baber/WOPTO huggingface dataset:
Patent GB-445685-A (GB)
Title: Improvements in escapement mechanism for typewriting machines
IPC: B41J19/42
Filed: 1935-05-14
Abstract: 445,685. Typewriters. ROYAL TYPEWRITER CO., Inc., 2, Park Avenue, New York, U.S.A.-(Assignees of Michelsen, W. 0.; 8029, 90th Road, Woodhaven, Long Island, New York, U.S.A.) May 14, 1935, No. 33066. Convention date, Sept. 5, 1934. Divided out of 445,654. [Class 100 (iv)] Letter - spacing mechanism.-In mechanism comprising a pawl for coupling the escapementwheel to the feedpinion, return movement of the carriage is silenced by yieldable means which co-operate with the teeth of the feed-pinion to retain the pawl out of engagement with the teeth. In the mechanism shown in rear view in the Figure, a pawl 13 for coupling the escapement-wheel 11 to the feed-pinion 9 is connected to a U-shaped spring arm B which is formed with a hump 19 engaging the feed-pinion, and is anchored to the escapement-wheel, the pawl and hump being in engagement with opposite faces of the same tooth. On return of the carriage, the hump rides over the teeth of the feed-pinion and prevents the pawl from clicking against the approaching tooth.
Patent GB-1367556-A (GB)
Title: Oxygen blowing lance
IPC: C21C5/46
Filed: 1972-07-14
Abstract: 1367556 Blowing lances MESSER GRIESHAM GmbH 14 July 1972 [15 July 1971] 33100/72 Heading F4B  A blowing lance with a central oxygen pipe 16 and coaxial outer pipes 12, 14 for cooling water is of welded construction with a thermal compensation part in at least one of the coaxial pipes and the nozzle end of the lance is coated with a metal of high thermal conductivity. Spacers 22 and a helical guide 28 space the cooling pipes 12, 14, and the outer pipe 12 has two telescoping sections 46, 48 connected to the body parts by metallic bellows-members 42, 48 to compensate for thermal expansion. The expansion device is enclosed in a casing 38. The nozzle end of the lance is coated with copper or other metal of high thermal conductivity. An intermediate layer of alloy ensures the adhesion of a coating built up by welding to the steel lance head and body.
Patent GB-1479813-A (GB)
Title: Control device for igniting and monitoring a flame-fired furnace
IPC: F23N5/08
Filed: 1975-08-08
Abstract: 1479813 Burner controls DANFOSS AS 8 Aug 1975 [7 Sept 1974] 33163/75 Heading F4T An A.C. control device for igniting and monitoring a flame-fired furnace comprises a fuel relay M, for controlling the fuel supply, the relay being connected in series with an impedance Z, R3, and is energizable in dependence on the operation of at least one contact M1 of a flame monitoring circuit FW, a safety switch V1, heatable by a coil V, and optionally a time switch T1, the impedance having a resistance value such that the fuel relay M drops-off when the voltage applied to the control device falls below a value which is at least equal to that necessary for ignition and/or monitoring of the furnace, the impedance being so connected that it influences the current flow through the heating coil V of the safety switch V1, to a lesser extent. In operation, with boiler thermostat KT closed, heating coil T of the time switch T1 is heated and after a few seconds the switch closes at a and voltage is applied to the series circuit containing fuel relay M, and coil V is heated. Current flows through relay M, switches M1, M2, close, to supply voltage to ignition gas magnetic valve MV1 so that gas flows to the furnace combustion chamber. Simultaneously, ignition device ZT is actuated through a closed photocontact F3 and the gas is ignited. If flame monitor FW shows that flame exists, photoswitch Fl closes and photoswitches F2, F3, open, so that a current limited by resistance R3 flows to hold relay M, but not to actuate the latter. Coil T cools so that switch T1 returns to rest position b and MV2 and the series circuit are supplied from phase lead 4 through switches Fl, M1. When the boiler reaches the required temperature thermostat KT opens, valves MV1, MV2, as well as relay M, are de-energized and the gas supply is interrupted. Zener diode Z may be replaced by an ohmic resistance (R4) bridged by a diode (D3) Fig. 2 (not shown). A glow lamp GL is actuated when switch V1 moves to operating position b.
