baber/WOPTO huggingface dataset:
Patent GB-834339-A (GB)
Title: Improvements in or relating to motor vehicle braking mechanisms
Inventor: HASTINGS ROBERT MCCLEMENT
IPC: B60T17/10
Filed: 1957-08-20
Abstract: 834,339. Diaphragm pistons. HOPPENSTAND MOTORS Inc. Aug. 20, 1957, No. 26272/57. Class 122 (1). [Also in Group XXXIV] The piston of a brake actuating, fluidoperated motor 13 (Group XXXIV) comprises a diaphragm 31 having inner and outer portions 36, 37 and clamped between two dished housings 28, 29, and a diaphragm 34 and housing 35 carried by the diaphragm 31. A piston-rod 39 is attached to a circular plate 40 held against diaphragm 34 by a spring 41 between it and housing 35 which is held in the shown position by a spring 42. Fluid under pressure from a reservoir, is supplied via pipe 11 to between diaphragms 31, 34 to move the rod 39 against spring 41 to operate the brakes, Fig. 3, not shown, the pipe 11 passing through housing 29 and connecting with a port in a ring 32 separating diaphragms 31, 34. Should movement of rod 39 be insufficient for brake application, then fluid is supplied from an auxiliary reservoir through pipe 24 to the chamber between diaphragm 31 and housing 28, diaphragm 31 moving with diaphragm 34 and housing 35 to compress spring 42 and move rod 39. The diaphragm 31 may be of one piece or of two portions 36, 37. A simplified piston in Fig. 5, not shown, dispenses with spring 42 and housing 35.
Patent GB-804909-A (GB)
Title: Improvements relating to apparatus for converting cartesian components of displacement into polar components representing speed and course
Inventor: LEMAY CHRISTOPHER ARCHIBALD GO
IPC: G06G7/22
Filed: 1953-09-24
Abstract: 804,909. Electric analogue calculating systems. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Sept. 24, 1954 [Sept. 24, 1953], No. 26279/53. Class 37. A.C. voltages corresponding to Cartesian components of the rate of change of displacements, for example in a radar target tracking system, are converted to servomotor shaft rotations, the magnitudes of which correspond to the polar co-ordinates of speed and course. Feedback is effected by converting the polar coordinate output back to Cartesian component voltages which are applied to the Cartesian signal generating device. The input to the servomotor system is the difference between the feedback signal and the Cartesian component voltages. As shown, the Cartesian components of the displacement rate of change are developed at 1 and 4, as described in Specifications 740,071, 804,905, 804,906, 804,908 and are applied simultaneously to the servomotors 9, 12 through the resolver 3. The angular movements of 9 and 12 represent respectively the target angular position and velocity. The feedback to 1 and 4 is derived from resolver 16 the rotor 15, 17 of which is mounted on the shaft of 9 and is energized from potentiometer 13 in accordance with the rotation of 12. Motor 9 assumes a null position due to the auxiliary feedback loop consisting of rotor coil 6, amplifier 10 and shaft 8.
Patent GB-653786-A (GB)
Title: Improvements in or relating to furnace fronts for furnaces, boilers, stoves or the like
IPC: F23D11/00
Filed: 1948-10-08
Abstract: 653,786. Liquid fuel burners. BROWN, T. T., and SWINNEY BROS., Ltd. Oct. 8, 1948, No. 26282. [Class 75(i)] [Also in Group XII] The cylindrical body 1, Fig. 1, of a furnace front has a circular row of uniformly spaced ports 2 controlled by a rotary ported damper 4 and is associated with an air director 15 in which terminates a burner tube 30 of which the end is surrounded by an outwardly flaring truncated cone 37 in which is located a coaxial oppositely convergent truncated cone 39. Inclined vanes 38 are provided on the outside of the cone 37, and inclined vanes 40 are provided on the inside of both cones or on the inside of the cone 39 only. Air passing through holes or slots 41 on opposite sides of the annular zone of connection between the two cones 37, 39 is directed by the vanes 38, 40 to produce a swirling flow which reduces deposition of carbon or soot on the burner parts in the flame zone. The cones 37, 39 are slidably mounted on a tube 29, surrounding the burner tube 30, and are adjustable by a pair of rods (not shown), operated by handles outside the body 1. The tube 29 is provided with a circumferential row of air ports 31 controlled by a sliding cylindrical shutter 32 operated by a rod 33 passing through plates 23, 27. The plate 27 is secured to the end of the tube 29 and is bolted to the plate 23, which closes an opening 19 in and is bolted to a plate 16 hinged and bolted to a flange 9 of the outer end of the body 1. The opening 19 is sufficiently large to permit the insertion or removal of the burner assembly therethrough. The plate 16 is provided with two other apertures 17", 18, closed by hinged doors 19<SP>1</SP>, 20, and provided with inspection and lighting holes 44, 45 normally closed by pivoted plates 46, 47. When forced draught is employed a casing 43 supplied with air under pressure is secured to the flange 9. When natural draught is employed the casing 43 is omitted and the doors 19<SP>1</SP>, 20 are maintained open. A modified construction is described for use in small furnaces, etc., in which the double cone structure is secured direct to the end plate of the furnace front, and the outer cone has an outwardly directed flange whilst the inner cone has an inwardly directed flange.
