baber/WOPTO huggingface dataset:
Patent GB-715820-A (GB)
Title: Improvements in or relating to typographical slug casting machines
IPC: B41B11/88
Filed: 1951-08-28
Abstract: 715,820. Type-bar-making machines. MERGENTHALER LINOTYPE CO. Aug. 28, 1951 [Sept. 2, 1950], No. 20254/51. Class 100 (3) Metal pumps.-In a typographical slug casting machine of the kind known under the Registered Trade Mark "Linotype"; there is incorporated in combination a stop for preventing operative movement of the pump plunger, release means controlled by one of the vice jaws, which is outwardly yieldable, and the melting pot or mould, for moving the stop to an inoperative position when the yieldable jaw is moved outwardly and the melting pot and mould are also in their fullyforward casting position, and a control device operated by the justification mechanism on excess upward movement of the justification bar during justification for preventing operation of the stop release means so as to maintain the pump stop operative. The pump-stop 17 is released by the energization of a solenoid 18 when three switches, in series in a 28 volt A.C. circuit, are all closed. Switch 29 is normally open, and is closed by lever 27 when the pressure of a fully expanded line 1 is exerted on the right-hand vice jaw 2a. Switch 19 is normally open, and is closed by screw-head 21 when the melting pot 11 is moved to correct casting position against the mould 10, when the latter is necessarily correctly positioned against the assembled line 1. A third switch, normally closed (not shown) is opened when one of the two cam-controlled spring-operated levers which operate the vertical justification rods to elevate the horizontal justification bar undergoes an excessive upward movement due to a line being too far short of the casting range or containing too few spacebands. The pump can thus operate only if the line is properly expanded, the melting pot is correctly in contact with the mould, and the mould in contact with the line. Specification 553,033 is referred to.
Patent GB-701712-A (GB)
Title: Mono adducts of polyisocyanates and mercaptans
Filed: 1951-08-29
Abstract: Mono (thiourethane) substituted organic isocyanates obtained by the reaction of approximately equal molecular proportions of a polyisocyanate and a mercaptan, the thiol group of the mercaptan being the only group in either reactant possessing a reactive hydrogen atom, are used as cross-linking agents in diisocyanate-modified polyesters and polyesteramides.  Specified adducts are those resulting from the reaction of 4:41-diphenyl diisocyanate, 1-methyl-2:4-phenylene diisocyanate, 1:5- naphthalene diisocyanate and hexamethylene diisocyanate with 2-mercaptobenzothiazole.  Many other mercaptans and polyisocyanates are specified (see Group IV (b)).ALSO:The invention comprises mono (thio-urethan) substituted organic isocyanates <FORM:0701712/IV(b)/1> where R is an organic radical and R1 is an organic radical containing at least one -NCO group and their preparation by reacting approximately equimolecular amounts of an organic polyisocyanate and a mercaptan, the thiol group of the mercaptan being the only group on either reactant which possesses a reactive hydrogen atom.  Specified polyisocyanates include aliphatic diisocyanates such as hexamethylene diisocyanate, aromatic polyisocyanates such as 4:41-diphenyl, 1-methyl-2:4-phenylene and 1:5-naphthalene diisocyanates. Specified mercaptans include alkyl and aryl mercaptans and mercaptans containing a thiazole ring such as 2-mercaptobenzothiazole. Preferably the reaction is carried out by dissolving the mercaptan and an excess of the polyisocyanate in an inert solvent and allowing to stand.  An example describes the preparation of the mono adduct of 2-mercaptobenzothiazole and 4:41-diphenyl diisocyanate.
