baber/WOPTO huggingface dataset:
Patent GB-231299-A (GB)
Title: Improved method of and means for imparting flexibility to metal strips
IPC: B21D1/02
Filed: 1924-02-29
Abstract: 231,299. Goeggl, H. Feb. 29, 1924.' Physical or molecular structure, altering by mechanical treatment. - Strips, particularly for use in connection with a tool as described in Specification 171,665, are rendered flexible by passing them through a sinuous path during winding of the strip into small coils, so as to avoid the formation of kinks or breaks during winding and also in subsequent conversion of the strips into tubes &c. The strip c in passing from a large roll b to a small roll i is drawn through a set of staggered rolls d - - h so that it travels in a sinuous path. The rolls may either be rotatable or fixed and may be provided with coverings of leather &c., or may be replaced by rods. They may be convex in shape so that the strip is bent sinuously both in a longitudinal and transverse direction.
Patent GB-739943-A (GB)
Title: Improvements in or relating to injection moulding machines
IPC: B29C45/53
Filed: 1954-02-23
Abstract: 739,943. Injection-moulding machines. EYNARD, E. Feb. 23, 1954 [June 2, 1953], No. 5290/54. Class 87 (2). A tubular piston or sleeve 10, disposed between the injection piston 12 and the injection cylinder 1, is freely slidable in the cylinder between the right-hand position shown in Fig. 1 and the left-hand position shown in Fig. 3. The sleeve always communicates with the feed inlet la of the cylinder by means of a slot 10c in the sleeve. Operation:- (1)The mould 7 having been closed, Fig. 1, and having pushed open a normallyclosed valve 6 in the nozzle 5, the injection piston 12 moves to the left. The material A in the sleeve, which is solid or semi-solid, is compressed by the piston into a compact mass that adheres to the sleeve, and the sleeve is thus moved to the left by the piston. The plastified material B in the cylinder 1 is thus forced by the sleeve into the mould, the sleeve being halted by abutment with the torpedo 8, the latter having a recess 8a into which enters a pointed nose 10a on the sleeve. Apertures 10b are formed in the forward end of the sleeve. (2) The mould opens, valve 6 closes, and piston 12 recedes to the right, Fig. 3, leaving an empty space C in the sleeve. Into this space falls fresh material from the hopper 9. (3) Piston 12 again advances to the left from the Fig. 3 position, forcing material through the poles 10b, and since valve 6 is closed the sleeve is forced back to the Fig. 1 position, being stopped by a screwed ring 11. (4) Piston 12 retracts to the right, more fresh material falls into the sleeve, and the position is as shown in Fig. 1. The cycle is then repeated. Thus for each injection into the mould two lots of material are fed from the hopper. In modifications (not illustrated in the Specification) (a) the head 10a of the sleeve may be omitted; (b) the forward stroke of the sleeve may be limited by means other than the torpedo; and (c) the valve 6 may be omitted, the mould itself preventing discharge when it has been filled.
Patent GB-821019-A (GB)
Title: Improvements in gas turbines
IPC: F02C7/264
Filed: 1958-02-19
Abstract: 821,019. Igniting burners. GENERAL MOTORS CORPORATION. Feb. 19, 1958 [Feb. 20, 1957], No. 5334/58. Class 75(3) [Also in Group XXVII] A gas turbine engine igniter comprises a metal sleeve 14 projecting into the combustion zone, 'an insulated electrode 18  directed axially of the sleeve, a tubular electrode 21 fixed in the wall of the sleeve and forming a spark gap with the other electrode, the end of the sleeve nearer the spark gap being of enlarged diameter and having holes 41 directed convergently towards -the tip of the insulated electrode 18, one of the holes 41 having a fuel spray tip 15 mounted in it. The igniter shown has two tubular electrodes 21 which are brazed into two diametrically opposed holes 41 in the sleeve. Air Sowing through the tubular electrodes 21 draws fuel air mixture through apertures 66 and discharges it into the spark gap. The central electrode 18 is hollow and has an aluminium plug 20 for liquid metal cooling of its rounded tip 19. It is mounted within an elbow insulator 25 having a tubular portion 27 for receiving the high tension lead. The insulator 25 seats on a shoulder on an apron 13 fixed to the sleeve 14 and is held thereon by a spring 34 fitted between the insulator and a sheet metal shield 22 brazed to a mounting plate 10. The upper part of the sleeve 14 has two rows of air holes 38 which are skewed. The spray tip 15, Fig. 3, comprises a plug 49 pressed into a tubular body 48 fed with fuel by a tube 47. The fuel passes along two grooves 54 in the plug 49 and impinges on a flaring or conical target portion 53 of the plug.
