baber/WOPTO huggingface dataset:
Patent GB-693131-A (GB)
Title: Improvements in or relating to circulation-type protective oxygen-respiration apparatus
IPC: B63C11/24
Filed: 1951-02-14
Abstract: 693,131. Respiratory appliances. AUERGES. AKT.-GES.' Feb. 14, 1951 [Feb. 17, 1950], No. 3574/51. Class 81 (ii). In a closed circuit respiration apparatus a lung-controlled oxygen supply valve is actuated by an auxiliary valve during the exhalation period. In one embodiment, the normal circulatory path from a mouthpiece 1 is through an exhalation valve 3 and conduit 4 to a carbon dioxide absorber 5 and thence through conduit 6, breathing bag 7 and inhalation valve 9 back to the mouthpiece. At each exhalation of the user the small pressure produced in a chamber 16 in the auxiliary valve assembly depresses diaphragm 15 and opens the valve 14. This admits oxygen from a cylinder 11 to a chamber 32, resulting in pressure on a diaphragm 33 and opening of the main valve 34. Oxygen is thereby admitted to the breathing bag. The initial pressure in chamber 16 is maintained by non-return valve 18 and the flow of oxygen to the bag 7 continues until the latter is filled and its face 25 opens a relief valve 22, thereby venting the space 16. The pressure in the chambers 30, 32 leaks away through a choke 36. The gradual loss of exhaled air through the valve 22 serves to remove nitrogen from the circuit. In a modified form of the appliance (see Fig. 2, not shown) the control valve vents one side of a diaphragm subjected to full oxygen supply pressure and thereby opens the main valve into the system. When the control valve is closed the pressure on the two sides of the second diaphragm is equalised through a metered choke.
Patent GB-788971-A (GB)
Title: Improvements in and relating to an inflatable pneumatic article
IPC: B63B7/08
Filed: 1956-02-06
Abstract: 788,971. Air mattresses &c. ETABLISSEMENTS PENNEL & FLIPO. Feb. 6, 1956 [Feb. 7, 1955], No. 3652/56. Class 52(4) [Also in Group XXXIII] An inflatable mattress, pillow or upholstery formed by welding together air tight walls 1, 2 along their peripheral edges 3, 4 has a rubber fillet 6 welded along the internal joint line. The fillet 6 is more elastic than the walls and may be of round or triangular cross-section.
Patent GB-1126503-A (GB)
Title: Improvements in or relating to sign bearing elements
IPC: G06M1/24
Filed: 1966-01-27
Abstract: 1,126,503. Sign bearing elements. ZAVODY JANA SVERMY NARODNI PODNIK. 27 Jan., 1966 [30 Jan., 1965], No. 3672/66. Heading G4D. A calculating machine dial wheel or similar sign-bearing element is made from two or more components of differently coloured thermoplastic material, the protruding signs being subsequently overlapped to the height of the signs by a layer of thermoplastic material of another colour. Projections 29 fitting into recesses 39, and the laterally extending signs 21, 31 themselves, serve to locate the components in the mould while the overlapping material is added.
Patent GB-575178-A (GB)
Title: Method of manufacturing split tubular pins, cotters, plugs or like articles
IPC: E21D21/00
Filed: 1944-02-29
Abstract: 575,178. Cotters ; dowels. SCHMUZIGER, O. Feb. 29, 1944, No. 3742. [Class 89 (ii)] [Also in Group XXII] Springy longitudinally split tubular pins, cotters, dowels, plugs &c. for insertion into holes for locking or uniting parts, are made from strip steel containing manganese and silicon, with more than one per cent. of one of the elements, preferably silicon, the strip being cut into blocks having a width equal to twice the outside diameter of the finished article and then cold pressed and at the same time rolled or bent in the direction of the grain over a mandrel to provide between the edges a gap ranging from D to 3D - 1 where D is the external diameter d+1 d+3 and d the internal diameter, the bent block being finally tempered. The width of the block may vary to an extent representing a machining allowance of 15 per cent. One end may be tapered during bending or subsequently ground to proper taper or rounded off and the other end trimmed. The strip may contain 0.6 per cent of carbon, 0.9 per cent of manganese, and 1.9 per cent of silicon.
