baber/WOPTO huggingface dataset:
Patent GB-1102457-A (GB)
Title: Improvements in disc brakes
IPC: F16D55/00
Filed: 1966-09-29
Abstract: 1,102,457. Disc brakes. ANDRE CITROEN SOC. ANON. 29 Sept., 1966 [6 Oct., 1965], No. 43537/66. Heading F2E. Relates to a disc brake constructed similarly to that described in Specification 1,045,941, with reference to Figs. 7 and 8 of the drawings accompanying that Specification, the object of the invention being to eliminate vibration of the axially movable pad or pads by incorporating a leaf spring bearing on the pad(s). As shown, the brake is of the fixed caliper type in which both pads are axially movable, each pad 3 having a backing plate 9 providing arcuate bearing surfaces 11, 12 which are concentric about an axis X and which engage corresponding cylindrical surfaces 13, 14 on the fixed housing to allow limited pivotal movement of the pad about the the axis X, normally prevented by abutments 15b, 16a of which the latter is a pivoted plate normally locked in position by a screw 16c but movable out of the way, to permit pivotal movement and subsequent circumferential withdrawal of the pad, when the screw 16c is slackened by a few turns. The cylindrical surface 14 is formed in part by the housing and in part by a machined surface on the fixed abutment 15b which is in the form of a rod. A second rod 22 provides the cylindrical surface 13. A leaf spring 26 is adapted to engage, at points d, the backing plate 9 and also the backing plate of a pad 20 of an auxiliary brake which is actuated mechanically through levers 24, the pads 3 being applied by opposed hydraulic pistons 7 in bores 8 of the housing, which is a split housing. The leaf spring is bent in such a way that if the pads 3 and 25 are removed it is retained by its engagement at two points with the housing and at an intermediate point with the rod 22.
Patent GB-1441015-A (GB)
Title: Rotary cultivators
IPC: B62D51/06
Filed: 1973-09-18
Abstract: 1441015 Rotary cultivator WESTWOOD ENG Ltd 28 Aug 1974 [18 Sept 1973] 43660/73 Heading A1B A rotary cultivator with an adjustable working depth control member 4, provided with a ground-engaging foot 6 comprises a rotary tine assembly 1 and a wheel assembly 3 which pivots about a pin 14 and is biased with an over-centre action by a spring into either a transporting position or an operating position. Either one of two projections on the wheel assembly 3 engages a notch in the depth control member 4 when the wheel assembly is in its transport or working positions. When the assembly is not in either of these positions the depth control member 4 may be slid freely in a housing 8.
Patent GB-945935-A (GB)
Title: Improved fluid condensation pump
IPC: F04F9/00
Filed: 1962-11-20
Abstract: 945,935. Diffusion pumps; baffles. M. M. DUNKEL, [trading as E. LEYBOLD'S MACHFOLGER]. Nov. 20, 1962 [Dec. 1, 1961], No. 43805/62. Heading FIE. In a fluid condensation pump 1 the vapour stream inside pipe 2 is used to impart motion to at least one stirring element 9 immersed in the fluid inside the vapourizing chamber 31. Stirrer 9 is driven by a shaft 8 from a bladed wheel 5 rotatably mounted in ball bearings 7 in a web support 6. The wheel blades partly overlap so as to retain any liquid droplets entrained by the vapour. Stirrers may be arranged in different vapourizing chambers and separate drive means for corresponding stirring elements may be provided in different pump stages.
