baber/WOPTO huggingface dataset:
Patent GB-411813-A (GB)
Title: Improvements in or relating to cinematograph and like apparatus
IPC: G03B1/42
Filed: 1932-09-09
Abstract: 411,813. Kinematograph and like apparatus. COMMUNITY SERVICE, Ltd., 1, Montague Street, Russell Square, London.- (Foster, W. D. ; 4, Wilsey Square, Ridgewood, New Jersey, U.S.A.) Sept. 9, 1932, No. 25183. [Class 97 (i).] Two parallel gate sections are moved outside the range of operation of toothed feeding means during film threading, and their mounting is such that, under the thrust of the feeding means on the film held between them, they remain out of the position they occupy during film feeding until a tooth engages a film perforation, and then move into and are maintained within the range of operation of the feeding means ; means for positioning the film accurately in the gate, independently of the action of the operator, may be provided. As shown, the gate sections 48, 56 are respectively carried by a pin 49, Fig. 3, in a bracket 47, and by a plate 55 extending laterally from a bracket 53 movable perpendicularly to the plate. The pin 49 is urged forwardly by a spring 50, and the bracket 53 is pulled backwardly by a spring 58, the tension of which is greater than that of the spring 50, and is adjustable by a screw 59 and nut 60. During threading, the sections occupy the positions shown in Fig. 5, the bracket 53 being held by a pivoted latch 67 pulled by a spring 71 and engaging a projection 70 thereon. After threading, the latch and projection are disengaged by pressure on a pin 63 in the bracket 47, the pressure being applied by hand or by the door 73 of the casing. The first part of the movement of the pin 63, by engagement of a notch 64 with a projection 65 from an axially rotatable rod 66, turns the rod, against the action of a spring 72, so that its laterallybent end pushes the film completely between the sections 48, 56, and holds it there before the closing movement of the gate begins. The plate 55, by its engagement with a projection 471 from the bracket 47, permits the gate section 48 to remain spaced from the bracket 47, as shown in Fig. 7, so that it may yield to accommodate thickened parts of the film. If the film is threaded so that its perforations are not in position to engage the feed teeth 35 or registering teeth 41, the gate sections do not take up the position shown in Fig. 7 until a feed tooth moves over the film to engage a perforation. The gate sections may be moved to the position shown in Fig. 5 when desired, so as to be out of the range of operation of the feed claws, and to open the gate, by pressure on a projection 115.
Patent GB-924005-A (GB)
Title: New d-homo steroids and a process for their preparation
IPC: C07C/
Filed: 1959-07-22
Abstract: The invention comprises 18-nor-D-homo-13a -androstane compounds of the formula:  <FORM:0924005/IV(a)/1> (in which R1 may represent a keto group, in which R2 and R3 which may be the same or different, will each represent a keto group or a free or esterified secondary alcoholic function in the b -orientation, or alternatively R1, R2 and R3 will each represent free secondary alcoholic functions in the b -orientation) together with processes for their preparation involving the steps of esterifying 3b -hydroxy-18-nor-D-homo-D 13(17a)-androsten - 17 - one to form a difficultly saponifiable ester at C3, enol acylating this ester at C17, brominating the product in the presence of a tertiary base followed by dehydrobromination with lithium carbonate/lithium bromide, re-esterifying the D 11,13(17a)-androstadiene at C17, subjecting the compound thus formed to the action of an alkaline borohydride, re-esterifying at C17, catalytically hydrogenating the product, effecting bromooxidation with an N-bromo-amide, oxidizing at C11 to form a keto group, and debrominating with zinc and acetic acid to yield the corresponding 3b -acyloxy-17b -acetoxy-11-keto-18-nor-D-homo-13a -androstane. Specified products of the invention are 3b -benzoyloxy-17b -hydroxy - 11-keto-18-nor-D-homo-13a -androstane, its acetate, the corresponding free 3b ,17b -diol, 3,11,17-triketo-18-nor-D-homo-13a -androstane, 3b -benzoyloxy-11,17-diketo-18-nor-D-homo-13a -androstane and 3b ,11b ,17b -trihydroxy-18-nor-D-homo-13a  -androstane. Specifications 832,244, 924,006 and 924,007 are referred to.
