baber/WOPTO huggingface dataset:
Patent GB-232722-A (GB)
Title: Improvements in or relating to valve apparatus for percussive rock drills and like fluid pressure operated tools
IPC: B25D9/18
Filed: 1924-02-06
Abstract: 232,722. Drinnan, J. Feb. 6, 1924. Fluid-actuated valve gears.-The valve comprises three coaxial parts, a central actuating- member j, and end members with heads 2, 3 controlling the main-cylinder admission and exhaust ports y, 5 respectively. Fluid pressure is supplied at e to branches f which communicate with the outer heads 2, and which have branches g, h leading to the member j. The inner ends d of the outer valve chambers are open to exhaust through ports 4, 5. The part comprises three heads q, r, s and outer reduced portions n, n<1> which slide in separate auxiliary cylinders which alternately communicate with the inlet and an auxiliary exhaust t through cross ports x, w. The passages g, t, h are controlled by the heads q, r, s respectively, and passages u, v, v<1> connecting the auxiliary cylinders with the main cylinder are controlled by the reduced portions n, n<1> and the main piston b. In the position shown, the piston b is moving to the left, fluid pressure is acting on part n through port w, and on head s through the branch h. When the piston b passes port v, the cylinder pressure acts on the head q and the valve is reversed.
Patent GB-1472841-A (GB)
Title: Polyimide powder composition
IPC: C08L79/08
Filed: 1975-01-24
Abstract: 1472841 Coalescible polyimide composition and porous polyimides E I DU PONT DE NEMOURS & CO 24 Jan 1975 3232/75 Headings C3R and C3C A composition comprises a coalescible polyimide powder and up to 50 wt. per cent of a solid particulate polymer of formaldehyde. The composition may be used to fabricate porous polyimide shaped articles by pressing at at least 10,000 p.s.i. to form a preform which is then heated at above 300‹ C. so as to coalesce the polyimide and remove the formaldehyde polymer providing an article with interconnecting pores. The composition may also include other materials such as particulate polymers, e.g. P.T.F.E., and finely divided metals, metal oxides, minerals, carbon, graphite, asbestos, glass, mica, vermiculite, kaolin and abrasives, e.g. silicon carbide, boron nitride or diamonds in amounts up to 70 wt. per cent of polyimide plus other material. Suitable polymers of formaldehyde are paraformaldehyde and trioxane. The polyimide may be derived from pyromellitic or 3,3<SP>1</SP>,4,4<SP>1</SP>-benzophenone tetracarboxylic dianhydride and m-phenylene diamine or 4,4<SP>1</SP>-diamino diphenyl ethers.
Patent GB-996708-A (GB)
Title: 1:4-benzodioxan derivatives
Inventor: GARDNER JOHN NICHOLSON
IPC: C07D319/20
Filed: 1962-01-29
Abstract: The invention comprises compounds including all stereoisomeric forms) of the general formula <FORM:0996708/C2/1> (wherein R1, R2, R3 and R4, which may be the same or different, are each a hydrogen or halogen atom or a C1- 3 alkyl, C1- 3 alkox or carbalkoxy group, and R5, R6, R7, R8 and R9, which may be the same or different, are each a hydrogen atom or a C1- 3 alkyl group) and their pharmaceutically acceptable acid addition salts, pharmaceutical preparations containing them, and their preparation by heating a compound of the formula (I) <FORM:0996708/C2/2> or an acid addition salt thereof with (a) cyanamide, or (b) a compound of the formula <FORM:0996708/C2/3> (wherein X is a group which will react with the amino group of (I) to give the required 2-guanidinoalkyl-1,4-benzodioxan), the product normally being isolated in the form of a salt in view of the instability of the free bases.  The following intermediates are prepared from the starting materials indicated in parenthesis: 2 - (1 - aminoethyl) - 1,4 - benzodioxan and its hydrochloride (catechol and 3,4-dibromobutan - 2 - one, via 2 - acetyl - 1,4 - benzodioxan and its oxime); 2-(1-aminoethyl)-5,8-dimethyl-1,4-benzodioxan and its hydrochloride (3,6 - dimethylcatechol and 3,4 - dibromobutan-2-one, via 2-acetyl-5,8-dimethyl-1,4-benzodioxan and its oxime); 5,8 - dimethyl - 2 - aminoethyl-1,4 - benzodioxan hydrochloride (3,6 - dimethylcatechol and ethyl a ,b -dibromopropionate, via 2 - carbethoxy - 5,8 - dimethyl - 1,4 - benzodioxan and 5,8 - dimethyl - 1,4 - benzodioxan - 2 - carbonamide, or 3,6-dimethylcatechol and epichlorohydrin, via 5,8 - dimethyl - 2 - hydroxymethyl - 1,4 - benzodioxan and 2 - bromomethyl-5,8-dimethyl-1,4-benzodioxan).  