baber/WOPTO huggingface dataset:
Patent GB-1418545-A (GB)
Title: Video signal recording and or reproducing apparatus
IPC: H04N5/7826
Filed: 1973-09-27
Abstract: 1418545 Video recording SONY CORP 27 Sept 1973 [29 Sept 1972] 45332/73 Heading G5R [Also in Division G3] In a magnetic, video recording and playback arrangement having a rotary head and tape guide drum for oblique scanning of a tape, the speed of the scanning heads is controlled both for normal and still picture playback. Heads 5 rotate on arm 6 driven by motor 26 and a magnetic wheel 27 coupled to the motor shaft co-operates with transducer 28 to derive a signal A having a frequency which is a function of head rotational speed. This signal is limited 30 and differentiated 31 and then used to trigger a flip-flop 33 to produce positive pulses E having a width representing the actual head rotational speed. These pulses are applied to a comparator 34 and their leading edges trigger a flip-flop pulse generator 204 which can be set by switch 46 to produce negative going pulses G having a duration which are a function of the required speed of the head for normal play back or a required faster speed (to compensate for the stationary tape) during still play back. These pulses G are also applied to the comparator which provides output pulses having a duration which is a function of the difference between the actual and required speeds. These are integrated 47 and amplified 68 to provide an energizing signal for the motor 26. A measure of the relative tape/pickup head speed is also derived by triggering a saw tooth generator 21 by a signal picked up from head 10 from the tape at a time which is a function of tape speed and sampling the saw tooth waveform by a signal picked up from head arm 6 by detector 17 at a time which is a function of head speed. The sampled signal is stored 23 and used to modify the duration of the normal required speed signals to ensure a constant relative speed. A tape run circuit 205 is provided including a terminal 49 to which a D.C. voltage is applied when the arrangement is energized. When a control knob 15, Fig. 3, is in its normal (full line) position, this voltage is applied via transistors 53, 54 to energize part 57 of solenoid 85 and momentarily, because of the input capacitor 60, to transistors 59, 66 to energize the other part 65 of the solenoid. With both parts energized solenoid 85 can draw pinch roller 12 on arm 81 into engagement with capstan 11 to drive the tape, the continued energization of winding 57 only being sufficient to hold the engaged condition. When knob 15 is moved to the still (broken line) position switches 46 and 51 are changed over in unit 104 via linkage 99, 92, 90, 75 and the pivoting of arm 78 brings its end 84 into engagement with a pin 83 on the pressure roller arm to pivot the roller arm and move the roller out of engagement with the capstan.
Patent GB-1364957-A (GB)
Title: Process for the manufacture of cement clinker and sulphur dioxide
IPC: C04B7/04
Filed: 1972-10-02
Abstract: 1364957 Making cement CHEMIE LINZ AG 2 Oct 1972 [14 Oct 1971] 45422/72 Heading C1H Cement clinker and SO2 are obtained from CaSO4 according to the gypsum-H2SO4 process in a rotary furnace comprising a sintering zone followed by a reaction zone by adding tertiary in the reaction zone to provide 0À1-0À5% O2 in the exit gases, preheating all the raw meal in suspension before entering the furnace by these gases, the tertiary air being introduced in at least two partial streams, wherein entrained air entering the suspension heat exchanger is the first partial stream, the rest of the tertiary air being introduced into the suspension gas zone in one or several streams, the gas temperature being at least 870 C. at the entry point of the entrained air, and not above 800 C. at the entry point of the next further stream.
Patent GB-1517858-A (GB)
Title: External combustion engine heating assembly
IPC: F02G1/055
Filed: 1976-11-02
Abstract: 1517858 Hot gas engines; steam engines FORENADE FABRIKSVERKEN 2 Nov 1976 [11 Nov 1975] 45431/76 Headings F1M and F1S A hot gas engine or steam engine heating assembly comprises arcuately-shaped heater tubes 12 disposed in a substantially cylindrical group and a constructional unit comprising a cylindrical combustion chamber 16 at least partially surrounded by a heat exchanger, one end of the constructional unit closely approaching to within 3 cm. of or abutting one end of the group of heater tubes. The heat exchanger comprises spaced cylindrical walls 20, 21 surrounding the combustion chamber 16, a space between the walls being divided by partitions (not shown) into a plurality of passages, some being for the flow of combustion air and the others being for the flow of combustion gases.
