baber/WOPTO huggingface dataset:
Patent GB-1108932-A (GB)
Title: Improvements in and relating to centrifugal fans
IPC: F04D29/28
Filed: 1964-05-04
Abstract: 1,108,932. Centrifugal fans. W. T. TEAGLE. May 4, 1965 [May 4, 1964], No.18406/64. Heading F1C. A rotor blade 1, Fig. 4, for a centrifugal fan comprises a sheet metal pressing having a dished leading surface, a swept-back outer end 8 and a central longitudinally extending rib 4 which terminates in a slot 6. As shown, the blade crosssection may comprise two arcuate portions 3 which intersect to form the central rib 4. Alternatively, two flat portions (17), Fig. 8 (not shown) with curved ends (18) may be provided. A spider 14 is welded to a cylindrical hub 11, a pair of supporting discs 12 being welded to the hub and to the fan shaft 10. The slotted end of each blade 1 fits over the spider 14 and is welded to the hub 11, the rib 4 being welded to an arm 15 of the spider. Annular side plates 16 are welded to the blades.
Patent GB-594887-A (GB)
Title: Improvement in radio position finding
IPC: G01S5/14
Filed: 1944-09-26
Abstract: 594,887. Radio navigation. MAR CONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 26, 1944, No. 18417.Convention date, Nov. 2, 1942. [Class 40 (v)] For determining the position of a mobile station by measuring the distances from each of a plurality of fixed stations 6, 106, the mobile station transmits to each of the fixed stations a frequency-modulated signal (of mean frequency f) which is transmitted back from the fixed stations with a frequency change F<1> different for each station. The mobile station also transmits directly to its receivers 17, 1017 the frequencies F+f and F<1>+f similarly frequency-modulated so that heat-frequency detectors 19, 1019 produce direct voltages proportional to the distances. In the system shown, the map position of the mobile station is shown on the screen of a two-gun cathode-ray tube 31. Alternating current from a source 45 is fed in quadrature to the pairs of deflecting plates of both guns producing circular traces the centres of Which are adjusted by control circuits 43, 37 to the map positions 59, 61 of the fixed stations. The radii of the circular traces are made proportional to the distances by modulating the outputs of source 45 with the voltages from circuits 19, 1019 so that one of the intersections (i3 of the traces will give the map position of the mobile stationTo resolve the ambiguity, if necessary, a third trace corresponding to a third fixed station may be added.
Patent GB-629383-A (GB)
Title: Fan stand
IPC: F24F13/06
Filed: 1947-07-11
Abstract: 629,383. Electric motors. FUKAL, A. F. July 11, 1947, No. 18430. Convention date, March 14, 1942. [Class 35] [Also in Group XXVI] The motor 50 of an electric fan is supported by a centrally-disposed annular member 42 provided with radiallydisposed legs 62 which terminate in upwardlydirected portions 64 for supporting a stack of hoops (not shown) comprising the fan guard. The portions 64 are of channel-section and have lugs 66 to which the guard hoops are attached. A control switch 90 is attached to one of the legs. Specification 629,381, [Group XXVI], is referred to.
Patent GB-357224-A (GB)
Title: Improvements in and relating to detergents and method of preparing the same
IPC: C11D7/60
Filed: 1930-06-18
Abstract: An anhydrous detergent, readily soluble in water, is made by mixing \ba3/4\be to 1\ba1/8\be molecular proportions of alkali metal carbonate with 1 of silica, fusing the mixture, preferably in a reverberatory furnace, to drive off carbon dioxide, and finely grinding the fused product.  Potassium or sodium carbonate may be used.  Traces of iron or aluminium compounds may be removed as volatile chlorides by adding the chemically equivalent amount of sodium chloride to the fusion mixture.  The silica may be pretreated with a mineral acid to remove calcium compounds therefrom.  The product is ground preferably to pass a 10-mesh sieve, and may be mixed with soap or suds.
