baber/WOPTO huggingface dataset:
Patent GB-1521735-A (GB)
Title: Governors
IPC: F02D1/10
Filed: 1975-08-15
Abstract: 1521735 Centrifugal governor DIESEL KIKI CO Ltd 15 Aug 1975 [15 Aug 1974] 34139/75 Heading G3B A governor for injection pumps of internal combustion engines has a regulating member 4 movable against a spring 14 by engine speed increase to move a fuel adjusting member 8 through a guide lever 5 and an intermediate lever 6 comprising parts 6a, 6b pivotally joined together and to the guide lever by a pin 21; relative pivotal movement between the parts being prevented in one direction (e.g. by cheek 6c), there being a drag spring 6d urging movement in that direction and a stopping means e.g. pins 27, 40a and lever 40 to arrest the part 6a under the action of a compression spring 17 and to reverse its movement with increasing engine speed. The governor may have regulating and additional regulating springs 14, (12a), Fig. 4 (not shown), a starting spring 9 and a load control adjustment device comprising levers 32, 18 the regulating spring urging the draw lever 10 towards a stop 11 from which it is moved by centrifugal action through the member 4. As a governor for idling and maximum speed control, the fuel supply is reduced after starting, kept constant at low speed and reduced to "regulate down" from the maximum speed setting. Alternatively with different relative pre-loading of springs 9, 17 and (12a), 14 the governor may function with "negative adaptation" for pressure charged engines, when fuel is initially reduced after starting, then increased with increasing speed and "regulated down" from the maximum set speed.
Patent GB-1313970-A (GB)
Title: Apparatus for laboratory testing of sustained release drugs
IPC: B01L7/00
Filed: 1971-07-21
Abstract: 1313970 Laboratory oven; testing drugs EURAND SpA 21 July 1971 [22 July 1970] 34161/71 Heading B1X Apparatus for the laboratory testing of sustained release drugs comprises a heatable chamber, means for accurately controlling the temperature in the chamber to fall within a restricted range defined by a maximum and a minimum temperature setting and including a mercury bulb thermometer located within the chamber, a relay operating a switch connected to a heat source for the chamber and a rotatable wheel-shaped device located within the chamber and supporting a number of elution bottle housings. In the embodiment shown, eight housings 10 are arranged in pairs radially around the wheel-shaped device 4 which is driven through reduction gearing by an electric motor. Electric resistance heaters 21 are disposed below the device 4, the whole, together with control means, being contained in glassfronted cabinet 1.
Patent GB-727559-A (GB)
Title: Improvements in tubulous vapour generators
IPC: F22B37/22
Filed: 1953-12-09
Abstract: 727,559. Water-tube steam boilers. BABCOCK & WILCOX, Ltd. Dec. 9, 1953 [Dec. 9, 1952], No. 34239/53. Class 123 (2). A water-tube steam boiler comprises a furnace 66 lined with steam-generating tubes and fired by burners 106, 108, the combustion gases leaving the furnace through a lateral pass locating convection superheaters 56, 54 and flowing through two groups 14, 16 of steam-generating tubes constituting the convection section of the boiler. The gases then flow forwardly under the floor 76 of the lateral pass and rearwardly to an outlet 118 as indicated by arrows 116 and 120. The furnace lining tubes extend between lower headers 65, 98 and a steam-and-water drum 10, the tubes of groups 14 and 16 connecting this drum with a water drum 12. Water is supplied from drum 10 to drum 12 by downcomers 63, 64 and thence to headers 65, 98 by downcomers 68, 70 and 102. The furnace lining tubes and those of groups 14 discharge a low density steam-water mixture into a chamber 24 whilst the less highly heated tubes of group 16 discharge a higher density mixture into a separate chamber 34. From chamber 24 the low density mixture passes into centrifugal separators 28 of the form described in Specification 526,825, the steam passing into the steam space of drum 10 through, multiple plate scrubbers 32 whilst the separated water discharges downwardly into the water space. The high density mixture passes upwardly in chamber 34 and is' deflected into the steam space, where separation occurs, by a baffle 44. Steam leaves the drum 10 through secondary scrubbers 46 of the form described in Specification 449,652 and passes through pipes 48 and 50 to superheaters 54 and 56 between which is located an attemperator (not shown). Water discharges through the large diameter downcomers 63, 64, the arrangement being such that steam generated in the tubes of group 16 cannot enter the downcomers, whilst any tendency for some of these tubes to recirculate steam-water mixture if the heat input to the tubes falls is overcome.
