baber/WOPTO huggingface dataset:
Patent GB-696628-A (GB)
Title: One-way clutch
IPC: F16D41/07
Filed: 1952-01-16
Abstract: 696,628. Free-wheel clutches. FORMSPRAG CO. Jan. 16, 1952 [Feb,. 5, 1951], No. 1326/52. Class 80 (ii), In a free-wheel clutch for light loads compim ing sprags G arranged between driving and driven races A, B, the sprags are formed as stampings from thin sheet material. Each of the sprags, which are held in place between a flange C of the member A and a cover H, has eccentric end portions G<SP>1</SP>, G<SP>2</SP> co-acting with the races and a straight side G<SP>3</SP> while the other side has oppositely - inclined portions G<SP>4</SP>, G<SP>5</SP> connected by a rounded portion G<SP>6</SP>, a V-shaped wire spring I being interposed between one or more pairs of sprags.
Patent GB-589672-A (GB)
Title: Improvements in the construction of travel cases and the like
IPC: A45C5/02
Filed: 1945-01-17
Abstract: 589,672. Suitcases &c. NOTON, Ltd., S., JERVIS, J., and POLTURAK, L. G. Jan. 17, 1945, No. 1368. [Class 18] The corner edges 2 of suit and like cases are provided with perforations 3, cuts or openings and are bonded together by a plastic or mouldable composition which is moulded over the joint and caused to flow into the perforations &c. Alternatively the corner edges are formed with dovetail or other interlocking portions 12, 13 arranged to provide openings into which the composition can be pressed. The composition may be applied to the corners in the form of strips of rubber or synthetic rubber, strips being applied to the inner and outer faces of the .joints. Alternatively one of the strips may be of mouldable material and the other strip of leather or fibre combined with the composition. The mouldable strip or strips may have a central longitudinal rib or spaced longitudinal ribs to provide the bonding material to enter the perforations &c. The case corner and the two strips 4, 5 are placed between the upper and lower dies 6, 7 of a press which force the mouldable material into the perforations &c. Channels 15 are provided in the dies so that steam or cooling water can be supplied, and the water or steam may be used to operate the dies.
Patent GB-839644-A (GB)
Title: Diagnostic composition
IPC: C12Q1/54
Filed: 1957-01-14
Abstract: A test indicator suitable for detecting glucose in urine comprises a bibulous material such as paper, containing a mixture of glucose oxidase, peroxidase, a compound changing colour in the presence of hydrogen peroxide, a surface-active compound having a solubilizing effect on the components of the mixture, and, preferably, a buffer maintaining the pH of the mixture at 4-6 in the presence of urine. The surface-active compound is a polyoxyethylene glycol, a polyoxyethylene sorbitan monolaurate or an anionic surface-active agent such as the dioctyl ester of sodium sulphosuccinate.  An example gives details of the preparation of impregnated paper strips using horseradish peroxidase, o-tolidine as the indicator, polyoxyethylene-polyoxypropylene-polyoxyethylene glycol as the surface-active agent and a potassium acid phthalate buffer adjusted with sodium hydroxide.
Patent GB-523818-A (GB)
Title: Drying or airing rail to be attached to cylinder or boiler
IPC: D06F57/12
Filed: 1939-01-16
Abstract: 523,818. Clothes rails. LOCKEY, A. E. Jan. 16, 1939, No. 1398. [Class 52 (v) ] A drying rail for attachment to a hot water cylinder &c. comprises a partcircular rod a with radial projections b, c at the middle' and ends to space it from the cylinder, and a spring d' or screw clamp connecting the free ends. A rubber cap may be fitted over the projection b.
Patent GB-1082620-A (GB)
Title: Swimming pool vacuum cleaner
IPC: A47L7/00
Filed: 1966-01-12
Abstract: 1,082,620. Cleaning swimming pools. R. CONRAD. Jan. 12, 1966, No. 1480/66. Heading A4F. A suction cleaner for cleaning a swimming pool comprises a plate 1 movable by a handle 3 over the walls and floor of the pool and formed with a suction nozzle 14 connected by a hose 2 to a suction pump (not shown). The plate 1 is spaced by adjustable rollers 25, 26, 27 from the surface to be cleaned, and the side of the plate 1 which during use faces that surface is formed with arcuate grooves extending partially around the nozzle opening to cause the water to move with a swirling motion into said opening.
