baber/WOPTO huggingface dataset:
Patent GB-845903-A (GB)
Title: Improvements relating to the polymerization of olefins
IPC: C08F10/00
Filed: 1957-03-12
Abstract: Straight chain and/or branched chain olefins wherein carbon atoms attached to at least three other carbon atoms is separated from unsaturated carbon atoms by at least two saturated carbon atoms are polymerised using a reaction mixture prepared by admixing an alkali metal, aluminium cyanide and a polymerisation initiator comprising a metal halide of a Group IVA, VA, VIA or VIII or rare earth metal, a metal carbonyl, or a metal beta-ketone chlorate, and liquid hydrocarbon, the mixture containing not more than 3 moles of the alkali metal per mole of polymerisation initiator and from 0,1 to 10 moles of aluminium cyanide per mole of polymerisation initiator. Specified olefins are ethylene and propylene, while sodium (preferred), potassium, rubidium, caesium, sodium-potassium mixtures and their amalgams are specified alkali metals.  Specified polymerisation initiators are cobalt and nickel tetracarbonyl, ironpentacarbonyl, titanium tri or tetrachloride, zirconium or uranium tetrachloride, chromium di or trichloride, vanadium pentachloride, tungsten hexachloride, chromium, thorium, vanadium, and zirconium acetylacetonates and the corresponding chelates of 1,3-hexanedione and 3,5-nonanedione.ALSO:Olefines are polymerized using a mixture of an alkali metal, aluminium cyanide and a polymerization initiator comprising a halide of a metal of Group IVA, VA, VIA or VIII, or a metal carbonyl, or a metal beta-ketone chelate, the mixture containing not more than 3 mols of the alkali metal per mole of initiator and from 0.1 to 10 mols of aluminium cyanide per mol of initiator. Sodium (preferred) potassium, rubidium, mesium, sodiumpotassium and their amalgams are specified alkali metals, while cobalt and nickel tetracarbonyl, iron pentacarbonyl, titanium tri-and tetra-chloride, zirconium and uranium tetrachlorides, chromium di- and tri-chloride, vanadium pentachloride, tungsten hexachloride, chromium, thorium, vanadium and zirconium acetylacetonates and the corresponding chelates of 1,3-hexanodrone and 3,5-nonanedrone are specified initiators.
Patent GB-453580-A (GB)
Title: Method of and apparatus for compressing carbon dioxide snow into blocks
IPC: C01B32/55
Filed: 1935-03-15
Abstract: 453,580. Solidified carbon dioxide. MASCHINENFABRIK ESSLINGEN, 85, Postschliessfach, Esslingen-on-Neckar, Germany. March 15, 1935, No. 8126. Convention date, March 23, 1934. [Class 8 (ii)] [See also Group V] Carbon dioxide snow is delivered from a snow-producing cylinder to the stern 4 of a T-shaped press which is movable, e.g. mounted on a carriage, to bring it below the cylinder. A piston forces the snow into the head of the press and retains it under lateral pressure, while it is subjected to the final pressure by a piston 17 against the resistance of the fixed or oppositely-moving piston 12. Moulds may be provided to give the desired shape to the ice blocks formed. The pistons may be operated by fluid pressure.
Patent GB-723667-A (GB)
Title: Improvements in or relating to the fluid pressure control of tool carriage movementsin machine tools
IPC: B23Q5/26
Filed: 1952-03-31
Abstract: 723,667. Lathes. SALOME, V., and SALOME, C. March 31, 1952 [March 29,1951], No.8162/52. Class 83 (3). A machine tool comprises separate positive driving means for moving a main slide 1 and an auxiliary slide 2 mounted thereon in perpendicular directions, the movement of each slide being opposed by fluid-pressure applied to one side of a piston-and-cylinder device mounted between each slide and its support. The slide 1 is mounted on a saddle T which is locked in position when it is desired to carry out a screwcutting operation with a tool on the cross-slide 2. The slide 1 is fed by a cam and follower 8, 10, the movement being opposed by the piston and cylinder 14, 20. When cutting conical threads, the slide 2 is moved by an adjust - able linear cam 34 against the opposing force of fluid-pressure in the cylinder 30. The slide is fed inwardly between traverses by a slide-bar 36,
Patent GB-933357-A (GB)
Title: A sheet printing or duplicating machine
IPC: B41F21/05
Filed: 1961-03-07
Abstract: 933,357. Feeding sheets. E. GERICKE. March 7, 1961 [March 7, 1960], No. 8228/61. Class 100 (1). In a rotary sheet-printing machine wherein each sheet is fed to the grippers of the impression cylinder, but is previously registered by front lays which are swung away by a cam-operated lever, which determines the position of the lays, the cam-operated lever is manually adjustable so that the timing of the swinging of the lays can be altered to suit the speed of the machine. The front lays 7 are carried by a shaft, rotatably mounted in the machine frame above the impression cylinder 5 (not shown), which has secured thereon a lever provided with a crank-pin 22 engaging a slot in a lever 11. The lever 11 is rotatably mounted on a eccentric bush 10 carrying a roller 12, and urged by a spring into engagement with a rotating cam 13, whereby the cam rocks the lays. A lever 9 is secured to the eccentric bush 10 and carries at its free end a pin 14 engaging a slot 16 in the machine frame; the pin 14 is screw-threaded and can be locked in a selected position by a nut 17. Thus, when the free end of the lever 9 is moved along the slot from position A to position B, the bush 10 moves the stub shaft from A<SP>1</SP> to B<SP>1</SP> and the axis of the roller 12 moves nearer the operative part of the cam 13 so that the lays 7 are tripped sooner.
