baber/WOPTO huggingface dataset:
Patent GB-1493716-A (GB)
Title: Rotary shear
IPC: B26D1/24
Filed: 1975-09-04
Abstract: 1493716 Rotary hand shears F J FUCHS JNR 4 Sept 1975 [11 Nov 1974] 36473/75 Heading B4B A rotary shear 1 for cutting sheet material, e.g. cloth, comprises a cutting head 11 mounted on a handle 2 in which a motor 3 is housed, a pair of first and second shear wheels 12, 13 rotatably mounted in the head, the first shear wheel being rotated by the motor via a shaft 6 and gear means 8, 25. The shear wheels 12, 13 are rotatably mounted in a frame 14 via ball bearings 22, Fig. 2, the frame being secured to the handle 2. In order to assist in feeding the material between the wheels, the wheel 12 may be provided with teeth (36), Fig. 6 (not shown), on its periphery; alternatively a spring-loaded ring (40), Figs. 8 and 9 (not shown), may be secured to the wheel 13, and arranged to urge the material against the periphery of the wheel 12. In modifications, the wheel 13 may be of smaller diameter than the wheel 12, Fig. 5 (not shown), or the wheel 13 may be mounted at right-angles to the wheel 12, Fig. 4 (not shown). The motor 3 may be mains or battery energized; the battery may be rechargeable.
Patent GB-950219-A (GB)
Title: Polymerisation catalyst and process of polymerisation using said catalyst
Inventor: GOBLE ANTHONY GEORGE
IPC: C08F10/00
Filed: 1961-10-11
Abstract: Mixtures of titania and alumina are made by adding water to a mixture of an alkyl titanate and an aluminium alkoxide whereby coprecipitation of the oxides takes place.  The hydrated oxides may subsequently be calcined at elevated temperature and then halogenated with a halogenated organic compound at a temperature in the range of 200-1100 DEG F. Suitable halogenating compounds are methylene dichloride, chloroform, carbon tetrachloride, methylene difluoride, fluoroform, and carbon tetrafluoride.  In examples, mixtures of titania/ alumina hydrates are precipitated from a benzene solution of n-butyl titanate and aluminium propoxide by the addition of water, calcined at 500 DEG C., and chlorinated by treatment with carbon tetrachloride.  The preparation of titania alone is also described in an example by adding water to a benzene solution of tetra-n-butyl titanate and calcining the precipitate at 400 DEG C. for one hour.ALSO:A polymerization catalyst comprises a mixture of (a) a Ziegler-type co-catalyst and (b) a product obtained by contacting at elevated temperature a halogenated organic compound with (I) an oxide of a metal of Group IV(a), V(a), or VI(a) of the Mendel<\>aeeff Periodic Table, or alumina, or (II) a mixture of two or more compounds of (I), or (III) a compound obtained or obtainable by the reaction of two or more compounds of (I). The catalyst is used to polymerize mono-, di-, and polyolefins, and acetylenes.  Preferred compounds are ethylene, propylene, butene-1, 4-methylpentene-1, butadiene, styrene, and isoprene. Polymerization may be effected batchwise or continuously for example by employing fixed bed, moving bed, or suspended catalyst techniques. The polymerization is generally carried out in an inert solvent or diluent.  The Ziegler-type co-catalyst is usually selected from metals, alloys, hydrides, and organo-metallic compounds of Groups I, II, and III, of the Periodic Table. The preferred co-catalyst is an organo-metallic aluminium compound. The oxides of the metals apart from alumina, may be selected from Ti, Zr, Hf, Th, V, Nb, Ta, Cr, Mo, W, and U. The preferred oxide is titania.  The halogenated organic compound may be methylene dichloride, chloroform, carbon tetrachloride, methylene difluoride, fluoroform, or carbon tetrafluoride.
