baber/WOPTO huggingface dataset:
Patent GB-642854-A (GB)
Title: Improvements in or relating to fusion-deposition welding
IPC: B23K9/035
Filed: 1948-07-08
Abstract: 642,854. Uniting by fusion. LINDE AIR PRODUCTS CO. July 8, 1948, No. 18433. Convention date, Aug. 14, 1947. [Class 83 (iv)] In fusion butt welding, a joint backing comprises a mineral-like composition fused and cast against the reverse side of the joint. For tubes 10, 11 a plate 12 of carbon, ceramic or metal is supported a few inches below the joint by a tube 13 in the lower tube 11. The composition 16 is cast in to a level a few inches above the joint (see Fig. 1, not shown), and a further plate 17 may hold the tubes together, e.g. for transport to welding position, by a bolted connection with a lower plate 14. Predominately silicate compositions are suitable, e.g. binary or ternary silicates of iron, calcium, sodium, barium, manganese, cobalt, magnesium, nickel and aluminium, and alkaline earth metal silicates are convenient. A minor proportion of melting-point depressing material, e.g. calcium fluoride, may be added. One composition comprises 16 parts by weight of 30 per cent CaO; 9 per cent MgO; 56 per cent SiO 2  and 5 per cent Al 2 O 3  with 1 part by weight of calcium fluoride.
Patent GB-582382-A (GB)
Title: Improvements in and relating to lawn mowers
IPC: A01D34/62
Filed: 1944-09-28
Abstract: 582,382. Lawn-mowers. WEBB & CO., Ltd., H. C., and TAYLOR, F. W. Sept. 28, 1944, No. 18624. [Class 6 (ii)] A lawn-mower, of the type in which a roller for for adjusting the cutting height is mounted at the front of the machine, is provided with an auxiliary roller adjustably supported on each side of the machine out of the path of the cutters, provision also being made for the ready removal of the main front roller when the machine is used for cutting long grass. In the form shown, each auxiliary roller 15 is rotatably mounted in a U-shaped bracket 13, the bracket itself being adjustably secured to one of the side plates 14 of the machine by means of a nut 19 and bolt 18 passing through a longitudinal slot 17 in the inner limb of the bracket. This inner limb is also provided with a slot 12 which receives the axle 11 of the main roller 10, the axle being secured in place by a binding nut 20. The main roller may be removed by releasing the nuts 20, the auxiliary rollers being then lowered into use to support the front of the machine.
Patent GB-680262-A (GB)
Title: Improvements in or relating to gun mountings
IPC: B63G1/00
Filed: 1949-07-28
Abstract: 680,262. Ordnance. BREVETS AEROMECANIQUES SOC. ANON., and KUIJVENHOVEN, A. W. July 26,1950 [July 28, 1949], No. 18695/50. Divided out of 19890/49. Classes 92(i) and 92(ii) A plane-stabilized gun mounting has the gun mounted to move about three mutually perpendicular axes, the movement being controlled by stabilizing and aiming apparatus of which the latter is carried by the stabilized gun but is mounted to be trained and elevated with respect to it. The arrangement is shown diagrammatically in Fig. 1 wherein the gun g, its carriage c, and base b rotate about the axes III, II and I respectively, the sight being indicated at s and the stabilizer at S and a control stick at C. The sight may include a gimbal mounted gyroscope normally spinning with its axis parallel to the gun axis but lagging behind when the target is being tracked, or alternatively the rate of turning of the gun in training and elevating may be measured in the device c and the required sighting corrections, calculated by known mechanisms, applied to the sight. In Fig. 2 the guns are fixed to a cabin 1 which pivots about trunnions 5 on a saddle 6, the latter pivoting about journals 7 on a turntable 8. The sight 11 is fitted to the cabin and the gyroscopic stabilizer 10 is mounted on the turntable 8. Specification 657,668 and U.S.A. Specification 2,586,469 are referred to.
