baber/WOPTO huggingface dataset:
Patent GB-535301-A (GB)
Title: Improvement in pumps
IPC: F02M59/48
Filed: 1939-10-03
Abstract: 535,301. Fuel-injection pumps. BENDIX AVIATION CORPORATION. Oct. 3, 1939, No. 27119. Convention date, Oct. 6, 1938. [Class 102(i)] In a pump having axially spaced intake and byepass ports, in the casing, turbulence is reduced by providing the casing with circumferential grooves which communicate with the ports and fuel-inlet at circumferentially spaced points. Alternatively, only one of the grooves communicates with the fuel-inlet. To reduce erosion, the grooves may be formed in a liner of stainless steel or other hard metal. In the pump shown in the Figure a plunger 13 reciprocates in a cylinder 7 which is secured in a casing 5 and is surmounted by a delivery-valve 31. The cylinder is formed with intake and byepass ports 11, 12 and the plunger is formed with axial and radial bores 14, 15 communicating with helical, cut-off and pressure-balancing grooves 16, 17. A liner 39 in the casing is formed with a rib 45 to provide grooves 46, 47 which communicate with the fuel-inlet 43. The rib embraces the cylinder over half the circumference and then tapers off. A hardened-steel screw 49 having a tip 50 may be arranged opposite the port 12. When the plunger rises, the port 11 is cut-off and fuel is delivered through the valve 31 until the groove 16 overlaps the port 12. Thereupon fuel is byepassed through the port 12 and strikes the liner 39 and screw-tip 50, the rib 45 preventing turbulence from being transmitted to the fuel in the supply-groove 46. In an alternative arrangement, the rib 45 surrounds the cylinder and cuts off the groove 47 from the fuel-inlet, and the fuel is byepassed through a fitting which replaces the screw 49. To regulate delivery, the plunger is angularly adjusted by means of a rack 20 and a co-operating sleeve 18 which engages a spline 23 on the plunger. The valve 31 is mounted in an adapter 30 secured by a nut 32.
Patent GB-337885-A (GB)
Title: Improvements in means for silencing and purifying the air supply to carburettors
IPC: F02M35/14
Filed: 1929-09-06
Abstract: 337,885. Boysen, F. A. Sept. 6, 1929. Spray carburettors.-The air supply to a carburettor is silenced, and dust is separated therefrom, by a device comprising a spherical casing 5 Laving air inlets at opposite sides fitted with fixed guide blades 16, which give the air a whirling motion, so that dust is separated by centrifugal action and escapes through slots 9 in the casing, the air then passing through openings 10, 11 in partitions 7, 8 into a cylindrical casing 12 formed with opposite-handed slots 13, leading to a spiral baffle 14 opening into the inlet 15 of the carburettor.
Patent GB-190298-A (GB)
Title: Improvements in appliances for board games
IPC: A63F3/02
Filed: 1921-10-13
Abstract: 190,298. Barrett, T. P. Oct. 13, 1921. Board games.-Appliances for playing a game comprise two sets of pieces 2 and a board 1 divided into a number of spaces. The spaces 7 on which the pieces are originally set up are of a different characterization from those spaces 8 which are originally left vacant, and are arranged in groups spaced to provide playing spaces between them, each group being aligned in a direction across the board from the side nearer the player. Additional spaces 9 are provided for the setting up of " leader " pieces 3. The moves are similar to those made in the game of draughts.
Patent GB-1396562-A (GB)
Title: Benzopyran derivatives and process for their preparation
IPC: H01H43/10
Filed: 1972-06-12
Abstract: 1396562 Cycloalkabenzopyran derivatives SCHERING AG 12 June 1972 [11 June 1971 30 Nov 1971] 27260/72 Heading C2C Novel compounds of the formula including their optical antipodes and racemates (wherein R 1 , R 2  and R 3  are each C 1-4  alkyl, n is 1 or 2, -A-B- is and X is a free, esterified or etherified hydroxyl group and Y is H, or X and Y together are =O) are prepared by cyclization of compounds of the formula in the presence of an acidic catalyst followed, when required, by hydrogenation of the resulting products wherein -A-B- has the second meaning stated above to give products wherein -A-B- has the first meaning stated above, and/or reduction of products wherein X+Y is oxo to those wherein X is OH and Y is H, which may subsequently be esterified or etherified. Compounds of the second general formula above are prepared as follows Compounds (VI) may also be prepared directly from compounds (III) by reaction with A specific by-product in a reaction of this type is 1# - tert. - butoxy - 7a# - methyl - 3 - (3<SP>1</SP> - ketobutyl)-5,6,7,7a-tetrahydroindan-5-one. The novel compounds wherein -A-B- is may be converted into the corresponding des-A- 17# - hydroxy - 13 - alkyl - #<SP>9</SP> - gonen - 5 - ones and D-homo-homologues thereof by heating with hydrochloric acid in dioxan and, if necessary, hydrolysing an esterified or etherified 17#- hydroxy group.
