baber/WOPTO huggingface dataset:
Patent GB-1108913-A (GB)
Title: Improved tunnel liner plate
Inventor: FISHER CHRISTOPHER LAURAINE
IPC: E21D11/15
Filed: 1964-06-01
Abstract: 1,108,913. Bolts &c. ARMCO STEEL CORPORATION. 1 June, 1965 [1 June, 1964], No. 22591/64. Heading F2H. [Also in Division E1] The circumferential seams of a tunnel lining are secured by a bolt 24 having an offset head 25 which coacts with a wedge 27 mounted on a washer 26. In the securing of longitudinal seams (Fig. 5, not shown) a bar (30) having a pair of tapped holes (31), (32) for engagement with bolts (34), (35) is fastened to one plate of the seam by a clip (33) engaging a pair of holes (22), (22<SP>1</SP>) which register with the holes of the bar.
Patent GB-666229-A (GB)
Title: Improvements in or relating to electron discharge devices
Inventor: ROGERS DOUGLAS CECIL
IPC: H01J23/26
Filed: 1948-08-27
Abstract: 666,229. Travelling-wave tubes. STANDARD TELEPHONES & CABLES, Ltd. Aug. 26, 1949 [Aug. 27, 1948; Dec. 3, 1948], Nos. 22641/48 and 31352/48. Drawings to Specification. Class 39 (i). In a travelling-wave amplifier tube in which an electron beam is projected along the axis of a helix, the mean radius a of the helix for operation at a mean free space wavelength#, is given by the expression a=#x/2#n, where n is the ratio of the velocity of wave propagation in free space to that along the axis of the helix, and x is a numerical factor lying between unity and 1.8. Preferably it is equal to 1.5. The ratio of the diameter of the wire forming the helix to the pitch preferably does not exceed 0.6, and may for example be 0.5Œ0.1.
Patent GB-635973-A (GB)
Title: Process for the production of butylene glycol and acetyl methyl carbinol
IPC: C12P7/26
Filed: 1946-07-30
Abstract: VI 2,3-Butylene glycol is produced together with some acetylmethylcarbinol by aerobic fermentation of an aqueous carbohydrate substrate in the presence of inorganic and nitrogen-containing nutrient materials and added acetyl methylcarbinol with Bacillus mesentericus.  The preferred carbohydrate is molasses and the nutrient material an ammon ium phosphate.  The equilibrium between the two products depends partly on the intensity of aeration during fermentation.  The glycol can be separated by evaporation of the wort and distillation of the residue, or by entraining in steam, or by extraction with a solvent such as butyl alcohol, methyl ethyl ketone or methyl tetrahydrofuran.  The Specification as open to inspection under Sect. 91 comprises also the production of the carbinol as the main product by vigorous aeration of the fermenting wort.  This subjectmatter does not appear in the Specification as accepted.ALSO:2, 3 butylene-glycol is produced together with some acetyl methyl carbinol by aerobic fermentation of an aqueous carbohydrate substrate in the presence of inorganic and nitrogen containing nutrient materials and added acetyl methyl carbinol with Bacillus mesentericus.  The preferred carbohydrate is molasses and the nutrient material an ammonium phosphate.  The equilibrium between the two products depends to some extent on the intensity of aeration during fermentation.  The Specification as open to inspection under Sect. 91 comprises also the production of the carbinol as the main product by vigorous aeration of the fermenting wort.  This subject-matter does not appear in the Specification as accepted.
Patent GB-472462-A (GB)
Title: Improvements in apparatus for removing filter cake from rotary filters
IPC: B01D33/00
Filed: 1935-12-20
Abstract: 472,462. Filters. WIEBE, J. Dec. 20, 1935, No. 22702/37. Divided out of 470,965 under which a Specification was laid open to inspection under Sect. 91 of the Acts, July 20, 1936. [Class 46] The filter cake 15 is removed from a rotary filter 1 by means of a stripping roller 16 whose surface is provided with depressions which may be undercut to increase the adhesion of the cake. The cake adhering to the stripping roller is removed by a second roller 18 placed at a small distance from the stripping roller. The rollers 16, 18 may be of different diameters and the latter roller may be grooved or otherwise formed with protuberances and depressions. The depressions in the roller 16 may be formed by a wrapping of wire gauze 17, or by means of cords or wires wound round the roller. The roller 16 may be flexible or made up of a number of separate rollers placed end to end and so mounted that they accommodate themselves axially to any irregularities in the surface of the filter 1. When applied to filters of the disc type the rollers 16, 18 are of conical shape.
