baber/WOPTO huggingface dataset:
Patent GB-1425439-A (GB)
Title: Microwave powder modulator/leveller control circuit
IPC: H03B9/12
Filed: 1974-05-10
Abstract: 1425439 Modulation; test signal generators HUGHES AIRCRAFT CO 10 May 1974 [4 June 1973] 20793/74 Headings H3R and H4L A swept frequency oscillator 12 has its output fed to a waveguide modulator 18 which controls the attenuation of the signal passing through it, the output from the modulator being coupled to a detector 22 to provide an output proportional to the power level in the modulator which is compared with a reference signal in level control circuit 26 to produce an error signal for controlling the attenuation of the modulator, the error signal being applied to a control winding in the modulator. A 1 kc/s. square wave generator 42 or an external source may be selected by a switch 40 to provide amplitude modulation of the swept frequency signal, the modulating signal being applied by circuit 30 to the modulator control winding also. As described this winding controls the attenuation in the waveguide. The retroactive control loop adjusts the output to give a constant level over the whole sweep range, and an indicator circuit 36, 38 gives an indication when this condition is attained. The frequency of the oscillator 12 is swept by a sawtooth generator 14 which also provides a frequency marker on the output signal via circuit 32. Details of the level control circuit 26, the indicator circuit 28, the modulation circuit 30, frequency marker circuit 32 are given, Figs. 4, 6, 7 (not shown).
Patent GB-532453-A (GB)
Title: A process and apparatus for the manufacture of moulded bricks
IPC: B27N3/20
Filed: 1939-07-18
Abstract: 532,453. Moulding bricks. EHRENHAFT, V. July 18, 1939, No. 20808. [Class 87 (ii)] Bricks or slabs are prepared from material, such as a mixture of wood-wool and cement, which tends to increase in volume on setting, by compressing the material in a press to form bricks or slabs which are then displaced laterally from the press into a retaining means comprising a series of appropriately dimensioned superimposed retaining devices in which they are retained until set and by which they are prevented from expanding beyond a pre-determined limit during setting. As shown in Fig. 1, a mass 2 of material is placed in a mould 4 and covered by a plate 5 to which pressure is applied by a die 6 working in guides 7. The mould 4, together with the die 6 and guides 7, is then moved laterally into the retaining means which comprises a series of three-sided angle-iron frames 8, Figs. 1 and 3, each of which is open at the side next the mould and is secured at the opposite side to a vertical member 12. The plates 5 are provided with transverse grooves to receive bars 10 which extend at right angles from the closed side of the frame and are provided with pegs 11 adapted to be connected to the pegs of the next frame. The member 12 is lowered through a distance equal to the depth of a mould before each operation of the press. To facilitate removal of the slabs from the retaining means, the frames 8 may be mounted so that they can be moved vertically through a small distance relatively to the member 12. In the modification shown in Fig. 7, the mould 19 is provided with a vertically movable side 22 and is reciprocated by a rod 20 beneath a die 38. After compression, the side 22 is raised and the brick or slab pushed out by an ejector 23 into the retaining means 24 which comprises a series of chambers form by partitions 26 separated by spacing members 27 ; a shutter 29 is then lowered to close the open side of the chamber, and the remaining means 24 is raised through a distance equal to the depth of one chamber. The mould 19 may be stationary, the die 38 being raised sufficiently after each stroke to allow the mould to be repelled. Two thin slabs may be moulded simultaneously in one mould 19, a metal partition being placed between the two layers of material, which are then compressed and ejected simultaneously. The material may be compressed to a depth slightly less than that of the finished article, so that it can expand slightly in the retaining means, and the die may be raised slightly before the ejection of the slab.
Patent GB-1309948-A (GB)
Title: Benzodiazepine derivatives processes for producing them and compo sitions containing them
IPC: C07D243/36
Filed: 1971-04-19
Abstract: 1309948 Benzodiazepines SUMITOMO CHEMICAL CO Ltd 19 April 1971 [3 Feb 1970 5 Feb 1970 24 June 1970 (2)] 20827/71 Heading C2C Compounds of the general formula (R 1 =H, halogen, NO 2 , CN, CF 3 , C 1-4  alkoxy; R 2 =Py, R 5 R 6 Ph; R 5,6 =H, halogen, CF 3 , Me, Et; R 3 =H, C 1-4  alkyl; R 4 =C 1-4  alkyl, C 3-6  cycloalkyl, C 3-6  cycloalkyl-C 1-4  alkyl, aryl, aralkyl; m=1, 2; n=1-4) and their salts are preparedby (a) introduction of the 1-substituent, (b) oxidizing the corresponding compound in which m=0 or 1, n=2 or 3 and R 2  is not Py, (c) indole ring-expansion, (d) reacting a compound of the formula with a compound of the formula or (e) removing Z from a compound of the formula  (n<SP>1</SP> = 2, 3; Z = nitrogen protecting system), optionally followed in each case by salt formation. The above compounds are tranquillizers, sedatives, muscle relaxants, spasmolytics and hypnotics, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier. Reference has been directed by the Comptroller to Specification 972,968.