Patent GB-1062231-A (GB)
Title: Electrolytic finishing of aluminium and alloys thereof
Inventor: SHIBASAKI YASUICHI
IPC: C25F3/04
Filed: 1964-02-28
Abstract: In a method of finishing the surface of aluminium or an alloy thereof in which said aluminium forms the anode in an electrolytic bath containing from 30 to 80% by weight of sulphuric acid or of a mixture of sulphuric and phosphoric acids in which the phosphoric acid represents less than 30% by weight of the bath, and also containing a substance having the property of adhering to the surface of the aluminium during electrolysis, the concentrations of the adhering substance and the acid are correlated together and the electrolyte maintained at 30-90 DEG C. without agitation so as to produce localized non-uniform etching of the surface.  The adhering substance may be gluconic acid or a salt thereof; a natural or synthetic high molecular weight substance such as glue or agar; a carbohydrate such as starch, cellulose, glucose, fructose, sucrose or maltose; a higher (C8+) fatty acid or derivative thereof; saccharin; a polyhydric alcohol such as glycols or glycerine; tannic acid, polyethylene, stearates, benzoates.  The bath voltage may be 5-25 volts.
Patent GB-670922-A (GB)
Title: Improvements in or relating to windscreen wiper blades
IPC: B60S1/38
Filed: 1949-03-28
Abstract: 670,922. Windscreen cleaners. O'SHEI, W. E. June 28, 1950 [March 28, 1949], No. 8424/49. Class 138 (i). A flexible windscreen wiper blade, particularly for a curved windscreen, comprises one or more flexors having teeth spread along the flexor, and a squeegee element comprising a plurality of separate plies of strip rubber, the flexor or flexors being secured to the plies with the teeth penetrating through perforations of the plies. A' stepped multi-ply wiper blade 2 of rubber or other material of similar mechanical characteristics is provided with a plurality of spaced slots 7 passing through all of the plies adjacent the rear edge of the blade. Two flexible metal strips 1, herein called flexors, each provided with rectangular shaped teeth 5 along one edge are engaged on each side of the blade by inserting the teeth 5 in the slots 7. Since the notches 6 between the teeth 5 are wider than the teeth the teeth of a flexor engage in alternate slots in the blade. When assembled the flexors 1 lie substantially in the same plane and are held together by clip-shaped ends 4a of a yoke member or members 4 connected to a wiper arm in known manner. The clips may be separate from and connected to the yoke or yokes. In a modification only a single flexor need be used which lies along the back of the wiper. This flexor may be provided with rectangular teeth along one or both edges the teeth being bent to pass into or through the slots in the blade. The teeth may pass completely through the slots and then extend upwardly towards the opposite edge of the flexor. With these. constructions the flexors or flexor.prevent substantial transverse flexing of the blade whilst permitting flexing thereof normal to the windscreen so that the blade will conform to the windscreen curvature.
