baber/WOPTO huggingface dataset:
Patent GB-293936-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K17/28
Filed: 1927-05-11
Abstract: 293,936. British Thomson-Houston Co., Ltd., and Maggs, A. H. May 11, 1927. Alternating-current commutator machines.-A compensated induction motor or other machine has on the stator primary windings and compensating windings which are connected by means of adjustable brushes on the stator, equivalent to a fixed commutator, to a secondary winding on the rotor through a segmental collector ring equivalent to rotating brushes. The secondary windings may also have slip-rings for the insertion of .an external resistance between the phases. Fig. 1 shows the windings for a 2-pole machine in which the stator carries the primary and compensating windings 10, 11, usually separate, as shown, although they may be combined, with tappings 13 to an adjustable fixed " commutator." The taps 13 are preferably high resistance elements, and the " commutator," as shown in Fig. 3, consists of brush rows 14 on a rocker. These bear on a collector 16 of ordinary commutator construction mounted on the rotor and comprising segments 17, Fig. 1, connected to the secondary phase terminals. The segments are separated by segments 18 of insulating material or by idle metal segments. The other ends of the rotor phases 12 are connected to slip-rings 20 for the insertion of starting or speed-regulating resistances. Movement of the brush rocker controls the power-factor of the machine. The connections between the compensating and secondary windings are shown in Fig. 2 for an 8-pole machine in which the phase terminal segments 17 are separated by idle segments 18. The segments 17 are connected to bus-rings 21, 22, 23 and each one is flanked by segments 17<1> connected in sequence to the bus-rings through resistances 19 to assist commutation. The number of segments 17 equals the product of the numbers of secondary pole-pairs and phases. The other ends of the secondary windings 12 may be short-circuited or connected to slip-rings, as shown. The total number of brushes may be the same as or a multiple of the number of segments per pole-pair of the fixed commutator equivalent.
Patent GB-1277813-A (GB)
Title: Improvements relating to the processing of canned foods and other perishable products
Inventor: YOUNG PETER RICHARD GRAHAM
IPC: B65B25/00
Filed: 1969-03-11
Abstract: 1277813 Preserving food P R G YOUNG 6 March 1970 [11 March 1969] 12674/69 Heading A2D A method of preserving food comprises sealing a first mass of food in a first container which container is then placed in a larger container, the first container being completely surrounded by a further mass of food which is enclosed in the second container, this container then being sealed; the containers so arranged are subjected to a source of heat and consequent elevated pressure for such time as to sterilise the first and further masses of food. The further mass of food may surround a plurality of first containers. Further, the second container may be surrounded by another mass of food itself sealed in a further container. An embodiment of the invention is shown in the figure wherein polythene sacs 1A &c. containing masses of food are sealed in container 1 which is itself positioned in an outer container 2. The container 1 is completely surrounded by a mass of food, enclosed in outer container 2.
Patent GB-932254-A (GB)
Title: Stabilized polyethylene compositions
Inventor: ADDLEBURG JOHN WILLIAM
IPC: C08K5/134
Filed: 1959-11-20
Abstract: Polyethylene is stabilized with at least one alkyl phenyl salicylate of formula <FORM:0932254/IV(a)/1> wherein R is a C8 to C15 alkyl group.  The preferred stabilizers are the dodecyl, nonyl, pentadecyl and the various octyl phenyl salicylates.  The products find application as sheet, rod, tube, pipe, filaments, film and coatings on paper, wire, metal foil, glass fibre and synthetic or natural textiles.
Patent GB-1353798-A (GB)
Title: Amplitude range splitter for an analyser of particle-produced pulses
IPC: H03G3/20
Filed: 1971-05-03
Abstract: 1353798 Setting pulses to a given amplitude range; gain control COULTER ELECTRONICS Ltd 3 May 1971 [4 May 1970] 12754/71 Headings H3P and H4R [Also in Division G1] In order to reduce the amplitude range of pulses to the acceptable range of a pulse processor, e.g. a Coulter Counter, the pulses are applied in parallel to a plurality of channels of different gain and one channel is automatically selected which brings the pulses into the range. As shown, the output pulses from a particle diameter or mass measurer 10 are passed to a processor 14 to a first channel including an amplifier 18 having unity gain and to a parallel channel including amplifier 20 having a gain of 200. If the input pulses exceed 50 mV the output of amplifier 20 would be excessive but a saturation detector 28 closes gate 34 and opens gate 40 so that the higher level pulses pass to the processor through the unity gain channel. The detector may also insert an attentuator in the process detector. Sample-and-hold circuits 36, 38 detect and store the peak amplitude until reset by a reset pulse at 52, which also resets the saturation detectors, ready for the next pulse. An output at 26 and 50 can provide timing and threshold information for the processor. The input pulse generator may be optical or may comprise a pair of electrodes at opposite ends of the scan of an electric field defined by a microscopic aperture and producing pulses proportional to the diameter or volume of particles. Percentile or median values may be obtained by the processor by an automatic thresholding method and the absolute amplitude may be restored in the processor if the total particle volume is to be obtained by integration.
