baber/WOPTO huggingface dataset:
Patent GB-1119933-A (GB)
Title: Mountings for wires or the like
Inventor: DUCK ANTHONY GEORGE
IPC: H01H51/06
Filed: 1964-12-01
Abstract: 1,119,933. Carrying conductors into casings. SPERRY RAND Ltd. 26 Nov., 1965 [1 Dec., 1964], No. 48717/64. Heading H2E. [Also in Division H1] In a method of passing fine wires through a wall, the wires 17 are placed in notches in the surface of a resilient cylindrical member 23, and are retained in position by a resilient sleeve 24 which is pressed over them. The notches are initially of slightly smaller cross-section than the wires so that the resilient material of the cylindrical member 23 and the sleeve 24 is slightly deformed, thus ensuring a firm anchorage for the wires 17. As shown, four such wires 17 are passed through the end of a brass tube 20 housing a miniature electrical relay having a permanently magnetized rotor 13 mounted on bearings 14 to rotate between the two limbs 12 of an electromagnet 11. When the electromagnet is energized two of the wires 17 are interconnected (Fig. 1, not shown), the particular pair depending upon the direction of rotation which is determined by the polarity of the electrical supply. The surfaces of the limbs 12 are coated with insulating material. The wires 17 may be curved to allow for inaccuracies in the bearing positions, and may also be of different lengths to prevent harmonic vib at ons. Inspection holes 27 are provided to aid the construction of the relay, and these may be later covered up by an outer sleeve of glass fibre.
Patent GB-1128221-A (GB)
Title: Mechanisms for controlling speed responsive governors
Inventor: BLOOM JOSEPH LEWIS
IPC: G05D13/10
Filed: 1965-11-18
Abstract: 1,128,221. Centrifugal governors. JOSEPH LUCAS (INDUSTRIES) Ltd. Nov.18, 1966 [Nov.18, 1965], No.49002/65. Heading G3B. The loading of a centrifugal governor is varied by a mechanism comprising a first lever 11 angularly movable by changes in governors speed and having thereon a cam surface 14, a second lever 16 having a cam surface 15 spaced from and presented towards the cam surface 14, means responsive to changes in a parameter, such as the temperature in the jet pipe of an aircraft engine, for varying the position of the second lever so that the cam surface 15 is moved towards or away from the cam surface 14, a member 18 which can be moved angularly and a spring 17 movable with the member and acting between the cam surfaces to vary the loading on the governors. The cam surfaces are seldom out of concentricity to any substantial extend so that resistance to angular movement of the member 18, which is movable by the pilot through a lever 18a, is reduced to the minimum. The position of the second lever 16 is varied by a pivotally mounted arm 25 and a cam 28 controlled by a motor 26, an amplifier 26b and a device 26a while the first lever 11 is pivoted at 12 and connected to a sleeve m actuated by the governor g to regulate fuel ports d. A capsule h subjected to the compressor stage pressure from the engine acts on a sleeve a. A second axially movable sleeve b is connected to a governor j, and like the governor g, is driven by a gear train l from the engine.
Patent GB-1263835-A (GB)
Title: Improvements in or relating to injection lasers
Inventor: THOMPSON GEORGE HORACE BROOKE
IPC: H01S5/30
Filed: 1970-10-15
Abstract: 1,263,835. Semi-conductor diode lasers; heterojunction structures. STANDARD TELEPHONES & CABLES Ltd. 15 Oct., 1970, No. 49051/70. Headings H1C and H1K. A heterostructure GaAs-GaAlAs injection laser has a layer of GaAs 10 containing the PN junction sandwiched between two layers of GaAlAs the GaAlAs layers each forming an inner GaAlAs layer 11, 12 which is backed by an outer GaAlAs layer 13, 14 having a greater mole percentage of AlAs than the inner layers. The GaAlAs layers may be backed by further GaAs layers 16, 17 which have a lower electrical and thermal resistivity than the GaAlAs layers and one of which is in contact with a heat sink. One of the GaAs layers and one of the inner GaAlAs layers 11, 12 may be omitted, Figs. 2, 4 (not shown). The doping of the inner layers 11, 12 is made relatively low to decrease optical losses therein and in order to compensate for the increase in resistivity due to this low doping the outer layers 13, 14 are highly doped to decrease their resistivity.
