baber/WOPTO huggingface dataset:
Patent GB-1309412-A (GB)
Title: Weeding and cultivating tool
IPC: A01B1/10
Filed: 1970-07-21
Abstract: 1309412 Weeding and cultivating tool M E ADAMS 21 July 1970 [23 July 1969] 35255/70 Heading A1B A hand tool comprises a pair of disc-like cutting blades 44, 46, secured together at adjacent edges, a handle connection 50 fixed to these adjacent edges, the blades having continuous cutting edges 40, 48 around their open peripheries, and each blade extending at a slight downward angle from the connection. The tool may be formed from a sheet metal blank or may be made up from two halves. The leading and trailing edges 52, 63, of the handle connection have cutting edges. The disc-like blades may be of polygonal shape and may be flat or concave.
Patent GB-206738-A (GB)
Title: Improvements in step grates for boiler furnaces
IPC: F23H7/06
Filed: 1922-12-28
Abstract: 206,738. Babcock & Wilcox, Ltd., (Deutsche Babcock-&-Wilcox Dampfkessel- Werke Akt.-Ges.). Dec. 28, 1922. Grates.-In a furnace step-grate comprising pivoted steps or plates such as 2, the steps are tipped in succession to produce the desired movement of the fuel by means of moving cam members such as 6, provided with two working surfaces, so related, that one surface is raising a step 2 while the other is allowing the step below (previously raised) to fall gradually. The steps 2 may be pivoted as shown, or on journals midway of their end faces. In a modification, the cams 6 on a moving chain are replaced by star cams on a shaft arranged below and transversely to the steps.
Patent GB-1501222-A (GB)
Title: Process for the selective allylation of ortho-alkoxyphenols
IPC: C07C67/00
Filed: 1975-08-15
Abstract: 1501222 Selective allylation of o-alkoxyphenols RHONE-POULENC INDUSTRIES 15 Aug 1975 [16 Aug 1974] 35309/77 Divided out of 1501221 Addition to 1402974 Heading C2C A process for preparing an ortho-alkoxy-paraallylic phenol comprises allylating an orthoalkoxy-para-unsubstituted phenol with an allylie halide, allylic sulphonate or allylic sulphate in the presence of an aqueous solution of an alkali metal hydroxide or alkaline earth metal hydroxide at a temperature greate than 70‹C but not exceeding 150‹ C., acidifying the reaction mixture and recovering the allylated reaction product. In the examples guaiacol is reacted with allyl chloride under the reaction conditions of the present process to produce p-eugenol.
Patent GB-399342-A (GB)
Title: Improvements in self-adjustable pistons for internal combustion engines
IPC: F02F3/00
Filed: 1932-12-13
Abstract: 399,342. Pistons. BOLLA, C., 115, Corso Stupinigi, Turin, Italy. Dec. 13, 1932, No. 35340. [Class 122 (i).] In a piston of the kind in which the head and skirt are separated by a circumferential slot 3, connecting webs 5 of anglesection extend between the bosses 6 and the head 1, and a number of reinforcing and cooling ribs 8 are formed on the underside of the head parallel to the gudgeon-pin axis. The skirt is provided with an inclined slit 10.