Patent GB-1348417-A (GB)
Title: Ink transfer member
IPC: B41M5/10
Filed: 1971-04-19
Abstract: 1348417 Ink transfer member BURROUGHS CORP 19 April 1971 [20 April 1970] 26293/71 Heading D2B An ink transfer member comprises a polyester film coated with a binder layer comprising a solvent-soluble linear polyester and a plastic ink-releasing layer on top of the binder layer. The ink-releasing layer may comprise a natural and/or synthetic resin, dye, pigment, and vehicle. Multi-colour ink-transfer members may be prepared by using contiguous plastic ink releasing layers of different colour on top of the binder layer (Fig. 2 not shown).
Patent GB-1133507-A (GB)
Title: A servo-assisted hydraulic power device
IPC: B60T13/24
Filed: 1966-06-14
Abstract: 1,133,507. Fluid pressure brakes; clutch control. ERNST HEINKEL A.G. 14 June, 1966 [23 July, 1965], No. 26369/66. Headings F2F and F2L. In a servo-assisted master cylinder arrangement for vehicle brakes or clutches, a servomotor of the vacuum -suspended type comprises a cylinder 7, 8, a servo piston unit formed by piston 14 and rolling diaphragm 16 defining two chambers A and B therein, the pressure and vacuum conditions of which chambers are controlled by a valve constituted by the centre portion 18 of the rolling diaphragm acting as an annular valve flap, and two concentric valve seats overlapped by said valve flap, the inner seat being formed by the upper edge 2c of a control piston 2, which is axially displaceable relative to the cylinder and piston unit, and the outer seat being formed by a ring 13 fixedly connected to the piston 14. In the release position shown, the annular flap valve portion 18 of the diaphragm seats on the upper control piston edge 2c to cut off both chambers A and B from atmosphere which exists above said diaphragm portion whilst allowing intercommunication between said chambers through the annular space between the control piston 2 and an intermediate piston component 12 and through the passage 24. In this position, chambers A and B are both evacuated through a connection 23 to an engine manifold. On initial braking, a ram 1 forces the control piston into the master cylinder piston 3 of master cylinder 4 to manually apply the brakes connected thereto, the piston and diaphragm 14, 16 moving against spring 15 deeper into the cylinder. Spring 12a is compressed and the annular centre portion of the diaphragm distorts under the action of spring 18a and atmospheric pressure until it contacts both seats 2c and 13 thereby shutting off communication between the two chambers. On further brake actuation, control piston seat 2c moves downwardly away from the diaphragm to allow atmospheric air to enter chamber A. The resultant pressure differential acting in the chambers causes further depression of the master cylinder piston 3 into its cylinder for servo-assisted brake application. A feeler piston 5 is contained within the master cylinder piston and has a polygonal stem 5a to permit the hydraulic fluid to act on the piston proper. Said feeler piston exerts a reaction pressure back on the driver via the control piston during brake application. By suitable choice of the ratio of areas of the piston 5 and master cylinder piston bore the magnitude of the feed back pressure can be varied for different installations. On exhaustion of the vacuum source, further manual operation may take place by movement of the control piston until it abuts a shoulder 20 associated with the piston unit 14, 16. The above arrangement is said to reduce the transition time between manual and power braking as compared to known arrangements, specific transition time periods being stated.
