baber/WOPTO huggingface dataset:
Patent GB-1383679-A (GB)
Title: Process for development of two-component diazotype photosensitive  materials
IPC: G03C1/61
Filed: 1972-07-27
Abstract: 1383679 Developing two-component diazotype materials MITA INDUSTRIAL CO Ltd 27 July 1972 [31 July 1971 26 Nov 1971] 35237/72 Heading G2C Exposed two-component diazotype materials are developed by applying thereto an aqueous developer comprising 5-60 wt per cent of an alkali metal or alkaline earth metal salt of a carboxylic acid and not containing a coupler and then heating to between 70 and 120 C. The acid may be an aliphatic, aromatic, araliphatic or heterocyclic mono-or polycarboxylic acid or an alicyclic monocarboxylic acid. Preferred salts are sodium, potassium, lithium and calcium acetate, sodium mono- and trichloroacetate, sodium or potassium formate, sodium, magnesium or sodium potassium tartrate, sodium or magnesium benzoate and sodium salicylate or oleate. The developer may also contain a mono-or polyhydric alcohol, a surfactant, a polymer or a fluorescent dye. The diazotype material may be as set out in Specification 1292163 and may contain urea, trichloracetic acid, a dye or a urea/aldehyde resin or may be developed to produce multicolour copies as also set out in Specification 1292163. Alternatively, multi-colour copies may be produced by using a material containing a diazonaphthol sulphonic acid when on exposure through a faint image (e.g. a pencil image) generates a coupler and couples with the undecomposed diazo compound and also containing another diazonium salt and a coupler which couple in the normal way in the unexposed areas under dense image (e.g. an ink image). The diazotype layer may be coated on a support coated with a butadiene/methyl methacrylate copolymer.
Patent GB-1123540-A (GB)
Title: Pattern attachment for tufting machines
IPC: D05C15/32
Filed: 1967-08-01
Abstract: 1,123,540. Tufting machines. SINGER CO. 1 Aug., 1967 [15 Sept., 1966], No. 35265/67. Heading DIG. A tufting machine is provided with yarn feed means comprising a plurality of feed rollers rotated at different speeds, a plurality of individually movable yarn support mechanisms, each yarn strand being operably engageable with each feed roller, by a yarn support mechanism disposed adjacent thereto, for feed at a spaced determined by the speed of the roller, a separate actuator mechanism for each yarn supply mechanism to move the latter relative to its associated roller, and control means for effecting selective movements of the actuator mechanisms to produce tuft lengths in accordance with a predetermined pattern. As shown, yarn feed rollers 56, 58, 60 rotate at different speeds. A strand of yarn, e.g. 40a, passes in succession over support rollers 86, 88, 90 positioned adjacent the rollers 56, 58, 60 respectively. Each support roller is journalled at one end of a lever 92 pivoted intermediately on a fixed spindle 94. The other end of lever 92 is connected by a link 96 a lever 98 which is journalled intermediately on a fixed spindle 100 and is connected by a link 102 to the armature 104 of a solenoid 108. Every yarn strand passes over support rollers 86, 88, 90, connected similarly to respective solenoids 108. Energisation of a solenoid causes the coupled support roller to engage the associated yarn with the associated feed roller. Every yarn may therefore be fed at any one of three speeds. Energisation of the solenoids is controlled by illuminated pattern drum means 110, 112 co-operating with respective photo-cell means 114, 116. Drum 110 controls high and low tufts and drum 112 controls high and medium tufts.
Patent GB-985495-A (GB)
Title: Vacuum evaporation method
IPC: H01L39/00
Filed: 1961-09-29
Abstract: In a method of vacuum evaporation of thin films on a substrate, the pressure of all the gases within the system is reduced to a value within the range 10-5 to 10-6 mm. Hg. and the partial pressure of selected ones of the gases is then reduced to values below the above range and the material is subsequently evaporated on to the substrate.  The partial pressures of oxygen may be lowered by using a Ti getter, of water vapour by baking the apparatus and by use of a liquid nitrogen trap which latter also removes CO2. Examples refer to the evaporation of tin and indium (possibly through a mask).
