baber/WOPTO huggingface dataset:
Patent GB-605281-A (GB)
Title: Devices for the adjustment of electrical circuits
IPC: H03J3/00
Filed: 1945-11-27
Abstract: 605,281. Tuning tools for adjusting radio apparatus. COSSOR, Ltd., A. C., and BELL, D. A. Nov. 27, 1945, No. 31962. [Class 40 (v)] A trimming tool for rotatable tuning elements has a tool-head which is driven both with a continuous movement in either direction and a slight oscillatory movement. Such a tool used in the arrangement shown in the Figure will automatically adjust a circuit to resonance. Radio receiver 1 which is to be lined up has an amplitude modulated signal fed to its input terminals from generator 3. The modulation output is rectifed in circuit 5 and the resulting D.C. potential is connected by means of distributer 7 to the grids of valves 8 and 9 alternately, to control their gain. The grids are also driven in push-pull by a 50 c/s. supply from transformer 10 and since the anodes are connected in parallel an output results which depends in magnitude and sense on the relative gain of the two valves. This output after passing through amplifier 22 is used to drive motor 12 which in turn drives tool-head 11 through epicyclic gear 14 in a direction appropriate to the sense. A second distributer 21 driven synchronously with the first applies power alternately to the solenoid windings 19, 20 to cause core 18 to vibrate springy strip 17. This vibration is communicated to lug 16 carrying the " fixed " element of the gear and thus gives the tool head the oscillating movement. Since the distributers are synchronized, when the tool oscillates to one side the grid of valve 8 is connected to the output of detector 5 and when it oscillates to the other side the output is connected to valve 9. Thus, when the oscillating tool head is engaged with a mistuned trimmer, an unequal bias is applied to these valves, and the resulting 50 c/s. output causes the motor to drive the tool in the correct direction until the " on-tune " point is reached when the differential output of the two valves is zero and the motor stops. In one modification, the oscillatory movement is produced by rocking the intermediate wheel of a differential gear. In another modification, distributer 21 is replaced by a multivibrator and distributer 7 by an electronic switch. Several tools may be used at once and either driven successionally or simultaneously. In the latter case, different vibration speeds could be used to differentiate between the effects of the different tools.
Patent GB-628134-A (GB)
Title: Improvements in or relating to stereotype plate finishing machines
IPC: B23C3/30
Filed: 1946-10-28
Abstract: 628,134. Printing-surfaces. GOSS PRINTING PRESS CO., Ltd. Oct. 28, 1946, No. 31978. Convention date, Nov. 16, 1945. [Class 100 (ii)] In a'stereotype plate finishing machine having means to support a plate with its interior surface available for machining operations, milling means are provided which are movable axially of the plate, and at preselected points in the course of such movement are also movable automatically into and out of an operative position, so as to form a plurality of axiallyspaced recesses in the interior surface of the plate adjacent the straight edges thereof. A semi-cylindrical stereotype plate 23, Figs. 1, 6, 14, 17, is positioned in and removed from the arch 20 as described in Specification 628,133 and while so positioned its interior surface, which is provided with recesses 63 between ribs 64, is finished by a boring tool and provided with two parallel series of slots 66 adjacent its longitudinal edges by milling cutters, the slots having straight edges 67 inclined towards the edge and parti-cylindrical sides 68. The boring and milling tools are movable axially of the plate while in operation, and are carried on a common slidable frame 72, Fig. 9, reciprocated by a lead screw 102 driven by an electric motor 100, reversible, and having limit switches 105, 106. The boring tool comprises a boring head 76, carrying boring bits 77 and mounted on a heavy shaft 75 journalled in the frame 72. A plate 80A integral with the frame 72, and a plate 80 bolted thereto, each carry spring-urged rollers 81 to press the plate against the arch adjacent the boring tool. An electric motor 90 drives a shaft 91 carrying a slidably keyed pulley 93 moved axially on the shaft by a bracket 94 on the frame 72, whereby the shaft 75 is driven, in any position of the frame 72, from the pulley 93 by a belt 95<SP>1</SP>, pulley 95, shaft 96, pinion 97 and gear 98, thereby rotating the boring head. The milling cutters 113, Figs. 1, 6 and 10, are each, together with chamfer milling cutters 113a, carried on a shaft mounted in a housing 115 and driven by bevel gearing from a shaft 109, which is driven from the gear 98 by a pinion 108. The housings 115 have sleeve-like ends mounted for oscillation in the frame 72, whereby the cutters 113 are oscillatable about the shafts 109 into and out of operative position by means of depending levers 120. The levers 120 are oscillated by slide members 121 carrying cam rollers 122 moving in stationary cam tracks 135. On forward movement of the frame 72, the rollers pass along the track 130, to form four slots 66, and displace a switch 132, returning along a track 131 and through a spring-loaded star switch 133. Switches are provided to start, stop and reverse the motor 100, start and stop the motor 90, and energize signal devices such as lights to indicate that the plate is securely held in the arch, has been finished, and that the machine is ready to receive another plate.
