baber/WOPTO huggingface dataset:
Patent GB-1036909-A (GB)
Title: Improvements relating to internal shoe drum brakes
Inventor: DUDLEY JOHN TREVOR
IPC: F16D65/14
Filed: 1963-06-08
Abstract: 1,036,909. Internal shoe drum brakes. GIRLING Ltd. May 27, 1964 [June 8, 1963], No. 22946/63. Heading F2E. In a duo-servo type internal shoe drum brake which includes a cam or other mechanically operated device for separating the shoes, an operating cable is secured to the cam or other device and is passed over a quadrant which is pivoted to the back plate of the brake independently of the cam, there being means whereby relative sliding movement between the cable and quadrant is prevented. As shown applied to a brake operated both hydraulically and mechanically, the mechanical operating mechanism includes a quadrant 31 pivoted on a bracket 33 secured to the back plate 12 and rockable about an axis perpendicular to that of the brake. The cable 28 is secured at its end to a cam 20 and rests in a groove in the quadrant, passing from the latter through a hole 29 in the back plate which is sealed by a rubber boot. Alternatively, the back plate may have a recess so that the quadrant may be located within the recess on the exterior of the back plate and the cable led through a hole in the back plate to pass between the quadrant and the cam. The cam comprises a plate having raised portions 26 (Figs. 5 and 6, not shown) on its rear face adapted to be disposed between blocks 27 which are welded on or integral with a pair of shoes 10, 11. A slot 25 in the cam receives a pivot pin 22 formed by an eccentric extension of an anchor pin 19 (Fig. 2, not shown) secured to the back plate for engagement with the shoe ends when in the rest position, so that the cam can float, the other ends of the shoes being connected by a floating adjuster (not shown). The cable 28 is operated by a hand lever, normal service operation of the brake being by an hydraulic cylinder 16 mounted on the back plate inwardly of the anchor pin 19.
Patent GB-1039383-A (GB)
Title: Production of copolymers of vinylidene chloride and acrylonitrile which give clear solutions in organic solvents
Inventor: RUNKEL WALTER
IPC: C08F214/08
Filed: 1963-06-10
Abstract: Copolymers of acrylonitrile and preponderant amounts of vinylidene chloride are prepared by copolymerizing the monomers in aqueous emulsion in the presence of 0.5 to 10% by weight, based on the total monomer, of dimethyl formamide.  A minor proportion of one or more other monomers, e.g. vinyl sulphonic acid, acrylic acid or maleic anhydride, may also be present, and polymerization may be effected in the presence of hydrogen peroxide or potassium persulphate, or mixtures thereof with formaldehyde sulphoxylate, sodium bisulphite or ascorbic acid; and emulsifiers, e.g. alkali metal salts of sulphonic and fatty acids.  In an example, vinylidene chloride, acrylonitrile and acrylic acid are copolymerized in an aqueous medium in the presence of potassium persulphate, ethylhexyl thioglycollate, sodium bisulphite and dimethyl formamide to give a copolymer readily soluble in toluene/methyl ethyl ketone mixtures.
Patent GB-1177492-A (GB)
Title: Improvements in or relating to Tiled Roofs.
IPC: E04D1/04
Filed: 1966-02-01
Abstract: 1,177,492. Tiling roofs. REDLAND TILES Ltd. and G. H. CARTER. 24 Jan., 1967 [1 Feb., 1966; 23 May, 1966], Nos. 4442/66 and 22959/66. Heading E1B. Concrete tiles 10 are arranged side-by-side with gutters 19 of, e.g. polyvinyl chloride placed under the adjacent tile edges. The gutters are each of generally rectangular crosssection, with or without a central rib 26, having transverse lower flanges 22, 24 and 25 and a transverse upper flange 21. The tiles 10 have, on their lower faces, recesses 28, ribs 13, longitudinal ribs 18 in rebates 17, and transverse ribs 16 and 27, and transverse ribs 14 and 15 on their upper faces. In use, the ribs 13 engage against the battens 11, as do the flanges 22 on the gutters (Fig. 1), the upper flange 21 on each gutter engages the upper edges of the two adjacent tiles, and the flange 25 can lie anywhere between the ribs 14 and 15. The flange 22 is reinforced by a web 23 (Fig. 1), which may be of elongated trapezoidal shape (Fig. 21, not shown). The gutters may also be of metal, ceramics, concrete or a fibrereinforced thermosetting resin.
