baber/WOPTO huggingface dataset:
Patent GB-305138-A (GB)
Title: Improvements relating to the removal of work in shoemaking machines
IPC: A43D23/00
Filed: 1929-01-30
Abstract: 305,138. British United Shoe Machinery Co., Ltd., (Assignees of Jorgensen, B.). Jan. 31, 1928, [Convention date]. Addition to 278,810. Lasting. - The mechanism for removing a shoe from a machine at the end .of the machine's cycle, described in the parent Specification, is modified to remove the shoe by a swinging movement and to invert the shoe so as to release it bottom downward. In addition, a safety device is provided for rendering the shoe-removing mechanism inoperative unless the operating means of the machine is in the outof-the-way position. The shoe gripping and releasing means is constructed as described in the parent Specification, but the releasing mechanism is provided with a projecting arm 110. The carrier arm 52 is pivoted on a shaft 54 and is swung through approximately 180‹ to invert the shoe and position it above a shoot or conveyer. On reaching this position the arm 110 contacts with an adjustable roll 106 and the shoe is released as described in the parent Specification. The arm 52 is swung by a spur wheel 114 and gearing 116, 118 operated by rack pinion and segment gearing driven by a onerevolution clutch substantially as described in the parent Specification, but a second clutch is interposed between the chain 186 and the worm 146 driving the cam-shaft 142 which operates the shoe removing mechanism. This additional clutch is of any usual form operated by a wedge .arm 190 spring-pressed into position to disconnect the sprocket wheel 184 from the worm 146. Links and arms on rock shafts connect the arm 190 with a pivoted arm 204 provided with a roll in the path of a lug 208 secured to the pivoted arm which carries the heel lasting devices as described in the parent Specification and Specification 246,582. The arrangement is that the arm 190 disconnects the shoe removing mechanism from its driving mechanism unless the lasting devices are away from the shoe. To allow operations on a new work piece to be commenced before the arm 52 has completed its outward swing, a cam 140 acts on lever and link mechanism 214, 212 to maintain the arm 190 in operative position from the point when the shoe has been raised clear of the lasting devices.
Patent GB-748274-A (GB)
Title: Improvements in and relating to pneumatic separating apparatus for cereals and granular products
Inventor: MURPHY FRANK
IPC: B07B7/00
Filed: 1953-02-04
Abstract: 748,274. Pneumatic separating. ROBINSON & SON, Ltd., T. Feb. 1, 1954 [Feb. 4, 1953], No. 3104/53. Class 117. A conveying air stream projects grain tangentially into a partcircular chamber, the air-stream by-passing the chamber, which has a bottom opening of fixed size connected by inclined trunking to an inlet in further trunking up which the by-passed air is flowing. In one embodiment the grain is carried by the air current from the inlet duct 8 into a separator chamber 7, being guided round the opposite arcuate wall to reach an an opening 12 and pass through an inclined passage 13 opening at 14. The air current is guided down the trunk 27 by a curved extension 26 thereof and thence passes upwardly round the guide 20 into the passage 15, into which the grain opening 14 leads. The grain falls from the opening 14 into a hopper 16 and leaves by an air seal 19, while the lighter impurities are carried up in the airstream to the outlet duct 6 leading to a cyclone separator and fan. The air velocity in passage 15 is controlled by a plate 21 carried on pivoted members 22, movable by an external arm 23 engaging a slot 24 in a calibrated quadrant 25. In an alternative construction, Fig. 1 (not shown), the inlet duct is vertical, the air separation occurring in the neighbourhood of the member 20.
Patent GB-162765-A (GB)
Title: Improvements in or relating to locks and catches for railway and other carriage doors
IPC: E05B63/20
Filed: 1920-02-02
Abstract: 162,765. Hoadley, T., and Hoadley, J. R. Feb. 2, 1920. Latches, sliding; striking- plates.-In a railway-carriage door lock of the type in which the main latch y is withdrawn by a pinion on the handle spindle 15 and held back until the door is shut, by a tumbler r controlled by a bolt h, the tumbler is controlled by a spring 1 engaging a recess z therein and lying in a housing 2 within the lock framing c. For the striking- plate there is employed a fitting, Fig. 14, consisting of a two-part casing 20, 21, which serves as a housing and guide for a spring latch-piece 31, which is arranged obliquely as shown. The main bolt is withdrawn from the inside of the carriage door by a sliding plate carrying upon one face a finger-piece for its operation, and, on the other, two projecting pins engaging the bolt, a guard fence being fitted to prevent accidental release.
