baber/WOPTO huggingface dataset:
Patent GB-1177632-A (GB)
Title: Improvements relating to Systems for Tracking Moving Objects.
Inventor: ACKROYD JOHN
IPC: F41G7/30
Filed: 1966-01-21
Abstract: 1,177,632. Spatial filtering. BRITISH AIRCRAFT CORP. Ltd. April 18, 1967 [Jan. 21, 1966], No.2970/66. Heading G2J. [Also in Division H4] In a tracking system a "transform pattern" filter arrangement is inserted in the path of light from the scene (or its image) containing the missile and target, the filter arrangement eliminating light patterns other than those originating from the missile and target, and an output signal is generated representing the position in the object plane of the light patterns passed by the filter. A transform pattern filter for the missile can be prepared in advance; to prepare such a filter for the target, a variable field stop 6 is adjusted until only the target pattern is passed and a transform of this is photographed to produce the target filter. An additional filter representing the characteristics of the missile or the target can be inserted periodically into section 8 to produce a modulation enabling missile and target to be distinguished. A servosystem may be added to keep the target on the optical axis. Detector 11 is a closed circuit television camera or a matrix of photo-electric detectors. In a single-filter arrangement a filter Fl selecting only missile information is prepared by projecting a Fourier transform of the missile on to a photographic plate; a second filter F2 is made by adjusting stop 6 until only light from the target is present and projecting a Fourier transform thereof on to a photographic plate; a filter F1' complementary to filter F1 and a filter F2' complementary to filter F2 are prepared; filters F1', F2' are combined to produce a filter F12'; and a filter F12 complementary to filter F12' is prepared and utilized in the system. Field stop size may be programmed to allow for increasing oncoming target image with time. In another embodiment the light from the field stop is split into two parts one of which passes through the above filter F1 and the other through the above filter F2, separate detectors being utilized.
Patent GB-1527311-A (GB)
Title: Tape propelling means in cassette-type taperecorders
IPC: G11B15/18
Filed: 1976-01-27
Abstract: 1527311 Cassette tape recorder SPEM SOC PRODOTTI ELETTRONICI MECCANICI 27 Jan 1976 [29 Jan 1975] 2984/76 Heading G5R Capstan 16 for driving magnetic tape N in cassette C extends through a wall B of the recorder and through a hush including a base 12, cylindrical part 10 and conical part 11. The bush, which is made of a self-lubricating plastics material, serves to support the capstan and assists in locating and retaining the cassette.
Patent GB-328571-A (GB)
Title: Improved means for taking dental impressions and bites
IPC: A61C9/00
Filed: 1929-01-29
Abstract: 328,571. Coogan, J. V. Jan. 29, 1929. Teeth, artificial.- Dental impressions taken in plastic material in trays in the usual manner are removed from the trays, replaced on the gums of the patient, and used as bite blocks. The. upper tray a is formed with a mark 5 on its inner surface, opposite the centre of the handle 4 so as to form a corresponding mark 11 on the impression to indicate the centre of the mouth, and both upper and lower trays are formed with holes through which screws 6 are loosely passed to engage screw sockets or bushes 7 within the trays. The flat base of each tray is formed with zig-zag ridges 14 or other roughenings. In use the impressions are taken, the screws 6 are removed leaving the sockets 7 in place in the impressions which are then removed from the trays and connected together by springs 8 having screws 9 engaging the sockets 7. The impressions are then replaced on the gums to serve as bite blocks, a layer of soft modelling material 10 being placed between said blocks so that, when the patient bites, the blocks are impressed into and adhere to the material 10. Alternatively, the material 10 may be dispensed with, the biting surface of one or both of the blocks being softened before the bite is taken. Plaster models are made on the connected blocks and are mounted in the correct relative position indicated by the blocks. A line corresponding to the mark 11 is made on the plaster model to indicate the centre of the mouth.
Patent GB-1055201-A (GB)
Title: Improvements relating to piercing and drawing
Inventor: LULHAM EDWARD JOHN
IPC: B21D19/08
Filed: 1963-01-24
Abstract: 1,055,201. Stamping. COPPERAD Ltd. Jan. 24, 1964 [Jan. 24, 1963], No. 3069/63. Heading B3Q. A die-set for drawing and piercing sheet metal 12, Figs. 2 and 2A (not shown), to form a flange 18 surrounding a hole 17 comprises a piercing punch 1 surrounded by a drawing die 5, and a combined piercing die and drawing punch 8, 9 surrounded by a pressure pad 14, the punch 1 being set back in relation to the die 5 so that the sheet 12 is cupped over the punch 9 before being pierced by the punch 1, the sheet then being further drawn to the form shown in broken lines in Fig. 2a. Spring-loaded pressure plates 3, 6 are located internally and externally of the die 5.
