baber/WOPTO huggingface dataset:
Patent GB-1369646-A (GB)
Title: Preparation of 3-furoate esters
IPC: C07D317/30
Filed: 1971-10-12
Abstract: 1369646 Bisulphite addition products; 3- furoate esters CPC INTERNATIONAL Inc 12 Oct 1971 [22 Oct 1970] 47533/71 Heading C2C Bisulphite addition products are obtained by reacting a 4-(C 1-6  alkylene) ketal-2-formyl valeric acid ester with an aqueous solution of alkali metal bisulphite (e.g. NaHSO 3 ). The reaction is generally effected at ambient temperature (e.g. 20-50 C.). Preferred starting materials are C 1-6  alkyl esters and those valeric acid esters which contain an aryl group on the 5-carbon atom. 3-Furoate esters are obtained from these bisulphite addition products by cyclization using a strong mineral acid (e.g. H 2 SO 4  at 20-50 C.). The bisulphite addition product is preferably washed with toluene prior to the cyclization. The reactions are illustrated in the following pair of equations in which R is alkyl or phenyl: The examples describe the conversion of ethyl 2-formyl-4-ethylenedioxy-5-phenyl valerate to its sodium bisulphite addition product-sodium 1 - hydroxy - 2 - carbethoxy - 4 - ethylenedioxy- 5-phenyl pentane sulphonate-and the reaction of the latter with 90% H 2 SO 4  to form ethyl 5- benzyl-3-furoate. The 2-formyl starting material is itself obtained from ethyl 4-ethylenedioxy-5- phenyl valerate by reaction with NaOEt/ HCO 2 Et and acidification of the 2-sodiohydroxy-methylene intermediate.
Patent GB-1508349-A (GB)
Title: Lubrication of refrigeration systems
IPC: C10M171/00
Filed: 1975-11-19
Abstract: 1508349 Refrigerator lubricant MOBIL OIL CORP 19 Nov 1975 [29 Jan 1975] 47628/75 Headings C5F and C4X A lubricant for use in a compression-refrigerator comprises a minor proportion of a halogenated alkane refrigerant and a major proportion of a hydrogenated poly(C 6 -C 12  alkene). A preferred composition comprises 10-40 wt. per cent of chlorodifluoromethane and 60-90 wt. per cent of hydrogenated polyoctene and/or hydrogenated polydecene.
Patent GB-1390523-A (GB)
Title: Production of nitroparaffins
IPC: C07C201/14
Filed: 1972-10-16
Abstract: 1390523 Nitroparaffins SOC CHIMIQUE DE LA GRANDE PAROISSE 16 Oct 1972 [29 Oct 1971] 47651/72 Heading C2C Nitroparaffins are made by nitrating propane with nitrogen peroxide in the presence of oxygen introduced in the form of air at a pressure of 8 to 14 bars, the starting materials being preheated at the reaction pressure and being introduced into the reaction zone at 150-330 C., and the gaseous effluents from the reaction zone being subjected to a rapid cooling or quenching. The effluent gases from the cooling or quenching zone may be passed together with air to an oxidizing tower wherein nitric oxide is reconverted to nitrogen peroxide and the gases from the tower may be scrubbed with nitric acid which dissolves the nitrogen peroxide. The resulting nitric acid solution may be degasified and the nitric acid and nitrogen peroxide obtained recycled. The gases from the scrubbing operation may be further scrubbed with an alkaline solution and propane may be recovered from the resulting effluent gases. An example describes the nitration of propane to a mixture of nitromethane, nitroethane, 1-nitropropane and 2-nitropropane.