Patent GB-431543-A (GB)
Title: Improvements in stop and discharge valves
IPC: E03C1/23
Filed: 1934-09-25
Abstract: 431,543. Waste valves for lavatory basins &c. CORNELL, E. S., 17, Campbell Lane, Larchmont, New York, U.S.A. Sept. 25, 1934, No. 27489. [Class 135] A waste valve particularly for use with lavatory basins, tubs, &c., comprises a rotatable valve member 17 of generally spherical shape with a passageway therethrough so that in one position of the valve 17 the passageway registers with an annular valve seat 18<a> to allow fluid to flow therethrough and in another position an imperforate part 17<a> of the member 17 bears against the seating 18<a> to stop the flow of fluid, the member 17 being displaceable towards and away from the seat 18<a> and resiliently urged towards the seat. The seat 18<a> is formed on a part 10<b> shaped to the opening in the basin 13 and screwed into the valve-housing proper 10<a> which is secured to the basin 13 by a nut 14. Two elongated holes 20 in either the part 10<b> or the part 10<a> or a ring clamped between them receive the symmetrically-disposed trunnions 19 of the valve member 17. A ring 21<a> of spring steel is clamped between the parts 10<a>, 10<b> and has curved depending tongues 21 which engage the surface of the member 17 to press it towards the seat 18<a> and also serve to hold it frictionally in any position to which it has been rotated. The imperforate part 17<a> of the member 17 is substantially flat with a spherical annular periphery 17b to engage the valve seat 18<a> The valve member 17 is operated by a fingerknob adjustably attached to a flexible connector 26 fixed to a slidable rod 27 carrying an arm 29 slotted at its upper end 30 to engage a pin 31 on the valve member 17. Specification 12056/15, [Class 135], is referred to.
Patent GB-1037938-A (GB)
Title: Improvements in and relating to television scanning devices
IPC: H04N5/253
Filed: 1964-07-03
Abstract: 1,037,938. Television. FERNSEH G.m.b.H. July 3, 1964 [July 5, 1963], No. 27566/64. Heading H4F. The level of signals produced by a television camera 4 scanning a transparency or film 3 is varied so as to compensate for variation o picture contrast by a control system which varies the intensity of the source of illumination 2, the system comprising: (a) a rectifier 7 for the camera output signals, (b) a control voltage generator 8 and a control stage 9, the excursion of the control voltage substantially exceeding the control range of stage 9, (c) damping means including capacitors 11 and 13 in the connection between 8 and 9, and (d) a biased diode 16 for limiting to a potential equal to one limiting value of the control range of stage 9. In a second embodiment, Fig. 2 (not shown), a second biased diode is provided for limiting at the other limiting value of the control range. Stage 9 may be a magnetic amplifier or a controlled rectifier. As an alternative to control of the lamp filament current, an adjustable diaphragm or variable opacity filter may be utilized. The invention is also said to be of use where the picture is scanned by a flying-spot scanner, the control system being employed to control the gain of the electron multiplier of the associated photo-electric cell.
Patent GB-1187454-A (GB)
Title: Improvements in or relating to Alarm Clock Mechanisms
IPC: G04B23/10
Filed: 1967-06-15
Abstract: 1,187,454. Alarm clocks. GEBR. JUNGHANS G.m.b.H. June 15, 1967 June 21, 1966], No.27639/67. Heading G3T. An alarm clock mechanism comprises a control lever 31 on which is pivoted a pawl 32, the pawl co-operating with a ratchet wheel 24 rotated by the clock timing mechanism and the centre of gravity of the pawl being beyond the line joining the pivoting point 30 of the control lever and the pivoting point 33 of the pawl. Initially a projection 36b on a control disc 36 engages a stop 37 fixed to the clock plate 10 and stops 31a, 10A pivot the pawl of the spring biased lever out of engagement with the wheel 24. At the alarm time, alarm pallets 27 co-operate with an alarm escape wheel 26 to oscillate a hammer 29a on which a cam 29b is provided. The cam 29b strikes an arm 36a of the control disc and therefore prevents the hammer striking a bell 35. The counter clockwise oscillation of the hammer causes the cam 29b to strike an arm 31d of the lever, the resultant rotation of which allows a tooth 32b of the pawl to pivot into engagement with the teeth of the ratchet wheel 24. The oscillation frequency of the hammer is therefore reduced due to the controlling oscillation of the lever 31 by the pawl and ratchet wheel arrangement. As the alarm spring runs down, the disc 36 rotates clockwise until the arm 36a allows the hammer to strike the bell, the pawl still engaging the ratchet wheel so that the hammer oscillation frequency is diminished. Further rotation of the disc 36 causes an edge 36c of the disc to engage an arm 31e of the lever thus rotating the lever until a projection 31f abuts the clock plate 10. In this position, gravity pivots the pawl out of engagement with the wheel 24 so that the hammer strikes the bell at its normal frequency.
