baber/WOPTO huggingface dataset:
Patent GB-1240288-A (GB)
Title: Egg topping device
Inventor: SMITH ALFRED GEORGE
IPC: A47G19/28
Filed: 1968-10-03
Abstract: 1,240,288. Egg toppers. A. G. SMITH. 3 Oct., 1969 [3 Oct., 1968], No. 46997/68. Heading A4R. An egg topper comprises a flat annular member 7 riveted, at 5, to a handle 3 through a spacer 12 and a blade 9 with a finger-operable knob 13, the blade 9 being slidably mounted in a carriage 11 for movement radially of the annular member 7 and the carriage 11 having lugs 11a engaged around the member 7 so that the carriage 11 is slidable circumferentially around the annular member 7. In use, the blade 9 is first moved inwardly to pierce an egg over which the member 7 is is placed and the carriage 11 and blade 9 are moved around the member 7 to cut the shell. The handle 3 carries a U-shaped member 12 fitted with rubber sleeves 21 which resiliently engage the egg to prevent its rotation. The blade 9 is removable.
Patent GB-1131844-A (GB)
Title: Fluid distributing apparatus
Inventor: GROENLUND KAJ ANDERS
IPC: F16K7/07
Filed: 1965-11-05
Abstract: 1,131,844. Filling containers. ATOMENERGI, A.B. 5 Nov., 1965 [6 Nov., 1964], No. 47056/65. Heading B8T. [Also in Division F1] Apparatus for filling receptacles 1 with predetermined quantities of a plurality of liquids or gases, e.g. radio-active solutions, comprises a plurality of pneumatically actuated pumps 5, Fig. 1, drawing from separate reservoirs 15 and delivering to separate delivery pipes 3, the inlet and delivery valves 7, 6 comprising flexible tubes 10b, 10a mounted in chambers which are pressurized pneumatically to compress the tubes and shut the valves. The pump piston and inlet and outlet valve movements are controlled by an electric motor-driven camshaft 36 having cams 39 to 41 actuating valves 44 to 46 which act to connect the pumps and valve chambers to an air supply 52 or exhaust. Cams 37, 38 and valves 42, 43 control movement of a piston 24, Fig. 2, and a latching member 30 for moving a table 2 carrying receptacles 1. The pump piston stroke in adjustable by screw 21.
Patent GB-1056916-A (GB)
Title: Electrophotographic reproduction
IPC: G03G17/02
Filed: 1964-11-19
Abstract: 1,056,916. Electrophotographic processes. EASTMAN KODAK CO. Nov. 19, 1964 [Nov. 22, 1963], No.47109/64. Heading G2H. In order to obtain uniform print density in electrolytically developing latent conductivity images of widely varying exposure, the electrolysis is carried out under constant current conditions for a fixed period of time. The electric circuit preferably includes a series arrangement of a 250 volt D. C. supply (22) a 1000 ohm resistor (26), the electrolytic cell (2) and a timer operated switch (24). Additionally, to prevent excessively high voltages from being applied across the cell, a 75 volt Zener diode is connected in parallel with it. The sensitive element may be exposed while it is immersed in the cell. Thus an aluminium plate (16) carrying a zinc oxide or cadmium sulphide photo-conductive layer (14) is exposed through a ring electrode, while immersed in an electrolyte consisting of an aqueous solution of manganous, cobaltous and silver nitrates. The development period may coincide with, or overlap, the exposure. An alternative electronically controlled constant current supply is referred to.