Patent GB-1123699-A (GB)
Title: Improvements in or relating to twist wrapping machines
Inventor: RUDMAN YAKOV BENIAMINOVICH
IPC: B65B11/14
Filed: 1966-10-28
Abstract: 1,123,699. Twist wrapping machines. UKRAINSKY NAUCHNO-ISSLEDOVATELSKY I KONSTRUKTORSKY INSTITUT PRODOVOLSTVENNOGO MASHINOSTROENIA. 28 Oct., 1966, No. 48440/66. Heading B8C. A twist wrapping machine includes a continuously rotating head having around its periphery, elements rotatable about axes tangential to the periphery and having slots to receive articles enclosed each in a tube of wrapping material, a pair of jaws being mounted on each side of each element for gripping the tube ends while the element rotates to form the twist. Sweets 4, cut from a rope 1 by a blade 3 on a screw feeder 2 or ejected from the pockets of a feed wheel, Fig. 2 (not shown), are advanced by a conveyer 8 on to a wrapper web 11, the latter being tubed about them by a channel 12 (see also Fig. 3 not shown). The forward end of the tube is drawn into the rotatable elements 16 on the wrapper head 17 by the leading one of the pairs of grippers 30 on either side of the elements. The trailing pair includes a knife 37 which severs the tube as the jaws close. The upper jaws are closed on the lower by a face cam-track 36 and followers 35, see also Fig. 4 (not shown). Each element 16 is rotatable in bearings 22 by engagement of gear teeth on its periphery with teeth on a fixed wheel 24 in a low ratio worm and wormwheel relationship. The wheel 24 has also over part of its periphery a key engaging a slot in the elements 16 to hold them against rotation during entry and discharge of the articles and wrappers. During twisting, the jaws are caused to approach each other by face cam track 42 and lever means 28, 29, 38, 39, 40. A further cam and lever means, Fig. 4 (not shown), causes fork arms 44 to eject the finished product.
Patent GB-1521730-A (GB)
Title: Sensitization of a silver halide photographic emulsion
IPC: G03C1/08
Filed: 1975-11-25
Abstract: 1521730 Silver halide emulsion sensitization FUJI PHOTO FILM CO Ltd 25 Nov 1975 [26 Nov 1974] 48461/75 Heading G2C A process of raising the sensitivity of a silver halide photographic emulsion comprises incorporating in a sulphur-sensitized silver halide emulsion which contains grains having a crystal form selected from octahedral, tetradecahedral spherical, plate, irregular spherical, irregular polyhydral and oblate forms whose average grain size does not exceed 0À5Ám, and wherein the silver halide contains 98À6 to 100 mole % of silver bromide, any remainder being silver iodide, at least one hydroxy-tetrazaindene compound of the Formulae (I) or (II) wherein R' and R<SP>2</SP> each represents a hydrogen atom, an alkyl group or an alkyl group substituted with one or two aryl groups, or an alkoxy, hydroxy, carbonyl or alkoxy carbonyl group; an aryl group or an aryl group substituted with one or more alkyl groups, one or more halogen atoms, one or more halogen atoms, one or more hydroxy groups, one or more alkoxy groups, one or more carboxy groups or one or more alkoxy carbonyl groups; and n represents 1 or 2. An average grain size not above 0À35Ám is preferred. Sensitization processes using noble metals, and selenium sensitization can be used in a combination with the sulphur sensitization. Hydroxytetrazaindenes are listed. The amount is suitably 0À001 to 0À5, preferably 0À01 to 0À2 mol per mol of silver halide.
Patent GB-1016689-A (GB)
Title: Improvements in or relating to fluid-actuated oscillators
IPC: B06B1/18
Filed: 1963-12-09
Abstract: 1,016,689. Fluid logic circuits. SOC. D'ELECTRO CHIMIE, D'ELECTRO-METALLURGIE ET DES ACIERIES ELECTRIQUES D'UGINE. Dec. 9, 1963, No. 48509/63. Heading G4B. A fluid - actuated oscillator comprises a valve which directs a power jet to one or other to two outputs in response to a control input jet, the control jet being a feedback from the output which is the inverse of the control jet. In Fig. 1 a power jet A passes through a vave 1 to an outlet S and branches through a flow restriction r 1  and a buffer chamber C 1  to a control input E, thus-after a short delayswitching the jet from A to an output O. As a result the pressure of control jet E disappears and the cycle repeats. The valve is described in Specification 1,016,688. In a modification (Fig. 5), three valves 51, 52, 53 are connected as shown so that the feedback is inverted three times. A threshold device 56 may be used to regenerate the feedback. In a further modification (Fig. 7), five valves are contained in a casing chamber 78 and a rotary pump 77 supplies a pressure jet A of oil from a well in the casing. The outputs at 0 1 -0 5  are allowed to run back into the well. Output pulses appear at S. The device may be used as an alternating volumetric pump. If the fluid is incompressible the chambers C 1 -C 7  have elastic walls, e.g. are constructed as bellows. A valve such as that shown in Fig. 4 may be used. This valve has a piston 34 mounted on a flexible diaphragm 35, which piston cooperates with a valve ball B31.
