baber/WOPTO huggingface dataset:
Patent GB-241226-A (GB)
Title: An apparatus for galvanising iron plates by the lead-zinc process
IPC: C23C2/40
Filed: 1925-10-12
Abstract: 241,226. Passeker, R. Oct. 11, 1924, [Convention date]. Galvanizing.-In the galvanizing of sheets by the lead-zinc process, the sheets are fed in the direction of their breadth through an opening a through a layer p of sal-ammoniac into soft lead o, where the sheets are first coated with lead. The sheet standing in the lead bath o is then pressed by forked pokers around angular guides b and released, the sheets being raised by the upward drive of the lead between the guides b and parts c up against steel fingers e. By the movement of a weighted lever g connected to arms carrying the fingers e, the latter are withdrawn and the sheet is driven upwardly between adjustable rollers f immersed in molten zinc n, the rollers, after pressing off the excess zinc, delivering the coated sheet from the apparatus. After the plate passes through the rollers f the fingers e are pressed into contact again by the weights on the lever g, the latter resting on a square spindle i which is in two parts connected by a coupling which is released by a lever k when it is desired to deal with small-sized sheets.
Patent GB-664666-A (GB)
Title: Improvements in self-centering chucks
IPC: B25D17/08
Filed: 1949-10-04
Abstract: 664,666. Chucks. FUEHRER, G. H. Oct. 4, 1949, No. 25465/49. Class 83 (iii). A self-centring chuck is provided with an axial aperture to accommodate an article, e.g. a drilling tool, and comprises jaws 20, 21 which are pivoted about bolts 10 and straddled by the offset arms 18, 19 of a yoke member 17, comprising abutment surfaces engaging the jaws, one end of the yoke member having an internally screw-threaded bore 24 to receive a screw element 25 which is rotatable to vary the gap between the jaws. The jaws are biased to widen the gap between them by means of adjustable spring-pressed elements 30, 31. The bolts 10, which have flanged hollow heads, secure a flanged collar S and a cover-plate 12 to the chuck body 1. Resilient sleeves 22 and steel bushings 23 are interposed between the jaws and the bolts. Segmental rubber cushioning elements 8 are provided between the collar 5 and a flanged portion 3 of the chuck body, the portion 3 being formed integrally with a screwthreaded sleeve 4. The chuck body has two diametrically-opposed tongue members which engage slots in the edge of the cover-plate to facilitate alignment and prevent rotation of the cover-plate on the body. In a modification, Figs. 9 and 10 (not shown), the rubber cushioning elements are replaced by compression springs mounted between cylindrical elements integrally secured to the collar and the coverplate. In a further modification, Figs. 11 and 12 (not shown), a resilient annulus, or a compression spring, is located between the collar, which is modified, and the rear end of an internally screw-threaded feed sleeve of the chuck.
Patent GB-706268-A (GB)
Title: Improvements in or relating to water and the like taps or valves
IPC: F16K21/10
Filed: 1951-10-31
Abstract: 706,268. Slow-closing valves. SHEARDOWN, J. I Oct. 31, 1952 [Oct. 31, 1951], No. 25471/51. Class 135 A non-concussive tap of the kind having a valve member 20 opened against a spring 30 by a push-knob 11, or lever, quick-pitch screw &c., and closed under the control of a restricted passage 26 and cup-washer 23 carried by the valve member, a tubular element 16 in which the cupwasher slides has a peripheral flange 18 seating on an internal flange 19 of the casing and secured by a screwed valve head 5 on which the valve seating 7 is formed. Sealing washers 32, 33 are fitted. The body of the tap is inclined at an angle of 20 degrees to 45 degrees to the inlet 3.
Patent GB-512289-A (GB)
Title: Soap tablets
IPC: C11D17/00
Filed: 1938-09-01
Abstract: 512,289. Soap tablets. EGLI, .T., and STAUBLI, M. Sept. 1, 1938, No. 25573. Convention date, Sept. 1, 1937. [Class 91] A soap tablet consists of a sand-containing soap 1 inserted in a depression in the face of a tablet of lathering soap 2, which forms an endless border 3 around the sandcontaining soap. The tablet may be formed in a single moulding operation, or the sandcontaining soap may be cemented in position by a waterproof adhesive. A bout equal amounts of the two soaps are used.
