baber/WOPTO huggingface dataset:
Patent GB-1416405-A (GB)
Title: Process for preparing styrenic polymer particles
IPC: C08J9/16
Filed: 1973-07-27
Abstract: 1416405 Preparation of particulate styrenetype polymers SEKISUI KAGAKU KOGYO KK and SEKISUI KASEIHIN KOGYO KK 27 July 1973 35994/73 Heading C3P Particles of styrenic polymer (i.e. homo- or co-polymers of styrene and derivatives thereof) are prepared by suspending in water, styrenic polymer particles having a size of 0À4 to 1À8 mm. and adding to the suspension a styrenic monomer, an initiator and a polymerization retarder having a molecular weight of at least 200 in an amount of 1/200 to 1/15 mole per mole of initiator, while maintaining the suspension under conditions such that styrenic monomer absorbed by the polymer particles present is polymerized to form larger particles of substantially uniform size. Preferably the final product particles are constituted from 5-60 wt. per cent of the originally suspended particles and 95-40 wt. per cent of the monomer(s). Other agents such as flame retardants, colourants, lubricants and foaming agents (to produce foamable particles) may also be present during polymerization. Examples of suitable retarders and their molecular weights are: 3,5-dit - butyl - 4 - hydroxytoluene (220); 1,1 - bis- (4 - hydroxyphenyl) - cyclohexane (268); 4,4- butylidene - bis - (3 - methyl - 6 - t - butyl phenol) (383 ) ; 1,3,5-trimethyl-2,4,6-tris-3,5-dit - butyl - 4 - hydroxybenzyl benzene (775); 2,21 - methylene - bis - (6 - t - butyl - 4 - methylphenol) (352); dilaurylthiodipropionate (515); 4,4<SP>1</SP> - thiobis - (3 - methyl - 6 - t - butyl phenol (359); N,N<SP>1</SP> - di - # - naphthyl - pphenylene diamine (360) and N-phenyl-N-isopropyl-p-phenylene diamine (226À3). In the examples, the polymer is homopolystyrene or a styrene/methylmethacrylate copolymer. Foaming agents specified are propane, butane, pentane, cyclobutane, cyclopentane, methyl chloride, dichlorodifluoromethane, propylene isobutane, butene-1, cis- and trans-butene-2, isobutene, neopentane, butadiene, ethyl chloride, vinyl chloride, dichlorofluoromethane, chlorotrifluoromethane, and chlorodifluoromethane. In Example 14, n-pentane is used to produce foamable particles.
Patent GB-778483-A (GB)
Title: Improvements in or relating to compression refrigerating systems
IPC: F25B9/00
Filed: 1955-12-16
Abstract: 778,483. Refrigerating. YORK SHIPLEY. Ltd. Dec. 16, 1955 [Sept. 2, 1955], No. 36133/55. Class 29 A compression refrigerating system includes a refrigerating circuit charged with a mixture of two refrigerants, one being a higher pressure refrigerant than the other, i.e. at a specific temperature having a higher pressure than the other, and has means for varying the proportions of the refrigerants in the mixture. The preferred means for varying the proportions of the mixture is responsive to the electrical power input to the compressor which, it is shown, varies with evaporator and condenser temperatures, as well as to the normal thermostat responsive to the refrigerating load on the system. The refrigerant circuit comprises a compressor 10, condenser 12, overflow pot 14, expansion valve 24 and evaporator 26 and holds a fixed amount of mixed refrigerant. A reservoir 28 contains a quantity of mixed refrigerant from which the higher pressure of refrigerant is boiled off by heater 46 in the circuit through rectifier 30 and condenser 48 into the overflow pot 14. Line 50 drains excess refrigerant into the rectifier. When it is desired to reduce the proportion of high pressure refrigerant in the circuit, three-way solenoid valve 20 is opened, allowing the contents of the reservoir 28 to flow into the circuit, when the original proportions of the mixture will be obtained. In Fig. 3 is shown the control system for the electric heater 46. An ammeter is placed in the supply line to the electric motor 34 of the compressor and fluctuations of power input from an optimum value, specified at 5150 watts, bring either of two circuits in operation. Switch 40 is always closed and when the compressor motor current input drops, indicating a low evaporator temperature and the need for 'more high pressure refrigerant in the circuit, switch arm 45 contacts pole 36 and energizes the heater 46. When the compressor motor current is high switch arm 45 contacts pole 38 closing the circuit to the solenoid valve 20 which opens and allows refrigerant from the reservoir to flow into the circuit. Superimposed on this control system is a system responsive to refrigerating load and operated by a thermostat 58 brought into circuit by switch 42. A heat pump, circuit is also described (Fig. 2, not shown) having the same control system when the pump is used as a heater but opening switch 40 when used as a refrigerator. Dichlorodifluoromethane and bromotrifluoromethane are the refrigerants specified, the latter being the frigerant of higher pressure.
