baber/WOPTO huggingface dataset:
Patent GB-875444-A (GB)
Title: Improvements in or relating to rotary vacuum pumps
Inventor: POWER BASIL DIXON
IPC: F04C27/02
Filed: 1957-02-07
Abstract: 875,444. Non-return valves. EDWARDS HIGH VACUUM Ltd. Jan. 28, 1958 [Feb. 7, 1957], No. 4283/57. Class 135. [Also in Group XXVI] A lift valve, Fig. 2, for controlling the supply of oil to a vacuum pump (see Group XXVI), comprises a resilient disc 20 and a metal backing plate 21 which are positioned by a spring 22 bearing against a clamping screw 23 and which serve to control the supply of oil from an inlet groove 18 to a concentric outlet groove 19. The screw 23 is provided with shoulders 24, 25 respectively serving as a downward stop and a clamp to position the disc 20 near its centre with a controlled amount of compression. The overflow from the groove 19 is fed to a reservoir 17. In a modification, Fig. 3, the spring 33 abuts a bridge-piece 34 and the groove 18 is replaced by a central recess 31.
Patent GB-826698-A (GB)
Title: Improvements in or relating to door catches
IPC: E05C19/02
Filed: 1957-02-08
Abstract: 826,698. Door catches. GREENMAN, C. Feb. 7, 1958 [Feb. 8, 1957], No. 4402/57. Class 44 A door-locating catch comprises a main element 1 mounted on the door and a cooperating nose piece 14 mounted on the door frame, the main element embodying a spring-loaded pivotally-mounted locating catch piece 2 arranged for over-centre action so as to be maintained by a spring 4 in two alternative positions. In the open position of the door, Fig. 7, the operative end 11 of the catch piece 2 is inclined at an angle to the door and has a circular opening 12 for the reception of the nose 15 of the nose piece 14; further closing movement of the door will cause the catch piece to be thrown to its alternative position to hold the door closed and located. Instead of the circular opening 12, the operative end 11 is formed as a cupped socket portion which may be longitudinally divided.
Patent GB-1458407-A (GB)
Title: Newspaper or like article vending machine
IPC: G07F11/22
Filed: 1974-01-30
Abstract: 1458407 Vending machines M GROSSE 30 Jan 1975 [30 Jan 1974] 04422/74 Heading A4T A machine for dispensing newspapers or like articles comprises a casing 1 in which a platform 3 and carriage 9 are independently movable along parallel guide rails 2 (only one shown), a stack of newspapers 12 in use of the machine being located on the platform 3 and a dispensing means 11 comprising arm 13, 14 removes the top newspaper from the stack 12 at each dispensing action and moves it in the direction of the arrow X through a mouth 24 at which a person can then manually remove the newspaper, the platform 3 being supported by a framework 4 having rollers 5 which move along the rails 2 and a tension spring 6 is anchored at 7 to each rail 2 and at 8 to the platform 3 so that as the newspapers are dispensed from the stack 12 the platform 3, framework 4, stack 12 and carriage 9 along with the dispensing means 11 are moved upwardly by the springs 6 to maintain the top of the stack 12 at substantially the same level. In order to obtain a newspaper from the machine a coin or coins is/are inserted into a coin accepting mechanism 25, the coin(s) passing along a shoot 26 to a mechanism 22 having a handle 23 which is then freed for manual rotation, the handle 23 being connected by a Bowden cable 27 to the arm 14 of the dispensing means 11. The arm 13 is pivotally attached to the carriage 9 at one end and to the arm 14 at its outer end, the latter having a shaft (16), on which toothed wheels 17 are mounted, located at its lower end, Fig. 1 (not shown), and a spring 20 biases the arm 13 downwardly while a spring 21 biases the arm 14 upwardly, and when the handle 23 is manually rotated the core of the cable 27 is retracted into its sheath thereby causing movement of the arms 13, 14 to their positions shown in phantom such that the wheels 17, which are prevented from clockwise rotation by a pawl and ratchet mechanism (19), cause the top newspaper to slide in the direction of the arrow X, while a bracket 33 on the carriage 9 engages the top of the remaining stack to prevent a further newspaper being dispensed. When a newspaper has been dispensed the handle 23 is returned either manually or by spring action to its original position such that the core of the cable 27 is extended from its sheath to return the arms 13, 14 back to their original (solid line) positions, the wheels 17 being able to rotate anti-clockwise along the top of the stack 12 during such return movement. The carriage 9 is attached to the rails 2 by means of rollers 10. When all the newspapers have been dispensed a member, which was located below the stack 12 and is located at the end of the core of a Bowden cable 29, protrudes out of the cable 29 to cause the coin-accepting slots of the mechanism 25 to be rendered inoperable. The casing 1 may be incorporated in the facade or hollow wall of a building.
