baber/WOPTO huggingface dataset:
Patent GB-1483523-A (GB)
Title: Omega-amino alkenoic acids
IPC: C08G69/08
Filed: 1974-07-11
Abstract: 1483523 Unsaturated polyamides SNIA VISCOSA SOC NAZIONALEINDUSTRIA APPLICAZIONI VISCOSA SpA 11 July 1974 [11 July 1973] 23494/76 Divided out of 1483521 Heading C3R [Also in Division C2] Saturated and unsaturated polyamides are prepared by the condensation of an omegaamino alkenoic acid (8-12 C) by heating. Examples describe the treatment of 12-aminot,t-4,8-dodecadienoic acid and 12-aminododecanoic acid and 8-amino-octanoic acid. Unsaturated polyamides may be reduced to the corresponding saturated polyamide.
Patent GB-876609-A (GB)
Title: Hydraulic couplings
Inventor: MONTGOMERIE GEORGE ALAN
IPC: F16D31/04
Filed: 1959-07-09
Abstract: 876,609. Hydraulic couplings. SERCK RADIATORS Ltd. June 27, 1960 [July 9, 19591, No. 23586/59. Class 69 (2). [Also in Group XXVII] An hydraulic coupling comprises a stationary housing c which supports a pump a having coaxial input and output shafts g, k and has a passage p interconnecting the inlet and outlet of the pump, and an adjustable valve q in the passage actuated by temperature-responsive means u to control the rate of circulation of liquid through the pump. The pump consists of gears i<SP>1</SP>, i<SP>2</SP>, i<SP>3</SP> secured to spindles ml, m<SP>2</SP>, m<SP>3</SP> carried in sleeves n<SP>1</SP>, n<SP>2</SP>, n<SP>3</SP> having small axial movement in bores in the pump body, the gear il being secured to the output shaft k; additional gears may be arranged in engagement with the gear i<SP>1</SP>. The passage p connected to the inlet and outlet of the pump contains a slidable valve q urged by a spring s against the temperature-responsive means u in a chamber t; the means u may be a capsule of wax or other substance which will expand under the action of heat. The coupling may be employed to drive the fan of the cooling system of an internalcombustion engine, the liquid in the system being connected by pipes to the chamber t. When the liquid is cool, the valve is positioned to permit circulation of liquid through the pump so that the shaft k driving the fan is stationary or rotates only slowly. As the temperature of the liquid rises, the expansion of the capsule u moves the valve q against the spring to restrict the circulation so that liquid pressure in the pump rotates the shaft k and fan. The body a of the pump is formed with a portion e which extends into a chamber f in the housing c supplied with liquid pressure from the pump to urge the body a against the end wall d of the housing. Liquid pressure also acts on the ends of the sleeves n<SP>1</SP>, n<SP>2</SP>, n<SP>3</SP> to urge the end faces of the gears against the end wall d. The pump is replenished' with liquid from a chamber w.
Patent GB-1115431-A (GB)
Title: Improvements in peak-detectors
IPC: G01S13/935
Filed: 1965-06-02
Abstract: 1,115,431. Peak voltage detectors. NORTH AMERICAN AVIATION Inc. June 2, 1965 [June 4, 1964], No. 23587/65. Heading G1U. A peak detector providing an output representing the maximum deviation of an input applied at 14 in one sense from a datum, or if the input is solely in the other sense, the minimum deviation from the datum. incorporates a summing network 10 which sums the input and output of the detector, and a half wave rectifier 19 coupling the input to an integrating circuit 18 via an inverting amplifier 20 in such a way that only signals of a given polarity are integrated to provide the detector output. Independently operated clamping circuit 26, 22 are connected to the summing and integrating circuits respectively to restore the outputs thereof to predetermined reference levels. The detector may be used in conjunction with a terrain avoidance radar to respond to peaks in the output from such a system. Each radar pulse is initiated by a trigger, which is also applied to the circuit 28 to produce a pulse after a delay time set by unit 30 to render the detector operative, by removing the earth connection to the junction 13 for the time during which the returned radar signal is received. The integrated output (waveform 39) and the input to the detector 35 are summed for the gating period to form waveform 37. This is passed via emitter follower 16 to clamp circuit 19, to derive the waveform 38. This is amplified and inverted before being passed to the integrator 18. The integrator is initially charged to a positive voltage in response to the system trigger, which closes switch 23 for a short period to raise capacitor 18 to a constant positive reference. Thereafter, in response to the inverted waveform 38, the integrator output takes the form shown in waveform 39. The steady negative signal between operating periods represents the peak waveform being detected. The system may be used to provide an observable output for manual control of e. g. an aircraft or may be used to control an autopilot. In such a control system, the output from the detector shown is filtered and passed through a low pass filter to a second similar detector which is gated in accordance with a required azimuth range so that only peak signals in the range are detected. The detected signals are passed to the autopilot. Conventional transistorised circuitry for use as the detector is described, Figs. 5 and 6 (not shown).
