baber/WOPTO huggingface dataset:
Patent GB-165989-A (GB)
Title: Improvements in or relating to gas heaters
IPC: F23D14/04
Filed: 1920-04-24
Abstract: 165,989. Lewis, W. I. G. April 24, 1920. Gas lamps primarily for lighting, heating attachments for.-A gas-heater of the type comprising a hollow perforated dome with a gas jet and air inlets at the bottom has an inner ,conical mixing- chamber a<5> and a cylindrical outer chamber a which is closed at the top and has a substantially horizontal flange a<3> at the bottom pierced with burner orifices e. A jar-like fitting f having perforated sides is carried by the flange a<2> externally of the body part a. In a modification, the body part a may have one or more flat sides with pierced flanges and perforated covers as before. Air and gas admitted at inlets c, d are mixed in the part a<5> and heated in the part a, a.nd burn at the orifices e, heat being radiated by the cover f.
Patent GB-105188-A (GB)
Title: Improvements relating to Sash Fasteners.
Inventor: CARTLAND JOHN HOWARD
IPC: E05F11/00
Filed: 1916-08-14
Abstract: 105,188. Cartland, J. H., and Arnold, H. J. Aug. 14, 1916. Fastenings for sliding windows; catches, spring.-A sash fastener comprises two inter-engaging levers a, b pivoted on one sash and adapted to engage stops g, i on the window frame and on the other sash. The levers are released simultaneously by operating the lever a by a handle or cord; but the lever b may be moved independently in one direction by the action thereon of the upper inclined ends of the stops i, so that the upper sash can be raised without releasing the lower sash. The levers are acted upon by a spring m, and their outward motion is limited by a screw-stop n, which may be adjusted so as to keep the levers under the action of the spring m, or so as to allow them to be turned outwards into a position where they are interlocked and remain out of action.
Patent GB-1172804-A (GB)
Title: Asymmetrical Dual Tread Pneumatic Tire.
IPC: B29D30/00
Filed: 1968-03-08
Abstract: 1,172,804. Pneumatic tyres. GENERAL TIRE & RUBBER CO. 8 March, 1968 [14 March, 1967], No. 11507/68. Heading B7C. A pneumatic tyre is provided with a tread 6 comprising tread bands 8, 9 of unequal width separated from each other by a circumferential groove 10, the radius of transverse curvature 15 of tread band 9 being greater than the radius of transverse curvature 16 of tread band 8 and shoulder 14 adjacent band 8 having a greater diameter than shoulder 13 adjacent band 9. The tyre, which may be of radial or cross ply construction, may be provided with zig-zag grooves 17 in each of the tread bands.
Patent GB-866280-A (GB)
Title: Structure for housing or mounting apparatus
Inventor: HARGREAVES BRIAN
IPC: A47B47/02
Filed: 1957-04-09
Abstract: 866,280. Switchgear structures. ASTRAL SWITCHGEAR Ltd. May 14, 1958 [April 9, 1957], No. 11553/57. Class 38 (5). [Also in Group XXXVI] A housing for switchgear or other equipment comprises a number of sections 1 with flanges 1a bolted together to form a vertical series 3. L-section beams 2 are bolted to the flanges of this series and to a second series 4 to secure them in spaced relationship. The edges of the sections are notched at 9 (Fig. 3) so that adjacent edges form a square hole to receive the square shank 8a of a bolt 8 which with a nut (not shown) secures a beam 10 to clamp the edges of adjacent sections. End covers 5 are provided with bolts 6 (Fig. 2) having their heads notched at 6a to locate the edges of the sections 1 where they are cut away at 7.
Patent GB-664561-A (GB)
Title: Improvements relating to apparatus for discharging coke from coke ovens
Inventor: PLANT CECIL RONALD
IPC: C10B41/04
Filed: 1949-05-02
Abstract: 664,561. Photo-electric control systems. SIMON-CARVES, Ltd. April 13, 1950 [May 2, 1949], No. 11616/49. Class 40 (iii). [Also in Group XII] In an improvement in or modification of the safety means for use in discharging coke from coke ovens by means of a ram machine on one side of the oven and a coke guide machine on the other side according to Specification 593,609, the projector lamp a is fitted with a motor-driven disc arranged to interrupt the light beam so as to give approximately 40 pulses per second and the light-sensitive cell d has its anode connected to the positive side of a voltage supply and its cathode connected through a high-resistance R' to earth. The junction between the cathode and the resistance is connected through a condenser C1 to the control grid of a thermionic valve V, the valve anode having a coupling resistance R2 and a condenser C2, the latter having a connection e to the input circuit of an amplifier which may energize a relay enabling the ram motor to be operated. The valve cathode is biased by a resistance R3 and there is a grid leak R4. With this circuit, if the cell receives no light or a steady light, the conductor leading to the grid of the first amplifier valve has the same potential as HT -, but if the cell receives the interrupted beam, the valve V passes on a signal to the amplifier with the result that relay means for enabling the ram motor to come into operation are actuated.
