baber/WOPTO huggingface dataset:
Patent GB-161207-A (GB)
Title: Improvements in or relating to railway signalling systems and apparatus
IPC: B61L1/18
Filed: 1920-01-10
Abstract: 161,207. Tattersall, A. E. Jan. 10, 1920. Right to Patent relinquished. Electrical systems, automatic. - In an alternating - current track-circuit system, a regulating - impedance is inserted in series with the secondary winding of the track transformer of such a value that the ratio between the magnitude of the regulating - impedance of the rail and relay circuit is high, for example, twelve to fifteen to one, so that the current used is maintained substantially constant whether or not the track is occupied. An impedance C is connected in series with the secondary B of a transformer, the primary A of which is connected to the alternating-current mains Y. An impedance D may be inserted in series with the primary E of an isolating-transformer the secondary of which feeds a track relay F. If an isolating-transformer is not provided, the impedance D may be inserted in series with the track relay F and may safeguard the relay from damage from stray currents.
Patent GB-1024253-A (GB)
Title: Improvements in or relating to machines for treating animal skins
Inventor: PITTARD CYRIL JACK
IPC: C14B1/30
Filed: 1961-07-24
Abstract: <PICT:1024253/C6-C7/1> <PICT:1024253/C6-C7/2> Skins are treated with bladed cylinder C when passing over the rollers A and B.  In the forward position shown in Fig. 2 the skin is being treated for a predetermined time.  Then the timing mechanism governed by circuits of Figs. 3 and 4 (not shown) reverses the direction of rollers A and B so feeding the skins back into the machine.  By depressing a foot pedal roller A falls away and the process is repeated with a fresh skin.
Patent GB-478449-A (GB)
Title: Improvements in liquid feed systems and apparatus therefor
IPC: F23K5/04
Filed: 1936-10-05
Abstract: 478,449. Fuel pumps. URQUHARTS' (1926), Ltd., and HERRING, P. H. Oct. 5, 1936, No. 27007. [Class 102 (i)] A pump g, Fig. 1, for supplying fuel in measured quantities, e.g. to injection burners i, is supplied by a gear pump b, which draws from a tank a and discharges back to the tank through a pipe c. The latter communicates also with a receptacle e, from the lower part of which the fuel is fed, through a pipe d of small bore, to the passage between the cylinder g and the discharge valve f <1>. In this manner air bubbles are either discharged to the tank a, or through the valve #<1>, without entering the metering cylinder g. The suction valve f is loaded with a weak spring and the valve f<1> with a stronger spring. A passage k with relief valve k<1> extends between the discharge pipe h and the circulating pipe c. In the embodiment of the invention shown in Fig. 3, the gear pump comprises a gear-wheel 1, on the driven shaft 4, gearing with a wheel of twice its diameter on the cam-shaft 7. The latter carries cams 8, each of which operates a plunger 2 through a lever 24, moving about a fixed pivot, and a lever 25, the pivot of which is carried by a lever 27. The latter is adjustable, either by hand, or by a thermostatic device. The gear pump discharges through a passage 12 into the cam chamber 14, which acts as the air separating chamber, the return circuit to the reservoir being through a passage 15. The feed to the injection pumps takes place through a port 16, passage 17, suction valve 19a and passage 20, the discharge being through valves 21a to a passage 21. A passage 23 forms the byepass to the reservoir.
Patent GB-362021-A (GB)
Title: Improvements in multi-cylinder reciprocating engines
IPC: F02B75/18
Filed: 1930-09-11
Abstract: 362,021. Engine construction. ROYCE, SIR F. H., Nightingale Road, Derby. Sept. 11, 1930, No. 27186. [Class 7 (ii).] In a six cylinder inline or twelve cylinder V-type two or four stroke cycle engine the adjacent pairs of crank throws are contained in planes set at 120‹ apart, the arrangement being such that the crank pins, numbered from one end, give a rotational sequence in end elevation of 1, 6, 3, 2, 5, 4. The invention relates particularly to 90‹ V- type twelve cylinder two-stroke cycle engines; in a fourstroke twelve cylinder engine the planes containing the cylinder axes are inclined at 60‹.
