baber/WOPTO huggingface dataset:
Patent GB-1270995-A (GB)
Title: Improvements in or relating to motor vehicle automatic change-speed transmission apparatus
IPC: F16H61/02
Filed: 1969-07-25
Abstract: 1,270,995. Change-speed control. HONDA GIKEN KOGYO K.K. 25 July, 1969 [31 July, 1968], No. 37497/69. Heading F2D. In an automatic change-speed motor-vehicle transmission in which TV and governor pressures act differentially on a shift valve 3 for automatically selectively engaging one or other of two clutches 1, 2 for low or high speed ratio, the TV pressure is arranged to increase in two stages during increase in engine torque demand, the first stage increasing gently and the second stage comparatively rapidly (as illustrated by liners P 1  and P2 in Fig. 2) whereby the changespeed point is deflected i.e. occurrs at a lower vehicle speed as illustrated in Fig. 4 (not shown) than would occur with a simple linear increase in TV pressure as indicated by p in Fig. 2. The two-stage TV pressure (P 1 , P 2 ) is controlled by a valve 5, the piston 13 of which is connected to accelerator pedal linkages 15, 18 via two nested springs 16a, 16b that are compressed successively during depression of the accelerator pedal, to give a two-rate spring effect for providing the two-stage TV pressure from the pump line pressure supply at 7, via balance and bleed ports 14, 11.
Patent GB-1060023-A (GB)
Title: Focusing circuit for cathode ray tube
IPC: H04N3/233
Filed: 1965-09-03
Abstract: 1,060,023. Cathode-ray tube circuits; transistor amplifiers. AMP Inc. Sept. 3, 1965 [Sept. 18, 1964], No. 37640/65. Headings H3T and H4T. Dynamic focusing of the beam of a CRT is effected by superimposing on a constant D.C. voltage (1900 to 2500 volts), supplied via diode CR2 and lead 13 to focus the beam at a single point in the scan, a further D.C. voltage A having a waveform suitable for correct focusing of the beam at other points in the scan. To produce the waveform A an A.C. waveform E, generally of parabolic shape, is supplied via a voltage amplifier 54, the output of which is referenced relative to zero potential by a differential amplifier 50 operating as a D.C. restorer, to a power amplifier 28 from which a D.C. voltage of parabolic waveforms D is supplied to the primary of a transformer T gated by transistors Q 21 , Q 22  to which switching pulses are supplied over leads 22, 24. The voltage across the transformer secondary, consisting of the alternating pulse waveform C, is then rectified in 18 to produce waveform B which is then smoothed in 12 to produce waveform A.
Patent GB-369211-A (GB)
Title: Improvements relating to latticework masts or posts
IPC: E04H12/10
Filed: 1930-12-13
Abstract: 369,211. Latticework masts. HAMMEL, V. F., 433, West 21st Street, New York, U.S.A. Dec. 13, 1930, No. 37649. [Class 20 (i).] A latticework post is formed of stiffened uprights bound together by spirally wound or zig-zag reinforcing bars, the latter being welded to each other and to the posts at the points of intersection. The spiral bracing C<1>, Fig. 6, may be disposed interiorly or exteriorly to the uprights B, or on both sides. The uprights may comprise angular, tee, or channel section bars, and with angle-section bars the apices may be disposed interiorly or exteriorly of the post. The uprights may be braced at intervals by rings F<1>, Fig. 7, or these rings may be used at the joints of the post sections. The uprights on opposite sides may be cross braces by looping E, Fig. 14. Some of the uprights may be stopped short of the topmost section of the post. The zig-zag bracings a<1> may simply abut against each other-or cross each other in the case of angle section uprights, Fig. 19, while in case of T-section uprights the bracing abuts on the webs at d<2>, Fig. 21, the abutting portions being welded together. The uprights may be received into grooves formed in a mandrel A and the helical bracing C<1> welded by tools C, Fig. 5, and the post then stripped from the mandrel.
