baber/WOPTO huggingface dataset:
Patent GB-566795-A (GB)
Title: Improvements in and relating to the production of relief images
IPC: G03F7/027
Filed: 1943-04-14
Abstract: A relief image is produced by polymerizing to a rigid article a liquid polymerizable ethenoid composition, preferably containing a polymerization catalyst, by means of heat and/or light rays passed through a suitable image bearing transparency, and subsequently developing the latent image produced by heat or treatment with a solvent for the polymerized composition.  The degree of polymerization in the rigid polymer varies according to the intensity of light to which it is subjected, and the variation is converted into a surface relief, (1) by heating (causing the under-polymerized material to shrink) or (2) treatment with a solvent with consequent preferential dissolution of the underpolymerized material.  By a liquid polymerizable ethenoid composition is intended a monomer containing one or more CH2=C< groups or a mixture of such monomers, or a solution in such monomers of one or more polymers or partial polymers of such monomers.  Specified are methyl acrylate, methacrylate and chloracrylate, vinyl acetate and styrene with or without dyes, pigments, fillers, plasticizers and inhibitors. Catalysts specified are benzoyl and lauroyl peroxides, benzoin and diacetyl. Solvents mentioned for the development of the relief image are an 80 : 20 mixture of methyl and n-butyl alcohol and 10 per cent solution of caustic soda.
Patent GB-621993-A (GB)
Title: Improvements in or relating to radio frequency systems
IPC: H03F3/54
Filed: 1947-03-03
Abstract: 621,993. Aerial coupling arrangements; receiving systems. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 3,1947, No. 5979. Convention date, Sept. 22, 1943. [Class 40 (v)] [Also in Group XL (b)] In coupling an input line 2 from an aerial to a valve 8, a resonator 3 is used comprising a core 4 connected at one end to a conducting sheath and at its other end through a condenser 6 to the sheath and this end is connected to the valve grid 12 through a condenser 13. The sheath is approximately an integral number of quarter wavelengths long of the frequency to be received, with a resonant frequency partly dependent on the condensers 13, 6, and variable by the condenser 6. The condenser 13 has a value approximately equal to the grid-cathode capacity 28 of the valve 8 and together with the input tapping 7 is variable for impedance matching. The frequency input may be heterodyned by cathode-injected oscillations from a generator 16 with frequency controlled by coupled quarter-wave rods 22, 21, and cathode output' circuit comprising a variably tappedconducting core 26 in a conducting sheath 27 connected to the core at one end and to ground, but not resonant to the generator frequency. The mixed oscillations are derived from the anode 9 of the valve 8. Loose coupling of the generator with the mixer and of the aerial with the mixer is obtained.
Patent GB-193682-A (GB)
Title: Improvements in poultry feeding devices
IPC: A01K39/012
Filed: 1922-03-01
Abstract: 193,682. Gregson, J., (trading as Gregson Ventilating & Engineering Co.), and Holden, T. March 1, 1922. Feeding-appliances for animals.- In a poultryfeeder of the type having a hopper A from which the food is delivered by the movement of a rod C carrying a bait box F and is distributed by a spreader E, the rod C is suspended from a wire B depending below the hopper. The rod is so suspended, for example by means of a slot or aperture, that it can oscillate in any direction. The disc D carried by the rod C forms a closure for the hopper outlet and is adjustable by means of a screw-thread c. The legs A<1> are telescopic.
Patent GB-838930-A (GB)
Title: Lighting and signalling systems for automotive vehicles
Inventor: HOLLINS JESSE RICHARD
IPC: B60Q1/38
Filed: 1957-02-22
Abstract: 838,930. Vehicle signalling systems. SIGNAL STAT CORPORATION. Feb. 22, 1957, No. 6019/57. Class 118 (2). [Also in Groups XXXV and XXXVII] A lighting and signalling system for vehicles, which provides continuous flashing of the direction lamps by means of a separate flasher unit, is controlled by a combination switch comprising an insulated rotatable drum 15 having four or more positions and a corresponding number of sets of pegs mounted in two conductive groups, which are brought into contact with terminals 31<1>-38<1> and 41<1>-46<1> by a knob 20 having an inset lamp FP. In the central position, the stop lamps SL are controlled by a brake-operated switch BS, and signal lamps LF, RF, LR, RR are illuminated through a flasher unit FL-1 and direction switch DS provided that the ignition switch 52, 54 is on. In the second position, the side tail and number plate lamps PL, TL, LP are additionally illuminated directly from the battery, while in a third position the side lamps are replaced by the headlamps HL. In the fourth position the signal lamps together with lamp FP are flashed continuously by means'of a second flasher unit FL-2 and the number plate lamps are illuminated. In another embodiment, a fifth position illuminates the headlamps in addition.
