baber/WOPTO huggingface dataset:
Patent GB-596119-A (GB)
Title: Improvements in and relating to rotary pumps and engines
IPC: F04C2/344
Filed: 1945-07-19
Abstract: 596,119. Rotary pumps and motors. GLENDINING, P. N., and VARNEY, Ltd., D. July 19, 1945, No. 18544. [Class 110 (ii)] A rotary engine or pump comprises a rotor in the form of an inclined disc or annulus operating in a chamber having inlet and delivery ports between which is located an axially reciprocable slotted vane through the slot of which the annulus rotates or slides. The boss 5 of the rotor is keyed to a shaft 6 and has a peripheral flange 22 in the form of an inclined annulus which co-operates with a slotted vane 11. The latter is of rectangular section and extends within corresponding slots 12 formed in the members 1, 13 of the casing. Suction fluid passes from an inlet bore to annular grooves 8 and thence into the working chambers 27 through grooves 9. Pumped fluid is delivered through grooves 10 to annular grooves 7 and thence to a delivery bore 17. The grooves 7, 8, 9 and 10 are formed on the inner face of each casing member 1, 13, and each pair of annular grooves is united by throughway bores 20, 24 formed respectively in an intermediate ring 18 and the rotor boss 5. The margins of the vane slot 25 are semi-cylindrical to accommodate the reversal of inclination of the inclined annulus during rotation ; alternatively, the margins may be fitted with spring-pressed contact elements which may present a flat or convex face towards the inclined annulus and may have a semicircular seating in order that they rock. Each slot 12 may be in communication with the pressure side of the pump to assist in reciprocation of the vane, and for this purpose a groove or grooves may be provided in the sides of the slot to communicate with the chamber 27. The bores 20 and 24 may be eliminated by providing each casing member with its own inlet and outlet apertures. The inclined annulus may have an extended flat portion at each cf its axial extremes. The recess 3 may accommodate a trunnion-like bearing for the rotor in place of the nut 4. According to the Provisional Specification, each slot 12 is formed in a plug which occupies a cylindrical recess in the casing member.
Patent GB-556415-A (GB)
Title: Improvements in or relating to photographic shutters
IPC: G03B9/22
Filed: 1942-12-31
Abstract: 556,415. Photographic shutters. KODAK, Ltd. Dec. 31, 1942, No. 18612. Convention date, Feb. 17. [Class 98 (i)] In an "everset" photographic shutter the trigger 21 moves, through engaging latch elements 26, 29, a rack 19 meshing with a gear 17 carried by a blade-operating oscillatable mastermember 13, which is thus moved against the action of a spring 14. After a predetermined movement of the trigger the latch elements are disengaged, releasing the master-member 13, which thereupon operates the blades. In the shutter shown, the rack 19 is formed on a rotatably mounted ring 20, the trigger 21 is carried by another rotatable ring, and the latch 26 is pivoted to the trigger and is released from the latch element or shoulder 29 on the ring 20 by the engagement of a cam surface 30 with a pin 31. The master member operates the blade-ring through an arm 10 pivoted to it and engaging, during the return movement of the mastermember, a lug on the blade-ring. In a modification, the trigger is carried by an arm pivoted at the lower part of the shutter casing, and the latch 26 is moved by a pin carried by it and engaging in a cam slot.
Patent GB-207480-A (GB)
Title: Improvements in telephone receivers
IPC: H04R13/02
Filed: 1922-10-18
Abstract: 207,480. Orling, A. Oct. 18, 1922. Addition to 206,259. Magnetic instruments.- In a receiver as claimed in the parent Specification, the pole of the permanent magnet e which is connected to the core d is magnetically insulated from the casing by washers f, g, and the magnetic circuit is completed through the diaphragm band the sheet iron casing by connecting the other pole to the casing by means of an iron washer. The magnet may be semicircular and be wholly within the casing.
Patent GB-925632-A (GB)
Title: Improved glove or mitten
IPC: A41D19/00
Filed: 1961-05-24
Abstract: 925,632. Gloves. O. HALLEN. May 24, 1961, No. 18677/61. Class 141. In a glove or mitten moulded from rubber, polyvinyl chloride &c. with or without a fabric lining, the thumb is moulded substantially parallel with the hand and is connected with the palm along the edges of a slot D-E extending from adjacent the base of the forefinger obliquely across the palm towards the wrist.
