baber/WOPTO huggingface dataset:
Patent GB-340063-A (GB)
Title: Improvements in and relating to doors
IPC: E06B3/72
Filed: 1929-10-11
Abstract: 340,063. Door bodies. HOLM, A. V., 9, Blasieholmstorg, Stockholm. Oct. 11, 1929, No. 30958. Convention date, July 25. [Class 20 (iii).] A door is constructed of a panel of ply wood or the like 1 having battens 3, 4, glued therewith to form a frame and battens 2 of the same thickness as the panel secured to the edges and mitred or part mitred at the corners. Several panels together of the size of the door may be used instead of a single panel. Additional battens 4 may be secured to both sides of the panel 1 to make smaller panels.
Patent GB-435231-A (GB)
Title: Improvements in centrifugal separators
IPC: B04B1/08
Filed: 1934-10-29
Abstract: 435,231. Centrifugal separators. AKTIEBOLAGET SEPARATOR, 8, Fleming- gatan, Stockholm. Oct. 29, 1934, No. 30972. Convention date, Oct. 31, 1933. [Class 23] A centrifugal machine foi separating liquids has a stationary skimming tube 4 guided by a bearing 5 in a chamber 13 througl which the light component of the mixture is discharged The mixture is suppliec through the tube 7 and channels 8 to the bowl and the heavy component passes upwards outside the discs to the channel 10 from which it discharges over the exchangeable regulating disc 11. The light component passes between the discs towards the axis, then through the passages 12 to the chamber 13, the skimming tube 4 and the discharge tube 3. Where the mixture is supplied under pressure the radial dimension of the skimming tube is reduced. The ratio of the discharging liquids can be varied by means of a tap in the outlet pipe of the skimming tube, or by exchangeable regulating discs in the outlet of the heavy component.
Patent GB-891015-A (GB)
Title: Improvements in or relating to automatic control systems for sewing and other machines
IPC: G05B19/08
Filed: 1959-09-11
Abstract: 891,015. Programmed electric control systems. PFAFF A.G., G.M. Sept. 11, 1959 [Sept. 12, 1958], No. 31010/59. Class 38 (6). [Also in Group XL (c)] A sewing machine is programmed particularly for making pockets so that after predetermined numbers of stitches, the machine is reversed, is returned to forward stitching, a cutting knife is operated, and the machine reversed and shut down. A contact breaker 45 cam-operated by the stitching mechanism 48 applies switching pulses to the first of three decade counters 50, 51, 52 which count units, tens, and hundreds respectively. Each counter (see Group XL (c)) comprises ten cold-cathode trigger tubes which fire each other in succession together with an eleventh tube which resets the counter and provides a carry pulse for the next decade unit. Each trigger tube is connected to a plug-board 170, by which selected outputs corresponding to particular numbers of stitches can be linked to any one of three bi-stable trigger circuits 200, 201, 202. Each trigger circuit, e.g. 200, consists of a pair of cold-cathode trigger tubes R204, R205 arranged so that a positive pulse from an AND gate 208 causes tube R204 to conduct and so energize a relay B, whilst a pulse from AND gate 225 de-energizes the relay. Three pulses, one from each decade of the counter, are required to open a gate and so control a relay. The relay B controls a solenoid K for reversing the machine, relay D controls a solenoid L for the cutter, and relay C controls not only the reversing solenoid K but also time-delayed relays E and F which stop the machine and re-set the counter respectively.
Patent GB-986249-A (GB)
Title: Implement mounting apparatus
IPC: A01B35/14
Filed: 1963-08-07
Abstract: 986,249. Agricultural implements. S. R. SMITH, and S. H. SMITH. Aug. 7, 1963, No. 31132/63. Heading A1B.  Implements 30, 31 are mounted on tool bars 21 which are connected by parallel links 106, 107 to mounting rods 80, the tools being raised and lowered by hydraulic cylinders 119. The mounting rods 80 are pivoted in side members 70 which form part of a coupling bar 66 which is fixed to the front of a tractor by clamps 50. In the working position the rods 80 are held in position by clamps 72 which clamp the rods 80 to the members 70. The rods 80 may be swung round and held in position by links 96. The implements when in the folded position may be removed from the tractor by uncoupling the clamps 50 and the hoses for the hydraulic cylinders.
