baber/WOPTO huggingface dataset:
Patent GB-1064922-A (GB)
Title: Hydrocarbon reforming catalysts
Inventor: REITMEIER RONALD EVERETT
IPC: B01J23/70
Filed: 1966-03-16
Abstract: A catalyst comprises nickel and a hydraulic cement refractory base in the form of hollow cylinders or rings such as Raschig rings 3/8 " in height and 5/8 " in diameter with a 1/4 " hole through the centre, the amount of nickel being 15 to 30 wt. per cent.  Kaolinitic clay may be incorporated in the base.
Patent GB-1468531-A (GB)
Title: Roller bearing assembly
IPC: F16C33/51
Filed: 1974-03-14
Abstract: 1468531 Bearings RKS 14 March 1974 [27 March 1973] 11512/74 Heading F2A A cage for a roller bearing assembly comprises first and second apertured separators 1, 2 alternately interengaged, each separator having a roller housing 3 and two part-spherical surfaces 9-12 symmetrical about a plane B containing the bearing axis and the separator housing axis A, the surfaces 9, 10 on the first separators being convex and those 11, 12 on the second separators being concave, the radii of curvature of the surfaces being equal, and the straight line joining the centres of curvature 9a, 10a of the two part-spherical surfaces of each separator of at least said first or said second separators being displaced from the centre C of the housing of said separator both along the axis A and in a direction normal thereto. Each roller is a snap fit in the housing 3 of a respective separator, and is so dimensioned that there is axial and radial play between each roller and its respective separator housing when said roller has been inserted into said respective housing. The separators can thus be used to make up cages for radial and thrust bearings of different diameters. The separators may be of plastics material. In a further embodiment, the separator housings are shaped to receive tapered rollers.
Patent GB-115265-A (GB)
IPC: C23C2/00
Abstract: 115,265. Davies, D., and Jones, D. May 2, 1917. Plates and sheets.-Relates to apparatus for continuously stretching, annealing, cleaning, polishing or burnishing, pickling, washing, and coating metal plates. The stretching or straightening apparatus 1 comprises pairs of rollers 2, 3 between which the plates are passed, the upper rollers being adjustable by screws 2a or hydraulic means, and the rollers 3 being driven at a higher peripheral speed than the rollers 2. The rollers 2 are able to overrun their driving-mechanism so as to permit of their acce eration by the plates drawn through by the rollers 3. For this purpose, there is interposed between two parts of the shaft of the lower rollers 2 a free-wheel clutch which may comprise two worm-wheels 8, Fig. 2, carried on the shaft 6, co-operating with a worm 9 and clutch face 10 on the shaft 7, means being provided to allow relative longitudinal movement between the shafts 6, 7. There may be two sets of stretching-apparatus 1, and the plates may be heated between them. From the stretching-apparatus, the plates pass to an annealing-chamber 13 and cooling-chamber 24 having inlet and delivery rolls 14, 19, 21 provided with shutters 15 to exclude air. The chamber 13 may be heated internally by burners 16 and externally by heat applied in recesses 20, and the chamber 24 may contain lime, soot, or other material. The plates pass on a conveyer 28 to cleaning or burnishing apparatus comprising rolls 31, 32 mounted between stretching-rollers 29, 3) having overrunning means similar to the rollers 2, 3. The pairs of rolls 31, 32 are carried on arms 33, 34 pivoted at 35, the rolls 31 being driven in the same direction as the movement of the plates, and the rolls 32 in the opposite direction. Fcr the passage of each plate, the two pairs of rolls 31, 32 are alternately brought into contact with the plates automatically by means of wedges 37 which are operated by electro-magnetic means controlled from a ball governor in connexion with the stretching-rollers 29. The plates next pass to sand-blasting apparatus 55 through which they are carried by disk rollers 53, the chamber 55 having also inlet and delivery rolls 50, 51 with air-excluding shutters 52. The plates afterwards pass to pickling and washing baths 57, 62 provided with curved guides 61 for the passage of the plates. The plates may finally pass to coating-apparatus 63. A pair of revolving wire brushes may be interposed between the sand-blasting and piclding-apparatus, and a pair of rubber or other rollers after the pickling- apparatus.
