baber/WOPTO huggingface dataset:
Patent GB-1100306-A (GB)
Title: Improvements in and relating to tools for changing needles for taking liquid, and in particular radio-active liquid samples
IPC: G01N1/20
Filed: 1965-04-13
Abstract: 1,100,306. Handling radioactive material. COMMISSARIAT A L'ENERGIE ATOMIQUE. 13 April, 1965 [23 April, 1964], No. 15840/65. Heading B4Q. A tool for removing for replacement purposes a long hollow flexible needle A used for taking samples of radio-active liquid, comprises a tubular body 1, 2, 3 enclosing a rod 4 having jaws 9 at its lower end. The needle A normally rests with its head B in a support C and is removed by lowering the tool so that the jaws 9 come below a flange b on the head and then raising the rod 4 by a knob 5. The jaws close due to the engagement of ribs 13 with the interior of body part 1 and the needle head is lifted into a cylindrical casing R. The flexible part of the needle which may be several metres long is wound up within the casing R by four winding pegs 28 (Figs. 6-8, not shown) mounted on a rotary plate 29 which is advanced to the left from the Fig. 2 position by sliding a shaft 30 controlled by a knob 31, the jaws 9 being released before commencement of the winding by a further upward movement of the knob 5. After the needle has been wound by rotating the shaft 30 by the knob 31, the pegs 28 are retracted by moving the shaft to its original position as shown. The casing R is ejected by first removing a cover-plate 27 and then advancing the end 45 of a screw 42 by rotating a knob 44, the screw end abutting a removable cover-plate 26 situated adjacent one end face of the casing.
Patent GB-296895-A (GB)
Title: Improvements in and connected with chronometer escapements
IPC: G04B15/06
Filed: 1928-02-22
Abstract: 296,895. Winter, T. A. Feb. 22, 1928. Escapements. - Consists of a horizontally disposed pivoted detent 1 adapted to engage and lock with the teeth 4 of the escape wheel 5, a balance 10 the plane of which is set at 90‹ to that of the escape wheel, and a pin 9 on the balance to engage with and unlock the detent 1 from the escape wheel, the free end of the detent being provided with a two-armed lever the shorter arm 6 of which is connected to a light spring 7 anchored to the top plate 2, while the long arm 8 extends into the path of the pin 9. A pin 12 limits the movement of the detent 1. As the balance swings, the pin 9 forces the lever 6, 8 and detent backwardly as a whole against the spring 7 until a tooth 4 is cleared allowing the wheel 5 to move forward, the freed tooth 4 catching up the pin 9 and giving an impulse to the balance while the detent 1 and lever 6, 8 are returned by the spring 7 to engage the nose 3 with the next tooth 4. On the return swing of the balance the pin 9 merely brushes by the arm 8 rocking the lever 6, 8.
Patent GB-665217-A (GB)
Title: Improvements in or relating to gas burners for use in cremating or incinerating furnaces
IPC: F23G5/12
Filed: 1949-06-15
Abstract: 665,217. Gas burners. ASKAM, J. F. June 14, 1950 [June 15, 1949], No. 15928/49. Class 75(i) In a gas burner for use in cremating or incinerating furnaces, of the kind having a primary air jet through which air under pressure is passed for inducing gas supplied through a surrounding restricted annular passage, the gas-air mixture passing to a nozzle or outlet for combustion, a secondary air tube 11 passes through the primary air jet 8 to the nozzle 12 to supply secondary air under pressure to the centre of the flame. Air under pressure is supplied to a chamber 6 and passes therefrom to the jet 8 and through holes 10 into the tube 11. Gas is supplied to an annular passage 5 through an inlet 4 and is induced into the air discharged through the restricted outlet 9 of the air jet 8. The burner may be associated with a combustion chamber having a frusto-conical inlet wall whereby the noise of the flame is reduced.
Patent GB-564971-A (GB)
Title: Improvements in or relating to casings for electrical condensers or other electricaldevices
IPC: H01G4/224
Filed: 1943-09-28
Abstract: 564,971. Condensers. DUBILIER CONDENSER CO. (1925), Ltd. (Dubilier, W.). Sept. 28, 1943, No. 15942. [Class 37] A condenser A or other electrical component is mounted within a metal casing B, the open end of which is inserted in the cupped end of an insulating container D. The condenser terminal ends G<1>, G<2> are connected to a stud C and to the metal casing end G, respectively, the former extending through a composite rubber-artificial resin-rubber washer E and the end D<2> of the insulating container to a connecting lug F secured on the outer side of a rubber washer E<3>, the whole resulting in a long creepage path between the containers.
