baber/WOPTO huggingface dataset:
Patent GB-680293-A (GB)
Title: Method and device for conveying concrete or mortar to work
IPC: F04F1/06
Filed: 1949-11-15
Abstract: 680,293. Cement guns. GRANDORI, C. Nov. 15, 1949, No. 29202/49. Class 20(ii) [Also in Group XXVIII] Concrete or mortar is forced under air pressure from a container 1 through delivery piping 4 to shuttering and at the same time is subjected to vibration from vibrators 3, 5. Whilst the vibrators 5 are applied to the outside of the piping 4, the vibrator 3 is located inside the chamber 1 and is suspended from a lever 7 and rod 9, the latter being provided with stops 11, 12 which engage a cover 2 movable downwards to uncover an annular opening 17, and upwards to compress an annular rubber packing 18 and thus to seal the container. After concrete is poured into the container from a hopper 6, the container is sealed and air forced in at 13 and while the vibrators 3, 5 are in operation, the vibrator 3 is reciprocated slowly by acting on the lever 7. The hopper 6 and sealing means may be replaced by a pump to provide a continuous supply of concrete.
Patent GB-677424-A (GB)
Title: An anti-slip mounting for footwear
IPC: A43C15/06
Filed: 1948-11-11
Abstract: 677,424. Anti-slip attachments for footwear. LUNSHOF, B. Nov. 11, 1948, No. 29320/48. Class 17 (ii). Sole and heel plates 1, 2 with ground engaging projections 3 have projections 15, 16, 17 for engagement with the sides of a shoe sole or heel. Hooks 6 on the sole plate 1 engage a hook-shaped edge 5. on a member 4 pivotally attached by a rod 11 to lugs 9 on the plate 2. A series of holes 10 is provided in the lugs to permit adjustment for different sizes of footwear. The arrangement is such that when the plates 1 and 2 are engaged with one another by the member 4 and positioned on the shoe, they are drawn into firm engagement with one another when the parts of an attaching strap 13 secured to or which engage slots in the member 4 are pulled.
Patent GB-949055-A (GB)
Title: Improved subscription television system
Inventor: VAST ERIC CHARLES
IPC: H04N7/173
Filed: 1960-08-25
Abstract: 949,055. Television audience survey systems. RANK ORGANISATION Ltd. Aug. 25, 1961 [Aug. 25, 1960], No. 29352/60. Heading G4H. A central station A transmits interrogating signals over line 1 which also relays broadcast programmes to receiver B. The interrogating signals comprise a sequence of different frequencies modulated on a carrier which lies outside the frequency band occupied by the programme signals. Each receiver B is responsive to a selected interrogating signal, filters 8-11 setting triggers 12-15 in sequence when the appropriate interrogating sequence is received, and a pulse is transmitted back to the central station A from oscillator 16. The receivers may be scanned in order by transmitting all the possible interrogating  signals one after the other. Each interrogating signal may be individual to a particular receiver or a group of receivers may respond to each interrogating signal, in which case a different characteristic delay period is associated with the different receivers in a group so that each interrogating signal gives rise to a train of response pulses, a missing response pulse indicating that the associated receiver is inoperative (switch 5 open). A survey of the different programmes being received may be obtained by using a different set of interrogating signals for each programme, or the frequency of oscillator 16 may be varied by a programme selecting switch so that the time at which a response pulse is received identifies the receiver as before, but in addition the frequency of the response pulse indicates the programme being received.
Patent GB-300776-A (GB)
Title: Improvements in hand trucks for drums containing fluid material for use in dressing and repairing road and like surfaces
IPC: B62B3/10
Filed: 1927-11-04
Abstract: 300,776. Dickinson, T. W. Nov. 4, 1927. Hand-trucks for drums containing road and the like surface dressing material comprise a frame A, B having road wheels C and a spindle provided with rollers H which are preferably bevelled to correspond with the drum 1. The drum I is laid on the rollers H as shown and pushed into position on the truck so that the bung hole in the end of the drum is available for discharging fluid on to the road &c. Pivoted legs D with wheels E are pivoted to the frame and may be held in any adjusted position by means of pins G engaging holes in the legs and in quadrants F.
