baber/WOPTO huggingface dataset:
Patent GB-723051-A (GB)
Title: Improvements in conveyors
Inventor: CARLE ALEXANDER
IPC: B65G21/06
Filed: 1952-07-26
Abstract: 723,051. Endless conveyers. MAVOR & COULSON, Ltd. Sept. 2, 1953 [July 26, 1952], No. 18956/52. Class/78 (1). In a sectional conveyer which has an endless belt running over idler rollers each section has a terminal component formed with arcuate walled recesses having constricted openings and adjoining sections are each connected to an intersection support having turnable locking components that can each be set to pass through the constricted opening of one of the recesses and then can be turned to lock itself in the recess. The conveyer comprises a troughed upper run 19, supported by groups of three rollers, mounted on supports 21 on longitudinals 16. The lower run is flat and is supported by idler rollers 24 mounted on supports 18. The longitudinal member 16 has a dependent end member 17 having a slot 36 and side flanges 33. The slot engages over a stub axle 29a of one of two projections on the vertical support 28 of member 18 having a base member 27 and a crossmember 26. The stub axle carries a plate 30 having two opposed arcuate faces, and two flat sides. The plates are rotated so that the flat sides are vertical when the conveyer is being assembled so that the plate passes easily between the flanges 33. The plate is then rotated by projections 31 on the plate so that the arcuate edges engage the corresponding surfaces on the flanges 33 and thus lock the section in position.
Patent GB-1069780-A (GB)
Title: Electroluminescent device
IPC: H01S5/32
Filed: 1966-05-02
Abstract: <PICT:1069780/C4-C5/1> An electroluminescent source comprises a P, P-, P, (or N, N-, N) semiconductor structure across which a potential is applied to produce avalanche breakdown in the intermediate region, whereby the resulting electron-hole recombination produces radiation. In Fig. 1 a P-type gallium-arsenide crystal doped with manganese has its end regions 4, 6 diffusion doped with zinc which results in two high resistivity P-type regions R1, R2 being formed at the boundary of the zinc doped layers. Ohmic electrodes 8, 10 are provided by alloying or plating indium or similar metal.  The sides of the body may be polished to provide an optical cavity to effect laser action and alternating current may be used for excitation.
Patent GB-147145-A (GB)
Title: Improvements in electro-hydraulic steering apparatus
IPC: B63H23/24
Filed: 1920-07-07
Abstract: 147,145. San Giorgio Soc. Anon. Industriale. Sept. 17, 1918, [Convention date]. Hydraulic transmission of power.-An electric motor A drives a centrifugal pump B the suction and pressure pipes a and b of which are connected to the valve E, so that either side of the piston F may be placed under pressure. The piston rod H actuates the tiller and is connected by links c, d, e with the valve E and telemotor M. Each position of the telemotor corresponds to a definite position of the rudder, and the valve E is brought back to its neutral position by the movement of the piston. To reduce the speed of the motor when the rudder is near its mid-position and the torque required is small, a controlling-device G is introduced into the motor circuit and connected as shown. A liquid supply and replenishing tank C is connected to the suction pipe a.
Patent GB-978035-A (GB)
Title: Improvements in ceramic block filter driers
IPC: B01D35/02
Filed: 1963-05-15
Abstract: <PICT:0978035/C1/1> <PICT:0978035/C1/2> A ceramic block filter drier for both liquids and gases comprises an elongated hollow body of porous ceramic material open at one end having desiccant material located therein, a jacket sorrounding and spaced away from the body, inlet and outlet means adjacent the ends of the body and means forming a circumferentially extending seal between one end of the body and the jacket.  In a preferred embodiment, Figs. 1 and 2, the elongated cylindrical metallic case 11 is formed from a pair of dieformed cup-shaped shells 13 and 14 which are joined by a soldered internal sleeve 15, alternative means of joining are by mating threaded ends or an external sleeve with or without threads. Each shell is provided with a conduit coupler 16.  Within the case 11 is hollow porous ceramic filter block 12 and chamber 17 being filled to any desired degree with desiccant 18 which is held in place by a perforated metallic cap 19 and a fine woven wire strainer disc 20. The larger end of the ceramic block 12 has a diameter sufficient to produce a press-fitted seal against the inner surface of flange 22 on the cap 19.  The outer surface of the block is longitudinally fluted at 121 to maximize the filter surface area whilst a spring 24 holds the filter block firmly against the end of the shell 14.  The spring is coaxially mounted on the block by a cap 25 having a small concentric seat 26 into which the spring fits.  Alternative embodiments (Figs. 4 and 5, not shown), disclosed may have a shock pad of fibreglass at the smaller end of the body 12 to eliminate the looseness of the desiccant and a woven glasscloth over the open end of the chamber, alternatively the smaller end of the chamber may be open and the pad of fibreglass retained by a perforated metallic cup press-fitted into the opening.  Other embodiments (Figs. 8 and 9, not shown), illustrate the use of a porcelain filter block with a perforated cap of sheet metal or plastic and a pad of fibreglass adjacent to the cap, whilst the jacket is formed by a cylindrical body closed at one end by an integral transverse wall and closed at the other by a cap having a trough-shaped flange fitting peripherally within the jacket.  The drying and filtering of a refrigerant is disclosed.
