baber/WOPTO huggingface dataset:
Patent GB-945729-A (GB)
Title: Improvements in method and container for transplanting
IPC: A01G9/10
Filed: 1962-07-16
Abstract: 945,729. Containers for growing plants. E. ANSALONI, [trading as ANSALONI DEL A DR. EDO ANSALONI]. July 16, 1962 [July 14, 1961], No. 27298/62. Heading A1E. To facilitate transplanting growing plants, the soil 11 containing the root structure of the plant is enclosed by a container 12 around which extend vertically spaced lines of weakening or perforations 16, 17 so that the parts 14, 15 may be removed when the plant is transplanted to allow ready bonding of the soil 11 with the surrounding earth. The container may be formed of thin sheet metal, moulded plastics material or cardboard and the parts 14, 15, 16 of the container joined by means of solder or adhesive, or tack welding. Where the container is made of cardboard a pair of rip cords may extend round the container to aid separation of the parts 14, 15.
Patent GB-239396-A (GB)
Title: An improved tooth brush
IPC: A46B5/04
Filed: 1924-11-15
Abstract: 239,396. Barton, L. G. Nov. 15, 1924. Toothbrushes. - A resilient rubber sheath 1 adapted to fit over a finger of the user, has a base portion 2 formed by thickening the wall of the sheath at one side; the sheath carries brustles of rubber or other material. Reference has been directed by the Comptroller to Specification 9388/12.
Patent GB-434053-A (GB)
Title: Improvements in the production of built-up wood panels or boards
IPC: E04C2/12
Filed: 1934-09-24
Abstract: 434,053. Built-up boards. SLIVECKA, B., 21, Annenska Street, Cesky Tesin, Czecho Slovakia. Sept. 24, 1934, No. 27382. Convention date, Sept. 22, 1933. [Class 145 (ii)] in the manufacture of built - up boards the logs are, before or after steaming or steeping in lye with subsequent drying, cut up into planks substantially in the manner shown in Fig. 11. Those planks cut equidistant from the centres of the logs are secured together with the directions of curvature of their annual rings opposite ; for example, the planks I are arranged to form a composite board as shown in Fig. 16. The centre planks from two logs, or the two halves of one centre plank V are arranged as shown in Fig. 15. The planks may be staggered as in Fig. 17. As shown in Fig. 28, veneer or thin planks may be interposed between the layers for strengthening purposes; the composite board may be faced with veneer or thin boards ; the board may be provided in known manner with drying grooves, various forms of these being illustrated ; various forms of tongues and grooves are illustrated, the boards being glued together.
Patent GB-1434444-A (GB)
Title: Monolithic integrable series stabilization circuit
IPC: G05F1/56
Filed: 1974-06-20
Abstract: 1434444 Automatic voltage control ITT INDUSTRIES Inc 20 June 1974 [26 June 1973] 27383/74 Heading G3R A series transistor voltage regulator circuit produces a stabilized voltage independent of temperature by using as a reference two voltage sources with positive and negative voltage coefficients respectively.  As shown, a main transistor T 1  is controlled by an auxiliary transistor T 2  dependent on the conductivity of transistors T 3 , T 7 , which, together with constant current source transistors Ts, T 6 , form a voltage reference source with a positive temperature coefficient. A voltage divider R 1 , R 2 , the junction point of which provides a control voltage for transistor T 7 , is connected in series with a diode-connected transistor T 8  to form a voltage source with a negative temperature coefficient. The regulator may be constructed as a monolithic integrated circuit, and is suitable for stabilizing voltages of the order of one volt while consuming a leakage current between one and ten ÁA. The circuit is an improvement on that disclosed in Specification 1423054, Fig. 1 (not shown).
Patent GB-603367-A (GB)
Title: Super-regenerative receiver
IPC: H03D11/02
Filed: 1945-10-18
Abstract: 603,367. Valve super-regenerative circuits. HAZELTINE CORPORATION. Oct. 18, 1945, No. 27440. Convention date, Nov. 30, 1944. [Class 40 (v)] In a super-regenerative receiver, additional damping is provided across the oscillatory circuit during the quenched period by means in the grid-cathode circuit, controlled by the quench voltage, which cause grid current to flow. Preferably, the additional damping is made effective at the beginning of the period and removed before its termination. Quench frequency oscillator 30, Fig. 1, supplies, over rectifier 24, positive half sine waves across resistor 26 which cause the super-regenerative valve 12 to pass grid current and damp the tuned circuit 10. A circuit 17, 18 tuned to the quench frequency, causes the anode potential to fall during the quenched period, and by adjustment of the capacitor 18 the damping may be removed before the end of each half sine wave. In a modification, Figs. 3 and 4 (not shown), the quench frequency voltage is injected into the anode circuit, the valve 12 being provided with a cathode impedance and the grid returned to a positive potential. In a further modification, Fig. 5, a component, such as the quench frequency component, of the demodulated signal output from the diode detector 40 is fed through amplifiers 61, 63 to rectifier 64, the D.C. output being applied to vary the impedance of valve 80, shunting the valve 12. If the sensitivity increases, the output from rectifier 64 decreases the impedance of valve 80, thus reducing the amplitude of the quench frequency applied to valve 12, the common cathode tuned circuit 74, 75 ensuring that the additional damping is maintained since all the quench current passes through this circuit.
