baber/WOPTO huggingface dataset:
Patent GB-1168151-A (GB)
Title: The Production of Articles Moulded from Sand, Lime and Natural and/or Synthetic Fibre Materials
IPC: C04B28/20
Filed: 1966-12-02
Abstract: 1,168,151. Grinding; mixing. SVILUPPO SILICALCITE S.p.A. 2 Dec., 1966 [4 Dec., 1965], No. 54178/66. Headings B1C and B2A. [Also in Divisions Cl and F2] A process for making moulded articles from wet mixtures of sand, lime, natural and/or synthetic fibres, hardened by heating, in which the sand is impact treated in a counter-rotating cage type disintegrator having impact means arranged in concentric circles to give the sand a high activation of surface before the mixture is moulded. The mixture contains from 95 to 55% sand, 5 to 45% lime as Ca O from 2 to 25% fibres e.g. asbestos or glass fibre and from 25 to 75% of water, all percentages being by weight of the total weight of sand plus lime. As described, the material is moulded into pipes which are hardened by autoclaving at 12 atm for 12 hrs. During or before moulding additives such as fossil meal, bauxite, alumina and/or surfactants may be added. The disintegrator blade spacing increases from an inner circle of narrowest diameter to an outer circle of widest diameter.
Patent GB-1210097-A (GB)
Title: An automatic packaging machine
IPC: B65B7/16
Filed: 1967-11-29
Abstract: 1,210,097. Packaging apparatus. AZIONARIA COSTRUZIONI MACCHINE AUTOMATICHE S.p.A. 29 Nov., 1967 [3 Dec., 1966], No. 54373/67. Heading B8C. Automatic apparatus for erecting, filling and closing box-like cartons consisting of an inner flexible envelope and an external protective envelope with foldable end flaps, comprises a conveyer belt mechanism on a supporting frame, means for supplying, opening and transferring the cartons to the conveyer belt, and, successively arranged along the path of the conveyer belt, a unit including tensioning members for spreading said end of the inner envelope in the feed direction, means for heat sealing said one end of the inner envelope, and means for folding up the end flaps of the external envelope. In the arrangement shown, flattened cartons complete with an inner flexible envelope are removed from a magazine 11a 11b, 11c by withdrawal mechanism, consisting of suckers 14 on a pivotable upright 13, and are opened out by mechanism 12, 16 engaging flaps 4 and are transferred into spaces between blocks 8 on an endless belt 7. The blocks 8 have pivoted tangs 9 which are automatically forced out of slots 8b when the belt 7 assumes a curved path as it passes round associated guide pulleys. As each carton is carried in the direction of arrow A between a pair of blocks 8 the bottom flaps 4 are flattened outwards by shoe 20. The carton then passes to a station (Fig. 3, not shown) where a series of cam-operated pivoted fingers 24, 25 conveyed on an endless chain 22 engage the inside of the inner flexible envelope to spread it in the direction of travel so as to bring the opposing sides together. The cartons then pass to an assembly 37 (Fig. 4) where the end of the inner flexible envelope is fed between contacting pressure rollers 39, which also open outwards the flaps of the outer envelope, to a passage 40 between two heating plates 41 and subsequently between a pair of cooled pressure rollers 42 for thermo sealing the end of the inner envelope. The carton then passes to an adhesive applying device 45, 46, 47 which applies adhesive to the opened-out flaps of the outer envelope and subsequently past a member 48b which folds in one side flap 3 and then past an oscillating pawl (50, Fig. 5, not shown) which engages and folds up the leading end flap 2 then past a pair of co-operating slotted driven discoid members (72, 81, Figs. 5-10, not shown) which engage and fold up the trailing end flap 2, and then past a shaped twisted member (82, Fig. 5) which engages and folds up the remaining side flap 4. The carton, subsequently, is conveyed to filling and top closing mechanism.
