baber/WOPTO huggingface dataset:
Patent GB-956240-A (GB)
Title: Electrical translating device embodying a thermal protector for an electric motor
IPC: H02K11/00
Filed: 1961-01-19
Abstract: 956,240. Protective cut-out systems; thermal switches. V. G. VAUGHAN. Jan. 19, 1961, No.- 2276/61. Headings H2B and H2K. A protective system for a two-winding motor includes a current-carrying thermal element in series with the windings and two heaters, each connected to the thermal element and to one of the windings and the thermal element is also in heat transfer relation with at least one winding. The heaters 92, 96 (Fig. 12), may be connected respectively in parallel and series with the motor starting and running windings 94, 98 in series with the thermal element 18. Alternatively, the heater associated with the starting winding may be in parallel part or in series therewith (Figs. 13 and 14, not shown). In Figs. 3 and 5, the thermal element 18 is mounted on a base 10 and normally completes a circuit between terminals 20, 22 and opens this circuit with snap-action when heated above a set temperature. An insulating strip 42 located in slots 44, 46 separates the elements 18 from a heater 32 located by twisted end lugs 36, 40 in holes 28, 30 in the base 10 and having terminals 34, 38. A cover 48 for the heater 32 is held by a layer of glass-silicone ahhesive tape 50 around which the second heater 52 is wound by passing its centre through an opening 26 and double winding about the assembly so as to produce a non-magnetic heater 52. In an alternative arrangement (Figs. 8 and 10), the heater is in the form of a helical ribbon 76 of high resistance material in a recessed path 74 in a cover member 72 secured to the base 10 by tape 50 and second heater 90. In a further arrangement (Figs. 16, 17), the two heaters comprise parts of the same wire 32a on opposite sides of a connector 120 welded thereto and passing through a hole 118 in the base 10 to a terminal element 20a. The connector 120 may alternatively pass through a hole 116 to be welded to the wire 32a at a different point.
Patent GB-798384-A (GB)
Title: Improvements in angular position control systems
Inventor: CHOUDHURY SHAFI-UDDIN AHMED
IPC: G08C19/48
Filed: 1956-01-24
Abstract: 798,384. Selsyns. BRITISH THOMSONHOUSTON CO., Ltd. Jan. 24, 1957 [Jan. 24, 1956], No. 2326/56. Class 35. [Also in Group XXXVII] In a system for enabling single-phase receiving selsyns 4<SP>1</SP>, 5<SP>1</SP> to synchronize when connected to a transmitter 4, 5 that is already in motion, a rectifier is connected to a winding on the transmitter primary member to produce a D.C. component producing a synchronizing torque. As shown, an additional quadrature winding 7, 7<SP>1</SP> is provided on the transmitter and receiver rotors respectively, that on the transmitter being connected to the rectifier 8, and those on the receivers being short-circuited directly or through a resistor 9. Any lag between the transmitter and a receiver induces a voltage in winding 7, and the consequent direct current excitation of the transmitter rotor produces a polyphase component in the secondary windings which drives the lagging receiver as an induction motor. If necessary, additional torque may be obtained by feeding the single-phase primary winding through a condenser and rectifier, similarly to the arrangement described in Specification 769,746. Arrangements in which a three-phase winding is used to produce the effect of main or quadrature windings, are described.
Patent GB-1509111-A (GB)
Title: Apparatus for supplying fluent material
IPC: B41K3/60
Filed: 1976-01-21
Abstract: 1509111 Inking systems PITNEY-BOWES Inc 21 Jan 1976 [23 Jan 1975] 02333/76 Heading B6C A system for supplying a predetermined quantity of liquid or a powder fluent material, e.g. an inking system for a postage meter, has an open-topped reservoir 28 for liquid or fluent material, and positive displacement pump, e.g. gear pump 37, which is intermittently operable to dispense predetermined quantities, e.g. to roller train 24, 22, 16, the duration of each operation being variable to vary the amount dispensed. The gear pump may be driven by electric motor 38 under the control of a system wherein switch 40 is closed whenever a letter is presented for printing thus producing from timer circuit 42 a pulse whose duration determines the duration of operation of the motor. A manually settable control 46 is provided to adjust the duration of the pulse produced by timer circuitry 42, and hence the amount dispensed. The conduits 30 and 34 are preferably of relatively large diameter to obviate clogging, but the positive displacement action of pump 37 also is such as to clear any obstruction. Ink may be fed to the surface of metal roller 24, where it is spread by doctor blade 26.
