baber/WOPTO huggingface dataset:
Patent GB-1183534-A (GB)
Title: Rotary disc valve
Inventor: LIEBMAN WARREN SHERWIN
IPC: F16K11/074
Filed: 1967-06-05
Abstract: 1,183,534. Valves. UNIVERSAL OIL PRODUCTS CO. 5 June, 1967 [9 June, 1966], No. 25802/67. Heading F2V. A rotary disc selector valve comprises a stator 11, which has formed therein twenty-four ports 25 equally spaced around the circumference, and five concentric circular grooves A, B, C, D and E, and a rotor 15 which is biased on to the stator by fluid pressure applied through duct 24 and has five crossover tubes (27, 28, 29, 30, Figs. 2 and 3, not shown) and 31 each one communicating with one groove and one of five ports (32-36, Fig. 3) spaced around the circumference of the rotor, each of the grooves being supplied with fluid through a line 26 such that it can be transferred from the groove, via the corresponding crossover tube to corresponding port in the rotor and hence to the selected port in the stator. Disposed between the stator and rotor, and fixed to the latter, is a plastics liner 16 having formed therein five apertures to correspond with the rotor ports and nineteen recesses 50 each one corresponding to one of the non-selected stator ports, the recesses being of slightly larger diameter than the stator ports and being positioned slightly radially inwardly toward the axis of rotation of the rotor. Within each such recess there is mounted a relatively rigid plate-like reinforcing member 51 comprising a metallic or hard plastics plate 53, which may be perforated, secured to the rotor 15 by machine screws 55 and coated with a layer of plastics material, the outer surface 56 of the plate 15 being spaced inwardly from the surface 57 of the plastics liner 16. Rotation of the rotor, as by shafts 17 and 22 coupled together by a flexible coupling member 21, brings each groove into communication with one stator port, the remaining stator ports being covered by the recesses which, by virtue of their construction, serve to prevent distortion of the liner 16 at or over these non-selected ports. In an alternative embodiment (Figs. 7 and 8, not shown) there is provided in the region of and directly over each reinforcing member 51, a set of passageways (71) which communicate with a central pressure relief vent (72), extending through the member, the arrangement serving to minimize deformation of the liner as due to accumulation of pressure between the liner and rotor.
Patent GB-1151304-A (GB)
Title: Process for the Production of Soluble and Thermoplastic Polycarbonates of High Molecular Weight
Inventor: SCHNELL HERMANN
IPC: C08G64/00
Filed: 1967-06-05
Abstract: 1,151,304. Polycarbonates. FARBENFABRIKEN BAYER A.G. 5 June, 1967 [8 June, 1966], No. 25847/67. Addition to 1,079,821. Heading C3R. In the manufacture of thermoplastic polycarbonates by reacting a bisphenol with an ester-forming derivative of carbonic acid, the reaction is effected in the presence of 0À1 to 8 mol per cent (based on the moles of bisphenol) of a monohydric phenol and 0À01 to 2 mol percent (based on the moles of bisphenol) of a more-than-dihydric phenol; the latter being of the type obtainable by condensing ap-alkyl substituted monohydric phenol with formaldehyde. Specified more-than-dihydric phenols are 2, 6- bis - (2<SP>1 </SP> -  hydroxy - 5<SP>1 </SP>- methyl - benzyl) - 4 - methyl phenol; 2,6 - bis - (21 - hydroxy - 5<SP>1</SP> - isopropyl - benzyl) - 4 - isopropyl phenol; and bis - [2 - hydroxy - 3 - (2<SP>1</SP>  -  hydroxy - 5<SP>1 </SP>- methyl - benzyl) - 5 - methylphenyl] - methane. The example describes the manufacture of a polycarbonate by reacting, under the normal interfacial conditions, phosgene with a mixture of bisphenol A, p-tertiary-butylphenol and 2,6- bis - (21 - hydroxy - 5<SP>1</SP> methyl - benzyl) - 4 - methyl phenol.