Patent GB-391075-A (GB)
Title: Propelling pencil
IPC: A24C5/58
Filed: 1932-12-13
Abstract: 391,075. Pencil holders. DILLIER, A., 83, Furstensteinerstrasse, Basle, Switzerland. Dec. 13, 1932, No. 35370. Conven. tion date, Dec. 15, 1931. [Class 146 (iii).] In a pencil holder comprising a lead-holding sleeve in which slides an adjusting pin having a toothed cheek engaging a threaded sleeve through a slot in the lead-holding sleeve so that rotation of the pencil-top drives the lead forward, and in which the lead is clamped by the action of the threaded sleeve on the front end of the lead-holding sleeve, longitudinal movement of the pencil-top releases the lead, and the toothed cheek on the adjusting pin can be inserted into a longitudinal slot in the threaded sleeve to permit longitudinal movement of the pin and lead. The lead M, Fig. 1, lies in a sleeve 7 and is advanced by a pin 9 with a toothed cheek 10 passing through a slot 7a in the sleeve 7 and engaging a toothed sleeve 11. An actuating pin 6 also slides in the sleeve 7 and has a key 8 engaging the slot 7a. The pin 6 may be pressed forward by the cap 5. Cheeks 12 on the sleeve 7 engage cheeks on the sleeve 11 and are normally pressed into contact with each other, thus clamping the lead, by a spring 15 between collars 13, 14. The lead can be released by pressing the cap 5, when the key 8 presses forward the sleeve 11. Then the lead can move freely up and down and, if the toothed cheek 10 is adjusted to lie in the slot 11a in the sleeve 11, the pin 9 can follow it. In Fig. 7 the holder is adapted to turn the toothed cheek 10 automatically into the slot 11a when the head is depressed. A cylindrical cam surface 17 is provided on the tube 11, and engages a roller 18 mounted on the key 8. Then, as the head 5 is depressed to free the lead, the sleeve 7 is rotated until the toothed cheek 10 is opposite the slot 11a. When the head is released another cam 20 turns the toothed cheek out of engagement with the slot. In the form shown in Fig. 11, cheeks 45, 50, on lead-holding and threaded sleeves 31, 36, respectively engage each other to grip the lead, and the sleeve 31 can be advanced by depression of the head 27, to release the lead. The whole point portion of the pencil is mounted on a sleeve 42, which is rockably mounted on a bearing 40 adapted to slide on the sleeve 36. To sharpen the lead, the point and sleeve 42 can be drawn forward and inclined until the lead comes into contact with a roughened ring 54 on the inside of the point portion 43. The portion 42, 43 can then be rotated to sharpen the lead.
Patent GB-1439612-A (GB)
Title: Weapon training system
IPC: H01S3/00
Filed: 1972-07-29
Abstract: 1439612 Weapon training system SOLARTRON ELECTRONIC GROUP Ltd 24 Oct 1973 [29 July 1972] 35568/72 Addition to 1228143 Heading F3C [Also in Division H4] A weapon training system comprises a source to provide a beam of electro-magnetic radiation, a linkage connected to the source for orienting the source in an orientation related to the orientation of means which is aimed at a target, scanning means for scanning with the beam in relation to said orientation of means which is aimed at a target, a trihedral corner reflector for mounting on a target, and a detector mounted near the source to receive energy from the beam reflected by the corner reflector when the beam is directed at the target. In an embodiment a tank 1, Fig. 1, has a transmitter receiver 2 having a source, a scanning means and a detector 12, Fig. 3, and has a linkage and an indicator (not shown). A target 3, Fig. 1, has a trihedral reflector 4, Fig. 2, which has three plane metal surfaces set mutually at right angles to form eight trihedral corners 5. The source comprises a gallium arsenide laser diode 6, Fig. 3, and a collimating lens 7 which together produce a parallel beam of infra-red radiation. The lens 7 is mounted in an annular mounting 8 which is rotatable in a housing 9. The optic axis 10 of the lens 7 is displaced from the axis of rotation 11 of the mounting 8 within the housing 9. Thus eccentric rotation of the lens 7 imparts a conical scanning motion to the beam from the source. A detector 12 comprises a transducer 13 which is responsive to radiation of the wave length emitted by the laser diode 6, the transducer being located at the focal plane of a telephoto lens system comprising convex lens 14 and concave lens 15 and the transducer being connected to amplifying means (not shown). Radiation from the source incident on the target is reflected by the reflector 4, detected by the detector 12 and amplified signals therefrom are employed to operate means for indicating the accuracy of aim. A pivot 16 and a cam 17 are provided to tilt the source and the detector with respect to a base 18, so that if the base 18 is attached to a gun 19 of the tank 1, the beam of radiation from the source may be depressed by an amount equal to the elevation of the gun so that the beam is directed at the target when the gun is correctly elevated.
