baber/WOPTO huggingface dataset:
Patent GB-912806-A (GB)
Title: Screen printing apparatus
IPC: B41F15/42
Filed: 1958-12-24
Abstract: 912,806. Screen printing. ARGON SERVICE Ltd. Dec. 24, 1958 [Dec. 28, 1957], No. 41660/58. Class 100 (2). In a screen-printing apparatus a frame 3 carrying the screen is mounted on a shaft 4 rotatable in bearings 5 on the frame 1, the shaft 4 also having arms 6 rigidly mounted thereon and secured together by a bar 20. A spring 45 continuously urges the frame 3 into the raised position shown in Fig. 2. A squeegee 7 in a holder 8 which is mounted on a carriage comprising two telescopic end members 10 and two horizontal bars 9 extending therebetween is reciprocable over the screen by lever devices 14, 15 connected at 13 to the telescopic end members 10. The members 10 carry at their lower ends rollers 11 which run in guides 12 at the sides of the frame 3. The levers 15 are secured at their lower ends to a shaft 17 journalled in the frame 1 and an arm 18 is also secured to the shaft 17. The arm 18 is pivoted to the connecting rod of a piston 22 of a pneumatic ram the cylinder 21 of which is pivoted to an arm 19 rigidly secured to the bar 20. A lever 33, Fig. 3, is pivotally connected to the frame 1 at 42 and to the bar 20 and at its lower end actuates a Bowden cable 43 controlling a band brake 31, the drum 30 of which is secured to the shaft 17. In order to print on stock on the table 2 the operator depresses a pedal 26 controlling a valve 25 whereby, with the parts in the Fig. 2 position, air under pressure is fed through a pipe 24 into the right-hand end of the cylinder 21. As the shaft 17 is restrained against rotation by the band-brake 31 the cylinder 21 moves to the right and causes the frame 3 to swing downwards, against the bias of the spring 45, until it rests flat on the table 2. During this movement the bar 20 has moved to the right, thus causing the lever 33 to oscillate and release the band-brake 31, whereupon the piston 22 is free to move to the left and rotate the shaft 17. Rotation of the shaft 17 causes the squeegee 7 to move across the screen in a printing stroke. Rollers 36 carried by arms 35 pivotally mounted on the lower of the bars 9 run along the tops of the guides 12 and at the end of the printing stroke abut against stops 40 on the frame 3 so that the arms 35 are swung towards the shaft 4, thus slightly raising the bars 9 and squeegee 7 so that the latter applies less pressure to the screen on the return stroke. As the squeegee ends its printing stroke a rod 29 pivoted to one of the links 15 engages an adjustable screw stop 48 on a rod 28 causing the latter rod to oscillate and, through a further rod 27 reverse the valve 25. Air under pressure is thereby fed to the left-hand end of the cylinder 21 through a pipe 23 and the pipe 24 is connected to exhaust, so that the parts are restored to their Fig. 2 positions. At the end of the squeegee return stroke the rollers 36 engage stops 41 and cause the arms 35 to swing away from the shaft 4 and lower the squeegee.
Patent GB-1022933-A (GB)
Title: A process for the preparation of polymers which can be cross-linked and which are soluble in polar solvents
IPC: C08F8/30
Filed: 1964-10-13
Abstract: A polymer or copolymer of b -(31,41-dihydro -21H-pyran-21-yl)-b -propiolactone, possessing intact lactone groups is modified by treatment with a base which is either an inorganic nitrogenous base or an organic mono-amine. The reaction is preferably effected in aqueous solvent, using hydrazine, ammonia or a water-soluble primary or secondary aliphatic monoamine. The modified polymer can be further reacted with an organic polyamine to give an insoluble cross-linked product.
Patent GB-1499649-A (GB)
Title: Electronic component testing and extraction tool
IPC: G01R1/04
Filed: 1976-10-08
Abstract: 1499649 Electrical test coupling EVERETT/CHARLES Inc 8 Oct 1976 [17 Oct 1975] 41886/76 Heading H2E A combined test clip and electronic component extraction tool, comprises a body 12, and a pair of levers 26, 28 pivotally supported on respective sides 18, 20 of the body 12, each lever 26, 28 supporting a pair of spaced contacts 80, and each contact 80 having an exposed upper and lower end 82, 84, the lower end 84 comprising a hook opening toward the opposing lever. As described, the body 12 has spaced along each side 18, 20 a plurality of upstanding elongate contacts 62 having bevelled depending ends which are spaced outwardly of the hooked ends 84 of the levers 26, 28 and which resiliently give to frictionally abut respective conducting legs of, for example, an integrated circuit package 86. The top ends of the levers 26, 28 are biased apart by means of a compression spring 50 which passes through a bore 46 in the body 12 and is seated in recesses 48 in the levers 26, 28. The hook ends 84 lock the tool in position and the exposed upper ends of the contacts 62, 80 allow individual test leads to be electrically connected to selected conductors 88 of the package 86.