Patent GB-451905-A (GB)
Title: Improvements in apparatus for separating gas and/or vapour from a mixture of gas and/or vapour and liquid flowing through a tube
IPC: B01D19/00
Filed: 1935-05-28
Abstract: <PICT:0451905/III/1> <PICT:0451905/III/2> In apparatus for separating gas or vapour from a liquid flowing in a tube, and particularly intended for use as a steam separator in the steam generator described in Specification 448,657, separation is effected over a substantially horizontal tube length 3, Fig. 1, by forming the upper part of the tube with holes or slits 6 through which gas or vapour is led off by a pipe 7 connected to the tube lengthwise, or by enlarging the cross section of a tube length 11, Fig. 3, and taking the gas or vapour off through a pipe 15 connected to the enlargement.  A connection 8 is provided between the lead-off tube 7 and the length 5 of the tube following the separator.  Two or more tube lengths 3 may open into a single lead-off pipe.
Patent GB-1240558-A (GB)
Title: Improvement relating to a ventilator unit
Inventor: HUGHES JOHN BENJAMIN RHODES
IPC: F04D27/02
Filed: 1969-07-16
Abstract: 1,240,558. Ventilating buildings. GREENWOOD AIRVAC VENTILATION Ltd. 2 July, 1970 [16 July, 1969], No. 35713/69. Addition to 1,166,341. Heading F4V. A unit ventilator having a housing removably mounted on a chassis plate which supports a fan and its driving motor, as described in parent Specification, is modified by elements which co-operate only when the housing and plate are correctly assembled together to complete an electric circuit including the motor. In one embodiment, a plastics tongue mounted on the inside surface of the housing includes one or more strip bridging contacts and is insertable into a slot in a block mounted on the chassis plate to engage two spaced resilient contacts. In another embodiment, the tongue is not provided with contacts and the block includes a rigid contact and a resilient contact which is pressed into engagement therewith by the tongue.
Patent GB-390578-A (GB)
Title: Improvements in or relating to automatic latches on safety covers or guards and associated protective means for centrifugal apparatus
IPC: B04B7/06
Filed: 1931-12-24
Abstract: 390,578. Machinery guards. MANLOVE, ALLIOTT, & CO., Ltd., Bloomsgrove Works, Nottingham, ALLIOTT, E. A., Rostherne, Hervines Road, Amersham, Buckinghamshire, and WARD, H., 9, Julian Road, West Bridgford, Nottingham. Dec. 24, 1931, No. 35731. [Class 80 (iv).] A guarding device, such as the cover of a centrifugal drier, is provided with latching mechanism such that if the moving part to be guarded is in motion the guard cannot be moved from operative position. The cover C is hinged on the same spindle 6 as a crank arm 1 which protrudes into a casing 2 containing a looking bar 9, 10 pivoted at 11. The bar is spring-pressed in a counter-clockwise direction and supports a swinging pawl 12 by means of a pin 17. The bar 10 and pawl are formed with cheeks 15, 14 respectively. A slowmotion knob 24 and plunger 22 are provided for depressing the lever 10. If this is done while the basket 4 of the drier is in motion, when the foot 16 of the pawl touches the basket it is swung to one side so that the cheek 14 obstructs the cheek 15 in its descent so that the descent of the lever 10 is checked. The arm 9 is normally in the path of a projection on the crank and is insufficiently withdrawn unless the basket is at rest. The cover cannot be opened, therefore. If the machine is electrically driven a switch 30 is fitted, and connected as shown to the end of the lever 10. When the lever 10 is pushed down the contact 30a is broken and a solenoid holding a starting handle in " on "-position is de-energized; when the contact 30b is made the handle is looked in "off "-position. A sliding bolt 32 may be provided to work in conjunction with the source of power and so provide an additional safeguard. The bolt may, for example, be connected to belt-shifting gear, to the controlling valve of a hydraulic motor, or to the switch of an electric motor. In the device shown in Fig. 9, the bolt 32 has a neck 37 adapted to be engaged by a slot in the lever 9, and is connected by a Bowden wire with a cam 39 adapted to lock the driving control against operation. The bolt 32 may be employed to control a brake, Fig. 12, being withdrawn against a spring 46 by a cable having a lostmotion connection at 47 with a lever 48 held in " on " position by a catch 49. The brake is preferably self-locking in the " on " position and arranged so that it cannot be worked simultaneously with the guard.
Patent GB-754092-A (GB)
Title: Improvements in or relating to adjustment mechanism for internal shoe-drum brakes
Inventor: CLARK WARREN GAMALIEL
IPC: F16D65/46
Filed: 1954-12-10
Abstract: 754,092. Internal shoe-drum brakes. BENDIX AVIATION CORPORATION. Dec. 10, 1954, No. 35868/54. Class 103 (1). The screwed adjustor 26 on an internal shoedrum brake is prevented from rotating undesirably by means of a resilient detent member 36 having portions 39 and 41 which press upon the brake shoe web, a tooth member 48 which engages the serrated wheel 30 of adjuster screw 26 and two transverse arms having ends 42 bent over which engage the underside of the wheel.
