baber/WOPTO huggingface dataset:
Patent GB-807922-A (GB)
Title: Improvements in and relating to the manufacture of suppositories
IPC: A61J3/08
Filed: 1955-07-28
Abstract: 807,922. Moulding suppositories. SCHAEPPI, A. G., D. July 28, 1955 [July 29, 1954], No. 21786/55. Class 87(2). [Also in Group VI] A suppository consisting of a core containing at least one medicament and at least one outer shell is made by casting the outer shell in a mould in which is a mould core, removing the mould core after solidification of the outer shell and filling the upwardly open outer shell with core material. Suppositories are made in a mould formed by three blocks 1, 2, 3, secured together by screw bolts 4 and delivering between them two rows of casting chambers 6. Cylindrical mould cores 7 project into each chamber 6 from a holder 11 which is spaced above the blocks 1, 2, 3 by guiding bolts 12, the middle parts of which have a greater diameter than the end parts. The mould cores 7 have pinions 13 which engage a rack 14 having a rail 17 which is slidable in a groove in the holder 11. Material, which may contain a medicament is poured into the chambers 6, with the mould cores 7 in position, to form the shells of the suppositories. The pinions 13 and mould cores 7 are rotated by sliding the rack 14 to and fro, while the shell material is setting. The mould cores 7 are then removed from the chambers 6 and the recesses so formed are partially filled with material containing another medicament to form the cores of the suppositories. The blocks 1, 2, 3, are then separated from one another for removal of the suppositories and the shell material is pressed over the tops of the cores which thus become completely enclosed. An additional set of mould cores of larger diameter for use in moulding an outer shell may be provided, the smaller diameter cores being used in casting a second outer shell. The larger diameter cores may be hollow and mounted over the smaller diameter cores in use.
Patent GB-149338-A (GB)
Title: Improvements in flexible gearing
IPC: F16H55/16
Filed: 1920-07-20
Abstract: 149,338. Coninck, M. R. de. July 22, 1919, [Convention date]. Toothed wheels and pinions are rendered flexible by forming, as shown, radial slots b opening outwards between the teeth and alternating with radial slots d opening inwards into openings c between radial arms e. A number of such elements may be arranged side by side to form a broad pinion.
Patent GB-359488-A (GB)
Title: Improvements in stop motion devices for power looms
IPC: D03D51/34
Filed: 1930-07-18
Abstract: 359,488. Looms with automatic weft replenishing mechanism. SAKAMOTO, K., 94, Nakayama-cho, Hamamatsu, Japan. July 18, 1930, No. 21805. [Classes 142 (i), 142 (ii), and 142 (iii).] A device, adapted to effect a change in the operation of the loom, under control of the weft fork, comprises three slides 6, 13 14, Fig. 3, adapted to operate the take-up, stopmotion, and weft replenishing mechanisms respectively, the arrangement being such that the loom can be stopped on weft failure or after a predetermined number of ineffective cop changes, whilst the weft replenishing mechanism may also be operated on indication of weft exhaustion by the usual weft-filler mechanism. The three sliding members which are supported on a casing 2 fixed to the frame of the loom, are operated on each movement of the weft fork holder 7, when the fork on the latter is engaged by the weft hammer, the weft fork holder being adjustably secured to the slide 6 and being provided with a removably mounted block 12 for engaging the slide 14. The slides 6, 14 are formed with extensions 6a, 14a, Fig. 1, for engagement with levers 26, 27 associated with the take-up and cop changing mechanism, respectively. The stop motion slide 13, which is mounted on a spindle 22 and is provided with an adjustably mounted screw 20 for engaging a lever 21 associated with the stopping means, is formed with a number of teeth 13b through which it is operated by a pawl 15 on the slide 6. A second pawl 16, pivotally mounted on the casing 2, is provided to retain the slide 13 in retracted position when moved by the slide 6. At each movement of the weft fork holder, consequent upon weft breakage, the weft replenishing mechanism is operated and the cloth take-up is interrupted through the slides 6, 14 respectively, whilst the stop motion slide 13 is moved back one step, successive failures of weft finally causing the latter to stop the loom. If, however, one change proves effective, no movement of the weft fork holder takes place and a bell-crank lever 17, Fig. 4, is moved by the weft hammer whereupon the retaining pawl 16 is raised and the slide 13 is allowed to return to its initial position under the influence of a spring 23. The weft replenishing mechanism may also be operated from the weft feeler mechanism through a lever 19 which, when raised, brings a lever 18, pivoted on the slide 14, into the path of a projection 28 on the weft hammer. In a modification of the device, the retaining pawl 16 rendered inoperative and the screw 20 is arranged to contact with the stopping means 21 on the first stroke of the weft fork holder, the driving paw being held in engagement with the ratchet 13b by an angle bar.