Patent GB-1428724-A (GB)
Title: Warp knitting machines particularly stitch-bonding machines
IPC: D04B23/10
Filed: 1973-08-01
Abstract: 1428724 Stitch-knitting machine WIRKMASCHINENBAU KARL - MARX - STADT VEB 1 Aug 1973 [3 Aug 1972] 36488/73 Heading D1C In a stitch-knitting machine the counterholding camb consists of pins 8 or plates (11 Figs. 2, 3 not shown) having downwardly pointing projections 9 which engage the laps of warp threads. The camb may be equipped with tubular openings (15) for guiding longitudinal threads or pile cutting wires.
Patent GB-897849-A (GB)
Title: Non-hygroscopic crystalline thiobarbiturate salts
Inventor: HARTOP WILLIAM L
Filed: 1959-10-28
Abstract: The amorphous sodium salts of 5-ethyl-5-(1 - methylbutyl) - 2 - thiobarbituric, 5 - allyl - 5 - (1-methylbutyl)-2-thiobarbituric and 5-(D 2-cyclohexenyl)-5-allyl-2-thiobarbituric acids are converted into stable, white, non-hygroscopic, crystalline salts by contacting them with alkyl ethers, alkyl esters of alkanoic acids or alkyl ketones in the vapour phase until the salt in the solid phase is uniformly white in appearance.  In an example the first named sodium salt is placed in a vibrating vessel and methyl ethyl ketone vapour is passed through for six hours, when the solid is removed and dried.
Patent GB-1057222-A (GB)
Title: Improved method and apparatus for heating glass
IPC: C03B29/08
Filed: 1963-09-19
Abstract: <PICT:1057222/C1/1> Glass elements are heated prior to thermal treatment, e.g. tempering, by subjecting them to the action of a hot gas and to radiant heat which passes through the glass and heats the interior parts to a temperature at least equal to that of the surfaces. The glass elements 7 are conveyed through a closed chamber 1, between radiant elements 9 heated by gas or electricity, and through which a hot gas is circulated. The chamber is preferably divided by partitions 21 into compartments and the heating elements 9 and the nozzles 27 for the hot gas are arranged in alternate compartments.
Patent GB-522853-A (GB)
Title: Improvements in shock absorbing devices
IPC: F16F1/40
Filed: 1938-12-20
Abstract: 522,853. Resilient supports. METALASTIK, Ltd., and GOLDSCHMIDT, M. Dec. 20, 1938, No. 36985. [Class 108 (iii)] A number of annular plates 1, 2 ... each having a pair of parallel grooves 3, 4 are disposed alternatively to plates 5, 6 ... having similar grooves, the space between the plates being filled with rubber 7 which overlaps the outer edges 8 of the plates 5, 6 ... and the inner edges of the plates 1, 2 .... In use, the frame of an aircraft engine may be connected to the outer group of plates, and the engine to the inner group. Torsional stress due to propeller or torque reaction is taken as a shear stress on the rubber, while thrust due to propeller load is taken as a compression stress. Specification 497,790 is referred to.
Patent GB-1267326-A (GB)
Title: Apparatus for welding side seams of can bodies
IPC: B23K11/06
Filed: 1970-07-30
Abstract: 1,267,326. Welding by pressure. CONTINENTAL CAN CO. Inc. 30 July, 1970 [11 Aug., 1969], No. 36992/70. Heading B3R. In order to distribute the wear on an electrode wheel 8 in a can body welding process successive can bodies 2 are presented to the electrode wheel with the overlapped seam portions 4 in a plurality of predetermined slightly different positions. The can bodies are formed on a horn or mandrel 3 and located by an indexing mechanism 6 which operates synchronously with the can forming mechanism and has a pusher element 7 which engages the edge of the outer lapped layer of each seam to locate the seam as desired. The pusher element 7 is mounted on a member 12 connected by two links 16,126 to cranks 17,26 and 22,27 which are geared to rotate at different speeds (in whole number relationship) thereby giving to the pusher element a plurality of slightly different forward positions.
