baber/WOPTO huggingface dataset:
Patent GB-1171295-A (GB)
Title: Improvements in Diecasting
Inventor: REYNOLDS JEFFREY ALAN
IPC: B22D18/04
Filed: 1965-11-25
Abstract: 1,171,295. Die-casting. ASSOCIATED ENG. Ltd. 23 Nov., 1966 [25 Nov., 1965], No. 50227/65. Heading B3F. In a method of low pressure die-casting molten metal 2 is transferred from a crucible 1 into a die 33 by using a pressure vessel 3 partly submerged in the molten metal 2 and having a valve 20, 21 in its bottom to allow equalization of the level of the molten metal inside and outside of the vessel 3 and a means for creating a higher pressure in the vessel above the molten metal relative to the pressure within the die so that molten metal is passed via a heated transfer tube 28 into the die 33. The relatively higher pressure may be brought about by increasing the pressure in the vessel 3, or by a combination of pressure values applied to the pressure vessels and dies. One vessel 3 may supply one or more dies and a plurality of vessels 3 may be used to supply a plurality of dies that may require different casting time cycles, feeding techniques and casting pressures. Pressurizing medium for the vessel 3 may be compressed air or an inert gas, e.g. nitrogen, argon or carbon dioxide. The pressure may initially be such as to slowly feed the die without turbulence and then is increased, and a nozzle 29 at the end of the transfer tube 28 is designed to give optimum flow and cooling characteristics. The valve 20, 21, which may be water-cooled, is operated by a rod 22 by mechanical, pneumatic, hydraulic, electrical or gravity means. The die is formed in two parts that are closed together by jacks 34 and clamped by jacks 35 in sequence. A control sequence (Fig. 4, not shown) is described and includes pilot switches, timers &c. for controlling a casting operation including the insertion and removal of cores in the die. Ceramic coating or linings may be used in the apparatus and the vessel 3 may be made of ceramic with an integral transfer tube 28. The materials cast may be aluminium and magnesium based alloys.
Patent GB-1483384-A (GB)
Title: Roof structure
IPC: E04B7/22
Filed: 1974-11-20
Abstract: 1483384 Insulating roof cladding THERMODACH DACHTECHNIK GmbH 20 Nov 1974 50392/74 Heading E1W A roof structure comprises heat insulating slabs 2, 3 of e.g. foamed plastics formed with a rebate on one face to accommodate a roofing batten 1 so that the slab overlies the batten and extends at least partly between adjacent roof battens. Grooves 10 or projections 14 may be formed in the upper face of the slab to support slate or asbestos cement tiles (not shown). Drainage channels 13 may be provided. Lateral edges of the slabs may be provided with interengaging formations, Fig. 6 (not shown). Reinforcing wires may be incorporated in the edges 8 or metal or plastics plates provided to strengthen the edge 18. The slabs may rest in plastics trays (4) Fig. 1 (not shown) which are supported between the battens.
Patent GB-1431600-A (GB)
Title: Method of blasting and a detenator firing device therefor
IPC: F42B3/12
Filed: 1973-10-31
Abstract: 1431600 Blasting IMPERIAL CHEMICAL INDUSTRIES Ltd 7 Oct 1974 [31 Oct 1973] 50605/73 Heading E1F [Also in Division F3] A device for sympathetically detonating blasting charges comprises an electrical detonator in circuit with an energy source which is contained within a housing having a wall that is deformable to actuate the energy source in response to an increase of external pressure due to the detonation of a nearby blasting charge. An embodiment of the device for detonating slurried explosives in a series of boreholes in submerged bedrock, comprises a housing 10 and a piezo-electric 'element 26 that is compressed by the end 36 of a bellows 15 when the interior of the bellows is subjected, through ports 17, to an increase of pressure on detonation of the adjacent slurried explosive. The end 36 of the bellows is normally spaced from the piezoelectric element for safety purposes, but, upon immersion of the device, is brought adjacent thereto by hydrostatic pressure. The bellows is filled with liquid 16, gelled liquid or the slurried explosive. In another embodiment (not shown) the energy source is an electrical cell and a switch therefor is closable by a diaphragm. The slurried explosive in the first of the series of boreholes is detonated from a remote source but subsequent detonations are effected sympathetically.
