baber/WOPTO huggingface dataset:
Patent GB-1424926-A (GB)
Title: Refrigerated display case
IPC: F25D17/08
Filed: 1973-11-14
Abstract: 1424926 Display cases EMHART CORP 14 Nov 1973 [4 May 1973] 52769/73 Heading F4H An open-fronted refrigerated display case includes means for establishing across the access opening an air curtain having a plurality of layers of air. The innermost layer, which is formed by air passing through an evaporator bypass passage 46, is at a higher relative temperature than the adjacent air layer. In the embodiment shown, layer 54 is at between 35-40 F., layer 56 between 20-30 F., layer 58 between 40-45 F. and layer 60 at ambient. The shelves 12 are spaced from the rear wall or rear door of the display case. In operation, air entering the bottom plenum chamber through inlets 20, flows along vertically extendingpassages 32 adjacent the rear sliding doors 18 to a fan impeller 36.
Patent GB-1533870-A (GB)
Title: Illuminators for use in copying machines
IPC: G03B27/54
Filed: 1975-12-30
Abstract: 1533870 Lamps XEROX CORP 30 Dec 1975 53121/75 Heading F4R A lamp for use in a copying machine comprises an elongate envelope 10 the inwardly light-directing surfaces of which are diffusedly reflective, the envelope having an elongate window 11 which is wider at its ends than at its centre and containing at least one compact light source 12 at a central position.
Patent GB-1325798-A (GB)
Title: Derivatives of 2,2-anhydro-ara-cytidine
IPC: C07H19/06
Filed: 1971-08-17
Abstract: 1325798 Substituted ara-cytidines UPJOHN CO 17 Aug 1971 [24 Sept 1970] 53277/72 Divided out of 1325797 Heading C2C [Also in Division A5] Novel ara-cytidines of the general formula wherein X- is the conjugate base of a strong acid and R is a straight or branched chain aliphatic or alicyclic radical containing 1 to 20 carbon atoms, a monocyclic or bicyclic aromatic radical containing 6 to 20 carbon atoms, a monocyclic heterocyclic radical containing 4 to 10 carbon atoms, an araliphatic radical containing 7 to 12 carbon atoms, cage-type hydrocarbon radicals containing from 7 to 20 carbon atoms (optionally substituted by hydroxy, carboxy, nitro, mercapto and C 1-20  alkoxy) are prepared by acylating at the 5<SP>1</SP>-O-position ara-cytidines of the general formula and optionally including the further step of hydrolysing the 2,2<SP>1</SP>-anhydro bond in the resulting compound of Formula I to form aracytidines of general formula
Patent GB-1243657-A (GB)
Title: Improvements in and relating to rotating field motors for single-phase operation
IPC: H02K29/00
Filed: 1968-11-11
Abstract: 1,243,657. Electric motors; control of A.C. motors. THRICE-TITAN A.S. 11 Nov., 1968 [10 Nov., 1967], No. 53309/68. Headings H2A and H2J. A simple phase rotating field motor comprises at least two pairs of stator windings. e.g. 1, and 2, 2<SP>1</SP>, Fig. 1, each winding having a series connected controllable conductor element, e.g. 4, 4<SP>1</SP>, such as a thyristor, transistor or thyratron, all of the series connected windings and conductor elements being parallel connected to the supply, and in use the conductor elements are each controlled to conduct for a period equal to or less than a half period of the A.C. supply so as to produce an approximately rotating field. By varying the turn-on time of the conductor elements rotating fields of a variety of speeds may be obtained, the field being either continuous, Fig. 2, or intermittent, Figs. 3, 6 (both not shown). To form a better rotating field the turn-on times of conductor elements in adjacent winding pairs, e.g. 4, 5, may overlap, as shown or, for a fixed speed motor, the m.m.f.'s produced by the different windings may be equalized, either by forming more turns on those windings which conduct at points on the voltage cycle remote from the peak, or by forming those windings which conduct at the peak of thinner wire than the other windings. Each winding, in any of the above embodiments, may be divided into two parts, the controllable conductor element being connected between the two parts.