Patent GB-131028-A (GB)
Title: Improvements in and relating to Electric Arc Lamps.
Inventor: GRYLLS HORACE BERE
IPC: H05B31/00
Filed: 1918-03-27
Abstract: 131,028. Grylls, H. B., and Heape, W. March 27, 1918. Arc lamps.-In a search-light lamp having one electrode c inclined to the axis, this electrode is positively fed by a slotted member the inclination of which determines the relative rates of feed of the two electrodes. As shown, the holder of the inclined electrode c runs by means of rollers on guides e parallel to the electrode. An arm on the holder carries a pin or roller f entering the slot g in the member h, which is moved parallel to the axial electrode a by a screw and nut. The holder of the axial electrode is moved directly by the same screw. By making the feed-member h adjustable in inclination, or by providing interchangeable feed-members of different designs, the rate of feed of the inclined electrode can be varied. The axial electrode may be rotated.
Patent GB-270840-A (GB)
Title: Manufacture of anthraquinone derivatives
IPC: C07C225/22
Filed: 1926-02-25
Abstract: 270,840. Imray, O. Y., (I. G, Farbenindustrie Akt.-Ges.). Feb. 25, 1926. Bis-aminoarylanthrones and bis-aminoarylanthracenes are produced by heating anthraquinone or a homologue thereof with a salt of an aromatic amine having no substituent in the p-position to the amino group. When working for a short time at a temperature below 180‹ C., the firstmentioned products are principally obtained, the compound from anthraquinone and aniline being probably At temperatures above 185‹ C. the products are principally the bis-aminoarylanthracenes of the probable formula According to examples (1) anthraquinone is heated at 175‹ C. with hydrochloride of aniline, o-toluidine, or o-anisidine in presence of an excess of the free base; after rendering alkaline and steam distilling the residue is dissolved in acid and the bisaminoarylanthrone precipitated by alkali : (2) the heating is carried out at 180-185‹ C. and the product diluted with alcohol; the residue consists of the hydrochloride of the bis-aminoarylanthracene which can be decomposed by boiling with water. 2-Methylanthraquinone is also specified as parent material. Magenta is formed as a bye-product when heating anthraquinone with o-toluidine and its bydrochloride.
Patent GB-810732-A (GB)
Title: Improvements in or relating to glass run channels for vehicle windows
Inventor: BARBER HARRY RICHARD
IPC: B60J10/04
Filed: 1956-02-22
Abstract: 810,732. Window frames. PRESSED STEEL CO. Ltd. Feb. 15, 1957 [Feb. 22, 1956], No. 5950/56. Class 20(3) A glass-run channel 1 for a movable vehicle window 6, especially one of compound curvature, comprises a moulded, or extruded, strip of natural, or synthetic rubber, or a flexible strip of synthetic resin material, of general U-form, the two limbs 2, 3 of the strip, and the web 7 connecting them, being formed, on their exterior faces, with re-entrant recesses 4, 8, and on their interior faces with inwardly extending ribs 5, 9 respectively. The glass-run 1 is received within a metal supporting channel 10, the free edges of the limbs 2, 3 being provided with shoulders 12 for engagement with corresponding beads 11 on the In a further modification the limbs 2, 3 diverge in the unstressed condition, the channel 1 being mounted in a supporting channel also having diverging side walls. In a further modification the limbs 2, 3 have flat ends which engage corresponding inwardly rolled end flanges of the supporting channel.
