baber/WOPTO huggingface dataset:
Patent GB-646828-A (GB)
Title: Process for preparing artificial oestrogenic compounds and products obtained thereby
IPC: C07C59/52
Filed: 1948-02-26
Abstract: Oestrogenic compounds of the formula <FORM:0646828/IV (b)/1> (in which X is hydrogen or a methyl or ethyl group and R1, R2 and R3 are methyl or ethyl groups) are prepared by dehydrating the alcoholic compound <FORM:0646828/IV (b)/2> (in which R4 is an alkyl group) to form the corresponding ethylenically unsaturated compound <FORM:0646828/IV (b)/3> (in which Y is an ethylenic residue having one or two carbon atoms), hydrogenating to saturate the double bond and then saponifying the ester group.  The XO group may then be dealkylated into an hydroxy group.  The alcoholic compound used as starting material may be prepared by treating the corresponding b -keto ester with an organo-magnesium compound or, alternatively, by treating the corresponding 2-methoxy-6-propionyl naphthalene with ethyl bromoisobutyrate and zinc under the conditions of the Reformatsky reaction.  In an example, 2-bromo-6-methoxynaphthalene is heated with cuprous cyanide to produce 2-cyano-6-methoxynaphthalene which is then converted to a beta-keto ester by reaction with ethyl bromoisobutyrate and zinc in the presence of anhydrous benzene.  The beta-keto ester is treated with magnesium ethyl bromide to produce an ester alcohol which is then dehydrated with potassium disulphate to give ethyl [3 - (61 - methoxy - 21 - naphthyl)] - 2,2 - dimethyl-3-pentenoate which, by hydrogenation in the presence of platinum, is converted to ethyl - [3 - (61 - methoxy - 21 - naphthyl)] - 2,2 - dimethyl-pentanoate.  The latter compound is saponified and demethoxylated to produce [3 - (61 - hydroxy - 21 - naphthyl)] - 2,2 - dimethyl - pentanoic acid.  In a second example, 2-methoxy-6-propionylnaphthalene is reacted with ethyl bromo-isobutyrate under the conditions of the Reformatsky reaction and the ester obtained treated as in the first example.  In a third example, the ethylenic ester of the first example is first saponified, and then hydrogenated and demethoxylated.
Patent GB-1175057-A (GB)
Title: Improvements in or relating to Air Heaters
Inventor: GREEN CHARLES JOHN GEORGE
IPC: F24H3/06
Filed: 1966-02-10
Abstract: 1,175,057. Air heating stoves. COLT HEATING & VENTILATION Ltd. 8 Feb., 1967 [10 Feb., 1966], No. 5831/66. Heading F4S. In a space heater comprising a heat exchanger 16, 16a together with a combustion unit including a burner (not shown), air from an inlet 18 is drawn into a duct 19 by an impeller fan 20 to exit through an opening 21 in the duct and then to pass over the heat exchanger 16 discharging through openings 17 into the space to be heated. Damper means comprising a pair of flaps 27 actuated by a solenoid operated detent unit 23 (see Fig. 2) control the flow of air from the duct 19. Air from a fan 14 is independently supplied to the combustion unit through a pipe 13. The fans 14, 20 together with a fuel pump 12 are driven by a common motor 30. In operation when the motor 30 is energized, the fan 20 is prevented from delivering air to the heat exchanger 16 by the flaps 22 which are closed until the exchanger reaches a preselected temperature indicated by a thermostatic switch 26 positioned adjacent the exchanger in the path of the air to be heated. On attaining such a temperature the switch 26 closes and energizes the solenoid (52) of the detent unit 23 so releasing the flaps 22 and allowing air from inlet 18 to pass over the exchanger. A thermostatic switch device (66 not shown) positioned in the space to be heated, operates to switch off the fuel supply to the burner when the space reaches a preselected temp. The fans 14, 20 continue to run, so cooling down the heat exchanger below a predetermined temperature, opening the switch 26, which in turn actuates de-energization of the motor and closure of the flaps 22.
Patent GB-709778-A (GB)
Title: Improvements relating to photographic film processing apparatus
IPC: G03D13/10
Filed: 1951-09-18
Abstract: 709,778. Photographic film processing apparatus. MACKAY, E. C. (Sharpe, K.). Aug. 12, 1952 [Sept. 18, 1951], No. 5848/52. Divided out of 709,751. Class 98(2) A film supporting hanger of the kind comprising upper, lower and side frame members forming an open rectangular frame, the upper frame member of which has end extensions projecting beyond the adjacent side frame members to provide supports by which the frame can be vertically suspended in a processing tank, is characterized by the provision of work order clips upstanding from the upper frame members to detachably retain cards, sheets or forms bearing data relating to films hung over or from the lower frame member. Such hangers may be used in conjunction with the film processing apparatus of Specification 709,751. As shown, Fig. 3, the upper frame member 36 has extensions 37 and work order clip 61 holding order form 85 over film 56 which is attached to the lower frame member 55 by a film clip 50. Side frame member 66 may be openable at 67.
