baber/WOPTO huggingface dataset:
Patent GB-246344-A (GB)
Title: Lubricator for wheel flanges
IPC: B61K3/02
Filed: 1925-03-23
Abstract: 246,344. Jack, J. H., (Vincent, J. R.). March 23, 1925. Actuating by vehicle wheels; assembling parts; single-acting bucket pumps.-A device for lubricating the flange of a vehicle wheel comprises an oil chamber 1, Figs. 1, 2, provided with a downwardly inclined tubular nozzle 14 in which is arranged a plunger 3, the outer end of which is in contact with the inner surface of the wheel flange. The casing 1 is connected by a pipe 7 to an oil container 2 and is secured to the vehicle frame by a clamp 8. The plunger comprises a hollow part 30 provided with a collar 28 and a circumferentially grooved part 32. Fitting in a recess 21 in the nozzle 14 against a packing ring is a member 33 having a slotted part 25, extending into the chamber 1 and surrounded by a strainer 26, and a tubular part 27 fitting in the nozzle 14. The part 32 slides in the member 33, while the collar 28 slides in the part 27. Interposed between the part 27 and an enlarged portion of the bore of the nozzle 14 is a sleeve 16 pressed outward by a spring 17, the outward movement being limited by a pin 37 engaging a slot 38. The outward movement of the plunger 3 is limited by a pin 36. The member 33 is removable through an opening 23 normally closed by a plug 24. As the plunger moves outward due to gravity when relative movement occurs between the casing 1 and the wheel during travel of the vehicle, oil is carried by the grooves 32 from the chamber 1 into the cylinder 27, and as the plunger moves inwards, the collar 28 forces oil from the cylinder 27 through holes 31 into the hollow portion 30 of the plunger, whence it passes to the wheel flange. The distance between the grooves 32 is less than the length of the part 33, so that oil cannot pass into the cylinder 27 when the plunger is stationary. If the relative movement between the casing 1 and the wheel is considerable, the flange depresses the sleeve 16, compressing air in the space at the inner end of the sleeve. This air, in forcing its way out between the members 16, 27, removes accumulated dirt &c. In the modification shown in Fig. 3, the plunger is in two parts 39, 40 connected by a bell crank lever 41 pivoted on a pin 42 in a casing 43' and connected to the sections 39, 40 by pins 44, 45 engaging slotted holes 46, 47. The section 40 is similar to the part 32, Fig. 1, and serves to carry oil into the chamber 43 during each outward movement of the part 39. The latter is hollow throughout its length and has a collar 51 slidable in a sleeve 49 secured to the casing. During each inward movement of the part 39, the collar 51 causes oil to be discharged through the part to the wheel flange. A spring-pressed sleeve 54 is arranged between the sleeve 49 and an outer sleeve 53 secured to the sleeve 49. The device is mounted on the vehicle frame by means of a socket 60 below the casing 43.
Patent GB-1430081-A (GB)
Title: Electro-mechanical band-pass filters
IPC: H03H9/56
Filed: 1972-02-21
Abstract: 1430081 Crystal filters GENERAL ELECTRIC CO Ltd 20 March 1973 [21 Feb 1972] 7874/72 Heading H3U In a multi-resonator thickness shear mode bandpass crystal filter exhibiting mass loading, extra mass loading is provided to remove an unwanted stop-band response, either by thickening the outer parts of the input and output electrodes relative to the inner parts, or by providing extra coatings 7, on one, or both, major surfaces of the crystal slab 1. As shown, AT cut quartz piezo slab 1, mounted, by means of epoxy adhesive 10 more lossy than the slab, over recess 9 in insulating support frame 8, supports resonators with electrode pairs 2, 3, 4, 5, each resonator exhibiting mass loading, coupling between adjacent resonators taking place via evanescent trapped modes. Both electrodes cf each of pairs 3, 4, and the lower electrodes of input, resp., output pairs 2, 5 are earthed by connections to inter-electrode capacitance reducing conductive coating 13, through which terminal pins 12, coupled to the resonators via strips, 11, on frame 8, and 6 on slab 1, pass. To reduce the undesired stop-band resonance due to the first antisymmetric overtone of the end resonators the extra thickening on their outer halves is provided. The lesser, inner thickness may equal the uniform thickness of resonators 3, 4, although, as the extra thickness is laid down empirically, while the filter stop-band is displayed, until the unwanted overtone is adequately reduced, some material may be deposited on pairs 3 and 4, and on the inner parts of pairs 2, 5 to keep the relation between the resonance frequencies of each resonator undisturbed, each resonator normally being resonant of the centre of the bandpass. Layers 7, also laid down empirically, reduce the stopband resonance due to the fundamental thickness shear mode resonance of the slab. Such anharmonic overtones in the stop-band as are not trapped dissipate at the edges of the slab, some trapped overtones contributing to the bandpass. A filter may comprise a plurality of slabs supporting resonators, with electrical coupling between slabs. The electrodes are of vacuum deposited gold, deposited through windows in masks for both electrodes and connecting strips.
