baber/WOPTO huggingface dataset:
Patent GB-592963-A (GB)
Title: Improvements relating to photographic cameras
IPC: G03B17/24
Filed: 1945-05-04
Abstract: 592,963. Photographic cameras. AVIMO, Ltd., STEVENS, H. C. M., and HATTIN, M. A. May 4, 1945, No. 11395. [Class 98 (i)] An apparatus for imposing an identification mark on different parts of a film in a camera comprises an opaque screen having transparent parts bearing identification marks, a light source, and a lens system for directing an image of a mark on to the film, and means for moving the screen and actuating the light source. Fig. 1 shows the screen in the form of a rotary disc a with identification marks as at b ; actuation of lever k, outside the camera, moves slidable bar h which turns disc a in step-by-step manner by means of pawl i and ratchet g, and a spring-loaded pawl n on the bar closes switch m to light a lamp. Fig. 3 shows a condenser lens c in line with one of the identification marks on the disc a, a lens system d and reflector e to direct an image of the mark on to film f.
Patent GB-198869-A (GB)
Title: Improvements in and relating to the manufacture of tubes and other articles from compressible materials
IPC: B29C43/12
Filed: 1922-12-28
Abstract: 198,869. Hushes, A. Wilson-, and Commin, F. J. Dec. 28, 1922. No Patent granted (Sealing fee not paid). Moulding hollow-ware and pipes and tubes.- Tubes, boxes and cisterns are formed from sheets of compressible materials, such as pitch fibre composition, asbestos, cement, celluloses, and the like, by winding convolutions on a core or former until an article somewhat thicker than is desired in the finished condition is obtained, placing the article 5 on a mandrel 8 supported within the bore of an expansible double-walled chamber 7, contained within a mould 6, and inflating the chamber by pressure-fluid supplied at 9 until the article, is compressed to the finished thickness. The mandrel with the article 5 roughly formed to size may be inserted within the chamber 7 without removing the article from the mandrel. A longitudinally split metal covering 15 may be provided between the article 5 and the chamber 7. Specification 167,613, [Class 70, India-rubber &c.], is referred to.
Patent GB-690254-A (GB)
Title: Electric motor
IPC: H02K25/00
Filed: 1951-05-16
Abstract: 690,254. Electric motors. SOC PARVEX. May 16, 1951 [July 12, 1950], No. 11412/51. Class 35. In a universal motor the commutator brushes are displaced from the neutral axis, so that the armature reaction serves to excite the field poles, these being left unwound. In the two-pole machine shown in Fig. 1, and having an unwound stator field 10, the brushes 23, 24 are displaced by about 45 degrees from the neutral axis so that those armature coils in the interpolar space serve to generate the working flux while the coils opposite the poles produce the working torque. The direction of rotation is reversed by means of a change-over switch 43 which connects the supply 40, 41 to an alternative pair of brushes 35, 36 which are displaced from the neutral axis in the opposite direction. Commutating poles 44, 45 and 49, 50 corresponding to the brush pairs may be energized by connection in series with the armature or, in A.C. machines by current induced in short circuited windings. A fourpole, wave-wound motor is described. In a further modification, shown in Fig. 4, the stator 100 carries the distributed winding which is connected to a stationary commutator 106, while the rotor 101 carries rotary brushes 108, 109 fed through slip-rings. As before, the brush axis is displaced by an angle b from the neutral axis 122, 123 of the unwound member. A second pair of brushes displaced in the opposite direction and producng reversed rotation may be added.
Patent GB-211041-A (GB)
Title: Improved means for fixing hammers and other eyed tools to their handles
IPC: B25G3/32
Filed: 1923-08-02
Abstract: 211,041. Bradbury, T., and Johnson, C. A. Aug. 2, 1923. Fixing strengthened handles by screwed sockets and extended axial tangs with wedge expanding - devices.- Relates to means for fixing handles in hammer heads and other socketed tools of the kind in which a wedge is drawn into the end of the handle by a screwed rod passing through the wedge and handle. The head 8 of the rod 6, and the corresponding recess 10 in the wedge 7 have at least one flat side, the form shown being of square section, and the nut 12 is flush with the other end of the handle 1. The wedge 7 is drawn into the end of the handle in the socket of the head 2 by the rod 6 when the nut 12 is rotated by a screw-driver engaged in the slot 14. A plate 15 may be fixed on the end of the handle by spikes 17, the end 13 of the nut being countersunk in the plate.
