baber/WOPTO huggingface dataset:
Patent GB-1035235-A (GB)
Title: Method and apparatus for blending granular materials
IPC: B01F5/24
Filed: 1963-06-07
Abstract: 1,035,235. Mixing. ACHESON INDUSTRIES Inc. June 7, 1963 [June 7,1962], No. 22890/63. Heading B1C. Apparatus for homogenizing solid particulate materials such as # inch cubes of polythene comprises a tank 14 and manifold 18 connected by conduits 16 whose discharge openings 56 (Fig. 5, not shown) are at substantially the same level, and a valved outlet 64 for withdrawing the materials from the manifold at a controlled rate. The materials, which also enter the manifold from a valved conduit 42, are drawn from the outlet 64 by a variable speed horizontal rotary feeder 74 into a tube 22 from which they are forced along a return conduit 24 by a pressurized air jet from a blower 88. The pneumatic mechanism may be replaced by a bucket elevator or a screw or belt conveyer. The discharge ends of the conduits 16 may extend through the cover 58 of the manifold (Fig. 11, not shown), and their inlet ends may all extend vertically, to different extents, through the lower conical part 26 of the tank (Fig. 7, not shown).
Patent GB-321444-A (GB)
Title: Improved safety brake for use in connection with internal combustion driven vehicles
IPC: F16D59/00
Filed: 1928-08-08
Abstract: 321,444. Wilson, W. G. Aug. 8, 1928. Applied by speed regulators.- A centrifugally applied brake comprises a plate spring c which is mounted on the flvwheel a of an engine by engagement of its ends d, e with a stop g, and which, on the attainment of a predetermined speed, contacts with the casing k. The spring may, when thicker at its centre, be supported out of contact with the fly-wheel by shoulders f, h, h; alternatively it may be of uniform thickness and contact with the fly-wheel surface; it may be arranged at the side of the fly-wheel and be duplicated by a second spring arranged at 180‹ phase. The device is particularly applicable for preventing excessive speed, during overrunning, of a locomotive driven by an internalcombustion 'engine.
Patent GB-929312-A (GB)
Title: Improvements in or relating to electrical switches and wiper assemblies therefor
Inventor: BOOTH GEOFFREY LISTER
IPC: H01H1/36
Filed: 1960-06-30
Abstract: 929,312. Switch contacts. PAINTON & CO. Ltd. June 30, 1961 [June 30, 1960], No. 22980/60. Class 38 (5). In a switch having a wiping contact arranged to bridge the adjacent contacts of two parallel rectilinear or circular rows of contacts, the bridging contact element 4 is of semi-circular section and is so supported as to be self-aligning. As shown, the element 4 is made from a rod of square bore split lengthways, is supported in a cup-shaped recess 13, 14 and is urged into bridging engagement with fixed contacts 5, 6 by a three-pronged spring 1. In Fig. 5 (not shown), a carrier extending on both sides of a shaft carries bridging contact elements at its ends in arcuate slots, yielding movement of the carrier being permitted by the interposition of a spring between it and the shaft. In Fig. 3 (not shown), the contact element is carried in a block with arcuate slots which is mounted on a blade spring. The contacts may be made of silver and graphite.
Patent GB-742754-A (GB)
Title: Improvements relating to devices for perforating continuous webs of paper, and to machines incorporating such devices for the production of paper bags
IPC: B26F1/20
Filed: 1953-08-20
Abstract: 742,754. Cutting-apparatus. HONSEL, C., [trading as MASCHINENBAU HONSEL & CO.]. Aug. 20, 1953, No. 23001/53. Class 31 (1). A device for perforating continuous webs of paper 1 comprises a grooved cylinder 8 cooperating with a rotating perforating knife, the radius of which is adjustable such that the ratios of the diameter of the cylinder 8 to twice the radii at which the knife acts are integral or include proper fractions such as 1 : 2“ or 1 : 2¢ involving the use, respectively, of two or four symmetrically-spaced grooves in the cylinder 8. As applied to a machine for perforating continuous webs in the production of paper bags, the webs are drawn off a roll by drawing elements (not shown) and guided by rollers 2 past a device 3 for applying adhesive and then between the cylinder 8 and a roller 12 having blocks 11, 13, Fig. 2, on which perforating blades 9 and slitting blades 14 are mounted, the blocks 11, 13 being replaceable by others of different height to adjust the radius of the blades. The .cylinder 8 may be formed in a number of individual sections each corresponding with one of the blades 9, the blades 14 entering grooves provided between the sections. The roller 12 is mounted in an adjustable bearing 28 in the frame 29 and driven by gearing 15-23a, of which the gear 19 is a differential gear and can be influenced to advance or retard the perforating and adhesive-applying means, with respect to the web, by turning a hand wheel 24 connected to a gear 25 engaging the planet carrier of gear 19. The gear 23 is adjustable about the axis of the device 3 to allow adjustment of the roller 12 which is coupled by changegears to the cylinder 8 so that the latter has the same peripheral speed as the blades 9, 14, the speed of the web being approximately the same or slightly greater than the peripheral speed of the blades. A plurality of the arrangements illustrated may be disposed one behind, or above, the other depending upon the number of webs required for a bag, and two or three layers of paper can be perforated together.
