baber/WOPTO huggingface dataset:
Patent GB-1228025-A (GB)
IPC: C03C10/00
Filed: 1968-04-16
Abstract: 1,228,025. Thermally crystallizable glass. OWENS-ILLINOIS Inc. 16 April, 1968 [13 April, 1967], No. 17781/68. Heading C1M. A glass which has an average lineal coefficient of thermal expansion over the range zero to 300‹ C. between 30 and 50 x 10-<SP>7</SP> per degree C. of temperature increase, an annealing point temperature of at least 1100‹ F., has a composition consisting essentially of the following ingredients expressed in weight per cent of the total glass composition: SiO 2 , 64 to 74; Al 2 O 3 , 15 to 23; Li 2 O, 3.3 to 4.8 ; ZnO, 1 to 3.8 ; TiO 2 , 1À2 to 2À4 ; and ZrO 2 , 0 to 2, the remainder if any consisting of other compatible ingredients with the provisos that when ZrO 2  is over 1.7 Li 2 O is over 4; that the weight per cent TiO 2  plus one half that of ZrO 2  totals at least 2.2 ; that the weight per cent Li 2 O plus that of ZnO is greater than 4.7 ; that at least 90 weight per cent of the composition consists of the foregoing ingredients; that the composition contains less than 2.5 5 weight per cent MgO and less than 2.5 weight per cent CaO if such ingredients are present, that the weight ratio of ZnO to MgO is at least 1, and that the weight ratio of ZnO to CaO is at least 1, said glass being thermally crystallizable by in situ crystallization to form a transparent, a translucent, and an opaque crystalline ceramic each having an average lineal coefficient of thermal expansion less than 11 x 10<SP>-7</SP> per degree C. over the range zero to 300‹ C. and having essentially all crystals of less than 25 microns across in their largest lineal dimension. The glasses have liquidus temperatures below 2550‹ F. Other compatible inorganic oxides and halides can be present in the glasses such as P 2 O 5  in amounts up to 3%; Na 2 O and K 2 O in amounts up to 1.5%, their aggregate being below 2%; less than 2.5% CaO; up to 2% B 2 O 3 ; up to 0.3% F; and up to 2% Cl. The glass ceramics are generally prepared by heat-treating the glass, first, at a low temperature for at least 5 minutes to form many nuclei or crystallites, and thereafter at a higher temperature to complete in situ crystallization to the desired degree and form. The temperature of the initial heat treatment usually lies in the range from the annealing point to 250‹ F. above it. The higher crystallization temperature range may be 1800-2300‹ F. or 1400-2300‹ F. and the times are usually from 15 minutes to 3 or 4 hours. Below 1675‹ F., a main crystalline phase of beta-eucryptite is formed, while at the higher temperatures beta-spodumene crystalline forms appear. Generally, transparent glass-ceramic products are favoured by relatively long nucleation temperature range heating times. The main controls employed to favour the formation of opaque glass ceramics are heat treatment temperatures in the higher part of the range and increasing times of heat treatment. For a given glass, time and temperature conditions intermediate those which produce opaque and those which result in transparent glass ceramics will result in translucent glass ceramics.
Patent GB-1231111-A (GB)
Inventor: RABL R
IPC: B29C67/20
Filed: 1969-01-31
Abstract: 1,231,111. Moulding plastic substances. L. JUNGFER, [trading as AKKUMULATORENFABRIK DR. LEOPOLD JUNGFER]. 31 Jan., 1969 [11 Nov., 1968], No. 5330/69. Heading B5A. A plastics powder is fed from a hopper 8 on to an endless conveyer belt 6 which passes through a furnace 10 whereby the powder is sintered and adheres to the belt and passes over a drum 5 and through a cooling duct 11 located below the furnace; as the sintered strip passes through the duct it becomes detached from the belt and is then supported by the upper run 12a of a further endless belt 12. On leaving the outlet 11a of the duct the strip is formed into a loop 15a and received by guide surfaces 21, 22 and fed through rollers 23 to cutters 24 which divide the strip longitudinally and then through rollers 25 to cutters 28 which out the strip transversely. The plates thus produced slide on to a transverse conveyer 30. A housing 17 is connected to the furnace and surrounds the conveyer drum 5 and the inlet end of the cooling duct 11, and a suction fan 19 draws cooling air through the duct and carries fumes from the furnace.
