baber/WOPTO huggingface dataset:
Patent GB-846781-A (GB)
Title: Strip feeding mechanism for typewriters and like machines
IPC: B41J11/36
Filed: 1957-12-09
Abstract: 846,781. Typewriters. STANDARD REGISTER CO. Dec. 9, 1957, No. 38270/57. Class 100(4) Rotation of the platen in a typewriter or like machine is controlled by a line-finder mechanism 24 which incorporates a rotary switch connected to the rotary platen and electrically connected tc external circuits for connect ing to one or more other remote machines for controlling functions e.g. punching tape, carriage return, platen rotation or tablation. The mechanism 24 is detachably fitted on the back framework of the typewriter 20 and comprises a motor driven escapement ratchet 47, Fig. 8 tc which is coupled the rotary switch consisting of a rotary contact arm 126 engaging with a ring 124 and a circular series of electrical contacts 122 connected to devices 14C associated with the remote machines. The ratchet 47 is connected by gearing to a driving sleeve in a housing 36a, Fig. 1, where the drive sleeve incorporates an arrangement whereby a device is imparted to turn a splined shaft 28. This shaft is freely slidable through the drive sleeve to allow for the transverse movement of the typewriter carriage to which the shaft 28 is attached by means of side plates 29, 31. The shaft 28 is coupled to the platen shaft 27 (Fig. 4 not shown) by gearing in a motion transmitting unit 32 incorporating a manual decoupling mechanism operated by a lever 116. When a carriage-return key 43, Fig. 8 is depressed an electromagnet 45 pushes a pawl 46 away from the ratchet 47 and causes, contacts 55 to close, and energising an electric motor 53, which through a friction device, rotates the ratchet 47. The mechanism operating the pawl 46, (Fig. 2 not shown), ensures that it immediately returns to the ratchet after causing platen to advance one line-space. To effect a long feed to the heading of the next form, a key 57 is depressed to operate a magnet 61, and lever 62. By engagement of this lever with a pin 64 on the pawl 46 which is held away from the ratchet 47 by a latch 66, the platen is rotated until a stop 68 on the ratchet 47 releases the latch 66 and the pawl 46 re-engages the ratchet 47. The contact arm 126 during this rotation is pushed clear of the contacts 122. In a modification, Fig. 12, operation of a carriage-return key 156 causes automatic line-spacing by actuation of a magnet 159 which releases a ratchet pawl in a manner similar to magnet 45 above. Rotation of the ratchet is however effected by a second electromagnet 165. When a long feed is required this electromagnet is repeatedly operated until a cam portion 194 disconnects the operating circuits and the platen is arrested in the required position e.g. the first line of a succeeding sheet. In a further modification the ratchet is driven by an electric motor which can be held in a stalled condition.
Patent GB-1064284-A (GB)
Title: Improvements in or relating to progesterone derivatives
IPC: C07J5/00
Filed: 1963-09-30
Abstract: The invention comprises compounds of formulae <FORM:1064284/C2/1> wherein X represents a hydrogen, fluorine or chlorine atom or a methyl group, R represents a hydrogen atom or a hydroxyl or optionally substituted acyloxy group having less than 12 carbon atoms, T represents a hydrogen atom or an a -hydroxy, optionally substituted a -acyloxy having less than 12 carbon atoms, or methyl group, or R and T together represents the group <FORM:1064284/C2/2> wherein R2 and R3 are hydrogen atoms or hydrocarbon residues having up to 8 carbon atoms, R1 is a hydrogen atom or an optionally substituted acyl group having less than 12 carbon atoms, and Z represents a single or double bond, and their preparation from a 2,19-cyclo-steroid of formula <FORM:1064284/C2/3> by treatment with a strong acid or a strong base to give the 2-unsubstituted 10a -CH2OR1 derivative, treating this with bromine to give the 2,4-dibromo-derivative, and treating this with sodium iodide, followed by chromous chloride, to give the 3-keto-D 4-6-unsubstituted 10,a -pregnane derivative of the invention, followed if desired by (a) converting to the 3,20-ethylenedioxy