Patent GB-385776-A (GB)
Title: Improvements in and relating to radio receivers
IPC: H04R19/02
Filed: 1932-02-15
Abstract: 385,776. Loud-speakers. GRIGSBY, B. J., 5801, Dickens Avenue, Chicago, U.S.A. Feb. 15, 1932, No. 4431. [Class 40 (iv).] An electrostatic reproducer having a substantially plane surface forms one or more of the panels or walls of a wireless receiver cabinet. As shown in Figs. 2 and 5, the loudspeaker comprises a relatively stiff metal-plate 10 with perforations 11 and slightly waved. In contact with the plate 10 is a sheet of dielectric material, such as rubberized silk to which a flexible conducting material 13 such as gold leaf, is secured by adhesion. The diaphragm is protected by a grille 24, the receiver controls 18, 19 passing through the diaphragm and grille. Three or all four walls of the cabinet may be constituted by diaphragms and protecting grilles, Figs. 4 and 6 (not shown); or three normal side panels may be used with diaphragms associated with each, the fourth side being a grille for the sound output, Fig. 7 (not shown). Certain apparatus controls may be rigidly mounted on the diaphragm between insulating clamps, Fig. 8 (not shown).
Patent GB-720722-A (GB)
Title: An improved pressure stove burning liquid hydrocarbon fuel
IPC: F23D11/44
Filed: 1953-02-17
Abstract: 720,722. Vapour burners. ALADDIN INDUSTRIES, Inc. Feb. 17, 1953 [March 11. 1952]. No. 4462/53. Class 75 (1). For ensuring a steady flow of liquid fuel from the tank to the vaporizer of a vapour burning pressure stove, a wick 22, Fig. 1, comprising a small number of glass fibre strands extends through a tube 20 from a narrow intake orifice 23 in the latter through which fuel passes from a tank 10 maintained under superatmospheric pressure, the fuel flowing through the tube 20 to a vaporizing chamber 22 in a valve housing 21. The latter contains a tapered valve member 28 operated by a rotary knob 29 to adjust the flow of vapour from the vaporizing chamber 24 to either or both of two burner outlet orifices 46, Fig. 3. A needle 47 mounted on a slide 44 is moved back and forth to clean the orifices 46 when the knob 29 is rotated, the slide 44 being actuated by a crank 42 at the end of the valve member 28. To start the burner a valve 26 is opened and the resilient lower convex wall 12 of the tank 10 is repeatedly pressed and released to discharge a quantity of fuel past the valve 26 into a bowl 54 where it is ignited to preheat the valve housing 21. Air in a tube 18 (which supports the borner on the tank 10 and surrounds the tube 20), is then heated to increase the vapour and air pressure in the tank 10 so that liquid fuel is forced through the aperture 23 to rise through the tube 20 partly by capillary action through the wick 22. If the valve 28 is fully open vaporized fuel is discharged through both apertures 46 and mixes in a surrounding chamber 45 with air entering through an annular slot 49. The combustible mixture is discharged through apertures provided under a pair of tongues 51 stamped out of the bowl shaped upper wall 48 of the chamber 45 and forms an annular flame around said wall.
Patent GB-1037560-A (GB)
Title: Improvements in and relating to filaments for thermionic valves
IPC: H01J1/22
Filed: 1964-02-03
Abstract: An alumina insulated filament wire for a thermionic valve cathode heater has an additional layer comprising an element of high oxygen-binding capacity, to prevent deterioration of the alumina. Suitable elements are zirconium, niobium, tantalum and titanium, and may be applied before or after the alumina.  In a first example, zirconium hydride is deposited on a tungsten wire by cataphoresis from a suspension of Zr H2 in isopropylalchol and Ni Cl2 (0-2N). Alumina is then applied and sintered conventionally.  In a second example the alumina is applied first and the hydride next, then both layers are sintered in a reducing atmosphere.  In a final example alumina is applied to tungsten by cataphoresis, then a suspension of titanium and alumina in colladium is applied by spraying, followed by sintering of both layers.  This produces a black filament.
Patent GB-550678-A (GB)
Title: Improved means for measuring and indicating temperatures of rotating surfaces
IPC: G01K13/08
Filed: 1942-04-03
Abstract: 550,678. Roller mills. SPEIGHT, J. April 3, 1942, No. 4488. [Class 59] The temperature of the rollers of mills &c is measured and indicated by a shoe which bears on a surface other than the operative surface and contains a temperature-responsive element. As shown, the shoe 4 is pressed against the end 2 of the roller 1 and contains an element operating an indicator 10.
