baber/WOPTO huggingface dataset:
Patent GB-522477-A (GB)
Title: Fixed plate variable capacity condenser
IPC: H03D1/28
Filed: 1938-11-12
Abstract: 522,477. Variable condensers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., BRETT, G. F., and LEVIN, N. Nov. 12, 1938, No. 32978. [Class 37] [Also in Group XL] A variable condenser comprises two spaced electrodes the capacity between them being varied by altering the intensity of a beam of electrons directed between the electrodes. The fixed plates C1 C2 may be within an evacuated envelope E the. beam passing between a cathode and anode R and traversing slots in a control electrode G an accelerator electrode A and a screen-suppressor electrode S. As shown the condenser is used in conjunction with a tuned circuit comprising condenser C and inductance L. The condenser may be used to compensate for variations in capacity in transmitting valves on warming up.
Patent GB-1196272-A (GB)
Title: High Voltage Planar Semiconductor Devices
IPC: H01L29/00
Filed: 1967-07-18
Abstract: 1,196,272. Semi-conductor devices. UNITRODE CORP. 18 July, 1967 [18 July. 1966], No. 33002/67. Heading H1K. The voltage breakdown characteristics of a junction 39 in a semi-conductor device are improved by providing one of the regions defining the junction 39 with a relatively shallow portion 32b surrounded by a deeper portion 32a. The deeper portion 32a is generally rounded in profile and is preferably produced by a relatively deep diffusion process, sharp corners being avoided. The deeper portion 32a may contain a higher impurity concentration than the shallow portion 32b. The PNPN switch shown is formed in an N-type Si wafer by various diffusion stages involving the use of oxide masks shaped by photo-resist techniques. Boron and phosphorus are used as the dopants in regions 31 and 37 respectively. A groove is etched as shown in the lower wafer surface, to facilitate the joining up of the two opposed diffusion fronts which define the annular portion of the region 31. After the stage illustrated has been reached, electrodes are provided in the usual way. In an alternative embodiment an annular groove (43), Fig. 10 (not shown), is etched in the upper surface, and the deeper portion 32a, Fig. 8, of the dualdepth region is diffused therethrough, either simultaneously with or in addition to the diffusion of the shallow portion 32b. The manufacture of three-layer transistors and diodes is also referred to.
Patent GB-1442506-A (GB)
Title: Production of yellow output radiation gallium phosphide lumin escence diodes
IPC: H01L21/208
Filed: 1974-07-26
Abstract: 1442506 Electroluminescence SIEMENS AG 26 July 1974 [27 July 1973] 33093/74 Heading C4S [Also in Division H1] A luminescent diode for producing a yellow output comprises a first GaP layer epitaxially deposited on a substrate and containing Te, O and N as dopants, and a second epitaxially deposited GaP layer doped with Zn which is then diffused into the first layer. The concentration of the dopants is given and, in particular, the N concentration is 10<SP>18</SP>-10<SP>20</SP> cm.<SP>-3</SP> for producing a yellow output.
