baber/WOPTO huggingface dataset:
Patent GB-799615-A (GB)
Title: Improvements in or relating to a vertical pulverizing machine
IPC: B02C13/16
Filed: 1956-04-11
Abstract: 799,615. Impact pulverizers. METALS DISINTEGRATING CO., Inc. April 11, 1956 [April 12, 1955], No. 11008/56. Class 59 A pulverizing machine comprises a chamber 20 having a co-axial air inlet 25, a co-axial outlet 47 and a material feed inlet 53, and rotary pulverizer 16 adjacent the inlet 25 and including pivotallyattached hammers surrounded by serrated walls 22, and a rotary separator 48 adjacent the outlet 47, the pulverizer being mounted on a shaft 26 driven from a motor 12 and the separator being mounted on a shaft 50 driven at variable speed from a motor 57. The outlet 47 leads to an outlet pipe 52 to which a source of suction is applied. A slot 64 for admitting air is provided around the upper edge of the chamber 20 so as to prevent the accumulation of pulverized material. The pulverizer comprises spaced rows of hammers 30, 31, 32 pivotally attached to discs 27, 27a and having hardened tips 43, the hammers 30, 31 having downwardly-bevelled surfaces 44 and the hammers 31 being staggered circumferentially relatively to the hammers 30, 32. Fan blades may be attached to the underside of the disc 27a. The shaft 50 of the separator 48 is driven from the motor 57 through a belt and pulley drive 51, 55, 56. The position of the motor 57, which is attached to a plate 62 hinged to a fixed bracket 58, is adjustable to adjust the tension of the belt 55, by means of a handwheel 59 turning a screwthreaded shaft 60. The pulley 56 has a variable pitch sidewall arrangement which has a spring bias for causing the flanges of the pulley to move axially close together. The diameter of the pulley 56 upon which the belt 55 will ride is determined by the tension on the belt as adjusted by the handwheel 59 and screw-threaded shaft 60.
Patent GB-996307-A (GB)
Title: Barium borosilicate glass
IPC: C03C3/095
Filed: 1962-03-23
Abstract: A barium borosilicate crown glass resistant to crystallization includes 3-7% by weight La2O3, the balance, if any, consisting of other compatible constituents but not containing any fluoride or cadmium oxide.  The composition in percentages by weight comprises SiO2 20-40; B2O3 5-30; divalent metal oxides BaO, CaO, ZnO, PbO, MgO 35-50 of which BaO represents at least 30.  The glass may also include up to 10% of one or more Al2O3, TiO2 and ZrO2. Suitable glasses contain equal quantities of ZrO2 and MgO up to 6% and the BaO content is 15%, the CaO, PbO and ZnO being up to 10%. Two examples are given.  Specification 889,237 is referred to.
Patent GB-1298855-A (GB)
Title: Condensing webs to form slivers
IPC: D01G15/46
Filed: 1970-03-10
Abstract: 1298855 Rollers SCHUBERT & SALZER MASCHINENFABRIK AG 10 March 1970 [12 March 1969] 11345/70 Heading F2U [Also in Divisions B8 and D1] Each of a plurality of rollers has a surface comprising two convex end portions joined by a central cylindrical portion. The rollers may have parallel axes and be close together.
Patent GB-514890-A (GB)
Title: Improvements in and relating to electric transformer
IPC: G01R19/20
Filed: 1938-04-13
Abstract: 514,890. Current transformers. BRITISH THOMSON-HOUSTON CO., Ltd. April 13, 1938, No. 11404. Convention date, April 16, 1937. [Class 38 (ii)] [Also in Group XXXVI] In a D.C. measuring transformer comprising a pair of saturable cores. 1, 2 linked by a conductor 8 carrying the current to be measured and by a pair of series-connected windings 3 energized from an A.C. source U and connected in series with the measuring instrument Z, the cores are made of a material, such as a nickeliron alloy, the characteristic curve of which has a sharp saturation bend so that for all values of D.C. which cause saturation of the cores the current in the A.C. circuit. is 'caused to be substantially proportional to the D.C. To enable a D.C. measuring instrument to be employed, a full-wave rectifier may be included in the A.C. circuit, the measuring instrument being connected across its D.C. terminals, Fig. 1b (not shown). The A.C. windings may be subdivided into parallel-connected parts uniformly distributed round the cores, or equivalent arrangements of compensating windings may be employed. Specifications 399,611 and 460,708 are referred to. Reference has been directed by the Comptroller to Specification 460,708.