Patent GB-1294499-A (GB)
Title: Wheeled spraying apparatus
IPC: A01M7/00
Filed: 1970-07-02
Abstract: 1294499 Wheeled spraying apparatus H K PRICHARD 2 July 1971 [2 July 1970] 32046/ 70 Heading AID A spraying apparatus for spraying liquids such as fertilisers or pesticides, has a frame 11 supported on a wheel 18, a spray tube 40-46 connected by pipe union 48, flexible hose 50 and pipe union 49 to a container 15 preferably made from a plastics material and pump means comprising hose 50 which is, in use, successively squeezed and released by means of actuating members 51 mounted symmetrically on wheel 18 and which turn with the wheel. The frame 11 preferably has two upright members (only one, 14, shown) these being interconnected by a 'U' bracket 20 passing through the handle 16 of the container and by handle 23 which is secured by wing nuts 25. A stand 27-31 may also be provided, this being secured by wing-nuts 32.
Patent GB-357401-A (GB)
Title: Improvements in or relating to base-exchanging filters
IPC: B01J47/02
Filed: 1930-10-24
Abstract: In a base-exchange filter a granular filtering material whose specific gravity is less than that of the base-exchanging filtering material is disposed directly on top of the base-exchanging filter material without an intermediate perforated support.  The granular filtering material may possess greater mechanical durability than the base-exchanging filtering material and may be, for example, crushed or granulated porous slag or moler brick.  The fineness of grading of the lower layers of the granular filtering material may approximate to the fineness of grading of the top layers of the base-exchanging filtering material.
Patent GB-341946-A (GB)
IPC: H05B3/66
Filed: 1929-10-22
Abstract: 341,946. Electric resistance furnaces. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Otis, A. N.; 138, Parkwood Boulevard, and Hegel, G. W.; 1024, Baker Avenue, both in Schenectady, New York, U.S.A.) Oct. 22, 1929, No. 32072. Convention date, Oct. 24, 1928. [Class 39 (iii).] The refractory framework supporting the resistance 25 cannot be removed until the resistance has been removed. The framework comprises one or more transverse metal beams 26 with offset lugs 28 engaging recesses in the side walls and projections 29 engaging internally the ends of refractory tubes 27 supported at their other ends in recesses 31 in the end wall or by projections on another beam. The convolutions of the resistances are engaged by oval or circular projections 34 on refractory spacers 33 engaging grooves in the roof 11. The furnace front includes a portion 15 removably bolted thereto to enable the resistance and its supporting frame to be removed. The metal hearth pan 39 covers resistances 37 supported by refractory spacers 38. Terminal strips secured to the resistances pass through the end wall to a box 43. Apertures 41, 42 are provided for the insertion of a thermo-couple and a temperature limiting fuse. The counterweighted furnace door 17 is arranged to slide vertically and is provided with a sight aperture 21 closed by a pivoted cap 22.
Patent GB-678947-A (GB)
Title: Improvements in or relating to a process for the preparation of fibre from seed flaxstraw
IPC: D01C1/02
Filed: 1949-12-15
Abstract: 678,947. Obtaining fibres. ABBEY, A. (Talert Talalmanyokat Ertekesito Nemzeti Vallalat). Dec. 15, 1949, No. 32223/49. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 22, 1950.] Drawings to Specification. Class 120(i) Fibres are obtained from seed flax straw by degumming the straw, drying it to a moisture content of 7-14 per cent, passing it through a series of rollers to mildly crush it and removing part of the shive by shaking and suction. The straw in bales is degummed by bacterial retting for 2-3 days at a temperature increasing from 25‹C to 30-40‹C. It is dried initially in a centrifuge or press to about 200 per cent water content and then by heat and passed to series of spirally grooved rollers. Shive separated in the crushing is removed by suction. The straw passes to shaking apparatus where further shive is removed. The straw may pass through several series of rollers and shakers which may be enclosed in air-conditioned chambers.
