baber/WOPTO huggingface dataset:
Patent GB-566243-A (GB)
Title: Improvements in and relating to apparatus for regional analgesia
IPC: A61M5/20
Filed: 1943-05-05
Abstract: 566,243. Apparatus for regional analgesia. JAMES, N. R., BLAKER, C. G., TALLEY, H. A., and JAMES, H. M. May 5, 1943, No. 7156. [Class 81 (ii)] Apparatus for regional analgesia comprises a reservoir 1a for the analgesic solution, a detachable cover 2 for hermetically closing the reservoir, means A for supplying compressed air &c. to the reservoir, filter means B for the compressed air &c., and means by which the solution is conveyed to an air trap C and delivered therefrom to a valve-controlled " gun " D and thence to a hollow surgical needle E. The reservoir may comprise outer and inner units 1, 1a, the inner unit being of material unaffected by the solution and formed with lifting means 1c, 1d, and the outer unit being formed with legs or a flange 4. The cover 2 is furnished with a pressure gauge 5, a pressure release valve 6b, a safety valve 6c and is held to the unit 1 by pivoted clamps 3. Carrying means 23 are provided. Compressed air &c. from a bottle or other source A, filtered at B, enters the unit 1a through a valve 6 to force the solution through the pipe 6a to the air trap C, governed by a ball valve 10 so that when the liquid level in C falls, the output 11 is opened to allow compressed air &c. to go to atmosphere. Solution is admitted to the " gun " D by a trigger &c. device 16 and thence to the patient through the needle E normally covered by a shield 17. The " gun " may be provided with a venturi, cock and sight-glass so that an aspiration test, through the needle, may be made on the patient before the solution is passed through the needle to him. A T- piece 21 may be fitted to allow a plurality of " guns " to be operated, each " gun " being controlled by a valve 22. The filter B is provided with a sump and drain cock 7, 8.
Patent GB-228384-A (GB)
Title: Improvements in electric battens, floats and the like for stage lighting and for like purposes
IPC: F21S8/00
Filed: 1924-03-20
Abstract: 228,384. Moy, E. F., and Moy, Ltd., E. F. March 20, 1924. Stage and like lamps. - An electric float or batten light for stage and like purposes comprises a metal carrier 6 which forms troughs 10 for the cables so that the cables are separated from the lamp-holders 7, which are secured to insulating blocks 11. Brackets 8 provide an air space between the carrier 6 and the casing 1 which carries the reflectors 2 and in which the lamps 5 are contained, and ventilation holes 4 permit of air circulating in the space between the reflectors and the casing. The cables are secured by a clamp 35 and emerge through a nozzle 36. Coloured screens 13' are fitted in runners 16 and a wire guard 17 is provided. The batten is suspended bv brackets 18 and cables 20. As shown in Fig. 5, the casing 1 may be provided with a number of hinges 25 and a clamp 29 engaging a bar 20 to vary the inclination of the float. The batten may be placed in a recess 31 in the proscenium opening, an additional reflector 32 being provided, and also a hinge 33 to enable the batten to be swung out, as shown in Fig. 8.
Patent GB-253217-A (GB)
Title: Improvements in and relating to ships' steering gear
IPC: B63H25/28
Filed: 1925-03-17
Abstract: 253,217. Freeman, S. B., and Riddell, W. G. March 17, 1925. Steering-gear.-Relates to power driven steering-gears and consists in providing an alternative source of power on failure of the main motor and means for automatically coupling up the auxiliary power, one of the sources of power being electric. The pump 1 of a hydraulic transmission system is coupled to the main electric motor 2, which also drives a compressed air engine 3 idly. The engine 3 is connected to an air bottle or reservoir, the control valve 4 being closed by a solenoid 5 energized by the same current as the motor 2, whereby in event of current failure and the motor stopping the valve 4 opens and the engine 3 is started. Alternatively, the auxiliary power may drive a separate transmission system, but is automatically brought in on failure of the main drive. Specification 21932/09 is referred to.