Patent GB-968503-A (GB)
Title: Torquemeter
Inventor: ANDREWS STUART ALEXANDER
IPC: G01L3/10
Filed: 1959-12-24
Abstract: 968,503. Measuring electrically. DE HAVILLAND ENGINE CO. Ltd. Dec. 22, 1960 [Dec. 24, 1959], No. 43866/59. Heading G1N. A torquemeter comprises a shaft carrying two axially spaced elements each with a magnetisable cylindrical surface concentric with the shaft, a fixed pick-up device adjacent each element, a signal channel from each pick-up device which derives from picked-up signals square waves of substantially constant amplitude but having frequency and phase the same as those of the picked-up signals, and a device for comparing the square waves from the two channels. In Fig. 1, two aluminium support drums 12, 13 are mounted coaxially and in spaced apart relation on a shaft 11; alternatively they may be integral with the shaft. Thecurved peripheral surface of each drum carries an annular magnetizable element 14 in the form of a strip, layer, or wire of ferro-magnetic metal, an impregnated plastic strip, a sintered magnetic oxide material, etc.; if in layer form, the element may be applied by spraying. Adjacent each element is located one of two combined magnetizing, erasing and pick-up devices 15, 16 which, when a 7-contact 2-position switch 17 is in the position other than that shown, are connected in series (or, alternatively, in parallel) across a generator 32 coupled to the shaft 11 which is rotated under noload conditions so that each element 14 is similarly magnetised. Preferably the intensity of magnetization around the elements varies sinusoidally, but other wave-forms may be used. Switch 17 is then restored to the position shown. When shaft 11 rotates on load, the torsional twist therein causes a relative phase displacement between the outputs of pick-ups 15, 16, each output being supplied via a gain-stable amplifier 22, an amplitude limiter 23 and a gain-stable ring-ofthree amplifying unit 24 to an A.C. meter 27 which operates according to the algebraic sum of the signals. Alternatively, an oscilloscope may replace meter 27; also the resultant signal may be fed to apparatus 39 to control the speed of rotation or the load on the shaft. The elements 14 may be in the form of discs 41 secured to the sides of drums 12, 13. To mount the drums more closely together, one drum is mounted at one end of a sleeve which extends coaxially around the shaft and is attached thereto at its other end. A multiple torquemeter sensitive to the torque in two different portions of a rotating member comprises two torquemeters as described above, one of the magnetized elements being common to both torquemeters. The Provisional Specification describes a modification in which the outputs of pickup devices 15, 16 are supplied to the primary windings of two transformers, the secondary windings of which are connected in opposition to the meter; also a revolution meter comprises a single support drum holding magnetizable material, the magnitude or frequency of the picked-up signal being measured.
Patent GB-1162826-A (GB)
Title: Apparatus for Receiving Pulses and Producing a Particular Output Signal If and Only If it Receives a Particular Number of Pulses With a Particular Time Spacing
IPC: H02J13/00
Filed: 1966-09-30
Abstract: 1,162,826. Selective signalling. SIEMENSSCHUCKERTWERKE A.G. 30 Sept., 1966 [5 Oct., 1965], No. 43933/66. Heading G4H. In order to recognize a particular combination of serially occurring bits transmitted over power lines, the bits are recorded 2, Fig. 1, on a magnetic drum 1, or on a tape loop, and reading heads 5, 6, 7 are so disposed relative to each other that when the combination of bits that is to be recognized is recorded 10, 11, 12, then eventually all the reading heads will simultaneously produce an output to open a gate 9.
Patent GB-1261688-A (GB)
Title: Improvements in or relating to the treatment of leather
IPC: C14C9/02
Filed: 1970-09-15
Abstract: 1,261,688. Treating leather. HENKEL & CIE G.m.b.H. 15 Sept., 1970 [16 Sept., 1969], No. 43933/70. Heading D1P. [Also in Division C6] A fat-liquoring agent for leathers comprises a chlorination product of an ester of a C 8-24  fatty acid having a chlorine content of 10 to 40% by weight and possessing substantially no free double bonds. The fat-liquoring agent preferably includes a chlorination product of a naturally occurring fat or oil and a chlorination product of a synthetically prepared ester of a fatty acid having 8 to 24 C atoms and a monohydric aliphatic alcohol having 1 to 6 C atoms, preferably 1 to 4 carbon atoms. The fat-liquoring agent, usually obtained by passing chlorine into the ester which may be diluted with an organic solvent, e.g. carbon tetrachloride, may be stabilised by the addition of 0.5 to 5% by weight of an epoxy compound, e.g. an epoxidised natural fat or oil. The products may be applied in the form of aqueous emulsions or as a solution in an organic solvent. Examples of the emulsifiers used are anionic higher fatty alcohol sulphates or alkyl- or alkyl aryl-sulphonates, or non- ionic products of addition of ethylene oxide to higher fatty alcohols or alkyl phenols containing 10 to 20 C atoms. The fat-liquoring agent may have a content of one or more of the usual leather treatment substances, e.g. natural oil, fats, chlorinated paraffins, paraffin sulphonates and mineral oils. Substantially all the double bonds present in the starting materials should be saturated by the chlorination process and preferably a chlorine content of 20 to 30% by weight be attained in the end product. Instead of aqueous emulsions the products may also be used in the form of their organic solutions, prepared by dissolving the substances in petroleum hydrocarbons having a BPt. range of from 80 to 120C or in chlorinated hydrocarbons with 1 to 3 C atoms.
