baber/WOPTO huggingface dataset:
Patent GB-1244343-A (GB)
Title: Pressure structure for tubes under formation in machines for the manufacture of tubes of fibrous substances such as asbestos cement
IPC: B28B21/50
Filed: 1968-11-01
Abstract: 1,244,343. Tube-forming machinery. RIVA CALZONI S.p.A. 1 Nov., 1968 [2 Nov., 1967], No. 51996/68. Heading F2P. In machinery for making tubes, particularly of asbestos cement, which includes a pressurizing structure for exerting a high pressure over a substantial length of the tube during formation, the pressurizing structure consists of a rigid beam 1 which can be raised and lowered by the operation of two reversible fluid pressure cylinders 2 whose piston-rods 2a are connected to opposite ends of the beam, and a joist 3 which is guided for limited vertical movement by pins 5 on the beam and carries rollers bearing on the tube, the downwards force exerted by the cylinders 2 when the beam is lowered being uniformly distributed over the length of the joist 3 by means of a plurality of relatively small fluid pressure cylinders 6, 7 mounted on the beam such that their pistonrods 6a, 7a act downwardly on the joist at intervals along its length, the pressure chambers of the cylinders 6 being connected to a common conduit 8 which is normally isolated from a fluid supply 17 so that pressure can build up in these cylinders to a limit determined by a relief valve 10. When the relative movement between the joist 3 and the beam 1 exceeds the amount 21, a valve 9 controlled by a depending stem 12 engaging a block 13 on the joist is operated to admit fluid from the supply 17 to make up any loss from the cylinders 6 or valve 10. The cylinders 7 are optionally brought into use by valves 19 when required during the formation of very long tubes, the apparatus being normally used to form tubes shorter than the length of the joist 3.
Patent GB-1319289-A (GB)
Title: Saw apparatus
IPC: B27B5/34
Filed: 1970-11-03
Abstract: 1319289 Circular saw machines INDUSTRIAL WOODWORKING MACHINE CO Inc 3 Nov 1970 [27 March 1970] 52301/70 Heading B5L In a saw apparatus, circular saws 12-14, Fig. 3A, are each mounted at one end of a respective tubular shaft 22-24, the shafts being telescopically slidable on an axle 15 and the shafts decreasing in length outwardly of the axle. Means are provided for rotatably supporting the axle, for rotating the axle and shafts, and for moving the shafts axially relative to each other and the axle to vary the distances between the saws. In the machine described, the axle 15 is mounted at one end in a bearing 16 and the axle and shafts together with a sleeve 29, Fig. 3B, are rotatably supported in bearings 18. A drive sheave 30 is provided with keys 31 which pass through slots in the sleeve 29 and engage in keyways in the outer shaft 24 to impart rotational motion thereto. Each shaft carries keys, e.g. 79 which engage in longitudinal keyways, e.g. 32 in the adjacent radially inward shaft or the axle so that rotary motion is transmitted whilst relative axial movement of the shafts and axle is permitted. The keyways of adjacent members are offset longitudinally and circumferentially. At its end opposite to the saw, each shaft is rotatably mounted in a slidable thrust plate 62, 63, or 64, the thrust plate being connected to a piston rod; e.g. 54, which is associated with a corresponding cylinder, e.g. 44, fixed to the adjacent thrust plate, or, in the case of the innermost shaft, to a thrust plate fixed to the frame of the apparatus. Variation of the amount of pressure fluid in a cylinder thus varies the distance between two adjacent thrust plates and hence adjusts the spacing of the corresponding saws.