Patent GB-337214-A (GB)
Title: Improvements in high vacuum vapor pumps
IPC: F04F9/00
Filed: 1929-11-11
Abstract: 337,214. Gaede, W. Nov. 13, 1928, [Convention date]. High-vacuum apparatus.-The diffusion passage a of a mercury vapour pump is bounded at its outer side by a wall cooled by a jacket b through which liquid preferably at-10‹ to -20‹ C. is passed, and at the inside by a coil e. A hood h of steel prevents condensed mercury from falling on the vapour nozzle i. The pump is connected at the parts m, n to the vessel to be evacuated and the rough pump.
Patent GB-1517576-A (GB)
Title: Machine for producing grooves in hard materials
IPC: B25D17/32
Filed: 1975-08-19
Abstract: 1517576 Percussive tool IMPEX-ESSEN VERTRIEB VON WERKZEUGEN GmbH 19 Aug 1975 [7 Sept 1974] 34358/75 Heading B4C A machine for producing grooves in concrete comprises means for producing hammering and reciprocatory motion of the bit. As shown in Fig. 1 a hammer piston 16 is driven via an air cushion 17 from a piston 19 driven from an electric motor; the same motor produces, through bevel gearing 13, 14 and an eccentric drive 12 oscillation of the drill bit. The drill bit is formed as in Fig. 2 and is scoop shaped to assist clearing of debris. It has a captive nut 25 and teeth 24 which engage similar teeth on the drill spindle. In a modification reciprocating motion is produced by a varied piston each vane being located in an annular sector and being positively driven by pressure air in alternate directions.
Patent GB-814164-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02M69/50
Filed: 1957-11-05
Abstract: 814,164. Rotary distributing valves GENERAL MOTORS CORPORATION. Nov. 5, 1957 [Nov. 19, 1956], No. 34403/57. Class 7(6) A rotary distributer valve 18, supplied at 50 with fuel at a pressure varying with engine speed, supplies fuel in succession to the fuel delivery passages 44 at low engine speeds and is raised off its seat by the fuel pressure at a predetermined engine speed so that all the passages 44 are supplied continuously. The distributer comprises a conical valve 18 loaded by a spring 26 seated on a ball bearing 60 and having a distributer passage 40 which emerges through a radial projection 41 so as to supply the delivery passages 44 in succession. The valve 18 is axially slidable relative to its drive shaft 20 and when the fuel pressure set up in space 34 by an engine driven supply pump exceeds a predetermined value the valve 18 is moved axially against the force of spring 26 so that the fuel flows directly from space 34 to the pipes 44 through the gap between the valve and its seat 24.
Patent GB-1328716-A (GB)
Title: Klystrons
IPC: H01J23/48
Filed: 1971-07-22
Abstract: 1328716 Velocity modulated microwave tubes SIEMENS AG 22 July 1971 [24 July 1970] 34406/71 Heading H1D [Also in Division H2] A klystron tube has a plurality of cavities 1 to 5 and is enclosed in a magnet system, such as coils 11, and each of said cavities has a coupling aperture 21 to 25 provided with a vacuum-tight window and a screw-connector whereby coupling lines extending perpendicular to the axis of the tube and passing through openings 12 in the magnet system can be disconnected to permit the tube to be slid in and out of the magnet system. Each cavity may have a delay line to provide extended interaction. The coupling lines can be waveguides or coaxial lines and connectors for the latter are described (see Division H2).
Patent GB-1032373-A (GB)
Title: Process for the production of 16-dehydro-steroids from sapogenins and intermediates produced thereby
IPC: C07J13/00
Filed: 1963-08-30
Abstract: The invention comprises (1) steroids of the formulae <FORM:1032373/C2/1> <FORM:1032373/C2/2> (wherein Z is the A, B and C rings of a steroidal sapogenin having a 3-hydroxy or -C1- 12 alkanoyloxy group and at the S-position an a - or b -hydrogen atom or a D 5 double bond; Y is a halogen atom; and R3 is hydrogen, alkyl, aryl or aralkyl); and (2) a process for the preparation of a 16-dehydro-20-keto-pregnane compound wherein a sapogenin is reacted with an amidinium salt containing the grouping <FORM:1032373/C2/3> and obtained by reacting an amide RR1NCOR3 (wherein R and R1 are alkyl, aryl or aralkyl and R3 is hydrogen, alkyl, aryl or aralkyl) with a resistive halide, e.g. phosgene, thionyl chloride, phosphorus oxychloride, chlorosulphonic acid and p-toluenesulphonyl chloride, to form a mixture of compounds of the above general formulae wherein Y is the anion of the amidinium salt and Z is the residue of any sapogenin (in which free hydroxy groups are preferably protected, e.g. acylated), and this mixture is reacted with a base and the product oxidized. Alternatively, compounds II and III may be separated, e.g. by fractional crystallization or chromatography, compounds II oxidized to compounds IV below and these basified to give th required pregnane compounds, or compounds III basified to give compounds V below and these oxidized to give the required pregnane compounds <FORM:1032373/C2/4> <FORM:1032373/C2/5> If the starting material is a sapogenin 3-alkanoate, after reaction with a base the reaction mixture is neutralized and the product re-esterified before oxidation.  The products of base treatment and oxidation are suitably treated with basic alumina before isolation of the required pregnane.  Examples are given.
