baber/WOPTO huggingface dataset:
Patent GB-916319-A (GB)
Title: Apparatus for electrical-discharge-machining
Inventor: WEBB ROBERT SOUTH
IPC: B23H1/00
Filed: 1960-11-24
Abstract: 916,319. Control of D.C. motors. ELOX CORPORATION. Nov. 24, 1960, No. 40478/60. Class 38 (3). [Also in Groups XXII, XXIX and XXXVI] In a control arrangement for a separately excited motor 42 positioning an electrode 10, Fig. 5, of an erosive spark discharge device, the direction of rotation and speed of the motor is controlled by the difference between the voltage drop across a resistor 48 in the anode circuit of a pentode 40 and the voltage of a source 46. In a modification, Fig. 6, the voltage across an anode resistor 70 is opposed by a source 74 in the base to emitter circuits of transistors 62, 64 of PNP and NPN type, respectively, connected in parallel. When the voltage across the resistor 70 equals the voltage of the source 74 both transistors are non-conductive and the motor is stationary. An increase of voltage across the resistor 70 causes a point 72 to become negative and transistor 62 will be rendered conductive to connect a source 66 to the motor 42 to cause downward feed of the electrode. Conversely, a reduction in the voltage across the resistor 70 causes the transistor 64 to conduct so as to connect a source 68 to the motor.
Patent GB-995063-A (GB)
Title: A substituted butylamine and salts thereof
IPC: C07C/
Filed: 1963-10-17
Abstract: The invention comprises dl-, d-, l-2-phenyl-3-methyl-butylamine and salts thereof with physiologically compatible acid and their preparation by reacting 2-phenyl-butanone-(3) with a methyl magnesium halide to form 2-phenyl - 3 - methyl - butanol - (3), converting this with a metal cyanide, sulphuric acid and a lower aliphatic monocarboxylic acid into 2-phenyl-3-methyl-butyl-(3)-formylamine, splitting off the formyl radical in acid or alkaline solution and, if desired, converting the base into a salt with a physiologically compatible acid and furthermore, if desired, converting the dl separated base into the di- and lforms.  The salts of the invention may be formulated as tablets for therapeutic use.  The compounds show anorexigenic activity.
Patent GB-863302-A (GB)
Title: Improvements in games of skill
Filed: 1959-12-04
Abstract: 863,302. Ball-throwing games. FORSHAW, W. Dec. 31, 1959 [Dec. 4; 1959], No. 41195/59. Class 132(2). In ball-throwing apparatus in which the player endeavours so to throw a ball C into a bucket A held in an inclined position on a stand B that it is retained therein, the bucket has at the lower part of its side wall an aperture a which communicates through a shoot b in the stand with a ball container or enclosure D. Each ball as it passes through the shoot may close a switch b<SP>3</SP> to actuate a counter D<SP>1</SP>.
Patent GB-1381379-A (GB)
Title: Reed relay memory circuit for bistable transistor circuit
IPC: H03K17/24
Filed: 1972-09-07
Abstract: 1381379 Power failure protection SQUARE D CO 7 Sept 1972 [27 Sept 1971] 41526/72 Heading G4A [Also in Division H3] A bi-stable transistor logic circuit has an associated latching type reed relay which if the supply fails is set while it is failing and restores the bi-stable circuit to its original state when the supply is being restored. The circuit may also provide a signal while the supply is failing and being restored and this may be used to prevent false operation of a counter, shift register or logic system of which the circuit forms part. The bi-stable circuit shown comprises cross-coupled NOR gates 28 a , 30 a . When the A.C. 20 fails a relay PC releases. Contact 70 closes to apply the decaying supply voltage to the base of a transistor 66, the collect of which applies a 0 level to one input of the bi-stable circuit via contact 60 of a reed relay 40. This does not change the state of the circuit. Contact 72 of the relay PC operates a further relay NC via transistor 68. Contact 78 completes the circuit of the reed relay coils 50, 52 so that it is switched by transistors 46, 48 to correspond with the bi-stable circuit and hold the state during the supply failure. Switching of the reed relay does not take place during normal operation. When the supply falls below the threshold value of a Zener diode 76, transistor 68 goes off, releasing relay NC so that its contact 72 disconnects the reed relay coil. When the supply is restored a negative signal is produced on lead 26 until the supply reaches - 12 V. This, via transistors 64 and 66, applies a Fig. 1 signal to contact 60 of the reed relay to restore the bi-stable circuit to its previous state. Above- 12 V transistor 64 goes off and contact 70 is opened so that the reed relay contact receives a 0 signal allowing the bi-stable circuit to be switched normally. At - 12 V the Zener diode current turns transistor 68 on again and relay NC is not operated as contact 72 is open. During the fourth part of the decay and restoration of the supply a terminal 88 is connected by resistor to the supply to provide a failure indication.
