baber/WOPTO huggingface dataset:
Patent GB-827329-A (GB)
Title: Improvements in fluid pressure operated servo-assisted braking apparatus
Inventor: FARMERY GEORGE KENNETH
IPC: B60T8/00
Filed: 1957-05-14
Abstract: 827,329. Fluid-pressure brakes. CLAYTON DEWANDRE CO. Ltd. April 22, 1958 [May 14, 1957], No. 15306/57. Class 103 (1). In vehicle braking apparatus embodying fluid-pressure operated servo means such as the master cylinder 1 and servo-cylinder 4 operating a piston 2a, whereby hydraulic pressure is applied to the brake cylinders through connection 2b, the pressure at the outlet from the master cylinder 1 is also applied by pipe 3a, to .the space above a reaction plunger 19. The reaction plunger 19 is formed intermediate its ends with a slot 20 adapted to receive the free end of a horizontally disposed radius lever 21 adapted to pivot about a pin 22 and to be acted upon by a plunger 9, the space below which is subject through connection 15 to the pressure on one side of the servo-cylinder piston. The lower end of the reaction plunger 19 is adapted to be acted upon by a hollow tappet 26 which is moved upwardly by the action of a cam face 25 on the end of a pendulum arm 23 hanging freely with a weight 24. Thus, as the brakes are applied, the resultant deceleration exerts a force on the inertia weight 24 making it swing about pivot 31, causing cam face 25 and tappet 26 to react on the end of rocking lever 21 opposing the load exerted by the reaction plunger and giving a sense of feel to the driver's pedals proportional to the degree of retardation.
Patent GB-1002250-A (GB)
Title: Double signal to noise ratio in a search memory
IPC: G06F11/10
Filed: 1964-04-14
Abstract: 1,002,250. Digital data storage. SPERRY RAND CORPORATION. April 14, 1964 [April 23, 1963], No. 15314/64. Heading G4C. [Also in Division H3] In an associative matrix memory, each column storing a word is provided with an additional element which stores a parity bit for the corresponding word. An improved distinction between match and mismatch of a search word with a word in the store is thus obtained in the case when the search word and stored word differ by only one bit of data since the parity bits then also differ so that an enhanced signalto-noise ratio is obtained. The memory described is a thin film magnetic matrix with non- destructive read-out similar to that described in Specification 854,153, there being a storage film and a read-out film for each bit storage location. Words are stored in columns 20-0 &c. and consist of three data bits stored in cells 12-1 to 12-3 &c. and a parity bit stored in cells 12-P &c. A search word also comprising three data bits plus a parity bit is stored in a register 56 and causes currents of a polarity corresponding to the value, " 0 " or "1," of the corresponding search word bit to be applied to row lines 18-1 to 18-3, 18-P. If there is a mismatch at any storage cell, an output current is produced on the associated column sense line to provide an output at 62 indicative of the mismatch. The effect of the extra parity bit row is that the complete search word will always either equal a stored word or differ from it in at least two bit positions (including the parity bit position) so that the possibility of noise being incorrectly sensed as indicating a mismatch, is obviated. The column sense windings are of circuitous form, as shown at 34-40 in order to reduce selfinductance and to minimize the pick-up of extraneous signal. In a modification (Fig. 2, not shown) each parity bit cell is provided with an individual column sense line, connected, together with the column sense lines for the remaining bits of the column, to an OR gate.
Patent GB-111658-A (GB)
Title: Stopper for Tubes.
Inventor: BRUUN OTTO JOHANNES
IPC: B65D35/42
Filed: 1917-10-22
Abstract: 111,658. Bruun, O. J. Nov. 27, 1916, [Convention date]. Stoppers, screw; stoppers, connexions to prevent loss of.- A cap or closing-device for tubes, such as collapsible tubes or containers, consists of a cap 7, hinged by a metal strap 8 to a collar 5 screwing on the threaded neck 3 of the tube. The lower part of the collar is narrowed so that it cannot screw off the neck.
