baber/WOPTO huggingface dataset:
Patent GB-115637-A (GB)
IPC: F16T1/30
Abstract: 115,637. Gebhardt, W. Feb. 27, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Steam-traps.-A steam-trap of the kind in which the discharge valve opens in the direction of the outflow has the valve member balanced as regards the pressure of the fluid in the trap. Fig. 1 shows a float-actuated trap in which the open float 4 is connected by a spindle 23 to a balancing- piston 22 subject to fluid pressure admitted through ports 27 and bearing against the valve spindle 19. The valve member 18 is guided by a spider 20 working in a chamber fitted with a deflector 28 adapted to reverse the flow of fluid passing the valve. The valve may be raised by hand by means of a handle 31 on a spindle 33 provided with a crank 29 adapted to engage a disk 32 on the valve spindle.
Patent GB-1160775-A (GB)
Title: Heater
Inventor: JAMES JUNE CYNTHIA
IPC: A01K31/19
Filed: 1967-03-13
Abstract: 1,160,775. Air heaters. J. C. JAMES. 18 March, 1968 [13 March, 1967], No. 11652/67. Headings F4S and F4W. An air heater for use as a poultry heater comprises a base plate 10, a gas, oil or electric heating element 12 centrally supported on the plate, a cowl 20 carried on the plate and enclosing the element, which cowl has an imperforate dome 22 carried on an apertured peripheral wall 21 and which is located in a ring 25 carried on the base plate, an apertured light shield 29 surrounding and spaced from the wall and a guard 31 having a mesh wall 34 and an upper central aperture 35 to allow warm air to pass therethrough, which guard is designed to fit over the plate and enclose but not touch the cowl and light shield. The base plate and cowl are of incombustible refractory material e.g. asbestos. As shown, the heating element comprises a gas burner, the supply of gas thereto being controlled by a thermostatic temperature valve 16 mounted on an arm 17 extending obliquely upwards and outwards from the edge of the base plate. A curved baffle plate 24 is suspended above the heating element.
Patent GB-1004736-A (GB)
Title: Improvements relating to roof structures
IPC: E04D3/35
Filed: 1962-03-27
Abstract: 1,004,736. Roofs. R. T. COLE. March 26, 1963 [March 27, 1962], No. 11658/62. Heading E1V. A roof structure comprises trapezoidalsectioned planks 13, having upper and lower stressed metal skins 14 and 15 of e.g. aluminium containing a light-weight core of e.g. expanded polystyrene, and spanning between adjacent parallel I-beams 10. In the embodiment of Fig. 2, the skins 14 and 15 have edge flanges 14a, 14b, 15a and 15b whereby adjacent planks are hooked together, together with end flanges 14c having a pressed out portion 14e accommodating an extended portion 14f of an adjacent plank. Each end flange 14c has a rib R so that a capping C can be held in position above an I-beam 10, to which each plank is bolted, at a step 16 in its end. In the embodiment of Fig. 5, the capping is replaced by a weather strip 20 and a sealing compound and/or strip 19, there being no end flanges, and modified edge flanges.
Patent GB-494309-A (GB)
Title: Improvements in or relating to compression refrigerating apparatus
IPC: F04B45/053
Filed: 1937-04-23
Abstract: 494,309. Cylinders. ELECTROLUX, Ltd. April 23, 1937, No. 11661. Convention date, May 5, 1936. [Class 7 (ii)]. [Also in Group XXVIII] A diaphragm compressor for refrigerant is operated by the pulsations in the engine cylinders of a boat or car communicated through oil in passages 14, 25 leading to a face of the diaphragm.