Patent GB-887225-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D29/22
Filed: 1958-04-11
Abstract: 887,225. Centrifugal pumps; joint-making packing; stuffing-boxes. GOULDS PUMPS Inc., and PFAUDLER PERMUTIT Inc. April 11, 1958 [April 15, 1957], No. 11601/58. Classes 110 (1), 122 (3) and 122 (5). A centrifugal pump comprises a casing including a part having an inlet, a second part having a single outlet and located between and mating with the inlet part and a cover part, a driving shaft extending through openings in the inlet and outlet parts, a volute formed between the cover part and the outlet part and communicating with the outlet, and an impeller mounted adjacent the end the shaft and discharging directly into the volute, the outlet part opening constituting the inlet to the impeller. The centrifugal pump shown in Fig. 1 comprises a volute 14 bolted between a suction piece 13 and a cover 16. An annular flange 50 on the impeller has a sealing clearance with a wall of the cover 16. Protection against the corrosive liquid being pumped is provided by a glass coating on all internal surfaces of the casing and on the impeller, including a sleeve 62, Figs. 1 and 7. The driving shaft is threaded into the sleeve 62. Preferably, a deformable locking strip 69, in which threads are cut as the impeller is threaded on the shaft, is provided in a slot in the shaft. Fig. 7 shows a stuffing- box comprising packing rings 108 of polytetrafluoroethylene impregnated with mica, water being circulated through a lantern ring 112. Bolts 107 are used for drawing up a housing 106 against a gasket ring 111 and also for drawing up the stuffing gland 109. An alternative shaft seal, shown in Figs. 1 and 8, comprises a carbon sealing ring 88 mounted in a cage 91 secured to the shaft and pressed against a stationary ceramic ring 93 by means of springs 89. A polytetrafluoroethylene ring 87 is wedged against the carbon ring 88 to provide sealing along the glass-coated surface of the shaft, Fig. 8, or of the sleeve 62, Fig. 1. A sealing ring 95 is provided between the ceramic ring 93 and the adjacent glass coating of the casing, pressure being applied by a gland 97 through a gasket 99. The ring 95 comprises an outer envelope of polytetrafluoroethylene closed on the side facing the liquid and containing two rings of asbestos, between which is a ring of a material that is not highly compressible. Gasket rings 52, Fig. 1, and 111, Fig. 7, are of similar form, but ring 111 is not of closed form. Fig. 8 shows an alternative impeller mounting in which the sleeve 62 is omitted, the impeller being secured to the shaft by a key 119 and a glass-coated nut 123, polytetrafluoroethylene gaskets 121, 126 being provided. Specifications 887,224 and 887,226 are referred to.
Patent GB-116190-A (GB)
Title: A New or Improved Appliance for Locating Sunken Ships.
Inventor: RILEY PATRICK
IPC: B63B22/08
Filed: 1917-08-14
Abstract: 116,190. Riley, P. Aug. 14, 1917. Sunken objects, indicating position of.-Means for indicating the position of sunken ships comprises a skeleton metal container A secured to the ship, a drum D revolving in bearings F in the container, a wire rope G secured to, and coiled upon, the drum and fixed to a tapered buoy K, and a swivel J inserted in the rope; the buoy normally rests in the container and floats away when the ship sinks. Guards I prevent the rope coiling round the spindle of the drum. The buoy is formed of sheet metal, or of layers of wood or cork, and has a projecting top L which rests on the top edge of the container.
Patent GB-1026100-A (GB)
Title: Web slitters
IPC: B26D7/18
Filed: 1965-03-19
Abstract: 1,026,100. Slitting webs. BELOIT EASTERN CORPORATION. March 19, 1965 [March 23, 1964], No. 11728/65. Heading B4B. In a slitter comprising a circular knife 10 co-operating with a roller 11 for trimming a strip from the edge of a travelling web W, the strip is guided down a shoot 12 which has jet openings supplied with compressed air through a manifold 25 so that the strip is supported by an air cushion. To assist in holding the web in position, a doctor blade 15 is provided for removing air from the surface of the roller 11. The shoot has a horizontal plate portion the front part of which doctors air from the lower surface of the web. The knife 10 is axially adjustable outwardly of the web.
