baber/WOPTO huggingface dataset:
Patent GB-1226243-A (GB)
IPC: H02K15/16
Filed: 1969-03-14
Abstract: 1,226,243. Making motor and generator casings. UNIVERSAL ELECTRIC CO. 14 March, 1970 [26 June, 1968], No. 13511/69. Heading B3A. [Also in Division H2] A casing for an electric motor or generator is formed by engaging locating surfaces on end members with circumferentially spaced abutment surfaces formed axially inwardly of the ends of a cylindrical shell, and radially deforming portions of the shell so as to engage the outer surfaces of the end members. The locating surfaces on the end members, which also support the bearings 15, may be formed by radial tabs 22 axial tabs (36, Figs. 9, 10, not shown), and the abutment surfaces on the shell formed by notches 20 or staked-in portions (27, 34, Figs. 7-10, not shown). The deformed portions are formed by all or part of the shell edge between notches, or by segments 23 defined by circumferential slits 21. The construction avoids the necessity of accurately machining the ends of the shell and is readily dismantled.
Patent GB-1226536-A (GB)
IPC: E06B3/663
Filed: 1967-09-06
Abstract: 1,226,536. Double glazing units. B. TAYLOR. 25 Sept., 1968 [6 Sept., 1967], No. 40834/67. Heading E1R. A double glazed unit comprises an integral flexible P.V.C. framing gasket of the outline shown 3 a-g with seven faces contacting in sealing manner the marginal portions of the two panes and providing the spacer element 3d between the panes 1, 2 and is suitable for clocks, Dutch lights, greenhouses &c., the gasket being produced by dip moulding technique using a suitably shaped former. In a second embodiment (Fig. 2) the gasket of solid rectangular form provided with two channels to receive the marginal edge portions of the panes 1, 2. (For Figure see next column)
Patent GB-1229214-A (GB)
IPC: G09B3/06
Filed: 1967-05-19
Abstract: 1,229,214. Teaching machines. J. J. G. CLARK. 19 Aug., 1968 [19 May, 1967], No. 23358/67. Heading G5G. A teaching machine is provided with a film strip 32 which is fed through the machine in sequential steps by the pupil by means of a lever 39, the information which is projected on a screen 13 offering a number of alternative answers, the pupil choosing an answer by operating one of a number of levers 15, 16, 17 which levers move shutters 53 to uncover further information on the projected programme. Movement of lever 39 by the pupil to feed the film-strip also moves a web of paper 97 through a writing platform 18 provided with a cover 105 which prevents the pupil correcting a previous answer.
Patent GB-1238679-A (GB)
IPC: H01L21/00
Filed: 1968-12-10
Abstract: 1,238,679. Masking semi-conductors. ARBEITSSTELLE FUR MOLEKULARELEKTRONIK. 10 Dec., 1968, No. 58684/68. Heading H1K. An insulating masking layer is formed on a semi-conductor body by first forming a photoresist pattern constituting a negative of the desired mask on the surface of the body or on a layer thereon, by then depositing insulating material on the pattern and surface, and by then treating the photoresist material to remove it and that part of the insulating material overlying it. In an example a quartz plate is used as a silica course in a cathodic sputtering carried out in Ar, N 2  or O 2  in the presence of a magnetic field, the silica being deposited on to a photoresist covered silicon body. When enough silica has been deposited the discharge voltage is momentarily increased so that the photoresist material begins to decompose with the evolution of gas and breaks that part of the silica coating which overlies it. The coated silicon body is then placed in a solvent for the photoresist, given a short ultrasonic treatment, left for the photoresist to swell, and then further ultrasonic treatment is given to loosen the material such that the photoresist and overlying silica may be wiped off to leave the desired silica mask. Germanium and A<SP>III</SP>-B<SP>V</SP> bodies may be similarly masked. Masks may also be made of SiO x , 1<x<2; and of Si 3 N 4 .