Patent GB-562546-A (GB)
Title: Improvements in sulphonamide preparations
IPC: A61K9/14
Filed: 1942-09-10
Abstract: A sterile free flowing preparation of sulphonilamide for treatment of wounds is made by mixing 1 to 10 per cent of finely powdered zinc with the powdered drug and sterilizing by heat.  The zinc oxide in addition to rendering the product free from caking removed undesirable electrostatic properties.  The Provisional Specification mentions the use of magnesium oxide, kaolin and talc.
Patent GB-886227-A (GB)
Title: An apparatus for recording information indicative of the logarithmic decrement or the logarithmic decrement and the frequency of damped harmonic oscillations
IPC: G01R13/20
Filed: 1958-04-22
Abstract: 886,227. Frequency measurements. OLSSON, C. O. April 22, 1958, No. 12808/58. Class 37. [Also in Group XL (b)] In apparatus for recording information indicative of the logarithmic decrement and frequency of a damped oscillation, two signals each representative of the oscillation but mutually phase displaced by 90 degrees are applied respectively to two sets of deflection plates of a cathode-ray tube and measurements are performed when the C.R.T. spot, which moves in a spiral of decreasing radius as the amplitude of the signal decreases, is in an annular zone concentric with the centre of the tube screen. The damped oscillatory signal is applied via amplifier A to one set of C.R.T. deflection plates and phase-shifted 90 degrees in a network B before application to the other set of plates. A mask D, formed with a plurality of radial slots of equal length which extend outwards from a fixed distance from the mask centre, is placed between the tube screen and photo-cell E. When the spot is visible through one of the slots a pulsed signal is generated in the cell. This pulse is shaped in a trigger circuit F and recorded in a damping counter G. The logarithmic decrement is inversely proportional to the total count recorded. A predetermined one of the generated pulses opens a gate H via which the output of an oscillator J of known frequency is applied to a period counter K, a predetermined number of generated pulses later the gate is closed. From the predetermined number of generated pulses and the period count the frequency of the damped oscillation may be determined.
Patent GB-463358-A (GB)
Title: Toy firearm
IPC: A63H5/04
Filed: 1936-05-06
Abstract: 463,358. Toy pistols. MARX & CO., Ltd., L. (Marx & Co., Inc., L.) May 6, 1936, No. 12825. Addition to 438,245. [Class 132 (iii)] A toy pistol forming a modification of that described in the parent Specification, having noise-producing and spark-producing devices actuated by a spring motor, comprises a spring motor M actuating by step-up gearing an abrasive wheel 64 contacting with a flint 66 in an arm 70 and actuating, by a helical face cam 106 mounted on an intermediate motor shaft 52, a leaf spring hammer 102 which is intermittently released by the cam to strike the noise producing diaphragm 98. The sparks are emitted through an opening 22 and the noise is emitted through an opening 100 in an outwardly displaced portion 38 of the pistol casing. The rear end of the arm 70 is reduced to form a tongue 72 loosely received in an opening 74 in the top of the motor frame F and the entire top wall of the motor frame is cut away ahead of the opening 74 so that the arm 70 is freely movable which prolongs the life of the flint and enables the abrasive wheel 64 to be made coarse and inaccurate without damaging the flint. The flint arm 70 and flint 66 are removable by opening the closure member 76. The trigger T is pivoted at 114 and is normally urged upwards by a wire spring 118 and has a cam-like brake surface 116 normally contacting with a shaft 62 of the spring motor mechanism to stop the motor. The downward movement of the brake surface 116 is limited by a stop lug 124. Imitation jewels 134 are held in place by a cover plate 136, Figs. 1 and 7.
