baber/WOPTO huggingface dataset:
Patent GB-1165191-A (GB)
Title: Improvements relating to Automatic Analysis
Inventor: AYERS CORA WINIFRED
IPC: G01N35/08
Filed: 1966-07-01
Abstract: 1,165,191. Automatic analysis incorporating steam distillation. BRITISH-AMERICAN TOBACCO CO. Ltd. 29 June, 1967 [1 July, 1966], No. 29705/66. Heading B1X. Solutions and extracts comprising mutually non-reactive liquids, particularly extracts of tobacco smoke, are continuously and automatically analysed by first separating the components of the mixture by steam distillation and continuously analysing the condensate, e.g. spectrophotometrically. Thus, cigarette smoke is extracted with aqueous HC1, and precise aliquots thereof are treated with NaOH. The segmented samples are passed down glass tube 1 (Fig. 2) adjacent to heater 5 and up tube 2 within heater 5, steam and the steam volatile fraction being thereafter passed by tube 9 (Fig. 3) to the base of column 11 down which alkali flows. Steam volatile vapours then pass through capillary 12 to absorbing chamber 13 where they are absorbed in water which enters by tube 14, the solution passing down through 17 being cooled in condenser 18, and then passed through capillary 20. The stream is then split into test and reference streams and treated with sintople reagents before being compared colorimetrically or spectrophotometrically in a pair of continuous flow cells (see Fig. 4, not shown).
Patent GB-655428-A (GB)
Title: Process for the preparation of lactones
Filed: 1947-11-07
Abstract: Monocyclic lactones having at least 12 chain carbon atoms in the lactone ring are made by cyclizing at a raised temperature and low pressure in the presence of an ester-interchange catalyst a diester AO(CH2)n-COOR2 with the formation of the lactone <FORM:0655428/IV (b)/1> and an ester AOR2 that is much more volatile, and therefore easily separable from, the lactone, n being an integer equal to at least 11, AO being an acid radical which when a carboxylic acid radical has a small number of carbon atoms and R2 is a lower alkyl radical containing at the most five carbon atoms.  The chain linking AO and COOR2 may contain one or more branched chains and include a double bonded or saturated alkyl radical and also contain one or more hetero-atoms in the straight or branched chain.  Acid radicals specified are derived from formic, acetic, boric, carbonic or sulphuric acid.  Catalysts mentioned are sodium derivatives of monovalent or polyvalent alcohols or phenols and acids such as sulphuric, phosphoric, carboxylic and aryl-sulphonic acids.  In examples: (1) methyl-16-acetyloxy-hexadecanoate is heated for 1 1/2 hours at 220-230 DEG  C. under 3 mms. Hg, with sodium methylate to give 1,16-hexadecanolide as distillate; (2) butyl-16-hydroxyhexadecanoate is converted into the boric ester with boric acid and the diester so obtained heated at 180-190 DEG  C. under 3 mms. Hg to give butyl borate as distillate, the temperature then being increased to 230-240 DEG  C., so that the lactone of (1) distils over; (3) methyl-14-hydroxy-tetradecanoate is converted into the boric ester by treatment with butyl borate, excess butyl borate added together with sodium butylate and the mixture heated at 230-240 DEG  C. under 3 mms. Hg to give 1,14-tetradecanolide as distillate; (4) methyl-12-hydroxy-dodecanoate is converted to the boric ester by treatment with boric acid and the diester heated at 220-230 DEG  C. under 3 mms. Hg with sodium methylate to yield 1,12-dodecanolide and a residue of the corresponding dilactone; (5) methyl - 1 - acetyloxy - 3 - oxa - 15 - tetradecacarbanoate is treated as (4) to give cyclo-1,14-dioxa-tetradeca-2-carbanone; (6) methyl-1-hydroxy - 4 - oxa - 16 - pentadecacarbanoate is converted to the boric ester by treatment with boric acid and the diester treated as in (4) to yield cyclo - 1,14 - dioxa - pentadeca - 2 - carbanone; and in (7) methyl-16-acetyloxy-7-hexadecenoate is heated at 220-250 DEG  C. and 3 mms. Hg with sodium methylate to yield 1,16-hexadecene-7-olide.