Patent GB-309387-A (GB)
Title: Improvements relating to apparatus for low temperature carbonisation
IPC: C10B1/04
Filed: 1927-12-09
Abstract: 309,387. Pope, P. C. Dec. 9, 1927. Charging and discharging; cooling discharged materials.-An annular retort comprising a tubular member A and a hollow imperforate stem B between which the charge is heated by a furnace D, is discharged by lowering the stem B into a chamber H. The loose coke falls into the chamber, and the coke adhering to the stem is removed bv scrapers G which are rotated about pivots g to permit passage of the stem B. Charging is effected by lowering a conical valve F from a hopper ring E. The coke discharged into the chamber H may be cooled by low pressure steam.
Patent GB-1517357-A (GB)
Title: Illumination apparatus
IPC: A61B17/00
Filed: 1975-08-11
Abstract: 1517357 Operating-table lamps AMERICAN STERILIZER CO 11 Aug 1975 [9 Aug 1974] 33362/75 Heading F4R A convergent beam is produced by the reflector system of an operating-table lamp which includes a source reflector 102, a second reflector 106 to direct light out from the optical axis and a third reflector 108 which produces the convergent beam. In one embodiment, as shown, the second reflector has a concave surface with an axial bore to transmit a narrow direct beam. A Fresnel lens 104 collimates the light from the source and first reflector 102 and absorbs some infra-red radiation. Heat projection is further reduced by coatings on the reflector surfaces to render them transmissive for infra-red radiation. Forced draught cooling may be provided through a space 118 between the third reflector 108 and an outer housing 116. The beam shape may be altered by displacing the second reflector 106 along the axis by means of a handle 114. The source 102 may be quickly displaced and another source positioned in case of failure by a cartwheel mounting arrangement 134, 136. The lamp assembly is pivotally mounted by a yoke 120 carrying pivot arms 122. In another arrangement, the source does not have an integral reflector, a separate first reflector being provided, and the second reflector is domeshaped without an aperture (Fig. 2, not shown).
Patent GB-857852-A (GB)
Title: Automatic steering mechanism for boats
IPC: B63H25/04
Filed: 1955-11-22
Abstract: 857,852. Steering boats automatically. HASLER, H. G., and MAJOR, I. V. Feb. 22, 1957 [Nov. 22, 1955], No. 33482/55. Class 114. A wind-vane 29 detachably mounted in a rotatable frame 28 pivoting about a pin 27 and carrying with it a rod 26 linked to one end of a T-shaped member 21 pivoted at 22 to the deck rotates a shaft 15 through a floating link 18 pivotally connected at its ends to links 19, 17, the former being pivoted to the main rudder 1 and the latter to an arm 16 rigid with the shaft 15: the shaft 15 rocks a yoke 14 pivotally connected by a link 13 to a yoke 12 on an auxiliary rudder 10 mounted within the main rudder in the after edge thereof. The auxiliary rudder may be hydraulically balanced. The wind vane may be a single flat surface or a symmetrical aerofoil and the wind pressure be balanced by a counterweight 30. The pivot 27 may be ahead of the vane and an arm connect the vane thereto, the link mechanism being arranged to produce reverse movement in the auxiliary rudder.
Patent GB-498265-A (GB)
Title: Improvements in or relating to sponge rubber products
Filed: 1937-12-03
Abstract: 498,265. Sponge-rubber sheets. MINOR, H. R. Dec. 3, 1937, No. 33496. Convention date, April 16. [Class 70] A sheet of corrugated sponge rubber is provided for use as a mat, an underlayer for carpets, or upholstery. The sheet may consist of arches having thickened ribs beneath the junctures thereof, or it may be of a simple wave-form. A number of the sheets may be superposed with the corrugations of adjacent sheets extending transversely to form a cushion.