Patent GB-375098-A (GB)
Title: Improvements in or relating to lanterns burning fuel vaporized under pressure
IPC: F23D99/00
Filed: 1931-07-16
Abstract: 375,098. Vaporized fuel lanterns. ALADDIN INDUSTRIES, Ltd., Aladdin Building, Greenford, Middlesex.-(Assignees of Engh, W. B. ; 848, Laramie Avenue, Chicago, and Davis, C. W. ; 315, Lincoln Avenue, Alexandria, Indiana, both in U.S.A.) July 16, 1931, No. 20450. Convention date, March 9. [Class 75 (iv).] A lantern, in which a mantle is heated by liquid fuel vaporized under pressure, is provided with a detachable hood which carries a central burner, a mixing tube extending between the burner and the outer part of the hood, into which projects a vaporizer. The hood comprises an annular member 2 and an annulus 12 which enclose an annular chamber 31 and a cylinder 13 with perforations 26 for the escape of combustion gases, together with an auxiliary hood 27. A flange 6 on the hood is clamped to a flange 7 on the body of the lantern by pivoted U-shaped clips 9. The annulus 12 has arms 3 inwardly extending to a hub 4 carrying the burner 1. The burner 1, which comprises inner and outer tubes 17, 22, is supported by the engagement of flanges 16, 23 with inturned flanges 15 on the hub. A nipple 18, held in the hub by a bead 20 and a flange 21, receives the discharge end of the mixing tube 5. In line with the mixing tube 5, the annulus 12 is provided with a short tube 30 through which the nipple 28 of the vaporizing tube has to pass before the hood can be fastened. Air for combustion enters the chamber 31 through perforations in the member 2. Specification 375,601 is referred to.
Patent GB-1474821-A (GB)
Title: Gear fluid machine
IPC: F01C1/08
Filed: 1975-05-14
Abstract: 1474821 Rotary positive-displacement fluidmachines ROBERT BOSCH GmbH 14 May 1975 [29 May 1974] 20450/75 Heading F1F In a gear pump, or motor, bearing bushes 15, 16, 22, 23 have slots 30 ÀÀ 33 formed therein near to the ends abutting the gears 21 on the low-pressure sides thereof so as to render the portions of the bushes between the slots and said ends flexible in order to minimize wear due to thermal distortion. Each of the slots is at an acute angle α relative to the respective bush end, said angle being between 5 degrees and 20 degrees. The bases of the slots may be arcuate, as shown in Fig. I, or straight, Fig. 3b. To increase the flexibility of the aforemention portions a recess 15" may be formed in the end of each bush adjacent the respective gear.
Patent GB-335293-A (GB)
Title: Improvements in insulators for electrical apparatus
IPC: H01B17/26
Filed: 1929-07-04
Abstract: 335,293. Hailwood, E. A. July 4, 1929. Lighting burners by electric devices.-A device for lighting miners' safety lamps underground comprises a current-carrying metal rod R formed at one end with a lamp contact R<1> which is pressed up by a spring S. The rod R is fitted in a central aperture in an insulating member G which is preferably of glass, the contact R<1> fitting in a recessed hole G<2> in the head G<1> of the member G. To limit upward movement of the rod R, a split ring P passes through the lower end of the rod and engages the sides of a gap G<3> in the insulator G. Nuts N provided on the rod R for receiving a lead from an induction coil, or contacts are provided to close an electrical circuit on depression of the rod by a lamp fitted on the contact R<1>. Arms C' of a spring clip C grip recesses G<4> in the insulator, springs C<2> on the clip C engaging the wall T on which the lamp seating D rests. Specification 1979/08 isreferred to.
