baber/WOPTO huggingface dataset:
Patent GB-859313-A (GB)
Title: Improvements in and relating to spades and like hand tools
Inventor: PARSONS WILLIAM GURTEEN
IPC: A01B1/02
Filed: 1957-10-01
Abstract: 859,313. Hand tools. ELWELL Ltd., E. Oct. 1, 1958 [Oct. 1, 1957], No. 30734/57. Class 6(2). A hand tool such as a shovel, spade, fork, hoe or rake comprises a tubular steel shaft 1, and a work head 2 provided with a shank 5, the free end 6 of the shank being reduced to fit into the lower end of the shaft, and the two members being welded together at 7. The forked handle 8 of the tool may either be provided with a spigot 9 for fitting into the upper end of the shaft, or the spigot may be replaced by a socket for fitting over the tubular shaft, the joint between the two members being welded in both cases, or alternatively the upper end of the shaft may be split in half and the two halves forced apart to form forked supports for the grip 3.
Patent GB-874604-A (GB)
Title: Improvements in and relating to torque converters, particularly for the drive of machine tools
IPC: F16H61/56
Filed: 1959-09-09
Abstract: 874,604. Hydraulic torque converters. CALOW, T., [trading as CALOW & CO., TH.]. Sept. 9, 1959 [Sept. 11, 1958], No. 30758/59. Class 69 (2). The working conditions of a vaned torque converter are varied by at least two control means which are associated with at least one of the bladings of the converter and are adjustable independently of one another for varying the flow conditions in the converter. In a torque converter which is used in the drive to a machine tool and has pump vanes 3 driven from a shaft 2, turbine vanes 5 connected to an output shaft 4, and guide vanes 9 mounted to be pivotally adjusted by gearing 10, 11, the flow conditions at the trailing edges of the vanes are varied by the supply of a medium, which may be the same as, or different from, the medium in the working circuit and at a lower temperature, through pipes 12, 13, 14 to outlets 15, 16, 17 in the turbine, pump and guide vanes respectively. The flow conditions may also be varied at the trailing edges of the guide vanes by the supply of a medium through a shaped orifice 18 which can be rotated to vary the effect on the vanes. In other arrangements, the flow at the trailing edges of the vanes is varied by adjustment of a flap 26, Fig. 7, pivoted to the vane or at a point downstream of the vane, by a comb-like member which is freely pivoted and arranged to be held in operative position by an electromagnet, or by having orifices in the trailing edges connected to a suction device. The working space of the converter is connected by passages 20 to a storage space 22 so that, if the medium supplied to the trailing edges is air, it can pass out of the converter through a gap between the storage space and a cover 23. In a further embodiment, the pump vanes are mounted for pivotal movement and are adjustable by a piston-and-cylinder device controlling the axial movement of a helical gear engaging gears secured to the vanes.
Patent GB-772108-A (GB)
Title: New method for oxidising 3-chloro-allyl alcohol to -ß-chloro-acrolein
IPC: C06D7/00
Filed: 1955-10-27
Abstract: Beta-chloroacrolein is obtained by the oxidation of 3-chloroallyl alcohol with manganese dioxide in presence of alkali metal bisulphate and acid at 50-65 DEG  C. in an inert gas atmosphere.  Preferably the product is vacuum distilled as it is formed, and may be collected under water.  In an example, sodium bisulphate is produced in a flask from sodium sulphate and concentrated sulphuric acid, manganese dioxide is added and 3-chloroallyl alcohol together with 40 per cent sulphuric acid, the reaction taking place in a nitrogen atmosphere at 52 DEG  C. under a pressure progressively lowered from 540 to 180 mm. Hg.  The product, which decomposes instantaneously in contact with air, reacts with guanidine to give 2-amino-pyrimidine.
Patent GB-896430-A (GB)
Title: Bolt tensioning and nut-seating apparatus
IPC: B25B29/02
Filed: 1958-09-26
Abstract: 896,430. S.T. wrenches. BIACH, J. L. Sept. 26, 1958, No. 30813/58. Class 61. [Also in Group XXV] A nut 27 is tightened after pre-tensioning of bolt 25, by a wrench 42, Fig. 3. In a modification the nut 27, Fig. 5, is tightened by a wrench 49 having an inner profile to match the nut, and teeth 50 at one end. The wrench is rotated by a member 52. having teeth 53 which co-operate with teeth 50.