Patent GB-1490554-A (GB)
Title: Cohesive sealant article
IPC: C09K3/10
Filed: 1974-10-31
Abstract: 1490554 Crosslinked matrix/mastic polymer blends RAYCHEM CORP 31 Oct 1974 [31 Oct 1973] 47241/74 Heading C3P Articles are made from materials comprising a blend of (1) not more than 50 weight per cent of a cross-linked polymeric matrix and (2) at least 50 weight per cent of a second mastic material, the article remaining coherent at a ttansition temperature of the polymer of the matrix and exhibiting second degree cohesive blocking at and above a temperature not greater than the transition temperature. The second materials may comprise rubbery components and tackifiers, or materials which become such under the conditions, e.g. radiation, used to crosslink the matrix polymer. The matrix polymer may be a crystalline or glassy polymer optionally in admixture with a polyunsaturated crosslinking assistant. The articles may be heat recoverable sealants for pipe and cable junctions and terminations. Examples describe articles comprising materials selected from (1) polyethylene and ethylene/ethyl acrylate copolymer, (2) polyisobutylenes, petroleum resins, EPDM rubber, asphalt, mineral oil, pentaerythritol ester of rosin, rubber reclaim, terpene/ phenol resin and atactic polypropylene, and carbon black, crosslinked by irradiating in the presence of triallyl cyanurate.
Patent GB-1446954-A (GB)
Title: Fluid purification apparatus
IPC: C02F1/00
Filed: 1973-10-11
Abstract: 1446954 Ion exchange INTERATOM INTERNATIONALE ATROMREAKTORBAU GmbH 11 Oct 1973 [14 Oct 1972] 47634/73 Heading B1J Fluid purification apparatus comprises a generally-cylindrical housing, having an inlet and an outlet, and a regenerative heat exchanger fitted in the housing at one axial end thereof, there being defined within the housing at the opposite axial end thereof a purifier space, for accommodating purifying means when the apparatus is in use, and the apparatus further comprising an after cooler, arranged in the housing between the said purifier space and the regenerative heat exchanger, and a pump mounted between the regenerative heat exchanger and the after cooler and operable, when the apparatus is in use, to cause fluid, received thereby from the said inlet by way of a primary flow-path of the regenerative heat exchanger, to flow through the after cooler to the purifier space, where impurities are removed from the fluid by the purifying means, and to return thence to the regenerative heat exchanger so as to pass through a secondary flow-path thereof to the said outlet. In the embodiment shown, fluid to be purified which may be the coolant for a nuclear reactor flows upwards through heat exchanger 4, pump 12 and after-cooler 11, then up through bed 18 of ion exchange resin, and down via annular space 10, back through the heat exchanger to the exit. If desired the resin can be in the annular space so that the liquid flows therethrough downwards. The bed 18 may be contained in a removable cartridge.
Patent GB-1457889-A (GB)
Title: Automatic gearboxes
IPC: F16H59/08
Filed: 1973-11-21
Abstract: 1457889 Change speed control AUTOMOTIVE PRODUCTS Ltd 12 Nov 1974 [21 Nov 1973] 47816/74 Heading F2D The subject-matter is the same as that of the main Application, but the claims are directed to the provision of individual electronic signal generating circuits for each forward ratio of the transmission, each such circuit receiving a signal the frequency of which is indicative of vehicle speed which it converts to a signal the voltage of which is indicative of vehicle speed.
