baber/WOPTO huggingface dataset:
Patent GB-1109422-A (GB)
Title: Method of and apparatus for chemical analysis
Inventor: PRIESTLEY PHILIP THORPE
IPC: G01N25/48
Filed: 1964-01-17
Abstract: 1,109,422. Determining the concentration of a compound in a liquid. KODAK Ltd. 20 April, 1965 [17 Jan., 1964], No. 2171/64. Heading BIX. [Also in Division G1] To determine the concentration of a first chemical compound in a liquid, a stream is formed from the first liquid and from a second compound with which the first compound reacts exothermally or endothermally, the difference in temperature between the stream at a point wherein the compounds have not reacted and at a point downstream where the compounds have been completely mixed and at least some of the first compound has reacted is determined, and the concentration is then determined as a function of the temperature difference. The second compound is preferably contained in a liquid. The second compound is in stoichiometric excess over the first compound and the heat capacity per mole of the first compound is kept constant by maintaining the concentration of the second compound in the stream constant and by uniting the liquids in constant proportions by volume. The liquids are preferably identical, e.g. water. The temperature of the united stream before reaction may be made in several ways, e.g. the temperatures of the  separate liquid streams may be measured and the temperature of the united stream calculated therefrom and in the case of the temperatures of the liquids being the same only one temperature measurement is required. The calculation may be carried out automatically by measuring the temperatures Ts, Tr, Tp with three thermistors arranged in a bridge circuit (Figs. 4 and 5 not shown) to evaluate the concentration continuously for reading off on a molarity potentiometer. Figures 1, 2, 6-9, not shown, illustrate forms of tubular reaction vessels with inlets arranged to ensure thorough mixing of the two compounds, and insulated to prevent heat gain or loss from the vessel.
Patent GB-785778-A (GB)
Title: Improvements relating to apparatus for bringing about heat-exchange between slurry and hot gases
Inventor: ANDERSEN NIELS EDVARD
IPC: F26B11/04
Filed: 1956-01-23
Abstract: 785,778. Rotary cement furnaces. SMIDTH & CO., AKTIESELSKAB, F. L. Jan. 23, 1956, No. 2198/56. Class 51 (2). In rotary drum apparatus for treating slurry with combustion gases from a burner and of the kind in which the slurry and the gases pass in counterflow through the drum, which is provided intermediate its ends with longitudinal compartments 8 ... 11 formed with grids 18 for the passage of the slurry and the gases and charged, if desired, with loose bodies, adjacent pairs of compartments are connected at their inner ends by flexible members 19. This mode of connection compensates for distortion of the drum during operation. The compartments divide the drum through a portion of its length into chambers 12 ... 15, the chambers 13, 15 being closed at their ends adjacent the upper or slurry inlet end of the drum and the interconnected chambers 12, 14 closed at their opposite ends, so that the slurry and the gases are forced to pass transversely across the compartments in their passage through the drum.
Patent GB-769731-A (GB)
Title: Improvements in or relating to means for transforming the phases in electric power systems
IPC: H01F30/14
Filed: 1955-01-25
Abstract: 769,731. Phase changing. GENERAL ELECTRIC CO. Jan. 25, 1955 [Jan. 25, 1954], No. 2218/55. Class 38 (2). A nine-phase alternator 23 is connected to a three-phase distribution system 25a, 25b, 25c through three transformers 24, whereby the currents and voltage regulation are balanced. The input phases are divided into three symmetrical three-phase groups for connection respectively to the three primary windings 24a, 24b, 24c. Two of these windings, 24b, 24c, have windings directed into sections so coupled to the various star-connected secondary windings that the output voltages of these are displaced from the primary phase volts to the extent that they are in phase with the volts of the third transformer, in which the phase change which occurs is that resulting normally from the mesh-star winding arrangement. In a modification, in which one transformer only is used for voltage transformation, one input group is connected in reverse to the transformer primary winding through series reactors, and the other two groups are connected thereto through phaseshifting mesh-connected auto-transformers, Fig. 2 (not shown). The series reactors are designed to have the same impedance drop as the autotransformers.