Patent GB-1485170-A (GB)
Title: Apparatus for the therapeutic treatment and active massage of muscles
IPC: A61N1/32
Filed: 1974-11-22
Abstract: 1485170 Electrical treatment of muscles O A M WYSS and A MONTI 22 Nov 1974 [26 Nov 1973] 50702/74 Heading A5R An apparatus for therapeutic treatment and massage of muscles comprises a power supply A, a generator, HF, of a sinusoidal or quasisinusoidal alternating carrier current of frequency between 3KHz and 100KHz, to avoid the production of painful muscle contractions an adjustable generator, BF, of an alternating modulating current at a frequency of less than 1Hz e.g. 1/5-1/10 Hz, a modulator M which amplitude modulates the carrier current by the modulating current and electrodes 4, 5, 6 for applying the modulated current to the muscles to be treated the electrodes being adapted to be placed on the surface of and in contact with the skin surrounding the muscles current flowing transversely through the muscles. A phase shifter D splits the monophase output of the modulator into a triphase modulated current, the phases 1, 2, 3 being amplified at A 1 , A 2 , A 3  and connected to respective electrodes 4, 5, 6 equiangularly spaced around a limb 7 with a bone 8 and muscular part 9. Alternatively a bi-phase current may supply four electrodes spaced 90‹ apart, or a monophase current may be used. The degree of modulation is adjustable. The modulating current is preferably also sinusoidal or quasisinusoidal. The muscles in any part of the body may be treated.
Patent GB-510090-A (GB)
Abstract: 510,090. Photographic emulsions. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.). Jan. 26, 1938, No. 2511. [Class 98 (ii)] An emulsion layer is given a matt surface by including a cellulose derivative in finely dispersed form. The degree of fineness is varied by the choice of solvent or using mixtures of solvents. In one example 100 grains of ethyl cellulose are dissolved in 200 c.c. ethyl alcohol and 200 c.c. toluene, 500 c.c. water are gradually run in, giving a dispersion which is added to a molten gelatine silver halide emulsion. Acetyl cellulose in cyclohexanone, dimethyl phthalate or methylene chloride, and benzyl cellulose in toluene or benzene with ethyl alcohol, are also given as examples.
Patent GB-1533567-A (GB)
Title: Cladding panels
IPC: E04F13/18
Filed: 1975-12-15
Abstract: 1533567 Cladding panels WAVIN BV 15 Dec 1975 51358/75 Headings E1B and E1W Overlapping panels are interengaged by complementary hook members at opposite edges, and are prevented from disengaging by sliding movement in a direction transverse to said edges by a projection 6 adjacent one hook member and a projection 7 on the complementary hook member 3. The panels are preferably of unplasticized P.V.C. and are corrugated to simulate two plank. Clip 10 secure edges 8 to walls or frameworks and edging and corner covers are provided.
Patent GB-1108724-A (GB)
Title: Improvements in magnetic memory devices
Inventor: GERRARD CHARLES P
IPC: G11C7/02
Filed: 1966-11-17
Abstract: 1,108,724. Matrix stores. BURROUGHS CORPORATION. 17 Nov., 1966 [6 Dec., 1965], No. 51469/66. Heading G4C. [Also in Division H3] In a magnetic memory matrix in which a memory plane 10 is divided up into a plurality of sections I, II, III, IV, each with its own sense winding 26, 28, 30, 32, each sense winding is connected through a switch 36, 38, 40, 42 to amplifier 34 so that during read-out only one sense winding is coupled to the amplifier. The switches 36, 38, 40, 42 are normally arranged to be open and closure of one of the switches is accomplished by select circuit 44 which decodes information in the address register 12 and energizes one of four output lines depending on which sense winding is identified by the address in register 12. Each of these output lines is connected together with the output line of the read pulse source 20 to the inputs of logical " and " gates 46, 48, 50, 52 so that a read pulse is applied to one of the switches for momentarily closing the switch to connect the associated sense line to the input of amplifier. A dummy input load 54 is normally coupled through switch 56 to amplifier 34 and read pulse source 20 is connected to the switch 56 through inverter 58 so that switch 56 is normally closed except when the sense lines are connected to the amplifier. The switches are in the form shown in Fig. 2 and each includes a pair of field effect transistors 60, 62. The source electrodes of the transistors are connected to input terminals 68 70 across which a sense winding is connected and the drain electrodes are connected to the input terminals of differential amplifier 34. In operation a positive control signal is applied to a control terminal 64 connected to the two gate electrodes of one of the pairs of transistors to place them in a low resistance state and connect the sense winding to the amplifier.