Patent GB-1439453-A (GB)
Title: Dc electric motors
IPC: H02P3/08
Filed: 1972-01-27
Abstract: 1439453 Control of DC motors SEVCON Ltd 27 April 1973 [27 Jan 1972] 3898/72 Heading H2J To prevent unstable operation during plug braking of a D.C. motor 18 having a series field winding 13 and controlled by reversing contacts 14, 15 and a chopper regulator 12, diodes 20, 21 and bucking field windings 16, 17 are connected as shown in Fig. 1, whereby each diode operates as a free wheel diode or a plugging diode according to the direction of rotation of the motor and, during plug braking following reversal of switches 14, 15 and of the functions of the diodes 20, 21, the field winding 16, 17 which is in circuit provides a field opposing that produced by the winding 13 to limit the generated armature voltage and so prevent runaway. In a modification, Fig. 2 (not shown), the bucking windings (16<SP>1</SP>, 17<SP>1</SP>) are connected in series with the winding 13 between the movable contacts of switches 14, 15, with diodes 20, 21 connected to the junctions of the respective pairs of windings. Operation during plug braking is the same as before, but all three field windings are energized during normal motor running.
Patent GB-123536-A (GB)
Title: Improvements in the Manufacture of Apple Jam.
Inventor: SIMPSON CLARENCE HENSON
IPC: A23L21/12
Filed: 1918-02-17
Abstract: 123,536. Simpson, C. H. Feb. 15, 1918, [Convention date]. Jam.-To make jam from apples, they are cut up with the rind into small pieces and boiled. When they are about half cooked, sugar is added, along with further water, cooked apple juice, or fruit pectin. Cooking is then continued, but is stopped before the cells in the larger pieces are broken down. Flavouring matters may be added.
Patent GB-898653-A (GB)
Title: Improvements in or relating to articles of sleeping equipment
IPC: A47G9/08
Filed: 1960-02-04
Abstract: 898,653. Sleeping bags. SLATER, T. Nov. 30, 1960 [Feb. 4, 1960], No. 3948/60. Class 133. A sleeping bag 10 has attached to its head 13 a panel 15 foldable along at least one transverse fold line to form a pillow, Fig. 2, fastening means 19, 20 being provided so that the pillow may be formed into a hood 22, Fig. 3. The panel 15 is padded and folds along two transverse lines to form the pillow and at the back of one of these fold lines is a sliding clasp fastener 21 in two halves 19, 20 extending in opposite directions from the centre. By bringing the halves of the fastener together they can be engaged, thus forming the hood. Draw tapes 25 in hems 23 have loops 26 through which their other ends are passed and tied beneath the chin. For storage the sides of the bag 10 are folded inwards, the bag is rolled from the foot, the panel 15 rolled around the bag and the tapes 25 drawn tight. Instead of a sliding clasp fastener other fastening means such as press studs may be used.