Patent GB-1433232-A (GB)
Title: Internal combustion engine air cleaner assemblies
IPC: B01D46/00
Filed: 1973-03-10
Abstract: 1433232 Air filter housing for I.C. engine GENERAL MOTORS Ltd 21 Feb 1974 [10 March 1973] 11660/73 Heading BIT An air intake filter housing for an I.C. engine comprises dished plastics body and cover 2, 3 secured together by circumferentially spaced spring clips 7, pivoted to one member and clipping over the other, rim 12 of cover 3 engaging a continuous or discontinuous flange 11 on body 2, and resilient gasket 10 then being partly but not fully compressed in recess 5 by rim 6 of body 2. Gasket 10 may be a hollow palstics toroid and press-fitted and/or secured by adhesive into recess 5. The arrangement reduces noisy vibration of the cover if the engine heat causes plastics to creep.
Patent GB-200936-A (GB)
Title: An improved construction of coffee infuser
IPC: A47J31/057
Filed: 1922-04-26
Abstract: 200,936. Purdie, E. J. April 26, 1922. Infusing-machines. -In a coffee-making device of the kind in which the water is caused to rise on boiling from a lower container 1 to an upper container 5 for coffeeinfusion, the water rises through a central tube 8 carried bv the upper container and is distributed over ground coffee in a removable perforated tray 14 in the mouth of the upper container. The tube 8 is secured in the bottom of the container 5 by a stamped or pressed washer 9, and terminates below in a coned collecting disc 10, and above in a small slotted cone through which the water is sprayed on to the coffee.
Patent GB-118028-A (GB)
IPC: B64C3/00
Abstract: 118,028. Blackburn Aeroplane & Motor Co., and Copley, J. W. Nov. 13, 1917. Framework.-In means for locking tension members of aircraft and other structures, particularly where the tension members are screw-threaded into connecting-devices, a piece of wire 6 is bent round the tension member 1 and secured thereto at 7 as by soldering, and then bent round the connecting- device 2 or passed through a pin 5 or other part thereof.
Patent GB-776399-A (GB)
Title: Fisherman's bait container
IPC: A01K97/06
Filed: 1955-04-25
Abstract: An anglers bait container, particularly for fly-bait comprises a box containing therein a layer of amadon, a material which absorbs many times its weight of water, held in position by a grid member.  A partition forming a chamber with a side of the box receives a slip-stone.
Patent GB-1064097-A (GB)
Title: Winding machine having an automatic knotting device
IPC: B65H69/04
Filed: 1964-03-20
Abstract: 1,064,097. Winding yarns; knotting; counting knotting attempts. W. REINERS. March 20, 1964 [March 21, 1963], No. 11881/64. Headings D1F and D1J. A combined knotting and knot testing device includes a probe 5 that is brought into operation after a knot tying cycle to tighten the knot and check whether a knot has been effectively tied. If not a counter 26 is actuated. If, after a predetermined number of knotting cycles, an effective knot has not been tied the counter 26 causes the winding station to be halted in a manner known per se so that further knotting attempts are prevented. A knotting cycle is performed by rotating the cam 6. Rotation of the cam 6 causes the lever 8 to move the worm segment 9 to turn a worm wheel 10. Rotation of the worm wheel 10 turns the hollow spindle 23 and thence a dished wheel 11 actuating the tying beaks 12, 13. Rotating with the cam 6 in a cam 7 which, through a spring biassed bolt 15, can rock a bell crank lever 14 to push the probe 5 against the knotted yarn. If the yarn ends are not effectively knotted the probe 5 is moved to the position shown in broken lines thus allowing the bell-crank lever 14 to swing to a setting in which the contacts 16, 17 are closed to index the counter 26 one step. The cycle is repeated for each knot tying attempt until the permitted number of attempts have been made. If during these attempts the thread ends are correctly knotted the probe 5 engages the thread and prevents the bell-crank lever 14 from being moved to a setting at which the contacts 16, 17 are closed. Instead, the spring biased bolt 15 is moved relatively to the bellcrank lever 14 to close the contacts 31, 32 to cause the counter 26 to be returned to zero. One knotting device may serve a plurality of winding machines, each machine having its own counting device. For this purpose sliding contacts, for example 27, 28, may be included in the electrical circuitry between the knotting and counting devices. In such cases the knotting device, even if a knotting attempt is a failure, preferably moves on in turn to the other machines requiring attendance before returning to the station at which the knotting was a failure to repeat the knotting operation.