Patent GB-498712-A (GB)
Title: Improvements in hot closets or drying cupboards
IPC: D06F58/10
Filed: 1937-12-03
Abstract: 498,712. Hot closets; air-cooled condensers. CROFT, C. M., REA, D. B., and GLADWIN, J. R. F. Dec. 3, 1937, Nos. 33500/37 and 14704/38. [Classes 34 (i) and 64 (iii)] A hot closet provided with a heater chamber at its base and hollow walls for hot air or products of combustion is combined with a superimposed condenser for separating out moisturefrom the damp air leaving the closet. Articles arranged on racks h in the drying cupboard a are dried by hot air rising from a perforated base plate a<1> spaced from the sides of the chamber and also by streams of hot air emerging from apertures b2 in the sides of the chamber communicating with ducts b arranged in the hollow walls of three sides of the cupboard. A centrally apertured plate is arranged between, the perforated baseplate a<1> and the heater chamber cover plate, air entering through apertures a4 flowing over the latter, through the central aperture of the intermediate plate and thence through the perforated plate a<1> up into the drying cupboard. Air enters the side ducts b through apertures b<1> coincident with the apertures a<4> and is heated by combustion gases from a burner in the heater chamber d flowing through adjacent flues c in the hollow walls to a header e communicating with a chimney. The flues care provided with flat tubular connectors c<1> and with baffles c<2>. The air cooled condenser comprises rectangular-sectioned vertical tubes arranged between tube plates k, k<1>, and closed by a base plate l and cover l<1>, a connecting flue n for the damp air being arranged between the condenser and the hot closet. The condenser is divided into seven passes by division plates m, m<1> and m<2>, the dried air issuing through an outlet o and the condensate falling on to the base plate l which is sloped to form a trough at its lowermost part. Short ferrules p between the upper tube plate and the cover allow circulation of air through the middle of the condenser. The latter is supported by a perforated wall rand insulation is packed between it and the closet. When a gas ring is employed in the heater chamber, the ring may be arranged to be automatically swung out when the door d<2> of the heater chamber is opened, electric heating may be employed.
Patent GB-838810-A (GB)
Title: Height control and leveling valve for air springs
IPC: B60G17/052
Filed: 1958-10-21
Abstract: 838,810. Road vehicle undercarriages. BENDIX-WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. Oct. 21, 1958 [Dec. 9, 1957], No. 33650/58. Class 108(2) An air spring 11 may be controlled by a levelling valve 10 to maintain the vehicle 14 at more than one selected height. For regulation at the normal height the parts of the valve 10 are as shown in Fig. 3. A lever 18 connected at its outer end to the axle, carries an eccentrically disposed roller 84 at its pivotally mounted inner end. The roller 84 has a cam-like relation with a slot 82 in an upper portion 62 of a stepped piston 62, 64. The latter is urged by a spring 65 into engagement with the end of a cavity 52 in a piston 54 which carries a valve member 50. When vehicle load increases, the lever 18 rises, and thus lifts the valve member 50. This lifts a valve 46 from its seat and permits air flow from the reservoir 22 (Fig. 1) to flow via inlet 26, non-return valve 42 and annular chamber 47 in the member 50, to the outlet 12 leading to the air spring. On decreasing of vehicle load, the valve member 50 is lowered and air passes from the air spring via outlet 12 and passage 51 in the member 50, to exhaust to atmosphere at 53. To select a greater height for the vehicle, a valve 28 is reset from a position in which a conduit 32a leading from the base of the valve 10 is connected to amosphere at 34, to a position in which the conduit 32a is connected to the reservoir 22. Pressure air is thus applied to a cavity 78 between the pistons 62 and 84. This forces up the piston 54 and so lifts the valve 46. As air flows to the springs and the vehicle rises, the lever 18 is thereby turned and the piston 64 is accordingly lowered. The valve member 50 and valve 46 are thus brought into closed positions corresponding to equilibrium being attained at the new vehicle height.
Patent GB-1156176-A (GB)
Title: Monoazo Dyes containing a Diacylamido Group
Inventor: WALLACE DAVID JEFFERSON
IPC: C09B29/033
Filed: 1966-07-26
Abstract: 1,156,176. Monoazo dyes. EASTMAN KODAK CO. 26 July, 1966 [26 July, 1965], No. 33669/66. Addition to 1,155,553. Heading C4P. The invention comprises monoazo compounds of the formula wherein R<SP>1</SP> is H or a substituent, R 1  is a carbocyclic aromatic group, R 2  is H, unsubstituted or substituted alkyl or a carbocyclic aromatic group or is the same as -R 3 NXY, R 3  is an alkylene group, and X and Y are the same or different acyl groups. They may be obtained by coupling diazotized 2-aminothiadiazoles with a coupling component of the formula  Examples are given for the production of the dyes. They are useful for dyeing hydrophobic fibres.