Patent GB-1523978-A (GB)
Title: Adhesive layer for x-ray intensifying screens on polyethylene terephthalate support layers
IPC: G03C1/93
Filed: 1976-03-23
Abstract: 1523978 X-ray intensifying screens AGFAGEVAERT AG 23 March 1976 [26 March 1975] 11626/76 Heading H5R An X-ray intensifying screen comprises a flexible polyethylene terephthalate support layer, an adhesive layer and a fluorescent layer, the adhesive layer comprising a binder which is a polyester or copolyester of isophthalic acid and an aliphatic diol having a molecular weight of at least 4500, and 2 to 35% by weight of sulphonated castor oil, based on the dry weight of binder. The preferred polyester is a copolyester of isophthalic acid, terephthalic acid, ethylene glycol and butane-1,4- diol, but other polyesters incorporating other diols are also specified. The polyester should have an isophthalate content of from 35 to 75% by weight. The sulphonated castor oil is preferably Turkey red oil. The adhesive layer may be made to serve also as a radiation absorbent or reflective layer, by incorporating such pigments as carbon black or titanium dioxide. The adhesive layer may contain a wetting agent. The support layer is from 100 to 250Á thick, and the adhesive layer is 1 to 2Á thick, or, if serving as a reflective or absorbent layer, 10 to 30Á thick. The fluorescent layer comprises pigments such as calcium tungstate in a polymeric binder.
Patent GB-1088541-A (GB)
Title: Improvements in and relating to electrical contact elements and contact assemblies
Inventor: FOOTE DONALD ERNEST
IPC: H01H50/54
Filed: 1964-03-19
Abstract: 1,088,541. Switch contacts. JOHNSON, MATTHEY & CO. Ltd. March 18, 1965 [March 19, 1965], No. 11642/64. Heading H2B. [Also in Division B3] A switch contact comprises contact discs 9, 10 secured to a strip 8 of base metal or only one contact disc 3, 13 may be fitted to form bent or angled elements respectively. In a further embodiment a forked element, Fig. 4b (not shown), may be formed having a contact in each limb. The contact members are preferably made of silver, gold, platinum, palladium or noble metal alloys and the supports are made of steel, copper or a copper-nickel alloy.
Patent GB-381114-A (GB)
Title: Plant for the charging of moulding boxes in stamp moulding
IPC: B28B13/02
Filed: 1932-04-22
Abstract: 381,114. feeding apparatus for granular &c. materials. SCHEIDHAUER & GIESSING AKT.-GES., 42, Bahnhofstrasse, Bonn-on-Rhine, Germany. April 22, 1932, No. 11666. Convention date, April 23, 1931. [Class 59.] Apparatus for feeding material to moulds comprises a tube or shaft 3 which widens downwardly and is situated above a rotary table 5 from which the material is removed by a scraper 7 and conveyed to the mould box. The tube 3 is surmounted by a hopper 2 and is surrounded at its lower end by a tubular rim 4 of greater conicity which is displaceable vertically from the operating position by the lever device 5a to regulate the supply of material. The scraper 7 is also adjustable by the levers 8. The material falls from the table 5, which is driven by an electric motor 6, into a hopper 9 from which it is led by a flexible pipe 10 to the mould 16. The pipe 10 may be counterbalanced by a weight 11 and its mouthpiece 13 may be fixed directly on to a pneumatic stamper 14. In a modification the hopper 9 and tube 10 are replaced by a conveyer band, the end of which can be moved across the mould surface.
Patent GB-212776-A (GB)
Title: Deck chairs and the like
IPC: A47C4/30
Filed: 1923-05-01
Abstract: 212,776. Fuller, E. H. May 1, 1923. Seat bottoms and backs.-The sling for deck chairs and the like is made of laths or rods a and distance pieces b, which may be in the form of wood or other beads or perforated balls, threaded upon wires c, the ends of which are anchored in countersunk holes formed in the cross pieces d, e by forming heads on them. In a modification, a single wire may be employed and led through the holes and along a groove in one of the cross pieces.