Patent GB-988899-A (GB)
Title: Improvements in or relating to improved mounting arrangements for magnetic-drum transducer-head assemblies
Inventor: GRAVES ALBERT ERNEST
Filed: 1962-12-05
Abstract: 988,899. Magnetic recording apparatus. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Nov. 19, 1963 [Dec. 5, 1962], No. 46025/62. Addition to 824,711. Heading G5R. The mounting arrangefnent of the parent Specification is modified by the addition of a ring 28 mounted concentrically with and above the mounting plate 10, the mounting posts 12 being adjustably secured between the ring and the mounting plate. The radial position of the mounting post may be adjusted by means of L shaped slots 15 through which pass clamping screws 16, its innermost position being determined by an abutment 20 on the radial arm 19, and by a stop 33 on the ring 28. In order to set the position of abutment 20 and stop 33 a jig is mounted on the arm 19, Fig. 3 (not shown) and screws 22 are adjusted to move the arm 19 against the action of the spring 25 until abutment 20 is correctly positioned. Stop 33 is then adjusted by means of screws 34 in slots 35. The post 12 is then positioned and locked by means of screws 16 and a further screw which passes through a hole 32 in the ring 28, the hole being large enough to allow movement of the post when adjusting it.
Patent GB-1193216-A (GB)
Title: Improvements in or relating to Pushbutton-Operated Tuning Apparatus
Inventor: OHASHI TAMAKI
IPC: H03J5/12
Filed: 1968-09-27
Abstract: 1,193,216. Push-button tuning arrangements. T. OHASHI. 27 Sept., 1968 [7 Oct., 1967], No. 46164/68. Heading H3Q. [Also in Division E2] In push-button tuning apparatus having a pair of arms 5,11 one of the arms 5 has a tuning frequency setting plate 3, a locking member 4 for locking the plate 3 and a slidable actuating member 1 for operating the locking member 4, and the other of the arms 11 has a push-button 12, the pair of arms 5, 11 are assembled with a connecting member 10 which has an inclined piece 7 which engages an inclined cut-away portion 15 of the arm 11 such that when the arm 11 is pushed the connecting member 10 is inclined to the axis of the arm 11 to move the arm 5 transversely to the direction of operation. This transverse movement of the arm 5 in an upward direction in Fig. 2 causes precise engagement of the edges of the arms 5 and 11 with the opening in the front plate A so as to enable precise re-setting of the tuning frequency setting crank B to be obtained. On initial inward movement of the button 12 the tuning frequency setting plate moves to the angle set by the tuning crank B and the member 1 slides on the arm 5 to actuate the locking means 4. The frequency setting plate 3 is now locked and on further pressing the button the connecting member 10 is rotated anticlockwise about T piece 2 by end piece 7 engaging the inclined part 15. This produces the transverse movement of both arms 5, 11. In a modification (Fig. 4, not shown), the positions of the slot 9 and end piece 8 are interchanged.
Patent GB-1535793-A (GB)
Title: Measuring probes
IPC: A61B5/01
Filed: 1976-11-05
Abstract: 1535793 Thermoelectric probes DRAGERWERKE AG 5 Nov 1976 [5 Nov 1975] 46235/76 Heading H1K In a probe for measuring heat transfer of the blood supply in living tissue a thermally insulating support needle 60 has formed thereon three electrically conductive films 61, 63 and 64 together with an electrically insulating film 62 as shown. The film 63 is of different thermoelectric material from the films 61 and 64. The net result is that two thermoelectric junctions 66 and 65 are formed. The junction 66 is connected in oppostion to the junction 65 so that the difference between the two thermoelectric voltages can be taken at the limbs of the films 61, 64 that extend to the rear of the probe. The needle may be of glass &c. to conduct infra-red radiation from a radiation source to the tip of the probe and thereby heat the tissue in the immediate vicinity of the tip. In Fig. 2 a needle 50 has electrically conductive films 51, 53, 55 and 57 arranged over one another and separated by electrically insulating films 52, 54 and 56. The complete arrangement is shielded by a further electrically insulating film 58. Any two of the films 51, 53, 55 and 57 are used for the thermoelectric measurement while the remaining two are used to form limbs connected to a resistive portion that will provide heat when an electric current is passed therethrough.
Patent GB-1135058-A (GB)
Title: Improvements in or relating to stands for holding trays and the like
Inventor: FAWKES ROBERT
IPC: A47F5/00
Filed: 1965-11-02
Abstract: 1,135,058. Stands. HALL & GOULDING Ltd. 1 Nov., 1966 [2 Nov., 1965], No. 46306/65. Heading A4H. A stand for releasably supporting trays 24 in cantilever fashion comprises sets of three rods 16, 18, 20 extending between upright end frames 12, (14) and arranged so that the bottom of the tray rests on the lowermost horizontal rod 16 and an end 26 of the tray abuts the next highest horizontal rod 18 and the rear upper edge 28 of the tray is disposed behind the middle portion of the highest rod 20. The latter is of shallow V form or arcuate or stepped. The end frames 12, (14) are secured by clips (34) to a base frame (10).