Patent GB-643799-A (GB)
Title: Improvements in or relating to clutch mechanisms
IPC: F16D43/20
Filed: 1948-02-26
Abstract: 643,799. Overload slip clutches. KODAK, Ltd. Feb. 26, 1948, No. 5863. Convention date, Feb. 27, 1947. [Class 80(ii)] Relates to clutches of the kind in which power is transmitted, from a driving shaft to a driven member rotatably mounted thereon, by a coil spring encircling and normally frictionally driven by the shaft, and in which a tensioned torque-limiting spring is provided between the coil spring and driven member to cause clutch disengagement during overload. As shown, in a form in which bi-directional overload slip drive is effected by a single coil clutch member 46, Fig. 1, encircling a driving shaft 16, the opposite ends of the coil 46 are fast with sleeves 20, 22 having axial drive lugs 40, 42, Fig. 4, locating with circumferential play in a slot 41 in a driven member 18 rotatably mounted on the shaft 16. The coil 46 is bridged by an adjustably tensioned spiral spring 27 which acts to bias the lugs 40, 42 into driving engagement with the ends of the slot 41 as shown, when the coil 46 is also drivingly contracted about the shaft 16. The arrangement is such that drive from the coil 46 always passes through the spring 27 on to the appropriate lug 40 or 42, so that, regardless of the direction of rotation of the shaft 16, drive ensues until the torque loading on the member 18 is sufficient to overcome the spring 27 and drive back the operative lug 40 or 42, expanding the coil 46 out of contact with the shaft 16 and breaking the drive. The spring 27 acts between a rim 29 on the sleeve 20 and a drum 26 which is located relative to the sleeve 22 by a set screw 34 engaging one of a number of circumferentially spaced cut-outs 32 on the drum, and may be rotated relative to the sleeve to adjust the tension of the spring 27 by slackening off the screw 34 and rotating the drum by means of a tool engaging the cut-outs 32 through a slot (not shown) in the sleeve. In Fig. 5 (not shown), in a form which may allow slip at different overloads in the two directions of rotation, bi-directional drive is supplied by two oppositely acting clutches of the kind referred to mounted on a driving shaft on either side of a driven pulley, one end of each coil and its corresponding spiral torque-limiting spring being secured to a loose sleeve common to both clutches, and the other ends of the coil and torquelimiting springs in each clutch being secured to a sleeve individual to the clutch and having a circumferential lost-motion slot engaged by a drive pin on the pulley. Each of these latter sleeves has a further lost-motion connection with the loose sleeve, on which the pulley is freely journalled. The arrangement of the lost-motion connections is such that the respective coil springs are rendered operative only in single but opposite directions of rotation; and the spiral springs, which are supplied with tension adjustment means as before, may be set to release their clutches at the same or different overloads.
Patent GB-1510041-A (GB)
Title: Variable displacement pump
IPC: F04B1/30
Filed: 1976-02-14
Abstract: 1510041 Reciprocating pumps PLESSEY CO Ltd 26 Jan 1977 [14 Feb 1976] 05891/76 Heading F1A In a swash-plate pump, the swash-plate is pivotably supported by pins 42 carried by removable side plates 6, 8 of the pump housing 2, members 70 on the side plates supporting the pins so that swash-plate loads are transmitted to each side plate in a plane parallel to the plane of the side plates. Support members 38, 39 screwed to the swash-plate engage pins 42 and have flanges 44, 46 retaining a slipper-retaining plate 48. One support member 39 has lugs 60, 62 engaged by pistons 80, 84 for tilting the swash-plate. Details of assembling and installing the swash-plate are described.
Patent GB-827173-A (GB)
Title: Apparatus for the intermittent feeding and registration of continuous webs or strips
IPC: B65H20/04
Filed: 1955-02-28
Abstract: 827,173. Cutting-machines. WESTON, B., and H. & B. PRECISION ENGINEERS Ltd., [formerly H. & B. PRECISION ENGINEERING & TOOLS CO. (WATFORD) Ltd.]. Feb. 28, 1956 [Feb. 28, 1955], No. 5933/55. Class 31 (1). [Also in Groups XVI and XL (b)] A web fed between driving and idling rollers 6, 8 is intermittently clamped between foot 24 of crank 20 and lever 12, in order to permit severing, when a solenoid 26 is actuated photoelectrically (see Group XL (b)) the idling rollers being simultaneously pushed away from the driving rollers. Foot 24 may form part of, or carry, a guillotine blade. In the second embodiment a single driving roller as wide as the web is used, Figs. 3 and 4 (not shown). The photo-electric control is by printed or punched marks on the web.