Patent GB-400683-A (GB)
Title: Improvements in or relating to dog starting apparatus
IPC: A63K3/02
Filed: 1932-05-04
Abstract: 400,683. Starting dog races. SMITH, H. M., 812, Lathrop Avenue, River Forest, Illinois, U.S.A.-(Assignee of Keen, T. A.; 4901, West Pine Street, St. Louis, Missouri, U.S.A.) May 4, 1932, No. 12867. Convention date, May 14, 1931. [Class 132 (i).] In dog-starting apparatus of the kind described in Specification 325,686, [Class 132 (i), Amusement and exercising apparatus &c.], wherein a pair of spring-biassed jaws adjustably suspended from a linear member are held about the body of the dog by releasable latching- mechanism, the jaws are carried upon depending legs of a frame which spans the dog and is adjustably carried by the linear member and held against rotation. As shown, the frame comprises a triangular member 21, adjustably suspended from the linear member 10 by a central threaded rod 22 carrying a handwheel 23 and held against rotation by side rods 24, 25. The apex of the frame carries a guide rod 29 which is adjustably clamped by a pin 75 to a boss 74 on a rearwardly-extending bracket 28 on the member 10. Legs 26, 27, depending from the frame 21<1>, support the jaws 31, 32 which are pivoted at 33, 34 and are urged apart by flat springs 39, 40 engaging bearing pins 35, 36. The jaws are formed with hooked portions 37, 38 adapted to be held by latches 45, 46. A front strap 60 is pivotally secured at one end 61 to the leg 27 and at the other end 62 is releasably connected to the leg 26 by a bolt 65 connected to the latch 45. A leather strap 29a extending between the legs 26, 27 is adapted to rest on the dog's back and is connected by a broad band 72 to a rear body strap 76 adjustably secured by apertures 77 engaging a hook member 78. The latches 45, 46 are released by a cable 17 connected to a starting-handle at the end of the member 10. A cable 17a connected to the cable 17, releases the hook member 78. Alternatively, the latches may be operated through solenoids 50. The starting-handle may also start electrical timing- mechanism. Specification 400,682 also is referred to.
Patent GB-808259-A (GB)
Title: Thiophosphoric acid esters
IPC: C07F9/165
Filed: 1957-04-23
Abstract: The invention comprises esters of formula <FORM:0808259/IV (b)/1> where R is an alkyl radical, an aryl radical which may be substituted, e.g. by halogen, nitro or alkoxy, a polycyclic radical or a heterocyclic radical, R1 is a C1-4 alkyl radical, and X is oxygen or sulphur.  They may be prepared by reacting salts of O,O-dialkyl thiol- or thionothiol-phosphoric acids with N-acyl-chloroacetamides, generally in an inert solvent such as water, alcohols and ketones, and preferably between about room temperature and 60-80 DEG  C.  Specified acyl radicals are those derived from acetic, propionic, butyric, isobutyric, valeric, phenylacetic, benzoic, o-, m-and p-chlorobenzoic, the nitrobenzoic, toluic, naphthoic, pyridinic and quinolinic acids. Examples describe the preparation by the above method of compounds in which (1) R is methyl, X is sulphur and R1 is ethyl, propyl or butyl; (2) R1 is methyl, X is sulphur and R is methyl, ethyl or propyl; (3) X is oxygen, R is methyl when R1 is methyl, ethyl or propyl, ethyl when R1 is ethyl, or propyl when R1 is ethyl; (4) R is phenyl, X is sulphur and R1 is ethyl; (5) R is phenyl, X is oxygen and R1 is ethyl; (6) R is p-chlorophenyl, X is sulphur and R1 is ethyl; (7) R is p-chlorophenyl, X is oxygen and R1 is ethyl.ALSO:Insecticidal compositions comprise thiophosphoric esters of formula <FORM:0808259/VI/1> where R is an alkyl or aryl radical which may be substituted, e.g. by halogen, nitro or alkoxy, a polycyclic radical or a heterocyclic radical, R1 is a C1-4 alkyl radical and X is O or S.  Specified R-CO- radicals are those derived from acetic, propionic, butyric, isobutyric, valeric, phenylacetic, benzoic, chlorobenzoic, nitrobenzoic, toluic, naphthoic, pyridinic and quinolinic acids.  They may be applied in concentrations from 0.001 to 1 per cent, diluted with solid or liquid carriers such as talc, chalk, bentonite, clay, water and organic solvents. Aerosols may be used or they may be applied by dusting or spraying.  In an example the compound in which R is CH3, R1 is C2H5 and X is S is dissolved in acetone and diluted to 0.01 per cent with water in the presence of an emulsifier such as a polyglycol ether of benzyl-hydroxydiphenyl.
