baber/WOPTO huggingface dataset:
Patent GB-592650-A (GB)
Title: Improvements in epicyclic reversing and speed reduction gear
IPC: F16H61/02
Filed: 1945-05-24
Abstract: 592,650. Epicyclic reversing - gearing. SMITH, W. May 24, 1945, No. 12950. [Class 80(ii)] In a fluid-operated epicyclic reversing- gearing comprising a sun 4 on the input shaft 1 meshing through planets 5 in a freely-journalled carrier 6 with a freelyjournalled annulus 8, both the carrier and annulus have a braking surface 70, 81 and a clutching surface 71, 82 respectively, and are simultaneously axially reciprocable in opposite directions to engage these surfaces selectively with a braking surface 11 on the gear casing and a clutch member 9 on the output shaft 2 for forward and reverse reduction drive respectively. Admission of operating fluid to the left-hand chamber a of two annular chambers a, b defined by the annulus 8 and carrier 6 moves them to the left and right respectively, bringing the surfaces 81, 11 and 71, 9 into contact and holding the annulus whilst the carrier drives forwardly. Admission of fluid to the chamber b reverses the motions of the annulus and carrier bringing the surfaces 70, 11 and 82, 9 into contact,and holding the carrier whilst the annulus drives reversely. Operating fluid is delivered alternatively to the chambers a, b from a pump 12 on the shaft 1 through a distributing valve 121 and two passages 13, 15 in the rotated uniformly about its own axis as the shaft 1. A third passage 14 is in constant communication with the pump 12 and delivers fluid to chambers d, c, of which the former balances the clutch engaging thrust on the member 9, and the latter serves by controlled leakage to centralise the carrier and annulus in neutral when the supply to both chambers a, b is cut off by the valve 121.
Patent GB-982968-A (GB)
Title: Liquid-sample supply apparatus
IPC: G01N1/00
Filed: 1963-04-02
Abstract: 982,968. Ratchet gearing. TECHNICON INSTRUMENTS CORPORATION. April 2, 1963 [April 2, 1962], No. 12955/63. Heading F2Q. [Also in Divisions B8 and H2] A ratchet mechanism for rotating a liquid-container support plate 14 (see Division B8), comprises a ratchet gear 148 secured to a shaft 126 and indexed around intermittently by means of a pawl 154 actuated by a solenoid 166. A pin 160 is fixed to the pawl 154 so that, when the solenoid is energized, the pawl is pivoted, against the action of a spring, to thereby cause the pin to engage a tooth 164 of the gear. Upon de-energization of the solenoid, the spring pivots the pawl so as to bring a second pin 162 into engagement with a tooth and thereby prevent overrun of the support plate. Specification 774,711 is referred to.
Patent GB-873106-A (GB)
Title: Improvements in or relating to temperature control arrangements
Inventor: HOGARTH GRAEME MASON
IPC: A21B5/02
Filed: 1958-04-24
Abstract: 873,106. Automatic temperature control systems. GENERAL ELECTRIC CO. Ltd. April 15, 1959 [April 24, 1958], No. 13091/58. Class 38 (4). In an automatic temperature-control system for an electrically heated space, radiation from the heater is intercepted by the surface of a piece of metal foil attached to a thermocouple the output of which controls the energization of the heater. In Fig. 2 a piece of thin metal foil 11 is supported on heat-insulating blocks 24 near a sheathed wire heater 1 located under a reflector 2 at the top of a tunnel oven. Metal foil 11 is blackened on the side facing the heater and is shielded by a further piece of metal foil 19 from the influence of articles (not shown) passing through the oven for treatment. Metal foil 19 is blackened on the side facing metal foil 11 and polished on the other side. A thermocouple (not shown), welded to metal foil 11 controls an electromagnetically operated mercury-type switch (not shown) which operates to energize heater 1 intermittently for fixed time periods whenever the temperature falls below a predetermined value and de-energizes heater 1 when the predetermined temperature is exceeded. The temperature at which the mercury switch operates may be oscillated so that the operation period is made proportional to fall of temperature.
Patent GB-640431-A (GB)
Title: Improvements relating to heat interchange apparatus
Inventor: BELL FRANCIS ROBERT
IPC: F28D9/00
Filed: 1948-05-13
Abstract: 640,431. Tubular heat-exchange elements. ROVER CO., Ltd. May 13, 1948, No. 13124. [Class 64(iii)] Fluid entering one end of a thin metal heat-exchange tube with transverse corrugations extending across at least one side is caused to flow in thin parallel streams through the passages formed by the corrugations before emerging at the other end of the tube. In the form shown, the tube is composed of two flat channel-shaped strips a, b which are transversely corrugated, and contains a core comprising two similar hollow tapered parts c which are closed along their contiguous edges and open along their outer edges except at the ends d which form the inlet and outlet to the tube. The fluid flows from one core part c through the corrugations to the other core part. In a modification, one side of the tube is formed by a corrugated strip and the other by a hollow wall formed like the core.