Patent GB-721067-A (GB)
Title: Improvements in or relating to the production of silver halide photographic emulsions
Inventor: WOOD HENRY WALTER
IPC: G03C1/015
Filed: 1952-10-09
Abstract: Synthetic polypeptides containing free carboxyl and amino substituents in their chains are prepared by copolymerizing glutamic acid and lysine, with or without other amino acids.  The polymerization is effected by fusing the anhydrides or by heating them in a solvent such as dioxan, benzene or pyridine, with a catalyst such as ammonia.  The g -carboxyl group of the glutamic acid is protected during polymerization by esterification, the ester group being subsequently removed by treatment with an alkaline solution, and the e -amino group of the lysine is protected by a carbobenzyloxy radical, removed by treatment with phosphonium iodide or hydroiodic acid in glacial acetic acid. Other amino acids which may be included in the polypeptides are glycine, leucine, phenylalanine, o-acetyl tyrosine and di-amino sebacic acid.  Derivatives of these polypeptides are prepared by reacting the free amino group, in alkaline solution, with an aryl sulphonyl chloride, e.g. naphthalene-2-sulphonyl chloride; an aroyl chloride, e.g. beta-naphthoyl chloride; or an aryl isocyanate, e.g. phenyl or betanaphthyl isocyanate.  The product is precipitated on acidifying. Specification 694,132 is referred to.
Patent GB-745724-A (GB)
Title: Improvements in alarm mechanisms
IPC: G08B13/02
Filed: 1951-10-30
Abstract: 745,724. Theft alarms. LARSEN, F. P. Oct. 30, 1951 [Dec. 18, 1950], No. 25366/51. Class 118(1) An alarm device comprises a box containing a rod 2 which, when the device is set, is capable of vertical motion and to the lower end of which is attached a weight 9 normally resting on the surface on which the box is supported, the weight being so attached to the rod 2 (i.e. by a ring 8 passing through a small hole 7), that on moving the box the weight is displaced and the rod is free to move'downwards under the action of a spring 10 thus operating an alarm, e.g. by closure of contacts 13. The box may be used either as a safe or locker or as a safety device which may be located at a suitable point such as by a door or window or over a stack of documents to. be protected. As shown in Fig. 1 the device is inoperative, and it is set by the rotation of a key 19 through a right-angle, the key being removed through key-hole 19b. This causes the locking member 16 to move to the left, thus disengaging a wedge-shaped member 21 from an extension 22 of the rod 2 and also bringing up a flexible member 16a which bears against the end of the contacts 13 and is deformed in doing so. Upon disturbance of the box so that the weight 9 moves to one side and .the rod 2 falls, the depression of the contacts 13 by the arm 12, allows the member 16a to straighten and prevent the contacts 13 from being opened even if the rod 2 is restored to its original position. In a modification (Fig. 5, not shown), motion of the member 2 operates through rack-and-pinion gearing upon a movable member having a tumbler action and acting upon the contacts 13. In a further modification (Fig. 6, not shown), downward movement of the rod 2 releases a spring-loaded . member to cause the subsequent closure of the contacts 13. The electric-alarm illustrated may be replaced by a clockwork mechanism.
Patent GB-824452-A (GB)
Title: A mechanical shaft seal structure
IPC: F16J15/40
Filed: 1957-08-13
Abstract: 824,452. Stuffing-box substitutes. COMBUSTION ENGINEERING Inc. Aug. 13, 1957 [Oct. 10, 1956], No. 25513/57. Class 122 (5). A mechanical seal structure between a vertical shaft 12, Fig. 1, and housing 10 comprises a ring 17 mounted on the shaft, a seal ring 24 urged into contact with the mating ring, a seal 26 mounted between the seal ring and housing permitting relative movement therebetween, and a chamber 42 containing a fluid which separates the seal 26 from the working fluid. As shown applied to the shaft of a centrifugal pump, the chamber 42 is formed in the seal ring 24 by an annular wall 40 extending up to or slightly past the level of the seal 26 which is located in a lip 30 on a member 32 forming part of the housing 10. The separating fluid, such as mercury, is heavier than and immiscible with the working fluid so that, when the chamber is filled, the working fluid is prevented from flowing round the seal 26 and depositing any sludge which would impede the free movement between the seal ring 24 and mating ring 17. The latter rings may be urged into contact by a spring 46 assisted by the weight of the separating fluid or, alternatively, if the chamber 42 is suitably designed, by the weight of the separating fluid alone. Separating fluid may also be retained above the seal 26 in a chamber 58 formed between the skirt 28 of the seal ring 24 and an annular flange 60 on the member 32 in order to prevent lubricating oil supplied through an inlet 56 for the shaft packing 48 from contacting the seal 26. If desired, a small amount of lubricating oil may be trapped between the lower side of the seal 26 and the separating fluid. In the case of a low-pressure pump (Fig. 3, not shown), in which the mechanical seal is required to prevent the flow of fluid downwardly along the shaft, the separating fluid is retained in a chamber above the seal 26 only, any foreign matter then floating on the surface of the separating fluid. In the modification shown in Fig. 4, the seal 26 is arranged in an extending lip 72 formed on the seal ring 24b and projects into a chamber 70 formed by an annular wall 68 integral with the housing 10. The separating fluid extends upwardly in a chamber 58a which is enlarged at the top by an annular wall 76 formed on the sealing ring 24b in order to avoid the bridging of foreign matter across the gap between the seal ring and housing. If the gap between the seal ring and housing be made sufficiently large to prevent " bridging," the separating fluid need only be contained in the chamber 70.