Patent GB-340576-A (GB)
Title: Improvements in means for casting large concrete objects
IPC: B28B1/087
Filed: 1929-08-01
Abstract: 340,576. Shaking moulds for casting concrete. MOORE, W. L., Huddart Parker Building, Post Office Square, Wellington, New Zealand. Aug. 1, 1929, No. 23624. [Class 87 (ii).] Moulds for the production of large concrete castings, e.g. telegraph poles, are vibrated by mounting the mould on flexible supports placed on a solid bed. The flexible supports comprise receptacles 4, which are inflated by air, water or other fluid supplied through a pump connection 7, to lift the mould 1 clear of supports 2. A crank operated vibrator 9 is then started to vibrate the mould.
Patent GB-174389-A (GB)
Title: Process for treating hydrocarbons
Filed: 1920-08-12
Abstract: 174,389. Stephens, A. J., (Canadian- American Finance & Trading Co., Ltd.). Aug. 12, 1920. Hydrocarbons, distilling and cracking.-Hydrocarbon vapours obtained by distillation, destructive or otherwise, are condensed under pressure, the conditions being designed to produce as much hydrogenation as possible. For this purpose the vapours are condensed at, or a little below, the dewpoint corresponding to the pressure at which condensation takes place. The higher the pressure the further the temperature may depart from the dew-point, but the difference must always be small. The vapours may be treated in a number of apparatus in series to isolate different constituents. The hydrocarbons are vaporized in a boiler 1 and the vapours are compressed by a pump 2 and condensed in a condenser 3, a pressure-regulating valve 10 being interposed. The uncondensed vapours are separated from the condensate by a trap 8 and escape by a pipe 9, being, if desired, treated in a second apparatus. The condensate passes through a second pressureregulating valve 11 to a receptacle 4. The process is applicable to vapours produced in gas retorts, coke ovens and shale retorts, or by distillation under pressure or vacuum or by contact - with superheated steam or gas.
Patent GB-150307-A (GB)
Title: Improvements in or relating to devices for sharpening razor blades
IPC: B24D15/08
Filed: 1920-08-13
Abstract: 150,307. Kirsten, F. Aug. 21, 1919, [Convention date]. Stropping-apparatus.-In a device for sharpening double-edged razor blades of the kind in which the blade is situated between two rotary sharpening-rollers and is oscillated to contact with these, the rollers are driven at a high speed through gearing operated by a cord &c., and the bladeholder has a friction element engaging the driving- wheel of the gearing with adjustable pressure; the blade-holder is reciprocated axially during sharpening. The sharpening-rollers 10, Fig. 5, of wood, leather, stone, &c., are rotatably mounted on shafts 9 held in a U-shaped frame 1 by catches 8, and carry toothed pinions 6 engaging a large toothed wheel 5 mounted on a drum 3, Fig 4, rotatably mounted on a shaft 2. The drum has wound thereon a cord 4, the ends of which are alternately pulled; helicoidal grooves may be formed on the drum to guide the cord. The mechanism for oscillating the blade consists of a shaft 11 journaled between the rollers in one side of the frame, and connected by a strap 12 to a slotted tube 19 ; on the outer end of the shaft 11 is an arm 13 carrying a leather pad 16 in a tubular holder which moves in an arcuate slot in the frame 1. The pad 16 engages with the wheel 5, the changes of rotation of which oscillate the arm 13, the shaft 11, and the blade-holder. The pressure of the pad on the wheel is adjustable by means of a screw 18 acting on a spring 17 interposed between it and the pad. The blade 23 is held by a holder 21, Fig. 6, adapted to be slid into a slotted tube 20 movable longitudinallv in the tube 19. The drum 3 is screwed at 27 and has engagement with a nut 28 having a projection 29 surrounding the tube 19 and connected to the tube 20 by means of a pin 30 secured to this. In operation, on pulling the ends of the cord, the rollers rotate through several turns in opposite directions alternately, the blade being swung over by the frictional contact of the wheel 5 and the pad 16, and during the rotation of the rollers the blade is moved bv the nut 28, longitudinally of the rollers. By the employment of the gearing described, the blade edges do not always make contact with the same parts of the rollers, the whole surface of which is utilized.