Patent GB-921993-A (GB)
Title: Process for the production of unsaturated monocarboxylic acid esters
IPC: C07C69/54
Filed: 1959-06-25
Abstract: A mixed catalyst comprising an alkaline earth phosphate and one or more compounds of a transition element of Groups I to VIII of the Periodic Table are used for the preparation of alkyl esters of aliphatic unsaturated monocarboxylic acids by the dealcoholization of alkyl esters of a - or b -alkoxy aliphatic monocarboxylic acids at an elevated temperature.  The catalysts are preferably supported, e.g. on silica gel, active carbon, pumice, kaolin and silica earths and a mixture with at least 70% by weight of alkaline earth metal phosphate is preferred.  Oxides or salts of the elements, copper, silver, gold, cerium, zirconium, hafnium, thorium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, uranium, iron, cobalt, nickel, or a metal of the platinum group, or complex salts such as chromates, vanadates, tungstates and molybdenates are referred to and the two components may be mixed, or alternatively an aqueous solution of the alkaline earth metal salt, other than phosphate may be mixed with the other component and the salt reacted with phosphoric acid.  Small amounts of aluminium or boron compounds especially phosphates may also be included in the catalyst.  Examples describe the preparation of catalysts by impregnating silica gel with an aqueous solution of phosphoric acid, magnesium chloride hexahydrate, thorium nitrate tetrahydrate and boric acid or aluminium hexahydrate, followed by drying and heating at 700 DEG C. for 48 hours, and the use of mixtures of calcium phosphate and ammonium chromate; magnesium phosphate and ferric chloride, copper and nickel oxides, and ammonium vanadate and cerium sulphate. Specification 561,153 is referred to.ALSO:Alkyl esters of aliphatic unsaturated monocarboxylic acids are prepared by dealcoholising alkyl esters of an a - or b -alkoxy aliphatic monocarboxylic acid at an elevated temperature in the presence of a mixed catalyst comprising an alkaline earth phosphate and one or more compounds of a transition element of Group I to VIII of the Periodic Table.  The catalysts are preferably supported e.g. on silica gel, active carbon, pumice, kaolin, and silica earths, and the alkaline earth phosphate is preferably at least 70% by weight of the mixed catalyst.  Oxides or salts of the transition elements, e.g. copper, silver, gold, cerium, zirconium, hafnium, thorium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, uranium, iron, cobalt, nickel or a metal of the platinum group, or complex salts such as chromates, vanadates, tungstates, molybdenates and uranates may be used and small amounts of aluminium or boron compounds such as phosphates may also be included.  Continuous or discontinuous, gas or liquid phase reaction at between 250 and 380 DEG C. may be used. Examples describe the preparation of methyl acrylate and methacrylate. Specification 361,153 is referred to.
