baber/WOPTO huggingface dataset:
Patent GB-1369988-A (GB)
Title: Optical display apparatus
IPC: H01J29/89
Filed: 1971-11-19
Abstract: 1369988 Cathode-ray tube displays SANDERS ASSOCIATES Inc 19 Nov 1971 [20 Nov 1970] 55397/70 Heading H4T [Also in Division G2] In a cathode-ray tube display system, specifically an aircraft head-up display system, in which an image, produced on the phosphor screen 5 of a cathode-ray tube 2, when scanned by an electron beam 9, is directed by a mirror 6 and a collimating lens assembly 7 on to a combining glass 8, a "stand-by" optical image produced by a graticule 11 illuminated by lamps 12 co-operating with a reflector 13 is directed via a lens 14 on to the screen 5 and thence via mirror 6 and lens 7 on to the combiring glass 8. The optical image which consists, at least, of the relative heading of the aircraft, is produced on failure of the electronically produced image by switching on lamps 12. Alternatively, the optical image may be superimposed on the electronically produced image. The two images may be produced on the same side or on opposite sides of the phosphor screen 5. The reflector 13 is of polished aluminium and comprises four parabolic reflectors.
Patent GB-1214006-A (GB)
Title: Treatment of a particulate material with an anti-caking agent
IPC: C05B19/00
Filed: 1967-12-07
Abstract: 1,214,006. Alkylaryl sulphonates. PETROCHEMICALS CO., Inc. 7 Dec., 1967 [9 Dec., 1966], No. 55697/67. Heading C2C. [Also in Division C1] Alkylaryl sulphonates are made by alkylating and sulphonating an aromatic hydrocarbon, the alkylation being effected before or simultaneously with the sulphonation. Finally, the product is neutralized. The alkylation is effected with an olefine of 3-18 carbon atoms, e.g. propylene, tripropylene or tetrapropylene. The aromatic hydrocarbon may be benzene, toluene, xylene or naphthalene or an oil of specified properties containing alkylnaphthalenes. The sulphonating agent may be sulphuric acid, oleum or sulphur trioxide. A flow sheet of suitable apparatus is given.
Patent GB-1159360-A (GB)
Title: Process for Isolating Acrylic Acid from the Reaction Gases Obtained by Oxidation of Propylene or Acrolein
IPC: C07C57/07
Filed: 1967-12-07
Abstract: 1,159,360. Isolating acrylic acid. KNAPSACK A.G. 7 Dec., 1967 [15 Dec., 1966], No. 55762/67. Heading C2C. Acrylic acid is isolated from the hot reaction gases obtained by the oxidation of propylene or acrolein by cooling the reaction gas to a temperature between 90 and 200 C., extracting the gas in counter-current fashion with an ester of a mono- or di-carboxylic acid, subjecting the resultant extract to distillation to remove acrylic acid and using the distillation residue for the extraction of further acrylic acid-containing gas. The extractant, e.g. the methyl, ethyl, propyl, butyl and ethylhexyl esters of oleic, adipic, or ortho phthalic acid, may be used in admixture with a conventional acrylic acid stabilizer. It is preferred to free the extract from acrolein prior to distillation and to combine the resulting acrolein vapour with reaction gas constituents not absorbed by the extractant, the mixture then being returned to the oxidation zone after removal of formaldehyde and excess water. The process is illustrated by examples in which diethyl phthalate is used as the extractant.
