baber/WOPTO huggingface dataset:
Patent GB-1251448-A (GB)
IPC: G03H1/34
Filed: 1969-03-12
Abstract: 1,251,448. Holography; integral photography. WESTERN ELECTRIC CO. Inc. March 12, 1969 [March 13, 1968], No.12918/69. Headings G2A and G2J] An image of a three-dimensional object 13 is recorded on a medium 19 by illuminating the object with coherent light 11, the modulated light from the object illuminating the recording medium 19 at successive locations through a slit 18 of a mask 17 to produce a plurality of records each containing information relating to a three-dimensional representation of a different aspect of the object, and relative movement is produced between the mask and the object in the interval between successive records. A mirror 15 provides a reference beam so that the successive records are holograms. Preferably the object is rotated in direction of arrow A between exposures and the mask and slit 17, 18 are moved oppositely in direction B. The images are reconstructed by re-illuminating the strip hologram with cohorent light along the path of the reference beam. By successively moving the strip hologram many aspects of the object are seen. In an alternative embodiment the medium 38 records a plurality of integral photographs. A non-coherent light source 31 illustrates the object 33 and the modulated light is directed to the recording medium through a slit 36 and a fly's-eye lens 37. In reconstruction the development record is illuminated and the resultant images formed after passage of the light through an optically equivalent fly's-eye lens. The hologram may be formed using any form of coherent radiation.
Patent GB-1253030-A (GB)
IPC: F22B37/74
Filed: 1967-11-30
Abstract: 1,253,030. Once-through steam boilers. BABCOCK & WILCOX Ltd. 24 Feb., 1969 [30 Nov., 1967], No. 54640/67. Heading F4A. In a once-through boiler including a plurality of flow paths in parallel, each flow path includes a flow resistor, two flow resistors being such that the pressure drop effected by one differs from that effected by the other by an amount (preferably at least 20%) such that the stability of the boiler is improved for a given average resistor pressure drop compared with the stability achieved where each flow resistor effects the same pressure drop, the latter pressure drop being equal to the aforementioned average. The boiler may have six helical flow paths in parallel, five of which have identical flow-resisting ferrules while the sixth is provided with a ferrule in which a lower pressure drop occurs, the sixth flow path being the one in which instability of flow resulting from an excessively rapid or large reduction of load would occur first were the ferrule in that flow path the same as the ferrules in the other flow paths. The ferrules in the five flow paths are such that if the ferrule in the sixth flow path were identical with them, each ferrule would effect a pressure drop of 33 p.s.i., and the ferrule in the sixth flow path is such that if all the other ferrules were identical with it, each ferrule would effect a pressure drop of 25 p.s.i. The ferrule in the sixth flow path may effect a higher pressure drop rather than a lower one. Each flow path may be formed by a serpentine tube.
Patent GB-1256773-A (GB)
IPC: C01B7/00
Filed: 1969-09-02
Abstract: 1,256,773. Purification of halohydrocarbons. KALI-CHEMIE A.G. 2 Sept., 1969 [5 Sept., 1968], No. 43425/69. Heading C2C. [Also in Division C1] Off-gases, including HC1, from plant producing fluorochloromethanes or ethanes are scrubbed with water, and air at 0-50 C. is passed countercurrent to the resulting hydrochloric acid in a column to remove residual halohydrocarbons, e.g. CF 2 Cl 2,  CFCl 3 , CHF 2 Cl, C 2 F 3 Cl 3  or C 2 F 4 Cl 2 . The exhaust air leaving the column is washed with water to form dilute hydrochloric acid, which is recycled to the scrubber at the same rate as hydrochloric acid is withdrawn from it. Examples describe the recovery of fluorinated and chlorinated methanes by scrubbing gases from the reaction of CCl 4  with HF.
Patent GB-1258784-A (GB)
IPC: F23D14/10
Filed: 1969-01-16
Abstract: 1,258,784. Gas burners. A. H. CLAEYS. 16 Jan., 1969 [18 Jan., 1968], No. 2603/69. Heading F4T. A universal gas burner having a tubular body 1 of constant cross-section and provided with gas ports 7, and an open sided chamber 12 at one end of the tube so that gas from an injector 11a draws in air before passing to a mixing tube 3, is characterized in that a perforate tubular distributer 4 of circular or polygonal constant crosssection is arranged at the outlet of the tube 3 parallel with the body 1 and a perforate elongate baffle plate 6 is disposed within the distributer obliquely to the longitudinal axis of the body. The baffle 6 and distributer 4 may form an aperture 8 at their ends, of a size determined by the length and power of the burner, and the distributer is sufficiently large to fit over the mixing tube. The orifices of plate 6 and distributer 4 are not more than 8 mm. long, measured along the longitudinal axes of the plate and distributer, and may be of any width. Portions between successive orifices in the distributer and baffle are inclined through angles of 0-45 and 0-60 degrees respectively, about axes transverse to the body. The mixing tube may be a Venturi or diffuser, and the length of the burner may be 20-150 cm. while the distance from the outlet of tube 3 to the end of the burner is 50-250 mm.