Patent GB-885091-A (GB)
Title: Improvements in or relating to the bulk polymerisation of methacrylic esters
IPC: C08F20/14
Filed: 1959-04-08
Abstract: A syrup, for use in the production of mouldings by the bulk polymerization method, comprises from 20 to 50% of a low molecular weight polymer or copolymer of a methacrylic ester dissolved in a monomeric methacrylic ester, alone or in admixture with at least one other ethylenic copolymerizable monomer, the polymer or copolymer having an intrinsic viscosity in chloroform at 25 DEG  C. of from 0,6 d 1/g.  The comonomer must be one which does not cause adhesion between the moulded article and the surface of the mould. The polymer or copolymer is preferably in the form of beads of diameter 0,1 to 1 mm. obtained by emulsion polymerization.  The comonomer is preferably an acrylate or methacrylate ester, e.g. ethyl acrylate, and the methacrylate monomer is preferably the methyl ester.  Various other substances may be present in the syrup, such as plasticizers, lubricants, dyes, pigments, fillers or regulators (such as mercaptans, e.g. dodecyl mercaptan).  The polymerization may be initiated by a promoter, e.g. lauroyl peroxide.
Patent GB-1163729-A (GB)
Title: Demand Memory for Elevator Controls.
IPC: B66B1/18
Filed: 1966-10-04
Abstract: 1,163,729. Lift control systems. RELIANCE ELECTRIC CO. 4 Oct., 1966 [8 Oct., 1965], No. 11994/69. Divided out of 1,163,727. Heading B8L. The description is identical to the parent Specification but the claims relate to the demand memory device by which the assignment of a call to a particular car is stored until the memory is reset by service of the call or by a signal produced by means for detecting a predetermined condition other than service of the call. The predetermined condition may be the loading of the car above a predetermined limit or the timing out of a timer which is started when a landing call is registered, in which case the call is released for re-allocation to another car. The " memory " itself comprises a flip-flop and the complete memory device includes associated logic circuit elements (Fig. 15, not shown).
Patent GB-1162757-A (GB)
Title: Razor Blades and Manufacture Thereof
Inventor: FLAHERTY FRANCIS EDWARD
IPC: B05D5/08
Filed: 1967-03-14
Abstract: 1,162,757. Razor blades. GILLETTE CO. 14 March, 1967 [16 March, 1966], No. 12020/67. Heading B4B. [Also in Division C7] Razor blades are produced from carbon tool steel strip which has been heat treated to have an austenite content of at least 23% and preferably 25-28%. Sharpening is carried out on equipment adjusted to produce on conventional carbon steel strip an included angle at the final facet of more than 25 degrees; on the material of the invention the included angle actually produced is approximately 28 degrees. The blades are then given a conventional fluorocarbon polymer coating.
Patent GB-1087616-A (GB)
Title: Sealing device
IPC: F16J15/12
Filed: 1965-03-22
Abstract: 1,087,616. Injection moulding sealing rings. CATERPILLAR TRACTOR CO. March 22, 1965 [April 17, 1964], No. 12030/65. Heading B5A. [Also in Division F2] A sealing ring comprising a U-section metal ring 11 having, in its free state, inwardly radially diverging legs 14, 16 and a silicone rubber core 18 having bead portions contiguous with and extending radially inwardly of the ends of the legs (see also Division F2), is formed in a die comprising an upper member 44 pivotally mounted on a lower member 34 and a plug 40 slidable in a bore 38 in the member 34 and having passages 58 therein. The ring after cleaning and coating with an adhesive suitable for bonding is compressed in a recess 36 in the member 34 and rubber is forced through passages 58 by a ram 52, the die being heated to approximately 320‹ F. during moulding.
Patent GB-1532137-A (GB)
Title: Multipole circuit breaker
IPC: H01H9/34
Filed: 1977-03-22
Abstract: 1532137 Automatic circuit-breakers GOULD Inc 22 March 1977 [28 April 1976] 12037/77 Heading H1N An automatic circuit breaker has a common trip bar 75 which is movable to trip the breaker by means of armatures 52 of overload trip devices 50 of any of its phases or by an actuator 18 accessible for manual rotation through the moulded cover 22 of the breaker or by axial movement of the actuator 18 due to the bias of a spring 169 on opening of the cover 22. The breaker as described is combined with an electromagnetic contactor 58 and has a common spring bias adjustment assembly 55, 56 for all phases and individual armature travel adjustment screws 63.