Patent GB-1140228-A (GB)
Title: Improvements in or relating to electric semiconductor arrangements
IPC: H01L23/16
Filed: 1966-08-10
Abstract: 1,140,228. Semi-conductor devices. SIEMENS - SCHUCKERTWERKE A.G. 10 Aug., 1966 [12 Aug., 1965], No. 35896/66. Heading H1K. A semi-conductor arrangement (such as the bridge rectifier of Fig. 4), consisting of one or more semi-conductor elements sandwiched between members such as conductor bars 11, 12, 13, 14 extending substantially beyond the edges of the semi-conductor element or elements, is fitted into an oblong section housing as shown in section in Fig. 2, by sliding members 11, 14 of the arrangement into guideways 5, 6 in the shorter side walls of the housing. The housing may subsequently be filled and sealed with solid insulation, preferably by filling the housing with a resinous insulant in liquid form before inserting the semi-conductor arrangement, and heating to cure the resin after insertion. The invention is particularly applicable to the encapsulation of an arrangement having the constructional features and/or produced by the method claimed in Specification 1,057,003.
Patent GB-988731-A (GB)
Title: Filter
IPC: B01D35/14
Filed: 1962-09-20
Abstract: 988,731. Filters for liquids. BORG-WARNER CORPORATION, and J. D. ROBBINS. Sept. 20, 1962 [Oct. 4, 1961], No. 35908/62. Heading B1D. Dry-cleaning solvent from the solventreceiving tub 11 of a dry-cleaning machine I passes by way of an outlet hose 164 to a header 159 and thence to the inside of a filter 157 consisting of a cylinder 12 perforated at its lower part 14 and having a bottom 13. A mesh screen 15 covers the inside of the perforated part, and an open-ended by-pass tube 16 extends through an opening 17 in the bottom 13, so that on clogging of screen 15 the liquid level rises until liquid overflows the edge of the tube 16 and passes down it into the tank 152 for filtered solvent.
Patent GB-1203519-A (GB)
Title: Flavor enhancing composition
IPC: A23L27/20
Filed: 1968-07-26
Abstract: 1,203,519. Flavour enhancer. GENERAL FOODS CORP. 26 July, 1968 [1 Aug., 1967], No. 35926/68. Heading A2B. A dry solid composition for enhancing flavour, in particular the fresh flavour of fruit and vegetables comprises acetaldehyde and a water soluble or dispensible carbohydrate of formula (C 6 H 10 O 5 ) n  or hydrophilic colloid free of amine groups, for example lactose, sucrose, maltose, corn syrup solids, dextrins, partially hydrolysed starch, gum arabic, larch gum, irish moss, and carragheenan. The addition of water to the composition releases the active ingredient acetaldehyde.
Patent GB-327704-A (GB)
Title: Improved device for enabling motor vehicles to be turned in confined spaces
IPC: B60S9/20
Filed: 1928-12-06
Abstract: 327,704. Thimonnier, R. M. Dec. 6, 1928. Stands or supports.-A device for enabling a. vehicle to be turned in confined spaces comprises two air-pressure jacks attached to the frame rearward of the front wheels and fitted with wheels 1 the angle of which is adjustable for steering. When a push-cock 25 on the dash-board is operated, compressed air passes from a reservoir 15 to the jack cylinders 6, and the pistons and wheels 1 descend raising the front road wheels 10<a>. The pistons have Y-grooves 13a, Fig. VI, and guide grooves 54, 55. Projections 11 on the inside of the cylinders engage the grooves 13a, and after a certain vertical descent pass into one of the branches 51, 13, and so cause the pistons and wheels to turn either right or left. The direction is determined by pins 52, 53, Fig. VII, adapted to engage the guide grooves. They are carried by a lever 56 operated by a piston valve 22 communicating with a cock 26, by operating or not operating which the direction of turning is regulated. The driving wheels of the car remain on the ground and are utilized to turn the car in a forward or backward direction.