Patent GB-1155809-A (GB)
Title: Additive for Filler-Containing, Elastic-Cross-Linkable Organopolysiloxanes
Inventor: SCHNURRBUSCH KARL
IPC: C07F7/08
Filed: 1968-04-03
Abstract: 1,155,809. Diphenyl-silane-diol. FARBENFABRIKEN BAYER A.G. 3 April, 1968 [19 April, 1967], No. 15995/68. Headings C3S and C3T. Finely divided diphenyl-silane-diol, suitable as an additive in filler-containing, convertible organopolysiloxanes, is prepared by pouring diphenyl-dichlorosilane over the rotor of an intensive stirrer running at a speed of at least 1000 r.p.m. into at least ten times the weight thereof of a weakly alkaline solution of ammonia or an alkali metal carbonate or bicarbonate at a temperature below 40 C., filtering off the precipitated powder, washing and drying, and grinding it to a particle size of less than 50 microns while maintaining a temperature of below 40 C. The powder may be mixed with finely divided silica to aid grinding and with dry ice as cooling agent. The additive may be obtained by mixing the diphenyl-silane-diol powder within six hours of grinding with an equal amount of organopolysiloxane convertible to an elastomer. The mixture may be stored and used with fillercontaining siloxanes, e.g. a composition comprising a mixed methyl-phenyl-vinyl polysiloxane, finely divided silica, quartz, titanium dioxide, polymethylhydrogen siloxane and vinyl triethoxy silane. After kneading at 165-170 C., the mixture is cooled and mixed with 0À9% 1,4 - di - (tert - butyl - peroxyisopropyl) benzene and cross-linked in steam for cable insulation.
Patent GB-933611-A (GB)
Title: Improvements relating to addressing machines
IPC: B41L45/02
Filed: 1960-05-06
Abstract: 933,611. Addressing machines; stencilling machines. R. E. HICKS. Aug. 2, 1961 [May 6, 1960], No. 16034/60. Class 100 (2). An addressing - machine comprises a hopper 3 for accommodating a stack of addressed stencil cards, a feeding member 4 for displacing the lowest card of the stack along a track 5 and between an inking roller 6 and a paper to be addressed, and manually-operated drive means connected to the feed member and to the inking roller for reciprocating the former and rotating the latter. Rotation of a hand crank 11 causes oscillation of a shaft 13 and an arm 12 mounted thereon. A link 14 is pivotally secured to the feeding member 4 and engages a lug 15 on the arm 12 by means of a notch 14b. Thus, as the arm 12 oscillates the member 4 is reciprocated and feeds cards from the magazine. The link 14 may be pivoted in an anticlockwise direction until a further notch 14a engages a lug 16 on the machine frame, in which case rotation of the crank 11 causes only rotation of the inking roller. Inking apparatus.-A felt-covered roller 8 is inked manually and ink therefrom is transferred by a roller 9 having a knurled surface to the segmental inking roller 6 which cooperates with a segmental impression roller 7. When the drive to the feeding member has been disconnected as described above, a stencil plate which has passed between the rollers 6, 7 may be pushed manually back along the track 5 between the reduced diameter parts of the rollers 6, 7 for printing a second time. Reference has been directed by the Comptroller to Specification 874,815.
Patent GB-1261936-A (GB)
Title: Process for forming a layer of photoconductive material on a substrate for use in electrophotography
IPC: C09D5/44
Filed: 1969-03-27
Abstract: 1,261,936. Electrophotographic plate. RANK XEROX Ltd. 27 March, 1969 [28 March, 1968], No. 16142/69. Heading H1K. [Also in Division C7] A photoconductive layer is formed on a substrate electrophoretically, by preparing a mixture of particulate inorganic photoconductor and a resin, suspending the mixture in a volatile non-polar insulating organic liquid, which is capable of dissolving at least part of the resin and applying an electric field to the liquid so as to cause the suspended particles to move electrophoretically to the surface of the substrate and form a compact particulate photoconductive layer which comprises the photoconductor and at least part of the resin, the amount of resin being sufficiently low that the photoconductive layer is discontinuous and will not form a continuous layer upon exposure to heat or a solvent. The photoconductor may be an oxide, sulphide, sulpho-selenide, selenide or telluride of Zn, Cd, Pb or Hg whilst the resin may be methyl phenyl polysiloxane, styrenated alkyd resin, acrylated alkyd resin, epoxy resin, methacrylic resin or copoly vinyl chloride-acetate. The insulating liquid may be toluene, cyclohexane, butyl acetate, xylene, petroleum, or a halogenated hydrocarbon or mixtures thereof. The support is preferably a polyethylene terephthalate sheet coated with Al. The resin is absorbed on or coats the photoconductor particles. The suspension may be formed by milling or ultrasonically. Additives such as cobalt naphthenate, bromophenol blue or fluorescein may be incorporated.
