baber/WOPTO huggingface dataset:
Patent GB-188206-A (GB)
Title: Improvements in screw propellers and the like
IPC: B63H1/12
Filed: 1921-11-08
Abstract: 188,206. Griffin, P. J. Nov. 8, 1921. Screw propellers.-A screw propeller comprises main blades radiating from a boss and carrying auxiliary blades of similar form. Blades 11 of double convex section are attached to a boss 7 and have projections 17 which support auxiliary blades 13, 15 of uniformly thick section. The auxiliary blades are not carried by hubs but opposite blades may be linked by a plate 23. The projections 17 are attached to bands 19 shrunk on and pinned to the blades 11. In end view corresponding blades are staggered and slightly overlap, and the auxiliary blades are slightly longer than the main blades.
Patent GB-698269-A (GB)
Title: Improvements in or relating to machines suitable for use in treating flexible sheet material
IPC: C14B1/10
Filed: 1950-12-06
Abstract: 698,269. Leather making. BRITISH UNITED SHOE MACHINERY CO., Ltd., (United Shoe Machinery Corporation). Dec. 5, 1951. [Dec. 6, 1950] No. 29818/50. Class 76. A leather - working machine comprises an elongated horizontal member, a circular apron draped over said elongated member for supporting a piece of hide or the like, and means for rotating said apron so that successive portions of said apron and hide pass over the elongated member and the entire hide is presented for treatment by a suitable tool on one side of the elongated member. The apron may be dispensed with and alternative means provided for rotating work piece. As shown in Fig. 1 a machine suitable for unhairing hides comprises an elongated member 16 which is substantially cylindrical in cross section at its ends and somewhat pear-shaped at its centre, a flexible rubberised apron 200 having a peripheral chain 202 driven by chain wheels 160 (only one member of pair shown) and 56 and supported by two conical rotatable members 30 and 32, and an unhairing tool 228 which may be brought from a position Y, Fig. 2, to an operative position in which its operative surface is parallel to adjacent portions of the surfaces of the conical members. In a second embodiment of the invention for fleshing hides (not shown), the elongated member is of tubular form and a pair of helically bladed tools rotatable in opposite directions are provided which in operative position are arranged parallel to the elongated member. The operation of the second embodiment of the invention is similar to that of the first except that no conical or other additional backing up-members are provided as the elongated member serves not only as a supporting device for the apron and hide but also as a backing-up member to facilitate operation of the tools, and the tools remain stationary and the apron and hide is moved into and out of operative relation to the tools.
Patent GB-471292-A (GB)
Title: Improvements in or relating to means for modifying the charge of internal combustionengines
IPC: F02M25/06
Filed: 1936-11-04
Abstract: 471,292. Auxiliary - air admission. HULME, T. Nov. 4, 1936, No. 29962. [Class 7(ii)] Auxiliary air is drawn into the induction manifold 6 by a conduit 3, connected to the oil filling spout of the crank-case by a union 4 located above the gauze filter 5, which prevents liquid lubricant passing. The supply is controlled by a manually-operated valve 8. In a heavy-oil engine the auxiliary air is drawn into the induction pipe of the charging pump
Patent GB-958672-A (GB)
Title: Clinching apparatus
IPC: B21D39/02
Filed: 1960-08-31
Abstract: 958,672. Seaming. BRITISH FEDERAL WELDER & MACHINE CO. Ltd., and T. F. TRIBE. Aug. 16, 1961 [Aug. 31, 1960], No. 30014/60. Heading B3J. Clinching apparatus of the type in which the panels lie upon a bed or cradle and the preforming operation and the clinching operation are performed in sequence by separate pre. forming and clinching members is characterized in that the pre-form member is connected to the clinching member by a toggle linkage so that during the first part of the downward movement of the clinching member the pre-form member is advanced to bend over the upstanding marginal flange and it is then withdrawn, whereupon, during the second part of the downward movement of the clinching member, the bent-over flange is clinched while the pre-form member remains withdrawn from the flange. A pre-forming member 21 pivoted at 23 to the machine frame is connected by a pivoted link 25 to a beam 15 connected by parallel links 12 to a pillar 11. As the beam 15 is lowered by the rod 17 of an hydraulic jack the member 21 is moved in to bend a flange 8 of an outer panel 7 over the margin 10 of an inner panel 9. On continued downward movement of the beam 17 the member 21 retracts and a clinching member 20 on the beam 15 presses on and clinches the bent-over flange. Specifications 928,229 958,671, 958,673 and 958,675 are referred to.