di-ketal, reacting this with a peracid to give the 5a ,6a -oxido-derivative, reacting this with methyl magnesium bromide to give the 5a -hydroxy-6b -methyl derivative, treating this with sulphuric acid to form the 3,20-dione, reacting this with thionyl chloride in pyridine to give the 3-keto-D 4,6b -methyl derivative and, if desired, treating this with an alkali to give the 6a -methyl derivative; (b) reacting a 6-unsubstituted compound of the invention with ethyl ortho-formate to give the 3-ethoxy-D 3,5 derivative, reacting this with either an N-chloro-amide or imide to give the 6b -chloro-derivative or with perchloryl fluoride to give the 6b -fluoro-derivative and, if desired, converting these products with an acid to the 6a -halo derivatives; (c) treating any of the above products of the invention, or their 3-ethoxyD 3,5 derivatives formed by reaction with ethyl orthoformate, with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone to produce, according to reaction conditions, the D 4,6, D 1,4 or D 1,4,6 derivatives; (d) acylation of any 16a -, 17a - or 19-free hydroxyl group; (e) conversion of a 16a ,17a -acetonide or ketonide to the 16a ,17a -diol by treatment with acid; or (f) conversion of a 16a ,17a -diol to an acetonide or ketonide by treatment with a carbonyl compound.  The compounds of the invention are progestational agents and have also anti-androgenic, anti-gonadotrophic and anti-estrogenic properties, may be used in the treatment of pre-menstrual tension, exhibit blood-cholesterol lowering and diuretic properties, and may be used in the treatment of acne.  They may be administered in pharmaceutical compositions in combination with a carrier.
Patent GB-1433005-A (GB)
Title: Constant velocity ratio universal drive
IPC: F16D3/202
Filed: 1973-08-16
Abstract: 1433005 Universal joints WAHLMARK SYSTEMS Inc 16 Aug 1973 [15 Sept 1972] 38666/73 Heading F2U A universal joint comprises a first member 120 having tracks 184 (e.g. flat surfaces parallel to the axis of that member) engaged by three torque transmitting rollers 44 each mounted on a radial arm 54a, 54b, 54c, 154 of a second member 122 at a fixed distance from the rotational axis of the second member, and mounted on the arm for relative rotation and universal joint movement. The mounting on the arm may be by plain and/or needle-roller bearings and/or by barrel shaped rollers 98, 185 arranged as shown. The rollers 98 may be replaced by a cage with four rows of balls (108), Fig. 8 (not shown), the race 100 being suitably modified.
Patent GB-1543357-A (GB)
Title: Coupling system for incorporation in a propulsion system
IPC: B63H23/30
Filed: 1976-09-17
Abstract: The coupling assembly has two outer flexible couplings (8, 23) and a clutch (10) in between. Each flexible coupling (8, 23) allows an axial misalignment between its primary and secondary coupling parts (31 and 32, 35, 36 and 34, 20 respectively). The clutch (10) does not allow such flexibility between its primary and secondary clutch parts (12, 13, 33, 18p and 18s, 37, 19, 14, 17). The coupling assembly permits flexible connection for a small fitting length and can transmit large forces with low wear. <IMAGE>
Patent GB-1162488-A (GB)
Title: Process of Preparing a Hop Extract.
IPC: C12C3/00
Filed: 1968-08-14
Abstract: 1,162,488. Hop extracts. SWAN BREWERY CO. Ltd. Aug. 14, 1968 [Aug. 21, 1967], No. 38849/68. Heading C6E. A hop extract is prepared by washing whole hops with hot water (200‹ F.) and then heating the washed hops with water of a temperature within the range of 220‹- 230‹ F. after adjusting the #H to the desired level of alkalinity, the vessel in which the heating is carried out being vented to atmosphere to allow air and volatile hop oils to escape. The #H is adjusted initially to 9À0 with sodium carbonate ; during the extraction it gradually reduces to 7À0 Œ 1. The extraction is performed at an overpressure of 4 lbs. /sq.in. in a steam jacketed vessel equipped with a sparging ring, slotted plates and a circulating pump. The extract is drained through the slotted plates, cooled to 40‹ F. and stored under a blanket of carbon dioxide. The spent hops may be washed with water or slurried with wort from the kettle.