Patent GB-1098752-A (GB)
Title: A semiconductor device
Inventor: URUSHIDA KOICHI
IPC: H01L23/057
Filed: 1965-01-19
Abstract: Semi-conductor devices such as transistors and diodes are sealed within a two-part housing composed of glass, devitrified-glass, or ceramic. Conductors from the device are brought out from the housing between the two parts which are bonded together by an insulating material such as a glaze or an organic adhesive.  In an example, leads are wired or alloyed to a diffused transistor and laid between the glaze coated edges of the parts and the assembly heated to 350-550 DEG  C. to fuse the glaze. In other examples, the conductors are formed by conductive tracks on the upper surface of a flat plate constituting one of the housing parts.  Reference has been directed by the Comptroller to Specification 958,241.
Patent GB-1532241-A (GB)
Title: Supports for concrete formwork
IPC: E04G11/48
Filed: 1975-01-20
Abstract: 1532241 Supporting floor shuttering ACROW (ENGS) Ltd 6 Jan 1976 [20 Jan 1975] 2418/75 Addition to 1473846 Heading E1S A drop-head fitment for a scaffolding prop, or a modified prop, comprises a support tube 8 having a threaded engagement with a shank 6 fixed to the prop, or with the prop per se, and a beam support member 10 formed on a tubular sleeve 12, which member is supported, in one angular position of tube 6 by, e.g. lugs 14, and drops down over tube 6 in another angular position thereof, when, e.g. vertical slots (22) in sleeve 12 are positioned immediately above the lugs 14. Sleeve 12 is prevented from rotating by a horizontal pin 24, which also limits the downward movement of the sleeve when it comes into contact with the upper end of a slot 28 in the sleeve, through which it passes.
Patent GB-717828-A (GB)
Title: Improvements in and relating to machines for grinding conical surfaces
IPC: B24B5/14
Filed: 1951-01-31
Abstract: 717,828. Grinding. HARTRIDGE, L. April 30, 1952 [Jan. 31, 1951], No 2475/5]. Class 60 A machine for grinding conical surfaces on workpieces includes a guide engageable by a cylindrical part of or associated with the workpiece and a driving belt engaging a smooth substantially cylindrical part of or associated with the workpiece in such manner as to retain the workpiece in the guide during grinding and to effect the rotation thereof, said belt being moreover so arranged that an axial component of force is imparted to the workpiece while it is being rotated, to press the workpiece yieldingly against a stop. As applied to the machine described in Specification 657,129 for grinding conical surfaces on valve pins of feed pumps or injector nozzles for compression ignition engines, laps for lapping the seats of said nozzles or pumps for receiving such pins or pintles, and the like, the workpiece 13 is yieldingly urged into the V-groove 26 by a driving belt 70 engaging the workpiece. The belt is driven by a pulley 71 associated with a drive unit 72 pivotally mounted on an arm 73 by means of a lever 74 operable, to bring the belt into engaging position, by mean of a manipulating handle 75 an angular part of which is adapted to engage a notch in the arm 73 to retain the lever 74 in the position in which the belt is operative. By rocking the lever 74 about the arm 73 the belt can be slackened for insertion or removal of a work-piece. The pulley 71 journalled in the unit 72 is driven by a flexible shaft 86. A rocker plate 77 pivoted on a 'screw 78 has depending pins 79 adapted to bear against the sides of the belt 70; the plate 77 is located in alternative working positions by a stop pin 80 projecting into a slot 81 in the plate. With the plate in its position shown in Fig. 2, the workpiece is urged rearwardly into contact with an adjustable end stop 65. With the plate in the position shown in Fig. 4, the workpiece is urged forwardly so that a coned surface 132 adjacent the tip 131 is brought into contact with a stop element 68.
Patent GB-305577-A (GB)
IPC: B29C35/02
Filed: 1929-01-24
Abstract: 305,577. General Carbonic Co., (Assignees of Minor, H. R.). Feb. 7, 1928, [Convention date]. Digesters.-Relates to apparatus for heating by steam and the like of the kind used for vulcanizing rubber, cooking &c. The heating chamber is first supplied with an inert gas at a controllable pressure and then with steam or like heated gas at a fixed higher pressure, the temperature being controlled by varying the pressure of the inert gas, so that the partial pressure of the steam &c. is thereby varied.
