baber/WOPTO huggingface dataset:
Patent GB-1234485-A (GB)
IPC: H01L29/00
Filed: 1968-11-18
Abstract: 1,234,485. Gain control. SONY CORP. 18 Nov., 1968 [20 Nov., 1967], No. 54519/68. Heading H4R. A variable attenuator circuit uses a magneto resistive semi-conductor device in a potentiometer to supply a D.C. control voltage to an attentuator including a voltage variable impedance, e.g. a field effect transistor. The magneto resistive semi-conductor device is of the type described in Specification 1,200,379 comprising a body of intrinsic semi-conductor material provided with N type and P type zones at its ends and a recombination zone in between with a permanent magnet mounted for movement relative to the device to control movement of the charge carriers toward and away from the recombination zone, and thereby the impedance between conductors attached respectively to the N type and P type zones. One or more of the devices, e.g. R1, R2, Fig. 6, controlled by a single permanent magnet 28, are arranged in a D.C. potentiometer circuit, or bridge circuit, Fig. 7 (not shown), to control the potential on the gate electrode of a field effect transistor 36 whose source drain path is connected in a potentiometer 43 arranged in a signal path. The use of two devices oppositely oriented relative the magnet, provides a greater variation with respect to magnet movement than can be obtained with a single device and also provides compensation for the temperature dependent variation of resistance.
Patent GB-1256772-A (GB)
Title: Improvements in or relating to a process of manufacturing tubes
Inventor: GONTARD JEAN
IPC: B21C37/08
Filed: 1969-08-14
Abstract: 1,256,772. Making tubes; skelping; welding by pressure. VALLOUREC (USINES A TUBES DE LORRAINE-ESCAUT ET VALLOUREC REUNIES) ELPHIAC S.A. 14 Aug., 1969 [16 Aug., 1968], No. 40636/69. Headings B3A, B3E and B3R. In a method and apparatus for producing a welded tube from metal strip the strip is preheated in a furnace, formed into a tube with the edges of the strip adjacent each other with a small gap between them, the edges are superheated, preferably by electric induction heating, a gas is blown on to the edges and the tube welded by bringing the edges together by means of forming rollers. The gas may be oxygen, air or a mixture thereof, or steam. The heating in the furnace is preferably to 900‹ to 1300‹ C. with superheating of from 50‹ to 450‹ C. in the case of steel strip.
Patent GB-1257444-A (GB)
IPC: F26B17/00
Filed: 1970-03-10
Abstract: 1,257,444. Tea dryer. S. PAREEK, and J. K. BOROOAH. 10 March, 1970 [12 March, 1969], No.11422/70. Heading F4G. A tea drying machine comprises sets of sectorshaped perforated trays R mounted in horizontal circular configuration inside a housing C into which hot air is fed tangentially via inlet F, wherein each tray is attached to a central rotatable shaft G with a boss H, and each can tilt about a radial axis and is mounted on, or hinged to, radially disposed rods pivotally  mounted in boss H and ring B. Trays R during their rotational movement are kept horizontal by a second ring A in which there is at least one cut-out portion having a downwardly sloping flange A 1 , at which point a passing-over tray is allowed to tilt and deposit tea on to the  trays below. The top trays are scraped by a downwardly depending scraper attached to the cover on the housing, and the dried tea exits through a shoot E 1 .
Patent GB-1257923-A (GB)
IPC: E04D13/17
Filed: 1968-05-03
Abstract: 1,257,923. Improvements on or relating to roofs and ceilings. H. KEEBLE. 21 March, 1969 [3 May, 1968], No. 21173/69. Heading E1W. A roof or ceiling comprising screed 4 (e.g. lightweight or dense concrete) overlying concrete slab 2 is dried out by providing an air cavity or passages between the two layers and allowing air to pass through. Blocks 1 with communicating cavities 3 may be interposed between the layers with sheet 5 (e.g. of porous paper or asbestos) immediately below the screed and there may be gaps and holes provided from the blocks to allow air to circulate. The roof may be covered before or after drying by asphalt or bitumen.
