baber/WOPTO huggingface dataset:
Patent GB-636416-A (GB)
Title: Improvements in or relating to electric timing circuits
IPC: H03K5/05
Filed: 1947-08-01
Abstract: 636,416. Automatic control systems. SPERRY GYROSCOPE CO., Inc. Aug. 1, 1947, No. 21032. Convention date, May 14, 1943. [Class 38 (iv)] [Also in Groups XXXVI and XL (c)] In an arrangement for generating a signal having steep wave-fronts formed by a periodic component that abruptly reverses in sign, this component is synchronized with a similar component of a reference signal. In the embodiment described, the reference signal comprises a rectangular waveform A, Fig. 2, generated at the anode of valve 29, Fig. 3, of a flip-flop multivibrator 11, triggered by pulses applied to terminals 26<1>. The length of the rectangular waveform is set by a manual bias control 34. The controlled waveform B, Fig. 2, is generated at the anode of the second valve of the multivibrator 14 which is triggered by the same pulses from terminals 26<1>. The pentagrid coincidence valve 15 has waveforms A and B<1>, which is an inverted form of B derived from the first valve of multivibrator 14, respectively applied to its two control grids, and passes current when both these grids receive positive signals simultaneously. This occurs when the trailing edge 56 of B precedes the trailing edge 58 of the reference signal B to produce an output waveform D. Similarly, valve 16 produces an output C when the trailing edge 58 precedes the trailing edge 57 of waveform B, being supplied with waveforms A<1> and B. The outputs of valves 15, 16 control the conductivities of the seriesconnected triodes 22A, 22B respectively and thus produce at their junction point a control voltage whose magnitude and polarity depend on the amount and direction of the non- coincidence of the trailing edges of the two signals. This control voltage is applied over lead 24 to bias one of the valves of multivibrator 14 to restore their coincidence. The invention may be used to cause a range step or gate of an automatic range-measuring radar system, such as described in Specification 624,407, [Group XL (c)], to come into line with a reference range step. The Specification as open to inspection under Sect. 91 comprises also a circuit similar to one of those described in Specification 624,407, [Group XL (c)]. This subject-matter does not appear in the Specification as accepted.
Patent GB-151245-A (GB)
Title: Driving system for alternating current meters on the ferraris principle
IPC: G01R11/36
Filed: 1920-07-12
Abstract: 151,245. Adert, (formerly Adamczak), L. Dec. 31, 1918, [Convention date]. Induction motor meters. - The shunt magnet a has two parallel limbs above the driving-disk c and a third limb bent at right-angles below the disk. The shunt winding b is wound on the limb nearest the periphery of the disk and produces fluxes cutting the disk in opposite directions at the two air gaps. The U-shaped series magnet e co-operates with the wound core of the shunt magnet to produce a forward driving- torque on the disk c; it also co-operates, through iron angle-pieces g attached to each pole, with the unwound limb to produce a backward driving- torque. The angle-pieces g are so proportioned as as to become saturated at about half-load, the effect being to ensure proportionality between current and torque through a wide range. A movable magnetic bridge d enables the ratio of forward to backward torque to be adjusted. Exact quadrature between the series and shunt fields is obtained by an adjustable copper or other non- magnetic piece h.
Patent GB-688976-A (GB)
Title: Improvements relating to bleaching earth
Inventor: NEUMANN BARBARA SUSAN
IPC: B01J20/12
Filed: 1950-08-25
Abstract: Moist or wet acid-activated and washed Fullers' earth and other bleaching earths of the hydrated silicate type, i.e. prepared from montmorillonite clays, are subjected to evaporative drying in the presence of a water-solvent, e.g. methanol, ethanol, isopropanol or acetone, and a third liquid which is immiscible or substantially immiscible with water, e.g. light hydrocarbons such as toluene or mixtures thereof, such as a petroleum fraction, or one or more chlorinated hydrocarbons, boiling within the range 65-120 DEG C.  The drying may, be effected by distillation at normal or reduced pressure, and part of the distillate, commonly the third liquid, may be refluxed until all of the water and water-solvent are removed. Specification 632,535, is referred to.