Patent GB-1162710-A (GB)
Title: Refuse Burning Installations
IPC: F23G5/44
Filed: 1966-12-13
Abstract: 1,162,710. Refuse incinerators. FRITZ BECKER & CO. 13 Dec., 1966 [29 Dec., 1965], No. 55814/66. Heading F4B. An installation for burning refuse comprises a rotary kiln 2, a refuse charging device 3, burners 4 and 5, a flue 6 for the removal of flue gases and for preheating air needed for combustion, ash removal means at the opposite end of the kiln 2 to the refuse charging means and a device for removing dust from the flue gases comprising a cyclone 9, a pipe 10, a blower 11 and a stack 12, all individual parts of the installation being mounted on separate rail vehicles. Refuse deposited on a chain conveyer 40 is fed via hopper 39 to the charging device 3, where a screw conveyer 21 passes it through a combustion chamber 19 into the kiln 2. The burner 4 ignites the refuse, burning the combustion products given off, the hot combustion gases passing into a flue 6 to heat primary air for the kiln 2 passing in counterflow through an annular gap between the flue 6 and a surrounding sleeve 7. The ash removal means mounted on a vehicle 16 (Fig. 2) comprises a water pan underneath the ash exit end of the kiln 2, ash leaving the kiln dropping into the pan to be scooped away by arms carried on the rotary kiln. In operation, the combustion gases generally flow in the opposite direction to the material passing down the kiln, a reversing chamber heated by the burner 5 causing whatever gas flowing in the direction of the material to be reversed back towards the chamber 19. Owing to the considerable heat generated by the arrangement of the burners, the lower end of the kiln is water-cooled (Fig. 2).
Patent GB-1247529-A (GB)
Title: Storage unit
IPC: A47B87/00
Filed: 1968-11-28
Abstract: 1,247,529. Cabinets. PLASTRA S. A. Nov.28, 1968 [Nov. 29, 1967; July 8, 1968 (2)], No. 56633/68. Heading A4B. A collapsible cabinet 1 comprises spaced apart, rigid, rectangular, front and rear frames (5, 6) inter-connected by panels 2 1 , 2 2  , 2 3  releasably secured to the frames, each panel including a rigid element 16 enveloped between flexible sheets 17. Several panels may be formed in one piece; as in Fig. 3, by incorporating spaced rigid elements 16 covered by sheets 17 welded or otherwise secured together to define hinge lines 19. Such a panel may define a door 21 with an integral panel 20. The hinge line 19 may be reinforced with flexible tongues (108), Fig.6 (not shown) extending across the hinge line. Shelves 10 1 -10 3  may be supported on L-section supports (9 1 , 9 2 ), Fig.4 (not shown) rigid with the frames or by brackets (12) Fig.5 (not shown) selectively hooked into openings (11) in the frames. The panels forming top, bottom and two sides may be formed in a single length, Figs. 7, 8 (not shown).
Patent GB-1445187-A (GB)
Title: Arc welding
IPC: H02K19/20
Filed: 1973-12-07
Abstract: 1445187 Arc welders MAREMONT CORP 7 Dec 1973 [26 Jan 1973] 56830/73 Heading H2H  An arc welder comprises an inductor alternator having at least one field winding and a plurality of generating windings, a variable voltage D.C. source connected to excite the field winding, two output terminals for connection to a workpiece and an electrode, and a rectifier connected between the generating windings and the two output terminals. The alternator is preferably driven by an i.e. engine, the rotor of the alternator doubling as flywheel for the engine and the variable D.C. supply being derived from the electrical system of the engine. The generator windings are mounted on the stator and number 12, They are series connected in groups and co-operate with 8 teeth on a rotor to supply 3-phase A.G. to a 3-phase, full-wave bridge rectifier. The groups are #-connected for welding by a change-over switch may be incorporated to provide a Y-connection for supplying other loads, this switch also connecting in a voltage regulator for supplying the field winding with regulated D.C. derived from the alternator output via the rectifier. The design of the alternator is such that there is a range of field excitation values over which the open circuit output voltage is substantially constant, and the welding output current is generally proportional to the field excitation. Also over the range of welding output voltages, the welding current is substantially constant. The range of field excitation values begins at a high value as compared with other alternator arrangements and over the range the maximum and leakage flux through the generating windings changes by a similar amount. Furthermore, the flux in the generating windings does not reverse.
