baber/WOPTO huggingface dataset:
Patent GB-647023-A (GB)
Title: Improvements in and relating to percussive air-operated pick hammers
IPC: B23Q11/08
Filed: 1948-05-27
Abstract: 647,023. Percussive drills. ATLAS DIESEL CO., Ltd., and EMMS, J. D. May 27, 1948, No. 14351. [Class 124] A pneumatic pick comprises an automatic water pressure controlled air valve, which interrupts the air supply if the water pressure falls below a predetermined value, connected to the pick by tubing, and air and water control valves in the pick operated by a single trigger. As shown, air and water enter an automatic valve by connections 8 and 7 respectively, the water passing into a chamber 9 and acting, if under sufficient pressure, on a diaphragm 10 to open a spring-closed ball valve 12 thus allowing air to pass to an outer hose 15 while the water passes through an inner hose 16. An air valve 25 controlled by a trigger 26 in the tool handle 18 admits compressed air to operate the tool and also to open a ball valve 20, fitted in a housing between the handle and the body of the tool, and admit water to sprayers in the nose of the tool. The automatic valve may be situated some distance, say 6-10 feet, from the pick.
Patent GB-716072-A (GB)
Title: Means for automatically adjusting the injection timing of the injection pump of an internal combustion engine
IPC: F16D3/10
Filed: 1952-06-06
Abstract: 716,072. Shaft couplings. KLOCKNERHUMBOLDT-DEUTZ AKT.-GES. June 6, 1952 [June 8, 1951], No. 14388/52. Class 80 (2) [Also in Group XXVIII] Apparatus for varying the time of injection of a fuel-injection pump in accordance with the speed comprises a ring attached to the driving shaft and having a boss 5, and a projection 3 carried by the driven shaft 2; the parts 3 and 5 are pressed apart by a spring 4. Wedge-shaped centrifugal members 8 ... 11 are loaded by springs and alternate with elements 12 ... 14 between the inclined faces 6, 7 of the parts 3, 5. The elements 12 ... 14 are free to move circumferentially in the ring 1 and the elements 12 and 14 may be made from sintered metals and carry rotatable shoes 19 for engagement with the 'centrifugal members. The spring loading, or the mass, of each centrifugal member may be different so that the adjustment of the coupling is directly proportional to the speed.
Patent GB-143877-A (GB)
Title: Improvements in flexible shaft couplings
IPC: F16D3/78
Filed: 1920-05-26
Abstract: 143,877. Thomas, M. T. Jan. 6, 1917, [Convention date]. Universal joints; securing coupling-heads on shafts.-A universal joint has two laminated flexible rings 22 connected alternately to the coupling-heads 11 on the shaft end by screws 23, washers 26, and nuts 24, 18, and to a central ring 21 fitting loosely over projections on the heads 11 by screws 27 and washers 28. Springs 25 in the ring 21 bear against the nuts 24, and recesses 16 accommodate the heads of the screws 27. The coupling-heads 11 are secured to the shafts by keys 12 fitting recesses in the heads and with concave cutting-ends cutting away the shaft as the keys are driven.
Patent GB-693974-A (GB)
Title: Improvements in or relating to bunsen burners
IPC: F23D14/08
Filed: 1950-06-09
Abstract: 693,974. Atmospheric gas burners. SINGER, A. E. SAUNDERS-. Aug. 22, 1951 [June 9, 1950], No. 14495/50. Class 75(i) A Bunsen burner comprises a vertical flame tube 2, Fig. 1, having a gas inlet 8 at the side thereof. near its lower end, which lower end is open for admission of air controlled by an apertured slide 11. The latter is slidable in channels between the burner base 3 and a dome 1 carrying the tube 2, and is formed as a leaf curved or twisted to act as a spring whereby it is held frictionally in its adjusted position, stops 13, 13a, Fig. 2, being provided at the ends thereof. An additional spring 14 may be provided for holding the leaf 11 in position. The gas inlet 8 through which a jet of gas issues at the side of the burner tube 2 consists of a radial hole in a gas inlet tube 6 having a closed inner end 7. The base 3 has studs 5 or is otherwise constructed to allow passage of air thereunder to the tube 2.