Patent GB-1048610-A (GB)
Title: Catalytic polymerisation of aldehydes
Inventor: WALKER DAVID MALCOLM
IPC: C08G2/14
Filed: 1964-11-16
Abstract: Aliphatic aldehydes are polymerized using as initiator the product of treating the alkyl of a metal of Group Ia, II or IIIb with a thiol, a carboxylic acid, a ketone or a primary or secondary amine.  Specified alkyls are aluminium trialkyls and zinc dialkyls while the treating compound may be methane or ethane thiol, acetic or n-butyric acid, acetone, methyl ethyl ketone, methylamine and n-propyl, butyl, isopropyl, dimethyl or diethylamines.  Specified aldehydes are acetaldehyde, butyraldehyde, chloral and mixtures thereof.  The polymerization preferably taxes place in an inert solvent, e.g. hexane.  The catalyst preparation is described in Specification 1,048,609.
Patent GB-1086962-A (GB)
Title: Improvements in filters and filtering
IPC: B01D25/127
Filed: 1964-11-17
Abstract: 1,086,962. Liquid filter. G. HIRS. Nov. 17, 1964 [Feb. 28, 1964], No. 46687/64. Heading B1D. A liquid filter comprises vertically spaced shells 11..(15), of which shells 12, 13, (14) are each divided by an impervious horizontal partition 36 and the lower face of shell 11, the upper face of shell (15) and both horizontal faces of shells 12, 13, (14) are apertured, individual planar filter elements 27 being interposed between each pair of adjacent shells (Fig. 1, not shown), inflatable peripheral seals 55 on four shells sealing the shells together with elements 27 clamped therebetween, and dirty liquid being introduced into shell 11 and lower compartments 38 of shells 12, 13, (14) while filtrate is removed from upper compartments (37) and shell (15). Fine mesh, rectangular elements 27 are each carried between a pair of endless chains (24), and periodically alternate chains are driven in opposite directions by independent motors, whereby elements 27 are inverted and carried under steam jets (68) to remove solids which fall on to deflectors (67), (Fig. 1). Seals 55 (Figs. 4, 5, not shown) are resiliently biassed to collapse and are inflated by compressed air. Filter aid (Fuller's earth) may be added to the incoming liquid. The pressure in one inlet compartment 38 may be monitored so that when the adjacent filter element clogs it initiates an automatic cleaning cycle on all four elements. The dirty liquid is cut off and remaining liquid forced through the elements by compressed air supplied to inlet chambers 11, 38 by conduits 50. The resulting decrease in pressure in one inlet chamber initiates deflation of the seals 55, which in its turn initiates element movement and supply of seam to jets (68). One element engages a contact switch in the filtering position, whereby all elements are controlled to move round their closed loops until this switch is reopened to stop the motors and inflate the seals. The restored seal pressure initiates the liquid inflow. The various valves are solenoid operated and the control circuit (Fig. 7, not shown) includes timers and relays to control the different actions.
Patent GB-1318827-A (GB)
Title: Chromogenic amino-substituted fluoran compounds
IPC: C09B11/24
Filed: 1971-10-11
Abstract: 1318827 Fluoran compounds NATIONAL CASH REGISTER CO 11 Oct 1971 [3 Nov 1970] 47180/71 Addition to 1269601 Heading C4P [Also in Division D2] The invention comprises fluoran compounds of formula where R 1  represents H, amino or mono- or dialkylamion and each R 2  represents H or alkyl; any alkyl group represented by R 1  or R 2  having less than 5 carbon atoms. 4,5,6,7-Tetrachloro- 3<SP>1</SP> - diethylamino - 7<SP>1</SP>,8<SP>1</SP> - benzofluoran and 4, 5,6,7 - tetrachloro - 3<SP>1 </SP>- diethylamino - 7<SP>1</SP>,8<SP>1</SP> - (α- aminobenzo)-fluoran are claimed per se. The compounds may be prepared by reacting tetrachlorophthalic anhydride with a dialkylamino phenol and reacting the produced benzophenone with a substituted naphthol. The compounds are used as colour formers in pressure sensitive copying paper.