Patent GB-837859-A (GB)
Title: Pneumatic gauging spindle
Inventor: BYRKETT ELWOOD LEON
IPC: G01B13/10
Filed: 1957-11-18
Abstract: 837,859. Pneumatic linear-dimension gauges. SHEFFIELD CORPORATION. Nov. 18, 1957, No. 35848/57. Class 106 (2). A pneumatic gauging spindle for measuring the diameter of a hole comprises an elongated body 10 having an air passage 14 therealong terminating in an orifice 25, a pair of contacts 30 (Fig. 3) being fixed to one end of the body 10, and a gauging arm 12 extending between the contacts 30 and carrying a gauging contact 40 on the opposite side of the body 10 from the contacts 30, the arm 12 having a flow-controlling surface 35 opposing the orifice 25. The air passage 14 is connected to a source of air under pressure 21, and a flow-meter 20, and the arm 12 is fixed to the body 10 in a groove 11 by cementing, having a reduced portion 36 to allow for swinging movement. The contact 40 is an adjustable nut secured in position by a lock-nut 41, and the contacts 30 are located in extensions 27 of the body 10 on either side of the arm 12.
Patent GB-341207-A (GB)
Title: Improvements in or relating to sliding windows
IPC: E05F11/00
Filed: 1929-11-25
Abstract: 341,207. Window holders. METROPOLITAN-CAMMELL CARRIAGE WAGON & FINANCE CO., Ltd. and RAYER, F. H., Metropolitan Works, Saltley, Birmingham. Nov. 25, 1929, No. 35984. [Class 44.] A sliding-window a is retained in any position by wedge strips e on one or both sides of the window, pressed out by springs h and engaging a similar groove in the frame c. The bars are withdrawn by separate handles or by a central handle. The bars are secured to the sash by links which are inclined either downwardly on both sides or in opposite directions, and the link pivots may carry the operating-handles.
Patent GB-357020-A (GB)
Title: Improvements in electric cigarette and like lighters
IPC: F23Q7/00
Filed: 1930-11-29
Abstract: 357,020. Electric cigar lighters. KALLAI, F., 21, Arbesbachgasse, Vienna. Nov. 29, 1930, No. 36002. [Class 75 (iii).] In an igniter, particularly for use on motor vehicles, the igniting element is mounted on a base 1 provided with a hinged cover 2, the hingepin 3 being connected to a stud 4 adapted, on opening the cover, to close the circuit by engaging a bracket 6 mounted on a spring 9. The pin 3 is mounted in a U-shaped hinge element 5, connected to one pole of the current source and acted upon by the spring 9 so as to retain the cover in the open or closed position, an insulation 23 being interposed between the spring and the element 5. The igniting element comprises a resistance coil 19 connected at the outer end to a plate 18 secured by a metal ring 14 in a cap 13 detachably mounted on a holder comprising an outer annular terminal 11 connected to the spring 9 and a central terminal 10 connected to the other pole of the current source. The terminal 11 is formed with a rim 21 which engages over metal balls 15 forced by a spring 16 through apertures in the ring 14, and the terminal 10 contacts with a central terminal 17 of the coil 19.
Patent GB-1450383-A (GB)
Title: Manufacture of ammonium phosphate and fertilizers
IPC: C05B7/00
Filed: 1972-08-03
Abstract: 1450383 Production of ammonium phosphate FISONS Ltd 29 April 1973 [3 Aug 1972] 36211/72 Heading C1A Ammonium phosphate having an NH 3  ; H 3 PO 4  molar ratio of 0À8 : 1 to 2À1 : 1 is prepared by reacting phosphoric acid containing 38 to 55 wt. per cent of P 2 O 5  and 3-20% of added sulphuric acid with ammonia under superatmospheric pressure to give a fluid ammonium phosphate solution at its boiling point under the reaction conditions containing 4-13% water, which is then expelled into a zone at ambient pressure reducing its water content to 3-10% and giving a particulate solid product. The pressure may be 10-50 p.s.i.g. The zone at ambient pressure may be a spray-drying or prilling tower preferably with a flexible wall-lining, a granulator or a moving belt with a flaker. The material may be treated with ammonia and/or an acid in the granulator, the NH 3  : H 3 PO 4  ratio being raised to 1À5 : 1 to 2À1 : 1 from 0À8 : 1 to 1À5 : 1. Other fertilizer materials may be added.
