baber/WOPTO huggingface dataset:
Patent GB-1385630-A (GB)
Title: Protectors for screw and nut connections
IPC: F16B33/00
Filed: 1973-11-29
Abstract: 1385630 Nut and bolt covers DAIMLERBENZ AG 29 Nov 1973 [2 Dec 1972] 55439/73 Heading F2H A protector for a nut and bolt connection comprises a protecting portion 11 which merges by a sharp bend 12 into a hollow truncated conical securing section 13 divided by radial incisions 14 into individual tabs 15 which when pressed against a component 18 serving as an abutment for the nut 21 will be bent over at the bend 12 so that the edges 16 at the free ends of the tabs engage under the nut as at 25. As shown the protecting portion 11 is cylindrical with an outwardly extending annular flange 17 at its end remote from the securing section 13. The protector may protect the plastics insert of a self-locking nut from damage by radiant heat. The securing portion may be bent under the nut by applying a wooden block to the flange 17 and hammering or by inserting a metal tube between the nut and the inner wall of the protector to contact the securing section 13 and hammering on the tube. In a modification (Figs. 5 and 6, not shown) the protector has a protecting portion (26) of truncated pyramidal form, e.g. of square crosssection, with the securing section (30) extending inwardly into the protecting portion, which portion (26) is intended to surround the member secured by the nut, and not the nut itself.
Patent GB-1196469-A (GB)
Title: A method of and means for Ducting the Roofs of Buildings
Inventor: ROY JOHN MARSHALL
IPC: E04D13/17
Filed: 1967-12-08
Abstract: 1,196,469. Roof structures. N.R.T. MOULDINGS Ltd. 9 Dec., 1968 [8 Dec., 1967], No. 55925/67. Addition to 970,265. Heading B1W. A roof as described in Specification 970,265 with the distinguishing feature that the channel-shaped ducts are formed in the interior surface of the covering of insulating material. The covering is made up of a number of rectangular panels 10 with the channels 12 extending normal to one pair or both pairs of opposed sides of the panel or at an angle to such sides.
Patent GB-1444948-A (GB)
Title: Oscillators using a negative resistance diode
IPC: H03B9/14
Filed: 1973-12-12
Abstract: 1444948 Negative resistance diode oscillators; voltage controlled oscillators THOMSON-CSF 12 Dec 1973 [12 Dec 1972] 57688/73 Headings H3T and H3R In a negative resistance diode oscillator having a negative resistance diode such as a Gunn or avalanche diode 3, mounted in a cavity 1, 2 of a rectangular waveguide, the diode 3 is arranged in a plane P constituting a right section of the waveguide, the plane P divides the cavity into a main cavity 1 and an auxiliary cavity 2, a coupling device 5 couples an end of the main cavity 1 to an external load 6, a tuning device 9, 10 tunes the main cavity 1 and a resistive absorbent material 11 is arranged at an end of the auxiliary cavity 2 for avoiding development of parasitic oscillations in the auxiliary cavity 2. As shown the resistive material forms a matched load which absorbs electromagnetic waves propagating towards it and can be a mixture of dielectric and conductive elements or a resistive metal deposited on a short circuiting plane. The standing wave ratio of the matched load can be less than 2. The oscillator can be mechanically tuned by a cylinder 9 of dielectric material or metal movable into the cavity 1 and can be electronically tuned by a varactor diode 10.
Patent GB-1283237-A (GB)
Title: Vertical axis rotatable aerator, for aerating liquids
Inventor: KAELIN JOSEPH RICHARD
IPC: B01F3/04
Filed: 1969-11-26
Abstract: 1283237 Surface aerators for liquids J R KAELIN 26 Nov 1969 [28 Nov 1968] 57811/ 69 Heading B1C A rotatable surface aerator 2 comprises an upwardly diverging sheet with internal blades 3 having shrouds 14 forming a duct between adjacent blades having a slot of substantially constant width which enables obstructive solid matter to escape; the aerator can be rotated alternately in both directions with equal efficiency. As shown the blades have a maximum height intermediate their ends and the shrouds increase in width from the inlet 8 throughout the length of the blades. The shell may have an outer conical surface 20 and an inner convex surface 6 forming a buoyancy chamber 21 between them which may be filled with buoyant material 22. The device may be made of light alloy, glass fibre reinforced polyester resin, or other metal or plastics.