Patent GB-186644-A (GB)
Abstract: 186,644. Wallace, P. B., and Fox, F. H. April 29, 1921. Angular bending.-In a machine for bending pipes, of the kind comprising a stationary grooved former and a radially adjustable block carried by a lever mounted concentrically with the former, the post, on which one end of a frame and the former carried thereby are mounted serves as a journal for a rotary member having means for connection to the lever, which is mounted above the frame, and the block is carried loosely by a support on the lever and rocks against the support during bending. A removable fixed former 7, Fig. 4, is mounted on a post 5 carried by a table 1 and coacts with a grooved block 10 carried by a sweep arm 8 which is pivoted on the post 5. The arm 8 is connected by a link 39 to an arm 9 also pivoted on the post 5 and carrying a slidable toothed clutch bar 22 to engage a gear wheel 20 which is rotated from an electric motor by pinion 19, worm gear 17, 16 and spur gear 14, 15. The clutch bar may be put into engagement by a handlever 24 pivoted at 24<1> to the arm 9, the pivot carrying a pair of plates 26<1> connected by links 26 to the bar. In order that the bending-arm may be automatically disconnected from the gear 20 at the end of the bending operation, the arm 9 carries a longitudinally movable rod 27, Fig. 5, having a hooked end to engage a pin 27b connecting the plates 26<1>, and guided on the arm by pins 29 and slots 28. This rod 27 is engaged by one end of a rocking lever 30 carried by the arm 9, when the other end engages a fixed stop rod adjustably secured to the frame 3. The end which engages the stop rod is provided with a pivoted release member 32 normally pressed by a spring 35 against a stop 36. The pressure block 10 is loosely mounted in a recess 42, Fig. 3, in a flanged holder 41 which is moved radially in the arm 8 by a hand-lever 44, pivoted at 45 in an adjustably flanged block 46 and having a rounded projection 47 engaging the inclined wall 49 of a recess 43 in the holder. The block 46 is adjustable by a screw 51 passing through an adjustable block 52 secured to the arm 8, so as to accommodate pressure blocks for bending pipes of various sizes. The pipe is clamped to the frame 3, Fig. 2, by a chain vice 55, secured by a nut and bolt in a longitudinal slot in the frame 3 and prevented from slipping by a stop rod 67 engaging an adjustable stop screw 68, Fig. 4. The chain is secured at one end to an adjustable hook 63<1> and clamping pressure is exerted by an eccentric 65 operated by a handlever 66. Specification 6021/13 is referred to.
Patent GB-467950-A (GB)
Title: Improvements in and relating to windshield clearing systems
IPC: B60S1/50
Filed: 1936-07-06
Abstract: 467,950. Windscreen - cleaners. TRICO PRODUCTS CORPORATION. July 6, 1936, Nos. 18676 and 18677. Convention dates, Aug. 12, 1935, and March 7, 1936. [Class 138 (i)] In window-clearing apparatus for a motor vehicle, a measured quantity of clearing fluid is discharged on a window of the vehicle by means adapted to be set so that it operates automatically to deliver the measured quantity throughout a substantially predetermined interval of time at a substantially predetermined constant pressure. In the construction shown in Fig. 1, the oscillatory shaft 3 of a windscreen-cleaner 8 extends through a housing 4 in which is located a jet 7 connected to a reservoir 10 containing liquid. A chamber 17 within the reservoir is connected by a passage 18 to a cylinder 12 containing a piston 15 and a spring 20. When the piston is withdrawn by means of a handle 14 the cylinder is filled with liquid which upon release of the handle is ejected through the jet 7 on to the windscreen. In a modification shown in Fig. 3, the handle 34 is used to control both the spray device and the suction motor for the wiper. The piston stem 36 is surrounded by a valve 35 under pressure from a spring 38. When the handle 34 is withdrawn, the valve 35 is moved by the spring into a position in which a pipe 39 connected to the source of suction communicates by way of a passage 43, with a pipe 42 leading to the suction motor. When it is desired to operate the cleaner without actuation of the spray device, this may be effected by the arrangement shown in which the handle 34 is threaded on the stem and can be unscrewed sufficiently to permit the valve 35 to be moved so that the suction motor comes into operation. In a further construction shown in Fig. 7, the spray pump comprises a piston 151 in the form of a diaphragm engaged on one side by a spring 20<1>. The cylinder 12<1> is adapted to communicate at one end with the inlet manifold of the vehicle engine. When the engine throttle is closed the resulting suction causes liquid to be drawn from the reservoir 10<1> into the cylinder 12<1>, this liquid being discharged on to the windscreen when the throttle is opened. The use of the spray may be discontinued by means of a valve 56 with a manually-controlled knob 57. In a modification the diaphragm is operated by an inertia-actuated member pivotally mounted for movement when the vehicle is suddenly arrested or accelerated. Specification 430,366 is referred to.