Patent GB-629716-A (GB)
Title: Improvements in or relating to integrating apparatus
IPC: G06G7/188
Filed: 1947-08-29
Abstract: 629,716. Energy and quantity meters. SANGAMO WESTON, Ltd. Aug. 29, 1947, No. 24019. Convention date, Dec. 10, 1946. [Class 37] [Also in Groups XXXVII and XL (b)] In photo-electric photo-metric integrating apparatus of the oscillating coil type disclosed in Specifications 538,160 and 538,578, a pair of valves 7, 7<SP>1</SP>, triggered alternately, operate the oscillations counter B and the polarity reversing switch 2 in the coil input circuit. With momentary closure of starting key 36, relay 37 operates and locks at a, switches on at c the photographic process lamps and applies as b closes anode potential to valves 7, 7<SP>1</SP>. Photocell 1 is activated by the process illuminant and contact arm 4 moves with coil 3 and engages for example fixed contact 5 to apply a trigger pulse to the grid of valve 7 whereby relay. 14 operates and reverses switch 2 and contact arm 4 swings to opposite end contact 5<SP>1</SP>. Valve 7 is then blocked coincident with triggering of valve 7<SP>1</SP> so that relay 14 falls, the coil current reverses, relay 14' operates to reverse switch 2<SP>1</SP> and a D.C. pulse is applied to stator winding 21 of synchronous motor counter M. When the contact arm 4 returns to contact 5 relay 14<SP>1</SP> de-energizes and a D.C. pulse of opposite polarity is applied to stator winding 21. Therefore as coil 3 oscillates at a speed proportional to the current input rotor 20 of synchronous motor M rotates in step with the coil oscillations and drives pointer 30 along scale 31 graduated in light value/time units, for example foot-candle/seconds. A manuallyadjustable shaft 39 carrying a pointer 40 cooperating with a scale 41, graduated as scale 31, also carries a switch 38 inserted in the locking circuit of relay 37. If pointer 40 is pre-set to a desired registration, pusher arm 42 on the synchronous motor shaft 29 opens the switch 38 when this registration is attained on scale 31, thus relay 37 falls to open the lamp load circuit and disconnect the valves 7, 7<SP>1</SP> from anode battery 11. To re-set the apparatus. key 34 is momentarily depressed to energize relay 26 which locks at a and via b applies A.C. from source 28 to synchronous motor " reverse " winding 22 and simultaneously disconnects " forward winding 21. When pointer 30 reaches zero a switch arm 32 on the synchronous motor shaft opens switch 33 in the holding circuit of relay 26, thus disconnecting the " reverse " winding 22 and re-connecting the " forward winding 21. The anode voltage impressed on contact arm 4 is relatively high, for example, 100 volts, so that electrostatic attraction insures reliable contact closures at low light intensities on photo-cell 1. With reversal of the valve circuit a small current surge is injected into the coil 3 through resistor and condenser 18, 19 to insure free separation of the contacts.
Patent GB-1102731-A (GB)
Title: Improvements relating to soil testing devices
Inventor: BEGEMANN HEINRICH KARL SIMON P
IPC: E02D1/02
Filed: 1965-06-08
Abstract: 1,102,731. Testing the hardness of soil. STICHTING WATERBOUWKLINDIG LABORATORIUM. June 8, 1965, No.24125/65. Heading G1S. In a soil testing device for separately and directly measuring the core and frictional resistances applied by the soil to a pile or the like, there is provided a tube 1, at one end of which a conical tip 6 is mounted by a first force meassuring means 5, a jacket 10 coupled to the tube by a second force measuring means e.g. a rod 13, which is positioned between the seatings 12, 15 of respective bridge pieces 8, 16, bridge piece 8 extending through a slot in the tube 1 to abut the jacket 10. O-rings 17, 18 are provided to seal the jacket with respect to the tube on either side of the slot. The force measuring means may include electrical strain gauges the leads of which extend through a central bore of the device. An extension tube 4 may be screwed into the main tube 1 at 3. The device may also be provided with electrodes for measuring the conductivity of the soil.