Patent GB-513754-A (GB)
Title: Improvements in or relating to apparatus for the measurement of electrical reactance
IPC: G01R27/02
Filed: 1938-04-19
Abstract: 513,754. Inductance and capacitance measurements. WAYMOUTH, H., and WAYMOUTH GAUGES & INSTRUMENTS, Ltd. April 19, 1938, No. 11787. [Class 37] Apparatus for measuring a reactance value comprises an oscillation generator connected to a filter circuit having a sloping frequencyamplitude characteristic over the measuring range, a variable reactance in the generator or filter circuit, means for connecting the reactance to be measured in the oscillator or filter circuit, and an indicator in the output circuit of the filter that adjusts the variable reactance to re-establish the frequency relationship. The generator frequency can be at or above the cutoff value of the filter when the measured reactance is in the generator circuit, or the reactance to be measured can vary the cut-off value. The galvanometer control can act upon either the generator or filter circuits. In Fig. 5, the reactance 14 to be measured is connected in the generator circuit, the frequency of which is normally above that of the cut-off value of filter 27...29. During measurement, the filter passes current to valve 31, the instrument coil 55, Fig. 6, being deflected and varying the position of a core 52 in coil 11 that forms part of the oscillatory circuit. This movement restores the frequency relationship between the filter and generator, and the pointer 54, when at rest gives a measure of the reactance 14. The core 52 is of powdered material and can have a variable cross-section to widen the scale graduations at one end. The turns of the coil 11 can be spaced to produce a similar scale effect, or a fixed condenser can be located in series with the coil for the same purpose. Specifications 353,482 and 465,787, [Group XXXVIII], are referred to.
Patent GB-679880-A (GB)
Title: Improvements in filters
IPC: B01D25/26
Filed: 1950-05-12
Abstract: 679,880. Filters. GAJA, P. May 12, 1950 [July 14, 1949], No. 11916/50. Class 46 A filter comprises a plurality of units each including two filtering elements fixed against opposite faces of a non-filtering element which is rigid, bossed and perforated or porous, the units being such that, on stacking, cavities of substantially rectangular or triangular radial section are provided between them for the liquid to be purified. An annular metal disc 1, Fig. 2, is provided with stamped-out bosses 2, on both faces, which leave apertures 3, Fig. 1, for passage of liquid from one side to the other. The bosses are preferably rectangular, are arranged radially and increase in dimensions from the centre to the periphery. Metal rings 4, 4<SP>1</SP> are secured by the engagement of tongues in slots 5, to the inner edge of the disc 1, and two or more layers 6, 6<SP>1</SP>, of felt, buckskin, or like filtering material applied to each face of the disc 1. The edges are secured by stitching or by resilient metal clips or by a ring 7. A number of such units are mounted one upon another and compressed axially on a vertical apertured tube in a casing to which is supplied the liquid to be filtered. Spacing rings of either filtering or non-filtering material are accommodated between adjacent filtering units, but they may be dispensed with by suitably shaping the discs 1. Units of progressively increasing filtering power may be mounted in a single casing. Each filtering unit may comprise two or more filtering elements of different filtering materials having different filtering powers. A peripheral portion of the disc 1 may be left smooth, and the disc diameter may be equal to or less than that of the filtering layers.
Patent GB-835254-A (GB)
Title: Improvements in or relating to ultrasonic coupling apparatus
Inventor: ERDMAN DONALD CALVIN
IPC: G01N29/28
Filed: 1956-04-19
Abstract: 835,254. Ultrasonic wave couplings. ELECTROCIRCUITS Inc. April 19, 1956, No. 11970/56. Class 40 (4). A liquid stream of jet is used to couple a flaw-testing transducer 12 with a test piece 18. The ultrasonic waves reflected or scattered by a flaw return to the transducer against the fluid stream. The liquid is supplied through an inlet 16 and flows across the face of the transducer 12 before it is directed on to the test piece 18 through a nozzle 15 which may be exponential. The liquid is connected by a splash-box 20 and is removed through an outlet 22. One or more exponential horns 24 may be used to concentrate the vibrations on to the test piece. A testing head may include a main jet 39, Figs. 3, 5, with a transducer 39A and a number of supplementary jets 40, 41, 42 with transducers 40A &c. the supplementary jets being used with a servo-mechanism to train the main jet on to the test piece. Different liquids may be used in the different jets.
Patent GB-297299-A (GB)
Title: Improvements in and relating to flushing cisterns
IPC: E03D1/30
Filed: 1928-04-24
Abstract: 297,299. Armstrong, J. April 24, 1928. Valve discharge water-waste preventers. - A flushing cistern has a storage compartment 11 communicating at 14 with a flushing compartment 12, and the float valve 30 is raised by a tappet 28 on a shaft provided with an operating- lever having a weight 26 at one end and a handle 27 at the other. Valve guides 21, and air tubes 18, 33 are provided.
