baber/WOPTO huggingface dataset:
Patent GB-1491249-A (GB)
Title: Refrigerant compressor
IPC: F04B39/02
Filed: 1974-12-24
Abstract: 1491249 Reciprocating compressors J W OLSON 24 Dec 1974 [28 Dec 1973]  55881/74 Heading F1N A compressor for an automotive refrigeration system comprises a housing 12A ... 12D defining a rectangular compression chamber 18, a doubleacting rectangular piston 20 slidable in the compression chamber 18, a crank-shaft 14 extending transversely through the hollow interior 20A of the piston, and a drive block 36 journalled on an eccentric portion 14D of the crank-shaft for converting rotation of the crank-shaft into reciprocation of the piston. The block 36 slides between detachable rails 38A, 38B lining the interior 20A, the thickness of the rails being chosen to take up manufacturing tolerances and provide a good sliding fit with the block 36. Overlapping strip seals 20B around the ends of the piston 20 seal against the flat walls of the compression chamber 18, the walls being formed by rails 40A, 40B of selective thickness detachably secured to opposite internal surfaces of the housing part 12B and end plates 12B1, 12B3. Gas enters each end of the compression chamber 18 from a suction chamber 28 within the housing part 12A via a respective port 32 in the end-plate 12B1 and a perforated valve plate 22A controlled by reed valves 22B, Fig. 2 (not shown). After compression the gas is delivered from each end of the chamber 18 into a discharge chamber 26 within the housing part 12C through a respective row is discharge ports 24 controlled by a reed valve 24B, Fig. 3 (not shown). A magnetic clutch 42 driven by a belt (not shown) is rotatably mounted on the housing part 12D and energized to drive a plate 42A keyed to the crank-shaft 14. A balance weight 42F is integral with the drive plate 42A, a further weight 34 being disposed in the suction chamber 28. Lubrication is effected by oil entrained in the suction gas blowing past the piston 20. This oil enters an axial passage 44A connected to the suction chamber 28 and having a branch passage 44B for directing oil to a groove 44C in the block 30, the latter having radial holes for delivering the oil to the rails 38A, 38B. A second embodiment comprising two compression chambers drawing from a common suction chamber is described, Figs. 7 and 8 (not shown).
Patent GB-1402833-A (GB)
Title: Position determination device
IPC: G06F3/033
Filed: 1973-12-03
Abstract: 1402833 Determining position acoustically SUMMAGRAPHICS CORP 3 Dec 1973 [6 Dec 1972] 55983/73 Heading H4D A position determining system includes a plurality of vibrational-wave propagating media arrayed over a surface; a transducer near the surface and which when triggered produces a magnetic field which launches vibrational waves in the media; a pick-up device coupled to the media to detect the waves; and means responsive to the triggering and the wave detection to time the wave propagation and so provide an indication of the distance between transducer and pick-up. In the Figs. 1-3, embodiment the co-ordinates of transducer 30 over a surface 10 are determined relative to pick-up wires 16, 18. A pulsed magnetic field produced by energizing ferrite-cored coil 32 of the transducer launches a longitudinal wave in one or more of the magnetostrictive wires in arrays 12, 14. Optional magnets 26, 28 enhance the pick-up output. Discriminators 22, 24 each detect when the associated pick-up output waveform first crosses zero after exceeding a threshold amplitude. This zero crossing is used to stop a respective clock-pulse counter which was started a short period before the coil 32 energization. The two accumulated counts are transferred to a store and/or converted to analogue form for display on a cathode ray tube (e.g. a storage tube). The said short period is to take into account the radius dimension of coil 32. The system is calibrated by determining the co-ordinates of the corners of a reference triangle on surface 10. The transducer 30 may incorporate a writing stylus. Pulses for energizing coil 32 are triggered manually or by an oscillator or under computer control. Circuit details are given for the pulse generator and discriminators. The roles of wires 16, 18 and coil 32 may be reversed. Additional pick-up wires may be used at the opposite ends of arrays 12, 14.