Patent GB-938712-A (GB)
Title: Farnesyl acetic esters
Inventor: ADAMI ENRICO
IPC: C07C69/14
Filed: 1961-05-24
Abstract: The invention comprises compounds of general formula A.CH2-COOR in which A represents the farnesyl group (CH3)2.C : CH. <FORM:0938712/IV(a)/1> and R represents an alkyl, alkenyl, alkynyl, cycloalkyl, aryl, aralkyl, aralkenyl or heterocyclyl-alkyl group; and their preparation by reacting a compound of formula A.CH2.CO.X with a compound of formula RY, where X and Y are reactive groups which are capable of reacting together to form the compounds of the invention, in particular by reacting, as appropriate, acid with alcohol or diazoaliphatic compound, anhydride with alcohol, halide with alcohol, salt with halide, sulphate or sulphonate, or ester with alcohol; and by decarboxylation by heating of an acid-ester of formula A.CH(COOH). COOR, optionally prepared by hydrolysis of a diester A.CH.(COOR)2; and by hydrolysis of an ester of formula CH3.CO.CH(A).COOR. Farnesyl-acetic acid derivatives formed are the anhydride with ketene and with acetyl chloride, the chloride formed with thionyl chloride, and the silver salt.  In the Provisional Specification R is defined as an organic group.  Pharmaceutical compositions comprise a compound of the invention as active ingredient in association with a pharmaceutical carrier or excipient.  Forms suitable for oral (tablets, capsules, cachets, syrups, elixirs), topical (ointments), rectal (suppositories) or parenteral (liquids) administration are mentioned and may be as dosage units.  The compounds act against ulcers and other diseases of the gastro-intestinal mucosa.
Patent GB-858597-A (GB)
Title: An improved ultrasonic transducer assembly
Inventor: WRIGHT GERALD HERBERT
IPC: B06B1/02
Filed: 1958-06-12
Abstract: 858,597. Electro - acoustic transducers. ROLLS-ROYCE Ltd. June 3, 1959 [June 12, 1958], No. 18852/58. Class 40 (4). An ultrasonic transducer assembly for converting electrical signals into mechanical vibrations and vice versa comprises a piezo-electric transducer 16 connected to a coaxial cable 35 by a matching unit 20 comprising an air cored transformer. A housing 15 for the transducer screws on to a body portion 10 divided into compartments 11, 12. The barium titanate transducer 16 is carried in a mica insulation ring and is cemented in a bore 17. A slug 19 of tungsten powder and thermoplastic is cemented to the transducer and provides mechanical damping. It also provides one electrical connection between the transducer 16 and matching unit 20, the other connection being through contact 22<SP>1</SP> and the housing 15. The front of the transducer has a quarter wavelength coating of copper or aluminium powder dispersed in thermosetting resin to provide acoustic impedance matching with water. Electrical connection between the matching unit 20 and the inner conductor of the coaxial cable 35 is provided by a resilient contact 29 engaging a contact in an insulating member 27 provided in a projection on one of two discs 23, 24. The outer braid of the cable is split and is soldered to transverse holes 28 in the projection 26. The assembly is made watertight by sealing rings 36 &c. Matching unit.-The matching unit 20 comprises a transformer 32, 33, Fig. 2 and, between the transformer and transducer, a resistor 34 giving critical damping of the oscillatory circuit formed by the capacitance of the transducer and the inductance of the secondary winding 33.
Patent GB-1502349-A (GB)
Title: Equipment for the monitoring of spaces by opto-electrical measuring means
IPC: G08G1/04
Filed: 1975-05-06
Abstract: 1502349 Optical surveillance ERNST LEITZ WETZLAR GmbH 6 May 1975 [27 May 1974] 18903/75 Heading G1A To enable an area e.g. a zebra-crossing complex, a lift entrance Fig. 7 (not shown) or a bank Fig. 8 (not shown) to be optically monitored for the presence of unwanted or unauthorized persons &c., one or more optical correlators are provided, Fig. 6 in which different pupil halves of a viewing lens 1 are analyzed by respective detectors 4a, 4b or 5a, 5b, with the pair of detectors 4a, 4b and 5a, 5b being alternately used by means of beam switching and segmenting prism grating 2 oscillated by mover 7. The outputs of corresponding detectors are differentially cross-connected to give a resultant signal which after phase and amplitude analysis provides a servo-signal for so controlling the mover 7 that the signal becomes zero for the viewed scene. The presence of a person in the scene upsets the analysis and gives an alarm characteristic to the signal. In monitoring a zebra-crossing complex Fig. 1, three such correlators are used, e.g. 11, 12, 13 on a post 14 for monitoring respective areas 11a, 12a, b, c, and the adjacent crossing. A further correlator, (15), Fig. 3 (not shown) may be added to view an area further along the road. This correlator may have filters to particularly detect police cars &c. having blue flashing lights.
