baber/WOPTO huggingface dataset:
Patent GB-404746-A (GB)
Title: Anti-theft device for automobiles
IPC: B60R25/022
Filed: 1932-08-06
Abstract: 404,746. Preventing unauthorized use of motor vehicles. FOX, S. J. R., 603, King's Road, Fulham, London. Aug. 6, 1932, No. 22090. [Class 79 (iii).] Coupling means between a steering handwheel and its shaft, adapted to be locked with the handwheel either fast or loose on the shaft, at the same time controlling the ignition circuit so that the engine cannot be started when the handwheel is loose, comprises a central boss C on the handwheel mounted on a sleeve A<1> secured to the shaft, as by a grub screw A', the boss carrying one or more bolts F<2>, F3 slidable radially into or out of engagement with apertures A8, A9 in the sleeve under the control of a rotary cap or enclosing member E with an internal cam surface and a key operated barrel lock D<1> operating a bolt D for locking the cap to the boss C in either of its two operative positions. The bolts F<2>, F<3>, which are urged apart by a spring H<1>, Fig. 2, accommodated in a slot H in the boss C, bear at their outer ends against the walls of an elongated cam recess E<1>, E<2> in the cap E so that when the cap is rotated through 90� from the position shown the bolts are withdrawn from engagement with the sleeve A<1> leaving the handwheel loose thereon, the cap being adapted to be locked in this position by engagement of the bolt D with a recess C<1> in the boss. In the position shown, in which the handwheel is secured to the shaft A, the cap is locked by engagement of the bolt D with a recess C<2> in the boss. A spring pressed ball C<3> engaging a recess in the sleeve indicates alignment of the bolts F2, F<3> with the apertures A<8>, A<9>. Removal of the cap E is normally prevented by a set screw A<6> protruding into a recessed part of the boss C beneath an end plate A<4> secured to the sleeve A<1>, a pair of spaced pins A<7> on either side of the screw regulating the rotary play of the cap. By withdrawing the screw A<6>, the cap may be removed when the boss is secured to the shaft. The ignition control comprises a spring contact strip J which is lifted off a terminal J<2> by a plunger J<3> raised by the inclined end of the bolt F<2> as this is moved into engagement with the sleeve A<1>. A modified construction is described in which the spring H<1> is eliminated, the bolts F<2>, F<3> being formed with T-shaped heads engaging undercut grooves formed in the wall of the cam recess E<1>, E<2>.
Patent GB-346245-A (GB)
Title: Improvements in blades for automatic lubricating boxes
IPC: F16N7/16
Filed: 1930-07-22
Abstract: 346,245. Lubricating axle-bearings. BRITISH ISOTHERMOS CO., Ltd., Scotswood Works, Newcastle - on- Tyne.- (Assignees of Soc. Internationale Isothermos Soc. Anon.; 1, Rue du Rhone, Geneva, Switzerland.) July 22, 1930, No. 22107. Convention date, July 27, 1929. [Class 12 (iii).] An oil-lifting blade 10 for an axle-box has differently-shaped cranked ends 12, 121 which dip into the oil in the box, and each end is formed with an edge from which oil drips on to the bearing at low speeds, the drip edge 14 of one end 12 being at rightangles to the length of the blade while the drip edge 14<1> of the other end 121 is parallel to the length of the blade. Thus when the speed is such that centrifugal force balances the effect of gravity on the oil on the one end 12 and so prevents drip from that end, oil can still drip from the other end 12<1>. At higher speeds, oil is projected on to the walls of the box, whence it flows to the bearing. The end 12 is of segmental form, the arc being struck from the axis of rotation. The end 12 may be formed with a notch 23 or with one or more pointed projections 25 to facilitate the centrifugal projection of the oil. Pointed projections may also be formed on the edge 14. Alternatively, the end 12 may be of triangular shape. The blade is formed of thin sheet metal and may have strengthening ribs.
Patent GB-614623-A (GB)
Title: Improvements in and relating to rotative aerofoils with propulsive ducts
IPC: B64C27/18
Filed: 1946-07-25
Abstract: 614,623. Helicopters. CIERVA AUTOGIRO CO., Ltd., SHAPIRO, J. S., and PULLIN, C. G. July 25, 1946, No. 22156. [Class 4] [Also in Group XXVI] A blade of a helicopter or like rotor is provided with a propulsive duct of the continuous flow or intermittent type at its outer extremity, the blade being generally straight, except at the portion adjacent the duct where it has a pronounced sweep-back or sweep-forward. Fig. 1 shows a blade 5 with a swept-forward portion carrying the duct 6 in an inclined position, as in Specification 614,624. In order to minimise the twisting moment on the blade, the latter may be given a curved form comprising a swept-back portion joined to the straight inner portion of the blade, continued by a swept-forward portion carrying the duct, or the reverse arrangement may be adopted.
