baber/WOPTO huggingface dataset:
Patent GB-1361801-A (GB)
Title: Modular seal unit and seal assembly for pipes
IPC: H02G3/22
Filed: 1971-09-13
Abstract: 1361801 Joint-making packing; pipe-connections THUNDERLINE CORP 13 Sept 1971 [15 Sept 1970] 42669/71 Headings F2B and F2G An annular shock-absorbing seal for sealing electrical conduits or pipes in walls of underground structures is formed by interconnected modular seal units each comprising a compressible elastomeric seal block 31, Fig. 1, pressure plates 36, 46 and a bolt 54 which extends through or into the pressure plates and seal block for compressing and expanding the latter into sealing engagement, releasable connector means 44 being provided which permit assembly of the modular seal units without displacement of the pressure plates or bolts from the blocks. The releasable connector means may be pins 44A which are a loose fit in apertured interfitting lugs of the blocks which may be made of rubber or neoprene. The pressure plates 36, 46 may be formed of a steel plate 37, 47 mounted within an electrical insulator 38, 48, the pressure plate 47 being provided with a tapped hole to receive the bolt. Instead of pins 44A, projections (241), Figs. 7 and 8 (not shown), may be provided on the central lug for engagement with recesses in the two lugs of the adjacent block and the end of the lug may be cylindrical for co-operating with a complementary socket (235). In Fig. 6 (not shown), each block is provided with a single offset lug at each end and is connected to the adjacent block by a pin (137); one of the blocks (131A) is of a different length to the others to obtain the required circumference. In Fig. 9, each block has an arcuate end 332 and the releasable connector means is formed of a rope or wire 355 which is passed through apertures in the blocks and joined at its ends by tying off or by crimping a sleeve into which the ends are inserted.
Patent GB-1116068-A (GB)
Title: Production of polyamide moldings
Inventor: DACHS KARL
IPC: B29C41/00
Filed: 1965-10-08
Abstract: A polyamide is produced by subjecting a lactam to activated anionic polymerization in a mould in the presence of an epoxide. Suitable epoxides are e.g. butylene-1:2-oxide, butadiene monoxide, cyclooctene oxide and phenyldeca-triene-1:4:8-monoxide, and they may contain neutral-reacting groups, e.g. -CN, -CO.O-, phenoxy, ether, thio-ether and amino groups and dibutylamino- or butylthio-groups.  Particularly suitable are compounds having 2-6 epoxy groups, e.g. <FORM:1116068/C3/1> wherein R is a C2- 14 hydrocarbon group, <FORM:1116068/C3/2> wherein R is a hydrocarbon group and R1 is an aliphati C1- 6 hydrocarbon group, <FORM:1116068/C3/3> wherein R is a hydrocarbon group and <FORM:1116068/C3/4> wherein R is a hydrocarbon group.  They are used in amounts of 0.05-30 wt. per cent of the lactam.  Polyepoxide precondensates still containing epoxy groups are also suitable.  Suitable lactams are caprolactam, enantholactam, capryllactam, capric lactam, laurolactam and C-substituted derivatives of these, e.g. 3-methylcaprolactam and 4-isopropylcaprolactam.  Suitable anionic catalysts are alkali and alkaline earth metals, hydrides and hydroxides of these, sodium or potassium alcoholates, and Grignard compounds, and also alkali or alkaline earth metal derivatives of lactams.  Amounts of 0.01-5% of the weight of lactam may be used of these.  Suitable activators are organic acid halides, anhydrides, esters, and nitriles and also isocyanates and carbodiimides and urea derivatives, e.g. pyrrolidone-N-(carboxylic acid)-hexamethylene diamide-1:6 and triphenylmethane-4:41:411 - triscarbamidocaprolactam, and N-substituted carbamic esters and bisisoalkyl-urethanes. These may amount to 0.05-10 wt. per cent of the lactam.  Conventional additives may be present, and expanding agents, e.g. cyclohexane, gasoline or gas-forming compounds, if it is desired to prepare a foam.  In the example e -caprolactam is polymerized in the presence of Na-e -caprolactam, pentaery-thritol triglycidyl ether, CaSO4. 1/2 H2O and a petroleum ether/gasoline mixture.  The mould is preferably heated to 80-200 DEG  C. before addition of the lactam melt.