Patent GB-1238915-A (GB)
IPC: B29D11/00
Filed: 1968-08-13
Abstract: 1,238,915. Film having restricted optical aperture; coloured laminates. MINNESOTA MINING & MFG. CO. 13 Aug., 1968 [15 Aug., 1967 (2)], No. 38749/68. Headings B4B, B5B and B5N. A film of substantially transparent thermoplastic material, e.g. cellulose acetate-butyrate or polyvinyl butyral, having its optical aperture restricted in one linear dimension (i.e. in the manner of a venetian blind) has relatively narrow contracting elements regularly spaced across and constituting not more than one quarter of the width thereof. The film is made by axially rotating an integral cylindrical block comprising longitudinally regularly alternating relatively thick clear and relatively thin contrasting laminµ of the polymer while advancing a knife 114 against the length and parallel to the axis of the block at a rate maintained essentially constant with respect to the radial speed of the block and simultaneously heating the surface in advance of the cutting line to a temperature to soften the outer portion at least to the depth of the cut being made. As particularly described the contrasting laminµ are pigmented with carbon black, and may be at an angle, e.g. 75-90 degrees, to the plane of the film. The cut film may be polished between hot steel plates to remove surface cutting marks and to prevent an inherent tendency to curl. The cylindrical laminate is made in examples by coating a thin film of carbon black pigmented cellulose acetate butyrate with a thicker layer of the same polymer, cutting discs from this composite and uniting a plurality of discs by heat and pressure after preliminary heating to remove volatiles. The final film may be laminated to sheets of glass or unpigmented polymer.
Patent GB-1239362-A (GB)
IPC: A01K5/02
Filed: 1970-01-12
Abstract: 1,239,362. Endless chain conveyers. FAIRFIELD ENG. & MFG. CO. 12 Jan., 1970 [31 Jan., 1969], No; 1424/70. Heading B8A. [Also in Division H1] An overload protection system for a livestockfeed conveyer having a chain 18, 19, slidably supported within a conveyer housing 11, comprises in combination; a drive sprocket 17 journalled on the conveyer housing in driving engagement with the chain; a drive motor 13 rotatably supported on the conveyer housing and having an output shaft 15 drivingly engaged with the sprocket 17, resilient biasing means 36 interposed between the motor and conveyer housing for resisting the motor reaction torque when driving the sprocket and chain in a forward direction, a motor cut-off switch 43, and linkage means 45, 51, for actuating the switch 43 upon the deflection of the resilient means 36 by a reaction torque exceeding a preselected value. The resilient means 36 includes a housing 33 which is carried on a bracket secured to the motor and is rotatable against the conveyer housing to compress the means 36. The latter comprises a preloaded compression spring interposed between a nut 37 on a threaded plunger 35 and a part of the housing 33. A dog 40 for preventing rotation of the nut as the plunger is turned to vary the amount of spring preload, functions also as an indicator for furnishing a visual indication of the amount of spring preload. The plunger 35 is bent over at at 34 to form a handle for adjustment purposes. A portion 51 of the linkage remains extended (dot-dash lines in Fig. 3) when the switch 43 has been cut-off, and is manually engaged in order to restore the drive. The motor 13 is also in series with a bin-level switch (56) (Fig. 5, not shown) operable when a feeding bin is filled to a predetermined degree. Switches (58) and (60), responsive to weight of material in a bin and a time-switch 32 are also included in the circuit.
Patent GB-1250091-A (GB)
IPC: A43D1/02
Filed: 1969-03-27
Abstract: 1,250,091. Footwear gauge. TEBBUTT & HALL BROS Ltd. March 26, 1970 [March 27, 1969], No. 16234/69. Heading G1X. A footwear gauge comprises a base-plate 4 having two rows of flexible strips 7 and 8 for connecting together in pairs at their outer ends over the foot to be gauged. A shallow tray 1 has a hollow filler 2 defining the heel position. The base-plate 4 comprises a lower cardboard piece 5 fitting in the tray and an upper cardboard piece 6 glued to the lower one. Snips of cardboard 7 and 8 are cut from the piece 6, and are treated at their outer ends with self adhesive for connecting opposite pairs together. A line 9 is provided to be aligned with the big toe.
Patent GB-1251423-A (GB)
IPC: C08F8/50
Filed: 1969-03-21
Abstract: 1,251,423. Thermal oxidative degradation of polyolefins. BADISCHE ANILIN- & SODAFABRIK A.G. 21 March, 1969 [22 March, 1968], No. 14916/69. Heading C3P. The thermal oxidative degeneration of polymers of propylene or butene-1 in the powder phase is carried out by heating at 115-130‹ C. in air for 5 mins.-2 hours, followed by heating at 120-150‹ C. in an inert atmosphere for about the same time and finally cooling. The polymers, e.g. copolymers of propylene or butene-1 with ethylene, may be preheated in an inert gas stream and the degradation may be carried out in the presence of water vapour.
Patent GB-1258323-A (GB)
IPC: A63H3/24
Filed: 1969-04-29
Abstract: 1,258,323. Wetting doll. H. STEINMANN. 29 April, 1969, No. 21780/69. Heading A6S. A doll or similar toy figure has jointed to the trunk 4 a flexible extremity 1 (e.g. an arm) which is formed as a closed and sealed hollow member serving as a liquid reservoir, and a supply tube 3 extends from deep into the hollow member through the joint 2 into the trunk 4 and to an outlet opening 5, so that when the hollow member is squeezed liquid passes through the tube to the outlet, the doll thereby simulating the passing of liquid. The hollow member may be filled through a hole which is normally closed by a suitable plug 6; and the supply tube may be provided with constrictions 7 at the joint and outlet opening to facilitate in its location.
