baber/WOPTO huggingface dataset:
Patent GB-530823-A (GB)
Title: Improvements in or relating to propeller blades
IPC: B21K3/04
Filed: 1939-07-04
Abstract: 530,823. Screw propellers. ALUMINUM CO., OF AMERICA. July 4, 1939, No. 19455. Convention date, July 18, 1938. [Class 114] [Also in Group XXII] In a process of making metal propeller blades an elongated blank is formed, e.g. by forging, with one or a pair of radially projecting fins through at least a portion of the length, is pierced to form an internal opening and is then flattened by pressure to form the fin or fins into one or both edges of the blade, these edges being thicker than the faces of the blade. A cylindrical blank of aluminium alloy or other metal or alloy capable of being forged, which may be produced by rolling or extrusion, is made conical at 3, Fig. 2, for a portion of its length by a series of one-way rolling passes. The blank is next rolled, pressed or hammerforged in dies 8, 9, Fig. 24, to draw out part of the tapered portion into fins 5, 6 having roughly the required spiral shape of the finished blade and adapted to form the trailing and leading edges respectively. The longitudinal flow lines of the metal are thus spread out into the fins without being broken. A hole is then formed in the blank, parallel at 13, Fig. 8 and tapering at 14, either by drilling or by piercing and then finish boring, the blank being made smaller in this case to allow for enlargement when piercing. The shank 4 is next swaged between dies or otherwise worked to thicken the walls thereof at the butt end and produce a tapered hole therein of smaller diameter, the dies being arranged to make the shank oval in two directions at right angles alternately. The shank is next machined and the end upset to form a securing flange thereon and before or after this operation the blade is placed in pressing or forging dies to flatten the conical portion 7 into the faces 22, 23, Fig. 29, merging into the solid leading and trailing edges 21, 20, formed from the fins 5, 6. The interior of the blade may be filled with deformable material during the pressing, such as sand or compressed gas. The blade is then trimmed, sized and heat-treated and is finished by machining, grinding and polishing and mounted on a hub.
Patent GB-599675-A (GB)
Title: Improvements in or relating to anti-glare, heat-reflecting light filters
IPC: C03C17/10
Filed: 1943-11-22
Abstract: An anti-glare, heat-reflecting light filter having a high reflectivity for infra-red radiation and a high absorption for ultra-violet radiation combined with a transmittancy in at least part of the visible spectrum consists of a glass coated on one side with a uniform thin film of precious metal by applying, e.g. by spinning, to the surface of the glass a solution of at least one precious metal resinate or sulphoresinate in organic solvents, allowing the solvent to evaporate and then heating the glass at a temperature sufficient to decompose the metal compound or compounds and to burn away all organic matter.  The coating solution may also contain one or more resinates of bismuth, tin, uranium, nickel, chromium or calcium so that the content of the oxide of such metals in the final metal film does not exceed by 10 per cent the weight of such precious metal, which may be gold, silver, platinum, rhodium or palladium or mixtures of these metals.  A neutral light filter may be produced by coating a sheet of glass with a film of gold and palladium or gold and platinum in the manner described above.  The term glass covers ordinary glass, mica, fused silica and any other transparent material which will withstand temperatures of 400 DEG  C. upwards.
Patent GB-498925-A (GB)
Title: Improvements in and relating to frictional motion-controlling mechanism
IPC: F16D13/75
Filed: 1937-07-14
Abstract: 498,925. Brakes. FITZPATRICK, H. J. (Clearing Machine Corporation) July 14, 1937 No. 19489. [Class 103 (i)] [Also in Group XXIV] In a disc brake, an adjustable connection between the presser disc 63 and its actuating member, rotating with the disc, comprises a ring 69 adjustably threaded on the actuating member and held against the disc by means of a retaining ring 72 secured to the disc by screws 73 so as to allow free rotation of the ring 69 relatively to the disc, the ring 69 being locked in adjusted position by means of a plunger 79 carried by the actuating member and urged radially outwards by a spring into engagement with one of a number of slots 75 in the ring 69. By inserting a tool into the engaged slot, the plunger may be depressed and the ring 69 rotated to adjust for wear. Both a clutch and a brake are shown, with common actuating means comprising a pneumatically-operated annular piston 39 which is integral with a ring 40, on which a clutch adjusting ring 52 is threaded, and which is connected through rods 84 to a ring 77 on which the brake adjusting ring 69 is threaded. The brake comprises a faced disc 86 which is formed in sections united by plates 34, is splined in a member 87 secured to a fixed frame 89, and is interposed between a disc 64 secured to the shaft 16 and the disc 63, the latter being splined on the hub of the disc 64. The piston 39 is slidable in an annular cylinder 37a secured by its hub 38 to the shaft 16. Springs 83 arranged on the rods 84 between the cylinder 37a and the ring 77 normally apply the brake and disengage the clutch. On supplying compressed air to the cylinder, through passages 49, 51 in the shaft 16 and hub 38, the clutch is engaged and the brake released. The disc 64 is formed with fan blades to produce air currents. Specification 498,993 is referred to.
