baber/WOPTO huggingface dataset:
Patent GB-883433-A (GB)
Title: Improvements in or relating to electro-mechanical transducers
IPC: G01L1/22
Filed: 1957-12-17
Abstract: 883,433. Strain-wire transducers; pressure measurement. CONSOLIDATED ELECTRODYNAMICS CORPORATION. Dec. 17, 1957 [Dec. 20, 1956], No. 39137/57. Class 40 (1). [Also in Group XIX]  A force transducer comprises a pair of flexible flat springs mounted in a frame, each spring having a plurality of arms extending from a common plane so that some of the arms are offset in one direction from the common plane and the others are offset in the opposite direction from the common plane, means for applying a force at a common point in the common plane and means for supporting strainsensitive wires on the sides of the arms facing the common plane. In Fig. 1, axial force is applied at 30 to a bar which is fastened to the central portions of two flat springs. One spring has four upwardlydirected sloping portions 16 leading to four flat arms 14 in a plane above that of the central portion 12. The other spring has four downwardlydirected sloping portions 16a leading to four flat arms 14a in a plane below that of the central portion. The lower arms are staggered with respect to the upper, and all eight are fastened to a circular frame 10. Application of the axial force at 30 causes one spring to flex towards the other and the latter to flex away from the first. These deflections are sensed by strain-sensitive wires wound round pillars 22 and 24 attached to the two sets of arms of the respective springs. Each wire is bifilar, and the four windings so arranged are connected to form a bridge circuit. This arrangement is stated to be insensitive to forces other than axial, and insensitive to temperature changes since all the wires are equally spaced from metal surfaces. The whole unit may be less than “inch long by ¢ inch diameter. The leads are attached via ceramic insulators via holes in the casing (Fig. 3, not shown). In an alternative version (Fig. 7, not shown), each spring has two arms only, and the pillars are arranged with their axes parallel to the arms of the other spring. The two windings are not bifilar but are located on opposite ends of the pillars.   Measuring other variables.-The force to be measured may be produced by pressure, displacement or acceleration, or may be a centrifugal force. For measuring pressure (Fig. 2, not shown), the force rod is attached to a diaphragm and can move axially under applied pressure as far as a stop. Heat dissipaters prevent temperature differences arising between the windings. A reference pressure may be connected to the other side of the diaphragm, or alternatively (Fig. 4),the rod 70 passes right through the unit and carries diaphragms 67, 68 at both ends to measure pressure differences. In this case the heat dissipaters are in the form of stepped concentric circles 79, 80, 81. The unit is mounted in an adapter (Fig. 6), comprising two halves 85 and 86, and the two pressures to be compared are connected at 90 and 92.
Patent GB-1349394-A (GB)
Title: Preswelled cellulose films and process therefor
IPC: C08J7/02
Filed: 1971-08-20
Abstract: 1349394 Regenerated cellulose membrane; dialyser GENERAL ELECTRIC CO 20 Aug 1971 [18 Sept 1970] 39224/71 Heading B1X [Also in Division B5] A dialysis apparatus comprises a preswelled membrane 16 secured by an adhesive, e.g. isopropyl 2-cyanoacrylate to one side of a polyvinyl chloride frame 12. Optionally a second frame 14 can be attached to the other side of membrane 16, forming a sandwich. The membrane is made of regenerated cellulose, preferably cupramonium cellulose, preswollen with glycerin, and may be mounted on the frame before or after the swelling treatment. The glycerin is replaced by water as soon as the membrane is put to use. The membrane may be made by preswelling a dry film with water, the water then being replaced by glycerin; alternatively a 'neverdried' film, washed with water, may be so treated. Such films may be stored and mounted for use as dialysis membranes without any further swelling treatment, or such film may be mounted prior to storage. Fig. 3 shows a membrane mounted in a dialysis blockin an instrument adapted to analyse molecules, e.g. sugars, dialyzed from a fluid, e.g. blood, circulated on one side of the membrane into an analysis fluid circulated on the other side of the membrane.
