baber/WOPTO huggingface dataset:
Patent GB-1357295-A (GB)
Title: Dumping apparatus for use with fork lift trucks
IPC: B66F9/19
Filed: 1972-07-12
Abstract: 1357295 Tipping receptacle attachments for lift trucks L SLEZIAK 12 July 1972 [29 Oct 1971] 32523/72 Heading B8H A dumping apparatus for use with a fork lift truck comprises a receptacle 1, a frame 2 having hollow side members 5, 6 which receive the forks 4 of the lift truck, the receptacle 1 being pivotally connected to the frame 2 at the front thereof by the engagement of a pivot pin 12 on the receptacle 1 with tubular members 9, 11, 13 on the frame 2 thus permitting tilting movement of the receptacle 1 relative to the frame 2 in use of the apparatus when the mast (3) of the lift truck is tilted forward, Fig. 4 (not shown), the weight of the contents of the receptacle 1 causing the latter to tilt about the pin 12. To prevent the frame 2 from sliding off the forks 4 during tilting of the mast a chain 18 which is permanently connected at 19 to the frame 2 is connected at its other end to a hook 24 on the forks 4.
Patent GB-268698-A (GB)
Title: Improvements in footwear
IPC: A43B3/02
Filed: 1926-12-23
Abstract: 268,698. Klapp, E. Dec. 23, 1926. Ordinary wear, for; uppers.-The uppers of boots are formed of a snugly fitting rubber tube 4 which embraces the ankle and part of the leg 5 and is extended to cover the instep. Preferably, the tube 4 is made of hard rubber and may be covered with silk or other fabric or worked with thread, or the rubber may be coloured in imitation of leather or to match the clothing. The rubber tube may be attached by means of a narrow strip of leather sewn along the joint, or it may be inserted between two layers of leather, when these are used, and sewn.
Patent GB-1192396-A (GB)
Title: Fluid Pressure Operated Fastener Driving Machine
IPC: B25C1/00
Filed: 1967-07-14
Abstract: 1,192,396. Fastener driving tools. SPOTNAILS Inc. 14 July, 1967, No. 32525/67. Heading B4C. A fluid-pressure (e.g. compressed air) actuated tool for driving fasteners, such as staples or nails, comprises a driver 25 connected to a piston 23 which is reciprocable in a cylinder 18 under the control of a valve means 40. The control valve means includes a valve member 50 having a stem 51, 52 adapted to engage a lever 69 pivoted on a trigger 58, the lever being operatively connected via an arm 79, 80, to a work contact finger 72. In operation, with the device in the position shown, air passes from a reservoir 15, or through passages 47, 48, 49, 39, 38, to maintain a valve 21 closed. Upon raising the trigger 58 until a shoulder 67 thereon abuts a stop pin 68 and without the nose of the tool in contact with the working surface, the valve 50 is raised to a position (Fig. 4, not shown) wherein air can still act on the valve 21. When the nose of the tool is pressed against the working surface, the finger 72 is raised so that, via the arm 79, 80, the lever 69 is lifted to cause the valve 50 to close off communication between the reservoir 15 and passages 38, 39. The valve 21 then opens rapidly and allows air to enter the cylinder to cause the piston 23 to effect a working stroke.
Patent GB-1507267-A (GB)
Title: Construction of lawns
IPC: E01C13/08
Filed: 1976-08-05
Abstract: 1507267 Method of constructing lawns H A HOHENSCHLAGER 5 Aug 1976 [7 Aug 1975] 32616/76 Heading A1B A method of constructing a lawn comprises: (a) cutting deep channels 2 in a substrate 1 and filling them with particulate material to form a base layer including water-permeable beds; (b) applying a layer of top soil 4; (c) intermixing the top layer 4 with the base layer by means of a soil-loosening implement;- (d) cutting shallow channels 5 transversely of the channels 2 and filling them, e.g. with gravel Grass seed is then sown in the top layer 4. In the case of highly co-hesive soils step (d) is performed prior to step (b). Drainage pipes 3 may be used in the channel 2.
