baber/WOPTO huggingface dataset:
Patent GB-279676-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F7/06
Filed: 1926-12-22
Abstract: 279,676. Johnson, E. W., and Defries, C. Dec. 22, 1926. Vibration-dampers. - In apparatus in which a drum b on one movable element a is engaged by an expanding band h anchored by the pin j on the other movable element c, the friction between the two may be modified by pressure applied in a tangential direction to the free end as by a lever k. One end of the lever engages the end of the band h, an intermediate part engages the part of the band which encircles the pin j, and the other end engages an adjustable eccentric l on the centre pin of the apparatus. In a modification, the end of the lever k encircles the eccentric and an adjustable screw carried by the lever engages the pin i directly, the band being cut away at this point. The eccentric may be adjusted and locked from the outside by a pointer, the end of which engages slots or recesses in a plate.
Patent GB-231242-A (GB)
Title: Improvements in or relating to cementitious materials
IPC: C04B28/04
Filed: 1923-12-29
Abstract: 231,242. Lefebure, V. Dec. 29, 1923. Compositions containing cement, plaster, &c., and synthetic resins.-Cement, plaster, or like liquid-setting cement is mixed with a material such as phenol-, urea-, or thiourea-formaldehyde condensation products, capable of being rendered plastic and of setting to an irreversible product by heat, liquid is added, the mass is moulded and allowed to set, and is finally heated to convert the condensation product into its final form. The synthetic resin may be added as powder or liquid, in quantity preferably less than 10 per cent of the cement, but if desired up to 50 per cent. When high percentages are added, e.g. to Portland cement, it is advantageous to add the resin adsorbed or mixed with a filler as kieselguhr or colloidal clay, in order that the setting properties of the cement may not be impaired. The final heating may be by direct stream, with or without mechanical pressure. Specification 217,279 is referred to.
Patent GB-225082-A (GB)
Title: Improvements in or relating to clothes props
IPC: D06F53/04
Filed: 1923-12-31
Abstract: 225,082. Woodcock, R. A. Dec. 31, 1923. Clothes-props.-A clothes-prop is provided with an M-shaped cap b of metal having a hook c for retaining the line in position.
Patent GB-624016-A (GB)
Title: Manufacture of tertiary and quaternary trisubstituted acetic acid aminoalkyl esters
IPC: C07D295/088
Filed: 1946-11-01
Abstract: Tertiary and quaternary aminoalkyl esters of a -phenyl-a -oxyacetic acids which contain as a further substituent in the a -position an alkyl radical of at least 4 carbon atoms are prepared by reacting the appropriate a -substituted-a -phenyl-a -oxyacetic acid or a reactive derivative thereof with a tertiary or quaternary amino alkanol, or by reacting a reactive ester of a tertiary or quaternary amino alkanol with the acid or a salt thereof.  The products, when they contain a tertiary amino group, may be converted into their quaternary salts. In an example, a  - phenyl - a  - amyl - a  - oxyacetic acid reacts with chlorethyldiethylamine in ethyl acetate in the presence of potassium carbonate giving a  - phenyl - a  - amyl - a  - oxyacetic acid diethylaminoethyl ester, which may be converted into its hydrochloride.  Similarly, the dimethylaminoethyl ester may be prepared, which may be converted into its ethyl bromide or methyl chloride. a -Phenyl-a -butyl-a -oxyacetic acid and a -phenyl-a -hexyl-a -oxyacetic acid react similarly.  Instead of the ethylaminoethyl and methylaminoethyl esters, the corresponding piperidinoethyl, diethylaminobutyl, diallylaminoethyl, morpholinoethyl and methyl-propylaminoethyl esters and quaternary salts thereof may be prepared.  Trisubstituted acetic acids, e.g. phenyl-amyl-oxyacetic acid and phenyl-butyl-oxyacetic acid, used as starting materials are obtained by reacting a benzoyl-formic acid ester with an organo-metallic compound to convert the keto group into a group of the formula <FORM:0624016/IV (b)/1> where R is an aliphatic hydrocarbon radical containing at least 4 carbon atoms, and hydrolysing the product to obtain the free acid.  The Specification as open to inspection under Sect. 91 comprises also the use as starting materials of amino alcohols in general. This subject-matter does not appear in the Specification as accepted.