Patent GB-511024-A (GB)
Title: Improvements in or relating to combs
IPC: A45D24/10
Filed: 1939-02-13
Abstract: 511,024. Hair combs. AMERICAN HARD RUBBER CO. Feb. 13, 1939, No. 4654. Convention date, Oct. 25, 1938. [Class 131] To obviate the necessity for carrying bobby pins loose in a handbag, the back 9 of a hair comb is provided with recesses 12, 14 separated by a web 21 and subdivided by ribs 15 so as to provide receptacles for the bobby pins 24, which straddle the enlarged end 29 of the web.
Patent GB-993529-A (GB)
Title: Dihydrodibenzothiazepines
Filed: 1962-02-07
Abstract: The invention comprises compounds of the formula <FORM:0993529/C2/1> and their non-toxic acid addition salts; wherein A is a lower alkylene or oxa-lower alkylene radical, B is a basic saturated nitrogen-containing radical of less than 12 carbon atoms, e.g. amino, alkylated - amino, hydroxyalkylatedamino or piperidyl, pyrrolidyl, morpholinyl, thiamorpholinyl or piperazinyl groups or their substituted derivatives, Y is oxy or imino, R and R1 are hydrogen, halogen, lower alkyl, lower alkoxy or trifluoromethyl and R11 is hydrogen, lower alkyl or monocyclic aryl (the word "lower" indicating a radical of less than 8 carbon atoms); and their preparation by reacting the corresponding dihydrodibenzothiazepine-10-carboxylic chloride with an amine or alcohol B-A-Y-H and, if desired, treating the product with an organic or inorganic acid to produce the acid addition salt.  Dihydrodibenzothiazepine - 10 - carboxylic chloride derivatives optionally bearing substituents R, R1 and R11 are made by treating a benzenethiol with an o-chloronitrobenzene to give a 2-nitrophenyl phenyl sulphide which may bear substituents R and R1; reducing to give a 2-phenylthioaniline; treating this with formic acid, an alkanoyl halide or an arylcarbonyl halide to give the corresponding acylated phenylthio aniline, wherein the acyl group is of the formula R11CO; cyclizing by treatment with a mixture of polyphosphoric acid and phosphorus oxychloride to give a 10-unsubstituted dihydrodibenzothiazepine; reducing, e.g. with lithium aluminium hydride and aluminium chloride, to a 10,11-dihya rodibenzo-[b,f][1,4]-thiazepine and reacting with phosgene to give the 10-carbonyl chloride.  Pharmaceutical preparations having activity as ataractic and anti-histaminic agents comprise the above compounds of the invention in association with a carrier in a form suitable for oral or parenteral administration such as tablets, capsules or injectables.
Patent GB-576821-A (GB)
Title: Improvements relating to thermostatic switches for controlling electric circuits
IPC: B23Q5/34
Filed: 1944-10-06
Abstract: 576,821. Partly electromagnetic switches; snap-action switches. C.A.V., Ltd., and CURZON, T. Oct. 6, 1944, No. 4778/45. Divided out of 568,714. [Class 38 (v)] Upon the occurrence of abnormal current a bimetal strip c or other thermal element moves a contact b away from a contact a whereupon an electromagnet e in shunt with the contacts becomes energised, attracts its armature f which carries the contact a, further separates the contacts and holds them open. A hand operated switch may be arranged in circuit with the above device and incorporated in the same structure. This hand switch is operated by pulling or pushing a knob 3 thereby compressing one of two springs 6 till contacts x connected by a spring bridging member z snap out of V-shaped notches y or 9 into notches 9 or y and so break or complete the circuit between contacts w.
Patent GB-1454593-A (GB)
Title: Arrangement which increases the apparent resolving power of an optical fibre
IPC: G02B27/00
Filed: 1974-02-01
Abstract: 1454593 Light guides THOMSON-CSF VISUALISATION ET TRAITEMENT DES INFORMATIONS (T-VT) 1 Feb 1974 [2 Feb 1973] 04856/74 Heading G2J An optical fibre having a cladding of lower refractive index, or a bundle of such fibres, has an extension 5 beyond the end-face 6 of the fibre to form a hollow guide which has light-absorbent inner walls and which serves to reduce the aperture angle of the fibres, thereby increasing its apparent resolving power. The extension may be two plates, as shown, or two more optical fibres (8, 9), Fig. 4 (not shown), and they may conduct light from a source and emit it towards an object 4 where it is reflected to the central fibre. The fibres may be of rectangular cross-section, Fig. 6 (not shown), and emitter and receiver fibres may be intermingled, Fig. 8 (not shown).