Patent GB-415658-A (GB)
Title: A process and apparatus for the production of hydrogen peroxide
IPC: C01B17/56
Filed: 1934-02-19
Abstract: <PICT:0415658/III/1> Hydrogen peroxide is obtained by distilling solutions of persalts &c. while passing through horizontal tubes internally and externally heated.  Four tubes d may be arranged in series, the tubes being heated internally by tubes b and externally by jackets e.  The depth of the solution may be maintained constant by throttling the exits g and the vapours evolved may be drawn off through tubes h, h<1> and condensed separately.  The tubes may be made of lead, Haveg stoneware, &c.
Patent GB-333893-A (GB)
Title: An optical cabinet for producing a reflection, external to the cabinet, of any object placed inside
IPC: G09F13/14
Filed: 1929-02-20
Abstract: 333,893. Walter, J. Feb. 20, 1929. No Patent granted (Sealing fee not paid). Illusion apparatus. - Apparatus for the optical projection of an erect and magnified image comprises a casing 3, Fig. 1, having an aperture 4 shielded by a mask 6 and containing a concave mirror 1, an inverted object 2, and a light source 7 screened from the mirror by a hood 8. The object 2 is located between the principal focus and the centre of curvature of the mirror 1, and the image 5 is projected to a position between the observer and the front of the casing 3. Fig. 2 shows a modification in which a number of objects 2 are mounted on an intermittently rotated support 9, each being illuminated after being brought into position, either suddenly by lighting the lamp or gradually by opening an iris shutter. The intermittent actuation of the support 9 is effected by ratchet and pawl operated by a solenoid energized at intervals through a commutator, all contained within a case 15 which also encloses a cam or eccentric which through a crank and connecting rod 17 controls an iris shutter 16. A drum 18 bearing indicia on transparent panels 19 visible through an opening 22 is intermittently rotated simultaneously with the support 9 by ratchet and pawl and solenoid mechanism in a case 20 energized through the commutator in case 15. The objects 2 may be stationary or have simple movements.
Patent GB-112564-A (GB)
Title: Improvements in Adjustable Hinges or Joints for Wind-screens of Motor-cars and the like.
IPC: B60J1/04
Filed: 1917-04-25
Abstract: 112,564. Auster, Ltd., and Auster, A. C. April 25, 1917. Pivot adjustments.-Relates to hinges for adjusting the wind-screens of motor-cars &c. of the kind comprising an outer tube carrying the screen and a fixed inner member which can be expanded to engage frictionally the interior surface of the tube to set the screen at the required inclination. According to the invention, a split bar 3, Fig. 4, is expanded by a screw 6 which screws through one part and abuts against the other part of the rod. The tube 2 is slotted at 7 for the passage of the screw which in these devices does not move with the screen. There may be a split rod projecting a short distance into each end of the tube 2; or a continuous rod may be split along the middle portion; or two half-round bars 3, Fig. 5, may overlap at the middle portion. In a further modification, the bar takes the form shown in Fig. 7, the expansion being effected by a coned part 10 on the screw.