Patent GB-1245889-A (GB)
Title: Cutting tool bits
IPC: B23P15/30
Filed: 1969-06-27
Abstract: 1,245,889. Alloys for tools. BATTELLE DEVELOPMENT CORP. June 27, 1969 [July 3, 1968], No. 32622/69. Heading C7A. [Also in Division B3] High-carbon steels containing chromium, tungsten, molybdenum and vanadium and optionally cobalt, and a steel containing chromium, tungsten and cobalt are used for making blades for cutting tools. Suitable alloys have the following compositions the balance in each case being iron: 0À8% C, 4À5% Cr, 6% W, 5% Mo and 5% V; 1À2% C, 4À5% Cr, 11% W, 5% Mo, 3% V and 11% Co; 1À5% C, 4À2% Cr, 6À5% W, 5% Mo, 3À2% V and 4À8% Co; 1À5% C, 4À5% Cr, 12% W, 1% Mo, 4% V and 5% Co; 1À3% C, 4À5% Cr, 12À5% W, 1% Mo and 4% V; and 2À5% C, 31% Cr, 17% W and 43% Co.
Patent GB-1431929-A (GB)
Title: Method and apparatus for checking the wrapping of rod-like articles of the tobacco-processing industry
IPC: A24C5/34
Filed: 1973-07-10
Abstract: 1431929 Testing wrappers HAUNI-WERKE KORBER & CO KG 10 July 1973 [12 July 1972] 32762/73 Heading A2C The wrapping of rod-like articles of the tobacco-processing industry is checked by subjecting an inner space of the articles to a positive or negative pressure as compared to atmospheric and subjecting the space surrounding the articles to an opposite i.e. a negative or positive pressure as compared to atmospheric pressure, and using pressure changes caused by leakages in the wrapping to form a fault signal. The checking may be done using apparatus as shown in Figs. 2 and 3 including sealing discs 52 connected to drum 37 and bores 53 arranged to align with recesses 39 in plates 41. On the other side of drum 37 sealing means are associated with recesses 38 which may be controlled in the direction of double arrow 57. Double filter cigarettes 42 are transferred to recesses 38 and tubes 59 and discs 52 effect sealing. When a recess 38 passes under cover 46, a chamber 47 is formed in which a reduced pressure is created. Simultaneously compressed air from the pressure side 64 of fan 66 reaches the inside of cigarette 42 and if there is a leakage this is transmitted to diaphragm 76.
Patent GB-769598-A (GB)
Title: Improvements in or relating to a method and device for converting a bundle of staplefibres into sliver form
Inventor: STEWART IAN FRASER
IPC: D01G99/00
Filed: 1954-11-12
Abstract: 769,598. Spinning yarns. IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 20, 1955 [Nov. 12, 1954], No. 32803/54. Class 120 (3). In the conversion of a bundle of staple fibres into sliver by drafting, the bundle is fed across a series of circular coaxial combing discs rotating in the same direction at speeds which progressively increase from one disc to another so that the bundle is divided across its width into strands to which individual pulling forces are applied at a series of points the distance between any two of which gradually increases and the straight line joining them forms a gradually increasing angle with the direction in which the bundle is originally fed. In the apparatus shown, comb rings 1 to 8 carrying evenly spaced radial needles 25 to 32 are fixed to plates 9 to 16 freely mounted on a shaft 33 and comprising gear teeth 17 to 24 by which they are driven at different speeds through gears 36 to 43 fixed on a shaft 44. The arrangement is such that a fibre of staple length placed parallel to the axis of the apparatus and over the needles will straddle all or most of'the combs but will not project far beyond the outer comb. Specification 730,218 is referred to.