Patent GB-333283-A (GB)
Title: Improved automatic coupling for railway vehicles and the like
IPC: B61G3/04
Filed: 1929-05-09
Abstract: 333,283. Bogdanov, V. N. May 9,1929. Automatic couplings ; convertible to non- automatic. -An automatic coupling for railway &c. vehicles consists of two interengaging halves each provided with a sliding sector which is caused, by means of the drawbar of the vehicle, to rotate within the hollow head of its own half, locking it with the buffer gear of the other half, a cotter locking each half-coupling on the return movement of the drawbar. In action, the two projections 2 on each of the half-couplings first come into contact with the respective shields 4, and centralize the coupling, at the same time partially rotating the sectors 5. During this initial rotation inclined surfaces on the sectors 5 engage wedge surfaces on the cotters 6, raising the latter. On further movement of the vehicles the half-couplings slide on their respective drawbars so that the end portions 12 of the bars press against ribs 11 on the sectors 5, which complete their rotation within the coupling heads and lock with the buffer gear or knuckles 3. On commencing traction the cotters 6 are caused to drop by their own weight, locking the sectors 5 in the closed position. A chain is provided, attached to the sector 5, for uncoupling the vehicles by hand. The coupling may be modified to adapt it for connection to an ordinary screw coupling. Provision can be made for enabling electrical connections to be automatically connected.
Patent GB-599828-A (GB)
Title: Sound carriers
IPC: G11B5/64
Filed: 1945-06-08
Abstract: 599,828. Magnetic sound carriers. IPSOPHON PATENTGES. AKT.-GES. June 8, 1945, No. 14612. Convention date, Oct. 21, 1944. [Class 40 (ii)] A sound carrier for magnetic recording consists of a rust-proof steel possessing an incomplete austenitic structure, having a low permeability and a saturation remanence of less than 500 Gauss.
Patent GB-1188581-A (GB)
Title: Improvements in or relating to the Wrapping of Layered Composite Thermal Insulation
IPC: F17C1/12
Filed: 1967-03-31
Abstract: 1,188,581. Wrapping around vessels. UNION CARBIDE CORP. 31 March, 1967 [1 April, 1966], No. 14702/67. Heading B8G. [Also in Division F4] A cylindrical vessel 10 with domed ends 106 is wrapped with layers of composite insulation, each layer comprising a component of low thermal conductivity and a component of high radiation reflectivity by apparatus comprising a frame 15 carrying; (a) drive means (e.g. a motor 14 and shaft 11) to rotate the vessel about its longitudinal axis, (b) a supply of insulation (either rolls 37, 38 each with one component of the insulating layer, or a single roll if the components are integral) to wrap round the cylindrical surface 1 of the vessel, and (c) a supply of insulation (e.g. rolls 17 to 20) carried by an arm 21 rotatable by drive means (e.g. motor 27 and shaft 26) to wrap orbitally around almost all the surface of the vessel 10. The ratio of the rotational speeds of shafts 11 and 26 is predetermined so that each strip 14b of insulation just overlaps the one previously laid. To allow for the build-up in the thickness of insulation the motor 27, arm 21 &c. may be mounted to undergo continuous angular adjustment about an axis normal to both shafts 11 and 26 while wrapping takes place, Fig. 4 (not shown). The tension in the layers being wrapped may be adjustable either by braking discs 40, 41 being loaded by springs 30, 31, 44, 45 whose loads are varied by moving collars 28, 29, 46, 47.
Patent GB-791912-A (GB)
Title: Improvements in cast brake beams
Inventor: COTTRELL ROBERT BOYD
IPC: B61H13/36
Filed: 1956-05-11
Abstract: 791,912. Brake beams. AMERICAN STEEL FOUNDRIES. May 11, 1956, No. 14723/56. Class 103 (1). A cast brake beam is formed with tension and compression members 8 and 2, respectively, each having upper and lower flanges 10-10 and 4-4 and an interconnecting web 12 and 6 respectively, the flanges on one member merging with the flanges on the other member at each end of the beam to form tubular end portions 60-60 to the outboard end of which is connected a brake head 68. Guide lugs 58-58 may be provided at each end of the brake lever integral with the casting and adapted for sliding engagement with brackets on the side frames of railway trucks. The tension member 8 has its medial portion 14 interconnected to the medial portion 16 of the compression member 2 by means of a strut 18 of generally tubular cross-section having a brake lever slot 20 and a pin opening 22. Specification 659,987 is referred to.
