baber/WOPTO huggingface dataset:
Patent GB-1404036-A (GB)
Title: Lock actuating devices
IPC: B60R25/01
Filed: 1972-09-11
Abstract: 1404036 Vehicle door lock actuating device N BALSON 11 Sept 1972 [8 Oct 1971] 42160/ 72 Heading E2A A vehicle door lock actuating device comprises plunger member 10 which is connectible as through a threaded rod 11 with a vehicle door locking mechanism and when, when so connected, projects outwardly from an aperture in a sill 14 of the vehicle door for reciprocating lock actuating movement. A sleeve member 17 surrounds the plunger member 10 so that, in use the plunger member cannot be moved sufficiently or at all towards the sill 14 by finger actuation to cause locking of the locking mechanism. The sleeve member 17 and the plunger member 10 are relatively movable in both directions of the axis of the plunger member 10 and the sleeve member 17 being engagable with the plunger member 10 in one direction of movement to move the plunger member 10, in use, away from the sill 14. In the construction shown the plunger member 10 is formed with a head portion 16 for entrainment in the abovementioned one direction of movement by a flange at the lower end of the sleeve. Alternatively the plunger member may be, provided with radially extending pins which work in a slot of the sleeve member (Figs 3 not shown). A spring 19 is interposed between the sleeve member and plunger member and the sleeve member is provided with a slot 20 whereby the plunger member may be depressed by a key. The sleeve member may comprise two components connected by a screw thread (Fig 4, not shown). The slant of the plunger member and/or the internal configuration of the sleeve may be other than circular to facilitate the screwing of the plunger member to the rod 11.
Patent GB-1158256-A (GB)
Title: Semiconductor Switch for Handling Rapidly Increasing Currents.
IPC: H01L29/00
Filed: 1966-09-22
Abstract: 1,158,256. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORP. 22 Sept., 1966 [23 Oct., 1965], No. 42323/66. Addition to 1,158,255. Heading H1K. In an S.C.R. of the kind described in Specification 1,158,255, in which the switching-on speed is increased by arranging the gate contact adjacent to a part of the cathode region not contacted by the cathode electrode so that a lateral voltage drop is produced on firing, the cathode electrode contacts at least half of the area of the cathode region, and the uncontacted part of the cathode region is thinner than the part contacted by the cathode electrode. The device shown in Fig. 2 is produced by diffusing aluminium and gallium into an N-type silicon wafer to produce a P-type surface layer and then selectively diffusing-in phosphorus using an oxide mask to produce an annular N-type cathode region 11. A gold-boron alloy foil 33 and an aluminium foil 32a are fused to opposite faces to produce P + type gate and anode contact regions 33a, 32b respectively. A layer 31a of aluminium is deposited by vacuum evaporation. The edges of the wafer are removed by sandblasting, molybdenum cathode and anode electrodes 31c, 32c are hard soldered to layers 31a and 32a and the device is encapsulated. The uncontacted part 11a of the cathode region 11 is reduced in thickness by etching to increase its lateral resistance. The cathode region may also be produced by alloying a gold-antimony foil to the surface and removing the excess metal from the uncontacted portion by etching. In an alternative embodiment, Fig. 3 (not shown), the cathode region is square-shaped with the gate contact inset into one corner.
