baber/WOPTO huggingface dataset:
Patent GB-669200-A (GB)
Title: Improvements in or relating to metal salts for cyclohexyl-sulphamic acid
Filed: 1949-05-04
Abstract: Metal salts of cyclohexylsulphamic acid are obtained by reacting cyclohexylamine with chlorosulphonic acid in the presence of a tertiary amine more basic than cyclohexylamine and metathesis of the resulting product with a metallic base more basic than the tertiary amine.  The tertiary amine should generally be one having a boiling-point lower than cyclohexylamine and is preferably triethylamine.  Other tertiary amines specified are trimethylamine, tripropylamine, tributylamine, diethylmethylamine and methylethylpropylamine.  The metal salts specified are the alkali metal salts, alkaline earth metal salts and the silver, cadmium and zinc salts.  It is preferred to use an anhydrous inert solvent such as chloroform, carbon tetrachloride, benzene and cyclohexane as reaction medium for the cyclohexylamine and chlorosulphonic acid.  In an example, chlorosulphonic acid dissolved in dry chloroform is added to a mixture of cyclohexylamine and triethylamine in dry chloroform. The chloroform is then removed by distillation and a solution of sodium hydroxide added.  The triethylamine which separates is removed and the brown solution is cooled in an ice bath and the crystalline material filtered off, washed with methanol and then treated with decolourizing charcoal.  It is stated that the calcium salt may be prepared by using calcium hydroxide and the silver salt by using silver hydroxide prepared by reacting silver nitrate with sodium hydroxide.  U.S.A. Specifications 2,275,125 and 2,383,617 are referred to.
Patent GB-736793-A (GB)
Title: Improvements in cardboard boxes or containers
Inventor: VAUGHAN-PARKS NORMAN CECIL
IPC: B65D5/52
Filed: 1952-05-12
Abstract: 736,793. Boxes. SHIRLEY & CO., Ltd., R. L. Aug. 10, 1953 [May 12, 1952], No. 12018/52. Class 18. The top panel of a carton has an extension forming part of the front wall and carrying a tab for insertion in a slot at the junction of the front wall with the base, the top panel having an intermediate crease line enabling it to fold back to a display position. In one embodiment the top panel 8 is cut to provide corner webs 7 and its tongue 15 tucks into a slot 18 formed between the base 12 and an extension 14 on its free edge lying against part of the front wall 10. The rear webs 7 are slit to allow passage of the top panel extension 15 to rest against the rear wall. In another embodiment tongues 16 on the front wall 27 engage slots 28 between the base and an extension 20 which is integral with an apertured panel 22 locating the contents. Each embodiment may be formed from a single blank.
Patent GB-405242-A (GB)
Title: Improved method of, and means for, igniting liquid-oxygen explosive charges
IPC: F42B3/12
Filed: 1932-04-27
Abstract: 405,242. Blasting-fuzes. LIGHTFOOT REFRIGERATION CO., Ltd., Bush House Aldwych, London. April 27, 1932, No. 12122. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 22, 1932]. [Class 9 (i).] Liquid-oxygen explosive charges are fired by an electric spark, flash, or flame, for example by means of a wire coated with combustible material and heated by an electric current. The wire 2 connected across the ends of leads 3, 4 is held in a cardboard frame 5 enclosed by a paper wrapping 8. The enclosed space is filled with inert material; and before use, the frame is dipped in liquid oxygen.
Patent GB-1457859-A (GB)
Title: Apparatus for inserting an intrauterine
IPC: A61F6/14
Filed: 1975-03-24
Abstract: 1457859 Apparatus for inserting an intrauterine device ALZA CORP 24 March 1975 [27 Marsh 1974] 12164/75 Heading A5R Apparatus for inserting an intrauterine device 10, the device having a stem 13 and at least one flexible arm (14) Fig. 1 (not shown), 15 extending outwardly from the stem, comprises a hollow inserter 11 and a cap 12, the inserter 11 comprising a hollow, tapered, curved tube 20 open at both ends with channels 24 on an end 23 at which device 10 is mounted, the channels receiving the arms to prevent rotation of the device, and stem 13 extending into tube 20; and cap 12 comprising a hollow sleeve 28 open at both ends which slides snugly over end 23 and has two open ended axial slots 30 to receive arms (14), 15 and giving the cap resilience, and two axial grooves 36 on its inner surface which align with slots 30 and slidingly receive the arms, which are folded inwardly, as the sleeve is slid axially on the tube 20. Each slot 30 has protrusions 33 on its axial edges which engage arms (14), 15 and prevent cap 12 being displaced from tube 20. The arms are folded axially along the device by bracing flanges 34 of cap 12 against a sterile field 53, Fig. 4, and moving tube 20 and the device towards field 53, causing the arms to move towards closed ends 54 of slots 30, the arms then being bent axially against tube 20 within cap 12. As the device and apparatus are inserted into the body, flanges 34 rest against the cervical os, Fig. 6 (not shown), cap 12 remaining outside the cervical canal. Tube 20 is pushed towards the uterine cavity (56), out through the end of cap 12, Fig. 7 (not shown), and into the cavity, Fig. 8, (not shown), the arms resuming their original position, and tube 20 is withdrawn. Owing to its resiliency, cap 12 does not slide away from end 23 of the tube. Figs. 9A, 9B, 10A, 10B (not shown) depict two alternative embodiments of cap 12, cap (37), Figs. 9A, B, not being flexible.