Patent GB-325253-A (GB)
Title: Improved infinitely-variable gearing
IPC: F16D31/06
Filed: 1928-10-16
Abstract: 325,253. Brown, J., and Scott, W. E. Oct. 16, 1928. Variable-speed gearing comprises a powertransmitting epicycle train 1<a>, 2, 5, Fig. 1, controlled by a fluid-pressure device which allows the gearing to overrun. The driving-shaft 1 of the variable gearing carries the sun gear 1<a>, and the driven shaft 4 the carrier 3 of the planets 2. The reaction member 5 of the train is rigid with a sleeve 5<1>. Fig. 3, to which is secured the rotor 7 of an hydraulic brake. The rotor 7 carries pivoted vanes 8, which are pressed outwards by pressure plungers 8<a> and as they sweep round, draw oil through a duct 11 and deliver it between two valves 21, 22. The valve 21 is adapted to yield under pressure so that the gearing as a whole automatically varies with the load on shaft 4. The valve 22 is opened at will to disconnect the drive, for example prior to shifting clutch 13 of reevrsing train 15. 16, 17 to ultimately driven shaft 18. Overrunning or freewheel action is obtained by the vanes 8 feathering to leave the rotor 7 free to turn back towards duct 11.
Patent GB-697988-A (GB)
Title: Improvements in and relating to apparatus having a reciprocated ram
IPC: B30B15/00
Filed: 1950-12-07
Abstract: 697,988. Hydraulic presses. HARE, Ltd., P. J., and HARE, P. J. Dec. 4, 1951 [Dec. 7, 1950], No. 30004/50. Class 69(ii) In an apparatus having a reciprocating ram, the ram is prevented from turning about its axis by being connected to a movable member in such a way that any tendency which the ram may have to rotate results in the application to said member of mutually balancing forces tending to move it oppositely. A crosshead 28 is secured to a press ram 26 and is provided with a pair of pins 30-to each of which is pivoted a link 40, the opposite end of which is pivoted on a crank pin 38 of a crank 34 secured to a shaft 32 rotatably mounted in the press column 18. The links 40 are formed as shrouds which encase the moving parts of the linkage. Springs 42 'are attached to the links 40 and to fixed points on the column to assist the return of the ram. In a modification the shaft with the cranks is secured to the ram 26 and the links are pivoted on pins provided on the column.
Patent GB-1482111-A (GB)
Title: Process for the treatment of a metal surface and a method of manufacturing dressed steel plate using the process
IPC: B05D5/10
Filed: 1974-07-05
Abstract: 1482111 Corrosion resistant films on steel SUMITOMO METAL INDUSTRIES Ltd and IGETA STEEL SHEET CO Ltd 5 July 1974 [24 July 1973] 30013/74 Heading B2E [Also in Divisions B5 and C7] Corrosion-resistant films are formed on steel surfaces by coating with a composition comprising 10-30% wt. of at least one of phosphoric acid, polyphosphoric acid, chromic acid or their salts, 5-35% wt of an organic macro moleular compound stable in an acid medium and a non aqueous volatile solvent. The coated steel is dried at 65-150‹C for 2-10 seconds. The organic compound may be polyvinyl butyral. resins and acryl latex and the solvent an alcohol or ketone. In an example the coating composition contains 10% polyvinyl butyral resin, 15% lead trimethylate, 5% zinc polyphosphate 7% lead chromate, 50% ethanol, 1% surface active agent and balance water.
Patent GB-900039-A (GB)
Title: Improvements in and relating to the stitching of materials
Inventor: BENNISON MICHAEL NEWSTEAD
IPC: D05B73/12
Filed: 1958-09-19
Abstract: 900,039. Sewing; sewing machines. CLARKSON (TEXTILES) Ltd. June 17, 1959 [Sept. 19, 1958], No. 30018/58. Class 112. Layers of material to be stitched together are temporarily clamped between plates adapted when closed to cause automatic fulling of at least one of the layers, each of said plates being provided with at least one slot for exposing material through which a sewing-machine needle is to pass, and the plates are positively guided on a work surface in predetermined relationship to the sewing-machine needle so that the latter will automatically stitch through the slots and secure the layers together with a required line or line of stitching. A work clamp, Figs. 2, 6, for use in fulling a pocket flap 15 and joining it to a lining 16 comprises three superposed plates 2, 3 and 4 connected together by aligned hinges 5 and 6. The outer plates 2 and 3 are formed with needle-passing slots 7 and 8 respectively which are aligned when the plates are folded together and which are in the form of the desired seam. Blocks 10 on plate 3 serve to locate the lining 16, positioned between plates 3 and 4, and enter registering openings 11 in plate 2. Plate 4 enters a recess 4a in plate 2 and carries a block 13 which enters an opening 14 in plate 2 to give a fulling effect to the flap 15 positioned between plates 2 and 4. Plate 3 has an underneath layer 12 of non-slip material to provide good control when the clamp is moved over the work-supporting surface 20 of a sewing machine. The presser foot is replaced by a foot 17 carrying a hollow spindle 18 which serves as a guide for the needle 20 and which journals a roller 9 engageable in the wider slot 7 which serves as a guideway therefor. A bush 9a, fixed to the workplate 20 in alignment with spindle 18, enters slot 8 and serves to support the work therein. The clamp is moved by the feed dogs which have frictional pieces secured thereto instead of the usual serrated edges. In a modification, Fig. 7, the slots 7, 8 are of equal width and angles 7a are fixed to plate 2 on either side of slot 7 to provide a guideway for roller 9. A clamp, Fig. 9, for use in sewing collars of different lengths has outer plates 28, 29 joined together by a hinge 30, and an intermediate plate 33 hinged to plate 29. The plates are divided and hinge 30 is adjustable to permit of longitudinal extension. Blocks 34 on plate 32 enter openings in plate 28 to provide a fulling effect in the upper layer. One half of plate 28 has extension guides 31 for the guide slot 7 therein, and the free edge of plate 28 is complementary to the inner edge of a location block 32 on plate 29.