Patent GB-447960-A (GB)
Title: Improvements in means for elevating and training machine guns and similar fire-arms
IPC: F41A27/06
Filed: 1935-10-31
Abstract: 447,960. Machine guns. NYKANEN, T., Pori, Finland. Oct. 31, 1935, No. 30107. Convention date, Oct. 31, 1934. [Classes 92 (i) and 92 (ii)] The hand grips 11, 12 of the usual handleblock at the rear of a machine gun are mounted to revolve about their own axes and co-operate with a fixed base 3, the one 11 for elevating and the other 12 for training the gun. The gun is mounted to move on horizontal and vertical pivots in the forward part of the base 3, and the grip 11 is in the form of a nut engaging a screw 19 hinged to a member 21 sliding in an arcuate guide concentric with the training pivot. The handle 12 is feathered to a spindle 25 carrying at its lower end a pinion 23 engaging a fixed arcuate rack 4 on the base 3. The grips can be locked in adjusted position by sliding catches 30 engaging serrations 29 on the grips. The rack-and-pinion may be replaced by a friction gear. The parts are so arranged that the grips and their gears may be transposed.
Patent GB-1512803-A (GB)
Title: Circuit arrangement for transmitting and representing an analogue signal with a television signal
IPC: H04N5/445
Filed: 1975-07-17
Abstract: 1512803 Television SIEMENS AG 17 July 1975 [30 July 1974] 30118/75 Heading H4F One or more analogue signals e.g. measurement signals, are reproduced simultaneously as vertical lines lying parallel to one another in a television image, the length of each line representing the analogue signal value. A line pulse transmitter 7, synchronized by the line sync pulses of the television signal at input 1, generates short line pulses at a particular time in each line period for each analogue signal to be displayed; in the embodiment shown four such sets of line pulses are generated and fed to AND-gates 12-15 so that four analogue signals U 1 -U 4  are displayed. These analogue signals are fed via comparators 16-19, where they are compared with a vertical sawtooth waveform from generator 6, to the AND-gates 12-15. The resulting outputs of these gates are combined in OR-gate 20 and then mixed 5 with the television signal and also with the output from a symbol generator 51 which enables alphanumeric symbols and auxiliary lines to be displayed. The synthetic signal at input 53 to mixer-stage 5 blacks out the television signal at input 52 and appears white in the display. The analogue signals U 1 -U 4  may be recovered from the resulting composite signal by means of a threshold value device 24 (Fig. 9, not shown), a pulse generator (28) similar to generator 7 of Fig. 1, integrators (37-40) and accumulators (41-44). The television signal may comprise an X-ray or ultra-sonic picture and the analogue signals pulse frequency, breath frequency, blood pressure or other physiological measured values.
Patent GB-1521521-A (GB)
Title: Control circuits for high-frequency magnetic rotating fields
IPC: G11C11/14
Filed: 1975-07-18
Abstract: 1521521 Magnetic storage apparatus SIEMENS AG 18 July 1975 [22 July 1974] 30196/75 Heading H3B To produce a rotating magnetic field for propagating magnetic bubble domains, a pulse train is applied to each of two orthogonal drive coils of which only one coil L, and its associated control circuitry 3 is shown, one pulse train being phase shifted by 90 degrees with respect to the other and each coil being tuned to resonance by a shunt capacitor C x . A pulse from an adjustable D.C. voltage source 7 is applied to a drive coil each time a transistor switch T 7  is closed, the pulse path including a timing RC circuit 5. Transistor switch T 7  is operated by pulses from a switch S2, which responds to operate pulses applied over a line X from a programmer 2. The circuit includes a normally open switch S, which is operated by start and stop pulses in a further line X<SP>1</SP>. A single start pulse of the same duration as an operating pulse is used, while for stopping the field a stop pulse of prolonged duration is applied. To provide immediate start and stop properties a further switch S 3  is closed whenever a switch S 1  or S2 is opened, the further switch connecting a bias potential 12 of the polarity opposite to that of adjustable D.C. sources 10, 11 to transistor T 7  to rapidly dissipate charge carriers from the base-emitter path during the pulse intervals. A pulse spike train of four times the operating pulse frequency is applied from a timing source I to energize the programmer. Details are given of a transistor circuit which performs the combined functions of switches S 1 , S2 and S 3  (not shown). The other drive coil and its associated circuitry is connected to the programmer Y and Y' lines. A counter may limit the number of timing pulses.