Patent GB-1309969-A (GB)
Title: Process and apparatus for continuous extrusion of highly viscous melt
IPC: B29C48/05
Filed: 1971-04-19
Abstract: 1309969 Melt extrusion apparatus SOC DE LA VISCOSE SUISSE 19 April 1971 [3 April 1970] 23009/71 Headings B5A and B5B Apparatus for raising by internal friction the temperature of highly viscous melts, e.g. of polyamides, polyesters, polyurethanes, polyolefins and polyvinyl compounds during melt extrusion comprises an inverted, truncated cone 3, having grooves 4 of uniform cross-section which are straight, or slightly curved (Fig. 3), and extend from the top to the bottom of the cone, supported by a support plate 5 having a smooth conical bore into which the cone fits tightly leaving only the grooves on the cone surface for passage of the melt, the cone and support being made of a material, e.g. ceramic or chromium-nickel steel, which has a specific heat conductivity (at 20 C.) not exceeding 0À06 gcal/cm./sec./ C. In operation the cone 3 and cone support 5 are situated above spinneret plate 6 in extruder 10, the grooves 4 providing the only means of communication between chamber 20, which is supplied with molten polymer from hopper 14 via screw 16, nozzle 18 and pump 2, and chamber 26 situated immediately above the spinneret plate. The preextrusion temperature of the polymer melt in the apparatus is regulated by heat transfer liquid 23 in heating chamber 7, the truncated cone 3 allowing a melt pressure drop between chambers 20 and 26 of between 300 and 1100 atmospheres and a consequent increase in the melt temperature, suitably of between 5 and 60 C. Examples relate to the melt extrusion of filaments of polyethylene terephthalate and polycaprolactam at various spinning temperatures and pressures, the apparatus may also be used for making films, rods and sheets.
Patent GB-537680-A (GB)
Title: Process for the manufacture of polystyrene
IPC: C08F2/46
Filed: 1939-08-09
Abstract: 537,680. Polystyrene. SOC. DES USINES CHIMIQUES RHONE-POULENC., BACHMANN, E., BAUD, J., and FAVRE, J. G. Aug. 9, 1939, No. 23019. [Class 2 (iii)] Polystyrene of high molecular weight is prepared by subjecting to thermal polymerization at a temperature between 50‹ and 100‹ C. a styrene which has been previously brought into intimate contact with oxygen while at the same time having been subjected to the action of ultra-violet light. In examples, styrene is irradiated. by means of an ultra-violet ray lamp and at the same time a current of air is bubbled through it. The product is then either heated in a sealed tube, dispersed in water and heated, or first heated in an atmosphere of nitrogen and then emulsified in hot water and the heating continued.
Patent GB-316324-A (GB)
Title: Improvements in and relating to the art of esters of dibasic acids particularly esters of polyhydroxy compounds containing at least two free hydroxyl groups
Filed: 1929-07-27
Abstract: 316,324. Imperial Chemical Industries, Ltd., (Assignees of Lawson, W. E.). July 27, 1928, [Convention date]. Carboxylic esters of ether-alcohols. - Dibasic carboxylic acids or their anhydrides are treated with ethers, still containing at least one hydroxy group, of aliphatic polyhydric alcohols other than glycol, glycides, or hydroxy-alkyl ethers, to form the neutral or acid esters, temperatures high. enough to cause the esterification of secondary alcohol groups being avoided. The acid esters produced may be further esterified with a monohydric alcohol or with an ether-alcohol. According to examples, monoethylin acid phthalate is prepared bv heating-together equimolecular proportions of phthalic anhydride and monoethylin at 140‹ C. The product is converted to butyl monoethylin phthalate by heating it with excess of butyl alcohol and passing hydrogen chloride through the reaction mixture. Dimonoethylin phthalate is prepared by heating two molecular proportions of monoethylin with one of phthalic anhydride, also in the presence of hydrogen chloride. Monobenzylin acid phthalate may be prepared from monobenzylin and phthalic anhydride, and may be converted to butyl monobenzylin phthalate. Similar esters may be produced starting with other dibasic acids, or their anhydrides, such as the hydroxyphthalic acids, oxalic acid, and succinic acid, and with other ether-alcohols such as the monoalkyl. monoaryl, dialkyl, and diaryl ethers of glycerine, pentaerythritol, mannitol, and sorbitol. The products are suitable for use as solvents, and as plasticizers for cellulose derivatives.
