baber/WOPTO huggingface dataset:
Patent GB-595513-A (GB)
Title: Improvements in or relating to electrical ducts or conduits for use in building construction
IPC: H02G3/04
Filed: 1945-07-04
Abstract: 595,513. Conduits. STORY, J. G., and CLARK, J. S. July 4, 1945, No. 17093. [Class 36] A metal conduit for electric conductors carrying different kinds of currents consists of a trough base and a cover, both magnetisable and conducting, the trough having two or more channels with separating webs forming with the cover alternative paths for currents induced by the conductors. One form suitable for a dado, Figs. 1, 3, with two equal channels 3, 4 consists of a base 1 and cover 2 both of plated mild-steel sheet, the base 1 having a web 8 slotted at 11 to give access to elongated non- magnetic nuts 16 and the cover 2 and junction plate 19 being secured by non-magnetic screws 17. The edges of the base 1 and cover 2 are strengthened by turned flanges 5,1.4. The channels 3, 4 are for telephone and radio loudspeaker leads, and the perforations 11 produce a high reluctance magnetic path between the channels. The leads are retained within the channels by spring straps 20 spot-welded at 21 to the web 8 and engaging the flanges 5 at their free ends. In another form suitable for a skirting-board, Fig. 6, two equal channels 26, 27 and a larger channel 25 are provided, the channel 25 being for power and lighting leads. The base 23 and cover 24 have turned flanges 28, 41 and the webs 34, 35 between the channels retain nuts 47. The spring straps 52, 57 have flanged or crimped ends engaging either the flanges 29 or metal strips 56 secured by spotwelding to the webs, similar strips 46 serving to retain the nuts 47. The third form, Fig. 15, suitable for use in strips comprises a cover 62 and base 61, the latter consisting of a base plate 63 to which are spot-welded plated mild-steel sheet members 69, 70 to form two equal channels 66,'68 and a larger central channel 67. The side walls 70 have shoulders 71 and lips 72 to engage clamp-plates in the grooves 73 between the channels and also within the channels. The former are carried by bolts retained on the cover 62 and the latter 91, 94 carry strip springs 93, 96 which engage the leads to hold them in place. In order to provide clearance for bulkhead bolts &c., the plate 63 may have its flanges 64 turned rearwardly as at 64a, Fig. 18.
Patent GB-442064-A (GB)
Title: Improvements in thermally controlled valve mechanism
IPC: G05D23/02
Filed: 1935-06-13
Abstract: 442,064. Thermostats. LANDIS & GYR AKT.-GES., 1, Hofstrasse, Zug, Switzerland. June 13, 1935, No. 17097. Convention date, July 12, 1934. [Class 64 (ii)] [See also Group XXIX] A multiple thermostat device comprises an expansible tube 16, of for example brass, to the end of which are attached rods 19 of a material of a low coefficient of expansion, such as for example the metal known under the Registered Trade Mark " Invar," a further tube of brass 21 being attached to their free ends and in turn being attached to a central rod 11 which actuates a valve 6 through a multiplying lever mechanism 10, 9.
Patent GB-1218178-A (GB)
Title: Improvements in or relating to drive units
Inventor: FORSE DAVID PATRICK SEARLE
IPC: F01D15/06
Filed: 1967-04-14
Abstract: 1,218,178. Turbines. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 16, 1968 [April 14, 1967], No. 17349/67. Heading F1T. [Also in Division F2] The invention relates to a turbine unit which comprises a rotor and a stator, the rotor being supported within the stator by means of a gas bearing, there being formed in the rotor and stator a number of co-operating passages respectively inclined to the radial direction in opposite directions, there being an annulus formed between the rotor and the stator, the passages formed in the rotor and the stator communicating with the annulus, the arrangement being such that when gas under pressure is supplied to the passages in the stator, the rotor is caused to rotate on the gas bearing means. The turbine unit shown comprises a stator 1 and a rotor 2 rotatably mounted therein, the stator being formed with an annular manifold 3 to which air under pressure is supplied through inlet 4. Air passes from the manifold 3 through radial bores 5 in the inner wall 6 of the stator to an annular clearance between the rotor and the stator so as to form a gas bearing. Air under pressure also passes from the manifold 3 through bores 7 in the inner wall 6 to axial clearances between the end walls of the stator and flanges 8 and 9 on the rotor 2 so as to constitute thrust bearings. Inclined passages 11 are formed in the inner wall 6 of the stator and oppositely inclined passages 12 are formed in the rotor 2, the rotor being in the form of a hollow cylinder closed at one end 14. An annular groove 13 is also formed in the outer surface of the rotor in the same plane as the passages 11 and 12. Air under pressure from the annular manifold 3 is directed by the passages 11 on the walls of the passages 12 thus causing the rotor to rotate. The unit may be applied to an infrared scanner, a mirror being mounted on the end wall 14 of the rotor. In a unit comprising a rotor 1.1 inches in length and 0.75 inches diameter and using gas at 201b. per square inch at the rate of 5 cu. ft. per minute, a speed of 120, 000 RPM. was attained.