Patent GB-893788-A (GB)
Title: Aerosol valve construction
IPC: B65D83/14
Filed: 1960-08-05
Abstract: 893,788. Dispensing liquids by gaseous pressure. V. C. A. Inc. Aug. 5, 1960 [Aug. 11, 1959], No. 27227/60. Class 102(2). [Also in Group XVIII] An aersol measuring valve comprises a body having a flange 24 for sealing on the neck of a container 10, a resilient sealing washer 40 fitted in the top of the body and a valve plunger having an upper tubular portion 33 with a transverse port 44, a flange 38 sealing on the washer 40 and a lower solid portion 34 which, when the plunger is depressed to bring the port 44 into communication with the measuring chamber formed below the washer 40, passes through a valve seat 30 in the body and seals the measuring chamber from the container. The plunger is guided in its movement by the portion 34, in the valve seat, by the return spring 36 fitting closely about the portion 34 and in the body above the seat 30 and by the flange 38 bearing in the lands between grooves 47 at the top of the body; notches 47a may also be provided in the flange 38 to assist in the flow of fluid. The ferrule 48 securing the valve to the container is recessed and domed at the top and the central opening in it need not be closely fitted to the plunger. The dip tube 28 is fitted in a stepped bore 67 in the body.
Patent GB-810348-A (GB)
Title: Condensates of epoxy fatty acids or esters with polyamines
IPC: C08L63/00
Filed: 1957-08-29
Abstract: Imino linked polymers are prepared by reacting an epoxidized fatty acid or ester containing 8-22 carbon atoms with a polyamine containing 2-9 amino groups which may be primary or primary and secondary.  The epoxidized fatty acids or esters are obtained by epoxidizing unsaturated fatty acids or esters with e.g. peracetic acid, formic acid and hydrogen peroxide or by the addition of hypochlorous acid to the double bond followed by dehydrochlorination. Acids and esters mentioned are oleic, linoleic, linolenic, fish oil and epoxidized tall oil acids, methyl esters of tall oil fatty acids and butyl epoxystearate. Polyamines listed are o-, m-, p-phenylene diamine, p : p1-methylene dianiline, 1 : 4 amino naphthalene, o-tolidine, 2 : 4 tolylenediamine, ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, di 1 : 2- and di 1 : 3-propane triamine, tri 1 : 3-propane tetramine, hydrazine, methyl-, ethyl-, butyl- and phenyl hydrazine.  The products may be copolymerized with polymeric fat acids, aliphatic and aromatic dibasic acids and polyamines, and may be chain terminated with monobasic acids or esters.  They are useful as curing agents for epoxy compounds, e.g. the condensate of bis-(p-hydroxyphenyl) 2 : 2 propane with epichlorohydrin, and are themselves curable to yield hard durable resins useful for protective coatings, adhesives and side seam cements for metal containers.