Patent GB-1351656-A (GB)
Title: Dehulling rape seed
IPC: B02B3/00
Filed: 1971-10-11
Abstract: 1351656 Dehulling seeds and grain L PALYI 11 Oct 1971 [14 July 1971] 47229/71 Heading A2Q  Rape seed is dehulled by being heated to about 45‹C, then passed by a current of cold air to an impact plate arrangement where the hulls are cracked, and then separated mechanically by friction without extraction of oil from the seeds. In the apparatus described, stated to be suitable also for wheat, barley, rice, linseed, maize, soya beans, and the seeds of mustard, sunflower, sesame, cotton, &c, iron particles are removed from the seed by a magnetic separator MA and other foreign matter by a separator AS before the seed passes to a weighing device W and radiant heater H where it is heated for a period of 2 to 3 seconds to a temperature of 45‹C. It then passes through a metering device D to a mixing chamber MK from which air at a temperature of about 10‹C delivered by a blower V conveys it to a number of series-connected units A with funnel-shaped impact plates 14, followed by series-connected units B, C each of which has a tapering helical passage in which the hulls are removed, the passage through each unit B being defined by a core with helical grooves of saw-tooth form, or an abrasive coating, surrounded by and spaced from a cylindrical casing with helical grooves, and the passage through each unit C being defined by a helical strip on a tapered core surrounded by and spaced from a smooth, tapered, adjustable sleeve. The cross-section of the passages through the units C is smaller than that through the units B. The seed and detached hulls then pass through a cyclone CY and air lock 46 to an air-current classifier LS 1 , from which separated hulls are removed at 50, and a second classifier LS 2  from which hulls mixed with portions of seed or kernel, and therefore requiring further separation, are removed at 52, and the separated seed is discharged at 48. The material from 52 passes to a screen sifter (not shown) which discharges separated hulls and dehulled seed material, and also fine grain material which is fed to a further separator (not shown) comprising rollers with surfaces of a plastics material, e.g. polyamide. From this separator, a flour is discharged through one outlet, and hull residue, attracted to the rollers by a static charge and removed therefrom by brushes, to another outlet.
Patent GB-1350489-A (GB)
Title: Device for transverse wedge-rolling parts from rods or slugs
IPC: B21H1/18
Filed: 1971-10-11
Abstract: 1350489 Wedge-rolling machine VYZKUMNY USTAV TVARECICH STROJU A TECHNOLOGIE TVARENI 11 Oct 1971 [14 Oct 1970 16 Oct 1970 30 Nov 1970] 47299/71 Heading B3M A transverse wedge-rolling machine, in which rods or slugs are rolled between flat or rotary rolling tools, incorporates two supports arranged on either side of the working space between the tools and located coaxially of the rolling axis, at least one of the supports being axially movable. In one embodiment, Fig. 2, a workpiece rod 35 is fed between a pair of rolls 2 and 3 carrying wedge tools 4, and is held by supports 8 and 18 during rolling. The rod is fed by rollers 11a and 10a through a heater 9 before reaching the rolls. During rolling, the support sleeve 8 for the rod is moved progressively away from the working space by means of a roller 15 on the sleeve co-operating with a cam 16 on the roll 2. A similar arrangement may be provided for the support 18. The operation of the rollers 10a and 11a is synchronized with rotation of the work rolls by means of switches on the roll 2 which control the motors for the rollers. Instead of using rods 35 and 35<SP>1</SP> which are progressively fed into the working space, individual slugs may be used. In this case, the slugs can be fed into a lateral recess in a modified guide sleeve 8. In a further embodiment, Fig. 10, a slug is fed laterally into the working space by a roller bed 51. Mandrels 53 and 54 support the ends of the slug during rolling. The mandrels can be rotatably carried in bushings, and one of the mandrels may be axially fixed. Guide sleeves 57 and 58, Fig. 11, may alternatively be used to support a slug- 52. Two mandrels 53 and 54 may be associated with the sleeves or only a single mandrel 53 may be used. During rolling, the sleeves are moved away form the working space by contact of the sleeves with the edges of the rolling tools 4 and 5. The sleeves may be rotatable or be provided with rotatable end flanges. Movement of the mandrels and sleeves in all the embodiments may be controlled pneumatically, hydraulically or mechanically.
Patent GB-1319265-A (GB)
Title: Naphtha reforming process and catalysts therefor
IPC: C10G35/09
Filed: 1970-10-06
Abstract: 1319265 Hydroconversion catalysts CHEVRON RESEARCH CO 6 Oct 1970 [9 Oct 1969 30 Jan 1970 4 Feb 1970 20 Feb 1970] 47524/70 Addition to 1238770 Heading B1E [Also in Division C5] The catalysts comprise, by weight, 0.01-5% of a platinum group component, 0.01-5% of a tin component and 0.1-3% of a halogen, and a porous, solid alumina carrier. The catalysts may also contain a rhenium component. In an example a commercial Pt-bl- Al 2 O 3  catalyst is impregnated with an ethanolic solution of SnCl 4 , dried, calcined in air at 900‹F and reduced in H 2 .