Patent GB-1424753-A (GB)
Title: Narrow band fm receivers
IPC: H03D3/02
Filed: 1973-01-22
Abstract: 1424753 FM receivers NATIONAL AERONAUTICS & SPACE ADMINISTRATION 22 Jan 1973 [20 Jan 1972] 3110/73 Headings H3A and H3R An FM receiver comprises: a phase locked loop demodulator for demodulating an FM signal having a decreasing bandwidth as a function of signal strength, whereby at a selected low value of carrier-to-noise ratio the demodulator approaches a threshold at which it loses lock; and a signal suppressor 30 for decreasing the carrier signal strength to the demodulator as the incoming carrier-to-noise ratio decreases, so as to extend the threshold. The suppressor 30 may be a either a noise operated a.g.c. or, preferably, a bandpass limiter. The phase locked loop includes a filter 40 which includes a lead-lag network which gives a noise bandwidth permitting the threshold extension. A suitable filter is described with reference to Fig. 7 (not shown).
Patent GB-1525334-A (GB)
Title: Transducer means
IPC: G01L1/10
Filed: 1976-01-28
Abstract: 1525334 Flexure transducers SPERRY RAND CORP 28 Jan 1976 [3 March 1975] 03232/76 Heading G1G The flexure transducer 11 described in Specifications 1432818 and 1466461 is allied with modified external circuitry such that the surface Rayleigh waves sent along first and second paths on opposing sides 10, 10a of the transducer 11 are launched via a switch 21 connected to the respective drivers 15, 15a or receivers 14, 14a. The phase difference between the driving and received signals, different for each side 10 and 10a, when the transducer 11 is flexed, results in a frequency difference derived from the phase detector 30 which primes the V.C.O. 27 feeding the counter 35 operating during successive switch operating periods associated with each side 10, 10a. Two frequencies are thus registered 39, 40 during these successive periods to give a characterizing frequency difference from subtractor 43 indicative of flexure. A further switch (not shown) may be incorporated with the receivers 14, 14a.
Patent GB-881195-A (GB)
Title: Improvements in or relating to the production of resin-impregnated fibrous material
Inventor: JOSEPH CURT BOAS
IPC: B29C53/24
Filed: 1958-02-01
Abstract: 881,195. Moulding reinforced synthetic resins. RUBBER IMPROVEMENT Ltd. Jan. 28, 1959 [Feb. 1, 1958], No. 3383/58. Class 87(2). [Also in Group VIII] A laminated web is formed and corrugated by feeding polyester resin from a reservoir 8 on to a regenerated cellulose film 1 drawn over a bed plate 5, applying to the coated film a glass fibre mat 11 and pressing it into the resin by rollers 10, de-airing the mat by transverse rollers 14 covered with wire mesh, applying a further film 16 of regenerated cellulose to complete the laminate, and feeding the latter over fingers 19 leading to a corrugated former 20, extending through a curing oven 21, and against which the laminated web is confined by corrugated guide bars 23. The laminated web is drawn through the apparatus by a series of rotating discs 26. Pairs of rollers 29 are provided for stretching transversely (a) the film 1 immediately before the polyester resin is applied (b) the film 16 before it is applied to the corrugated mat 11 by rollers 15 (c) the mat 11 and underlying film 1 before the film 16 is applied, and (d) the laminated web immediately before passing on to the fingers 19. The rollers 29 are arranged in pairs at each side of the moving material, each pair being mounted on a pivot 31, Fig. 8, so as to be adjustable angularly relatively to the direction of movement of the material whereby the degree of transverse stretch may be varied. When the laminated web has passed the last set of rollers 29 the tensions exerted by the driving discs 26 produce flutings in the web which are modified to the desired corrugated form on passage over the fingers 19. The curing oven 21 has three zones in which different temperatures are maintained for controlling the curing of the resin. The web emerging from the oven is cut into desired lengths by a cutter 27 and transferred to a table 28. Specification 780,667 is referred to.