Patent GB-1089984-A (GB)
Title: Strip or web handling apparatus
IPC: G03B21/18
Filed: 1964-11-26
Abstract: 1,089,984. Handling film strip. EASTMAN KODAK CO. Nov.26, 1964 [Nov.27, 1963], No. 48100/ 64. Heading G2A. In an arrangement for feeding a web, e. g. photographic film, a stop can be moved into the path of the leading edge of the web; the arrangement is disposed in a housing having an access door, such that when the door is opened, the stop is moved into the path of the web, and moved out again when the door is closed. At the same time as the stop is moved into the intercepting position, the web-feeding means is rendered inoperative. The drawing shows part of a microfilm printing apparatus, the photo-sensitive material being in the form of a continuous roll 13 housed in an inner chamber 18 having an opening flap 19. Material from this roll passes as a strip 14 out of chamber 18, between rollers 21, 22 and further rollers 25, 26 to an exposure station Fig. 1 (not shown). The exposed length is then cut-off and passed on to a developing station. The apparatus is enclosed in a light-proof cabinet 11 having a door 15 which can be opened for access to the interior. Attached to the cabinet by a pivot 35 is a lever having arms 30, 31. When door 15 is open, as in Fig. 2, the lever is biased by a spring 36 into the position shown, with one arm 30 projecting out of the cabinet, and the other arm 31 projecting up through an aperture 38 in the platform 23 along which strip 14 moves. In this position, arm 31 acts as a locating stop for the leading edge of strip 14. The lever also carries the lower roller 21 of the pair 21, 22, so that in the position of Fig. 2, roller 21 is drawn away out of contact with roller 22. When door 15 is closed, it abuts the lever and pushes it anti-clockwise against the spring 36. This pivots the stop arm 31 down below platform 23, so that it no longer blocks the path of strip 14. At the same time roller 21 is brought back into contact with roller 22, so forming a positive drive for the strip 14 which passes between them.
Patent GB-1180763-A (GB)
Title: Improvements in or relating to frequency diversity reception systems.
IPC: H04B7/12
Filed: 1967-10-23
Abstract: 1,180,763. Diversity reception systems. NIPPON ELECTRIC CO. Ltd. 23 Oct., 1967 [22 Oct., 1966], No. 48121/67. Heading H4L. In a frequency diversity communication system, reception apparatus comprises a heterodyne circuit for a pair of receivers, in which a voltage controlled local oscillator has a frequency equal to one half of the difference between the received frequencies. As described, signals of frequencies f 1  and f 1 +f D  received on an aerial 11 are separated at 12a, 12b and are fed to first inputs of frequency converters 13a, 13b. Second inputs to the frequency converters 13a, 13b are at frequencies f 1 +f i  and f 1 +f D +f i  and their outputs are both at the intermediate frequency f i . These are taken through amplifiers 14a, 14b to the inputs of an intermediate frequency combiner 21, and are also tapped at a and b to the inputs of a phase detector 20. A local oscillator 19 with an associated amplifier 17 provides a first input of frequency f 1 +f i +f D/2  to a frequency converter 16. An oscillator 18 is voltage controlled by the output of the phase detector 20 and provides a second input to the frequency converter 16 having a frequency of f D/2  (equal to half the difference of the incoming frequencies). The output of the frequency converter 16 is separated by narrow band filters 15a, 15b into the said second inputs to the frequency converters 13a, 13b of frequencies f 1 +f i  and f 1 +f D +f i . Control of the oscillator 18 by the output from the phase detector 20 enables a substantially constant phase difference to be maintained between the two inputs of frequency f i  to the combiner 21. In an application to a quadruple frequency diversity system two pairs of receivers connected as described above are provided and the outputs from the two intermediate frequency combiners, which are arranged to be at different frequencies, are taken to another pair of receivers also connected in the same manner.
Patent GB-1565080-A (GB)
Title: Amino-alcohol derivatives and their preparation
IPC: C07D277/60
Filed: 1976-11-18
Abstract: Aminoalcohol derivatives corresponding to the formula (I) <IMAGE>  in which Q is a group <IMAGE> and the other substituents have the meaning shown in Claim 1 are prepared by reaction with a compound of formula I, in which Q represents a group <IMAGE> or <IMAGE>, with an amine of type R3R4NH, Z being a halogen. The alcohol can then be esterified by reaction with an acid or an anhydride as defined in Claim 1. The compounds obtained have activities on the cardiovascular system, for example antihypertensive and/or antispasmodic activities, peripheral vasodilative activity, protective activity against myocardial anoxia, hypolipidemiating activity, antithrombotic activity,  beta -lytic activity or platelet aggregation inhibiting activity, and/or activity on the central nervous system, for example a tranquillising activity.