Patent GB-1074970-A (GB)
Title: Column for contacting liquids and gases
IPC: B01D3/16
Filed: 1964-10-28
Abstract: 1,074,970. Gas/liquid contacting apparatus. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Oct. 28, 1964 [Oct. 30, 1963], No. 44033/64. Heading B1R. In a gas/liquid contacting column having at least two superposed trays having one or more tubular contacting apparatuses 2 through which liquid and gas are passed upwardly and are given a rotary motion by vanes 3, pipes 7 draw liquid from one tray and deliver it to the lower end of a tubular contacting apparatus of a tray below. The pipes 7 as shown deliver liquid into a well 9 but in modifications the liquid may be delivered from a number of pipes each opening adjacent the wall of a tubular contacting apparatus or through a single pipe dropped centrally of a tubular contacting apparatus. The upper ends of the tubular contacting apparatuses are surrounded by collars 5.
Patent GB-1510989-A (GB)
Title: Electric arc furnaces and their operation
IPC: H05B7/152
Filed: 1975-10-06
Abstract: 1510989 Automatic control REPUBLIC STEEL CORP 6 Oct 1975 44342/77 Divided out of 1510988 Heading G3N The disclosure is identical with that of Parent Specification but the claims are directed to a method of manually controlling the arc electrode system to remain in contact with the charge should a predetermined degree of conduction exist between the charge and the electrode so that the charge is melted or burned by the current flow and normal automatic position control of the electrode in dependence on arc voltage and current conditions can be resumed without the necessity of withdrawing the electrode.
Patent GB-983022-A (GB)
Title: Improvements in pads for garment presses
Inventor: HITCHINGS CHARLES NICHOLAS
IPC: D06F83/00
Filed: 1962-11-23
Abstract: 983, 022. Press pads. JOSEPH STEPHENSON & CO. (LONDON) Ltd. Nov. 13, 1963 [Nov. 23, 1962], No. 44387/62. Heading D1A. A press pad comprises a plurality of layers 1 of knitted wire fabric welded together continuously around their outline and covered in various other layers 2-5 of wire or other fabric. The layers 1 after being welded are trimmed around the weld and are then provided with an edging 9.
Patent GB-1400458-A (GB)
Title: Non-stick coating compositions
IPC: C09D127/12
Filed: 1972-09-26
Abstract: 1400458 Fluorocarbon polymer coating compositions S A TEFAL 26 Sept 1972 [11 April 1972] 44425/72 Heading C3P A coating composition comprises an aqueous dispersion of unsintered fluorocarbon resin particles and sintered glaze particles with a melting point above 400 C., the proportion of resin being at least 100% of that of the glaze. The sintered glaze particles may be added to an aqueous dispersion of the fluorocarbon resin as an aqueous dispersion which may also contain grinding and hardening additives. In examples the polymer used is polytetrafluoromethylene and the compositions include sodium and potassium silicate, caustic potash and boric acid. The sintered glaze particles may contain mixtures of some of the following SiO 2 , B 2 O 3 , LiO 2 , Na 2 O, K 2 O, TiO 2 , Al 2 O 3 , Sb 2 O 3 , NaF, AlF 3 , CaF 2 , ZnO, LiF, ZrO 2 , SnO 2 , CaO and P 2 O 5 .