Patent GB-570426-A (GB)
Abstract: 570,426. Rotary distributors. HASLERAKT.- GES. WERKE FUR TELEPHONIE und PRAZISIONSMECHANIK. June 21, 1943, No. 9950. Convention date, July 2, 1942. [Class 38 (v)] To reduce the speed of revolution of the spindle of a rotary distributor relative to engine speed in a multipole ignition magneto, the contacts 3 leading to spark-plugs such as Z1 . . . Z6 are actuated in one plane and are spaced over part of the periphery, shown as half, while the distributor 1 carries two, or more, contacts 4 in the same plane which co-operate with contacts 3 successively. Thus, in the example shown, the shaft speed need only be one-half that necessary if the contacts 3 were spaced equally throughout the circumference. Examples are given for three cylindered engines, and for dual ignition six-cylindered engines.
Patent GB-1450716-A (GB)
Title: Rotary positive displacement pumps and motors
IPC: F03C2/30
Filed: 1973-12-10
Abstract: 1450716 Rotary positive-displacement fluidmachines SPERRY RAND CORP 10 Dec 1973 [27 Dec 1972] 57069/73 Heading F1F In a reversible sliding vane pump or motor, a cam ring 14 defines a track comprising arcuate portions 32, 34 and intermediate portions 36, 38 and is mounted between end-plates (20), (22) Fig. 1 (not shown) with the inter-position of pressureloaded cheek-plates 16, (18), each end-plate having a fluid terminal and passages for admitting fluid to recesses 56, 58 in the adjacent cheek-plate, the alternate recesses 58 having slots 60 connecting the fluid terminal to a working chamber in the region of one of the track intermediate portions 36 or 38. Sealing rings are located at the periphery of the recesses 56, 58. Additional passages 62 in recesses 58 allow the admission and exhaustion of fluid to and from the vane slots for biasing the vanes.
Patent GB-1222286-A (GB)
Title: BENZ[e]INDENE AND PHENANTHRENE DERIVATIVES AND A PROCESS FOR THE MANUFACTURE THEREOF
IPC: C07C43/12
Filed: 1968-12-03
Abstract: 1,222,286. Benz[e]indene and phenanthrene derivatives. F. HOFFMANN - LA ROCHE & CO. A.G. 3 Dec., 1968 [4 Dec., 1967], No. 57338/68. Addition to 1,108,976. Heading C2C. Compounds of Formula I wherein R 1  represents a hydrogen atom or a C 1-6  alkyl group, Z<SP>1</SP> represents a carbonyl group or the group CH(OR<SP>1</SP> 2 ) in which R<SP>1</SP> 2  represents a hydrogen atom or a C 1-6  alkyl, C 1-6  alkanoyl, benzoyl, nitro - benzoyl, carboxy - (C 1-  6  alkanoyl), carboxy - benzoyl, trifluoro - acetyl or camphorsulphonyl group, m is 1 or 2 and R 4  represents a C 1-6  alkyl group which contains at least two carbon atoms when m is 1, are prepared by hydrogenating in the presence of a noble metal catalyst, a compound of the general Formula II wherein Z has the same meaning as Z<SP>1</SP> or is -CH(OR 2 ) in which R 2  is C 1-6  alkoxy-C 1-6  alkyl, tetrahydropyranyl or phenyl-C 1-6  alkyl, and T is -CX=CH-, -C(OR 3 )=CH- or -Q-CH 2 -, R 3  being C 1-6  alkyl, X being Cl, Br or I, and Q being CO, (C 1-6  alkylenedioxy)- methylene, di - (C 1-6  alkoxy) - methylene, hydroxymethylene, tetrahydropyranyloxy - methylene or phenyl - C 1-6  alkoxy - methylene, to yield a mixture comprising a compound of the Formula III wherein T<SP>1</SP> has all the above values of T except the last two, and a corresponding 3a#- or 1#,8a# - stereoisomeric derivative thereof, equilibrating, and cyclizing the equilibration product of the Formula IV said cyclization being carried out simultaneously with or following said equilibration. The equilibration and cyclization processes may be effected by treatment with an acid or base. Deketalization may occur simultaneously or may be effected separately. An enol-ether or enol-halide side chain may also be hydrolysed in the acid treatment. A side chain hydroxy group should be oxidized to a keto group before cyclization. The products of the above process may be resolved by standard procedures or resolved starting materials may be used. Compounds of Formula I in which R 1 , R 4 , Z<SP>1</SP> and m are as defined above, provided that when R 1  is H and m is 1, R<SP>1</SP> 2  is C 1-6  alkyl or camphor sulphonyl are claimed per se.