Patent GB-1120412-A (GB)
Title: Novel 2-aminoethylpyrrol-3-yl ketones
IPC: C07D209/14
Filed: 1965-10-07
Abstract: Novel 2-aminoethylpyrrol - 3 - yl ketones of general formula <FORM:1120412/C2/1> wherein R1 is H or alkyl of 1-4 carbon atoms, phenyl, benzyl, or 2-, 3- or 4-pyridyl group, R2, R3 and R4 are alkyl, alkenyl or cycloalkyl groups of up to 8 carbon atoms, or phenyl, halophenyl, lower alkoxyphenyl, benzyl, or R3 and R4 together are an alicyclic ring of up to 8 carbon atoms, R5 is H or alkyl, alkenyl, or cycloalkyl of up to 8 carbon atoms, or phenyl, or benzyl, R6 is H or methyl, or together with R5 forms a ring containing up to 6 carbon atoms, and X and Y are H, lower alkyl, hydroxy lower alkyl, lower-acyloxyalkyl, carbamyloxy-lower alkyl or phenyl-lower alkylcycloalkyl groups, or which together form a heterocyclic ring having a maximum of 8 members, and the non-toxic acid addition salts thereof, are prepared by Mannich reaction using as starting materials pyrrol-3-yl ketones of formula <FORM:1120412/C2/2> and ammonia, or primary and secondary amines, or the compounds of the invention may be prepared in two steps by reacting pyrroles, suitably substituted, with b -halo propionyl halides, and reacting the product with ammonia, or a primary or secondary amine.  Lower alkyl, acyl and alkoxy groups contain up to 5 carbon atoms.  Pyrrol-3-yl ketones of the second formula above are prepared by reduction of an a -oximino ketone in the presence of a 1,3-diketone, condensation occurring during the reduction process, or by a Friedel-Craft reaction between suitably substituted pyrroles and an acyl halide. 4,5-Dimethyl-2-propyl-pyrrole is prepared by reacting ethyl butyrylacetate and 2-oximino-3butanone, reducing the resulting product with zinc dust and acetic acid to form ethyl-4,5dimethyl - 2 - propyl - pyrrole - 3 carboxylate and hydrolysing and decarboxylating this compound. Ethyl - 5 - butyl - 2,4 - dimethylpyrrole3 carboxylate is prepared by a similar method and then converted to 5-butyl-2,4-dimethyl pyrrole by hydrolysis and decarboxylation.  Pharmaceutical compositions useful as tranquillizers and antidepressants, and which may be administered orally, parenterally, or rectally in the form of tablets, capsules, syrups, injectable solutions or suppositories, contain a compound of the first general formula above as the active ingredient.
Patent GB-1068398-A (GB)
Title: Improvements in or relating to multiple magnetic recording heads
IPC: G11B5/265
Filed: 1965-10-07
Abstract: A screening plate for separating the head-units of a magnetic record/playback head (see Division G5) is made of one of the following alloys:-  .(a).77%.Ni.(by weight) ..5%.Cu. ..2%.Cr. ..16%.Fe. .(b).78%.Ni. ..4%.Mo. ..18%.Fe. .(c).78%.Ni. ..4%.Mo. ..5%.Cu. ..13%.Fe.  The magnetic permeability of the alloys ranges from 10,000 to 50,000.
Patent GB-1317233-A (GB)
Title: Pressure distributor valve construction for power steering gear mechanisms
IPC: B62D5/087
Filed: 1971-09-13
Abstract: 1317233 Power steering FORD MOTOR CO Ltd 13 Sept 1971 [17 Nov 1970] 42607/71 Heading B7H In a power steering gear in which a piston 14 mounted for reciprocatory movement in a cylinder 12 is in geared connection with a transverse driven shaft 32 and is in threaded connection with a driving shaft 52 disposed therein, the driving shaft being connected by a torsion rod 56 to a steering shaft 58 which is surrounded by a valve spool 62 having bands 64, 66, 68 registering with internal lands in a valve chamber 70 and with internal grooves 76, 82 which are in fluid communication with said cylinder via passages 78, 84 on either side of the piston, a spool actuator ring 102 is fitted for relative axial movement with respect to the steering shaft 58 and is in threaded connection with the driving shaft 52 with a valve spring 109 biasing the valve spool 62 against ring 102 whereby rotary motion thereof relative to the driving shaft 52 effects relative axial motion of the ring which is followed by the valve spool upon deflection of the torsion rod. Valve housing 22 is provided with supply port 72, which delivers fluid to an annular groove 74, Fig. 3 and an exhaust port 88. An adjusting screw (46) Fig. 2, (not shown), urges the sector gear of shaft 32 toward a zero backlash position. A positive connection between driving shaft 52 and steering shaft 58 is provided by registering internal and external spline teeth 94, 96 respectively. Actuator ring 102 has teeth which engage helical threads 100 of shaft 52 and the ring is positively connected to steering shaft 58 by drive spline teeth 103 engaging external splines 94. A complementary actuator ring 104 has projections 106 passing through openings 108 actuator ring 102 and are turned inwardly to register with groove 110 in the valve spool 62.