Patent GB-1537192-A (GB)
Title: Heat insulating article for use in the treatment of molten steel
IPC: B22D41/02
Filed: 1977-05-19
Abstract: 1537192 Heat insulating article AIKOH CO Ltd 19 May 1977 [8 June 1976] 21177/77 Heading C3N A heat insulating article for use in the treatment of molten steel comprises a mixture of 1-10% of Cr 2 O 3 , either as chromic oxide as such, or contained in a material consisting of or containing a mixed oxide or chromium hydroxide as the elements of Cr 2 O 3 , 50-95% of other refractory material, 0À5-40% of inorganic fibrous material, and 1-10% of a binder, the percentages being expressed by weight relative to the weight of the mixture. The mixture may include 0À5-8% by weight of an organic fibrous material, e.g. pulp. The inorganic fibrous material may be asbestos or rock wool, the other refractory material may be siliceous sand or olivine sand, and the binder may be a phenol resin or sodium silicate. The Cr 2 O 3  may be present as pure chromic oxide, chromite, chrome-magnesite brick, chrome-silica brick, chrome-alumina brick, or as baked chrome hydroxide which has been recovered from waste liquor from a chrome plating process.
Patent GB-1439718-A (GB)
Title: Process for sizing cellulose fibres
IPC: C08B31/00
Filed: 1974-05-14
Abstract: 1439718 Starch carbamic esters KEMANORD AB 14 May 1974 [15 May 1973 (2) 13 March 1974] 21295/74 Heading C3U [Also in Division D2] Starch derivatives of the general formula starch, wherein R 1  is a C 8-40  hydrophobic hydrocarbon radical, which may be substituted optionally by one or more inert substituents, and R 2  is the same as R 1 , or a C 1-8  alkyl, C 3  cycloalkyl, or a phenyl radical, are prepared by reacting an appropriate carbamoyl chloride with a starch. The latter may be native, refined, etherified or cationic starch. The examples describe the preparation of a starch derivative from (a) potato starch and distearyl carbamoyl chloride (Example 2); (b) cationic starch, distearyl carbamoyl chloride and cetyl chloroformate (Example 3); (c) cationic starch and distearyl carbamoyl chloride (Example 8) and potato starch and methyl decyl-, methyltetradecyl, or methylstearyl carbamoyl chloride (Examples 17-19).
Patent GB-346629-A (GB)
Title: Improvements relating to device for the production of amalgam mixtures, particularlyfor dental purposes
IPC: A61C5/68
Filed: 1930-07-14
Abstract: 346,629. Mixing-apparatus. GILL, H. A., 51, Chancery Lane, London.- (Deutsche Gold-und Silber-Scheideanstalt, vorm. Roessler ; 9, Weissfrauenstrasse, Frankfort-on-Main, Germany.) July 14, 1930, No. 21321. [Class 86.] An electromagnetic shaking device for making amalgam mixtures is formed as an alternating current relay, the armature carrying the container. The form shown is held in the hand, and the container 11 is carried by a forked member 8,9 secured to the armature 7. In another form, for use resting on a table, a balancing armature is mounted at the other end of the polepiece 2. The armature 7 may be provided with a solenoid.
Patent GB-645733-A (GB)
Title: Improvements in or relating to bungs or plugs for test tubes or other containers
Inventor: CUTTELL JOHN REGINALD
IPC: C12M1/24
Filed: 1948-08-12
Abstract: 645,733. Vent pegs. CUTTELL, J. R. Aug. 12, 1948, No. 21321. [Class 21] A resilient peg or bung used to close test tubes containing bacteriological media has recesses 14 in its lower end so that during sterilization, vapour may force the bung upwardly until the recesses emerge above the tube edge permitting its escape. Ribs 15 retain the bung in the tube. The bung may be hollow.