Patent GB-1161476-A (GB)
Title: Lens Testing Apparatus
IPC: G01M11/02
Filed: 1966-12-14
Abstract: 1, 161, 476. Lens and testing apparatus. A. LEMAY OPTICAL CORP. Dec. 14, 1966 [March 31, 1966], No. 56010/66. Heading G2J. In a lens testing apparatus the lens L, Fig. 1, is placed with its optical axis on the axis of an image forming system which forms images of cross hairs when knobs 110, 140, Fig. 6, have been adjusted to move the cross hairs to the correct positions on the axis. As shown a light source 50, condenser lens 54, lenses 62, L, 74, 76, and mirrors 78, 80, provide an image on screen 46 of the cross hairs. The latter are formed as vertical and horizontal lines on an end disc of a cylinder, or, in a modification, as cross wires and a pair of coaxial pins secured to the cylinder, the cylinder being divided into four segments with opposed segments secured together, so that one pair carrying one cross hair can slide relatively to the other pair carrying the other cross hair. In use, the lens L is placed in position and knob 110 adjusted, which through a belt 120 Fig. 6, and pulley system slides a pin 122 connected through lug 124 and inverted U-shaped casing 32 to the cylinder 30 to adjust the position of one cross hair. When the image is in focus on screen 46 the spherical power of the lens is read off a scale associated with knob 110. Then the knob 140 is adjusted to rotate, through a belt and pulley system, a rod 150 and this, through a second belt and pulley system moves a pin 166 connected through lug 170 and sub-frame 172 to a ring 178. The sliding movement of the latter moves the second cross hair relatively to the first so that cylindrical power may be read off a scale associated with knob 140. For measuring the astigmatic value of the lens, the two cross hairs are rotated simultaneously by rotating knob 180 and this rotates a shaft 190 and through belt 196, the ring 178 which is connected to the cross hairs.
Patent GB-1457254-A (GB)
Title: 1-phenoxy-2-hydroxy-3-chromonyloxy-propane derivatives
IPC: A61K31/35
Filed: 1972-12-05
Abstract: 1457254 Pharmaceutical compositions MILES LABORATORIES INC 4 Dec 1973 [5 Dec 1972] 56117/72 Addition to 1405253 Heading A5B [Also in Division C2] Pharmaceutical compositions of the compound of the formula I wherein each of R, and R 2  are hydrogen, halogen, nitro, cyano, C 1-4  alkyl or alkoxy and the 1-phenoxyl-2-hydroxy-propanoxy moiety is attached to the 2-(5-IH-tetrazoly)-chromonyl nucleus at carbon atom 5, 6 or 7 thereof and pharmaceutically acceptable salts thereof with the usual excipients and optionally with other active ingredients such as bronchodilators for example of tlhe #-adrenergic type may be used for the treatment of allergic and auto-immune diseases such as asthma and hay fever when administered orally, parenterally, rectally or by inhalation and for treatment of inflammatory conditions when applied topically.
Patent GB-1411019-A (GB)
Title: Swivelled cargo releasing device
IPC: B64D1/04
Filed: 1973-12-04
Abstract: 1411019 Hooks TRANSTECHNOLOGY CORP 4 Dec 1973 [4 Dec 1972] 56122/73 Heading E2A A load-release hook 20 is pivoted at 21 on a housing 12 which is swivellable at bearings 13 under a main housing 11 which is supported at 19 and which contains a swivel link 38, 52, 49 for transmitting releasing movement from an operating motor 41 to the hook. The hook is latched at 24 in its closed position by a lever 24 which is itself latched at its upper end 27, 30 by a lever 28 which is controlled by a toggle linkage 33, 34 operated by the rod 38 through swivel 52. The releasing motor 41 acts through lever 45 and crank 43 subject to limit switch 54. There is an automatic touch-down release provided by resilience 23 at hook pivot 21, which, when the load is relieved, causes the hook-base to rise and lift rod 56. This, through lever 57, allows the descent of sleeve 61 to operate a microswitch 65 to energise the release motor. The release linkage may be manually tripped (Fig. 2, not shown). There is a mousing piece 66.
