baber/WOPTO huggingface dataset:
Patent GB-469018-A (GB)
Title: Improvements in or relating to the generation of mechanical waves of supersonic frequency
IPC: G10K11/02
Filed: 1936-01-14
Abstract: 469,018. Piezo - electric vibrators. SCOPHONY, Ltd., and JEFFREE, J. H. Jan. 14, 1936, No. 1181. [Class 40 (iv)] [Also in Group XL] In a device for generating mechanical waves of supersonic frequency in a body and comprising a piezo-electric crystal assembly adapted for excitation by electrical currents of the desired frequency, there is interposed between the crystal assembly and the body and intermediate layer of a third substance having a thickness of substantially one half wave-length or an odd number of half wave-lengths, the intermediate layer being in contact with the body and separated from the crystal assembly by a space filled with a material having an acoustic refractive index less than that of the crystal assembly and not less than that of the body, the thickness of the material in the space being substantially one quarter of a wave-length or an odd number of quarter wavelengths and the third substance having an acoustic refractive index which is intermediate of those of the crystal assembly and the material in the space. The third substance may be aluminium or a glass having a suitable acoustic refractive index, and the material in the space may be wax, cellulose, shellac, resin, the material known under the Registered Trade Mark " Cellophane," or the material of the body. The device may be used in the lightmodulating arrangement described in Specification 439,236, [Group. XL]. Specification 466,212 also is referred to.
Patent GB-1059684-A (GB)
Title: Dispensing method and apparatus
IPC: B65B43/44
Filed: 1965-01-11
Abstract: 1,059,684. Dispensing nested articles. KEYES FIBRE CO. Jan. 11, 1965 [Jan. 29, 1964], No. 1257/66. Heading B8S. The discharge of nested articles 12 singly from the bottom of the magazine 22 is controlled by the movement of retaining means 24, stripping means 26, sensing means 28, and second retaining means 36. Each element of the discharging means has a movement as indicated by the arrows. Thus, retaining means 24 carries resilient pad 34 and reciprocates horizontally as at 32; stripping means 26 reciprocates horizontally as at 44 and also reciprocates vertically relative to means 24 as at 46; sensing means 28 reciprocates horizontally as at 50, and retaining means 36 reciprocates horizontally as at 40. Additionally, the means 24, 26 and 28 also reciprocate vertically together as indicated at 52 and 54. Operation.-At the beginning of a cycle the articles 12 rest on retaining member 36 and the means 24, 26 and 28 are positioned to the left out of engagement with the edges of the articles. Sensing means 28, together with means 24 and 26, move upwards, the sensing means moving rightwards to engage the underneath of the edge of the bottommost article. This positions means 24 and 26, which then move rightwards and insert themselves between the bottommost and the next bottommost article. At this stage the weight of the bulk of the articles is taken by retaining means 24. In the second stage of the movement, retaining means 36 and sensing means 28 move leftwards to expose the bottommost article and stripping means 26 moves downwards in accordance with arrow 46 to strip away and discharge the bottommost article. The means 24, 26, 28 then move downwards together to allow the stack of articles resting on means 24 to advance downwards and to be met by the movement of retaining means 36 rightwards upon which the stack now comes to rest. Means 24, 26, 28 now move leftwards to bring the cycle to an end. Alternatively, the required movements of the means 24, 26, 28 and 36 may be effected pivotally at 58, 62, 60, 64 respectively. The embodiment of the invention is as set forth in Specification 1,059,683.
Patent GB-656956-A (GB)
Title: Improved method for the production of the rotary elements of toy inertia wheel motors
IPC: B22C9/06
Filed: 1949-01-17
Abstract: 656,956. Casting toys. MEJLSO, G. M., and HEIMANN, E. S. Jan. 17, 1949, No. 1261. [Classes 83 (i) and 83 (ii)] Moulds.-The rotary elements of toy inertia motors are die-cast simultaneously so as to be connected by spoke-like sprues which are then broken off. Die parts 1 and 2 co-operate to form an inlet 6 for molten metal connected by three spoke-like sprues 7 to three die cavities. In one of these is cast a pinion 11 with an axial hole formed by a core pin 9; in another, integral pinions 13 and 15 with a hub-like protuberance 30 and pintles 16, and in the third an integral structure comprising an inertia wheel 21 connected by spokes 23 to a hub 19 having at one end a pinion 20, both the pinion and the inertia wheel having blind axial holes formed by cores 25, 26. After removing the casting from the dies, the three parts are broken from the sprues along the lines x-x and then trimmed. The lower die-part may include three ejector pins 29 at each of the casting cavities and two at the position where the three spoke-like sprues meet.
