baber/WOPTO huggingface dataset:
Patent GB-1346100-A (GB)
Title: Duct
IPC: F16L9/18
Filed: 1971-07-19
Abstract: 1346100 Ducts PROMAT GES FUR MODERNE WERKSTOFFE mbH & CO KG 19 July 1971 [22 July 1970 15 Dec 1970] 33830/71 Heading F2P A duct 10 is formed of walls 13, 14 each comprising inner and outer non-combustible insulating panels 16, 15 spaced from one another, e.g. by strips 17. The panels and strips are preferably of asbestos-silicate and the panels may have one smooth and one rough surface and may be lined with aluminium foil 19. The abutting edges 20 may be sealed with a capping of highly refractory cement, e.g. a water glass cement with an asbestos-silicate filler and the corners may be covered with a strip 21 of aluminium foil. Apertures 18 may be provided for flow of air to or from the duct. The duct shown has two passages 11, 12 but a single passage duct is illustrated in Fig. 3 (not shown).
Patent GB-633419-A (GB)
Title: Improvements in or relating to circuits for equalizing the frequencies of two electrical oscillations
IPC: H03L7/08
Filed: 1946-11-14
Abstract: 633,419. Automatic frequency control. PHILIPS LAMPS, Ltd. Nov. 14, 1946, No. 33860. Convention date, Dec. 3, 1943. [Class 38 (iv)] [Also in Group XXXVI] In a system for comparing and equalizing the frequency of two oscillations, the first oscillation is applied simultaneously to two mixer circuits which are also separately fed with a supply at the second frequency. The two second frequency supplies are mutually in quadrature and the mixer outputs are applied to two pentodes which conduct selectively, depending upon which frequency is the smaller, and energize relays to correct the deviating frequency. As shown, the oscillation of frequency f is applied, through the transformer 5, to the mixers 6, 7, the outputs of which bias, respectively, the suppressors and control grids of the pentodes 11, 12, the former in phase and the latter in antiphase. The oscillation of frequency f2 is applied to the phase-splitting network 8, the output of which is also applied to the mixer 6, 7. The difference frequency output of 6 tends to cause the pentodes to conduct and to cut-off, alternately, while the difference frequency output of 7, which is in quadrature with the output of 6, causes one or other of the pentodes to conduct, during the positive half-cycles on the control grids, in accordance with which of the frequencies f1, f2 is the higher. The anode circuit of each valve incorporates a relay which when energized, varies the drifting frequency correctively, e.g. through a motor or alternatively, the valves may be adapted to function as thermionic reactances to control the frequencies directly. In a further embodiment, not shown, phase synchronization of the two oscillations may be effected by a thermionic circuit. connected across either source, in which one or other of two diodes conduct to alter the capacitance connected across the source. This further control commences only after the initial coarse mechanical adjustment has operated to equalize frequency of two oscillations.
Patent GB-630499-A (GB)
Title: Improvements in loose leaf binding means
IPC: B42F13/08
Filed: 1946-11-15
Abstract: 630,499. Filing paper and like sheets. CHARLEY, W. T. Nov. 15, 1946, No. 33946. Convention date, Dec. 7, 1945. [Class 146 (i)] Loose-leaf binding means comprises the combination of a flexible binder strip and a locking plate 8 having a slot 9 for the strip and a pair of spring tongues 11 angularly offset from the plane of the plate and which engage opposite edges of the strip; the slot and tongues being arranged so that the plate is incapable of lateral movement relative to the strip. The width of the slot 9 is such that lateral movement is prevented, or notches 12 may be provided in the tongues 11 which engage the edges of the binder strip. In modifications, the spring tongues may be formed as extensions of the plate bent over to the required angle or the plate is formed with side edge gaps and a strip encompasses the plate by way of the gaps, the ends of the strip providing the spring tongues and the strip being  formed with a slot to correspond to the slot 9 for the binder strip. The plate in the latter case may be of mild steel and the strip only of spring steel The edges of the binder strip may be notched. A single locking plate may have several pairs of tongues associated therewith.
Patent GB-466892-A (GB)
Title: Improvements in doors
IPC: E06B3/70
Filed: 1935-12-07
Abstract: 466,892. Flush doors. CLARK, H. P. Dec. 7, 1935, No. 33978. [Class 145 (ii)] A door of the flush type built up from an odd number of superposed layers, each formed from a series of strips of wood, the outer layer being covered with plywood or other veneering and the strips of adjacent layers being arranged at right angles to one another, is characterized in that the layers are held together by edge pieces arranged transversely of the strips of the outer layers. Layers of strips 3 are arranged on each side of a central layer of wood strips 1 extending throughout the vertical height of the door and spaced apart to provide air passages 2. The strips 3 are rabbeted to engage ribs 5 on edge runners 6, a groove 7 receiving the outermost strips 1 of the central layer. The strips 3 are glued together and to the edge runners 6 and sections of plywood 8 are glued over the whole, being disposed within the edge runners 6. The strips may be of kiln-dried Western red cedar. Specification 430,293, [Group X], is referred to.
