baber/WOPTO huggingface dataset:
Patent GB-687978-A (GB)
Title: An improved table, trolley or article of furniture
IPC: A47B9/00
Filed: 1950-11-04
Abstract: 687,978. Multi-deck tables. FAIRBAIRN, T. M. Nov. 5, 1951 [Nov. 4, 1950], No. 26988/50. Class 52(iii) In a multi-deck table or trolley with three vertically superposed supporting surfaces 9, 3, 7, the intermediate one 3 is fixed to the side pillars or supports 4, while the upper and lower surfaces are vertically displaceable to collapse against the intermediate surface, being movable in slideways, and interconnected for simultaneous movement to counterpoise each other.
Patent GB-676347-A (GB)
Title: Improvements in and relating to electromagnetic scanning systems
IPC: H03K4/28
Filed: 1950-11-06
Abstract: 676,347. Saw-tooth generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 6, 1950 [Nov. 10, 1949], No. 27064/50. Class 40 (vi). A D.C. current is passed from an auxiliary circuit through the secondary winding of the output transformer of a saw-tooth wave generator in order that the transformer core operates at the centre of its B.H. curve. The circuit shown is of the type in which energy stored in the deflection coils 3 discharges through the diode 17 in order to produce the first part of the scanning wave. The transformer has a step-down ratio to equalize the mean primary and secondary currents so that the H.T. for the driver valve may be augmented by the energy stored in capacitor 12. Due to the inequality of the number of the primary and secondary turns the transformer core is magnetized but this is offset by passing a D.C. current from the supply 25 through the secondary coil and scanning coils to a load represented by the arrow and by an adjustable shunt resistor 26. The load may be the audio or video output valve and may alternatively be connected in series with the amplitude controlling inductor 20 across the whole of the secondary coil (Fig. 1, not shown). In this case a capacitor may be connected in series with the scanning coils to block the D.C. and the use of auxiliary centering arrangements is avoided. An inductor 11 and capacitors 10 and 12 so shape the ripple voltage across capacitor 10 that the voltage waveform across capacitor 12 is such that the delay of current through the diode is approximately linear and reaches zero at the centre of the trace.
Patent GB-1433392-A (GB)
Title: Piston pump unit and pump housing
IPC: B01L3/02
Filed: 1973-06-06
Abstract: 1433392 Reciprocating pumps L K B PRODUKTER A B 6 June 1973 [9 June 1972] 27083/73 Heading F1A A pump for transferring measured quantities of liquid samples, e.g. blood or wine, comprises a cylinder 2 or 3 within which a piston with a rod 6 is reciprocated to pump liquid between an inlet 4 and an outlet 5, the cylinder 2 or 3 being removably mounted in a housing 1 having driving means 7 for the piston-rod 6 and digital means 8 for setting the stroke of the piston, volume markings being provided on the cylinder corresponding with the digital means 8, so that cylinders of different capacities with appropriate volume markings may be interchangeably used in the housing 1. The cylinders are supported by brackets 9 and secured by screws 10. Stroke-setting buttons 8 may be replaced by bores into one of which a button is inserted to select the pump stroke.
Patent GB-743887-A (GB)
Title: Improvements in and relating to control circuits for high frequency electronic oscillators
Inventor: CANT WILLIAM
IPC: H05B6/04
Filed: 1953-10-02
Abstract: 743,887. Automatic control systems for H.F. furnaces. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 23, 1954 [Oct. 2, 1953], No. 27097/53. Class 38 (4). In a high-frequency furnace in which the oscillator is supplied with high tension from grid controlled rectifiers, the bias on which is determined by the conductivity of a thermionic diode as in Specification 670,498, the diode filament is energized in accordance with the magnitude of the high tension current drawn by the oscillator so as to keep the output power substantially constant despite changes in output loading. The rectifiers V1, V2, V3 supplying the oscillator (not shown) have their grids connected to a star-connected secondary T1S of the main supply transformer (not shown), the star point having a D.C. bias tapped off potential divider VR1 via a cathode follower V4. The bias is varied by a diode V5 shunting the input ; and the heater of this diode is connected across a shunt, Fig. 1 (not shown), in the H.T. line between the rectifiers and the oscillator.
