baber/WOPTO huggingface dataset:
Patent GB-710147-A (GB)
Title: Improvements in the thermostatic control of cookers
Inventor: ROWSE RICHARD HAMILTON
IPC: H05B1/02
Filed: 1951-12-27
Abstract: 710,147. Stoves. SMITH & WELLSTOOD, Ltd. Dec. 4, 1952 [Dec. 27, 1951], No. 30199/51. Class 126 The air supply beneath the grate of a solid fuel cooking stove is controlled by a thermostat device including a heat-sensitive element located in a compartment between the cast iron encasement of the fire box and the front wall of the cooker and co-operative with a spring-loaded lever carrying a damper at its lower end. The air supply beneath the grate 4 of a cooker is controlled by a damper 5 secured to the free end of a lever 7. The pivot 7<SP>1</SP> of the lever is carried by an adjusting screw operable by a knob 10. The lever 7 is loaded by a normally compressed spring 9 and carries a strut 8 bearing against a bimetallic strip 6 which is arranged to flex freely under overheat conditions. The bimetallic strip 6, lever 7 and damper 5 are located within a compartment between the front wall of the fireplace and the front plate 12 of the cooker, and radiation from an area of the firebox wall 2 unprotected by insulating material 14 falls on the bimetallic strip 6. Other forms of thermostat may be used.
Patent GB-793069-A (GB)
Title: Improvements relating to the fettling of clay-ware
Inventor: MILLER ROBIN GORDON
IPC: B28B11/18
Filed: 1955-10-24
Abstract: 793,069. Making pottery. RIDGWAY POTTERIES, Ltd. Jan. 21, 1957 [Oct. 24, 1955], No. 30275/55. Class 87(1) A fettling tool comprises a metal blade 31 resiliently mounted by means of a strip 30 of polyvinyl chloride &c. which is carried by a bracket 25, 26 adjustable along a frame part 21. The blade is adjustable in position by screws 27, 39, 46. The blade is provided with a tungsten carbide &c. tip 33. Specification 610,759 is referred to.
Patent GB-794005-A (GB)
Title: Production of sodium
IPC: C22B26/10
Filed: 1956-10-04
Abstract: A cyclic process for producing sodium comprises reducing sodium carbonate with carbon in a high temperature reactor, condensing the sodium vapour to produce molten sodium and dross, fluxing the dross with sodium hydroxide and separating the flux, heating the flux in a low temperature reactor with additional sodium hydroxide and carbon to produce sodium, hydrogen and sodium carbonate, condensing the sodium and recycling the sodium carbonate.  The sodium may be condensed at each stage in molten sodium.  The high temperature reactor may be fed with briquettes of sodium carbonate, coke, and pitch and be operated at a temperature of 1200 DEG C.-1500 DEG C. under pressure of 0.5 atmosphere.  The sodium condenser may be operated at a pressure of 1" of mercury.  The flux may be fed in a liquid state to the low temperature reactor which is operated at 700-900 DEG C. U.S.A.  Specification 2,391,728 is referred to.
Patent GB-889687-A (GB)
Title: Microscope objective
IPC: G02B21/02
Filed: 1959-09-04
Abstract: 889,687. Microscope objectives. WILD HEERBRUGG A.G., and BERTELE, L. J. Sept. 4, 1959 [Sept. 4, 1958], No. 30340/59. Class 97(1). A microscope objective with a flattened 'image field comprises a meniscus convergent lens component G which is convex towards 'the image and has an axial thickness greater than the focal length of the objective and is characterized by at least one dispersive lens component on the image side of and separated' from the meniscus component by an air space, which has the form of a collective meniscus also convex towards the image. On the object side of the meniscus lens component are three collective lenses, the lens nearest the object being a meniscus which is convex towards the image and the radius of the concave face of which is shorter than the axial thickness of the lens. The air space between the thick meniscus lens component and the next lens towards the object has the shape of a collective lens. The thick meniscus lens component, in an alternative embodiment, is formed of at least two simple or compound lenses spaced apart by one or more air. spaces. The rear dispersive lens may be a singlet or a doublet. Optical data are given for three examples, one of which is shown.