Patent GB-1303768-A (GB)
IPC: D21F5/16
Filed: 1971-05-26
Abstract: 1303768 Drying by dielectric heating SIEMENS AG 26 May 1971 [5 June 1970] 17350/71 Heading F4G [Also in Division H5] A dielectric heating arrangement for drying web material 1 comprises two rows 11, 13 of electrodes 5 and 7 interconnected by a central row 12 of feed electrodes 6. Electrodes 6 are alternately connected to each end of the high frequency supply and are connected along their lengths to the outer electrodes 5, 7 by sliders 9 located at points #/15 from each end, where # is the wavelength of the high frequency field. The electrodes have a length of #/5, which is preferably half the width of the web material.
Patent GB-542568-A (GB)
Title: Improvements in or relating to fluid pressure regulating devices for fluid supply systems
IPC: F04D15/00
Filed: 1940-12-06
Abstract: 542,568. Relief-valves. AUTOMOTIVE PRODUCTS CO., Ltd., CLENCH, E. C. S., and CARLTON, Q. H. Dec. 6, 1940, No. 17393. [Class 135] A relief-valve device for use in connection with a constantly driven pump feeding an accummulor or other device through a non-return valve is actuated by a piston or like device acting through a lost-motion connection. The piston device is urged in the valve closing direction by a main spring and in the opposite direction by an auxiliary spring so arranged that as the piston device moves from the valve closed towards the valve open position said auxiliary spring ceases to exert force on the piston device before it moves the valve member away from its seat. In the form shown in Fig. 1 the actuating device comprises a pair of pistons 33, 39 arranged in tandem. The smaller piston 33 has a packing 35 and is subject to the pressure in the pump delivery conduit on the side of a non-return valve 22 remote from the pump 16 and has its movement limited by a flange 38 co-operating with the shoulder between the bores. The larger piston 39 has a packing 40, is subject to pump delivery pressure and has a short spindle adapted to be engaged by the piston 33. The piston 39 is extended across a casing 11 to slide in a bearing 73 and is loaded by the main spring 75 arranged between a packed adjustable abutment 79 and an abutment 76 mounted on a reduced extension of the piston. The auxiliary spring 26 is arranged between an adjustable packed abutment 27 and a sliding abutment engaging a short spindle on the piston 33. Movement of the abutment is limited by shoulder 32. Abutments 71-72 on the piston 39 co-operate with a roller 70 on a lever 60 pivoted at 61 and carrying a pin 59 moving in a slot 58 in a link 57 pivoted to the valve member at 56. The free end of the lever moves between stops 68, 69 under the action of a spring strut arranged between the end of the lever and an adjustable abutment 65. The valve member which slides in a bore 45 comprises a cylindrical part 51 adapted to control communication between passages 44, 14 leading to the pump delivery and the chamber 11 connected by a pipe 13 with a reservoir 12. The valve is normally retained in its closed posiiton by a spring-pressed ball catch 55 engaging a groove 54 in the valve member. As pressure builds up in the conduit 14 the pistons move towards the right. After the abutment 31 reaches the shoulder 32 the piston 39 continues alone until the spring strut passes its dead centre position when it snaps over to open the relief passage. This causes the pressure acting on the piston 39 to fall and it moves back under the influence of the spring 75 until the spindle engages the piston 33, subject to accummulor pressure, and moves the auxiliary spring abutment 31 from the shoulder 32. This brings the spring strut nearly to its dead centre but leaves the valve in the open position. When the accummulor pressure falls a predetermined amount the spring tumbler snaps over and closes the relief valve.