Patent GB-1287727-A (GB)
Title: Toy construction block set
IPC: A63H33/04
Filed: 1970-08-12
Abstract: 1287727 Toy building blocks TOMY KOGYO CO Ltd 12 Aug 1970 [19 Aug 1969 29 Sept 1969] 38895/70 Heading A6S A building block set comprises blocks 1 each having identical dimensions (Fig. 6) having a square front face a, rectangular rear, upper and lower faces and generally trapezoidal side faces. In the preferred form the blocks have grooves 3, 4, 5 running centrally longitudinally along the base, sides and top surfaces, connecting holes f at the ends and in the base and a circular groove 2 in each side. The blocks may be connected or stacked with or without connecting pins 9 to give structures such as toy figures, e.g. a robot (Fig. 2) or they may be connected together to form a track for a toy vehicle (Fig. 4) in which the grooves 2, 3, 4, 5 serve as guide grooves for a toy vehicle.
Patent GB-1210094-A (GB)
Title: Improvements in or relating to apparatus for forming concrete slabs or strips
Inventor: MORGAN JOHN GUY DAVID
IPC: E01C23/04
Filed: 1967-08-25
Abstract: 1,210,094. Concrete laying machines. BLAW KNOX Ltd. 19 Aug., 1968 [25 Aug., 1967], No. 39326/67. Heading E1G. In a machine for laying a level strip of concrete on to an uneven base, or alongside a previously laid strip, wherein the concrete is fed downwardly from a front hopper 6 and extruded rearwardly through a passage curved as in Specification 1,141,364 to eliminate voids, the hopper and passage are carried by a frame 2 supported on track units 1 by pairs of pillar slides 10, 11 and a pair of rams 12 which are adjusted - e.g. by sensing devices to maintain the required cross-level and height of the extruding passage. The slides 10, 11 are respectively fixed to and pivoted to their associated track frame 8 and are engaged by opposed pairs of adjustable rollers, Fig. 8 (not shown), on the frame 2. The passage is formed by a horizontal extruder plate 23 attached to the frame 2; a floating plate 24 hinged thereto; a hyperbolically curved plate 21 which is resiliently mounted, Figs. 5, 6 (not shown), and actuated by vibrators (18); a front plate assembly 5 whose upper end forms a hopper wall and whose lower end carries an adaptor plate 29; and side plates 7 fixed to the track frames 8. The assembly 5 carries a row of poker vibrators, Fig. 4 (not shown) and is supported on the frame 2 by inclined pillar slides 25 and rams 26 which are controlled by sensors 28 to hold the plate 29 close to the base. The plate 29 shown may be replaced (a) by an apertured or slotted plate, Fig. 7 (not shown), which as the machine advances picks up and positions reinforcement; or (b) a plate Fig. 9 (not shown), having rubber-sealed vertical notches to negotiate the dowel bars (39) of an expansion joint. The hopper 6 incorporates a horizontal distributing auger.