Patent GB-629870-A (GB)
Title: Improvements in chesterfield beds
IPC: A47C17/165
Filed: 1947-12-23
Abstract: 629,870. Bedsettees ; cabinet beds. HIRST, E. G. Dec. 23, 1947, No. 34098. Convention date, Dec. 23, 1946. [Class 52 (ii)] A bed frame is adapted to be folded into a cabinet which is in the form of a chesterfield and may be so used when the bed is folded away. The cabinet has an open front and has rigid panels 4 which may be shaped and used as arm rests. A bed frame comprising side panels 10 and connectors 11, 12 is pivotally supported at 14 on arms 9 pivoted on lugs 8 in the base of the cabinet. The rear end of the frame is provided with rollers 16 engaging in fixed guide ways 6 in the cabinet the guide ways being so formed as to bring the bed frame into a horizontal position when the bed frame is swung outwards of the cabinet. The bed frame in use is therefore supported by the top ends of the guideways 6, the arms 9 and by blocks 17 carried by the panels 4. The ends of the arms 9 are linked to hinged panels 18 so that when the bedframe is swung into the cabinet these panels are folded down on to the bedding to secure it. When in use as a bed the panels 18 form head and foot boards. Beneath the bed frame is a back 22 to which is hinged a seat board 24 with a hinged flap 25 linked to the back by links 26.
Patent GB-1479183-A (GB)
Title: Optical scanning device
IPC: G03B15/00
Filed: 1974-08-02
Abstract: 1479183 Optical scanning N V PHILIPS GLOEILAMPENFABRIEKEN 2 Aug 1974 [7 Aug 1973] 34175/74 Heading G2J The invention relates to a scanning system of the type in which light beams from different zones of a field of view are successively focused, via an objective 4 1  and a lens 2 of a rotatable lens drum 1, on to a detector 3 situated at a point on the axis of rotation O of the lens drum or at an optically equivalent point. To enlarge the entrance pupil, a field optical system, defined, is provided between the objective 4 1  and the lens drum 1 to conjugate the centre O' of objective 4 1  with the position of the detector 3. The field optical system may be a lens 5 1  as in Fig. 1. In a modification Fig. 2 (not shown) lens 5 1  is replaced by a concave mirror 5 2  which may have a lens (7), Fig. 3 (not shown) cemented to its surface. In another embodiment Fig. 4 (not shown) for scanning in two directions, light is received by a parabolic mirror 42 and is reflected to field mirror 5 2  by plane mirror 11. The beam from mirror 52 reaches lenses 2 via a second plane mirror 2. Cylinder 1 is rotated by motor 14 while a linear motor 15 oscillates the parabolic mirror 4 2 .
Patent GB-343804-A (GB)
Abstract: 343,804. Adding-apparatus. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Elliott-Fisher Co.; 342, Madison Avenue, New York, U.S.A.) April 7, 1930, No. 10954. [Class 106 (i).] With several totalizers; selecting denomination.- In a typewriting-adding machine having a number of totalizers and denomination-selecting means for rendering the actuators of each totalizer active in succession, the selecting-means is common to all the sets of actuators and includes a series of rockshafts extending transversely of the machine. As applied to the Underwood machine wherein the typewriter numeral keys 11 effect the depression of stop-pins 33 mounted in actuating racks 34, the latter are extended rearwardly and carry pins 42 to be engaged by arms 43 on rock-shafts 44, further arms on which are linked by rods 46 to the selecting- jacks 48 adapted to be rocked by a pivoted stop 51 mounted on each of a number of blocks 66 removably mounted on the carriage bar 71. For each totalizer there is a vertical spring-controlled bar 53 arranged one behind another and furnished at the upper end with a one-way dog 74 for engagement by cam-bars 65 removably mounted in the blocks 66. Each bar 53 is connected with a yoke supporting the actuating-racks of one totalizer, the arrangement being such that when the carriage enters a computing zone one or more of the bars 53 are depressed and therefore the corresponding set or sets of actuating-racks lowered so that their pins 42 come within the reach of the arms 43. As the carriage tabulates therefore these racks are advanced into setting position with respect to the bars 32, highest denomination first, and according to the number of cam-bars 65 used so the amount is set up on the racks of one or more of the totalizers.
