baber/WOPTO huggingface dataset:
Patent GB-1299288-A (GB)
Title: Improvements in or relating to pick-up tubes
Inventor: BANKS PETER BALDWIN
IPC: H01J31/38
Filed: 1970-07-30
Abstract: 1299288 Image pick-up tubes ENGLISH ELECTRIC VALVE CO Ltd 2 July 1971 [30 July 1970] 36870/70 Heading H1D An image pick-up tube including a photoconductive target T such as a lead monoxide target, is provided with means for introducing light into the tubular anode G3 in an even manner round its circumference, the inner surface of the anode having light scattering properties so that it diffuses light over the rear surface of the target in order to increase dark current and thereby reduce build-up and decay lag at low light level operating conditions. The inner surface of the anode G3 is preferably roughened by chemical etching or by shot blasting. In one arrangement, Fig. 2, lamps 12 are arranged around the outside of the tube, and the envelope is provided with frosted portions 13 and 14 to guide the light; an aluminium disc R with a matt surface reflects light through the aper-  tures 7 in the tapered portion of the anode. In  another arrangement, Fig. 1 (not shown), the light source is internal and light is reflected from the envelope into apertures 7 via a diffuser ring of ground fused silica. In a modification, Fig. 3 (not shown), the diffuser comprises a silica ring arranged between two different diameter portions 4 and 5 of the anode. In a further arrangement, Fig. 4, light passes into the anode through perforations in a metal disc 16 which joins the two anode portions 4 and 5. In order to reduce the illumination at the centre of the target and thereby promote a more uniform dark current, aluminium may be evaporated from a position corresponding to the centre of the target through the perforated disc on to the diffuser D. If d is the diameter of the holes in the disc 16 the spacing a should be such that a/d=2(b/c), where b and c are the dimensions shown. The lamp 8 is preferably in parallel with the cathode heater H, but may alternatively have its own input connections. The envelope is coated with bands 9 and 10 of black and white paint the relative width of which can be varied in manufacture to adjust the amount of light reaching the diffuser ring D. A coating 11 of black paint prevents stray light reaching the front of the target.
Patent GB-1362377-A (GB)
Title: Process for the preparation of dl-methionine
IPC: C07C319/14
Filed: 1971-08-05
Abstract: 1362377 DL-methionine DEUTSCHE GOLD - UND SILBER - SCHEIDEANSTALT 5 Aug 1971 [12 Aug 1970] 36893/71 Heading C2C DL-methionine is prepared by reacting acrolein with methyl mercaptan, hydrocyanic acid, ammonia or a source of ammonia or ammonium ions, and CO 2  or a source of CO 2  or carbonate ions in a single stage in the presence of a reaction medium selected from water, an organic solvent or an aqueous organic solvent to add CH 3 SH and HCN to the acrolein simultaneously with formation of a hydantoin intermediate and hydrolysing said intermediate. Sources of NH<SP>+</SP> 4  specified are (NH 4 ) 2 CO 3 , NH 4 Br, NH 4 Cl, (NH 4 ) 2 SO 4 , NH 4 CN, NH 4 HCO 3 , CH 3 COONH 4 , NH 2 CO 2 NH 4 . Sources of CO<SP>=</SP> 3  specified are (NH 4 ) 2 CO 3 , NH 4 HCO 3 , Na 2 CO 3 , NH 2 CO 2 NH 4 . The preferred temperature of the first stage reaction is 30-200 C.
Patent GB-1496804-A (GB)
Title: Supported laryngoscopes
IPC: A61B1/267
Filed: 1975-09-09
Abstract: 1496804 Supported laryngoscopes RICHARD WOLF GmbH 9 Sept 1975 37139/75 Heading A5R A supported laryngoscope consists of a barrel 1 which is pivotable and lockable in relation to a handle 2 about a shaft 3 extending transversely of the barrel, the handle being in turn connected to a rod 6 which is supported by a bridge 10. The bridge is securable to at least one side of an operating table 12 the bridge being vertically and longitudinally adjustable with respect to said table. The handle 2 is provided with a hand-operated wheel 4 which when turned either causes a rack to act on a sector gear on shaft 3, or causes a rod carrying a worm to act on a worm-wheel mounted on the shaft to pivot the barrel 1 in relation to the handle. The bridge has a holder 8 adjustably mounted thereon and having a ball - joint bearing for a ball end 7 of the rod which can be locked in the bearing. Holder 8 may carry an instrument tray 13. Handle 2 may be longitudinally movable and lockable with respect to rod 6.
