baber/WOPTO huggingface dataset:
Patent GB-987739-A (GB)
Title: Improvements in and relating to heat exchanger elements
Inventor: HARDY LEWIS EMPSALL
IPC: F28F1/32
Filed: 1963-05-01
Abstract: 987,739. Composite articles. SENIOR ECONOMISERS Ltd. Jan. 20, 1964 [May 1, 1963], No. 17112/63. Heading B3F. A heat-exchanger element comprises a finned tube unit having a pair of parallel metal tubes a and b which are united by a finned element, with a junction part c, composed of metal cast around the tubes in a mould. The tubes have roughened surfaces to afford good thermal contact and keying with the cast metal.
Patent GB-943179-A (GB)
Title: A process for the manufacture of 1,1,1-trichloroethane
Inventor: WIKMAN ANDREW OLAF
IPC: C07C17/10
Filed: 1962-05-04
Abstract: Methyl chloroform is prepared by preheating 1,1-dichloroethane to a temperature of from 250 DEG  to 500 DEG F. and mixing with chlorine in a mol. ratio of from 1:0.25 to 1:0.4 and reacting in a fluidised bed consisting of iron-free sand, the 1,1-dichloroethane/chlorine mixture fluidising the bed at 600 DEG  to 800 DEG F.  Atmospheric or super-atmospheric pressure may be used, e.g. up to 100 p.s.i.g.
Patent GB-864065-A (GB)
Title: Improved methods and apparatus for packing tobacco and similar fibrous materials
Inventor: BROTHWELL ALEXANDER BROWNLOW G
IPC: B65B1/24
Filed: 1957-05-30
Abstract: 864,065. Packaging fibrous materials. IMPERIAL TOBACCO CO. (OF GREAT BRITAIN & IRELAND) Ltd. Sept. 1, 1958 [May 30, 1957], No. 17239/57. Class 94(1). [Also in Groups XXIV and XXX] An apparatus for packing tobacco or similar fibrous material in lined rectangular trays includes a horizontal circular table 36, having pockets 64 that can be halted opposite a pusher 63a adapted to push an empty tray into each pocket 64 in turn. Each tray slides on a fixed table 35 below the table 36 to a first station where a suction device 53 lifts a cruciform shaped liner blank 59 from a stock of blanks and transfers it on to a tray. At the next station a sleeve member 40, Fig. 1, descends to a position spaced from the top of the liner and a plunger 57 reciprocates through the sleeve 40 and into the tray to press the blank 59 therein and cause it to line the base and the four upstanding walls of the tray, the blank being such that this action also forms upstanding flaps surrounding the lower edge of the sleeve 40. At the next station 65 a predetermined quantity of tobacco is delivered to the lined tray through the sleeve 40, and at station 66 a spreading mechanism comprising fingers 96 descend into the tobacco and then move outwardly towards the corners of the tray to spread the tobacco throughout the lined tray. The fingers, in their spread condition, then rise to their initial position before closing again. At station 67 a plunger 79 consolidates the tobacco in the tray whereafter the sleeve member 40 rises and the tray moves to a final station where a plunger 83 pushes the tobacco filled tray from the table 36 into a take off conveyer 84. The conveyer 84 includes a plunger 85 with a folder 86 that folds down the rear extending flap as it pushes the filled tray along the conveyer past ploughs folding down the side and front flaps. If the trays have pivoted lids these may be opened and closed by ploughs on conveyers 63 and 84 respectively. The step-by-step motion of the table 36 is by a motor driven cam 90 engaging slots in a geneva wheel 91. The sleeve members 40, rotating with the table 36, are raised and lowered by rollers 44 engaging a cam track 45. The plungers 63a, 57, 83, 85, the suction device 53, and the fingers 96 are all pneumatically operated by cam controlled valves 20,21,22,23. Modified construction. The Provisional Specification describes a construction in which the table 36 has a trap door fitted in each pocket 64. The trays are held on the trap doors until the final station is reached, at which point the trap door opens and the filled tray drops down on to a disposal shoot. Weighed quantities. The apparatus for measuring weighed quantities of tobacco may be that described in Specification 620,433 and such quantities, initially held in buckets, are tipped into a funnel directing the tobacco through the sleeve 40 and into the lined tray below the sleeve. The arrival of a tray below the funnel coincides with the emptying of a bucket into the funnel.