Patent GB-737839-A (GB)
Title: Apparatus for reading digital information from a punched tape, card or the like
Inventor: PETHERICK EDWARD JOHN
IPC: G06K7/10
Filed: 1952-12-02
Abstract: 737,839. Digital electric calculating-apparatus; statistical apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 26, 1953 [Dec. 2, 1952], No. 31243/53. Divided out of 737,801. Class 106 (1). [Also in Group XL (b)] Apparatus for reading digital information from a punched or similarly marked member, comprises an optical system, for passing a light beam through holes in the punched member one at a time to a light-sensitive cell, and means for continuously moving the light beam so that the holes representing a word are read sequentially, the rate of movement being such that each word of information is repeatedly read from the member. The apparatus may be used for introducing data into an electronic computor. A beam of light from a source 10 is repeatedly scanned along a length of tape 1 by a rotating polygonal mirror drum 23, and signals are picked up by a photo-cell 9 which correspond to the information punched in the tape. The beginning of each scan is detected by a photo-cell 24, a signal from which is used, in conjunction with a signal from the computer to gate the succeeding series of data signals into the computer. A third photo-cell 20 detects punchings separating each section of information on the tape, and can be used to control the operation of the feeding winch 4 or, if the tape is arranged to move continuously, to determine the operative periods of scanning, i.e. when the information section on the tape is correctly positioned. In another embodiment (Fig. 3, not shown) the light source is located within a transparent cylinder over which the data tape is passed. A concentric slotted drum rotating within the cylinder in a direction opposite to the movement of the tape provides for the scanning action and the resulting signals are picked up by three photo-cells as before. In yet another embodiment light is concentrated by a lens system 11, Fig. 4, on the punched strip 1, and an image of the punched data is focused by a lens 36 on a screen 38 having a slit 40 behind which is a photo-cell 9. The image is swept across the slit by a mirror drum 23. In a modification, by converging the rays through the punched strip a smaller mirror drum may be used. In all cases the tape may contain several columns of perforations and the beam of light may extend across the tape for simultaneous reading of the columns by a row of photo-cells. Moreover, the digits from the various lines may be read in time multiplex by (1) punching the tape so that corresponding holes across it are on a line not perpendicular to its length, or (2) using separate optical systems relatively displaced in the direction of scanning, or (3) using a staggered row of photo-cells. A combination of holes in a line may be used to define a single digit of a number. In all cases perforated cards may be used instead of punched tape. Specification 717,114 is referred to.
Patent GB-903685-A (GB)
Title: An electric connector
Inventor: GREASLEY ERIC ARTHUR
IPC: H01R11/22
Filed: 1959-09-15
Abstract: 903,685. Two-part couplings. PRESSAC Ltd. Sept. 15, 1960 [Sept. 15, 1959], No. 31378/59. Class 38 (1). In an electric connector comprising a suction cup 1 with a side entry socket 6 for a cable and a recessed boss 2 formed centrally on the inner face of the cup for accommodating a contact member 3, a rigid protector sleeve 8, of stiff plastics for example, is fitted in the entry socket of the suction cup and engages snugly over a resistor 9 housed within the socket and connecting the inner core 4 of a coaxial cable to the contact 3. The outer end of sleeve 8 surrounds the insulating covering 7 of the cable core 4 and thus protects the solder joint 11 between core and resistor. Flange 12 on the sleeve may provide a finger piece and an internal shoulder 10 may abut resistor 9 so as to prevent its axial displacement relative to the sleeve.
Patent GB-967409-A (GB)
Title: An improvement in or relating to gear shaving machines
Inventor: GARNER PERCY
IPC: B23F19/06
Filed: 1962-08-16
Abstract: 967,409. Gear-finishing. DAVID BROWN INDUSTRIES Ltd. Aug. 14, 1963 [Aug. 16, 1962], No. 31393/62. Headings B3B and B3K. A gear shaving machine comprises hydraulic means 34, Fig. 1, for rocking a table 22 about an axis 21 in time with the reciprocation of a slide 17, Fig. 2, the table and slide carrying a workpiece and a cutter. The slide 17 is moved on a support 16 by hydraulic means and carries an angularly adjustable headstock which supports the cutter 20 and its hydraulic driving motor. The support 16 is angularly adjustable on a column 11 movable on guides 12 by fluidpressure means and supported by an overarm 13. The hydraulic means 34 reciprocates a slide 31 carrying an angularly adjustable slotted member 29 engaging a follower 28 on the table 22. In operation, the cutter is reciprocated and is fed in by movement of the column 11. As the slide 17 reciprocates, it moves a cylinder 37 over a fixed piston 38 to pump fluid to the piston 34, so that the gear 26 is rocked in unison with the reciprocations.