Patent GB-1303709-A (GB)
IPC: B22C1/24
Filed: 1970-03-10
Abstract: 1303709 Foundry mould compositions ASHLAND OIL Inc 10 March 1970 [10 March 1969] 11515/70 Headings C3N and C3R A curable foundry mix comprises a foundry aggregate and a curable binder comprising at least one phenolic resin which is substantially free of water and at least one polyisocyanate together with a fatty acid in an amount up to 5% based on the weight of the foundry aggregate. The fatty acid may be a saturated or unsaturated monocarboxylic acid (C 4 -C 26 ) or a polymerized fatty acid, e.g. dimers and trimers of unsaturated fatty acids. Numerous examples of such acids are given in the specific examples. A comparative Example (II) refers to the use of CF 3 COOH. The phenolic resin may be a resole or novolac resin whilst the polyisocyanate may be any of the conventional aliphatic, cycloaliphatic or aromatic polyisocyanates. The phenolic resin is preferably the condensation product of a phenol having the general formula wherein A, B and C are hydrogen, hydrocarbon, oxyhydrocarbon or halogen with an aldehyde R<SP>1</SP>CHO, wherein R<SP>1</SP> is hydrogen or hydrocarbon (C 1 -C 8 ). The foundry aggregate is preferably sand and the fatty acid may be mixed simultaneously or separately with the sand or alternatively the fatty acid may be mixed with the phenolic resin or with the isocyanate prior to mixing with sand. The resulting mix is introduced into a mould and cured by the use of a tertiary amine gas, e.g. triethylamine. The foundry mix of the invention has merit in that it does not stick to the metal pattern. Optional ingredients of the mix include iron oxide, ground flax fibres, wood cereals, pitch and refractory flours. The invention is also directed to a binder composition per se, suitable for use in the foundry mix, comprising a non-aqueous phenolic resin having the general formula in which R represents a hydrogen atom or a substituent meta to the hydroxyl group of the phenol, m and n are numbers, the sum of which is at least 2, and the ratio of m to n is at least 1, and X represents a hydrogen or a methylol group, the molar ratio of the said methylol to hydrogen end-groups being at least 1; the hardener comprising a liquid polyisocyanate and the curing agent comprising a tertiary amine. The polyisocyanate may be present in an amount 10-500 weight percentage based on the weight of the phenolic resin and may be any of the conventional aliphatic, cycloaliphatic or aromatic polyisocyanates, preferably having 2-5 isocyanate groups, e.g. diphenyl methane diisocyanate. A particularly suitable tertiary amine is trimethylamine and this may be present in an amount 0À01-5% by volume of an air or nitrogen gas stream.
Patent GB-685749-A (GB)
Title: Improvements in or relating to isoquinoline derivatives
IPC: C07D217/20
Filed: 1949-10-14
Abstract: The invention comprises 1-benzyl-1 : 2 : 3 : 4 : 5 : 6 : 7 : 8 - octahydroisoquinolines of the general formula <FORM:0685749/IV (b)/1> (wherein R11 and R111 are the same or different and each represent hydrogen or a methoxy group), and the manufacture thereof by the reduction of the corresponding 3 : 4 : 5 : 6 : 7 : 8-hexahydro compounds (obtainable by the process of Specification 685,748).  In examples: (1) 1 - (p - methoxybenzyl) - 3 : 4 : 5 : 6 : 7 : 8 - hexahydroisoquinoline is prepared as described in example (2) of Specification 685,748 and is hydrogenated in methyl alcohol in the presence of Raney nickel; (2) 1-(31 : 41-dimethoxybenzyl) - 3 : 4 : 5 : 6 : 7 : 8 - hexahydroisoquinoline is prepared as described in example (3) of Specification 685,748 and is hydrogenated as in example (1). Specification 685,747 also is referred to. p
Patent GB-216661-A (GB)
Title: Improvements in and relating to sectional maps for motorists and the like
IPC: G09B29/00
Filed: 1923-05-01
Abstract: 216,661. Moser, W. E. May 1, 1923. Maps. - A map section comprises a sheet a bearing the map proper and a smaller sheet d located adjacent thereto and bearing matter such as compass marks and indications relating to neighbouring sections, the sheets being preferably mounted on a strip of stiff paper f, a backing c of metal, preferably aluminium, and a transparent celluloid cover b, perforations i or a hinged strip being provided for enabling a number of sections to be assembled in a cover. The backing c is preferably larger than the cover b so that the edges may be bent over and secured to the front of the cover by adhesive.
