baber/WOPTO huggingface dataset:
Patent GB-578809-A (GB)
Title: Improvements in gear pumps
IPC: F04C15/00
Filed: 1944-02-21
Abstract: 578,809. Gear pumps. PRECISION DEVELOPMENTS CO., Ltd., and OLAH, G. Feb. 21, 1944, No. 3217. [Class 110 (ii)] Excessive hydraulic pressure due to trapping of fluid between gear teeth is avoided by arranging that, whenever two pairs of teeth are simultaneously in contact, the contact point on the entering pair of teeth is nearer to the pitch point than the point at which the teeth of the preceding pair are simultaneously in contact with each other. For involute gears the addendum of the driving gear is made greater than that of the driven gear. Hydraulic sealing between the non-driving tooth flanks is prevented by provision of backlash or by chamfering the edge of the flanks. The driving gear 11 is integral with a hollow shaft which is journalled in two central sleeves 10, 12. The driven gears 51, 52 rotate on stationary shafts 71, 72 located in sleeves 4, 6 and 14, 16 respectively. The sleeves are located in three interconnecting bores, in the main body 1, (which also serve as enveloping surfaces for the outer peripheries of the gears. Inlet slots I<1>-I<4> connected to an inlet hole 44 and outlet slots O<1>-O<4> connected to an outlet hole 45, equalize the fluid pressures on the gears. Neck portions on the sleeves and countersinks in the end covers 2, 21, together form annular spaces 42 which are interconnected by means of grooves 41 formed in the end covers, Fig. 7. Cross bores 43 connect the grooves in one end cover with the inlet slots I<1>, I<2> and the grooves in the other end cover with the outlet slots O<1>, O<2>. Leakage is collected into a hollow stud 18 from grooves 46 worked all round the gears in the main body. The driving shaft 31 is supported in a self-aligning ball-bearing 35 and is connected to gear 11 by means of a dog-clutch 37.
Patent GB-140167-A (GB)
Title: Securing glass panes in metallic window frames
IPC: E06B3/54
Filed: 1919-02-10
Abstract: 140,167. Motteau, A. Feb. 10, 1919. Window frames; glazing windows.-Window panes are retained in position in metallic frames by strips 1 of metal arranged in slots in any part of the frame bars. Where slots 1<a> or 6 are provided for assembling the frame bars, they may be utilized. Fig. 3 shows the strip placed in a slot 6. In cases where, owing to the tool employed, the slots 1<a>, Fig. 1, are wide, the strip 1 is corrugated, as shown at 2, to enable it to be held firmly in position. Specification 123,004 is referred to.
Patent GB-585135-A (GB)
Title: Improved process for the filling of leather
IPC: C14C9/00
Filed: 1945-02-09
Abstract: Aqueous dispersions of a solid, finely-divided polymerized ester of acrylic or methacrylic acid, or of a water-insoluble, solid, finely-divided interpolymer of the ester with one or more ethylenically unsaturated polymerizable compounds, in which the ester is present in preponderating amount, are used for the filling of leather (see Group VIII).  The methyl, ethyl or propyl esters may be used, and the interpolymers may comprise a different ester of the acids, styrene, vinyl chloride, p  acrylonitrile, or a fumaric acid ester.  The dispersions may be applied in conjunction with leather-treating solutions containing chrome sulphate powder, common salt and sodium bicarbonate.
Patent GB-1366624-A (GB)
Title: Electric contact devices
IPC: A22C13/00
Filed: 1973-01-23
Abstract: 1366624 Meat casing KUREHA KAGAKU KOGYO KK 23 Jan 1973 24 [Jan 1972] 3332/73 Heading A2B A tubular casing film having good adherence to kneaded meat products including animal, bird, or fish consists essentially of: an inner film of a resin composition (A) principally composed of a suspension-polymerized terpolymer of vinylidene chloride, vinyl chloride, and a substance polymerizable therewith selected from the group consisting of unsaturated organic acids and derivatives thereof, having within the molecule at least one acid radial or acid amide radical; and an outer film of a resin composition (B) principally composed of a suspension-polymerized copolymer of vinylidene chloride and vinyl chloride containing no unsaturated organic acids or derivatives thereof copolymerizable with vinylidene chloride and vinyl chloride such as are used for the resin composition (A).