Patent GB-1020950-A (GB)
Title: Coaxial electrical connector
IPC: H01R24/38
Filed: 1964-11-27
Abstract: 1,020,950. Lamp cups or holders. AMP CORPORATION. Nov. 27, 1964 [Nov. 30, 1963], No. 48282/64. Heading H2E. An electrical connector for use with an iodine lamp having a central blade contact 8 and an outer 'rectangular contact 4, has an inner contact 1 held by resilient detent 13 within an insulating block 2, and an outer contact 3 which fits over the forward end of block 2 and is held by a resilient projection 21 on the 'block, engaging in a hole 26 of the contact. Both contacts have crimping ferrules, those 11 and 19 of the inner contact being located within a rear transverse recess 10 in the block, and these 27 and 28 of the outer contact being positioned between projections 22. The inner contact has a projection on its base to engage the hole on the central blade contact 8 of the lamp, and the outer contact has depressions 25 to engage the outer contact of the lamp. On engagement of the lamp in its holder, the arms of the inner contact are resiliently forced outwards against the constraint of the block 2.
Patent GB-1106349-A (GB)
Title: Production of phthalonitriles, polyester precursors and polyesters
IPC: C07C255/51
Filed: 1965-11-15
Abstract: Phthalonitriles having a "TEG colour" of below 250 are made by distilling crude material in a system having at least 3 plates and with an overall reflux to feed ratio of at least 0.05 to 1. The crude phthalonitrile is preferably that obtained by ammoxidation of a xylene.  Terephthalic acid is prepared by alkaline or acidic hydrolysis of purified terephthalonitrile. Isophthalic acid is made similarly.  Bis-(2-hydroxyethyl) terephthalate is prepared by reacting either purified terephthalonitrile or terephthalic acid obtained from the latter, with ethylene glycol in presence of alkali.
Patent GB-1180467-A (GB)
Title: Casting Apparatus
Inventor: CROWE JOHN EDWIN
IPC: B22D18/04
Filed: 1967-10-24
Abstract: 1,180,467. Casting-machines. AMSTED INDUSTRIES Inc. 24 Oct., 1967, No. 48329/67. Heading B3F. [Also in Division F4] To maintain the lower end 88 (of a riser tube 16 to a mould 18) immersed in molten metal in a ladle 14, motors 80 drive screws 52 to raise a platform 42 supporting the ladle, as air from a pipe 20 into a tank 12 containing the ladle in a pit 22 raises pressure to discharge the metal up the tube 16, the motors 80 being energized by controls responding to load-cells 64 which sense the weight of the ladle 14 and its contents. The platform 42 is a triangle of members with lugs 44 at the corners, each supported by a load-cell 64 suspended by links 58 from a corresponding lug 48 on a circular frame 46 around the ladle base. Each lug 48 bears a nut 50 which coacts with a screw 52. The glazed ceramic lower end 88 of the riser is expendable and is bolted (the joint having a refractory cement covering) to a composite steel-sand-ceramic upper end 86 which has a flange 92 and is sealed to or is part of the tank cover 28.
Patent GB-1195259-A (GB)
Title: Semiconductor Devices
Inventor: CULLIS ROGER
IPC: G03F1/00
Filed: 1967-10-25
Abstract: 1,195,259. Etching. STANDARD TELEPHONES & CABLES Ltd. 25 Oct., 1967, No. 48469/67. Heading B6J. [Also in Divisions G2 and H1] Semi-conductor devices are prepared by successive processing stages using a composite mask produced at least partially by a step-andrepeat camera and comprising first and second patterns for the preparation of first and second apertures in the semi-conductor body, auxiliary masks (also produced at least partially by a step-and-repeat camera) being used to prevent the production of unwanted apertures during each stage. A transistor may be prepared by coating a surface masking layer (e.g. of SiO 2 ) on a semi-conductor wafer (e.g. Si) with a layer of photo-resist, exposing the photo-resist through the mask, removing the unexposed areas of the photo-resist, etching the thus bared areas of the oxide layer (e.g. with ammonium bifluoride), introducing an impurity into the thus bared areas of the semi-conductor, recoating with photo-resist, and repeating the above steps with the mask in different positions so that second and third impurities are introduced into differently patterned areas of the already treated areas of the wafer. The formation of unwanted treated areas after each sequence of steps, due to the presence of all the patterns on the composite mask, is avoided by either (a) after exposing a photo-resist layer through the composite mask re-exposing it through a non- critical auxiliary mask so that, of the areas not previously exposed, only the areas corresponding to the required pattern remain unexposed; (b) after exposure and development of a photoresist layer, applying a second photo-resist layer and exposing it through an auxiliary mask as in (a); or (c) exposing through both the composite mask and auxiliary mask.
