baber/WOPTO huggingface dataset:
Patent GB-1310637-A (GB)
Title: Centrifugal spreading apparatus
IPC: A01C17/00
Filed: 1971-04-19
Abstract: 1310637 Centrifugal spreaders VOGEL & NOOT AG 19 April 1971 [13 Oct 1970] 20820/ 71 Heading AID Centrifugal spreading apparatus comprises a hopper, a rotatable spreader element and a valve arrangement for an outlet port located in the hopper; the flow through the outlet port, and the point at which the bulk of the material is delivered to the spreader element, being independently adjustable by a single lever, which is mounted in a universal joint allowing movement in two mutually perpendicular axes. In an embodiment Fig. 4 the valve arrangement comprises two adjustable valve members 23, 24, located in the side of the hopper, being controlled by lever 12. Moving the lever about axis a-a' adjusts the flow through each orifice, moving the lever about the axis b-b' adjusts the relative flow through each orifice, and thus the spreading pattern, without adjusting the overall flow rate. In another embodiment, Fig. 2, the valve members 23, 24 are located beneath the hopper and orifices 10, 11 adjusted, as before by lever 12.
Patent GB-353233-A (GB)
Title: Water level regulators for boilers
IPC: F22D5/14
Filed: 1930-07-09
Abstract: 353,233. Feedwater regulators for steam boilers. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES, Mulhouse, Haut-Rhin, France. July 9, 1930, No. 20832. Convention date, Oct. 17, 1929. [Class 123 (ii).] The feed valve 10 or the equivalent is operated by the expansion and contraction of a tube 5, the temperature of which varies according to the velocity of flow of the steam or of the steam and water discharged from the boiler under the control of the water level therein. The flow of boiler steam through the discharge pipe 1, Fig. 1, containing a restriction 4, and through the tube 5 is controlled by a valve 3 operated by a float in the boiler. The discharge pipe 1, Fig. 2, opens into the boiler above'and below the normal water level. A rise in the water level causes an increased generation of steam by reduction of pressure at the restriction 4 and a consequent increased expansion of the tube 5. Cooling water may be circulated through a jacket 17 around the tube. Boiler steam and water may pass through the expansion tube 18, Fig. 3, before passing through the restriction 20, after which the steam flows through a heating jacket 21 around the tube. Transmission of heat to the inner surface of the tube is prevented by a lining 23. In modifications, the expansion tube is coiled or curved in the manner of a Bourdon tube. The heating jacket 21 may only partly surround the tube. The lever 8, Fig. 1, operating the feed valve may carry a pointer indicating the boiler water level.
Patent GB-922343-A (GB)
Title: Improvements in or relating to the manufacture of hub bodies
IPC: B21D53/86
Filed: 1959-06-17
Abstract: 922,343. Wheel hubs. R. GOTTSCHALK. June 17, 1959, No. 20876/59. Class 144 (1). A wheel hub comprises a barrel 1 with spoke flanges 2, 3 secured thereto, at least one of said flanges 3 having a frustoconically apertured inner peripheral sleeve 3<SP>1</SP> to mate with a corresponding axially outwardly 8 tapering, frusto-conical portion 1<SP>1</SP> of the barrel, the axially outer end 1<SP>11</SP> of the portion 1<SP>1</SP> being flared outwardly against a correspondingly funnelled part of the sleeve aperture to wedge the flange more tightly on to the tapered portion 1<SP>1</SP>.
