baber/WOPTO huggingface dataset:
Patent GB-286572-A (GB)
Title: Improvements in devices for ejecting liquids under pressure
IPC: B60R17/02
Filed: 1927-10-22
Abstract: 286,572. Weenan, F. L. van. Oct. 22, 1927. Actuating by liquid pressure,; spring-actuated pumps; single-acting suction - valveless piston pumps; valvegear.-In apparatus for ejecting lubricant &c. under pressure comprising a plunger working in a chamber 9 and carried by a piston 4 working in a large chamber 2. wherein the plunger is lifted against the pressure of a spring 8 by lubricant supplied to the chamber under pressure through a, pipe 1 so that lubricant enters the chamber 9 through an opening 6 in the plunger and, when the pressure in the pipe 1 is released, the plunger is forced down by the spring 8 so that the liquid in the chamber 9 is expelled at increased pressure through an outlet 16 into the bearing &c. on which the apparatus is mounted, a valve 10 adapted to seat against the lower end of the chamber 9 has a stem 11 projecting through the plunger and provided at its upper end with a collar 12 between which and the plunger a spring 13 is interposed. During the upward stroke of the plunger, the valve is held closed by the spring 13 and, when the plunger reaches the limit of its stroke, the valve is positively held closed by contact of the upper end of the plunger with the collar 12. During the downward stroke, the valve is opened by the pressure generated within the chamber, the plunger being depressed solely by the action of the spring 8. Specification 263,874 is referred to.
Patent GB-1353361-A (GB)
Title: Production of chromium-iii- oxide of low sulphur content
IPC: C01G37/02
Filed: 1971-06-16
Abstract: 1353361 Chromium (III) oxide BAYER AG 16 June 1971 [20 June 1970] 28171/71 Heading C1A Chromium (III) oxide is obtained in the form of an alkaline, aqueous dispersion following reduction by hydrogen, in a continuous process at 900-1600 C., of an alkali metal chromate having a particle size of 10-500 Á. The reduction may be effected in the presence of a gas (e.g. Cl 2 , HCl, Br 2 , HBr, NO, NO 2  or CO 2 ) which reacts with the alkali metal oxide formed in the reduction to give a salt. The reaction zone may be heated by gases combusted inside the reactor or by hot waste gases from a combustion outside the reactor. The alkali metal chromate may be introduced into the reaction zone as a finely divided solid of particle size 10-500 Á or as an aqueous solution spray preferably with droplets of < 100 Á (e.g. 10-30 Á). A preferred starting chromate solution comprises 50-90% by weight Na 2 Cr 2 O 7 .
Patent GB-431823-A (GB)
Title: Apparatus for playing a game of skill
IPC: A63B63/00
Filed: 1934-10-02
Abstract: 431,823. Target games. PULLEN, J. G. S., 6, High Street, Footscray, Sidcup, Kent. Oct. 2, 1934, No. 28224. [Class 132 (ii)] Pivoted cricket stumps a<1>, a<2>, a<3> when struck by a ball thrown or fired from a gun are knocked backwards to various scoring positions depending on the force of impact, the scores being indicated by numbers exposed on the surface k of sectors e<1>, e2, e3 at the lower ends of the stumps. These wooden sectors have metal side plates provided with holes h adapted to be engaged by spring-pressed balls to hold the sectors in the various scoring positions. Half bails d<1>, d<3> are secured to the outside stumps, and may be made of the same metal as the binding rings j<1>, j<3>. The stumps are restored to the upright position by rotating wheels n so as to pull chains m attached to the sectors, or the chains may be connected to a steel rod and a hinged member. Several wickets may be coupled together to form a throwing alley, and a single lever associated with chain-andsprocket gear may be used to reset the stumps. The sector on each stump may carry contacts which complete the circuits of a set of scoring lamps.
Patent GB-329932-A (GB)
Title: Improvements in and relating to coin-freed machines
IPC: G07F11/18
Filed: 1929-09-18
Abstract: 329,932. Turner, H. Sept. 18. 1929. Delivery of articles stored in piles. - A pile support for the remaining articles of a pile d, when the delivery drawer a is drawn out, comprises two tail pieces g pivoted upon the rear of the drawer and adapted, when the drawer is pushed back, to make contact with and ride up the rear wall e of the casing. The outer ends g<3> of the pieces g are offset inwardly and are curved upwardly. The pieces have bosses g<1> through which pivot pins h, screwed into the side walls of the drawer, pass, and the bosses have shoulders g<4> to engage stops a<3> on the drawer, when the pile of articles is being supported.