Patent GB-1215794-A (GB)
Title: Improvements in or relating to the production of activated carbon
IPC: C01B31/12
Filed: 1969-02-11
Abstract: 1,215,794. Activated carbon. STANDARD OIL CO. 11 Feb., 1969 [16 Feb., 1968], No. 7238/69. Heading C1A. Activated carbon is produced by treating an aromatic carboxylic acid with sufficient electrolyte (defined) to at least form the salt of the acid, optionally drying the salt formed and thermally decomposing this salt in an inert atmosphere. Optionally the acid may be neutralized in a suitable solvent for the salt, e.g. water, with sufficient base to form the salt of the acid before adding the electrolyte. Excess electrolyte may be added to the soluble salt in order to act as a defecting agent included within the molecular structure of the soluble salt, thereby creating a defect in the molecular structure. Specified suitable electrolytes include the hydroxide, oxide, halide, carbonate, sulphate, phosphate and nitrate of the metals of Group IA or IIA of the Periodic Table, preferably potassium hydroxide. The aromatic carboxylic acid, optionally prepared by the oxidation of a carbonaceous material, e.g. petroleum coke, may be a monocarboxylic acid, polycarboxylic acid, polynuclear monocarboxylic acid, polynuclear polycarboxylic acid or a mixture thereof, but is preferably petroleum coke acid.
Patent GB-551182-A (GB)
Title: Manufacture of formals of glycols
IPC: C09D101/08
Filed: 1941-06-09
Abstract: 551,182. Formals ; cellulose derivative compositions. BRITISH CELANESE, Ltd. June 9, 1941, No. 7253. Convention date, June 8, 1940. [Classes 2 (ii) and 2 (iii)] Formals are prepared by interaction of a halohydrin of a polymethylene glycol containing at least four carbon atoms with an aldehyde or ketone in presence of an acidic etherifying catalyst (H 2 SO 4  HCl, H 3 PO 4 , Fe.Cl 3 , ZnCl 2 , AlCl 3 ). Examples give the preparation of the formal of tetramethylene chlorhydrin, and of isobutylene glycol chlorhydrin. The products are used as plasticisers for organic derivatives of cellulose, internal lubricants for plastic compositions and temporary manipulative plasticisers for yarns. They are useful in the production of cellulose derivative filaments, foils, lacquers, varnishes, plastics, and artificial leather. The Specification as open to inspection under Sect. 91 refers also to formals made by interaction of a monoalkyl ether of a polymethylene glycol containing at least four carbon atoms with an aldehyde or ketone. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1499435-A (GB)
Title: Photometric method for measuring the aggregation of blood platelets
IPC: G01N33/86
Filed: 1975-02-21
Abstract: 1499435 Measuring platelet aggregation B BRAUN MELSUNGEN AG 21 Feb 1975 [21 Feb 1974] 7346/75 Heading G1A [Also in Division G2] A method of doing this comprises placing citrated plasma in a cuvette 3 and rotating it in a vertical plane at 10 to 60 R.P.M. while passing a beam from a source 2a through a lower quadrant of the cuvette to a photo-cell 4. An aggregationinhibiting drug may have been added in vitro or to a subject. Cuvette 3 of 18 mm inside and 20mm outside diameter is filled with platelet-rich blood plasma. An optical characteristic is measured, usually optical density. Filter 5 passes 500 to 650 nm preferable 546 nm. The aperture diameter of diaphragm 6 is 0.5 to 3mm, preferably 2mm. The light passes through the lower right-hand quadrant as seen from the photo-cell. Cuvette 3 is held by O-ring 8 in drum 7 preferably rotated at 20 r.p.m. Metal block 10 is heated by a resistance unit and has a thermostat with an N.T.C. resistor to maintain the temperature at 3705C. One type of cuvette Fig. 3, (not shown) is made of glass polymethylmethacrylate or polystyrene. Another, a multi-cuvette Fig. 4, (not shown) may be of P.V.C. with two removable cover discs of polymethylmethacrylate, siliconized glass or plastics. For measuring inductive aggregation, blood plasma is mixed in siliconized glass or plastics tube 21, 9-11 mm in diameter, stirred by magnet 23, 5mm long and 2mm in diameter coated with polytetrafluorethylene driven by magnet 22 rotating at 500-1000 r.p.m., preferably 800 r.p.m. Details of preparing platelet rich citrated plasma, of which 0.5 to 1ml are used, are given. Aggregation inducers, such as adenosine diphosphate, collagen, thrombrin or adrenalin are added to the platelet suspension before rotation, as are inhibiting drugs. A potentiometer and recorder may be used to measure the signals from the photo-cell.
