baber/WOPTO huggingface dataset:
Patent GB-227616-A (GB)
Title: Improvements in or relating to the locks of safes and strong rooms
IPC: E05B65/00
Filed: 1923-12-31
Abstract: 227,616. Chubb & Son's Lock & Safe Co., Ltd., and Ball, H. S. Dec. 31, 1923. Locks, preventing release by destruction of.-A lock for safes in which a bolt strap carrying a plurality of bolts is blocked by the bolt of a key lock, has a plate fitted behind the casing of the key-lock so that if an attempt is made to release the lock by explosion, the plate is displaced to release a trigger and allow a pivoted " dog " to move under the influence of a spring to block the bolt strap. In the form shown in Figs. 1 and 5, the plate b is held behind the casing a of the keylock by fitting into grooves in an angle bracket c and in a trigger f pivoted in the bracket g on the safe door d. A chain or cord k has a ring i engaging the other end of the trigger so that when the plate b is displaced by concussion, the trigger f is released so that a spring r can move the bellcrank lever o, q, to cause the " dog m to move into the path of the stop s on the bolt strap t, so blocking the bolts against withdrawal. To avoid displacement of the plate during transporting the safe, a hook v is formed on the bolt of the lock a so that when the lock is unlocked, the hook holds the plate against movement. Alternatively, a screw 1, Fig. 5, may be screwed into the back of the door to hold the plate. As a further alternative, the plate may be attached directly to the casing a at one side, by brittle rivets 3 or a hinge as shown in Fig. 6. In this case, no provision for holding the plate securely during transit is required. The chain or wire k may be replaced by an encased cable of the Bowden type.
Patent GB-463811-A (GB)
Title: Improvements in the production of alkali metal nitrates
IPC: C01D9/04
Filed: 1935-11-25
Abstract: The process described in the parent Specification, comprising the production of alkali metal and ammonium nitrates by reacting the corresponding chlorides and nitric acid and distilling the mixture under reduced pressure with preferably superheated steam, is modified by using other hot gases, for instance, hot air, hot waste gases, or combustion gases, instead of steam.  The temperature of the hot gases is preferably at least 100 DEG  C., and advantageously between 300 and 500 DEG  C.  The pressure should not exceed 250 mm. and is preferably between 20 and 30 mm.  After removal of nitric and hydrochloric acid from the effluent gas, the latter may be re-heated and again used, if desired.
Patent GB-618218-A (GB)
Title: Improvements in or relating to identification buttons
IPC: G09F3/06
Filed: 1946-11-04
Abstract: 618,218. Buttons. WOOD, A. C., and HINDLE, J. Nov. 4, 1946, No. 32680. [Class 43] [Also in Group XV] An identification button comprises a back A having an inturned flange B behind which a label C and a transparent cover D are placed. One or more screws E extend from the back A, or from the cover D through the label and back, and nuts F secure them to the article to which the button is to be attached. The nut F may take the form of an initial. Small upstanding teeth J may be pressed from the back A to engage the supporting material. The back A may be slotted so that it resiliently grips the label and cover D.
Patent GB-898625-A (GB)
Title: Improvements in or relating to deflection circuits particularly for cathode ray tubes
IPC: H03K4/39
Filed: 1959-09-25
Abstract: 898,625. Valve sawtooth circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. sept. 25, 1959 [Sept. 30, 1958], No. 32687/59. Class 40(6). In a deflection circuit, particularly for horizontal deflection in television receivers having wide-angle cathode ray tubes, the two HT boost capacitors 11, 12 are connected in series with the primary winding of the deflection transformer 4, the deflection coil 6 being connected to part of the transformer windings including only one capacitor 12, the value of the capacitors being such that they develop equal and opposite parabolic voltages so that an S-shaped current is obtained in the deflection coil 6 but the effective boosted anode voltage is constant. An additional winding 10 may be used to provide a balanced output, thus minimising radiation from the deflection circuit. A pulse waveform from winding 15 may be used to suppress the beam during flyback. Expressions are given for the ratios of capacitors 11, 12 in terms of transformer turns ratios. Valve 1 may be replaced by a transistor.
Patent GB-821260-A (GB)
Title: Improvements in burglar alarms
Inventor: HARRIS RONALD
IPC: G08B13/04
Filed: 1956-10-29
Abstract: A burglar alarm (see Group XXXVIII). employs a glass pane having a peripheral path of sprayed metal applied to a previously roughened part of the surface.  The roughening is carried out by sand blasting through a mask and then spraying through the same mask with zinc, aluminium or copper.