Patent GB-1165557-A (GB)
Title: Coherent FM Radar Ranging System.
IPC: G01S13/28
Filed: 1967-04-14
Abstract: 1,165,557. Frequency modulation radar. INTERNATIONAL STANDARD ELECTRIC CORP. 14 April, 1967 [18 April, 1966], No. 17276/67. Heading H4D. The Specification describes a frequency modulated radar transmitting a series of short frequency modulated pulses of width T p  (line 4, Fig. 2) and using a spectrum analyser 24, Fig. 1, to analyse the resultant beat signals (a) Fig. 5, wherein, so that the resultant frequency analysis (b) shall have a narrow central position of width 2/T n , giving a range resolution better by a factor of T n /T p  than that produced by analysing a single pulse (i.e. dotted envelope), the frequency variations of the series of (N + 1) pulses (line 4, Fig. 2) form co-linear portions of a continuous linear frequency variation of duration T n . In the system of Fig. 1, a ramp generator 10 produces a series of linear frequency ramps (line 1, Fig.2), varying in frequency from f 0  to (f 0  + B + S s .#t), having a duration of (T p  + #t) and period T r . The ramps are gated through respective gates 11 1  . . . 11 n  by means of gate pulses of width T p  (line 2, Fig. 2). The first ramp is amplified at 131 for transmission and the succeeding ramps are mixed with successively higher frequencies f 1 . . . f n  in mixers 14 2  ... 14 n  to produce pulses for transmission (line 4, Fig. 2) having the desired co-linear frequency variation. The ramp generator output is delayed at 20 by a time T d <SP>1</SP> equivalent to an assumed coarse range of the target and the ramps distributed into the appropriate path of the coherent local oscillator by means of gates 19 1  ... 19 n  and gating pulses. To produce an I.F. frequency f 1F  in the beat signals, frequencies f 1F ,f 1F  + f 1 ,f 1F + f 2 ... f 1F  + f n  are added to the respective ramps in mixers 21 1  ... 21 n . Each echo pulse is mixed with its delayed transmitted equivalent in mixer 23 to produce the coherent series of pulses of beat frequency shown at (a) Fig. 5. In the arrangement of Fig. 4 (not shown), each series of mixers (14 2 -14 n ), (21 1 -21 n ) and amplifiers (13 1 -13 n ), (22 1 -22 n ) are replaced by a single mixer and amplifier, each single mixer being fed with the generator output, direct and delayed, and by the gated heterodyning frequencies f 1  . . . f n  and f 1  + f 1F  ...f n  + f 1F .
Patent GB-166501-A (GB)
Title: Improvements in or relating to machines for cutting weft-pile fabrics
IPC: D06C13/08
Filed: 1919-09-01
Abstract: 166,501. Drey, Simpson, & Co., Ltd., Drey, O., and Byrd, H. L. Sept. 1, 1919. Pile, cutting. - In machines for cutting weftpile fabrics, the fabric 2, which is operated upon in an endless condition, passes from the creeper 10 over a roller or bar 71 carried by spring-controlled levers 72, then over a roller 75 mounted in inclined slots 76, and over or round stationary rollers &c. 77 - - 81 and rollers &c. 82, 83 mounted in a pivoted frame 84, whence the fabric passes to idler rollers 11, 12 and around a roller 13 on the back shaft 14 to an idler roller 15 and thence to the front of the machine. The tension of the fabric, when it is passing in a forward direction through the machine, keeps the pivoted frame 84 in the position shown in Fig. 1, but when the shaft 14 is driven reversely, so as to reverse the direction of travel of the fabric, the frame falls to the position shown in Fig. 4, and thereby takes up the slack or accumulation of fabric occurring on reversal, a stretch of fabric between the rollers &c. 78, 82 being carried by the frame into contact with an oppositely-moving stretch of fabric passing over the roller &c. 71, thereby ensuring that the frame will take up slack without drawing fabric from the folds or pleats on the creeper. The roller &c. 71 may be replaced by a stationary roller &c.