Patent GB-1002132-A (GB)
Title: Improvements relating to polyether suitable for use in the production of polyurethane foams
IPC: C07H15/08
Filed: 1964-05-28
Abstract: A rigid polyurethane foam is obtained by mixing an organic polyisocyanate and a blowing agent with a polyether composition of high functionality (normally greater than 7) which has been obtained by reacting sucrose and sorbitol with 1,2-propylene oxide and which has a hydroxyl number of 350 to 600, the molar ratio of sucrose to sorbitol being 0.5 : 1 to 2 : 1 (see Division C2).  One shot or prepolymer techniques may be used.  Specified isocyanates include phenylene, tolylene, naphthalene and hexamethylene diisocyanates, methylene-bis-(4-cyclohexyl-and 4 - phenyl - isocyanates), triphenylmethane and benzene triisocyanates. Fluorocarbons are specified blowing agents. Tertiary amines and/or tin salts may be used as catalysts.  Emulsifying agents, particularly siloxane-oxyalkylene block copolymers may be present as may flame retardants including antimony trioxide, phosphate esters, tetrachlorobisphenol A and 2-hydroxyethyl phosphite.ALSO:A polyether composition of high functionality (normally greater than 7) is obtained by contacting sucrose and sorbitol with 1,2-propylene oxide at a temperature within the range 100-120 DEG  C., and continuing the introduction of the propylene oxide while maintaining the temperature between 80 DEG  and 120 DEG  C. until the hydroxyl number of the resulting polyether composition is in the range 350 to 600, the molar ratio of the sucrose to the sorbitol being between 0.5: 1 and 2: 1. The temperature is preferably maintained at 100-120 DEG  C. until at least 20% of the propylene oxide has reacted. The propylene oxide may be introduced into a mixture of the sorbitol and sucrose or the sucrose may be added gradually to the sorbitol along with the propylene oxide.  An alkali metal hydroxide catalyst is preferably present. The reaction is preferably carried out in the absence of water or in the presence of not more than 0.5% of water based on the product. Atmospheric or higher or lower pressures may be used.  The products are used to prepare polyurethane foams.
Patent GB-652954-A (GB)
Title: Improvements in or relating to spools
IPC: B65H75/14
Filed: 1948-08-24
Abstract: 652,954. Spools. BOUCHER & CO., Ltd., and WILKINSON, J. G. G. Aug. 24, 1948, No. 22230. [Class 120(iii)] [Also in Group XXII] In the manufacture of spools of the kind having a central portion and at each end thereof a flange-plate the outer face of which carries a metal bearing peg projecting axially outwards, the method of securing the bearing pegs to the flange-plates comprises positioning each bearing-peg centrally on a flange plate, holding these two members thus by a jig structure, part of which is a welding electrode abutting against a face of one of said members opposite the contacting faces thereof and applying to the other member another welding electrode to press the contacting faces of the members together whilst passing electric current through them from said electrodes. In the construction shown, each bearing peg, formed of mild steel and comprising a cylindrical portion 10, a bearing portion 11 and an attachment portion 12, is secured, in the manner described above, to a disc 14, also of mild steel, which in turn is spot welded at 19 to a further disc 18 which has a peripheral flange 22 around its outer edge and a concentric central circular opening, around the edge of which extends an inwardly directed flange 20 which fits inside and is spot welded to a mild steel tube 21.
