baber/WOPTO huggingface dataset:
Patent GB-1488153-A (GB)
Title: Projector
IPC: G03B21/134
Filed: 1974-09-04
Abstract: 1488153 Projecting electro-optic display MINNESOTA MINING & Mfg CO 4 Sept 1974 38674/74 Heading G2J [Also in Divisions G4 and G5] An image projection system comprises an overhead projector, Fig. 1 (not shown), an electro-optic cell 20 having a liquid crystal layer sandwiched between X-conductors 22 and Y-conductors 24, means for selectively impressing a voltage greater than the threshold of the liquid crystal to selected junctures of the X and Y conductors and means for restricting the voltage to-less than the threshold at non-selected junctures. The cell 20 is placed on the projection stage of the projector and the image formed in the cell by the selectively applied voltage is projected on to a screen. Fig. 3 shows a terminal 30 for one X-strip 22 and a terminal 31 for one-Y strip 24. When low voltage impulses are applied to both terminals, the full voltage of a source 34 is applied across the strips. When a pulse is applied to only one or to neither terminal, the transistor and voltage dividing network shown applies only one third of the source voltage across the strips. Fig. 4 (not shown) is a block diagram of an arrangement for applying the impulses comprising a keyboard (K), memory (M), clock (C), and row and column drivers (RD, CD).
Patent GB-387767-A (GB)
Abstract: 387,767. Illuminating X-ray negatives. ALLOM, G., 15, George Street, Hanover Square, London. Oct. 15, 1931, No. 28681. [Class 3 (ii).] Apparatus for examining X-ray negatives comprises a support for the negative, means for diffusing light from a source to illuminate the negative uniformly and means for varying the degree of illumination. In the form shown, the negative A is secured by clips 4 on the front surface of a ground glass screen 3 mounted in an opening in the casing 1, the back 10 of which is provided with a diffusing surface. Lamps 11 mounted in reflectors 12 are provided at the base of the casing, a screen 13 being provided to prevent direct rays from reaching the screen 3. To regulate the degree of illumination shutters 14 are pivoted above the lamp and interconnected by a link 15 controlled by a knob outside the casing. To adapt the apparatus for varying sizes of negative, blinds 8, 9 are provided mounted on rollers 8a, 9a for horizontal and vertical adjustment. A trough 19 may be fitted at the base of the screen 3 to collect the liquid from a negative examined whilst wet.
Patent GB-1116777-A (GB)
Title: Power-actuated tool
IPC: B25C1/14
Filed: 1966-08-31
Abstract: 1,116,777. Cartridge actuated tool. OLIN MATHIESON CHEMICAL CORPORATION. 31 Aug., 1966 [2 Sept., 1965], No. 38785/66. Heading F3C. [Also in Division B4] A cartridge-actuated tool comprises a barrel 4 mounted in a housing 2 and having a muzzle end attached to a guide means 8 and a sleeve 108 slidably mounted in the latter and arranged to actuate a cocking member 42 via a sensing member 70. As shown, the sensing member 70 is in contact with a flange 110 on the sleeve and with the cocking member 42, a spring-loaded detent 38 extending from a firing pin 28 and passing through a hole 48 in the cocking member; the cocking member is retained in a slot 68 in the barrel by means of a spring ring 72. The barrel is slidable in the housing and is retained therein by means of a screw 78, Fig. 7, engaging in a Z-shaped slot 82, 86, 84. In operation, upon pressing the end face 158 of the sleeve against a workpiece, the firing pin is cocked, thereby bringing the spring-loaded detent 38 into line with a sear 52 formed on a trigger 50. When the trigger is actuated the cartridge 152 is fired and the piston 6 driven forwardly. In the event of an overtravel of the piston, a tapered portion 92 thereon abuts a tapered surface 116 in the sleeve and the energy is absorbed by a rubber buffer 12. In order to eject the spent cartridge, the guide means 8 is gripped and by pulling and rotating the barrel the latter is withdrawn, thereby causing an ejector (122, Fig. 8) to abut the screw 78 and so eject the cartridge through an opening 16 in the housing.