Patent GB-1449579-A (GB)
Title: Diallyl esters of dicarboxylic acids and their use in cross linking compositions
IPC: C08K5/00
Filed: 1974-09-26
Abstract: 1449579 Cross-linking monomers INTERNATIONAL STANDARD ELECTRIC CORP 26 Sept 1974 [11 Oct 1973 (2)] 41889/74 Heading C3P [Also in Division C2] The invention comprises a polymeric composition having incorporated therein a crosslinking coreactant compound including a diallyl ester of formula wherein R is C 4-20  aliphatic, alicyclic, mixed aliphatic-alicyclic, or aralkyl; R<SP>1</SP> and R<SP>11</SP> are independently hydrogen, aliphatic, alicyclic, aralkyl or aryl; and the total number of carbon atoms in R, R<SP>1</SP> and R<SP>11</SP> is from 10 to 34. The invention further comprises a cross-linked polymer composition containing the ester of Formula (I). The compositions preferably contain a high temperature processing fluorocarbon homopolymer or copolymer and may additionally contain a polyallylic ester of a carboxylic acid having at least three carboxylic groups connected by an aromatic or heteroaromatic radical. Polymers specified in the examples are ethylene-tetrafluoroethylene and ethylene - chlorotrifluoroethylene copolymers, and diallyl esters specified are of brassylic acid, 2,6-dibutyl- and 2,6-dibenzyl-pimelic acid and bis-(bicyclohexyl carboxylic acid). Cross-linking is effected by electron beam radiation.
Patent GB-1018984-A (GB)
Title: Benzoxacycloalkaneamides
IPC: C07D307/84
Filed: 1963-10-23
Abstract: The invention comprises compounds of formula <FORM:1018984/C2/1> wherein Ph is a phenyl group, n is 1, 2 or 3 and R is a C1- 7 alkylamino, di-(C1- 7 alkyl) amino, C1- 7 cycloalkylamino, benzylamino, morpholino, pyrroldino or 1-methyl-4-piperazino group, and their preparation by reaction of a compound of formula <FORM:1018984/C2/2> wherein X is chlorine or bromine with at least two molecular proportions of the appropriate amine.  The compound of the invention where n is 3 and R is a 1-methyl-4-piperazino-group has analgesic activity.
Patent GB-1190396-A (GB)
Title: Propylene Polymer Moldings and their production
IPC: C08L23/10
Filed: 1967-09-14
Abstract: 1,190,396. Moulding propylene polymers. BADISCHE ANILIN- & SODA-FABRIK A.G. 14 Sept., 1967 [15 Sept., 1966], No. 41971/67. Heading C3P. Homopolymers of propylene and copolymers of propylene with one or more other olefins and which contain at least 90% of propylene units, and which are made by a gas-phase polymerization process and which contain at least 15% by weight of polymeric material soluble in boiling n-heptane under standard pressure, and less than 100 p.p.m. of ash constituents are moulded into articles. The polymer may be moulded per se or mixed with pigments, stabilizers, ageing retardants, fillers, or other polymers such as polyethylene or vinyl chloride. The polymerization is preferably effected in the presence of a catalyst comprising TiCl 3 .1/3 AlCl 3  and which yields at least 10,000 parts by weight of polymer per part of TiCl 3 . 1/3 AlCl 3 . The polymers and compositions thereof may be moulded by known techniques into filaments, threads, fibres, tapes, ribbons, films, and sheets, and these may be monoaxially or bi-axially stretched after formation.
Patent GB-1063199-A (GB)
Title: A source of positively-charged particles
Inventor: CONSOLI TERENZIO
IPC: H01J27/02
Filed: 1965-10-04
Abstract: 1,063,199. lon sources. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 4, 1965 [Oct. 14, 1964], No. 42034/65. Heading H1D. A positive ion source comprises an accelerator 1 for producing a plasma jet 2 and a pair of electrodes 6, 7 energized to trap and extract electrons at electrode 6 while passing on a positive ion beam through electrode 5. The trapping of electrons is aided by an axial magnetic decreasing in strength between accelerator 1 and electrode 6. The magnetic field is set up by coil 3. The accelerator 1 may be an electromagnetic accelerator.