Patent GB-978497-A (GB)
Title: Production of cyclododecanone oxime and its hydrochloride
Inventor: METZGER HORST
Filed: 1963-07-31
Abstract: Cyclododecanone oxime hydrochloride is made by hydrogenating 2-chlorocyclododecanone-(1)-oxime or a corresponding compound containing one or two olefinic double linkages in the presence of palladium or platinum as a catalyst. The catalyst may be colloidally dispersed or deposited on inert carriers, such as aluminium oxide, active carbon, barium sulphate, calcium sulphate or silicates. Between 0.01 and 5% by weight of platinum or palladium may be used with reference to the starting material. The reaction temperature is preferably between 0 DEG  and 130 DEG C. and pressures up to 500 atm. may be used. Inert solvents such as alcohols, ethers, carboxylic acids, esters or hydrocarbons. The process may be batchwise or continuous.  On completion of the reaction, the catalyst is filtered off, the solvent is wholly or partly evaporated until the cyclododecanone oxime hydrochloride crystallizes out. The free oxime may be obtained by hydrolysing the hydrochloride with water. In another embodiment, a solvent is used which is immiscible or only slightly miscible with strong acids and the oxime hydrochloride is separated by extraction with such an acid, e.g., 85% phosphoric acid or 80 to 100% sulphuric acid. The starting materials may be made by reaction of cyclododecatriene-(1, 5, 9), cyclododecadiene-1, 5 and/or cyclododecene with nitrosyl chloride in the presence of hydrogen chloride at between -50 DEG C. and +50 DEG C. forming 2-chloro-cyclododecadiene-5, 9- -one-1-oxime, 2 chloro-cyclododecene -5- one -1- oxime and/or 2-chlorocyclododecanone -1- oxime respectively. Instead of nitrosyl chloride, nitrogen monoxide and chlorine, dinitrogen trioxide and hydrogen chloride or nitrosylsulphuric acid and hydrogen chloride may be used. Inert solvents such as chlorohydrocarbons, or aliphatic, cyclo-aliphatic or aromatic hydrocarbon may be used. The a -choroximes need not be isolated but the hydrogen chloride may be expelled by an inert gas before use in the preparation of the cyclododecanone oxime hydrochloride. Detailed examples are given. Specifications 873,257 and 947,396 are referred to.
Patent GB-1048541-A (GB)
Title: Improvements in or relating to electro-acoustical transducing systems
IPC: G11B5/00
Filed: 1964-07-31
Abstract: 1,048,541. Radio receiving apparatus; transducers. S. G. BROWN Ltd., and V. H. A. DIEDERICHS. Aug. 10, 1965 [July 31, 1964], No. 30355/64. Headings H3Q and H4J. A radio receiver is arranged to reproduce through a gramophone by means of an electromechanical transducer coupling to the stylus, and which is connected to the radio receiver by means of a plug. The transducer comprises an outer casing 20 having a flat base for resting, e.g. on the turn-table surface, to which is attached a vibrating ferro-magnetic armature 23 having a portion 24 of thinner section and which can be attracted towards polepieces 25, secured on permanent magnet 26. Surrounding polepieces 25 are windings 27 which are connected to the radio receiver by a plug lead. The free end of armature 23 has an upwardly extending portion 28 with a recess 29 in its top surface, in which the gramophone stylus rests, extending portion 28 lying within an aperture 30 in the outer casing for this purpose.
Patent GB-444601-A (GB)
Title: Improvements connected with casement windows
IPC: E06B7/16
Filed: 1934-10-24
Abstract: 444,601. Casement window frames. GIBBON & SONS, Ltd., Cryws Works, and MORGAN, E., 26, Florentia Street, both in Cardiff. Oct. 24, 1934, No. 30430. [Class 20 (iii)] A casement sash is rabbeted at its edge and the outer flange 12 of the-rabbet is set back from the face of the frame in a rabbet 11. The hinge leaves are made L-shape and secured to the inner meeting edge-faces of sash and frame. Weather grooves 8, 14, 15, 19'are provided on the sash and frame as shown.
Patent GB-505040-A (GB)
Title: Improvements in cartridge belts for automatic firearms
IPC: F42B39/08
Filed: 1937-11-06
Abstract: 505,040. Making link cartridge-belts. BIRMINGHAM SMALL ARMS CO., Ltd., SHEPHERD, R. V., and FAULKNER, H. A. Nov. 6, 1937, No. 30460. [Class 83 (ii)] [Also in Group XXI] A metal-link cartridgebelt for automatic firearms has each link made from a sheet blank of aluminium alloy, the ends of the blank being mechanically interengaged. The blank 1, Fig. 1, with extension 2 has a number of longitudinal stiffening ribs 4 formed on the part 2 and a transverse slot 3 cut in the part 1, a depression 6, Fig. 3, being formed at one side of the slot 3, and the end of the part 2 being offset at 5. Slits in continuation of the sides of the part, 2 are then cut in the part 1 and the extension 2 is then doubled over parallel to the part 1, Fig. 5. The end 5 is passed through the slot 3, the portions 8, Fig. 3, at the ends of the slot 3 bent to form hingelugs 9, Fig. 7, and the part 2 is pressed into contact with the part 1 to form a hinge-lug 7. The blank is then curved to the shape shown on Fig. 9, the part 5 being pressed into the depression 6 and internal and external ribs 10, 11 formed as necessary to position the cartridge. The hinge-lugs 9 arc then completed, as in Fig. 10.