Patent GB-1493633-A (GB)
Title: Monitoring circuitry for a skid control system
IPC: G05D13/00
Filed: 1975-04-18
Abstract: 1493633 Antiskid braking systems EATON CORP 18 April 1975 [10 May 1974] 16143/75 Heading F2F [Also in Division G1] In an antiskid braking system, for a vehicle having at least first and second spaced apart, independently rotatable wheels provided with separate sensors, and having brake control means including a solenoid valve there is provided a monitoring arrangement in which a D.C. test current is applied to the valve solenoid to develop thereacross a voltage insufficient to energize the coil and a circuit disables the valve driver circuit in dependence upon a change of said voltage when there is an erroneous operating characteristic. A time delay is provided by an RC circuit before the driver circuit is disabled, the disabling being achieved by blowing a fuse. A short circuit condition of the valve solenoid coil is determined by comparing the test voltage with a reference voltage and a disabling signal is produced when the reference voltage exceeds the test voltage, the open circuit condition being determined by measuring the potential at a junction with the coil and a resistance connected in series therewith.
Patent GB-651838-A (GB)
Title: Improvements in or relating to valve mixer circuits
IPC: G01R23/00
Filed: 1947-06-18
Abstract: 651,838. Frequency analysers ; phase difference and power factor measurements ; power meters. EL-SAID, M. A. H. June 18, 1947, No. 16145. [Class 37] [Also in Group XL (c)] A multiplicative mixer comprises one valve operating within a family of parallel exponential characteristics coupled to a second valve having a logarithmic characteristic so that the change in output of the first valve is proportional to the product of the separate inputs to the valves. As shown, Fig. 1, one input v1 is applied between earth and the anode of a valve P1 operating in the retardation field region. In this state, the grid volts anode current characteristics are parallel exponential curves and the anode volts-anode current characteristic is linear. The second input v2 is applied across a valve P2 having a logarithmic charactsristic. The anode of P2 is connected to the cathode of P1 which is earthed through a coupling resistor CLR. A D.C. output is taken across the anode load resistance R of P1. This circuit may be used in the measuring head of a watt meter, Fig. 6 (not shown), by using the voltage drop across a known resistance due to the total current as one input and feeding the output to a valve voltmeter. In a power factor meter, Fig. 8 (not shown), the applied voltage and the voltage drop due to the total current are rectified by diodes each enclosed in a common envelope with one valve of a wattmeter circuit. The outputs of the diodes and of the wattmeter are fed to separate logarithmic amplifiers, and the outputs so combined that the final output is proportional to the logarithm of the power factor. The phase angle between two oscillalations of different frequencies f1, f2 is measured by using one of the oscillations say f1 to synchronize a saw-tooth oscillator of frequency f equal to the highest common factor off and f2, selecting the harmonic off equal to f2, and applying it to a power factor meter together with f2. An A.C. output may be obtained from the suppressor or screen grid of the exponential valve. This embodiment may be used in a beat frequency oscillator or in a waveanalyser. A wave under test is applied to the mixer together with a local oscillation, and the amplitude of the beat frequency produced between the local oscillation and one of the component frequencies of the wave under test, which is equal to the product of the amplitudes of the oscillation and the component frequency, is measured. In a modification, Fig. 11, a third valve P<SP>1</SP>1 is connected in effective parallel with the exponential valve P1. The valve P<SP>1</SP>1 is not affected by the valve P2, but only by the input voltage v1. This arrangement compensates for non-linearity of the anode volts/current characteristic of P1, and gives a balanced output.
