baber/WOPTO huggingface dataset:
Patent GB-1468577-A (GB)
Title: Extrusion process for thermoplastics
IPC: B29C48/30
Filed: 1974-04-24
Abstract: 1468577 Extruding channelled ceramic W R GRACE & CO 24 April 1974 [25 April 1973] 17957/74 Heading B5A Collapse of the bore or bores or an extruding tube of material, comprising a sinterable ceramic powder and a thermoplastics binder, is prevented by a pressure within the bore or bores provided by a gas evolved at the extrusion temperature from a blowing agent incorporated in the material. After removal of the thermoplastics by burning, the ceramic is sintered to a porous structure which can be used as a support for a catalyst, for the exhaust gases of an internal combustion engine. The material preferably comprises, by volume, 5-70, and preferably 5-50% of polyolefin; 5 to 80, and preferably 20-60% of a preferably water soluble plasticizer; 45 to 80% of cordierite or other ceramic powder; and 0À05 to 2, and preferably 0À1 to 0À5% of the blowing agent. The ceramic may also comprise alumina, mullite, or alumina spinel. The gas may be evolved from pentane, hexane, heptane, low boiling hydrocarbon oils, chlorinated hydrocarbons, azobisformamide, or a volatile component of a plasticizer oil or of the polyolefin. In the examples; (1) and (2), a material comprising linear polyethylene, cordierite, and mineral oil containing volatiles, was mixed at 15 C. and then extruded at 350 F. in the Fig. 2 configuration and cut into  inch long pellets which were immersed in trichlorethylene to remove the plasticizer, followed by drying, burning off of the polyethylene, and heating at 1400 C. to sinter the cordierite; (4), low density polyethylene containing azobisformamide was extruded in the Fig. 4 configuration.
Patent GB-1002445-A (GB)
Title: Improved emulsifier
IPC: C07C69/704
Filed: 1961-08-22
Abstract: An emulsifier, namely stearoyl lactic acid, is prepared by reacting substantially equimolar amounts of sodium lactate and stearoyl chloride at a temperature between 130 DEG  and 136 DEG  C.
Patent GB-257385-A (GB)
Title: Improvements in nailing machines
IPC: B27F7/13
Filed: 1925-07-14
Abstract: 257,385. Lamb, A. July 14, 1925. Loose-nailing.-A loose-nailing machine of the kind in which an oscillating hopper supplies nails singly to nail chucks whence they are driven by drivers mounted on a reciprocating bar, is operated bv a foot-lever, the hopper being oscillated from the foot-lever through the intermediary of ratchet mechanism, the latter operating preferably at both the up and down strokes of the lever. As shown, the treadle 3 is directly connected by rods 4 to a bar 5 carrying the drivers. The hopper 14, which supplies nails by slideways 31, a separating device which may be of the kind described in Specification 257,555, and tubes 33 to the nail chucks, is pivoted at 18 and connected by rods 16, weighted at 30, to a crank 19 on a spindle 20. Mounted on the spindle are two sprocket wheels 22 both adapted to drive the spindle in one direction by ratchet means. Driving chains 24, 25 passing over the sprocket wheels are connected to the treadle through springs 26, 27. One chain is crossed and the other open, so that the spindle 20 is driven at both the up and down strokes of the treadle. The spindle can also be rotated by a handle 29. The treadle is normally raised by a spring 68 to an extent limited by a slotted link 65. A U-shaped wire 70 arranged beneath the hopper prevents nails already in the front of the slots in the hopper from sliding back when the hopper is tilted rearwardly.
Patent GB-751904-A (GB)
Title: Improvements in or relating to forcing liquids for spraying apparatus by gaseous pressure
IPC: B05B9/08
Filed: 1954-06-18
Abstract: 751,904. Forcing liquids by gaseous pressure; storing gases under pressure. BIRO, G. DIONJune 18, 1954 [June 23, 1953], No. 18000/54. Classes 8(2) and 102(2). Apparatus for spraying liquids by gaseous pressure comprises a tank 1, for the liquid, mounted on a carriage C and fitted with a cylinder 5 containing sufficient gas under pressure to supply pipe 7 and tee-piece 8, when the cock 6 is opened, to raise the pressure in the tank 1 to the operating level. A second cylinder, or set of cylinders 11, are connected to the tank 1 through a reducing valve 13 and pipe 14 and are brought into operation to maintain the pressure in the tank. The cylinder 11 is fitted with an opening device, e.g., a cutter 21 for rupturing a disc 20, which is actuated by a piston 22 communicating through a pipe 15 and a restricted orifice in the tee-piece 8, with the pressure space in the tank 1.