Patent GB-717211-A (GB)
Title: Improvements relating to anaesthetics
IPC: C07C271/06
Filed: 1952-07-10
Abstract: Anaesthetics of the formula <FORM:0717211/IV (b)/1> where R1 and R3 are alkyl or alkoxy groups, R2 is hydrogen, or an alkyl or alkoxy group, R4 is a hydrocarbon chain of up to 6 carbon atoms, and R5 and R6 are hydrogen or alkyl groups which, together with the nitrogen, may constitute a heterocyclic ring, are prepared by reacting an aromatic amine of the formula <FORM:0717211/IV (b)/2> with a haloformic acid ester of the formula <FORM:0717211/IV (b)/3> where X is halogen, or its salt.  In the examples (1) 2,4,6-trimethyl carbanilic acid diethylaminoethyl ester is prepared from chloroformic acid-diethylaminoethyl ester and mesidine in benzene solution; (2) 2,6-dimethyl-4-n-butoxy carbanilic acid piperidino-n-propyl ester is prepared from 2,6-dimethyl-4-n-butoxyaniline and chloroformic acid piperidino-n-propyl ester in benzene solution; (3) the hydrochloride salt of (1) is prepared by using the hydrochloride of the chloroformic acid ester.  Specification 717,214 is referred to.
Patent GB-1212793-A (GB)
Title: Improvements relating to disc brakes for vehicles
Inventor: CAREY MICHAEL ALBERT
IPC: F16D55/00
Filed: 1968-04-11
Abstract: 1,212,793. Disc brakes. GIRLING Ltd. 19 March, 1969 [11 April, 1968], No. 17453/68. Heading F2E. A disc brake comprises an assembly of cooperating friction members including axially movable rotatable members 16, 17 alternating with axially movable non-rotatable members 21, 22 located between two stationary walls at right angles to the brake axis, one of the walls comprising two flat rings 14, 15 rigidly secured together with their adjacent faces abutting, the ring 15 adjacent the assembly containing fluid actuating pistons 23 which apply axial pressure to the assembly. The rotatable members 16, 17 carrying pads 18 slide on a splined shaft 12 of a tractor transmission in a housing 10 having a fixed end wall 11 from which bolts 13 extend carrying the rings 14, 15 and on which members 21, 22 slide. The piston cylinders 24 are interconnected by an annular fluid supply passage 26 in ring 14. The brake is operated dry or immersed in oil.
Patent GB-1072040-A (GB)
Title: Method of making composite strip bearing material
IPC: B23K20/227
Filed: 1966-04-21
Abstract: 1,072,040. Making composite metal bearing strip; jointing by rolling. GENERAL MOTORS CORPORATION. April 21, 1966 [June 24, 1965 (2), No. 17475/66. Headings B3A and B3M. In a method of making a composite-metal bearing strip, a bearing layer strip containing 7-30% tin, preferably 1% copper remainder aluminium is annealed so as to recrystallize the aluminium. The strip is cleaned and etched so that on the bonding surface the tin is dissolved leaving a substantially pure aluminium network. The backing strip is of low carbon steel and may have an aluminium or aluminium alloy coating on the bonding surface. The steel strip is degreased, annealed or normalized and then washed or it may be roughened on the bonding surface. The tin-aluminium strip is heated to 350‹-450‹ F. and the steel to about 450‹ prior to passing through cladding rolls which reduce the bearing layer strip by about 50-80% thickness and the steel strip by about 15-35%. Finally the strip may be annealed to enhance the bonds and recrystallize the aluminium in the strip. If any tin sweats out of the surface of the bearing layer, it is removed mechanically.
