baber/WOPTO huggingface dataset:
Patent GB-1040284-A (GB)
Title: Heat exchangers
Inventor: ROACH DAVID LLOYD
IPC: F28F21/06
Filed: 1963-05-31
Abstract: 1,040,284. Heat exchangers. D. LLOYDROACH, [trading as LLOYD-ROACH ENGINEERING]. May 25, 1964 [May 31, 1963], No. 21828/63. Heading F4S. [Also in Division B5] A tube and header or tube and end plate assembly comprises a header or end plate of thermosetting synthetic resin material, moulded on to the ends of an array of heat exchanger tubes. The ends of the tubes, or the whole of the tubes, may be coated with resin which is cured before the end plate or header is moulded. Fig. 1 (not shown) depicts a tube and end plate assembly in a mould which consists of a steel base 1 having pins 2 to locate the tubes 5. A ring 8 fits over a sleeve 7 and is clamped in place by tension bolts 9. The mould is pushed off the base by means of an extraction plate 6 fitted with pins touching the underside of the disc 3. Fig. 7 shows a tube and header assembly. Threaded steel or other metal inserts 13 may be moulded into the resin header to form securing points for the flanges of feed pipes. Metal baffle plates 14 position the tubes and ensure correct flow of the fluid circulating outside the tubes.
Patent GB-153999-A (GB)
Title: Improvements in radial cylinder internal combustion engines
IPC: F02B57/08
Filed: 1919-09-05
Abstract: 153,999. Hefford, P. H. Sept. 5, 1919. Two-stroke-cycle engines; driving-gear.-An engine as described in Specification 140.537 is modified by dispensing with the toothed gearing between the central shaft and the separate crank shafts and replacing it with a spider or its equivalent 14 mounted upon a crank 13 and connected to crank pins 12 provided on the ends of the crank shafts 10. The crank pins 12 and 13 each have the same throw. If preferred, the crank-pins 12 and 13 may be replaced by eccentrics.
Patent GB-487006-A (GB)
Title: Improvements relating to the purification of waste liquors
IPC: C02F3/10
Filed: 1937-08-09
Abstract: 487,006. Filters. MAIER, E. Aug. 9, 1937, No. 21926. Convention date, Aug. 18, 1936. [Class 46] A filter for the purification of waste liquid which has been preliminarily clarified comprises a number of superposed trays or hurdles 1 containing peat, each tray having rollers and being constructed as a track for the tray above it, while means such as a crane 4 are provided for lifting the pile of trays en bloc, so that the uppermost tray can be withdrawn and a fresh tray placed in position at the bottom. Several piles may be arranged side-by-side, the crane moving on rails 7 from one pile to another. As shown in Fig. 3, the filter is arranged in a casing 9 through which air is drawn or forced from the bottom to the top or vice versa. The uppermost hurdle can be removed through an opening closed by means of a damper 12. The pile is then raised by four winches at the bottom, which are coupled to work together, and a fresh hurdle is inserted through an opening closed by a damper 14. The waste liquors may have been previously rendered alkaline by admixture with lime or powdered limestone or the peat may be treated with one of these substances. Specification 483,954 is referred to.
Patent GB-150175-A (GB)
Title: Improvements in reversible clutches suitable for differential or balance gearing
IPC: F16D41/00
Filed: 1919-09-06
Abstract: 150,175. Mole, L. E. de. Sept. 6, 1919. Clutches, ratchet; differential or balance gearing. - An automatically reversible friction ratchet clutch comprises toggles E thrust outwards by a circular spring H and adapted to thrust semicircular segments F into one - way gripping engagement with h a drum c. The application of a pair of these clutches to differential or balance gearing is described. Segmental lugs D project laterally from a driving-wheel B on a shaft b between the toggles and bear against lugs f projecting inwardly from the segments F. The toggles E are pivoted upon the lugs f and are adapted to be tilted into radial position when the clutch is driving by balls L running in recesses e<2> in the ends of the toggles. The toggles engage at their inner ends a sleeve G, which is turned to throw the toggles over into position for reversed driving. For this purpose, an annular lever J pivoted between lugs D at j is connected through jaws m and a disk M to the sleeve G. On reversal of the drive, a ball N rolls through a semicircle inside a fixed casing K, and thrusts the lever J first inwards to disengage a catch j', and then over to the other side to turn the sleeve G and shift the toggles. Overrunning in both directions is permitted.