Patent GB-1076295-A (GB)
Title: Food grill with reversible gas-heated hot plate
IPC: A47J37/06
Filed: 1965-07-28
Abstract: 1,076,295. Grilling apparatus. G. ROSA. July 28, 1965 [Dec. 10, 1964], No. 32227/65. Heading A4D. [Also in Division F4] In a grill, in which a grill plate a is reversible for burning off encrusted residues, a food-supporting grid c is vertically adjustable so that it can be variably positioned above the hot plate. Grid c rests on rods e, which are displaced vertically, on moving lever d, and is maintained in the adjusted position by an additional lever arm, having a brake shoe n engaging a stationary friction plate o. Plate a has # grooved surfaces so that, on moving grid c to its lowermost position, the food thereon comes into contact with the ribs between the grooves. The plate a is pivotable about a horizontal axis g and, to enable it to be reversed, grid c is removed and a latch k is released to allow the burners b to hinge down about pivots h. Dash-pot j controls the falling movement of the burners b.
Patent GB-264298-A (GB)
Title: Improvements in or relating to ball castors for furniture
IPC: B60B33/08
Filed: 1925-12-21
Abstract: 264,298. Craymer, H. J., and Simpson, R. P. Dec. 21, 1925. Castors. -In ball castors wherein rollers are mounted in the upper part of the casing, the rollers 4 have integral axles 12 shaped to bear against the sides of the casing 1 and against an upper disc of fibre 10. The disc is slotted, and the casing recessed to accommodate the rollers which are held in place solely by the pressure of the ball 8.
Patent GB-1385403-A (GB)
Title: Process for preparing oxidised carbohydrates
IPC: C11D3/22
Filed: 1972-07-11
Abstract: 1385403 Oxidizing carbohydrates UNILEVER Ltd 11 July 1972 [14 July 1971] 32324/72 Heading C2C [Also in Division C3] A process for preparing oxidized carbohydrates comprises contacting the carbohydrate (as defined below) with silver oxide in an aqueous alkaline medium preferably comprising an alkali metal hydroxide. The oxidation may be carried out in the presence of a stream of air or oxygen or ozone optionally in presence of as co-catalyst Pt, Pd, Cr, Cu, Zn, Fe, Co, Rb, Nb, V, W, or Mn or an oxide thereof. The carbohydrate may be a polysaccharide (see Division C3) or a disaccharide or alkyl glycoside. In the examples sucrose is oxidized to give a mixture of tetracarboxyl sucroses; methyl-α-D-glucoside gives disodium - α - methoxy - α<SP>1</SP>- hydroxymethyl-oxydiacetate; cellobiose, maltose and lactose give the corresponding tetracarboxyl derivatives; methyl-#-fructopyranoside gives (α-methoxy-α<SP>1</SP>-hydroxymethyl)oxydiacetate; methyl #-glucuronoside gives trisodium (α - methoxy - α<SP>1</SP> - carboxy) - oxydiacetate and ethyl #-D-fructofuranoside gives disodium (α - methoxy - α<SP>1</SP> - hydroxymethyl) oxydiacetate.
Patent GB-1007198-A (GB)
Title: Shift mechanism for writing instruments, such as ball-point pens
IPC: B43K24/08
Filed: 1963-08-15
Abstract: 1,007,198. Retractable ball - point pens. H. BROSS. Aug. 15, 1963 [Aug. 16, 1962], No. 32374/63. Heading B6P. In a retractable ball-point pen of the type comprising an axially displaceable, non-rotatable actuating member such as a push button 3 with radially projecting lugs 12 having cam surfaces 19, Fig. 4, and a rotatable, axially displaceable locking member 6 with radially projecting lugs 11 having cam surfaces 19, and in which the lugs 11 and 12 co-operate with axial grooves formed in the internal surface of the pen barrel 1, the locking member 6 is spring-loaded' with a compression spring 8 which is relatively weaker than the main spring 9. The number of lugs on the locking member 6 is half the number on the actuating member 3. The grooves are arranged alternately in pairs, one groove being associated with the projected position and having a cross-section such that the lugs 11 of the locking member 6 are unable or are only partly able to be inserted in this groove. The second groove is associated with the retracted position and has a cross-section such that the cams 11 are able to be inserted further into this groove than the first groove. In Fig. 5 (not shown) the retracting mechanism is actuated by the cartridge of the ball-point pen by depressing the tip thereof. In this alternative embodiment, the grooves in the barrel have their open ends facing the rear of the pen barrel; that is in the opposite direction to the push button embodiment shown in Fig. 1. An alternative of the embodiment of Fig. 5 is to have the tip shield as the actuating member.
