baber/WOPTO huggingface dataset:
Patent GB-1396876-A (GB)
Title: Bolt mechanism for sliding doors and other sliding panels
IPC: E05B65/08
Filed: 1971-11-18
Abstract: 1396876 Bolt mechanisms MARSLAND & CO LTD 17 Nov 1972 [18 Nov 1971] 53713/71 Heading E2A A bolt mechanism for a sliding panel e.g. a door 12 comprises a body 10, 11 having a rectilinear guidway slidably guiding a bolt 28 which has a portion 19 for manual acutation of the bolt 28. The bolt 28 carries a member 31 comprising a detent 32 which is laterally offset from but projects in a direction parallel to the lengthwise direction of the guidway. A locking element 37, 38 is provided mounted in the body and manually movable, when the bolt 28 is in its endmost position of sliding movement in the direction in which the detent 32 projects, into and out of a position blocking return movement of the bolt 28. As shown the member 31 is mounted on the bolt 28 by a screw 44 and by means of interengaging teeth on the member 31 and bolt 28 the position of the member 31 with respect to the bolt is adjustable. The bolt is held in the guidway by a spring loaded washer 18, the washer cooperates with a cylindrical surface 25 on the bolt 28 to thereby hold the bolt 28 in its two end positions. A key operated detent 40 is provided, the detent working in a V-shaped notch in the bolt 28 so that the latter can be operated by rotation of a key. The body is in two parts 10, 11 joined by screws 13.
Patent GB-1529998-A (GB)
Title: Transmissions
IPC: F16D23/06
Filed: 1976-12-23
Abstract: 1529998 Positive clutches CLARK EQUIPMENT CO 23 Dec 1976 [28 Jan 1976] 53843/76 Heading F2C In a synchronizing arrangement for a positive clutch, a pair of synchronizing friction rings 168, 170, which are movable together so that either one engages a friction element on a gear rotatably mounted on a shaft, to drive such gear until its speed of rotation synchronizes with that of an annular member 138 driven by the shaft whereupon gear teeth on the member 138 and gear can be intermeshed, are separated by split pins 176 which are each provided with a central annular groove 180 having at each side two surfaces 182a, 182b of different slope, and with resilient means separating the pin portions 178 which are accommodated in elongated recesses 188 in the rings 168, 170. The rings 168, 170 may be connected together by abutting blocker pin portions 158 which are attached to the respective rings 168, 170 by a rivet 167 and which together define a groove 160 located with clearance in a bore 152 provided in the member 138.
Patent GB-1150644-A (GB)
Title: Electrical Control Systems
Inventor: PRINGLE ANTHONY
IPC: G01K7/02
Filed: 1965-12-21
Abstract: 1,150,644. Temperature alarm systems. ENGLISH ELECTRIC CO. Ltd. 20 Dec.. 1966 [21 Dec., 1965], No. 54108/65. Headings G4N and G6C. [Also in Division G3] A control system is arranged to connect each of a plurality of groups of first electrical devices (e.g. thermocouples) in a continuously repeated sequence to a plurality of secondary electrical devices (e.g. amplifiers) arranged in groups in a specified manner. The invention is applicable to temperature protection in a nuclear reactor (Fig. 1, not shown) wherein three thermocouples are located in each of nine zones. The three thermocouples in the control zone of the reactor are permanently connected to trip amplifiers whilst the remaining thermocouples are cyclically connected by reed relays (Fig. 3, not shown) to further trip amplifiers. The reed relays are controlled by contacts of further reed relays, in turn controlled by logic and bi-stable circuits, the timing of individual energizing periods being determined by 5 second monostable circuits. The overall timing is controlled by 0À5 c/s. multivibrators.
Patent GB-1293989-A (GB)
Title: Process of grinding coffee beans
IPC: A23F5/12
Filed: 1970-11-13
Abstract: 1293989 Roast coffee GENERAL FOODS CORP 13 Nov 1970 [19 Nov 1969] 54243/70 Heading A2B Roasted coffee beans are compression flaked and the fragmented beans are thereafter gently granulated. The process may be applied to decaffeinated beans.
