baber/WOPTO huggingface dataset:
Patent GB-1223496-A (GB)
Title: Improvements in or relating to flexible harrows
Inventor: AITKENHEAD WILLIAM
IPC: A01B19/08
Filed: 1968-09-18
Abstract: 1,223,496. Flexible harrow. W. AITKENHEAD. 10 Sept., 1969 [18 Sept., 1968], No. 44238/68. Heading A1B. A flexible harrow of the type comprising a plurality of tine bearing elements interlinked to form a mat has a plurality of harrow units connected side by side to a common tractor hauled whiffletree F by means of chains H which are of graduated lengths across the width of each unit. The shortest of the chains being connected to corresponding front corners of each unit so that each of the several units is equally skewed with respect to the towing direction. The units are skewed so that one rear corner of each unit is approximately directly behind the adjacent front corner of the successive unit (if any). A particular known type of harrow unit is described. (For Figure see next page.)
Patent GB-1074796-A (GB)
Title: Improvements in or relating to side channel centrifugal pumps
IPC: F04D5/00
Filed: 1964-10-30
Abstract: 1,074,796. Circumferential flow pumps. SIEMEN & HINSCH m.b.H. Oct. 30, 1964 [Oct. 31, 1963], No. 44295/64. Heading F1C. In a circumferential flow pump having a side channel 1 communicating with an open impeller wheel (not shown) provided with straight or singly curved vanes, at least one flow baffle rib 6, extending from the bottom of the channel over about one half to three quarters of the channel height, is provided. This construction reduces the power required to drive the pump at zero and small delivery rates. The ribs 6 are arranged in the radially central zone of the channel, the inner and outer vane-free zones each being about one quarter of the channel width. The ribs are of single curvature and have their free longitudinal edges extending parallel to the plane of the impeller. The distance between the end of the suction aperture 4 and the beginning of the first rib is at least two to three vane pitches of the impeller wheel, and the distance between the beginning of the discharge aperture 5 and the end of the last rib is at least one to two vane pitches. The ribs 6 may be replaced by a single rib extending concentrically with the channel 1.
Patent GB-1286489-A (GB)
Title: Treating of semiconductor elements
IPC: H01L21/322
Filed: 1969-09-08
Abstract: 1286489 Semi-conductor devices BROWN BOVERI & CO Ltd 8 Sept 1969 [10 Sept 1968] 44338/69 Heading H1K A semi-conductor device including a cathode layer penetrated at spaced regions by the next adjacent semi-conductor layer which is of the opposite conductivity type to the cathode layer, e.g. to provide a shorted emitter arrangement in a thyristor, is provided at its anode side and at an annular area of the cathode side spaced from the penetrating regions with a getter substance. The device may be made of Si, and the getter substance, e.g. boron trioxide or phosphorus pentoxide, may be used to remove impurities such as Au, Cu or Fe therefrom.
Patent GB-1092713-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B17/30
Filed: 1964-10-30
Abstract: 1,092,713. Roll film magazine; camera. EASTMAN KODAK CO. Oct. 30, 1964 [Oct. 30, 1963], No. 44355/64. Heading G2A. A roll-film magazine comprises a cylindrical container 14 having closed ends, a slot 16 providing a film passage-way, and a mechanically detectable code indicator (e. g. detent 36) at least one end of, and within the standard dimensions of, the container, the location of the code indicator indicating a particular characteristic (e. g. emulsion speed) of the film. A second code indicator (e. g. detent 37) may be present to indicate processing characteristics of the film to allow mechanical sorting of the magazine. A camera comprises a housing 30 having a chamber for the above magazine, a cover 44 pivoted to the housing, and a code senser 52 for the code indicator on the magazine connected to the cover (e. g. by lever 58) so that the senser is engaged and arrested by the code indicator as the cover is closed; in the embodiment the senser comprises a spring-like arm 66, biased toward the magazine 32, the arm being moved across the slit 68 on opening the cover, the pulled back by a spring (62) on closing the cover, until it is arrested by the detent 36 in the magazine. The code senser is connected to rods which mask a photo-cell governing a diaphragm in the camera to an extent dependent upon the characteristic of the film in the magazine.