Patent GB-629974-A (GB)
Title: Improvements in or relating to bore hole, well or shaft linings
IPC: E21B43/08
Filed: 1947-07-02
Abstract: 629,974. Filters. TEMPLETON, J. C. July 2, 1947, No. 17485. '[Class 46] [Also in Group XXI] A lining tube for a borehole, well or shaft comprises a tube of hardened synthetic plastic material with apertured walls and a metal rei n f o r cement, such as iron, steel, light metal alloy or brass, wholly embedded in the plastic material, whereby electric or magnetic surveying &c. instruments may be used at any part of the borehole &c. As shown, the plastic tube 10 is reinforced by embedded rings 11 spaced from the apertures 12. In place of, or in addition to, the rings 11, longitudinal reinforcing rods may be used; at each end, such rods may project into parts for giving connection to an adjacent tube, such as a pair of diametrically opposed dove-tail projections laterally engaging similar recesses in the adjacent tube. In another form, the reinforcement comprises wire mesh. According to the Provisional Specification the reinforcement may be perforated or slotted.
Patent GB-766905-A (GB)
Title: Improvements relating to the insulation of high-voltage electrical apparatus
IPC: H01B17/28
Filed: 1954-06-15
Abstract: 766,905. Transformers. REYROLLE & CO., Ltd., A., and MOSER-GLASER & CO., AKT.-GES. June 15, 1954 [June 15, 1953; Feb. 1, 1954; Feb. 5, 1954; Feb. 5, 1954; April 13, 1954], No. 17513/54. Class 38 (2). [Also in Group XXXVI] The insulation of a current or potential transformer is in two parts, the inner part comprising solid non- rigid type of material such as paper, wax or a thermoplastic material, the outer part comprising a casing of low-moulding pressure synthetic resin. A current transformer comprises a core 10 surrounded by a toroidal secondary winding 11. A primary winding and lead-in conductor are contained in a ring 12 and tube 13, the ring 12 being linked with the core 10. The ring 12 and tube 13 are embedded in an insulation 14 of wound paper which is then embedded in a casing 15 of synthetic resin. Stress distributing foils 17 are arranged in the paper insulation 14 and an earthed metal coating 19 is applied to the bulbous end of the casing 15. The embodiment shown in Fig. 3 is of a straight-through bushing type current transformer in which the wound paper insulation 33 is partly surrounded by the core 30 and partly by the synthetic resin casing 34. The synthetic resin casing may only be applied at the ends, a metal tube forming the centre part of the casing. The inner part of the insulant may be impregnated with any suitable material which may be maintained at a pressure higher than atmospheric. The outer casing may be in two parts which may be of different resins. In the embodiment shown in Fig. 3 the magnetic core 30 and the secondary winding 31 may be replaced by an earthed metal flange, the apparatus then becoming a condenser-type bushing insulator. Specifications 507,000, 537,206 and 537,268, [Group XXXVI], are referred to.
Patent GB-1438068-A (GB)
Title: Servomechanism
IPC: G05D3/18
Filed: 1974-04-22
Abstract: 1438068 Servosystems CINCINNATI MILACRON Inc 22 April 1974 [13 June 1973] 17543/74 Heading G3N In a servo-mechanism wherein generally sinoidal feedback signals substantially in phase quadrature are provided by element 26 in response to movement of movable element 24, and converted to pulse form to provide signals representative of the actual amount and direction of member 26 movement with resolution corresponding to the period of the feedback signals, to avoid hunting due to drift, there is provided a dither circuit 10, see also Fig. 2 (not shown) comprising a signal generator (40) whose cosinoidal and rectified sinoidal outputs; of frequency substantially greater than the hunting frequency of the servo-mechanism, such output frequency being in addition higher than the greatest frequency to which the servo-mechanism can respond; are multiplicatively and additively combined with the feedback signals, to change the latters' phases cyclically providing modified feedback signals. The modified signals converted to pulse form are passed to logic circuit 30 providing pulses via one or other of gates 12, 14 selectively receiving command pulses, command and feedback pulses changing the state of counter 16 in opposed senses. The d/a converted counter output, amplified, controls motor 22. The feedback element may be an optical grating encoder, with adjustable light intensity to control the feedback waveforms. The means whereby the dither circuit 10 converts the outputs cos #, sin # of the element 26 into the modified forms cos (0 + #), sin (# + #): or cos (# - #), sin (# - #); respectively in alternate half periods T/2 of the dither waveforms from generator (40){dither phase # = 2#t/T} are discussed in the Specification.
