baber/WOPTO huggingface dataset:
Patent GB-619112-A (GB)
Title: An improved refrigerating system
IPC: F25B1/06
Filed: 1946-11-21
Abstract: 619,112. Refrigerating. MEYER, L. Nov. 21, 1946, No. 34562. Convention date, Feb. 24, 1942. [Class 29] In a refrigerating system comprising a boiler 10, an ejector 12, condenser 13, receiver 14 and evaporator 16 and using e.g. sulphur dioxide as the refrigerant, the boiler 10 is cyclically boiled totally dry to make the system automatically intermittent. Liquid refrigerant is boiled in boiler 10. vapour passing by a pipe 11 to the ejector 12 where it sucks vapour from the evaporator 16, compressing this vapour, condensation taking place in condenser 13. The liquid is collected in receiver 14 whence liquid is fed through a valve 15 to the evaporator 16. When all the liquid has been boiled from boiler 10 into the receiver 14, the ejector stops working and pipe closes. The pressure in the boiler 10 drops allowing a float valve 1 to open and liquid may then drain from receiver 14 by a pipe 20 into the boiler 10. The ratio of the amount of liquid to the heat supplied is so chosen that all the liquid has time to drain from the receiver 14 before the pressure in the boiler 10 is great enough to close the valve 1. It is stated that the driving fluid and the refrigerating fluid may be different substances.
Patent GB-210594-A (GB)
Title: Change-speed gearing for motor vehicles
IPC: F16H3/00
Filed: 1922-12-21
Abstract: 210,594. Alltree, A. Dec. 21, 1922. Variable-speed gearing.-A four-speed gear for motor-vehicles comprises three constant-mesh helical toothed gears d, e, f, n, o, p for the. two middle speeds, and a disengage able spur pair g, m for the lowest speed. The highest speed is a direct drive obtained when a double clutch c splined on the driven shaft b is engaged with a clutch end d<1> upon the driving-shaft a. The opposite position of the clutch c yields the highest countershaft speed. The gear e is loose, and the pair f, g fast upon the shaft b. The gear n is loose, and the pair o, p fast upon the countershaft l. The gear m is on a sleeve splined on the shaft l and having a clutch end m<1> adapted to engage a clutch face n<1> upon the gear m for the secondlowest speed. A form of reversing-gear is shown in Fig. 2. The gear m is always in mesh with a long idler y and these gears are advanced alternatively into mesh with the wheel q for the lowest forward and reversed drives respectively. In another reversing gear shown in Fig. 4, the clutch end m<1> is replaced by gear teeth m <2>which engage clutchwise for the second lowest forward speed and also drive an idler y. The clutch sleeve m<3> and the idler are connected by a yoke z to move together. To pass from lowest forward to reverse drive, the gear m is moved beyond the wheel g to the right until the idler y comes into engagement.
Patent GB-650550-A (GB)
Title: Improvements in or relating to the shaping of work pieces by hammer-like tools
IPC: B21J7/14
Filed: 1947-12-30
Abstract: 650,550. Forging-machines; dies. SAXER, A. Dec. 30, 1947, No. 34815. Convention date, Nov. 13, 1946. [Class 83 (iv)] In forging axially symmetrical workpieces the final dimensions are automatically controlled by a template. The stroke position of three radially sliding press tools 13 is continuously adjusted by.a feeler 15 engaging the template 14 on a sliding head 9 which feeds the work through the tools while rotating it axially. The tools 13 are crank driven and the eccentric bearings 20 are rotated by a gear ring 19 rack driven from a servomotor 16 controlled by the feeler 15. The tools 13 contact at the minimum work diameter, see Fig. 4, and are curved to correspond with the initial blank diameter. The cranks 2 are gear and belt driven from an auxiliary power source and for hard work, forging is done hot. The template 14 is shaped to allow for extension of the work during forging and special tools may be used for forming necks, shoulders, &c.