Some of the compounds of the invention have adrenergic nerve blocking activity, some have ganglion blocking activity and some have antihistamine activity.  The compounds may be administered orally or parenterally in the form of pharmaceutical preparations (e.g. tablets, pills, sachets, encapsulated powders, packaged powders, and sterile solutions and suspensions) containing them in association with a carrier.  Reference has been directed by the Comptroller to Specification 948,478,
Patent GB-1020626-A (GB)
Title: Heat treatment of deep drawing steel
IPC: C21D8/04
Filed: 1964-01-27
Abstract: A method of annealing aluminium killed steel comprises the steps of heating the steel at a rate of not less than 50  DEG C. per hour to a staging temperature below the recrystallization temperature and within a staging temperature zone of from 450-525  DEG C. causing the steel temperature to dwell in said staging zone at or above said staging temperature for a time of not less than 30 minutes and not more than 4 hours, then heating the steel to an annealing temperature within the range of from 600-750  DEG C. at a rate of not more than 150 Centigrade degrees per hour, holding the steel at the annealing temperature for a predetermined period and then allowing or causing the steel to cool to atmospheric temperature to produce an annealed steel.  The time for which the steel is held at the staging temperature, is dependent upon the temperature chosen for staging; i.e. the time varies in accordance with a straight line law from 4 hours at a staging temperature of 450  DEG C. to 30 minutes at a staging temperature of 525  DEG C.  Alternatively the staging period may be achieved by slowly heating the steel through a portion of the staging zone, having a span of at least 30  DEG C., at rate of 50 Centigrade degrees/hour or less.
Patent GB-1138115-A (GB)
Title: Controlling system using modulated light
IPC: G08B13/184
Filed: 1967-01-24
Abstract: 1,138,115. Burglar alarms. SERVODAN A/S. 24 Jan., 1967 [26 Jan., 1966], No. 3428/67. Heading G4N. In a system for detecting the passage of a person or object along a passageway, a light source and light receiver are installed together at one side of the passageway, a reflector and modulator being arranged at the other side of the passageway so as to reflect chopped (or modulated) light back to the receiver. The modulator may be a rotating perforated disc or may operate (in unspecified manner) by changing the plane of polarization. The receiver is arranged (in unspecified manner) to give a signal in the absence of light with the particular modulation.
Patent GB-693997-A (GB)
Title: Burner for gaseous fuel
IPC: F23D14/00
Filed: 1951-02-13
Abstract: 693,997. Gas burners. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Feb. 13, 1951 [Feb. 13, 1950], No. 3495/51. Class 75(i) A gas burner has an annular air outlet port formed between a mouthpiece 6 on. the end of an air duct 4 and the outlet end 8 of a gas duct 1, and an annular gas port between the outlet end of the gas duct 1 and an adjustable valve 2 situated centrally at the outlet end of the gas duct, and a set of helical channels or blades 3 in the gas duct adjacent its outlet end. The mouthpiece 6 on the end of the air duct is curved outwardly and extends beyond the end of the gas duct and the air outlet passage is of minimum cross section upstream of the gas outlet. The air duct 4 surrounds the forward part of the gas duct 1. Air inlets 14 near the rear end of the air duct are opened by an adjustable ring 5. The air may be supplied under pressure or it may be drawn in by the gas. The air may be given a rotary movement. The gas duct as closed at its rear end by a plug 12 and is provided near its rear end with a gas connection 7. The stem of the valve 2 extends through the gas duct and through the closure plug 12 with which it has threaded engagement. The helical blades are formed on a part of the valve stem or on the outlet end 8 of the gas duct.