Patent GB-808837-A (GB)
Title: Blades and blade assemblies of turbines and compressors
Inventor: HALFORD FRANK BERNARD
IPC: F01D5/18
Filed: 1955-03-17
Abstract: 808,837. Turbine and compressor blades. DE HAVILLAND ENGINE CO. Ltd. March 14, 1956 [March 17, 1955], No. 7880/55. Class 110(3). A blade for a turbine or compressor comprises an aerofoil portion B<SP>3</SP>, a root portion B<SP>1</SP> formed for engagement with a slot A<SP>1</SP> in a supporting member such as a rotor disc A, and at least one substantially straight passage for cooling or heating fluid extending through the root portion into the aerofoil portion. In a first embodiment, the blade is formed with a plurality of straight passages B<SP>2</SP> which when viewed in cross-section in planes normal to the length of the blade are distributed along the curved centre lines of the cross-sections of the blade in these planes. In Fig. 5 the blade is formed with a single straight passage E, this passage extending along the centre lines of the transverse cross-sections of the blade. The aerofoil portion B<SP>3</SP> of the blade is twisted about a longitudinal axis so that the passages B<SP>2</SP> or passage E at the root end of the aerofoil portion lie or lies on a curve different from that at any other cross-section of the aerofoil portion. The root portion B<SP>1</SP> or D<SP>1</SP> in the case of Fig. 5, is curved in cross-sections transverse to the length of the blade, the concave side of the curve being on the same side as the concavity of the aerofoil portion and the root portion is of such a width that although the passages B<SP>2</SP> or passage E do not or does not break out through its sides, a part of the aerofoil portion B<SP>3</SP> or D<SP>3</SP> when projected into the plane of the top of the root portion extends beyond the limits of the root portion B<SP>1</SP> or D<SP>1</SP> in this plane. The blade may be either from a single piece of material or from two or more pieces, for example from two pieces the contact surface of which passes through the cooling passages of the blade. The root portion of the blade may taper when viewed in cross-sectional planes transverse to the length of the blade. Passages A<SP>3</SP> in Fig. 2 and F<SP>2</SP> in Fig. 5 are provided in the rotor disc at the bottom of the blade-mounting slot for the supply of cooling or heating fluid. Alternatively two passages may be provided one for the supply and one for the discharge of the fluid.
Patent GB-1458871-A (GB)
Title: Process for the preparation of oxamide
IPC: B01J31/00
Filed: 1974-02-21
Abstract: 1458871 Oxamide HOECHST AG 21 Feb 1974 [23 Feb 1973 18 Jan 1974 (2) 23 Jan 1974] 7886/74 Heading C2C Oxamide is made by contacting hydrogen cyanide and oxygen or an oxygen-containing gas in the presence of a catalyst containing water, a low molecular weight aliphatic carboxylic acid, copper ions and nitrate ions. To control the induction time the catalyst solution may also contain a salt of a low molecular weight carboxylic acid and/or nitric acid and, e.g. of ammonium, alkali metals, alkaline earth metals, Al, Tl, Ni or Fe. During continuous process, the slowing down of the reaction may be controlled by adjusting the pH of the reaction mixture to below 2 with nitric acid.
