baber/WOPTO huggingface dataset:
Patent GB-682289-A (GB)
Title: Improvements in and relating to suspensions of polymeric chlorotrifluoroethylene
IPC: C09D127/12
Filed: 1950-11-07
Abstract: Solid polymeric chlorotrifluoroethylene is suspended in a substantially anhydrous mixture of a saturated aliphatic monohydric alcohol and a saturated aliphatic dihydric alcohol. Monohydric alcohols specified are n-propyl alcohol, iso-propyl alcohol, n-butanol, tert.-butyl alcohol, n-amyl alcohol, 2-methyl butanol, 3-methyl-2-butanol, 2-ethyl hexanol, propyl hexyl carbinol, diethyl amyl carbinol, beta-ethoxyethanol, beta-propoxyethanol, beta-methoxyethanol, and beta - ethoxyethoxyethanol.  Dihydric alcohols specified are ethylene glycol, trimethylene glycol, propylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, 2,3-butylene glycol, tetramethylene glycol, diethylene glycol, dipropylene glycol, 2-methyl-2,4-pentanediol, and 2-ethyl-2,4-pentanediol.  The suspensions may be prepared by comminuting the polychlorotrifluoroethylene, mixing the finely divided polymer with the monohydric and dihydric alcohols and grinding.  The suspensions may contain pigments and fillers such as catalpa clay, bentonite, mica dust, titanium dioxide, silica, lead silicate, and lead titanate.  Wires coated with the suspension may be passed through a heated oven to coalesce the polymer particles.  The suspensions may also be used to impregnate fillers and fabrics such as glass cloth, glass batting, asbestos cloth, asbestos floats, bentonite-asbestos films, and mica.
Patent GB-934987-A (GB)
Title: A device for feeding articles from the bottom of a stack
IPC: B65G59/06
Filed: 1960-08-05
Abstract: 934,987. Discharge of articles from magazines. D. R. P. JACKSON, and MOLINS MACHINE CO. Ltd. Aug. 4, 1961 [Aug. 5, 1960], No. 27208/60. Class 78 (1). Articles 2 are discharged in batches from the bottom of magazine 1 by pusher 3, of which face 4 propels the batch whilst face 5 supports the remainder of the stack. Pusher 3 is fixedly but adjustably carried by slotted bar 6 and guided by roller 7 carried thereon. Slotted bar 6 is propelled by blocks 11 and 12 operated by cranks 9 driven by gearing 10 from motor 16. Block 11 is connected to a fixed point 14 on slotted bar 6 by springs 13 so as to support the bar against gravity. Rotation of cranks 9 by motor 16 causes blocks 11 and 12 to move along the slot of bar 6, and this causes bar 6, guided by roller 7, to move the pusher 3 horizontally over the bottom of magazine 1 to expel a batch of articles. When the cranks have rotated through 180 degrees they engage fixed abutments 18 and 14 on slotted bar 6, and cause bar 6 together with pusher 3 to perform a downward trajectory as the pusher is returned to its original position. In this way, face 5 supporting the rest of the superposed articles is lowered gently till the next batch is in position for discharge.
Patent GB-225343-A (GB)
Title: Improvements relating to slicing machines
IPC: F16C29/00
Filed: 1923-10-31
Abstract: 225,343. Berkel, C. F. M. van, and Thomas, H. Oct. 31, 1923. Cutting slices in succession.-In order to prevent canting or binding, the feed or meat table is guided on the under table or carriage by means of a single narrow guideway, engagement being maintained by a retaining-member which can be disengaged at will. In the form shown in Figs. 1 and 2, a narrow strip or tongue 5 on the meat table has a sliding fit between two upstanding ribs on the undercarriage and is retained in engagement by a strip 7 engaging in an undercut recess in one of the ribs and actuated for withdrawal and engagement by cams 15 and springs 11. In two similar forms the strip 7 is replaced by two tapered strips 20, 21, Fig. 3, and bv a horizontally disposed strip 60, Fig. 7, formed with apertures in which engage a number of eccentrics or cams 62. In the form shown in Fig. 9, a retaining-member 71 of bulbous section is pivoted to the rigid tongue 70 and operated by a rod 74. As shown in Fig. 6 the retaining-strip 46 is mounted so as to be tilted for disengagement by wipers 49. In the modification shown in Figs. 11 and 14, the retaining-member is mounted on the undercarriage, taking the form of a pivoted strip 79 in the first and a pivoted cam-like member 113 in the second. Fig. 12 shows a modification in which the member 97 carrying the half nut 98 is adapted, when lifted to disengage the feed, to disengage also the retaining strip 88 pivoted at 89 to the meat table. In a slight variation of this construction the guide groove is formed on the meat table and the corresponding tongue on the undercarriage. In the three remaining modifications, one form of which is shown in Fig. 15, the tongue is also on the undercarriage and there is either a groove on the meat table or, as shown, a number of deeply grooved rollers 121, the retaining member in all three forms being a pivoted strip such as 125 operated by screws such as 151 against the action of springs. The feed nut may in all cases be disengaged by the operating means for the retaining member.