Patent GB-295166-A (GB)
Title: Improvements in or relating to bearings for rotary drums
IPC: F16C13/04
Filed: 1927-12-06
Abstract: 295,166. Treschow, M. Dec. 6, 1927. Rotary kilns. - A supporting arrangement for rotary kilns comprises a pair of sliding shoes 3, 4 having turned cylindrical surfaces and arranged as shown, one on either side of the vertical plane through the axis of the drum. The sliding shoes are supported through the medium of pins 5, 7, the pins 5 being arranged parallel to the axis of the drum and the pins 7 tangential to its surface.
Patent GB-1023636-A (GB)
Title: Device for ploughs with plough body and earth cutter
IPC: A01B17/00
Filed: 1964-08-13
Abstract: 1,023,636. Agricultural implements. J. S. KALLER. Aug. 13, 1964 [Nov. 26, 1963], No. 32998/64. Heading A1B. A plough is provided with a cutter for breaking up and levelling ridges comprising a screw blade 4 mounted on a shaft 5 which is driven from a power shaft of a tractor through a shaft 11 and gear-box 10. The shaft is mounted in a bearing device 6 which is rotatably mounted in bearings 7. The angular position of the cutter may be adjusted by a screw 9 in a projection on the device 6 which engages on the plough frame. A counterweighting spring 14 is provided.
Patent GB-1059726-A (GB)
Title: Method of and apparatus for maintaining substantially constant gauge in a strip rolling mill
Inventor: BRYS HARRY EUGENE
IPC: B21B37/16
Filed: 1963-08-21
Abstract: 1,59,726. Automatic thickness control. ARMCO STEEL CORPORATION. Aug. 21, 1963, No.33090/63. Heading G3R. In a system for automatically maintaining a desired thickness of rolled material, simultaneous step by step adjustments are made of screw-down setting and rolling speed of a mill. As described a metal strip 10 moves from right to left through rolling mill stands 11, 12 and any variation in its finished thickness is detected by an X-ray type gauge 25 the pulse output of which is effective, after integration and delay in a unit 26, to operate a reversible screw-down motor 18 in steps until thickness is restored to the desired value. The extent of one step of adjustment is determined in each sense by revolution counters 36, 37 associated with gearing 30 which follows movements of motor 18 through an electric synchronous transmission 28, 29. Gearing 30 also adjusts a potentiometer 39 in a bridge circuit controlling the excitation of a generator 21 through a magnetic amplifier or electronic circuit 44 so that the speed of a motor 20 driving the rolls of stand 12 is adjusted to the extent necessary to compensate for the change of strip tension which would otherwise result from change in screw-down. Another potentiometer 54 operated by gearing 30 is arranged in a bridge circuit energizing a relay 51 which is effective, when the end of a strip leaves the mill, to run screw-down motor 18 until it is restored to its datum position, at which the bridge is balanced, in readiness for the next strip. A series resistance 56 associated with this bridge circuit limits the output current of the latter when unbalance is large. If the screw-down is manually controlled, roll speed is reset when the end of the strip leaves the mill by relay 51 controlling a resetting motor 53.
Patent GB-1046837-A (GB)
Title: Improvements in and relating to speed governing systems for steam turbines
Inventor: WATSON WILLIAM GEORGE
IPC: G05D13/08
Filed: 1964-08-13
Abstract: 1, 046, 837. Fluid-pressure servomotor systems. C. A. PARSONS & CO. Ltd. July 19, 1965 [Aug. 13, 1964], No. 33119/64. Heading G3P. The supply of steam to a turbine 1, Fig. 1 (not shown) is controlled by a valve 6 in response to speed. A governor 3 controls the fluid pressure in a circuit A<SP>1</SP>, acting on a piston 6a which actuates a valve 6b controlling the supply and exhaust of fluid to a piston 6c. The piston 6c actuates a valve 6d controlling the supply and exhaust of fluid to pistons 6e which actuate the valve 6. An emergency stop valve 7 is closed in response to a predetermined speed by a trip device 8 or by a fall in load which acts on a solenoid operated pilot controlled valve 9, the solenoid being deenergized after a certain time to reopen the valve 7. Both valves 8 and 9 when actuated connect a circuit B 2  to drain which causes closure of the valve 7 through a control valve 7a. The valve 7a, Fig. 2, comprises a plunger 10 slidable in a sleeve 11 the plunger having a piston 10b subjected to the pressure in circuits B 1 , B 2  acting above and below the piston which is such that the effective area of the lower face is larger than the upper face whereby the plunger is normally urged into contact with a rod 16. Ports 14, 13, 15 in the sleeve 11 are connected respectively to the circuit B 2 , piston 7b and exhaust and the valve 10 normally connects ports 14, 13 to hold the valve 7 open. In the event that the valve 9 or trip 8 connects circuit B 2  to exhaust the plunger 10 moves downwards connecting port 13 to exhaust port 15 to close valve 7. When control is in response to valve 9, the valve 7 is reopened after a time interval but the control is in response to trip valve 8, the system must be reset manually.