Patent GB-144625-A (GB)
Title: Improvements in underfeed furnaces
IPC: F23K3/12
Filed: 1920-05-31
Abstract: 144,625. Armstrong, S. A., and Blackburn, A. H. June 9, 1919, [Convention date]. Mechanical stoking; grates.-In an underfeed stoker furnace of the type in which fuel is fed along a central retort and passes to branch retorts, inwardly-directed marginal tuyeres are provided along the side of the retorts and across the ends of the branch retorts. The furnace shown comprises a main longitudinal retort 30 with lateral branch retorts 32, the whole being supported by partitions 25, separating the ash-pits 24 from the air chamber 23, and by cross-bearers 26. Fuel is fed by a reciprocating pusher 17 from a hopper 10 through the throat 12 to the retort 30, in which is a fuel feeding and clinkerbreaking device consisting in a rod 40 carrying in adjustable position pusher heads 46, 47 and reciprocated by the ram 17 through an adjustable lost-motion device. In each branch retort is a pusher 51 operated by rack and spur gearing from rock-shafts 54, also operated through adjustable lost-motion devices by a motor at the front ef the furnace. The main retort 30 is of U-section, its floor sloping upwardly from front to rear whilst its top edge is substantially horizontal. Tha rear end 31 is formed as a re-entrant 'prow' which deflects the fuel into the rearmost branch retort. The branch retorts 32 are also of U- section, their floors sloping upwardly and their top edges downwardly towards their outer ends. They are bolted to flanges 61 on the sides of the main retort. Tuyere-blocks 78 and inner and outer end tuyere-blocks 75, 80 span the gap between the adjacent edges of the branch retorts, and are formed with depending hook portions 77 engaged by locking bars 69, Fig. 5. The bars 69 are rocked to disengage the tuyere-blocks by means of two rods 73 connected to the outer ends of levers 72 on the bars. The end blocks 75, 80 are additionally secured by lugs passing through slots in their seating. Tuyere-blocks 83 are provided along the front and bridge walls, and are preferablv made high, steeply sloped, and with baffles 83<1> to cause the air to sweep their exposed surfaces, in order to prevent adhesion of clinker; they are held in a similar way to the other tuyere-blocks. Side dumping grates 85 are provided.
Patent GB-143410-A (GB)
Title: Improvements in motor tractors for agricultural work
IPC: B62D49/00
Filed: 1919-06-12
Abstract: 143,410. Wallace, D. M., and Guthrie, W. June 12, 1919. Steering-gear. - In a tractor having a front steering and driving wheel and two rear driving- wheels, all three wheels are driven when going straight ahead, but, when turning, the wheel on the inside of the curve is declutched by the action of the steering-wheel. The front wheel b, Figs. 1 and 2, is mounted in a fork which is pivoted in the forward end of the main frame. The steering-pivot 1 is adjusted through worm gearing from the hand-wheel 6, ball bearings 33 being interposed between the frame, the worm wheel 3, and the wheel fork. The motor f drives the rear wheels c, d through a clutch 46, two-speed and reverse gearing, bevel gearing 36, 35, a transverse shaft 25, clutches 23, 24, and spur gearing 28, 29. When the steering-wheel is deflected to one side or the other, one of the clutches 23, 24 is disconnected by means of a roller 9 on a rearward extension of the wheel fork operating one or the other of the two curved levers 10, 11, which are connected to the clutches through finks and bell-crank levers 20.
Patent GB-1163199-A (GB)
Title: Absorption Refrigeration Systems
IPC: F25B15/10
Filed: 1967-03-31
Abstract: 1,163,199. Refrigerating. KUHLAPPARATE G.m.b.H. 31 March, 1967 [31 March, 1966], No. 14865/67. Heading F4H. Liquid refrigerant from the condenser 13 of a continuous cycle absorption refrigeration system operating with inert gas passes to the main evaporator 15 sequentially through a line 20 in heat exchange with a line 21 and an auxiliary evaporator 22 in which part of the refrigerant evaporates in countercurrent with part of the inert gas from the gas heat exchanger 17. Line 21 conveys enriched inert gas from the auxiliary evaporator to a line 25 communicating with the bottom of the absorber 12. A wire coil 27 is provided in the auxiliary evaporator. In a modification (Fig. 3, not shown), the condenser, the condensate line and the auxiliary evaporator are formed by a tube of constant diameter which is flattened at the zone of heat exchange with the enriched gas line.