Patent GB-1141710-A (GB)
Title: Improvements in electric cables
Inventor: LAWRENSON THOMAS
IPC: H01B11/00
Filed: 1966-08-04
Abstract: 1,141,710. Cables. BRITISH INSULATED CALLENDER'S CABLES Ltd. 3 Aug., 1967 [4 Aug., 1966; 17 Aug., 1966], Nos. 34940/66 and 36827/66. Heading H1A. In a telecommunications cable with a loosely fitting sheath, the core comprises at least seven minor units (single insulated conductors) or at least three major units (twisted pairs or quads). The units may all run parallel, or have a length of lay greater than five feet, and the sheath may be circular or of flat cross-section. A telephone cable, shown in Fig. 1, comprises sixty pairs of P.V.C. insulated copper conductors 1, an aluminium tape screen 2, with overlapping edges, and a loosely fitting P.V.C. sheath 3 with a discontinous rib 4, tapping or cutting points being made between adjacent parts of the rib. The position of the overlapping edges in the screen may be indicated by an ink line or printed legend in the sheath, or by shallow grooves in the sheath which guide the slitting knife. Spacers may be provided between the units and the sheath.
Patent GB-916962-A (GB)
Title: Improvements relating to a method and means for drying webs in printing machines
Inventor: BROOKS FRANK
IPC: B41F23/04
Filed: 1957-11-08
Abstract: 916,962. Drying fabrics in long lengths. SUTCLIFFE, SPEAKMAN & CO. Ltd. Feb. 9, 1959 [Nov. 8, 1957], No. 34970/57. Class 34 (1). [Also in Group XVI] Drying apparatus.-A drying apparatus for a web 2 coming from printing cylinders 3 comprises a drying stretch divided into a series of zones, viz., zone 1 in which air is sucked direct to a solvent recovery plant, zones 4, 5 in which warm air and hot air respectively is applied at low and high velocities, a zone 6 in which cooler although warm air is applied with the velocity of the air in this zone gradually increasing in direction of travel, and finally a second cooling zone 7 in which a large volume of air is directed at a high velocity on to the web. The air to zones 4, 5, 6 is propelled by pump 10 and drawn off by pumps into the solvent recovery plant. The drying stretch comprises a narrow U-shaped hood divided into zones and air is angularly directed in a narrow jet against the direction of travel of the web.
Patent GB-289844-A (GB)
Title: Improvements in or relating to boilers for heating systems
IPC: F24H1/24
Filed: 1927-12-24
Abstract: 289,844. Digeon, C. May 4, 1927, [Convention date]. Closed solid-fuel stoves; combined solid-fuel and gas or oil stoves; gas cooking-stoves; baffles; boilers, arrangement of. - Two separate heating means are used wholly or partially acting on the same heating parts of a boiler for central heating. In the example, Fig. 1, the opposite slab-like walls 1, 2, of a fire chamber, with coal &c. grate 33, are provided with ribs or corrugations on both sides, those 8 on the outer sides serving to space the slabs from the insulating walls 6, 7 to provide flue spaces through which pass the gases from gae or liquid-fuel burners 4, 5. Separate flue connections are provided, the exit from the chamber 11 connected with the side flues being controlled by a register 15. In the modification, Fig. 4, additional water-walls 6<a>, 7<a>, are provided and a gas or liquid-fuel cooking range is shown combined with the boiler. In the cooker, gas burners 26 supply heat to roasting and baking ovens 25, 24, baffles 27 being provided.