Patent GB-1006446-A (GB)
Title: Cooking range
Inventor: FELLOWS DEREK BERNARD
IPC: F24C15/14
Filed: 1961-10-31
Abstract: 1,006,446. Gas cookers. SMITH & WELLSTOOD Ltd. Aug. 20, 1962 [Oct. 31, 1961], No. 38830/61. Heading F4W. In a cooking range having a hot plate 12 heated by gas burner 31 a combustion chamber 23 is supported by and closely interfits with tray 14 mounted below the hot plate in a well 10 above an oven 11, the unit comprising the combustion chamber and tray being arranged to catch spillage from the hot plate and being removable from the range to facilitate removal of spillage. The tray (Fig. 4) has upstanding walls 17 provided with flanges 18 which are sandwiched between the hot plate 12 and ledges 13. One of the walls 17 is provided with a duct 20 which communicates with a flue 21 through an aperture in a wall 22 of the wall 10, and the base of the tray has an opening 16 surrounded by upstanding walls 19. The combustion chamber 23 fits into the opening 16 with flanges 28 on two of its walls 27 resting on the walls 19 of the opening. A third wall 24 is provided with an opening 29 through which projects a nozzle 30 of the burner 31, and a fourth wall 25 has a flange 26 which is sandwiched between the hot plate and one of the ledges 13. The fit between the combustion chamber and tray is close to inhibit leakage of spillage into the well 10. Baffle plates 32 and 34 are placed in the combustion chamber to direct combustion products upwardly towards the hot plate.
Patent GB-1527753-A (GB)
Title: Method of manufacturing adsorbent materials and their use in waste water purification
IPC: C02F1/28
Filed: 1975-09-23
Abstract: 1527753 Preparing polymer-absorbent blends MITSUBISHI RAYON CO Ltd 23 Sept 1975 [26 Sept 1974 (2) 27 Sept 1974 28 Sept 1974] 38882/75 Heading C3L [Also in Division C1] Adsorbents used in purifying waste water are prepared by mixing a finely divided substance (i.e. active C or an inorganic compound containing at least one metal selected from Ca, Mg, Zn, Pb, Fe, Al, Ba, Mn, Sn, Sr, Co, Ni, Ti and Cu) with at least 5% by weight of a thermoplastic polymer, optionally with a solvent which dissolves or swells the polymer, heating the mixture in a closed vessel to form a slurry and then extruding the slurry through an orifice into a zone of lower pressure. Polymers specified in Examples are polypropylene, polystyrene, polyethylene, polyethylene terephthalate and polyacrylonitrile.
Patent GB-1168580-A (GB)
Title: Clarification of Liquids
IPC: B01D21/00
Filed: 1968-08-15
Abstract: 1,168,580. Travelling-band filters. FMC CORP. 15 Aug., 1968 [15 Aug., 1967], No. 39029/68. Heading B1D. [Also in Division Cl] An endless moving screen S collects filtered residue in tank 50 and is cleaned ultrasonically (i.e. 15-40 Kc/s) in tank 52. As described, aqueous suspension from a preliminary sewage treating process (see Division C1) enters at 34 and passes radially inwardly through the screen entrained around rotating drum 56. Filtrate flows axially outwards through 96 and over weir (109) adjustable to vary the liquid head (Fig. 6, not shown) to discharge. Solids entrained by the screen are removed by ultrasonic transducer UT see also Figs. 10, 11 (not shown); the heat generated thereby is stated to enhance the settling process in tank 52. Scum 117 is prevented from re-contaminating the screen by baffle 116. The movement of the screen, or the inflow rate at 34, may be controlled by a float L. The periphery of the drum comprises a supporting expanded wire mesh 104; the filter screen S (which may be of woven nylon, vinyl or steel wire) is secured to a rubber ribbon 112 (Fig. 9) carried by chains 72 and sealing against a rubber element 108 on the drum periphery.
Patent GB-1158549-A (GB)
Title: Food Product
IPC: A23L19/18
Filed: 1966-09-01
Abstract: 1,158,549. Puffed food products. CLOVER CLUB FOODS CO. 1 Sept., 1966 [3 Sept., 1965], No. 39102/66. Heading A2B. A method of making a puffed food product comprises forming a slurry comprising 60-90% by weight water, a foodstuff and at least one added starch, the solids in the slurry including at least 20% by weight amylose, cooking the slurry to gelatinise the starch, forming the gelatinised mass into pieces and drying the pieces to a moisture content which causes them to puff and expand on cooking e.g. in hot oil. The slurry may comprise maize starch, whole, cracked or ground wheat and maize grains, ground blanched or raw potatoes, mashed cooked potatoes, dehydrated mashed potatoes and salt. The slurry may be cooked in a scraped surface heat exchanger, or by injecting steam into it. The gelatinised mass may be extruded as a flat sheet or ribbon and cut into pieces, or dropped in blobs on to a moving conveyer to form the pieces.