Patent GB-1278851-A (GB)
Title: Improvements in or relating to tool holding assemblies
Inventor: SIROLA FRANK
IPC: B23B29/06
Filed: 1970-05-28
Abstract: 1278851 Tool holding assembly F SIROLA 28 May 1970 25851/70 Heading B3T A tool holding assembly comprises a tool holder 10 mountable on a tool post 14 by way of co-operating male and female dovetail members 11, 13 which include a wedge member 16 operable by a handle 25 connected to a threaded bush 22 which engages teeth 27 on the wedge member. The too holder includes a pair of slidable members 33, 34 located in respective slots 39, the slots opening into a bore 32 in the holder for receiving a tool shank and also through the back face 12 of the holder. The slidable members are of a length sufficient to permit, when in engagement with a tool shank T, projection slightly beyond the back face of the holder so that when mounted on the tool post the clamping of the tool in the holder and the clamping of the holder to the post is simultaneously effected. The inner ends of the slidable members are formed with arcuate recesses to cooperate with the tool shank and the members are retained in their respective slots by screws 41 in the holder which engage resilient bushes 45 in the respective members.
Patent GB-1177830-A (GB)
Title: Improvements in or relating to Devices for Tensioning Threaded Bolts
Inventor: JENSEN FINN Q
IPC: B25B29/02
Filed: 1967-06-05
Abstract: 1,177,830. Tensioning bolts by fluid pressure. MASCHINENFABRIK AUGSBUBG-NURN. BERG A.G. 5 June, 1967 [2 July, 1966], No. 25931/67. Heading F2H. A device for tensioning a threaded bolt 6 projecting from a support 9 for tightening a nut 5 threaded on the bolt comprises a pressure fluid-operated piston and cylinder device 2, 1 coaxially arrangeable about the projecting portion of the bolt 6 whilst being supported, e.g. by a sleeve 4, on the support .9, and an auxiliary nut 3 screwable on to the bolt 6 and having a conical surface co-operating with a conical surface on the piston, the fluid pressure acting on surfaces of the piston 2 and cylinder 1 which are parallel to said conical surfaces. Preferably, all said surfaces are inclined at 60 degrees to the axis 6a of the bolt 6. A pressure fluid is introduced through a connection 8 forcing the piston 2 outwardly and thereby effecting a desired elongation of the bolt 6. The nut 5 is then tightened by a spanner until, it abuts the support 9.
Patent GB-766921-A (GB)
Title: Improvements in or relating to lubricant nipples
IPC: F16N21/02
Filed: 1954-09-08
Abstract: 766,921. Lubricant nipples. GORMAN, V. C. July 27, 1955 [Sept. 8, 1954], No. 25964/54. Class 12 (3). A lubricant nipple comprises an externallythreaded stem 1 for engaging in a threaded bore and for receiving a lock nut 3, the stem having an arm 4 disposed at an angle to enable the nipple to be fixed in place with the arm projecting in a required direction. The stem is fitted with a spring-loaded ball valve 7.
Patent GB-659709-A (GB)
Title: Improvements in the preservation of green fodder
IPC: A23K30/15
Filed: 1949-10-11
Abstract: For addition to a green fodder to be stored in a container such as a silo there is employed an agent which suppresses formation of butyric acid but promotes lactic acid comprising a water-soluble nitrate, e.g. sodium or calcium nitrate and an aluminium salt of formic acid. For better distribution over the fodder the agent may be mixed with an inert substance such as kieselguhr or with a salt having a strong osmotic action exemplified by sodium or ammonium chloride.  Examples are concerned with adding a mixture of sodium nitrate, aluminium formate, sodium chloride and ammonium chloride to a blend of equal parts of plants of peas and vetches cut before flowering and with adding a mixture of sodium nitrate, formic acid-aluminium triformate (HCOO)3 A1.  COOH and sodium chloride to a blend of after clover and grass.
