baber/WOPTO huggingface dataset:
Patent GB-487988-A (GB)
Title: Improvements in or relating to teapots
IPC: A47G19/14
Filed: 1937-08-24
Abstract: 487,988. Teapots. GEVEKE, W. Aug. 24, 1937, No. 23205. [Class 129] A teapot a is provided with a hot-water container b removably suspended from the rim of the pot, and having an outlet controlled by the valve t operated by the knob h on removing the lid c of the pot. The container also has a cover n which partly closes its top and prevents spilling when the pot is tilted for pouring, and an opening s for observing the flow of hot water into the pot when the valve is operated. Openings r allow the water to escape from the container into the pot instead of spilling over the apron n, when the pot is excessively tilted.
Patent GB-463038-A (GB)
Title: Improvements in change speed control mechanism for automobiles and the like
Filed: 1935-08-19
Abstract: 463,038. Actuation of switches. GUY MOTORS, Ltd., and EDWARDS, C. K. Aug. 19, 1935, Nos. 23207/35 and 12763/36. [Class 38 (v)] [Also in Group XXIV] A control mechanism for a change-speed gear-box of the electrically operated type comprises a series of selectively operable switches for the exciting circuits of the gear and locking means to prevent the selected switch from actually completing its circuit to effect the change of speed until released for that purpose by the driver. Pairs of contacts 5, 6 to 11, 12 are provided for each circuit and adapted to be bridged by contact fingers 1, 2, 3 and 4 which are operated by cranked selector levers 22. Associated with each of the selector levers 22 is a spring plunger 20, which is adapted to be loaded by the cam-end 15 of a pre-selector lever 14, and a locking lever 24 under the control of the driver. Thus, to effect a change of speed, the lever 22 of the desired gear circuit is loaded by the pre-selector lever 14 and the locking levers 24 then released. The circuit of the gear required is completed by the spring-loaded lever 22 and the circuit of the gear previously in use is broken by the respective lever 22 under the tension of a return spring 25. The locking levers 24 may be connected to and operated by the clutch mechanism in transmissions employing a clutch. A reversing switch member may be coupled to the actuating shaft of the locking levers 24 and adapted when changing speed to effect a momentary reversal of the current in the gear circuit previously in use to ensure complete disengagement of that gear.
Patent GB-447524-A (GB)
Title: Improved methods for regenerating phosphoric acid pickling baths
IPC: C23G1/36
Filed: 1935-08-19
Abstract: Phosphoric acid pickling baths for ferrous metals are regenerated by adding sulphuric acid thereto.  The amount of sulphuric acid is preferably smaller than that required to form ferrous sulphate with all the iron in solution and is added in small quantities at different times.  Part of the exhausted bath, prior to regeneration, may be diluted and used as a second bath of acid iron phosphate to form a supporting film for paints or varnish.
Patent GB-1221133-A (GB)
Title: Rare earth activated yttrium and gadolinium oxy-chalcogenide phosphors
Inventor: ROYCE MARTIN ROBERT
IPC: C09K11/08
Filed: 1968-05-16
Abstract: 1,221,133. Luminescent materials. RCA CORPORATION. 16 May, 1968 [28 Dec., 1967], No. 23314/68. Addition to 1,131,956. Heading C4S. A luminescent material is of empirical formula K<SP>1</SP> (2-x-y) K<SP>11</SP>M x O 2 Ch where K<SP>1</SP> is Y and/or Gd, K<SP>11</SP> is La and/or Lu, M<SP>11</SP> is Dy, Er, Eu, Ho, Nd, Pr, Sm, Tb or Tm; O is oxygen; Ch is S, Se or Te; x is between 0À0002 and 0À2 and y is greater than 0 but does not exceed 0À25. Tracer amounts of rare earths may be included, e.g. up to 50 p.p.m. (10 to 30 p.p.m. of Tb for instance) of Tb and/or Pr. Phosphors exemplified are Y 1 . 71 La 0 . 19 E 0 . 1- O 2 S as the red emitter in a c.r.t. ; Y 1 . 99-y La y Tb 0 . 01 O 2 S as the blue emitter in a c.r.t.; Y 1 . 71 Lu 0 . 19 Eu 0 . 1 O 2 S; and Y 1 . 52 La 0 . 19 Lu 0 . 19 Eu 0 . 1 O 2 S. Emissions at 6260 Š, 6160Š and 6165Š are disclosed. Preparations correspond to those in the parent Specification and also heating a mixture of sulphur sodium carbonate and oxides or oxalates in a covered crucible in air, or likewise a mixture of sodium thiosulphate and oxides, oxalates or sulphates.