Patent GB-1073257-A (GB)
Title: Carbon or graphite body and method of forming same
Inventor: DIEFENDORF RUSSELL JUDD
IPC: C04B35/52
Filed: 1964-09-03
Abstract: An impregnated body of carbon or graphite is formed by immersing a carbon or graphite body in a liquid organic phosphate, boiling the phosphate under reflux conditions so that the body becomes welded, removing the excess liquid phosphate, and heating the welded body in an inert atmosphere to decompose the phosphate and form the impregnated body.  The organic phosphate may be trimethyl, triethyl or tricresyl phosphate; the inert atmosphere may be argon or nitrogen.  In the example, a commercial graphite rod was impregnated with trimethyl phosphate and, after removal of excess liquid phosphate, was heated to a temperature of 1000 DEG  C. in an argon atmosphere.  Apparatus in which the impregnating and heating stages may take place is described and illustrated in the Specification.
Patent GB-1007846-A (GB)
Title: Preparation of 1,2,4,5 - tetrafluorobenzene
Inventor: TILNEY-BASSETT JULIAN FRODO
IPC: C07C25/13
Filed: 1963-09-13
Abstract: The invention comprises 4-chlorotetrafluorophenylhydrazine (a) and 4-bromotetrafluorophenylhydrazine (b), these compounds being made by reacting with hydrazine hydrate chloro- or bromo-pentafluorobenzene. Compounds (a) or (b), or pentafluorophenylhydrazine may be reacted with a source of OH- or O-alkylions to give 1,2,4,5-tetrafluorobenzene.
Patent GB-368804-A (GB)
Title: Improved apparatus for picking or harvesting fruit from trees
IPC: A01D46/247
Filed: 1930-12-02
Abstract: 368,804. Gathering fruit. INSTONE, A. E., Stonehurst, Cambridge Road, Aldershot. Dec. 2, 1930, No. 36264. [Class 6 (iii).] The picking end of a long arm a is supported by resting it upon support pins I fixed one on each side of a basket carrier H that runs up and down a substantially vertical pole A, the lower end of which is in the form of a tripod. The carrier H runs on pulleys and is moved up and down the pole A by a cord passing over pulleys J, J<1> being fixed in any required position by a wedge K. Legs D are fixed to the bottom part of the pole A in such a way that they may be folded against the pole, ties G being provided to hold the legs in position. The appliance is fixed in position by a pin B. The long arm comprises basin-like clappers consisting of cloth-covered wire frames, having a V-shaped opening at the top. The clappers are connected by links e to'a sprung hook g controlled by means of a cord passing round a pulley h connected to a lever i linked to the arm a. The Provisional Specification describes also the mounting of the pole A on a hand truck, the lower end of the pole being pivoted and the inclination thereof being adjusted by means of a pin engaging holes in a guide.
Patent GB-750387-A (GB)
Title: Improvements in or relating to pump assemblies
Inventor: ANGELL PIERCE TONEY
IPC: F01D17/06
Filed: 1953-03-18
Abstract: 750,387. Centrifugal pumps; elastic-fluid turbines. THOMPSON PRODUCTS, Inc. March 18, 1953, No. 36291/54. Divided out of 750,311. Drawings to Specification. Classes 110(1) and 110(3) A pump assembly comprises a pump impeller and a driving means connected by a shaft, the shaft carrying means made of magnetizable material and rotatable in an annular magnetic field to generate a signal, speed regulating means for the driving means being controlled in response to variations in the signal. The subjectmatter is identical with that described in Specification 750,311, but the claims differ.