Patent GB-1017205-A (GB)
Title: Improvements in or relating to apparatus for producing prints electrostatically
IPC: G03G9/12
Filed: 1962-06-07
Abstract: 1,017,205. Electrophotographic apparatus. HARRIS-INTERTYPE CORPORATION. June 7, 1962 [June 8, 1961], No. 34461/65. Divided out of 1, 017, 204. Heading G2H. Apparatus for producing a print electrostatically comprises means for producing an electrostatic latent image on am image-receiving surface, developer means for developing the latent image with a liquid developer comprising a non-conducting liquid suspension medium having dispersed in it marking elements capable of depositing on the surface in accordance with the latent image, the developer means including a rotatable squeegee roller for contacting the developed image-bearing surface to remove suspension medium adhering to it after separation of the surface from the developer and means for maintaining the roller in intimate contact with the surface and moving said surface at a linear velocity equal to the peripheral velocity of the roller. For producing multicolour prints, the image-receiving surface is advanced successively through a plurality of stations as defined above, and preferably the first of such stations also includes means for forming a registration mark on the surface and the succeeding stations have means for detecting such mark so that all the images may be produced in predetermined relationship e.g. in register. The image receiving surface may be carried by a continuous web. The apparatus is described in Specification 1,017,204.
Patent GB-1025078-A (GB)
Title: Temperature vacuum control valve
IPC: G05D23/185
Filed: 1963-09-02
Abstract: 1,025,078. Valves. MECHANICAL PRODUCTS Inc. Sept. 2, 1963 [Oct. 10, 1962], No. 34545/63. Heading F2V. A temperature responsive vacuum control valve, Figs. 1 and 2 (not shown), comprises a body 50 having a connection 186 to a vacuum source, a connection 182 to a vacuum motor and a connection 171 to atmosphere, a valve, e.g. a spring-biased ball valve 154, movable in one direction to open a communication between the connections 182 and 186 and to seal the connection 171 and movable in another direction to open a communication between the connections 182 and 171 and to seal the connection 186, selectively, and a temperature responsive probe 20 for effecting movement of the valve. The probe 20 has a casing having a positive coefficient of expansion connected to a thermally non-responsive rod 30 having an extension 36 movable axially in the casing 50 and abutting a snap-acting blade 100. A free end 110 of the blade 100 moves a plunger 152, through an actuating lever 114, which is engageable with the ball valve 154 to move the valve against the spring 168, off the seat 164 and on to the seat 160 and vice versa.
Patent GB-1286349-A (GB)
Title: Improvements in crates
IPC: B65D6/36
Filed: 1970-07-17
Abstract: 1286349 Crates REHRIG PACIFIC CO 17 July 1970 [17 July 1969] 34650/70 Heading B8P A crate 1 moulded from a synthetic resin has its open top reinforced by a steel ring 15. The crate also has stiffening ribs 6 and handholes 7. In the form shown, the ring is seated on a ledge 12 inside the crate top and is retained by projections 18 engaging openings 13 in the crate walls. In an alternative embodiment (Fig. 4 not shown) the ring is on the outside of the crate top and rests on a ledge (23) extending outwardly from the walls. Projections on the ring again engage openings in the walls and in this embodiment, further projections (28) engage openings (27) in the horizontal ledge (23).