Patent GB-806980-A (GB)
Title: A new or improved device for cleaning lenses
IPC: G02C13/00
Filed: 1956-04-28
Abstract: 806,980. Lens cleaning devices. WILEY, T. M. Feb. 22, 1957 [April 28, 1956], No. 13093/56. Class 97(1) A lens cleaning device comprises a holder having two arms which permanently extend in the same direction from a connecting portions at which they are connected together, pad members carried by these arms at or near their free ends and having cleaning faces disposed in opposed face to face relation so as to be adapted to contact opposite surfaces of a lens to be cleaned, and said face being normally urged towards or into mutual contact by the free ends or the arms being: resiliently urged relatively towards each other transverse to the lens surfaces to be cleaned, and said pad members being formed with bevelled edges which combine to form a "lead in" to facilitate introduction between the cleaning faces of an edge of a lens to be cleaned. The holder may be made of a single length of material, e.g. sheet meta' bent, as shown, into two arms 11 integrally connected by a part 12 and carrying button-like pad members 14 at their free ends 13. Each pad member is fastened to its associated arm 11 by a press stud and comprises a backing member 19 to the periphery of which is secured a cover portion 20 forming a lens cleansing face and having a bevelled edge 27. Between the cover 20 and a packing disc 23 is a resilient filling as of sponge rubber. There may be provided an enclosure member adapted partially or wholly to enclose the pad members when not in use.
Patent GB-1515270-A (GB)
Title: Mower-conditioners
IPC: A01D43/10
Filed: 1977-03-29
Abstract: 1515270 Mower conditioners CLAYSON NV 29 March 1977 13116/77 Heading A1F A mower-conditioner comprises a mower having a plurality of drum type cutter units and rotary crop conditioning and spreading means mounted behind the mower so as to operate on the cut crop the cutter drums being arranged in pairs with corresponding pairs of crop conditioning and spreading means disposed behind respective pairs of drums and rotatable about generally upright axes. The mower is described in Specification 1515268 and 1515269. The conditioner 128 comprises beaters 130, one beater being located behind each cutter unit 10. Each beater comprises an upright shaft 131 and rake tines 132. The shaft 131 has its lower end supported in bearings 135 in a supporting plate 136 and its upper end coupled to an intermediate shaft 137 by a universal joint 138. The shaft 137 is supported in bearings 140 in a supporting plate 139. Each beater is driven by a chain 142 driven from the shaft 11 of its corresponding cutter unit 10. Neighbouring beaters 130 are driven in opposite directions while each beater is driven in the same direction to that of its corresponding cutter unit 10. The annular flanges 13 and/or the drums 14 of the cutter units 10 may be provided with ribs to assist the feeding of the cut crops to the conditioner 128. Stationary guide rakes (not shown) are mounted behind the conditioner to ensure that the crops are discharged onto the ground in a clean windrow.
Patent GB-258818-A (GB)
Title: Improvements in type wheels for typewriters
IPC: B41J1/00
Filed: 1926-05-25
Abstract: 258,818. Gundka-Werk Vereinigte Blechspielwaren-Fabriken Ges., and Muchajer, P. May 25, 1926. No Patent granted (Sealing fee not paid). Type-wheels, -- A type-wheel for a typewriter is formed by bending round a core a metal type-bar 1 formed between the types 3 and in the top or bot tom face with nicks 2 extending across the type-bar. The type-bar bends at the nicks into polygonal form, the types being disposed on the flats.
Patent GB-184275-A (GB)
Title: Improvements in seats for springs of motor cars and other vehicles
IPC: B60G11/113
Filed: 1921-05-10
Abstract: 184,275. Fairbanks, R. N. May 10, 1921. Axles and axle structures.-Relates to rear axle conversion fittings for replacing a transverse suspension spring by a pair of longitudinal side-springs. As shown in Fig. 2, the seating blocks e for the springs are suspended from perch-bolts f in the brake plates b, and truss rods r, @ are secured to plates p suspended from the bolts f and separated from the plates b by brake-drum closure-plates n. The rods r provided with heads q are passed through apertures in the plates p and connected by screw couplings s to rods t which engage in notches in the flanges v of the differential gear casing u. In the modification shown in Fig. 5, the rods r are passed through apertures in the seating-blocks e, the heads of the rods. or nuts q<1> thereon, being accommodated in recesses e<2> in the blocks.
Patent GB-127581-A (GB)
Title: Improvements in Propeller Blades.
Inventor: GARDE HANS GEORG
IPC: B63H1/26
Filed: 1919-05-27
Abstract: 127,581. Garde, H. G. May 27, 1918, [Convention date]. Screw propellers.-The suction surface of a propeller blade is made uneven in order to increase the formation of vortices, by forming it with one or more shoulders b. The blade thickens to form the shoulder in the direction of the revolution of the blade, each shoulder extending lengthways of the blade and being highest at the middle and tapering towards and terminating at a given distance from the hub and tip respectively.