Patent GB-523265-A (GB)
Title: Improvements in and relating to charging devices for mechanical furnaces comprising a throwing shovel
IPC: F23K3/16
Filed: 1938-12-29
Abstract: 523,265. Delivering fuel to furnaces. UNGARISCHE RADIATOREN FABRIKS AKT.-GES., BECK, S., and FORGO, L. Dec. 29, 1938, No. 37782., [Class 78 (i)] In a charging-device for feeding fuel to furnaces, in which a reciprocating throwing-device projects the fuel in the opposite direction to the movement of the grate, baffle surfaces are fitted to promote even distribution of the fuel over the width of the grate : Fig. 1 shows a mechanicallyreciprocated hopper door b feeding fuel periodically to the thrower d which delivers it to the far end f of the moving grate, the ash being finally deposited in the receptable h. Fig. 3 shows a pair of V-shaped baffles o<SP>1</SP>, o<SP>2</SP> which distribute the delivery from the door b towards the sides of the thrower d. Fig 5 shows the thrower provided with backwardlybent wings d<SP>01</SP>, d<SP>02</SP> which may be used either with or without the baffles shown in Fig. 3.
Patent GB-1475027-A (GB)
Title: Process for the preparation of trans-epoxy-cis alkenes
IPC: C07D301/26
Filed: 1975-09-17
Abstract: 1475027 Epoxy unsaturated esters ROUSSEL UCLAF 17 Sept 1975 [18 Sept 1974] 38235/75 Heading C2C Trans-epoxy-cis-alkenes of formula wherein alk represents a straight or branched chain alkyl radical (1-6C) and m represents 3, 4 or 5, are prepared by partially hydrogenating a trans-epoxy compound A partially deactivated metallic catalyst such as palladium on barium sulphate partially deactivated by quinoline, or Raney nickel or palladium on calcium carbonate partially deactivated by lead acetate may be used. An example describes the preparation of ethyl 3- oxo-trans-8,9-epoxy-cis-6-tetradecanoate from ethyl trans - 8,9 - epoxy - 3 - oxo - 6 - tetradecynoate. The latter is prepared from the reaction of α-chloro-heptonal with a magnesium derivative of propargyl alcohol and the resulting 5 - chloro - 4 - hydroxy - 2 - decynol converted to 4,5-epoxy-2-decynol, then 1-bromo-trans-4,5- epoxy-2-decyne which is reacted with ethyl acetyl acetate to obtain the tetradecynoate.
Patent GB-1361470-A (GB)
Title: Humidifying air with steam
IPC: B01D19/04
Filed: 1971-08-14
Abstract: 1361470 Humidifier KOMBINAT LUFTUNO KALTETECHNIK VEB 14 Aug 1971 38260/71 Heading B1R A steam-air humidifier is provided with a feedwater entry pipe 3 and an outlet pipe 5 for salt enriched water, a metering device 6 for feeding chemicals from a container 11 to the humidifier via pipes 10 and 12, and a switch 14 responsive to the water level in the humidifier for operating a magnetic valve 4 in the outlet pipe 5 for discharge of the salt enriched water when the water level falls to a predetermined level, and a magnetic valve 2 in the entry pipe 3 also controlled by the switch 14. The switch 14 is connected to a switching relay 16 which controls a time delay relay 19 whereby the valves 2 or 4 may be operated to supply fresh feedwater or discharge salt enriched water respectively. The metering device 6, communicates with the source of feedwater via a pipe 7 such that when the feedwater passes into the humidifier the metering device charges a predetermined amount of chemicals into the humidifier, Figs. 2, 3 and 4, (not shown). The chemical additives consist of at least one inorganic or organic acid or salt which form water-soluble salts with the hardness forming salt in feedwater. Examples are given.
Patent GB-1518349-A (GB)
Title: Motorized wheelchair
IPC: A61G5/04
Filed: 1975-09-18
Abstract: 1518349 Motorized wheelchairs WILHELM MEYER 18 Sept 1975 38300/75 Heading B7H The rear wheels 12 of a motorized wheel chair are mounted on stub shafts 18 of drive mechanism each comprising an electric motor 16 and multi-stage reduction gearing 19. As illustrated, the gearing 19 includes toothed wheels 32, 34, a toothed belt 23 and gear wheels 36, 38, 39, 40. The drive mechanisms may each include a brake 42.