Patent GB-1172365-A (GB)
Title: Improvements in or relating to a Gear Generating Machine
Inventor: SOROKOVSKY VLADISLAV KAZIMIROV
IPC: B23F9/10
Filed: 1966-11-01
Abstract: 1,172,365. Gear-cutting. SPETSIALNOE KONSTRUKTORSKOE BJURO. 1 Nov., 1966, No. 34421/66. Headings B3K and B3L. A milling, planing or grinding machine for generating or form-cutting gears comprises a cam 75 contacted by the end of a lever 76 for controlling movements of the tool or work, the pivot point of the lever being mounted on a fixed member for adjustment along the length of the lever. The cutter 13 on a spindle 12 is carried on a cradle 3. The work 9 is adjustably carried by an axially-movable slide 5, an angularly adjustable slide (7) and a laterally-adjustable head 11. The cutter is rotated by a motor 18 through a clutch 19. A motor 32 drives a swash-plate pump 35 to drive a variable-speed motor 40 to provide the cradle and work-head movements. The workhead drive is connected to the cradle drive by a pinion 43 which is removed if the work is to be indexed by a device 31 for form-cutting. The indexing device 31 includes a differential 57. The lever 76 is slotted and is mounted on a pin 77, adjustable laterally against a scale (91). The lever controls the swash-plate pump 35 through a cylinder 96 carrying stops 106, 104, formed with rack teeth engaging a pinion 38 to rotate the swash-plate. The stop 106 is adjustable against a scale 108 to determine the initial speed of generation and the angle through which the swash-plate is turned is determined by the cam 75 and the adjustment of the pin77. Fluid pressure is supplied to a line 115 to hold the lever against the cam 75 or to a line 117 to move the lever away from the cam to produce a fast return movement at a speed determined by a stop nut 120 engaging the cylinder 96. A screw 123 locks the lever 76 during adjustments. Mounted on a shaft 136 for angular adjustment with the cam 75 is a cam 128 which can be used for rough-cutting. The shaft is rotated from a gear 42 through change gears 141, 142 which determine which portions of the cam profiles are to be operative. Stops on a disc 147 control the cutting and indexing movements. In-and-out movements of the head 11 are determined by cams 155, 156 through a lever 157 and a piston 72 associated with an hydraulic follow-up device 74. Fast withdrawal of the head is effected by a piston 160. A tachometer 161, Fig. 7, can be engaged with a drive gear 168 by a knob 171 to obtain indication of the speed of movement at any time.
Patent GB-1518792-A (GB)
Title: Cryostats
IPC: F25D3/10
Filed: 1975-11-04
Abstract: 1518792 Forcing liquids by heating SOUTH LONDON ELECTRICAL EQUIPMENT CO Ltd 4 Nov 1975 [5 Aug 1974] 34422/74 Heading F1R [Also in Divisions F4 and G2]  A cryostat 3 for housing a microtome 1 comprises a thermally insulated refrigeration chamber 2, and means for passing a controllable quantity of low temperature liquified non-oxidizing gas, preferably liquid nitrogen, into the chamber 2 via a conduit 9. As shown, the means comprises a reservoir 8 with a monitoring system 6 controlling a resistance heater 7. The heater 7 causes some of the liquid gas to vapourize which forces liquid nitrogen out of the flask and causes it to drip into the chamber 2. The cryostat also includes a mechanical refrigeration system 5 having an evaporator 4 within the chamber 2. The microtome includes a knife 10, a vacuum probe 11, a manipulator 12, a microscope 16 and a spot light (not shown). A separate refrigeration cell 14 is provided for storage or freeze drying.
Patent GB-204605-A (GB)
Title: Means to facilitate storage of engine cylinder-cooling water in a heat-retaining vessel
IPC: F02N19/10
Filed: 1922-12-18
Abstract: 204,605. Harley, H. G. Dec. 18, 1922. Cylinders, cooling.-A heat-insulated tank v receives and keeps hot the cooling water of one or more engines. The tank is provided with wheels w and a handle s for moving it about a garage or it may be fixed upon a wall. It may be connected by a pipe to the radiator r or have a funnel a to receive the water. The water is returned by pumping air into the vessel by a pump p, a non-return valve e at the water inlet preventing the escape of air. Several methods of connecting the pipes b to the tank and the radiator are described.
