baber/WOPTO huggingface dataset:
Patent GB-685906-A (GB)
Title: Apparatus for moulding sponge rubber articles
Filed: 1951-08-23
Abstract: 685,906. Moulding sponge rubber. HOWARD, J. A., and TALALAY, J. A. Aug. 23, 1951 [Aug. 23, 1950], No. 19912/51. Class 87 (ii). In a mould in which an upper section is supported on a frame for rotation about an axis parallel to one edge thereof and also for translation to and from a lower section, means cooperating with the supporting means of the upper mould section are provided for counteracting a portion of the weight of the upper section in the vicinity of the edge to which the axis of rotation of the upper section is parallel. The mould, comprising the upper and lower sections 42, 40, is supported in a frame 10, 12, the lower section having lugs 44 which pass between pairs of uprights 28, 36 and are fastened to them. The upper mould section likewise has lugs 46 which also pass between the uprights 28, 36, but these lugs carry pins 48, or 50, which fit in slots 74 machined in guide blocks 72 attached to the uprights. The piston rods 60 of air cylinders 52 are connected to the upper mould section 42 and the mould is thus opened and closed by these air cylinders, the upper sections then pivoting on the pins 48, 50. The location of the pivot pins in the slots 74 allows them to rise or fall, so when the pressure in the mould rises enough to overcome the weight of the upper mould section plus any air pressure in the cylinders 52 tending to hold the mould closed the upper section lifts away from the lower and a gap appears between the edges of the mould sections by the pivot pins and acts as a vent for excess pressure in the mould. The weight of the upper section is counteracted near the edge by springs 78 which tend to lift the pins 48, 50. By adjusting the spring pressure by means of nuts 92 the venting pressure may be adjusted. A limit to the amount of opening of the mould sections may be set by nuts 94 on the threaded rods 84 which transmit the upward force of the springs 78 to the pins 48, 50. The mould has application to the manufacture of sponge rubber articles in which excess gas is formed during the expansion of foamed latex in the mould. For a process in which the foam is coagulated, inlet and outlet nipples are provided for the fluid coagulant.
Patent GB-853681-A (GB)
Title: A soil core extracting tool
IPC: G01L9/00
Filed: 1958-06-23
Abstract: 853,681. Gardening tools. LONGSTAFF, R. Oct. 21, 1958 [June 23, 1958], No. 19960/58. Class 6(2). A hand tool for extracting cores of soil from the ground comprises two, sharpened, semi-cylindrical blades F, each secured to the lower end of a shaft comprising two parts I and B fixed one on each side of a block C. The blocks are each formed with one plane face and with a hole through the centre of the plane face for the reception of a pivot pin H, the blocks being pivoted together with their plane faces in contact. The blocks are also provided with further holes whereby the pivot pin and the contacting faces of the blocks may be lubricated. The two shaft members I are urged towards each other by a spring D and one shaft member is provided with a footpress E. The blades F are formed with holes G for keying the soil between the blades.
Patent GB-1370254-A (GB)
Title: Seat for ball or gate valves
IPC: F16K3/02
Filed: 1972-05-01
Abstract: 1370254 Valves TK VALVE MFG Inc 1 May 1972 [10 May 1971] 20120/72 Heading F2V A seat for a ball or gate valve comprises a metallic ring 20 sealingly engaged in the valve body 10, which ring is spring biased towards the closure member and provided with an annular recess 26 which in turn accommodates an annular element 28 sealed within the recess and provided with a channel 38 to provide fluid communication from the body cavity 12 to the back side of the element. The element 28 may be made of plastics material, synthetic or natural rubber. When the valve is closed and the pressure is greater in the inlet, the inlet pressure acts on the back of the ring to maintain closure whereas when pressure is greater in the outlet 12, the closure is maintained by fluid pressure acting through the channel to the back of the element.
