baber/WOPTO huggingface dataset:
Patent GB-417485-A (GB)
Title: Improvements in and relating to electrical clocks
IPC: G04C1/06
Filed: 1933-10-26
Abstract: 417,485. Illuminating dials and scales. MOME, M., 36, Caulaincourt, Paris. Oct. 26, 1933, No. 29716. [Class 106 (iv).] Illuminating, means for.-The dial 106 of the clock has attached to it a reflecting ring 104 and light from the lamp 102 is reflected round the ring and on to the dial as shown by dotted lines. Instead of the ring an annular glass rod may be used.
Patent GB-790482-A (GB)
Title: Thrust mechanism for the guide rails of mining apparatus
IPC: E21C35/14
Filed: 1954-10-15
Abstract: 790,482. Pushing jacks. DEMAG AKT.- GES. Oct. 15, 1954 [Dec. 9, 1953], No. 29722/54. Class 78 (3). Thrusting mechanism for the guide rails 2 of mining apparatus 1, e.g. conveyers or coal ploughs which are moved along the face 3 of a mine working, comprises a double-acting hydraulic jack 4, 5 in which the cylinder chambers 4a, 4b are each connected to both a pressure pipe 10 and a return pipe 11, and crosswise operating valve gear (not shown) which ensures that either valve 10a or 11b or valves 10b and 11a are open so enabling the piston 5 to force water back into the pressure pipe 10 when the mining apparatus passes the thrust mechanism. A relief valve (not shown) is provided adjacent the pump to allow water to return from pipe 10 to pipe 11. The jack is mounted on an extensible distance piece 7, 8 provided with a reaction strut 9.
Patent GB-953568-A (GB)
Title: Improvements in or relating to radiant heaters
Inventor: SAPONARA DOMENICK
IPC: F23D14/14
Filed: 1961-08-17
Abstract: 953,568. Radiant gas burners; grilling stoves. CALORIC APPLIANCE CORPORATION. Aug. 17, 1961, No. 29785/61. Headings F4T and F4W. A radiant burner comprises a head 10 having an opening covered by an outer radiating corrugated screen 28 to ensure radiation in different directions, the apices of the corrugations contacting an inner screen 30. The distances between the apices of the corrugations on the opposite sides of the outer screen are greater than the combined thickness of the inner and outer screens. The embodiment shown is suitable for the broiling compartment of a gas cooking stove and includes a further inner screen 26, all the screens 26, 30 and 28 being of dihedral form. The inner screen 30 is of coarse mesh and the further inner and the outer screens are of fine mesh, the three screens being secured in place by a thin strip 36 screwed to the rim 32 of the burner head. The inner screens serve to prevent the temperature in the burner head cavity 12 rising above the flash point of the combustible mixture supplied to the burner. Air and gas are supplied through a mixing chamber 14 of Venturi form to the cavity 12 which is provided with a perforated baffle 20 to aid uniform distribution of the mixture over the screens. The flow capacity of the Venturi is about twice as great as that required for a ported open flame burner of comparable output to ensure an adequate supply of combustion air and the capacity of the cavity 12 is large compared with the flow capacity of the Venturi in order to maintain a relatively low pressure in the burner head to aid the entraining of combustion air when gas is supplied under low pressure. The burner may also be used in the grilling compartment of cooking stove, Figs. 4 and 5 (not shown), or in a space heater.
Patent GB-600877-A (GB)
Title: Improvements in and relating to calculating apparatus
IPC: G06G1/00
Filed: 1945-11-08
Abstract: 600,877. Calculating-apparatus. WATTS & SON, Ltd., E. R., and BAKKE, A. B. Nov. 8, 1945, No. 29836. [Class 106 (i)] Calculating apparatus for navigation comprises one bar upon which is pivoted a second bar which is slidable longitudinally in relation to the pivot, the first bar having a stretchable scale of rubber or other elastic material. As shown, the apparatus comprises a rigid bar 1 in a longitudinal recess of which is provided a stretchable rubber scale 10 anchored at its zero point and which has its other end carried on a roller 12 which can be turned by knobs 14. Pivoted to this bar is a second bar 15 with a longitudinal slot 16 by means of which it may be moved in relation to the pivot 17. This bar terminates in a circular ring 18, upon which is pivoted a compass rose 19. A wind bar 20 is pivoted to the rose 19 and the friction is such that the bar 20 may be used to rotate the rose 19. The rose 19 is rotatable within the ring 18 under the action of a clamping device 27.