Patent GB-1499490-A (GB)
Title: Polishing semi-conductor surfaces
IPC: H01L21/304
Filed: 1976-07-07
Abstract: 1499490 Polishing semi-conductor surfaces WACKER-CHEMITRONIC GES FUR ELEKTRONIK-GRUNDSTOFFE mbH 7 July 1976 [14 July 1975] 28326/76 Heading B3D [Also in Division C5] A process for polishing a surface of a semiconductor body comprises a first step of polishing the surface by means of a polishing agent containing one or more of the following: quartz, a silica, a silicate, and a fluosilicate, and a second step of polishing the surface by means of a polishing agent containing, in addition to the component(s) above, from 0À1 to 10% by weight, relative to the polishing agent without additive, of an anionic or non-ionic surfactant that does not contain nitrogen atoms. The second step eliminates roughness of the surface and renders it substantially hazefree and the surfactants used additives are substantially neutral-smelling and non-toxic. The polishing suspensions used in the first step may be the same as those used in the first step of polishing a semi-conductor body as described in Specification 1,418,088. The polishing suspension used in the second step may be the same as that used in the first step with the addition of preferably 0À5 to 5%, by weight, of the anionic or non-ionic non-nitrogen containing surfactant. The anionic surfactant may be salts of long-chain carboxylic acids, sulphuric acid esters, such as alkyl sulphonates and alkylarylsulphonates, and corresponding fluorinated compounds, and non-ionic surfactants may be ethylene oxide adducts, such as nonylphenol polyglycol ether or oxethylated polypropylene glycols, fatty acid monoglycerides, carbohydrate fatty acid esters and fluorohydrocarbons. The time for the first and second steps may be as in the above-mentioned Specification, and the steps may be carried out on separate polishing meachines to avoid contamination. The surfactant may then be removed by washing. The semi-conductor material to be polished may be silicon, germanium, and III-V semi-conductors, such as gallium arsenide and gallium phosphide. In one example, sawn silicon discs were attached by wax to a stainless steel carrier plate and placed on a rotating plate over which a polishing cloth was stretched and a polishing pressure of 0À2 kg/cm.<SP>2</SP> was applied as the plate was rotated at 40 r.p.m. A polishing suspension of 50 litres of waterglass (30% SiD 2 ) and 25 kg. of calcium chloride hexahydrate in 600 litres of water was dripped into the plate at 25 ml./min and polishing effected for 1 hour. Thereafter, 2% by weight nonylphenol polyglycol ether was added to the suspension and polishing effected for a further 5 mins. In another example, discs of gallium arsenide were polished for 1 hour as in the previous example using a suspension of 50 kg. of quartz powder having a particle size of 10 to 40 mm. in 500 litres of water, sodium hydroxide solution being added until the pH was between 9À5 and 10À5. Thereafter, 1% by weight of isododecylbenzene sulphonate was added to the suspension and polishing continued for 7 minutes.
Patent GB-708858-A (GB)
Title: Powder for dry dusting printed sheets
IPC: B41M7/02
Filed: 1951-12-04
Abstract: A dusting powder for drying ink on freshly printed sheets consists of wholly or predominantly of limestone or marble dust having a grain size of not less than 10 microns nor more than 30 microns.
Patent GB-858194-A (GB)
Title: A self-instructional, self-recording and self-scoring device
IPC: G09B3/08
Filed: 1957-09-09
Abstract: 858,194. Educational appliances. VAN VALKENBURGH, NOOGER & NEVILLE Inc. Sept. 9, 1957 [Sept. 25, 1956], No. 28427/57. Drawings to Specification. Class 146(2). An educational appliance having coded responses printed on a suitable medium has key symbols correlating individual responses with respective answers which may be chosen by a student. The responses are coded to advise the student whether the selected answer is correct or wrong. To enable the student to determine his own score, score symbols, correlated with the selected answers, are also provided. Both the coded responses and the score symbols are invisibly recorded on the suitable medium and are capable of being individually and unalterably rendered visible by the student. The questions or problems may be printed on the same sheet as the answers or on a separate sheet. Information or references relevant to the question to be answered may be invisibly recorded on the answer sheet and correlated with the correct answer for disclosure by the student. The appliance may also be adapted to present problems having several inter-related parts such that the correct answer to one part must be given before the next part can be solved. Specification 825,227 is referred to.
Patent GB-706585-A (GB)
Title: Improvements relating to a bottle cap
IPC: B65D55/02
Filed: 1951-12-04
Abstract: 706,585. Stoppers. BOSCHETTI, V. Dec. 4, 1951, No. 28459/51. Class 125 (3) A bottle-closure cap.4 contains a washer 3 of cork or waxed paper and has a rim 5 which is constricted against the underside of a lip 2 on the bottle neck and a portion of the periphery of the rim 5 is extended to form a tongue 6 for tearing off the cap by hand and which tongue is bent to retain an ornament such as leaves B. The ornament may alternatively be formed integrally with the cap or soldered to the tongue.