Patent GB-1002411-A (GB)
Title: Improvements in or relating to pulse generators for electric fences
IPC: H05C1/00
Filed: 1961-11-21
Abstract: 1,002,411. Supply systems for electric fences. V. J. BUNDGAARD. Nov. 21, 1961 [Nov. 23, 1960], No. 41660/61. Heading H2H. In a pulse generating system for an electric fence 11 comprising A.C. supply 1, 2, voltage increasing circuit 3, 4, 5, 6, charging resistor 7, condenser 8, pulse transformer 9 and periodically-operating contact device 12, the condenser 8 is charged to a voltage of p. 300 volts (where p is substantially greater than 1 but lower than 10) and the step-up ratio of transformer 9 has a value lower than 10. The system is suitable for supplying fences over a certain length when regulations require that the no-load voltage must not exceed a statutory value. Theoretical aspects of the circuit are discussed and a comparison is made with the prior art, Fig. 1 (not shown).
Patent GB-1348218-A (GB)
Title: Insecticidal active thiophene phosphorus derivatives
IPC: A01N57/16
Filed: 1972-08-08
Abstract: 1348218 Pesticidal phosphorus containing thiophene derivatives STAUFFER CHEMICAL CO 8 Sept 1972 [9 Sept 1971] 41740/72 Headings C2P and C2C Novel compounds of Formula I where R is C 1-4  alkyl and R 1  is C 1-4  alkyl or alkoxy may be prepared by reacting thiophen- 2-yl-glyoxylonitrile oxime sodium salt with a suitable dialkyl thiophosphoryl halide or O- alkyl alkane phosphonic acid halide. The starting material, thiophen-2-yl-glyoxylonitrile oxime sodium salt, may be prepared by reacting sodium methoxide with a mixture of thiophen-2-yl-acetonitrile and isoamyl nitrite in a solvent. The compounds of Formula I have insecticidal properties and may be used as the active ingredients in conventional pesticidal compositions.
Patent GB-1029817-A (GB)
Title: Internal-combustion engine crankcase ventilation systems
IPC: F01M13/04
Filed: 1962-11-05
Abstract: 1,029,817. Crankcase ventilating. O. F. JONES. Nov. 5, 1962 [Nov. 6, 1961], No. 41817/62. Heading F1B. The flow of gases from a crankcase to an intake manifold is controlled by a suction operated slide valve 20, Fig. 6, of triangular cross-section which co-operates with a restriction to reduce the flow as manifold suction increases. In Fig. 6 the valve is mounted in the cover of a liquid trap and filter 62 connected by a pipe 78 to the crankcase and through a connection 88 to the intake manifold. The gases enter at 82 and flow upwardly past a baffle 80, e.g. of zinc, which reacts with acids in the gases, liquid droplets in the gases being trapped at 86. The remaining gases flow to the valve unit 20 through a filter 72 supported by a perforated screen 70 and clamped between flanged parts of the cover 60 and chamber 62, which is of translucent material. In a modification, Fig. 9 (not shown), the crankcase gases flow through a baffle filter 98 to a separate valve unit 20 similar to that of Fig. 6 and the baffle may be cut out by a valve controlled by-pass 110.
Patent GB-1444520-A (GB)
Title: Method of enveloping articles with thermoplastic strip material
IPC: B29C70/72
Filed: 1974-10-01
Abstract: 1444520 Packaging PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 Oct 1974 [4 Oct 1973] 42603/74 Heading B8C [Also in Division B5] An article 21 is enveloped in two strips 2 of thermoplastic material containing minuscule gas bubbles by heating the facing surfaces of the strips to above the melting or softening temperature of the material while the remaining parts of the strips remain below this temperature, and pressing the two strips onto the article and against each other. The strips are preheated in a furnace and then the facing surfaces are passed over heating elements 5 before being passed into a mould 17. Closure of unheated dies 24 cuts off the ends of the strips and compresses the ends about the article 21 which may be a capacitor or semi-conductor. The strips may be of polypropylene containing at least 10% and preferably 25% minuscule bubbles. 150 microns thickness of the strips may be melted by the elements 5.