Patent GB-920226-A (GB)
Title: Improvements in tables and like articles of furniture
IPC: A47B31/06
Filed: 1960-08-30
Abstract: 920,226. Furniture combinations. L. L. CLARK. Aug. 30, 1961 [Aug. 30, 1960], No. 29852/60. Class 52 (3). [Also in Group XXXII] A combined table and seats which may also be used as a roof rack for a motor vehicle comprises a top structure 1 with rectangular framework 3 having tubular members 5 to which can be connected; by bayonet joints, leg members 2 provided with seats 11, and a wooden top 6. In a modification (Fig. 2) tubular legs 27 are fitted into members 5 and legs 2 are fitted in to intermediate members 25. When used as a roof rack the frame 3 is inverted, stubs 19 carrying rubber pads 32 are fitted into members 5 and the other ends of members 5, 25 are fitted with rubber caps 29, the rack being held in place by clips 31.
Patent GB-1516729-A (GB)
Title: Apparatus for monitoring the pressure in body cavities or portions
IPC: G21H5/00
Filed: 1975-07-16
Abstract: 1516729 Measuring pressure HITTMAN CORP 16 July 1975 [16 July 1974] 29906/75 Heading G1L Apparatus for monitoring pressure in a body space e.g. an intracranial cavity comprises pressure responsive means 11 which transmit the pressure to a housing 10 containing a radio-active source 29 and shielding 61, to change the relative position of the source and shielding to produce an output from the source proportional to the pressure. The source is mounted on Ni bellows 32 and the means 11 are connected to the space outside the bellows by a Ti tube 22. The space within the bellows is connected to another pressure sensor 47 responsive to ambient pressure. As body pressure increases the source 29 is moved away from shielding 61 and radiation, measured by a nuclear counter or crystal detector, increases. The pressure sensors 11, 47 are oil filled.
Patent GB-715775-A (GB)
Title: Operating mechanism for the brakes of agricultural tractors and the like
IPC: B60T7/02
Filed: 1951-12-21
Abstract: 715,775. Controlling vehicles. WAINWRIGHT, E. S. Dec. 18, 1952 [Dec. 21, 1951], No. 29942/S1. Class 79(5) [Also in Group XXXIV] In locking means for the operating mechanism of brakes for tractors and for other suitable vehicles or purposes, a casing 1 is adapted to be secured to a vehicle 2 and is provided with a pivot 6 on which is mounted one end of a hand lever 8 and one end of a link 10, the opposite end of the link being articulated to a second lever 11 whose opposite end is articulated to a ratchet 12 adapted to be pivotally attached to the brake pedal lever 4A of the vehicle, and resilient means 13 is interposed between the hand lever and the link in such a manner that when the hand lever is moved .to the " on " position the resilient means 13 actuates the link 10 and the second lever 11 to operate the ratchet for engagement with the usual rack 5, provision being made for retaining the hand lever in the " on position. When the vehicle is being driven, the hand lever 8 is in the " off " position with the ratchet 12 tilted back out of engagement with the rack teeth 5 and the brake may be intermittently operated in the normal manner. When it is required to lock the brake in the " on " position, the lever 8 is moved to the position shown in the figure which causes the link 10 to be lifted by spring 13 and to tilt the upper end of ratchet 12 into the forward position, following which the pedal 4 and the brake lever 4A are depressed and the ratchet 12 automatically engages the rack 5 thus holding the brake in its applied position. Provision is made for retaining the lever in the " on " position by an appropriately notched gate 7A in the casing 1 and spring 9 is provided to assist in returning the lever 8 to the " off " position; in which position a slight pressure on the brake pedal is sufficient to cause the ratchet to release itself from the rack.
Patent GB-1186069-A (GB)
Title: Electromagnetic Auxiliary Jack Selection Device for Circular Knitting Machines
Inventor: ZAHRADKA PAVEL
IPC: D04B15/78
Filed: 1967-06-29
Abstract: 1,186,069. Knitting-machines. ELITEXZAVODY TEXTILNIHO STROJIRENSTVI, GENERALNI REDITELSTVI. 29 June, 1967 [1 July, 1966], No. 29984/67. Heading D1C. An electromagnetic patterning device for a rotary circular machine comprises an electromagnet 15 arranged below the level of the selector jacks 3 for selectively lowering them so that a butt 4 enters a cam slot 12. Butts of selected jacks are thereby pushed into the cylinder out of the range of a lowering cam (16 Fig. 3 not shown) which acts on the remaining butts to push them below a lifting cam (17). Selected jacks are raised by the lifting cam.