Patent GB-1189958-A (GB)
Title: A Numerical Control Device
Inventor: POMELLA PIERO
IPC: G05B19/4103
Filed: 1968-07-29
Abstract: 1,189,958. Programmed control of machine tools. ING. C. OLIVETTI & C.S.p.A. July 29, 1968 [Sept.16, 1967], No.36133/68. Heading G3N. A numerical control device for positioning a movable part along one or more axes, comprises a programming unit for supplying discontinuously co-ordinates of successive points, an interpolating unit, responsive to the co-ordinates and a corresponding maximum speed value, to cyclically increment, during a first phase, the speed to the maximum value, maintain this speed during a second phase and during a third phase reduce the speed, the programme unit being responsive to a manually adjusted maximum permissible speed value and the interpolator unit comprises a plurality of circulating registers. As shown, a numerical control system, as disclosed in Specification 1,154,761, comprises an interpolating unit 4 fed with a recorded programme on a tape 1 from a reader 2. The interpolator is a digital computing device employing recirculating registers feeding a digital to analogue converter 5 which, in turn, feeds position servomechanisms 6-8 adapted to position a movable part of a machine tool about the X, Y and Z axes. To reduce the number of converters the axes are addressed cyclically through switching devices 9X-9Z and the servomotors are fed in synchronism through switching devices 10X-10Z. The device 3 permits the modification of the programmed, or manually entered, feed speed of the movable part along the relevant axis. The device 3 comprises a manually actuated switch the output of which is binary in accordance with the Gray-code and is switchable in equal percentage steps. The binary output is held in a register and a counter is brought into agreement through a logic network at the rate of one count each interpolating cycle, so effecting a smooth transition on a percentage change in speed. The logic network also conditions an adder whereby feed-rate recirculating register of the interpolator is updated.
Patent GB-774021-A (GB)
Title: Improvements in or relating to looms for weaving
IPC: D03D39/10
Filed: 1954-12-15
Abstract: 774,021. Looms with stationary weft supply. PORTER, I. S. Dec. 12, 1955 [Dec. 15, 1954], No. 36247/54. Addition to 704,401. Class 142 (2). [Also in Group XXIV] Weft drawn from a stationary supply is inserted in the shed by a needle reciprocated by the epicyclic motion used as described in the parent Specification to insert and withdraw pile wires. The weft W is drawn from a package 8, through a tension device 9, to a needle 2 mounted on a slide 1. The slide is reciprocated by cords 3, 4 driven from the arm 6 of the epicyclic motion. Selvedge forming means, which may comprise a selvedge shuttle, is provided.
Patent GB-1221894-A (GB)
Title: Apparatus for determining the position of a railway vehicle on a track in an installation for the centralized control of the running or trains
Inventor: JAUQUET CHRISTIAN
IPC: B61L3/22
Filed: 1969-07-18
Abstract: 1,221,894. Determining train position. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. 18 July, 1969 [30 Aug., 1968], No. 36258/69. Heading B7N. In an arrangement for determining the position of a train in a track zone by counting phase reversals at marking points defined by crossovers or the like in an A.C. energized cable extending along the track, a logic circuit arrangement is provided for subtracting marking points passed in the opposite to normal direction of travel through the zone and for determining on entry to the zone this normal direction of travel. The train is provided with three pick-up coils X, Y, Z, aligned in the direction of train travel and pairs of these are connected via respective filters F 1 , F 2 , F 3  to phase detectors DP 1 , DP 2 , DP 3  which supply "1" signals on lines a, b, c when a 180 degree phase difference occurs between the signals picked up by coils x + y, y + z, x + z, respectively. The phase detectors supply logic unit LDM which provides forward or backward counting pulses on lines c and d respectively in dependance on whether the signal on line a occurs before or after that on line b during the presence of a signal on line c. If coil X leads during normal direction of movement through the zone then at the first zone cross-over a a pulse is supplied to logic circuit LDC from level detector DN 2  connected to coil X before it receives a pulse from level detector DN 1  connected to coil Z. If coil Z leads then an opposite pulse sequence is obtained. Logic circuit LDC acts on inverter I to allow direct connection of lines a and b to logic circuit LDM when coil X leads but inverted connection if coil Z leads.
Patent GB-994605-A (GB)
Title: Improvements relating to photo-lithographic printing plates and solutions for sensitizing the same
IPC: G03F7/016
Filed: 1963-09-16
Abstract: 994, 605. Light-sensitive materials. S. D. WARREN CO. Sept. 16, 1963 [Sept. 21, 1962], No. 36371/63. Heading G2C. An aqueous solution comprising 1 part by weight of a paradiasodiphenylamine-formaldehyde condensate in the form of a heavy metal salt and 3. 5 to 7. 5 parts by weight of phosphoric acid based on 100% acid is coated on a support and used to produce lithographic plates. The specified heavy metal salt is zinc chloride.
