baber/WOPTO huggingface dataset:
Patent GB-167666-A (GB)
Title: New or improved apparatus for use in making dops for holding diamonds and other precious stones during grinding or polishing
IPC: B24B9/16
Filed: 1920-07-09
Abstract: 167,666. Davids, W. J. July 9, 1920. Moulds.-Apparatus for casting dops for holding precious stones during grinding or polishing comprises a setting-tool in which the stone is adjusted and by which it is placed in a mould in correct position, the mould having means for holding the stone during the casting. The setting-tool comprises a blade s<1> having a gauging- gap s' which corresponds with the cross-section of the mould, a hinged arm s<4> which may be secured in the position shown bv a pin s<11>, and adjustable setting-pins s<3>, s<5>. The mould is provided with a transverse slot for receiving the blade s<1>, and with arms g for gripping the stone at four points. After the stone has been secured by the arms g, the arm s' is swung over to remove the pin s<5> and a pouring-gate applied to the mould.
Patent GB-860265-A (GB)
Title: Improvements in or relating to methods of applying 3-dimensional ornamentations to th
IPC: A43B23/24
Filed: 1957-05-09
Abstract: 860,265. Ornamenting by moulding. MODERN SHOE MAKING MACHINERY CORPORATION. May 9, 1957 [Dec. 26, 1956], No. 19815/60. Divided out of 860,263. Class 87(2). [Also in Groups VII and XVI] Three - dimensional ornamentation is applied to the surface of an article, e.g. a shoe upper, by sandblasting or embossing the article in a pattern area, and moulding plastic material on to the prepared pattern area. In the example shown in Fig. 9 a stencil (not shown) is used to sandblast a design 392 on to a shoe upper portion 387 which is then placed between mould parts 394, 395 having locating pins 396. Plastic material injected through a sprue 397 enters channels 398 having the same configuration as the design 392. The plastic material adheres to the roughened portions but is readily removable from the remaining polished areas. The injection moulding apparatus described in Specification 860,263 may be used. Plastic material may also be used as a filler for an embossed rib, Fig. 10 (not shown).
Patent GB-1181584-A (GB)
Title: Evaporator.
Inventor: LEBL MIROSLAV
IPC: B01D1/00
Filed: 1968-04-26
Abstract: 1,181,584. Evaporators; separation of salts from solutions. CESKOSLOVENSKA AKADEMIE VED. 26 April, 1968 [17 May, 1967], No. 19858/68. Heading B1B. An aqueous solution of a salt, such as potassium or sodium chloride, is concentrated by evaporating it in vessel 9, the solution being heated by heating elements 8 disposed slightly below the surface of the solution. The lower part of vessel 9 is surrounded by cooling jacket 10, and is connected to receptacle 13 for the collection of salt crystals. The vapours are condensed on the inner surface of hood 1 which is cooled by condenser 3. The condensate collects in gutter 4 and is discharged through outlet 22. Gases are removed from the evaporator via duct 18 and porous plate 19. The crystals which collect in receptacle 13 are pushed by piston 17 into cell 14 which has a filter base 15. When the cell is full of crystals, it is removed and emptied. The cell is then replaced, and a fresh batch of solution is introduced through inlet 16. Instead of piston 17, a plastic screw conveyor may be installed in receptacle 13. Vessel 9 may be made of silica glass. Heaters 8 may be electric coils surrounded by silica glass tubes. Hood 1 may be lined with polytetrafluoroethylene.
