baber/WOPTO huggingface dataset:
Patent GB-348550-A (GB)
Title: Improvements in and connected with air treating or conditioning means for ventilating installations
IPC: F24F3/14
Filed: 1930-02-12
Abstract: 348,550. Treating air for ventilation. STONE & CO., Ltd., J., Deptford, VIDAL, J. F. B., 18, Brandram Road, Lee, and ROWLEDGE, E. G., 23, Felhampton Road, New Eltham, all in London. Feb. 12, 1930, Nos. 4790 and 11451. [Class 137.] Forced ventilation.-In air conditioning apparatus for ventilating installations comprising an enclosed cooler for reducing the moisture content and a reheater for restoring heat to the air before it passes to the enclosure to be ventilated, the cooler and reheater consist of coils connected up in a mechanical refrigeration circuit. Air from the enclosure being ventilated or fresh air from outside or a mixture of the two is drawn into a casing a by a fan b through ducts e<1>, e respectively and returned to the enclosure by way of a duct c after being cooled by coil h, resulting in a deposition of moisture, and reheated by a coil k. An additional heater o of any type is preferably included in the casing. The coils h, k are connected up in a mechanical refrigeration circuit in such manner that warm compressed fluid from a compressor passes first through the reheater coil k, then through a condenser l in which it is cooled and finally through an expansion valve m into the cooling coil h. As applied to a railway or like vehicle the condenser l is conveniently disposed on the roof and the compresser suspended beneath the vehicle. During cold weather the refrigerating plant may be stopped and the heater o used for heating the air. Water spray devices may be fitted within the casing for use when the air requires to be humidified. In a modified form of apparatus, Fig. 3, the air enters the casing a at the top and the cooling is assisted by cold water sprays y, z, the water being circulated by a pump x and cooled by part of the cooling coil h. A depending partition g<1> forms a lateral chamber through which the cooled air ascends, the upper end of said chamber being divided into two passages, one containing the reheating coil k and the other forming a byepass to said heater. These passages are controlled by dampers 4, 5 automatically operated from a differential thermostat comprising an element u in the outlet duct c and an element t situated in the external atmosphere. A wet bulb thermostat q preferably comprising a bulb containing expansible liquid operating through bellows r controls a valve in the refrigeration circuit. In a further modification the casing a is arranged horizontally.
Patent GB-647423-A (GB)
Title: Improvements in or relating to vacuum packaging
IPC: B65D75/38
Filed: 1948-02-18
Abstract: 647,423. Packaging. ROBINSON, Ltd., E. S. & A., NICHOLAS, F. P., and ALWAY, H. H. T. Feb. 18, 1948, No. 4804. Drawings to Specification. [Class 94(i)] A vacuum package is produced by packing a commodity into a container made from a material, such as polyvinyl chloride, which has a low rate of permeability to oxygen and nitrogen and a high rate to some other gas, such as carbon dioxide, sulphur dioxide or ammonia, charging such other gas into the container so as to expel air therefrom, sealing the container and allowing the contained gas to pass through the walls of the container to the atmosphere. The container may subsequently be enclosed in a gas-resistant envelope to retain the vacuum.
Patent GB-470816-A (GB)
Title: Improvements in and relating to marine life saving appliances
IPC: B63C9/00
Filed: 1936-02-18
Abstract: 470,816. Combined life-line and buoy. REFSNAES, K. J. Feb. 18, 1936, No. 4889À [Class 77] A life-line is composed of a number of rope elements 1 each having at one end an adjustable loop 2 to be placed around the body of a person, and is attached at one end to a life-buoy 6. The buoy 6 is weighted at one side to maintain its equilibrium, and has a groove 9 to receive the rope if the buoy is placed within the loop when used. Each loop is adjusted by a clasp 8 composed of cork with a metallined bore to receive the double rope of the loop. The buoy 6 may contain an electric battery and carry an electric lamp.