Patent GB-1446867-A (GB)
Title: Medicament dispenser
IPC: B05B11/00
Filed: 1973-08-06
Abstract: 1446867 Spray producers RIKER LABORATORIES INC 6 Aug 1973 [7 Aug 1972] 37257/73 Heading B2F [Also in Division F1] An atomiser comprises a liquid container 17 incorporating a reciprocating pump 24 of the oscillating piston type including diagonal seals 32 controlling an inlet 25 and discharge to an aperture 26, and an air pump comprising a cylinder 42 slidable on the container 17 and discharging air to an outlet 19 where it meets the liquid from the aperture 26 to discharge a spray to a nozzle 12. The cylinder 45 is connected to an actuator 36 for the piston 31 and includes cam surfaces for causing the piston to reciprocate and oscillate; the actuator is slidable in a bore 23 in the container and includes an air flow passage 41. The cylinder 45 is connected to an actuator sleeve 58 with lost motion and a spring 55 is disposed between flanges 56, 48 on the sleeve and cylinder. Spring loaded detents 63, 64 in a bore in the head of the cylinder 45 engage in slots 60, 61 in the sleeve 58 and in the initial operative position engage a shoulder 68 on the housing 50. Pressure on the head 59 of the sleeve 58 first compresses the spring 55 until the upper ends of the slots 60, 61 release the detents 63, 64, thereafter the pump and compressor pistons are actuated.
Patent GB-1007383-A (GB)
Title: Improvements in hydraulic or pneumatic reciprocating motors
IPC: E02D7/10
Filed: 1963-09-23
Abstract: 1,007,383. Step-by-step lifting Jacks. J. R. JOHANSSON. Sept. 23, 1963 [Sept. 28, 1962], No. 37280/63. Heading B8J. [Also in Divisions E1 and F1] A jack driven by an hydraulic or pneumatic reciprocating motor (see Division F1) comprises a latch 70 carried by the reciprocating motor piston 53<SP>1</SP> and engageable with a lifting rack 72 slidable relative to a support 73, a locking latch 75 also being mounted on support 73.
Patent GB-1336790-A (GB)
Title: Semiconductor device with pressure contacts
IPC: H01L23/48
Filed: 1971-08-09
Abstract: 1336790 Semi-conductor devices BROWN BOVERI & CO Ltd 9 Aug 1971 [11 Aug 1970] 37346/71 Heading H1K In a semi-conductor device having two pressure pads bearing on a semi-conductor body via two ductile metal layers, the ductile layers have integral projections which engage the edges of the pressure pads. As shown, Fig. 2, a semi-conductor body 1 of Si or Ge having at least one PN junction which emerges at the edge which is double bevelled and coated with a layer 11 of epoxy resin, is contacted by two pressure pads 4, 5 of Cu, Cu alloy, Mo, W, or Ta and ductile Ag members 2, 3 which are dish shaped so that they engage the edges of the pads to locate the body between the pressure pads. The ductile members are secured to the semi-conductor body by portions 10 of elastic synthetic material such as silicone rubber. The semi-conductor device may be a thyristor in which case one pressure pad and its associated ductile member are provided with central apertures through which the control electrode extends. Preferably at least the other ductile member is also provided with an aperture to ensure pressure contact symmetry. The surfaces of the semi-conductor body may be provided with metalized layers 6, 7, e.g. Ni, which may be guilded, and mention is made of the use of sintered contacts. The faces of the pressure pads bearing on the ductile members may be hard chrome plated or nickel plated and polished.