Patent GB-1094024-A (GB)
Title: The method of setting up an electrode and a workpiece for the spark erosive machining of the workpiece and a fixture therefor
IPC: B23H1/00
Filed: 1966-07-19
Abstract: 1,094,024. Spark erosion. DEUTSCHE EDELSTAHLWERKE A.G. and ALLGEMEINE ELEKTRICITATS-GESELLSCHAFT. July 19, 1966 [July 27, 1965], No. 32429/66. Addition to 1,039,071. Heading B3V In the spark machining of large workpieces 1, a fixture is clamped thereto and comprises a head piece 4 carrying electrode feed means 5, a slide plate 7 guided on columns 3 and a base plate 2 having an aperture 10 for passage of the electrode 8. The fixture is secured to the workpiece by clamps 12 and screws 13 or by permantent magnets. A dielectric bath 14 is sealed to the workpiece at 15 which may include apacking or acement joint.
Patent GB-1420758-A (GB)
Title: Anti-ulcer compositions
IPC: C07D295/185
Filed: 1972-07-12
Abstract: 1420758 Anti-ulcer compositions containing piperidine derivatives JOHN WYETH & BRO Ltd 12 July 1973 [12 July 1972] 32478/72 Heading A5B [Also in Division C2] An anti-ulcer composition comprises a compound of the formula: wherein A is an alkylene chain containing 2 or 3 carbon atoms, which chain may contain a lower alkyl substituent; R represents H or up to 5 nuclear methyl groups; R<SP>1</SP> and R<SP>2</SP> are the same or different and represent H, C 1 -C 6  alkyl or aralkyl, wherein the alkyl portion contains from 1 to 6 carbon atoms; or R<SP>1</SP> and R<SP>3</SP> together with the nitrogen atom to which they are attached represent a piperidino group, or a pharmaceutically acceptable acid addition salt thereof; and an antacid ingredient.
Patent GB-1500669-A (GB)
Title: Power steering device
IPC: B62D5/22
Filed: 1976-08-04
Abstract: 1500669 Power-assisted steering mechanism DBA SA 4 Aug 1976 [21 Aug 1975] 32518/76 Heading B7H In power-assisted steering mechanism comprising an hydraulic steering actuator 14 having chambers 90, 92 separated by a piston 94, and a steering control valve 10 which is connected between a constant-output hydraulic pump 34 and a reservoir 38 and is responsive to application of torque to a steering wheel to vary the relative pressure in the chambers 90, 92, there is provided between the pump 34 and a reservoir 72 a by-pass passage 76, and a by-pass control valve 12 responsive to the pressure differential between the chambers 90, 92 controls flow through the by-pass passage. The by-pass control valve 12 includes a spool 60 centred by springs 68, 70 and subjected at opposite ends to the respective pressures in the chambers 90, 92. When the steering wheel is rotated and a pressure difference appears between the chambers 90, 92 flow through the by-pass passage is interrupted due to movement of the spool 60 away from a neutral position in which a central groove 71 is aligned with the by-pass passage. When the pressure difference exceeds a predetermined value one of side grooves 80, 82 is aligned with the by-pass passage to allow a reduced by-pass flow. A restriction 78 is provided in the by-pass passage 76 downstream of the by-pass control valve 12. Fig. 2 shows a steering control valve 210 which is a practical embodiment of the valve 10 shown diagrammatically in Fig. 1 and comprises a slidable valve member 140 having a radial pin 42 by means of which the member 140 is axially displaced, and two axial fingers 144, 146 co-operating with ball valves 148, 150 which control communication of the chambers 90, 92 with the pump 34 and reservoir 38. The radial pin 142 engages a groove 240 in a sleeve 236 which is slidably coupled by splines 238 to an input shaft 214 and is in screw-threaded engagement with a pinion 216 coupled to the input shaft 214 by a torsion bar 215.
Patent GB-309095-A (GB)
Title: Improvements in the hydrogenation of coal, tars, mineral oils and other carbonaceousmaterials
IPC: C10G1/06
Filed: 1927-12-02
Abstract: 309,095. Imperial Chemical Industries, Ltd., and Gordon, K. Dec. 2, 1927. Right to Patent relinquished. Hydrogenation, destructive.-The destructive hydrogenation of carbonaceous materials is carried out at pressures of from 300-1000 atmospheres. When pressures of 300-500 atmospheres are used a temperature of 420‹ C. is preferably employed, while higher temperatures of 450-500‹ C. are used in conjunction with pressures of 500 to 1000 atmospheres. Similar apparatus to that described in Specification 309,258 may be used, the walls of the apparatus being much thiclier and constructed of alloyed steel.