Patent GB-604903-A (GB)
Title: Synthetic resin compositions for low pressure paper base laminates and wood surfacing
IPC: C08L67/06
Filed: 1945-12-21
Abstract: A homogeneous polymerizable composition comprises 1 to 3 parts by weight of a polymerizable melamine-formaldehyde condensation product alkylated with an alcohol having 1-4 carbon atoms and 20 to 2 parts by weight of a mixture of an unsaturated alkyd resin and a compatible substance having a CH2=C< group and a boiling point of at least 100 DEG  C.  The melamine-formaldehyde condensation products may be prepared as described in Specifications 486,519, 486,577 and 566,347. An example is given of the production of a methylated melamine-formaldehyde condensation product.  The unsaturated alkyds are polyesters of an a b -unsaturated dicarboxylic acid with a polyhydric alcohol. Acids mentioned are maleic, fumaric, itaconic and citraconic. Saturated acids, e.g. succinic, sebacic, adipic, phthalic or endomethylenetetrahydrophthalic may replace part of the unsaturated acid.  Polyhydric alcohols mentioned are ethylene, diethylene, triethylene, trimethylene, a -propylene, decamethylene, or neopentyl glycol or octadecanediol.  The alkyds may be modified with monohydric alcohols and/or monocarboxylic acids.  Preferably, the alkyd has a low acid number, e.g. below 60.  Suitable vinyl compounds are styrene, o-, m- or p-methyl styrene, a -methyl styrene, any of the dimethyl styrenes, the isopropenyl toluenes, vinyl naphthalene, diallyl phthalate, diallyl terephthalate, diallyl sebacate, diallyl maleate, diallyl succinate, diallyl fumarate, triallyl phosphate, triallyl carballylate, or the diallyl ester of ethylene glycol carbonate.  Addition of a small quantity of a phosphoric acid ester helps to stabilize the compositions. Polymerization of the catalysts is helped by a catalyst, e.g. benzoyl peroxide, benzoyl acetic peroxide, lauric peroxide, coconut oil peroxides, oleic peroxide, stearic peroxide or tertiary butyl hydroperoxide. Pigments, e.g. titanium dioxide, dyes or fillers, e.g. glass fibres, a -cellulose pulp, asbestos fibres or mica may be included in the compositions.  The products may be used for coating, laminating, or mixed with fillers for casting or moulding, or for treating paper or textiles.  In the examples: (1) an unsaturated alkyd from diethylene glycol, fumaric acid and sebacic acid and a methylated melamine formaldehyde condensation product are separately blended with styrene.  The two blends are mixed and lauroyl peroxide and methyl acid pyrophosphate are added.  Paper is impregnated with the product and the desired number of sheets are laminated at 50 lbs./sq. inch pressure and 110 DEG  C. for 10 minutes; (2) and (3), in these examples the unsaturated alkyd is prepared from ethylene glycol, phthalic anhydride and fumaric acid and the compositions are used to form a coating on plywood. Specification 604,861 also is referred to.
Patent GB-1474758-A (GB)
Title: Fuel oil supply system
IPC: F02M37/08
Filed: 1974-08-09
Abstract: 1474758 Reciprocating pumps DANFOSS AS 9 Aug 1974 [21 Aug 1973] 35222/74 Heading F1A [Also in Divisions F2 and F4] A fuel oil supply system for a burner 37 comprises an electromagnetically-actuated pump 1 with a piston 8 connected to an armature 6 and biased  into a median position by springs 9, 10, a winding 2 being supplied from an A.C. source 5 via halfwave rectifier 4. The pump delivers via line 15 to a throttle valve 19 controlled by a diaphragm 22 subjected to the delivery pressure and biased to open valve 19 by a spring 25 adjustable by knob 26 to set the delivery pressure, the action of springs 9 and 10 automatically adjusting the piston stroke. A diaphragm accumulator 39 absorbs half the pump output during the delivery stroke and releases it during the following suction stroke. The chamber 44 beneath the accumulator diaphragm and the pump chamber 17 draw fuel from the suction line during the pump suction and discharge strokes respectively, and return the fuel to the suction line during the following stroke, to prevent pulsing in the suction line. A valve 29 prevents delivery of fuel to burner 37 until the pump output pressure is sufficient to depress accumulator diaphragm 39 sufficiently to operate snap-action link 32 and lever 31 to open valve 29, the valve returning to its closed position when the pump output pressure falls below a predetermined level.
