baber/WOPTO huggingface dataset:
Patent GB-750761-A (GB)
Title: Improved process and apparatus for the continuous production of curled elastic threads and yarns from thermoplastic threads
IPC: D02G1/02
Filed: 1954-06-21
Abstract: 750,761. Crimping yarns; twist. - tubes- NAAMLOOZE VENNOOTSCHAP ONDERZOEKINGSINSTITUUT RESEARCH. June 21, 1954 [July 14, 1953; Dec. 29, 1953], No. 18189/54. Classes 120 (2) and 120 (3). In a process for curling thermoplastic yarns or threads, e.g. threads produced from polyvinyl chloride, polyethylene, polyvinylidene chloride, polyacrylonitrile, polyamide, polyesters such as polymethylene glycol telephthalate, or copolymers thereof, the thread is taken off by a conveyer at a uniform speed through a hot air zone via a false-twister preceding the conveyer and delivering the yarn in a ballooning manner: a low tension, i.e. not exceeding 15 grms. per 100 denier, in the yarn before the twister and in the hot zone is maintained uni- 'form and the yarn is cooled as by passage through the atmosphere or cooled air or by subjection to a current of cool air. In the operation of the apparatus of Fig. 1, a thread runs from a cone 2 over a disc 3, through an adjustable thread brake 4, a tube 5 heated electrically or by hot air or inert gas entering through a tube 9 and leaving by openings 10 and 11, a cooling zone 6, and a false-twister 7 which the thread leaves in a ballooning manner and is drawn off at uniform speed by means of a triple roller 8. The twister 7, Fig. 2, consists of a hollow spindle 14 rotating in a sleeve 12 of a fixed arm 13 by means of ball bearings 15 and 16 : the bore 17 in the spindle 14 merges into a buffer disc 18 carrying a discharge disc 19 and having an extension 20 over which runs a driving-belt 20. As shown in Fig. 3, a thread 1 is drawn off a cone 2 and runs over a thread guide 31 and a roller 22 to an adjustably driven conveyer device 23 consisting of a triple roller, through the twister 7, a thread guide 24, to the triple roller 8. A sheet of twisted threads may be passed through a common heating tunnel of trumpet form, and the heating tube or tunnel may comprise detachable portions.
Patent GB-169792-A (GB)
Title: Improvements relating to locks or latches for use upon motor vehicles and for other purposes
IPC: E05B53/00
Filed: 1920-07-02
Abstract: 169,792. Wilkes, J., and Wilkes & Sons, Ltd., S. July 2, 1920. Bowden mechanism.-In a lock for the doors of motor vehicles &c., operable from a distance through Bowden wire or equivalent mechanism, two spring pressed bolts 7 are connected for simultaneous operation by a cross-bar 8 situated between abutments 13 on the casing 10 and blocks 14 on the bolts, to which cross-bar one end of the Bowden wire &c. 4 is connected. In the construction shown, the other end of the wire 4 is connected to a depending flange 3 on a pivoted lever 2, the flange having a cut-away portion 18 oo-operating with a limiting-stop 19 on the casing 1. The bore of the opening 5 on the casing 1 receives the inner wire, but serves as an abutment for the Bowden. wire casing 6. The Bowden mechanism may be adjusted by rotating the screwed sleeve 16 in the part 15 on the casing 10, the nut 17 locking the sleeve in its adjusted position.
Patent GB-896608-A (GB)
Title: Improvements relating to navigational aids
Inventor: MILLANE MICHAEL JOHN
IPC: G01S1/68
Filed: 1957-06-07
Abstract: 896,608. Radio navigation. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 8, 1958 [June 7, 1957], No. 18248/57. Class 40(7). A proportion of the output energy of conventional radar equipment carried by a vessel or vehicle is modulated by signals indicative of the course and intended changes of course and radiated from an auxiliary aerial unit. The latter may consist of a single omnidirectional aerial or may comprise a pair of elements positioned on each side respectively of the vessel or vehicle. Fig. 2 shows an embodiment employing the latter arrangement in which a directional coupler 9 supplies a small proportion of the output energy of a conventional ship's radar 4 to a starboard aerial 11 and a port aerial 12 via a switch 13 which is operated by a keying unit 14 to cause the aerials to transmit complementary Morse code signals consisting either of one pair of letters e.g. B and V from port and starboard aerials respectively or of a plurality of complementary pairs in an agreed code. On another vessel equipped with similar apparatus the course signals are received by the radar aerial 6 and supplied via a T.R. cell 8 to a receiver 15 and thence to head phones 17. The keying unit 14 may comprise photo-electrically scanned perforations in the surface of a drum the rotation of which is controlled by a gyro compass.
