baber/WOPTO huggingface dataset:
Patent GB-411836-A (GB)
Title: Improvements in or relating to endless track apparatus
IPC: B62D55/08
Filed: 1932-12-08
Abstract: 411,836. Endless - track vehicles. BARTLETT, B. G. W., 1, Cartmell Terrace, Brinkburn Road, Darlington. Dec. 8, 1932, No. 34851. [Class 79 (i).] Relates to endless-track apparatus of the kind wherein a plurality of endless series of wheels, rollers, balls or the like 5 are disposed around and roll on the periphery of an elongated member 11 and wherein the wheels &c. in at least one series are disposed in staggered relationship to those of another or other series. According to the present invention means for spacing apart the wheels in a series are provided by or formed or mounted on the axles of the wheels &c. of another or other series. In the construction shown in Figs. 1 and 2 wheels 5 arranged in four endless series 1 .. 4 run on the periphery of the member 11, and each wheel axle 6 projects between the wheels of the next series and carries a spacing roller 7 engaging two wheels of the next series. The wheels of alternate series may be mounted on common axles as shown, and these axles may project beyond all the wheels and carry rollers 8 which engage flanges 9 on plates 11 fixed to the member 11 and thus retain the wheels in contact with 11. The wheels may have grooves 12 to engage ribs 13, 14 on the member 11 and spacing rollers 7 respectively. In alternate series the wheels may have convex faces 23 to reduce friction against adjacent wheels. The wheels may form the endless track which engages the ground or they may engage the lower or the lower and upper inner surfaces of an endless flexible track bearing on the ground. In the construction shown in Fig. 5 the wheel axles 6 are connected together by hoops or rings 20, or the axles may be connected by ordinary chain links one or more of which may be resilient. In another modification the axles are connected together by annular rollers similar to the rings 20 but forming additional series of track rollers. According to the Provisional Specification the wheels may be maintained in staggered relationship by means of shrouded gear wheels formed on some of the wheels or axles of each unit, these gear wheels engaging rack teeth on the elongated member 11, or by providing cranked axles common to two or more series of wheels.
Patent GB-448506-A (GB)
Title: Improvements in road sweeping machines
IPC: E01H1/08
Filed: 1934-12-04
Abstract: 448,506. Steering motor vehicles. FRIE.DLEIN, H. M., Surth, near Cologne, Germany. Dec. 4, 1934, No. 34858. Convention date, Dec. 4, 1933. [Class 79 (v)] [See also Group X] A road-sweeping machine is provided with a laterally disposed feeler adapted to bear against the kerb and operatively connected with the steering element in such manner that the increased or reduced pressure exerted on the feeler when the machine approaches or leaves the kerb results in the actuation of the steering mechanism to return the machine to its original normal position. In the construction shown, the feeler takes the form of a rotary gutter sweeping brush 2 pivotally suspended from a bracket 70 and spring-urged into contact with the kerb 4. Movements of the brush towards the kerb rotate a vertical shaft 73 through the medium of a link 72, the upper end of the shaft being connected by an arm 74 to a friction clutch on the continuously rotating driving shaft 9 of the machine. Such actuation of the clutch drives a pulley which is connected by a cable 76 to a pulley 6 on the steering shaft 5, and thus steers the machine away from the kerb. Similar mechanism may also be provided for moving the machine towards the kerb. The brush delivers the sweepings into a suction opening 11 of a dust collecting device where it gathers in front of a vertically oscillating shovel 13. The shovel is attached to a rocker 17 pivoted at 17a and having an arm 17b which is rocked by a roller 16 secured to the axle of the machine wheels 15. Behind the shovel, the main sweeping brush 12 is located, the brush being supported by vertical bars 12a which can be raised and lowered by bell-cranks 12b having screw and nut connections with handoperated shafts 12d. The brush is so adjusted that the length s in contact with the ground is greater than the length s<1> of sweepings able to accumulate in front of the shovel. The sweepings are delivered to a container 20 housing a suction fan and a centrifugal separator 28. Adjacent the suction opening 14 of the container, an adjustable stop 22 is provided to spread the bristles and thus to enable a current 21 of air to enter the container after passing through and thereby cleaning the bristles of the brush. The single driving wheel 10 is displaced slightly laterally from the vertical axis about which it swings, so that when power is supplied it balances the torque imposed on the machine by the resistive pressure acting on the brush 2.