Patent GB-516375-A (GB)
Title: Improvements in or relating to refrigerating processes and apparatus
IPC: F25B43/00
Filed: 1938-06-23
Abstract: 516,375. Vapour-operated pumping devices. CRACKNELL, R. J., and U.D. ENGINEERING CO., Ltd. June 23, 1938. No. 18709. [Class 102 (ii)] [Also in Group XIII] A vapour-operated pumping device for recirculating unevaporated refrigerant from a separator vessel at the outlet side of a refrigerating evaporator back to the inlet of the evaporator comprises a chamber 22 having liquid inlet and outlet valves 47, 57 and a float 41 actuating inlet and outlet pressure-vapour valves 33, 37. The float is guided upon a tube 39 carrying at. its upper end the outlet valve 37, which has a finned extension 36 slidable in the exhaust port 25, the tube being slidable on a vertical pin 40 at its lower end. As liquid flows by gravity into the pump chamber the float rises and contacts with a flange 42 on the tube to raise it and to cause the exhaust valve to be forced to its seat by the vapour pressure, and simultaneously a lever 44 is rocked to open the vapour supply valve 33 to effect discharge of the liquid. When the chamber is empty the float engages a flange 43 at the lower end of the tube 39 to depress the tube and open the valve 37, and allow the valve 33 to close. The float is vented by a pipe 70. Rapid action of the float on the valves may be ensured by a rolling ball weight 77, Fig. 4, in a pivoted tube 76 which offers temporary resistance to the rise of the float and then allows it to rise quickly. In a modification magnetic or like valves may be arranged in the vapour conduits and be controlled by a float-actuated rocking switch inside the pump chamber.
Patent GB-672168-A (GB)
Title: Improvements in or relating to fixed ovens for treating weakly caking or non-caking coal
IPC: C10B1/04
Filed: 1950-07-26
Abstract: 672,168. Vertical retort furnaces; coking- apparatus. REGIE DES MINES DE LA SARRE. July 26, 1950 [Oct. 10, 1949], No. 18723/50. Classes 51 (ii) and 55 (i). In a fixed vertical retort, intended particularly for the production of semicoke from weakly-coking or non-coking coal, the coal passes from a hopper 1 through superposed distillation chambers 3 and 4 heated to differing temperatures by quincuncially disposed radiant tubes 5 of triangular section which are blind at one end and supplied with heating gases through tubes 6 from chambers 7 and 71, respectively, the tubes 6 being formed with holes within the radiant tubes 5 so that the latter are heated uniformly, and the semi-coke issuing from the distillation chamber 4 is cooled in a chamber 11 by in-coming air and gas burnt to provide the heating gases and is discharged by continuously operated mechanism 20. Distillation gases and vapours accumulating below the triangular tubes 5 pass through passages 8 into collecting chambers 9 and 9<SP>1</SP> and are directed to condensers which also receive residual vapours collected below baffles extending downwardly and inwardly of opposite walls of the cooling section, where triangular cooling tubes 12 divided into two sections are supplied with gas at 13 and air at 15, the gas and air outlets being 14 and 16 respectively.
Patent GB-277467-A (GB)
Title: Improvements in or relating to photometers
IPC: G01J1/42
Filed: 1926-07-27
Abstract: 277,467. General Electric Co., Ltd., Campbell, N. R., and Eden, C. G. July 27, 1926. Photometric apparatus.-Photometers for rating incandescent lamps utilize two photo-electric cells of differing frequency sensitivity characteristics, e.g. a rubidium cell and a sodium cell, the ratio of the currents through the cells depending upon the spectral distribution which is found to vary with the efficiency. For continuous and high-speed determination of lamp efficiencies means are provided for inserting the lamps automatically into a light-tight enclosure in definite relationship with the cells and removing them. A pair of slip rings, Fig. 1, divided into sections 1, 2, 3 are adapted to receive lamps 4 - - 9, the section 1 being dead and section 2 being supplied at a voltage regulated by the resistance 12 according to the rated voltage of the lamps. This section is lengthened if it is intended to be used with lamps not already aged so that they may reach a steady state, being passed to the slip 3 where test is made. The voltage across the section 3 is regulated by resistances 15, 16 above and below the rated voltage, the variation being effected by the rotary switch 18. Three pairs of photo-electric cells are connected in parallel and joined electrically to the moving member of an electroscope, which is earthed when a lamp is passing to or from the section 3. The two voltages impressed by the switch 18 give two readings for each lamp, and the adjustments are made so that if the rating lies between prescribed limits the readings are in opposite senses. The apparatus, Fig. 3, enables the lamps to be tested by an operator merely inserting and removing lamps and observing the readings of the electroscope. A motor-driven shaft 36 drives the shaft 39 provided with cams 41, 42, toothed wheels 43 and switch 44. The cam 41 lifts and lowers the sleeve 48 of the light-tight enclosure 80 containing the photo-electric cells 20, 21. Cam 42 cooperates with the switch arm 49 of switch 35, carrying contact 50 which is earthed, for connecting the electroscope. The switch 44 corresponds to the switch 18, Fig. 1, and the toothed wheel 43 intermittently actuates a vertical shaft 61 rotating the carrier 70 for the lamps. In operation, the lamps are removed and inserted by the operator, the arms of the carrier 70 being rotated one-sixth of a revolution each time the sleeve 48 is lowered. When the sleeve 48 of the lightdiffusing enclosure is in its fully-raised position the switches 18, 35 are operated to give the desired readings. A whitened screen 87 is fitted in the enclosure 80 to shield the cells 20, 21 from direct rays. from the lamps.