Patent GB-1040473-A (GB)
Title: Improvements in or relating to plough bodies
IPC: A01B15/02
Filed: 1963-05-14
Abstract: 1,040,473. Agricultural implements. PATENT CONCERN N.V. May 14, 1963 [May 29, 1962], No. 19489/65. Divided out of 1.040,471. Heading A1B. The subject matter of this Specification is the same as that of Specification 1040471 but the claims differ.
Patent GB-919929-A (GB)
Title: Microwave circulator
IPC: H01P1/387
Filed: 1961-05-30
Abstract: 919,929. Microwave circulators. BENDIX CORPORATION. May 30, 1961 [June 10, 1960], No. 19550/61. Class 40 (8). A Y-circulator comprises a Y-shaped strip conductor 56 located between ground planes provided by a metallic casing 20, gyromagnetic elements 66, 68, of e.g. yttrium iron garnet, being located on either side of the junction 64. For matching purposes, dielectric elements 72 are located on either side of each arm and the arms are reduced in width in the region of the gyromagnetic element. Insertion of dielectric wafers 70 between the ground planes and the YIG elements also improves the impedance matching. The elements are polarized by means of two pairs of permanent ceramic magnets 32, 34 associated with soft iron polepieces 36, 37. The direction of circulation is reversed by turning the device over and reconnecting the terminals.
Patent GB-1302560-A (GB)
IPC: C22C38/52
Filed: 1970-04-23
Abstract: 1302560 Alloy ISUZU MOTORS Ltd 23 April 1970 [23 April 1969] 19583/70 Heading C7A An alloy suitable for use in diesel engines consists in per cent by weight of:
Patent GB-330785-A (GB)
Title: Improved neck and lid closure for bottles, cans or like containers
IPC: B65D43/02
Filed: 1929-06-26
Abstract: 330,785. Grant &. Co., Ltd., H., and O'Brien, R. M. June 26, 1929. Lever lids. - A closure for bottles, cams, &c. comprises a neck portion 2 with a lip 3 of inverted-U cross-section, having an unobstructed mouth, and a lid 5 with a flange 7 of the same crosssection fitting thereon by a double friction grip. the edges of the respective limbs terminating in beads 4, 8 providing an intermediate space for the insertion of an opening lever. The lid may be sealed in position by a sealing ring, capsules. clips, or spring catches.
Patent GB-839286-A (GB)
Title: Improvements in or relating to terminal pin assemblies
IPC: H05B3/06
Filed: 1958-06-19
Abstract: 839,286. Electric heating elements. NATIONAL PRESTO INDUSTRIES Inc. June 19, 1958 [Aug. 7, 19571, No. 19681/58. Class 39(3) [Also in Group XXXVII The ends of a tubular heating element 10 for electrical cooking utensils are proofed against the entry of water during washing up by discs 17, 18 of silicone rubber or other heat resisting insulating material, the discs seating in slightly smaller recesses in a ceramic washer 16. The discs are squeezed by pressure of terminal member 11 so that disc 17 is turned about the end 25 of heating element 10 and the material of both discs is forced into the annular spaces between the threaded rod 14, terminal member 11 and washer 16. The terminal members 11 may be arranged to plug into a power socket or may be replaced by lock nuts.
Patent GB-1428036-A (GB)
Title: Trihaloneopentyl oxyalkylene compounds containing phosphorus
IPC: C08G65/327
Filed: 1973-04-25
Abstract: 1428036 Flame retardant phosphate esters DOW CHEMICAL CO 25 April 1973 19693/73 Heading C2P [Also in Division C3] Novel compounds of Formula I where R and R<SP>1</SP> are, independently for each of the n units, H or CH 3  provided that R and R<SP>1</SP> are not both CH 3  in any one unit and n is an integer from 1 to 10 may be prepared by reacting tribromoneopentyl alcohol with ethylene or propylene oxide or a mixture thereof in proportions so that the alcohol contains 1 to 10 oxyalkylene units in the appropriate arrangement and subsequently reacting the product with POCl 3 . The compounds of Formula I may be used as fire retardants for polyvinyl chloride and latex resins.