Patent GB-829259-A (GB)
Title: Improvements relating to barrels for self-winding watches
IPC: G04B1/18
Filed: 1958-01-27
Abstract: 829,259. Watches INSTITUT DR. ING. STRAUMANN R., A. G. Jan. 27, 1958 [Jan. 31, 1957], No. 2592/58. Class 139 In a barrel for a self-winding watch the auxiliary spring d, Fig. 1, forces the outer coil of the main-spring c against the surface a<SP>1</SP> of the wall of the barrel a which surface is of a steel or steel alloy treated, e.g. by chromium plating or vacuum deposition to have a hardness at least approximately equal to that of the mainspring. Where the barrel wall and the spring are of the same material the hardness of the barrel wall is different from that of the spring. If the barrel is made of aluminium or of an aluminium alloy the hard surface a<SP>1</SP> may be obtained by an electrolytic oxidation process. In a modification, Fig. 3, a hardened ring e is force fitted into the barrel. Specification 766,191 is referred to.
Patent GB-1370826-A (GB)
Title: Photographic developer composition and use thereof
IPC: G03C5/38
Filed: 1972-01-19
Abstract: 1370826 Photographic developer PHILIP A HUNT CHEMICAL CORP 19 Jan 1972 2597/73 Heading G2C An exposed gelatine/silver halide emulsion is developed with an aqueous composition comprising a black and white developer, an alkali to produce a pH of at least 8 and a sulphite ester as preservative. The developer may be hydroquinone, chlorohydroquinone, bromo-hydroquinone, n-monomethyl-p-aminophenol sulphate, 1-phenyl-3-pyrazolidone or 4, 4-dimethyl-1- phenyl-3-pyrazolidone. The alkali may be a quaternary ammonium hydroxide, an alkali metal carbonate, tatraborate, metaborate or hydroxide or a hydroxyalkylamine. The sulphite ester may be 1, 2-ethylene sulphite, 1-methyl-2, 2-ethylene sulphite, 1, 2-dimethyl-1, 2-ethylene sulphite, 1, 3-propylene-sulphite or dimethyl sulphite. The molar ratio of sulphite (calculated as SO 2 ) to developer may be at least 1. The developer bath may contain at least 15 gm per litre of sulphite ester. The developer may be in concentrated form containing up to 20% of water based on the sulphite ester. Also present may be a restrainer, anti-foggant, sequestering agent, silver halide solvent, cosolvent or gelatine hardening agent.
Patent GB-961879-A (GB)
Title: Improvements in or relating to packages for vacuum packed merchandise
Inventor: SAMWAYS BRUCE
IPC: B65D77/02
Filed: 1962-01-24
Abstract: 961,879. Bags. COLODENSE Ltd. Dec. 14, 1962 [Jan. 24, 1962], No. 2624/62. Heading B8K. A bag is formed with a number of fins 7 which serve as spacers between the contents 9 and an enclosing container 11 to prevent damage to the contents. The bag is also preferably formed with similar end closures 8.
Patent GB-1274353-A (GB)
Title: Improvements in combinations of materials for rolling-contact bearings
IPC: F16C33/62
Filed: 1970-01-20
Abstract: 1,274,353. Making bearings. SOC. NOUVELLE DE ROULEMENTS. 20 Jan., 1970 [20 Feb., 1969], No. 2707/70. Heading B3A. [Also in Division F2] Different parts of a rolling contact bearing are constructed of different materials, the materials being so hardened and prestressed by heat treatment that the internal end surfaces stresses developed in the materials by the heat treatment, will counteract the stresses resulting from mounting and service conditions of the parts involved, in order to minimize fatigue stress effects in the parts. An outer race of the bearing is made from core hardened carbon steel so that the traction stresses resulting from the hardening process counteract the compression stresses resulting from the fitting and loading of the race. The inner race is made from case hardened cementation steel so that the compression stresses resulting from the hardening process counteract the tensile stresses resulting from the filling and loading of the race. To counteract compression stresses and microweld formation between the rolling members, e.g. balls or rollers, and the inner race, the rolling members are made from core hardened carbon steel.