Patent GB-846086-A (GB)
Title: Improvements in or relating to arrangements for testing electricity meters
Inventor: LOVEGROVE HENRY JOSEPH
IPC: G01R35/04
Filed: 1955-11-18
Abstract: 846,086. Testing electricity supply meters. SANGAMO WESTON Ltd. Oct. 17, 1956 [Nov. 18, 1955], No. 33095/55. Class 40(3). Apparatus for the comparative testing of electricity supply meters comprises, means for deriving a polyphase electric supply current having a frequency which is always in constant proportion to the speed of a master meter, means for deriving a single train of electric pulses whose frequency is in constant proportion to the speed of a meter under test, a synchronous polyphase electric motor arranged to be energized by said polyphase current and speed comparison means having a first member driven by said synchronous electric motor and a second member actuated by said pulses, said first and second members co-operating to produce an indication of the relative speeds of the two meters. In Fig. 1, a master meter I has a disc 2 formed with a plurality of radial slots 3, Fig. 2, through which light beams from two sources 4, 5 pass to photocells 6, 7. The beams pass through slots A, B in limbs 8, 9 of a masking device the limb 8 being angularly adjustable so that the trains of pulses from the cells 6, 7 may have a 90 degrees phase displacement. The trains of pulses are separately amplified by amplifiers 11, 12 to operate relays 14, 13 respectively which commutated D.C. supply 15 to produce a biphase series of DC pulses which are fed to a synchronous hysteresis motor 16 which drives a rotary printing platen 24 in a speed comparing device, having a one turn helical ridge 25. The meter 17, which is under test, has a disc 18, on the underside of which is painted a black mark which once in each revolution of the disc 18 interrupts a beam of light from a source 19 reflected by the disc 18 on to a photo-cell 20. The resulting pulses from the cell 20 are amplified and fed to a pulse circuit 23 which operates a printing platen 33 above the rotary platen 24. A perforated tape 28 is fed through the space between the platens 24, 33 and is advanced by one perforation for each pulse from the cell 20 by a stepping ratchet 38. A printing ribbon 34 is arranged beneath the tape 28 and the arrangement is such that a mark is printed on the tape by each operation of the platen 33, and the percentage error of the test meter is given by the deviation of the line of printed marks from the axis of progression of the tape 28. Specifications 710,351 and 724,093 are referred to.
Patent GB-466711-A (GB)
Title: A new or improved clothes airer
IPC: A47B61/00
Filed: 1935-11-29
Abstract: 466,711. Clothes airer. HAYBALL, C. W. Nov. 29, 1935, No. 33129. [Class 52 (v)] A clothes airer comprises a number of clothes receiving rails K mounted in flat blocks J which are rotatably secured on a member M. The member M is slidably secured on a vertical member H by means of a metal member I which is secured to the member M and has its ends bent inwards to engage grooves in the member H. The member H is provided with clips P whereby the clothes airer can be secured to a hot water pipe. The member M is raised and lowered by means of a rope G passing over a pulley B and its downward movement is limited by a stop N. The rails K may be notched to prevent clothes hangers from sliding off.
Patent GB-824894-A (GB)
Title: Self-dispensing tooth-brush
IPC: A46B11/00
Filed: 1957-10-23
Abstract: 824,894. Brushes. HORITZ, K., and ELSTON-EVANS, N. Oct. 23, 1957, No. 33157/57. Class 19. A tooth brush consists of an integral bristle-carrying head A and stem D through a bore A2 in which extends a flexible tube Al that enters into the mouth of a collapsable tube of paste housed in a resilient handle B.
Patent GB-1312848-A (GB)
Title: Method for granulating a glass batch
IPC: C03C1/02
Filed: 1970-07-09
Abstract: 1312848 Preparing a glass batch W EIRICH and G EIRICH 9 July 1970 [23 July 1969] 33410/70 Heading C1M A granulated glass batch comprising sand, lime, and sodium hydroxide or a mixture of sodium hydroxide and sodium carbonate is prepared by mixing a sodium hydroxide melt with the other ingredients of the glass batch, the water content of glass batch being from 2% to 5% by weight and granulating the batch. Preferably the sodium hydroxide melt contains up to 15% by weight water and is mixed with the other ingredients at a temperature of from 180‹ to 300‹ C. The mixing is carried out in a mixer having an eccentrically arranged tool system. The mixture may be granulated in the mixer or removed from the mixer for granulating, e.g. by using a coarse-meshed shaking screen arranged above a cooling surface. The sodium hydroxide melt may be prepared by adding solid caustic soda and water vapour to the other ingredients or by mixing solid caustic soda with heated sand.