Patent GB-680379-A (GB)
Title: Improvements in die-casting machines, injection moulding or other like machines
IPC: B29C45/82
Filed: 1950-08-08
Abstract: 680,379. Injection - moulding machines. SAUTER, H., HAHN, W., (trading as HAHN & KOLB). Aug. 8, 1950 [Oct. 1, 1948], No. 19696/50. Class 87 (ii). [Also in Groups XXII and XXVI] An injection moulding or like machine having two double acting pistons, one to move the injection plunger and the other the movable die part, is characterised in that the pressure spaces on one side of the two pistons are interconnected and connected to the pressure space of an operating piston and the pressure spaces on the other side are interconnected and connected to a pressure accumulator. The pressure areas in the two pistons are such that the die closes before injection and does not open until the plunger has returned. In the machine shown a friction wheel 6 drives a flywheel 5 with a screwed shaft 4 which is thus moved down through a fixed nut 9. When a head 7 engages a stop 8 of a piston 3 this also moves down and applies pressure to liquid in the spaces 15, 25. Annular spaces 10, 14 are under liquid pressure from an accumulator 24. Owing to the relative active areas of the pistons 2, 13, the former is moved first to close the die 21, 22 and then the plunger 16 moves to inject the material in the container 17 into the die. A limit switch may be used to cut off the motor driving the friction wheel 6 when this action has been completed. 18 is a heater for plastic material.
Patent GB-775852-A (GB)
Title: Magnetostriction vibrator construction for directional transducers
Inventor: CAMP LEON WALTON
IPC: B06B1/08
Filed: 1955-07-07
Abstract: 775,852. Acoustic directional apparatus. BENDIX AVIATION CORPORATION. July 7, 1955, No. 19704/55. Class 118 (2). [Also in Group XXXIX] In a directional transducer for subaqueous signalling consisting of an array of magnetostrictive vibrator units, shading is obtained by making the cores of all the units of the same dimensions and the windings of the same number of turns but varying the amount of magnetostrictive material in the individual cores. A typical core (Fig. 3) is formed of aluminium laminations 16a and nickel laminaations 16n, all having the same lateral dimensions. All the nickel laminations 16n are bonded together, and all the aluminium laminations in each of the two groups 16a are bonded together, but the nickel laminations are not bonded to the aluminium laminations. The complete transducer (Fig. 1) consists of a cupshaped case 10, the open end of which is closed by a rubber window 11 to which are bonded the magnetostrictive units 13. To achieve shading the four central units 13a (Fig. 2), have cores formed wholly of nickel; the proportion of aluminium laminations increasing progressively units 13b, 13c, 13d and 13e. A cylindrical transducer is described with reference to Figs. 4, 5 and 6 (not shown), in which the units are arranged in vertical rows facing radially outwards from the axis of the cylinder. If all the rows are energized the transducer is omnidirectional in the horizontal plane. Selective energization of one or more rows gives a desired directional characteristic.
Patent GB-883438-A (GB)
Title: Improvements in or relating to tank contents indicators
Inventor: KERSHAW TOM
IPC: G01F23/00
Filed: 1958-06-20
Abstract: 883,438. Control of two motors. PARKINSON COWAN Ltd. June 12, 1959 [June 20, 1958], No. 19782/58. Class 38 (3). [Also in Group XIX] An arrangement for indicating the quantity of liquid in a tank comprises a counter operated additively by liquid flow into the tank and subtractively by liquid flow out of the tank, and a detector actuated by the liquid surface when it reaches a predetermined level to reset the counter to a value corresponding to the predetermined level. To supply fluid to the tank, an " open " button is depressed to energize a relay RA which holds over its contact RA2 and whose contact RA1 closes to open a valve " in " in the tank supply line. A contact RA3 opens to inhibit operation of the outgoing valve, and a contact RA4 closes to enable an impulsing contact " TIN " operated by a meter in the liquid supply line, to supply pulses to a relay RB, the periodic closure of whose contact RB1 drives an impulse motor 15, Figs. 2 and 3. The motor 15 is adapted to drive a numeral wheel counter, Fig. 2, additively via gearing 14, 13. A similar arrangement is provided for registering fluid flow out of the tank, a motor 16 driving the counter subtractively. Resetting.-To obviate cumulative errors due to inaccuracies in the meters, means are provided to reset the counter automatically to a predetermined reading whenever the liquid surface reaches a predetermined level. A level detector on actuation, closes a contact TEK1 to energize a relay RE thereby energizing a relay RF over a contact RE1. Contacts RF1, RF2 then open to prevent impulses from the meters from reaching the motors 15, 16 during resetting and a contact RF3 closes to allow pulses from a motor-driven contact M1 to be supplied to the motor 15 or 16 depending on the state of contacts 23-26 which are operated by cams on the numeral wheels 10-12, Fig. 2. The contact 23 controlled by the units wheel 10 is normally closed but is opened when the units digit of the predetermined setting is showing. The contact 24 is similarly controlled by the tens wheel 11. Contacts 25, 26 are controlled by the hundreds wheel 12, the contact 25 being closed only when digits lower than the predetermined hundreds digit are showing and the contact 26 being closed only when the required digit or higher digits are showing. Thus, assuming that the error is less than 100, the counter is driven forwardly or reversely to the required setting, when the opening of both contacts 23, 24, Fig. 3, cuts-off the driving impulses. The time relay RE de-energizes after the maximum resetting time is passed.