Patent GB-763383-A (GB)
Title: New bromine-containing washing and rinsing agents
IPC: C11D3/48
Filed: 1954-06-25
Abstract: A disinfectant composition comprises sodium p-toluenesulphonbromamide (bromamine) and a detergent. Additional ingredients include per-salts, sodium carbonate, sodium bicarbonate, Glauber's salt, sodium chloride, soluble phosphates, silicates, cellulose ethers and esters, starch, perfumes, dyestuffs, superfatting agents, abrasives and sterilizers.  The detergent may be a fatty acid salt (soap) or any synthetic foaming or wetting agent.  The compositions may be used as powders, pastes or solutions.  An example describes an aqueous composition comprising bromamine, alkali salts of fatty acids obtained by saponification of a mixture of tallow, coconut oil and olive oil, sodium carbonate, calcite, water glass, magnesium sulphate, sodium bicarbonate, sodium perborate, perfume and dyestuff. Specification 392,814 is referred to.ALSO:A disinfectant composition comprises sodium p-toluenesulphonbromamide (bromamine) and a detergent. Additional ingredients include per-salts, sodium carbonate, sodium bicarbonate, Glauber's salt, sodium chloride, soluble phosphates, silicates, cellulose ethers esters and glycollates, starch, perfumes, dyestuffs, super-fatting agents, abrasives and sterilizers.  The detergent may be a fatty acid salt (soaps) or any synthetic foaming or wetting agent.  The compositions may be used as powders, pastes or solutions.  An example describes an aqueous composition comprising bromamine, alkali salts of fatty acids derived by saponification of a mixture of tallow, coconut oil and olive oil, sodium carbonate, calcite, water glass, magnesium sulphate, sodium bicarbonate, sodium perborate, perfume and dyestuff. Specification 392,814 is referred to.
Patent GB-1219022-A (GB)
Title: Push-button switches
IPC: H04M1/08
Filed: 1968-04-22
Abstract: 1,219,022. Retractive switches. INTERNATIONAL STANDARD ELECTRIC CORP. 22 April, 1968 [28 April, 1967 (3)], No. 18871/68. Heading H1N. Fixed wire contacts 34, 35 of a push-button electric switch are held in position on a baseboard 28 by laterally constraining the wires against lugs 16, 17 on the baseboard. The wires 34, 35 are disposed on opposite sides of a pushbutton slider 31 for engagement by a wire bridging contact 50 of generally U form clipped into a recess 52 on the end of the slider 31 and having V limbs 51 for abutting and sliding contact. The slide 31 is guided in grooves 44 of a housing 30 for the return spring 48 and has resilient lugs 43 for locking engagement in endstop windows 45 of the housing. The free ends 36, 37 of the wires 34, 35 are located in terminal lugs 11, 12. The terminal mounting for the wire loops 36, 37 comprise nuts and bolts (not shown) which clamp cover-plates (not shown) having locating lugs projecting through apertures 41, 42 in the base-plate 28.
Patent GB-335221-A (GB)
Title: Improvements in cleats for supporting electric cables
IPC: F16L3/10
Filed: 1929-06-19
Abstract: 335,221. Hughes, A. E., and Liverpool Electric Cable Co., Ltd, June 19, 1929. Wood-screws. - A cheeseheaded wood-screw 6 is formed with a tapped hole 9 in its head to receive a screw 8.
Patent GB-1385084-A (GB)
Title: Cutting machines for cable or the like
IPC: B23D36/00
Filed: 1972-04-24
Abstract: 1385084 Flying shear POST OFFICE 24 April 1972 18935/72 Heading B3W Machine for cutting continuously or intermittently fed cable &c. into predetermined lengths includes a cutter mounted on a carriage, a sensor spaced from the cutter by the predetermined length to generate a first signal, which is transmitted by a fluid circuit when that length of cable has passed the cutter, a first piston and cylinder device arranged to operate the cutter in response to the first signal, the carriage being movable with the cable during cutting and a second piston and cylinder device for returning the carriage after a cut, the first cylinder device retracting the cutter and the second cylinder device returning the carriage in response to a second signal from the sensor which is generated on removal of a cut length from the machine. As shown, a carriage 2 slidable on rails 3 carries a blade 8 pivoted to brackets 9 and actuated by a cylinder C1, a cable guide 12 and an ejector plate 5 movable laterally by cylinders C3. At the outlet end of the ejector plate is a gate 6 mounted on the  operating arm of a valve V6. A valve V5 on the carriage 2 is actuated by engagement with a fixed bracket 13 to which the piston rod of a return cylinder C2 for the carriage 2 is attached. In use, cable fed through the guide 12, past the blade 8 and through the tunnel formed between the plate 5 and the carriage displaces the gate 6 which operates the valve V6 causing the cylinder C1 to move the blade 8 through a cutting stroke and the return cylinder to act in the carriage feed direction to assist the carriage-driving action of the cable. The valve V5 is so positioned that it is tripped by the bracket 13 as soon as the cable is sheared through. Operation of the valve V5 actuates the cylinders C3 to move the ejector plate 5 sideways which allows the cut length of cable to fall into a receptacle (not shown) and the gate 6 to close and thus open valve V6. Operation of valve V6 causes the cylinder C1 to retract the blade 8 and cylinder C2 to return the carriage to its starting position. Air is exhausted from cylinder C1 through a quick exhaust valve and a silencer (neither shown). As the carriage is returned valve V5 causes the cylinders C3 to return the plate 5 to the position shown. To allow cables of different diameters to be cut the valve V5 may be adjustably mounted on the carriage or the bracket 13'may have an adjustable buffer for tripping the operating lever of the valve, thus varying the distance travelled by the carriage, and thus the time allowed forthe cutting stroke of the blade 8. The cylinder C2 may be replaced by a return spring.