Patent GB-648546-A (GB)
Title: Pumps
IPC: F02M37/18
Filed: 1948-02-27
Abstract: 648,546. Centrifugal pumps. NASH ENGINEERING CO. Feb. 27, 1948, No. 6060. Convention date. July 6, 1943. [Class 110(i)] A centrifugal liquid pump comprises means for centripetally separating the gases entrained in the liquid and conducting them to the inlet of gas pump, and a gas collecting chamber communicating with the liquid pump chamber and encircling the inlet of the liquid pump. A booster pump, Figs 2, 3 and 4, is mounted by a flange 26 to the underside of an aircraft fuel tank, with the inlet strainer 1 projecting within the tank. Gas passes into spaces 12 within hollow impeller blades 23 by way of the clearance between the blades and the side wall 36 and through slots 40. The gas is centrifugally separated from the accompanying liquid, which leaks outwards through the clearance at the outer walls 35, and the gas is forced towards the inner ends of the spaces 12, where it enters a stationary groove 13. The groove 13 also receives gas separating out in the passages between adjacent blades. The gas passes .by way of passages 53, 14, 15, and 16 to the suction chamber 17 of a liquid-ring gas pump. The blades 18 of the gas pump are formed on the rear face of the centrifugal impeller. Sealing liquid is supplied by way of ducts 7, 51, and 52. The gas pump discharges by way of a port 19 and passages 20 and 21 and a pipe 22 to the interior of the tank. The passages 53, 14, 15, and 16 may be replaced or augmented by passages 25 leading from the collecting chambers directly to the suction chamber 17. In a modification, Fig. 6 (not shown), comprising a double-sided impeller, the gas is withdrawn from each side of the impeller by way of separate passages which lead to separate lobes of the gas pump. The rotor of the latter is separate from the centrifugal impeller. In a further embodiment, Figs. 7 and 8, gas enters the hollow spaces 42 within the impeller blades by way of holes 41 and slots 54, and separated liquid leaves by way of holes 43. The gas is removed by way of conduits 45, a stationary annular chamber 46 and a pipe 47 which leads to a gas removal apparatus. Gas in the liquid entering the suction chamber 48 can be collected in a pocket 49 leading by way of a conduit 50 to the chamber 46. This construction facalities priming. Specification 601,516 is referred to.
Patent GB-663927-A (GB)
Title: Improvements in or relating to taps for controlling the flow of liquids
IPC: B67D3/04
Filed: 1949-03-07
Abstract: 663,927. Manually-actuated valves. JACKSON BOILERS, Ltd., and MUSTILL, C. W. March 17, 1949, No. 6088/49. Class 135. In a tap for liquids, the operating handle 14 is pivotally mounted on an extension 12 of the valve element or plunger 7 and is arranged so that when it is moved in a vertical plane in either of two directions, it opens the valve and is self-returning from each direction and when it is moved in a horizontal plane, the valve is caused to remain open when the handle is moved in one direction and to remain closed when the handle is moved in the opposite direction. The handle 14 has two projections 15 co-operating with a screwed cap 9 which provides a fulcrum for one of the projections when the handle is raised or lowered. When the handle is turned in one direction about a vertical axis one of the projections 15 rides up an inclined abutment 16 formed on the cap 9 as far as a stop 17 and remains in its position of adjustment. The cap 9 carries a pivoted latch 10 engaging a slot 11 in the tap body 1. The valve plunger 7 has a valve head 6 pressed against a seat 5 on a screwed insert 4 by a spring 8. The inlet passage may be cleared on removing a screwed plug 19. In a modification, the inclined abutment 16 is replaced by a collar with an external quick pitch thread, the collar being slidably but non-rotatably keyed to the valve element. On rotation of the handle the collar engages an abutment on the valve element.