Patent GB-262400-A (GB)
Title: Improved braking means for driving mechanism especially for mechanical toy railways
IPC: A63H29/04
Filed: 1926-11-01
Abstract: 262,400. Bing-Werke vorm. Geb. Bing Akt.-Ges. Dec. 7, 1925, [Convention date]. Mechanical toys.-In a toy locomotive, the axle a of the spring-driven driving-wheels r carries a ratchet wheel d adapted to be engaged by a lever h<2> pivoted to the frame when the lower end of the lever comes into contact with a pivotal or slidable member b arranged in the track. The toy is thus brought to a standstill, but can be re-started without the manipulation of the usual levers by being moved backwards until the lever h<2> falls by gravity out of engagement with the wheel a.
Patent GB-640950-A (GB)
Title: Method for the production of streptomycin involving the use of a fermentation medium containing yeast
IPC: C12R1/545
Filed: 1947-10-13
Abstract: Streptomycin is produced by the propagation of a streptomycin-producing actinomycete in an aqueous medium containing yeast, an added source of carbon (e.g. a carbohydrate such as dextrose) and inorganic salts under aerobic submerged conditions. The yeast may be present as the extract, but whole yeast is preferred, either dried brewers' yeast or specially cultivated for the purpose.  A preferred culture medium contains by weight 2.5 per cent dry yeast, 1.0 per cent dextrose and various specified nutrient inorganic salts, made up to 100 per cent with water.  This is sterilized, inoculated with Streptomyces griseus and incubated at about 28 DEG  C. under aerobic submerged conditions with constant agitation for 3-4 days.  The medium is then filtered, the streptomycin adsorbed on activated charcoal and eluted with a low normality aqueous alcoholic acid solution. Examples show the yield obtained using dry yeast and yeast extract, the figures for a conventional meat extract being given as comparison.
Patent GB-668359-A (GB)
Title: Improvements in and relating to gas-blast electric circuit-breakers
IPC: H01H39/00
Filed: 1948-06-03
Abstract: 668,359. Breech mechanisms. WHITNEY, W. B., BRISCOE, E. M., HUDSON, A. A., and BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION. April 11, 1949. [June 3, 1948] No. 27391/50. Divided out of 15036/48. Class 92 (ii). [Also in Group XXXVII] A gas-blast switch in which explosive cartridges are used to provide the pressure-gas for arc extinction and contact operation (see Group XXXVII), has a number of individual breech mechanisms for the cartridges. Each cartridge 40 is held in a cage 41 closed at the bottom by a disc 42, the cage being upwardly biassed in the breech 39 by spring 43 held in position by a cap 44 with a bayonet joint. The disc 42 has a downward extension 29 with a protuberance 33 and an arm holding contacts 22 closed. The firing fuse 12 is connected at one end to the disc 42 and at the other end to a terminal 46 which is engaged by an insulated conducting member 45. When the cartridge is fired, the gases evolved pass through a spring loaded non-return valve 146 into the switch container (not shown), the cage 41, 42 moves down against the spring 43 and the contacts 22 are opened, the cage being held down by the engagement of a latch 34 with the protuberance 33. If the cartridge had failed, the contacts 22 would not have been opened, so that a firing circuit (not shown) would have remained completed for the firing of a second cartridge. The latch may be released by a solenoid 36, so as to permit the contacts 22 to reclose to complete the firing circuit for a further operation of the gas-blast switch.