Patent GB-1139022-A (GB)
Title: Improvements in or relating to aminohalophenylthioethers
Inventor: RENZ JANY
IPC: C07C/
Filed: 1966-04-05
Abstract: 1,139,022. Aminohalophenylthioethers. SANDOZ Ltd. 5 April, 1966 [3 May, 1965; 1 Dec., 1965], No. 33413/68. Divided out of 1,139,021. Heading C2C. Novel compounds of formula wherein R 1  is C 1-6  alkyl or C 7-9  aralkyl and each R 2  is H, Cl or Br, at least one of R 2  being halogen, is prepared by S-alkyl or S-aralkylation of a compound of formula followed by reduction. Compounds of the last formula above are prepared by action of sodium sulphide and hydroxide on a compound of formula which is itself prepared by action of potassium iodide and sodium pyrosulphite or phosphorous acid on a compound of formula prepared by action of chlorosulphonic acid on a compound of formula
Patent GB-1147685-A (GB)
Title: Dispensing valves
Inventor: HOGG CHRISTOPHER ALAN
IPC: G01F11/00
Filed: 1966-07-26
Abstract: 1,147,685. Delivering measured quantities of fluid. BRITISH OXYGEN CO. Ltd. 26 July, 1967 [26 July, 1966], No. 33451/66. Heading B8N. [Also in Division B3] A valve for dispensing measured quantities of fluid, e.g. gas, from a source of fluid under pressure comprises an actuator 16, 19 adapted, when operated to open a one-way inlet valve 10, 11 and close an outlet passage 12 leading from a chamber 9, the actuator being maintained in this position by means of spring- loaded balls 22 acting on a detent surface 15 until the pressure builds up in the chamber so as to move the actuator and thereby open the outlet passage. The chamber 9 is formed in a housing 8 which may be screwed on to a holder 2 containing a bulb 1 of pressurized gas a needle 5 being adapted to pierce the bulb. The amount of gas dispersed can be varied by altering the size of the chamber 9 or by changing the shape of the detent surface 15 or the loading of the springs 21, 23. In an application of the valve the dispensed gas is used to eject a cork from a wine bottle, the gas being introduced into the bottle by means of a hollow needle which pierces the cork.
Patent GB-1081321-A (GB)
Title: Improvements in projectile fuses
IPC: F42C11/02
Filed: 1964-08-17
Abstract: 1,081,321. Projectile fuzes. DYNAMIT NOBEL A.G. Aug. 17, 1964 [Aug. 17, 1963], No. 33538/64. Heading F3A. The fuze, upon firing of a projectile, has been placed in armed condition as shown by setback of a plunger 19. The resistance offered by a deformable washer to a thread on the plunger prevents premature arming. This has released a ball detent 18 from a rotor 10 which has rotated under a spring 13 so that an electric fuze 7 is aligned adjacent a detonator 8. A circuit through the fuze 8 is established by parts comprising a casing of the fuze, a fuze pin 7<SP>1</SP>, plunger 20, 21, spring 22, contact plate 2, a piezo-electric element 5, and an inertia body 3. On impact with a target, the p.e. element 5 is compressed and generates the detonating impulse. In another embodiment, the inertia body (3a), Fig. 3 (not shown), is enclosed in an insulating lining 6a. Upon firing, this body sets back against p.e. element 5 which engages a contact plate 2a. The parts constitute a capacitor in which a charge is thus set up. On impact a second inertia body 26 is forced against the contact plate 2a to release the detonating impulse.
