baber/WOPTO huggingface dataset:
Patent GB-121988-A (GB)
Title: Improvements relating to Wheels for Motor and other Vehicles.
Inventor: BODMAN WALTER LIGHT
IPC: B60B15/02
Filed: 1917-12-06
Abstract: 121,988. Bodman, W. L. Dec. 6, 1917. Block tyres; tread projections. -Tractor wheels are fitted with rubber blocks carried on flexible base plates detachably secured to the rims. In the form shown in Figs. 1 and 2, rubber sections 1, each formed with three tread studs projecting through the plate 3, are secured to the wheel rim 6 by bolts 5. To ensure a firm seating on the rim, the plates are formed of flexible metal, threeply wood, or metal-faced wood. Figs. 4 and 5 show a modification in which rhousboidal rubber blocks 10 are secured by enclosed plates 12, and are adapted to receive metal tread studs 11 of the kind described in Specification 123,358.
Patent GB-754973-A (GB)
Title: Improvements in light metal beams for the road-ways of pontoon bridges and the like
IPC: E01D15/14
Filed: 1954-06-21
Abstract: 754,973. Bridges; metal beams and connections. SOC. ANON. POUR L'INDUSTRIE DE L'ALUMINIUM. June 21, 1954 [June 20, 1953], No. 18168/54. Classes 20(1) and 20(2). A light metal beam for the roadway of a pontoon bridge is built up of an upper beam 2 carrying double headed bolts 11 to detachably secure it rigidly on the top of lower beam 1, which may be constructed with retractable pivoted lugs 4 as in Specification 746,218. The two beams are each provided with locating and interengaging teeth 17 to engage in recesses in the other. The beams are locked together by depressing the head 12 of the bolt 11 by a tool and rotating it against the pressure of a spring 15 so that its rectangular head 13 enters a slot 16 in the lower beam and then turning the bolt through 90 degrees to engage a shaped locking plate 19 inside the lower beam. Hand grips 6, Fig. 4 (not shown) with hand entry openings may be provided at the ends of both beams for carrying as in Specification 746,218.
Patent GB-613293-A (GB)
Title: An improved protective device for electric condenser batteries
IPC: H02H7/16
Filed: 1946-06-17
Abstract: 613,293. Protective cut-out arrangements. LANDIS & GYR SOC. ANON. June 17, 1946, No. 18185. Convention date, June 26, 1945. [Class 38 (v)] A condenser battery 19 connected across a network 9 through a switch 14,. is protected against internal shorts by a Ferraris-type relay comprising a voltage-actuated system 3 and a current-actuated system 31 arranged so that the torques impressed on their respective discs 2, 21 are in opposition. A short in the condenser battery causes the system 31 to take a greater current and its torque exceeds that of the system 3, whereupon the disc-spindle 1 rotates and closes a trip contact 12 for opening the switch 14. The time of operation of the relay is controlled by a brake magnet 8. The initial balancing of the systems is obtained by adjusting the air-gaps of the magnets, or by tappings on the magnet coils, or by the insertion of impedances in the magnet coil circuits. Lowpass filters 20, 22 screen the systems from higher harmonics. In a modification (not shown), the voltage-actuated system 3 is replaced by one which produces a torque proportional to V.I. sin #.
Patent GB-1504037-A (GB)
Title: Electrostatic development system with passive storage capacity
IPC: G03G15/08
Filed: 1975-05-01
Abstract: 1504037 Developing material supply system XEROX CORP 1 May 1975 [25 Sept 1974] 18222/75 Heading B2L  In a developing apparatus a reservoir receives some of the developer from a sump feeding to a photoconductor and the reservoir is responsive to a drop in the level of developer in the sump below a given point to replenish the sump. A cascade electrostatic apparatus may have a reservoir 22 feeding a sump 21 with developer which has not passed through hopper 17 and over photoconductor 13. Crossmixing is achieved by having a plurality of holes in the bottom of reservoir 22.
