baber/WOPTO huggingface dataset:
Patent GB-1183582-A (GB)
Title: A Quick-acting Pipe-Coupling
IPC: F16L37/52
Filed: 1967-04-24
Abstract: 1,183,582. Pipe joints. PERROT-REGNERBAU G.m.b.H. & CO. 24 April, 1967 [30 April, 1966], No. 18717/67. Heading F2G. A quick-release coupling incorporates coupling rings 2, 4 attachable over adjacent ends of pipes 1, 3, the ring 2 having a part-spherical surface and an end surface constituting a shoulder 2<SP>1</SP> formed as an annular recess, and the ring 4 having an end portion to receive within it the smaller diameter end portion of the ring 2, a sealing ring 6 being interposed between the rings. The ring 4 carries externally thereof two bearings 12 disposed diametrically opposite one another and a universal joint ring 5 having two tongues 511 pressed inwards therefrom at positions diametrically opposite one another, the joint ring being arranged to surround the coupling ring 4 with the tongues engaging the bearings so that the joint ring can swivel on the coupling ring. The joint ring carries pivoted thereon at points diametrically opposite one another and displaced 90 degrees circumferentially from the tongues a cranked locking lever 8 and a latch lever 9 each having a hooked end engageable with the annular recess 2<SP>1</SP> of the ring 2. The joint ring 5 may be retained on the coupling ring 4 by means of stop pieces 14 having bent-over ends engaging behind the bearings 12.
Patent GB-656617-A (GB)
Title: Improvements relating to electron guns for cathode ray tubes
Inventor: STANLEY VINCENT ARTHUR
IPC: H01J29/48
Filed: 1948-07-13
Abstract: 656,617. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 13, 1948, No. 18763. [Class 39 (i)] An electron gun comprises a modulating electrode which consists of a film on an insulating surface facing the cathode. A metal sleeve 5 supports the tubular thermionic cathode 2 through the ceramic disc 4 and carries a lip 7 which, with the spacer ring 8, registers a ceramic or mica disc 6 on which is evaporated or sputtered the films 11, 12 forming respectively the modulating electrode and first anode; each film overlaps only its respective terminal contact 13, 14 moulded or inserted in the insulator. A retaining sleeve 9 and a second anode 15 are provided and the anode 12 may alternatively be independently supported by rods. Dimensions of the electrode 11 and insulator 6 are specified.
Patent GB-1077995-A (GB)
Title: Improvements relating to paste for the production of carbon bodies
Inventor: MASON CLIFFORD ROBERT
IPC: C04B35/532
Filed: 1964-05-06
Abstract: A plastic carbonaceous composition is prepared by mixing coarse particles of a carbonaceous material with high softening point binder and then adding fine particles of carbonaceous material and a lower softening point binder.  The latter two materials may be pre-mixed, or added in either order.  The coarse and fine carbonaceous fraction may be obtained by sieving the same initial material, e.g. pitch or petroleum coke, charcoal, coal, or lampblack; or may be different, e.g. coarse petroleum coke and fine pitch coke.  The binder may be coal tar pitch, coal tar, bitumen, or asphalt.  In the example pitches made from the same tar, but having softening points of 143 DEG  and 102 DEG  C., were used. The paste is used to make self-baking or prebaked electrodes.ALSO:A paste for making carbon bodies is prepared by mixing coarse particles of a carbonaceous material with a high softening point binder and then adding fine particles of carbonaceous material and a lower softening point binder. The latter two materials may be premixed, or added in either order.  The coarse and fine carbonaceous fractions may be obtained by sieving the same initial material, e.g. pitch or petroleum coke, charcoal, coal or lampblack; or may be different, e.g. coarse petroleum coke and fine pitch coke.  The binder may be coal tar pitch, coal tar, bitumen or asphalt.  In the example pitches made from the same tar, but having softening points of 143 DEG  and 102 DEG  C., were used. The paste is used to make self-baking or prebaked electrodes.