Patent GB-672048-A (GB)
Title: Improvements in or relating to guanidine salts
Filed: 1950-02-02
Abstract: Guanidine salts are recovered from an aqueous slurry which contains them in solid phase and which may also contain other organic or inorganic salts in solid phase by subjecting the slurry to froth flotation, preferably in the presence of a flotation reagent, to float the guanidine salt particles, and separating the latter from the froth.  In the preparation of guanidine salts by double decomposition, both a guanidine salt and an inorganic salt may be precipitated and thereafter the guanidine salt is separated by flotation.  In the examples: (a) guanidic carbonate is floated from an aqueous slurry saturated with guanidine carbonate and sodium chloride by the use of one of a large number of flotation agents; (b) guanidine carbonate, sulphate, acetate, fumarate, tartrate, citrate, benzoate and phthalate and diguanidine phosphate are floated by means of various flotation agents and were separated; (c) guanidine carbonate, prepared by the double decomposition of guanidine hydrochloride and sodium carbonate was separated by flotation from the reaction mixture using pine oil as flotation agent; (d) guanidine carbonate is separated from sodium sulphate using pine oil as flotation agent; (c) guanidine carbonate is separated from sodium carbonate using pine oil as flotation agent; (f) guanidine nitrate is separated from sodium carbonate, using pine oil as flotation agent; (g) guanidine nitrate is separated from sodium chloride using pine oil as flotation agent; (h) guanidine nitrate is separated from sodium nitrate using pine oil as flotation agent; (i) guanidine carbonate is separated from sodium chloride using various flotation agents; and (j) guanidine nitrate, sulphate and carbonate and diguanidine phosphate were separated from unspecified inorganic salts using various flotation agents. Guanidine carbonate, nitrate, acetate and benzoate may be floated without the use of a flotation agent if the slurry is frothed sufficiently but diguanidine phosphate, guanidine citrate and guanidine tartrate need a flotation agent for their separation.ALSO:Guanidine salts are recovered from an aqueous slurry which contains them in solid phase and which may also contain other organic or inorganic salts in solid phase by subjecting the slurry to froth flotation, preferably in the presence of a flotation reagent.  Flotation reagents which may be used are octylaldehyde, B-23 alcohol, crude dicresyldithiophosphonic acid, castor oil, amyl mercaptan, naphthenic acid, phosphorated castor oil, creosote oil, sulphonated tall oil, fuel oil, pine oil, cresylic acid, ethyl xanthogen ethyl formate, sodium diethyldithiophosphate, tall oil, amyl acetate, crude turpentine, dibutylphthalate, secondary butyl alcohol, oil-soluble petroleum sulphonate, methyl isobutyl ketone, nitrobenzene, ammonia disecondarybutyl dithiophosphate, aniline oil, water-soluble petroleum sulphonate, carbon tetrachloride, sodium secondary butyl xanthate, sulphonated castor oil, oleic acid, sulphonated oleic acid and ethylene glycol mono-oleate.
Patent GB-585157-A (GB)
Title: Improvements in, or relating to, valves for controlling the flow of gas
IPC: F24C3/12
Filed: 1944-01-31
Abstract: 585,157. Valves actuated indirectly. STEADMAN, F. S. Jan. 31, 1945, No. 2849/44. [Class 135] The flow of gas to a burner is controlled by a valve of the type which is opened automatically by the depression of a lover by a utensil as the latter is placed on the burner, and the valve includes a spring-loaded plunger which projects to the outside of the valve casing and is there anchored to the lever, the end of the latter being arranged to bear on the valve casing and to rock about the point of contact therewith. When a utensil is placed on the burner 18, a two-armed lever 17, 19 is forced down and turns about its end 20 which abuts the closing plug of the valve casing 1. A series of holes 25 permit of adjustment between the two arms of the lever. As the lever moves downwards, it pulls down a plunger 9, against the action of its loading spring 10, and allows a ball 15 to become unseated from its position, closing the passageway 6 through which gas enters the valve casing. Gas can then flow through a'passage 12 to a nozzle 14 leading to the burner. A manually-actuated gas cock 3 is provided in the inlet passage. Cleaning of the passage 12 can be effected by removing a screw plug 16 closing the end thereof. A pilot light may be tapped off from the supply side of the cock 3.
Patent GB-538876-A (GB)
Title: Manufacture of bricks and the like for heat and sound insulation
IPC: C04B38/08
Filed: 1940-02-15
Abstract: 538,876. Insulating material. ZIERER, A. Feb. 15, 1940, No. 2869. [Class 70] Insulating material is made from blast furnace slags or clay which have been " foamed " or " bloated " by melting and quickly chilling, using clay as a binding agent and burning in a kiln. Sawdust or other fuel which is afterwards burnt out may be added. Diatomaceous earth may also be added.