Patent GB-1020653-A (GB)
Title: Bubble tray provided with variable gas passages
IPC: B01D3/16
Filed: 1964-08-04
Abstract: 1,020,653. Contacting a gas with a liquid. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Aug. 4, 1964, No. 30828/64. Heading B1R. [Also in Division F2] A gas/liquid contact tray 1 has valve bodies such as 3 positioned above gas flow passages such as 2, each valve body having a guide member 4 with a slot 7, a rod 6 passing through the slots of a plurality of the guide members of adjacent valve bodies. In modifications the slot 7 may be arcuate and each valve body may cover or partly cover a number of gas flow passages. The bar 6 may be connected at one end to the valve body of one of the valve bodies coupled by the rod.
Patent GB-141015-A (GB)
Title: Improved method and apparatus for operating a combination of condenser and boiler feed pumps
IPC: F22D11/06
Filed: 1919-12-09
Abstract: 141,015. Akt.-Ges. Brown, Boveri, et Cie. April 1, 1919, [Convention date]. Feed-water, supplying.-Consists in a method of, and means for, controlling a set of air and feed pumps. The water of condensation from a surface condenser flows into a tank e from which the wet air pump m draws. The delivery from the pump m is fed by a pump n to the boilers, or, when the feed water is more than the boilers require, the surplus delivery passes by a pipe g and float-controlled valve f to a raised tank c. When the water in the tank e fall s below a predetermined level, the float a opens a valve d to allow the water in the tank c to pass into the tank e. In a modification, a single float is used to control valves d, f, one being opened as the other is closed. Centrifugal pumps are shown, but other types of pump may be used.
Patent GB-817761-A (GB)
Title: Improvements in or relating to the production of periodic cipher strips
IPC: H04L9/18
Filed: 1955-10-28
Abstract: 817,761. Secret type-printing telegraphy. HELL, R. Oct. 28, 1955 [Jan. 26, 1955], No. 30914/55. Class 40 (3). In an arrangement for producing ar extended cipher control strip from an existing strip carrying a random sequence of code combinations of binary elements, the latter are recorded on a number of storage devices equal to the number of elements in a code group of different capacity, the largest store being capable of storing a number of elements equal to the number of code groups in the existing cipher strip, and the numbers of elements stored in the devices being prime to one another, and stored elements from the respective devices are read off and simultaneously presented to a discriminating circuit which, in response to the detection of a predetermined code combination, controls a device to record on a tape or strip, forming the extended cipher strip, a code combination derived from an arbitrary sequence of combinations of binary elements which are applied to the recording apparatus in the same time sequence as the elements recorded from the original cipher strip are presented to the discriminating device. The pulses derived from an intermittently fed cipher strip 21 are applied by an amplifier 23 as D.C. or A.C. pulses to recording heads 24 ... 28 co-operating with a ferro-magnetic layer on the circumference of the discs 1 ... 5. The disc 1 has a number of circumferential divisions or recording positions corresponding to the number of code groups in the strip 21, and the numbers of the divisions in the discs 2-5 are progressively less, all the numbers being prime to one another. The ratios of the gear-wheels 7 ... 11 and 12 ... 16 are such that the discs 1 ... 5 simultaneously rotate through an equal number of element divisions. Impulses simultaneously detected by pick-ups 29 ... 33 are fed to a discriminator device 34 arranged to respond solely to a predetermined combination to provide a triggering pulse to a device 39 which punches a tape 40 in accordance with a five-unit combination derived by feelers 38 from discs 35 rotated by gears 36, 37 from the rotatable shaft 17. The transverse holes or recordings on the discs 35 correspond to the five-unit code and the discs 35 are moved from one position to the next in a time equal to that taken by an element on the discs 1 ... 5 to pass a pick-up or recording head. The perforated cipher control strip 41 and the strip 44 perforated according to the plain text of the message are fed simultaneously to a twin head 42 producing an output perforated strip corresponding to the multiplicative combination of the elements represented by the perforations appearing on the two strips 41, 44.
