baber/WOPTO huggingface dataset:
Patent GB-1464463-A (GB)
Title: Process for the manufacture of carboxylic acid chlorides
IPC: C07C57/64
Filed: 1974-04-23
Abstract: 1464463 Garboxylic acid chloride production HOECHST AG 23 April 1974 [26 April 1973] 17689/74 Heading C2C Carboxylic acid chlorides are prepared by reacting a carboxylic acid or anhydride with COCl 2  at 0-180 C. in the presence of 0À01- 10% by weight of a phosphine oxide or sulphide of general formula where X is O or S; R 1  and R 2  are each optionally substituted aliphatic radicals of up to 20C atoms or an optionally substituted phenyl radical, or R 1  and R 2  together form a saturated or unsaturated optionally substituted alkylene radical of 4 or 5C atoms and R 3  is a saturated or unsaturated optionally substituted aliphatic radical of up to 20C atoms or an optionally substituted phenyl radical, or of a reaction product of the phosphine with COCl 2  and/or a carboxylic acid and/or carboxylic acid anhydride, or a mixture of two or more such compounds. R 1  and R 2  are preferably optionally substituted alkyl radicals of up to 6C atoms and R 3  a saturated or unsaturated aliphatic radical bearing one or more halogen atoms, hydroxy, alkoxy, acyloxy, nitrile, aryl, substituted aryl, aryloxy or substituted aryloxy groups. The catalyst is preferably used in an amount of 0À05-2, especially 0À1-0À2% by weight. The process may be carried out in an inert solvent or suspension agent.
Patent GB-680778-A (GB)
Title: Adducts of bisnor-5, 7, 9 (11)-cholatrien-22-al-3-one
IPC: C07J71/00
Filed: 1950-07-17
Abstract: Bisnor - 5,7,9(11) - cholatrien - 22 - al - 3 - one adducts of the formula <FORM:0680778/IV (b)/1> wherein A is an adduct radical derived from maleic acid, maleic anhydride or a diester of maleic acid wherein the esterifying radicals are stable towards oxidation by ozone are obtained by ozonizing the 22:23 double bond of dehydroergosten-3-one of the formula <FORM:0680778/IV (b)/2> with from about 1.0 to about 1.25 mols. of ozone per mole. of starting dehydroergosten-3-one adduct, in an organic solvent for the reaction, at a temperature between about -80 DEG  C. and +30 DEG  C., decomposing the thus-produced 22:23 ozonide under reductive conditions, and isolating the bisnor-5,7,9(11)-cholatrien-22-al-3-one adduct from the reaction product.  The ester groups of the maleic acid diester are non-reactive under the conditions of the reaction and may contain from one to eight carbon atoms inclusive.  The ozonide may be decomposed with powdered zinc and glacial acetic acid.
Patent GB-545057-A (GB)
Title: Deposition of iron powder
IPC: C25C5/02
Filed: 1940-12-19
Abstract: 545,057. Electrodeposition of iron. MEHL, E. Dec. 19, 1940, No. 17866. [Class 41] Iron powders are produced by electrolyzing an aqueous solution of a caustic alkali such as sodium, potassium, or barium hydroxide, or a mixture of such caustic alkalies, of a strength exceeding 9 normal at a temperature greater than 100‹C. using anodes of ferrous material, for a period sufficient to build up on the cathode a spongy iron deposit which is detached or collected and if necessary comminuted whilst in a wet state. A low cathode efficiency, i.e. below 0.5. grams of deposit per ampere hour, is preferred, as this tends to produce powdery or spongy deposits. A small quantity of a chloride or sulphate such as sodium chloride, in amount not more than 5 per cent of the caustic alkali present or below 10 grams per litre of electrolyte, may be added to the bath.