Patent GB-755662-A (GB)
Title: Improvements in or relating to temperature-responsive and other expansible power elements
IPC: G01K5/44
Filed: 1954-03-18
Abstract: 755,662. Diaphragm pistons. RANCO, Inc. March 18, 1954 [March 27, 1953], No. 7892/54. Class 122(1) [Also in Group XIII] An expansible power element, e.g. for actuating a valve or switch, comprises an elastic rubber - like tubular unit 20, 26 having open ends and an integral transverse fluid-tight resilient wall 27, 28 between its ends, a rigid sleeve 11 enclosing its sides, a fluid chamber 29 on one side of the resilient wall to apply fluid pressure to the wall to move it, and abutments at ends of the unit 20, 26 to limit longitudinal movements of its sides. A plunger 12 extends into the unit to engage the resilient wall and transmit its movements. The tubular unit may be in one piece or, as shown, may comprise two cup-shaped members 20, 26 having their closed ends 27, 28 abutting to form the resilient wall. The cup-shaped members 20, 26 may be made of Butyl and a nitrile synthetic rubber respectively, and the end 40 of the plunger may be made of tetrafluorethylene resin. The chamber 29 is connected by a passage to a capillary tube 17 which is sealed or connected to a bulb and contains an expansible fluid. Alternatively, the chamber 29 is completely closed at the bottom by the base 10, which is exposed to the variable temperature.
Patent GB-385270-A (GB)
Title: Improvements in and relating to lighting apparatus for lamps
IPC: B60Q1/14
Filed: 1931-03-14
Abstract: 385,270. Vehicle &c. lamps. PECQUEUR, L. F., 91, Rue de la Gare, Annezin-lez-Bethune, Pas-de-Calais, France. March 14, 1931, No. 7944. Convention date, March 15, 1930. Void [Published under Sect. 91 of the Acts]. [Classes 75 (ii) and 75 (iv).] Lantern shutters; lantern fronts.-A screening device for vehicle and like lamps comprises a number of strips of coloured, frosted, or striated celluloid, mica, or like transparent material pivotally mounted about vertical axes in front of the lamp. The strips 2, Figs. 1 and 3, may be pivoted directly on the lamp reflector, or, as shown, their upper end 4 may be pivoted to a metal ring 1 adapted to be secured to the reflector by screws and nuts 7, while towards their lower ends the strips are carried by grooved hinges 5 which are pivotally mounted on a bar 3 fixed to the ring 1 and on a bar 6 which is operated by a cable 8 against the action of a return spring 9. The cables 8 from a pair of headlamps are connected to a pair of plates 10, 11, Fig. 6, and are operated together by pulling a handle 18 out from the dashboard 14 against the action of a spring 13, the handle being turned when clear of the front of the dashboard for holding the strips 2 in the screening position. The top, bottom, and offsides of the front glasses of the headlamps may be coated with luminous varnish to provide matt surfaces.
Patent GB-713698-A (GB)
Title: Improvements in and relating to bag filters
IPC: B01D29/39
Filed: 1952-03-28
Abstract: 713,698. Leaf filters. SCHEIDT, W. March 28, 1952 [April 12, 1951], No. 8014/52. Class 46 The distending structure of a bag filter comprising a member a which constitutes the filtrate discharge pipe, members c1, c2, c3, connected to one another and to the member a preferably by hinges d, to d4 to enable the frame to be collapsed, and chains or the like e, is characterized by the provision of helical springs or the like f in the chains to maintain them under tension. The pipe a may be provided with a longitudinal slit h, Fig. 3, in its lower surface but preferably is provided with spaced openings. These are preferably constituted by the spaces between the turns of a wire helix g along the slit h, the helix g being pushed into the pipe. In a modification (Fig. 4, not shown), the helix is wound around or pushed on to the outside of the pipe a. Instead of chains with springs there may be provided for example helical springs, rubber hoses, multi-twisted rubber strips or woven rubber cords.
Patent GB-1183251-A (GB)
Title: Continuous Casting Apparatus with Mold Oscillating Means
Inventor: GOSS NORMAN PHILLIP
IPC: B22D11/05
Filed: 1967-02-21
Abstract: 1,183,251. Continuous casting-machines; making strip. OGLEBAY NORTON CO. 21 Feb., 1967, No. 8198/67. Headings B3A and B3F. In the continuous casting of a metal bar 32, a mould 10 is mounted on a movable platform 11 oscillated by hydraulic or pneumatic jacks 17 and also vibrated by devices 19, the force of the jacks 17 being controlled so that during the upward movement of the mould 10 normal friction is overcome, but the force is not capable of breaking the thin skin formed initially in the mould, but during abnormal friction conditions the mould is carried downwards by the movement of the bar 32 and pressure fluid is expelled from the jacks into a pressure accumulator (80), (Fig. 4, not shown). The forces are controlled and recorded by a pressure regulator (71) and strain gauges and oscillographs 23, 44. A limit switch SW1 is operated by the platform 11 at its limit of travel to stop the winch 42 controlling the pouring and the pinch rolls 26 withdrawing the bar 32. The mould 10 comprises resiliently mounted side walls (48) and end walls (54) provided with liquid coolant passageways (60), (63), (Fig. 2, not shown). A layer of fused glass may be added on top of the molten metal in the mould 10 to pass around the skin of the bar 32 to reduce friction forces. The pinch rolls 26 reduce the cross-section of the bar 32 by at least 25% to remove the piping (32a), (Fig. 3, not shown). In an example described the vibrating frequency is 500-3600 vibrations per minute at an amplitude of 0À005 to 0À020 inch, whereas the oscillations are at a frequency of 60-100 times per minute at an amplitude of 0À25 to 1À0 inch.
