baber/WOPTO huggingface dataset:
Patent GB-1062284-A (GB)
Title: Improvements in or relating to processes for the manufacture of layers of semiconductor material
IPC: C23C16/02
Filed: 1964-05-08
Abstract: In a process for depositing germanium from a gaseous halogen-containing compound on to a heated, preferably monocrystalline, germanium carrier, a cover plate is initially arranged parallel to, and 0.1 - 1 mm. from, the carrier, so that an atmosphere containing hydrogen halide is established between the plate and the carrier and germanium is removed from the carrier, and the plate is subsequently removed for deposition. The germanium compound may be GeCl4 or GeBr4, and may be mixed with H2 in the ratio of 0.01-0.05:1 resp.  Doping agents may be added to the gases, and are prevented from being deposited in the first stage by the plate. The plate may be of graphite, quartz, or germanium, or of carbon coated with germanium.  The carrier, which may be initially lapped or mechanically polished, doped, and annealed in hydrogen, is heated to 1200-1250 DEG C., e.g. by inductive heating of a base plate. Several carriers may be treated simultaneously using a slotted cover plate, the solid parts being adjacent to the carriers.  Reference has been directed by The Comptroller to Specification 914,042.ALSO:In a process for depositing silicon from a gaseous halogen-containing compound on to a heated, preferably monocrystalline, silicon carrier, a cover-plate is initially arranged parallel to, and 0.1-1 mm. from, the carrier, so that an atmosphere containing hydrogen halide is established between the plate and the carrier and silicon is removed from the carrier, and the plate is subsequently removed for deposition. The silicon compound may be SiCl4, SiHCl3, or SiBr4, and may be mixed with H2 in the ratio of 0.01-0.05: 1 resp.  Doping agents may be added to the gases, and are prevented from being deposited in the first stage by the plate. The plate may be graphite, quartz, or silicon, or of carbon coated with silicon. The carrier, which may be initially lapped or mechanically polished, doped, and annealed in hydrogen, is heated to 1200-1250 DEG  C., e.g. by inductive heating of a base-plate. Several carriers may be treated simultaneously using a slotted cover-carriers.  Reference has been directed by the Comptroller to Specification 914,042.
Patent GB-856156-A (GB)
Title: An improved under-pressure ferrule
Inventor: COOKE FRANK
IPC: F16K27/02
Filed: 1956-06-21
Abstract: 856,156. Pipe couplings. PASS & CO. Ltd., E. Sept. 20, 1957 [June 21, 1956], No. 19193/56. Class 99(1). [Also in Group XXIX] A ferrule, for insertion in a water main whilst under pressure, comprises a union 11, for threading to the main, screwthreadedly engaged by a body 10 and accommodating an 0-ring 21 in a groove to effect a seal with the body which may be rotated relative to the union without destroying the seal. A plug 23 screw threadable into and seatable in the union to obturate flow therethrough (as shown) may be withdrawn into a threaded portion 27 of the body and the plug stem is sealed by a cap screwed onto the body and provided with a sealing ring 24.
Patent GB-216389-A (GB)
Title: Improvements in and relating to alloys
IPC: C22C38/40
Filed: 1923-07-27
Abstract: 216,389. British Thomson-Houston Co., Ltd., (General Electric Co.). July 27, 1923. Alloys.-Iron alloys contain 25-40 per cent of nickel, 7-9 per cent of aluminium, and 7-15 per cent of chromium, with or without the addition of about 1 per cent of a grain refining material such as titanium or manganese, or of both. A preferred composition is 30 per cent of nickel, 8 per cent of aluminium, and 10 per cent of chromium. The iron base may be steel containing 0.02 per cent or less of carbon, 0.04 per cent or less of sulphur, 0.03 per cent or less of phosphorus, and 0.15 per cent of silicon. The alloy is preferably made in a basic lined electric furnace, the iron, nickel, and chromium being melted in the furnace and tapped on to the aluminium.