Patent GB-1397911-A (GB)
Title: Damped inertia-operated electrical switch
IPC: H01H35/02
Filed: 1973-08-20
Abstract: 1397911 Inertia switches SEALECTRO CORP 20 Aug 1973 [13 Dec 1972] 39338/73 Heading H1N A pendulum comprising a conductive suspension 14 and metal bob 16 is secured to a hollow cylindrical container 10 such that the suspension 14 forms one of the switch terminals while a knife-edge 18 on the bob 16 co-operates with a serrated inner surface of an annular contact ring 25; a conductive tube 23 connected to ring 25 forms the other terminal of the switch, and a viscous fluid in the container 10 covers the pendulum bob 16 and contact ring 25. Preferably the container is of plastics material, the suspension 14 comprises a beryllium copper wire, and the container 10 is filled with silicone oil via the tube 23 which is then sealed by a plug (27, Fig. 2, not shown) of self-setting plastics material.
Patent GB-1154470-A (GB)
Title: A Dental Drilling Handpiece incorporating a Fractional Horsepower Motor connected to Gearing by means of a Rigid Drive
IPC: H02P7/288
Filed: 1966-09-02
Abstract: 1,154,470. Control of D.C. motors. SIEMENS - REINIGER - WERKE A.G. 2 Sept., 1966 [2 Sept., 1965], No. 39440/66. Heading H2J. [Also in Division G3] The rate of acceleration from stand-still of a fractional horsepower D.C. motor is determined by an impedance which varies linearly with respect to time until it reaches a steady value. In one arrangement, a capacitor is connected in parallel, and a resistor with an on-off switch in series, with the armature. Alternatively, the capacitor may be replaced by a series-connected choke. In other embodiments transistors in series or parallel with the armature are associated with R.C. networks for timed control of base potential. As shown, transistor 31, in series with armature 25, is controlled by amplifier 49 which compares a reference signal from potentiometer 45 with a signal representing the back-E.M.F. from a resistor network, comprising the armature. The motor is started by opening switch 50 so that capacitor 51 is charged through resistor 48 to control the rate of change of reference potential applied to the amplifier 49. The motor forms part of a dental drilling handpiece, and has a permanent magnet field. The motor is coupled to gearing by a rigid drive.
Patent GB-1410757-A (GB)
Title: Curtains
IPC: D04B21/10
Filed: 1971-08-24
Abstract: 1410757 Curtains TOOTAL Ltd 8 Sept 1972 [24 Aug 1971 23 Oct 1971] 39551/71 and 49341/71 Heading A4S [ Also in Division D1] An e.g.warp knitted curtain fabric has an integral strip or tape section constituting a heading and incorporating at least one draw thread 2a, 2b so that the fabric may be drawn up into pleats. This strip may be folded over and secured to the fabric to form a hem to receive a curtain rod. The strip may include a thread 2c, 2d which, when the fabric is drawn up forms loops to be engaged by curtain hooks. The fabric which may be made from polyester yarns comprises chains and laid-in wefts 3 which are omitted at intervals to form spaces 3a which allow the fabric to fold readily into uniform pleats. A similar structure without threads 2c, 2d is shown in Fig.3.
Patent GB-879739-A (GB)
Title: Improvements in or relating to vehicle suspension systems
IPC: B60G11/23
Filed: 1958-12-10
Abstract: 879,739. Road vehicle spring-suspensions. REGIE NATIONALE DES USINES RENAULT. Dec. 10, 1958 [Dec. 30, 1957], No. 39867/58. Class 108(2). Each wishbone link 1 in a road vehicle independent wheel suspension is mounted on a pivot 9 on the vehicle frame 10 in series with rubber bush joints 6, 7, 8. The inner bush 8 is freely rotatable on the pivot 9 between limits defined by stops 12, 12. Thus for part of the deflection of link 1, the only resistance encountered is that of a main coil suspension spring (not shown). Thereafter the resilience of the joints 6, 7, 8 is added to that of the coil spring. The resilience of the pivots of a second wishbone link maybe brought in at another predetermined point.