Patent GB-852835-A (GB)
Title: Electronic multiplying arrangement
Inventor: SCHULZE JOACHIM
IPC: G06F7/52
Filed: 1957-06-05
Abstract: 852,835. Digital electric calculating apparatus. BUCHUNGSMASCHINENWERK KARL-MARX-STADT VEB. June 5, 1957, No. 17890/57. Class 106 (1). In apparatus for repeated-addition multiplication of single-digit factors the multiplicand register receives a number of impulses equivalent to the product of the multiplier and the base of the number system used. The multiplying arrangement shown comprises electronic decimal counters Z0, Z15 and Z10-Z11 for a multiplicand digit, a multiplier digit and the product respectively, each counter comprising four Eccles-Jordan trigger circuits arranged to have a counting capacity of ten. Multiplication is performed by repeated addition of the multiplicand under control of pulses A and B supplied alternately on separate output lines 25, 35 by a multivibrator M1. A start pulse sets an Eccles-Jordan trigger circuit FFO to open gate G0 to allow A-pulses to pass via gate G1 to Z15 and a " tens" control counter Z9. When a number of pulses corresponding to the tens complement of the multiplier digit have been entered, Z15 produces a carry output which switches trigger FF1 to close gate G1 and open gates G00 and G2. The A-pulses are then applied to " units " control counter Z8 and to multiplicand counter ZO, the first pulse also setting trigger FF3 to open gate G3. At a differential time corresponding to the multiplicand digit, Z0 sends a carry output to set FF10 and open gate G10 to allow B-pulses from G3 corresponding in number to the digit value to pass to units product counter Z10. The carry output from Z8 as well as stepping on Z9 and Z15, resets FF3 which then opens G4 instead of G3 so that the following B-pulse resets FF-10. FF3 is again set by the next A-pulse from G2 and the multiplicand digit is again transferred to Z10, this process being repeated a number of times corresponding to the multiplier digit, until a carry output is obtained from Z9 which sets trigger FF9. When this trigger is reset by the next B-pulse from G4 it supplies a resetting pulse to FF0 and FF1, FF0 then transmitting an end-of-multiplication control pulse Rv. Provision may be made for dealing with multidigit multipliers. In another arrangement (Fig. 3, not shown), the multiplicand and multiplier digits are each set up by closing a contact connected to the output of a corresponding trigger of a decimal ring counter, the control counters Z8, Z9 being omitted. Specification 777,964 is referred to.
Patent GB-957044-A (GB)
Title: Thermal relays
IPC: H01H37/60
Filed: 1960-05-20
Abstract: 957,044. Thermal switches. TEXAS INSTRUMENTS Inc. May 20, 1960 [July 29, 1959], No. 17950/60. Heading H2B. A current-carrying bi-metal 70 is insulatedly connected at 86 to the central arm 46 of a trifurcated snap-action blade 40 such that, upon heating, the bi-metal moves the central arm 46 downwardly to cause outer arm 48 to snap upwardly and open normally closed contacts 34, 69, while continued downward movement of the bi-metal with further heating causes closing of shunt contacts 32, 72, to protect the bi-metal against overheating. An insulating adjustment screw 90 sets the operating temperature of the bi-metal. An insulating ridge 94 separates contacts 34, 32, and a similar ridge 96 separates terminals 26, 28. Bi-metal 70 comprises two U-shaped arms united at end 84 and connected across terminals 26, 28. Switching blade 40 is connected to terminal 28, while fixed contact 32 is on terminal 26, and the switch protects the start or phase windings of split-phase electric motors. The insulating cover 100 may carry an additional fixed contact on ridge 104 for co-operating with the moving contact 69. The over-centre blade 60 between arms 46, 48, may be replaced by a coil spring.
Patent GB-134338-A (GB)
Title: Detector for Varying Magnetic Field.
Inventor: HUNT FREDERIC OSMOND
IPC: G01R33/02
Filed: 1918-11-04
Abstract: 134,338. Hunt, F. O. Nov. 4, 1918. Magnetic measurements; electro-magnetic current meters.-For detecting the presence and direction of weak varying or alternating magnetic fields and for use in oscillographs and vibration galvanometers, pole-pieces are employed which are magnetized by permanent magnets or electromagnets to a flux-density corresponding to the steepest part of the magnetization curve. In the form shown in Fig. 1, two laminated pole-pieces P are magnetized by an electro-magnet M. Over the gap between the pole-pieces P is adjustably mounted a vibrating reed R of magnetic material. The presence of a varying or alternating magnetic field is indicated by vibration of the reed, its direction being determined by cessation of this vibration when the axis of the pole-pieces is at right-angles to the field. The reed may tilt a mirror or cause a diaphragm to emit a sound- Alternatively, the magnetic changes may be detected by coils C on the pole-pieces connected to a vibration galvanometer or telephone T, the reed acting as an amplifier; or the reed may be omitted and an external amplifier V utilized, in which case the pole-pieces may be replaced by a continuous laminated bar. The reed R may enter the space between the pole-pieces, or may be edge or end on to the pole-tips. In the form shown in Fig. 2, the pole-pieces P are magnetized by permanent magnets M. The reed is replaced by a suspended member R', the period of oscillation of which can be varied for tuning by varying the current in a coil t on a central projection providing magnetic control. When used as a vibration galvanometer, the current to be measured is sent through the coils C. To avoid disturbance by external fields, the pole-pieces P mav be set parallel to one another and polarized in the same direction with the controlling pole-piece between them. When permanent magnets are used for pclarization, the adjustment of magnetic strength may be effected by magnetic shunts. According to the Provisional Specification, the invention may be applied to the detection of the presence and form of hidden magnetic bodies.
