baber/WOPTO huggingface dataset:
Patent GB-1044059-A (GB)
Title: Crushing plant
IPC: B02C1/04
Filed: 1964-09-29
Abstract: 1,044,059. Jaw crushers. PEGSON Ltd and R. TABERNER. - Sept. 10, 1965 [Sept. 29, 1964], No. 39531/64. Heading B2A. A jaw crusher comprises a housing 1, Fig. 1, with a fixed transverse upstanding partition wall 3 to define two separate crushing chambers A, B. In each chamber is an inclined crusher jaw 4 movable with a compound swinging motion, relatively to the partition wall, so as progressively to crush rock fed into the chamber concerned from the open top of the latter and descending through the same between the swinging crusher jaw and the said wall. As described, the jaws are actuated from the upper end by individual electric motors 5 via pulleys 6. The pulley shaft has its central portion 9, Fig. 4 (not shown), eccentrically disposed and carrying a sleeve 10, which forms part of the main body of the jaw stock 11 of the jaw 4, the rear face of the jaw being supported against a fixed bearing in the housing by a toggle plate 12. The arrangement may also comprise a pitman and a double toggle link of known type. The central partition 3 is formed by side plates 19 connected and reinforced by cross webs 20. The faces of the side plates are protected by replaceable lines 21 held in place by wedges 26 and bolts 27 and the upper part of the partition is protected by a ridged cap 32 secured by bolts 33. Rock to be crushed is delivered by an endless articulated-plate conveyer 28 from a hopper 30 via a shoot 31 to the housing 1. Material may be delivered from the crusher by a belt conveyer. The bottom discharge openings of the crusher may be varied in size to effect proportioning of the crushed material, and the jaws may be adjusted by shims 34. In an alternative arrangement the liner of the central partition may be clamped by operation of hydraulic or fluid cylinder units.
Patent GB-973231-A (GB)
Title: Anthelmintic compositions containing organo-phosphoric esters
Inventor: KINGSBURY PHILIP ARTHUR
IPC: A61K31/665
Filed: 1959-11-20
Abstract: A veterinary composition for the treatment of infestations of nematodes in sheep and cattle by oral or parenteral administration comprises 100 parts by weight of one or more ammonium cations of the formula <FORM:0973231/A5-A6/1> wherein R1 is a hydrogen or halogen atom or a methyl, ethyl, methoxy, methyl-mercapto, formyl, acetyl, cyano, nitro or nitroso group, when M is a benzyl group optionally substituted in the ortho-position with a halogen atom or a methyl, ethyl, methoxy, methyl mercapto, nitro or nitroso group or R1 is a hydrogen or halogen atom or a methyl or nitro group when M is a thenyl group, in the form of one or more of their pharmaceutically acceptable salts and 0.05 to 25.0 parts by weight of one or more esters of formula <FORM:0973231/A5-A6/2> wherein R2 and R3 are the same or different and each is an alkyl group, X is oxygen or sulphur and R4 is hydrogen or halogen.  Preferably both R2 and R3 are ethyl. Specified esters are 3 - chloro - 4 - methyl - 7 - oxycoumarin - o,o - diethylphosphoric acid ester and the corresponding thiophosphoric acid ester, 4-methyl-7 - oxycoumarin - o,o - diethylphosphoric acid ester and 3-bromo-4-methyl-7-oxycoumarin-o,o-diethyl thiophosphoric acid ester.  Preferred salts of Formula I are the chloride, bromide, iodide, citrate, p-toluenesulphonate p - chlorobenzenesulphonate, 2 - hydroxy - 3, naphthoate and embonate.  The composition may be administered orally, as non-aqueous suspensions, powders, tablets, capsules, cachets, granules, animal feedstuffs, emulsions of the oil-in-water or water-in-oil type, syrups, drenches, coated tablets or granules, aqueous or oil suspensions and dispersible powders.  The compositions are formulated with diluents, anionic surface-active agents, dispersing agents, lubricants, flavours, thickeners, preservatives and binders.