Patent GB-776579-A (GB)
Title: Mining machine-cooling system
IPC: E21C35/00
Filed: 1955-05-06
Abstract: 776,579. Mineral-mining machines. UNION CARBIDE & CARBON CORPORATION. May 6, 1955 [May 26, 1954], No. 13142/55. Class 68 (1). [Also in Group XIII] In a conveyer of a mineral-mining machine having a bed-plate 40 along which fragmentary material 38 is transported from an associated bore mining or other machine, the cooling liquid circulated through the engine of that machine flows through and is cooled in a heatexchange passage 28 with which the bed-plate is provided. The fragmentary material, e.g. coal, absorbs the heat. In the form shown, a sinuous passage 28 is formed by longitudinal angle-irons welded to the bottom of the bedplate, and connected by cross channels 48 at their ends. Alternatively, tubing may be welded to the plate or a double plate may be provided. Parallel paths may replace the single sinuous path.
Patent GB-1189046-A (GB)
Title: An Annealing Furnace for the Bright Annealing of Workpieces
IPC: C23C8/06
Filed: 1968-03-19
Abstract: 1,189,046. Annealing furnaces; carbonitriding. DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT. March 19, 1968 [March 23, 1967], No. 13176/68. Headings C7N and C7U. [Also in Division F4] A furnace for bright annealing or gas carburizing or carbonitriding steel (alloy) workpieces has its inner ceramic cladding coated with a catalyst material, e.g. NiO, Pt or Pd, so that the inert or carburizing gas is catalytically produced in the furnace itself direct from combustible gas e.g. butane or propane and air introduced into the furnace. For carbonitriding, ammonia may be simultaneously introduced.
Patent GB-1282691-A (GB)
Title: Variable rate neutron source
IPC: G21G4/02
Filed: 1970-03-19
Abstract: 1282691 Neutron sources UNITED STATES ATOMIC ENERGY COMMISSION 19 March 1970 [15 April 1969] 13210/70 Heading G6P In a neutron source, the neutron emission rate is varied by controlling the rate at which target material flows past the alpha emitting zone. The alpha source may be plutonium 238, polonium 210, thorium 228, uranium 232 or Americium 241. The target may contain fluorine, oxygen, nitrogen and beryllium, for example, fluorobenzene or perfluorocarbon compounds. The alpha emitter 30 is formed of pellets held within the cage 32 mounted in container 12. The target material is moved along the container from the evaporator zone, 18, as a vapour, to the condenser section 20 and returns to 18 as a fluid through the capillary layer 14. Termination of the heat supply to 18 causes the complete condensation of the target fluid and the minimization of the alpha, neutron reaction.
Patent GB-417139-A (GB)
Title: An improved metal airscrew
IPC: B64C11/20
Filed: 1934-05-05
Abstract: 417,139. Air-screws. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., SIR W. G., WYLIE, H. N., and GOULD, G. H., Whitley Aerodrome, Whitley, Coventry. May 5, 1934, No. 13224/33. [Class 114.] In an air-screw blade comprising a thin shell and at least one longitudinal internal support which is of a material having a lower density than that of the shell, a support is secured to the inner surface of the shell by an adhesive setting agent or by compression under the springiness of the shell surface, the shell being imperforate in the vicinity of the support. The metal shell 12 is trimmed at its edges 13 and a stiffener 14 of lower density is secured thereto by an adhesive having properties similar to those of plastic wood. The longitudinal support 15 consisting of a hollow wooden strut provided with peripheral recesses 16, is preshaped and slightly oversize so that when inserted it will contact with the internal surface of the shell and be held by the springiness thereof. The recesses may also be filled with plastic wood before insertion or forced through the hollow support and out through holes 18. Hardening of the plastic material is facilitated by circulating a current of air down the centre of the support. The support 15 is secured at the root where it is of circular section, by means of an external sleeve 20 having an external flange 21 adapted to engage an inner sleeve 22 on the blade root. The strut may be large enough to contact with the whole of the inner surface of the shell.