Patent GB-443608-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D13/64
Filed: 1934-10-24
Abstract: 443,608. Friction clutches. NEWTON, N. B., Newton & Bennett Works, Valetta Road, Acton, London. Oct. 24, 1934, Nos. 30443/34 and 6216/35. [Class 80 (ii)] The driven member of a plate clutch comprises a pair of friction-faced plates 10, 11 arranged back-to-back and fixed to a flanged hub, which may be fixed to or splined on the driven shaft, with cylindrically- or spherically-dished spring steel members or discs 15 arranged between the plates. When the clutch is fully engaged, the discs 15 are completely flattened. The discs are carried alternately by the two plates, or all by one plate, and means are provided for limiting the separation of the plates so as to pre-load the discs. As shown in Fig. 2, a rivet serves to clamp the plate 10, a disc 15, and a friction facing 12 together, the head 17 slidably engaging a hole in the plate 11 while an enlarged head 16, accommodated in an aperture in the facing 13, limits the separation of the plates. As shown in Fig. 6, a tubular rivet 20 fixes the lining 13 to the plate 11, while a rivet 21, passing through the rivet 20, serves to limit the separation of the plates. Alternatively, tongues on one plate may be bent over to engage the outer face of the other plate so as to limit the separation.
Patent GB-982009-A (GB)
Title: Signal translating system
IPC: H04S1/00
Filed: 1962-08-08
Abstract: 982,009. Stereophonic systems. RADIO CORPORATION OF AMERICA. Aug. 8, 1962 [Aug. 25, 1961], No. 30445/62. Headings H4J, H4L and H4R. In a stereophonic transmission system in which two stereophonically related signals are applied to two control electrodes of a single discharge tube having a single cathode so that two stereophonic signals may be derived from two further electrodes of the tube, one of the derived signals is a function of the total cathode current while the other one is a function of the variation in the division of current flow between said further electrodes. Thus, left and right-hand signals may be applied to the suppressor and control grids of a pentode tube (Fig. 1 and Fig. 2, not shown), the amplified left-hand signal A then being derived from variation in current flow between the anode and screen grid via centre-tapped transformer winding 34 while the right-hand signal B is derived from variation of the total cathode current flowing in winding 39. Alternatively, a double-triode of the beam controlled type may be used (Fig. 3, not shown), the inputs being applied to the control grid and one of the beam-control electrodes while the outputs are derived from the two anodes. In Figs. 4 and 5 (not shown) a pentode valve for amplifying sum and difference stereophonic signals is depicted, suitable arrangements for obtaining the original left and right-hand signals being incorporated in the output circuits. Fig. 6 shows a receiving circuit to which sum and difference signals occurring as amplitude and frequency modulation respectively may be applied. The signal A+B (amplitude modulated) obtained from I.F. circuit 122 is applied to a control grid 142 of a combined amplitude, angle modulation detector pentode 124 so as to vary the total cathode current, the signal A-B being ineffective for this purpose. The output signal across the anode and screen grid is taken to a sum and differencing network 125 where the voltage A+B is developed across resistors 170 and 168, 169. The signal from circuit 121 which is resonant at the centre frequency of the I.F. is dependent on A-B and is effective in varying the instantaneous anode current whereby voltages A-B and - (A-B) are developed across resistors 168 and 169 respectively. The output signals A and B are then derived from network 125 and applied via amplifiers 128 and 129 to loudspeakers 130 and 131 respectively. Potentiometer 170 is used to " balance " the left and right-hand signals. A further electrode may be introduced into the tube in order to reduce cross-talk between the signals.
Patent GB-245919-A (GB)
Title: Improvements relating to the control arrangements of the moving parts of wireless telegraph and telephone apparatus
IPC: H03J1/10
Filed: 1924-12-18
Abstract: 245,919. Powell, W. H. Dec. 18, 1924. Condensers for wireless telegraphy or telephony comprises an angularly adjustable part, a pulley wheel or its equivalent fixed to that part, and a tensioned flexible member secured to the periphery of the pulley wheel so as to tend to rotate it, and a spring arranged to co-operate with said part to rotate it against the tension of said flexible member so as to wrap the latter on the pulley. Fig. 1 shows a condenser 10, to the spindle of which is keyed a grooved pulley 12, preferably of ebonite, to which is secured a cord 13 by means of a screw 14. The other end of the cord is secured by means of a screw 15 to a second pulley 16, between the flange of which and the face 17 of a journal bearing is a cork friction washer 20. which is slightly compressed by means of a handle 18 and lock-nut 19 on a screwed portion at the end of the pulley spindle. A spring 21 is coiled about, and secured to the spindle, and is also secured to a screw 23 which may constitute a terminal, the spring tending to wrap the cord about pulley 12 against the, friction of the washer 20. The handle 18 is rotated in one direction to wind the cord on the pulley 16 and rotate the condenser vanes, reverse rotation allowing the spring to act to wrap the cord on the pulley 12. Owing to the relative diameter of the pulleys, finer adjustment is obtained than by direct drive of the spindle and the arrangement further eliminates hand capacity effects.