Patent GB-662024-A (GB)
Title: Insecticidal and fungicidal amidothiophosphates
IPC: C07F9/24
Filed: 1949-08-11
Abstract: Amidothiophosphates, having insecticidal and fungicidal properties, and of the general formula <FORM:0662024/IV (b)/1> (wherein each X represents chlorine or bromine, n is an integer from 1 to 5, R represents an alkyl or cycloalkyl radical, R1 represents hydrogen or an alkyl radical and R2 represents a cycloalkyl or alkyl radical) are manufactured by reacting together thiophosphonyl chloride, an alkali metal halophenolate, an alkali metal monohydric alcoholate and a monoalkyl, monocycloalkyl, dialkyl or N-alkylcycloalkyl amine, the thiophosphoryl chloride being first separately reacted with any one of the other reactants and the resulting intermediate then reacted with the remaining reactants.  Advantageously an N-substituted dichlorothiophosphoramide of the formula <FORM:0662024/IV (b)/2> obtained from PSCl3 and an amine NHR1R2 is reacted with an anhydrous alkali metal (e.g. sodium) halophenolate and an alkali metal monohydric alcoholate, preferably at 30-110 DEG  C. (e.g. 45-70 DEG C.) in an inert organic solvent (e.g. excess of the alcohol employed in the preparation of the alcoholate).  Other orders of reaction are also described, and the various alternative procedures are illustrated by examples of the preparation of compounds in which Xn is p-chloro, p-bromo, 2 : 4-dichloro and dibromo, 2 : 4 : 5- and 2 - 4 : 6-trichloro, 2 : 4 : 6-tribromo, 4-bromo-2 : 6-dichloro, 2 : 3 : 4 : 6-tetrachloro, and pentachloro, R is methyl, ethyl, n-butyl, n-dodecyl and cyclohexyl, and R1R2N- is methylamido, ethylamido, isopropylamido, n-butylamido, n-dodecylamido, cyclohexylamido, dimethylamido, diethylamido and di-n-butylamido.  A list of additional products is given.
Patent GB-922516-A (GB)
Title: Improvements relating to cathode-ray tubes
Inventor: TURNER GEORGE CHRISTIE
IPC: H01J29/18
Filed: 1960-06-15
Abstract: 922,516. Luminescent screens. FERRANTI Ltd. June 8, 1961 [June 15, 1960], No. 20945/60. Class 39 (1). A cathode-ray tube luminescent screen includes a bombardmentinduced conductivity layer 4 on the gun side of the cathodoluminescent phosphor layer 3 and two outer conductive layers 2, 5 between which a low potential difference (layer 5 negative with respect to layer 2) is applied in order to increase the maximum brightness obtainable. It is stated a local current path established between the layers 2 and 5 introduces additional low velocity electrons into the phosphor layer 3. Layer 4 may be arsenic trisulphide, antimony trisulphide or zinc sulphide. Layer 2 is a transparent layer preferably of gold and layer 5 is preferably of aluminium. The phosphor layer 3 is preferably by evaporation or deposition from the vapour phase. Layer 5 is held at the anode potential of the tube.
Patent GB-686990-A (GB)
Title: Improvements in or relating to apparatus for developing photographic images
Inventor: LAMBERT GEORGERANDOLPH
IPC: G03D7/00
Filed: 1949-08-11
Abstract: 686,990. Photographic vapour-developing apparatus. OZALID CO., Ltd. Oct. 12, 1950 [Aug. 11, 1949], No. 20949/49. Class 98 (ii). Vapour producing means are controlled electrically by a detector device responsive to the passage of sensitive material to a development zone so that vapour production is active only when such material is passing. Spring contacts, so responsive, in an electrical circuit, may control an electro-magnetic regulating valve in the means. As shown in Fig. 1, ammonia solution from reservoir 32 passes by way of unit 33 comprising the valve to a distributer tube 23 where it is vaporized by electrical heating element 25, the tube and element being inside a chamber having a perforated wall 13 outside of which exposed material is traversed by rubber conveyer belt 15. In introduction into the nip between the conveyer belt 15 and the lower part of the perforated wall 13 the exposed material is caused to pass between two support members carrying electrically insulated spring contacts 42, 43, which are arranged in pairs, and are opened by the material; and when the contacts are open the valve in unit 33 is open to permit passage of the ammonia solution. Fig. 3 (not shown), indicates the circuit arrangements. A by-pass for unit 33 may provide a small uninterrupted supply of ammonia to maintain concentration in the chamber. A thermostatic switch may be included in the circuit to prevent opening of the electromagnetic valve until the chamber attains a particular temperature. Specifications 495,392 and 686,991, are referred to.