Patent GB-848415-A (GB)
Title: Time delayed electric switching device
IPC: G04F3/02
Filed: 1956-12-21
Abstract: 848,415. Time switches. WESTERSTRAND-SONER A. B. Dec. 21, 1956 [May 25, 1956], No. 39130/56. Class 38 (5). A time switch, Fig. 1, comprises a control shaft 11 biased into an initial position by a weak spring 15, the movement into this position after the shaft has been displaced by a knob 12 being retarded by a magnetic brake 18 drawn by a gear wheel 17 connected to the shaft through friction plates 16. A two-armed lever 10, 13 in the shaft carries a pin 9 received in a circumferential slot 8 in a disc 4 connected to the movable bridging contact 1, the disc 4 being biased by a strong spring 3 acting in the same direction as the spring 15. To set the switch so that the contact 1 bridges fixed contacts 2, the shaft is rotated against the bias of the springs, the pin 9 engaging an end of the slot 8 to drive the disc. 4 On release of the knob 12 the contact 1 is retained closed by a resilient detent 6 engaging a recess 5 in the disc 4, while the shaft 11 is slowly restored. When the shaft reaches its initial position-which movement is permitted by the angular extent of the slot 8, a projection 14 on the lever releases the detent 6 and the contact 1 is moved by the spring 3 to its initial open position. In another construction, Figs. 2, 3, the spring 3 acts on a rotatable sleeve 20 connected to the disc 4 by a pin 22 on a sleeve arm 21, the arm working within an arcuate recess 23 in a wall 24, the angular extent of the recess corresponding to the angle through which the shaft 11 must be turned to set the switch. The lever 10, 13 is pivotally connected to a pawl 25 having a pin 27 guided in a groove 26 and a finger 28 cooperating with a notch 29 in the disc 4. To set the switch from the initial position shown in Fig. 3 the shaft 11 is turned counterclockwise against the bias of the springs 3, 15, the pin 27 moving in the groove portion 26a and the finger 28 driving the disc 4 until the spring- biased detent 6 is received in the recess 5. On release of the knob 12 the shaft 11 slowly restores, the finger 28 being held clear of the side 31 of the notch 29 by the groove 26a, and eventually the projection, 14 releases the detent 6 permitting return of the disc by the spring 3. Additionally, the shaft 11 may be turned clockwise from the initial position into a number of other switching positions in which the switch is retained by further detent means (not shown), the pin 27 moving into the groove portion 26b whereby the finger 28 enters the notch 29 to drive the disc 4. In there other switching positions the spring 3 is ineffective since the pin 22 is freed from the disc and the switch must be restored into its initial position by hand. In a further modification (Figs. 4, 5, not shown) the lever 10, 13 carries a leaf spring which is deflected by a fixed cam surface upon rotation of the shaft 11 to effect a driving connection with the disc 4. In a shallow form of construction (Fig. 6, not shown) the switch contacts are situated circumferentially around the outer periphery of the disc 4.
Patent GB-1220289-A (GB)
Title: Improvements in or relating to storage tanks
Inventor: TOWNSEND ALEXANDER ARTHUR
IPC: F16J13/02
Filed: 1968-08-16
Abstract: 1,220,289. Door operating mechanism. A.P.V. CO. Ltd. 4 Aug., 1969 [16 Aug., 1968], No. 39286/68. Heading E2M. [Also in Division F2] A storage vessel has a manway access door whose operating mechanism moves the door bodily inside the tank. To vent the tank pneumatic cylinder 10 is extended to rotate hinge arm 11 about pin 8 and thus, via pin 14 and column 13, lift door 1 bodily from seating 15. Door 1 moves to the inside of, and remains parallel to, tank wall 5. The tank is then vented through gap 21 and central circular aperture 22 in plate 19. The door may be cleaned by a suitable solution pumped through connector 29, spindle 23 and spray ball 25, and through connector 34 and adjustable annular nozzle 33. Plate 19 prevents splashing, and maintains door 1 parallel to wall 5. Four bolts 18 integral with plate 19, slide through one of four equi-spaced arms 17 which are integral with column 13. Springs 20 urge plate 19 against flange 2, the stroke of cylinder 10 being insufficient to lift plate 19 from flange 2. To give access to the tank, pin 36 is removed and hinge arm 11 is manually rotated about pin 8 so that the arms 17 lift plate 19 from flange 2, and door 1 and plate 19 are swung together into the tank. Micro-switches 35, which may be replaced by pneumatic controls, detect the position of the door to control the operation of the cleaning system. Cylinder 10 may be hydraulically operated, or may be replaced by an electrical mechanism.