Patent GB-734415-A (GB)
Title: Improvements in or relating to toy electric railways
Inventor: PRIOR FRANCIS JOHN
IPC: A63H19/18
Filed: 1952-05-14
Abstract: 734,415. Couplings for toy railway vehicles. TRIX, Ltd. Aug. 12. 1953 [May 14, 1952], No. 12197/52. Class 132(3). Means for electrically connecting two toy electric railway vehicles comprise an electrical plug and a socket which also serve to mechanically couple the vehicles. In Fig. 1 the pins 2 of a plug 1 engage in a socket 3 secured in a vehicle 4 and the other end of the plug has a projection 5, 6 of which a ball 6 is engageable behind a hole 9 formed in a slotted link plate 7 attached to the rear wall of the other vehicle. Alternatively, the hole 9 and slot 8 may be made in the rear wall of the vehicle. In Fig. 2, with the projection 5 in the hole 9, the ball 6 is engaged on the other side of the plate 7. The electric leads pass through the projection and ball 5, 6 and a locking device may be employed with the plug and socket.
Patent GB-118107-A (GB)
Title: Improvements in or relating to Flower Holders.
Inventor: ARTURO BARDELLI
IPC: A45F5/08
Filed: 1918-07-26
Abstract: 118,107. Bardelli, A. July 28, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Flower - holders. - A flower-holder more especially for attaching a small bouquet to wearing-apparel, is constructed of wire bent into a ring a with a part b bent out of the plane of the ring. A pin c, crossing the ring, attaches the holder to the material e.
Patent GB-559493-A (GB)
Title: Improvements in recording-apparatus for ships' telegraphs
IPC: G08B9/04
Filed: 1942-09-01
Abstract: 559,493. Order-telegraphs electric selective signalling systems. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 1, 1942, No. 12336. Convention date, Oct. 13, 1941. [Classes 40 (i) and 118 (ii)] A time-recording device prints automatically the character and the time of each message transmitted on a ship's telegraph and of each blast of the whistle. Means are also provided for making manual entries in the record and for printing automatically the times such entries are made. The device comprises a casing A, Fig. 1, with a window that exposes a portion of a paper strip 4 on which the record is printed. A cover 2, pivoted to the casing, can be raised to allow entries in writing to be made on the strip 4, the raising and lowering of the cover being printed automatically on the strip. The ship's telegraph 22, Fig. 7, which may be of any usual construction, has the shaft of its handle 23 geared to a rotatable brush 26 which sweeps over a ring of contacts 28, each contact corresponding to an order on the telegraph dial. The contacts control the operation of a positioning motor 29, Fig. 5, which rotates step-by-step with the movement of the brush 26, and therefore of the handle 23, in either direction. The motor 29 turns a notched wheel 32, and also a wheel 38 provided on its edge with type corresponding to the orders on the telegraph dial. Another similar selector switch and positioning- motor, 29<SP>1</SP>, operated by the engine room telegraph, similarly turns another typewheel 39 in either direction, so that the confirming signals from the engine room are also recorded. Other typewheels are operated by a clock and by the use of the ship's whistle. The paper strip 4 is moved step-by-step each time a recording is made, and it is printed when it is struck into contact with the type by a hammer 46, Fig. 6, which is drawn back by an electromagnet and tripped. This takes place when movement of the notched wheel 32 by the motor 29 momentarily closes contacts 40, 41, and initiates the operation of the printing circuit, a time-delay circuit consisting of a condenser C, Fig. 9, and a variable resistance RES being used to prevent operation of the mechanism until the handle 23 of the telegraph has come to rest. A pair of contacts similar to the contacts 40, 41 is operated by the motor 291. When the handle 23 comes to rest, a relay R1 is energized and brings into action a succession of relays which finally connects the electromagnet 51, that operates the printing- hammer 46, to a D.C. line. The printing- mechanism is also operated when a pair of contacts 9 is closed by the raising and lowering of the pivoted cover 2, and by the closing of the contacts 74 when steam pressure is admitted to the whistle 73. The operation of the printing-mechanism also feeds the paper strip and the ink ribbon and also opens contacts 67, that break the circuits of all the relays to prepare the apparatus for the next signal.