Patent GB-1443767-A (GB)
Title: Mounting of wheels on axles
IPC: B60B17/00
Filed: 1973-12-14
Abstract: 1443767 Shrink fitting ALLMANNA SVENSKA ELEKTRISKA AB 14 Dec 1973 [19 Dec 1972] 57962/73 Heading B3V Wheels, gears, clutch parts &c. 1 are mounted on an axle 3 by shrinking a sleeve 2 into the bore of the wheel &c. hub and then shrinking the assembly thus obtained on to the axle, the sleeve 2 being of a softer material than the wheel seating of the axle. The difference in hardness is to prevent cold welding of the sleeve on to the axle, so that the assembly of wheel and sleeve may be removed by pressurized air introduced into an annular groove 5 in the axle through a passage 4 in the sleeve 2. The hardness of the hub may differ from that of the sleeve.
Patent GB-1133438-A (GB)
Title: Safety overspeed control mechanism for rotary tools
IPC: B24B47/18
Filed: 1966-12-30
Abstract: 1,133,438. Stop-gear for pneumatically driven tools. CHICAGO PNEUMATIC TOOL CO. Dec. 30, 1966 [Jan. 11, 1966], No. 58359/66. Heading F1K. A rotary tool includes valve means 22 controlling flow of operating air to the motor 11, manually operable means 57 for normally selectively opening and closing the valve means and overspeed control means responsive to overspeeding of the motor for automatically closing the valve means independently of the manually operable means and simultaneously disabling the manually operable means from being operated to reopen the valve means. The tool may include a slide valve 22 controlling flow of operating air from an inlet chamber 18 to the motor, the valve having a rear head end exposed to pressure of air in the inlet chamber and having an opposite forward end exposed to pressure of air in a pressure chamber normally counterbalancing that in the inlet chamber heavy sprung means 34 normally holding the valve closed, a plunger 36 normally selectively cammable to move the heavy spring means away from the valve and carrying a light spring 38 movable with the plunger against the valve to open the valve, the valve in open condition being responsive to the pressure of air in the inlet chamber to move to closed condition relative to the light spring when relieved of the counterbalancing pressure of air at its forward end, frangible air release means 73 normally blocking relief of air from the pressure air chamber and centrifugally operable flyweight means 62 carried by the spindle responsive to overspeeding of the motor to engage and break the air release means so as to release air from the pressure chamber and as a consequence relieve the counterbalancing pressure of air from the forward end of the valve. As shown the flyweight is disposed in a diametrical bore of the spindle above the grinding wheel 13. A speed control governor may be arranged between the slide valve and the motor to maintain the speed of the motor within a predetermined range.
Patent GB-1386570-A (GB)
Title: Electromagnetic wave collectors for portable and mobile receivers
IPC: H01Q21/30
Filed: 1973-12-20
Abstract: 1386570 Aerials THOMSON-BRANDT 20 Dec 1973 [22 Dec 1972] 59237/73 Heading H4A An aerial system comprises first and second quarter-wave whip type aerials Al, A2 the base of each of which is connected by a first conductor of a respective two-conductor transmission line T1, T2 to a respective input port E1, E2 of a receiver R, the aerial A2 being designed for operation in a higher band of frequencies than the aerial A1. The base of the aerial A1 is also connected to the second conductor of the line T2 via a capacitor C1, and the base of the aerial A2 is also connected to the second conductor of the line T 1 via an inductor L1. The additional connections provide that when the receiver is switched for operation with input to the port E1 the second aerial A2 is associated with the first aerial Al, in the manner of a half wave doublet, and vice versa when it is switched for operation with input to the port E2. As described, the aerials A1, A2 are telescopic, and are for operation in respective frequency bands 40 to 220 MHz and 450 to 900 MHz. The lines T1, T2 are co-axial cables with their inner conductors directly connected to the aerials A1, A2, respectively. The outer conductors of said cables are connected together and are connected to the chassis of the receiver R via an inductor L2, to reduce interference from unwanted lower frequency signals.