Patent GB-1397485-A (GB)
Title: Tetrahedral containers and a method of manufacturing  such containers
IPC: B65B9/20
Filed: 1973-11-16
Abstract: 1397485 Tetrahedral packages S IZUMI 16 Nov 1973 [16 Nov 1972] 53426/73 Headings B8P and B8C A tetrahedral container for fluid or semifluid materials comprises a web of transparent, flexible film folded into a tube with marginal portions sealed together to form an outwardly extending fin 1, an end of the tube being heat sealed with the adjacent end 1a of the fin 1 flattened against the tube and lying centrally of the end seam 2; after filling the container, the other end of the tube is heat sealed in a direction transversely of the seam 2 so that the end 1b of the fin 1 lies at one end of the seam 3.
Patent GB-1031735-A (GB)
Title: Improvements in or relating to hydraulic pumps and motors
IPC: F01B3/00
Filed: 1963-01-08
Abstract: 1,031,735. Hydrostatic transmissions. C. VAN DER LELY N.V. Jan. 8, 1963 [Oct. 11, 1962], No. 53729/65. Divided out of 1,031,731. Heading F2C. [Also in Division F1 In a pump or motor for a hydrostatic transmission, comprising a relatively rotatable cylinder block and valve plate, recesses 75 to 81 are provided in the cylinder block face and cooperate with recesses in the valve plate face (Fig. 4, not shown), the valve plate recesses being supplied with liquid from the valve plate kidney ports to provide hydraulic balancing, and recesses 75 to 81 beng shaped as shown to reduce the risk of the recesses being brought into communication with each other in the event of scratching of the cylinder block surface. Arcuate leakage grooves are formed in the valve plate surface between the recesses and the kidney ports, the ends of the grooves being connected by straight, relatively narrow channels. A leakage-collecting recess is provided at the centre of the valve plate surface.
Patent GB-1466805-A (GB)
Title: Impingement baffle equipped filter
IPC: B01D29/11
Filed: 1974-12-12
Abstract: 1466805 Filters CATERPILLAR TRACTOR CO 12 Dec 1974 [26 Dec 1973] 53832/74 Heading B1D Filter 10 is provided with cylindrical baffle 24 to prevent direct impingement of fluid entering inlet 12, on paper filter element 16. As shown the filter has a spring-loaded bypass valve 28, which opens when the filter element 16 clogs, the entering fluid then passing from chamber 14 through openings 26 in baffle 24 to central bore 20. The baffle 24 is connected to cover 23, e.g. by welding, and the cover 23 is bolted onto housing 11.
Patent GB-1364118-A (GB)
Title: Prefabricated deck elemenst of reinforced concrete
IPC: E04B5/02
Filed: 1971-11-22
Abstract: 1364118 Concrete floor slabs LEMMING PEDERSEN OG ERIKSSON RADGIVENDE INGENIORER AS 22 Nov 1971 [27 Nov 1970] 54045/71 Heading E1W A precast concrete slab for use in forming elevated floors has a grid of stiffening ribs 2, 3, edge ribs 2 of adjacent slabs together forming a composite rib having the same cross-sectional area as that of an intermediate rib 3. Some of the intermediate ribs may have longitudinal axial slots 17 therein, which slots extend up through the slab, and allow jointing of, e.g. partitions, and some of the edge ribs may be recessed, as at 15, to provide a similar facility. Adjacent slabs are connected together by suitable cast-in-situ material, and may be initially bolted together, Fig. 2 (not shown). The grid spaces 4 are rectangular, preferably square, and the slabs may be supported at rib intersections or, e.g. by a column with a "cassette" head, Fig. 6 (not shown), the head (19) entering one of the grid spaces.