Patent GB-1030451-A (GB)
Title: Improvements relating to the purification of benzene
Inventor: BRADLEY DEREK
IPC: C07C7/14
Filed: 1965-01-26
Abstract: Impure benzene is purified in a plurality of stages by successively cooling the benzene to produce crystals in mother liquor and separating the crystals in each stage, the crystals separated in the first stage being recovered as product and the crystals separated in any of the subsequent stages are transported back to the previous stage by means of a part of the impure benzene. In the two-stage process shown, impure benzene, which may have been cooled to ambient temperature if necessary, is introduced via pipe 1, tank 2 and pipe 4 to crystallization vessel 5.  Chilled brine is admitted to vessel 5 via pipe 6, and benzene crystals, separated from mother liquor and brine in separator 8, are thawed in duct 10 by water heated by heat exchanger 13. Liquid benzene is separated in tank 11.  Mother liquor and brine from separator 8 are separated in separator 17, the brine being recycled via line 18 to the refrigeration plant, and the mother liquor led via pipe 19, tank 20 and pipe 22 to the second crystallization tank 5a, to which chilled brine is admitted via line 6a.  Benzene crystals, separated from mother liquor and brine in 8a, are washed out of duct 10a by impure benzene supplied from tank <PICT:1030451/C4-C5/1> 2 through pipe 23 and are transported back to tank 2 via line 24. Fig. 2 (not shown), illustrates a three-stage process.  Other cooling means which may be used are heat exchange with a refrigerant, or evaporation of liquid butane or propane added to the feedstock.
Patent GB-210292-A (GB)
Title: Improvements in furnaces and furnace fronts for oil fuel burning
IPC: F23D11/00
Filed: 1923-02-05
Abstract: 210,292. Wallace, J. H. Feb. 5, 1923. Convertible solid-fuel and oil stoves; air supply for combustion.-A furnace front a, for application to a range, oven, &c., is arranged with conduits c into which a regulatable supply of air is admitted through holes e, the said air being heated as it passes downwards. A panel T of refractory material is supported on studs v to provide an air space s between itself and the furnace front, thereby preventing loss of heat, maintaining the burner valves t cool and eliminating noise. The air admission is controlled by screw-adjusted slides d, and free air may be admitted through slides n. The back of the furnace y, z is disposed as shown.
Patent GB-176764-A (GB)
Title: Means for translating vibrations
IPC: G01S1/72
Filed: 1922-02-06
Abstract: 176,764. Baron, H., (Signal Ges.). Feb. 6, 1922. Detecting subaqueous sounds. - Relates to means for transferring sound vibrations with maximum efficiency from one vibratory system or medium to another, such as in telephonic transmitters and microphones and submarine sound receivers, and consists in a double chamber the compartments of which are connected with one another by a region permeable to oscillations, such as an opening, the opening and compartments being of such a size that oscillation takes place in the twin chamber in a quasi-stationary manner, and the fundamental tuning lies within the audible range. The double chamber mav have curved walls so as to taper towards the periphery, as shown in Fig. 1, the depth of a compartment at the connecting opening o being equal to or greater than half the radius of the opening. Or there may be several openings such as o1, o2, Fig. 2, in the central partition. The volumes of the compartments should be proportional to the diameters of the adjacent sound-conducting pipes l1, l2. A diaphragm or other oscillatory structure may be coupled' to the twin chamber and tuned to its frequency, the higher frequencies of coupling corresponding to the overtones of the system. A number of chambers may be connected in series. Specification 151,662 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes also the following subject-matter which does not appear in the accepted Specification. One of the two chambers shown in Fig. 1 may be constituted by a human ear and the other by a telephone receiver, or a microphone may be used. In a megaphone, Fig. 4 (Cancelled), the trumpet 12 forms one chamber, and the chamber 1, the other, the voices being directed through a mouth-piece m upon a diaphragm d. Reference has been directed by the Comptroller to Specification 23366/93 [Class 40, Electric telegraphs &c.].
Patent GB-1076095-A (GB)
Title: Device for increasing the control range of a doubly-fed three-phase shunt commutator motor
IPC: H02P25/10
Filed: 1965-01-26
Abstract: 1,076,095. Control of A.C. motors. MEZ VSETIN NARODNI PODNIK. Jan. 26, 1965 [March 5, 1964], No. 3468/65. Heading H2J. The stator winding 1 of a three-phase shunt commutator motor is supplied through the secondary windings of a double induction regulator D in opposition to the mains voltage, the rotor winding 2 being supplied from double induction regulator B. The motor is accelerated by increasing the voltage applied to the winding 1, the rotor voltage remaining constant. When maximum torque has been attained, the rotor voltage is increased and the stator voltage is kept at a maximum. Thereafter, further increase of speed is obtained by reducing the stator voltage. A compensation transformer C has its primary winding connected in parallel with the stator winding 1.