Patent GB-167287-A (GB)
Title: An improved window stay and fastening
IPC: E05C17/18
Filed: 1920-05-05
Abstract: 167,287. Green, H. H. May 5, 1920. Stays.-A casement stay A formed with holes a<1> adapted to engage with a pin c secured to the window framing, and arranged so that as the casement is closed it engages the projecting plate c<1> of the pin c to act as a lever to force the window into the closed position, is formed at its lower end with a hole a<2> to engage an horizontal pin b<2> secured to the casement B.
Patent GB-566494-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P7/34
Filed: 1942-09-04
Abstract: 566,494. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 4, 1942, No. 12500. Convention date, Sept. 6, 1941. [Class 38 (iii)] Motors 10, 11 are supplied by a generator 12, the separate field 12k of which is fed by an armature-reaction excited machine 18, having variably - excited, reversely - directed control fields 18c, 18d, energized over resistors 27, 29 and controller 20. A differential field 18h across a shunt 17 in the motor circuit and associated with a biassing potentiometer 14 and rectifiers 21, 22, comes into action when the load current exceeds a predetermined value and thereafter gives the generator a steeply drooping volt/ampere characteristic.- An anti-hunting field 18i on the machine 18, in series with a capacitor 23 damps out sudden changes of excitation thereof. Capacitors 31, 32 associated with the resistors 27, 29 give field forcing when accelerating from rest, and overpower the effect of the anti-hunting field 18i. The system is applied to the swing motion of an electric shovel, in which, after a cut, the shovel is quickly swung to the dumping position, whereupon the controller is reversed so as to arrest the shovel first by regenerative braking and then by plugging, whereupon the shovel is accelerated in the reverse direction and it is stopped at the cutting position by centring the controller 20, whereupon a contactor 26 closes so as to convert the anti-hunting field into a suicide field. The Specification as open to inspection under Sect. 91 described also a modified system for a motor effecting the cutting motion of the shovel, the potentiometer being energized from an A.C. supply over a saturable reactor and rectifier, and the saturating winding being energized according to the voltage across the motor, so that the bias varies inversely with motor current. This subject-matter does not appear in the Specification as accepted.
Patent GB-583954-A (GB)
Title: Mounting device for an electrical circuit element
IPC: H05K7/12
Filed: 1944-07-01
Abstract: 583,954. Mounting circuit elements. HAZELTINE CORPORATION. July 1, 1944, No. 12573. Convention date, Sept. 15, ,1943.- [Class 40 (v)] [Also in Groups XXXV and XXXVI] A device for mounting a circuit element on a supporting structure of a radio receiver or the like is constructed to reduce to a minimum the length of the connecting leads of the elements and to reduce stray capacitances. The device comprises a socket shaped to receive the element and to support it throughout a substantial portion of its length and may be of resilient conductive material. In the example shown in Fig. 2, the device is constructed to support in a socket 10 a standard metalcased byepass condenser C. Of the condenser leads L<1>, L<2> one lead L<1> is internally connected to the metal case and is brought out for connection to a suitable ground terminal, while the other lead L<2> is insulated from the case. An integral projection 13 extends from the lower end of the socket 10 and has a flange portlon 14 which carries a hollow externallythreaded screw 15 and nut 18. A skirt 16 formed integrally with member 15 and including a keyway 17, Fig. 3, which engaging with a projection S<1> of the supporting structure S locks the socket 10 against rotation. Electrical connections, with the mounting device may be made through notched terminal lugs 19, 20. Additional connection with the element C is available through the internal bore of the member 15 which may be fitted with an insulating sleeve 21. The socket may be used to support other circuit elements, for example induction coils or resistances.