Patent GB-849887-A (GB)
Title: Anchoring systems
IPC: B63B21/50
Filed: 1959-06-22
Abstract: 849,887. Marine structures; drilling oil-wells. CALIFORNIA RESEARCH CORPORATION. June 22, 1959 [June 25, 1958], No. 21323/59. Classes 68(2) and 85. [Also in Group XXXIII] A marine structure, such as an off-shore drilling platform, is anchored by a radiating system of anchor lines of neutral buoyancy, so that they lie in straight lines in the water instead of in catenary curves, the upper ends of the anchor lines being connected to means for maintaining automatically a predetermined maximum tension in the lines. Fig. 2 shows the upper end of a tubular column 24 which has been floated horizontally to the drilling site, up-ended and sunk on to the sea-bed by flooding, and subsequently filling with sand, the bottom compartments. The column 24 accommodates a number of conductor casings 30, for guiding drill strings, the casings 30 being trussed together to form, with shells 34, 36 and longitudinal partitions 38, 40, a rigid column to strengthen the column 24. The anchor lines 64, 66 are arranged in pairs of opposed lines, e.g., three pairs, each line being attached to a bottom anchor consisting of a buoyancy chamber sunk in position by flooding and weighted by filling with sand. The anchor may have projections on its bottom to penetrate into the sea bed. The lines are made of neutral buoyancy by making them of interconnected sections of steel tubing, each section being sealed and properly weighted to be of neutral buoyancy; or a continuous metal tube sealed at its ends and having a wall thickness varying with depth; or a steel cable surrounded with buoyant material; or by buoying a steel cable at intervals. The lines 64, 66 of each pair are trained over pulleys 54, 56, 58, 72, 74 and attached to a single weight 62. The three weights for the three pairs of lines are each of segmental section to lie in circular fashion within the shell 36 longitudinal guides for the weights being provided. A stop 71 limits the fall of the weights if, for example, an anchor creeps. In a modification, the six anchor lines are arranged in two groups of three, each group being attached to a cylindrical weight which is arranged externally around the column. The two weights are of different diameters so that one weight is arranged within the other. The pulleys over which the anchor lines are trained to be attached to the weights are vertically adjustable by winches on the drilling platform. In another modification, the weights are dispensed with, three groups of two lines being attached to the piston rods of three pneumatic cylinders which are kept at the desired pressure by an air compressor and air accumulator. The three cylinders are joined by a common manifold to the air accumulator. Fig. 12 shows a conventional positive buoyancy tied-down drilling structure, the pontoons 158, 160 being kept submerged by lines 162. The anchor lines 166, 180 are arranged in pairs and connected to weights 174 accommodated in guide housings 176.
Patent GB-1267312-A (GB)
Title: Improvements in or relating to extractor for stripping pipes and other hollow parts from moulds and similar operations
IPC: B22D13/10
Filed: 1970-05-04
Abstract: 1,267,312. Ejecting articles from moulds. CENTRE DE RECHERCHES DE PONT-AMOUSSON. 4 May, 1970 [16 May, 1969; 14 April, 1970], No. 21328/70. Heading B5A. [Also in Division B3] Apparatus for extracting tubes or other hollow objects from their moulds comprises a plurality of jaws 8, Fig. 2, carried by a jaw carrier 4 rotatably mounted on a fixed support 1, and a device 13 for spreading the jaws apart in opposition to resiliently yieldable return means 9, the device 13 being radially expansible at least in the region of the point at which each jaw bears thereon, under the action of a compressed fluid. The device 13 may consist of a hollow elastic bulb having an inner wall 14 of rubber covered with layers 15 of heat insulating material e.g. mineral wool. In use, the extractor is introduced into a centrifugally cast pipe in a mould and compressed air supplied to the interior of the bulb 13 so that it expands and forces the jaws 8 against the inner surface of the rotating pipe. The extractor rotates about its fixed support 1 and is withdrawn from the mould bringing the cast pipe with it. In an embodiment, Fig. 5, the jaws 27 are forced outward by compressed fluid acting on pistons 25 sliding in bores 24. The hollow support 4a is rotatably mounted on a fixed support 1a. The apparatus is suitable for the extraction of pipes made of metal, plastics materials, concrete, asbestos-cement or other organic or mineral materials.