Patent GB-748019-A (GB)
Title: Improvements in and relating to methods of stabilisation of speed controlled d.c. motors
Inventor: PAYNE KENNETH JACK
IPC: H02P7/288
Filed: 1952-11-27
Abstract: 748,019. Automatic speed control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 27, 1953 [Nov. 27, 1952], No. 30090/52. Class 38 (4). The invention relates to stabilizing the regulated speed of a D.C. motor, which is controlled by varying the motor field, and comprises obtaining a stabilizing control voltage either from an auxiliary winding on the motor pole, or from a transformer or capacitor connected to the field, Figs. 3, 4 (not shown). As shown, the speed regulator comprises a carbon pile R6 in the circuit of the motor field L2, having its operating coil energized by the rectified output of a frequency-sensitive (resonant) circuit C1, L7 fed from an alternator A driven by the motor. According to the invention an auxiliary coil L9 mounted on the motor pole is connected in series with the regulator coil to provide a transient opposing voltage. Alternatively the coil L9 may be connected to an auxiliary coil on the regulator. Where the alternator is supplying a load in addition to the frequency discriminator, its voltage may be controlled by a carbon pile regulator supplied with the rectified output voltage, and a rate-of-change component from a transformer connected across the alternator field, Fig. 2 (not shown).
Patent GB-371289-A (GB)
Title: Process for insulation of the cells in galvanic batteries
IPC: H01M50/133
Filed: 1931-10-31
Abstract: 371,289. Galvanic batteries. HRJE, A. B., 10, Frederiksbergsgatan, Malmo, Sweden. Oct. 31, 1931, No. 30202. Drawings to Specification. [Class 53.] Cells are encased in paper, fabric or other material which is coated on one or both sides with an insulating mass which may consist of bitumen, pitch, asphalt, &c. alone or mixed with oils, coal tar, &c. Guttapercha, wax or other materials may be added to give elasticity to the mixture and to render it more fusible.
Patent GB-243763-A (GB)
Title: Improvements in or relating to cooling chambers provided with refrigerating apparatus
IPC: F25D19/02
Filed: 1925-11-30
Abstract: 243,763. Platen-Munters Refrigerating System Aktiebolag. Dec. 1, 1924, [Convention date]. Refrigerators, domestic and like; cold accumulators.- An absorption refrigerating apparatus comprising a permanently closed system of pipes and vessels welded together, is arranged on and supported by a removable part of the wall of a refrigerator, in such a manner that when the wall part is placed in position the evaporator is inside and the other parts outside the wall. In the arrangement shown in Figs. 1 and 2, a metal plate 18 is fastened by nuts 19, 20 on pipes 12, 13, 14 connecting the evaporator 6 with the generator 4, absorber 5, and condenser 7 of apparatus such as that described in Specification 202,602, prior to the welding operation, and after the apparatus has been made integral it is mounted on a hinged wall section 2 in two parts, with the pipes embedded in notches in the meeting faces of the two parts. The plate 18 is secured at 22, 23 to a lining 21 of the section 2, the plate and lining forming the outer wall of a cold accumulator vessel 24 containing brine or glycerine solution cooled by the evaporator. The other wall 25 of the vessel 24 is connected at 26 in a fluid tight manner with the lining of the door section 2, and forms one of the supports for a shelf 32. The parts outside the chamber may be covered by an apertured casing 30. In a modification, the refrigerating-apparatus may be mounted on a vertically slidable panel of one wall of the chamber, the top opening through which the cooling vessel is inserted being closed by an insulated plug. In a further arrangement, shown in Fig. 5, the refrigerating apparatus is mounted at the top of the chamber, and in order to convey the cold from the evaporator 6, which in the system employed has to be substantially at the same level as the absorber and generator and therefore outside the chamber, the vessel 24 containing the brine is provided with an extension 40 depending into the chamber. The upper part of the brine vessel is surrounded by an insulating casing 43, preferably formed in two halves embracing the pipe connections. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following :- Ice-making, can or mould apparatus for.-The cold accumulator described' above with reference to Figs. 1 and 2 is provided with a rectangular pocket fitted with shelves for supporting moulds for ice-making. This subject-matter does not appear in the Specification as accepted.
