baber/WOPTO huggingface dataset:
Patent GB-1360441-A (GB)
Title: Automatic tool changing device
IPC: G05B19/18
Filed: 1971-06-17
Abstract: 1360441 Automatic electric control IKEGAI TEKKO K K 17 June 1971 [17 June 1970; 11 Aug 1970] 19760/71 Heading G3N An automatic tool-changing arrangement for machine tools incorporates a tool identifying number memory, synchronized with a toolindexing head and into which a transferred tool number is read, the memory comprising reed switches or a magnetic recording medium. As shown, a numerically controlled boring machine has a head 11 with a spindle 12 and a tool magazine 21 which is rotatable in steps to present in sequence tools 1a - 12a for inter-change with a tool in the spindle by an arm 13. A workpiece is mounted on a table 16 and the head 11 with the magazine 21 is moved vertically by a screw 14. The magazine 21 carries index pins 1b - 12b which actuate a limit switch 23 synchronizing the rotation of a memory drum 41. The drum has arcuate magnetizable sections 1c - 12c corresponding the tools in the magazine. Each section is 8 bits long and when data is magnetized in binary code, corresponding to a tool number, by write heads 45 and read by flux-modifying heads 42. A numerical control device 3, responsive to a positioning and operations programme on a paper tape emits a tool command S2 to an A - register 32. A B - register 33 temporarily hold the number of the tool being read by the heads 42 as the magazine is indexed by control 31 in response to a command S1 from the device 3. A C - register holds the number of the tool actually in the spindle 12. The magazine indexing continues until the contents of registers 32, 33 coincide, upon which a coincidence signal S4 is generated inhibiting device 31 and causing the numerical control device 3 to generate a command signal S3. A tool change control 35 issues, in response to the signal S3, a read and write change-over command S32 which initiates a tool-change operation, opens a gate 36 whereby information relating to an exchanged tool is entered on the magnetic memory and the C - register filled with the number of the tool transferred to the spindle. In an alternative embodiment the memory comprises reed-switches, having a hold-on facility, through which lights are energized and read by photo-cells. The tool-changer incorporates a rotary arm which slides along a shaft to remove the tool from the magazine and spindle and rotates through 180 degrees to effect a transfer.
Patent GB-1490087-A (GB)
Title: Work implement couplings
IPC: B60D1/00
Filed: 1974-11-06
Abstract: 1490087 Releasable pipe couplings W E MARTIN 6 Nov 1974 19875/74 Heading F2G [Also in Divisions B7 and E1] A fluids service line connection between two vehicles (see Division B7) comprises a male connector 122 provided with a plurality of female fluids-pipe connectors 124. The male connector 122 may be moved into and out of engagement with a female connector 128 by movement of a handle 142. Each of the plurality of female connectors 124 comprises a valve head 166 which is moved to its open position by engagement with a valve head 164 of the corresponding male connector 130.
Patent GB-1383985-A (GB)
Title: Film posessing an adhesive coating
IPC: C09J7/35
Filed: 1972-04-28
Abstract: 1383985 Polyimide coated films RHONEPOULENC SA 28 April 1972 [30 April 1971] 19903/72 Heading B2E A polyimide or polyamide-imide film has an adhesive coating on at least one side thereof of a polyimide consisting essentially of recurring units of the formula: in which "M" represents an aliphatic, cycloaliphatic aromatic or heterocyclic divalent radical. The coating optionally contains a polar solvent. A list of suitable radicals "M" is given, examples being in example 1 and in examples 2 to 6. The sheet is made of a polymer having the recurring unit:  where M is as before, R represents aliphatic, cycloaliphatic, aromatic, or heterocyclic tetravalent organic radical containing at least two carbon atoms, and R' is as R but trivalent. Many precursor anhydrides containing examples of R, R' are listed. Preferred polyamide-imides are the reaction products of trimellitic anhydride with 4, 4'-diisocyanato-diphenyl ether (Examples 1, to 4 and 6) and of pyromellitic acid with 4, 4'-diaminophenyl ether (Example 5). The film is preferably stretched and treated, for example by electrical discharge and/or cleaning, before being coated by soaking, spreading, or spraying, solvent being removed by heating optionally under reduced pressure. Films are useful for bonding printed circuit boards and for wrapping electrical conductors.