Patent GB-1292787-A (GB)
Title: Benzodioxane derivatives and pharmaceutical compositions containing them
IPC: C07D498/10
Filed: 1971-04-19
Abstract: 1292787 Oxadiazaspiro-decane and -undecane compounds YOSHITOMI PHARMACEUTICAL INDUSTRIES Ltd 19 April [27 Feb 1970 24 Dec 1970 (3)] 22985/71 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable acid addition salts, wherein R is H, halogen, or C 1-4  alkyl or alkoxy; R<SP>1</SP> and R<SP>2</SP> are each H, C 1-4  alkyl or Ph; R<SP>3</SP> is H or C 1-4  alkyl; A is C 1-4  alkylene and n is 0 or 1. These compounds are prepared by reacting (1) the corresponding 1- (benzo - 1,4 - dioxan - 2 - yl) alkyl - 4 - piperidone with HOCR<SP>1</SP>R<SP>2</SP>(CH 2 ) n CONHR<SP>3</SP>, or (2) the corresponding 2 - haloalkylbenzo - 1,4 - dioxan (or the analogue containing a reactive radical instead of halogen) with the N<SP>8</SP>-unsubstittitedoxadiazaspirodecane or with the N<SP>9</SP>-unsubstituted-oxadiazaspiroundecane. Therapeutic compositions for oral or parenteral administration comprise compounds of the above formula, which are vasodilators for the treatment of peripheral vascular disturbances.
Patent GB-342283-A (GB)
Title: Process for the catalytic manufacture of synthetic acetic acid
IPC: B01J23/88
Filed: 1929-07-26
Abstract: 342,283. Acetic acid. SOC. FRANCAISE DE CATALYSE G•N•RALIS•E, 30, Avenue des Champs-ElysÚes, Paris. July 26, 1929, No. 23000. Convention date, Jan. 11. Void [Published under Sect. 91 of the Acts]. [Class 2 (iii).] Acetic acid is obtained from carbon monoxide and hydrogen by means of catalysts comprising one or more of the following bodies, viz nickel, cobalt, chromium, their oxides and carbonates, and manganese carbonate. The gases are passed through a tube which may be lined with copper and contains the catalyst, heated by electric resistances. The treatment is effected at a suitable temperature and pressure.
Patent GB-1515203-A (GB)
Title: Warp beam drives for looms and knitting machines
IPC: D03D49/10
Filed: 1976-06-04
Abstract: 1515203 Warp beam drives DENCO AG 4 June 1976 [4 June 1975] 23080/76 Heading DIE A steplessly variable-speed warp beam drive controlled by a movable back rest 18 and including a pair of split-pulleys 6, 8 is characterized in that the split-pulley system 6, 8 is capable of giving an overall speed ratio of 10:1 and that there are means 3, 4 for altering the speed at which a drive 2 from a loom or knitting machine rotates the pulley 6. In Fig. 1 the means 3, 4 is a worm and worm wheel set that may be replaced by an alternative set to effect a change in gearing in the drive to the pulley 6. In Fig. 2 the output of the split-pulley 8 drives a worm 10 that in turn drives a worm wheel 11 fast on the shaft 12 that drives the beam. The reason for this is that the worm 10 holds the wheel 11 against back rotation, due to warp tension, whilst the gear means 3, 4 is temporarily removed and replaced with fresh gear means of a different ratio. In addition the split pulley 8 is connected to the worm 10 via two pinions 30, 31 geared together. The gears 30, 31 are interchangeable. In place of the pinions 30, 31 a chain drive may be used. Figs. 3 and 4 (not shown) illustrate an embodiment in which the shafts 5 and 9 of the pulleys 6 and 8 extend at right angles to the side of the machine so that the planes in which the pulleys 6 and 8 rotate are parallel to the side of the machine. This is stated to facilitate the accommodation of large diameter pulleys.
Patent GB-1495485-A (GB)
Title: Decorative sheets having a three-dimensional pattern for walls ceilings or furniture and process for manufacturing the same
IPC: D06N3/06
Filed: 1976-06-04
Abstract: 1495485 Foam coated sheets TOKIWA LEATHER INDUSTRIAL CO Ltd 4 June 1976 [18 June 1975] 23136/76 Heading B2E A decorative sheet having an embossed pattern thereon is prepared by coating a base sheet of paper fabric or non woven fabric with a paste comprising a synthetic resin, e.g. polyvinyl chloride, a plasticiser, a blowing agent, a stabiliser, a pigment and a colouring agent and drying by heating, e.g. at 150C. Then the coating layer is foamed, e.g. by heating at 200C, uniformly pressed and cooled to smooth and temporarily solidify the foamed layer and the surface of the foamed layer is heated, e.g. to 120C, before hot embossing. A coating composition comprising a colouring agent, a synthetic resin and a plasticiser may be applied to the depressed bottom surface of the pattern to be formed by embossing. Other synthetic resins which may form the foamed layer include polyvinylidene chloride and polyvinyl acetate.