Patent GB-1375275-A (GB)
IPC: B41J1/46
Filed: 1972-11-09
Abstract: 1375275 Selective printing SUWA SEIKOSHA KK 9 Nov 1972 [15 Nov 1971] 51794/72 Heading B6F A plurality of electromagnetically operated, spring-returned hammers 15 impact a web 12 selectively against an inbed type drum 3, which is intermittently rotated with an electromagnetically operated ratchet and pawl mechanism. Every complete revaluation of the type drum is accompanied by an advance of the web by one line under the control of a cam operated ratchet and pawl mechanism driving feed rollers 10 cooperately with rollers (9, Fig. 1). Inking roller 14 inks the type drum.
Patent GB-1493364-A (GB)
Title: Manufacture of synthetic crude oil
IPC: C10G1/06
Filed: 1974-12-02
Abstract: 1493364 Oil from coal LUMMUS CO 2 Dec 1974 [12 Dec 1973] 52142/74 Heading C5E Synthetic crude oil is produced by contacting coal with a coal liquefaction solvent and hydrogen, separating insoluble material by gravity settling after the addition of a promoter liquid and catalytically hydrogenating at least a portion of the liquefied coal to produce an oil having a hydrogen to carbon atomic ratio between 1 2 and 1À8. The liquefaction is carried out at 650-900 F. and 500-4000 p.s.i.g. with a hydrogen consumption of 4000-12,000 SCF/ton MAF coal, either non- catalytically or in the presence of a catalyst such as cobalt molybdate, nickel molybdate, tungsten nickel sulphide or tungsten sulphide on alumina or silica-alumina. The promoter liquid has a 5 volume per cent distillation temperature of at least 250 F., a 95 volume per cent distillation temperature of at least 350 F. and no greater than 750 F. and a characterization factor (k) which is at least 9À75 and greater than that of the liquefaction solvent; the promoter liquid can be added in amounts of 0À2 to 3 parts by weight per part of coal solution. The hydrogenation of the liquefied coal is carried out catalytically at 500-900 F. and 500-5000 p.s.i.g. with a hydrogen consumption of from 7500-20,000 SCF/ton MAF coal, e.g. using a catalyst of cobalt molybdate, nickel molybdate or nickel tungsten sulphide on alumina or silicaalumina.  Coal is liquefied at 14 using a weight ratio of solvent 12 to coal between 1 and 20; components 41 boiling up to 600 F. are removed at 16 and separated into a naphtha product 43 and a 300-600 F. fraction 53. A promoter liquid 21, such as a kerosene fraction having 5 and 95 volume per cent boiling points within the range 425-500 F. is mixed with the 600 F. + material 17 which is passed into the gravity settling zone 23. The solidsfree overflow 24 is separated from the underflow 31 and distilled at 25 to recover the promoter liquid 21, a 600-900 F. fraction of which a portion is used as the liquefaction solvent 12 and a 900 F.+fraction 51. The fractions 51, 53 and a 600-900 F. fraction 52 are hydrogenated at 55 to provide the synthetic crude oil product 57.
Patent GB-1127839-A (GB)
Title: Improvements in ion exchange processes
Inventor: POPPER KAREL
IPC: B01D15/04
Filed: 1966-11-22
Abstract: 1,127,839. Ion-exchange. K. POPPER and V. SLAMECKA. 22 Nov., 1966, No. 52191/66. Heading B1J. A mixed bed of ion-exchangers in column 1 is charged with cations and amions which together form calcium or magnesium hydroxides, carbonates, sulphates or bicarbonates. A polar solution to be treated is introduced through inlet 3 and discharged through exit 4 but with a portion of pure water flowing to regeneration chamber 8. The displaced ions form a sparingly soluble salt which is retained within the confines of the bed. Vacuum is applied through valve 6 and air is drawn in through valve 12; valve 15 is opened and resin falls into chamber 1. Valves 6 and 15 are closed and valve 14 opened when resin moves from column I to slant leg 9 while that in leg 9 falls into 8. The operation is resumed until the entire column is exhausted and then regeneration is begun by introducing water into inlet 3. This redissolves the alkaline earth metal salt and recharges the resin.