Patent GB-164402-A (GB)
Title: Improvements in and relating to printing machines
IPC: B41F13/00
Filed: 1919-12-29
Abstract: 164,402. Mascord, G. W. Dec. 29, 1919. D r i v i n g printing- machines; stopping and starting arrangements.- In a rotary intaglio printing-machine an electric motor is provided for continuing the drive of the intaglio cylinder when the machine is otherwise stopped and the impression cylinder is tripped. A member b, keyed to the shaft a' of the intaglio cylinder a is formed with two cylindrical surfaces b', b<2> of different diameters on which are loosely mounted a gear-wheel c and a sprocket-wheel d, which are formed on their inner peripheries with wedgeshaped recesses c<1>, d' in which are arranged rollers e adapted to clutch the wheels c, d to the member b. The wheel c normally gears with a driving-wheel on the shaft of the impression cylinder h and the wheel d is connected by a chain g to the special electric motor f, the starting switch of which is adapted to be operated automatically when the main drive of the machine is arrested and the gear c disconnected by the tripping of the impression cylinder.
Patent GB-1510293-A (GB)
Title: Manufacture of semiconductor devices
IPC: H01L21/285
Filed: 1976-08-05
Abstract: 1510293 Semiconductor devices SELENIAINDUSTRIE ELETTRONICHE ASSOCIATE SpA 5 Aug 1976 [8 Aug 1975] 32701/76 Heading H1K In a process for manufacturing a semiconductor device, an electrode 2<1> (Fig. 3) is formed by chemically underetching a metal layer below an elongate layer 3 defined photolithographically; evaporating separated ohmic contacts 5, 6 (Fig. 4) on each side of electrode 2<1>, using the layer 3 as a mask; then removing layer 3 before alloying the contacts 5, 6 under a protective layer 8 of inert material to yield the structure of Fig. 6. Suitable materials for layers 3 and 8 are photoresist and CaF2 respectively. The process may be used to fabricate a Schottky barrier FET, of which the gate and source and drain are formed by electrode 2<1> and contacts 5 and 6 respectively.
Patent GB-138597-A (GB)
Title: Improvements in multiple-stage pressure stage turbines
IPC: F01D1/02
Filed: 1919-12-30
Abstract: 138,597. Maschinenfabrik Oerlikon, and Karrer, J. Feb. 7. 1919. [Convention date]. Regulating.-In turbines having a number of pressure stages and provided with auxiliary ducts 5 for overload steam, this steam, after traversing the first stage or one of the first stages, does not flow immediately into the succeeding stage, but is first diverted outwards by a duct 6 into a chamber 7 and then past a valve 4 and inwards through a duct 9 to one of the subsequent stages. The overload ducts may be subdivided into two ot more independent groups supplying different stages or groups of stages.