Patent GB-327641-A (GB)
Title: Improvements in furnace chamber walls, more particularly for steam-boiler furnaces and the like
Filed: 1929-06-20
Abstract: 327,641. Ehmann, W. June, 20, 1929. Wall.-In a furnace wall consisting of an outer wall 1 spaced from a refractory lining wall 3, the lining wall is made up of separately removable sections each in the form of an arch. The superposed sections of the lining wall are carried by brackets 5 projecting from the outer wall 1 into the plane of the lining wall, and shielded from the fire by the upper part of the section below. The arches are supported laterally by wedge-shaped blocks S, which are threaded on to and held in place by iron bars 7, of T-shaped cross-section, secured to the outer wall bv anchor bolts 8. Springs 10 bring the sections back to their previous position on cooling. In the upper part, where smaller expansions occur, refractory bricks 11 project inwards from the outer wall to prevent the sections becoming loose.
Patent GB-266786-A (GB)
Title: Improvements in or relating to wheels for measuring lengths of lines on surfaces
IPC: G01B3/12
Filed: 1926-04-26
Abstract: 266,786. Thompson (Wolverhampton), Ltd. J., Thompson, W. J., and Hampton, G. A. April 26, 1926. Measuring wheels for plans and the like.-Comprises a graduated wheel f mounted in a frame A fitted with a pointer and a second trailing wheel mounted in a rearward extension of the frame and tracking with the main wheel. The frame A comprises two sloping metal strips a which carry between them at their lower ends a small roller b. At. their upper ends the strips are secured to the vertical metal strips c, d, the lower ends. of which carry the axle e of the large graduated wheel f. The strip d is arched over the edge of the wheel f and shaped as a circular lug g, the strip c being bent to form a similar lug h. Between the lugs is mounted a star wheel B marked in steps of two feet, which is the circumference of the big wheel. A fixed pointer D is provided. A ratchet wheel e in fixed relation to the wheel f is engaged by springs m. A handle E is secured to an arm F carried between the strips a..
Patent GB-1307916-A (GB)
Title: Phase comparison circuit
IPC: H04N5/073
Filed: 1970-04-21
Abstract: 1307916 Phase comparators in automatic phase control systems ITT INDUSTRIES Inc 21 April 1970 [25 April 1969 26 March 1970] 18973/70 Heading H3A A phase comparator for comparing the phases of a triangular and a rectangular pulse signal comprises: a first circuit T1, T2, T3 which inverts the portion of the rectangular pulse occurring during the time when the triangular pulse amplitude lies on one side of a reference level, and passes un-inverted that portion of the rectangular pulse occurring during the time when the triangular pulse amplitude lies on the other side of the reference level; a second circuit T4, T5, T6 for combining the inverted and non- inverted outputs from the first circuit; and an integrator C1, R1 for integrating the combined signal. The triangular signal is applied to one side A of a long-tailed pair. The reference level D is applied to the other side and, during the time that a pulse is present at B, either T1 or T2 will conduct depending on the amplitude of the signal at A relative to that at D. The comparator is used in an A.P.C. system in a television receiver, and when the two phases are synchronized, the time constant of the integrator C1, R1 may be increased by switching in a second capacitor C2, by means of a further circuit T7 ... T11. The pulse signal applied at B and a further rectangular pulse signal derived from the triangular signal are applied at inputs E, F of a coincidence gate T8, T9, so that when the pulses in the two trains coincide transistor T7 is switched on to connect capacitor C2 across capacitor C1
Patent GB-477960-A (GB)
Title: Improvements relating to varying or adjusting the frictional resistance between opposing surfaces
IPC: F16C1/18
Filed: 1936-07-08
