baber/WOPTO huggingface dataset:
Patent GB-975085-A (GB)
Title: Gas fired heat exchanger apparatus
Inventor: STEVENS GORDON HENRY
IPC: F24H3/06
Filed: 1961-11-10
Abstract: 975,085. Air heating apparatus. CANADA FOUNDRIES & FORGINGS (U.K.) Ltd. Nov. 9, 1962 [Nov. 10, 1961], No. 40408/61. Headings F4W and F4S. A gas-fired air-heating apparatus comprises a heat exchanger 1, 2 partly enclosed in a housing 3 through which air to be heated flows, the heat exchanger 1, 2 containing a burner B supplied with combustion air through a lower port 14 and discharging combustion products through an upper port 15, both ports being connected to an open-ended duct D through flanged pipe extensions 17. The air to be heated is blown over the heat exchanger by a motor-driven fan 13 located in a compartment 11 below the heat exchanger. The burner B is mounted on a cover-plate 21 provided with a flame viewer orifice 22 and secured by screw studs to a front opening 20 extending through the housing 3 into the heat exchanger. Gas is supplied to the burner through a control unit 26 and a main pipe 25. A pilot jet 23 is continuously supplied with gas through a pipe 24.
Patent GB-1288005-A (GB)
IPC: A01N43/50
Filed: 1970-08-21
Abstract: 1288005 Herbicidal imidazolidinediones CHEVRON RESEARCH CO 21 Aug 1970 [22 Aug 1969 20 July 1970] 40501/70 Addition to 1247397 Heading C2C Novel imidazolidinediones of the general Formula I wherein Y is oxygen or sulphur; R<SP>1</SP> is C 1-10  aliphatic or cycloaliphatic optionally substituted by fluorine, chlorine, bromine or C 1-4  alkoxy, with the proviso that when Y is sulphur, R<SP>1</SP> is optionally substituted alkyl or cycloalkyl; R<SP>2</SP> is C 6-15  aryl optionally substituted by trifluoromethyl and/or up to two fluorine, chlorine, bromine, nitro or C 1-4  alkyl or alkoxy; and R<SP>3</SP> is acetyl or carbamoyl in which the nitrogen is monosubstituted by chloroacetyl or C 6-15  aryl substituted by 1 or 2 substituents selected from fluorine, chlorine,- bromine, trifluoromethyl, nitro or C 1-4  alkyl or alkoxy may be prepared by reacting an imidazolidine dione of the Formula II (a) with an isocyanate R<SP>5</SP>NCO wherein R<SP>5</SP> is the same as the monosubstitution for the carbamoyl group R<SP>3</SP> to produce the compound I in which R 3  is carbamoyl, or (b) by reaction of II with ketene to form the compound I in which R<SP>3</SP> is acetyl. The imidazolidine diones II may be prepared by reacting a 1-cyanoformamide or 1-cyanothioformamide R<SP>1</SP>-NH-CY-CN with an isocyanate R<SP>2</SP>CNO in the presence of a base catalyst. The 1-cyanoformamide or 1-cyanothioformamide may be prepared by reaction of an isocyanate or isothiocyanate R<SP>1</SP>NCY with KCN in the presence of acid. Herbicidal compositions of the compounds I with biologically inert carriers are effective against weed grasses and broadleaved weeds in post- and pre-emergence applications.
Patent GB-1517657-A (GB)
Title: Safety dowel
IPC: F16B31/02
Filed: 1976-10-01
Abstract: 1517657 Anchor bolts ROBERT BOSCH GmbH 1 Oct 1976 [24 Oct 1975] 40958/76 Heading F2H In an anchor bolt assembly comprising a threaded bolt 1 or 21 extending through a longitudinally slotted expansible sleeve 2 and having threaded thereon a frusto-conical expander nut 5 to radially expand the sleeve 2 when the bolt is tightened, the bolt 1 or 21 has a head 11 or 23 connected to the remainder of the bolt by a neck 12 which is designed to shear at a predetermined torque corresponding to the maximum gripping value of the anchor bolt in a receiving bore. In Fig. 1 the neck 12 connects the head 11 to a main head 10. A washer 9, a distance tube 8, and a frusto-conical sleeve 6 are interposed between the head 10 and the rear end of the sleeve 2. In Fig. 2, the head 10 is replaced by a hexagonal nut 22 threaded on the bolt 21, the neck (24) (Fig. 3, not shown) connecting the head 23 directly to the bolt shank. A spacing washer 25, preferably of polyamide 6.6 material, with a radial slot (26) (Fig. 4, not shown) lies between the head 23 and the nut 22.