Patent GB-573026-A (GB)
Title: Process for treating leather and products produced thereby
IPC: C14C9/02
Filed: 1942-08-21
Abstract: 573,026. Finishing leather. WALKER & SONS, Ltd., W., BURTON, D., and ALEXANDER, J. R. Aug. 21, 1942, No. 11767. [Class 76] Leather is treated so as to render it resistant to heating at 200‹C. by immersing commercially dry tanned leather for a prolonged period in a bath of a high boiling inert organic liquid at a temperature at or above 120‹ and preferably at 150‹C. or higher. Fatty or mineral oils and compounds of fatty acids with higher alcohols are suitable high boiling solvents. The period of immersion is at least 90 minutes.
Patent GB-1425655-A (GB)
Title: Liqud-cooled high-current cable
IPC: H01R4/00
Filed: 1973-03-12
Abstract: 1425655 Terminals KABELUND METALLWERKE GUTEHOFFNUNGSHUTTE AG 12 March 1973 [14 March 1972 22 April 1972] 11769/73 Heading H2E In a termination of a welding cable, the inner tube 1 for cooling water is fitted over a terminal tube 12 which is adapted to lead water to or from both the tube 1 and the space between the tube 1 and sheath 3 in which the stranded conductors 2 lie. The tube 1 therefore need not be perforated. The tube 1 is fixed to the tube 2 by ribs 14 and screws 13. Water flows in or out through one or more of pipe connections 7, 8, 9. One form of terminal tube (27, Fig. 4, not shown) is flexible. The conductors 2 are soldered at 6 to the terminal lug 5 and relieved of stress by semicircular clamps 17, with grooves (18, Fig. 3, not shown) for the conductor 2, screwed to the tube 12. The sheath 3 is attached by clips 4. The lug 5 has holes 11 by which it can be bolted to busbars.
Patent GB-475721-A (GB)
Title: Improvements in or relating to liquid fuel burners
IPC: F23D11/10
Filed: 1937-04-24
Abstract: 475,721. Liquid-fuel burners. BOLT, F. L., and WALLSEND SLIPWAY & ENGINEERING CO., Ltd. April 24, 1937, No. 11785. [Class 75 (i)] A liquid-fuel burner comprises a tubular body 1 formed with primary and secondary air inlets 2, 3 and a fuel inlet 26, a fuel injector tube 4 and a primary air tube 7 fitted with a nozzle 30, arranged axially in the body 1, a discharge nozzle 5, and an annular structure such as an aligned series of spaced forwardly converging circular or polygonal rings 9 arranged between the nozzles 5, 30 and directing the secondary air into a chamber 6 to mix with the fuel and primary air before discharge. The fuel injector tube 4 is fitted with a control valve 18 operated by a hand wheel 24 and formed with a helical extension 25 imparting a whirling motion to the fuel. The air inlet 2 is fitted with a control valve 12 and the air inlet 3 is fitted with an adjustable vane 11 imparting a whirling motion to the secondary air. The rings 9 may be threaded on support rods interposed between the nozzle 30 and a ring 31a carried by the nozzle 5. In a modification, the rings 9 have plane annular flanges.
Patent GB-755456-A (GB)
Title: Semiconductor devices
IPC: H01L21/00
Filed: 1954-04-23
Abstract: 755,456. Semi-conductor devices. RADIO CORPORATION OF AMERICA. April 23, 1954 [May 22, 1953], No. 11837/54. Class 37. A semi-conductor device comprises two regions of one conductivity-type with an intermediate zone of opposite conductivity type having variable conductivity along the line joining the two regions, the region of greatest conductivity being adjacent one of the two regions. Fig. 1 shows a transistor comprising emitter zone 12 and collector zone 16 of P-type material, and a base zone comprising a thinhigh-conductivity portion 18 and a lowerconductivity portion 20 both of N-type material. The base electrode is connected to portion 18. The arrangement provides low base resistance, low emitter input capacitance (due to the short diffusion path provided by the thin portion 18) and relatively high collector breakdown voltage (due to the high resistivity and space charge layer in portion 20). The semiconductor body may be prepared by successively alloying and diffusing donor and acceptor impurities into a layer of material of one conductivity type, or by growing a crystal from a melt the composition of which is modified to form regions of the desired type, or by bombardment with charged particles. Germanium and silicon are given as examples of semi-conductor material; indium, aluminium, gallium, boron or zinc as acceptors and antimony, bismuth, arsenic, selenium, tellurium and phosphorus as donors.