Patent GB-790224-A (GB)
Title: Improvements relating to hand mirrors, hair brushes and similar articles
IPC: A45D42/08
Filed: 1954-12-15
Abstract: 790,224. Brush, hand mirror &c. handles. FANCY METAL GOODS, Ltd., and LEITER, H. Dec. 14, 1955 [Dec. 15, 1954], No. 36253/54. Class 61. In a hand mirror, hair brush &c. having a decorative panel 2 within a marginal frame 1 the brush stock or backing for the mirror having a stem 4 passing longitudinally through a tubular handle 3, the assembly being secured together by a screw and nut arrangement 10, 11, the extreme end of the handle is provided with a recess 8 in which the nut 11 is accommodated. The stem 4 is screw-threaded at its outer end 10 to receive the nut 11. The handle is constructed of opposed channel sections 5, the flanges of the channels being laterally connected by filigree 6. The recess 8 provided at the end of the handle by bending in the extremities of the strip 5 is of sufficient depth to be obscured in the end of the handle. Tongues 12 on the filigree are bent over the end of the nut. Specifications 528,232 and 690,833 are referred to.
Patent GB-837840-A (GB)
Title: Reserpic acid esters and salts thereof and process for their manufacture
Filed: 1958-11-11
Abstract: The invention comprises alkyl reserpate esters of the genral formula <FORM:0837840/IV (b)/1> (wherein R1, R2 and R3 are each an alkyl group of from 1-5 carbon atoms) salts thereof and their preparation by esterifying the corresponding alkyl reserpate with a benzoic acid of formula <FORM:0837840/IV (b)/2> or a functional acid derivative thereof.  A detailed example illustrates the preparation of O - (31 - methoxy - 41 - ethoxycarbonyloxy - 51 nitro-benzoyl) reserpic acid methyl ester.
Patent GB-836829-A (GB)
Title: Road lighting apparatus for automotive vehicles adapated to avoid glare
IPC: B60Q1/14
Filed: 1956-11-28
Abstract: 836,829. Photo-electrically controlled anti-glare lighting for vehicles. ANTIABBAGLIANTI DALLARI (S. r.l.). Nov. 28, 1956 [Nov. 29, 1955], No. 36335/56. Class 40 (3). In an anti-glare arrangement for automobile lighting, the field of vision of the driver of a vehicle, and the light output of the headlamps, are interrupted in phase with each other at a frequency controlled by an oscillator which in turn is controlled by a photo-cell on the front of the vehicle which detects the light output of an oncoming vehicle having a similar lighting system An anti-glare shield V, Fig. 11, in the field of vision of the driver of an automobile comprises a plurality of louvre strips 1, Figs. 7 and 8, each suspended for oscillation about its longitudinal axis and having a permanently magnetized armature 2 adapted to oscillate between poles 10 which are energized by coils 11 connected over a relay 110, Fig. 11, to the amplified output of an oscillator 103. Similar sets of louvre strips 17, Fig. 1, arranged squirrel-cage fashion across the beam in each headlamp Fd, Fs are also oscillated by means of coils which are connected in parallel with the coils in the shield V. A photo-electric cell 101 is mounted on the front of the vehicle and is connected to an amplifier and limiter circuit comprised by valves 102<I>, 102<II>, the output of which is mixed with the signal generated by an oscillator valve 103. The resulting signal from the plate of the valve 103 is amplified by a valve 105 and is then applied to the oscillating coils of the glare shield V and headlamps Fd, Fs by means of a transformer Tu and relay 110. Under normal operating conditions the frequency of oscillation of the louvres in the glare shield V and headlamps Fd, Fs is determined by the oscillator 103, but when the photo-cell 101 is intermittently excited by illumination from an oncoming vehicle having a similar lighting system the frequency of the oscillator is controlled by the output of the photo-cell. When the oscillator is inoperative the relay 110 connects the oscillation coils in the glare shield V and headlamps Fd, Fs to a source Ba of D.C. current which maintains the louvres in an open position. In a modification the light output of the headlamps may be interrupted by alternate illumination and extinction of the lamps, in which case they are provided with gas discharge lamps energized by the discharge of cyclically charged condensers, striking being provided by the modulated signal of an amplifier which causes the initial ionization of the gas.