Patent GB-931549-A (GB)
Title: Improvements in disc brakes
Inventor: BUTLER HENRY JAMES
IPC: F16D55/224
Filed: 1958-12-09
Abstract: 931,549. Disc brakes. DUNLOP RUBBER CO. Ltd. Dec. 3, 1959 [Dec. 9, 1958], No. 39587/58. Class 103 (1). A disc brake comprises a rotatable disc 1, a non-rotatable calliper-type housing 2 having two calliper portions 2a straddling the outer periphery of the disc and connected together by a bridge-piece 2b and provided on each side of the disc with apertures in which pressure plates 3 carrying friction pad assemblies 12, are angularly movable about pivots 4 towards and away from the disc by an applying mechanism 5 to effect such a movement, the friction pad assemblies 12 being located circumferentially by removable keep plates 13. The applying mechanism 5 takes the form of a piston and cylinder device mounted on the outer portion 3a of one pressure plate 3, a piston-rod 7 extending axially adjacent the periphery of the disc through a hole 8 in the bridge member 26 to connect the other pressure plate 3. Fig. 3 illustrates the brake in the condition wherein the friction pads 12 are due for replacement. The keep plates 13 are hinged about their pivots 4 and held in position by lugs 13a, releasably secured to the calliper portions 2a at 15. The friction pads are housed in recesses 11 formed in the pressure plates 3 and the keep plates 13 may be removed radially as a single unit or separately in an axial direction. Brake squeal may be prevented in this brake by providing the keep plates 13 with a small localized dimple or a partly sheared springy portion which exerts a slight frictional end pressure on the pad assemblies 12 without preventing their movement towards or away from the disc 1.
Patent GB-892556-A (GB)
Title: Valve holder assembly machine
Inventor: MORTON JACK BERTRAND
IPC: H01R43/20
Filed: 1959-11-23
Abstract: 892,556. Making valve-holders. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 15, 1960 [Nov. 23, 1959], No. 39684/59. Class 83 (2). A valve holder assembly machine comprises a bowl feeder 1 for containing valve contacts and having at least one track 2 or 3 into which the contacts can be delivered, a rotatable pickup table 4 carrying a plurality of heads 5 each containing one or more pins 6, 7 for picking up a contact from the track, table indexing means 13, 14, 15 to present each head in sequence to the track and means for loading a pin of the head presented to the track with a contact from the track, a rotatable carrier table 9 for carrying a plurality of valve holders 11, indexing means 17, 18, 19 to present each valveholder in succession at a position to enable a contact carried by a loaded pin of a pick-up head to be inserted in a valve-holder, and further indexing means for rotating the valve-holder at the pick-up position in synchronism with the indexing of the pick-up table to enable a further contact or contacts to be inserted. In the embodiment shown each pick-up head has two pins 6, 7 which are integral with a spring-loaded plunger 25 which is urged downwards by a spring 26. Each pin extends through a guide 27, 28 and the whole pick-up table 4 is reciprocated vertically by a plunger. As the table descends the contacts carried by the pick-up head which is in line with a valve base supported on a pedestal 10 are inserted in the base. As the downward movement of the table continues the plunger 25 contacts the top of the valve-holder and withdraws the pins from the contacts, and the guides 27, 28 engage the lips of the contacts and finally seat them. After each reciprocating motion of the table 4 a fresh pair of apertures is presented to the pick-up pins either by rotation of the pedestal or by indexing the table 9.