Patent GB-1232405-A (GB)
IPC: H01L33/08
Filed: 1968-08-29
Abstract: 1,232,405. Electroluminescence. GERBER SCIENTIFIC INSTRUMENT CO. 29 Aug. 1968 [16 Feb., 1968], No. 41226/68. Heading C4S. [Also in Division H1] A display matrix (monochrome or colour) comprises an array of 4-layer semi-conductor switches, each of which may be rendered conductive by the application of pulses simultaneously to the two central layers thereof, and an array of light-emitting dots 30, each dot 30 being associated with and activated by a corresponding switch. The central layers of the switches are constituted by two mutually perpendicular superimposed sets of semiconductor strips 22, 24 respectively aligned with the rows and columns of the array of dots 30, so that any particular dot may be activated by the application of suitable pulses simultaneously to the appropriate strips 22, 24. The semi-conductor switch array may be formed as a series of epitaxial layers and the light-emitting dots 30 may comprise two layer diodes. One of the layers of each dot 30 may be constituted by the adjacent end of the corresponding switch. Insulating material is provided between the elements of the matrix. As shown, a transparent conductor 32 is provided below the light-emitting dots 30, and above each switch is provided a resistive dot 38 and a common conductor 40, each dot 38 serving as a current limiter for the corresponding switch and lightemitting device. The resistive dots 38 may be omitted or replaced by an array of dielectric dots, e.g. of barium titanate, providing a capacitance in series with each switch whereby the current through each switch will drop below the value required to sustain conduction a predetermined time interval after the switch has been rendered conductive. In a modified arrangement of this type, a conductive dot (68), Fig. 7 (not shown), is provided between each switch and the corresponding dielectric dot (74), the dots (68) being connected through resistive material (70) to a common conductor (72).
Patent GB-1232901-A (GB)
IPC: F16H37/04
Filed: 1969-03-07
Abstract: 1,232,901. Variable speed gearing. OLIVER CORP. 7 March, 1969 [17 Oct., 1968], No. 12233/69. Heading F2D. Multi-ratio (e.g. 3-speed) gearing (e.g. between a tractor clutch 12 and main six-speed gear-box) comprises coaxial input and output shafts 20, 35, the input shaft 20 connected by gears 26, 68 to a parallel countershaft 44 connected by gears 70, 78 to planetary gearing 50 meshing with a ring gear 48 rotatable with and a sun gear 54 coaxially rotatable on shaft 35, there being a first clutch 46 to directly couple shafts 20 and 35, a brake 58 for the sun gear 54 (for over-drive), and a further clutch 60 (e.g. a one-way over-running clutch) connecting the sun gear 54 to the shaft 35. There may be an oil pump (74), Fig. 2A (not shown) driven by a gear 72 on the shaft 44 to supply from a sump 80 both lubrication 196, 205 . . . 210 and selectively via a three-position spool valve (136) pressure to pistons for the clutch 46 and brake 58. As shown, if the pump (74) fails the gearbox remains in under drive.
Patent GB-1238773-A (GB)
IPC: G01N27/16
Filed: 1969-03-11
Abstract: 1,238,773. Measuring methane content electrically. CHARBONNAGES DE FRANCE. March 11, 1969 [March 13, 1968], No. 12802/69. Heading G1N. An apparatus for measuring the percentage of methane in a mixture with air comprises a Wheatstone bridge of which the measuring arm is a resistance V variable in response to the heat of combustion of the mixture, the ratio arms B, C, being a rheostat K, the slider of which is coupled to rotatable cap 2 bearing an annular scale 3 indicating percentage methane content, the bridge having a centre-zero galvonometer as a null detector. The scale is calibrated only up to 3%. concentrations in excess of that being indicated by alignment of the galvonometer pointer (7), Figs.3-8 (not shown), with an ungraduated scale portion, coloured red to give a visual warning. The bridge null indicator is a centre-zero galvanometer, N, which has a light bulb to indicate the zero graduation, the bulb being obscured by the opaque pointer (7) at balance or the pointer may be transparent and coloured differently from the bulb so that the balance position of the pointer is marked by a colour change of the observed light. The apparatus is said to be applicable to measurements of the concentration of any hydrocarbon gas.