Patent GB-842921-A (GB)
Title: Improvements in and relating to re-inforced concrete structures
IPC: E04C5/06
Filed: 1957-06-11
Abstract: 842,921. Reinforcing strip. BOULTON, J., and BOULTON, J. June 9,1958 [June 11, 1957], No. 18344/57. Class 20(4) A reinforcing strip of the section shown is made out of sheet metal. The strip is particularly useful for reinforcing fireplace surrounds.
Patent GB-925396-A (GB)
Title: Improvements in or relating to electric wave filters
Inventor: PAINE JOSEPH
IPC: H01P1/207
Filed: 1959-05-29
Abstract: 925,396. Band-elimination filters. STANDARD TELEPHONES & CABLES Ltd. May 29, 1959, No. 18358/59. Addition to 845,957. Class 40 (8). An electric wave band-elimination filter for transmitting a wave having a frequency lying in a first frequency range and for substantially suppressing a wave having a frequency lying in a second frequency range lying above the first range, comprises a three-sectioned ridge waveguide 1, 2, 3 having ordinary rectangular waveguide terminations 7, 8 coupled to its ends 1, 3, the ridge waveguide transmitting waves of frequencies in both ranges, a principal tuning screw 13, Fig. 5, and first and second resistive elements 14, 15, Fig. 4, for absorbing energy reflected by the screw 13, coupled to the waveguide 2 at points on opposite sides of the screw, which are each spaced from the screw by an integral number of half wavelengths in the guide 2 at the mean frequency of the second frequency range. Each waveguide termination 7, 8 is provided with one or more auxiliary tuning screws 20, 21 and is coupled to the ridge waveguide by an adjustable metal probe 11, 12, Fig. 2, secured to the ridge 6 of the waveguide and passing through holes in the ridge waveguide and the waveguide termination. The waveguide section 2 is coupled to each of the resistive elements 14, 15, consisting of a rectangular waveguide stub terminated by a resistive element 27, by a rectangular slot 16, 17 with its axis normal to the axis of the waveguide 2 and resonant at the mean frequency of the second range. The waveguide stubs 14, 15 are of such dimensions as to have a cut-off frequency lying above the highest frequency of the first range. Each stub 14, 15 is provided with one or more auxiliary tuning screws 18, 19. The resistance of the resistive element 27 is equal to the characteristic impedance of the waveguide stub. The distance d 2  between the centre of the slot 16 and the inside surface of the wall 25 of the stub 14 is equal to half the wavelength in the stub. The distance between the probe 11, 12 and the adjacent closed end of the ridge guide 1, 3 is half the ridge guide wavelength at the mid-frequency of the first range. The position of the holes 22 in the terminations 7, 8 is such that the impedance presented at the open ends of the flanges 9, 10 should be equal to the characteristic impedance of the terminations. The tuning screw 13 can be replaced by three equally spaced screws and an additional slot and stub line as in the parent Specification.
Patent GB-274122-A (GB)
Title: Improvements in feeding materials into high pressure vessels
IPC: B01J3/02
Filed: 1927-07-11
Abstract: 274,122. I. G. Farbenindustrie Akt.- Ges. July 10, 1926, [Convention date]. Hydrogenation, destructive. - Thick or solid materials are charged into high-pressure reaction vessels used for the destructive hydrogenation of carbonaceous materials, by a displacing device located in a receptacle connected with the reaction vessel with the intervention of wide closing-means, the displacing device being adapted, during the charging operation, to remove substantially all of the gases from the receptacle. In the form shown, a reaction vessel f is connected to a receptacle a. Material supplied through a slide valve b' is charged through a slide valve d by a piston e after equalizing the 'pressures by means of a valved pipe c. As displacing device, a heavy viscous liquid on which the material to be charged floats may also be used.
