baber/WOPTO huggingface dataset:
Patent GB-1524564-A (GB)
Title: Apparatus for detecting the presence of objects in light beams
IPC: G01B11/245
Filed: 1975-09-16
Abstract: 1524564 Light guarding system TELUB AB 16 Sept 1975 [20 Sept 1974] 38096/75 Heading G1A Apparatus for detecting the presence of an object, e.g. object 1, comprises an array 10 of light sources oriented with an array 20 of light sensors, control units 17, 18 arranged to activate the sources 10a-g sequentially and corresponding sensors 20a-g in synchronism therewith, and a signal comparison circuit 22 for providing an output signal on line 16 whenever a light sensor gives no output signal during its activation period, the control units 17, 18 being controlled by clockpulses from a generator 19. The pulses are also fed to the comparison circuit 22, and the control unit 17 is arranged to activate each light source for approximately half the periodic time of the pulse train. In the described embodiment photo-diodes (L10a-b), Fig. 2 (not shown) emitting infrared are controlled by transistors (T10a-b) which are connected to the output lines (173a-p) of a binary-decimal converter (171) in a control unit 17 capable of controlling up to sixteen photo-diodes. A counter (174) receiving pulses from a generator (19) supplies binary information over four lines (172a-b) to converter (171) to cause each output to be activated in turn. An inhibiting input (173q) to the B-D converter receives pulses direct from the generator in order that each diode should be activated for only half the periodic time of the pulse train. Optionally when a count of sixteen is reached a further B-D converter can be activated by means (175) to control a further sixteen diodes. The outputs of eight light sensors comprising photo-transistors (F20a &c.), Fig. 3 (not shown) are connected via high-pass filters (31, 32) to inputs (181a-h) of an analogue connector (181) in control unit (18). A binary counter (184) receiving pulses from the generator 19 controls the analogue connector over three input lines (182a-b) thereby causing each photo-transistor output to be connected in turn to a pulse shaping circuit 21 via an output (181k) of the connector (181). The output of circuit 21 is fed to comparator 22 comprising a counter (186) which provides an output pulse on line 16 whenever no input pulse occurs on line 15. The first counter (184) on reaching a count of eight inhibits connector (181) and activates a further analogue connector (188) controlling eight more photo-transistors. To detect when a required number of objects have not fallen through the light curtain a device 23 provides an output signal when the number of pulses on line 16 over a predetermined time period is less than a number pre-set by circuit 24. The control units may be arranged to activate more than one light source and more than one sensor during one and the same time interval.
Patent GB-640644-A (GB)
Title: Improvements in or relating to magnetrons
IPC: H01J25/587
Filed: 1946-12-31
Abstract: 640,644. Magnetrons. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Dec. 31, 1946, No. 38128. Convention date, Feb. 17, 1945. [Class 39 (i)] A magnetron comprises a series of cavities with partitions therebetween radiating from a common cathode chamber, means for providing tight electron field coupling of all said cavities, an output loop in one of the cavities, and a tuning loop provided in one of the cavities not occupied by the output loop. In the construction shown in Fig. 3 the tuning loop 36 is diametrically opposite the output loop 23 and has a contour of substantially the same shape and size as the cavity in which it is placed. The loop 36 is connected to a coaxial line 37, 38 connected to the coaxial line tuning device 39, 40, the length of which can be varied by a movable piston 41 having two inverted coaxial quarter wave lines 42, 43 providing at their ends gaps 44, 45 of high impedance. The piston 41 is movable by a hollow screw 57 on the end of the conductor 40 kept from rotation by screws 58 and moved longitudinally by rotation of a nut 59 held from longitudinal movement by a bracket 60. Tight electric field coupling of the cavities 13 is effected by upper and lower pairs of conducting straps 11a, 11b, Fig. 8, the partitions 11 being notched so that the straps connect alternate partitions 11, prevention of the lower order modes of vibration other than the desired # mode being effected by breaks in the upper outer strap and the lower inner strap spaced 90'degrees apart. The ferro-magnetic pole pieces 18<SP>1</SP>, Fig. 1, are coupled to the horse-shoe magnet 18 by pole-shoes 19 which are split to provide a rotatable engagement, the magnet being anchored by a screw 20 passing through the middle of the magnet and terminating in a stud 21 in a hole in the magnetron shell. The cathode structure, Fig. 7, is supported by non-magnetic metallic links 27 on the ends of the cathode leads, the upper link connecting with the filament 28 of the cathode by an eyelet arrangement and the lower link connecting with both the electron emissive cathode sleeve 29 and the filament.