Patent GB-1478022-A (GB)
Title: Mass colouration of polyesters
IPC: C08K5/43
Filed: 1974-05-02
Abstract: 1478022 Colouring polyesters IMPERIAL CHEMICAL INDUSTRIES Ltd 3 March 1975 [2 May 1974] 19246/74 Heading C3R A process for the preparation of a filament or other shaped article comprises adding a dyestuff of the formula in which R is an optionally substituted alkyl radical and R<SP>1</SP> is an optionally substituted alkyl or aryl radical, to a polyester through a side pocket in a screw feeder, following which the polyester is melted, mixed and extruded into the filament or other shaped article. The polyester is preferably polyethylene terephthalate. Reference has been directed by the Comptroller to Specification 1,282,211.
Patent GB-1340963-A (GB)
Title: Method and apparatus for making carrier bags
IPC: B31B70/00
Filed: 1971-06-07
Abstract: 1340963 Method and apparatus for making carrier bags WINIMÍLLER & HÍLSCHER 7 June 1971 [24 June 1970] 19256/71 Heading A4G In a method of making carrier bags a longitudinally edge split tube 1, Fig.1, is fed continuously in direction of arrow 2, plies 6, 7 opened by spreader 8, 9 after a score or perforation 3 has been effected at a handle position in both plies, a rotary plate 45, Fig.4 with cranked corners 46, 56 pivoted at 55 and positioned by fixed cam 59, withdraws pairs of rigid loop handles 12 on attachment strips from a stack 35 and positions them between the plies where they are gripped by welding bars 14, 15, Fig. 2, moving with tube 1 on endless chains 60, 60<SP>1</SP>, 61, 61<SP>1</SP>, the split is welded at 16, side pleats 17, 18 formed if required, score 3 extended at 19, 20 to the tube edges, a transverse bag-bottom weld 22, formed and the bag 1 torn off along the score line. The carriers 46 have leaf springs 47, 48, Fig.4 which grip the loop handle and force it through leaf springs 40, 41 at the bottom of stack columns 36-39. Cam 59 is such that the speed of the handles is less than the tube and welding bar speed so that the handles are withdrawn from the carriers and the cam allows the carriers to be withdrawn laterally from the tube without interference to following handles. The pairs of handles are inter-connected by a conical pin and socket allowing easy separation if the plies must be opened to form the pleats. The endless chains 60, 60<SP>1</SP>, 61, 61<SP>1</SP>, may carry more than one pair of bars e. g. 14', 15' and a variable speed gearing may be provided whereby the speed during welding may be adjusted for variable lengths of bags. The pairs of handles may have ridges on the attachment strips for engagement by the welding bars.