Patent GB-603176-A (GB)
Title: Improvements in or relating to teat cups
IPC: A01J5/06
Filed: 1945-08-27
Abstract: 603,176. Teat-cups. AKTIEBOLAGET SEPARATOR. Aug. 27, 1945, No. 21960. Convention date, Aug. 30, 1944. [Class 84] An elastic teat cup liner 2 formed at its upper end with a collar 5 and an inturned flange 6 is of conical shape with downwardly decreasing diameter such that when collapsed no contact with the outer shell 1 is made over at least the lower third and not more than the lower half of its effective part.
Patent GB-724747-A (GB)
Title: Improvements in or relating to a projector for sound films
IPC: G11B5/48
Filed: 1953-08-10
Abstract: 724,747. Magnetic recording and reproducing apparatus. PAILLARD SOC. ANON. Aug. 10, 1953 (Oct. 13, 1952], No. 21987/53. Class 40 (2) In a cinematographic sound recording and reproducing apparatus, means are provided for enabling the magnetic heads 18, 19 to engage either surface of the sound film 31. The heads 18, 19 are mounted on a plate 19 and may be oriented thereon to the alternative positions shown in Figs. 4 and 6. The casings of the heads 18, 19 are provided with projections 30 which engage stops 29, the said projections and stops being so arranged that the direction of travel of the film tends to maintain the heads in the position in which they have been set. The plate 9 may be rotated through 90 degrees so that the film is engaged by neither of the heads, as would be desired when a film with an optical sound track is employed. For the purpose of maintaining uniform motion, the shaft of the sound drum 33 is provided with a flywheel, and the intermediate pulley between the said sound drum 33 and the take-up sprocket 35 is resiliently mounted. A spring 36 is also arranged between the feed sprocket 32 and its shaft.
Patent GB-138563-A (GB)
Title: Improvements in vacuum fuel feed devices
IPC: F02M37/02
Filed: 1919-09-06
Abstract: 138,563. Muzzy, W. H. Sept. 6, 1919. Vacuum apparatus.-An inner float chamber 2 under suction has outwardly-opening valves 10, 9 to admit air and liquid fuel respectively, and a delivery pipe 20. The air inlet valve-stem carries a float 12 and a stop 11<a> by means of which a lever 11 acts to raise the valve 10. A cork float 13 carried by the lever 11 hold the valve 9 open until the level of the liquid reaches a certain height, when the valve 9 is closed and the valve 10 opened. The valve 9 is of greater area than the valve 10 and acts further from the fulcrum of the lever 11, so as to ensure the action described. A disk may replace the float 12.
Patent GB-1342682-A (GB)
Title: Warp sizing agent
IPC: D06M15/11
Filed: 1971-04-19
Abstract: 1342682 Amine salts of starch half-esters A E STALEY MFG CO 19 April 1971 [19 Feb 1970] 22038/71 Heading C3U [Also in Division D1] An amine salt of a starch half-ester of maleic citraconic, 4-cyclohexene-1,2-di-carboxylic acid, a phthalic acid or a dicarboxylic acid of formula wherein n is at least 2, the amine used having no Zerewitinoff hydrogen and the amine salt of the starch half-ester having a degree of substitution of 0À005 to 0À1, a pH range of 4-7 in aqueous solution and a moisture content of at least 4 wt. per cent is obtained by treating the starch in aqueous suspension simultaneously with the acid anhydride of the dicarboxylic acid and the amine at a pH of 4-7. The starch may be derived from corn, wheat, potato, sorghum, waxy maize, tapioca, rice, and sweet potato or their oxidized forms, or may be a hydroxyalkyl starch. Sizing compositions comprising the starch salt, wax and a binder (sodium polyacrylate) are used for processing yarns of polyester, nylon, acrylic fibre or mixtures with wool, rayon and cotton.