Patent GB-977673-A (GB)
Title: Improvements in or relating to flue controls for gas fires
Inventor: ADAM ARTHUR JOHN
IPC: F24C15/00
Filed: 1962-11-23
Abstract: 977,673. Flue control relating to gas fires. R. & A. MAIN Ltd. Nov. 6, 1963 [Nov. 23, 1962], No. 44473/62. Heading F4W. A gas fire of the type wherein secondary combustion air is drawn to the burners through the fire casing bottom and diluent room air is drawn through further fire casing openings to a space within the casing, both streams flowing to an outlet at the back of the casing, is provided with chamber disposed between the casing and the flue, said chamber having upper and lower openings 18 and 19 communicating with said outlet and space respectively and a valvecontrolled flue outlet 24. The chamber comprises vertical progressively stepped rear walls 15, 16, 17 and side walls 13 attached to the fire casing by flanged edges 14. An upper flue outlet 24 and an additional lower outlet 20 are provided in the upper rear walls, the former being controlled by a flap valve 23 pivoted at 22 between the side walls and biased inwardly open by an attached weight 29. The lower edge of the outlet 24, formed by an arcuate lip 25 struck about the pivot axis, extends horizontal and parallel with the valve edge 28 until as indicated in Fig. 1 (not shown), it terminates in a cut-away inclined section 27. The outlet may be otherwise shaped but still such that the rate of decrease of outlet area decreases with valve closure. The opening 20 may be dispensed with, its equivalent flow area being provided by a clearance between the valve 23 and opening 24. If a heat exchanger is incorporated, the lower opening 19 communicates with room air through an additional opening in the fire casing.
Patent GB-1448440-A (GB)
Title: Dental device for filling tooth cavities
IPC: A61C5/06
Filed: 1972-09-27
Abstract: 1448440 Mixing apparatus N V NIELSON 24 Sept 1973 [27 Sept 1972] 44594/72 Heading B1C [Also in Division AS] A holder 6 for an amalgam cartridge 8 Fig. 6, in which ingredients for a dental filling are mixed, is pivotally secured to a holding block 12 and the cartridge is provided with a hood (9, Fig. 7, not shown), which when pressed down causes an interior partition between a quantity of mercury and a quantity of filling in the cartridge to be broken. The apparatus includes a vibrator 38 which can be directly coupled with the amalgam cartridge 8 when the holder 6 is swung out to the charging position, by means of a side pin 56 mounted on a control block 34 which interacts with a horizontal hoop portion 52. When the shaking and mixing have been completed the vibrator 38 is stopped and the holder 6 swung into the Fig. 6 position so that the pin 56 is within the hoop portion 54. The vibrator is started again and the pin 56 moves freely up and down whereby the holder block 12 is subjected only to to the small vibrations produced by the sliding engagement between the corrugated surfaces of the members 34 and 12. These tiny vibrations aid the delivery of amalgam from the cartridge 8 down a narrow outlet spout 4. The vibrator 38 operates a plunger 32 in the spout 4 with which the amalgam is dispensed and compressed in the dental cavity.
Patent GB-959539-A (GB)
Title: A process for the preparation of non-sticky, free-flowing moulding powders from unsaturated polyesters
IPC: C08L67/06
Filed: 1962-11-26
Abstract: Non-sticky free-flowing moulding materials which can be hardened at elevated temperature and pressure are formed by reacting a solid unsaturated polyester of suitable softening point with hexahydro-1, 3, 5-tris-acrylyl-s-triazine, if desired in the presence of an accelerator, which moulding materials may also contain inert fillers and fluxes.  Preferably the glycols used in the preparation of the unsaturated polyester are or include perhydro-2, 2-di-(4-hydroxyphenyl) propane or dihydroxyalkyl ethers of 2, 2-(dihydroxyphenyl) propane, or mixtures thereof with conventional aliphatic diols. Fillers, lubricants and fluxes mentioned are kaolin, chalk, asbestos, talcum, glass staple fibers, metal stearates, waxes and powdered polyethylene. Accelerators mentioned are dicumyl and benzoyl peroxides and p-tert.-butyl benzoate.  In the example a finely ground polyester obtained from fumaric acid and 2,2-di-4-hydroxypropoxyphenyl propane, and stabilized with hydroquinone, is mixed with hexahydro-1, 3, 5-tris acrylyl-s-triazine, zinc stearate, talcum, chalk, benzoyl and dicumyl peroxides, on a mixing roller at 70 DEG  to 100 DEG C.; glass fibers are then added and the rolled sheet further processed. The moulding material can be used in the preparation of laminates.