Patent GB-1349461-A (GB)
Title: Air pollution control system and method
IPC: B01D53/50
Filed: 1971-08-23
Abstract: 1349461 Removing sulphur oxides from flue gases COMBUSTION ENG Inc 23 Aug 1971 [24 Aug 1970] 39453/71 Heading C1A Sulphur oxides are removed from the flue gas produced by the combustion of sulphur containing fuels by contacting the gas with a scrubbing stream comprising an aqueous solution of alkaline earth metal bicarbonate, which phase includes those of Ca, Mg, mixtures of these two, and other alkaline earths, whereby the SO 2  content of said sulphur oxides reacts with the bicarbonate to form the alkaline earth metal bisulphite in solution, the amount of bicarbonate in the scrubbing liquor being maintained in excess of the amount required to react completely with said sulphur oxides in the flue gas, and the pH of the scrubbing liquor being maintained between 6À0 and 4À5; the bisulphite containing liquor is contacted with a gas containing free oxygen whereby sulphate is formed and the alkaline earth metal sulphate precipitates, and sulphuric acid is formed in the solution, when alkaline earth metal carbonate is added to the liquor in an amount such that the carbonate reacts with the sulphuric acid to form further alkaline earth metal sulphate which precipitates and alkaline earth metal bicarbonate forms in solution, when the precipitate is separated from the liquid which is then recycled to contact further flue gas. The preferred alkaline earths are calcium, magnesium, and mixtures of the two.
Patent GB-1021353-A (GB)
Title: Mechanism for coating a travelling paper web
IPC: D06N3/00
Filed: 1964-09-29
Abstract: 1,021,353. Web coating apparatus. BELOIT CORPORATION. Sept. 29,1964 [Oct.10, 1963], No. 39595/64. Heading D1L. Travelling web coating mechanism comprises a curved downwardly-facing backing surface for supporting the travelling web, means for applying coating to the surface of the web, a doctor blade which is held against the coated surface of the web following the coating applying means and is located on the uprunning side of the web, and means acting to retain a pool of coating against the web in advance of the blade. In the arrangement shown rotary backing roller 10 supports travelling web W and is driven by means 10a. Coating is applied to the web by applicator roller 11 driven by means 11a and partly immersed in coating pan 12. The coated surface is engaged by a trailing doctor blade 14, and a pool 16 of coatirg is maintained in advance of blade 14 by a flexible strip or cup 15 formed of a resilient springy material, the excess coating flowing over edge 20 or out at each end. The strip 15 is preferably secured to the base of blade 14 and held between clamping members 17 and 18. The pool 16 is formed by coating material from the web and causes higher hydraulic pressures between blade 14 and the web W. In a second embodiment a non-resilient member is adjustably fixed ahead of the blade 14 so as to permit a pool of coating to form between it and the blade.
Patent GB-1173142-A (GB)
Title: Improvements in the making of Protective Clothing Material
Inventor: AINSWORTH MARK
IPC: C07C69/675
Filed: 1965-09-20
Abstract: 1,173,142. Air-permeable protective clothing. SECRETARY OF STATE FOR DEFENCE. 28 Nov., 1966 [20 Sept., 1965], No. 40059/65. Heading B2E. A process of making air-permeable protective clothing material presenting an effective barrier to the passage in one direction of offensive liquid or vapour while permitting the passage of heat and perspiration in the reverse direction, includes the steps of treating a highly air permeable cloth with an oleophobic compound to renew its liquid repellent on one side and, either before or after such treatment, applying an adhering coating of particles of absorbent charcoal as only a surface layer on the other side. The charcoal particles, which may be from 0.5 to 50 microns in size, may be sprayed on to the cloth as a suspension in an aqueous medium in admixture with a thickener e.g. cellulose ethers such as_methyl cellulose, casein, and a bonding agent e.g. natural rubber latex in an alkaline coating mixture. The cloth may be woven, non woven, knitted or a composite fabric of natural or synthetic fibres, or combinations thereof, at least in part a non woven cloth of synthetic fibres, or a non-woven layer of synthetic fibres bonded to a layer of highly permeable knitted or woven fabric. The non woven fabric may consist of a major proportion of polyester or polyamide e.g. nylon, fibres and a minor proportion of viscose fibres bonded with neoprene or chloroprene, and may have a lightweight cotton scrim reinforcement bonded thereto. The cloth before treatment may have an air permeability of at least 150 linear feet per minute under a pressure of ¢ inch water gauge and at least 100 linear feet per minute in the final state. The liquid repellent compound may be both a water-repellent and an oil-repellent compound consisting of or containing a fluorocarbon compound, which may have a fluorocarbon chain and an end-group capable of being attached to either natural or synthetic fibres by physical or chemical means. The cloth may be immersed in a bath of liquidrepellent compound, thereafter passed through squeeze-rolls to expel compound, dried and heated to cure and at least partly bond the compound to the cloth, and the charcoal coating subsequently applied to the cloth. A flame retardent e.g. antimony oxide, may be incorporated to render the finished clothing material flame retardent.