Patent GB-1409862-A (GB)
Title: Connector for automatically establishing electric connections between vehicles particularly between railway vehicles
IPC: B61G5/10
Filed: 1973-01-24
Abstract: 1409862 Two-part coupling BURNDY ELECTRA SpA 24 Jan 1973 [11 Feb 1972] 3513/73 Heading H2E  A connector 1 attached to a railway vehicle makes contact with an identical connector on another vehicle, both connectors carrying both insulated female contacts 12 and male contacts 11 protected by retractable insulating sheaths 26 which in all positions leave no direct air path for breakdown of insulation. The semicircular sheath 26 carrying part-cylindrical projecting sleeves 42 round the male contacts sliding into part-cylindrical recesses 38 in the insulating base 4, is urged forward by helical springs in three holes 35 producing a resultant force through the centroid of the sheath 26. The forward movement of sheath 26 is limited by the engagement of projections 33 with inward flange 32 on casing 31. On mating with an identical connector, the female contacts 12 on the other connector engage male contacts 11, and the fixed sheath 5 on the other connector forces the sliding sheath 26 to retract, leaving at no time a direct air path between any contact and other metal part.
Patent GB-667018-A (GB)
Title: Means for regulating the supply of liquid fuel to prime movers
Inventor: IFIELD RICHARD JOSEPH
IPC: F02D1/12
Filed: 1949-02-09
Abstract: 667,018. Gas turbine plant. LUCAS, Ltd. J. Jan. 20, 1950. [Feb. 9, 1949] No. 3524/49. Class 110(iii). [Also in Group XXIX] Means for regulating the supply of liquid fuel to a jet propulsion engine, gas turbine or other prime mover comprises a valve q adapted to control a servo-mechanism and a spring-loaded movable member such as the diaphragm t for actuating the valve, the member being subject to the action of opposed fluid pressures one of the pressures being dependent on the speed of the prime mover and the other on the liquid fuel delivery pressure. As shown the fuel supply is regulated by a swash-plate pump comprising a body part b and a rotary part a driven by the prime mover. The part a has a radial passage 8 communicating with the pump inlet c whereby liquid fuel at a pressure proportional to the speed of the prime mover is delivered to a chamber 2 above the diaphragm. The chamber s below the diaphragm contains the valve closure q which is carried on a lever r attached at one end to the diaphragm t. The chamber s communicates with the pump's delivery passage f through a passage wand an adjustable throttle x and with the pump inlet c through a passage u with a restricted orifice v. The obliquity of the swash-plate is regulated as described in Specification 577,016, [Group XXIX], by a servo-mechanism comprising a spring- loaded piston h under the control of the valve q. The pressure in the chamber s is a fraction of the pump delivery pressure determined by the throttle x and the size of the orifice v. In a modification two diaphragms of different effective area are employed the space between the diaphragms being connected with the pump delivery by a passage having a throttle and a spill valve on the outlet side of the throttle, the chamber s being in free communication with the pump inlet. The diaphragm or diaphragms may be replacedby an equivalent piston. The servomechanism may control a fuel throttle or byepass valve instead of the pump swashplate. The control valve q and its actuating member may be remote from the servomechanism.
Patent GB-265966-A (GB)
Title: Improvements in apparatus for the reduction of heating in the iron parts adjoining the lead-in conductors of heavy current electrical apparatus
IPC: H01H33/55
Filed: 1927-02-08
Abstract: 265,966. Siemens - Schuckertwerke Ges. Feb. 15, 1926, [Convention date]. Transformers.-In order to reduce the heating of the iron casing adjoining the lead-in conductors to heavy current apparatus, the conductors 13 are surrounded partially or wholly by shortcircuit connections acting as screens. One such connection is shown in Fig. 4 applied to an arched or domed switch cover 11 with lead-in points in the form of tubes 121, 122. The tubes 121, 122 are lined with copper tubes 15, 16 which are united by straps 17, 18 so that the whole forms a closed winding or current transformer with a 1 : 1 ratio. The straps could be brought close to the cover as shown in dotted lines, or, as shown in Fig. 6, the windings could be in the form of rings 20 of sheet copper, the rings being interconnected by peripheral rivets 21 and arranged round each lead-in-point. Fig. 8 shows a winding of several turns 22, in circuit with which is a. measuring instrument 23, relay, or release device, whereas in Fig. 9 the winding 22 encloses the iron circuit 24 of a release device. The winding could be constituted by a surface of copper deposited either electrolytieally, or by spraying, or rolling on.
Patent GB-105227-A (GB)
Title: Improvements in Electric Couplings.