Patent GB-1496974-A (GB)
Title: Infinitely variable cone pulley transmission
IPC: F16H9/12
Filed: 1975-09-30
Abstract: 1496974 Expanding pulley gear PIV ANTRIEB WERNER REIMERS KG 30 Sept 1975 [19 Oct 1974] 39918/75 Heading F2D In an expanding pulley which comprises a substantially axially fixed flange 2 and an axially movable flange 3, these being mounted on a shaft 1 so as to be rotatable relative thereto, and in which a pressure-applying cam-androller device couples the flange 3 to the shaft 1 so that the pressure is torque-responsive, the axially fixed flange 2 is axially supported by a rolling thrust bearing 18 acting between radial surfaces of the disc 2 and a bearing disc 20 and the bearing disc 20 is in turn supported against a support disc 16 by a radially extending elastomeric or grease layer 19. A ring 21 radially encloses the layer 21. The bearing disc 20 may be a diaphragm, capable of flexing (Fig. 2, not shown). The cam-and-roller device has rollers 11 between cam sleeves 9 and 10 having mutually facing cam tracks (not shown), a spring 13 holding rollers and tracks in contact. Additional pressure on disc 3 may be supplied hydraulically to move a cylinder 14 within which sleeve 9 forms a piston.
Patent GB-1472539-A (GB)
Title: Method of manufacturing ferromagnetic ferrite cores
IPC: C04B35/26
Filed: 1974-07-03
Abstract: 1472539 Manganese zinc ferrites MULLARD Ltd 3 July 1974 [24 Aug 1973] 40202/73 Heading C1J A ferromagnetic ferrite core is manufactured by wet grinding a mixture comprising Fe 2 O 3 , ZnO, a manganese oxide, and optionally one or more of SnO 2 , TiO 2 , SiO 2 , CaO, OuO and MgO and/or one or more of a compound of Sn, Ti, Si, Ca, Cu and Mg decomposable to the oxide on heating, drying the resultant, slurry, forming into shape of core and sintering, wherein the particle sizes of the materials forming the mixture are less than 1 micron. Examples describe MnZnMgCu ferrites, MnZnFe<SP>2+</SP> ferrites containing tin and optionally titanium and MnZn ferrites optionally contain SiO 2  and/or CaO.
Patent GB-1521910-A (GB)
Title: Washing and cleaning process and apparatus therefor
IPC: B01D15/04
Filed: 1975-10-02
Abstract: 1521910 Washing process HENKEL KG AUF AKTIEN 2 Oct 1975 [3 Oct 1974] 40235/75 Heading C5D Materials are washed by a process comprising (1) contacting the materials with a washing liquor containing less than 0.6 g./l. of phosphorus in the presence of a water-insoluble cation-exchanger capable of binding hardness in the water and in impurities, having a calcium binding capacity of at least 50 mg. CaO/g., containing bound water and of the formula (Cat 2/n O) x .Me 2 O 3 .(SiO 2 ) y , wherein Cat is a cation of valency n exchangeable with Ca, x is 0.7 to 1.5, Me is Al or B and y is 0.8 to 6, and (2) passing the liquor continuously or intermittently through a filter which separates the cationexchanger from the liquor. Apparatus for the process may include a circulating pump.
Patent GB-1490603-A (GB)
Title: Glycerides with anti-inflammatory properties
IPC: C07C69/66
Filed: 1975-10-02
Abstract: 1490603 Triglycerides ABBOTT LABORATORIES 2 Oct 1975 [7 Nov 1974] 40420/75 Heading C2C The invention comprises compounds of the formula where R is an acyl derivative of the formula CH 3 -X-CO where X is a single bond or a saturated or ethelenically unsaturated, divalent aliphatic chain having up to 18 carbon atoms and R<SP>1</SP> is the acyl moiety of an organic, pharmaceutically acceptable acid known to have antiinflammatory properties. The compounds may be prepared by reacting a compound of the formula with the acid chloride of an organic, pharmaceutically acceptable acid known to have antiinflammatory properties.