Patent GB-883182-A (GB)
Title: Improvements in or relating to intercommunication systems
Inventor: POLLOCK THOMAS WILLIAM
IPC: H04B1/48
Filed: 1959-01-21
Abstract: 883,182. Direct call systems. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 20, 1960 [Jan. 21, 1959], No. 2233/59. Class 40 (4). [Also in Group XL (c)] In an interconnection system in which all stations are connected in parallel over a common line, a substation comprises two stages of amplification 8 and 19 and a transmit/receive switch 4, 34, which in the transmit position connects a transmit/receive loud-speaker 33 to the input of stage 8 and connects output to the line from the cathode of stage 19, and which switch in the receive position connects the line to the input of stage 8 and the output of stage 19 to the transmit/receive loud-speaker 33, negative feed-back being supplied from the cathode of stage 19 to the grid of stage 8. Negative feed-back is applied to the grid of stage 8 over a manual volume control 6. Each substation is connected to adjacent substations along the common line by jack plugs 2 and 3.
Patent GB-1426202-A (GB)
Title: Tyre building drum assembly and tyre building machine
IPC: B29D30/32
Filed: 1973-03-16
Abstract: 1426202 Tyre building apparatus NRM CORP 16 March 1973 02347/74 Divided out of 1426201 Heading B7C The subject-matter of this Specification is described in parent Specification 1,426,201; the claims are concerned with the combination of a radially expandable tyre building drum and an inflatable bladder.
Patent GB-933044-A (GB)
Title: Locks for fastening pins
IPC: A44B9/18
Filed: 1962-01-23
Abstract: 933,044. Safety catches for pins. K. RITTMANN. Jan. 23, 1962, No. 2381/62. Class 43. A lock for a brooch pin comprises a cylinder 6 spring-urged within a slotted outer cylinder 5, a helical spring 7 is retained between an inturned rim 15 at one end of the outer cylinder and an out-turned rim 14 on the inner cylinder at the end opposite to the inturned rim, the out-turned rim having a saweut slot 12 through which the spring is threaded. To lock the inner cylinder in the pin disengaging withdrawn position, the inner cylinder is rotated to engage a projection therein in a notch at the end of the slot in the outer cylinder. A grip plate 11 on the end of the inner cylinder may be integral therewith or have a screw-threaded stud which is screwed into the inner cylinder. The end of the spring is bent over. The invention consists also in a method of assembling the lock which comprises soldering the outer cylinder 5 to a brooch, fitting the inner cylinder 6 in the outer cylinder forming the rims 14, 15 on the cylinders, forming the outturned rim 14 with a slot, threading the helical spring through the slot until the leading end engages the inturned rim and pushing the other end of the spring through the slot in the outturned rim.
Patent GB-1010461-A (GB)
Title: Improvements in band calculators
Inventor: NORTON RICHARD BOYD
IPC: G06G1/02
Filed: 1961-01-20
Abstract: 1,010,461. Calculating-apparatus. ROLLER RULES Ltd. Jan. 22, 1962 [Jan. 20, 1961], No. 2406/61. Heading G4B. A band calculator comprises a container 2 with a movable band 12, accessible through a slot 10, and passing around rollers 13, 14, one run of the band being twisted half a turn. The upper, untwisted run of the band is supported by a platform 20, and may be moved by a rubber-tipped stylus or a cursor having pushbutton control for gripping the band. A series of five successive logarithmic scales marked on the band, co-operating with a similar and a reciprocal scale along the edges of the slot 10, enable successive multiplications and/or divisions to be performed with immediate indication of the decimal point position. The device could be graduated for other calculations etc., and could be fixed to a bench or table and operated with one hand.
Patent GB-429574-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B1/08
Filed: 1935-01-24
Abstract: 429,574. Centrifugal separators. KOEFOED, HAUBERG, MARSTRAND, & HELWEG AKTIESELSKABET TITAN, 86, Tagensvej, Copenhagen. Jan. 24, 1935, No. 2428. Convention date, Feb. 26, 1934. [Class 23] A centrifugal machine for separating liquids has the inflow channel 11 for the mixture, and the outflow channel 24 for the light component, situated at one end of the bowl, and the discharge pipe 36 for the heavy component situated at the opposite end. The central part 8 which supports the liner plates 16 has an extended bottom plate 20 with a scraping edge 22 at its periphery, and has openings for the passage of the heavy component. The mixture passes from the pipe 11 to a chamber 10 at the top of the part 8, from which it passes by radial or tangential passages 12 to the space 14 between the top plate 13 and the bowl top 3. The periphery of the plate 13 is secured between the bowl top 3 and its wall 2, and the space 15 receives any sludge deposited before the liquid passes through the holes 17, 18 to the spaces between the liner plates 16. The light component passes by a short path between the plates to the channels 19, while the heavy component follows a long path through the openings in the plate 20 to the channels 21, 30. To prevent foaming, the discharge from the channels 19 passes into the chamber 26 and then through a vaned narrow slot in the periphery of the disc 27 to the outlet passages 24. The heavy component from the channels 30 passes through passages 29 in the part 28 which has vanes 34 and acts as a centrifugal pump to discharge the liquid to a chamber 33 and outlet 36.