Patent GB-1010578-A (GB)
Title: Improvements in and relating to a method for controlling a once-through boiler and controlling system for performing the method
Inventor: KOLLERUP VAGN
IPC: F22B35/10
Filed: 1963-08-19
Abstract: 1, 010, 578. Automatic temperature control systems. BURMEISTER & WAIN'S MASKIN-OG SKIBSBYGGERI, A.B. Aug. 19, 1963 [Aug. 27, 1962], No. 32727/63. Heading G3R. [Also in Division G1] A once-through boiler is controlled in response to an indirect expression for the heat content at a point where the medium is in the form of vapour or water-vapour mixture. As shown, some steam is bled off at point D, between evaporator 22 and presuperheater 23 and brought to a standard pressure and rate of flow by valve G and orifice N. This steam sample is heated to a predetermined temperature, measured at L, by an electric heater 0 controlled by a servomotor driven rheostat K. The amount of energy supplied to 0 is a measure of the heat content at point D and is used to adjust the feed water inlet valve A1 when the heat content is outside predetermined limits. The valve A1 is adjusted also in response to flow signals from orifices B1 and B2. Signals from the latter may also be used to modify the heat measurement signal at R3 to compensate for load changes, when the steam conditions at point D are required to be correspondingly different for a given constant output temperature. Conditions are normally such that heat must be be added at 0, but if they are otherwise, the reference temperature at L is automatically adjusted until the heat requirement is zero, the amount of adjustment necessary being a measure of the steam conditions in that case. A correction to the heat content signal may be made by an arrangement (Fig. 4, not shown) which accurately measures the flow through the orifice plate N. This comprises a means of condensing the output from N. heating the condensate by a controlled quantity of heat, and measuring the resulting temperature rise. It is stated that the boiler output temperature at A2 may be adjusted in known manner by injecting feed-water at A 3  and A 4  in response to temperature measurements made immediately after those points. (Sections 24 and 25 are superheaters). The control system of the invention may adjust the fuel supply instead of the feed water at A 1 .
Patent GB-462164-A (GB)
Title: Improvements in and relating to reversible reduction gear
IPC: F16H3/00
Filed: 1936-12-01
Abstract: 462,164. Reversing - gearing. BRASFIELD, E. W., and WRIGHT, R. D. Dec. 1, 1936, No. 32979. [Class 80 (ii)] Reversing-gearing suitable for boats, hoists, &c. comprises two parallel countershafts 7, 8 geared together by a constant-mesh toothed pair 12, 13. Either of these countershafts according to the hand of the engine is driven by a gear 10 on the countershaft, meshing constantly with a gear 11 on a clutch shaft 5. A driven shaft 6 in line with the clutch shaft 5 has a fast gear 14 adapted to be engaged and driven alternatively by pinions 15, 16 splined on the shafts 7, 8 respectively. As a lever 17 connecting these pinions is thrown over by hand, the drive of the shaft 6 is reversed. This change of mesh is facilitated by a prior opening of an engine clutch 3, and an application of a brake 18 to slow down the shaft 6.
Patent GB-1160602-A (GB)
Title: Improvements in and relating to the manufacture of Seats in particular for Vehicles
Inventor: LOWE FREDERICK GEORGE
IPC: B29C33/38
Filed: 1967-07-19
Abstract: 1,160,602. Vehicle seat. UOP BOSTROM (UK) Ltd. 28 May, 1968 [19 July, 1967], No. 33073/67. Heading B5A. A one-piece cover or skin of synthetic material for an upholstered seat is made by manufacturing a master pattern comprising a cushion of foam material covered with a skin formed of shaped pieces of leather or other natural skin, impregnating the foam material with a synthetic resin and causing or allowing the impregnating resin to harden so rendering the master pattern rigid, making a mould from the master pattern and forming in said mould a one-piece seat cover or skin in synthetic material by casting, slush moulding or spraying. The mould is formed from the master pattern either by spraying the master pattern with metal, until with or without reinforcements a rigid mould is formed or by forming an epoxy resin mould from the master pattern, forming a rubber pattern from the resin mould and producing a metal mould from the rubber pattern. Flanges may be added to the master pattern. A foamable synthetic resin may be used so that when it is cured in a mould a solid skin is formed in contact with the mould backed by a foamed mass.
