baber/WOPTO huggingface dataset:
Patent GB-792638-A (GB)
Title: Improvements in or relating to the preparation of titanium and other metals from their weakly-bonded covalent halides
Inventor: FLETCHER RICHARD JOHN
IPC: C22B34/12
Filed: 1953-09-04
Abstract: 792,638. Producing titanium &c. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 6, 1954 [Sept. 4, 1953], No. 24454/53 Class 82(1) Metals which form weakly bonded covalent halides (e.g. Ti, Zr and Ta) are continuously prepared by removably mounting a small body 14 of the metal in a closed reaction vessel 10, establishing a high vacuum within the vessel (e.g. a pressure below .001 mm of Hg by means of a gate valve 20, high vacuum pump 21 and mechanical pump 22), establishing a potential difference between the body and a jet nozzle 18 (e.g. by connections 26, 27) whilst continously directing a jet of a halide (chloride, bromide or iodide) of the metal into the vessel (e.g. from a source 15 with a reducing valve 16) so as to be intercepted by the body which becomes heated by positive ion bombardment, the vacuum within the vessel being sufficiently high for the halide molecules to form a molecular jet (defined in the Specification) in their travel to the body, the latter being heated to a temperature in excess of the dissociation temperature of the halide, continuously removing from the vessel (e.g. by the pump 21, 22) free halogen formed in the region of the body by thermal dissociation of the halide, and periodically removing the body and replacing it with a fresh body when an appreciable quantity of new metal has been deposited on the first body. As shown, the body 14 is carried by a mandrel 12 which is slowly rotated and slowly withdrawn from the jet through a detachable end plate 11. The latter may be replaced by a vacuum gate, or a reverse mandrel carrying a fresh body 14 could be rotated into position on a capstan or the like. The heating of the body may be augmented by means of an induction coil 23.
Patent GB-685765-A (GB)
Title: Improvements in automatic fire-arms
IPC: F41A3/38
Filed: 1949-09-23
Abstract: 685,765. Automatic guns. HISPANIOLA CORPORATION (LA HISPANIOLA CPA.).  Sept. 23, 1949 [Sept. 30, 1948], No. 24459/49. Class 119 Relates to automatic guns of the type having a hollow breech bolt 4 sliding partly in a barrel-extension 50 and partly in the fixed gun casing 3, a locking-device 10 for the bolt and a striker 5 slidably mounted in the bolt, the bolt and striker recoiling together but being released separately by the sear for forward movement; the bolt first by trigger action and afterwards the striker as the bolt reaches its closed and locked position. According to the invention, the rate of automatic fire is diminished by providing a heavy striker having a long stroke, the weight of the striker being at least equal to or from 1“ up to twice the weight of the bolt. On firing with the parts in the position shown, the barrel extension 50 recoils. a short distance and releases a cranked bolt locking lever 10, 13 pivoted at 12 to the extension and at 11 to the gun casing. The bolt and striker, held together by a pivoted catch 42, then slide back under gas pressure against the action of springs 6, 7. At the end of recoil, the catch 42 is released by surface 101 on the gun casing and the breech bolt and striker are held respectively by projections 16, 17 on a sear 18 engaging bents 22 21. The sear is pivoted at 11 and engaged by the pivoted trigger 29. On pulling the trigger, the bolt 4 is first released and, when the breech closes, the barrel extension moves forward to lock the bolt and press on the sear projection 32 to release the striker by fully depressing the sear to discharge projection 17 from bent 21.