Patent GB-1078558-A (GB)
Title: Vacuum device
IPC: G01M3/20
Filed: 1965-10-25
Abstract: 1,078,558. Testing for leaks. NATIONAL RESEARCH CORPORATION. Oct. 25, 1965 [Oct. 26, 1964], No. 45132/65. Heading G1S. [Also in Divisions F1 and F2] A vacuum system, for use in detecting leaks in a vessel connected to an evacuation line 12 comprises a low vacuum line 20 and a high vacuum line 22 connectable in sequence to the line 12 by operation of valves 40, 42. The valves 40, 42 (see Division F2) are operated by an associated toggle mechanism operated manually by moving a lever 34 or under certain conditions by an electric motor 44. When a vessel is to be tested for leaks the lever 34 is first moved to a position in which the valve 40 is open and the valve 42 is closed, whereby a roughing pump 24 connected to the low vacuum line 20 commences to evacuate the vessel. If the vessel has a bad leak the pressure in the evacuation line 12 does not cause operation of a pressure gauge 38, and a timer T started by the opening of the valve 40 operates to complete the circuit to a gross leak lamp L. Provided the test vessel is free of bad leaks a rough vacuum is produced in the vessel and the pressure gauge 38 operates to cause actuation of an electric motor 44 arranged to actuate the toggle mechanism in a manner which slowly closes valve 40 and slowly opens valve 42. The operation of the valves 40, 42 connects the vessel to the high vacuum line 22 which is in communication with a mass spectrometer 26. The detection of fine leaks is then accomplished by spraying the exterior of the test vessel with a tracer gas such as helium and operating the spectrometer to detect the presence of the helium in the high vacuum line 22. A liquid nitrogen cold trap 28 is connected in the high vacuum line 22 and has an outlet port 48 connected to a high vacuum system 30. When the valves 40, 42 are changed over a solenoid 482 is energized to raise a magnet 481 which allows an orifice plate 48 to obscure the port 284 and thereby reduce the speed of evacuation during operation of the spectrometer. The high vacuum system 30 comprises an air cooled diffusion pump 30 and a forepump 32.
Patent GB-1169011-A (GB)
Title: Thermostable Phenolates
Inventor: ISMAIL MOHAMED ROSHDY
IPC: C07F7/22
Filed: 1966-10-10
Abstract: 1,169,011. Organometallic phenolates. DYNAMIT NOBEL A.G. 10 Oct., 1966 [11 Oct., 1965], No. 45271/66. Headings C2C and C2J. The invention comprises phenolates having the structural formula wherein R represents an optionally substituted alkenyl, aryl or aryloxy group, or together with another R represents a diaryldioxy group, n has a value of from x-1 to 0, Z represents aluminium, boron, titanium, germanium, tin, lead, phosphorus, arsenic or antimony, x is the valency of Z, R<SP>1</SP> represents hydrogen or an optionally substituted alkyl, aryl, alkoxy, aryloxy, arylimine or alkylimine group, R<SP>2</SP> represents a hydrogen atom, a constituent condensed ring, or one or more substituents each of which is a cyano group, a halogen atom, an alkyl group, an alkoxy group or an aralkyl group having the general formula C 6 H 5 (CH 2 )m, wherein m is greater than or equal to zero and wherein a hydrogen atom of the -(CH 2 ) m - group is optionally substituted by an alkyl or aryl group. The process for the preparation of the phenolates comprises reacting a phenolic compound of the structural formula with a reactive compound of tho general formula wherein Y represents a hydrogen atom, a hydroxyl group, or a halogen atom; or with boron trioxide. Suitable phenolic compounds and suitable reactive metal compounds are listed in the Specification. The reaction can be accelerated by use of alkaline catalysts such as alkaline alcoholates. The reaction may also be effected by use of a solvent capable of forming an azeotrope with the liberated alkanol. Typical phenolic compounds are 2-hydroxy-, 2- hydroxy - 4 - methoxy, 2,2<SP>1 </SP>- dihydroxy - , 2,21- dihydroxy-4-methoxy and 2,2<SP>1</SP>-dihydroxy - 4,41- dimethoxy - benzophenones; o - hydroxy-acetophenone, alkyl and aryl esters of salicylic acid, salicylaldehyde, salicylanilide and peonol. In an example (4) 2,2<SP>1</SP>-dihydroxy-diphenyl is reacted with PCl 3  and the 2,2<SP>1</SP>-diphenylene phosphorous acid chloride is reacted with 2,2<SP>1</SP>- dihydroxy - 4 - methoxybenzophenone. In other examples there are prepared: di-n-butyldi - (4 - methoxy - 2 - benzophenonoxy) - tin; di - n - butyl - di - (4 - methoxy - 2,2<SP>1</SP> - benzophenone - dioxy) - tin; tetra - (4 - methoxy - 2 - benzophenonoxy) - titanium; tri - (4 - methoxy - 2 - benzophenonoxy - aluminium; tri - (4 - methoxy - 2 - benzophenonyl) - phosphite; 2,3,4,6 - tetrachlorophenoxy - di - (4 - methoxy - 2-benzophenonoxy) - aluminium; tri - (4 - methoxy - 2 - benzophenonoxy) - boron; di - n - butyl - di - (anilide - oarbonyl - 2 - phenoxy) - tin; di - n - butyl - di - (aldehyde - 2 - phenoxy) - tin; tri - (aldehyde - 2 - phenoxy) - aluminium; tetra - (aldehyde - 2 - phenoxy) - titanium.