Patent GB-1057026-A (GB)
Title: Forging presses
Inventor: SIMS RAYMOND BERNARD
IPC: B21J9/20
Filed: 1962-08-29
Abstract: 1,057,026. Forging. DAVY & UNITED ENGINEERING CO. Ltd. Aug. 13, 1963 [Aug. 29, 1962], No. 33078/62. Heading B3H. In a forging operation using a press 12 and manipulator 13, wherein the workpiece is forged along its length in a series of bites and is supported elastically on the manipulator which moves continuously, the period of the first press cycle is used to set the manipulator speed for succeeding cycles such that in this period the workpiece moves a distance substantially equal to the desired bite or a preset maximum distance. The manipulator peel 14 is mounted for longitudinal elastic movement relatively to its carriage 13 whereby the latter can be driven continuously by its wheels 16 and during the actual forging the elastic mounting is compressed and is restored to its original relative position when the workpiece is released. Manipulator carriage is driven by hydraulic means supplied by a variable delivery pump having a cam plate of variable inclination controlled by an amplifier 35. The delivery is set according to the desired bite up to 3 inches by a digital system, Fig. 1 (not shown), which passes signals through line 31, gates 32, 33 and modulator 34. The amplifier also receives signals corresponding to the actual manipulator velocity through line 36, and the actual cam plate inclination through line 37. If a bite greater than 3 inches is required, the press stroke is delayed until the required bite is reached by a digital control system, Fig. 3 (not shown). The total travel of the manipulator is set by dials G1 or if the entire workpiece is to be forged, a pressure sensitive switch stops the hydraulic supply to the press when the tail end of workpiece has passed through.
Patent GB-212297-A (GB)
Title: Improvements in and relating to acetylene lamps
IPC: C10H15/06
Filed: 1922-12-04
Abstract: 212,297. Redmayne, L., (Williams, F. H., and Weatherall, M. E.). Dec. 4, 1922. Solid supply to liquid.-An acetylene generator of the carbide-to-water type for use with lamps, &c. and in which the carbide supply is controlled by a valve p suspended from the gas-holder e, the latter is arranged to be kept in its raised position when the lamp is not in use, by means of a nut k mounted on the outlet pipe h and which can be screwed down on to the cover b of the water vessel a. The carbide-container g is supported from the base of the generator by standards f secured at their lower ends to a ring f<2>; to this ring is secured an outer set of standards f<3> terminating in their upper part in a ring f<4> from which a. short cylinder c is supported; the cylinder prevents a. large accumulation of gas due to escape from the lower edge of the holder. The carbide-feed valve p which may be of the differential type, is positioned centrally in the lower part of the carbide-holder and is suspended by means of a rod o from a perforated plate or collar k<4> in the outlet pipe ; a stirrer for agitating the carbide may be mounted above the valve.
Patent GB-773554-A (GB)
Title: Improvements in or relating to safety control arrangements for gas heated appliances
IPC: F23N5/06
Filed: 1954-11-16
Abstract: 773,554. Valves. KROMSCHRODER AKT.- GES., G. Nov. 16, 1954 [Nov. 16, 1953]. No. 33170/54. Addition to 726,912. Class 135. In a safety device for gas-heated appliances as claimed in the parent Specification, the retarder for the auxiliary valve is wholly within a hollow portion of the main gas cock. With the cock 4 closed a pin on the knob' enters coinciding slots in the casing 3 and in the cock and allows the knob to be pushed in against the spring 6, engage the spring-loaded stem 7 and open the auxiliary valve 17, the closing movement of which due to the spring 9 is slowed down by a piston 12 on the stem 7 moving in silicon oil in a dashpot 15 within the cock. A disc 14 uncovers ports 13 in the piston when it moves to the right, but closes the ports when it moves to the left. On releasing the knob and rotating it so that the pin moves in coinciding circumferential slots in the cock and casing, the cock is opened and gas flows from the inlet 25 via cock port 16 and auxiliary valve to a burner inlet 24. When the burner is lit a thermal element is heated and moves a plunger 20 into the path of the slowly closing auxiliary valve and prevents it from closing.