Patent GB-352566-A (GB)
Title: An improved spanner to tighten nuts or other similar objects
IPC: B25B13/16
Filed: 1930-04-16
Abstract: 352,566. Sliding - jaw wrenches. SANCHEZ, A., 16, Alberto Aguilera, Madrid. April 16, 1930, No. 12090. Convention date, Jan. 29. [Class 61 (iii).] Handles.-In a quick-adjustment spanner the sliding jaw a carries an extension rotatably carrying a screw h. The screw is rotated by a member f formed with keys which engage keyways in the screw. Wedges g guided in the stock are toothed to engage the screw and carry pins o which are engaged by inclined faces m on control plates operated by a knob k on the side of the spanner. In use, a knob k is pulled down to release the wedges and the jaws are opened against the urge of a spring a. Fine adjustment is obtained by turning the screw h in the wedges by means of the member f.
Patent GB-863359-A (GB)
Title: Improvements in and relating to magnetic amplifiers and electrical control systems incorporating such magnetic amplifiers
Inventor: SYKES WILLIAM HARRISON
IPC: G05B1/02
Filed: 1956-04-20
Abstract: 863,359. Magnetic amplifiers. ENGLISH ELECTRIC CO. Ltd. April 18, 1957 [April 20, 1956], No. 12120/56. Class 40 (9). [Also in Group XXXV] A magnetic amplifier 11 has a control-winding 11b energized by two opposed input signals V C  and V R  connected through diodes 18, 20, shunted by resistors 19, 21. When one signal, e.g. V R , is much larger than the other, one diode, e.g. 18, blocks so that the control current through winding 11b is limited by the inclusion of a resistor, e.g. 19, in series with the winding. As both signals near equality, both diodes conduct and so the sensitivity of the system is increased. The battery E biases both diodes in the forward direction to determine the range of input signals over which the full sensitivity is available. In a modification, Fig. 2 (not shown), the battery E is omitted, and the amplifier is used to control the excitation of a D.C. generator (see Group XXXV). In another modification. Fig. 1 (not shown), the diodes are replaced by non-linear resistors which increase their resistance with applied voltage. In a further modification, Fig. 4 (not shown), the diode/resistor networks and the control windings are duplicated to allow for control voltages of reversible polarity.
Patent GB-670352-A (GB)
Title: Improvements in and relating to duplicated fluid operated power systems
IPC: F15B18/00
Filed: 1949-05-09
Abstract: 670,352. Fluid-pressure servomotor-control systems ; hydraulic apparatus. BOULTON PAUL AIRCRAFT, Ltd., and MILLARD, D. J. May 8, 1950 [May 9, 1949], No. 12300/49. Classes 69 (ii) and 135. A duplicated, fluid-operated, power system comprises two pumps, each supplying a hydraulic motor, with a valve for bye-passing each motor, and one of the valves is held closed by the pressure generated by one of the pumps and the other valve is held open by the same pressure. The invention is shown applied to the operation of an aircraft control surface 6 with the motors connected in tandem. The motors consist of jacks 1, 2 or they may be of the rotary type. Each jack is controlled solely by its own pump 19 or 18, and each is capable of providing by itself the full output required. Pump 19 also supplies pressure fluid to control bye-pass valves 25, 28 so that, under normal conditions, valve 25 is closed and valve 28 is open, and jack 1 will thus be operative and jack 2 will idle. Should the pressure supply from pump 19 fail, loading springs in the two valves will open valve 25 and close valve 28, so that pump 18 and jack 2 will become operative and jack 1 will idle. Should a fracture occur in one of the pipes leading from pump 19 to jack 1, a pressure-operated electric switch 30 or 31 will close and, through electric relays, will also bring about a change-over in the bye-passing valves. Each pump is of the rotating radial piston type with the delivery controlled by an adjustable eccentric reaction member, and the pressure to operate valves 25, 28 is obtained by an additional bank of pistons with a spring-loaded reaction member. The output varying devices in the pumps are actuated from a pilot's control 10 pivoted to the lower end of a floating lever 9, the latter being fulcrummed at 11 on a lever 12, 14 connected at its lower end to the adjustable reaction rings of the pumps. A repeatback is provided by connecting the pistons of the jacks to the upper end of floating lever 9.