Patent GB-1069755-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L21/3205
Filed: 1964-06-12
Abstract: 1,069,755. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 12, 1964 [June 17, 1963], No. 24494/64. Heading H1K. In a solid-state circuit covered with an insulating layer on which are deposited conductors, one of the conductors crosses another without touching by means of a region diffused into the semi-conductor body below the insulation and surrounded by a second diffused region to isolate it from the bulk of the wafer. A solid-state circuit comprises a matrix of bi-stable elements each of which comprises,as shown in Fig. 5, an arrangement of two transistors a, b, two resistors r a , r b  and interconnecting conductors A, B, C, 6. As indicated in Fig. 8 a P-type silicon substrate 20 has an N-type silicon epitaxial layer 21 deposited on it. A layer 4 of silicon oxide is formed on the surface of layer 21 and windows are etched using a photolithographic technique. Boron is vapour diffused through the windows to form P-type regions 30 which extend through layer 21 and contact substrate 20 to divide layer 21 into a plurality of isolated regions. The oxide layer is reformed and further windows are etched and boron again diffused in to form P-type regions 35, 36 and 81. The oxide layer is reformed and the diffusion process repeated, this time using phosphorus to produce N-type regions 34, 37, and 80. The oxide layer is again reformed and windows 7 etched to expose the desired contact areas and contacts A, B, C, and 6 6 are formed by vapour depositing aluminium on the whole surface and then masking using a photo-resist and etching away the unwanted portions. Regions 34, 35 and 37 form the emitter, base and collector regions respectively of each transistor. As shown, Fig. 8, conductors A and B cross without making contact by means of N- type region 80 to which the ends of conductors B are connected. Region 80 is isolated from the bulk of layer 21 by the two junctions 82 and 83 one of which is always reversely biased. Since the operating conditions of the embodiment are such that junction 83 is always reversely biased junction 82 may be shortcircuited, as illustrated, by the ends of conductors B to reduce leakage currents. The conductors may alternatively be of silver and the semi-conductor material may be an A III Bv compound.
Patent GB-828109-A (GB)
Title: Improvements in mobile slewing cranes with luffing jib
IPC: B66C23/36
Filed: 1957-08-02
Abstract: 828,109. Mobile slewing cranes. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Aug. 2, 1957 [Aug. 2, 1956], No. 24523/57. Class 78 (4). The load-carrying capacity of a mobile slewing crane with a luffing jib is increased by the insertion of a member 6, Fig. 1, between the jib 1 and the rotatable upper chassis 3, the jib pivot being moved from 2 to 7 in the process. Rollers 8 on the member 6, running on rails 9 on the lower chassis 4, and a ground-engaging support 10, allow a limited slewing movement at either end of the vehicle. The slewing angle may be increased by the provision of platforms 11, Fig. 3, carrying rails 12 and with groundengaging supports 13. The rollers 8 may be lifted from the rails by a cable 14 of a hand winch 18, enabling the jib to be slewed completely round under no-load conditions. As shown in Fig. 2, the hand winch and cable are replaced by a truss structure 19 fixed to the member 6 and connected through an adjustable shock-absorber leg 20 to the upper chassis 3. A pulley 21 forms part of the luffing tackle, and the spring 24 is so adjusted that under light loads the rollers 8 are clear of the rails and the jib can be slewed completely round. When the load is sufficient to lower the rollers 8 so that they would contact the rails, controlling means 23 render the crane inoperative unless the rollers are in fact over the rails, in which case further controlling means 25 render controlling means 23 inoperative. A complete rail ring, supported from the ground, may be provided for the rollers 8, enabling the jib to be slewed completely under maximum load conditions.
Patent GB-1403946-A (GB)
Title: Spectroscopy
IPC: H01J49/44
Filed: 1973-05-23
Abstract: 1403946 Electron beam spectroscopy MULLARD Ltd 23 May 1973 24619/73 Heading G1N In a method of analysing the surface of a material by electron beam spectroscopy, the surface 3, Fig. 1, is irradiated with a beam of primary electrons to emit secondary electrons whose energy distribution is a function of the atoms in the surface, and the energy distribution is measured by determining the components of the current flow in the material due to the secondary electron emission. In Fig. 1 the source of primary electrons is a gun 1, which with material 3 is supported in an earthed vacuum chamber 2. A small A.C. signal at, e.g., 2KHz, is applied to the material 3 by a generator 8 via a coupler 5. A ramp voltage is also applied to the material by a source 7 via the coupler, and is preferably also applied to gun 1 to maintain the potential along the primary beam. Only those secondary electrons having enough energy to overcome the instantaneous potential difference between the material and the earthed vacuum chamber can be emitted. By plotting this instantaneous potential difference X against the current flow Y as measured at 6 the desired energy distribution is obtained. The measuring circuit 6 comprises a tuned amplifier and a phase sensitive detector; it is tuned to the first harmonic or second harmonic of the generator 8, depending on whether the secondary electron energy distribution or its first derivative is required. Suitable circuits for the coupler 5 are given. The primary electron beam need not be focused, nor need it be normal to the surface. The ramp voltage may be replaced by a set of spot measurements. The method of analysis may be used for in situ examination of electron tubes for ageing, for surface chemistry study, thin film growth study &c.