Patent GB-1535768-A (GB)
Title: Extraction of metals from their sulphides
IPC: C22B3/04
Filed: 1975-12-23
Abstract: 1535768 Smelting sulphidic ores R SWANSON 23 Dec 1975 52606/75 Heading C1A [Also in Division C7] A metal selected from Cu, Ag, Mo, Bi, As and Sb is recovered in metallic or oxide form from a sulphide ore by fusing the ore under vacuum with a non-saturated sulphide of Na or K at 210-360‹ C. forming a flux containing the metal as powder, and a more saturated sulphide of Na or K the metal being recovered from the flux. The non-saturated sulphide is preferably K 2 S 4  which reacts with ore to form Cu and K 2 S 5 . The flux may be leached with water to remove sulphides, the residue being separated by gravity and the leach solution containing K 2 S 5  being evaporated to dryness, followed by heating the K 2 S 5  to decompose to lower sulphides for recycling. Numerous ores are specified.
Patent GB-1089129-A (GB)
Title: Work spindle drive for multi-spindle automatic lathes
IPC: B23Q5/14
Filed: 1965-12-13
Abstract: 1,089,129. Multi-spindle automatic lathe- WERKZEUGMASCHINENFABRIK GILDEMEISTER & COMP. A.G. Dec. 13, 1965 [Dec. 14, 1964], No. 52845/65. Addition to 1,025,506. Heading B3T. [Also in Division F2] The hollow work spindle 7 of a multi-spindle automatic lathe are indexable around a central drive-shaft 3 from which they may be driven at a common basic speed but from which they may be uncoupled in one or more spindle positions to be driven at different speeds by independent drive and gear units which lie outside the indexing circle of the spindles 7 and which are thus clear of the workpieces 45. Normal drive at basic speed is from a central gear 4 mounted on the shaft 3, through a spindle gear 5 and a plate clutch 37 to the spindle 7 when the spindle 7 is indexed to the selected position for independent drive, clutch 37 is disengaged and a shaft 54 carrying two shift gears 52, 53 is displaced under the action of an hydraulic or pneumatic cylinder 44a initially to engage shift gear 53 with spindle gear 5 to transmit synchronizing rotation through clutch 48 and gear 47 to the shift gear 52. Clutch 46 is disengaged at this juncture. Continued displacement of shaft 54 brings shift gear 52 into synchronized engagement with gear 16a fixedly mounted on the spindle 7, this movement being followed by disengagement of clutch 48 and engagement of clutch 46. Driving connection is thus completed from independent motor 8 through change gears 9, 10, shaft 11a, and gears 47, 52, 16a to the spindle 7. To facilitate insertion of shift gear 53 into mesh with spindle gear 5 it is resiliently mounted by means of a spring 57 and is provided, as is also shift gear 52, with teeth having pointed end faces. Cylinder 44a may be replaced by a resiliently mounted cam.
Patent GB-1336035-A (GB)
Title: Device for use in transporting rectangular articles
IPC: B61D3/08
Filed: 1971-11-16
Abstract: 1336035 Latches F PLASSER 16 Nov 1971 [17 Dec 1970] 53113/71 Heading E2B [Also in Division B8] A device for use in transporting railway sleepers 1 comprises a base frame 2 having four upwardly extending side plates 5b on each of which a stanchion 3 is mounted for pivotal movement about a pivot 6, each stanchion 3 being lockable in its upright operative position, Fig. 1, by means of a locking mechanism comprising a locking hook 12 rotatably mounted on a pivot 14 on the associated stanchion which drops under gravity onto a locking bolt 15 projecting from the associated side plate 5b. The locking mechanism is released. by means of a handle 17 projecting from the hook 12.