Patent GB-854034-A (GB)
Title: New cyclopentanophenanthrene derivatives and process for the production thereof
IPC: C07J75/00
Filed: 1957-03-08
Abstract: The invention comprises compounds of the formulae : <FORM:0854034/IV(b)/1> and <FORM:0854034/IV(b)/2> wherein R and R2 are lower alkyl of less than 7 carbon atoms, R1 is hydrogen or an acyl group and X is a double bond between C4 and C5 or a saturated linkage characteristic of the allo series, together with a process for their preparation by treating the corresponding 3-keto compound with an alkali metal double hydride reducing agent, e.g. sodium borohydride.  Examples detail the preparation of 2,2-dimethyl-\se4-androstene-3,17b -diol, its diacetate, dipropionate, dibutyrate, dibenzoate, the corresponding 2,2,17-trimethyl-2,2-dimethyl-17-ethyl- and 2,2-dimethyl-17-propyl\se4-androstene compounds and their saturated (androstane) analogues.
Patent GB-867519-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/04
Filed: 1957-07-24
Abstract: 867,519. Sliding clasp fasteners. RYSER, E., and VOUMARD, B. July 24, 1957, No. 23441/57. Class 44. A covered sliding clasp fastener has interlocking fastener members 1, secured in longitudinally spaced relation to opposing stringer tapes 6 to form a pair of stringers, the fastener members being symmetrical relative to the median plane of the stringers and each provided with a coupling head 2 and with integral tape engaging legs 5, wherein portions of the stringer tapes emerge from both sides of the fastener members and laterally of the coupling heads, approximately on the level of the longitudinal centre plane of the fasteners extending at right angles to the median plane of the stringers so that when the fastener is closed portions of the tape emerging from the fastener members of one stringer make contact with portions of the tape emerging from the fastener members of the other stringer. As shown in Fig. 5 the legs 5 are hookshaped and the stringer tapes 6 are made in two parts, their beaded edges 7 being engaged by the legs 5. In a modification instead of the legs 5 being initially bent to hook shape they are straight and are bent to hook shape in the attachment of the stringer tapes to the fastener members. With these straight legs the stringer tape instead of each being in two parts can be a single tape provided with central slots to receive the legs; one or more beads can be provided centrally of the tape if desired. In a further construction, Fig. 30, the fastener members are diecast directly upon the stringer tapes. In all constructions the two portions of the stringer tape emerging from the fastener members can be sewn together behind the fastener members. Where two part stringer tapes are used, clips can be used at the ends of the stringers to clamp the tape parts together.
Patent GB-834065-A (GB)
Title: Improvements in or relating to conveyor systems
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B61B10/00
Filed: 1957-07-24
Abstract: 834,065. Endless chain conveyers. KING Ltd., G. W. July 24, 1958 [July 24, 1957], No. 23451/57. Class 78 (1). In a conveyer system of the kind in which load carriers 13 are supported on an endless chain 11 provided with supporting rollers 14 on which the carriers rest, so that the carriers can be stopped without discontinuing the drive of the chain, a branch conveyer line 15 diverges from the path of the chain 11, a switch 19 pivotable across the path of the carriers is provided to deflect carriers to the branch line, and a transfer arm 17 is pivoted at 16 and swingable by a ram 23, the arm 17 carrying a pusher 18 to engage a carrier to be transferred and propel it past the switch on to the branch line. The pusher 18 is pivoted to the arm in such manner that a carrier moved by the chain 11 pivots it upwards to pass in front of it, after which theram 23 is operated under control of a valve 31 operated by contact of a vertically adjustable peg 35 on the carrier with valve-operating arm 32. The switch 19 is pivoted across the path of the carrier prior to the operation of ram 23 by a lever 21 which is swung about a pivot 22 by a ram 20 controlled by a valve 28, the operating arm 27 of which is engaged by the peg 35 prior to engagement of the latter with the arm 32. A pivoted stop 30 to arrest following carriers is actuated simultaneously with the pivoting of the switch 19 by a ram 29 also controlled by the valve 28. As the transfer arm 17 is swung into the position at which transfer is completed it engages a peg 25 on a resetting lever 24a, 24b, the latter portion of which through a chain 26 resets the operating lever 27 of valve 28. A second chain 26 connects the lower ends of the valve-operating levers 27 and 32 together so that lever 32 is also reset. The carriers may be set for diversion or uon-diversion at the junction according to the position of the peg 35 on the load arm 34. The branch line may either consist of a second driven chain 11, or be a level or inclined rollerway.