Patent GB-1427207-A (GB)
Title: Temperature compensated liquid metal level indicator
IPC: G01F23/26
Filed: 1973-09-12
Abstract: 1427207 Electrophysical measurementliquid level MINE SAFETY APPLIANCES CO 12 Sept 1973 [16 Oct 1972] 42841/73 Heading G1N In an inductive liquid-metal-level detector having a measuring coil and a reference coil in a bridge circuit, the reference coil is surrounded by e.g. a copper or aluminium tube providing good heat transfer and also acting as a short-circuited turn so that the impedance of the reference coil is unaffected by liquid level. In Fig. 1 (not shown), the coils on their iron cores are mounted in stainless-steel sheaths extending side-by-side to the bottom of the tank. The reference coil only has a surrounding copper tube. However to improve heat conductivity the measuring coil may also be surrounded by a copper tube with vertical slits 40 as shown in section in Fig. 3 to avoid the shorting effect. MECHANICAL NULL POSITIONING FIG. 4B In an alternative embodiment the reference coil 46 in its copper shield 50 may be mounted above the measuring coil 48 and continuously positioned so that the liquid level 14 lies between the coils. The position rod 44 is driven by a nulling servomotor, (not shown). The copper shield may extend round both coils with slots in the lower part surrounding the measuring coil Fig. 5 (not shown).
Patent GB-1439201-A (GB)
Title: Revetment mattress and method of making same
IPC: E02B3/12
Filed: 1973-09-12
Abstract: 1439201 Revetments ZINKCON MAATSCHAPPIJ TOT UITVOERING VAN MODERNE ZINKCONSTRUCTIES BV 12 Sept 1973 [15 Sept 1972] 42897/73 Heading E1H [Also in Division D1] A revetment mat comprises a rectangular cloth 1 of synthetic material and a plurality of ballast-filled tubes 4 attached to the cloth in parallel by means of flaps 3. The tubes 4 which are preferably only partially-filled may have flaps 5 which are connected to flaps 3 by a stitched seam 6. Each flap 3 may be produced by forming a tube of larger diameter than is required and stitching a longitudinal seam to reduce the diameter to that required. The tubes have carrying loops 8. The flaps 3 may be formed by weaving a double cloth interwoven at intervals and then cutting down the top layer adjacent each interwoven portion.
Patent GB-1210129-A (GB)
Title: Improvements relating to excavator bucket sidecutters
Inventor: REID PHILIP ALEXANDER
IPC: E02F9/28
Filed: 1968-09-10
Abstract: 1,210,129. Excavator buckets. DOE BUCKETS Ltd. 6 Aug., 1969 [10 Sept., 1968], No. 42915/68. Heading E1F. An excavator bucket sidecutter 12 for use with two or more buckets having respectively different centre dispositions of fixing bolt locating holes in their side walls, is provided with bolt holes 23 suitably contoured to accommodate the different dispositions. Sidecutters for exterior and/or interior fitting and reversible sidecutters (Figs. 9 and 10, not shown) are described.
Patent GB-874106-A (GB)
Title: Elevated roads or bridges of steel-reinforced concrete
IPC: E01D2/04
Filed: 1959-12-17
Abstract: 874,106. Bridges. SILBERKUHL, W. J., KASTL, U., and HAEUSSLER, E. Dec. 17, 1959 [Dec. 19, 1958], No. 42989/59. Class 20(1) A bridge or elevated road comprises a hollow reinforced concrete beam 2 the steel wire reinforcements of which are arranged in two helical bands 4a, 4b of opposite hand, the bands extending below the oval hollow section in the centre of the span and .above the section in the region of the bridge supports 1. The deck is cantilevered at 3.