Patent GB-1192760-A (GB)
Title: Improvements in or relating to Isolating Valves
Inventor: REVERDIN DANIEL
IPC: G01F23/00
Filed: 1967-12-29
Abstract: 1,192,760. Isolating valves. PRECISION MECANIQUE LABINAL. 29 Dec., 1967 [30 Dec., 1966], No. 59238/67. Heading G4H. [Also in Division F2] A valve for isolating a level measurement device 33 (Fig. 2) from a reservoir includes a bearing surface 19 on which calibrating and level checking devices are disposed. In the embodiment described in which the level measurement device is as described in Specification 1,138,245 the valve includes a horizontal surface 19 and toroidal segment 20 connected to an actuating rod 22 having a screw-threaded section 30 attached to a control member 31. When the control member 31 closes the valve, the measurement sensor 33 is lowered until it rests against a spring 32 on the bearing surface 19 of the valve. The characteristics of the spring 32 are so chosen that its reaction to the weight of the sensor is equal to the thrust experienced by the sensor dipping into a liquid reaching the level C-C. The force balance of the measuring device is adjusted to be in equilibrium when the liquid in the reservoir is at this level so that the apparatus may be checked by lowering the sensor until it rests on the spring 32 and reading the indication given by the measurement device.
Patent GB-1280613-A (GB)
Title: Collapsible shower cabinet
Inventor: GURNEY RONALD EDWIN
IPC: A47K3/32
Filed: 1970-12-17
Abstract: 1280613 Shower Cabinets R E GURNEY 17 Dec 1970 60000/70 Heading A4N A collapsible shower cabinet 10 comprises an inflatable top portion 11, a floor portion 12 and a flexible non-inflatable side wall member 13 which is connected to respective peripheral portions of the said top and floor portions and which is provided with a closable opening 16, the top portion 11 being provided with lug means by which the cabinet may be supported in use, the floor portion 12 being provided with a closable aperture 22 through which any water collected in the cabinet may be drained. The top portion 11 is an annular plastics member which when inflated assumes a toroidal shape. The floor portion 12, also of a plastics material, is provided with an inflatable peripheral portion 18, which when inflated also assumes a toroidal shape. The side wall member 13 is formed from a sheet of flexible plastics material and is heat-sealed to the top and floor portions. The closable opening 16 is in the form of a slit extending between the top portion 11 and the floor portion 12 and is closed by plastics tapes 19 which are heat-sealed on the inner face of the side wall. The top portion 11 is provided with circumferentially spaced lugs 17 having apertures 24 reinforced with eyelets through which a support cord may be passed. A shower rose (not shown) may be introduced into the cabinet through the aperture in the annular top portion 11 or through a suitable aperture, (not shown) provided in the side wall member 13.
Patent GB-1270548-A (GB)
Title: Improvements relating to carrier communications systems
Inventor: POPE GORDON JOHN
IPC: H04J1/16
Filed: 1969-12-11
Abstract: 1,270,548. Line transmission systems; transistor switching circuits. POST OFFICE. 20 Nov., 1970 [11 Dec., 1969], No. 60496/69. Headings H3T and H4R. A carrier communication system has a pilot signal transmitted as a modulation of a carrier signal to a remote point where an alarm condition is indicated when the level of the pilot signal changes without any change in the level of the carrier signal. Any change in level of the carrier signal is used to inhibit operation of a trigger circuit which normally operates when the pilot signal level changes. Normally the changes in level are cessations of the signals. In the circuit shown, the modulated carrier signal passes through filter 2 to amplifier 3 and rectifier D1 so that the pilot signal modulation passes through R2 to transistor VT1. The alternating component of this signal passes to filter 4, amplifier 5 and diode D3 where a voltage corresponding to the amplitude of the pilot signal is set up across capacitor C6 and is connected to the Schmitt trigger circuit formed by transistors VT4, VT5. An output voltage level indicating the state of the trigger is applied to the base of transistor VT6 and, on disappearance of the pilot signal, an alarm indication is derived from conductor 10. The collector output of transistor VT1 passes to capacitor C2 which absorbs the pilot signal and derives a voltage level proportional to the carrier amplitude independent of the presence of the pilot signal. Changes in this voltage level are amplified in transistors VT2, VT3 and the output of VT3 is used to operate relay 6 to indicate carrier failure. Additionally this output is amplified in transistors VT8, VT9 to operate VT7 as a switch which is closed when the carrier fails thus inhibiting operation of the Schmitt trigger circuit. The levels for operation are determined by the values of resistors chosen.
Patent GB-1246586-A (GB)
Title: Improvements in or relating to an internal-combustion engine piston
IPC: F02F3/18
Filed: 1969-12-12
Abstract: 1,246,586. I.C. engine combustion chambers. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Dec.12, 1969 [Dec,12, 1968], No.60767/69. Addition to 1,206,356. Heading F1B. [Also in Division F2] The embodiment described in the parent Specification, in which an I.C. engine piston has in the crown thereof a combustion chamber surrounded by inner and outer cooling spaces with the inner cooling space containing a heat conducting material which liquifies at a predetermined temperature, is modified in that the inner cooling space is divided into a plurality of separate compartments. The compartments are formed between a number of evenly-spaced ribs (19), Fig. 2 (not shown), on the outer surface of the combustion chamber wall and extending longitudinally with respect to the longitudinal axis of the piston.