Patent GB-1119581-A (GB)
Title: An improvements in or relating to rolling mill apparatus
Inventor: WILSON ALEXANDER IAN
IPC: B21B31/02
Filed: 1965-02-04
Abstract: 1,119,581. Rolling. HILLE ENG. CO. Ltd. 25 Jan., 1966 [4 Feb., 1965], No. 4907/65. Heading B3M. A rolling mill includes a pair of rolls 14 and 16 supported at each end in bearings 36, and each including, extending over its working length, an exchangeable sleeve 22, the sleeve being removed by sliding it from the roll shaft after first removing the right hand roll bearing and chock 42. The roll itself need not be moved from the mill, and is supported, during sleeve changing, by the left-hand bearing. Each sleeve 22 is keyed to the roll shaft and is clamped in place by a threaded sleeve 26 which can be locked by a key 34. The roll 14 is adjusted conventionally by screws 53 and is balanced by rods (58), Fig. 2 (not shown), supported on a yoke (60). Pivoted guides (74) are aligned with dovetail slots (70) and (71) in the roll chocks when the chocks are to be removed, the upper guide (74) being connected to a threaded rod 76 so that it moves with the roll 14 during pass adjustment. In an alternative form, Fig. 4 (not shown), the entire housing (113) together with the right-hand chocks, is movable on a pivoted jib (119) towards the right to permit exchange of the sleeves 22. Alternatively, a secondary housing, located within the housing (113), may be supported by the jib. The rolls are driven from a motor 115 through a belt pulley drive (117) and gearing (112). The invention is applicable to 3- or 4-high mills.
Patent GB-1374161-A (GB)
Title: Epoxy compositions
IPC: C08G59/40
Filed: 1972-02-02
Abstract: 1374161 Laminates MINNESOTA MINING & MFG CO 2 Feb 1972 [3 Feb 1971] 4986/72 Heading B5N [Also in Division C3] Laminates are prepared by first impregnating glass cloth with an adhesive comprising: epoxy resin, a curing agent (e.g. dicyandiamide) which alone would be ineffective to impart heat resistance to the cured resin at 175-215‹ C., and as additional curing agent an aromatic dicyanate, e.g. bisphenol A dicyanate. In an example glass cloth is coated with such a composition, continuous 100 micron boron filaments were placed between the resin film and a self supporting film of the same resin composition to yield a flexible product. A 15-ply laminate was prepared curing under 6 kg./cm.<SP>2</SP>/175‹ C. followed by post cures at up to 215‹ C. Reference has been directed by the Comptroller to Specification 1,218,446.
Patent GB-792338-A (GB)
Title: Improvements in or relating to processes for the manufacture of multi-core telecommunication cables
IPC: H01B13/14
Filed: 1956-02-17
Abstract: 792,338. Extrusion-coating telecommunication conductors. SIEMENS & HALSKE AKT.- GES. Feb. 17, 1956 [Feb. 19, 1955], No. 5016/56. Class 87(2). [Also in Group XXXVI] In a process for making multi-core telecommunication cables, the conductors of a group of cores are individually but simultaneously coated with insulating material by means of a single extrusion press, and then the insulating material is converted to cellular material. Fig. 2 illustrates the production of a single stai quad. Four bare conductors a, b, c, d, run from bobbins 24 through a guide 25 to an extrusion press 26 from which they emerge coated with, e.g., polythene. The coated conductors (cores) pass through a zone 27 in which the polythene is foamed by heating to give it a cellular character, and then through a zone 28 in which the cellular material is cooled to harden it, and finally through a twisting die 32 and so to a drawing drum 30 and winding bobbin 31. Fig. 1 shows the single star quad thus made, covered with other material 11, 12. In a modified procedure the cores may be wound on to a bobbin without being twisted and then, in a separate operation, unwound from the bobbin and twisted. Multiple twin star quads may be made by winding pairs of foamed and cooled cores, each pair being wound on a separate bobbin, the twisting of the two cores of each pair and of the pairs to quads being then carried out in a separate operation. The Fig. 2 apparatus may be modified in that (a) the cores may pass through gauging dies in or after the cooling zone 28 ; (b) the four cores may be led to a twisting die separate from frame 29, then wound with tape and finally led to a drawing drum and winding bobbin ; (c) a separate guide for each core may be arranged between the cooling zone and die 32. The bare conductors may be pre-twisted before being coated. The insulation on each core may be of a different colour, colouring material being supplied through channels on the inside of the extrusion nozzles, or may be given a distinguishing marking after they leave the extrusion press.