Patent GB-1218152-A (GB)
Title: Compactor
Inventor: JERNSTROM KARL WALTER
IPC: B09B3/00
Filed: 1969-03-24
Abstract: 1,218,152. Baling press. K. W. JERNSTROM. 24 March, 1969, No. 15400/69. Heading B5F. A device for compacting trash, e.g. garbage including cans and bottles, comprises a housing 12 with a drawer 32 slidably mounted therein which, when open, receives the trash and when closed enables the trash to be compressed by a piston 46 which reciprocates in the drawer and compresses the trash between itself and the drawer front wall 36. The drawer, piston, and the driving means therefore, form a unit which is removable from the housing and includes lower rollers which engage the framework of the housing and upper rollers which engage a plate 40 which closes the compression chamber. The piston is secured to a threaded shaft 48 which passes through a plate 52 secured to the drawer framework, and the shaft is supported at its rear end by a plate 58 from which four rods 56 extend to connect with the piston. An internally threaded sleeve 66 engages the shaft, and when rotated by a reversible motor 94 via gearing 78, 80 reciprocates the piston assembly 46, 48, 56, 58. Ball bearings are located between the interengaging threads of the nut and shaft.
Patent GB-248314-A (GB)
Title: A process for converting mercury into another element
IPC: G21G1/00
Filed: 1925-06-13
Abstract: 248,314. Siemens & Halske Akt.-Ges. Feb. 24, 1925, [Convention date]. Addition to 243,670. Void [Published under Sect. 91 of the Acts]. Elements, converting into other elements.- The process described in the parent Specification and in Specification 247,508 for converting mercury into another element is further modified by passing a discontinuous discharge of high frequency between two electrodes one at least of which consists of or contains mercury. Direct or alternating current may be employed and the high frequency may be obtained by means of interrupters, inductances, or oscillation circuits. The discharge may take place in a gas at atmospheric or higher pressure.
Patent GB-277738-A (GB)
Title: Sucker rods
IPC: F16L15/06
Filed: 1926-06-18
Abstract: 277,738. Marks, E. C. R., (Axelson Machine Co.). June 18, 1926. Rod couplings. - In a coupling for sucker rods 10 of the kind described in Specification 238,593 wherein the threaded portion of each end pin 15 is of uniform diameter externally and at the base of the thread for a portion of its length. the diameter at the base of the thread for the remainder of the threaded portion being progressively larger towards the rod end thereof, the uniform diameter at the base of the threads extends to a point 20 where the tensile strength of the pin is substantially equal to the shearing strength of the threads. In the case of mild steel, for which material a typical calculation is given, the point 20 is at a distance from the end of the pin about equal to one-half of the diameter of the pin.
Patent GB-808742-A (GB)
Title: Glucose test indicator
IPC: C12Q1/66
Filed: 1956-05-17
Abstract: A composition for detecting glucose comprises a mixture of glucose oxidase, peroxidase, and a compound which changes colour in the presence of hydrogen peroxide.  The glucose oxidase may contain catalase.  An aqueous solution of the mixture may be buffered to a pH of 2-8 by the addition of sodium acetate, carbonate, or citrate, and used to impregnate paper strips which are dipped in the liquid to be tested.  Alternatively the mixture may be in the form of a powder or compressed tablets to which a drop of the liquid is added.  The tablets may contain diluents or fillers such as starch, lactose or, bentonite.  In examples the compound which changes colour is o-tolidine dihydrochloride or benzidine dihydrochloride; in the presence of glucose a green to blue colour develops.  Other suitable colour-changing compounds are guaiacols, orcinol, pyrogallol, gallic acid, leucomalachite green, leucophenolphthalein, and iodides together with starchy material.  The compositions may be used for detecting glucose in urine, blood serum, or whole blood. Specification 575,612 is referred to.
Patent GB-222831-A (GB)
IPC: A47J31/10
Filed: 1924-06-26
Abstract: 222,831. Lemoine, J. L. Oct. 1, 1923, [Convention date]. Joints comprising packing protected by air seal; packing expanded by fluid pressure. -In a coffee-making apparatus, the coffee is contained in a funnel g which makes a watertight-joint with the lower side of a hotwater reservoir a and delivers the infusion to a vessel c formed by the space enclosed by a doublewalled cylindrical boiler b communicating with the vessel a by circulating pipes d, e. A packing- ring j is secured to the lower surface of the vessel a and the rim of the funnel g is pressed against it by levers, cams &c. In the arrangement shown, the cover m of the vessel c is formed with cam surfaces n riding on pins o on the inner surface of the vessel c and bears on a ring s surrounding the outlet of the funnel g. The packing ring j is arranged in a sheet metal channel k, Fig. 2, the edge of which dips into the liquid in the funnel g so that the trapped air prevents the liquid from reaching the ring j. In a modification shown in Fig. 3, the ring j is replaced by an annular tube v surrounding the edge of the funnel g and resting in a groove in the wall of the channel k. Water can be pumped into the ring v by means of a pump y to tighten the joint.