Patent GB-1147752-A (GB)
Title: Rotary bearings
Inventor: KIDBY JAMES CLARENCE
IPC: F16C33/20
Filed: 1965-04-30
Abstract: 1,147,752. Bearings. SILENTBLOC Ltd. 26 July, 1966 [30 April, 1965], No. 18323/65. Heading F2A. A bearing assembly comprises an outer member 1, Fig. 1, having one or more bushes 4 of non-metallic moulded material, such as polyurethane, keyed or bonded thereto; and an inner member 2, having an integral flange 3 at each end thereof. The bushes 4 are provided with angularly-spaced axially-extending oil-grooves 6 and flanges 5 having annular ribs 6A which engage the flanges 3 of the inner member 2. In a modification, the bushes 5 are provided with radially-inwardly directed ribs 8, Fig. 2, and enlarged bore portions 9, which prevent radial stresses being applied to the flanges 5.
Patent GB-935080-A (GB)
Title: Intermittently-acting clutch gear under the control of two coaxial rotary members and its application to a baling press for straw or fodder
IPC: F16D11/06
Filed: 1960-05-24
Abstract: 935,080. Baling presses. SOC. DES ETABLISSEMENTS RIVIERRE-CASALIS. May 24, 1960 [May 26, 1959], No. 18330/60. Class 94(1). [Also in Group XXIV] A press for baling straw, &c. comprises a driving shaft 2 acting through a link 3 upon a ram 4 oscillating in a channel 5, the driving shaft being connected by a chain 20 to a sprocket 17 forming the driving member of a positive one-revolution clutch automatically engaged and disengaged to drive a knotter shaft 11 and actuate needles 14. The clutch (see Group XXIV) is controlled by a link 47 sliding in a support 49 and itself slidably supporting a rack 50 meshing a pinion 53 fast with a gear 54 engaging the bales which emerge between fixed and adjustable jaws 6, 7. Rotation of the gear 54 slides the rack 50 leftwards of the Figure against the bias of the spring 51 until it engages an adjustable stop 52, further rotation of the gear 54 &c. then sliding the link 47 leftwards to turn a clutch control lever 35 and engage the one-revolution clutch. The knotter shaft 11 accordingly rotates, and a crank arm 25 fast therewith connected to a link 28 raises the latter to turn a crank 13 and operates the needles 14, simultaneously drawing the clutch control link 47 downwards so that the rack 50 no longer meshes the pinion 53. The spring 51 draws the rack 50 back to the right of the Figure, and simultaneously a spring 48 draws the clutch control link 47 rightwards, so that the clutch control arm 35 is re-positioned in the path of a projecting arm of a pawl 27 comprising the drive transmitting member of the clutch. On completion of a revolution of the shaft 11, the needles 14 are restored to the position shown, the rack 50 once more meshes the pinion 53 fast with the bale engaging gear 54, and the clutch is disengaged by abutment of the pawl arm against the clutch control arm 35 until another cycle of operations is commenced by the sliding of the control link 47. The jaws 6, 7 can be joined by means of a safety device limiting the maximum effort exerted by the compressed material while in the machine, and the jaws 6, 7 can be provided with bale retaining members 9 each having a brake 10 associated therewith.
Patent GB-497313-A (GB)
Title: Improvements relating to spindles for ring spinning, doubling and twisting machines
IPC: D01H7/18
Filed: 1938-06-21
Abstract: 497,313. Ring spinning &c. spindles. KOWARICK. JUN., F., and KOWARICK, A. F., (trading as KOWARICK & CIA, F.). June 21, 1938, No. 18414. Convention date, July 17, 1937. [Class 120 (ii)] Ring spinning, doubling and twisting spindles, of the kind in which the yarn is coiled around the spindle in its passage from the guide to the traveller, are provided with an enlarged terminal head A<1> having vertical or inclined grooves for engaging the yarn. The head may be, as shown, of spherical or hemispherical, of ogive or semi-ogive, elliptical or semi-elliptical, or conical or frusto-conical configuration.