Patent GB-205294-A (GB)
Title: Improvements relating to baby carriages
IPC: B62B9/18
Filed: 1922-09-11
Abstract: 205,294. Lines, W. Sept. 11, 1922. Springs, mounting undercarriages on.-In a baby carriage in which the body is suspended from a rigid frame by which the handle is carried, each side member 1 of the framing is supported by a single lug 4 attached to a resilient link 8, 9 secured at its ends to the axles 6, 7. The axles may be 'braoed by cross-members 12, 13 and the lugs 4 may be adjustably mounted on the side members.
Patent GB-244864-A (GB)
Title: A improved method of and means for supporting electrodes in thermionic valves and the like
IPC: H01J1/18
Filed: 1924-10-17
Abstract: 244,864. Bullimore, W. R. Oct. 17, 1924. Vacuum tubes.-The filament or other electrode of a valve is mounted on the usual conductor supports and is additionally supported by one or more metallic members to which it is pasted or cemented. In applying the invention to an arched filament, a metal support is sealed into the glass pinch between the usual conductors to which the ends of the filament are connected, and this support extends upwards and is pasted to the central portion of the filament. A suitable cement consists of a carbon base mixed with an agglutinant such as caramel or gum tragacanth, a substance such as red phosphorus, magnesium powder, or a metal of the alkaline earth series being incorporated with the mixture to absorb residual gases. Alternatively, the paste may be formed by mixing oxides of alkaline earth metals with the agglutinant, as mentioned, or with sodium silicate, the mixture also including the substances for absorbing gases.
Patent GB-153444-A (GB)
Title: Improved process for the manufacture of artificial threads, films and other products from viscose
IPC: D01F2/06
Filed: 1919-10-09
Abstract: In a cyclic process for the manufacture of artificial threads, films, &c. from viscose, a solution of the latter is prepared with caustic soda obtained electrolytically, the hydrogen and chlorine from the electrolytic cell are united, as for example in an explosion motor, to form hydrochloric acid, which, with the addition of sodium chloride, if necessary, constitutes the precipitating-bath, and the sodium chloride regenerated during the precipitation is returned to the electrolytic cell.
Patent GB-426468-A (GB)
Title: Improvements in physical exercisers
IPC: A63B23/035
Filed: 1934-08-28
Abstract: 426,468. Exercising-apparatus. PYKE, M. A., 4, Old Burlington Street, London. Aug. 28, 1934, No. 24745. [Class 132 (i)] A physical exerciser comprises a bar 1, adapted to be anchored to the ground or other support by a ring screw 14 connected by an adjustable chain or strap 12 to a wire shackle 7, the eyes 8 of which encircle the bar, a rubber band 2 being connected to the bar 1 between the eyes 8 and to a handle 5. U-shaped grips of leather 9, threaded on the bar 1 and located thereon by the eyes 8 and by a leather spacing strap 10 through which the outer ends of the grips 9 are threaded, are adapted to grip either the knees or feet of the user who pulls and retracts the handle 5. The bar 1 may be padded if the grips 9 are used for the knees. Alternatively, two handles, each connected to the bar 1 by a resilient device may be used.
Patent GB-989748-A (GB)
Title: Apparatus for welding thermoplastic sheet material
IPC: B29C65/22
Filed: 1962-06-27
Abstract: 989,748. Seaming non-metallic sheet material. FR. HESSER MASCHINENFABRIK A.G. June 27, 1962 [Aug. 31, 1961], No. 24774/62. Heading B5K. Apparatus for welding thermoplastic sheet material comprises one or more heatable tools 3, 4 each having a plurality of parallel ribs which are applied under pressure against the work, the pressure-applying surfaces of these ribs being of linear form, i.e. of a width not exceeding 2 mm. In one embodiment, Fig. 1, for sealing the compressed mouth of a bag B, welding jaws 3, 4 are carried on pivoted arms 1, 2 and have practically knife-edge welding surfaces 5, 51 and heating elements 6. Strips 7, 8 of adhesion-resistant material, such as polytetrafluoroethylene or silicon impregnated glass silk, mounted on supports 9, are inserted between the jaws 3, 4 and the bag mouth. The pivotable supports 9 are operatable by cams 1, 2 through a lost motion linkage so that the strips 7, 8 do not leave the work until the jaws 1, 2 have been parted by specific amount. Compression springs 35 urge the supports 9 away from the arms 1, 2 and the supports 9 have pins 36 attached thereto which slide in slots in bars 37 secured to the arms 1, 2. In an alternative embodiment, Figs. 2, 3 and 4, for welding the end folds of a package P fed on rails 33, 34, welding dies 10, 11 heated by elements 23 have welding surfaces formed as narrow ribs 13, 14, 15, Fig. 4, which are broader at the parts thereof to seal a larger number of layers together. Adhesion-resistant strips 27, 28 are wound on reels 19, 20 so as to be adjustable longitudinally to compensate for wear and are guided by rollers 21, 22 one of which is pivotally mounted and spring biased. The dies 10, 11 are movable through the linkage 24, 25, 29, 30, 31, Fig. 3, by rocking a crank 32.