Patent GB-615434-A (GB)
Title: Improvements in and relating to steam generators
IPC: F22B29/00
Filed: 1945-10-18
Abstract: 615,434. Forced-flow steam boilers; feed-water supply systems; thermostats. JOOSTEN, J. Oct. 18, 1945, No. 27339. Convention date, March 10, 1945. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 18, 1945] [Classes 64(ii) and 123(ii)] A steam boiler comprises a liquid fuel and primary air supply conduit 43 and also a concentric secondary air conduit 44 which open into a combustion chamber 4, defined by a dome 3, and are surrounded by concentric passages 45, 46, 47 which house steam-generating coils 48b, 48c and a pair of superheating coils 48a and are traversed in succession by the hot gases flowing from said chamber 4 to an outlet 65. The coils 48b, 48c are connected together at 50 and the outlet end of the coil 48b is coupled to the superheating coils 48a by a tube 52 in the form of a collar concentric with the conduits 43, 44 and having a diameter substantially greater than that of these coils, the coils 48a themselves being coupled by pipes 9 to a spherical steam receiving chamber 5 which is mounted in the base of the dome 3 and is provided with an outlet pipe 10 leading to an engine, &c. The passages 45, 46, 47 are defined by cylindrical plates 23, 24, 25 and a main casing 1, the said plates being secured to the casing by a hollow conical chamber 20 constituted by plates 14, 18, and the casing 1 is extended at 17 over the dome 3 to provide a chamber 19, the two chambers 19, 20, and also that formed by the plates 23, 25, having a common inlet 21 and an outlet 22 for cold and preheated feedwater respectively with the outlet 22 connected to the inlet of the initial steam-generating coil 48c. Liquid fuel from a pipe 59 is fed into the conduit 44 through an injector 56 which opens into a venturi tube 57 in this conduit, primary air is supplied to said conduit, preferably after passage through a heater 39 surrounding the boiler casing 1, through a flexible conduit 55, and secondary air to the conduit 44 through an inlet 61, initial ignition of the combustible mixture being effected by a sparking plug. The water, fuel and air supplies to the boiler, also the temperature of the superheated steam, are controlled by a thermostat 103, Fig. 4, which is fitted in the steam outlet pipe 10 and comprises a cylindrical casing 201 provided with steam inlet and outlet branches 202 and 203 respectively. Located within the casing 201 are a number of concentric tubes 212 having alternately a high and low coefficient of expansion and connected, one to another, at their ends by ferrules 214, 216. The outermost tube 209 is anchored to the bottom 205 of the casing, and the innermost one 218 is connected at its upper end to a rod 219 which projects through a stuffing-box 220 in the casing cover 204 and is itself connected to a pivoted lever 223, the latter actuating, through suitable mechanism, not shown, valves in the several supply pipes.
Patent GB-942475-A (GB)
Title: Improvements in or relating to valve devices for providing a time delay in the operation of liquid pressure systems
IPC: F16K21/10
Filed: 1961-02-08
Abstract: 942,475. Valves. P. J. HARE Ltd., and P. J. HARE. May 3, 1962 [Feb. 8, 1961], No. 27443/61. Heading F2V. [Also in Division F1] A valve device for use as a time delay in a liquid pressure system comprises a valve 14, Fig. 1, arranged in series with a restriction 16 and controlling a by-pass 13 in a conduit leading from a control valve 10 to the motor of a main valve 11 whereby operation of the motor 11 is delayed. The valve 14, Fig. 2, comprises an inlet 26, an outlet 27 and a valve closure member 25, which co-operates with a seat 19, connected to a spring loaded piston 21. As the liquid flows through the valve, the restrictor sets up a back pressure which acts on the piston 21 to cause the valve to close. The right hand side of the pistons is connected to a dashpot comprising a restrictor 29 which retards the closing of the valve and a non- return valve 30 which allows opening of the valve.
Patent GB-343066-A (GB)
Title: Improvements in or relating to fittings for reinforced tubing
IPC: F16L33/01
Filed: 1929-09-10
Abstract: 343,066. Pipe joints. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(American Cable Co., Inc. ; 75, East 45th Street, New York, U.S.A.) Sept. 10, 1929, No. 27551. [Class 99 (i).] A sleeve or fitting 4 is connected to a flexible tube 2 having one or more layers of reinforcing wire thereon, by forcing the material of the sleeve into the interstices of the tube over the whole surface of contact, such as by a swaging operation. The tube may include inner and outer helical wires 1, 3, the coil 3 being closely wound at its end and being gripped by the sleeve 4. The sleeve 4 may be chamfered at its inner end so as not to grip the tube so tightly at that point. The tube may comprise oppositely wound layers of wire over a flexible core.