Patent GB-907973-A (GB)
Title: Polymerisation process
Inventor: LOVELOCK VICTOR GORDON
IPC: C08F14/06
Filed: 1960-06-07
Abstract: Vinyl chloride is polymerized, either alone or with other copolymerizable monomers which do not contain a basic nitrogen atom, in an aqueous medium in which at least part of the polymerization takes place in the presence of at least 0,05 wt. per cent based on the monomer(s) of a quaternary ammonium compound of the general formula <FORM:0907973/IV(a)/1> wherein R is a C5 or higher aliphatic hydrocarbon radical; R1 is -(CnH2nO)mH where n is 2, 3 or 4 and m is a positive integer; R11 is a C1-5 alkyl or hydroxyalkyl radical or R1; R111 is H or R11; X is an anion; and q is the valency of X. Several examples of radicals R, R1, R11 and R111 are given and examples of X are halide, sulphate, phosphate, borate, carbonate, nitrate, nitrite, cyanate, and acetate.  Compounds mentioned are caprylylamidopropyl dimethyl b -hydroxyethyl ammonium bromide; lauramidopropyl methyl bis(b -hydroxyethyl) ammonium chloride; and stearamidopropyl dimethyl b -hydroxyethyl ammonium nitrate and phosphate.  Comonomers specified are:- vinyl acetate; methyl methacrylate; methyl, ethyl and 2-ethyl-hexyl acrylates; methyl a -chloroacrylate; maleic and fumaric acids; diethyl maleate; diethyl and di-n-propyl fumarates; vinylidene chloride and acrylic acid. Catalysts mentioned for emulsion processes are peroxy compounds, e.g. hydrogen peroxide, which may be activated with a water-soluble Cu or Fe salt; per-esters, e.g. sodium peracetate; and alkali metal or ammonium persulphates which may be activated with a copper salt and a small partial pressure of oxygen as described in Specifications 589,264 and 598,777.  The quaternary compound is preferably added stepwise or continuously both in emulsion and in dispersion processes.  Catalysts specified for the latter are monomer soluble peroxides and hydroperoxides, e.g. benzoyl or lauroyl peroxide; t-butyl peroxy-benzoate; and azo compounds, e.g. a ,a 1 azo-bis-isobutyronitrile, diisopropyl 2,21-azo-bis-isobutyrate, and phenyl-azo-triphenylmethane. Anti-foam agents, e.g. silicones may be present.  In Example 4 sodium formaldehyde sulphoxylate was mixed with that portion of the quaternary compound introduced during polymerization.  The polymer may be spray- or tray-dried.  The quaternary compound functions as emulsifying or dispersing agent during polymerization and gives antistatic properties to the product which may be used for moulding gramophone records.  According to the Provisional Specification the vinyl chloride may be polymerized with any copolymerizable monomer, examples of such monomers including acrylonitrile.
Patent GB-919603-A (GB)
Title: Manufacture of shoe lasts
IPC: B27M3/20
Filed: 1960-06-07
Abstract: 919,603. Making lasts. INCOMA S.p.A. June 7, 1960 [June 13, 1959], No. 19945/60. Class 17 (1). [Also in Group XXII] A method of making a shoe last 19 comprises turning a blank held by an ankle extension 20 in an overhanging position on a spindle 1 and then machining off the extension. The lathe spindle 1 carries a split collar 2 having a slideway to receive a holder 4 adjusted by a screw 5. A bolt 10 on the body enters a recess in the extension 20. The blank is clamped by a member 17 pivoted to a lever 12 actuated by a cam 14 on a manually rotatable shaft 15. When the blank has been turned, it is removed and the extension 20 is milled away.
Patent GB-1510972-A (GB)
Title: Nuclear reactors
IPC: G21C1/20
Filed: 1976-04-23
Abstract: 1510972 Reactor cooling arrangement ENGLISH ELECTRIC CO Ltd 23 April 1976 [13 May 1975] 20111/75 Heading G6C  Cooling water inlet pipes 12 secured to the lower ends of fuel containing tubes 8 increase in length in accordance with their distance from the vertical axis of calandria 3 so as to provide a space 18 facilitating access to the pipes. Pipes 12 are each surrounded by a sleeve (11) (Fig. 2, not shown) secured to lower neutron shield tank 6, there being a bellows seal 14 between the pipe and sleeve. Outlet pipes 22 for coolant water are connected to stand pipes 9 secured to the upper ends of fuel-containing tubes 8 and having flanges 10 bolted to upper neutron shield tank 5. The staggered detachable connections 23 between stand-pipes 9 and outlet pipes 22 each comprise a split clamp which draws a pair of flanges into abutment. Emergency cooling water is provided by manifolds 34 connected to the upper ends of stand-pipes 9 by individual inlet pipes 35 each having a detachable connection (36) (Figs. 3, 5, not shown). The arrangement is such that fuel channel assemblies 13 are readily removed and replaced individually.