Patent GB-1139059-A (GB)
Title: Cam apparatus for independent needle knitting machines
IPC: D04B15/32
Filed: 1966-12-06
Abstract: 1,139,059. Knitting-machines. SINGER CO. 6 Dec., 1966 [8 Dec.; 1965], No. 54453/66. Heading D1C. Needle selection is achieved in a circular multifeed machine to produce patterning, such as tucking, or for welting by the provision at each feed of pivoted cams 50, 98 which can be raised or lowered to guide the butts of the short and long needles into a knitting, tucking or welting position. With the cams raised the butts engage them such that the needles are raised and subsequently lowered under stitch cams 68,118. When the cams are in a tucking position they each co-operate with a second pivoted spring biassed cam 70, 116 to guide the needles at a lower height. When the cams 50, 98 are lowered to welt height their end projection 51, 108 engages the cam 70, 116 and against the bias of the spring moves both cams to a low position. The arrangement is such that positions 52, 104, 54, and 110 as well as the other co-operating cams provide guiding channels for the needle butts throughout the majority of their passage through the cams. In addition the stitch cams and cams 70, 116 are mounted on a slidable part capable of vertical adjustment to enable the stitch length to be varied or adjusted.
Patent GB-1182315-A (GB)
Title: Improvements in or relating to Tunable Output Coupling Devices for Travelling Wave Tubes
IPC: H01J23/36
Filed: 1967-12-01
Abstract: 1,182,315. Travelling-wave tubes; tuned couplings. SIEMENS A.G. 1 Dec., 1967 [2 Dec., 1966], No. 54701/67. Headings H1D and H1W. An output coupling for a travelling-wave tube comprises a tuning slide with a rotatable coupling slot in its end-face. The travelling-wave tube is of the type described in German Specification 1,121,231 having a resonant delay line. As shown in Fig. 1, a H 10  wave at the output window of the resonator (not shown) is transformed to a H 11  in a circular waveguide 2 by means of a transition member 1. The waveguide 2 is in two parts coupled by a slidable cylindrical sleeve 3 whose axial position determines the output frequency of the tube. The output coupling factor is determined by the angular position of a narrow slot 5 in the endface 4 of the sleeve 3, this factor being a maximum when the slot is normal to the electric field of the H 11  wave. A central flange 9 on the sleeve 3 has arcuate slots 8 which engage guiding rods 7 and permit a rotation of 90 degrees. In the modification of Fig. 3 (not shown), the output waveguide 1 of the tube is circular and the polarization of the H 11  wave is determined by a short ridge. In the modification of Fig. 4, the whole of the output waveguide 2 is rectangular and tuning is effected by means of a rectangular piston 3 insulated from the walls of the waveguide by dielectric sliders (not shown). Pistonrod 12 is made of dielectric material and is rotatable in the piston 3. The end face of the piston is conductively plated except for a narrow diametral strip which provides the slot 5 (not shown on Fig. 4).