Patent GB-1010529-A (GB)
Title: Improvements in self-sealing couplings
Inventor: LANGFORD CECIL CHARLES
IPC: F16L29/04
Filed: 1963-10-30
Abstract: 1,010,529. Pipe couplings. DAMIC CONTROLS Ltd. Oct. 29, 1964 [Oct. 30, 1963], No. 42876/63. Heading F2G. A self-sealing coupling includes two coaxially arranged parts 1, 2 adapted for connection together by a sleeve nut 3 to draw the parts into facial engagement, an annular ring 5 located in the part 1 and having a frustoconical seating 7, a spring-urged, frustoconical-headed, piston valve 9 axially slidable within the part 1 to engage the seating 7, a probe 15 carried by the part 2 and coaxially mounted therein and adapted to make facial engagement with the valve 9 to displace the latter from the seating 7 when the parts are drawn together. The probe has a mushroomtype head, and a sleeve valve 18 in the part 2 is spring-urged into sealing engagement with the head when the parts are separated, the valve being dimensioned to fit and enter a bore in the ring 5 to make sealing contact therewith and as a result of engagement of the parts to be moved out of engagement with the head of the probe against the action of the spring 21. Specifications 840,559, 875,431 and 988,894 are referred to.
Patent GB-1512958-A (GB)
Title: Filter
IPC: B01D29/01
Filed: 1975-10-06
Abstract: 1512958 Filter element CROSLAND FILTERS Ltd 6 Oct 1975 [4 Oct 1974] 43072/74 Heading B1D A filter element made of pleated sheet material, such as resin-impregnated paper, has the material folded inwards at the ends of the pleats to close the ends as shown. The additional fold lines 16 are so oriented that the lower edges of the triangular panels shown are coplanar with the lower fold lines of the pleats. The element may be annular or generally flat and is provided with end caps or an enclosing frame (not shown).
Patent GB-970896-A (GB)
Title: Improvements in or relating to semi-conductor arrangements enclosed in housings
IPC: H01L29/00
Filed: 1962-11-14
Abstract: 970,896. Semi-conductor devices. SIEMENSSCHUCKERTWERKE A.G. Nov. 14, 1962 [Nov. 28, 1961], No. 43154/62. Addition to 970,895. Heading H1K. The semi-conductor device of the parent Specification, which consisted of a semi-conductor element alloyed to a carrier plate and pressed against a cooling stud by a spring-loaded pin, the stud and the pin forming the electrical connections, is modified by using a semi-conductor element with two carrier plates, one attached to each of its faces. As shown, Fig. 2, the housing of the parent Specification is modified by forming the bell-shaped retaining member 19 with a groove to prevent the upper carrier plate 6 of the semi-conductor unit from touching the member 19 and shorting out the device. The semiconductor unit may be inserted in the housing in either polarity without alteration of the mechanical structure. The semi-conductor unit may be manufactured by alloying electrodes of gold and aluminium to the faces of a silicon or germanium wafer and then fusing a carrier plate of chromium, molybdenum or tungsten to both electrodes. Alternatively the unit may be manufactured by fusing together under pressure in graphite powder a stack comprising a molybdenum disc, an aluminium foil, a wafer of P- type silicon, and a gold-antimony foil, and then etching the exposed semi-conductor surface. A second molybdenum carrier plate has a silver foil rolled or soldered on to one face which is then pressed on to the exposed face of the alloyed wafer at an elevated temperature. The carrier plates may have a larger diameter than the semi-conductor wafer and the resulting annular gap between them may be filled with insulating material.