Patent GB-1113435-A (GB)
Title: Improvements in or relating to a method of improving the shelf-life of dried plant tissues
Inventor: MEZCIEMS DAVIS JEKABS IVARS
IPC: A23B7/022
Filed: 1964-05-06
Abstract: Dried plant tissue is preserved by mixing 10 to 95% by weight of such tissue in particulate form with 90 to 5% by weight of fat and/or oil, and subjecting the mixture at a temperature at which the fat and/or oil is liquid but does not substantially degrade the plant tissue to alternating pulses of higher and lower pressure, e.g. by the use of a rotating arm or paddle type mixer. The mixing operation is continued during any cooling of the product.  Where none is present in the dried plant tissue, a naturally occurring antioxidant may first be incorporated in the fat and/or oil, e.g. by mixing with a dehydrated herb or spice such as rosemary, sage, turmeric, ginger, onion, garlic, pepper, allspice, cardamon, cassia, cloves, mace, mustard, nutmeg, thyme and parsley.  In the examples dried parsley and dried onion are preserved using beef suet and hardened groundnut oil as fats, and in one example after treating the fat with mixed spices. Other oils and fats specified are olive oil, sunflower oil, and mutton fat.
Patent GB-134375-A (GB)
Title: Improvements in or relating to Walls for Dwelling Houses and other Structures Constructed of Concrete Slabs.
Inventor: MITCHELL ARTHUR
IPC: E04B2/02
Filed: 1918-11-19
Abstract: 134,375. Mitchell, A. Nov. 19, 1918. Walls; double walls.-In cavity walls built of concrete slabs, of the kind in which the slabs are provided with reinforcing wires &c. whose ends pass into the vertical studding cast between the said slabs at the joint so as to connect them together, the walls are composed of slabs 1 having distance ribs 2 cemented together so as to leave a vertical cavity into which the reinforcing- wires 4 project and into which vertical reinforcements 6 and cement 5 are placed to form a concrete post or stud. The ribs 2 instead of being near the edges of the slabs may be placed near the centre so that alternate courses of slabs may break joint.
Patent GB-581663-A (GB)
Title: An improvement in or relating to cyclists' kit and like bags
IPC: B62J9/00
Filed: 1944-10-04
Abstract: 581,663. Cycle bags. BAYCLIFF, Ltd., SUTCLIFFE, F. J., and MILNER, A. Oct. 4, 1944, No. 19059. [Class 133] In a stiffened cycle bag a the ends have fibre board permanently secured thereto and the front, base and back are stiffened by a piece of U-shaped fibre board c, the front leg c<1> being inserted in a pocket d on the inner front side and the rear leg c' detachably secured by a clip e or turn button type fastener on the back.
Patent GB-170067-A (GB)
Title: Improvements in the method and means of mounting lenses
IPC: G02B7/04
Filed: 1920-07-07
Abstract: 170,067. Taylor, W., and Warmisham, A. July 7, 1920. Turning.-In the manufacture of photographic or other lenses of the type comprising a number of components suitably spaced within a mounting as shown in Fig. 4, variations due to errors of manufacture of the components are accommodated by adjusting the abutments in the mounting to positions predetermined from the departures from normal of the thickness, focal length, and diameter of each component. One form of apparatus for effecting these adjustments comprises a work-spindle B mounted on a bed A having a compound. slide rest C provided with a T-slot c<2> to which the required tools (not shown) may be secured. The longitudinal and transverse feed-screws D<1>, D carry multiple stops each comprising a drum E provided with rings e<2> having lateral projections e<6>, and separated by feathered spacing-rings e<3>. A pivoted plate F rotationally adjustable as indicated by a scale f<2> carries a stud f<1> on which are mounted a series of spring-pressed stops H having projecting ends h adapted to engage the projections on the stop rings to set the tools. In operation, each tool is set longitudinally and transversely by means of a stop ring on each of the screws D, D', the scale f<2> being at zero. When either the diameter of the bore of a setting or the position of an abutment is required to differ from normal by any predetermined amount, a corresponding change in the position of the tool is effected by moving the stop H to an extent indicated by the scale f<2>. Alternatively, the transverse adjustment of the tool may be effected by mounting the lens itself between an abutment c<4> secured to the lower member of the transverse rest and a lever L pivoted at l to the upper member of the rest and pivoted at l<1> to a rod l<2> rigidly secured to the feed-nut d and slidably secured to the rest by a bolt l<3>. The arrangement is such that the diametrical variation from normal of the lens produces the required radial variation in the tool setting. Modified arrangements of the stop mechanism and of the tool mountings are mentioned in the Specification.