Patent GB-1380193-A (GB)
Title: Cyclohexane derivative
IPC: A23L27/20
Filed: 1972-01-19
Abstract: 1380193 Trimethylcyclohexenyl acetate FIRMENICH SA 19 Jan 1972 [11 Jan 1972] 54743/73 Divided out of 1380191 Heading C2C The invention comprises 3,5,5-trimethylcyclohex-3-en-1-yl acetate. The compound may be. prepared by acetylating 3,5,5-trimethylcyclohex-3-en-1-ol.
Patent GB-1328560-A (GB)
Title: Methods of forming glass to metal seals
IPC: H01J5/26
Filed: 1970-11-19
Abstract: 1328560 Glass to metal seals WESTERN ELECTRIC CO Ltd 19 Nov 1970 [25 Nov 1969] 54949/70 Heading C1M [Also in Division H1] A method of forming a seal between one or more metal members 12, 13 and a hard glass member 16 comprises the steps of assembling the members in their desired relative positions, heating them under non-oxidizing conditions in an enclosed vessel, evacuating the vessel and introducing therein, at a pressure below atmospheric, an oxidizing gas while the temperature in the vessel is within the range at which the metal readily oxidizes so as to produce an oxide layer on the metal, flowing a non-oxidizing gas through the vessel to flush out the oxidizing gas and raising the temperature in the vessel to a level such that the glass softens and seals to the metal to form a hermetic seal. Preferably the non-oxidizing gas is nitrogen and the flushing gas is at sufficient pressure to apply holding pressure during sealing. The metal may be molybdenum and oxidation in air is then in the range of 480‹ to 650‹ C. and the sealing temperature is above 700‹ C. The glass used is preferably alkali-metal free and is free from oxidizing agents. As shown with reference to a diode 10, semiconductor chip, or wafer 11 is held in contact between platinum surfaces 14, 15 of molybdenum studs 12, 13 and surrounded by a glass envelope 16, lead wires 17, 18 being secured to the studs 12, 13. A large number of the diodes 10 are assembled in correct alignment by passing the leads 17, 18 in passageways in lower and upper fixtures 24, 25 resting on shelves 21 in an oven 20 with valved conduits 22 and 23 for evacuating and/or passing gas through the oven.
Patent GB-1286896-A (GB)
Title: Gas-glided materials handling devices
Inventor: WILLIAMS ELGIN STANLEY
IPC: B60V3/02
Filed: 1970-11-19
Abstract: 1286896 Gas glided materials handling devices CLARK EQUIPMENT CO 19 Nov 1970 [12 Jan 1970] 54952/70 Heading B7K A gas glided materials handling device has: an inflatable gas pervious pad connected to a supply of gas by a conduit having a first sonic flow restrictor; and a gas capacitor connected through a second sonic flow restrictor to the conduit at a position between the first flow restrictor and the pad, thereby damping oscillations of the pad by providing a constant gas flow thereto. In the embodiment illustrated, the device has four pads 14, 16, 18, 20 supplied with air through respective sonic flow restrictors 50, 52, 54, 56 of respective conduits 42, 44, 46, 48 from a main supply pipe 36, each conduit 42, 44, 46, 48 being connected to a respective capacitor in the form of a chamber 28, 30, 32 or 34 through a respective flow restrictor 66, 68, 70, 72. Sonic flow restrictors 50, 52, 54, 56 provide a constant flow of air to the pads largely independently of the pressure of air in the pads. The chambers 28, 30, 32, 34 are of square cross-section, and have attached to them the peripheries of a top load supporting plate and a bottom plate on which the pads are mounted. The pads each take the form of a perforated disc of air impermeable material, fixed at its extremity and centre to the bottom plate, and inflated with air to form an annular bag, the perforations allowing a film of air to form therebeneath. There may be more than one pad connected to a capacitor.
Patent GB-1275815-A (GB)
Title: Electroradiographic materials
Inventor: REITHEL RAYMOND FRANCIS
IPC: G03G5/08
Filed: 1969-11-11
Abstract: 1275815 Coated products EASTMAN KODAK CO 11 Nov 1969 [12 Nov 1968 (2)] 55171/69 Heading B2E [Also in Divisions Cl and H1] A coating composition containing 30-40 gms tetragonal PbO, 20 gms of a 70:30 styrenebutadiene copolymer and 86.7 gms toluene is coated onto an aluminium foil paper laminate. Many other supports and resin binders are mentioned.
