baber/WOPTO huggingface dataset:
Patent GB-692865-A (GB)
Title: Improvements in or relating to method of preparing molded plastic printing plates
IPC: B41C3/06
Filed: 1950-02-24
Abstract: 692,865. Printing-surfaces. NEWS SYNDICATE CO., Inc. Feb. 24, 1950 [Feb. 25, 1949], No. 4806/50. Class 100(ii) A method of preparing a moulded plastic printing plate comprises heating the face of a flat sheet of thermoplastic material to moulding temperature, placing the heated face of the sheet against the face of a matrix, enclosing the sheet and matrix in a sealed chamber between cooled platens of a moulding press, evacuating air from the chamber, and subjecting the sheet and matrix to pressure between the platens to mould the sheet. A thermoplastic sheet of a resinous material such as vinyl chloride copolymer resin is preheated, by conveying it through an oven to 100‹-200‹F. and is then raised to the moulding temperature of 250‹-300‹F. by passing beneath a battery of infra-red lamps. A matrix such as that described in Specification 681,021, is placed face down on the heated face of the sheet, and the assembly is placed between the platens 9, 10, Fig. 1, of a quick-acting hydraulic moulding press, the platens being maintained at about 50‹F. by brine or other cooling medium supplied through pipes 11, 12. The press is then closed, the extent to which the matrix and sheet are forced together being controlled by stops 15. The platen 9 also has a sealing gasket 14 which encloses the matrix and sheet in an air-tight chamber when the platens are closed. The chamber is evacuated by opening a valve in a pipe 16 leading to a vacuum pump. Moulding pressure of about 3,000 1bs./sq. inch is applied for about 15 seconds. A lower pressure of about 500 1bs./sq. inch may be used for a longer'period, in which case the platens are maintained at a higher temperature to decrease the rate of hardening. When it is required to curve the finished plate for use on a rotary press, it is passed beneath a battery of infra-red lamps directed on to the back of the plate to raise its temperature to 160‹-250‹F. while the front of the plate is chilled by jets of cool air to prevent the loss of the impression made by the matrix. The now flexible plate is conveyed to a bending roll 21, Fig. 2. of a curvature matching that of the printing cylinder with which the plate is to be used. The leading edge is seized by a gripper 22. As the roll revolves a roller 24 directs the back of the plate against the roll. To make the plate conform exactly with the surface of the roll 21, fluid pressure is applied to the face of the plate. A reciprocating box 25 having a recess 26 is moved against the plate with the edges of the box against the blank margin of the plate, the recess 16 then forming a chamber which is supplied with compressed air through a pipe 27. The roll 21 is maintained at about 100‹F. by means of a heating medium supplied through a conduit 29 to the interior of the roll. Specification 692,918 is referred to.
Patent GB-562533-A (GB)
Title: Improvements in or relating to variable inductance coils
IPC: H01F21/02
Filed: 1943-03-25
Abstract: 562,533. Inductances. COLE, Ltd., E. K., and KNIPE, A. R. March 25, 1943, No. 4830. [Class 38 (ii)) In an inductance coil assembly for use in radio circuits, each coil is carried on a former a supported by the insulating panel c and its inductance is varied by rotating a screw e which moves in a threaded recess in the panel and operates a metallic plate g up or down. For this purpose a projection on the plate engages a groove f on the screw.
Patent GB-722539-A (GB)
Title: Optical reflectors
Inventor: LEE HORACE WILLIAM
IPC: G02B5/10
Filed: 1952-02-25
Abstract: 722,539. Optical helicopters. ALDIS BROS., Ltd. Feb. 19, 1953 [Feb. 25, 1952], No. 4858/62. Class 97 (1). [Also in Group XXIII] A reflector of transparent material has a rear concave spherical surface coated so as to be reflecting and a front concave refractory surface made aspherical and having an equation y<SP>2</SP>=l<SP>2</SP>+mx-x<SP>2</SP>+2l#mx-x<SP>2</SP>(n, and formed by the rotation of an annular grinding tool d, Fig. 3, rotating about an axis inclined at an angle A to the axis of rotation of the hook-piece b and displaced therefrom by a distance l, m being twice the radius of the sphere generated by the tool when l=0 and n being equal to sin<SP>2</SP>A. The reflector, as shown in Fig. 1, may be thinner in an intermediate zone than at the periphery or centre and the latter may be apertured, and may be used in signalling or for projection of the image on acathode-ray tube. Specification 550,643 is referred to.