Patent GB-922409-A (GB)
Title: Macrocyclic lactones
Inventor: RAPHAEL RALPH ALEXANDER
IPC: C07D315/00
Filed: 1960-04-08
Abstract: Macrocyclic lactones containing 14 to 18 carbon atoms, which are fully saturated or contain one double bond with or without one triple bond, or two double or two triple bonds, are obtained by esterifying an alcohol of general formula HC­C-(CH2)m-OH with a carboxylic acid or acid chloride of general formula HC­C-(CH2)n-CO-X [X=OH or Cl] to form an ester of general formula HC­C-(CH2)m-O-CO-(CH2)n-C­CH in which m and n individually are between 1 and 12, and together total between 9 and 13, then coupling together the terminal acetylenic groups of the resulting ester in the presence of cupric ions (Glaser reaction) with or without submitting the lactone so formed to partial or complete hydrogenation.  For the cyclisation step, an ether such as ethyl ether, ethylene glycol dimethyl ether or tetrahydrofuran, and a tertiary base such as pyridine are used, and also an inert waterimmiscible diluent such as benzene.  The hydrogenation of the cyclised ester can be carried out stepwise to give ene-yne, diene, monene and saturated lactones.  Examples describe the preparation of macrocyclic lactone by reacting but-1-yn-4-ol with undeconoyl chloride in the presence of pyridine and ether, cyclising the resulting ester with the aid of cupric acetate, and then hydrogenating the diynic lactone so formed with Lindlar's catalyst to yield a dienic C15 lactone or with 10% palladium on charcoal to yield monenic C15 lactone or with platinum oxide (PtO2) to yield the saturated lactone cyclopentadecanolide.  The lactones may be used in perfumery.
Patent GB-581778-A (GB)
Title: Improvements in luminescent materials
IPC: C09K11/70
Filed: 1943-08-06
Abstract: 581,778. Luminescent materials. GENERAL ELECTRIC CO., Ltd., McKEAG, A. H., and RANBY, P. W. Aug. 6, 1943, No. 12712. [Class 39 (i)] A phosphorescent material of the matrix activator type is prepared by heating a mixture containing cadmium, phosphorus, oxygen and lead. The temperature of heating is between 700‹ C. and 1000‹ C. The mixture may consist of cadmium and lead phosphate: Manganese phosphate and/or cadmium fluoride may be also added.
Patent GB-216321-A (GB)
Title: Improvements relating to elastic fluid turbines
IPC: F01D9/04
Filed: 1923-05-11
Abstract: 216,321. Baumann, K., and Metropolitan-Vickers Electrical Co., Ltd. May 11, 1923. Nozzles.-Relates to means for guiding leakage fluid into an issuing jet in the direction of the latter. In a nozzle box wherein the boundarv walls 6 of the nozzles 2 are reduced to knife edges, the plates 3 are left intact and allowed to project through the rings 4, 5 to guide leakage steam as set out above. In a modification, Fig. 5. a series of notches or grooves 7 are cut in the boundaries 6, the notches being disposed either in the mean directions of the jets or axially of the turbine. Various forms of notches are described. The walls 3 may also be reduced to knife edges or notched.
Patent GB-202011-A (GB)
Title: Improvements in or relating to metal tipping for the propellors or tractors of aircraft and the like
IPC: B21D53/78
Filed: 1922-05-08
Abstract: 202,011. Roe & Co., Ltd., A. V., and Chadwick, R. May 8, 1922. Screw propellers.-A tipping for a screw propeller comprises a strip of metal 1 with scalloped or undulating edges 5 and semicircular plates 3, 4 at the end 2 which is to embrace the tip of the propeller. The sheath is bent over the edge of the blade, and the discs overlap at the tip. The scallops are lined up when the sheath is secured by rivets, but are staggered with the holes 6 out of line when secured by screws.