Patent GB-1072190-A (GB)
Title: Improvements in or relating to grinding devices
Inventor: LIERDE WALTER VAN
IPC: B24B37/04
Filed: 1964-12-01
Abstract: 1,072,190. Grinding. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). Nov. 16, 1965 [Dec. 1, 1964], No. 48799/64. Heading B3D. A machine for grinding or polishing small samples of loose sinter compacts, such as carbides and graphite compacts, comprises a rotatable grinding table 28 for supporting grinding means, means 33 for effecting rotation of the table, a movable workpiece holder 22 for holding a workpiece 5 in contact with the grinding means, a reference surface 26 on the table on which a supporting surface on the holder may slide external of the grinding means, and means of attachment of the holder to one end of a rod 14 with freedom of movement of the holder in a direction perpendicular to the reference surface, the other end of the bar being connected to a rotatable crank mechanism 10, 11, 12 and an intermediate portion of the rod being supported for pivotal sliding movement, whereby the holder is guided to move the workpiece to follow a small endless path or trajectory which does not include the centre of the table and is at least in part eccentric thereto. The work-table 28 is carried by a shaft 29 which is supported in bearings 30 in a mounting plate 9 and is connected by reduction gearing 36, 37 to a motor 33 driven at 20 r.p.m., the table rotating at 2À5 r.p.m. The table has a recess 26<SP>1</SP> for receiving an interchangeable piece of plate glass 26 which serves as the reference surface and is maintained in position by a member 26<SP>11</SP> fixed to the table by screws 27. The workpiece holder 22 is in the form of a piston slidable in a cylinder 23 and has a disc 40, Fig. 3 (not shown) on which the workpiece 5 is secured by adhesive and which is urged by a spring 41 against three pins, two of which are in the form of screws 43 adjustable to position the plane of the disc relative to the axis of the holder. The lower end of the cylinder has a rim 23<SP>1</SP> by which it is supported on the plate glass around a central part of the glass carrying the grinding means (not shown) engaged by the workpiece. The cylinder 23 is secured in a clamp 21 connected by a pivot 20 to one end of the rod 14. An intermediate part of the rod is slidable in a bush 18 mounted on a spindle supported in bearings 34 on the plate 9, and the other end of the rod is located in a bearing 15 on a crank-pin 10 adjustable along a T-slot in a disc 10 which is supported in bearings 35 on the plate and driven by a motor 5 at 200 r.p.m. In operation, the worktable and crank are rotated, the crank moving the workpiece 5 in a closed substantially elliptical path which is confined over the grinding material and does not include the centre of the table, the rim 23 of the cylinder at all times engaging the plate glass without engaging the grinding material. The table 26 has a central hole to permit observation of the workpiece surface. The path covered by the workpiece may be to one side of, or encompass the centre of, the table 28.