Patent GB-849809-A (GB)
Title: Electromagnetic means for controlling a vehicle variable-speed power transmission mechanism
Inventor: BARLING KENNETH RAYMOND
Filed: 1955-10-29
Abstract: 849,809. Change-speed control. LUCAS (INDUSTRIES) Ltd., J. Oct. 17, 1956 [Oct. 29, 1955], No. 30994/55. Class 80 (2). An electromagnetic control for one or more ratios of a vehicle change-speed gear of the planetary type or one controlled by clutches, comprises an electromagnet a for introducing each ratio, as by actuating an hydraulic valve, and energised through contacts d closed by a relay c energised under control of a vehicledriven centrifugal switch e, together with series and parallel switches #<SP>1</SP>, #<SP>2</SP> and d3, #<SP>3</SP> respectively, all actuated, as described below, by the usual accelerator pedal, a by-pass shunt circuit being provided to maintain energisation of the relay c irrespective of the condition of the series switches #<SP>1</SP>, #<SP>2</SP>. The circuit is initiated by a further switch g closed directly by the driver or by movement of a gear shift level. With the accelerator released and the vehicle at rest, switches #<SP>1</SP>, #<SP>3</SP>, and f<SP>4</SP> are closed, e and #<SP>2</SP> open. Two conditions of operation are provided; one for accelerating between closed and half throttle, the other between half and full throttle. For the first condition, closed to half throttle, initial depression of the accelerator opens #<SP>3</SP> and closes #<SP>2</SP>; so that when at a predetermined vehicle speed, the centrifugal switch e closes, the shift relay c and hence the shift magnet a are immediately energised. At the same time the relay contacts d complete the shunt circuit around the switches #<SP>1</SP>, #<SP>2</SP> through the switch #<SP>4</SP>, so that if the accelerator is fully released, opening the switch #<SP>2</SP> and closing #<SP>3</SP>, the relay c will remain energised through the switches #<SP>4</SP>, #<SP>3</SP>, even if the centrifugal switch e opens, but if the accelerator is not released, the switch #<SP>3</SP> will remain open and opening of the centrifugal switch e will de-energise the relay c. Under the second condition of acceleration, half to full throttle, the accelerator opens the switch #<SP>1</SP> at half throttle, so that the centrifugal switch e is ineffective to energise the shiftrelay c until the driver momentarily releases the accelerator sufficiently to close the switch f whereupon the relay is energised. Under both conditions, the shift-relay c can be de-energised by full travel of the accelerator, which opens the switch f<SP>4</SP>, breaking the shunt circuit, whilst the switch f<SP>1</SP>, opening at half throttle, breaks the circuit of the centrifugal switch e. The half throttle switch f<SP>1</SP> may alternatively be operated by engine-manifold depression.
Patent GB-519097-A (GB)
Title: Improvements in or relating to high frequency electric induction melting furnaces
IPC: H05B6/28
Filed: 1938-10-27
Abstract: 519,097. Electric induction furnaces. KOHLEUND EISENFORSCHUNG GES. Oct. 27, 1938, No. 31049. Convention date, Nov. 19, 1937. [Class 39 (iii)] [Also in Group XIII] A high frequency electric induction furnace 1 has a hollow electric heating coil 2, embedded in its wall, through which cooling water is passed. On an excessive rise of temperature differential thermocouples 6, in the cooling water inlet and 'exit respectively, operate an electromagnet 7 to close a switch 8 in the circuit of a second electromagnet which releases a spring controlled trip lever to open the switch 5 of the electric supply to the coil 2. Alternatively, thermometers, resistance coils or bimetallic strips may. replace the thermocouples. In the Specification as open to inspection under Sect. 91 is described an arrangement in which a single thermocouple, only, is provided in the exit from the cooling water tube. This subject-matter does not appear in the Specification as accepted.
Patent GB-1014685-A (GB)
Title: Improvements in or relating to hypodermic injection apparatus
Inventor: CLEMENT GEORGE HERBERT
IPC: A61M5/20
Filed: 1962-08-14
Abstract: 1014685 Needleless injection devices NATIONAL RESEARCH DEVELOPMENT CORPORATION 14 Nov 1963 [14 Aug 1962] 31096/62 Headings F1A A1A7 A1B8B A1C1 A3F1A A4L A454 and A4Y In a needleless injection device, the propulsive force is provided by a spring-loaded plunger assembly 4, the plunger assembly being held in a restrained position by a sear 17 of a release mechanism, the sear 17 being pivoted about a point 21 behind its point of contact with the plunger assembly, whereby the arc of movement of the point of contact of the sear when the sear is free to move under the force of the plunger assembly is in a partly forward and partly sideways direction out of the path of the plunger assembly. The device comprises a chamber 3 for holding medicament, connected to nozzle 10 with orifice 11, through non-return value 14, and to medicament supply (not shown) through non-return valve 15, and plunger 5 slidably mounted in chamber 3 and tube 7 and urged forward by spring 8, the tube 7 having projections 6 which can be engaged by a  recocking device. The release mechanism com-  prises sear 17 having roller 16, which is urged into contact with the plunger assembly by spring 18, and trigger 19 urged into contact with sear 17 by spring 20. In use, trigger 19 is pressed and moves out of contact with sear 17, which is then pushed forward and sidewards by the power of the plunger assembly. Plunger 5 moves forwards and medicament is ejected from chamber 3 via passage 9,  valve 14 and nozzle 10 out of orifice 11. The device may be recocked by a device comprising a cylindrical body 30 having chambers 32, 33 and  34. Mounted in chamber 34 is piston 37 into  which is screwed shaft 46. Slidably mounted on shaft 46 is mount 50 having flexible prongs 51, 52. In recocking, the injection device is rested on  flange 35 of chamber 32, and piston 37 normally urged into a forward position by spring 38, is withdrawn by pressing lever 45. The mount 50 is initially prevented from moving by the action of spring 55, such that shaft head 47 moves through prong heads 53, 54, forcing them outwards. The heads 53, 54 come into contact with the injection device and, at this stage, the mount 50 begins to move rearwards with the piston 37, such that heads 53, 54 contact the projections 6 of the injection device and hence pull the plunger assembly rearwards till it is in a position to be held by the release mechanism. The pressure on lever 45 is then released and the piston 37, mount 50 and prongs 51, 52 return to their original positions under the action of spring 38, such that the injection may be  removed from the recocking device.