Patent GB-385049-A (GB)
Title: Improvements in or relating to subaqueous sound transmitters and receivers
IPC: G01S1/72
Filed: 1931-10-05
Abstract: 385,049. Subaqueous audible signals. MARTI, P. A. D., Usine d'Horlogerie, Montbeliard, Doubs, BERTIN, C. F. J. M. and NANDILLON, A. E. G., Laboratoire du Centre d'Etudes de la Marine, Toulon, Var, both in France. Oct. 5, 1931, No. 27655. Convention date, Oct. 8, 1930. [Class 118 (ii).] Apparatus for emitting or receiving sound vibrations for use in subaqueous depth soundings comprises a hammer or microphone 4 disposed above a vibrating surface 2 carried by a chamber 1 of great mass, say about 200 pounds, filled with liquid and having its open side closed by the hull 6 of the ship, a ring of soft rubber 3 being interposed between the parts 1, 6 so as to permit of a fluidtight joint when the hull is curved at the part 6. The chamber 1 is pressed against the hull by rods 11, 111, 12, 121 of adjustable length bearing against the ship frame 13 and against a rubber ring 14. The height of the chamber 7 is small compared with the wave length of the vibrations employed, for example, one-fifth thereof. Fig. 2 shows a. thick member 8 forming the top closure for the space 7, in which the acoustic emitter or receiver 9 is supported.
Patent GB-1176432-A (GB)
Title: Roll Grinding Machine
Inventor: ROHRER EDWIN H
IPC: B24B5/16
Filed: 1968-06-11
Abstract: 1,176,432. Grinding. E. H. ROHRER. 11 June, 1968, No. 27657/68. Heading B3D. A roll grinding machine comprises a base 11 on which is relatively movable a support for a workpiece 20 and a longitudinally movable carriage 13 on which is a support 14 for supporting a grinding device for turning movement in a horizontal plane, and means to impart turning movement to the device as the carriage is moved longitudinally consisting of at least one cam 31 rotatably mounted on the carriage and engaging a follower on the support, the cam being movable as the carriage moves longitudinally. The workpiece may be a rubber covered roll mounted between headstock 21 and tailstock 22 on a subbase 23 adjustable transversely of the roll axis, the roll being rotated by a hydraulic motor. The carriage 13 is movable along slideways 12 on the base 11 by a leadscrew 24 and supports a pair of rotatable cams 31, 32 engaging respective followers 29A, 30A on the support 14 for the grinding device which comprises a pair of grinding wheels 15 driven by reduction gearing from an electric motor 18, the support being pivotable about a vertical axis. The cams are linked together by a rod 33 and cam 31 is rigid with an arm 34 connected to a bracket 35 having rollers 36 engaging opposite sides of a bar adjustable about a central pivot by a screw 27. During traverse of the carriage, the cams are rocked to cause pivoting of the grinding device to effect crowning of the roll, the peripheries of the grinding wheels remaining tangential to the roll surface.
Patent GB-1521899-A (GB)
Title: Television channel number display circuit
IPC: H03J7/18
Filed: 1975-09-16
Abstract: 1521899 Television receiver channel display arrangement TEXAS INSTRUMENTS Inc 16 Sept 1975 [25 Sept 1974 (3)] 27672/76 Divided out of 1521898 Heading H3Q The subject matter of this Specification is substantially the same as that disclosed in Figs. 1-12, 14, 18 and 19 of Specification 1,521,898 but the claims relate to a TV channel number display circuit in which a predetermined quantity is added (at 716, 718, Fig. 15, not shown) to UHF channel number display words output from a selected address of a store (145, Fig. 8, not shown) to provide a display (at 147) of the selected UHF channel. Specification 1,521,900 is referred to.