Patent GB-1248603-A (GB)
Title: Improved support framework for partitions
IPC: E04B9/10
Filed: 1969-11-21
Abstract: 1,248,603. Suspended ceilings. LE PANNEAU MAGNETIQUE. 21 Nov., 1968 [22 Nov., 1967], No. 55232/68. Heading E1W. A supporting framework for a suspended ceiling comprises a plurality of C-shaped members each of which has one flat surface 2 to which panels may be fixed and each of which is suspended from a building element 6 by a locking member 10 comprising a flat plate 14 which jams into position so as to lie at right angles to the longitudinal axis of each C- shaped member. The body part of each locking member is curved and provided with a hook shaped lug 11.
Patent GB-554387-A (GB)
Abstract: 554,387. Ignition systems. HASLER AKTGES. WERKE FUR TELEPHONIE UND PRAZISIONSMECHANIK. Feb. 6, 1942, No. 1577. Convention date, Jan. 3, 1941. [Class 7 (iv)] In a system in which the interrupter is cut out of action when a predetermined engine speed is reached, the interrupter levers 2 are lifted from the interrupter cam 3 at a predetermined engine speed by bosses 5 on a lever 4 fulcrumed on the shaft 1 of the cam. As shown, the lever 4 is connected to the rod 6 of a piston 7 actuated by oil pressure from an engine-driven pump. A cam 18 on the piston rod 6 acts through a rod 17 and a link 16 to open a cock 15, so that oil is conveyed to a brake acting on the magneto drive to delay the timing of the spark given by the magneto to the normal time of the interrupter spark. Owing to a head 19 and spring 20 on the rod 17 the movement of the rod 6, lever 4 and cock 15 takes place with a snap action when a certain oil pressure is reached. The lever 4 &c. can be put out of action by closing a cock 11.
Patent GB-1188394-A (GB)
Title: Treatment of Sewage Sludge
Inventor: ELLERKES ROBERT
IPC: C02F1/52
Filed: 1967-12-06
Abstract: 1,188,394. Treating sewage sludge. FOSECO INTERNATIONAL Ltd. 6 Dec., 1968 [6 Dec., 1967], No. 55471/67. Heading C1C. Sewage sludge is treated with an inorganic coagulating agent, e.g. ferrous sulphate, and an organic flocculating agent, e.g. polyacrylamide, in admixture, as a preliminary step in the dewatering of sewage sludge. Lime may also be added in order to adjust the pH to about 10.
Patent GB-1345635-A (GB)
Title: Dyestuffs containing tetrahalobenzoxazole and benzthiazole  radicals
IPC: C09B1/20
Filed: 1971-12-02
Abstract: 1345635 Pentachlorobenzoxazole BAYER AG 2 Dec 1971 [4 Dec 1970 (2)] 56021/71 Heading C2C [Also in Divisions C3 and C4] Pentachlorobenzoxazole is prepared by chlorination, in the presence of ferrous chloride, of 2-chloro-benzoxazole, in turn prepared from 2-mercaptobenzoxazole and phosgene. 2-Chloro- 4,5,6,7 - tetrabromo - benzoxazole and -benzthiazole are prepared by bromination, in the presence of antimonous chloride, of 2-chlorobenzoxazole and -benzthiazole respectively
Patent GB-1356776-A (GB)
Title: Pneumatically operated dental handpiece
IPC: A61C1/05
Filed: 1972-12-06
Abstract: 1356776 Dental handpiece KALTENBACH & VOIGT 6 Dec 1972 [7 Dec 1971] 56409/72 Heading A5R A dental handpiece having an air-driven motor with associated air supply and air exhaust lines is provided with a circular disc 5 having one or more apertures 6 for varying the speed of the motor, the disc having an extension 7 extending through the handpiece casing 4 in a slot 8 extending over part of the circumference thereof whereby the disc can be rotated to bring the aperture(s) 6 into alignment with the air-supply line 3 or the airexhaust line. The extension 7 engages a recess 10 in the wall of an operating ring 9 on the casing 4, the ring being rotatable and the recess holding the extension immovable in relation thereto. Air-exhaust holes 17 are provided in the casing and communicate with atmosphere through openings 15 in the ring 9 which have damping layers 16 e.g. of felt. A coolant line 18 extends through the handpiece, an arcuate slot being provided in disc 5 to accommodate it. In a modification, the ring 9 is axially displaceable on the casing and the extension 7 engages a recess which is formed as part of a screw-thread.