Patent GB-1061742-A (GB)
Title: Improvements in or relating to pumping systems for handling fluids in both liquid and gaseous phases
IPC: F24D1/00
Filed: 1964-05-19
Abstract: 1,061,742. Central heating systems. NASH ENGINEERING CO. March 19, 1964 [April 24, 1963], No. 11697/64. Heading F4U. [Also in Division F1] In a heating system steam passes from a line 16 into a radiator 15 and steam-condensate mixture passes from the radiator into a main line 17 wherein the steam separates from the condensate and flows through a by-pass line 23 to the inlet 19 of a two-stage pump 18 (see Division F1). The main line 17 is restricted at 20 to create a head of condensate upstream thereof and thereby provide a smooth and substantially uniform flow of condensate to the pump inlet 19. The pump 18 passes the condensate through a line 26 and storage tank 27 to a boiler, and the steam through a line 25 and a separating chamber 29 to a line 100 having a thermostatically operated vent valve 102 and a check valve 104. The basic suction created by the pump is transmitted back through the by-pass 23 to the radiator 15 and thereby maintains a sufficiently low pressure in the system to maintain a suitably low steam temperature therein. Where the level of the main line 17 is lower than that of the pump inlet 19, a vertical lift tube (see Specification 1,061,743) upstream of the restriction and bypass forms part of the main line 17, in which lift tube the steam of the steam-condensate mixture raises slugs of condensate to a level above that of the pump inlet. In an alternative embodiment, Fig. 12 (not shown), the radiator 15 is replaced by a steam heating coil of a cooker, kettle, platen, mould jacket, dryer, laundry press or the like, the steam separated by the pump being returned to the system between the upstream side of the heating coil and a pressure reducing valve.
Patent GB-1006463-A (GB)
Title: Brazing material assembly
IPC: H01J19/46
Filed: 1963-03-25
Abstract: 1,006,463. Brazing. RADIO CORPORATION OF AMERICA. March 25, 1963 [April 13, 1962], No. 11787/63. Heading B3R. A brazing material assembly comprises a plurality of sources of brazing material and a plurality of relatively small bridge pieces joining the sources to provide an integral assembly. In brazing parts of an electron tube, tubular electrodes 26, 27 and a support 28 are located by cylinders 18, 19 extending from the floor of a cup-shaped jig 10, copper coated steel electrode support flanges 30, 31, 32 are mounted on the electrodes 26, 27 and the support 28 and a ceramic header wafer 37 having sets of three bores 42, 43, 44 and a set of two bores 45 arranged in concentric circles therein is located on a cylindrical insert 20. Molybdenum support and conductive lead-ins 47, 48 coated with iron extend through the molybdenum coated bores into engagement with the flanges 30, 31, 32 and a heating element 51. The lead-ins may be further coated with copper and the bores with iron. The material for brazing the lead-ins to the coated bores is in the form of an assembly 60, Fig. 3, prepared by etching, stamping &c. from a copper sheet and comprises sets of washer-like members 62, 63, 64 and a set of two washer-like members 65, the washers being connected by bridges 68 to form an integral unit. The assembly is placed over the lead-ins with the washers arranged about the bores in the header 37. The washers may fit tightly or with clearance over the lead-ins. The jig is heated in a hydrogen furnace to melt the assembly 60 and break the bridges between the washers, the molten copper being pulled between the lead-ins and the bores; the brazing metal on the flanges also melts and provides joints between the electrodes 26, 27 and support 28 and the flanges and between the flanges and the lead-ins. The brazed assembly is removed from the jig, a sleeve of emissive material is placed over the support 28 and a cup-shaped envelope is soldered to the header 37 in a vacuum furnace at a temperature lower than the previous brazing temperature. To provide a conductive path between a lead-in 47 and the header periphery a molybdenum layer may be provided on the header between the lead-in and periphery.
Patent GB-540630-A (GB)
Title: Negative feedback amplifier
IPC: H03F1/36
Filed: 1940-07-18
Abstract: 540,630. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. July 18, 1940, No. 11830. Convention date, Oct. 12, 1939. [Class 40 (v)] In a multi-stage amplifier having a negative feedback connection between the output and the input the interstage coupling network includes elements giving resonance points at two frequencies where there is a tendency to singing. Fig. 1 shows a network 34, 35, 36 common to the input and output circuits of stages 1 and 3. The coupling network L 1 , L 2 , C 2 , L 3 , C 3  and condenser 42 and leak 45 produce a phase adjustment to prevent singing at frequencies near the cut-off point and slightly above the transmitting range of the amplifier. A shield may surround elements 42, C 2 , L 1 , L 2  and be connected to the junction of L 2 , L,. The coupling network may be introduced into any stage of the amplifier or may be arranged in the negative feedback path or may be divided between these positions. The Specification gives curves showing the gain and phase changes occurring in an amplifier. Specification 514,567 is referred to.