Inventor: VALETTE HENRI DE LA
IPC: H01R13/20
Filed: 1917-03-12
Abstract: 105,227. La Valette, H. de. March 31, 1916, [Convention date]. Plug couplings.-One part is provided with an enlarged head 4 adapted to be gripped by jaws 3, which are retained in their clamping position by the coned portion 7 of a sliding sleeve 5 pressed forward by a spring 6. The jaws 3 are formed by splitting a stem 2 screwed and pinned to a socket 1 fixed to one of the elements to be coupled. The sleeve 5 is surrounded by a handle or sheath 8 of insulating- material.
Patent GB-554422-A (GB)
Title: Improvements in or relating to chucks for lathes
IPC: B23B31/20
Filed: 1942-03-19
Abstract: 554,422. Chucks. MORTIMER, E. J. March 19, 1942, No. 3661. [Class 83 (iii)] The collet tube 2 of a hollow spindle chuck is moved to draw the collet 4 into the coned end 5 of the spindle by a hand-lever operated yoke 15 in a sleeve 16 sliding on sleeves 8, 9 mounted on a rearward extension of the tube and having a tapered part 18 that acts on wedge segments 10 to force them between the coned ends 8a, 9a of the sleeves. The sleeve 9 abuts the spindle 1 and the sleeve 8 is forced against an adjustable nut 7 on the tube 2. The sleeve 9 has pins 11 extending into recesses 12 in the end of the spindle 1 and transmits the drive by pins 13 and slots 14 to the tube 2.
Patent GB-143292-A (GB)
Title: Improvements relating to electric furnaces
IPC: F27B3/08
Filed: 1919-02-14
Abstract: 143,292. Moore, W. E. Feb. 14, 1919. Electrode furnaces.-In a tilting furnace, Figs. 1 and 2, the electrodes are mounted in arms 109 each supported by a separate crane fixed to the furnace; the hoisting-cables 145, 146 pass through hollow vertical columns 140 to hand or electricallyoperated drums located independently of the furnace. The cables of the outer columns converge. before leaving the furnace, to pulleys at the base of the centre column lying approximately in the tilting axis. Each crane jib 138 is fixed to a swivel cap 144 carrying two pulleys 162. The arms 109 are counterpoised by weights 140a attached to cables. Each electrode arm is hollow and consists of top and side plates, the latter of which embrace the hollow column and are secured to a guide-block 117 having a collar 118 and a groove engaging a feather 143 on the column; the side plates 114, 115 are insulated from the column and block, and between them is clamped a pair of plates 175 having diagonal grooves to receive the electric conductors 174. The electric conductors are clamped outside the furnace at a point in the tilting axis. The feather 143 extends only partly up the column, so as to allow the electrode arms to be turned when the electrodes are withdrawn from the furnace. The electrodes pass through water-cooled glands 100 resting on refractory rings 97. The electrodeholders, Fig. 4, comprise a fixed section 122 secured to the plates 114, 115, and hinged sections 123, 124 clamped together by a bolt and nut; each section is double water-jacketed, connecting-pipes with swivelled unions 135 being provided at the hinges. Flexible electric connexions 137 are also provided. The hinge-pins are slightly oval.
Patent GB-819855-A (GB)
Title: Improvements in or relating to torque wrenches
IPC: B25B23/142
Filed: 1958-02-05
Abstract: 819,855. Wrenches. BAHCO A. B. Feb. 5, 1958 [Feb. 5,1957 ; Jan. 21,1958], No. 3729/58. Class 61. [Also in Groups XIX and XXV] In a torque indicating wrench in which angular distortion of the wrench body resulting from applied torque is translated through a lever system to a pointer and in which a pointer housing and dial is supported by a part of the wrench which is connected to the wrench body but is relieved of torsional strain, the pointer is actuated by a calibration stud adjustably attached to the wrench body. As shown the wrench body 1 has a square head 2 adapted to engage a socket or key corresponding to a nut or bolt head, the body 1 being provided at its upper end with a recess 3 into which a tool for turning the wrench can be inserted. A surrounding sleeve 4 is fixed to the lower end of the body 1 by screws 5. A pointer housing 6 having a scale 11 is secured to the upper end of the sleeve 4 by a hub 7. The pointer 9 is pivoted at 10 to the housing 6 so that the indicating end of the pointer may move over the scale 11. The opposite end 12 has a slot 13 into which projects a transverse pin 14 provided on the free end of the calibration stud 15 which is secured adjustably in the wrench body. In a modification the head of the stud is provided with two or more transversely projecting pins. In another modification, Fig. 9, the stud 15 carries a ball 17 engaging a slot in the pointer 9. A manually adjustable auxiliary pointer 21 is adapted to be moved by the indicating pointer and to remain in a position corresponding to the turn of the pointer 9.