Patent GB-1387667-A (GB)
Title: Electron tube
IPC: H01J21/18
Filed: 1972-03-20
Abstract: 1387667 Discharge tubes INSTITUT YADERNOI FIZIKI SIBIRSKOGO OTDELENIA AKADEMII NAUK SSSR 20 March 1972 12952/72 Heading H1D A cathode 1, cavity anode 2, accelerating electrode 3 and intermediate electrode 4 having an aperture of substantially smaller area than the surface area of the anode 2 of a high-voltage electron tube are connected across a voltage dividing resistance network such that the indicated potential distributions are obtained in the conduction (line 7), and cut-off (line 8), conditions. Electrode 3 is held at substantially the same potential as electrode 4 so that an equipotential space 6 is produced. The anode 2 is maintained at approximately the same potential as the cathode 1. In consequence there is a decelerating field between electrode 4 and the anode 2 and thermal losses incurred at the anode 2 when rectifying or inverting high voltages are small. Thermal losses due to electrons striking the electrode 4 may be minimized by providing a sufficiently large aperture in the electrode and/or by providing a magnetic focusing system between electrodes 3 and 4. Such a system may comprise a number of annular permanent magnets (Fig. 2, not shown), supported by plates which, together with the anode 2, cathode 1, and electrodes 3 and 4, are connected to a potential divider outside the envelope 5. An additional control electrode may be provided between the cathode 1 and electrode 3. A plurality of electrode systems may be provided in the same envelope, and two such arrangements are described. In one arrangement (Figs. 3a and 3b, not shown), the electrodes are all concentric rings with the anodes surrounding the cathodes. In the other arrangement (Fig. 4, not shown), the cathodes are strips, the electrodes 3 and 4 are rods, and the anodes are elongated cavities all parallel to and surrounding the tube axis.
Patent GB-1522421-A (GB)
Title: Audioamplifier control for motor vehicles
IPC: H03G3/32
Filed: 1976-03-31
Abstract: 1522421 Gain control PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 31 March 1976 [3 April 1975] 12952/76 Heading H3T The gain of an audio amplifier system for a motor vehicle is automatically controlled by the frequency of the ignition pulses which are picked up from the power supply. A car radio 12, Fig. 1 receives its power supply from the electrical system of the car via terminal 13. After removal of noise by choke 25 and capacitor 26 the power is supplied to a tuning unit 28, power amplifier 32, gain control amplifier 21 and a frequency detector 28. The noise pulses on the supply are applied to a frequency detector 18. In frequency detector 18, the largest noise pulses, which correspond to the ignition pulses, are selected by a threshold circuit, the threshold of which depends upon the peak pulse level and made of uniform length by a mono-stable multivibrator before being integrated to provide the gain control signal for amplifier 21. Manual volume control is provided by a potentiometer 22.
Patent GB-218437-A (GB)
Title: Improvements in pistons
IPC: F02F3/02
Filed: 1923-05-15
Abstract: 218,437. Ford, L. C. May 15, 1923. Pistons; reducing and equalizing wear of.- In a piston having its skirt split to provide resilient parts, the resilient parts B, Care formed by cutting oblique and transverse slots b, b<1>, c, c<1> and are connected to the resilient crown E by one or more compression members b<2>, c<2>, which engage their free ends. Scraper or bearing rings F may be arranged in the skirt as shown. The piston may be cut away in its gudgeon-pin sides, the two portions of skirt remaining being each provided with a segmental piece F. The groove containing the ring F is made parallel for a short distance to permit insertion of the ring. The compression members c<2>, b<2> may be detachable and sprung into position between abutments on the skirt and crown.
Patent GB-1103730-A (GB)
Title: Modified polyoxymethylenes
IPC: C08G2/00
Filed: 1966-03-24
Abstract: Modified polyoxymethylenes are prepared by reacting in an acidic reaction medium a polyoxymethylene with dioxolan, or a linear poly-formal containing alternating oxymethylene and oxyethylene units.  The polyoxymethylene has a number average molecular weight of at least 10,000 and the reaction is conducted at 0 DEG  to 200 DEG C.  Suitable acid catalysts are Lewis acids and their complexes, e.g. with ethers, protonic acids, e.g. organic carboxylic and inorganic acids, phenols, and salts of strong acids with weak bases, preferred acids being PF5, SnBr4, BF3, and triethyl oxonium fluoborate. The unreacted polyoxymethylene may be removed by dissolving the unpurified product, protected from oxygen, in the presence of a strong amine or caustic alkali to depolymerize unreacted polymer. In the examples, (1) a mixture of toluene and dioxolane is saturated with formaldehyde gas, a lecithin catalyst added, the temperature maintained at 40 DEG  C., the formaldehyde supply cut off, after which BF3.(C2H5)2O catalyst is added and the temperature raised to 70 DEG  C., (2) conducted as in (1) but using SnBr4 in place of lecithin and (3) dioxolane was homopolymerized using BF3. (C2H5)2O as catalyst and a temperature of 70 DEG  C., the resulting mixture diluted with toluene, polyoxymethylene dimethyl ether added, and further heating at 70 DEG  C. carried out to yield the modified product.  The products are stated to be oxymethylene polymers containing intercalated units derived from the dioxolan or linear poly-formal.