Patent GB-536659-A (GB)
Title: An improved reducing valve
IPC: G05D16/06
Filed: 1939-12-30
Abstract: 536,659. Valves. NORTH BRITISH RUBBER CO., Ltd, and BRIDGENS, W. R. Dec. 30, 1939, No. 33122. [Class 135] A pressure reducing valve which is formed so that it may be streamlined into any existing pipe line with little loss of space is constructed with a longitudinally extensible and contractible chamber a formed by a rubber, canvas, rubber and canvas, or extensible metal tube secured to inner sleeves e, d of flanges b, c secured respectively to a fixed outlet pipe g and a floating inlet pipe h. The member c carries a movable valve seating m and to the member b a valve on a fixed spindle n is secured. An adjustable spring q normally keeps the valve open but when the pressure in the chamber a rises to a pre-determined value the member c is moved to close the valve. The valve thus delivers fluid at a pressure which cannot exceed a pre-determined value, and it is stated that the pressure of the fluid delivered tends to this constant value which can be set within wide limits by means of the screw s which adjusts the spring q. The member b is connected to bolts t and the movement of the member c is limited by nuts u, u<SP>1</SP> on the bolts. In a modification the member b is made the movable member and the members b, c slide like pistons in an outer cylinder on which screws a member for adjusting the pressure of a spring which acts on the member h so as to produce the closing pressure. The device may act as a safety valve by constructing the chamber a so that it will fracture if the pressure exceeds a pre-determined value. The chamber a may be formed with a corrugation k.
Patent GB-983717-A (GB)
Title: Improvements in or relating to moulded plastics articles
IPC: B29C41/22
Filed: 1962-08-29
Abstract: 983,717. Mouldings containing conductive layers. NEDERLANDSCHE SIEMENS MAATSCHAPPIJ N.V. Aug. 29, 1963 [June 28, 1962], No. 33162/62. Heading B5A. Articles containing one or more electrically conductive metal wire netting or foil screens, and from which a contact terminal projects, are made by applying the screen between the first and last of successive layers of pigmented and glass reinforced polyester or epoxy resin deposited upon a polished mould surface coated with release agent. The article may comprise a switch panel, saucer or an electrical apparatus container 13 whereby the screen serves the dual purpose of mechanical strengthening and of the discharge of static electricity accumulation. The surface of the article may be polished so that the screen appears entirely or partly at the surface. Specification 956,489 is referred to.
Patent GB-1119172-A (GB)
Title: Improvements in hinges
Inventor: CROXSON GORDON
IPC: E05D1/02
Filed: 1965-08-03
Abstract: 1,119,172. Flexible hinge. ITW Ltd. 2 Aug., 1966 [3 Aug., 1965], No. 33183/65. Heading E2F. A flexible hinge comprises a slab of plastic with a waisted portion 10 about which the hinge flexes and which is provided at each end with means for attaching one hinge to another of the same type to produce an elongated unit. In the embodiment shown, the attachment means are two male members 16 at one end adapted to fit into and be retained by two female members such as those 18 at the opposite end of the hinge. Also shown are two "end" members having only one, or the other part, of the attachment means at one end only. In a second embodiment depicted in Fig. 3 (not shown), the intermediate unit (36) has a male fastener member comprising legs (20') having between them a cavity (22') which converges away from the body portion. A pin (37) is attached by a thin web (38) to the member around the upper end of the cavity, the web being broken and the pin forced down into the cavity to splay the legs when the members are joined by passing the legs into the corresponding hole in the other member.