Patent GB-1462735-A (GB)
Title: Pneumatic tyres
IPC: D07B1/06
Filed: 1975-05-05
Abstract: 1462735 Joining wires MICHELIN ET CIE (COMPAGNIE GENERALE DES ETABS MICHELIN) 5 May 1975 [6 May 1974] 18772/75 Heading F2G A connector sheath 10 for joining metal cords suitable for use in the reinforcement of vehicle tyres comprises a hollow cylindrical braiding formed by threads or wires 22 which are helically interwoven and embedded in a cylindrical body 21 of rubber covering the internal face of the braiding and filling the interstices therebetween. The rubber body 21 is in use vulcanized to the braiding and to the exterior surface of the cords to be joined.
Patent GB-223958-A (GB)
Title: Improvements in or relating to endless track vehicles
IPC: B62D11/20
Filed: 1923-07-21
Abstract: 223,958. Dawson, Sir A. T., and Buckham, Sir G. T. July 21, 1923. Relay or power apparatus; adjusting and connecting forecarriages and bogies for steering; non-reactive steering-mechanism for separately - pivo'ted wheels; steering-gear. - In an endlesstrack vehicle of the kind in which a rear pair of endless tracks A are swung for steering in the opposite direction to a front pair of tracks C or a front pair of steering wheels, the steering is effected by power transmitted from the engine. The rear tracks are mounted on a bogie B pivoted at b and formed with a worm sector actuated by a worm shaft e. This shaft also swivels the front wheels or tracks through a sector D and crossed rods C<2>. A constantly-rotating engine-driven shaft f is connected to the shaft e through a differential gear controlled by a hand-wheel F<4>, Fig. 6, acting alternately on a brake f<1> and a clutch f<3>. When the hand-wheel is rotated in one direction it applies the brake and the shaft e is driven in the same direction as the shaft f, when the hand-wheel is rotated in the other direction the differential gear is locked by the clutch and the shaft e is driven in the opposite direction to the shaft f.
Patent GB-917547-A (GB)
Title: Improvements in or relating to electrically operated hoists
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B66D3/22
Filed: 1960-05-27
Abstract: 917,547. Electric hoists. KING Ltd., GEO. W. May 17, 1961 [May 27, 1960], No. 18824/60. Class 78 (5). In an electrically-operated hoist in which the motor 15, Fig. 1, is disposed internally of the drum 14, the assembly is carried by a frame 10 having a fixed end plate 11 carrying the brake assembly 24 at one end and a detachable end plate 12 carrying a gear train 34-37 at the other end. The detachable end plate 12 is slotted to engage over tongues 13 on the member 10 for endwise withdrawal. The drum 14 is rotatably supported near the fixed end plate 11 by a detachable flange 20 running on a bearing 19 seated on the motor housing 18 which is attached to the end plate 1 by bolts 23 and an annular plate 22. At the other end, the drum 14 is supported by a gearbox output spigot 32 running on bearings 38, 39 mounted within the detachable end plate 12. The motor shaft 15<SP>1</SP> runs on needle bearings 26 within the output spigot 32 and a spline connection 33 with the gear-box input shaft 31 is provided for endwise withdrawal. The arrangement provides for ready dismantling of the hoist in three stages. (1) Withdrawal of the brake unit 24 after removal of four retaining screws 25 on the fixed end plate 11. (2) Withdrawal from the support frame 10 of the winch assembly as a single unit comprising the winding drum 14, motor 15, gear-box 28 together with the end plate 12 following the removal of retaining screws 23 and annular plate 22. (3) Separation of the drum 14 and motor 15 by removal of the drum end plate 20 following extraction of four radial screws 21. In the example, the drum 14 and gear-box output spigot 32 are connected by bolts 30. In a modification, Fig. 3 (not shown), the parts are welded together through an intermediate conical member.