Patent GB-1164942-A (GB)
Title: Improvements in or relating to Electric Motor Construction.
IPC: H02K5/04
Filed: 1967-01-30
Abstract: 1,164,942. Casings for electric motors. CONTROLS CO. OF AMERICA. 30 Jan., 1967 [10 Feb., 1966; 27 July, 1966], No. 48514/68. Divided out of 1,164,941. Heading H2A. An electric motor has a casing provided by two complementary shell sections which are additionally provided with integral bearing supports at at least one end and has a resilient member provided between the bearing and supports. The two halves of the bearing support 72, 74 have part spherical inner surfaces to cooperate with bearing 64 and a tubular resilient member 206 is provided between the cooperating surfaces. The ends 214, 216 of the member may extend outwardly of the bearing to provide a shaft seal.
Patent GB-1063853-A (GB)
Title: Plug valves
IPC: F16K5/02
Filed: 1963-08-19
Abstract: 1,063,853. Valves. DURIRON CO. Inc. Aug. 19, 1963 [Aug. 20, 1962], No. 48529/66. Divided out of 1,063,852. Heading F2V. In a valve as described in Specification 1,063,852 the plug is surrounded by a liner 103, Fig. 1, the seals 130 being disposed between the liner and plug. The ports 96, 97 may be similarly lined if the body is of non-corrosion resistant material. In another form (Fig. 3, not shown) the cross-sectional shape of the ports changes from circular at the outer ends to an elongated outline at the inner ends; the inlet and outlet ports are of different shape. The through bore (166) is shaped to match the body ports. Means are provided to limit rotation of the plug to one direction from the open position so that upon closing the valve the outlet port is closed before the inlet port.  The body bore between the ports is formed with a number of indentations that lock the liner in place.  The liners are made of polyethylene resins or derivatives, e.g. fluorocarbon resins which may be filled with such materials as coke flour, asbestos, graphite, glass, clay, titanium dioxide, talc or metallic powders.
Patent GB-1055096-A (GB)
Title: Packing carton
IPC: B65D5/64
Filed: 1964-12-02
Abstract: 1,055,096. Cartons. L. MORITZ. Dec. 2. 1964 [Dec. 17, 1963], No. 489.35/64. Heading B8P. A carton has an internal bead at the top edge of its wall, beneath which the edges of a flexible transparent cover engage. The cover may have bent-off portions at its edges.
Patent GB-1122450-A (GB)
Title: Method of producing alkyl phosphites
Inventor: JENKER HERBERT
IPC: C07F9/142
Filed: 1966-11-01
Abstract: Mono- and di-alkyl phosphites or mixtures thereof are prepared by reacting an alkyl halide, which is defined as including cycloalkyl halides and derivatives substituted by ester, hydroxyl or cyano-groups, with phosphorous acid and an amount of amine equimolar with the resultant hydrogen halide.  Primary, secondary or tertiary alkyl halides may be used, the bromides being preferably employed. Preferred amines are tertiary amines and the reaction is preferably carried out in the presence of a solvent or diluent.  To produce dialkyl phosphites, the alkyl halide, phosphorous acid and amine are used in the molar ratio of 2:1:2. Mono-alkyl phosphites are obtained by using reduced quantities of alkyl halide and amine.