Patent GB-1496928-A (GB)
Title: Sliding clasp fasteners
IPC: A44B19/30
Filed: 1976-08-26
Abstract: 1496928 Sliding clasp fasteners TEXTRON Ltd 26 Aug 1976 [11 Sept 1975] 37422/75 Heading E2S An automatically locking slider 10 has a body 11 with a passage 12 for the rows of fastener elements, and a cap 13 which is symmetrical about a laterally bisecting plane, and is pivotally mounted on body 11 by the engagement of lugs 15 in recesses 19 defined by shoulders 20, resilient arms 16, 17 of the cap engaging grooves 21, 22 such that arm 16 urges arm 17 through the open end of groove 22 to enter passage 12 and engage and lock the fastener elements. Pull member 23 raises cap 13 against spring arm 16 to disengage arm 17. In another form, Fig. 5, a separate spring arm member 36 has arms 37, 38 urged into grooves 40, 41 by a spring 35 mounted in the cap 30. Pull-bar 43 engages inclined portions 39 of spring 36 to disengage the locking arm.
Patent GB-1150295-A (GB)
Title: Improvements in Tyres.
IPC: B60C11/01
Filed: 1966-08-22
Abstract: 1,150,295. Vehicle tyres. DUNLOP CO. Ltd. 22 Aug., 1966 [7 Sept., 1965], No. 37468/66. Heading B7C. A vehicle tyre tread comprises circumferential ribs 10 each formed with generally transverse slots 12, the opposite faces of each slot being interengaged such that relative movement therebetween radially of the tyre is substantially prevented. The faces may be sinuous in cross-section or one face may be formed with diamond-shaped facets (17) (Fig. 3, not shown), and the faces may be bonded together at one or more positions. Each slot opens into a channel 14 divergent in the direction of the adjacent sidewall. A shoulder safety rib 19 may be formed with a surface 20 shaped so as to divert fluid ejected through the channels 14 either radially or circumferentially of the tyre.
Patent GB-378541-A (GB)
Abstract: 378,541. Coin &c. freed apparatus. GLEDHILL, A. H., Trinity Works, Halifax, Yorkshire. May 18, 1931, No. 14607. [Class 27.] Receipts, issuing.-The deposit of a cash bag or other article in a safe is accompanied by the release of the operating shaft of an autographic recorder so that a voucher may be issued and a record kept of the receipt. The bag is placed in a scoop A which then rocks to let the bag glide down a shoot e<1> and past a non-return gate e<3> to a platform B pivoted at b. The platform thus tilts to deposit the bag in the safe below and through a pivoted dog g<3> frees an arm g<8> of a bell-crank lever, the other arm G of which consequently moves clear of a lug g on the shaft c<3> of an ordinary autographic recorder. The operator having effected the necessary record turns the shaft to issue a voucher and a cam g<8> restores the bell-crank lever whereupon the platform B returns to normal position by the action of a weight b<1>.
Patent GB-1165226-A (GB)
Title: Production of (4-Hydroxy-3,5-Dialky-Benzyl)-Carboxylic Acid Esters
IPC: C09K23/00
Filed: 1967-08-17
Abstract: 1,165,226. Stabilized oils. DEUTSCHE ADVANCE PRODUKTION G.m.b.H. 17 Aug., 1967 [17 Aug., 1966], No. 37970/67. Headings C5C and C5F. [Also in Divisions C2 and C3] Mineral oil and olive oil are stabilized against the action of oxygen, light or heat by the addition of an ester of the formula where R 1  and R 2  are the same or different straight chain or branched alkyl groups of which at least one has from 1 to 6 carbon atoms, R 3  is -CN or -COOR 4  and R 4  is a straight chain, branched or cyclic alkyl group or aryl group which may contain one or more aryl substituents and/or one or more thioether and/or ether linkages having a total including substituents of from 1 to 20 carbon atoms. Some mineral oil compositions described also include tri - nonylphenylphosphite and some olive oil compositions dioctyl phthalate.