Patent GB-1224258-A (GB)
Title: Convertible well pipe elevator slip assembly
IPC: E21B19/10
Filed: 1968-12-05
Abstract: 1,224,258. Boring earth. BYRON JACKSON Inc. 5 Dec., 1968 [26 Dec., 1967], No. 57897/68. Heading E1F. An elevator or spider comprises a slip bowl 15 having a frusto-conical wall portion 48 and a frusto-conical ramp portion 49, a centre slip 22,. and side slips 24, (26) hinged thereto, the slipshaving conical surfaces 55, 57 complementary to the surfaces of portions 48 and 49 and smooth pipe engaging surfaces 62. The slips are raised or lowered by handle 18. The free end of one of the side slips carries a rubber plug, a spring pressed plunger or a leaf spring to urge the free ends of the side slips apart. When the collar 46 of a pipe string or casing presses downwardly on the top 63 of the slips, the slips are urged downwardly pushing the free ends together and causing the upper part of the slips to pivot slightly inwardly about the bottom 56 of the ramp portion to engage the pipe or casing beneath the collar. The bowl may be rotatable mounted as shown in the elevator body 11.
Patent GB-1196260-A (GB)
Title: Data Processing Apparatus
IPC: G06Q20/04
Filed: 1967-12-20
Abstract: 1,196,260. Digital calculators; delay line stores. INTERNATIONAL BUSINESS MACHINES CORP. 20 Dec., 1967 [30 Dec., 1966], No. 57990/67. Headings G4A and G4C. In data processing apparatus, a keyboard feeds a one-field "entry" recirculating delay line store, and a timing ring selects a field of a multifield "main" recirculating delay line store, the contents of the entry store and the selected field of the main store being added and the result inserted into the selected field of the main store. In a bank machine, decimal digits from a keyboard (entered high order first) are coded in BCD form by OR gates, stored in entry latches, then serialized by gates and inserted into a recirculating entry delay line loop. The loop comprises a delay line capable of holding a field of ten digits, retiming triggers, and a one-digit shift register which is normally by-passed. Arrival of a digit in the entry latches causes digits already in the loop to be recirculated via the shift register for one revolution and the new digit to be inserted in front of them in the loop. A "double zero" key on the keyboard causes zero to be entered twice, by delaying reset of the entry latches (which normally occurs after each digit) until a zero entered into them has been inserted into the delay loop twice. The field in the entry delay loop can be passed low order first, serially by digit, parallel by bit, from the shift register to an adder to be added to any of twenty fields from a main delay loop, this loop comprising a delay line and a one-digit shift register for supplying the field to the adder in serial-parallel form. Manual selector keys controlling latches which control pluggable programme cards can select main loop fields for this, and the stackers to which cheques are to be directed. The adder comprises in order: conversion from BCD to qui-binary (by gates), complementing of the main loop operand digits if the operand signs are different or if a subtraction is required (e.g. to check a sum of cheque amounts against a deposit slip total), qui-binary addition, conversion from qui-binary to BCD, latching of the result digit, and serializing (by gates) for insertion of the result into the main loop source field. When complementing took place, recomplementing or end-around add follows as necessary, utilizing a marker bit stored in the main loop. The various main loop fields can be printed out, on three printers, in response to keys or detection of non-balance in the check referred to. Marker bits may be stored in the main loop to indicate fields already printed when a sequence of fields is being printed. The delay lines may be of the magnetostrictive or sonic type. Specification 1,196,259 is referred to.