Patent GB-1281951-A (GB)
Title: Circular knitting machine
Inventor: VENCZEL JOSEPH
IPC: D04B35/18
Filed: 1969-07-18
Abstract: 1281951 Photo-electric apparatus ELECTRONIT Ltd 18 July 1969 36395/69 Addition to 1186985 Heading G1A [Also in Divisions D1 and H3] In a circular knitting machine of the kind described and claimed in the parent Specification, the control circuit is modified by the substitution of a free-running multi-vibrator for the monostable circuit 25, 26 of Fig.3 of the parent. The circuit runs at the frequency (set by variable resistors 30, 39) of passage of knitting needles past the sensing arrangement, which may as before be a photo-transistor, or if steel needles are used, be a magnetic sensor. The initial timing signals produced from the output of the trigger circuit 19, 20 are used to synchronize the freerunning multi-vibrator, which includes a capacitor 38 instead of the resistor 28 used in the monostable circuit. The arrangement is suitable for use when the needles are evenly disposed around the mount, without gaps, and allows detection of both missing and broken needles.
Patent GB-1487174-A (GB)
Title: Fixing device
IPC: F16B37/12
Filed: 1974-10-15
Abstract: 1487174 Screw sockets B N SHEADER 15 Oct 1974 [31 July 1973] 36419/73 Heading F2H  A screw socket comprises a cylindrical sleeve 1 of deformable material, e.g. rubber or plastics, and a nut 2, e.g. of metal or plastics, the nut 2 having a shank portion 4 engaged in the end of the sleeve 1 and a flange portion 6 having an undercut face 7 engaging the end of the sleeve and defining an annular dished recess for housing the end face 1a of the sleeve to prevent the sleeve slipping over the nut when the sleeve is compressed between the nut and the head of a screw. The undercut may be straight or radiused (Fig. 2A, not shown). The shank portion 4 may be ridged or knurled to grip the interior of the sleeve. The sleeve may have radial projections 8 to resist rotation. Various alternative shapes for the end face 1a of the sleeve are disclosed (Figs. 3A-3G, not shown). As in Fig. 4 (not shown) an annular bead (20) on the nut may be provided to engage an internal annular groove (19) in the sleeve 1.
Patent GB-1215611-A (GB)
Title: Prime mover or motor, operable by any pressurised fluid, particularly for incorporation in the wheel structures of automotive vehicles
Inventor: PEDRICK ARTHUR PAUL
IPC: B60K5/00
Filed: 1968-07-21
Abstract: 1,215,611. Motor vehicles. A. P. PEDRICK. 31 July, 1968, No. 36483/68. Heading B7H. A revolving cylinder motor may be located in a wheel of a motor vehicle. The motor may be operated by pressurized fluid or may be an internal-combustion motor. As shown, an engine 23 is coupled to an air compressor 24 by which motors 25 in each of four wheels of a vehicle are driven. A steam boiler on a trailer drawn by an automobile may supply steam to motors in each of the four wheels of the automobile. A motor may be located in the rear wheel of a motor cycle. A vehicle having a number of wheels each having an independent suspension for negotiating very rough or unundulating ground surfaces, is described.
Patent GB-1376557-A (GB)
Title: Earth-rolling vehicles
IPC: E01C19/28
Filed: 1973-08-01
Abstract: 1376557 Vibratory rollers RICHIER 1 Aug 1973 [3 Aug 1972] 36567/73 Heading B7H An earth rolling vehicle comprises two frames 1a, 1b each carrying a roller 2a, 2b, and connected by a pivot with driving wheels 14 connected to a drive means which is arranged between the frames to urge each of the driving wheels against both the rollers. As shown in Fig. 1 the drive means, comprising a speed reducing device 15 driven by a motor 16, is mounted on a support 17 which is connected, by a ball joint 18, 19, to the shaft 5 of a ball joint connection 7, 6 between the frames la, 1b. Ball joints 9, 10, 13 are also used for connecting a curved bar 8 and a steering hydraulic jack 11, 12 respectively to the respective frames la, 1b. The wheels 14 have pneumatic tyres which bear against the rollers 2a, 2b and ensure a good traction therebetween. A transmission 20 interconnects out-of-balance weight shafts mounted in the rollers 2a, 2b which are vibrated thereby. The frames may alternatively be connected by a universal joint.