Patent GB-1536927-A (GB)
Title: Subordinate transceiver station with synchronized transmitting means for duplex operations
IPC: H04B1/40
Filed: 1976-07-19
Abstract: 1536927 Transceivers THOMSON-CSF 19 July 1976 [21 July 1975] 30043/76 Heading H3A In a transceiver including an antenna 301, a microwave oscillator 302 and a mixer 306, the centre frequency of the mixer output signal is stabilized by a main control circuit including a controlled generator 303 having a nominal frequency F and a comparator 305-309 providing indicative of the phase difference between signals derived from the mixer and generator outputs and is applied to a control input of the oscillator and an auxiliary control circuit 1306-1309 mixes the antenna received signal with a multiple of the generator 303 output frequency and controls the generator frequency via control devices 320, 321. The control device 320 may be a phase comparator or an envelope detector as in Fig. 3 (not shown). The oscillator 302 may be modulated by a signal applied at 313.
Patent GB-897462-A (GB)
Title: Improved method of producing a liquid fishy food
IPC: A23J1/04
Filed: 1959-09-03
Abstract: A liquid food is produced from fish or fish offal by reducing it to a pulp, acidulating the pulp successively with hydrochloric acid to a pH of about 6,5, sulphuric acid to a pH of about 5 and formic acid to a pH of about 4, there being a 10-20 minute interval between each acidulation during which the mixture is stirred, allowing the mixture to stand until it liquefies, usually for between 24 and 48 hours, while stirring every few hours, e.g. for 10 to 20 minutes every four hours, all the acidulation and stirring stages being carried out between 5 DEG  and 40 DEG C., and then raising the temperature to above 40 DEG C., separating off fish oil and adding to the resulting residue formic acid in a total quantity of not more than 2% to give a pH of 3-4.  The acidulation and stirring stages, are preferably carried out at about 35 DEG C., the separation of the fish oil and subsequent stages at about 45 DEG C.
Patent GB-1429878-A (GB)
Title: Synchronous dynamoelectric machine arrangement
IPC: H02P9/04
Filed: 1973-06-25
Abstract: 1429878 Starting prime movers WESTING- HOUSE ELECTRIC CORP 25 June 1973 [13 July 1972] 30068/73 Heading H2H In an electrical power plant wherein a dynamo-electric machine is driven by a prime mover, a machine which normally serves as the exciter for the dynamo-electric machine is used as a motor to start the prime mover. A power generating plant includes a gas turbine 10 driving a unit 30 comprising the rotors 15, 18 of an A.C. generator 11 and its exciter 12 respectively by means of a shaft 13, the power output being taken from the stator 14 of the generator 11. To start the turbine 10, switches 20, 25 are closed such that the stator 17 of the exciter 12 is supplied from an A.C. supply 19 so that the exciter functions as a motor to run up the turbine 10, the speed of run-up being controllable by a control unit 26 and a resistor 24. When the turbine 10 reaches a self-sustaining speed, switches 20, 25 are opened and switches 22, 27 closed whereupon the exciter stator 17 is supplied from a D.C. source 21 and the output of the exciter is rectified by a bridge rectifier 28 and supplied to the rotor 15 of the A.C. generator 11. In a second embodiment the rectifier bridge 28 is built into the unit 30 so as to be rotated by the shaft 13 in which manner the rotor 15 is excited without the use of slip rings and brushes. In this embodiment a switch is provided in the connections between the rotor 18 and the rectifier bridge 28, and this switch may comprise thyristors or a centrifugally operated switch. In a third embodiment the rotor 18 of the exciter is provided with two sets of windings, one of which is used when the exciter 12 functions as a motor and the other of which serves when the exciter is being used as such. Alternatively the generator 11 may be replaced by a machine such as a synchronous condenser.
Patent GB-675004-A (GB)
Title: Pneumatic drill
IPC: E21B1/30
Filed: 1949-11-24
Abstract: 675,004. Percussive drills. EVANS, O. (Demag Akt.-Ges). Nov. 24, 1949, No. 30207/49. Class 124. [Also in Group XXVI] In a pneumatic percussive drill the piston has a diameter more than twice its stroke, the air distributing valve is mounted centrally at the rear of the cylinder and a recoil ring protecting the twist mechanism is mounted in front of the piston. As shown, a differential piston 3 has a larger diameter D two and a half times the stroke H, an extension 20 with rifling grooves 19, and a reduced portion 22 of the extension with straight grooves 21, the difference in diameter in the grooved portions being twice the depth of the straight grooves. A recoil ring 27, fitted between the nose piece and a liner 28 carrying a ratchet and pawl twist mechanism, may act as a cushion or may have cushioning rings fitted on either side. Two pins 30 projecting laterally from the body 1 may be fitted to a U-shaped spring member 31 carrying a feed cylinder comprising a compressed air cylinder 33 and a piston 34. Compressed air. may be introduced through a channel 36, thus forcing the piston outwards. The handle 37 may be provided with cushioning means.