Patent GB-1380337-A (GB)
Title: Reservoir filling and emptying device
IPC: F15D1/00
Filed: 1972-05-18
Abstract: 1380337 Reservoir inlet and discharge means BVS 18 May 1972 [28 June 1971] 23353/72 Heading E1T A device through which water may be fed into or discharged from a reservoir comprises a curved conduit 4 having one end communicating by way of an aperture in a base plate 1 with a chamber 3 defined by said base plate and a cover member 2 spaced therefrom, the conduit 4 being shaped as disclosed in Specification 1263237 which shape in conjunction with a conical diffuser 22 prevents excessive turbulence in the water issuing from the chamber 3. The cover 2 is spaced from the base plate 1 by tubes 5 enclosing the interconnecting bolts 7 and the cover 2 is provided with an annular lip 23 to facilitate the flow when the device is used for emptying the reservoir. The device may be mounted on the bottom of or underneath the bottom of a reservoir or mounted beneath the floating roof of a reservoir, see also Figs. 2-5 (not shown) for details thereof.
Patent GB-1048071-A (GB)
Title: Quick-release fastening means
IPC: F16B21/10
Filed: 1963-06-12
Abstract: 1,048,071. Cotters. J. J. McCARTHY. June 12, 1963, No. 23409/63. Heading F2H. [Also in Division E2] A fastening means comprises a hollow shank 10, a release member 16 movable in the shank and having a cam 20 which is movable in a direction along the axis of the shank, an elongate fastener member 22 carried by the shank and movable laterally of the axis of the shank between protruding and non-protruding positions thereof, said fastener member having at its two ends normally protruding abutment portions and being operatively connected between said ends to said cam to be moved thereby said shank having guide means 26 engaged with the fastener member to guide the latter for said movement in the shank. In the construction shown, the fastener member is biased to the position in which the abutment portions protrude beyond the periphery of the shank by a pair of springs 50, 52 and movement of the release member in either direction from this position causes the cam to move the fastener member to its diametral position since the cam has a substantially V-shaped slot in which is engaged a central portion of the fastener member the slot having two inclined portions and a central portion parallel with the axis of the shank. When the central portion of the fastener member is in the central portion of the slot the fastener member is held in the position in which the abutment portions protrude and when the fastener member is at the ends of either of the inclined portions it is in its diametral position. Grasping a head 18 on the release member 16 and pressing the fastening means into aligned apertures in two parts 14 and 15 to be fastened together causes the fastener member to be moved automatically to the diametral position to enable the shank to enter the apertures and when the fastener member has passed beyond the further part 14 the fastener member is automatically moved by the springs to its chordal position in which the abutment portions protrude. The two parts are therefore fastened together between the abutment portions 24 and a collar 13 fixed to the other end of the shank. In a modification, a single spring is substituted for the two springs 50, 52. In a further modification, the cam slot has a single inclined portion. The abutment portions for the construction shown are of circular cross-section so that they have a line contact with the part 14 but in a modification, the circular cross-section of the abutment portions is modified so that each has two parallel flat surfaces so that there is surface contact instead of line contact with the part 14. In a further modification, to provide surface contact, the abutment portions are of segmental partly circular shape and the cam has a single inclined slot.