Patent GB-785354-A (GB)
Title: Substituted pteridine derivatives
IPC: C07D475/04
Filed: 1954-01-29
Abstract: The invention comprises N-{p-[2-acylamino-4 - hydroxy - 6 - pteridylmethylene) imino] benzoyl} glutamic acids, their preparation by contacting a 2 - acylamino - 4 - hydroxy - 6 - formyl-pteridine with L( - )N-(p-amino-benzoyl) glutamic acid in a solvent, and their catalytic hydrogenation to produce the corresponding 2-acylaminopteroylglutamic acids.  The latter process may be combined with hydrolysis of the latter compound with an inorganic or organic acid or base to produce pteroylglutamic acid.  Solvents for the first of the above reactions, which may be effected under reflux, are lower alkanols and dioxan.  A preferred catalyst for the hydrogenation, which is conducted in a medium such as water, dioxan, glacial acetic acid, quinoline or a lower alcohol and preferably under superatmospheric pressure, is Raney nickel.  Examples describe the preparation and hydrogenation of N-{p-[(2-acetamido-4-hydroxy - 6 - pteridylmethylene) imino] benzoyl} glutamic acid.  Reference is also made to the preparation and hydrogenation of other similar Schiff's bases in which the acetamido group is replaced by a benzamido, butyramido or phenylacetamido group.  Specifications 785,353 and 785,355 also are referred to.
Patent GB-428898-A (GB)
Title: Improvements in or relating to cowling and the like for aircraft and other structures
IPC: F16B5/10
Filed: 1934-06-22
Abstract: 428,898. Fastenings. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and HAGGER, V., 4, The Fairway, East Acton, London. June 22, 1934, No. 18535. [Class 44] A device for securing a cowling to a structure such as an aircraft framework wherein a cotter h on a stud member carried by the cowling enters a non-circular socket c on the structure and is turned through a right angle to engage notches g on the edge of the socket, has the socket member formed with rubber cushions which project to engage the face of the cowling and prevent vibration when the stud member is engaged. The socket comprises an outer oval tube b inturned at its inner longer edges as shown at f and formed to present the notches g, and an inner tube a fitting closely against the tube b at its longer diameter but spaced at the sides to take rubber strips e. Tabs j on the tube a are bent to engage the inner edges of the tube b between the inturned parts f. The strips e are compressed by the cowling m when the cotter h engages the notches g. The tube b is spot welded to the structure d. Specifications 252,061 and 271,673, [both in Class 44], are referred to.
Patent GB-655130-A (GB)
Title: Improvements in vehicular steering gear
Inventor: WISE KENNETH STEVEN
IPC: B62D3/12
Filed: 1948-07-09
Abstract: 655,130. Motor vehicle steering gear. CAM GEARS, Ltd. July 9, 1948, No. 18561. [Class 79 (v) [Also in Group XXIV] In a rack and pinion steering gear the rack is supported by and mounted for angular movement, about an axis parallel to its length, in a sleeve which is itself mounted in a support for angular movement about an axis parallel and eccentric with respect to the first axis, means being provided to effect angular movement of the sleeve to maintain mesh between the rack and pinion. As shown a stub shaft 2 which is connected to the steering column carries the pinion 3 meshing with teeth 4 of the rack 5. The rack 5 is secured within a tube 10 which is connected by ball and socket connections 6, 7 to tie rods 8, 9 connected to the steering arms of the steerable wheels. The tube 10 is axially slidable and rotatably mounted eccentrically within the sleeve formed of bushes 11, 12 and a tube 13. The tube 13 is rotatably mounted at one end by a casing 3 and at the other in a bracket 15, the bracket 15 and casing 3 being interconnected by a tubular casing. Within the bracket 15 is mounted by means of a screwed plug 20 a spring 17 which bears tangentially by means of a tappet 18 on the bush 12, the leverage effect on the bush 12 of the spring 17 increasing as the spring unloads, and due to the eccentric mounting of the rack tube 10 the spring 17 tends to urge the rack 5 into deeper mesh with the pinion 2.