Patent GB-1483638-A (GB)
Title: Method of making superhard articles
IPC: C22C26/00
Filed: 1974-11-21
Abstract: 1483638 Hot pressed cemented carbidediamond INST SVERKHTVERDYKH MATERIALOV AKAD NAUK UKRAIN S S R 21 Nov 1974 49124/74 Heading C7D Hard wear resistant tools are made by hot pressing in a graphite mould a powder charge of cemented carbide and diamond grains < 1 mm. size, the pressing conditions being; heating with H.F. current up to 1200‹C at 1000 - 1100‹C/minute then heating from 1200‹C up to sintering temperature of 1800‹C at 3000-6000‹C/minute using resistance heating through the charge in addition to the H.F. heating. Preferably the charge is held at 1200‹C for up to 2 minutes and at the sintering temperature for 2-3 seconds. The pressure may be 50-100 Kg/cm2 at 1200 C and 100-200 Kg/cm<SP>2</SP> at sintering temperature. The cemented carbide may be WC-Co, WC-Ni or Cr 3  C 2 -Ni.
Patent GB-1278927-A (GB)
Title: A method of manufacturing a lead frame for a semiconductor device
IPC: H05K3/06
Filed: 1970-10-16
Abstract: 1278927 Semi-conductor devices HITACHI Ltd 16 Oct 1970 [29 Oct 1969] 49252/70 Heading H1K. A method of forming a lead frame from a metal plate comprises selectively removing a photoresist coating from portions of the plate, and plating the exposed portions, exposing further portions of the plate and removing these secondly exposed portions in order to form the lead frame. The plate may be electroplated with gold, and the second portions removed by etching. The photoresist may be of positive or negative type, and be exposed via a suitable mask. The plate may be an alloy of iron, cobalt and nickel.
Patent GB-1446238-A (GB)
Title: Forming a row of stitches in a workpiece
IPC: D05B21/00
Filed: 1973-10-23
Abstract: 1446238 Sewing machine BRITISH UNITED SHOE MACHINERY CO 23 Oct 1973 [24 Oct 1972] 49395/73 Heading DIG When a row of stitches is formed in a workpiece 16 supported to be movable in any direction in a plane, the needle thread tension is controlled in response to the direction in which the workpiece is moved. As disclosed, stitches formed during movements beyond certain angular limits are rendered abnormal in appearance; this abnormality is hidden by increasing the needle thread tension in that case so that the abnormality is drawn into the work. The machine is controlled by a digital or analog computer 28 which, if the feed direction falls outside the set limit, operates a piston and cylinder device 40 to pivot a lever 36 to vary the tension provided by the tensioner 32. Two preset tensions are provided in the tensioner disclosed. Work feeding. The workpiece 16 is carried on a support 22 mounted for movement about X and Y axes by racks (one, 24, shown) operated by motor driven pinions 24. Shaft encoders may be connected to the racks.
Patent GB-1110316-A (GB)
Title: Yarn trapping mechanism
IPC: B65H63/08
Filed: 1964-12-07
Abstract: 1,110,316. Stop motion. C. TAYLOR. 6 Dec., 1965 [7 Dec., 1964], No. 49607/64. Heading DID. In a textile machine e.g. a false twist crimping machine (Fig. 1 not shown), at least one yarn is passed over a ceramic grooved disc or roller 18 which, has associated therewith a sleeve 21 normally occupying the position shown but on yarn relaxation or breakage moving over the grooves 20 to trap the yarn or yarns against a flange 17. As shown sleeve 21 is urged towards flange 17 by a spring 24 but is normally restrained by a raised portion 26 (see Fig. 4 not shown) on a spindle 15 which carries the roller 18 and the sleeve 21. By an extension 28 and a link (37) (see Fig. 2 not shown) sleeve 21 is associated with a pivoted arm (33) carrying a pivoted yoke over which the pair of yarns engaging roller 18 pass as they leave the machine. On breakage of one or both yarns the pivoted arm falls to cause sleeve 21 to rotate such that a slot in the end surface of sleeve 21 is brought into alignment with the upstanding portion 26 (see Fig. 6 not shown) and the sleeve is moved by spring 24 to trap the yarns. The yoke on the pivoted arm forms an essential guide so that the machine cannot be started without threading up the yarn trapping mechanism.