Patent GB-528427-A (GB)
Abstract: 528,427. Feeding webs; post-marking machines. PITNEY-BOWES POSTAGE METER CO. May 6, 1939, No. 13615. Convention date, May 13, 1938. [Classes 100 (i) and 100 (ii)]  A tape printing device which is adapted to print and advance a strip of tape during printing and a cutting device which is adapted to cut the printed portion of the tape after each printing operation have in combination a rotatable taperetracting member 55, Fig. 1, having a frictional tape-engaging surface of a circumferential extension corresponding to an arc of a sector, a pressure member 46 engageable with the tape at a position opposite the position of engagement of the tape retracting member 55, and means to rotate said tape-retracting member once during each printing cycle of operation in a direction opposed to the normal feed of the tape 40 when printing whereby the leading end of the tape is retracted to a printing position 71 after cutting. When it is desired to print on letters which are fed from the position 65, instead of on tape, the latter is retracted manually so that its leading edge is at a position 70, by means of a shutter member 51. Member 51 is movable through the same path as the tape-retracting member 55 and when it is in the letter-printing position, i.e., when its operating handle 53 is at the left-hand end of the arcuate slot 54 in frame member 25, it shields the tape from contact with the taperetracting member 55 and thus prevents the tape from being fed further backwards. Pressure member 46 is yieldable to the action of member 51 by means of springs 50. Member 51 advances the leading edge of the tape to printing position 71 for further tape printing. The tape-engaging surface of the retracting member 55 is adjusted by means of a portion 57 sliding in a forked portion 56 and secured by a bolt 58 in a slot 59. Shaft 52 is driven by a universal drive, Fig. 2 (not shown), from a clutch shaft 21, Fig. 4, engaged with the driving pulley of the machine by means of a clutch 31. A ratchet wheel 32 is secured to a constantly rotating . gear wheel 28 driven from the driving pulley by gearing 19, 26, 27, 28. Pawls 34 are mounted on a disc 33 and are held out of engagement with ratchet 32 by a cam disc 35 spring-pressed against the ratchet but restrained from turning by a trip lever 36 which is released to operate the taperetracting member 55 at the beginning of a printing cycle by a trip mechanism not described in the Specification. A tape guide member 41 directs the tape from the supply to the printing position.
Patent GB-1200080-A (GB)
Title: Motor vehicle with umbrella receptacle
Inventor: GARGANO PIETRO
IPC: B60R7/12
Filed: 1967-11-21
Abstract: 1,200,080. Umbrella receptacles for motor vehicles. P. GARGANO. 21 Nov., 1967 [3 Jan., 1967], No. 52902/67. Heading B7J. A motor vehicle comprises an umbrella receptacle A secured within the luggage compartment and communicating with the outside via a pivoted shutter 2, the receptacle A comprising an inclined bottom 6 and a drainage conduit. 8, 9 extending to an opening in the bottom of the luggage compartment, and umbrella supports 3, 4.
Patent GB-1287132-A (GB)
Title: Apparatus and method for improving the velocity response of mti radar by sinusoidally varying the interpulse period
IPC: G01S13/528
Filed: 1969-10-30
Abstract: 1287132 Doppler radar WESTINGHOUSE ELECTRIC CORP 30 Oct 1969 [1 Nov 1968] 53208/69 Heading H4D An MTI radar has means for comparing the time elapsed since a preceding pulse with the desired time separation until the next pulse in order to provide the next pulse and means connected to the comparing means producing a sinusoidal variation in the time separation. A free running clock 14 drives a binary counter 16, the digits of which are fed in parallel to a comparator 80 where they are compared to the digits of an address word in the buffer PRF store 60. This address word is one of a series of 16 equispaced samples of a sine wave of average value 10,000. When the comparator 80 detects that the inputs from store 60 and counter 16 are identical, the trigger pulse is generated. This resets the counter to zero and after a delay 101 causes the address and store generator 20 to read the next address word sample into the buffer store 60. The address store generator 20 is a nine stage up-down shift register clocked by the trigger pulses (Fig. 4, not shown). The nine outputs each represent one address word sample (since the register is up-down this represents 16 samples in one cycle). The PRF selection gating 40 consists of eleven OR gates, one for each digit in the address word sample (Fig. 5, not shown). Each output from the generator is connected to an input of each gate where a " 1 "is present in the relevant address word sample. The output from each OR gate is connected to the ON trigger of one of eleven bi-stables (MVTI-11, Fig. 5) forming the buffer store 40. The output from each bi-stable feeds an exclusive-OR gating arrangement, the second input to which is the output from one digit of an 11-bit counter 16. The eleven exclusive-OR networks are arranged in series so that when each digit in the counter agrees with the corresponding digit in the address word, a trigger pulse appears at the output of the last network. This trigger pulse resets all the bi-stables (MVT1-MVT11) and the counter (16) to zero and after a delay (101) is feed back to the shift register (20) to advance it one place and read the next address word into the buffer store.