Patent GB-867808-A (GB)
Title: Improvements in or relating to silencers for jet propulsion units
IPC: B64F1/26
Filed: 1957-11-07
Abstract: 867,808. Exhaust-silencers. WERNER GENEST GESELLSCHAFT FUR ISOLIERUNGEN. Nov. 7, 1957 [Nov. 8,1956], No. 34747/57. Class 7(2). A conical duct 2, Fig. 2, for ground muffling of a jet engine 1 has a perforated wall 3 backed by transverse partitions 6 partially delimiting chambers so packed with sound-insulating material as respectively to damp out sounds of different frequencies by giving acoustical wall impedances (ratios of the sound pressure on the material surface to the velocity normal to the wall of the air or gas particles in the sound field) in substantial accordance with the quantity 2apf (0.90-i0.38) where a is the corresponding duct radius, p is the density of the gas at the duct entry, f is the respective sound frequency and i is #-1. The material preferably has an optimum specific flow resistance substantially equal to the quantity 0.4pc (2a)/L<SP>2</SP> where p is the density of the gas adjacent the wall, c is the corresponding jet velocity, L is the chamber depth and a is the duct radius as before. The duct 2 may be coaxial with a cylindrical sheet metal casing 4, or eccentric therewith as shown in Fig. 8, the sheet metal wall 3 being supported in each case by longitudinal members 5 further delimiting the chambers, which may be filled with soundinsulating material, or have various walls lined or sprayed over with sheets, e.g. 9 or 10, thereof. Wire screens 11 of up to 8 cm. inter-wire spacing, are provided; they may have their meshes relatively offset or differently orientated and need not be at right angles to the duct axis.
Patent GB-348061-A (GB)
Abstract: 348,061. Comparing handwriting. STEINITZER, F., 7, K÷rnerstrasse, Lichterfelde, Berlin. Jan. 29, 1930, No. 3075. [Class 146 (ii).] Apparatus for the examination of objects in uniformly diffuse light comprising a mat surface D illuminated by a lamp L and a white-surfaced reflector R, with a frosted screen M to reduce the ratio of the intensity of the direct illumination to that of the reflected light, is used for comparing handwriting.
Patent GB-1165275-A (GB)
Title: Track Pin Seal
Inventor: REINSMA HAROLD LAWRENCE
IPC: F16J15/34
Filed: 1967-07-28
Abstract: 1,165,275. Track link joints. CATERPILLAR TRACTOR CO. 28 July, 1967, No. 34849/67. Heading B7H. [Also in Divisions E2 and F2] A seal for a track link 12<SP>1</SP> is housed in a groove spaced from the bore of the link and comprises a first portion frictionally retained in the groove and a second portion which presents a conical surface, a part of which engages the end of a bushing 13. The groove for the seal is positioned so that it does not interrupt the " shear plane " 30 resulting from the bending of the track pin 14 by the driving mechanism. As shown, the seal consists of a ring 18 of polyurethane backed up by a ring 17 of softer elastomeric material, the ring 18 being retained in the groove and prevented from rotating by a serrated surface (22), Fig. 3 (not shown). In modifications, the ring 17 is omitted and the ring 18 replaced either by one of arcuate crosssection or one having projections adjacent the bottom of the groove for engaging the walls of the groove.
Patent GB-194830-A (GB)
Title: Improvements relating to valves for controlling hydraulic circuits
IPC: F16K11/07
Filed: 1921-12-29
Abstract: 194,830. Pigott, F. G. Dec. 29, 1921. Piston valves. - Working valves for hydraulic machinery comprise perforated sleeves surrounding the valve spindle and positioned at the inlet and exhaust ports c, d, the spindle having grooves b<1> and a reduced portion b<2>. The perforations in the sleeves may be smaller at the inner than at the outer ends.
Patent GB-800104-A (GB)
Title: Improvements in or relating to retorts for the manufacture of zinc white
IPC: C01G9/02
Filed: 1955-12-07
Abstract: 800,104. Retort furnaces. DUDEK, G. Dec. 7, 1955 [Jan. 22, 1955], No. 35054/55. Class 51 (2). A graphite retort 1 for the manufacture of zinc white comprises a pipe 7 built into the wall and formed with a transverse opening 10 for an inert scavenging gas, whereby zinc fumes are continuously and regularly driven from the retort through a passage 11 in the retort cover 9.
Patent GB-1474985-A (GB)
Title: Quinazolinones processes for producing them and compositions containing them
IPC: C07D333/24
Filed: 1974-08-08
Abstract: 1474985 Substituted 2-(IH)-Quinazolinones SUMITOMO CHEMICAL CO Ltd 8 Aug 1974 [14 Aug 1973] 35076/74 Heading C2C [Also in Division A5] Novel compounds of the Formula I wherein R is a polyalicyclic hydrocarbon group, R<SP>1</SP> and R<SP>2</SP> are independently hydrogen, nitro, CF 3  or methylsulphonyl, R<SP>3</SP> is pyridyl, thienyl or phenyl optionally substituted with halogen, nitro, CF 3 , methoxy or methyl and n is 0 to 3, may be prepared by (a) oxidizing a compound of the Formula II (b) reacting a compound of the Formula IV wherein W is oxygen or imino, with a carbamic acid ester, a carbamic acid halide, cyanic acid or a salt thereof or urea, (c) reacting a compound of the Formula V with a reactive ester of a compound of the formula R-C n H 2n OH, (d) reacting a compound of the Formula VIII wherein X 1 , X 2  and X 3  are individually halogen atoms, with ammonia, or (e) reacting a compound of the Formula IVb with a carbamic acid derivative Y-CO-Z wherein Y and Z are individually chlorine, C 1-4  alkoxy, benzyloxy, C 1-4  alkylthio, trichloromethyl or 1-imidazolyl.