Patent GB-1482413-A (GB)
Title: Detection of movement
IPC: G01S13/56
Filed: 1974-07-11
Abstract: 1482413 Intruder alarms PEAK TECHNOLOGIES Ltd 11 July 1974 [13 July 1973] 04878/77 Divided out of 1482412 Heading G4N [Also in Division H4] A Gunn effect oscillator diode 2 mounted in a first waveguide horn aerial 1 acts as the transmitter, some of the energy therefrom being coupled to a reception horn 11 (Fig. 1) by coupling probe 4 wherein is situated receiver mixed diodes D1 and D2, the signals from which are processed as described in the parent Specification. Alternatively (Fig. 2), each mixer diode D1, D2 may be situated in a separate reception horn 11, 21, coupled to the TX horn 1 by respective coupling means 14, 24.
Patent GB-161043-A (GB)
Title: Improvements in air-tight bungs
IPC: B65D39/08
Filed: 1920-02-18
Abstract: 161,043. Cruzille, F., Cruzille, P., and Pavero, P. Feb. 18, 1920. Addition to 139,185. Bungs.-An airtight bung for a barrel, cask, &c. comprises a fitting a which engages in the mouth of the bung-hole, and has secured to it a rubber block c adapted to be expanded laterally by turning a screw e engaging a dished member d<2>. The upper part of the rubber block c engages another dished member g, which is prevented from rotating by means of projections engaging holes in the part a. The member d<2> is arranged so that it can move vertically but cannot rotate. A cap f arranged over the end of the screw e prevents access of liquid to the interior of the bung.
Patent GB-128538-A (GB)
Title: Improvements in or relating to Sockets for Electric Lamps.
Inventor: WEGMANN JACQUES
IPC: H01R33/22
Filed: 1919-02-27
Abstract: 128,538. Wegmann, J. June 18, 1918, [Convention date]. Holders. - A holder for screw-capped lamps comprises an internally-threaded insulating body a, having symmetrically arranged openings to receive shouldered tubular terminals b<1>, c<1> ; contacts g, i, secured to the terminals by screws f, h, maintain the terminals in position. The peripheral contact g may consist of a wire or strip. In a modification, the body carrying the terminals and contacts is separate from the socket, and may be of a more highly insulating substance: the two parts are connected by a pin, which may also secure the dome.
Patent GB-827172-A (GB)
Title: Improvements in or relating to cocoa-butter substitutes
Inventor: BEST RONALD LOBLEY
IPC: A23D9/00
Filed: 1955-02-19
Abstract: A cocoa-butter substitute consists of a palm oil fraction having an iodine value of not above 45, a dilatation at 20 DEG  C. (isothermal melting expansion in cubic mm., measured as described) of not less than 1000 and a softening point between 30 DEG  and 45 DEG  C. Preferably, the iodine value is within the range 30 to 40 and the dilatation at 20 DEG  C. is not less than 1500, at 25 DEG  C. not less than 1000, at 30 DEG  C. not less than 300 and at 35 DEG  C. not greater than 600.  The fraction preferably contains less than 3% of fully saturated glycerides.  The fraction may be mixed with a Borneo tallow, e.g. Illipe butter, the latter forming at least 20%, but preferably not above 75%, of the mixture.  Examples are concerned with preparing the palm oil fraction by fractional crystallization from dry acetone or ether.ALSO:The cocoa-butter of confectionery products, especially chocolate, in which cocoa-butter is ordinarily incorporated is replaced, at least in part, by a palm oil fraction having an iodine value of not above 45, a dilatation at 20 DEG C. (isothermal melting expansion in cubic mm., measured as described) of not less than 1000, and a softening point (measured as described) between 30 and 45 DEG C.  Preferably, the iodine value is within the range 30 to 40 and the dilatation at 20 DEG  is not less than 1500, at 25 DEG  not less than 1000, at 30 DEG  not less than 300 and at 35 DEG  not greater than 600.  The fraction preferably contains less than 3% of fully saturated glycerides.  The fraction may be mixed with a Borneo tallow, e.g. Illipe butter, the latter forming at least 20%, but preferably not above 75%, of the mixture.  Examples are concerned with preparing the palm oil fraction by fractional crystallization from dry acetone or ether.ALSO:The cocoa-butter of confectionery products, especially chocolate, in which cocoa-butter is ordinarily incorporated is replaced, at least in part, by a palm oil fraction having an iodine value of not above 45, a dilatation at 20 DEG  C. (isothermal melting expansion in cubic mm., measured as described) of not less than 1000, and a softening-point (measured as described) of between 30 DEG  and 45 DEG  C.  Preferably, the iodine value is within the range 30 to 40 and the dilatation at 20 DEG  C. is not less than 1500, at 25 DEG  C. not less than 1000, at 30 DEG C. not less than 300 and at 35 DEG  C. not greater than 600.  The fraction preferably contains less than 3% of fully saturated glycerides.  The fraction may be mixed with a Borneo tallow, e.g. Illipe butter, the latter forming at least 20%, but preferably not above 75%, of the mixture. Examples are concerned with preparing the palm oil fraction by fractional crystallization from dry acetone or ether.  Other examples are of milk chocolate and plain chocolate mixes.