Patent GB-1126737-A (GB)
Title: Evaporative heat exchangers
IPC: F28C1/02
Filed: 1966-01-11
Abstract: 1,126,737. Cooling towers. BALTIMORE AIRCOIL CO., Inc. 11 Jan., 1966 [15 Jan., 1965], No. 1281/66. Heading F4K. [Also in Division G3] An evaporative heat exchanger has a chamber (10, Fig. 1, not shown) with a group of troughs (11) and a sump (12), each trough having V-notches 13, Fig. 3, in its side walls those in one wall being offset relative to the notches in the other wall. Water spilling from the notches passes heat-exchanger tubes (14) in droplet form and is collected in the sump (12) from which it is recirculated by a pump (15) to the troughs (11). Make-up water enters the sump via a float valve (18), and a fan (20) pumps air through the chamber 10 to atmosphere after passing the heat-exchanger, troughs and mist eliminators (22). Water from the pump (15) is fed centrally into chamber 23 from which it passes by a number of spaced holes 28 into a surrounding reservoir 25 that is open to each trough via openings 29; a stable water level obtains in the reservoir. The water spilling from the notches adheres to the exterior of the trough and the shape of the bottom surface thereof determines the direction in which the droplets fall from the lowermost point of each trough; the two notches in each trough each producing separate and opposed streams of droplets. In a modification, as applied to a cooling tower the heat exchanger tubes are replaced by corrugated plates and the water to be cooled is fed into the troughs.
Patent GB-502131-A (GB)
Title: Improvements in or relating to lifting magnets
IPC: H01F7/20
Filed: 1938-01-17
Abstract: 502,131. Electromagnets. ROVIG, S. Jan. 17, 1938, No. 1495. Convention date, Jan. 23, 1937. [Class 35]. A lifting magnet with a circular lifting surface has a number of cores along its circumference magnetized by direct current to form north and south poles alternately. In the form shown, the magnet has twelve poles 1-12 each surrounded by a winding 13. If desired the magnet may have central and annular polepieces which in turn are surrounded by the series of poles near the periphery.
Patent GB-163257-A (GB)
Title: Improvements in or relating to a device for muffling the noise and for lowering the temperature of the exhaust gases of internal combustion engines
IPC: F01N1/18
Filed: 1921-01-10
Abstract: 163,257. Birger, I. June 29, 1920, [Convention date]. Addition to 157,235. Exhaust-silencers.-A silencer as described in the parent Specification is adapted for aeroplane or motor vehicle engines, for example, by making the stationary and rotating members of streamline form. In one form, Fig. 1, the gases are led by a pipe 3, having a cut-out valve 4, to a non- rotating casing 1 with external ribs 15. A tortuous path is formed by a funnel 5 and a tube 6, the latter carrying a cover 7 for the casing 1. From the tube 6 the gases pass into rotating casing 2, in which a tortuous path is formed by a tube 12 fixed to the casing 2 and a tube 9 on the cover 7. Stiffening-blades 13 assist to throw the gases against the surface of the casing 2, which is rotated by the air current impinging on external helical blades 14. The gases escape through the annular space 16 between the casings. In a modification, Fig. 3, the gases enter the part 1 through a pipe 17 and follow the path indicated by arrows. A cut-out and relief valve 21 is provided, and the part 2 is rotated from the engine shaft or by means of an air-screw on the shaft 10. In order to make a cylindrical silencer ovoid in form, as shown in Fig. 6, a preliminary expansion chamber 31 may be added. In a form suitable for motor-cycles, Fig. 7, the rotating part 35 is mounted directly upon the engine shaft 34 and may serve as a fly-wheel if made heavy. The gases enter the stationary part 40 by a pipe 42.