Patent GB-699421-A (GB)
Title: Improvements in joints for electric cables
Inventor: COX HENRY NORMAN
IPC: H02G15/18
Filed: 1951-02-28
Abstract: 699,421. Cable joints. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Feb. 27, 1952 [Feb. 28, 1951], No. 4891/51. Class 38 (i). A method of making a joint between two very high-tension cables having a helicallylapped strip dielectric 3 (e.g. of impregnated paper), comprises tapering down the dielectric at each cable end, joining the conductors 1 by a ferrule 2, and, before insulating the joint by applying the paper tape 5, coating the tapered ends of the dielectric 3 with a highly viscous liquid or semi-liquid material 6. The material 6 comprises a solution of polyisobutylene or vulcanized rubber in mineral oil with or without the addition of a polyethylene composition. Hence, on application of the insulation 5 the viscous material 6 is squeezed between the latter and the dielectric 3 to fill-up any irregularities due to wrinkling of the paper 3, viz., at 4, thus preventing the inclusion of air. The material 6 is also preferably applied to the bare conductors 1 and ferrule 2, and if the joint is additionally insulated by outer paper dielectric 8, the material 6 is also applied to the dielectric 3 beyond the tapering parts thereof. Fluidtight joints are finally made between the cutback ends of the cable sheaths (not shown). A preferred composition of the material 6 comprises 84 per cent by weight of a naphthenic mineral oil thickened with polyisobutylene to give it a viscosity of 1750 centistokes at 40‹ C., and 16 per cent of the polyethylene composition " Alkathene-Grade 20," " Alkathene " being a Registered Trade Mark.
Patent GB-581353-A (GB)
Title: Improvements in or relating to hand-reciprocated implements or tools
IPC: A47L5/10
Filed: 1945-03-01
Abstract: 581,353. Reversing gearing. HORSNAILL, W. D. March 1, 1945, No. 5119. [Class 80 (ii)] [Also in Group XXVIII] Relates to hand-reciprocated implements or tools of the kind in which wheels 12, 13 which are rotated by contact with a floor or like surface during the reciprocation, impart a drive to the operative parts of the tools. According to the invention, the wheel axle 19 has friction discs 25, 26, carried on a screw-threaded portion 24 and having friction faces 27, 28 engageable with a friction wheel 31 on a shaft 30 carrying the member 15 to be driven. As shown, the member 15 is the centrifugal fan of a vacuum cleaner. As the wheels 12, 13, rotate first one way and then the other the discs 25, 26, move axially along the screw-thread 24 so that the friction faces 27, 28, alternately engage the friction wheel 30. Thus the fan 15 is driven constantly in the same direction.
Patent GB-981304-A (GB)
Title: An improved hinge connection
IPC: F21V21/26
Filed: 1961-02-11
Abstract: 981,304. Hinges. O. A. WALLMARK. Feb. 11, 1961, No. 5172/61. Heading E2F. [Also in Divisions B3 and F2] In a hinge connection between two or three members wherein the member 1 is journalled about a sleeve 3 which extends between and is attached at its ends to two spaced portions 5 of the other member or members, the length of the sleeve is greater than the width of the member 1 and the ends of a pin 7, which extends through the sleeve and the portions 5, are formed with longitudinal grooves 8 into which the material of end caps 9 is forced when the caps are pressed on to the pin to prevent withdrawal of the caps. The grooves decrease in depth and width towards the ends of the pin, and the internal cross-sectional area of the cap is less than the cross-sectional area of the pin.
Patent GB-627088-A (GB)
Title: Improvements in and relating to clamping mechanisms
IPC: B21J7/12
Filed: 1947-02-21
Abstract: 627,088. Power hammers. BRITISH THOMSON - HOUSTON CO., Ltd., and SKELTON, E. J. Feb. 21, 1947, No. 5174. [Class 83 (iv)] A pedal - operated hammer for securing together wires or metal strips is in the form of pliers comprising a stationary jaw 2 and a movable jaw 3, spring means 7 for urging the jaw 3 against the jaw 2 and means worked by the pedal which forces the jaw 3 back from the jaw 2 against the action of the springs for a predetermined distance and then releases it. The pressure of the springs is varied by means of studs 6. The jaw 3 is carried. by a lever 3a which is pivoted at 4 and engages between the arms of a star -wheel 8, rotated by operation of the pedal, through a ratchetwheel 9. Specification 332,412, [Class 83 (iv)], is referred to.
Patent GB-1022883-A (GB)
Title: Improvements in tubular furniture
Inventor: LLOYD ROGER WILLIAM
IPC: F16B12/42
Filed: 1964-02-07
Abstract: 1,022,883. Furniture legs. EDUCATIONAL & MUNICIPAL EQUIPMENT Ltd. Feb. 5, 1965 [Feb. 7, 1964], No. 5188/64. Heading A4H. A furniture leg comprises a tube A of circular, square or rectangular cross section with a fixing plate A<SP>1</SP> mounted on its upper end and with a slot or slots a<SP>1</SP> in one or more of its sides in which slot a<SP>1</SP> is secured a plate B or bracket to which is secured, preferably by screws c, a cross rail C extending between adjacent legs. The leg may be plastic coated and is provided at its lower end with a plastic ferrule a<SP>2</SP>.