Patent GB-1508599-A (GB)
Title: Roll handling apparatus
IPC: B21B31/08
Filed: 1975-07-25
Abstract: 1508599 Grippers BRITISH STEEL CORP 25 July 1975 [26 July 1974] 33214/74 Heading B8H [Also in Division B3] A roll handling apparatus, suitable for changing a work roll in a rolling mill, includes a rigid frame 10 from which four fingers 28 and 29 extend parallel to one another, the fingers being able to embrace and support a work roll. The fingers are supported on a frame portion 12 which may be inclined at 45 degrees to a vertical portion 11, to handle inclined rolls. The upper fingers 28 are slidable in guides 17 away from the lower fingers 29 by urging a pair of pivoted hand levers 23 towards one another. Springs 24 and 25 bias the fingers together, however, to grip a roll between them, collars 29 on the fingers co-operating with a roll groove. Levers 22 act on lock assemblies 20 to hold the upper fingers in an adjusted position. The apparatus is supported by a ring 13 on a hoist which can be adjustably counterbalanced to assist in manual manipulation of the apparatus. The fingers 29 can be rotated by handwheels to align a supported roll with a keyway in the mill.
Patent GB-1364625-A (GB)
Title: Digital data processing system
IPC: G05B9/02
Filed: 1970-07-09
Abstract: 1364625 Digital computers; error detection DEFENCE SECRETARY OF STATE FOR 6 July 1971 [9 July 1970] 33326/70 Heading G4A Various errors in the control system of a computer controlled plant (e.g. one or more gas turbines in an aircraft) are corrected by means of an interchangeable apparatus. The apparatus.-Two gas turbines 114, 214 are controlled by digital computers 100, 200 connected thereto by input/output units 107, 207 (including multiplexers 108, 208) and transducers 112, 118, 212, 218. The system is notionally divided into an upper and lower channel (divided by line o) but the various components of the channels are interconnected as shown and control does not necessarily flow along the respective channel, e.g. transducers 118 are controlled via l/o unit 207. The transducers (actuators or sensors) are generally analogue and A/D and D/A converters are provided in units 107, 207. Two pilot's throttle levels 114, 214 are provided. Fault response units 126A, 226A break the power lines to the respective computers 100, on detection of certain faults. When one computer is thus disconnected the other one is informed and activates a standby program for the other engine so that this computer controls both engines. The faults which may be detected include error in the fault units, failure of communication between the computer and its engine, fault in a transducer, or faults in one computer reading the connection/non-connection of the other computer and they are detected by diagnostic programs using check calculations. The response to the first two faults is described (Figs. 2 and 3, not shown). In another embodiment (Fig. 4, not shown), four computers normally control four respective engines and a similar fault correction system is described. A detailed computer program, the same for each computer 100, 200, is described (Figs. 5 and 16 to 23, not shown). Means are provided for preventing a computer being disconnected for transient faults. In a modification, computer 100 normally controls both engines while computer 200 only operates one section of its program and in another modification two computers control one engine. The disclosure is the same as that of divided out Specification 1,364,626.
Patent GB-1524738-A (GB)
Title: Gypsum plaster
IPC: C04B28/14
Filed: 1976-08-11
Abstract: 1524738 Gypsum plaster DEUTSCHEGOLDUND SILBER-SCHEIDEANSTALT 11 Aug 1976 [24 Sept 1975] 33370/76 Heading C1H A commercial-grade gypsum plaster with a delayed setting time comprises a gypsum plaster containing up to 0À5% by wt. of D,L-tartaric acid and such a quantity of calcium hydroxide that a 5% by weight aqueous suspension of the plaster has a pH value of at least 11À5. Preferably the plaster contains finely divided silicas as free-flow agents. Commercial-grade gypsum plasters are inter alia lime-gypsum plaster, gypsum plaster, mortar gypsum, ready-mixed mortar gypsum, bonding gypsum and machine gypsum plaster.
Patent GB-1263678-A (GB)
Title: Quinoxaline-di-n-oxide-hydroxy-lactone
Inventor: SENG FLORIN
IPC: C07D491/04
Filed: 1970-07-09
Abstract: 1,263,678. Quinoxaline-di-N-oxide derivative. FARBENFABRIKEN BAYER A.G. 9 July, 1970 [10 July, 1969], No. 33384/70. Heading C2C. The invention comprises the compound of formula and a process for making it by reacting in a diluent an acetal of a 2-carbamyl-3-formylquinoxaline-di-N-oxide with at least the stoichiometric amounts of inorganic or organic acid and water, at 0-50. Anti-bacterial compositions for pharmaceutical or veterinary use comprise the compound of the above formula in admixture with a solid or liquid diluent or carrier.