Patent GB-968293-A (GB)
Title: Printed circuit connector
IPC: H01R12/72
Filed: 1962-02-09
Abstract: 968,293. Two-part couplings. BURNDY CORPORATION. Feb. 9, 1962 [Feb. 17, 1961], No. 5040/62. Heading H2E. A socket connector for a printed circuit panel consists of Z-shaped contacts, such as 6 and 7, mounted in an insulating body 1, the arms of the contacts each having a longitudinal slot 6a and a central bend 13 to provide four contact surfaces 12a, 12b, 12c, 12d. As shown, the end of the arm 10 of each contact is reversely bent and formed with two cylindrical sockets 18, 19. The contacts are mounted in body 1 in pairs on opposite sides of a, longitudinal groove 46, and held in position by cap 3. Groove 46 receives the printed circuit board 40. Wires attached to plugs with a peripheral groove are connected to the sockets, dimples 22 holding the plugs in place. A circuit board 43 with bulges 44, 45, which clip into the mediate bends 13 of the contacts, may be used. A key 50 may be inserted into the connector to polarize the socket connector. Modifications are described in which each plug is held in a single socket by (a) a tongue, formed from the end of the socket contact, bearing against a shoulderon the plug, Fig. 3 (not shown), and (b) a pair of tongues formed as part of the plug and bearing against a shoulder formed at the rear end of the body cavity, Fig. 4 (not shown). In a further modification, the plug is replaced by a socket, which mates with the end of the contact strip, and has a single tongue engaging a shoulder in the body, Fig. 5 (not shown).
Patent GB-472253-A (GB)
Title: Improvements in machines for seaming lids on cans
IPC: B21D51/32
Filed: 1936-02-20
Abstract: 472,253. Seaming. ASHWORTH & PARKER, Ltd., CHORLTON, F. O. L., and MAYSON, H. Feb. 20, 1936, No. 5097. [Class 83 (iv)] A machine for seaming lids on cans in vacuo or in an inert gas, wherein the can is rotated within a chamber relative to the seaming mechanism, has a single manually operable lever which actuates the sealing door for the chamber, the fluid control valve, and the means for positioning the containers for rotation relatively to the seaming means, the sequence of operations being automatically determined by interlocking means. A can is delivered from a table 59 on to a chuck 14, which is rotated by an electric motor 17 by a belt 21 passing over adjustable pulleys 23, 24. The chuck 14 is raised to cause the can end to bear against an upper disc 15, where it is seamed by rollers 16 brought in turn into contact therewith by a hand or foot operated lever 60. The operating mechanism comprises a lever 32 secured by a pin 34 to a rock-shaft 33 and engaging a lever 37 through a gate connection 51. Initial movement of the lever 32 while abutting a shoulder 54 in the gate aperture causes the lever 37 to close the door 13 of the chamber 12 through links 50. A lever 38 which is keyed to the shaft 33 is also actuated to effect a partial elevation of the chuck 14 through a rod 39, rocking lever 40, a resilient connection 43, and a further spring 49, this movement also causing partial approach of a clutch element 20 for driving the chuck 14 to a driven element 19. The lever 32 is then moved laterally about its pin 34 clear of the abutment 54, in which movement it strikes a lever 56 which operates a sliding valve 28 in a housing 55 which exhausts the chamber 12 or supplies inert gas thereto. Further movement of the lever 32 in the slot 52 causes the can to be raised to contact the upper disc 15, and the clutch 19, 20 to be fully engaged to 'rotate the can. In a modification, the upper chuck 15 is rotated. The gate 51 may be provided on the lever 32, the lever 37 then engaging the aperture. The clutch may be omitted, and one of the chucks rotated continuously. A pump 26 is driven from the motor 17 and communicates by a duct 27 with the column 11 which acts as a suction reservoir.