Patent GB-1372954-A (GB)
Title: Mower with adjustable suspension system for mower unit
IPC: A01D34/64
Filed: 1972-10-03
Abstract: 1372954  Motor mowers DEERE & CO 3 Oct 1972 [4 Oct 1971] 45546/72 Heading A1F An electrically powered wheeled mower has a main frame 10, driving wheels 14 and steering wheels 12. Supported between the wheels is the mower unit consisting of a frame 32 carrying electric motors 36 and cutting blades 34. By means of a hand lever 66, the motor unit can be raised or lowered into the parking or working positions the latter being adjustable by handwheel 92. The mower unit is carried on a parallelogram linkage formed by two pairs of links 42 and 48 and is partially counter balanced by spring 56. It is maintained in a level condition by the parallelogram linkage formed by links 60, 62 and 64. Vertical position of the mower unit is controlled by the handlever 66 pivotting at 68 and connected at 74 to one end of a cable 76, the other end being attached to the mower unit, after passing over the pulley 78. In its rearward position, which sets the power unit in its raised position, the handlever can be latched behind stop 82 as in Fig. 1. As shown in Fig. 2, the forward stop position occurs when the arm 87 makes contact with abutment sleeve 69. If the pivot 96 is moved rearward by rotation of the handwheel 92 then the arm 87 will swing about the sleeve 69 and cause the lower pivot 74 to move forward and to raise the mower unit. By this means the working height of the mower unit can be infinitely varied to a required pre-set position. To avoid scalping of the grass being mowed, the mower unit has auxiliary wheels 40 and roller 38.
Patent GB-1521710-A (GB)
Title: Reservoir tank
IPC: F15B1/26
Filed: 1975-11-05
Abstract: 1521710 Reservoir tank (closures) NISSAN MOTOR CO Ltd 5 Nov 1975 [8 Nov 1974] 45928/75 Heading B8T A reservoir tank 12 for an hydraulic system has an aperture 16 in its top 14, one portion of the aperture being occupied by a filling chamber 46 open to the outside of the tank and to the space 20 between the top 14 and the surface of liquid 10 contained in the tank, the remainder of the aperture being occupied by an outlet chamber 48 comprising a passage 32 and a chamber 49 and extending below the surface of the liquid 10. In the preferred embodiment of Fig. 2 both chambers 46, 48 are contained within a hollow member 22. The passage 32 may be circular (Fig. 5) or segmental (Fig. 6) and an aperture 64 having a conduit 66 may also be provided in the top 14 for fluid return when the tank 12 forms part of an hydraulic circuit (not shown).