Patent GB-1478919-A (GB)
Title: Elecgrical resistor and process for its manufacture
IPC: H05B3/14
Filed: 1974-12-18
Abstract: 1478919 Electric connections HOECHST AG 18 Dec 1974 [18 Dec 1973] 54748/74 Heading H2E [Also in Divisions B3 and H5] To prevent deformation and changes in physical properties of an open mesh resistive fabric when a metal strip contact applied to one face is bonded through the mesh spaces to a second strip on the opposite face by pressing the contact strip by means of a pressure element, e.g. a punch or roller, against the second strip which is placed on a counter-element on the side of the fabric opposite to the metal strip contact, the pressing surface at least of the pressure element is elastomeric material whose Shore hardness A is from 25-80 and whose impact resistance is from 10 to 70%. The pressure element causes the contact strip to conform to any irregularities in the surface of the resistive fabric to ensure good electrical contact. The fabric material may be made of plastics, e.g. P.T.F.E., polyesters, expoxy resins, polyvinyl acetate, silicone rubber, or other non-conductors, e.g. rubber loaded with conductive particle, e.g. carbon black, graphite, copper, bronze, silver or aluminium and preferably reinforced with glass fibres or a coarse meshed fabric of natural or synthetic fibres. In addition the fabric material may be made of compressed carbon or graphite fibres. The contact strips may be applied to the same or opposite surfaces of the resistive fabric. The metal contact strips may be made of copper, silver, gold, aluminium or platinum group metals. The process is especially suitable for applying copper ribbon contact strips 2 to the delicate open mesh resistive heating fabric 1 shown. The fabric 1 is made of woven glass fibre impregnated with a mixture of carbon black graphite and a P.T.F.E. binder. Plastics or copper strips 4 having an adhesive layer conductively loaded with copper particles are applied to the fabric 1 on the side opposite to the contact strips 2 so that when the elastomeric pressing element is applied the contact strips 2 are deformed around the filaments of the fabric 1 without distorting them into adhesive contact with the copper strips 4. Instead of an adhesive layer loaded with conductive particles the copper backing strips 4 may have a solder layer which is caused to unite the strips 4 and 2 when melted by a heated counterpressure plate.
Patent GB-1445598-A (GB)
Title: Tube to tube plate joints
IPC: F28F/
Filed: 1974-11-08
Abstract: 1445598 Tube to plate joints MARSTON RADIATORS Ltd 8 Nov 1974 [27 Nov 1973] 55003/73 Heading F2G A tube plate 1 is formed with an aperture 2 with a collar 3 therearound, the collar having a portion perpendicular to the plane of the plate 1, and a tube 5 is disposed within the collar 3 and expanded therein to form a widened end 6 with a metal to metal seal with the collar 3. The collar may extend in the direction of the majority of the tube 5, as shown, as in the opposite direction, and may have a flared portion 4, or alternatively a plain straight-sided or waisted tubular portion on a flange extending parallel to the plate 1. The tube 5 preferably has a lower yield stress that that of the plate 1, and the tube may, if desired, be expanded only along a part of the length of the collar. The expansion may be effected by use of a mandrel or rotating rollers, and a mastic may be positioned between the tube and collar to fill any pores therebetween. In a further alternative arrangement the tube is expanded by means of a ferrule positioned therein and which is itself expanded within the tube.
Patent GB-1168659-A (GB)
Title: Short Length Tape Feeder.
IPC: B31B50/72
Filed: 1966-12-08
Abstract: 1,168,659. Applying adhesive tape. UNIVERSAL CORRUGATED BOX MACHINERY CORP. 8 Dec., 1966 [21 Jan., 1966],No. 55033/66. Heading B8F. The knife 75 cutting the adhesive tape in Specification 930,449 is prevented from rebounding, to effect a second cut, by weights 134c carried loosely on a shaft 134 on the knife, so that the weights lag behind when the knife is impelled downwardly, but catch up, to apply an impulse to the knife, after the knife has hit the anvil.
Patent GB-1390515-A (GB)
Title: Methods and apparatus for casting metal
IPC: B22D18/04
Filed: 1971-12-03
Abstract: 1390515 Casting processes DIMO HOLDINGS Ltd 26 Feb 1973 [3 Dec 1971] 56132/71 Heading B3F A method of casting comprises introducing molten metal into a cavity contained in a mould part 20 by applying gas pressure to the surface of molten metal contained in a crucible (2), Fig. 5 (not shown), and then moving a mould part 23 into said cavity to displace some of the metal contained therein and to apply pressure to the metal. In the embodiment shown, the metal passes to the cavity through a duct 10 the end 27 of which is closed off by the mould part 23 as the latter nears the end of its downward movement. In another embodiment, the duct 10 is closed by a sliding valve (18), Fig. 6 (not shown).
