baber/WOPTO huggingface dataset:
Patent GB-172336-A (GB)
Title: Improvements in or relating to thermostatically controlled socket switches
IPC: H01R33/94
Filed: 1921-12-05
Abstract: 172,336. Shawmut Machine Works, Inc., (Assignees of Smith, R. D.). Dec. 3, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Electrically tripped switches; retarding-devices. - A thermostatically-controlled delayed action switch especially adapted to be incorporated with a lamp-holder comprises a spring contact-member which is brought into the closed position by a cam device operated by a pull chain; in the return movement, which is produced by pulling the " off " chain, the contact member is held in an intermediate position, in which the lamp is still lit, by a bimetallic thermal element brought into circuit by the off " movement so that the " off " position is not finally reached until after a predetermined time during which the thermal element is heated up and bends out of the way of the contactmember. As shown applied to a switch-adapter fitting which may screw into an ordinary lamp-holder and takes a screw lamp, the fitting comprises a number of brackets mounted between the blocks 10, 11. An auxiliary contact bracket 13 is connected to the shell and carries the main spring-contact 17, the working face of which is partly covered with insulation. A main contact bracket 12 is connected to the centre pin of the fitting and so to one of the leads and carries a fixed stamped contact 16 having reinforcing sides. A thermostat bracket 15 supports the bimetallic element 25 and a spring contact 26 and is extended at 30 to form a pivotal support for the actuating cam mechanism comprising cam elements 31 mounted on a plate 34 which carries also a guideway for the driving chains. The driving mechanism is mounted on the extension 30 by means of a screwed pivot pin 45 with a spring washer interposed. The open position of the parts is shown in Fig. 6. To close the switch the chain 43 is pulled and slides freely through the sleeve coupler 41 secured to the " off " chain 42. The ports now assume the position shown in Fig. 7, in which the short cam-member 31 is in contact with the auxiliary contact 17. The contact 26 is urged past the springy free end of the bimetallic strip. When the " off " chain is pulled the contact-member 26 is released by the cam but is held by the end of the strip. The heating element 29 is now in circuit, and after a line the free end of the strip moves to release the contact-member to break the circuit.
Patent GB-729171-A (GB)
Title: Improvements relating to beams for mine supports
IPC: E21D17/086
Filed: 1952-12-23
Abstract: 729,171. Mine roof supports. REPPEL, W. Dec. 23, 1952 [Dec. 29, 1951], No. 32666/52. Class 20 (2). Mine roof beams 1, 6 are connected to swing in a vertical plane by an intermediate member 4 pivoted by bolt 7 to one beam 6 and having a pin 5 which is adapted to be inserted laterally into a jaw 2 on the end of the other beam 1. The member 4 engages the bearer 6 by a forked part between which and the beam, spring friction washers are placed. A wedge 10 supports the beam 1 horizontally after the beam 6 has been supported by a mine prop 17. The member 10 may be parallel sided and formed in two parts 12 adapted to be separated by a wedge.
Patent GB-1482221-A (GB)
Title: Washing-machines
IPC: D06F13/02
Filed: 1974-07-24
Abstract: 1482221 Washing-machines PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 24 July 1974 32697/74 Heading D1A To allow free thermal expansion in both axial directions a washing machine agitator is secured to a drive nut 12 on a drive shaft 11 by means of a lock nut 14 and clamping means supported thereon, preferably formed as a column portion 6 of the agitator, which urge an inwardly directed shoulder 16 on the agitator against the drive nut. The column portion 6 may be of polypropylene and the other portion 5 of the agitator, which carries vanes 7 and has a frusto-conical section, may be of thermosetting plastics e.g. phenol formaldehyde resin. Alternatively both portions may be of the former material. The shoulder 16 supports a seal 17. The agitator is oscillated about the axis of shaft 11 within a tub 4, e.g. in a twin-tub machine, and its portion 5 covers a drain pipe opening 8 and an immersion heater.