Patent GB-1437868-A (GB)
Title: Arylpiperazinoalkyl esters
IPC: C07D295/088
Filed: 1974-05-06
Abstract: 1437868 Arylpiperazinoalkyl esters SYNTHELABO 6 May 1974 [9 May 1973 29 Jan 1974] 19873/74 Heading C2C Novel compounds of Formula I wherein n is an integer of 1 to 4; R 1  is a C 1-10  alkyl group; a phenyl group optionally substituted by one to three substituents, which may be the same or different and which is a halogen atom, a hydroxy, acetoxy, amino or C 1-5  alkoxy group, a group of Formula III wherein R 3  is a hydrogen or halogen atom, or a trifluoromethyl, trifluoromethoxy or trifluoromethylthio group; a p-(C 1-5  alkoxy) benzyl group; a group of formula Ph-C(Ar)(R 4 )- wherein Ar is a phenyl, cyclohexyl or piperidino group and R 4  is a hydrogen atom; a group of Formula IV wherein m is an integer of 2 to 6; a group of Formula V wherein R 5  is H or Halogen or R 5  is a group of Formula VI wherein p is 0 to 2 and each of the groups R 6 , which may be the same or different, is a halogen atom, a C 1-3  alkyl group or a trifluoromethyl, trifluoromethoxy or trifluoromethylthio group; a group of formula R 7 NH- wherein R 7  is a C 1-6  alkyl group or a phenyl or naphthyl group; or a group of Formula VII wherein R 8  is a hydrogen or chlorine atom; and R 2  is a chlorine atom, or a trifluoromethyl, trifluoromethoxy or trifluoromethylthio group; or an acid addition salt thereof with a pharmaceutically acceptable organic or inorganic acid are prepared by one of the following methods (a) reaction of compounds of Formulµ VIII and IX or (b) reduction of a compound of Formula X or (c) a compound of Formula IX above is esterified by reaction with and acid, acid halide, acid anhydride or ester, or (d) a compound of Formula XI wherein X is Cl or Br is reacted with a compound of Formula XII 2 - (4 - m - Chlorophenylpiperazino) - ethyl 2 - nitrobenzoate is prepared by reacting 2- nitrobenzoyl chloride and 2-(4-m-chlorophenylpiperazino) -ethanol. Pharmaceutical compositions in conventional forms for oral, rectal or parenteral administration and having analgesic activity comprise an above novel compound and a carrier or diluent.
Patent GB-281203-A (GB)
Title: Improvements in and relating to sliding calipers
IPC: G01B3/20
Filed: 1927-07-27
Abstract: 281,203. Borel, M. A., (Assignee of Challet, E,). June, 11, 1927, [Convention date]. Drawings to Specification. Linear-dimension gauges.-In sliding calliper gauges, a slight recess is made running along the whole length of the scale of the bar, having a rough base and wide enough to permit transverse lines to be made therein by a pencil or pen. The recess may be formed with longitudinal groovings to make it rougher.
Patent GB-1016906-A (GB)
Title: Improvements in or relating to the measurement of the quantity of silver in photographic films
Inventor: RHODES JOHN RATHBONE
IPC: G01N23/223
Filed: 1962-05-24
Abstract: 1,016,906. X-ray determination of silver content of photographic film. UNITED KINGDOM ATOMIC ENERGY AUTHORITY, LONDON. May 16,1963 [May 24,1962], No. 20049/62. Heading G1A. The silver content of a photographic film 3 is determined by exposing the film to exciting radia-  tion from a low energy bremsstrahlung source 1 and measuring the intensity of the characteristic K X-rays from the silver through a differential filter arrangement consisting of two separate filters 6R and 6M, one of which is effectively transparent to the said characteristic K X-rays whilst the other is opaque. The use of two such filters enables the apparatus to discriminate against undesirable background X-radiation. In the arrangement shown a moving film 3 passing over lead "irises" 9 is irradiated by two bremsstrahlung sources 1 such as Promethium 147/Aluminium in gold holders 7 through source filters 8 of antimony powder which attenuate low energy X-rays from the sources and provide a peak in the X-ray spectrum at 26. 4 keV, this peak intensity and the time of exposure of the film being such that fogging will not occur. Fluorescent X-radiation from the film passes through a rhodium filter 6(R) in one of the detector units shown and through a molybdenum filter 6(M) in the other to radiation detectors 2R and 2M respectively, the emergent radiation being detected by scintillation counters 2(R) and 2(M) respectively each having a sodium iodide crystal 4 with a beryllium window 5. The silver content of the film 3 is determined by subtracting the count rate obtained from the counter 2(M) from that from the counter 2(R) by means of a subtraction circuit 10 feeding a meter. The output from the circuit 10 may alternatively be used to control a machine in which the film is being coated. In a further embodiment a single detector unit is used (Fig. 1 not shown) to investigate a stationary film, two measurements being taken one with a molybdenum filter and the other with a rhodium filter.
Patent GB-596903-A (GB)
Title: Improvements in or relating to compressors or the like
IPC: F04D19/02
Filed: 1945-08-03
Abstract: 5 9 6, 9 0 3. Axial-flow compressors. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., BAILEY, W. and ROY, J. Aug. 3, 1945, No. 20076. [Class 110 (i)] A compressor comprises a row of high cambered impulse rotor blades 81 adapted to induce in the fluid flowing therethrough a high kinetic energy mainly in the form of a high swirl velocity, and one or more rows of low cambered reaction rotor blades C adapted to rotate in the opposite direction to the blades B<1> to convert the said kinetic energy into pressure energy. A row of low-cambered rotor blades, with or without a row of low-cambered stator blades may be interposed between the contra-rotating rows, and an initial row of stator blades A may be used to introduce pre-swirl. Since for efficient operation all the swirl cannot be taken out in the contra-rotating row C, a row of stator blades D may follow this row.