Patent GB-1020272-A (GB)
Title: Improvements in or relating to clay pipes
Inventor: CARTER RAYMOND CHARLES
IPC: F16L21/00
Filed: 1964-07-10
Abstract: 1,020,272. Clay pipes; pipe Joints. HEPWORTH IRON CO. Ltd. Jan. 12, 1965 [July 10, 1964], No. 28479/64. Headings F2G and F2P. A clay pipe-length, for use with similar pipelengths in forming a sewer &c., has an untapered end 2 carrying a sleeve 6 of slightly resilient synthetic plastics material secured by the forced-fit of a portion 7 of the sleeve initially having an internal diameter less than the outside diameter of the pipe-length, with the remainder of the sleeve projecting from that end forming a socket 10 adapted to receive the unsleeved end 3 of a similar pipe-length. The inside of the socket is tapered outwardly and the unsleeved end of the pipe-length is untapered, or the outside of the unsleeved end of the pipe-length is tapered and the inside of the socket is of uniform diameter. The thickness of the sleeve is such that the sleeve yields at one end to the precise profile of the pipe-length on which it is secured, and such that the sleeve can yield at the other end to the precise profile of a pipe-length to be fitted therein. An adhesive and/or filler or a lubricant filler material may be applied to the pipe-end before application of the sleeve; a dried coating may be provided and rendered semi-liquid or sticky by a solvent or heat.
Patent GB-696993-A (GB)
Title: A fuel-injection pump for internal-combustion engines
IPC: F02M59/26
Filed: 1951-12-05
Abstract: 696,993. Fuel-injection pumps. MOTORPAL, NARODNI PODNIK, and SEDLACEK, V. Dec. 5, 1951 [Dec. 5, 1950], No. 28514/51. Class 102 (i). A piston 1 of a fuelinjection pump has a control edge 2 for varying the cut-off of the injection and beyond the range of this control edge, a groove 5 is provided to permit a retarded beginning of injection and a larger amount of fuel for starting; the lower edge of the groove 5 may be inclined to permit a variable beginning of injection during the starting range. Fig. 4 shows a groove 5 arranged on a piston 1 having an inclined head 4 to vary the beginning of injection.
Patent GB-1367373-A (GB)
Title: Process for the manufacture of butanone selectively monochlorinated or dichlorinated in the 3-position
IPC: C07C45/63
Filed: 1972-06-19
Abstract: 1367373 Chlorination of butanone CONSORTIUM FUR ELEKTROCHEMISCHE INDUSTRIE GmbH 19 June 1972 [21 June 1971] 28514/72 Heading C2C Butanone is monochlorinated or dichlorinated in the 3-position using HCl and oxygen or a gas containing molecular oxygen in the presence of copper chloride and water, the reaction being carried out at a temperature not exceeding 150‹ C. and the [H<SP>+</SP>] ion concentration in the aqueous reaction solution being maintained during the entire reaction either at a value of between 0 and 0À5 gm. ion/litre for a monochlorination or at a value of between 0À5 and 4À5 gm. ion/litre for a dichlorination. At a [H<SP>+</SP>] ion concentration of 0À5 gm. ion/litre the monochlorinated product can be selectively produced at short reaction times and the dichlorinated product selectively produced at longer reaction times.
Patent GB-1358319-A (GB)
Title: Apparatus for effecting contact between gaseous and liquid phases
IPC: B01D3/30
Filed: 1971-06-17
Abstract: 1358319 Contact apparatus SIEMENS AG 17 June 1971 [18 June 1970] 28570/71 Headings B1F and B1R In contacting in a centrifuge a gas with a liquid medium comprising possibly an emulsion or solid suspension, liquid medium is flung from the upper surface of centrifuging element 11 in the form of droplets onto the inner surface of baffle 12. Each centrifuging element may be a fine mesh grid 81, Fig. 5, whose end is slit to form projections. The baffle may be stationary as at 67 in Fig. 3, or may also move with the centrifuging element which is supports, as at 71 in Fig. 4.
