baber/WOPTO huggingface dataset:
Patent GB-623563-A (GB)
Title: Improvements in and relating to appliances for use in processes of curling and waving the hair
IPC: A45D2/06
Filed: 1946-06-29
Abstract: 623,563. Hair-waving appliances. SARTORY, P. June 29, 1946, No. 19512. [Class 131] . A hair curler for. use in permanent waving comprises a rod a on which the hair--is wound and clamping means consisting of discs 1, 2 mounted centrally at the end of the rod in adjustable spaced relation and receiving between them a locking plate 7 mounted for pivotal and sliding movement with respect to the discs, the discs and plate being formed with radial slots 3 and 8 which move into coincidence with their open ends adjacent in the closing movement of the clamp. The tress is confined at the blind ends of the slots a rubber pad 12 being provided. The disc 2 is sliding fit on the threaded stud 4 which is secured to the disc 1 and on which the rod a is screwed to approximate the discs. In modifications a bayonet joint may' replace the screw connection and the curler may have a one-way clutch
Patent GB-479004-A (GB)
Title: Improvements in nickel anodes
IPC: C25D17/10
Filed: 1937-07-14
Abstract: An anode consisting essentially of nickel contains 0,05-2 per cent of carbon, 0,05-1 per cent of magnesium, 0,05-1 per cent of titanium, and 0,05-1 per cent of silicon; it may also contain up to 0,5 per cent of cobalt, up to 0,25 per cent of iron, up to 0,25 per cent of copper, and up to 0,25 per cent of manganese.
Patent GB-1019696-A (GB)
Title: Improvements in or relating to rubber and the like material bushes
IPC: F16F1/387
Filed: 1964-05-11
Abstract: 1,019,696. Rubber bushes. PNEUMATIQUES CAOUTCHOUC MANUFACTURE ET PLASTIQUES KLEBER COLOMBES. May 11, 1964 [May 10, 1963], No. 19586/64. Heading F2S. In a rubber or the like bush assembly comprising a rubber or the like sleeve 3 secured between inner and outer rigid sleeves 4, 5 the outer sleeve is provided with an outwardly directed flange 6 at one end and an inwardly directed flange 9 at the other, the two flanges being overlaid by portions 7, 10 of rubber or the like. The bush assembly is mounted between a part 1 of, for example, the chassis of a vehicle and a movable part 2 such as a suspension arm. The portion 10 may be of a harder rubber than that of the sleeve and a recess 11 may be provided in the sleeve adjacent the inner edge of the inwardly extending flange 9.
Patent GB-734522-A (GB)
Title: An improved optical viewing apparatus
Inventor: MURRAY MICHAEL
IPC: G02C13/00
Filed: 1952-08-05
Abstract: 734,522. Optical apparatus. MURRAY, A. Nov. 4, 1953 [Aug. 5, 1952], No. 19636/52. Class 97 (1). To enable a person of defective vision to view himself whilst wearing a spectacle frame having no lenses apparatus is provided comprising a stand or support 3 bearing a mirror 4 having mounted in front thereof a suitable lens 5 through which the person looks at the mirror, means being provided for adjusting the distance between the mirror and the lens. In the form shown the mirror 4 is carried by a mount 8 movable in a slot in the stand 3 and held by a clamping nut 10. Alternatively both lens and mirror may be adjustable.
Patent GB-380191-A (GB)
Title: Improvements in or relating to railway and like switch points
IPC: E01B7/02
Filed: 1931-07-08
Abstract: 380,191. Railway &c. switch points. WILLIAMS, Ltd., H. and WILLIAMS, O. R., Railway Appliances Works, Darling- ton. July 8, 1931, Nos. 19664 and 2310S. [Class 104 (i).] The stretcher bar 10 for the tongues 3 of switch points is mounted on antifriction rollers 13, preferably of the travelling type described in Specification 325,977, [Class 104 (i). Railway and tramway crossings &c.], and is provided at each end with a recess 17, preferably of arcuate form, whereby the tongues 3 are normally held clear of the slide surfaces 7 of the chairs 5 but are lowered into contact therewith when in the home position by interengagement of the rollers 13 and recesses 17. Correct alignment of the travelling rollers 13 may be maintained by forming the recess with one edge 19 lower than the other as by forming the recess in one end of a cut-away portion 25 ; and by providing also a shoulder 21 adjustable in position or else suitably positioning the other end of the cut-away portion. By these means the rollers are brought into correct alignment each time the stretcher bar reaches one or other of its extreme positions.