Patent GB-1216217-A (GB)
Title: Fluid flow valves
Inventor: HORHOTA GEORGE
IPC: F16K35/06
Filed: 1968-11-27
Abstract: 1,216,217. Stud and socket fastenings. G. HORHOTA. 27 Nov., 1968, No. 56181/68. Heading E2B. i[Also in Division F2] Rotation of a plug valve 16 can be prevented by inserting pin 25 into aligned bores 23, 24, the pin incorporating radially movable balls 26 (Fig. 8) which are retracted by key 58 to allow insertion of the pin and are then forced outwards into recesses 27 by plunger 53 upon removal of the key from the pin. As shown, the key has a rod 62 slidable in a sleeve 60, and the end of the rod is adapted to abut the bottom of a recess 65 in plunger 53 whilst the split end 60a of sleeve 60 fractionally engages in or around recess 60a. Such that, upon release of handle 59, spring 61 moves the whole assembly, including plunger 53 against spring 55 to allow retraction of balls 26 and insertion of the pin. The key is then maleased by depressing the head 64 of pin 62. The recesses 27 may be provided in a bush located in the plug or in a blind housing bore.
Patent GB-1377375-A (GB)
Title: Apparatus for heating and controlling the temperature of a cylinder  drum
IPC: D06C15/08
Filed: 1971-12-04
Abstract: 1377375 Measuring temperature electrically E B BATES 27 Nov 1972 [4 Dec 1971]  56390/71 Heading GIN [Also in Divisions G3 and H5] A fabric heating cylinder 1 driven by belt 6, has resistive heaters Z 1 -Z 6  mounted on a rod 4 and controlled by temperature sensors TP 1 -TP 6  in contact with the outer surface of the cylinder. The sensors may be iron/nickel thermocouples connected to conventional controllers or thermistors connected in bridge circuits operating relays to control the heaters. The controllers for use with the thermocouples may comprise galvanometers in which a pointer with an aperture moves between a light source and a photo-cell Fig. 7 (not shown).
Patent GB-1359633-A (GB)
Title: Copolymers
IPC: C08F210/18
Filed: 1971-06-17
Abstract: 1359633 Sulphur-curable elastomeric tetrapolymers; rubber compositions E I DU PONT DE NEMOURS & CO 17 June 1971 56458/73 Divided out of 1359039 Addition to 1195625 Headings C3P and C3Q A sulphur-curable elastomer comprises an amorphous polymer comprising (a) 25%-75% by wt. of ethylene units; (b) units derived from a C 20 -C 62  diester of a dicarboxylic acid and a 2-(hydroxyalkyl or hydroxyalkenyl)-5-norbornene, the amount of this monomer used in the preparation of the polymer being 0À01-0À1 moles/kg. of polymer and the units thus introduced not exceeding 15% by wt. of the polymer; (c) sufficient units derived from a non- conjugated diolefin containing only one readily polymerizable double bond to provide 0À1-4À0 moles of units/kg. of polymer; and (d) propylene units. The polymers have a saturated chain with pendant double bonds in the units (c) and branching points produced by the units (b). They are prepared by means of an organic solvent-soluble co-ordination catalyst. An example describes the continuous copolymerization of ethylene, propylene, 1,4-hexadiene and bis - (5 - norbornene - 2 - methanol)adipate using a VCl 4 /i-Bu 2 AlCl catalyst. The polymers may be compounded with chain-unsaturated elastomers, e.g. natural rubber and/or neoprene, and cured by conventional means.
Patent GB-1422030-A (GB)
Title: Preparation of block copolymers for sheets of films
IPC: C08F297/04
Filed: 1973-12-06
Abstract: 1422030 Block copolymerization DENKI KAGAKU KOGYO KK 6 Dec 1973 56644/73 Heading C3P Block copolymers are obtained by (a) polymerizing a mixture of a conjugated diene and 30 to 70% of styrene or an alkyl-substituted styrene in a non-polar solvent in the presence of a polyfunctional organolithium initiator to at least 40% diene conversion and (b) adding further styrene monomer, or a mixture thereof with up to 5% of a conjugated diene as a polymerization retardent, in sufficient amounts to ensure a final copolymer containing 70 to 85% styrene monomer, and completing the polymerization. In examples butadiene-styrene mixtures are polymerized using butadiene oligomer dilithium in benzene, followed by styrene or mixtures thereof with butadiene or isoprene, including comparative procedures just outside the above limits. Sheets and films with good low temperature impact strength may be formed from the polymers and may be used for packing refrigerated foodstuffs.