Patent GB-1413683-A (GB)
Title: Read-view mirror assemblies
IPC: B60R1/06
Filed: 1972-10-25
Abstract: 1413683 Rear-view mirrors CASTLE ELECTRONICS Ltd 25 Oct 1972 49156/72 Heading B7J A rear-view mirror assembly for attachment to an external surface (wing) of a vehicle comprises a plastics base 10 having three apertures 12 therein for the reception of self-tapping screws to secure it to the vehicle, a mirror glass 20 in a plastics frame 21 armed by lugs 22 frictionally engaging a metal mounting plate 23 and a housing 18 for fitting round the mirror glass and frame and covering the securing screws, which housing is secured to the base 10 by releasable attachment means in the form spring fingers 15 on the base 10 snap engaging the edge of an aperture in the housing which fits over the base and engages a ledge 17 and tongue 16 thereon. The invention is characterized by the attachment means being inaccessible for release until the mirror glass and frame are removed from the housing by the application of a thin key-like tool insertable between the rim of the mirror glass and the housing. The tool can engage a cut-out 23c in the plate 23.
Patent GB-1371386-A (GB)
Title: Rotary-piston compound-expansion engine
IPC: F02G1/02
Filed: 1971-10-22
Abstract: 1371386 Rotary-piston engines C HUBERS 22 Oct 1971 [29 Oct 1970] 49260/71 Heading F1F In a trochoidal-type compound-expansion engine air drawn through a port 3 undergoes compression in two stages by pistons 2, 11 before passing by way of a valve means e.g. a non-return valve, (not shown) to combustion apparatus (not shown) through an opening 14, the pistons being driven by combustion gases expanding in two stages and supplied by said apparatus through an opening 13. The exhaust gases are ejected through an opening 4. In a second embodiment, Fig. 2, compression and expansion are each performed in three stages, inter-stage coolers (21, 29), Fig. 3 (not shown) and non-return valves 18, 26, 34 being provided in the compression path. The cooler (29) may be omitted.
Patent GB-1377789-A (GB)
Title: Plate type heat exchanger and method of manufacture thereof
IPC: F28F3/14
Filed: 1972-10-27
Abstract: 1377789 Making heat-exchanger panels TRANTER MFG Inc 27 Oct 1972 49580/72 Heading B3A [Also in Division F4] A hollow-plate heat exchange element 10 comprises a pair of similar plates (e.g. of steel) disposed face-to-face and seamed together at their marginal edges 18, 19 the plates also being secured together at intermediate points by spotwelds 25 in a pattern of parallel rows of the spotwelds with the welds of adjacent rows relatively staggered so that when the plate assembly is expanded by applying an internal fluid pressure, interconnected fluid spaces of pillow-like transverse shape are formed within the element as shown in Fig. 4. The element as shown, is further subdivided by longitudinal welds 21, 22, 23 to provide an internal flow path of generally serpentine form extending between fluid inlet and outlet connections 12, 13 respectively, which are attached to the plate assembly before expansion. 14 are handling grip elements welded to the plate assembly. In the method described for making the element the connections 12, 13 comprise subassemblies which are welded to the plate assembly before expansion, at cut-away portions (27, Figs. 2 and 6). The completed assembly is finally expanded by hydraulic pressure (e.g. at 750 p.s.i.) in a fixture.