Patent GB-430326-A (GB)
Title: A process for disintegrating animal and vegetable fibres or cells
IPC: A61K47/00
Filed: 1933-09-14
Abstract: Drugs and hormones are extracted from animal or vegetable materials by treating with an emulsion of an organic or inorganic solvent using an acid or alkaline dispersion of a vegetable mucilage.  A suitable emulsion is prepared by agitating a mixture of heavy benzine and trichlorethylene, having a specific gravity just above 1, with an aqueous solution containing agar-agar, carragheen moss and gum tragacanth together with a small amount of oxalic acid.  To the resulting emulsion a little formalin and butyl alcohol is added to form a stock emulsion which is diluted with water before use.
Patent GB-171527-A (GB)
Title: A method of fixing insulating rings on shafts
IPC: F16D1/08
Filed: 1920-09-04
Abstract: 171,527. Electrotechnische Industrie voorheen W. Smit &. Co. Sept. 4,1920. Addition to 1317,320. Securing insulated ring on shafts.-In fixing insu lated rings to the shafts o alternating-current genera tors &c., an insulating layer 2 made up of thin overlapping strips of paper fibre, Rc, is fitted within the grooves or plain bore of the ring 1, and is itsel engaged by an expansibl ring 3 of non-metalli material, with alternately arranged cuts or spli throughout its length, th whole being forced axially upon and frictionally grip ping the shaft 4.
Patent GB-317829-A (GB)
Title: An improved apparatus for closing the openings of sewer lines, rubbish receptacles and other like openings
IPC: E03F5/04
Filed: 1929-08-22
Abstract: 317,829. Rocas, O. Aug. 23, 1928, CConvention date]. Check hinged valves. - An automatically operating circular or rectangular closure for sewers, milk pipes, rubbish boxes and tubes, &c. for preventing the passage of mosquitos, mice, &c., comprises a hollow frame A, a counterweighted hinged lid or flap B, and a hollow boxlike structure C open at the bottom and closed at the top. It may be used under the gratings of traps. The frame A has inwardly and outwardly projecting flanges at the top, and its inner face is curved to correspond with the path of the edge of flap B. It is provided with a boss to limit the movement of the flap B. The latter is mounted on trunnions on the frame A, the part beyond the trunnions being weighted and operating beneath the cover C, which is bolted to the frame A.
Patent GB-707882-A (GB)
Title: Method of processing carbon granules
IPC: H01B1/04
Filed: 1950-10-20
Abstract: <PICT:0707882/III/1> Microphonic carbon granules are treated by continuously agitating the granules in a container with a rapidity, an intensity and for a time sufficient to increase their electrical resistance to a value that will remain substantially stable during use.  The resistance may be increased by 100 per cent. by rapidly vibrating the granules.  Carbon is fed into small tube 13 and thence to larger tube 14 which is inclined downwardly and mounted on support 18 and the tubes are vibrated by making support 18 the armature of an electromagnet.  The rate of flow, which with the vibration intensity controls the degree of stabilization, is controlled by adjusting the space 15 between tubes 13, 14 by means of screwed portion engaging fixed threaded tube 16, while the vibration intensity is adjusted by regulating the voltage, e.g. at 110 volts 60 cycles, applied to the electromagnet windings.  The carbon passes from tube 14 through resistance measuring cells.  An atmosphere of nitrogen or hydrogen may be used in place of air. Specification 272,279, [Class 40 (iv)], is referred to.
Patent GB-824143-A (GB)
Title: Improvements in the production of ceramic compositions
IPC: C04B41/50
Filed: 1957-08-15
Abstract: 824,143. Enamels. HENKEL & CIE G.m.b.H. Aug. 15, 1957 [Aug. 16, 1956], No. 25733/57. Class 56. To increase the plasticity and/or dry strength of ceramic compositions such as enamels or glazes, 0À05% to 5% by weight of an ester of a macro-molecular uronic acid is incorporated therein. Preferably the ester is water soluble. A glycol ester of alginic acid is preferred. A number of examples are given.