Patent GB-1212268-A (GB)
Title: An automatic machine for candling, cleaning, sanitizing and grading of eggs
IPC: B07C5/16
Filed: 1968-09-19
Abstract: 1,212,268. Processing eggs. DAWSON & CO. Inc. 19 Sept., 1968 [10 Oct., 1967], No. 44678/68. Heading A1M. [Also in Divisions B8 and G1] A machine for automatically candling, cleaning, sanitizing, drying and weightgrading eggs consists of (i) a loading conveyer 24 over which the eggs move in multiple rows while rotating about their own axes, (ii) a cornering and converging conveyer 28 which rotates the major axes of the eggs by 90 degrees and then converges the eggs into two rows on parallel conveyers 30, 32 arranged at right angles to the conveyer 24, (iii) a cornering and elevating conveyer 36 to change the direction of forward motion of eggs by 90 degrees, to rotate major axes of eggs through 90 degrees and to elevate by elevator conveyers 130, 132 the two eggrows to two levels to present the eggs to the egg graders, the major axes of the eggs being perpendicular to their directions of motion on the conveyers 24, 30, 32, 130 and 132. A candling station 26 is located above the loading conveyer 24 and the sections 102, 103, 104, located above the parallel conveyers 30, 32 have brushes rotating in pairs in opposite sense, the brushes being provided with nylon and/or stainless steel bristles. In section 102 the eggs are scrubbed by pairs of brushes, cleaning liquid being supplied by an assembly 105. In section 103, the eggs are cleaned further and sanitised by nylonbristled brushes 92, chemicals being sprayed during the operation. In section 104 the eggs are dried by soft -wiping- brushes 92, a sponged belt 110 (Fig. 6, not shown), and a drying fan 107. The rotation of the major axes of eggs in the conveyer 28 is effected by retarding the motion of one side of each egg by rotating brushes 62 (Fig. 5, not shown) while the other side of the egg is moved by a spring conveyer. The eggs are then moved solely by their contact with the spring conveyer. The eggs from elevating conveyers 130, 132 are delivered to the egg grader at two levels, 166 and 164 (Fig. 9, not shown), and presented to a weight sensing station 170, the eggs being held in moving arms 160. An egg heavier than a pre-designated weight operates a mercury switch to operate an ejector 198 which pushes the egg to a ramp 217 from which it is carried by a brush 214 for soft-landing it over a chain conveyer 204 for delivery to trays. The grader may have a number of weightsensing stations operating at different egg-weights.
Patent GB-1271725-A (GB)
Title: Method and appliance for the continuous production of a fondant mixture
Inventor: NIEBISCH GUENTER
IPC: A23G7/02
Filed: 1969-09-13
Abstract: 1,271,725. Fondant. OTTO HANSEL, G.m.b.H. 13 Sept., 1969, No. 45253/69. Heading A2B. In a continuous production of fondant mixtures, the already beaten or moulded mixture is artificially aged or matured by subjecting it to vibration, with if desired concomitant adjustment of the temperature to room temperature. The figure shows a suitable apparatus, the syrup being passed through boiler 1 via pipe 2 to pre-evaporator 5 and evaporator 6, from whence the fondant is passed by conveyor 13 to beater 14. The thus beaten fondant is transported by screw 17 to vibrating table 19, which is formed as a conveyor belt, and the aged product is withdrawn at 23. Double-walled jackets 12 and 17a serve to enable the temperature of the fondant under treatment to be controlled, as does the passage of air via 22 and 22a. The vibrations may be provided either mechanically or ultrasonically.
Patent GB-1309109-A (GB)
Title: Frequency stable relaxation type oscillator
IPC: H03K3/30
Filed: 1970-09-23
Abstract: 1309109 Blocking oscillator MOTOROLA Inc 23 Sept 1970 [4 Nov 1969] 45283/70 Heading H3T A frequency stable blocking oscillator comprises a timing capacitor 16, a semi-conductor switch 10, one terminal of the capacitor being connected to a control terminal of the switch, and to a source of operating potential, e.g. via potential divider resistors 21, 23 for establishing a charging path, one terminal of the switch being coupled via a circuit arrangement, e.g. a coupling transformer 13 and diode 18, to the same terminal of the capacitor for supplying a control potential, when the switch 10 is conductive, proportional to the magnitude of the operating potential and being in opposition thereto for establishing a starting charge on the timing capacitor 16. In operation when transistor 10 is conducting, diode 18 is backbiased and the lower end of winding 26 is clamped to a potential slightly above ground. The upper end of winding 26 reaches a negative potential which is applied to the timing capacitor. Diode 18 further short-circuits the current generated by the flux collapse in winding 26 when transistor 10 is cut off. A variable resistor 20 is provided for varying the frequency of operation. The oscillator may be synchronized to an external pulse 28 applied via a capacitor 29.