Patent GB-1417839-A (GB)
Title: Solid state electrolytic and ionic devices
IPC: H03K3/36
Filed: 1971-12-08
Abstract: 1417839 Semi-conductor circuits D P NEVILLE 7 Dec 1972 [8 Dec 1971 29 Feb 1972 14 Sept 1972] 56934/71 9289/72 and 42757/72 Heading H3T A pulse generating arrangement comprises two asymmetrically conducting solid state, electrolytic or ionic devices each having a donor electrode and an emitter electrode connected in series back to back and means for applying an input voltage pulse to the devices for a duration shorter than the storage times of them so that one of the devices is forward biased and the other reverse biased resulting in break down accompanied by a rapid increase in voltage across the reverse biased device to a threshold and an output current that restores the forward biased device almost to zero voltage condition. The basic circuit may be used in bi-stable circuits Figs. 24a, 24b (not shown), light sensing circuits Figs. 25a, 25b (not shown), pulse amplifiers Figs. 26a, 26b (not shown), memory circuits Figs. 27a, 27b (not shown), or a pulse width modulator Fig. 31 (not shown).
Patent GB-1240499-A (GB)
Title: Separating ammonia from offgas obtained in the synthesis of melamine
IPC: C01C1/12
Filed: 1968-12-02
Abstract: 1,240,499. Ammonia separation. BADISCHE ANILIN- & SODA-FABRIK A.G. 2 Dec., 1968 [1 Dec., 1967], No. 57022/68. Heading C1A. [Also in Division C2] Ammonia is separated from a mixture of ammonia and carbon dioxide (obtained as an off-gas in the synthesis of melamine) which is free from melamine, by scrubbing the offgas with a melt containing ammonium nitrate and/ or ammonium thiocyanate, said melt being at least saturated with ammonia at the temperature concerned, whilst maintaining a temperature higher than the boiling point of ammonia and below the decomposition temperature of ammonium carbamate. The carbon dioxide reacts with the ammonia in the melt to give ammonium carbamate which forms a suspension, while the purified ammonia passes out of the separation zone. The melt may also contain up to 140% by weight, based on the ammonium nitrate and/or thiocyanate, of urea which need not be pure but may contain up to 30% by weight of biuret. The suspended ammonium carbamate may be separated from the melt, which is recycled, and decomposed to a mixture of ammonia and carbon dioxide, which is also recycled. The figure (not shown), describes a plant for making melamine, wherein the off-gas produced is treated to a process in accordance with the invention.
Patent GB-1325158-A (GB)
Title: Heater
IPC: C10G9/20
Filed: 1970-12-02
Abstract: 1325158 Catalytic reactor with tube mounting S BORN H J BORN V MARTIN JNR J L DANIEL and N R BORN [trading as BORN ENG CO] 2 Dec 1970 [17 Dec 1969] 57274/70 Heading B1F In Fig. 1, inlet conduit 37 and outlet conduit 50 to rows of catalysts tabs 29 are outside direct fixed heater 10, and the catalyst tubes 29 are supported by cradle members 45, Fig. 4, which are swingably mounted so that the tubes 29 can move with outlet conduits 50 when they expand or contract.
Patent GB-1203759-A (GB)
Title: Plastic crates
Inventor: BOWN MICHAEL JOHN DAVID
IPC: B65D1/24
Filed: 1966-12-30
Abstract: 1,203,759. Bottle crates. JOHN DALE Ltd. 21 Dec., 1967 [30 Dec., 1966], No. 57512/66. Heading B8P. A plastics bottle crate having separators 5 defining compartments and extending from the bottom of the crate over a part only of the depth of the crate is characterized in that the side and end walls of the crate are substantially thicker above the level of the tops of the separators at C than below the level of the tops ot the separators, the difference in thickness being defined by a step C<SP>1</SP>. Vertical strengthening ribs are formed on the walls, at least some of the ribs being thickened in the same way as the walls.