Patent GB-791942-A (GB)
Title: Lubricating device for gas meters
IPC: G01F15/00
Filed: 1954-06-24
Abstract: 791,942. Gas meters. MARSDEN, K. R. June 24, 1954 [July 7, 1953], No. 18596/54. Class 54. A dry gas meter has a removable lid 18, Fig. 1, a doubly inclined valve plate 1, pins 2 fastened to the valve plate adjacent to gas passages therethrough, gas valves 5 rotatably mounted on the pins, driving means 9, 10, 11 to oscillate the valves 5, a reducing gear 16 operatively connected with the driving means, a container 18a for lubricant, a valve 27 in the bottom of the container and means driven by the reducing gear for agitating the valve at predetermined intervals to permit lubricant to flow in the form of droplets on to the gas valves. This latter means consists of a disc 33 rotated by the reducing gear 16 and provided with a cam 20 to lift the valve 27 periodically and thus allow lubricant to flow by way of a helical groove 23 and a groove 19 in the disc 33 to a cup 34 provided with a member 25 which divides the flow of lubricant between two conduits 7. From these latter members the lubricant drips into cut-out portions of ledges 8 forming a channel with strips 3 to feed the lubricant to the sliding faces of the valves. The reducing gear 16 is driven through gearing 16a, 17 by a shaft 14 rotated by a crank and a connecting rod 12 coupled to the arm 10 which is oscillated by the measuring mechanism of the meter.
Patent GB-890150-A (GB)
Title: Condensation products which are fast to light, and their production
Inventor: GUTHKE FRIEDRICH WILHELM
IPC: C14C3/20
Filed: 1960-05-26
Abstract: Condensation products fast to light are obtained by reacting in a first stage one or more sulphonated phenols with urea and formaldehyde and reacting this condensate in a second stage with one or more phenols and formaldehyde, in the first stage 1 to 1,5 mols. of urea and 1,7 to 2,2 mols. of formaldehyde and in the second stage 0,5 to 3 mols. of phenol and 0,5 to 3 mols. of formaldehyde being used for each mol. of sulphonated phenol originally used.  Suitable phenols which may be used singly or in the form of technical mixtures in the first stage in sulphonated form and in the second stage in unsulphonated form include phenol itself, cresols, xylenols, halogenophenols and bis-phenols such as 4,41-dihydroxydiphenylpropane and 4,41-dihydroxydiphenylsulphone.  The products may be used as tanning substances, as auxilaries in dyeing leather or as dispersing agents, e.g. for dyestuffs.  Specification 478,280 is referred to.
Patent GB-376482-A (GB)
Title: Improvements in internal combustion engines
IPC: F16C3/06
Filed: 1931-06-27
Abstract: 376,482. Multicylinder engines. HAMMOND, W. R., 45, Stapleton Hall Road, Stroud Green, London. June 27, 1931, No. 18620. [Class 7 (ii).] Nine cylinders in line have their pistons driving on a nine-throw crank shaft, the angles between the cranks being 40‹. Two or more rows of such cylinders may be arranged radially about a single crank shaft, the cylinders in each plane being connected to one throw of the shaft.
Patent GB-528840-A (GB)
Title: Valve control device for installations for the ventilation of closed spaces
IPC: A62B13/00
Filed: 1939-06-27
Abstract: 528,840. Ventilating gas protection chambers; valves. GAMBAROTTA, V. June 27, 1939, No. 18676. Convention date, June 28, 1938. [Class 137] [Also in Group XXXIX] The different conduits leading to filters, regenerators, or fresh air supplies are controlled by valves subject to the action of common controlling means so that only one conduit can be kept open at any given time. A pipe 1 leads to the enclosure to be ventilated, and extends from a casing 4 divided into compartments the central one 5 communicating with the outside air through pipe 6. Compartment 8 is connected by pipe 9 with the outlets from filters 10, and compartment 13 connects by pipe 14 with the outlet from a regenerator 15, the inlet 7 of which opens into the space to be ventilated. The compartments 5, 8, 13 are closed by spring-pressed valves 16 each with a spindle 17 having a handle 19. When one valve is opened, a conical collar 21 is drawn through an opening 28 in a locking plate 22 which is moved against springs 25 until the plate is free to spring back over the base of the cone, thus retaining the valve in an opened position. When another valve is opened, movement of the spindle 17 produces a similar movement of the locking plate, with the result that 'the valve previously opened closes automatically under action of its spring 20, its collar 21 passing through the corresponding opening 28. By operating handle 30 attached to the plate 22, any valve in the opened position may be closed.
