baber/WOPTO huggingface dataset:
Patent GB-186266-A (GB)
Title: Improvements in and relating to mechanical conveyors of bread dough, flour, grain and the like
IPC: A21C1/14
Filed: 1921-11-08
Abstract: 186,266. Mason, Ltd., W. F., and Jones, J. L. Nov. 8, 1921. Fixed-bucket elevators; feeding-devices. - One of the upper sprockets of an endless-chain bucket elevator for bread, dough. flour, grain, &c. is coupled to a driving-shaft by ratchet mechanism which is disconnected automatically whenever a load is ready to be deliverd to a bucket at the foot. As applied to a dough-moulding plant, a sprocket d free on the shaft e carries a. pivoted pawl m which is forced downwards by a spring n to engage a ratchet-wheel l fast on the shaft e and is disengaged by a bell-crank lever o mounted on a vertically movable rod r. The lower end of the rod r is conected by a pivoted link to a lever t, Fig. 5, which is depressed by a pin v<1> on one of the gear-wheels v of the dough-moulding plant a<2> against the resistance of a spring x. When the pin v<1> is out of contact with the lever t, the movement of the elevator is stopped by the disengagement of the pawl m, and dough is delivered to a bucket b from the conveyer y. Backward movement of the elevator when the pawl m is disengaged is prevented by the engagement of projections d<1> on each sprocket d with the side of a spring-controlled piston d<2>. Forward movement is stopped by the interposition of a stop r<4> carried by the rod r in the path of the projections d<1>. Each bucket b has a lip b<1>.
Patent GB-1218766-A (GB)
Title: Recovery of biphenyl
Inventor: MAJEWSKI THEODORE EUGENE
IPC: C07C7/00
Filed: 1968-06-21
Abstract: 1,218,766. Biphenyl. DOW CHEMICAL CO. 21 June, 1968, No. 29687/68. Heading C5E. Biphenyl is recovered from the residue left after an alkylbenzene such as toluene is hydrodealkylated to produce benzene with biphenyl or a by-product (e.g. at 600-800‹ C. using Cr 2 O 3 /Al 2 O 3  catalyst), the reaction mixture being fractionally distilled to obtain a residue containing at least 30 wt. per cent biphenyl, by the steps of (1) cooling the residue to 0-15‹ C., thereby forming a solid crude biphenyl, (2) separating said crude biphenyl from the remainder of the residue, (3) washing the crude biphenyl with 0À1-3 ml. (per gram of crude biphenyl) of at least one solvent selected from lower alkanols, acetone, methyl ethyl ketone, lower alkyl monoethers of ethylene- or propylene-glycol, p-dioxane or a mixture of any of these with up to 10 wt. per cent water, and (4) fractionally distilling the washed crude biphenyl to obtain purified biphenyl. The washing step (3) is preferably conducted at 0-30‹ C. using aqueous ethanol.
Patent GB-509105-A (GB)
Title: Improvements in the revaporization of liquid oxygen
IPC: F17C9/02
Filed: 1938-10-14
Abstract: 509,105. Revaporizing liquid oxygen. LINDE AIR PRODUCTS CO. Oct. 14, 1938, No. 29754. Convention date, Nov. 9, 1937. [Class 8 (ii)] A liquid oxygen conveying conduit 16 enclosed in a heater 10 is internally packed with bunched copper &c. wire 24 soldered to the conduit by dipping. Alternatively the wire may be replaced by a twisted metal strip substantially filling the tube, or by transverse baffles projecting alternately from opposite sides of the tube, or by Raschig rings.