Patent GB-632043-A (GB)
Title: Improvements in or relating to apparatus for the processing of photographic films
IPC: G03D13/00
Filed: 1948-01-19
Abstract: 632,043. Photographic processing apparatus. DOLBY, G. J. R. Jan. 19, 1948, No. 1551. [Class 98 (ii)] A film processing tank has a number of electric switches 5 which are closed by filmbearing frames 14 when these are inserted in the tank, so that after an interval determined by a time switch 9 of known kind, visual and aural indicators, which may comprise a safe light 6 by each frame and a signal light 7 and a bell or buzzer 8, are actuated to warn the operator.
Patent GB-367127-A (GB)
Title: Improvements in and relating to tide water power plants
IPC: F03B13/26
Filed: 1931-01-19
Abstract: 367,127. Utilizing tidal energy. McHENRY, S. B., General Delivery, Bloomsburg, Pennsylvania, U.S.A. Jan. 19, 1931, No. 1731. [Class 69 (i).] A plant for the utilization of tidal energy comprises a pontoon 3, Figs. 2 and 3, having cylinders 4 adapted to work over pistons 8 which are normally stationary, and to deliver water to hydraulic motors 15 for driving shafts 32. The pipe system between the cylinders and motors has valves 24, 27 linked together by a rod 30 and operated by a lever 31. Brake bands 52 normally hold drums 51 connected by gearing to the piston-rods 7, but are released by flexible means 61 when required to render the plant inoperative. The shafts 32 may have governors 33 controlling friction clutches.
Patent GB-641685-A (GB)
Title: Improvements in or relating to method of and apparatus for forming nut blanks
IPC: B21K1/64
Filed: 1948-01-21
Abstract: 641,685. Forging nuts; dies. WATERBURY FARREL FOUNDRY & MACHINE CO. Jan. 21, 1948, No. 1826. Convention date, July 31, 1947. [Class 83 (iv)] A method of making a nut blank with a flat face surrounding the opening through the blank, includes the steps of cutting a blank from solid stock, cupping the face at one end and then applying pressure to the blank to form an annular recess in the cupped face adjacent the outer portion of the face. The machine for carrying out the invention comprises a number of dies in a block 10 co-operating with a movable gate 13 carrying a number of co-operating dies. At the first station a blank is sheared from the stock 15 and fed by the cutter 16 to a position in front of a die 19 at station 2. As the gate advances the blank is pushed into the die 19 by a pin 33 projecting through a punch 27 and as the punch advances the blank is pressed between the die 19 and a die 29 carried by the punch so as to form the shape shown in Fig. 7. The depression 37 on the upper face is formed by the end of the knock-out pin 23 which constitutes the bottom of the opening of the die 19. The blank is transferred to the third station by known transfer means and is there pressed between dies 41 and 47 and pins 43 and 49 to the shape shown in Fig. 8, having flat sides joined by rounded corners, a lower face with two annular portions of different taper and an upper face with an annular depression 57 surrounding a flat central portion 58. At the fourth station the blank is upset between a die 66, 67 and a punch 73 so as to form a polygonal cross-section with sharp corners, an upper depression made by a pin 69 and a lower deeper indentation made by the shaped upper end of the punch 73. At the last station the blank is seated in a die 84 and a hole is punched through it by a punch 82 from which the work is removed by a stripper 87.
Patent GB-699465-A (GB)
Title: Improvements in and relating to goggles or eye shields
IPC: A61F9/02
Filed: 1951-01-24
Abstract: 699,465. Goggles. KUSTOW, L. Jan. 24, 1951, No. 1859/51. Class 97 (i). In goggles comprising a transparent window held in front of the eyes and across the bridge of the nose by a frame contoured to fit the upper part of the face of the wearer, the window, or the frame or both window and frame are provided with a flange against which the other member is held by releasable inter-engaging means. As shown, the window a has a rearwardly directed flange a<SP>2</SP> into which the front portion of the frame b is pressed and held by its own resilience, projections b<SP>3</SP> on the frame engaging slots a<SP>3</SP> on the flange to hold the members together. The window has a re-entrant portion in its lower edge to accommodate the nose which portion may be surrounded by soft plastic beading. Alternatively an inwardly directed flange may be provided on the front portion of the frame having lugs' or slots engaging complementary formations on the window.