Patent GB-1485221-A (GB)
Title: Hydraulic control system
IPC: F16D48/02
Filed: 1975-08-12
Abstract: 1485221 Clutch control; hydraulic brakes BORG-WARNER CORP 12 Aug 1975 [30 Aug 1974] 33566/75 Headings F2L and F2F An hydraulic control system which controls an hydraulic motor 16 for engaging a clutch or brake 14 comprises an accumulator 12 connected by a conduit 28A to the supply conduit 28 for the motor 16, the accumulator also having a conduit 30 connecting it with the conduit 28 and being designed so that conduits 28A and 30 are in communication therethrough in either of the extreme positions of its piston 50. In operation, a manually operated valve 22 supplies pressure to conduit 28 and the accumulator 12 is initially ineffective due to a counterbore 90 allowing ports 68 and 66 to be in communication. When pressure has built up sufficiently the piston 50 rises against its spring 76 and against pressure on differential lands 70, 72 from conduit 30 to soften clutch or brake engagement. When the piston has attained the position shown in Fig. 1 the ports 66 and 68 are again connected together so that a one-way restrictor 34 in conduit 28 is by-passed, this allowing a flow sufficient to compensate for leakage. The pressure in conduit 30 depends on vehicle speed and engine torque and consequently so does the pressure on the differential lands 70, 72 and the rate of operation of the accumulator. The clutch or brake may be in an automatic transmission of the planetary type.
Patent GB-1259860-A (GB)
Title: A device for tensioning and closing endless bands or tracks
Inventor: BRAUN WILLY
IPC: F16G3/00
Filed: 1969-07-03
Abstract: 1,259,860. Tensioning endless tracks, etc. W. BRAUN. 3 July, 1969 [3 July, 1968], No. 33592/69. Heading F2G.  A device for bringing together two free ends of a band or a track 5 comprises a tensioning unit to draw the two free ends together through the intermediary of a flexible pull member 36, e.g., a wire rope, running over tensioning pulleys 38 movable relatively to the unit to tension the rope, etc. The tensioning unit may be power or manually operated. As shown, the tensioning unit is manually operated and is secured to a plate 5 of an endless track by base plate and hooks 3. The tensioning unit comprises a ram with an outer cylinder 11 and an inner cylinder 12 acting as a piston. A spring 17 extends through the inner cylinder 12 and pulls it to its retracted position when the pressure in the outer cylinder 11 is released by operating a valve under the control of a knob 47. Pressure liquid from a vacuum-free reservoir constituted by a plastics bellows 20 is pumped into the outer cylinder 11 by means of a pump block 23 through non-return valves 27, 28 by operating a hand lever 30 which can be arrested by a catch 35. The axial movement of the inner cylinder 12 caused by pressure liquid moves the tensioning pulleys 38 away from the unit, and pulls the free end of the track through the wire rope 36 engaging eye hooks 39, 40, which are temporarily secured to the free end. The device can be used to assist in opening an endless track by relieving the pressure on a coupling pin which can be pulled out to disengage the free ends of the track.
Patent GB-174015-A (GB)
Title: Improved steering device for ships and the like
IPC: B63H25/38
Filed: 1920-07-07
Abstract: 174,015. Flettner, A. July 7, 1920. addition, to 147,024. Rudders.-The axis of the main rudder It described in the parent Specification is placed so that alone the rudder is unbalanced but forms with the auxiliary rudder 2t a balanced combination.
Patent GB-361101-A (GB)
Title: An improved heel protector cap for wear inside shoes
IPC: A43B3/16
Filed: 1930-11-08
Abstract: 361,101. Stocking heel protectors. THEUSNER, (geb. RECTENWALD), M., 12A, Fichtestrasse, Steglitz, Berlin. Nov. 8, 1930, No. 33718. [Class 17 (ii).] A stocking-heel protector for wear inside shoes comprises a heel cap extending around the back c and sides b of the heel and preferably in one piece, and connected to a bottom plate a by a strip e of leather or elastic material. The parts a, b, c are preferably of celluloid moulded to shape, and the upper edges d of the parts b, c of the cap are curved outwards to engage the edge of the shoe.