Patent GB-1092736-A (GB)
Title: Reciprocatory spark ignition internal combustion engines
IPC: F02B75/12
Filed: 1965-09-21
Abstract: 1, 092,736. Combustion chambers. FORD MOTOR CO. Ltd. Sept. 21, 1965 [Sept. 29, 1964], No.40143/65. Heading F1B. Swirling air in the cylinder is forced by squish action through a passage 28 into the combustion chamber 26 into which fuel or rich mixture has been injected, the entering air forcing the mixture in chamber 26 towards a spark plug 32. In Fig. 1 rich mixture is introduced through passage 36 and valve 34 during the early part of the compression stroke, alternatively the fuel may be injected through a fuel injector (40) Fig. 2 (not shown). In Fig. 3 (not shown) the injector (56) is situated in the air intake passage (58). In a modification the combustion chamber is formed in the piston.
Patent GB-1123603-A (GB)
Title: Apparatus for use in the manner of using a blackboard
IPC: B43L1/06
Filed: 1965-09-21
Abstract: 1,123,603. Blackboards. PILKINGTON BROS. Ltd., and J. W. NIGHTINGALE. 13 Sept., 1966 [21 Sept., 1965], No. 40214/65. Heading B6P. [Also in Division G2] Apparatus for use as a blackboard comprises a panel 1 of transparent material and a backing 5 of opaque material, the writing face 6 of the panel being rendered diffuse reflecting e.g. by stippling, and the reverse face 7 being roughened e.g. by sandblasting, to prevent formation of a secondary image when information is written on the surface 6. The backing 5 may consist of an opaque coating or may be a separate element with e.g. graph-paper markings thereon. If a separate backing 5 is employed, it may be longer than the panel 1 and contain parts with different markings thereon, so that by sliding the backing 5 relatively to the panel, a different background marking can be effected. For this purpose, the backing 5 may be wound on rollers. The panel 1 may be of toughened glass or transparent plastic. The parts 1,5 5 may be held in a frame 2 by removable strips 3 and interposed strips 4 of sponge rubber. The device may be used as a screen for a projector if the backing 5 includes a white pigment.
Patent GB-857868-A (GB)
Title: Phosphate-modified starches
IPC: C08B31/06
Filed: 1957-12-30
Abstract: An alkali metal phosphate-modified starch of increased viscosity in water is produced from an alkali metal phosphate-modified starch, (obtained by reaction of ungelatinized starch with an alkali metal orthophosphate at a temperature between 120 DEG  and 175 DEG C.) by dispersing said modified starch in water, adding to the dispersion an inert oxygen-containing water-miscible organic liquid in a quantity sufficient to produce a mixed solvent containing between 35 and 65% by volume of said organic liquid, whereby there is precipitated a modified starch fraction of higher viscosity than the original material, and separating the precipitate from the slurry.  It is advantageous to allow the dispersion to stand for 2-24 hours before the precipitation step which is then carried out at between 10 and 75 DEG C.  Suitable precipitants are acetone, dioxane, tetrahydrofurfuryl alcohol, aliphatic monohydric and polyhydric alcohols, ether alcohols and glycol diethers.  The dispersing and precipitating steps may be carried out two, three or more times. Specifications 812,339, 812,340 and 812,363 are referred to.ALSO:An alkali metal phosphate-modified starch of increased viscosity in water, made by dispersing in water and precipitating with an oxygen-containing water-miscible organic liquid an alkali metal phosphate-modified starch obtained by reaction of starch and an alkali metal orthophosphate (see Group IV(a)), is used as a desliming agent in potash ore flotation.  Specifications 812,339, 812,340 and 812,363 are referred to.ALSO:An alkali metal phosphate-modified starch of increased viscosity in water, made by dispersing in water and precipitating with an oxygen - containing water - miscible organic liquid an alkali metal phosphate-modified starch obtained by reaction of starch and an alkali metal orthophosphate (see Group IV(a)), is used as a sizing agent in the surface finishing of paper. Specifications 812,339, 812,340 and 812,363 are referred to.ALSO:An alkali metal phosphate - modified starch of increased viscosity in water, made by dispersing in water and precipitating with an oxygen-containing water-miscible organic liquid an alkali metal phosphatemodified starch obtained by reaction of starch and an alkali metal orthophosphate (see Group IV(a)), is used as a thickening agent in food products, such as soups, puddings, salad dressings, mayonnaise, pie fillings and ice cream. Specifications 812,339, 812,340 and 812,363 are referred to.