Patent GB-696553-A (GB)
Title: Improvements relating to smokers' pipes
IPC: A24F7/02
Filed: 1950-10-25
Abstract: 696,553. Tobacco pipes. KEYSER, P. E., and KEYSER, A. E. Sept. 13, 1951 [Oct. 25, 1950], No. 26061/50. Class 130. A single moisture trap chamber into which mouthpiece and stem smoke bore continuation tubes 17, 23 project is formed partly by a mouthpiece (or, according to the Provisional Specification, stem) socket 28 and partly by the interior 27 of a tubulair fitting 13 having at one end a wall 16 with a spigot 18 serving as a smoke duct and screw, push or otherwise fitted in the stem (or mouthpiece) bore, and open at the other end to receive detachably therein, as by a taper fit 19, the adjacent end of the mouthpiece (or stem). As shown, the tube 17 is integral with the tubular fitting 13 and the tube 23 is bent over at its end to prevent the straight-through passage of smoke. The fitting 13 may be'of metal or plastic. According to the Provisional Specification, which refers to Specification 644,148, the fitting 13 may, where the stem is socketed, have a frictional spigot connection therewith.
Patent GB-1428051-A (GB)
Title: Coal plough cutting head
IPC: E21C27/32
Filed: 1973-05-31
Abstract: 1428051 Coal plough ZAKLADY KONSTRUKCYJNO - MECHANIZACYJNE PRZEMYSLU WEGLOWEGO 31 May 1973 26068/73 Heading E1F Each of the wedging cutters 1 of a coal plough cutting head is extendible and retractable with respect to the head independently of the other cutters in accordance with the resistance it encounters from the material it is penetrating by a piston cylinder unit 3 having a piston so bored 5 and channelled 4 that it will allow through openings and axial passages in the cylinder wall of a positive control of a slide valve associated with the unit for controlling admission and venting of pressurised fluid to and from the cylinder of the unit 3. The slide valve has a spool slidably mounted in a housing to define three chambers 9, 10, 18, within the housing in which is formed passages 7, 8, 12, 14 and 17 for connecting a fluid pressure inlet 13 to the cylinder chamber 18, an outlet 14 to the chamber 18, and the chambers 9, 10 and 18 to the cylinder 16 of the unit 3. The position of the spool valve controlling the admission of pressurised fluid through inlet 13, chamber 18, passage 17 to cylinder chamber 16 is positively maintained by this admitted fluid as the openings to the passages 7 and 8 are exposed or closed by the pressure of the fluid in the cylinder as the piston reaches the ends of its reciprocal travel through the cylinder.
Patent GB-1339305-A (GB)
Title: Injection moulding machine
IPC: B29C45/17
Filed: 1971-04-19
Abstract: 1339305 Injection moulding K HEHL 19 April 1971 [24 April 1970] 26071/71 Heading B5A The mould clamping unit 27 of an injection moulding machine is provided with a part 10<SP>1</SP> for receiving a unit injecting in a direction perpendicular to the plane of separation 34 of the mould 33 and with a slidable carriage 17 mounted on the top or side of the clamping unit 27 for receiving an injecting unit, core puller or extractor operating in the plane or parallel to the plane of separation 34. The clamping unit 27 which comprises movable and stationary plates 11, 10 is slidably mounted on a pair of struts 9 pivotally mounted on the machine base 25. The injecting units, core puller or extractor comprises internally threaded struts, e.g. 29, connected to the carriage 17 by bolts, e.g. 30, passing through bores 5, 18. The latter are provided in two pairs of carriage sleeves 1-4, one pair being set perpendicular to the groove 34 and one parallel thereto.