Patent GB-1007387-A (GB)
Title: Wheel balancing device
IPC: F16F15/36
Filed: 1963-10-18
Abstract: 1,007,387. Wheel balancing device. C. C. PIERCE. Oct. 18, 1963 [Oct. 23, 1962; Oct. 10, 1962], No. 41202/63. Heading B7C. A device for compensating for and correcting inbalance in a rotatable wheel, above a critical speed, comprises a hollow annulus 16 formed from a synthetic plastic or metal tube having opposed ends, movable aggregate in the annulus, an elastic expansion joint connecting said opposed ends, and clips 25 for securing the annulus to a wheel rim. A collar 20 is welded at 19 to one end 17 of the tube forming the annulus 16, the collar having such a diameter that the end 17 fits snugly within it. The other end 18 of the tube telescopes within the collar 20. An elastic, flexible rubber sleeve 21 is fitted over the collar 20 and the opposed ends 17, 18 of the tube and bonded in place to provide a hermetic seal. The elastic sleeve 21 enables the end 18 ;to be moved relative to the collar 20 to vary the diameter of the annulus 16. The collar 20 may be formed integrally on the tube by expanding the end of the tube. The annulus 16 may be formed from a plurality of lengths of tube connected by such joints. The movable aggregate within the annulus 16 may be lead or steel dust or shot, and occupies a volume of 64 to 94% of the volume within the annulus and has a weight at least twice the maximum inbalance to be compensated. As the wheel rotates above its critical speed the aggregate moves away from the point or points of inbalanace so that its centre of gravity lies diametrically opposite the centre of gravity of the wheel inbalance.
Patent GB-1507270-A (GB)
Title: Recording head electrode
IPC: G01D15/06
Filed: 1976-10-06
Abstract: 1507270 Selective printing PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 6 Oct 1976 [9 Oct 1975] 41501/76 Heading B6F An electrode for a printing head which has several such electrodes arranged side by side and insulated one from another is made from thin metal and includes a fixing part 11 and a relatively elongate part 12. The elongate part is connected to the fixing part by a resilient tongue 123 forming one end of the part. The other end of the tongue is connected to a rigid arm 122 which is widened at its free end to form a recording tip 121. The fixing part 11 is so shaped that it can carry in a recess 113 a connector bar which lies transversely of the electrodes and carries electrical connection points for the supplies to the electrodes. There may be more than one recess, each to receive a connector bar. The fixing part may have holes 111, 112 or slots to receive mounting pins or strips which align the electrodes of the head.
Patent GB-1480566-A (GB)
Title: Threshing drum drive for combine-harvesters
IPC: A01F12/56
Filed: 1975-10-09
Abstract: 1480566 Change-speed gear CLAAS MASCHINENFABRIK GmbH Gebr 9 Oct 1975 [11 Oct 1974] 41525/75 Heading F2D [Also in Division H1] A change-speed gear for the threshing drum of a combine-harvester comprises two stepped pulleys 1, 2, each step being of multi-groove construction to receive a multiple Vee belt 4. A belt tensioning roller 17, which may be the same width as the pulleys or the width of the belt and laterally displaceable, can be moved into or out of contact with the belt by a hand operated bell crank lever 14, a compression spring 11 providing the necessary biasing force. Preferably the pulleys are stepped such that the same length of belt is required for each transmission ratio.