Patent GB-1060556-A (GB)
Title: Process for dyeing cellulosic materials with reactive dyestuffs and sulphur dyestuffs
IPC: D06P1/30
Filed: 1966-01-19
Abstract: Cellulose textile materials are dyed by impregnating with a dye liquor containing a a water-soluble thiosulphonic acid derivative or water-soluble salt thereof, urea and alkali, subsequently drying, heat-treating the impregnated material, fixing the sulphur dye in the usual manner and then finishing.  The heat treatment may be effected with steam or dry heat.  The sulphur dyes may be fixed by reduction with an alkali metal sulphide or sulphydried followed by reoxidation. Examples of dyeing cotton fabrics are given.
Patent GB-509932-A (GB)
Title: Improvements in or relating to electric contactors having arc extinguishing means
IPC: H01H33/82
Filed: 1938-01-26
Abstract: 509,932. Electrically-actuated valves, WEST & CO., Ltd., A., and JOHNSON, C. Jan. 26, 1938, No. 2500. [Class 135] [Also in Group XXXVII] An electromagnetically-operated valve 2 controlling the delivery of an arc-quenching airstream from a nozzle 1 to the contacts 6, 19 of a switch, is mounted on an armature 3 guided by pins 11 on the non-magnetic base 10 of a valve-chamber 9, the base serving also to support the armature-spring 16. The heavy U- shaped yoke 4 is magnetised by an inverted U-shaped member 5 carrying the switch-current, and is arranged to attract the armature and release the air-stream in overload conditions only.
Patent GB-758591-A (GB)
Title: Improvements in resilient supports
Inventor: HUTTON PHILIP CHARLES
IPC: B24B49/00
Filed: 1954-02-23
Abstract: 758,591. Resilient supports. SILENTBLOC, Ltd. Jan. 5, 1955 [Jan. 27, 1954], No. 2555/54. Class 108 (3). A resilient support comprises an inner member B, an outer socket A<SP>6</SP> and an intermediate member C of flexible material connected frictionally with, or by bonding to, the member B, the socket A<SP>6</SP> and the member C having three areas C<SP>1</SP>, C<SP>2</SP>, C<SP>3</SP> only, of contact, spaced from one another, the member C being compressed within the socket A<SP>6</SP> by pressure applied through the areas C<SP>1</SP>, C<SP>2</SP>, C<SP>3</SP>, the lines of pressure from the centre of the area C<SP>1</SP> passing between the areas C<SP>2</SP>, C<SP>3</SP>. In the construction shown in Fig. 6, before assembly, the member C is secured within a U-shaped member A<SP>7</SP> formed with shoulders A<SP>8</SP>, which engage portions of the member C adjacent the areas C<SP>2</SP>, C<SP>3</SP>. The arms of the member A<SP>7</SP> are drawn together to compress the member C and the unit so formed is inserted within the sockets A<SP>6</SP>. The shoulders A<SP>8</SP> may be dispensed with (Figs. 9, 10, not shown), or may be formed in the socket A<SP>6</SP> itself (Figs. 1 and 2, not shown), the member A<SP>7</SP> being dispensed with. The shoulders A<SP>8</SP> may be provided by a strip which extends only within the gap between the two areas C<SP>2</SP>, C<SP>3</SP> and does not encircle the member C (Fig. 4, not shown). In a further modification (Figs. 11-13, not shown), the socket A<SP>6</SP> is of rectangular cross-section, two adjacent corners of which function in the manner of the shoulders A<SP>8</SP>. The side of the socket A<SP>6</SP> between the latter corners, is split before assembly so that the socket can be opened out to receive the member C, and subsequently closed to place it under compression. The split portions are then united by welding &c. In the last-mentioned construction, the member B may be of non- circular cross section (Fig. 13, not shown).