Patent GB-1450067-A (GB)
Title: Automatic central buffer couplings
IPC: B61G3/10
Filed: 1973-12-13
Abstract: 1450067 Automatic central buffer rail couplings SOC FRANCO-BELGE DE MATERIEL DE CHEMINS DE FER and SCHWINN AG 13 Dec 1973 [13 Dec 1972 4 Dec 1973] 57827/73 Heading B7T An automatic central buffer rail coupling of the Willison type comprises a front plate 33 positioned between a buffing jaw 31 and a pulling jaw 32, and an arm 1 which includes a one-piece stress-carrying buffing plate 11 extending from the buffing jaw 31 to a pivot member 2, the coupling being characterised in that the buffing jaw, the pulling jaw, the pivot member and the front plate have been assembled together, and to the buffing plate, by welding. The illustrated coupling is provided with a passageway 6 for receiving supply line conduits. The front plate 33 has an aperture through which latching members (not shown) project. The coupling includes a male guide assembly 4 and a female guide assembly 5 for assisting coupling operations. The buffing jaw 31 is a die-forged member of generally "U"-shaped cross-section. The pivot member 2 includes a hollow portion 23 containing a spring which is operative during pivoting of the coupling. A housing 82 houses part of the latching mechanism of the coupling.
Patent GB-1374615-A (GB)
Title: Rotary positive displacement machines
IPC: F01C1/22
Filed: 1971-12-15
Abstract: 1374615 Rotary positive-displacement machines NISSAN MOTOR CO Ltd 15 Dec 1971 [16 Dec 1970] 58251/71 Heading F1F A machine similar to the trochoidal type and which may be an engine, motor or pump comprises a rotor chamber 11 having a profile indicated by a continuous line and including symmetrical curves C' E A E' B' and B F' A F C joined by straight, or substantially straight, lines B' B and C C'. The corresponding epitrochoidal profile is indicated by a broken line. The profile of the rotor 12 is an envelope curve generated by the chamber profile. The planetary motion of the rotor is controlled by an internallytoothed gear 14 on the rotor meshing with a fixed gear 15, which is non-circular e.g. quasielliptical. Equations to the chamber and rotor profiles and to the gear shapes are given in the specification.
Patent GB-1418687-A (GB)
Title: Mandrel
IPC: B21B25/00
Filed: 1972-12-18
Abstract: 1418687 Rolling tubes MANNESMANNROHREN-WERKE AG 18 Dec 1972 [17 Dec 1971 (2)] 58424/72 Heading B3M A mandrel for use in the mandrel-changing apparatus of a tube rolling mill has two frustoconical parts 24, 24<SP>1</SP>, Fig. 3, which are mounted on a common bolt 31 and held in place by screws 33, 34. The parts may either face in the same direction and be separated by a spring 32 or face in opposite directions and be separated by a substantially cylindrical central part whose diameter is equal to or less than that of the maximum diameter of the end parts. The mandrel is used in co-operation with a rotatably indexable drum 10, Fig. 1, and is initially fed by a tube blank to a position between the rolls 1, 2 of the mill, and supported by a mandrel rod 6. After a rolling step, the mandrel passes down a shoot 15 to one of a number of recesses in the drum periphery, for subsequent re-use.
Patent GB-1343626-A (GB)
Title: Treatment of chloride solutions
IPC: C23G1/36
Filed: 1971-12-16
Abstract: 1343626 Zinc chlorides and sulphate; hydrochloric acid NATIONAL INSTITUTE FOR METALLURGY and WOODALL-DUCKHAM SOUTH AFRICA (PTY) Ltd 16 Dec 1971 [18 Dec 1970] 58521/71 Heading C1A ZnCl 2  is removed from solus containing zinc. and iron chlorides by contacting with an anion exchange medium and then recovering chloride values from the resulting solution by high temperature hydrolysis to iron oxide and HCl. The ZnCl 2  after elution with water may be converted to ZnSO 4  by absorption on a cation exchange medium and subsequent stripping with H 2 SO 4 . The ZnSO 4  produced may be crystallized out by addition of concentrated H 2 SO 4  or alternatively the solution may be subjected to electrowinning to recover metallic zinc. The process is suitable for the recovery of HCl from pickle liquors and leach liquors.