Patent GB-990645-A (GB)
Title: Multivibrator circuit
IPC: H03K3/284
Filed: 1962-02-09
Abstract: 990,645. Transistor two-state circuits. J. W. BARRETT. (Northern Electric Co. Ltd.). Feb. 9, 1962, No. 5109/62. Heading H3T. A two-state circuit comprises a pair of crosscoupled transistors Q1, Q2, a timing circuit comprising resistance and a capacitor C1 connected in one of the cross-coupling paths for controlling the conduction time of the second transistor, and a diode D3 arranged to provide a low impedance path for changing the charge state of capacitor C1. In the stable state of a monostable circuit, transistor Q1 is conducting, due to the bias applied to its base from the potential divider R6, R2, R1 across the supply, and diodes D2, D3 are conducting holding transistor Q2 cut-off. Application of a positive input pulse to the base of transistor Q1 cuts it off, and the fall at its collector cuts-off diodes D2, D3 allowing transistor Q2 to conduct. Capacitor C1 now charges until diode D2 again conducts when the circuit returns to its stable state. The capacitor C1 then discharges through resistors R3, R5, diode D1 isolating transistor Q1 from the discharge path. Diode D1 and resistor R7 may be omitted, Fig. 1 (not shown). As both the charging and discharging paths of the capacitor are isolated from the conductive transistor by a diode (either diode D2 or diode D1) temperature effects on the charge and discharge are reduced. Specification 990,646 is referred to.
Patent GB-179339-A (GB)
Title: Improved construction of apparatus for signalling on motor road vehicles
IPC: B60Q1/34
Filed: 1921-02-14
Abstract: 179,339. Stuart, V. Feb. 14, 1921. Road-traffic signals on vehicles.-A stopping signal comprises a lamp adapted to shine through a red glass 13 and to illuminate the number plate through a window 5, and a plate 9 perforated with the desired signal and adapted to be moved in front of the red glass 13 when the brake is applied through a rack-andpinion arrangement. A bell is sounded when the brake is applied.
Patent GB-1078473-A (GB)
Title: Improvements in or relating to the drying and impregnating of insulated cables
IPC: H01B13/30
Filed: 1965-02-05
Abstract: 1,078,473. Electric cables. LEYBOLDHOCHVANKUUM - ANLAGEN G.m.b.H. Feb. 5, 1965 [July 10, 1964], No. 5209/65. Heading H1A. [Also in Division D1] A stack of cable in a container is dried and impregnated with an insulating liquid by placing in a pressure-tight tank, heating the cable under reduced pressure, passing dry impregnant upwards through the cable while still under reduced pressure and recycling after removal of moisture extracted from the cable, and finally passing dry impregnant upwards through the cable under increased pressure and recycling after cooling. Recycling of the impregnant under reduced pressure is continued until substantially no further moisture is extracted from the cable. According to the drawings, an annular tank 1 contains two superimposed annular cable containers 3 and 4, each having a false bottom 12. During the vacuum impregnation stage, dry impregnant is supplied to the base of each container from a retractable connecting pipe (23), via the inlet (18) of an overflow chamber (14) and, after filling the container, overflows the container lip to the bottom of the tank where it is withdrawn and recycled. During the pressure impregnation stage, the tank is allowed to fill with impregnant before recycling. After impregnation, the connecting pipe (23) is retracted and excess impregnant pumped out of the tank.
Patent GB-1101842-A (GB)
Title: Active carbon
Inventor: HOUGHTON FRANCIS RICHARD
IPC: C01B31/08
Filed: 1966-02-08
Abstract: Active carbon is produced by activating elemental carbon obtained as by-product in the manufacture of unsaturated hydrocarbons, particularly acetylene, by processes employing the cracking, partial combustion or other form of conversion of suitable hydrocarbons. The crude carbon is first compacted into particles of suitable size and carbonized by heating in a suitable furnace or oven to 800-1000 DEG C. at a rate of not greater than 3 DEG  C. per minute, preferably from 1-3 DEG  C. per minute. It is then activated by treating it with superheated steam (or other activating gases) at a temperature of 800-1000 DEG  C., the amount of steam employed and the duration of the treatment being preferably such that 50-70% of the carbon is removed, the remaining 30-50% of the carbon thus being activated.