Patent GB-1399117-A (GB)
Title: Means and techniques useful in stressing cable
IPC: G01N3/06
Filed: 1972-06-09
Abstract: 1399117 Determining stress/strain characteristics M J DYKMANS 9 June 1972 [16 June 1971] 27137/72 HeadingGlN An arrangement for deriving a stress/elongation curve of a cable which may be used, for example, for pre-stressing concrete, comprises a hydraulically controlled piston 26 which engages by means of gripping elements 32, 32A a cable 10 emerging from the concrete 12, the stress being detected by a load cell 30 whose output controls a pen recorder, and the paper 48 being directly driven by linkage 64 so that its movement is proportional to the elongation. As shown a second gripping means may be provided at 20 so that when the piston reaches the end of its travel the cable may be held whilst the piston returns to commence a second run to continue the stressing. Such repeated operations may be manually or automatically controlled. In a modification Fig.5 (not shown), the load cell 30 is disposed immediately above the stand 22, and the elongation measurement is controlled by a connection directly to the cable and not to the piston.
Patent GB-1312420-A (GB)
Title: Voltage regulator for a brushless alternator
IPC: H02J7/24
Filed: 1971-04-19
Abstract: 1312420 Automatic voltage control MOTOROLA Inc 19 April 1971 [13 May 1970 26 May 1970] 27172/71 Heading G3R [Also in Division H1] A voltage regulator for a brushless alternator, has a stationary primary winding 114a of a transformer 114 fed by an oscillator 110 which is controlled by a voltage sensing circuit 112 connected to the stator output 126 of the alternator, the rotatable secondary winding 114b of the transformer supplying the rotor excitation voltage. A plurality of resistors 154 to 157 and a short circuit connection 160, are connected to a switch board 159 and provide the setting for the voltage regulator, thermistor 168 providing temperature compensation. In oscillation transistors 116, 117 alternately conduct until interrupted by the conduction of transistor 144 or 145, the lengths of the periods of such interruption being determined by the load requirements of the alternator, at maximum load producing a continuous output. In an alternative embodiment Fig. 2, (not shown), the feedback for the oscillator is provided by a saturable transformer (51).
Patent GB-260623-A (GB)
Title: Manufacture of intermediate products for the dyestuff industry
Filed: 1926-10-30
Abstract: 260,623. Soc. of Chemical Industry in Basle. Oct. 31, 1925, [Convention date]. Samples furnished. Halogenated naphthylthioglycollic halides are obtained by treating the naphthylthioglycollic halides with halogen or an agent yielding halogen. According to an example, 1-chlor-2- naphthylthioglycollic chloride is made by treating 2-naphthylthioglycollic acid with phosphorus trichloride in chlorbenzene to obtain the acid chloride and then further treating with sulphuryl chloride in presence of ferric chloride. Light should be excluded during the operation.
Patent GB-836511-A (GB)
Title: Improvements relating to vehicle suspensions
Inventor: MARUHN HERBERT
IPC: B60G13/18
Filed: 1958-08-25
Abstract: 836,511. Road vehicle spring suspensions. DAIMLER-BENZ A. G. Aug. 25, 1958, No. 27228/58. Class 108(2) Main suspension springs 4, 5, act between road wheel carriers 2a, 3a, and an intermediate member 6. The main sprung part 7 of the vehicle is mounted on the member 6 by springs 8. Shock absorbers 9, 10, are disposed directly between the part 7 and the carriers 2a, 3a. In a modification (Fig. 1, not shown), the wheel carriers 2a, 3a, are replaced by a single through axle.
Patent GB-840130-A (GB)
Title: Oxidation of organic compounds
Inventor: O'NEILL WILLIAM ALEXANDER
IPC: C07C51/265
Filed: 1957-08-29
Abstract: A process for producing aromatic carboxylic acids substituted in at least one position on the aromatic nucleus with a tertiary alkyl group comprises oxidizing a polyalkyl substituted aromatic hydrocarbon in which at least one substituent is a tertiary alkyl group and at least one substituent a non-tertiary alkyl group in the liquid phase by means of molecular oxygen in the conjoint presence of a heavy metal oxidation catalyst and bromine in an organic acid medium.  An example describes the oxidation of 5-tertiary-butyl-m-xylene to 5-tertiary-butyl-isophthalic acid in acetic acid in presence of cobalt bromide.  The process of Specification 804,612 is disclaimed.  Specification 833,438 also is referred to.
