baber/WOPTO huggingface dataset:
Patent GB-905657-A (GB)
Title: Method of stressing the surface of a sample of vitreous silica
Inventor: JACK KENNETH HENDERSON
IPC: C03C23/00
Filed: 1959-12-08
Abstract: 905,657. Stressing silica. THERMAL SYNDICATE Ltd. Dec. 7, 1960 [Dec. 8, 1959  June 22, 1960], Nos. 41644/59 and 21817/60. Class 56.  The surface of a sample of vitreous silica is stressed by heating the sample in an atmosphere  having a partial pressure of water vapour which  is in marked dis-equilibrium with the constituent water content of the sample. Examples are as follows:-heating low-constituent water content silica in pure steam at 850‹ C. for 18 hours giving compressive strain; heating moderate constituent water content silica at 1000‹ C. for several hours in an atmosphere at a higher partial pressure giving extensive strain and heating high constituent water content silica in  a substantially dry atmosphere for several hours at 1000‹ C., giving a compressive strain. The first Provisional Specification also includes the subject-matter of Specification 905,658.
Patent GB-1311175-A (GB)
Title: Emergency ventilation apparatus
IPC: F24F11/00
Filed: 1970-09-02
Abstract: 1311175 Ventilators H BAUS 2 Sept 1970 [3 Sept 1969] 42024/70 Heading F4V A ventilator for mounting in a wall opening comprises a casing having an inlet aperture and an outlet aperture and a pivotably mounted flap which is normally held in a position closing one of the apertures by a releasable retaining device actuated by electrical means supplied with current from the same source as the building air conditioning plant. In the form shown, the retaining device consists of a piston 10 connected to the flap 15 and slidable in a fixed cylinder 8 which is fed with compressed air through a pipe 17 by a pump. The pump is connected to the same electricity supply as the air conditioning plant and in the event of plant breakdown the compressed air flow is ceased and the flap opened by a spring 18. In another embodiment, the retaining device consists of an electronagnet and, if the material of the flap is non- magnetic, an armature is secured to the flap. The flap may open by gravity, optionally with the assistance of a spring. A filter may be provided in the casing. The casing is made of a light metal alloy. The flap 15 may be provided with a bolt to effect permanent closure of the corresponding aperture, if required.
Patent GB-1336053-A (GB)
Title: Luminescent materials
IPC: C09K11/66
Filed: 1971-09-09
Abstract: 1336053 Luminescent materials and uses thereof PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 9 Sept 1971 [12 Sept 1970] 42098/71 Heading C4S A luminescent alkaline earth germinate is'of formula Ca x Sr y D p Ge 2-q Si q O 4+x+y+p  in which D is Pb and/or Mn activator, up to 5 atom per cent of Ca and/or Sr may be replaced by Ba and wherein 1À60#x+y+p#2À04; 0À15#x/y#3À00; 0À005#p#0À15; 0#q#1À25. e.g. 1À80#x+y+p#2À0; 0À6#x/y#1À60; 0À01#p#0À05 and 0À25#g #1À0 (e.g. 0À5#q#0À8) or 1À9#x+y+p#2À0; 0À33#x/y#1À0; 0À01#p#0À05. When D is lead, 0À50#x/y #3À0 for example and when D is Mn, 0À15#x/y#1À6 and 0 #g#0À20. The material may be included in a luminescent screen and in a mercury vapour discharge lamp with other phosphors. Emission maximums are 330 and 610 nm. with Pb and Mn respectively with no U.V. band, and U.V. and electron excitation is instanced. The 330 nm. emission is narrow and suitable for photochemical processes such as hardening lacquers. An excess of germanium oxide to that in the luminescent phase is stated to be allowable and a q value > 1 introduces other phases to the basic CaSrGe 2 O 6  structure. Many examples are described with particular concentrations. The starting oxides or compounds producing oxides on heating, may be heated in nitrogen at between 1000‹ and 1200‹ C., cooled, and reheated at 1100‹ C. to produce for example Ca 0 . 975 Sr 0 . 975 Pb 0 . 03 Ge 1 . 25 Si 0 . 75 O 5 . 98  with emission as in Fig. 1 (not shown). Other examples prepared include Ca 0 . 99-0 . 5p Sr 0 . 99-0 . 5p Pb p Ge 2 O 5 . 98  with double firings of 1050‹ and 1075‹ C. respectively; Ca x Sr x Pb 0 . 03 Ge 2 O 4 . 03+2x  with three firings at 1075‹, 1100‹ and 1125‹ C. and similarly Ca x Sr 1 . 95-x Pb 0 . 03 Ge 2 O 5 . 98 ; preparations are described also for Ca 0 . 975 Sr 0 . 975 Pb 0 . 03 Ge 2-9 Si 9 O 5 . 98 ; Ca 0 . 99-0 . 5p Sr 0 . 90-0 . 5p Mn p Ge 2 O 5 . 98 ; Ca x Sr 1 . 96-x-  Mn 0 . 02 Ge 2 O 5 . 98  (fired four times) of emission as in Fig. 2 (not shown) on U.V. incidence, emitting less radiation above 650 nm. than the known Sn activated SrMg orthophosphate. At high Mn contents the Pb band is greatly suppressed.