Patent GB-1328670-A (GB)
Title: Automatic multiple spindle numerical controlled lathe
IPC: B23B3/16
Filed: 1970-12-23
Abstract: 1328670 Automatic multiple spindle lathes; bar stock lathes NIPPON SEIKO KK 23 Dec 1970 [27 Dec 1969 2 Oct 1970] 61275/70 Headings B3B and B3T An automatic multiple spindle numerically controlled lathe 102 comprises a headstock 105 carrying a plurality of work spindles and a main tool post 104 slidably mounted on the bed 103, the main tool post comprising a slide 107 a horizontal slide 108 and a vertical slide 109 constituting a tool mount supporting part, the arrangement of these slides facilitating the movement of the tool mount supporting part in three directions X, Y and Z along three axes. The tool mount supporting part 109 carries a plurality of tool mounts 112 each having a plurality of cutting tools 113, the tools in the respective mounts performing simultaneous operations on workpieces carried by the spindles which are equal in number to the tool mounts. The spindles are gear driven from a control shaft 115 by way of gears 120, 121 from a motor 119. The bar feed through the respective spindles and the actuation of the chucks are effected by piston and cylinder means 127, 128, 124, 125. The tool slides and post are all actuated by ball screws.
Patent GB-1222910-A (GB)
Title: Process for obtaining a compound laminar material
Inventor: TAPIS JOSE GUARRO
IPC: D21H27/02
Filed: 1969-12-23
Abstract: 1,222,910. Laminate. J. G. TAPIS. 23 Dec., 1969 [28 Dec., 1968], No. 62590/69. Heading B5N. A process for preparing a laminate comprises: (a) impregnating a paper web with a first resin which is then dried, and impregnating the web with a second colour controlling resin and then drying the resin; (b) coating both surfaces of a synthetic resin web with a layer of adhesive resin and drying the resin; (c) taking two paper webs treated as in (a) and applying a layer of adhesive resin to one surface of each of the webs and drying the adhesive resin, and sandwiching a synthetic resin web treated as in (b) between the adhesive coated surfaces of the paper webs; (d) pressing the triple web so formed and varnishing one surface of it.
Patent GB-668872-A (GB)
Abstract: 668,872. Spray carburetters. CARTER CARBURETOR CORPORATION. June 23, 1949, No. 16736/49. Class 7(iii) A carburetter comprises a metering needle 31 raised by a spring- loaded suctionactuated piston 26 at low-speed fullthrottle operation to admit extra fuel for preventing detonation, and a suction - actuated stop 53 which limits the movement in the enriching direction. The piston 26 is actuated by the suction below the throttle valve 15 and carries a projection 46 which co-operates with a first stop 45 carried by a pivoted member 38 actuated by a link 41 from the throttle valve and the second stop 53 is carried by a piston 51 actuated by suction at a Venturi 12. At high speed operation the piston 51 is forced down, carrying with it the needle 31 and piston 26 until the projection 46 contacts the stop 45 so that an economical mixture strength dependent upon throttle valve position is obtained. At low-speed substantially full throttle operation the suction is insufficient to actuate the pistons 26, 51 and the neeedle 31 is raised to permit the. supply of the extra fuel to prevent detonation. The suction below the throttle valve 15 at partial throttle normal speed operation is sufficient to actuate the piston 26 and restore the economical mixture strength.