Patent GB-863684-A (GB)
Title: Improvements in magnetic work holders
Inventor: BOWER WILLIAM LESLIE
IPC: B23Q3/154
Filed: 1958-12-31
Abstract: 863,684. Permanent magnets. NEILL & CO. (SHEFFIELD) Ltd., J. Jan. 8, 1960 [Dec. 31, 1958], No. 42178/58. Class 35. [Also in Group XXIII] A magnetic work-holder comprises a stationary jaw 8, Fig. 1, constituted by or engaged with one of the pole-pieces of a permanent or electromagnet 40 and a movable jaw 13 which is in sliding contact with the other pole-piece and is movable towards and away from the stationary jaw, whereby a workpiece 7 can bo clamped between the opposed faces of the two jaws. The pole-pieces are separated by a layer 12 of non-magnetic material and are energized either by a magnet 40 having its poles axially arranged and movable axially between workholding and work-releasing positions by a screw 42a and handle 43, or by a magnet 41, Fig. 2, having its poles diametrically opposed and rotatable between work-holding and workreleasing positions. When the stationary jaw consists of a separate part 26, it is aligned with its associated pole-piece by means of a groove 29. Recesses may be provided in the opposed faces of the jaws so that a workpiece, such as a knife blade, can be clamped at selected parts. The sliding jaw may be formed with a V-groove on one face at right angles to a similar groove on its opposite face to enable the jaw to be reversed to hold a workpiece in either of two directions. In another embodiment, the jaw consists of a plurality of members 45, Fig. 5, individually adjustable in a casing 46. In a further embodiment, the jaws are recessed so that one 51 slidably engages the main part 48, Fig. 6, of the horizontal plate of a magnetic work-holder while the other is recessed so that it engages only the pole-pieces 49, which are separated from the main plate by non-magnetic material 50, and is secured against movement at least in the direction of movement of the sliding jaw.
Patent GB-1075255-A (GB)
Title: Bucket wheel with positive bucket emptying
Inventor: SOVA LADISLAV
IPC: E02F3/24
Filed: 1965-10-05
Abstract: 1,075,255. Bucket wheel excavators. UNICOVSKE STROJIRNY, NARODNI PODNIK. Oct. 5, 1965 [June 16, 1965], No. 42185/ 65. Heading E1F. To cause positive emptying of the buckets of an excavator bucket wheel the configuration of each of circumferentially spaced flexible belts positioned between and anchored at the ends to the spaced, preferably, circular side walls of the wheel is governed by an associated cylinder, radial movement of which in a timed relationship to the rotation of the wheel is controlled by a pair of rollers mounted at each end of the shaft on which the cylinder is mounted. One roller of each of the pair engages a cam secured to the adjacent side wall of the wheel whilst the other roller engages in a radial opening in said side wall.
Patent GB-1035024-A (GB)
Title: A new or improved form of wheel strake
Inventor: BROWN ARTHUR WILLIAM GRAY
IPC: B60C27/04
Filed: 1962-11-08
Abstract: 1,035,024. Vehicle wheels. BROWN'S AGRICULTURAL MACHINERY CO. Ltd. Nov. 4, 1963 [Nov. 8, 1962], No. 42203/62. Heading B7C. A wheel strake, adapted to be secured to a tractor wheel, comprises a plurality of circumferentially spaced strake elements 16, each pivotally connected to a radially extending channel-shaped member 11 and adapted to be moved between, and secured in, the extended operative position (Fig. 1) and a retracted inoperative position. The members 11 are supported on two annular plates 12, 14, the plate 12 being provided with means for attachment to the wheel 13. Series of pairs of holes are provided along the channel sides of the members 11 so that locking pins 15 may be inserted. Each strake element 16 is provided at one end with a transverse socket through which passes a pivot-pin, which in turn passes through a selected pair of holes in the channel sides of a member 11. The elements 16 are locked to the members 11 in the radially outwardly extending, operative position or the radially inwardly-extended inoperative position by passing the locking pins 15 through appropriate pairs of holes in the member 11. The free end of each strake element 16 is provided with a head piece 18 in the form of a plate which lies in a plane perpendicular to the direction of rotation of the wheel.