Patent GB-910486-A (GB)
Title: A semi-conductor device
IPC: H01L21/60
Filed: 1961-02-28
Abstract: 910,486. Semi-conductor devices. SIEMENS-SCHUCKERTWERKE A.G. Feb. 28, 1961 [April 9, 1960], No. 7347/61. Class 37. In a semi-conductor device comprising a monocrystalline plate-like body of semi-conductor material and an electrode alloyed thereto, a hollow cylindrical terminal member has one end of reduced wall thickess and slotted, the resilient tongues so formed being secured to the said electrode. As shown, a Au-B foil and a Au-Sb disc are alloyed to opposite faces of a P-type Si disc 2 at c. 700- 800 C. to produce a P+ region 3a and an N-type region 4a within the Si disc, and alloy electrodes 3 of Au-Si-B and 4 of Au-Si-Sb. A Ag foil 7 is soldered to a Mo plate 5, by means of a foil 6 made of Cu-Ag eutectic with c. 4% Ni and 4% Mn, at c. 850 C., and the Ag layer 7 is then alloyed to electrode 3 at 400- 500%. Simultaneously or separately, a hollow cylindrical member 8, e.g. of Ag which may be Au-plated, having at one end a wall of reduced thickness slotted to produce tongues which are bevelled, is alloyed at said one end to electrode 4. A disc 10, which may be of the same metal as member 8, is alloyed to electrode 4 within the member 8 to improve the current distribution over electrode 4. The optimum ratio of mean diameter of the tongued end of member 8 to diameter of electrode 4 is 1 : #2. Ge may be used in the invention which is applicable to devices having several electrodes on one face and to four-layer semi-conductor thyratrons.
Patent GB-879565-A (GB)
Title: Polymerization of vinyl and relating monomers with organometallic catalysts and organic co catalysts
IPC: E04B1/76
Filed: 1960-03-02
Abstract: Styrene, ar-monoalkyl styrenes, acrylonitrile and acrylic and alkacrylic acids and esters thereof are polymerized by dispersing the monomer in a liquid system containing a compound of the formula RnMR1m, wherein R is a cyclopentadienyl or substituted cyclopentadienyl or substituted cyclopentadienyl radical, M is zirconium or titanium, R1 is an alkoxy, cycloalkoxy or a acyloxy group or a halogen atom, n is 1 or 2 and m is 1, 2 or 3 and, when m is 3, at least one R1 must be halogen or an acyloxy group, the sum of m and n being 3 or 4, and a second compound consisting of an aliphatic, aromatic, substituted aromatic or hydroxy substituted aliphatic organic acid, e.g. acetic, propionic, oxalic, succinic, adipic, glycolic, thioglycolic, tartaric, benzoic, phthalic, toluic, salicyclic or naphthoic acid.  Titanium and zirconium compounds specified are biscyclopentadienyl titanium and zirconium dichlorides, cyclopentadienyl titanium trichloride, biscyclopentadienyl titanium monochloride, monocyclopentadienyl titanium dichloride, bismethylcyclopentadienyl titanium dichloride, monocyclopentadienyl titanium dibutoxy and dicyclohexoxy monochlorides, bis-cyclopentadienyl titanium di (trichloroacetate), indenyl titanium di- and tri-chlorides and bisindenyl titanium dichloride.  The liquid polymerization medium is preferably water, but may be an organic liquid such as benzene, toluene, xylene or cyclohexane.  When water is used as the polymerization medium, it may contain a dispersant, such as sodium lauryl sulphate or polyvinyl alcohol.  The resulting polymers may be used to make spoons, dishes, cups, an automobil tail-light housing, a bracelet, an identification disc, radome housings and in electrical insulation, adhesive and coating applications. Specification 793,354 is referred to.
Patent GB-565152-A (GB)
Title: Improvements in or relating to electric transformers
IPC: H01F27/26
Filed: 1943-05-11
Abstract: 565,152. Transformers. PARMEKO, Ltd., MEE, S. N. S., and TOONE, F. J. May 11, 1943, No. 7482. [Class 38 (ii)] The core laminations 2 of small air-cooled signal current transformers are clamped between angle-sectioned members 3 bolted together and having their outwardly extending webs 3f bent over at the top and bottom to form lugs 3a, the lower ones forming feet and the upper ones forming supports for a terminal panel 7. Coverplates 12 shaped as shown in Fig. 7, are inserted between the clamping members on each side of the core so as completely to enclose the windings.