Patent GB-1258960-A (GB)
IPC: D03D47/23
Filed: 1969-08-27
Abstract: 1,258,960. Shuttleless looms. J. DUPLESSY. 27 Aug., 1969 [27 Aug., 1968], No. 42642/69. Heading D1E. The inserting and receiving grippers A, B, of rapiers of a shuttleless loom each have a stationary jaw 4, 24, and a jaw 5a, 25a, turnable about the axis of the grippers and resiliently urged towards the fixed jaw, the gripper B having a holding means 31 to hold jaw 25a in the open position until the grippers meet at the changeover point when member 31 is turned by a projection 4 on gripper A to release jaw 25a and allow it to close to grip the thread, a projection 25e on the jaw 25a simultaneously engaging the end of jaw 5a and moving it to its open position to release the thread, in which position it is held by a holding member 10a. At the end of the return movements of the grippers projection 33 on gripper B is engaged by a cam (H), Fig. 1 (not shown) to reopen jaw 25a to the position in which it is held by the end 31a of member 31 engaging a recess (25g), Fig. 8 (not shown) of the jaw 25a and member 10a on gripper A rides under a pivoted arm 13, Fig. 16, of an actuator G without being actuated thereby. At the beginning of the inward movements, jaw 25a remains open and member 10a is forced inwards by the actuator G to disengage from recess 5d and thereby release arm 5a which closes to grip the weft thread (C) for insertion. The jaws 5a, 25a are loaded by tension springs (8, 28), Figs. 7, 8 (not shown). The lever 13 of actuator G, Fig. 16, has a ramp 13b which causes the lever to lift and ride over the member 10a when gripper A is returning to the right, the member 10a being forced inwards by the end face of the lever 13 when gripper A moves to the left at the beginning of its inward stroke.
Patent GB-1259143-A (GB)
IPC: G05D23/24
Filed: 1969-09-04
Abstract: 1,259,143. Measuring temperature. INTERNATIONAL STANDARD ELECTRIC CORP. Sept.4, 1969 [Sept.11, 1968], No.43796/69. Heading G1N. [Also in Division G3] In apparatus for temperature control, a first switching process is initiated when a pre-selected temperature is reached and, for pre-selected temperatures above a certain value, upon initating said first switching process there is also effected a modification to the temperature detector circuit so that it then responds to a second response temperature, upon reaching of which there is initiated a second switching process. Fig.1, shows a circuit for controlling the temperature of lye in a washing machine and for switching on a vapour extractor if the selected lye temperature is above a certain value. When N.T.C. resistor 1 reaches the temperature selected by switch 2, transistor 8 in the diagonal of the bridge circuit becomes conducting and relay 11 is de-energized to cut off the heating. If switch 2 is in zone b, representing a selected temperature below said certain value, the heating remains off until the lye has cooled sufficiently for transistor 8 to become blocked. If switch 2 is in zone a, representing a selected temperature above said certain value, relay 12 becomes energized, holding itself on through contacts 12a and changing over contacts 12b to substitute a different resistance in the bridge circuit so that transistor 8 becomes blocked and heating is resumed until the selected temperature is reached. In an alternative arrangement Fig. 2 (not shown), a transistor switch (16) performs an analogous function to that of contacts 126 in Fig.1, if the selector (2a) is set for a temperature above a certain value.
Patent GB-1259322-A (GB)
IPC: C12N11/18
Filed: 1969-10-07
Abstract: 1,259,322. Insolubilized enzymes. CORNING GLASS WORKS. 7 Oct., 1969 [14 Oct., 1968], No. 49141/69. Heading C3H. An insolubilized enzyme composite comprises at least one inorganic carrier having available hydroxyl or oxide groups, at least one enzyme bonded to the carrier and at least one substrate bonded to the enzyme. The carrier may be porous glass, silica gel, colloidal silica, bentonite, wollastonite, alumina or hydroxyapatite. Enzymes mentioned are papain, ficin, pepsin, trypsin, chymotrypsin, bromelin, keratinase, alkaline, protease from Bacillus subtilis, cellulase amylase, maltase, pectinase, chitinase, lipase, cholinesterase, lecithinase, acid and alkaline phosphatases, ribonuclease, desoxyribonuclease, arginase, asparaginase, glutaminase, urease, glucose oxidase, catalase, peroxidase, lipoxidase, cytochrome reductase, glutamic pyruvic transaminase, glutamic oxalacetic transaminase, transmethylase, and phosphopyruvic transphosphorylase. In examples, the carrier is treated first with the substrate and then with the enzyme.
