baber/WOPTO huggingface dataset:
Patent GB-907980-A (GB)
Title: Improvements in or relating to silicon power transistors
IPC: H01L21/00
Filed: 1959-03-26
Abstract: 907,980. Transistors. SIEMENS-SCHUCKERTWERKE A.G. March 26, 1959 [March 27, 1958], No. 10655/59. Class 37. A power transistor comprises a silicon disc with emitter and collector regions of one conductivity type on opposed sides of a less highly doped base region of opposite conductivity type, and a base contact so disposed on the same face of the disc as the emitter that a spacing strip of uniform width exists between them. The base region thickness lies in the range 0.03 to 0.08 mm. when of P type, and between 0.02 and 0.05 mm. when of N type, and the width of the spacing strip is not more than twice the base region thickness but not less than 0.025 mm. The limitation on the base region thickness is imposed by the necessity of maintaining it greater than the diffusion length for high carrier injection densities, whilst the thickness of the spacing strip is determined by the conflicting considerations of reducing carrier losses and the voltage loss in the forward direction between emitter and base contacts, and increasing the maximum permissible inverse voltage between emitter and base contacts. In the embodiment circular emitter E and collector C are formed by alloying foils of antimony doped gold to opposite faces of a P-type silicon disc. The base electrode A is formed by alloying a ring of aluminium foil concentric with the emitter to the disc. Alloying is preferably effected by embedding the foils and disc in graphite powder under pressure, heating to 700-800 C., and cooling slowly. Specifications 819,829 and 840,241 are referred to.
Patent GB-182925-A (GB)
Title: Improvements relating to alarms applicable on motor vehicles and for other purposes
IPC: B60R25/10
Filed: 1921-04-12
Abstract: 182,925. Garrett, C. W. April 12, 1921. Theft and like alarms.-An alarm device for use in connection with a strap &c. for holding luggage on a motor vehicle causes the completion of an alarm circuit when the holding strap is released. As shown in Figs. 1 and 2, a frame a is provided with a slide c which carries contact studs c<2> adapted to co-operate with the insulated contacts a<3> in an alarm circuit. The portions of the strap b are secured to the bars a<2>, e so that when the strap is drawn taut the slide c is drawn out from the casing a and the contacts c<2>, a<3> are separated. Should the strap become loosened or broken the slide c moves into the casing under the action of the springs d and closes the alarm circuit. In the modification shown in Fig. 3, a bracket f, fixed to the luggage carrier, supports a casing g within which the insulated contacts h are mounted. A loop i passes through the wall of the casing g and carries the bar i<1>, secured on the limbs of the loop by nuts i<2>, provided with contact points which co-operate with the contacts h. The manner of operation of this modification is similar to that described with reference to Figs. 1 and 2. The parts of the device may be carried by the bracket f, the casing g merely acting as a cover.
Patent GB-1336244-A (GB)
Title: Extruder for thermoplastics and non-crosslinked elastomers
IPC: B29C48/67
Filed: 1971-04-22
Abstract: 1336244 Screw mixers WINDMOLLER & HOLSCHER 22 April 1971 [15 May 1970] 10826/71 Heading B1C [Also in Division B5] An extruder screw has a mixing section C with at least one mixing ring 1 having apertures 2, 3 which are alternately oppositely inclined to the longitudinal axis of the screw; as shown they lead alternately from near the core to near the chamber wall, and vice versa, so that cooler and hotter portions of the material are interchanged. There may be inlet cavities 4, 5 and outlet cavities 6, 7 arranged as shown in Fig. 4 in relation to the direction of rotation 8 of the screw. Each ring 1 may be a replaceable disc and there may be further flow dividing element between rings. The core diameter of the mixing section C is less than that of the feeding section A or of the shearing and homogenizing section B which has a multi-ribbed ring as described in Specification 1336245.
Patent GB-286911-A (GB)
Title: Improvements in or relating to combing machines
IPC: D01G19/20
Filed: 1927-04-25
Abstract: 286,911. Nasmith, J. W. April 25, 1927. Addition to 275,111. Combing-machines.-In a feeding-arrangement having two feed-rollers, the nip of which is substantially flush with the nipper plate as described in the parent Specification, the bearings of both rollers are carried by one member which is moved in relation to the nipper plate to secure the desired draw-back of the lap, before the nipper closes, to avoid an accumulation of good fibres behind the top comb. The nipper cheeks K carry levers 8 pivoted at 21 and forked at the lower end to receive the bearing 14 for the upper roller F. The bearing 14 is adjustably mounted on a member 15, which is pivoted on a pin 17 carried by the lever 8 and is controlled by a spring 19. The lower roller f is carried by open bearings 7 secured to the front face 9 of the lever 8. As the nipper swings forward about the pivot N an adjustable screw stop R carried by the lever 8 contacts with a fixed pin P and causes the lever 8 to carry the feed rollers forward bodily relatively to the nipper plate 1. When the nipper swings back the spring 19 draws the lever 8 back into its normal position with a stop 12 against an adjustable screw 13 carried by the cheek K.