Patent GB-733151-A (GB)
Title: Improvements in or relating to the attachment of flexible sheet material to a support
IPC: A47C31/02
Filed: 1951-08-27
Abstract: 733,151. Friction-grip fastenings. SILVER & EDGINGTON, Ltd., [trading as EDGING- TON, B., [Firm of], and TAYLOR, W.]. Aug. 27,1952 [Aug. 27, 1951]. No. 20181/51. Class 44. [Also in Groups X and XIV] Covering material 12 is attached to the top of a table 10 or the seat of a chair by folding a portion of the material into a groove 13 provided around the table &c. of depth greater than the width of the top of the groove, pressing the part 14 of the sheet adjacent its edge into the groove to form a double fold of U-shape and thereafter, as a separate operation, pressing into the groove a wedging strip, e.g. a cord 15 arranged to clamp the material against a side wall of the groove. The sheet material is placed over the table, &c. so that its marginal portions overlie the edges of the grooves, and a hand tool with a rotatable pressing disc, or a flat pressing blade is used to doubly fold the marginal portions into the grooves. A wedging strip of circular cross section of string or resilient plastic is then pressed to lie wholly within the groove. The groove may be wider at the bottom than at the top, and a decorative strip may be pressed into the groove over the string, &c. The operation may be performed by a machine.
Patent GB-417478-A (GB)
Title: Improvements in or relating to steam superheaters for marine and like smoke tube boilers
IPC: F22G7/14
Filed: 1933-07-17
Abstract: 417,478. Steam superheaters. SUPERHEATER CO., Ltd., and MELHUISH, H., Bush House, Aldwych, London. July 17, 1933, No. 20182. [Class 123 (iii).] A smoke-tube superheater in a return-tube boiler with a centre and wing nests of smoketubes 5, 6, 7 has only two header chambers 1, 2, which are arranged opposite one or both of the spaces between the tube nests, the inlet or outlet ends 18 of the elements in a wing nest being extended across the front of the centre nest. The extended ends 19 of the wing elements may be formed separately from the elements and joined thereto by separable connections 21. The header chambers may be circular or triangular in cross-section, and may be arranged one in front of the other opposite a space between the tube nests.
Patent GB-614197-A (GB)
Title: Improvements in water heating systems
IPC: F24H9/20
Filed: 1946-07-05
Abstract: 614,197. Thermally-actuated valves. BARNES, N., WHITAKER, A., and JESSEL. R. July 5, 1946, No. 20190. [Class 135] [Also in Group XIII] A water heater is provided with one or more thermostatic devices which are responsive to changes in the temperature of the water in the outlet section or delivery pipe of the heater and servo to control a valve which regulates the flow of water through the heater and also to control the heat supplied to the heater, the operation being such that if the temperature of the outlet water rises above a predetermined value the valve is opened progressively to the fully open position and thereafter the rate of heat supplied is progressively reduced. In an auxiliary gas-fired water heater, Figs. 1, 3 and 4, for insertion in the delivery pipe of a hot water system provided with <a> main water heater, in-flowing water enters the lower part of a valve-housing 2 containing a valve 3, and after passing through ports 5 (valve 3 being normally closed) flows to a device 8 for ensuring that gas will only be admitted to the burners when water is flowing, and then to the heat exchanger (not shown). The heated water returns to the device 8 from the heat exchanger and 'then flows successively through the parts of the housings 13 and 2 containing temperature responsive bellows 15, 4 which respectively actuate a gas valve 14 and a water inlet valve 3. In operation, a progressive rise in the water temperature at the outlet connection 20 will expand the bellows 4 and cause a corresponding opening of the water inlet valve 3 to allow more water to flow. If the outlet temperature exceeds the predetermined maximum with the inlet valve 3 fully open., the bellows 15 will operate and cause the gas valve 14 to close and reduce or cut off the heat supply. In an alternative arrangement (Fig. 7), a single thermostatic device may be used to control the water inlet and gas supply valves. Water enters the housing 28 through a port 30, passing through ports 31 and conduit 34 to the aforementioned device 8 and after passing through the heat exchanger as before described, the heated water re-enters the housing 28, and passing over the bellows thermostat 27 which controls both water inlet and gas supply valves 32 and 42 leaves through the port 38 leading to the outlet. The housing 28 is divided by a partition 48 having a central communicating aperture between the right- and left-hand portion of the bellows 27. Gas enters through port 41, the flow of gas through port 43 to the burners being controlled by valve 42. As in the previous arrangement the bellows 27 is proportioned so that the water inlet valve 32 is fully opened before the gas valve 42 commences to close. If the main heater is supplying water at the required temperature, the water inlet to the auxiliary heater will be fully open and the gas valve will remain closed. The invention may be applied to an auxiliary heater taking water from any source of supply. Other forms of thermostat may be used to control the valves.