Patent GB-659809-A (GB)
Title: Electric pulse translator circuits
Inventor: REEVES ALEC HARLEY
IPC: H04J3/04
Filed: 1947-06-05
Abstract: 659,809. Multiplex pulse signalling. STANDARD TELEPHONES & CABLES, Ltd. June 5, 1947, No. 14876. [Class 40 (v)] A pulse communication channel selector comprises a cold cathode gaseous discharge tube having a sequence of (n-1) discharge gaps fired in turn by each succeeding pulse and an output gap 4 feeding every nth pulse as a gate pulse to a normally blocked channel modulator or demodulator. In Fig. 1 a pulse modulator comprises a tube with parallel anode 2 and corrugated cathode 3 initially fired from one end with a smaller size gap from an input terminal 9 feeding thereto regularly repeated rectangular pulses, an output cathode 4 feeding every sixth pulse across opposite points 15, 16 of a rectifier bridge normally blocked by a battery 21, at the same time this pulse due to the extended size of the cathode 4 causing a squeg extinguishing all the discharges, the operation being successively repeated. Connected in series with the blocking battery 21 across points 20, 19 of the bridge are a modulation input transformer 23 with high-frequency byepass condenser 24 and a transformer 22 feeding positive triggering pulses with sloping crests coincidently with the input pulses. On a gate pulse limited by the rectifier 18 being applied to the bridge it conducts and a pulse is passed to the resistor 17 with leading edge time modulated by the coincident effect of the trigger pulse sloping crest and instantaneous modulation and with trailing edge coinciding with that of the trigger pulse. This pulse is fed through a condenser 27 to trigger means 28 generating a corresponding duration modulated pulse or a time modulated pulse of constant duration obtained by differentiation. Similar channel modulators generating gate pulses in turn are connected in parallel with the device 28 input. The tube cathode may alternatively be a wire helix or metal comb. The anode voltage is stabilized for small discharges by a rectifier 11 through a choke 12. Fig. 3 (not shown), shows a demodulator for a particular channel of time modulated pulses, with rectifier bridge unblocked by synchronized and limited gate pulses from a discharge tube 1 fed through a transformer 37 so that the particular channel pulses fed through a delay line 32 to the bridge produce pulses across the output transformer 39 with leading edges coinciding with those of the delayed timemodulated pulses and trailing edges determined by those of regularly recurring pulses also fed into the bridge across points 15, 16 from a transformer 38. The resulting amplitude modulated pulses feed an integrating condenser 40 shunting the output transformer 39, or a low-pass filter, giving the signal output. The delay line ensures the pulses occurring after the gate pulses which may somewhat vary in occurrence. Similar channel demodulators with successively phased operation are connected in parallel with the pulse input. Specifications 639,827 and 659,805 are referred to.
Patent GB-1129507-A (GB)
Title: Method of stabilizing aqueous formaldehyde
IPC: C07C45/86
Filed: 1967-03-31
Abstract: 1,129,507. Formaldehyde. KAO SOAP CO. Ltd. 31 March, 1967 [5 April, 1966], No. 14891/67. Heading C2C. Aqueous formaldehyde is stabilized by the addition of a water-solubilized polyvinyl acetal obtained by the addition of an anionic surface active agent, in the ratio of 2: 3 to 1: 4 by weight to the acetal such as polyvinyl formal, polyvinyl acetacetal and polyvinyl butyral. The surface active agent may be sodium laurate, sodium dodecyl sulphate, sodium dodecyl benzene sulphonate, sodium butyl naphthalene sulphonate, sodium dodecyl sulphonate and alkenyl sulphonic acid salts. An amount of 0À0001 to 0À01% by weight based on the sum of the acetal and surface active agent is used as the stabilizer.
Patent GB-1293924-A (GB)
Title: Improvements in and relating to locking means for doors and the like
Inventor: ALDRIDGE EDWARD JOSEPH
IPC: E05B65/00
Filed: 1969-03-21
Abstract: 1293924 Releasable fastenings E ALDRIDGE & SON (LOCKSMITHS) Ltd 13 March 1970 [21 March 1969] 14980/69 Heading E2A A frame or casing 1 houses a lock 4 or locking mechanism and is adapted for removable fitting to the edge zone of a door or the like by slidable engagement therewith, the lock comprising a bolt 8 extensible, when actuated, beyond the periphery of the door or the like, in order to engage an adjacent fixture 10 and thus lock the door or the like. As shown the casing is constructed from a piece of sheet metal bent to S-shape with end walls 3 welded in position to complete a box-like shape, which has a U shaped channel at one side; the end walls 3 are provided with inturned lugs 5 tapped to receive screws 6 by which the face plate of the lock 4 is secured to the casing. Metal packing strips 11 are provided which can be disposed in the U-shaped channel if the door or the like is smaller in thickness than the width of the channel, these packing strips being held in place by screws 12 which pass through counter sunk holes in one wall of a member 2 of the channel.