Patent GB-155282-A (GB)
Title: Improvements relating to the production of yeast
IPC: C12N1/18
Filed: 1920-12-15
Abstract: 155,282. Verein der Spiritus-Fabrikanten in Deutschland. Feb. 24, 1915, [Convention date]. Yeast.-A culture medium for yeast consists of a solution of raw or refined sugar to which are added mineral salts to a total of not less than 15 per cent of the amount of sugar present.. A suitable composition is described containing ammonium sulphate, ammonium dihydrogen phosphate, potassium sulphate, gypsum, and magnesium sulphate. Tha concentration must not be greater than 2 per cent on the saccharometer. The yeast must be aerated and 'the initial temperature be low. An initial temperature of 22‹ C. rising in 20 hours to 30‹ C. is suitable.
Patent GB-1318961-A (GB)
Title: Apparatus and process for collecting a solid product from a liquid  phase or liquid phase-gaseous phase feed stock
IPC: C07C233/04
Filed: 1970-07-21
Abstract: 1318961 Washing solid product; crystallization by evaporation SAGAMI CHEMICAL RESARCH CENTER 21 July 1970 [21 July 1969] 35320/70 Headings B1B and B1F A process for the production of solid oxamido, comprises passing cyanogen through conduit 3, Fig. 1, into a solution of mineral acid in a reaction zone where solid oxamide is formed, and letting the oxamide pass down washing zone 2 where it is washed in countercurrent with water from 6, the desired circulation being achieved by a stirrer 8 which rotated slowly so as to prevent turbulence and to prevent liquid from zone 1 descending into the washing zone. In the apparatus of Fig. 3, brine concentrate is concentrated by heating in zone 1, and the common salt crystals so formed pass down washing zone 2 where they are washed in countercurrent by brine from 5, the desired circulation being achieved by a stirrer 8 which is rotated slowly so as to prevent turbulence and to prevent liquid from zone 1 descending into zone 2.
Patent GB-1207762-A (GB)
Title: Method of and apparatus for securing an element to at least onemetallic sheet
Inventor: KOETT ALBERT CHRISTIAN
IPC: B21D39/03
Filed: 1968-07-24
Abstract: 1,207,762. Jointing; punching. A. C. KOETT. 24 July, 1968, No. 35386/68. Headings B3H, B3U and B3W. [Also in Division F2] An element e.g. a nut having a recessed portion 54, Fig. 17, is secured to at least one metallic sheet S by subjecting the element N to high-frequency vibrating impulses with a force sufficient to drive the element N intermittently into and through the sheet S to punch a slug therefrom and deforming the sheet S immediately adjacent the element N into the recessed portion 54. In one embodiment, the lowermost nut N, Fig. 6, of a stack in a magazine 64 initially rests upon a tongue 138, attached to a carriage 66, and is confined by an aperture 150 of a slide 146. The carriage 66 is manually moved to the left by a handle 68, Fig. 1, to cause resilient claws 156, Fig. 12, on the tongue 138 to embrace the nut which engages a strut 170 of the slide 146 to advance the latter a short distance determined by stops (206a) (Figl 10, not shown). At the forward limit of travel of the slide 146, the next nut in the magazine 64 drops into an aperture 152 of the slide 146. Upon the further forward movement of the carriage 66 and attached tongue 138 carrying the nut, a rear edge 180 of a slot 182 in the tongue 138 is engaged by a cam 178 to cause the cam to ride upon the top surface of the tongue 138 forcing the latter downwardly about pivot pin 124 against the action of a spring 144. Thereafter the cam 178 drops into a further slot 192a causing the tongue 138 to pivot upwards by the spring 144 about pivot pin 124 to locate the nut within a recess 70, Fig. 17, of a die 72 where it is held by spring biased pins 74. The manual retraction of the carriage 66 and tongue 138 causes the cam 178 to pivot about a pin 184 against the action of a spring 186 and leave the slot 192a., after which it rides on the top surface of the tongue 138 and then drops into the slot 182 into the initial position. The slide 146 is retracted into the initial position by the tongue 138 engaging a lug 204 at the rear of the slide 146 to thereby cause the nut in the aperture 152 to be transferred into the aperture 150 by a fixed abutment 194. After a sheet S has been placed on a lower die 88, a handle 86 is lowered to lower the upper die 72 causing the nut therein and a locating pin 210 to engage the sheet S. When the handle 86 is in the depressed position, a valve 94 is opened to actuate a pneumatic hammer 90 which drives the nut through the sheet by a succession of highfrequency impacts. The sheet material is deformed between the dies 72 and 88 and forced into the recessed portions 54 of the nut. In another embodiment (Figs. 19-33), the nut is held within the die 72 by barbed resilient arms (348) engaging the nut threads.