Patent GB-270141-A (GB)
Title: Improvements appertaining to the drawing rollers of spinning, doubling, twisting andlike machines
IPC: D01H5/74
Filed: 1926-08-17
Abstract: 270,141. Rhodes, A., and Rhodes, C. Aug. 17, 1926. Rollers and roller heads.-The carrier rollers of spinning, doubling, and twisting machines. especially those for long fibres such as wool, mohair, and the like, are driven from the back roller shaft C by means of segmental racks or chains 2, one line of carriers being driven from one end of the frame by a wheel 3<e>, Fig. 1, chain 2, and wheels 3d, and the other two lines from the opposite end by wheels 3b, 3<c>, Fig. 3, chain 2 and wheels 3, a<1>, a. The racks or chains are suitably guided by members 4 supported by brackets 6 and struts 16. If the wheels 3<d>, 3 are changed, the chain at one side of the frame is maintained in gear by adjusting the bracket 6, and that at the other side by adjusting a bracket a<3> which carries the wheels a<1>, a. The front roller shaft B is driven by the usual wheel' 12 and drives the back roller shaft through the draft gearing 8 - - 11. When chains are employed they are provided with suitable runners to engage the guides.
Patent GB-238380-A (GB)
Title: Improvements in or relating to egg-cups
IPC: A47G19/28
Filed: 1924-08-27
Abstract: 238,380. Earl, E. A. Aug. 27, 1924. Egg-cups are provided with one or more integral crescent or channel shaped portions A projecting from the sides of the cup and communicating with the interior thereof to hold shell removed from the egg.
Patent GB-1513812-A (GB)
Title: Automatic cut-out device for a generator and battery fed circuit including non-essential loads
IPC: H02J3/14
Filed: 1975-05-14
Abstract: 1513812 Load-shedding systems SOC ITALIANA VETRO SIV SpA 14 May 1975 [15 May 1974 12 Feb 1975] 20330/75 Heading H2H In a circuit 20 of essential loads and a circuit 24 of non-essential loads jointly supplied from a generator 16 and battery 18 connected in parallel, the circuit 24 is automatically disconnected by relay contacts 28 when the battery voltage falls below a predetermined value due to the power taken from it exceeding the powers applied to it from the generator, the contacts 28 being controlled by a unit A, Figure 2 (not shown) comprising a differential amplifier (30) whose two inputs receive potentiometer-derived voltages respectively representative of the battery voltage and the predetermined value and whose output controls a switching transistor (T4) in series with the relay coil (R).
Patent GB-621951-A (GB)
Title: Improvements in diaphragm valves
IPC: F16K25/02
Filed: 1945-08-08
Abstract: 621,951. Valve accessories. SAUNDERS VALVE CO., Ltd., and TRUMP, A. L. Aug. 8, 1945, No. 20338. [Class 135] In a valve of the kind having a flexible diaphragm adapted to seat on a weir extending across the fluid passage, compressed air or other fluid is admitted to the space between the diaphragm and the weir by one or more jets and directed on to the concave surface of the weir to remove any accumulated sediment. As shown, compressed air is supplied by piping 9, 11 to passages 13, 131 drilled in the weir 2. The passage 13 opens at right angles to the face of the weir and its jet is variably deflected on to the weir as the diaphragm 4 descends. The passage 13<SP>1</SP> is directed along a chord or tangent of the concave surface of the weir. The passages 13, 13<SP>1</SP> are finally closed by the diaphragm, but alternatively the compressed air may be controlled by a valve in the piping 9, 11 arranged to move with the diaphragm. The jets may be arranged to direct compressed air across the weir and may as before be sealed by the diaphragm or arranged to turn about pivots against spring action as the diaphragm descends. When the diaphragm valve is operated by compressed air acting on a piston, the supply for the jets is derived from the same source. Specifications 434,664, 434,665, 434,684, 439,701, 442,790, 516,526, 516,569, 517,887, 518,286, 533,116, 559,679, 562,084 and 587,711 are referred to.