Patent GB-1510859-A (GB)
Title: Methods of and apparatus for multifrequency tone detectio
IPC: H04L27/26
Filed: 1975-08-05
Abstract: 1510859 Multifrequency tone detection WESTERN ELECTRIC CO Inc 5 Aug 1975 [12 Aug 1974] 32704/75 Heading G4H The presence in an input signal of any one of m different tones (each including n different frequencies) is detected by: sampling the input signal at a first time and subsequent times delayed therefrom by half-periods and combinations of half-periods of said frequencies; and forming m summations of the samples, corresponding to a different tone and each including the first sample and 2<SP>n</SP>-1 subsequent samples of its corresponding tone; whereby that summation having substantially zero value is indicative of the presence of the corresponding tone in the input signal. In Fig. 1, the input signal is passed through means 11, 12 for removing signal strength fluctuations to means 14 for performing the above mentioned steps, the output 20 of which is a bit stream, each bit position corresponding to a different receivable tone, and the bit level indicating presence or absence thereof. This output is fed to circuits 19 which check that a bonafide tone is present, e.g. by checking that a presence signal persists for a predetermined time. Embodiments of means 14 are described with reference to Figs. 2, 3 (not shown) and 4. In Figs. 2 and 3 a counter-operated read-only memory (34) is used to control the sequence of operations. In Fig. 2, signal 10 is converted to digital form; sampled, and added to a respective one of m running totals stored in a memory (27). In Fig. 3, each sample is stored on a respective capacitor (56), the potentials on 2<SP>n</SP> capacitors being added at the end of the samplings for the respective tone. In each case the sums are fed to a null detector controlled by memory (34). In Fig. 4, 12 tones each of two frequencies (one of <SP>1</SP>/T 1 -<SP>1</SP>/T 3  with one of <SP>1</SP>/T 4 -<SP>1</SP>/T 7 ) can be detected, there being 20 samples at times 0, T 1 / 2 , ..., (T 3 +T 7 )/ 2 . The input signal is distributed to capacitors 74-89 under the control of generator 93 which sends signals A-L to IGFET switches A-L. To detect, e.g. tone 1 (frequencies <SP>1</SP>/T 1  and <SP>1</SP>/T 4 ), signal 15 is sampled at times 0, 1/T 1 , <SP>1</SP>/T 2 , and (T 1 + T 4 )/ 2  (2<SP>n</SP>=4); the first three samples are stored on capacitors 74, 78 and 83 (switches A; B+E, C+H), then these samples are added to the fourth sample at the input (switches D, E and H). Switch L is also enabled so that the sum can pass to detector 64.
Patent GB-655024-A (GB)
Title: A process for the production of alcohols
IPC: C07C27/22
Filed: 1948-12-17
Abstract: In the synthesis of aldehydes from unsaturated carbonaceous materials by treating with carbon monoxide and hydrogen at elevated temperature and pressure in presence of a cobalt catalyst, soluble cobalt is removed from the liquid product by contacting it at 30-50 DEG  C. and below 10 atmos. for at least half an hour with a non-oxidizing gas, preferably containing hydrogen, in presence of a solid carrier material, and then contacting the product, after preheating to 150-200 DEG  C., under at least 10 atmos., e.g. 25-50 atmos. or higher, with a gas containing hydrogen, until soluble cobalt is substantially absent.  Any solid carrier which is relatively inert and of large surface, e.g. pumice, kieselguhr, coke, and asbestos, may be used either as a fixed foraminous bed or suspended in the liquid.  Such a carrier may also be used in the second stage. Non-oxidizing gases include flue gas, carbon dioxide, hydrogen, methane, nitrogen, and mixture of hydrogen and carbon monoxide containing not more than 50 per cent of the latter.  The suspended carrier with deposited cobalt may be recovered or left as catalyst for subsequent hydrogenation to alcohols.  In fixed bed operation, the cobalt may be dissolved out in the reactants.  An example describes the carboxylation of a fraction consisting largely of C6-C8 olefins with CO and H2 in molar ratio of 2 : 3, using a finely-divided cobalt-kieselguhr catalyst at 150-170 DEG  C., 250 atmos., and a contact time of 15 minutes.  Unreacted gas is recycled, and the liquid product decobalted, first at atmospheric pressure and 30-50 DEG  C., and then at 25 atmos. and 200 DEG  C.
Patent GB-507831-A (GB)
Title: Improvements in diesel engines
IPC: F02B21/00
Filed: 1938-11-10
Abstract: 507,831. Oil engines. LANG, F. Nov. 10, 1938, No. 32740. Convention date, Nov. 25, 1937. [Class 7 (iii)] In a Diesel engine having a fuel nozzle g and an air cell h disposed on opposite sides of a combustion chamber d, the axis of the air cell orifice is directed towards the centre of the chamber, whilst the axis of the fuel nozzle is directed towards the air cell orifice. An inlet valve is arranged in the combustion chamber and an exhaust valve f in the cylinder head. In an 8-shaped combustion chamber, each compartment of the chamber is provided with an air cell h and a fuel nozzle g, and the piston may be provided with a projecting boss which enters the chamber and has a transverse trough b<3> into which the nozzles and air cells discharge. The nozzles and air cells may be adjacent to or remote from the junction of the two compartments of the combustion chamber. Specitications 283,797, [Class 7 (iii)], and 362,146 are referred to.