Patent GB-1066451-A (GB)
Title: Improvements in or relating to universal joints
Inventor: CULL WILLIAM
IPC: F16D3/224
Filed: 1964-06-11
Abstract: 1,066,451. Universal joints. BIRFIELD ENGINEERING Ltd. June 3, 1965 [June 11, 1964], No. 24203/64. Heading F2U. In a constant-velocity ratio universal joint of the type comprising balls 6 engaged in race grooves 2, 5 in part-spherical outer and inner members 1, 4 formed on or connected to shafts 3, 14 respectively, the balls 6 being located in apertures in a part-spherical cage 7 positioned between the members 1, 4, a stop is provided to limit the extreme joint angularity and thus prevent the shaft 14 engaging the open-ended ball grooves 2 in the outer member 1 and thus locking the joint. As shown, the lock stop comprises a cylindrical surface 15 in the outer member 1 which is engaged by a chamfer 16 on the shaft 14 at maximum safe joint angu- 'larity. In Fig. 2 (not shown), a stop plate 17 at the outer end of the outer member has a tapered bore 18 which serves to engage and limit safe movement of the shaft 14.
Patent GB-1145202-A (GB)
Title: Improvements in devices for holding travellers for use on rings of ring twisting, doubling and like frames
Inventor: EADIE PETER
IPC: D01H17/02
Filed: 1966-05-31
Abstract: 1,145,202. Packaging spinning travellers. EADIE BROS. & CO. Ltd. 19 May, 1967 [31 May, 1966], No. 24209/66. Heading B8C. [Also in Division D1] A strip of plastics material on which travellers are to be mounted has one end formed to retain travellers on the strip but deformable to allow dispensing of a traveller. The end may be of fish-tail shape, or may have a protuberance pressed out of the surface or a tongue cut from the strip. The other end of the strip may be provided with an elastic band to hold the travellers thereon.
Patent GB-960178-A (GB)
Title: Ammunition projectile
IPC: F42B30/10
Filed: 1962-06-25
Abstract: 960,178. Ammunition projectiles. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWENDUNGEN ENERGA. June 25, 1962 [June 20, 1961], No. 24369/62. Heading F3A. An ammunition projectile which is launched by the expansion of propelling gases in a chamber formed by two elements movable relative to one another over a certain stroke and which become effectively integral with one another to seal the chamber, comprises a warhead 1 which may contain an explosive, incendiary, smoke producing or other charge 2, a tail tube 4 forming the first element and a piston 9 forming the second element and which houses a detonator 10 and a launching charge 11 and is adapted to receive a spigot 18 of a firing device. The firing device further comprises a striker pin 19 held against the action of a spring 20 by a safety pin 21 and a base 17 provided with projections 17b to anchor the device in the ground. The projectile is launched by removing front and rear portions 15, 16 from a container 14, which acts as a launching tube, and withdrawing pin 21 which allows ignition of detonator 10 by striker pin 19 and hence ignition of charge 11. Gas pressure forces the projectile forward, tube 4 sliding with a gastight fit on piston 9 which remains seated on spigot 18. The piston 9 is removed from the firing device when a lining 12 of synthetic resin, plastics or ductile metal on the piston is progressively crushed against a conical throat 8a of the tail tube to render the piston substantially integral therewith. Grooves 8b at the rear of the tail tube 4 prevent build-up of air pressure between the rear of the piston 9 and the tail tube as the latter moves forward. Substantially no gas produced by charge 11 escapes from the projectile since the piston becomes effectively sealed at the rear thereof and the base of the detonator casing is made sufficiently strong to prevent piercing by the striker pin 19 or bursting on combustion of charge 11. In a second embodiment, Fig. 4, a piston 27 with annular fins 32 is shown in its rearmost position with the fins 32 crushed against throat 24a, the launching charge having been ignited by a striker 30 thrown forward by gases from a cartridge discharged within a firearm 26. In a modification, the piston 27 is adapted to receive a firing device as in Fig. 1 and the launching charge is attached independently of the piston to the base of the warhead. In a third embodiment (Figs. 6, 7, not shown), the piston is replaced by a tube fitted to telescope over or within the tail tube and which carries internally at its rear end a detonator and launching charge and externally stabilizing fins. Further embodiments describe systems of crushable washers attached to the piston.