Patent GB-1010304-A (GB)
Title: Transistor divider or counter circuits
IPC: H03K5/00
Filed: 1962-08-09
Abstract: 1,010,304. Transistor pulse-frequency-dividing circuits. WESTERN ELECTRIC CO. Inc. Aug. 9, 1962 [Aug. 18, 1961], No. 30514/62. Heading H3T. In a transistor blocking-oscillator pulse frequency divider, the recovery time of the circuit after its being triggered by an incoming pulse, and hence the division ratio for a predetermined pulse repetition frequency, is determined by a dissipative network connected to a secondary winding of the transformer providing the regenerative coupling between the collector and base electrodes of the transistor. In the circuit shown, the energy stored in the core of the feed-back transformer is dissipated in a network comprising diode 31, capacitor 32 and resistor 33. Feed-back to the base electrode is effected via a separate secondary winding and resistors 25, 26 the junction of which is connected to the collector of the transistor via diode 27 to prevent the transistor saturating. Conduction of the transistor is initiated by the application of positive-going pulses to the " Input " terminal and terminated by the application of subsequent negative-going pulses to the "Off" terminal. The application of a further pulse to the " Input " terminal will not initiate further conduction until a predetermined delay, determined by the dissipative network 31, 32, 33 has elapsed.
Patent GB-960548-A (GB)
Title: Process and device for determining the proportion of simultaneously emitted neutrons
Inventor: GEY ALBERT
IPC: G01T3/00
Filed: 1962-08-09
Abstract: 960,548. Detecting neutrons. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 9, 1962 (Aug. 11, 1961], No. 30539/62. Heading G1A. [Also in Division G6] Apparatus for determining the proportion of prompt neutrons emitted by a neutron source comprises a detector coupled to two counting circuits, the first counting circuit having negligible dead time and the second counting circuit having a dead time of the same order as the time delay between the appearance of a free neutron and its detection by the detector. The counts obtained from the two counters can be used to calculate the proportion of prompt neutrons emitted, and the apparatus can be used for testing a sample of plutonium by measuring the number of neutrons produced by spontaneous fission as distinct from neutrons produced by (alpha, n) reactions in impurities. In the Figure the detector 1 comprises six proportional boron trifluoride counters immersed in a paraffin moderator, and its output passes through unit 2 to two lines leading to counters 3 and 5. The first line has negligible dead time, e.g. about 10<-5> seconds, whilst the second line includes a device 4 which introduces a dead time of about 10<-3> seconds; the device 4 may be a monostable multivibrator having an adjustable time constant.
Patent GB-868402-A (GB)
Title: Apparatus for bending glass sheets
IPC: C03B23/027
Filed: 1957-09-20
Abstract: 868,402. Glass bending moulds. PITTSBURGH PLATE GLASS CO. Sept. 20, 1957 [Oct. 3, 1956], No. 30601/59. Addition to 768,982. Class 56. A glass bending mould M of the skeleton type shaping surface has a heat absorbing member positioned to underlie a glass sheet on the mould, the heat absorbing member 120 comprising a metallic screen 122 adjacent the glass sheet and supported on a plate 124. The screen 122 extends beyond plate 124 so as to graduate the absorption of heat from edge 24 to edge 22 of the mould section 21. In the embodiment described, the mould initially supports the unbent sheets in a flat horizontal position and is subsequently tilted during the bending operation. The heating arrangements include coils 84.
Patent GB-1278154-A (GB)
Title: Improvements in or relating to counter systems
IPC: H03K21/40
Filed: 1970-06-24
Abstract: 1278154 Counters SIEMENS AG 24 June 1970 [25 June 1969] 30618/70 Heading G4A A binary counter R contains a multi-bit number and register P contains a corresponding parity bit wherein prior to each step of the counter the number passes to a test circuit DP which can supply a signal modifying the parity bit if this is due to change. Then the number is modified by the step and finally the modified number and the parity bit (modified or unmodified) are passed to a parity circuit PP for checking. The steps may be made subtractive using a modified test circuit and the counter used as an operand register for a digital computer. The counter may be a cascade counter.