Patent GB-808029-A (GB)
Title: Improvements in and relating to the assembly of electrical components on printed or like circuits
Inventor: CLEWES ANTONY BRASHER
IPC: H05K13/04
Filed: 1956-04-18
Abstract: 808,029. Assembling components on printed circuits and the like. CARR FASTENER CO. Ltd. April 12, 1957 [April 18, 1956], No. 11857/56. Class 83 (2). A method of assembling an electrical component, such as a valve holder a, provided with projecting tags I on to a support panel b having apertures 4 through which the tags pass and a printed or like circuit marked on one face, comprises mounting the component on the panel with its tags projecting through the apertures, bending over each projecting tag to form an acute angle with the support and then operating on the bent portion of the tag to press its outer end into intimate contact with the circuit. The valve-holder is first assembled in a tool 8 which is lowered to pass the tags 1 through the panel and against a bottorri tool having a spring-biased ram 16 with a conical surface 20 which engages the tags and bends them outwardly at an acute angle to the panel, Fig. 2 (not shown). The ram 16 then engages the panel and depresses the spring 17 whereby a surrounding sleeve 14 having a conical face 15 engages the bent tags, forms bights 1a thereon and presses the outer ends of the tags into contact with the circuit. The bottom tool may alternatively be moved. A number of components may be attached simultaneously by a plurality of two-part tools.
Patent GB-242884-A (GB)
Title: Improvements in anti-dazzle devices for the headlights of mechanically propelled vehicles
IPC: F21V11/00
Filed: 1925-07-30
Abstract: 242,884. Spencer, J. A. July 30, 1925. Lantern gratings.-An anti-dazzle device for vehicle and like lamps comprises a series of transverse parallel plates K composed wholly of glass or other suitable vitreous material having their lower surfaces L burnished and their central portions or upper surfaces moulded or formed with veins M of opaque glass or other suitable vitreous material impervious to light so as to deflect upwardly directed rays downwardly. The strips K, which may be corrugated or plane, and inclined upwardly or downwardly, may be secured to or form part of a circular frame E of glass, metal, or other non-vitreous material attached to the front of the lamp as by means of screws J as shown in Fig. 1, or to a bracket mounted on the chassis. Alternatively, the device may be in the form of a coil in which the volutions are horizontal or inclined as shown in Fig. 6.
Patent GB-707152-A (GB)
Title: Improvements in arrangements for controlling the supply of small quantities of liquid
IPC: F16N27/00
Filed: 1951-05-22
Abstract: 707,152. Lubricating. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. May 22, 1951 [June 14, 1950], No. 11967/51. Class 12(3) [Also in Group XXVII] Small quantities of lubricant are supplied intermittently to rocking levers 5 of a I.C. engine by means of the cam shaft 4 which has a segmental cut 12, a duct 13 and a longitudinal groove 14. Oil is fed into the channel 1 for the main bearings, and a bore 2 leads to the cam shaft bearing 3. At each revolution of the shaft 4 a small quantity of oil is passed into the duct 6, the quantity being determined by the circumferential width of the groove 14 and the duration of the covering of the duct 6 by the said groove. Any inaccuracy in the drilling of the ducts 2 and 6 is compensated for by, respectively, the length and width of the segment 12 and the axial length of the groove 14.
Patent GB-479107-A (GB)
Title: Improved recoil damping device for firearms
IPC: F41A21/36
Filed: 1936-04-28
Abstract: 479,107. Gun muzzle-attachments for checking recoil. CZARNECKI, S. April 28, 1936, No. 12050. Void. Convention date, March 23. [Class 92 (ii)] Relates to muzzle brakes of the kind comprising lateral passages 20 of convergentdivergent form through which the gun gases following the projectile escape and thereby exert a forward reaction on the gun to check recoil. According to the invention, the passages are arranged symmetrically in longitudinal radial planes and the rear surfaces x, y, z of the passages are so inclined as to deflect the gases in conical sheets clear of the gunner. In the form shown in Fig. 1, a number of nested members 6, 7, shown separately in Fig. 5, are arranged within a sleeve 5 screwed to a member 2 itself screwed to the gun-muzzle 1. The sleeve is closed by a plug 10 and lateral gasescape passages are thus provided between the members 2, 6, 7, 10, the passages being radial ones formed by fins such as 17 which act as distance pieces between the members 2, 6, 7. The passages are completed by registering radial slots in the sleeve 5. The passages shown in Fig. 1 include curved reaction surfaces 18 formed by surfaces of revolution round the axis XX. Figs. 6 and 7 show modified shapes for the gas-escape passages. The external sleeve 5 may be dispensed with, in which case the members 2, 6, 7 are screwed together.