Patent GB-578095-A (GB)
Abstract: 578,095. Firepots. BRYANT HEATER CO. July 2, 1943, Nos. 10791 and 10792. Convention dates, July 4, 1942. [Class 126] [Also in Group XII] Firepots for furnaces and stoves adapted particularly for burning deep beds of pulverulent solid fuel are lined with blocks having overhanging projections and complementary cavities providing between the faces of the blocks and the fuel bed inclined passages for air and gases. Figs. 1, 2, 4 and 5 show one form of block for lining a cylindrical casing 10. The blocks may be of refractory material or cast metal and are arranged in rows in staggered relation. The sides of the blocks lie in vertical planes passing through the centre of the firepot. The outer sides 11 of the blocks are flat and provide vertical passages between the blocks and outer casing interconnected by passages 12 formed in the blocks. The inner surfaces of the blocks contacting the fuel bed are provided with overhanging projections 15 formed by downwardly and inwardly inclined surfaces 17, 18, 20, 21 the surfaces 17, 21 being completed in adjacent blocks. Beneath the projections undercut surfaces 23, 24, 25, 26 are provided, the surfaces 23, 26 being completed in adjacent blocks. The undercut surfaces have a slope which is less than the angle of repose of the fuel and form with the downwardly inclined surfaces and with the free fuel surfaces 32, Fig. 4, passages for air and gases which are triangular in cross section Fig. 6 shows a modified form of block for circular firepots having downwardly and inwardly inclined surfaces 39, 40 forming over-hanging projections 35, 36 with undercut surfaces 41, 42, 43, 44. Surfaces 39', 40<1> form continuations of surfaces 39, 40 of adjacent blocks. The blocks shown in Fig. 11 and 13 are diamond shape and have a single projection 55 formed by inclined surfaces 58, 59 meeting in a ridge 56. The blocks have a flat surface 66 at the back and are applied to rectangular firepots. From the lower edges 62, 63 of the surfaces 58, 59, extend surfaces 65 which are perpendicular to the flat rear surfaces 66.
Patent GB-1271792-A (GB)
Title: Disposable diaper
Inventor: REBECK ALAN
IPC: A61F13/15
Filed: 1968-05-03
Abstract: 1,271,792. Laminates. JOHNSON & JOHNSON. 2 May, 1969 [3 May, 1968; 16 Dec., 1968] Nos. 21214/68 and 59706/68. Heading B5N. [Also in Division A3] A disposable diaper comprises an absorbent layer 1 of cotton linters or fluffed wood pulp interposed between a waterproof film 2, e.g. polyethylene, and a facing sheet 3 of bundled non-woven fabric, the film 2 and sheet 3 having side portions 3 and 5 overlying the layer 1 along its edges 6 and being embossed or secured together by adhesive, folded inwardly at 9, 10, and then secured by spots of adhesive 8 to sheet 3 and layer 1 such that the diaper can be shaped by folding the ends of the side portions 4, 5 out as in Fig. 3. The layer 1 may be encased in sheets of creped tissue paper and adhesive tape provided at one end of the diaper for securing the ends together about a child.