Patent GB-1340143-A (GB)
Title: Headlamp and windscreen wiper and washer installation for vehicles
IPC: B60S1/48
Filed: 1971-04-19
Abstract: 1340143 Headlamp and windscreen wiping and washing SWF-SPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 19 April 1971 | 23 Jan 1970]20298/71 Heading A4F  A headlamp and windscreen wiper and washer installation including separate wiper motors M 1 , M 0 , wiper switches WiS 1 , WiS 0 , washer switches WaS 1 , WaS 0  and washing fluid supply means P 1 , P 0  for the headlamps and windscreen respectively comprises the headlamp washer and wiper switches connected in such a way that power is only supplied to the headlamp wiper switch when the windscreen wiper is on and to the headlamp washer switch when the windscreen washer is on. Fig. 1, (not shown) shows a system in which the headlamp wiping and washing switches are so connected that current flows to them through the corresponding windscreen switches. Fig. 2 shows the headlamp wiper switch receiving its current through contacts c of a relay R which are connected only when the windscreen wiper is working. In this second case the current to operate the headlamp wiper is supplied to a contact of the relay R only, when the headlamps are switched on.
Patent GB-1360289-A (GB)
Title: Device for scanning and decoding a multiple bar coded representation
IPC: G06K19/06
Filed: 1972-05-02
Abstract: 1360289 Bar code reader INTERNATIONAL BUSINESS MACHINES CORP 2 May 1972 [28 June 1971] 20306/72 Heading G4H A reader for bar code markings of the kind shown in Fig. 1 having two widths of black marks and two widths of spaces is arranged to produce an indication of the distance between leading edges T 1 , T 3  and trailing edges T 2 , T 4  of adjacent marks to reduce discrepancies due to spread of the marks during production, i.e. during typing. The marks, e.g. on a label are optically read by a hand held reader, and a counter 17 counts the number of transitions in the signal 12. Logic circuit produces signals T 1  to T 4  corresponding to references T 1  to T 4  in Fig. 1, i.e. T 1  corresponds to C 1 , C 2  in signal 12. The signals are fed to respective AND gates to pass signals from a clock 28 to respective counters so that each counter contains a value representing the length of the signals T 1 -T 4 . The values in the counters are shifted and compared with a reference in store 35 (initially all ones) and the lowest value is stored in 35. The values are returned to the respective counters. TS now represents the spacing of a narrow bar and a narrow space and values 3TS/2 and 5TS/2 are calculated and stored in 40, 44 respectively. The contents of stores 31-34 are sequentially compared with these two values to produce signals TA > 3TS/2, TA < 3TS/2, TA > 5TS/2 and TA < 5TS/2. The coding of the marks used to represent binary digits is given and AND gate 48 and OR gate 47 produce "0" and "1" respectively corresponding to the coding. A further coding and decoding circuit, Figs. 4, 5, 6 (not shown) is described for bar marks having different spacings.
Patent GB-315308-A (GB)
Title: Improvements in electro-optical transmission systems
IPC: H04N7/06
Filed: 1929-07-03
Abstract: 315,308. Electrical Research Products, Inc., (Assignees of Ives, H. E.). July 11, 1928, [Convention date]. Television.-A television system comprises a plurality of channel-terminating means for a corresponding number of transmission channels 61, 62, 63, and a moving member, such as a rotating disc 31 carrying groups of scanning- elements, some at least of which are refracting prisms, for deflecting incident light beams, and each group co-operates with one only of the channels. As shown, three channels are used, and the prisms 1<a>, 2b, 3c are arranged in spiral apertures in the disc in such a way that the light beams from an object 10 incident on successive apertures are deflected to light-sensitive cells 41a, 42<b>, 42c in rotation and that light falls on each cell continuously. The elements of the object transmitted over the different channels are thus interspersed. Analogous apparatus is used at a receiver 80. According to modifications : a large multiple-element glow lamp, as described in Specification 293,308, is used at the receiver (Fig. 6, not shown); a photographic record of the object is made and then scanned (Fig. 7, not shown), and a similar apparatus used at the receiver (Fig. 8, not shown); the photographic record is moved steadily and scanned by prisms in apertures arranged in a circle in the scanning-disc (Fig. 9, not shown). The Specification as open to inspection under Sect. 91 (3) (a) comprises also reflecting prisms as scanning elements. This subject-matter does not appear in the Specification as accepted.