Patent GB-1481353-A (GB)
Title: Process for the conversion and recovery of distillable constituents from tyres
IPC: C10G1/10
Filed: 1975-02-06
Abstract: 1481353 Destructive distillation of tyres W SCHAFER 6 Feb 1975 [25 Feb 1974] Divided out of 1481352 49031/76 Heading C5E Tyres are thermally decomposed in the absence of oxygen and steam or carbon dioxide is passed through the hot carbon formed to produce water gas or reducer gas. The Figure illustrates an apparatus as claimed in Parent Specification in which tyres 13 are charged through an oil-bath 8 into a steel tube 1 and indirectly heated by a hot gas from a blower 24 which passes through the annular space between the tube and the insulating jacket 2. The heating gas leaves through a flue 4 and the gaseous and other volatile products of the process are removed through conduits 14 and 14a and passed to a condensation, rectification and distillation system 15, 16. Oxygen-containing gas can be supplied from nozzles 22 to partially burn the carbon product and residual volatiles to produce heat, which heats the carbonizationmelting zone by radiation and conduction, and hot gas which indirectly heats the carbonization tube 1. Steam or carbon dioxide is introduced through nozzles 23 to react with the hot carbon which can be at above 1000 ‹C.
Patent GB-1023485-A (GB)
Title: Milking plant
IPC: A01J5/04
Filed: 1963-12-12
Abstract: 1,023,485. Milking machines. ALFA-LAVAL A.B. Dec. 12, 1963 [Dec. 21, 1962], No. 49115/63. Heading A1M. A milk releaser 14 has a side wall formed as a flap valve 16 and is connected at 15 to a vacuum vessel 6 and vacuum line 7 and to a milk line 12, the connection 15 having a smaller diameter than the liquid inlet and the arrangement being such that suction is continuously applied at 15 and that liquid flows into the releaser until a level is reached such that the closing affect of atmospheric pressure on flap 16 is overcome. For washing purposes the milk line 12 is connected to a pulsator 22, outlet pipe 17 from the releaser is sealed and the teat cups 8 are immersed in washing liquid contained in tank 26. The liquid is sucked through pipeline 12 into the releaser and rises to constriction 30 so causing a rise in pressure in releaser 14 to atmospheric pressure thereby allowing flap valve 16 to open and washing liquid to discharge into tank 26. Some washing liquid may pass into vessel 6 but is prevented from reaching the pump 1 by float 31. During milking pipeline 12 is disconnected from pulsator 22 and closed by cap 20 and outlet 17 is connected to the first of a series of churns, the last churn being connected by a further pipeline 19 to the vacuum vessel.
Patent GB-1075952-A (GB)
Title: Microscopic capsules and methods of making them
Inventor: CLARK RICHARD CALDWELL
IPC: B01J13/10
Filed: 1962-12-31
Abstract: 1,075,952. Microcapsules. GELATINE & GLUE RESEARCH ASSOCIATION. Dec. 31, 1963 [Dec. 31, 1962; Oct. 10, 1963], Nos. 49183/62 and 40096/63. Heading B8C. Microcapsules are formed by causing to coacervate around a nucleus from aqueous solution, a material which contains not less than <SP>1</SP>/ 3 by weight of a polymeric amine which has been chemically modified to render it sufficiently hydrophobic to coacervate from aqueous solution by adjustment of pH. Suitable amines are zein, casein, albumin, soya beam protein, collagen glues, gelatine and peptides derived from these proteins which have been reacted with various organic sulphonyl chlorides, 2,4. dinitro-1-fluoro-benzene, phenyl isothiocyanate, benzoyl chloride, halogeno-s-triazine derivatives, halogeno pyrimidyl derivatives and ninhydrin. Preferably, reactive groups are introduced into the molecule by the reaction whereby cross-linking can occur either during or after coacervation so that hardened capsules are produced.
