baber/WOPTO huggingface dataset:
Patent GB-2035856-A (GB)
Title: Manufacture of tubular bodies
IPC: B23K26/26
Filed: 1979-11-26
Abstract: A process for manufacturing a tubular body, particularly for preserved food cans, comprises the steps of rolling up a metal sheet so as to engage opposite edge portions together, welding the edge portions of the sheet and subjecting the tubular body to radial expansion. The process can either be continuous or may be carried out on sheets each of a length corresponding to a separate tubular body. <IMAGE>
Patent GB-2035914-A (GB)
Title: Utility vessel
IPC: B65D88/12
Filed: 1979-11-26
Abstract: A roll-on roll-off container, is adapted to float in water, the upper surface of the container being formed as a deck with means for access to the interior of the container. The container is provided with equipment appropriate to the intended utility. Containers adapted and equipped for fire-fighting, as ambulances, as receptacles for aqueous rubbish, and for substances and liquids dangerous to the environment are described. The container may be towed or may be self-driven when water-borne. It can be carried on land by a container vehicle from which it can be launched at an appropriate place. Launching is facilitated by rollers 24 on the vehicle cooperating with longitudinal rails 22 on the container. <IMAGE>
Patent GB-2066537-A (GB)
Title: Fire, temperature or heat detector
IPC: G08B17/06
Filed: 1979-12-28
Abstract: A fire, temperature or heat detector comprises a cable having at least two conductors separated by insulation whose electrical characteristics vary with temperature, and means connected to the conductors of the cable for detecting variations in the electrical characteristics of the insulation. The cable is connected in parallel with a padder resistance and forms one arm of a bridge circuit. The insulation is a non-doped polyimide resin. <IMAGE>
Patent GB-2040101-A (GB)
Title: Method of fabricating printed ciurcuits
IPC: H05K3/42
Filed: 1979-06-30
Abstract: Printed circuits are fabricated by first providing an insulated substrate (12) having an adhesive layer (11) mainly composed of diene synthetic rubber with a roughened surface. The roughened surface (11a) of the adhesive layer (11) is then subjected to a corona discharge treatment, being followed by forming conductive patterns (14, 23) onto the surface of the adhesive layer (11) by chemical plating, thereby forming a printed circuit.
Patent GB-2072294-A (GB)
Title: Machinery covers
IPC: B23Q11/08
Filed: 1980-03-25
Abstract: A cover 10 for a machine tool slideway is formed from a flexible outer sheet (e.g. PVC) folded in convoluted fashion to provide V-shaped valleys having flanks (13a) which are reinforced by strips (14) and there are stiffening ribs (15) in some or all of the valleys, the ribs (15) and strips (14) being formed from a single sheet of relatively rigid plastics material (e.g. polypropylene). <IMAGE>
Patent GB-2044611-A (GB)
Title: Till guard
IPC: G07G1/00
Filed: 1980-03-26
Abstract: The guard includes side barriers each of which, in use, projects from the till body in the direction of opening of the drawer so as to prevent direct side access to at least the rear of the drawer when fully open and a top barrier extending between the side barriers across and directly above at least the rear of the open drawer. Inwardly directed flanges 25 may be provided, each having key-hole slots 26 for receipt of tapped screws 27 and a latch member 30 with a slot 31 for engaging a screw shank to restrain sliding movement of the guard. The key-hole slots and latch may alternatively be provided on the side frames for engagement of screws or studs projecting from the till body 16. <IMAGE>
Patent GB-2078354-A (GB)
Title: Low-voltage pump apparatus for a domestic shower
IPC: F24D17/00
Filed: 1980-03-28
Abstract: The pump 8 is driven via a safety transformer or transformer/rectifier 9 fitted with a switch. Such apparatus increases the head of water in a domestic hot water system to a value sufficient to supply a shower. The pump and transformer/rectifier are fitted to the hot water piping 5, 6 of the hot water system, the transformer/rectifier being secured to a pipe of suitable size by means of special clamps on the rear, Figure 2 (not shown), in a position most convenient to the user. Typically the pump and trans./rect. will be fitted in the linen cupboard and switched on when a shower is required. <IMAGE>
Patent GB-2046706-A (GB)
Title: Upright for lift truck
IPC: B66F9/20
Filed: 1980-04-02
Abstract: A truck upright having a fixed upright section (20), three or more telescopic upright sections (24, 28, 32), and a load carriage (36) mounted e.g. on section (32). An asymmetric lift piston-and-cylinder assembly (80) is located adjacent one side of the upright and is operatively connected at its upper end to a first telescopic upright section (24) for operating first lifting chain structure (94) which is arranged as shown to lift section (28). A third telescopic upright section (32) on which is mounted the load carriage (36) is itself mounted for elevation relative to the second telescopic section (28). Second lifting chain structure (110, 112), is secured at one end to the third telescopic section (32) and at the other end to the first telescopic section (24). A second piston-and-cylinder assembly (60) is mounted on inner section (32) for elevating thereon the load or fork carriage (36), a third lifting chain structure (72) having one end connected to the load carriage (36) and the other end connected to the third telescopic section (32). <IMAGE>