Patent GB-530962-A (GB)
Title: Improvements in sources of light for projection apparatus
IPC: G03B21/20
Filed: 1939-07-07
Abstract: 530,962. Luminescent material. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges fur Elektrische Gluhlampen). July 7, 1939, No. 19863. [Class 39 (i)] In optical projection apparatus wherein a high pressure metal vapour electric discharge lamp is the main source of light the red deficiency of this source is compensated by the use of luminescent material, which is excited by the H.P.M.V. lamp to emit light with a red component, optical means being used to (1) concentrate light from the lamp on the material and (ii) form a real image of the luminescent material so excited substantially coincident with the discharge column of the lamp. The same optical means may be used for the two functions ; this may be a lens or a mirror. The luminescent material may be rhodamin, zinc cadmium sulphide activated by copper, zinc beryllium silicate activated by manganese, cadmium silicate or borate, or the substance described in Specification 495,706, [Group XX]. The luminescent material may also emit blue light. It may be cooled by air or water circulation, or by suspending it in a cooling liquid ; a water screen may be placed between the lamp and luminescent material. Specifications 490,281 and 490,821, [Group XX], also are referred to.
Patent GB-147828-A (GB)
Title: Improvements in and relating to oil burners
IPC: F23D11/04
Filed: 1920-07-09
Abstract: 147,828. Ray, W. R. May 8, 1916, [Convention date]. Spray burners.-An oil burner comprises a motor A mounted on a hollow shaft 2 which causes rotation of a centrifugal fan B and oil atomizer 3. Oil is delivered to the atomizer 3 by a stationary pipe 3<1>, which is secured in a sleeve 8, connected by arms 7 to a cap-like member 6 of the motor. A screwed plug 16 at the outer end of extension 8 may be removed for cleaning the pipe 3<1>, which is centred in the shaft 2 by screws 14 in a projection 13 of the member 6. The oil passing through the motor shaft is heated thereby, and the air by which the oil is sprayed is heated, and the motor simultaneously cooled,.by the incoming air being directed by a casing 17 against the motor. Specification 147,827 is referred to.
Patent GB-1058214-A (GB)
Title: Process for the production of spirocyclic phosphoric acid esters
Inventor: GRABHOFER HERBERT
IPC: C07F9/6574
Filed: 1964-05-13
Abstract: A spirocyclic pentaerythritol ester of phosphoric acid is obtained by heating under reduced pressure of up to 250 mm. of mercury a mixture of 1 mol of a pentaerythritol-bis-phosphoric acid monochloride with substantially 2 moles of a monohydric alcohol or phenol or with 1 to 2 moles of a dihydric alcohol, said alcohol or phenol having a boiling point above 100 DEG  C. at normal atmospheric pressure, to a temperature between 50 DEG  and 250 DEG  C. in the absence of solvents and acid binding agents and continuously removing the gaseous HCl which is set free in the course of the reaction. Suitable alcohols or phenols include those of the general formula R-(O-A-)n-OH wherein R is an alkyl radical having at least 5 C atoms, a cycloaliphatic group, an aralkyl group, e.g. benzyl or phenylethyl, an aromatic radical, e.g. phenyl or substituted phenyl, or is a hydrogen atom if n is 1 or higher integer, A is a C2-C6 alkylene radical and n is 0 or an integer equal to or greater than 1, e.g. 4 to 50. When R is a substituted phenyl group the substituent may suitably be an alkyl group having up to 20 carbon atoms.  The esterification products obtained particularly include those of the general formula <FORM:1058214/C2/1> in which R, A and n are as defined above.  Any unreacted P-Cl linkage still remaining in the product may be hydrolysed with water to form a product in which one of the terminal groups is a <FORM:1058214/C2/2> group which can then be esterified.  Alternatively, the P-Cl group can be esterified directly.  Examples are given in which the alcohol or phenols are respectively dodecyloxyhexaethylene glycol, p - nonylphenoxydecaethylene glycol, nonaethylene glycol, n-decanol and m-xylenol.  The products have applications in photography.