Patent GB-1265305-A (GB)
IPC: B60S1/46
Filed: 1968-07-17
Abstract: 1,265,305. Mechanical switches; motor controllers. JOSEPH LUCAS (INDUSTRIES) Ltd. 20 June, 1969 [17 July, 1968], No. 33980/68. Heading H1N. [Also in Division A4] A windscreen wiper control for a vehicle comprising a three-position switch and a control unit providing intermittent operation of the wipers, has the control unit detachably mounted on the switch casing by plug-and-socket connector parts. As shown, spindle 15 carries a moulded rotor 19 supporting a printed circuit board 16 for co-operation with fixed contacts such as 17, some of which are connected to sockets such as 18 and some to blade terminals. An " off " position and three " on " positions are angularly located by ball detent 22. The control unit 25 is mounted by plug connectors such as 26. The first "on" position of the switch provides slow speed of wipers, the second provides fast speed, and the third energizes the control unit 25 to provide intermittent wipe at preset intervals. The spindle 15 is also axially movable with respect to the board 16 and upon depression causes insulating button 27 to move a blade 28 into contact with a blade 31 for energizing a windscreen washer pump motor.
Patent GB-1265733-A (GB)
IPC: B01D9/02
Filed: 1969-03-05
Abstract: 1,265,733. Fractional solidification. CHENYEN CHENG. 5 March, 1969 [11 March, 1968], No. 11788/69. Heading BIG. In the fractional solidification of a mixture with subsequent separation and melting of the solid, cooling of the mixture (to form solid) is effected at least partially by indirect heat exchange with already formed solid (which is simultaneously melted) at a lower temperature existing as a result of an applied differential pressure. The mixture may be brine, fruit juice, milk, heavy water, or impure m- or p-xylene, benzene, wax, or naphthalene. A freezer-melter unit may be in the form of a honey-comb metal block having three series of conduits A-C for (a) cooling feed, (b) melting solid, and (c) auxiliary cooling. The conduits may be of oval cross-section. As shown, operation may be effected by passing alternately (a) feed through conduits A (solid  forming on the walls of the conduits) and purified liquid through conduits B (mixing with melt from solid already formed on the walls of the conduits) and (b) feed through conduits B and purified liquid through conduits A (after intermediate replacement of mother liquor by purified liquid in conduits A and vice versa in conduits B). A movable elastic plug may prevent mixing during the intermediate replacement. A plurality of units may be in series arrangement for feed and (a) parallel (Fig. 7) or (b) reverse series (Fig. 8) arrangement for purified liquid.
Patent GB-1265835-A (GB)
IPC: B29C70/86
Filed: 1969-10-14
Abstract: 1,265,835. Reinforced laminates. UPJOHN CO. 14 Oct., 1969 [21 Oct., 1968], No. 50418/69. Heading B5N. In a laminate comprising a cellular polyurethane core bonded between fibre-reinforced non-cellular resin outer layers, a plurality of fibre-reinforced non-cellular resin struts, integral with the outer layers, pass through the core. The laminate is made by forming apertures through the core and simultaneously or successively passing fibrous wicks, in the form of one or more strands, therethrough, e.g. by needling or stiching. The fibrous reinforcements for the outer layers, e.g. woven sheets, chopped fibres or paper, are applied either before the apertures are formed or after the wicks have been inserted in the core. A single wick may be passed through all the apertures. Resin is then applied, to form the outer layers and reinforcing struts. The struts may be perpendicular or at an angle to the faces. Examples of fibrous reinforcements and resins are given; preferably glass-fibre reinforced polyester is used.
Patent GB-1265910-A (GB)
IPC: A47F10/06
Filed: 1970-03-31
Abstract: 1,265,910. Food tables. R. K. ZIMMERLY. March 31, 1970 [May 14, 1969], No.15089/70, Heading A4H. A snack bar table comprises a base 4 with a waste container 16 and legs 8 supporting a table top 6 with an aperture 10 through which waste food and food containers may be deposited to fall into the container 16. The table top 6 is divided into segments by partitions 12 which support a shelf 14 for condiments.