Patent GB-1462705-A (GB)
Title: Heat treatment of weld metals
IPC: B23K35/30
Filed: 1974-07-31
Abstract: 1462705 Heat-treating weld metal NIPPON STEEL CORP 31 July 1974 [31 July 1973] 33687/74 Heading C7A Weld metal containing in wt per cent:- is austenitized and then cooled. Preferably the time at austenitizing temperature does not exceed 25 minutes, particularly # 1 minute, and the temperature is above 900C, while after austenitizing the steel may be normalized or quenched and tempered. Alternatively after cooling it may be reheated to a temperature between Ac 1  and Ac 3  and then cool. Before carrying out the heat treatment the weld should be allowed to cool at least to 600C, or until 60% microstructural transformation has occurred.
Patent GB-338168-A (GB)
Abstract: 338,168. Triggs, W. W., (National Paper Process Co., Inc.). Aug. 14, 1929. Drawings to Specification. Printing processes; rotary offset machines.- Paper and like surfaces are treated in order to cause them to reflect whiter light than usual by applying to them in uniformly-distributed areas a light filter, which with the untinted area reflects a combination of colours giving a substantially white effect, the individual tinted and untinted areas being sufficiently small to prevent conscious resolution at the normal viewing-distance. The colour of the pigment is such as to counteract the preponderant colours reflected by the surface and is usually blue. The tinting may be applied to one or both sides of the paper, and serves also to increase the opacity of the paper. The pigment may be applied in a rotary offset web-printing machine, two offset cylinders being preferably arranged to print simultaneously on opposite sides of the web, and a rewind roll being provided for the printed web.
Patent GB-1072041-A (GB)
Title: Polyethers and polyurethanes therefrom
Inventor: AITKEN ROXBURGH RICHMOND
IPC: C08G18/48
Filed: 1963-08-27
Abstract: Hydroxyl group-containing polyethers are prepared from an alkylene oxide and a compound containing at least 2 sites per molecule at which growth of hydroxyl-terminated alkylene oxide polymer chains may be initiated, by a process characterized in that after the start of the reaction there is added an agent capable of providing a new chain growth initiating site on a molecule containing at least one other site, the agent being used in a proportion of at least 10 mol per cent based on the total amount of initiating compound and agent.  The agent may be a compound containing at least two active hydrogen atoms, e.g. water, glycols, amines, carboxylic acids, ammonia &c., or at least one epoxide group and at least one hydroxyl group, or at least one epoxide group and at least one halogen atom per molecule. The agent may be identical with the growth initiating compound.  The agent may be added as a solution in the alkylene oxide.  The polyethers, optionally in admixture with other polyhydroxy compounds, may be reacted with organic polyisocyanates, optionally in the presence of gas-generating agents to give polyurethanes. Catalysts, surface active agents and other additives may be present.  In the examples (1) trimethylolpropane and propylene oxide are added to a mixture of glycerol, KOH and water, (2) epichlorhydrin and propylene oxide are added to a mixture of propylene glycol and KOH, (3) glycidol and propylene oxide are added to propylene glycol and KOH. The products are treated with adipic acid, water, kieselguhr, active carbon and 2-(a -methylcyclohexyl)-4,6 -dimethylphenol and filtered and are reacted with a mixture of tolylene 2,4- and 2,6-diisocyanate in the presence of stannous octoate, triethylene diamine, water and a siloxane-oxyalkylene block copolymer to give polyurethane foams.
Patent GB-179220-A (GB)
Title: Improvements in indicating mechanisms for use with weighing scales
IPC: G01G23/28
Filed: 1920-12-01
Abstract: 179,220. Marks, E. C. R., (Toledo Scale Co.). Dec. 1, 1920. Indicating-mechanism. - In a weighing-scale having two concentrically-pivoted indicating pointers one of which may be moved axially and rotated independently, the axial movement and the independent rotation are effected successively by the engagement of an operating-member, with a spiral cam carried by the pointer so movable. One indicating-pointer 14 is secured' permanently to a spindle 10 driven by a rack 8 from a platform mechanism. The independent pointer 24 is carried by a sleeve 20 loose on the spindle 10 but pressed by a spring 27 into frictional engagement with a disc 19 secured to the spindle. When a receptacle is placed on the platform of the machine, the two pointers 14, 24 rotate together and indicate the weight; if the operator then closes an electric switch, two magnets 40, 31 are energized'. The magnet 40 holds the disc 19 by the magnetic attraction of armatures 42 thus holding the spindle 10 and the pointer 14. The second magnet 31 by attracting its armature 32 rocks a lever 33 the end 35 of which engages a spiral cam 26 on the sleeve 20. The sleeve is thus moved axially out of contact with the disc 19, and is then rotated by reason of the curvature of the cam until the pointer 24 is returned to the zero position. The operator opens the electric switch, and material is then added to the receptacle on the platform and the two pointers again rotate simultaneously until a balance is attained. The pointer 14 then indicates the gross weight, the pointer 24 indicates the net weight, and the difference between the two readings gaves the tare.