Patent GB-1038381-A (GB)
Title: Improvements in or relating to mounting arrangements for functional units
Inventor: BAKER ALFRED
IPC: H05K7/16
Filed: 1963-01-23
Abstract: 1,038,381. Rack-mounted electrical equipment. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Dec. 19, 1963 [Jan. 23, 1963], No. 2946/63. Heading H1R. In an arrangement for mounting functional units side by side on a normally horizontal base-plate, each unit consists of a frame, carrying electrical, e.g. telecommunications, equipment, which is hinged at the end of one arm of an L-shaped member, said arm being mounted above said base-plate, and the other arm of the L-shaped member incorporating a tagblock through which connections are made to said equipment. As shown, Fig. 1, a functional unit comprises two printed circuit cards 19, 20 held in parallel relation by channel members 21, 22, and mounted by a hinge formed by U-shaped brackets 16, 17 and an insulated hinge-pin 15 to an L-shaped member 10, being secured in the normal position shown by a spring-loaded drawbolt 27 which co-operates with a slotted block 31 of polythene &c. Other equipment (not shown) of the unit may comprise components mounted on the outer faces of the cards 19, 20 or relays and other components mounted between the cards and on at least one of them. The L-shaped member 10 has its horizontal arm mounted on the base-plate 48, Fig. 3, of a shelf, and its vertical arm bolted to an L-section steel member 47 of the shelf, which also comprises triangular end-plates 45. The hinged equipment structure may be pivoted outwards as shown to facilitate access to the equipment, its outward movement being terminated by the engagement of bracket 17 with bracket 16. A hinged guard-bar 58 protects the equipment structure when it is in the horizontal position, being maintained in this position by the engagement of a cranked arm 44 with a handle 54 on the shelf. The shelf is itself hinged at its front edge to a main rack (not shown) for outward angular movement which is limited by articulated arms (not shown), to give access to the shelf wiring which is connected to the equipment of the unit via a tagblock 37 screwed over an aperture 38 in L-shaped member 10, and cable-paths CP, CPR (Fig. 1). A further tagblock (not shown) secured to the shelf behind the unit may carry permanent terminals for the shelf-wiring, connections between the two tagblocks being made by wiring straps.
Patent GB-1444203-A (GB)
Title: Rotary regenerative heat exchanger
IPC: F28D19/04
Filed: 1974-01-22
Abstract: 1444203 Thermal regenerators ADVANCED MATERIALS ENG Ltd 8 Jan 1975 [22 Jan 1974] 02955/74 Heading F4K In a rotary regenerative heat exchanger of the kind comprising an annular ceramic rotor 24 rotatably mounted in a housing providing respective inlet and outlet ducts 10, 12 and 14, 16 for first and second fluid streams, e.g. compressed air and turbine engine exhaust gases, the interior of the rotor 24 is divided into two separate spaces 46, 48 by a diametral wall 40 so that the respective fluid streams each flow in a first pass through the rotor into space 46 or 48 within the rotor and then out in a second pass through the rotor into the corresponding outlet duct 12 or 16. The outer periphery of the rotor co-operates with fixed seals 26, 30 and 32, 34 mounted on the housing walls 18, 22 and 20 respectively. The internal boundary of the rotor 24 co-operates with seals 42, 44 on the wall 40. Further seals, in the form of radial seals 61, 62, and 64, 66 and annular seals 68, 70 and 72, 74, are provided at the ends of the annular rotor. As shown, the rotor comprises annularly arranged radially directed plates 50 closely spaced to define a plurality of radially extending passages. Alternatively the radial plates may be replaced by plates angled so as to generate turning forces on the rotor from the applied fluid streams, thereby eliminating the need for a separate drive mechanism for the rotor. In a modification the rotor consists of porous material such as ceramic foam having interconnecting pores. In a further modification (Fig. 3, not shown) the rotor comprises a thick walled tube of ceramic material, or a series of tubular sections assembled coaxially end-to-end of impervious ceramic material such as silicon nitride having radial through-passages distributed throughout its volume.
Patent GB-396400-A (GB)
Title: Improvements in or relating to disintegrating or grinding apparatus
IPC: B02C13/13
Filed: 1932-02-02
Abstract: 396,400. Grinding mills and apparatus. PORTEUS, G., Leeds Bridge Works, Hunslet Lane, Leeds. Feb. 2, 1932, No. 3052. [Class 59.] In a mill in which the dust-laden air is discharged from the mill to a cyclone, the air returning to the mill in a closed circuit, the air outlet of the cyclone has associated therewith a hood or canopy delivering into the substantially closed path or circuit. As shown in the Figure, a fan 8 coupled to the rotary beater shaft of the grinder 1 discharges ground material into the top of a combined cyclone separator and hopper 4, the ground material falling into bags 4<x> and the dustladen air being drawn off through a hood 9, adjustable by means of a sliding joint 11 to vary the suction effect. A pipe 10 connected to the hood returns the air to the discharge outlet of the grinder or when a fan is used, to the grinder discharge outlet or to the suction side of the fan.