Patent GB-265090-A (GB)
Title: Improvements in advertising devices
IPC: G09F13/12
Filed: 1926-09-08
Abstract: 265,090. Dolden, A. C., and Keller, A. V. Sept. 8, 1926. Illumination, changing advertisements by controlling.-A casing, Fig. 1, provided with a transparent mirror 11 in a hinged front or side 10, is fitted with parallel supports 8 carrying insulated studs 14, between which are sprung removable box-like units shown in Fig. 2. In each unit is mounted a lamp 2 connected to contacts 3, which are adapted to engage the studs on the bars 8. The front of each unit is grooved to receive a stencil or transparency backed bv a diffusing sheet, which is held in place by an apertured mask clipped on the unit. The units may be partitioned, and the mask may carry perforated advertisements backed by coloured glass &c. The lamps 2 are lit singly or in groups by a thermal or motor switch.
Patent GB-1503750-A (GB)
Title: Mining equipment
IPC: E21D23/08
Filed: 1975-05-22
Abstract: 1503750 Lifting ram for an advancing unit FLETCHER SUTCLIFFE WILD Ltd 20 May 1976 [22 May 1975 (2)] 22140/75 and 22142/75 Heading EIP A hydraulic self advancing mine roof support comprises at least one advancing piston and cylinder unit 9 located in or adjacent to a base member of the support and attached at or near the front of the support by a lifting ram 20 operable in a direction normal to the plane of the support base in order to raise via a relay bar 22 a conveyor 10 clear of an obstruction. The unit 9 is attached to the base solely by the attachment of the piston 12 to the ram 20. The cylinder 11 has lateral projections 15 on its end cap which slide on flanges on -the base members. The relay bar 22 is attached to the front of the cylinder 11 and projects forwardly of the roof support to the clevis rail of the conveyor 10. The lifting ram 21 may be double acting or permanently pressurised on its annulus side and controlled by the pressure of fluid on the full bore side. The attachment of the lifting ram 21 to the advancing unit 9 and to the roof support may be via a pin joint or a ball joint.
Patent GB-684880-A (GB)
Title: Improvements relating to suction cleaners
Inventor: WHITE HARRY BERTRAM
IPC: A47L5/32
Filed: 1950-09-08
Abstract: 684,880. Vacuum cleaners. HOOVER, Ltd., Sept. 8, 1950. No. 22189/50. Class 8 (i). In a vacuum cleaner in which an agitator 20 is driven by a belt 21 passing through the suction passage 12, the belt is removed from the pulley 19 when the cleaner is required for off-the-floor cleaning and the suction passage is sealed by a converter 55. The opening for the converter 55 is closed by a lid 48 connected by rods 52, 46 to an arm on a quadrant 34 that meshes with a pinion 33 attached to the member 32 for removing the belt from pulley 19 when the lid is lifted. The bottom of the converter has grooves 57 so that when inserted, the belt is pressed between these grooves and grooves 58 in the bottom plate 23 to complete the seal. The converter is held in position by a spring clip 59.
Patent GB-880203-A (GB)
Title: Improvements in and relating to clutches
IPC: F16D45/00
Filed: 1959-06-29
Abstract: 880,203. Friction clutches. ZAVODY 9, KVETNA, NARODNI PODNIK. June 29, 1959 [July 10, 1958], No. 22245/59. Class 80 (2). In a disc clutch the discs are carried by inner and outer drums 2, 12 respectively engaging pressure plates 4, 14 of which plate 4 is movable to the left for engagement by centrifugal balls 11 and also by a ratchet-screw member 7, 8 between the transmission shaft 5 and a brake member 9 on plate 4, while plate 14 is urged to the right by springs 17 carried by pins 18 projecting from drum 12 and may be moved in the opposite direction by an over-riding manual release lever 22 and push-rod 21. The balls 11 move radially along guides in a supporting disc 10 secured to the driving member 1, against the force of springs 27, their outward movement being limited by drum 2. Axial movement of plate 4 is limited by a stop 25 on shaft 5, and of plate 14 by its abutment against stop surfaces 24, Fig. 2 (not shown) on drum 12. The ratchet member 7, 8 enables the clutch to be engaged with torque transfer between shaft 5 and driving member 1. A second embodiment, Fig. 5 (not shown), comprises only a single disc.