Patent GB-306916-A (GB)
Title: A new or improved process for the treatment of wool
IPC: D01C3/00
Filed: 1927-09-28
Abstract: 306,916. Walsh, V. G., and Gratze, E. V. Hayes-. Sept. 28, 1927. Animals, washing. - Wool. fur, &c. ma be scoured on the living animal by treatment with alkali-free, water containing a sulphonated vegetable oil, preferably castor oil sulphonated with sulphuric acid. Reference has been directed by the Comptroller to Specifications 1623/93, [Class 15, Bleaching &c.], 137,747 and 183,270 (as open to inspection under Sect. 91 of the Acts). [all in Class 15 (i), Dyeing &c., Apparatus for].
Patent GB-1340904-A (GB)
Title: Voltage-stabilized rectifier device
IPC: H02M7/06
Filed: 1971-04-19
Abstract: 1340904 Rectifying STANLEY ELECTRIC CO Ltd 19 April 1971 [20 Aug 1970 14 Dec 1970] 25591/71 Heading H2F [Also in Division H1] A bridge rectifier circuit has at least one element replaced by a voltage-stabilizing element, such as a Zener diode D7 or silicon controlled rectifier serving when the output voltage of the bridge exceeds a predetermined value to stabilize such output voltage, the elements being in the form of semi-conductor chips mounted on a supporting structure -which includes a heatdissipating fin 1 provided with recesses each of which receives a respective element. The invention is applicable to use with the alternator of a motor cycle, alternate half cycles of the output being clipped at the Zener breakdown voltage when the engine is running at high speed. In Fig. 9 (not shown) the Zener diode D7 is replaced by a SCR arranged so that the circuit operates on full waves at low input voltages and half waves at high input voltages.
Patent GB-1158213-A (GB)
Title: Closure Valve for Pressurised Spray Packs, particularly those made of Plastics Material.
Inventor: SIEBEL CARL GISBERT
IPC: B65D83/14
Filed: 1967-06-02
Abstract: 1,158,213. Valves. C. G. SIEBEL. 2 June, 1967 [4 June, 1966], No. 25632/67. Heading F2V. [Also in Division F1] A valve assembly for a pressurized spray container 1 comprises a rigid upstanding rod 7, which carries a seat 6 and is secured to a rigid base-plate 2, and a tubular member 5, whose uppermost end constitutes the valve closure member and which is formed integrally with a diaphragm 4, the base-plate and diaphragm being secured to the neck of the container. A flange 13b of a spray head 13 rests on member 5 and serves, when the head is depressed, to move the closure member 5 away from the seat 6. Downstream of the flange there is disposed, within the head 13, a baffle member 9 comprising a cupshaped member having equiangularly spaced and radially inwardly extending projections 10 and 11 respectively, which engage the circumferential surface 8 and, when the head is depressed, the end surface 16 of rod 7, the baffle having a constriction 12, which communicates with expansion chambers 14, 14<SP>1</SP> and an outlet opening 15.
Patent GB-1340284-A (GB)
Title: Commutator for an electrical machine
IPC: H01R39/04
Filed: 1972-06-01
Abstract: 1340284 Making commutators BROWN BOVERI & CO Ltd 1 June 1972 [3 June 1971] 25668/72 Heading B3A [Also in Division H2] In making a commutator (see Division H2) in which the segments are held together by a shrink ring, a shrink ring is first totally covered with a layer of insulation, then heated to expand its diameter and finally shrunk on to an assembly of segments by allowing it to cool. The insulation may be a lapped polyimide tape which may have a coating of synthetic fluorocarbon resin. There may in addition be a layer of mica or mica-loaded paper. Further layers of mica or mica-loaded paper and electrically insulating plastics material may be disposed between the insulated shrink ring and the segments.
Patent GB-1334345-A (GB)
Title: Etching
IPC: H01L23/29
Filed: 1972-06-02
Abstract: 1334345 Etching INTERNATIONAL BUSINESS MACHINES CORP 2 June 1972 [17 June 1971] 25810/72 Heading B6J In order to etch depressions down to a predetermined depth in a substrate, which may comprise one or more layers, particularly a silicon dioxide layer of a semi-conductor device, the substrate is covered with a photoresist which is then exposed and developed, and the substrate is etched to a depth less than the predetermined depth. The remaining photoresist is then removed with a solvent, and the substrate is etched to the predetermined depth with the same or a different etchant. The first etchant may be commercial hydrofluoric acid and the second high purity ammonium fluoride buffered hydrofluoric acid.