Patent GB-1495869-A (GB)
Title: Washing and drying machine for domestic use
IPC: D06F25/00
Filed: 1976-01-14
Abstract: 1495869 Rotating drum dryer ZEROWATT SpA 14 Jan 1976 [5 May 1975] 01487/76 Heading F4G [Also in Division D1] A washing and drying machine comprises a rotatable and/or oscillatable drum 5 in a washing chamber 4 having an access door 1 and is provided with air-drying means, comprising suction means 8 for drawing air in through the door 1 into a space 10 between the drum and the wall of the chamber and for expelling through a filter 9 the air together with water vapour extracted from the laundry, and one or more heating elements 6 in the space 10, for heating both the washing liquid and the air sucked into the space. Air is drawn in through openings 2, 3 and passes partly into the space 10 and partly into the drum. The elements 6 are preferably of the electrical resistance type. The air-drying operation may be preceded by a spin-drying stage.
Patent GB-465006-A (GB)
Title: Hydraulic clack-adjusting means for use for example with valveoperating mechanism
IPC: F01L1/24
Filed: 1936-01-17
Abstract: 465,006. Valve gear. RILEY, P. Jan. 17, 1936, No. 1541. [Class 7 (vi)] A hydraulic device for taking up slack or clearance comprises a plunger 17 sliding in a cylinder 16 which is supplied at 20 with hydraulic pressure, such as from the lubricating-pump, the supply being controlled by a valve 19 connected by a lever 25 to the device moving over the abutment, for example a sliding cam bar 12. A leakage at 21 is controlled by a valve 22, or by a groove 22a in the valve 19. A cam surface 27 on the bar 12 actuates a valve 15 through a spring-pressed rocker 14.
Patent GB-1510557-A (GB)
Title: Method of microbiological analysis
IPC: C12Q1/18
Filed: 1976-01-15
Abstract: 1510557 Microbiological testing C G HEDEN 15 Jan 1976 [15 Jan 1975 7 Oct 1975] 1664/76 Heading C6F A method of microbiological analysis for enabling the effects of different reagents on a strain of microorganism to be tested simultaneously, comprises forming an elongate strip of culture medium combined with the strain of microorganism, and dividing the strip into segments by inserting partitions at intervals along the length of the strip, each of these segments being completely separated from the adjacent segment(s) by the partitions and being provided with a respective reagent. Fig. 3 depicts a strip 1 of agar medium, including cells of the microorganism under test, supported on a plastics strip. The edge of the support strip is bent upwards at intervals to form flanges 3. The partitions 5 and 6, Fig. 3, may be inserted in pairs coupled together by a respective base-plate 11. The unit is moulded from polymeric material. The reagent may be applied to the base-plate, see 9 on Fig. 2a, or carried on a gel plate 10, Fig. 2b, which melts below the incubation temperature. In a further embodiment, a series of partitions 17, Fig. 5, mounted on a holder 16 is notched into grooves 15 formed in the side walls of the support 14. The different reagents may be provided along the length of the culture strip 18 before the partitions are introduced. Alternatively, the reagents may be carried in gel plates disposed on the holder 16.
Patent GB-739912-A (GB)
Title: Improved sweetening process for sour hydrocarbon distillates of petroleum origin
Inventor: GOUGH KENNETH JOHN
IPC: C10G27/08
Filed: 1953-01-21
Abstract: Sour hydrocarbon distillates of petroleum origin are sweetened by treatment with cupric chloride, so that mercaptans present are converted to disulphides, and sufficient anhydrous hydrogen chloride is injected into the sweetening zone to replace that lost in the water removed with the sweetened product.  The hydrogen chloride may be injected continuously at a controlled rate or may be injected periodically in an amount sufficient to convert any cuprous chloride formed back to cupric chloride.  In an example, a cracked naphtha boiling in the gasoline boiling range is first washed with aqueous caustic soda to remove hydrogen sulphide, phenols and low molecular weight mercaptans.  It is then water-washed, dried and preheated. The preheated naphtha is then passed to the sweetening zone where it is contacted with a slurry containing cupric chloride and clay. Oxygen to aid in the reconversion of cuprous chloride to cupric chloride may be introduced into the naphtha immediately before it reaches the sweetening zone, while the hydrogen chloride is introduced into the sweetening zone.  The sweetening naphtha may be passed to a slurry settling zone where the cupric chloride-clay slurry settles out to be returned to the sweetening zone and the naphtha product may be water-washed and then freed of water and solids in a further settling zone. p
Patent GB-103692-A (GB)
Title: Improvements in or relating to the Manufacture of Rubber Goods, and the like.