Patent GB-357090-A (GB)
Title: Improvements in double-seated valves for dry gas meters
IPC: G01F3/22
Filed: 1930-06-05
Abstract: 357,090. Joint-making packing. TRIGGS, W. W., 57, Lincoln's Inn Fields, London. - (Pintsch Akt.-Ges., J.; 71, Andreasstrasse, Berlin.) June 5, 1930, No. 17446. [Class 122 (iii).] A casing for a double seated valve for dry gas meters comprises a cover 2 and a bottom 3 screwed together and having projecting edges 9, 10, the edge 10 being bevelled so as to provide an annular space 11 for putty or a similar packing.
Patent GB-888537-A (GB)
Title: Arithmetic circuit
IPC: G06F7/50
Filed: 1959-05-22
Abstract: 888,537. Digital electric calculating apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 22, 1959 [May 22, 1958], No. 17514/59. Addition to 884,488. Class 106 (1).  To determine the difference of two multiorder numbers delays representative of the orders of one of the numbers are imposed on a signal in a first device, and delays representative of the tens complement of the orders of the second number are imposed on the signal in a number of second devices, output means being provided to determine the delays imposed on the signal. The apparatus described is generally similar to that described in the parent Specification and the operations of addition or subtraction may be performed using the same input apparatus, the output apparatus special to an operation being switched as required. As shown, subtraction only may be performed. As in the parent Specification a three-order decimal minuend is set by closing an appropriate switch of each of the sets 112, 114, 116. The tens complement of the subtrahend is set in the switches 123, 128, 124. Two pulses on line 130 separated by a time CD are necessary to effect an operation. The first pulse appears on line 113 after a time delay representative of the units order of the minuend and enters delay line 118, appearing on line 125 after a time representative of the sum of the tens complement of the units order of subtrahend and the units order of the minuend. The pulse is then gated to line 135 if the time is 0 to 9 units, to line 136 if the time is 10 to 19 units. If line 135 multivibrator 39 is triggered and the pulse is delayed a period CD in line 137 before energizing as in the parent Specification one of the outputs 174 to indicate the units order of the result. If on line 136 the pulse is delayed CD-10 units before passing to output. In the tens order output four conditions must be allowed for: a delay of 0 to 9 units, or of 10 to 19 units, each with or without borrow from the units order. Thus the pulse on line 127 which has been delayed a period representative of the sum of the tens order minuend digit and the tens complement of the tens order subtrahend digit is delayed in line 142 which has taps at times CD, CD-1 unit, CD-10 units, and CD-11 units, which are led to AND units 155 to 158, respectively. The particular AND unit actuated depends on whether multivibrator 39 is triggered or whether AND unit 143 or 144 is energized by the pulse on line 127. The output signal on line 161 energizes one of the outputs 175. A similar arrangement provides the hundreds order result.
Patent GB-146242-A (GB)
Title: Improvements in and relating to asynchronous electric motors
IPC: H02K17/20
Filed: 1920-06-28
Abstract: 146,242. Siemens Schuckertwerhe. March 30, 1916, [Convention date]. Alternating-current motors; conductors. - In. asynchronous motors to obtain a high rotor resistance at large slips by the utilization of the '' crowding " of the current in the conductors, the slots and conductors are so proportioned that the " numerical bar depth " of the sub-divided conductors lies between 2 and 2.5. The " numerical bar depth " H is obtained from the formula H = 2 # h # d/b À f/p, in which b, Fig. 2, is the width of the slot, d the width of the conductor, h the depth of a sub-divided conductor, f the frequency. and p the specific resistance of the conductor in absolute units. The conductors are preferably twisted or interlaced, and magnetic layers c, Fig. 3 (preferably utilized as current conductors), may be inserted. A suitable construction of conductor is obtained by winding the sub-divisions of the conductor on a circular iron. tube, which is then pressed flat. The rotor shown in Fig. 5 is constructed with alternate iron and copper rods crossing in the middle and having end short-circuiting rings.
Patent GB-639007-A (GB)
Title: Improvements in and relating to drying cylinders
IPC: D21F5/02
Filed: 1947-07-03
Abstract: 639,007. Drying cylinders. PAPIERFABRIK BALSTHAL AKT.-GES. July 3, 1947, No. 17575. Convention date, Oct. 25, 1946. [Class 34(i)] A jacketed hot-water drying cylinder comprises a cylinder shaft 1, hollow at one end, carrying a tube 2 rotating with the shaft and provided with a fluid seal 3, an inlet chamber 4 and an outlet chamber 5 being formed. Three supply pipes 6 lead from the. inlet 4 to the cylinder jacket 7 and three discharge pipes 8 lead from this jacket to the outlet 5. The jacket 7 is divided by partitions 7a into one endless zig-zag passage. The temperature at 6a is higher than that at 9 which is in turn higher than the temperature at 10, adjacent to 6a, the temperature gradients in an axial direction thus compensating each other. In a modification, separate passages are provided, each having an inlet at one end and an outlet at the other end arranged so that the inlet of one passage is adjacent to the outlet of its neighbour. Specification 462,034 is referred to.