Patent GB-763935-A (GB)
Title: Equipment for the treatment of water with chlorine gas
IPC: C02F1/76
Filed: 1954-04-14
Abstract: 763,935. Purifying water. HARTLEB, E. April 14, 1954 [April 14, 1953], No. 11027/54. Class 46. [Also in Group XXVIII] Gaseous chlorine from a bottle 1 passes through a quick-closure valve 6, quantity meter 7 and one of three inspection glasses 8 to an expansion chamber 9, a chamber 10 where it is mixed with air and a chamber 11, preferably identical with that shown in Figs. 2 and 3 of Specification 762,223, where the gas mixture is introduced into a stream of water to be treated forced through the chamber 11 by a centrifugal pump 14 from a pipe 13. The liquid passes from chamber 11 into an intermediate vessel 18 in communication with the atmosphere by an overflow 19 and is extracted thence by a second centrifugal pump 15 which delivers it to a second chamber 11a supplied with a chlorine-air mixture by the bottle 1 through an expansion chamber 9a and mixing chamber 10a. This process is then repeated a second time, the effluent from the intermediate vessel 18c being delivered by a fourth pump 17 through a valve 22 to a ceramic filter 23 whence it passes through a valve 25 to a container for pure water, 26, having a discharge pipe 28. The filter 23 may be backwashed to waste at 35, the water for backwashing being derived, by a suitable manipulation of valves, from either the vessel 18c or the container 26.
Patent GB-162178-A (GB)
Title: Improvements in and relating to finger guards for the heaters and duck bills of looms
IPC: D03D49/68
Filed: 1920-04-21
Abstract: 162,178. Hull, J. E. April 21, 1920. Guards.-A coiled wire finger-guard d for the heater a and duck-bill of a loom is mounted on two projections c carried by extensions b of the heater. The heater may be bolted to a bracket e as shown in Fig. 1, projections b<1> being provided on the heater to prevent it from turning. As shown in Fig. 4 the heater a may be formed separately from the cross-piece b<2> carrying the guard.
Patent GB-949328-A (GB)
Title: Improvements in and relating to semi-conductor devices
Inventor: CUMMING HARRY WYNDHAM LISTER
IPC: H01L23/04
Filed: 1961-03-27
Abstract: 949,328. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 16, 1962 [March 27, 1961], No. 11073/61. Heading H1K. An encapsulated semi-conductor device (Fig. 3) is assembled by connecting the operative electrodes associated with a semiconductor body 1 to conducting support members 3 extending through a rigid body 4 of insulation, electrically testing the resulting sub-assembly, and after satisfactory completion of the testing securing each of the members 3 to a corresponding further support member 5 extending through and hermetically sealed into a second rigid body 6 of insulation forming part of a header. In the typical example shown, the device is a transistor, the insulating bodies are constructed of glass, ceramic or plastics and the body 6 is bonded to a metal ring to which metal cap is subsequently cold-pressure bonded or resistance welded to complete the encapsulation. The method, also applicable to diodes, avoids wasting relatively expensive headers on electrically unsatisfactory elements.
Patent GB-931862-A (GB)
Title: Improvements in or relating to radio frequency transformers
Inventor: BAGSHAW GEORGE WILLIAM
IPC: H03H7/01
Filed: 1959-04-02
Abstract: 931,862. Transformers. PLESSEY CO. Ltd. April 14, 1960 [April 2, 1959], No. 11193/59. Class 38 (2). A radio-frequency transformer has a core comprising a pot-like outer core part of ferrite and an inner ferrite core rod 4 (Fig. 4) mounted on a base 1 and adjustable longitudinally in the outer core part which is carried in one end of a plastics sleeve 6 (Fig. 1) by screwing the threaded stem 2 into the other end of the sleeve 6 which is slit at 7.