Patent GB-385738-A (GB)
Title: Improvements in and related to direction indicators for road vehicles
IPC: B60Q1/34
Filed: 1931-12-18
Abstract: 385,738. Road-traffic signals on vehicles. READ, J., 85, Durbar Avenue, Coventry. Dec. 18, 1931, No. 35136. [Class 118 (ii).] Manoeuvresignalling apparatus on road vehicles of the kind wherein different colours are simultaneously displayed on opposite sides of the vehicle comprises two pairs of compartmented casings 1 arranged on opposite sides of the vehicle at the front and rear, each casing having lamps adapted to be selectively lighted behind green and red transparencies 6a, 7a, and behind an amber transparency 5a in one wall of the casing, the other wall of the forward casings having similarly coloured tell-tale spot transparencies 18. Circuits are described whereby the first movement of a rotatable switch to, say, the right lights the amber signals 5a on both sides, while the next movement to the right lights the red arrows 7a on the right and the green arrows 6a on the left. Alternatively, the first position of the switch on the right may give a red warning at both back and front to indicate that the vehicle is about to pass a slower vehicle. The switch may be actuated at will either by the steering gear or by hand.
Patent GB-1284718-A (GB)
Title: A method of manufacturing a hectographic paper
IPC: B41M5/04
Filed: 1968-07-23
Abstract: 1284718 Cellulose ether compositions KORES MFG CO Ltd and W POPIOLEK 25 June 1969 [23 July 1968] 35151/68 Heading C3F [Also in Division D2] Compositions for hectographic transfer sheets (see Division D2) are made, in the examples as follows: (1) ethylhydroxyethyl-cellulose is dissolved in toluol and mineral oil added; zinc stearate is dissolved in methylated spirits with warming, the solution cooled and methyl violet then dissolved in it; the toluol solution is added to the methylated spirit solution with fast stirring, and the resulting composition coated on to paper; a protective layer of wax is applied; (2) "Methic" ( Registered Trade Mark) copying black is dissolved in methylated spirits, ethylhydroxyethyl-cellulose, microcrystalline wax, mineral oil, mineral jelly and toluol are heated together to form a solution which is then cooled and stirred into the methylated-spirit solution, which is applied and overcoated as in Example 1.
Patent GB-1475726-A (GB)
Title: Thermostatic expansion valve assembly for refrigeration installations
IPC: F25B41/06
Filed: 1974-08-09
Abstract: 1475726 Refrigerating DANFOSS AS 9 Aug 1974 [13 Aug 1973] 35223/74 Heading F4H [Also in Divisions F2 and G3] An expansion valve for refrigerant has a thermally actuable power means 31 and two valves 16, 24 providing variable restrictions in series one valve 24 being operable by the means 31, the other responding to pressure difference across the valve so that its restriction is reduced as valve inlet pressure increases relative to outlet pressure. As shown capillary tubing 33 connects the power means 31 to a temperature sensor in a refrigerant evaporator (not shown) where a temperature change causes displacement of an auxiliary valve 26 and "follow up" of piston 22, across which pressure balance is maintained via restriction 24 so that the restriction between valve and seat 21, 20 is inversely dependent on evaporator temperature. The valve and guide piston 16, 13 are pressure balanced with respect to P 1  so that displacement of valve 16 against a spring 12 is dependent on P K -P 0 . In alternative embodiments the two valves 44, 47 Fig. 2 and 68, 64 Fig. 3 may be combined, flow passing either firstly through the thermally controlled restriction. Fig. 2 or through the pressure difference restriction Fig. 3.
Patent GB-1194544-A (GB)
Title: Liquid Crystal Detector
Inventor: BRENDEN BYRON BYRNE
IPC: G02F1/13
Filed: 1967-08-01
Abstract: 1,194,544. Indicating acoustic intensity distribution. BATTELLE DEVELOPMENT CORP. 1 Aug., 1967 [3 Aug., 1966; 8 Feb., 1967], No. 35229/67. Heading H4D. Apparatus for detecting the interference maxima and minima of two interfering ultrasonic beams comprises a thin film 25 of a cholesteric liquid (e.g. cholesterol chloride) sandwiched between two glass plates, two membranes, or a glass plate and a membrane, the optical properties of the film (reflection, transmission, birefringence, circular dichroism, optical activity, colour) being modified according to the ultrasonic intensity distribution. The apparatus may be used for detecting an ultrasonic hologram as described in Specification 1,194,543.