Patent GB-435219-A (GB)
Title: Improved process for the preparation of ketene and its derivatives
IPC: C07C45/89
Filed: 1934-07-31
Abstract: Ketene and its derivatives are made by heating acetic acid vapour under reduced or partial pressure in the presence of a catalyst which promotes the formation of acetic anhydride under ordinary conditions, water, acetic acid and acetic anhydride being removed by condensation under such conditions that the ketene has not sufficient time to unite with the acetic acid or water, and the ketene then being isolated or submitted to a chemical reaction.  The removal of the water, acetic acid and acetic anhydride may be effected by cooling the vapours in not too large spaces or in liquids such as water which do not dissolve ketene, and the ketene may be isolated by cooling or by absorption in cooled liquids or may be converted into other compounds such as acetic anhydride.  The reaction of the ketene with water in the reaction vapours may be diminished by adding a small quantity of a nitrogen-containing base such as ammonia or pyridine. The acetic acid used as initial material may contain water.  In examples: (1) acetic acid vapour is passed through carborundum coated with sodium phosphate contained in a copper tube having a narrow quartz outlet tube reaching to the catalyst, the vapours being passed in succession through a water-cooled condenser, a condenser cooled to - 50 DEG  C. and two condensers containing acetic acid, the last one being cooled to - 60 DEG  C. and containing acetone in addition; a vacuum pump is attached at the end of the apparatus; the anhydride formed in the last two condensers corresponds with the ketene produced; (2) 0,2 per cent of pyridine is added to the acetic acid vapour; (3) 70 per cent acetic acid is employed, the catalyst being iron-free fireclay; (4) the water-cooled condenser of example 1 is replaced by a flask of water at 0 DEG  C. through which the vapours are passed; (5) 1 per cent of pyridine is added to the water in this flask; (6) the ketene is dissolved in cooled acetone instead of being reacted with acetic acid; (7) the reaction vessel is a vertical electrically heated carbon tube and trimethyl phosphate is added to the acetic acid as catalyst; (8) pyridine is added to the acetic acid as well as triethyl phosphate; (9) phosphorus is added to the acetic acid vapour; (10) phosphoric acid and ammonia are added to the acetic acid vapour.  Other examples describe the process effected at temperatures above 800 DEG  C.  British Specifications 194,719, 230,063, 279,070, [all in Class 2 (iii)], and 397,025 and U.S.A. Specification 1,879,497 are referred to.
Patent GB-1008163-A (GB)
Title: Epoxide resin compositions
Inventor: WINFIELD GRAHAM
IPC: C08G59/10
Filed: 1961-06-20
Abstract: An adduct of an aromatic primary or disecondary amine and a diglycidyl ether of an N - aryldiethanolamine (see Specification 1,008,161 is cured with the known hardener systems used in epoxide technology to yield a tough flexible product.  A typical adduct of aniline and N-phenyldiethanolamine diglycidyl ether has the structure <FORM:1008163/C3/1> The benzine nuclei may carry substituents. In the examples the adduct of N-phenyldiethanolamine diglycidyl ether and o-toluidine is formed into compositions which set hard with (a) a commercially available polyamide, (b) a polyamide together with tar acids and dibutyl phthalate, (c) triethylene diamine.  The water absorption of the hardened composition (c) is compared with that of the resin formed by the use of the identical hardener on the adduct of the diglycidyl ether of butane-1,4-diol and ortho-toluidine.  The Specification contains lists of hardeners, organic and inorganic fillers, and further provides for the use of the adducts in conjunction with known epoxides.ALSO:An adduct is made by heating a diglycidyl ether of the general formula <FORM:1008163/C2/1> wherein the benzene nucleus may be fused to another benzene nucleus and the said nucleus or nuclei carry at most three substituents in all, especially a diglycidyl ether of an acryl diethanolamine, with 0.5 to 0.95 mole of a primary or disecondary aromatic amine, especially a toluidine.  Suitably substituted diglycidyl ethers include diglycidyl ethers of diethanolamines, e.g. as disclosed and claimed in Specification 1,008,161, wherein the third nitrogen valency carries the residues phenyl, p-tollyl, p-chlorophenyl, p-methoxy phenyl, p-phenylphenyl, naphth-1-yl. Aromatic amines suitable include aniline, the toluidines, o-, m-, p-chloroanilines, 1- and 2-naphthylamines, N,N1-dimethylphenylenediamine, bis-(p - methylaminophenyl) methane.  A typical product resulting from the reaction of 1 mole of aniline with two moles of N-phenyldiethanolamine diglycidyl ether may be represented by the formula <FORM:1008163/C2/2> In the example, an adduct is prepared by heating the diglycidyl ether of N-phenyldiethanolamine with o-toluidine.
Patent GB-742864-A (GB)
Title: Improvements in or relating to sheet-bending machines
Inventor: NEWSON NORMAN CHARLES
IPC: B21C37/18
Filed: 1952-09-08
Abstract: 742,864. Curving sheets. ANSTEE, R. R., EDMUNDS, C. L., and SMITH, V. E. Aug. 5, 1953 [Sept. 8, 1952], No. 22507/52. Class 83 (4). A sheet-bending machine for making tubes comprises a rotatable forming roller adapted to co-operate with a forming block to bend a sheet into the shape of a tube by drawing the sheet between the block and the roller. A tapered roller 1 rotated by a handle 6, co-operates with a complementary forming block 5a, 5b, 5c to bend a pre-formed blank 8, whose bent-over edge 8a is engaged in a groove 7 in the roller, into the form of a tapered tube about the roller. An auxiliary block 10 is hinged to the forming block and adapted to be clamped thereon by a screw 14. Two pairs of steadying,rolls 9a, 9b are mounted in the block 10 to engage and support the roller 1, being held in place by cams 11. On rotating the cams 11 by levers 12 the rolls are permitted to retract as the sheet-metal blank passes under them. The roller 1 is slidable axially in bearings 2, 3 so that the smaller end may be withdrawn from the bearing 3 and the roller tilted to allow the formed tube to be withdrawn. Specification 730,181, [Group I], is referred to.