Patent GB-1509212-A (GB)
Title: Compatible am stereophonic transmission system
IPC: H04H20/49
Filed: 1975-07-01
Abstract: 1509212 Stereophonic broadcasting L R KAHN 1 July 1975 [10 July 1974] 27726/75 Heading H4R In a compatible amplitude modulated stereophonic broadcasting system a carrier wave is amplitude modulated with the sum of the stereophonically related signals and is phase modulated with a composite stereo difference signal formed of the fundamental difference signal together with a difference signal developed from the frequency doubled stereo related signals, the frequency doubled component being maintained in substantially square law relation relative the amplitude of the fundamental difference signal and about 13% of the fundamental signal amplitude at full stereo modulation. As described with respect to Fig. 1 L and R stereophonically related signals are applied to an adding network 12 to form a sum signal which, after shifting in phase by an amount #(f) -45 degrees provides a signal to amplitude modulate a transmitter carrier. In addition the L and R signals are fed through respective 5 kHz low pass filters to a subtractor 28 to provide a fundamental difference signal 30 which is passed through a network 32 to provide a phase shift of #(f) +45 degrees, i.e. +90 degrees relative the sum signal at 18. The filtered L and R signals are also fed via networks 38 and 40 having a phase shift of #(f)+0 to frequency doublers 46 and 48 before application to subtractor 54 to derive a frequency doubled difference signal 56. The signal 56 is applied through a variable gain amplifier controlled in accordance with the level of the fundamental difference signal so that the level of the signal 68 at the output of amplifier 58 is proportional to the square of the fundamental difference signal amplitude. The fundamental difference signal and the frequency doubled difference signal are combined at 36, the delay equalized at 72, and the combined signal phase modulates a carrier signal from oscillator 78 in modulator 76 before frequency multiplying to the appropriate broadcast frequency and amplitude modulating with the sum signal for broadcasting. A 15 Hz stereo indicator signal can be added either to the amplitude modulating signal or as a phase modulating signal. The resulting signal has the stereophonically related signals appearing respectively in the upper and lower first order sidebands.
Patent GB-324310-A (GB)
Title: Improvements in braking mechanism
IPC: B60T11/04
Filed: 1929-04-23
Abstract: 324,310. Girling, A. H. G. April 23, 1929. Divided on 323,183. Force-transmitting mechanism.-A control-effort balancing device for use in connection with braking mechanism comprises a shaft B, Fig. 1, mounted on a pivot A and surrounded by a sleeve D which is provided at the end adjacent the pivot A with a primary lever E to which the effort is applied, and at the other end with a pair of secondary levers F1, extending in opposite directions, through which the effort is transmitted to the brake mechanism. A stop, e.g. as shown in broken lines, may extend from some fixed part to limit the swing of the shaft about the pivot. In modifications, either the primary lever or one of the secondary levers is situated at a point intermediate the ends of the sleeve and may be adjustable thereof. In the form shown in Fig. 3, the sleeve D carrying the primary lever E and secondary levers F1, F2 swings about the pivot A, the effort being applied to the lever E through a brake pedal J and a set screw which can be placed in any one of three holes P1, P2, P3 provided in the pedal. A slot in the supporting bracket K surrounds the sleeve D so that if a part connected to one pair of the brakes breaks, the sleeve D will abut against the end of the slot and continue to operate the remaining pair. When applied to a four wheel brake system, three devices as described above are employed, the first being fixed to the chassis and operated by the brake pedal and the secondary levers thereof being respectively connected to the primary levers of the second and third devices; the second and third devices are respectively mounted on the front and rear axles of the vehicle, the secondary levers being connected to the brakes by rods which are approximately parallel to the axles.