Patent GB-339519-A (GB)
Title: Improvements in and relating to compression refrigerating machines
IPC: F25B31/02
Filed: 1929-12-30
Abstract: 339,519. British Thomson-Houston Co., Ltd., (Assignees of Steenstrup, C.). Dec. 29, 1928, [Convention date]. Oscillating - cylinder pumps; regulating compression.-An oscillating cylinder compressor 3 is stationed within a casing 6 for compressed refrigerant, and is adapted to receive refrigerant from the evaporator of the system normally and to deliver into the casing, from which the compressed refrigerant passes to a condensing coil 9 in the water-cooled jacket of the casing, and so to the evaporator. At low speeds the inlet port 14 of the compressor is opened to the interior of the casing and the refrigerant is circulated idly, the supply from the evaporator being cut off. The normal supply takes place through a coil 45 leading to a swinging pipe 42 ending in a passage in a member 16, on the face of which the cylinder oscillates, thus opening the inlet port 14 to the pipe 42 during a part of the stroke, and closing it during the remainder. The member 16 is pivoted at one end and attached at the other to a plunger 19 moving in a cylinder 20; a spring draws the plunger into the cylinder against the pressure of oil supplied by an oscillating pump 22 actuated by an eccentric from the shaft 5 which drives the compressor and is driven by an electromotor. The pump draws oil from the bottom of the casing through a strainer 41 and delivers it through passages 27, 28 to a chamber 29, from which a passage 30 conveys a portion to the cylinder 20. Another portion flows to a passage 32. the outlet of which is controlled by a centrifugal device 33 which at high speed closes the mouth and puts the oil in the cylinder 20 under pressure. At low speeds, the mouth is opened and the pressure relieved, allowing the spring to retract the plunger and draw the member 16 clear of the compressor inlet, port 14. The compressor then draws directly from the casing 6 through this port, and delivers into the casing through its flap discharge valve 15, a pipe 47 and a muffle 46. The centrifugal device 33 is surrounded by an oil cup 37 which sprays the oil over the casing wall. whence it falls to an annular chamber 39 and so overflows to the bottom of the casing.
Patent GB-842768-A (GB)
Title: Improved sealing means for an aperture in an article comprised of flexible sheet material
IPC: B63C11/02
Filed: 1957-12-23
Abstract: 842,768. Diving suits. SKINNER & CO. Ltd., E. T., and GUGEN, N. O. Dec. 8, 1958 [Dec. 23, 1957], No. 39891/57. Class 68(2). [Also in Groups VII and X] Means for sealing an aperture 16 in a suit 11 comprise two co-operating strips 14 and 15 of flexible waterproof material. The strip 14 is longer than the strip 15 and is sufficiently stiff to form a bow concave towards the strip 15 when the aperture is open as shown in Fig. 1. The strip 15 is sufficiently elastic to stretch to the length of the strip 14. To seal the aperture the strips are flexed around the body of the wearer of the suit and secured by the straps 17 and 18 so that the strip 15 is stretched and bears tightly against the inner strip 14. The triangular crosssection of the strip 15 and the corresponding groove 21 in the strip 14 prevent lateral slip. For suits which have to be sealed against the escape of internal pressure (such as airmen's suits) the strips are modified by the addition of an interlocking bead and groove (Fig. 5). In a further modification (not shown - see Fig. 7), the strip 15 comprises a tubular bead which has a port leading to the interior of the suit.
Patent GB-1514655-A (GB)
Title: Enclosed gas-compressing unit
IPC: F04B39/06
Filed: 1976-09-27
Abstract: 1514655 Rotary positive-displacement fluid-machines GARDNER-DENVER CO 27 Sept 1976 [19 March 1976] 39942/76 Heading F1F In a gas-compressing unit for e.g. air, a compressor 28 driven by an I.C. engine 26 noise emission is reduced by an enclosure 54 wherein two compartments 82, 108 are formed by a partition 130 and another partition 76 constituted at least in part by heat exchanging means such as heat exchangers 40, 42 for the engine and compressor coolants, air being drawn by a fan 46 through inlet openings, which may be shielded by louvres 84, 85, thence through the heat exchanging means, vertical ducts 136, 138, 140 formed by the partition 130, partitions 132, 134, and walls 120, 122, 124 of the enclosure, and outlet openings, which may be covered by louvres 144, 146. Sound absorbent panels or linings 78, 106, 150 may be attached to end doors 72, 74 and a central roof portion 100, which may be included in the enclosure, and the partitions 132, 134. The central roof portion together with side doors 102, 104 with which the enclosure may be furnished, may be removable. Longitudinal elements, or "fenders", 56, 58 may be comprised in the enclosure and may accommodate a fuel tank 60. A compressed-gas receiver 30 may be situated between the partitions 132, 134. The compressor may be of the liquid-injection meshing- screw, or sliding-vane, type.