Patent GB-249652-A (GB)
Title: Improvements in and relating to appliances for cutting or slitting buns or cookies and the like preparatory to the insertion in the slit of butter, sweetmeat and the like
IPC: B26D3/30
Filed: 1925-02-24
Abstract: 249,652. Renzi, W. de, Adamson, J., and Wilson, J. Feb. 24, 1925. Bread.-A machine for cutting or slitting buns, cookies, or the like preparatory to the insertion of butter, sweetmeat or the like, comprises two superposed endless belts a, b and a knife c positioned between them, the buns being carried forward between the belts and slit by the knife. The lower belt b may be provided with spikes t, both belts a, b are trained over spring-loaded tensioning-pulleys, and the belts are connected by parallel swinging arms v whereby the space between them may be varied. A guard u protects the operator from the spikes t, and the belts a, b are interconnected by gearing p, p<1> enclosed in a casing p'. . A fence m extends longitudinally along one side of the machine and positions the buns relatively to the knife c which has an inclined cutting-edge. The machine may be provided with an automatic feeding arrangement.
Patent GB-287500-A (GB)
Title: A machine for the determination of internal friction or damping of materials under torsional oscillations
IPC: G01N3/56
Filed: 1928-02-17
Abstract: 287,500. F÷ppl, O., and Pertz, E. March 22, 1927, [Convention date]. Testing physical qualitics of materials. - Relates to apparatus in which the damping capacity of material is determined by placing a specimen rod under torsional oscillations, and comprises a suspension for the rod external losses due to the suspension itself are reduced to a minimum. The specimen rod a is formed with squared ends, and one end carries the oscillatory mass b while the other carries the counter mass c which comprises a frame made from strong flat iron surrounding the rod a and mass b. The securing of rod and frame is effected by an attachment head d arranged coaxially with the rod a and rotatable relative to the frame whereby within limits any angular setting of the mass b relative to the frame may be attained. The free end of the rod a is guided by a pivot h of very small diameter. The oscillations are recorded by a writing apparatus i with the aid of ink or a spark gap or finally ascertained by an optical method. The whole arrangement is suspended by one or more wires k attached to the head d. In order that the axis of the rod a and the axis of twisting may coincide, the machine is balanced statically and dynamically by means of a mass l. The squared parts of the rod a are gripped by two narrow ledges on the part b which is made in two parts clamped together. The upper end of the rod a is similarly clamped in the attachment head d. After subjecting the rod to torsion the mass b is held fast by electromagnets g mounted on the frame c. A switch is moved to interrupt the current to release the mass, such switch temporarily making the circuit of counter windings to destroy residual magnetism.
Patent GB-136967-A (GB)
Title: Improvements in Connectors for use with Electrically Operated or Heated Devices.
Inventor: COLLINS GEORGE HENRY
Filed: 1919-03-03
Abstract: 136,967. Collins, G. H., Collins, H. F., and Pitcher, C. G. March 3, 1919. Plug couplings and connectors. - A connector for electrically operated or heated devices, such as electric irons, comprises a china or equivalent main insulating-portion, Fig. 4, having holes 16 in which are split sockets, and an end portion or cap of a material which is both heat and electricity insulating, such as porcelain or vulcanite. the cap having ears whereby it may be handled without risk of burning the fingers. The holes 16 for the sockets are square at their inner ends and have rectangular section channels 19 in which flat portions 20 of the sockets engage to prevent rotation. The sockets are of sheet metal and are split longitudinally, and also transversely at intervals, each resulting portion making independent contact with the spigot. The flexible cord is brought in through a spring-like wire member 31. which prevents abrasion and is secured in a helical groove in the cap; the cord passes out through a hole 4 in the cap, where it is, knotted, and the wires are taken singly through holes 7, 8 to the socket terminals. The main insulator is housed in a flanged metal casing 23 to prevent breakage and, by this means and a screw 26, is secured to the end piece or cap. Specification 107,831 is referred to.
Patent GB-1045661-A (GB)
Title: Improvements in or relating to magnetic recording systems
IPC: H04N5/921
Filed: 1965-02-08
Abstract: 1,045,661. Recording video signals. AMPEX CORPORATION. Feb. 5, 1965 [March 9, 1964], No. 5281/65. Heading G5R. The optimum bias level for recording video signals is not the same as the optimum level for recording synchronization pulses. According to the invention the bias level is increased when synchronization pulses are to be recorded. In Fig. 2 (not shown), synchronization pulses are separated from the composite input video signal and used to turn on a normally non- conducting transistor 44 arranged in parallel with a resistor 28 in the emitter circuit of a bias amplifier 22 which supplies bias to the record head. The composite video input is applied directly to the head through an amplifier.