Patent GB-449711-A (GB)
Title: Improvement in and relating to the adjustment of mast rigging
IPC: B63B15/00
Filed: 1935-04-11
Abstract: 449,711. Masts. BARROS, J., 66, Craven Park, Harlesden, London. April 11, 1935, Nos. 11208/35 and 6537/36. [Class 115] Masts are raised vertically to tighten the rigging. The mast 4 is supported on a flange 5 of a socket 3, which is feathered to a screw 2. The nut 7a working on the screw is provided on its upper surface with recesses with which engage spring-urged positioning balls 6. In the form shown in Fig. 5, the mast 4 is supported by a cradle 14 operated by intergeared twin-screws. In another form, the mast is raised by a pivoted lever operated by a screw. Block and pulley tackle may be employed to raise the mast.
Patent GB-126633-A (GB)
Title: Improvements in or relating to Gas Compressors.
Inventor: BIRK ANKER EMIL ADOLPH
IPC: F04B39/00
Filed: 1919-05-05
Abstract: 126,633. Birk, A. E. A. May 6, 1918, [Convention date]. Values, arrangement of.-Gas is admitted to the cylinder during the first part of the suction stroke through ports c, d, f, in the sides of the cylinder and the chambered piston, and a valve e at the top of the piston; during the remainder of the stroke, the ports are uncovered by the piston and the gas admitted directly above it into the compression space.
Patent GB-731999-A (GB)
Title: Process for the concentration of phosphate in rock phosphate
IPC: C05B11/02
Filed: 1953-04-23
Abstract: The phosphate content of calcite-containing phosphate rock is increased by calcining said rock and subjecting the calcined product, preferably after dry-slaking (i.e. slaking with the stoichiometrical amount of water to convert the calcium oxide into hydroxide) to a dry separation treatment, e.g. air-classification, to separate the phosphate from the calcium oxide or hydroxide.  If desired the air-classification may be repeated on the products to increase their purity.  In the example the calcination was conducted at 900-950 DEG C. in a rotary kiln. The use of shaft kilns is mentioned. Specifications 22851/10 and 224,468, [both in Class 1 (iii)], are referred to.
Patent GB-1092345-A (GB)
Title: Automatic handling of magnetic parts
IPC: B65G54/02
Filed: 1965-03-17
Abstract: 1,092,345. Magnetic separators. C. VOORHIES. March 17, 1965, No. 11321/65. Heading B2J. [Also in Division B8] Washers 18 which are stuck together are dropped down tubes 16 and are held and separated one from another by the energisation of electromagnet 20. When the magnet is de-energised the washers 18, now separate, fall onto one of a plurality of pins 12 resiliently held on endless conveyor 10. Pin 12 is now conveyed past electromagnet (26) at a second station not shown and energisation of the electromagnet causes, by repulsion, the washers 18 from pin 12 to be transferred to the magnet whilst leaving the last washer on the pin 12. The washers held by the electromagnet 26 are removed therefrom by an arm sweeping the surface of the magnet and are transferred back to station 1. Pin 12 now carrying one washer moves on the conveyor past a third station at which a plunger (34) (not shown) moves downwards to depress pin 12 and to engage in the central aperture of the washer 18 and to lift it upwards off the pin for subsequent use.
Patent GB-942155-A (GB)
Title: Improvements in or relating to rotary fluid pressure pumps and motors of the eccentric vane type
IPC: F04C2/08
Filed: 1961-03-28
Abstract: 942,155. Rotary vane pumps and motors. D. H. COCKBURN March 28, 1962 [March 28, 1961], No. 11342/61. Heading F1F. A rotary pump or motor comprises a rotor 6 eccentrically mounted within a cylindrical casing 1 and substantially T-shaped vanes 11 (Fig. 3) sliding in grooves 8 in the rotor. Each flange 15, 16 of the vane is forked, the forks of one vane engaging those of the next (Fig. 4). The inlet and outlet 9 communicate with the working space through the gap between the forks 16. The flanges are bevelled at 21, between the forks, so that the forks are more uniformly stressed. The vanes may be made as drop forgings, or, alternatively may be formed from two L-shaped sheet metal portions. Specification 735,611 is referred to.