Patent GB-328155-A (GB)
Title: Improvements in or relating to captive tennis and like balls
IPC: A63B43/00
Filed: 1929-06-12
Abstract: 328,155. Henley's Tyre & Rubber Co., Ltd., and Traxler, J. June 12, 1929. Tennis-practising appliances; balls. - A captive tennis ball has an inner airtight shell a, an intermediate shell b reinforced with canvas c, and an outer cover j, eyelets d, e being let into the intermediate shell b to give passage to an anchoring cord g. The inner part of the cord g may pass directly from one eyelet to the other or may surround the inner shell a. In the latter case a single eyelet only may be provided. A patch k is attached to the inner surface of the shell a to prevent leakage near the eyelets. The ball is suspended by the usual elastic ligament h.
Patent GB-489889-A (GB)
Title: Improvements in or relating to heating and ventilating systems
IPC: B64D13/08
Filed: 1937-02-04
Abstract: 489,889. Ventilating. POLLAK, J. E. (Vapor Car Heating Co., Inc.) Feb. 4, 1937, No. 18090. Divided out of 477,495. [Class 137] [Also in Group XXXV] A heating and ventilating system, adapted for use in aeroplanes &c., comprises two conduits 1, 2, each having an exit opening into a common duct or compartment 3 and an exit opening to the outer air, with valves 11, 13 adapted to close alternatively either exit, a heat radiator in one conduit and means such as a relay controlled reversible motor 15 and gears 16, 17 whereby the valves may be simultaneously adjusted to determine the proportion of heated to unheated air entering the duct or compartment. The valves are shown geared together and operated by a reversible electric motor 15. Thermostats 49, 50, 51 in the conduit or a compartment to which it leads may be associated with relays 56, 60 to control this motor. As shown in Fig. 4, a switch 55 may select either of two temperature ranges determined by the settings of the three thermostats. A blower driven by a motor 5 may be arranged to give a continuous flow of air in both conduits, or for aircraft use, scoops may co-operate with the propeller. The heat radiator is continuously supplied with heating fluid for example from a boiler 18 on the exhaust pipe 20 of an internal combustion engine, as described in Specification 477,495.
Patent GB-760855-A (GB)
Title: Automatic adjustment device
Inventor: BUTLER HENRY JAMES
IPC: F16D65/54
Filed: 1954-06-21
Abstract: 760,855. Brake-adjusting mechanism. DUNLOP RUBBER CO., Ltd. June 9, 1955 [June 21, 1954], No. 18091/54. Class 103 (1). [Also in Group XXIV] An automatic adjustment mechanism, particularly for disc brakes, which, as shown in Fig. 1, is applied to a brake for a heavy tank, comprises a two-part member secured between the movable pressure plate 4 and a fixed pin 10 extending from the hydraulic actuator cylinder, the member consisting of a housing 8 within which a rod member 11, 12 is slidable. The housing 8 has formed therein at an acute angle to the axis of rod 12, a passage containing a ball 17 spring- pressed into engagement with a groove 20 in the rod member 11, 12 so that a one-way wedging action is produced which, while allowing the pressure-plate 4 to be freely moved to apply the brake, restricts the return movement so that the clearance is automatically adjusted. The wedging action may be cancelled by pressing inwardly pin 21, Fig. 4, so that an annular recess 23 allows a second ball 18 to move back, thus relaxing the pressure on the spring 19. Alternatively a flat portion may be formed on the pin 21. Fig. 9 shows an arrangement where. in the one-way wedging device is incorporated in the cylinder of a fluid-pressure piston and cylinder actuator device. Specifications 721,323 and 734,856 are referred to.
Patent GB-816971-A (GB)
Title: Improvements in or relating to high speed printers
IPC: B41J1/44
Filed: 1957-06-11
Abstract: 816,971. Selective printing. OLIVETTI & CIE S.p.A., ING. C. June 11, 1957 [June 19. 1956], No. 18432/57. Class 100(4) A high speed printer of the kind using a set of type-wheels 2, each frictionally driven by a continuously running motor, comprises a clock signal generator, control means 5-8 for arresting all the type-wheels in a predetermined mutual position, and timing means for unsetting the control in timed relation to the clock signal generator to enable the type wheels to resume their rotation in synchronism with the clock signals. The clock signal generator comprises a toothed magnetic disc 19 whose teeth co-operate with a magnetic pick-up head 20 and the variable reluctance which occurs induces a voltage which is amplified to produce the signals. These signals are used to operate the control means comprising a solenoid 8, a comb coil 6 and a zeroizing tooth 5 associated with each wheel 2. Also the signals control electronic circuits comprising and-gates, onestep multivibrators, flip-flops, switches, delay units and counters to operate selecting solenoids 11 and a solenoid 18 which upon operation releases a crank 17, and through rod 14, throws a platen 12 leftwards to effect impression.