Patent GB-991850-A (GB)
Title: A process for the preparation of high molecular weight polyoxymethylenes
IPC: C08G2/00
Filed: 1963-10-10
Abstract: Compounds of divalent tin of the general formula <FORM:0991850/C2/1> where R is a hydrogen atom or a polyoxymethylene radical containing one to fifty carbon atoms and x is 50 to 3000 are prepared. The compounds are produced from divalent tin salts of organic carboxylic acids, dithiocarbaminic acids, xanthogenic acids and carbaminic acids by polyaddition to formaldehyde, a typical tin salt being that of 2-ethylcaproic acid.  In an example, high molecular weight polyoxymethylene prepared in methylene chloride as polymerization medium in the presence of tin-II-octate as catalyst is washed with methylene chloride and stored for two days in water at room temperature to form insoluble divalent tin hydroxides.  This is filtered, washed with acetone, dried, dissolved in butyroactone and freed from divalent and tetravalent tin hydroxides by filtration while hot. The polyoxymethylene is precipitated with methylene chloride, forced from butyrolactone and kept in methylene choride.ALSO:Formaldehyde is polymerized at - 20 DEG  to + 120 DEG C. using as catalyst a tin compound of formula <FORM:0991850/C3/1> where R is a hydrogen atom or (O-CH2)y, where y is 1 to 50 and n is 50 to 3000.  The polymerization may be carried out in an alkylating agent or in an acylating agent or in the gaseous phase in the presence of high molecular weight polyoxymethylene present in the form of a fluidized bed.  Specified catalysts are the reaction product of formaldehyde with a divalent tin salt of 2-ethyl caproic acid or with tin-II-octoate.  The polymerization may take place in solution preferably in methylene chloride or ethyl ortho-formate and may be continuous or not.  The formaldehyde and the catalyst may be added gradually to the polymerization medium.  Specification 786,167 is referred to.
Patent GB-1318451-A (GB)
Title: Electrically-ignitable gas-fuelled lighter
IPC: F23Q2/28
Filed: 1970-08-20
Abstract: 1318451 Spark ignition for gas lighters BRAUN AG 20 Aug 1970 [23 Aug 1969] 40127/70 Heading F4F An electrically-ignitable gas-fuelled lighter includes two spaced ignition electrodes 3, 4 one of which is arranged as a baffle extending into the central zone of the path of gas (that is a lanceolate zone formed of pure gas) discharged from fuel outlet orifice 1, the other electrode 4 being arranged outside of the gas path, the electrodes 3, 4 and the central axis of the orifice 1 lying in a single plane, so that between the two electrodes there is, in operation, a gas/air mixture in every possible relative concentration. The electrodes 3, 4 are spaced between 0À5 mm. and 3 mm. apart and more preferably between 1 mm. and 2 mm. apart. The negative pole of an H.T. source, and hence the lighter casing, may be connected to electrode 3 to ensure efficient heat dissipation, the electrode 4 being mounted in an insulator 51 to be level with or below and inclined towards electrode 3, the insulator being fastened in a wall of a protective tube 5 or a U-shaped metal part (6) as in Figs. 5 and 6 (not shown).
Patent GB-1200405-A (GB)
Title: Improvements in or relating to elastic pipe-carrying hangers
Inventor: LIESEGANG GERHARD
IPC: F16L3/205
Filed: 1968-08-22
Abstract: 1,200,405. Constant force spring units. LISEGA, ROHRLEITUNGSZUBEHOR G.m.b.H. 22 Aug., 1968, No. 40154/68. Heading F2S. An elastic pipe-carrying hanger having a supporting force which is substantially constant during vertical displacements of the pipe load has two toggle levers 2 which have ends 2b hinged to a tie bar 1, the latter transmitting the pipe load to at least one spring 6 which is arranged parallel and symmetrical to the tie bar and is held between pressure yokes 4, 5; have ends 2a connected by drag links 9, having nuts 9a thereon, to the pressure yolk 5 which is held by nuts 7a to arms 7 of a fixed member 8; and have a pivot portion 2c provided with a roller 3 movable relative to the yolk 5. In use variable spring force is compensated by leverage adjustment effected through the pivot portion 2c.