Patent GB-1048917-A (GB)
Title: Oxide reduction process
IPC: C21B13/00
Filed: 1964-05-04
Abstract: <PICT:1048917/C6-C7/1> Metal oxides are reduced by passing them upwards through a reduction zone while suspended in a reducing gas, the gas being supplied at 900 DEG -1350 DEG F. and at least 150 p.s.i. and the load of metal oxide being in the range 0.05 to 15 lb. of oxide per cubic foot of gas under the prevailing conditions. The gas is preferably hydrogen, but methane and carbon monoxide may also be present.  As illustrated in Fig. 1, the oxide is subjected to three stage series reduction in reactors 16, 34 and 54, a fresh supply of gas being provided for each reactor. In a modified arrangement (Fig. 3, not shown) the reactors are arranged so that the gas passes through them in series counter current to the ore while in the further modification of Fig. 4, (not shown) the reactors 126 are arranged in series, but the oxide as it settles into vessels 145 is subjected to a stream of fresh reducing gas supplied through pipes 148.
Patent GB-1408512-A (GB)
Title: Direct current power supply for manual arc welding
IPC: B23K9/073
Filed: 1973-04-17
Abstract: 1408512 Automatic control of arc welding ESAB Ltd 17 April 1973 [18 April 1972] 18502/73 Heading G3R A controlled rectifier D.C. power supply for manual arc welding has current and voltage feedback loops, the voltage feedback signal being adjustable to vary the slope of the steeply drooping characteristic of the supply. As shown (Fig. 1), a welding electrode 5 is supplied from a three-phase transformer 1 over controlled rectifiers 2 and a polarity switch 4. A unit 8 produces triggering pulses for the rectifiers 2 in response to the output from an amplifier 9 which receives an input in the form of the algebraic sum of currents in resistors 10, 11, 12. The current in resistor 10 is proportional to the welding current measured by a resistor 15, while the current in resistor 11 is proportional to the welding voltage appearing across a potentiometer 16. Resistor 12 is connected to a D.C. source 14 over a potentiometer 13 and produces a reference current opposed to the currents in resistors 10, 11. The feedback arrangement produces a steeply drooping characteristic, the slope of which is determined by the setting of potentiometer 16 and the short-circuit current being set by potentiometer 13. A contact 16b and capacitor 17 serve to reduce the slope during changing conditions. In a modification, Fig. 3 (not shown), auxiliary uncontrolled rectifiers are connected in parallel with the rectifiers 2 to improve arc stability at low currents, while a different potentiometer arrangement allows adjustment of the slope without significantly changing the operating current. A more detailed circuit, Fig. 5 (not shown), includes thyristors, Zener diodes, a potentiometer formed by a photo-resistor and light emitting diode, and a transistorized trigger circuit, Fig. 7 (not shown).
Patent GB-1062381-A (GB)
Title: Improvements in or relating to friction pad assemblies for disc-brakes
IPC: F16D69/04
Filed: 1964-05-04
Abstract: 1,062,381. Friction pads. REGIE NATIONALE DES USINES RENAULT. May 4, 1964 [May 10, 1963; May 25, 1963], No. 18503/64. Heading F2E. . A disc brake pad comprising a backing plate 2<SP>1</SP>, and friction material 3<SP>1</SP> covering the face 4<SP>1</SP> presented to the disc 1<SP>1</SP> and covering also the side of the plate in at least one position intended to abut with a stop 6 during braking, that portion of the backing plate supporting the material intended to abut the stop being inclined with respect to the face 4<SP>1</SP> towards the rear of the plate. The inclination 2 may be approximately that of the angle of friction between the material and the disc. The edge D may be chamfered or rounded, alternatively the inclined portion may have a surface extending parallel to the abutment face.
Patent GB-985562-A (GB)
Title: Improvements in or relating to the arrangement of water, air and heating units in dental units
IPC: A61C1/00
Filed: 1961-05-23
Abstract: 985,562. Dental stands. CHIRANA PRAHA NARODNI PODNIK. May 23, 1961 [June 3, 1960], No. 18520/61. Heading A5R. Means for regulating, heating and distributing air and water in a dental unit are arranged on a member which can be pulled out of the unit, the withdrawal of the member from the unit serving to break electrical circuits between the unit and the member at an electric plug. The electrical circuits are made, when the member is in the unit, by knife contacts 3. The member comprises a panel 1 on which are mounted an electromagnetic valve 4 in the water supply line to a dental spittoon, a reduction valve 6 and an electric heater 5 in a water supply line to a water spray nozzle 10 and an air spray mounting 7 having an air supply connection 8 and an air spray screw joint connection 9. An air spray connecting piece including an air heater electrically connected through the knife contacts may be fitted on the air supply connection 9. Heated and unheated water are mixed under the control of a mixing valve 23 so that water at a desired temperature flows to the spray nozzle 10. Sterile water may be supplied to the spray nozzle through a screw joint connection 12.