Patent GB-233214-A (GB)
Title: Improvements in and relating to powdered fuel furnaces
IPC: F23C99/00
Filed: 1924-08-28
Abstract: 233,214. Hold, C. Aug. 28, 1924. Pulverulent-fuel furnaces. - The combustion chamber a is provided with a concave wall, preferably pear shaped, and is enclosed by a wall b forming an air-heating jacket c from which air is drawn by a fan and delivered with coal dust through the burner d. Air is also supplied to the combustion chamber through valve-controlled pipes f which may be set in the wall in such a manner that the whirling motion of the gases in the combustion chamber is assisted by the entering streams of air. A perforated air-supply cone m is arranged in the ash-discharge opening at the base of the combustion chamber. The combustion products escaping from the combustion chamber mav be utilized in a steam-boiler flue e having helical corrugations h.
Patent GB-1099292-A (GB)
Title: Electric clutch-brake motors
IPC: F16D67/02
Filed: 1965-05-14
Abstract: 1,099,292. Motor driving arrangements. SINGER CO. May 14, 1965 [May 20, 1964], No. 20386/65. Heading H2A. [Also in Division F2] In a clutch-brake motor of the type in which a stator 16 is mounted on a tubular frame portion 15, the rotor 18 is mounted on a hollow shaft 21 and carries a driving clutch face 79 whilst the driven shaft 38 carries a driven clutch-brake member 76 and is supported only by a bearing 34 in the housing and a further bearing 40 within the hollow shaft 21. The housing 10 may be of cast aluminium having cooling fins 83 and carries cast iron end closures 11, 12. When the rod 82 is deflected to the right, a lever 53, pivoted at 52, acts against a bearing cup 45 so as to displace the driving shaft 38 and clutch plate 76 against the end of the rotor 18. Movement of rod 82 to the left disengages the clutch 77, 79 and allows a tapered brake facing 78 to contact the surface 80 of the end closure 12. The hollow shaft 21 is journalled in bearings 22, 23, the balls of which become slightly displaced when the clutch is engaged, springs 31 balancing the clutch thrust. The clutch-operating mechanism and driven shaft may be removed simply by releasing bolts 14. In Fig. 6 (not shown), details 10, 11 are combined in a single iron casting. The motor may drive a loom.
Patent GB-754792-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B17/56
Filed: 1954-07-13
Abstract: 754,792. Photographic cameras PAILLARD SOC. ANON. July 13, 1954 [Aug. 11, 1953], No. 20420/54. Class 98 (1). A handle comprising a grip 1 secured to a support 6, is attached in a removable manner thereby to a camera and the handle is located centrally on one face of the 'camera housing, the grip being inclined outwardly from the rear to the front of the camera and housing the end of the shutter release cable 13. Preferably, the grip is provided with a conical cavity 3 and the release cable 13 is accommodated therein and push button 20 extends beyond the end of the grip adjacent the operator's thumb. The grip may be provided with two lugs 7, 8 (not shown), to prevent the pushbutton 20 from being actuated accidentally. As shown in Fig. 3, disc 23 is provided with two screw-threaded members 24 and 25 and can be secured to knob 26 by screws 27 so that either 24 or 25 is presented for fixing to screwed boss 31 on the bottom of the camera. The support 6 may be substantially U-shaped as shown in Fig. 4 or one side of the U may be omitted or the support may be arranged centrally so that it has the shape of a T. In an alternative form the end of the release cable may be housed in a groove in the grip 1 and secured therein by means of rings. The grip may be conical in shape and its surface may be provided with longitudinal grooves.
Patent GB-1421093-A (GB)
Title: Frequency discriminator circuit arrangement
IPC: H03J7/08
Filed: 1974-05-09
Abstract: 1421093 Automatic tuning control of frequency discriminators MULLARD Ltd 9 May 1974 20448/74 Heading H3A A resonant circuit 15, 9, 12 in a discriminator is automatically tuned to the incoming frequency by integrating the discriminator output and feeding it back to control elements 15, 12 in the resonant circuit. Sound i.f. signals in a TV receiver are fed via limiter 1 direct to the first input of a phase comparator 3 and via the resonant circuit to a second input. The comparator output is applied to integrator 18, 19 which produces a control voltage for varactor diodes 15, 12 which, together with a gyrator 9, form the resonant circuit of the discriminator. The control signal may also be used to adjust the tuning of other resonant circuits in the receiver 14, 8, 11 and 16, 10, 13.