Patent GB-296483-A (GB)
Title: Improvements in sectional maps, charts and the like
IPC: G09B29/02
Filed: 1927-06-07
Abstract: 296,483. Corbishley, N. E. June 7, 1927. Indexing; tabs.-In maps, charts, or the like dissected into sections which are mounted upon backings of reinforcing material for filing or storing, each section b is provided with a projecting lug or ear-piece a bearing numbers or other indications relating to the adjoining sections of the map of which it forms part, the lugs being so arranged upon the sections that they appear in echelon when the sections are filed in order one behind the other, a zig-zag formation being obtained if a large number of sections are contained within the receptacle. The edges of the sections and lugs may be reinforced by a surrounding lap c of the backing material. Specification 201,390, [Class 146 (ii), Stationery &c.], is referred to.
Patent GB-1247820-A (GB)
Title: On-load tap changing apparatus
IPC: H01H9/00
Filed: 1970-03-31
Abstract: 1,247,820. Hydraulic systems. BROWN BOVERI & CO. Ltd. March 31, 1970 [April 2, 1969], No.15041/70. Heading F1P. [Also in Division H1] A hydraulic system for a fluid-pressure operated on-load tap changer (see Division H1) has piston-cylinder arrangements 43, 44, 45 immersed in an oil chamber and actuated by the rotation of a disc 33 e.g. by a spring drive. Rotation of the disc from the position shown in an anti-clockwise direction moves piston 42 which once past port 47 pressurizes pipe 26, operating piston 17 of a changeover switch 6. Pressure generated by piston 41 causes the piston 28 of a vacuum switch actuator to move against spring 29, this in turn operating piston 56 in valve cylinder 55 and exposing the piston 21 of a further changeover switch to the pressure in pipe 54. The piston 41 will return to its topmost position, resetting the vacuum switch actuactor and the valve. In the next changeover operation pump 43 will function instead of pump 45. By-pass ducts 60, 61 are provided in the fluid-pressure generators to dampen the piston motion at the end of their strokes, whilst ducts 58, 59 ensure delay free operation. The arrangement shown may be duplicated for the phases of a three phase system, the respective crank-shafts being spaced at 120 degrees around the disc 33. For Figures see next page.
Patent GB-1035612-A (GB)
Title: Apparatus for developing photocopies by heat
IPC: G03D13/00
Filed: 1963-04-17
Abstract: 1,035,612. Photographic developing apparatus. METEOR APPARATEBAU PAUL SCMECK G.m.b.H. April 17,1963 [April 27,1962],No. 15042/63. Heading G2A. In an apparatus for heat development of photographic sheets, the sheets are conveyed by an endless belt so as to pass over a stationary convex surface which is heated by electrical induction. In the form shown in Fig. 1, the stationary heated member 1 has a cylindrical surface against which the photographic paper is carried by frictional engagement with an endless belt 2. The member 1 is heated by induction means, which may be augmented by resistance heating. In Fig. 5, the heated member is in the form of a parabolic cylinder 19, so that the paper enters and leaves the apparatus on the same side.
Patent GB-1541100-A (GB)
Title: Preparation and use of a protein-bound polyurethane foam
IPC: C12N11/08
Filed: 1976-04-13
Abstract: In order to prepare the foam containing bonded protein, first, in the absence of water, a solution of the protein in liquid polyurethane prepolymer containing terminal isocyanate groups is prepared, and the resultant solution is then foamed by admixing water. The resultant foam contains from 0.1 to 50% by weight of the added, active protein preparation on a water-free (anhydrous) basis. It has a hydrophillic poly(urea-urethane) foam matrix. The protein employed can be an enzyme, an antibody or an antigen. The foam with the immobilised protein can be used for carrying out various biological reactions. For example, the foam can contain, as antibody, the bonded hepatitis antibody and can be used to separate the hepatitis antigen from human blood. By correspondingly immobilising the immunoglobulin G, the rheumatic arthritis factor can also be removed from human blood.