Inventor: SLOPER THOMAS
IPC: B29D22/02
Filed: 1916-02-05
Abstract: 103,692. Sloper, T. Feb. 5, 1916. Vucanizi n g , cores for; vulcanizing in flexible envelopes. - Tapered a i r chamber sections D, more particularly for use with aircraft, such as are described in Specifications 21863/13 and 25605/13, [Class 140, Waterproof &c. fabrics], and made of cords or canvas coated or permeated w i t h rubber or of material treated with oil compounds &c., are built up on a former A and, before being vulcanized or allowed to set, have an envelope U stretched tightly over them. A binding G is then secured over the envelope for the purpose of applying pressure to the article during vulcanizing or setting. The envelope C may be in the form of a truncated cone, in which case pressure is applied to the end by means of a cap E, to which a flange E<2> may be secured for the purpose of holding the binding. The envelope, which itself may be formed upon the former from canvas having an interior surface of vulcanized rubber, may be stretched by means of hooks F carried by a disk or spider F<1>. The Provisional Specification refers also to making rubber-goods in general and not necessarily conical.
Patent GB-122703-A (GB)
Title: Improvements relating to Ploughs.
Inventor: FERGUSON HARRY
IPC: A01B59/06
Filed: 1918-02-01
Abstract: 122,703. Ferguson, H. Feb. 1, 1918. Ploughs.-Single and multiple furrow tractor ploughs are provided with special means, between the tractor and plough frame, for holding the plough in the ground, for transferring weight from the tractor or front of the plough to the rear, for assisting in lifting the plough, for allowing vertical and lateral movement, and for limiting the lateral movement when the plough is raised or is being reversed. Fig. 1 shows means for holding the plough down by the weight of the tractor. The head a<19> of the plough swivels on a stud a<15> on a forked head a<13> which swivels on a vertical safety-pin a<14> passing through the crank-pin b<47> of the ordinary coupling and lifting-cranks b<46>. The plough frame a is adjusted about the stud a<15> by means of a locking-lever a<18> and a toothed quadrant on the forked head a<13>. A spring a<12> fixed to the head a<13> engages a plate b<44> on the tractor so as to put pressure on the rear of the plough when it rises, and to assist in lifting the front. Catches b<49> engage with stops a<70> when the plough swings to the right or left, thereby inclining the axis about which it turns and so producing a vertical movement. Fig. 3 shows a. modification in which a triangular lever b<54> is mounted on the crank-pin b<52> and is connected by springs b<57> to the crankarms b<51>. It is provided with a semicircular face engaging an abutment a<21> on the combined quadrant and forked head a<16>. When the plough is lowered into the ground, the springs tend to lift the front and transfer its weight, and the weight of the tractor, to the rear of the plough. The springs may be adjustable. Stoppers a<24> limit the lateral movement of the plough, about the safety pin a<20>, by engagement with the bosses b<60> of the crank-arms b<51>. The bosses b<60> may be eccentric so as to reduce the freedom of movement when the plough is raised. The action of the springs is neutralized, when the plough is raised to a certain height, by the engagement of a stop b<61> with the lever b<54>. This relieves the pressure on the safety-pin a<20> and so facilitates attachment and detachment of the plough. Fig. 4 shows means for utilizing the draught of the plough. When the pull comes on the arms b<63> and links b<66>, the toothed sector b<67> turns relatively to the sector b<71>, engaging with it, and causes the lever arm b<69> to exert pressure on an abutment a<27> on the forked head a<25>. Any upward movement of the rear of the plough tends to produce acceleration of the shares through the ground. According to the Provisional Specification, the lever for raising and lowering the plough frame may be automatically moved into correct position when the implement is reversed.