Patent GB-299979-A (GB)
Title: Improvements relating to mixing machines
IPC: B28C5/08
Filed: 1928-05-25
Abstract: 299,979. Burn, J. F., and Lancaster, J. S. Oct. 6, 1927. Rotary mixers. - A concrete &c. mixer unit, including the engine, is mounted on its wheeled base so as to be capable of being swung round a vertical pivot. In the form shown in Fig. 1, the frame 2 of the unit is connected to the chassis frame 3 by a central pivot 1, and is provided with a conical ring 6 engaging rollers 4. The unit can be locked in position by passing a bolt through mating holes in the chassis frame and a plate 7 on the mixer respectively. In a modification, the mixer frame is raised slightly before being swung. For this purpose, the frame 2 rests on a collar 20, Fig. 2, secured to the central pivot 1 which is threaded and is turned to raise the frame 2 by means of a tommy 15. In this form, the frame 2 is fitted with pads 22.
Patent GB-1500315-A (GB)
Title: Sheet separating device
IPC: B65H3/06
Filed: 1975-04-15
Abstract: 1500315 Feeding sheets ADREMA PITNEY BOWES GmbH 15 April 1975 [25 April 1974] 15492/75 Heading B8R Sheets are separated from the top of a pile in a hopper 26 by a roller 14 and advanced to the nip between rollers 9, 20, the roller 9 comprising rings 10, 11 of rubber or like soft material and being mounted on a shaft 7 supported in the hopper sides, the roller 14 comprising similar rings 15, 16 and being eccentrically mounted on a shaft 18 supported in walls 6<SP>1</SP>, 6<SP>11</SP> of a housing 6 pivoted on the shaft 7. The roller 9 drives the roller 14 through a belt 13. The rings 10, 11, 15, 16 are formed with axial grooves on their peripheries. The roller 14 seats by gravity on the pile, and as the pile decreases in height the housing approaches the horizontal so that the force increases, and this is compensated by a tension spring 30 extending between the wall 6<SP>11</SP> and a shaft 29 mounted on the hopper sides downstream of the shaft 7. The roller 20 is of stone.
Patent GB-900170-A (GB)
Title: Improvements relating to indirectly heated cathodes
Inventor: WILLMOTT KENNETH NASH KNIGHT
IPC: H01J9/04
Filed: 1960-05-03
Abstract: <PICT:0900170/III/1> The internal surface of a tubular cathode is coated with refractory insulating material by blowing a vapour suspension of this material through the interior of the cathode and heating to stove the coating.  The coating material may be alumina or magnesium oxide with a binder, e.g. ethyl silicate, suspended in a liquid vapour, e.g. methylated spirits and/or acetone.  As shown, the cathode 1 is supported, in a block 2 by use of permanent magnet 3, between a spray gun 4 and an exhaust tube 7 up which a jet of air is blown from air line 8.  In the spray gun, Fig. 2 (not shown), air from pipe 5 is fed through an annular duct surrounding a pipe 6 up which coating material is sucked to be entrained by the air flow in the region of nozzle 11.
Patent GB-138019-A (GB)
Title: Improvements in chassis frames of tractors
IPC: B62D49/00
Filed: 1919-06-23
Abstract: 138,019. Kroyer, J. M. June 23. 1919. Sheet-metal frames.-In a tractor having transmission mechanism between the rear and front wheels on both sides of the vehicle, a casing encloses the transmission gearing and also constitutes the side frames of the chassis. The casing as shown is composed of two dished members 1, 2 riveted together and enclosing the extended hubs 17 of the road wheels. The front and rear hubs are connected by chains 32 on sprocketwheels 20, 31 secured to the inner ends of the hubs. The rear wheels 9 are driven from the engine by internal spur-gearing protected by an extension 23 of the casing, and by the plate 10 closing the outer face of the wheel.