Patent GB-371322-A (GB)
Title: Improvements relating to the gas-exhaust devices of explosion motors
IPC: F01N13/00
Filed: 1930-10-15
Abstract: 371,322. Aircraft wings : exhaust silencers. ROVEROLIS DE RIGAUD DE SAINT-AUBIN, J. C. M., 66, Rue de Ponthieu, Paris. Oct. 15, 1930, No. 30833. Convention date, Oct. 16, 1929. Void [Published under Sect. 91 of the Acts]. Addition to 332,109, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of]. [Class 4.] To prevent the formation of ice on an aircraft wing and to facilitate and silence the exhaust of the engine, the exhaust gases are discharged into the space between the leading edge and the main spar 6 of a wing, or into the spar itself which forms an expansion chamber, and issues from a series of holes 10 in the upper surface on a line parallel to the spar at the position of maximum depression. Alternatively the gases may be led into a chamber on top of the wing and issue through holes in its upper cambered surface. The exhaust pipes 4 are bent outwards horizontally parallel to the spar and are provided with a series of holes some of which may be covered by a sliding sleeve 21, Fig. 4, to vary the silencing effect. The end 26 of the exhaust pipe is chamfered and covered with a perforated plate. The holes in the wing surface also may be closed by sliding valves 28, Fig. 6, moved by arms 33 pivoted at 34.
Patent GB-1473694-A (GB)
Title: Internal combustiono engine emitting exhaust gases having a lower content of toxic constituents
IPC: F02B51/02
Filed: 1974-07-11
Abstract: 1473694 Catalytic igniter INSTYTUT CIEZKIEJ SYNTEZY ORGANICZNEJ BLACHOWNIA 11 July 1974 [12 July 1973] 30838/74 Heading F1B An I.C. engine comprises a catalytic igniter 1 which extends into the combustion chamber and which may be attached either to the cylinder head 2 or to the piston 3. The igniter may be in the form of a rod or grid or perforated metal sheeting, and may be produced from nickel or alloys of nickel and iron, chromium and iron, or iron, chromium, titanium and carbon.
Patent GB-1444850-A (GB)
Title: Device for the resilient support of skins in machines for processing skins and hides
IPC: C14B1/02
Filed: 1974-07-12
Abstract: 1444850 Resilient support of skins in machines for processing skins LUIGI RIZZI & C SpA 12 July 1974 [8 Aug 1973 18 June 1974] 30893/74 Heading C6C A device in a skin treating machine for the resilient support of a skin having variations in thickness comprises a beam 19 displaceable relatively to an operating cylinder 5, on which beam there is mounted on plane guides 27 a resilient bearing 28 being transversely adjusted by adjusting units 24, 25 located at regular spaced intervals over the entire length of the bearing so as to cause the bearing to assume a transverse line best adapted to the thickness of the skin being processed, and hydraulic means 22a-23b for setting the basic treatment thickness and for increasing this thickness in accordance with the dimensions of the skin. The resilient bearing may be of parallelopiped form and of constant cross-section over the entire length of the operating tool, the bearing being displaceable within the guides of the displaceable beam so as  to assume various positions according to the average transverse thickness of the skin. Preferably the resilient bearing has a parallelopiped shape, with grooves or reduced portions in the rear part thereof to form a zone of greater elasticity able to absorb the deformations due to the variations in thickness of the skin being processed. The resilient bearing may be formed from materials of varying elasticity firmly connected together so as to be able to absorb local or general deformations of the skin being processed. Alternatively the resilient bearing, as well as having a parallelopiped shape with longitudinal grooves, or made of material of different elasticity, is provided with a plurality of vertical transverse holes near the rear end of the bearing, distributed along the bearing. The distribution of the holes in the longitudinal direction is either uniform or varied at various intervals or in different positions, the holes also having different diameters and shapes. The transverse holes may be grouped to correspond with, and located adjacent, units adjusting the position of the bearing. Plugs may be introduced into some or all of the holes, the plugs being of an elastic or rigid material, for varying the elasticity of the bearing in the transverse direction.