Patent GB-1307523-A (GB)
Title: Movements for instruments
IPC: G01R5/22
Filed: 1969-03-14
Abstract: 1307523 Thermal electric meters: indicating apparatus SMITHS INDUSTRIES Ltd 26 March 1970 [14 March 1969] 13552/69 Headings G1Q G1J [Also in Division H2] A thermal electric meter comprises a generally U-shaped bi-metallic structure 202, 204, 205, a support 203 to which the free end of one of the arms 204 of the U is secured, a heater coil (not shown) surrounding the other arm 202 and through which a current to be measured is passed, and pointer 245 for indicating movement of the free end of the arm 202, the pointer being coupled to the arm 202 by a pin 249 secured to the free end of the arm and engaging a slot 244 in a plate portion 241 of the pointer, and a second plate portion 242 of the pointer overlying the pin 249 over the normal range of movement of the pointer to prevent removal of the pointer from its fixed pivot pin 248 except when the pointer has been forcibly moved to a position outside its normal range. The arm 204 of the bi-metallic structure compensates for ambient temperature changes. In the embodiment shown the base of the meter is formed of a plastic material and has a rigid section 255 and somewhat flexible section 260. A metal slide 215, retained on the base by a rivet 225 passing through holes 223, 220, includes the portion 203 to which the free end of bi-metallic arm 204 is secured and is adjustable longitudinally to set zero by inserting tool 265 in hole 224 in the base until its eccentric pin 263 engages slot 222 in the slide, and then turning the tool. A similar adjustable slide 216 supports the pivot pin 248. Zero-setting may be faciliated by the provision of a depression or rib 216 in the base with which the bi-metallic arms may be aligned. The dial 219 is secured by claw-end legs 209 to upstanding pillars 217, 218 on the base. Terminal bolts 239 or blades 213 may be inserted in holes 240, 212 respectively. The slight flexibility of base section 260 facilitates the fitting of the dial to the base and of the base in a casing. In a second embodiment Fig. 4-6 of the drawings accompanying the complete Specification, (not shown) metal slides 215, 216 are replaced by plastics slides (315, 316) retained on the base by claws (321, 336) moulded integrally with the base. A third embodiment is also described, identical with that described with reference to Figs.1-5 of Specification 1307522.
Patent GB-1307982-A (GB)
Title: Axial piston pumps or motors
IPC: F01B3/00
Filed: 1969-04-11
Abstract: 1307982 Hydraulic reciprocating pumps and motors R C CLERK 9 June 1970 [11 April 1969] 18641/69 Heading F1A In an axial piston pump or motor, the clearance between the rotary cylinder block 1 and the ported valve face 7 of the casing 4 is controlled by a hydrostatic bearing 5 acting between flange 10, attached to the block 1, and flange 3 of the casing 4, and a hydrostatic bearing 12 acting in opposition to bearing 5, the hydraulic supply to bearing 5 being from the high pressure port via a check valve and impedance 9, and the supply to bearing 12 being from a constant pressure source, e.g. a control circuit, via impedance 14. Springs 11 are provided between bearing 5 and flange 10. The annular area of bearing recess 8 is less than that of lands 8a bounding it, and the annular area of the corresponding recess in bearing 12 is greater than the lands bounding it.
Patent GB-1308893-A (GB)
Title: Load measuring apparatus and method
IPC: G01G19/10
Filed: 1971-01-05
Abstract: 1308893 Weighing apparatus NATIONAL RESEARCH DEVELOPMENT CORP 5 Jan 1972 [5 Jan 1971] 473/71 Heading G1W Apparatus for determining the axle loads of a vehicle uses a fluid pressure analogue loading system for a floating beam 38, the pressures in load cells A', B', C' representing the axles being a measure of the axle loads. In Fig.3, a row of pairs 1-7 of collapsible cells is mounted on a rigid platform. Each pair supports a respective load-bearing platform 29-35 and is connected by a line 28 to a respective actuator 1'-7'. The actuators are connected between a rigid support 37 and the floating beam 38, and are arranged in a sealed down representation of the configuration of the pairs of cells 1-7, so that when the cells, lines, and actuators are pressurized, the actuators apply to the beam a load pattern representing the load pattern on the surface formed by the platforms 29-35. The load cells A', B', C', between the beam 38 and a rigid support 39, are arranged in a scaled down representation of the configuration of the vehicle axles, and are pressurized and connected either to respective pressure gauges, or through a selector valve 43, to a single gauge 44. The beam 38 may be shaped or weighted to apply to the load cells a correct tare load pattern, or a spring or fluid-pressure actuator may apply the tare component to the beam, e.g. if the beam is vertical. The platforms 29 to 35 are inter-connected by flexible means. If transverse load distribution is to be considered, the cells of each pair are not inter-connected but are connected to separate actuators similarly paired to act on the beam 38, and pairs of load cells at each axle position measure the individual wheel loads. Each collapsible cell may be annular or linear. In Fig.1 nested channel members 10, 11 are interconnected by rolling seals 20, 21. A block 12 supports the platform in the case of overload or depressurization of the cell. In Fig. 5, a member 11 bears on a pressurized flexible tube 45 housed in a lipped channel 10.