Patent GB-1437217-A (GB)
Title: Microprogramme-controlled data processing systems
IPC: G06F11/36
Filed: 1973-08-01
Abstract: 1437217 Microprogram controlled processor SIEMENS AG 1 Aug 1973 [4 Aug 1972] 36582/73 Heading G4A A microprogram controlled processor has a read only store containing microinstructions, and a working (read/write) store containing diagnostic microprogram instructions and is arranged, in response to a predetermined count (e.g. 0) in a counter which is arranged to be loaded under microprogram control and decremented as each microinstruction is executed, to switch to operation under the control of the diagnostic microprogram in the working store, completion of the diagnostic microprogram causing a switch back to operation under control of the microinstruction from the read only memory. A one bit indicator store, loaded under microprogram control or manually, indicates whether the processor is operating under the control of the read only or working store microprograms. The counter may also be loaded manually.
Patent GB-1505283-A (GB)
Title: Wafer coating machine
IPC: A21C15/00
Filed: 1975-09-08
Abstract: 1505283 Coating apparatus HEBENSTREIT GmbH 8 Sept 1975 [23 Aug 1975] 36841/75 Heading B2L In apparatus for coating wafers conveyed below a contra-rotating coating roller 18', the coating head 16' is movable to an inoperative position shown after a preset number of wafers have passed so that the top wafer of a block is uncoated. Wafers are sensed by a contact switch 20 connected to a control mechanism 15, so that after a preset number have passed, the coating head is tilted about axle 17 by fluid cylinders 19'.
Patent GB-1076377-A (GB)
Title: Improvements in spark gap type of surge arrestor for a d-c system
IPC: H01T1/06
Filed: 1965-08-27
Abstract: 1,076,377. Surge arresters for D.C. systems. GENERAL ELECTRIC CO. Aug. 27, 1965 [Sept. 17, 1964], No. 36887/65. Addition to 1,026,021. Heading H2H. The surge arrester of Specification 1,026,021 is modified to respond selectively to switching or lightning surges by providing the main electrodes 22, 24 with further arc-running portions forming a blow-out region 25c opposite to the original one 25b. Also the magnetic blowout coils 28, 30 are respectively wound with a small and a large number of turns and with opposing effect, so that with both coils in circuit (a condition occurring for switching surges) the coil 30 predominates to drive the arc into region 25b which has a relatively high impedance compared to region 25c. The occurrence of a light - ning surge causes the coil 30 to be shorted out and the arc is driven by the coil 28 into the region 25c whose relatively low impedance prevents the build-up of excessive voltage across the protected equipment 14. The coil 30 is shorted out by the breakdown of a surge arrester 70 generally similar to that of Specification 1,026,021 but constructed to have its arcrunning region 75 of low impedance like that of 25c. This impedance variation is obtained by varying the spacing between the insulating plates sandwiching the main electrodes, Fig. 4 (not shown), and the two arresters are mounted one on top of the other in a common sealed housing, Fig. 2 (not shown). Constructional details of the arresters are given and the operation under switching or lightning surges is described in detail. Members 20, 82, 86 may be omitted.
Patent GB-1451922-A (GB)
Title: Lubricant compositions and additive concentrates
IPC: C10N10/10
Filed: 1973-08-03
Abstract: 1451922 Lubricants and additive concentrates ORE-LUBE CORP 3 Aug 1973 [4 Aug 1972] 36900/73 Heading C5F A composition for making a lubricant comprises a petroleum base oil with 5 to 15% by volume of particles of MoS 2  of a size from 0À15 to 0À9 micron and 5 to 15% of a polymethacrylate VI-improver of the formula where R is an alkyl group of 4 to 20 carbon atoms, the R groups being all the same or mixed, and n is a number providing an average molecular weight between 100,000 and 750,000. An additive concentrate comprises 20 to 88% of the above composition, 4 to 13% of a corrosion inhibitor, 4 to 11À5% of anti-wear agent and petroleum base oil to 100%. The corrosion inhibitor may be a hindered phenol and the anti-wear agent an antimony dialkyl dithiocarbamate. The concentrate may also contain a silicone anti-foam agent. Lubricant compositions comprise blends of the above additive concentrate with mineral oil or with mineral oil and from 5 to 25% of a synthetic diester. The lubricants may also contain minor proportions of any or all of the following: an extreme pressure agent, a pour-point depressant, a detergent. a dispersant, or an additive that has more than one of these functions. Among the hindered phenols listed are some that contain sulphide or amine groups in their molecules. Other oxidation and rust inhibitors are salts of diester dithiophosphoric acids, alkaline-earth thiophenates and p,p<SP>1</SP> - dioctyldiphenylamine. Other anti-wear agents are antimony dialkyl phosphorodithioates. Basic aromatic sulphonates or mahogany sulphonates may be present.