Patent GB-1148102-A (GB)
Title: Production of new hexahydropyrimidine derivatives
Inventor: PETERSEN HARRO
IPC: C05C9/00
Filed: 1966-07-21
Abstract: 1,148,102. Hexahydropyrimidine derivatives: BADISCHE ANILIN- & SODA-FABRIK A.G. 21 July, 1966 [22 July, 1965; 25 May, 1966. 27 May, 1966; 15 June, 1966], No. 32819/66 Heading C2C. Novel hexahydropyrimidine derivatives of the formula in which R<SP>1</SP> and R<SP>2</SP> denote hydrogen atoms or C 1-8  alkyl radicals, R<SP>3</SP> and R<SP>4</SP> denote C 1-4  alkyl radicals, R<SP>5</SP> denotes a hydrogen atom or a C 1-2  alkyl radical and X denotes an oxygen or sulphur atom, are prepared by reacting urea derivatives R<SP>1</SP>NH.CX.NHR<SP>2</SP> with aldehydes R<SP>3</SP>R<SP>4</SP>.CH.CHO and R<SP>5</SP>.CHO in about equimolar proportions with the addition of acid and at elevated temperatures, the reaction product being neutralized with a base. The compounds may be converted to the corresponding 4-ureidohexahydropyrimidines, which are useful as slowacting fertilizers, by reaction with urea.
Patent GB-911215-A (GB)
Title: Preparation of tetraflouroethylene
IPC: C07C17/269
Filed: 1961-09-13
Abstract: Tetrafluoroethylene is prepared by pyrolysing bromodifluoromethane at a temperature between 500 and 1000 DEG C., the bromotrifluoromethane being exposed to said temperature for less than 1 second, preferably for 0.01 to 0.5 seconds.  The temperature is preferably increased during the contact time.  The gas stream containing the products is preferably quenched to below 500 DEG C.  An inert diluent may be used.  Other products include difluoromethane, bromotetrafluoroethane, dibromodifluoromethane, bromohexafluoropropane and dibromotetrafluoroethane. Specification 581,405 is referred to.
Patent GB-192548-A (GB)
Title: Erasing attachment for writing machines
IPC: B41J29/32
Filed: 1921-12-07
Abstract: 192,548. Marks, E. C. R., (Baldwin Eraser Co.). Dec. 7, 1921. Erasers. - An erasing-device for use on typewriters, and of the kind in which erasing is effected by pressing adhesive material into contact with the paper, is mounted to slide towards the paper, and the adhesive material preferably consists of surgical tape mounted on spools; to confine the erasing action to a small area, the face of the tape may be provided with netting. In the construction shown a casing 37 containing spools 70, 71 for the adhesive tape 17 is secured to a channelled base 36 mounted to slide in a channelled plate 42 which can slide in a channelled support 28. The support is pivoted at 29 to a bracket 19 secured by a screw 27 to the frame 11 of the typewriter, the device being secured in register with the printing-point. The slides 36, 42 are normally held in retracted position, shown in Fig. 5, by means of a spring, the slide 36 resting on ears 34 on the bracket. The retracting- spring may consist of a spring 54, connected to a pin 56 on the support 28 and a collar 58 on a tube 57, and a weaker spring 55. connected to the end 59 of the tube and a pin 60 on the slide 36. The bottom plate 61 of the casing projects forwardly and supports a block 79 carrying a yielding plunger 15 for depressing the ink ribbon 13, and a rigid plunger 86 for pressing the tape into contact with the paper. The plunger 15 is pressed forwards by means of a spring 91. The plunger 85 is curved to fit the platen 14 and may have a pitted face or a roughened cruciform face. The tape passes from the bottom to the top spool and is stretched over the face of the plunger 85 by means of a lug 64 formed on a flange 62 on the plate 61. The spools are loose on a post 69, and the cover 76 of the casing is coupled to the top spool by means of a pin 77, and is formed with teeth engaging a detent 78. The cover is turned periodically to wind the tape, and when the top spool is full, the cover is detached, the spools are withdrawn, the empty spool is replaced above the full spool. In operation, forward and downward pressure being applied, the device moves forward until the plunger 15 touches the paper 18, whereupon the slot 49 permits downward rocking of the device, and the plunger pushes aside the ink ribbon 13. During the short forward movement accompanying the downward movement, the. plunger 85 forces the tape into contact with the paper. and when the device is retracted by the springs 54, 55, the erroneously-printed letter adheres to the tape and is removed from the paper.