Patent GB-687031-A (GB)
Title: Improvements relating to mechanical dust separators
IPC: B01D45/14
Filed: 1950-12-21
Abstract: 687,031. Centrifugal separators. AKT.- GES. A. HERING. Dec. 21, 1950 [Aug. 28, 1950], No. 31119/50. Class 23 In a dust separator comprising a bladed rotor 50 mounted in a casing 16, the edges of the blades 2 remote from the casing inlet 1 are oblique to the axis and rolled over in the direction of rotation to form swirl passages 15 which have closed inner ends and outer ends which project into a dustcollecting chamber 51. Dust collecting on the leading faces of the blades passes into the swirl passages to be discharged to the dust-collecting chamber. Within the collecting chamber dust passes through slits 25 in a cylindrical partition 24 to a hopper 19 having a slide valve 20. The swirl passages may be tapered, inclined to the plane of the blades, or offset from the plane of the blades. Baffle plates attached to the trailing face of a blade and stopping short of the following blade may be fitted to direct dust to the entry slot of the swirl passage on the following blade. In a modification, Figs. 10 ... 12 (not shown), the invention is applied to a rotor of the axial,- flow type.
Patent GB-431371-A (GB)
Title: Improvements in or relating to telescopes
IPC: G02B23/10
Filed: 1934-10-30
Abstract: 431,371. Telescopes. AKT.-GES. C. P. GOERZ OPTISCHE ANSTALT, Pressburg, Bratislava, Czecho Slovakia, and MAURER, M., Klosterneuburg, near Vienna. Oct. 30, 1934, No. 31129. [Class 97 (i)] An attachment for a telescope, to enable an aiming mark to be projected into the field of view, comprises a casing placed on or in the objective tube and containing the optical elements necessary for projecting the mark into the image plane of the telescope. In the form shown, the telescope comprises an objective 2, reversing prism 3 and eyepiece 4. The attachment 5 has an extension 5a passing over the objective tube 1, and contains a partially reflecting prism 6, a projection objective 7, and an aiming mark Z on a plate 8, the mark being in the focal plane of the objective 7. The mounting 9 for the plate 8 is preferably rotatable about the axis of the tube 5, and may be provided with a scale.
Patent GB-805499-A (GB)
Title: Improvements relating to the manufacture of fire resistant fabrics
Inventor: HALLAM WILLIAM GORDON
IPC: D06M15/244
Filed: 1955-11-01
Abstract: Aqueous dispersions for rendering textile material fireproof comprise polyvinyl chloride, plasticized with tritolyl phosphate, and ammonium phosphate with or without the addition of antimony oxide.  In an example the dispersion consists of paste grade polyvinyl chloride, vinyl chloride and vinylidene chloride copolymer, tritolyl phosphate, antimony oxide, white lead and tritolyl phosphate paste, ammonium phosphate, whiting, colouring matter and water.