Patent GB-1260845-A (GB)
Title: Cooking morsels of food
Inventor: DALGLEISH JAMES MCNAIR
IPC: A23L19/18
Filed: 1968-08-08
Abstract: 1,260,845. Processing food morsels. GOLDEN WONDER Ltd. 7 Nov., 1969 [8 Aug., 1968], No. 37985/68. Heading A2E. [Also in Divisions A4 and F4]  Surface water is removed from water impregnated morsels of food before the morsels are dehydrated in hot oil, wherein the morsels are passed downwards through a bath of cold oil to cause the surface water to separate from the morsels, said water being removed from the bottom of the bath. The morsels thus treated are then passed to a cooking apparatus which comprises an upwardly extending dehydration section having a bottom inlet for the treated morsels and connecting at its top end with a cooking section, the dehydration section being provided with hot oil at a temperature such that water in the morsels is turned into steam, the morsels and the steam rising in the dehydration section to enter the cooking section where heat from the steam is used to cook the morsels. The process may be carried out in the apparatus shown in Fig. 1 wherein water-impregnated morsels of food are passed through cold oil in section 10 to remove surface water which is drained off through the well 16. Oil, heated at the heat exchanger 25 is injected via 18 to the dehydration section 13 up which the treated morsels are passed from section 10. After dehydration, the morsels are passed into cooking section 14 which includes a spiral elevator 28 which is given a high-frequency, low amplitude oscillation about its vertical axis via the mechanism in housing 29. The spiral flight of the elevator 28 co-operates with the spiral wall vane 30 to slow down the rise of the steam through the section 14. The top of the elevator flight extends through a side outlet 31 for removal of the cooked morsels. The morsels are preferably of potato.
Patent GB-929965-A (GB)
Title: Parenteral solution equipment and method
IPC: A61J1/14
Filed: 1959-11-10
Abstract: 929,965. Parenteral liquid containers. BAXTER LABORATORIES Inc. Nov. 10, 1959 [Nov. 10, 1958], No. 38016/59. Class 81 (2). A collapsible parenteral fluid container 10, which is flexible and translucent, has fluid inlet and outlet ports 45, 56 and is housed in a rigidwalled but collapsible receptacle 11 which when uncollapsed has an interior shape and size approximating to the shape and size of the container when filled. The collapsible container 10 has tabs 36, 37 along opposite side edges to which a flap 41, having pockets 42 for sample tubes 43, and a flap 40 are secured, respectively. The receptacle 11 is made from two sheets 11a, 11b of vinyl plastic, each sheet forming two receptacle walls and one sheet having tabs 27, 28 which engage slots 23, 24 of the other sheet. The receptacle is positioned around the container, the joins between the sheets being effected through slots 41a between the container and the flaps. To complete the assembly, the pocketed flap is wrapped over two walls of the receptacle and is covered by the other flap, a tab 40a of which is tucked into a slot 41a. Portions 45, 56 projecting from the exposed top wall 17 of the container are connected respectively to an inlet tube 55 having an end plug 57, which is pierceable by a hypodermic needle, and a sheathed outlet fitting 44 having a manipulatable ball valve. The container is made from two peripherally united superposed hexagonal sheets of synthetic plastic having projections which form the tabs 36, 37 and the portions 45, 56. Each sheet forms two sides of the container, the top and bottom walls being formed by joining each sheet to itself along lines 34 and excess material being cut away from the top wall and formed into a hanger 76 at the bottom wall. The joints along lines 34, and those formed between the sheets form diagonal reinforcing ribs across the top and bottom walls. The receptacle 11 has an upstanding tab 28 which before filling is folded at an angle to one side but which is pivoted into the plane of that side when filling of the container is complete. The receptacle is removed when the container is full.