Patent GB-427066-A (GB)
Title: Improvements in or relating to hoods for perambulators, push chairs and the like
IPC: B62B9/14
Filed: 1934-06-18
Abstract: 427,066. Perambulator hoods. THORNLEY, F., 168, Northgate, Darlington. June 18, 1934, No. 18023. [Class 108 (i)] A protective sheath is fitted sideways on to the U-shaped frame member of a perambulator &c. hood. The sheath may be in one piece and constructed of stainless or other metal, chromium plated or otherwise, or may be constructed of non-metallic material such as celluloid, synthetic resin, or artificial silk. The sheath a is of deep U -section and is provided with notches a<1> to take over the stay bolts. In other forms it may be made up of straight sections b, c, d connected by corner pieces e, f which may have considerable overlap to allow the sheath to fit hoods of various sizes. Bolts &c. may be passed through holes drilled in the sheath at the corners and in the hood frame.
Patent GB-972195-A (GB)
Title: Improvement relating to injection moulding
IPC: B29C45/26
Filed: 1961-05-17
Abstract: 972,195. Injection moulding. W. J. STOKVIS' KONINKLYKE FABRIEK VAN METAALWERKEN N.V. May 17, 1961 [May 25, 1960], No. 18028/61. Heading B5A. In a method of injection-moulding an object comprising a plurality of cylindrical hollow parts plastic moulding material, e.g. P.V.C., is distributed throughout the mould from an injection place in or near the intersection point of the centre lines of said parts, or in or near the intersection point of the centre line of one of these parts with the plane of symmetry through the other part. As shown in Fig. 1, a T-shaped fitting 3, 8 is formed in a mould 1, 2 having separate cores 4, 5, 6 in any one of which a sprue channel 7 is provided. Alternatively, any one of the cores may be formed by the nozzle of an injection moulding machine (not shown). Channels 10, 11, 12 between adjacent ends of the cores distribute the moulding material from the end 9 of sprue channel 7. As shown in Fig. 2, the sprue channel 16 may be formed in the mould-half 1 in alignment with a channel provided by semi-cylindrical grooves 14, 15 in adjacent ends of cores 4, 5 through which moulding material enters channels 10, 11, 12. The sprue and partitions formed by the channels are removed when the filling has been taken from the mould.
Patent GB-745559-A (GB)
Title: Wind operated display and advertising devices
IPC: G09F7/22
Filed: 1953-06-30
Abstract: 745,559. Moving signs. WOODWARD, J. S. Sept. 28, 1954 [June 30, 1953], No. 18054/53. Class 3(1) A vertical or inclined panel A is apertured to receive a boom 13 which is pivoted off centre thereon and carries an advertising or display arrangement C. An air vane D having calibrated weights is adjustably mounted on the end of the boom, a slot O being provided for this purpose. The air vane may carry slots to act as a by-pass for controlling the sensitivity of the device, see Fig. 3 (not shown), or the slot O may be of such a size and shape as to serve this purpose. The device may he made from cardboard, paper, wood metal, metal foil or plastic
Patent GB-701463-A (GB)
Title: Improvements in or relating to hay and like rakes
IPC: A01D76/00
Filed: 1951-07-31
Abstract: 701,463. Hay rakes. OGLE, L., OGLE, K. M., and OGLE, W. H. Aug. 27, 1952 [July 31. 1951], No. 18072/51. Class 6 (3) In a rake of the kind in which the teeth or tines L are carried by a pivoted frame B which is pivoted on the landwheel axle O and which is angularly adjustable to raise the tines by releasing pawls A pivoted on the frame B, which then fall into engagement with teeth M of wheels which rotate with the landwheels N, the pawls A rest on stops C on a fixed frame D and are disengaged therefrom to drop into engagement with the teeth M by moving the frame B by a pull on a lever E pivoted to the frame B, and connected by a spring or spring link H with an arm J secured to the frame B. The frame B is held in its normal position by a projection F on the lever E engaging over a rail G extending across the frame D and is held in engagement therewith by the spring or spring link H. Cams P are provided on the frame D to engage with the pawls A to disengage them from the teeth M when the frame B has been raised. The frame B is held in the raised position by a pin S on the arm J which engages under an arm R pivoted on the frame D.