Patent GB-1416640-A (GB)
Title: Moisture tester
IPC: G01N27/22
Filed: 1973-11-16
Abstract: 1416640 Moisture measurement DICKEYJOHN CORP 16 Nov 1973 53190/73 Heading G1N The invention relates to measuring moisture as a percentage by weight (e.g. in grain). A capacitor measuring cell is mounted on a spring- loaded weighing frame which operates a switch to initiate a rapid moisture measurement when the predetermined weight is poured into the cell. The measurement is in the form of a frequency count taking less than 1 millisecond. A temperature compensation signal may be added DETECTOR-CELL CONSTRUCTION FIG 3 and Figs 1, 2, 4, 5 (not shown) The weighing platform, capacitor cell, circuit boards, and batteries are mounted in a sheet metal housing 4 with a handle (9) Fig. 5 at one end and a top member 6. The capacitor cell 52 has a control cylindrical electrode with a conical dielectric cap, mounted in a cylindrical container forming the other electrode. A thermister (120) is mounted in the cell on the container wall. The weighing platform comprises upper and lower angle bars 72, 74, hinged by blade-springs (76) to the wing-members 46 of a chassis formed by a channel (36) depending from the top plate. When the capacitor is full the platform moves down against the bias of coil springs 112 to close switch 94. CIRCUIT FIG. 6. Moisture measurement. The outputs of variable oscillator 130 tuned by the capacitor cell and reference oscillator 132 are fed to mixer 144 and the difference frequency abstracted through lowpass filter 146. A counting time base is provided by a 12-stage frequency divider fed from the reference oscillator. The output of the 11th stage opens AND gate 156 passing the differency frequency through OR-gate 160 to a 3-decade counter and L.E.D. readout. The 12th-stage output inhibits the input OR-gate 152 thus stopping the count. (With a frequency of about 2 MHZ this takes less than one millisecond.) Power supply. The measuring circuit is only energized for a short while after the weight-switch 94 is closed. Power is supplied by a multivibrator 180 which is kicked into oscillation by a pulse from transistor 176 when the switch closes. R-C circuit 170, 172 provide a small time delay before transistor 176 fires.  Œ Temperature correction relative to 25‹C is then initiated by button 34 which resets flip-flop 168 to close gate 148 in the moisture measuring circuit and trigger "one-shot" 214 and enable AND-gates 216 and 217 so that pulses from stage 1 of the divider 154 are fed to the counter until the "one-shot" reset. This resetting time is determined by thermister 120 and is arranged so that at 25‹C, 1000 pulses are added to the three-decade counter, rolling it through zero to its initial setting. In an alternative circuit arrangement Fig 9, (not shown) the moisture-variable frequency is applied to the divider as a variable time-base during which reference frequency pulses are  counted. CALIBRATION. A capacitor (302) in series with the measuring capacitor may be used to vary the slope of the response curve for different grains.
Patent GB-1165029-A (GB)
Title: Semiconductor Monolithic Microcircuits.
IPC: H01L29/06
Filed: 1966-11-29
Abstract: 1,165,029. Semi-conductor devices; resistors. RADIO CORPORATION OF AMERICA. 29 Nov., 1966 [2 Dec., 1965], No. 53493/66. Headings H1K and H1S; In a monolithic semi-conductor microcircuit a P(N) type region 8, e.g. comprising a resistor, is surrounded by a portion of an N(P) type region 6 isolated laterally from the remainder of the crystal by a P(N) type zone 10. An N+(P+) zone 12 is provided between the isolated portion of the region 6 and the zone 10, at least partially separating the two, and thereby minimizing the detrimental effect of the parasitic PNP(NPN) transistor formed by the regions 8, 6 and the zone 10. In the form shown, the region 6 is epitaxially deposited on a highly antimony- or arsenic-doped N + epitaxial layer 4 on a boron-doped P-type silicon substrate 2. Using an oxide masking and photoresist technique a rectangular annular layer of BBr 3  is vapour deposited on the surface in preparation for formation of the isolation zone 10, and a similar layer of, e.g. POCl 3  is vapour deposited prior to formation of the zone 12. Subsequent heating at 1165‹ C. causes the impurities to diffuse in, partly forming the zones 10, 12. Boron nitride is deposited on the surface, through a suitable oxide mask, and boron is diffused in at 1100‹ C. to form the region 8, this heating stage causing the further diffusion required to complete the zones 10, 12. Metal contacts 28 are then applied through an insulated oxide coating 26. In an alternative embodiment, the substrate 2 is also of N-type conductivity, and in this case the isolation zones 10, 12 extend throughout the wafer thickness. The highly doped N + type region 4 need not extend throughout the crystal, and may instead comprise a pocket diffused into the substrate 2. If the N-type layer 6 is sufficiently thick the N+ type layer 4 may be dispensed with entirely. The resistor described may be included in a monolithic circuit comprising diodes, transistors, capacitors &c.