Patent GB-893718-A (GB)
Title: Improvements in or relating to a die clamp
IPC: B21D37/04
Filed: 1960-07-05
Abstract: 893,718. Die clamps for presses. BLISS CO., E. W. July 5, 1960 [July 8, 1959], No. 23481/60. Class 83 (4). A press die clamp comprises a clamping member having a T-head on one end arranged to engage a T-slot of a die, and a shank portion on the opposite end, a housing to contain the shank portion of the clamping member, stop means secured to the housing to limit rotational movement of the clamping member, overriding clutch means drivingly connected to the clamping member and means, coacting with the clutch means to rotate the clamping member into contact with the stop means. In an embodiment a clamping unit 10, Fig. 2, comprises a shaft 36 having a T-shaped head 12 on one end and a screw-threaded portion 14 at the other end for receiving a nut 20 which abuts the end face 18 of a housing 16. A socket-type adaptor 22 secured to the driving shaft of an electric motor 26 slidingly engages the nut. A squared portion 27 on the socket enables the T-shaped head 12 to be adjusted manually by means of a spanner. The stop means for limiting rotational movement of the shaft comprises a set-screw 28 mounted in the housing 16 and alternately engaging shoulders 32 and 34, Fig. 3, formed by recessing the shaft at 38. A limit switch 40 also mounted in the housing is tripped by movement of a ball 42 in and out of a recess 44 in the shaft. This switch is used to provide a visual indication of the position of the T-head or alternatively to render the press inoperable unless the T-head is correctly orientated in the clamping position. The overriding clutch means 65 comprise a helical spring 66 provided with end pads 68 and 70 which engage a tapered portion 72 on the shaft and a tapered spigot 74 on the nut respectively. The spring pressure is sufficient to cause the nut and shaft to be rotated in unison until one of the shoulders on the shaft engages the stop screw 28 whereafter the clutch will slip to enable the nut to be rotated to either raise or lower the clamping member relatively to the die 52 and/or slide 62. In operation, the clamping member is adjusted to correct length before the slide 62 is lowered into contact with the die 52. Should the T-head of the clamping member be incorrectly orientated it will engage the top of the die and the shaft 36 will be depressed upwardly and the T-head will be received within a counterbore 64 in the slide 62. The motor 26 is operated to adjust the T-head into clamping position which is indicated by the tripping of the limit switch 40. Concurrently motor 26 continues to raise the clamping head 12 into clamping engagement with die shoulders 46 and 48 after which the motor is de-energized by cut-off means (not shown).
Patent GB-1505993-A (GB)
Title: Swivel connectors
IPC: B63B21/48
Filed: 1975-05-23
Abstract: 1505993 Rope couplings BEAUFORT (AIR - SEA) EQUIPMENT Ltd 23 May 1975 [28 May 1974] 23567/74 Heading D1T [Also in Division E2] In a swivel connector suitable for use in attaching a drogue parachute to a life-raft, a member 10 is attached by lines 24 to the drogue parachute and a member 12, adapted to fit into the member 10, is attached by a line 28 to the life-raft. The member 12 is provided with a head 18 which, in the assembled position shown in Fig. 2, seats on an annular seat 16 provided in the member 10 A P.T.F.E. washer 14 is disposed between the members 10 and 12 co-axial with the axis of rotation so as to abut the seat 16. The members 10 and 12 are each made of nylon.
Patent GB-654734-A (GB)
Title: Improvements in reflectors for radiant energy
IPC: G01S13/75
Filed: 1948-09-09
Abstract: 654,734. Reflex reflectors. RADIO CORPORATION OF AMERICA. Sept. 9, 1948, No. 23747. Convention date, Oct. 1, 1947. [Class 97 (i)] [Also in Group XL (c)] A reflector for use as a marker beacon returns incident radiant energy along a path substantially coincident with that along which it arrives independently of the azimuth of said path, and comprises a dielectric sphere 1 having a radius of at least one wavelength, together with a band 3 formed either wholly or partly of metallic material embracing the sphere at an equator. Incident rays such as 7, 9 are refracted to strike band 3 at point 11 and are reflected to return along path 7<SP>1</SP>, 9<SP>1</SP>. The diameter of band 3 depends upon the refractive index of the material of the sphere, and the band may lie outside or inside the sphere. The width of the band is one half-wavelength or more. In a further embodiment, Fig. 2 (not shown), the band is formed of alternate segments of reflective and non-reflective material and the assembly rotated so that the reflective and non-reflective segments come into line successively with the incident rays by which means the reflected rays are interrupted or coded so as to produce a characteristic indication.
Patent GB-952263-A (GB)
Title: Improvements in air cushioning vehicles
IPC: B60V1/00
Filed: 1962-06-20
Abstract: 952,263. Air cushion vehicles. FIAT S.p.A. June 20, 1962 [July 3, 1961], No. 23749/62. Heading B7K. An air cushion vehicle has a bottom wall formed on its periphery with a continuous slit for discharging a fluid curtain and a downwardly opened annular recess adjacent the slit, the recess and bottom wall being continuous. The vehicle comprises a body 2 having a base member 3 formed inboard of the curtain-forming orifice 10 with an annular recess 11. In operation the movement of air through orifice 10 induces a rotational movement of air beneath the recess, stated to constitute a secondary peripheral cushion which improves the stability of the vehicle.
Patent GB-302205-A (GB)
Title: Improvements in or relating to land harrows
IPC: A01B19/08
Filed: 1927-09-09
Abstract: 302,205. Rifkin, D. Sept. 9, 1927. Wheel-scrapers. - In a combined harrow and roller, links H connecting the roller J to the harrow are connected together by a stayed rod forming a scraper for the roller.