Patent GB-1027946-A (GB)
Title: Shifting mechanism for a change-speed transmission
IPC: F16H61/06
Filed: 1965-01-29
Abstract: 1,027,946. Change-speed control. F A. E. PORSCHE. Jan. 29, 1965 [Jan. 30, 1964], No. 3963/65. Heading F2D. An hydraulically operated automatic vehicle transmission includes a pair of spring-loaded pistons 52, 53 associated with the shift valve 28 and operating alternately at each gear change to control the pressure and exhaust connections to the ratio establishing brakes and clutches. In the arrangement shown the delivery from a pump 46 passes through a pressure regulating valve 47 and flow control valve 48 to the shift valve 28 which has connections 67, 68 to an exhaust valve 27 and a selector valve 26 connected to clutches 9, 10 and brakes 20, 21. The selector valve 26 is in communication with a centrifugal valve 73 on the output shaft 17. The valves 26, 27, 28 are interconnected by a linkage 29, 30, the former member of which is connected to the hand lever 31. The rods of pistons 52, 53 are connected by a lever whose mid-point is linked at 56 to the member 57 of a second linkage 57, 58, 62, the latter of which is connected by links 59, 64 with the throttle pedal 60 and an adjustable notched sector 60. With first gear engaged the pressure and exhaust zones 70, 68 of the shift valve 28 are respectively connected by passages 71, 72 to pistons 53, 52, the former of which is held in its inner position by its spring 55, while the latter is forced outwards against its spring 55<SP>1</SP>, and pressure and suction connections are made to engage clutch 9 and brake 21, and release clutch 10 and brake 20. For engagement of second gear the modulated pressure from valve 73 is fed to the chamber 76 of the selector valve 26 which, with the exhaust valve 27, moves to the right, while the shift valve 28 is raised so that the pressure and exhaust zones 70, 69 are connected to pistons 52, 53, respectively. Spring 55<SP>1</SP> returns piston 58 to its inner position and opens the flow-control valve 48 so that pressure liquid passes via connection 49 to valves 28, 26, to engage clutch 10 and brake 20, and release clutch 9 and brake 21. The pressure in passage 72 forces piston 52 outwards and closes flow valve 48, and on each successive gear change the setting of pistons 52, 53 is reversed. Overlapping of ratio during gear change may be effected by the notched sector 63 operating on valve 48 through link 64.
Patent GB-562122-A (GB)
Title: Improvements in portable chisels and the like
IPC: B25D3/00
Filed: 1943-03-12
Abstract: 562,122. Chisels. BLAND, H. BARKER-. March 12, 1943, No. 4023. [Class 61 (ii)] A hand percussive chisel of the kind comprising a tubular body with a chisel bit at the lower end adapted to receive blows from a slidable plunger with a weighted head, has a detachable chuck 5 secured as by screwing at 4 on a chisel guide 3 welded in the lower end of the tubular body 1 for holding the bit 8 in the body so as to be readily interchangeable, the chuck having an annular recess 12 housing a spring 14 which holds a flange 11 on the bit up against the end of the guide 3. The plunger 15 is guided clear of the body 1 by a bush 2 welded in its upper end and the weight 25 on the extremity 23 is readily removable and replaceable by others such as 26, 27 by means of the screw stud 24.
Patent GB-650065-A (GB)
Title: Improvements in or relating to a windshield washing apparatus
IPC: B60S1/52
Filed: 1948-02-12
Abstract: 650,065. Windscreen-washers. TRICO PRODUCTS CORPORATION. Feb. 12, 1948, No. 4175. Convention date, March 1, 1947. [Class 138(i)] [Also in Group XXIX] A windscreen-washer includes a liquid discharge orifice in the form of a lateral slot which can be flushed for cleansing purposes, the slot being cut in the rim of an opening of a chamber and on which rim is seated a plug screwed in the wall of the chamber. A nozzle 5, Fig. 1, for spraying liquid on a windscreen 1, is supplied with liquid by a suction operated pump 7, e.g. as described in Specification 467,950. Liquid enters the nozzle 5, Fig. 2, through a passageway 15, passes into a chamber 16, through passageways formed by the chamber wall and flats 24 on the shank 22 of a plug 19, into an annular passageway formed by the shank and a counterbore chamber 17, and is discharged through an orifice 18. The plug 19 seats on the rim 20 of the chamber 17. A gasket 21 may be interposed between the plug and the rim. In order to free the orifice of any clogging matter the plug may be screwed to a given or set position. off from its seat so that liquid will flow in a larger volume over the rim 20 and thus flush the orifice 18. Specification 643,795 is referred to.