Patent GB-439331-A (GB)
Title: Improvements in and relating to electric power converting systems
IPC: H02M7/04
Filed: 1934-12-19
Abstract: 439,331. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Dec. 19, 1934, No. 36435. Convention date, Dec. 22, 1933. [Class 38 (ii)] In a converting arrangement having discharge devices with thermionic cathodes, the cathode temperature is maintained constant despite load variations by means of a reactor, normally saturated but the saturation of which is varied in dependence on the load. The filaments of the valves 13, 14 are supplied from a transformer having a choke 23, in series in the primary supply, having a saturating winding 24 supplied through an auxiliary rectifying bridge 25 and constant current device 28 to maintain the choke normally saturated, and a winding 29 in series with the D.C. load circuit 11 and acting in opposition to the winding 24 to reduce the saturation as the load increases. In this way the supply to the filament reduces as the load increases.
Patent GB-1430164-A (GB)
Title: Amnufacture of ion-exchanging shaped articles
IPC: B01J47/12
Filed: 1973-08-01
Abstract: 1430164 Porous ion-exchanging shaped articles BASF AG 1 Aug 1973 [2 Aug 1972] 36519/73 Headings C3C and C3P Porous ion-exchanging shaped articles are prepared by mixing (1) a particulate cross-linked polymer obtained by dispersion polymerization of styrene, a styrene derivative of acenaphthylene in the presence of 1 to 20 weight per cent of an aromatic divinyl compound and (2) an olefin polymer in the presence of (3) an inert organic liquid of low volatility, forming the mixture into shaped articles and introducing ion-exchange groups into the mixture after shaping the inert liquid being removed after shaping. The crosslinked polymer may be derived from styrene, methyl styrene, acenaphthylene or a mixture of styrene with methyl styrene, stilbene or acenaphthylene, together with divinyl benzene; and may be mixed with a polymer of a C 2-6  olefin. The mixture may be formed into fibres, fabrics or membranes and ion-exchanging groups introduced by sulphonation or by chloromethylation and amination. The inert liquid may be tetralin, decalin, anthracene, acenaphthene, diphenyl, C 10-40  alkanes, adipate or phthalate esters, camphor or oleic, stearic or palmitic acid. After shaping it may be extracted, e.g. with methanol, acetone or light naphtha to give microporous articles. In examples (1) cross-linked polystyrene is mixed with polyethylene in tetralin and after shaping into fibres the tetralin is extracted with boiling methanol and ion-exchange groups are introduced by sulphonation, (2) cross-linked polystyrene is mixed with polypropylene in paraffin oil and after shaping into fibres the paraffin oil is extracted with boiling acetone and ion-exchange groups are introduced by sulphonation, and (3) fibres as in (2) are chloromethylated and aminated.
Patent GB-1063927-A (GB)
Title: New cinnamoylamino-isothiazoleanthrones and process for their manufacture
IPC: C09B5/10
Filed: 1965-08-25
Abstract: The invention comprises dyes of the formula <FORM:1063927/C4-C5/1> where A is a benzene residue which may be substituted, e.g. by 1 to 3 halogens, or alkyl, alkoxy or nitro groups.  The compounds are prepared by reacting 5-amino-1:9-isothiazoleanthrone with a halide of the formula A-CH=CH-COhal. Dyeings are achieved with these compounds either alone or in admixture with 5-benzoylaminoisothiazoleanthrone.
