baber/WOPTO huggingface dataset:
Patent GB-825392-A (GB)
Title: Method and apparatus for manufacturing corrugated thermoplastic sheets
IPC: B29C53/26
Filed: 1958-03-28
Abstract: 825,392. Moulding corrugated sheets of thermoplastic synthetic resin. S. A. S. LAVORAZIONE MATERIE PLASTICHE (L.M.P.) DI M. I. COLOMBO & CO. March 28, 1958 [April 5, 1957 ; Feb. 1, 1958 ; March 4, 1958], No. 10051/58. Class 87(2). In a method of longitudinally corrugating a web of thermoplastic synthetic resin material the web is heated to its softening temperature, and is then drawn along and forced into the corrugations of a cooled mould whilst maintaining its original width. A web 14, Fig. 1, of a polyvinyl, methacrylic, polyethylene or other thermoplastic resin obtained by cutting a tube 12 extruded from a nozzle 11 is flattened between cooled moulds 40, 41 and drawn by rollers 15, 16 and 19, 20 along a path between infra red radiators 25, 26 and between corrugated moulds 27, 28 and 27<SP>1</SP>, 28<SP>1</SP>. The latter consist of metal casings filled with. cooling water and having complementary corrugated moulding surfaces, the web being pressed into the corrugations by the weight of the upper mould assisted if desired by a spring 42. The moulds 27, 28 and 27<SP>1</SP>, 28<SP>1</SP> may be replaced by moulds 127, 128, Figs. 4 and 5, comprising hollow metal cylinders 50 ... 50n and 50<SP>1</SP> to 50<SP>1</SP>m interconnected by tubes 53, 54 and 53<SP>1</SP>, 54<SP>1</SP> through which cooling water is supplied to the cylinders. In an alternative apparatus, Fig. 11 (not shown), the rollers 19, 20 are replaced by a pair of endless belts and the moulds 100, 107, Fig. 12, form corrugations of dove-tail cross-section. The mould 107 is suspended from rails (not shown) so that it may be moved horizontally into interlocking engagement with the mould 100 after the web has been passed over the corrugated surface of the latter. In a further construction a single corrugated mould only is used into the corrugations of which the web is first pressed by U-shaped tubular members and then maintained in contact with the corrugated surface by suction.
Patent GB-617905-A (GB)
Title: Improvements in or relating to screw blanks
IPC: B21K1/46
Filed: 1946-04-02
Abstract: 617,905. Making screw blanks. WATERBURY FARREL FOUNDRY & MACHINE CO. April 2, 1946, No. 10167. Convention date, April 21, 1945. [Classes 83 (ii) and 83 (iv)] Forging; extruding; cupping; dies.-A method of making a screw blank with a socketed head comprises cutting a workpiece from a length of solid stock, heading the workpiece and extruding the body thereof while forming a socket in the head with flattened areas on the side walls of the socket. The forming of the blank is carried out in a machine comprising a die holder with a number of dies which co-operate with a number of punches carried by a reciprocating gate. The blank is transferred from station to station by known mechanism. At the first station a length of rod stock is severed and then moved into the path of a punch 20 at the second station, Fig. 2, by which it is pushed into a die 17 and upset to form a conical head portion 23. After ejection by a pin 19 the blank is moved to the third station, Fig. 3, where the head is again upset to the form shown and in addition is indented at 34 by the coned end 30 of a pin 29 operating within the punch 28. At the fourth station is a further heading-die 35, a backing-die 36, an extruding- die 37 and another backing-die 38, while the punch 41 has a conical tip 44 on a hexagonal or other polygonal base, the sides of the polygon constituting the ends of flat faces 43 tapering at an angle of approximately twelve degrees relatively to the cylindrical outline of the punch. The tip 44 engages the indentation 34 and pushes the blank into the dies so that the forward end is extruded through the throat 46 of the die 37 to form the portion 45 to be screwthreaded. In addition, the head is further shaped externally by the die 35 and is formed with a conical socket of roughly polygonal cross-section by the punch 42 as shown in Fig. 4. At the fifth and last station, Fig. 5, the punch 54 has a cylindrical end of polygonal cross-section adapted to enter the previously formed socket and to push the head through a die 51 having a throat 52 by which the head is drawn to cylindrical form externally and is closed in over the punch to form a cylindrical socket of polygonal cross-section. During this operation, the stem of the blank is supported within a tubular guide 53 which moves rearwardly with the work. On the withdrawal of the punch, the blank is stripped by a member 57.