Patent GB-1361106-A (GB)
Title: Fluxes for use in joining metal surfaces
IPC: B23K35/36
Filed: 1972-10-17
Abstract: 1361106 Soldering flux K O CHRISTE 17 Oct 1972 47767/72 Heading C7E [Also in Division B3] Metal surfaces, prior to joining by soldering, brazing or solid state diffusion are cleaned by a gaseous hydrazine flux of the formula R 1  R 2  NNHR 3  where R 1  R 2  and R are each H, aliphatic, cycloaliphatic or aromatic. The hydrazine is preferably used in admixture with an inert carrier gas such as He or N 2 , the hydrazine concentration being 1-10% volume. The gas mixture is produced either by passing the carrier gas through heated liquid hydrazine or an aqueous hydrazine solution. Cu, Ag, Au and Ni are soldered with Sn-Pb or In-Sn for the production of printed circuits.
Patent GB-1009456-A (GB)
Title: Improvements in or relating to horological instruments
Inventor: WILLIAMS GRAHAM
IPC: G04C3/06
Filed: 1962-12-19
Abstract: 1,009,456. Clocks and watches. S. SMITH & SONS (ENGLAND) Ltd. Sept. 13, 1963 [Dec. 19, 1962], No. 47869/62. Heading G3T. [Also in Division H1] In an electric timepiece of the kind wherein the oscillating balance or pendulum carries a coil co-operating with a fixed magnet and is impulsed through a transistor circuit, the timepiece is provided with at least one permanent magnet constructed from a high energy magnetic material and at least one member constructed from a high permeability magnetic material, these being arranged to form a magnetic circuit with a gap for the coil, the high energy magnetic material having an energy product not less than 5 x 10<SP>6</SP> Gauss- Oersteds, a working field strength not less than 550 Oersteds and a working flux density not less than 8000 Gauss. The parts may be arranged as in Fig. 2 wherein the magnetic circuit through two permanent magnets 1, 2 on opposite sides of the coil 6 is completed by the permeable parts 3, 4, 5, part 3 being adjacent the dial 7 of the watch and part 4 adjacent the case back 8. In an alternative construction the gap 12, Fig. 4, is angled as shown in relation to the rectangular magnets 11, 14 joined by the permeable part 15. Other alternative constructions are illustrated (Figs 5 to 8, not shown). The magnets are cut from a chilled mould cast of a known crystal orientated anisotropic material so that the magnetic axis is parallel to the direction of least reluctance, which reduces "fringing". The pole faces may be covered by thin slices of high permeability material to modify the flux distribution across the gap. In preferred constructions the high energy magnetic material has an energy product not less than 7 x 10<SP>6</SP> Gauss- Oersteds; the high permeability magnetic material is such that at a flux density of 15,000 Gauss the field strength is not greater than 20 Oersteds; the length of the gap in the direction of the flux is not greater than one third the length of any dimension of a face of the gaps which passes through the centroid of that face and is not greater than one third the length of the magnet or the total length of the magnets in the direction of the flux; the flux density over at least 75% of the gap area is at least 60% of the maximum flux density in the gap; and the total flux through the gap is at least 25% of the total flux through the magnet or magnets.
Patent GB-1082635-A (GB)
Title: Porous ion exchange resins
Inventor: VOLPATO GIANLUIGI
IPC: C08F291/00
Filed: 1964-11-25
Abstract: Porous ion-exchange resins are prepared by (1) dissolving a preformed linear polymer or copolymer in a mixture of monomeric styrene and divinylbenzene, (2) curing the mixture containing the preformed polymer or copolymer, and, if the polymer or copolymer is not saponifiable, (3a) solvent-extracting the polymer or copolymer from the cured product and there-after, depending on the desired type of ion exchange resin, either sulphonating or chloromethylating and aminating the cured product, and, if the polymer or copolymer is saponifiable, (3b) depending upon the desired type of ion exchange resin, either sulphonating or chloromethylating and aminating the cured product, and thereafter treating the sulphonated or chloromethylated and aminated product with an alkaline solution to remove the polymer or copolymer therefrom, the polymer or copolymer used in step (1) being of a type which does not give rise to a graft copolymer with the mixture of monomeric styrene and divinyl benzene in the curing step (2).  In examples the polymers used are a copolymer of vinyl acetate and diethyl maleate, which is removed by saponification, and polystyrene, which is removed by solution in benzene.