Patent GB-901461-A (GB)
Title: Hybrid a.c./d.c. bridge
Inventor: COOK RONALD JOHN
IPC: G01R17/00
Filed: 1960-12-16
Abstract: 901,461. Measuring bridges. LONDON ELECTRICAL MANUFACTURING CO. Ltd. Dec. 16, 1960, No. 43342/60. Class 37. In an A.C. energized impedance test bridge (Fig. 1), test and reference impedance arms Z 1  Z 2  across A.C. source E, e.g. of high frequency are returned to earth and their source ends are connected through respective polarity opposed half-wave rectifiers 15, 16 to resistance ratio arms R, S returned to point C at which the unbalance signal appears; A.C. voltages a, b appearing across the ends of Z 1 , Z 2  and D.C. voltages A+, B - appearing across the ends of R, S which are returned to earth over symmetrical resistance capacitance smoothing circuits 17, 19 and 18, 20. The rectifier impedances are large compared with Z 1 , Z 2  and resistances R, S are large compared with resistances 17, 18. Shunting effects of stray impedance are removable by the arrangement set forth in Specification 901,460. Z 1  R It is shown that for balance - = - and the Z 2  S unbalance signal is D.C. of polarity indicating the sense of deviation of the test impedance with respect to the reference impedance, and may be used to operate a gas tube trigger circuit, e.g. for indication or rejection of production impedances deviating from standard. The D.C. energized ratio arms may be changed in setting by remote control utilizing e.g. relays. In a modification (Fig. 2, not shown), for capacitance measurement wherein no D.C. path to earth exists in arms Z 1 , Z 2 , points a, b are capacitance coupled through resistances << R, S to points A+, B-; the latter being earthed through equal capacitances and the outputs of the capacitances being earthed through polarity opposed half-wave rectifiers.
Patent GB-1039750-A (GB)
Title: Dental prostheses
Inventor: BRUCKMANN PAUL
IPC: C08F20/58
Filed: 1965-04-29
Abstract: Dental prostheses are made by polymerizing in a mould a mixture consisting of one or more polymers of methyl methacrylate together with methyl methacrylate and a N-alkylol or N-alkylol ether of acrylamide and/or methacrylamide. Also present in the mixture may be a polyunsaturated monomer, e.g. divinylbenzene, triacryl formal, glycol diacrylate and glycerine triacrylate and trimethacrylate. Polymerization is effected in the presence of a free-radical catalyst, e.g. benzoyl peroxide.  The Examples describe polymerizing mixtures of polymethyl methacrylate and a methyl methacrylate/ethyl acrylate copolymer with:  (1) methyl methacrylate and N-(2-hydroxyethyl) methacrylamide, and (2) methyl methacrylate and N-methylol methacrylamide monomethyl ether.
Patent GB-1513497-A (GB)
Title: Multilayer board for boxes and cartons
IPC: B65D65/40
Filed: 1976-10-20
Abstract: 1513497 Container blanks INDUSTRIA CREMONESE D'ARTI GRAFICHE snc 20 Oct 1976 [28 Oct 1975] 43520/76 Heading B2E  A multilayer board for use in the manufacture of cartons and boxes comprises a back layer or verso, a middle stiffening layer, suitably of kraft stock, and a front layer formed by a coating of whitening material and an overlying coating of white ink which conceals the colour of the middle layer and creates a white background suitable for over printing. The whitening layer may be applied to the middle layer by spraying or sprinkling and a layer of white ink then printed on by rotogravure. The white ink may be selectively rotogravure printed leaving free the portions of the board which are intended to form flaps or tabs for glueing the erected box or carton.