Patent GB-1459195-A (GB)
Title: Gas flotation purification of liquids
IPC: B03D1/14
Filed: 1973-11-23
Abstract: 1459195 Purifying liquids PORTALS WATER TREATMENT Ltd 4 Feb 1975 [23 Nov 1973] 54477/73 Heading C1C [Also in Divisions B1-B2] The invention comprises a continuous absorptive bubble separation process, in which liquid, partially or totally saturated with gas under pressure, is injected into the lower portion of a cylindrical chamber into which a stream of liquid, from which suspended solid material is to be removed, enters tangentially to produce a swirling action together with the release of bubbles, the resultant centrifugal force on the liquid causing bubbles, together with particles of solid matter, to migrate towards the axis of rotation as they rise through the liquid, the bubbles and solid matter being discharged to waste from the central region of the upper surface of the liquid and the cleaned liquid being removed separately. The process is further described with reference to a Figure (not shown) and to the purification of water.
Patent GB-1445448-A (GB)
Title: Electronic apparatus including a timer
IPC: G04C23/00
Filed: 1973-11-23
Abstract: 1445448 Clock controlled radio receiver SONY CORP 23 Nov 1973 [24 Nov 1972] 54571/73 Heading G3T A radio receiver 55 Fig. 2 or similar electronic apparatus is rendered operative or inoperative by a time switch 57 Fig. 3 which is operable at predetermined times settable on a calibrated drum unit 10 and driven by a clock 9 or a timer. Over-ride of the time switch control of the radio is provided by a push button-switch 56a Fig. 3. When operated this changes the state of a bi-stable flip-flop F1 to render a transistor 68 conductive thus energizing a relay 71 contacts a, b of which engage and connect the radio to the supply, or to change the flip-flop Fl to its other state whereby the relay 71 and radio 55 are de-energized. If the radio has been switched ON by the manually operated switch 56a, it cannot be switched OFF by the time switch. A sleep timer for switching ON the radio for a predetermined time, e.g. 30 mins, is set by drawing out a rod 15 having a time scale thereon. When the rod automatically returns to its initial position or is forcibly pushed there, a sleep timer switch 58a renders the radio inoperative via the flip-flop F1 circuits and relay switch.
Patent GB-1151974-A (GB)
Title: Method of Heat Treating Edges of Steel Strip
Inventor: COLEMAN WILLIAM EMERSON
IPC: C21D1/40
Filed: 1967-12-04
Abstract: 1,151,974. Heat-treating steel strip edges. UNITED STATES STEEL CORP. Dec.4, 1967 [Dec.2, 1966], No.55115/67. Heading C7N. The edges of strip 24 obtained by slitting sheet steel 20 are heat-treated by applying current leads from a power supply 28 of frequency at least 10,000 c/s to points 30 adjacent opposing slit edges (32) emerging from the slitter 22 so that the heat-treating temperature is limited to the edge zones of the slit by passage of current along the slit edges and across the unslit vertex. For steel 0À001 - 0À007 inch thick, the current frequency is preferably selected e.g. 50, 000- 1, 000, 000 c/s to produce annealing temperatures of 950 - 1350‹F. to reduce the hardness of the edges to less than 60 Rockwell 30-T, suitable for forming the flanges of container bodies.
Patent GB-1358050-A (GB)
Title: Protecting transistors from overload
IPC: H03K4/64
Filed: 1971-12-01
Abstract: 1358050 Protecting transistors from overcurrent RCA CORPORATION 1 Dec 1971 [3 Dec 1970] 55710/71 Heading H3T A switching transistor 80 is protected from overcurrent due to short circuit of its collector load, by connecting its base emitter path in parallel with the base-emitter path of a further transistor 70 thermally coupled thereto and having a current limiting resistor in its collector circuit. An excessive rise in collector current in transistor 80 raises its base-emitter voltage sufficiently to cause transistor 70 to saturate and the base-emitter path of 70 will then prevent further rise in the base-emitter voltage of 80 and thus limit its collector current to a safe value. The area of the protecting transistor 70 may be less than that of the protected transistor 80. The invention is described as applied to a linetime base of the resonant return type and having a driver transistor 120 turned on and off by control transistors 90, 100, transistor 80 acting as a clamp to discharge the base of transistor 120 when it is switched off.