Patent GB-1002158-A (GB)
Title: Improvements relating to voltage regulating systems for generators
IPC: H02J7/24
Filed: 1961-12-01
Abstract: 1,002,158. Transistor switching circuits. ROBERT BOSCH G.m.b.H. Dec. 1, 1961 [Dec. 3, 1960], No. 42990/61. Heading H3T. [Also in Division G3] In an automatic voltage regulator in which a transistor in series with the field of a generator is switched by a second transistor in accordance with the output voltage of the generator, a bias is applied to the first transistor to ensure that it cuts off fully even under high temperature conditions. Transistor 31 in series with the field winding 15 is normally conductive, and a capacitor 38 is charged by the base current. Transistor 30 is rendered conductive by a Zener diode 33 when the voltage of the generator (which is across potential divider 32) is sufficiently large. Transistor 31 is thereby cut-off, and the voltage across capacitor 38 is added to the cut-off potential from transistor 30. As transistor 31 cuts off, a voltage is induced in the field winding 15 and this is fed back by resistor 40 and capacitor 41 to the base of transistor 30 to accelerate the transition. In a modification, Fig. 3 (not shown), transistor 31 is an emitter-follower controlling a further transistor. Specifications 896,577, 917,312 and 960,488 are referred to.
Patent GB-930575-A (GB)
Title: Improvements in or relating to the preservation of bread and similar bakery goods
IPC: A21D15/00
Filed: 1961-12-01
Abstract: To extend the storage time for white bread and similar bakery goods, amylopectin is incorporated in the flour or dough.  5-30% of amylopectin, calculated on the weight of the flour, may be used.
Patent GB-1076939-A (GB)
Title: Polymerisable amides
Inventor: GAZZARD EDWARD GEORGE
IPC: C08F24/00
Filed: 1964-10-22
Abstract: Compounds of formula <FORM:1076939/C3/1> wherein R0, R, R2 and R3 are H, halogen or hydrocarbyl and R1 is H or hydrocarbyl, are polymerized (optionally with a vinyl ether comonomer such as acrolein tetramer) in presence of a known vinyl ether polymerization catalyst, e.g. BF3-etherate.  Other vinyl ether comonomers and catalysts are listed. Polymerization may be effected under conditions such that a foam-forming gas, e.g. CFCl3, is generated.  Further exemplified ingredients are an oxyalkylenesiloxane, polypropylene glycol (mol. wt. 425) and diphenylol propane.ALSO:The invention comprises amides of formula <FORM:1076939/C2/1> wherein R DEG , R, R2 and R3 are H, halogen or hydrocarbyl, and R1 is H or hydrocarbyl. These amides are made by reacting together the appropriate amines and carboxylic acid esters.
Patent GB-862827-A (GB)
Title: Lubricating oil compositions
IPC: C08F8/00
Filed: 1959-12-21
Abstract: A lubricating oil additive consists of a polymer having a hydrocarbon backbone chain, a plurality of hydrocarbyl radicals containing at least 8 carbon atoms and a plurality of polar radicals comprising a mixture of hydroxyl, ester and thiophosphate groups.  The additive may be produced by reacting the polyalcohol polyesters prepared as described in Specification 754,773 with a phosphorus sulphide. Conversion of the thiophosphate radicals to the metal salts thereof subsequently may be effected.  In examples the polyalcohol polyesters are prepared by the partial hydrolysis of copolymers of C10 to C40 olefins with vinyl acetate or butyrate.  The additives may be admixed with paraffinic, naphthenic, asphaltic or mixed base crude oils which also may comprise castor oil, lard oil, polymerized olefins, alkylene glycol/alkylene oxide copolymers and/or silicone polymers.  Other conventional additives specified are metal dithiophosphates, metal organic sulphonates, metal thiocarbamates, amines, alkyl phenol, oil-soluble methacrylates, chlorinated paraffin wax/naphthalene condensates, esters, amides or amine salts of chloromethane phosphonic acids, and organic sulphides. Specification 793,608 also is referred to.