Patent GB-719993-A (GB)
Title: Improvements relating to torsion-rod springing for vehicle wheels
IPC: B60G21/055
Filed: 1952-11-03
Abstract: 719,993. Spring suspensions; preventing lateral canting-. DAIMLER-BENZ AKT.- GES. Nov. 3, 1952 [Nov. 3, 1951), No. 27675/52. Class 108(2) In torsion-rod springing for two opposite road wheels of a vehicle, the torsion rod springs for the wheels are provided by a single rod which may be a rod bent to U or V-form. In the arrangement according to Fig. 1 the upper or lower link 11 for each front wheel 10, is connected along its axis of rotation with one element 15 of a V-form torsion rod mounted at its apex in a bearing 16 which may be of rubber. In a similar arrangement, Fig. 4 (not shown), each 'torsion rod element passes through bearings for the links each of which is engaged by.a bent out portion of the respective element. In the arrangement according to Fig. 2, for rear halfaxles 18, each torsion rod element 17 is supported in bearings '22, 23 and engages the half-axle 18 at a point 24 at which antifriction rollers may be provided, the two elements 17 being joined by a U-shaped portion 20. In a further arrangement, Fig. 5, torsion rod elements 17a connected together by a cross-member 20 are each formed with-a portion 27 which engages a strut 28 pivotally connected to the vehicle frame and a half-axle 18. In another arrangement, Fig. 6 (not shown), the torsion rod elements are disposed on the opposite side of the half-axles and the portions 27 engage extensions of the struts 28. In the Fig. 2 arrangement, the portions of the torsion rods engaging the half-axles 18, may be directed obliquely upwards to effect a progressive springing action, Fig. 3 (not shown). In all cases the single rod may be of uniform crosssection.
Patent GB-896858-A (GB)
Title: Improvements in or relating to draft control mechanism for tractors
Inventor: MERRITT HENRY EDWARD
IPC: A01B63/112
Filed: 1957-09-03
Abstract: 896,858. Tractor power lift mechanisms. MASSEY-FERGUSON (UNITED KINGDOM) Ltd. Sept. 3, 1958 [Sept. 3, 1957], No. 27745/57. Class 79(1). Relates to tractors with power lift apparatus in which the pull of a towed implement on its hitch linkages is balanced by a spring whose deflection changes with the towing force and thereby forms part of control means which raises or lowers the implement to maintain constant draft conditions despite variations in soil resistance. In the invention claimed the control means has a balance spring 70 whose characteristic is that its deflection increases at a lower rate than the increase in draft force causing it to deflect. Lift arms (not shown) at the ends of a cross shaft 16 raise and lower the lower hitch links (not shown) of a three-link suspension whose inner ends are pivoted at 42 to two arms 40 on a cross shaft 41. A hand lever 36 pivoted at 37 operates a spool valve 23 controlling supply of fluid pumped at 21 from a sump 18 to a cylinder 12. The piston 13 and piston rod 14 of the cylinder 12 operate the lift arms by turning an arm 15 on the shaft 16. The balance spring 70 is clamped at 72 to the shaft 41 and its outer end is, held between abutments 73 and 75 with one or other of whose curved surfaces 74 and 76 the spring rolls progessively into contact as it deflects to alter its effective length and so give it the required deflection characteristics. An arm 45 also on the shaft 41 is turned as the pull of the hitch links on the arms 40 varies with the soil resistance and operates the valve 23 through a rod 46 and valve lever 38 to raise or lower the lift arms accordingly. A dash-pot 60 damps movement of the arm 45 in the downward direction only. The valve lever 38 is pivoted to the hand lever at 39 on a pin offset from the pivotal mounting 37 on the latter lever on the tractor casing 11, whereby the valve 31 may be operated either by movement of the lever 36, or of the rod 46. The rod 46 is connected to the lever 38 by a pin 49 and a slot 48 which allows lost motion against the spring 50 Other embodiments (Figs. 2 and 3, not shown) illustrate constructions for the flat springs wherein they are attached to and extend outwards along either side of an arm fixed to the shaft 41 and have their free ends constrained by projections on the sump casing. Specifications 896,859 and 896,860 are referred to.