Patent GB-117751-A (GB)
IPC: B65G53/46
Abstract: 117,751. Layton, G. S. Oct. 25, 1917. Loading - hoppers. -A bucket-wheel discharger for granular material, grain, coal, &c., is reversed automatically when it becomes blocked. When the wheel b is blocked, as by the obstruction f, the driving mechanism is stopped and re-started in the opposite direction automatically, as for instance by electrical devices controlling and reversing an electric motor.
Patent GB-883158-A (GB)
Title: Arresting net for aeoroplanes
Inventor: RONNERSTROM SVEN ERIK
IPC: B64F1/02
Filed: 1960-04-04
Abstract: 883,158. Aircraft arresting gear. BORGS FABRIKS A.B. April 4, 1960, No. 11799/60. Class 4. An arresting net for aeroplanes is carried in its raised position by masts 4, 5 disposed at the two ends of the net, and is arranged to be elevated and lowered in a plane parallel to the net in its raised position, the masts 4, 5 occupying, at all times, vertical positions. Vertical cables 1 are attached at their lower and upper ends to wires 3 and 2, the latter being connected to winch ropes 8, 9 which pass over pulleys 6, 7 to winch motors 14, 15, by joints 10, 11, which are such that, when an aeroplane has been caught in the net, the latter will be disconnected from cables 8, 9, and will be smoothly decelerated by brakes, not shown, connected to the net by wires 12, 13. Elevation and lowering of the net may alternatively be effected by endwise displacement of the masts out of and into spaces in the ground or by masts consisting of telescoping tubes.
Patent GB-471077-A (GB)
Title: Book rest
IPC: A47B23/02
Filed: 1936-12-23
Abstract: 471,077. Bolting. ROBERTS, H. D. Dec. 23, 1936, No. 11921. [Class 89 (i)] [Also in Group XIV] A leaf-holder for book-rests comprises a screw-threaded rod s passing freely through a hole in the book-rest, and for adjusting the leaf-holder in accordance with the thickness of the book each rod s has a slidable nut u with a quick release device comprising a spring v on the book-rest arm k or k<1> engaging the thread through a slot in the nut.
Patent GB-1419748-A (GB)
Title: Current stabilizing arrangement
IPC: G05F3/26
Filed: 1974-03-18
Abstract: 1419748 Automatic current regulation PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 March 1974 [20 March 1973 5 Dec 1973] 11971/74 Heading G3X [Also in Divisions H3-5] The invention comprises a circuit for maintaining a constant ratio between the currents flowing in two parallel paths between first and second terminals, each path consisting of an impedance in series with the main current path of a transistor and the two transistors being of the same conductivity type. The impedances are connected between the first terminal and the corresponding transistors while a further impedance is connected in at least the path between one transistor and the second terminal. A differential amplifier has each of its two inputs connected to a separate one of the junction points between one of the impedances and the corresponding transistor, while the control terminals of the transistors are connected together and derive a signal from an output from the differential amplifier. In a first embodiment, the impedances are formed by transistor T5 and transistors T6, T4 respectively, Fig. 2 , connected as a current mirror, and the transistors Tl, T2 have their joined bases driven from the output of differential amplifier A. Transistor T2' represents the additional area necessary in transistor T2 over and above that of transistor Tl, if transistors T5, T6 have equal areas, the currents being set by means of variable resistor R. A current output is derived from terminal S1 by means of an additional transistor T7. A second embodiment has as impedances equal resistors R1, R2, Fig. 3 and the differential amplifier comprises transistors T8, T9, having as collector loads the current mirror formed by transistors T11, T12. The bases of transistors T1, T2 are driven from the collector of transistor T8 via an emitter-follower T 10, the collector of which provides a record current output point S2. A diode D1, which may be a strapped transistor is provided between the bases of transistors T1, T2 and earth, while starting is facilitated by means of resistor RS. In a further modification the impedances comprise resistors and the bases of the transistors are driven via an emitter-follower from a common-mode point in the differential amplifier, Fig. 5. This last circuit is also described in the Specification as used to provide bias currents for a differential amplifier Fig. 6 (not shown) see Division H3-5, modified starting arrangements being shown.