Patent GB-485266-A (GB)
Title: Process for the preparation of bisulphite addition compounds of etherified derivatives of pentahydroxy-fuchsone
IPC: C07C43/20
Filed: 1937-03-09
Abstract: Partly or completely etherified derivatives of hexahydroxytriphenylmethanes containing two hydroxy groups in each benzene nucleus are oxidized, and the resulting fuchsones converted into addition compounds with bisulphites.  The triphenylmethanes may be prepared by the customary reactions and the oxidation simultaneously effected.  Alkyl, halogen and sulpho groups may be present.  In examples: (1) 3 : 31 - 311-trimethoxy-4 : 41 : 411-trihydroxytriphenylmethane is treated with amylnitrite and the fuchsone isolated by treatment with absolute alcohol and dry hydrogen chloride; the resulting crystals are washed with sodium acetate solution and water and reacted with aqueous sodium bisulphite to obtain the sodium bisulphite compound of trimethoxydihydroxyfuchsone: trihydroxydimethoxyfuchsone and monomethoxy tetrahydroxyfuchsone may similarly be isolated in the form of their sodium bisulphite compounds; (2) the hydrochloride of 3 : 31-dimethoxy - 311 : 411 - methylenedioxy - 41-hydroxyfuchsone is obtained by oxidizing with amylnitrite the triphenylmethanehydrochloride obtained by condensing piperonal with guaiacol in the presence of hydrochloric acid; the fuchsone is finally treated with aqueous sodium or ammonium bisulphite; (3) 3 : 31 : 311-trimethoxy - 4 : 41 : 411-trihydroxy - 5 - bromtriphenyl methane, obtained from 5-bromvanillin and guaiacol, is oxidized in ethylacetate with amylnitrite and the resulting fuchsone converted into the bisulphite compound; (4) guaiacol is condensed with iodoform, the volatile products removed by distilling on a water bath and the residue dissolved in sodium carbonate; the product obtained by precipitating with acetic acid is extracted with sodium bisulphite solution, decomposed with hydrochloric acid and, after addition of sodium acetate extracted with ethylacetate; by saturating with dry hydrochloric acid, the hydrochloride of trimethoxydihydroxyfuchsone is obtained, which is converted into the bisulphite compound; (5) the calcium salt of m-trimethoxy-p-dihydroxyfuchsone-m-sulphonic acid is obtained either by oxidizing 3 : 31 : 311-trimethoxy-4 : 41 : 411-trihydroxytriphenylmethane-5-sulphonic acid (prepared from guaiacol and 3-methoxy-4-hydroxybenzaldehyde-5-sulphonic acid) or directly by the interaction of amylnitrite, guaiacol and the calcium salt of 3-methoxy-4-hydroxybenzaldehyde-5-sulphonic acid.
Patent GB-1061213-A (GB)
Title: Multiple-stage evaporation process
IPC: D06L3/08
Filed: 1964-06-26
Abstract: 1,061,213. Separation of solvent from salt solutions. UNIVERSAL OIL PRODUCTS CO. June 26, 1964 [June 27, 1963], No. 26469/64. Heading B1B. [Also in Division F4] Volatile solvent is separated from a solution of a non-volatile salt by contacting the solution with a hot immiscible fluid in a series of evaporation zones 5, 23..48 each of which is maintained at a pressure below that in the preceding zone; the solvent vapours formed in each evaporation zone (except the last) are conducted through a line 14, 24 .. into an associated condensation zone 15, 25 .. where they are contacted with cool heat-exchange liquid which has been used as heating-medium in the succeeding evaporation zone. In zones 15, 25.. the vapours condense and give up heat to the heat exchange liquid and, after separation from condensate in a phase settler 19, 37.., the heat exchange liquid is then returned (after vaporization if necessary) to the evaporation zone from which it was withdrawn. If the heat transfer fluid is introduced into an evaporation zone as a vapour, it condenses to a liquid which separates as a separate layer from the feed solution residue. An example is given of a seven-stage process for the production of salt-free water from sea water using diphenylethane (or decafluorobiphenyl) as heat transfer liquid. The absolute pressure in the first evaporation zone is 8 atmospheres, while the last zone is at about atmospheric pressure. The process may also be employed to separate organic solvents such as acetone, ether, hexanol or benzene from solutions using a molten metal, or metal halide, as heat exchange liquid. The solution to be treated is introduced into the apparatus shown through line 1 and flows, via line 68, through heat exchangers 66 and 54 where it is preheated by the heat-transfer liquid, withdrawn from settler 60, and by the concentrated solution withdrawn from settler 49, respectively. Alternatively, the feed solution is preheated by passing it through coil 75 in the condenser 59 of the last stage. The preheated solution flows through line 74 to the first evaporator 5 where the solution is contacted with heat exchange liquid which is continuously circulated through heater 12, evaporator 5, settler 7 and back to heater 12. Purified solvent is withdrawn from the system via lines 27, 38..61 on the condensate on settlers; and residual concentrated solution is discharged via a line 57 on heat-exchanger 54.