Patent GB-1293681-A (GB)
Title: Bag filling machine having improved scale mechanism
IPC: G01G13/00
Filed: 1970-01-28
Abstract: 1293681 Weighing apparatus BLACK PRODUCTS CO 28 Jan 1970 [14 Feb 1969] 4189/70 Heading G1W [Also in Division B8] The weighing mechanism 19 of a bag-filling machine is detachable for storage in clean conditions when not in use. It comprises a load beam 33 from which a spout support frame 18, supported for vertical movement by pairs of leaf-springs 28, 29, is suspended by a disconnectable link 36. A link 35 connects the load beam 33 to a counterbalance beam 34 having a weight 37 adjustable to balance the weight of the spout support frame 18 plus a predetermined bag weight, and a fine adjustment weight 38. Bags 21 are filled by feeding a fluidized material, e.g. fertilizer, from a chamber 16 through a rubber tube 20 to a spout 17, a pinch valve 24 cutting off the flow when a given weight is reached. Stops 81, 82 limit the vertical movement of frame 18. Beams 33, 34 have knife-edge fulcra 31, 32 respectively. 90 degree annular V notches 51, 62, 60 in the beams are engaged by 60 degree knife edges 67, 68, 73 of the links 35, 36, the notched portions of the beams being offset so that the contact points with the knife edges lie on the beam centrelines.
Patent GB-448809-A (GB)
Title: Improvements in stuffing boxes for liquid pumps
IPC: F16J15/16
Filed: 1935-02-09
Abstract: 448,809. Stuffing-boxes. COUTTS & CO., 440, Strand, London, and JOHNSON, F., 218, Victoria Drive, Eastbourne, [Representatives of JOHNSON, J. Y.].-(I. G. Farbenindustrie Akt.-Ges.; Frankfort-on-Main, Germany) Feb. 9, 1935, No. 4225. [Class 122 (v)] In a pump convey ing liquefied propane butane, or other readi ly vapourizable liquids the stuffing box is heated sufficiently tc effect vaporization of the leakage and tc compensate the Thomsen-Joule effect, whereby deterioration of the packing material is prevented. Heating medium may be supplied to chambers in the box, packing material or shaft, or to a chamber f surrounding the box and axially adjustable thereon.
Patent GB-1383440-A (GB)
Title: Electric coupling arrangements
IPC: H03K17/78
Filed: 1972-01-28
Abstract: 1383440 Switching circuits TELEFONAKTIEBOLAGET L M ERICSSON 28 Jan 1972 [29 Jan 1971] 4243/72 Heading H3T A switching circuit comprises four switching devices, shown as transistors T1-T4, arranged in respective arms of a bridge and two control switches, shown as transistors T 5  and T 6 , connected between the control electrodes of respective diagonally opposite pairs of devices whereby a signal at an input terminal IN turns on one or other of the pairs of switching devices' As described, the transistors T 5  and T 6  are phototransistors controlled by luminescent diodes arranged in anti-parallel in series with a respective Zener diode so that an input signal exceeding a given value switches on one or other of the transistor pairs according to its polarity. A delay circuit RC at the input prevents both pairs being switched on together by the signal and further protection against simultaneous conduction is effected by phototransistors F t1 -F t4  which are controlled by luminescent diodes L 1 -L 4  to short the baseemitter path of one transistor when the adjacent one is conducting.
Patent GB-1014501-A (GB)
Title: Vehicle transmission systems
Inventor: WRIGHT JOHN THOMAS MATTHEW
IPC: B60K17/10
Filed: 1963-07-01
Abstract: 1,014,501. Controlling molar vehicles. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug. 17, 1964 [July 1, 1963], No. 4271/63. Heading B7H. The swash-plate angle of an hydraulic pump in a tractor transmission is adjustable by hand and foot controls interlinked such that movement of either control varies the degree of adjustment effected by a given movement of the other control. A control pedal 16 is coupled by a linkage 20, 21 to a lever 28 which actuates a lever 33 connected to the swashplate by a linkage 17 through a pair of links 29, 30 connected by a pin 31 constrained by a link 35 to move about a pin 37 at the end of lever 36 adjustable about a pivot 27 by a linkage 25, 26 actuated by a hand control lever 15. Either control can be used to adjust the swash-plate angle, its sensitivity being determined by the setting of the other control which may also be used to determine the direction of drive.