Patent GB-1091548-A (GB)
Title: Improvements in method for making organosilanes
IPC: C07F7/12
Filed: 1965-03-24
Abstract: Alkylhalosilanes of the formula H(CH2)aSiH.X wherein X is halogen, Z is H or halogen and a is an integer from 3-20 inclusive, are made by reacting the corresponding alkylsilane of formula H(CH2)aSiH3, in the presence of a Lewis acid catalyst, with 0.5-10 moles/mole of the alkylsilane, of a halosilane of formula <FORM:1091548/C3/1> or <FORM:1091548/C3/2> or a mixture thereof, wherein X is as defined, b = 1 or 2, c is an integer from 1-18, f and g are integers from 3-16, x = 1, 2 or 3, y = 0 or 1, with the proviso that the value of bx, (bx+c) or (f+g) must be less than a, and d = 0, 1 or 2, e = 1, 2 or 3, j = 0 or 1, k = 1 or 2, with the proviso that the sum of x, y, d and e = 4 and j+k = 2, and thereafter separating the volatile reaction products from the reaction mixture and recovering the desired product from the mixture remaining.  Specified catalysts are aluminium chloride (preferred), N,N1-dimethylcyanamide and BCl3, used in, e.g. amounts of 10% by weight, or more. Reaction may be conducted at 0 DEG  C. to reflux, suitably 20-50 DEG  C. Continuous operation is possible. The products are obtained in substantially quantitative yield, and may be incorporated in compositions useful as hydrophobic coating agents.ALSO:Compounds of the formula:-H(CH2)a SiH.Z.X, where X is halogen and Z is H or halogen and a is an integer from 3-20 may be used in coating compositions for fabric, paper or masonry, to render them hydrophobic or paintable.
Patent GB-899030-A (GB)
Title: Improvements relating to propellant systems for rockets
IPC: F02K9/46
Filed: 1961-04-07
Abstract: 899,030. Rocket motors. UNITED AIRCRAFT CORPORATION. April 7, 1961 [April 12, 1960], No. 12646/61. Class 110 (3). A propellant supply system for a rocket engine having a nozzle wall cooled by one of the propellants and an injector head through which the propellants are delivered to the combustion chamber, comprises a pump for one propellant and a multi-stage pump for a second propellant, a turbine drive for both of the pumps, means for conducting propellant from the first pump to the injector head, means for conducting second propellant from the last stage of the multi-stage pump to the nozzle wall for cooling it, a conduit for passing propellant from the nozzle wall to the turbine, a conduit for passing propellant from the turbine to the injector head, and a further conduit for passing propellant from an intermediate stage of the multi-stage pump directly to the propellant head. The engine shown comprises a combustion chamber 2 and nozzle 4 having a fuel-cooled wall 8, also a propellant injection head 9. Oxidizer, for example oxygen, is delivered by pump 12 to line 14, through control valve 16 to the injector head 9 and into the combustion chamber. Fuel for example liquid hydrogen is delivered by first stage pump 20 and divided into two streams, one stream passing through line 26 into the second stage pump 27 thence through the line 30 to the wall 8 of the combustion chamber and nozzle assembly. The fuel which is heated in passing through the wall 8 then passes through line 32 to drive the turbine 34, the fuel then passing at reduced pressure through line 36 and control valve 24 to the injector head 9. The remaining portion of fuel delivered by the first stage pump 20 passes through line 22 to the control valve 24 and is then delivered together with the fuel from the line 36 to the injector head 9. The turbine 34 drives the fuel pump 20, 27 directly and the oxidizer pump 12 through gearing. The plug 50 of the valve 24 is arranged so that it may close off the line 22 while opening line 36, this being the position at starting. The humps 52, 54 in the lines 22, 36 represent vapour traps.
Patent GB-1269064-A (GB)
Title: A method for manufacturing carbon materials for example graphite
Inventor: SUKHORUKOV IVAN FEDOROVICH
IPC: C01B31/00
Filed: 1969-03-11
Abstract: 1,269,064. Carbon bodies. GOSUDARSTVENNY NAUCHNO - ISSLEDOVATELSKY INSTITUT ELEKTRODNOI PROMYSHLENNOSTI. 11 March, 1969, No. 12648/69. Heading C1A. A solid carbonaceous body, for example graphite, is manufactured by a method including the steps of heating a granular powder consisting of a solid carbonaceous filler and a solid coal tar pitch binder at a temperature at or close to the temperature of zero ductility of the binder, which is the temperature above which the binder will exhibit ductile properties, and pressing said material in a closed mould at that temperature.