Patent GB-343216-A (GB)
Title: Improvements in or relating to saw-sharpening machines
IPC: B23D63/14
Filed: 1929-12-04
Abstract: 343,216. Sharpening saws. MODERN WOOD WORKING MACHINES, Ltd., Crown Works, Newfoundpool, Leicester, and EVANS, B., Arthog, Glenhill, Blaby, near Leicester. Dec. 4, 1929, No. 37136. [Class 60.] In a machine for sharpening saws by means of a grinding-wheel 1, the saw 4 is mounted on a pin in such manner that it can be moved parallel to itself to enable a bevel to be ground on the tops of the teeth, set with its plane other than at right - angles to the plane of the wheel 1 to enable the front or back of the teeth to be bevelled, and set with its plane inclined to the vertical. The pin 5 is carried by an arm 13 adjustable angularly on a block 14, which is adjustable on a slide 15, and on the pin is slidable a clamping member 11 having a screwed shank 11a carrying a nut 12 whereby a member 10 is pressed to clamp the saw. The slide 15 carries an adjustable abutment 6a, which, together with a spring-pressed finger 19, supports the saw adjacent the grinding-wheel, and in order to bevel the front or back of a tooth, the slide 15 is adjusted angularly about pivots 21, 22 and locked in position by a wing-nut 26. In order to bevel the tops of the teeth the support 11 is slid on the pin 5 to bring the saw to the positions shown in dotted lines. The pin 5 may be pivotally connected to the arm 13 about a horizontal axis so that the saw can be inclined to a-vertical plane. Band and other saws also may be sharpened in the machine. Reference has been directed by the Comptroller to Specifications 9506/94 and 15374/94, [both in Class 83, Metals, Cutting &c.].
Patent GB-1127036-A (GB)
Title: Watering system for plants or seeds
IPC: A01G27/00
Filed: 1966-08-19
Abstract: 1,127,036. Watering plants or seeds. G. C. DAVEY. 10 Aug., 1967 [19 Aug., 1966], No. 37185/66. Heading A1E. A watering system for plants or seeds comprises a box 1 pivotal about a pivot 2 and an arm 5 carrying a cup 6 to which a plastics pipe 8 is connected, the box, when it is dry, being held in the position shown in the Figure by the weight of plant pot 4c and balance weight 3. In this position water can flow from the plastics bottle 9 via the cup 6 into the box 1. When the box is wet the extra weight of water in the box will cause the box to pivot so that end 1a is raised and cup 6 closes the mouth of the bottle 9 so that no more water flows. A spring may be used instead of the balance weight.
Patent GB-932560-A (GB)
Title: Improvements in or relating to electrical power maximum demand metering load controlequipment
Inventor: DOWNS HERBERT
IPC: G01R11/60
Filed: 1959-11-04
Abstract: 932,560. Automatic control of power. H. DOWNS. Feb. 3, 1961 [Nov. 4, 1959], No. 37345/59. Class 38 (4). In an apparatus for controlling a load consuming electric power there is included a timing device and a measuring device having a member arranged to be actuated at any instant of a predetermined period in proportion to the difference between the actual power consumed by the load and the power consumed by an assumed predetermined uniform load, the member being adapted to co-operate with a member of the timing device for the purpose of controlling a predetermined portion of the load. A means is provided for returning the cooperating members to the starting position thereof between the commencement of each period. The power consumed by a load is indicated on instrument A, while the power consumed uniformly by an assumed load and representing the maximum rate allowable is indicated at B. The two pointers are coupled through a differential gear C to a shaft H loaded with springs J1 and J2 to operate a pointer K, which will be deflected according as to whether A is exceeding or not the maximum allowable rate given by B. A timing device T drives an arm O towards the pointer K moving in unison with contact K 1 , and is arranged just to make contact with K 1  at the end of a timing period if this has remained at its neutral position, but to contact it before the end of a period if the power consumed by the load has been such as to move the contact K 1  in an unfavourable direction. The meeting of the two contacts is arranged to cause the shedding of part of the load, and the time at which this occurs is arranged to be sufficient so that the total demand over the timing period does not exceed the maximum allowable. Drive interrupting devices G and N are included to allow the system to be reset after each timing period, all such interrupting devices being actuated simultaneously from a common signal source (not shown). An alternative embodiment is described (Fig. 2, not shown) wherein two load shedding stages are included, the second coming into operation only if the first does not clear the excess condition. Synchronous motors are used to drive devices B and T so that changes in the frequency of the power supplies do not affect the operation of the system.