Patent GB-1246627-A (GB)
Title: Apparatus for producing composite filters for cigarettes
IPC: A24D3/02
Filed: 1967-09-15
Abstract: 1,246,627. Tobacco-smoke filters. MOLINS MACHINE CO. Ltd., and D. W. MOLINS. 13 Sept., 1968 [15 Sept., 1967], No. 42269/67. Heading A2C. [Also in Division B8] Apparatus for producing a continuous filter rod having powdered material between plugs includes a device for dispensing measured quantities of the material onto a moving wrapper carrying spaced plugs. The device comprises a hollow wheel 3 with compartments 6 which initially receive the material, e.g. activated carbon from a hopper 1 and subsequently receive, if necessary, via their open inner ends further material from within the wheel. A masking plate 5 prevents discharge of material from the open outer ends of each compartment until the compartment reaches a discharge region, and a masking plate 8 prevents communication between the interior of the wheel and each compartment at the discharge region. A paddle wheel may be provided within the wheel to force the further material into the compartments if required. In the alternative embodiment of Fig. 3 the compartments 6 are the outer portions of radial passages and the masking plate 29 which prevents communication between the interior of the wheel and the compartments at the discharge region engages in an annular groove 30. Prior to passing the discharge region the wrapper is formed into a trough and after passing the discharge region the wrapper is formed into a tube enclosing the plugs and the material. Gumming and heating devices (not shown) secure the edges of the wrapper.
Patent GB-1400047-A (GB)
Title: Plastic fasteners
IPC: F16B37/04
Filed: 1972-09-12
Abstract: 1400047 Plastics panel plug ILLINOIS TOOL WORKS Inc 12 Sept 1972 [13 Sept 1971] 42336/72 Heading F2H A plastics panel plug comprises a head 1 and a tapered shank 2 having a bore 3 for receiving a screw 4, the plug being formed in two halves integrally connected at the end of the shank opposite the head. Each half of the shank comprises a pair of walls having a space 7 therebetween and interconnected by a rib 8, the outer wall being shaped to provide a shoulder 5.
Patent GB-1128491-A (GB)
Title: A walking beam conveyor
IPC: B65G25/00
Filed: 1965-10-06
Abstract: 1,128,491. Conveyers. SIEMAG MASCHINEN - UND STAHLBAU NETPHEN G.m.b.H. 6 Oct., 1965 [12 Oct., 1964], No. 42357/65. Heading B8A. A turntable 9 at the junction between tracks 5-8 of four walking beam conveyers has recesses into which the walking beams can extend so that coils 1 of strip material can be supplied to and removed from the centre of the turntable. The walking beam 14 of track 7, for example, is supported by roller-levers 20 which, in Fig. 2, are in the position they adopt in a lowered position of the beam. The beam is moved longitudinally by an hydraulic cylinder 23 and is raised and lowered by an hydraulic cylinder 21 whose piston rod 24 is pivotally connected to the lever 20 nearest the cylinder 21. The levers 20 are connected by a draw rod 22. The turntable is motor-driven via a worm transmission 17, 18, the motor being reversible to enable the axis of the coils to be changed.
Patent GB-1013589-A (GB)
Title: Improvements in or relating to high frequency circuit networks
IPC: H04B3/16
Filed: 1964-10-19
Abstract: 1,013,589. High frequency network phase compensation. TELEFUNKEN PATENTVERWERTUNGSGESELLSCHAFT m.b.H. Oct. 19, 1964 [Oct. 17, 1963], No. 42540/64. Heading H3U. In order to compensate or change the frequency-dependent phase characteristic of a high frequency network comprising in combination a circuit or device including lumped and/or distributed reactance, a negative impedance converter is connected to the said circuit or device and a passive circuit or device including lumped or distributed reactance dimensioned to provide the required compensation or change is connected to the input of the said converter. As shown in Fig. 2, a tuned circuit 4 to be phase compensated and comprising a resistance R 1 , capacitance C 1  and inductance L 1  connected in parallel is connected to the input of a negative impedance converter 5, the output of the latter being connected to a tuned circuit 6 comprising parallel connected inductance L 2  and capacitance C 2 . The circuits 4, 6 are resonant at the same frequency and a resistance R 2  connected to the input of converter 5 is so dimensioned that, together with the ohmic component of the circuit 6, it corresponds to the resistance R 1 . If the band width of the circuits 4, 6 is the same there will be complete compensation frequency dependent phase effects. In a modified circuit, Fig. 4, in which the phase change is required to be zero above the resonant frequency of the tuned circuit 7, a negative impedance converter 8 has a capacitance 9 connected across its output and an inductance 10 and resistance 11 connected across its input. The capacitance 9, transformed by the converter, combines with the inductance 10 to form a tuned circuit having the same resonant frequency as the circuit 7. In a further modification, Fig. 6, a dipole aerial to be phase compensated is represented by a resistance 15 and capacitance 16, a negative impedance converter 20 being connected in parallel with the dipole through a resistance 19. The output of the converter 20 is connected to another dipole represented by a resistance 17 and capacitance 18. The resistor 19 is so dimensioned that it combines with the transformed resistor 17 to correspond with the resistor 15. If the capacitors are equal the overall effect is a frequency dependent ohmic resistance which decreases with increase in frequency, this effect being similar to a high-pass filter. If the capacitances are replaced by inductances a low-pass filter effect is obtained.