Patent GB-851383-A (GB)
Title: A valve closure unit and a fluid coupling comprising such valve closure unit
IPC: F16L37/32
Filed: 1958-01-30
Abstract: 851,383. Pipe joints. HANSEN MANUFACTURING CO. Jan. 30, 1958 [April 17, 1957], No. 3100/58. Class 99(1). [Also in Group XXIX] A valve closure unit for a male part 11 and a female part 10 of a fluid coupling joined by projection 13 on the male part engaging bayonet slots in a sleeve 12 on the female part, comprises a stem 16 formed at one end with a head 17 and at the other with a projection 25 and surrounded by resilient means, such as spring 23, which presses a sealing gasket 15 against the head and an end member 26, by which the unit is mounted in the coupling body parts, against the projection 25. A flanged sleeve 21 guided on the stem, receives the pressure of the spring to press the gasket sealingly against the head and a tapered collar of the gasket against a groove in the stem in which it seats, Fig. 3 (not shown). The Specification describes how the couplings and each unit may be readily disassembled, cleaned, the gasket replaced and reassembled.
Patent GB-416256-A (GB)
Title: The production of concentrated solutions of follicle hormones and their esters
Filed: 1934-01-30
Abstract: Concentrated solutions of follicle hormones, or their esters, in vegetable oils are obtained by incorporating an ester of a phenol with the hormone and the oil.  Preferably the oil is admixed with a solution of the other ingredients in a volatile solvent such as ether, and the solvent afterwards removed by evaporation.  According to examples-(1) follicle hormone and m-cresol acetate are dissolved in olive oil with the aid of ether; (2) b -follicle hormone benzoate and p-cresol benzoate are dissolved in sesame oil.  The solutions may be enclosed in ampoules and sterilized by heating.
Patent GB-1422714-A (GB)
Title: Standard module for multi-function automation
IPC: G05B19/08
Filed: 1973-01-23
Abstract: 1422714 Automatic control ETHYLENE PLASTIQUE SA and COMSIP AUTOMATION SA 23 Jan 1973 [28 Jan 1972] 3310/73 Heading G3N A module for multiple automatic function comprises a plurality of input and output relays inter-connected by a matrix the columns or rows being grouped. As shown, a module M comprises a matrix 1 formed of rows 2 and columns 3, for controlling output relays 5, and rows 2a and columns 3a providing alarm indication. Programming of the matrix is effected by short-circuit tags 8 and diode tags 9, the use of which is facilitated by an indicator board carried on the module in front of the matrix. Input relays 4 are provided with change-over contacts sets of which set 4a is for an external repetition function, set 4b for a relay state indicator, set 4c having a pivot contact connected to a column 3 and movable contacts connectable by a jumper 7 to a neighbouring column and providing a control function and set 4d connected as 4c but providing a signalling function. The module is pre-wired and interchangeable.
Patent GB-305537-A (GB)
IPC: H01R33/97
Filed: 1929-02-01
Abstract: 305,537. Debelmas, L. J. L. Feb. 6, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Holders. - A device for locking bulbs in holders comprises an insulating disc 2 adapted to be locked on the bulb cap 8 in a position such that the plungers 4 of the holder pass through apertures 3 in it to engage with the lamp contacts. To enable the disc to be attached to the cap 8 it is fitted in a sleeve 1 having slots 6 to pass over the cap pins 7. The disc prevents the bulb from being removed until the union ring that holds the parts of the holder together is unscrewed.
Patent GB-1242509-A (GB)
Title: Thermoforming of thermoplastic polymers
Inventor: GOLDMAN CONRAD
IPC: H05B6/60
Filed: 1968-01-25
Abstract: 1,242,509. Heating sheet material before thermoforming. C. GOLDMAN. 13 May, 1968 [25 Jan., 1968], No. 3434/71. Divided out of 1,238,881. Heading B5A. [Also in Division H5] Thermoplastic sheeting is dielectrically heated, prior to thermoforming, by placing unheated pairs of sheets of flexible thermoplastic sheeting 1 and a carrier sheet 2 or release agent sheet at one end of a stack of such pairs between electrodes 3, 4, applying heat, and removing from the other end of the stack of pairs one pair 5, 6, for each heating cycle. With rigid thermoplastics sheeting, a carrier sheet is unnecessary, and the sheeting is heated to below its fusion point in the above apparatus, before further heating of the hottest sheet from the stack in a second dielectric heating unit. A single continuous flexible thermoplastic sheet 7 is analogously heated by simultaneously passing a multiplicity of layers thereof with suitable release sheeting, in alternating directions between the electrodes 8, 9, of the dielectric heating unit. An intermittent operation includes the step of compacting the stack of layers by reducing the gap between the electrodes, Fig. 2A (not shown). Specification 1,238,881 is referred to.