Patent GB-1156471-A (GB)
Title: Improvements in or relating to Measuring and Control Systems
Inventor: HENDERSON FRANK
IPC: B23D33/00
Filed: 1965-06-01
Abstract: 1,156,471. Sheet metal feeds. TELEHOIST Ltd. 31 Aug., 1966 [1 June, 1965], No. 23212/65. Heading B3W. [Also in Division G3] Movement of a member is retroactively controlled at least over a terminal part of its travel by a system in which the member causes a device 9 producing a required speed signal to reduce this signal progressively to zero. The system is applied to apparatus for cutting predetermined lengths from metal strip 1. The strip is advanced to a guillotine 6 by a carriage 7 which is pneumatically clamped to the strip and to a supporting belt 5. The carriage is propelled by an hydraulic system (Fig. 3, not shown) at full controlled speed until it engages an arm attached to the slider of a potentiometer 11, or the coupling of a differential transformer, in the device 9. The output of 9 is compared with that from a tachogenerator, not shown, and the difference controls a valve in the hydraulic system. The carriage is finally brought to rest either by a mechanical stop or by the control signal reaching zero, any overshort causing reversal back to the terminal point. A switch 39 is also tripped at this time which, after a delay, causes the carriage to release the strip and reverse until stopped by a similar arrangement 10, 38 at the opposite end of its travel. This run back may be at an increased, uncontrolled, speed. Coarse adjustment to the cut length is made by re-positioning the control units 9, 10 and fine adjustment by a zero adjusting potentiometer or bridge circuit to adjustably back-off the control voltage. A switch 37 positively interrupts forward movement while shearing takes place.
Patent GB-1509286-A (GB)
Title: Selective and proportional hydraulic remote control device in particular for handling public works gears
IPC: F15B13/042
Filed: 1975-05-28
Abstract: 1509286 Valves BENNES MARREL 28 May 1975 [31 May 1974] 23271/75 Heading F2V An hydraulic remote control system comprising a pilot valve controlling flow to a relay valve distributing fluid to a jack or the like includes port means enabling the input crosssection of the pilot line to the relay valve to be varied whilst the exhaust cross-section of the pilot line remains constant. In one arrangement a pair of pilot valves operated by a common manual lever acting on pistons 5 each have inlet and outlet ports 2, 3 and control flow of pilot fluid via respective ports 23, 24 to pistons 17, 18 at opposite ends of relay valve spool 19. Each pilot piston 5 includes radial ports 13 which when one piston is depressed variably communicate input chamber 8 with a blind bore within the piston and thence with port 3. Simultaneously the other piston 5 is raised under the action of spring 6 to fully communicate radial ports in the piston with exhaust chamber 9 connected via port 4 to drain. Thus relay spool 19 is moved, e.g. rightwards, the displaced exhaust pilot fluid discharging through restricted passage 25 in piston 18 and thence via drain line 28, in addition to the flow through ports 24 and 4. In a modification, no port 4 is provided and all pilot fluid discharge occurs via passage 25 and drain 28. In another arrangement (Fig. 4, not shown) no drains 28 are provided in the relay valve but a restricted passage (35) extends axially through the spool to permanently connect the opposing actuating chambers (31, 32). Several pilot valves may be associated with each relay valve.
Patent GB-950425-A (GB)
Title: Improvements in the washing and wiping of windscreens
IPC: B60S1/48
Filed: 1962-06-18
Abstract: 950,425. Windscreen wipers and washers. ROBERT BOSCH G.m.b.H. June 18, 1962 [June 21, 1961], No. 23288/62. Heading A4F. [Also in Divisions F1 and H2] In a mechanism for washing and wiping windscreens washing liquid is delivered from a pump adapted to be driven electromagnetically by pulsating direct current, the current being provided by a D.C. motor, which also drives at least one wiper, and which comprises a collector brush slidable on a rotatable member, having at least one conductive part. The collector brushes 16, 17 slide on the commutator 15 of the revolving armature, and the collector brush 29 slides on a slip-ring 27 which is connected by a lead 28 to the conductive portion 15<SP>1</SP> of the commutator 15. The pump piston comprises a solenoid 7 and armature 8 which are moved against the force of a spring 9, one end of the coil 7 being connected to the collector brush 29.