Patent GB-1257088-A (GB)
IPC: E02F3/26
Filed: 1969-08-19
Abstract: 1,257,088. Measuring excavating rate. INSTITUT AVTOMATIKI. Aug. 19, 1969, No. 41342/69. Heading G1N. [Also in Division G3] The excavating rate of a rotary excavator having a belt conveyer for the excavated material is measured by measuring the load on the conveyer, the linear speed of the conveyer, and the inclination angle of the conveyer, and deriving therefrom a signal representing the excavating rate. A tachogenerator 2 and unit 3 generate an A. C. voltage of amplitude representative of the speed of the belt which is fed to the primary winding 29 of a differential transformer, the core 28 of which is displaced according to the weight of material on the belt. The A.C. signal from unit 3 is also fed to a rotary transformer 5 the coupling factor of which is a cosine function of the angle of the conveyer from the horizontal. The output of secondary windings 30, 31 is rectified at 32, 33 and the output from transformer 5 is rectified at 6 and subtracted from the output of rectifiers 32, 33 to give a D.C. signal corrected for the weight of the conveyer. Computing circuit 10, including a modulator 11 and a negative feedback loop comprising a further cosine rotary transformer 13 and demodulator 16 forms a signal proportional to the excavating rate, namely the product of the load and velocity. An indicator 20, recorder 23 and integrator 22 (for giving total rock excavated) are provided. A magnetic amplifier 21 controls pivoting of the rotor supporting boom to maintain the excavating rate at a preset level.
Patent GB-1257545-A (GB)
IPC: A61K9/02
Filed: 1969-03-27
Abstract: 1,257,545. Antibiotic compositions. KYOWA HAKKO KOGYO CO. Ltd. 27 March, 1969 [28 March, 1968], No. 16158/69. Heading A5B. A therapeutic composition in the form of a suppository, (which may be solid or in the form of a viscous liquid), comprises (1) an antibiotic selected from spiramycin, leucomycin, oleandomycin and pharmaceutically acceptable salts thereof; (2) chloramphenicol or a pharmaceutically acceptable salt thereof, and (3) a pharmaceutically acceptable vehicle. The vehicle may be, for example, oleum cacao, sesame oil or peanut oil.
Patent GB-1270676-A (GB)
IPC: C25C3/12
Filed: 1969-06-03
Abstract: 1,270,676. Electrode supports. MONTECATINI EDISON SpA and G. DE VARDA. June 3, 1969 [June 7, 1968], No. 28031/69. Heading C7B. Apparatus for supporting an electrode in an electrolytic cell, e.g. for the production of aluminium from a bolten bath, comprises an arm 1, for rigid connection to the electrode 4, which is provided with insulating means 10, e.g. of asbestos, for interrupting electric and heat flow therealong, and a T-junction 12 articulated in a trolley, movable along a guide 13, 13<SP>1</SP> positioned along the side of the cell. As shown the trolley 16 is provided with wheels to run between rails 13, 13<SP>1</SP>. Movement of the T-junction 12 is restricted such that the arm 1 cannot rotate about its own axis. The electrode may be supported between two arms extending to opposite sides of the cell. Means may be provided for vertical adjustment of the guide-tracks, and hence of the electrodes; and electrode height may be determined by adjustment of the support bars 3, 3<SP>1</SP> through wedges 5, 5<SP>1</SP>. The electrodes may be of graphite.
Patent GB-1288775-A (GB)
IPC: B01J37/06
Filed: 1969-10-08
Abstract: 1288775 Expanded catalyst carriers and catalysts STAMICARBON NV 8 Oct 1969 [11 Oct 1968 18 Nov 1968] 49437/69 Headings B1B B1G and B1F [Also in Division C1] A process for the production of expanded macroporous catalytic or catalyst carrier bodies from a ceramic material comprises forming a non colloidal suspension of the ceramic material in a liquid suspension medium, introducing predetermined amounts of the resulting suspension into a heating liquid held at a temperature which is higher than the boiling point of the liquid suspension medium at the working pressure, the suspension medium and said heating liquid being substantially immiscible under the prevailing conditions, whereby expanded macroporous catalytic or catalyst carrier bodies are formed and are separated from the liquid and subjected to a further thermal treatment. The ceramic material may be clay, kaolinite, mullite, sepiolite, bentonite, silica, aluminium oxide, titanium oxide, chromium oxide, magnesium oxide. Examples relate to bodies prepared from nickel chloride, urea and kaolinite; nickel chloride, urea and alumina; alumina and kaolinite; silica and kaolinite. For example, in Fig. 1 catalyst bodies are prepared by forming a suspension of a carrier material, catalyst and liquid in mixing chamber 5, the suspension is then transferred to heating vessel 9 by pumps 10 which vessel 9 contains e.g. hot oil which is not miscible with the liquid, and is at a temperature such that the liquid boils off in the hot oil, and the thus formed catalyst bodies are filtered off at 19. The suspension from chamber 5 may be divided into segments by shots of gas or liquid introduced from line 21.