Patent GB-518511-A (GB)
Title: Improvements in retractable landing gear for aircraft
IPC: B64C25/40
Filed: 1938-08-24
Abstract: 518,511. Aircraft landing-gear. Air-equipment. Aug. 24, 1938, No. 20512/39. Convention date, Dec. 7, 1937. Divided out of 518,414 under which a Specification was laid open to inspection under Sect. 91 of the Acts, March' 11, 1939. [Class 4] To minimize wear on landing wheel tyres, the tyre is caused to roll on a surface 1 as the undercarriage is lowered in order to set it in rotation in the appropriate direction before the aircraft alights. Alternatively, or in addition, blades 7 may be formed on the wheel rim so that the wheel is driven round by the relative wind
Patent GB-701495-A (GB)
Title: Improvements in folding supports for portable typewriters
IPC: B41J29/06
Filed: 1952-08-15
Abstract: 701,495. Typewriter stands. LANDOLFI. T. Aug. 15, 1952, No. 20551/52. Class 52(3) A folding support for a portable typewriter comprises telescopic legs 9 pivoted to the base 1 of the typewriter or a board :secured thereto for limited rotation about a pin 19 at right angles to the base and about an axis 14 parallel to the base. The casing of the typewriter has its underside closed by a detachable cover 4 enclosing the legs when folded. The legs are hinged to the base 1 so as to fold upon it when collapsed and to take up a splayed position when erected. The cover 4 has side flanges 3 slidably engaging rails 2 on the sides of the base 1. A U-shaped slidable member 10 may be pulled out of the base to support the cover 4 at the side of the typewriter as shown in Fig. 3 for holding papers, &c. The legs 9 are held in extended position by a spring-pressed button 18 on one telescoping part engaging a hole in the other part.
Patent GB-1100414-A (GB)
Title: Treatment of plastics surfaces with an electrical discharge to improve their bonding properties
IPC: B26F1/28
Filed: 1964-05-19
Abstract: 1,100,414. Printing processes. IMPERIAL CHEMICAL INDUSTRIES Ltd. (Canadian Industries Ltd.) 6 May, 1965 [19 May, 1964], No. 20584/64. Heading B6C. [Also in Division H1] A web of polythene &c. or a plastics article such as a bottle is treated to render its surface more receptive to printing ink by subjecting it to an elongated electrical discharge between two electrically conducting electrodes such as 2, 3, the discharge traversing a gaseous medium only and the surface to be treated entering and leaving the discharge on the same side thereof. The plastics material to be treated may alternatively be polyethylene terephthalate or a polyolefine. The discharge is preferably of the corona type and may be accompanied by sparking, the discharge being caused by either direct or alternating current. A potential between 20-60 thousand volts and a frequency between 60-3,000 c.p.s. may be employed. The web 1, Fig. 4, may be treated by four pairs of electrodes as shown, one electrode of each pair being connected to a high tension source 13 via a resistor such as 6, and the web being arranged over insulating guide rollers 10, 10<SP>1</SP> and 4, 4<SP>1</SP>. The electrodes are preferably in the form of knife edges, brushes or combs, and one electrode may be a heated wire. A web moving in a linear path, Fig. 1 (not shown), may be similarly treated.
Patent GB-1174826-A (GB)
Title: Socket for Capless Electric Bulbs
Inventor: MINCUZZI ANTONIO
IPC: H01R33/09
Filed: 1967-05-03
Abstract: 1,174,826. Lamp holders; printed circuit board surface connectors. SOC. PER AZIONI FRATELLI BORLETTI. 3 May, 1967 [6 May, 1966], No. 20624/67. Heading H2E. A holder for a capless lamp comprises two U-shaped contact springs 10 with inwardlycurved portions 15, 15<SP>1</SP> for gripping the lamp base, one arm of each contact having an extension 9 for connection to a supply conductor. The contacts are retained in an insulating body 1 by engagement of their inwardly-curved portions 15 and lances 16 with projections 12 and shoulders 17 on the body. Opposed lugs (3, Fig. 1b not shown) located forwardly of an annular flange 5 enable the body 1 to be panelmounted in bayonet manner. The panel may carry printed circuitry for engagement by the contact parts 9.