Patent GB-100649-A (GB)
Title: Improvements relating to Internal Combustion Engines.
Inventor: RENE ALGRIN
IPC: F02M61/00
Filed: 1916-06-10
Abstract: 100,649. Algrin, R. June 10, 1915, [Convention date]. Valve-gear.-A two-stroke-cycle engine is supplied with scavenging-air just as the piston is about to cover the exhaust port 3, by a rotary pump 8 and reservoir 7. Liquid fuel is injected during compression by a pump 12, the diaphragm 11 of which is secured to the stem of the oil-admission valve 24 and is actuated by a screw 14.
Patent GB-589938-A (GB)
Title: Improvements in and relating to insulated conductors
IPC: F24D13/02
Filed: 1945-04-04
Abstract: 589,938. Skirtings. JABLONSKY, B. April 4, 1945, No. 8297. [Class 20 (iv)] [Also in Group XXXVI] An insulated electrical conductor acting as a ceiling or floor beading or skirting consists of superposed layers of fibrous laminae 3, 4, interleaved with narrower conductors 7, 8, of flat or channel section, the laminae being bonded together and to the conductors by adhesive under pressure, the conductor joints being covered by a removable part 12 fitting into the body of the beading. The laminae consists of wood, paper, paper-pulp, fabric or glass fibre and the adhesive is preferably a thermosetting or thermoplastic resin. Rollers or hydraulic presses are used to mould and compact the beading which may be rectangular or fluted or otherwise ornamented. A number of beadings may be moulded side by side, either separately or together and in the latter case separated by sawing into smaller beadings. At straight or corner joints, the superposed laminae are removed and joint or angle plates 9, 10, secured by screws or soldering to the conductors 7, 8 which are then covered by a plate 12 of laminated material, rubber layers 18 being provided to secure a moisture-tight joint. The conductors may be in different planes and separated by at least one laminae.
Patent GB-384511-A (GB)
Title: Improvements in or relating to portable electric grinding, drilling and like machines
IPC: H02K7/14
Filed: 1932-03-21
Abstract: 384,511. Motor driving-arrangements. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. March 21, 1932, No. 8303. Convention date, July 27, 1931. [Class 35.] Motors, cooling.-A portable machine having a high speed rotary tool comprises an electric motor 1 which rotates when running light at a speed of from 8000 to 12000 r.p.m. and whose shaft 4 carries a pulley 5 connected by a belt 22 to a pulley 12 on the tool spindle 9 which rotates at a speed of from 30000 to 50000 r.p.m: The pulley 5 serves as a flywheel to compensate for variations of load on the motor and is also provided with a fan 6 to draw air through apertures 19, 20 in the casing 18 and bearing supports 3, 2 respectively and to deliver it around the tool spindle 9, to cool it and blow away swarf from the tool 14. The spindle 9 is carried in elongated roller bearings 13 in a support 8 which is adjustably secured to an extension 7 of the bearing support 2. Adjustment to vary the tension of the belt is effected by a screw 11 and locking by a cap nut 10 screwing on the support 8. The apparatus is enclosed by two covers 17, 18 formed of insulating material, the cover 17 having an extension 21 surrounding the tool spindle 9 and support 8. A handle 15, carrying a controlling switch 16 for the motor, is secured to the support 7 in line with the tool spindle and is provided with a hole to give access to the cap nut 10. The machine may be secured to the slide rest of a lathe and a belt drive to the tool spindle may be provided at both ends of the motor shaft. One end of the motor shaft may be constructed as a holder for a drill, milling-cutter or similar rotary tool and the holes 10 may be covered by wire gauze.
Patent GB-109593-A (GB)
Title: Improvements in and relating to Knife Sharpeners.