Patent GB-632112-A (GB)
Title: Improvements in fans and pumps
IPC: F04D3/00
Filed: 1947-12-15
Abstract: 632,112. Screw fans and pumps. STEWART, Sir F. C. Dec. 15, 1947, No. 32952. [Class 110(i)] The impeller blades, which are of aerofoil form, are of such sectional profile that the camber angle O over at least a part of the length of the blades exceeds 45 degrees. The angle reaches a maximum at or near the root section; 'it may increase continuously along the whole length of the blade or may remain constant over a part of the length and increase along the remainder towards the root. The angle may vary from not more than 30 degrees at the tip to 60 degrees or more at the root. The ratio of maximum camber of the mean line of the blade section to the blade width may vary from not more than 0.1 at the tip to 0.2 or more at the root. Specification 7015/06, [Class 110], is referred to.
Patent GB-1375888-A (GB)
IPC: F16D7/02
Filed: 1972-07-14
Abstract: 1375888 Slip couplings JEAN WALTERSCHEID KG 14 July 1972 [14 Jan 1972] 33045/72 Heading F2U A slip coupling comprises a hub fixed to a sleeve fixed to one end 12a, 13a, of a leaf spring 12, 13 arranged to strike axially extending abutments 14 fixed to a ring 15 when the ring moves relative to the hub. The ring 15 may be fixed to a casing (3), Fig. 1 (not shown), having two dished springs (5) urging friction rings (4) to clamp a plate (2) integral with the hub (1). The sleeve may be fixed to the hub by an indentation on the sleeve entering a recess (e.g. a groove) in the hub.
Patent GB-650703-A (GB)
Title: Improvements in or relating to a method and means of delivering material
IPC: B65D19/36
Filed: 1947-12-16
Abstract: 650,703. Load-carrying pallets. CLARK EQUIPMENT CO. Dec. 16, 1947, Nos. 33115 and 33116. Convention dates, Oct. 17, 1946, and Dec. 21, 1946. [Class 78 (iv)] A method of handling material which comprises placing a load upon a sheet, applying tension to a margin of the sheet and drawing the sheet and load on to a flat supporting member for transporting the load by that member. The load 14 is deposited on a pallet 16 having an upturned edge 22. To transport the load, a platen 24 is brought alongside the edge 22 which is gripped to pull the load forward as the platen is moved underneath. The fork of the transporting vehicle then engages the platen and transfers the load, the platen being removed as the load descends into position. The upturned edges 22 may then be turned up or flattened out. To unload, the edge 22 of the pallet is gripped and the platen pushed underneath before the transporting vehicle removes the load. Alternative forms of pallets are described, one having an indented edge, another pallet having an edge complementarily shaped, another has a grooved edge, another turned back to stiffen, and reinforced by fabric. Preferably the pallets are made of corrugated cardboard or of fibreboard, but they may be made of metal.
Patent GB-618649-A (GB)
Title: Improvements in insulated electric conductors
IPC: H01B7/29
Filed: 1946-11-07
Abstract: 618,649. Electric cables. BRITISH INSULATED CALLENDER'S CABLES, Ltd., and KRETSCHMER, J. M., [Representative of KRETSCHMER, H. E.]. Nov. 7, 1946, No. 33160. [Class 36] An electric conductor 1 has a coating 2 of rubber and a lacquered glass braid 3 arranged so that spaces 7 are provided between the rubber and the braid to permit the rubber to expand during heat treatment. The spaces may be formed by a member 4, which may be a glass thread, or the surface of the rubber may be formed into a raised pattern.