Patent GB-867108-A (GB)
Title: Improvements relating to work handling mechanisms
Filed: 1958-09-15
Abstract: 867,108. Quenching. GLEASON WORKS. Sept. 15, 1958 [Sept. 20, 1957], No. 29539/58. Class 72 [Also in Group XXX] A quenching press 20 comprises an upper die 37 carried by piston rod 36 of a piston and cylinder type ram 34, and a lower die 27 mounted on a platform 21 which is carried by a pair of arms 22 mounted for swinging about a horizontal shaft 23. The platform 21 is oscillated between the fullline and chain line positions by crank gear 28, the platform 21 being maintained level by a pin 25 on the latter engaging a groove 26 on the machine. In the latter position of the platform 21 the lower die 27 receives the workpiece W from grippers carried by one arm of a two-armed lever 41, after which the platform is returned to the full line position. The upper die 37 is then lowered on to the lower die 27, cooling fluid is circulated by means not described, the upper die 37 then being raised and the platform 21 returned to the chain-line position so that the finished workpiece may be picked up by grippers carried by the other arm of lever 41, the movement of the various parts of the press and of a work handling mechanism comprising the lever 41 (see Group XXX) for feeding workpieces to and discharging them from the machine being co-ordinated by a control system (Fig. 2, not shown).
Patent GB-1302583-A (GB)
IPC: B29C48/03
Filed: 1970-06-18
Abstract: 1302583 Rotary plate extruder SOC D' ETUDES VERRIERES APPLIQUEES 18 June 1970 [19 June 1969] 29544/70 Heading B5A [Also in Division B1] In a device for plasticizing and extruding, or mixing materials (and which may be provided with cooling means), comprising a stator 4 between which and a rotor 1 the material is inwardly impelled from a circumferential annular space 10 to an inner outlet 6, e.g. an extrusion die for a plurality of filaments or for a rod, the material, e.g. powdered polyvinyl chloride for extrusion, is fed into the space 10 from a hopper 7 by a variable speed metering screw, which is driven independently of the vertical rotor shaft 2, and is displaced inwardly into the gap 5 between the rotor 1 and stator 4 by a crown of deflecting hooks 11 which are attached to the rotor 1 and rotate within the annular space 10. The hooks 11 are profiled so that they sweep through the entire volume of the space 10, the leading edge 22, as in Fig. 3 wherein six hooks 11 are provided, scraping the outer wall of the space 10 and the trailing part projecting across the width of the space 10, to sweep material inwardly, from a flat ring 25 with which the hooks are integral and by which they are attached to the rotor 5. In the Fig. 5 embodiment, six hooks are provided having a front edge 32 and a dependent outer side wall 33, and the Fig. 7 embodiment (not printed) discloses two similar hooks.
Patent GB-254958-A (GB)
Title: Improvement in submarine hammer drill units
IPC: E21B7/12
Filed: 1925-11-23
Abstract: 254,958. Ingersoll-Rand Co., (Assignees of Hansen, C. C.). Aug. 24, 1925, [Convention date]. Percussive drills. -Subaqueous boring is effected by a fluid-operated hammer drill C carried at the lower end of a frame K which is movable vertically m guides and carries a motor t which, through gearing v, shaft u and gearing w, x, rotates the drill steel U. The drill steel is held by pivoted members 3 controlled from above through a rope 6 and links 5.
Patent GB-383036-A (GB)
Title: Improvements in the manufacture of bricks, blocks, tiles and the like
IPC: B28B11/06
Filed: 1931-10-27
Abstract: Sand-faced bricks are produced by pressing the brick in a mould, applying a sand blast to a face or faces of the pressed brick and subsequently baking the brick.  The brick may either be pressed directly from the clay mass as in the manufacture of Fletton bricks or it may be obtained by wire-cutting and subsequent treatment in a press.  The sand blast is applied at an angle of 45 DEG  to the face of the brick and may be applied to two faces either simultaneously or consecutively.  According to the Provisional Specification the sand may be chemically or otherwise prepared to give various colours to the brick or tile, and it may be applied to an extruded clay column and to clay goods in general.  Specification 370,613 is referred to.
Patent GB-746168-A (GB)
Title: Improvements relating to the cooling of electric machines
IPC: H02K3/24
Filed: 1954-10-15
Abstract: 746,168. Cooling dynamo-electric machines. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 15, 1954 [Oct. 16, 1953], No. 29772/54. Class 36. In a rotor with axial passages 3 in the conductors, partitions 1, 2 are provided at intervals to split the rotor axially into sections, the end sections receiving fluid which has entered by radial inlets 6 in the end windings and and discharging it radially to the air gap near the other end of the. section by outlets 8 while intermediate sections receive fluid from sub-slots 12 from whence it passes axially through a section and is discharged radially to the air gap, e.g. by outlets 16, 22. The third section from each end may solely or additionally be supplied by fluid which has passed axially through ducts 17 in the rotor teeth and thence by passages 18 into the bottom of the conductor slots as shown in Fig. 4 (or into the sub-slots 12 if these extend to the 3rd section).