Patent GB-376167-A (GB)
Title: Improvements in double-row roller bearings
IPC: F16C23/08
Filed: 1931-11-30
Abstract: 376,167. Roller bearings. WING- QUIST, S. G., Remningstorp, Skara, Sweden. Nov. 30, 1931, No. 33199. Convention date, July 29. [Class 12 (i).] In a double-row roller bearing of the self-alinging type having a roller guide ring 8 to prevent the rollers from tilting the ring is made resilient and has an outer diameter greater than the bore of the outer race ring at the edges thereof so that it can be assembled bv deformation. The ring 8 may float upon the rollers 3 or it may be carried by the spacing cage 7. Alternatively the perimeter of the ring 8 may correspond with the spherical bore of the outer race ring as shown. The end faces of the rollers that contact the ring 8 may be spherical the sides of the latter being conical or having a contour corresponding to the end faces of the rollers.
Patent GB-966117-A (GB)
Title: Cigarette making machine
IPC: A24C5/39
Filed: 1961-09-15
Abstract: 966,117. Cigarette-making machines. AMERICAN MACHINE & FOUNDRY CO. Sept. 15, 1961 [Sept. 22, 1960], No. 33250/61. Heading A2C. In a cigarette-making machine employing a winnower for dispersing tobacco over a wide area, a winnower having straight baffle bars, the opposite ends of which are formed with inclined surfaces, is provided to deflect some of the tobacco shreds near the sides of the area toward its centre. As shown in Fig. 2 the inclined surfaces 38 are constituted by small wedges on the end of the baffles 37 of the winnower 18. Alternatively the inclined surfaces may be made by bending the ends of the baffles 37, (Fig. 3, not shown). Specification 780,108 is referred to.
Patent GB-1320995-A (GB)
Title: Power transmitting means
IPC: F16D3/02
Filed: 1971-07-16
Abstract: 1320995 Shaft couplings TWIN DISC Inc 16 July 1971 [23 July 1970] 33433/71 Heading F2U A torque transmitting coupling between two generally concentric parts 20 and 10 or 40, (e.g. of a clutch similar to that of Specification 1,016,438) includes centring devices CD1, CD2 including levers 70, 80 pivotally mounted, as at 72, 81, on one of the parts 20 and abutting (surfaces 74, 82) the other part 10, 40, centrifugal force acting on the levers maintaining the abutment. As shown, the levers 70, 80 are held in abutment with the surfaces 74, 82 by springs 73, 84 even when the coupling is not rotating. As shown there are three concentric parts with two sets of centring devices CD1, CD2 the levers 70 of the radially inner devices being longer than those 80 of the others. The devices CD1, CD2 centre the parts 10, 20, 40 by eliminating backlash between teeth 79, 79a, 86, 86a.
Patent GB-486547-A (GB)
Title: Improvements in recoil-operated firearms
IPC: F41A3/44
Filed: 1936-12-05
Abstract: 486,547. Firearms. SANDERS SMALL ARMS, Ltd., and SANDERS, T. F. Dec. 5, 1936, No. 33451. [Classes 92 (ii) and 119] A recoil-operated gun mounted on a support to recoil longitudinally thereon against resilient means comprises in combination a locking member 9 movable parallel to itself guided by substantially perpendicular surfaces 14 on the barrel part 1 and by oblique surfaces 15 on the support 2, a detent 16 for holding the barrel part 1 in its recoiled position whilst the breechbolt 6 continues its rearward movement to open the breech and makes its return movement to reload the gun and again close its breech, and means actuated by the breech-bolt for releasing the detent as the breech-bolt returns to the firing position. As shown, the short recoil of the barrel part is taken up by a spring 4, and the detent 16 is pivoted on the support 2 and urged by a spring 18 into engagement with a notch 19 in the barrel part 1. When the breech bolt returns to the firing position, one arm 23 of a bell-crank lever is deflected by a shoulder on the breech bolt, and the other arm 22 of the bell-crank lever withdraws the detent 16 from the notch 19, allowing the barrel part to return forward under the action of spring 4.