Patent GB-1441139-A (GB)
Title: Induction furnace for melt reduction
IPC: C21C5/52
Filed: 1973-09-06
Abstract: 1441139 Smelting by induction heating ALLMANNA SVENSKA ELEKTRISK A AB 6 Sept 1973 [7 Sept 1972] 41907/73 Heading C7D [Also in Division H5] An induction furnace for use in reduction of ores has around an upper part induction coils 11 to provide heat and stirring for a reaction zone 12, 13, a lower part that contains in use a bath of molten metal 17 and an intermediate region 16 being cooled (e.g. by water coils 15) and being provided with teeming openings 18. The intention is that by separating the bath 17 from the reaction zone 13, the inductive heating flux from coils 11 will not be deflected from the reaction zone 13. Slag in the cooled region 16 is not stirred by induction flux and molten metal separates and passes through to the bath. The lower end of the furnace may be inductively heated, e.g. by exchangeable channel type inductors 20, 21 or a surrounding induction coil (24), Fig. 2 (not shown). The metal/slag interface may be sensed to determine when to take metal via tap 22. Solidified slag 19 protects the furnace wall. Carbon monoxide not burned to provide furnace heat escapes via outlet 14. Charge material includes iron ore concentrate, coke dust and lime.
Patent GB-1484346-A (GB)
Title: Position controller
IPC: G05D3/12
Filed: 1975-02-28
Abstract: 1484346 Control of A.C. motors ALLEN WEST HOLDING CO Ltd 28 Feb 1975 [26 Sept 1974] 41923/74 Addition to 1399242 Heading H2J The position controller described in Specification 1,399,242 with reference to Fig. 7 thereof is modified by omitting the switch 7, controlling the output 00 through the switches 8a, 8b, 8c and interposing between the switch pairs 2a, 8a; 2b, 8b; 2c, 8c further changeover switches 8<SP>11</SP>a, 8<SP>11</SP>b, 8<SP>11</SP>c having control coils 8<SP>1</SP>a, 8<SP>1</SP>b, 8<SP>1</SP>c energized when switches 8a, 8b, 8c change to their Y positions to effect a corresponding change in the switches 8<SP>11</SP>a, 8<SP>11</SP>b, 8<SP>11</SP>c. This modification ensures that when for example the switches 8b, 8c are in their Y positions, having caused motor 3 to turn the valve of the central heating system to block the flow of hot water to the radiators of the respective rooms controlled by the thermostats actuating switches 8b, 8c, movement of the last switch 8a to its Y position de-energizes the output 00 to turn off the central heating boiler and/or pump and there is no further energization of motor 3. This overcomes a disadvantage of the prior controller, wherein operation of the last thermostat causes energization of the motor and movement of the valve followed by turn-off of the boiler and/or pump, with the consequent risk of a brief connection of the latter to a sub-circuit which should be off, a shot of hot water into this subcircuit and resultant thermo-syphon action between this circuit and the preceding subcircuit switched off. If switch 8a is not the last to change to position Y, the changeover of switch 8<SP>11</SP>a to its Y position, following such changeover of switch 8a, completes an energizing circuit for the motor 3 through switch 2a and switch 8b and/or 8c in the X position.
Patent GB-1419671-A (GB)
Title: Process for the production of unsaturated acids from corres pinding unsaturated aldehydes
IPC: C07C57/055
Filed: 1973-09-07
Abstract: 1419671 Unsaturated carboxylic acids MITSUBISHI PETROCHEMICAL CO Ltd 7 Sept 1973 [7 Sept 1972 5 Dec 1972 5 July 1973] 42093/73 Heading C2C [Also in Division B1] Unsaturated acids, e.g. acrylic and methacrylic acids, are made by the vapour phase oxidation of an unsaturated aldehyde at 200- 400 C. in the presence of a catalyst of the formula Mo 12 V 0À1-10 Fe 0À1-6 Si a X b O 36-126 , wherein a = 0-24, b = 0-3À0, a + b = 0À1-27 and X is Na, K, Rb, Zn, Al, In, Tl, Ti, Zr, Ge, Nb, Ta, Cr, Mn, Co and/or Ni, which catalyst may be supported. The reaction may be at 0À5-10 atm. using 0À2-3 moles O 2  per mole aldehyde, optionally in the presence of steam.
Patent GB-1183795-A (GB)
Title: Vibration Resistant Fastener.