Patent GB-1354741-A (GB)
Title: Tunnel or shaft lining segment and a method of lining tunnels,shafts
IPC: E21D11/10
Filed: 1971-05-05
Abstract: 1354741 Tunnels &c COMMERCIAL SHEARING & STAMPING CO 5 May 1971 [28 Dec 1970] 13349/71 Heading B1F A tunnel lining is formed by passing a plurality of major arcuate lining segments 10 of concrete, whose diameters have been reduced by compression, through the assembled lining 14 to a position behind a tunnelling shield 20, and then expanding each segment and assembling it with one or more key segments such as 23, 24 to form an annular lining section. The segments 10 may be of reinforced concrete, and are passed into position by cables 18 connected to a clamp 17 on the rearmost member 10 and passing over sheaves 19, 21 to a double drum winch 22. Alternatively hydraulic jacks may be used. Power lines 25 and ventilation &c ducting 28, 30 is carried by a frame 26 arranged so as not to foul the members 10 as they are inserted. The members 10 are maintained in the contracted position cable 16 until they are inserted in the lining 14. Each segment 10 has grouting holes 31 and preferably subtends an angle of not less than 230‹. The key segment (5) may abut with, or may overlap inside or outside the segment 10, Figs. 13, 14 (not shown). The joints between annular sections may be plane edged, or of the tongue and groove type, and means for maintaining the edges in register are disclosed in Figs. 10-16 (not shown). The ends of the member 10 may extend beneath a track 27 for muck cars as it is passed through the lining.
Patent GB-185798-A (GB)
Title: Improvements in or relating to the filtration of turbid water or liquid
IPC: C02F1/00
Filed: 1921-05-11
Abstract: 185,798. Pennell, R. H. L. May 11, 1921. Mixing fluids in flow.-In apparatus for supplying alum or other reagent solution to a liquid to be purified, the solution is passed from a container 42 through a nozzle with a circular orifice 43 at the end of a flexible tube 44 connected to the side of the vessel 42 near to the bottom. The nozzle is carried by a cord passing round pulleys 45 and its height is regulated by a float 47 in the vessel 42 and by a jockey pulley 46 connected to a float 48 in a well 3, up which the liquid to be treated flows. As the water leaves the well 3 through a circular orifice the liquid level in the well is a measure of the rate of flow and the reagent is consequently supplied proportionately, the float 47 providing the adjustment of the nozzle 43 required on account of the variation of liquid level in the vessel 42.
Patent GB-495752-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J21/12
Filed: 1938-05-05
Abstract: 495,752. Thermionic valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. May 5,1938, No. 13454. Convention date, May 8, 1937. Drawings to Specification. [Class 39 (i)] In a valve in which the grid nearest the cathode is of variable pitch, the mean electronemitting power of the cathode is reduced opposite the widest apertures in the grid. The cathode - emitting power can be varied by leaving part of the cathode uncoated, by coating parts with non-emitting material, or with materials having differing emitting powers, e.g. the main surface could be coated with a mixture of barium carbonate and strontium carbonate whilst the points opposite the widest apertures could be coated with only strontium carbonate.
Patent GB-520571-A (GB)
Title: Improvements in pyrophoric lighters for cigarettes and the like
IPC: F23Q2/08
Filed: 1939-05-05
Abstract: 520,571. Frictional pocket igniters. PEARLMAN, B., and COLLINS, J. H, May 5, 1939, No. 13536. [Class 75 (iii)] The member 2 carrying the extinguisher 1 is pivoted at 3 to the part 5 and is adapted to be turned by the lever arm 11 when this is manually depressed, the arm 11 having a bifurcated end joined to the member 2 by pins 16. As 11 is depressed the spring 20 is extended and when pressure is released restores the normal position. The spring is connected to the fixed base at one end 14 and at the other to the lever 13 to which the lever 11 is pivoted at 12.
Patent GB-1474325-A (GB)
Title: Pressure roll fusing system
IPC: G03G15/20
Filed: 1975-04-03
Abstract: 1474325 Applying oil to roller XEROX CORP 3 April 1975 [5 April 1974] 13627/75 Heading B2L [Also in Division F2] In a xerographic copying machine the backing roller 18 is stiffened at its ends by inserts 92 and the fuser roller 16 is heated by a quartz lamp 24 and charged with silicone oil by an applicator pad 48 which is pressed by a spring and supplied with oil from a pan 50 by a motor driven applicator roll 52. The rollers may be covered with layers 22, 34 of P.T.F.E.