Patent GB-572266-A (GB)
Title: Improvements in or relating to the manufacture of frames for spectacles
IPC: B29D12/02
Filed: 1943-12-14
Abstract: 572,266. Moulding spectacle frames. MOSSON, H. Dec. 14, 1943, No. 20933. [Class 87 (ii)] Spectacle frames are moulded from plastic material in a mould, fitted with metal plates corresponding to the lenses which will eventually be fitted in the frames, plungers being provided to bear against the plates at points adjacent to their centres, to serve to expel the frames when moulded. In the construction described, the mould is in two parts a, b. The part a has two channels c .corresponding to the eyepieces, two bosses d corresponding to the apertures of the eyepieces and a channel e corresponding to the bridge of the frame. The part b of the mould has bosses f corresponding to bosses d on a and a channel g corresponding to a part of the bridge of the frame. Both parts of the mould a, b are drilled to receive two pins h, j to position the metal plates k ; the pins may be of different diameters, and may be asymmetrically arranged. The ejection plungers m bearing on the metal plates k are slidably mounted in part a. Grooves are formed in the frame by the plates to accommodate the lenses. The edges of the metal plates are disengaged from these grooves by springing the frame off the plates.
Patent GB-475290-A (GB)
Title: Improvements in machinery for the production of concrete pipes, poles, and the like, also applicable for lining pipes, cylinders, and the like
IPC: B28B21/34
Filed: 1936-07-29
Abstract: 475,290. Moulding or lining concrete pipes &c. centrifugally. FAIRWEATHER, W. C. (Carter, R. W.) July 29, 1936, No. 20948. [Class 87 (ii)] A machine for centrifugally moulding or lining concrete pipes, poles, &c. comprises a resiliently-supported vibratory frame 7 carrying a plurality of rotary shafts 1 provided with rollers 4 supporting and driving the moulds 5, and power means unsupported by the frame 7 and connected to at least one of the shafts 1. The frame 7 is supported on base girders 14 by means of rubber pads or by springs 9 which are supported on adjustable levers fixed on the girders 14 so that the height of the frame 7 may be varied. An electric motor 20 is mounted on a frame 19 in a recess in the foundations and is connected through a variable speed gear 21 to the middle shaft 1. The motor also drives a pair of vibrators consisting of eccentric shafts 23 mounted on the frame 7. Screeding bars 25 for the moulds are adjustably supported by pairs of turnbuckle devices 26 pivoted on the girders 14. The bearings of the shafts 1 are adapted to be shifted longitudinally on the frame 7 so as to accommodate moulds of different diameter.
Patent GB-705059-A (GB)
Title: Process for preparation of an edible composition from honey and milk
IPC: A23C9/156
Filed: 1950-08-25
Abstract: Dietary and medicinal honey-milk preparations are made by mixing honey warmed to not more than 40 DEG C with a larger proportion of warmed whole or skimmed milk powder, dehydrating the mixture at not more than 45 DEG C in air, allowing the dried product to cool slowly, and grinding it to a powder, or are made by dissolving honey in lukewarm milk, dehydrating the solution under reduced pressure at a temperature not exceeding 80 DEG C, and grinding the dried product to a powder.  Glucose, lactose, or maltose may be incorporated.  The powder may be compressed to convenient tablets.  Preparations suitable for dissolving in water consist of 20 per cent of honey, 10 per cent of lactose, 70 per cent of whole milk powder and 25 per cent of honey, 15 per cent of maltose, 60 per cent of skimmed milk powder.