Patent GB-426563-A (GB)
Title: Improvements in or relating to burnishing or like machines for use in the manufacture or repair of boots or shoes
IPC: A43D95/06
Filed: 1933-10-05
Abstract: 426,563. Boot - making machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., RICKS, F., and BAGSHAW, C. M., Belgrave Road, Leicester. Oct. 5, 1933, No. 27419. [Class 17 (i)] Burnishing.-A machine for burnishing the edges of top-pieces of heels has an oscillating tool the surface of which subtends an angle about the axis of oscillation of considerably over 20 degrees so that the top-piece may be moved in a circular path from one side of the axis to the other while in contact with the burnishing face. The tool may have a plurality of circular burnishing faces 23, 25, 27 of decreasing size to suit different heels. Flats 37 may be formed on the surfaces, and may extend just over half-way across the surfaces alternately from their forward and rearward edges. Grooves 35 ensure a sharp edge at the tread surface. A flange 29 provides a tread gauge for the rearmost surface, and steps 31, 33 for the forward surfaces. The tool is oscillated by mechanism of the kind described in Specification 5355/05, [Class 17], comprising a rotated shaft 7 with an aslant portion 11 engaging a sleeve having pins 15 engaging a box-like yoke 19 secured to the shaft 5 of the burnishing tool. The smallest surface may be of three inches diameter and the tool may oscillate four thousand times a minute, the oscillation being threesixteenths of an inch at the surface of the largest disc. In operation, a shoe may be held by the operator with a breast edge of the top lift against the chosen burnishing surface, the shoe being then swung to cause the whole side and rear edges of the lift to traverse the lower portion of the tool from one side to the other of the axis of oscillation. If desired the breast edge may, then, be burnished. The tool may be heated by gas or electricity. According to the Provisional Specification, the tool may be a disc of some six inches diameter with differing burnishing surfaces on each 120 degrees.
Patent GB-185661-A (GB)
Title: Improvements in or relating to aircraft of the helicopter type
IPC: B64C23/00
Filed: 1921-10-15
Abstract: 185,661. LamÚ, M. L. V. Oct. 15, 1921. Aerial machines with aerostats; helicopters; steering, balancing, and regulating altitude.-In an aerial machine of the kind adapted to be supported by the simultaneous action of lifting propellers, an aerostat, and planes, the two lateral lifting propellers 3 are mounted on the extended framework 19 of the aerostat 4, which can be adjusted about the axis 23 relatively to the glider member 5. The machine is shown in the position it occupies when on the ground. In horizontal flight, the aerostat is more or less in line with the glider member, the angle between the two being adjustable by the pilot by cables. The cables for operating the elevator 21 and interconnected double rudder 22, pass through the axis 23. The aerostat supports 1/10 of the weight of the machine.
Patent GB-339674-A (GB)
Title: A process for obtaining artificial marble
IPC: C04B14/30
Filed: 1929-09-10
Abstract: 339,674. Galcerßn, F. RosÞs-. Sept. 10,1929. Processes; moulds. - In the production of blocks of artificial marble a polished plate of glass, crystal, steel, brass or other material, which has been moistened with a mixture of oil and petroleum and then cleaned, is placed at the bottom of the mould. The mould is then charged with three layers of material, the first a wet mixture of cement and ochre or other earthen colouring matter to which zinc white is usually added, the second a dry mixture of fine sand and cement, the third a wet mixture of rough sand and cement. The block is allowed to set and dry first in the mould and then after removal. It is finally moistened with linseed oil, preferably boiled, this operation being repeated three or four times.
Patent GB-1122555-A (GB)
Title: A reversible hardening compound
IPC: C04B26/02
Filed: 1966-06-21
Abstract: A reversible hardening compound comprises in volume parts, 1 of gypsum, 7 of vermiculite and 1 of gelatine which are mixed either with cold water and warmed, or with warm water, to form a stiff paste.  Pentachlorometacresol and vanillin are optional.
Patent GB-1365046-A (GB)
Title: De stacking apparatus
IPC: B65G59/04
Filed: 1973-06-11
Abstract: 1365046 De-stacking articles KOMBINAT UMFORMTECHNIK ERFURT VEB 11 June 1973 [12 June 1972] 27696/73 Heading B8C A de-stacking apparatus comprises a space adapted to receive a stack 14 of plates or bars, a carrier member 2 having a plurality of rows of permanent magnets 5 disposed one above the other mounted therein in a position to face a side of the stack and extending from the topmost to the lowermost plate or bar in the stack, means 3 for moving the carrier member in a horizontal direction into and out of the working space, limit switches 6 and spacers 7 on the carrier member 2 for arresting the carrier member a pre-determined distance from the side of the stack when moved into the space to detach the topmost plate or bar therefrom and suction means 9 for supporting the detached plate Or bar and transporting it from the apparatus. As shown, the stack is moved into the space on a pallet 10 below suction cups 1 and the carrier member is moved towards an adjacent side of the stack by a motor-driven nut and worm devices 8, 11, the motor being controlled by the limit switches 6. In a modification, the carrier member is adjustable obliquely to the direction of pallet feed and in a further arrangement, Fig. 5 (not shown) the magnets are displaceably mounted on the carrier member.