Patent GB-1522129-A (GB)
Title: Process for producing oligomers
IPC: C08F8/04
Filed: 1975-07-17
Abstract: 1522129 Oligomerization of olefines ANIC SpA 17 July 1975 [2 Aug 1974] 53864/77 Divided out of 1520748 Heading C3P One or more linear C3-C12 alpha olefines are oligomerized in the presence of a catalyst comprising (a) an organo aluminium compound and (b) a compound of the formula MeXnYm, where Me is Sn, Si, Pb, Ge, B, Sb, As, Bi or Mg; X is halide, ClO-4, HSO-4, NO-2, NO-3 or ClO3 anion and Y is O or Sand m is 0 or an integer, a mixture of the alpha olefine(s) and (a) at a temperature of 14 to 25‹ C. being mixed with (b) dissolved in a cooled solvent and the temperature during the oligomerization not exceeding 35‹ C. The product oligomer may be hydrogenated. In examples butene-1 is oligomerized in pentane using AlEtCl2 and SbCl5, SnCl4 or Mg(ClO4)2 as catalyst.
Patent GB-1303196-A (GB)
IPC: G01P3/66
Filed: 1970-11-12
Abstract: 1303196 Speed detection device SOC NATIONALE INDUSTRIELLE AEROSPATIALE 12 Nov 1970 [15 Nov 1969] 53969/70 Heading B7N [Also in Divisions G1 and G4] A speed detecting device comprises first and second detectors D1, D2 spaced along the path of a moving body to detect its passage and produce impulses to, to<SP>1</SP> to control respectively two bi-stable switches RB1, RB2, each in turn controlling simultaneously a pair of circuits (via RB1a, RB1b; RB2a, RB2b) so that production of the first impulse "to" causes:- (a) one circuit (via RB1a, RB2a) of each pair to operate one or mote time-delay relays Rt, Rt1, Rt2, ... controlling circuits (rt, rtl, rt2, ...) and  (b) the other circuits (via RB1b, RB2b) in each pair to be connected in series so that they constitute with the time controlled circuits a utilization circuit C, whose closed or open condition, at the instant the second impulse "to<SP>1</SP>" is produced, will depend on the states of the timecontrolled circuits. The direction of movement and consequent order of actuation of detectors D1, D2 is immaterial. The first impulse produced operates the time-delay relays and, if the second impulse is produced before the end of any of the time-delay periods, S1 receives a signal. As each delay period ends the circuit c is shunted for application of the second impulse to the next receiver S2, S3, .... If the second impulse arrives after the end of the last period it is diverted to supply the second coils of the bistable switches to return them to initial condition for a new cycle. The time-delay periods are chosen according to speed ranges to be detected and may progress in equal or unequal intervals. More than three are envisaged in Fig. 3 (not shown) Two tubular pneumatic detectors, Fig. 4 (not shown) spaced along a runway, may be used to detect the speed of an aircraft prior to take-off for the purpose of (a) indicating running speeds to the pilot, (b) statistical control of running speeds, (c) regulating braking. This arrangement may also be used to monitor the speed of road traffic in conjunction with photographic recording of speed indications and identity and with counting of passing vehicles. The speed of a vehicle on a cushion of air guided by a track may be detected by providing a boss on the vehicle to coact with detectors on the track, Fig. 5 (not shown).