Patent GB-902884-A (GB)
Title: Improvements relating to the testing of water by the use of reagents in tablet form
Inventor: PALIN ARTHUR THOMAS
IPC: G01N31/22
Filed: 1959-08-12
Abstract: Tablets for the testing of water to evaluate impurity therein comprise a standard reagent and an indicator compressed together in the same tablet.  The standard reagent is a chemical able, under the conditions of test, to react quantitatively with the substance to be determined, and the indicator is one able, by change of colour, to denote completion of the quantitative reaction.  Standard reagent indicator couples specified are (1) a polyaminocarboxylic acid, e.g. EDTA, or a salt thereof, and a metal indicator, e.g. Eriochrome Black T or Murexide (ammonium purpurate) which couple may be used for determining the sulphate content or the hardness of water, (2) sulphamic acid or a soluble bisulphate, e.g. KHSO4, and a pH indicator, e.g. methyl orange, methyl red, thymol blue, or phenolphthalein, which couple may be used for determining the alkalinity of water, (3) a reducing agent, e.g. ferrous ammonium sulphate, and an oxidation-reduction indicator, e.g. methylene blue, which couple may be used for determining the dissolved oxygen content of water, (4) an oxidizing agent, e.g. KMnO4, and an oxidationreduction indicator, (5) a soluble silver salt, e.g. AgNO3, and a soluble chromate, which couple may be used for determining the chloride content of water, (6) Na2CO3 or K2CO3 and a pH indicator, e.g. thymol blue or phenolphthalein, which couple may be used for determining the free carbon dioxide content of water, (7) a soluble iodide-iodate mixture, e.g. Kl with KlO3, and an iodine indicator, e.g. starch, which couple may be used for determining the sulphite content of water, and (8) a soluble permanganate, e.g. KMnO4, used in the presence of a soluble iodide and an acidifying agent, for example, a soluble bisulphate, and an iodine indicator, e.g. starch, which combination may be used for determining the content of organic matter in water.  The tablets may contain buffering and masking agents, examples of which are given where applicable, and also fillers, e.g. NaCl, KHCO3, or sucrose, disintegrants, e.g. starch, and lubricants, e.g. talcum or boric acid.  The examples give a number of specific tablet compositions.  In determining an impurity, the tablet is added to a determined volume of water.  If more than one tablet is necessary, the tablets are added in succession until a colour change defining the end-point of reaction between the standard reagent and the substance being determined is produced. Specification 686,817 is referred to.
Patent GB-407426-A (GB)
Title: Improvements in sheet metal drums, kegs, or the like containers
IPC: B65D45/24
Filed: 1932-10-05
Abstract: 407,426. Hook fastenings. WAGSTAFF, H., 21, Bridgewater Street, Liverpool. Oct. 5, 1932, No. 27616. [Class 44.] A means for securing a lid to a container of the kind in which the rim of the lid is engaged by a hook pivotally carried by a toggle lever pivoted to lugs on a base fixed to the wall of the container comprises one or more fastenings each consisting of a sole plate 8 carrying pairs of lugs 8<a>, 8<b>, a lever 6 of channel-section pivoted at 7 and a hooked wire 4 engaged by its ends in the lever and sealed by a wire &c.
Patent GB-771950-A (GB)
Title: Improvements in or relating to internal shoe-drum brakes
IPC: F16D51/52
Filed: 1955-09-28
Abstract: 771,950. Internal shoe-drum brakes. WAGNER ELECTRIC CORPORATION. Sept. 28, 1955 [Oct. 6, 1954], No. 27619/55. Class 103 (1). In an internal shoe-drum brake having shoes 15, 16 applied by a fluid-pressure cylinder 35 with an adjustable device 25, 26 located between one pair of ends of the shoes, the diametrically opposite pair of ends are arranged to abut an anchor block 38 rotatable on a pin 43 fastened to the back-plate 12, the block 38 being provided with a flat surface 39 on one side for co-operation with the end of one of said brake shoes and an arcuate surface 40 on the opposite side for co-operation with the end of the other of said brake shoes. This construction is stated to prevent any locking or wedging of the brake shoes and brake drum as may take place with known constructions having a fixed anchor member.