Patent GB-325501-A (GB)
Title: Improvements in collapsible handles for wringing machines
IPC: D06F45/00
Filed: 1928-11-19
Abstract: 325,501. Timpany, J. C. Nov. 19, 1928. Hand driving-mechanism. - A folding hand crank is hinged to a boss 2 secured to the screwed &c. end of one of the roller-shafts, the hinge 3 being on one side of the axis and a detachable connection for the crank arm on the opposite side. The connecting means comprises a lug 12 on the crank arm with a keyhole form of opening 13 which passes over the threaded stem of a thumb screw 11 but is gripped by the enlarged shank 10,
Patent GB-805253-A (GB)
Title: Improvements relating to packing rings
Inventor: NEWTON SIDNEY LEONARD CHARLES
IPC: F16J15/32
Filed: 1955-11-25
Abstract: 805,253. Piston and stuffing-box packing. TRIST & CO. Ltd., R. Nov. 26, 1956 [Nov. 25, 1955], No. 33887/55. Classes 122 (1) and 122 (5). Piston or stuffing-box packing 6 comprises a sealing ring 8 of deformable material such as rubber and two backing rings of firmer material 10, 11 separated by an axially projecting tongue 9 of the ring 8. The backing rings are of laminated fabric bonded by rubber and they and the sealing ring may be separate from each other and any or all rings may be segmental or split but, preferably, all three are undivided rings bonded together to form a unitary packing. The sides of the sealing ring 8 may be tapered and formed with lips 14 as shown in Fig. 2, or the ring may be of U or part-circular cross-section. In a further arrangement, Fig. 6 (not shown), two packings as shown in. Fig. 2 are housed back-to-back in recesses in a piston so that they seal in opposite directions. Sealing in both axial directions may also be achieved by the single packing shown in Fig. 5 which has a second tongue 9<SP>1</SP> separating two further backing rings 10<SP>1</SP>, 11<SP>1</SP>.
Patent GB-470317-A (GB)
Title: Hairclips, hair-curlers, hair fastenings and ornaments
IPC: A45D8/14
Filed: 1936-12-10
Abstract: 470,317. Hair pins and curlers. WULF, A., (trading as WULF CELLULOIDWARENFABRIK, A.). Dec. 10, 1936, No. 33923. Convention date, June 9. Drawings to Specification. [Class 131] [Also in Group XV] A hair-pin, clip, curler, or other hair fastening or ornament is provided on that portion which is visible when in use with a covering of minute fragments of threads, the article being first treated with adhesive and the fragments of thread being sprayed onto the adhesive. The threads may be chosen to suit the colour of the hair.
Patent GB-969620-A (GB)
Title: Improvements in vehicle suspensions
Inventor: LAWRENCE CHRISTOPHER JOHN
IPC: B60G3/20
Filed: 1960-10-04
Abstract: 969,620. Road vehicle independent suspensions. LAWRENCETUNE ENGINES Ltd. Jan. 4, 1962 [Oct. 4, 19601, No. 34013/60. Heading B7D. A wheel suspension comprises upper and lower trailing arms mounted on hinge pins 3, 4 such that lines drawn parallel to hinge pins 3, 4 through the ball joints 16, 17, connecting the arms 1, 2 to wheel support 15, meet at a point. In order that the wheel should remain perpendicular to the road during suspension movements upper arm 1 is longer than lower arm 2 and the hinge pins are inclined upwardly and outwardly the inclination of pin 3 being the greater. Brackets 21, 20 are provided for a coil spring/damper unit and a steering or stabilizing link depending on whether the wheel is a front or rear wheel. In an alternative a progressive rate torsion bar spring is used.
Patent GB-1156959-A (GB)
Title: Mobile Transport Device for Furniture
IPC: A47B55/00
Filed: 1967-07-25
Abstract: 1,156,959. Hand trucks. MANN MOBELUND EINRICHTUNGSHAUSER K.G. 25 July, 1967 [26 July, 1966], No. 34050/67. Heading B7B. A hand truck comprises a central part 1 having a V-shaped base 2, uprights 5 and horizontal extensions 4. Secured to the uprights 5 are the limbs 13 of a handle member 14, and two C-shaped frames 6, castor wheels being provided on the members 6 and 13. Boards are placed across the arms 4, 8 and across the base members to form shelves.