Patent GB-1099390-A (GB)
Title: Arrangement for supporting industrial machinery on a floor of an industrial plant by means of intermediate vibration-damping supporting elements
IPC: F16F1/36
Filed: 1965-10-13
Abstract: 1,099,390. Adjustable feet for furniture &c. SAREK A.S. Oct. 13, 1965 [Oct. 13, 1964; Aug. 6, 1965], No. 43378/65. Heading A4H. [Also in Division F2] A vibration damping foot 5 for machinery is secured in a recess 4 in the bottom face of the machinery frame and comprises a levelling screw 7 to which is releasably secured a rigid plate 11 and a rubber part 12. In a modification spaced feet are mounted in a groove in the frame and in another modification a body of an elastomer is snugly enclosed by the recess and has in its middle two vertical plates with a cavity between them, a horizontal spindle having opposite handed threads being in threaded engagement with the plates so that the body may be compressed laterally to provide vertical adjustment by consequent increase in vertical dimension.
Patent GB-1093873-A (GB)
Title: Moulding plate for pressing non-metallic corrugated sheets
Inventor: KRUMMENACHER MEDARD
IPC: B28B1/52
Filed: 1966-09-28
Abstract: 1,093,873. Moulding corrugated sheets. AMIANTUS A.G. Sept. 28, 1966, No. 43440/66. Heading B5A. A moulding plate, for use together with similar plates in pressing a stack of corrugated non- metallic sheets, consists of a corrugated plate, the thickness of which at the crests and troughs of the corrugations is greater than at the flanks between the corrugations. In this way corrugated sheets of uniform thickness are produced. The plate may comprise two corrugated metallic layers separated by a resin layer of non- uniform thickness, the metallic layers touching in the region of the flanks if desired. In alternative embodiments the plate may comprise a single metallic layer, on which is located a continuous resin layer of non-uniform thickness or a series of sickle-shaped discrete resin patches each located at the troughs and crests.
Patent GB-1263128-A (GB)
Title: Low voltage level interface circuit
Inventor: PFEIFER ARTHUR FRANCIS
IPC: H03K19/0944
Filed: 1969-09-02
Abstract: 1,263,128. Field effect transistor interface circuits. NORTH AMERICAN ROCKWELL CORP. 2 Sept., 1969 [13 Dec., 1968], No. 43468/69. Heading H3T. An interface circuit comprises a first field effect transistor 2 provided with a gate bias which exceeds the conduction threshold by an amount not larger than the input signal at 4 so that the transistor is switched by the signal and a second transistor connected to one output electrode of the first transistor and adapted to be switched at its base. As shown, the bias exceeds the threshold Vt by an amount 2Vd equal to two diode voltage drops so that a signal swing of 2Vd will effect switching. The output signal can be produced by pre-charging the output capacitance through transistor 8 during phase # 1  and conditionally discharging it through 2 in another phase or, if transistor 8 is of very much lower resistance than 2, transistor 8 may conduct while the input is applied. In Fig. 3 the bias voltage Vt+2Vd is produced by the threshold voltage across 46 together with the diode voltage drops across 41 and 39, the bias current being supplied by transistor 35. Transistor 41 reduces the current drawn by 46. In addition, an emitter follower 27 reduces the current through 25 and a further transistor 50 provides a recharging path for the circuit capacitance 15. A number of input transistors 25 may be connected to a common output and a common gate-bias supply (Fig. 4, not shown).
Patent GB-958153-A (GB)
Title: Cosmetics container device
IPC: B65D51/32
Filed: 1961-12-08
Abstract: 958,153. Cosmetic container stoppers. W. BRENNE. Dec. 8, 1961 [Dec. 19, 1960; Aug. 22, 1961], No. 44042/61. Heading B8T. The cap 3<SP>1</SP> of a cosmetic bottle 1<SP>1</SP>, e.g. for nail varnish, has an axial bore 7<SP>1</SP> receiving a removable casing 12 containing a lipstick 14. The casing may have a retraction knob 15, and may be secured within the screw cap by ribs 17 which engage in the slightly tapered bore 7<SP>1</SP>.