Patent GB-356065-A (GB)
Title: Improvements in pneumatic tyres and method of making the same
IPC: B60C9/06
Filed: 1930-12-19
Abstract: 356,065. Pneumatic tyres. GOODYEAR TIRE & RUBBER CO., 1144, East Market Street, Akron, Ohio, U.S.A. Dec. 19, 1930, No. 38319. Convention date, Dec. 28, 1929. [Class 144 (ii).] A tyre cover, particularly of the type adapted to be fitted directly to a hub barrel, is formed by oppositely winding cord strips 10, 15 on a cylindrical former 12, applying beadrings 17 at spaced intervals, applying pairs of opposite bias cord bands 18, 19 at the sides of the rings 17, severing the material (as at 26), folding the edges of the severed portions to form a flat band, and finally shaping the band to tyre form by expanding the mid-portion and moving the bead-portions towards each other, or by contracting the beadportions.
Patent GB-344942-A (GB)
Title: Folding crutch for cripples
IPC: A61H3/02
Filed: 1929-12-16
Abstract: 344,942. Crutches. HODGSON, M. S., Roslyn, St. Ouens, Jersey. Dec. 16, 1929, No. 38416. [Class 81 (ii).] A foldable crutch comprises two parts 11, 14 connected by a hinge 17 and secured by thumb-screw 24 passing through a nut 19 let into the part 11 and engaging a nut 23 on the part 14. The hinged joint is rabbeted as shown at 18. The parts 11, 14 are cut away for lightness and are provided with a padded head 12, a rubber ferrule 15 and riveted bolts 16, 13, the latter being padded to form a hand-grip. The Provisional Specification states that the crutch may comprise two or more hinged parts, may be of part-round or tubular section, and may be of wood or steel or other metal.
Patent GB-340404-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M1/00
Filed: 1929-12-16
Abstract: 340,404. Spray carburetters. BARIQUAND, G., 127, Rue Oberkampf, Paris. Dec. 16, 1929, No. 38447. [Class 7 (iii).] In a multiple jet carburetter having a distributing slide valve 10 with openings 18a, 18b &c. which brings the radiating suction channels 11a, 11b &c. into operation in succession according to its position, and in which the rise and fall of the slide member is cushioned by air in a space 16 which communicates with the atmosphere through an aperture 17 in an exchangeable screw, one or more peripheral grooves 20, communicating through a longitudinal groove 13 and outlet 21 with the atmosphere, tap any leakage along the sides of the slide member to the air space 16. The slide member consists of a sleeve 10 completely closed at the bottom by a plug. A key or screw 14 co-operates with channel 13 to guide the slide member 10. Within the slide 16 is a part 22 cone-shaped to turn the fluid stream upwards and having a section resembling a Maltese cross so as to form a screen between neighbouring channels. The slide member rests on the end 15 on feet 24 which, together with the upper end of the slide, are chamfered at 25, 26.