Patent GB-1141555-A (GB)
Title: Improvements in or relating to devices for linearizing pulse edges
IPC: H03K5/12
Filed: 1967-01-24
Abstract: 1,141,555. Transistor switching circuits; circuits employing magnetic storage elements. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 24 Jan., 1967 [27 Jan., 1966], No. 3466/67. Headings H3B and H3T. The slope of a pulse edge is linearized by controlling the pulse current in accordance with the difference between a fixed voltage and the voltage across an inductor carrying the current. Thus the current supplied to the storage matrix 7 when transistor 8 is made conductive produces across an inductor 4 a voltage proportional to the rate of change of current and any difference between this and that across of Zener diode 12 varies the conduce tance of transistor 1 such as to maintain thrate of change constant. Inductor 10 limits the initial base current of transistor 1. In Fig. 2 (not shown) a PNP transistor is used for transistor 1 and the base current is controlled through a secondary winding (22) while in Fig. 3 (not shown), which is similar to Fig. 2, the transistor and inductor corresponding to 1 and 4 are coupled in series with the cores by a transformer (23).
Patent GB-731979-A (GB)
Title: Improvements relating to bearing mountings for the suspension of traction motors of electrically-driven vehicles
Inventor: HOWARD RICHARD
IPC: B61C9/48
Filed: 1953-02-09
Abstract: 731,979. Mounting motors. BRITISH TIMKEN, Ltd. Dec. 10, 1953 [Feb. 9, 1953], No. 3549/53. Class 79(3). A sleeve 6 for supporting the traction motor 4 of an electricallydriven vehicle surrounds an axle 1 which carries a motor-driven gearwheel 3 adjacent a driving wheel 2, the end of the sleeve adjacent the gear wheel being formed as a housing 8 for an anti-friction bearing 14 supporting the sleeve on the axle, the gear-wheel boss having a diamat least equal to the interior diameter of the housing, and the open end of the housing being closed, except for a running clearance and without the use of a cover plate attached to the housing, either directly by the boss or by the boss in conjunction with a sheet metal member associated therewith. As shown in Fig. 1 the carcase of the motor 4 is formed with a semi-circular trough 5 seating upon the sleeve 6, the carcase being clamped to the sleeve by a bolted-on cap. The end of the housing 8 is provided with a lip 8<SP>1</SP>, Fig. 3, which is overlapped by a projection 9 on the boss 10 of the gear-wheel 3, a sheet-metal lubricant flinger ring 13 being provided. At the other end of the sleeve 6 a bearing housing 16 is bolted to a flange 17 on the sleeve, shims 18 being provided between the flange 17 and outer race of the associated bearing 15. In a modification, Fig. 4, the housing 8 overlaps a step 19 on the boss 3. Specifications 421,240 and 514,204 are referred to.
Patent GB-600353-A (GB)
Title: Phase adjuster for electric circuits
IPC: H01P1/18
Filed: 1944-02-25
Abstract: 600,353. Phase-shifters. STANDARD TELEPHONES & CABLES, Ltd. Feb. 25, 1944, No. 3575. Convention date, Feb. 27, 1943. [Class 38 (ii)] [Also in Group XL (b)] A phase-shifter for insertion in a transmission line 39, 39a is similar to that described in Specification 600,352, [Group XL (b)], but is designed to be more compact. The section 39 of the line is connected to the section 39a through part of a circular line-section 2, a bridging-section 3, and part of a further circular line-section 4. The bridging-section 3 is carried by an arm 12 which is mounted on a rotatable shaft 11, and in order that the unused portions 50, 51 of the circular sections may not react on the line 39, 39a they are short-circuited at points 25, 28 such that the portions 52, 53 between these points and the bridging-section 3 are quarter-wavelength resonators which present infinite impedance at the ends 16, 18 of the bridging-section 3. The short-circuiting brushes 25, 28 are carried by arms 20, 21 mounted on the shaft 11, and in order that the lengths 52, 53 may be adjustable to the required wavelength the arms 12, 20, 21 are movably clamped to the shaft 11 by means of setscrews. The short-circuiting bars 25, 28 and the ends 54, 55 of the circular sections are preferably earthed to the casing of the device, but if necessary the arms 12, 20, 21 may be made of insulating material to prevent the formation of standing waves. The phase delay may be indicated on a scale 41. Constructional details are described with reference to Figs. 1, 2 and 3 (not shown).