Patent GB-1286019-A (GB)
Title: Motor assembly
Inventor: BAUS HEINZ
IPC: F16F1/373
Filed: 1970-11-30
Abstract: 1286019 Resilient mountings H BAUS 30 Nov 1970 [1 Dec 1969] 56748/70 Heading F2S [Also in Division H2] A motor 10 is resiliently mounted in a housing (not shown) by two identical springs, each comprising a ring portion 2 attached to the housing and two semicircular arms 4, 16 integrally cantilevered from the ring portion and attached at their "free" ends 6, 12 to the motor. The springs are injection moulded from a thermoplastics material. The arms 4, 16 have an L-shaped cross-section and the free-ends carry projections 8 which engage in recesses in the motor. The radial width of the arms decreases from the cantilevered to the free end, and the thickness may also decrease.
Patent GB-1277129-A (GB)
Title: Ignition cable
IPC: H01B7/00
Filed: 1969-11-21
Abstract: 1277129 Electric cable DAVU WIRE & CABLES Ltd 9 Sept 1970 [21 Nov 1969] 57060/69 Heading H1A An ignition cable for use with an internal combustion engine comprises a core formed of polypropylene loaded with graphite particles. The core has an insulating sheath extruded over it to form a cable having a circular cross-section. The insulating sheath may be formed of natural or synthetic rubber or a synthetic plastics resin, e.g. a P.V.C. composition. The core is formed by extruding the propylene loaded with graphite particles; and the graphite loading is such that the linear resistance of the core is between 500 and 9000 ohms per foot.
Patent GB-1383758-A (GB)
Title: Polyamides
IPC: C08G69/26
Filed: 1971-12-08
Abstract: 1383758 Transparent polyamides HOECHST AG 8 Dec 1971 [10 Dec 1970] 57067/71 Heading C3R Transparent copolyamides are derived from a C 7-20  aromatic dicarboxylic acid and a C 5-20  saturated aliphatic dicarboxylic acid which provides 15 to 85 mol. per cent of the total diacid and 1,3- or a mixture of at least 50 mol. per cent 1,3- together with 1,4-bis-(aminomethyl) cyclohexane. Specified aromatic acids are iso- and tere-phthalic; and 2,5-pyridine; 4,41-diphenyl-, and 1,4-, 1,5- and 2,6-naphthalene dicarboxylic acids. Specified aliphatic acids are adipic, 2-methyl-glutaric, pimelic, suberic, azelaic, sebacic and 1,10-decane dicarboxylic acids. The diamines are preferably trans. The polymer may be injection moulded. Reference has been directed by the Comptroller to Specification 922,677.