Patent GB-649298-A (GB)
Title: Improvements in or relating to sifting and straining apparatus
IPC: B07B1/38
Filed: 1948-06-10
Abstract: 649,298. Vibratory mechanism; shaft couplings.HURST, J., and RUSSELL CONSTRUCTIONS, Ltd. June 10, 1948, No. 15724. [Classes 80(ii) and 80(iv)] [Also in Groups I, II, XX and XXVI] In straining apparatus of the kind described in Specification 562,210 the out of-balance weight is driven by a coupling which comprises a driving member se cured to the upper end of the shaft of the motor, a driven member secured to the shaft of the out-of-balance weight and a coupling member between the driven and driving members which takes the form of a ring of soft rubber united at a plurality of points to the driving member and at a plurality of intermediate points to the driven member, the rubber where it ex. tends between the points of connection being sufficiently soft and having a radial dimension sufficiently small to makd transverse displacement of the driving and driven members relative to one another easy. As shown in Fig. 1, the apparatus comprises a circular base 11 from which extend upwardly three columns 12 supporting a ring-shaped frame member 13 having seured to it between the points of support three flexible rods 14 mounted in rubber bushes 17. Each rod supports a frame member 22, rubber bushes 20 again being provided, the members 22 extending through the ring 13 and having secured to them a sieve-supporting ring 23. The members 22 have also secured to them a casing 28 in which rotates a flywheel 40, Fig. 4, the ring 23, members 22 and casing 28 constituting the gyratory part of the apparatus. An electric motor 31 supported between the base 11 and a spider 30 has a vertical shaft to which is secured a driving disc 32, Fig. 2, while a driven disc 35 is secured to the lower end of the shaft 37 of the flywheel. A flexible rubber ring 33 between the discs is secured to the upper disc by bolts 36 and to the lower disc by bolts 34, annular holes 38 being pierced between the connections to facilitate transverse displacement of the shafts 37 and 37a. The shaft 37 protrudes through the top of the casing 28 and is here formed with flats 41 such that an adjustment lever 42 carrying an index 43 can be fitted over it in one position only. Within the casing 28, one quadrant 46 of the flywheel 40 forms an immovable weight. The remainder of the flywheel is deeply recessed at 48 to receive a movable weight 47 approximately equal to the weight 46. The weight 47 is secured to the flywheel in adjustable positions by a bolt 49 working in a slot 50, a nut 51 on the bolt 49 being accessible through an aperture in the top of the casing 28. To adjust the weight 47 a box spanner is inserted through the hole in the casing 28 and left in place after the nut 51 is loosened. The lever 42 is then turned to rotate the flywheel, the relative positions of flywheel and weight 47 being observed on a scale 44 on the casing 28. After adjustment the nut 51 is tightened, and the spanner and adjusting lever 42 withdrawn.
Patent GB-1032023-A (GB)
Title: Improvements in or relating to spinning and twisting spindles
Inventor: VITRINSKY IGOR MIKHAILOVICH
IPC: D01H1/241
Filed: 1964-04-16
Abstract: The noise emitted by a spinning &c. spindle is muffled by enveloping a major part of the wharve with a shell mounted on a fixed part and filled with sound-absorbing material e.g. polyurethane foam one shell may be carried by a rotatable arm for ease of access to the spindle.
Patent GB-439043-A (GB)
Title: Improvements in pick heads or stocks
IPC: B25D7/00
Filed: 1934-05-28
Abstract: 439,043. Picks &c. JUPP, E. J., 41, Oak Tree Road, Southampton. May 28, 1934, No. 15783. [Class 61 (ii)] A tapering socket c in a pick head is adapted t( receive one end of a double ended point member &c having a tapered portion d to engage the socket and a shouldered hexagonal portion d by which the member may be turned in the socket to re-set the point d' or to loosen the member for re moval. The point membe may be interchangeable with other tools. Specification 204,950, [Class 61 (i)], is referred to.