Patent GB-679073-A (GB)
Title: Improvements in or relating to driving gear for automatic lathes
IPC: B23Q5/00
Filed: 1950-07-27
Abstract: 679,073. Automatic lathes. ARON, E., and BANNING, A. J. April 30, 1951 [July 27, 1950], No. 18831/50. Class 83 (iii). A driving gear for an automatic lathe comprises a reversible electric motor to drive a uni-directional control shaft through a reversing gear train, a control member for the latter being interconnected with a controller for the motor so that a change in direction of the motor is accompanied by a change in setting of the reversing gear train whereby the control shaft continues to rotate in the same direction. A main constant speed driving shaft 12, Fig. 1, rotated by the reversible electric motor through a non-reversible change-speed gear (not shown), carries a sprocket 33 for driving the work spindle of the machine and also a pinion 13 which may be engaged with either of two pinions 19, 20, Fig. 2, on a swinging carrier 18. The latter has a cranked end-portion which swings about a trunnion 16, Fig. 1, on the end of the uni-directional control or back shaft 14. A gear-wheel 11 may be clutched to the control shaft for driving it and is engaged by the pinion 20; lugs 21, 22, Fig. 2, are provided on the carrier 18 to limit the swinging movement with either the gear 19 or gear 20 in mesh with the driving pinion 13. The lug 21 also operates a spring-returned plunger of a controller for reversing the driving motor. Operation of the reversing controller and the gear device is obtained through a rotatable disc 27 carried in a cover-plate 25, the disc having an eccentric groove on its rear face engaged by a pin 23 secured at one end to the swinging carrier.
Patent GB-523144-A (GB)
Title: Improvements in or relating to x-ray installations comprising a grid-controlled switching tube
IPC: H05G1/56
Filed: 1939-06-28
Abstract: 523,144. Control systems for space discharge apparatus. PHILIPS LAMPS, Ltd. June 28, 1939, No. 18839. Convention date, July 1, 1938. [Class 38 (iv)] Thermionic and like control.-In X-ray installations in which the X-ray tube 2 is switched on and off by a grid-controlled tube 3 on one pole, the other pole is simultaneously switched on and off by a " separating " tube 27, having a control electrode 30 the potential of which is dependent on the anode current of the tube 3. As shown, the tube 3 also stabilizes the voltage of the X-ray tube through the operation of a potentiometer, including resistances 6, 7, and an amplifier 4 the grid of which is connected between these resistances, the voltage on the X-ray tube is determined by adjustment of resistance 6. The control electrode 30 is connected to a point on resistance 7, so that, on opening a relay switch 16 removing a bias voltage 19 from the grid of amplifier 4, the current established in the potentiometer by the resulting starting of tube 3 causes the elimination of a bias voltage 31 from the electrode 30 and 'the starting of tube 27. This tube, as shown, is a gas discharge tube with incandescent cathode and has potential bushes connected to a high resistance potentiometer 32 and to prevent any gradual rise in potential of the cathode of the X-ray tube due to this potentiometer a comparatively low resistance 35 connects it to earth.
Patent GB-791921-A (GB)
Title: Improvements relating to electric resistance brazing
Inventor: SHARMAN FREDERICK MARK
IPC: B23K35/02
Filed: 1955-06-29
Abstract: 791,921. Brazing. BRITISH THOMSONHOUSTON CO. Ltd. June 6, 1956 [June 29, 1955] No. 18840/55. Class 83 (4). An electric resistance brazing electrode is laminated over at least a portion of its length from the brazing end, the laminations being resilient transversely of their main surfaces. The laminations may extend the whole length of the electrode and may be clamped or brazed together at the end remote from the brazing end or alternatively a solid member may be slotted to form laminations extending from the brazing end to the other end which is not slotted. An electrode 1 having laminations 2 over part of its length is carried in a tool 4 and is pressed into contact with a workpiece 5. The electrode may be of a nickel-chromium alloy having a specific resistance of 108 microhm per cubic centimetre.
Patent GB-416303-A (GB)
Title: Improvements relating to devices for protecting the eyes against glare
IPC: C10B39/04
Filed: 1934-06-26
Abstract: 416,303. Goggles. KLEINMANN, E., 7, Kufsteiner Strasse, Sch÷neberg, and MENDEL, A., 59, Leibnizstrasse, Charlottenburg, both in Berlin. June 26, 1934, No. 18855. Convention date, June 26, 1933. [Class 97 (i).] A device for protecting the eyes from glare comprises two transparent discs 1 of celluloid or similar material formed with integral hooks 3 bent up from the discs to engage the rims of an ordinary pair of spectacles, the two discs being united by a bow 4 of resilient metal wire secured to the rims 2 of the discs by passing the wire through slits therein or by riveting. The resilient bow 4 may be so curved that when the device is not in use the discs are brought substantially one behind the other.