Patent GB-535943-A (GB)
Title: Improvements in and relating to electric furnaces
IPC: C03B5/027
Filed: 1939-10-25
Abstract: 535,943. Electric furnaces. BRITISH THOMSON-HOUSTON CO., Ltd. (Ferguson, J.) Oct. 25, 1939, No. 28629. [Class 39 (iii)] [Also in Group XII] An electric furnace for melting and refining glass comprises a central melting chamber 10 with a forehearth or refining chamber 11 at each side connected by submerged channels 23. A discharge opening 15 is provided in the chamber 10, and openings 20 with orifice rings 21 in the chambers 11. Reciprocating plungers 22 are provided to feed the glass for moulded articles. Gas burners 25 may be provided for reheating the glass in the chambers 11. A graphite electrode 26 is supported by a pair of graphite extensions 27 with steel sheathing 28, from each end wall of the chamber 10. The electrodes are spaced from the walls by relatively cool glass which protects the rear faces and the supports. A space 30 in the wall 17 facilitates freezing of glass which might leak through the wall. In a modification, Fig. 6, no forehearths are employed, and a central discharge opening 32 is provided with an apertured disc 41. The electrodes 37 are considerably above floor level so that a relatively hot melting zone is superposed on a cooler refining zone.
Patent GB-714939-A (GB)
Title: Improvements in or relating to sound reproducing devices
Inventor: BIAL WOLFGANG
IPC: H04R17/00
Filed: 1951-12-06
Abstract: 714,939. Earpieces. ROTHERMEL, Ltd. Nov. 25, 1952 [Dec. 6, 1951], No. 28645/51. Class 40 (4) The output of a piezo-electric earpiece is damped, and the crystal protected from shock, by a resilient pad 4 which is interposed between a bender type piezo-electric crystal 5 and a diaphragm 3. As shown in Fig. 1, a rectangular crystal and a sponge rubber pad of somewhat larger dimensions are adhered to the diaphragm which is secured at its edge between a cover plate 11 and a casing 1 with an intermediate rubber sealing band 10. Terminals 6, 7 are provided which may be connected to a high resistance to reduce high frequency response. In a modification, Fig. 2 (not shown) and Fig. 4, a further resilient pad 12 is fitted between the crystal and the casing. A rubber cup 13 may also be substituted for the sealing band and cover the edge of the diaphragm and the crystal, the further pad 12 being optionally provided. According to the Specification the diaphragm may be omitted, the crystal and pad being then mounted on the cover plate.
Patent GB-339025-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/06
Filed: 1929-09-23
Abstract: 339,025. Fitzpatrick, H. D., (Berkel, C. F. M. van). Sept. 23, 1929. Cutting slices in succession.-A reciprocating table slicing-machine wherein the ratchet and pawl feed mechanism is controlled by a cam device mounted on the reciprocating table, is characterized by the cam being adjustable by control means mounted on a stationary part of the machine. As shown, the cam 10 controls the ratchet pawl 6 which carries the cam roller 9. The cam is adjusted angularly on the feed screw 3 by a pinion 12 and a bar 14 having rack teeth 13. The cam is held in the adjusted position by an arm 26 having a spring-pressed ball 27 which engages in one of a series of recesses 28 with numbers corresponding to the slice thickness. The bar 14 has a pin and slot connection with one end of a lever 17 pivoted at 18 to the underside of the reciprocating table], the other end having an extension 19 which lies between stops 20 on a rod 21 adjustably slidable on the stationary base of the machine. The adjustment is effected by a lever 23 having a spring-pressed retaining ball engaging with a series of recesses 25 width numbers corresponding to the recesses 28. The stops 20 position the rack bar 14 and the cam 10 in the desired slice thickness setting. A shroud may be used for the ratchet teeth in place of the cam 10. Specification 19872/08 is referred to.
Patent GB-156966-A (GB)
Title: Improved construction of gramophone record filing cabinet
IPC: A47B81/06
Filed: 1919-11-19
Abstract: 156,966. Ayling, G. Nov. 19, 1919. Contents, delivering.-Gramophone records are stored separately in a cabinet on slides D which are held in position between partitions by rods G, H passing through slots E, F. A flap L bearing indexing tablets may be hinged at the top of the cabinet.