Patent GB-992499-A (GB)
Title: Improvements in or relating to the manufacture of semiconductor devices
IPC: H01L29/06
Filed: 1962-05-22
Abstract: 992,499. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 22, 1962 [May 25, 1961], No. 19666/62. Heading H1K. In a process for alloying material to a semiconductor body, the body and alloying material are supplied to a preheated jig of large thermal capacity. Figs. 1 and 2 show apparatus for alloying pellets of impurity material to a semiconductor body. The semi-conductor body 23 is held in a graphite or steel jig 19 which is surrounded by a heater member 17. The body 23 is first placed in a carrier plate 44 (Fig. 3) which slides in a guide channel 27 extending across base-plate 1. Stamp member 31 situated in the guide channel is raised by means of lever 37 to lift the carrier plate 44 so that the semiconductor body is placed in position in jig 19 where it is retained by suction. Stamp member 31 is then lowered and another carrier plate 44 which contains an impurity pellet held in position by means of a perforated mica strip, is slid into position above stamp 31 which is again raised so that the impurity pellet engages and is alloyed to the semi-conductor body. The suction is then released so that the semiconductor body falls into position on the carrier plate 44 which is moved along the guide channel to the end position. Alloying takes place in a nitrogen or nitrogen and hydrogen atmosphere in the enclosure formed by glass tube 7. The semi-conductor may consist of silicon or germanium. Two or more pellets and/or two or more bodies may be supplied simultaneously from the carrier plate to the jig. Pressure may be applied during alloying by means of a spring associated with stamp 31.
Patent GB-1007095-A (GB)
Title: Process for the recovery of paraxylene
IPC: B01D9/00
Filed: 1962-05-22
Abstract: A two-stage crystallization of p-xylene from a mixed xylenes feed is effected by cooling in the first stage, isothermally removing from the coldest zone crystal-free mother liquor which is discarded, separating the slurry of crystals in mother liquor into mother liquor which is returned to the first stage and crystals which are melted and passed to the second stage where cooling produces a second slurry separated into product crystals and mother liquor at least part of which is recycled to the second stage, any remainder being recycled to the first stage. Crystallization is effected in scraped cylinders with conical bottoms cooled by heat-exchange and slurry is preferably removed and at least partly pumped into the bottom of the crystallizer. The first stage may be effected in a plurality of crystallizers using temperatures of - 30 DEG  to - 85 DEG  F. in the first zone(s) and - 85 DEG  to - 105 DEG  F. in the final zone with a total holding time of 4 1/2 -18 hours.  Mother liquor is removed from the final zone in an amount which, added to the product p-xylene, equals the feed weight.  The liquor is withdrawn through a micro-metallic filter with provision for back flushing to remove crystals or a scraped screen or a mini-cyclone.  The second crystallization is effected at 15 DEG  to 40 DEG  F. and sufficient mother liquor is recycled to maintain a flowing slurry. Separations are effected centrifugally at 600-1200 G. and the crystal cake dried by spinning for 30-60 seconds.
Patent GB-925849-A (GB)
Title: New cyclopentanophenanthrene derivatives and processes for the production thereof
IPC: C07J75/00
Filed: 1959-06-09
Abstract: The invention comprises 2-methylandrostanes and esters thereof, which compounds are oxygenated at C-3 and C-17 and have (a) a 2b -methyl group and/or (b) one or more double bonds at C-1, C-4 and C-6, with the proviso for condition (b) that where only one double bond is present this is not located at C-4.  Specific compounds include: -2b -methylandrostane-3,17-dione, its D 1 and D 1,4 analogues, 2-methyl- 17a -alkyl- D 1,4-androstadien-17b -ol-3-ones and their esters, 2-methyl- D 1-androsten- 17b -ol-3-one, its 17a -alkyl derivatives and their esters, 2b -methyldihydrotestosterone, its 17-alkyl derivatives, their 3b -olanalogues and esters thereof, 2-methyl- D 1,4,6-androstatrien- 17b -ol-3-one, its 17-alkyl derivatives and esters thereof, 2-methyl- 2-bromoandrostan-17b -ol-3-one, its esters and 17-alkyl derivatives, 2-methyl-17a -alkyl-2,6- dibromotestosterone and 17-esters of 2-methyl- 2,6-dibromotestosterone, the esters being derived from hydrocarbon carboxylic acids of less than 12 carbon atoms.  The invention is illustrated by 12 examples. Specifications 854,407 and 857,080 are referred to.