Patent GB-1348022-A (GB)
Title: Collapsible container
IPC: B65D/
Filed: 1971-05-21
Abstract: 1348022 Collapsible containers R T BLANCHARD 21 May 1971 [4 June 1970] 16168/71 Heading B8P A collapsible and stackable container 10 may comprise end panels 12, 14 which have J-shaped channels (26, 28, Fig. 3) secured thereto for co-operating with L-shaped hook portions 46, 48, 46<SP>1</SP>, 48<SP>1</SP> on the side walls 16, 18 and which are provided with L-shaped members 38, 43 for slidably receiving the container top 20 and bottom 22. The hook portions may be integral with the side walls or be secured thereto. The channels 26, 28, and hook portions 46, 48, 46<SP>1</SP>, 48<SP>1</SP> may be formed of extruded metal or plastics material. The side walls 16, 18 may comprise spaced slats (50-56, Figs. 7, 8) whose hook portions are provided with ribs (60, Fig. 8) for co-operating with grooves (58) in the end panel channels to support the slats. Ties may be used to secure the top 20 in place.
Patent GB-252557-A (GB)
Title: Improvements relating to vacuum type fuel feed systems for internal combustion engines
IPC: F02M37/02
Filed: 1925-06-23
Abstract: 252,557. Higginson, J. June 23, 1925. Vacuum apparatus. -The connection between a suction chamber and the induction pipe is automatically throttled when the degree of vacuum exceeds a predetermined amount. The fitting is connected to the induction pipe at a and to the suction chamber at band includes a piston open to atmosphere on one side and to vacuum on the other having a rod c tapered at the end and entering the passage c<1> in which the rod is a loose fit. A cap h has a fibre disc g which allows air to enter under high vacuum conditions. A ring i retains the piston if the cap is removed.
Patent GB-1500956-A (GB)
Title: Dredger installation
IPC: E02F3/94
Filed: 1975-04-18
Abstract: 1500956 Dredging SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES ALSTHOM 18 April 1975 [24 April 1974] 16238/75 Heading E1F A dredger installation comprises a collecting device (6) attached to a flexible dredging pipe 5, a silo 4 for storing and decanting the dredged materials, a closeable overflow pipe 20 leading from the top of the silo to the bottom of a well 21 which is kept at atmospheric pressure, a lift pump 24 for discharging the dredged materials from the silo 4 to a ship (11), and a dredging pump 22 for discharging the overflow collected in the well 21 to a site (15) on the sea bed, the dredging pump being operable so as to maintain a fluid level in the well such that the difference in pressure between the level and the surface automatically causes a flow at a predetermined rate in the dredging pipe 5. The overflow pipe 20 has a flow measuring device for controlling the pump 22.
Patent GB-515434-A (GB)
Title: Improvements in or relating to brakes for trailers of vehicles
IPC: B60T15/18
Filed: 1938-06-01
Abstract: 515,434. Fluid-pressure brakes. BOSCH GES., R. [formerly BOSCH AKT.-GES., R.]. June 1, 1938, No. 16343. Convention date, June 5, 1937. [Class 103 (i)] In a fluid-pressure brake for trailer vehicles, which is normally operated' from the towing vehicle by a control valve on the trailer, influenced by the pressure in a brake pipe and also by that in the trailer brake cylinder and reservoir, an auxiliary valve for releasing and applying the brake on an uncoupled trailer is disposed in the connecting pipe between the cylinder and the control valve. The control valve comprises pistons 12, 13 and a wall 14 defining chambers 15 ... 18 connected respectively to the atmosphere at 19, to the brake pipe 21, leading to the main valve on the tractor, to the reservoir by pipe 22 and to the brake cylinder by pipe 24. The pistons are secured to a tubular rod 11. The reservoir is supplied from the pipe 21 through chambers 16, 17 and a collar 26 which acts as a non-return'valve. Reduction of the pressure in the pipe 21 effects downward movement of the pistons so that a valve 31 is unseated by the tube 11 to supply the cylinder through chambers 27, 18, the pistons and valve returning to the position shown when equilibrium of the pressures is re-established. Subsequent raising of the brake pipe pressure causes the pistons to move upwards so that the lower end of the tube 11 is uncovered and the brake cylinder exhausts through it and the passage 19. The auxiliary valve comprises a plug cock 35 operated by a lever 36 and cable 43. In the normal position shown the passage 40 connects the two parts of the pipe 24. The brake will thus be applied when the vehicle with the pipe 21 is uncoupled and it can be released by turning the cock to connect the lower part of the pipe 24 to an exhause port 39, by the passage 41, the upper part of the pipe being then closed..Reapplication can be effected by turning the cock to the position shown. The pistons 12, 13 may be loaded by a spring 44, so that the supply valve 31 is kept open when the pipe 21 and chamber 16 are at atmospheric pressure.