Patent GB-733914-A (GB)
Title: Improvements in or relating to laminated materials and methods of making the same
IPC: B32B27/00
Filed: 1951-05-22
Abstract: 733,914. Compound sheet materials. MACECHERN & CO., Ltd., and GEORGE, W. A. May 19, 1952 [May 22, 1951], No. 11890/51. Class 140. A laminated material is made by superimposing a number of sheets of (1) thermo-setting resin- or thermo-plastic resin-impregnated fabric base material; or (2) thermo-setting resin- or thermo-plastic resin-impregnated paper base materials one upon the other with adjacent sheets laid cross-grained and with a thin layer or coating of an adhesive between adjacent sheets, and subjecting the pack to pressure to bond them into a single sheet or block. The adhesive may be hot-setting e.g. phenol formaldehyde or melamine formaldehyde in which case the assembled sheets are subjected to both heat and pressure, e.g. at 280‹ to 300‹ F. and 150 to 400 lb. per square inch pressure. The adhesive may be coated on one or both sides of the sheet or may be impregnated in intermediate sheets. The laminate may be made wholly from resin-impregnated paper base material or resin-impregnated fabric base materal or a combination of these.
Patent GB-664565-A (GB)
Title: Roofing unit and roof constructed therefrom
IPC: E04D3/366
Filed: 1949-05-04
Abstract: 664,565. Roofing units; roofs. HOLLOWAY METAL ROOFS, Ltd., and BARNABY, F. May 4, 1950 [May 4, 1949], No. 11958/49. Classes 20(iv) and 87(i) A roofing unit comprises a wood or fibreboard sheet 1 having undercut wood battens 2 along its lateral edges and a thin copper sheet 3 covering the sheet 1 and the battens 2 and extending beyond the upper and lower edges of the sheet 1 to provide an apron 14 at the lower edge of the roof to lie against the ridge board 12 at 13 and to serve for the interconnection of units at 16. A single unit may extend from the ridge to the eaves. A copper channel 21 is sprung over abutting battens 2 and a further channel 29 over the ridge board 12. The channels 21 are retained by clips 25. The roofing units are secured to rafters 10 by screws.
Patent GB-566711-A (GB)
Title: Improvements in forced draught apparatus for boiler furnaces
IPC: F23L17/00
Filed: 1943-07-24
Abstract: 566,711. Forced draught apparatus. PROCTOR, Ltd., J., and PROCTOR, H. July 24, 1943, No. 12057. [Class 51 (i)] Forced daught is supplied to boiler furnaces by fans within casings D driven by motors E attached directly to the sides of air boxes A, A<1>, arranged at the front of the ashpits. The air inlets of the fans are surrounded by covers having peripheral screens F and are provided with dampers controlled by arms H mounted on the damper spindles G.
Patent GB-564879-A (GB)
Title: Improvements in electrical forging processes
IPC: H05B3/00
Filed: 1943-07-24
Abstract: 5 64,879. Heating by electricity. ACTON BOLT & FINE THREADS, Ltd., and CHELLIS, G. F. July 24, 1943, No. 12070. [Class 39 (iii)] [Also in Group XXII] To avoid local melting or burning in heating a workpiece, to be forged, by passing alternating current through it, the current-density is reduced when the temperature reaches a point below that at which inductance is eliminated, e.g. 900‹ C. in the case of ferrous metals. This reduction may be effected by reducing the voltage of the heating circuit, e.g. by using tappings on the transformer or by introducing a non-inductive resistance into the primary of the transformer. In the case of faulty steel pieces or any showing hot-spots during heating, each stage may be performed in two or more successive heats. When applied to severing a blank by pulling, as described in Specification 465,103, [Group XXII], a steel blank 3" in diameter is heated to 900‹ C. by a current of about 30,000 amperes and then to 1050‹ C. by a current reduced 20 to 25 per cent.