Patent GB-1018858-A (GB)
Title: Improvements relating to protection of circuits for cathode-ray tubes and other electronic devices
Inventor: HORLOCK ERIC JAMES
IPC: H01T4/08
Filed: 1964-10-16
Abstract: 1,018,858. Discharge tubes. THORNA.E.I. RADIO VALVES & TUBES Ltd. Oct. 16, 1964, No. 42393/64. Heading H1D. An air spark gap for protecting the external circuit is provided in the base of a cathode-ray tube, the spark gap being provided between one terminal pin and an earthing electrode formed in a cavity enclosed within the base. As shown, the earthing electrode in the form of a tag 13 is inserted in a slot 30, milled or moulded in the flange 12 of the base, to leave two totally enclosed air spaces 25 between the tag and the terminal pins 14, 15. Pin 14 is connected to the first anode of the electron gun of the tube and pin 15 to the focusing electrode. The second and final anodes are connected together and to the internal conducting coating of the tube. This coating co-operated with an external earthed coating to form a capacitor which provides energy for the operation of the spark gaps.
Patent GB-1376623-A (GB)
Title: Copying machine tools
IPC: B23Q16/00
Filed: 1972-11-28
Abstract: 1376623 Copy-machining HEPWORTH  IRON CO (ENG) Ltd 28 Nov 1972 [11 Sept 1971] 42458/71 Heading B3K In a copying unit for a copying machine tool comprising a tool holder 1 movable under the control of a stylus mounted on a lever 4 through a servo, the depth of cut is adjustable by moving the fulcrum axis 5 of the lever 4, the lever 4 being mounted at 19 on an eccentric 6 rotated through a pinion 7 and rack 8, the rack being displaceable by a cam 10 rotatable by a manually or automatically operated indexable shaft 11. The cam 10 acts on the rack 8 through a pin 12 carried by a lever 13. A spring 14 operates on the pinion 7 via a push rod 15 to urge the rack into contact with the pin 12 and the latter into contact with the cam 10. Movement of the eccentric is limited by an abutment stop (31, Fig. 5, not shown), bearing on the lever 13 and provided with a calibrated setting knob. In a modification, Fig. 8, the rack 8 is carried by a rod 25 of a piston 24. A tension spring 14A acts on an arm of the eccentric 6 to urge the piston rod, via the rack 8, into contact with an adjustable stop 28 provided with a calibrated setting knob. The control valve for the piston and cylinder device 24, 26 may be manually or automatically operated.