Patent GB-1145837-A (GB)
Title: A.c. amplifiers
Inventor: ADAMS DEREK STANLEY
IPC: H03F3/30
Filed: 1965-06-18
Abstract: 1,145,837. Transistor amplifying circuits. JOSEPH LUCAS (INDUSTRIES) Ltd. 16 May, 1966 [18 June, 1965], No. 25828/65. Heading H3T. A push-pull amplifier is provided with means limiting the instantaneous value of the drive in the event of the impedance of the load falling below a predetermined level. Signal is applied to the base of transistor 12 which with transistor 18, the base of which is earthed, constitutes an emitter coupled pair coupled by resistor 13. Transistors 12, 18 drive via transformer 16 the base emitter paths of a pair of series-connected output transistors 23, 24 operating in class B into a common load 30 via transformers 27, 29. The maximum drive current is limited by common resistor 13. In addition a voltage proportional to that across the load 30 is developed across a tertiary winding 31 on the output transformer and is rectified by bridge rectifier 32, being applied to the base/ emitter circuit of transistor 18 via resistor 33, in such a manner that the drive is limited if the impedance of the load 30 is unduly reduced.
Patent GB-851967-A (GB)
Title: Improvements in log barking machine
IPC: B27L1/04
Filed: 1959-07-28
Abstract: 851,967. Removing bark from logs. CANADIAN INGERSOLL-RAND CO. Ltd. July 28, 1959 [May 4, 1959], No. 25857/59. Class 145. A log-barking machine comprises feed and discharge conveyors 26, 32 and a rotary barking drum 14, the three units being driven by a belt 42 and the power-take-off 38 of the truck 10 on which the machine is mounted. The belt 42 is tensioned by an idler wheel 86 on a lever 82 locked in tensioning position by a rod 94 and over-centre lock 92 but, on release of the lock by pulling a cord 102 which extends to various parts of the machine, a spring 96 moves the lever so that the belt slips and a brake shoe 84 at the other end of the lever is applied to the driven pulley 46. To ensure quicker halting of the conveyers, a one-way ratchet clutch 58 in the drive to the barking drum allows the latter to rotate after the brake is applied and also allows the drum to be rotated in one direction when the conveyers are inoperative.
Patent GB-858675-A (GB)
Title: Improved method for removal of solids from polymer solutions whereby low-ash contentpolymers may be obtained
IPC: C08F10/00
Filed: 1957-08-16
Abstract: Suspended solids are removed from a solution of a polymer in a hydrocarbon, by passing the suspension through a batch type precoat filter (e.g. a Vallez filter) and then through a cartridge type filter (e.g. a "Sparkler" (Registered Trade Mark) filter). The process is illustrated in connection with the removal of catalyst particles, e.g. of 0,3 to 100 microns, from polyolefin solutions obtained by polymerization of olefins in hydrocarbon diluents using chromium oxide type catalysts, e.g. as described in Specifications 790,195 and 804,641.
Patent GB-826800-A (GB)
Title: Improvements in or relating to semi-conductor devices
Inventor: RAYMOND FREDERICK JOHN
IPC: H01L29/00
Filed: 1957-08-16
Abstract: 826,800. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Aug. 16, 1957, No. 25928/57. Class 37. In making a semi-conductor junction a plate of semi-conductor material 1, Figs. 1, 2, of one type is heated and immersed in a bath of molten alloy 11. The alloy has no semi-conducting properties but contains a semi-conductor material and an impurity characteristic material of opposite type. Examples are : (a) 87 % gold, 13% germanium with N-type impurity antimony; (b) 58% germanium, 42% aluminium, itself a P-type impurity. The plate covered with alloy is then cooled so that the alloy solidifies outwardly from the plate, either by withdrawing it from the bath, as shown, or by controlling the bath temperature, Fig. 11 (not shown), the result being that impurities pass to the plate so as to form thereon an intermediate layer 21, Fig. 5, of opposite conductivity type within an ohmic conducting alloy sheath 11. Slices may be used unaltered as a unipolar device with source, drain and gate connections S, D, G, Fig. 5; sliced across the middle as a PNP or NPN junction transistor, Fig. 7; or sliced in half as a PN junction diode, Fig. 9. In the form shown in Figs. 1, 2, the plate 1 is supported by indentations 4, 5 within a tube 2 held by spring clips 8, 10. The tube is movable into the bath 14 sufficiently to fill by capillary action and then out of it into heating element 16. In another form, Fig. 10 (not shown), the plate is unenclosed and a narrow aperture removes unwanted alloy when it is withdrawn through it from the bath.