Patent GB-608314-A (GB)
Title: Improvements in and relating to photographic enlarging apparatus
IPC: G03B27/56
Filed: 1946-02-19
Abstract: 608,314. Photographic enlarging apparatus. GOSS, R. H., and RONDEAU, G. E. Feb. 19, 1946, No. 5217. [Class 98 (i)] An enlarger comprises a bracket slidably mounted on a vertical column mounted on a base and carrying a horizontal adjustable arm supporting a condenser unit, lamphouse, negative stage and lens holder, and a projection table mounted above the base. As shown the base 1 carries a projection table 7 and a column 6 through which passes a lead 9 from the mains to the lamp housing 10. Slidable along the column is a bracket 13 having pivoted thereon at 19 a lever 18 spring urged at 191 so that a toe 181 thereon locks the bracket on the column, release of the bracket being effected by pressing on the lever. Slidable and rotatable in a bore on the bracket is an arm 14 through which passes a spindle 20, on which are slidably and rotatably mounted a condenser unit and a negative stage, both of which may be locked in any desired position. The condenser unit includes a casing 21 for lenses 30, 29, which are separated by a spring 28, the upper end of the casing having the lower rim 31 of the lamphouse 10 projecting thereinto to engage the lens 29. The lamphouse may be secured to the casing 21 as by screws 27. The negative stage 22 includes a turntable 23 bearing the negative and has secured thereto one end of a bellows 37 which is secured to a lens holder 36. Through this holder passes a spindle having pinions 41 which co-operate with racks 35 depending from the stage 22 to effect the focusing of the lens. A rod depending from the holder 36 may have a filter holder 44 slidably mounted thereon.
Patent GB-179678-A (GB)
Title: An improved shorthand typewriter
IPC: B41J3/26
Filed: 1921-02-15
Abstract: 179,678. Cerny, J. Feb. 15, 1921. Stenographic machines; keyboards; platenshift mechanism; shift-key actions; web-feeding arrangements.-In stenographic machines emplaying a paper strip that can be shifted laterally to permit representation of the vessels by printing the associated consonants at different levels, the paper'strip can receive four shift-movements each equal to half the height of a type, the five vowels being represented by printing the associated consonants in the normal and the four shift positions respectively. The strip 2, Fig. 3, passes horizontally over a platen roller 4 supported by a frame 13 engaging a lever 14 which abuts on levers 15 of graded lengths connected to levers a<1> - - a<4> operated by shift bars 6, arranged at the front of the keyboard for operation by the thumbs. The shift mechanism may be operated by pedals. The platen roller is splined on a shaft 9 provided with a ratchet-wheel 12 actuated by the printing-keys 5, or by spacing-bars 7 arranged at the side of the keyboard for operation by the little fingers. The frame 13 of the platen roller carries also feed and delivery rollers for the strip, and pressure rollers which engage the platen roller and are carried by levers drawn together by a spring. The letters of consonantal combinations, sch, for example, may be arranged vertically on the types and keys, and broad characters, such as m, may be arranged sideways; further, a number of punctuation marks may be arranged vertically on the same type.
Patent GB-556670-A (GB)
Title: A process for the production of magnesium hydroxide
IPC: C01F5/14
Filed: 1942-04-20
Abstract: 556,670. Magnesium hydroxide. BERK & CO., Ltd., F. W., AXT, M. O., and SYERS, R. April 20. 1942, No. 5261. [Class 1 (iii)] Magnesium hydroxide is obtained from mixtures containing magnesium and calcium oxides or hydroxides such as those obtained from sea water or by the calcination of dolomitic &c. limestones by boiling with water and sufficient sulphur to react with the calcium compounds to form CaS 5  and to provide a considerable excess of sulphur, filtering off the calcium polysulphide and removing the excess sulphur from the residue, e.g. by flotation. Sulphur is recovered from the polysulphide by known methods, e.g. by employment of carbon dioxide.
Patent GB-972146-A (GB)
Title: Improvements in or relating to magnetic materials
IPC: B22F9/12
Filed: 1962-02-12
Abstract: A magnetic powder comprising metal or alloy particles whose size is 1000<\>r or less is prepared by evaporating the metal or alloy into an inert atmosphere, e.g. argon, neon, under a pressure between 0.1 and 100 mm. Hg. so that fine particles are formed. Alloy particles may be formed from the alloy directly or from the separate metals. Metals specified are Fe, Co, Ni and alloys thereof.  The particles exhibit super-paramagnetic properties.