Patent GB-686356-A (GB)
Title: Improvements in liquid fuel burners
IPC: F23C99/00
Filed: 1951-03-12
Abstract: 686,356. Liquid fuel burners. LUNDBERG, K B. K. A. March 12, 1951, No. 5950/51. Class 75(i) and 126 A liquid fuel burner laterally disposed in relation to its fuel tank 2 comprises a primary combustion chamber 5 having a controllable primary air inlet and in which combustion takes place at the free surface of the fuel, a secondary combustion chamber 25 arranged above the primary combustion chamber and having secondary air inlets 21, and a stack 29. The primary air inlet consists of a hit and miss valve bolted to the top of a lateral extension 8 of the primary combustion chamber and comprising three superposed plates 9, 12, 15, the fixed lower plate 9 'having a semi-circular opening, the rotatable middle plate 12 also having a semicircular opening and the rotatable upper plate 15 being semi-circular and perforated. A semi-tubular baffle 10 depends from the .fixed plate 9 into the extension 8, its convex surface facing the primary combustion chamber. The secondary combustion chamber 25 comprises an inverted bowl supported on a stand 24 on a ring 22 disposed around the open top of the primary combustion chamber. The secondary air inlets 21 are formed in the ring 22. The inverted bowl has a central aperture 26 covered by a flame guard 28 and surrounded by an annular bowl 37 in which at starting spirit is burned to cause a draught. The fuel in the primary combustion chamber is ignited by a piece of cotton waste on a hook on a bolt 19 securing the air control valve to the extension 8. The stack 29 surrounds the secondary combustion chamber and is provided at its upper end with a hinged damper and a flame guard and near its lower end with .tertiary air inlets.
Patent GB-396140-A (GB)
Title: Improvements relating to percussive hand tools
IPC: B25D11/10
Filed: 1932-02-27
Abstract: 396,140. Spring-actuated hammers. RAWLINGS, J. J. and RAWLPLUG CO., Ltd., Cromwell Road, South Kensington, London. Feb. 27, 1932, No. 5956. [Class 124.] In a hand hammering tool having a spring h which drives a striker p against the head of a tool holder v and is stressed by cams e and levers f, an intermittent rotation is given to the tool holder by the action of a cam 1 mounted on the same spindle as the cams e and comprising interrupted helical ribs 2 which engage a toothed wheel x surrounding the tool holder. The striker is provided with a tail rod q guided loosely in a lug r. The pivot of the levers f can be shifted by means of a screw 5 so that the tool acts by rotation only. A second screw m is provided to adjust the tension of the spring h. In a modified arrangement shown in Fig. 8 the screw 5 is dispensed with, and a single screw m<1> performs both functions. A driving handle d is mounted at one side, and may be replaced by other suitable driving means.
Patent GB-452267-A (GB)
Title: Improvements in and relating to stylographs
IPC: B43K8/18
Filed: 1936-02-28
Abstract: 452,267. Stylographs. DONNER, J., 13, Keleti Karoly utca, and JANCSO, F., 12, Aranka utca, both in Budapest. Feb. 28, 1936, No. 6007. [Class 146 (iii)] The outer end of the writing- point 7 of a stylographic pen is formed with a knob 9 which extends over the mouth of the ink-feeding passage in the nozzle In use, the point is pushed to one side of the passage so that ink is permitted to flow out radially. The nozzle is mounted in a rubber plug 2 inserted in the end of the barrel, and air passages 3 are cut in the plug. The outer surface of the plug is varnished to facilitate sliding in the end of the barrel.