Patent GB-1556748-A (GB)
Title: Composite material for electrical contacts
IPC: H01H1/023
Filed: 1976-07-09
Abstract: The composite material (1) bears on one side a bondable coating (2) and consists of silver metal oxide. At least three layers are internally oxidised and are welded together and to the bondable coating by roll bonding cladding. The roll bonding cladding of a plurality of individual sheets has the effect of reducing the measurable variation in the size of the incorporated particles in dependence on the starting thickness and final thickness. This results in a uniform contact behaviour over the entire thickness of the material. Since the bondable coating is generally very thin in relation to the overall thickness, virtually the entire contact height can be used for erosion, thereby achieving a longer service life. <IMAGE>
Patent GB-793014-A (GB)
Title: Improvements in and relating to automatic air flow controllers
Inventor: LEECH DONALD JOHN
IPC: G05D16/10
Filed: 1954-10-06
Abstract: 793,014. Fluid-pressure servomotor-control systems; valves. NORMALAIR, Ltd. Sept. 30, 1955 [Oct. 6, 1954], No. 28760/54. Class 135. An air flow controller suitable for use in aircraft cabin pressurizing systems consists of a valve sleeve 6 coacting with ports 7 in a cylinder 8 and connected by a tubular part 4 with a piston 1 which is subject on one side to the pressure of compressed air entering the controller at 12 and on the other side to a lower pressure. The lower pressure is that of air after passing through a restricted passage 14 in the piston 1 to a cylinder 3 in which the piston slides but before passing through openings 15 and a fixed tube 2 to a passage 17 terminating in an adjustable restriction 22 which discharges to the cabin space. The flow that the controller maintains substantially constant is selected by adjusting manually the orifice 22. The manual flow selection may be over-ridden by a temperature-responsive device. Also the restriction 22 may be arranged to be closed by a solenoid &c. in the event. of the cabin pressure dropping below a predetermined magnitude, for example in the case of a damaged cabin casing, so that the controller delivers maximum flow. Should the cabin altitude rise unduly a solenoid 25 causes a valve member 26 to engage a seating 27 which also causes maximum flow through the controller. When either the restriction 22 or the valve member 26 is closed the only escape for air from the cylinder 3 is through a fixed bleed 24. The piston and valve member are urged to the right by a pair of springs 20, 21 so arranged as to provide a variable rate.
Patent GB-1181733-A (GB)
Title: Insulating Support for Electrical Connectors
Inventor: RAYMOND FRANCOIS HENRI
IPC: H01R13/22
Filed: 1967-06-22
Abstract: 1,181,733. Connectors. ETABS. F.R.B. 22 June, 1967 [22 June, 1966], No. 28834/67. Heading H2E. An insulating support for a connector comprises a two piece block 1, 2 having co-operating " saw-tooth " edges with cylindrical cavities 5 formed parallel to ridges 4 and female contacts 6 fitted in the cavities. The contacts 6 may be cylindrical (Figs. 2 and 3, not shown) or toroidal annular springs (Figs. 7 and 8, not shown). There may be pairs of channels 12 connecting the cavities to the faces 8 and 9 of the block and both channels of a pair may start from one end of a cavity (Figs. 2 and 3, not shown) or they may be staggered. Wires (13) (Figs. 2 and 3, not shown) from channels 12 may be connected to printed circuits which may be on faces 8 and 9.
Patent GB-795933-A (GB)
Title: Improvements relating to sparking plugs
IPC: H01T13/54
Filed: 1955-10-10
Abstract: 795,933. Sparking-plugs. JET IGNITION CO., Inc. Oct. 10, 1955 [Oct. 8, 1954], No. 28859/55. Class 7(4) In a sparking-plug of the type comprising an ignition chamber 14 in the end of which is disposed an insert 19 having helical passages establishing communication with a cylinder whereby combustible mixture entering the chamber during the compression stroke is caused to swirl and after ignition re-enters and after ignition re-enters the cylinder to ignite the main charge, the insert 19 is. cylindrical and has helical grooves 21 opening peripherally and also at the opposite end faces of the insert, a constriction of the communication between the cylinder and passages formed between the grooves and the inner wall of the plug body 12 being provided by an inclined shoulder 22 terminating in a small-diameter passage 23. As shown, a bevelled portion 24 of the insert seats on the shoulder 22; in a modification, Fig. 5 (not shown), the insert instead of being bevelled, is cylindrical throughout its length and terminates where the shoulder 22 commences. Electrodes 17, 18 are carried by an insulator 11 and insert 19 respectively.
Patent GB-1236802-A (GB)
Title: Composite material
Inventor: CANDEL ALFRED ACHILLE
IPC: D04H11/00
Filed: 1968-06-18
Abstract: 1,236,802. Foam laminates. A. A. CANDEL. 18 June, 1968, No. 28872/68. Addition to 1,214,306. Heading B5N. [Also in Division B2] A felted composite material is made by applying fibrous sheet material to at least one face of a microporous foam polyurethane material, which face has been rendered adhesive by heating to melt it, e.g. by a gas flame. The fibres may comprise natural and/or synthetic fibres. Oriented fibres can be used. After formation the material can be passed through a cooled calender. The following fibrous materials are used in examples: (1) acrylic sheet, (2) fibranne sheet, (4) mixed fibranne/wool sheet. If only one side of the foam is treated, the other side may be lined by conventional methods with paper or fabric.