Patent GB-1312838-A (GB)
Title: System for measuring light transmittance through absorpitive or diffusive media
IPC: G01N21/59
Filed: 1970-12-08
Abstract: 1312838 Measuring transmittance photo-electrically SUSQUEHANNA CORP 8 Dec 1970 [28 April 1970] 58172/70 Heading G1A In a device for measuring the transmittance or opacity of a medium, e.g. diesel exhaust smoke, located between a light source 22 and photocell 40, the source is surrounded by a member 20, e.g. a matt black disc, which provides a constant reference background. A luminescent diode 22 energized by an oscillator at 100 Hz provides light pulses whose attenuation through the medium is monitored by a photo-diode 40. The photo-diode output is first supplied to a capacitor 46 which removes any D.C. component caused by scattered light, and is then amplified to produce a direct indication of opacity on a meter 80. This meter first has to be calibrated at two points. This is done with the device clear of any smoke. First power is supplied to the circuitry with switch 38 open. Hence the light source is not actuated, and the output from capacitor 46 is zero. Potentiometer 48 is then adjusted to give a 100% opacity reading on the meter 80. Next, to derive a second calibration point, switch 38 is closed to actuate the oscillator, and potentiometer 82 is adjusted to give a 0% opacity reading.
Patent GB-1438310-A (GB)
Title: Sealed electrical contact unit capable of being magnetically  actuated and use thereof
IPC: H01H51/28
Filed: 1973-12-18
Abstract: 1438310 Sealed contact units; electromagnetic relays INTERNATIONAL STANDARD ELECTRIC CORP 18 Dec 1973 [3 Jan 1973] 58473/73 Heading H1N A sealed contact unit 1 which can be magnetically actuated has a plane base plate comprising a ring-shaped outer portion 4 joined by a glass ring 6 to a disc-shaped inner portion 5 and a flanged cover 3 which together form a flat housing within which is a permanently magnetized disc 7 electrically and mechanically connected to the outer portion 4 by a member 8. A hole 9 is provided in that portion of the disc 7 disposed over the inner portion 5 of the base plate and a magnetizable armature 10 mounted on the disc 7 by a weak spring 11 is movable through the hole as between the cover and the base plate. A magnetic holding relay Fig. 1 utilizes two contact units 1, 2 with their base plates facing each other and having an electromagnet 12, 13 and a flux guide 14 between them the two contact units being magnetically in series. The dotted line typically shows the magnetic circuit for holding the contact armature 10 against its cover 3 in the non-operated non- energized state and when the coil is excited the flux path is as shown by the solid arrowed line so that the armature is attracted to the inner portion 5 and held until reset by temporary polarity reversal of the winding 12. The armature of the contact unit 2 is similarly actuated.
Patent GB-1379397-A (GB)
Title: Variable damping means
IPC: F16F9/50
Filed: 1971-12-17
Abstract: 1379397 Resilient mountings UNIVERSAL OIL PRODUCTS CO 17 Dec 1971 58657/71 Heading A4U [Also in Divisions B7 and F2] A seat 4 Fig. 1 is mounted on a vehicle frame 2 by a scissors arrangement of arms 8, 9 bearing rollers (not shown), which travel in guide sections 10, 11, and by an hydraulic piston-cylinder unit 12, flow of liquid from which to a hydropneumatic reservoir 18 is regulated by a valve 14 which is varied automatically by a link 29 responsive to movements of the seat from a mean position relative to the frame, means being provided to delay the resetting of the valve. The link 29 rotates a sleeve valve element 15 so that a passage 61 leading to the reservoir comes more or less into register with the end 17 of a conduit 13 from the cylinder. The response of the link 19 may be adjusted Fig. 2 (not shown). The valve may instead be a needle valve Fig. 3 (not shown). The delay means are provided by another hydraulic piston-cylinder unit 31, Fig. 1 or 55, Fig. 4, connected between the link 29 and the frame, Fig. 1, or seat, Fig. 4, and in communication with a pressurized reservoir 36 through a check valve 33 and a restriction 34 in parallel, so as to delay return movement of the link 29 and therefore the sleeve valve element 15, to its mean position. When the seat 4 moves downwards from its mean position, the damping afforded by the valve 14 increases until the valve shuts completely. When the seat moves back towards its mean position, the increased damping is maintained for a while.