Patent GB-1384865-A (GB)
Title: Stereospecific reduction of 9,15-dioxo prostanglandins
IPC: C07C405/00
Filed: 1972-06-06
Abstract: 1384865 Prostanoic acids G D SEARLE & CO 6 June 1972 [11 June 1971] 21199/74 Divided out of 26351/72 Heading C2C A mixture of a major amount of a 9α,15α- dihydroxyprostanoic acid and a minor amount of a 9α,15#-dihydroxyprostanoic acid is prepared by contacting a 9,15 -dioxoprostanoic acid with an alkali metal perhydro-9b-boraphenalylhydride. Reference has been directed by the Comptroller to Specifications 851,827, 1,040,544, 1,097,533, 1,198,071, 1,285,372, 1,292,661, 1,299,136 and 1,332,262.
Patent GB-1189106-A (GB)
Title: Digital Actuator
Inventor: KEALY WELLESLEY ASHE
IPC: F15B21/08
Filed: 1966-08-19
Abstract: 1,189,106. Digital actuators. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 11 Aug., 1967 [19 Aug., 1966 (2); 8 May, 1967], Nos. 37373/66, 37375/66 and 21321/67. Heading G4H. Apparatus for displacing a shaft 118 through an angle in response to a combination of binary input signals comprises a series of electromagnets each having a multi-armed armature 112d-116d engaging with a limiter 112t-116t on the next unit. The end armature 111d is secured to the end wall of the housing and the armature 116d at the other end engages a limiter 132t secured via boss 133 to the output shaft 118. When an electromagnet is energized the armature moves from position A, Fig. 2, to position B. The angles are weighted according to the binary scale and spring 120 urges all the armatures to position A. The angular displacement produced by the energized electromagnets are added by the linkage. The inputs are from corresponding flip-flop circuits serving to store the input command.
Patent GB-695808-A (GB)
Title: Improvements in or relating to shoe stiffener heating apparatus adapted for heating stiffener material by use of the heating effect of a high frequency electric field
IPC: H05B6/50
Filed: 1950-08-30
Abstract: 695,808. Automatic voltage control. BRITISH UNITED SHOE MACHINERY CO., Ltd. Aug. 29, 1951 [Aug. 30, 1950], No. 21388/50. Addition to 595,140, [Group XI]. Class 38 (iv). [Also in Group XI] In an automatic voltage control of an oscillator in dielectric heating (see Group XI), the voltage between lines 204, 314 is held constant by automatically varying the negative grid bias of a full wave rectifier 200, 201. A 'portion of the output voltage is tapped off at 294 and applied to the grid 281 of a valve 280, which is thereby controlled and varies the drop in resistance 260 connected to a voltage regulator valve 299 and to an adjustable tapping 206 on a voltage divider between the terminals 250, 270 of an auxiliary power supply 251. If the voltage between the lines 204, 314 falls, the negative bias on the valve 280 also falls; and the subsequent increase in current through the resistor 260 decreases the negative grid bias of the rectifier 200, 201, thereby tending to increase the voltage between the lines 204, 314.
Patent GB-786982-A (GB)
Title: Improvements in or relating to mineral mining apparatus
IPC: E21C27/24
Filed: 1955-07-25
Abstract: 786,982. Mineral - mining machines. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI GES., GEB. July 25, 1955 [July 30, 1954], No. 21428/55. Class 68(1) A mineral-mining machine for working a seam over the entire thickness as it is moved through the seam parallel to the face thereof, has cutting means 12, 14, 16 so disposed at either end of the machine that the leading cutting means can operate ahead of the body 6 of the machine to clear a space for the body to be advanced into and, also, load disintegrated mineral on to the adjacent of a pair of conveyers 2 disposed at right angles to the direction of advance of the machine and between the two cutting means, whilst the trailing cutting means can be moved into a position in which it does not contact the seam. Each cutting means comprises a cutter drum 12, a cutter chain-carrying jib 14 and a cutter drum or drums 16. The drum 12 is rotatably at the end outermost with respect to the seam by an arm portion 10 of the body 6, the arm portion 10 extending between the upper and lower runs of the adjacent conveyer 2. The jib 14 is supported on the other end of the drum 12 so as to be rockable about the axis thereof and the cutter chain 29 of the jib 14 is in geared connection with the drum 12. The gear drive between the cutter drum or drums 16 rotatably supported by the jib and the cutting chain 29 is such that the direction of rotation of the drum or drums 16 is opposite to the direction of rotation of the chain 29 and drum 12. A drive 7 on the body 6 engages a fixed chain 24 to advance the machine.