Patent GB-1056911-A (GB)
Title: Method of and means for continuously conveying compressible material along a straight pipe or duct
IPC: B65G19/16
Filed: 1964-02-08
Abstract: 1,056,911. Endless conveyers. L. DEVYLERRE. Feb. 8, 1964, No. 5387/64. Heading B8A. An apparatus for the continuous conveying of compressible materials, such as textile fibres, along a rectilinear duct 1, 2, comprises a run of an endless link or roller chain 9 movable along the longitudinal axis of the duct, and being tensioned and driven between sprocket wheels in order to move the material along the duct on the level or up and down inclines. The material is fed from a hopper 10 into the duct 1, 2 between two pressure rollers 7, 8 grooved to form a passageway for the chain 9. Alternatively, the material is merely gravity fed from a hopper. The duct comprises two sections 1, 2, bolted together on flanges 4, 5, and may be air-tight or be perforated depending on whether the material being conveyed has to be treated from outside of the duct, e.g. a perforated duct passing through a steam chamber.
Patent GB-1379864-A (GB)
Title: Bolts
IPC: F16B33/04
Filed: 1973-02-02
Abstract: 1379864 Bolt N C DAHL 2 Feb 1973 [3 Feb 1972] 5387/73 Addition to 1240051 Heading F2H A bolt of ductile material comprises a head 11 having a peripheral wrenching surface 14 and an annular extension 15, Fig. 1, or a second portion 29 forming an annular extension, Fig. 3 and 6, extending along and spaced from the bolt surface 27 to form a radial clearance 22, and the peripheral surface 14 has a groove 17 formed thereon, or between the facing surfaces of the bolt head 11 and the part 29 and the arrangement is such that when a predetermined force is applied to the bolt an annular section 19, Fig. 6, is plastically deformed inwardly with a wedgeshaped cross-section 20, 21 cause a reduction in the width of groove 17. A flowable encompressible material 13 is arranged in and partially fills the groove 17 and may indicate or may be arranged in an electric circuit with a lamp, hand or power winch to give a signal when a predetermined force is applied to the bolt.
Patent GB-297807-A (GB)
Title: Improvements in horse velocipedes
IPC: A63G19/00
Filed: 1928-02-21
Abstract: 297,807. Rothschild, H. Sept. 30, 1927, [Convention date]. Body motion and weight of rider, propelling by.-In the propulsion of a horse velocipede. the rider, by depression of the stirrups, effects a forward pivoting of both hind legs by means of lever mechanism, after which the body and front legs move forwards in consequence of the release of a spring driving device effecting relative rearward pivotal movement of the hind legs. The rider, by pressing on the two stirrups 33 suspended by straps 32, turns a pair of interconnected levers 20 about a pivot 19, these levers carrying with them, through a pawl 24, a toothed segment 18, which also turns about the pivot 19 and actuates a toothed segment 12 pivoted on a bolt 5, the segment 12 being connected by a transverse bolt 11 (sliding in slots 13 in the body 1) to the upper ends of the hind legs 4, which upper ends turn in recesses 7 in the sides of the body 1. The downward movement of the levers 20 is limited by the engagement of an abutment 30 with the bottom of the body 1. At this stage, the pawl 24 is released against the action of a spring plunger 28, by the engagement of its inclined lower end with a fixed pin 53, and the segments 18, 12 are drawn back into their original positions by a tension spring 16, the body of the horse being thrown forward, since the hind legs 4 are prevented from rolling back by a spring- pressed sliding one-way clutch on the axle 42 of the rear wheels 42<a>. The levers 20 are drawn up by tension springs 22 when the rider lifts up his feet, and the pawl 24 automatically re-engages with. the forward extension of the segment 18.