Patent GB-684882-A (GB)
Title: Improvements in or relating to control systems for electric motors
IPC: B65H23/198
Filed: 1950-09-25
Abstract: 684,882. Control of two motors. IGRANIC ELECTRIC CO., Ltd. Sept. 25, 1950 [Sept. 24, 1949], No. 23459/50. Class 38 (iii) A motor 19 drives a wind-up reel 13, a motor 14 driving work rolls 11, 12, for reducing a strip of material and feeding it to the wind-up reel, and, since the gauge of the strip is affected both by the tension of the strip between the work rolls and the wind-up reel and by the speed of the strip, the motor 19 is controlled so as to vary the tension of the strip as a function of the speed thereof in such a way as to make the gauge of the strip substantially constant. The motors are supplied from Ward-Leonard generators 17 and 21 and the field winding 19a is regulated by means of a bucking exciter 24 in a manner similar to that described in Specification 684,881. The exciter has a field winding 28 which is energised in accordance with the armature current of the motor 19 and a reference winding 30, the arrangement being such that when the strip is advancing at a steady speed the tension is maintained substantially constant. The magnitude of the current passing through the winding 30 is adjusted by means of a rheostat 34 in conjunction with another rheostat 32, the latter determining the change in excitation of the winding 30 for a given change of speed of the motor 14 as detected by a tachometer generator 31. The rheostats 32, 34, are respectively associated with rheostats 33, 35, in such a manner that the equivalent resistance in the control circuit of each set of rheostats is constant. The rheostats 32, 34, may or may not be constant in resistance per unit of length, the rheostats 33, 35, having the desired non-linear characteristics for providing constant equivalent resistance of each pair. This enables adjustment of either of the rheostat-sets 32-33 or 34-35 without one of such adjustments electrically upsetting the effect of the other. During changes of speed of motor 14 the excitation of the winding 30 is so changed that the speed of the motor 19 is compensated to provide the desired tension and offset the variation in gauge of the strip. The proper settings of the rheostat-sets 32-33 and 34-35 are determined from data obtained during test runs performed on the strip. As shown, the system is applied to the condition in which the gauge decreases with increase of speed, interchanging the connections of generator 31 adapts the system to the alternative condition. When it is not desired to connect the reference field winding 30 directly to one side of the source of supply, the modification of Fig. 4 (not shown) is used. This involved the use of two tachometer generators on the same shaft and a more complicated arrangement of rheostats in the circuit of the reference field winding.
Patent GB-703830-A (GB)
Title: Tool for deforming sheet metal articles or profiled elements
IPC: B21D11/08
Filed: 1952-09-18
Abstract: 703,830. Forging; bending. ECKOLD, G. J. Sept. 18, 1952, No. 23485/52. Addition to 685,402. Class 83 (4) The tool 2 for deforming by upsetting or drawing sheet metal articles and profiled elements described in the parent Specification is modified in that the steel laminations 3 supporting the jaws 1 bear in recesses 4 and are embedded along their free length in resilient material 5, for example rubber. The material 5 is surrounded by a retaining ring 6 pushed over the tool.
Patent GB-221955-A (GB)
Title: Improvements in perforating machines
IPC: B26F1/34
Filed: 1923-09-20
Abstract: 221,955. Parrett, F. G. Sept. 20, 1923. Perforating-appliances - A hand guided electrically actuated apparatus for perforating designs comprises solenoids A with reciprocating armature c operating a perforating needle. The apparatus is mounted on a flat base B shaped so as to be held, when in use, in a vertical position between the thumb and first finger of the hand.