Patent GB-567299-A (GB)
Title: Improvements in crushers
IPC: B02C2/04
Filed: 1943-04-12
Abstract: 567,299. Gyratory crushers. BROWNING, R. E. April 12, 1943, No. 5839. [Class 59] In gyratory crushers of the type described in Specification 532,493, in which a conical, annular crushing member gyrates within a fixed annular mantle so that its axis describes an inverted cone having its apex below the crushing zone, the arrangement is such that the movement of the point on the moving surface that makes the closest approach to the fixed surface has components in downward and radial directions the ratio between which lies between 5 and 7; further, the obliquity of the gyratory head can be varied and means are provided for effecting its lubrication. The machine comprises a cylindrical frame 4 in which is mounted a sleeve 7 in which is a hub 10 mounted in bearings 11 and 12 and driven by bevel gear from a shaft 24. The sleeve 7 supports a head 40 with two annular spherical concentric surfaces 43, 44 between which is an oil seal ring 48 and an annular oil-collecting channel 49 draining, to the interior of the sleeve. The surface is interrupted by an oil groove 51 supplied through passages 35, 36 from a pump driven by worm gear 32 from the shaft 24. Mounted on the surface 44 is the crushing head liner 53 fitted in a conical head carrier 68 having a skirt 72 with a spherical surface 72a conforming to the surface 43 of the spherical head and formed with a recess 73 for the oil ring 48. A crusher head 74 is secured to the head 68 by a screw 75 in a recess 76. The inclined central axis 34d of the shaft extrusion 79 meets the vertical axis 34e of the main shaft section 80 at the point 81, and the shaft extension comprises a taper portion 79a with threaded end 79b on which an eccentrically bored adapter sleeve 82 is adjustably fitted whereby the effective inclination of the shaft extension 79 may be varied. The shaft extension is journalled in the head carrier 68 by a bearing 92 and the cylindrical portion 80 of the shaft section, driven by a key 99, is supported by a bearing 100. The shaft is provided with an oil passage leading from the passage 35 to the upper end over which it passes to the bearings 92, 100, 12 and 10. The bull ring 110 has a lower surface contacting with a matirig surface on the frame 4 and comprises a frustum 118 and cylindrical bore sections 119, 120 in which is fitted the mantle carrier 122. Threaded segments 129 of the bull ring are arranged to engage the threaded portion 125 of the mantle carrier which is provided with a hopper portion 147. The mantle 171 is retained by lugs 174 and U-bolts 175.
Patent GB-671159-A (GB)
Title: An improved silencer or muffler for engine and other gas exhausts
IPC: F01N1/00
Filed: 1950-03-09
Abstract: 671,159. Exhaust silencers. WALKER, G. B. March 9, 1950, No. 6006/50. Class 7(ii) Engine or other exhaust gases passing through an inlet 3 into a blanked-off pipe 1 escape with a swirling motion, through openings 8 formed by radially bent-in lips 9, into an expansion chamber 5 formed by a divergent casing 2, one end of which forms the inlet 3, frictionally receiving the pipe 1, and the other end of which is flanged for attachment to a converging outlet member 16 and to a spider 13 supporting both the closed end 7 of the pipe 1 and a tapered member 18 co-operating with the member 16 to prevent the formation of a low pressure zone behind the pipe 1. A cut-away 20 in the spider flange co-acts with circumferential slots 21 in the flanges of the members 2, 16 to allow drainage of condensed water.
Patent GB-621386-A (GB)
Title: Improvements in or relating to signal generating system
IPC: H03B5/18
Filed: 1946-02-26
Abstract: 621,386. Electric resonators; frequency stabilization. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 26, 1946, No. 6030. Convention date, Feb. 26, 1945. Drawings to Specification. [Class 40 (viii)] Ultra-high frequency, such as that of a magnetron generator, is stabilized by means of an anti-resonant circuit, one limb of which comprises a relatively low impedance of high Q, obtained by transforming a higher impedance of lower Q by means of a length of waveguide or the like. The drawings are similar to Figs. 1 to 17 and 26 of Specification 621,385, less the parts relating to modulation means, and the Specification discusses mathematically the optimum conditions for stabilizing frequency.