Patent GB-819785-A (GB)
Title: Improved method of and apparatus for bringing gas and liquid into intimate contact
IPC: B01F3/08
Filed: 1955-09-12
Abstract: 819,785. Contacting gases with liquids. ENTREPRISE RENE ET JEAN MORITZ. Sept. 12, 1955 [Sept. 11, 1954; Aug. 30, 1955], No. 25979/55. Class 55 (2). A gas-liquid contact apparatus comprises a container d (Fig. 2) for liquid, a gas inlet tube g within which is mounted a device with blades a rotatable to circulate liquid in the container and devices j for heating or cooling the liquid as desired, the liquid being drawn downwardly through a tube f and urged outwardly together with the gas through baffles b carried by the blades a and stationary baffles c. In modifications the liquid circulated in the container may be drawn from near the base of the container or the tube f may extend above and below the rotating blades a. In a further modification (Fig. 8) the device rotated comprises a tube with nozzles u and u1 which eject the circulated liquid into members c<SP>2</SP> and in which it mixes with gas entering by the inlet g.
Patent GB-802099-A (GB)
Title: Paving and method of preparing same
Inventor: NAGIN HARRY SOLOMON
IPC: E01C7/35
Filed: 1956-08-24
Abstract: 802,099. Road &c. surface treatment. RELIANCE STEEL PRODUCTS CO. Aug. 24, 1956, No. 26000/56. Class 107 The wearing surface of a road &c. is formed by coating with a slurry of sandlike aggregate and a liquid thermosetting resin, the particles of aggregate being totally enveloped in resin, so as to provide a level surface, spreading dry granular aggregate over the surface thus prepared, and removing unattached particles of the dry aggregate after the resin has been cured. In particular epoxy resins are employed with a catalyst, and sand is used for the first layer and hard abrasive grains for the dry aggregate.
Patent GB-264570-A (GB)
Title: Folding box
IPC: B65D5/42
Filed: 1925-10-19
Abstract: 264,570. Rogers, F. H., (Hesse Ges., J.). Oct. 19, 1925. Boxes made from special blanks; boxes combined with toys; handles. - In a box formed from a cardboard &c. blank comprising four main panels f, d, g, a adapted to form the sides and ends of the box, and wherein one or both of the panels forming the long sides is or are provided with flaps b, c adapted to form the top and bottom, one or more of the panels is or are provided with extensions h, i constituting useful or decorative articles. In the form shown the extensions h, i represent, with the panel d, a girl's head; alternatively the panel and flaps may be ornamented to represent a railway vehicle. In another form flaps at the top of two of the panels have portions cut out on three sides to form the top, the remaining portions of the flaps forming a handle for carrying the box. Reference has been directed by the Comptroller to Specification 242,758.
Patent GB-1536417-A (GB)
Title: Cylinder and piston assemblies
IPC: F16J10/02
Filed: 1975-06-19
Abstract: 1536417 Fluid-pressure actuators EMHART INDUSTRIES Inc 27 May 1976 [19 June 1975] 26114/75 Heading F1D As a piston 4, Fig. 1, approaches the end of the stroke an exhaust port 9 is closed by the end 26 of a slidable member 21 which extends through the piston. Subsequently a further exhaust port 10 is closed by a similar member 28. This retards the piston towards the end of the stroke. The members are automatically reset for the return stroke. The ports are closed in order of decreasing size. As shown, ports 10, 11 have adjustable throttles 16, 17 and port 9 may also be adjustable. Fig. 4, (not shown), illustrates the use of two such actuators in a glass working machine.