Patent GB-1058435-A (GB)
Title: A system for identifying rolling stock on railroads
IPC: B61L25/04
Filed: 1965-05-28
Abstract: 1,058,435. Wagon identification systems. FURUKAWA DENKI KOGYO KABUSHIKI KAISHA. May 28, 1965 [June 1, 1964; June 24, 1964], No. 22707/65. Heading B7N. A wagon identification system comprising a code plate 2 mounted on each wagon and marked in binary decimal code in a fluorescent substance and a track side reading station including an ultra-violet light source 3 which irradiates the code plate and detector means 4 for detecting the fluorescent light beam from the plate coded in accordance with the wagon number. The code plate may be formed of acrylic resin, which is transparent both to the ultra-violet and fluorescent light and its inward facing surface is grooved to form the code pattern. The grooves are filled with the fluorescent material and the grooved surface is covered in black paint.
Patent GB-1436942-A (GB)
Title: Electrical switches
IPC: H01H13/20
Filed: 1972-05-12
Abstract: 1436942 Retractive switch SPERRY RAND Ltd 14 May 1973 [12 May 1972] 22738/73 Divided out of 1436941 Heading H1N In a switch which is actuated by the caging mechanism of a gyroscope and is used for indicating the caged condition (described in Specification 1,436,941) and comprising a disc 1 carrying a pair of part-annular contacts 3 normally bridged by an annular contact 6 carried on a disc 5 mounted on a plunger rod 9 and biased towards the disc 1 by a spring 7, the plunger 9 has an-integral shoulder 13 which on initial movement in a downward direction is arranged to provide lost-motion before becoming engaged with the disc 5 and causing the contacts to open. The part-annular contacts 3 are of gold and the disc 5 comprises a phosphor bronze base 14 having an annulus 15 of insulating material on which a base layer of nickel and a face layer of hard gold are formed by plating.
Patent GB-721929-A (GB)
Title: Isomer of pentachlorophenol
Inventor: AGNINI GIUSEPPE
IPC: C07C45/30
Filed: 1952-09-11
Abstract: The invention comprises an isomer of pentachlorophenol of melting-point 112-113 DEG  C. which apparently has the structure 1 : 2 : 4 : 6 : 6-pentachlorocyclohexa - (1 : 4) - diene - (3) - one. The compound is made by chlorinating phenol or an intermediate chlorinated derivative at a temperature not exceeding 22 DEG  C., preferably between 20 DEG  and 22 DEG  C., in carbon tetrachloride, with the stoichiometeric quantity of chlorine in the presence of anhydrous aluminium chloride.  An example is given.
Patent GB-223373-A (GB)
Title: Improvements in rim locks and latches
IPC: E05B9/06
Filed: 1923-09-13
Abstract: 223,373. Beards, D., Beards, E., Beards, D., and Beards, A. C., (trading as Beards & Sons, D.). Sept. 13, 1923. Locks, cases for.-In a rim-lock of the kind in which the rim is provided with a tedge on which the cover-plate rests, the rim has projections passing through the bent up end or ends of the lock casing and rivetted over. In the form shown in Fig. 1, the fore-end a and rear end b of the casing A is bent up and perforated to receive the end-projections g of the rim c, which projections are rivetted over to secure the rim. A ledge f on the rim supports the cover-plate C which is secured by the screw D. In the form shown in Fig. 5, the rim is made in one U-shaped piece and has projections h riveted to the bent up foreend a only.
