baber/WOPTO huggingface dataset:
Patent GB-713708-A (GB)
Title: Electric lighting fittings
Inventor: FELTON FREDERICK DUDLEY
IPC: F21S8/06
Filed: 1952-06-04
Abstract: 713,708. Supporting lamp reflectors. REVO ELECTRIC CO., Ltd. Aug. 31, 1953 [June 4, 1952], No. 14052/52. Class 75 (2) An electric lighting fitting comprises a reflector 8 having at its upper end an inturned flange 6 adapted to be connected to the crown 3 of the fitting, the reflector when released being prevented from complete removal by the flange engaging a shoulder 12 on a lampholder 11 connected to the crown. The reflector is connected to the crown by headed pins 4 on the crown engaging keyhole slots in the flange 6. The lampholder is connected to a yoke 9 supported by the pins 4.
Patent GB-835367-A (GB)
Title: Improvements in or relating to forced-flow steam generators
IPC: F16K1/52
Filed: 1958-05-02
Abstract: 835,367. Forced - flow steam boilers. SIEMENSSCHUCKERTWERKE A.G. May 2, 1958 [May 29, 1957], No. 14091/58. Addition to 779,335. Class 123(2) The forced-flow steam generator described in the parent Specification is modified in that the throttling devices incorporate means for preventing the flow from being shut off completely when the generator is operating at low loads. The throttling element 4 is guided by fins 5, 6 for vertical movement within a widened portion 3 of the water tube 2. At its lower end the element has two conically shaped portions 7, 8 joined by a cylindrical portion 9. In its lowest position, as shown, the fins 5 bear on an abutment 10 in the tube 3 and an opening 11 is provided of a size corresponding to a one third full output water flow. As the load increases the element 4 is lifted thus increasing the size of the opening 11 and reducing the flow resistance of the tube 2.
Patent GB-1429405-A (GB)
Title: Process for the manufacture of polyhalogenated nicotinic acids
IPC: C07B61/00
Filed: 1974-03-29
Abstract: 1429405 Polychloronicotinic acids CIBAGEIGY AG 29 March 1974 [4 April 1973] 14138/74 Heading C2C Polychloronicotinic acids of general formula in which X is H or Cl, are prepared by treating a compound of general formula with highly concentrated nitric acid, containing at least 90% by weight of HNO 3 , in the presence of concentrated H 2 SO 4  and metal salt catalysts at 100-160‹ C. It is preferred to use 2-5 parts by weight of fuming nitric acid per part by weight of starting compound. The catalyst is preferably a mixture of Cu and Hg salts, or compounds which form salts under the reaction conditions, added in an amount of 0À02-0À1 part by weight based on weight of starting compound. A temperature of 120-150‹ C. is advantageous. 2,6 - Dichloro - 3 - chloromethyl - pyridine is prepared by introducing 3-chloro-3-chloromethyl glutarimide and POCl 3  into an autoclave and heating at 160‹ C. over 3 hours. The resulting mixture is freed of POCl 3  and poured into water to give the crude product. 2,5,6 - Trichloro - 3 - chloromethyl - pyridine is obtained by heating 3,5,6-trichloro-3-chloromethyl - 5,6 - dehydro - piperidine - 2 - one and POCl 3  at 180‹ C. for 3 hours in an autoclave. 3,5,6 - Trichloro - 3 - chloromethyl - 5,6 - dehydropiperidin-2-one is obtained by treating 3- chloro-3-chloromethylglutarimide with POCl 3 .