Patent GB-857177-A (GB)
Title: Process for drying higher fatty acid sarcosines
IPC: F26B3/20
Filed: 1959-06-22
Abstract: In a continuous process for heat drying normally solid higher fatty acid sarcosines and salts thereof a thin layer of aqueous solution is heated to a temperature sufficient to boil off the water, and melt and dry the sarcosine which is then cooled to a solid.  Saturated or unsaturated straight chain monocarboxylic acids containing from 10 to 18 carbon atoms are used and alkali metal, ammonium, amine, mono-, di-, or tri-ethanolamine salts are preferred.  The sarcosines may be prepared by condensing a fatty acid chloride in the presence of a hydrogen halide acceptor with sarcosine and the resulting amide solution which may include ethanol and isopropanol is then dried. Examples describe the drying of sodium N-lauroyl and N-palmitoyl sarcosinates in apparatus (see Group III) comprising a wiped film evaporator and a drum cooling roller to form pellets or alternatively a thin film heater in the form of a plate and frame filter press, a centrifugal liquid-vapour separator and a product cooler.ALSO:<PICT:0857177/III/1> <PICT:0857177/III/2> <PICT:0857177/III/3> <PICT:0857177/III/4> <PICT:0857177/III/5> In a continuous process for heat drying normally solid higher fatty acid sarcosines and salts thereof, a thin layer of aqueous solution is heated to a temperature sufficient to boil off the water and melt and dry the sarcosine, which is then cooled to a solid.  Apparatus described (Figs. 1 to 3) comprises a jacketed wiped film evaporator 18, containing a concentrically mounted vaned agitator 40, a perforated distributer 50, a chilled rotating drum 52, a doctor blade 58 and a collector 22.  An alternative apparatus (Figs. 4 and 5) comprises a thin film heater 70 of thin corrugated rectangular sheets 72, clamped between end plates 74, 76, a centrifugal liquid-vapour separator 77, a liquid distributer 78, a cooler 79, a doctor blade 110 and a collector 80.  A single sheet (Fig. 5) is spaced and sealed at the outer edges with a gasket 81 and is arranged to cause the heating medium to pass through every second successive space, and corrugations 86 cause turbulence in the stream.  Examples describe the drying of sodium N-lauroyl and N-palmitoyl sarcosinates to the form of pellets.
Patent GB-1315154-A (GB)
Title: Production and stacking of bags
Inventor: STOCK DAVID K
IPC: B65H33/08
Filed: 1970-05-05
Abstract: 1315154 Delivering sheets FMC CORP 5 May 1970 [5 May 1969] 21478/70 Heading B8R In apparatus for producing and stacking bags at predetermined rates, production of the bags is interrupted for a period after a predetermined number of bags has been stacked, this period being independent of the duration of a bag-making cycle, whilst the stack is displaced from the stacking station. Bags may be produced from a thermoplastic web (TW), Fig. 1 (not shown), by a reciprocable heated seal bar structure 14, the sealed and severed bags being fed via a conveyer (16) to drop into a stack S between side guides 172, a back stop 171 and a gate 175 mounted above an indexable endless conveyer belt 152. When the predetermined number of bags has been produced, as detected by counters in an electrical circuit, Fig. 2 (not shown), actuated by machine time pulses established in the circuit by limit switches (5LS), (6LS) associated with a machine device shaft, or when an overriding switch is manually operated, the seal bar structure 14 is lifted clear of its reciprocating push rod (34) by pneumatic motors (40), (64) and a machine brake is applied. At the same time the actuating arm 169 of pneumatic cylinder 170 is retracted, activating cylinders (181), Fig. 3 (not shown), and 182 which elevate the gate 175, subsequent extension of the arm indexing the conveyer belt 152 and the counted stack thereon underneath the gate which then descends on to the stack. After a predetermined time delay bag production is resumed and a new stack forms in shingled relationship with the indexed stack, Fig. 9 (not shown). The position of the gate 175 and side guides 172 is adjustable and the gate can also be adjusted to keep it substantially vertical when resting on shingled stacks. The conveyer belt 152 may be inclined to the horizontal.