Patent GB-1338372-A (GB)
Title: Multilayer membrane type mass transfer device and process
IPC: A61M1/22
Filed: 1971-06-14
Abstract: 1338372 Semi-permeable membranes BAXTER LABORATORIES INC 14 June 1971 [18 Sept 1970] 27711/71 Addition to 1306556 Heading B1X A flexible semi-permeable membrane of the type disclosed in Specification 1306556 is modified by cutaway portions 82 extending longitudinally of the backing and adjacent the longitudinal edge to facilitate access of fluid between the membrane and the backing.
Patent GB-862538-A (GB)
Title: Method of producing organic cyclic perfluoroethers having 5 or 6-membered rings
IPC: C07D307/18
Filed: 1959-08-13
Abstract: 862,538. Organic cyclic perfluoro ethers. SALINE LUDWIGSHALLE A.G. Aug. 13, 1959 [Aug. 21, 1958], No. 27753/59. Class 41. Organic cyclic per-fluoro ethers of 5- or 6- membered rings are made by electrolysis of an aliphatic carboxylic acid halide mixed with anhydrous H.F. e.g. butyryl or capronyl chloride. The electrolysis is effected at low temperatures and the products condensed fractionally to remove HF, and isolate the products. In examples, butyryl chloride and a little sodium fluoride is dissolved in anhydrous HF and submitted to electrolysis at - 20‹ C. at 5.5 to 6 V., further butyryl chloride being added as the reaction proceeds. The products are condensed at - 70 ‹ C. and surplus HF returned to the cell. About 31% of the acid chloride is converted to perfluorotetrahydrofurane. The production of perfluorostitia hydro pyranes from branched chain acid chlorides is also referred to.
Patent GB-631168-A (GB)
Title: Improvements in concentricity measuring apparatus employing x-rays
IPC: G01B15/00
Filed: 1945-10-22
Abstract: 631,168. Rontgen ray apparatus. STANDARD ELECTRONIC RESEARCH CORPORATION. Oct. 22, 1945, No. 27798. Convention date, Oct. 16, 1944. [Class 98 (i)] [Also in Groups XXXVI and XL(b)] X-rays are used in -conjunction with detectors producing an electric signal dependent on X-ray intensity, such as photoelectric cells, for testing the eccentricity of a cable core. The beam of X-rays from the tube 18, Figs. 2 and 3, shines through slots 36, 37 formed by two blocks 33, 34 which are initially adjusted so that with a perfect cable substantially equal radiation reaches photo-cells 52, 53, the signal from each of which is amplified and controls an electrical indicator. Any eccentricity causes an increase in one reading and a decrease in the other. The slit sizes may be adjustable. The apparatus may be duplicated to make the test from a different direction or may be capable of adjustment round the cable' for the same purpose, Figs. 6 and 7 (not shown).
Patent GB-982696-A (GB)
Title: Improvements in and relating to building blocks used for building walls and other structures
IPC: B28B23/00
Filed: 1961-08-01
Abstract: 982,696. Building slabs; cavity walls. W. A. SMITH. June 7, 1962 [Aug. 1, 1961; Dec. 29, 1961], Nos. 27816/61 and 46577/61. Headings E1B and E1V. A slab for building a cavity wall is formed on a back face 14 with a continuous edge groove 15, open ended grooves 16, 17 and between these grooves with various embedded anchor members 18 and optionally with further members 30. The slab is of cement, breeze, reconstructed stone, compressed fibres, or clay, with a marble or mosaic facing and the groove 15 is half the width of that of the grooves 16, 17. Apertures in the slab provide ventilation in a cavity wall. In a hollow wall the slabs are joined together across the width of the wall and also in each leaf by bars and reinforcing rods fitted in the anchor members 18 and members 30. Shuttering is inserted in opposed grooves and a concrete framework of horizontal and vertical beams cast into the wall. Specification 982,697 is referred to.
Patent GB-457533-A (GB)
Title: Improvements in non-skid tread devices for vehicle wheels
IPC: B60C11/18
Filed: 1935-05-28
Abstract: 457,533. Wheel tyres. GRAY, B. P., 14, Suffolk Street, Birmingham. May 28, 1935, No. 27838/36. Divided out of 457,464. [Class 144 (ii)] Non-skid plates 10 formed of metal, hard wood, vulcanite, &c., each comprising one or more ribs, flanges, or other projections such as 11, are embedded in the tread portion of a tyre, or in a separately-applied tread band. The road-engaging edges 12 of the flanges &c. are of convex form and of greater curvature than the adjacent portions of the tyre tread 13, as shown in Fig. 2. Perforations 16 may be provided in the plates to assist adhesion with the rubber of the tyre &c. Fig. 7 shows a modification in which the plates are embedded in a tyre-gaiter fitted with attachment-straps 17. Specifications 443,427 and 457,464 are referred to.