Patent GB-486407-A (GB)
Title: Improvements in sheet pile structures
IPC: E02D31/10
Filed: 1937-12-16
Abstract: 486,407. Sheet piling. THORNTON, A. A. (Dortmund Hoerder H³tten-Verein Akt.- Ges.) Dec. 16, 1937, No. 34860. [Class 68 (ii)] Sheet pile structures are provided with drainage holes b, Fig. 1, to avoid overpressure from the ground behind the structure, the holes being below the lowest water level and covered on the land side by a shield or canopy c open at the bottom e. The shield may be covered by gravel to keep away fine soil. The vertical wall of the shield may be formed with louvres opening downwards on the land side. To protect the shield when the piles are driven in, a wedge g, Fig. 5, may be arranged below the shield and clear of the opening. The shield may be filled with gravel &c., Fig. 7, and may be provided with a hinged one-way valve k.
Patent GB-1467804-A (GB)
Title: Blow tubes for the manufacture of foundry cores and other  articles of granular or powdered material
IPC: B22C15/24
Filed: 1974-07-12
Abstract: 1467804 Foundry moulding GEOFFREY LAMB (CONSULTANTS) Ltd 12 July 1974 [21 July 1973] 34888/73 Heading B3G A blow tube 6 for use in a core-making machine is perforated circumferentially and longitudinally for a substantial part of its length and is sheathed by a metal gauze which covers the perforations. The tube is clamped by a flange 5 within a chamber 7 to which air is supplied via an inlet 8; sand is fed downwardly, via a valve 11, through the tube and is entrained by air passing into and through the tube, and is delivered to a core box 13.
Patent GB-909485-A (GB)
Title: Improvements in or relating to mixer settler apparatus
Inventor: LOWES LEONARD
IPC: B01D17/06
Filed: 1959-10-14
Abstract: A mixer-settler is provided with electrodes to produce an electric field in that region of the settler compartments normally occupied by the emulsion band.ALSO:To assist the settling out of the phases of a liquid emulsion in a mixer-settler apparatus electrodes are provided to produce an electric field in that region of the settler compartment normally occupied by the emulsion band.  The electrodes may be inside or outside the compartment walls, or said walls may act as one of the electrodes, the other electrode being positioned axially within the compartment. Where the settled phases are non-conducting, the electrodes need not be insulated.  The Specification tabulates the results obtained for the emulsion band width in the settler compartment for different through-puts and phase ratios under the action of applied voltages of 0, 3,260, 9,780 and 16,300 volts respectively.
Patent GB-1162778-A (GB)
Title: Object Detector and Discriminator
Inventor: RANCE EDWIN
IPC: G01V3/00
Filed: 1968-07-22
Abstract: 1,162,778. Electro-physical measurement - metal detectors. E. RANCE. July 22, 1968, No. 34902/68. Heading G1N. In a metal detector of the kind in which the search coil L1 forms the tank circuit of an oscillator 10, both the frequency change of the oscillator is detected, and the amplitude change to provide discrimination between good and poor conductors. As shown, the FREQUENCY CHANGE is detected by beating with an oscillator 11 and feeding the beat frequency through an R. F. filter choke L3 and amplifier 12 to a loudspeaker 13. The AMPLITUDE CHANGE is detected by comparing the base voltage of oscillator 10 with that of oscillator 11, through resistance network 6, 7, 8, 9 to meter M1. An amplifier 11 may be used for increased sensitivity.
Patent GB-760247-A (GB)
Title: Improvements in or relating to electric cookers
Inventor: THOMAS LESLIE FREDERICK
IPC: F24C15/08
Filed: 1953-12-15
Abstract: 760,247. Electric heating; grilling stoves. JACKSON ELECTRIC STOVE CO., Ltd. Dec. 14, 1954 [Dec. 15, 1953], No. 34921/53. Classes 39(3) and 126 The grilling unit of an electric cooker is mounted above and to the rear of the hob or hot plate and consists of one or more radiant elements mounted below a fixed horizontal shelf having a reflecting surface and provision for supporting a grill pan beneath said element or elements. The grilling compartment comprises an interior casing with a roof a having a reflecting under surface, sides b with runners for the grill pan l, a back c and removable floor d. The exterior casing e encloses the interior casing to form a chamber for controls at one side and a space on top of roof a which is filled with heat insulating material f. A double-cased door j is hinged at the bottom to the casing. Under roof a two radiant heating elements are attached, protected by guard h. An auxiliary heating element i is provided below floor d. The compartment is mounted on tubular supports p which extend behind splash back q and are secured to the cooker body by clamps r so as to be vertically adjustable. The top surface of the grilling compartment may be adapted to form a plate rack.