Patent GB-889955-A (GB)
Title: An apparatus for the manufacture of homogeneous bodies
IPC: H01F41/16
Filed: 1958-07-04
Abstract: 889,955. Casting electrical components and other articles. VITRAMON Inc. July 4, 1958 [June 19, 1957], No. 21485/58. Class 87(2). In the manufacture of capacitors, inductors, resistors, ther mistors, printed electrical circuits, and other articles comprising particle homogeneously bon ded together, a sus pension of solid particles in a liquid is applied as superimposed layers to a casting plate 15 via a hopper 21 movable on guide bars 14 over the plate, and both the guide bars and the plate may be raised or lowered to permit the successive layers to be cast. The guide bars 14 may be adjusted by jack screws 11 and the plate 15 by two rack and pinion devices 6, 7. Liquid is removed from each cast layer by applying thereto an absorbent sheet 18 of paper or textile drawn from a roll 19, compacting the layer by a roll 50, and then stripping the sheet 18 therefrom. The discharge outlet from the hopper 21 is formed between a doctor blade 32, Fig. 3, and the edge of a gate 26 adjustable by a rack and pinion device 28, 30. In forming a capacitor the cast particles are of ceramic material, and to parts of the surface is applied a conductive layer, e.g. a suspension of powdered silver in a hydrocarbon solvent. The conductive layer is applied to the desired parts through a stencil adapted to fit over the plate 15. Specification 851,406 and U.S.A. Specifications 2,389,419 and 2,389,420 are referred to.
Patent GB-680316-A (GB)
Title: An improved trailer body for road vehicles
IPC: B60P3/05
Filed: 1950-08-31
Abstract: 680,316. Thermally insulated road vehicle trailer bodies. S. M. T. SALES & SERVICE CO., Ltd., TONATHY, H., and BLACK, D. S. P. April 4, 1951 [Aug. 31, 1950], No. 21530/50. Class 108 (i). A road vehicle trailer body for transporting meat &c. comprises, a foredeck 11 and a main deck 10, Fig. 1, mounted on crank-ended longitudinal chassis members 12, 13 and cross-members 9, and a roof fitted with straight rails 41 and an endless rail 43 carrying roller hangers 42 from which carcasses can be suspended, the rails being fixed to hooped load carrying frames 23 mounted on chassis outriggers 21. A loading well 20 is provided at each side of the body to reduce the loading level, and sliding doors are fitted. Each hoop 23, Fig. 5, consists of two uprights joined to a U-shaped top part by means of channel members 24. The floor 25, Fig. 7, is laid on the chassis members 12, 13, but is bolted to drilled angle members 26. Wooden rails 27, Fig. 1, bolted to the hoops 23, support inner and outer light metal panels 28, 29, and heat-insulating material 32 is packed between the panels at the ends, sides, roof, doors and wheel arches 8, and between the inner and outer floors 25, 33. Rubber seals are fitted round the doors, and for easy cleaning the lower interior of the body is covered with zinc sheet 35. The skirt rail of the framework 27 is attached to the outer ends of the outriggers 21 by small angle irons 34 welded to the arms 21. This skirt rail carries the edges of the panels and floors, and also the guide rails of the doors 30. Adjustable ventilators 36, and electric lights supplied from a battery 39 may be provided, and the foredeck may be built as a separate compartment. The carcasses are held at their lower ends by means of anchor rails 45, Fig. 2 (not shown), which rails are provided with a series of apertures which can be selectively engaged by hooks 46. The Provisional Specification describes one or more retractable loading rails which may be extended through the doors to link up with corresponding rails at the loading station.