Patent GB-1306604-A (GB)
Title: Electronic data display systems
IPC: G06F3/0489
Filed: 1970-09-07
Abstract: 1306604 Cathode-ray tube displays SIEMENS AG 7 Sept 1970 [8 Sept 1969] 42722/70 Heading H4T A data display system employs an image storage display tube B1 (Fig. 1) connected via a digitalto-analogue converter Bg and switch means S1 with character &c. specifying digital signals from either a data processor DVA or a repeater store BW supplied from a keyboard T the converter Bg being controlled via linked switch means S2 by either a relatively high frequency pulse train (contact d) or a relatively low frequency pulse train (contact c) from a pulse generator Tg such that the characters specified by the data processor DVA are traced on the tube screen at the lower rate and are therefore stored whilst the characters specified by the keyboard T are traced repetitively at the higher rate and may be changed at will since storage is not effected. This arrangement allows the total number of characters displayed to be increased over systems in which all of the characters are produced by continuous image repetition since in a typical system about 4,000 characters can be displayed on a storage tube because continuous repetition is not required and "writing" speeds can be low whereas with the continuous repetition type of systems the maximum number of characters which can be displayed without flicket is about 1,500.  The system may be modified, as shown in Fig. 2, by the provision of further mechanically linked and electrically connected switches S3, S4 to allow the repeater store BW to be supplied with the output signals from the data-process DVA and by the provisions of an additional switch S5 (Fig. 3) selected portions of the data may be displayed on a short persistence tube B2.
Patent GB-991762-A (GB)
Title: Improvements relating to transformers or reactors
Inventor: STIGANT WALTER
IPC: H01F27/02
Filed: 1961-11-29
Abstract: 991,762. Transformers and inductances. BRUCE PEEBLES & CO. Ltd. Nov. 29, 1961, No. 42746/61. Addition to 983,282. Heading H1T. A transformer or reactor having its winding or windings 11 housed in an enclosure separate from the enclosure housing the core 13, 14, as described in the parent Specification, has separate gas-operated (relay) devices 44 or 45 for indicating the occurrence of abnormal gas pressure in the respective enclosures. The winding enclosure is formed by upper and lower plates 17, 18, cylinders 16 and portion 22 of the transformer casing and is provided with pressure relief vents 47. The core enclosure consists of upper and lower chambers 23, 24 and the interconnecting core containing spaces within the cylinders 16. Circulating oil is supplied separately to the bottoms of two enclosures through delivery valves and removed through suction lines communicating with the tops of the enclosures through suction valves. Two conservators 41 are provided as well as filter and drain valves.
Patent GB-1280506-A (GB)
Title: Refractory compounds
Inventor: STEPHEN ROBERT CHARLES
IPC: C30B25/00
Filed: 1969-08-29
Abstract: 1280506 Silicon carbide whiskers LAPORTE INDUSTRIES Ltd 20 Aug 1970 [29 Aug 1969 (2)] 43136/69 and 43138/69 Heading C1A Silicon carbide whiskers are produced by reacting a gaseous source of halogen other than iodine with a solid silicon compound selected from silicon nitride, phosphide, boride or carbide, at 1380-1900‹ C. and at least 100 mm. of mercury and reacting the products thereof with a gaseous carbon-containing compound. Solid phase carbon may also be present. Specified halogen sources are the halogen itself, HF, HCl, SiF 4 , CCl 4  and SiCl 4 , which may be diluted with hydrogen or argon. The specified gaseous carbon sources are carbon monoxide or hydrocarbons such as CH 4 , C 2 H 6 , C 3 H 8 , CH 2 = CH 2 , CH#CH, cyclohexane, benzene, toluene and xylene. The hydrocarbon may be used to produce solid-phase carbon in situ. The gaseous carbon source may be present in the halogen source or may be added downstream of the silicon source. The carbon and halogen sources may be constituted by carbon halides. The ratio of halogen source to carbon source expressed as molar ratio of halogen to carbon may lie within the range 1 : 10 to 10 : 1. Alumina may be present with the silicon source. The temperature in the silicon carbide forming zone is preferably at least 50‹ C. lower than that in the reaction zone. Reference has been directed by the Comptroller to Specification 1,232,617.