Patent GB-1237777-A (GB)
Title: Method and apparatus for forming articles from sheet or tubular material
Inventor: JOHNSON HERBERT GUIL
IPC: B29C43/12
Filed: 1968-08-12
Abstract: 1,237,777. Sheet forming. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 12 Aug., 1968 [14 Aug., 1967], No. 38476/68. Heading B5A. [Also in Division B3] Sheet material W is formed between a porous die 22 located within a housing 20 and an elastic diaphragm 40 peripherally clamped between the die and a closure base 21 itself secured to the housing by piston-operated bolts 30. The diaphragm and sheet are separated by a ring 50 and are forced into the die to effect the forming by pressure fluid introduced behind the diaphragm through pipe 46. After the forming, the sheet is separated from the die and the diaphragm by fluid introduced through ducts 23 and flexible tube 56, respectively. During or after the forming the sheet is peripherally severed by a pistonoperated annular blade 51 and during the forming the central part of the sheet is compression moulded into a cavity in the die by a plunger 57. Local differences in thickness in the finished article are produced by using a locally thickened diaphragm or sheet or both, or by differentially heating the sheet or diaphragm or both, by providing the sheet with cut-out portions, or by locally heating the sheet or diaphragm or both during the forming. The sheet may comprise one or more layers and may consist solely of plastics layers or metal layers or a combination of both. Planar and tubular blanks may be formed if desired.
Patent GB-1145590-A (GB)
Title: Electric toothbrush
IPC: A61C17/34
Filed: 1967-08-22
Abstract: 1,145,590. Electric toothbrushes. SUNBEAM CORP. 22 Aug., 1967 [10 Oct., 1966], No. 38569/67. Heading A4K. An ejector sleeve 50 is operated, on depressing button 61, to release brush member 21 from its locked position, on an oscillating drive shaft (27). Downward pressure on the button 61 pivots lever (60) about its trunnions 62, so that forks (69), 70 lift the sleeve 50 and force the resiliently-urged projections 43 out of their retaining groove (38) in shaft (27). A flexible rubber seal 32 is provided for shaft (27).
Patent GB-857252-A (GB)
Title: Vacuum actuated tractor-trailer braking system
IPC: B60T13/58
Filed: 1958-12-01
Abstract: 857,252. Fluid-pressure brakes. BENDIX CORPORATION, [formerly BENDIX AVIATION CORPORATION]. Dec. 1, 1958 [Dec. 31, 1957], No. 38711/58. Class 103 (1). A vacuum actuated tractor-trailer braking system of the type described in Specification 726,760 is modified to include a shut-off valve D on the tractor and a normally-open check valve 34 on the trailer. The valve D comprises a casing 58, 60, 62 divided into chambers 46, 48, 50, 52, 54 respectively connected to control valves 26, 40, valve C controlling vacuum supply to trailer brake units A 1 , A 2 , vacuum source 16 on the tractor, trailer vacuum reservoir 30, and to valve 96 communicating vacuum or atmospheric pressure to chamber 54; the chambers 46, 48 and 50 are connected by ports 70, 72 closed by members 74, 80 under the action of springs 78, 86, respectively. A flexible diaphragm 66 separates chamber 54 from atmosphere and supports a tubular member 90 biased by spring 92 against a seat 94 in cover 68. Normally, the trailer brakes are applied by valve C by decreasing the vacuum in line 36 below that in line 32 by operating control valves 40 or 26 and shuttle valve 38; in an emergency air is supplied to chamber 54 by valve 96 to raise diaphragm 66, normally held in the shown position by vacuum in chamber 54, to admit air to line 36 via members 90, 80 and chamber 48. Should a leak occur in the trailer line 32 or 36, air will flow through valve D to lower the vacuum in the tractor system and in chamber 54, when the pressure increases above 12 inch of mercury, springs 78, 86, 92 will raise diaphragm 66 and allow valve member 74 to engage seat 76; if the leak is in trailer line 36, valve member 74 prevents further vacuum decrease in the tractor system and the rise in pressure in trailer line 36 operates valve C to apply the trailer brakes; if the leak is in pipe 32, then diaphragm 66 rises until valve member 80 separates from member 74 to supply atmospheric pressure to line 36 via members 80, 90 to operate valve C. In Figs. 3-5, not shown, the control valve 96 is modified to have charging, running and emergency positions in which the valve will respectively communicate vacuum to chamber 54, isolate vacuum and atmospheric pressures from chambers 54 and communicate atmospheric pressure to chamber 54; the chambers 52 and 54 are connected by an open port to operate the diaphragm in case of a leakage in line 32 when the control valve is in the " run " position.