Patent GB-563551-A (GB)
Title: Fuel pump
IPC: F02M45/12
Filed: 1943-02-15
Abstract: 563,551. Fuel injection pumps. AKTIEBOLAGET ATLAS DIESEL. Feb. 15, 1943, No. 6044/44. Convention date, March 7, 1942. Divided out of 563,539. [Class 102 (i)] In a fuel injection pump for internal-combustion engines, the fuel is injected in two stages, but continuously, in the first stage at a relatively low pressure and in the second stage the pressure is increased from the value of the first stage to its maximum value without any lowering of pressure.taking place between the two stages, by means of a single radiallyacting cam 8 having a part a<1>-b<1> with a slight rise sufficient to keep the preliminary injection at a substantially constant pressure, and a following part b<1>-c<1> with a sharper rise to move the pump piston 2 rapidly during the main injection. Specification 545,559 is referred to.
Patent GB-1421834-A (GB)
Title: Electric exposure time control arrangement for a camera
IPC: G03B7/083
Filed: 1973-02-07
Abstract: 1421834 Shutter control circuits ASAHI KOGAKU KOGYO KK 7 Feb 1973 [7 Feb 1972]  6094/73 Heading G2A In a shutter control circuit, a number of pulses corresponding to scene brightness is generated and stored before shutter opening, at shutter opening reference pulses are generated at a constant rate and stored and the shutter is closed when the two stored voltages bear a predetermined relation with each other. As shown, a U.J.T. 11 sends pulses to a storage capacitor 19 at a rate determined by the light incident on a photo-conductor 5 until, after a time determined by an R.C. circuit 7, 8, a relay 4 opens a switch 3 to terminate pulse generation. On shutter opening a switch 25 is closed and a U.J.T. 26 sends pulses to a storage capacitor 33 at a fixed rate. A differential amplifier 22, 35 energizes a shutter closing electromagnet 39 when the stored voltages are equal, resistors 7, 23 set in diaphragm aperture and film speed. In Fig. 2 (not shown) resistor 7 and photo-conductor 1 are swopped over so that before shutter opening pulses are generated at a fixed rate for a photo-electrically controlled period. Fig. 3, 4 (not shown) show a stable multi-vibrator and R.C. phase-shifting circuits for generating pulses; the circuit of Fig. 5 (not shown) includes log compression diodes (49, 54); Figs. 7a, b and 8 (not shown) show feedback circuits for improving the charging characteristics of capacitors 19, 33. and Fig. 9 (not shown) shows a monostable multi-vibrator for correction to the U.J.T. outputs to shape the pulses.
Patent GB-1376238-A (GB)
Title: Trench shoring frame
IPC: E02D17/08
Filed: 1973-02-09
Abstract: 1376238 Trench-shoring frames HUDSWELL MORRICE Ltd 9 Feb 1973 [10 Feb 1972] 6176/72 Heading E1E In a trench shoring frame adapted to be advanced along the trench as by means of jacks, the forward or cutting end 2, 4, 6, 8, 10 of the frame is provided with one or more pivotal platforms 16, 18 which in the horizontal position are adapted to rest on the forward most upper edges of the frame and on the unexcavated ground in front thereof in order to support an excavating machine engaged in pipe laying activities for details of which the Specification and remaining drawings (not shown), should be referred to.
Patent GB-1527291-A (GB)
Title: Magnetic developer powder for developing electrostatic latent image and method of making same
IPC: G03G9/09
Filed: 1976-02-17
Abstract: 1527291 Electro-photographic developer HITACHI METALS Ltd 17 Feb 1976 [21 Feb 1975] 06205/76 Heading G2C A developer powder of resistivity between 10<SP>2</SP> and 10<SP>8</SP> ohm cm comprises spherical particles of resistivity of not more than 10<SP>12</SP> ohm cm and comprising a polymeric binder, magnetic particles and electrically conductive particles in which are embedded in the surface futher conductive particles so that the resistivity of the surface is less than the core. Specified binders are (a) a mixture of wax and ethylene/vinyl acetate copolymer, (b) polystyrene and (c) epoxy resin whereas C black is the specified conductive particle and magnetite, ferrites, chromium oxide are specified magnetic particles. A dry lubricant such as silica or alumina may be added to the particles. The powder may be made by mixing the binder, magnetic particles and conductive particles at a temperature at which the binder fuses, pulverizing the cooled mixture and dispersing the particles produced into a hot air stream to produce spherical particles, adding the 2<SP>cd</SP> conductive particles and mixing in a hot air stream to embed the 2<SP>cd</SP> particles in the surface.