Patent GB-1004557-A (GB)
Title: Sealing expansion grooves in concrete structures
Inventor: CRONE ALFRED FORBES
IPC: E01C23/09
Filed: 1964-05-19
Abstract: 1,004,557. Waterstops. ACME HIGHWAY PRODUCTS CORPORATION. May 19, 1964, No. 20676/64. Heading E1G. A sealing strip between two masses 10, 11 of concrete or the like has flat sides 16, 17 in contact with the concrete and longitudinal air passages. The strip is formed from elastomonic material and has diagonal webs 24, 25 integral with the sides and an upper surface 19, 20 providing a depression 38. Adhesive, 28, is applied to the walls of the gap 12 to act as a lubricant and to receive the strip which is forced into position by a roller having a rib engaging with the depression-38. Alternatively the strip may be inserted by a rib 42 attached to a curved plate 40 on which the operator stands as the plate is rocked by a handle 41.
Patent GB-981440-A (GB)
Title: Improvements in or relating to gear change mechanisms
IPC: B62M25/00
Filed: 1962-05-29
Abstract: 981,440. Cycle twist grips. ZAVODY 9. KVETNA, NARODNI PODNIK. May 29, 1962 [May 30, 1961], No. 20691/62. Heading B7E. A handle bar 1 mounts a twist grip body 2 having a base 3 pivotally mounting a clutch control lever 5, and a roller 8 rotatably mounted on the handlebar and connected by cables 21 to a gear-changing mechanism 22, 23 is provided with entraining slots 13 adapted to be engaged by two spring catches 6, 7 in the base 3 which pass through a disc 10. The disc has a tongue 14 which penetrates into the fixed bar 1, and mounts a plug 15 on which is supported a return spring 16. One end of the spring bears against a protuberance 17 on the disc, and the other end bears against a stop on the grip 2. Also on the disc is a protuberance 18 having a slot 19 engaging a part 20 of the clutch lever so that the grip and clutch lever which move together cannot be rotated until the clutch lever has been depressed and the clutch disengaged. In operation the grip 2 is held in its intermediate position O by the spring 16 until the clutch lever 5 has been depressed. When the grip is turned to one of its extreme positions X or Y, one of the catches 6 or 7 always projects through one of the cut-outs 11 or 12 in the disc 10 and engages a slot 13 in the roller 8 so that the roller may be turned angularly by the length of the respective cut-out, thus pulling on a cable 21 and operating the gear change lever 23 which is held in the changed position by arresting means (not shown). When the twist grip is released it returns to position O, the catches 6, 7 ride back over the disc 10 and leave the roller 8 and gear lever 23 in position so that further gear changes to positions I-IV, Fig. 2, may take place by further twists of the grip.
Patent GB-1168937-A (GB)
Title: Torque Measuring Mechanism
IPC: B25B23/145
Filed: 1968-05-01
Abstract: 1,168,937. Power wrenches. INGERSOLL-RAND CO. 1 May. 1968 [2 May, 19671. No. 20706/68 Heading B3N. [Also in Division G1] In torque indicating or control mechanism, a torque load on a driven member is sensed by means operating a valve arranged to vary the flow of fluid in a pipe in a fluid signalling or control system and when the load rises to a predetermined value, the valve throttles the flow to cause the system to create an indicating and/or control signal. Applied to a nut-runner, a wrench socket 7 is detachably carried by a spindle 6 driven from the shaft 5 of an air-operated motor 4 through a drive pin 16, and a hollow shaft 15, splined to drive a shaft 20 connected to the socket 7 by a torsion bar spring 22, whose square ends fit mating holes. A spindle tube 26 is pinned to the lower end of the bar 22 and at its upper end is splined in a sliding valve ring 29 urged upward by a light spring 31 to hold cams 33, 34 on the shaft 15 and ring 29 in contact. Any torque load on the socket 27 produces a proportional twist of the bar 22 and consequent angular displacement between the ring 29 and shaft 15 and, due to the engagement of the cams 33, 34, a proportional axial displacement of the valve ring 29 towards a port 40 through which a continuous flow of air is vented from a pipe 41 arranged in a fluidic control circuit Fig. 5, which includes a valve 50 controlling the air supply to the motor 4. A pressure gauge 42 indicates the measured torque. The port 40 is formed in a cap 36 which can be adjusted so that at a predetermined torque load the valve ring 29 reduces the air gap 85 at the port 40 to cause a pressure impulse to flow through line 79 to a flip-flop circuit 64. This results in an increased pressure in line 67 so that actuator 69 moves slide valve 70 to disconnect air source 72 from actuator 54 for valve 50 and connects an indicator 74 signifying the end of the nutturning operation as valve 50 stops the motor. An alternative embodiment is described with reference to Fig. 6 (not shown).