Patent GB-603110-A (GB)
Title: Improvements relating to the illumination of rooms and other structures
IPC: F21V7/00
Filed: 1943-03-12
Abstract: 603,110. Lighting systems. JUNGERSEN, T. G. March 12, 1943, No. 23309/45. Divided out of 593,355, [Group XX]. [Class 75(iv)] [Also in Group X] A sheet reflecting material as described in Specification 595,355, [Group XX], is applied to the walls or ceiling of a room or other structure, an artificial light being provided to co-operate therewith. The reflector may be blacked out, or cut into the form of a pattern or letter. Reference has been directed by the Comptroller to Specification 323,203. [Class 20(i)].
Patent GB-977706-A (GB)
Title: Improvements in or relating to grass mower attachments
IPC: A01D65/00
Filed: 1962-06-18
Abstract: 977,706. Lawn mowers. A. J. PYM. June 18, 1963 [June 18, 1962], No. 23353/62. Heading A1F. A lawn mower attachment for raising the grass to be cut comprises a spindle 12 mounted in front of the cutter 11 and carrying tines 14 each of which extends through a diametrical hole in the spindle and has one end bent part way around the spindle and the same end or the other end extending down to ground level. Rollers 15 are attached to the ends of the spindle which is arranged so that it can be rotated and locked in position by lock-nuts so that the tines can be adjusted.
Patent GB-1443836-A (GB)
Title: Bipolar transistor construction method
IPC: H01L29/00
Filed: 1974-05-24
Abstract: 1443836 Integrated bipolar transistors TRW Inc 24 May 1974 [25 May 1973 (2)] 23395/74 Heading H1K In manufacturing an integrated circuit bipolar transistor a mask used in the formation of the collector region by diffusion or ion implantation is retained during formation of base and emitter regions or more limited extent by diffusion or implantation. The mask may be of silicon nitride, alumina, zirconia or a thick layer of silicon dioxide so that it remains substantially unchanged during formation and removal by etching of any thin silicon dioxide masking layers used in subsequent manufacturing steps. Typically a number of identical transistors are formed in a P-type silicon wafer by first providing a nitride mask 14 of rectangular frame form for each device, as shown in Figs. 1 and 2, S/2 representing the tolerance in mask alignment. In each subsequent diffusion or metallization step an oxide layer is provided overall and conventionally patterned to define masks of suitable form. After forming the collector region by diffusion through the entire central opening in each frame, the base region 22 and inversion stop region 24 are simultaneously diffused and then the emitter 26 and collector contact region 28. In another generally similar process the initial mask is of thick oxide and the zone arrangement such as to permit the base electrode to be located between the emitter and collector electrodes (Fig. 27, not shown). In a further variant in which the initial mask is in the form of a rectangular perimetered figure eight (Fig. 13), overlapping zones formed by diffusion through windows 54, 56 constitute the collector region, the base region is formed by diffusion through the wider window only and the emitter zone by diffusion through half of that window. Where ion-implantation is used the thin oxide masking may be replaced by hardened photoresist. Processing details are given and dopant concentrations specified.
Patent GB-532071-A (GB)
Title: An improvement relating to shuttles for looms for weaving
IPC: D03J5/00
Filed: 1939-08-16
Abstract: 532,071. Loom shuttles. LUNDGREN, W. E. Aug. 1939, No. 23584. Convention date, Aug. 17, . [Class 142 (iii)] To damp vibration in the spring arms 7 for holding the bobbin a rubber block 15 is arranged to engage the arms 7.
Patent GB-669090-A (GB)
Title: An improvement in or relating to hydraulic remote control mechanisms
IPC: F16H61/30
Filed: 1948-09-09
Abstract: 669,090. Change-speed control. BROWN & SONS (HUDDERSFIELD), Ltd., D., and EASTWOOD, T. Oct. 10, 1949 [Sept. 9, 1948], No. 23686/48. Class 80 (ii). [Also in Group XXIX] A hydraulic remote control mechanism comprises a gear change lever a, movement of which forwards or backwards, Fig. 1, actuates two axially aligned control pistons, connected by liquid columns to a corresponding pair of actuator pistons, to cause rotation of a lever e, Fig. 4, about the axis of a shaft f on which it is fixed, which produces a gear change, whilst sideways movement of the lever a moves a second pair of control pistons g, g<SP>1</SP> connected by liquid columns to the ends of the shaft f formed as pistons in cylinders h, h', to cause bodily movement sideways of the shaft f and lever e. When the lever a is in neutral position, a spring-loaded plunger j engages a detent in the shaft f, and the liquid columns are in communication with the oil reservoir through passages i in the pistons which may contain non-return valves. The pistons may be spring-loaded towards neutral position. Specifications 436,071, 484,954, 515,991 and 548,295, [all in Group XXIX], are referred to.