Patent GB-1339733-A (GB)
Title: Methods and apparatus for controlling the motion of particles
IPC: B01D59/00
Filed: 1970-12-10
Abstract: 1339733 Manipulating particles WESTERN ELECTRIC CO Inc 10 Dec 1970 [15 Dec 1969] 58590/70 Heading G6P [Also in Divisions G1 C7 and F4] By directing a beam of optical radiation, capable of controlled interaction with the particle, on to a particle in an environment which renders any temperature gradient effect less influential than radiation pressure, the motion of the particle is controlled by the radia tion pressure of the beam. Radiometric (i.e. temperature gradient) effects can be avoided by the use of transparent particles in transparent media or in vacuum, or by controlling the heating of absorptive particles. Thus, particles may be trapped in stable optical potential wells or accelerated by using optical beams of appropriate frequency, shape and intensity. In one application, a polyvinyltoluene particle 27 (Fig. 2) is trapped in the potential well provided by six intersecting beams from lasers 12<SP>1</SP>-15<SP>1</SP>, 28 and 29. (Only two lasers need be used). An initial gas environment, to provide viscous damping of the particle, is subsequently replaced by a vacuum. A pulsed laser 30 provides a beam sufficient to accelerate particle 27 to a velocity between 1 x 10<SP>5</SP> and 1 x 10<SP>6</SP> cm/sec. which is dissipated in a target 26 of, for example, stainless steel. A neutral particle of such velocity may simulate a micrometeorite and can hence be used in research into an outer space environment. In a modification (Fig. 10, not shown), two bidirectional, intersecting laser beams are used. In a development (Fig. 3), multi-stage acceleration is achieved. 'The laser 30<SP>1</SP> provides a continuous-wave accelerating beam or a long optical pulse which is periodically refocused by apertured lenses 31-33 through which the particle passes. In a modification (Fig. 9, not shown) coherent light from a laser (162) is directed at an angle to the path of movement of the particle. Light reflected from the particle is Doppler-shifted in frequency and is received by a detector (163). If the particle is still accelerating, the detected light is "chirped" in frequency. If the particle is elongate, having a flat surface, the latter would provide the reflected, Doppler-shifted light. In a further development (Fig. 5) a neutral particle 51, which may be an atom or molecule, is accelerated with strong focusing. In such cases, the interaction between the particle and the light beam is a resonance interaction-the wavelength of the light is tuned to a particular radiation transition of the particle. A pulsed laser 54 provides initial movement of the particle, while further acceleration and recentering are provided by lasers 55-58 or by beam-dividers and mirrors using the output of laser 54. By angularly shifting the orientations of the light beam paths, the particle 51 can be caused to follow a curved, specifically circular, path. Supplementary electric or magnetic focusing may be applied where appropriate.
Patent GB-1212698-A (GB)
Title: Antitrichomonadal agents and a process for the preparation thereof
IPC: C07D413/04
Filed: 1967-12-28
Abstract: 1,212,698. Nitrofuran derivatives. R. & L. MOLECULAR RESEARCH Ltd. 28 Dec., 1967, No. 58763/67. Heading C2C. Novel compounds of Formula I in which R<SP>2</SP> is C 1-6  alkyl, R<SP>3</SP> is C 2-6  alkylene and each of R<SP>4</SP> and R<SP>5</SP> is C 1-6  alkyl or -NR<SP>4</SP>R<SP>5</SP> represents a heterocyclic ring system, are prepared by reacting a compound of Formula II with at least an equimolar weight of an aminoalcohol of Formula HO-R<SP>3</SP>-NR<SP>4</SP>R<SP>5</SP>, in an inert organic solvent at a temperature of from about -20 C. to about 100 C. 2 - (α - Chloro - α - hydroxylimino - methyl) - 5- nitrofuran of Formula III is prepared by reacting 5 - nitrofurfural with hydroxylamine hydrochloride to form 5 - nitro- 2 - furaldoxime of Formula IV and chlorinating this with nitrosyl chloride in ether. Antitrichomonal compositions comprise one of the novel compounds together with a carrier. The compositions may be in the form of tablets, dragÚes, capsules, suppositories, injectable liquids, drops, emulsions, suspensions or syrups.