Patent GB-1375037-A (GB)
IPC: C09B67/42
Filed: 1971-10-02
Abstract: 1375037 Slurries of benzo- and naphthotriazoles CIBA-GEIGY AG 2 Oet 1972 [2 Oct 1971] 45935/71 Heading C2C A process for preparation of a slurry containing 10-40% by weight, based on the total weight of the slurry, of one or more compounds of the general formula wherein A is an aromatic carbocyclic radical which contains at most two rings and may be substituted by halogen, alkoxy, sulphonic acid or carboxy groups; B is a benzene or naphthalene radical in which two vicinal C atoms are bound to N-atoms of the triazole ring and which may be substituted by halogen, alkyl, sulphonic acid alkali metal salt groups or carboxyl groups and R is a sulphonic acid alkali metal salt group, a cyanide group or H, comprises mixing the wet filter-cake obtained during the preparation of the compound with such quantity of dispersing agent that the resultant slurry is thixotropic and has reduced tendency so settle out on static storage and has a Brookfield viscosity at equilibrium of 2000-10,000 centipoise at 6 revs./ min., 1000-3500 at 12 revs./min., and up to 2000 at 60 revs./min. The dispersing agent is preferably the sodium salt of the condensation product at naphthalene sulphonic acid and formaldehyde and may be added in 0À1-5% by weight based on the weight of the wet filtercake. A gelling agent such as beneficiated magnesium silicate and an electrolyte such as sodium chloride, sulphate or carbonate or the corresponding K salts may also be added. Preferred optical brighteners for the preparation of slurries are 4 - (2<SP>1</SP> - p - chlorophenyl - vinyl) - 1 - (naphthotriazole-2<SP>11</SP>)-3-cyanobenzene and 4-(2<SP>1</SP>- phenyl - vinyl) - 1 - (naphthotriazole sulphonic acid Na salt)-benzene 3-sulphonic acid Na salt
Patent GB-1314128-A (GB)
Title: Electrophotographic photoconductive material
IPC: G03G5/00
Filed: 1971-10-04
Abstract: 1314128 Photoconductive composition BANK XEROX Ltd 4 Oct 1971 [14 Oct 1970] 46169/71 Heading H1K A photoconductive composition comprises a mixture of photoconductive TiO 2  and a photoconductive cadmium pigment. Rutile is the preferred form of TiO 2  and the cadmium pigment may comprise CdS optionally mixed with CdSe, CdCO 3 , ZnS, and BaSO 4 . A resin binder, e.g. a mixture of styrene-alkyd resin and a polyisocyanate resin or copoly vinyl chloride-vinyl acetate may be used to form a dispersion of the composition and coated on an aluminized resin substrate.
Patent GB-1222112-A (GB)
Title: Composition for scintillation counting
Inventor: SENA EDWIN ANDRES
IPC: C09K11/06
Filed: 1968-01-31
Abstract: 1,222,112. Uses of luminescence. E. A. SENA. 31 Jan., 1968 [1 Feb., 1967], No. 46341/70. Divided out of 1,222,111. Heading C4S. A composition comprising at least one surfactant and a co-surfactant forms, when mixed with a scintillation solvent, primary scintillator and radio-active sample, a thermodynamically stable, high efficiency counting composition which exhibits no chemiluminescence or phosphorescence and contains no free internal phase fluid. The subject-matter is disclosed in Specification 1,222,111.
Patent GB-1521039-A (GB)
Title: Hook bolts
IPC: F16B35/06
Filed: 1976-01-26
Abstract: 1521039 Hooks CABLE SUPPORTS Ltd and S A BRADBURY 26 Jan 1976 [25 Oct 1974] 46373/74 Heading E2A [Also in Division F2]  A hook bolt comprises a shank 10 with an external screw thread 11 and having an integral arm 13 at one end, the shank and arm being formed from a fibre-reinforced plastics and also being reinforced by a metal stud 14 integral with a metal arm 16 both wholly enclosed within the plastics material. The metal stud 14 preferably has a screw thread 15 extending along the greater part of its length to key with the plastics shank. The arm 13 may project transversely from a head 12 formed at the end of the shank and may have a generally rectangular cross section with serrations 18.