Patent GB-279934-A (GB)
Title: Improvements in airships
IPC: B64B1/00
Filed: 1926-07-31
Abstract: 279,934. Mammen, L. W. July 31, 1926. Airships; aerostats; planes, arrangement and construction of; propelling; steering and balancing; cars; framework.-An airship is constructed with a trussed framework hull providing a deck and with a roof spaced therefrom and closing the sides but having a through air passage from end to end in which a pilot's cabin is arranged forwardly and one or more state cabins rearwardly. A transverse upward bulge 36, Fig. 3, is formed in the roof, and planes 58, 59 extending across the ship or mounted therein by uprights from the hull and facilitate lifting. The lower plane 59 extends beyond the sides of the ship and is made in sections mounted on a hinge 61 for separate or collective adjustment from the pilot's cabin 47 by cords 62. Gas receptacles 43 are arranged on the roof and enclosed by a cover 37 spaced therefrom and overhanging the sides of the ship, air being admitted to this space by valves 39 and escaping by vents 42. The cabins are ventilated by passages 44 leading into the cover which acts as a parachute on descent of the ship. The hull is constructed so that the stresses of the structure are transmitted to the I-section keel 20, Fig. 11, by T-section trusses and struts secured to a common connector block 28, Fig. 12. A T-slot 29 in the connection engages the longitudinal deck beam 25, Fig. 11, and curved trusses 21, 22, 24, 26, 27, engaging in slots 30 on the polygonal faces and secured by screws engaging holes 31, extend to the keel, deck, roof &c. to stay the parts. The hull is built up of cross ribs 23 passing through slots in the keel and extending up the side to varying extents for supporting the roof, the gas receptacles and the outer cover, and is divided into a number of symmetrically arranged compartments for housing the motors 52, Fig. 3, for the propellers 53 &c., access to which is had through hatches in the deck and stairs from the cabins. Runners 67 are secured to the ribs 23. A rudder 66 is centrally arranged at the rear of the free air passage along the deck. Hinged side wings 63, Fig. 1, are arranged below the projecting cross planes 59<a>, and auxiliary wings or planes 64, 65 are provided at the bow and stern. The gas receptacles communicate through tubes 45 with a collapsable container 46 in the hull into which gas can pass through automatically acting valves on the tubes when a predetermined pressure is attained in the receptacles.
Patent GB-220154-A (GB)
Title: Improvements in apparatus for use in driving staples
IPC: B27F7/19
Filed: 1923-07-26
Abstract: 220,154. Imperial Tobacco Co. (of Great Britain & Ireland), Ltd., and Fry, M. G. July 26, 1923. Stapling.-A stapling-machine, particularly intended for use in securing the members of frames by means of staples of the kind described in Specifications 205,247 and 211,266, [both in Class 89 (ii), Hooks &c.], is arranged to drive two staples simultaneously into work supported on a table 9, which is vertically adjustable by means of screwed rods 22 and gearing 20, 21. The staples are arranged on inclined bars or tracks R removably mounted upon bars 37, which are vertically and laterally adjustable on supports 44. The end staple on each track is supported by a spring-held gate 25, Fig. 5, mounted in the passage 26 of a staple chuck 6 adjustable upon a support 7. Drivers 5 operate in each staple chuck and in their descent first depress the gates 25 and then drive the end staples. One wall 27 of each chuck is removably held in place by spring bolts 28 so that it can yield if the travel of the driver is obstructed by a deformed staple. The drivers 5 are adjustably carried by a head 4, which is reciprocable by rods 16 from cranks 15 on the main shaft 11. The points of the staples are clinched by means of cam-shaped pieces 51 arranged out of alignment and pivoted in an opening 50 in the table 9. These pieces are adapted to be raised at the appropriate time by a bar 53 operated by a snail cam 57 on the shaft 11 through a spring-held pusher-rod 58, arm 56, and bellcrank lever 54.