Patent GB-1100634-A (GB)
Title: Frequency divider with variable digital ratio
IPC: H03K21/00
Filed: 1965-05-07
Abstract: 1,100,634. Electronic counters. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 7 May, 1965 [14 May, 1964], No. 19344/65. Heading G4A. Apparatus for dividing a fixed frequency by a large number comprises a programme unit which is stepped as components of said number are attained, the completion of the programme issuing a pulse of the desired lower frequency. The units, decimals and hundreds of the divisor are set up on dials U, D, C so as to mark matrices in a combined marking device 5. These matrices are connected to the outputs of a binary counter 2 so as to represent u + a, 10d + b, 100c - e/5 and p = e - a - b, where a and b are pulses added to the units and tens programme cycles, e is a number deducted from the total of 5 hundreds programme cycles, and p is a make-up number to correct for the adjustments. At the beginning of a programme counters 2 and 4 are at zero, flip-flop 15 is at 0 and gate 12 is open. Input pulses at 7 advance counter 2 until it attains the value u + a when AND gate 24U opens to pulse AND gate 26U, the other input of which is already marked by AND gate 28U because of the zero setting of programme counter 4. Flip-flop 15 is therefore switched to close gate 12 and open gate 13 to one input pulse from 7 whereby counter 2 is returned to zero. At the same time 15 pulses lead 18 to step the programme counter 4. Restoration of counter 2 acts through inverter 7 and gate 19 to restore flip-flop 15 so that the tens programme begins. The tens programme is followed by the make-up programme and five hundreds programmes, AND gate 26C operating five times under the control of 28C and 29 while programme counter steps from 3 through 7 to 0. A rectangular waveform is obtained from the last stage of the programme counter 4. By suitable arrangement of the controlling matrices (Fig. 4, not shown) the output waveform can change polarity at exactly or substantially half-way, according to whether the divider is even or odd.
Patent GB-335270-A (GB)
Title: Improvements in or relating to valve operating mechanisms for fluid pressure engines, pumps or compressors
IPC: F02M59/34
Filed: 1929-06-25
Abstract: 335,270. Ricardo, H. R. June 25, 1929. Regulating delivery by opening suction valves; valve gear.-In valve-operating mechanism for fluid-pressure engines, pumps, or compressors, the inlet valve F, e.g. of a fuel pump, is operated by a rocking cam H, a tappet G, and a face cam J which moves with the tappet in the direction of the cam axis and has a circumferential wedge-shaped surface, so that, by rotating the cam, the lost motion between the tappet and the valve stem may be varied. The cam may be rotated by means of a pinion K<2> and a circular rack L, a fine adjustment being effected by rotating the rack. In the case of a number of fuel pumps, all the valves F may be simultaneously adjusted by connecting the shafts on which the racks L are mounted, means being provided for the separate rotary adjustment of the rack. Specifications 293,820 and 335,207 are referred to.
Patent GB-194718-A (GB)
Abstract: 194,718. Aktiebolaget C. E. Johansson. March 10, 1922, [Convention date]. Eccentric-actuated pumps ; rods, arrangement of; stroke, varying; mounting; multiple-delivery piston pumps.-A lubricating-pump of the reciprocating and oscillating plunger type comprises one or more barrels 2, supported in apertures in the bottom of the reservoir and provided with inlet and outlet ports 4, 5 controlled by the plunger 7 which has a bore 18 for the admission of the oil to the barrel through the ports 4, 19 during the suction stroke, and for its discharge through the ports 20, 5 during the delivery stroke. The plunger is revolubly supported by a head 8 in a member 9 reciprocated by an eccentric 11, and during each stroke is oscillated by a reciprocating rack 24 engaging a pinion 23 on the plunger, the rack being operated by a cam on the shaft 12. The stroke of the plunger may be adjusted by means of a screw 14 engaging the eccentric 11. The member 9 is guided by rods 16 carried by brackets 17 on the pump casing. In the Specification as open to .inspection under Sect. 91 (3) (a) it is stated that the rack 24 may be replaced by a rod connected to a crank on the plunger, and the rod or the rack may be operated by levers engaging an eccentric on the shaft 12. This subject-matter does not appear in the Specification as accepted.
Patent GB-240602-A (GB)
Title: Improvements in or relating to imitation sundaes, parfaits and other iced dishes
IPC: G09F19/10
Filed: 1924-08-16
Abstract: 240,602. Tooke, C. A., and Soda Fountains, Ltd. Aug. 16, 1924. Models. - Imitation sundaes and other iced dishes for shop window exhibition &c. are made by putting into a receptacle A a lowermost layer of paraffin wax 11 tinted to represent pineapple, then a layer of tinted plaster of paris 12 to represent icecream, then a layer of tinted and seeded resin 13 to represent crushed fruit and a top protecting layer of tinted plaster of paris 14 representing ice - cream. which may be embellished with an imitation cherry 15 made of resin. The materials used and their arrangement vary according to the dish which is to be imitated. For example, material such as crumpled tinted gelatine &c. may be used to represent an ingredient.