Patent GB-1346038-A (GB)
Title: Optical enlarging device
IPC: G03B21/10
Filed: 1972-07-27
Abstract: 1346038 Optical projection apparatus OPAQUE SYSTEMS Ltd 27 July 1972 [27 July 1971] 35231/72 Heading G2A A projector has a base 12 carrying a plate 28 slidable on a plate 26, which in turn is slidable a base 12, to permit a document placed on the plate 28 to be moved in mutually perpendicular directions. Adjustably mounted above the base 12 is a carriage 20 having a housing 71 containing lamps 70 for illuminating the document and a lens 76 and mirror 92 for directing an image of the document on to mirror 90 and thence via mirror 88 to screen 36 located in structure 34. The housing 71 also includes a fan for withdrawing hot air around the lamps 70 and the lamps are located on a withdrawable tray (not shown) attached to facia 84 bearing a lamp dimmer control 85 and a lens focusing control 78. The housing 71 is supported by arms 40 and a plate 44. Two bolts 41 attaching the plate 44 to the base 12 also support a rod which has two springs (not shown) mounted along its length. These springs counterbalance the weight of the housing 71 and structure 34 so that it can be adjusted relative to the base 12 and maintain any position to which it is moved.
Patent GB-487941-A (GB)
Title: Improvements in processes of and apparatus for imbibition printing
IPC: G03C7/25
Filed: 1936-12-28
Abstract: 487,941. Electric control systems. I. B. CORPORATION. Dec. 28, 1936, No. 35509. Convention date, Dec. 28, 1935. [Class 40 (i)] [Also in Group XX] In a process of and apparatus for printing in multicolour from a set of photographically prepared gelatin matrices, the blanks and the matrices are fixed to supports and carried through cycles, the cycle for the matrices being automatically controlled and comprising applying excess dye to the matrices and removing part of this dye. The removal may be effected by washing with sprays. In one form, the matrices pass under sprays delivered by an oscillating tube, which may be cut off in part by a movable hood. A pin 252 on the carrier 11 for the matrices and mounted in advance of the matrix, closes a switch to set in operation a motor P which draws the hood 50 upwards. At the top of its travel, a pin on the hood closes the cut-out switch 278 causing the motor to stop and the hood then returns under gravity. A second pin 254 occupying a pre-set position on the front of the matrix support then closes one of a row of switches 290 bringing a stop 265 into the path of the hood 50 as it returns.
Patent GB-355144-A (GB)
Title: Manufacture of esters of derivatives of cellulose or other carbohydrates
IPC: C08B3/00
Filed: 1930-11-26
Abstract: Organic derivatives of cellulose, of cellulose transformation products or of other carbohydrates are esterified by treatment with a free carboxylic acid or mixture of such acids in the presence of liquid sulphur dioxide.  As condensing agents, the known substances may be used; sulphuric acid may be produced by a limited oxidation of the sulphur dioxide.  The velocity of the reaction may be increased by increasing the pressure due to the use of sulphur dioxide by the addition of an inert gas or of compressed air.  In examples, (I) diethyl cellulose is esterified in the presence of liquid sulphur dioxide by means of formic acid, (2) a cellulose aceto-butyrate is obtained from a partially acetylate cellulose and butyric acid in the presence of liquid sulphur dioxide and of sulphuric acid as catalyst, (3) methyl cellulose is swollen in liquid sulphur dioxide and esterified by acetic acid in the presence of chromic anhydride, the pressure being raised by the addition of nitrogen, (4) hydroxypropyl starch is stirred with liquid sulphur dioxide, zinc chloride and acetic acid.  The esters and etheresters of cellulose may be worked up into threads or films by the processes of Specifications 348,931 and 348,959.