Patent GB-1316527-A (GB)
Title: Vacuum spark advance cutoff
IPC: F02M19/00
Filed: 1971-09-13
Abstract: 1316527 Timing ignition FORD MOTOR CO Ltd 13 Sept 1971 [2 Dec 1970] 42606/71 Heading F1B An ignition timing control system comprises an engine carburetter 10 having an induction passage 18 containing a spark port 28 located above the idle speed position of a throttle valve 26 controlling flow through the passage and subject to the depression in the carburetter as a function of the movement of the throttle valve from its idle speed position, an engine distributer having a breaker plate 12 pivotally movable in opposite directions to advance and retard the spark timing vacuum controlled servo means 14 connected to the breaker plate for moving the same and flow-rate control means between the spark port and servo means to control the rate of change of application of vacuum from the spark port to the servo means, the control means including conduit means 16 connecting the vacuum at the spark port to the servo means for effecting variable movement of the breaker plate 12 from a maximum retard setting at closed throttle valve idle speed position to a maximum advance setting at high spark port off idle vacuum levels. An air bleed means 52 is openable upon a decrease in the pressure level at the spark port 28 from essentially atmospheric pressure conditions, in response to an accelerative movement of the throttle valve, to momentarily bleed air to the servo means 14 to maintain the breaker plate at a maximum retard setting. Subsequently the breaker plate setting can advance upon an increase in vacuum level at the spark port. As shown the air bleed means 52 comprises a diaphragm 68 connected to a valve member 66. The chamber 74 is connected to the chamber 72 by a metering orifice 76.
Patent GB-1402522-A (GB)
Title: Electrical outlet unit
IPC: H02G3/18
Filed: 1971-09-14
Abstract: 1402522 Electrical outlet units DORMAN SMITH BRITMAC Ltd 13 July 1972 [14 Sept 1971 12 Nov 1971] 42700/71 and 52613/71 Heading H2E A floor outlet box comprises a lid 59 with support flanges 60 pivotally connected by struts 63, 64 to frame 40 which is adjustable within a main box 11 by screws 48 to be flush with the floor covering. Box 11 is adjustable to screed level by screws 37 and has apertures 14, 15 for receiving wires connecting to power and telephone outlets 56, 57. The lid has a U-shaped handle 76, which when not in use lies against the top of the lid, and an aperture 71 above a cable holder 72 for the leads to telephones and other equipment. Reference has been directed by the Comptroller to Specification 1,314,396.
Patent GB-1378526-A (GB)
Title: Low contractility wax composition for moulds
IPC: C08L21/00
Filed: 1972-09-14
Abstract: 1378526 Wax moulding compositions KUREHA KAGAKU KOGYO KK 14 Sept 1972 [18 Sept 1971] 42719/72 Heading C5W A low-contraction wax composition suitable for making wax moulds comprises wax and hollow carbon microspheres dispersed in the wax in an amount of from 20 to 60% by volume of the wax. The microspheres have a particle size of 10 to 300Á and an apparent density of 0À4 to 1À2 g./c.c. The wax may be any commercially available mounting wax, e.g. paraffin, carnauba and beeswax, and may be a mixture of two or more of these waxes. Additives e.g. a rosin or an amide, may be included in the composition. Moulds may be produced by casting the composition in the molten state into a cavity defining the shape of the mould and removing the mould from the cavity after solidification of the molten composition. The microspheres may be produced by the process of Specification 1,318,324.
Patent GB-1075644-A (GB)
Title: Process for the manufacture of pneumatic tyres
Inventor: WEINBRENNER ERWIN
IPC: B29D30/06
Filed: 1965-10-08
Abstract: 1,075,644. Moulding tyres. FARBENFABRIKEN BAYER A.G. Oct. 8, 1965 [Oct. 10, 1964], No. 42816/65. Heading B5A. [Also in Division B7] Pneumatic tyres formed of an elastomeric thermoplastic polymer filled with organic and/or inorganic fibres are produced by moulding the two annular halves of the tyre in separate moulds and joining together the two halves by welding, glueing, or by clamps or interlocking recesses. Each half 3, Fig. 1, not shown, may be injection moulded, or it may be cast between heated moulding elements 5-7, Fig. 3, not shown.