Patent GB-540197-A (GB)
Title: Improvements in and connected with thermal release devices for electric switches
IPC: H01H71/16
Filed: 1940-07-23
Abstract: 540,197. Electrically released switches. CRABTREE & CO., Ltd., J. A., and Mc- LOUGHLIN, H. F. July 23, 1940, No. 12043. [Class 38 (v)] [Also in Group XIII] A thermal release for switches includes a heater coil surrounded by a bi-metal strip and shielded at its ends by heat insulating means to prevent heat dissipation to the casing axially. In the example, three such elements c, together with a bi-metallic element c<SP>1</SP> for correction for ambient temperature, are enclosed in compartments b in an insulating casing a. The elements c each comprise a heater coil e mounted on a base plate f<SP>1</SP> secured to the back wall of the casing. Supported from a pin j, held in a socket j screwed to the base, a V-arm i carries one end of the cylindrical bi-metal strip g, the other arm i<SP>2</SP> of the V being anchored. Mica discs k retain the heat from the enclosed heatercoil e. The free end h of the bi-metal strip engages a notch in a sliding trip-bar d which trips the switch in known manner. The bimetal strip may be polished or plated to reduce heat loss.
Patent GB-681156-A (GB)
Title: Improvements in clad magnesium-base alloys
IPC: B32B15/01
Filed: 1949-05-05
Abstract: An article comprises a base alloy containing 15 per cent Cd, 5 per cent Ag and the remaining 80 per cent Mg and Li, the ratio of Mg to Li being 6 : 1, to which is bonded a corrosion resistant cladding of a binary alloy of 8 parts Mg to 1 part Li.  The Specification as open to inspection under Sect. 91 comprises also examples of Mg-Li base alloys within the ranges 66.9-88.3 per cent Mg and 5.6-12.8 per cent Li with 4-16 per cent Cd, 2-6 per cent Ag. 0.5-8 per cent Al, 2-5 per cent Zn, 2 per cent Sn and 1 per cent Cu as optional constituents. This subject-matter does not appear in the Specification as accepted.
Patent GB-645539-A (GB)
Title: Improved folding chairs
IPC: A47C4/14
Filed: 1949-05-06
Abstract: 645,539. Seats. JORGENSEN, T. B. May 6, 1949, No. 12131. Convention date, June 2, 1948. [Class 52 (ii)] In a chair of the kind comprising a main frame forming a back-rest and the front legs, a seat and a real leg frame being pivoted to the main frame and independently pivotable into the main frame, the seat is supported at its front end by arms pivoted to the main frame. The main frame 1, 2, 3 has pivoted thereto a rear leg frame 5, 6 and, by means of pins 12 on the main frame engaging grooves 11, a seat 7 ... 10. Additionally the front end of the seat is supported by arms 15 pivoted to the main frame and engaging, by means of pins 14, grooves 13 in the side members 7 of the seat. In a modification the rear leg frame is pivoted on the pins 12 and is extended upwardly for pin and slot engagement with arm rests pivoted to the main frame.
Patent GB-591641-A (GB)
Title: Improvements in or relating to quick-release fastenings for safety harness, parachute harness and the like
IPC: B64D17/32
Filed: 1945-05-15
Abstract: 591,641. Strap fastenings. MILLS EQUIPMENT CO., Ltd., LETHERN, A. A., and QUIRICO, J. S. May 15, 1945, No. 12181. Addition to 524,504. [Class 44] In the quick-release fastening for parachute or safety harness described in the parent Specification, a locking device is provided having a control member operable from outside the casing and adapted in its locked position to hold the pivoted operating lever positively in its locking position. The control member may comprise a knob mounted coaxially with the pivoted operating lever and movable outwardly to lock and inwardly to unlock. The fastening comprises a body part A with cylindrical recesses A<1>, A<2>, and end plates B, C. Slots are formed in the body to receive the ends of the straps D which are retained by spring- pressed plungers G. The plungers are lifted to release the straps by the movement of a releasing plate H engaging flanges G<1> on the plungers. The plate M has a cylindrical extension L within which is journalled a shaft J, and a flange J<1> on the shaft has a cam surface which co-operates with a corresponding surface on the extension L, when the shaft is rotated by means of the lever K, to raise the plate Hand consequently the plungers G. The locking device consists of a key M, secured to a rod M<2> passing through a bore in the shaft J, which in the locking position lies partly in a diametral slot J<3> in the shaft, and partly in a slot B<1> in a boss integral with or secured to the back plate B. The key M has chamfered ends which coact with a spring clip B' to retain it either in this position or in a position wholly within the slot B<1> to release the shaft J, movement of the key being effected by manipulating the knob M<3>. Cam means, such as balls K<1> and a V- groove M<4> may be provided so that a slight rocking movement of the lever K effects sufficient outward movement of the knob M<3> to lock the shaft J.