Patent GB-1123475-A (GB)
Title: Electrical connecting device
IPC: H01R13/64
Filed: 1966-05-12
Abstract: 1,123,475. Two-part couplings. ARROW ELECTRIC SWITCHES Ltd. 12 May, 1966 [10 Sept., 1965], No. 21030/66. Heading H2E. In a heavy current connector of the type having a receptacle comprising an insulating body 12, 30 having a central cavity formed with longitudinal channels to house contacts such as 16, the cavity opening being normally closed by a spring-biased closure member 40, and a plug comprising contact shoes such as 66 mounted on the periphery of a post 56 adapted to enter the cavity in the receptacle and to be locked in engagement upon relative rotation of the plug and receptacle, the outer face of the closure member 40 is recessed at 42 to form a peripheral rim 44 and the cross-section of the end 56e of the mating post 56 of the plug is correspondingly reduced so that the plug contacts have less travel before engaging the receptacle contacts as the closure member 40 is depressed while the rim 44 quenches arcing as the contacts separate. The receptacle has four or five contacts, e.g. 16, whioh are L- shaped, transversely arcuate and riveted to the circular base 12 of the insulating body and are located in recesses in member 30. The closure member 40 is slidable on a tubular pin 41 fixed to one side of the base 12 while a channelled post 15 on the other side carries four or five terminals e.g. 20, 21 and a combined wire terminal and earthing contact 25, 78 (as described in Specification 1,123,476) which slidably contacts a shell 10 housing the body 12. The plug is of generally similar construction but with the contacts mounted on lugs, one of which 68 is enlarged for polarization and may be employed as an earth contact.
Patent GB-670746-A (GB)
Title: Dyestuff intermediates of the pyrazolopyridine series
IPC: C07D471/04
Filed: 1949-08-12
Abstract: The invention comprises pyrazolo-pyridines of the formula <FORM:0670746/IV (b)/1> where R is aryl and their preparation from 3-amino-1-aryl-5-pyrazolones and dialkyl malonates in the presence of an alkali metal alkoxide.  The compounds may exist in tautomeric forms.  Examples describe the preparation of compounds where R is phenyl, p-chlorophenyl, p-tolyl, p-methoxyphenyl and 3 : 4-dichlorophenyl.ALSO:Pyrazolo-pyridines of the formula <FORM:0670746/IV (c)/1> (and tautomeric forms thereof) where R is aryl are intermediates for making azo and styryl dyestuffs.  Thus 2 - phenyl - 3 : 4 : 6 - triketo - 2 : 3 : 4 : 5 : 6 : 7 - hexahydro-pyrazolo-pyridine may be coupled with diazotized 4-chloroanthranilic acid to give a dyestuff which forms lakes fast to light and heat and non-migratory when used for colouring plastic materials.
Patent GB-1132398-A (GB)
Title: Improvements in or relating to chucks
IPC: B23B31/19
Filed: 1966-05-12
Abstract: 1,132,398. Chucks. ERICKSON TOOL CO. 12 May, 1966 [21 Jan., 1966], No. 21087/66. Heading B3B. A chuck comprises a housing 2 on which are mounted clamping fingers 3 comprising axially extending shanks 24 and radially extending jaws 25, the said fingers being mounted for axial movement towards and away from the housing and simultaneous radial swinging movement of the jaws into and out of position overlying a workpiece. The cup-shaped chuck housing 2 has an end plate 4 secured to the open end thereof by fasteners and provides the fluid pressure chamber of a piston and cylinder assembly 7. Air or hydraulic fluid is admitted into the chamber through a supply pipe 13 connected to the base of the housing and causes outward movement of the piston 14; a passage 17 admits air to the other end of the chamber to cause the piston to move in the opposite direction. A number of bronze bushings 22 are bolted to the end of the plate 4 each bushing having a longitudinal bore to receive the shank 24 of a clamp finger 3 and a transverse bore 39. A cam ball follower 36 is disposed in the socket 37 of a sleeve 38 contained within the transverse bore 39. The cam ball follower 36 extends into a spiral cam groove 40 formed in the wall of each shank 24 and is maintained in contact with the cam slot by a set screw 42 threaded into the outer end of the bore 39. An additional cam ball or tapered cam follower (45) (Fig. 4, not shown) engaging a second similar tapered cam groove in the shank may be provided. A spring loaded centring spindle 52 carried by the housing, centres the workpiece both during and prior to clamping. Locating pins 60a carried by the housing and eccentrically mounted direct the workpiece 50 towards the spindle 52.