Patent GB-364814-A (GB)
Title: Improvements in or relating to foot attachments for pit props or steel arches employed as colliery or mining roof supports
IPC: E21D15/22
Filed: 1930-12-22
Abstract: 364,814. Wedges. DARLINGTON ROLLING MILLS CO., Ltd., Whessoe Road, Darlington, and MENSFORTH, T., Sadberge Hall, Middleton St. George, Co. Durham. Dec. 22, 1930, No. 38485. Addition to 338,175, [Class 20 (ii), Building and structures, Miscellaneous accessories &c.]. [Class 89 (ii).] Relates to pit props provided with collapsable foot attachments of the kind described with reference to Figs. 6, 7, 8, and 10 of the parent Specification. According to the present invention, the headed wedge 16, has an inclined lower edge and has a recess 17 in its upper edge ; a transverse pin 24 is provided at the narrow end of the wedge to limit its backward releasing movement. The recess is so proportioned and arranged that, when the wedge is driven backwards, the web 6 of the prop 1 will fall therein, and the prop can thereby be readily removed. The sides of the recess preferably taper downwards. The lateral sides of the wedge and also of the cross-piece 12 may be tapered to facilitate their insertion into the holes in the prop 1, the shearing member 9, and the coverplates 3.
Patent GB-1196783-A (GB)
Title: Articulated Boom Device.
IPC: B66F11/04
Filed: 1967-08-21
Abstract: 1,196,783. Mobile articulated-boom apparatus; fluid pressure apparatus acting through flexible elements. A. B. CHANCE CO. 21 Aug., 1967 [14 Sept., 1966; 11 April, 1967], No. 38508/67. Headings B8H and B8B. In a boom consisting of two sections 12, 14, pivotally connected in series, the section 14, carrying a load support at its outer end, is secured to a pulley 46 which is rotatably mounted on the outer end of the section 12. Cables 70, 72 extend between anchorage devices 30, 76, and pass around the pulley 46 and a further pulley 38 mounted on the boom section 12. A pair of hydraulic rams 18, 20 are secured to the section 12 and their piston-rods 26, 28 are pivoted to the anchorage device 30 whereby extension and retraction of the rams moves the anchorage device 30 and thereby, through the cables 70, 72, causes rotation of the pulley 46 together with the boom section 14. The anchorage device 30 provides compensation for unequal movements of the piston-rods 26, 28.
Patent GB-1433298-A (GB)
Title: Corrosion inhibition of steels
IPC: B01D53/62
Filed: 1974-09-04
Abstract: 1433298 Inhibiting corrosion of steel in CO 2  scrubbers BENFIELD CORP 4 Sept 1974 [6 Sept 1973] 38719/74 Heading C7E Corrosion of steel in contact with an aqueous alkali metal carbonate solution used for absorption of CO 2  is inhibited by including in said solution a metal vanadate salt and a metal nitrite. The vanadate may be KVO 3 , K 4 V 2 O 7 , NaVO 3 , Na 4 V 2 O 7 , or V 2 O 5  or NH 4 VO 3  may be added, to react with the alkali metal carbonate to give the corresponding alkali metal vanadate; the amount may be 0À01-2 wt. per cent based on total solution. The same amount of nitrite is used, e.g. KNO 2  or NaNO 2 . The scrubbing solution may also contain ethanolamines, glycine, or alkali metal borate.
Patent GB-1014127-A (GB)
Title: A vehicle sub-frame assembly and a vehicle body including the same
IPC: B62D29/04
Filed: 1964-09-23
Abstract: 1,014,127. Vehicle bodies. F. A. E. PORSCHE. Sept. 23, 1964 [Sept. 28, 1963], No. 38755/64. Heading B7B. A vehicle body has metal longitudinals 2 enclosed in the space between the inner and outer plastics floor members 10, 11, the parts being secured together over the mating surfaces 17, 17<SP>1</SP> and flanges 15, 16. A shallow inverted top hat section metal member 36 disposed symmetrically about the centre line of the body extends from a transverse member 5 to the rear of the vehicle where it is bent forwardly at 36<SP>1</SP> to secure it to the transverse member 7, thus forming a support for the silencer 40 of the power unit 32. A one-piece seat moulding 21 is carried by the transverse members 5, 6, is also secured to a transverse support extending over the rear window 27.