Patent GB-774879-A (GB)
Title: Improvements in or relating to sheet separating machines
IPC: B65H9/12
Filed: 1954-03-24
Abstract: 774,879. Feeding sheets. BACKHOUSE, H. T. March 23, 1955 [March 24, 1954], No. 8515/55. Divided out of 774,874. Class 100(1) In apparatus for separating sheets from the top of a pile and forwarding them over the pile by grippers, the forwarding grippers have imparted thereto a sideways movement while they are gripping a sheet, whereby the rear portion of the sheet is given a bodily sideways movement. The forwarding grippers may also separate, or assist the separation of, the rear portion of the sheet from the pile. As shown, forwarding grippers 2 are carried by arms 3 secured to a shaft 4 which is oscillated to feed forward the top sheet 5 which has previously been separated from a pile 1 by separating mechanism comprising two lifting suckers and a nozzle which directs an air blast under the raised sheet. As the shaft 4 oscillates, it is also axially reciprocated, since an arm 6 thereon has a ball at its lower end engaging in a guideway 9 in a block 10 which can be rotated to incline the guideway. The block 10 has a shank 11, pivoted in a frame 12, to which is secured an arm 13 pivoted to a link 14 which is adjustable by means of a screw 16. A pointer 19 is also adapted to be moved over a scale by the screw 16. The grippers 2 present the leading edges of the sheet to a tape conveyer moving at about twice the speed as the grippers, which conveys the sheets in overlapping relationship to a layboard. Thus the tail of the previous sheet grasped by the conveyer pulls forward the sheet held by the grippers 2, and this facilitates the sideways movement of the sheet held by the grippers. A suction gripper as described in Specification 774,875 may take hold of the front portion of each sheet released by the grippers 2 and feed it towards a conveyer, and this gripper may also be given a sideways movement. Specifications 427,041, 741,226 also are referred to.
Patent GB-960524-A (GB)
Title: Method and apparatus for refrigerating combustion air for internal combustion engines
IPC: F01N3/04
Filed: 1962-03-06
Abstract: 960,524. Refrigeration. COOPER-BESSEMER CORPORATION S.A. March 6, 1962 [Aug. 22, 1961], No. 8548/62. Heading F4H. [Also in Division F1] The combustion air for an I.C. engine is compressed, given a moisture content sufficient to saturate it at a predetermined temperature above 32 F., expanded in an expansion engine to cool it below the saturation temperature to produce a fog of minute water droplets, and passed to the I.C. engine for combustion with a fuel and with the fog borne by the air. As shown, exhaust gases from an I.C. engine 10 rotate the turbine 14 of a turbocharger 13 to drive the compressor 17 thereof, which compresses atmospheric air and discharges it to an aftercooler 20, e.g. of the water tube type connected to a cooling tower 21. The air then passes through a second cooler 26, cooled by a refrigerating system including a compressor 30 and a condenser 27, and is further cooled by expansion through a turbine 33 which drives the refrigerant compressor 30. Water vapour in the exhaust gases is condensed on a water-cooled coil 37 in a silencer 36, and the condensate is passed through a valve 40 to a waste heat boiler 41 also in the silencer. Steam from this boiler is injected into a pipe 19 connecting the turbocharger 13 to the after-cooler 20, the desired humidity being maintained by a control device 43. As the air is cooled the water vapour condenses to form a fog which is carried into the engine cylinders at about 32 F. to provide evaporative cooling therein. The temperature of the air passing through the engine inlet manifold 11 is automatically maintained at or above a preset temperature, sensed by a thermostat 46, by a valve 45 controlling a duct 44 bypassing the expansion turbine 33. A mixture controller 51 operates on a valve 50 to control the air/fuel mixture to the engine, and any demand for more air due to a sudden load, is met by acting through a shunt controller 47 to open the valve 45.
Patent GB-1169995-A (GB)
Title: Device for Automatically Indicating Danger in the use of a Mobile Crane or for stopping a Mobile Crane when the Moment of a Load thereon reaches a predetermined Value
Inventor: WAGNER WOLFGANG
IPC: B66C23/90
Filed: 1967-02-23
Abstract: 1,169,995. Safety devices for preventing overloading of cranes. HEBEZEUGWERKESEBNITZ VEB. 23 Feb., 1967, No. 8631/67. Heading B8B. [Also in Division H1] A safety device for a mobile crane comprises a fluid-operated switch 2 supported on gimbals from the crane chassis and connected in an electrical circuit including warning means and/ or automatic cut-out devices for stopping the crane, the switch being disposed in a housing 1 having a pendulum 8 suspended in a fluid 9 in a container 11, the pendulum and the container having co-operating part-spherical walls and means being provided to raise the container whereby the said walls interengage to prevent movement of the pendulum. The switch 2 has a central contact 3 and two sensing contacts 4, 5, and grids 6 for damping the fluid 7 which is preferably mercury. A second mercury switch 15 is fixed to the crane chassis and is connected in parallel with the switch 2 to a relay or contactor coil associated with the warning means or cut-out devices. The contacts 4, 5 of the switch 2 are alternatively connected in the circuit by a switch 17. In operation the switch 15 senses the ground inclination and the switch 2 with its pendulum braked is used during operation of the crane.