Patent GB-1293853-A (GB)
Title: A device for the eradication of insects
IPC: A01M1/20
Filed: 1970-05-20
Abstract: 1293853 Insecticides GLOBUS - WERKE FRITZ SCHULZ JUN 20 May 1970 [12 Aug 1969] 24378/70 Heading A5E [Also in Division B8] A device for the eradication of insects comprises a carrier, e.g. a mixture of cellulose and asbestos, treated with the insecticide dimethyldichlorovinylphosphate, to which is added an evaporation retardant in the form of a block copolymer of propylene oxide and ethylene oxide, which copolymer has one block derived from propylene oxide units and two blocks derived from ethylene oxide units. A solution used for preparing cellulose sheets 1 consists of 2.5% to 22.5% by weight of the evaporation retardant, 10% to 40% by weight of dimethyl dichlorovinyl phosphate, 0.04% to 1% by weight of scarlet fast red, 10% by weight of methanol and the remainder is methylene chloride. At least one of the cellulose sheets 1 is placed in a casing 3 or 4 of plastics material containing ventilation slits 2 and the or each cellulose sheet 1 is held away from the casing walls 6 by webs 7 on the interior surfaces 5 of the walls 6. The casing 4 may accommodate a number of cellulose sheets 1 and have interior guide ribs 9 along the sides 8 and interior spacers 12 at the top 11 and bottom 10. The casing 4 may have a protective covering 13 which consists of a hood 14 fitted over the casing 4, its bottom edge 13 being sealed to the lower part of the casing with an adhesive strip 15'. The covering 13 may be a transparent capping 17 flanged around the edges 18 which can be affixed to a backing 19 and made airtight.
Patent GB-1385723-A (GB)
Title: Photographic objective
IPC: G02B13/00
Filed: 1972-05-24
Abstract: 1385723 Objective ASAHI KOGAKU KOGYO K K 24 May 1972 [24 May 1971] 24510/72 Heading G2J A photographic objective comprises six lens elements being a first positive double convex element 1, a second positive meniscus element 2 convex to the front, a third negative meniscus element 3 convex to the front, a fourth negative meniscus element 4 concave to the front cemented to a fifth positive double convex element 5 and a sixth positive double convex element 6. the following inequalities being satisfied:- tant focal length given by the first and second elements 1, 2. Optical data is given for one example.
Patent GB-860025-A (GB)
Title: Improvements in dimensional stabilization of cellulose materials
IPC: G03C1/775
Filed: 1957-08-02
Abstract: 860,025. Dimensionally stabilized paper-board etc.; treating wood with liquids; waterproofing. UPSON CO. Aug. 2, 1957 [Aug. 10, 1956], No. 24535/57. Classes 96 and 140. Paper-board, paper, e.g. photographic paper, regenerated cellulose, cloth, or wood, &c. is made stable dimensionally in respect of changes in relative humidity, by impregnating it with an aqueous solution of a partial &c. reaction product of a polyamine with an organic compound having hydroxyl groups attached to different carbon atoms, and at least one carboxyl group, e.g. a hydroxy carboxylic acid, or a polycarboxylic acid which may be aliphatic or aromatic, e.g. adipic, fumaric, dihydroxystearic, ortho-salicylic, itaconic, or phthalic acid or an ester, e.g. formed by reacting a polycarboxylic acid with a polyhydric alcohol. The polyamine may be aliphatic, e.g. ethylene or propylene diamine, diethylene triamine, triethylene tetramine, or hexamethylene diamine, &c. or it may be aromatic, e.g. pphenylene diamine, diaminoanisole (1,2,4), diaminophenol (2,4), or di- or tri-aminobenzoic acid, &c. They may be reacted in substantially equi-molecular proportions and the solution may have a pH value of 3 to 10. A waterproofing agent, e.g. a urea-formaldehyde, melamine-formaldehyde, or a phenol-formaldehyde resin, microcrystalline paraffin wax or petroleum wax, or natural or artificial rubber latex or a size, e.g. glue or gelatine may be included in the stabilizing solution. The treatment also gives increased resistance to abrasion, improved softness and flexibility, and antistatic (electrical) properties. The reaction products are also anti-foaming. Specifications 846,098 and 849,522 are referred to.
Patent GB-697664-A (GB)
Title: Improvements relating to thermostatically controlled valves for gas-heated appliances
Inventor: SMITH RONALD ELWELL
IPC: G05D23/02
Filed: 1950-10-07
Abstract: 697,664. Thermally-actuated valves. PARKINSON STOVE CO., Ltd. Oct. 4, 1951 [Oct. 7, 1950], No. 24539/50. Class 135 In a thermostatically-controlled valve, e.g. for ovens, having a valve member 17 adjustable to its seating 16 by rotation of an abutment piece 19 extending through the member and engaging a rod and tube thermal element 14 at one end and having a tongue and slot connection 20 with an angularly adjustable spindle 21 in a detachable cover 23 at the other end, the valve member is a flat disc freely supported on an axial boss of a guiding spider 18 through which the abutment piece screws, the spider being anchored in the cover, with axial but no angular movement, by a pin 34 engaging a slot 33 in one of the spider arms. The disc is anchored to a light spring 27 pressing it against the spider while the spider has a spring 25 loading it on to the seat. By reversing the disc, either face may form the seating surface.