Patent GB-1310940-A (GB)
Title: Thermoplastic resin blends of polysulphone and a graft derivative of a butadiene containing polymer spine
IPC: C08F279/02
Filed: 1970-06-11
Abstract: 1310940 Polysulphone resin blends UNIROYAL Inc 11 June 1970 [15 July 1969] 28347/70 Headings C3G and C3R A synthetic thermoplastic resin composition comprises a blend of (A) from 50 to 99% by weight of a linear thermoplastic polyarylene polyether polysulphone resin and (B) from 1 to 50% by weight of a polymer consisting of a spine derived from butadiene on which is grafted one or more compounds of formula where R and R<SP>1</SP> are hydrogen, halogen, alkyl, carboalkoxy or together they are an anhydride linkage, R<SP>2</SP> is hydrogen, vinyl, alkyl, alkenyl, cycloalkyl, carboalkoxy, alkoxyalkyl, alkylcarboxy, ketoxy, aryl, halogen, oarboxy, cyano or pyridyl, and n is 0 to 9. In examples polysulphones are blended with methyl methacrylate grafted on a butadiene-styrene copolymer and with styrene and methyl methacrylate grafted on a butadiene-styrene copolymer.
Patent GB-1312612-A (GB)
Title: Telescopic pipe joints
IPC: F16L21/03
Filed: 1969-05-12
Abstract: 1312612 Pipe couplings BRITISH STEEL CORP 27 May 1970 [12 May 1969] 24144/69 Heading F2G A pipe section, particularly for use in large diameter (over 600 mm.) underground pipe lines has a socket 2 of a design such that the stresses created by the surrounding earth upon the pipe-line is substantially uniform in both the socket 2 and the remainder of the pipe section. The pipe section is of a "flexible" material, i.e. one whose breaking stress is substantially higher than its yield stress, for example steel, ductile iron and aluminium. This even distribution of stress is achieved by a socket whose wall thickness in a radial direction is between 1 and 1À5 times as great as the radial wall thickness of the remainder of the pipe section 3. This provision excludes an inturned flange 6 at the mouth of the socket 2 which prevents a gasket 4 from being blown out of the joint between adjacent pipe sections by the pressure of fluid within the pipe-line. An annular rib 5 may be provided to engage with the gasket. For coupling such pipe sections 3, the opposite end 1 to the socket 2 of each section 3 requires no spigot fitting, and as shown the end 1 may be simply inserted into the socket 2 of an adjacent pipe section 3.
Patent GB-1324178-A (GB)
Title: Mounting of heads on spindles of taps or valves
IPC: G05G1/12
Filed: 1970-11-13
Abstract: 1324178 Mounting parts on shafts D J GOLDSMITH 10 Nov 1971 [13 Nov 1970] 54216/70 Heading F2U A part 1 (e.g. a handle) with a socket of non- circular (e.g. splined or square or hexagonal) section is mounted on a shaft 4 of similar section having at least one (e.g. two) annular groove 6 in which is mounted a resilient member 5 (e.g. an 0-ring), by insertion of the shaft into the socket, the member 5 being compressed to retain the socket on the shaft. The shaft may be the spindle of a tap or valve, mounted by a bearing sleeve 10 in a housing 7 with a seal 9. The insertion of the handle on the shaft may be limited by abutment at 11 or between a shoulder on the shaft 2 engaging the end of the splined socket, Fig. 2 (not shown). Typical dimensions of the parts 4, 5 and 6 are given. The handle may comprise a decorative plaque 3.
Patent GB-1326724-A (GB)
Title: Mounting of panel assemblies incorporating articles of furniture  on wl-ls and floors
IPC: A47G29/00
Filed: 1969-06-04
Abstract: 1326724 Fixing furniture to walls SLUMBERLAND GROUP Ltd 1 Sept 1970 [4 June 1969] 28262/69 Heading A4U An assembly, comprising a chest 3 and back panel 1 therefor, is mounted on a wall by the inter-engagement of sloping surfaces on a mounting strip 2 on the panel and a wall-mounted batten 5, the lower edge of the panel resting on the floor, which takes the major part of the weight, and the lower part of the assembly being secured by a screw 11 to a wall-mounted batten 8. The chest is secured to the panel by a U-shape bracket 4 having a base bar secured to the panel and horizontal arms extending through slots in the chest to be against the inside of the walls of the chest and may be secured thereto. In modifications a chest or other article of furniture, is secured to the panel by bolts having T-heads or expanding heads. The battens 2 and 8 are part of a rectangular frame having end members 7, which close the gaps between the panel and the wall, the frame being positioned on the wall by using a jig (9).