Patent GB-1073927-A (GB)
Title: An electrical immersion heater
IPC: H05B3/00
Filed: 1964-09-14
Abstract: 1,073,927. Heating liquids by current therethrough. R. R. BLEASDALE. Sept. 14,1964 [Oct. 30, 1963], No. 37415/64. Heading H5H. An electrical immersion heater for liquids heated by the passage of current therethrough comprises a pair of electrodes a, b each having a plurality of prongs whose number and spacing may be varied to adjust the power dissipated. Two or more such pairs of electrodes may be provided, each arranged to give a predetermined power dissipation with a different voltage applied thereto.
Patent GB-913501-A (GB)
Title: Improvements in lined plastic type bayonet fittings for electric lamps
IPC: H01R33/46
Filed: 1960-11-01
Abstract: 913,501. Lamp holders. LITEMASTER PRODUCTS (PROPRIETARY) Ltd. Nov. 1, 1960 [Dec. 1, 1959], No. 37533/60. Class 38 (1). In a bayonet slot, synthetic resin, lampholder, of the type having a metal lining 10, within the lamp socket, provided with bonding perforations 11, additional bonding of the tongue-like portions 15 of the synthetic resin casing is provided by elongated perforations 16, as shown, or L-shaped perforations (Fig. 4, not shown), in the metal lining. The liner is cut from flat strip (Fig. 2, not shown) and held in cylindrical shape by slots at one end and co-operating lugs at the other end.
Patent GB-369595-A (GB)
Title: Improvements in or relating to speed of revolution indicators
IPC: G01P3/18
Filed: 1930-12-12
Abstract: 369,595. Friction clutches. BROWN, S. G., Western Avenue, North Acton, London. Dec. 12, 1930, No. 37590. [Class 80 (ii).] A friction clutch for clutching the shaft 2 to the shaft 38 at a predetermined speed comprises two flyweights 32, 33 pivoted at 35 and 36 respectively on the disc 37 mounted on the shaft 38 and connected by the spring 34. Extensions of the flyweights have a pin-and-slot connection with each other and the weight 32 is formed with a cylinder 39 which, on the attainment of a predetermined speed by the shaft 38, forces through the shoulder 42 a curved-ended plunger 40 into driving frictional contact with a cylinder 41 fast on the shaft 2 to cause at the same time an electric circuit to be made.
Patent GB-302698-A (GB)
IPC: B27K3/36
Filed: 1928-12-20
Abstract: 302,698. I. G. Farbenindustrie Akt.- Ges. Dec. 20, 1927, [Convention date]. Waterproofing; proofing against bacteria; proofing-compositions; wood, treating with liquids.- Wood is preserved and rendered waterproof by impregnating it with higher fatty acid esters, ether-esters or mixed esters of carbohydrates. In an example, the wood is freed from air and impregnated under pressure with a solution of 10 parts by weight of cellulose trilaurate in 100 parts of methylene chloride, chloroform or benzene. In a second example, a starch laurate having a melting point above 100‹ C. is forced under pressure into the wood in a molten condition. An insoluble trilaurate may be applied in the same manner. Other substances, such as dyes and antiseptics, may be added. The esters of the first two examples are prepared according to Specifications 201,510 and 208,685 respectively and the insoluble trilaurate is obtained by the first stage of the process set out in Specification 297,766 by using a large excess of lauric acid chloride.'