Patent GB-661638-A (GB)
Title: Improvements in or relating to method of and apparatus for releasably securing a capto a container
IPC: B65B7/28
Filed: 1949-08-30
Abstract: 661,638. Closing containers. QUAKER OATS CO. Aug. 30, 1949 [ Oct. 20, 1948], No. 22508/49. Class 125,(ii) A cap is releasably secured in an opening in a wall of a container E, Fig. 2, as the latter is being formed on a mandrel 4 which is moved step by step through the positions A-D, by being inserted in the opening with a depressed portion G, Fig. 7, projecting inwardly and the rim G3 against the outside, and, while the cap is in the opening, upsetting the depressed portion to form a bead as shown in Fig. 8. This may be effected by moving a plunger 116 to squeeze the cap against a stationary anvil 20 within the mandrel, as in Fig. 8, or by moving the anvil against a plunger when the latter is stationary. The caps are delivered one at a time to a screw conveyer 46, 48, Fig. 2, and are removed therefrom by a transfer mechanism which swings them one at a time through 90 degrees and places them in the opening in the container at position B. The container now travels to position C, where the cap is upset by the plunger 116.
Patent GB-1113109-A (GB)
Title: Improvements in brushless direct current motors
IPC: H02K29/08
Filed: 1965-05-27
Abstract: 1,113,109. Electric motors. GENERAL ELECTRIC CO. 27 May, 1965 [30 June, 1964], No. 22551/65. Heading H2A. A brushless D.C. motor comprises a permanent magnet rotor 33 and a pair of stator windings 31, 32 fed respectively with sine and cosine voltages derived in dependence of the rotor position from the amplified output of a pair of Hall (or other) generators 34, 35 located in the stator/rotor gap. As described, the Hall generators 34, 35 are of thin film InAs on ferrite substrate or InSb secured in slots by epoxy resin and are supplied with direct current I x . Their outputs are respectively amplified at 43, 44 and fed to linear variable mark-space pulse producing amplifiers 41, 42 controlled by a specified inverter 40. The feedback of voltages across resistors 38, 39 ensures that the angle between the rotating fields of the rotor and stator is maintained constant. The torque is independent of rotor position. When synchronous speed is attained, the Hall devices may be disconnected and replaced by a fixed frequency signal.
Patent GB-1239863-A (GB)
Title: Treatment of zirconium and its alloys by chemical displacement
Inventor: BROSSA FRANCESCO
IPC: C23G1/10
Filed: 1969-05-02
Abstract: 1,239,863. Plating zirconium. EUROPEAN ATOMIC ENERGY COMMUNITY. May 2, 1969 [May 13, 1968], No. 22591/69. Heading C7F. Zirconium and its alloys are plated by chemical displacement, the workpiece being first pickled and then immersed in a bath of molten CuCl 2  in an inert atmosphere at 430‹ -600‹C. for 10 seconds to 20 minutes to obtain a copper coating. Residual salts adhering to the coated surface may be removed by immersion in a LiCl-KCl eutectic at 500‹C, for 8-10 seconds, followed by water rinsing. The Cu coating may be used as a base for electro-plated Ni, Au, Ag, Cr, Cd, Pb, As, or Sb, or as a base for coatings of Nb, Mo, or W deposited from their halides in the gaseous phase.
Patent GB-1369293-A (GB)
Title: Electric motor speed sensing circuit
IPC: H02P7/288
Filed: 1972-05-15
Abstract: 1369293 Measuring speed electrically CALIFORNIA DATA MACHINES 15 May 1972 [19 May 1971] 22680/72 Heading G1N [Also in Division G3] To enable the speed of a D.C. motor 10 to be determined by measuring its back e.m.f. the motor supply is periodically reduced effectively to zero by switching the input to a power amplifier 15, by which the motor is supplied, between high (drive) and low (e.g. substantially zero) levels. The rate of switching and the mark/space ratio is determined by an independently operating device 25, which comprises a multi-vibrator formed of logic elements Fig. 3 (not shown). The back e.m.f. is detected in a sample and hold circuit 35, comprising an operational amplifier and a capacitor, which is switched by 25 in synchronism with the input to 15. 42 is an isolating resistor connected to ground during drive periods. The speed is displayed on a meter 37a. The input to 15 is derived from the difference between a reference signal 60 and the back e.m.f. This difference is applied via an amplifier 29 which is non-linear with respect to frequency response, to provide stabilization. The low level signal is taken from divider 31. A pulse shaper 32 is connected as shown so that after switch-over the input signal to 15 changes exponentially. The switches 23, 38 and 43 comprise junction and field effect transistors. The motor may drive a magnetic tape capstan, and the motors of several tape machines may be selectively controlled by a single set of control elements.