Patent GB-563508-A (GB)
Title: Improvements in wheels for tractors and other vehicles
IPC: B60B23/12
Filed: 1943-02-17
Abstract: 563,508. Vehicle wheels. SANKEY & SONS, Ltd., J., and ROGERS, J. Feb. 17, 1943, No. 2603. [Classes 144 (i) and 144 (ii)] The tread or rim B is adjustable laterally on the wheel disc A so that the track width of the vehicle may be varied without removal of the wheel. In Figs. 1 and 3 the disc A is formed with a flange a having depressions a<1> in which brackets C welded to the rim B are slidable when radial securing bolts D passing through clearance holes in the depressions a<1>, slots in the brackets C, and non-rotatable nuts d are slacked. In Fig. 6 the wheel hub F has an annular flange F in which a disc G carrying the rim B is adjustably secured by bolts D passing through slots f<1>, g<1> in the flange f and a flange g on the disc G. The rim B may support a pneumatic tyre.
Patent GB-538764-A (GB)
Title: Improvements in and relating to the production, recording and reproduction of sound
Filed: 1940-02-12
Abstract: 538,764. Sound reproduction. LE BRETON, W. H. Feb. 12, 1940, No. 2644. Drawings to Specification. [Class 40 (ii)] [Also in Group XXXIX] A mechanical or semi-mechanical orchestra or choir comprises loud speakers corresponding in number and arrangement to the instruments or singers of a full orchestra or choir the groups of speakers corresponding to a particular section of instruments and being controlled by the performance of a single performer. with or without a recording and reproducing link. In both cases the volume and tone of the various sections is controlled individually at a single control board provided with replaceable units for each section. The number of loud speakers in a particular group to be operative at a time is also controllable from this board. Where a fully mechanical orchestra is to accompany an actual pianist, the latter is given by television from the sound film an indication of the movement during the recording of the conductor's baton or the equivalent.
Patent GB-696472-A (GB)
Title: Improvements relating to paper wrappers, particularly for confectionery
Inventor: PERFECT RICHARD WILLIAM
IPC: D21H17/60
Filed: 1949-01-31
Abstract: A wax composition, used in the preparation of the waxed paper forming part of a composite wrapping material (see Group XVII), consists of a mixture of amorphous and/or micro-crystalline wax and paraffin wax, the proportions of the constituents being within the range extending from 1/4 amorphous and/or micro-crystalline wax and 3/4 pure paraffin wax, to 1/3 amorphous and/or micro-crystalline wax and 2/3 pure paraffin wax.  Specifications 456,820 and 594,036 are referred to.
Patent GB-432363-A (GB)
Title: Improvements in electric arc converters
IPC: H01T11/00
Filed: 1934-01-25
Abstract: 432,363. Arc converters. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GALLIZIA, E., c/o General Electric Co., Witton, Birmingham. Jan. 25, 1934, No. 2661. [Class 40 (v)] An arc converter consists of a closed chamber provided with main electrodes, the discharge between which is initiated by an auxiliary discharge, and each main electrode is associated with an electromagnet provided with an air gap between polepieces arranged adjacent the working face of the electrode, the flux in the gap being adapted to effect movement of the arc roots and the windings for each electromagnet being located outside the chamber. Each main electrode 4 consists of a copper disc having a bevelled edge and is supported by an iron member 11 provided with a reduced end portion 13 reaching nearly to the working face of the electrode. Each electrode 4 is located within a screen electrode 1 which has a truncated conical shape and is supported by a cylindrical iron member 17 closed by plates 18 of non-magnetic material. The iron members 11, 17 are connected together by iron members 20, 21 provided with a winding 22 and the magnetic field produced at the gap 7 causes rotation of the arc roots. Gas is driven by a blower through the inlet 10, gaps 7 and outlets 19. In another form, the magnetic circuit is E-shaped, the member 11 forming the centre limb and carrying the windings, the outer limbs being formed by members connected to the screen electrode. A three-phase double-wave converter may consist of six units 23 the anodes of which are connected to a bus-bar 25 connected through a bushing 26 to a cable, which passes in turn through the upper magnetic circuits of the units and then through the lower circuits and is connected to an output terminal 27. The cable may pass directly through, or may be coiled several times around a limb 21, of each circuit. Alternatively, the magnet windings may be connected in parallel. The iron members need not be laminated and may be adapted to be saturated by the magnetic flux.