Patent GB-1085935-A (GB)
Title: Sulfhydryl resins
IPC: C08G59/14
Filed: 1965-09-17
Abstract: Sulphydryl resins are prepared by reacting H2S with a polyepoxyalkyl polyether of polyol which is either a polyoxyalkylene glycol or an oxyalkylated alkane polyol, using one or more moles of H2S for each equivalent of oxirane oxygen in the polyepoxyalkyl polyether.  The reaction may be performed in the presence or absence of solvents or diluents and is preferably performed in the presence of an alkaline catalyst.  The sulfhydryl resins are useful as curing agents for epoxy resins, preferably in the presence of acidic or basic catalysts.
Patent GB-1487944-A (GB)
Title: Combustion gas generator
IPC: B60R21/26
Filed: 1974-11-19
Abstract: 1487944 Combustion gas generators THIOKOL CORP 19 Nov 1974 [19 Nov 1973] 50074/74 Heading F1L The invention relates to a combustion gas generator such as for use for inflating the safety cushion of a vehicle. The gas generator comprises an outer casing formed of two parts 22, 26 which are in screwed engagement, the cover part 26 being formed with gas discharge outlets 28 which are radially directed. An inner cylindrical casing 18 is disposed within the outer casing to define an annular space 29 therebetween, the casing 18 being formed with openings 20. A frangible container 12 is disposed within the inner casing, the container being hermetically sealed and containing a gas generating material 10. An ignition squib 4 is located centrally within the gas generator and is surrounded by pyrotechnic material 5 which is contained within a perforated enclosure 6 which is enclosed within a frangible member 9. A fine filter 16 and a coarse filter 17 are located between the gas generating material 10 and the container 12. A cooling device 30 is disposed in the annular space 29 between the cylindrical casing 18 and the outer casing 22, 26, the cooling device being in the form of a spirally wound wire screeen. The cooling device is located between end walls 32, 33 which are apertured at 34 for combustion gas flow. A material 31 is disposed between the wall 33 and a further wall 35 for neutralizing the combustion gases. In the event of an impact being sensed, the squib 4 is fired followed by ignition of the pyrotechnic material 5. At a certain pressure the frangible member 9 bursts, and the gases pass to the gas generating material 10 which is thereby ignited. At a certain pressure the frangible container 12 bursts at the openings 20, the gases pass across the neutralizing material 31, then across the cooling device 30 and finally discharge through the radial openings 28 to inflate the safety cushion. The casing 22, 26 is formed with a mounting flange 24 and is concavely shaped at 22 to facilitate mounting adjacent a steering column. The gas generating material 10 may be a mixture of 55% sodium azide and 45% anhydrous chromic chloride. The neutralizing material 31 may be powdered iron sulphate, and the pyrotechnic material 5 may be a mixture of 25% boron and 75% potassium nitrate.
Patent GB-1188430-A (GB)
Title: Bromoalkyl-S-Alkyl-or-Aryl-(di) Thiolphosphoric Acid Diester or Ester Amide Chlorides
Inventor: HOFFMANN HELMUT
IPC: C07F9/26
Filed: 1968-10-23
Abstract: 1,188,430. Bromoalkyl - thiolphosphoric acid derivatives. FARBENFABRIKEN BAYER A.G. 23 Oct., 1968 [14 Nov., 1967], No. 50254/68. Heading C2C. Novel thiolphosphoric acid derivatives of the formula where R 1  to R 6  are hydrogen, alkyl, alkoxyalkyl or haloalkyl, R 7  is an optionally substituted aliphatic, aryl or aralkyl radical, X is oxygen or sulphur or an N-alkyl or N-aryl-amino group and n is 0 or 1, are prepared by reacting a compound of the formula with a sulphenic acid bromide of formula R 7 -S-Br, or with the reaction product of an aliphatic or aromatic mercaptan or thiophenol and bromine. The reaction is generally carried out in the presence of a solvent at a temperature between - 20 and +50 C. The products are useful intermediates.