Patent GB-1156341-A (GB)
Title: Improvements in or relating to Seed Drills
Inventor: BAILEY ALFRED JOHN
IPC: A01C5/06
Filed: 1965-09-10
Abstract: 1,156,341. Seed drills. MASSEY-FERGUSON-PERKINS Ltd. 24 Aug., 1966 [10 Sept., 1965], No. 38838/65. Heading A1D. A seed drill is provided with a coulter assembly comprising a furrow opening device 13 mounted on a drag bar 11 which is pivotally attached to the drill so that when the furrow opener 13 is in operation the drag bar 11 extends rearwardly and upwardly relative to the direction of travel of the drill. A rotatable disc 20 cuts a slit in the soil and the furrow opener comprises two angled discs 15 mounted on a device which provides ducts for fertilizer and seed fed down tubes 17, 18. A press or depth control roller may be mounted behind the furrow opener 13.
Patent GB-1086503-A (GB)
Title: Process for the hydration of cycloalkenes and cycloalkanes
IPC: C07C35/29
Filed: 1964-09-24
Abstract: Cyclic alcohols are prepared by hydrating compounds of general formulae <FORM:1086503/C2/1> <FORM:1086503/C2/2> <FORM:1086503/C2/3> wherein each R1 is hydrogen or an organic radical linked to the cyclic nucleus through a carbon atom of the radical, but R1 cannot be an alkoxyl group, in the presence of water at 50 DEG  to 200 DEG  C. and in the presence of a synthetic cation exchange resin catalyst consisting of an aryl hydrocarbon skeleton having mineral acid groups attached thereto.  R1 may be alkyl, alkenyl, aryl, cycloalkyl, cycloalkenyl carbonyl, cyano or acyl and the other valences not occupied by R1 may be satisfied by any substituent which does not alter the characteristics of the double bond susceptible to hydration and many examples are given. The cation exchange resins used are conventional sulphonated or phosphonated synthetic aryl cation exchange resins and catalysts having macroreticular structures are also used.  Preferred catalysts are sulphonated cross-link polymers of styrene and copolymers of styrene and divinyl benzene and pressures of 0 to 150 p.s.i.g. may be used. The reaction may be carried out by batch or continuous methods and in a preferred method the starting material and water mixture is vaporized and circulated around the exterior of a vertical tubular reactor containing a fixed bed of catalyst material, thereby heating the catalyst through which the condensate percolates downwardly, the product being taken off at the bottom of the reactor.
Patent GB-1169253-A (GB)
Title: Improvements in or relating to compatible vestigial (asymmetrical) side-band transmitter arrangements
IPC: H03C1/60
Filed: 1967-08-23
Abstract: 1,169,253. Single sideband modulation. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 23 Aug., 1967 [30 Sept., 1966], No. 38906/67. Heading H3R. A compatible single sideband transmitter  comprises a logarithmic unit In to which the input signal is supplied and which feeds two channels, the first comprising a low-pass filter T1, an exponential unit exp, a second low pass filter T2 and a modulator AM supplied with a carrier #1, and the second comprising a high-pass filter H1 feeding a compatible single sideband modulator KEB operating on a carrier #2; and the outputs of the two channels provide the two inputs to a modulator M1  which provides the required output on a carrier frequency #1 + #2, the difference frequency #1-#2 being suppressed. The compatible single sideband modulator KEB may comprise a mixer (M3, Fig. 3, not shown) to which the input is fed through an exponential unit (exp 2 ) and through a second path comprising a quadrature unit (Q) and a cosine unit (COS), the output of the mixer being fed through a low-pass filter (T3) to a modulator (EB) where it is combined with a carrier wave.