Patent GB-886639-A (GB)
Title: Improvements in rotary slide valves
IPC: F16K3/08
Filed: 1959-08-10
Abstract: 886,639. Valves. HAENISCH, L. Aug. 10, 1959 [Aug. 8, 1958], No. 27258/59. Class 135. A rotary slide valve for the control of fluids, comprises a casing 1 having a through passage with nozzle outlets at its ends and opposed seating discs 5 tack-welded therein. The discs 5 in plan form are divided into an even number of alternate open and closed sector portions co-operable with a similar number of alternately arranged openings 20 and independently mounted closure plates 10 in a rotary plate holder 2 formed with a worm wheel segment 3 rotatable by a worm 4 from outside the casing. The closure plates 10 formed with pegs 12 are mounted in pairs in recesses 9, one facing each disc 5, with their pegs abutting each other in a bore connecting the recesses. To permit of assembly of the valve parts, the casing is formed with a socket 17 closed by a removable sealing cap 18 and the plate holder 2 is split along its horizontal diameter and held together by screws (not shown). Slight clearance exists between hard wearing surfaces 11 and 7 on the closure plates and seating discs respectively to allow for heat expansion.
Patent GB-368798-A (GB)
Title: Improvements in basic refractory bricks or other articles
IPC: C04B35/03
Filed: 1930-09-13
Abstract: Dolomite (which may or may not have been burned) is caused to react with substances (preferably natural rocks) capable of retarding hydration of the finished article to give a material which is then moulded with a non-aqueous liquid binder yielding little or no fixed carbon, and burnt.  In a preferred form, dolomite is lightly burnt, mixed with substances to prevent hydration such as kaolin and labradorite, mixed with water and burnt as rough bricks.  The burnt material is then crushed, mixed with the binder, e.g. oil, moulded and burnt.  The first burning may be greater than indicated above or even omitted. Specification 197,791, [Class 22, Cements &c.], is referred to.
Patent GB-675028-A (GB)
Title: Self-locking nuts
IPC: F16B39/284
Filed: 1949-10-25
Abstract: 675,028. Making lock nuts. ENGSTROM, H. O. Oct. 25, 1949 [Oct. 29, 1948], No. 27436/49. Addition to 655,456. Classes 83 (ii) and 83 (iv). [Also in Group XXV] Lock nuts of the kind described in the parent Specification have the tongues 5 tapering towards the free ends and provided with an unthreaded portion 7. The nuts are made from slugs cut from round wire and the first step is to square the ends and make them concave at 9, Fig. 6. The blanks are then upset and chamfered. Upsetting to hexagonal shape follows accompanied by the formation of a recess 13, Fig. 10, the walls having a taper 14 of 5 degrees and a countersink 15. The blank so formed, is placed in a hexagonal recess in a die 17, Fig. 13, carried by the anvil 18 of a cold-heading press, the head 22 of which carries combined perforating and shearing dies in which six notching blades 24 are angularly spaced about the shank of a punch 20. After the nut is punched the blades cut the tongues from the wall of the recess 13 and bend inwards onto the punch. The nut is stripped from the punch on the return stroke by a plate 26, is then tapped, and the tongues are again bent inwards to position the threaded ends beyond the normal diameter. The nuts may be made from blanks punched from sheet of thickness equal to the required depth of nut.
Patent GB-832055-A (GB)
Title: Stabilized degreasing solvent
IPC: C23G5/028
Filed: 1958-08-27
Abstract: A degreasing composition stabilized against decomposition by metals comprises (a) methyl chloroform, containing (b) 1 : 4-dioxane, and (c) nitromethane, the amounts of (b) and (c) being preferably 2-10% and 0.01-7.5% by volume respectively.ALSO:Methyl chloroform is stabilized against decomposition, particularly by metals, by the incorporation of 1 : 4-dioxane and nitromethane, preferably in proportions of 2-10% and 0.01-7.5% by volume respectively.
Patent GB-856491-A (GB)
Title: Helicopter
IPC: B64C27/54
Filed: 1958-08-27
Abstract: 856,491. Helicopters. UNITED AIRCRAFT CORPORATION. Aug. 27, 1958 [Feb. 24, 1958], No. 27459/58. Class 4. A helicopter main rotor comprises hinge means for each blade such that as the blade advances and flaps upwardly, the blade lags, the axis of the hinge being at an acute angle to the plane of blade rotation, the hinge being located outboard from the rotor axis at a distance given by I cos<SP>2</SP>α/Mxc, where I is the moment of inertia of the blade about its hinge, α is the angle between the hinge line and the rotor axis, M is the blade weight, and xc is the distance from the hinge line to the centre of gravity of the blade, and comprises means connecting adjacent blades so that as one blade advances and lags, the other blade leads. Fig. 2 is an elevation of a two bladed rotor, the root 78 of each blade 32 being mounted by pitch change bearing 30 to a fork 28 forming a pivot with an inclined pin 34 and an arm 24 on the drive shaft 14. A pin 50 journalled in arm 24 is rigid with arms 46, 48 supporting counterweights 52, 54, which should have a natural frequency of oscillation equal to that of the blade, and should be in static balance with the blade. Pulleys 40 rigid with fork 28 and 44 rigid with the counterweights are drivingly connected by a crossed cable 42 so that leading movements of the blade result in lagging movements of the weights. Arm 48 drives a pulley connected by a crossed cable to a similar pulley associated with the other blade, so that as one blade leads, the other lags. The arms 24 of the two blades may be integral and pivoted to the drive shaft about an axis, perpendicular to that of the blades. Cyclic and collective pitch control movements are effected by reciprocating rods 16 (see also Fig .5) shown for one blade, each connected to a bell crank lever 60 pivoted to arm 24 by pivot 64. A rod 68 is connected to lever 60 and supported by a radius arm 72 pivoted to arm 24 by a pivot 70 coaxial with pivot 64. Rod 68 is connected by link 74 to a horn 76 on the blade root 78, by a pivot located on the axis of pin 34, so that lag/lead movements do not affect the pitch by interaction with the pilots' pitch control linkage system. The forward speed at which the retreating blade stalls is stated to be increased.