Patent GB-1117412-A (GB)
Title: Improvements relating to containers made of synthetic resinous material
IPC: B29C69/00
Filed: 1964-12-05
Abstract: 1,117,412. Plastics containers; container closures. CHARLES TENNANT & CO. Ltd., and J. D. L. DIXON. 24 Jan., 1966 [5 Dec., 1964], No. 49591/64. Headings B8P and B8T. [Also in Division B5] A container 10 and lid are integrally moulded from a thermoplastic material by a blow moulding, rotational casting or injection moulding method. A neck 14 is severed to separate the lid from the container and the lid may then be screwed on to the container by engaging lugs 18, 19. Tapered walls 10B enable containers to be nested whilst recesses 17 in the container base accommodate projections 16 in the lid to enable stacking of the containers. The containers may be made tamper proof by forming a bore through the lid and interengaging lugs to receive a wire seal.
Patent GB-1116756-A (GB)
Title: An improved turning device for slabs or ingots preceded or followed by a flame de-surfacing machine
IPC: B23K7/06
Filed: 1966-11-04
Abstract: 1,116,756. Flame de-surfacing; feeding slabs. SCHLOEMANN A.G. 4 Nov., 1966 [4 Nov., 1965], No. 49624/66. Headings B3M and B3V. A flame de-surfacing machine has a turning device 6 in the form of a rotary drum into which the slab 4 is fed by carriages 1, after one face and one edge have been de-surfaced by the device 5, and turned by the drum through 180 degrees and returned to the device 5 for further de-surfacing. The carriage 1 has struts 3 or rollers (3a), Fig. 4 (not shown) on to which the slab 4 is placed. The carriage is driven past the desurfacing device 5 into the drum 6 wherein clamping devices 18, 26 grip the slab as it is raised by the table 12 on the carriage. The table 12 is lowered and the carriage moved out of the drum so that the drum can be rotated through 180 degrees on roller pedestals 16. The carriage is moved back into the drum, the table 12 is raised under the slab and the clamping means released. The carriage 1 then conveys the slab past the de-surfacing means. If desired two carriages 1, 1a may be used. The clamping means 18, 26 are preferably operated by worms 26 and worm wheels 26a, but hydraulic means may be used.
Patent GB-1223267-A (GB)
Title: Improvements in or relating to film drive control arrangements
Inventor: BURLONG PETER ROY
IPC: H01L23/488
Filed: 1968-10-21
Abstract: 1,223,267. Selective signalling. MARCONI CO. Ltd. 21 Aug., 1969 [21 Oct., 1968], No. 49801/68. Heading G4H. Gear coupled two-phase resolvers 3, 4, 5 are controlled sequentially by coarse, medium, and fine signals from a computer, not shown, to position a film strip 1, forming part of a navigation display system. As described, digital coarse, medium, and fine signals C, N, F are fed sequentially under the control of a distributer 20, 21, 22 to a digital-to-analogue converter 13 which produces sine and cosine signals for the resolver. When the error signal from the coarse resolver, which passes via a diode 24 to a threshold circuit 28, has fallen below the threshold level, the distributer advances to its next stage so that the medium signal exercises control. When the medium error is sufficiently low the distributer 20, 21, 22 advances to its last stage so that the fine signal exercises control. When this occurs an electric clutchcontrolled gear 8 is caused to introduce a reduction ratio of 1:150 between the drive motor 2 and the member being controlled.
Patent GB-1175950-A (GB)
Title: Improvements relating to ploughs.
IPC: A01B3/46
Filed: 1968-10-22
Abstract: 1,175,950. Plough. DEERE & CO. 22 Oct., 1968 [23 Oct., 1967], No. 50114/68. Heading A1B. A support wheel 110 of a plough is vertically adjustable via hydraulic cylinder 118, pivots 126, 130 and arm 132 to positions, defined by stop means acting on the arm 131, for transport, 'opening up', the normal working of the plough. The normal working of the plough. The normal working position of the wheel is determined by stop 316 (Fig. 6) pivoted on mounting bracket 301 attached to the main frame 22, 316 is pivoted to a strap 328 such that pulling rope 336 pivots stop 316, against the spring bias means 320 to an inoperative position whereby arm 131 can move up to adjustable stop 306 providing for the 'opening up' position. Stop 316 may be automatically retained in the inoperative position by latch means provided for the lower end of strap 328 (Fig 4.). As 316 is retracted a latch tongue 340 moves outwardly of aperture 352 until the aperture engages a notch 366. and the rope 154 can be released. This latch is automatically released on downward movement of the arm 131 engaging a trigger 342 which acts via abutment 380 on abutment 382 of tongue 340 lifting notch 366, against spring means, clear of aperture 352 and allowing spring 320 to place stop 316 in its operative position.