Patent GB-1236417-A (GB)
Title: Improvements in and relating to inflatable load supporting cushions for use in mines
IPC: B60C9/02
Filed: 1968-07-22
Abstract: 1,236,417. Inflatable mine roof supports. MICHELIN & CIE (COMPAGNIE GENERALE DES ETABS. MICHELIN). 22 July, 1968 [20 July, 1967], No. 34939/68. Heading E1E. [Also in Divisions A4 and F2] An inflatable mine-roof support cushion when force from load has the side elevation shown and in plan has the shape of an elongated hexagon, see Fig. 1A (not shown). The upper and lower walls 11, 12 have different degrees of elasticity which is effected by using reinforcing cords of different material or different degrees of twist or by using extra cords for details of which including materials employed and disposition in rubber matrix, the Specification and remaining drawings (not shown), should be referred to.
Patent GB-1241302-A (GB)
Title: Heat-sensitive high molecular weight resistors
IPC: H01C7/04
Filed: 1968-07-22
Abstract: 1,241,302. Polymer compositions. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 22 July, 1968 [3 Aug., 1967 (2); 24 June, 1968 (2)], No. 34966/68. Heading C3B. [Also in Division H1] A heat-sensitive high-molecular-weight resistor comprises a copolymer or high polymer composition which contains a charge transfer bond in an amount to give said polymer or composition a volume resistivity of at least 10<SP>2</SP> ohm. cm. at 30‹ C. and a thermistor temperature coefficient of at least 1000‹ K between 30‹ and 60‹ C. Either the donor or the acceptor or both may be polymers. Examples of highmolecular-weight donors are polymers of 2- or 4-vinyl pyridine, 1-vinyl-2-methylimidazole, N- vinyl - carbazole, N - vinylthiocarbazole or N- vinyl pyrrolidone. Examples of highmolecular-weight acceptors are polymers of tri- or di-nitrostyrene, phathalic anhydride or maleic anhydride. Binary or tertiary copolymers of the above donors and acceptors together with styrene, methyl, ethyl, butyl or ethyl hexyl acrylate, methyl methacrylate, acrylonitrile, vinyl acetate or octylvinyl ether are also specified. Low-molecular-weight donors may be perylene, p-phenylenediamine, diphenylamine or 1-naphthylamine whilst the lowmolecular-weight acceptors may be chloranil, bromanil, tetracyanoethylene, tetracyano-pquinodimethane, hexacyanobutadiene, hexachlorobutadiene or tetracyanobutadiene. The composition may be a polymeric matrix containing a dispersion of a charge transfer complex wherein the polymer is preferably PVC, or a copolymer of ethylene and ethyl acrylate; styrene and butadiene, ethylene and vinyl acetate, styrene, 2-ethylhexyl acrylate and butyl acrylate or styrene, butadiene and acrylonitrile. The charge transfer complex dispersed in the above polymers may be one of high molecular weight as specified above together with dioctyl phthalate and tribasic lead sulphate or dimethyl cetyl benzyl ammonium tetracyano-p-quinodimethane, stearamide propyl dimethyl - # - hydroxyethyl ammonium tetracyano - p - quinodimethane, # - hydroxyethyl-2- methyl imidazolium tetracyanoquinodimethane, 2 - undecyl imidazolium tetracyanoquinodimethane, or bis - (di - # - hydroxyethylaminoethyl) - o - phthaldiamide tetracyano - p - quinodimethane. The conduction is said to be electronic not ionic. An epoxy resin composition comprises the condensate of bisphenol A and epichlorhydrin and stearamide - propyl - dimethyl - hydroxyethyl - ammonium tetracyano - p - quinodimethane which is an electroconductive curing agent and a charge transfer complex.