Patent GB-920663-A (GB)
Title: Improvements in the volume-correction of gases and vapours flowing in pipe-lines
IPC: G06G1/00
Filed: 1960-06-25
Abstract: 920,663. Integrating-apparatus. H. GEHRE. June 24, 1960 [June 25, 1959], No. 22251/60. Addition to 832,871. Class 106 (4). The method of measuring the volume of gas flowing in a pipe-line described in the parent Specification is modified by the inclusion of a correction to allow for variations in the behaviour of vapours under conditions wherein they no longer behave as ideal gases. Under high pressures the influence of a compressability factor increases as the vapour approaches saturation and its effect is taken into account by multiplying the correction factor Z of the parent Specification by the compressibility factor K. This factor K varies with pressure and temperature, but can be resolved into two parts, one K<SP>1</SP> dependent on pressure but independent of temperature and the other k/k<SP>1</SP>   dependent on temperature but independent of pressure at least for pressures up to 30-40 atmospheres. The apparatus shown is a diagrammatic representation of that part of the apparatus shown in the parent Specification for producing a vertical movement of a rod 27, the corresponding member in this Specification being the rod 32. The pressure of the gas is applied to a bellows 3 and acts on a lever 8, movement of which is opposed by a weight 18 suspended by a band 19 from a pulley 12. To introduce the correction K<SP>1</SP> which is independent of the temperature the band 19 passes over a curved member 20<SP>1</SP> shown by a broken line attached to the pulley 12. The member 20<SP>1</SP> may be formed as a circular arc provided with adjusting screws and its shape can be determined empirically. The temperature produces movement of a lever 37, pivoted at 39, which rolls on a lever 38 pivoted at 40 and so acts on a bar 24 corresponding to the carriage shown at 21 in the parent Specification. The shapes of the levers 37, 38 are chosen so that the required correction K/K<SP>1</SP> is automatically made. In a second embodiment, the correction K/K<SP>1</SP> may be resolved into two parts, one of which is applied to the temperature-responsive mechanism, the other being applied to the rod 32. Specification 742,648 also is referred to.
Patent GB-824230-A (GB)
Title: Halogenated organic compounds and derivatives thereof
IPC: C07C51/16
Filed: 1954-08-09
Abstract: The invention comprises: (a) compounds of the general formula <FORM:0824230/IV (b)/1> wherein X1 and Q represent chlorine or bromine, Y1 and U represent chlorine or fluorine, R2 and R4 each represent a haloalkylene unit from a halogenated alkene containing at least one fluorine atom, and p and q are integers not greater than 20, and wherein each of the two carbon atoms joining -(R2)p- and -(R4)q-either has attached thereto at least one halogen atom or else has attached thereto more than one carbon atom (other than that linking -(R2)p-and (R4)q-) of which at least one bears at least two halogen atoms other than iodine; (b) the preparation of compounds (a) by coupling, by the process of Specification 774,103, one molecule each of compounds of the general formul\m g CF2X1CClY1(R2)pZ and CF2QCClU(R4)qZ wherein Z represents an atom of bromine or especially iodine; (c) dehalogenation of compounds (a) to dienes of the general formula CF2=CY1(R2)p(R4)qCU=CF2 or, in some cases, trienes of the general formula <FORM:0824230/IV (b)/2> wherein R5 and R6 represent respectively R2\t and R4 less their terminal carbon atoms, and R7 and R8 represent the residual substituents on such terminal carbon atoms, viz., halogen, haloalkyl, alkyl or hydrogen; (d) oxidation (e.g. with potassium permanganate) of the products obtained according to (c) to dicarboxylic acids containing a smaller number of carbon atoms, e.g. compounds of the general formula HOOC(R2)p(R4)qCOOH from the dienes; (e) treatment of the silver salts of these dicarboxylic acids, obtained by process (d) from the dienes, with chlorine, bromine or iodine to effect decarboxylation and halogenation to haloalkanes; (f) pyrolysis of the corresponding alkali metal salts to terminallyunsaturated halodienes having two fewer carbon atoms.  In the case of the trienes, the oxidation process (d) usually involves a splitting of the molecule; thus the triene CF2= CFCF2CF=CFCF2CF=CF2 yields the new compound perfluoromalonic acid, the dimethyl ester and diamide of which are described.  Reference is also made to the reaction of the diene products of (c) with an alkali metal bisulphite to form a sulphonated compound of the formula <FORM:0824230/IV (b)/3> (M=alkali metal), from which the corresponding disulphonic acid may be liberated by the action of sulphuric acid.  Suitable starting materials for process (b) are the products of Specification 824,229, and in this case X1 will normally be identical with Q, Y1 with U and R2 with R4, whilst p and q will be identical or different, depending on whether or not the products of the said Specification have been fractionated.