Patent GB-779938-A (GB)
Title: Improved process for the preparation of olefin dichlorides
IPC: C07C17/02
Filed: 1955-10-19
Abstract: An olefin dichloride is obtained by charging an olefine and chlorine to a liquid body of the olefine dichloride, reacting the olefine and chlorine within the liquid body of the olefine dichloride in the presence of a chlorination catalyst, e.g. the chlorides of iron, antimony and copper, utilizing the exothermic heat of reaction to vaporize a portion of the liquid body and subjecting the resulting vapours to rectification to separate liquid olefin dichloride from by-products (e.g. 1,1,2-trichloroethane), formed during the reaction. Preferably the mol. ratio of olefine to chlorine employed is in the range 1.1 : 1 to 1.3 : 1.  The reaction may be effected between 80 DEG  C. and 100 DEG  C. at a gauge pressure from 0 to 25 pounds per square inch. An example describes the chlorination of ethylene. Propylene and butylene are also mentioned.
Patent GB-886344-A (GB)
Title: Production of silicon halides
Inventor: ARKLESS KENNETH
IPC: C01B33/08
Filed: 1958-09-17
Abstract: Silicon halides (excluding silicon fluoride) are produced by reacting finely divided silica or silica-bearing materials in suspension in a molten alkali metal or alkaline earth metal halide with a halogen gas in the presence of an oxygen acceptor, preferably carbon or carbon monoxide.  Phosgene may be used as oxygen acceptor and halogen. Silica, e.g. zircon or spent bauxite clay containing at least 25% wt. SiO2, and of particle size 76-1000m , is suspended in a molten halide bath in which the halide is preferably the same as the halogen gas employed.  The carbon may be coke, graphite or anthracite having a particle size 50m  to 2 inches and usually at least twice the average size of the silica employed.  The reaction in the presence of carbon, which may be added before or during reaction with the halogen, is generally assisted by external heating, electric induction heating or by the heat produced by the addition of O2 to react with the carbon. Carbon monoxide, which may be added at the same time e.g. in admixture with, the halogen supplied to the melt, causes an exothenuic reaction and the process proceeds autothermally. Reaction temperatures below 1100 DEG C. e.g. 600 DEG -1000 DEG C. may be employed.  In order to accelerate the reaction in the presence of carbon, boron or boron compounds e.g. boron halides or boron compounds which react with the halogen in situ to produce boron halides, for example, boron carbides, ferro-boron, anhydrous boric oxide or metal borides e.g. alkali metal or alkaline earth metal borates especially borax, may be incorporated as catalysts in the melt.  Preferably such catalysts are halides of the same halogen as the halogen gas employed, are volatile e.g. Bcl3, and are added to the melt in the halogen gas.  The boron halides may be recovered from the reaction products and recycled.  Specification 864,538 is referred to.
Patent GB-462997-A (GB)
Title: Improvements in or relating to synchronous electric motors
IPC: H02K19/08
Filed: 1935-10-29
Abstract: 462,997. Alternating-current motors. WESTINGHOUSE ELECTRIC & MANUFACTURING CO. Oct. 29, 1935, No. 29825. Convention date, Dec. 20, 1934. [Class 35] In a synchronous hysteresis motor, the parts are so proportioned that approximately half of the magnetomotive force is expended in the hysteresis member, the radial thickness thereof being equal or approximately equal to P<2>/4uL where P is the stator pole pitch, L the radial air gap thickness and u the permeability of the rotor material. In the form shown the stator coil 7 surrounds a central core at one end of which are discs 15 each with bent teeth 16 and separated by a shading plate 17 and these teeth are imbricated with those on discs 15 at the other end of the core, the second pair of discs also being separated by a shading plate. The rotor comprises a thin split steel ring 32 sprung into a non- magnetic cup 23 which surrounds the stator. The system of lubrication is also described.