Patent GB-580459-A (GB)
Title: Improvements in or relating to drilling, reaming, tapping, screwing and like machinetools
IPC: B23B39/20
Filed: 1944-06-26
Abstract: 580,459. Drilling-machines. BLUNDELL BROS. (LUTON), Ltd., and HAMMELBURGER, F. June 26, 1944, No. 12104. [Class 83 (iii)] A multiple-spindle device that can be built as a special machine, particularly a bench drilling-machine, or as an attachment to an existing machine, has a number of tool-carrying spindles that can be brought successively into driving relation with a single driving spindle to perform drilling, reaming, tapping, screwing and like operations. As an attachment to a bench drill, a split bush 6, Fig. 2, is clamped round the machine pillar 2 and has recesses closed by cover-plates 14, Fig. 4, to receive rectangular slide bars 12 fixed in adjusted position by screws 16 and carrying brackets 17 with bushes 19 in which spindles 20 slide and turn. Casings 21 formed as oil baths are pinned at 22 to the spindles and are supported by springs 23. The casings are swung alternately into positions, determined by stop screws 29, in which tool spindles mounted therein are in alignment with the machine spindle 4. In the case of, say, a drilling-spindle to rotate at the same speed as the machine spindle, the tool spindle is mounted in ball bearings in the casing, the lower end rotating in a gland to prevent escape of oil. For reaming &c., the tool spindle 30 is driven at a reduced speed and is mounted in a ball bearing 32, a gear 36 receiving the outer race of a roller bearing 33, the inner race of which is mounted on an intermediate spindle 40 having a pinion 39. A countershaft 43 mounts a cluster gear 44 connecting the gears 36, 39. The machine spindle 4 mounts one element 27 of a combined friction and positive clutch, the other element being formed on the spindle 40. The friction member 48 is urged downwards by a spring 51 and under the counter-pressure of the spring 23 conical surfaces on the clutch parts first take up the drive which is finally rendered positive by buttress teeth 53.
Patent GB-862806-A (GB)
Title: Improvements in or relating to sizing devices
Inventor: JONES DAVID GRIFFITHS
IPC: G01B7/13
Filed: 1958-04-17
Abstract: 862,806. Measuring electrically. DELAPENA & SON Ltd. July 16, 1959 [April 17, 1958; March 7, 1959], Nos. 12185/58 and 7984/59. Class 40 (1). [Also in Group XXIII] In a cylinder bore size indicating or controlling device the magnetic circuit of a coil is completed by a piece of magnetic material attached to the abrading head of a honing machine so that as the bore increases in diameter the reluctance of the magnetic circuit of the coil decreases. In Fig. 1 annular housing 1 holds cylinder liner 4 in honing jig 7. In an annular recess 10 is a U-section ring core 9 of magnetic material containing coil 12 held in place and protected from mechanical damage by a ring 14 of non-magnetic material. Sensing element, indicated at 31, is spring-mounted on the abrading head and urged into contact with the bore and tends to complete the magnetic circuit of coil 12 between the limbs of core 9. Preferably at least 3 sensing elements are used and the measurement obtained is of the mean bore diameter. Measuring circuit. The indication of bore diameter may be obtained by comparing the voltage developed across a fixed inductor, connected in series with the coil 12 across an A.C. supply, with a fixed proportion of the supply voltage. Alternatively, as in Fig. 2, the coil may be connected in series with a second similar coil not operatively associated with a bore, the voltages developed across each coil being rectified and applied to two coils of a differential relay 23 so that the difference in the two voltages operates the relay. A third winding 29 may be provided on the relay energized from a control voltage so that when the difference between the voltages developed by the operating coils 12 and 20 falls below a certain value the controlling winding operates the relay and stops the honing operation or indicates that the bore is the required size. The control voltage may be variable to cater for various nominal finished bore sizes. Alternative forms of core are suggested where the core does not completely encircle the bore possibly using two separate cores at each end of a diameter of the bore and preferably more than two sensing-elements so that at least one sensing element is always opposite each core and affecting the reluctance of its magnetic circuit.
