical
Publication of US2490035A publication Critical patent/US2490035A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H63/00—Details of electrically-operated selector switches
    • H01H63/16—Driving arrangements for multi-position wipers
    • H01H63/18—Driving arrangements for multi-position wipers with step-by-step motion of wiper to a selector position
    • H01H63/22—Driving arrangements for multi-position wipers with step-by-step motion of wiper to a selector position using step-by-step electromagnetic drive without ratchet, e.g. self-interrupting driving magnet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18152—Belt or chain carried member

Definitions

  • This invention relates to means for drivin reciprocatory carriages such as brush carriages of selector switches, for example switches of this character used in automatic telephone systems as finder switches, group selectors, final connectors, marking switches or the like.
  • An object of the invention is to provide an endless or continuous belt drive for a reciprocatory brush carriage or the like which is novel and advantageous in construction and operation, which is easy to assemble and economical to manufacture, and which will operate satisfactorily over long periods of service with a minimum of attention.
  • Another object of the invention is to provide for a reciprocatory carriage a drive which will operate with a minimum of noise.
  • Still another object of the invention is to provide a carriage drive in which a reciprocatory brush carriage is reoiprocated across a flat terminal bank by a flexible band which is driven in one direction only.
  • a further object of the invention is to provide means for gripping the reciprocatory carriage to either run of an endless belt in accordance with the desired direction of carriage movement.
  • a still further object of the invention is to provide means whereby a brush carriage or the like is reciprocated by means in which a continuous belt is driven in one direction only and a belt gripping or clutching device is sprung for operation in the opposite direction, at each end of a carriage stroke.
  • Another object of the invention is to provide a reciprocating-carriage drive whereby two reciprocatory brush carriages may be reciprocated on opposite sides of the same bay from a centrally located vertical shaft, thus reducing the vertical shaft equipment by one-half.
  • FIG. 1 is a fragmentary section as seen from above, illustrating one embodiment of the invent-ion
  • Fig. 2 is a sectional view taken along the line 2-2 of Fig. 1;
  • Fig. 3 is a sectional view taken along the line 3-3 of Fig. 1;
  • Fig. 4 is a view of the belt gripping means on the brush carriage showing it as gripping one run of the belt.
  • Fig. 5 is a view similar to Fig. 4 but showing the belt gripping means just after release of one run of the belt and the gripping of the other run of the belt for movement of the brush carriage in the opposite direction;
  • Fig. 6 is a section taken along the line 6-5 of Fig. 4; and.
  • Fig. 7 is a section taken along the line 'l-'I of Fig. 5.
  • a supporting frame I of a brush carriage 2 is mounted to slide along a horizontal guide or rod 3 and is held against swinging about said rod 3 by a guide or rod 4 (Fig. 6) which extends slidably through a slot or groove 5 in a depending part of the brush-carriage frame.
  • Such guides or guide rods 3 and 4 are secured at their ends to frame members 6 and I which may form part of a casing 8 in which the brush carriage is reciprocated.
  • the brush carriage frame I may be considered as made up of two parts, an inner part and an outer part.
  • Said inner part (Fig. 1) carries brush means to cooperate with terminals 9 of a flat terminal bank !0 and the brush carriage proper will not be described further inasmuch as it is described and claimed in my copending patent application Ser. No. 576,797, filed Feb. 8, 1945, and is no part of the present invention.
  • Said outer part of the brush carriage frame carries the belt-gripping means. These two parts of the carriage frame may be permanently connected together or may be detachably connected which would enable either part to be reversed with respect to the other.
  • Said outer part of the supporting frame of the brush carriage 2 carries gripping means to cooperate alternately with parallel runs of a continuous or endless belt [2 which is driven in one direction only.
  • a continuous or endless belt [2 which is driven in one direction only.
  • said belt I2 is made of suitable textile or plastic material.
  • the endless belt drive and the gripping means on the brush carriage constitutes important parts of the present invention. As illustrated in Fig.
  • the endless belt l2 passes around a pulley 13 at one end of the casing 8 and from this pulley l3 extend parallel runs which at the opposite end of the casing 8 pass between two guide rollers H and then diverge through openings l5 in frame or casing member 6 to the outside of the casing where the belt l2 passes around a large driving pulley or wheel l6 fixed on a short or stu'b shaft 11 journaled in a bracket I8 constituting part of the frame of the assembled machine.