Patent GB-666349-A (GB)
Title: Improvements in and relating to two-stroke internal-combustion engines
IPC: F02B75/02
Filed: 1949-07-13
Abstract: 666,349. Two-stroke engines. TRIUMPH WERKE NURNBERG AKT.-GES. July 13, 1949 [Jan. 29, 1949], No. 18467/49. Class 7(ii) In a two-stroke internal-combustion engine having two cylinders 10, 11 divided by a partition wall 14 and covered by a common cylinder head 13 in which two pistons 8, 9 acted upon by a common impulse and working in the same direction in phase with each other, are so driven from a common crankshaft 2 that the plane passing through the axes of the two pistons passes also through the crankshaft axis, the pistons being mounted on a common forkshaped connecting rod 5, and the bolt holes 19 of the piston bolts being disposed above the lower edges 20 of the pistons so that over the whole stroke the pistons are guided in the cylinders 10, 11, the wall 14 is provided with slots 15, 16 enabling the forked-shaped end of rod 5 to extend, in the inner dead-centre position of the pistons 8, 9, as far as possible into the cylinders, the slots being positioned so that in the inner dead-centre position they are not uncovered by the upper piston edges. The cylinders are arranged so that their common axis is at right angles to direction of motion of. a vehicle driven by the engine and hence to the flow of cooling air. One of the pistons controls the inlet passage and the other the exhaust port.
Patent GB-436472-A (GB)
Title: Improvements in and connected with the roofing of coal and other mines
IPC: E21D11/28
Filed: 1934-06-22
Abstract: 436,472. Mine supports. HOOKS, J. A., 293, Stenhouse Street, Cowdenbeath, and MITCHELL, A. I., Woodend House, Woodend, Cardenden, both in Fifeshire. June 22, 1934, No. 18470. [Class 20 (ii)] Mine-roof supports comprising arched transverse supports and longitudinals disposed at intervals, have hook-shaped projections B provided on the ends of the L-section longitudinals A to engage with apertures F provided in the webs of the I-section transversals E. The ends of adjacent longitudinals are received in the same apertures in the transversals and lie on opposite sides of the web against the adjoining longitudinal.
Patent GB-1371013-A (GB)
Title: Photoconductive device and method of manufacture
IPC: H01L31/18
Filed: 1973-04-17
Abstract: 1371013 Photoconductors PHOTOPHYSICS Inc 17 April 1973 18577/73 Heading H1K Crystals of a II-VI compound photoconductor such as CdS (Zn, Se and Te are also mentioned) have introduced therein a halogen donor dopant. The crystals are then pulverized and the donor concentration is determined, e.g. by determining the turbidity produced when a solution of AgNO 3  is added to a solution of the crystals in HNO 3 . A measured quantity of an acceptor dopant from the group Ag, Au and Cu sufficient to produce a desired donor/ acceptor ratio in the photoconductor is then added, e.g. by suspension of the pulverized crystals in an aqueous copper sulphate solution. The crystals are then mixed with a glass binder, painted or sprayed on to a tin oxide coated glass substrate and fired for 10-60 minutes at 525-650‹ C., after which a longer ageing treatment at 80‹ C. is carried out. The original donor-doped crystals are preferably obtained by sublimation in the presence of a donor containing vapour such as HC1.
Patent GB-384596-A (GB)
Title: A collapsible ironing table
IPC: D06F81/12
Filed: 1932-07-01
Abstract: 384,596. Ironing-boards. KOHN, E., 3, Selnaustrasse, Zurich, Switzerland. July 1, 1932, No. 18613. [Class 138 (ii).] An ironing-table is supported by legs connected by diagonally-arranged parallel bars which enable the legs to fold up under the board. Fig. 1 shows a narrow ironing-table 1 on a stand 8, 6. At the right-hand end is a sheetmetal iron-holder 2 with a ribbed base 3. The table or board 1 is connected to a pivoted strip 4 at the right-hand end, and rests on crossbars 7 connecting the legs 8 at each end. The legs 8 are pivoted at the ends of two long bars 6 and a third bar or connecting-rod 9, the pivotal points 10, 11 being at the corners of a parallel frame such that the legs 8 move simultaneously as shown by the arrows I. The movements are limited by a slotted bar 12. A sleeve board 16 is pivoted centrally beneath the table 1, and may be swung out at rightangles to it and be supported by a bracket 17.