Patent GB-1419506-A (GB)
Title: Sheet feeding devices
IPC: B65H5/06
Filed: 1972-12-01
Abstract: 1419506 Feeding sheets RANK XEROX Ltd 1 Dec 1972 55722/72 Heading B8R Disclosure in the present Specification is to be found in Specification 1,419,510, but the claims are directed to the feed rollers 94, 102 which prevent double feed.
Patent GB-1270727-A (GB)
Title: A travelling shipboard gantry crane combined with an anchoring device
IPC: B63B27/16
Filed: 1969-11-14
Abstract: 1,270,727. Gantry cranes on ships. UNITED INDUSTRIAL SYNDICATE Inc. 14 Nov., 1969 [6 Dec., 1968], No. 55879/69. Heading B8B. [Also in Division E2] A travelling shipboard gantry crane A with four legs B running on rails 10 is combined with an anchoring device D which comprises an anchor tower 15 for each leg B supported on the deck of the ship C at the desired stowage location. All the legs B are anchored as described for the leg B shown. The tower 15 includes a vertical screw jack 16 supporting a tubular post 19 on a rotatable sleeve 18 threaded on shank 17. The shank 17 rests on a resilient pre-loading pad 32 and rotation of the sleeve 18 adjusts head 20 of the post 19 through a bearing 21 into engagement with an anchor receptacle 14 in an overhanging structure 13 on the outboard side of the crane, the crane being positioned by one of a pair of jacks 39, (40), Fig. 5 (not shown), pivotally attached to the tower 15 and engaged with a plate 43 on the leg B for this purpose. The head 20 is then clamped by a pair of wedge devices 22, (23), Fig. 3 (not shown) and the post 19 secured to the tower 15 by a yoke clamp assembly 28. The other of the pair of jacks 39, (40) is then connected to the plate 43 and both the jacks 39, (40) tightened down.
Patent GB-1443150-A (GB)
Title: Optical devices
IPC: G02B23/24
Filed: 1972-12-06
Abstract: 1443150 Endoscopes NATIONAL RESEARCH DEVELOPMENT CORP 6 March 1974 [6 Dec 1972] 56276/72 Heading G2J A periscope, e.g. endoscope, system comprises an objective forming an image e.g. 21, and a series if rod lenses 10 and associated imaging lens 16, Fig. 5 forming a sequence of intermediate images Z2, Z3, each rod lens carrying adjacent the position of an intermediate image at least one convergent field lens, 11, 13 Fig. 3, 14, Fig. 4 and 11, Fig. 5, of higher refractive index than that of the rod lenses for directing light from the preceding imaging lens into the aperture of the subsequent imaging lens. Field curvature in the field lenses is reduced and reversed astigmatism introduced to annul the imaging lens astigmatism by giving a concave surface 11 on the end of the rod lenses adjacent the image 12, Fig. 3, and cementing a converging, preferably plano-convex lens 13 of refractive index higher than that of rod 10. In order to reduce reflection light loss the two planoconvex lenses with air space forming a field lens are joined in Fig. 4 to form a single biconvex lens with the image formed at its center. The two meniscus lenses forming the imaging lens are further connected in Fig. 5 for coma and spherical and chromatic aberration by using one meniscus lens 16, an air space and a plane rod end 15, and arranging the rods symmetrically in the instrument so that the center rod 10 has two plane end-faces.