Patent GB-1235316-A (GB)
Title: Improvements in and relating to strapping machines
IPC: B65B13/22
Filed: 1968-08-14
Abstract: 1,235,316. Sealing. SIGNODE CORP. 14 Aug., 1968 [5 Sept., 1967], No. 38925/68. Heading B6P. [Also in Divisions B8 and F2] A bundling machine for wrapping strapping material around a package (see Division B8) includes means to apply seals (85) to overlapped portions of the tensioned material. Metal seals (85), Fig. 1 (not shown), are fed (see Division B3) to a sealing mechanism (50) which is freed for operation by a latch which is released when jaws (73), (74), Fig. 2 (not shown), move to hold the overlapped portions of material. A piston (94) and cylinder (92) assembly drives a ram (98) to which are pivoted jaws (99), (101) via linkages (102), (103). Upon advance of the ram (98), the jaws (99), (101) close to crimp a seal (85) around the overlapped portions of the material.
Patent GB-1219720-A (GB)
Title: Means for producing fogged films
IPC: G03B15/08
Filed: 1969-08-04
Abstract: 1,219,720. Photographic apparatus. BENDIX CORP. Aug.4, 1969 [Aug.22, 1968], No.38955/69. Heading G2A. Photographic apparatus for producing fogged films comprises a linear fluorescent lamp 1, a variable opening aperture 6, a cylindrical lens 11 in alignment therewith, a mask 13 having an elongated opening 12 therein, a film 14 movable with respect to the opening and in register therewith, and a synchronous motor 15 for simultaneously varying the aperture 6 and moving the film 14 with respect to the opening 12. A mask 2 having an opening 3, a collimator 4 and a diffuser 5 are provided between the aperture 6 and the lamp 1 to provide uniform illumination over the aperture 6 which is in a frame 7. A three dimensional cam assembly 8, driven from the motor 15 by means of a belt 16, engages a plurality of spring loaded cam followers 9 which are operative in register with the aperture 6 to vary its opening, there being a flexible interpolating band secured to the followers 9 to smooth the transition from each follower to the adjacent one. The lens 11 permits an accurate transformation of cam profile into intensity of exposure along the line image formed on the film 14. After exposure, the film 14 is developed.
Patent GB-912191-A (GB)
Title: Improvements in or relating to accommodation ladders
IPC: B63B27/14
Filed: 1960-11-15
Abstract: 912,191. Accommodation ladders. MAATSCHAPPIJ TOT VERWERVING EN EX. PLOITATIE VAN DAVITOCTROOIEN DAVIT-CO. N.V. Nov. 15, 1960 [Nov. 18, 1959], No. 39254/60. Class 20 (2).  An accommodation ladder of the type having self-horizontally adjusting steps journalled in bearings 7, is provided with an additional supporting steel tube 3. Bracing members 4 with flanges 5, 6 bent at right angles are fixed to the stiles 1 and the supporting member 3. More than one supporting member 3 may be used.