Patent GB-1236482-A (GB)
Title: An improvement in printer mechanisms
IPC: B41J9/38
Filed: 1969-01-31
Abstract: 1,236,482. Selective printing; numbering- machines. SHERWOOD MEDICAL INDUSTRIES Inc. 31 Jan., 1969 [2 Feb., 19681, No. 5472/69. Headings B6C and B6F. A print hammer mechanism comprises a reed 36 anchored at 38 and adapted to be vibrated in response to energization of an electromagnet 40, the vibrations being of a complex form permitting the free end 36b of the reed 36 to strike a type character 50a in different places during a single vibration. The reed, while vibrating, strikes a polepiece of the electromagnet 40 to modify the harmonic vibration of the reed. Type-wheel machines: type-selection.-The hammer mechanism is applied to a machine having four sets of wheels 46 each bearing numerical indicia. The right-hand pair of sets of wheels, Fig. 3, comprises a set of indicating wheels at the extreme right and a corresponding set of print wheels adjacent thereto. Type selection is effected in response to electrical input signals by a motor 59 driving a shaft 48 the shaft being coupled to a potentiometer 65 which nullifies the electrical input when the right-hand sets of wheels 46 are in a selected position. Each set of wheels 46 is cascaded so that ten incremental steps of a units wheel causes one step of a tens wheel and so on. A lost-motion assembly 63 protects the potentiometer 65 from high impact torque from the motor 59, especially at an end position of the potentiometer. Alignment for impression.-The setting of the wheels 46 is rendered accurate by an electromagnet 68 having poles 70 adjacent which teeth of a soft iron wheel 74 position themselves preferentially. When accurately set, the print wheels of the right-hand pair of sets are held in position by an arm 100 urged by a solenoid 107 to press the wheels together in an axial direction. Line-spacing.-After impression has been effected paper fed between the reeds 36 and wheels 46 is stepped one line space by a motor (80), Figs. 2, 6 (not shown), driving a shaft 90 through a chain 86. The motor is automatically switched on and drives so long as a switch 94, controlled by an arm 96 co-operating with a toothed wheel 98 on the shaft 90, remains closed, i.e. until the arm 96 strikes a tooth on the wheel 98. The printing is preferably carried out on a web of pressure-sensitive paper. Numbering-machines.-The left-hand pair of sets of wheels 46 indicate and print consecutive numbers for successive impressions of the righthand sets of wheels 46. A pawl 53 oscillated by an electromagnet 56 engages a toothed wheel 52 to step the units wheels 46 after each operation.
Patent GB-433719-A (GB)
Title: Improvements in paper or cardboard cartons or containers
IPC: B65D5/02
Filed: 1934-02-20
Abstract: 433,719. Cartons. PALMER, H. W. S., Villa Amatia, Pinewood Road, Branksome Park, Bournemouth, and HARRINGTON, J., 15, King's Place, Baker Street, London. Feb. 20, 1934, No. 5575. [Classes 18 and 66] In a paper &c. container as claimed in Specification 399,927, the final closing flap 6 at the upper or filling end is of smaller size than the other closing flaps 4, 5, at that end of the container. The free edges of the flap 6 are preferably formed with serrations 11 and small perforations 12 may be provided to ensure more effective adherence of the wax or other sealing medium. The closing flaps 4, 5, 6 at the filling end are preferably of progressively decreasing size and the filling hole 5a in one of them is of smaller size than those in the other flaps to ensure proper insertion of the filling nozzle.
Patent GB-647133-A (GB)
Title: Manufacture of emulsions of the water-in-oil type and emulsifying agents and intermediate products therefor
IPC: C09K23/00
Filed: 1947-02-26
Abstract: An emulsifying agent containing the residues of a polyhydric alcohol, a higher fatty acid and a polybasic carboxylic acid is prepared by heating a mixture of suitable components to give a product soluble in oil but insoluble in water, which can produce by the "steam emulsion test" an emulsion of 20 c.cs. of water in 20 c.cs. of a solution of 0.25 per cent strength of the product in neutral freshly refined ground nut oil from which emulsion not more than 5 c.cs. of oil separate at 93-95 DEG  C. in 20 minutes. Starting materials are preferably partial or complete esters of a polyhydric alcohol and a higher fatty acid or a mixture of such substances.  Polybasic organic acids include aliphatic carboxylic acids or their anhydrides, but they should not contain too many OH groups in their molecule unless such groups are suitably blocked.  Specific acids are maleic, fumaric and sebacic, especially for manufacturing edible oil and fat emulsions. Polyhydric alcohols mentioned are glycol and glycerol, but a triglyceride is the preferred starting material.  Free acid present in the product is lessened by neutralization with ethanolamine.  An addition of glycerol after heating of the components has begun improves the product.  The starting materials are first heated at 200 DEG  C. for 2 hours, then increased slowly to 240 DEG  C.  The polyhydric alcohol is slowly added but with the mixture at a temperature of 150-180 DEG  C.  In examples: (1) the monoglyceride of ground nut oil and sebacic acid, and (2) ground nut oil and maleic anhydride and glycerol, are heated together.