Patent GB-1313777-A (GB)
Title: Light-sensitive material and a method for making colourproofing foils
IPC: C08K5/00
Filed: 1970-07-08
Abstract: 1313777 Light sensitive materials for colour proofing AZOPLATE CORP 8 July 1970 [9 July 1969] 33176/70 Heading G2C A light-sensitive material for colour proofs comprises a transparent support coated with a layer containing a dye and a condensation product containing at least 2 units of A-D and at least one unit of B, which units are linked by a bivalent member derived from formaldehyde wherein A is a radical of a compound containing an aromatic carbocyclic ring carrying the D group, this ring being linked by a bond or intermediate group to an aromatic carbocyclic or heterocyclic ring which compound is capable of condensation in at least one position with formaldehyde in an acid medium, D is a diazonium salt, azide, triazone or diazosulphonate group and B is a radical of a compound free from diazonium groups and capable of condensation in at least one position with formaldehyde in acid medium. The condensation products are preferably those disclosed in Specifications 1312925, 1312926 and 1302717. The layer may also contain styrene/  moleic unhydride copolymers and polyester resins. The material may be imagewise exposed and developed with an aqueous solution of a sodium salt and a nonionic e.g. alkyl aryl polyether alcohols, or anionic wetting agent, e.g. lauryl sodium sulphates, to remove the unexposed areas. If this process is repeated using dyes conforming to the colours of standard inks, a colour proof can be produced.
Patent GB-611737-A (GB)
Title: Electrode system for negative glow discharge lamps
IPC: H01J61/64
Filed: 1945-12-07
Abstract: 611,737. Discharge lamps. SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES-ETABLISSEMENTS CLAUDE-PAZ ET SILVA. Dec. 7, 1945, No. 33204. Convention date, April 24. [Class 39 (i)] The electrodes 5, 5<1> of a negative glow discharge lamp are in the shape of two rightangled dihedrons, disposed with their apices adjacent and with the limbs in alignment in pairs. The envelope 1 may be spherical in shape and coated internally with a fluorescent substance 2 such as zinc silicate or zinc sulphide.
Patent GB-1390395-A (GB)
Title: Washing and spin drying machines
IPC: D06F37/22
Filed: 1972-07-17
Abstract: 1390395 Washing machines PHILIPS GLOEILAMPENFABRIEKEN NV 17 July 1972 [20 July 1971] 33274/72 Heading D1A To limit vibrations of a washing and spindrying machine having a resiliently mounted drum receiving tub, a device is provided which prevents vertical movement of the tub when accelerating the drum until the critical frequency is exceeded the instant of release being determined by the value of the unbalance force. In Fig. 2a the device comprises a strut 3 secured to the tub, a guide 5 secured to the machine frame and a coil spring 3 and a leaf spring 7. On loading the tub with water for washing the spring 3 is compressed and the end of the leaf spring engages a recess 6 of the strut to hold it stationary. The leaf spring holds the strut 3 until on accelerating the drum for spin-drying. The vertical unbalance force is sufficient, after the critical speed is exceeded, to dislodge the leaf spring from the recess permitting the spring 3 to be effective with the now lighter tub. Fig. 3a, not shown, incorporates a tension spring (4) for a tub suspended at (12) and a leaf spring which operates as above.