Patent GB-1476560-A (GB)
Title: Purification of phosphoric acid
IPC: A23K1/175
Filed: 1975-08-11
Abstract: 1476560 Purification of phosphoric acid RHONE POULENC INDUSTRIES 11 Aug 1975 [13 Aug 1974] 33402/75 Heading C1A Phosphoric acid is defluorinated by countercurrent washing a solution of the acid in an organic solvent that is substantially immiscible with water with an aqueous solution of a compound of Al, Fe, Ti or Zr, separating an aqueous phase containing the fluorine compounds and collecting an organic phase containing the phosphoric acid, separating the phosphoric acid from the organic solvent by regeneration with water and collecting a solution of phosphoric acid having a fluorine content of less than 10 p.p.m. relative to the P 2 O 5  as the final product. The soluble salt may be the phosphate of the metals and the organic solvent a C 4  to C 8  aliphatic alcohol or a phosphoric acid ester. The aqueous phase separated in the washing stage may be treated with a stoichiometric quantity relative to the Al, Fe, Ti or Zr in solution of a strong acid, preferably sulphonic acid, and this solution then added to the impure phosphoric acid and the combined solutions extracted by a C 4  to C 8  aliphatic alcohol or phosphoric acid ester discarding the resulting aqueous phase and recycling the organic solvent phase containing the phosphoric acid to the washing stage. Alternatively, the aqueous solution after acidification with sulphuric acid may be treated with an aqueous solution of calcium phosphate, thereby precipitating CaSO 4  which is removed and the phosphoric acid in the organic solvent separated and directed to the first stage of the process. After treatment of the organic solution of phosphoric acid by the aqueous solution of the soluble compound and before the regeneration step with water, the organic phase may be washed counterourrently by water in a multistage apparatus, the volume ratio of water to solvent phase being in the range 1 : 100 to 5 : 100.
Patent GB-958598-A (GB)
Title: Improvements in nuclear reactor fuel rod desheathing machines
Inventor: BONNET GEORGES
IPC: G21C19/36
Filed: 1961-09-19
Abstract: 958,598. Shearing; bending. COMMISSARIAT A L'ENERGIE ATOMIQUE. Sept 19, 1961 [Sept. 19, 1960], No. 33519/61. Headings B3E and B3W. [Also in Division G6] A machine for removing the sheath of a fuel element in which there is initially a slight radial play between the sheath and the enclosed rod of fissile material, comprises a pair of rollers 1, 2 driven synchronously in the directions 14, 15 and profiled to form a groove 9 with an opening 10, the fuel element being advanced by a jack (not shown) towards the groove. The groove 9 has a radius midway between that of the sheath and rod, whereby the sheath is deformed to form a longitudinal fold in the opening 10 which is slit by a cutting tool 12. As the fuel element advances the slit is progressively widened by a beak-shaped member 16 followed by a body 17 of conical shape. The sheath 18 is then progressively flattened by rollers 20, 21, 22 and leaves by an exit 24, the rod leaving through an exit 23.
Patent GB-925824-A (GB)
Title: Conversion of brass chips
IPC: C22B7/00
Filed: 1961-09-19
Abstract: 925,824. Melting metal scrap. CHASE BRASS & COPPER CO. Inc. Sept. 19, 1961 [Sept. 23; 1960], No. 33558/61. Class 82. Readily oxidizable brass chip scrap is melted by the method which comprises maintaining a molten mass of the brass M in a crucible 37, e.g. of an inductively heated furnace 36, providing a blanket B of finely divided carbon particles, e.g. maximum diameter 1/32 inch and at least 4 inches thick, which constitutes a fluid reducing protective medium across the exposed surface of the metal, introducing the chips into the furnace by distributing them uniformly across the upper surface of the blanket and immediately passing the chips through the blanket, e.g. by mechanically poking with a reciprocating pusher head 40, so that they are brought into intimate contact with the carbon particles which heat them to above their melting-point, e.g. 1630-1650‹ F., and withdrawing molten metal from the crucible, preferably by means of a bottom feed overflow device 152, to maintain the surface level constant. The chips to which carbon particles may be added may be passed through a magnetic separator to the furnace by conveyer means, the rate of chip feed, which may be controlled by the temperature of the brass M registered by a thermocouple tube 68, being equal to the instantaneous capacity of the furnace. The molten brass recovered may be discharged along launder 52 into a tiltable holding furnace (not shown) prior to casting into billets. U.S.A. Specification 2,446,637 is referred to.
Patent GB-294424-A (GB)
Title: Improvements in coverings for petrol tanks
IPC: B64D37/06
Filed: 1927-12-12
Abstract: 294,424. Poberejsky, J. Dec. 12, 1927. Tanks. - A covering for a petrol tank includes one or more layers a, a<1> of stretched rubber secured to a layer b of non- stretched rubber, the directions of stretching being different when two or more stretched layers are used.