Patent GB-1193325-A (GB)
Title: Window for High Speed Aircraft
IPC: B64C1/14
Filed: 1967-09-20
Abstract: 1,193,325. Aerials. DORNIER SYSTEM G.m.b.H. 20 Sept., 1967 [1 Dec., 1966], No. 42763/67. Heading H4A. [Also in Division C1] A radome is made of monocrystaline corundum having its crystal c-axis parallel to the surface.
Patent GB-1472616-A (GB)
Title: Sheet stacking bin
IPC: B65H31/08
Filed: 1974-10-03
Abstract: 1472616 Delivering sheets EASTMAN KODAK CO 3 Oct 1974 [4 Oct 1973] 42968/74 Heading B8R Sheets are delivered in turn into a bin 14, Fig. 3 and 5, over a lip 20 which drives them upwardly against a member 16a, a deflector tab 22 of which directs them downwardly on to a stack on a shelf 16, each sheet being guided and avoided by a flexible depressor 24 depending from the member 16a against a stop plate 28, which is slightly inclined to the sheet path so that one corner of the sheet abuts the plate 28 and the sheet skewed so as to abut a side stop plate 30 or a vertical bar-tape abutment 32 secured thereto. A plurality of bins 14 are mounted in an assembly, each shelf 16 acting as the base of one bin and the top of an adjoining bin, the member 16a being the top of the uppermost bin.
Patent GB-1236827-A (GB)
Title: Bolt and method of making the same
IPC: B21K25/00
Filed: 1968-09-12
Abstract: 1,236,827. Making bolts; jointing. PLASTIC METAL PRODUCTS CORP. 12 Sept., 1968 [28 Sept., 1967], No. 43390/68. Headings B3A and B3V. [Also in Division F2] A method of making a bolt comprises threading one end of a straight shank 10, disrupting the continuity of the surface of the other end of the shank, placing on the latter end of the shank a head 14 having an axially recessed shoulder portion 18, and applying external radially inward forces against the shoulder to cause the metal thereof to flow into the surface disruptions thereby permanently affixing the head to the shank. The surface disruptions may comprise knurling 22 or longitudinal fluting (34), Fig. 5 (not shown). The shoulder 18 is formed to a hexagonal or square cross-section as the head is being secured to the shank. The shank is made from steel rod and the bolt head is preferably formed by die casting, being made from any desired metal, e.g. iron or ferrous alloys, zinc, brass, copper, steel or aluminium.
Patent GB-1320026-A (GB)
Title: Rotary fluid-pressure machine such as a pump or motor
IPC: F04C2/10
Filed: 1970-09-11
Abstract: 1320026 Rotary positive-displacement machines DANFOSS AS 11 Sept 1970 [20 Sept 1969] 43548/70 Heading F1F In a machine such as a gerotor-type pump, an annular sealing-element 3 is held against the gear ring 11 and wheel 12 by pressure applied to a chamber 36 through a passage 35 from a groove 25, which to balance the axial pressure in an outlet, or "pressure", groove 23 is identical in shape and axially aligned with the latter. To balance the radial pressure on the high pressure side of the ring 11 a recess 33 and a passage 32 connects a gap 34 between said ring and a housing ring 4 to the groove 23. Leakage fluid collected in a chambers 18, 19 and annular grooves 29, 31 escapes to an inlet, or "suction", groove 22 through a passage 26, a passage 27 and groove 24, and passages 30, 28. To balance the axial pressure in the groove 22, the groove 24 is identical in shape and axially aligned with the groove 22. Bearings 14, 15, 16 are provided as shown. (For Figures see next page)
Patent GB-1088996-A (GB)
Title: Improved folding chair
Inventor: HALL WILLIAM JOSEPH
IPC: A47C17/13
Filed: 1964-10-26
Abstract: 1,088,996. Bed settees. W. STEEL & CO. Ltd. Oct. 14, 1965 [Oct. 26, 1964], No. 43579/64. Addition to 887,336. Heading A4J. A folding chair of the type disclosed in the parent Specification has end section 11 connected to centre section 10 by a pair of linkage members 13, 14 which enable it to be moved between its two positions while maintaining the same surface uppermost in both such positions.