Patent GB-1359212-A (GB)
Title: Waveform generator and phase shifter
IPC: H03L7/099
Filed: 1971-04-20
Abstract: 1359212 Waveform generator ELLIOTT BROS (LONDON) Ltd 17 April 1972 [20 April 1971] 10200/71 Heading G4H In a synchro system, an A.C. output signal phase-locked to an A.C. reference signal and of amplitude proportional to a sinusoidal function of a phase angle, is formed by generating a pair of sinusoidal signals of fixed amplitude at the frequency of the reference signal and differing in phase by twice said angle, and summing said sinusoidal signals. As shown, the phase angle is fed in 12-bit binary form to a register 20. The upper 8 bits, and their ones complement, are used to select the starting points of cyclic counters 30, 33 for addressing a read-only memory 22 storing a representation of one cycle of a sine wave in pulse density form. The lower 4 bits are used to select two of 16 possible outputs of a slow clock generator 24 comprising a 16-stage ring- counter stepped by pulses from a fast clock 11 synchronized with the A.C. reference signal. Clock 24 controls gates 31, 35, 41 and 44 so that in one cycle of the reference signal, pulse density coded signals representing sin (#t+#) and sin (wt - #) are fed into recirculating shift registers 40 and 43, respectively. Sin and cos signals are taken from each of the shift registers from its end and ¥ way stage respectively and combined, Fig. 2 (not shown), to give sin #. sin wt and cos #. sin wt signals which are filtered and converted to three-phase signals in a Scott transformer (60). A plurality of synchro channels may share acommon read-only memory and address generator circuit.
Patent GB-1033324-A (GB)
Title: Method of making a composite elastic sructure and the product thereof
IPC: B29D30/00
Filed: 1964-03-11
Abstract: A polyurethane coating composition comprises a liquid reaction mixture of (1) an organic polyisocyanate, (2) a reactive hydrogen containing polymeric material such as the polyesters, polyesteramides and polyethers dissolved in sufficient solvent to yield a sprayable mixture, and (3) sufficient diamine or glycol cross-linking agent to react with the free polyisocyanate. Numerous examples of (1), (2) and (3) are given.  The compositions may also contain carbon black, pyrogenic silica, and cellulose acetate-butyrate.  The composition may be used for re-treading tyres.ALSO:Successive spray coats of a liquid reaction mixture comprising a reactive-hydrogen-containing polymeric material (e.g. a polyester, polysteramide, or polyether) an organo polyisocyanate and a cross-linking agent which is a diamine or a glycol are applied to the clean surface of a cured rubber composition (e.g. a natural or synthetic rubber vehicle tyre) to form a built-up layer, and cured to form an integral composition.  A layer of a cement such as a dispersion of an epoxy resin, a dispersion of a polychloroprene, or a cement containing a polyarylene polyisocyanate may be used before the polymethane-forming mixture. Material such as sand may be added to the last or to the penultimate layer of reaction mixture before curing.
Patent GB-1253874-A (GB)
Title: Improvements in or relating to stabilized chlorobutadienes
Inventor: REED THOMAS GRAVES JR
IPC: C07C17/42
Filed: 1969-02-26
Abstract: 1,253,874. Stabilization of chlorobutadienes. PETRO-TEX CHEMICAL CORP. 26 Feb., 1969 [27 Feb., 1968], No. 10224/69. Heading C2C. Chlorobutadienes, e.g. chloroprene, are stabilized by the addition thereto of an adduct of nitrogen tetroxide (N 2 O 4 ) and propylene trimer in an amount not exceeding 500 p.p.m.