Patent GB-494279-A (GB)
Title: Improvements in or relating to perforation controlled recording mechanism such as a printing mechanism
IPC: B41L47/58
Filed: 1937-08-27
Abstract: 494,279. Selective perforating-machines. MAUL, M. Aug. 27, 1937, No. 23558. Convention date, Aug. 31, 1936. Addition to 461,695, [Group XVI]. [Class 31 (ii)] [Also in Group XVI] The numeral representation of a counter is changed for each data-carrier or printing-device fed through a recording-machine such as an addressing-machine, the numeral representations on a perforated control sheet are compared with the counter, and the resulting agreement or disagreement is utilized to control the operation of recording-mechanism and means for feeding the data carriers or printing-devices. The data-carriers may be in the form of perforated cards, the perforations of which are duplicated by the recording-mechanism. The impression and feeding mechanism and the circuits employed in the machine described are substantially the same as those described in the parent specification but the contacts operated by tabs &c. on the printing-devices are now operated by the counter. The counter, which always indicates the number of the printing- device in printing position, is driven by an electromagnet 210, Fig. 7, which rocks a lever 218 about a pivot 217 whereby a pawl 220 having an over-centre adjustment about a pivot 219 advances either of two ratchets 224, 226 according to whether the numerals are to ascend or descend. With each numeral wheel there is associated a cam 237, Fig. 8, adapted to push outwardly four pins 244 singly or in various combinations according to the angular position of the cam, each pin acting on a contact 107. The contacts 107 take the place of the contacts affected by the address-plates described in the parent Specification for purposes of comparison with the contacts controlled by the perforations in the list sections of a record strip. Each narrow edge of each printing-device has a recess such that the adjacent recesses of two consecutive devices together form an elongated hole. A feeler 300, Fig. 2a, spring-pressed towards the devices is adapted to enter the hole and to be rocked on advance of a device to printing position so as to close a contact 202 whereby the magnet 210 for advancing the counter is energized. A second feeler 204 having a rounded feeling-portion 205 is spring- pressed towards the printing-devices so as to be lowered whenever a device is present, and closes one of two contacts 200, 250 whereby the comparing-mechanism is only effective if a device is in printing position. Specification 461,695 is referred to.
Patent GB-662605-A (GB)
Title: Improvements in or relating to oil burner nozzles
IPC: F23D11/24
Filed: 1949-09-13
Abstract: 662,605. Liquid-fuel burners. ROLLINSON, E. W. (Eureka Williams Corporation). Sept. 13, 1949. No. 23588/49. Class 75(i) In a burner nozzle having an outer tubular body 19 provided with a circular knife edge orifice 32 formed at the front end thereof, an inner tubular body 21 formed at its front end with an annular seat 38 which engages the outer tubular body to form on opposite sides of the seat 38 a tip chamber 39 and an annular mixing chamber 41, a plurality of similarly sloped spiral passages 49 formed on body 19 or 21 across the annular seat 38 having a cross-section less than that of the mixing chamber 41 and their opposite ends opening tangentially into the annular mixing chamber 41 and the tip chamber 39 to induce a unidirectional fluid rotation in chambers 41 and 39 and a plurality of oil supply ports 48 communicating with the interior of body 21 and arranged to discharge jets of oil into an air supply passage 29 in advance of the ends 53 of the spiral passages 49, the arrangement is such that the direction of flow of the mixture of oil and air is changed when passing from the mixing chamber 41 into the spiral passages 49 and from the tip chamber 39 through the circular orifice 32. The inner tubular body 21. of square cross-section in advance of the mixing chamber 41, is connected to a fuel supply conduit 26, Fig. 1, by a longitudinally movable tube 27 and is held in position within the outer tubular body 19 by a spring 28. The front face of the inner body 21 may be flat or provided with a conical tip 36 as shown. Liquid fuel and primary air are supplied to the nozzle by pumps at relatively low and equal pressures. The burner nozzle is disposed in a furnace front opening 13 in which is secured a shield 14 provided with holes 17 surrounding a central opening 16 for the passage of secondary air to a combustion chamber 11. The burner is ignited by a pair of electrodes 54. Specifications 627,109 and 655,404, [Group XXVIII], are referred to.
Patent GB-276841-A (GB)
Title: Improvements in connection with cooking vessel and like handles
IPC: A47J45/08
Filed: 1926-09-24
Abstract: 276,841. Bolton, E. M. Sept. 24, 1926. Handles. - Relates to handling devices of vulcanite, wood, or other heat-insulating material adapted to be attached by means of spring clips to the handles of cooking vessels or their lids. Fig. 1 shows a plate P of any suitable heat-insulating material provided with a metal clip C by which it can be attached to the handle h of a cooking vessel lid. Fig. 3 shows the form of clip C employed to grip a curved handle, and Fig. 5 shows a similar form in which the plate P has depending sides. Fig. 7 shows a pair of plates P attached to the sides of a clip C. Fig. 9 shows a heat-insulator P having a metal spring reinforcement i enabling it to grip the handle. Figs. 11, 13 show clips with slotted sides adapted to engage over the knob of a, saucepan lid. Reference has been directed by the Comptroller to Specification 4993/10.