Patent GB-252881-A (GB)
Title: Improvements in or relating to poultry houses and the like
IPC: A01K31/22
Filed: 1925-05-20
Abstract: 252,881. Dixon, R. A. May 20, 1925. Poultry houses.-A poultry house or like building supported upon beams has a portion of the floor removed and the space thus formed covered by wire netting a. A slanting frame b also provided with wire netting c is arranged over the netting a. The usual air vents d are arranged below the ridge e of the roof. In a modification the frame b rests upon a vertical partition.
Patent GB-900861-A (GB)
Title: Improved rotary printing machine plate clamping device
IPC: B41F27/10
Filed: 1960-04-13
Abstract: 900,861. Printing-surfaces. MASCHINENFABRIK AUGSBURG - NURNBERG A.G. April 13, 1960 [April 17, 1959], No. 13267/60. Class 100 (2). Plates 1, Figs. 1 and 2, are clamped by pivotally-mounted hooks 3 engaging recesses in the underside of plates, the hooks being actuated to effect clamping by a cam-shaft 5. Each shaft 5 comprises a plurality of shaft parts 5<SP>1</SP>, 5<SP>11</SP>, each of which extends the length L of a plate 1. The shaft parts are rotated by worm gears 6 and 7. A ratchet wheel 10, Fig. 3, is mounted on the shaft of a worm 9, the worm 9 being rotated by a box-spanner 13 engaging a square end 12 of the worm shaft. A pawl 11 is disengaged from the teeth 20 of the ratchet wheel 10 by a bevel on the spanner 13. The plate cylinder has bores 14, Fig. 5, carrying rotatable pins 15, a part 16 of each pin engaging the curved edge of a plate 1, and being eccentric to the remainder of the pin to effect lateral adjustment of the plate upon rotation of the pin by a spanner, not shown. Each pin 15 has teeth engaged by a ratchet to obviate inadvertent rotation, while a scale is provided on the end face of the pin 15.
Patent GB-1441821-A (GB)
Title: Winding machine
IPC: B65H54/42
Filed: 1973-03-20
Abstract: 1441821 Pressing wound turns onto package BARMAG BARMER MASCHINENFABRIK AG 23 April 1974 [20 March 1973] 13275/73 Heading D1J A winding machine of the kind having a contact roller 1 that is in friction contact with the surface of the yarn package 6 is characterised in that the roller 1 comprises cylindrical end sections 2, 3 that are larger in diameter than the middle section 4 of the roller. The contact length 22 of each of the sections 2, 3 with the package 6, in at least three times the arc height 7 of the yarn at the strokereversal zones. The arc height is defined as the difference between the actual and ideal yarn reversal points. The cylindrical end sections 2, 3 may have end portions 30, 31 that decrease in diameter towards the middle section 4. In Fig. 6 the end portions 30, 31 are of truncated form but they may, alternatively, be in the form of segments of a sphere, or a paraboloid or the like. The diameter of the middle section 4 may decrease from the ends towards the middle. The cylindrical end sections 2, 3 may have a profile machined into their surface, for example a diamond-like pattern, a helical pattern of low pitch, or a pattern of circular co-axial rings. The contact roller 1 may transmit the entire torque required to drive the package 6; part of the torque required; or zero torque. In Fig. 10 the roller 1 is driven by a synchronous motor 49. A motor 36 drives the package 6. Circuitry 50, 51 between the two motors ensures that the torque applied by the package 6 to the contact roller 1 is equal to zero. In Fig. 11 the contact roller 1 carries a magnetic insert 53 that acts on an induction coil 52. The resulting pulse train is converted into a signal V and is compared at 55 with an adjustable signal S representing the peripheral speed of the package or determined by the rate of yarn travel. Through the differential signal D, the speed of the motor 36 is reduced until the differential signal is equal to zero. In Fig. 1 a vertically displaceable carriage 18 carries a traversing yarn guide 11, a guide roller 15 provided with yarn guide grooves 23 extending over the entire stroke range of the traversing yarn guide, or, alternatively, only in the terminal zones of the roller; and the contact roller 1 with its cylindrical end sections 2, 3. The yarn coming from the guide roller 15 runs onto the package 6 before it is contacted by the end sections 2, 3. The weight of the carriage 18 may be partly compensated by pneumatic cylinders (38), Fig. 8 (not shown). As the carriage 18 rises, due to the increase in diameter of the package 6, the moving carriage 18 may, after layers amounting to a few mm in thickness have been applied to the empty tube 8, actuate a valve (47) to allow a higher pressure to be admitted to the cylinder (38) thus further compensating the weight of the carriage. When the package has been fully wound the carriage 18 actuates a further valve (46) to cause the cylinder (38) to receive a pressure sufficiently high to lift the carriage off the package.