Patent GB-2027465-A (GB)
Title: Curtain heading tapes
IPC: A47H13/16
Filed: 1978-07-04
Abstract: A woven curtain heading tape (10) produces a fold pattern in material to which it is attached. The tape has at least three warps. One warp is the main fabric warp, another is an elastic warp forming pockets 11, and the third is a non- elastic warp forming pockets 12. The tape is made and applied to curtain material in the tensioned state so that when it relaxes a predetermined pattern of folds is created. The wefts of the tape can be selected in size to give regions of loose and tight weave to aid folding. Folding can be regular or irregular. The elastic pockets (11) can exist at two levels of the tape and those at the lower level can be more frequent than those at the upper level. Exposed elastic threads can be provided which have parts to flatten the folds formed. <IMAGE>
Patent GB-2000469-A (GB)
Title: Mould locating and supporting mechanism
IPC: B22C17/06
Filed: 1978-07-04
Abstract: The invention relates to a mould for making refractory bricks. Four pins 15 (Fig. 2) are supported on a platform 16 carried on the end of a pneumatic piston rod 20. The upper ends of the pins 15 support a platform carrying ten vertical pins 18 extending through passages in the mould bottom plate 11. When the pneumatic piston rod 20 is fully raised the pins 18 project through the bottom plate 11 to locate and support side walls 21 of a mould. When the pneumatic piston rod 20 is fully lowered the pins 18 are retracted below the top surface of the mould bottom plate 11. The mould side walls 21 are then free to be removed outwardly of the mould, allowing a moulded and compressed brick to be freely removed from the bottom plate. The pins 18 can be replaced by a sleeve fitting around the mould for support. A vibrating pressing plunger can be used. <IMAGE>
Patent GB-2001771-A (GB)
Title: Silver Bleaching with Nitroxyl Radicals in Photothermographic Processes
IPC: G03C5/44
Filed: 1978-07-11
Abstract: A stable nitroxyl free radical comprising a heterocyclic ring including a nitrogen atom of a group = N-O &cirf&  can, if necessary in the presence of a silver complexing agent, bleach silver produced on heat-processing of a photothermographic material comprising a silver halide and, for instance a reducible silver salt, such as a silver fatty acid salt, and a reducing agent. Certain of the nitroxyl free radicals cause a direct positive image to be obtained in such a photothermographic material, bleaching an initially formed negative silver image. The nitroxyl free radicals are useful in colour photothermographic materials in which a dye image corresponding or complementary to the silver image is formed on heat-processing. For example, a corresponding dye image is obtainable by reaction of the oxidised reducing agent with a colour coupler. A dye image can be transferred at an elevated temperature by diffusion to a receiving layer carried by the same or a separate support.
Patent GB-2006489-A (GB)
Title: Arrangement for encoding and recording information
IPC: G11B20/10
Filed: 1978-09-12
Abstract: In a device for encoding and recording digital signals on a magnetic recording medium, precompensation in respect of errors which arise with high bit packing densities is effected by selectively advancing and delaying the signals. The delay or advance is obtained by presetting a counter according to the value of following and preceding signals.
Patent GB-2003438-A (GB)
Title: Vehicle washing machine
IPC: B60S3/06
Filed: 1978-09-19
Abstract: In a vehicle washing machine having a portal 1 which moves relative to the vehicle to be washed and is mounted thereon, a vertically rotatable washing brush 5 is moved to one side when the washing operation is complete by a mechanism 7, 8, 9, 10 for converting the movement of the portal to movement of the brush relative to the portal to allow the vehicle to be driven through the portal. The mechanism may include a rack and pinion moving the brush carriage 4 either directly or indirectly by pulley wires. Alternatively the mechanism has a hydraulic system or a two-armed lever pivotting about an external fixed pivot or fixed inclined stop surfaces. <IMAGE>
Patent GB-2031960-A (GB)
Title: Apparatus for measuring remanent torque in yarns
IPC: G01N33/36
Filed: 1978-10-11
Abstract: The yarn 3 is clamped at 2 and a disc 4 is suspended from the lower end of the length of yarn. The length under a pre-tensioning weight 15 is fixed by a marker 5. The disc 4 rotates due to the remanent torque and the rotations to the first change of direction are automatically measured by means of a counter circuit connected to photo-electric detectors 8 illuminated through a radial slot in the disc 4 by lamps 7. A housing 1 encloses the apparatus and prevents disturbance by air currents. <IMAGE>
Patent GB-2013451-A (GB)
Title: Indirectly controlled exchange apparatus
IPC: H04Q3/545
Filed: 1979-01-25
Abstract: In indirectly controlled tele-communications exchanges duplicate central control units (V1,V2) operate alternatively, one operational while the other is on stand-by, control stores (S1c, S2c) associated with the control units being arranged for storing semi-permanent information which can be modified by means of inputs via an operating device (B) or subscriber stations (Tn). A background store (H) is provided to store the already modified information, the control stores (S1c, S2c) are arranged to receive information respectively from the operating device (B) and subscriber station (Tn) and interchange between the stores S1c, S2c, H) of modified information takes place at least by each changeover of operational control unit (V1,V2). Modification of information for a control store may take place in duplicate, a comparison of modification results made and non-identity used to reset the modifying store with the initial information by means of the other stores as well as giving an alarm. <IMAGE>