Patent GB-925217-A (GB)
Title: Improvements in or relating to the production of polyethylene terephthalate
Inventor: RIEHL LOTHAR
IPC: C08G63/87
Filed: 1960-11-24
Abstract: In the manufacture of polyethylene terephthalate by the polycondensation of bis(2-hydroxyethyl)-terephthalate, polymers of improved colour are obtained by using as a catalyst (a) a pinacone of formula <FORM:0925217/IV(a)/1> where R1, R2, R3 and R4 are alkyl or aryl radicals, or (b) an alkali metal derivative of such a pinacone. Specified pinacones are 2:3-dimethyl-butane-2:3-diol, 2:3-diphenyl-butane-2:3-diol and 2-methyl-3-phenyl-butane-2:3-diol. Antimony trioxide may be used as an additional catalyst.  Titanium dioxide may also be present during the polyesterification.  The bis-(2-hydroxyethyl)-terephthalate may be prepared by transesterifying dimethyl terephthalate with ethylene glycol in the presence of zinc acetate and the polycondensation catalyst may be present during the transesterification reaction.
Patent GB-1471235-A (GB)
Title: Amoxycillin derivatives
IPC: A61K31/43
Filed: 1974-09-18
Abstract: 1471235 α - Carboxyamino - p - hydroxybenzylpenicillins BEECHAM GROUP Ltd 3 Sept 1975 [18 Sept 1974] 40661/74 Heading C2C [Also in Division A5] Compounds I in which at least one of M and M<SP>1</SP> is Na+, K<SP>+</SP>, NH 4 + or a substituted ammonium ion and the other is hydrogen or one of the above ions are prepared by reacting amoxycillin and an appropriate carbonate or bicarbonate or mixtures thereof in an aqueous medium. Compounds I (M = H) are also prepared by removal of a protecting group R from a compound II by hydrolysis or hydrogenolysis. Compounds I have anti-bacterial activity.
Patent GB-1481191-A (GB)
Title: Thermal electric switches
IPC: H01H9/04
Filed: 1974-09-18
Abstract: 1481191 Thermal switches; switch covers THERMIK-GERATEBAU GmbH 18 Sept 1974 [19 Sept 1973] 40731/74 Heading H1N A thermal switch comprises a casing 1 with terminals 7 at one end, terminals 7 being provided with connecting wires (not shown) and completely embedded in cast resin 11, casing 1 being provided externally with a dirt and moisture excluding, electrically insulating, cap 8 of plastics material which is fitted on to casing 1 from the opposite end to terminals 7 and which closely engages the end and side wall of casing 1. Part 10 of casing 8 projects beyond the connecting end face of the casing and may be embedded in the casting resin, as shown, or may be left upstanding and serving as a filling edge for the casting resin. The thermal switch shown has a spring 2 carrying contact 3 and an actuating bimetal 4.
Patent GB-866358-A (GB)
Title: A method of and apparatus for obtaining smooth surfaces on films
IPC: B29C48/08
Filed: 1959-12-01
Abstract: 866,358. Cathode processing. SYLVANIA ELECTRIC PRODUCTS Inc. Dec. 1, 1959 [Dec. 30, 1958], No. 40862/59. Class 39(1). A method of forming a film, preferably the emissive film for the sleeve of a thermionic cathode, of even thickness and with smooth surfaces comprises the steps of flowing a suspension of solids preferably triple carbonates of Ca, Ba, Sr in-a binder dissolved in a volatile liquid on to a support, preferably a rotating wheel 22, Fig. 1, to form the film, heating the film by hot air from box 50 to partially set it removing the film from the support on to an Al conveyer 62 of mesh, and completing the drying of the film by an oven 66. The binder is of ethylcellulose and is dissolved in a mixture of toluene, ethanol and pentacetate as described in Specification 787,926 and the triple carbonate suspension is fed from metal hopper 10 to casting wheel 22 having a central drum 47 of Fe and a polished rim 48 of nickel steel, Ni or chrome. A water soaked sponge 26 sponges off dust or dirt from the wheel and rotating drum 34 applies a liquid film to the wheel 22 to promote stripping of the main film therefrom. The drum 34 has a shaft 31 on which are strung a large number of thin polyethylene discs 32 held between lucite end discs 34. The discs 32 dip into a tank of liquid e.g. 2, 2 aminoethylamino ethanol. The thickness of the liquid film is adjusted by adjusting the lucite end discs 34 on shaft 31 or by shifting shaft 31 towards or away from wheel 22 by differential screw 38. For this latter purpose, the tank is slidable on base 42. The speed of shaft 31 is variable. Two lamps 46 heat the polished surface of the wheel. The heater 50 and oven 66 have finned electrical resistance rods. An air stripper 64 blows air through nozzles on to the underside of the film. The tilting of hopper 10 is controlled by differential screw 148. The discharge tube may be grid controlled.