Patent GB-477346-A (GB)
Title: Improvements in or relating to radio direction finding apparatus
IPC: G01S1/02
Filed: 1936-06-25
Abstract: 477,346. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and KEMP, R. J. June 25, 1936, No. 17692. [Class 40 (v)] To correct for quadrantal and similar asymmetric error in a radio direction-finder, an auxiliary drum C, Fig. 3, carrying a graph D, Fig. 2, showing the deviation over 360‹ is mounted just below the main scale A which rotates bodily with the frame aerial (not shown). The drum C is geared to the main shaft through skew-wheels, or otherwise, so that it rotates with every movement of the hand wheel B. In operation, the point where the sinusoidal graph D cuts the scale on the indicator A is taken as the index or pointer, and gives the corrected bearing. One half of the graph from 0‹ to 180‹ may be coloured red, and the other half green.
Patent GB-1214105-A (GB)
Title: Microwave heating apparatus and energy distribution means therefor
IPC: H05B6/80
Filed: 1969-04-08
Abstract: 1,214,105. Microwave ovens; R.F. couplings. BOWMARTIC Inc. 8 April, 1969 [20 Feb., 1969], No. 17749/69. Headings H4A and H5H. Microwave heating apparatus includes a pair of output probes 20, 22, extending into the oven cavity 52 from branched arms 16, 18, of a waveguide feed 10 in the form of a tee, wherein the leg 12 has an opening 14 through which to inject microwave energy from a magnetron 70 into the feed, a movable metal element such as a pin 90 being mounted for movement in a predetermined path in the waveguide to effect frequency shift of energy in the feed and interaction between the branched arms 16, 18, to cause node stirring in the energy radiated into the cavity from the probes 20, 22. Probes 20, 22, are connected to the centres of resistance heaters 24, 26. A motor 36 drives a shaft 38 coupled with a rotor shaft 34, which drives a rotor 88 carrying an offset metal pin 90. Pins of different lengths may be threaded into rotor 88. Curved or flat metal plates or screens may be substituted for pin 90 and may be reciprocated. A motor drive fan 76 cools the magnetron 70 and may direct air into leg 12 to prevent moisture or materials passing from the cavity through the tubular elements 62, 64, around the probes 20, 22, and entering the feed 10. Alternatively, the elements 62, 64, are closed with non-metallic disc collars (not shown). A wall of the cavity 52 may have openings (not shown) for the escape of moisture and materials. U.S. Specification 3,320,396 is referred to.
Patent GB-475201-A (GB)
Title: Improvements in or relating to the carding of articles
IPC: G09F5/04
Filed: 1936-06-26
Abstract: 475,201. Attaching articles to cards. BARRETT, A. G., and JOHN BULL RUBBER CO.; Ltd. June 26, 1936, No. 17757. [Class 94 (i)] Articles are attached to a card by means of endless elastic bands, the looped ends bl of each band b passing from the back of the card a through spaced parallel slits a<1> and around the end portions of the article c.
Patent GB-334890-A (GB)
Title: Improvements relating to the firing of steam boiler furnaces
IPC: F23H11/00
Filed: 1929-06-10
Abstract: 334,890. Watson, G. June 10, 1929. Boiler furnaces; walls; fuel, feeding. - In a boiler furnace for burning low grade fuel or refuse, in which the fuel, fed to the front end of a chaingrate b, is ignited and its combustion maintained by a gas, oil, or pulverized-fuel burner k, the fuel is fed from the hopper g by an upwardly-inclined endless conveyer i to a forwardly-directed shoot n which deposits it on the grate in a heap l on to which the burner k directly impinges. Waterboxes d, having supply and discharge connections e, are provided in the side walls of the combustion chamber a.