Patent GB-153011-A (GB)
Title: Improvements in and relating to spring suspensions for vehicles
IPC: B60G11/36
Filed: 1920-10-26
Abstract: 153,011. Hassler, R. H. Aug. 19, 1913, [Convention date]. Spring shackles.-Relates to spring suspensions comprising a laminated spring 14, Fig. 1, connected at one end to a lever 18 and an auxiliary helical compression spring 30 mounted between the free end of the lever and the laminated spring. According to the invention, the ends of the helical spring 30 are mounted in dished caps 25 provided with trunnions 24 which work in bearings 22, 29 on the forked end of the lever 18 and bracket 26 respectively, the arrangement being such that the portions of the caps 25 against which the ends of the spring 30 bear are farther apart than the trunnions. By this arrangement, the ends of the spring 30 are prevented from jumping out of place, and a purely axial thrust is transmitted to the spring. To facilitate assembly, the spring 30 is temporarily compressed by a removable T- headed bolt 36, Fig. 8, inserted through slots 33 in the caps 25 which are pressed towards each other by a nut 37. In a modification, the spring 30 mav be arranged between the end of the lever 18 and the frame bracket 13.
Patent GB-1125083-A (GB)
Title: Lifting apparatus
IPC: B66F7/04
Filed: 1966-07-06
Abstract: 1,125,083. Garage lifts; lifting apparatus. J. G. IBBERSON. 23 June, 1967 [6 July, 1966], No. 30294/66. Headings B8B and B8H. In a lifting apparatus (e.g. for lifting vehicles) comprising a pair of side frames 2 connected together by cross beams 4, a vertical fluid ram 6 is mounted on each side frame and the two rams are selectively operable either to move in unison, in which case they are interconnected by detachable load supporting members 13, or to move independently, in which case one ram drives a crane carriage along the cross beams 4 and the other ram controls a load supporting cable depending from the carriage. Fig. 2 shows the case in which the rams 6 move in unison, and each is coupled to a cradle 11 roller guided along the open girder construction frame 2, catches 14 being provided to prevent accidental lowering of the cradles. Each frame 2 is mounted on wheels 5 for mobility but is jacked up during operation. In the embodiment of Figs. 5 and 6 (not shown) the cradles are operated by ropes or chains which are attached at their ends to the cradles and the side frames, and intermediate their ends pass over roller pulleys on the side frames and the rams such that the movement of the cradles is twice that of the rams. In the case in which the rams move independently, Figs. 3 and 4 (not shown), the load is lifted by a hook on the depending cable and the carriage is moved by cable transmission from the associated ram.
Patent GB-247341-A (GB)
Title: A device for supplying disinfectant to water closets, urinals and the like
IPC: E03D9/03
Filed: 1924-12-18
Abstract: 247,341. Harrop, D. F. Dec. 18, 1924. Closets, urinals, &c., disinfecting.-Relates to apparatus associated with the flush-pipe for supplying a charge of disinfectant to the flush water. During the flush, water is received by a scoop b<2>, Fig. 2, and passes through pipes b, b<3> into a chamber B which overflows into a disinfectant container A. When the flush has passed, the water flows back from the chamber B, and disinfectant is withdrawn from the container A through pipes a<1>, b until the level reaches that in the chamber B. Regulating valves a<2>, b<5> are provided. In a modification the chambers A, B, Fig. 3, are mounted in a vessel F so that they are placed in communication by the inflow of flushing water, and a charge of disinfectant passes through a hole b<4>, which is kept clear by a wire loop b<x>. The scoop b may be formed on the end of a tube b<6> provided with an opening b' and turned by a turned knob b<8> fitted with an indicator b<9>. Alternatively a regulating valve may be located at the bottom of the pipe b<3>.