Patent GB-1103110-A (GB)
Title: Electrical apparatus
IPC: G11C21/00
Filed: 1965-03-23
Abstract: 1,103,110. Electronic counters. BECKMAN INSTRUMENTS Inc. 23 March, 1965 [23 March, 1964], No. 12131/65. Heading G4A. A counter comprises a plurality of parallel recirculating electromagnetic delay lines arranged to store three words, each of six characters, spaced apart by one character space, storage and transfer being controlled by major clock pulses in respect of the words, minor clock pulses in respect of the characters, one or other of two leads according to whether 1 or 2 is to be added, and by the information being read out of the delay lines. As described, the accumulator 30 comprises five delay lines weighted 1, 2, 4, 6, 8 to give a parallel biquinary store. An additional line may give the inverse of the 1 line so that pulses are always present on two lines. The apparatus is applied to measuring events per second or measuring time to accomplish a predetermined number of events according to whether switch 20 is in upper or lower position. Assuming the first case and a recirculatory period of 1 microsecond then a 21 megacycle minor clock rate defines three words each of six decimal denominations, controlled respectively by clock pulses MAMC and m 1 -m 6 . Word C is used for time-base and is varied by selector 17 by marking the appropriate lead m 1 -m 6 , m 2  being usually omitted. When the time-base ends, overflow occurs at 47 to read out the count from word A or word B as the case may be into a known visual device 104 and cause the next count to be made into alternative word B or A. In any one microsecond period one or two input pulses may be received so that lead 42 or 43 may be energized. Carry from one delay line to another or from one denomination to the next is accomplished in known manner through gates. The counters may provide for subtraction and may be reversible. More than three words may be provided.
Patent GB-381535-A (GB)
Title: Improvements in internal combustion engines with radially disposed cylinders
IPC: F02B75/22
Filed: 1931-04-24
Abstract: 381,535. Force-feed lubricating. SOC. ANON. MOTEURS A EXPLOSION POUR AVIATION MARINE ET AUTOMOBILES M.E.A.M.A., 26, Avenue Hoche, Paris. April 24, 1931, No. 12157. Convention date, June 12, 1930. [Class 12 (iii).] In a radial-cylinder internal - combustion engine a gear-wheel pump 35 supplies oil through a pipe 37 to a union 40, held on the end of the vertical crank shaft by a spring ; holes in the shaft &c. distribute the oil to the connecting-rods &c.
Patent GB-235692-A (GB)
Title: Improvements in or relating to the steering gear of road vehicle trailers
IPC: B62D13/04
Filed: 1924-05-17
Abstract: 235,692. Newport, H. May 17, 1924. Couplings for tractors.-The wheels of a trailer are steered by a lever E pivoted on a vertical axis e to the trailer axle and connected at its front end by a transverse pivot e<7> to an arm E' detachably connected to the draw-bar AA', as by a shackle. a<0>, in such a manner that a certain amount of free longitudinal movement can take place between the arm and the drawbar. The draw-bar is connected to the trailer by horizontal and vertical pivots a, b respectively, the pivot a being behind the horizontal pivot e' of the steering-gear so that if the drawbar becomes detached from the trailer and falls towards the ground, the front end of the arm E<1> moves relatively to the draw-bar, this movement being utilized to apply the trailer brakes by means of a cable F. This cable is connected at its front end to the shackle a<0> and at its rear end to the brake cables F<5> through an equalizing lever F<6>, Fig. 4, carried by one end of a lever F<6> pivoted at F<4>. The brakes may be independently applied (1) by hand by means of a lever-operated cable F<7> connected to the lever F<3> and operated from the back of the trailer by a screw in the usual manner, or (2) from the tractor by means of a cable F<1> detachably connected to the cable F. If the shackle a<0> is detached from the draw-bar the trailer can be steered by hand while being hauled by the tractor.
Patent GB-421640-A (GB)
Title: Improvements in or relating to tooth brushes
IPC: A46B9/04
Filed: 1933-04-27
Abstract: 421,640. Teeth - cleansing appliances. ROTTER, A., 28 Gwinnerstrasse, Frankfort - on . Main, Germany. April 27, 1933, No. 12233. [Class 19] The cleaning member of a tooth cleaning appliance comprises a block e of sponge rubber provided with or secured to an impervious base, the peripheral faces of the block being surrounded by imper vious material, such as a rubber band g, so that, when the block is compressed, it is freed from air and on subsequent expansion produces a suction effect. The base may be permanently secured to the handle a, or may be adapted to detachably engage in guides b thereon.