Patent GB-1210025-A (GB)
Title: Method and apparatus for graph plotting
Inventor: EDWARDS REGINALD WALTER
IPC: G01M3/00
Filed: 1969-05-22
Abstract: 1,210,025. Electric selective signalling. GENERAL DESCALING CO. Ltd. 22 May, 1969, No. 26266/69. Heading G4H. [Also in Division G1] Apparatus for plotting one parameter against another comprises a strip chart recorder 40 including a chart drive and a recording pen movable across the chart 18 in response to an applied signal and a counter 30 receiving first and second signals corresponding to increments in each parameter respectively, the counter counting the second signals to generate an analogue signal proportional to the magnitude of the count and being reset to zero by the first signals. The apparatus may be used in the pressure testing of pipes &c., a pump 2 being connected by a tube 4 to the pipe whilst a conventional pressure gauge 22 and a deadweight pressure gauge measure the changes in pressure in the pipe due to the pumping of water into the pipe. Each stroke of the pump increases the volume of the pipe by a fixed amount, the number of strokes being registered on a counter 8 connected to a transmitter 26 in the form of a pair of contacts which are closed at each stroke of the pump. Volume signals are thus fed to the counter 30 and to a storage register 32 in the form of a uniselector switch, each signal stepping the uniselector forward by one contact. The uniselector switch contacts are connected between a chain of resistors which form a digital/analogue converter 34 connected to a range selector switch 38 and a stabilized power supply 36. The output from the converter 34 is applied to the pen drive of the recorder. Pressure signals corresponding to predetermined fixed movements in the pressure are applied to a triggering unit 42 either manually by a push-button PB2 operated each time an additional weight is placed on the gauge 24 or by a detector 28 transmitting a signal in response to the weight increments. On receipt of a signal the triggering unit 42 resets the register 32, the counter 30 and hence the recorder pen to its zero position. The triggering unit also actuates a chart drive control 44 to step the chart by an amount determined by a selector 46. The pen thus plots a graph of the increase in volume of the pipe for each pressure increment. An independent reset 52 in the form of a pushbutton is provided for the counter 30 whilst the recorder has a pen overtravel alarm 48 and an alarm acknowledge switch 50.
Patent GB-1431822-A (GB)
Title: Low calorie dry sweetener composition
IPC: A23L27/30
Filed: 1973-06-01
Abstract: 1431822 Artificial sweeteners ALBERTOCULVER CO 1 June 1973 26281/73 Heading A2B An artificial sweetening composition in dry pulverulent form comprises 0.5 to 10% by weight of aspartyl phenylalanine methyl ester the remainder of the composition being a starch hydrolysate having a D.E. of 20 or less, and not more than 4% moisture. The composition is made by mixing an aqueous solution of the hydrolysate at 30 to 80‹C with an aqueous solution or slurry of the dipeptide at up to 40‹C in appropriate proportions, and drying within 5 minutes, e.g. by spray-drying. The mixture may be passed through a preheater before spray-drying. The starch hydrolysate may be corn or mils e.g. waxy maize or waxy milo starch. The composition may additionally include minor portions of Na or Ca saccharin, cyclamates, gums, thickeners, stabilisers, surfactants, preservatives and flow conditioners. Potassium sorbate is mentioned in an example. Hydrogen peroxide or glucose oxidase may be added to avoid discoloration. Reference has been directed by the comptroller to Specification 1152977 and 1256995.
Patent GB-371748-A (GB)
Title: Improvements in boring and like machine tools
IPC: B23Q11/08
Filed: 1931-09-19
Abstract: 371,748. Catching and removing cuttings. EVANS, W. E., 27, Chancery Lane, London.-( S c h i e s - Defries Akt.-Ges.; D³sseldorf, Germany.) Sept. 19, 1931, No. 26297. [Class 83 (iii).] The boring-bar of a cylinder boring or like machine, having feed screws for a tool sleeve mounted in recesses along its length, is protected from turnings by a sheath 2, of elastic material such as leather, which folds or unfolds in concertina form as the tool sleeve 4 is moved along the rod. The sheath is in two parts the ends of which are secured to the sleeve, the upper end of the rod and to a fixed element 5 respectively, an annular space to take the sheath being provided between the main spindle 6 and the rod.
Patent GB-866916-A (GB)
Title: Arrangements for the simultaneous control of the direction of lifting elements for direct-lift aircraft
IPC: B64C29/00
Filed: 1957-08-20
Abstract: 866,916. Gyroscopic apparatus. SEBAC NOUVELLE S. A. Aug. 20, 1957 [Sept. 13, 1956], No. 26317/57. Class 97(3) [Also in Group XXXIII] Gyroscopic apparatus for controlling directionally adjustable nozzles on an aircraft power plant comprises four gyros 24 mounted on mutually perpendicular shafts 25 located in a common plane to be driven through bevel gears 22, 23 from an air driven turbine 20, a further gyro 27 being mounted on the turbine shaft 21. The whole is mounted in a casing 30 for pivotal attachment to the aircraft by means not shown. The casing 30 has an upward extension pivotally connected at 33 to a control column 17 such that relative angular movement between the airframe and casing 30 automatically operates column 17 and related mechanism 1 to restore the aircraft to its original attitude. The gyro system may be locked to the airframe by clutches 31, 32.