Patent GB-814146-A (GB)
Title: Electrical network assembly
IPC: H05K7/02
Filed: 1956-10-29
Abstract: 814,146. Electrical circuit assemblies. ERIE RESISTOR CORPORATION. Oct. 29, 1956 [Nov. 9, 1955], No. 32878/56. Class 37. [Also in Group XXII] An assembly of electrical-circuit components comprises a plurality of components all in the form of annular discs 28 arranged in a stack and a plurality of terminal members 33 each having one end interleaved between two adjacent discs and the other end extending beyond the stack. Preferably the stack is arranged within a squirrel-cage formed of a plurality of parallel conducting bars, the terminal members being connected to appropriate ones of the bars. As illustrated in Fig. 6 the discs, bearing electrodes 29, are mounted upon a central spindle 31 with a terminal member 33 making contact with one of the squirrel-cage bars 11  and a solder disc 34 arranged between them. The assembly is subjected to pressure and heated by dipping it in hot oil so causing the solder to melt and soldering the discs together. The spindle 31 may then be removed. The squirrel-cage bars are attached to a supporting plate 22, Fig. 1, on which is mounted a valveholder 24. The bars project through the plate 22 and their upper ends 23 serve as plugs for attaching the assembly to a chassis panel 47, Fig. 10, by inserting the holder 24 through the aperture 24a from underneath, the upper ends 23 of the bars fitting within the smaller apertures surrounding the central hole 24a. The assembly is connected electrically into the circuit by means of printed wiring on the surface of the panel 47 making contact with portions 23 of appropriate ones of the bars. The valve holder terminals are extended to make contact with appropriate ones of the end portion 23; alternatively the upper surface of the plate 22 carries printed wiring interconnecting the valveholder terminals and the squirrel-cage bars.
Patent GB-1060853-A (GB)
Title: Improvements in or relating to air filters
Inventor: STREETE CHARLES MATHIAS
IPC: F02M35/14
Filed: 1966-06-05
Abstract: 1,060,853. I. C. engine air filters/silencers. COOPERS MECHANICAL JOINTS Ltd. and C. M. STREETE. May 24, 1964 [June 5, 1963], No. 32903/66. Divided out of 1,060,852. Heading BIT. An I.C. engine air intake filter comprises an annular pleated filter element 14 in a two part housing 1, 10, the base of the housing having a circular opening whose rim 6 engages, through sealing gasket 8, a plate 7 which is attached by studs 28 to a carburettor or air inlet of a diesel engine, plate 7 having an air outlet (27) with a rounded inlet edge (32) (Figs. 3, 4, 6 not shown). Housing 1, 10 is attached to plate 7 by nut 9, 11 and bolt 12 and may be turned so that inlet 4, of tapered form, points in various directions. Between housing ports 1, 10 are clamped element 14 and a baffle 20, (21), 22 (Fig. 1, not shown) which together with inlet 4 and buffer chamber 23 forms a silencing chamber, air passing from inlet 4 along two arcuate passages before reaching the element 14. Baffle walls 20, (21) may be perforated. Heads of bolts 12, 28 are moulded into cast aluminium plate 7, which has a thick portion (31) around the outlet (27) and a thin portion reinforced by webs (30), the thin portion being either uppermost (Fig. 4) or lowermost (Fig. 2). Housing 1, 10 may be of sheet metal or plastics.
Patent GB-1043249-A (GB)
Title: Improvements relating to the production of cast tubular hollows
Inventor: GLEN JOHN
IPC: B22D18/04
Filed: 1962-08-28
Abstract: 1,043,249. Casting machines. STEWARTS & LLOYDS Ltd. June 6, 1963 [Aug. 28, 1962], No. 32990/62. Heading B3F. In a die assembly for " slush " casting tubular hollows by the method disclosed in Specification 885,757 which is referred to, the die 24 and the dip tube 67 are separate parts axially aligned in a holder 60 supported in the lid of the molten metal container, Fig. 1 (not shown). In a modification, Fig. 2 (not shown), the dip tube 71 is clamped against an asbestos etc. seal 89 in a sleeve 72 by a liner 85 pressed downwardly by spring-loaded clamps 74, the tubular die being inserted in the liner between guides 86 and resting on a gasket 92A or 92B.