Patent GB-1171524-A (GB)
Title: Thiazole Quatenary Salts and Compositons containing them
Inventor: DOWNES JOHN EDWARD
IPC: C07D513/14
Filed: 1967-04-18
Abstract: 1,171,524. Herbicides containing thiazole quaternary salts. IMPERIAL CHEMICAL INDUSTRIES Ltd. 18 April, 1967, No. 17779/ 67. Heading A5E. [Also in Division C2] Herbicidal compositions comprise a quaternary salt of the formula: 2Y wherein X represents a C 1-6  alkyl group, m is 0 or 1 or 2, n is 1 or 2 and Y represents an anion, together with a solid diluent or a liquid diluent containing a wetting agent. Some of the salts show selective activity against broad-leaved plants. The compositions take the conventional forms and may include, in addition to use adjuvants, inhibitors of metallic corrosion, e.g. alkali or alkaline earth metal nitrates, benzoates, borates, orthophosphates or molybdates, and other herbicides, e.g. substituted ureas, triazines and phenoxyacetic acids. Examples 5 and 6 relate to a liquid concentrate and a granular composition both of which contain a corrosion inhibitor.
Patent GB-1465644-A (GB)
Title: Hay roll forming machines
IPC: A01F15/08
Filed: 1974-04-24
Abstract: 1465644 Harvesting SPERRY RAND CORP 24 April 1974 [24 April 1973 (6)] 17892/74 Heading A1F The description is substantially identical to that of UK Specification 1465641. The claims relate particularly to the lower roll forming apron construction.
Patent GB-1414852-A (GB)
Title: Door check and door hold open devices
IPC: E05F3/10
Filed: 1973-02-26
Abstract: 1414852 Spring door closers with hydraulic checks REPUBLIC INDUSTRIES INC 26 Feb 1973 [28 July 1972] 18009/75 Divided out of 1414851 Heading E2M The disclosure is part of that of Specification 1414851 the claims being directed to the modified valve plunger 202. Hydraulic fluid being ejected through exit passage 224 is blocked by a portion 208 of a valve plunger 202 held onto a seating by some means preferably a solenoid armature 186 which exerts a force greater than that transmitted from the closer spring 38. However if an extra manual force is exerted to close the door the valve plunger is moved away from the seating 208 and an enlarged face 216 on the plunger can be acted on by the incoming fluid to continue to hold the plunger back even when the manual force is removed.
Patent GB-515979-A (GB)
Title: Improvements in or relating to collapsible chairs
IPC: A47C4/02
Filed: 1938-06-18
Abstract: 515,979. Collapsable chairs. OGDEN, C. M. June 18, 1938, No. 18186. [Class 52 (ii] In a collapsable, chair the seat, sides, back; and leg rest comprise plywood panels strengthened by battens, and the seat is detachably secured to the sides by means of lugs. The seat 1 consists of battens 2 and a plywood covering 3 and may have a removable central portion 4. The sides 5, formed of battens 6 and a plywood covering 7, are provided with rows of slots 8, 8' to receive metallic lugs 9 secured to the seat 1 and provided with holes 10 to receive pins or the like 11. The back rest 15 butts against a stop 13 on the seat and is supported by a bar 16 adjustable in slots 17; Arms are provided, formed by two strips 19, 20 hinged together at 21, the strip 19 being hinged to the side 5 at 22 while the other 20 abuts on a rest 23. When the chair is collapsed the arms 19, 20 lie along the sides 5. A leg rest 25 with a supporting foot 26 has hooks 28 which fit into slots 29 on the seat 1, and an auxiliary foot-rest may be hooked on to the rest 25. Rubber cushioning members 35, Fig. 8, covered with fabric, are secured in position by means of a canvas base 36 provided with eyes 37 adapted to fit over studs 38 behind the panel to be covered. The cushions 35' for the sides 5 have a portion 35" which fits over the arms 19, 20 and is secured as shown in Fig. 5.
Patent GB-1094500-A (GB)
Title: Perfluorodivinyl ether
IPC: C07C59/315
Filed: 1966-04-26
Abstract: The invention comprises perfluorodivinyl ether.  The compound is prepared by reacting perfluoromalonyl fluoride with hexafluoropropylene epoxide in an inert solvent under substantially anhydrous conditions in the presence of a catalytic amount of an alkali metal or quarternary ammonium alkoxide formed from perfluoromalonyl fluoride to obtain perfluoro-2-methyl-3-oxa-adipoyl fluoride which is then pyrolysed in contact with an alkali metal carbonate or zinc oxide or is converted to the corresponding alkali metal carboxylate which is then pyrolysed.  The catalyst has the formula CF2(CF2OM)2 or MOCF2-CF2-COF, where M is alkali metal or quaternary ammonium.  The perfluoromalonyl fluoride is prepared by heating b -methoxypropionyl fluoride with TiF4.