Patent GB-381357-A (GB)
Title: Trolley inspection platform for electrically propelled vehicles
IPC: B60M1/28
Filed: 1931-10-27
Abstract: 381,357. Omnibuses, tramcars, &c. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and WARNER, P. E., Mayfield, Chapel Lane, New Longton, near Preston, Lancashire. Oct. 27, 1931, No. 29756. [Classes 103 (iv) and 108 (i).] A horizontal inspection platform for the trolley-head of an electricallydriven vehicle comprises a flap 4 mounted at one or both ends of the vehicle or on one side near an end and hinged at 3 so as to occupy preferably a vertical position as shown when not in use. The flap may be accessible from the upper deck, the staircase, or from the outside of the vehicle and in the last two cases one or more foldable steps may be provided to assist climbing. In a vehicle having a covered upper deck the flap when not in use may cover the outside of an opening or it may be hinged below a window 1 inside the vehicle and held bv a catch 5 in this position to prevent rattling, and be swung through the window opening to its outside horizontal position in which it is supported by the window-sill 11, rubber stops being provided between the flap and sill. When applied to a vehicle with an open upper deck the flap is supported in its operative position on the vehicle rail or other support. Serrated tread plates may be provided on the flap.
Patent GB-305561-A (GB)
Title: Improvements in and relating to carburettors
IPC: F02M19/03
Filed: 1927-11-07
Abstract: 305,561. Flower, J. W. Nov. 7, 1927. Spray carburettors. - A horizontal cylindrical body 1 has a flanged end 3 for connection to the engine, the other end being closed by a screwed cap and provided with air-inlet apertures 4 controlled by corresponding apertures 6 in a rotatable sleeve 5. Within the bodv 1 are provided a throttle valve 9 and a mixing device 7 consisting of a cylinder 16 the closed end of which has tangential air-inlet apertures 19, Figs. 2 and 3, and along the axis of which are two tubular members 22, 23 of which 23 is fixed to the closed end and the inner member 22 a tight fit within the outer member, an annular space 25 being formed between the tubes. The free ends of the tubes are shaped to receive the head 17 of a valve the hollow spindle 26 of which is screwed into the inner tube and is adjustable therein by thumb-nuts 27. The valve is prolonged by a nipple 28 over which fits a tube 29 the curved end of which is urged by a spring 32 against a curved boss on the throttle valve 9. For slow running, fuel is fed from float chamber 10, Figs. 2 and 4, to a chamber 13 provided with a perforated tube 15 enclosing an air-inlet tube 15'. The emulsion formed passes through a duct 13<1>, Fig. 2, and a port 35 to the interior of the valve stem 26 whence it passes through nipple 28, tube 29 and ducts 30, 31 to the interior 37 of the hollow throttle valve spindle, whence it passes through a duct 33 in the throttle to the induction passage 8. Additional air may be admitted to the throttle spindle through a duct in the body 1 controlled by a projection on the sleeve 5. For normal running, with throttle opened, suction acts in the annular space 25 which is supplied with fuel through duct 14<1>, the fuel issuing as a fine film into a choke tube 41 where it mixes with swirling air entering through the tangential openings 19. The passages 13<1>, 14' are adjustable.
Patent GB-200019-A (GB)
Title: Steering wheel locks
IPC: B60R25/022
Filed: 1922-10-31
Abstract: 200,019. Pottinger, J. J. Oct. 31, 1922. Guarding against unauthorized use.-Comprises a locking-device for steering hand-wheels in which a two-part clamp 4, 5 is secured to the steering- column and carries a sliding member 6 which is adapted to engage a part of the steering-wheel and can be locked in either of two positions. The movement of the member 6 is limited by a pin 19 which engages a slot in the member, the pin being carried by the clamp and having a point entering a hole 20 in the steering-column to prevent movement of the clamp. The member 6 is formed with two recesses 16 each of which can be engaged by a semi-cylindrical pin 14 carried by a key-controlled cylinder 13 to lock the member against movement. The two parts of the clamp are formed with inter-engaging parts 22, 26 and are secured together by a screw 29. Recesses 11, 25 in the parts of the clamp are filled with rubber or other resilient material.