Patent GB-390379-A (GB)
Title: Improvements in or relating to exposure control devices for photographic printing apparatus
IPC: B61C9/50
Filed: 1932-07-16
Abstract: 390,379. Controlling printing- exposures. KODAK, Ltd., Kingsway, London.-(Assignees of Fuller, A. B. ; 343, State Street, Rochester, New York, U.S.A.) July 16, 1932, No. 20176. Convention date, Aug. 10, 1931. [Classes 98 (i) and 98 (ii).] Relates to exposure-control devices for printing or enlarging, in which the printing lamp acts on a photoelectric cell which regulates the charge or discharge of a condenser, thereby controlling the operation of a relay controlling the lamp circuit or a shutter, reference being made to Specifications 339,781, [Class 98 (i), Photographic cameras &c.], and 344,900. According to the invention, in order to provide for a number of predetermined exposures independent of lamp fluctuations, two or more condensers of fixed capacity 6, 9, 10, 11, Fig. 1, can be connected in parallel with the cell 5 which is acted on by the lamp 1 (used for printing the negative 4) and thereby determines the discharge of the condensers. Initially the lamp control relay 13 is de-energized, the switch 3 of the lamp circuit 2, 1 is open, and the switch 8 closed for charging the condensers by the battery 7. The grid of a thermonic valve 15 is thereby also negatively biased. To start an exposure, a switch 12 is temporarily closed, thereby completing a circuit through relay 13 and a closed relay switch 14. The energized relay 13 opens the charging switch 8, and closes the lamp circuit switch 3, which thereby puts and maintains the lamp 1 and valve 15 in circuit when the starting switch 12 is released. During the exposure the condensers discharge through the cell 5, and the negative bias on the valve 15 decreases until at a certain value the current through the valve 15 energizes the relay 16 to open the switch 14, thereby also de-energizing relay 13 and consequently opening the switch 3 and reclosing the condenser charging switch 8. In the Specification as open to inspection under Sect. 91, an arrangement, Fig. 2 (Cancelled), is described in which a variable condenser 6<1> is charged during the printing exposure, the cell 5 being in series with the battery 7, and the charging switch 8 closed when the lamp circuit switch 3 is closed. This subject-matter does not appear in the Specification as accepted.
Patent GB-998386-A (GB)
Title: Method of producing electrical semiconductor devices
IPC: H01L27/102
Filed: 1962-05-25
Abstract: 998,386. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. May 25, 1962 [May 26, 1961], No. 20204/62. Heading H1K. A semi-conductor, e.g. silicon or germanium, device is made by evaporating a layer of amorphous semi-conductor doped with impurities of one conductivity type on a body or layer of the opposite conductivity type and then heating to melt a small area or areas of the layer so that upon recrystallization a PN junction is formed at each area. The body or layer may be cut from a grown crystal, or may be formed by deposition on a cooled substrate to give an amorphous layer which is subsequently crystallized by heating, or on a heated substrate to form a crystalline layer directly. Suitable materials for the substrate are metal, which also forms an electrode, glass, quartz, or ceramic coated with metal by evaporation, or monocrystalline high resistivity semi-conductor. In the latter case the layer may be deposited epitaxially by thermal decomposition of a compound of a semiconductor. Localized heating of the amorphous layer may be produced by bombardment with a beam of electrons. This results in a rapid heating and cooling suitable for producing the abrupt junctions required in tunnel diodes. More diffuse junctions are formed by extending the period of bombardment or by subsequent reheating. The impurities are introduced into the amorphous material prior to or during evaporation. In a typical embodiment, Fig. 2, after deposition of metal 2, semi-conductor 3, and amorphous semi-conductor 4 on glass or quartz substrate 1, area 6, is melted and large area metal contact 7 provided on the recrystallized layer by evaporation. In a similar method to form a diode matrix the amorphous layer is deposited through a mask to form isolated areas in each of which a localized PN junction is formed by scanning with an interrupted electron beam. A transistor configuration is produced by melting two closely spaced areas, or by depositing the amorphous material on both faces of a monocrystalline wafer and melting opposed areas thereof.