Patent GB-1374819-A (GB)
Title: Stabilization of epsilon caprolactone compounds
IPC: C07D315/00
Filed: 1971-12-06
Abstract: 1374819 Colour-stabilized lactones UNION CARBIDE CORP 6 Dec 1971 [7 Dee 1970] 56503/71 Heading C2C [Also in Division C3] Novel colour-stabilized compositions comprise one or more #-caprolaetone compounds and a trialkylphosphine, triarylphosphine, O- alkyldiarylphosphinite or trialkylphosphinite, said lactone compounds (i) being composed of carbon, hydrogen and oxygen atoms, said oxygen being in the form of a carboxylic ester group, (ii) being free from ethylenic and acetylenic unsaturation, and (iii) being unsubstituted or containing no more than 3 alkyl and/ or alkoxy substituents bonded to the carbon atoms of the ring nucleus and each organo moiety of the triorganophosphorus compound comprising not more than 18 carbon atoms. The alkyl and/or alkoxy substituents preferably contain not more than 4 carbon atoms. The colour-stabilized composition may additionally comprise an alkylated phenol (e.g. 2,6-ditertiarybutyl-4-methyl-phenol) and the concentrations of both the triorganophosphorus compound and the alkylated phenol are preferably 0À0001 to 1À5 weight per cent, based on the weight of the lactone compound(s). The triorganophosphorus compound ispreferably added to a freshly distilled lactone or mixture of lactones under an inert atmosphere (e.g. N 2 ), and with agitation, thereby to inhibit development of colour in the lactone(s). Specific examples describe the colour-stabilization of #-caprolactone with triphenylphosphine or O-n-octyldiphenyl-phosphinite each with and without 2,6-ditertiarybutyl-4-methylphenol and comparative experiments stabilize #-caprolactone with tri-n-decylphosphite or tetraphenylpolypropylene glycol diphosphite. or 2,6 - ditertiarybutyl - 4 - methylphenol alone. Other laetones specified are: #-methyl- # - caprolactone, γ - methyl - # - caprolactone, 8 - methyl - # - caprolactone, #-ethyl - #- caprolactone, γ,# - dimethyl - # - caprolactone, #,#,# - trimethyl - # - caprolactone, α - methyl- # - ethyl - # - caprolactone, γ - isopropyl - #- caprolactone, # - n - hexyl - # - caprolactone, # - methoxy - # - caprolactone, γ - ethoxy - #- caprolactone and # - methoxy - γ - ethoxy - #- caprolactone. Other triorganophosphorus colour stabilizers specified are: trinaphthylphosphine, tritolylphosphine, tri - n - butylphosphine, tri - n - octyl . phosphine, O - n - octylditolylphosphinite, O - n - propyldiphenylphosphinite and O-(2-ethylhexyl)-diphenylphosphinite.
Patent GB-1446482-A (GB)
Title: Imidazo 1,2-a-imidazoles imidazo 1,2-a-pyrimidines and pyrimido 1,2-a-pyrimidines and methods for their preparation
IPC: C07D239/14
Filed: 1973-12-06
Abstract: 1446482 lmidazo[1,2-a]imidazoles, imidazo- [1 ,2-α]pyrimidines and pyrimido[1,2-a]pyrimidines JANSSEN PHARMACEUTICA NV 6 Dec 1973 [8 Dec 1972] 56550/73 Heading C2C Novel compounds I in which n and m are 0 or 1, R is hydrogen or benzyl, R 1  is hydrogen or may be C 1-5  alkyl when n is 0 and Ar is phenyl C 1-5  alkylphenyl, halophenyl or dihalophenyl and their acid addition salts are prepared by (1) ring closing a compound II (2) ring closing a compound XVII by treatment with an alkali metal in a solvent to give compounds I (n=0; R 1 =H; R=H) (3) reacting a compound XIX with X-CH 2 -(CH 2 ) n -CH 2 -X in which X is hydroxy or a reactive ester thereof or (4) reacting a compound XXXIX with X-CH(Ar)-(CH 2 ) n -CH(R 1 )-X or (5) selectively hydrogenating a compound XXVI to form a compound I (n=0), (6) ring closing a compound XXXI in the presence of a base, (7) ring closing a compound XXXII in the presence of a condensing agent (8) reacting a compound XXXIII in which R 2  is alkyl, phenyl or tolyl with an acid to give a compound I (R=H; m=0), (9) ring closing a compound XXXVII to give a compound I (R=H; m=0) or (10) ring closing a compound XXXVIII Compounds I exist as stereoisomers and ()- 2,3,5,6 - tetrahydro - 3 - phenyl - 1H - imidazo- [1,2-a]imidazole is resolved using (+ )-tartaric acid. Novel compounds II are prepared by (1) reducing a compound VII and if desired debenzylating the resulting product by catalytic hydrogenation or (2) reacting a compound III-a or III-b with R-NH-CH(R 1 )-(CH 2 ) n -CH(OH)-Ar. Novel compounds VII are prepared by reacting compound V with halo-CH(R 1 )-(CH 2 ) n -CO-Ar in the presence of an acid scavenger. 2-Amino-1-(2- chloroethyl) - 5 - (o - chlorophenyl) - 2 - imidazoline hydrochloride (a compound of Formula XVII) is prepared by reacting o-chloro-α-nitrostyrene with 2-aminoethanol to give 2-[N-(ochloro - α - nitromethyl - benzyl)amino]ethanol hydrochloride the nitro group of which is reduced to amino and this compound cyclized by carbon disulphide and base to yield 2-(4-(o-chlorophenyl) - 2 - thio - 3 - imidazoline) - ethanol, the thio group of which is methylated using methyl iodide and the hydroxy group replaced by chlorine using thionyl chloride. Compounds I are CNS anti-depressants and may be administered parenterally.