Patent GB-922838-A (GB)
Title: Improvements relating to the production of tetrachloropalladates
Inventor: CLEMENTS FRANCIS SIDNEY
IPC: C01G55/00
Filed: 1959-06-19
Abstract: Tetrachloropalladates are obtained by reacting metallic palladium with one molecular proportion of chlorine and with a metal chloride in aqueous solution.  The reaction may be carried out (a) in two stages by reacting the chlorine with half the palladium and metal chloride to form a hexachloropalladate, and then converting this to the tetrachloropalladate by reaction with the further palladium and cloride solution, or (b) in one stage by reacting the chlorine with the whole of the palladium and chloride solution.  The temperature preferably is from 60 DEG  to 75 DEG C.  The rate of reaction is increased by the presence of soluble tetrachloropalladate or hexachloropalladate in the solution at the start of the reaction.  In examples sodium tetrachloropalladate is prepared by both methods. Lithium, calcium, barium, zinc, potassium and rubidium salts also may be prepared.
Patent GB-370290-A (GB)
Title: Improvements in demountable rims
IPC: B60B25/02
Filed: 1931-07-24
Abstract: 370,290. Vehicle wheels. KOREE, J. U., 331, Madison Avenue, New York, U.S.A. July 24, 1931, No. 21179. [Class 144 (ii).] A collapsable rim comprises sections 10, 13, 14, with two hinge-joints 11, 12. The section 14 is slotted to accommodate a pivotally-mounted lever 17, one end of which is adapted to engage beneath a raised portion 19 on the section 13 when the rim is in its expanded position, a lug 20 also engaging an aperture 21. A latch 23 is provided which locks the lever 17 in the expanded position of the rim.
Patent GB-1009903-A (GB)
Title: Belt grinding apparatus
IPC: F16H7/08
Filed: 1964-05-22
Abstract: 1,009,903. Grinding. CONDON-KING CO. Inc. May 22, 1964 [May 31, 1963; Feb. 17, 1964], No. 21206/64. Heading B3D. Grinding apparatus comprises drive means on a frame assembly for driving an endless abrasive belt 44, Fig. 5, and a grinding head assembly having an arm 54a adjustably attached between its ends to the frame assembly for angular adjustment of the arm relative to the assembly, and two contact wheels 56, 57, one at each end of the arm and positioned to have the belt track over the wheels, the wheels providing arcuate backing for use in grinding arcuate surfaces having curvatures corresponding to the curvatures of the contact wheels. The arm 54a is formed with a pivot 52a clampable to a bracket secured by bolts 48a to the frame 11, Fig. 2, of the apparatus, which has a horizontal base 10 and carries an electric motor driving a pulley engaged by the bolt and an idler pulley adjustable to vary the tension and tracking of the belt. The arm can be positioned so that one or other of the contact wheels is in the operative position according to the curvature of the workpiece, or can be disposed in a vertical position, the run of belt between the wheels being backed by a platen 54b on the arm for grinding flat work; in the alternative vertical position of the arm the belt is unsupported between the contact wheels. The sub assembly comprising the arm 54a and contact wheels 56, 57 may be replaced by a single contact wheel 52, Fig. 1, having a dead shaft 52a mounted in the bracket 46 in place of the pivot. The tension and tracking of the belt 44 is effected by the idler pulley 43, Fig. 3, which is mounted on a dead shaft 40 carried by a pivot 39, Fig. 3, on a bar 26 connected at its ends to a plate 23 and arm 24, the other ends of which are mounted on spaced pivots 22, 25 on the frame, the arrangement conforming to a parallel linkage which can be moved about the pivots 22, 25 to cause the idler pulley 43 to tension the belt; a resilient arm 31 mounted in the plate 23 is adapted to engage an arcuate ratchet 30 on the frame 11 to resiliently load the pulley 43. The dead shaft 40 carrying the pulley 43 is movable about the pivot 39 against a spring by axial adjustment of a screw 37 having a tapered end 36a engaging the end of the screw to control the tracking of the belt. A side plate 12, Fig. 2, of the frame can be swung about a pivot 13 to provide access to the pulleys. The frame also carries a guard 15 for the belt and a brake 20 for the motor. A rest 58 may be fitted into slots in the bracket 46.