Patent GB-743015-A (GB)
Title: Improvements in or relating to lubricating systems for engines
Inventor: MAYALL ARTHUR WILLIAM
IPC: F01D25/20
Filed: 1953-05-01
Abstract: 743,015. Lubricating. ROLLS-ROYCE, Ltd. April 12, 1954 [May 1, 1953], No. 12190/53. Class 12 (3). In a lubricating system of the kind wherein the oil is delivered from a storage tank by pressurizing the tank a restriction is provided between the tank and the point of use of the oil, the restriction being afforded by two elements made from materials having different coefficients of thermal expansion and connected together so that due to relative expansion on increase of temperature of the oil the effective area of the flow passage between them is decreased. In the construction shown in Fig. 2, a temperaturesensitive metering device 13 comprises a hollow body 14 closed at one end by a threaded union piece 15 having a short projection 17 fitting into the bore 14a of the body. A plug piece 19 made of aluminium and provided with a shank and a flange 20 is secured to the body with a washer 24 interposed between the flange and the end of the body, so that the shank of the plug occupies most of the bore 14a. The plug is hollow for passage of lubricating oil. As the temperature of the oil increases the plug expands so that its end surface more closely approaches the end surface of the projection 17 on the union piece and the flow of oil is thereby more restricted. In the construction shown in Fig. 3, the plug 19 is provided with an end plate 30 with a projecting part 31 located near the outlet passage 18 of the union piece 15. The plug 19 is hollow and contains a distance-piece 39 and a plunger 40 pressed inwardly towards the end plate 30 by means of a spring 47 and a piston 44 fitted within an end cap 43 secured to the plug flange 20. The plug 19 has an axial passage 33 which communicates with an inlet passage 26 for oil. The passage 33 at one end registers with an opening 34 on the end plate 30 leading to a restricted passage between the end plate and the outlet passage 30. At the other end the passage 30 leads to a rebate 42 in the piston 44 leading to axial passages 46 and an annular groove 45 in the plunger 40. The groove 45 communicates through passages 35, 28 with an oil outlet 27. When the temperature of the oil increases the projecting portion 31 of the end plate 30 approaches more closely the outlet 18 and thus restricts more fully the flow of oil therethrough. At the other end of the device the increase of temperature causes the plug-piece 19 to expand towards the crown of the piston 44 until eventually the clearance no longer exists and flow of oil through the outlet 27 is stopped. In a further embodiment there are provided two restriction flow passages in parallel one having a variable restriction and the other being of constant effective area.
Patent GB-1087228-A (GB)
Title: Electrical connectors for coaxial cables
Inventor: SCHWARTZ OSCAR
IPC: H01R13/646
Filed: 1966-03-21
Abstract: 1,087,228. Coaxial connectors. AUTOMATIC METAL PRODUCTS CORPORATION. March 21, 1966, No. 12278/66. Heading H2E. The tubular conducting body 16 (Fig. 2) of a coaxial connector is conically tapered at one end 18 and forced between the inner insulation 29 and outer conductor 30 of a coaxial cable 23, and a plastics insulating sleeve 22 with a frustoconical surface 26 is forced over the tapered end 18 of the body 16 to grip the outer cable insulation 31 and to force the outer conductor 30 into annular grooves 20 in the body 16. The sleeve 22 has resilient end walls 25 terminating in an annular pawl 24 for engagement with annular ratchet teeth 21 on the body 16. The bared inner insulation 29 of the cable abuts a counterbore 19 in a tubular insulator 17, and the inner conductor 27 is soldered or otherwise secured to a terminal pin 28.
Patent GB-1440052-A (GB)
Title: Optical measuring head for a photometer
IPC: G01N21/03
Filed: 1974-03-20
Abstract: 1440052 Photometric head BAYER AG 20 March 1974 [24 March 1973] 12338/74 Heading G1A A photometric head comprises, a light source 1, a test cell 2, walls 5 of which consist of material permeable to the substance to be tested, a filter 3 for separating out a particular wavelength or wavelength range, and a detector 4. A pipe 6 is connected to a pump 7 or via a throttle to a zone of lower pressure than the area surrounding the cell so that test material is sucked through the walls 5 into the cell 2, the material being cleaned by filtering as it enters. Periodically, a cleaning gas may be passed through the cell walls to remove particles and if it has zero absorption, may be used as a zeroing gas for the photometer. The suction line may include a pressure flow regulator. The apparatus has application in monitoring workroom or external atmospheres e.g. for explosion warning or emission control purposes, or in analysis of liquids.