IPC: F16B13/12
Filed: 1968-09-05
Abstract: 1,183,795. Nails and nail sockets. C. F. BAKER CO. Inc. 5 Sept., 1968 [14 Sept., 1967], No. 42232/68. Heading F2H. A nail 2 comprises a shank 12 having a portion provided with two sets of threads 10, 14. The nail 2 which may be provided with a slotted head 4 is used to secure a bracket 42 to a wall 38 by locating a plastics insert 20 in aligned apertures 40, 36 in the bracket and wall, and driving the nail 2 into a longitudinal bore (30) (Fig. 2, not shown) of the insert to urge apart insert portions 28 which anchor the insert in the apertures 40, 36. The set of threads 14 having the longer pitch may be formed by a groove 16 in the nail shank 12 and facilitate the driving of the nail into the insert whereas the other set of threads prevent withdrawal of the nail from the insert due to vibrations. The insert 20 may be provided with a head 22 having a recess (32) to receive the head 4 of the nail 2 and one or more slots 26 between the portions 28, the portions 28 being optionally provided with longitudinal grooves 34.
Patent GB-955379-A (GB)
Title: Ash disposal means
IPC: B65F1/10
Filed: 1962-11-09
Abstract: 955,379. Emptying ashpans. G. B. BUCK, and B. G. BUCK. Nov. 9, 1962, No. 42322/62. Heading A4A. An apparatus which enables an ashpan to be emptied into a dustbin whilst the latter is closed, comprises an open-ended drum G, Fig. 3, adapted to be located on the rim of the dustbin H, and to be closed by the dustbin lid H<SP>1</SP>, and a lidded container A, Fig 1, adapted to receive an ashpan B and having journals D, E adapted to engage in bearing slots J in the wall of the drum G. When the container is inverted by means of a cranked extension of one of the journals D, the two overlapping hinged parts of its lid open to an extent permitted by a detachable chain and the ash in the ashpan falls between inclined baffles I in the drum G into the dustbin. The slots J in the drum are covered by rubber flaps K.
Patent GB-1059328-A (GB)
Title: Improvements in or relating to means for discharging and/or loading containers for the storage or transport of goods or materials
Inventor: MURFITT RALPH
IPC: B60P1/00
Filed: 1962-11-09
Abstract: 1,059,328. Material discharging into vehicles. MURFITT (BULK TRANSPORTERS) Ltd., and ASSOCIATED BRITISH MALTSTERS Ltd. Nov. 8, 1963 [Nov. 9, 1962], No. 42446/62. Heading B8E. A movable bulkead 2 for discharging material or goods from a vehicle or other container 1 is moved longitudinally over the horizontal floor 5 by wheels 16 mounted on the bulkhead and engaging racks 17 extending lengthwise of the container. The wheels are driven through reduction gear-boxes 9, 12 by means, preferably an hydraulic motor 7, also mounted on the bulkhead. The pinions 16 and racks 17 may be replaced by sprockets or pulleys for co-operation with chains, ropes or cables respectively. The bulkhead is guided for movement by wheels 43, 42, Figs. 8, 9, adjustably mounted on brackets 45 to engage the floor and side walls respectively. Sealing strips 51 mounted on spring metal strips 50 prevent material passing the bulkhead. A hook 53 can engage pallets to load the vehicle with packaged goods. The vehicle container may be divided into compartments by providing an additional slave bulkhead adapted to be coupled, when required to move, to the main bulkhead by rods. The material is discharged through a shoot 3 and an opening 4 and may be conveyed away by a transversely running auger mounted in a trough. Alternatively an endless belt conveyer 100, Fig. 13, normally stowed under the floor in a housing 101 may be provided in conjunction with end doors 110 having attached floor plates to bridge the area between -the doors, conveyer and rear of the vehicle. The inclination of the conveyer 100 is adjustable by a winch 102 acting on an attachment cable 103. When the racks 17 are replaced by chains they are mounted in a channel covered by a movable flexible strip to prevent the material fouling the chain.