Patent GB-844788-A (GB)
Title: Improvements relating to machines for spraying asbestos or the like
Inventor: PENNINGTON JOHN DENIS
IPC: E04F21/12
Filed: 1957-07-26
Abstract: 844,788. Hoppers for fibres. ROBERTS Ltd., J. W. July 24, 1958 [July 26, 1957], No. 23776/57. Class 78 (1). [Also in Group XV] An asbestos and other mineral fibre spraying- machine comprises a hopper for the fibre with a bottom opening, a device at or inside the bottom of the hopper for permitting fibre to leave at a controlled rate, a rotary disc on a vertical axis below the hopper to fling the fibre centrifugally outwards to form a suspension in air, a casing around the rotary disc, and a fan having its suction side in, or in communication with, the casing to draw the suspension in and deliver it through a hose. As shown, the hopper 1 is held in the cylindrical casing 2 by bolts 3, slots 7 in the bottom rim of the hopper fitting over the shaft 8 provided with a handle 11 and having secured thereto a collar 16 carrying a bent metal plate 12 to which is welded a metal loop 18. Oscillation of the handle 11 causes the loop 18 to disturb the fibre and the plate 12 to rock to permit the fibre to fall from the hopper on to the rotating disc 23 on a spindle 24 rotated by the electric motor 26. The amplitude of oscillation of the shaft 8 and plate 12 is controlled by adjustable stop-screws. The spindle 24 also carries a fan impeller 25, which sucks down the air entering between the hopper 1 and the casing 2. The fibre falling on the disc 23 is thrown out to form a suspension in the air, which is sucked into the fan 25 and passes through an outlet port 31 to the hose 32 and spraying-device 33, which is controlled by a switch in the handle 11 via the lead 34. The apparatus may be carried on the back of the operator. In a larger apparatus, the plate 12 may be rocked mechanically by connecting the shaft 8 through a variable-speed gearing to a motor, e.g. the motor 26. The fan may be mounted on a separate axis. The fibre may also be slag, or rockwool. According to the Provisional Specification, the hopper may be of rectangular cross-section and the oscillating plate correspondingly shaped. The hopper may be mounted over a feed-shoot or another hopper leading to the lower end of an inclined conveyer by which the fibre is carried to rotary brushes. The hopper may be made in two parts hinged together. Specification 368.368 is referred to.
Patent GB-818034-A (GB)
Title: Process for the production of tanning extracts
Inventor: BINKO IVAN
IPC: B01J39/00
Filed: 1955-08-18
Abstract: 818,034. Vegetable tanning extracts. SUIT, NARODNI PODNIK. Aug. 18, 1955, No. 23777/55. Class 76. Vegetable tanning raw material is extracted with an aqueous solution of an alkali metal or ammonium carbonate, hydroxide, and/or sulphite having a pH value greater than 5, and thereafter the extracted liquor is contacted with a cation-exchanger to remove cations. Before or after the removal of cations, the extracted liquor may be contacted with an anion exchanger to remove anions. In the examples, bark is extracted by heat in a battery of extractors worked on the counter-current system, sodium hydroxide (Examples 1 and 2) or ammonia (Example 2) or sodium sulphite (Example 4) or both sodium sulphite and sodium hydroxide (Example 6) being added to the extractor containing fresh bark. Pectins are removed in Example 3 by preliminary cold extraction with aqueous ammonia. The extracted liquor may be passed through a column of the ion-exchanger or an ion-exchanger may be added to the liquor. There may be used sulphonated phenyl-formaldehyde resins (cation exchangers), amino-phenol-formaldehyde resin (weak anion exchanger), or quaternary pyridinium resins (strongly basic anion exchangers). The invention improves the yields of tanning liquor, especially with materials yielding condensed catechol tannins, and enables more concentrated extracting solutions to be used: by ion exchange, extracts with pH's as low as 2.7 (alkaline extraction) or below 2 (sulphite extraction) may be obtained. The Specification refers to the extraction of pine bark, quebracho, mimosa bark, oak wood, and chestnut wood and the product is particularly useful in producing acidulated mimosa bark extracts for " hot-pit " tanning processes and strongly sulphited bleaching extracts. The extracts may be sulphited with sodium sulphite prior to ion exchange or after alkali extraction. The use of cation exchangers to remove mineral substances such as iron and copper cations from water extracts of raw vegetable tanning materials is acknowledged.