Patent GB-1205449-A (GB)
Title: New synthetic mordenites and process for the production thereof
Inventor: FUERTIG HELMUT
IPC: C01B7/00
Filed: 1967-10-11
Abstract: 1,205,449. Synthetic mordenite. FARBENFABRIK WOLFEN VEB. 11 Oct., 1967, No. 46409/67. Heading C1A. Synthetic mordenites are prepared by mixing an aqueous sodium aluminate solution with a solid silicic acid, the particles of which have a size of less than 50 Ám, to give a mixture with the constitution, expressed as mole ratios of the oxides: Na 2 O: Al 2 O 3  .. .. .. > 1 Na 2 O: SiO 2  .. .. .. 0À08-0À35 SiO 2 : Al 2 O 3  .. .. .. 10-100 H 2 O: Na 2 O .. .. .. 10-250 and this mixture is heated in a closed vessel for 4-96 hours at a temperature of 110-250‹ C. The solid silicic acid may be obtained by precipitation from aqueous solution by the reaction of waterglass with acids or by the pyrolysis of vapour phase hydrolysis of a volatile silicon compound.
Patent GB-1282795-A (GB)
Title: Recovery of acetylene from gas mixtures
Inventor: SENNEWALD KURT
IPC: C07C7/11
Filed: 1970-09-30
Abstract: 1282795 Selective absorption of acetylene KNAPSACK AG 30 Sept 1970 [24 Oct 1969] 46517/70 Heading B1L [Also in Division C5] Acetylene is recovered from a gaseous mixture by its selective absorption in a solvent having a major proportion by weight of dimethylphosphine oxide, methylethylphosphine oxide, or diethylphosphine oxide or any mixture thereof. The solvent may be used with dimethylformamide or water. Absorption may be carried out between 1-10 atm abs. and between 20-50C whilst desorption of the solvent may be effected at 0.001-1 atm abs and 30-100C.
Patent GB-1094806-A (GB)
Title: Unsaturated steroid compounds and processes for their preparation
IPC: C07J75/00
Filed: 1965-11-04
Abstract: Novel steroids having the formula <FORM:1094806/C2/1> wherein R and R1 each represent an alkyl radical containing 1-4 carbon atoms, are obtained by reacting a 13b ,17a -dialkyl-4,5-seco-18,19 - dinor - pregna - 9,11 - diene - 3,5,20 - trione of the general formula <FORM:1094806/C2/2> wherein R and R1 are as defined above, with a dehydrating agent, e.g. sodium t-amylate.  Pharmaceutical compositions having progestomimetic, progestative, anti-androgenic and anti-estrogenic activities and containing the above compounds are administered orally, by injection or rectally.
Patent GB-1261523-A (GB)
Title: Linear stepper motors
Inventor: JOYCE GORDON CHARLES
IPC: H01L41/09
Filed: 1968-10-02
Abstract: 1,261,523. Piezo-electric motors; linear motors. DEFENCE, SECRETARY OF STATE FOR. 1 Oct., 1969 [2 Oct., l968], No. 46779/68. Heading H2A. A linear stepper motor comprises first and second magnetically excited gripping members connected by a piezo-electric member, one gripping member, the connecting member and the other gripping member being cyclically energized to produce motion. As shown in Fig. 1, gripping members 7, 9 connected by a piezoelectric cylinder 11 rest in a V-shaped groove 3 in a rail 5 and each comprises a pair of polepieces 13, 15 with a solenoid 17 between them which, when excited, causes the polepieces to grip the groove. Fig. 2 shows another embodiment wherein opposite ends of the piezoelectric -cylinder 11 are connected to rods 21, 23 each supported in a bearing 25 adjacent to which is located a brake consisting of a pair of pivoted polepieces such as 31 which may be drawn together by a solenoid to grip the rod. In the further embodiment shown in Figs. 4 and 5 a piezo-electric cylinder 79 is located in a V-shaped groove in. a rail 43 consisting of a central block 45 and side walls 47, 49 of soft iron, the block being separated from the side walls by brass spacers 51, 53. Located in the base of the rail is a pair of solenoids 63, 65 with cores 59 connected to the side walls and block 45 so that solenoid 63 has a magnetic circuit including wall 49 and block 45 whilst the magnetic circuit of solenoid 65 includes wall 47 and block 45. The cylinder 79 has triangular end pieces 67, 69 each comprising a soft iron portion and a brass portion, e.g. end-piece 67 has a soft-iron portion 73 bridging wall 47 and block 45 and a brass portion 71 engaging wall 49. Thus, energization of solenoid 65 will cause it to grip wall 47. The end piece 69 is arranged to grip wall 49 on energization of solenoid 63. Connection to the cylinder 79 is made via the rail 43 and a brush 83 co-operating with a gold wire 85. As before, cyclic energization of one solenoid, the cylinder and the other solenoid produces movement of the cylinder along the rail. The electromagnetic gripping members may incorporate permanent magnets to hold the motor stationary when the solenoids are de-energized, the magnets being opposed by current passing through the solenoids.