Patent GB-1464883-A (GB)
Title: Wire-connector
IPC: H01R4/24
Filed: 1974-06-20
Abstract: 1464883 Wire connectors MINNESOTA MINING & MFG CO 20 June 1974 [21 June 1973] 27502/74 Heading H2E A wire connector of the type described in Specification 1,394,332, is provided with a ridged surface so that it may be closed by conventional pliers contacting ridges 35, 36, 37 or by parallel jaw pliers contacting ridges 37 and 38 (Fig. 10, not shown). As claimed the connector comprises a contact element (Fig. 8, not shown) slidably retained in an insulating body, the body having an upper 14 and a lower 15 part hinged 16 along their back edges and a cover 13 also hinged 17 with the body for fitting beneath the lower part and across the free front edges of both parts, each part having two channels in their opposing faces (Figs. 6 and 7, not shown), the lower part having a flat base defining a first plane, the upper part having a top surface defining a pair of planes intersecting at a plate above said channels, the one of said planes extending toward the free edge of the part making an acute angle with the first plane.
Patent GB-203927-A (GB)
Title: Improvements in or applicable to machines for straining paper-pulp and the like
IPC: D21D5/06
Filed: 1922-10-12
Abstract: 203,927. Watford Engineering Works, Ltd., and Paramor, J. Oct. 12, 1922. Rotary strainers.-Leakage around the drum trunks of pulp strainers is prevented by means of flexible diaphragms g, fixed to the pulp vat at their outer edges and having their inner edges fixed to straps f. The straps are supported by rods f<1> and springs f<2> from pivoted saddle-arms a, which extend over the drum trunks and prevent the drum from being lifted by the liquid around it. Between the straps f and the drum trunks liners h are inserted. The liners may have one end secured to the saddle-bar, the other end trailing, or both ends may be fixed to a block i, which rests on the drum trunk and fills the V-space between the drum trunk and the liner. The straps may be of rubber and the liners h of rubber with canvas insertion or of raw hide felt or canvas. The saddle-arms a rest on the drum trunks by me.ans. of rollers c and are held down by springs e.
Patent GB-315629-A (GB)
Title: Apparatus for cooling superheated steam
IPC: F22G5/12
Filed: 1928-09-27
Abstract: 315,629. Scheinemann, F., and Seiffert & Co., Akt.-Ges., F. Sept. 27, 1928. Gascs, treating with liquids. - To cool superheated steam by spraying water into it, the steam and water spray are passed through and mixed between a number of finely perforated partitions d in a chamber b. Steam from the inlet a and water spray from the perforated ring-shaped pipe c flow downwards through the outer parts of the partitions, around the lower end of a central pipe f and upwards through the central parts of the partitions to the outlet g. Excess water is led off through a pipe h.
Patent GB-253859-A (GB)
Title: A process for forming radio sensitive surfaces out of radio sensitive crystals
IPC: H01L29/02
Filed: 1925-11-04
Abstract: 253,859. International Processes, Ltd., (Assignees of Growald, R.). June 22,. 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 253,476. Crystal and like detectors.-A modification of the method of forming a sensitive surface described in the parent Specification wherein a number of small crystals forming the sensitive surfaces are held in a cup, comprises the provision of a single layer of small crystals mounted by conducting cement upon fabric, paper or metal foil. When mounted on fabric or paper, the fabric &c. is permeated by the cement in order to secure conductivity. The crystal foil or fabric may be formed into any desired shape and mounted upon cylindrical or spherical surfaces.