Patent GB-1266257-A (GB)
IPC: C03C3/118
Filed: 1970-03-20
Abstract: 1,266,257. Strengthened glass. HOYA GLASS WORKS Ltd. 20 March, 1970 [27 March, 1969], No. 13528/70. Heading C1M. A P 2 O 5 -free glass comprising, in mol. per cent, 45-85 SiO 2 ; 4-32 Al 2 O 3 ; 8-30 Na 2 O+Li 2 O, where Li 2 O is not above 70% of the total Na 2 O + Li 2 O; 2-13 ZnO and/or F 2 , F 2  not exceeding 8; the molar ratio (Li 2 O+Na 2 O)/Al 2 O 3  being 2/3-4; the total of SiO 2 , Al 2 O 3 , Na 2 O, Li 2 O, ZnO and F 2  being at least 90 (the balance, if any, may include K 2 O, MgO, PbO, CdO, CaO, B 2 O 3 , TiO 2  and/or ZrO 2 ), is strengthened by contact with a molten alkali metal salt at not above the strain point of the glass (e.g. 300- 480‹ C.) to exchange alkali metal ions. The alkali metal has an ionic radius greater than that of the smallest alkali metal ion in the glass (preferably Na or K), and the salt may be a nitrate, sulphate, sulphite, bisulphate or halide, and a salt of Pb, Ca or Cu may be added to the alkali metal salt.
Patent GB-1289291-A (GB)
IPC: A47D13/02
Filed: 1968-06-27
Abstract: 1289291 Carry-cots B F MAHER 29 Sept 1969 [27 June 1968] 30740/68 Heading A5X [Also in Division B8] A carry-cot of corrugated resilient cardboard coated with plastics comprises four upstanding walls and a base spaced from the lower ends of said walls. The cot may be formed from a blank of plastics coated resilient board (Fig. 1, not shown) formed with appropriate flaps and fold lines and provided with handle flaps (37) stamped out of the cardboard. A tray formed of corrugated resilient cardboard is also provided (not shown) which may be folded from a blank of cardboard (Fig. 2, not shown) and removably located on the carrycot.
Patent GB-1290213-A (GB)
IPC: H03H9/36
Filed: 1970-06-23
Abstract: 1290213 Glass composition CARL-ZEISSSTIFTUNG [trading as JANAER GLASWERK SCHOTT & GEN] 23 June 1970 [25 June 1969] 30452/70 Heading C1M A glass comprises the following constituents expressed as percentages by weight: SiO 2  48- 50; Li 2 O 0-0À5; Na 2 O 0-0À7; K 2 O 0À3-1À0; BaO 10-14; ZnO 2-7; PbO 30-45; Sb 2 O 3  0À3-1À0; the sum of the alkali metal oxide amounting to 0À3 to 2À0, the balance, if any, being compatible constituents. Up to 2% by weight of the glass may consist of CdO, SrO, WO 3  and/or Al 2 O 3 . The glass is produced from a batch introduced into a glass melting tank at 1440‹ C. and refined at a temperature of 1480‹ to 1500‹ C. and cast at a viscosity of between 300 and 500 poises (corresponding to temperatures of 1420-1360‹ C.). The glass is used in making delay lines.
Patent GB-1297854-A (GB)
IPC: B62D1/16
Filed: 1970-03-02
Abstract: 1297854 Vehicle steering mechanism MASSEY-FERGUSON Inc 2 March 1970 [3 March 1969] 9870/70 Heading B7H In a vehicle having hydraulic power steering mechanism including an hydraulic steering control valve, a manually-operated steering control member actuates the steering valve through variable velocity ratio connecting means having selector means for changing the velocity ratio to obtain a desired movement of the valve in response to a given movement of the control member. An articulated vehicle has front and rear sections 12, 16 with respective wheels 14, 18 steered by hydraulic jacks 22 controlled by a steering valve 26 which is actuated through a steering shaft 58 by a steering wheel 62. An actuating rod 34 for the valve 26 is connected to an arm 38 on a shaft 40 rigidly attached to an output lever 42 which is journalled on a shaft 46 carried by a body bracket 48. A slot 50 in the output lever 42 receives a connecting-pin 52 which also projects through a slot 54 in an input lever 56 secured to the steering shaft 58. The pin 52 is carried by a slide structure 71 which is slidably mounted on the lever 56 so that the position of the pin 52 in the slots 50, 54 can be varied to adjust the effective lever arms of the levers 42, 56 by rotating an eccentric cam 74 engaging between bars 66, 70 on the slide structure 71 and carried by a tube 72 surrounding the steering shaft 58 and journalled by bushings 75 in a fixed jacket 76. A block 82 secured to the tube 72 carries a selector lever 90 which projects through an arcuate slot 100 in a shroud 96 secured on the steering shaft 58 together with the steering wheel 62 by a nut 63 and key 64. The selector lever 90 is mounted on the block 82 by a pivot pin 84 and spring- loaded into engagement with detent notches 102 arranged around the slot 100 to provide a choice of three steering ratios.