Patent GB-2050482-A (GB)
Title: Improvements in or Relating to Supporting Jacks
IPC: E21D23/06
Filed: 1980-04-16
Abstract: A mine roof support is provided with a cantilevered, roof cap (8) which may be pressed against the roof of the mine. A fore-cap (12) is hinged on the front edge of the roof cap (8) by a horizontal pivotal axle (11) and can be pressed by a cylinder unit (13) against either the roof or the face (22). The cylinder unit (13) is joined by a pivoting link (20) to the roof cap (8) and by a connecting link (20) to the fore-cap (12). The geometric arrangement of the link mechanism is such that the fore-cap (12) can be retracted by the cylinder unit (13) into a position situated below the roof cap (8) and turned through 180 DEG  in comparison with its position when pressed against the roof. <IMAGE>
Patent GB-2058482-A (GB)
Title: Improvements in or relating insulators especially for use at radio frequencies
IPC: H01T13/38
Filed: 1980-07-10
Abstract: Such insulators are frequently made of ceramic and glazed. Glazes have an affinity for water and readily hold a thin but electrically conducting film on their surface. In conditions of high humidity rain or sea spray these insulators lose much of their performance. It is the purpose of the present invention to impart to ceramic insulators water repellent properties by a thin coating of polytetrafluoroethylene (PTFE). Similarly the external ceramic body of sparking plugs suffers a deterioration of performance in humid conditions and such plugs also perform better when coated with polytetrafluoroethylene on their outer insulating surface. Other applications are exemplified (e.g. an r.f. capacitor (Fig. 6, not shown)). <IMAGE>
Patent GB-2057497-A (GB)
Title: Tanning Process
IPC: C14C3/02
Filed: 1980-08-29
Abstract: Skins or hides are tanned by drum tanning with a vegetable tan and simultaneously or thereafter tanning with an aluminium compound. Mimosa extract, condensed or catechol tanning and wattle tanning may be used as the vegetable tanning agent and aluminum sulphate as the aluminium compound.
Patent GB-2084915-A (GB)
Title: Apparatus for expanding metallic strip
IPC: B21D31/04
Filed: 1980-10-09
Abstract: Apparatus for expanding metallic strip inwardly from its edges to leave an unexpanded selvedge at each edge e.g. in the manufacture of a battery plate, includes a lower fixed expander block whose edges converge in the direction of movement of the strip. An upper reciprocable expander block carries two lines of expander punches whose cutting edges cooperate with the edges of the fixed block to cut and expand those portions of the strip which extend over the edges of the fixed block. Feed means incrementally advances the strip through the apparatus. The cutting edge and underside surface of the upstream punch 20', and preferably the adjacent punch also has a rounded portion 18'. This reduces the distortion to which the selvedges are subjected thus facilitating their bending and reducing the incidence of broken mesh strands. <IMAGE>
Patent GB-2062181-A (GB)
Title: Non-return valves
IPC: F16K15/14
Filed: 1980-10-13
Abstract: A non-return valve comprises a valve body 1 which supports the upstream end of a valve closure means 2 formed by a sleeve of flexible but impermeable material. Closure support means 3 of a skeletal structure are positioned within the valve closure means 2. Forward flow through the valve is relatively unimpeded, but reverse flow causes the valve closure means 2 substantially sealingly to collapse upon the closure support means 3. In one of the principal applications of this non-return valve, the valve body 1 is the efflux duct of a fan. <IMAGE>
Patent GB-2061437-A (GB)
Title: Joining Lengths of Flexible Ducting
IPC: F16L31/00
Filed: 1980-10-22
Abstract: For joining helically reinforced flexible ventilation ducting, the lengths of ducting 10, 11 are formed with male and female ends, each female end having a band 20 secured along one of its side peripheries around the ducting inwardly from an end ring 17. The band 20 fits over the male end and has a peripheral cuff 22 containing a steel wire 23 which can be tightened by a capstan 26 (Figure 4) to tighten the cuff 22 behind an end ring 16 on the male member. <IMAGE>
Patent GB-2066411-A (GB)
Title: Mechanism for Coupling Two Shafts
IPC: F16H1/00
Filed: 1980-12-19