Patent GB-576061-A (GB)
Title: Improvements in locks and fastening devices
IPC: E05C3/24
Filed: 1943-11-12
Abstract: 576,061. Latches. YOUNG, L. W. Nov. 12, 1943. No. 18884. [Class 44] A swinging latch 16 rotates on a vertical spindle 14 and engages a bolt 22 fixed to a plate 24. A swinging locking member 30 is secured to the actuating bar 38 of a pin tumbler lock 42 and engages a shoulder 28 on the latch to lock it in the engaged position. In a modification shown in Fig. 3, the sliding locking member 31 is loaded by a spring 50 and is withdrawn by a cam 58 attached to the actuating bar 56. The cam 58 may be arranged so that on reverse rotation it engages a projection on the member 31 to deadlock the member. The locking member 31 may also be actuated by a cam 66 connected to a handle 62. In another modification, the end of the pintumbler lock cylinder is cut away, the projection forming a locking member for the latch. The Provisional Specification describes also an arrangement in which recesses in the edge of the latch co-operate with tumblers in a fixed part and a key is inserted in a slot in the fixed part. In another arrangement the latch is mounted on a horizontal axis and arranged to swing away from the bolt under the action of gravity. A further modification is described in which the latch has a notch engaged by a notched disc released by a key.
Patent GB-986417-A (GB)
Title: Lampholder
Inventor: HEATH CLARENCE WILLANS
IPC: H01R33/46
Filed: 1962-05-16
Abstract: 986,417. Lampholders. CARR FASTENER CO. Ltd. April 10, 1963 [May 16, 1962], No. 18907/62. Heading H2E. A lampholder comprises a metal tube 1 with a connector 9, and a spring-loaded plunger 6 carrying a centre contact 8, the head of the tube being flanged at 2 and embedded in a resilient panel-mounting clip 16 of nylon. In a modification, Fig. 2 (not shown), the central contact is mounted on a hollow nylon bush which protects the connecting wire.
Patent GB-219272-A (GB)
Title: A process for producing a non-peroxidising ether
IPC: C07C41/44
Filed: 1923-07-24
Abstract: Ether which does not peroxidize on exposure to the air is prepared by treating ordinary or purified ether with an excess of benzidine or a homologue or substitution product thereof, filtering off the ether and distilling it.  Specification 219,273 is referred to.
Patent GB-299080-A (GB)
Title: Improvements in or relating to filters
IPC: B01D46/04
Filed: 1927-07-19
Abstract: 299,080. Brand, J. J. C., and Laing, B. July 19, 1927. Filters having sheet filtering-materials. - A filter element, formed of a series of coaxial cones, alternately upright and inverted, is suspended in a: casing with its lower end attached to a frame, which is resiliently secured to the casing, a connection from the frame being passed to the exterior of the casing so that the element can be vibrated to detach matter deposited thereon. A filter A, fitted in a cyclone separator B for separating air from powdered fuel, is made by folding a cone of fabric upon itself around rings a, a<1>, a<2> - - to form a series of coaxial cones. The rings a, a<2> - - are attached to supports c', and the rings a<1>, a<3> - - to supports c<2>. The casing B has a vent b for air, and a cone d directs the powdered fuel to an outlet tube d'. The supports c<2> are connected by springs e to plates d<2> riveted to the tube d', and the filter is shaken to detach dust therefrom by means of a wire rope e<3>, which passes round pulleys e<1>, e and is connected to the supports c<2>.
Patent GB-680057-A (GB)
Title: An injector device for promoting water circulation in steam boilers
IPC: F22B37/72
Filed: 1950-08-01
Abstract: 680,057. Promoting water circulation in steam boilers. MARTINEZ, J. A. P. Aug. 1, 1950 [March 3, 1950], No. 19176/50. Class 123 (ii) [Also in Group XXVIII.] In an injector device, for promoting circulation of water in a steam boiler, comprising a T-piece having flanges N, L, M for connection, respectively, to the boiler feed-water supply pipe, and pipes extending through the boiler near the water surface and bottom thereof, the two axially-aligned arms 1, K of said T-piece are fitted with aluminium-bronze linings A, B in the form of conical nozzles opening at their inner ends, which are conically-shaped as shown, into a chamber F in communication with the third arm J.