Patent GB-1259841-A (GB)
Title: Plated plastics material printing plates
IPC: B41N1/06
Filed: 1969-03-26
Abstract: 1,259,841 Printing plates. UNION CARBIDE CORP. March 26, 1969 [April 2, 1968], No. 15805/69. Heading C7F. [Also in Division B6] A metal-plated plastics material printing plate which is susceptaible of being inked and capable of transferring an image from its surface to some other surface comprises a flexible plastics material having at least one metal coating thereon, said plastics material having a tensile modulus of elasticity of from 50, 000 psi to 250, 000 psi as measured by ASTM Test D638-64T at 23‹ C. The plastics may be a polyamide, a polyolefin such as polyethylene, polypropylene, poly-(butene-1), polychlorotrifluoroethylene, a thermoplastic polyester such as polyethylene-terephthalate and copolymers thereof, or a thermosetting polyester, epoxy-compound, polyurethane or copolymer thereof. The plastic may first be treated with a "latent adhesion promoter" (of which a list is given) which causes the adhesive properties of the plastic to be enhanced by a subsequent oxidation treatment, which may be performed by CrO 3  / H 2 SO 4 , flame treatment, corona discharge, glow discharge, ozonization, or exposure to actinic or high-energy radiation. The plastic is then submitted to sensitization, e.g. using SnCl 2 , followed by activation using a salt of Pt, Pd, Ag, or Au, or else is coated with an initial thin metal film by spraying, gas plating, sputtering, vapour deposition, or decomposition of a metal carbonyl. The treated plastic is then coated with a single electroless layer, e. g. of Cu or Ni, or with a two-layer coating, e. g. Ni plated on Ni or Cu; Cu on Cu or Ni; or Cr on Ni or Cu, or with a three-layer coating which consists of one of the above 2-layer coatings plated with Ni, Cu, or Cr, all layers after the first being deposited by electroplating, and the thickness of the compound layer being 0À01 to 1À0 mil. Other suitable metals for coating the printing plate are Fe, Co-Ni alloys, Sn-Ni and Sn-Cu alloys, and these, as well as the Ni, Cu, or Cr, may contain dispersed hard particles, e.g. of Ni, Si, or SiC.
Patent GB-1080586-A (GB)
Title: Process for producing high purity benzene
IPC: C10G65/06
Filed: 1965-04-13
Abstract: Benzene is recovered from a distillate boiling in the range 60-200 DEG  C. obtained as by-product in the production of gaseous olefins by steam-cracking petroleum hydrocarbons by (1) hydrogenating diolefins with 0.2-2 mols. of hydrogen per mol. of oil at room temperature to 250 DEG  C. and at least 10 kg./cm.2; (2) hydrocracking the resultant oil at 500-800 DEG  C. and at least 10 kg./cm.2 using 2-10 mols. of hydrogen per mol of oil to crack olefins and/or paraffins and dealkylate alkylbenzenes; (3) passing the product over a hydrodesulpuirization catalyst at 100-250 DEG  C.; and (4) separating benzene.  The first step is effected catalytically; if a sulphur-sensitive catalyst is used, hydrogen from the third step which contains H2S should not be recycled direct. More hydrogen is added before the second step which is non-catalytic using a space velocity of 1-6.  The third step is effected at 10-60 kg./cm.2 and is followed by distillation and a clay treatment.
Patent GB-1470383-A (GB)
Title: Apparatus for producing signals indicating increments of angular movement of a body
IPC: G06F7/68
Filed: 1973-04-03
Abstract: 1470383 Pulse rate multiplication LUCAS ELECTRICAL Ltd 29 March 1974 [3 April 1973] 15866/73 Heading G4D A pulse multiplier circuit providing 2<SP>n</SP> output pulses for each input pulse comprises an n+m stage binary counter 14 which counts clock pulses from 15 for the period of the input pulses from 13; a bit rate multiplier 17 which receives as input the output pulses of the circuit and as multiplier the n least significant bits of the count; a divider 16 receiving the clock pulses and delivering the output pulses; and a logic circuit 18 arranged so the divider divides by the m most significant bits of the count while the BRM 17 gives no output and by a value one greater when the BRM 17 gives an output pulse. In Fig. 1 the input pulses are from a transducer 13 responding to magnets 12 on a rotating body 11 to measure its angular velocity, the circuit of Fig. 1 multiplies the input pulses by 16. The seven bit counter 14 counts clock pulses (1 MHz) until an input pulse from transducer 13 causes the value to be transferred to a store 16a and the counter to be reset to zero. Suppose the counter reaches a count of 0100100, that is the period of the input pulses is 36 clock periods. The four least significant digits 0100 are applied to BRM 17 which therefore delivers four pulses for every sixteen pulses it receives from the output of the circuit. The three most significant digits 010 are applied to logic 18 and the divider 16 divides by three (011) to produce four of every sixteen output pulses and by two (010) to produce the other twelve. Hence the divider delivers sixteen pulses for every 36 from the clock or every one from the transducer 13. In a modification an additional bit rate multiplier (19, 20) is inserted between the clock and either the counter 14 or divider 16 (Figs. 2, 3 not shown) to increase or decrease the number of output pulses. In a modification to the logic (Fig. 4, not shown), the divider 16 always divides by the same value but a pulse is deleted from its input by the BRM 17. An arrangement is also described using binary coded decimal instead of binary circuits whereby 10<SP>n</SP> pulses are inserted instead of 2<SP>n</SP>.