Patent GB-1139693-A (GB)
Title: Improvements in or relating to refuse vehicles
IPC: B60P1/64
Filed: 1966-03-30
Abstract: 1,139,693. Refuse vehicles. MASCHINENFABRIK AUGSBURG NRNBERG A.G. 30 March, 1966 [30 March, 1965], No. 14152/66. Heading B8E. A refuse vehicle comprises a chassis 1<SP>1</SP> on which is mounted a removable refuse bin 7, and a visor 2 pivotally mounted at 3 on the chassis, the visor being upwardly rotatable to permit the bin 7 to be removed from the vehicle. A capstan 6 and a rope 5 is provided for raising the visor, the capstan 6 being also used to move the bin by means of a rope 6<SP>1</SP> and a hook 6<SP>11</SP> from the chassis 1<SP>1</SP> to a railway wagon 9. An intermediate plate 11 is provided for bridging the space between vehicle and wagon.
Patent GB-573511-A (GB)
Title: Improvements in or relating to endless belt or band conveyors
IPC: B65G21/20
Filed: 1943-08-31
Abstract: 573,511. Endless-belt conveyers. SUTCLIFFE, Ltd., R., and SHEPPARD, J. Aug. 31, 1943, No. 14179. [Class 78 (i)] Spillage from the troughed upper run of the conveyer is prevented by inwardly inclined guards 1, Fig. 2, the width between the upper edges of which is less than the width of the belt 6. The guards 1 are supported by brackets 3 in side members 2 which are carried by standards 9. The covers 10 for the bottom belt and the base plates 4 for the top rollers also are mounted in the standards 9. In a modification the covers 10 are made in two parts which overlap at their edges at the centre of the conveyer.
Patent GB-711666-A (GB)
Title: Rotary fans
Inventor: ODD RICHARD SIDNEY
IPC: F04D29/34
Filed: 1952-06-05
Abstract: 711,666. Screw fans. WILMOT-BREEDEN, Ltd. April 14, 1953 [June 5, 1952], No. 14187/52. Class 110(1) An axial-flow fan which may be used in a vehicle-engine cooling system comprises hollow blades d. Fig. 2, attached to the periphery of a hollow sheet metal boss a. each blade being formed by folding the metal sheet shown in Fig. 4. After folding, the abutting edges of the sheet are united by welding or brazing. Tongs e on the blades are inserted through slots in the periphery of the boss a, bent over. and welded or brazed to the boss. The boss is secured by bolts b to a driving pulley c.
Patent GB-906884-A (GB)
Title: The use of a steel for the production of smooth-surfaced parts which are to be chromised
IPC: F16C31/04
Filed: 1961-04-19
Abstract: A steel which can be chromized by diffusion from a chromium and/or ferrochrome packing without the packing sintering to the surface during chromizing contains:  .C.max 0.1% .Si.0.5-1.5% .Cu.0.3-1.0% .Ti.max 0.5%  The remainder being iron with usual amounts of phosphorus, sulphur and manganese impurities from smelting.  The titanium may be replaced partially or wholly by tantalum and/or niobium.  In addition, manganese (3-5%) may be added when copper may be absent or up to 1% with carbon up to 0.2%.  A thermal treatment may be carried out after the chromizing to improve strength and toughness, e.g. heat article to 950-1100 DEG  C., quench in water and then anneal for half an hour at 500 DEG  C.
Patent GB-450342-A (GB)
Title: Improvements in and relating to direction indicators
IPC: B62J6/00
Filed: 1935-05-15
Abstract: 450,342. Road traffic signals on vehicles. KOSTER, H. A., 27, Bergstrasse, Hagen, Westphalia, Germany. May 15, 1935, No. 14201. [Class 118 (ii)] A semaphore arm is arranged to fold into its casing, the arm being directly actuated by a handle fitted to the arm spindle. The arm comprises a lever 23 of U -cross-section and a forearm 24, pivoted together at 25. When the arm is in its casing (as shown dotted), the forearm 24 folds into the lever portion, the arm being held in the casing by the spring 32. When the operating handle 28 is turned the arm moves into the operated position, the parts being unfolded by the linkage 29, 30. A lamp, as indicated in Fig. 4, may be fitted in the forearm and be automatically switched on as the arm is operated, or the arm may carry phosphorescent stones. The arm maybe fittedwitha bracket for attachment to the handle-bar of a cycle.