Patent GB-772604-A (GB)
Title: Improvements relating to apparatus for introducing foam-stabilising solutions into water streams
Inventor: HENSHAW THOMAS ANTHONY
IPC: A62C5/00
Filed: 1954-04-20
Abstract: 772,604. Mixing fluids in flow. PYRENE CO., Ltd. April 13,1955 [April 20, 1954], No. 11357/54. Class 86 [Also in Group XXVIII] An injector for introducing a foam stabilizing solution into a water stream comprises a fixed jet member 4 and an axially movable throat member 8 disposed in a casing 1, the position of the member 8 controlling the space between the members 1 and 4 and the opening to a port 46 in the casing wall through which foam stabilizing solution is induced by the flow of water through the jet 4 and throat member 8. The members 4 and 8 have co-operating conical surfaces 7, 10. Axial movement of the member 8 is controlled by a pivoted lever 18 having a slot 20 engaged by a radial arm 14 attached to the member 8. An indicator disc 24 is adjustably mounted on the arm 18 and carries markings . registering with a mark on a bracket 26. In a modification, a radial arm 48, Fig. 4, attached to a sliding throat member 38, extends through a helical slot 30 in the casing 31 and an axial slot 32 in a sleeve 33 which is rotatably mounted on the casing 31. The sleeve 33 carries a housing containing a spring pressed ball 36 adapted to engage one of a series of depressions 40 to facilitate setting the throat member in predetermined positions. The throat member 38 is composite and comprises, adjacent the port 43, a ring 44 having an oblique end face 47 which can be adjusted so that it just closes the port 43.
Patent GB-113595-A (GB)
IPC: F41G1/24
Abstract: 113,595. Manley, J. C. M., and Skerman, O. Jan. 19, 1917. Sights.-Consists in forming a deep notch H in the upper end of the sight-slide A to expose the graduations or numerals on the stem or leaf C.
Patent GB-312761-A (GB)
Title: Golf clubs, and method of making the same
IPC: A63B53/04
Filed: 1928-04-17
Abstract: 312,761. Drevitson, C. B. April 17, 1928. Golf clubs.-A golf club consists of a core having approximately the shape of the completed head, and an aluminium shell cast and contracted upon the core. Fig. 2 is a section of a driver with a core 15 of wood or non-metallic composition and a shell 17 extended to form a socket 20 cast around a bushing or core 19 for the handle. The shell extends as ramifications 18 into holes drilled in the core 15 which is exposed on one side to form the striking face. The face may be bored to form a cavity 21 filled with a plug of wood, &c. which may assist to hold the core in the die. In the form of driver shown in Fig. 6, part of the core extends to the outer surface at 26<a>, while some of the ramifications extend to the striking face 27. With wooden cores, the grain extends at an angle to the striking face. In the surface on both sides, the protruding parts 33<a> being cut away flush with the shell. The socket 20 may have a flat portion 46 or corrugations to prevent twisting of the handle. In the iron shown in Fig. 9, the core consists of a plate 39 of rustless metal, such as bronze or stainless steel, with countersunk holes to receive the ramifications 43 of the shell 42. The plate 39 is extended at 44 to form a tenon for the handle socket, and is positioned in the die bv lugs 41 which are cut off flush with the shell. The core may be treated or impregnated with wax, oil, &c. to prevent swelling, shrinkage, or absorption of moisture. Specification 13531/09 is referred to.
Patent GB-106374-A (GB)
Title: Improvements in or relating to Compound Fabrics comprising Cork.
Inventor: BRIONES DON JULIO NAVARRO
IPC: F16L59/02
Filed: 1916-08-14
Abstract: 106,374. Briones, D. J. N. Aug. 14, 1916. Compound fabrics and sheet materials.-Relates to compound fabrics and consists in enclosing a layer about 1 to 2 millimetres thick of cork dust or of fine strips of cork between two sheets of textile fabric which are united by seams of crossing threads forming spaces having sides about 1 centimetre long. When cork strips are used, the fabric may be perforated by cylinders provided with small teeth or pins. The fabric may be used for garments, cushions, mattresses, chair seats, tents, or carpets, and provides insulation against heat and electricity.
Patent GB-1176834-A (GB)
Title: Improvements in or relating to Planning Calendar for Stables.
Inventor: OLLIVIER PIERRE
IPC: G09D3/00
Filed: 1967-03-10
Abstract: 1,176,834. Manifolding sets. P. OLLIVIER. 10 March, 1967 [11 March, 1966], No. 11476/67. Heading B6A. A calendar indicating the heat, insemination and gestation periods of female domestic animals comprises an upper sheet provided with printed columns and rows of months and days, respectively, the days being associated into groups of recurring heat periods and, a lower sheet on which the months are offset relative to the upper sheet by the gestation period. A carbon sheet is disposed between the sheets so that on confirmation of insemination date, which is marked on the upper sheet, the end of the gestation period is indicated on the lower sheet.