Patent GB-1290235-A (GB)
IPC: H01J37/02
Filed: 1970-05-27
Abstract: 1290235 Electron and ion beam systems SIEMENS AG 27 May 1970 [28 May 1969] 25402/70 Heading H1D Corpuscular beam apparatus (e.g. electron or ion microscopes, diffraction devices) in which a beam is projected in an evacuated column supported by a stand, comprises one or more pneumatically or hydraulically operating elastically deformable pressure vessels 8, 9, for attenuating mechanical vibrations and isolated from the evacuated interior thereof. The vessels may be cylinders (also Fig. 3, not shown) or a hose symmetrically arranged about the beam axis and included between base-plate 6 and stand 7 or attached to the column, the cylinders being equipped with guard sleeves, and a hose 9 may be at pivot system 5 (also Fig. 4, not shown) including collar 5a, the movement of column section 4 being initially in the upward direction and then pivoting. Vessels 8, 9, are connected to pump 10 via compensating vessel 11 carrying gauge 12, the pressure being adjustable for optimum damping by valve 14 (Fig. 2, not shown). Conventional spring elements 15 may be included.
Patent GB-1290691-A (GB)
IPC: F01L1/14
Filed: 1969-01-23
Abstract: 1290691 Cam followers SIMMS GROUP RESEARCH & DEVELOPMENT Ltd 9 Jan 1970 [23 Jan 1969] 3754/69 Heading F2K A cam follower comprises a tubular body 12 of light-weight material, e.g. aluminium, housing a steel bridge member 11 having a surface 5 for engagement by a push-rod 4 and legs 17, 18 which engage flats 19, 20 on the axle 15 of a roller 14 adapted to contact a cam 6, so that the thrust load is transmitted from the roller to the push-rod solely through the axle 15 and bridge member 11. A circlip 22 retains the bridge member 11 and the roller assembly 10 against an internal flange 21 of the body 12.
Patent GB-1297499-A (GB)
IPC: G07F17/14
Filed: 1971-10-22
Abstract: 1297499 Coin-freed apparatus COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 22 Oct 1971 [23 Oct 1970] 49196/71 Heading G4V Coin-freed apparatus comprises a substantially horizontal turntable 1 from which inserted coins are centrifugally directed one at a time to a passage 15 leading to a coin path along which are situated respective coin validation devices for each type of coin, each device comprising a signal source and detector, for example 41, 42, and respective coin outlets 24, 25 and 26. In the embodiment described the signal source comprises an electromagnet 41 a coin being deemed authentic if its effect on the inductive coupling between the electromagnet and detector, a function if the diameter, thickness and material of the coin, lies within a certain range. The passage 15 is bounded by fixed inner and outer walls 13, 16 the inner wall having an opening 14 for passage of coins from the central coin receiving portion 12 to the peripheral passage 15. Coins received from the passage 15 are moved around the periphery of a stationary disc 2, past the validating devices, by means of a second turntable 3 rotating in the opposite sense to turntable 1 which has on elastic loop 32 on its underside for engaging the coins (see also Fig. 2, not shown). In a second embodiment (Fig. 5, not shown) the inner wall 13 is mounted eccentrically to the axis of the turntable, the opening 14 is adjacent the tangential portion 17 of the passage 15, photoelectric means (91), (92) are provided to sense overthick coins and actuate means for removing them, projections (93) are provided on the inner wall 13 to knock over any coins leaning against the wall and a brush (9) is provided to clean the first turntable's surface. Coins are directed from outlets 24 to 26 to respective temporary coin stores comprising pivoted plates (61), (62). The values of accepted coins are added in totalizer (55) and when the total reaches the amount set in element (56) a comparator (57) issues a signal to energize an electromagnet (72) which pivots plate (61) to direct the coins held in space (6) to the permanent coin store. If after the insertion of the final coin does not coincide with the required amount electromagnet (82) is energized to pivot plate (62) and return the inserted coins to the user. The apparatus is said to be particularly applicable to the collection of road tolls.
Patent GB-1312231-A (GB)
Title: Casement stays
IPC: E05C17/28
Filed: 1969-01-10
Abstract: 1312231 Lockable casement stay R W PIDDINGTON 10 April 1970 [10 Jan 1969] 1512/ 69 Headings E2A and E2F Releasable locking means for controlling relative angular movement between first and second parts e.g. bars of a casement stay, comprises a body, a plunger working in a bore in the body and movable axially between an operative advanced position and an inoperative retracted position, a spring normally urging the plunger into the operative position and a key engageable with the plunger to urge the plunger into the inoperative position against the force in the spring, the key being retained in engagement with the plunger until the plunger is again moved into the operative position. In the Figure, slide assembly 14 pivotally mounted on a bar pivotally connected to a window frame, is slidably mounted on a bar 13 secured to a window. The lower end of a plunger 23 is normally received within an elongated slot 36 in bar 13. To open the window further, shank 50 of the key is inserted into the upper end of slide assembly 14 so that pin 52 on the shank engages slot 45 in plunger 23. The key is raised vertically, withdrawing the lower end of the plunger from engagement with slot 36 and engaging it with the upper surface of bar 13. The key may only be removed again when slot 36 receives the plunger.