Patent GB-792448-A (GB)
Title: Improvements in or relating to a combined tooth brush and dentifrice dispenser
IPC: A46B11/00
Filed: 1954-07-15
Abstract: 792,448. Reservoir tooth brushes. EDWARDS, G. S. July 12, 1955 [July 15, 1954], No. 20725/54. Class 19. A combined dentifrice dispenser and toothbrush comprises a tubular handle A for receiving as a close fit a tube, Fig. 4, of dentifrice, a tubular extension J removably attached to the handle and provided at its outer end with an eccentrically disposed socket for receiving a screw-threaded part of a brush head K which is movable between a position of use where the bristles face outwards and an inner position (as shown) in line with the tubular extension, and a brush head cover, Fig. 3 (not shown) for connecting to the handle extension, the tubular handle being fitted internally with a movable plunger G which upon rotation of a knob C at the outer end of the handle progressively expels the dentifrice through a passage leading to the bristles. As shown the plunger G is supported on a screw threaded rod attached to the knob C and passing through the middle of the dentifrice tube, the plunger carrying a nut which engages the screw thread and also carrying spring members H which engage the inside of the dentifrice tube to prevent the plunger rotating.
Patent GB-1007362-A (GB)
Title: Improvements in or relating to animal kennels, hutches, beds, pens and other enclosures
IPC: A01K1/035
Filed: 1963-05-24
Abstract: 1,007,362. Animal beds, pens, kennels. S. B. EVANS. May 20, 1964 [May 24, 1963], No. 20743/63. Heading A1M. An animal kennel, hutch, bed or pen comprises a system of heating, cooling or air conditioning the operation of which is controlled by the presence of the animal within the kennel &c. As shown a kennel 1 is provided with a movable floor 2 which is displaced by the animal to operate a switch 5 which turn on an electric heater 6. When the animal leaves the kennel, the floor 2 is returned by springs 4 thereby releasing switch 5 and turning off the heater. In a modification only part of the floor is displaceable. In a further embodiment an animal bed comprises flexible material, e.g. canvas, stretched between supports and arranged so that one edge is fixed to the bed frame while the opposite edge is fixed to a bar attached to the frame by springs or other means allowing displacement of the canvas whereby the control switch it actuated. Alternatively the bed comprises an air-cushion provided with a pneumatically operated switch actuated by the increased pressure when the animal steps on to the cushion. Both a heating and a cooling apparatus may be provided and the apparatus may be controlled by a photo-electric cell.
Patent GB-763149-A (GB)
Title: Impedance matching devices for wave-guide junctions
IPC: H01P5/20
Filed: 1954-07-16
Abstract: 763,149. Impedance matching. WESTERN ELECTRIC CO., Inc. July 16, 1954 [July 20, 1953], No. 20801/54. Class 40 (8). An impedance matching device for a " Magic- T " comprises, in the modification shown in Fig. 1, a brass or copper plate 20 having a post 22. The device is soldered in position with the aid of an iron or aluminium jig (see Fig. 3, not shown) which is later removed. In a further modification, Fig. 6, the device may comprise a bent plate 56, 50 having an extension 52. In another modification, Fig. 8, a bent plate provides parts 72, 74 and parts 76, 78 for retaining the device in position. Similar modifications are shown in Figs. 9 to 12 (not shown). The devices may be made in separable parts, and may be soldered, brazed, crimped, pinned or screwed in position.