Patent GB-380880-A (GB)
Title: Improvements in floors and floor blocks
IPC: E04C1/40
Filed: 1931-07-16
Abstract: 380,880. Floors ; hollow blocks. BAUER, F., 19, Johannesstrasse, Stuttgart, Germany. July 16, 1931, No. 20379. Convention date, July 16, 1930. [Classes 20 (iv) and 87 (i).] Hollow arched floor blocks to fit between reinforced concrete girders, Fig. 1, are formed on the sides with one or more projections e which are unsymmetrical with respect to the central vertical plane, and the blocks in a row are alternately reversed to produce a toothing to key with the concrete filling f. The blocks may be inserted from below by turning them about one end and locking them in place by a separate piece k, Fig. 5.
Patent GB-1115749-A (GB)
Title: Apparatus for obtaining the product of a first magnitude and a second magnitude which is a function of a variable parameter
IPC: G06G7/57
Filed: 1967-05-02
Abstract: 1115749 Selective signalling COMPAGNIE DES COMPTEURS 2 May 1967 [5 May 1966] 20382/67 Headings G4D D6Y and D7X In a system for computing the product of two variables, e.g. the quantity of fluid flowing down a pipe and its density, one variable (the quantity of fluid) is converted into a corresponding rotation of a shaft 9, Fig. 1, carrying a potentiometer 11 and a pulse producing device 10, the potentiometer producing a linearly rising output, Fig. 2, for each revolution of the shaft, the second variable (density) is converted into a corresponding voltage (by a conventional force balancing loop 4, 5, 6, 7, 8) and for each revolution of the shaft 9 pulses are counted until the voltage from the potentiometer 11 equals the voltage representing the second variable, which occurs at points Cl, C2, C3, &c., Fig. 2. As described the pulses are produced inductively. In a modification a product of the first variable and a function of the second variable can be obtained by making the potentiometer low corresponding to the function.
Patent GB-1300764-A (GB)
Title: Improvements in self-locking threaded element and method of making
IPC: F16B33/06
Filed: 1970-04-28
Abstract: 1300764 Coated bolt USM CORP 28 April 1970 [2 May 1969] 20384/70 Heading B2E [Also in Division F2] A self locking bolt 10 has a patch 12 of tough, resilient, thermoplastic resin adhered to a portion of the threaded surface 14 thereof, the resin being in the form of a series of spaced mounds 20 in the valleys 18 of the threads with the spaces between the mounds being substantially free of resin and the radial thickness of the mounds being at least 75% of the maximum clearance between the threads of the bolt and those of a mating internally threaded member. The bolt may be produced by first applying a coat of resin primer 16 (e.g. a 10% by weight solution of an alcohol soluble nylon and an epoxy resin) to enhance the adherence of the resin and then heating the bolt to a temperature above the softening point of the resin and spraying a stream of fine particles of the resin on the bolt. The rate of supply may be between 5 and 50% of that rate which would produce a uniform coating of resin. The powder particles become fused by heat from the threads and are then cooled to form a firmly adherent resin deposit. Nylon is a preferred thermoplastic resin for use in this process.
Patent GB-1364414-A (GB)
Title: Light-modulating medium for image projection apparatus
IPC: C09K19/54
Filed: 1973-04-30
Abstract: 1364414 Cathode-ray tubes GENERAL ELECTRIC CO 30 April 1973 [18 May 1972] 20433/73 Heading H1D [Also in Divisions H3-H5] In a projection system of the type described in Specification 909,403, the fluid light modulating medium includes tris-(3-phenylpropyl) phosphate in a quantity insufficient to destroy the viscoelastic behaviour of the medium but sufficient to increase its critical quieting thickness CQT. The CQT is described and defined in Specification 1,190,825, as are a nuraber of modulating media suitable for use in the present instance. A preferred medium is a polybenzyltoluene fluid having a viscosity of at least 100 centistokes at 25‹ C. in which is dissolved sufficient polystyrene to promote viscoelastic behaviour. The use of other (trialkyl, triaryl and triaralkyl) phosphates is also referred to.