Patent GB-1224980-A (GB)
Title: A method and apparatus for splitting coil yokes and the like
Inventor: WITTS FRANCIS JOHN
IPC: H01J9/236
Filed: 1969-12-05
Abstract: 1,224,980. Splitting coil yokes. MULLARD Ltd. 5 Dec., 1969, No. 59527/69. Heading B5E. A method of splitting a coil yoke 4 such as a C.R.T. deflection coil yoke, comprises locating the yoke between a pair of supporting jaws 2, 3, applying an increasing mechanical force to one jaw, measuring the force applied to the yoke during the application, detecting a sudden change in said measurement as indicative of cracking of the yoke, and removing the force upon detection of the change. The yoke may be provided with grooves 5 to weaken the yoke where it is to be cracked and a rib 6 on a support 1 for the jaws locates in a groove in the yoke to position the yoke. The jaw 3 is biased outwards by a spring 7 and engages a piezo-electric transducer 8 mounted between steel blocks 9 and having an output lead 11. The jaw 2 is connected by a lever 12 to a pneumatic cylinder 14 in a pneumatic circuit which supplies pressure to the cylinder to actuate the jaw 2 to apply an increasing force to the yoke. When the yoke cracks, the change in pressure is detected by the transducer which actuates a valve to cause the cylinder to retract the jaw 2.
Patent GB-1328590-A (GB)
Title: Ice making apparatus
IPC: F25C1/14
Filed: 1971-12-22
Abstract: 1328590 Ice-making VENDO CO 22 Dec 1971 [25 June 1971] 59628/71 Heading F4H Ice scraped from the wall of a cylindrical freezing chamber 32 by an auger 38 is discharged through an upper outlet 44 for compaction and drying by forced flow through an extrusion head 16 into an insulated hopper 18 having a melt water drain 58. The extrusion head comprises sections 62, 64 secured together to define a chamber 68 receiving ice from the outlet 44 and radial extrusion passages 70 of outwardly decreasing cross-sectional area through which the ice is passed by a cam 74 secured for rotation with the shaft 40 of the auger 38. The crosssectional area of the chamber excluding the cam is greater than that of the outlet 44, and also has a volume at least as great as the volume of ice discharged by one revolution of the cam in order that the power and strength of the auger is not substantially increased to operate the extrusion head. An ice breaker and agitating assembly 86 may be secured on top of the shaft 40 for rotation therewith.
Patent GB-1347620-A (GB)
Title: Torque wrench
IPC: B25B23/142
Filed: 1972-12-27
Abstract: 1347620 Torque wrenches SALTUS-WERK MAX FORST 27 Dec 1972 [25 Feb 1972 2 Nov 1972] 59649/72 Heading B3N A torque wrench comprises a tool carrier 1, and an actuating arm forming a handle 3 pivoted thereto at 2; mounted in the handle is a thrust piece 5 biased by a spring 6; thrust piece 5 acts against a rolling element 12 which is supported at 3 points and which is displaceable with a rolling motion to move the thrust piece against the spring when a desired torque is reached. An abutment W forms one of the support points and consists of a roller 16 on a shaft 14 which is mounted on the actuating arm. The third support is carried by the tool carrier and may be a roller 18. Spring pressure is adjustable by a screw 8. In an alternative embodiment roller 18 is replaced by a support pivotally connected to rolling element 12 at one end and to the tool carrier 1 at the other end. A further embodiment has the rolling element 12 formed of three discs of different diameters. The larger diameter disc contacts the thrust piece and roller 18 whilst the other two discs contact abutment W.