Patent GB-237455-A (GB)
Title: Improvements in or relating to fluid-pressure operated motors suitable for windshield cleaners or wipers
IPC: B60S1/10
Filed: 1924-09-22
Abstract: 237,455. Oishei, J. R., and Horton, E. C. Sept. 22, 1924. Actuating-mechanism. - Valve mechanism for supplying fluid pressure alternately at either side of an oscillating piston is operated with a snap action by the piston at the ends of its stroke, and means are provided for positively moving the valves should they stick. The oscillating piston 25 is fixed to a shaft 26 having lugs 54 which rock a pivoted member 53 to shift one end of a spring 65 and thus rock with a snap action a lever 51 having arms 52, 52<a> connected with the valves 37a, 38<a>. For positively moving the valveoperating lever 51 in case the valves should stick, arms 59, 60 are provided on the member 53.
Patent GB-824810-A (GB)
Title: Improvements in fluid flow control valves
IPC: F16K31/143
Filed: 1957-07-16
Abstract: 824,810. Valves. COMPAGNIA ITALIANA WESTINGHOUSE FRENI E SEGNALI. July 16, 1957 [July 20, 1956], No. 22475/57. Class 135. A stem 8 with a hand wheel 9 is provided with a split thrust-bearing 12 and one or more helical projections 19 which register with one or more helical grooves 18 in the rod 17 of a piston 15 that is prevented from rotating by a pin 25; the stem ends with a multiple trapezoidal thread 29 which screws into a head 30 connected to a valve closure 32 via a split thrust-bearing 34 and a stem 31, the closure being in an hydraulic system 46, 47. Seals 16, 22, 24 and 28 are associated with the piston 15, rod 17 and stem 8, respectively, whilst further seals 27 coact with the pin 25; a stuffing-box comprising a packing gland 39 and gaskets 40 seals the stem 31, an opening 41 in the valve casing facilitating access to the stuffing-box. Counter-clockwise rotation of the hand wheel 9 causes the head 30 to screw on to the thread 29 and lift the closure 32 from its seat since the head 30 is prevented from rotating by a screw 36, and the stem 8 cannot undergo axial displacement due to the bearing 12; during rotation of the stem 8 the piston 15 is elevated because of the interaction of the projections 19 and grooves 18. Clockwise rotation of the hand wheel seats the closure 32 and restores the piston 15 to the position shown. The valve may be opened by supplying compressed air underneath the piston 15 and opening the space above the piston to atmosphere, the axial displacement of the piston 15 causing rotation of the stem 8 through the projections 19 and grooves 18; the valve is closed by reversing the pressure and atmospheric connections. The pitch of threads 29 may be chosen to ensure that the valve cannot be opened by pressure in the hydraulic system should the air supply fail when the valve is in the closed position. In a modification, the ends of the cylinder housing the piston 15 are interconnected by tie-rods whilst the stem 8 is keyed to a threaded member engaging a fixed threaded bush, the threaded member being integral with the stem 31.