  • the belt may be kept taut and shock it may be mounted between stiffener beneath 7 other end of the of gear upwardly Obviously energization of the magnet 29 will swing arm 3
  • the driving pulley It for the belt I2 is driven by suitable clutch mechanism from a vertical shaft 24 which is motor driven in a manner that is well known in so-ca11ed rotary telephone exchange systems.
  • the clutching mechanism is similar to clutching mechanism already in use and comprises a thin flexible gear 25 secured to the lower end of stub shaft ii.
  • a gear 26 is secured on shaft 24 to'rotate therewith and to mesh with gear 25, but gear 25 may be flexed so as to disconnect it from said gear 28.
  • this gear may be in the form of a thin disc and discs 2? and 28 of which the larger disc 21 may assist in maintaining the gears 25 and 26 in proper alignment while in mesh with each other.
  • the clutch is controlled by a clutch magnet 29 mounted on a fiange of bracket IS with its pivoted armature 30 at the bottom thereof.
  • Upward movement of the arm 3! may be effected by means such as a leaf spring 34, fulcrumed on a bracket 35.
  • a set screw 36 threaded in bracket is acts on one end of the spring and may be adjusted to produce at the spring the desired upward presto deflect the adjacent part to disengage it from gear 25.
  • the belt-gripping device is shown as mounted on a sub-frame 38 constituting the outer part of the brush carriage frame 1 and to which the inner part carrying the brushes is attached for support thereby.
  • the parallel runs of the belt [2 pass immediately above the flat body of the frame portion 3a which is slidably supported at its front or side toward per jaw 43, preferably toothed, on a pivot 44 at the upper other run abutment face of the frame portion 38.
  • of belt [2 passes just to the rear of an 42a at the left and front of frame pore movement of the displaced porin position by said nuts.
  • spring are detents such as ball detents comprisand hold the jaw in either gripping 7 intermediate point a
  • This movement of the right hand verse change in the bers may be made of any suitable material such as metal or plastic material.
  • slides 52 each having at an longitudinal slot 53 throughwhich passes a pivot or pin 54 fixed with reference to part 38, and at its inner end a pivot or pin 55 which is fixed with reference to slide 52 and passes through an inwardly inclined slot 56 in member 38 and over the adjacent run of the belt.
  • the slide After a slide 52 has acted to cause movement of one jaw 43 from an effective position to an ineffective position and vice versa for the other jaw, the slide must be returned to its outermost or normal position.
  • a helical compression spring 59 interposed between said slides and at such an inclination that the spring will urge the slides 52 away from each other both longitudinally and transversely.
  • the spring 59 is interposed between abutments 68 on said slides and is retained in engagement therewith by pins 51 projecting from said abutments into the ends of said spring. Obviously the spring 59 will tend to absorb the shock of stopping the carriage and to assist in reversing the movement thereof.
  • roller 64 mounted on said shank are a roller 64 of suitable material such as red fibre, adjacent to said head 65 for engagement with the belt, a washer or spacer 68 in a countersunk opening in frame portion 38 and forming a marginal depress1on around the inclined slot at the face of part 38 adjacent the jaws 43, and a second roller 69 to fit in said inclined slot 56.
  • Rollers 57 and 69 obviously tend to reduce friction and vibration.
  • the toothed gripping faces of the jaws 43 when effective for gripping corresponding pivot 44 is to the front thereof.
  • downward pressure on the upper reach of the belt [2 will throw the upper jaw member 43 downward and withdraw the right hand end of the toothed face of this jaw downwardly more rapidly than the left hand end.
  • the belt will then be separated from the fixed abutment 42 and will engage only the other end of said toothed face.
  • the adjacent portion of the belt will be inclined downwardly and to the left and beneath revolving roller 69.
  • the belt will be deflected upwardly and the corresponding jaw 43 in the same direction.
  • the flexible gear 25 will then turn in a counterclockwise direction and cause the outer run or reach of endless belt I 2 to move to the left and the inner run to move to the right.
  • the brush carriage when gripped to the outer reach or run, will travel to the left until the end of its path is reached. At this time the brush carriage is reconnection will again be reversed. Deenergization of the clutch magnet will disconnect the clutch and the belt I 2 will come to rest.