Patent GB-1292638-A (GB)
Title: Improvements in or relating to arcuate tunnel lining segments
IPC: E21D11/08
Filed: 1969-12-16
Abstract: 1292638 Tunnel linings KINNEAR MOODIE (CONCRETE) Ltd and R J S McBEAN 7 Dec 1970 [16 Dec 1969] 61269/69 Heading E1F A tunnel lining comprises segments each of which has tie members extending circumferentially through it and attached to the tie members of the adjacent segments The tie members are wires or rods and these may be cast in the segments or extend through holes in the segments. Each ring of the lining includes segments 10, 11 and 12 and a key segment 13. One end of each wire or rod is screwed and the other end has a collar, the adjacent wires or rods being interconnected by couplers which are internally screwed at one end and have collar-engaging shoulders at the other, Fig. 13 (not shown). The key segment 13 is secured in position by bolts and internally threaded couplers, Figs. 11 and 14 (not shown). Adjacent rings of the lining may have tongue and groove, knuckle and socket, half-lapped or tapered joints or be connected by dowels, and similar joints may be provided between the segments. The coupling between adjacent rods or wires may be by screwed engagement only, Fig. 21 (not shown), or one end of the couplers may be screwed and the other end have a U- shaped spring clip engaging a groove in the associated wire or rod, Figs. 17 and 18 (not shown). The key segment may have a recess in which is fitted a block secured in position by dowels, Fig. 23 (not shown). Grouting holes are provided for grouting between the bore of the tunnel and its lining and for grouting the rods or wires and their interconnections in position.
Patent GB-617205-A (GB)
Abstract: 617,205. Walls, floors and ceilings. REECE, P. O. July 26, 1946, No. 22360. [Class 20(iv)] A wall, floor or ceiling covering is secured to nailing strips 2 which extend transversely between spaced flanged metal sections 1 on which they are supported by the engagement of the flanges 5 in notches 2<1> and are spaced apart by strips 4 having shoulders 4<1> received in sockets 9 in the nailing strips. In the form shown, the strips 4 have their outer surface flush with that of the strips 2 so as to form auxiliary nailing strips. The shoulders 4<1> may be tapered. Timber ledges may replace the metal sections at the edges of the ceiling &c. and form further auxiliary nailing strips.
Patent GB-646104-A (GB)
Abstract: 646,104. Holders for cartons of toilet &c. paper. NOTTINGHAM, R. P. June 3, 1948, No. 15018. Convention date, June 27, 1947. [Class 18] A holder or container for cartons of interleaved toilet paper, paper towels or other flexible sheets, that can be withdrawn singly through an aperture 12, has accommodation for one or more reserve cartons that drop into operative position automatically and become engaged by supporting studs, screws or prongs 11 when the lowermost, empty, carton is removed through the open bottom 10b. The reserve carton is guided to its new position by one or more projections 14 and the outwardly bowed portion 13 of the container wall which, jointly, cause the downwardly moving package to enter the lower part of the holder at an angle and thereby prevent contact of its lower edge with the prongs, the carton becoming engaged with the prongs when it is restored to vertical position. Removal of the reserve carton may be prevented by a hinged lid having a depending eye for engagement by a spring catch 19 which can be released only by access through holes 17, 18 when the reserve carton has moved to operative position. To prevent insertion of a finger or instrument for removal of a loaded lower carton, the rear wall of the holder may have an inwardly directed tongue 22 and the empty carton may be withdrawn from the prongs 11 for removal by inserting the fingers through opening 12, by providing a tab on the inner rear wall of the carton or by gumming the last sheet to that wall. Alternatively, the holder may be open top and bottom and may have prongs 11a, Fig. 8, to prevent withdrawal of the upper package. The holder may be mounted on a wall or the like by means of screws or by the engagement of hooks 24, Fig. 5, with a bracket 23. The carton is provided with triangular slots to engage the prongs 11 and may have a hole D, Fig. 9 (not shown), to facilitate gripping of the back wall when the carton is to be removed from the prongs. Specification 533,084 is referred to.