Patent GB-750686-A (GB)
Title: Improvements in and relating to driving means particularly for sewing machines
IPC: D05B69/22
Filed: 1952-01-23
Abstract: 750,686. Sewing-machines. ROTHENBORG SPECIALMASKINER FOR SYINDUSTRIEN AKTIESELSKAB. Jan. 23, 1952 [March 30, 1951], No. 3503/55. Divided out of 750,603. Class 112. [Also in Groups XXXI and XXXVII] In a sewing-machine driving arrangement including a selectively-engageable reduced speed driver, for example as described in Specification 750,603, electrical control means are provided for stopping the machine in the desired position. These means may comprise a treadleactuated switch opening the circuit of an auxiliary driving motor, which switch may also control the direction of running of this motor, or the switch may be actuated automatically by the rotation of the machine. In the latter case, two alternative stopping positions may be provided for, selected by a treadle-actuated switch, and stopping in one of these positions may be preceded by reverse movement. Several forms of switch responsive to the position of the driven machine are described (see Group XXXVII), some of these being effective only at low speeds of rotation. Control arrangements involving one form of switch are shown in Fig. 20, according to which the flywheel of the machine carries four tubes S<1> containing mercury and connected to three contact rings R engaging stationary brushes B ; the upper brush is common to all the tubes, and the lower two, each connected to one pair of tubes, are alternatively connected in the circuit of a solenoid-actuated mercury switch AR controlling the auxiliary motor A by switches 274 actuated by auxiliary treadles P. These treadles may be incorporated in the clutch control treadle, for example, as shown in Fig. 7; according to the stopping position required, the foot is placed on the right or left side of the main treadle 300, depressing the corresponding treadle P and operating, in the arrangement shown, a selecting switch U. Alternatively the direction of slow running may be selected in the same way. When the machine is rotating fast centrifugal force holds the mercury at the outer ends of the tubes to keep the circuit closed, but when it is moving slowly the circuit is broken when both tubes of the pair selected by the switches 274 are in the upper part of their revolution. The angle between the tubes of a pair determines the angle over which the circuit remains open. Specification 750,690 also is referred to.
Patent GB-602461-A (GB)
Title: Improvements in electric vibratory interrupter
IPC: H01H50/76
Filed: 1945-02-13
Abstract: 602,461. Converting. PLESSEY CO., Ltd. (Mallory & Co., Inc., P.R.). Feb. 13, 1945, No. 3545. [Class 38 (ii)] [Also in Group XXXVII] In a system for energizing alternately the two halves of a transformer primary 51 and then delivering rectified current from the secondary 53 to a circuit 55 through rectifier contacts 26, 28, a vibratory reed 19 carries two armatures 20, 21 arranged between two electromagnets 13, 15 which are alternately shortcircuited at contacts 27, 29 so that the reed is maintained in vibration. The slight asymmetry that will always exist is sufficient to set the device in motion, one pair of poles 12, 16 or 14, 17 having a slightly greater effect than the other which increases with deflection. The contacts 26, 28 are arranged behind the contacts 27, 29, Fig. 2, and are engaged slightly later, the reed twisting slightly in the process.
Patent GB-1419755-A (GB)
Title: Construction sets for the construction of wooden articles for  instance toys
IPC: A63H17/00
Filed: 1974-01-25
Abstract: 1419755 Toy construction sets R.T KOHLER 25. Jan 1974 [26 Jan 1973] 03584/74 Heading A6S [Also in Divisions G2 and G3]  A construction set for the erection of a wooden article, e.g. a toy, comprises at least one wooden board having grooves milled in its surface to define parts of the article to be erected, the depth of the grooves being such that the parts may be easily cut out of the board and subsequently connected by glue and/or nails. As shown, a board has deep grooves 10, Fig. 3, defining parts 6 ..... 9 to be assembled as the cab 2, Figs. 1, 2, of a toy lorry. Shallow grooves 11 receive the edges of conjoined panels. In the toy lorry shown, slots 12 in the cab rear panel 8 slide over side chassis members 5 and the cab front panel 7 rests-on top of a chassis panel 4. The panels, &c. are secured by glue and/or nails. Nail holes may be formed in the grooves, &c. before assembly. The board may be. of solid or laminated wood.
Patent GB-1136947-A (GB)
Title: Improvements in or relating to agricultural vehicles
IPC: A01D87/00
Filed: 1966-01-26
Abstract: 1,136,947. Agricultural pick-up trailer. TEXAS INDUSTRIES Inc. 26 Jan., 1966 [11 Feb., 1965(2)], No. 3897/66. Heading B8E. [Also in Division A1] An agricultural trailer has a crop pick-up mechanism 6 and an endless conveyer 5 on its floor 4. The drawbar mechanism, Fig. 1, comprises beams 11, 12 pivoted on the beam 7 of the trailer and by pivots 15, 17 secured to support plates 13, 16 in turn secured to a beam 14 provided with a beam 18 and draw-hook 19. A pin actuated by a lever secures the plates 16 in the two positions shown relative to the beam 11 so that when towing the tractor can be in line with the trailer or offset as shown to allow the pick-up mechanism to operate. An alternative drawbar mechanism Fig. 5, comprises a drawbar 49 pivoted on a horizontal axis in a support 47 and movable about the pivot between the positions shown. Castor ground wheels 46 support the front of the vehicle while the drive to the pick-up and loading mechanism 6 is from a power take off 60 through a chain drive 57 to a gear box 58. Reference has been directed by the Comptroller to Specification 1,094,402.