Patent GB-682367-A (GB)
Title: Improvements in stirring and/or beating devices
Inventor: KARLSTROEM JOHAN FREDRIK ROBER
IPC: A47J43/044
Filed: 1951-02-12
Abstract: 682,367. Mixing appliances. AKTIEBOLAGET ELEXTROLUX. Feb. 12, 1951, No. 3354/49. Class 86 In a household mixing machine a 'stirring or beating device mounted on a swinging arm 'and disposed within a rotary receptacle comprises a stirring or beating element connected with a driving wheel and having an intermediate wheel . through which the driving wheel derives rotary motion directly from the receptacle. A holder 17, Figs. 3 and 4 is located upon a pin 16 depending from the spring loaded arm 13 and is prevented from rotating thereon by an integral arm 31 upwardly extending to engage the arm 13. The mixing element 27 has an upper sleeve 30 which is a detachable driving fit upon a roller 22 rotatable in the holder 17. A link 25 is pivoted to the holder 17 at 26 and at its free end carries a pair of rigidly connected freely rotatable rollers 20, 21, the arrangement being such that the spring arm 13 urges the roller 20 into functional engagement with the rim of the rotating receptacle 11 and holds the lower roller 21 in frictional engagement with the roller 22 so that the mixing element 27 derives rotation from the rotation of the receptacle 11. In a simplified embodiment, Figs. 5-7, (not shown), a single roller is used in the place of the two rollers 20, 21.
Patent GB-1216192-A (GB)
Title: Air separation process
Inventor: AITKEN WILLIAM HARROLD
IPC: F25J3/04
Filed: 1967-01-23
Abstract: 1,216,192. Cold separation of air. BRITISH OXYGEN CO. Ltd. 22 Jan., 1968 [23 Jan. 1967], No. 3354/67. Heading F4P. An air separation process for the simultaneous production of impure (75%) and pure (99À5%) gaseous oxygen comprises dividing a lowpressure feed air stream into a major portion which is cooled in exchanger 2 traversed by the separation products of a conventional double column 8, 10 and is in part fed to column 8 and in part expanded in a turbine 16 and fed to column 10, and into a minor portion which is further compressed at 3 and divided into a major portion which after cooling in exchangers 5, 6 is expanded at a valve 7 and added to the feed air entering column 8 and into a minor portion which is expanded in a turbine 17 and added to that portion of the major air feed entering turbine 16 and passing to column 10, passing liquid withdrawn from the top and bottom of column 8 through expansion valves 12a, 11 into a third column 9 having a reboil coil traversed by a portion of the feed to column 8 and withdrawing from column 9 pure liquid oxygen at least part of which is pressurized at 13 and vaporized at 5, 6 while the remainder if any is withdrawn at 14 to store; the said parts of liquid oxygen being in a ratio determined by the ratio of air expanded in turbines 16, 17 and controlled by flow valves 19, 18. For production of maximum of pure gaseous oxygen and no pure liquid oxygen valve 18 is closed and valve 19 open whilst for production of maximum liquid oxygen valve 18 is open and valve 19 closed.
Patent GB-777931-A (GB)
Title: Improvements in and relating to hot air engines and refrigerating machines
Inventor: HEYWOOD HAROLD
IPC: F02G1/043
Filed: 1952-02-08
Abstract: 777,931. Hot air engines. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 6, 1953 [Feb. 8, 1952], No. 3396/52. Class 7 (1). [Also in Group XIII] When the working fluid passes from the regenerator to the hot space and from the hot space to the regenerator it only passes through the heater once and when the fluid passes from the regenerator to the cold space and from the cold space to the regenerator it only passes through the cooler once. In Fig. 1 the working medium enters a hot space 18 by way of a heater 15 and non-return valve 27. It is returned to a regenerator 24 by way of a non- return valve 25. Similarly the medium enters a cold space 23 through a cooler 20 and non- return valve 28 but returns to the regenerator through a non-return valve 26. A heated jacket 14 is associated with the cylinder 7 and a cooling jacket 19 is associated with the cylinder 8. The construction may be modified to use a permanent gas as the heating fluid. The non-return valves 27, 28 may be dispensed with. The by-pass valves may be disposed some distance from the cylinder ends so as to provide entry into the regenerator slightly beyond the entrances and exits of the regenerator. In Figs. 2 and 3 the engine comprises hot spaces 31, 32 in one cylinder and cold spaces 33, 34 in a second cylinder. The working medium from a regenerator 35 passes into the hot space 31 by way of a heater 36 and port 50 (Fig. 3). It returns to the regenerator by way of a non-return valve 51. The cold spaces are also provided with by-pass valves. Fig. 5 shows the construction of the non-return valves which comprise red or flap valves 52. The regenerator comprises alternate corrugated and flat thin plates. The invention is applicable to multi-cycle engines. Auxiliary pumps for raising the mean working pressure may be provided.