Patent GB-340327-A (GB)
Title: Improved means for damping rotational or oscillatory movement
IPC: C08F110/02
Filed: 1929-09-11
Abstract: 340,327. Gyroscopic apparatus. REID & SIGRIST, Ltd. and MOSS, D. G. K., Canbury Park Road, Kingston-on-Thames. Sept. 11, 1929, No. 27681. [Class 97 (iii).] Air damping-means for gyroscopes, or electrical or like delicate measuring instruments, are connected to the body to be damped so as to operate at a much higher speed than that of the body. Suction driving-means for an aircraft gyroscope are also shown. The damping-means comprise vanes or propellers rotatable in a casing containing air, or as shown in Fig. 2 there are air cylinders 35 having holes 36 and co-operating with pistons 32 driven by a crank shaft 21 connected by a toothed pinion 25 with a much larger toothed wheel or sector 20 connected to the gimbal ring 19 of the gyroscope. Two or more shafts 21 with their vanes or cranks may be journalled round the wheel 20. Friction gearing may replace the toothed form, when the wheels may be friction faced and the pinion may be adjustably spring or screw pressed into engagement. The gyroscope is driven whether the aircraft is stationary or not, independently or conjointly from three suction sources comprising a venturi 4, Fig. 3, in the exhaust pipe 5 of the propelling motor 6, a connection 7 to the induction pipe 8, and a venturi 9 in the slip stream of the main propeller. The gyroscope is completely enclosed in a casing 1 having a driving air inlet nozzle 16 and being in communication with a valve box 11 communicating through suction controlling valves 13, 14, 15 with the sources of suction. The valves may be manually controlled or may be automatic by being spring-pressed whereby increase in suction decreases the valve opening. By these means a decrease in engine suction will be counteracted by an increased exhaust suction and the gyroscope will maintain a constant speed. According to the Provisional Specification the damping-means are applicable generally for damping rotational or oscillatory movement.
Patent GB-954797-A (GB)
Title: Improvements in methods of removing oil from the surface of the sea or inland waters
Inventor: GRUNWALD GEORG FRIEDRICH
IPC: C02F1/68
Filed: 1960-08-11
Abstract: Oil on the surface of seas or inland waters is removed with a halogenated hydrocarbon, a bleaching earth or a polyphenol or mixtures thereof which absorb the oil and the agglomerate formed then sinks.  The effect may be improved by adding to the treatment material cement, wetting agents and known agglomerants such as iron, manganese cobalt or aluminium sulphate, cerium chloride, barites and gypsum.
Patent GB-862109-A (GB)
Title: Food process
IPC: A23B4/023
Filed: 1958-08-29
Abstract: Cured meats contain a non-toxic, water-soluble cyclohexylsulphamate, e.g. 0.02% of the cyclohexylsulphamate. Examples are concerned with boiling hams which have been pumped to 20% with, and then immersed for 7 days in, a brine pickle containing sodium nitrite, sodium nitrate, pentasodium triphosphate, and sodium cyclohexyl sulphamate or calcium cyclohexylsulphamate.
Patent GB-221114-A (GB)
Title: Improved furnace-charging device for horizontal coal-carbonizing settings and the like
IPC: C10B31/02
Filed: 1923-11-07
Abstract: 221,114. Croft, C. M., and Buxton, R. H. Nov. 7, 1923. Charging and discharging.-Relates to travelling receivers for charging the internal furnaces of retort settings with hot coke from the retorts. The receiver e, adapted to hold the contents of one or more retorts, is pivotally mounted on the travelling truck a at g, preferably at about the middle of its height and to one side, its upper and lower portions being curved or offset towards the same side. In the filling position, in which the receiver is either vertical, as shown in Fig. 3, or tilted at its upper end towards the retort, the discharge opening i is closed by the fixed curved plate j. For discharging, the receiver is tilted in the opposite direction, Fig. 5, thus uncovering the outlet i. delivery to the furnace mouth being facilitated by the apron j<1>. The frame carrying the receiver may, as shown, be movable transversely of the truck a. Tilting is effected by means of a vertical screw spindle l, driven by an electric motor h, and engaging a nut m connected by links n to a girdle o surrounding the receiver at about half the level of the axis g. Discharge from the receiver is facilitated by toothed or spiked rollers, or by an internal flap v, Fig. 5, operated by a push-rod, or by a similar flap engaged by a fixed stop as the receiver is tilted.