Patent GB-649845-A (GB)
Title: Improved kinds of pipe plates or tube plates
IPC: F16L5/10
Filed: 1948-07-14
Abstract: 649,845. Pipe plates. WILLIAMS H M. Tuly 14, 1948, No. 18862. [Class 99(i)] A device for concealing an aperture in a floor &c. through which a pipe e 2 extends comprises a frustoconical fitting, e.g. of sheet metal, which resiliently grips the pipe and whose height to base ratio is greater than 1 to 4, the fitting being formed, if desired, from two identical parts having inter-engaging catches 6 and/or stops positioned about its middle. In modifications, (1) resilient material or springs project from the inner surface of the fitting to bear against the pipe, (2) the end 5 is recessed to receive a split ring of rubber or asbestos string, Fig. 5 (not shown), (3) the fitting has spikes which can be embedded in the floor, Figs. 7 and 8 (not shown), or the end 5 is bent inwardly to form a seating for a scaling mastic, Fig. 8 (not shown), and (4) the inwardly bent portion has openings or is notched. Two such fittings may be used to grip a carpet surrounding the pipe, Figs. 9 and 10 (not shown).
Patent GB-624948-A (GB)
Title: Improvements in power plant using elastic fluid turbines
IPC: F02G1/02
Filed: 1947-07-15
Abstract: 624,948. Turbine plant. JOHNSON, J. July 15, 1947, No. 18876. [Class 110(iii)] A hot air turbine power plant comprises a high-pressure turbine, an intermediate pressure turbine and a low-pressure turbine, air compressors driven by the first two turbines and power utilising means driven by the low-pressure turbine together with means for reheating the air between the high and intermediate pressure turbines and between the intermediate and low-pressure turbines. The power plant shown comprises highpressure and intermediate pressure hot air turbines a, e, Fig. 2, driving compressors b, c and f, g respectively, and a low-pressure turbine i driving an alternator k supplying power to the motor l. Air taken in at b<1> is compressed in the compressor b, c, f, g and passed to the heater section n, Fig. 3. The air leaving the heater section n passes to the turbine a, the exhaust of which is reheated in a second section n<1> before passing to the turbine e. The exhaust from the turbine e is further reheated in a third section n<2> of the heater before passing to the turbine i. Two independently fixed oil furnaces o<1>, o<2> are provided to heat the sections n<1>, n<2> and the gases leaving the sections n<1>, n<2> are used to heat the section n. The heater section n is in two parts and around the second part is a bye-pass pipe controlled by a valve to enable the air temperature leaving the section n to be regulated. The exhaust air from the turbine i is supplied as combustion air to the furnaces o<1>, o<2>. This air passes through a cooling jacket p<2> around the heater before it reaches the furnaces o', o<2>. For starting purposes, a diesel generator r' is used to drive an air compressor s which supplies air to a reservoir from which it is supplied to the turbines a, e and i. When the speed has been raised sufficiently, the oil pumps t<1>, t<2> are started up and the burners ignited. When the temperature of the furnaces has been raised to a suitable figure, the air from the' compressors is passed into the heater section n, and the valve u<1> connecting the exhaust of the turbine e to the furnace o<1> partly opened and the valve u<2> connecting the exhaust of the turbine e to the heater section n<2> partly closed. The rate of combustion in the furnaces o<1>, 0<2> is then slowly increased until the working temperatures are reached. The valve u<1> is then used to control the amount of air pass-- ing to the power turbine i and thus control the output of the plant.
Patent GB-1021705-A (GB)
Title: Improvements in circuit protection systems
Inventor: BACON KENNETH FRANK
IPC: H02H7/06
Filed: 1964-05-06
Abstract: 1, 021, 705. Automatic voltage control. MULLARD Ltd. Dec. 3, 1964 [May 6, 1964], No. 18943/64. Heading G3R. [Also in Division H2] A protective arrangement for a generator comprises an analogue of the regulator circuit of the generator, the analogue circuit and the regulator circuit being connected in parallel and each supplying an input to a comparator which produces an output signal if the input signals differ by more than a predetermined amount, the output signal being arranged to trip the generator or to operate fault indication apparatus. As shown, the output of a generator 1 is compared with a reference voltage source 4 in a comparator 5, the resulting error signal being applied over amplifiers 6, 7 to regulate the current in the generator field 2. The error signal is also applied, by way of a current sensing device 21, to a comparator 20, which also receives an input from a circuit 14, 15, 16, 17 which is an analogue of the regulator circuit 4, 5, 6, 7 and which is connected in parallel with the regulator circuit. If a fault should develop in the regulator circuit the inputs to comparator 20 will differ, and the resulting output from 20 will trip the generator. The protective circuit may be duplicated, and the advantages of the system when used in association with generators operating in parallel are discussed in the specification. The system may be used in conjunction with the usual over-voltage, under-voltage, and earth-fault protection circuits.