Patent GB-980345-A (GB)
Title: Improvements in or relating to portable electrically-powered devices for driving rotary elements
IPC: H02J7/00
Filed: 1962-08-03
Abstract: 980,345. Polishing nails and dentures. N. A. SWALLOW. Sept. 12, 1963 [Aug. 3, 1962], No. 29832/62. Heading A5R. [Also in Divisions B1, B3, F1 and H2] A battery - operated electric torch is modified by the replacement of the bulb by a small electric motor 12 which may be used to drive a variety of devices. As shown, a nylon friction chuck 29 carries a twist drill 30, but it may drive a nail polisher or a denture cleaner and polisher. The device may also be arranged to receive electrical power from an external source.
Patent GB-602208-A (GB)
Title: Improved means for rigidly connecting solid or hollow bars or the like
IPC: E04G7/14
Filed: 1945-11-08
Abstract: 602,208. Scaffolding. clamps. MARELLI. E., and EPPLER, J. Nov. 8, 1945, Nos. 29861 and 29862. Convention dates, Aug. 28. 1944, and July 9, 1945. [Class 20(ii)] A device for clamping together tubes. rods etc. which may form parts of scaffolding or building frameworks, comprises a recessed body 1 and recessed clamping members 7, 8 engaging the body 1 by means of grooves and splines which are so inclined to the axes of the tubes that when the clamping members are slid into position they are laterally displaced towards the axes of the tubes. Each clamping member 7, 8 of Fig. 1 has a spline 11 on one side and a groove 14 on the other engaging complementary splines and grooves on the body member 1. In a modification (Fig. 6), the clamping members are interchangeable and have grooves 33, 34 on either side for complementary splines 21, 32 on the member 1. Clamping screws may be attached to the clamping members 7, 8.
Patent GB-698693-A (GB)
Title: A thread guide traverse mechanism for textile ring spinning frames, speed frames andthe like
IPC: D01H13/06
Filed: 1950-12-08
Abstract: 698,693. Traverse mechanism for spinning &c. machines. TWEEDALES & SMALLEY (1920). Ltd.. and WARRTNGTON C. Dec. 8, 1950, No. 30055/50. Class- 120(ii) A traverse mechanism for moving the thread guides across the surface of the drafting rollers in textile ring spinning frames &c. wherein two or more traverse rods actuated by eccentrics are employed, is characterized in that each eccentric is separately coupled directlv to each traverse rod and that the length of traverse on each rod is not necessarily the same although the rods may remain synchronized. As shown, the mechanism com-- prises a base A on which is pivoted, between centres A<SP>1</SP>, A<SP>2</SP>, a yoke B fitted with centres B<SP>1</SP>, B<SP>2</SP> between which is pivoted a splined shaft C on which are mounted two eccentrics E. and an intermediate eccentric F. Each eccentric E is formed with a slot E<SP>1</SP> for shaft C and two slots E<SP>2</SP> for two screws E<SP>3</SP> which fix the eccentrics to a disc E<SP>4</SP> slidably keyed to shaft C. Each eccentric E is encircled by a strap having: a rod E<SP>5</SP> attached to a traverse rod E<SP>6</SP>. The eccentric F projects from one face of a worm wheel F' freely rotatable on shaft C and situated between a collar F<SP>2</SP> and another worm wheel F<SP>3</SP> both of which are fixed on the shaft C. Wheels F<SP>1</SP> and F' have the same pitch diameter but one has more teeth than the other so that they rotate relative to each other when turned by the worm G<SP>1</SP> driven from drafting roller J. The eccentric F is encircled by a strap F<SP>4</SP> from which extends an arm F<SP>5</SP> pivotally connected to a lug on a stationary headstock G. When in operation, an oscillatory motion is imparted to yoke B and this motion is imparted to traverse rods E<SP>6</SP> in combination with the traverse imparted by the eccentrics E and, since the wheels F<SP>1</SP> and F<SP>3</SP> rotate slowly relative to each other, the starting and finishing position of each stroke of the traverse rods is slowly varied thus evenly distributing the wear on the top rollers.