Patent GB-433016-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K23/66
Filed: 1934-11-02
Abstract: 433,016. Motors. DESOUTTER BROS., Ltd., and DESOUTTER, C., 73, Baker Street, London. Nov. 2, 1934, No. 31451. [Class 35] [See also Group XXXVI] Terminals and accessories, arrangement on machines.-In an electrically-driven rotary tool having a readily detachable switch, the switch has one or more contacts so that when inserted in position, connection is made by spring pressure with other contacts on the motor. The switch comprises a box 17 formed of two parts of insulating material fitting in apertures 7<1> in the motor casing 7. The movable part of the switch consists of a pivoted conducting fork 29 connected by a spring 34 to a sliding button 33, and in the lower portion of the button, the fork connects with two spring contacts 25, 28, Fig. 3. The contact 25 forms part of a conducting plate 22 which has also a spring limb 23 contacting with the metal liner 21 carrying the brush 15. The insulating cover 20 of the brush-holder engages a groove in the switch box and acts as a key therefor. The other switch contact 28 is carried by a spring limb 27 which has a second spring limb 35 making connection with a contact 36 on the field winding bobbin 12. The other terminal of the field winding consists of a contact plate 37 upon which bears a spring-pressed plunger 38 carried by the switch box and connected by a lead 39 to a terminal 41. Alternatively, a further plunger on the switch box connected to the plunger 38 may connect with a contact carried by the casing. The switch may control more than one circuit. The switch casing or a part thereof may be formed in one with the outer insulated part of the brush holder. Specification 433,014 is referred to.
Patent GB-807975-A (GB)
Title: Coating metals with metals
IPC: C23C18/54
Filed: 1956-10-16
Abstract: A metallic surface is coated with metal by being contacted, as by bathing, pouring, or spraying, with a metal salt solution and a metal powder suspension containing a surface-active agent.  The metal to be coated may be solid or a thin film, e.g. of silver on glass or plastic, the coating metal may be copper, nickel or cobalt, the metal salt solution may be as disclosed in Specification 794,261, and the surface-active agent may be an alkyl aryl sulphonate or sodium salt thereof, or a polyaryl sulphonate.
Patent GB-758618-A (GB)
Title: Improvements relating to polyester resinous compositions
IPC: C08F283/01
Filed: 1954-11-01
Abstract: An unsaturated polyester and a CH2 = C< compound of boiling-point at least 60 DEG  C. are catalytically copolymerized in the presence of a promoter selected from the group comprising guanidines, isomelamines, amidines, biguanides, guanylureas, pseudoureas, pseudothioureas and salts thereof.  The polyesters may be derived from maleic, fumaric, itaconic and aconitic acids with or without saturated acids, and dihydric alcohols with or without polyhydric alcohols.  Monomers specified are styrene, side-chain and ring-substituted halo and alkyl (e.g. methyl) styrenes and allyl compounds.  Catalysts which may be used are cyclohexanone and methyl ethyl ketone peroxides; 1-cyclohexanol-1-, t-butyl, paramenthane, pinane, diisopropylbenzene and cumene hydroperoxides, and t-butyl perbenzoate.  The promoters disclosed are dicyclohexyl guanidine, ethyl pseudothiourea hydrobromide and the hydrochlorides of benzamidine, acetamidine, laurylamidine, dicyclohexyl guanidine, phenyl biguanide, isopropyl biguanide and guanidine.  Inhibitors such as hydroquinone, pyrogallol, tannic acid, t.-butyl catechol, aniline and phenylene diamine may optionally be included.  The resinous compositions are useful for the impregnation of sheet material, such as paper, cloth or fibrous glass, in the production of laminated articles.  Dyes and pigments may also be present.