Patent GB-1504594-A (GB)
Title: X-ray tube
IPC: H01J35/06
Filed: 1975-04-08
Abstract: 1504594 X-ray tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 April 1975 [11 April 1974] 14354/75 Heading H1D An X-ray tube has a cathode 4 disposed in a recessed ceramic member. The ceramic may be Al 2 O 3  ceramic containing >90% (97À6%) Al 2 O 3 , with a density of 3À76 g/cm<SP>3</SP>, breakdown strength of 43kv/mm and dielectric constant of 9 to 10. The member may be metallized so that the E field characteristics correspond to those of an all metal member. If not metallized, thermal emission may be such that separate cathode cooling is not required. Metallization 8 is at cathode potential and influences electron paths and the focal spot. Focusing may also be achieved without metallization. High field strengths at metallization edges may be mitigated by the stepped recess of Fig. 2b. Fig. 2c further shows cathode sleeve 6, and adjacent metallization 8d which may be additional to metallization of the recess as shown in Fig. 2b, shields sharp edges of sleeve 6. Influence of the magnetic stator field on the electron paths in rotary anode tubes may be avoided by use of a soft iron cap with a mesh over the ceramic member, which may be cylindrical and with a flange for definite engagement.
Patent GB-737946-A (GB)
Title: Self-closing valve structure
IPC: F16K41/10
Filed: 1953-05-21
Abstract: 737,946. Manually-actuated valves. ROTH RUBBER CO. May 21, 1953 [May 23, 1952], No. 14359/53. Class 135. A self-closing valve has a manual pivotal actuator arm 19, 22 extending through a side wall 10 of a conduit or chamber into operative engagement with the valve 17 and a flexible side wall portion 26 surrounding and engaging a portion of the arm to prevent leakage of fluid. The lever 19, spring-loaded at 28 to close the valve, is pivoted at 20 to bosses 21 on a wall of a hose and has the arm 22 entering a flexible closed pouch 26 joined to the wall at 27 and entering an off-set bore 23 in the preferably rubber ball valve, the off-set bore preventing rotation of the valve; The valve may be held in various positions by a pivoted yoke 32 engaging notches 33 in the lever. The pouch may be carried by a removable plug or the lever pass sealingly through the flexible side wall without a pivot pin.
Patent GB-911487-A (GB)
Title: A method of producing secondary recrystallisation
IPC: C21D1/78
Filed: 1960-04-25
Abstract: A method of producing secondary recrystallisation in a first metal or alloy which does not or does only to a small extent, recrystallize in the secondary state comprises bringing the first metal or alloy into contact with a second metal or alloy which is in the state of secondary recrystallization or in capable of so recrystallizing, and heating the metals together at a temperature above the recrystallization temperature and at which the metals have become at least in part welded, the two metals or alloys having the same crystal structure at the temperature.  The metals are brought into contact with one another and hot pressed, hot rolled, edge welded or cold rolled before being heated.  Two sheets of different iron-silicon alloys may be cold rolled together and heated to 1180 DEG  C. in flowing dry hydrogen for 20 hours to give the same crystal orientation.
Patent GB-553986-A (GB)
Title: Improvements in hydraulic engines
IPC: F15B15/08
Filed: 1941-11-10
Abstract: 553,986. Liquid-pressure engines; conveyers. SMELY, V. Nov. 10, 1941, No. 14474. Addition to 530,720, [Group XXX]. [Class 69 (ii)] [Also in Group XXX] A hydraulic engine of the kind described in the parent Specification for operating jigging conveyers in mines or quarries in which a stepped piston b works in a cylinder a and is operated by liquid from a pressure vessel c which is connected to the cylinder a by means of a valve f operated by a pilot valve g under control of a striking-gear h in accordance with the movements of the conveyer is modified by the provision of an independent pressure vessel i for supplying liquid under pressure to act upon the piston annulus to effect the return stroke of the piston 111. During this return stroke the exhaust is connected to a vessel d from which it is drawn by a pump e and delivered to the pressure vessel c. The pump e may be a variable delivery pump, or a fixed delivery pump with an adjustable suction valve, so as to enable the stroke of the conveyer to be shortened on an incline. The relative amounts of liquid and gas and the pressure of gas in the vessel i is variable, and the relative quantities of liquid and gas in the vessel c is also variable. The passage of liquid from the pilot valve g is controllable by screws.