Patent GB-1000512-A (GB)
Title: Inverter
Inventor: HASKOVEC JIRI STEPHAN
IPC: H03K19/16
Filed: 1961-09-19
Abstract: 1,000,512. Controlled non-linear inductors. CESKOSLOVENSKA AKADEMIE VED NO. 3. Sept. 19, 1961, No. 33471/61. Heading H3B. A magnetic complementing amplifier comprises a core 3 having a rectangular hysteresis loop and associated control and output windings 2, 6, the control winding being connected between earth and an alternating potential 5 through diodes 7 and 10, and the diodes being biased in the conductive direction by a negative potential 8 applied over resistors 9, 11 to such an extent that both diodes are conductive when a normal switching current is passed through winding 6, and one diode becomes cut-off if the winding current exceeds the normal value. The diode which is cut off depends on the direction of the excessive winding current. For operation as a logical device, winding 2 is either effectively short circuited or open circuited at control terminal 1. With an open circuit at terminal 1 (or the equivalent in the form of a high control potential), the core flux changes between positive saturation (set) and negative saturation (reset) in correspondence with the positive and negative half cycles of the alternating potential. In each case current flows between 5 and earth through the diodes 7 and 10 in the appropriate direction. The negative half cycle periods are used to apply control signals and the positive half cycle periods are used to derive a complementing output at terminal 4. With the control winding open-circuited the voltage between terminal 4 and earth through conductive diode 10 is zero in the output period immediately following the control period. If the control winding is short-circuited in a control period the induced current from winding 6 to winding 2 prevents the core flux from being set to positive saturation. Due to the negligible voltage drop across winding 6, diode 7 is no longer negatively biased and becomes cut-off. In the following output period, since the core has not been reset flux switching cannot take place. Consequently the negligible voltage drop of winding 6 changes the bias of diode 10 which is cut-off. An output voltage therefore appears at terminal 4. In a modification, Fig. 2, resistors 9 and 11 are combined in a single resistor 12 by the use of a tap 13 on winding 6. Logical input gates are provided in association with winding 2 which cause the amplifier to provide a complementing output if appropriate terminals 22-27 are energized, and a direct output in response to appropriate energization of terminals 28-30.
Patent GB-1317166-A (GB)
Title: Adhesion of rubber compounds to textiles and metals
IPC: C08J5/10
Filed: 1970-07-10
Abstract: 1317166 Rubber coatings VYZKUMNY USTAV GUMARENSKE A PLASTIKARSKE TECHNOLOGIE 10 July 1970 [11 July 1969] 33582/70 Heading B2E The adhesion of rubber compositions to textile of metallic substrates is improved by adding to a vulcanisable rubber composition (a) a filler and/or carbon black (b) the parent components of a resin being (i) a phenol and/or an amine and an aldehyde or aldehyde donor and/or (ii) the parent components of a hexamethylene/resorcinol condensation resin and/or the previously prepared resin formed from (i) or (ii) and (c) an elastomer having in its chain copolymerised aldehyde, epoxy or vinyl pyridene groups and then vulcanising the composition in contact with the substrate. A suitable filler is silicic acid with a surface area of 30-400 m<SP>2</SP>/g (BET) and a size of 10-400 millimicrons and is preferably present in amounts of 1:5 to 5:1 with respect to component (b). Metal oxides may also be included. Specified substrates are brass plated or untreated steel wires or square woven nylon fabrics.
Patent GB-836070-A (GB)
Title: An automatic aircraft control system
IPC: G05D1/00
Filed: 1957-10-28
Abstract: 836,070. Automatic control systems for aircraft. COLLINS RADIO CO. Oct. 28, 1957 [Feb. 18, 1957], No. 33590/57. Class 38 (4). [Also in Group XL (c)] Electrical control signals are faded into an aircraft automatic pilot by means of a transistor circuit. In the aircraft automatic pilot shown, signals dependent on heading, banking, radio course deviation, and desired heading are selected manually by a switch 6 and applied to amplifiers 7 or 8 which control the rudder and ailerons. The selected signals are introduced gradually by transistor circuits 9 of which that associated with the bank signal is typical. To introduce the bank signal switch 6 is moved to close contacts 6a so that a direct voltage from source 11, 14 is applied between base and emitter of a transistor 13 to render it conductive. This permits the discharge of a condenser 21 connected between the collector and base of the transistor, thereby gradually increasing current through rectifiers 15, 16, 17, 18 and resistances 19, 20. The gradually increasing conduction of rectifiers 15, 16 applies the bank signal gradually to amplifier 7.