Patent GB-183130-A (GB)
Title: Improvements in or relating to the reception and amplification of radiotelegraphic signals
IPC: H04B1/16
Filed: 1922-07-12
Abstract: 183,130. Ges. f³r Drahtlose Telegraphie. July 13, 1921, [Convention date]. Thermionic and oscillation generators, amplifiers, detectors; unmodulated waves, audible reception of; relaying or repeating systems.-Incoming signals are caused to initiate the generation of local oscillations by a valve the plate circuit of which is tuned to a frequency different from and independently of the signals. The local oscillations may be of higher frequency than the signals, or they may be sufficiently low to be heard directly in the phones. Both the incoming signals and the locally-generated oscillations may be amplified in separate stages so as to avoid the self-excitation difficulties arising from the use of two many amplifying steps in direct succession. The controlled wave oscillations may be fed to an aerial and the signals re-transmitted on the new frequency. As shown in Fig. 1, the incoming signals are fed to a circuit 2 comprising rectifiers 3 so that quantitative differences of potential are applied at the points 4, 5. These are in the grid-filament path of an auxiliary valve 6 inserted in the feed circuit of an oscillationgenerator 7. A battery 9 normally maintains the grid potential of the valve 6 at such a value that an infinite resistance is interposed between the oscillator 7 and a source of direct current 8. The grid-voltage variations applied by the rectified signals controls the periods during which the valve 7 generates oscillations. The frequency is determined by a tuned circuit 10, which may contain the phones 11, or be coupled to a retransmitting-aerial. If high-frequency oscillations are generated a detector is included in the output circuit. In a modified form, the control valve 6 is dispensed with, and the incoming energy is applied direct to the grid of the generating-valve.
Patent GB-308533-A (GB)
Title: Improvements in and relating to revolving protectors for the heels of boots and shoes
IPC: A43B21/433
Filed: 1928-07-04
Abstract: 308,533. Swarbrick, G. July 4, 1928. Protectors, construction of and securing.- Revoluble protectors of rubber or other resilient material for the heels of boots and shoes comprise a disc 6, Fig. 1, or a ring 16, Fig. 5, which is secured to the heel by a ring 1, Fig. 1, or disc 11, Fig. 5, with which it dovetails and around which it can move. The ring 1 and disc 11 have perforations with washers for attachment by nails 3, 13 respectively, the disc 6 in the former case being provided with corresponding perforations to permit of attachment. The disc 6 and ring 16 are provided with one or more stiffening rings 9, 17, respectively, of steel wire and are recessed on their surfaces to prevent slipping.
Patent GB-419047-A (GB)
Title: Device for detecting the presence of foreign gases or suspensions in air or other gas
IPC: G01N1/00
Filed: 1934-06-30
Abstract: <PICT:0419047/III/1> <PICT:0419047/III/2> A device for testing gases comprises a doubleacting piston pump contrived to draw the gas in a steady stream over a reaction medium.  The pump preferably has a hollow piston serving as a receiver.  One embodiment, Fig. 2, has a hollow piston 17 having non-return valves 18, 22 on its end faces and guided in the cylinder 1 by cup washers 15, 16 also acting as non-return valves. The piston is rigidly connected to the absorption chamber b by a pipe 9 passing through a slot in the cylinder, and it is reciprocated by moving the chamber b up and down.  Movement of the piston towards either end of the cylinder expels the gas from that end past the cup washer and induces in the other end a vacuum which is filled up by outflow from the interior of the piston.  In a modification the cup washers are omitted and ports covered by outwardly-opening valves are provided at each end of the cylinder. Another embodiment, Fig. 3, has a differential piston 29 fitted with a cup washer 27 and working in a cylinder 25 provided with an outlet valve 34.  The interior 29<1> of the piston communicates with the space 31 by a port 30.  The absorption chamber 36 is mounted on the upper end of the piston and a cylinder f-attached to it slides over the cylinder and serves as a handle and a guide for the piston.
Patent GB-176308-A (GB)
Title: Improvements in indicating gauges
IPC: G01L19/08
Filed: 1921-07-19
Abstract: 176,308. Fortuna - Werke Spezialmaschinenfabrik Ges. March 3, 1921, [Convention date]. No Patent granted (Sealing fee not paid). Indicating ; mounting and supporting indicating apparatus.- Comprises a construction of needle base and knife-edge mechanism for indicating gauges of the type in which the indicating needle rests on knife-edges. The needle base or block is composed of three angle-pieces a, b, c so assembled as to form two parallel notches resting respectively on a fixed knife-edge d and on a knife-edge carried by a rod f moved by the gauge anvil e. By moving the parts b, c relatively to the part a, the distance between the notches and consequently the transmission ratio is varied. The base or block is pulled down against the knife-edges by two springs and the movement of the anvil is limited by two adjusting-screws h, i.