Patent GB-252080-A (GB)
Title: Improvements in oil gas generators
IPC: F02M31/16
Filed: 1924-12-19
Abstract: 252,080. Zwicky, J. Dec. 19, 1924. Spray and pulverulent fuel burners; liquid-fuel supply; vaporizing - apparatus.-Apparatus for the production of oil gas by the partial combustion of liquid or solid fuel in air according to Specification 217,613. [Class 55 (ii), Gas manufacture &c.], comprises a combustion chamber, means for supplying fuel and air to a burner in said chamber and other means actuated by the air supply for varying automatically the supply of fuel. The chamber comprises a metal cylinder with refractory lining 2 and gas outlet 3. One end is closed by a metal door 4 covered by a conical refractory block attached thereto by a metal plate 6. The other end of the chamber is closed by a burner box 11 having an annular oil preheating chamber 12 formed around an air inlet 13 communicating with an annular air conduit 14 leading to a flue 16 controlled by a valve 17. Air is supplied to the conduit 14 by a fan through a heat exchanger 18 forming an annular conduit around the gas outlet 3. Oil is supplied to the burner through a jet 25 provided with fixed and movable deflectors 27, 28 for guiding the air and fixed to a cover plate 29 pivoted for removal to a hinged cross-bar 30. The supply of oil is controlled by a sliding grooved valve 33 automatically operated by a flap valve 15 in the air conduit 13 through a lever pivoted on a stud 31. The chamber is initially heated by burning paraffin in a tray 23 having a filling opening 22. The oil chamber 12 is provided with a spring valve so that the supply is automatically cut off on detaching the box 11. Surplus oil is collected through pipes 40, 42 in a drain cone 41. The apparatus may be operated with a mixture of oil and solid fuel, as shown in Fig. 4, in which the oil jet 51 is surrounded by a coal jet 52, the powdered coal being given a whirling motion by a helical fin 54. The supply of coal and oil is automatically controlled by valves 55, 56 connected with a flap valve 57 in the air-supply pipe. In a further modification, Fig. 5, the oil and coal are supplied to separate burners, the coal jet being provided with an interior helical fin 59. Undue rise of pressure in the generator or distribution system is prevented by a valve 63, Fig. 6, in the air-supply pipe having a seating in a perforated section of pipe 64 through which the air can escape when the valve is lifted from its seating, on which it is held by a piston 65 moving in a cylinder 67 connected by a small bore pipe 68 with the outside of the generator.
Patent GB-493235-A (GB)
Title: Improvements in or relating to electrical high frequency transmission lines
IPC: H01Q5/00
Filed: 1937-11-08
Abstract: 493,235. Diplex signalling. STANDARD TELEPHONES & CABLES, Ltd. Nov. 8, 1937, No. 30638. Convention date, Nov. 7, 1936. [Class 40 (iv)] [Also in Group XL] Two impedance elements are connected across a line at spaced points to adjust its properties for a first frequency without affecting the attenuation or standing wave pattern outside said elements for a second frequency. A single line 802 may be fed from two sources 801, 851 of frequencies f and F respectively, spaced impedances 820, 821 and 870, 871, formed of sections of line, being provided in the two branches 809, 859 respectively connecting the sources 801, 851 to the line 802. The lines 809, 859 are thus blocked for frequencies F, f respectively and neither upsets the impedance matching between the other and the line 802.
Patent GB-1190091-A (GB)
Title: A Bearing Between Parts of a Building
IPC: E01D19/04
Filed: 1967-07-04
Abstract: 1,190,091. Bearings. F. KILCHER BAUISOLATIONEN A.G. 4 July, 1967 [20 July, 1966], No. 30648/67. Heading F2A. A bearing between parts 1, 2 of a building comprises an elastic bearing body 3 with a plastics sliding layer 5, an elastic layer 7 with a plastics sliding layer G of greater area than layer 5, and reinforcements 4, 8 in the body and layer extending parallel to the sliding layers. Paper tapes 10, 11 are connected to body 3 and layer 7 respectively, and to filling bodies 9 of foam plastics to form a bearing unit. Reinforcements 4, 8 of fabric or fibres, prevent horizontal expansion of layer 7 and of the portion of body 3 adjacent sliding layer 5. On horizontal displacement of building parts 1, 2, layers 5, 6 slide relatively and filling bodies 9 are deformed Paper tapes 10, 11 and bodies 9 may be omitted.