Patent GB-1104594-A (GB)
Title: Drying of hydrocarbon chlorides
IPC: C07C17/38
Filed: 1966-08-31
Abstract: Water-laden hydrocarbon chlorides are dried by contacting the said chlorides with activated alumina at a pH of 6.5 or above. When the alumina approaches or reaches the limit of its capacity to absorb water it may be regenerated by heating.  Specified hydrocarbon chlorides are perchloroethylene, trichloroethylene and methyl chloroform.
Patent GB-833683-A (GB)
Title: Internal combustion engines of the liquid fuel injection compression ignition type
Inventor: HOLT GEORGE ALLEN
IPC: F02B23/04
Filed: 1956-12-20
Abstract: 833,683. Compression-ignition engines. RICARDO & CO. ENGINEERS (1927) Ltd. Dec. 20, 1957 [Dec. 20, 1956], No. 38908/56. Class 7(3) At least two similar combustion pockets 12, 13, Figs. 2 and 4, formed in the cylinder head or partly in the cylinder head and partly in the piston or, as shown, wholly in the piston, have fuel jets 17 similarly injected downstream into their similarly whirled air changes. Cylinder head or piston grooves 26 of unsymmetrical profile, Fig. 3, lead to the pockets air already set in rotation by the disposition of the cylinder-head inlet passage 5. The jets 17 are supplied by a single injector 11 slightly offset from and slightly inclined towards the cylinder axis, and entering an inter-pocket groove 14. Modifications. The pockets may be three vertical non-intersecting cylinders coacting with a vertical and central fuel injector, there being an overhead inlet valve. masked to create air rotation and an overhead exhaust valve. Fig. 8 shows pockets 51 having individual injectors 56, and Figs. 9 and 11 hemi-spherical and cylindrical pockets respectively. In Fig. 14 a symmetrical inter-pocket groove is provided. The pockets may differ slightly in diameter. The Provisional Specification refers to apportionment between the pockets of fuel from a single jet by means of deflecting surfaces of the inter-pocket groove and to spreading of a large proportion of fuel along the pocket walls for vaporization, and shows a number of minor constructional variations including two and three intersecting pockets and curved grooves 26, Fig. 6, leading to pockets 15 having bottoms, rising to a central point; it also refers to Specification 617,795 in connection with the use of injectors which direct up to 10% of a fuel jet upstream or towards the pocket centre either to assist starting or during normal running with more or all of the fuel so directed during starting or idling. Specification 833,684 also is referred to.
Patent GB-948973-A (GB)
Title: Improvements in or relating to shielding for package irradiation plant
Inventor: JEFFERSON SIDNEY
IPC: G21F7/005
Filed: 1961-10-31
Abstract: 948,973. Irradiation apparatus. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 23, 1962 [Oct. 31, 1961], No. 38913/61. Heading H5R. A package irradiation plant comprises a biological shield 4 around a source of gamma radiation, a labyrinth through the shield, a turntable 5 at a junction between two passages 6, 7 in the labyrinth and gamma radiation shielding 10 associated with the turntable, the arrangement being such that movement of the turntable will move the shielding to register in turn with each passage, thereby substantially closing the passage and preventing radiation scatter across the junction. The packages 1 are conveyed on carriers 2 suspended from an overhead monorail 3 and admitted through a gap in the shielding 10 one at a time on a further length of monorail 8 mounted on the turntable. The turntable is rotated, thus closing passage 6 and opening passage 7, and the package is transmitted to the second passage 7 by using an ejector 9. The scatter shield may be comprised by two diametrically opposed arcuate shields as shown or it may be in the form of a right vertical cylinder, a passageway being formed therein to receive a package and extending only a part of the way therethrough.