Patent GB-369856-A (GB)
Title: Improvements in or relating to television and facsimile telegraph systems
IPC: H04N5/232
Filed: 1931-08-14
Abstract: 369,856. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Goldsmith, A. N. ; 450, West End Avenue, New York, U.S.A.). Aug. 14, 1931, No. 22998. Convention date, Aug. 14, 1930. [Class 40 (iii).] A scanning system 7 is movable towards, or away from, the object 1, and an optical system 3 is simultaneously automatically maintained in focus. The apparatus is mounted on a carriage 25, the wheels of which control, through pulleys 51, 53, a cam 45 which adjusts the position of a spring-pressed carriage 31 carrying the lens 3. The object is thus kept focused on scanning apertures 17. For spotlight scanning the light-sensitive cell 9 is replaced by a light source, Fig. 2 (not shown). The invention is applicable to any type of scanning, and to copying-telegraphs in which the diameter of the drum is varied according to the size of the picture.
Patent GB-296556-A (GB)
Title: Improvements in or relating to reflectors for electric fires and radiators
IPC: F24C7/06
Filed: 1927-09-02
Abstract: 296,556. Berry, H. H. Sept. 2, 1927. Electric radiators.-A radiator employing a horizontal heating element b arranged below an overhanging canopy, is provided with a reflector comprising a plurality of parts 1 - - 4, arranged above, behind and below the element so as to reflect the heat rays away from the element, and spaced apart to form air gaps 5 - - 7. The edges 9 of the reflector parts may be turned back to make the parts more rigid. Specification 274,615 is referred to.
Patent GB-765670-A (GB)
Title: Minimising fire risk when operating rockets, gas-generators or the like
Inventor: ALLEN SIDNEY
IPC: F02K9/56
Filed: 1952-09-16
Abstract: 765,670. Jet propulsion plant. ARMSTRONG SIDDELEY MOTORS, Ltd. Aug. 6, 1953 [Sept. 16, 1952], No. 23206/52. Drawings to Specification. Class 110 (3). [Also in Group XII] In a rocket motor the exterior of the device is enclosed by a fluid-tight jacket to which is fed a fluid under pressure, e.g. nitrogen, so that if the inner walls are burned through, the fluid will be injected into the combustion chamber and the consequent drop in fluid pressure operates an electric relay system thereby cutting off the supply of fuel and oxidizer. Specification 763,962 is referred to.
Patent GB-533370-A (GB)
Title: Improvements in or relating to adjustable electric condensers
Filed: 1939-08-11
Abstract: 533,370. Variable condensers. KOLSTERBRANDES, Ltd., and SMITH, K. G. Aug. 11, 1939, No. 23272. [Class 37] A resilient metal electrode C adjustable as by a screw F is fixed to a ceramic base plate A by a single soft metal rivet D which passes through and fills a non-circular aperture in the metal plate, and a preferably circular hole in the base. The plate C may have a D-shaped rivet-hole G, and round it a semi-circular slot H to leave two resilient arms E.
Patent GB-972624-A (GB)
Title: Rectifier structure
IPC: H01L25/03
Filed: 1963-06-11
Abstract: 972,624. Semi-conductor rectifier assemblies. INTERNATIONAL RECTIFIER CORPORATION. June 11, 1963 [June 20, 1962], No. 23276/63. Heading H1K. A conductive support structure 20 receives the same electrode 40, 41, 42 of each of three rectifiers 30, 31, 32 in intimate electrical and thermal contact, the rectifiers having second electrodes directly connected to respective extending plug members 37, 34, 38 which are engageable with respective plug-receiving terminals 8, 9, 10 of a three-phase source 1 of alternating current. The terminals 8, 9, 10 are carried within an insulating block 13 forming one wall of a housing for the A.C. source 1. The assembly is intended particularly for use in a motor vehicle.
Patent GB-497144-A (GB)
Title: Improvements in or relating to the manufacture of hard metal alloys
IPC: C22C1/05
Filed: 1938-08-06
Abstract: In making alloys of tungsten carbide and cobalt by a method wherein a powdered mixture is sintered in a non-oxidizing atmosphere, the sintering is effected while the mass is embedded in a mixture of carbon and a refractory substance such as alumina or zirconium oxide, the carbon content of such mixture being such as either to cause no carbonization or decarbonization of the product, or so to adjust its carbon content as to obtain a uniformly compact final product.