Patent GB-1244660-A (GB)
Title: Decorative and protective fender for vehicle bodies
IPC: B60R19/44
Filed: 1968-08-22
Abstract: 1,244,660. Vehicle bumpers. PEBRA G.m.b.H. PAUL BRAUN. 22 Aug., 1968 [1 Sept., 1967], No. 40300/68. Heading B7J. A decorative and protective fender for a vehicle body comprises an elongated metal rail 1 of channel cross-section adapted to be fitted to the vehicle body with the mouth of the channel opening towards the body, the rail having a longitudinal groove 3 of dove-tail cross-section formed in its base portion to open outwardly of the vehicle body in which groove is anchored an edge portion 4 of a resilient member 2 of rubber or flexible plastics, the member 2 extending from the edge portion 4 around the side of the metal rail that is lower in use and across the mouth of the channel. A projecting fillet 8 of member 2 embraces the lower one, in use, of a pair of substantially coplanar flanges 6, 7 formed on the longitudinal side walls of the metal rail, and extending across the mouth of the channel, and a bulge 9 on member 2 adjacent the edge portion 4 gives added protection against impact. An end cap extends obliquely across each end of the protective rail and is formed of a plate 10 shaped to correspond with the shape of the end of the rail and having flanges 11 and 12 and a rib 13 for engaging the interior of the metal rail 1. Part of the rail is cut away to accommodate the flange 11.
Patent GB-1158318-A (GB)
Title: Improved Weight Measuring Apparatus.
Inventor: LEONOWICZ JAN
IPC: G01G3/145
Filed: 1965-09-24
Abstract: 1,158,318. Voltage measurement. W. & T. AVERY Ltd. Sept.26, 1966 [Sept.24, 1965], No.40752/65. Heading G1U. [Also in Divisions G4 and H3] In a weight measuring system in which an electrical signal analogue of the weight to be measured is produced, the electrical signal is converted to a digital representation in a fairly conventional manner (see Division G4) and an analogue indication of the electrical signal is provided when its value is below that corresponding to the least positive digital indication. This enables zero drift in the weighing system to be observed. The analogue indication may be provided by a centre zero meter or, in a much better system, by a magic eye indicator. When there is a zero digital indication, i.e. the input lies between Œ 1 digit, an AND gate AG responding to all the digit zeros switches on a transistor 18 to apply reverse volts to a diode 11. This ensures that the input signal (from amplifier A) is applied via the emitter follower 1 and amplifier stages 2, 3 to a magic eye indicator 16. The size of the eye is adjustable on potentiometer 7 so that it is halfway along the tube at accurate balance, while resistors 5 and 6 control the gain of the system so that the eye is fully open or closed at Œ¢ digit. Capacitor 17 provides a low pass filtering characteristic.