Patent GB-397843-A (GB)
Title: Improvements relating to the supply of feed water to boilers
IPC: H02K23/00
Filed: 1932-02-25
Abstract: 397,843. Actuating pumps. WEIR, Ltd., G, & J, and HILLIER, H., Holm Foundry, Cathcart, Glasgow. Feb. 25, 1932, No. 5602. [Class 102 (i).] Displacement pumps are driven by constant current variable voltage motors, the torque speed of which is devised so that it controls and determines the pressure capacity characteristic of the pump. As applied to the feed system of a steam generator in which a battery of plunger pumps 2 is operated by constant current, variable motors 5 driven from a motor 7 which feeds a generator 8. Feedwater is supplied to the boiler 13 over the feed-water heater 16 and the feed-regulator valve 15. The frictional resistances between the pump and the boiler increase as the square of the quantity of water flowing into the boiler and is represented by the curve C-D, Fig. 2, and the torque speed of the motor is designed to rise similarly. With a closure of the feed regulating valve, the resistance to water flow is increased and falls until equilibrium is established between motor torque and resistance to feed flow. Where reciprocating and centrifugal pumps are operated in parallel the torque speed has a falling characteristic and in the case of displacement oil fuel pumps where the discharge pressure is maintained constant the torque speed characteristic is similar. A motor suitable for the duty is that described in Specification 347,359, [Group XXXV].
Patent GB-1415479-A (GB)
Title: Mobile container for textile yarn packages
IPC: B65H49/38
Filed: 1974-02-07
Abstract: 1415479 Endless chain bucket conveyers W REINERS VERWALTUNGS GmbH 7 Feb 1974 [10 Feb 1973] 05606/74 Heading B8A [Also in Divisions D1-D2] A mobile container for the reception, storage and transportation between production and process stages, of yarn packages comprises in its interior an elevator circulating on an endless loop path whereby packages may be transferred to and from a loading and unloading position within the container. As shown in Fig. 1, a container 1 supported on pivotable and/or rigid rollers 9 and 10 houses an elevator comprising troughs or package carrier grids of basket form 22 articulatedly suspended between endless carrier chains 21 and 21<SP>1</SP> which run around pairs of aligned chain wheels 16, 16<SP>1</SP>, 17, 17<SP>1</SP>, 18, 18<SP>1</SP>, 19, 191 and 20, 20<SP>1</SP>, on opposite sides of the container. Stabilizing chains 23, 23<SP>1</SP>, formed by interconnecting links 24 with joint pins 25 and 26, each bear laterally against guide rails 27, 27<SP>1</SP>, or 28, 28<SP>1</SP>. Discs 29 (secured to the troughs formed by rods 34, 34<SP>1</SP>, 34<SP>11</SP>) are eccentrically suspended on pins 26 which also connect with chains 21 and 21<SP>1</SP> and suspend carrier straps 30 of the troughs, Figs. 3 and 4. In a loading operation, Fig. 5, the container cooperates with a device 33 whereby packages 37 delivered, e.g. manually, continuously or at irregular intervals at the beginning of the upper run of an endless belt 36 are transported by engaging members 38 to container 1: each time a package arrives at the position 38, a switch 39 is operated and belt 36 is stepped further by one interval 41 by a motor 40: if conveyer belt is filled so that a package 37 has arrived at position of member 38<SP>11</SP>, a switch 42 starts up motor 43 which, through crank 74, crank rod 75, lever 76, rod 77, lever 78 and rod 79, operates tilting levers 43, 45 and 46 so that members 38 facing the container 1 are tilted and their packages 37 fall into a trough 22, whereafter motor 47 moves the elevator one trough interval. As shown in Fig. 6, container is coupled to device 33 by pawls 48 engaging in bolts 49, whereupon a switch (not shown) interconnected with a registering stop 52 actuates the elevator drive, effected from motor 47 through wheel 58, chain 59, chain wheel 60 and toothed wheel 61 now in operative engagement with chain driving wheel 53 in the container, until a trough 22 actuates switch 50 at its correct level for loading. An unloading device, Figs. 7 and 8 (not shown) operates similarly but with reversed transfer of packages and each trough in turn stops at the unloading position, is tilted, by motor operated mechanism comprising a draw rod, cam lever, bell crank and response lever and a sliding gripper rod, so that the packages therein fall into an engaging member 38.
Patent GB-667633-A (GB)
Title: Improvements in and relating to frames for motor road vehicles
IPC: B62D35/00
Filed: 1950-03-06
Abstract: 667,633. Road-vehicle bodies. TARUFFI, P. March 6, 1950 [March 5, 1949], No. 5621/50. Class 108(i). The body of a road vehicle comprises twin nacelles having central sections 1 supported on lateral sub-frames 2 which are rigidly connected in spaced relationship by the members 3. The front and rear ends of the sub-frames support the road wheel suspension means which may be torsion bars 8, 8'. The wheels are covered by fairings 10, 11 which are preferably readily removable. The engine 4 may constitute a sub-frame. In Fig. 5 the sub-frames comprise two upwardly facing shells 12 which may also have internal bracing. Specification 660,528 is referred to.