Patent GB-537584-A (GB)
Title: Improvements in or relating to thread winding machines having a plurality of windingspindles
IPC: B65H67/048
Filed: 1939-11-22
Abstract: 537,584. Winding threads. SCHARER, K. J., (trading as MASCHINENFABRIK SCHARER). Nov. 22, 1939, No. 30549. Convention date, Feb. 25. [Class 120 (ii)] In a thread winding machine having a number of winding spindles on a rotatable carrier by turning which a full bobbin is moved from the winding position and an empty one into that position, each spindle as it is moved into the winding position at which the carrier rests, are each then operatively engaged with a common driving shaft, the engagement being effected by a relative movement between the shaft and the winding spindle. As shown the driving spindle 22 is moved axially into engagement with the winding spindle 1, when the carrier 35 has carried the spindle into the winding position, by a spring 28 and is moved out of engagement with the spindle 1 by a cam actuated lever 27; the spindle 22 carries a driving head 29 which frictionally engages a disc on the end of the spindle 1 which is mounted in a ball bearing in a sleeve fixed in the carrier 35 and carries a sleeve 32 which closes the end of the ball-bearing sleeve and shields the inner end of the winding spindle and the bobbin carried thereby. The winding spindles may carry heads between which and counter heads the bobbins are inserted ; the winding spindles and driving spindle need not be arranged co-axially.
Patent GB-1169472-A (GB)
Title: Oscillator Circuit.
Inventor: HART OLIVER PHILIP
IPC: H03B5/12
Filed: 1968-06-26
Abstract: 1,169,472. Transistor oscillator circuits; frequency control. RADIO CORPORATION OF AMERICA. 26 June, 1968 [26 June, 1967], No. 30556/68. Headings H3A, H3R and H3T. In an oscillator the frequency is controlled by a control voltage applied to one gate of an insulated double-gate F.E.T. The F.E.T. has gate 14 connected to drain 18 via the tuned circuit including variables, inductor 38 and capacitor 46. The other gate 16 is biased by a frequency control voltage which could be from an automatic frequency control. Careful selection of this bias variation enables the frequency, but not the amplitude, of the oscillation to be changed.
Patent GB-883369-A (GB)
Title: Improvements in or relating to an apparatus for shielded arc welding
IPC: B23K9/29
Filed: 1959-09-08
Abstract: 883,369. Welding electrode holders. REEH. O. Sept. 8, 1959 [Sept. 29, 1958], No. 30694/59, Class 39(3) [Also in Group XXII] In an arc torch for gas shielded arc welding a normally closed manually actuated valve in the torch handle controls the supply of gas to the gas nozzle. Shielding gas from an inlet 6 is passed through a passage 30 and a constriction 18 to the head 11 of the torch under control of a pinch valve 25 actuated by a spring-loaded lever 20 having a portion projecting from the insulated casing 31 of the handle. A reservoir 10 communicates with the passage 30 between the constriction 18 and the valve 25 and has a pressure operated switch 33 which controls the welding current. This ensures that shielding gas emerges from the nozzle 14 before the switch 33 closes and for a period of time after the switch opens. The torch head 11 is welded to an adaptor 16 attached to the handle 31 and the head 11 and adaptor 16 are surrounded by perforated casings 15, 32 providing spaces for air cooling. The adaptor 16 may have an internal thread to increase cooling by the shielding gas. In a modification the head is in the form of a contact and guide tube for a consumable electrode. In other modifications the torch is water cooled and the valve is actuated by a one-armed lever. The switch 33 may control the supply of cooling water.
Patent GB-1326350-A (GB)
Title: Vehicle steering systems
IPC: B62D7/14
Filed: 1971-06-30
Abstract: 1326350 Vehicle steering TATRA NARODNI PODNIK 30 June 1971 [6 Aug 1970] 30713/71 Heading E7H A vehicle has tandem axles the wheels 2, 2a, 2b, 2c of which are steered by means of a steering box 3, drop arm 4 and drag link 5 which is connected to a steering booster 8. Booster 8 is connected to a two-armed lever 6 which is pivotable in a horizontal plane and carries at its ends tie rods 9, 9a, 9b, 9c which operate the steering arms 10, 10a, 10b, 10c of the wheels.
Patent GB-638532-A (GB)
Title: Compounds of metacresol and 2:6-lutidine
Inventor: CISLAK FRANCIS EDWARD
IPC: C07C39/07
Filed: 1947-11-19
Abstract: An addition compound of m-cresol and 2 : 6-lutidine which is used in the separation of m-cresol from p-cresol, is formed by adding 2 : 6 lutidine to m-cresol or to a mixture of m-cresol and p-cresol, containing a predominance of m-cresol, at a temperature sufficiently low to give crystals of m-cresol-2 : 6-lutidine.  The reaction mixture is preferably cooled to below -55 DEG  C.  Purified m-cresol may be recovered from the addition compound by distillation or by decomposing with aqueous caustic soda. Preferably an excess of 2 : 6-lutidine is employed.  In an example: 2 : 6-lutidine is added to a mixture of m- and p-cresol, crystals of m-cresol-2 : 6-lutidine are separated and fractionally distilled to give m-cresol.  Specification 638,533 is referred to.