Patent GB-630489-A (GB)
Title: Stabilising sulphur-containing organic compounds against oxidation and setting compositions produced from such stabilised compounds
IPC: C08K3/26
Filed: 1946-05-30
Abstract: A method of improving the stability to oxidation by air of an anhydrous low molecular weight thioplast having terminal mercaptan groups comprises acidifying it with a non-oxidizing mineral acid. The low molecular weight thioplasts to be stabilized may be made by the process of Specification 600,644 or by carrying to an intermediate stage the usual condensation between the halogenated acetal and an excess of alkali metal polysulphide, stopping the reaction by cooling, and treating the product with alkali to form the alkali metal mercaptide of the disulphide thioplast.  On acidification, the terminal mercaptide groups are changed to mercaptan groups.  When mixed with zinc oxide the stabilized product forms a cold-setting composition, the rate of setting depending on the amount of acid present.  Setting may be accelerated by adding water, or by immersing films of the composition in water.  In the examples, a liquid degraded thioplast obtained by heating a thioplast with diphenyl guanidine in an atmosphere of nitrogen is employed.  It is stabilized with sulphuric acid.  The acidified liquid mixed with zinc oxide in the ratio 4 : 3, set in 1 hour to an elastic solid which adhered to an aluminium sheet.
Patent GB-353602-A (GB)
Title: Improvements in high tension air break electric switches
IPC: H01H31/28
Filed: 1930-05-28
Abstract: 353,602. Air-break switches. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London.-(Assignees of Koppitz, C. G. ; of Railway & Industrial Engineering Co., Greensburg, Pennsylvania, U.S.A.) May 28, 1930, No. 16479. Convention date, May 29, 1929. [Class 38 (v).] A high-tension air-break switch has a fixed contact jaw 6, 7 formed with parallel contacting surfaces and a movable contact member 12 carried pivotally at 11 as a pivoted switch arm 10, the movable contact 12 being formed with a contacting head 13 adapted to be forced between the fixed contacting surfaces. The members 10, 12 are joined by a spring 11 and their relative motion is limited by stops 16, 17 so as to form a toggle. During the closure of the switch, which is effected by engaging an operating rod with an apertured lug 14 of the contact member 12 and exerting upward pressure thereon, the movable contact arm is first brought to the dotted position in which the contact head engages the surface of the block 6 which is formed of soft metal. Further movement of the operating brings the parts into the position shown in which the members 10, 12 are moved into alignment and the contact head 13 is wedged firmly between the surface of the block 6 and of the U-shaped member 7, the latter being formed of hard springy metal such as stainless steel or spring steel adapted to exert a considerable pressure on the contact head. The latter is formed of relatively hard metal such as phosphor bronze and its combined rotary and sliding movement provides a cleaning action on the contacts. In a modification, Fig. 3 (not shown), the movable contact member may be carried on and operated by a swinging insulator. Specification 237,600, [Class 38 (v), Electric switches &c.], is referred to.
Patent GB-554203-A (GB)
Title: Improvements in and relating to the production of artificial filaments, yarns or threads
IPC: D01D5/20
Filed: 1941-12-22
Abstract: 554,203. Stretching yarns &c. BRITISH NYLON SPINNERS, Ltd., LOASBY, G., and POWNALL., L. Dec. 22, 1941, No. 16484. [Class 120 (iii)] [Also in Group IV] Artificial filaments, yarns, or threads of varying denier are produced by passing a continuous thread 1 from an extrusion device or a wound package through the nip of two rollers 3, 4 rotating at equal peripheral speeds in opposite directions one or both of which having one or more slots 5 and thence to a winding or winding and twisting device rotating at a greater speed than the nip rollers, in some cases a further roller being interposed in front of the winding or winding and twisting device. When, owing to the slots, the thread is not nipped it is not stretched to the same extent as when it is nipped, whereby variations of denier are produced. The process may be applied to nylon threads. Specifications 461,236 and 461,237, [both in Group IV], are referred to.