Patent GB-828068-A (GB)
Title: A wrapping machine
IPC: B65B31/02
Filed: 1958-02-05
Abstract: 828,068. Packaging. HUGIN KASSAREGISTER A. B. Feb. 5, 1958 [Feb. 28, 1957], No. 3738/58. Class 94(1). A machine for forming packages by transversely folding a web and filling and sealing the pocket so formed, as described in Specifications 769,975 and 789,652 has a housing for enclosing the filled pocket prior to sealing, so that air may be exhausted and replaced, if desired, by preservative gas. The housing consists of fixed and pivoted portions 11, 12, the latter being normally spaced from the former to enable the folded web to depend between them. When the pociet has been filled, and the web released and severed, plates 19, 20, also normally spaced from each other, pivot inwards to the position shown to grip the sides of the pocket. These plates are mounted on a member 25 attached to a vertically moveable rod 27 and downward movement of the rod and plates draws the pocket fully into the housing, which then closes. If, as in Specification 769,975, the sides of the pocket must be closed before filling, grippers (not shown) clamp the pocket sides and also draw it into the casing.  Fixed and moving heat sealing jaws 58, 59. 60, 63 are arranged inside the casing. In order to ensure good corner seams the pocket may be lowered by the plates 19, 20 in two stages, sealing of the top seam occurring at the first stage, and formation of side seams which overlap the top seam at the second. The housing is then opened to atmosphere by retraction of a plate 73, the portion 12 pivots back, a door 88 in it opens, and the package, released by the jaws and plates, is discharged down a shoot 85.
Patent GB-311214-A (GB)
Title: Improvements in or relating to apparatus for charging and discharging electric storage batteries
IPC: H02J7/04
Filed: 1928-02-07
Abstract: 311,214. Hodges, H. C. Feb. 7, 1928. Void [Published under Sect. 91 of the Acts]. No Patent granted (Sealing fee not paid). Supplying consuming devices.-In electric lighting or other installations comprising a dynamo and prime mover for charging a storage battery, a hand-operated switch has three arms C - - E controlling the circuits, the arms D, E being rigidly connected and the arms C, D being drawn bv separate springs into the off-positions shown. When the handle B is turned, a lug V turns the arm C into the starting position con. necting the battery K and the dynamo N through the contacts 0, 0<1> to start the prime mover M, and the arms D, E are simultaneously moved by a lug W on the arm C to join contacts P, P', R, R<1> respectively in the main charging circuit and in a circuit connecting the lamps L to a section only of the battery during charging. When the prime mover has started and dynamo voltage riases, the handle B is released, the arm C is returned to the off position T, the automatic cut-out A completes the charging circuit, and a shunt electromagnet F holds the arms D, E on the contacts P, P<1>, R, R<1>. When the dynamo stops or its voltage falls, the arms D, E are released and return to their " off " position, the lamps being then connected to the whole battery through contacts S, R'.
Patent GB-492032-A (GB)
Title: Method for producing a base-exchanging material
IPC: B01J39/22
Filed: 1937-02-09
Abstract: A process for the manufacture of a base-exchanging material applicable for use in softening water comprises liberating lignosulphuric acids from sulphite cellulose waste liquor or the solids thereof by means of mineral acid such as sulphuric acid or hydrochloric acid, converting the acids by the action of the mineral acid with or without heat to form a water-insoluble product, indurating the product by dehydration, removing excess acid and soluble matters, and granulating the product to a particle size suitable for effecting base-exchange by percolation. If the sulphuric acid used is sufficiently concentrated and used in sufficient quantity, liberation, conversion, and induration may take place in one step.  Otherwise treatment such as evaporating the acid mixture to dryness and heating the residue for some hours at temperatures ranging approximately from 100 to 180 DEG  C. is necessary.  The process may be carried out under pressure in an autoclave.  The indurated product may be sulphonated before or after granulation.  If the conversion of the lignosulphuric acids to a water-insoluble product has not proceeded far enough, there may be a slight solubility which can be removed by treatment of the product first with a dilute solution of an alkali carbonate or bicarbonate and then with a dilute solution of a salt of aluminium or iron.  U.S.A. Specification 1,977,728 is referred to.ALSO:A process for the manufacture of a base-exchanging material applicable for use in softening water comprises liberating lignosulphuric acids from sulphate cellulose waste liquor or the solids thereof by means of mineral acid such as sulphuric acid or hydrochloric acid, converting the acids by the action of the mineral acid with or without heat to form a water-insoluble product, indurating the product by dehydration, removing excess acid and soluble matters, and granulating the product to a particle size suitable for effecting base-exchange by percolation. If the mineral acid used is sufficiently concentrated and used in sufficient quantity, liberation, conversion, and induration may take place in one step. Otherwise treatment such as evaporating the acid mixture to dryness and heating the residue for some hours at temperatures ranging approximately from 100 to 180 DEG  C. is necessary.  The process may be carried out under pressure in an autoclave.  The indurated product may be sulphonated before or after granulation.  If the conversion of the lignosulphuric acids to a water-insoluble product has not proceeded far enough there may be a slight solubility which can be removed by treatment of the product first with a dilute solution of an alkali carbonate or bicarbonate and then with a dilute solution of a salt of aluminium or iron.  U.S.A. Specification 1,977,728 is referred to.