Patent GB-522914-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B37/04
Filed: 1938-12-20
Abstract: 522,914. Photographic cameras; actuation of switches. BRONZAVIA SOC. ANON. Dec. 20, 1938, No. 37099. Convention date, Dec. 20, 1937. [Class 98 (i)] [Also in Group XXXVII] A device for producing current impulses of definite length but of adjustable frequency, for controlling a camera for aerial or other photography comprises a movable body which operates contacts during movement over a definite section of its path, during which its speed is constant, the length of the whole path being variable in order to vary the time intervals between the impulses. In the apparatus shown, a motor 4 with a centrifugal speed-regulating brake 5 rotates, through gears 8, 9 and a helical transmission, a screw 11, and block 13 slidable but not rotatable on a rod 14 parallel to the screw 11, carries a finger 16 which engages the screw, the block being thus moved along the rod against a spring 15 until a lug 24 carried by it engages an inclined surface on a member 23. This causes the block and rod 14 to turn so that the finger 16 is disengaged from the thread 11, the angular movement being completed by a snap-over spring 18 secured to an arm 17 on the rod 14 and to a bell-crank lever 19. As soon as the finger 16 is disengaged the spring 15 drives the block 13 to the end of the rod, where it strikes an abutment 20 on the lever 19 which turns the lever so that the snap-over spring 18 secured to it reverses its action and rotates the rod 14 back to the first position, causing the finger 16 on the block 13 to re-engage the thread 11. In so turning, the block 13 engages the lower end of a lever 13, as shown in Fig. 3, and moves it so that a contact blade 30 carried by it makes circuit with a fixed contact blade 28. This contact is maintained until the blade 13 is moved by the screw 11 to a point where it clears the lever 31, thus producing an impulse of fixed duration. The period between the impulses is varied by adjusting the member 23 parallel to the rod 14, thus varying the length of travel of the block 13.
Patent GB-885055-A (GB)
Title: Improvements in or relating to dental articulators
IPC: A61C11/08
Filed: 1959-11-03
Abstract: 885,055. Dental articulators. ELLENBOGEN, J. Oct. 11, 1960 [Nov. 3, 1959], No. 37212/59. Class 81 (2). A dental articulator has a base-plate member 10 having an upright column 12 at its rear edge, said column having a threaded upper portion 42. A flat, horizontal arm 14 is slotted to fit over the threaded portion 42, being retained by a nut 46, and has a ball-joint 28 at its free end to carry a second plate member 16. Each plate member has releasable clamping means 24, 20 for securing the models. The height of the arm 14 is set by the insertion of various spacing members 44 and, to enable the models to be separated, the lower part of the column 12 is articulated on a pivot 52, the working position being determined by a stopscrew 56.
Patent GB-1134858-A (GB)
Title: Improvements in methods of vacuum packaging
IPC: B29C65/18
Filed: 1967-08-14
Abstract: 1,134,858. Packaging-machines. ANDERSON BROS. MFG. CO. 14 Aug., 1967 [25 Jan., 1967], No. 37301/67. Heading B8C. A method of vacuum packaging fluent material in a container that has a deformable base wherein the container is initially only partly filled comprises evacuating the container in an enclosure, sealing a cover on and then exposing it to the atmosphere so that the base deforms thereby reducing the volume of the container to that of the contents. Each container may be formed by heating a web of thermoplastic material 31 and moulding it by mechanical or fluid pressure. The mould 34 moves down to allow the web to be moved on by grippers 46, themselves moved by piston 47, to the filling station 49. Alternatively preformed containers may be used. A web 51 is then fed over the containers and at the evacuating station X both are enclosed in an enclosure 52, 53 where air is withdrawn via conduit 57 and valves 56. A sealing head 54 e.g. for pressure sensitive, heat sensitive, high frequency sealing &c. then seals the web 51 on to the flange around the container. Filling, evacuating and sealing may be performed at a single station if required (not shown or detailed). As shown the deformable part of the base 12a includes circular grooves of V cross-section. When valve 56 is turned to connect the enclosure with the atmosphere the base is moved towards the container top by the pressure, part 12a reversing its curvature. Cutters 65, 66 sever the containers from the web.