Patent GB-890558-A (GB)
Title: Improvements in water spray steam irons
IPC: D06F75/18
Filed: 1958-06-18
Abstract: 890,558. Steam irons. GENERAL ELECTRIC CO. June 18, 1958 [June 19, 1957], No. 19489/58. Class 138 (2). A steam iron has a water sprayer device and a steam generating chamber 10 which is electrically-heated and a valve assembly 21, 26 providing a flow of water from a reservoir 14 into the chamber to be flashed into steam for discharge through a nozzle 38 of a tube 37, water being discharged through a tube 41 into the steam flow and atomized thereby. The valve assembly includes a valve member 26 manually adjustable to have positions in which water flows (1) only into the chamber 10, (2) into the chamber 10 and the tube 41 or (3) does not flow from the reservoir 14, so that the appliance may be (1) a steam iron, (2) a spray iron or (3) a dry iron, by means of a button 32 engaging a shoulder 35 on the handle 3 to obtain steam, the member 26 being normally closed by the action of a spring 31 on the valve stem 27. A pressurebalancing tube 40 leads from the chamber or cavity 10 into the top of the reservoir 14 to maintain both under the same pressure. The valve assembly includes a valve body 21 having (1) a throughway for water formed of a passageway 24 and corrugations 29 on its interior walls and an orifice 23 and (2) a passage therefrom to the tube 41, the outlet of which, like the nozzle 38, is located in an opening 39 in the soleplate 1, the temperature of which is controlled by a link 6 manually operable to be rotated by a member 8 movable over a temperature scale 9. The reservoir 14 is filled from a tube 16 with a funnel 17 having a valve seat member 42 sealingly engaged by a check valve, e.g. a ball 43. A modification comprises a liquid pump chamber, a one-way valve providing liquid flow from the reservoir into it, and from it a second one-way valve communicating with the steam cavity, having a discharge passage terminating in a nozzle, water supply into the steam-flow path being as before. In this construction the fill funnel need not be closed, the pressure-equalizing tube is absent, and the spring on the valve stem is outside and above the fill tube. The reservoir can be located at any point, even externally of the iron body, if desired.
Patent GB-1313591-A (GB)
Title: Acousto-optic devices
IPC: G02F1/11
Filed: 1970-04-23
Abstract: 1313591 Modulating light CHROMATIX Inc 23 April 1970 [1 May 1969] 19497/70 Heading H4F When the k-vectors of an acoustic wave and a plane polarized optical beam passing through an anisotropic medium are collinear, the optical beam will undergo a type of Bragg diffraction which is cumulative in effect only for a narrow band of optical frequencies and non-cumulative by self cancellation for other frequencies. The diffracted narrow waveband portion of the beam is collinear with the undiffracted remainder of the beam but is plane polarized orthogonally thereto, so that by using an output analyser, and by varying the acoustic frequency and thus the wavelength of the diffracted portion, a variable optical filter can be made. Thus in Fig. 1, polarized light 13 enters a LiNbO 3  crystal 12 at the Brewster angle, and a transducer 16 supplies a variable frequency longitudinal acoustic wave to the crystal, which is converted to a shear wave 24 collinear with the optical beam on reflection from a crystal face 21. The transmitted light 14 is analysed at 15. In Fig. 5 (not shown) incoming light is polarized by a Roden prism and enters a LiNbO 3  crystal with end faces normal to the optic axis. The beam is reflected from the remote end face of the crystal, to which the acoustic transducer is attached and the Roden prism deflects the diffracted narrow waveband portion of the reflected beam away from the main optic axis. Other useful materials for the crystal 12 are sapphire and quartz. It is stated that the condition for diffraction in such systems is: k e +k a =k o  where k is the momentum vector and the subscripts e, o and a refer to the input extra-ordinary, output ordinary optical beams, and the acoustic wave respectively.
Patent GB-1373071-A (GB)
Title: Electronic patterning device for knitting machines
IPC: D04B15/66
Filed: 1972-04-27
Abstract: 1373071 Automatic control of knitting machines ELITEX - ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 27 April 1972 [30 April 1971] 19529/72 Heading G3N The rows of a matrix which carries the pattern information for a knitting machine can be read in various ways, e.g. successively, repeatedly, in reverse order, to provide different knitted patterns. The variation in the normal successive scan of the rows by device 4 is caused by transfer switches (8) provided in decoder 7 which can correct the individual lines 9 to one of lines 11, 13, 15. For a normal scan corresponding to one revolution of the needle cylinder each row is read twice by device 6 and the lines 9 are open circuited. If the transfer switch (8) is moved to connect a particular row line 9 to line 11 then circuit 16 stops the scan of reading device 4 when this row is reached and it is read repeatedly. Circuit 14 causes the scan to reverse when it reaches a row where the line 9 is connected to line 13 and it will scan back and forth over these rows. A connection of row line 9 to line 15 activates circuit 12 which causes reading device 4 to be reset and start the scan again when it reaches the respective row. The transfer switches (8) can be inter-locked to the machine movement and control pulses are provided at 19, 21, 24 to ensure the scan is synchronized with the machine.