Patent GB-1072546-A (GB)
Title: Improvements relating to threshold logic circuits
IPC: H03K19/08
Filed: 1965-06-23
Abstract: 1,072,546. Logic circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 23, 1965 [June 25, 1964], No. 26485/65. Heading H3T. In logic circuits having a plurality of inputs feeding a sensing element such as a Zener diode in series with the base of a transistor to give an output when its input exceeds a threshold value, the effect of circuit tolerances is reduced by including unequal weighting impedances in the input leads and an asymmetrically conducting device in at least one input lead, thus avoiding the necessity for a separate bias supply and resistor. The principle is applicable to majority circuits and to complex Boolean functions. Thus the circuit of Fig. 8 with resistors having the reactive values shown will realise the function [A(B+C)+BCD] if the A6-D6 terminals are capable of assuming voltages of + V and - V. By expanding the D6 input to three inputs D6, E6, F6 (Fig. 9, not shown) applied through separate diodes the function becomes [A(B+C)+BCDEF]; if the B and C inputs are omitted this is simplified to the form (A+DEF)-Fig. 10 (not shown). The practicable number of inputs is limited only by leakage through the diodes and not by other component tolerances. Other ways of eliminating the bias supply and resistor are by shunting the A input resistor Ra13 by a diode and resistor in series (Fig. 13b, not shown), the resistor in this shunt path having a value half that of the other resistors, and by including AND inputs at the A terminals and OR inputs at the C terminals (Fig. 14b, not shown) with relative resistor values as shown, the latter giving a function [AMN(B+C+W+X)]. A combination of these two methods (Fig. 15b, not shown) realises the function
Patent GB-464866-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P1/50
Filed: 1935-09-25
Abstract: 464,866. Control of A.C. motors ; electricity supply. BRITISH THOMSONHOUSTON CO., Ltd. Sept. 25, 1935, No. 26559. Convention date, Sept. 27, 1934. [Class 38 (iii)] [Also in Group XXXV] A control relay 15 with voltage and current coils 17, 16, energized in accordance with the phase relation between the supply circuit voltage and the armature current of a synchronous motor 1, and also in accordance with the frequency of armature current pulsations when the motor is operating out of synchronism, effects the connection of the motor field 3 to an excitation source 10 when the motor speed increases above a predetermined value Upon operation of a switch 7, a self-maintaining contactor 5 closes to connect the motor armature 2 to the supply, the field 3 being connected across resistance 13 by the normally closed contacts of a field contactor 11. The current flowing to the motor is sufficiently large and lags the supply voltage sufficiently for the relay 15 to close its contacts 18. This effects energization of a relay 20 which closes its contacts after a time interval to maintain its own circuit, and prepare a circuit for the field contactor 11 which is completed when the relay 15 opens its contacts 18 and closes its contacts 19. This occurs when the motor current has a certain phase relation to the supply voltage, and the current pulsations in the armature circuit are at a frequency predetermined by a time device on the relay 15. The field contactor 11 then operates to effect direct-current excitation of the motor field. The contactor 11 also completes a short-circuit across the contacts 18 for a time interval, so that the operation is not affected by disturbances occurring as the motor pulls into synchronism. The contactor 11 also inserts reactance 22 in the circuit of the relay coil 17 and removes resistance 23 therefrom, so that the setting of the relay 15 is adjusted and the relay responds to disconnect the motor field at a different phase relation between the supply voltage and the armature current after the contactor 11 closes.