Patent GB-873113-A (GB)
Title: Improvements in or relating to self-rising hinges
IPC: E05F1/06
Filed: 1958-07-03
Abstract: 873,113. Rising hinges. LINGWOOD, P. Sept. 30, 1959 [July 3, 1958], No. 21386/58. Class 65(2). A rising hinge of the type in which a hinge pin 2 (Fig. 2) is fixed in a bearing 1 in one hinge part and projects into a bearing in the other hinge part and in which the opposed faces of the bearings around the pin are shaped so that relative rotation of the parts about the pin produces relative axial movement is characterized in that the external peripheries of the bearings adjacent the opposed faces are greater than the peripheries of the remaining portions of the bearings. The bearings have helical faces 7 arranged so that only the outer marginal portions which have the largest diameter come into contact, and may be formed with flats 6 so that the door rises only during the first 90 degrees of opening and subsequently remains at the same level. In a modification, Fig. 3, a portion 9 of each tubular bearing 10 is partially cut from the remainder and formed with a greater diameter so that the rate of upward movement is greater during the first 45 degrees of opening and less over the range 45-180 degrees.
Patent GB-458698-A (GB)
Title: Improvements in and relating to carburettors for internal combustion engines
IPC: F02M7/12
Filed: 1935-07-27
Abstract: 458,698. Spray carburetters. MOORE INVENTIONS CORPORATION, Worcester, Massachusetts, U.S.A. July 27, 1935, No. 21410. Convention date, July 27, 1934. [Class 7 (iii)] Fuel is admitted from a float chamber to a fuel passage, opening into an intake passage on the engine side of a throttle valve, through a variable orifice disposed below the normal fuel level in the chamber, the area of the orifice being determined by the position of the throttle, and air bleeds into the fuel passage to modify the pressure differential acting on the orifice. The area of the fuel orifice varies directly with the throttle opening during a portion of the extent of opening of the latter and inversely during a later portion. Rigid with an air throttle valve 18 is a cam 16 shaped as shown in Fig. 2 to depress a fuel metering rod 12 during initial opening movement of the valve, then to allow a spring 14 to raise the rod when the throttle is at a point corresponding to transition from normal to full load running and finally to depress the rod again as the throttle becomes fully open. The end of the rod is bevelled at 20 to provide a single sector-shaped opening for the fuel which receives a primary charge of air past a valve 26 urged to close by a spring 33 but opened by suction applied through a passage 30 to the back of the valve. The rich mixture traverses a passage 24 to an outlet 34 in the throat of a Venturi 35. The maximum flow of fuel is controlled by a submerged nozzle 38 smaller than the passage 10 controlled by the rod 12. As the throttle opens, the spring 33 closes the valve 26 and a small quantity of air is then provided by a calibrated orifice 36 unless a reduction in the suction has allowed fuel to accumulate in a well portion 24u of the passage 24, the fuel then requiring to be lifted only the distance from the level 44 to the shoulder 24f of the passage 24. A throttle-operated pump 50 supplies fuel for acceleration through a tube 62 provided with air inlets 64 to prevent fuel from being drawn into an acceleration nozzle 58 by suction alone. The nozzle 58 sprays fuel on to the outlet pipe 34.