Patent GB-1303879-A (GB)
IPC: A22C21/00
Filed: 1970-07-14
Abstract: 1303879 Wetting animal carcases FOOD EQUIPMENT Inc 4 June 1970 [10 June 1969] 34028/71 Heading A2U An apparatus for wetting animal carcases e.g. fowl F or hogs, prior to steaming and plucking or dehairing and for use with a steaming and plucking or dehairing machine e.g. as described and claimed in Specification 1303878 comprises a housing through which Fowl F are conveyed by an overhead conveyor and a series of spray nozzles 238a, 238b mounted on pivotable conduits 234a, 234b at each side of the housing so that in use the nozzles are oscillated to uniformly wet the fowl. The fluid fed to the nozzles comprises a mixture of water and steam, the amount of steam being automatically controlled to produce fluid of the desired temperature. Walls 260a, 260b maintain the heat about the fowl. The housing may comprise steam spray conduits 262a, 262b. The conduits 234a, 234b may be oscillated by eccentric drive arrangements comprising a motor driven by electricity, water, steam or air.
Patent GB-802462-A (GB)
Title: Improvements in or relating to the production of high density polyethylene film
IPC: B29C55/14
Filed: 1956-11-07
Abstract: A biaxially-oriented, substantially-balanced film of high-density polyethylene, i.e. polyethylene having a density above 0.93, is produced by pressure-rolling the film in one direction to elongate it in that direction and then elongating it in a direction transverse to the direction of rolling.  The film is preferably elongated to substantially equal extents in mutually perpendicular directions by calendering between tension-applying rolls, preferably to an extent of at least 3X, where X is the initial dimension of the film, the rolls being maintained at a temperature below the crystalline melting-point but not below room temperture and preferably between 50 DEG  and 110 DEG  C.  Biaxial orientation may also be effected by first rolling the film in one direction and then stretching it in a direction transverse to the direction in which it was rolled, the elongation in the second direction by stretching, preferably being less than was first effected by rolling.  The temperature of stretching is usually from 10 DEG  to 60 DEG  C. above the rolling temperature.  Specification 639,306 is referred to.
Patent GB-326560-A (GB)
Title: Improvements in or relating to refractory articles
IPC: C04B33/13
Filed: 1928-11-20
Abstract: 326,560. Carborundum Co., Ltd., (Carborundum Co.). Nov. 20, 1928. Drawings to Specification. Refractorysubstances containing fluorides, silicates, alumina, magnesia.-A composite binder for a refractory material has constituents soluble in each other in varying proportions so that it continuously matures over a temperature range of at least 300‹ C. for some interval between 1150‹ C. and 1900‹ C. Preferably the melting point curve of the binder approximates to a straight line in the temperature range and the refractory material and binder are stable under reducing conditions above 1300‹ C. and below 1600‹ C. Refractory materials are for example alumina, silicon carbide, magnesite or magnesia spinel and composite binders according to the invention are mixtures of alumina and fluorspar, of magnesia and calcium fluoride, and of diopside (Ca Mg (SiO3)2) and forsterite (Mg2 SiO4).
Patent GB-868136-A (GB)
Title: Improvements in or relating to apparatus for dispensing liquids
Inventor: SANDERSON JAMES ROLAND
IPC: F16K31/58
Filed: 1957-10-31
Abstract: 868,136. Regulating fluid flow; valves. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Oct. 8, 1958 [Oct. 31, 1957], No. 34079/57. Class 135. Liquid enters a chamber 1 by a pipe 2 and due to constant reciprocation of a ball-shaped closure member 6 an intermittent flow of liquid enters a capillary tube 5, the rate of reciprocation of the closure member 6 and the size of the capillary tube 5 being selected so that flow through the latter is continuous. The rate of flow through the capillary tube 5 depends upon the head of liquid in the chamber 1, which head is maintained constant at the level of an overflow pipe 3 leading from the chamber. To avoid the use of overflow the liquid may be fed to the pipe 2 from a float chamber.