Patent GB-1058578-A (GB)
Title: Improvements in or relating to the manufacture of concrete articles
IPC: C04B28/02
Filed: 1964-08-11
Abstract: Cement compositions comprise cement (preferably Portland), sand, and chopped strand glass fibre, e.g. of 1/2 -inch length, and may also contain polyvinyl acetate to provide a gauging solution when the compositions are mixed with water.  The compositions are used to make concrete articles in moulds by mixing with water to form a fibrous mass, covering the inside of a mould, e.g. to a thickness of 1/2 inch, taking up excess water by applying small quantities of dry cement-sand mixture to form a layer on the glass-fibre reinforced mix, and then compacting the combined layers.
Patent GB-855449-A (GB)
Title: Improvements in containers made of paper, film or like material
Inventor: HOPKINS PHILIP ARTHUR
IPC: B65D33/16
Filed: 1957-10-18
Abstract: 855,449. Paper and like bags. ROBINSON Ltd., E. S. & A. Oct. 17, 1958 [Oct. 18, 1957], No. 32624/57. Class 94(2). A bag 2 made of paper, polythene, cellulosic film or other material of single or laminated form, is provided with one or more holes 3 and a separate closure member 5 coated on both inside sides with latex or other pressure sealing adhesive which is applied to the bag over the holes so that the front and back portions of the closure adhere together through the holes. An opening 6 may be provided to form a carrying handle. In a modification the closure member may be part of a stiffener 8 which has one part inside the bag or as shown in Fig. 3, outside the bag. The stiffener may have an upturned portion 9 secured through a lower hole 3 in the bag on to an adhesive surface on the front side of the stiffener 8. The stiffener may also be used to secure a number of bags together through aligned holes 3.
Patent GB-788962-A (GB)
Title: Method of and apparatus for heading tubular members
IPC: B21D41/00
Filed: 1955-11-15
Abstract: 788,962. Upsetting; jointing by forging; making waveguides. WESTERN ELECTRIC CO., Inc. Nov. 15, 1955 [Nov. 17, 1954], No. 32628/55. Classes 83 (2) and 83 (4). A method of heading a metal tube 11 comprises clamping the tube against longitudinal movement, positioning a former 21 around the end to be headed, supporting the tube internally by means of a mandrel 13 and applying force to the said end of the tube to upset it against the former, Fig. 2 (not shown). The tube 11 which is preferably for use as a waveguide, is of circular or rectangular cross-section, Figs. 8, 9 (not shown), and is supported against a stop 12 and clamped between jaws 17 which may have serrated surfaces 18. A two-part former 21 having an annular groove 22 is positioned over the tube and held against the jaws 17 by a pad or pads 23 actuated by a hydraulic piston 24. A lubricated mandrel 13 which may be of slightly longer diameter than the bore of the tube, is then driven into the bore by a hydraulic piston 14. The end of the tube is upset by an annular punch 29 connected to a member 32 actuated by a hydraulic piston 33 and simultaneously a retainer 34 passes over the former 21 to prevent lateral movement thereof. The movement of the punch and retainer may be controlled in dependence upon the resistance to flow of the tube metal. The upset head enters the groove 22 in the former. A steel reinforcement ring may be shrunk on the retainer 34. In another embodiment, Fig. 5 (not shown) the former and retainer are formed as an integral unit. In a further embodiment, Fig. 6, the former is provided by a flange 43 which is to be secured permanently to the end of the tube. The flange has a stepped bore 47 which receives the upset head 44 and the tube is also upset behind the flange into a recess provided in the jaws 17 to form a collar 49. Alternatively a series of projections may be provided behind the flange or a collar 49 may be turned on the tube before heading or the flange may be secured to the tube by serrations formed in the contacting surfaces. The flange may be of circular or rectangular form and may be of the kind described in Specification 781,144, [Group XXVIII].
Patent GB-259429-A (GB)
Title: Improvements in and relating to bobbins
IPC: B65H75/14
Filed: 1925-12-28
Abstract: 259,429. Beedie, D. S. Dec. 28, 1925. Bobbins which can be dismantled for packing comprise a wood shank d and removable metal end pieces formed by two discs b, b<1> punched as shown to form two cups, the sides c, c<1> of which can be joined by soldering, crimping, or otherwise. The centres to receive the shank d are punched inwards to form serrations e, e', the inner surfaces of which are roughened. The parts e, e<1> are surrounded by a similarly roughened clamp f secured to a lug punched inwards in the base of the part b<1> by a nut and bolt g, which can be adjusted by a box key inserted through a hole in the flange c<1>.