Patent GB-461208-A (GB)
Title: Improvements relating to ice rinks
IPC: F25C3/02
Filed: 1935-11-14
Abstract: 461,208. Making and maintaining icesurfaces. BURLEIGH, D. S. Nov. 14, 1935, No. 31532. [Class 29] An ice rink is provided with freezing pipes of D - cross-section resting upon planking b. The spaces between the pipes are packed with sand or concrete to the level c, and ice is formed to the level d by spraying water over the pipes.
Patent GB-1335136-A (GB)
Title: Electric induction generator systems for internal combustion engines having electronic ignition systems
IPC: H02K21/22
Filed: 1971-07-06
Abstract: 1335136 Generators for ignition systems ROBERT BOSCH GmbH 6 July 1971 [28 July 1970] 31591/71 Heading H2A A generator system for use with a motor cycle internal combustion engine having electronic ignition comprises a set of magnets M<SP>1</SP> mounted inside a cylindrical rotatable magnetic body 30 so that as they rotate they move past ends of (a) a magnetic core 29 carrying an A.C. winding 15 for charging a storage capacitor 11, and (b) two axially-spaced but radially-aligned limbs 38, 39 of a further core structure carrying a control winding for triggering an ignition firing thyristor 20, this winding comprising two portions 25<SP>1</SP>, 25<SP>11</SP>, one on each limb, and the voltages induced in these portions being arranged to cancel each other out except at that point in each revolution of the set of magnets M<SP>1</SP> at which an ignition firing pulse is required. Generation of the firing pulse is achieved by introducing an asymmetry into the magnetic structure at the required point in any of the following ways: (i) The upper part 40 of the polepiece of one pole M1<SP>1</SP> and the lower part 41 of the polepiece of an adjacent pole M2<SP>1</SP> may project into the interpolar gap Z so that at this angular position of the rotor 30 flux passes from one projection to the other via the two limbs 38, 39 and either an interconnecting yoke 46 or a magnetic hub 31 of the rotor. The yoke, if provided, may be T or H shaped (Figs. 13, 14, not shown). (ii) A magnetic projection (S1, Fig. 3, not shown) may be provided on the magnetic rotor hub 31 so that it momentarily introduces a flux path via one limb of lower reluctance than the flux path via the other limb and thus unbalances the voltages induced in the respective winding portions 25<SP>1</SP>, 25<SP>11</SP>. The radially-outer ends of the two limbs may be interconnected by a magnetic yoke (46). (iii) As an alternative to (ii), a recess cut in the hub will likewise momentarily unbalance the voltages (Fig. 7, not shown). (iv) As an alternative to (iii), the recess may be cut in one of the magnets M<SP>1</SP> (Fig. 10, not shown). In the case of (ii), (iii) and (iv), the projection/ recess may be tapered to increase the range of timing adjustment. Alternatively, a small projection/recess may precede a larger one, the small one being of such a size that it only causes a pulse of sufficient magnitude to fire the thyristor 20 to be generated when the rotor is rotating above a certain speed, so that when this speed is reached the ignition timing is suddenly advanced. In the case of (i) when no magnetic yoke 46 is being used, to prevent control pulses being generated if the rotor rotates in the wrong direction diodes are connected across or in series with the winding portions 25<SP>1</SP>, 2511, or auxiliary windings are provided, to suppress or cancel such undesired pulses (Figs. 16-18, not shown).