Patent GB-804168-A (GB)
Title: Improvements in lifting and lowering machines
IPC: G01G19/08
Filed: 1956-07-11
Abstract: 804,168. Weighing apparatus. KATE, E. T. June 20, 1957 [July 11, 1956], No. 21436/56. Class 143 A weighing platform a is provided with shaped bars b which project through slots in a hoist platform e when it is in its fully lowered position, thereby enabling the load to be weighed prior to hoisting. In a modification the weighing platform may comprise a plate of any desired shape rounded by a skeleton frame which constitutes the lifting platform. In a further modification the lifting platform is a plate surrounded by a skeleton weighing platform.
Patent GB-516762-A (GB)
Title: Improvements in and relating to food storage receptacles for refrigerators
IPC: B65D81/18
Filed: 1938-07-07
Abstract: 516,762. Refrigerators. BRITISH THOMSONHOUSTON CO., Ltd. July 7, 1938, No. 21457/39. Convention date, July 9, 1937. Divided out of 515,878. Drawings to Specification. [Class 29] [Also in Group XVII] A receptacle of meat, vegetables &c. to be placed just below the evaporator of a refrigerator is adapted to collect drip during defrosting of the evaporator, the water being directed from the surface of the lid to a flanged rim of the receptacle or to holes in a marginal groove of the lid. The receptable is provided with a wire rack for supporting food &c. out of contact with the walls and bottom of the receptacle. The receptacles described are those described in Specification 515,878, the claims being directed to the features set forth above.
Patent GB-1374637-A (GB)
Title: Line coupling switch
IPC: H04M3/00
Filed: 1972-08-09
Abstract: 1374637 Automatic exchange systems GTE INTERNATIONAL Inc 9 Aug 1972 [20 March 1972] 21467/73 Divided out of 1374635 Heading H4K  The whole of the subject matter disclosed in this Specification is described in the parent Specification 1,374,635. The claims are directed towards a switch including a relay contact tree controlled by relays driven by codes at a plurality of inputs and arranged to connect a single inlet to an identified outlet and to set up self holding paths of actuated relays, and a logic circuit including contacts of the relays arranged to be set in accordance with a code corresponding to any outlet to which the switch is currently providing a connection, said logic circuit being conected to said inputs and arranged to produce a signal at an auxiliary terminal whenever a code identifying the output to which the switch is providing a connection appears at the inputs.
Patent GB-1428919-A (GB)
Title: Safety closure assembly
IPC: B65D50/04
Filed: 1974-05-15
Abstract: 1428919 Closure assembly ALUMINUM CO OF AMERICA 15 May 1974 21559/74 Heading B8T A safety closure assembly for containers comprises an inner screw-cap 10 having knurls 20, a bead 18 which engages a flange 30 of an outer cap 24 and which abuts against a surface 32 of the cap 24 such that in order to screw or unscrew the closure, downward pressure is applied to the top of the outer cap 24 causing the knurls 20 and teeth 34, provided on the outer cap 24, to engage and hence rotation of the outer cap 24 causes rotation of the inner cap 10. The surface 32 is preferably at an angle of 10 degrees from the cap's axis. The inner edges of teeth 34 are angled inwardly in the direction away from the inner cap to accommodate varying sizes of inner cap.
Patent GB-465193-A (GB)
Title: Improvements in or relating to direction indicating devices, particularly for automobiles
IPC: H01H61/06
Filed: 1935-07-30
Abstract: 465,193. Road - traffic signals on vehicles. BENASSI, R. July 30, 1935, No. 21605. Void. Convention date, July 30, 1934. [Class 118 (ii)] Direction - indicator lamps 9 or 10 and the tell-tale lamp 11 are flashed by thermostat 14 when the switch is moved into one or other of its operative positions. The tell-tale lamp and thermostat are included in the switch assembly.
Patent GB-986053-A (GB)
Title: Thermographic document copying processes
Inventor: HEPHER MARTIN
IPC: B41M5/398
Filed: 1960-06-20
Abstract: 986,053. Thermographic copying. KODAK Ltd. June 20, 1961 [June 20, 1960], No. 21629/60. Heading G2C. A document is copied by pressing it into contact with the rear side of an intermediate sheet which is not greatly absorbent of infra-red radiation and which is impregnated with, or at least the front side of which carries a thin layer of, a volatilizable oil, grease or wax; pressing against the side of the intermediate sheet remote from the document a receiving sheet; subjecting the sandwich so formed to infra-red radiation whereby the characters or lines of the document become heated and cause a very small amount of the volatilizable substance to be transferred to the receiving sheet; separating the receiving sheet from the sandwich; and applying to the sheet a dry powder which adheres to the transferred substance. The intermediate sheet may be a thin sheet of paper, e.g. tracing paper, or a monofilament nylon screen coated with an organic solvent solution of a chlorinated polyphenyl, oleic acid, or di-tert. amylphenol from which the solvent has evaporated and the dry powder may be black or dark coloured or may be a light-coloured or white powder, e.g. tannic acid, which is thereafter treated with a reactant, e.g. an iron salt, to produce a dark or coloured image. The image may be fixed by heating if the powder contains a heat-fusible resin or by spraying with a cellulose nitrate or acrylic acid polymer lacquer. The heat image may be formed by direct or by reflex infra-red exposure, both positive and negative records may be produced from a single exposure by dusting both the intermediate and receiving sheet images, the intermediate sheet may be used for several exposures until its supply of volatilizable material is exhausted, and the receiving sheet may be translucent e.g. tracing paper to allow viewing the powder image through the back of the sheet.