Patent GB-888216-A (GB)
Title: Improvements in and relating to apparatus for dispensing sheets of paper
Inventor: NEWMAN HERBERT GEORGE ALBERT
IPC: G03B17/26
Filed: 1959-03-12
Abstract: 888,216. Feeding sheets. REDWING Ltd. March 11, 1960 [March 12, 1959], No. 8639/59. Class 100(1) [Also in Groups XVII and XX] A box for dispensing sheets of paper, which may be sensitized, comprises a drawer 2 and a shell 1 into which the drawer slides. The drawer 2 has a front wall 4 with a slot 5 through which the paper emerges when a handle 23 is depressed. Handle 23 is connected to the free ends of bell cranks 19 mounted on side walls 22 of the drawer and connected by links 17, 18 to a feed arm 14 carrying a pad 15 of foam rubber or like material frictionally engaging the top sheet of a stack a<SP>1</SP>. The slots in wall 4, through which the bell cranks protrude, may be sealed against light. A mouth which narrows towards the outlet slot 5 is formed by two plates 24, 25 and a flexible flap 26 secured to the lower plate 24 is biased towards the upper edge of the slot to exclude light. Springs 27, Fig. 4, thrust the links 17 towards the rear of the box. When the handle 23 is depressed, the bell cranks rotate and through the links 17, 18 push the feed arm 16 forwards, so that the pad 15 thrusts a sheet through the slot 5, the flap 26 being depressed by the sheet. When the sheet has been withdrawn the springs 27 return the mechanism to its original position. To allow for different sizes of sheet, the drawer has a rear wall 6, secured to the base 3 by a bolt 7, which is adjustably located in a slot 7b, Fig. 4. The sides of the stack are aligned by L-shaped members 8 having pin-and-slot connection with the wall 6 and movable between guides 10 on the wall. Pads 9, which may be foam rubber, secured to the members 8 bear against the sides of the stack a<SP>1</SP>.
Patent GB-273026-A (GB)
Title: Improvements in cylinders and pistons of internal combustion engines
IPC: F16J1/08
Filed: 1926-03-31
Abstract: 273,026. Blackstone, G. M., Carter, F., and Carter, E. March 31, 1926. Pistons.-In an internal-combustion engine, an annular ring c' extends from the piston c and enters a reduced portion a' of the cylinder bore at the end of the stroke, sufficient clearance being left to cause mixture, compressed in the annular space thus formed, to escape in a thin blast along the wall of the combustion chamber and eject oil from the sides of the piston.
Patent GB-526821-A (GB)
Title: Contact making holder for space discharge devices
IPC: H01R33/76
Filed: 1939-03-18
Abstract: 526,821. Thermionic valve holders. PHILCO RADIO & TELEVISION CORPORATION. March 18, 1939, No. 8712. Convention date, April 18, 1938. [Class 38 (i)] The contacts of a valve holder are formed from strips of metal slit at the end and pressed by a punch to open the slit and deflect its edges to form resilient and sharp-edged jaws to engage the valve pins. The strip 3 is bent to pass through a slot 15 in a plate 1 and to lie loosely between the plates 1, 2. The slit 12 extends beyond the bend 3a to increase the resilience of the jaws 13 which are pressed to a cup shape, so that the edges 14 engage the inserted pin. The cupped jaws rest in holes 4 in the plate 1. The shank is bent to S shape to prevent solder or flux running along to the contact end. The contacts do not support the valve, a central boss 9 and socket 8, such as described in Specification 526,820, being provided for that purpose.
Patent GB-852776-A (GB)
Title: Driving means for a liquid fuel injection pump
Inventor: VOLOSSEVICH GEORGE
IPC: F02M39/02
Filed: 1958-03-19
Abstract: 852,776. Positive clutches. C.A.V. Ltd. March 13, 1959 [March 19, 1958], No. 8763/58. Class 80 (2). [Also in Groups XXVI and XXVIII] A clutch for an injection fuel-pump drive comprises concentric members a, b connected to the pump and engine respectively, and normally locked together by a detent f projecting radially inwards from a ring d encircling the clutch, the detent being held in position by balls k loaded by compression springs m and engaging a catch h carried by ring d and located diametrically opposite detent f. The latter is integral with an enlarged portion e of ring d forming a centrifugal mass, and when the speed reaches a predetermined value detent f is moved radially outwards against the force of springs m and balls k engage recesses in the sides of catch h, which is thereby locked and members a, b are uncoupled. The ring d may be re-set by a handlever n carrying a roller p for engaging the periphery of the ring.