Patent GB-645882-A (GB)
Title: Improvements in or relating to the control and regulation of the generation and supply of steam from electric boilers
IPC: F22B1/30
Filed: 1947-10-16
Abstract: 645,882. Electrode steam boilers. AKTIEBOLAGET ZANDER & INGESTROM. Oct. 16, 1947, No. 27747. [Class 39(iii)] An electrode steam boiler comprises an openbottomed vessel 2 having electrodes 4, 5, 6, and a steam reservoir 1 communicating therewith by a water passage, the steam generated in vessel 2 being withdrawn via a steam exhaust 13a, 13b, which communicates with the steam spaces of the vessel 2 and reservoir 1. In the exhaust pipe 13a, 13b is a member 16 which affords resistance to the steam flow, e.g. a valve, whereby the generation of steam in the vessel 2 is regulated automatically according to the steam supply drawn off through a pipe 14 controlled by a valve 15. For instance, should less steam be required, and valve 15 be throttled, the increased pressure in pipe 13b will act on a diaphragm against a spring in member 16 to throttle the valve in that member, and an increased pressure difference will then exist across member 16, i.e. between reservoir 1 and vessel 2. This pressure difference will force the water level in the vessel 2 down, to decrease the amount of steam generated. An opposite effect occurs if more steam is needed. In a modification (Fig. 3, not shown) it is the pressure in the vessel 2 rather than that in the reservoir 1 which actuates a valve in the line 13a, 13b. A regulator of the type Described in Specifications 212,881, [Class 135], or 485,907, [Group XXIX], operates through a wire and pulley arrangement to actuate the valve. In either of the two above embodiments the vessel 2 and reservoir 1 may be thermally separated.
Patent GB-479677-A (GB)
Title: Improvements in or relating to spray nozzles
IPC: B05B1/04
Filed: 1937-10-13
Abstract: 479,677. Spray producers. BOSCH AKT.-GES., R. Oct. 13, 1937, No. 27793. Convention date, Oct. 13, 1936. [Class 69 (iii)] A nozzle for spraying paints &c., in a flat jet comprises an interchangeable flat plate 4 having a thinned centre part in which is formed a spherical bulge 4a having a saw cut 4c. The cut may be formed by a circular saw in which case cuts 4b are also formed in the thick part of the plate. The spray head may comprise a body 1 to which the plate is clamped by a nut 2 and provided with a spring-pressed conical valve 3 which is opened on the pressure of the liquid reaching a predetermined amount.
Patent GB-243159-A (GB)
Title: An improved device for spraying insecticides and like purposes
IPC: B05B11/06
Filed: 1924-11-20
Abstract: 243,159. Sedgwick, A. S. E. Nov. 20, 1924. Air - pressure sprayers.-An atomizer for giving sprays of variable density comprises a pair of concentric tubes 1, 2 the annular space 3 between which is connected to a regulable lateral passage 8 in a T-piece 11 through which air is supplied. The lower end of the annular spaces is closed by a conical collar 9 through which the inner liquid tube 1 passes, the combined tubes being held in the T-piece by means of a flared nut 12. One limb of the T-piece comprises a nipple 15 con nected to an air supply; the opposite one contains the air passage 8 regulated by a screw 19, and the third limb 11 forms with the tubes 1 an annular passage through which air passes to exert pressure to force liquid up the tube 1.
Patent GB-155434-A (GB)
Title: Improvements in regulating switches of the multiple-contact type
IPC: H01C10/40
Filed: 1919-11-11
Abstract: 155,434. Mansell, M. Nov. 11, 1919. Regulating switches. - Resistance-varying or other multiple contact switches of the type having a movable contact or brush 7 mounted on a sliding screw threaded carriage 6 are insured against jamming against the ends of the frame 2 by finishing off the screw thread 9 with closed circular grooves 10, slightly wider than the grooves of the thread, and providing springs 12 to return the carriage into engagement with the thread when the operating handle is turned back. The invention is specially applicable to sets of switches mounted side by side and actuated from a single shaft through gearing which can be thrown in or out as required.