Patent GB-773025-A (GB)
Title: Process of petrolatum cracking in liquid and vapor phase
Inventor: BANES FRED WENDELL
Filed: 1955-08-17
Abstract: <PICT:0773025/III/1> A petrolatum or wax-bearing petroleum fraction, boiling above 650 DEG F., is cracked in the liquid phase at a temperature between 750 DEG  and 950 DEG F., and is then mixed with steam at above 1000 DEG F. and cracked in the vapour phase at 1000 DEG  to 1250 DEG F., and C9 to C19 olefins are fractionated from the cracked products.  The feed is cracked in the liquid phase in a coil 1, mixed with steam introduced in a line 5, and cracked in the vapour phase in a coil 2.  Coil 1 is heated in a convection heating section of a furnace, and coil 2 in a radiant heating section of the furnace. The products are passed by a line 6 to a primary fractionator 9, together with fresh petrolatum feed introduced by a line 7. Condensate collecting at about 600 DEG F. is removed by a pipe 14 to an accumulator 15 and then fed by a line 17 to the liquid phase cracking coil 1.  Tar from the fresh petrolatum is removed by a line 11.  Vapours are passed overhead by a line 19 through a condenser 20 to an accumulator 21, a portion of the oil condensate being refluxed by a line 24 to fractionator 9, the remainder passing by a line 25 to a fractionator 26.  C4 to C6 olefins are removed by a line 27, C7 to C8 olefins by a line 28, C9 to C12 olefins by a line 29, while higher boiling products are passed to a vacuum fractionator 31 where C13 to C19 olefins are removed by a line 32.
Patent GB-989626-A (GB)
Title: Improvements in or relating to cascade circuitry for counters
IPC: B41B25/24
Filed: 1961-06-30
Abstract: 989,626. Strip-perforating machines; justifying type. HARRIS-INTERTYPE CORPORATION. June 30, 1961 [June 30, 1960 (2)], No. 23754/61. Drawings to Specification. Heading B6W. [Also in Division G4] Phototypesetting apparatus comprises means for selecting a sequence of characters and interword spaces to make up lines of composition, comprising means operable in response to said selecting means to compute the space to be allocated to each selected character at the time of its selection, said computing means having an output providing in digital form the space information for each selected character, a line length accumulator counter connected to receive said digital spacing information and arranged to total the spacing information to maintain a count representing the space in a line to be occupied by the characters, said counter including a plurality of stages having forward cascade connections to carry from a lower stage to the next highest stage, reverse cascade connections between said counter stages, control means for said cascade connections adapted to connect said stages alternatively through said forward and reverse connectors to cause said counter to operate selectively in forward and reverse from the same digital input, manually controlled spacing means also connected to supply digital spacing information to said counter, and a reversing control connected to said control means for causing reverse operation of said counter to subtract space therefrom in accordance with additional digital inputs supplied from said computer and/or said manually operable means. The keyboard delivers signals to the perforator for punching or marking a tape in an 8-hole code representing binary digital information, the last (128) position being used in function codes as distinct from character codes. The space key also operates a word space counter. Character and space keys also deliver signals representing unit width to a selector counter, which operates in association with a rotating space code disc having slits corresponding to width information and operating photo-electric cells, and also in association with a rotating timing and computing disc also operating photo-electric cells, one of which is radially adjustable according to point size so as to be aligned with circles having more or fewer slits according to the number of pulses to be transmitted for revolution, to actuate the line length accumulator and store thereon the actual character width, which is a product of the unit width and the point size. The accumulator and word space counter are arranged to operate in reverse for subtraction on energization of a relay when a correction key or a kern key in an auxiliary keyboard is pressed. The correction key also produces a perforation in all eight portions when the erroneous key is again pressed. The kern key produces a kern function code. After the kern key, a selected one of several kern space keys is pressed, which subtracts a desired kerning space from the accumulator, and the kern key is pressed again.