Patent GB-1082618-A (GB)
Title: Improvements in or relating to heating apparatus for food articles
IPC: A47J37/04
Filed: 1965-08-03
Abstract: 1,082,618. Cooking apparatus. JOE'S DINERS PROPRIETARY Ltd. Aug. 3, 1965 [Aug. 7, 1964], No. 33095/65. Heading A4D. In a food heating apparatus, in which food is carried on a revolving shelf 4 between fixed heating elements 10, 13, the upper radiant heaters 10 are arranged at circumferentially spaced intervals over a hot plate portion 5. The shelf 4 may be provided with an annular grid 6 and an additional gridded revolving shelf 14 is arranged, beneath a radiant heater 15, for toasting slices of bread. A metal splash tray 17 is arranged beneath the shelves. The speed at which shaft 3 is rotated, by motor and reduction gear 9, is adjusted so that a toasting or grilling operation is completed in each revolution of shelf 4.
Patent GB-765499-A (GB)
Title: Improvements relating to vehicle weight measuring devices
IPC: G01G19/04
Filed: 1954-11-16
Abstract: 765,499. Retractive switches. WESTINGHOUSE AIR BRAKE CO. Nov. 16, 1954 [Jan. 22, 1954], No. 33122/54. Class 38(5) [Also in Group XVIII] A switch controller for a vehicleweighing apparatus comprises a plurality of movable contacts coacting with corresponding fixed contacts within a case, the latter having a resilient portion projecting into a slot in the web of the vehicle-supporting member, so that deformations of the slot under loading of the said member are transmitted through the case to cause displacement of the movable contacts towards the fixed contacts. The circuit controller case 9, Fig. 1, has its resilient portion 12 in the web of the beam, the members 3, secured by bolts 4, preventing excessive displacement of the beam-head 1 under load. The U-shaped contact carrier spring 24, having a bridge support 26, is responsive to displacements of the beam-head through an insulating block 27 and a pressure button 13, and carries three moving contacts 23, one only being shown;' these contacts make successively with fixed contacts 20 under light, medium, and heavy corressponding loads respectively, the fixed contacts being .adjustable by screws 22. In a modification, Fig. 3, the U-shaped spring is replaced by a carrier 28 pivoted at 34, and coacting with a spiral spring 35. A screw 27 associated with the spring permits of adjustment of the contact separations.
Patent GB-856610-A (GB)
Title: Improvements in or relating to tube couplings
IPC: F16L13/14
Filed: 1959-09-30
Abstract: 856,610. Tube couplings. CARLSSON & LARSSON A.B. Sept. 30, 1959 [Oct. 1, 1958], No. 33133/59. Class 99(1). In a coupling wherein metal tubes 1 are connected by a metal sleeve 3 having an internal diameter greater than the external diameter of the tubes, there are local sharppointed engaging elements or dis-continuities and sealing elements in the annular space between the sleeve and tubes and which are adapted, by radial compression of the sleeve, to cause such a local deformation of the corresponding contact places that the sleeve and tube, by positive interengagement in the deformations thereby produced, form a rigid unit resistant to compression in the coupling. As shown, the sleeve is provided with grooves 4, 5 which receive sealing rings 6, 7 of polytetrafluoroethylene, rubber or zinc, one wall of each groove being extended radially to form edges 8, 9 such that when the sleeve is compressed those edges are pressed into the walls of the tubes. In modifications, (a) the grooves 4, 5 receive local circumferential beads formed in the walls of the tube by compression of the sleeve, (b) hard particles 11, Fig. 4, within an elastic sealing mass 12 between the sleeve and tubes are pressed into the walls of the sleeve and tubes, and (c) the edges 8, 9 are in the same plane as the inner wall of the sleeve and the latter has external, annular beads ; alternatively, the beads are incorporated in the dies for compression of the sleeve. The edges 8, 9 may be helical in form and have interruptions therein.
Patent GB-341996-A (GB)
Title: Improved friction gear
IPC: F16H13/02
Filed: 1929-10-31
Abstract: 341,996. Friction gearing for filmfeeding mechanism &c. GRAMOPHONE CO., Ltd., Hayes, Middlesex, and BROWNE, C. 0., 3, Freeland Road, Ealing Common, London. Oct. 31, 1929, No. 33177. [Classes 80 (i) and 80 (ii).] In friction gearing, particularly for driving a sound film from the same synchronous motor as a picture film, an automatic variable-speed drive is employed to ensure that despite temporary slip between the driving and driven members, the total movement of the driven member is at any moment substantially or exactly the same as if such slip had not occurred. The driving-roller 11 is splined on its shaft 9 and engages a driven disc 4 which carries also teeth 7 rotating a nut 17 engaging a screw 15 integral with the roller 11, the gear ratios being so chosen that normally the nut 17 and roller 11 rotate at the same speed. Axial movement of the nut 17 is prevented by engagement of a flange 18 thereon with lugs 19 on a stationary bar 20. Temporary increase of load, causing slip of the parts 11, 4, slows the nut 17, and the roller 11 moves to the left to increase the speed ratio between the parts 11, 4. When the load falls again, therefore, the shaft 3 is speeded up and drives the nut 17 more quickly than the roller 11, so that the latter is returned to normal position, the shaft 3 having meanwhile recovered its lost motion. The flywheel 10 is arranged upon the shaft 9, rotating more quickly and thus more effectively than if it were upon the shaft 3. A roller 21 loose on the shaft 9 balances side thrust on the disc 4. The driving and driven shafts may be slightly offset to take up backlash in the gearing.