Patent GB-1370769-A (GB)
Title: Roller for a roller conveyor
IPC: B65G39/00
Filed: 1973-04-27
Abstract: 1370769 Roller conveyers KARL LEIBFRIED GmbH 27 April 1973 [29 April 1972] 20078/73 Heading B8A A friction drive for a rollerway roller comprises a pressure member 15 of whichthe frictional engagement with a driven shaft 1 is adjustable by a screw 14 threadably engaged in a steel roller tube 6. End members 5 of the roller are a running fit on the shaft 1 and, together with the pressure member 15, are made of a synthetic resin, preferably a polyamide. If, instead of using the friction drive, a positive drive is required, a pin 16 is located in the shaft 1 and the member 5 having the pressure member 15 is provided with a recess for engagement with the pin 16. The pin may be threaded and be accessible through an opening in the tube 6. The shaft 1 is driven by a sprocket 7 and is supported in plain bearings 2. There is a cover 10, 11 on either side of the rollerway.
Patent GB-636056-A (GB)
Title: Improvements in or relating to methods of humidifying air
IPC: F24F6/06
Filed: 1947-07-25
Abstract: 636,056. Conditioning air. CUMMINGS, W. W. July 25, 1947, Nos. 20119 and 20120. Convention dates, Jan. 11, 1940 and Sept. 24, 1940. [Class 137] [Also in Group XII] In humidifying air in an enclosure, a volume of air and water are separately heated and the water is sprayed into the air and is vaporized ; after removal of any suspended moisture, the air having a high vapour pressure is brought into contact with the main body of air whereupon vapour is distributed independently of air motion and without a noticeable change of temperature. A humidifier comprises an air heater 16 at the air inlet 12, a spray nozzle 54 over a water reservoir 24, eliminator plates 68 and a fan 74 at the outlet 14. Water is pumped from the reservoir through a gas-heated coil 38, and airheating surfaces of heater 16 to the spray nozzle, or the water heater may be heated by steam, oil, or electricity. A humidostat or other automatic means may control the operation of the pump, fan and water heater. In a modification the humidified air is returned to the inlet through a duct having a grille permitting contact with the air in the enclosure. In an example, for maintaining a room at 80‹ F. and 40 per cent relative humidity the spray water is heated to 180‹ F. and the air issuing from the humidifier has a temperature of about 140‹ F. and 80 per cent relative humidity.
Patent GB-280622-A (GB)
Title: Improvements relating to travelling ovens of the flat sole type
IPC: A21B1/48
Filed: 1926-08-16
Abstract: 280,622. Pelkman, J. H. N. Aug. 16, 1926. Bakers' ovens.-In a con. tinuously-operated bakers oven having an endless travelling sole so con. structed that the goods being baked are supported on slabs of earthenware, stone, concrete &c., the slabs are formed to overlap or interengage, and means are provided by which they may be adjusted in their supporting frames in the longitudinal direction of the sole. The slabs 6 may be mounted in metal frames 7 as shown in Fig. 6, or may be secured thereon by bolts 14, as shown in Fig. 4, and each slab may have integral or attached vertical end portions, which prevent formation of crust on the outer sides of the end loaves. The slabs may be formed as shown in Fig. 11 so as to interengage, each such slab being either built up of a member of polygonal sections, or formed as a unitary structure. In the construction shown in Figs. 7 and 8 the slabs 6 are dovetailed and are held between undercut bars 15 of the frames by wedges 16 so that the slabs can be adjusted in the longitudinal direction of the sole. The slabs may be formed with holes or recesses, which do not extend through to the upper surface, and they may be mounted on metal bars secured at their opposite ends to the conveyer chains.