Patent GB-935735-A (GB)
Title: Fuel supply systems
IPC: H01R4/48
Filed: 1962-03-30
Abstract: 935,735. Gas turbine plant. GENERAL MOTORS CORPORATION. March 30, 1962 [April 20, 1961], No. 12281/62. Class 110 (3). [Also in Group XXIX] A fuel supply system for gas turbine engines comprises a low pressure fuel source, a valve with two synchronously-variable sets of meter ports, a high pressure pump with an inlet connected to the source through one set of meter ports and an outlet connected both to a delivery line and to the source through the other set of meter ports, and a head regulator means to maintain controlled constant pressure drops across both sets of ports. Fuel from a booster pump 23 is supplied through a pressure head regulating valve 27 to a metering valve 30 where it is metered through ports 47. The metering valve 30 discharges through conduit 31 to the high pressure pump 16 which supplies fuel to the engine manifold. A by-pass line 33 discharges fuel through pressure head regulating valve 35 and further metering ports 52 in the valve 30 to the discharge of the pump 23. The valve 27 maintains the pressure drop across the ports 47, 48 constant and the valve 35 maintains the pressure drop across the ports 52, 53 a fixed ratio to that across the ports 47, 48. The metering valve sleeve 41 moves in response to changes in compressor pressure ratio acting against the spring 88 or may be manually controlled. A manually operated all-speed governor 17 modulates the compressor ratio by controlling bleed valve 93 to maintain the preset speed. The metering ports 47, 52 in valve 30 may be in sets of only one port and not two as illustrated.
Patent GB-1499565-A (GB)
Title: Scanning system for digital analogue converter
IPC: G06F7/68
Filed: 1975-03-25
Abstract: 1499565 Digital-to-analogue conversion TEXAS INSTRUMENTS Inc 25 March 1975 [3 April 1974] 12372/75 Heading H3H To derive a voltage selected by a binary coded digital signal held in a counter 82, a combination of gates and shift register stages is arranged to output at AN a periodic pulse sequence in which each bit in the counter 82 occurs a number of times proportional to its significance, and the pulse sequence is integrated in a filter (18), Fig. 1 (not shown), to derive the selected voltage. In Fig. 3, six four-stage recycling shift registers (only three shown) 70, 72, 74 &c. are advanced at different clock rates C1, C4, C16 &c. where C1 is four times as fast as C4 and so on. The pulse sequence output at AN is of the form I 1 , I 2 , I 1 , I 3 , I 1 , I 2 , I 1 , I 4 , &c. in which bit Ii occurs twice as often as I(i+ 1). In a modification, Fig. 6 (not shown) each recycling shift register (120, 122, &c.) contain one 1 bit and three 0 bits which control AND gates (132-152) to output the bits from the counter (140) in the correct sequence. Both embodiments are suitable for integrated circuits and may be used for controlling tuning of radio or television.
Patent GB-125128-A (GB)
IPC: C06B29/22
Abstract: 125,128. Johnson, F. G. L. June 2, 1916. Explosives.-Consists in incorporating a mixture of potassium and ammonium perchlorates with 17 to 18 per cent of paraffin wax. Specification 14932/15 is referred to.
Patent GB-1489647-A (GB)
Title: Suspended ceiling
IPC: E04B9/04
Filed: 1975-03-25
Abstract: 1489647 Cleaning suspended ceilings P GUTERMUTH and H OETJEN 25 March 1975 [26 March 1974] 12517/75 Heading E1W A suspended ceiling for, e.g. a kitchen, is kept clean by spraying a liquid, e.g. water on to the under faces of arched panels 12 and optionally on. the upper faces also. The panels 12 are supported at their corners in a grid like pattern by members 22 arranged above joining pieces 32 of cruciform, T-, or L-shape, which pieces are attached to suspension devices 21 by, e.g. plugs 25 inserted into bores 23 in the devices. Channels 20, for conveying away the liquid which has run down the panels from nozzles 40, are supported by pieces 32, and have transverse retaining walls to maintain the liquid level (at 56) therein, close to the lower edge of the panels, and thus allowing a liquid film to form intermittently between the panels and the channels, with consequential better cleaning of the lower panel edges.  A ventilating fan is arranged in a ceiling aperture 58, causing undulations in the liquid lying in the channels, to assist the cleaning action.