Abstract: A mechanism for coupling two shafts comprises an internal gear (6) disposed between a shaft (2) and an operating shaft (1), a pinion (4) and a pinion (3) fitted to the shaft (2) and the operating shaft (1), respectively, the pinions (3) and (4) being connected, through respective link members (8) and (9), to opposite ends of a center shaft (7), and the pinions (3) and (4) being in mesh with the internal gear (6). With this arrangement, the distance (D) between the fixed shaft (2) and the operating shaft (1) may be varied. <IMAGE>
Patent GB-2091383-A (GB)
Title: Braking valve
IPC: F15B13/01
Filed: 1981-01-21
Abstract: The body 11 of a braking valve comprises chambers 12, 13 and 17, and encloses a blocking component 16 and a governing piston 18. The diameter 28a of the bore 22 in which slides the governing piston 18 at the rear of the chamber 13 is equal to the diameter 22a of the line along which the truncated conical bearing surface 22 of the blocking component 16 comes into contact with a seat 15 situated between the chambers 12 and 13. The pressure in the chamber 13, connected to an outlet of a distributor, thus has no effect on the balance position of the blocking component 16. The valve may be used to hold a raised load in case of a breakage in a hydraulic circuit. <IMAGE>
Patent GB-2100022-A (GB)
Title: Photosensitive material holder for large format camera
IPC: G03B17/32
Filed: 1981-01-23
Abstract: An adaptor for insertion in the film holder of a large format camera has two opposed windows positioned adjacent one corner and between which photosensitive material is received. The adaptor is symmetrical so that it can be inserted with either window facing the camera. This feature, combined with rotating the camera back between the vertical (portrait) and horizontal (landscape) format enables any one of the four quadrants of the image to be exposed onto the material. The image is therefore evaluated without any alteration in camera position, focussing, or interchange of camera back on slide carrier. <IMAGE>
Patent GB-2072443-A (GB)
Title: An earth fault detector
IPC: G01R27/18
Filed: 1981-02-23
Abstract: A resistance detection module 7 is provided for measuring the resistance of the loop formed between the earth 9 and a pilot conductor 8 in an electrical supply through an earth leakage circuit breaker 2 to give protection in the event of incorrect connection of the breaker and/or the existence of an imperfect earth connection on the apparatus being supplied. The module 7 operates relay contacts 10 when the current in the earth/pilot loop reaches a certain threshold value due to an increase in resistance in the loop. Operation of the contacts 10 simulates an earth fault to open the circuit breaker 2. <IMAGE>
Patent GB-2072971-A (GB)
Title: System for operating a synchronous electric motor fed with an A.C. voltage
IPC: G05D23/19
Filed: 1981-03-20
Abstract: The present invention relates to a system for operating a synchronous electric motor fed with a.c. by the application of voltages of different magnitude, particularly of 220 V and 24 V. It is an object to operate the circuit with these voltages without change. This is accomplished in that a capacitor (8) is connected in series with and a glow lamp (11) is connected in parallel to the motor (10). A fuse (9) is connected in parallel to the capacitor (8).   The subject matter of the application can preferably be used in room thermostats provided with a timer. <IMAGE>
Patent GB-2077862-A (GB)
Title: Fuel Pumping Apparatus
IPC: F02M59/44
Filed: 1981-03-24
Abstract: A fuel pumping apparatus includes a plunger 12 reciprocable within a cylinder 11. A pair of axially spaced grooves 17, 18 are formed in the wall of the cylinder and are connected by passages 19, 20 respectively to a fuel inlet 14. A fuel outlet communicates with one end of the cylinder and ports 13 communicate with the fuel inlet so that fuel can flow to the one end of the cylinder. The passage 20 which communicates with the groove 18 which is furthest from the one end of the cylinder includes valve means 21 so that communication of the groove 18 with the inlet can be broken. This enables the plunger to be adequately lubricated when different types of fuel are used, both grooves being connected to the inlet when heavy fuel is being used. <IMAGE>
Patent GB-2072914-A (GB)
Title: Gaming machines
IPC: G07F17/34
Filed: 1981-03-30
Abstract: A gaming machine of the kind in which a game is initiated by insertion of a coin into the machine and operation of a starting button whereupon three reels each carrying a group of symbols are rotated and arrested in random positions so that a random combination of symbols, one from each group, is displayed on a winning line, the player winning in the event of this combination being any one of a number of predetermined combinations. The machine has a special gampling feature provided by electronic control means which are brought into operaton on randomly selected occasions to cause the reels in a randomly selected order to each turn in one or the other direction determined at random so that a number of its symbols are brought in succession to the winning line, and "hold" buttons associated with the respective reels and each operable to hold any selected symbol of its reel on the winning line.