Patent GB-1259540-A (GB)
IPC: G03B17/02
Filed: 1969-09-25
Abstract: 1,259,540. Photographic apparatus. EASTMAN KODAK CO. Sept. 25, 1969 [Sept. 25, 1968], No. 47265/69. Heading G2A. A photographic apparatus comprises a body 1 defining a battery compartment 1a having a cover 4, wherein the cover has mounted thereon first and second electrical contacts in the form of a spring 5, the first contact 5a when in use, engaging a first pole of a battery 3a in the compartment as the cover is being closed, the second electrical contact 5b, 5c resiliently engaging points 6b, 6a of a latching spring 6 as the cover is being closed, and the spring 6 being in circuit with a current consuming device. The apparatus may be a photographic or cinematographic camera or a flash unit. When a nose 4b of the cover 4 is released by moving a member 6d of the spring 6 upwards, the cover 4 springs open due to the resilience of the contacts 5b, 5c, and of the contact 5a if batteries are present in the compartment. A resilient counter contact 2 projects into the compartment 1a to provide the contact terminal for the second pole of batteries 3, 3a, and to eject at least partially the batteries when the cover 4 is released as described above.
Patent GB-1265309-A (GB)
IPC: H01H11/04
Filed: 1968-08-09
Abstract: 1,265,309. Welding by fusion. JOSEPH LUCAS (INDUSTRIES) Ltd. 14 July, 1969 [9 Aug., 1968], No. 38064/68. Heading B3R. In electron beam welding an electrical contact 11, e.g. of a road vehicle distributer contact breaker, to a support 12, wherein the contact melting point is higher than that of the support, the beam melts a portion of the support and heats an adjacent area of the contact to a temperature between the contact and support melting points, so that the melted support part flows to said area of the contact and, on cooling, forms the required joint between the contact and the support.  As shown, wherein the contact 11 and support 12 are of tungsten and spring steel respectively, the contact is supported in facial contact with the support so as to be exposed through a circular hole 13 in the support. The electron beam is moved in a circular path parallel to the hole edge and is such that its axis 15 impinges on the contact adjacent the hole edge and that a divergent part thereof impinges on the support. The simultaneous melting of the support and heating of the contact could, alternatively, be effected by suitably controlling beam density and/or traverse path, e.g. the beam focus could be on or below the contact and the beam movement sinusoidal, or the electron accelerating voltage could be suitably controlled.
Patent GB-1290050-A (GB)
IPC: C02F1/08
Filed: 1970-10-09
Abstract: 1290050 Evaporators, film type; desalination of water AEROJET-GENERAL CORP 9 Oct 1970 [15 Dec 1969] 48119/70 Heading B1B [Also in Division F4] In order to increase the rate of vaporization in a distillation apparatus comprising a bundle of parallel metal tubes wherein a downflowing film of distilland is heated by heat exchange with a hot condensible vapour, the heat exchange wall 30 (Figs. 2 and 3) is provided with a plurality of dimples 31, and the wall thickness t d  of the dimpled portions of the wall is less than the wall thickness t u  of the undimpled portions. The dimples, which may protrude from either surface, or from both surfaces, of the wall are so disposed that the liquid flowpaths of distilland and/or heating- vapour condensate down the surface(s) are tortuous in a vertical direction. The dimples may be arranged in square-, triangular-, or diamond-shaped pattern. The apparatus shown in Fig. 1 is suitable for the production of fresh water from saline water, supplied through conduit 16. The saline water flows down the inner surfaces of tubes 19, 19a which are externally heated by steam supplied, e.g. from a turbine, through conduit 17. Dimples are provided on both surfaces of the tubes. The steam evolved from the saline water passes through conduit 21 to a condenser to give the required fresh water. Concentrated brine is discharged through conduit 20. The condensate of the heating-steam, which has flowed down the outer surface of the tubes and drips off a baffle (not shown), is discharged through conduit 18. The heat transfer material may be copper, copper-nickel alloy, copper-iron alloy, or aluminium-brass alloy.