Patent GB-984249-A (GB)
Title: Plug and socket assembly
IPC: H01R13/434
Filed: 1962-09-26
Abstract: 984,249. Studs and socket fastenings. AUTOMATIC TIMING & CONTROLS Inc. Sept. 26, 1962 [Sept. 26, 1961], No. 36547/62. Heading E2B. [Also in Division H2] In a plug and socket assembly for connecting electrical apparatus to a fixed installation, the plug half has pins 14, each of which passes through a clearance aperture 15 in a mounting- block 12 and has its axial movement limited by an integral flange 20 and a retaining washer 28, which are spaced to allow the pin to tilt and align itself with a mating socket pivotally held in a front spacing member 40 and rear mounting block 12<SP>1</SP>. Teeth 19 of washers 28 bear in peripheral grooves 17 of pins 14, and the washer rims seat in recesses 25b in the block 12, which is positioned in a surrounding shell 8 by a flexible ring 10. The near shanks of sockets 52 are held in their respective apertures in block 12<SP>1</SP> by a similar washer-flange arrangement without any clearances to allow tilting. The front ends of sockets 52 are spun over into tapered apertures in rigid spacing member 40, and the rear ends have flat blades 68c over which are pushed connectors 70 with attached leads 72 from an electrical apparatus such as a timer, which may be forced mechanically to block 12 by means of a hexagonal member 48 and bolt 50. The spacing member 40 carries a polarising projection 42 which passes through an aperture 18 in block 12 and has a transverse aperture 44 which may be engaged by a cotter pin (Fig. 6, not shown) at the rear of block 12 to lock the plug and socket halves together.
Patent GB-867910-A (GB)
Title: Improvements in welding head manipulators
Inventor: SWAN ROBERT LAW
IPC: B23K37/02
Filed: 1956-11-29
Abstract: 867,910. Welding by fusion. LINCOLN ELECTRIC CO. Ltd. Feb. 28, 1958 [Nov. 29, 1956], No. 36576/56. Class 83 (4). A welding head manipulator has an upright column of hollow or skeleton construction with a vertical slot in one wall and a radial arm carrying the welding head and attached to or integral with a carriage having rollers engaging the inner faces of the slotted wall and at a lower level the inner face of the opposite wall. The column consists of four angle girders 21 connected by plates 22, 23. The arm 35 and carriage 30 pass through a slot between plates 24. Rollers 32 at the top of the carriage engage the inner surfaces of the front angle girders 21 and a roller 34 at the bottom of the carriage engages the inside of the rear plate 23. Counterbalance weights 47 are linked by chains 59 to the carriage 30 which is raised by a hand wheel 64 or an electric motor. A manuallyactuated cam 80 locks the carriage in position. The welding head 40 is moved along the arm 35 by an electric motor up to a limit switch 41 and is returned manually. The column is eccentrically journalled in a bearing 88 to counterbalance the weight of the arm 35 and welding head 40, and carries a supporting disc 90 running between rollers 91 mounted on a fixed base 89. A lever 98 clamps the disc 90 in its adjusted position relative to the base.
Patent GB-1019592-A (GB)
Title: Improvements in or relating to optical lens systems
Inventor: HOPKINS HAROLD HORACE
IPC: G02B13/00
Filed: 1961-10-12
Abstract: 1,019,592. Lens systems. COMMUNICATIONS PATENTS Ltd. Oct. 2, 1962 [Oct. 12, 1961], No. 36612/61. Heading G2J. A relay lens system comprises a front convergent member 11, a middle convergent member 12 and a rear divergent member 13, each member having a focal length numerically greater than that of the lens system. As shown, the front member 11 consists of three simple lenses, the middle number of two doublets and the rear member is also of two doublets and forms at O<SP>1</SP> 3  a virtual image of the real image formed at O<SP>1</SP> 2  by members 11 and 12. Preferably, the sum of the powers of members 11, 12 and 13 is zero or at least very small relatively to the power of the whole system; also, numerically, f 11  > f 12  > f 13 . Optical data are given for the example shown which is intended for viewing a landscape model in an aircraft flight simulator for training pilots in visual landings.