Patent GB-417951-A (GB)
Title: Improvements in or relating to stands for motor cycles
IPC: B62H1/02
Filed: 1933-04-26
Abstract: 417,951. Cycle supports. SCAFE, H. E., 11, Dorset Mount, Harehills Lane, Leeds. April 26, 1933, No. 12199. [Class 136 (i).] A stand attached to a motor cycle to support it in an inclined position comprises a flat bar-like leg 2 pivoted on a bolt or stud 8 carried by a bracket 5 secured to a part of the cycle between the wheels, for example to the rod 6 supporting the footrest, the leg 2 being held in its downturned operative position by the engagement of a stop-projection 10 on its upper end with one of the vertical edges of the bracket 5. An inwardly-turned projection 11 may be used to limit the upward pivotal movement. The lower end of the leg 2 is forked at 3. To allow of adjustment, the leg 2 may have a series of holes for engagement by the pivot stud 8, and the attachment of the bracket 5 to the rod 6 may be similarly adjustable. The leg 2 may be spring controlled, and a spring washer may be provided at the pivot to retain it in the raised position.
Patent GB-1293423-A (GB)
Title: Formation of polyphenylene ethers
Inventor: COOPER GLENN DALE
IPC: C08G65/44
Filed: 1970-03-13
Abstract: 1293423 Polyphenylene ethers GENERAL ELECTRIC CO 13 March 1970 13 March 1969] 12263/70 Heading C3R Polyphenylene ethers of formula where Q and Q<SP>1</SP> are aliphatic hydrocarbon radicals having 1 to 4 carbon atoms or phenyl radicals and n is at least 100, are obtained by reacting phenols of formula with gaseous oxygen in a solvent in the presence of a complex catalyst formed from a non-basic cupric halide, a primary or secondary amine and an alcohol, the amount of alcohol not being more than 5% by volume of the reaction mixture including the phenol, solvent and complex catalyst. In examples polymers are obtained from 2,6-xylenol, the catalysts being formed from anhydrous cupric bromide, aqueous cupric bromide, anhydrous cupric chloride, din-butylamine, methanol and isopropyl alcohol.
Patent GB-611424-A (GB)
Title: Apparatus for holding cloth to be smocked
IPC: D05B35/08
Filed: 1946-04-23
Abstract: 611,424. Holding cloth for smocking. KELLY, H. April 23, 1946, No. 12273. Convention date, April 23, 1945. [Classes 112 and 141] An apparatus for holding cloth to be smocked comprises a curved frame carried on supporting means and having a series of plates 12 movable thereon between which folds of the cloth 14 are held by tensioned threads 15. The circular wires 10 are secured to the central member 9 by a frame 11 to which a plate 13 is fixed and against which the end of the cloth is held by the thread, which is anchored to the shaft 7 and then passed in front of the fixed plate. The plates 12 are moved on the wires 10 to clamp folds of cloth which are formed by passing the thread successively in front of each of the plates. A different set of plates may be used to alter the depth of the folds and threads of different diameter used to regulate the tightness of the smocking.