Patent GB-1214489-A (GB)
Title: A high output level inverter circuit
IPC: H03K5/02
Filed: 1967-12-14
Abstract: 1,214,489. Transistor pulse circuits. HITACHI Ltd. 14 Dec., 1967 [23 Dec., 1966; 1 Feb., 1967], No. 56936/67. Heading H3T. Two transistors 7, 8, and a resistor 12 are connected in series across the supply E2 and either a third transistor 13 connected between T8 base and earth has its base connected to T7 base or else T7 has a second collector (20, Fig. 6a, not shown) connected to T8 base. When a positive going input to the base of a further transistor 6 causes the emitter voltage of T8 to fall with the collector voltage of T6, and at the same time causes T7 to conduct, a large current pulse which tends to flow when T7 and T8 are simultaneously conductive and the output voltage V3 is still positive relative to earth, is reduced by conduction of T13 which causes an additional current flow through the collector resistor 11 of T6. This additional current flow causes the voltage at T6 collector and T8 base to fall sufficiently quickly for no substantial current pulse to flow in the changeover period (c, Figs. 4 and 8, not shown). Diodes 9, 14 provide appropriate voltage level shifts, and a resistor (15, Fig. 5b, not shown) may be connected from the junction of the diodes 9, 14 to the supply E2; this holds up the voltage at T8 base until T13 conducts and thereby eliminates a partial drop in the output voltage V3 at the start of changeover (b, Figs. 3, 7, not shown) and gives a sharper switchover characteristic for T7, T8. Two of the double-collector circuits (Fig. 6a, not shown) are combined (Fig. 10, not shown) to constitute a NOR gate. In another embodiment (Fig. 11a, not shown) a multi-emitter transistor and emitter follower are combined with the two-collector transistor circuit (of Fig. 6a) to provide a NAND gate.
Patent GB-1275989-A (GB)
Title: A wheeled vehicle anti-skid braking system
IPC: B60T17/18
Filed: 1969-11-21
Abstract: 1275989 Fluid pressure brakes BENDIX CORP 21 Nov 1969 [20 Dec 1968] 57175/69 Heading F2F A fail safe circuit for a vehicle braking system in which the brakes pressure is controlled by pressure modulators responsive to a control signal generated by changing wheel velocity restores normal, manual braking should the pressure modulator or a control channel generating the control signal fail. The pressure modulators may be vacuum modulators having two chambers separated by a diaphragm which in a first position is urged by a biasing spring to move a displacement rod causing an hydraulic line valve to open and communicate a master cylinder with wheel cylinders, and upon admission of air into one chamber is moved to a second position to the communication. On closing a starter motor switch 10, starter 12 sends a signal to a solenoid 25 which is energized thereby closing relays 25a, 25b, current then passing from a source A<SP>+</SP> to energize a solenoid 38 of a three-way solenoid valve 38a to supply vacuum to the modulators. When brake switch 14 is depressed a voltage may also be applied to coil 25 by way of a time delay 16 and associated switch 18, or a diode 20. If a fault occurs in control channels 27-29 controlling the braking characteristics when the brake pedal is depressed so that a control signal is generated for an abnormally long time and its associated modulator no longer controls the pressure at its wheels then a signal passes through an OR gate 31, charges a capacitor 32 of which in combination with a resistor 34 comprises a time delay circuit, and after a predetermined time set by the circuit time constant the low voltage end of the relay coil 25, 25e rises sufficiently to de-energize the coil, open contact 25a and unlatch the relay. Contact 25b also opens to de-energize armature 38 so that air is  admitted to the modulator. If the modulated diaphragms move from the first position when the pedal has been depressed and the delay period of time delay 16 has elapsed, switches 14, 18 are open and any one of limit switches 21-23 opens to move its associated diaphragm to unlatch coil 25.