Patent GB-1079526-A (GB)
Title: Improvements in or relating to the packaging of cheese
IPC: B65B25/10
Filed: 1964-10-09
Abstract: 1,079,526. Packaging cheese. FROMAGERIES BEL - LA VACHE QUI RIT. Oct. 9, 1964, No. 41275/64. Addition to 1,011,361. Heading B8C. A machine for packaging melted cheese into cubes as described in Specification 1,011,361 is provided with a rotary vat 4 having a series of radial openings 13 containing measuring devices 15. Each measuring device comprises a cylinder 15 which is moved upwards under the action of a roller 17 following a cam 18. This brings the aperture 16 into coincidence with the aperture 14 and allows the device to be filled. After the device is fitted the cylinder 15 moves down and the plate 24 is removed to allow the molten cheese to flow out of the device through a nozzle 23. The cheese is forced out of the cylinder by a piston 19 controlled by a two-part cam 21, 22. The portion 22 of the cam is adjustable vertically to enable the highest position of the piston to be altered to vary the capacity of the measuring device. The movement of the closing plate 24 is controlled by cams 25 and 26. The vat 4 may be provided with double walls, as shown, through which circulates a hot fluid in order to keep the cheese molten.
Patent GB-1529444-A (GB)
Title: Bottle closures
IPC: B65D51/16
Filed: 1975-10-09
Abstract: 1529444 Closures J H KARLAN 9 Oct 1975 41415/75 Addition to 1281929 Heading B8T A closure 10 of flexible thermosetting synthetic material, e.g. ethylene-propylene rubber, comprises inner and outer annular walls 14, 17 depending from a base 13, the inner wall 17  having corrugations 18 which sealingly engage the inner surface of a bottle neck, a pressure relief portion, e.g. a thinned disc 28 or a V- shaped groove on the underside of the base, Fig. 4 (not shown), being provided to burst at a preselected pressure level in the bottle. The outer wall 14 is extended by a skirt 19 joined to the wall 12 at severable junction 20. The closure extended in this manner and a method of applying it and is the subject of Specification 1,529,445. The skirt 19 includes an inner groove 24 to engage bead 21 on the bottle and an external annular shoulder 33 for engagement with a capping tool, Fig. 5 (not shown). The length of the wall 14 and skirt 19 is such that the skirt is stretched axially for engagement with bead 21. Wall 14 engages via groove 15 a bottle thread 16.