Patent GB-169981-A (GB)
Title: Improved manufacture of hollow bodies
IPC: E04B2/72
Filed: 1921-10-04
Abstract: 169,981. Arquint, H. Oct. 5, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Concrete vessels.-Hollow bodies such as tanks, ships' hulls, &c. are formed from a framework provided with a coating carrier or support which is covered with an impermeable wall of material. Figs. 1 and 2 show a form in which the framework comprises main girders 1 connected by distance-pieces 2 and tie-members 3, which may be arranged side by side or as shown, one within the other. Over the main girders, and connected thereto by staples 5 or fastenings 6, is placed a coating support 4 on which is plastered a coating of cement, mortar, or the like, which may contain chemicals such as ceresin. The coating may be applied by hand or by spraying &c. The coating support may consist of a series of cross bars 8, Figs. 1, 2, and 3, secured by binding wire 12 to 'thick wires 13. The cross bars 8 may be of any section, preferably tubular, channel, or angle iron, and may be mounted on both sides of the wires 13. Fig. 7 shows a ship's hull constructed in the same manner as the body shown in Figs. 1 and 2. The bodies may be provided with diagonal tension members 14 adjusted by turnbuckles 15.
Patent GB-276524-A (GB)
Title: Improvements in or relating to laminated springs for vehicles
IPC: B60G11/08
Filed: 1926-10-21
Abstract: 276,524. Brockhouse, J. T., and Brayshaw, B. Oct. 21, 1926. Laminated springs.-Means for increasing the lateral stability of vehicles having transverse laminated springs comprise an additional plate spring secured between the main spring and the frame or axle and having resilient end portions. In the construction shown in Fig. 1, the main spring 1 is secured at its middle to a transverse frame member 5 and at its ends to the axle 4. The additional stabilizing spring 7 is clamped between the main spring and the frame and its ends are made of open loop shape so as to engage between the main spring and the transverse frame member 5 and resist lateral tilting.
Patent GB-304838-A (GB)
Title: Improvements in hydro-pneumatic shock-absorbing devices
IPC: F16F9/08
Filed: 1927-10-06
Abstract: 304,838. Carter, A. Oct. 6, :927. Pneumatic springs.-An inflatable elastic chamber 17 is anchored within an outer casing 16, the space between the two being filled with liquid which communicates with a cylinder 2 having a plunger 1 which is thus spring- supported, the casing being fitted with means for indicating the degree of inflation of the elastic chamber. The chamber 17 is positioned within the casing 16 by springs 20 and also by the spring 21 which is associated with one indicator 23 for the degree of inflation. Air may be supplied through a valve 5. In a modification, the plunger carries the casing 16 directly.
Patent GB-666493-A (GB)
Title: An improved electro-dynamic oscillograph
IPC: H04R9/02
Filed: 1948-10-11
Abstract: 666,493. Light valves. LAFFON Y SOTO, A., and SELGAS Y MARIN, E. DE. Oct. 11, 1948 [Nov. 19, 1947], No. 26403/48. Class 40 (iii). A light - modulating device comprises a light obturator 6 carried by a short-circuited moving coil system 3 which is suspended (by means not shown) for free axial movement in an annular air gap 11 between an annular magnetic pole 1 and a central magnetic core 5. Modulating current is supplied to coils 2 and 4 supported respectively by the pole and core concentrically and coaxially with the coil 3.
Patent GB-301594-A (GB)
Title: A supporting attachment for ladders
IPC: E06C1/20
Filed: 1927-10-06
Abstract: 301,594. Abbott, S. S. Oct. 6, 1927. Ladders.-A supporting attachment for ladders consists of two boards E and C hinged together, one carrying hooks F for attachment to the rungs of a ladder while the other carries legs A pivoted thereto to open laterally. A block D on the board C limits the opening of the boards from each other amd also acts as a stop to the top ends of the legs A. The attachment may form the rear support of a step ladder in which case the hooks are not used.