Patent GB-1376720-A (GB)
Title: Photographic material having at least two silver halide layers
IPC: G03C7/24
Filed: 1971-12-21
Abstract: 1376720 Photographic silver halide material containing a silver bleach inhibitor EASTMAN KODAK CO 21 Dec 1971 [22 Dec 1970(2)] 59271/71 Headings G2C and G2E A colour photographic material comprises a support bearing a picture recording photographic unit comprising at least one light-sensitive silver halide emulsion layer and an auxiliary lightsensitive silver halide emulsion layer which has a different speed and/or sensitivity and/or which is separated from the picture recording unit by a filter layer such that the auxiliary layer does not form a latent image upon latent image-forming exposure of the picture-recording unit, the material also comprising at least one ballasted silver bleach inhibitor which is an organic compound having an acidic mercapto or an acidic selenyl group in acid or water-soluble salt form or a precursor which forms such group on hydrolysis by alkali and a ballasting group and which has a molecular weight of at leat 125 excluding the mercapto or selenyl group and being such that it satisfies a silver bleach preventing test disclosed in the Specification, the inhibitor being present in the auxiliary layer or in a layer contiguous to the auxiliary layer but is not contiguous to any silver halide emulsion layer in the photographic unit. The inhibitor may have one of the formulae:- where a is 0 or 1 to 6; X is S or Se; R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are each No 2 , halogen, optionally substituted alkyl or cycloalkyl having 5-18C, cyclohexadienyl, optionally substituted aryl, a thio group having 3-22C, an amido group having 4- 22C, a carbonyl group, a carbamoyl group, alkoxy, benzyloxy or aryloxy; R<SP>5</SP> is H or 1-22C acyl; Y<SP>#</SP> is a basic cation; and A<SP>1</SP>, A<SP>2</SP>, A<SP>3</SP> and A<SP>4</SP> are each carbonyl, thiocarbonyl, carboxymethylene, 3-6C carbocyclic ring which can be part of a fused ring structure or a 3-6 membered heterocyclic ring containing at least 1C and 1-5 atoms selected from N, O, S or Se which ring can have other carbocyclic and heterocyclic rings fused to it, the values of these substituents being subject to certain provisoes disclosed in the Specification. Numerous examples of silver bleach inhibitors are listed. The silver halide emulsion in each picture recording unit may contain a non-diffusing colour coupler. The auxiliary layer may be sensitized so that its sensitivity peak is in a region of minimum sensitivity between the sensitivity peaks of two picture recording units of adjacent sensitization. The silver halide in the auxiliary layer may have a grain size of 0.05 to 0.2 microns. The auxiliary layer may be used to form a sound track. The above material may be exposed to form a latent first image in the auxiliary layer and a latent second image in the picture recording unit and developed with a single developer to form a bleachresistant first silver image and a non-bleach-resistant second silver image.
Patent GB-1407260-A (GB)
Title: Production of yeast cells
IPC: C12N1/32
Filed: 1972-12-27
Abstract: 1407260 Yeast KYOWA HAKKO KOGYO KK 27 Dec 1972 [28 Dec 1971] 59663/72 Heading C6F Torulopsis methanosorbosa (ATCC 20361) is cultured in a nutrient medium containing methanol, ethanol or sorbose as carbon source and the yeast cells thus obtained are recovered. Methanol (when used) may be repeatedly added to the medium so that a concentration of 1 wt per cent so maintained. The medium may include calcium chloride, phosphate or acetate, and many other specified constituents.