Patent GB-1100247-A (GB)
Title: Brake assemblies
IPC: F16D53/00
Filed: 1966-08-04
Abstract: 1,100,247. Brakes. GENERAL MOTORS CORPORATION. 4 Aug., 1966 [28 Sept., 1965], No. 35004/66. Heading F2E. A vehicle brake assembly comprises a rotatable annular brake member 32, which has two opposed annular V-section recesses presenting inclined friction surfaces, and two V-section arcuate brake segments 86, 92 which are movable into braking engagement with said surfaces by an actuator 64. As shown, the brake member has an annular flange of X-section providing outwardly and inwardly facing, 40 and 34, respectively, bounded by inclined friction surfaces 60, 62 and 56, 58, respectively, and is secured to wheel hub 20 by wheel mounting bolts 24 or separate means. Alternatively, the sides of the opposite axially-facing recesses 48 and 50 may constitute said friction surfaces. Radial air passages 52 extend through the X-section flange to provide communication between the radially outwardly and inwardly facing recesses for cooling purposes. The brake actuator comprises a floating fluid motor 140, which may alternatively be movably mounted on a support arm (not shown) of the support plate 66 fixed to a steering knuckle 12 of the wheel 22, retained by residue pressure therein between the ends of a pair of levers 72 and 74. The levers rock on rounded edges 80, 82 of an aperture in the fixed support plate at their intermediate portions and engage the brake segments at their inner ends 84 and 96. Actuation of the motor causes scissor-like action of the levers to apply pad 98 inwardly and pad 86 outwardly into braking engagement with the brake member. On release of pressure in the motor, the brake segments release but still ride in light engagement with the brake member. As illustrated in Fig. 4 (not shown), the support plate 66 is provided with brake drag-taking and guide blocks 116, 118 and 124, 126 for the inner and outer brake segments respectively. The blocks at at least one set of brake segments' ends are removable so that worn brake segments may be circumferentially removed and similarly replaced.
Patent GB-772511-A (GB)
Title: Improvements in or relating to releasable coupling for joining mattress frames to bed-ends
IPC: F16B12/60
Filed: 1954-12-03
Abstract: 772,511. Bedstead joints. HENSEL, E. Dec. 3, 1954, No. 35030/54. Class 52 (2). Devices for coupling a mattress-frame to the bed ends are made of thermoplastic material as shown in Figs. 1 and 2, catch plates 1 made of plastic material are let into the end of the mattress frame 14 and have recesses 2 receiving correspondingly-shaped locking members 6 formed on the end of plastic shanks 4 glued into holes in the bed end 15. As shown in Figs. 4, 6 and 8, catch plate 10 is let into the mattress-frame and has recesses 11 receiving the end 13 of hooks 12, the noses of which are received in recesses 7 in a catch plate 9 let into the bed end. As shown in Fig. 9, catch plates 16, 22 are let into the mattress frame and bed end respectively and have downwardly and upwardly projecting tapered parts 19 receiving coupling elements 20 shaped as shown in Fig. 13.
Patent GB-1199924-A (GB)
Title: Improvements in or relating to Control Means for a Machine Tool
Inventor: VARGA JOHN MAXIMILLIAN JULES
IPC: G05B19/16
Filed: 1966-08-05
Abstract: 1,199,924. Programmed electric control. CARDING SPECIALISTS (CANADA) Ltd. July 26, 1967 [Aug.5, 1966], No.35156/66. Heading G3N. To control the relative movement of a tool and workpiece e.g. the turret slide of a lathe, a magnetizable surface such as a tape or drum coupled to the slide has recorded thereon a reference waveform of constant frequency and one or more tracks of a frequency modulated waveform. The outputs from heads (PC)(PV) reading the waveforms are passed to frequency to voltage converters which control the slide travel by hydraulic or other means. Reversal of the slide may be initiated by absence of a signal from the f. m. waveform, but to avoid premature reversal due to slide blockage &c. each f. m. track may have an amplitude modulated end-portion. Speed and direction of rotation of headstock spindle, also indexing of turret may be controlled by additional tracks. Co-ordinate movements such as a cross slide may be similarly controlled by other tapes or drums. Control tapes may be prepared by linking recording heads to a manually operated machine or to a simulating machine. To increase sensitivity impulses from the reading heads may be multiplied. The normal operation of the arrangement is that the speed of the turret is adjusted so that the reading head (PV) senses a constant frequency. The output may be fed into a closed loop control system. The arrangement may control the mechanical hand of a work handling machine.
Patent GB-511117-A (GB)
Title: Improved receptacle for plants and the like
IPC: A01G9/02
Filed: 1938-12-02
Abstract: 511,117. Pots and receptacles for growing plants. CROWE, M. Dec. 2, 1938, No. 35232. Convention date, March 8. [Class 6 (ii)] A flower pot consists of a sheet of metal bent to cylindrical form. The edges overlap and are provided with lugs which can be pressed to separate the edges and expand the pot. The Figures show a sheet metal pot 1 having lugs 4, 5 L-shape and provided with stiffening wings 9. The projecting part of each lug is formed with a hole through which a rod 8 can be passed for lifting or carrying the pot. The top and bottom of the pot are open and the bottom may be provided with notches 6 for drainage. The lugs may be formed out of the metal of the pot itself or they may be attached by welding &c.