Patent GB-1290748-A (GB)
IPC: C07C309/51
Filed: 1970-02-11
Abstract: 1290748 Preparation of 4,4<SP>1</SP>- diaminodiphenylurea-2,2<SP>1</SP>-disulphonic acid and its sodium and potassium salts IMPERIAL CHEMICAL INDUSTRIES Ltd 22 May 1970 [11 Feb 1970] 6563/70 Heading C2C 4,4<SP>1</SP> - Diaminodiphenylurea - 2,2<SP>1</SP>- disulphonic acid and its sodium and potassium salts are prepared by subjecting a 4,4<SP>1</SP>-diacylamino-diphenyl urea-2,2<SP>1</SP>-disulphonic acid to hydrolysis and if necessary neutralization in aqueous medium. The intermediate 4,41-diacetylamino-diphenylurea-2,2<SP>1</SP>-disulphonic acid, used in the examples is obtained by the phosgenation of 4-aminoacetanilide-3-sulphonic acid.
Patent GB-1294892-A (GB)
IPC: H04N9/083
Filed: 1969-11-10
Abstract: 1294892 Optical filters RCA CORPORATION 10 Nov 1969 [12 Nov 1968] 54929/69 Heading G2J [Also in Division H4] The non-ideal absorption characters of striped colour filters of the type used in conjunction with colour television cameras to produce separated colour component signals superimposed on a carrier wave leads to colour imbalance. Thus a filter composed of interdigitated cyan transmissive and transparent strips may undesirably absorb some of the green light, which leads to enforcement of the red and reduction of the green signal components. The imbalance may be corrected by replacing the transparent strips by strips which absorb the same colour is that undesirably absorbed by the coloured strips, and to substantially the same extent, i.e., in the present use with desaturated magenta or neutral grey strips. As particularly described two striped filters of equal pitch are disposed at 45 degrees to each other and include cyan and yellow transmissive strips respectively, interdigitated with either grey or magenta correcting strips, Figs.2 and 3 (not shown). The use of grey strips somewhat demodulates the red and blue components in this instance.
Patent GB-1295844-A (GB)
IPC: A01G23/087
Filed: 1969-11-14
Abstract: 1295844 Felling trees HARRINGTON MFG GO 14 Nov 1969 55915/69 Heading A1E A timber shearing device hydraulically operated by cylinder 38 comprises a jaw member 10 having upper and lower plates 12, 14, a blade 20 pivotally mounted to move between plates 12 and 14 towards a jaw face 16, and a member 46 attached to the upper plate 12 of the jaw member and extending from the jaw member such that its edge provided with a reinforcing strip 50 parallel to the edge of blade 20 when in the open position. The member 46 grips one side of the tree and if the blade sticks it provides leverage for removing the blade. A support framework 25 to which the lower jaw is attached by pivots 28 is provided with upstanding posts 26, 32 to which hydraulic cylinders 34, 36 are attached for raising and lowering the framework.
Patent GB-1296755-A (GB)
IPC: B63B35/73
Filed: 1970-02-03
Abstract: 1296755 Collapsible boats ETABS KALKER J J B BODINIER and G BODINIER 3 Feb 1970 [4 Feb 1969 3 June 1969] 5142/70 Heading B7A A collapsible boat for carrying a caravan 2 comprises a pair of parallel floats 5, e.g. inflatable, housed in collapsible cases 6 with upper walls forming runways for the caravan wheels, the caravan being secured to the boat by its jacks or legs. In one embodiment, Figs. 2 to 6 (not shown), the side and top walls of cases 6 are connected by sliding engagement of flanged portions and by hinges with removable pins, and the cases are interconnected by bracing rods and floor boards. The cases may be replaced by tubular framework housing the floats. An outboard motor may be mounted on panels 17.
Patent GB-1301875-A (GB)
IPC: A63B21/055
Filed: 1970-06-11
Abstract: 1301875 Exercising apparatus COMPRET NV 9 June 1971 [11 June 1970 7 Oct 1970] 28426/70 and 47693/70 Heading A6M An exercising device comprises two elongated members mounted so as to be able to slide towards one another and having a resilient member 5 acting between them which is extended on movement of handles 4, carried by the elongated members on the ends thereof remote from one another, towards one another. In one embodiment a handle 4 supports a tubular member 1, slidable within a tubular member 2 supported by the other handle 4, the inner end of tube 1 having a bush 7 through which a rod 8 affixed to the same handle 4 as the tube 2 passes, this rod having a pulley 9 at its inner end around which a resilient member 5 passes to be connected to the bush 7. The rod 8 may have as an alternative a flange at its end between which flange and the bush 7 the resilient member extends and is affixed to. A compression spring may also be fitted between the flange and the handle 4 remote from the bush 7. In each embodiment a rope 12 which may be in two sections or endless, passing through the handles 4, joins these, pulling on opposite sides of the rope 12 allowing the device to be used as an exerciser to be extended rather than compressed. A sliding scale performance meter may also be fitted.