Patent GB-978396-A (GB)
Title: Flexible diaphragms
IPC: F04B43/00
Filed: 1963-08-07
Abstract: 978,396. Diaphragm pistons. GENERAL MOTORS CORPORATION. Aug. 7, 1963 [Sept. 19, 1962], No. 31161/63. Heading F2T. [Also in Divisions B2, F1 and G1] A flexible diaphragm for a fuel pump valve or gauge comprises a layer of flexible foamed elastomeric material covered on each side with a thin layer of flexible non-porous liquidimpervious elastomeric material. In a conventional fuel pump, plates 14, 16, Fig. 1, are clamped between a nut and an annular shoulder on rod 12 to form a seal between the plates 14, 16, rod 12 and the diaphragm 10 which consists of a long-staple cotton layer 20, Fig. 2, sandwiched between and bonded to layers 22, 24 of closed cell or foamed butadiene-acrylonitrile elastomer bonded to thin outer layers of liquid-impervious butadiene-acrylonitrile elastomer. The diaphragm material is made by calendering foam stock on to both sides of light cotton duck cloth and curing between heated plates for 30 minutes at 320 F., under pressure applied by weight of the upper plate, the liquidimpervious layers being formed by the curing process. The layers may be of natural or synthetic rubber.
Patent GB-1135330-A (GB)
Title: Improvements in or relating to an apparatus for augmenting blood circulation
IPC: A61H15/00
Filed: 1966-07-12
Abstract: 1,135,330. Valves. N. A. MACLEOD. 12 July, 1966 [14 July, 1965], No. 31215/66. Heading F2V. [Also in Division A5] A valve for insertion into a body artery 88 to maintain one-way flow may be of a synthetic resin material and may comprise a ball member 100 within a casing 95 having four ribs 99 which space the ball member from the internal surface of the casing except at the valve seat end 101.
Patent GB-448550-A (GB)
Title: Improvements in tappets for cam-operated reciprocating parts
IPC: F01L1/14
Filed: 1934-10-31
Abstract: 448,550. Cams and tappets. AUTOMOTIVE PRODUCTS CO., Ltd., Brock House, Langham Street, and TRAPP, G. J., 105, Aylward Road, Merton Park, both in London. Oct. 31, 1934, No. 31227. [Class 80 (iii)] A cam-follower or tappet comprises a housing and a substantially cylindrical roll supported on a pair of spaced circumferential rows of rollers, the roll and the rows of rollers being contained within the housing, the cam or equivalent being arranged to coact with the outer curved surface of the roll between the rows of rollers. A cam 2 integral with a shaft 1 engages a follower consisting of a roll 3 mounted for rotation in a rectangular block 5 sliding within a guide 6, the block giving movement to a push-rod 4 such as the plunger of a fuelinjection pump. A bore 7 in the block is exposed by cutting a slot 8 in the face adjacent the cam which is thus able to act upon the roll which is of a length approximately the same as, and of a diameter only slightly less than, that of the bore. Adjacent its ends the roll is grooved to form races for ball or roller bearings 10 which are prevented by flanges 17 from bearing against the guide 6. In a modification, the bore is recessed to accommodate the roller bearings, the roll being of the same diameter throughout. In a further modification, Fig. 4, the roll 3 is shorter than the block, a disc 14 being disposed at each end, each disc having a central depression and aperture to receive the head and shank of a rivet 15. In a still further modification, the roll is provided at each end with a collet, preferably forced into position.
Patent GB-1283657-A (GB)
Title: Improvements in forming metal oxide coatings on flat glass
IPC: C03C17/00
Filed: 1970-06-29
Abstract: 1283657 Coating glass during annealing NIPPON SHEET GLASS CO Ltd 29 June 1970 [30 June 1969] 31317/70 Headings C1A C1M and C1N A process for forming a coating of one or more metal oxides on the surface of flat glass, comprises transferring flat glass 13 maintained at a high temperature towards and through an annealing lehr 14, spraying from at least one nozzle 21 a solution of a metal compound convertible to the metal oxide on pyrolysis uniformly on the surface of the flat glass at a point where the temperature of the flat glass is in the range 400-750‹ C., the spray being confined within a spray chamber 18 having the nozzle 21 therein and being defined by partition walls 17, removing waste gas from the spray by suction exhaust means 22, and continuously advancing the coated flat glass through the lehr 14. The nozzle 21 forms part of a spray gun 20 which is mounted on a vehicle 23 adapted to reciprocate in a direction at right-angles to the direction of glass movement. A pair of draft cones 22 extend on either side of the spray gun 20, each being provided with a suction hole 39 to remove waste spray gas. The chamber 18 is sealed off by glass-wool rods 19. Examples of metal compounds used include acetyl acetonate complex salts of cobalt, iron, chromium, nickel, tin, titanium, manganese, calcium and magnesium; cyclopentadienyl compounds of these metals; dibutyl tin acetate, dimethyl tin dipropionate and titanic acid ester. Methanol, benzene and toluene may be used as solvents.