Patent GB-1303811-A (GB)
IPC: B23B27/16
Filed: 1969-05-09
Abstract: 1303811 Cutting tools WICKMAN WIMET Ltd 4 May 1970 [9 May 1969] 23701/69 Heading B3T In a cutting tool comprising a holder 4 and a detachable cutting insert 10 with a central aperture 9 the insert is clampable against a projection 8, which extends from a seating 5 on the holder into the aperture 9, by way of screws 11. The screws 11 extend through a shoulder 7 on holder and are adjustable to permit angular adjustment of the insert 10 around the projection 8. The projection on which the insert is locatable may be a pin which extends from the holder body or a projection integral with the body. In an alternative arrangement the shoulder 7 may be omitted and screws having head portions which engage the side of the-insert, are provided.
Patent GB-1304774-A (GB)
IPC: H03G5/04
Filed: 1970-07-24
Abstract: 1304774 Tone control W W PALMER 24 July 1970 36138/70 Heading H3W A tone control circuit comprises a low audio frequency range control circuit 5, a medium audio frequency range control circuit 6 and a high audio frequency range control circuit 7, having means capable of being adjusted such that when an input signal is applied to each control circuit no output is obtained. The arrangement may be proceeded by a volume control potentiometer 1 and D.C. blocking capacitor 2. The low audio frequency range control circuit 6 comprises a potentiometer 53 in series with series-connected resistors 51, 52 and resistor 54 is connected in series between its output and the output terminal 9. The medium audio frequency range control circuit 6 comprises a potentiometer 63 in series with seriesconnected resistors 61, 62, a resistor 64 in series with capacitor 65 being connected in series between its output and the output terminal 9. The high audio frequency range control circuit 7 comprises a potentiometer 75, a capacitor 75 being connected in series with its output and output terminal 9. A resistor 10 is connected between the combined outputs from circuits 5, 6 and output terminal 9. The arrangement of series resistors 51, 52 and 61, 62 is used to reduce the effect of shunting stray capacities.
Patent GB-1305489-A (GB)
IPC: B29C44/00
Filed: 1970-09-24
Abstract: 1305489 Sheet forming OMEGA PLASTICS Ltd 22 July 1971 [24 Sept 1970] 45625/70 Heading B5A [Also in Division B8] A sheet of packing material, used to protect contents in containers, comprises a thin sheet of microcellular expanded polystyrene which has been vacuum moulded to produce a series of rows of projections 2 on one, and corresponding recesses 3 on the other, side. The sheets, which are each of the order of 1 mm. thick, can be stacked, to provide the required packaging thickness, and also for storage. As shown in Figs. 1, 2 the projections 2 are arranged in a regular pattern and are circular in cross-section, the distance between the centres of the projections preferably being no more than three times the height of a projection above the base plane of a sheet. In a modification, Figs. 4, 5, not shown, the projections (7) are of annular form and have their bases (10) coincident with the base plane of the sheet.
Patent GB-1312775-A (GB)
Title: Aryloxyalkyl nicotinates
IPC: C07D213/80
Filed: 1969-07-07
Abstract: 1312775 Aryloxyalkyl nicotinates MARPHA SOC D'ETUDES ET D'EXPLOITATION DE MARQUES 6 July 1970 [7 July 1969] 34221/69 Heading C2C Novel aryloxylalkyl nicotinates of the general Formula I wherein R 1 , R 2 , R 3  which may be the same or different and represent hydrogen, halogen C 1 - C4 alkyl or isobornyl, R is hydrogen, an aryloxy radical II a hydroxymethyl or a nicotinoyl oxymethylene group III and R<SP>1</SP> is hydrogen or an aryloxy radical II and non-toxic acid addition salts thereof may be prepared by condensing nicotinic acid chloride or its hydrochloride with an alcohol IV in an aromatic solvent and optionally converting the free base to an acid addition salt using the corresponding acid. Pharmaceutical compositions of the compound I or an acid addition salt thereof with the usual excipients show hypocholesterolaemia, hypolipidaemia and hepato-protective activity when administered orally.