Patent GB-224583-A (GB)
Title: Improved means for condensing steam and other vapours
IPC: F28B1/06
Filed: 1923-08-09
Abstract: 224,583. Ramsay Condensing Locomotive Co., Ltd., and Jones, G. F. Aug. 9,1923. Surface condensers.-Vertical condensing tubes 13 are arranged in a casing having a horizontal throughway through which air is blown by a fan 20 &c., and water is forced over them in jets or spray in a direction transverse to that of the air current, the water being under such pressure as to issue with turbulent, as distinct from stream-line motion. The water is introduced through a chamber 25 surrounding the upper ends of the tubes and issues either through simple perforations in the floor of the chamber 25 or through annular openings surrounding the tubes. To catch water entrained by the air-current a perforated wall 31 is arranged at the end of the casing, behind which is a chamber through which water passing through the perforations flows to the outlet 33. A modification is described in which the air makes two passes over the tubes. In another modification, the water is introduced through slots in the sides of chambers between the tubes, which chambers may be vertically movable. The water may be introduced continuously or intermittently, and the film of water may be thinned as described in Specification 185,462. The tubes may be formed with external longitudinal serrations. Specifications 15351/94, 4266/96, and 16659/96 also are referred to.
Patent GB-619847-A (GB)
Title: Improvements in or relating to vibration-absorbing supports
IPC: F16F1/54
Filed: 1946-04-15
Abstract: 619,847. Resilient mountings. THIRY, L. F. April 15, 1946, No. 20341/48. Convention date, Oct. 20, 1945. Divided out of 619,516. [Class 108 (iii)] A vibration-absorbing support comprises two rigid members 20, 26, each having the same number of circumferentially-spaced seats with alternate seats being in circumferential alignment and adjacent seats being offset axially, each circumferentially-spaced set on one member lying opposite to one circumferentially-spaced set on the other member and substantially in circumferential alignment with the second set on the other member, resilient cushioning blocks 29 being situated between the seats. The member 20 has a series of seats 23 alternating with a series of oppositely inclined seats 24. The seats 23 lie opposite to seats 28 on the other member 26 which is also formed with seats 27 lying opposite the seats 24. The member 26 carries a cup-shaped member 25 and the member 20 is formed with a mounting flange 21 having holes 22. In the construction shown, the cushioning blocks are incorporated in a cushioning unit of the kind described in Specification 619,516, in which cushioning blocks 29 alternate with buffer blocks 30 and are connected by comparatively thin connecting pieces. The buffer blocks are of such a width that they are not engaged by the seatings in the normal relative position of the members 20, 26 but engage them on a predetermined degree of deflection. Each buffer block lies partly between adjacent oppositely-facing pairs of seatings, in order that it may limit deflection in either direction of relative movement. The invention is applicable to resilient mountings of the kind. described in Specification 619,137.
Patent GB-1133620-A (GB)
Title: Edge connector for printed circuit boards
Inventor: BOWLEY THOMAS WILLIAM
IPC: H01R12/71
Filed: 1966-05-09
Abstract: 1,133,620. Edge connectors for printed circuit boards. CARR FASTENER CO. Ltd. 24 Feb., 1967 [9 May, 1966], No. 20374/66. Heading H2E. Printed circuit boards 15 and 16 are clamped between opposed insulating members 1a 2a, so that printed contacts on respective edges of the boards are interconnected by double-ended contact springs 7 housed in individual parallellyarranged grooves in one or both of the members 1a 2a. Each contact spring comprises a pair of arms 7-8, for engaging the respective printed contacts, and a central part 5 with barbs 6 which bite into the insulating member 1a or 2a. Pegs 9 on the member la each engage aligned apertures in a printed circuit board 15 or 16 and the member 2a, the members 1a and 2a being secured together by a screw-threaded bolt 11, which extends from a mounting plate, and a nut 14.
Patent GB-713014-A (GB)
Title: Improvements in wedging arrangements for pit props
IPC: E21D15/28
Filed: 1951-08-30
Abstract: 713,014. Pit props. GUTEHOFFNUNGSHUTTE OBERHAUSEN AKT.-GES. Aug. 30, 1951 [Aug. 30, 1950], No. 20527/51. Class 20 (2) In a telescopic pit prop in which the inner and outer parts 16, 16' are locked together by stepped opposed wedges 1, 2 in a yoke 18 and a tightening wedge 4 driven between the steps, the step on the wedge 2 is formed on an abutment 3 adapted to be moved by a compensating wedge 5, relative to the wedge 2 to take up play due to inaccuracies in manufacture, before the wedge 4 is driven in. The wedge 5 engages the wedge 2 and is contained in a slot in a hanger 15 which slides in a slot in the wedge 2 and is formed in one with the abutment 3. The wedge 4 is provided with stops at each end to limit its movement and a spring 6 moves it to its inoperative position. Friction linings 20, 21 engage opposite sides of the inner prop member 16.