Patent GB-1024152-A (GB)
Title: Improvements in or relating to artificial plants
IPC: A41G1/00
Filed: 1961-10-05
Abstract: 1,024,152. Artificial flowers &c. D. TONG. Oct. 5, 1962 [Oct. 5, 1961], No. 37827/62. Divided out of 1,024,151. Heading A4X. A moulded plastic aritficial flower or planthas a stem 2 formed with studs 4 having enlarged outer ends and leaf units 6 or berry units provided with socket 8, 10 to engage the studs. In a modification the stem has resilient spines to engage the sockets.
Patent GB-1501852-A (GB)
Title: Differential pressure piston combustion chamber system for the production of propellant gases
IPC: F41A1/04
Filed: 1969-07-28
Abstract: 1501852 Gun with hypergolic propellants MESSERSCHMITT-BOLKOW GmbH 28 July 1969 [21 Aug 1968] 37856/69 Heading F3C A differential pressure piston combustion chamber system for the production of propellant gases from fluid media, particularly hypergolic propellant components, and especially for firearms, is characteized in that a partquantity of each of the propellant components is pre-injected during the final phase of the forward movement of the piston, and also in that a further part-quantity may be injected during the initial phase of the return movement (or working stroke) of the piston. As shown, a differential pressure piston 2, which includes a piston head 3, an internal part 4 with guide tube 5, and an external part 6 with annular part 7, slides in a combustion chamber housing 1 to which a firearm barrel is attached. Two storage containers 8, 9 for the liquid fuel and oxidizer, are connected via external ducts 10, 11 and internal ducts 12, 13 with annular feed chambers 14, 15. The piston head 3 contains injection channels 16, 17 controlled by non-return valves and inclined obliquely in respect of each other in order that the jets from each may impinge on one another. The preliminary injection of fuel and oxidizer is effected through orifices 19, 20 interconnected by annular conduits 21, 22 respectively which are supplied from the containers 8, 9 via conduits 23a, 24a and feed bores 23, 24. These are controlled by push rods 25, 26 which are held in their initial position by springs, and which are provided with control slits 25a, 26a which do not coincide with the feed bores 23, 24 when the push rods 25, 26 are in the idle position. During the final phase, x, of the forward movement, X, of the piston 2, the feed bores 23, 24 are opened by the control slits 25a, 26a so that certain part-quantities of the propellant components are injected into the combustion chamber and the piston 2 is subjected at the commencement of the working stroke to a certain pressure which immediately imparts to it a greater initial acceleration. As a result, the initial injection quantity from the injection channels 16, 17 is likewise increased. In addition, during the initial phase, y, of the working stroke, Y, an additional quantity of propellant is injected from the orifices 19, 20 since in this phase the control slits 25a, 26a remain in front of the feed bores 23, 24, as a result of which the initial pressure undergoes a further increase. As the working stroke continues, propellant is injected through the channels 16, 17 by the action of the piston 2 on the annular feed chambers 14, 15. The pressure gases occurring as a result of the combustion drive outwards a projectile 30 introduced into the barrel by a loading device.
Patent GB-328196-A (GB)
Title: Improvements in the cooling of fatty substances in liquid condition
IPC: A23D9/02
Filed: 1928-12-22
Abstract: 328,196. Naumann, H. G. R. Nov. 6, 1&28, [Convention date]. Rollers or cylinders, hollow. - A rotary cooling drum in which a refrigerant evaporates comprises outer and inner walls 4, 1 cast in one piece with longitudinal ribs 2 arranged to provide a series of groups of passages for the refriaerant from one end of the annular space to the other. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction in which the ribs leave gaps at alternate ends to provide passages in a continuous series. This subject-matter does not appear in the Specification as accepted.