Patent GB-1145316-A (GB)
Title: Improvements in or relating to precast headwalls
IPC: E01F5/00
Filed: 1967-04-17
Abstract: 1145316 Precast head wall J K HOARE 29 Feb 1968 [17 April 1967] 17562/67 Headings E1C and C48 A head wall assembly comprises a precast head wall 1 having a drain pipe aperture 4 and a precast base-plate 2. The base-plate 2 has an extension 6 extending back from the head wall 1 widening out in a zone 9 remote from the head wall. The head wall 1 has a tongue (10), Fig. 4 (not shown), which engages in aperture (8) in the base-plate. A groove 12 in the underside of the base-plate prevents drops of water running along to the bank.
Patent GB-1067206-A (GB)
Title: A control circuit for a spark erosion machine
IPC: H03K5/01
Filed: 1965-04-27
Abstract: 1,067,206. Spark erosion. DEUTSCHE EDELSTAHLWERKE A.G., and ALLGEMEINE ELEKTRIGITATS - GESELLSCHAFT. April 27, 1965 [April 30, 1964], No. 17752/65. Heading B3V. In a spark erosion machine, the spark gap 2 is fed through an electronic switch 4, Fig. 4 (not shown), controlled by a timing device 5, and a feedback 9 is provided between the output of the switch and its control circuit. The switch is preferably a transistor 4 feeding a D.C. supply 1 to the gap 2 through a resistor 3. The transistor 4 is triggered by a pulse generator 5 acting through a control transistor 7 supplied from a second D.C. source 15. A feedback loop 9, including capacitor 10 and parallel resistor 11, is connected between the collector of transistor 4 and the base of control transistor 7. In a modification, Fig. 6 (not shown), transistor 7 is of the NPN type. In another embodiment, Fig. 5 (not shown), the feedback is provided by an emitter resistance 16 common to the two transistors. A plurality of transistors connected in parallel may be used instead of a single power transistor. The control or power transistors or both may be replaced by one unijunction transistor.
Patent GB-1005628-A (GB)
Title: Improvements in and relating to packaging boxes
IPC: B65D5/56
Filed: 1964-04-29
Abstract: 1,005,628. Cartons. AKERLUND & RAUSING A.B. April 29, 1964 [May 14, 1963], No. 17753/64. Heading B8P. A carton having inwardly foldable sealing flaps 4, 5 is closed by a separate diaphragm 6 which is placed over the mouth of the box on top of interior lining pieces 8, which when the flaps are folded outwards, each fold along two lines 10, 11 starting from the carton corner, thus causing the lining 8 to lie flat. The flaps are then folded inwards on top of the lining and diaphragm.
Patent GB-313318-A (GB)
Title: Improvements in vacuum electric tube devices
IPC: H01J19/38
Filed: 1928-06-19
Abstract: 313,318. Robinson, E. Y., and Associated Electrical Industries, Ltd. June 19, 1928. Vacuum tubes.-In tubes having a thermionic cathode surrounded by a tubular grid and an anode, and operating with a substantially pure electron discharge, the grid electrode consists of two openwork tubes 2, 4 adjacent one another and connected electrically together within the tube. The supporting wires 1, 3 of the tubes may be welded together. The two tubes may consist of helices of different pitch, e.g. of 80 and 36 turns to the inch respectively, or one tube may consist of a helix and the other of gauze or of parallel rods. The electrode may be used as an ion collector or as a screening-grid. According to the Provisional Specification, the two grid tubes may be separate and operated at different potentials.