Patent GB-1506328-A (GB)
Title: Processes for the cyclization of unsaturated alcohols and the heterocyclic compounds obtainable thereby
IPC: C07D309/04
Filed: 1976-03-25
Abstract: 1506328 Cyclization of unsaturated alcohols ANIC SpA 25 March 1976 [27 March 1975 27 Nov 1975] 12145/76 Heading C2C A process for the cyclization of a gammadelta, delta-epsilon or epsilon-zeta unsaturated alcohol (defined) comprises contacting the alcohol with a cationic ion-exchange resin to give a tetrahydrofuran or tetrahydropyran derivative. The alcohol may be dissolved in an inert solvent and the process is suitably carried out at a temperature of from 20 to 180 C., consistent with the stability of the resin. Examples describe the cyclization. of 3,7-dimethyl-3-hydroxy-oct-6-enenitrile to give the novel products 2,6,6-trimethyl-2- cyanomethyl-tetrahydropyran and 2-methyl-2- cyanomethyl - 5 - isopropyl - tetrahydrofuran having the formulae
Patent GB-470520-A (GB)
Title: Jacking means for vehicles
IPC: B60S9/10
Filed: 1936-04-29
Abstract: 470,520. Jacking - apparatus on vehicles. LAGONDA MOTORS, Ltd., and BENTLEY, W. O. April 29, 1936, No. 12161. [Class 79 (iii)] A jacking attachment for an independently sprung or connected road-wheel on a motor vehicle comprises a jack body carried by the chassis frame and movable elements, one of which is adapted to engage the underside of a member connecting the wheel to the frame whilst the other engages the ground. In the form shown, for use with a steerable wheel 2 connected to the frame by an upper link or spring 3 and a lower arm 11 secured to a torsion spring 12, a hydraulic jack comprising a pair of coaxial communicating cylinders 4, 5 with a common inlet 15, is secured to a frame bracket 6, the plungers 7, 8 being adapted respectively to engage the ground and the underside of the link 3. By regulating the relative diameters of the cylinders and the point of engagement with the link 3, the wheel may be raised with or in advance of the chassis frame as desired.
Patent GB-561082-A (GB)
Title: Improvements in straight-bar knitting machines
IPC: D04B15/64
Filed: 1942-08-29
Abstract: 561,082. Knitting-machines. BLACKBURN & SONS, Ltd., G., START, H. W., and START, E. Aug. 29, 1942; No. 12194. [Class 74 (ii)] A splicing or plating thread carrier T of a straight - bar machine is positively reciprocated by the engagement of levers H, J pivotally mounted on a member G attached to the carrier T with recesses A<1>, A<2> in a reciprocating bar A. The bar A is connected to the usual slur .bar, and the amplitude of the movement of the carrier T with the bar A is determined by stops L, M mounted upon lengthways adjustable bars O, P. A spring, not shown, serves to press the engaging end of each lever H, J into the corresponding recess A<1>, A<2>, and the lever is freed from its recess by the engagement of its free end H<1>, J<1> with a cam surface Q on the corresponding stop L, M. To prevent rebound of the carrier T on meeting the stops, spring pressed detents R are mounted upon the stops to engage and hold projections H<2>, J<2> on the levers. A spring blade having a frictional lining is mounted upon the member G to engage the bar A to prevent undue movement of the carrier upon engagement of a lever H, J with its recess.
Patent GB-1042209-A (GB)
Title: New n-substituted pyridobenzodiazepine derivatives and their preparation
IPC: C07D471/04
Filed: 1965-03-24
Abstract: Compounds of the general formula <FORM:1042209/C2/1> (wherein R and R1 are the same or different and each represents a hydrogen or halogen atom or a C1- 5 alkyl, C1- 5 alkoxy or trifluoromethyl group, or R and R1 together represent a methylenedioxy group) and their acid addition salts are prepared by reducing a compound of the formula <FORM:1042209/C2/2> optionally followed by salt formation.  The compounds of the invention are hypotensives, diuretics, antiphlogistics and analgesics and may be administered in the form of pharmaceutical preparations containing them together with a carrier.