Patent GB-1344601-A (GB)
Title: Method of visible recording
IPC: G03G5/022
Filed: 1970-09-16
Abstract: 1344601 Developing magnetic images HONEYWELL Inc 16 Sept 1970 [25 Sept 1969] 24780/73 Divided out of 1343752 Heading B6C [Also in Division G2] In a method of recording on a web-like record medium consisting of translucent or transparent synthetic polymeric thermoplastic material containing flake-like, reflective particles, which in the plastic state of the material, are orientable by means of an electrostatic or magnetic field to produce a visible record, an area of the record medium is subjected to said field, and simultaneously, selected parts of the medium in that area are heated to the plastics state, at the point of impingement re-orientation of the flakes in response to the field causes a change in reflectance resulting in a visible record (Fig. 1). The heating means may be a laser 20 (Fig. 2) controlled by input device 22 and mirror 21 to soften the recording medium image-wise and allow re-orientation of the flakes at the point of impingement in response to an electrostatic field applied by D.C. source 19 across the whole width of the recording medium. The flakes in the plastic medium are preferably pre-orientated on a plane parallel to the surface of the medium.
Patent GB-227083-A (GB)
Title: A device to provide for the easy and clean cut opening of envelopes and to provide an attractive and novel mode of advertising
IPC: B65D27/32
Filed: 1924-10-18
Abstract: 227,083. Thomson, D. Dec. 31, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Envelopes. - A device for opening envelopes comprises a card A, Fig. 3, having inclined edges B, which is enclosed in the envelops, and can be withdrawn by means of a projecting tab D, so that the inclined edges sever the sealing-flap at the fold. The tab D is accessible through an opening E, Fig. 2, in the front of the envelope, which is formed by a cut-out tongue C. The tongue C is passed over the edge of the card, so as to ensure that the enclosure is inserted on the rear side of the card. Advertisements may be placed on the card.
Patent GB-339938-A (GB)
Title: Improvements in paper sacks or bags and method of closing same
IPC: B65D33/26
Filed: 1929-08-14
Abstract: 339,938. Rawlins, J. D., and Paper Sacks, Ltd. Aug. 14, 1929. Paper bags; sacks and the like bags.-In closing a paper sack or bag, stapling or stitching is provided along each side of the mouth of the open end of the bag, and may secure a thread or cord thereto at intervals, a closure being formed by threading a tie beneath opposite portions of the stapling, stitching or thread and securing the ends of the tie in such a manner that the sides of the mouth are held together. Short slits g made in the ends of the mouth of a bag a permit reinforcing strips i to be placed over the opposite sides of the mouth. The upper edge of a tongue or flap v is inserted in the reinforcement on one or each side of the mouth and the sides, tongue and reinforcement are sewn or stapled together, a cord m being secured at intervals to the reinforcement by the sewing &c. The strips extend beyond the edges of the bag and are secured together at their ends by reinforcements r sewn on to them. In a modification, a single reinforcing strip w, Fig. 6, surrounds the mouth of the bag and a single flap z having its ends secured together at t is provided. To close the bag, the flaps v or flap z are drawn upwards and rolled downwards to close the mouth as shown in Fig. 6 and a tie is secured to the cords m at one end of the mouth. The tie is drawn alternately beneath the cords m until the other end of the mouth is reached, when it is drawn tight and secured to both cords. Alternatively the ends of the tie may secure the ends of the mouth in bunch form.