Patent GB-497758-A (GB)
Title: Improvements in or relating to moving contact electric current converters
IPC: H02M1/26
Filed: 1937-06-26
Abstract: 497,758. Converting. SIEMENSSCHUCKERTWERKE AKT.-GES. June 26, 1937, No. 17829. Convention date, June 29, 1936. Addition to 492,369. [Class 38 (ii)] In a commutator switch converter in which sparkless break at the contacts 14 is obtained by connecting in series therewith a saturable choke 13 and in parallel therewith an impedance path comprising, for example, a condenser 23 and resistance 24, as described in the parent Specification, an auxiliary alternating voltage of adjustable phase and magnitude is injected into the circuit so as to force current through the series choke 13 immediately before closing of the contacts whereby the contacts are relieved of operating voltage at the moment of closing. The auxiliary voltage may be produced by a generator driven synchronously with the supply voltage and adapted to supply voltage of the required wave form. Alternatively, the auxiliary voltage may be produced by a transformer 20, the primary 21 of which is excited from the supply network 11 through a phase shifter 25. A D.C. excited biassing winding 19 may be provided on the transformer 20 to enable the rectangular voltage impulses produced in the secondary to be shifted in phase so that the impulses of unwanted polarity do not interfere with the operation of the choke 13 during opening of the contacts. Specifications 492,807 and 492,887 are referred to.
Patent GB-672508-A (GB)
Title: Method of transmitting driving power on a vehicle
IPC: B60L15/06
Filed: 1950-07-17
Abstract: 672,508. Control of A.C. motors. MASCHINENFABRIK OERLIKON. July 17, 1950. [Aug. 6, 1949] No. 17860/50..Class 38 (iii). [Also in Group XXXV] A method of. transmitting power by means of three-phase current on a vehicle which is provided with at least one motor indirectly driving the axle mechanically, is characterised in that the driving motor is a changeable pole short circuited armature motor; the ratio of the minimum to the maximum number of poles not exceeding 1 : 3, and a generator having poles changeable in the ratio 1 : 3 is employed for feeding the motor. Single winding motors changeable to 4, 6 or 8 alternatively or to 8 or 12 poles may be used, or double winding motors changeable to 4, 8, 6 or 12, or, alternatively, 6, 12, 8, or 16 poles. For lighter duties, motors having poles changeable only in the ratio 1:2 may be used. According to the speed of the driving machine the generator may have poles changeable from 2 to 6, or 4 to 12, 6 to 18 or 8 to 24. It is stated that with pole changing of the generator in the ratio 1 : 3 it is possible to provide a good winding factor. Specification 19903/11, [Class 38 (iv)], and U.S.A. Specification 1,598,268 are referred to.
Patent GB-1057013-A (GB)
Title: Improvements in or relating to vehicles having a receptacle for carrying granular material
Inventor: ATKINSON RICHARD LESLIE
IPC: B60P1/36
Filed: 1964-04-29
Abstract: 1,057,013. Discharging bulk material. ATKINSON'S OF CLITHEROE Ltd. April 23, 1965 [April 29, 1964], No. 17864/64. Heading B8E. Bulk material is ejected from a vehicle body by a movable bulkhead 22 which is pulled towards the rear by four stainless steel wires 28, which are attached one to each corner, and pass round pulleys 29 to be connected at 30 to drive chains 26. The latter pass round sprockets 27 which are synchronously driven by a motor 36. A power take-off shaft from the vehicle engine or an hydraulic pump drives the motor 36. Felt sealing strips are provided on the bulkhead and bottom and side rollers. Discharge is through either rear doors 16 or bottom doors 19.