Patent GB-1203278-A (GB)
Title: 3-ENOL-ETHERS OF delta<1>-3-KETO-5alpha-STEROIDS AND PROCESS
Inventor: GARDI RINALDO
IPC: C07J75/00
Filed: 1967-12-15
Abstract: 1,203,278. 3-Enol ethers of #<SP>1</SP>-3-keto-5α- steroids. WARNER-LAMBERT PHARMACEUTICAL CO. 15 Dec., 1967, No. 57074/67. Heading C2U. Novel steroids of the formula (wherein R is a C 1-9  hydrocarbon radical; W is α-R<SP>2</SP>(#-OZ), α-OH(#-COCH 2 OZ) or α-OZ<SP>1</SP>(#- COCH 3 ) in which R<SP>2</SP> is H or C 1-3  alkyl, Z is H or C 1-9  acyl and Z<SP>1</SP> is C 1-9  acyl; T is H, α- or #- CH 3  or α-OH or -Oacyl; X is H or halogen; and Y is hydrogen, Cl, ketonic oxygen or #-OH; and X is F only when Y is #-OH and X is Cl or Br only when Y is Cl) are prepared by heating the corresponding ring-A saturated 1α,3,3-tri-OR<SP>1</SP>-steroids in which R<SP>1</SP> is a C 1-6  hydrocarbon radical in an anhydrous hydrocarbon solvent containing an acid catalyst, and in the absence or presence of an alcohol ROH. The use of benzyl alcohol with 1α,3,3-trimethoxy - 17# - acetoxy - 5α - androstane gives a product with different physical constants from that named as #<SP>1'3</SP>-androstadiene-3,17#-diol 3-benzyl ether 17-acetate in Specification 993,301; and the product of its reaction with LiAlH 4  viz. the free 17#-ol, also has different physical constants from the product named as the 17#-ol in said Specification. Hydrolysis of the novel steroids gives the #<SP>1</SP>-3-keto-5α- steroids from which the present steroids are derived. The 1α,3,3-triether starting materials are prepared from corresponding #<SP>1</SP>-3-keto-5α-steroids by treatment with a lower alkyl or cycloalkyl orthoformate and a corresponding alcohol.
Patent GB-572213-A (GB)
Abstract: 572,213. Gyroscopic apparatus. BENDIX AVIATION CORPORATION. Dec. 15, 1943, No. 21042. Convention date, April 17, 1942. Addition to 562,886. [Class 97 (iii)] In the rate-of-turn gyroscope claimed in the parent Specification, wherein the precession of the gyroscope is opposed by a force which is a function of the tangent of the angle through which the gyroscope precesses, the opposing means now comprises a cantilever or leaf spring. As shown, the rotor 4, Fig. 3, is in the form of a two-phase induction motor and is energized by means of leads 12, 13, 14 which enter the rotor through one of its bearings 15 provided in the gimbal 5. The leads pass through the hollow trunnion 17 of the gimbal and are connected to insulated hair springs 18, 19, 20 connected to the secondary of a miniature transformer 32, Fig. 2, supplied with alternating current. Precession of the gimbal in one direction or the other is resisted by leaf springs 63, 70, Fig. 2, which bear against pins 59, 60 carried by a toothed sector 56 driven by a pinion 55 attached to the trunnion 17. As the springs flex they bear successively upon adjustable stops 77, 78, 79 or 81, 82, 83. The precessional movement actuates a pointer 45 by means of gearing 39, 40.
Patent GB-1409749-A (GB)
Title: Waveguide antenna
IPC: H01Q21/00
Filed: 1972-12-14
Abstract: 1409749 Filters STANDARD TELEPHONES & CABLES Ltd 6 Dec 1973 [14 Dec 1972] 57690/72 Heading H1W [Also in Division H4] A frequency scan aerial comprises a multisection evanescent mode waveguide bandpass filter with radiating slots along its length. As described, the filter is basically to Specification 1,129,185 and comprises a rectangular crosssection waveguide 1 containing spaced-apart adjustable capacitive elements, such as tuning screws 2, by means of which the necessary conjugate match condition may be obtained to achieve evanescent mode resonance for energy transfer along the waveguide over a required pass band of frequencies below the dominant mode cut-off frequency. Radiating longitudinal slots 3 are provided on alternate sides of the centre line of the broad wall of the waveguide, the transverse centre line of each slot being midway between adjacent screws 2. The filter acts as a slow wave structure, and a comparatively small change of frequency results in a comparatively large change of phase between adjacent slots, with a correspondingly large beam deflection. The radiating slots may alternatively be provided all on the same side of the broad wall centre line, or they may be provided in the narrow wall of the waveguide. As shown in Fig. 7, the far end of the waveguide 1 may be terminated in a reflecting wall 4. In this case, the last three or five of the capacitive elements are made lossy, and no radiating slots are associated with them. A matched termination is thereby obtained.