Patent GB-874947-A (GB)
Title: Improvements in or relating to earthing electrodes
Inventor: SEVENSTER SIEBE
IPC: H01R4/66
Filed: 1958-02-04
Abstract: 874,947. Earthing electrodes. HOMMEMA VAN 1825 N.V. Feb. 4, 1958, No. 3652/58. Class 36. In an earthing electrode of the kind comprising a conductor wire 2 passing through a plurality of tubular conducting rods 1 connected by couplings 8, each comprising a central disc portion 5 with integral upper and lower stems 9 and 9a, and with a hole through each coupling to receive the wire, each coupling is longitudinally split into two co-operating halves and the hole has a diameter slightly less than that of the wire so that the latter will be gripped when the two halves are placed together around it. The outer diameter of each stem portion over at least part of its length is approximately the same as the internal diameter of the tube 1, the relative diameters being such as to provide an interference fit and thus ensure good electrical and mechanical contact upon assembly. The lower stem may be of slightly smaller diameter and the upper stem of slightly greater diameter so that the lower half of the coupling may be slidden into position without jamming, the upper tube then being driven over the upper stem. Alternatively both stems may be of the same diameter as the inside of the tube for a short length near the centre portion 5, and then narrow, as shown, to facilitate insertion into the associated tube. A block shaped to fit over the coupling for driving the assembled electrode into the ground is described and a cap may be fitted over the lower end of the lowermost coupling.
Patent GB-936098-A (GB)
Title: Improvements in or relating to telecommunication cable terminals
IPC: H01R13/719
Filed: 1962-01-31
Abstract: 936,098. Junction boxes; plug boards. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan. 31, 1962 [Feb. 3, 1961], No. 3662/62. Class 38 (1). [Also in Group XXXIX] A four core telephone cable is connected to a pair of two core cables by an arrangement including a printed circuit in which one of the printed connectors is extended to form a capacitor to compensate for the asymmetry of the connector layout. Each connector 7 of the four core cables 3 of a trunk cable 1 is connected to a socket 9, the sockets being arranged symmetrically in pairs in a block of synthetic resin 11. Above the block 11 is an insulating board 13 carrying contact sleeves 15 in register with the sockets 9, with which they may be connected by inserting contact pins 16, Fig. 2 (not shown). The sleeves 15 are connected to pairs of terminals 17 for the outgoing two core cables 5; and also to auxiliary terminals 29 by the printed conductors 19, 23, 25, 27. Conductor 19 is extended at 21 to form a capacitor (equivalent to C2) with conductor 25 and this balances the capacitor (equivalent to C1) formed by the unavoidable proximity of conductors 19 and 23. Adjacent sets of printed connectors are reversed. The auxiliary terminals 29 are for the connection of balancing capacitors if the cable itself is not exactly balanced.
Patent GB-1047902-A (GB)
Title: Topping mix
IPC: A23L5/20
Filed: 1965-01-27
Abstract: 1,047,902. Topping compositions. GENERAL FOODS CORPORATION. Jan. 27, 1965 [Jan. 27, 1964], No. 3672/65. Heading A2B. A topping composition having improved churn tolerance and whippability comprised a dried powdered emulsion of a fat and a mixture of emulsifiers comprising a partial ester of a glycol and palmitic acid with or without a minor amount of a partial ester of a glycol and another saturated fatty acid, and not more than 30% wt. of the emulsifiers of a glycerol monoester of a saturated higher fatty acid having at least 18 carbon atoms, in a matrix of hydrophilic encapsulating solids. Suitable esters include propylene glycol monopalmitate and monostearate, and glycerol monostearate, monobetrenate, and monoarachidate. In an example the fat is hydrogenated cotonseed oil, and the solids comprise sodium casinate, hydroxylated keithin, and sugar.