Patent GB-680824-A (GB)
Title: Improvements relating to band-pass coupling circuits
Inventor: O'DELL ALBERT GEORGE
IPC: H03H7/01
Filed: 1949-11-23
Abstract: 680,824. Radio receiving circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Oct. 11, 1950 [Nov. 23, 1949], No. 29967/49. Classes 40 (v) and 40 (vi). [Also in Group XL (b)] In a band-pass coupling circuit comprising first and second transformers 3, 4 respectively, each having tuned primary and secondary windings-resonating with condensers 7, 13 and 25, 18 respectively-and wherein means are provided for varying the coupling between the primary and secondary circuits of the respective transformers to vary the pass-band of the circuit, the coupling between the secondary of the first transformer and primary of the second takes the form of a shunt resistance which is adjustable to enable the gain to be maintained relatively constant when the passband is altered. Variation of the pass-band is effected by switches 10, 21 which, in the position shown, introduce additional coupling condensers 8, 20 into the circuits of the respective transformers ; switch 15 at the same time introduces additional resistance 16 in parallel with the resistance 17 coupling the transformers together, so as to maintain the gain constant. Switches 10, 15, 21 may be ganged with a tone-control switch (not shown). Padding condensers 9, 19 are provided to correct the tuning of the respective secondary circuits, when switches 10, 21 are reversed.
Patent GB-136157-A (GB)
Title: Improvements in Machine-made Embroidery with Reliefs.
Inventor: HOFER HANS
IPC: D05C17/00
Filed: 1919-12-02
Abstract: 136,157. Hofer, H., (Assignee of Wild, J. E.). Dec. 2, 1918, [Convention date]. Embroidery. - High reliefs in machine-made embroidery are formed by working over stiff pads of any desired shape. The pads may be formed of glass, mother of pearl, wood, or pressed wood pulp or other non-textile material. A pad may have a central hole and be covered by stitches radiating from the hole. The high reliefs may be surrounded by pierced hollow effects.
Patent GB-498666-A (GB)
Title: Improvements in oil and other reciprocating liquid pumps
IPC: F16N13/10
Filed: 1938-03-24
Abstract: 498,666. Lubricating-pumps. CROSS, R. C. March 24, 1938, No. 30125. Divided out of 498,648. Drawings to Specification. [Glass 102 (i)] The pump is the same as that described in Specification 498,648. The statement of claim is, however, directed to the lever-operating mechanism.
Patent GB-238441-A (GB)
Title: Improvements in and relating to electric lift machines and the like
IPC: B66B11/04
Filed: 1924-12-15
Abstract: 238,441. Knutsen, J. B. M. Dec. 15, 1924. Electric plant. - In floorlevelling apparatus for electric lifts the movement of the switch on the cage to stop the latter, establishes circuits so that the operation of well switches by the moving cage brings auxiliary reduction and reversing gearing into action. Fig. 3 shows the auxiliary gearing comprising a motor shaft 9 driving a sleevs 18 through epicyclic gearing. A clutch 23 carried by the sleeve 18 is normally held in the engaged position by springs 48, but can be disengaged by energizing the electromagnet 43. This electromagnet is connected by means of a casing 42 to a second electromagnet 36, the energization of which disengages a clutch 40. The electromagnet 36 is secured to the driven shaft 33 which leads to the ordinary worm reduction gear and the winding drum. In the event of under-running the circuits established by the wall switches take out the clutch 40 and remove a band brake from the clutch member 22, leaving the clutch 23 closed and a band brake applied to the casing 5<a>. The epicyclic gearing then acts as a spur train transmitting a reduced forward motion to the sleeve 18, clutch 23 and connected electromagnets to the driven shaft 33. At the floor level another well switch cuts off power from the motor and restores the " soliddrive " position of the auxiliary gearing, with both clutches closed and both band brakes applied, the brakes then stopping the cage. When overrunning occurs, the clutch 23 is opened and the brake taken off the casing 5<a>. In this case the pinion 17 is held stationary by the brake, on the member 22, and the casing 5<a> rotates to transmit a reverse drive to the shaft 25 through the connecting member 26. The shaft 25 is connected to the electromagnet 36 and driven shaft by the clutch 40. The apparatus is restored to the " solid-drive position at the floor level as before. In a modified arrangement the auxiliary gearing is fitted inside the winding drum. An arrangement of controlling circuits is described and illustratad in the Specification.
Patent GB-714442-A (GB)
Title: Automatic frequency control circuits
Inventor: PUGSLEY DONALD JOHN DAVEY
IPC: H04N5/12
Filed: 1951-12-24
Abstract: 714,442. Pulse generating circuits. PYE, Ltd. Dec. 24, 1952 [Dec. 24, 1951], No. 30165/51. Class 40 (6). [Also in Group XXXV] A circuit for producing the waveform shown in Fig. 3 comprises a triode valve V, Fig. 4, fed on its grid with a sine-wave voltage and with a condenser C2 connected across anode and cathode. The saw-tooth voltage normally produced on this condenser is combined with a sinewave voltage fed from the grid input via a condenser C1 and resistor R3 to a tapping on the anode resistor R1.