Patent GB-109216-A (GB)
Title: Starting Device for Internal Combustion Engines.
Inventor: SANDBO ANTON IVER
IPC: F02N3/02
Filed: 1917-03-24
Abstract: 109,216. Sandbo, A. I. March 24, 1917. Turning-gear.-A gear-wheel 5 on the crankshaft of a motor 2 is adapted to be engaged and rotated by a pinion 7 on a shaft 8 rotatable in bearings in a frame 10, which is pivotally mounted on a bracket 12 on the motor. The pinion is swung into gear with the wheel 5 by means of a rod 13 pivoted to the frame 10 and passing through the dash 14, where it is provided with a head 17 rotatable in engagement with a cam 15, Figs. 1 and 5, in order to move the rod 13 longitudinally. Rotation of the pinion is effected by pulling a belt 39 by means of a handle 40 on the dash. The belt is wound on a spring drum 21 carrying pivoted dogs 20 held by springs 24 in engagement with a ratchet-wheel 18 keyed on the shaft 8. In order to prevent damage on back-firing, the dogs 20 have pivoted at their outer ends spring-controlled pawls 27 in engagement with teeth on the inner face of a ring 30 secured to an arm 31 of the frame 10. In the event of back-firing, the pawls 27 are moved inwards to the position shown in broken lines in Fig. 3, withdrawing the dogs 20 from the ratchet 18. An ordinary starting-handle 4 is provided.
Patent GB-881306-A (GB)
Title: Automatic locking device for the lateral withdrawal of a log sawing machine
IPC: B27B29/08
Filed: 1958-02-11
Abstract: 881,306. Sawing. BRENTA, L. Feb. 11, 1958 [Feb. 13 1957], No 4395/58. Class 145. In a log saw having a saw carriage withdrawable laterally during the return stroke to disengage the blade from the log, the withdrawal mechanism is locked during the cutting stroke so that it is not caused to operate inadvertently by sudden changes in the speed of the saw carriage. The saw carriage has a girder 9 connected to a rack 10 or cable driven through a hydraulic, electrical or mechanical speed changer and stops 11, 12 fixed on the girder have limited movement between cross beams 3, 4 on the carriage. On the return stroke, the movement of the stop 12 to the cross beam 4 swings levers 13, 14 acting on collars on the wheel shafts 6 and shifts the carriage laterally. On the cutting stroke, after the stop 11 engages the cross beam 3, a locking shoe 21 on a shaft 17 falls into the space between the stop 11 and another stop 22 on the girder so that the girder is locked to the carriage until, at the beginning of the return stroke, struts 20 connected to the shaft 17 and bearing on the carriage rails 8 are moved over centre and pivot the shaft 17 to withdraw the locking shoe 21.
Patent GB-105090-A (GB)
Title: An Improved Appliance for the Filing of Papers, Accounts, Plans, Maps, or the like.
Inventor: SMILLIE JOHN FLEMING
IPC: B42F13/16
Filed: 1916-03-25
Abstract: 105,090. Smillie, J. F. March 25, 1916. Post files.-A filing-device comprises two tubular members b secured upon a base a, the space between their free ends being bridged by a staple c having prolongations d, which may be split lengthways, fitting accurately within the tubes b. One prolongation d may extend through its corresponding tubular member b and the base a, its end being secured by a nut &c. In the modification shown in Fig. 9, the prolongations g are flexible, and the complete filing-device is in the form of a ring. In both forms, the diameter of the staple member is preferably the same as that of the member b or e, so that papers may be moved freely without meeting any projection. Specifications 8580/86, 20586/97, 24636/99, 10494/00, and 51/11 are referred to. Reference has been directed by the Comptroller to Specifications 27994/97, 5303/08, and 25924/13.