Patent GB-1049964-A (GB)
Title: 17-ether compounds of 17ª‰-hydroxy-5ª‡-androstano [2,3-c] furazan
IPC: C07J75/00
Filed: 1965-09-21
Abstract: The invention comprises a compound of the formula <FORM:1049964/C2/1> wherein R is cyclopent-11-enyl or tetrahydropyran-21-yl and processes for the preparation thereof by condensing 17b -hydroxy-5a - androstano - [2,3-C] furazan with cyclopentanone diethylacetal or 2,3-dihydropyran respectively.
Patent GB-951656-A (GB)
Title: Improvements in the filtration of brewers' mash
Inventor: SHORE DAVID TEIGNMOUTH
IPC: C12C7/14
Filed: 1960-11-24
Abstract: The method of filtering brewers' mash described and claimed in the parent Specification is improved or modified by interconnecting the wort transfer lines at the various stations (or at some of them) through pressure operated valves for the recirculation of liquor or wort under control responsive to the level of process liquid in each of the mash tuns during their dwell in the various stations and to the supply pressure operating in the sparge lines supplying either liquor or recirculated wort to those stations.  Specification 942,136 also is referred to.
Patent GB-1026175-A (GB)
Title: Improvements in abrasive coated cloth
Inventor: VOSS RONALD
IPC: B24D11/02
Filed: 1962-10-25
Abstract: Abrasive cloth has a backing fabric (Division D1) having core-spun yarns of cotton with a synthetic fibre core.  In an example a first coat of water-soluble phenolic resin was applied to the cloth at 18 lb. per ream followed by 36 grit aluminium oxide at 61 lb. per ream and a further coat of the resin at 28 lb. per ream.ALSO:Emery cloth has a backing fabric having core-spun yarns of cotton with a synthetic fibre core.  The core-spun yarn may form the warp and weft or either, the other yarns then being wholly cotton.  The synthetic fibre core may be of polyamide, polypropylene or polyethylene terephthalate.
Patent GB-1341717-A (GB)
Title: Signal amplifiers
IPC: H03F1/32
Filed: 1971-08-31
Abstract: 1341717 Amplifiers; line equalizers WESTERN ELECTRIC CO Inc 31 Aug 1971 [4 Sept 1970] 40628/71 Headings H3W and H4R The invention relates to a signal amplifier of the feed-forward error-corrected type; i.e. one in which the input signal e is divided by an input coupler 20 into two parts, one of which is passed to a main amplifier 21 and the other to a delay network 23. The outputs of amplifier 21 and delay network 23 are fed to input ports 1, 2 respectively of a sampling coupler, which is so arranged that amplified signal appears at output port 3, but that signal components cancel at output port 4, leaving only error signals introduced by amplifier 21. The signal from port 3 is passed over a delay network 22 to input port 1 of an error injection coupler 27, while the error signal at port 4 is amplified by error amplifier 24 and applied to input port 2 of error injection coupler 27 and combined with the main signal so that at output port 3 there appears a signal from which the error has been cancelled. If such an arrangement is to be used for correcting for line distortion the gain/frequency characteristic must be suitably shaped. According to the invention, this shaping is performed by the couplers 20, 25, 27, and the Specification gives a suitable design of coupler (Fig. 4, not shown). The shaping of the frequency response may be performed entirely by the couplers, the gain of the amplifiers being independent of frequency, or alternatively part of the shaping may be performed by the amplifiers.