Patent GB-197165-A (GB)
Title: Improvements in and relating to spark plugs
IPC: H01T13/22
Filed: 1922-04-10
Abstract: 197,165. Hills, W. F., Chard, W. H., and Eastman, O. S. April 10, 1922. Sparking-plugs.-A stub 23 embedded eccentrically in the insulation is within sparking distance both of the contacts 24, 26 on the casing and of the bent ends of parallel electrodes 14, 16 or the forked and bent ends of a single electrode. A second porcelain insulator 19 preferably encloses the outer end of the insulator 13.
Patent GB-900399-A (GB)
Title: Box opening and contents discharging apparatus
Inventor: COPPING BRUCE GRAY
IPC: B65B21/22
Filed: 1960-03-23
Abstract: 900,399. Emptying boxes. ATKRON Inc. March 23, 1960, No. 10255/60. Class 94(1). Filled cartons are fed to apparatus which opens a pair of side flaps at the upper end, inverts the cartons and moves them to a position where the contents are unsupported and may discharge downwards, The cartons 5 are fed by a conveyer 3 past a plough 14 and rollers 100, the latter slightly bowing upwardly the side flaps 6 so that the plough may slide beneath and open them. A hook member 18 on a pivoted arm 15 engages under the trailing end flap 8 and opens it, and the cartons pass along a shoot 13 to a discharge position in which the contents 9 drop on to a conveyer 29. During discharge, opposed arms 27 tap opposite sides of the cartons. The laterally extending side flaps enter the nip of belts 24 travelling with a pair of drums 22 and the empty cartons are carried upwards to be ejected on to a discharge conveyer 30. The apparatus is adjustable for various carton sizes. U.S.A. Specification 2,916,133 is referred to.
Patent GB-1420850-A (GB)
Title: Audio play-back system and play-back apparatus and audio medium  therefor
IPC: G11B25/04
Filed: 1973-03-02
Abstract: 1420850 Stationary record gramophone E DORING 2 March 1973 10268/73 Heading G5R In a stationary record, rotating pick-up gramophone, in which a registering arrangement is provided for positioning the gramophone over the record, a conducting or magnetic element is provided on the record which acts to close a pair of contacts in the pick-up drive circuit when the gramophone is correctly positioned relative to the record.  When registering and support feet 6 of the gramophone 1 engage in registering apertures in record 3 a third support foot 6a carrying a pair of contacts in the supply circuit to the pick-up drive motor, engages on a conducting patch 12 on the record. Alternatively each record can have three registering apertures 10 each backed with a conducting patch 12 and these are joined by conducting straps 16 so that a contact can be provided in any two of the gramophone registering feet. In a further arrangement, Fig. 6. (not shown), a number of patches are provided with a corresponding number of pairs of contacts connected in series. When the record is circular its edge is raised like a plate to provide a registering edge which co-operates with a circular recess in the gramophone base or with three registering feet and a conducting patch is provided to co-operate with the contacts in the motor supply circuit. As the records are normally secured to pages of a talking book the raised edge can be cut radially, Fig. 11 (not shown), to allow the record to lie flat when the book is closed.