Patent GB-416196-A (GB)
Title: Improvement in price tags
IPC: G09F3/12
Filed: 1933-10-11
Abstract: 416,196. Labels; seals. KIMBALL CO., A., 307, West Broadway, New York, U.S.A.-(Assignees of Laencher, F. W.; Elmhurst, New York, U.S.A.) Oct. 11, 1933, No. 28065. Convention date, Nov. 18, 1932. [Classes 73 and 146 (ii).] A price tag is folded to form two flaps 1, 2, one of which carries e fastening device 3 such as a wire staple adapted to pass through the article and an aperture 4 in flap 2, which flap is provided with a tab 5 adapted to be sealed over the fastening 3. A lock seal device for this purpose is shown in Fig. 4, and has interengagable members 7, 8, mounted respectively on the tab 5 and flap 2, and adapted to be pressed together so that prongs 16 irremovably engage the bead 12. The flange 11 may be weakened as at 17 so as to break if tampered with, and the tab 5 may be perforated as at 19 to facilitate authorized detachment.
Patent GB-884273-A (GB)
Title: An improvement relating to metal frameworks for buildings and furniture
IPC: E04B1/58
Filed: 1958-09-02
Abstract: 884,273. Joints for metal members. JOHNSON, E. R. W. June 24, 1959 [Sept. 2, 1958], No. 28086/58. Class 20(2) [Also in Group XIV] A metal framework for buildings &c. consists of rectangular section hollow members B connected by mating angle pieces A secured by bolts, screws, keys or wedges.
Patent GB-340018-A (GB)
Title: Improvements in or relating to hack saw machines
IPC: B23D49/00
Filed: 1929-09-17
Abstract: 340,018. Hack-saw machines. FLETCHER, C., 47, Hill Top Avenue, Cheadle Hulme, Cheshire. Sept. 17, 1929, Neo. 28134. [Class 145 (ii).] In a hack-saw machine, the rectangular plate saw f<1> is mounted without being put in tension by bolting it on three sides between the halves of a divided reciprocating frame f driven from a crankshaft d by a connecting-rod h, whilst the frame is supported and guided by an overhanging arm e pivoted at h<1> to the standard c. The saw frame is fed downwardly by rods g connected to a nut n on a screw n<1> driven through spur and bevel gearing from a shaft p, operated either by ratchet and pawl gear of adjustable throw from the crankshaft d, or in the reverse direction at a higher speed by a chain q according to the position of the main driving clutch. At the end of its downward travel the saw frame is raised by the action of a lug u<4> on the arm e which engages a stop u<5> on a vertical rod u<3> and so rocks the clutch lever t by means of a cam stud u engaging a spring stud t<2> on the clutch lever. In order to relieve the cutting pressure at each rearward stroke of the saw, the arm e is connected to the rods g by eccentric pivots e<2>. In starting the machine a handle v<9> is depressed, moving the belt fork v against a spring v<4> until a catch piece v<5> on the rod is engaged by a catch v<10>. At the bottom of the cut, a lever v<12> is rocked by the movement of the clutch lever t so as to dis. engage the catch v<10> from the catch piece v<5>, and to engage it by the hooked end of the lever v<12>. When the saw frame reaches the top of its lift the stop u<4> raises the rod u<3> and the clutch is returned to its original position, whilst the lever v<12> is disengaged from the catch piece v<5> and the spring v<4> returns the belt fork to the loose pulley. The saw is lubricated by means of a pump r<3> driven from the main shaft r. The arm e may be supported on a slide instead of being pivoted, and the saw may be arranged to reciprocate vertically.
Patent GB-1019004-A (GB)
Title: Safety device for reactors,chemical processes and the like with automatic control
IPC: G05B9/02
Filed: 1962-07-23
Abstract: 1,019,004. Protective arrangements. SIEMENS & HALSKE A.G. July 23, 1962 [July 24, 1961], No.28171/62. Heading H2K. A device for testing a monitoring apparatus in which, for example, two of three measurement channels must carry excessively high signals before a warning is operated comprises means for applying test pulses in succession to the monitoring apparatus in each channel and for comparing these pulses with those that have been passed through the monitoring apparatus. In the monitoring apparatus three measurement channels K1-K3 feed threshold units G1-G3. Unit A gives an output if two or more threshold units give outputs, and controls relay AV which operates alarm AG. The testing device comprises counter ABC which energizes first one, then two, and then three of its output leads and is fed by generator IG. The test pulses from the counter pass direct to comparator JV and via gates WN1-WN3 to the threshold units. In the event of no fault in the monitor, the first test pulse is blocked by unit A, and the second and third test pulse combinations cause unit A to pulse, the latter being too short to operate alarm AG. Comparator JV gives no output for these conditions, but under any other conditions it operates alarm IS. The current state of counter ABC then indicates which channel is faulty. A further counter a, b, c, stepped at each cycle of A, B, C, controls the gates WN of other groups of measurement channels. An alarm U operates if the counters stop.