Patent GB-1379000-A (GB)
Title: Printer
IPC: B41J25/308
Filed: 1973-07-26
Abstract: 1379000 Selective printing NCR CORP 26 July 1973 [4 Aug 1972 (2)] 35609/73 Heading B6F A printer comprises a print carriage 20 on which a print head 22 is mounted for movement towards and away from a platen 26 according to the thickness of the record medium, the print head 22 being biased towards the platen 26 by a spring 114 and a sensing means 32 being provided to contact the record medium. The sensing means may comprise a shoe (146, Figs. 1, 4, not shown), pivotally mounted on the print head, or a finger (204, Fig. 11, not shown), which engages a tape (200) pressed against the record medium. The print head may comprise wire printing elements 92, and may be letterspaced by a lead screw 48. A lever 116 is provided to withdraw the print head from the platen for insertion of the record medium.
Patent GB-761482-A (GB)
Title: Improvements in or relating to products made from rimming steel
IPC: B22D27/02
Filed: 1953-12-23
Abstract: 761,482. Casting-processes. JUNGHANS, S. Dec. 23, 1953 [Dec. 27, 1952], No. 35794/53. Drawings to Spedification. Class 83 (1). In casting an ingot from rimming-steel, the ingot, during its formation in the mould and before the formation of gas-bubbles occurs, is subjected to a non-static magnetic field and, at the same time, chilled. The ingot may be formed by continuous-casting and the field is, preferably, an electromagnetic one rotating about an axis parallel to the axis of the mould. The resulting ingot is stated to be free from blowholes. Specifications 699,156 and 761,455 are referred to.
Patent GB-429366-A (GB)
Title: Improvements in or relating to tube cleaning apparatus for boilers and the like
IPC: F28G3/16
Filed: 1933-12-20
Abstract: 429,366. Boiler cleaners. HANDOLL, P. G., 340, Brownhill Road, Catford, and DIAMOND BLOWER CO., Ltd., 91, Bishopsgate, both in London. Dec. 20, 1933, No. 35824. [Class 99 (ii)] In a cleaner for fire-tube boilers of the kind in which steam is directed onto the tubes from a rotatable nozzle tube 17, the nozzle tube is provided with three or more jets 80, 84, 89 which are drilled in a removable cap 21 on the end thereof at different angles to its axis. The jets most inclined to the nozzle axis are so located that the steam therethrough follows a path starting on one side of the axis and crossing to the other side, and preferably the jets 84, 89 are reversed in inclination relatively to the jet 80 so that the reactions of the former balance that of the latter, thus avoiding lateral pressure on the nozzle. The invention is intended to be for use more particularly in boiler cleaners of the kind described in Specification 429,365.
Patent GB-819996-A (GB)
Title: Improvements in or relating to sound transducing apparatus
Inventor: CHALLIS WILLIAM SIDNEY
IPC: G11B21/12
Filed: 1956-11-23
Abstract: 819,996. Sound recording or reproducing apparatus. ELECTRIC & MUSICAL INDUSTRIES Ltd. Nov. 4, 1957 [Nov. 23, 1956; Feb. 28, 1957], Nos. 35830/56 and 6713/57. Class 40 (2). A modified back-spacing mechanism for the sound transducing apparatus described in Specification 697,161 in which a magnetic transducing head is traversed across a disc record by a toothed tracking wheel engaged in a spirally grooved tracking disc, mounted concentrically with the record and back-spacing is achieved by means of an electromagnet operating a pawl, each back-spacing impulse being manually initiated by the operator. The present invention discloses means for initiating backspacing either manually or automatically, the operation continuing automatically until stopped by the transducing head reaching a predetermined position. In Fig. 3 the coil of the pawl-operating electromagnet 5 is connected to the current supply through switches 12 and 13. A switch 7, operated by a telescopic adjustable member 8 controls a solenoid 11 which when energized closes the contacts 12 and also closes maintaining contacts which keep the solenoid energized. A cam 14 opens and closes the contacts 13 providing pulses to the coil 5 and effecting continuous back-spacing until the member 8 opens switch 6, which is normally closed during recording, de-energizes the solenoid and reproduction commences. Fig. 1 shows a device for automatically setting the position of the member 8 to initiate back-spacing at the end of a reproduction of a recording. A shaft 13 is biased by a spring 17 to rotate so as to wind on to the pulley 12 a cord 11 attached to one end 10 of the member 8. Rotation is normally prevented by a ratchet wheel 18 and a pawl 19. At the commencement of recording, with the transducing head at the outer edge of the record and the spring 17 tensioned, the solenoid 20 is energized and the member 8 moves inwards to contact (but not operate) the switch 7, as recording proceeds the member 8 is displaced relative to the bracket 9. At the end of a recording the turntable 1 is stopped and the solenoid 20 de-energized to lock the shaft 13. Back-spacing can then be initiated and the bracket 9 and member 8 return with the transducing head to the beginning of the recording. Upon reproduction being initiated the transducer moves inwards until the member 8 operates the switch 7 when back-spacing occurs. In a modification the cord and pulley are replaced by a rack and pinion and the spring 17 by a long tension spring connected between the bracket 9 and the member 8.