Patent GB-1378127-A (GB)
Title: Scopolamine derivatives
IPC: C07D451/10
Filed: 1973-06-12
Abstract: 1378127 Scopolamine derivatives EISAI CO Ltd 12 June 1973 [12 June 1972] 27895/73 Heading C2C The invention comprises scopolamine derivatives of the general formula wherein R represents an alkyl group and X represents a halogen atom. The compounds of the invention may be prepared by reacting scopolamine base with a p-alkoxybenzyl halide of formula wherein R and X are as above. The compounds may be used as pharmaceuticals.
Patent GB-616597-A (GB)
Title: Improvements in portable electric fires or radiators
IPC: F24C7/06
Filed: 1946-09-18
Abstract: 616,597. Electric fires. HASSETT & HARPER, Ltd., and HASSETT, J.B. Sept. 18, 1946, No. 27941. [Class 39 (iii)] A portable electric fire comprises a casing 1 closed at the front by a reflector 5 and at the back by a panel 21 carrying all the electric equipment, heating elements 18 being supported in front of the reflector by rigid conductors 14 carried by the back plate and extending through clearance holes 13 in the reflector. The casing comprises opposite top and bottom sheet metal components 2 and side components 3 of approximately trough section and spot welded together. The reflector comprises a main trough shaped section 5 welded to flanged side segments 6. The panel 21 is removably secured to the casing by two screws 31 carries a switch 23, a handle 24 and has ventilation holes 33. A guard for the elements may comprise rods 7 with cranked and screw-threaded ends which engage holes in the reflector and casing to secure these together. According to the Provisional Specification the front of the reflector may be provided with a grille composed of spaced glass rods or tubes.
Patent GB-390740-A (GB)
Title: Improvements in electric incandescent lamps
IPC: H01K1/20
Filed: 1932-10-07
Abstract: In electric incandescent lamps of the gasfilled type, the parts of the leading-in wires inside the envelope, and other parts of the internal structure, such as auxiliary mirrors or screens and their supports, consist of a copper-beryllium alloy, to which 1-10 per cent of manganese may be added.  In an example, the alloy consists of 95.5 per cent copper, 3 per cent of manganese, and 1.5 per cent of beryllium.
Patent GB-519589-A (GB)
Title: Improvements in or relating to electrical indicating and/or recording and/or controlling apparatus
IPC: G01D9/02
Filed: 1938-09-26
Abstract: 519,589. Mechanical relay devices. ELECTROFLO METERS CO., Ltd., and COULING, C. W. Sept.'26, 1938, No. 27983. [Class 40 (i)] In a mechanical relay system of the type in which the position of a primary member such as the needle of a galvanometer in a Wheatstonebridge circuit is periodically tested by a feeler member which controls a freely movable secondary member which is then restored to its normal position by power means which at the same time re-balances the bridge, the secondary member is given a displacement which is a constant proportion of the deflection of the primary member for small deflections but for large deflections is greater than the corresponding proportionate displacement. As shown the needle a is periodically clamped and its position is investigated by a scissors member e, f which by means of a pin i moves a disc h to an extent depending on the deflection in the case of small deflections. In the case of large deflections however a spring q comes into action and gives an additional movement to the disc h. In all cases the disc after being moved is clutched to the slider of the balancing resistance and to a recording or other controlled device and restored to its normal position by a periodically raised arm k, a nose on which engages rollers r on the disc. Other means for giving the inreased movement to the disc are described in the Provisional Specification.
Patent GB-1201032-A (GB)
Title: Improvements in or relating to pumping apparatus and to the use of such apparatus in a method of pressure testing vessels.