Patent GB-950919-A (GB)
Title: Temperature control of batteries
Inventor: FOSTER ROBERT THOMAS
IPC: H01H37/54
Filed: 1962-11-22
Abstract: 950,919. Batteries. JOSEPH LUCAS (INDUSTRIES) Ltd. Nov. 22, 1962, No. 44172/62. Heading H1B. [Also in Division H2] A conductor 18 having the same temperature characteristics as the electrolyte in a pair of batteries 16, 17 is connected to the negative terminals of the batteries so as to be in thermal contact with the batteries, the conductor 18 being provided with a recess 21 housing a thermally sensitive switch which cuts off the supply of alternating current provided to heat the battery electrolyte when the electrolyte reaches a predetermined temperature. The conductor 18 is formed of 10% antimonial lead.
Patent GB-918330-A (GB)
Title: Apparatus for conveying or handling vehicles and the like
Inventor: O'SULLIVAN EUGENE
IPC: B60P3/073
Filed: 1960-12-29
Abstract: 918,330. Vehicle handling platforms. NEW ERA MULTI-PARK HOLDINGS Ltd. Dec. 29, 1960, No. 44585/60. Class 78 (4). To retain a vehicle on a pallet or other loading platform, a pair of chocks movable upon the platform surface are driven by mechanism which moves them simultaneously in opposite directions. The invention is described with reference to the loading of vehicles from a road surface 9, Fig. 2, into garage cages by means of a movable platform 6. The chocks 8 are normally accommodated in recesses 7 in the platform but on rotation of pulley 24 they are pulled by the belt 19 out of the recesses and towards each other until they engage the vehicle wheels 15, when springs 23 in the belt take up further movement of the pulley. The pulley is driven by the initial movement of the platform away from the roadway 9 through the engagement of a gear-wheel 28 on the pulley shaft with a fixed rack 29 and the chocks are held in wheel-engaging position when the gear-wheel leaves the rack by the engagement with the gear teeth of a pivoted catch 31 (not shown) on the underside of the platform, the catch initially running on a guide 32 from which it pivots down into gear-wheel engaging position when it reaches the aligned ends of the rack 29 and guide 32. Specification 693,170 is referred to.
Patent GB-1220249-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L39/00
Filed: 1968-09-19
Abstract: 1,220,249. Pipe couplings. PLASTIC OMNIUM. 19 Sept., 1968 [21 Sept., 1967], No. 44695/68. Heading F2G. Connecting means for providing a detachable waterproof connection between a pipe 1 and a pipe 2 of smaller cross-section than the pipe 1, comprises an element 4 of resilient material, such as natural or synthetic rubber or a plastics material, having a peripheral portion engageable with the end of the pipe 1 and a member 3 adapted to form a snap fit with an external flange 8 provided on the pipe 1 to secure the element 4 against the end surface of the pipe. The element 4 comprises a continuous lip 5 adapted to engage the inner surface of the pipe 1, an aperture into which the pipe 2 can be inserted and an integrally formed collar 12 extending around the aperture, the collar being arranged to grip the pipe 2. As shown, the element is formed with collars 12, 12<SP>1</SP> each having internal ribs 14, and the member 3 has apertures which register with the collars and the peripheries of which are engaged by flanges 13, 13<SP>1</SP> of the collars; the member 3 has a rim 17 provided with internal spaced projections 9 which snap over the flange 8.
Patent GB-1487458-A (GB)
Title: Block
IPC: A63H33/04
Filed: 1975-10-31
Abstract: 1487458 Furniture frames and joints E J J DE SOUSA 31 Oct 1975 [21 Feb 1975] 45160/75 Heading A4H [Also in Divisions A6 and B6]  A block e.g. for use as furniture, i.e. tables, exhibiting stands, comprises two parts 1, 2 each with side faces 3, 4, 5 and end-faces 6, 7, the parts being joined end-to-end with the side faces 3 sideby-side, the side faces 3, 4 of each part being perpendicular to each other and straight, the face 5 of each part being curved or straight, Figs. 2, 1 (not shown) respectively, the side faces 3 being of the same length and the faces 4 extending from their associated faces 3 in the same direction but at opposite ends of the faces 3 and the face 5 of one part thus being inclined to that of the other part, both parts being the same length between the endfaces. As shown, the side faces 3, 4 of both parts are the same lengths. The length of each part may be half its width. Two blocks may be fitted together to form a rectangular paralelepiped, Fig. 3 (not shown). Each block may be moulded of hard plastics or each part may be made separately and joined by adhesive. Each block may be of one colour, each part differently coloured or each face differently coloured. The blocks may be small for use as a toy in the home or larger in school, eight blocks being suitable for a set.