Patent GB-147752-A (GB)
Title: Improvements in making white lead
IPC: C09C1/16
Filed: 1920-07-08
Abstract: 147,752. Thompson, W. P. Oct. 12, 1914, [Convention date]. White lead is prepared by passing carbon dioxide which may be pure or diluted with air, together with the vapours of dilute acetic acid over unmelted anhydrous litharge such as is obtained by treating molten lead at about 400‹ C. with a mixture of superheated air and steam. The litharge is kept constantly stirred, and the process may be conducted under pressure. The mixing-chamber A consists of an horizontal cylinder fitted with a revolving shaft and blades B, and is supplied with litharge from a feed-pipe C. Carbon dioxide, pure or diluted with air, is passed into the heating-chamber D and becomes mixed with acetic acid and water vapour from the dilute acetic acid solution contained therein. By regulating a burner K, the temperature of the gaseous current is kept preferably within the limits 26-60‹ C. Unabsorbed gases escape by a pipe I, and the white lead is drawn off periodically through the shutter H. The Specification as open to inspection under Sect. 91 (3) (a) states that the quantity of water vapour present in the gases is restricted by regulating the temperature, in order to avoid the formation of white lead containing water of crystallization, which has low covering power. This subject-matter does not appear in the Specification as accepted.
Patent GB-1222727-A (GB)
Title: Materials for image reproduction
Inventor: ABBOTT TERENCE ARNOLD
IPC: G03C1/76
Filed: 1968-04-26
Abstract: 1,222,727. Printing plates. BEXFORD Ltd. 10 April, 1969 [26 April, 1968], No. 19909/68. Heading B6C. [Also in Divisions B2, C3 and G2]  A printing plate comprises a biaxially orientated polyethylene terephthalate film coated with a thin layer of polyvinyl chloride-vinyl acetate copolymer containing 3% p-chloro-mcresol in solution in methanol/acetone followed by application of typescript, markings with a ball-point pen or greasy crayon.
Patent GB-438711-A (GB)
Title: Improvements relating to double-acting two-stroke cycle internal combustion engines
IPC: F02B25/00
Filed: 1935-07-12
Abstract: 438,711. Two-stroke engines. MICKELSEN, V., and REBBECK, F. E., c/o Harland & Wolff, Ltd., Queen's Island, Belfast. July 12, 1935, No. 19921. [Classes 7 (ii) and 7 (vi)] In a double-acting twostroke engine cylinder having piston - controlled admission ports 8 and exhaust ports at the two ends, an ordinary poppet valve 20 is arranged obliquely at the piston-rod end. This valve and the other exhaust valve 11 are operated, either from the same cam 18 as shown, or by link-work from the crosshead 29.
Patent GB-588602-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/62
Filed: 1944-08-25
Abstract: 588,602. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., PEARCE, O. A., and BAKER, G. T. Aug. 25, 1944, No. 19984/46. Divided out of 588,563. Drawings to Specification. [Class 40 (iv)] [Also in Group XXXVIII] In a private automatic exchange system in which local calls are completed over finderconnector links, a plurality of special service links, e.g. for tie-line, night-watchman's, fire alarm and code calling services are provided, being brought into operation by dialling an appropriate special service number, whereupon the finder of the special service link hunts for the calling line and releases the local link. The special link circuits are mounted on separate bases arranged to be readily associate with the remainder of the switchboard, as required. A single set of allotting equipment is employed to determine which link circuit is to be used and to control the appropriate finder switch. Privileged subscribers, on dialling an appropriate conference number, are connected by relays to a common conference number and the local link is released. The apparatus described is identical with that of Specification 588,563, but the claims relate to different features. Specifications 391,151, 450,019, 571,811 and 571,994 also are referred to.