Patent GB-632369-A (GB)
Title: Improvements relating to the conversion of direct current to alternating current
IPC: H03K4/26
Filed: 1946-08-12
Abstract: 632,369. Sawtooth generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 12, 1946, No. 23792.. Convention date, Aug. 11, 1945. [Class 40 (vi)] In a circuit in which a reactive load is connected to the secondary of a transformer and current through the primary is interrupted periodically, causing oscillations to occur across the load, a damping rectifier is connected directly across the load to conduct after each cycle of oscillation. A capacitor is charged from the current through the rectifier, the resulting potential being employed to reduce the voltage demand on the D.C. supply. The scanning coils 19 connected to the line output transformer 16, are shunted by the rectifier 32 and capacitor 40. The potential developed across the capacitor is added to the D.C. supply 12 and feeds both line and frame valves 10, 42.
Patent GB-413138-A (GB)
Title: Rontgen-ray apparatus
IPC: H05G1/00
Filed: 1933-08-28
Abstract: 413,138. R÷ntgen-ray tubes. BORNHARDT, F., 21, Hainertrift, Buchschlag, Hessen, Germany. Aug. 28, 1933, Nos. 23858, 23859, 23860, and 23861. Convention dates, Aug. 27, 1932, Jan. 12, 1933, Feb. 6, 1933, and March 31, 1933. [Class 39 (i).] R÷ntgen-ray apparatus comprises two hightension transformers arranged in containers and delivering the tube current for the Rontgenray tube, both transformers having lead out insulating bushings with tubular extensions enveloping the electrodes of the tube so that no high-tension discharge can take place to any object outside the bushings. The terminals of the tube may be arranged in close proximity to the windings of the transformers. In the form shown the tube 1, Fig. 1, is arranged between the transformers 4, 5 each of which has an insulating bushing 6, 7 with a cylindrical extension 6<a>, 7<a> surrounding the necks of the tube 1. The anode terminal 8<a> of the tube is in metallic connection with the part 9 of the bushing 6 which forms an oil-seal and serves to dissipate heat from the anode to the oil 10 surrounding the transformer 4, the casing of which can be provided with fins to dissipate the heat. The tube may be surrounded by a rigid casing 11 partly constructed of ray absorbing material. The cathode may be heated by current generated in coil surrounding the secondary of the transformer 5. In a modification, one or more valve tubes to check inverse voltages, to enable the R÷ntgen-ray tube to carry higher loads for a given size of focal spot, or to generate high voltages, may be arranged alongside the R÷ntgen-ray tube. Fig. 8 shows a unit with valve tubes 17<a>, 17b arranged parallel to the axis of the tube 1, and condensers forming part of the transformers which comprise a core carrying a primary winding 22<a>, a secondary 23<a>, a condenser 24<a> overlying the secondary and a winding 25 over the condenser to provide current for the valve filament and the filament of the tube 1. Blocks 9, 29 conduct the heat from the tube and valves to oil in the transformer casings and the tube and valves are surrounded with a ray-proof envelope 11 having a window for passage of the rays. Fig. 14 shows the circuit connections of the apparatus, in which the primaries 22<a>, 22b of the transformers 4, 5 are fed from an autotransformer 31 having two sets of tappings 31<a>, 31b the secondaries 23<a>, 23<b> being connected in series and the heating current for the filament of the tube 1 being provided by an additional winding 25<a> on the transformer 5. The ratio of the cathode transformer is so chosen that when the primary voltage is raised, the charge in the secondary voltage is equal to the total charge in the voltage of the transformer secondaries caused by the change in the tube current. Circuit arrangements for a tube employing valve tubes are also given in the Specification.
Patent GB-1154118-A (GB)
Title: Apparatus for Measuring the Hydrogen Concentration in a Substance.
IPC: G01N27/30
Filed: 1968-05-20
Abstract: 1,154,118. Electro-chemical analysis. INTERNATIONAL BUSINESS MACHINES CORP. May 20, 1968 [July 14, 1967], No.23868/68. Heading G1N. A pH meter has glass indicator and reference electrodes. A suitable pK sensitive glass comprises NaO, CaO and silica; a non-pH sensitive glass for the reference electrode comprises Boron oxide, CaO, and silica. Several electrode constructions are illustrated in Figs. 1 . . . 5 (not shown), e.g. Fig. 1 the electrodes may be glass tubes holding an intermediate electrolyte, Fig.2, a thin coating covering a platinum wire; Fig.3, a tubular alumina probe with openings in the side walls holding electrode areas; Fig.4, a hypodermic stainless steel needle covered in insulating material with outer electrode areas; Fig. 5 two tubes joined in series through which the sample flows, contact being made with the external surface by mercury cups. Reference is made to testing blood, cosmetics, and cheese.