Patent GB-1394775-A (GB)
Title: Triazine compounds
IPC: C07D251/52
Filed: 1973-05-07
Abstract: 1394775 2,4 - Disubstituted - 6 - (α,α- dimethyl - # - acetyl - ethylamino) - 1,3,5- triazines ESZAKMGYARORSZAGI VEGYIMUVEK 7 May 1973 [8 May 1972] 21684/73 Heading C2C  Novel compounds of Formula I wherein X represents Cl- or CH 3 S-, R represents hydrogen or a C 1-4  alkyl group and R' represents a C 1-4  alkyl or alkenyl group, are prepared by reacting cyanuric chloride with diacetonamine in a molar ratio of substantially 1 : 1 in an aqueous or organic solvent medium and in the presence of an acid-binding agent, reacting the thus obtained 2,4-dichloro-6-(α,α- dimethyl - # - acetyl - ethylamino) - 1,3,5- triazine with an amine of formula HNRR' in the presence of an acid-binding agent and optionally [X=CH 3 S-], reacting the 2-chlorocompound of Formula I thus produced with thiourea followed by a methylating agent or directly with methylthiol. The examples describe the preparation of compounds of Formula I wherein (i) X is Cl, R is H, C 2 H 5  or C 3 H 7  and R' is CH 3 , C 2 H 5 , C 3 H 7  or allyl and (ii) X is CH 3 S-, R is H and R' is i-C 3 H 7 . The compounds of Formula I are used as herbicides.
Patent GB-979818-A (GB)
Title: Device for the application of liquid,and photographic processing machines comprisingthe same
IPC: G03D5/06
Filed: 1962-06-05
Abstract: 979, 818. Web coating apparatus. AGFA A.G. June 5, 1962 [June 7, 1961], No. 21725/62. Heading D1L. [Also in Division G2] A device for continuously supplying a liquid of relatively low viscosity to the upper side only of a moving web comprises a container for the liquid having a base provided with capillary means for establishing, transversely to the moving web, a dependent body of liquid maintained by surface tension, so that liquid passes continuously through the capillary on to the surface of the web which remains out of contact with the applicator. As shown, a supply of the liquid is provided in a container 4, which has at the bottom a slot 9 in which fits a sponge 10. The lower portion of the sponge is clamped between jaws 11, 12, the latter being movable on a sliding strip 13 to vary the pressure, and hence the permeability, of the sponge. Below the jaws, the sponge forms a pad 16 from which is suspended a line of liquid 18. The web 3, e.g. photographic film, is conveyed on a belt 2 so that its upper surface just comes into wetting contact with the liquid 18 without touching the under-surface of the pad 16. A valve 8 controls the pressure or supply speed of the liquid. Instead of the applicator being a sponge, it may be of rigid porous material, e.g. ceramic, or sintered metal, preferably roughened.
Patent GB-570514-A (GB)
Title: Improvements in and relating to the tipping of saw teeth with hard metals
IPC: B23D63/00
Filed: 1943-12-28
Abstract: 570,514. Making saws. SPEAR & JACKSON, Ltd., and PARSONS, G. W. Dec. 28, 1943, No. 21731. [Class 83 (ii)] [Also in Group XXIII] Saw teeth are tipped with hard metal by setting the teeth to the required angle, brazing or otherwise applying a small mass of hard metal c to one side of each tooth b so as to be located in the plane of the body a, Fig. 3, then removing all metal outside the plane of the body and re-setting the teeth, Fig. 5, each to the side opposite to the original setting. The hard metal is thus not bent and may comprise sintered hard metal alloy. The metal may be removed by grinding. The teeth b may be integral with the body a or may be inserted as single teeth or in segments.