Patent GB-1328704-A (GB)
Title: Method for reducing sulphur dioxide
IPC: C01B17/04
Filed: 1970-12-02
Abstract: 1328704 Reduction of SO 2  ALLIED CHEMICAL CORP 2 Dec 1970 [9 Dec 1969] 57280/70 Heading C1A Sulphur dioxide is reduced to an equilibrium mixture comprising H 2 S, SO 2  and elemental sulphur by reaction on a bed of reduction catalyst with a reducing agent, in the presence of a gaseous hydrocarbon at a temperature of 1000- 2400‹ F., the reaction mixture being in contact with the catalyst for 0À25-1À2 seconds and passing through the bed at a superficial linear gas velocity of 0À33 to 20 ft./second. The preferred ratio of SO 2  : reducing agent is in the range 0À5 to 6À5 : 1, and the gaseous hydrocarbon is natural gas or a hydrocarbon having 1 to 4 carbon atoms. It is preferred to use methane in a ratio SO 2  : CH 4 ::1À33-2À0 : 1. Catalysts disclosed include bauxite, alumina, silica, CaS, V 2 O 5  and the preferred catalyst is calcium aluminate. The process may be carried out in the apparatus illustrated diagrammatically in the drawing and which is described in detail in Specification 1,328,703. The mixture comprising SO 2 , H 2 S and S is passed to a sulphur condenser and then to a Claus process wherein H 2 S and SO 2  are reacted to form additional sulphur.
Patent GB-1327646-A (GB)
Title: Roller bearings
IPC: F16C33/34
Filed: 1971-12-09
Abstract: 1327646 Bearings ROLLWAY BEARING CO Inc 9 Dec 1971 [29 March 1971] 57301/71 Heading F2A A substantially cylindrical roller 10 for a roller bearing is crowned at each end such that the diameter of each end face 14 is less than the maximum diameter D of the roller, the length of each crown portion 18 being less than 25% of the roller length, and each end face being centrally recessed to a depth of from 0À8 to 1À2 times the length of each crown portion. The cavity diameter D c  may be 55-60% of the maximum diameter D.
Patent GB-1213837-A (GB)
Title: Impregnating and coating composition for porous ceramic insulation
IPC: C09D183/04
Filed: 1968-12-03
Abstract: 1,213,837. Resistors. CORNING GLASS WORKS. 3 Dec., 1968 [8 Dec., 1967], No. 57333/68. Heading HIS. [Also in Division C3] Ceramic insulators are coated with a composition which comprises: (I) a partially hydrolysed tetra-alkyl silicate; (II) a silicone other than I; (III) suspended particles of a resin other than I and II; and (IV) a solvent I, e.g. partially hydrolysed tetraethyl silicate, may be present at 1-95% by wt. of the composition. II, which may be derived from a trifunctional silane, may be present at 1-90% by wt. III, e.g. polytetrafluoroethylene used as a 3% suspension in a carrier liquid such as toluene, may be present at 1-75% by wt. IV, e.g. isopropanol, may be present at 1-80% by wt. An exemplified coating composition comprises 8 parts by wt. of partially hydrolysed tetraethyl silicate, 5 parts by wt. of " S-45C " of Midland Industrial Finishers (Silicone), 6 parts by wt. of anhydrous isopropanol and 5 parts by wt. of a 2-3% suspension of polytetrafluoroethylene in toluene. In an example FP-4, 39K tin oxide resistors are coated with an insulating medium comprising alumina, silica, titania and a cobaltous aluminate pigment with a prehydrolysed tetraethyl orthosilicate binder which is heat cured to obtain a 15 mil. coating. This was impregnated with a further treatment with the above preferred composition.