Patent GB-339255-A (GB)
Title: Process for the manufacture of rubber-like masses and articles therefrom
IPC: C08F236/10
Filed: 1929-08-30
Abstract: 339,255. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Aug. 30, 1929. Emulsions, making.-A mixture of a diolefine, such as isoprene, butadiene, or a methyl butadiene, and styrene is emulsified in water and polymerized to obtain rubber-like and other plastic products. In an example 150 parts of the mixture is emulsified with a solution of 15 parts of sodium stearate or sodium mono- or dialkylnaphthalene sulphonate in 150 parts of water, with or without addition of salts, colloids &c. In other examples the emulsifying agent comprises a mixture of glue and potassium mono- or di-isobutylnaphthalene sulphonate, or of the hydrochloride of diethylamino-ethyloleylamide and 30 per cent'acetic acid.
Patent GB-826294-A (GB)
Title: Motor speed control
IPC: H02P25/32
Filed: 1957-08-22
Abstract: 826,294. Automatic speed control systems. AIR REDUCTION CO. Inc. Aug. 22, 1957 [Sept. 5, 1956], No. 26535/57. Class 38 (4). The speed of a series motor with armature 10 and field winding 11 is controlled by comparing the voltage developed across resistance 24 by a motor-driven tachogenerator 16 with the pre-set voltage between supply point B and the slider of potentiometer 18 and feeding the error signal to the grid of valve 23, where it is amplified and passed to cathode follower 31. The changing current in control winding 35 of saturable reactor 36 alters the impedance of windings 37 and 38 which together with resistance 40 form a phase-shift network supplying a signal of changing phase from transformer 13 to the grid of gas-filled triode 12 through which the motor current passes, to control its striking time.
Patent GB-922931-A (GB)
Title: Process for waterproofing explosives
IPC: C06B21/00
Filed: 1960-07-29
Abstract: 922,931. Explosive compositions. DYNAMIT NOBEL A.G. July 29, 1960 [July 30, 1959], No. 26535/60. Class 9 (2). The crystalline water-soluble constituents of an explosive mixture are waterproofed by applying to the surface of the crystalline constituents an hydrophilic component and then an ionogenic waterproofing component, thus producing a waterproofing substance in situ on the surface. The hydrophilic component may be a solution of one or more inorganic salts such as calcium chloride or zinc chloride and the waterproofing component may be a solution of a fatty acid such as stearic acid or a solution of ammonium stearate or a sodium higher alkyliminodiacetate, when an acid is used it must be neutralized for example with ammonia or an amine after application. In a typical example (1) a solution of calcium chloride and zinc chloride in water and ethanol was sprayed on to a mixture of potassium nitrate, containing a trace of tetryl, and ammonium chloride and then mixed. Stearic acid dissolved in ethanol was then sprayed on and ammonia blown on. The product was then mixed with aluminium hydroxide, a mixture of nitroglycerine and nitroglycol, collodion wool and guer meal.
Patent GB-461091-A (GB)
Title: Improvements in and relating to reflector devices for kerbs and the like of roadways
IPC: E01F9/053
Filed: 1935-09-26
Abstract: 461,091. Reflectors. HAILWOOD, E. A. Sept. 26, 1935, No. 26601. [Class 97 (i)] A reflector to be mounted in a kerb &c. to reflect the light of an oncoming vehicle &c. comprises a glass body having a central reflecting part A of roughly eggshape, around which is a cup or funnel-shaped outer part B projecting a substantial distance beyond the surface A<2> of the part A. The rear surface of the part A is silvered and may be provided with a metal cap C. The reflecting surface may be faceted &c. and the outer surface of the cup B may be silvered, faceted, &c. The surface A<2> may also be faceted or it may be made concave as indicated at A<3>. The reflector is secured within a kerb with the outer rim B<1> flush with the kerb surface. For mounting in a curved kerb, this rim may be inclined to the axis of symmetry of the reflector, as indicated at A<4>.