Patent GB-1020843-A (GB)
Title: Improved tissue-bath
IPC: B01L3/00
Filed: 1963-06-12
Abstract: <PICT:1020843/C6-C7/1> In a tissue bath 1 having a ground well 6a into which tubular specimen holders 7 of different diameters are to be fitted, nutrient solution flows from an inlet 9 upwardly and then downwardly in a 1/4 -inch tubular helix 8 within a temperature-controlled water-jacket, before passing through the tube 10 into the well 6a.  The well is provided with an overload pipe 18 for the nutrient solution.  After each experiment, used nutrient solution is quickly run off through a drain 14 and is replenished by fresh attemperated nutrient solution passing from tube 10; the tube may be closed by a clip (not shown).  The live tissue under examination is suspended in the holder 7 from a pivoted beam.
Patent GB-1002087-A (GB)
Title: Improvements in and relating to fasteners
Inventor: FERNBERG ERIC BIRGER
IPC: F16B5/06
Filed: 1964-06-18
Abstract: 1,002,087. Spring clips. F. T. PRODUCTS Ltd. June 18, 1963 [June 18, 1962], No. 23360/62. Heading E2B. A resilient fastener in the form of a single strip of material of substantially U- shape has a web 11 and two limbs 12, 13 each limb being outwardly elbowed intermediate its length and a lug 14, 15 being sheared and bent inwardly from each limb so as to present a bearing surface which is convex towards the opposite limb. In the construction shown the free end portion of each lug extends in the general direction of the web but in a modification they can extend in the opposite direction.
Patent GB-1273774-A (GB)
Title: Button
IPC: A44B1/34
Filed: 1969-05-07
Abstract: 1,273,774. Buttons. STE D'EXPLOITATION DE BREVETS INDUSTRIELS. 7 May, 1969 [7 May, 1968 (2)], No. 23392/69. Heading A3H. A button comprises a centrally apertured front plate 1 and a fixation member having a retaining head 9 and a tail 3 of supple material which tail is passed through the cloth 8 so that one of a plurality of locking portions on the tail 3 may engage means associated with the front plate orifice 2. The excess part of the tail shown in dot-dash lines protruding through said front plate 1 may be removable, locking grooves formed in the tail 3 having front lips 5 which provide removal points and rear lips 6 of trunco-conical shape. A front cover plate (11a) Fig. 5 (not shown) may be placed on the front plate (11) after the tail has been inserted in the orifice and the excess cut off. Alternatively, the front plate may receive an apertured elastic washer (26) Fig. 9 (not shown) in a circular groove (23) Fig. 8 (not shown). The tail grooves may be diametrically opposed barbs (18) Fig. 6 (not shown) or three symmetrically opposed barbs (19) Fig. 7 (not shown).
Patent GB-1195471-A (GB)
Title: Improvements in or relating to Apparatus for Providing a Representation of Engine-Life
Inventor: EVANS JOHN FAWCETT OGILVIE
IPC: G07C3/00
Filed: 1968-01-15
Abstract: 1,195,471. Transistor amplifying circuits; pulse modulation circuits. SMITHS INDUSTRIES Ltd. 13 Jan., 1969 [l5 Jan., 1968; 17 May, 1968], No. 2234/68. Headings H3T and H4L. [Also in Divisions G1 and G4] A current-to-frequency converter (Fig. 4) comprises a capacitor 43 connected across an amplifier 42 which together integrate the input current. The output is fed to a control circuit 45 which emits a pulse at a predetermined level to cause transistor 44 to conduct and discharge capacitor 43. The output is a sawtooth voltage whose frequency is determined by the input level. Amplifier (Fig. 6).-The signal from a bridge 90, indicating the deviation from a predetermined value of the temperature measured by a thermocouple 51, is fed to a chopper amplifier 93 comprising a double emitter transistor 95 fed with A.C. at terminals 97. The resulting square wave output is amplified at 98 and supplied in parallel to two transistors 100, 101 fed with the same A.C. in opposite phase on their second emitters. The resulting alternate pulses of D.C. are fed to amplifier 104, with smoothing provided by capacitors 107, 108, the output at 52 being proportional to the input signal. Negative feedback via integrating network 109 provides a phase-advance component to compensate for time lag in the operation of the thermocouple 51.