Patent GB-642444-A (GB)
Title: Improvements in or relating to the manufacture of vitreous envelopes
IPC: H01J5/24
Filed: 1947-12-22
Abstract: 642,444. Welding glass STANDARD TELEPHONES & CABLES, Ltd. Dec. 22, 1947, No. 33798. Convention date, April 23, 1945. [Class 56] In welding together the unequal flanges of two glass cups, such as the bulb and base of an electron discharge tube, that with the larger flange is mounted vertically upon the other and an induction-heated internally tapered graphite &c. ring is placed around and'bears against the flanges to fuse them. As shown, the coil 1 for heating the graphite ring 5 is located outside the bell-jar 8 which has an inlet and outlet for inert gas; on heating the ring 5 by its own weight presses the slightly larger flange of the bulb 2 on to that of the base 3 and finally passes completely over the seal and falls to the bottom. The Specification as open to inspection under Sect. 91 comprises also an arrangement wherein the rims of a bulb and a re-entrant base to be sealed thereto rest in a groove in the top face of a graphite or graphited cast iron induction-heated ring (the glass running into this groove on heating). The ring 5 may be replaced by a two-section mould. This subject-matter does not appear in the Specification as accepted.
Patent GB-429682-A (GB)
Title: Improved means for regulating the supply of fuel and/or other fluids to internal combustion engines
IPC: F02M69/00
Filed: 1933-12-02
Abstract: 429,682. Regulating. SWAN, A., GRIFFITH, A. A., and HELMORE, W., Royal Aircraft Establishment, Farnborough, Hampshire. Dec. 2, 1933, No. 33858. [Class 7 (vi)] For regulating the supply of fuel or other fluids to be mixed with the air supply, the metering-valve for such fuel &c. is controlled in accordance with the induction-pipe pressure, and if desired also with atmospheric pressure, and the pressure difference across the metering- valve is controlled in accordance with the engine speed, or the position of the air throttle, or both. The Figure shows one form in which the induction-pipe pressure is communicated by a pipe 2 to capsules 1 which are connected to evacuated capsules 3, and the whole attached to a lever 4 carrying the metering-valve 5. The flow of fuel &c. through this valve from a pipe 13 is controlled by a valve 9 attached to diaphragm 8, which is connected by a spring 10 and rod 11 to the air throttle, or to a centrifugal governor 12, or both. In a modification for regulating the supply of two fluids, one of the evacuated capsules 3 is replaced by an atmospheric one, and one of the fluid supplies is controlled by a diaphragm-actuated valve similar to the valve 9, and the other by a valve connected to two diaphragms, one of which is connected with the air throttle and the other is subjected to the pressure difference of a centrifugal pump driven by the engine. In a third form, the diaphragm controlling the flow of fluid communicates on one side with the suction side of a centrifugal pump supplying the fluid, and on the other side with the delivery side of the metering-valve, and is also connected to the air throttle. Shut-off valves may be provided for arresting the flow of fluid when the engine stops. Where liquids are to be metered, floats or sinkers are connected to the capsules.
Patent GB-647547-A (GB)
Title: Improvements in or relating to the chlorination of organic compounds
IPC: C07C17/02
Filed: 1947-12-22
Abstract: Liquid organic compounds which are insoluble or only slightly soluble in water or aqueous solutions are chlorinated with gaseous chlorine in a process in which water or an aqueous solution is led into the layer of organic liquid during the reaction.  The organic liquid may be aliphatic or aromatic and specifically may be liquid paraffin, benzene and homologues, terpenes, dioxane, chlorobenzene, toluene, or phenol; they may be mixed, e.g. with an inert solvent.  The chlorination may be either additive of substitutive, e.g. benzene may give hexachlorocyclohexane or hexachlorobenzene.  In the case of phenol or dioxan, an aqueous solution, e.g. of calcium chloride, should be used.  Three apparatuses are described in which liquids either lighter or heavier than water may be chlorinated, with particular reference to the preparation of benzene hexachloride.  The chlorine is led into the lower layer, whether aqueous or organic, and some additional water is preferably caused to flow round the end of the chloric supply tube to prevent it blocking.  The water may be slightly alkaline, e.g. as produced by passing it through calcium hydroxide.