Patent GB-1416896-A (GB)
Title: Tunnelling machines
IPC: E21D9/10
Filed: 1973-01-24
Abstract: 1416896 Tunnelling machines EDMUND NUTTALL LTD 11 Jan 1974 [24 Jan 1973] 3673/73 Heading E1F In a tunnelling machine having a cutting head 2 supported in a shield 1, the head is actuated by a plurality of hydraulic power units that each comprise a hydraulic motor 5 hydraulically connected to an electrically driven pump 4. The pump and motor may form a single package or the pump is connected to its associated motor by short hydraulic lines and a system of hydraulic lines may interconnect the units to allow of balancing of pressure in the units and provide take off points for hydraulic power for other hydraulically powered units of the machine.
Patent GB-1138812-A (GB)
Title: Information input device for fluid pressure operated machines
Inventor: FRANKE STEFFEN
IPC: B41J23/22
Filed: 1966-01-27
Abstract: 1,138,812. Keyboards for typewriters &c. ELEKTRONISCHE RECHENMASCHINENWISSENSCHAFTLICHER INDUSTRIEBETRIEB - KARL - MARX - STADT. VEB. 27 Jan., 1966, No. 3702/66. Heading B6F. [Also in Division F2] Depression of a member 12, Figs. 1, 2 for example a key of a keyboard, moves a diaphragm 8 downwards against the action of a spring 20, allowing air to pass from an inlet 15, over a sealing surface 16 and around a conical member 11, into a passage 23 from where it passes simultaneously to both a chamber 24 above a spring loaded piston 25 and, via a constriction 35, to a chamber 32, resulting firstly in the depression of the piston 25 against the spring 26, which, in turn, allows the air to pass via a passage 27 to a central region 29 above a diaphragm 9, which is thus depressed to allow the air to reach an outlet 31, and secondly, after a period determined by the constriction 35 and the size of the chamber 32, in the diaphragm being forced upwards into contact with the member 21, to cut off the connection to the outlet 31. Thus, providing the member 12 is depressed for a long enough period a pulse of air of predetermined duration is produced at the outlet 31. Depression of the piston 25 locks other devices by means of balls 38. When the member 12 is allowed to return to its unactuated position a central passage 36 (which is blocked by the wall 7 when the member 12 is depressed) vents the passage 23 and the piston 25 returns to its normal position. In a second embodiment (Fig. 4, not shown), the piston 25 is omitted and air from the passage 23 is allowed to pass direct to the outlet via a normally open valve which is closed, by an additional diaphragm, a predetermined time after the member 12 is depressed.
Patent GB-306396-A (GB)
Title: Improvements in and relating to ring and traveller apparatus for spinning & like frames
IPC: D01H7/60
Filed: 1929-02-05
Abstract: 306,396. Meyer, R. J. Feb. 18, 1928, [Convention date]. Spindle apparatus.-In ring spinning-machines arms 4, Fig. 3, are operated so as to move the travellers 1 radially during the winding of each chase and thereby to reduce the variation in the tangential angle of the yarns when winding on different diameters. The traveller rotates in an annular space between a ring 2 and a cover 3, and its inward radial movement is controlled by a lip 3' on the cover which is adapted to engage a projection b, Fig. 7. The arms 4 are moved by a rod 9 mounted on the ring rail and reciprocated horizontally by reason of the engagement of a roller at the end thereof with a cam member. The cam member is mounted on a vertical rod which is raised at each lift by a projection on the end lifting-poker. More than one presser arm for each traveller or a leaved diaphragm, such as used in photographic apparatus, may be used to effect the radial movement of the traveller.
Patent GB-1511471-A (GB)
Title: Telescopic containers for golf clubs
IPC: A63B55/60
Filed: 1977-01-31
Abstract: 1511471 Golf - bags O OECKL 31 Jan 1977 [3 Feb 1976 27 Oct 1976] 03815/77 Heading A6D A container for golf clubs comprises at least one pair of tubular body portions 1, 2 which are each provided with releasable and closure means 7, 8 and are telescopically adjustable relative to one another either to fully contain the golf clubs or to partially expose same to facilitate their withdrawal. Relative movement of the portions 1, 2 is restricted by abutments 6, 10 and a guide bar 13 also serving as a carrying handle is provided with a spring - loaded locking detent for holding the portions together in the closed position. The container may be provided with a carrying strap or releasably mounted on wheels by a strut and wire arrangement, see Figs. 6 and 7 (not shown). The container may also be provided with a drawbar a pivotal seat and have pockets for accessories. The portions 1, 2 may be made of glass fibre and include a metal core. A modified arrangement including two containers interconnected together is described with reference to Figs. 8 and 9 (not shown).