Patent GB-1131147-A (GB)
Title: Improvements in vinyl chloride polymer blends
IPC: C08L51/00
Filed: 1966-05-26
Abstract: 1,131,147. Vinyl chloride polymer blends. UNIROYAL Inc. 26 May, 1966 [24 June, 1965], No. 23599/66. Headings C3G and C3P. A composition comprises a blend of (1) one or more normally rigid polymers of vinyl chloride containing more than 90% of vinyl chloride, and (2) one or more internally plasticized copolymers being copolymers of vinyl chloride with a vinyl ester of a monocarboxylic acid having 6 to 22 carbon atoms and/or a dialkyl maleate or fumarate in which the alkyl groups have 4 to 20 carbon atoms, the comonomers in the copolymer (2) constituting 10 to 60% of the copolymer and from 1 to 10% of the blend. The polymers may be obtained by conventional techniques or by a process in which the monomers are first copolymerized and vinyl chloride is then graft copolymerized on to the backbone chain so formed. The composition may contain stabilizers such as calcium or lead stearate or dibutyl tin maleate. In the examples, binary and ternary copolymers of vinyl chloride with the following monomers are used as component (2): vinyl stearate, dibutyl maleate, di-2-ethyl-hexyl maleate, dilauryl maleate, and vinyl-2-ethylhexoate, while in Example V a copolymer of vinyl chloride and dilauryl maleate is used as component (1), polyvinyl chloride being used in the remaining examples for this component.
Patent GB-729239-A (GB)
Title: Improvements in radar systems
Inventor: MCMULLIN TERENCE ALEXANDER
IPC: G01S7/22
Filed: 1952-09-19
Abstract: 729,239. Radar. MURPHY RADIO, Ltd. Sept. 21, 1953 [Sept. 19, 1952], No. 23628/52; Class 40 (7). In a radar having a stroke pulse generator and a stroke pulse drift controller, the rate of drift of the stroke pulse is related to the repetition frequency of the transmitter. The pulse generator and transmitter 1 of the radar may be associated with a strobe pulse generator 2 of known type providing a gating pulse at a time after the pulse from unit 1 dependent on the condition of the Miller integrator associated with valve 3. The anode-grid capacitor 5 of this integrator is coupled through resistor 6 to diode 7 and short negative pulses simultaneous with the transmitted pulse are fed over capscitor 8 to the cathode of this diode. The voltage at the integrator anode therefore rises by a small amount every time a pulse is transmitted and the interval between the transmitted pulse and the strobe pulse is correspondingly increased. The rate of drift of the strobe pulse is thus made dependent on the transmitter repetition frequency. When the strobe pulse drifts into coincidence with an echo signal received by receiver 9, a positive output pulse is generated by gate circuit 11 which is passed by capacitor 12 and diode 13 and fed to capacitor 9 to set back the strobe pulse in the opposite direction to its normal drift. With full coincidence the setting back is arranged to sufficiently exceed the advance caused by the pulse from the transmitter to ensure that the stroke will follow the echo signal even if the object causing it is changing range in the opposite sense to the normal pulse drift and not every transmitted pulse produces an echo signal. In addition, the output of the gating circuit (or of part of it using an auxiliary wide stroke) is used to reduce the repetition frequency of the radar when the stroke locks on to an echo. For this purpose an output is fed from the gate circuit to a relay 16 serving to modify the circuit of unit 1 and reduce the repetition frequency. Thus when the radar is used in conjunction with a responder beacon the demands made by it on the beacon time can be considerably reduced once the initial locking on has taken place and the beacon enabled to operate effectively with a larger number of interrogating devices. Specifications 690,480 and 718,038 are referred to.