Patent GB-1112622-A (GB)
Title: Improvements in or relating to electromagnetic brakes
IPC: H02K7/102
Filed: 1965-05-20
Abstract: 1,112,622. Induction motors. MOULINEX S.A. 20 May, 1965 [22 May, 1964], No. 21429/65. Heading H2A. [Also in Division F2] An electromagnetic brake for an electric motor 12 comprises a braking surface 15 on a fan 14 fast with the rotating motor shaft, a brake shoe 16 on a pivoted lever 19 which is normally biased by a spring 29 to apply the shoe 16 against the surface 15 to brake the motor and an electromagnet, the movable M-shaped armature 17 of which is fixed to the lever 19. Energization of the electromagnet coil 23 in series with one of the motor windings moves the armature 17 against the stator 10 of the motor to complete the magnetic circuit of the electromagnet and pivots the lever 19 to release the shoe 16 from engagement with the surface 15. The electric motor windings are in two sections which may be connected in series or parallel so that the current in the electromagnet coil is the same whether the motor is supplied at 110 or 220 volts.
Patent GB-938588-A (GB)
Title: Apparatus for attaching reinforcements to nets
IPC: D04G1/00
Filed: 1960-06-20
Abstract: 938,588. Knot-tying devices. B. W. BOURWALL. June 20, 1960 [June 19, 1959], No. 21574/60. Class 74 (2). Apparatus adapted to attach a reinforcing cord to the edge of a net comprises a tubular, part-circular, vertically disposed needle containing a spool of yarn and being revoluable about the axis of the circle, a horizontal worksupporting table arranged substantially at the axis of rotation, a member arranged beneath the table and initially positioned within the path of rotation of the needle with at least three pins projecting horizontally therefrom, the arrangement being such that the needle initially makes a revolution to pass the yarn around the cord and through a pair of superposed edge meshes on the table and around the pins, and a second revolution to pass the yarn again around the cord and pins, said member then being moved outwardly and tilted and the needle then making a further revolution to pass the yarn through the two turns supported on the pins, and means for stripping and tightening the knot thus formed. A tubular, part-circular needle 2 has a point 19 at one end and contains a spool 8 of yarn 9 which passes through gripping jaws 29 and issues from a plug 11 at the other end, a compression spring 26 being interposed between the plug and jaws. The needle is mounted in a frame 1 to rotate in a vertical plane, and is driven by rollers 7. A work-supporting table 17 is arranged at the axis of rotation. A plate 12 formed with a notch 12a is arranged under the table and is initially positioned within the path of rotation of the needle, when three pins 16 project horizontally from plate 12. The latter is fixed to an axle 13 connected by gearing to an axle 15, and the axles are adapted to be shifted axially by a rod 14. A reinforcing cord 16 and a pair of adjacent superposed edge meshes 16b of a net 16a are laid on the table 17 and the needle is rotated once to carry the yarn 9 over the cord, through the meshes and around the pins 21. The needle is then rotated a second time to carry the yarn over the cord and around the pins. Plate 12 is then moved outwardly in the direction of the screw 22 and is tilted to the position shown in broken lines. The needle is again rotated once and passes through the notch 12a to carry the yarn through the two turns supported on the pins 16. Plate 12 is then moved to the vertical position and is also moved transversely in the direction of the arrow 26, when the knot formed by the final revolution of the needle is stripped from the pins 16 by a fixed plate 27, and is tightened by the expansion of the spring 26 which has been compressed during the rotation of the needle. Further adjacent pairs of edge meshes are similarly secured in succession to the cord 16.