Patent GB-1313107-A (GB)
Title: Window cleaning apparatus
IPC: A47L1/06
Filed: 1969-10-29
Abstract: 1313107 Cleaning windows FRANK HARLOW ENG Ltd 29 Oct 1970 [29 Oct 1969] 52966/ 69 Heading A4F Window cleaning apparatus comprises a cleaning head having abody part 18 mounted on a rod 12 and carrying a sponge pad 14 and a squeegee 22 pivotally adjustable relative to the latter. The pad 14 is secured to a backplate 16 having integral plug elements, 50, Fig. 1 (not shown), detachably engaged in apertures (52) in the part 18. The squeegee 22 is retained in an inoperative or operative position by pivoting it relatively to the part 18 so that a projection 44 on a spring pressed plunger 34 carried thereby engages either in a dimple 40 or in a dimple 42 in the part 18.
Patent GB-1322261-A (GB)
Title: Oxygen lance and probe guide apparatus
IPC: C21C5/46
Filed: 1970-08-19
Abstract: 1322261 Oxygen lance and probe handling device ASHMORE BENSON PEASE & CO Ltd 20 Oct 1971 [19 Aug 1970] 39976/70 Heading F4B Apparatus for handling oxygen lances 18 and sampling probes 19 of a metal converter comprises a wheeled carriage 6 movable horizontally on a track 2 above the converter, the carriage being provided with guides 13, 15 in which trolleys 12, 14 supporting the oxygen laces 18 and sampling probes 19 are vertically movable, each trolley having associated with it a winch for independently raising or lowering that trolley with its lance or probe. The carriage 6 may be formed of two parts 6A, 6B each independently movable on the track 2 by a crank arm 8 and each carrying a lance 18 and a probe 19. Three fixed guideways 3, 4, 5 extend from the track to adjacent the converter hood, so that with a guide 13, 15 aligned with a respective guideway 3, 4 or 5 the trolley in that guide may be lowered into the guideway to lower the attached lance or probe into the converter. In the arrangement illustrated either probe 19 may be used with the left-hand lance 18 and either lance 18 may be used with the right-hand probe 19. Other embodiments disclosed have one lance for use with either of two probes and two lances for use with any of three probes.
Patent GB-1323552-A (GB)
Title: Security system for controlling the labelling and packaging of  products
IPC: B65B61/26
Filed: 1969-07-03
Abstract: 1323552 Controlling labelling and packaging operations D B FOSTER 2 July 1970 [3 July 1969] 33667/69 Headings B8C and B8F A security system for controlling a labelling and packaging operation has a plurality of input channels at each stage of the operation, the product associated elements involved in the operation (e.g. product to be packed, containers, labels &c) being coded for recognition by the system and the input channels of each stage receiving separate inputs from respective elements brought together at that stage, the coded information related to the elements being compared for coincidence by electronic logic. Notional "AND" logic is described as applicable. Three systems are outlined:- (a) Serial Identity Assembly System (Fig. 6).- At each stage the items brought together at that stage have their coded identities mutually compared before being allowed to proceed to the next stage. (b) Identity Assembly System with Common Master Code (Fig. 7).-At each stage the item added in each operation has its code compared against a code derived from a "master", the "master" being essential for each stage to be allowed to proceed. (c) Serial Identity Aggregation System with Common Identity Master (Fig. 8).-A combination of (a) and (b) above. At each stage the coded identities of the items brought together are both mutually compared and also compared against a "master" before proceeding to the next stage.  In carrying the system into effect it is proposed that the prime batch of material to be packed, labelled &c may be accompanied by a punched card attached to the batch container by a cord or the like. The card would be inserted into a card reader at the primary filling stage, and the primary containers (e.g. phials) would be similarly identified. Alternatively each primary container may be individually marked for automatic recognition. Subsequent labels and containers would be identified at the appropriate stage by automatic reading of marks thereon. The common master card (when required) would be preferably a punched card. Various methods of automatic recognition proposed include:-photodetectors detecting dark marks on light background or punched holes; magnetic detectors reading magnetic marks; luminescent or nuclear radiation detectors reading appropriate marks. On cylindrical bottles an additional mark would indicate where the code marks start. The "master" code may also be used to check the correct printing of labels. Various labels coded in accordance with different systems are illustrated in Figs. 9-12 (not shown).