Patent GB-938181-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L29/00
Filed: 1960-05-31
Abstract: 938,181. Semi-conductor devices. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. May 31, 1960 [July 30, 1959], No. 19199/60. Class 37. In a device comprising a PN junction extending to a plane surface of a semi-conductor wafer covered with an insulating layer of oxide of the semi-conductor, contacts made to the P and N regions through apertures in the oxide layer are extended over the layer. The device shown in Figs. 1 and 2 is made from a monocrystalline wafer of intrinsic silicon, the low conductivity of which is attained by selecting impurity free material or by reducing the effect of the activator impurities in less pure silicon by doping with gold. The N and P type zones shown are formed by diffusion of activator impurities through masks during which process, carried out in oxygen, a thin insulating oxide layer 5 is formed on the silicon. Selected parts of this layer are subsequently removed by a photo-engraving technique and aluminium contacts 6, 8 evaporated on the exposed parts through a mask. Leads 7, 9 to the contact may be formed in the same operation or subsequently. As an alternative, aluminium is evaporated over the whole of the coated face and unwanted parts of the aluminium removed by photo-engraving to leave emitter and base contacts and leads of the illustrated form. High shunting capacitance between the leads and body through the oxide layer is avoided in this construction in which the material under the leads is mainly of intrinsic conductivity. Figs. 3 and 4 illustrate a detector amplifier circuit formed from a single wafer 11 of silicon. The zone configuration shown is produced by impurity diffusion through masks into the upper surface of the wafer. As in the previous example an oxide layer 27 is formed at the same time. Contact areas on the various zones are cleared by photo-engraving. The metal contacts and leads shown in Fig. 3 are then produced either by evaporation of aluminium through a mask or by coating the entire upper surface with aluminium and removing the unwanted parts by photo-engraving. The body shown corresponds to the circuit shown in Fig. 5. The series connected rectifiers 14<SP>1</SP>, 15<SP>1</SP> are formed by PN junctions 14, 15 interconnected by aluminium layer 17, the transistors by junctions 20, 21 and the zones forming them, capacitors 18<SP>1</SP>, 22<SP>1</SP> by PN junctions 18; 22 and resistors 30<SP>1</SP>, 31<SP>1</SP>, 321 by the leads 30, 31, 32 which may be so dimensioned as to have suitable resistance values, and by the resistance across the thickness of the wafer from ohmic contact 26 to the plated ohmic contact 13 which forms part of resistor 32<SP>1</SP>. In another transistor formed by similar methods the emitter zone is an elongated island in the upper surface of the wafer and the emitter and base contacts are parallel elongated layers from which leads extend in opposite directions across the oxide layer.
Patent GB-1417048-A (GB)
Title: Electrical circuit for transmitting information between a  vehicle travelling on a track and a control station connected  to the circuit
IPC: B61L3/22
Filed: 1973-04-19
Abstract: 1417048 Inductive signalling SIEMENS AG 19 April 1973 [21 April 1972 31 Jan 1973] 19199/73 Heading H4U [Also in Division B7] A line side circuit, formed of conductors L1, L2 with cross-overs, which extends alongside railway track S1, S2 for signalling between a train and a central control office SE and/or vice versa, is terminated by a pair of resistors RE11, RE12 or RE21, RE22 equal to the characteristic impedance of the circuit and the junction of the resistors is coupled by a low impedance connection to one of the rails. The arrangement is said to improve the transmission quality of the circuit. The resistor junction can be connected to the rail via a capacitor having a low impedance at the operating frequency so that a D.C. test signal can be applied to check continuity of the circuit.
Patent GB-1280745-A (GB)
Title: A container for pneumatic carrier systems
IPC: B65G51/06
Filed: 1970-04-22
Abstract: 1280745 Pneumatic despatch apparatus MEILINK STEEL SAFE CO 22 April 1970 [1 May 1969] 19210/70 Heading B8A A longitudinally hinged container 110, for use in a pneumatic tube conveyer system comprises two sections 120, 130 hingedly connected by a pin 140 connecting knuckles 121, 131 and urged towards each other by springs (41), Fig. 3 (not shown). Locking caps 150, 160 are provided on either end of sections 120, 130, together with buffer pads 151, 161 and also with elastic discs 152, 162 to seal the container in the pneumatic tube. In the locked position of the container, Fig. 6, the cap wall 153 surrounds an end cylindrical flange 126 and engages the peripheral surface 138 of the section 130 thus locking it to the complementary section 120. A comparison spring 141 surrounds a stud 127 on the section 120 and at one end bears against the cap 150 and at its other end against a stop 142 thus urging the cap 150 into its locked position. Cam means comprising helical slots 129 in the flange 126 and follower pins 155 in the cap wall 153 permit the separation of the sections 120, 130 on rotation of cap 150 which thus moves axially away from the said sections. Instead of the pins and slots the cam and its associated follower may comprise angularly disposed grooves (229) and lugs (225), Fig. 9 (not shown), while the spring 141 may be replaced by ring magnets (344), (345) of opposite polarity, Fig. 10 (not shown).
Patent GB-999827-A (GB)
Title: Blend of polypropylene and polybutadiene
IPC: C08L23/12
Filed: 1962-05-18
Abstract: 100 Parts of crystalline polypropylene is blended with 3 to 15 parts of a rubbery, linear polybutadiene of the following microstructure  5 to 12% of 1,2-addition product  25 to 70% of cis-1,4-addition product.  Balance trans-1,4-addition product.  A hydrocarbon solvent may be utilized in forming the blend.