Patent GB-1162701-A (GB)
Title: Improvements in or relating to Screw Threaded Fasteners
Inventor: ALLSOP ROBERT TREVOR
IPC: B21K1/46
Filed: 1966-09-03
Abstract: 1,162,701. Screw driving recesses. G.K.N. SCREWS & FASTENERS Ltd. 3 Sept., 1966, No. 39473/66. Addition to 953,795. Heading F2H. A screw 11 has a driving recess 15 in the end of the shank opposite a head 12, of a form disclosed in Specification 953,795. It is also stated that the side walls 21 of the driving grooves 17 can be parallel, or substantially parallel, to the axis of the bolt, the departure from parallelism being not greater than 2 degrees for the wall in thrust engagement during tightening, and not greater than 3 degrees for the other wall.
Patent GB-1247711-A (GB)
Title: Antibacterial agents and a process for the preparation thereof
IPC: C07D501/32
Filed: 1968-08-19
Abstract: 1,247,711. Cephalosporin derivatives. BRISTOL-MYERS CO. 19 Aug., 1968 [18 Aug., 1967], No. 39617/68. Heading C2A. Novel cephalosporin derivatives having the general formula wherein R is C 1 -C 10  alkyl, and the non-toxic pharmaceutically acceptable salts thereof are prepared by (a) reacting a mixed acid anhydride of formula wherein X is -CCl 3  or O-(C 1 -C 10 ) alkyl, or a functional derivative of the anhydride with from 0À2-1 equivalents of 7 -aminocephalosporanic acid at a temperature below 0 C., in the presence of a mild base to produce a compound of formula and (b) reacting the intermediate with excess 40-60% aqueous formic acid or concentrated trifluoroacetic acid at -10 to 50 C. to yield compounds or salts of Formula (I); and if desired, treating the product with excess acetone at - 20 to 50 C., at apH of 5-9, in the presence of not more than 20% by weight water to produce compounds of Formula (II). Pharmaceutical compositions comprise, as active ingredient, a compound of Formula (I) or (II) or a pharmaceutically acceptable non-toxic salt thereof, and a carrier or diluent. The compounds or compositions may be used to treat animals, other than men, including poultry.
Patent GB-818686-A (GB)
Title: Apparatus for measuring muscular activity and the condition of the muscles
Inventor: SZIRMAI ENDRE
IPC: A61B5/103
Filed: 1956-12-31
Abstract: 818,686. Myotonometers. METRIMPEX MAGYAR MUSZERIPARI KULKERESKEDELMI VALLALAT. Dec. 31, 1956, No. 39658/56. Class 81 (2). A myotonometer comprises a sensing element 1 to be placed in contact with the muscle the tanicity of which is to be measured, the sensing element 1 being movable between rollers 2 against a spring load 9 and transmitting its movement to a crank-like arm and a pointer 7, the resulting rotary movement of which is proportional to the tonicity of the muscle. A sensing rod 1 is slidable in a column 3 in which it is centred by rollers 2. A fork 4 at the upper end of the sensing rod 1, embraces a roller 6, mounted eccentrically to a crank-like arm of a spindle 5. Longitudinal movement of the sensing rod 1 rotates spindle 5 which moves a pointer 7 over a scale 8. Springs 9 are attached to projections 4a at the upper end of the sensing rod 1 and to blocks 13 located in the instrument casing 12 to load the sensing rod 1. Pins 14 arranged transversely in the blocks 13 engage inclined slots 15a in a ring 15 which on rotation raises or lowers the pins 14 and the blocks 13 to adjust the springs 9. In use the sensing rod 1 is held against a muscle which in action displaces it.
Patent GB-1188756-A (GB)
Title: High Speed Interphase Switching Arrangement.