Patent GB-1401225-A (GB)
Title: Sample testing apparatus
IPC: G01N35/02
Filed: 1972-07-27
Abstract: 1401225 Automatic analysis; sample container incubation SHERWOOD MEDICAL INDUSTRIES Inc 27 July 1972 [30 July 1971] 35248/72 Heading G1B Testing apparatus comprises a conveyer which may comprise turn-table (24) for carrying one or a plurality of sample-holding containers in positions 44 along a path to a testing station, means for stepwise operation of the conveyer, a testing station adjacent the path, incubation means for incubating the or each sample in its container upstream of the testing station, the incubation means comprising a heat-conductive block 270 having in it recess 272 for receiving at least a part of a sample-holding container, means which may comprise silicone rubber strip heating elements 294 for heating block 270 and means operative conjointly with the conveyer operating means to move the block out of the path before movement of the conveyer and to move the block into the path when the conveyer is halted, the blockmoving means comprising an electric motor connected to the block and dashpot means 288, 292 operatively associated with one of the block and the motor for retarding the rate of movement of the block into the path. The block may have one of the container-holding recesses 272 less deep than the others so that the sample-holding continer at the testing station is lifted off the conveyer for the measurement step.
Patent GB-1401428-A (GB)
Title: Variable ratio drive gear
IPC: G05D13/30
Filed: 1971-07-27
Abstract: 1401428 Variable-speed control LUCAS INDUSTRIES Ltd 13 July 1972 [27 July 1971] 35324/71 Heading F2D A governor valve, for supplying output speed responsive pressure 37 to tangential shift pistons of roller carriages in a constant speed toric disc gear, driving, e.g. an aircraft alternator, includes a transverse cylinder containing a piston 43 subject to governor delivery pressure 37 and acting through a lever 46 on the datum end of a spring 34 opposing governor masses 29, which are pivoted at 30 and control a valve 33 having a land 35 regulating supply pressure 38 to a delivery port 36, the arrangement being such that any change in delivery pressure 37, due to governor action in response to speed change, causes the piston 43 to shift the spring datum 47 so that during the steady state constant speed condition the spring compression remains constant. The transverse piston 43 is supported by a diaphragm spring 44 and acts on the lever 46 through a temperature compensator 45. Transients are eliminated by a restrictor 52 and accumulator 49. A relief valve 53 flation chamber 20 to inflate the seal. To retain is provided in the supply line.
Patent GB-886306-A (GB)
Title: Improvements in or relating to time switches
IPC: G04C1/02
Filed: 1959-10-20
Abstract: 886,306. Timed control of electric circuits. RITTER, H. Oct. 20, 1959 [Nov. 27, 1958], No. 35436/59. Class 118. [Also in Group XXXVII] In an electric clock used for time switching of an external circuit, a spring contact 22, Fig. 1, connected to a low potential D.C. source 24, revolves with a shaft 2 of an hour hand 3 of the clock and periodically touches two contacts 16, 17 on adjustable metal rings 9, 10, which rings are insulated from the clock and connected via two electromagnets 31, 32 to the D.C. source, the circuit being arranged to close momentarily via electromagnet 31 only as the spring contact 22 just begins to touch contact 16, this operation closing the external circuit, and the circuit closing again via the other electromagnet 32 when spring contact 22 touches the contact 17, this operation opening the external circuit. Friction roller 11, operated by knob 14 controls the setting of the metal rings, ring 9 being rigidly attached to an insulated disc 8 which carries contact 16 and index mark 19, Fig. 2, and ring 10 carrying contact 17 and index mark 20, being rotatably attached to the insulated disc 8. As spring contact 22 touches contact 16, current flows from the battery 24 via the circuit; lead 23, shaft 2, spring contact 22, contact 16, metal ring 9, sliding contact 27, lead 29, electromagnet coil 33, lead 35, spring 49, pawl 46, switch lever 39, lead 51; this current exciting electromagnet 31, which then, by means of arm 37, depresses switch lever 39 into the " on " position, where it is retained by pawl 46. In this position pawl 46 is not in contact with the spring 49 and open circuit conditions exist. Switch lever 39, pivoted at point 41 operates a switch 40 in the external circuit. When spring contact 22 touches contact 17, current flows in electromagnet coil 34, spring-loaded contact 53 and the switch lever 39, thus exciting electromagnet 32 and causing arm 38 to release pawl 46 and thus allowing switch lever 39 to return to the " off " position.