Patent GB-299518-A (GB)
Title: Improvements in or appertaining to modulated carrier wave signalling systems
IPC: H03C1/52
Filed: 1927-07-29
Abstract: 299,518. Standard Telephones & Cables, Ltd., (Western Electric Co., Inc.). July 29, 1927. Addition to 269,251. Thermionic modulating and detecting apparatus; wired wireless systems.-The input circuit of a push-pull valve modulator or detector includes an impedance which biases the grids of the valve to an extent dependent on the amplitude of the pure carrier wave applied from a separate source to those grids. As shown in Fig. 1, the impedance consists of a resistance 17 shunted by a condenser 18 and connected in the common grid return lead of the valves 11, 12 in series with the transformer 16 supplying the carrier wave from the source 15. The bias adjusts itself so that the peaks of the input waves carry the grid slightly positive, with the result that grid current flows through the resistance 17 to maintain the bias. If the carrier amplitude increases beyond normal, more grid current flows momentarily and the bias increases. The condenser 18 smooths the grid current, and also bye-passes the carrier wave. Signal currents are applied to the grids in phase opposition by a transformer 13, and the resultant modulated output is taken from a divided transformer 14 through a filter 22, which suppresses all currents except the sideband to be transmitted. For this side-band the input impedance of the filter is matched with that of the valve, whilst for harmonics &c. the input impedance is substantially zero. The modulation is dependent on the non-lincarity of the plate characteristic of the valves. The tendency of the resistance 17 to produce grid modulation effects is reduced by the condenser 18, and also by connecting a condenser 24 and resistance 23 across the secondary of the transformer 13. In a modification suited for wired wireless systems using a comparatively low frequency carrier, the carrier wave and the signal wave are applied jointly through the transformer- 13, and the output transformer is in the common plate, return leads, the plates being directly connected. When the system is employed as a detector or demodulator, a modulated carrier orside-band is applied to the transformer 13, and a low frequency signal is transmitted through theoutput transformer 14, the impedances of the filters &c, being modified to suit the new frequency ranges.
Patent GB-1109532-A (GB)
Title: Conveying slab-shaped articles
IPC: B65G51/03
Filed: 1966-05-06
Abstract: 1,109,532. Conveying by buoyancy. TOSAGGO RESEARCH & DEVELOPMENT INSTITUTE (PROPRIETARY) Ltd. 6 May; 1966 [6 May, 1965], No. 20298/66. Heading B8A. The base 11 of a conveyer trough for slabshaped articles such as cigarette cartons is provided with two rows of jets 16, the rows being  parallel to corrugated side walls 10 and the jets in each row being inclined towards the other row. The trough is mounted either on a chamber 12 to which compressed air is fed or in the bottom of a chamber. (14), Fig. 2 (not shown), which is connected adjacent its top to a source of suction. The articles are conveyed along the trough either by inclining the trough in the direction of travel at a small angle, e.g. twenty minutes, or by providing a horizontal trough with propelling jets-located between the two rows of cushioning jets and inclined towards the direction of travel. Mechanical pushers at intervals along the length of the conveyer may also be provided.
Patent GB-1027322-A (GB)
Title: A pulse generator
IPC: F02P3/08
Filed: 1964-05-15
Abstract: 1,027,322. Pulse generators. SIEMENSSCHUCKERTWERKE A.G. May 15, 1964 [May 17, 1963], No. 20461/64. Heading H3T. [Also in Divisions F1 and H1] A field plate, whose resistance is a function of the magnetic flux passing through it, is used in combustion with a magnet and a shunt as a pulse generator for a vehicle ignition system. The arrangement is such that relative movement between the magnet, the plate and the shunt causes the flux from the magnet to pass mainly through the plate and mainly through the shunt, in alternation. The magnet 5 is cruciform and is rotated by gearing 2 driven by the engine whose ignition is to be controlled. The shunt 7 is a cylindrical shell with a pair of apertures so spaced that when one magnet pole is adjacent one of them the opposite pole is adjacent the other. A yoke 6 has its links aligned with these apertures and the field plate 8 occupies a gap in this yoke. The field plate is connected as shown in the input circuit of a solid state controlled rectifier 10, and a pulsed voltage output, whose waveform is depicted in Fig. 3 (not shown), is coupled by the transformer 13 to the distributer head 3. The controlled rectifier may be replaced by a semi-conductor thyratron or thyristor, a gas-filled rectifier, a switching transistor or transistor cascade.
Patent GB-867357-A (GB)
Title: Improvements in or relating to artificial tissue materials for the human body
IPC: A61K6/083
Filed: 1958-06-27
Abstract: A moulding composition comprises a polymerizable mixture of (i) a particulate copolymer comprising one or more C2-C4 alkanol esters of methacrylic acid and one or more C2-C12 alkanol esters of acrylic acid and (ii) a monomeric polymerizable fluid containing a mixture of C2-C18 alkanol esters of acrylic and/or methacrylic acid.  In addition to the above components the copolymer and/or the polymerizable fluid may comprise a cross-linking agent, e.g. an ester of acrylic and/or methacrylic acid with a polyhydric alcohol.  Also present may be a plasticizer, e.g. esters of acetyl citric, phthalic, sebacic and myristic acid, and a polymerization catalyst, e.g. benzoyl peroxide.  The compositions are polymerized to form dental protheses and artificial tissue material for the human body.  In the example a copolymer of isopropyl methacrylate, ethyl and amyl acrylates and diglycol dimethacrylate is formed into a paste with a mixture of butyl acrylate, ethyl and octyl methacrylates and glycol dimethacrylate.