Patent GB-895577-A (GB)
Title: Improvements in or relating to gas filled electric discharge tubes
Inventor: JENKINS RONALD OSMOND
IPC: H01T4/12
Filed: 1958-06-30
Abstract: 895,577. Spark apparatus. GENERAL ELECTRIC CO. Ltd. May 28, 1959 [June 30, 1958], No. 20864/58. Class 39(1). A corona voltage stabilizing tube has a tubular chrome iron cathode 2, a coaxial wire anode 3 of similar material and a source 16 of thorium oxide emitting α-particles into the discharge space of the tube. The tube is filled with hydrogen at a pressure of 8 cm. of mercury.
Patent GB-583433-A (GB)
Title: Improvements in prepayment mechanism for gas and like meters
IPC: G07F15/00
Filed: 1944-10-26
Abstract: 583,433. Prepayment mechanism for meters. METERS, Ltd., and MAHER, D. Oct. 26, 1944, No. 20878. [Class 27] Indicators. - The credit indicator disc c of a prepayment meter has a slot c' therein which, when the maximum permissible prepayment has been made, comes over the end f<1> of a pivoted stop lever f. The lever then rocks so that its opposite end f<2> obstructs movement of the rotary coin pocket a in a direction to effect prepayment. Movement of the pocket in the reverse direction to the coin receiving position is, however, possible.
Patent GB-1083675-A (GB)
Title: Improvements in or relating to air cushion borne vehicles
Inventor: EGGINGTON WILFRED JAMES
IPC: B60V1/16
Filed: 1963-05-24
Abstract: 1,083,675. Air cushion vehicles. BRITISH HOVERCRAFT CORPORATION Ltd. May 22, 1964 [May 24, 1963], No. 20950/63. Heading B7K. The vehicle 1 comprises a duet 2 and a skirt 4 which is attached to the underside of the vehicle by spaced flexible webs 8. A further skirt member 5 may be provided to form with skirt 4 a nozzle 9 from which a curtain 11 issues, and the member 5 may be spaced from the underside of the vehicle to form an aperture 7 through which the cushion 10 is pressurized.
Patent GB-1391121-A (GB)
Title: Apparatus for investigating phase transformations and reactions  in substances under quasi-isothermal conditions
IPC: G01N25/48
Filed: 1972-05-05
Abstract: 1391121 Differential thermal analysis MAGYAR OPTIKAI MUVEK 5 May 1972 [17 Aug 1971] 21003/72 Heading G1N [Also in Division G3] In an apparatus for the investigation of phase transformations and reactions of a material by differential thermal analysis, a material sample 1, Fig. 2 is placed in crucible 2 within an electric furnace 15, while an inert reference material 3 which does not suffer chemical or physical changes when heated, is placed in a crucible 4. The temperatures of the sample and reference materials are sensed by thermocouples 6, 5 respectively connected in series opposition in a bridge. A mirror galvanometer 9 is deflected by an amount depending upon the difference in temperatures sensed and activates either a photo-cell 11 or 12 by reflecting light from a light source 10 depending upon which material has the higher temperature. This causes a switching device 13 and a programme regulator 14 to control the heating current of the furnace accordingly. Thereby the temperature of the sample can be rapidly increased as long as no change takes place in the sample such as phase transformation or reaction in its crystal structure, in which event quasi-isothermal conditions are ensured by the control arrangement. The temperature of the sample 1 is measured by a galvonometer 8 and recorded on a photosensitive strip 17. When a phase transformation occurs (point b in curve TA) the temperature of the sample stops increasing and remains steady until point c, and a finite differential temperature obtains which is used as described above to control the furnace. The apparatus thus controls the rate of phase transformation, and this rate may be reduced to a minimum so that phase transformations occur at practically isothermal and thus equilibrium conditions.