Patent GB-1022817-A (GB)
Title: Parking arrangements
IPC: G07F17/14
Filed: 1964-10-26
Abstract: 1,022,817. Coin-freed parking. H. I. A. RUDBERG. Oct. 26, 1964 [Oct. 31, 1963; April 9, 1964], No. 43644/64. Heading G4V. A garage has a parking meter in each parking space, a gate preventing removal of a car until a fee shown on the meter is paid, and means for indicating the presence of a car, the meter receiving timed impulses from a central location whereby the time of parking may be indicated. In the figure, the meter is mounted on a resilient connection 19, so as not to be damaged by impact, and detects the presence of a car by interruption of a light beam from source 13, reflected by mirror 15 to a photo-cell 14. The light source is energized periodically by the timing impulses, say every minute, and the photo-cell and its circuitry are energized at the same time, but for a shorter period wholly within the period of energization of the source. Alternatively, the presence of a car may be detected by mechanical closure of electrical contacts by the car, or by a switch sensitive to the iron mass of the car. A counter 8 records the minute impulses when a car is parked, and every, say, thirty minutes, advances a feecharging counter 3 one step. On collection of the car, the driver inserts coins into slot 2, to advance a counter 4. When counters 3 and 4 tally, the gate 12 is lowered, and both counters are zeroized. The gate is raised after three minutes if the car is not removed. Counters 10 and 11 limit the fee to preset maxima for day parking and night parking respectively. The central location has lamps indicating those parking spaces which are vacant, those which are charging maximum fees, and when a meter has been impacted.
Patent GB-922303-A (GB)
Title: Improved rotary latch
Inventor: HUMBLE FRANCIS EDWARD
IPC: E05C3/04
Filed: 1961-12-06
Abstract: 922,303. Latches. ALFRED IMHOF Ltd. Dec. 6, 1961, No. 43765/61. Class 44. A rotary latch comprises a spindle 1 extending through a closure panel P, a knob 3 fixed to one end of the spindle, a latch member 4 secured to the other end and a coil spring 8 which is mounted in torsion to bias the latch into an operative position, while its compression characteristics bias the latch towards the panel P. The spring is assembled by inserting leg 9 into an aperture 10 in the knob 3 and leg 11 through an aperture 12 in the panel P. The latch member is provided with a nose portion 16 which catches upon the latch plate L of the frame F. The latch member 4, which may be made of nylon, is provided with stops which engage the extension 21 of the spring to prevent complete rotation of the knob 3.
Patent GB-1537534-A (GB)
Title: Method and apparatus for compacting fines of magnesium or magnesium alloy
IPC: C22B26/22
Filed: 1976-10-22
Abstract: 1537534 Compacting scrap metal; making magnesium billets TELEDYNE INDUSTRIES Inc 22 Oct 1976 [23 Oct 1975] 43917/76 Headings B3H and B3A [Also in Division B5] A method of compacting magnesium or magnesium alloy chips or scraps comprises pressing the chips or scraps in a controlled environment to concentrate them into a selfsupporting pellet. Magnesium chips, e.g. turnings, are fed into a chamber 22 via an opening 24 and forced by a piston 26 at low pressure against an end closure or door 30, which is not airtight. The majority of the air is expelled from the chamber and the chips are lightly compacted together, the pressure in the chamber not exceeding 15,000 p.s.i. The piston is withdrawn and a mixture of SF 6  and CO 2  is fed into the chamber from cylinders 52, 54. The piston 26 is advanced again and the chips are compacted at a pressure of about 40,000 p.s.i. Cold welding only takes place randomly owing to the presence of oxides, cutting oils and other contaminants and higher pressures will not increase the amount of welding, When compaction is completed, the load on the piston 26 is relieved, a lock 34 is released and the door 30 opened. The piston then ejects the resulting pellet. The pellets are stacked in a melting pot and melted in a controlled environment, preferably a mixture of SF 6  and CO 2 . Alternatively the pellets are placed in a basket and suspended over molten metal in a melting pot to melt the pellets gradually, again in an atmosphere of SF 6  and CO 2 . Fluxes may be used in melting, but are not preferred. An alternative construction of compression chamber, Fig. 3 (not shown), is pivotable about an axis transverse to its longitudinal axis and is loaded through its end door (30a) rather than through a loading port in its side wall. When loaded, the chamber is pivoted through 180 degrees so that the charge is compressed against the door. The vertical orientation of the chamber during loading and compaction provides a more uniform compaction of the charge.