Patent GB-943280-A (GB)
Title: Improvements in and relating to compositions comprising thermoplastic synthetic resins and partial ester lubricants therefor
Inventor: SQUIRES STUART
IPC: C08K5/103
Filed: 1961-01-17
Abstract: Trimethylolpropane distearate is prepared by esterifying trimethylolpropane with stearic acid in the presence of phosphoric acid as a catalyst. The solid ester (MP 36-39) may be powdered and used as a lubricant in polyvinyl chloride or other thermoplastic resin compositions.ALSO:A lubricant for thermoplastic resin compositions comprises a partial ester derived from (1) a polyhydric alcohol with more than 3 carbon atoms and at least three primary hydroxyl groups in the molecule and (2) a monocarboxylic acid derived from an animal or vegetable oil, fat or vegetable wax and with more than 7 carbon atoms in the molecule, said partial ester containing one free hydroxyl group in the molecule.  Polystyrene, styrene-acrylonitrile and styrene-butadiene copolymers, polymethyl methacrylate, polyethylene and polypropylene and in particular polyvinyl chloride are specified and esters derived from pentaerythritol or preferably trimethylol propane with lauric, palmitic, oleic, ricinoleic and preferably stearic acids are mentioned.  An example describes the use of trimethylol propane distearate as a lubricant in polyvinyl chloride compositions.
Patent GB-691018-A (GB)
Title: Improvements relating to the shearing or cropping of fabrics
Inventor: ELLIMAN JOHN ACWORTH
IPC: D06C13/08
Filed: 1951-01-25
Abstract: 691,018. Feeding webs. SPENCER, Ltd., G. Oct. 31, 1951 [Jan. 25, 1951], No. 1928/51. Class 100(i) [Also in Group VIII] Tubular fabric is drawn through shearing mechanism (see Group VIII) by feed rollers 41, 42 and is tensioned by passing between tensioning rollers 15, 17 on the ends of which a frictional braking effect is exerted by straps 44 each carrying an adjustable weight 45. For threading fabric through the mechanism, rollers 15, 17 can be separated by moving bell cranks 12,21 to the chaindotted positions, bell crank 21 being retainable in the displaced position by means of a catch 29.
Patent GB-763794-A (GB)
Title: Improvements relating to a combined body and frame for motor vehicles
IPC: B62D21/12
Filed: 1955-01-21
Abstract: 763,794. Vehicle bodies. DAIMLER-BENZ AKT.-GES. Jan. 21, 1955 [Jan. 21, 1954], No. 1929/55. Class 108(1). A combined body and chassis comprises longitudinals 1 preferably of box-section disposed outside the track of the vehicle connected by front and rear double walls 6, 7 whose surfaces may be plane or spherically curved. The double walls may have integral extensions forming an instrument panel and floor portions and may be used for housing heating and/or ventilation units.
Patent GB-672042-A (GB)
Title: Improvements in or relating to anodes for cathodic protection of metal structures
Inventor: SIMCOX HORACE JAMES
IPC: C23F13/02
Filed: 1950-01-27
Abstract: 672,042. Anodes for preventing corrosion. MAGNESIUM ELEKTRON, Ltd. Jan 23, 1951 [Jan. 27, 1950], No. 2195/50. Class 123(i) In an anode for the cathodic protection of underground pipes &c. comprising a magnesium &c. element 10 surrounded by a backfill 17 of, e.g. a mixture of gypsum and bentonite enclosed within a fabric bag 16, the element 10 is prevented form riding up above the level of the backfill by a cardboard disc 18 which is apertured to provide for passage of a cable 13, connected to an iron rod 11 within said element, and is held down on top of the element, or a bitumen &c. filling 12a, by tapes 19 secured to the inside of the bag 16; one or more cardboard &c. rings 21 fitting the element and bag are also spaced along the element. The top of the bag is drawn tightly over the disc 18 and closed by a wire ring &c. 20.