Patent GB-587248-A (GB)
Title: Improved means for obtaining a fluid-tight seal between two relatively movable members
IPC: F16J15/54
Filed: 1944-10-11
Abstract: 587,248. Stuffing-boxes. ROSS, I. M., and HALL, R. E. Oct. 11, 1944, No. 19597. [Class 122 (v)] [Also in Group XL] The rotary shaft 1 is sealed in the nut 5 by rubber or like rings 9 held in a casing 8, this casing being mounted resiliently in the nut by the sleeve 10. The nut is held to the panel 3 by the gland 2 and packing 6. Specifications 587,249 and 587,250 are referred to.
Patent GB-862628-A (GB)
Title: Improvements in or relating to a toaster
IPC: A47J37/08
Filed: 1959-06-10
Abstract: 862,628. Electric toasters. VALENTE, E. June 10, 1959 [June 11, 1958], No. 19817/59. Class 28 (1). A toaster is provided with thermal insulation 9, Fig. 2, around two sides and an end and surrounded with a spaced housing 10 forming an air gap. The bread is gripped between wire frames 23 attached to pivoted handles 18 which are used to open and close the frames 23 and to insert the frames in the central spaces between the resistance heater wires 2 and to withdraw the bread. A pilot light 7 and time switch 6 and a crumb tray 11 with a withdrawing handle 12 are provided.
Patent GB-1066087-A (GB)
Title: Improvements in and relating to hand-drying apparatus
IPC: A47K10/48
Filed: 1964-05-13
Abstract: 1,066,087. Roll dispensers. WARMEX Ltd. and A. GOLDSTEIN. July 30, 1964 [May 13, 1964], No. 19935/64. Heading A4G. [Also in Division A5] A hand dryer comprises a feed drum 9 which advances a length of paper towel to a position of use and a blower 16 directing streams of warm air to opposite sides of the towel in its position of use, the feed drum and the blower being controlled by a timing circuit operated by a photo-electric cell 20, press button or pedal, and a bin 19 or waste disposal unit being provided for disposal of the towel. The dryer comprises a casing 1 having a removable supply reel 6 of paper towelling, a feed drum 9 having a high friction surface and blowers 16 which direct air through ducts 17 fitted with heaters 18 on to the towelling in its position of use. On interrupting a beam of light between a source 21 and the photo-electric cell 20, associated circuits which include a timing device are energized to cause actuation of the blowers and the heaters and energization of a solenoid (22, Fig. 4) for a predetermined period. When energized, the solenoid raises a lever (23) from a depression (24) in a cam (25) rotatable with the feed drum 9 to free the feed drum for rotation, the lever then actuating a microswitch (26) so that an electric motor is energized to rotate the feed drum. As the feed drum rotates it draws towelling T from the supply reel so that a length of towelling hangs between the air ducts in its position of use. On deenergization of the solenoid the lever (23) falls back into the cam depression (24) when they are next in register to cause opening of the microswitch and de-energization of the electric motor so that the feed drum ceases to rotate. After a predetermined interval the blowers and heaters are de-energized and the lid of a bin 19 disposed beneath the dryer opens under the control of the timing device for receiving the used length of towel which is torn away. In a modification, a wash basin having a sink disposal unit controlled by the timing device may be provided beneath the dryer for disposal of the used towel lengths.
Patent GB-293759-A (GB)
Title: Improvements in heat exchanging apparatus
IPC: F23M20/00
Filed: 1928-07-10
Abstract: 293,759. Leveque, P., (Assignee of Challe, B.). July 11, 1927, [Convention date]. Heating air.-Cast metal plates A, A<1> - . A<4> 4 have fins fitting into slots on an adjacent plate forming channels into which project fins B, B<1>, B<2> and C<1>, C<2> formed on one or both sides of the plates. In the examples shown, the fins B, B<1>, B<2> are straight and might be in contact with combustion products while the fins C<1>, C<2> are curved and the channel may be used for air to be heated. Both. sets of fins may be straight and set parallel or at any angle.