Patent GB-1092612-A (GB)
Title: Improvements in or relating to ultrasonic machining of hard materials
Inventor: LEGGE PERCY
IPC: B23G7/00
Filed: 1965-10-13
Abstract: 1,092,612. Grinding. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 10, 1966 [Oct. 13, 1965], No. 43526/65. Heading B3D. A method of forming a screw thread on a workpiece comprises vibrating and rotating a diamond impregnated forming tool in an ultrasonic machining head while rotating and axially moving the workpiece through the desired pitch relative to the machining head. The tool 10 is mounted in a transducer and converter unit in a casing 11 and is rotated by an electric motor 12, the assembly being vertically adjustable along a slide 13 on a vertically adjustable bracket 14. The weight of the assembly is balanced by a mass 17 which is movable up-and-down by hydraulic means to hold the tool in a desired operating position. The work, which may be of glass, is mounted in a chuck 20 on a spindle 22 keyed to a hollow screw 23 in a nut 25 secured to a housing 26. A worm-wheel 37 is keyed to the spindle and engaged by a worm 34 driven by a motor 30. The motor and chuck assembly are mounted on a plate 40 adjustable by a cross slide 41. The tool may have one or a plurality of diamond impregnated thread forming portions and is rotated at 100 to 1800 r.p.m. The workpiece is formed with a hole of the correct tapping size and is adjusted to be eccentric of the tool. The motor 30 is operated so that the workpiece is rotated and axially advanced. The workpiece may rotate at 1¢ r.p.m. and the amplitude of the tool be 0À00025 to 0À0005 inch. The thread forming portions of the tool may decrease incrementally in diameter. The machine may be used to form internal or external screw threads.
Patent GB-1286150-A (GB)
Title: Homogenising coils for a nuclear magnetic resonance apparatus
IPC: G01R33/3815
Filed: 1969-09-03
Abstract: 1286150 Nuclear magnetic resonance spectrometers PERKIN-ELMER CORP 3 Sept 1969 [18 Oct 1968] 43598/69 Heading G1N [Also in Division H1] In a nuclear magnetic resonance spectrometer, field homogenizing coils are formed by a plurality of arcuate conductors 72 on the inner surface of a tubular insulator 73 and a plurality of rectilinear conductors 74 on the outer surface of the insulator and means connecting the arcuate and rectilinear conductors to provide a plurality of electrically insulated orthogonal field correction coils. The tubular insulator may be a rolled up double-clad printed circuit board, Fig.2C, having overlapping surfaces so that some or all of the rectilinear conductors of a coil are overlaid and carry currents in opposite directions to effectively cancel their magnetic fields. Fig.1 shows a crossed coil spectrometer having a superconductive polarizing magnet 50. An arrangement is described in detail of coils for producing corrective magnetic fields representable by spherical harmonics up to and including the 5th zonal and (4, 3) terseral. A circuit, Fig. 33 (not shown) provides an adjustable bleeding of current between the (2, 1) coil and the (4, 3) coil to offset contamination of the (4, 3) harmonic by the (2, 1) coil.
Patent GB-1535754-A (GB)
Title: Release coating compositions and release papers prepared therefrom
IPC: D21H19/00
Filed: 1975-10-27
Abstract: 1535754 Release coating formulations SCOTT PAPER CO 27 Oct 1975 [7 Nov 1974] 44172/75 Heading C3R [Also in Division B5] Release coating formulations comprise a release agent, a monomeric compound containing more than one alcoholic OH group, a crosslinkable thermosetting resin and optionally, water. The release agent may be a Werner type complex of a fatty acid with chromic chloride, a fatty acid, an alcohol derived from a fatty acid or a silicone oil. Suitable hydroxy compounds are pentaerythritol, glycerine, a sugar or tarbaric acid. Urea-formaldehyde, melamine-formaldehyde or phenolic resins are the preferred thermosetting resins. Release papers may be prepared by coating the formulation on at least one surface of a fibrous base followed by heating to cure the thermosetting resin.