Patent GB-857855-A (GB)
Title: Improvements in or relating to curtain heading tape
Inventor: FRENCH ROGER
IPC: D03D1/06
Filed: 1956-01-27
Abstract: 857,855. Curtain tapes. FRENCH & SONS Ltd., T. Jan. 28, 1957 [Jan. 27, 1956; Feb. 23, 1956], Nos. 2682/56 and 5589/56. Drawings to Specification. Class 142(4). In curtain heading tapes having woven hook tubes, the pleating cords are undyed and the weft is dyed, preferably vat dyed. The weft may be plied from differently coloured singles, or the two shuttles used in weaving the tape may carry different colours of weft. The warp may be undyed or a few warp threads down the middle of the tape may be dyed; or the warp may be plied yarns consisting of differently coloured singles. Specifications 5,235/54 and 664,835 are referred to.
Patent GB-400912-A (GB)
Title: Methods of and means for colour photography
IPC: G03C7/26
Filed: 1932-01-29
Abstract: 400,912. Colour photography. STEWART - WARNER CORPORATION, 1828, Diversey Parkway, Chicago, U.S.A.- (Assignees of Morey, J. J. ; 4448, Magnolia Avenue, Chicago, U.S.A.) Jan. 29, 1932, No. 2717. Void [Abridged as open to inspection under Sect. 91 of the Acts, Jan. 31, 1932]. [Class 98 (ii).] Colour photographs and kinematograph films are obtained by exposing a negative material comprising intermingled, differently-coloured, light-sensitive particles, and copying the negative obtained with appropriate light on to a positive material comprising superposed coatings sensitive to different colours and each containing an appropriate colour-forming ingredient. For the negative material, four batches of minutely powdered silver nitrate are dyed respectively, red, green, blue, and purple, thoroughly intermixed and dissolved in water with the addition of ammonia ; this solution is added to a gelatine solution containing ammonium bromide, preferably with a small addition of potassium iodide, together with some uncoloured silver nitrate ; hard gelatine is next stirred in and the mixture digested, cooled, cut up and washed ; the gelatinous material is next warmed, powdered casein is added, and after digestion, is thinned with alcohol and chrome alum. The emulsion is sensitized with a mixture of Orthochrome T, Sensitol Green, Sensitol Violet, and Pinachrome Violet and is applied to a celluloid film provided with a substratum comprising an alcoholic solution of gelatine and acetic acid. After exposure, the film is developed, e.g. with a metolhydroquinone developer and fixed. The positive material comprises three superposed coatings of a silver bromide emulsion in a vehicle composed of gelatine and glue and is applied to a film, glass or paper support. One coating is sensitized for red with pinacyanol or cyanin and contains uranium nitrate ; the second coating is sensitized for blue with auramin or saffron and contains ferric ammonium oxalate ; and the third coating is sensitized for green with pinaflavol or pinacyanol and contains lead nitrate and potassium bichromate. After successive printings with red, blue, and green light, the positive is developed and fixed and is then treated in a bath of potassium ferricyanide to produce the appropriate colours.
Patent GB-310770-A (GB)
Title: Improvements in or relating to conical or pyramidal diaphragms for sound-reproducingand like devices
IPC: H04R7/20
Filed: 1928-01-27
Abstract: 310,770. Clifton, W. E. Jan. 27, 1928. Diaphragms. - A diaphragm assembly for a sound recording or reproducing instrument comprises a conical or pyramidal diaphragm articulated at its periphery to a fixed support, e.g. a casing, baffleboard &c., by means of a coupling device con. sisting of a frame of strip material forming a closed figure whereof the general plane is substantially at right angles to the axis of the diaphragm. The frame is preferably composed of resilient strips arranged to permit, by bending without elongation, relative axial movement between the diaphragm and its support. In the construction shown, a conical diaphragm 10 cut off at its larger end so as to be square, in plan as described in Specification 307,450, has its corners secured by pieces of wire 21 to a frame 11 made up of four strips 12 - - 15 of thin wood or other resilient material. The frame 11 is secured to the front 16 of a casing by being held between fibre plates 17 - - 20 and wooden blocks 22 - - 25. The plates and blocks are held to the casing by screws 26 and nuts 27, the outer ends of the plates being secured by wood screws 28. By loosening the screws 28, the frame and diaphragm may be adjusted with respect to the casing. In a modified construction the middle points of the sides of the frame 11 are secured to the side walls of the casing by pins projecting in the plane of the frame, the edges of the diaphragm being fitted so as to lie close to the side walls of the casing. In a further modification, the front of the casing is arranged circumferentially to surround, and to be spaced outwardly from, the periphery of the diaphragm, the frame 11 being arranged between them. Resilient connections may be employed between the frame and casing. The Provisional Specification states that the frame may be secured to the casing by two opposite sides only.