Patent GB-497959-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/10
Filed: 1937-06-30
Abstract: 497,959. Knitting-machines. BENTLEY ENGINEERING CO., Ltd., WAINWRIGHT, C. H., and BUSWELL, G. A. June 30, 1937, No. 18249. [Class 74 (ii)] A circular machine is provided with two feeders 18, 60 movable from normal . plating to reverse plating positions and to a third pair of positions to produce normal plating during reciprocatory knitting. Means are provided for moving the feeders selectively into any of the three pairs of feeding positions, and for adjusting the position of each of the feeders when they are in reverse plating position without affecting its position during normal plating. The invention is described in connection with a superposed cylinder machine in which one feeder 18 is carried by an elbow lever 20 mounted upon an arm 26 which is swung to change the position of the feeder from normal to reverse plating by a bar 32 and lever 34 as described in Specifications 247,334, and 269,230, [both in Class 74 (ii)]. When the feeder 18 has been moved to reverse position, the arm 22 of the lever 20 engages a bar 42 and the lever is turned about its pivot 22 against spring resistance to raise the feeder. Adjustment of the bar 42 determines the amount of the movement of the feeder 18. The feeder 60 is secured to a lever 62 pivoted in a block 66. The block 66 is mounted upon a rod 68 carried by a post 70. Movement of the feeder 60 to reverse plating position is obtained by the engagement of a roller 80 on the lever 62 with a cam 82. Adjustment of the feeder 60 in its reverse plating position is effected by varying the amount or directon of the movement which the cam 82 gives to the 'roller 80. Either the position or direction of movement of the cam 82 is varied, or alternatively the roller 80 with its supporting lever 62 is swung about the yarn issuing end of the feeder 60 when the feeder is in normal plating position. A latch retarder 100 serves to prevent sudden closing of the needle latches and is attached to a lever 102 pivoted on a block 104 fixed to the upper cam box.
Patent GB-1033142-A (GB)
Title: Improvements relating to apparatus for stacking rod-like articles
Inventor: HORTON WALTER
IPC: B65G57/18
Filed: 1962-05-12
Abstract: 1,033,142. Stacking-machines; endless conveyers; rotary conveyers. G.K.N. GROUP SERVICES Ltd. June 19, 1963 [May 12, 1962], No. 18346/62. Heading B8A and B8C. [Also in Division F2] Rod-like articles are formed into a stack 9, Fig. 1, by being fed upwardly by a device 32 through a one-way gate 17 in a platform or support 11. In the form shown, the platform is part of a trolley which has castors 15 and walls 12, 13. Each gate consists of pawls 17, Fig. 3, mounted in an opening 16 in the platform and biased by gravity or by springs. The platform is wheeled to a position over a vertically movable structure 21 carrying the feed devices 32, Fig. 1, and is held in position by pins 28 engaging in bores 30, Fig. 4, on the structure 21. The feed devices each consist of a carrier head 32 having cradle blocks 50 with V-shaped grooves 51, Fig. 5, for orientating the articles, and are pivoted to each end of a beam structure 35 which reciprocates them out of phase and is adapted to " break " if an article jams. Intermittently rotating transfer devices 74, Fig. 5, carry the articles to the feed devices from a belt conveyer 55 receiving articles from V-section shoots 54, Fig. 4. In operation a blank for a bolt is fed under gravity or by a moving member down a conveyer 52 to a shoot 54 from where it proceeds on to parallel belts 56 of the conveyer 55. This carries it into the bevelled mouthed recess 79 of the cylinder 74 where it abuts an axially adjustable stop. A collapsible link 93 then acts to rotate the cylinder 74 which transfers the blank to a sloping platform 73 down which it rolls to rest against the side wall of one of the feed devices. As the latter descends the blank rolls into the groove 51 therein before being carried up through the platform to the stack. When stacks have been formed on the platform this may be uncoupled from the feed devices and wheeled away after lowering of the structure 21. Alternatively, the rear wall 12 of the platform may be pushed forward by air cylinders to slide the stacks on to an adjacent receiving table.