Patent GB-2078738-A (GB)
Title: Benzothiazine derivatives
IPC: C07D213/73
Filed: 1981-06-17
Abstract: N-(6-halogeno-2-pyridyl)-3,4- dihydro-2-methyl-4-oxo-2H-1,2- benzothiazine-3-carboxamide 1,1- dioxides are described. These compounds are characterized by a low degree of toxicity and a low incidence of gastric disorders and useful as anti- inflammatory agents.
Patent GB-2078986-A (GB)
Title: Method and apparatus for controlling exposure time for photosensitive materials in consideration of reciprocity law failure
IPC: G03B7/091
Filed: 1981-06-24
Abstract: In a process camera in which variation in required exposure time caused by variation of the photographic conditions such as reproduction scale, diaphragm opening size, and highlight density value, is corrected according to an operational equation when the reciprocity law of the photosensitive material holds good. The present method corrects the reciprocity law failure of the photosensitive material by inserting a correction factor or factors predetermined in the operational equation, thereby determining a proper exposure time. <IMAGE>
Patent GB-2087148-A (GB)
Title: Composite conductor structure for semiconductor devices
IPC: H01L29/78
Filed: 1981-11-03
Abstract: In a semiconductor integrated circuit device the conductive layers forming interconnecting lines are of three- layer construction consisting of a polycrystalline silicon layer (541), a silicide layer (551), of silicon and a refractory metal formed on the polycrystalline silicon layer, and a refractory metal layer (561), formed on the silicide layer. The refractory metal may be molybdenum, titanium tantalum, or tungsten. The polycrystalline layer is formed by a CVD method, the silicon and refractory metal layer is formed by a co-sputtering method, and the refractory metal layer is formed by sputtering. The gates (542, 552, 562) of MISFETs present in the integrated circuit are made in the same way and of the same materials as the interconnecting lines. A dynamic RAM using such a three layer construction for word lines is described. <IMAGE>
Patent GB-2091121-A (GB)
Title: Separation of gas mixtures
IPC: B01D53/047
Filed: 1982-01-14
Abstract: In a pressure swing adsorption process typically for the separation of oxygen from air relatively low power consumption can be achieved with smaller beds than those used in conventional plants by using zeolite molecular sieve of particle size less of 0.4 to 3 mm and operating a cycle of passing air through each bed; venting the bed; purging the bed with product oxygen, and raising the pressure of the bed with product oxygen. Furthermore, a short, as compared to conventional processes, cycle time is employed (up to 45 secs). There are typically two beds operating such cycles 180 DEG  out-of-phase with one another, the purge gas and pressuring gas for one cycle being taken from the other cycle. In the venting, purging and pressurising steps the flow of gas is in the opposite direction to the flow of air through the bed. The difference in pressure between the feed pressure and the average pressure of the product gas (before any compression thereof) is less than R x 48 kPa m<-1> where R is the height of each bed.