Patent GB-1242565-A (GB)
Title: Novel aluminum fluoride catalyst and process for hydrofluorinating acetylene using same
IPC: B01J27/06
Filed: 1968-10-25
Abstract: 1,242,565. Aluminium fluorides. DAIKIN KOGYO CO. Ltd. 25 Oct., 1968 [26 Oct., 1967 (2)], No. 50683/68. Heading C1A. [Also in Division C2] Novel crystalline forms of aluminium fluoride designated the # 2  and # 3  forms are characterized by their X-ray diffraction data. The chemical formula of the # 2  form is AlF 3 .O.5H 2 O and that of the # 3  form is AlF 3 . The # 2  and # 3  forms of the fluoride may be derived from a third form of the fluoride designated as the # 1 -form AlF 3 .1-5H 2 O. The # 1 -fluoride is made by evaporation of a hydrofluoric acid solution of aluminium fluoride to dryness at 30‹ to 120‹ C. When the # 1 -fluoride is heated above 120‹ C., then the # 2 -form of the fluoride is gradually formed. On heating the # 2  fluoride above 180‹ C. the # 3 -fluoride begins to form and on heating the # 3 -fluoride above 500‹ C. the known alpha fluoride is formed. The forms of the fluoride which exist when the # 1 -fiuoride is partially converted to the # 2 -form and similarly the # 2  form to the # 3 -form are called "intertransition forms" .
Patent GB-1483269-A (GB)
Title: Thermostatically-controlled crystal ovens
IPC: G05D23/24
Filed: 1974-11-22
Abstract: 1483269 Crystal ovens SIEMENS AG 22 Nov 1974 [4 Dec 1973] 50698/74 Heading H1E A thermostatically-controlled crystal oven comprises an outer heat-conductive casing 4, 5 and an inner heat-conductive parallelepipedal casing 1, 2 containing a crystal oscillator 3, one face of the inner casing comprising a plate 20 joined to the casing by a heat-conductive neck 19 defined by slots 13, the plate 20 being provided with one or more recesses for the heater 7 and temperature-sensing component 8 of the closed-loop control system. The plate 20 is accommodated within a complementary aperture in the wall of the outer casing 4, 5. A printed-circuit 6 for the oscillatory circuit is accommodated in the space between the two casings, and a printed-circuit 9 for the control system is attached to the plate 20. The whole system is enclosed within a cover 10 of thermoplastic material lined with an insulating foam 11. The heater 7 and temperature-sensing component 8 may be housed in the same recess, in separate recesses or in communicating recesses (see Figs. 5 to 8, not shown). The distance between these elements and between the elements and the heat-conducting neck 19 are determined by the regulating rate and loop amplification of the control system.
Patent GB-1282088-A (GB)
Title: Grain dryer
Inventor: MCKENZIE BRUCE ALDUS
IPC: F26B17/14
Filed: 1970-10-27
Abstract: 1282088 Grain dryers HEIL CO 27 Oct 1970 50863/70 Heading F4G A dryer comprises one or more tiers of inclined shelves 31 including ducts 32 which discharge hot air into grain flowing slowly down the shelves 31, the grain being supplied through an inlet 20, maintained at the level of detectors 84 and 86 and discharged by metering wheels 48 into a duct 49. The grain supplied to the inlet 20 is distributed between two pairs of opposed tiers by augers 21 and 22 driven by electric motors controlled by level detectors 84 and 86. If the grain level falls below fingers 88 and 89, a warning horn sounds. Grain is discharged from the duct 49 into a grain coller comprising an exhaust fan which creates a suction within ducts 56 and 67 to cause cooling air to move upwardly from inlets 65 and ducts 57. Grain is discharged from the cooler onto an endless conveyor 64 by discharge wheels 62<SP>1</SP> and 63<SP>1</SP> driven by an electric motor controlled by a level detector 97 (Fig. 7). If the grain level falls below a device 100 or rises above a device 101, warning light or horns operate. Blowers deliver air to vertical ducts containing burners and connected to the ends of the ducts 32, and the hot air exhausts through perforated plates 47 to the duct 49 connected to a hot air outlet 81<SP>1</SP>, 81. The metering wheels 48 are chain-driven by a single variable-speed motor controlled by a temperature-responsive device 94 (Fig. 3) or 194 (Fig. 7), or by a moisturesensing deivce 294 (Fig. 7). Each duct 32 is thermally insulated and comprises a diagonal wall and a division parallel thereto, to give an even air distribution. The air is heated to 300‹-600‹F. The inclination of each shelf is between 40 and 60 degrees, preferably 51 degrees. The grain takes 15 minutes to an hour to pass down the shelves 31, while the hot air passes in less than a second.