Patent GB-877629-A (GB)
Title: Improvements in or relating to photographic shutters
IPC: G03B9/64
Filed: 1959-11-09
Abstract: 877,629. Photographic shutters. DECKEL, H., and DECKEL, F. W. Nov. 9, 1959 [Nov. 25, 1958], No. 37971/59. Class 98(1) A delay gear mechanism for a photographic camera shutter for adjustably retarding, after the blades have been opened, the motion of the principal actuating element which opens and closes the shutter blades is characterised in that the delay gear train includes a flywheel which automatically increases its effective inertial mass by entraining at least one additional mass after turning through a predetermined angle. As shown, the shutter comprises a principal actuating element 26 which, when released from the tensioned position, runs down in the direction of arrow 30, engages by means of a projection 28 with a pin 32 on a shutter blade control ring 20 for opening of the shutter blades 16, and later engages by means of a projection 34 with a pin 36, also on the ring 20, for closing of said blades. Between the actions of opening and closing the blades, a projection 38 of element 26 is delayed by coming against an abutment 40 of a pivoted lever 42 which bears a toothed portion 46 and is coupled by way of pinions 48, 50, and 54 to the flywheel 56, which is rotatably mounted on a spindle 60. A second flywheel 64, is freely rotatable about the spindle 60, and has a pin 66 engaging in a slot 62 in flywheel 56. This pin is normally urged by weak spring 68 into the end position shown in Fig. 1, but when flywheel 56 begins to rotate and has turned through a predetermined angle, the far end of slot 62 comes against pin 66 and the second flywheel is thereby also entrained. Lever 42 has a pin 78 thereon engaging with a cam surface 80 of a shutter speed setting ring 82 for adjusting the point of engagement of projection 38 with the abutment 40, and thereby for adjusting the delay provided by the mechanism. The pinion 54 is engaged by a gear wheel 70 which is in turn engaged by a spring 74 for urging the delay gear mechanism into its rest position.
Patent GB-898664-A (GB)
Title: Cold tube bending and sizing with or without shouldering
IPC: B21D9/12
Filed: 1960-11-04
Abstract: 898,664. Bending tubes; flexible mandrels. ARMSTRONG, D. E., DUNN, T. J. J., STULEN, W. H., and ROESER, G, P. Nov. 4, 1960 [Nov. 12, 1959; May 13, 1960], No. 38015/60. Class 83 (4). A tube is bent by being pushed through a die whilst supported internally by a multiple part resilient mandrel, the mandrel being subject to a counter pressure causing it to expand and grip the internal surface of the tube. A tube 18 to be bent is pushed by a ram 19 bearing against the end of the tube, through a die 16 while supported internally by an elastomeric mandrel 14. The mandrel 14 is pressed at the same time by a counterthrust ram 23, acting through an articulated assembly 31, to cause hardened mandrel end sections 22a, 22b to expand and grip the tube. Instead of abutting the end of the tube, the ram 19 may push the tube through the medium of the end mandrel section 22a which grips the inner surface of the tube. Lubricants include a sulphur modified hydrocarbon grease, chlorinated rubber solid film lubricant, chlorinated paraffin containing 40-50% chlorine and carnauba wax emulsion lubricant. The tube 18 is formed with a front bevel 4 and a flat spot 2, Fig. 13. The mandrel 14 may comprise end sections 22a, 22b of vinyl chloride plastisol, a middle section 22<SP>11</SP> of soft elastic polysulphide rubber and intermediate sections 22<SP>1</SP> of natural rubber. The middle section may be of soft natural rubber or synthetic compounded rubber and the end sections could be of vinyl resin plastisol, urethane rubber, cast epoxy resin or hard natural or synthetic rubber.
Patent GB-1371516-A (GB)
Title: Mechanical handling of goods
IPC: B65D19/00
Filed: 1972-07-26
Abstract: 1371516 Load handling pallets BAMBERGERS PALLETS & CASES Ltd 26 July 1972 [13 Aug 1971] 38120/71 Addition to 1360594 Heading B8H The subject matter of this Specification is the same as that described in Specification 1,360,594 except that the flexible envelope is made wholly or partially of paper.