Patent GB-151586-A (GB)
Title: Improvements in and relating to automatic lathes
IPC: B23B7/02
Filed: 1920-07-22
Abstract: 151,586. Petermann, J. Sept. 20, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Lathes.-An automatic lathe has at least four tools arranged in a fan-like manner round the work axis, the tool carriers being reduced at one end to allow of their being brought close to the work. The tool carriers a and b are fixed to a swinging bar pivoted at c, and the tool carriers f and g sliding on a support d are spring-pressed against stops h and i on a lever operated by cams carried on a longitudinal shaft.
Patent GB-938789-A (GB)
Title: Stabilized polymeric compositions
IPC: C08K5/44
Filed: 1962-06-08
Abstract: A crystalline olefin polymer, such as polypropylene, is stabilized with a compound RSO2NHR1 wherein R and R1 can be alkyl or aryl groups optionally substituted with alkyl, aryl or thiocyanic radicals, and R1 also can be hydrogen.  Specified stabilizers are benzylsulphonamide and N-(p-thiocyanophenyl)-p-toluene sulphonamide. Optional ingredients are pigments, dyes, fillers, calcium stearate, polyalkyleneimines, condensation products of amines with dichloroethane or epichlorohydrin, polyvinylpyridine, and stabilizers, such as 4,41-thio-bis-6-t-butylmetacresol and lauryl thiodipropionate.  A solvent may be utilized in forming the polymer/stabilizer composition.  Applications specified are as filament, fibre, film, yarn and tape.
Patent GB-406926-A (GB)
Title: Improvements in and relating to clutches
IPC: F16D43/18
Filed: 1933-08-09
Abstract: 406,926. Friction clutches. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Warner, W. W. ; 1042, Northwood Boulevard, Fort Wayne, Indiana, U.S.A.) Aug. 9, 1933, No. 22306. Convention date, Aug. 9, 1932. [Class 80 (ii).] In a centrifugal friction clutch, particularly for connecting an electric motor to its load, links 22 have their outer ends 28 pivoted to a hollow driving member 19, which is secured to the rotor sleeve 15, while their inner ends 27 are pivoted to segmental weights 21 arranged round the sleeve 15, the links being arranged in V-shaped recesses 24 in the sides of the weights. The leading edge 25 of each recess is slightly undercut. During the accelerating period of the motor, which rotates in the direction of the arrow A, the weights 21 are retained in the retracted position shown in Fig. 2 and in dotted lines in Fig. 3, with the links 22 contacting with the edges 25, due to the force produced by the angular acceleration of the weights. At a predetermined speed, which may be substantially the full speed of the motor, the centrifugal force of the weights preponderates and causes them to swing about the pivots 28 so that they move outwardly to the position shown in full lines in Fig. 3 and move friction blocks 20, arranged in openings in the periphery of the member 19, suddenly into contact with a drum 18 secured to the driven shaft 14. The trailing edges 26 of the recesses 24 limit this outward movement.
Patent GB-1505954-A (GB)
Title: Switchgear unit
IPC: H02B1/21
Filed: 1976-05-28
Abstract: 1505954 Switchgear isolation SIEMENS AG 28 May 1976 [18 July 1975] 22468/76 Heading H1N A switchgear unit, especially for mines, comprises a flameproof housing containing load switchgear connected to an input conductor via an isolating switch with a plug-in type connection so that the entire switchgear including isolator may be withdrawn from the input. The isolating switch may be connected to provide pole or phase changeover.
Patent GB-1081484-A (GB)
Title: Improvements relating to a.c. power regulators
Inventor: GURNETT KEITH WILLIAM
IPC: G05F1/455
Filed: 1963-06-06
Abstract: 1,081,484. Control systems for consuming apparatus. FERRANTI Ltd. June 4, 1964 [June 6, 1963], No. 22475/63. Heading H2H. In an A.C. power regulator, the A.C. input is divided into succeeding groups of cycles and any desired proportion of each of said groups is passed to a load, such as a neon lighting system, by the controlled operation of gating means. As shown, an A.C. power regulator comprises an input transformer T1 having a secondary winding 3 supplying output terminals O/P; silicon controlled rectifiers SCR1, SCR2 connected in parallel with reverse polarity in one output lead; a square wave oscillator including transformer T2 and transistors TR7, TR8 for triggering the controlled rectifiers; a frequency divider 4 which produces a single cycle of a square wave for each, say eight cycles of A.C. input; circuitry including a transistor TR1, a differentiator C6, R7, transistors TR2, TR3, and a capacitor C7 for producing from the said square wave a D.C. ramp function for each of the groups of eight cycles; a capacitor C8 to which the ramp function is applied together with a controllable potential derived from a potentiometer RV1 so that the D.C. level of the ramp function may be controlled; and transistors TR4, TR5, TR7 for controlling the operation of the square wave oscillator, and hence the triggering of rectifiers SCR1, SCR2, in response to the control signal on capacitor C8. In operation, the square wave oscillator is rendered operative to trigger the controlled rectifiers when the instantaneous D.C. value of the ramp function exceeds a pre-determined level. The time during each group of eight cycles at which this pre-determined level is reached is controllable by means of the potentiometer RV1, so that the proportion of the cycles that is passed to the load may be smoothly controlled from the full eight cycles down to zero.