Patent GB-180132-A (GB)
Title: Improvements in aircraft landing gear
IPC: B64F1/02
Filed: 1921-03-22
Abstract: 180,132. Payn, H. J. March 22, 1921. Anchoring; landing-places.-Means for engagement with one or more wires stretched over a ship's deck or other landing-surface occupy a forward position on the aircraft before engagement and are separated to fore and aft positions after engagement. Snap-hooks 13, rigidly fixed at both ends of a bar 14, which is parallel to the undercarriage axle 11, have jaws with ends spaced further apart than the pitch of the landing-wires 8. A movable snap-hook has similarly spaced jaws 17, pivoted at 18, and kept apart by a detent 26 which, when displaced by contact with a landing-wire 8, allows the jaws to close on the wire under the action of a spring 30. The opening of the jaws is limited by claws 31 on brackets 32, fixed to the cross-bar 14, both jaws and claws preferably having their faces chamfered where they engage one another. The pivot 18 is suspended from a bell-mouthed tubular runner 20, sliding on a rail or stretched wire 21, so that, when the jaws. 17 have closed, the friction on the wire 8 for the landing-place causes the runner 20 to traverse the wire 21 on the aircraft until it contacts with a spring at the rear end. This friction also has a braking action on the machine. According to the Provisional Specification, (1) the movable snap-hook may be connected to a tensioned flexible means running parallel to the wire 21 and over a pulley or pulleys on the aircraft to a drum or windlass subject to the action of a shockabsorber spring; (2 )the detent 26 may be released. by a lever at the rear of the aircraft which contacts with the ground when the machine has assumed its landing attitude; and (3) the detent 26 may also be released and the movable snaphook traversed to its rear position by means under the direct control of the pilot.
Patent GB-994795-A (GB)
Title: Hydraulic apparatus
Inventor: THOMA OSWALD
IPC: F16H39/08
Filed: 1962-03-07
Abstract: 994,795. Hydrostatic transmissions. DOWTY HYDRAULIC UNITS Ltd. Jan. 29, 1963 [March 7, 1962], No. 8813/62. Heading F2C. The hydrostatic transmission described in Specification 994,794, which has a pump and a motor both of the axial-piston tilting-head type which are mechanically connected by a link so that tilting movement of one head causes movement of the other head, is modified by the provision of a slave link pivotally connected to each head in such a way that substantially no force is transmitted between the heads by the slave link. The pump includes a cylinder block which is rotatably mounted in a pivotally mounted yoke 6, and the motor includes a yoke 9 which is pivotally mounted and within which a cylinder block is rotatably mounted. The yokes 6, 9 are interconnected by links 13, 14 which are hollow to provide passages for the transfer of liquid between the pump and the motor. Link 13 is formed with spigots 19, 21 rotatably mounted in recesses in the yokes and the link 14 is similarly connected except that its spigots 19a, 21a are loose fits in their recesses so that no force can be transmitted between the yokes by way of the link 14 and the movements of the yokes are co-ordinated by the link 13 only. The links are secured to the yokes by means of spindles 20 having nuts 23 bearing against washers 24 which bear on the links. Sealing assemblies 25 are provided between each link and its washer 24 and between the link and the yoke, each sealing assembly 25 comprising an angle section nylon ring 29 which is a sliding fit within an angle section metal ring 28, and two backing rings 31, 32 complete the assembly.
Patent GB-213764-A (GB)
Title: Improvements in and connected with wood-shapers
IPC: B23Q35/10
Filed: 1923-03-28
Abstract: 213,764. Nicolaus, F. W., and Jessen, M. March 28, 1923. No Patent granted (Sealing fee not paid). Cutters.-The anti-friction collar i of a woodmoulding cutter b has an outer interchangeable sleeve l connected to the collar by a feather m and slot in the sleeve.
Patent GB-431802-A (GB)
Title: Improved garden hoe
IPC: A01B1/12
Filed: 1934-03-21
Abstract: 431,802. Hand hoes. HOPLEY, C., 49, Lambton Road, Worsley, Lancashire. March 21, 1934, No. 8819. [Class 6 (ii)] A garden hoe is construc. ted with two or more pointed triangular prongs or teeth A projecting forwardy from a flat plate or base B provided with a socket C to receive a stale or shaft, each tooth being twisted about its longitudinal axis to incline it slightly to the base. An aperture a<1> is stamped or pressed out between the roots of each pair of teeth, so that each tooth has a narrow neck b, which is twisted slightly about its longitudinal axis.