Patent GB-926895-A (GB)
Title: Liquid stabilisers for polymers and copolymers of vinyl chloride
IPC: C08L1/00
Filed: 1961-11-28
Abstract: Polymers and copolymers of vinyl chloride are stabilized with a liquid stabilizer comprising the barium, zinc and/or cadmium soaps of epoxydized straight chained or branched chained fatty acids alone or in combination with soaps of branched, short-chained aliphatic carboxylic acids or metal alkyl-phenolates, and a liquid organic solvent which has a plasticising and/or stabilizing effect on the said polymers or copolymers.  The preferred epoxy fatty acids are epoxy-stearic acid, diepoxystearic acid, hydroxy-epoxy-stearic acid and mixtures thereof.  The preferred solvents are phosphorous acid esters, e.g. triphenyl phosphite, phthalic acid esters with short chained alcohols, epoxy plasticisers, e.g. epoxy castor oil, esters of ricinolaic acid with aliphatic long chained alcohols and alkyl phenols.  In addition gel-breaking additives, e.g. alkanolamines, may be added.
Patent GB-1321125-A (GB)
Title: Laminated electro-magnet cores for electrical switch devices
IPC: H01F7/08
Filed: 1970-09-04
Abstract: 1321125 Electromagnet cores; electromagnetic switches SIEMENS AG 4 Sept 1970 [4 Sept 1969 28 Jan 1970 2 May 1970] 42587/70 Headings H1N and H1P A laminated U-core operating the contacts of a contactor comprises a pad of magnetizable laminµ 2 each having a stamped out elongate symmetrical transverse aperture 3 leaving remaining webs 4; the apertures registering to define a duct which can be filled with a ferromagnetic member of an, e.g. epoxy plastic mixed with ferromagnetic powder to produce the effect for airgap reducing remanence. The apertures may be mutually offset in alternate laminµ to define a tortuous duct which reduces the effective airgrip without insertion of additional magnetic material (Fig. 2, not shown). Registering apertures may contain a transverse perforated lamina of ferromagnetic material; the perforations being circular or elongated perpendicular to the direction of insertion (Figs. 3, 4, not shown), whereby eddy currents are discouraged. The lamina may be curved by flexure on insertion for retention in position, or may be fixed by adhesion or bonding. The apertures 3 may be Z-shaped (Fig. 5) or alternately N-  shaped and V-shaped with the angles registering (Fig. 6) to define transverse ducts while leaving connecting webs 4 intact. The necessary thickness of the side covering laminations may be reduced, or these may be rendered unnecessary, and the apertures may be obliquely disposed of the core axis.
Patent GB-939763-A (GB)
Title: Method of assembling a semi-conductor device
IPC: H01L23/04
Filed: 1960-12-12
Abstract: 939,763. Semi-conductor devices. CLEVITE CORPORATION. Dec. 12, 1960 [Dec. 18, 1959], No. 42634/60. Class 37. The two sub-assemblies of a semi-conductor device are assembled by positioning the first in a heater, a portion of which is used to limit the downward motion of the sub-assembly irrespective of irregularities on the bottom of the sub-assembly, positioning the second subassembly close to the first and energizing the heater to fuse together the glass portions of the sub-assemblies. The description is substantially the same as that in Specification 939,762. Specification 939,764 also is referred to.
Patent GB-1025748-A (GB)
Title: An improved device for filing sheets such as plans
IPC: B42F15/06
Filed: 1964-11-13
Abstract: 1,025,748. Filing papers. J. A. C. GUTIERREZ. Nov. 13, 1964 [Nov. 15, 1963], No. 46274/64. Heading B6E. Large sheets 10, such as drawings, are provided with filing apertures ] 1 which are engaged over filing members 9 supported on threads 8. Each member 9, Fig. 4, has an aperture through which a thread 8 is threaded, and has a short upright leg, and a longer lower leg. To engage a sheet 10, the lower leg is first passed through the aperture 11, as shown in Fig. 4. Each thread 8 is fixed at each end to an open ring 7 which is removably mounted on a post 1 or 2 in a suspension file wherein the post 1 is fixed, and the post 2 is adjustable relative to the post 1 by screws.