Patent GB-880820-A (GB)
Title: Feed mechanism for mills for rolling tubes by the pilger process
IPC: B21B21/04
Filed: 1959-07-09
Abstract: 880,820. Rolling. INNOCENTI SOC. GEN. PER L'INDUSTRIA METALLURGICA E MECCANNICA. July 9, 1959 [July 10, 1958], No. 23668/59. Class 83(4). A feed trolley for a pilger-type tube rolling mill is fed slowly by a screw and nut device during approach, rolling and mandrel stripping steps and by a further quickfeed mechanism for approach and return movements in bringing a fresh blank to the rolls. A blank 4 is rapidly advanced to the rolls by the operation of cranks 17, 17<SP>1</SP> rotated through 180 degrees by a motor 19 to move a feed trolley 1 attached to the cranks through connecting rods 16, 16<SP>1</SP>. A motor 11 is then started to rotate a feed screw 5 through a splined shaft 9 and gearing 8, 7 so that the reaction of the screw thread on a nut 14 accommodated in a stud 15 secured to the connecting rods 16, 16<SP>1</SP> and slidable on the trolley 1 causes slow uniform feed of the trolley and blank 4 during the period of initial engagement with the rolls, the rolling period and the stripping period. After stripping against a stationary bush 23 a fast return of the trolley is effected by rotation of the cranks 17, 17<SP>1</SP> in the reverse direction while at the same time running the screw in reverse. In a modification the motor driving the feed screw may be directly mounted on the trolley. Alternative quick-feed mechanisms include hydraulic cylinders 26, 26<SP>1</SP> (Fig. 8, not shown), a rack and pinion mechanism, a rope and pulley, or a chain and sprocket mechanism.
Patent GB-630818-A (GB)
Title: Improvements in and relating to rotary engines
IPC: F04C2/36
Filed: 1947-08-27
Abstract: 630,818. Rotary engines. LAMBRINOS, C. Aug. 27, 1947, No. 23743. [Class 110(ii)] The engine has an oscillating abutment 28 which co-acts with a radial piston 20 on a rotor 18 rotating in a working chamber bounded by a casing 10, end walls 12 and bosses 14. The abutment is oscillated by means of a cam 34 on the main shaft 16 and returned by a spring 40, and working fluid, which may be steam, compressed air or other elastic fluid, is admitted through an inlet 30 under control of a slide valve 42. An exhaust port 32 is provided. The web 22, of the rotor 18, fills the space between the ends of the bosses 14, and is keyed to the shaft 16. L-shaped packing pieces are provided in the piston and the abutment carries packing 48. Two or more engines may operate on the shaft which may carry a flywheel 56. Balance weights for the rotor may be provided.
Patent GB-728030-A (GB)
Title: Improved radioactive lightning conductor
IPC: H02G13/00
Filed: 1953-08-28
Abstract: 728,030. Lightning conductors. CAPART, A. Aug. 28, 1953 [Sept. 1, 1952], No. 23796/53. Class 36. In a lightning conductor 1 provided with one or more members carrying radio-active material 5, the members comprise one or more deflecting surfaces disposed so as to deflect moving air upwardly. The member may be in the form of a plate 3 (Fig. 1) having a concave flange 4 and may include apertures in the form of louvres 6. A number of such plates may be disposed one above the other. The member may alternatively be in the form of a cup 7 (Fig. 3) having a number of apertures 8 in its base, and one or more concave flanges 4. A slightly conical plate 9 is connected to the outer face of cup 7 by blades 10 which form convergent ducts, each of which leads into the cup through one of the apertures 8. In a further form the cup 7 (Fig. 7) is formed with louvres 6 in its base, and rotatable blades 16 carrying concave projections 16<SP>1</SP> are mounted on the conductor 1 so as to turn under the influence of the wind. The member carrying the radio-active material may form an enclosure for a magnetic and/or electrostatic exciter.