Patent GB-766847-A (GB)
Title: Moving coil relay for switching circuits with low energising electric currents, particualrly for use in bridge circuits
IPC: H01H47/36
Filed: 1954-10-20
Abstract: 766,847. Automatic temperature control systems. UHER, E., [trading as UHER & CO., GES FUR APPARATEBAU]. Oct. 20, 1954 [Oct. 20, 1953], No. 30252/54. Class 38 (4). [Also in Group XXXVII] A system for preventing frosting of a windscreen 26 includes a moving coil relay 31 (see Group XXXVII) having a moving coil 2 which closes contacts 8, 14 or 9, 15 depending on the direction of its deflection, the contact pressure being augmented by a centre-tapped winding 3 energized upon the contact closure. The windscreen has a heating element 27 and a temperature-sensitive resistance 34 connected in one arm of a bridge 32, the coil 2 being connected across the bridge diagonal through a potentiometer 33. The element 27 is energized from a current source 30 through contact 28 of a main relay 29 operated by a winding 35 connected to contacts 14, 36. On bridge unbalance caused by too low a temperature, the contacts 8, 14 close energizing winding 35 to attract armature 37 and element 27 is energized, the armature being retained by a holding winding 38. At the upper temperature limit contacts 9, 15 close to energize a releasing winding 39 and open contact 28.
Patent GB-1439924-A (GB)
Title: Apparatus for changing the control function of an electrical or an electronic apparatus
IPC: H05B37/02
Filed: 1972-06-28
Abstract: 1439924 Automatic control R M BROWN AND C FENWICK 21 June 1973 [28 June 1972] 30334/72 Heading G3N An electronic apparatus for the control of power to a plurality of electromagnetic radiation devices is effected by selection of a control module, having a particular control function, from a plurality of control modules. As shown, six lamps 28 are energized through interference filters 29 by mainssupplied triacs 27, the conduction point of which is determined by firing circuits 25 which derive pulses from a comparison of a mains-frequency ramp signal, from a generator 26 with voltage-level signals from a mixing and master control unit 15. The unit 15 is responsive to a manual fade control unit 16 or through a multiple-connector 23, 24 to a module 17 providing control signals in response to an audio input 22. The module may cause the lamps to pulsate in accordance with different octaves of the audio-signal or, alternatively, respond to different instruments. It is stated that the module can effect control in accordance with a set programme. In a second embodiment, Fig. 4 (not shown) two control modules are connected to a group of master controls (33-36) and mixed. Selection circuits (37), (38) are arranged to respond to the highest output from the appropriate master control.
Patent GB-409038-A (GB)
Title: Improvements in glass furnaces
IPC: C03B5/18
Filed: 1932-10-31
Abstract: 409,038. Glass furnaces. FECHOZ, E., Gilly-sur-Isere, Savoie, France. Oct. 31, 1932, No. 30454. Convention date, Nov. 17, 1931. [Class 51 (ii).] In a glass-melting furnace the gathering chamber 5 through which the molten glass is circulated, has a restricted inlet constituted either by apertures in a grating 6, Fig. 1, or by an annular space 22 surrounding a disc 7, Fig. 5. The circulation of the glass through the supply channel 21, the chamber 5, and back to the furnace over the sill 4 is effected by a vertically reciprocated plunger 10 which depends into a cavity 9 and is operatively connected with a valve 18 adapted to close an opening 8<a> in the return channel for the glass. The rod 17 carrying the valve 18 is guided in a member 16 secured to the casing 11 of the plunger 10, and is fitted with a spring 20 serving to return the valve to its lowermost position as the plunger commences its downward stroke and thus ensure that the glass displaced from the cavity 9 is returned to the furnace. A modification is described in which the returning glass, instead of flowing over the sill 4, is led back to the furnace through channels disposed on each side thereof, The exposed bath in the chamber 5 is heated by a burner 35 which delivers into a refractory bell 27 mounted on a pivoted arm 29 so that it may be pushed aside by the arm 31 of the gathering machine. A buffer device is fitted to the arm 29 to receive the impact of the arm 31 and counterweights are provided to return the bell to operative position on withdrawal of the gathering machine. To ensure an adequate supply of heat to the forward part of the chamber 5, the burner 35 may be inclined, as shown, or a deflecting baffle 36 fitted inside the bell. Fig. 5 shows a further arrangement for heating the forward part of the chamber 5 comprising a flue 37 having, at its upper end, a refractory burner block 38, and, at its lower end, a waste gas outlet 39.