Patent GB-606995-A (GB)
Title: Improvements in or relating to electrically driven vehicles
IPC: B60K1/00
Filed: 1946-01-23
Abstract: 606,995. Electric motor-wheels. MORRISON (ENGINEERS), Ltd., A. C., and MORRISON, A. C. Jan. 23, 1946, No. 2203. [Classes 79 (ii), 79 (iii) and 79 (v)] A steerable wheel-carrier for an electricallydriven vehicle is constituted by a casing 1, which is furnished with bearings for an axle 7 carrying a wheel hub at one or both sides of the casing, and is formed to provide a cradle for an electric motor 4 disposed with its axis parallel to the wheel axle, drive-transmitting means between the motor and axle, including a chain-drive, being housed in the casing. The single wheel, or, each wheel in the case of a twin-wheel assembly, is entirely exposed on the outside of the wheel carrier so as to enable the wheel to be readily removed. The casing 1 is of two-part hollow form comprising parallel side walls closed at the top and bottom. The bearings for the axle 7 are mounted on the side walls, and each of the wheel-hubs is of flanged form to receive a wheel. The drive between the motor and axle comprises a pinion 23 on the motor shaft, a helical gear 22 on a countershaft 19, and one or more chains 21 passing over sprockets 13, 20 on the shaft 7 and shaft 19, respectively; the countershaft 19 is located in a lateral extension of the casing. A steering-pin 29, which is arranged to turn in bearings 31, 32 in a flanged steering bracket 33 on the vehicle frame, is engaged by a split lug 28 provided on the casing 1. The pin 29 is disposed vertically over the axes of, and centrally between, the twin wheels, and is screwed at its lower end into a flanged washer 30 in the casing 1. The vehicle may be steered either by means of the usual steering- wheel, or an arm which is attached either to the back wall or top of the casing and controlled by a person walking behind the vehicle.
Patent GB-684372-A (GB)
Title: Process for the preparation of dihydrolysergic acids
Filed: 1951-01-29
Abstract: DL-Dihydrolysergic acid and DL-dihydroisolysergic acid (I) are prepared by thermal treatment of the methyl esters of the corresponding nor-acids, if desired in the presence of an inert solvent.  Examples are given of the preparation of the two acids, the crude iso-acid being esterified with methanol and the ester purified by chromatography.  The methyl ester of DL-dihydrolysergic acid is also described.
Patent GB-938280-A (GB)
Title: Improvements in magnetic suspension arrangements
IPC: G01R11/36
Filed: 1961-01-19
Abstract: 938,280. Bearings. WESTINGHOUSE ELECTRIC CORPORATION. Jan. 19, 1961 [Feb. 26, 1960], No. 2218/61. Class 12 (1). [Also in Group XXXVI] An arrangement for mounting a rotor unit of an induction watthour meter for rotation relatively to a stator unit about a vertical axis in which permanent magnets support the rotor unit. The magnets 53, 55, Fig. 2, having like poles adjacent each other to cause a repulsion force, are fixed by solder 59, 63 into cups 57, 61, the cups being held by a sleeve 51 and a shaft 15, respectively. The shaft 15, having a ring 47 mounted in the end thereof, is located concentrically by a pin 49 secured to the sleeve 51. Similarly the upper end of the shaft 15 is located by a ring 39 and a pin 41. The shaft 15 passes through and is connected to a disc 13 which serves to effect rotary movement in conjunction with current poles 11A, 11B, Fig. 1, and is damped by magnets 27, 29.
Patent GB-1526102-A (GB)
Title: Crop harvesting machines
IPC: A01D75/00
Filed: 1976-01-21
Abstract: 1526102 Towing implements SPERRY RAND CORP 21 Jan 1976 [24 Jan 1975] 02258/76 Heading A1P A main frame 16 supporting an elongated crop harvesting header 24 is mounted pivotally on a mobile frame 18 about an upright shaft 114 such that the mobile frame may be rotated by a hydraulic cylinder 118 from a field operating position (Fig. 3), in which the harvesting machine 10 is towed with its header 24 transverse to the direction of tractor movement, to a road transport position (Fig. 6), in which the header is parallel to the movement direction. A draft member 14 is pivoted on the main frame 16 about an upright post 68, by a hydraulic cylinder 82 acting on linkages 84, 90, 96 between operative positions, in which the machine 10 is either to the left or right or behind the towing tractor, and the transport position. The mobile frame 18 comprises a structure 106 having wheels 102 rotatably mounted on arms 130 and a structure 104 providing the pivot mounting for the main frame and including a tubular member 108 which is rotatable on the cylindrical member 128 of the structure 106. The structures 104, 106 are rotated relatively by a hydraulic cylinder 134 connected therebetween such that the header, main and mobile frames are raised relative to the wheels 102 (Fig. 7) to enable the wheels to pass beneath the header where the mobile frame is rotated into the transport position. The header is mounted floatingly on the main frame 12 as described and claimed in Specification 1526101.