Patent GB-1314825-A (GB)
Title: Cigarette making machines
IPC: A24C5/18
Filed: 1969-08-01
Abstract: 1314825 Cigarette making-machine trimmer MOLINS MACHINE CO Ltd 30 July 1970 [1 Aug 1969] 38738/69 Heading A2C A trimmer for a tobacco filler stream, comprises one or more rotary trimming discs 44, 46 mounted on a carrier 54-60 which is pivotally mounted by ball or roller bearings 62, 64 on a stationary member 160 including a drive shaft 36 for driving the trimming discs 44, 46, the shaft 36 being coaxial with the pivot axis about which the carrier 54-60 pivots relative to the stationary member 160. The carrier 54-60 comprises the three sections 54, 56, 58 of a tubular housing, the section 58 (Fig. 3) forming part of a composite integral section with a part 60 (Fig. 5). The drive from the shaft 36 is transmitted via bevel gears 66, 68, (Fig. 3) and shaft sections 70, 72 to a gear 84 on a coupling member 82, the gear 84 driving the trimming discs 44, 46 through a gear 86 (Fig. 5), a shaft 88 carrying helical gears 90, 92, and gears 94, 96. The coupling member 82 also transmits drive, via a shaft 76 and bevel gears 78, 80, to a rotary brush 52 that aids removal of trimmed off tobacco. The drive shaft 36 is driven from a gear box 10 which includes a train of gears (24), 26, (28) which are interchangeable to allow speed adjustment. The gear box 10 also includes a pumped lubricating system.
Patent GB-1317971-A (GB)
Title: Supply of dc loads from polyphase ac sources
IPC: H02M7/162
Filed: 1970-05-26
Abstract: 1317971 Automatic control systems TYDEMAN MACHINE WORKS Inc 26 May 1970 25255/70 Heading G3R [Also in Division H2] In a converter for supplying a D.C. load 15 e.g. a reversible D.C. motor, from a A.C. supply, the number of phases of A.C. supply is increased to a least six by means of a phase multiplying transformer 10...12 each secondary of which is coupled to the load by an arrangement of bi-directional controlled rectifiers 20...31, triggered by means of comparators 50 when the instantaneous value of the A.C. is approaching the D.C. load voltage. As described, the bidirectional controlled rectifiers 20...31 may be  triacs, mercury vapour rectifiers or, as shown, anti-parallel pairs of thyristors. Retroactive control of velocity. In a reversable D.C. motor control system, the velocity is sensed e.g. by a tachogenerator 150 or encoder and compared by amplifier 40 with a command voltage supplied via resistor 43. The resulting error voltage from amplifier 40 is fed to a comparator 50 in the form of an integrated Schmitt trigger, for each of the six phases. Each comparator 50 also receives a filtered version of the voltage  across the motor via conductors 51 and, via  conductor 53, the A.C. voltage of the respective  phase. Each comparator 50 generates a rectangular pulse Figs.2 and 3 (not shown) starting when the instantaneous value of the phase voltage is crossing the sum of the error and load voltages  and terminating when the phase crosses the  combined voltage in the other direction. Blocking oscillators 60, 65, selected by gates 63 and 62 generate trigger pulses for the appropriate  thyristors 20... 31 at the onset and termination of each rectangular pulse. Current limiting. The current in load 15 is monitored by resistor 80 and fed to amplifier 81. If instantaneously excessive, as determined by Zener diodes 83, the error voltage is modified accordingly by the signal on line 60. The load current-responsive signal is also integrated at 90, 91 and, if excessive over a long period, as determined by Zener diodes 93, 94, a further current-modifying signal is provided by amplifier 95. Modifications. A simplified version of the system shown in Fig. 1 may be used to control the field current of a separately excited motor or the supply to a heater.
Patent GB-1319744-A (GB)
Title: Vehicle for transporting and dumping materials
IPC: B60P1/30
Filed: 1971-02-25
Abstract: 1319744 Tipping LONDON BRICK CO Ltd 20 Dec 1971 [25 Feb 1971] 5394/71 Heading B7B A vehicle for transporting and dumping materials includes a tiltable container supporting frame 11 on which a container 12 is caused to slide and engage an abutment 14 to dislodge any material held in the tilted container. In operation the container sub-frame 11 together with container 12 is pivoted relative to chassis 10 by the main hydraulic cylinder arrangement 15. If however material is jammed in container 12, high pressure liquid is supplied to cylinders 26 which force pistons 27, connected to sliding plates 24, outwardly so moving the container up the inclined sub-frame 11 for a predetermined distance. The pressure is then released from cylinder 26 and container 12 slides down the sub-frame 11 until its reinforced edge 18 engages the abutment 14 so that the resultant shock load dislodges the material from the container. If desired, movement of container 12 could be effected pneumatically or mechanically, e.g. by a sliding or rotating pawl arrangement.