Abstract: 477,960. Handle-bar &c. control levers. MELSOM, W. A., and BOWDEN (ENGINEERS), Ltd. July 8, 1936, No. 18985. [Class 136 (i)] - [Also in Group XXV] In a pivot for two or more independent control levers, such as for Bowden mechanism on motor-cycles, with friction means for holding the levers in adjusted positions comprising thrust members pressing against bearing surfaces of the levers, the friction on each lever is independently variable by means causing each thrust member to move along the pivot axis of its lever independently of any other thrust member when rotated by irreversible driving means incorporated in the pivot mounting and operable from the exterior. In the form shown, a base member 1 has an integral screw-threaded pin 2 carrying thrust members 3, 4 having bosses on which the hubs of control levers 5, 6 are rotatable. Each thrust member 3, 4 has a toothed periphery engaged by a worm 11 carried in an extension of the base 1 and operable by a screwdriver or any other suitable tool so that rotation of the worm causes the thrust member to move along the threaded pin 2 and press on the lever hub either directly or, as shown, through the medium of a spring disc, the worm mechanism preventing any slacking back ; the pitch of the thread on the pin 2 is comparatively fine, particularly where no spring disc is provided to transmit the pressure of the thrust member. If desired any of the thrust members may act on more than one pair of bearing surfaces. The worms may be retained in their bearings by tangential pins engaging circumferential grooves in the worms. The bearing faces of the thrust members and lever hubs may be conical, concave or convex instead of flat and may be lubricated sufficiently to prevent seizing without substantially reducing the friction between them. Spur or bevel gearing with pawl and ratchet or other appropriate locking means may be substituted for the worm gearing. In the arrangement shown in Fig. 7, pinions 22, 23 for rotating the thrust members 20, 21 are pressed apart by a spring. to engage fixed pawls 28 ; each pinion has an operating head accessible from the outside of the mounting and is freed from the pawl 28 by pressing the head inwards before rotating it. The adjusting means may be applied to a pivot for a single lever in which case either one or two rotatable thrust members may be used.
Patent GB-684872-A (GB)
Title: Ploughing device
IPC: A01B3/38
Filed: 1950-07-31
Abstract: 684,872. Tractor-mounted ploughs. SLOSS, W. July 31, 1951 [July 31, 1950]. No. 19012/50. Class 6 (i). A tractor-mounted multi-furrow plough comprises a frame 2 carrying shares 1 arranged in echelon, the frame having coupling points 4 for tractor draughtlinks so arranged with respect to the shares that the sum of the moments of the lateral thrusts upon the shares, about these points, balances the moments of the longitudinal resistance. The tractor is of the endless-track type so that the ploughs must run offset. To counteract the additional gravitational component when ploughing hillsides the bar 3 carrying the coupling points 4 may be laterally adjustable on the frame 2.
Patent GB-606674-A (GB)
Title: Improvements in or relating to heat-exchangers
IPC: F28F9/00
Filed: 1945-07-25
Abstract: 606,674. Tubular heat - exchangers. SULZER FRERES SOC. ANON. July 25, 1945, No. 19061. Convention date, Aug. 25, 1944. [Class 64(iii)] In a heat-exchanger wherein one medium flows around superposed rows of parallel tubes 6, 6<1>, 6<11> through which the other medium is passed, the tubes of each row are staggered unsymmetrically with respect to the tubes of rows adjacent thereto in such a manner that the ratio of shortest distance between a tube of one row and one adjacent tube of the following row to the shortest distance between the first mentioned tube and the other adjacent tube of the following row is a ratio in which the two integers have no common divisor and at least one integer is greater than 4, e.g. a ratio of 7:4. With this arrangement the stream 2 flowing between two adjacent tubes of a row is divided by a tube of the following row into two unequal streams 7, 8 and the stream contacts a tube not more than once every third row of tubes. In a modification, Figs. 3, 4 (not shown), the heat-exchanger is constructed as a number of individual units with one fluid, e.g. oil, flowing through each unit in a direction transverse to the other fluid, e.g. cooling water, and the units are separated by a hollow partition in which additional cooling water flows.
Patent GB-223661-A (GB)
Title: Improvements in shock absorbers suitable for use on aircraft
IPC: B64C25/64
Filed: 1923-07-26
Abstract: 223,661. Gloucestershire Aircraft Co., Ltd., Folland, H. P., and Preston, H. E. July 26, 1923. India-rubber springs. -In a shock absorber for aircraft and other purposes and comprising india-rubber pads A alternating with metal plates B, the pads and plates are threaded on two or more tubes C, D. The pads and plates are shaped to adapt them for enclosure in a streamline casing E and the width of the india-rubber around each tube is kept approximately constant to ensure an equal distribution of pressure.