Patent GB-661460-A (GB)
Title: Improvements in or relating to tool holders
IPC: B23B27/16
Filed: 1949-11-04
Abstract: 661,460. Lathe &c. tool-holders. ENSTONE, A. C. Nov. 4, 1949, No. 28289/49. Class 83 (iii). [Also in Group XXIII] A non-rotating tool-holder for lathes and other machine-tools comprises a body 1 having an open recess 1a with parallel plane faces separating an upper resilient clamping portion 1d and a lower rigid supporting portion 1e, between which a tool or adaptor therefor can be clamped in angularly-adjusted position by a screw 2 or the like passing through the tool or adaptor. The slot la is narrowed to a slit 1b which extends along part of the length of the body before being terminated by an end-surface Ic inclined to the axis of the body. The screw 2 engages threads in the member 1e to clamp the adaptor 4 and passes either through a hole in the adaptor or, in the event of it being required to remove the adaptor without removing the screw, through a recess extending to the end thereof. The tool 3, which can be replaced by other tools housed in a recess If in the body 1, is clamped in an inclined or axial position in the adaptor by a screw 5. An extension 4b of the tool-slot 4a may be provided for purposes of ejecting the tool. The tool 7, Fig. 4, or a bar is positioned laterally of the adaptor 6 to facilitate boring operations or gauging by means of a dial. In a modification, the resilient member 1d may be formed separately and built on to the holder 1 by means of screws.
Patent GB-756925-A (GB)
Title: Preparation of halogenated organic compounds
IPC: C07C17/093
Filed: 1952-11-10
Abstract: The invention comprises certain polyhalogen methanes containing iodine and fluorine, and a method of obtaining them which consists in heating the silver salt of a fluoroacetic acid, which also contains one of the other two halogens, with chlorine, bromine, or iodine, whereby the added halogen substitutes the position in which the carboxylic group was present, and CO2 is evolved to give a product containing F, I and either Cl or Br.  In examples, chlorofluoroiodomethane and bromofluoroiodomethane are obtained by the action of iodine on silver chloro- or bromo-fluoroacetate respectively.
Patent GB-489094-A (GB)
Title: Improvements in or relating to superheterodyne wireless receivers
IPC: G01R25/00
Filed: 1936-10-19
Abstract: 489,094. Frequency measurements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 19, 1936, No. 28373. Convention date, Oct. 17, 1935. [Class 37] [Also in Groups XL and XXXV] A circuit arrangement for deriving a D.C. voltage which is a measure of the departure from its true value of the input frequency comprises a pair of reactively coupled circuits each tuned to the true carrier frequency, and means responsive to a phase angle change between the potentials across the two circuits when the input frequency departs from the resonance frequency of the two circuits. The invention rests on the fact that the potentials across two coupled circuits tuned to a given frequency differ in phase by 90 when that frequency is applied thereto, but this phase relation changes with departure of input frequency from its true value. Fig. 4 shows a superheterodyne receiver in which the I.F. output is applied to circuit 10<1> tuned to the I.F. and coupled to a circuit 13<1> also tuned to the LF., the high potential end of 10<1> being connected to the mid-point of the secondary inductance 141, 151. The phase-opposed potentials across 14<1> and 15<1> are applied to diodes 17<1>, 181 the load-resistances 19<1>, 20<1> of which are connected in opposing sense. The resultant voltage across the two resistances is applied to vary the grid bias of a valve 47 which acts as a thermionic reactance by virtue of network 53, 52 across the anode-cathode space, the common point being connected to the control grid. Specifications 332,834, [Class 40 (v)], and 474,682, [Group XL], are referred to. The Specification as open to inspection under Sect. 91 describes the application of a similar system to indication of departure of a transmitter frequency from the desired frequency. In Fig. 6 (Cancelled), the output from transmitting and monitoring oscillators 60 is rectified and passed through a filter 62 tuned to the beat frequency and thence to a detector 63, 63<1>, 65, 68, the rectified output of which operates an indicating instrument 70 which may be calibrated to indicate fre-. quency off-tune. This subject-matter does not appear in the Specification as accepted.