Patent GB-1460805-A (GB)
Title: Grinding mill
IPC: B02C15/02
Filed: 1974-03-07
Abstract: 1460805 Roller and ring mills, ball and ring mills MASCHINENFABRIK GUSTAV EIRICH 7 March 1974 [14 March 1973] 10286/74 Heading B2A A mill comprises a container 1 and a grinding member carrier A', 30 Fig. 1 supporting pivotally mounted trailing arms 32 with grinding members 3 rotatably mounted on the arms 32, Fig. 3. The carrier and the container are rotatable either in the same or in opposite directions at overcritical speeds. The container 1 is driven by a pulley S, and the carrier A', 30 is driven by a pulley S' and coaxial central shaft A. Streamlined weights 34 can be supported on the shafts 33 of the grinding members 3 to increase grinding pressure. The grinding members are preferably mounted in pairs with one above and one below the arm 30.  Feed to the container is via a pipe 40 or 40' and fines are sucked out via a pipe 43. Air is impelled into the container by a bladed wheel 5 via a pipe 41, the amount of air being governed by adjustment of blades 51 Fig. 3 on the wheel. A cyclone or similar separator can be used with recycling of air via the pipe 41. Each grinding member may comprise a single large roller (3a) Fig. 4, not shown, or smaller rollers 3b on arms 30b, Fig. 5. This embodiment is particularly suitable for use with balls. An alternative embodiment employs out of weights, Fig. 6, not shown. The members are arranged in opposed pairs, or different sizes from pair to pair.  A further embodiment emloys an eccentric carrier and the grinding rollers have a hub 3a Fig. 7 (not shown) with a resilient e.g. rubber layer 3b surrounded by a hard grinding ring 3c. The swing arms extend beyond the roller shafts and are governed by adjustable springs 54. A still further embodiment includes sealing by a compressed air filled tube 57 Fig. 8 to permit grinding under reduced pressure or in an atmosphere of low temperature gas. The drive motor 59 has two output shaft ends 60, 61 driving the container 1 and carrier A' respectively. The shaft end 61 and drive belt S' and carrier serves as a brake on the container. Discharge is via a hood 63 and stationary hopper 64. A screw conveyor may be used to facilitate discharge. Ventilation ribs may be fitted on the end faces of the grinding members 3.
Patent GB-1132921-A (GB)
Title: Dehydration of magnesium chloride
IPC: C01F5/34
Filed: 1966-03-09
Abstract: 1,132,921. Magnesium chloride. ESSO RESEABCH & ENGINEERING CO. 9 March, 1966 [26 March, 1965; 14 July, 1965], No. 10334/66. Heading C1A. Magnesium chloride is dehydrated by contacting it in a first reaction zone with ammonia and a liquid hydrocarbon at 15-95‹ C. and a pressure of 100-800 p.s.i.g., withdrawing ammoniated magnesium chloride from the first reaction zone, subjecting the ammoniated product in a second reaction zone to a temperature of 270-550‹ C. and a pressure of 0À1-30 atmospheres, and separating the magnesium chloride from the ammonia. The ammonia withdrawn from the second reaction zone may be recirculated to the first reaction zone. Ammonia, water and liquid hydrocarbon withdrawn from the first reaction zone may be separated, and the ammonia and hydrocarbon recirculated to the first reaction zone. An ammonium salt, e.g. ammonium chloride, may be supplied to the first reaction zone, withdrawn with the ammonia, water and hydrocarbon, separated, and recirculated. The process is exemplified by the treatment of MgCl 2 .6H 2 O which is obtained in concentrated form from its ores or brines by evaporation and crystallization and then partially dehydrated to about 2-4 molecules of water in a kiln or fluidized bed before being treated according to the invention.
Patent GB-235155-A (GB)
IPC: G01L19/08
Filed: 1925-04-21
Abstract: 235,155. Eckardt Akt.-Ges., J. C. June 3, 1924, [Convention date]. Bourdon pressure gauges; indicating means for; applications of.-The gauge is connected to a compressed gas container and is provided with a fixed scale g indicating the pressure within the container, and with a movable scale f reading in the opposite direction from the fixed scale, the zero of the scale f being placed on the actual position of the pointer d and along which the pointer moves when gas is being withdrawn the quantity withdrawn being indicated by the pointer on the scale f. The movable scale is carried by one or more arms fixed to a milled button at the back of the gauge.