Patent GB-1012228-A (GB)
Title: Improvements relating to the production of moulded í¡ í¡
IPC: C08K3/01
Filed: 1962-09-26
Abstract: A process for the production of a moulded polyamide body comprises incorporating into the material or materials from which the moulded polyamide body is produced one or more substances which will, at some stage in the production of the moulded polyamide body prior to cooling of the polyamide to form the moulded body, react to produce finely-divided solid particles. The one or more substances are preferably introduced into the polymerization mixture as a liquid or in solution.  Specified additives are aluminium sulphate, potassium aluminium sulphate, magnesium chloride, water glass and barium chloride together with potassium dichromate, fluorosilicic acid or diethyl sulphate.  In the examples, e -caprolactam is polymerized in the presence of water, acetic acid and: (1) and (2) aluminium sulphate; (3) and (4) potassium aluminium sulphate; (5) and (6) magnesium chloride; (7) and (8) water glass; (9) and (10) potassium dichromate and barium chloride, and (11) and (12) fluorosilicic acid and barium chloride; the resultant polymers being spun into filaments, cut into chips and moulded.
Patent GB-1161869-A (GB)
Title: Device for Storage and Security of Bank Notes or other Valuable Papers.
Inventor: OLIVIER GEORGES
IPC: A45C13/24
Filed: 1968-07-31
Abstract: 1,161,869. Preventing theft. G. OLIVIER. 31 July, 1968, No. 36633/68. Addition to 1.112,934. Heading E2X. A device for storage of bank-notes etc. comprises a receptacle, ignitable elements therein which support bank notes etc., placed on edge, elements for holding the bank notes etc., under pressure on said element, means for igniting said elements and operating means for actuating said igniting means if the receptacle is unduly opened or destroyed. In one embodiment the receptacle is substantially as described in the parent specification but the elements ignite if the case is opened or destroyed e.g. conductors (17) in the wall are cut if the wall of the receptacle is cut contacts (18, 19) are opened if the lid is opened, and even if these fail a photo-electric cell (20) is actuated by the ambient light when the lid is opened. In a modification a safe has hollow walls which are filled with pressure gas and connected to a monometric device so the piercing of the safe wall will cause loss of pressure and ignition of the ignitable elements.
Patent GB-1368826-A (GB)
Title: Apparatus for production of staple fibre yarn
IPC: D02G3/36
Filed: 1971-08-05
Abstract: 1368826 Yarns SCHUBERT & SALZER MASCHINENFABRIK AG 5 Aug 1971 [26 Aug 1970] 36863/71 Headings D1F and D1W To make a staple fibre yarn, a drafted sliver is twisted in a relaxation zone and simultaneously the fibres are joined together at points spaced apart by a distance less than the mean staple fibre length. As shown, drafted sliver F, overfed between rolls 2 and 3, is twisted by pneumatic twister 5 and regularly pinched by ribs 93 of rotating rolls 91, 92. Adhesive, applied to the ribs of roller 91 by belt 21, or by a roller, wets the pinch points. The ribs may intermesh, or one roller may be smooth. The twister may be connected to a vacuum source, or may be a mechanical twister. Powdered adhesive may be mixed with drafted fibres M and activated by an activator applied by the ribs to the pinch points, or adhesive may be supplied with fibres M and activated by heated ribs at the pinch points. The bonded sliver parts may be dried by hot air passed through twister 5, or by a heated roll which may replace rolls 3. The twisted sliver may be drafted. After further yarn processing, e.g. weaving, the adhesive may be dissolved from the yarn. Synthetic fibres, possibly mixed with natural fibres, or a synthetic filament forwarded with the fibres, may be bonded at the pinch points, without adhesive, by the heated ribs.