Patent GB-281028-A (GB)
Title: Method of imparting heat to heaters by means of circulating heating gases
IPC: F26B23/00
Filed: 1926-09-01
Abstract: 281,028. Besta, A. Sept. 1, 1926. Heating by circulation of fluids.-The combustion chamber 1 of a heater 5, comprising a number of chambers 7 arranged side by side, is disposed within a conduit 3, and a heat equalizer 4 is provided at the entrance to the heater serving to mix combustion products with circulating gases which are returned through a conduit 13 by a blower 12 and re-heated by contact with the outer wall of the combustion chamber. A proportion of the heating gases is continuously discharged, as through a valve 17, corresponding to the quantity of gases introduced through the burner 2. The heating gases are deflected into. small streams which flow in parallel courses over the separate surfaces to be heated at such a velocity that the whole heater is uniformly heated. The conduit 10 in which the streams reunite for return to the blower is connected alternatively with a pipe 15 in which the valve 17 is located or with a pipe 16 leading to a waste heat utilizing apparatus 18 in which air or gases fed to the burner 2 may be heated.
Patent GB-898868-A (GB)
Title: Electric signal recording apparatus
IPC: H04N1/16
Filed: 1959-06-24
Abstract: 898,868. Recording-apparatus. ANRITSU ELECTRONIC WORKS Ltd. June 24, 1959 [July 17, 1958], No. 21648/59. Class 106 (4). [Also in Group XL (b)] Apparatus for recording electric signals comprises a helical groove 2 cut in a cylinder 1 rotated by a motor 3 to cause a metal ball 14, which enters a space between the groove 2 and a straight guide-gap 15, to make a linear scanning movement whereby the ball 14 may act as a stylus to record on a paper strip 6 moving transversely at constant speed. The guide-gap 15 lies between two magnetic rails 16, 17 supported on an insulating block 23, the rail being of angle-iron section to support permanent magnets 18. A channel 24 is filled with steel balls 14 so that when one ball is pushed therein at the left end another is pushed out at the right end to enter the helical groove 2. An electric signal to be recorded is supplied to the rail 16 and current passes through the steel ball 14 in the gap 15 to the rail 17 through the paper 6. Marking may be electrochemical or by electric discharge.
Patent GB-815879-A (GB)
Title: Calf feeding device
IPC: A01K9/00
Filed: 1957-07-09
Abstract: 815,879. Animal feeding devices. NEW ZEALAND PASTURE IMPLEMENT CO. PTY. Ltd. July 9, 1957 [Oct. 31, 1956; April 12, 1957], No. 21762/57. Class 5(2). A calf feeding device comprises a bowl or funnel fitted on the neck 11 of a milk container 12, teats 14 of resilient material connected to the wall of the funnel and communicating with its interior and tubes 25 extending from the teats downwardly inside the container. The bowl or funnel comprises a ring-shaped member 10 of sheet metal formed integrally with a conical member 13. A lid 16 is crimped to the outer edge of member 13 which has apertures 19 into which the teats 14 are fitted. Each teat 14 has a thickened portion at its inner end 21 constricting its bore, a rib 24, annular groove 23 and flange 20. Each tube 25, of resilient material, is of slightly larger diameter than the bore of its respective teat. The lip of the hole 19 exerts pressure on the teat to compress the tube and thereby hold it in position. To remove teats and tubes from the container, each may be pressed inwards of the container, the rib 24 being made to flex and so pass through aperture 19.