Patent GB-842839-A (GB)
Title: Resolution of dl-ttryptophan
IPC: C07D209/20
Filed: 1958-12-17
Abstract: The invention comprises optically active tryptophan camphorsulphonates, viz:-D-tryptophan. d-camphorsulphonate, D-tryptophan. l-camphorsulphonate, L-tryptophan. d-camphorsulphonate and L-tryptophan. l-camphorsulphonate.  The compounds are formed during the resolution of mixtures of D- and L- tryptophan with an optically active isomer of camphorsulphonic acid, or during the resolution of mixtures of d- and lcamphorsulphonic acids with an optically active isomer of tryptophan.  D- and L-tryptophan may be recovered from their salts with camphorsulphonic acid by treatment with an alkali or ion exchange resin.
Patent GB-1111629-A (GB)
Title: Method for mapping salt domes at depth
Inventor: HOLSER WILLIAM THOMAS
IPC: G01V3/30
Filed: 1966-09-13
Abstract: 1,111,629. Echo ranging using electromagnetic waves. CHEVRON RESEARCH CO. 13 Sept., 1966, No. 40955/66. Heading H4D. In order to enable accurate positioning of an oil well bore 12 into a sedimentary formation with respect to a salt dome 10, the interface of the salt dome and adjacent sedimentary formations is determined by echo ranging utilizing radio or light waves from a probe 40 in a bore hole 30 drilled into the salt dome. Radar.-The aerial in the probe may be omnidirectional in the horizontal plane or directional with continuous rotation. Scanning in elevation may be added. The radar may be pulse-echo or F.M. type, the latter being preferred for short ranges. The preferred radio frequency is in the range 10<SP>6</SP> to 10<SP>10</SP> c/s. The probe incorporates a radome. On the surface a type A display 60 is photographed together with aerial azimuth and probe depth. The probe aerial may be of the Yogi type and collapsible, Fig. 4 (not shown) or may incorporate a parabolic reflector, Fig. 3 (not shown). The fluid in the bore hole may be chosen to afford efficient coupling to the salt dome. Light echo ranging.-The preferred frequency is in the range 2 x 10<SP>13</SP> to 10<SP>15</SP> c/s. from a pulsed laser, Fig. 6 (not shown). Directional scanning is by rotating inclined mirrors.
Patent GB-1333812-A (GB)
Title: Tetraphenol its preparation and its use
IPC: C08G64/14
Filed: 1971-09-02
Abstract: 1333812 Polycarbonates BAYER AG 2 Sept 1971 [19 March 1971] 40982/71 Heading C3R [Also in Division C2] The invention comprises 1,4-bis-(4,4<SP>11</SP>-dihydroxy - triphenyl - methyl) - benzene. This compound may be prepared by condensing 1,4- bis-(α,α - dichlorobenzyl) - benzene with phenol. The intermediate 1,4 - bis - (α,α - dichlorobenzyl)-benzene is prepared either by chlorination of 1,4-dibenzyl benzene or by chlorination of 1,4-dibenzoyl benzene. The invention also comprises polycarbonates containing residues of the new tetraphenol. Example 2 describes the preparation of a polycarbonate resin by the reaction of phosgene; 1,4 - bis - (4,4<SP>11</SP> - dihydroxy - triphenyl - methyl)- benzene; and bis-2-(4-hydroxyphenyl)-propane.
Patent GB-1143284-A (GB)
Title: Improvements in yarns
IPC: B60C9/00
Filed: 1966-09-14
Abstract: 1,143,284. Tyre cords. CELANESE CORP. 14 Sept., 1966 [21 Sept., 1965], No.41074/66. Heading B7C. [Also in Division D1] A tyre cord yarn comprises nylon filaments forming between 20 and 80% by weight of the yarn intermingled with linear polyester filaments, the yarn having an elongation at break of above 10% and a tenacity above 6 grams per denier. The filaments are intermingled by means of an air jet or by being twisted on a down-twister. Two yarns each twisted in one direction may be twisted together in the opposite direction to form a tyre cord, which is woven into a fabric, dipped in adhesive, heattreated, and used for tyre building.