Patent GB-780284-A (GB)
Title: New methylol ethers and their production
IPC: C08F20/58
Filed: 1955-06-28
Abstract: The invention comprises methylol ethers of polymerizable or copolymerizable unsaturated carboxylic acid amides and urethanes, which ethers contain the grouping: <FORM:0780284/IV (a)/1> only once in the molecule and wherein R1 represents hydrogen or an alkyl radical and R2 represents an alkyl radical.  The compounds are prepared by etherifying the corresponding methylol compounds containing the grouping: <FORM:0780284/IV (a)/2> with an aliphatic alcohol R2OH in an acid medium, e.g. in presence of hydrochloric acid.  The examples describe the preparation of the compounds CH2 = CH-CONH-CH2-O-CH3, CH2 = C(CH3)-CONH-CH2-O-CH3 CH2 = CH-CH2-O-CONH-CH2-O-CH3 and CH3-CH = CH-CH = CH-CONH-CH2-O-CH3.
Patent GB-1311226-A (GB)
Title: Brakefluid reservoirs
IPC: B60T11/26
Filed: 1971-06-03
Abstract: 1311226 Master cylinder reservoirs DAIMLER-BENZ AG 3 June 1971 [5 June 1970] 18831/71 Heading F2F An hydraulic brake-fluid reservoir 1 comprises two chambers 2, 3 separated by a partition wall 13 but in communication through a tube 14 arranged horizontally at the minimum admissible fluid level so that if the reservoir is tilted when containing said minimum quantity of fluid the upper tube opening will project above the liquid surface to prevent draining of fluid from the upper chamber. A single charging connection has a screw closure 11 accommodating an indicator contact actuated by a float 12. In a modification the straight tube 14 is replaced by a U-tube.
Patent GB-881428-A (GB)
Title: Coupling for plastic pipe
IPC: F16L31/00
Filed: 1958-06-12
Abstract: 881,428. Pipe couplings. AMERCOAT CORPORATION. June 12, 1958 [Sept. 30, 1957], No. 18853/58. Classes 99(1) and 99(2). In a plastic pipe coupling, an annular coupling member 17, Fig. 1, surrounds at least one pipe end 10 to form an annular space therebetween for a plastic wedge-shaped ring 20, and an adhesive 25 is applied between the mating surfaces of the pipe and the ring and between the ring and an O-ring 16, which is axially spaced from the end faces of the pipe and ring. A coldcuring epoxy, polyurethane or phenolic resin may be used. The ring 20, Fig. 5, is provided with expansion slots 24 and grooves 26 which permit the escape of excess adhesive. In another embodiment, the pipe ends abut against an internal annular flange. A further embodiment, Fig. 3, has two coupling members 50, 58, each provided with a flange 62, 63 clamped by detachable members 64, 65, which enclose a fluid tight packing 67. In Fig. 4, the pipe 70 and coupling member 76 are composite members having outer layers 72, 77 of fibre glass reinforcing impregnated with a thermosetting resin e.g. an epoxy, polyester or phenolic composition and inner layers 73, 78 of rigid vinyl, the outer layer being stripped from the inner layer for a short distance at the tube ends and the coupling member being correspondingly stepped, the wedge members 20 being secured by adhesive. A further embodiment Fig. 6, has a steel coupling member 98 having an end face 92 flush with the pipe end. An annular liner 92, which may be of the same material as the pipe, covers the end face 92 and groove 94 and a gasket 93 is provided. The flange 100 may be part of a pipe, valve or a steel fitting.