Patent GB-265961-A (GB)
Title: Improvements in or relating to means for securing railway and like rails
IPC: E01B9/32
Filed: 1927-02-07
Abstract: 265,961. Vereinigte Stahlwerke Akt.- Ges., (Assignees of Bochumer Verein f³r Bergbau und Gusstahlfabrikation, and Weber, F. W.). Feb. 9, 1926, [Convention date]. Sleepers, metal, and securing rails thereto ; chair plates ; chairs, with separate jaws.- Rails are secured by clamps b, preferably wedge shaped, which engage the rail base and are inserted away from the rail under bridges a integral with or secured to the sleeper d or chair plate, the clamps at any point engaging either the rail or the sleeper. The material for the integral bridges is supplied by projections e on the sleeper. The Specification as open to inspection under Sect. 91 (3) (a) states also that the bridge may be constituted by two spikes suitably arranged. Distance pieces may be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-490021-A (GB)
Title: Improvements in mounting and settings for stones used in jewellery
IPC: A44C17/04
Filed: 1937-02-05
Abstract: 490,021. Jewellery. ANTOINE, M. Feb. 5, 1937, No. 3543. [Class 43] In a mounting for stones or gems wherein no portion of the visible faces of any stone or gem which is not contiguous to the outer casing is masked by the setting members, the lower pyramidal portions of at least those stones which are not contiguous to the outer casing are formed each with a groove extending between two adjacent corners and with two notches each extending across another corner, such notches each being adapted to receive one of two projections, which projections are formed integrally with or permanently secured to strips or fillets interconnected so as to form stone-receiving cells and are adapted to project inwardly of each cell so formed, whilst another projection, comprising a tongue provided on another filler, for instance by cuts, is bent inwardly of the cell to engage the groove in the stone. As shown in Fig. 1, the lower portion a of the stone or gem is provided with notches d, e and with a groove f, and in the embodiment of the mount shown in Fig. 2, the casing g is divided by the intersecting strips or fillets h into nine cells i each adapted to receive a stone or gem, only the centre stone however being mounted as set out above. At their crossing points the strips or fillets h are cut out to accommodate small plates j adapted to engage the notches d, e. For the centre stone, or for each stone other than those contiguous to the casing where the pavement of stones comprises more than nine stones, a portion of each of two plates f is cut away as shown at k so that not more than two projections extend into the cell. The portion of the fillet h which extends between the cut-away portions k forms the tongue l which is adapted to be hammered or otherwise bent into the groove f. Each plate j and tongue l may be divided by cuts or notches. The brink of the casing g extends above the upper edge of the strips or fillets h to permit the brink to be folded, bent or swaged over the marginal portions of the contiguous stones.
Patent GB-370097-A (GB)
Title: Improvements in and relating to starting devices for electric motors
IPC: H02P1/20
Filed: 1931-02-04
Abstract: 370,097. Master control of motors; electromagnetic switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and BOURNE, S. N., Birding- bury, Rugby. Feb. 4, 1931, No. 3591. [Classes 38 (iii) and 38 (v).] When a motor A is started consequent upon closure of start button 11, contactors 2, 5 are latched in so that they do not open upon failure of voltage. Depression of button 11 energizes coil 2a and closes contactor 2. Line voltage is thus impressed on coils 6a, 7a, 8a, causing contacts 6, 7, 8 to move to the left. Coil 1a is thus energized over contact 6 and causes contactor 1 to close, and maintains itself over auxiliary contact 1x. As coil 6a is now shorted, contact 6 moves to the right and coil 3a of contactor 3 is energized. Acceleration proceeds by the sequential shorting of coils 7a, Sa, movement of contacts 7, 8, energization of coils 4a, 5a and closure of contactors 4, 5. Stopping can only be effected by closure of stop button 12 or overload contacts 9 causing energization of unlatching coils 2b, 5b of contactors 2, 5. An auxiliary contact 3x prevents re-energization of coil 2a until after opening of contactor 3. A construction of latched contactor is shown in Fig. 2. The operating coil L when energized attracts its armature K and the end thereof engages the latch M and is held in the attracted position until the release coil O is energized.