Patent GB-1187974-A (GB)
Title: Improvements in and relating to the Refining of Metal.
Inventor: RHYDDERCH MALVERN JOHN
IPC: C21C5/56
Filed: 1966-05-23
Abstract: 1,187,974. Refining metals. BRITISH IRON & STEEL RESEARCH ASSOCIATION. May 22, 1967 [May 23, 1966; July 5, 1966], Nos. 23739/67 and 30198/66. Divided out of 1,187, 972. Heading C7D. In a process and apparatus for refining molten metal the latter is allowed to fall freely under the influence of gravity from a nozzle such that the metal stream has a cross-section e. g. rectangular or elliptical, of which the major dimension is several times larger than the minor; the stream is shattered by one or more streams of oxidizing gas which impinge on and extend across one or each side of major dimension of the metal stream. As shown in Fig. 4 metal is discharged from tundish 12, and the stream is shattered by jets of gas from nozzles 5; there is also provision for supplying a curtain of flux along the major sides of the metal stream. The gas discharge means may have convergent-divergent nozzles to accelerate the flow of gas therethrough.
Patent GB-1377051-A (GB)
Title: Thiophosphoric acid ester amides and their use as insecticides acaricides and nematocides
IPC: A01N57/28
Filed: 1973-06-26
Abstract: 1377051 Pesticidal thiophosphoric acid esteramides BAYER AG 26 June 1973 [27 June 1972 11 Jan 1973] 30233/73 Heading C2P Novel compounds of Formula I where R, R<SP>1</SP> and R<SP>11</SP> are C 1-6  alkyl may be prepared by reacting a compound of Formula II: where M is alkali or alkaline earth metal or optionally alkyl-substituted ammonium with a compound of Formula III: where Hal is halogen. The compounds of Formula I have insecticidal, acaricidal and nematocidal properties and may be used as the active ingredients in conventional pesticidal compositions.
Patent GB-210855-A (GB)
Title: Improvements in means for separating the liquid and solid components of mixtures of liquids and solids
IPC: B01D21/24
Filed: 1922-11-06
Abstract: 210,855. Arbuckle, A. J. Nov. 6, 1922. Fluid-actuated valves. -A fluid-actuated check valve 37, Fig. 7, for controlling the outflow of solids from a settling- tank through a casing 35 to an outlet 38, is carried in a housing 36 and is free to slide on a reciprocating shaft 48, glands 47. 53 being provided between the valve and casing 36, and the valve and shaft 48 respectively. Brackets 45 serve as guides for the valve and weighted levers 41 tend to keep it in the closed position. In a modification, Fig. 11, the outlet 88 from the casing 84 is controlled by a valve 89 carried in a housing 87 and free to slide on a reciprocating shaft 85, glands 91, 92 being provided between the valve and casing 87, and the valve and shafts 85 respectively. A weighted lever 94, forked at 97 tends to keep the valve closed. Specification 195,467, [Class 46, Filtering &c.], is referred to.
Patent GB-1107750-A (GB)
Title: Pneumatic devices for performing logical operations
Inventor: LEVIN VLADIMIR ILICH
IPC: F15C3/00
Filed: 1966-07-06
Abstract: 1,107,750. " And " gate. NAUCHNO ISSLEDOVATELSKY INSTITUT TEPLOENERGETICHESKOGO PRIBOROSTROEN IYA. 6 July, 1966, No. 30360/66. Heading G4P. [Also in Divisions F2 and G3] An " And " gate comprises two discs 2, 2<SP>1</SP>, Fig. 1, and a rod 4 freely located in cylindrical chambers as shown. Simultaneous input signals P1, P2 (above atmospheric pressure) produce an output P, but none or one input signal produces no output (atmospheric pressure). The gate is characterized by the feature that means, grooves 6 and 11, as shown in Fig. 1, are provided so that neither disc can completely block the back-flow of air into an input channel. Modifications are described in which the discs are grooved (Fig. 4, not shown) and in which either the chambers (Fig. 6, not shown) or the discs (Fig. 8, not shown) carry projections so as to prevent the blockage of back-flow into the input channels.