Patent GB-2093165-A (GB)
Title: Fluid flow control valves
IPC: F16K5/04
Filed: 1982-02-15
Abstract: A fluid flow control valve comprising a body having a cylindrical chamber and defining inlet and outlet ports for the chamber, and a valve member rotatably mounted in the chamber which carries a flexible seal for covering one of the ports and which, in an "open" position, allows fluid to pass through the chamber from the inlet to the outlet port and which, in a "closed" position, prevents flow through the chamber, the seal being shaped to allow fluid pressure at the port to be sealed to urge the seal into close contact with the chamber wall adjacent the port and thereby close the port. <IMAGE>
Patent GB-2115374-A (GB)
Title: Marking out workpieces
Inventor: HEWITT RICHARD PAUL
IPC: B25H7/00
Filed: 1982-02-17
Abstract: A sheet 1 comprises a strip of separable portions 2 each of which carries a marked-out pattern 6, 7 on one surface 3. An adhesive backing is provided on the other surface 4 of the sheet whereby the portions 2 can be adhered to workpieces and the marked-out patterns thereon used for subsequent work operations. The sheet 1 may be transparent. <IMAGE>
Patent GB-2097381-A (GB)
Title: Method and apparatus for preheating glass-making ingredients before charging them into a glass-making furnace
IPC: C03B3/02
Filed: 1982-04-15
Abstract: In order to preheat glass-making ingredients before charging them to a melting furnace, the materials are gently and only slightly moved and during their movement are exposed to a flow of hot gas derived from the melting end of the furnace, the gas flowing at a low speed. This technique enables the materials to be preheated in a loose state, that is without briquetting them, without causing segregation. Apparatus for effecting the preheating comprises a casing 3 having a hot gas inlet 7 at its bottom and a gas outlet 7 at its top. A shaft 1, which rotates at 0.5 r.p.m., extends through the casing and carries pans 2. The material to be preheated enters the casing through an inlet 13 on to the top tray 2. It is then caused by strippers 12 and funnels 4 to trickle downwards from pan to pan in countercurrent to the hot gas flow to an outlet 18 whence it is discharged to the furnace. <IMAGE>
Patent GB-2118973-A (GB)
Title: Electrical connector and manufacture thereof
Inventor: PATHMANABAN SUBRAMANIAM
IPC: C25D7/00
Filed: 1982-04-27
Abstract: A method for the connection of a metallic connector, the connector including a metallic member having a plurality of holes through a thickness of the member, to a metallic surface in order to provide an electrical contact between the connector and the surface, the method comprising the steps of: (a) assembling and maintaining a surface of the member and the metallic surface in close proximal contact; (b) arranging the asembly as a first electrode in an electroplating cell, the electroplating cell having a second electrode of a first metal and an electrolyte having in solution cations of the first metal; and (c) passing a pulse current through the electroplating cell in a direction at least between the second and the first electrodes such that electrodeposition of atoms of the first metal occurs on the assembly, and substantially preferentially at surfaces which define the holes in the member, such that the member and the metallic surface become connected via a layer of the electrodeposited atoms.
Patent GB-2099235-A (GB)
Title: Electrically-operable actuator
IPC: G05D3/12
Filed: 1982-05-18
Abstract: A control system for controlling the position of a movable element, e.g. a flap valve in a vehicle heating and/or ventilating system, includes a miniature electric-motor driven actuator having a linearly displaceable and reciprocable output member (17) for coupling to the element, and electrical circuit means for controlling operation of the actuator motor (110) and thereby position of the element. The member (17) is displaced axially within a bore (117) by the motor (110) through a reduction gear arrangement (112) disposed in a space intermediate two parts (113 and 115) of the actuator housing and having a rotatable output gear (132) surrounding the member (17) which is journalled in the part (115) and which drivingly engages the member (17) by means of co-operating screw-threads. Circuits described energise the motor for a predetermined duration in response to switch actuation (Figure 2, now shown), de- energise the motor on reaching a predetermined level of monitored current such as when the motor stalls at end of travel, (Figure 3, not shown), and circuit for positioning member 17 in accordance with the position of a manually- operable element (Figures 4, 5, not shown). <IMAGE>
Patent GB-2100021-A (GB)
Title: Fluid level indicator
IPC: G01F23/292
Filed: 1982-06-04
Abstract: A fluid level indicator for fluid level detection using laser beam interferometry. The indicator comprising a tube (1) for vertical arrangement in a fluid whose level is to be monitored, a reflector (5) arranged for movement longitudinally of the tube for reflecting a laser beam transmitted to the reflector (5) from the top of the tube and a float member (6, 6a) movable with the fluid, for moving the reflector (5) in response to fluid level changes. The reflector may be mounted on the float member in the tube which is provided with one or more inlets for the fluid or on a disc in a sealed tube which is moved with the float on the outside of the tube through magnetic attraction. <IMAGE>