Patent GB-544968-A (GB)
Title: Rubber vulcanization accelerator and method of manufacture
IPC: C08K5/00
Filed: 1941-03-17
Abstract: 544,968. Rubber accelerator. UNITED STATES RUBBER CO. March 17, 1941, No. 3601. Convention date, March 27, 1940. [Class 2 (iii)] [Also in Group V] A rubber accelerator comprises a mixture of tetrabutyl thiuram monosulphide, a butyl thiourea and a butyl urea and is made by reacting phosgene with an alkali metal salt of dibutyl dithiocarbamic acid. An oil mainly of carbonyl disymmetrical dibutyl dithiocarbamate is liberated and the mix is warmed until decomposition into the required mixture occurs, carbonyl sulphide being evolved at 40C. The mixture is washed, and separated and dried centrifugally.
Patent GB-1122125-A (GB)
Title: The manufacture of cyclohexylammonium cyclohexylsulfamate
Filed: 1967-01-24
Abstract: Cyclohexylammonium - N - cyclohexylsulphamate is prepared by contacting a gas stream containing SO3 in an inert diluent with another gas stream containing cyclohexylamine vapours at a temperature between room temperature and 250 DEG  C., said gas streams being proportioned in such a way that 0.8-40 moles of cyclohexylamine vapours are contacted with one mole of SO3. The cyclohexylamine is preferably diluted with an inert gas, and the same diluent, e.g. nitrogen may be used for both reactants. The product may be isolated, e.g. by collecting it in an inert liquid such as water or cyclohexylamine or may be converted directly to sodium cyclamate by reaction with aqueous NaOH.
Patent GB-1500196-A (GB)
Title: Printing and cutting apparatus
IPC: B26D5/14
Filed: 1975-01-28
Abstract: 1500196 Linkwork MONARCH MARKING SYSTEMS Inc 28 Jan 1975 [4 March 1974] 3720/75 Heading F2K [Also in Division B4] Apparatus for printing and cutting sheets from a web W comprises a cutting mechanism 11 driven, via a connecting rod 31, by a drive means 22, 23, 27, including a drive pin 28, and a selective drive connection 36 between the drive pin and the connecting rod settable in either one position in which the drive pin drives the connecting rod to operate the cutting mechanism or, in another position, in which the drive pin is ineffective to drive the connecting rod. The drive connection 36 comprises a block 37 screwed to the connecting rod 31, a member 42 being pivotally connected to the block and provided with a portion 45 adapted to enter into an enlarged end of a slot 60 formed in the rod; the portion 45 is formed with a drive face 45<SP>1</SP> for co-operation with the drive pin 28. The drive pin is mounted on a plate 27 which is secured to a shaft 24 rotated by a motor M via a shaft 16 and gears 22, 23; the shaft 16 also drives printing cylinders 12, 13 via gears 18, 19, 21. The connecting rod is connected to a lever 65 secured to a shaft 66 which via levers 69, 70 and links 71, 72 actuates a knife 76. In operation, with the member 45 in the closed position shown in Fig. 1, and upon rotation of the plate 27, the pin engages the drive face 45<SP>1</SP> and thereby causes the connecting rod 31, together with the knife 76, to move downwardly so that the latter co-operates with a fixed blade 87 to sever the web W. When the web is not required to be cut, the member 42 is pivoted to the open position PL, Fig. 3, so that the drive pin can then move down freely in the slot 60 without moving the rod 31. The member 42 is provided with finger grips 42<SP>1</SP> and is held in the open and closed positions by a spring-loaded detent ball 55, 57.