Patent GB-1278444-A (GB)
Title: Improvements in or relating to a radiation detector comprising a semiconductor device
IPC: H01L31/08
Filed: 1969-06-23
Abstract: 1278444 Semi-conductor radiation detectors PHILIPS GLOEILAMPENFABRIEKEN NV 23 June 1969 31614/69 Heading H1K A lithium-compensated radiation detector 1 of germanium (or silicon) is mounted on an aluminium plate 2 in a capsule closed by a plastics cover 3. Heat is extracted from the detector through the plate 2 and a stranded aluminium conductor 14 the remote end of which is joined to a copper termination 16. The termination is designed to plug into the end of the cold duct 19 of a cryostat. The capsule is supported within the main sealed box by a thin walled cylinder 6 provided with perforations to reduce its thermal conductance. A field-effect transistor (not shown) forming part of a pre-amplifier for the detector may be on a glass substrate 34 in thermal contact with the cooled plate 2. Other components (not shown) of the amplifier are mounted within the cylinder. The metal cap 9 of the box is attached by a pressurized indium seal to the base. The thinner part 13 of the cap through which radiation enters may be of a different metal (such as beryllium) welded to the rest of the cap. The detector may be positioned to some extent independently of the cryostat connection since the thermal termination 16 is mounted on two stainless steel tubes 20, 21 of low thermal conductivity one of which is corrugated to provide mechanical flexibility. Electrical connections to the detector and amplifier are taken to a plug 30 in the side of the box. Connections also extend through the side of the box from a tungsten, molybdenum and titanium complex filament energized when necessary during use of the detector to getter residual gases from the box. (Initial evacuation takes place through ducts 25 in the thermal connector leading to exhaust tube 17 which is pinch sealed after evacuation of the box). The lower face 33 of the box may be demountably indium sealed to a bracket forming part of the cryostat assembly.
Patent GB-1415291-A (GB)
Title: Display or presentation unit for jewellery
IPC: A47F7/02
Filed: 1971-07-06
Abstract: 1415291 Coated article K NEEDHAM and B S WOLF 25 Sept 1972 [6 July 1971] 31677/ 71 Heading B2E [Also in Division A4] A display or presentation unit comprises a base, a layer of resilient plastics material mounted on the base, the layer of resilient plastics material having slots formed therein and having synthtic fibres flocked onto the surface thereof remote from the base. The resilient plastics material may be expanded polystyrene or expanded polyethylene. The synthetic fibres may be flocked onto the plastics material by electrostatic spraying. The synthetic fibres may be nylon or polyester. The base may be of hardboard, plywood.
Patent GB-801273-A (GB)
Title: Improvements in the treatment of coal and similar substances
IPC: B03B9/00
Filed: 1954-11-03
Abstract: 801,273. Washing granular materials. HARVENGT, E. Nov. 3, 1954 [Nov. 23, 1953], No. 31842/54. Class 82(2) A wet separation of coal and other minerals is carried out by a sink/float process preceded by the removal of fine particles, and producing a float fraction of coals only and in sink fraction of shale and middlings; the sink being subjected to a combined treatment of alluviation and jigging to recover coals in the sink fraction and also to separate middlings and shales. The fine particles removed before sink/ float may be treated together with the sink fraction in the alluviation and jigging treatment. The fine particles are removed by dry and wet sieves D, Fig. 1, and the remainder of the coal (10 mm to 125 mm) separated in the heavy liquor bath A into pure coals B and sinks C. The sinks are drained at G, the heavy liquid being reconditioned as usual, and passed to a trough H with jigs I, J, evacuating shales and middlings respectively. These jigs have compensated suction. Coal is collected at L, oversize fractions being retained on screen K (coal) and screen M (middlings) and crushed at O for recirculation as shown. The various rinsing waters may be treated in known manner for recovery of valuable fines. A more elaborate circuit embodying the basic one described above, and a sink/float apparatus having a closed sinks wheel, are also disclosed. The alluviation apparatus is shown in Fig. 5 and comprises a trough 35 and jigs 37, 36. The former is shown with a rotating evacuation device 48 and the latter with a conveyer 47, but both can be of either type. An oscillating screen 42 and adjustable discharge device 43 are synchronized with the piston 38. A rotary suction valve 40 supplies compensating water to neutralize the suction stroke.
Patent GB-785738-A (GB)
Title: Improvements in and relating to friction clutches
IPC: B29C48/08
Filed: 1955-11-09
Abstract: 785,738. Centrifugal clutches. KUBICEK, J. Nov. 9, 1955, No. 32001/55. Class 80 (2). A centrifugal clutch comprises a split spring ring 7 with a friction facing 8 supported on a driving sleeve 1 for rotation therewith by projections 9 and adapted to engage frictionally on expansion with the internal surface of a driven pulley 11. A ring of segmental weights 3 are arranged in an annular groove 2 of the sleeve 1 and are adapted to be driven frictionally by an interfitting ring 6 to move outwards by centfifugal force against the spring ring 7. A spring 5 biases the weights 3 to the inner retracted position.