Patent GB-477918-A (GB)
Title: Improvements in or relating to the covering of structures such as buildings, caravans and the like having light metal frameworks
IPC: E04B2/58
Filed: 1936-07-11
Abstract: 477,918. Vehicle bodies. GIBBS, B. J. July 11, 1936, No. 19275. [Class 108 (i)] [Also in Group X] Means for securing a surface covering in the form of pre-formed slabs or sheets 5 on the lightmetal framework of a caravan comprises a clip 3 having a part complementary to the section of one of the metal frame members whereby it is adapted to engage therewith, and a pair of retaining plates 6 which are adapted to be passed over projections 2 on the clips and have serrations 7 on their opposed faces for the purpose of gripping the surface covering between the two plates, the said projections 2 of the clip being adapted to be bent over on to the outer of the retaining plates when the clip, retaining plates, and surface covering have been assembled on the framework. The frame member shown in Fig. 1 comprises an outer channel 1 having welded therein a channel 1a provided with inturned edges, and the clip 3 comprises guide members which fit within the channel 1a and have the projections 2 spot-welded thereto. The clip may be retained in correct position in the member la by interengaging projections and recesses on the two members. The serrations 7 may be formed by roughly-punched holes in the plates 6. The projections 2 on the clips may be of such length that, when bent over, they extend beyond the edges of the plates 6, and the extreme edges of the projections may be turned so that in the bent position they will be pressed into the surface covering. The clip shown in Fig. 4 comprises a main body portion 9 adapted to enter a channel frame member having inturned edges, and the members may be connected together by an inturned projection on the channel member entering a hole 12 in the clip. If desired, the frame member may consist of two channel members which have inturned edges and are secured back to back in spaced relation by metal strips spot-welded to the two members. The projections 2 on the clips may either pass through slots in the surface covering or be disposed in the joints between butting edges of the covering. The clip may be arranged to surround the frame member, instead of to fit into the same. The surface covering may be in the form of asbestos cement sheets, cork slabs, wallboard, or millboard.
Patent GB-1007680-A (GB)
Title: An improvement in or relating to locking devices for lifting tongs
Inventor: HUTCHINSON AMBROSE
IPC: B66C1/42
Filed: 1963-05-15
Abstract: 1,007,680. Locking devices for lifting dogs. LIFTING GEAR PRODUCTS (ENGINEERING) Ltd. May 4, 1964 [May 15, 1963], No. 19281/63. Heading B8H. A lifting tongs, Fig. 1, is held open or allowed to close on a load 56 by a rotatable member 30 with abutments 38, Fig. 6, which engage shoulders 46 on a gate member 32 attached to a jaw 10. When jaws 10, 12 abut the ground a pawl 48 adjustable by a stop 52 rotates the member 30 so that the abutments 38 are vertical. In this position the abutments pass between the shoulders 46 as the tongs are lifted thereby allowing the jaws to close. When the load is set down the member 30, which is restrained by a ball detent, is again rotated to a position in which the jaws are held open. In a second embodiment, Fig. 7, the rotatable member 30 is mounted on a pivot 14 for the jaws 10, 12 and the abutment 32 is attached to a liner 20. Abutment members 38 may be provided on one side only of the member 30 to engage a single plate 40, Fig. 6, instead of a pair of plates as shown.
Patent GB-1166017-A (GB)
Title: Digital Demodulator
IPC: H04B1/10
Filed: 1968-04-24
Abstract: 1,166,017. Demodulators. INTERNATIONAL BUSINESS MACHINES CORP. 24 April, 1968 [27 July, 1967], No. 19306/68. Heading H3A. A digital demodulator for frequency or phase modulated analogue signals comprises: a quantizing sampler 220 producing digital samples of the analogue signals; a digital amplitude and noise estimator 240 which produces an output representative of the signal/noise ratio; and means 260 for deriving from the samples and the signal/noise ratio signal, a signal representative of the modulation date. In a frequency modulator in discriminator circuit, Fig. 2, a generator 223 and delay line 224 produce pairs of pulses having a fixed time interval, the pairs occurring at random timing. These pulses sample the incoming analogue signal, and produce, at the output from 221, quantized samples. Bi-stable circuit 246 feed one of each pair of pulses to circuit 241 which arranges the last npulses in rank, and the output from this circuit is fed to a circuit 242 which computes the range of the n pulses. From this circuit an output is fed to a function generator 243 which produces a signal representative of noise. The output from circuit 241 is also fed to a "mode estimator" 244 which estimates from the n pulses the amplitude having the highest probability, and produces at its output a signal representative of amplitude. The noise and amplitude signals are fed to a divider 245 to produce a signal representative of the signal/noise ratio. The output from 221 is also fed to a subtractor 261 which estimates the differences between the pulse pairs. These differences are then fed via a "ranker" 262 and a "mode estimator" 263 to a function generator 264. This generator receives, as a second input, the output from divider 245, and produces at its output a signal representative of amplitude x frequency which is divided by the amplitude signal in divider 245 to give a signal representative of frequency at output 280. In apulsemodulation discriminator circuit, Fig. 6, the "sampling quantizer" includes a further sampling circuit 611 which produces a one bit digital output representing whether the sampled waveform was positive or negative. The sampling time is synchronized with the unmodulated input by a retro-actively controlled clock 613. The output from the sampler 611 is fed to a shift register which stores the last n pulses and the contents of the register are added in adder 663. The adder output and the signal/ noise signal from divider 245 are combined to produce the required output as before. Details of the "rankers", the "mode estimators" and the "function generators" are also given Figs. 3, 4, 5 (not shown).