Patent GB-465288-A (GB)
Title: An improved manufacture of artificial asphalts
IPC: C10C3/00
Filed: 1935-11-29
Abstract: <PICT:0465288/III/1> Artificial asphalt is made by incorporating a high-boiling petroleum oil free from asphaltenes and resins with a segregated petroleum fraction consisting essentially of resins and with a segregated petroleum fraction consisting essentially of asphaltenes.  The three components are obtained by treating a petroleum residual oil with solvents in several stages in which different solvents or different temperatures and pressures are used. Solvents specified are liquefied propane, ethane or butane; phenol, cresol, aniline, furfurol, or mixtures of these.  Residual petroleum oil is pumped into a chamber 3 where it is treated with p  liquefied propane at 120 DEG  F. and under 200 lbs. pressure.  A separation into two layers occurs, and the lower layer passes to chamber 7 where it is treated with a further amount of propane at 130 DEG  F. and under 220 lbs. pressure.  A lower layer mainly of asphaltenes is formed and may be further treated with propane at higher temperatures to remove small amounts of resins contained therein.  The upper layer of oil solution is returned to chamber 3.  A lower layer of asphaltenes is returned from chamber 3 to chamber 7 and the upper layer containing oil and resins passes to chamber 16 where the temperature is raised to 170 DEG  F. and the pressure to 450 lbs. Heavy oil and resins are deposited and the lighter oil and propane is removed through a pipe 17.  The heavy oil and resins pass to a chamber 22 where propane is added and a temperature of 150 DEG  F., and a pressure sufficient to liquefy the propane is maintained.  The resins are deposited and the heavy oil solution is removed through a pipe 27.  The heavy oil, resins and asphaltenes from the same or different residual oils are then combined in proportions suitable to form an artificial asphalt. In examples, 38 to 46 per cent asphaltenes, 16 to 36 per cent resins, and 26 to 37 per cent of oil are used.  Specification 409,278 is referred to.
Patent GB-608248-A (GB)
Title: Improvements in or relating to centrifugal governors
IPC: G05D13/00
Filed: 1945-12-08
Abstract: 608,248. Speed governors; stop gear. COSTA, H. DA, and PLESSEY CO., Ltd. Dec. 8, 1945, No. 33228. [Classes 57 and 122 (iv)] [Also in Group XXXVII] A centrifugal governor comprises a tubular housing 1 having a transverse bore 2 in which slides a centrifugal weight loaded by a spring lever 6 attached to a threaded plug 3 adjustable in the tubular housing. The spring may be extended and guided in a slot in the tubular housing. A shroud 7 surrounds the housing 1 and is contacted by the weight 4 at a predetermined speed. Fig. 3 shows the governor 19 applied to the ignition circuit of an engine. The switch 9 is closed to energize the circuit which is then completed by an electromagnet 11 attracting the switch arm 13. When a predetermined speed is reached the governor 19 short-circuits the switch 13 and the ignition circuit ceases to operate. Fig. 4 shows the shroud 21 loaded by a spring 22 _so that at the predetermined speed the weight 23 frictionally engages the shroud and the switch 24 is closed to render the ignition circuit of the engine inoperative.
Patent GB-333724-A (GB)
Abstract: 333,724. Clavel, R. March 16, 1929, [Convention date]. Addition to 277,602. Yarns &c., treating with liquids.-The process described in the parent Specification for weighting artificial silk yarn or fabrics as modified by Specification 280,094 is further modified by treating the material with a metal-salt solution, freeing from excess solution by centrifuging, squeezing, or like treatment, and then transferring to an acid-fixing bath which may contain a protective colloid without intermediate washing, deacidification or neutralization. In an example, skeins of artificial silk are dipped into a stannic chloride bath and dried in air. This may be repeated several times. The skeins are then well centrifuged and without washing are brought into contact with a solution of monosodium phosphate. After wringing out, and rinsing if desired, the final treatment is effected by a soap-containing water glass bath.