Patent GB-270848-A (GB)
Title: Improvements relating to brooder lamps
IPC: A01K31/20
Filed: 1926-03-04
Abstract: 270,848. Goudge, F. J. March 4, 1926. Air and waste gases, moistening; oil stores.- A hurricane lamp is adapted to be used in a brooder for chicken rearing by replacing the usual glass chimney by a metal chimney A partly surrounded by a water container B from which vapour escapes through an aperture at the top. The metal chimney is provided with a mica window E, and the aperture is provided with a lip to facilitate filling. Specifications 187,440 and 210,976, [both in Class 5 (ii), Housing &c. animals], are referred to.
Patent GB-642706-A (GB)
Title: Metal-cutting, grinding and like machine tools
IPC: B23Q1/01
Filed: 1946-02-28
Abstract: 642,706. Planing ; milling - machines. ENGLER, W. Feb. 28, 1946, No. 6310. Convention date, Feb. 28, 1945. [Class 83 (iii)] [Also in Group XXIII] A planing, milling, &c. machine comprises a work-table 4 abutting and rigidly held between the side members 2, 3 of a substantially rectangular, rigid frame, and a tool-mounting 8 movable lengthwise and substantially in the centre vertical plane of the top beam 7 of the frame. The table 4 is fed between strokes of the tool and is adjusted vertically by a screw 5. Alternatively, the base 1 constitutes the worktable. The beam 7 may be fixed. The toolmounting 8 may be reciprocated by a hydraulically-driven rack and may enter recesses 6 in the side members to traverse the tool completely along the table.
Patent GB-211717-A (GB)
Title: Improved means for separating liquids of different specific gravities
IPC: B01D17/02
Filed: 1923-03-05
Abstract: 211,717. Knight, R. C., and Smith, H. R. March 5, 1923. Separating by gravity.-Apparatus for separating liquids of different specific gravities, such as oil and water, comprises a U-shaped conduit of such a depth that the oil separating in one leg a is able to ascend against the downward flow of mixed liquid from an inlet c. The water rises up the leg b which terminates in an adjustable bell-mout,h g in an observation trap h. An oil overflow d is separated from the inlet c by a plate e. A heating coil n and draw-off cocks r may be provided. The trap h contains a wire gauze scrubber j and the water flows away under a baffle m. Compressed air may be introduced into the leg a to assist the separation of the liquids. The U-shaped conduit may be replaced by two ducts one within the other, the ducts being in communication at the bottom. The outer duct may be double-walled so that an annular space, which may serve as an observation trap to receive one of the liquids, is formed between the inner duct and the inner wall of the outer duct. When applied to an oil-tank vessel, the apparatus may be arranged in the coffer dam and the U-shaped conduit extend vertically from the deck to the bottom of the ship. According to the Provisional Specification a non-return valve may be provided at or near the bottom of the conduit.
Patent GB-374034-A (GB)
Title: Improvements in or relating to motion picture film editing or examining machines
IPC: G03B21/32
Filed: 1931-02-28
Abstract: 374,034. Kinematograph apparatus. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Mallina, R. F.; 777. West End Avenue, New York, U.S.A.) Feb. 28, 1931, No. 6326. Convention date, March 1, 1930. [Class 97 (i).] Apparatus enabling a number of films to be viewed together, so as to facilitate editing, comprises a number of known machines 30 .. 34, each comprising a viewing lens 21 ..25, arranged on an arcuate frame 2 with the axes of the lenses directed to the centre of the arc. The machines may be driven in synchronism by a motor 51 through a belt 52, shafts 53, 56, 57 having universal joints 40 .. 47, and gear trains, and the speed and direction of drive may be varied by adjusting the motor brushes through a lever 55. A swivel chair may be provided mounted in such position that the head of the operator is at or near the centre of the arc. One of the machines may carry a sound unit and spools for a separate sound film, and the operator may listen to the sound effects by the use of a head receiver 60 and an amplifier 54.
Patent GB-1306103-A (GB)
IPC: F16L47/10
Filed: 1970-02-11
Abstract: 1306103 Pipe couplings; joint-making packing TREFIMETAUX GP 11 Feb 1970 [13 Feb 1969] 6485/70 Headings F2B and F2G Two rings d 1 , d 2  of synthetic plastics are joined together to form a trapezoidal groove e, containing an approximately triangular crosssection gasket f with a flat base and a rounded apex. The resultant seal is used in a pipe joint as shown with the outer diameters of the rings d 1 , d 2  attached to the inside of the outer pipe a1. The seals may be utilized at each end of an external sleeve surrounding two pipes, Fig. 5 (not shown), or be adapted with the gasket f sealing against the outer pipe al, Fig. 4 (not shown). The rings d 1 , d 2  are of polyvinyl chloride, polystyrene, or acrylonitrile-butadienestyrene, and the gasket f is of synthetic rubber.