Patent GB-609742-A (GB)
Title: Fuel feeding device
IPC: F27D99/00
Filed: 1945-12-14
Abstract: 609,742. Delivering materials from hoppers. RUETZ, H. Dec. 14, 1945, No. 33949. Convention date, July 18, 1939. [Class 78 (i)] [Also in Group XII] A device for feeding fuel to ceramic furnaces comprises a feeding plate 2 (Fig. 2) and driving pawl 4 which acts on the interior undersurface of the wheel whilst pivoting around the vertical centre axis of the fuel container. Fig. 2. Rotary feeding plate 2, which feeds fuel step-by-step from superjacent container 1 to a scraper (not shown) so that the fuel falls into a furnace, is formed with ratchet teeth 3 which are driven by pawl 4, which pawl is pivoted around shaft 14 and is formed integral with external arm 5. Fig. 1. The latter arm 5 is connected by bolt 19 to rod 21 which carries spring 26 and is reciprocated by power arm 32 through the medium of lever 30 pivoted at 31, arm 28 and crank lever 23 pivoted at 27. Arm 28 is adjustable in length at 29; the length of throw may be varied by the positioning of this arm 28 in notches 29a in lever 30; and the notches are arranged in a circle of centre 29 so that adjustment of notch does not affect the position of the pawl. Stop 34 on the container coacts with stop 33 on lever 30 to determine 'the positions of the pawl at the beginning of the stroke. Fig. 4. The pawl may take the shape of arm 4 pivoted to projection 6 fixed on arm 5 and held by spring 8 connected to projection 7 also fixed on arm 5 so as to work in the teeth of ratchet 3; or (Fig. 6) it may work by frictional contact of arm 38 held by spring 41 against the smooth non-toothed inner surface of the driving disc 2. Fig. 7. Several fuel feeding devices may be coupled together by a bar 36 connected to each lever 30 so as to be driven simultaneously by power arm 32. Sealing action (Fig. 2). Lever 5 is provided with cover-plate 11 so as to cover the opening 10 in the container through which lever 5 passes. Also rib 3 of plate 2 which presses against annular asbestos ring 17 acts as an additional seal between the inside and the outside.
Patent GB-1345663-A (GB)
Title: Roof hatch
IPC: E05C17/30
Filed: 1972-07-20
Abstract: 1345663 Roof hatch; latches WASCO PRODUCTS INC 20 July 1972 [24 Sept 1971] 33976/72 Headings E2A and E2M A roof hatch assembly comprises a cover 12 hinged to a raised surround 10 and biassed by torsion springs 16, 18 to an open position, with hydraulic shock absorbers 42R, 42L pivotally connected to the cover and surround to damp opening forces; a bar 52R, 52L being pivoted to the cover, overlying the piston of each shock absorber in the closed position, Fig. 2, and riding over the piston as the cover opens to engage the end of the piston and lock the cover open. Each bar 52 is pivoted to the same point as the piston rod 50 and comprises a length of angle iron which drops over the piston rod in the open position. A reaction pad (e.g. 54L Fig. 3, not shown) is provided at the end of each cylinder to bear the load of the bar. Latching arrangements 34, 36 maintain the cover closed until released by fusible link 38, manually operated means 40, or electrical means (not shown). (For Figures see next page)
Patent GB-1081809-A (GB)
Title: Transductor-controlled current supply systems
IPC: G05F1/32
Filed: 1966-07-28
Abstract: 1,081,809. Rectifying. SIEMENS-SCHUCKERTWERKE A.G. July 28, 1966 [July 28, 1965], No. 34045/66. Heading H2F. A tranductor controlled rectifier circuit has a capacitor C 2  connected across the A.C. terminals of the rectifier bridge between the rectifier bridge and the transductor. This improves the stability of operation if the load presents a high back e.m.f. to the rectifier. The load may be an electrostatic precipitator, shown as a capacitor C 1 , or a battery.