Patent GB-643277-A (GB)
Title: Improvements in fluid pressure systems
IPC: F15B20/00
Filed: 1946-12-31
Abstract: 643,277. Pneumatic single-stroke apparatus. PETERS & CO., Ltd., G. D., SWAIN, L. W., and BASKERVILLE, R. Dec. 31, 1946, No. 38109. [Class 8(ii)] [Also in Group XXV] In a fluid pressure system comprising a movable assembly having two areas to one of which pressure is continuously applied and to the other of which pressure is intermittently applied through control means to overcome said continuously applied pressure, a safety valve is provided which is adapted, on failure or cessation of the continuously' applied pressure, automatically to reduce the pressure capable of being brought to bear on the other pressure area. As applied to a pneumatic system for vehicle doors, one branch of a constant pressure line 6 is connected to the small piston cylinder of a differential piston engine 1 through an exhaust valve 7 adapted to vent said cylinder upon the application of the emergency brake, and a pipe line 8. Another branch is connected to the large piston cylinder through a safety valve 9 and an electro-pneumatic control valve 10. Pressure is thus normally applied continuously to the small piston to maintain the door closed, while the latter is opened when air is supplied to the large piston cylinder by means of the control valve. The safety valve, which is constructed according to Specification 643,319, [Group XXIX], is also connected by a pipe line 12 to the line 8 and permits uninterrupted passage of air to the control valve when the pressure in the line 8 is equal to the pressure in the line 6. If the exhaust valve opens the line 8 to the atmosphere, the safety valve operates to close its branch of the line 6 and to allow the air thus trapped in the line between the valves 9 and 10 to vent through the line 12 to a residual pressure low enough to ensure safe operation of the door by means of the control valve with the exhaust valve open.
Patent GB-375271-A (GB)
Title: Improvements in or relating to photo-electric cells
IPC: H01J40/06
Filed: 1930-12-18
Abstract: 375,271. Photo-electric cells. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Dec. 18, 1930, No. 38184. Convention date, Jan. 13. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. [Class 39 (i).] In a hydrogen-filled cell an alkali metal forming the photo-electric electrode is saturated with hydrogen during manufacture of the cell so that subsequent absorption of the gas by the electrode is prevented. The alkali metal may be deposited on a layer of other metal such as silver. The pressure is preferably 1 mm. Characteristic curves are given.
Patent GB-321870-A (GB)
Title: Improvements in or relating to coin-controlled vending machines
IPC: G07F11/24
Filed: 1928-12-27
Abstract: 321,870. Stanton, G., and Greenwall, M. Den. 27, 1928. Delivery of articles stored in piles.-:llovement of a handle 28 to one side or the other from a mid-position, with the aid of a coin acting as a mechanical connection, delivers an article: selectively from one or other of the piles' 11, 12. The actual delivery is effected by sliding table-, which are moved by one of the arms' 4;1, 42 according to the direction of rotation of the shaft 18. The handle 28 is spring-mounted as shown in Fig. 6 and is fastened to the drum 27, while drum 20, carrying the coin-receiving lever!-,', is fastened to the shaft 18. Coin action, mechanical-connection.-The coin is received between the ends of the bell-crank levers 24, 25 which have a pin-and-slot connection with the cam groove 38, Fig. 4 in the fixed disc 19. The hand lever bears on to the coin and transmits rotation to the drum 20 and shaft 18, at the same time moving the levers 24 25 along the cam groove 38. At the end of the stroke, one of the levers is tilted outwards bv the formation of the groove 38 to release the coin which is then removed by one of the spurs 29, 30 on the hand lever. Spring-mechanism (not shown) then restores the shaft 18 to its initial position.
Patent GB-350984-A (GB)
Title: Process of taking and copying photographic pictures rich in contrasts
IPC: G03C5/16
Filed: 1929-12-13
Abstract: 350,984. Photographic processes. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Dec. 13, 1929, No. 38266. Convention date, Dec. 21, 1928. Void [Published under Sect. 91 of the Acts]. [Class 98 (ii).] Colour-sensitive layers; reproducing opaque originals by contact printing.-In a process of taking or copying photographs, pictures rich in contrasts are produced by employing layers sensitized for infra-red rays, and exposing them to light which contains only red and infra-red rays. The layers may have a maximum of sensitivity lying between wave lengths of 700 and 800 ÁÁ, and the light employed may be passed through a filter which passes only rays of wave length not less than 620 ÁÁ. The process may be used for copying by reflection, and may be combined with other processes such as toning, intensifying, &c.