Patent GB-503653-A (GB)
Title: Installation comprising a fuel injection pump and liquid-pressure responsive injection timing device for internal combustion engines
IPC: F02D1/00
Filed: 1938-04-05
Abstract: 503,653. Timing - devices for fuel - injection pumps; fluid-pressure servomotor-control systems. SCINTILLA, Ltd. April 5, 1938, No. 10403. Convention date, April 5, 1937. [Class 102 (i)] [Also in Groups XXIV and XXIX] A shaft 9 drives the shaft 3 of a fuel-injection pump through a coupling comprising a member 12 secured to a piston 11 and having splines 13 engaging the shaft 3 and helical splines 12 engaging the sleeve 8 secured to the. cylinder 7 connected to the shaft 9. A gear pump 20, 21 is mounted on the shaft 3 and has an adjustable byepass and the delivery pipe 30 is connected to the chamber 10 through a bore 31 in the shaft 3. A pipe 37 passing through ball sockets 38, 40 connects the shaft 3 and the piston 11. Telescoping members 32, 35 bear against the casing 19 and the shaft 3. Specification 500,724, [Group XXVII], is referred to.
Patent GB-350114-A (GB)
Title: Improvements in epicyclic gears
IPC: F16H57/10
Filed: 1930-04-02
Abstract: 350,114. Variable-speed epicyclic gearing. ROYCE, SIR F. H., Nightingale Road, Derby. April 2. 1930, No. 10431. [Class 80 (ii).] In epicyclic speed gearing, one member, such as the annulus c, is stopped when required by engaging lugs #<4>, f<5> on levers #, #<1> with teeth c<1> on the annulus rim. The levers #, #<1> are pivoted on levers e, e<1> pivoted at their ends e<2>, e<3> in the frame and interconnected by a lost-motion connection e<4>, e<6>. The levers #, #<1> are actuated to move in opposite directions by a rod g<7> turning a lever g<1> pivoted on the lever f<1> and linked by a rod g<4> to a second lever pivoted on the lever f and connected by a link g<5> to the frame. Excessive pressure by the annulus in the circumferential direction on one lever f or #<1> effects a compensating movement of the other. Spring means arranged in a casing i supports the lever e &c. upon the frame and tends to maintain the parts in central position.
Patent GB-1213605-A (GB)
Title: Improvements in or relating to a rotary duplicator for printing a predeterminable number of lines from stencils
Inventor: RITZERFELD GERHARD
IPC: B41L19/04
Filed: 1969-02-27
Abstract: 1,213,605. Rotary duplicators. G. RITZERFELD. 27 Feb., 1969 [29 Feb., 1968], No. 10454/69. Heading B6C. In a duplicating machine for selectively printing one, two or three lines from a stencil master the entire control is mechanical, control cams actuating a follower for predetermined tripping of the impression cylinder and cam members being actuated by a push rod to actuate a stepping mechanism by which the control cams are moved relative to the common axle on which they are mounted. By such means duplicated copies bearing single line images, all different, may be produced or by twisting a rod into respective first and second positions, two and three line imaged copy sheets, all different, may issue.
Patent GB-941688-A (GB)
Title: New pharmaceutical compositions comprising a camphor derivative
IPC: A61K31/00
Filed: 1962-03-19
Abstract: Pharmaceutical compositions having analeptic cardiac and respiratory activity for topical, rectal and parenteral administration comprise a carrier and D(-)-a -fluoro-camphor having the structural formula <FORM:0941688/A5-A6/1> Specified forms are injections in organic liquid media, suppositories, lotions and ointments.
Patent GB-1213531-A (GB)
Title: Continuous slip clutch winch
Inventor: PETERSON EARL AUGUST
IPC: B66D1/14
Filed: 1968-03-05
Abstract: 1,213,531. Friction clutches. E. A. PETERSON. 5 March, 1968, No. 10535/68. Heading F2C. [Also in Division B8] A winch comprises a cable drum 4 fast on a shaft 1, a gear-wheel 6 driven at constant speed by a pinion 8 and freely journalled on said shaft, and an operator-controlled, fluid (e.g. air) pressure actuated, friction clutch 10 which provides a variable, continuously slipping, connection between the gear 6 and the shaft 1 and is continuously cooled by cooling fluid (e.g. water). The clutch comprises friction plates 16 pressed into engagement with a driven disc 17 by expansion of a tube 18 which is pressurized through a line 19, a stationary sleeve 11, a rotating distributer 12, lines 21 and connections 22. Cooling fluid is conducted to clutch passages 27, via an inlet pipe 23, the sleeve 11, and rotating pipes 24, 26, the fluid leaving the clutch via pipes 25.