Patent GB-711471-A (GB)
Title: Improvements in or relating to embossing devices for foil or other material
IPC: B44B5/02
Filed: 1950-08-02
Abstract: 711,471. Embossing rollers ; printing surfaces &c. HALL, C. T., and MOLINS MACHINE CO., Ltd. Aug. 2, 1951 [Aug. 2, 1950], No. 19311/50. Class 100 (2) A method of forming an embossed surface on a thermoplastic surfaced mating roller comprises pressing the mating roller and a patterned roller against each other while rotating them together and at the same time applying heat to the surface of the mating roller only at the region of the surface which at that moment is in contact with the surface of the pattern roller. The heat is applied to the surface of the pattern roller at a position remote from the contact position where the heat is transferred. An embossing device, Fig. 1, for embossing foil strip or other material comprises a steel.roller 2 engraved with the desired pattern and a mating roller 1 comprising a steel mandrel 8 with a thermoplastic sleeve thereover, the two rollers being spring-urged apart by light springs and supported in bearings 3, 4 in a frame 5. The roller 2 makes two revolutions to one of roller 1, the rollers being connected for rotation by spur gears. The bearings 3 are slidable in the frame 5 and in operation the rollers 1, 2 are pressed together by springs 6 bearing on a sliding bridge 33 supporting a spindle 31 having cams pressing against the bearings 3, the cams being operated by a lever 7 on one end of spindle 31. The embossing device is supported on a bracket 13 and has a fixed cover 10 and movable cover 11 which may be secured in position by a screw 12. To prepare the roller 1 for embossing, the embossing device, which may form part of a packing machine, is removed and mounted in the machine shown in Fig. 3, with the roller 1 disposed above the roller 2. This machine comprises a stand 16 with top plate 17 to which the bracket 13 of the embossing device is bolted. A motor 19 on a platform 18 drives an air compressor 20 for supplying air to a gas torch 21 and drives the roller 2 through a belt 22, gear box 23 and sprocket wheel 24 connected by a chain 25 to a sprocket wheel 26 on the spindle 28 of the roller 2. A hand crank 27 may also be provided for manual operation of the roller 2. A guard plate 29 is secured to the bracket 13 so as to lie close to the position of contact of the two rollers and the flame from the gas torch 21 is moved to and fro by the operator just below the guard plate and the flame adjusted to keep the temperature shown on a pyrometer 34 between 115‹ and 120‹ C. the pyrometer being positioned just before the contact position. Initially, the rollers 1 and 2 are separated until the temperature reaches 120‹ C. when the lever 7 is operated to bring them into contact. Two revolutions of the plastic roller are then made before lever 7 is operated to separate the rollers, the plastic roller being allowed to rotate once on its own while the temperature drops, the device then being ready for use.
Patent GB-984452-A (GB)
Title: Metallized formazane dyes containing at least one reactive group
Inventor: STEINEMANN DR WILLY
IPC: C09B62/018
Filed: 1961-05-29
Abstract: The invention comprises copper and nickel complexes of formazane dyes which in the metal-free form are of formula <FORM:0984452/C4-C5/1> wherein X is an OH or COOH group in o-position to -N=N-, Z is -O- or -COO-in o-position to -N=N-, -A1-X is the radical of a diazo component, -A2-Zn- 1H is the radical of a different diazo component, Y is a -COalkyl, -SO2alkyl or mono- or dinuclear -SO2aryl group which may be substituted, R is a radical containing at least one halogen atom which can be split off as an anion and / or ethylenic or acetylenic bond capable of addition and m and n are independently 1 or 2, or alternatively of formula <FORM:0984452/C4-C5/2> wherein X, Y, Z, R, m and n are as defined above and wherein one of the radicals -A3-X and <FORM:0984452/C4-C5/3> is the radical of a diazo component and the other the radical of half a tetrazo component.  The dyes are prepared by condensing the corresponding copper or nickel complexes of formazane dyes which contain at least one primary amino group with a reactive compound such as functional derivatives of haloaliphatic carboxylic acids or unsaturated aliphatic carboxylic acids, cyanuric chloride or bromide and their mono-condensation products, and di-, tri- and tetra-halopyrimidines.  The dyes give blue shades on cellulose fibres in the presence of an acid-binding.  They may also be used to colour wool, silk, synthetic polyamide fibres and leather. In an example, the formazane dye complex prepared by coupling diazotized 2 - amino - 4 - nitrophenol - 6 - sulphonic acid with 4 - acetylaminophenyl-sulphonyl-acetylmethane and coupling the product with diazotized 2-aminophenol-4,6-disulphonic acid in the presence of copper-yielding agents (the acetyl group linked to carbon is removed) and finally hydrolysing the acetylamino group is condensed with cyanuric chloride.  Further examples are specified. Specification 984,451 is referred to.