Patent GB-669988-A (GB)
Title: Improved means for defibrating and grinding paper pulp or other fibrous material
IPC: D21D1/30
Filed: 1948-07-16
Abstract: 669,988. Grinding mills. SVENSKA CELLULOSA AKTIEBOLAGET. July 16, 1948 [July 22, 1947], No. 19199/48. Class 59 [Also in Group VIII] Means for defibrating and grinding paper pulp or other fibrous material comprises a container 3 provided with an inlet 4 and an outlet 5 for the pulp, co-operating defibrating and grinding disc members 1, 2, of which at least one is rotatable, being provided with through-openings 8 for the feeding of the pulp in a substantially axial direction, said defibrating and grinding members consisting exclusively of discs formed by elements 7 acting as knives, said means being characterized by the provision of at least two substantially similar defibrating and grinding discs co-operating with one another, the knife elements of which extend, and the through openings are arranged, from the edge portion of the discs approximately to their centre. One disc 2 may be stationary and one 1 rotatable. Fig. 1, or both, may rotate in opposite directions, Fig. 5. The discs may be concave-convex or conical, Fig. 8, or be formed as shown in Figs. 4, 5.
Patent GB-908218-A (GB)
Title: Non-metallic magnetic materials
Inventor: KENNEY CHRISTOPHER NIGEL
IPC: H01F1/03
Filed: 1960-05-31
Abstract: In a ferrite making process as disclosed in Specification 793,870 one of the starting materials in the hydroxy-oxide of iron defined as a -FeO-(OH) and known as goethite.  In one such process the oxides, hydroxides or carbonates of the metals are dry mixed, placed in an autoclave and wet mixed.  The temperature of the autoclave then being raised to 300 DEG -350 DEG C. and maintained for several hours. Examples of the process include barium ferrite made from hydrated barium hydroxide, nickel ferrite made from nickelous oxide manganese ferrite made from manganous carbonate, manganese nickel ferrite and manganese-nickel-zinc ferrite.  A manganese-nickel-zinc ferrite is described in which the hydroxides of the metals except of iron are made in situ by the action of caustic soda on their salts.  The useful temperature range is 100 DEG -400 DEG C. preferably 300 DEG -350 DEG C. and the useful pressure range is 10-100 Atmospheres.  The effect of variations in water content, reaction time and temperature on the remenance of barium ferrite are disclosed.  Polyvinyl alcohol and glycerine in methanol are referred to as binders.  Specification 793,890 also is referred to.
Patent GB-651035-A (GB)
Title: Improvements relating to optical apparatus
IPC: G02B21/00
Filed: 1948-07-19
Abstract: 651,035. Optical apparatus. DYSON, J., and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd. July 19, 1948, No. 19337. [Class 97 (i)] To increase the working distance between an object and an objective especially for microscopic examination or optical projection an optical system is inserted therebetween comprising a concave reflector placed with its centre of curvature at or near the object and having a central aperture at or beyond which an image of the object is formed by light reflected by the mirror and by a substantially plane half-silvered reflector placed between the mirror and the object. In the microscope shown in Fig. 5, light from the object 5 passes through a cover glass 10 and a plate 4 having a semi-reflecting surface 3 to the concave mirror 1 whence it is reflected to the surface 3 and thence passes through the central aperture 2 of the mirror to form an image adjacent the microscope objective 9. Illumination is supplied by a lamp 12 and semi-reflector 11. The surface of the plate 4 facing the object may be convex to correct spherical aberration and a meniscus 15 concentric with the image of the centre of curvature of the mirror 1 formed by the lens 9 may also serve this purpose. Alternatively the plate 4 may be plane parallel and the illuminating beam be directed to the object by a prism carried by the face of the plate 4 facing the object. Only the peripheral areas of the plate 4 may be reflecting. In the form shown in Fig. 6 the concave mirror 19 and reflecting surface 21 are faces of a glass block 18 placed upon a glass plate 24 bearing a photographic emulsion 23 to be examined by a microscope objective 9, the system forming an image 20 of the emulsion at the aperture of the concave surface 19. All air spaces between the objective 9 and emulsion 23 may be oil filled. In a modification for observing objects in water the block 18 has secured thereto a glass plate having a central outer concave portion concentric with the surface 19, the block being placed in the water with the object at the common centre of curvature of the surfaces. The invention may also be applied to profile projection in which an objective forms a magnified image of the image formed by the concave reflector on a projection screen after reflection in a plane mirror.