  • a selector switch ofthe kind used in automatic telephonesystems or the like the combination, with a brush carriage mounted for reciprocation; along a flat terminal bank, ofmeans for reciprocating said carriage including an endless driving belt having two parallel runs arranged to travel in opposite directions, gripping means on said arria e posi ioned adjacent o h Qt sa runs, and adapted to engage either of said runs for movement ofthe carriage inone direction with one and in; the opposite; direction with the other of said runs, respectively, and belt deflecting means operative upon arrival of said carriage ineither of twoextreme positions to deflect a respective run so asto disengage said gripping means. from; the deflected run and engage said gripping means with the undefiected run, whereby the direction of travel of said carriage will be reversed.
  • said gripping means comprises a pair or pivoted members each having an effective and an. inefiective position, said members being provided with means operatively linking them togather so that each member will assume its efiective position when the other member is forced into its ineffective position.
  • said gripping means comprise a pair of members each having a belt-engaging surface and pivot means rotatably securing said members to, said carriage, sa d pivot means being displaced with respect to the, belt-engaging surface of a respective member in the general direction of travel of the respective belt run engageable by said member, said deflecting means comprising a pair of projections each associated with a respective member and arranged to bear upon the respective run engageable by the associated member at a point which is displaced with respect to the belt-engaging surface of said associated member in the general direction of travel of said respective run by a lesser distance than the said pivot means securing said associated member to said carriage.
  • a carriage reciprocable along a linear a s tiffrbufier at ech en p air aths an endless driving belt having two runs extend ins on p ite id s said car ia e pa l e to said path, said runs being arranged to travel in opposite directions;- gripping means on said carriage alternatively engageable with either of said runs for displacing said carriage in a respeetive direction along said path; and mechanism for reversing the direction of travel of said carriage upon approach of either of said bumpers, saidmechanism comprising a pair of members displaceablerelative to said gripping means, each of said members having a normal position and being engageable by a respective bumper for dis,- placement into.
  • each oi said. projections is arranged to bear upon said gripping means through the intermediary of a respective belt run.
  • a mechanism for reciprocating contact brushes or the like along a linear path a carriage displaceable along said path, a stationary buffer at each end of said path, an endless driving belt having two runs extending on opposite sides of, said carriage parallel to said ath, said runs being arranged to travel in opposite directions, a pair of jaws each associated with a respective belt run, each of said jaws being provided with a belt-gripping surface facing the associatedrun, pivot means swingably securing said jaws to said carriage, said jaws being thus swin able from an ineiiective position into an effective position in which the said belt-gripping surface of the jaw engages the associated belt run whereby the carriage will be entrained in the direction of travel of the run thus engaged, said members being further provided with lug means operatively linking them together so that each member will assume its efiective position when the other member is swung into its ineffective position, a pair of slides, guide means securing said slides to said carriage while permitting longitudinal and pivotal movement of said slides, said carriage being
  • each of said jaws is formed with a pair of holes, further comprising a flexible member secured to said carriage and carrying a pair of ball detents each arranged to cooperate with a respective pair of holes so as to locate each jaw alternatively in the said efiective or ineffective position thereof.
  • each of said projection-carrying extremities is arranged to bear upon a respective jaw through the intermediary of the associated belt run.
  • said pivot means comprise a pair of studs each displaced relative to the belt-engaging surface of the respective jaw secured thereto in the general direction of travel of the associated belt run, the said projection-carrying extremity of a respective slide being arranged to bear upon said associated belt run at a point which is displaced relative to said belt-engaging surface in the same 10 general direction but by a lesser distance than the respective stud.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
US579367A 1945-02-23 1945-02-23 Mechanism for reciprocating brush carriages of selector switches or the like Expired - Lifetime US2490035A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US579367A US2490035A (en) 1945-02-23 1945-02-23 Mechanism for reciprocating brush carriages of selector switches or the like
ES173128A ES173128A1 (es) 1945-02-23 1946-04-05 Mejora en conmutadores selectores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US579367A US2490035A (en) 1945-02-23 1945-02-23 Mechanism for reciprocating brush carriages of selector switches or the like