Patent GB-257902-A (GB)
Title: An improved method of shutting off or throttling the flowing out of fluids, vapours or gases from bore or well tubes
IPC: E21B29/08
Filed: 1926-08-03
Abstract: 257,902. Akt.-Ges. f³r Tiefbohrtechnik und Maschinenbau vorm. Trauzl & Co., and M³ller, F. Sept. 5, 1925, [Convention date]. Fluids, regulating volume of flow of. - Fires in oil or gas wells are extinguished, or gushing oil wells are brought under control by compressing the well tubes by means controlled for a distance. In Fig. 1, a cylinder 10, with stuffing boxes 11, 12, is placed round a well casing. In Fig. 3, a frame-work 18 is arranged at a well head and carries hydraulic rams 14, 15 to compress the casings, the plunger heads being rounded ; one ram may be replaced by an abutment, or more than two rams may be used, and the plunger heads may be shaped so as to close the casing around a boring rod f as in Fig. 10. Each plunger head may have a point which engages the casing to prevent slipping The rams may be adjustably carried by the framework so that they mav be used for withdrawing the well casings. In Fig. 16, the plunger heads are provided with bevelled parts 46. 47 adapted to overlap. In Fig. 12, a portable appliance comprises an carrying at one end a pump 27 and screen 30 and elongated tube &c. 28 mounted on wheels and carrying at one end a pump 27 and screen 30 and at the other end a ram 29 ; the ram may have guides 38, 39, Fig. 13, to facilitate positioning of the apparatus, a pivoted abutment 31 being afterwards adjusted by a lever 35. The abutment may be fixed rigidly to the ram, the apparatus being then positioned by lateral movement. Devices at adjacent wells may be controlled from a central station and hydraulic accumulators may be provided and maintained loaded to compress the casings instantaneously when desired. In Fig. 17, a piston 49 is suspended by a rope 48 : in the case of fire, the rope is burnt through and the piston 49 falls and compresses water to operate the rams. The casings may also be compressed by worm screw or electrically operated devices. The Specification as open to inspection under Sect. 91 (3) (a) refers also to throttling or stopping the flow nf fluids through pipes other than well tubes. This subject-matter does not appear in the Specification as accepted.
Patent GB-690831-A (GB)
Title: An improved governor for prime movers
IPC: F02D1/00
Filed: 1950-08-02
Abstract: 690,831. Automatic speed control. BRYCE FUEL INJECTION, Ltd., GREEN, G. R., and GROSCHEL, E. R. Oct. 26, 1951 [Aug. 2, 1950], No. 19297/50. Drawings to Specification. Class 38 (iv). [Also in Group XXIX] The speed of a prime mover is controlled by an eddy current drag governor operating the engine throttle either directly or through an electric or fluid pressure servo link. Governor.-May comprise various arrangements, Figs. 1, 2, 4, 5, 6 (not shown), in which a .copper-cup lies in an annular gap between a multipolar magnet and its keeper which revolve together as a unit, the magnets being (a) inside, or (b) surrounding the keeper, or the keeper and cup may form a unit substantially fixed relative to the rotating magnet. Servo systems.-(i) The governor may operate a slide valve controlling a piston-type fluid pressure servomotor connected to the fuel pump lever, Fig. 3 (not shown), or (ii) it is stated that the governor may operate, e.g. a rheostat controlling a throttle - operating solenoid.
Patent GB-1064277-A (GB)
Title: Improvements in or relating to catalysts useful in fluorohydrocarbon production
IPC: B01J27/06
Filed: 1964-05-08
Abstract: 1,064,277. Hydrofluorination catalysts. DIAMOND ALKALI CO. May 8, 1964 [May 10, 1963], No. 19308/64. Heading B1E. [Also in Division C2] A hydrofluorination catalyst comprises fluosulphonic acid in which is dissolved the reaction product of fluorosulphonic acid and an anhydrous metal chloride. Specified metal chlorides are SnCl 4  TiCl 4  and SbCl 3 . No indication as to how FSO 3 H and the metalchloride interact is given.