Patent GB-189978-A (GB)
Title: Improvements in gauges for indicating the efficiency of a steam condenser
IPC: G01L7/18
Filed: 1921-11-18
Abstract: 189,978. Scanes, A. E. L. Nov. 18, 1921. Condenser systems.-For indicating the condenser or vacuum efficiency of a steam condenser, .a gauge of the type described in Specification 28753/12 is employed, comprising a glass U-tube 3 disposed in a three-part container 4, the middle compartment 9 having a glass &c. window 19 and a scale 34. The sealed end 5 of the U-tube is shaped to hold a pad 7 of absorbent substance, e.g. a sponge. This sponge is saturated with water and mercury 29 is inserted into the tube, so that a small amount 30 of water is left above the mercury in the long leg. 25, 26 are water inlet and outlet ports respectively and 23 is a port connecting the chamber 22 with the vacuum space of the condenser. In the form shown in Fig. 2 the water passes through the coils 33 adjacent the long leg of the U-tube before passing through the inlet 25. To indicate the vacuum efficiency of a jet condenser the port 23 is connected with the condenser vacuum and the inlet 25 with the condenser hot well. A pressure will therefore be generated in the sealed end of the U-tube due to the vapour tension of the water therein which will correspond to the theoretically possible vacuum within the condenser. The actual vacuum of the condenser exists in the space 22, so that the difference in levels of the mercury will be a measure of the vacuum efficiency of the condenser. In the case of a surface condenser the inlet 25 is connected either to the hot well or to the discharge of the cooling water circulating system, the gauge then indicating vacuum efficiency or condenser efficiency respectively. If all the liquid evaporates from the sponge 7 the space 22 is connected with the atmosphere by means of a two-way cock at the port 23 so that the mercury rises in the sealed end of the tube and the sponge is re-saturated by the water 30. In a modification the sealed leg of the U-tube is contained entirely within the casing 9 and the upper part 11 is dispensed with.
Patent GB-216800-A (GB)
Title: Improvements in garment hangers or shoulder forms
IPC: A47G25/48
Filed: 1923-12-08
Abstract: 216,800. Settle, W. S. Dec. 8, 1923. Coat and like hangers. - In a hanger provided with clamping arms the extremities of the arms 3 have portions spaced apart supporting a friction member 5 that bridges the top of the shoulder bar. The arms are operated by handles 10 which engage bends comprising cam surfaces on the arms to raise, them or to hold them depressed.
Patent GB-244917-A (GB)
Title: An improved advertising and electrical testing device
IPC: G01R31/02
Filed: 1924-12-29
Abstract: 244,917. General Electric Co., Ltd., and Turner, J. F. Dec. 29, 1924. Detecting faults. - A device for electrically testing the filaments of thennionic valves &c., comprises a container a, Fig. 1, decorated similarly to the cartons in which individual valves are packed but of enlarged size. One side of the container is provided with a window b of transparent material shaped to represent the bulb of a valve. Inside the container is a pocket to hold a dry battery which is clipped to a block of insulating material carrying a lamp socket, the lamp being arranged to show through the window b. Two flexible conductors m, n, Fig. 4, connected respectively to one terminal of the battery and one terminal of the lamp socket, pass through holes in the container and are connected to spring blades q, r mounted on an insulating part s with the upper part t so shaped that the springs q, r can be engaged only with the filament pins of a valve to be tested. The lamp then lights if the filament is unbroken. A pocket w is provided in the container a to hold the tool during transit. Two lamps may be arranged within the window b using a common dry battery, the lamps being chosen so that one lights when placed in circuit with a valve filament of low current consumption and the other lights when placed in circuit with a valve filament of larger current consumption, visual indication also being given by the valve filament itself. In this case the conductors from each lamp are connected with sockets at the back of the casing, and the flexible conductors attached to the tool are provided with pin contacts adapted to engage either socket. According to the Provisional Specification, resistances may be included in the lamp circuits.
Patent GB-227108-A (GB)
Title: A method of obtaining a more favourable construction of locomotives, locomobiles and the like considered from the thermal and technical production point of view
IPC: B61C1/00
Filed: 1924-12-30
Abstract: 227,108. Ellyson, F. W. Dec. 31, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Superheating-chambers heated by combustion gases.-A boiler for a locomotive or the like is built up of concentrio shells forming an inner steamcollecting chamber 1 and annular superheating, generating, and feedheating chambers 2, 3, 4. The heating gases from an annular burner 9 pass backwards and forwards through the spaces between the chambers. The superheating and generating chamber may be divided by helical partitions.