Patent GB-1330296-A (GB)
Title: Method of manufacturing carbonaceous artefacts
IPC: C08J9/24
Filed: 1969-11-14
Abstract: 1330296 Forming bodies comprising glassy carbon COAL INDUSTRY (PATENTS) Ltd 5 Jan 1971 [14 Nov 1969] 55930/69 Heading C1A A body comprising carbon of the type known as glassy carbon is formed by heating an alkaline mixture of a phenol and an aidehyde at a temperature between 250‹ C. and the temperature at which the mixture darkens or blackens because of cross-linking, to form a thermoplastic product which is ground to a fine powder, and the powder sintered and then carbonized to give the desired product. The aldehyde used may have up to three C atoms, e.g. formaldehyde, and the phenol may be a phenol possessing one hydroxy group, e.g. phenol. The temp. in the first heating stage is preferably 300-350‹ C. The finely divided powder may be compacted before or during sintering. The thermoplastic intermediate may be sintered at 250-340‹ C. The sintered product may be carbonized e.g. at 1000‹ C. in an inert atmosphere. The electrical resistivity and the stability in air on heating are given for the product.
Patent GB-1331567-A (GB)
Title: Packaging containers
IPC: B65D5/06
Filed: 1971-07-24
Abstract: 1331567 Lined cartons; packaging in cartons JOHN WADDINGTON Ltd 20 July 1972 [24 July 1971] 34837/71 Headings B8C and B8P A packaging container is formed from an outer blank case 10 and a sheet of flexible lining material 36 which is secured to the blank case so that folding of the blank case to skillet form with edges of the blank ease overlapping also folds the lining material to skillet form with its edges overlapping. The overlapping glue flap 26 and panel 12 of the blank ease are glued together and the overlapping edges of the lining material 36 are glued or heat sealed together. The ends of the container are closed by folding inwardly the triangular flaps 12A, 16A, pressing together the sections 14C, 18C of the end flaps, 14A, 18A, trapping the lining material therebetween and heat sealing the ends of the lining material, and folding over the sections 14C, 18C and 14D as shown in Fig. 6, the section 14D being glued to the carton side 18. The container may be opened by means of a tear strip 54 in the side 18 and the lining bag removed. The lining material is adhered to the blank case 10 at areas 38 and is released from the carton normally, or by the application of heat when a heat release adhesive is used. The latter operation may take place as the sections 14C and 18C are pressed together by heated rollers.
Patent GB-1335841-A (GB)
Title: Method of interconnecting parts
IPC: H01R9/16
Filed: 1971-04-19
Abstract: 1335841 Jointing; making electric switches JOSEPH LUCAS (INDUSTRIES) Ltd 19 April 1971 [5 March 1970] 10545/70 Headings B3A and B3V [Also in Division B5] A method of connecting together two parts, at least one of which 12 is made of a thermoplastic synthetic resin and has a recess 19 surrounding a shoulder 21, comprises supplying ultrasonic energy to the shoulder to cause it to flow into a groove 15 in the other part 11 which is received in an aperture 18. As applied to connecting an electrical contact 11 to the polypropylene housing 12 of a switch in which it is a tight fit, the shoulder 21 is on a spigot which fills the recess 19 and the groove 15 and leaves the base of the housing plane after the welding connection is formed.
Patent GB-1337054-A (GB)
Title: Gyroscopes
IPC: F16C25/08
Filed: 1971-10-20
Abstract: 1337054 Gyroscopes FERRANTI Ltd 19 Oct 1972 [20 Oct 1971] 48702/71 Heading G1C A gyroscope rotor for rotation on a shaft 15 comprises two axially spaced hub portions 11, 12 each carrying a bearing 13, 14 for engaging the shaft 15, and an annular rim comprising two end portions 16, 17 and an intermediate portion 18, the end portions 16, 17 being rigidly connected to the hub portions 11, 12 and inter-connected by a screw arrangement which allows resilient distortion of the intermediate portion 18. As shown, the rotor 10 which may be driven by an electric motor having a rotor 25 and a stator 24 attached to the shaft 15 and which may be supported on the shaft 15 by way of ball or gas bearings may be formed in two similar inter-fitting parts connected at a diametral plane of the rotor by inter-connected flanges 20, 21. Radially extending grooves 19, 22 provide resilience for the rim's intermediate portion 18 which accommodates with clearance a plurality of adjustable screws 23, the screws 23 being arranged at circumferentially spaced intervals around the rotor and securing the end portions 16, 17 together.