Patent GB-1048067-A (GB)
Title: Improvements in or relating to crosslinking of polymers
IPC: B29C35/08
Filed: 1965-10-19
Abstract: A method of cross-linking polymers comprises treating the polymer with carbonyl sulphide gas under conditions such that the gas diffuses into the polymer and exposing the treated polymer to ultra-violet radiation having sufficient energy to cause dissociation of carbonyl sulphide for a time sufficient to increase the degree of cross-linking of the polymer.  The polymer may be polyethylene, polypropylene, an ethylene/butene copolymer, polyvinyl chloride or polyvinylidene chloride, and may be thermoplastic or partially cross-linked. Carbonyl sulphide gas may be bubbled through the molten polymer, or the polymer in film form may be contacted with the gas, preferably under superatmospheric pressure to promote diffusion. Radiation may be provided by a mercury or cadmium vapour lamp.  Many examples of treating films of the above polymers by the method of the invention are given. The products may be used in electrical insulation and shrinkable films for packaging.
Patent GB-1521279-A (GB)
Title: Microfilm copying machine
IPC: G03B27/62
Filed: 1975-10-28
Abstract: 1521279 Photographic copying apparatus BELL & HOWELL CO 28 Oct 1975 [15 Nov 1974] 44326/75 Heading G2A A photographic flow-type microfilm copying machine has a scanning zone 34 between a document input feed mechanism 10, a document output feed mechanism 40; a document transport mechanism comprising a transparent plate 30 with a flat face 31 in the focal plane and to which the line 33 is perpendicular; a pair of transport rollers 20, 22 between the plate 30 and the input feed mechanism 40, the nip 27 between rollers 20, 22 being forward of face 31, and the plane containing the axes 21, 23 of the rollers 20, 22 converging on the perpendicular 33, whereby each document 50 transported through the nip 27 of the rollers is directed towards and against the face 31 as it is transported through the scanning zone so that it lies therein. To assist in directing the document 50, the plate 30 may also have bevelled face 32. The document is fed in by a endless belt 16 driven by rollers 11, 12, 13, 20, 22 and guided by guide-plate 14. Roller 20 is spring-urged against roller 22, and both rollers are driven to carry the document 50 over plate 30, against which it is urged by air from a blower 55. The document is illuminated on both sides by lamps 55 and photographically recorded by the flow method by means of a camera and mirrors, as described in US Specification 3342100, Document 50 then passes between the nip 64 of driven rollers 60, 62. The plane containing the axes 21, 22 of rollers 20, 22 intersects perpendicular 33 at a point A, and the plane containing the axes 61, 63 of rollers 60, 62 intersects the perpendicular 33 at a point B further from plate 30 than point A; this assists movement of document 50 over surface 31 of plate B to the nip 64. After passing rollers 60, 62 the document is fed by a guide-plate 47 and a belt 45 driven by rollers 41, 42, 43, 44, 60, 62 to fall into a tray 53.
Patent GB-1131089-A (GB)
Title: Closure for vehicle compartments
IPC: B62D25/10
Filed: 1967-09-29
Abstract: 1,131,089. Vehicle bodies. MASSEYFERGUSON SERVICES N.V. 29 Sept., 1967 [8 Oct., 1966], No. 44336/67. Heading B7B. An engine compartment hood 5 is provided with rollers engaging tracks at each side of the hood so that the hood is opened by sliding it longitudinally until the rollers 8 meet the stops 9 and then pivoting it, the rollers 7 passing through slots 10 in the track.
Patent GB-1403577-A (GB)
Title: Method of transferring an electrostatic charge pattern
IPC: G03G15/18
Filed: 1972-09-27
Abstract: 1403577 Transferring electrostatic latent images TOKYO SHIBAURA ELECTRIC CO. Ltd. 27 Sept 1972 [30 Sept 1971] 44569/72 Heading G2H An electrostatic latent image is formed on a photo-conductive member, then transferred to a copy sheet by electrical discharges following application of a potential across the combined thicknesses of the photo-conductive member and copy sheet, the voltage applied to the back of the photo-conductive member having the same polarity as the latent image and the back of the copy sheet being connected to earth. Preferably the photoconductive member consists of a conductive substrate and a layer of selenium or zinc oxide, and the copy sheet consists of a paper base, a lowresistance layer of a conductive polymer and a dielectric layer of acrylic resin. After transfer the copy sheet is developed with a particulate toner and thermally fixed. The connection to earth of the copy sheets may be by way of a travelling conductive roller.