Patent GB-1360436-A (GB)
Title: Data processing systems
IPC: G06F12/04
Filed: 1971-08-19
Abstract: 1360436 Multi-processor system HONEYWELL INFORMATION SYSTEMS Inc 19 Aug 1971 [24 Aug 1970] 39055/71 Heading G4A A multi-processor system has at least one data store, a plurality of processors and a controller and a data transmission member connecting the store and the processors. The system uses 18 bit operand and instruction words, the operand words containing 6 or 9 bit individually addressable characters. To supply or request data a processor A, B or C supplies a command and an address, e.g. processor B sends a request QREQ-B, an address ABO-17 and a command, CMD-BO3 for a store read operation or a store write operation. The request is fed to Request Cells and Scan Logic 110 and is granted if the store is not busy or is queued according to a priority schedule. When the request is granted signal SEL-B is passed to the Control logic 101 which produces control signals CMD-BO-3/C50-3 and QRC passing the command to a Command Register 114 and to the Control Logic, and ABO-17/ACO- 17 passing the address. The address is an 18 bit word bits 0-2 of which address a 6 or 9 bit character in a word, bits 3-16 of which address two adjacent words in the store and bit 17 of which determined whether an odd numbered or an even numbered word is required. Bits 3-16 are fed to the store and bits 0-2, 17 are fed to a Register 122, a decoder 124 and the control logic 101. The decoder produces 8 signals determining which part or parts of the 36 bit adjacent words is or are required. If a write operation is required data DBO-17 is supplied to switch 130 and transferred to a data word shifter 105 where for instance a character to be written is shifted to the required write position. 36 bit words read are passed to switch 134 which passes the required one of the two adjacent words to a shifter which moves any required character to a desired position and supplies it to the processor. Control signals are passed between the controller and the processors and store to indicate the completion of each step in an operation.
Patent GB-898831-A (GB)
Title: Improvements in the preheating of limestone powder and cement raw materials
IPC: F27D13/00
Filed: 1959-11-18
Abstract: 898,831. Preheating granular &c. materials. ROSA, J., and PETR, V. Nov. 18, 1959, No. 39110/59. Addition to 824,949. Class 51 (2). Apparatus for preheating limestone or cement raw materials passing in general countercurrent direction to hot gases as disclosed in the parent Specification, has tubes 1-3 with U- bends 9-11 leading either by connections 4, 5 to following tubes or to gas outlet 7 respectively, and peripheral slots 12-14 in the U-bends, slots 12 and 13 being connected by tubes 15 to restricted lower portions 18 and 17 respectively of preceding tubes, and slot 14 being connected by tube 16 to cyclone separator 19. The latter has a connection 20 to gas outlet 7, gas being admitted at 6 and charge material at 8. Material entrained by the gas tends to move towards the outer peripheral wall of the U-bends and to pass through said slots 12-14, and the constrictions 17 and 18 induce a partial recirculation of gas carrying the charge material with it. Preheated charge material may pass from cyclone separator 19 to a rotary kiln.