Patent GB-1046418-A (GB)
Title: Preparation of unsaturated polyesters
IPC: C08G63/58
Filed: 1964-09-18
Abstract: Unsaturated polyesters are made by (a) heating an alpha-beta unsaturated dicarboxylic acid or anhydride thereof in the presence of an alkaline catalyst until a product of acid number 20 to 130 is obtained, (b) treating the reaction product with a strong non-oxidizing agent in an amount more than sufficient to neutralize the catalyst and (3) heating the neutralized product at 200 DEG  to 240 DEG  C.  Suitable catalysts are the alkali metal hydroxides and suitable acids are hydrochloric, trichloroacetic, toluene sulphonic and phosphoric acids.  The final product may be (i) treated with an alkylene oxide to reduce the acid number to 10 to 40 or (ii) treated with an alkali metal halide and then heated to 120 DEG  C.  Suitable alkylene oxides are ethylene-, propylene- and butylene oxides and suitable unsaturated acids are maleic and fumaric acids.  Up to 90 mol. per cent of the unsaturated acids may be replaced by other dicarboxylic acids, e.g. phthalic, succinic, adipic, glutaric, octenyl succinic, diglycollic, thiodiglycollic, tetrahydrophthalic and tetrachlorophthalic acids and Diels-Alder adducts of cyclopentadiene.  If two acids are used, these may be reacted simultaneously or sequentially with the alkylene oxide.  Reaction may be effected in the presence of an initiator, e.g. water, ethylene glycol, propylene glycol, maleic acid or fumaric acid.  An example describes reacting maleic anhydride, phthalic anhydride, propylene oxide and a small amount of fumeric acid and water in the presence of lithium hydroxide.
Patent GB-883243-A (GB)
Title: Process for the production of carboxylic acids
Filed: 1959-11-11
Abstract: Carboxylic acids are obtained by initially reacting an olefine with carbon monoxide in the liquid phase at elevated pressure and at a temperature below 100 DEG C. without the addition of water and in the presence of a catalyst consisting of a boron fluoride-water complex containing more chemically combined water than monohydroxyfluoboric acid but not more than 1 mol of water per mol of monohydroxy fluoboric acid and then adding water in not more than the stoichiometric amount required to form the acid whereby the carboxylic acid separates out.  Preferred olefines are those having at least 4 carbon atoms in the molecule, and especially those branched at the double bond, e.g. isobutene, 2-pentene, 2-methyl-2-butene, 2-methyl-1-pentene, and 2-ethyl-1-hexene; also dodecene and isododecene.  Preferred reaction temperatures are from -50 DEG C. to 30 DEG C. and suitable pressures are from 100-600 atmospheres, preferably 100 to 300 atmospheres.  Examples are given for the production of (1) a mixture of C5-, C9- and C13- acids from isobutene; (2) 2,2-dimethylbutyric acid and C11 dimer acids from 2-methyl-1-butene; (3) 2,2-dimethyl valeric acid and C13 acids from 2-methyl-1-pentene; (4) cyclohexane carboxylic acid, methyl cyclopentane carboxylic acid and C13 acids from cyclohexene; (5) branched C15 acids and C29 acids from n-tetra-1-decene; (6) 2,2-dimethyl butyric acid, 2-methyl valeric acid, 2-ethyl-butyric acid and some C11 acids from a C5 fraction obtained by thermal splitting of paraffin wax and comprising 80% of monoolefines mainly 1-pentene; and (7) C10 acids and some C19 acids from trimeric propene.  In each case the catalyst used has the composition (H3O)(BF3OH), the catalyst used in (6) being in the form of the hydronium salt (H3O)+ in the form of their alkali metal salts and the catalyst after separation may be re-used in subsequent processes.