Patent GB-1357188-A (GB)
Title: Hydrogen-consuming process for conversion of a hydrocarbon charge stock into lower-boiling hydrocarbon products
IPC: C25B11/10
Filed: 1971-08-23
Abstract: 1357188 Hydrocracking UNIVERSAL OIL PRODUCTS CO 23 Aug 1971 [24 Aug 1970] 39356/71 Heading C5E A hydrocarbon charge stock is converted into lower-boiling hydrocarbons in the presence of hydrogen in two catalytic reaction systems arranged in parallel. Each system contains from 30 to 70% of the catalyst and receives from 30 to 70% of the charge; the effluent from each is separated into gaseous and liquid phases without reduction of pressure and at a temperature of 316 to 427C.; the gaseous phase from the first reaction system provides the hydrogen for the second, and at least part of the gaseous phase from the second system provides hydrogen for the first. As shown, charge stock is heated at 2 and divided into two streams in lines 3 and 4. The stream in line 3 joins a stream of hydrogen in line 5, that has been preheated at 20, and passed over catalyst in reactors 6 and 8, and to a hot separator 10. The liquid phase from this separator is fractionated at 24, and the gas phase passes by line 11 to join the feed stream in line 4. This passes over catalyst in reactors 12 and 14 to a hot separator 16. The gas phase from this separator is cooled and again separated at 18 ; the gas phase from the cold separator passes by line 19 to the heater 20. The liquid phases from all three separators are mixed and fractionated at 24. A portion of the bottoms fraction may be recycled by lines 31 and 32 as a quench for the two streams at points between reactors 6 and 8 or 12 and 14 respectively. Makeup hydrogen is introduced at 21. The catalyst may comprise a metal of the V, Mo, or Ni groups on a porous carrier, e.g. alumina, titania, zirconia, magnesia, thoria, boria, silica-alumina, silica-magnesia, chromia-alumina, alumina-silica-boron phosphate, silica-zirconia or a zeolite. It may be used in a fixed bed, a moving bed, a fluidized bed or a batch operation, but a fixed bed is preferred, with upward, downward or radial flow. The conversion process may be a hydrocracking, aromatic hydrogenation, ring-opening, hydrofining to remove nitrogen or sulphur or to saturate olefines, improvement of kerosene fractions for jet fuel or hydrogenation.
Patent GB-1005943-A (GB)
Title: Multilayer electrical circuit assemblies and processes for producing such assemblies
Inventor: LEEDS MICHAEL THOMAS
IPC: H05K3/10
Filed: 1962-10-18
Abstract: 1,005,943. Printed circuits. INTELLUX Inc. Oct. 18, 1962, No. 39424/62. Heading H1R. In the production of a multilayer electrical circuit a first circuit 24, Fig. 4, is applied by an etched foil process, or by painting or screening &c., on to a base 25 of ceramic or plastic or of metal having an insulating coating on its surface. An insulating coating 26, e.g. of epoxy resin, is applied by spraying or screening except at points where intercircuit connections are desired; then a thin layer 28 of Cu or other metal is applied by vapour deposition or, preferably, chemical reduction, over the entire surface. A second circuit 31 is then applied, as by electroplating Cu through a mask 32, which is subsequently removed, after which unplated parts of coating 28 are removed as by chemical etching. Alternatively, the whole coating 28 may be electroplated, the second circuit pattern being formed thereon in photoresist material, and the remainder of the electroplated coating being etched away. The process may be repeated until all circuits have been formed; Fig. 7 shows an assembly of three circuits, the connection between them being by means of an electrodeposited plug 44, keyed to insulating layers 26, 41. The plug 44 may be drilled to receive a component lead. The insulating coating 26 may be formed of a porous sheet, e.g. glass cloth or perforated polyester resin, coated on one or both sides by resin, applied in liquid or sheet form. The porous sheet may itself carry a conductive pattern; e.g. a thin sheet of Cu, laminated to a porous glass or resin sheet, may be etched to form the said pattern. An inlaid circuit is made by forming the first circuit pattern on a temporary support 51, Fig. 13; an insulating layer 52, a thin conductive coating, and the second circuit pattern are then applied, as described above. A permanent base 54, preferably a sheet of uncured thermoplastic material, is then bonded to the structure by heat and pressure, after which the temporary support 51 is removed. In the Fig. 4 embodiment, after the insulating coating 26 has been applied, the exposed portions of the first circuit may be built up to the level of the insulating coating 26 by electrodeposition. This is shown in Fig. 16, in which, moreover, the thin conductive coating 76 only partly covers the electrodeposited portion, so that the second circuit 77 is partly formed directly on to said portion.