Patent GB-1403557-A (GB)
Title: Determination of the quality of jewellery stones
IPC: A44C17/00
Filed: 1972-09-25
Abstract: 1403557 Investigating jewels photoelectrically COLORANT SCHMUCKSTEIN G.m.b.H. 25 Sept 1972 [29 Sept 1971] 44198/72 Heading G1A [Also in Division G2] A jewellery stone 1.7 is investigated by directing on to it a light beam from a source 1.1 and monitoring the light reflected from the stone either photoelectrically or photographically. Photo-electric embodiment . As the stone is rotated about its major axis on a goniometer table (1.04) fig. 2 (not shown) a photo-cell arrangement 1.13, 1.14 is driven in a circular arc about the table, thereby scanning the reflections continuously over a spiral path. The photo-cell output feeds a log. amplifier 1.15 and then a chart recorder 1.17 which gives a visual indication of reflection intensity v. angular position. The number of reflection pulses is counted at 1.26. Photographic embodiment. A colour film is located in a circular are around a rotating stone, fig. 5 (not shown).
Patent GB-1239909-A (GB)
Title: Improvements in or relating to windows
Inventor: LAVINGTON DONALD GEOFFREY
IPC: E05D15/50
Filed: 1967-09-28
Abstract: 1,239,909. Alternative movement window assemblies. D. G. LAVINGTON. 16 Dec., 1968. [28 Sept., 1967], No. 44244/67. Addition to 1,143,281. Heading E1J. In the alternative movement window assembly of the Parent Specification the stay 10, bar 19 and tube 20 (Fig. 7 of the Parent) are eliminated and there is provided in place thereof, for each of the upper and lower sides of the sash, means for locking the window in any one of its four open positions, comprising a pair of stay bars 7, Fig. 1, Pro. pivotally mounted at one end 8 in a substantially universal manner as by a pin 8, (Fig. 2 Pro) in a bracket 17 loosely pivoting in a hole in one end of the end of the bar 7, on the inner face of the sash 1, the bars 7 diverging from each other towards their other ends at which they are pivotally connected to respective sliders 10 imprisoned to slide in a channel 11 in the window frame, and manually operable handle 13 whose shaft passes through the arms of the channel to screw into a nut 15 fixed to the channel and a collar on the shaft to engage the outer face of the other arm of the channel, whereby the channel can be compressed on to the sliders 10 and lock them against movement in the channel to hold the sash in whatever position it may be. Movement of the sliders is limited by stops 9 in the channel. A second embodiment is also described (Figs. 1-4 complete not shown) with alternative universal joints.
Patent GB-958893-A (GB)
Title: Interpolymers of ethylene
IPC: C08F16/12
Filed: 1960-12-23
Abstract: An interpolymer of ethylene and vinyloxyethanol which may also contain a small amount of another monomer (e.g. vinyl acetate), said interpolymer having a molecular weight of less than 5,000, may be prepared by polymerization at a pressure below 10,000 psi. in the presence of oxygen or a free-radical initiating catalyst, e.g. ditertiarybutyl peroxide. The products are oils, greases or waxes and find application as lubricants, functional fluids and leather softeners. Specification 398,173 is referred to.ALSO:Interpolymers of ethylene and vinyloxyethanol which may also contain a small amount of another monomer (e.g. vinyl acetate), said interpolymers having molecular weights of less than 5,000, are used, in conjunction with mineral oils, as lubricants and functional fluids.  Specification 398,173 is referred to.
Patent GB-1516709-A (GB)
Title: Fusible transcalent electrical device
IPC: H01L25/18
Filed: 1975-10-28
Abstract: 1516709 Semiconductor devices RCA CORPORATION 28 Oct 1975 [20 Dec 1974] 44426/75 Heading H1K [Also in Division H2] An electrical device comprises an electronic component 10, such as a Si thyristor, cooling chambers 20, 22 with metal walls 24, 26 bonded to the electrodes of the component 10, and terminals 44, 46 fixed to the walls 24, 26, there being thinned wall portions 70, 72 completely separating the terminals 44, 46 from the electrodes and acting as fuses therebetween. The cooling chambers 20, 22 may be heat pipes or they may be cooled by a circulating fluid and the component 10 may be sealed within an annular envelope 53 including metal and ceramic parts. The cylinders 24, 26 may be Cu and it may be brazed on to Mo end plates 28, 30 using a Au-Ni alloy.