Patent GB-369617-A (GB)
Title: Improvements in chain gearing for the transmission of energy from one shaft to another
IPC: F16H7/06
Filed: 1930-10-14
Abstract: 369,617. Driving pumps. KJAER, V. A., 16, Hoyensgade, Copenhagen. Oct.' 14, 1930, No. 30678. [Class 7 (ii).] In chain gearing for driving a blower from the main shaft of the engine, the chain is protected against the detrimental effects of torsional vibration, set up in the driven element by irregularity in the rotation of the driving-shaft, by placing an elastic coupling in series with the chain. Fig. 2 shows a pair of blowers 2, 3 driven from a chain wheel 9 through couplings 10, 11 comprising springs 14 and parts 12, 13 which slip under excessive load. In a modification, the blowers 2, 3 force air into a vertical pipe 19 and branch pipes to the inlet valves of each cylinder, the compressed air being used only for scavenging and supercharging at the end of -the suction stroke.
Patent GB-761423-A (GB)
Title: Mixtures of synthetic elastomers and resinous aldehyde condensation products
IPC: C08L61/10
Filed: 1954-10-25
Abstract: A composition comprises (1) a rubber terpolymer of (a) 30-85 per cent of a butadiene, (b) 5-45 per cent of one or more acrylonitriles and/or acrylic or methacrylic acid esters the alcohol component of which has one to four carbon atoms, and (c) 0.5-20 per cent of an organic compound containing copolymerizable double bonds and also one or more aldehyde groups, keto groups, carboxylic acid groups or carbamide groups; and (2) a resinous aldehyde condensation product. Specified butadiene are butadiene, isoprene, dimethyl butadiene and chloroprene, specied acrylic derivatives are acrylonitrile, a  methyl ethyl or -chloro acrylonitrile, methyl methacrylate, butyl and isobutyl acrylate, specified copolymerizable double bonds are a -methyl and ethyl acrolein, vinyl methyl ketone, acrylic or a -methacrylic acid, maleic acid monobutyl ester or monododecyl ester, acrylamido, and methacrylamide, and specified aldehyde condensation products are the novalaks, resols, alkylated aromatic hydrocarbonaldehydes, urea-aldehydes, thiourea-aldehydes and melamine aldehydes.  The composition may be mixed with the usual vulcanizing agents and cured.
Patent GB-761634-A (GB)
Title: Improvements in or relating to photometers employing a filament lamp as a comparisonsource
IPC: G01J1/12
Filed: 1954-10-25
Abstract: 761,634. Supply systems depending on two sources. LAURENCE, R. F. May 5, 1955 [Oct. 25, 1954], No. 30726/54. Class 38 (4). In order to enable a photometer comparison filament lamp 10 to be fed with a constant current from a battery 11, the battery 11 which has a small internal resistance is charged by a battery 12 and a resistor 13 having a resistance greater than that of the battery 11 is inserted in the circuit.
Patent GB-406239-A (GB)
Title: Improvements relating to the production of coal gas for storage under high pressure
IPC: C10L3/00
Filed: 1933-11-06
Abstract: 406,239. Combustible gas mixtures. RASMUSSEN, C. O., 3, Vestergade, Copenhagen. Nov. 6, 1933, No. 30772. [Class 55 (ii).] Enriched coal gas evolved during the first stage of a distillation and having a calorific value of 675 B. Th. U. is carburetted, preferably with oil gas, and bottled under pressure.
Patent GB-359699-A (GB)
Title: Improvements in or in connection with means or arrangements for the discharge of coke ovens
IPC: C10B33/10
Filed: 1930-10-16
Abstract: 359,699. Coke discharging rams. WELLMAN SMITH OWEN ENGINEERING CORPORATION, Ltd. and WELLS, F. E., Victoria Station House, Victoria Street, London. Oct. 16, 1930, No. 31036. [Class 51 (ii).] A rack and pinion operated coke discharging ram is automatically stopped at the end of its stroke by disengaging the rack from the pinion. As shown a portion 27 of the rack is hinged so that it will lift out of engagement with the pinion 15 when the latter is rotating in a counterclockwise direction, but will fall into engagement again to take the drive when the direction of rotation is reversed. This device is used in addition to a limit switch for stopping the ram motor.