Patent GB-782283-A (GB)
Title: Electronic pulse generator
IPC: H03K3/04
Filed: 1955-01-21
Abstract: 782,283. Pulse and sawtooth generating circuits. EBAUCHES SOC. ANON. Jan. 21, 1955 [Jan. 22, 1954; Jan. 6, 1955], No. 1847/55. Class 40 (6). In an electronic pulse generator for producing steep-sided pulses the positive-going edges are obtained by a coupling between the control grid and auxiliary cathode of a secondary-emission discharge tube. Fig. 1 shows a pulse generator comprising a secondary-emission tube T1, the auxiliary cathode K2 of which is coupled to the control grid g1 via capacitor C, the tube being initially cut off by returning its cathode K1 to a positive potential. When the tube is rendered conducting, for example by raising the cathode potential, current flows from the auxiliary cathode K2 so that its potential rises rapidly, this rise is transmitted via capacitor C to the control grid g1 the action being cumulative so that a positive-going voltage step is produced at cathode K1, Fig. 2 (not shown), until the back E.M.F. generated across inductor L causes a drop in potential at auxiliary cathode K2 and thus at control grid g1 so that the tube is cut-off and the voltage at the cathode K1 rapidly falls. The fall in voltage at grid g1 is limited by catcher diode D and the amplitude of the output at auxiliary-cathode K2 is limited by resistor R. In a modification shown in Fig. 3 a pentode T2, operating as a constant current device, constitutes the cathode load for secondary-emission tube T1 so that a sawtooth voltage, Fig. 4 (not shown), is generated at the cathode K1. The anode current of tube T2 may be suppressed during the positive pulse front on cathode K1 by a coupling between the control grid g1 of tube T2 and the anode of tube T1. The circuit may be synchronized by applying a control voltage to tube T2 at point Vg or the circuit may function as a frequency-divider, Fig. 6 (not shown.). In a modification shown in Fig. 8 the auxiliary cathode K2 and the control grids of tubes T1 and T2 are tapped on to a potential divider connected across the H.T. supply and a capacitor Cc is periodically charged through an impedance Z by the voltage rise at cathode K1 and discharged through tube T2 output pulses are obtained at lead S after passing filter C1, C2, L, Ra. Positive synchronizing pulses are applied to the control grid g1 of pentode T2 and the oscillating frequency of the circuit may be controlled by varying the resistor Rk or capacitor Cc so that by adjustment of Rk the tube T1 will conduct after n control pulses so that a frequency division of n is obtained. In a modification, Fig. 9 (not shown), the suppressor grid of the secondary-emission tube is connected to the potential divider a few volts above its control grid and the auxiliary cathode is connected to a point such that most rapid reaction is obtained.
Patent GB-606827-A (GB)
Title: Improvements in or relating to cash trays
IPC: G09F23/04
Filed: 1946-01-19
Abstract: 606,827. Advertising on cash trays. SCHMIDT, H. C. E. A. P. Jan. 19, 1946, No. 1885. [Class 3(i)] In cash trays in which a coin placed on a tray completes an electric circuit through a lamp illuminating a display panel, the tray surface consists of an insulating plate 11 formed with grooves in which lie contact wires. Holes through the plate 11 at the ends of the grooves permit the wire ends to pass underneath, where alternate wires 16 are connected through the illuminating lamp 22 with a battery terminal 20, and the intermediate wires 17 are connected to the opposite terminal 21. The battery may be held in a frame comprising ribs integral with the container 10 forming the base of the tray. The cashreceiving portion of the tray may be tapered, as shown, or be circular, and the display portion may be upwardly inclined toward the rear, Figs. 4 and 6, (not shown).
Patent GB-224127-A (GB)
Title: Improvements in and relating to trivets for ranges, fire places and the like
IPC: F24C15/30
Filed: 1924-01-24
Abstract: 224,127. Triplex Foundry, Ltd., and Horrell, C. R. Jan. 24, 1924. Trivets, in which an open-fronted heating chamber is arranged below the topplate comprise a top. plate a mounted on legs b, a bottom plate h, and enclosures d round the sides except that facing the fire. The bottom plate may be formed with a recess h to fit against the grate front, or it may extend only a part of the way towards the front of the trivet. It may be inclined upwards to meet the rear edge of the top-plate, or its rear portion may be curved upwardly. Hooks g for securing to the grate front are provided.
Patent GB-342503-A (GB)
Title: Improvements in lampshade holders
IPC: F21V17/06
Filed: 1930-01-20
Abstract: 342,503. Lamp shades. BENSON, A., 35, Werter Road, Putney, London. Jan. 20, 1930, No. 1940. [Class 75 (ii).] In an electric incandescent lamp holder, the usual shade-retaining ring or nut 17 is provided with one or more shade-retaining tongues 21 each of which has an enlargement which, when the ring moves away from the lamp end of the holder, extends radially from the holder and engages the inside of the lamp shade. As shown, the shade is supported by enlargements 22 on two tongues 21 on a circular wire member 20 fitting into an internal groove 19 in the nut 17. In the body 16 of the holder, grooves 12 accommodate the tongues. When the nut is in its lowest position, the tongues spring inwardly into the bayonet slots. The tongues may be pivotally attached to the carrier member. The grooves 12 form internal ridges on the body of the lamp holder to engage with the contact-holder unit within the lamp holder. The Provisional Specification describes also the formation on the lower part of the shaderetaining ring of a left-hand screw thread, upon which is screwed a locking-ring which bears against the lamp shade. Rigid levers hinged to the bent spring may be employed.