Patent GB-150252-A (GB)
Title: Improvements relating to the advertising exhibition of washing-boilers
IPC: G09F19/10
Filed: 1920-04-26
Abstract: 150,252. Ahlgrimm (nÚe Gunkel), H., and Hochstrate, P. April 26, 1920. Rotary apparatus.- Washing-boilers of the type in which circulation of the liquid is indicated by the rotation of a shaft fitted in the boiler lid and driven by a vane wheel turned by the moving liquid, are adapted for display purposes by fitting on the ends of the shaft d devices, such as disks e, which render the rotation of the shaft conspicuous, and by rotating the shaft without the application of heat to the boiler, e.g. by an electric motor b.
Patent GB-1167090-A (GB)
Title: Method of Manufacturing Heating or Cooling Panel-Type Radiators.
Inventor: CABELKA JOZEF
IPC: F28F3/14
Filed: 1967-03-13
Abstract: 1,167,090. Making radiators. ONMIA SPOJENE STROJARNE A SMALTOVNE GENERALNE RIADITELSTVO. 13 March, 1967 [17 March, 1966], No. 11575/67. Heading B3A. [Also in Divisions B5 and F4] A radiator is made by bending one or more metallic or non metallic bands joined together along the edges thereof, Fig. 1b, into a wave shaped heating or cooling unit, Fig. 3a, which is inflated by a liquid or gaseous fluid under pressure introduced through inlet and outlet connections provided on the band or bands before joining the edges thereof. The edges of one folded sheet or two superimposed sheets, flat or profiled, are welded together to form the unit, which is finally shaped by the pressure fluid in a mould. The wave shaped radiator may be formed with a series of interlinked enclosed spaces, Fig. 6b. The sheets are precoated with a corrosion inhibitor or an inhibitor is inserted in the pressure fluid. The radiator may be fitted with cooling fins.
Patent GB-161988-A (GB)
Title: Improved method of and apparatus for depth sounding
IPC: G01S15/10
Filed: 1921-04-21
Abstract: 161,988. Blondel, A. April 21, 1920, [Convention date]. Determining distances acoustically; sound, actuating apparatus by; detecting subaqueous sounds.-In sea-sounding by the echo method separate receivers, or separate circuits with one receiver, are used for the initial sound and the echo, the " echo " circuit being incomplete or shunted till after the emission of the sound and the " time of flight " of the sound is measured bv the amount a condenser is charged which is in a circuit made when the initial sound is received and broken by the echo. The receivers are placed on a ship, say at the end of water-filled passages separated by diaphragms from the sea, but Fig. 2<bis> illustrates the use of one receiver M with two circuits. Closing the switch u discharges the bomb A and gives a record C,. At the same time the ' echo ' circuit is completed by a relay at R1 so that the echo can be recorded as C2. In the modification shown in Fig. 5, an insulating and a conducting drum K1 and K<1>1 rotate side by side, one carrying a conducting strip d<1> and the other an insulating strip d<1>1 so arranged that the ' echo ' circuit is cut when the bomb discharge circuit is complete. If, instead of the recorders G1, G2 with marking arms A1, A2, relays 3 and 4, Fig. 8, are used, an armature 15 can be attracted when the initial sound is received to complete a circuit which is broken when the echo relay 4 pulls over the armature 19. During the time current flows from the battery B0, a condenser C is charged, the amount of charge being ascertained by means of an electrometer E or ballistic galvonometer H so that a measure of the ' time of flight ' of the sound is obtained. Specification 22940/14 is referred to.
Patent GB-658440-A (GB)
Title: A securing or cover strip for use at the joints of sheets of facing material
IPC: A47F3/12
Filed: 1949-05-03
Abstract: 658,440. Wall &c. surfacings. METCALFE, R. May 3, 1949, No. 11765. [Class 20(iv)] The roughly-shaped edges of two adjacent panels are covered and secured to a wooden frame 14 by inserting them each into a channel of a double-channelled metal strip 12 which comprises spaced flange members 11a extending alternately on each side of the lower edge of an integral central web 11, and a separately formed continuous flange 12 which is secured to the upper edge of the web 11, e.g. by soldering. A curved strip is formed by cutting out a curved upper flange 12 and bending the part 11, 11a accordingly. Screw holes 11e are formed in each flange member 11a which may have bent ends 11d. A series of spaced webs may be secured to a single .upper flange.