Patent GB-1441133-A (GB)
Title: Tools for incorporation in well drill strings
IPC: E21B49/08
Filed: 1973-05-29
Abstract: 1441133 Well fluids sampling LYNES INC 29 May 1973 [14 June 1972] 18686/75 Divided out of 1441131 Heading E1F The disclosure corresponds with that of the parent Specification but the claims are directed to a tool with a sample collector seating valve and a control valve used to control inflation and deflection of a packer element on the tool.
Patent GB-404874-A (GB)
Title: An improved washable protective coating for oil tanks
IPC: B08B17/04
Filed: 1933-07-01
Abstract: The interior surfaces of oil tanks are coated with a composition, removable by washing with hot water, comprising waterglass and barium sulphate as principal ingredients.  Equal parts of these two constituents may be used, and small quantities of other substance such as chalk or Kieselguhr may be added.
Patent GB-1142808-A (GB)
Title: Process for preparing a canned food product by the addition thereto of a water soluble alginate
Inventor: MCDERMOTT FRANCIS XAVIER
IPC: A23L29/256
Filed: 1966-03-16
Abstract: 1,142,808. Food preparations. KELCO CO. 16 March, 1966, No. 18824/67. Divided out of 1,142,807. Heading A2B. In the preparation of canned food products of the type including starch and a source of calcium, for example creamed soups, New England clam chowder, corn chowder, chow mein, chop sucy, creamed tuna or chicken, meat and fish stews, cream sauce, meat and poultry gravies, au gratin and cheese based sauces and toppings, bisques, a la king and fricassae products, pudding and cream desserts, dessert sauces and fillings, the temperature of the food product is raised to above 160‹F. and thereafter cooled to below 160‹F., a portion of the starch having been replaced by a water soluble alginate preferably in an amount of 1/40-1% wt. of the total weight of the food product. The alginate may be added together with 10-25 wt. per cent. of a calcium binding salt, such as the sodium and sodium hydrogen salts of orthophosphoric, tetraphosphoric, pyrophosphoric, hexametaphosphoric, tripolyphosphoric, citric, lactic, gluconic and carbonic acids.
Patent GB-587320-A (GB)
Title: Improvements in or relating to powdered metals
IPC: C22C33/02
Filed: 1944-10-03
Abstract: Articles of manufacture are produced by sintering together under pressure a powder mixture comprising 2-8 per cent. nickel, 0.2-1.4 per cent. manganese, 0.08-1.0 per cent. graphite, the remainder being soft iron.  The nickel, manganese and graphite should be sufficiently fine to pass completely through a 300 mesh sieve.  The manganese may be introduced into the mixture in the form of manganese carbonate. Sintering may be carried out by subjecting the mixture to a pressure of at least 35 tons per square inch at a temperature of substantially 1,300 DEG C. for at least one hour.  This operation may be carried out in a reducing atmosphere, for example, one consisting of 75 per cent. hydrogen and 25 per cent. nitrogen.
Patent GB-991454-A (GB)
IPC: B23H3/04
Filed: 1961-05-25
Abstract: <PICT:0991454/C6-C7/1> <PICT:0991454/C6-C7/2> A workpiece is given the shape of a mator by first using the master to electrolytically shape an electrode and then using the shaped electrode to electrolytically shape the workpiece. During the two shaping operations, the electrode and the master (or the workpiece) are moved towards each other and simultaneously moved relatively to each other transversely to the movement towards each other, the transverse movement being identical during both the shaping of the electrode and of the workpiece. The electrode contains a passage through which electrolyte is fed to the work gap and may comprise a bundle of tubes 36, Fig. 2, or be made from alternate flat and corrugated, ribbed or dimpled plates.  The transverse movement during shaping removes irregularities which would otherwise be caused, e.g. by the ends of the tubes or plates.  Fig. 2 shows a master 34 which can be interchanged in its holder 16 for a workpiece.  The electrode 32 is advanced towards the workpiece by a ram 40.  Fig. 1 shows how the electrode 32 is reciprocated horizontally over ways 44 by a motor 50 and the master or workpiece reciprocated vertically over ways 20 by a motor 26.  Variable gearing and adjustment of crank connections allow adjustment of frequency and stroke of the two reciprocations.  Fig. 3 (not shown) illustrates an electrode having copper elements forming rectangular slots for the passage of electrolyte. Claims of Specification 943,101 have been recited.