Patent GB-551918-A (GB)
Title: Improvements in or relating to propellers with extended drives
IPC: B64C11/38
Filed: 1941-05-08
Abstract: 551,918. Torsional-vibration dampers. UNITED AIRCRAFT CORPORATION. May 8, 1941, No 6007. Convention date, May 8, 1940. [Class 108 (iii)] [Also in Groups XXXIII and XXIX An airscrew shaft is supported by a bearing carried at the outer end of a tubular member through which the driving shaft extends, the tubular member being secured at its inner end to a structural member which is independent of the engine. The driving shaft is torsionally flexible and the torsional oscillations are hydraulically damped. Hydraulic means for varying the pitch of the airscrew in accordance with the shaft speed, and for feathering the blades, also are provided. The tubular member 18 is secured to a bulkhead 12, Fig. 2, of a nacelle carried by an aircraft wing and its forward end is secured to a partition 61, Fig. 1. A tubular shaft 16 extends from the engine and is splined at its forward end to a second shaft 30 which in turn is splined at its rear and to a third shaft 32 extending to the propeller hub 34 where it is supported by a bearing 72 carried by an extension 68 fixed to the partition 61 on the opposite side to the member 18. The shaft 32 is splined to a ring 42 carrying a series of perforated vanes 46 which alternate with solid vanes 50 carried by an enclosing casing having a flange 54 splined to the shaft 16 so as to damp relative oscillations between the shafts 16 and 32. The casing is kept supplied with oil through passages 58 in the shaft 32 communicating with a chamber therein supplied through a check valve 122. Where a feathering propeller is used it may be of the kind described in Specifications 514,725 or 505,077, [both in Group XXXIII], swivelling blades being rotated by gears 78 on each blade meshing with a gear 80 adjusted by cam followers 84 on a sliding piston 86. This piston is moved in one direction or the other according to whether pressure fluid from a pump 104 is delivered to ports 116 or 118 leading to the inside or the outside of a tube 88 mounted as shown within the shaft 32. The pump 104 is driven by a hollow shaft 98 geared to the shaft 32 by spur wheels 100, 102. The shaft 98 also drives a speed governor 94 which moves a valve within the shaft to control the distribution of pressure fluid through pipes 110, 112 to the ports 116, 118. When it is desired to feather the blades, a second pump 106 delivering at a higher pressure is started up, and the fluid passing through a pipe 155 moves the valve in the shaft 98 to the left to distribute the pressure to the conduit 112, another valve moving to shut off the pressure from the pump 104 which then discharges to the reservoir formed by the casing 68. The Specification as open to inspection under Sect. 91, contains a reference to U.S.A. Specification 308,994/1939. This subject-matter does not appear in the Specification as accepted.
Patent GB-1410260-A (GB)
Title: Life jacket
IPC: B63C9/115
Filed: 1973-02-07
Abstract: 1410260 Life jackets B B U BONTHELIUS 7 Feb 1973 6061/73 Heading B7U A life jacket comprises a body piece 6 and a head piece 7 hinged together by material 13 which extends from the central region of the body piece to the outer region of the head piece. The hinge thus does not interfere with the freedom of the side edges of the body piece to curve round the wearer's body or with the freedom of the side edges of the head piece to curve outwards from the body. The opening in the head piece is normally closed by buoyant flaps 11, but these are folded back before use about hinges 12 to give additional support to the head of the wearer. A cord 14 connects the two sides of the jacket and is tensioned in use to raise the sides of the head piece. Tensioning may be carried out by engaging the cord with a hook 17 or by effectively shortening the cord, for example by passing a knot on the cord through a keyhole slot in one of the pieces 13 of lining material. The life jacket is made of closed cell foamed plastics covered by plastics sheet material. The jacket can be folded into a rectangular form, Fig. 2 (not shown), when the cord 14 serves as a carrying handle.
Patent GB-149376-A (GB)
Title: Improvements in and relating to x-ray apparatus
IPC: H05G1/61
Filed: 1919-03-11
Abstract: 149,376. Rodriguez, M. B. March 11, 1919. Stereoscopic apparatus.-The shutters of the stereoscopic R÷ntgen ray apparatus described in Specification 135,540 and a commutator switch controlling the electrode circuits of the apparatus are operated by separate motors synchronously controlled by a commutator, the operating motor of which drives a mercury interrupter in the primary circuit of the induction cnil supplying the apparatus. The shutters 22, 22<1>, Fig. 3, are operated by synchronous motors 19, 19<2>, Fig. 2, respectively, and a commutator switch 26, controlling the electrode circuits of the apparatus T, is operated by a similar motor 19<1>. The motors 19, 19' and 19<2> are controlled by a commutator A', the rotary brushes 2 and 3 of which are driven by a motor M which also drives the mercury interrupter A of an induction coil 24. The motor armature may consist of a polarized ring 20, Fig. 2, or a polarized or non-polarized bar 21.