Patent GB-624840-A (GB)
Title: Alternating-current dynamoelectric machine
IPC: H02K15/02
Filed: 1947-07-11
Abstract: 624,840. Dynamo-electric machines. CASNER PATENTS, Inc. July 11, 1947, No. 18550. Convention date, Feb. 9, 1944. [Class 35] The stator of an A.C. machine, particularly a motor of hysteresis type, comprises a core stack of mutually insulated laminations 11, having external radial winding slots 11a closed by a magnetic yoke 14 embracing the core, and one or more bearing sleeve supporting plates 12, the core stack and bearing sleeve or sleeves being formed with a continuous cylindrical rotor bore therethrough. A sequence of operations is described in which the laminations 11 and end plates 12, which are insulated with certain specified adhesives, are assembled on a jig entering the rotor bore, baked under pressure to secure the laminµ together, provided with windings 13 and machined after varnish impregnation and further baking. The magnetic yoke 14, which is built up of annular laminations or magnetic strip, is then placed round the core and the rotor is inserted. The sleeves 15 are secured, e.g. by brazing to the end plates 12 and house bearings 16 for the shaft 17b of the rotor 17, the active part of which is composed of a cast hysteretic shell 17a. In a modification, the teeth are not flared at the outer ends and the laminations may be secured together by rivets. A slotwinding sequence is given. U.S.A. Specification 2,328,743 is referred to.
Patent GB-896114-A (GB)
Title: Improvements in or relating to commutators
IPC: H02K13/00
Filed: 1959-06-01
Abstract: 896,114. Commutators for dynamo-electric machines. FAULHABER, F. June 1, 1959, No. 18588/59. Class 35. In a commutator having a plurality of segments 2, each of which includes a first portion having a brush-engaging surface coaxial with and parallel to the commutator rotational axis and a second portion extending from the first portion in a direction away from and substantially perpendicular to the axis, at least a part of the second portion is embedded in an insulating body 3 and at least a part of the first portion projects freely from the body in an axial direction. The commutator is applicable to miniature motors requiring brush friction torque losses to be minimized, and the segments, five or seven in number, may be copper or silverpalladium circular cross-section wires bent to a U-shape and embedded in the body 3 which may be a die-cast or injection-moulded synthetic resin, the first portions being machined to be coaxial with the rotor shaft 1. Leads 5 from a rotor winding 6 are received by either those ends of the second portions which are remote from the first or, as shown, third portions 4 extending from such ends. Typical dimensions are described in the Specification.
Patent GB-1425956-A (GB)
Title: Gate controlled switches
IPC: H01L29/74
Filed: 1973-04-18
Abstract: 1425956 Semi-conductor devices SONY CORP 18 April 1973 [20 April 1972] 18693/73 Heading H1K In order to provide a thyristor with good gateturn-off performance one of the two interconnected notional transistors constituting the equivalent circuit of the thyristor has a currentamplification factor greater than 0À7 under conditions of high current with the base region, which carries the control electrode of the thyristor, grounded, while the other notional transistor has a conduction factor of less than 0À1. The conduction factor is defined as the ratio of output (anode) current to input (gate) current under constant gate voltage. An example of layer thicknesses, resistivities, &c., which would fulfil these requirements is given in the Specification. Air may be diffused into the device. Fig. 8 shows a thyristor having a plurality of guard rings 5 around the junction between the intermediate regions 2, 3, and also having a corrugated periphery to its cathode emitter region 1.
Patent GB-333993-A (GB)
Title: Improvements in and relating to troughs and the like for kneading, mixing and other treatments
IPC: B01F7/04
Filed: 1929-06-18
Abstract: 333,993. Baker Perkins, Ltd., and Webb, R. H. June 18, 1929. Containers.-A trough or mixing-machine comprises an interior shell and an outer shell forming a jacket, the two being connected by pads jointed to the outer surface of the lining mechanically, as by inserting the splayed ends of the pads into recesses in the lining. In the form shown, the trough has a copper lining 10 closed by end plates each of which has flanged openings for the mixing-shafts. The trough is shaped so that its arcuate portion extends above the plane of the shafts, and the lining is attached to the outer shell 15 by pads 17 which are attached to the lining by having their splayed ends fixed in recesses the edges of which are beaded over, the pads being secured to the shell by bolts 18. The ridge 19 is provided with trunnions 20 which pass through flanged holes in the end plates, metal packings or stuffing boxes being provided. The trunnions may be hollow for circulating brine and the flat part 23 of the lining may be pressed into contact with the base of the ridge by setscrews 24 and pads 25; or the base of the ridge may be sunk into a recess in the lining, the edges of the recess being then beaded over. The end linings are similarly connected with the shell walls, and the shaft bearings are supported by flanges in the lining embraced by inturned flanges on the shell, metal or other packing being provided. The trough may be discharged by tilting about bearings 35 for the main driving shalt, or a valved port in the base may be provided.