Patent GB-1282213-A (GB)
Title: Improved vehicle seat suspension mechanism
Inventor: TABOR PAUL CARLYLE
IPC: B60N2/52
Filed: 1970-06-09
Abstract: 1282213 Resiliently mounted seats P C TABOR 9 June 1970 27796/70 Heading A4U [Also in Division F2] A vehicle seat 11, secured to a seat support 22 and supported for vertical movement by parallel links 34, 36, 37 and 38 wherein are pivoted by pins 52, 52a, 52b and 52c to the seat support and to a floor-mounted base 14, is biased upwards by a compression spring 39, which is pivoted to the lower links 37, 38 and coupled to the seat support 22, the hardness of the springing and the height of the seat being adjustable by separate controls operable by the occupant of the seat. A keeper plate 62, fitted to the lower end of the spring 39, is pivoted to a yoke 44 which is slidable in track in the links 37, 38 to alter the angle and hence the hardness of the spring by a screwed rod 46 rotated by a knob 47 and passing through an aperture 48 in the seat support 22. The rod is in threaded engagement with a washer 49 and passes through apertures 51a in a bracket 51 held to pivot pin 52, and aperture 44a in the yoke 44, the inner end of the rod being retained by a copper pin 56. A bracket 64 bolted to the upper end of the spring 39 is secured to a shaft 43 mounted between plates 74 pivoted to side walls 24, 26 of the seat support and having notches 76 one of which is selectively engaged, to determine the height of the seat, by a pin 83 on a plate 79 pivoted to the seat support. Upward urging of the plate 79 by a spring 84 to maintain engagement of the pin in a notch is overcome by downward hand pressure on a handle 88 for adjustment of the seat height by increased downward pressure on the seat by the occupant or by taking part of his weight on to his feet to allow the seat to rise. Tension springs 89, 90 urge the brackets 74 to a raised position to maximum preload the spring 39. A pin 98 limits lowering of the shaft 43 and upward travel of the seat is limited by anchor means 92 which may consist of a hydraulic shock absorber to damp vibration and which is coupled at 93 to the base and secured by a bracket 94 to pin 52a. In modifications, the compression spring 39 is replaced by an air spring, or the means for maintaining maximum preload on the spring 39 are clock springs.
Patent GB-390809-A (GB)
Title: Improvements in or relating to the carrying out of operations with ammonia at elevated temperatures
IPC: C23F15/00
Filed: 1931-10-07
Abstract: Metallic surfaces, such as those of iron, nickel, cobalt, their alloys, and copper, are protected from corrosion by ammonia at elevated temperatures by coating them with a porous layer of a catalyst which is active for the decomposition of ammonia into its elements.  The catalyst is preferably applied in comminuted form and may be mixed with a binding agent, e.g. clay or sodium silicate, to form an adherent coating after heating, or it may be applied in loose form and, if necessary, retained in position by metallic gauze or a screen of suitable material.  The process may be applied to the protection of the required parts of steel and ferrous alloys in the process of hardening with hot, gaseous ammonia, and in this case the catalyst layer is preferably activated by reduction with hydrogen.  A suitable catalyst is granular iron, obtained by the reduction of fused iron oxide, to which promoters such as aluminium oxide, magnesium oxide or zirconium oxide may be added.ALSO:In the hardening of steels and ferrous alloys by means of hot, gaseous ammonia, protection or the parts which are not to be hardened is obtained by coating them with a porous layer of a catalyst which is active for the decomposition of ammonia into its elements.  The catalyst is preferably applied in comminuted form and may be mixed with a binding agent, e.g. clay or sodium silicate, to form an adherent coating after heating, or it may be be applied in loose form and, if necessary, retained in position by metallic gauze or a screen of suitable material.  The catalyst may be activated by reduction with hydrogen.  A suitable catalyst is granular iron, obtained by the reduction of fused iron oxide, to which promoters such as aluminium oxide, magnesium oxide, or zirconium oxide may be added.
Patent GB-660535-A (GB)
Title: Improvements in or relating to sectional boilers
IPC: F24H1/32
Filed: 1949-10-31
Abstract: 660,535. Sectional boilers. VAN HEIJST EN ZONEN N. V., J. B. Oct. 31, 1949 [Nov. 27, 1948], No. 27883/49. Classes 64(i) and 123(ii) In a sectional boiler in which the walls of the sections 2, 3 define a central fuel supply shoot 1 above a grate 7, each boiler section is constituted by a water chamber of substantially rectangular or substantially q-shaped vertical cross-section, through which extend vertical fire tubes 6. In the form shown, the hot gases flow upwardly and then downwardly to outlet flues 15. The water-cooled grate 7 is removable, and can be replaced by a liquid fuel burner.