Patent GB-734721-A (GB)
Title: Improvements in or relating to testing arrangements in telecommunication systems and apparatus therefor
IPC: H04B1/60
Filed: 1953-05-22
Abstract: 734,721. Testing radio link apparatus. GENERAL ELECTRIC CO., Ltd., and FAIRBAIRN, E. P. May 14, 1954 [May 22, 1953], No. 14476/53. Class 40(5). Test apparatus is incorporated in a radio relay station which upon receipt of a first tone modulation by the " go " receiver disables the "return" 'transmitter,- which is rendered operative again upon receipt of a second tone modulation to retransmit the second tone in the " return direction " via the " go " transmitter, a frequency changer and the " return receiver. A simpler form of the apparatus may be used to enable the far terminal station to be similarly tested. As shown, receipt of the first tone by the " go " direction receiver 7 energizes a relay A through the detector 14. Contact A3 removes the H.T. supply from " return " transmitter 10, A2 closes to prepare a circuit for relay C and A1 closes to connect the second tone detector 15 to the receiver 7. When the second tone is received relay B is energized, and closure of contact B2 completes the circuit of relay C, which locks up over contact C1 and restores H.T. supply to transmitter 10 over contact C1. Transmitter 10 then sends the second tone back - in the " return " direction having received it from " return " receiver 9 which is energized over a loop formed of " go " transmitter 8, and receiving and re-radiating frequency-changer 17 ... 22, the local oscillator 17 of which is energized by contact B1 of relay B. Other relay stations have similar apparatus but are each responsive to an individual value of the second tone frequency, so that a test loop may be formed through one, two, three, &c. relay stations by progressively changing the second tone frequency because although the B relays release in succession the A and C relays remain operated as long as the first tone is maintained. The circuit 17 ... 21 is unnecessary at the far terminal station where the contact B1 is utilized to complete a speech path between the single receiver and transmitter. Information, such as the occurrence of an automatic changeover to stand-by equipment at a repeater station, may be signalled by coding the returned second tone.
Patent GB-457596-A (GB)
Title: Improvements in or relating to the preparation of viscose
IPC: D01F2/08
Filed: 1936-05-22
Abstract: In order to facilitate the filtration of viscose for use in the manufacture of artificial silk, there is added to it prior to filtration an aqueous solution of sodium hexametaphosphate.  The quantity added may be 0,1 per cent of hexametaphosphate based on the weight of the viscose.  The addition results in the formation of a complex calcium sodium phosphoric acid compound which remains in solution during the filtration of the viscose, and thus removes difficulties of filtration by preventing the formation of insoluble calcium silicate impurities.  Specification 449,428 is referred to.
Patent GB-273267-A (GB)
Title: Improved treatment of the black liquor obtained in the manufacture of wood fibre by the soda process
IPC: D21C11/00
Filed: 1927-05-31
Abstract: 273,267. Hagglund, E. June 23, 1926, [Convention date]. Addition to 258,035. Acetates; methyl alcohol.-In treating black liquor from the soda-pulp process as described in the parent Specification, by subjecting the liquor to heat and pressure treatment to separate organic substances as tarry or carbonaceous material, and afterwards separating from the treated liquor sodium acetate and soda which is causticized for use again, the liquor from the heat and pressure treatment is evaporated to dryness, and is subjected to fractional lixiviation to separate the acetate from the less soluble soda. The soda is afterwards causticized to obtain a lye for further use. The dry residue may, before Lixiviation, he heated to about 300‹ C. to decompose organic substances other than acetate. Volatile products, such as methyl alcohol, may be recovered during the drying process.