Patent GB-925202-A (GB)
Title: Drum for drying photographic papers
IPC: G03D15/02
Filed: 1959-09-04
Abstract: 925,202. Drying drums; hollow rollers. AGFA A.G. Sept. 4, 1959 [Sept. 6, 1958], No. 30293/59. Class 34 (1). A drum for drying photographic papers comprises a polished sheet metal peripheral wall 1 and end U-shaped members 2, heat dissipation from the wall to the members being reduced by the fluted contact therebetween. Each member 2 has cooling air inlet and outlet apertures 3 which, during rotation of the drum are momentarily associated with baffles 4 carried by stationary drum lateral boundary walls 7. The wall 1 and the members 2 are rotatably guided through the engagement with fixed bearing rings 6 of bearing balls 5 supported by each member. Each ring 6 is of a low thermal conductivity material.
Patent GB-617833-A (GB)
Title: Improvements in or relating to electric insulators
IPC: H01B17/50
Filed: 1946-10-11
Abstract: 617,833. Insulators. BULLERS, Ltd., and PERRINS, G. Oct. 11, 1946, No. 30364. [Class 36] For the purpose of reducing radio interference an electric insulator is provided with a conductive coating on a portion of its surface in the form of one or more bands extending from one metal electrode to the other, the extent and resistivity of the coating being such as to provide a predetermined potential drop across the surface of the insulator. Bands 17 extending from cap 11 to socket 13 may vary in width along their length to vary the resistance at particular points, and the resistance near the electrodes may be reduced by widening the bands at their extremities. The conducting coating may be provided by ceramic glazes or other materials having the required conductivity. Specification 527,357 is referred to.
Patent GB-786416-A (GB)
Title: Improvements in and relating to vacuum deep-drawing of thermoplastic sheet material
IPC: B29C51/10
Filed: 1956-10-05
Abstract: 786,416. Vacuum deep-drawing of thermoplastic sheet material. HYDRO-CHEMIE AKT.-GES. Oct. 5, 1956 [Oct. 5, 1955], No. 30455/56. Addition to 781,979. Class 87(2). In the parent Specification the maximum vacuum is not applied to the mould 2 until the sheet material 17 is about to make contact with the mould. The present in. vention incorporates the additional step that the vacuum is cut off from the mould only after the moulded sheet material has cooled down enough to become solid. This ensures that minute details of the mould surface are reproduced on the moulded sheet material. The Figure shows apparatus comprising an evacuating pump 10 which withdraws air from the mould 2 by way of pipe 8, valve 9 and ducts 3 in the mould. A branch pipe 11 containing a valve 12 leads from pipe 8 to a vacuum container 13. Another branch pipe 14 leads from pipe 8 via valve 16 to a compressed-air container 15. Operation. (1) Valves 9 and 16 being closed, and valve 12 being open, the pump 10 operates to maintain a substantial vacuum in container, whilst the sheet 17, which is clamped on the mould by a hinged frame 18, is heated by an electric resistance heater 19. (2) The heater 19 is switched off and valve 9 is opened, whereby the sheet is sucked into the mould. (3) Just before the sheet makes contact with the mould the valve 12 is closed, as in the parent Specification, to give a high vacuum between the mould and the sheet. (4) This high vacuum is maintained until the sheet is cool and solid. (5) Valve 9 is closed, frame 18 is swung away and valve 16 is opened, whereby compressed air forces the sheet away from the mould surface. Immediately after valve 9 has been closed, valve 12 is opened to re-establish the vacuum in container 13. The valves 9, 12 and 16 may be operable manually or automatically. If they are operated mechanically, (a) the valve 9 may open a pre-determined time after the heater 19 has been switched in; (b) valve 12 may be closed either a pre-determined time after valve 9 has been opened, or in response to an increased pressure in container 13 ; (c) opening of valve 16, closing of valve 9 and re-opening of valve 12 may be time-controlled to occur a predetermined period after the opening of valve 9, this period being sufficient for the moulded sheet to cool and solidify. The mould may be concave, as shown, or convex.