Patent GB-368793-A (GB)
Title: Improvements relating to the production of water-free ethyl alcohol
IPC: B01D3/00
Filed: 1930-09-05
Abstract: <PICT:0368793/III/1> Alcohol is dehydrated by submitting it in vapour form to a countercurrent of an anhydrous water-abstracting agent capable of being converted by heat from the aqueous state into the molten state without passing through the solid phase, e.g. potassium acetate, the salt being dissolved in absolute alcohol before entering the treatment column or supplied in a fused state to the column where it dissolves in the ascending alcohol.  Aqueous alcohol is supplied through a pipe a to a column A heated at the bottom and fed at the top through a pipe b with a solution of anhydrous potassium acetate in absolute alcohol supplied from a mixing vessel C.  The dehydrated vapours are condensed in a cooler B and part of the condensate is fed through a pipe f to the mixer C to dissolve the molten acetate.  The diluted salt is removed from the bottom of the column and pumped by a pump P to an evaporator E where the water is driven off, the molten anhydrous salt being returned to the mixing vessel C through a pipe w.
Patent GB-476862-A (GB)
Title: Improvements in roller bearings
IPC: F16C19/49
Filed: 1937-10-04
Abstract: 476,862. Conical roller bearings. GAYNOR, G. A. Oct. 4, 1937, No. 26806. Addition to 474,143. [Class 12 (i)] The bearing described in the parent Specification is modified by providing conical rollers c with recessed ends c<1> so that the thrust ring d engages each roller at two approximately diametrically opposite points. Specification 406,213 is referred to.
Patent GB-1317045-A (GB)
Title: Automatic control of mining machines
IPC: H02P29/40
Filed: 1970-06-04
Abstract: 1317045 Automatic speed and current control EICKHOFF MASCHINENFABRIK U EISENGIESSEREI mbH Gebr 4 June 1970 [20 June 1969] 26913/70 Heading G3R [Also in Division H2] A mining machine of the type having a variable speed electric winch motor and a cutting tool electric motor is automatically controlled so that the speed of the winch motor is maintained at a reduced value when the cutting tool motor is either idling or loaded beyond a desired maximum value, and attains a normal preselected higher value only when the tool motor is operating at its normal cutting load. The current taken by the cutting tool motor 2 is sensed by transformer 5 and applied to a limiter 22 which, at idling current levels of the motor, prevents a control member 24 from starting a servomotor 21 to adjust a potentiometer 20 to its position manually pre-set by a switch 10, the potentiometer setting determining the desired speed of the winch motor 3 under cutting conditions. When cutting commences, the tool current signal blocks the limiter 22 to allow operation of members 21, 24, the action being reversed when the motor 2 again idles to restore the servomotor 21 to its initial position. The current signal from transformer 5 and that from transformers 6 indicative of the winch motor current are applied to an OR gate 9 which passes the greater signal to a limiter 15 receiving the output of a member 14 supplied with the error signal of a comparator 11 fed with the desired speed signal of potentiometer 20 and an actual speed signal from a tachogenerator 12. When the output of gate 9 exceeds a pre-set value, it causes the limiter 15 to modify the output signal of member 14 and so control, via switch unit 17 and pulse generators 18, 18', the firing angle of thyristors 19 or 19' to reduce the winch motor current. Motor and thyristor temperature sensers 25, 25' also modify the signal supplied by member 14. If the winch motor speed exceeds the maximum attainable by its armature control system, a monitor 43 switches on to pass the combination of the output of member 14 and a reference signal 50 to a pulse generator 46 controlling a thyristor 47 in the field winding 48 of the motor 3. A limiter 32 and time delay unit 33 respond to overcurrent lasting longer than a predetermined time and cause the unit 17 to switch from members 18, 19 to 18', 19' to reverse the motor. During switchover the thyristors 19' are fired to allow the motor 3 to operate as a generator, voltage sensing resistors 34 controlling the unit 17 to ensure that switchover to the regenerating range occurs at the zero transition of the voltage half waves. An RC circuit 49 ensures that the motor drive current reduces gradually and another such circuit 38 causes member 24 to restore the servomotor 21 to its initial position and so provide reverse operation of motor 3 at reduced speed. Continued reversals of the motor 3 due to an overload on the winch causes a timer 39 and AND gate 40 to disengage the switch 10 and stop the machine.