Publications (1)

Publication Number Publication Date
US2490035A true US2490035A (en) 1949-12-06

Family

ID=24316609

Family Applications (1)

Application Number Title Priority Date Filing Date
US579367A Expired - Lifetime US2490035A (en) 1945-02-23 1945-02-23 Mechanism for reciprocating brush carriages of selector switches or the like

Country Status (2)

Country Link
US (1) US2490035A (es)
ES (1) ES173128A1 (es)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653022A (en) * 1951-07-03 1953-09-22 Armstrong Westropp Antiinertia mechanism for sliding doors
US2753035A (en) * 1952-03-17 1956-07-03 Addressograph Multigraph Embossing machine
US2962772A (en) * 1957-10-18 1960-12-06 Proctor Silex Corp Movable carriage travel reversing mechanism
US2971389A (en) * 1958-07-21 1961-02-14 Leland F Blatt Reversing stroke retractor mechanism
US4198170A (en) * 1977-05-13 1980-04-15 Triumph Werke Nurnberg A.G. Single element typing for left to right or right to left letter feeding
US4277189A (en) * 1976-06-03 1981-07-07 Centronics Data Computer Corp. Bidirectional carriage drive employing a closed loop belt drive means for printers and the like
US4286888A (en) * 1978-12-28 1981-09-01 Centronics Data Computer Corp. Bi-directional belt drive, print head mounting means and printing plane adjustment means for serial printers
US20190316727A1 (en) * 2018-04-13 2019-10-17 Rolls-Royce Power Engineering Plc Apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1472818A (en) * 1923-11-06 Brush-tripping device
US1611854A (en) * 1926-12-21 damrow
US1774356A (en) * 1929-01-04 1930-08-26 Preston E Cloud Windshield wiper
US2073087A (en) * 1934-01-23 1937-03-09 Wirth Alexander Selector for telephone installations
US2123228A (en) * 1937-03-31 1938-07-12 Bell Telephone Labor Inc Selector switch
US2197501A (en) * 1938-04-23 1940-04-16 Bell Telephone Labor Inc Control circuit for high speed selector
US2240039A (en) * 1938-07-09 1941-04-29 Bell Telephone Labor Inc Selector switch
US2330812A (en) * 1942-03-04 1943-10-05 Int Standard Electric Corp Selector switch

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1472818A (en) * 1923-11-06 Brush-tripping device
US1611854A (en) * 1926-12-21 damrow
US1774356A (en) * 1929-01-04 1930-08-26 Preston E Cloud Windshield wiper
US2073087A (en) * 1934-01-23 1937-03-09 Wirth Alexander Selector for telephone installations
US2123228A (en) * 1937-03-31 1938-07-12 Bell Telephone Labor Inc Selector switch
US2197501A (en) * 1938-04-23 1940-04-16 Bell Telephone Labor Inc Control circuit for high speed selector
US2240039A (en) * 1938-07-09 1941-04-29 Bell Telephone Labor Inc Selector switch
US2330812A (en) * 1942-03-04 1943-10-05 Int Standard Electric Corp Selector switch

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653022A (en) * 1951-07-03 1953-09-22 Armstrong Westropp Antiinertia mechanism for sliding doors
US2753035A (en) * 1952-03-17 1956-07-03 Addressograph Multigraph Embossing machine
US2962772A (en) * 1957-10-18 1960-12-06 Proctor Silex Corp Movable carriage travel reversing mechanism
US2971389A (en) * 1958-07-21 1961-02-14 Leland F Blatt Reversing stroke retractor mechanism
US4277189A (en) * 1976-06-03 1981-07-07 Centronics Data Computer Corp. Bidirectional carriage drive employing a closed loop belt drive means for printers and the like
US4198170A (en) * 1977-05-13 1980-04-15 Triumph Werke Nurnberg A.G. Single element typing for left to right or right to left letter feeding
US4286888A (en) * 1978-12-28 1981-09-01 Centronics Data Computer Corp. Bi-directional belt drive, print head mounting means and printing plane adjustment means for serial printers
US20190316727A1 (en) * 2018-04-13 2019-10-17 Rolls-Royce Power Engineering Plc Apparatus
US10753524B2 (en) * 2018-04-13 2020-08-25 Rolls-Royce Plc Manipulator apparatus for processing pressure vessels

Also Published As

Publication number Publication date
ES173128A1 (es) 1946-05-01

Similar Documents

Publication Publication Date Title
US2490035A (en) Mechanism for reciprocating brush carriages of selector switches or the like
US4084681A (en) Drive system for writing carriages in printing systems
US2911835A (en) Traversing arrangement
US4018328A (en) Means for producing a dual acceleration-deceleration movement for a transfer shuttle
US3383929A (en) Machines for handling sheets
US2128964A (en) Web feeding mechanism
US2509533A (en) Rippler attachment for icing machines
US2933180A (en) Transfer mechanism
ES513460A0 (es) Dispositivo de embrague, especialmente para una maquina textil.
KR900001009B1 (ko) 테이프 레코더
US2520131A (en) Selector switch carriage control means
CN109305516A (zh) 一种能实现近矩形运动轨迹的推料机构
US2517546A (en) Reciprocating drive mechanism for automatic selectors and similar devices
FR2329563A1 (fr) Dispositif d'entrainement avec un organe de retenue pour degrouper des objets plats
US3937102A (en) Noise suppression
US2622164A (en) Sequence relay
US2510084A (en) Reciprocating drive mechanism for automatic selectors and similar devices
US3050969A (en) Shock absorber for straight bar knitting machine
US2298273A (en) Registering device
US3036692A (en) Parts transfer mechanism
RU2065541C1 (ru) Демпфер сухого трения
US2886974A (en) Snap action motion reversing mechanism
US3020773A (en) Apparatus for converting reciprocating into intermittent motion
US3516601A (en) Punching apparatus
US3198428A (en) Selectively controlled oscillating device