Patent GB-1273788-A (GB)
Title: Improvements in radiometer systems
IPC: G01K11/00
Filed: 1969-06-19
Abstract: 1,273,788. Radiation pyrometer. THOMSON-CSF. June 19, 1969 [June 20, 1968], No.31192/69. Heading G1A. A radiation pyrometer for measuring the temperature of a source 1, Fig. 2, by comparing the emission with that from a reference source 2 comprises radiation filters 9, 10 passing adjacent bands of equal width to a radiation amplifier 11, filters 12, 13 which may be identical with filters 9, 10 for separating the emissions from the respective sources, detectors 14, 15 which may be bolometers, and a comparator to which the detector outputs are fed and whereby noise errors introduced by the amplifier are eliminated. The amplifier may be of a variable gain and may be controlled by a square wave signal to modulate the radiation and thus increase the stability of the system.
Patent GB-808935-A (GB)
Title: Improvements in stools
Inventor: JR GEORGE INGRAM
IPC: A47D1/00
Filed: 1956-10-15
Abstract: 808,935. Furniture combinations. AIRBORNE SERVICE EQUIPMENT Ltd. July 19, 1957 [Oct. 15, 1956], No. 31301/56. Classes 52(2) and 52(3) A stool, especially for children, designed to simulate the form of a horse, has a pear shaped seat 3 with the narrow end flattened at 4 to provide a table. The legs 7 supporting the narrow end are in the form of an inverted U-frame with the loop of the U extending above the table 4 to constitute a gripping handle for the occupant of the stool.
Patent GB-245272-A (GB)
Title: Improvements in and relating to electrical controllers
IPC: H01H19/56
Filed: 1924-12-31
Abstract: 245,272. Amberton R., and Walton, J. R. Dec. 31, 1924. Controllers with auxiliary switches.-A rheostatic motor starter comprises a rotary wiper contact f and stationary roller contacts g shaped and disposed so as to produce a step-by-step notching effect; an auxiliary switch k, l closed by lost motion between the spindle b and the rotary rheostat arm e is connected to the operating coil 3 of a single-pole line contactor 10, the rheostat contacts being connected to the opposite pole of the line. Any backward movement of the spindle, before the full-on position, causes the line-contactor to open, and return to the initial position is necessary in order to reclose it. Specifications 28527/13, 151,206, 188,975, and 206,574, are referred to.
Patent GB-1277873-A (GB)
Title: Improvements in or relating to honing
Inventor: SANDERS THEODORUS CARLTON
IPC: B23Q11/00
Filed: 1968-07-01
Abstract: 1277873 Honing T C SANDERS 26 June 1969 [1 July 1968] 31385/68 Heading B3D [Also in Division F2] A method of honing a hollow workpiece comprises temporarily securing to the workpiece a sound damping member or device having a sound absorbing surface in contact with the workpiece. The workpiece 10 may be of steel having a length of 3 ft. and 5 inches diameter and the clamping device is at least a quarter of the length of the workpiece and consists of two pieces of soft wood 11, 12 which are connected together by hinges 13 and can be releasably clamped to the workpiece. More than one device may be clamped to the workpiece. Aliningofdamping material, such as natural or synthetic rubber, glass fibre or the like, may be fitted to the device. For workpieces other than cylindrical e.g. rectangular, the device may consist of flexible or deformable material. The device is stated to prevent the high pitched squeal produced during honing.
Patent GB-1191883-A (GB)
Title: Improvements in or relating to Pneumatic Tyre Valves
IPC: B60C29/04
Filed: 1967-07-07
Abstract: 1,191,883. Valves. MICHELIN & CIE (COMPAGNIE GENERALE DES ETABS MICHELIN). 7 July, 1967 [19 July, 1966], No. 31509/67. Heading F2V. A valve for inflating a pneumatic tyre inner tube has a duct 2 attached to the inner tube and an extension 10 releasably attached to the duct, a packing ring 7 being inserted in an annular chamber 6 between the duct and the extension so that the ring 7 is compressed to a degree which does not depend upon the degree of tightness of the extension 10. The duct 2 has a circular flange 4 embedded in a rubber flange 1 welded to the inner tube and has a screwthread 5 to engage the extension 10 which has a grooved face 14 to grip the flange 1.