Patent GB-1005467-A (GB)
Title: Improvements in arc welding electrodes
Inventor: BYSTRAM MIKOLAJ CYPRIAN THOMAS
IPC: B23K35/36
Filed: 1962-12-11
Abstract: In order to minimize the carbon content of an austenitic stainless steel weld deposited by an electrode having a basic flux coating and a low carbon austenitic stainless steel core, the coating includes at least 0.5% of one or more reactive oxides selected from the oxides of manganese, nickel, chromium iron and molybdenum or a corresponding amount of a salt of the oxide when the oxide is amphoteric. Specified salts are potassium chromate and potassium permanganate.  The maximum carbon contents of the core wire and the deposit are 0.04% when the flux coating is free of columbium and 0.08% when the flux coating contains sufficient columbium to provide in the weld a columbium to carbon ratio of between 10:1 and 15:1.  Examples of coating compositions for use on core wires having less than 0.04% carbon are: -  .(1).15-60%.calcium, barium, magnesium or ...manganese carbonate ..15-60%.calcium, sodium or sodium alu- ...minium fluoride ..0-60%.powdered chromium, ferrochro- ...mium, nickel nickel-chromium, ...ferromolybdenu, ferrotitanium, ...ferrosilicon, ferromanganese or ...iron ..0.5-15%.oxide of nickel, chromium, man- ...ganese iron or molybdenum ..0-15%.oxide of titanium, silicon, alu- ...minium or zirconium ..0-3%.extrusion aid  .(2).20%.chalk ..20%.fluorspar ..5%.felspar silica or bentonite ..13%.chromium ..15%.molybdenum ..12%.ferromolybdenum ..3%.iron ..6%.rutile ..4%.oxide of nickel or manganese ..2%.extrusion aid  .(3).24%.chalk ..30%.fluorspar ..13%.chromium ..15%.molybdenum ..12%.ferromolybdenum ..1%.ferromanganese ..4%.manganese oxide ..1%.extrusion aid  The core wire is 0.03% C, 19% Cr, 9% Ni, 1% Mn, 0.5% Si, balance iron and impurities. The Specification also describes the effects of adding specified reactive oxides to a flux coating of .32%.chalk .39%.fluorspar .5%.chromium .10%.nickel .11%.ferrocolumbium .2%.ferromanganese .1%.extrusion aids on a core wire similar to the above but having 0.06% C and also to a flux coating of .36%.chalk .44%.fluorspar .5%.chromium .12%.nickel .2%.ferromanganese .1%.extrusion aids on a steel core wire containing 18% Cr, 8% Ni and 0.03% C
Patent GB-1004064-A (GB)
Title: Method of producing a non-sticking dressing material and dressing material produced by this method
IPC: A61L15/20
Filed: 1963-11-28
Abstract: A water-proofed absorbent cotton gauze which has permeability to air and secretions is prepared by impregnating the absorbent cotton gauze (or fibres used in its manufacture) with a solution or dispersion of 1-30 gm/l of aluminium di- or tri-abietate.  The impregnating liquid may also contain 1-100 gm/l of paraffin oil and 1-80 gm/l of a silicone.  The solvent may be an aliphatic hydrocarbon, benzene, toluene, trichloroethylene, perchloroethylene, or carbon tetrachloride.  The gauze is pressed or wrung after impregnation, dried and sterilized.ALSO:A water-proofed absorbent cotton gauze which has permeability to air and secretions is prepared by impregnating the absorbent cotton gauze (or fibres used in its manufacture) with a solution or dispersion of 1-30 gm/1 of aluminium di- or triabietate.  The impregnating liquid may also contain 1-100 gm/1 of paraffin oil and 1-80 gm/1 of a silicone.  The solvent may be an aliphatic hydrocarbon, benzene, toluene, trichloroethylene, perchloroethylene, or carbon tetrachloride.  The gauze is pressed or wrung after impregnation, dried, and sterilized.