Patent GB-1075746-A (GB)
Title: Improvements to gas-cushion vehicles
Inventor: TATTERSALL EDWARD GUNSTON
IPC: B60V1/16
Filed: 1964-12-16
Abstract: 1,075,746. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. Dec. 16, 1965 [Dec. 16, 1964], No. 51150/64. Heading B7K. A side-wall air cushion vehicle has the side walls 4 extending downwardly by subsidiary wall structures 7 which may be inflatable. Each subsidiary side wall structure comprises an elongated base-board 23 attached at 24 to the lower edge of a perforated sheet 25 of fabric secured at its upper edge 26 adjacent the upper end of wall 4. Tie cables 27 connect board 23 with a row of winding drums 28, the cables passing over guide pulleys 31 and through seals 30 whereby the wall may be retracted to lie against the underside of the plenum chamber top wall (Fig. 2, not shown). Each base board carries a plurality of contiguous members each having a cushion-facing portion flanked by two inwardly-extending side portions 21 as described in Specification 1,043,351. In operation over water the sidewalls 4 alone are employed to contain the cushion, but to allow operation over a land surface the motors 28 are operated to allow the subsidiary flexible walls to descend. They would normally be held in place by cushion pressure, but to resist displacement under impact axially-extendable braces 37, driven by motors 38 are lowered into contact with the base-board 23. In a further embodiment (Figs. 5 and 6, not shown) the walls 4 are hollow and the subsidiary walls each comprise an inflatable bag which may be on the base of the sidewall or on the outer side to act as an impact resisting buffer on a vehicle which is intended to operate only over water.
Patent GB-1314259-A (GB)
Title: Drumtype rotary filter
IPC: B01D36/00
Filed: 1970-10-29
Abstract: 1314259 Rotary drum filter FIVES LILLECAIL 29 Oct 1970 [4 Nov 1969] 51483/70 Heading B1D A rotary drum, which may support a separate filtering belt 12 or could be simply covered with filter medium, comprises a series of peripheral compartments 16 each opening into a chamber 20 inside the drum shell, each chamber 20 being connected to a central filtrate collector 24 by a pipe 22 controlled by a respective valve 26. Valves 26 are opened while the corresponding compartments pass through slurry tank 14 and under cake-washing sprays 66 and closed while the compartments pass through the cake removal zone, where in Fig. 2 the belt 12 leaves the drum and passes round driven discharge roller 60. Valves 26 may be operated in desired sequence by mechanical or electrical means, but as shown they are pneumatically operated by a rotary distributor (46, 48) at one end of the drum (Fig. 1, not shown). A conduit (43) connects collector 24 to suction means at the other end. Tank 14 has a reciprocating agitator 56, inlet 70 and overflow 72. Drum 10 is rotated by worm and pinion (44, 42) which is geared to belt drive roller 60. Compartments 16 are roofed by polypropylene grids which support belt 12. Chambers 20 have inclined floors, with pipes 22 opening through their trailing, deeper ends, and open into respective compartments 16 through holes, of which one aligns with pipe 22, or through slots extending circumferentially the whole width of the compartment. In Fig. 1 chambers 20 are located half way along the drum, but they could be at one end. A pipe (54) and aperture (74) enable air discharged from the valve actuators to flow from the drum interior, preventing condensation therein.