Patent GB-937336-A (GB)
Title: Improvements in or relating to telescopic stay devices for windows, doors or the like
IPC: E05C17/30
Filed: 1962-05-16
Abstract: 937,336. Telescopic stays. G. E. W. LEWIN. May 16, 1962, No. 18939/62. Class 65 (1). In a telescopic stay comprising an outer tube 1 and a bar 4 slidable in the tube, axially-spaced groups of sector-shaped brake members 18-21, 22-25 are mounted in the tube and conical members 14, 26 are provided to press the sectors against the bar. The member 14 is fitted with a bush 15 to serve as a bearing for the bar and has a screw-threaded portion 16 engaging a corresponding threaded portion of the tube so that the friction can be adjusted. By screwing the member 14 sufficiently tightly the stay can be locked. The end 5 of the bar is flattened and provided with a hole in which a boss on a nut 8 is rotatably but non-releasably engaged. The nut is screwed on a pin 7 extending downwardly from an attachment plate 6, so that the bar can be readily detached from the window or frame to which it is pivoted.
Patent GB-1091070-A (GB)
Title: A machine tool having a safety device
IPC: F16P3/00
Filed: 1966-04-29
Abstract: 1,091,070. Machinery safety devices. ESSO STANDARD SOC. ANON. FRANCAISE. April 29, 1966 [June 29, 1965], No. 19007/66. Heading F2J. In hand-operated shears comprising a frame 1, a guide 2 blade 4 and operating lever 5, an automatic safety device comprises a sector member 11 carrying a counterweight 13 and pivotally mounted at 12 so that in its rest position it bears against the blade 4 and prevents movement thereof. A lever 15 is pivotally mounted at one end 16 and carries at its other end a bearing 17 for a part 18 to be sheared. The lever 15 bears against a bearing 19 on the sector member 11 so that when the part 18 to be sheared is lowered on bearing 17, the lever 15 causes clockwise rotation of the sector member 11, thereby freeing the blade 4. The counterweight 13 causes the sector member 11 to return to its blocking position after the shearing operation.
Patent GB-1199401-A (GB)
Title: Improvements in and relating to Electrical-to-Mechanical Transducers.
Inventor: CHAVE DONALD MAYNARD
IPC: H04R9/02
Filed: 1966-04-29
Abstract: 1,199,401. Loud-speakers. D. M. CHAVE. 27 July, 1967 [29 April, 1966], No. 19025/66. Heading H4J. The coil of a moving-coil loud-speaker, cutter-head or pen recorder is closely-wound from fine-gauge insulated silver wire whereby for a coil of given resistance a greater number of ampere-turns can be obtained than with conventional copper or aluminium wire-wound coils. The silver wire is preferably of rectangular cross-section (i.e. square or tape-like) so as to facilitate heat dispersal. It is pointed out that the greater weight, compared with copper or aluminium, of such a coil leads to greater efficiency since the mass of the coil approaches that of the diaphragm + the air driven by the diaphragm. In order to ensure a linear response characteristic, the axial length of the coil is such as to maintain the coil within the air gap of an associated magnetic circuit during normal vibration of the diaphragm.
Patent GB-1005739-A (GB)
Title: The avoidance of stress damage in animals
IPC: A22B3/00
Filed: 1964-05-08
Abstract: A veterinary composition useful for the minimisation or avoidance of hurt or damage in ruminants and pigs subjected to conditions of stress comprises a compound <FORM:1005739/A5-A6/1> wherein X is a nitro group or a halogen atom, R is an alkyl group containing 1-3 carbon atoms and Y is a trifluoromethyl group or a halogen atom and the broken lines denote bonds to optional substituents, in admixture with a solid or liquid carrier (other than water).  Specified compounds are 7-chloro-5-phenyl-1-methyl-2, 3 dihydro-1H-1, 4-benzodiazepinone-(2), 7-nitro-5-(2-trifluoromethyl-phenyl)-2, 3 dihydro-1H-1, 4-bezodiazepinone-(2), 7-nitro-5-(2-chloro-phenyl)-2, 3 dihydro-1H-1, 4-benzodiazepinone-(2).  The compositions, of the compounds as such, may be administered orally or parenterally.  The carrier may be an animal feedstuff or drinking water.  The invention also comprises the method of administering to said animals the above active compound or composition.