Patent GB-252618-A (GB)
Title: Screw thread cutting tool
IPC: B23G5/00
Filed: 1925-11-05
Abstract: 252,618. Baumann, E., and Strasmann, A. Nov. 5,1925. Screwing-dies; ta;ps.-In screw-cutting tools of the kind having longitudinal series of teeth provided with lateral and transverse cutting-edges, the edges of the teeth in relatively adjacent series being oppositely located, the lateral edges conform in shape to the flanks of the thread to be cut and the transverse edges form an acute angle with the axis of the tool. As applied to taps, the teeth which perform the preliminary cutting of the thread are formed with oblique transverse cutting-edges 1a, Fig. 1, the direction of obliquity being opposite in succeeding teeth. The opposite lateral edges may be removed alternately in succeeding teeth as at 3. so that each tooth removes a rough cutting a, Fig. 5, and also a fine cutting b. Alternatively, one cutting-edge may coincide with the flank of the thread itself as in Fig. 15. In the case of taps the lowest points 33 of the cutting-edges lie within the core diameter of the thread and in cutters for external threads they lie outside the largest diameter of the thread so as to true the work to the correct size for the shaping-cutters. For cutting square or trapezoidal threads the taps are constructed as shown in Figs. 7 and 11 respectively, the lateral edges 37, 38 being left full and removed slightly in alternate series of teeth so as to produce rough and fine cutting as shown in Figs. 10 and 14. The cuttings 28, 28<1>, Fig. 10, are produced by each of the teeth 34, Fig. 7, while the cuttings 27, 27<1> are produced by each of the teeth in the succeeding series. Similarly, the teeth 40, Fig. 11, produce cuttings 30, 30<1>, Fig. 14, while the teeth in the succeeding series produce cuttings 29, 29'. In a modification the lateral cutting-edges are not removed in alternate teeth.
Patent GB-403440-A (GB)
Title: Improvements in or relating to speed governors
IPC: G05D13/00
Filed: 1931-10-09
Abstract: 403,440. Speed governors. HANDY GOVERNOR CORPORATION, 3925, West Fort Street, Detroit, Michigan, U.S.A. Oct. 9, 1931, No. 28104. Convention date, April 20. [Class 57.] A regulating device for internal-combustion engines comprises a centrifugal governor 21 driven by the engine and actuating the throttle valve 12. The governor is loaded by a spring 33 engaging an abutment 35 sliding within a sleeve 32 formed in the governor casing. The spring loading is adjusted by an arm 36 engaging the abutment and actuated by a lever 45. Upon reaching idling speeds the abutment 35 engages a stop 50 and further movement of the lever 45 causes engagement of levers 52, 53 to positively actuate through lever 16 &c. the throttle 12 towards closing position.
Patent GB-1396727-A (GB)
Title: Rotary mowers
IPC: A01D34/63
Filed: 1972-06-15
Abstract: 1396727 Mowers S J BARNES 15 June 1972 [15 June 1971] 28144/72 Heading A1F A belt driven rotary mower comprises a single blade carrying rotor 1 having four diametrically opposed replaceable cutting blades 8 which is rotatably mounted on a bar 12 by way of a depending vertical spindle 9 and a main frame 25 to which the bar 12 is pivoted at 18 so as to swing between a side mounted operative position in which it is held by a shear pin 18 and a trailing inoperative position (shown in pecked outline). The mower is supported by a central skid 10 on the bottom of the spindle 9 about which the rotor rotates, an outer skid 14, and an inner skid 19, the skids 14 and 19 being vertically adjustable. The mower is driven off a tractor's p.t.o. by a belt and pulley transmission.
Patent GB-229984-A (GB)
Title: Improvements in and relating to spring seats and the like
IPC: A47C7/34
Filed: 1924-11-25
Abstract: 229,984. Lane, J. C. Nov. 25, 1924. Drawings to Specification. Helical springs. - A helical upholstery spring of cylindrical or conical shape for seats, chair backs, and cushions, is made of taper gauge material in order that the upper-coils may be more flexible than the lower ones.