Patent GB-1094625-A (GB)
Title: Tool and bit
IPC: B23C5/24
Filed: 1964-12-18
Abstract: 1,094,625. Cutters. O.K. TOOL CO. Inc. Dec. 18, 1964 [Dec. 18, 1963], No. 42902/64. Headings B3B and B3K. A milling cutter or lathe tool bit 2 comprises two cutting edges 3, 4 disposed at an angle to each other and two sets of side serrations 23, 24 one extending transversely of an edge and the other extending obliquely to an edge. The serrations are engaged by serrated clamps 6, 7, each having a positioning screw engaging the bore of a slot in the cutter body and expanded by a conically headed screw 17, 18 screwing into the body. The clamps are also serrated to engage the side of the slot. Thus, the clamp 6 adjusts the bit radially and the other clamp adjusts it axially. In a modification, the clamps 26, 27, Fig. 5, are on opposite sides of the bit. In a further modification, the two sets of serrations on the bit 43, Fig. 6, are superposed and the clamps consist of an obliquely-slotted clamp 46 resting in a horizontally-slotted clamp 45.
Patent GB-1107819-A (GB)
Title: Dyeing shaped articles of polyacrylonitrile
Inventor: NENTWIG JOACHIM
IPC: D06P1/607
Filed: 1966-09-27
Abstract: Polyamine polyethers of formula <FORM:1107819/C3/1> and the quaternary ammonium derivatives thereof wherein X is C1- 20 alkyl, cycloalkyl, benzyl or aryl, R1, R2, R3 and R4 are each H, C1- 4 alkyl or phenyl, m is 0 or 1 and n is 2 to 50 are obtained by heating compounds of formula <FORM:1107819/C3/2> in the presence of sulphuric acid or phosphoric acid at 150-250 DEG  C.  The products may then be quaternized.  Typical starting materials include N,N-dihydroxy ethyl-cyclohexylamine or -butylamine.  Polyesters or polyurethanes may be prepared by reacting dicarboxylic acids (e.g. adipic acid) or diisocyanates with compounds of Formulae II or III or with compounds of formulae <FORM:1107819/C3/3> wherein k and l are each 2 to 10.ALSO:Shaped articles of polyacrylonitrile or copolymers of acrylonitrile with up to 20% by weight of other vinyl compounds, are dyed by means of cationic dyestuffs in the presence of a quaternisation product of a compound which contains at least twice the group:- <FORM:1107819/D1-D2/1> wherein X is C1-20 alkyl, cycloalkyl, benzyl or aryl, and R1, R2, R3 and R4 are independantly H, C1-4 alkyl or phenyl.  The compound containing at least two of the above groups may be for example a polyether polyamine, a polyester polyamine or a polyurethane polyamine.  Specified dyestuffs are diphenyl-methane, triphenyl-methane, rhodamine, thiazine, oxazine, methine or azomethine dyestuffs or azo or anthraquinone dyestuffs which contains the onium grouping.
Patent GB-1320024-A (GB)
Title: Carding arrangements for deep pile knitting machines
IPC: D04B9/14
Filed: 1970-09-08
Abstract: 1320024 Knitting-machines; openers BUNKER-RAMO CORP 8 Sept 1970 [9 Sept 1969] 43016/70 Headings D1C and D1N A high-pile knitting machine includes carding apparatus comprising a rotatable carding drum 80, and a fibre delivery belt 130, having a section conforming to the drum. The peripheral speed of the drum is greater than the linear speed of the belt, so that the fibres are combed before being taken by the needles 20. The belt is driven by a roller 150, which cooperates with a pressure roller 180; its tension is set by an adjusting roller 140.
Patent GB-1435366-A (GB)
Title: Plastics mount for a photographic transparency
IPC: G03B21/64
Filed: 1973-09-13
Abstract: 1435366 Photographic transparency mounts GEIMUPLAST PETER MUNDT KG 13 Sept 1973 [21 Sept 1972] 43133/73 Heading G2X A plastics mount for a photographic transparency comprises two superposable frames 1, 2 each defining a window which are in alignment when the frames are superposed. The frames are connected by a spine 4 and two hinges 10, 11 so that they may be superposed by folding in direction A; the spine and frames have sloping sides 6-9 which define parallel grooves, the narrow webs at the bottom of the grooves constituting the hinges 10, 11. The frames, spine and hinges are moulded in one piece with a coplanar face 14. In the superposed position frame 2 is retained in side walls 3, 3' of frame 1 with shoulders 12 and 13 abutting, the outer face of spine 4 substantially at right angles to the faces of the frames, and sloping faces 8, 9 spaced from faces 6, 7.