Patent GB-1242082-A (GB)
Title: Lacrosse stick and head therefor
Inventor: TUCKER RICHARD B C
IPC: A63B59/02
Filed: 1968-08-05
Abstract: 1,242,082. Lacrosse stick head. Wm. T. BURNETT & CO. Inc. 5 Aug., 1968, No. 6128/71. Divided out of 1,242,081. Heading A6D. The description is substantially the same as in Specification 1,242,081 but the claims are directed to the construction of the head.
Patent GB-122969-A (GB)
Title: Improvements in and relating to Boxes and like Tubular Containers.
Inventor: CROLL JAMES TURNBULL
IPC: B65D3/10
Filed: 1918-04-11
Abstract: 122,969. Croll, J. T. April 11, 1918. Tubular boxes, etc.; lined and coated boxes, &c.-A tubular box or container comprises a cylindrical body a made by winding in layers a web of paper, millboard, &c., coated on both sides with varnish. End-disks c are inserted and are secured in place between collars b, d, all these parts being made of the same coated material as the body a. One of the end-disks may be secured by nails &c. passed through the collar d. In a modification, the collars d are omitted, the ends of the body being bent over to secure the disks c. The body may be corrugated or fluted inside; or a liner of this formation may be inserted in it.
Patent GB-1049501-A (GB)
Title: 5-carboxy-hydantoin chelates for use in the preparation of amino acids
IPC: C07D233/74
Filed: 1964-02-13
Abstract: Novel 5-carboxyhydantoin chelates of general formula <FORM:1049501/C2/1> wherein R1 and R2 are H or monovalent organic groups and M is Mg, Zn or Ca are prepared by (a) reaction of a metal alkyl carbonate of formula <FORM:1049501/C2/2> wherein M is Mg, Zn or Ca and R3 is an alkyl group, with a hydantoin of formula <FORM:1049501/C2/3> wherein R2 is as defined above and R1 is an organic group, (b) by reaction of a metal alkyl carbonate of the above formula with a hydantoin of the last formula above where R1 is replaced by an atom of an alkali metal, and R2 is an organic group or H, (c) by reaction of 2 moles of a metal alkyl carbonate of the above formula with hydantoin.  In (a), (b) and (c) the reversable reaction is promoted by distilling off the alcohol, R3OH, formula.  Amino acids and/or their acid addition salts are prepared from the above novel chelates via 5-substituted hydantoins by either substituting the chelate in the 5, or simultaneously in the 3 and 5, positions of the hydantoin ring and hydrolysing the 5-substituted compound, for example by heating under pressure with Ba(OH)2, followed by optional acidification to give the salt of the amino acid.  The Mg, Zn and Ca alkyl carbonates used above are prepared by reaction of CO2 with a solution of a metal alkoxide.  The 3-substituted hydantoins used above are prepared either by reaction of hydantoin with an organic halide or by reaction of the appropriate isocyanate and glycine.  The 1,3-substituted hydantoins used above are prepared for example by reacting the appropriate isocyanide and a -amino acid.  2 - (N2 - Phenylureido) - N,N1 - dibenzylmalonamide is prepared by refluxing benzylamine, NH4Cl and 5-carbethoxy-3-phenylhydantoin.
Patent GB-1077877-A (GB)
Title: Improvements in crystal oscillators
IPC: H03B5/36
Filed: 1965-02-12
Abstract: 1,077,877. Transistor oscillator circuits. SOCIETE D'ELECTRONIQUE ET DE PIEZO-ELECTRICITE. Feb. 12, 1965 [Feb. 14, 1964], No. 6282/65. Heading H3T. [Also in Division H1] Fig. 1 shows a transistorized crystal oscillator circuit, the D.C. input being applied to terminals A, B, and the H.F. output appearing at terminals A, S. The capacitors and resistors of the circuit may be constituted by semiconductor components.
Patent GB-539615-A (GB)
Title: Improvements relating to the superheating and reheating of steam in steam power plants
IPC: F22G5/04
Filed: 1941-05-16
Abstract: 539,615. Steam reheaters and superheaters. JOHNSON, J. May 16, 1941, No. 6358. Addition to 539,614. [Class 123 (iii)] A super-heater 1 and a re-heater 2 are arranged behind an apertured partition 3 at the side of a single flow boiler, and dampers 6, 8 control the flow of gases through and around the bottom of the partition. A damper 10 controls the flow from the furnace after passing over the boiler tubes directly to the uptake. As in the parent Specification, the dampers are so operated that the re-heater is byepassed and then flows over the super-heater controlled by the dampers 6, 10, or both the re-heater and super-heater are controlled by the dampers 6, 8, the damper 10 being closed. The gases from the heaters pass over an economizer 9. Instead of arranging the heaters side by side they may be arranged one over the other and below damper controlled apertures in the partition.