Patent GB-171221-A (GB)
Title: Improvements in folding perambulators and cots combined
IPC: B62B7/10
Filed: 1920-08-28
Abstract: 171,221. Bethell, A. V. Aug. 28, 1920. Folding bedsteads.-A combined folding perambulator and cot is constructed with an X- shaped side frame PQ, RS carrying wheel axles and supporting the rectangular body framework AB to which is attached a flexible body shaped by a cane or other light framework. Slotted metal plates C connect the frames PQ, AB. Removable pivotal fastenings at 0 allow of folding, and may be re-inserted in holes M to lock the folded frame. The handle joint at R may be detached to allow the side members to be sprung over the bolts at 0. A plate 15 may engage a bolt or wing-nut on the axle to lock the frame. A light canopy is held on a frame, Fig. 6. The axles may be mounted in spring-supported lever members V, W, Fig. 5, which may be fixed as extensions of the frame members when the wheels are removed and the apparatus used as a cot. For this purpose the body may be adjusted by adjusting the slotted plates C, Fig. 1, or by using other connecting plates K, Fig. 5, the other body connection being moved from the pivoting point 0 to a point J.
Patent GB-155229-A (GB)
Title: Improvements in or relating to appliances for use in the manufacture of hosiery and the like
IPC: D06C5/00
Filed: 1920-08-28
Abstract: 155,229. Soc. Vallon et Baudry. Dec. 10, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Shaping made-up goods upon cores.- An appliance for use in the manufacture of hosiery, caps, &c. consists of hollow formers of metal &c. having internal heating-means for drying the articles rapidly and giving them a definite shape. As shown, each former 1 is integral with a plate 2 having an orifice 3 for steam, hot water, &c. and an orifice 4 provided with a pipe 5 serving as an exhaust. The orifices are connected by conical parts 6, 7 adapted to fit conical tubes 9, 8 carried in a base-plate 10 and connected to supply and exhaust pipes 12, 13. The plates 2, 10 are adapted to be secured together by winged screws passing through slots in the plate 2.
Patent GB-861389-A (GB)
Title: Improvements in and relating to automatic positioning apparatus for machine tools
Inventor: MONK MURRAY
IPC: G05B19/408
Filed: 1957-08-07
Abstract: 861,389. Electric follow-up systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 7, 1957, No. 24903/57. Addition to 764,588. Class 40 (1). The parent Specification relates to automatic remote positioning apparatus for a machine and tool comprising a reference member 3 (Fig. 1) in the form of a bar of magnetic material with accurately spaced, equidistant, non- magnetic inserts, or a non- magnetic bar with magnetic inserts, attached to the tool slide 1, and a sensing head 4 producing an error signal when it is in misalignment with an adjacent reference position. The tool slide is positioned in accordance with the integral part of the positioning dimension set in on handle 10a, via selsyns S8, S8A, and the fractional part is set in on handles 9d, 7d, 6d, 10d operating on the sensing head 4 via coarse and fine selsyns S9, S9A, &c., the motor M2 driving the slide 1 from selsyn received S8A until that error voltage is removed and then receiving the error voltage from the head 4 to add the fractional part of the dimension. In the parent Specification all the shafts are coupled via 10: 1 ratio gears, the handles are calibrated to produce movements in inches, and the inserts on the reference member 3 are spaced one inch apart. In the present Specification, the spacing between inserts on the reference member 3 is 25 millimeters, and the handles are calibrated to produce movements in millimeters, additional switching being added to the shafts of the fine selsyns whereby the sensing head movement is restricted to a maximum of 25 mm. by selective switching of the selsyn windings. Mounted for movement with handle 9d are three slip rings 21, 22, 23 (Fig. 2), and a fourth slip ring 24 moves with handle 7d. Each slip ring comprises two insulated parts, connected permanently at A-F to the A.C. supply 25 via relay windings RLA, RLB. Four contacts W-Z are fixed in space and therefore movable relative to the slip rings. The contacts of relays RLA, RLB are connected to the windings of the selsyns S9, S9A in such a way that each 25 mm. rotation of handles 9d, 7d causes the relays to rotate the windings of selsyns S9, S9A electrically through 60 degrees, producing a - 25 mm. displacement of the sensing head 4 without additional rotation of shafts 7, 9 or 8. The slip rings may alternatively be cams, operating microswitches. Specification 858,335 is referred to.
Patent GB-322003-A (GB)
Title: Improvements in the manufacture and production of valuable products from carbohydrates
IPC: C08B5/14
Filed: 1928-08-30
Abstract: 322,003. Traube, W. Aug. 30, 1928. Addition to 294,572. Carbohydrate sulphates.- Water-soluble sulphuric esters of starch and other carbohydrates, such as are described in the parent Specification, are prepared by treating the dry carbohydrates with sulphur trioxide dissolved in an inert liquid diluent. A solution of sulphur trioxide in carbon bisulphide is suitable.