Patent GB-1429568-A (GB)
Title: Fire-arms
IPC: F41A9/27
Filed: 1973-09-05
Abstract: 1429568 Recoil operated breech mechanisms in small arms INDUSTRIE-WERKE KARLSRUHE AUGSBURG AG 5 Sept 1973 [23 Sept 1972] 41658/73 Heading F3C A hand gun has a drum 2 having peripherally spaced cartridge chambers 2a parallel to its barrel 3, the drum having sealing means sealing it with the barrel during firing, a breech mechanism, acting on a gas piston and having sealing means, is adapted to enter into a chamber aligned with the barrel to seal the chamber against gas pressure upon firing and having a cam mechanism for automatically effecting a stepwise rotation of the drum, means for locking the drum during firing and, further means co-operating with a breech block 11 of the mechanism being provided for misfired cartridge ejection. A sealing ring 7 is pressed against the gun barrel 3 by the resulting gas during firing of a caseless cartridge 5a, 5b passing along bores 2b. The cartridge projectile 5a is fired by a firing pin or by electrical detonation as shown from a lead electrode 12 insulated from the other metal parts. This is held in a sleeve 8 held in two axially disposed sleeves 9, 10 mutually engaging by complementary coned surfaces, rearward recoil of the sleeve 8 causing locking of the sleeve 9 in the drum 2 by means of a shoulder of the sleeve 8 and of the sleeve 9. The drum 2, having five chambers, is indexed by a spring loaded pin of the cam mechanism in the breechblock 11, during breechblock recoil, traversing angled grooves 2g, Fig. 4, between successive axial grooves 2d which are traversed during forward breechblock movement for firing. If misfiring occurs, the drum is manually indexed once so that the cartridge is displaced laterally, a lever, operated by breechblock movement and spring aided, actuating a member to contact the nose end of the projectile 5a to eject the cartridge 5 from the rear end of the drum 3. The drum 3 is fed from a magazine, cartridges being fed into the drum successively.
Patent GB-416952-A (GB)
Abstract: 416,952. Controlling sales; moving signs. LOMNITZ, A., 50, Gordon Square, London. Sept. 5, 1933, No. 24600. Convention date, Jan. 18. [Classes 3 (i) and 116.] The invention relates to a device for facilitating the choice from co-ordinated groups of elements of a single group which satisfies a number of prescribed conditions and is described in relation to the indication in a shop of a group of articles within a predetermined price range and satisfying other conditions such as the age, social status, &c. of the person for whom the article is intended. The device consists of a casing 1 having a front panel 2 provided with a slot 3 and with groups 20, 22 of panels 4, 5 normally closed by shutters 19, 23. A knob 12 is connected by a spindle 13 to a roller 17 carrying a band 16, the upper portion of which passes across the slot 3, whilst the lower portion has rows and columns of coordinated information. The upper portion has lengths coloured according to panels 4 and each coloured length is subdivided into portions having further conditions, such as a number of age limits. In accordance with the first condition of the choice the appropriate shutter 19 of a group 20 is actuated to the left to disclose an illuminated panel 4 which bears an indication in definite colours, e.g. green and white. The knob 12 is rotated until the appropriate subdivision in the colours similar to those displayed at the panel 4 is opposite to reference mark 24, and in accordance with a further condition, e.g. a price range, indicated on the front of the device the appropriate shutter 23 is actuated to expose at the illuminated panel 5 a numerical indication. The operator obtains for the intending purchaser a ticket corresponding to the number exposed and indicating a list of one or more articles satisfying the prescribed conditions. The actuation of the shutter 23 after the band 16 has been adjusted in accordance with the final condition may effect the ejection of a ticket bearing the numerical indication or carrying a list of articles.
Patent GB-880663-A (GB)
Title: Improvements in or relating to mountings for transparencies
IPC: G03B21/64
Filed: 1959-12-10
Abstract: 880,663. Transparency mountings. LEITZ G.m.b.H., E. Dec. 10, 1959 [Jan. 17, 1959], No. 42016/59. Class 98(2). A transparency mounting comprises a frame arranged for holding a transparency in an open window thereof, and a detachable transparent cover plate which fits into and fills the said window. Fig. 1b shows a frame formed by two cardboard sheets, enclosing the transparency 3 between them. The plate 5 is made of a transparent plastic material having lugs 6, 7 which are inserted between the transparency and the frame, so as to hold the plate in position. The lugs may extend the whole length of the plate, as in Fig. 6. The plate may be flat, concave, or convex, on one or both faces. Fig. 3 shows in cross-section a planoconvex plate, which is finely scored on the curved side which is to bear against the transparency, so as to prevent the formation of interference rings.