Patent GB-178455-A (GB)
Title: Improvements in or relating to methods and apparatus for cooling gases
IPC: F28D5/02
Filed: 1922-04-12
Abstract: 178,455. Soc. L'Air Liquide, Soc. Anon, pour L'Etude et l'Exploitation des ProcÚdÚs G. Claude. April 15, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Cooling gases by evaporation of cooling liquids.-Gases are cooled by passing them through tubes over which a film of liquid flows, the tubes being positioned in a current of air or gas to cause evaporation of the liquid, to produce a cooling effect. Two forms of apparatus are described. As shown in Fig. 1, gas to be cooled passes from a chamber B<1> to a chamber B through the pipes A, over which a film of liquid is caused to flow from plates D, the liquid evaporating into an atmosphere which is renewed by circulation from the inlet pipe E to the outlet F. As shown in Fig. 2 the gas to be cooled traverses coiled tubes from the inlet M to the outlet N, such tubes being surrounded by absorbent material J over which liquid from a tank L flows, the liquid evaporating into the renewable atmosphere in the annular space K. The use of the apparatus is described for the cooling of compressed air which is to be liquefied, such air being admitted to the tubes A at M. The ceding is effected by the dry gases resulting from the liquefaction which enter at E, the gases themselves absorbing moisture from the falling water and issuing from the outlet F saturated with water vapour and substantially at room temperature.
Patent GB-112416-A (GB)
Title: Improvements in Calculating Apparatus.
Inventor: NICOLE PAUL
IPC: G06G1/00
Filed: 1917-07-23
Abstract: 112,416. Nicole, P. Dec. 30, 1916, [Convention date]. Proportional calculators.-The instrument is constructed to divide numerical quantities represented by lengths so that the square of one part is equal to the product of the whole length and the other part. The base AB is twice the length of the side BD and a point C is found on the base by making DB<1> on the hypoteneuse equal to BD and then making AC equal to AB<1>. A scale is movable parallel to the base in a guide along the line CD and the side BD is divided to represent lengths of the base to half scale. The zero on the parallel scale is on the line CD and the lengths of the parts into which the given length is to be divided are read on the intersection with the lines DB, DA.
Patent GB-1494779-A (GB)
Title: Electromagnetic operating circuit for cameras
IPC: G03B7/26
Filed: 1975-03-13
Abstract: 1494779 Capacitor discharge systems FUJI PHOTO FILM CO Ltd and KONDO 13 March 1975 [16 March 1974] 10587/75 Heading H2H [Also in Division G2] An electromagnetic operating circuit for cameras comprises switches 15a, 15b which are simultaneously closed to enable parallel connected capacitors 18a, 18b to discharge through coils 14a, 14b; a photoelectric delay circuit 11- 13 delaying discharge through coil 14a. Diodes 16a, 16b isolate the capacitors. As shown, on operating a camera release, switches 15a, 15b are closed. After a delay determined by an RC circuit 19, 20 to ensure that the diaphragm is set and reflex mirror is up, capacitor 18b discharges through coil 14b to open the shutter. Then after a delay determined by circuit 11-13, capacitor 18a discharges through coil 14a to close the shutter. In Fig. 2 (not shown), a third coil (24c) and capacitor (28a) are provided to operate the mirror and diaphragm. In Fig. 3 (not shown), a photovoltaic element (31) replaces the photoconductor 12. In Fig. 4 (not shown), thyristors are used for switching.