Patent GB-367725-A (GB)
Title: Improvements in and relating to spinning centrifuges
IPC: D01D7/02
Filed: 1931-08-12
Abstract: 367,725. Centrifugal spinning-apparatus for artificial silk. BRITISH BEMBERG, Ltd., Hazel House, Milk Street, London. Aug. 12, 1931, No. 22821. Convention date, Aug. 14, 1930. [Class 120 (ii).] The guide tube of centrifugal apparatus for spinning artificial silk is reciprocated by means independent of the drive of the spinning pot and of the main drive. The reciprocation may be effected by spring mechanism, an electric, water, or compressed air motor mounted directly on the casing of the apparatus, for example on the cover or on the side of the pot or on the casing of the motor. As shown, a clock spring 5 operates a cam drum 6 connected to the guide tube 3, the whole being mounted in a casing 4 arranged on the cover 14 of the casing of the pot.
Patent GB-699566-A (GB)
Title: Improvements in discharge tube circuits for producing a sawtooth current
IPC: H03K4/28
Filed: 1952-09-11
Abstract: 699,566. Saw-tooth generating circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept 11, 1952 [Sept. 14, 1951], No. 22822/52. Class 40 (vi). The damping diode 10 of a saw-tooth current generator has its cathode 9 heated by radiation from a filament 11 supplied in series with the filaments 13-16 of other valves which take a larger filament current, and a resistor 12 having a negative temperature coefficient is connected across the diode filament. The cathode-filament spacing is large to avoid voltage breakdown, but the cathode heating time is not excessive since until the negative temperature coefficient resistance warms up the diode filament takes a larger current than normal.
Patent GB-695969-A (GB)
Title: Improvements in or relating to apparatus for separating water or dust from air
IPC: B01D45/06
Filed: 1950-02-18
Abstract: 695,969. Centrifugal machines. THEED, W. D. L. Feb. 7, 1952 [Feb. 18, 1950], No. 22853/50. Class 23 [Also in Group XXVIII] An apparatus for separating water or dust particles from air comprises an initial centrifugal. separator A having helical ribs A<SP>2</SP> on an inner conical wall and a valvecontrolled drain B through which separated matter may be discharged, a passage C into which cleaned air is discharged from the separator A and having undulating plates C' of radio-active cobalt to effect coagulation of suspended particles. and a final centrifugal separator D of similar construction to the initial separator A serving to separate said coagulated particles. In a modification the plates C<SP>1</SP> are replaced by a plurality of grids and in a further modification the radio-active cobalt is in plate form supported by a grating.
Patent GB-517637-A (GB)
Title: Improvements in coin-testers for automatic vending machines
IPC: G07F1/02
Filed: 1938-08-02
Abstract: 517,637. Coin-freed apparatus. WITTENBORG, E. Aug. 2, 1938, No.-22874. [Class 27] Testing coins.-A coin 3, while being inserted through a slot 2 in the front plate 1 of a coinfreed vending machine, meets a pin 4 on a double-armed lever 6 and rocks this against the action of a spring 7. The rear end of the lever engages a pin 9 on an arm 11 pivoted at 10 and resiliently connected to a coin guiding channel 12 by a spring 13 and pin-and-slot connection 14, 15. The pin 9 also rocks a lever 18 by engaging a lateral extension 16 thereof so that a gripping device 19 on the front of the lever is lowered behind the coin slot. The gripping device comprises a pair of crossed levers 27 pivoted at 22 to the head 19 of the lever 18 and pressed together by a spring, the lower ends of, the levers carrying points 20 facing each other. The pin points engage the coin inside its rim and, when the lever 18 is returned by a counterweight 23, carry the coin over a shoot 25 leading to the releasing mechanism of the machine. The arms 27 meet a stop 24 which opens them to release the coin and allow it to drop down the shoot. If the coin is worn or has not got a rim, it is not gripped by the device 19, but falls down a return shoot 26.