Patent GB-431411-A (GB)
Abstract: 431,411. Ignition systems ;timing. KENNINGTON, W. O., and DELCO-REMY & HYATT, Ltd., 111, Grosvenor Road, Westminster. Jan. 9, 1934, No. 858. [Class 7 (iv)] Parallel interrupter arms b, c, are set so that the arm b opens 5‹-30‹ later than the arm c. At a predetermined engine speed the arm b is rendered inoperative by an electromagnetic device h in circuit with the enginedriven current generator. An arm n is moved by the core l to obstruct the end of the arm b. A larger and quicker lift is given to the arm b than to the arm c. According to the Provisional Specification linkwork operated by the engine suction, or a cam dependent on an engine-driven governor may replace the electromagnetic control.
Patent GB-983457-A (GB)
Title: Multi-gap magnetic head
IPC: G01D5/245
Filed: 1962-11-15
Abstract: 983, 457. Measuring displacement electrically. SONY CORPORATION. Nov. 15, 1962 [Nov. 15, 1961], No. 43321/62. Heading G1N. [Also in Division G5] A multi-gap transducer (Fig. 4) has a plurality of poles P 1 .... mounted on a common core 6, each pole carrying a series-connected winding C 1 .... such that the output of any winding is opposed to the outputs of the adjacent windings. For use in reading magnetic scales consisting of a sine wave recorded on a magnetic medium, a magnetic core 8, Figs. 5, 6 has confronting faces 8a and 8b from which project equally spaced magnetic plates S 1 ... to form poles P 1  . . . ., carrying series-opposed windings C 1 ... If the wavelength of the recorded sine wave is #, the pole gaps are chosen to be #/2 for high selective sensitivity of the head at that wavelength.
Patent GB-1135858-A (GB)
Title: Method and device for the distillation of water from saline solutions
Inventor: VIGNET PAUL
IPC: C02F1/06
Filed: 1966-09-28
Abstract: 1,135,858. Evaporators, multi-stage flash type; desalination of sea water. COMMISSARIAT A L'ENERGIE ATOMIQUE. 28 Sept., 1966 [6 Oct., 1965], No. 43390/66. Heading B1B. Sea water is desalinated in multi-stage flash evaporator comprising four coaxial columns 14, 16, 18, 20 which form an axial chamber 13 and three annular chambers 15, 17, 19, arranged at progressively increasing height, each chamber communicating with the adjacent chamber through lower openings 30 and upper openings 26, 28. The arrangement is such that, when the evaporator is in operation, there is an automatic drop in pressure from chamber 13 to chamber 20. The sea water to be distilled, after flowing through heat exchanger 33 and heater 32, is introduced into the lower section of chamber 13. Cold distilled water is supplied to the upper section of chamber 20. The sea water rises successively through the lower sections of chambers 13, 15, 17, 19; and distilled water flows successively through the upper sections of the chambers in the reverse direction. Flash evaporation of some of the sea water takes place in the lower section of each chamber; and the vapours are condensed by a rain of distilled water 24, distributed by perforated plate 27, in the upper section of the chamber. The droplets of distilled water are received in an annular collector 23 in each chamber, and the liquid then flows through openings 28 into the condenser of the next lower chamber. The required difference in pressure between the chambers is established due to the depth of distilled water above the perforated plate 27 in each chamber. Residual brine is withdrawn from chamber 19 through pipe 34, and is in part recirculated with fresh feed to heater 32 and chamber 13. Warm distilled water is withdrawn from the collector in chamber 13, and is cooled by conducting it through heat exchanger 33. Part of the cool distilled water is withdrawn from the system as product, and the remainder is recirculated to the condenser of chamber 20.