Patent GB-1215423-A (GB)
Title: Improvements in or relating to lathes
IPC: B23Q5/40
Filed: 1969-04-16
Abstract: 1,215,423. Screw cutting lathes. SCHAUBLIN S.A. 16 April, 1969 [17 April, 1968], No. 19353/69. Heading B3T. In a screw cutting lathe in which the traverse of the tool carriage 4 is effected by a gear drawing connection 6, 9 between a feed shaft 5 and a nut 10 on a lead screw 11 and whereby a positive or negative superimposed traverse may be provided by rotation of the lead screw by an auxiliary drive means constituted by reversible motors 17 and 19 means is provided to control the feed and rapid return traverses of the tool carriage and to ensure that the cutting tool is accurately positioned in relation to the start of the thread at the commencement of each traverse of the carriage. The lathe bed is provided with a slot 24 in which are adjustable cam members 23, 123 located at each end of the required traverse which co-operate with feeler members 21, 22 respectively mounted on an axially pivofable shaft 20 positioned parallel to the feed shaft and lead screw. The feeler members, by engagement with their respective cams effect tilting of the shaft 20 which actuates a switch 26 to control the sequence of operation of the auxiliary drive motors 17 and 19 to effect the required traverse and return movements of the carriage. During a feed traverse of the carriage the lead screw is stopped and the traverse produced from the feed shaft driving the nut 10, the lead screw being held in position by a solenoid-actuated plunger 12 engaging in a slot 13a in a cam disc 13 attached to the gear drive of the screw. When the switches 26, 28 are further actuated, at the end of the feed traverse, by the engagementbetween feeler 21 and cam 23, the plunger 12 is released and the lead screw rotated to effect a rapid return of the carriage. The operation for a series of passes for the completion of a threaded workpiece w is effected automatically and an electric circuit for the sequential operation is described, Fig. 4 (not shown).
Patent GB-704866-A (GB)
Title: Improvements in and relating to gas fires and like space heating means
Inventor: MOORE CHARLES JAMES
IPC: F24C15/24
Filed: 1950-08-03
Abstract: 704,866. Gas fires. CANNON INDUSTRIES. Ltd. June 26,1951 [Aug. 3,1950], No. 19383/50, Class 126 A unitary combustion chamber adapted to seat above the burner or burners of a gas fire and to receive and locate one or more radiants provides a passage for the flames and products of combustion to the interior of the radiants. A combustion chamber to accommodate three radiants has back, front and end walls 11, 12 and 13 respectively of refractory material. Ribs 17 on the inner faces of the front and back walls extend from front to back of the chamber and divide the combustion space into three cavities. Upstanding ribs 20 surrounding the cavities are formed on the top of the unit and together with further ribs 21 in line with ribs 17 provide locating means for the radiants, Fig. 3 (not shown). The base wall has three openings 23 for burner jets and openings 18 in the ribs 17 permit all the burners to be lit by one flame. The openings 23 are large enough to admit air for combustion and if more than one chamber is used, one or both end walls 13 are apertured to allow the burners in associated combustion chambers to be lit. Specification 704,865 is referred to.
Patent GB-1260613-A (GB)
Title: Production of carbon tetrachloride
IPC: C07C17/007
Filed: 1970-04-23
Abstract: 1,260,613. Carbon tetrachloride. COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION. 23 April, 1970 [24 April, 1969], No. 19459/70. Heading C2C. Carbon tetrachloride is produced by reaction of carbon and chlorine at 500‹ C. or more under a pressure of 5 atm. absolute or more. The carbon may be in the form of granular or powdered carbonized wood, lignite or coal, in a fixed or fluidized bed, activated by alternate passes of air and chlorine or by passage of a mixture of air and chlorine. The process is preferably continuous, unreacted chlorine being recycled. The initial chlorine pass may be discarded to avoid hydrogen chloride contamination.