Patent GB-1032537-A (GB)
Title: Improved hydraulic and pneumatic discharge apparatus for bulk transport systems
IPC: B65G53/30
Filed: 1964-06-01
Abstract: 1,032,537. Pneumatic conveyers. HUGHES TOOL CO. June 1, 1964 [Aug. 28, 1963], No. 22519/64. Heading B8A. [Also in Division F1] In apparatus for discharging solid particles from a container 1, Fig. 1, by injection of air or liquids (see Division F1) upwardly through an inlet 7, a deflector 12 with an upwardly converging lower surface 26 is arranged above the inlet 7 and adjacent material outlet 10 for deflecting the mixture towards the outlet 10. The deflector may be adjustably held by a rod 13 attached to the bell valve 2 (as shown), but modifications are described in which it is attached by multiple rods to the container wall or to the upper end of the material outlet pipe 10. The material outlet pipe 10 may project above the inlet 7 and may have a detachable screwed end piece 32, Fig. 4 (not shown), carrying a deflector 31 on rods 33. In modifications, groups of inlets may be arranged adjacent to or concentrically arranged internally or externally of the outlet.
Patent GB-1330588-A (GB)
Title: Ground-mapping radars
IPC: G01S13/90
Filed: 1971-04-19
Abstract: 1330588 Pulse radar INTERNATIONAL STANDARD ELECTRIC CORP 19 April 1971 [26 Feb 1970] 22553/71 Heading H4D Relates to a coherent pulse-Doppler radar carried by an aircraft for side-looking (synthetic aperture) ground mapping. For accurate determination of the instant t 0  when the radar to target line is perpendicular to the flight path of the aircraft (corresponding to target range D) it is known to compress the echo signal of duration A produced by linear frequency modulation due to Doppler shift as the aerial beam sweeps through the target (due to motion of the aircraft) by a dispersive delay line; and the amplitude of the output of that line is indicative of the nature of the target (e.g. river, road, tree have different echoing properties). However, in this known method a different dispersive line is necessary for each range increment processed and it is the object of the invention to enable a single dispersive line 7 to be used for all range increments. This is achieved by binary coding of samples of the output of a coherent detector in the receiver of radar 1, selectively entering them into shift registers R1 ... Rm-corresponding in number to m contiguous range increments-and reading out therefrom at different rates for different range increments: if a range increment corresponds to a target distance D the reading rate is made proportional to #D.
Patent GB-533159-A (GB)
Title: Improvements in or relating to vehicle suspension systems
IPC: B60G21/055
Filed: 1939-08-03
Abstract: 533,159. Road vehicles. HUDSON MOTOR CAR CO. Aug. 3, 1939, No. 22580. Convention date, Aug. 4, 1938. [Class 108 (ii)] A stabilizer for the steering wheels of motor vehicles comprises a torsion-bar 14 which is movably mounted on the framing 10, adjacent the wheels 12, 13 and connected, through links 21, 22 and brackets 25, 26, to stationary wheel-fitments. As shown, the brackets are fitted to the king-pin mountings 27, 28 which also support the stationary brake-drum casings 29, 30. Rubber buffers 15, 16 are fitted between the rod 14 and the framing ; and similar buffers 31, Fig. 8, are fitted on the ends of the links 21, 22 on either side of the cranked ends 19, 20 of the bar 14. The disposition of the parts 19, 20 and the links 21, 22 is such that the forces exerted by the torsion-bar, on relative displacement of the steering- wheels, are applied forwardly of the king-pins. The arrows in the lower part of Fig. 10 show the resultant vertical and horizontal forces applied to the wheels in the case of a left-hand turn. Fig. 11 shows the corresponding resultant forces exerted by the torsionrod where the left-hand wheel is surmounting a bump.