Patent GB-507275-A (GB)
Title: Improvements in self administering air and gas apparatus
IPC: A61M16/10
Filed: 1938-09-02
Abstract: 507,275. Anaesthetic apparatus. DENTAL MANUFACTURING CO., Ltd., and AINGE, H. J., and BETTS, C. F. Sept. 2, 1938, No. 25752. [Class 81 (ii)] Relates to self-administering, anaesthetic apparatus, of the character comprising a gaspressure reducing valve in a chamber 3 connected to a cylinder 2 and to a valve 17 operated by respiration to' deliver an air and anaesthetic-gas mixture to the patient through a'valve opened on contact of a mask or mouthpiece 15 with the face, in particular to apparatus described in Specification 463,492. In order to ensure rapid analgesia a byepass, comprising flexible tubes 8, 10, and including a gas bag 9, is connected between the chamber 3 and the mask or mouthpiece valve to supply initially a few breaths of pure gas to the patient. As shown, the tube 10 has a connection with the fitting 13 carrying the breathing hose, between which connection and valve 17 a non-return valve is provided. The tube 8 is controlled by a screw-down valve 7. The apparatus is mounted in a portable casing 1 or carried on a stand. The mask control valve comprises a sleeve 18, carrying the mask, and slidable, relative to its casing against a spring on pressing the mask on the face to bring a port therein into register with the gas-andair supply tube.
Patent GB-341903-A (GB)
Title: Improvements in and relating to the regulation of the voltage of a power supply system or other a.c. circuit
IPC: H02M5/12
Filed: 1929-08-23
Abstract: 341,903. Systems depending on static transformers. FERRANTI, Ltd. and NORRIS, E. D. T., Hollinwood, Lancashire. Aug. 23, 1929, 25759. [Classes 38 (ii) and 38 (iv).] Voltage regulation of a supply circuit S1' S2 as shown in Fig. 7 is effected by moving a shortcircuited coil 4 into close magnetic association with either of the primary windings 2, 3, between which is considerable leakage reactance, of a boosting transformer, in order to vary the relative impedance of the windings 2, 3. In Fig. 7, the coil 4 is shown in close association with winding 2, the drop across which is reduced resulting in a reduced voltage in the secondary winding 7. The secondary windings 7, 8 are in opposition and " boost " and " buck " are therefore varied. As shown in Fig. 6 choking coils 5, 6 are shunted across the primary windings and a short-circuited coil 4 is brought in or out of close magnetic association with either of the choke coils which may be wound on the same core provided there is considerable leakage reactance between the coils 5, 6. The Provisional Specification describes also a means of effecting regulation by varying the relative reluctance of the magnetic circuits of the windings by arranging one of the windings around an air gap and providing a sleeve of magnetic material which is capable of movement along the core axis so as alternatively to bridge the air gap or to rest upon one end of the core adjacent to the gap.
Patent GB-1394235-A (GB)
Title: Chemical immobilization of fission products reactive with nuclear reactor components
IPC: G21C3/62
Filed: 1972-06-02
Abstract: 1394235 Nuclear fuel GENERAL ELECTRIC CO 2 June 1972 [16 June 1971] 25775/72 Heading G6C Oxide nuclear fuel contains ¢-4% by weight of an additive which combines with fission products in order to prevent reaction between the fission products and reactor components, especially the canning material. Additives which may be used are silicates containing Al, Ca and Mg, titaantes of Al, Si and Ca/Si, a caesium-graphite compound such as C 64 Cs or C 32 Cs, and mixtures thereof. The additive may be incorporated in the fuel material or coated on fuel pellets. Reference is made to reaction with the fission products Cs, Rb, I and Te.
Patent GB-1390050-A (GB)
Title: Ball valve with resilient seal
IPC: F16K5/06
Filed: 1972-12-14
Abstract: 1390050 Valves BAKER OIL TOOLS Inc 14 Dec 1972 [22 March 1972] 25783/74 Divided out of 1390049 Heading F2V The subject-matter of this Specification is identical with that described in Specification 1,390,049, but the claims relate to a ball valve between upper and lower sleeves in an outer casing, the ball being rotated between its open and closed positions by longitudinal adjustment of the sleeve 5, wherein the fluid pressure across the ball is equalized via a by-pass valve prior to the ball being adjusted from its closed position.