Inventor: HILL WALTER CLIFFORD
IPC: F04D13/12
Filed: 1966-06-23
Abstract: 1,201,032. Pressure testing. W.C. HILL. July 21, 1967 [June 23, 1966], No.28069/66. Heading G1S. [Also in Division F1] An apparatus for supplying liquid under pressure, especially for pressure testing vessels, comprises a low pressure conduit 28 connected to the mains or to the outlet of a low-pressure high displacement centrifugal pump 10, and a high-pressure conduit 32 pressurized by a highpressure, low displacement swash plate pump 14, the conduits 28, 32 being connected to a common discharge conduit 38 having a non-return valve 30 whereby a vessel to be tested connected to the conduit 38 by a coupling 40 is rapidly filled with liquid from both pumps until pressure builds up to close the non-return valve 30 and thus cut off the low-pressure supply. A non-return valve 34 is provided in the high-pressure conduit 32 to prevent return flow through the pump 14. Both pumps are driven by a common petrol or diesel engine or by an air or electric motor 8, mounted on a mobile baseplate 2 which also carries a reservoir (6), Fig.2 (not shown) having a pipe 22 connected to the suction pipes 18, 20 of the pumps. If the capacity of the vessel is greater than the reservoir, liquid from the mains supply can be connected to the reservoir through a coupling 54. The maximum pressure supplied to the test vessel is determined by the setting of a pressure gauge 48 adapted to actuate a relay 50 to stop the driving motor 8. Pressure is released from the vessel by opening an adjustable pressure relief valve 44 having a return line 76 connected to the reservoir. To empty the vessel the connection from the vessel to the coupling 40 is transferred to a coupling 55 connected to the suction pipes 18, 20. A vacuum pump 64 is provided for evacuating the vessel prior to pressure testing. It is stated that the apparatus may be used to drive an hydraulic ram.
Patent GB-1132488-A (GB)
Title: Improvements in or relating to bandage fasteners
IPC: A61F15/00
Filed: 1966-06-23
Abstract: 1,132,488. Bandages. H. BRAUN and F. BRAUN [trading as KARL OTTO BRAUN K.G.]. 23 June, 1966 [24 June, 1965], No. 28163/66. Heading A5R. [Also in Division E2] A fastener for a bandage comprises a web portion 72 with a clamping arm 70, 71 at each of its ends, there being a spike 73 extending from the web portion at a point intermediate its ends, the clamping arms being arranged to grip resiliently on to a bandage material 80 to affix the fastener and the spike being longer than the clamping arms. As shown, a bandage 80, which may be of elastic material, is formed at the edge of one of its ends with a cut-out portion 81, the fastener device with the spike 73 being secured to the bandage so that the spike coincides with the cut-out and so that it may be used to secure the end of the bandage to a layer of bandage wound beneath. The fastener is of resilient steel wire, or plastics covered wire, and the arms are formed with hooks to hold the fastener in position. In an alternative embodiment (Figure 3, not shown), the fastener is stamped from steel plate, bent to double thickness and fitted over the end of the bandage. The fastener may be formed entirely of a plastics material and several fasteners may be provided on the end of the bandage.
Patent GB-401866-A (GB)
Title: Improvements in soap and the preparation thereof
IPC: C11D9/00
Filed: 1932-10-10
Abstract: Soap contains silk, sericine, or silk fibroin which has been treated with a solvent e.g. caustic alkali, liquid ammonia, or liquid sulphur dioxide, oleic or other fatty acid may be added. For example, 125 lb. of silk cocoons, culture, or spinning or weaving waste, freed or not from gum, is stirred for 10-15 mins. with 600 lb. of 38-40 DEG  B<\>e caustic soda solution, and the solution stirred into 2,000 lb. of boiling soap; 120 lb. of cocinic acid (from coconut oil) may be added.  Or the silk or fibroin may be dissolved in liquid ammonia or liquid sulphur dioxide, the ammonia or dioxide evaporated off, and the soluble mass remaining added to soap.  Or the solution in liquid ammonia may be treated with water to form ammonium hydrate which is converted into soap in known manner.  The soaps are especially suited for washing the skin, hair, and silk fabrics.
Patent GB-817524-A (GB)
Title: Improvements relating to paper clips or files
Inventor: GOODE JOHN HENRY
IPC: B42F9/00
Filed: 1956-09-15
Abstract: 817,524. Filing papers. HARE & SON Ltd., C. H. Sept. 9, 1957 [Sept. 15, 1956], No. 28268/56. Class 146(1) [Also in Group XXV] A paper file comprises an elongated sheet metal plate a suitable for riveting or otherwise attaching as through holes a<SP>1</SP> to a back board b having towards one end and along one longitudinal edge an integral upturned perforated ear a<SP>2</SP> and at the other end along the same edge an upturned integral hook member a<SP>3</SP> pteferably facing outwardly, and a wire fastening frame c hooked at c<SP>1</SP> through a perforated ear a<SP>2</SP> and with a downwardly cranked U-shaped centre part c<SP>2</SP>, c c', which may bear upon the plate a to clamp papers d, and a terminal portion c' to be brought beneath the upturned hook a<SP>3</SP>. Between the ear a<SP>2</SP> and hook a<SP>3</SP>, an upwardly directed flange a<SP>4</SP> is provided for treating the edges of the papers d. The terminal portion c' may be cranked slightly upwardly and has t turned over holding part c<SP>5</SP>.