Patent GB-247027-A (GB)
Title: Improvements in and relating to electron discharge tubes
IPC: H01J19/42
Filed: 1925-03-10
Abstract: 247,027. Feeny, V. F., (Magnavox Co.). March 10, 1925. Vacuum tubes. -A control electrode consists of a thin plate 12 with one or more slots having toothed or indented edges between which the limbs of the cathode filament 13 are situated. The teeth 15 at the edges of the slots may be spread laterally; exactly co-planar arrangement of the control electrode and filament is unnecessary. The filament, which may have an inverted V-form, may be slightly twisted by a wide spring hook at its apex, or the limbs of the control electrode may be slightly staggered. In a modification, there are two serrated edges on each side of a filament limb. The anode consists of two plates 11.
Patent GB-470585-A (GB)
Title: Improvements in extrusion moulding machines for the manufacture of pellets
IPC: B30B11/22
Filed: 1936-03-04
Abstract: 470,585. Extrusion-moulding machines. SIZER, A. W. March 4, 1936, No. 6514. [Class S7(ii)] In an extrusion - moulding machine for forming pellets wherein material is extruded by a worm 1 through perforations 3 in a dieplate 4 and severed on the delivery side of the die-plate, a number of knives are disposed within a minor proportion of the area of the die to sever the material a number of times during each complete extrusion impulse of the worm through a given perforation. The knives are arranged in a rotary cutting element 5 provided adjacent the die-plate, and comprising one or more blade segments 12, 13 according as one or more starts are provided on the worm. Each segment is formed with two or more blades 15a, 15b. For a single start worm there will be one segment having two or more angularly spaced blades. The blades in any one segment are disposed within 180‹ of arc for each start of the worm.
Patent GB-549578-A (GB)
Title: Improvements in or relating to electric fuses
IPC: H01H85/044
Filed: 1941-05-21
Abstract: 549,578. Fusible cut-outs. ASTBURY, H., and CROMPTON PARKINSON, Ltd. May 21, 1941, No. 6541. [Class 38 (i)] One or more fusible elements 22 are enclosed in grooves in an insulating carrier 28 made of a material containing urea formaldehyde that evolves arc-extinguishing gases, and may be embedded in the grooves in a powder or a cement containing urea formaldehyde. A suitable powder filling consists of urea formaldehyde mixed with quartz sand, and a suitable cement consists of urea formaldehyde resin in liquid form with a hardening agent. The groove may be of sinuous form or it may be helical on the surface of a cylindrical carrier. A high-resistance wire may be coiled or folded in the groove, or a lowresistance strip may have portions 27 of reduced cross section, the groove being formed to fit. Where perforations are formed in the strip a boss 29 may protrude from the bottom of the groove into each perforation. The ends of the fusible elements are attached to transverse strips 30 secured by rivets 25 with shoulders to engage the strips. Grooves may be formed in opposite faces of a flat carrier, and several carriers may be superposed, the rivets 25 passing through the end strips of the fuses to connect them in parallel. The superposed carriers with cover plates 47, 48 may form a prismatic or cylindrical structure to which end caps 50 with terminal brackets 55 are fitted. A vent in the cover plate is covered with paper &c. which is destroyed by the blowing of the fuse to act as an indicator.
Patent GB-411611-A (GB)
Title: An improved process for producing yeast and spirit from sugarcontaining liquids, more particularly molasses
IPC: C12N1/16
Filed: 1933-03-03
Abstract: In a process of obtaining yeast and alcohol from mashes containing sugar wherein the nutrient and air are added in individual phases depending upon the yeast growth, the period of working is divided up into short time intervals, for example, of from fifteen minutes to three hours, and amounts of air and molasses are supplied in each interval which are substantially the same as the quantity which would have to be supplied over that interval to secure strict accordance with the exponential growth curve, the air supply being limited to not more than ten times the quantity of mash to be fermented, and the aeration being effected with air in finely divided form.  An example is given, the calculation of the amounts of molasses and of air supplied in each interval being explained in detail.