Patent GB-616461-A (GB)
Title: Improvements relating to means for actuating slidable vehicle or other doors
IPC: E05F15/14
Filed: 1946-09-04
Abstract: 616,461. Door-operating appliances. C.A.V., Ltd., PRIDDLE, A. T. C., and BEVIS, W. A. Sept. 4, 1946, No. 26561. Drawings to Specification. [Class 65 (i)] A power-operated sliding door is actuated by mechanism comprising a pairof flexible transmission members carried by pulleys, one of which is driven by a reversible electric motor through an irreversible worm-gear and a friction clutch allowing the door to be opened independently of the power source. In the arrangement particularly described, the door is connected by two flexible metal tapes, one of which passes over a pulley at one end of the door track, to a pulley at the other end of the door track, forming one element of a friction clutch which is driven through irreversible worm-gearing by an electric motor. The motor has separate field circuits for its two directions of running, each including a limit switch actuated by a striker on the door carriage, and the latter part of the closing movement may be slowed down by providing a resistance which is connected in parallel with the armature by a switch actuated by the striker. The closing limit switch may be replaced by a thermal delay switch in orderto ensure that the door closes completely.
Patent GB-1304751-A (GB)
IPC: G01C19/18
Filed: 1970-06-02
Abstract: 1304751 Making universal joints; electro erosion SINGER CO 2 June 1970 [1 July 1969] 26565/70 Headings B3A and B3V [Also in Divisions F2 and G1] A universal joint for connecting a gyroscope rotor to a rotor drive shaft comprises inner and outer hollow flexure units 10, 12 welded together, the outer unit carrying a rotor mounting ring 14 and the inner unit carrying stop rings 16, 18 which co-act with a flange 136 on the rotor mounting ring 14 to limit tilting of the rotor relative to the drive shaft axis ZZ (see Divisions F2, G1). In manufacture, the hollow cylindrical blanks for units 10, 12 are first bored with holes 50-64 and 94-108 to form flexure bars 38, 40, 46, 48, 86-92. The holes 94-108 in unit 12 are radial, but the holes of each pair in unit 10 are mutually parallel to give uniform thickness flexure bars. The units 10, 12 are then welded together at 166, 168 by electron beam welding. Slots 66, 66<SP>1</SP>, 68, 68<SP>1</SP> are cut by spark erosion using an electrode assembly 176 (Fig. 6A) which is moved longitudinally by hydraulic means, transversely through the workpiece (Fig. 8, not shown). Slots 70, 72 are cut using a straight bar or wire electrode (186). The rotor mounting ring 14 is welded to portions 82, 84 of the outer unit 12. The stop rings 16, 18 are positioned relative to the flange 136 of ring 14 by shims 190, 192 and clamps 196, 198 (Fig. 10) for electron beam welds 172, 174 which secure the stop rings to each other and to a ring portion 32 of the unit 10. The shims extend through slots 158-164 in the stop ring 18 and are separated by central spacers 194. Finally the remaining slots 74-80, 110-132 are cut by spark erosion using a pair of electrodes 204, 206 (Fig. 11) which are moved parallel to one another transversely into the workpiece (Fig. 12, not shown). Thus the workpiece remains rigid until the stop rings have been secured, protecting the flexure bars from damage during manufacture and subsequent handling.
Patent GB-281063-A (GB)
Title: Improvements relating to machinery to be employed in the cleaning or scouring and polishing of tinplates and other like metal coated plates or sheets
IPC: B24B29/06
Filed: 1926-10-25
Abstract: 281,063. Thomas & Co., Ltd., R., and Jones, E. A. Oct. 25, 1926. Cleaning. - In a machine for cleaning or scouring and polishing tin plates &c. of the kind in which the plates are passed through rollers arranged in a casing containing bran or other cleaning material, the bran &c. being delivered by an elevator to a screw conveyer which distributes the bran to the rollers, the conveyer 5 is enclosed in a casing 7 having a longitudinal slot 7a which delivers the bran to the cleaning or scouring rolls 9, 9<a>, 9<b>, the excess bran &c. falling from the troughs 10 into the casing 11 whence it is returned to the casing 7 by an elevator. The plates then pass throgh roll; 13, 13<a>, a wiper comprising a brush 15 co-acting with a roller 14, rolls 13<b>, 13<c> and another wiper 14, 15 and are deposited finally on a conveyer 16 of the endless-band type arranged at right angles to the direction in which the plates &c. travel through the rolls 9 &c. Mechanism for agitating the bran &c. of the kind described in Specifications 249,332 may be applied to the rolls 9, 9<a>, 9<b> and the troughs 10. Gearing may be provided so that the direction of travel of the conveyer 16 may be reversed at will.