Patent GB-1391538-A (GB)
Title: Electrical oscillators
IPC: H03K4/06
Filed: 1972-11-08
Abstract: 1391538 Pulse modulation circuits; transistor oscillators HONEYWELL INFORMATION SYSTEMS Inc 8 Nov 1972 [24 Nov 1971] 51624/72 Headings H4L and H3T  A wide range of frequency adjustment is said to be avaialble in a voltage controlled oscillator comprising an integrator 7, a comparator 9, and switches 5, 6 connecting them with reference and control voltages at 3 and 20 respectively. The integrator 9 produces a negative slope output when switch 5 as shown connects a reference voltage source 30 to input resistor R7 ; the second input to integrator amplifier 7 is also derived from the reference voltage 30 by means of R4, R6. When this output reaches the voltage at the inverting input of comparator 9, the output at 10 changes to a second level, and this changes over both the switch 5 to make the integrator start producing a positive slope, and also the switch 6 to connect the reference voltage from 30 to the comparator 9 in place of the frequency controlling voltage V A . The latter controls frequency by varying the threshold voltage in comparator 9 which the sawtooth from 7 has to reach before reversal. Potential divider R2, R5 connects the inverting input of comparator 9 to the reference voltage, so that any temperature induced variations in the reference voltage V C  are applied to both the integrator (R4, R6) and the comparator thereby ensuring that any resultant changes in sawtooth slope are compensated by variations in the threshold of the comparator 9. The switches 5 and 6 may be MOSFET's.
Patent GB-1325748-A (GB)
Title: Pattern identification systems
IPC: G06V10/75
Filed: 1970-10-30
Abstract: 1325748 Pattern recognition KOGYO GIJUTSUIN and TOKYO SHIBAURA DENKI KK 30 Oct 1970 [5 Nov 1969] 51704/70 Heading G4R In a pattern identification system, N differenstandard patterns are prepared for each of K different reference patterns with one of which a given input pattern is to be identified, inner products being obtained of an input pattern and each of the N standard patterns for each of the K reference patterns, each of the inner products being then squared. The squares are summed for each of the K reference patterns separately, the sums being square-rooted. The square roots are compared with the norm of the input pattern multiplied by a factor. This gives a 1-out-of-K marking identifying the input pattern. A reject indication is given if the marking is other than 1-out-of-K. The norm is obtained by squaring the original signals representing the input pattern, and taking the square root of the sum of the result. An inner product is obtained by applying the signals representing the input pattern to respective parallel weighting resistors feeding a summing amplifier or an optical method may be used. Squaring uses a resistor and diode ladder network. Summing and square-rooting uses a resistor adder with summing amplifier, the latter having a squarer circuit in a feedback loop. Use of the norm may be omitted, together with the square-rooting, a maximum detector being used to produce the 1-out-of-K marking.
Patent GB-1203701-A (GB)
Title: Apparatus and process for the continuous distribution of expandable liquids
Inventor: MALLET MICHAEL
IPC: B29C44/30
Filed: 1968-11-01
Abstract: 1,203,701. Forming sheets of expanded plastics material. RHONE-POULENC S.A. 1 Nov., 1968 [2 Nov., 1967], No. 51974/68. Heading B5A. In forming sheets of expanded material between two foils 3, 4 passing between two rigid and smooth forming members 10, 10a, friction is reduced by providing a film covering 13 on one or each of the rigid surfaces. The film material must have a coefficient of sliding friction when in contact with the foils of less than 1 (preferably less than 0À5), and have tensile strength and surface hardness. Copper and aluminium foils, foils of a single plastic or a laminate, e.g. of regenerated cellulose, polyvinyl chloride, polyethylene, polypropylene, P.T.F.E. or linear polyesters, and foils of reinforced plastics, e.g. polyethylene or woven glass fibre fabric, may be satisfactory materials for the films. Poly(ethylene glycol terephthalate) foils are preferred. The films are kept moving either in a direction opposite to the forming foils or, if in the same direction, at a different speed. The film movement may be intermittent, a system of catches ensuring the immobilization of the film (Fig. 2, not shown).