Patent GB-1128978-A (GB)
Title: A polysiloxane stabilizer for vinyl chloride resins
IPC: C08L27/06
Filed: 1965-12-20
Abstract: 1,128,978. Organopolysiloxanes; stabilized P.V.C. KURASHIKI RAYON K.K. 20 Dec., 1965 [26 Dec., 1964], No. 53982/65. Headings C3P and C3T. A liquid organopolysiloxane having more than 10 mol per cent units of the formula wherein R is an alkyl radical of 1 to 12 C atoms, in the main siloxane chain, and no Si-bonded H in the molecule, can be made by contacting the corresponding methyl-hydrogen siloxane with a bis-trialkyltin oxide, (R 3 Sn) 2 O, the molar ratio of (CH 3 .H.SiO)/(R 3 Sn) 2 O being less than 2. In the example equimolar quantities of the 2 reactants were mixed together with cooling, and the product was then distilled in a N 2  atmosphere under reduced pressure to yield the desired polymer in liquid form. Uses: for stabilizing P.V.C. to improve its weather resistance and lower its hydroscopicity. In making comparative tests, specimens were made by blending 100 parts (by weight) of P.V.C. with 10 parts of dioctylphthalate and 0À3 or 1 part of the siloxane or conventional stabilizer.
Patent GB-1403704-A (GB)
Title: Calculators
IPC: G06F15/02
Filed: 1972-06-15
Abstract: 1403704 Calculators HEWETT-PACKARD CO 15 June 1972 [15 June 1971] 54010/74 Divided out of 1403710 Heading G4A The description is part of that of Parent Specification 1,403,710 but the claims are directed to a calculator having a keyboard, a first read/write memory, a second memory for storing routines and subroutines, a processor, magnetic recording and reading means and control means for enabling the latter to record programme and data information stored in the first memory on one or more magnetic records and to subsequently load the recorded information into the first memory. As described these operations are under the control of "load" and "record" keys on the keyboard.
Patent GB-1149989-A (GB)
Title: Molded capacitor having integral standoffs
IPC: H01G2/04
Filed: 1967-11-28
Abstract: 1,149,989. Capacitors. P. R. MALLORY & CO. Inc. 28 Nov., 1967 [28 Nov., 1966], No. 54153/67. Heading H1M. The terminal end 13 of moulded capacitor housing 11 has tit formations 19, 20, 21 surrounding terminal wires 16, 17, 18 where they emerge from the housing, and integral moulded feet 14, 15 for mounting the capacitor on a panel and spacing the tits from the panel, the tits further being provided with means 23, 24 for indicating the polarity of the capacitor.
Patent GB-1277018-A (GB)
Title: Improvements in or relating to machine-tools
Inventor: RILEY RAYMOND ALEC
IPC: B23B29/20
Filed: 1968-05-17
Abstract: 1277018 Mounting preset tools DUNLOP HOLDINGS Ltd 11 Aug 1969 [17 May 1968 15 Nov 1968] 29003/69 and 54263/68 Heading B3T In a machine tool of the kind having a cutting tool and a rotatable work-holding spindle, which is specifically for use with preset tools, there is provided a changer plate 1 which is secured to a tool holding structure of the machine and is provided with two angularly inclined locating surfaces 5 which extend parallel to the axis of the machine spindle. A cutting tool which is pre-set with respect to its holder is provided with surfaces corresponding to those on the changer plate 1 and is secured thereon by clamping means. The tool holder is provided with an abutment surface which engages a corresponding abutment surface on the changer plate whereby a preset tool is located in its precise position on the machine tool and ready for use without further adjustment. In the embodiments described, the preset tool 19 is attached to the changer plate by way of an adapter plate 20 which permits locating of the cutting tool in alternative orientations with respect to the changer plate. The adapter plate 20 is for use with an alternative form of changer plate which has a projection 12 providing angularly inclined locating surfaces 25. The plate 20 has two rectangular holes 21, 22 one of which carries a tool holder and the other is locatable on the projection 12. In an alternative embodiment the adapter plate 29 has substantially circular holes 31 and which are provided with inserts 32 with flats 33 which co-operate with the corresponding surfaces on a tool holder and projection 12 respectively, a further recess 30a being provided in each respective hole 31 for the reception of a wedge clamping bolt assembly, Fig 11 (not shown).