Patent GB-833063-A (GB)
Title: Improvements in or relating to belt-fastening machines
Inventor: POTTER JOHN JAMES
IPC: F16G3/00
Filed: 1957-06-29
Abstract: 833,063. Belt-fastening appliances. HAYDEN-NILOS Ltd. May 30, 1958 [June 29, 1957], No. 20611/57. Class 80 (1). In a belt-fastening machine wherein wire hooks 16, Fig. 1, in a comb bar 14 are pressed into a belt end by a hand-actuated jaw unit 12 which is automatically moved transversely, after each pressing, by a pawl 11 engaging a ratchet bar extending between the skid-shaped side frames 1 of the machine, the belt is clamped between a fixed transverse bar 19 and a movable transverse bar 20, pressure being applied at each end of the bar 20, Fig. 5, by a spring 26 and over-centre crank-pin 28 on a hand lever 31. Each end of the bar 20 slides in a standard 21 welded to the machine frame 1. At each side of the machine a lever 31 is pivoted at 32 to standard 21, the crank-pin 28 on the lever carrying a connecting rod 24 with a shoulder washer 25 bearing against the spring 26. The rod 24 passes through a clearance hole in the bar 20 and carries a stop collar 27. Full clamping pressure is applied by swinging the lever 31 slightly over dead-centre to meet a stop 37. The clamp is released by swinging lever 31. through slightly more than 180 degrees to meet the washer 25, the two levers 31 then lying inside the side frames 1. The spring 26 allows belts of different thicknesses to be clamped. The fixed bar 19 is of T- section, the bar 20 being of inverted U-section with bevelled lower edges. In a modification, Fig. 8 (not shown), the connecting rod on each crank-pin 28 is shortened and pivoted to a slider engaging the upper surface of a compression spring located in a housing carried by the bar 20.
Patent GB-365031-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/06
Filed: 1930-07-08
Abstract: 365,031. Circular knitting-machines. JACQUARD KNITTING MACHINE CO., Inc., 1924, Hunting Park Avenue, Philadelphia, U.S.A.- (Assignees of Sirmay, J.; 4939, B. Street, Philadelphia, U.S.A.) July 8, 1930, No. 20660. Convention date, June 5. [Class 74 (ii).] A rib multi-feed machine is provided with means at one feed adjustable into and out of operation for knitting on a certain lot of nee dles in one bed and with similar means at another feed which comes into action when the firstmentioned means is out of action. The invention is described as applied to a four-feed machine provided with rotary cams and with jacquard mechanism arranged in sections around the machine. At one feed, A, a certain limited lot of needles is arranged for producing, say, 1/1 rib fabric while at feed D 2/2 rib, say, is producible. Feeds B, C (not shown) may produce the same stitch as feeds A, D, or it may be otherwise. In the dial long butt needles 13 are arranged in pairs followed by a short butt needle 14 and similarly with the cylinder needles 18, 19. At feeds A, C thin cams 20, 21 engaging only the long butt needles are used, while at feeds B, D cams 22, 23 thick enough to reach all the butts are used. When cams 20, 21 are in action and cams 22, 23 are out of action 2/2 fabric is knitted at feeds A, C. There are two stitch cams 24, 26 at each feed, one of them drawing somewhat tighter fabric than the other and employed when 1/1 rib is being made. These cams are adjustable to draw either long or short stitches or to be inoperative. They are controlled by a bob pin 77 acting on striker arms 148, 149. The other dial and cylinder cams are similarly controlled. The bob pins are preferably concentrated at one station and operated by a perforated paper &c. pattern band. A change-speed gear allows the machine to operate more slowly at such times.
Patent GB-859005-A (GB)
Title: Improvements in or relating to semi-conductive devices
IPC: H01L23/36
Filed: 1957-07-01
Abstract: 859,005. Semi-conductive devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 1, 1957 [July 4, 1956], No. 20693/57. Class 37 A semi-conductor element, e.g. a transistor or a crystal diode, is secured directly or indirectly to a cooling plate by a thermal shrinking step, i.e. by the production of a temperature difference between the parts to be joined, the colder part being introduced into an aperture in the hotter part so that, at equal temperatures, one part is clamped tightly by the other part. As shown, a transistor comprising a body 1 of n-type Ge, an emitter 4, an annular base electrode 5, and a collector 6 consisting of a layer of In, is soldered to a cylindrical support member 2 of Au-plated Mo, and etched. A Cu cooling block 3 has a bore the diameter D of which is slightly smaller than the diameter S of the support member 2, and the support member is introduced into the bore when a sufficient temperature difference between support member and block has been established by heating the block, or cooling the transistor and support member as by immersion in liquid air, or both. To increase the contact area between contact member and bore, both may be given star-shaped cross-sections.