Patent GB-559871-A (GB)
Title: Improvements in or relating to tractors and agricultural implements therefor
IPC: A01B35/14
Filed: 1942-09-02
Abstract: 559,871. Agricultural implements. PARKER, C. F., and HEMPSALL, N. W. Sept. 2, 1942, No. 12362. [Class 6 (i)] Agricultural implements, particularly those for covering potatoes laid in furrows, are propelled in front of a tractor, the front axle 12 of which rocks about a horizontal axis pin 13. A coupling-member comprises a framework 14 fast with the front axle 12 and pivoted about a horizontal axis pin 18 and at the front to a shackle 19 fixed to the tractor frame by straps 22, the pins 13 and 18 being arranged co-axially. The coupling-frame is also braced by struts 17, and formed with extensions 23 to which the implement frame 25 is pivoted. The latter supports parallel tool-bars 27, 18, one for supporting 'ridging-tools', plough shares, discs, scribes, tines, or the like and the other rollers 32, all supporting-brackets being adjustable. The implement frame sides 25 are linked adjustably to a hand-lever 35. Tension springs 41 assist lifting from operative position.
Patent GB-872013-A (GB)
Title: Flow measuring device
IPC: G01F1/44
Filed: 1958-04-18
Abstract: 872,013. Measuring fluid-flow. GARRETT CORPORATION. April 18, 1958 [April 18, 1957], No. 12418/58. Class 69 (1). A fluid-flow measuring device comprises a head 13 secured in an opening in a duct wall, a pair of hollow blades 10, 11 each having an aerofoil cross-section and supported at one end by the head, the blades being spaced apart and having their spanwise axes parallel, each of the blades having a convex surface 25 facing a convex surface 25 on the other blade to form a passage between them of Venturi shape in sections at right-angles to the spanwise axes of the blades, the passageway including a throat region and a diffuse region extending from the throat region, the blade 10 having a static pressure tap 20 at the throat region and the blade 11 having a static pressure tap 21 at the diffuser region. One end of each of the blades 10, 11 is closed by a common plate 12 and the other end of each blade is embedded in the cast head 13 which has a cylindrical portion to fit into a hole in the duct in which the fluid-flow is to be measured. The head 13 is provided with a low pressure outlet 14 connected to the interior of the blade 10 through an opening 16 and a high-pressure outlet 15 connected to the interior of the blade 11 through a similar opening 17. In a modification both pressure taps are formed in the same blade.
Patent GB-1323615-A (GB)
Title: Egg container
IPC: A47G19/28
Filed: 1971-04-30
Abstract: 1323615 Egg cups DART INDUSTRIES Inc 30 April 1971 [1 May 1970] 12434/71 Heading A4A An egg cup has a cap 10 and a base 11, the cap having a depression 18 so that it may be used inverted to steady the egg when cutting its top off. The base 11 has a depression 14 for receiving the egg and a rim 15 that engages the cap. There may be fins 21 on the inside wall of the cap.
Patent GB-487626-A (GB)
Title: Improvements in or relating to drawing mechanisms for spinning frames
IPC: D01H5/26
Filed: 1937-05-01
Abstract: 487,626. Drawing - apparatus for spinning-frames. AKT.-GES. J. J. RIETER & CIE. May 1, 1937, No. 12498. Convention date, May 2, 1936. [Class 120 (ii)] The carrier 3 for the roller 1, Fig. 1, which tensions the endless band in the drawing head of a spinning machine is formed or provided with a stop or retaining means to prevent the roller from slipping out of the slots 5 in the carrier 3. In one form a spring 2, Fig. 1, held at one end on the rod 4, is arranged to support the roller spindle 6. Alternatively a spring 7, Fig. 2, which coacts with a clip to prevent the carrier 3 shifting axially on the rod 4, has a projection 8 which serves as a buffer if the roller 1 slides down the slot 5. In further modifications elbow-shaped slots may be provided in the carrier 3 as at 16, Fig. 3, and 19, Fig. 6. The Specification as open to inspection under Sect. 91 comprises also other forms of clipping springs shaped to limit rotation of the carrier on the rod 4, and also a modification wherein the carrier 3 has limbs which may be flexed outwards for inserting the roller 1 and which spring inwards to support the roller. This subject-matter does not appear in the Specification as accepted.