Patent GB-398403-A (GB)
Title: Improved process for the production of silicofluorides
IPC: C01B33/10
Filed: 1933-02-14
Abstract: The production of silicofluorides by reaction between a metal and hydrofluosilicic acid is effected in the presence of a metallic catalyst which is more electro-negative than the metal from which the silicofluoride is to be prepared.  In the production of aluminium, cadmium, iron, nickel, and zinc silicofluorides "reduced" copper may be used as catalyst.  In the case of zinc silicofluoride, the use, as catalyst, of "reduced" lead, iron, or tin is also described.
Patent GB-269282-A (GB)
Title: Improvements in or relating to sole-laying presses for use in the repair and manufacture of boots and shoes
IPC: A43D25/06
Filed: 1926-02-17
Abstract: 269,282. Johnson, F. Feb. 17, 1926. Sole-laying. - In a sole-laying press, the sole support comprises a bag of French chalk, powdered graphite, or like substance 4, and this support rests on a base which is horizontally movable relatively to the remainder of the press, and has a yielding central portion and a rigid outer portion. In operation, the support first roughly shapes itself to the work, whereupon the marginal portion of the support is held up to the work to provide the greatest pressure at the sole margin. The support may be a canvas bottle having a mouth normally closed by a cord, and reinforced by a leather pad 6 on its upper side. The base may comprise an outer section 2 secured to a backing 8 provided at its central portion with a pad 7 of sponge rubber adapted to engage a rigid inner section 1, a second pad 5 being interposed between the inner and outer sections and the bag. Alternatively, the yield of the inner section may be limited by the closing of a compression spring or by a shoulder on the outer section. Specification 265,718 is referred to.
Patent GB-774690-A (GB)
Title: Improvements in or relating to electrical connectors for use with sparking plugs andlike ignition apparatus
Inventor: SHOOBERT GEORGE WILLIAM
IPC: H01T13/04
Filed: 1954-02-16
Abstract: 774,690. Two-part couplings. K.L.G. SPARKING PLUGS, Ltd. May 16, 1955 [Feb. 16, 1954], No. 4556/54. Class 38 (1).  A sparking plug connector comprises a ceramic elbow 10 provided with contacts 13, 14 connected by a flexible conductor 15 on which are threaded steel balls 15 which transmit the thrust of a spring provided on the cable termination biasing contact 14 towards contact'13 and maintaining it in good engagement with a sparking plug terminal, a part 11 securing the connector to an earthed part of the sparking plug. In another embodiment (Fig. 2) a wire helix 58 replaces the steel balls, one end of the helix abutting a member 59, and a spring 61 is provided between contact 54 and the member 59 to bias the member 59, the helix 58 and contact 55 towards the sparking plug, a sleeve 62 limiting such movement.
Patent GB-1413351-A (GB)
Title: Tea
IPC: A23F3/06
Filed: 1973-01-30
Abstract: 1413351 Tea UNILEVER LTD 30 Jan 1973 [31 Jan 1972] 4556/73 Heading A2B Unfermented tea is contacted with tannase and subsequently converted to black tea in the presence of natural tea enzymes. The tea may be in the form of a slurry of preferably fresh tea leaf, the contacting with tannase being effected under anaerobic conditions, and the conversion under aerobic conditions, the enzymes being provided by the tealeaf, whereafter the product may be separated into a black tea extract and a leaf residue, which latter may be extracted with water, the resulting extract being combined with the first extract. Alternatively the tea may be in the form of a green tea extract, the tannase being immobilised on a solid support, and the conversion effected in the presence of added enzyme, which may be similarly immobilised. The extracts may be dried to give an instant tea powder.