Patent GB-1114115-A (GB)
Title: Improvements in or relating to antibiotics and the manufacture thereof
IPC: C07D207/22
Filed: 1965-05-25
Abstract: The novel allolincomycin is prepared by reacting cis-4-propyl-L-hygric acid with methyl thiolincosaminide. Acid-addition salts of the product may be prepared.
Patent GB-1446785-A (GB)
Title: Rotating evaporator heat exchanger
IPC: F22B27/12
Filed: 1973-11-23
Abstract: 1446785 Rotary boilers FINVENTA-HOLDING AG 23 Nov 1973 [23 Nov 1972] 54433/73 Heading F4A [Also in Division F1] In a rotary boiler for a thermodynamic machine such as a heat pump or an expansion motor a rotatable assembly of tubes 2 is arranged in a generally axial direction with respect to the axis of the boiler, each tube 2 having a series of annular externally conductive spaced fins 21 and the tubes 2 being collectively connected by a rotatable header drum 3 to receive liquid therefrom, a connection 52 being provided to a receiver drum 5. Each tube 2 is provided with a weir or barrier 50 to retain, in operation, liquid 49 in each tube and the rate of liquid supply in relation to the rate of evaporation in the tubes is controlled to ensure that the amount of liquid in the tubes is always sufficient to result in a flow over the weir or barrier. A burner 36 is arranged within the ring of tubes 2 and cooling fins 26 are provided on tubes 34 leading from the receiver drum 5 in the condenser portion 6. Circulation pumps 41 and 54 are operated from an eccentric (not shown) to cause radially reciprocating motion in the direction of the arrows 43 and urge flow of liquid through pipe 44 through apertures 36<SP>1</SP> in a plurality of evaporation tubes 47 and return flow via pipe 52 to the peripheral region 39 of the receiver drum 5. The inside of each tube 2 is provided with a system of grooves 56 to provide a high capillary effect with respect to the liquid. Joining the header drum 3 and the receiver drum 5 is a portion 4 which acts as an expansion engine of a vapour prime mover.
Patent GB-1221006-A (GB)
Title: Salicylanilides
Inventor: GRENDA VICTOR JOSEPH
IPC: B65G53/22
Filed: 1968-11-18
Abstract: 1,221,006. Salicylanilides.. MERCK & CO Inc. 18 Nov., 1968 [22 Nov., 1967], No. 54658/68. Heading C2C. Therapeutically active compounds I wherein n is 0, 1, 2 or 3, Y is halogen, hydroxy alkyl, haloalkyl, alkoxy or nitro, X and X<SP>1</SP> signify halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, haloalkylthio, hydroxy, cyano or nitro, Q is O or S, are obtained by reacting a nitrile II with a diazonium compound III (Z is Cl-, Br-, HSO 4 - or BF 4 -) and hydrolysing the intermediate nitrilium salt. 3 - Chloro - 4 - (p - chlorophenoxy) - benzenediazonium fluoborate and bisulphate are prepared from 3 - chloro - 4 - (p - chlorophenoxy)- aniline. Pharmaceutical preparations effective against liver fluke contain as active ingredient compounds I; administration may be orally or by injection.
Patent GB-1348180-A (GB)
Title: Cold-light mirrors
IPC: C03C17/34
Filed: 1972-12-04
Abstract: 1348180 Making mirrors by vapour deposition PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 4 Dec 1972 [7 Dec 1971] 55881/72 Heading C7F [Also in Division G2] A concave cold-light mirror is formed by vapour depositing on a substrate of e.g. glass, quartz glass or plastics alternate quarter-wavelength ZrS and SiO layers in an oxygen atmosphere having a pressure such that the vapour is dispersed in the space between the source and the substrate. The substrates 1 are mounted in a rotatable holder 9, and are first cleaned in an oxygen or argon atmosphere by a glow discharge filament 8. The thickness of the coating is controlled by a light source 6, glass plate 7, and photo-electric cell 17.