Patent GB-558146-A (GB)
Title: Improvements relating to iron alloys or steels
IPC: C22C38/16
Filed: 1942-03-21
Abstract: 558,146. Alloys. EVERY, C. E. (Titanium Alloy Manufacturing Co.). March 21, 1942, No. 3775. [Class 82 (i)] Iron or steel alloys contain 0.06-0.12 per cent. of carbon, 0.08-0.2 per cent. of phosphorus, 0.4-0.7 per cent. of titanium, 0.1-0.3 per cent. of silicon, 0.3-1.5 per cent. of manganese, and 0.1-1.2 per cent. of copper, the titanium content being more than 3.5 times the carbon. Up to 1 .per cent. of one or more other metals such as chromium, nickel, molybdenum, vanadium, zirconium, and niobium may also be present.
Patent GB-578419-A (GB)
Title: Frequency stabilising means
IPC: H03L7/04
Filed: 1942-11-24
Abstract: 578,419. Frequency measurement. ROST, H. F., THUNELL, K. H., VIGREN, S. D., And CLAESSON, P. H. E. Nov. 24, 1942, No. 3851. Divided out of 578,406. [Class 37] [Also in Group XXXV] Oscillation frequency.-A system for the indication of frequency error, or the control o f frequency, of a velocity-modulated ultra-shor t wave generator comprises two circuits sharply tuned to different frequencies, each circui t comprising a resonance chamber separate from the generator and receiving energy from a common input outside the chambers, their r outputs being applied in opposition to indicating or control means the response of which determines the operation of regulating means adjusting the basic generator frequency. The generator may comprise a hollow resonance enclosure, the volume of which is adjustable by means of a screw moving a portion of the metal wall to adjust the tuning. The controlling means may comprise an electronic discharge tube arranged to increase or decrease the anode voltage of a klystron. Fig. 1 shows a receiving dipole 237 coupled to two pairs of resonating chambers, the output of each of which is rectified and applied to resistances 226, 227 in the grid circuits of a double triode 225 feeding opposed windings of a polarized relay 220 which with relays 217, 218 controls a reversible motor 215 operating a nut on oppositely threaded screws 210, 211, whereby the plates 195, 196 are operated to cause variation in the volume of resonance chambers 201, 202 of the generator to correct any variation in frequency. In Fig. 2 the outputs of the triodes are opposed on a resistance 243 in the grid circuit of an amplifier 240 acting as a variable impedance in the anode circuit of the generator 203, 204. To measure the frequency error, a centre zero ammeter 252 is connected as shown in association with a double diode 225 and resistances 250, 251 connected to the output of the resonators. Fig. 4 shows heat sensitive resistance elements or bolometers 253, 254 which may be used in place of the diodes 228, 229 and resistances 226, 227 of Figs. 1 and 2.
Patent GB-824485-A (GB)
Title: Method of making corrosion resistant ingots or billets and corrosion resistant clad steel therefrom
IPC: C23C16/56
Filed: 1956-02-08
Abstract: Prior to rolling, steel ingots or billets are protected against oxidation by contacting them while hot with the vapours of a metal compound which decomposes at the temperature of the ingots or billets to deposit thereon a metal coating.  Metal compounds which may be used are nickel, chromium, molybdenum, tungsten and cobalt carbonyls; cobalt nitrosyl carbonyl; osmium and ruthenium carbonyl chlorides; antimony hydride; chromyl chloride; metal nitroxyls; and metal alkyls.  The metal compound may be entrained in a carrier gas such as cargon dioxide, helium, nitrogen, hydrogen or the product of controlled burning of oxygen-free hydrocarbon gases.  Clad steel sheet may thus be produced by cooling a forged steel billet to 400 DEG F., coating it with metal, heating at to 1300 DEG -2500 DEG F., and passing it through the rollers of a roughing train and finishing train.  Specifications 751,523 and 758,924 are referred to.
Patent GB-178965-A (GB)
Title: Improvements in or relating to the escapement mechanism of typographical composing machines
IPC: B41B11/18
Filed: 1921-02-02
Abstract: 178,965. Linotype & Machinery, Ltd., Drake, T., and Gayter, E. Feb. 2, 1921. Escapements for typebar - making machines. Relates to escapementmechanism in which the levers are integral with their pallets and are mounted to move arcuallv about an axis outside their own marginal edges. Each escapement-lever 1 has, a curved slot 2 traversed by two supporting-rods 3 which are ccmmon to all the levers of the same bank, the arrangement being such that the pallets 4, 5 move as nearly as possible at right-angles to the plane of the magazine 6. The slots 2 may be circular or otherwise, and other supporting- means, for example, a single rod of arcuate crosssection, may be used.