Patent GB-1111202-A (GB)
Title: Automobile inspection ramps
IPC: B66F7/24
Filed: 1965-10-13
Abstract: 1,111,202. Vehicle inspection ramps. BRITISH PETROLEUM CO. Ltd. (H. U. Maier, and F. Perritaz). 7 Oct., 1966 [13 Oct., 1965], No. 43391/65. Heading B8H. A foldable ramp comprises supports 11, 12 which are pivoted to a platform 10 so as to be foldable beneath the platform, Fig. 3 (not shown), when not in use. The support 11, in the operative position, constitutes an access ramp for one wheel of a vehicle and the support 12 is formed with a chock 15. The arrangement is such that, in the operative position, the platform 10 is inclined downwardly towards the chock 15.
Patent GB-1403022-A (GB)
Title: Spool valves
IPC: B29C48/691
Filed: 1972-07-14
Abstract: 1403022 Valves BRUNSWICK CORP 14 July 1972 [2 Sept 1971] 43393/74 Divided out of 1403021 Heading F2V A common port 18 is connected to either or both of ports 22 and 22<SP>1</SP> by axially adjusting valve spool 30, which has a reduced cross-section zone 50 and an axially extending groove 56 in said zone, walls 58 and 58<SP>1</SP> at the ends of the groove aligning with the axes of ports 22 and 22<SP>1</SP>, and the axial ends of zone 50 being defined by frusto-conical shoulders 62, 64 which are engageable with respective, similarly shaped seats 66 and 68 in the valve body. At the extreme positions of the spool one shoulder engages its seat, and port 18 then communicates with only one port 22 or 22<SP>1</SP>; at intermediate positions port 18 communicates with both ports 22 and 22<SP>1</SP>. Walls 58, 581 may extend at 120 degrees to the spool axis and ports 22, 22<SP>1</SP> are 60 degrees apart. The construction facilitates flow of high viscosity plastics, which may be delivered via one spool valve to a pair of filters and thence via another spool valve to an extruder head or spinnerette. The two valves (Fig. 5, not shown) are adjusted by a common handle (38) to switch flow from one filter to the other, the downstream valve being connected to the handle via an independent adjusting screw involving a lost motion connection, which allows the downstream valve to shut off one filter while the upstream valve delivers a limited flow to expel the air therefrom.
Patent GB-1100689-A (GB)
Title: Hydraulic steering system for a vehicle
IPC: B62D5/093
Filed: 1965-10-13
Abstract: 1,100,689. Telemotor steering systems. HANS STILL G.m.b.H. 13 Oct., 1965 [13 Nov., 1964], No. 43499/65. Heading B7H. A telemotor steering system comprises a pump 17 operated by a steering wheel 16 and a pair of hydraulic rams 12, 14 and 13, 15 which act upon a bogey 11 carrying the steered wheels. The fluid lines 18 and 19 connecting the rams and pump include valves 24 and 25 which are interconnected by a piston 26 such that when the pressure in line 19 rises as a result of a steering action in wheel 16, the piston 26 trips valve 24 to allow free return flow of the fluid in line 18, and vice versa. Both lines 18 and 19 are connected, through non-return valves 27 and 28 with a pressure accumulator 20 by means of which leakages are made up. Pressure relief valves 29 and 30 are also included to absorb wheel shocks.
Patent GB-1193647-A (GB)
Title: Improvements in Chain Connector Links.
Inventor: YARMAK JULIUS
IPC: F16G15/02
Filed: 1966-09-29
Abstract: 1,193,647. Chain links. COAL INDUSTRY (PATENTS) Ltd. 22 Sept., 1967 [29 Sept., 1966], No. 43525/66. Heading F2Q. A connector link comprises a pair of similar U-shaped parts 10, 11 interfitted together, each part having a tapered limb 15 and a parallelsided limb 16, the limbs each having transversely extending parallel grooves 17, 19 and teeth 18, 20 which are adapted to engage teeth and grooves on the other part when one part is moved laterally with respect to the other part, and a locking pin 46 inserted in a bore 48 extending through the limbs of the two parts. The adjacent faces of the parallel-sided limbs 16 have interengaging teeth 40 and grooves 42. The faces of the teeth 18, 20 are inclined so that under load the parts of the link resist separation. Various tooth profiles are described.