Patent GB-817275-A (GB)
Title: Improvements in or relating to mowers
IPC: A01D75/18
Filed: 1955-08-05
Abstract: 817,275. Reaping machines. MASSEY-HARRIS-FERGUSON Inc. Aug. 5, 1955 [Aug. 5, 1954], No. 22580/55. Class 6(3). [Also in Group XXV] In a tractor-mounted mower of the type wherein the cutter-bar assembly 20 is capable of swinging backwardly relative to a support 12 under excess load, the cutter-bar is normally retained in its operative position by a tie-bar 26 connected at one end to the assembly and slidable within a sleeve 28 connected to the support, latching  means being provided between the sleeve and tie-bar and a plurality of fingers surrounding the bar and extending longitudinally thereof resiliently to urge the latching means into engagement but to permit their disengagement under load in excess of a predetermined limit. The support 12 is carried on a tripod structure 13, 14, 15 supported on the tractor, and the cutter-bar can swing rearwardly relatively to this structure into the dotted position in Fig. 1. The sleeve 28, Fig. 2, is carried by a bracket 31 universally-jointed to the supportleg 14 and is tapered at its front end 37 to permit the engagement thereover of fingers 39a, the ends of the fingers having lugs 40 which enter a groove 36a in the sleeve 28. The other ends of the fingers are clamped to the bar 26 by a member 45. In a modification, Fig. 5 (not shown), the fingers are integral with the sleeve 28 and their ends engage a grooved boss secured to the tie-bar and movable with it. Specification 779,630 is referred to.
Patent GB-842121-A (GB)
Title: Improvements in or relating to variable speed gears
IPC: F16H3/56
Filed: 1957-07-17
Abstract: 842,121. Change-speed gear. WILKINSON, E. E. May 29, 1958 [July 17, 1957], No. 22593/57. Class 80 (2). A two-speed epicyclic gear for motor vehicles &c. comprises aligned input and output sunwheel shaft M, N meshing respectively stepped planets A<SP>1</SP> ... Bl ... of which the former are fixed to and the latter helically splined on carrier shafts 0<SP>1</SP> ... freely mounted in a casing K, which provides direct drive through a oneway clutch U and overdrive on holding the casing K by a band brake (not shown). During direct drive the pinions B<SP>1</SP> ... are moved axially, against the pressure of springs S, to abut against the pinions A<SP>1</SP> ... and on overrun of the shaft N the pinions B<SP>1</SP> ... move axially to engage facial clutch teeth thereon with clutch teeth C on the casing K to enforce direct drive and provide engine braking. By supplying appropriate powers to the shaft H, the pinions B<SP>1</SP> . . . are maintained in an intermediate position for freewheeling. If during overdrive the shaft N overruns, the pinions B<SP>1</SP> . . . move axially to engage the clutch teeth C and enforce downshift to direct drive, providing engine braking, after, the brake band has been released by electromagnetic or hydraulic means actuated by a plunger L fast with the pinion B<SP>1</SP>. In Figs. 1 and 2 (not shown) the toothed clutch C is replaced by a friction clutch and the plunger L is omitted, throttle closure releasing the brake band.
Patent GB-359074-A (GB)
IPC: C01F7/38
Filed: 1930-07-26
Abstract: Technically pure fused alumina is obtained, together with phosphorus, by reducing mineral aluminium phosphate in the electric furnace with sufficient carbon not only for the reduction of the phosphorus pentoxide but also for the substantially complete reduction of the gangue, the reaction zone being maintained at a temperature above the melting point of alumina and thus high enough to permit of the decomposition of any metallophosphorus alloy formed by the silicon produced by the reduction of the gangue.  The alumina may be drawn off by tapping or allowed to accumulate in the furnace in the form of blocks. When treating aluminium phosphates low in iron, it is advisable to add an amount of ferric oxide or iron sufficient to assure the formation of an alloy between the iron and the elements reduced from the gangue.  Specification 14962/88, [Class 90, Non-metallic elements], is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the production of phosphoric acid by the admission of air to oxidize the phosphorus formed in the process, and suitable treatment of the pentoxide so formed.  This subject-matter does not appear in the Specification as accepted.