Patent GB-1385359-A (GB)
Title: Nin-isomerizable olefinic polyoxyalkylene polymers and siloxane- polyoxyalkylene copolymer derivatives thereof
IPC: C08L71/02
Filed: 1972-03-29
Abstract: 1385359 Alkenyl polyethers; siloxane polyether block copolymers; polyurethane foams UNION CARBIDE CORP 29 March 1972 [30 March 1971] 14699/72 Headings C3R and C3T The invention comprises (1) olefinic polyoxyalkylene polymers of the formula wherein R denotes H or a monovalent hydrocarbon radical free of aliphatic carbon to carbon multiple bonds, X denotes a cyclic divalent group free of aliphatic carbon to carbon multiple bonds or the group R<SP>1</SP> and R<SP>11</SP> each denote monovalent hydrocarbon radicals free of aliphatic carbon to carbon multiple bonds, R‹ denotes a divalent hydrocarbon group free of aliphatic carbon to carbon multiple bonds, a is 0 or 1, R<SP>00</SP> denotes an alkylene radical having at least two carbon atoms, b is at least 5, and R<SP>000</SP> denotes -R, -OCNHR, -OCR<SP>1</SP> or -OCOR<SP>1</SP>; (2) the preparation of compounds (1) by reacting an olefinic alcohol H 2 C = CR-X-OH with an appropriate alkylene oxide and, if desired, subsequently converting terminal OH groups into other OR<SP>000</SP> values by conventional techniques; (3) siloxane-polyoxyalkylene block copolymers consisting essentially of (a) at least one unit of the formula  wherein Y denotes a monovalent hydrocarbon radical free of aliphatic carbon to carbon multiple bonds, m is 0 to 2 inclusive, n is 1 to 3 inclusive and (m+n) is 1 to 3 inclusive, and (b) units of the formula wherein p is 1 to 3 inclusive and Z denotes a monovalent hydrocarbon group free of aliphatic carbon to carbon multiple bonds; (4) the preparation of compounds (3) by reacting a compound (1) with a hydrosilane consisting essentially of (a) at least one unit of the formula and (b) units of the formula in the presence of a hydrosilation catalyst, preferably chloroplatinic acid; and (5) the preparation of polyurethane foams by reacting together a mixture of (a) a polyester or polyether containing at least two hydroxyl groups, (b) an organic polyisocyanate, (c) a polyurethane formation catalyst, (d) a blowing agent and (e) a siloxane-polyoxyalkylene block copolymer foam stabilizer as defined under (3). Examples describe the preparation of and a polyurethane foam prepared from a polyol of OH number 46 based on glycerol, propylene oxide and ethylene oxide, toluene diisocyanate, water, dimethylethanolamine, CCl 3 F, stannous octoate and a mixture of the first of the specific siloxane block copolymers identified above with a mixture of C 4 H 9 O(C 2 H 4 O) 11 (C 3 H 6 O) 8À4 H and C 9 H 19 C 6 H 4 O(C 2 H 4 O) 10À5 H.