Patent GB-721166-A (GB)
Title: Improvements in and relating to a partition structure
IPC: E04B2/80
Filed: 1952-03-10
Abstract: 721,166. Screens; furniture combinations. GLOBE WERNICKE CO. March 10, 1952 [Nov. 14, 1951], No. 6214/52. Classes 52 (2), 52 (3) and 52 (4). A panel for attachment to tables or desks to form a partition or screen comprises vertical and horizontal frame members 24, 25 covered on both sides with plywood 26 is provided with vertical edge strips 27 connected to the frame members 24 by tongues 28 and grooves. The strips 27 are formed in their side faces with threaded holes 27a to receive necked screws 21 which can be projected to engage with desks, tables, &c., and in their outer faces with recesses 30 within each of which is mounted a strap member 31 formed with a keyhole slot to cooperate with a necked screw 21 carried by a post member 20. One of the strap members 31 on each strip 27 has a spring strip 34 associated therewith to retain a screw in the narrow end of the keyhole slot. A levelling screw 22 may be provided in the bottom of the panel. Specification 721,167 is referred to.
Patent GB-743594-A (GB)
Title: Improvements in and relating to adhesive tapes
IPC: C09J7/50
Filed: 1953-03-06
Abstract: 743,594. Adhesive tapes. LOHMANN, J., BARTH, G. A. and LOHMANN, K., [trading as LOHMANN KOMM.-GES., FIRMA]. March 6, 1953 [March 7, 1952], No. 6305/53. Class 140. In making pressure-sensitive adhesive tapes, a finished synthetic resin, regenerated cellulose, or cellulose derivative film has solid absorbent particles fixed in the surface, and confined to the surface layer only, and adhesive is applied to the surface in which the particles are fixed. The particles may be fixed by treating the film with solvent or swelling agents containing fine grained inorganic or organic substances, e.g. metal oxides, such as titanic or zinc oxides, mica, silica gel, talcum, quartz, powdered glass, asbestos, or insoluble synthetic resin. The absorbent effect of the particles may be increased by pre-treatment with benzine or benzene-soluble resins or synthetic resins. In examples (1), (3) polyvinyl chloride film is treated with a cyclohexanone-zinc oxide mixture or a mixture of colophony, cyclohexanone, benzine, and silica gel, respectively; (2) cellulose acetobutyrate film is treated with a mixture of mica in a ketone. In all cases the adhesive, say rubber or synthetic rubber and resin in benzene or benzene solution, is then applied.
Patent GB-720790-A (GB)
Title: Improvements relating to projectile fuzes
IPC: F42C15/24
Filed: 1953-03-06
Abstract: 720,790. Projectile fuzes. INVENTA AKT.- GES. FUR FORSCHUNG UND PATENTVERWERTUNG. March 6, 1953 [March 21, 1952], No. 6307/53. Class 9(1).  The movable actuating member 1 of the safety fuze of a projectile has a screwthreaded portion 2 surrounded by a ring 4, which has an inwardly directed edge 5 and is radially movable so that on axial displacement of the member 1 a gyratory movement is imparted to the ring thereby slowing down the movement of the member 1. The portion 2 is disposed parallel to or along the axis of the projectile and is urged towards the point of the projectile by a spring 6. Instead of ring 4, a body of square or rectangular cross-section may be used, the opposed sides of which are adapted to engage the threads of the portion 2. The rings or rectangular body may be provided with more than one pair of opposed edges adapted to engage with the screwthreaded portion 2.