Patent GB-127466-A (GB)
Title: Improved Construction of Motive Power Apparatus.
Inventor: MCINTIRE CHARLES SHIELDS
IPC: F03G7/10
Filed: 1918-08-16
Abstract: 127,466. McIntire, C. S. Aug. 16, 1918. Self-driving machines. - A wheel bears loaded attachments each o: which hangs as a pendulum when or one side of the vertical diameter, but projects as a radial arm when on the other side. Each attachment con. sists of three sections 6, 7, 10, the first fastened rigidly to the wheel 1, the second pivoted to the first key and a stop 8, and the third free to turn one way over a ratchet pinion 9 at the end of the second. This last section carries a terminal weight 12 and a cam 14. As an attachment passes, round from the hanging position, its cam bears on a peri. pheral roller 15 till the summit of the wheel is reached, when a roller 16 close to the weight comes on the periphery of the wheel. With the further holding of the two sections 7, 10 as shown in dotted lines, the roller escapes from the wheel, and the weighted section swings to an outer position.
Patent GB-659868-A (GB)
Title: Improvements in phase-modulating circuits
Inventor: ANDERSON RODNEY
IPC: H03C3/06
Filed: 1949-05-19
Abstract: 659,868. Phase and frequency modulation. PLESSEY CO., Ltd. May 19, 1949, No. 13413. [Class 40 (v)] A phase-modulator comprises a push-pull valve circuit V1, V2 with the control grids subjected to four voltages; (1) the carrier voltage applied in push-pull; (2) the carrier voltage applied to both grids in phase quadrature with the voltage (1) and with at least five times its amplitude; (3) the modulating voltage M applied in push-pull; and (4) a bias B adjusted so that the peak modulating voltage cuts off the valves alternately. The push-pull voltage (1) is derived from the secondary of a double-tuned transformer T, and the quadrature voltage (2) from a connection of the live end of the primary coil to a centre-tap on the secondary. The tuned output circuit is coupled to a tuned circuit connected between the anodes of the valves V1, V2 and may feed one or more frequency multipliers. The modulator gives a phase modulation of about Œ 1.4 radians, and permits the use of a reduced number of frequency-multiplying stages.
Patent GB-373758-A (GB)
Title: Sanitary towel
IPC: A61F13/53
Filed: 1931-05-06
Abstract: 373,758. Catamenial appliances. GEIPEL (nee NAUMANN), J., 5, Streitsberg, Plauen, Vogtland, Germany. May 6, 1931, No. 13421. Convention date, May 6, 1930. (Class 81 (ii).] A catamenial pad comprises absorbent material b, of cellulose wadding or absorbent cotton wadding, completely surrounded, except for a narrow strip on its upper side, by moisturerepelling material a, such as raw cotton, non- absorbent cotton-wool, or wool. The pad, in use, is enclosed in a gauze envelope.
Patent GB-707464-A (GB)
Title: Vehicle wheel rims
IPC: B60B25/18
Filed: 1951-06-06
Abstract: 707,464. Vehicle wheels. KELSEY-HAYES WHEEL CO. June 6, 1951 [June 19, 1950], No. 13465/51. Class 144(2) A vehicle wheel 1 has a tyre carrying rim 2 formed with inner and outer generally axially extending portions 15, 11, Fig. 2, or 34, 33, Fig. 5, respectively, fixedly secured to a generally axially extending peripheral flange 3 of the wheel body, adjacent surfaces of the axial portions and the flange 3 having extended contact throughout their axial extent and the rim 2 having also a portion 36 or 12 extending radially outwardly from either the inner, Fig. 5, or outer, Fig. 2, axial portion 34 or 11 respectively to form, with a radially outwardly extending portion connecting the said axial portions 34, 3i3 or 15, 11, a gutter 10 providing or receiving means 6 to clamp a tyre retaining ring 5 on the rim. Fig. 2 shows the wheel flange 3 riveted between the axial rim portions 15, 11, the said axial portions being connected by a radially outward loop portion 13, 14 forming one wall of the gutter 10 in which seats a split ring 6. The split ring 6 engages a radially inwardly projecting portion 20 of a looped tyre-bead retaining ring 5 shaped as shown to provide a bead seat portion 17 and a support portion 19 engaging therewith. Fig. 5 shows the rim edge outwardly doubled on itself to provide axial portions 34, 33 connected by a looped radial gutter wall and riveted to the wheel body flange. In alternative constructions the rim edge may be doubled inwardly on itself or the wheel flange may have a radially outwardly projecting edge received in the looped radial connecting portion of the inner and outer axial parts of the rim.