Patent GB-170634-A (GB)
Title: Improvements in and relating to the insulation and support of thermionic valve electrodes between which a high potential difference exists
IPC: H01J19/50
Filed: 1920-07-10
Abstract: 170,634. Macrorie, A. K., Airey, H. Morris-, Shearing, G., and Mullard, S. R. July 10, 1920. Vacuum tubes.-In means for supporting and insulating the electrodes of a thermionic valve, a support K, Fig. 1, is secured to a bulb by a rod R, enclosed within a tube S and covered by a flange T, the support and other parts being of insulating material such as silica. In another arrangement, hollow flanged tubes F, G, Fig. 3, carrying an anode and a grid respectively, are arranged around silica rod supports L attached to concentric rings H, K, which are rigidly joined by U-shaped silica rods V and tubes Q. The ring H is fixed to the bulb by fusion at the parts P. The rings H, K may be replaced by triangular supports separated by rods with insulating flanges, or by rods with tubes and flanges as shown in Fig. 1. In another arangement, the flanged tubes F, G are mounted on a single, ring or triangular support. Specifications 170,096 and 170,097 are referred to.
Patent GB-824575-A (GB)
Title: Improvements in seats with adjustable seat backs and detachable armrests
IPC: A47C1/024
Filed: 1957-07-02
Abstract: 824,575. Seats; armrests. AEROTHERM CORPORATION. July 2, 1957 [Feb. 1, 1957], No. 20813/57. Class 52(2) The armrest 4 of a reclinable aircraft seat is slidably mounted on an interlocking track with which the seat frame 2 is provided and which extends fore and aft of the seat, and houses mechanism including an axially movable member 10 with a knob 12 which engages a catch 14 on the seat back 8 so that when the back is tilted forward beyond its normal range of adjustment the catch 14 becomes disengaged to allow the armrest to be detached from the frame. The armrest also carries recline locking mechanism 6, air manifold 16 with outlets 18 controlled by buttons 20 and other switches 22. 24.
Patent GB-238884-A (GB)
Title: Improvements in card indexes
IPC: B42F17/28
Filed: 1925-08-19
Abstract: 238,884. Engstr÷m, D. A. Aug. 23, 1924, [Convention date]. Endless and continuous band files; cards. - The cards of a card register are secured together so as to form a continuous band capable of being made into a roll and wound from one roller to another on shafts mounted in a casing, inspection and marking of the cards being allowed by an opening in the top of the casing. The cards may be secured together by the provision on the edges of interlocking tongues 1 and holes 2, or by connecting the cards together by means of staples. Alternatively, the edges of the cards are inserted in flexible bands formed, preferably, of elastic strips united at their outer edges and connected by transverse stripe. Slots 11, 12 are provided in the casing 10 to receive the shafts 6, 7 on which the bands are rolled, crank handles 8, 9 being provided thereon, together with a support 13 for the cards and an inspection opening 14 in the lid 16. Movement of the cards may be effected by a small electric motor, and devices may be provided for indicating when the required card is nearing the reading position. When the cards are made into a roll, this may be sealed and stored.
Patent GB-1343059-A (GB)
Title: Apparatus for controlling and adjusting a processing yarn tension on a yarn winder
IPC: H02P29/00
Filed: 1971-04-19
Abstract: 1343059 Tension control in yarn winding TORII WINDING MACHINE CO Ltd 19 April 1971 [19 Oct 1970] 20832/71 Headings DID D1F and D1J Yarn E fed to a yarn winder from a constant speed source is threaded about guides 20, 14, 23, 15, 24, 16 and 22 in turn. Guides 20, 23, 24 and 22 are fixed while guides 14, 15, and 16 can move on arm 13 which is pivoted to arm 7 in such a way as to be movable from the position shown to the position denoted by line Y'Y'. This movement is in response to changes in yarn tension and via sprocket 47, chain 36, lever 37 and chain 39 operates on a device 4, e.g. a variable transformer, which controls the winding speed to counter yarn tension variation. Feeler 44 of micro switch 43 when activated by lever 37 disconnects the transformer from the drive motor. Micro-switch 43 may also be acted on by handle 41. In the event of a complete loss of tension arm 13 falls to its lowest position, also guide 22 rises which stops winding and activates a sucking device 17 to entrain the slack yarn. Arm 13 may be clipped in its highest position to facilitate threading up.