Patent GB-813600-A (GB)
Title: Improved method of manufacturing semiconductor crystals
Filed: 1957-06-28
Abstract: <PICT:0813600/III/1> A semi-conductor crystal is manufactured by heating a mass comprising a semi-conductor element, donor and acceptor modifiers to form a melt in which the donor modifier exhibits a characteristic variation in segregation factor with changes in interface temperature gradient different from the corresponding characteristic for the acceptor modifier, crystallizing the melt at a predetermined rate while maintaining a first temperature at the interface to produce a crystal zone containing one of the modifiers as the predominant impurity and subsequently altering the interface temperature while crystallizing at the same rate to produce a second zone contiguous with the first in which the other modifier predominates.  The melt is crystallized from a crucible 10 having an inductive heater 11 by means of a seed crystal 14, an inductance coil 25 being suitably positioned to heat inductively the interface 16.  The temperature gradient across the interface may be increased by means of the coil alone or in association with a reduction in the heat of the melt.  To reduce the gradient at the interface, coil 11 may be raised to the position 111, the process steps may be repeated to give successively zones of n-type and p-type conductivity and a mathematical discussion in the Specification indicates the optimum proportions of arsenic and gallium for a germanium melt.
Patent GB-313783-A (GB)
Title: An improved spring suspension for perambulators and the like
IPC: B62B9/18
Filed: 1928-07-14
Abstract: 313,783. Headley, F. H. July 14, 1928. Spring suspensions. - The two C-springs a between which the body is slung have mounted upon them flat blade or leaf springs c which carry the wheel axles c<1>. The C-springs are suitably braced together by transverse and diagonal members. In a modification the middle part of the C-springs on each side of the vehicle is made rigid by a girder structure consisting of the best member d<1> rivetted at each end to the spring and in the middle to the block d which carries the blade or leaf spring c.
Patent GB-583556-A (GB)
Title: Improvements connected with the operation of a.c. commutator machines
IPC: H02K27/16
Filed: 1944-10-23
Abstract: 583,556. Control of A.C. motors. SCHWARZ, B. Oct. 23, 1944, No. 20536. [Class 38 (iii)] An A.C. commutator motor or converter has a voltage proportional to its load injected into its armature circuit directly or indirectly by an auxiliary commutator machine having excitation varying with the load on the main machine. In the form shown, a voltage proportional to that produced by the series-wound auxiliary generator AM is injected into the armature circuit of main motor M by the inductive coupling of one primary winding P2 of the induction regulator 1R with its secondary winding in the brush circuit of the main machine. In a modification, the series excited auxiliary machine is in a series circuit also comprising the armature of the main machine and the secondary winding of an induction regulator the primary of which is connected to the main motor supply. In a further alternative, the exciting current of the auxiliary machine is derived from the starter circuit of the main motor. The auxiliary machine may have a compensating winding in slots in salient exciting poles. Specification 557,112 is referred to.
Patent GB-228955-A (GB)
Title: Improvements in or relating to means for raising, lowering and transferring loads
IPC: B66C13/56
Filed: 1923-08-13
Abstract: 228,955. Mitchell, r. G. Aug. 13, 1923. Transporters; gantries.-The boom a mounted for slueing between stops about a vertical axis comprises a balanced horizontal member stiffened by overhead bracing means g, h and pivoted in the transporter structure above and below the runway by means of a vertical part e mounted in bearings b, f or by means of a turntable arranged so that the jenny can travel from one side to the other of the slueing axis. The transporter structure comprises inclined frame members o, p supported at r, and vertical members s supported at t. The supports r, t may be wheeled frames or trucks running on transverse rails, and the members s may be hinged at s' to adapt the structure to tracks of different gauges. For raising the outer end of the boom to clear obstructions, the boom may be hinged at i and lifted by hauling on the tie rope h, h<1> which passes round sheaves j, j. A hopper 1 is carried on the transporter structure for loading into vehicles brought between the supports r, t. The boom is partly counterbalanced by the hoisting mechanism. Specification 173,330 is referred to.