Patent GB-1119638-A (GB)
Title: Lactone stabilization
Inventor: KLOOTWIJK ARIE
IPC: C08G63/08
Filed: 1967-04-27
Abstract: A stabilized lactone composition comprises (a) an a -substituted b -lactone of from 4-10 carbon atoms of formula <FORM:1119638/C2/1> wherein R is alkyl and R1 is hydrogen or alkyl and (b) from 0.001% mole-0.5% mole based on the total composition of an addition compound of boron trihalide and an organic non-ionizable Lewis base suitably an organic compound of formula (R11)3E wherein E is nitrogen, phosphorus, arsenic or antimony and each R11 is hydrogen or a C1- 20 hydrocarbon group with the proviso that two R11 together may form a divalent hydrocarbon moiety of from 4-20 C. atoms, an ether, aldehyde or ketone.  An example describes compositions containing a ,a -dimethyl-b -propiolactone and one of the following; BF3(C6H5)3P, BF3 (C6H5)3N, BF3.(C2H5)2O.
Patent GB-531823-A (GB)
Title: Improvements in and relating to the sealing of molybdenum members into glass
IPC: C03C27/02
Filed: 1939-07-04
Abstract: 531,823. Glass manufacture. PHILIPS LAMPS, Ltd. July 4, 1939, No. 19509. Convention date, July 7, 1938. [Class 56] [Also in Group XXXVI] A glass suitable for sealing with molybdenum preferably has a softening temperature higher than 550‹C and may contain 15-23 per cent. of aluminium oxide. In an example the glass contains 55 per cent. of SiO 2 , 15 of B 2 O 3 , 20 of Al 2 O 3 , of MgO, 2 of ZnO and 5 of Na 2 O. Other glasses referred to contain 66 per cent. of SiO 2 , 22 of Al 2 O 3  and 12 of CaO or 72 of SiO 2 , 10 of Al 20  3 , 10 of CaO and 8 of B 2 O 3 .
Patent GB-1337640-A (GB)
Title: Process for producing stretched shaped article
IPC: B29C67/00
Filed: 1971-06-09
Abstract: 1337640 Stretching acrylic bodies MITSUBISHI RAYON CO Ltd 9 June 1971 [30 July 1970] 19569/71 Headings B5B and B5A An unstretched shaped body, e.g. a film, bottle or cup, comprising a copolymer of 55-85% acrylonitrile with 45-15% of another copolymerizable monomer, at least half of which is a C 1-4  alkyl acrylate, is stretched by a ratio of at least 1À5 in at least one direction at 65-160‹ C. in the substantial absence of any solvent for the copolymer. Other comonomers listed are methyl methacrylate, vinyl or vinylidene chloride, methacrylonitrile, methylene glutaronitrile, and vinyl acetate. In examples, films are stretched by up to 4 x mono- or biaxially by a flat or tubular process. The films may be made by melt-extrusion, preferably below 240‹ C., and the final product may be heat treated above or below 120‹ C. depending on the final dimensional stability or shrinkage potential required.
Patent GB-677006-A (GB)
Title: Improvements relating to hydraulic governors for internal combustion prime movers
Inventor: IFIELD RICHARD JOSEPH
IPC: F02D1/12
Filed: 1949-07-26
Abstract: 677,006. Gas turbine plant. LUCAS, Ltd., J. July 7, 1950 [July 26, 1949], No. 19593/49. Class 110(iii) [Also in Group XXIX] A hydraulic governing system for an internal combustion prime mover, e.g. a gas turbine, comprises a governor pump q driven by the prime mover, a spring-loaded diaphragm i subjected on opposite sides to the pressures before and after a pair of throttles n, r in series, and a hinged leakoff valve f actuated by the diaphragm i and controlling a servo-piston a which adjusts a swashplate g of a fuel injection pump e supplying burners h. The throttle n is adjusted by hand and the throttle r by a spring-loaded diaphragm t subjected to the pressures before and after the throttle r. A restriction y controls the rate of movement of the throttle r consequent upon adjustment of the throttle n. It is stated that the governor pressure may be derived from the pump e instead of from the separate pump q, and also that the servo-piston may control a fuel throttle valve instead of the pump. Furtther, the diaphragms i, t may be replaced by pistons. Specification 577,016, [Group XXIX], is referred to.