Patent GB-215326-A (GB)
Title: Improvements in respiratory appliances for personal use
IPC: A62B23/02
Filed: 1924-03-24
Abstract: 215,326. Soc d'Etudes et de Construction de MatÚriel de Protection. May 1, 1923, [Convention date]. Respirators. - In a respiratory apparatus in which the air to be breathed is purified by passage through filtering and. absorbent materials, the layer of filtering material has a corrugated or pleated shape, and the outlet passages which conduct the purified air to the mask are so arranged as to compel the air to follow a sinuous path through the filtering and absorbent materials. To the bottom of the container 1 is secured an inner container 3 made of corrugated metal netting to the outside of which the filtering material 5 is attached, being firmly held by flanges 6, 6<1>. A strainer 7 protected with cotton gauze is fixed at the centre of the container 3, the strainer having a number of holes 9 the diameter of which increases from the top downwards. The absorbent materials 10 are held between the strainer 7 and the wall of the container 3, and are kept in place by springs 11. The absorbent materials may comprise a mixture of activated carbon and basic granulated materials or these may be used separately, being separated by a perforated longitudinal partition (not shown). Dust from the absorbent materials is prevented from reaching the tubes 17, 18 leading to the mask by a filtering layer 15. The tubes 17, 18 are connected by a readily closable union so that air is inhaled directly when the union is open, and through the container 3 when the union is closed. In the latter case air is drawn through the inlets 2 and passes through the filtering layer 5 and absorbent materials 10 to the strainer 7 and tube 17 by way of the holes 7 and tube 17 by way of the holes 9. These holes being of varying diameter, as described above, the air follows a curved downward path, as shown by the arrow f<1>, while passing through the filtering and absorbent materials.
Patent GB-800790-A (GB)
Title: Improvements in machines for harvesting sugar beet and like root crops
IPC: A01D25/02
Filed: 1956-03-10
Abstract: 800,790. Root-crop harvesters. SILK, O. A. March 7, 1957 [March 10, 1956], No. 7562/56. Class 6(3).  In a root-crop harvester of the type having shares 10 feeding an inclined endless elevator 12 running longitudinally of the direction of motion, the feeding of the crop is assisted by wheels 13 mounted above the shares. The machine is of the type described in Specification 675,729, and comprises a frame 1 mounted on tractor draught-links and provided with an endless elevator 12 having a sagging portion 12b wherein the crop is tumbled before passing to a delivery elevator 31. The wheels 13 have pneumatic rubber tyres 24 with a tractor-type tread and are carried by arms 15 pivoted on a cross-shaft 16 which also carries a pulley 21b driving the wheels through a belt 21, the drive being derived from a sprocket 22 driven by the elevator-driving chain 23, which is driven from the tractor through a shaft 33 and belt 39. Alternatively the wheels 13 may be freely rotatable. Side-plates 26 define with elevatorsurface 12a and the wheels 13 an additional tumbling space for the lifted crop, the wheels 13 being floatingly suspended by springs 17.
Patent GB-1065951-A (GB)
Title: Improvements in or relating to methods of manufacturing semiconductor devices
IPC: H01L29/73
Filed: 1964-03-29
Abstract: 1,065,951. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 29, 1964 [March 29, 1963], No. 7583/64. Heading H1K. In the production of a semi-conductor device, donor material is diffused into an N- type body whilst an alloy acceptor melt is locally present at the surface of the body, the melt absorbing a large amount of the donor so that diffusion in the region under the melt is considerably reduced in comparison with more distant regions. Fig. 1 shows a stage in the production of NPN transistors in which an antimony doped N-type 0À5 ohm-cm. germanium plate 1 has been heated to 800 C. for 2 hours in contact with a supply of indium-germanium alloy (60% at In) to provide P-type zone 2 by diffusion of indium. A plurality of deposited aluminium plus indium rings 4 were then alloyed at 730 C. for 1 minute to the surface to provide recrystallized P-plus regions 5. The bottom region including layer 2 is etched away and the whole subjected to arsenic vapour at 650 C. for 9 minutes to form N-type regions 14 and 13 (Fig. 4) between and inside rings 4; during this diffusion process the ring 4 and recrystallized region 5 melt and shield the urderlying area from diffusion by the arsenic and also tend to absorb arsenic and provide a 1Á high resistivity layer between layer 13 and the recrystallized regions. The individual elements are then separated and the upper edges etched in a mixture of HF, HNO 3 , H 2 O and alcohol to provide a plurality of NPN transistor elements as shown in Fig. 6. Gold wires 22 and 23 are connected to emitter and base regions 13 and 5 and a gold coated iron-copper-nickel alloy electrode 20, 21 is soldered to N + region 14 on collector region 1. In an alternative embodiment (Fig. 8, not shown) arsenic is prediffused into a P-type germanium block to provide an N-type layer which is then subjected to an alloying and diffusing process similar to that described for Figs. 1 and 6, the resulting alloyed P- type zone now constituting the emitter and the diffused N + zone the base, of a PNP transistor. Fig. 7 shows a further embodiment in which layers 31 of aluminium-indium are alloyed at 700 C. for 1 minute into a P-type germanium body 30 to form a P + region. Then arsenic is diffused for 20 minutes at 800C to form N-type layer 35 and also a thinner and shallower N- type region 34 under the molten alloyed region 31. Etching away the upper edge regions at 37 provides a PNP transistor structure. Silicon may be used in place of germanium and alloys of aluminium, gold, nickel or aluminium, lead may be used in place of the aluminium, indium. Electrodes may consist of gold, antimony alloys and phosphorus and antimony are mentioned as possible dopants. The initial basic wafer could consist of a graded resistivity block instead of homogeneous P or N type material, the various regions being provided by diffusion or epitaxial deposition.