Patent GB-437973-A (GB)
Title: An improved means of sound amplification and projection
IPC: H04R27/04
Filed: 1934-06-21
Abstract: 437,973. Public address systems. SNELL, A. C., 20, Courthope Villas, Wimbledon, London. June 21, 1934, No. 18350. [Class 40 (iv)] In a megaphone set comprising a microphone 1 and loudspeaker 2, 3 mounted in the same casing, in order to avoid noise due to interaction of the two parts they are separated by a vibration-absorbing pad, or a differential microphone of the pressure variable-resistance type is used, or both of these features are adopted. As shown in Fig. 1, the microphone 1 is secured by bolts 10 to a pad 9 clamped between a hood 8 and the rear end of the casing 4 enclosing the loudspeaker 2. The microphone is of the carbon-granule type with a central electrode connected through the loudspeaker 2 and switch 26, Fig. 2, to the midpoint of the battery 25. The switch is operated by a push-button 7 in the handle 6, Fig. 1. As shown in Fig. 3, the microphone comprises front and rear electrodes 16, 18, and a free central electrode 17 connected to a conical diaphragm 12 with corrugated rim 13 held in a rim or radial extension 15 of the front electrode. The diaphragm may form a gas-tight chamber over the electrodes, and this may be filled with a heat-conducting gas. The electrodes may be formed of, or faced with, gold, platinum, a stainless alloy, &c. To avoid packing of the granules on one side of the electrode 17, this is formed with a recess or gap 22, and non- conducting areas 23 are formed in the outer electrodes 16, 18 opposite this gap. In modifications, Figs. 6, 6<a>, (not shown), the outer electrodes are extended or connected by insulating material beyond the edge of the central electrode to provide free passage for the granules and to form a reserve pocket for these, and in Figs. 7, 8 (not shown), the central electrode may have annular or lateral extensions of heat conducting material passing out beyond the granular chamber, and may have corrugations within the chamber to reduce mechanical constraint.
Patent GB-708951-A (GB)
Title: Improvements in and relating to circuits for electric discharge tubes
Inventor: CHAPMAN DONALD FREDERICK
IPC: H05B41/232
Filed: 1951-08-02
Abstract: 708,951. Supply systems for space discharge apparatus. THORN ELECTRICAL INDUSTRIES, Ltd. July 7, 1952 [Aug. 2, 1951], No. 18357/51. Class 38(4) Automatic reduction of filament preheating current and prevention of circulating current should a tube act as a rectifier due to failure of one electrode is provided in a circuit for one or more series connected discharge tubes 10A, 10B each of the kind having two filamentary electrodes 11A, 11B, 12A, 12B, which circuit comprises a first inductance element 17 connected in series with a filament heating transformer primary winding 18 across A.C. supply terminals L, N, and a second inductance element 15 connected in series with a capacitor 13 and the discharge space of the tubes across the said supply terminals, the two inductance elements being electromagnetically coupled and connected together with such direction that discharge current in element 15 induces in element 17 a voltage which opposes the source voltage to reduce the primary winding voltage when the tubes strike. Transformer secondary windings 20, 21, 23, one of which may be auto-connected to the. primary winding, provide the filament heating current, and the ballast, provided by capacitor 13 and inductance element 15, gives the circuit a leading P.F. so as to operate at unity P.F. when working with a lagging circuit.
Patent GB-1118487-A (GB)
Title: Process for red sensitisation of electro-photographic selenium layers
Inventor: HAASE GUENTER
IPC: G03G5/04
Filed: 1967-04-21
Abstract: A layer of selenium in its 6-ring modification is deposited on a glass plate at - 60 DEG  C. and at a pressure of 2 x 10-5 mm. Hg. Without opening the container, the plate is slowly heated to \s420 DEG  C. and a layer of amorphous selenium deposited on the previous layer.  The 6-membered ring allotrope is characterized by the presence of 6-rings of selenium in which the atomic distance within the ring is 3.18<\>rA and between the atoms of the individual rings is 3.67<\>rA.  It may be prepared by chilling selenium vapour to temperatures between - 50 DEG  and - 180 DEG  C.
Patent GB-313619-A (GB)
Title: Method of producing shaped bodies for tools of material difficult to work such as carbides, their alloys, and the like
IPC: C22C1/05
Filed: 1929-06-14
Abstract: 313,619. Krupp Akt.-Ges., F., (Assignees of Patent-Treuhand-Ges. fiir Elektrische Gl³hlampen). June 15, 1928, [Convention date]. Tools.-Shaped bodies for tools are produced from refractory materials such as carbides and their alloys, for example refractory metal carbides and metals such as iron, cobalt, or nickel, by mixing the powdered materials with a binder capable of setting or hardening at ordinary or slightly raised temperatures, working the body mechanically to its final form, and then highly sintering it. The binder may be a solution or suspension of a resin, lac, or gum, or a powdered cement-like material, or an easily fusible metal or metalloid.