Patent GB-539325-A (GB)
Title: Improvements in coupling components for photographic colour development processes
IPC: G03C7/36
Filed: 1940-02-01
Abstract: 539,325. Cyanacetyl-ureas and -guanidines. KODAK, Ltd. (Eastman Kodak Co.). Feb. 1, 1940, No. 1961. [Class 2 (iii)] [Also in Group XX]  A colour coupler for colour development has the general formula NHR-CX-NR<SP>1</SP>-CO-CH 2 - CN, where R and R' are hydrogen or the same or different alkyl, aryl, or heterocyclic groups, which may be of high molecular weight, and is oxygen, sulphur or =NH. Examples specified are cyanacetylurea, y -butyl-α-cyanacetyl-urea, γ-phenyl-α-cyanacetyl-urea, γ-lauryl-α-cyanacetyl-urea, cyanacetylthiourea, and cyanacetylguanidine. The cyanacetyl derivatives are prepared by the reaction of cyanacetic acid and ureas or guanidine in the presence of a de-hydrating agent such as phosphorus oxychloride or acetic anhydride.
Patent GB-210449-A (GB)
IPC: B31C7/00
Filed: 1923-04-14
Abstract: 210,449. Southern Novelty Co., (Assig. nees of Kennedy, G. H.). Jan. 25, 1922, [Convention date]. Paper and fibrous pipes and tubes.-In apparatus for winding a paper or like blank on a conical mandrel, a part of the front edge of the blank is passed under a tongue 15 overhanging a recess which extends along a part of the length of the mandrel. The edge of the paper is then gripped between the tongue 15 and a block 13 moving radially within the mandrel under the action of an inclined surface of a longitudinally-movable bar 19. The block 13 and bar 19 preferably have a tongue-and-groove connection as shown. A blank having a straight front edge, the central part of which is held as described, may be used; its front edge may be feathered in order that the interior of the finished cone may be as nearly conical as possible. After winding, the rough ends of the cone may be trimmed while the front edge of the blank is still clamped. The cones made may be used in the textile industry.
Patent GB-214009-A (GB)
Title: Improvements in and relating to reciprocating pumps
IPC: F04B9/14
Filed: 1923-01-24
Abstract: 214,009. Sim, T. Jan. 24, 1923. Bucket plunger pumps ; priming.-In a pump having a non-return valve b and an outlet at the opposite ends of the cylinder and a non-return valve f in the plunger, priming means are provided and the plunger is made of large volume to ensure a continuous discharge. Fresh liquid is drawn past valve b and the liquid in the annular chamber i is simultaneously ejected. A volume of liquid equal to half the cylinder volume is discharged each stroke. The discharge cock (not shown) may be closed and a pipe attached to connection l. Priming is effected by a partitioned trap g, or by carrying the suction pipe in the form of a U-bend to the top of the cylinder.
Patent GB-552518-A (GB)
Title: Improvements in and connected with bus bars or connecting links for use in electrical wiring systems
IPC: H01R9/24
Filed: 1941-10-06
Abstract: 552,518. Distribution and fuse boards; couplings. CRABTREE & CO., Ltd., J. A., Mc- LOUGHLIN, H. F., HILL, W. E., MORGAN, R. W., and WINTLE, T. D. G. Oct. 6, 1941, No. 2214/42. Divided out of 552,503. [Class 38 (i)] A bus-bar or connecting link for interconnecting the couplings or fuse clips for a distribution box for aircraft comprises a strip a having a series of uniform lateral apertured extensions b that can be bent at right angles to fit under the fuse clips &c. n or can be cut off at any point where a connection is not required. A pair of bus-bars may be bent at t to bring the terminals b<SP>1</SP> into line with supply terminals, alternate extensions b being removed so that one pole is connected to alternate contacts such as the fuse clips n, and the other pole to intermediate contacts such as the straps v or to other fuse clip if a double-pole fuse box is desired. The outer fuse clips m and the ends of the straps v are formed to co-operate with switches o associated with the socket couplings d<SP>1</SP>. In another arrangement the bus-bars are employed to interconnect as desired rows of socket couplings on a distribution board. Specification 552,503 is referred to.
Patent GB-210770-A (GB)
Title: Improvements in or relating to the sterns of propeller operated vessels
IPC: B63B1/08
Filed: 1924-01-28
Abstract: 210,770. Taylor, D. W. Jan. 31, 1923, [Convention date]. Hulls. - In order to reduce the resistance to propulsion the water lines of the submerged portion of the stern immediately forward of the propeller are spaced apart laterally a distance sufficient to accommodate the stern post and extend forward substantially parallel to the fore and aft line for a material distance and then divers on outward curves. In the case of a single-screw vessel, a horizontal shelf 20<1> W.L. is formed about the propeller space and stern post and dies out aft. The water lines below the shelf and thereabouts extend forward at an angle to a fore and aft line not greater than 5‹.