Patent GB-631895-A (GB)
Title: Improvements in valve gear for reversible steam engines
IPC: F01L31/16
Filed: 1947-05-19
Abstract: 631,895. Steam-engine valve-gear. MARTEN, E. W., and ASSOCIATED LOCOMOTIVE EQUIPMENT, Ltd. May 19, 1947, No. 13471. [Class 122(ii)] In a valve-gear for reversible steam engines of the kind wherein each inlet valve is controlled by two cams a, d, one of which a, during forward running of the engine controls the opening of the valve and is acted upon by one roller b of a swing beam 18 through which the inlet valve is operated by means of levers 19, 21, and the other cam d, during forward running of the engine, controls the closing of the valve, being simultaneously acted upon by the other oppositely arranged roller c ofthe swing beam 18, means being provided for adjusting these cams angularly relatively to one another to vary the admission period and to reverse the direction of rotation of the engine and wherein the profile of the said opening inlet cam a comprises two oppositely arranged circular arcs of different radii connected together by two directly sequent connecting surfaces, and the profile of the said closing inlet cam d comprises two similarly disposed circular arcs of the same respective radii, the profile of at least one of the inlet cams a, d, is cut away so as to form a gradual decrease in radius over part of the circular arc of greater radius of which the profile of the cam is composed. Where variable lead during forward running only is desired, only one cam is modified, but where variable lead when running in either direction is required, both cams a<1>, d' are modified as shown in Fig. 4. The rise of the profile IV -modified in accordance with the invention-on the closing cam d' is arranged so that the tendency of cam a<1> to open the inlet valve via roller b is delayed by the lower position of roller c on the cam d<1>. Earlier cut-off is obtained by moving cam d<1> relative to cam a<1> in the direction shown and the opening of the inlet valve, i.e., lead, is simultaneously varied due to the increasing radii of profile IV until roller c moves on to the cylindrical portion of cam d', when cam a<1> becomes the only factor controlling the opening of the inlet valve. When the engine runs in the opposite direction the duties of the cams are interchanged and the profile of cam a<1> has a similar delaying action on the opening of the inlet valve due to the action of cam d<1> and similarly provides variable lead over a predetermined cut-off range. Specifications 170,855, [Class 122(ii)], and 448,086 are referred to.
Patent GB-504161-A (GB)
Title: An improved arrangement of the adjustable pressure beam in wood-working machines
IPC: B27G19/10
Filed: 1938-05-05
Abstract: 504,161. Planing wood. KIRCHNER, E. May 5, 1938, No. 13495. Convention date, May 5, 1937. [Class 145 (i)] In wood planing and like machines in which the rotary cutter 2 is arranged above the work 4 and the pressure beam 5 is concave to the cutter and terminates in a tongue forming the pressure edge 7, the pressure beam is adjustable in such a direction that the pressure edge moves in a plane E<1>-E<1> which is perpendicular to the plane E containing the axis of the cutter and the lowest position of the pressure edge. The pressure beam 5 is pivoted at 8 to the lateral cheeks 9 of a cross-beam 10 slidable on guides 11 parallel to the plane E<1>-E<1>. The pivotal movement of the pressure beam is limited by a projection 26 and it is pressed down on to the work by springs 12. The cheeks 9 of the cross-beam 10 are provided with an abutment 26 to limit the thickness of the work which can be introduced. A scale 27 indicates the thickness of the shaving.
Patent GB-542423-A (GB)
Title: Improvements in and relating to roller window blinds
IPC: E06B9/324
Filed: 1940-08-27
Abstract: 542,423. Friction grip fastenings. DAVIES, W. J. Aug. 27, 1940, Nos 13516 and 14917. [Class 44] [Also in Group X] A roller blind, wherein the free end of the blind is weighted by a batten in a hem f, or the roller is spring loaded, is operated by a cord g which is frictionally gripped by a spring device constituted by resilient wire bent into two parallel limbs forming helices i, i' which fit one into the other. The cord is threaded through these helices, and, when they are pressed apart by the spring action of the wire they grip the cord which may be released by pressing together thumb pieces i<2>, i'. The spring device is screwed at j into the window frame. The roller pins c may be supported by brackets formed from wire bent to a V-shape, one end being screwed to the frame, and the other end having a point d which is driven into the frame.