IPC: H02H7/16
Filed: 1968-08-20
Abstract: 1,188,756. Protective arrangements. WESTINGHOUSE ELECTRIC CORP. 20 Aug., 1968 [25 Sept., 1967], No. 39708/68. Headings H2H and H2K. [Also in Division G1] An arrangement for controlling simultaneously a plurality of switching devices 20 in the phases of polyphase lines, comprises currentsensing means 25 associated with each phase a light 34 which is de-energized when the phase current exceeds a predetermined value, and a photo-relay 35 having contacts 36, 37 controlling the operation of the switching device 20. These components are disposed in a high voltage situation, but the light 34 and photo. relay 35 are optically connected by lightconducting rods 58, 57 to a photo-relay 52 and a light 51 disposed at earth potential. This arrangement is provided for each phase with the contacts 53 of all the relays 52 being connected in series with each other and with the lights 51 which are connected in parallel with each other. When the current in any phase exceeds a predetermined level, relays 22, 23 associated with that phase open their contacts 27, 29 to extinguish the light 34. The corresponding relay 52 opens its contacts 53 to extinguish all the lights 51 which in turn causes all the relays 35 to close their contacts 36 to effect the opening of the switching devices 20 which are then held open by latches 39. The opening of the switching devices 20 inserts capacitors 16, 17 in the line to increase the capacitative reactance needed to deal with the increased current in the line, e.g. due to failure of a parallel line. When the current falls, relays 22, 23 reclose to energize the lights 34 causing the relays 35 to close their contacts 37 to energize coils 38 to release the latches 39. Springs 24 reclose the switching devices 20.
Patent GB-981944-A (GB)
Title: A watch
Inventor: SHAPIRO LEON SOLOMONOVICH
IPC: G04B33/10
Filed: 1962-10-19
Abstract: 981,944. Watches. PERVY MOSCOVSKY CHASOVOY ZAVOD IMENI S. M. KIROVA. Oct. 19, 1962, No.39720/62. Heading G3T.  A watch has a central seconds hand whose arbor 10 carries a pinion 9 forming an intermediate link in a chain of wheels linking the barrel 1 with the escapement 12,13, and this pinion meshes with two wheels 7, 8 neither of which overlaps the barrel. As shown, the barrel wheel engages a centre wheel 2 which is free on the arbor 10 and which meshes with an intermediate wheel 3. This intermediate wheel is geared to the seconds hand pinion 9 through a double step-up train compressing a first pinion-and-wheel 4, 5 driving a pinion 6 which is fact with the wheel 7 in mesh with the seconds hand pinion 9. The drive to the escapement 12,13 continues from pinion 9 through the wheel 8 which is coaxial with wheel 7 but which could rotate relative to wheel 7 if both these wheels did not engage the seconds hand pinion. Hand setting wheels, not shown, are connected with an hour train 15,17.
Patent GB-1063446-A (GB)
Title: Improvements in the recovery of metals by the segregation process
IPC: B01D1/26
Filed: 1964-10-01
Abstract: In the segregation process, the metal bearing material is fluidized under such conditions that the material is heated, the heated material is withdrawn from the fluidized mass and moved as a continuous plug sealed from the atmosphere whilst the segregation reaction proceeds, the reagents necessary for the reaction being added to the plug at the beginning of its movement. The reagents may be a carbonaceous reducing agent and a halogen or halogen compound Copper ore and pulverized coal is fed to fluidized bed reactor space 8 through inlet 9 and inlet 10 to level 7. The fluidized bed is brought to the required temperature and thereafter ore and coal are added continuously.  Heated ore overflows into and accumulates in the standpipe 6 which is provided with a discharge control mechanism 12 regulating the flow of material from 6.  Exhaust gases from the reactor pass through one or more cyclones provided outside or inside the reactor space, and entrained material is discharged into the top of standpipe 6. Sodium chloride and more coal are also fed to the top of 6 through 11.  A packed bed or plug is thus formed in 6 which moves down gradually as mechanism 12 is operated continuously or intermittently and to which reagents have been added.  The material discharged from 6 is cooled without undue oxidation, subjected to a light regrind and a flotation step to recover the copper.ALSO:In the segregation process, the metal bearing material is fluidized under such conditions that the material is heated, the heated material is withdrawn from the fluidized mass and caused to move as a continuous plug sealed from the atmosphere whilst the segregation reaction proceeds, the reagents necessary for the reaction being added to the plug at the beginning of its movement.  The reagents may be a carbonaceous reducing agent and a halogen or halogen compound. Copper ore and pulverized coal is fed to fluidized bed reactor space 8 through inlet 9 and inlet 10 respectively to level 7.  The fluidized bed is brought to the required temperature and thereafter ore and coal are added continuously.  Heated ore overflows into and accumulates in the standpipe 6 which is provided with a discharge control mechanism 12 regulating the flow of material from 6.  Exhaust gases from the reactor pass through one or more cyclones provided outside or inside the reactor space, and entrained material is discharged into the top of standpipe 6.  Sodium chloride and more coal are also fed to the top of 6 through 11.  A packed bed or plug is thus formed in 6 which moves down gradually as mechanism 12 is operated continuously or intermittently and to which reagents have been added.  The material discharged from 6 is cooled without undue oxidation, subjected to a light regrind and a flotation step to recover the copper.