Patent GB-1505129-A (GB)
Title: Electronic circuit for operating a liquid crystal display cell
IPC: G04G9/00
Filed: 1975-05-05
Abstract: 1505129 Integrated circuits CITIZEN WATCH CO Ltd 5 May 1975 [16 May 1974] 18741/75 Heading H1K [Also in Divisions G2-G3 and H2] Two R-C networks are formed in an integrated circuit, each capacitance being formed by an electrode 107, 109 separated by an oxide film 103, 104 from a semiconductor region 101, 102 and each parallel resistance being formed by a reverse-biased p-n junction. For one network, the p-n junction is formed between the n-type substrate 90 and a p-type region 101; for the other it is formed between two differently doped regions 100, 102.
Patent GB-575163-A (GB)
Title: Improvements in or relating to shaft and like couplings
IPC: F16D3/68
Filed: 1943-11-12
Abstract: 575,163. Shaft couplings. COOK, F. F., and POLLARD, E. Nov. 12, 1943, No. 18879. [Class 80 (ii)] For coupling two shafts 1, Fig. 1, a collar 2 with a cylindrical extension 4 is secured to one of the shafts, the extension having a number of radial projections 5. The other shaft also has a collar 6 provided with radial projections 7 adapted .to extend into and partly to fill the spaces between, the arms 5. The arms are so shaped as to form parts of cylinders, and short cylinders 9 of elastic material are inserted in the spaces between the arms. To simplify manufacture, the recesses providing the spaces may, in the member 4, be somewhat in the form of a trefoil opened out at the bottom as at r, and such as may be easily made by three borings side by side. In the member 6, the surface between the part cylindrical side of each arm 7 and the adjacent side of the next arm may be flat. For keeping the coupling and retaining the elastic bodies 9 in their recesses, a cylindrical cover 12, Fig. 2, with'flange 13 and secured by a circlip 14 is provided. In a modification, instead of the cover 12, the members 2, 6 are split in two, axially, to facilitate assembly on the shafts and the halves are held together by keys of double-taper or waisted section. This coupling allows of lateral misalignment. Where universal characteristics are required, the member 6, Figs. 8, 9, has the normal spherical form with the arms 7 spaced around it, and the member 2, which is divided at the line G-H, has corresponding spherical formations. In order to take the bearing between the arms 7 and the elastic bodies 9 and prevent wear of the latter, bearing plates or liners 30 of an undulating section are provided.
Patent GB-356340-A (GB)
Title: Improvements in and relating to the manufacture of mixed esters
IPC: B65H63/00
Filed: 1930-06-20
Abstract: The alcohol ingredient or ingredients of an alkyd resin is completely blended with a pre-heated drying or semi-drying oil or mixture of such oils and the acid ingredient or ingredients are then added and the mass completely esterified.  In an example (1) preheated linseed oil is blended with glycerine and finally esterified with phthalic anhydride and in further examples (2) chinawood oil, glycerine and phthalic anhydride, (3) chinawood oil, glycerine, phthalic anhydride and rosin (abietic acid), (4) chinawood oil, cotton seed oil, glycerine, diethyleneglycol, phthalic anhydride and rosin, (5) linseed oil, glycerine, phthalic anhydride and the fatty acids of linseed oil, (6) linseed oil, glycerine, glycol, phthalic anhydride and the fatty acids of linseed oil are blended and condensed as in example 1. Specifications 285,459, 316,319, and 316,914, [all in Class 2 (iii), Dyes &c.], are referred to.
Patent GB-460767-A (GB)
Title: Cellular air screw propeller and the like
IPC: B64C11/16
Filed: 1935-07-03
Abstract: 460,767. Screw propellers and rotary - wing systems. CRUTCHLEY, W. G. G. July 3, 1935, No. 18987. [Classes 4 and 114] The blades of a screw propeller or like rotary - wing structure are formed of open cells or tubes a placed with their axes along the line of pitch.. The blades themselves may be mounted so that the pitch is adjustable.