Patent GB-1313694-A (GB)
Title: Methods for removing a portion of an organic insulating coating from an insulated wire to permit making of electrical connection to the wire
IPC: B44D3/16
Filed: 1970-04-29
Abstract: 1313694 Stripping insulation TEXAS INSTRUMENTS Inc 29th April 1970 [25 June 1969] 20539/70 Heading C7E [Also in Division C5] A method of removing the insulation from a limited part of a metal wire having organic electrically insulating material thereon so as to permit electrical connection to be made to the wire, wherein the said limited part of the wire is immersed in a bath of fused alkali metal hydroxide and fused alkali metal nitrate so as to oxidise and remove the insulation therefrom, while permitting said insulation to remain on the remainder of the metal wire. The stripped wire may then be brightened by immersion in nitric acid. The bath may also contain alkali metal chloride Sodium, potassium or lithium salts may be used and the temperature is dependant upon the alkali metal compounds used therein e. g. in the case of sodium compounds, the bath temperature is 300‹C. to 390‹C. The electrical coatings maybe polyvinyl, polyester, polyamide, polyamideimide, polyurethane, polystyrene, polythylene, polypropylene or polycarbonate material.
Patent GB-404886-A (GB)
Title: Processes for making pigments
IPC: C01G9/08
Filed: 1933-07-24
Abstract: <PICT:0404886/III/1> Compounds of particle size suitable for use as pigments are obtained by volatilizing a pigment-forming metal such as zinc, mercury or lead, conveying the vapour in suspension in an inert gas to a reaction zone into which sulphur, selenium or tellurium is introduced, and separating the reaction products from the inert gas. The production of zinc sulphide is particularly described.  Zinc vapour may be obtained directly from an ore reduction furnace, the inert atmosphere being provided by the products of combustion of the fuel used, or may be obtained from metallic zinc in retort 2.  A gas producer 4 supplies carbon monoxide and nitrogen.  Sulphur in solid, liquid or gaseous form and preferably in slight excess is introduced into combustion zone 7 provided with baffle plates 8.  The temperature therein should be about 700 DEG  C.  The product is drawn by fan 11 to separator 12, and thence to bagroom 13.  If the product contains free sulphur, it is heated to about 500 DEG  C. in an atmosphere of steam, for example, in a vertical tube furnace.
Patent GB-1455397-A (GB)
Title: Electroconductive paper
IPC: G03G5/00
Filed: 1974-05-13
Abstract: 1455397 Electroconductive paper IMPERIAL CHEMICAL INDUSTRIES Ltd 2 May 1975 [13 May 1974] 20975/74 Heading D2B An electroconductive paper comprises paper containing a proportion of conductive fibres made from at least one man-made polymeric material, the fibres having an integral surface layer impregnated with finely-divided particles of a conductive material. The latter may be carbon black. The conductive fibres may be prepared from a polyamide, polyolefin, polyvinyl derivative e.g. poly(vinyl chloride), polyacrylonitrile, cellulose ester e.g. cellulose acetate, or a conjugate fibre which may be polyamide or polyester based. The paper may be made by incorporating the conductive fibres into paper stock prior to sheet formation. A rosin/alum sizing system may be used in the manufacture of the paper.
Patent GB-1536444-A (GB)
Title: Apparatus suitable for use as stairways stepladders and the like
IPC: E06C1/383
Filed: 1976-05-21
Abstract: 1536444 Step-ladders; movable treads G LOIX 21 May 1976 [26 May 1975 15 April 1976] 21070/76 Heading E1S A staircase or step-ladder which is, in the preferred embodiment, convertible into a hand trolley (Fig. 8), has treads, e.g. 15, which are pivotally mounted on upper, 2, and lower, 1, stringers, the treads being spaced above the lower stringers by, e.g. blocks (9), Fig. 3 (not shown) to keep them horizontal at different angles of elevation, the stringers being pivotally mounted at their upper ends between arms 3, and being arranged so that they can be brought up into a horizontal position, Fig. 2 (not shown) where the upper stringers 2 sit on the lower stringers 1, and the treads form a horizontal platform. In the step-ladder/hand trolley conversion (Figs. 7-11) (Figs. 9, 11 not shown) latching bars 33 and 42 are provided to restrain the apparatus in one or the other configuration, and a platform 52 is provided, pivotally mounted on supports 19, 20. Wheels 51 (Fig. 7) may be provided at the bottom of stringers 2, as may fixed wheels 25 and steering wheels 26.