Patent GB-959729-A (GB)
Title: Apparatus for the high frequency welding of plastic foils to form pipes
IPC: B29C53/40
Filed: 1962-07-05
Abstract: 959,729. Mounting electrodes in dielectric heating apparatus. WASAG-CHEMIE A.G. July 5, 1962 [July 5, 1961], No. 25906/62. Heading H5H. [Also in Division B5] Apparatus for the high-frequency welding of plastic foils to form pipes comprises a metal block 2 containing a bore 3 of the same diameter as the external diameter of the pipe that is. to be formed and having a longitudinal slot 4 extending from a generator of said bore to the outside of the block, an electrode 5 which is insulated from the metal block and projects into said slot to end flush with the inside surface of said bore, and an expansible sleeve 14 centrally inserted in said bore together with an elastic tube 25 located therein, of which the interior is connectable to a source of compressed air. The block 2 is mounted on a base-plate 1 and the electrode 5 and its insulation 6 are either adhesively bonded or cast into a cover 8 attached to the block 2 by screws 9. The electrode 5 contains a duct 7 for a heating medium and has a connecting lug 10. A cylinder 17 secured by a releasable fastening 20 to a bracket 12 secured to the base-plate 1 has integral cones 21 and rings 22 with screws 23 which bear against hollow movable members 24 to clamp the elastic tube 25 in position. Compressed air admitted through a pipe adapter 19 passes through holes 26 in the cylinder 27 to the elastic tube 25 and expands same against a series of longitudinally extending pressure-transmitting bands 14, each secured at one end to a member 13 forming part of the bracket 12 and at the other end to a piston 15 having a seal 16 and serving to tension the bands 14. A foil of plastic material to be welded is pulled into the annular gap 29 between the bands 14 and bore 3 with the region of overlap located under the electrode 5.
Patent GB-949595-A (GB)
Title: Improvements relating to air-conditioning installations on vehicles
IPC: F24F11/08
Filed: 1961-07-18
Abstract: 949,595. Ventilating vehicles. DAIMLERBENZ A.G. July 18, 1961 [July 27, 1960], No. 26048/61. Heading F4V. A vehicle ventilating system includes a fresh air duct 6 which contains a heater 7, a fan 8 and a flap valve 10. The heater 7 has a source of heat independent of the vehicle engine which can be automatically switched on and off by a switch 38 independent of the ignition switch 37. A second fresh air duct 17 and recirculation duct 20 enter a common duct 25 which then forks into ducts 26 and 27 entering the interior of the vehicle. A third fresh air duct 1 supplies a demister duct 11 and a duct 12 entering into the passenger compartment. The evaporator 29 of a refrigerating system is used as a cooler in duct 26. Heat exchangers 2 and 30, supplied with engine coolant heat the air in ducts 1 and 27. A temperature selector 45 has three operating positions: "heating," " ventilating " and "cooling"; and is shown in the heating position. When the engine is first started, with the coolant below the required temperature for heating, heating is supplied by the independent heater 7. A current is supplied to the heater 7 from the battery 40 via the lower limb of the ignition switch 37, contact arm 47 of the selector 45, arcuate contact 50, switch 69 of the two-pole switch 71 and lines 43 and 42. When the engine coolant has reached the desired temperature, say 25 C., a thermostat 58 operates switch 71 and piston valve 57. A twospeed blower switch 72 is supplied via line 68 from switch 71 and supplies current to the two fan motors 3 and 24, when the current supply to the independent heater is cut. Valve flaps 5, 31, 21 and 19 are operated hydraulically via slide valves 57, 55 and lines 63, 64 and 65. Electrically heated temperature sensing means 23 is supplied with current via the rheostat 49 of the selector 45 to control the amount of hot engine coolant entering heat exchangers 2 and 30. Extra heat for demisting is obtained by pulling rod 33, thereby closing switch 36 which cuts in the independent heater 7. " Ventilating " is obtained with contact 47 in the midway position between the arcuate contacts 50 and 52 of the selector 45. In this position, no current is supplied to either the electrically driven engine coolant pump 61 or the compressor 62 of the refrigerating system. " Cooling " is obtained with contact 47 across the arcuate contact 52 and rheostat 51. In this position, slide valve 55 shuts off line 65, and only flap valve 19 is actuated hydraulically via line 64 and valve 57. With flap valve 5 closed, the circuit to earth of fan motor 3 is incomplete so that only fan motor 24 operates. Air is directed over the cooler 29 and the electrically heated temperature-sensitive means 28 which controls the amount of refrigeration. The independent heater 7 is electrically heated or may be an electrically ignited burner supplied with fuel from the storage tank of the vehicle.