Patent GB-1162796-A (GB)
Title: A device for Attachment to Electric Hand Drills for Wood-Working Operations
Inventor: BLADEN GRAHAM STUART
IPC: B23Q9/00
Filed: 1966-02-22
Abstract: 1,162,796. Woodworking. G. S. BLADEN. 5 Dec., 1966 [22 Feb., 1966], No. 7681/66. Heading B5L. A device for attachment to an electric drill D to enable routing and like working operations to be performed comprises support means 13 upstanding from a base-plate 10 for bearing on the surface of a workpiece, a top plate 11 carried by the support means in parallel relation to the base-plate and movable towards and away from the base-plate, the top plate having means for retaining the nose of the drill with its chuck extending downwardly below the top plate and with the chuck axis normal to the plates, and an aperture 16 through the base-plate whereby a tool R carried by the chuck can engage the workpiece. The support means consist of a pair of pillars 13 received in bosses 14 on the top plate, springs 15 supporting the top plate which has an aperture 18 formed in the plate and a portion 11a which is clampable by screws 17 against a shoulder F on the drill. The device is movable by means of handles 19 one of which is screwthreaded to engage a pillar 13 to lock the top plate in a predetermined position. The depth of cut of the tool can be determined by a depth gauge 20, and a fence or guide may be carried beneath the base-plate which is covered with synthetic material 10a.
Patent GB-360783-A (GB)
Title: Improvements in or relating to motor vehicle bodies
IPC: B60J7/053
Filed: 1931-03-13
Abstract: 360,783. Road vehicle opening tops. BISHOP, W. H., 48, Moor Street, and COLLEDGE, T. P., 8, Constitution Hill, both in Birmingham. March 13, 1931, No. 7714. Addition to 322,673, [Class 108 (i), Road vehicles, Body details &c. of]. [Class 108 (i).] In the vehicle roof described in the parent Specification the guides and the upstanding rim are replaced by an upstanding strip of channel section which serves both as the guide and as the weather sealing means the strip being arranged along each side of the roof and across the front. The strip 1 is of the section shown in Fig. 6 and is arranged as shown in Fig. 1, the rear of the roof opening being provided with an upstanding wooden bar 2. The panel frame 3 is provided at the front with spring- controlled pivoted arms 6 carrying sliders 7 provided with fibre &c. blocks 8 while the rear of the panel frame is provided with sliders 10 pivotally carried by brackets 11 and similarly provided with fibre &c. blocks. The pivoted arms permit the panel to be raised to clear the front transverse portion of the strip 1. A pivoted catch 18 carried by a handle 13 and engaging a latch 19 may be provided at the front of the panel or a screwed means 24, 25, Fig. 9, provided with a rubber &c. face may be adapted to engage the face of the strip 1. In this form a diamond-shaped projection 23 secured to the front slider 22 enters the channel strip 1 and by its shape allows of the panel being rocked sufficiently to permit of its clearing the strip 1.
Patent GB-510509-A (GB)
Title: Improvements in pipe joints or couplings
IPC: F16L19/10
Filed: 1939-03-10
Abstract: 510,509. Pipe joints. BROWN, D. J. K. March 10, 1939, No. 7767. [Class 99 (i)] A thin copper or other soft metal sleeve d is a loose fit in a socket g and is deformed by a coupling nut f, its ends being forced into the pipe b by conical shoulders e, h on a gland ring and in the socket, the whole of the sleeve except its deformed ends being expanded against the inner wall of the socket.