Patent GB-467036-A (GB)
Title: Improvements in oil-bath rollers for conveyor belts
IPC: B65G39/09
Filed: 1935-12-28
Abstract: 467,036. Bearings for conveyer rollers. SPENCE, W. L. Dec. 28, 1935, No. 35893. [Class 12 (i)] [Also in Groups XXIV and XXX] A roller, idler pulley, or the like has an end piece B fixed oil-tight in a drum A, a floating bush D, thrust washers E, L, and a packing ring F. The bush is located endwise by a shoulder on the spindle M and by a spring ring G. The member B has a web with an oil filling duct H and another web with a duct K to return oil collecting in an annular groove N back to the oil reservoir in the drum. The drum can be placed on its end without oil leakage occurring. Specification 433,049 is referred to.
Patent GB-1311401-A (GB)
Title: Flame retardant nylon compositions
IPC: C08K5/03
Filed: 1971-07-30
Abstract: 1311401 Plastics coated sized filaments DART INDUSTRIES INC 30 July 1971 [5 Aug 19701 36025/71 Heading B2E [Also in Divisions C3 and D1] Continuous sized filaments are further coated by passing through a molten blend comprising nylon, Sb oxide, and a non-plasticizing free-flowing organic material of m-p. >350‹C containing >50% combined Cl. Based on total weight of the product there are, by weight: 5-50% fibres, 1-10% Sb oxide, and 5-30% of the organic material. The chlorine-containing material may be compounds containing at least one chlorinated norbornene moiety (N) having 2 adjacent carbon atoms in common with another ring (R). (N) may contain # 6 Cl atoms. Ring (R) may contain 4-12 C atoms, and may be saturated or unsaturated and may be substituted with O, Cl, OH or -OSO 2 Cl. The material may have particle-size 2-5Ám and m.p. >350‹C. The Sb oxide may be Sb 2 O 3 , Sb 2 O 4  or Sb 2 O 5 . Also present may be 0.04-1% of stabilizer of the type used to stabilize PVC- e.g. Ba, Cd, Zn, or Pb compounds, epoxy compounds, organotin mercaptides, or carboxylates; Ba/Cd compounds, tetraphenyl tin, dialkyl tin dialkanoates, dialkyl tin maleates, dialkyl tin S, S<SP>1</SP>-bis-alkyl-mercaptoacetates, 0.5-5% polyethylene may also be included. Other conventional additives may be present. The fibres may be asbestos or glass and are sized with polyvinyl acetate or vinyl silane, to improve adhesion. After coating, the material is cooled to solidify the molten materials, and chopped into segments in which the fibres extend from one end of the segment to the other. The segments may have length 1/16 to 1¢ inches, and transverse dimension 1/16 to 1/4 inch. The product is flame-retardant.