Patent GB-629756-A (GB)
Title: Improvements in and relating to electric lamp holders
IPC: H01R33/08
Filed: 1947-11-18
Abstract: 629,756. Lamp holders. BRITISH THOM. SON-HOUSTON CO., Ltd., and WOOD, C. W. Nov. 18, 1947, No. 30538. [Class 38 (i)] In a discharge-lamp holder of the kind having an arcuate slot 4 intersected by a diametral slot 2 and receiving bowed spring contacts 3 with insulated tips 9, as disclosed in Specifications 526,713, 557,496, and 572,479, the contacts embrace pillars 7 which secure them in the holder and have extensions 6 engaging holder projections 8 to bias the contacts. The pillars, preferably of metal, are drilled for the leads and for the clamping screws 10, which also serve to secure the contacts 3. Cable entries 12 are provided adjacent each pillar and a rim 11 positions a back-plate which is retained by fasteners 14 connected to an arcuate earthing strip on the holder face, Fig. 1 (not shown).
Patent GB-1521072-A (GB)
Title: Electronic ignition device for an internal combustion eng-ine
IPC: F02P3/045
Filed: 1975-07-22
Abstract: 1521072 Ignition system DUCELLIER ET CO 22 July 1975 [31 July 1974 24 Feb 1975]  30561/75 Addition to 1473692 Heading F1B In the ignition system of Parent Specification (basically as shown here in Fig. 4), protection of the amplifier stage against the formation of high frequency oscillations at the instant of ignition is effected by connecting a diode 46 and capacitor 47 in parallel between the emitter of transistor 5 and the base of transistor 6. Again, Fig. 1, the two condenser delay circuits are replaced by a known delay circuit 31 and a logic over-ride circuit 33 receiving signals from the delay circuit 31 and the overvoltage protection circuit 32. The circuit 33 may additionally receive a signal directly from the triggering device 7.
Patent GB-702397-A (GB)
Title: Electric signal transmission systems and repeaters therefor
IPC: H04B17/40
Filed: 1950-12-15
Abstract: 702,397. Submarine repeaters. WESTERN ELECTRIC CO., Inc. Dec. 15, 1950 [Dec. 17, 1949], No. 30645/50. Class 40 (4) [Also in Group XL (c)] In an electric signal transmission system including a number of spaced unattended repeaters, the gain of the repeaters is sharply peaked at a predetermined frequency or narrow band of frequencies characteristic of each repeater, so that the performance of individual repeaters can be ascertained from current, e.g. noise current measurements made at the frequencies of the individual planks. A system working over a submarine cable in which the repeater power is fed over the cable is described with reference to Fig. 1 (not shown), and includes repeaters, Fig. 2, in which a crystal 115 is connected to form a sharply tuned resonant circuit across the feedback circuit to decrease the feedback over a very narrow frequency band. Power is fed over the cable core 8 to the heaters of valves 60-62 which are in series and the total drop across the heaters is used for H.T. purposes. Equalisation is effected in the input and output circuits and the repeater gain characteristic is shaped by inter-stage inductors and capacitors, and by the tuned circuits across a resistor 76 in the feedback circuit. In further embodiments, Figs. 5 and 6 (not shown), the crystal is connected in the main amplifier path and across the secondary of the input transformer respectively and the use of tuned circuits, mechanical resonators and cavity resonators as an alternative to the crystal is also mentioned. In the.testing system disclosed the peaks which may have amplitudes up to 25 db. are spaced at 100 cycles intervals in a 4,000 cycle band at the upper end of the frequency spectrum and a narrow-band noise measuring device such as the heterodyne frequency analyser disclosed in U.S.A. Specification 1,976,481 is used at the testing station to determine the performance of each repeater, which in conjunction with load-gain measurements on individual peaks may be used to determine the performance of individual stages. Test oscillators may be used to send currents of the individual peak frequencies and the go and return lines may be looped by a filter passing the test band so that all testing may be effected at one terminal. Circuit arrangements of the crystal in the feedback path are varied according to the frequency band available for testing so that phase changes arising from the peaking circuit do not lead to instability. Specification 425,639 is referred to.