Patent GB-855797-A (GB)
Title: Improvements in or relating to liquid spray arrangements
Inventor: REISS AUGUST
IPC: D21F1/34
Filed: 1957-02-27
Abstract: 855,797. Liquid spraying apparatus. REISS ENGINEERING CO. Ltd. Jan. 22, 1958 [Feb. 27, 1957], No. 6578/57. Class 96. [Also in Group XXIX] A liquid spray apparatus for use in paper making, e.g. in conjunction with Foudrinier machines, strainers, felts, drums, moving wires, comprises a spray nozzle 5 connected through an adapter 3 to a spray head 2 which slides in a guide comprising consisting of a tube 1 having a slot 4 through which adapter 3 extends. A supply hose 6 connected to the spray head 2 is also guided in the tube 1 and extends into a housing 11 to engage between the concave cooperating faces of friction drive rollers 12 driven by an electric motor 13 acting through a reduction gear 14. Two adjustable reversing switches 16 operable by a stop 17 riding on a screwthreaded spindle 18 rotatable by motor 13, cause periodic reversal of the motor so that head 2 moves to and fro in the tube 1 whilst liquid, which may contain added chemicals is sprayed through the nozzle 5. Other drive mechanisms may be used, e.g. intermittent drives, and several spray nozzles may be provided, with additional spray heads, if required, all supplied by the same hose which may be of rubber, plastic nylon, fibre, or flexible metal. Other alternatives specified are mechanical reversing means comprises in the reduction gear and actuated by relays and the friction rollers 12 may engage and drive a tube connected to and extending from the spray head in the general line of the supply hose.
Patent GB-1451521-A (GB)
Title: Record player having an automatically releasable turntable
IPC: G11B3/60
Filed: 1974-02-13
Abstract: 1451521 Turntable THOMSON-BRANDT 13 Feb 1974 [16 Feb 1973] 6645/74 Heading G5R Turntable 1 is prevented in normal use from being removed from its spindle by a spring 3 which extends over an abutment member 5 formed integral with the table and the table is removed when required by being lifted and then rotated so that a cam 11 on the abutment member 5 moves the spring 3 outwardly to the edge of the member. The base of the abutment member is formed with a bevel which moves the spring to the periphery of the member as the turntable is replaced, the spring then returning to its locking position over the abutment member.
Patent GB-219618-A (GB)
Title: An improved metal bottle for knotting and the like material
IPC: B44D3/12
Filed: 1924-03-15
Abstract: 219,618. Caldwell, W., and Waddell, B. March 15, 1924. Cans; brushes, scrapers for.-A metal bottle for knotting and like material, of tapered form has a corespondingly-tapered cover 3 apertured to hold tightly a brush 7, the body of the bottle being fitted near the mouth with a tapered annular washer 5 adapted to serve as a scraper for the brush and also serving to prevent spilling of the contents.
Patent GB-625949-A (GB)
Title: Synthesis of ª‡-acylamido-ª‰, ª‰-dimethylacrylic acids and esters thereof
Filed: 1947-03-10
Abstract: a -Acylamido-b  : b -dimethylacrylic acids and esters thereof are manufactured by treating a  - amino - b  - methoxyisovaleric acid with an aqueous solution of an alkali metal salt of an aliphatic carboxylic acid (e.g. sodium acetate or potassium propionate) and an aliphatic carboxylic acid anhydride (e.g. acetic or propionic anhydride), and, if desired, reacting the product with an aliphatic alcohol, containing up to 4 carbon atoms in the molecule, in the presence of a mineral acid catalyst (e.g. hydrogen bromide or chloride).  The esters yield dl-penicillamine on treatment with hydrogen sulphide, preferably in the presence of an alkali or alkaline - earth metal alcoholate.  Examples describe the preparation of a -acetyl-amino-b  : b -dimethylacrylic acid and its methyl (or ethyl, propyl, isopropyl or butyl) ester.  a -Amino-b -methoxyisovaleric acid is obtainable by reacting dimethylacrylic acid with mercuric acetate in methanol to produce a compound of the formula <FORM:0625949/IV (b)/1> which is brominated in aqueous potassium bromide solution to form a -bromo-b -methoxyisovaleric acid and the bromine atom is replaced by an amino group by the action of aqueous ammonium hydroxide.  The Specification as open to inspection under Sect. 91 comprises also a reference to aralkyl esters of the a -acylamido-b  : b -dimethylacrylic acids and to products in which the acylamido group contains an aryl or aralkyl radical.  This subject-matter does not appear in the Specification as accepted.