Patent GB-675582-A (GB)
Title: Improvements relating to two-stroke internal combustion engines
IPC: F02B75/02
Filed: 1949-07-29
Abstract: 675,582. Combustion chambers. ITURBE Y BASABE, N. July 29,1949 [May 10, 1949], No. 20023/49. Classes 7(ii) and 7(iii) In a two-stroke engine a projection 7 on the piston 9 enters the mouth 5 of a combustion chamber 4, whereby the air passing around the projection 7 and through passages 12 therein produces turbulence in the chamber 4, the projection having a depression shaped so as to form with the combustion chamber a heart-shaped combustion space. The exhaust valve 1 is situated in the combustion chamber and has a projection which helps to define the heartshape. A semi-circular recess 11 deflects the gases emerging from the combustion chamber after ignition against the cylinder head. The inlet ports 6 are arranged tangentially to produce swirling in the cylinder.
Patent GB-820849-A (GB)
Title: Improvements in or relating to gas reactors
Inventor: OBRECHT ROBERT PAUL
IPC: B01J12/00
Filed: 1957-06-25
Abstract: <PICT:0820849/III/1> A gas phase reactor comprises an outer cylindrical vessel having a first end and an opposite conical end; an inner cylindrical vessel extending axially of the outer vessel from the first end toward but spaced from the conical end to provide a free gas space at the conical end; the inner vessel is spaced from the side walls of the outer vessel to provide an annular passage between the inner and outer vessels, gas passages being provided in the lower portion of the side walls of the inner vessel for the flow of gas from within the inner vessel through the annular passage into the free gas space; an inlet pipe extends axially of the conical end (preferably beyond the gas outlet pipe and level with the wide end of the conical section) to discharge materials through the gas space into the inner vessel; and a gas outlet is provided from the conical end.  Preferably the cross-sectional areas of the inner vessel, the gas passages therethrough, and the annular passage are approximately equal.  A suitable form of reactor is shown in the Figure, in which 16, 17 and 18 are pipes for the passage of chlorine, a material to be chlorinated, and a suitable diluent respectively, 14 and 15 are the inlet and outlet pipes, and 21 is a cylindrical baffle with gas passages in the section 23.  The reactor may be operated in any position if the materials are fed in gaseous form.ALSO:<PICT:0820849/IV (a)/1> A reactor for gas-phase perchlorinations comprises an outer cylindrical vessel having a first end and an opposite conical end; an inner cylindrical vessel extending axially of the outer vessel from the first end toward but spaced from the conical end to provide a free gas space at the conical end; the inner vessel is spaced from the side walls of the outer vessel to provide an annular passage between the inner and outer vessels, gas passages being provided in the lower portion of the side walls of the inner vessel for the flow of gas from within the inner vessel through the annular passage into the free gas space; an inlet pipe extends axially of the conical end (preferably beyond the gas outlet pipe and level with the wide end of the conical section) to discharge materials through the gas space into the inner vessel; and a gas outlet is provided from the conical end. Preferably the cross-sectional areas of the inner vessel, the gas passages therethrough, and the annular passage are approximately equal.  A suitable form of reactor is shown in the Figure, in which 16, 17 and 18 are pipes for the passage of chlorine, a material to be chlorinated, and a suitable diluent respectively, 14 and 15 are the inlet and outlet pipes, and 21 is a cylindrical baffle with gas passages in the section 23.  The reactor may be operated in any position if the materials are fed in gaseous form.  The chlorination of propane to produce CCl4 and C2Cl4, and the chlorination of propylene, propylene dichloride or ethylene dichloride, are referred to.
Patent GB-202099-A (GB)
Abstract: 202,099. Flavel, P. W. June 7, 1922. Atmospheric gas burners; making burners.- A gas burner comprises an annular discharge nozzle f surrounding a central air duct d, cast integral with a wall e of an annular space c to which gaseous mixture ie supplied, preferably tangentially, from a mixing-tube b, the upper edge of the duct d preferably extending beyond the upper edge of the wall e. The mixing-tube b is provided with a gas nipple a, above which is an air-inlet h controlled by a plate j pivoted at k and provided with an adjusting-screw l. When lighting or extinguishing the burner, the plate j is depressed to close the air inlet h. The burner may be provided with one or more additional concentric nozzles, as shown in Fig. 5, a nozzle m being formed by the wall e and a concentric wall n and being supplied with gaseous mixture through a mixing-tube o and passages p. Specification 202,927 is referred to.