Inventor: JOHANSEN ANDREAS
IPC: B24D15/08
Filed: 1917-06-12
Abstract: 109,593. Johansen, A. June 12, 1917. V-slot and like blade sharpeners.-The blade of the knife is drawn between a pair of balls which roll down its edge. The balls 10 are supported in recesses in uprights 4, 7; the upright 4 is formed on the base 1 by cutting two slits 5 and turning up the tongue; the upright 7 is bent in at the bottom and bears on the projecting parts 6 of the base being secured to the part 4 by a screw 8. The base 1 is screwed to a table.
Patent GB-978014-A (GB)
Title: Method of vulcanization
Inventor: ELDER STUART LEONARD
IPC: B29C35/02
Filed: 1961-03-10
Abstract: <PICT:0978014/C3/1> A method of vulcanizing a vulcanizable rubber composition comprises passing a heated gas upwardly through a chamber 1 disposed within a chamber 2, feeding solid particles into the base of chamber 1 through passages 14, 15, regulating the pressure of the heated gas so that the particles are carried upwardly through the chamber 1 and then fall into the space 18 between the chambers 1 and 2 to be returned to passages 14, 15 and passing the material to be vulcanized upwardly through chamber 1.  The heated gas is supplied to chamber 1 through passages 10, 11 formed in a base plate 3 and through nozzles 16, 17 adjacent passages 14, 15, base plate 3 having an inlet 9 for the passage of vulcanizable sheet rubber.  A glass observation cylinder 5 is secured to chamber 2 and is surmounted by a chamber 8 which is maintained at a temperature sufficient to complete the vulcanization of the rubber.  The solid particles in space 18 may be heated by electric heaters or pipes or coils through which a heating fluid is passed. Specification 978,013 is referred to.
Patent GB-633870-A (GB)
Title: Improvements in or relating to failure alarm arrangements in multi-channel carrier current communication system
IPC: H04J1/16
Filed: 1947-04-01
Abstract: 633,870. Carrier transmission. STANDARD TELEPHONES & CABLES, Ltd.,. JACOBSEN B. B., and FAIRLEY, F. April 1, 1947, No. 8889. [Class 40 (iv)] In a multi - channel carrier current communication system of the suppressed carrier type, a group failure alarm is given when the sum of the carrier leaks falls below a specified minimum level. In Figs. 1-3, the carrier leak in the signal at terminals 1 and 2 of the hybrid transformer 5 is accepted by the broadly tuned primary and secondary of a transformer 6 and amplified in valves 9 and 15, rectified in 21 and develops a P.D. across a load resistance 23 which is applied to the grid of valve 15 via resistances 17 and 18. The movable contact of relay A just makes on the left-hand contact L which operates relay D and the circuit of the channel failure alarm lamp 33 is opened. A sub-normal carrier leak sets the movable contact of relay A in a neutral or mid-position, releasing relay D and alarm 33 is operated. Relays E and B, normally operated, light an alarm equipment failure lamp 42 on the failure of valve 9 or interruption of H.T. respectively and also guard against false operation of the group failure alarm 1. Should valve 15 fail, its anode potential increases and the movable contact of A makes on contact H operating the relay C, opening the group failure alarm circuit and operating alarm 42. In the embodiment shown in Fig. 4, the output of valve 9 is capacity-coupled to the voltage doubler circuit comprising the rectifiers 46 and 47, the condenser 49 and the load resistor 48. Normal carrier leak produces an output greater than the voltage at the junction of the resistances 51 and 52 and relay F operates, but for lower inputs no current flows in relay F and the alarm lamp 33 is lit. Feedback increasing with the input signal level is applied by the non-linear voltage-dependent resistances 53 and 54 so that at high input levels the amplification approaches unity. Relay E of the previous embodiment is dispensed with since in such a single-stage arrangement relay B serves the function of both. A further embodiment, Fig. 7, incorporating the alarm circuits, Figs. 5 and 6, of the previous embodiment has the output from valve 9 capacitycoupled to the voltage doubling rectifier circuit 58, 59, and hence to the load resistance 60 in series with relay F shunted by condenser 61. Rectifier 62 is normally blocked by the potential across resistance 63 due to the space current, but owing to its non-linear characteristic, high inputs are shunted to earth by its lower impedance due to increased potentials developed across resistance 60 and relay F by higher outputs. The circuits may be employed for a group alarm, in which case the hybrid transformer 5 is connected by terminals 1 and 2 between the group demodulator and the point of separation of the channels, thus preventing carrier leak from the channel demodulator feeding back. Specification 612,362 is referred to.