Patent GB-963733-A (GB)
Title: Electrical systems for the automatic control of speed
IPC: H02P29/00
Filed: 1959-04-30
Abstract: 963,733. Automatic speed control. G. J. TRAPP. Aug. 2, 1960 [April 30, 1959], No. 14715/59. Heading G3R. A D.C. motor is coupled to a generator providing control frequencies dependent upon the speed of the motor which is also coupled to a D.C. brake machine. The amplified control frequency and a reference frequency are both applied to a control unit for the brake in order to keep the speed of the motor constant. As shown, the brake control means comprise two pairs of valves V1, V2, and V4, V5, operating in phase opposition. Valves V1, V4, have the control frequency applied to their grids, whilst the grids of valves V2, V5, are supplied with the reference frequency. Each pair of valves has a common cathode load resistor R1, R4, associated with a pair of output valves V3, V6, connected to operate in phase opposition, each resistor R1, R4, being connected to the grid of one of the valves V3, V6. The anodes of the latter are connected to the armature 24 of the brake machine which is either a motor or a generator. In a modification, one of the output valves is dispensed with and the load resistors are connected to the grid of the output valve through diodes so that current flows towards the grid, Fig. 7 (not shown). A capacitor, or a filter circuit comprising a capacitor and inductor, may be shunted across the armature of the brake machine. A vibration-damping coupling may be inserted between the shafts of the motor and brake machine, Figs. 4, 5 (not shown). The generator for the control frequency may comprise a glass disc with rings in the form of line-waves photographically produced upon it, the disc being rotated with the motor shaft. A beam of light is projected through a narrow slot and the disc, and a photo-electric element receives a part of this light. Two light beams and two photo-electric elements may operate in conjunction with a single frequencyring, the elements being spaced and their outputs combined to reduce errors due to eccentricity. A plurality of phase-displaced control frequencies and a like number of reference frequencies may be used to control a single brake machine, the multiple control frequencies being produced by separate rings. In another form, the multiple control frequencies produced from a single ring associated with a number of angularly-spaced photo-electric elements. This extends the range of control.
Patent GB-1069479-A (GB)
Title: Heat insulating mats or felts having improved thermal insulating properties
IPC: C04B41/51
Filed: 1965-04-07
Abstract: Felts of natural or synthetic fibres are coated with gold, silver, platinum or aluminium by vapour or chemical deposition or by cathode sputtering.
Patent GB-1183384-A (GB)
Title: Improvements in Automatic Gain Control Circuit Arrangements
Inventor: LAMMING JACK STEWART
IPC: H01L29/10
Filed: 1967-03-31
Abstract: 1,183,384. Transistor gain control circuits. ASSOCIATED SEMI-CONDUCTOR MFRS. Ltd. 31 March, 1967, No. 14774/67. Heading H3T. [Also in Division H1] An automatic gain control circuit includes a semi-conductor device comprising a transistor having emitter, base and collector regions and a low resistivity region which forms a PN junction with the collector region. A current path may be provided in the device between the base region and the low resistivity region (see Division H1). If the collector/base and collector/ low resistivity region junctions are both reversed-biased, the collector body resistance may be varied, thus providing gain control, by variation of the degree of biasing since this will vary the width of the two depletion regions within the collector. In the a.g.c. circuit shown A is a tuned circuit, B is a further amplification stage, C is a detector stage and D is an a.g.c. signal amplifier. The amplified a.g.c. signal is applied simultaneously to the base region and to the low resistivity region contiguous with the collector. In an alternative circuit, Fig. 12 (not shown), the a.g.c. signal is applied only to a fourth terminal attached to the low resistivity region.
Patent GB-420011-A (GB)
Title: Improvements in or relating to lubricators
IPC: F16N11/04
Filed: 1933-05-22
Abstract: 420,011. Force - feed lubricating. MACINDOE, J. F., 3603, Queen Lane, East Falls, Philadelphia, U.S.A. May 22, 1933, No. 14790. [Class 12 (iii)] A lubricator comprises a container 1 having an inlet 3 and means for expelling lubricant through an outlet 4, the outlet being controlled by a moving plug 17 the cross-sectional area of which can be varied to vary the mean flow through the outlet. As shown, the container 1 has a spring-pressed conical piston 8 carrying a hollow stem 9 through which passes a rod 15. The latter is screwed at 18 to the stem 9 and carries a spiral spring 17 at its lower end. The spring can be compressed solid by rotating the rod 15. If the rate of flow through the outlet 4 is insufficient the rod 15 is turned to open the coils of the spring 17. The rod 15 may have at its upper end a head 19 or a slot to facilitate turning.