Patent GB-1142551-A (GB)
Title: Sheet feeding mechanism
IPC: G06K13/10
Filed: 1966-09-26
Abstract: 1,142,551. Delivering sheets. INTERNATIONAL BUSINESS MACHINES CORP. 26 Sept., 1966 [23 Oct., 1965], No. 42815/66. Heading B6B. A sheet feeding mechanism comprises two co-planar feeds, feeding sheets from opposite directions into the area between the feeds and ejecting means adapted to eject a sheet from the area in the plane of the sheet but in a direction perpendicular to the in-feed directions. As shown the sheets are in the form of cards fed from either bin 26 or bin 28 by electromagnetically released picker blades 52 to pairs feed rollers 30, 32, and 34, 36 which feed the cards to the area between. The cards are selectively fed from this area by the electromagnetic pivoting of one of the rollers 42. One of these causes the card to be fed off at right-angles by conveyers 20, 38 to a card sensing, punching or printing machine. The pairs of rollers 30, 32 form a stop for cards coming from bin 28, and rollers 34, 36 form stops for cards from bin 26. Rollers 30, 34 may be polished steel while rollers 32, 36 may be polyurethane. All four rollers may be driven and may all comprise polyurethane or polished steel.
Patent GB-1272326-A (GB)
Title: Francis type runner blade for a hydraulic machine
IPC: F03B3/12
Filed: 1969-08-28
Abstract: 1,272,326. Making Francis type runners. HITACHI Ltd. 28 Aug., 1969 [2 Sept., 1968], No. 42905/69. Heading B3A. [Also in Division F1] A runner blade 9 for a Francis type hydraulic machine, such as a turbine, is constructed by welding together several sections consisting of pressed steel flanks 10, 15 defining a space A, pressed steel trailing edge sections 12, 17 and a cast steel section 11. The section 17 has a stainless steel overlay 13 explosion welded thereto to reduce erosion caused by cavitation. Steel reinforcing bars may be welded between flanks 10, 15. Each blade 9 is welded to a crown ring 5 comprising a cast steel boss 6 to which are welded inner and outer steel plate ring segments 7, 8.
Patent GB-1401784-A (GB)
Title: Decolourisation process
IPC: B01J39/04
Filed: 1972-09-15
Abstract: 1401784 Decolorization process for dyewaste waters ROHM & HAAS CO 15 Sept 1972 [16 Sept 1971] 42926/72 Heading C1C [Also in Division C3] A process for separating dyestuff(s) from aqueous streams comprises contacting the aqueous stream with beads (0À1-3 mm. dia.) of macroreticular, cross-linked polymeric adsorbent, the resin being either a polymer of vinyl, divinyl or trivinyl benzenes or polymers of methacrylates with 0-90% of mono- or diethylenically unsaturated comonomers, the polymer having a porosity of at least 30%, a specific surface area of 100-1000 metres<SP>2</SP> (BET method) and a pore diameter of 20-200 Š; and then contacting the effluent therefrom with a macroreticular weak acid or base ion exchange resin. The stream may also be filtered or finally "polished" with active carbon; the adsorbers may be regenerated by exemplified methods. The dyes removed may be disperse, acid, direct, fibre reactive basic, sulphur, anionic, cationic, neutral, mordant or vat dyestuffs.
Patent GB-1163426-A (GB)
Title: Fluid Purification Device and method of producing same
IPC: B01J20/28
Filed: 1966-09-27
Abstract: 1,163,426. Adsorbent structure; ion exchange. KATA MFG. & FILTERING CO. 27 Sept., 1966 [28 Sept., 1965], No. 43097/66. Headings B1J and B1L. [Also in Division C1] Absorbent materials such as activated carbon, ion exchange leachs, manganese greensand of sawdust are formed into a matrix, similar to a loose bed in disposition of particles, by binding with a synthetic, organic polymer. There should be substantially no foam formation and the particles should have their entire surfaces freely exposed. This may be achieved by a pretreatment of the particles with a protectant. Exemplified polymers are polyurethanes, epoxy, phenolic and polyvinyl/ formal resins.