Patent GB-840243-A (GB)
Title: Electrical heating element
IPC: H05B3/34
Filed: 1958-02-06
Abstract: 840,243. Electrically heated fabrics. GOODYEAR TIRE & RUBBER CO. Feb. 6, 1958 [June 13 1957], No. 3874/58. Class 39(3). [Also in Group VIII] An electrical heater element is composed of a warp knitted fabric consisting of a series of warp chains 7, 8, 9 ... knitted from yarns of natural or synthetic material of relatively high tensile strength, joined together by laid in weft yarns 26, 27, 28 ... of similar or other material such as glass fibre, the weft yarns extending parallel to each other in the fabric and a number of them secured in each warp stitch. Wires 1, 2, 3 ... extend longitudinally of the fabric and are incorporated in the warp chains as unknitted warp wires, the wires periodically extending from one wale to the next or over a series of wales so as to assume a generally sinuous form thereby ensuring that the fabric is reasonably flexible. The wires are connected in groups or otherwise to electrical conductors and serve as resistances. The wires may be solid or stranded and, when the latter, may be of right and left handed twist, positioned alternately in the fabric. After the circuit connections are made the element is sandwiched between insulating layers of electrically non-conductive material such as rubber. The assembly is then vulcanized under heat and pressure to form an integral structure.
Patent GB-706527-A (GB)
Title: Improvements in or relating to infinitely variable speed gears
IPC: F16H9/14
Filed: 1952-02-14
Abstract: 706,527. Expanding-pulley gear. CARTER BROS. (ROCHDALE), Ltd., and DEAN, F. Sept. 22, 1952 [Feb. 14, 1952], No. 3927/52. Class 80 (2) One flange 3 of an expanding pulley is.axially moved positively in both directions relative to the axially immovable other flange 4 by relative rectilinear movement between the whole pulley and an inclined bar 12 having an elongated slot 18 in which slides the reduced part of a block 16 in which bears the external peripheral surface of a boss 5 of the movable pulley-flange 3, as by a ball or roller bearing 20. Positive axial separating movement of the flange 3 is provided by dovetailed tongue-and-groove engagement 17 between the block 16 and bar 12, and/or by an end-disc 23,attached to the block 16, and may be assisted by springs. Either the inclined bar 12 or the pulley may be moved, the other being stationary. In Fig. 2, the variable driving pulley is carried on the shaft 2 of a motor 1 which, to vary the effective pulley-diameter, is traversed on base-guides 9, parallel or inclined to the plane of the V-belt 27, by an adjusting screw 29, to cause the block 16, supporting the movable pulley-flange 3, to ride along the inclined linear or curved face 14 of bar, 12, which is carried on a fixed pillar 11. The axis and diameter of the output pulley '25 are invariable. In Fig. 4 (not shown) the movable flange 3 slides directly on the shaft 2. In Fig. 5 (not shown) the inclined bar 12 is arranged between the pulley and motor and adjusts the inner flange. In Fig. 6 (not shown) a variable output pulley, rotating on a fixed axis, is adjusted by bodily movement of an inclined bar secured to the motor, which is moved bodily, as before, but now carries an invariable input pulley. In Fig. 7 (not shown) the outer flange of the input and inner flange of the output pulleys are simultaneously moved axially in the same direction on fixed axes by bodily movement of two permanently connected inclined bars.