Patent GB-1183236-A (GB)
Title: Improvements in or relating to Worm Compressors
Inventor: WELLER GUNTER
IPC: F04C18/16
Filed: 1967-07-04
Abstract: 1,183,236. Rotary compressors. WISSENSCHAFTLICH-TECHNISCHES ZENTRUM (WTZ) PUMPEN UND VERDICHTER. July 4, 1967, No.30688/67. Heading F1F. A rotary compressor having a pair of externallymeshing screw rotors with synchronizing gears 13 provided on the compression side of the rotors and a transmission gear train on the suction side having a larger gear 8 mounted on a shaft 7 which carries one half 9 of a coupling and a pinion 12 mounted on the shaft of the male rotor 3 has the shaft 7 journalled in a radial ball bearing 11 and a radial cylindrical bearing 10 whose inner race is axially slidable with respect to its outer race and each of the rotors journalled radially at both ends in radial cylindrical roller bearings 14 whose inner races slide axially with respect to the outer races and axially at the compression end of the compressor by radial inclined ball bearings 15 having divided outer races.
Patent GB-1120142-A (GB)
Title: Improvements in or relating to sensing switches
Inventor: CALL DANIEL DALE
IPC: H01H35/00
Filed: 1965-07-20
Abstract: 1,120,142. Counters. BELL & HOWELL CO. 20 July, 1965, No. 30724/65. Heading G4D. [Also in Division H1] A sensing switch, particularly for sheet form members, comprises a sensing arm 20 carried by a rotatable shaft 22 and projecting into the path of members 12 to be sensed and a pair of contact carrying blades 31 and 32 actuated by a cam 30 on shaft 22 when the shaft is rotated by a member 12 striking the sensing arm 20. This sensing energizes a counting mechanism (50) or a cheque-endorsing machine.
Patent GB-1501312-A (GB)
Title: Suspension device for squeegee-supporting tubes in rotary screen printing machines
IPC: B41F15/44
Filed: 1976-07-23
Abstract: 1501312 Supporting squeegees in screen-printing machines SOC ALSACIENNE DE CONSTRUCTIONS MECANIQUES DE MULHOUSE 23 July 1976 [12 Aug 1975] 30738/76 Heading B6C A holder 14 which serves as a support for a squeegee (16), Fig. 1 (not shown), within a screen cylinder (4) is releasably fastened on to one end of an arm 18, Fig. 3, which is in turn mounted on a vertical shaft 24 located remote from the screen axis and supported by the bedplate 12 of the screen-printing machine; the arm 18 can pivot about shaft 24 when the fastening device 20 is released so as to clear the end of screen 4 when it is desired to remove or replace holder 14; the height of arm 18 and hence the pressure exerted by the squeegee (16) on screen (4) is also adjustable. The pivoting of arm 18 is accomplished manually by handle 82 once clamping jaws 74, 80 of device 20 have been released, the arm 18 being connected via bracket 40 to cylinder 42 rotatable with respect to shaft 24. The height adjustment of arm 18 is effected by a screw jack operated by knob (36), Fig. 2 (not shown), co-operating with shaft 24, the degree of adjustment being monitored on an indicator, Fig. 4 (not shown). Further a fluidpressure jack allows the entire squeegee arrangement to be raised or lowered as a unit when removing or replacing the squeegee. Fluidpressure admitted by valve 60 lowers cylinder 42 against the action of spring 56 when it is required to operate the machine; spring 56 returns the cylinder and squeegee to raised, inoperative position on release of pressure when required.