Patent GB-1271128-A (GB)
Title: Method and apparatus for sorting semi-conductor devices
Inventor: WIESLER MORDECHAI
IPC: H01L21/00
Filed: 1969-11-01
Abstract: 1,271,128. Sorting semi-conductor dies. TELEDYNE Inc. 1 Nov., 1969, No. 53659/69. Heading B2H. [Also in Divisions B5, B8 and H1] A method of sorting semi-conductor dies from a monolithic wafer comprises scoring the surface of the wafer 10, Fig. 1, along lines 12, 14 dividing the dies 16, mounting the wafer on a flexible adhesive tape 18, Fig. 3, applying the tape and wafer to a resilient surface 22 with the wafer between the tape and surface, applying a moving line of pressure 24 against the tape parallel to the score lines to break the wafer into an array of separated dies, separating the tape with the array of dies from the surface, and removing individual dies from the tape and placing them in pre-determined groups. The wafer is initially formed with a plurality of microscopic circuits or components which may be of 5 to 10 different types and the score lines 12, 14 divide the circuits one from another. After scoring, the wafer is mounted on the adhesive tape with the score lines facing outwardly and then placed on a smooth release surface 20 covering a resilient backing member 22. A tool 24 is rubbed over the non-adhesive surface of the tape to cause the wafer to fracture along the score lines. The tape is then peeled from the surface 20 with the separated dies adhering to the tape. Before breaking, each circuit on the wafer is examined and its electrical characteristic recorded on a tape 28 which is fitted into a tape reader control 26. Sorting. The adhesive tape 18 carrying the separated dies 16 is mounted on a rest 38, Figs. 4 and 5, having a rear portion 50 of small radius and has its ends secured to clamps 52 on the front and rear surfaces of the rest, the rear clamp being carried by a slide (58, Fig. 6, not shown) acted on by a spring (60) to tension the tape, and the front clamp being connected by adjusting screws 54, 56 to a slide 58 movable by a micro-adjustment screw 44 and a Y-axis drive motor 48. The rest is adjustable in an X direction by a microadjustment screw 42 and an X-axis drive motor 46. The rest 38 is mounted on a pantograph 40 for positioning on a base 32 which has an upright 34 carrying a microscope 36 for visual inspection of the dies. Each die can be removed from the adhesive tape by an electromechanical tweezer 62 having jaws 61 on a split ring 64 actuated by a coil 66, the tweezer being actuated to embrace, grip and lift a die from the tape. The tweezer is carried by a slide 68 which is retracted under the control of the tape reader 26 to deposit the die on a selected one of a series of carrier belts 72 extending between feed spools 74 and take-up spools 76 driven by a motor 80. Packaging. Each belt 72, Fig. 7, is formed with shallow pockets 80 for receiving the dies deposited by the tweezers 62 and is indexed upon receiving a die. As the belt is indexed, an overlay of pressure sensitive adhesive tape 78 is pressed against the upper surface of the belt to seal the semi-conductor dies in the pockets.
Patent GB-1182957-A (GB)
Title: Improvements in Linear Induction Motors.
Inventor: LAITHWAITE ERIC ROBERTS
IPC: H02K41/025
Filed: 1967-11-25
Abstract: 1,182,957. Linear motors. ROTAX Ltd. 24 Jan., 1969 [25 Nov., 1967], No. 53712/67. Heading H2A. In a linear induction motor comprising a housing 10 within which is located a series of axially-spaced coils 11, Fig. 1 (not shown), separated by individual stator laminations, the latter are non-continuous in the circumferential direction to prevent the flow of eddy current. Each lamination may comprise two semicircular portions 17, 16 separated by an air gap 18 and mounted within the housing by interengaging lugs 19 and grooves 20. Alternatively, each lamination may have a slot extending from a central aperture, through which the movable member of the motor extends, to its outer periphery. The laminations may be of circular, square or rectangular shape.
Patent GB-1214497-A (GB)
Title: Vibration damping laminated systems
IPC: C09J131/04
Filed: 1967-11-27
Abstract: 1,214,497. Vibration damping laminates. FARBWERKE HOECHST A.G. 27 Nov., 1967 [25 Nov., 1966], No. 53826/67. Heading B5N. [Also in Division C3] A vibration damping laminated system comprises two plates, e.g. of steel, bonded by an interlayer comprising a copolymer containing from 30 to 40 parts by weight of units derived from vinyl acetate, from 30 to 40 parts by weight of units derived from n-butyl acrylate, from 10 to 30 parts by weight of units derived from di-n-butyl maleate and from 5 to 15 parts by weight of units derived from crotonic acid, the total number of parts by weight of the various units being 100. The copolymer may be partially cross-linked, e.g. with agents such as epoxides or isocyanates, and may contain a minor amount of a filler, e.g. heavy spar, silicic acid, graphite and/or soot. The copolymer, in the molten state, can be applied to the plates by trowelling, brushing or pouring.