Patent GB-1121683-A (GB)
Title: The production of phosphate esters
Inventor: EISEMAN FRED SAMUEL
IPC: C07F9/08
Filed: 1965-09-14
Abstract: Phosphated polyethers are obtained by reacting at a temperature between 20 DEG  and 145 DEG C. 1 mole of P2O5 as present in 110 to 120% polyphosphoric acid with 0.3 to 1.5 moles of a non-ionic surface-active agent which is (1) a condensation product of at least one mole of a C2-C4 alkylene oxide with one mole of a C3-C20 primary aliphatic alcohol, a C4-C8 cycloaliphatic alcohol, a phenol, an alkyl phenol, an aliphatic fatty acid having at least 8 carbon atoms or a polyglycol having a molecular weight between 1200 and 15,000 derived from ethylene oxide and a polypropylene glycol or substituted polypropylene glycol having a molecular weight of 300 to 3000 or (2) derived from the reaction product of ethylene oxide and a water-insoluble polypropylene glycol containing a -NH-CH2-CH2-NH-group or substituted polypropylene glycol having a molecular weight of 300 to 3000.  The reaction may be carried out in the presence of 0.01 to 5% by weight of hypophosphorous acid or a salt thereof or phosphorous acid or a salt or ester thereof.ALSO:Phosphate esters are obtained by reacting at a temperature between 20 DEG  and 145 DEG  C. 1 mole of phosphorus pentoxide as present in 110-120% polyphosphoric acid with 0.3 to 1.5 moles of (a) a C3-C20 primary aliphatic alcohol, a C4-C8 cycloaliphatic alcohol or an ethylene glycol mono-C1-C6-alkyl ether or (b) a non-ionic surface-active agent which is a condensation product of at least 1 mole of a C2-C4 alkylene oxide with one mole of a C3-C20 primary aliphatic alcohol, a C4-C8 cycloaliphatic alcohol, phenol, an alkyl phenol, an aliphatic fatty acid having at least 8 carbon atoms or a polyglycol having a molecular weight between 1200 and 15,000 derived from a polypropylene glycol or substituted polypropylene glycol having a molecular weight of 300 to 3000 and ethylene oxide or (c) a non-ionic surface-active agent which is derived from the reaction product of ethylene oxide and a water-insoluble polypropylene glycol containing a -NHCH2CH2NH- group or substituted propylene glycol having a molecular weight of 300 to 3000.  The reaction, the products of which are soluble in moderately concentrated aqueous alkali and contain mono- and di-phosphate esters, may be carried out in the presence of between 0.01 and 5% by weight of hypophosphorous acid or a salt thereof or phosphorous acid or a salt or ester thereof.  The polyphophoric acid used is an equilibrium mixture of orthophosphoric, pyrophosphoric and higher linear phosphoric acids, and contains from 80 to 86.5% of P2O5.
Patent GB-1055613-A (GB)
Title: Frequency stabilisation of gas masers
Inventor: SHIMODA KOICHI
IPC: H01S3/139
Filed: 1964-09-25
Abstract: 1, 055, 613. Photo-electric control of laser frequency. NIHON DENSHI KABUSHIKI KAISHA. Sept. 25, 1964, No. 39276/64. Heading G1A. [Also in Divisions H1 and H3] The frequency of a gaseous optical maser (laser) is stabilized by frequency modulating the resonance tuning of the laser and detecting the fundamental and harmonic components of the modulating frequency in the laser output, then feeding the detected outputs to vary the horizontal and vertical tilt angles of the reflectors (to maintain them parallel), and their distance apart, and also to keep constant the pumping input power and output of the laser. The reflectors 2a, 2b are mounted on end plates spaced by four invar rods carrying current input windings 6a-6d, 7a, 7d and 8c, 8d which when energized vary by magnetostriction, the tilt and separation apart of the reflectors. Modulating frequencies e.g. 70 c/s and 25 c/s are applied to certain of the windings and from the partially translucent reflector 2b the light output is detected and amplified by a photo-multiplier tube. The fundamental, second and third harmonics of the 70 c/s input, separated by narrow band amplifiers, respectively provide a measure of (1) pumping input power variation (2) tilt of the reflectors in one direction, and (3) separation of the reflectors; and after detection in phase sensitive rectifiers and amplifying, are then respectively applied as automatic gain control to the pumping source, and to control windings on the invar rods to correct reflector tilt in one plane, and separation of the reflectors. The other input, 25 c/s, similarly corrects tilt in a plane at right angles to the first. The laser is so controlled that the first, second and third derivatives of the input power are all zero. The discharge tube 1 (containing a neon and helium mixture) is supported between the mirrors 2a, 2b and end plates by bellows 4a, 4b. The frequency 75 c/s and its harmonics may be derived by frequency division from a 450 c/s source.