Patent GB-636013-A (GB)
Title: Improvements in electrolytic condensers
IPC: H01G9/08
Filed: 1947-12-31
Abstract: 636,013. Electrolytic condensers. CHARLIN, A. M. B. Dec. 31, 1947, Nos. 35201 and 35202. Convention dates, Nov. 20, 1941, and Oct. 31, 1942. [Class 37] An electrolytic condenser comprises an aluminium casing 9 closed by a multiple-pin base 27 and contains one or more insulating vessels 14, each of which holds an electrolytic condenser 12, has its open end directed away from the base 27 of the casing and is closed by a wax or pitch plug 18 through which the leads 25 of the condenser pass to the pins 1. The casing 9 is cylindrical and each vessel 14 of synthetic resin has flat sides to form passages for the leads 25; or each vessel 14 is of annular cross-section with a central passage for the leads. Eight pins 1 may be provided and condensers in the casing may be connected in parallel, in series, or in seriesparallel. The base 27 of the casing 9 has a wax filling 28 covering the soldered connections of the insulated leads 25. The pins have reference marks. A cork or rubber wedge 29 is placed in the closed end of the casing 9. The top of each annular condenser may be closed by an annular insulating plug of synthetic resin cemented by adhesive and with conical passages for the leads and may be sealed by a pitch plug.
Patent GB-1005037-A (GB)
Title: Improvements in or relating to cushioning and foot supporting footwear
IPC: A43B3/12
Filed: 1961-09-29
Abstract: 1,005,037. Cushioned insoles. SCHOLL MFG. CO. Ltd. Sept. 29, 1961 [Oct. 4, 1960], No. 35271/61. Heading A3B. A shoe comprises an outer sole 1 and heel 2 assembly, a middle sole 7 overlying the assembly, a layer of foam cushioning material 8 overlying the middle sole 7 and possessing a flexible covering 12 which has a marginal portion turned under the middle sole and secured beneath the middle sole to the middle sole and layer 8 by a layer of stitching 14 around and passing through the marginal portion of the cover 12 and foam layer 8 prevents lateral spreading of the foam layer 8. A filler may be added. The heel and sole assembly comprises a covered wooden heel wedge 3. Further foam layers 9, 10 as metatarsal and longitudinal arch supports respectively may be incorporated with foam layer 8, a thin shaped stiffener 11 being freely disposed between layers 10 and 8 to add rigidity to the longitudinal arch support. Rows of stitching 16, 15 circumscribe these further layers 9, 10 respectively. The shoe may be a sandal in which straps 17, 17alpha are connected to further straps 20, 21 by loops 19, the ends of the straps passing under mid-sole 7 and secured between this and the outsole assembly as at 18. A further adjustable strap 22 facilitates the retention of the sandal on the foot.
Patent GB-411866-A (GB)
Title: Improvements in removing paraffin wax from oils, especially lubricating oils
IPC: C10G73/06
Filed: 1932-12-13
Abstract: Paraffin wax is separated from oils by diluting with liquefied hydrocarbons which are gaseous at atmospheric temperatures, and passing the mixture through pipes at a speed of at least 0,5 metre per sec. while cooling sufficiently to precipitate the wax. For example, 1,6 tons of cylinder oil which has been purified by liquid propane is diluted with 4,8 tons of liquid propane, and the mixture is led through a spiral pipe of 4 cm. diameter and 170 meters length at a mean speed of 2,5 meters per sec.; cooling from 20 to -10 DEG C. is effected in the first 95 meters by countercurrent exchange with the cold wax-freed oil, and from -10 to -40 DEG  C. in the last 75 meters by refrigeration.  The cold mixture, now at practically atmospheric pressure, is centrifuged, filtered, or allowed to stand to separate the wax, and the cold oil used to cool fresh oil. According to the Provisional Specification benzine or a chlorinated hydrocarbon may be used as the diluent.