Patent GB-1307817-A (GB)
Title: Nitrogen-containing alloys
IPC: C22C1/00
Filed: 1969-03-27
Abstract: 1307817 Producing nitrogen alloys MUREX Ltd 31 March 1970 [27 March 1969] 16200/69 Heading C7D [Also in Division C1] A master alloy containing N and one more of the metals V, Nb, Ta, Ti and Zr for adding to a metal, e.g. steel, is produced by heating a salt of an acid of the metal(s) in a nitrogenous atmosphere in the presence of C. An ammonium salt of the desired metal may be used, dissociating during heating to produce an atmosphere containing N 2  and H 2 , at least part of the nitrogenous atmosphere, or a metal (e.g. Na, K, Ca, Mg, Ni, or Mn) salt of the desired metal may be used, the reaction being carries out in an atmosphere of cracked ammonia. Both H 2  and C act as reducing agents; e.g. ammonia (meta or poly) vanadate mixed with C and heated in a closed crucible, or formed into briquettes and heated in a vertical vessil through which nitrogenous gas is passed, produces a V alloy containing between 0À5 and 22% N. The product may be mixed with additional V or other alloying metal, and added to the metal to be alloyed, e.g. steel as sintered briquettes, loose powder or "canned". Specification 1269639 is referred to.
Patent GB-1311535-A (GB)
Title: Microwave switches
IPC: H01P1/12
Filed: 1970-09-21
Abstract: 1311535 Waveguide switches DECCA Ltd 21 Sept 1971 [21 Sept 1970] 44886/70 Heading H1W The arm 4 of a waveguide Y-junction 2, 3, 4 is selectively coupled to one of the side arms 2, 3 by switches in the form of conversely movable plungers 8, 8a. The plungers extend parallel to the short axes of the (rectangular) waveguides 2, 3 and are shown in one of their extreme positions. They are rigidly coupled to each other by links 16, 16a, 17. Each plunger extends through a conductive sleeve 11, forming a choke, held in place by a dielectric plug 13. Each plunger terminates in a plate 9 which lies flush with the wall of the waveguide when the plunger is withdrawn. The Y-junction is made by providing channels in a block 1 and closing the channels with a plate (15, Fig. 2, not shown), part of the inner surface of which forms one of the narrow walls of each waveguide.
Patent GB-1327747-A (GB)
Title: Universal check digit verifier/generator systems
IPC: G06F11/10
Filed: 1971-02-17
Abstract: 1327747 Check digit generator INTERNATIONAL COMPUTERS Ltd 17 Feb 1971 4803/71 Heading G4A A variable check digit generator/verifier is selectively controlled to produce a predetermined set of weighted values or to select one of a number of sets of weighted values and to calculate a check digit from input digits using the selected weighted values and a selected modulus N, the check digit being indicated as a function of a constant remainder, as a modulus N remainder, or as a modulus N complement. A simple or extended mode of operation may be selected in which a check digit appended to the input digits is verified or the check digit is verified or generated from the input digits. Calculation of the check digit may include multiplication of alternate input digits by 2 and cross-adding the digits of each result.
Patent GB-1331041-A (GB)
Title: Process for the production of expanded thermoplastics materials
IPC: C08J9/10
Filed: 1970-09-24
Abstract: 1331041 Foamed olefin polymers T N ATKINSON 24 Sept 1970 [24 June 1969] 31895/69 Heading C3C Polymers and copolymers of olefines, particularly polyethylene and polypropylene, are foamed by heating the polymer with an organic peroxide and a heat-decomposable blowing agent, said heating being effected by contacting the mixture with a hot liquid (e.g. a fused salt bath) or a hot fluidized bed. The resultant foams contain at least 75% of the total cell number of closed cells; specified peroxides are dicumyl peroxide, 2,5-dimethyl-2,5-di-(t-butylperoxy) - hexane, di - t - butyl - perterephthalate and t-butyl hydroperoxide; specified blowing agents are p,p<SP>1</SP>-oxybisbenzenesulphonylhydrazide, azodicarbonamide and dinitrosopentamethylenetetramine, and the foaming is normally conducted at 150-280‹ C., preferably in two stages: (i) at 120-190‹ C., (ii) at 150- 270‹ C.; the second stage being at a higher temperature. Additives that may be present include ethylene/vinyl acetate copolymer, ethylene/acrylate copolymer, natural and/or synthetic rubbers, zinc oxide, sodium lauryl sulphate, stearic acid, mica, antimony oxide and chlorinated materials. The process may be effected in a mould or by continuous extrusion through a bath of the hot liquid.