Patent GB-504457-A (GB)
Abstract: 504,457. Calculating-apparatus. FISHBURN, J. E. Oct. 20, 1937, No. 28519. [Class 106 (i)] In a machine of the multiple bank type for adding together items of currency or measure, at least one order is related to an adjacent order other than on a decimal basis and is accommodated by a pair of figure-bearing wheels one of which (A) Fig. 1, is arranged to set up on the other (B) by the transfer operation a number greater than one, the number visible on the latter wheel added to the number visible on the former wheel representing the numerical value of the said order. The machine described is adapted for Indian currency ; 12 pice= 1 anna; 16 annas =1 rupee. In the first key bank or " pice line," the first three keys co-operate with a driving lever 19, Fig..2, pivoted at 26 and connected by a short link 37 to a rack 16 pivotally connected to a member 31 pivoted at 30 and connected to lever 19 by a spring 36. Depression of a key, brings the rack into engagement with the totalizer pinion 17 which then rotates until a lug (33, 34 or 35) on the member 31 engages the shoulder 24 of the depressed key stem. The last two keys cooperate with a lever 26 pivoted to lever 19 at 25 and fulcrumed at 29. Although there are only four keys in the " first annas line," and only one in the "second annas line" the differential mechanism is substantially the same. Tranfer mechanism.-A member 42, Fig. 11, fixed to the lower totalizer pinion, is arranged to rock a pawl 45 which engages a lug 52 on a transfer pawl 50 and disengages the latter from the higher pinion 17. Meanwhile, the arm 46 rocks lever 49 and also the short arm C supporting the transfer pawl, against the action of a spring 48, so that when the lever 49 snaps over the arm 46 the transfer pawl 50 rotates the higher pinion 17. A duplex lever pivoted at 57 and having an arm 56 engaging the driving lever of the higher key bank, has an arm 55 which rocks to latch the lever 49 and therefore prevent transfer whilst a key in the higher bank is depressed. Overthrow of the pinion during transfer is prevented by the engagement of the lower end of the pawl 50 with the lower end of the rack 16. The second annas wheel shows " 0 " and " 8 " alternately and therefore transfer occurs every other step. In this case, a star-wheel 53, Fig. 8, replaces the member 42. Zeroizing mechanism.-Comprises, toothed sectors 60, Fig. 3, which co-operate with starwheels 59 fixed to the totalizer pinions 17.
Patent GB-1131259-A (GB)
Title: Process for the polymerization of dienes
IPC: C08F136/06
Filed: 1965-11-26
Abstract: 1,131,259. Polymerizing dienes. SNAM S.p.A. 26 Nov., 1965 [3 Feb., 1964], No. 50452/65. Heading C3P. Polymers of conjugated dienes are made by polymerizing at least one conjugated diene in the presence of a compound of a transition metal of a Group IV to Group VIII of the Periodic System, and a linear aluminium iminic polymer having repeating units of the general formula wherein R is an alkyl, aryl, or cycloalkyl group. Specified dienes are butadiene, isoprene, 1,3- pentadiene, 1,3-hexadiene, dimethyl butadiene, and phenyl butadiene. The metal compound may be titanium tetrachloride, tetrabromide, tetraiodide, cobalt chloride, cobalt acetylacetonate, manganese chloride, or nickel chloride. Specified dienes are butadiene, isoprene, 1,3-pentadiene, 1,3-hexadiene, dimethyl-butadiene, and phenyl-butadiene. The exemplified aluminium polymers are when R is ethyl, n-butyl and phenyl. The polymerization is effected in a hydrocarbon diluent. The structure of the polymer units are given in the examples.