Patent GB-596231-A (GB)
Title: Improvements in liquid spray guns
IPC: B05B7/24
Filed: 1944-11-17
Abstract: 596,231. Spray - guns. GENERAL ELECTRIC CO., Ltd., and OSBORN, A. B. Nov. 17, 1944, No. 22816. [Class 69 (iii)] Relates to spray-guns of the type employing a continuous supply of compressed air so that liquid issuing from an orifice is entrained, in the form of spray, into an air stream flowing past the orifice. According to the invention, the orifice is formed by one end of a capillary tube of uniform bore, unobstructed by any now-regulating device, the other end of the tube being connected to a liquid reservoir and the spray emerges from the gun without any subsequent obstruction. In the form shown, the gun comprises a body 1 provided with a handle 11 which is fixed to a stand 12. Compressed air is supplied to the body through an inlet port 3 and emerges from the cap 5 through an annular passage 19 between the cap and a bushing 13 which supports a capillary tube 4, the air-flow being regulated by a valve 14 operated by a trigger 15. The capillary tube, which carries the spraying liquid from a container 7 to an orifice at its outer end adjacent to the cap 5, is soldered to a tube 6 dipping into the liquid, and is supported at an intermediate point in its length by a bushing 9, a shield 10 being provided to protect the otherwise exposed portion of its length. The capillary tube is not provided with now-regulating means, the liquid being drawn along the tube by the low pressure produced at the orifice. A sight 17 is provided on the upper part of the body. In a modification, the tube 4 terminates above the end of an inlet 2 to which the container 7 is fixed, the inlet tube 2 being extended downwardly to dip into the liquid. In this construction interchangeable capillary tubes may be employed, each tube being mounted in a separate bushing 13. Specification 318,621, [Class 69 (iii)], is referred to.
Patent GB-150540-A (GB)
Title: Improvements in and relating to smoking pipes
IPC: A24F5/00
Filed: 1919-09-17
Abstract: 150,540. Perkins, R. E. Sept. 17, 1919. Tobacco pipes.-The base C is screwed outside a tubular bowl B and formed with a central stem 2 and an expanding plug 3, which may be faced with non-combustible material 5, or be dipped in, or made of, infusible or non-inflammable material.
Patent GB-767335-A (GB)
Title: Improvements relating to ditch-cleaning apparatus
Inventor: BERRY FREDERICK DAVID CHARLES
IPC: E02F3/42
Filed: 1954-08-06
Abstract: 767,335. Shovelling machines. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept, 30,1955 [Aug. 6, 1954], No. 22879/54. Class 68 (1). , The scoop 23 of a ditch-cleaning apparatus is pivotally mounted at 22 on an arm 19 pivotally mounted at 21 on a jib 10, and at 25 to a lever 24 having a slot 26 that trippably engages a roller on the jib so that upon actuation of a double acting pistoncylinder unit 34, 35, 35a, pivotally coupled between the jib and the arm to vary the angle between the arm and the jib, the bucket is turned appropriately relatively to the arm to an extent dependent upon the magnitude of the variation between the arm and the jib. An adjustable cam 28 is mounted on the jib to cause, at a preselected angle between the arm and the jib, the lever 24 to be lifted to allow of the bucket being tilted in such a manner that the contents thereof are discharged. The jib is pivotally mounted at 11 on a structure that is either secured directly to or is secured to the upper portion of a turntable secured to the chassis of a tractor. Rotation of the jib about the pivot 11 is due either to a cable system actuated by the lift arms of the tractor or by a pistoncylinder unit. In the latter case a hand-operated cable system is also provided for rotating the jib to positions not possible with the piston-cylinder unit, said unit then being disconnected from the jib.
Patent GB-241148-A (GB)
Title: Improvements in garment stretchers
IPC: A47G25/66
Filed: 1925-09-14
Abstract: 241,148. Roberts, J. B., and Cini, C. Sept. 14, 1925. Stretchers, garment.-An insertion-type of stretcher for trousers, coat sleeves, neckties, &c. comprises an elongated looped member 1 formed from spring wire with a spring convolution 2 in one end and having disposed within it a looped member 8 formed with a number of oppositely-disposed bends 9 and provided with sleeves 7 slidably mounted on the opposite sides or arms of the member 1. The convolution 2 and bends 9 are in the planes of the members 1, 8 respectively. The ends of the arms 3 are curved at 10 and terminate adjacent each other so that the ends of the portions 2 overlap when the stretcher is inserted in a small trousers leg or move away from each other when used in a large trousers leg. In a modification, the end portions of the arms 3 are soldered or otherwise connected together.