Patent GB-1502757-A (GB)
Title: Compositions for inhibiting tobacco axillary buds
IPC: A01N25/32
Filed: 1976-11-01
Abstract: 1502757 Inhibitor for tobacco axillary buds KAO SOAP CO Ltd 1 Nov 1976 [21 Nov 1975] 45291/76 Heading C1B Tobacco axillary buds are inhibited with a mixture of (a) 6-hydroxy-3-(2H)-pyridazinone and/or a salt thereof, and (b) a polyoxyethylene sorbitan fatty acid ester having 10-40 ethoxy units/molecule and 1-3 aliphatic alkyl groups/- molecule, each such group having 8-22 carbon atoms. The total concentration of (a) is preferably 0À05-1À5 wt. per cent and of (b) 0À3-5À0 wt. per cent. The mixture may be dissolved or suspended in water.
Patent GB-1005439-A (GB)
Title: Removal of formic acid from aqueous formaldehyde solutions containing an alcohol and/or the formal thereof
Filed: 1961-12-20
Abstract: Formic acid is removed from an aqueous solution of formaldehyde also containing an alcohol having an atmospheric boiling point of at least 95 DEG  C., said alcohol being free from any substituent group other than a hydroxyl group, that is reactive with formaldehyde under the conditions of the process and on the formal of the alcohol, by contacting the solution with an alkaline earth oxide or hydroxide and filtering the solution.  The formaldehyde may be recovered by heating the solution thus obtained. The amount of water in the starting material may be 5 to 15% by weight of the total; the formaldehyde may be 15 to 40% by weight, the remainder being alcohol, such a solution being optionally obtained by mixing the constituent components.  The purified formaldehyde may be recovered from the solution after alkaline earth oxide/hydroxide addition and filtration, by distilling off water and pyrolyzing the hemiformal. Primary or secondary aliphatic or cycloaliphatic C5 to C10 alcohols of atmospheric boiling point at least 120 DEG  C. are preferred, cyclohexanal being especially suitable and described in the examples.  The contact between the alkaline earth metal oxide or hydroxide may be effected by adding the solid or a slurry thereof to the solution or by passage of the solution through a static bed of alkaline earth metal hydroxide.  U.S.A. Specification 2,848,500 is referred to.
Patent GB-1531006-A (GB)
Title: Transfer of heat primarily for air conditioning of vehicles
IPC: F25B1/00
Filed: 1975-11-04
Abstract: 1531006 Refrigerating M R BURGER 4 Nov 1975 [5 Nov 1974 23 May 1975] 45745/75 Heading F4H  In a refrigeration system for a motor vehicle having a compressor 10, a condenser 12, an expansion nozzle 16 and an evaporator 18, the working fluid comprises a mixture of a refrigerant having a boiling point within the range 0 to 60 C. at atmospheric pressure and air having a pressure initially that is prior to any use of the circuit of at least 0À05 atmospheres absolute. The system may also include a reservoir (not shown) and a countercurrent heat exchanger 14. The system is charged with refrigerant by closing off either the evaporator 18 by valves 22, 24 or the reservoir, leaving a valve 26 open, and by filling the respective piece of apparatus with liquid refrigerant. The air will be at 1 atmosphere absolute pressure but may if necessary be reduced to 0À05 atmospheres absolute. The valve 26 is then closed, valves 22, 24 being opened to allow refrigerant to flow out of the evaporator. In an alternative filling operation, with slow running of a rotary vane compressor 10, a mixture of liquid refrigerant and lubricating oil is introduced through the valve 26 into the apparatus. The refrigerant is preferably CFCl 3  or C 2 Cl 3 F 3 .