baber/WOPTO huggingface dataset:
Patent GB-1092366-A (GB)
Title: Reversible hydraulic transmission arrangements
IPC: F16H61/46
Filed: 1964-11-26
Abstract: 1,092,366. Hydrostatic transmission. S. REIS. Nov. 26, 1964 [Dec. 13, 1963]. No. 48185/64. Headings F2C and F2D. In a hydrostatic transmission for a motor vehicle wherein a variable displacement pump A delivers through a forward-neutral-reverse valve C to a motor B, the displacement of the pump A is adjusted by a double-acting hydraulic motor D in response to the pressure in the fluid circuit and to a pressure produced by a piston and cylinder 34, 35 in response to engine speed or engine manifold depression. The piston 6 of the motor D is urged by a spring 10 to the position shown in which the pump displacement is zero. The pump supply and return lines 59, 57 are connected through branch lines 30, 32 to the opposite ends of a pilot valve E, the spool 17 of which is urged by a spring 23 to the position shown in which it connects the line 30 through ducts 27, 26 to the chamber 12 of the motor D and connects the cylinder 34 through lines 38, 29 to the chamber 13 of the motor D. During starting increased engine speed or reduced manifold depression moves the piston 35 downward to produce a pressure in the chamber 13 which moves the piston 6 left to increase pump displacement, until the pressure in the chamber 13 balances the force of the spring 10 and the pressure in the chamber 12. Thereafter the motor D automatically adjusts the displacement of the pump A in response to pressure changes in the hydraulic circuit and to changes of engine speed or engine manifold depression. On overrun of the motor B the pressure in the line 32 moves the pilot valve spool 17 left to connect the cylinder 34 to the chamber 12 and to connect the line 32 to the chamber 13 whereafter the pump displacement is adjusted during overrun in response to changes of pressure in the line 32 and to changes of engine speed or engine manifold depression. A reservoir H supplies make-up fluid to the cylinder 34 and through a shuttle valve G to the low-pressure fluid line 57 or 59. High-pressure relief valves 84. 85 are provided between the lines 57, 59.
Patent GB-1432909-A (GB)
Title: Locking device stay for supporting the collar of a garment and a combination of a  garment and such a stay
IPC: B60R22/38
Filed: 1974-11-07
Abstract: 1432909 Locking reels INSTRUMENT VERKEN AB 7 Nov 1974 [12 Nov 1973] 48319/74 Heading A3V A locking device for a safety belt reel includes two apertured plates 4, 5 on the end 3 of the reel shaft and arranged to engage a fixed tooth ring 17 if the belt is rapidly withdrawn. The apertures 6 in the plates are trapezoidal and just fit over the rectangular end of the shaft. The plates are joined by a pin-slot connection and held in a rest position by a plate and spring engaging the slotted end of the shaft. Rapid belt withdrawal locks the plates 4, 5 and hence the reel shaft.
Patent GB-1278065-A (GB)
Title: Improvements in or relating to clasp knives
Inventor: HACKWOOD ERNEST
IPC: B26B11/00
Filed: 1968-10-11
Abstract: 1278065 Pocket knives GEORGE IBBERSON & CO Ltd 7 Oct 1969 [11 Oct 1968] 48420/68 Heading B4B A clasp knife comprises a handle 10 formed from a pair of scales 20, 24 between which a marline spike 12 is pivoted and held in its open or closed position by means of a back spring 29, and a locking member including a cam 34 and a lever 32, the lever being movable when the marline spike is in its open or closed position, to cause the cam to bear on the back spring and prevent deflection thereof whereby the marline spike is locked in its open or closed position. The marline spike may be made from squaresectioned material as shown tapered to a point or from round section material provided with flats at the pivot point. A central scale 22 separates a knife, blade 14 from a slotted member 16 for tightening or loosening a shackle screw; the end 28 of the scale 22 may be used as a screwdriver. The lever 32 may be provided with a hole 44 for connection to a lanyard.
Patent GB-1188520-A (GB)
Title: Method of making an Electrical Connection to a Flexible Printed Circuit
Inventor: NEVETT LESLIE JAMES
IPC: H01R12/55
Filed: 1966-10-28
Abstract: 1,188,520. Two part couplings. JOSEPH LUCAS (INDUSTRIES) Ltd. 16 Oct., 1967 [28 Oct., 1966], No. 48427/66. Heading H2E. Connection to a flexible printed circuit 11, having a conductive layer 12 sandwiched between insulating layers 13, is made by forming a hole 15 in an area 14 of the conductive layer exposed on both faces, the exposed area being provided with slits 16 to form flaps 17, so that when a pin 18 having a conical end 19 is inserted into the hole, the flaps 17 are electrically engaged with the conical surface of the pin. Pins 18 may constitute the terminals of a vehicle ignition switch which is secured by an integral threaded spigot and nut to a facia panel on which the printed circuit is located (Fig. 3, not shown). In another embodiment (Figs. 4, 5, not shown) the pin includes a cylindrical shank (32) having an outwardly directed flange (33) in one end with a concave shoulder (35) being formed between the shank (32) and the flange (33) while the other end of the shank is provided with a tapered portion (34). The flexible printed circuit in which the pin is to be engaged is placed over a base (36) having a tapering bore (37) and an area of the flexible printed circuit comprising flaps exposed on one side only lies above the bore. When the pin is inserted through the exposed area, the flaps, which have previously been bent down out of the plane of the printed circuit, are trapped between the pin and the bore of the base.
Patent GB-1055210-A (GB)
Title: Improvements in or relating to arithmetic units for calculating the root of a number
IPC: G06F7/46
Filed: 1964-11-30
Abstract: 1,055,210. Square root computers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 30, 1964 [Nov. 29, 1963], No. 48668/64. Heading G4A. An arrangement for calculating the square root of number employs a method in which the numbers of the sequence 0, 1, 1, 2, 2, 3, 3, 4, 4 &c. are successively subtracted until a negative remainder is obtained. To obtain the square root of a multi-digit number, (1) the number is divided into pairs of digits starting from the right-hand side, (2) numbers from the above sequence are subtracted successively from the left-hand (first) pair of digits until a negative remainder is obtained, (3) the remainder is restored to its last positive value for an even number of subtractions, (4) the last number of said series which after subtraction gave the said last positive remainder is stored and used as a root-forming number, (5) the sequence is repeated with the next lower pair of digits of the given number preceded by the last positive remainder, the last stored number followed successive members of the sequence commencing with 0 are subtracted, (6) the process is continued until all pairs of digits have been employed. The method has the advantage over the method of subtraction of successive odd integers, that the required root is formed directly in the last step of the calculation and it is not necessary to provide an additional register to count the number of subtractions. The Specification describes schematically suitable registers (comprising magnetic cores) and control circuits for performing the calculation.
Patent GB-1008798-A (GB)
Title: Scraper device for bulk materials especially in a storage and batching plant for concrete aggregates
IPC: B66D1/80
Filed: 1962-12-27
Abstract: 1,008,798. Drag line scrapers. ETABLISSEMENTS R. PONGE & CIE. Dec. 27, 1962 [Jan. 3, 1962], No. 48669/62. Heading B8E. A scraper for moving piles of aggregates 3, 3<SP>1</SP> from stored areas 9, 9<SP>1</SP> up to a wall comprises at least one bucket 4, 4<SP>1</SP> drawn by a rope 5, 51 driven in opposite direction by drums 12, 12<SP>1</SP> on a hoist. A rope 5, 5<SP>1</SP> passes over pulleys 6, 6<SP>1</SP> mounted on a platform 11, and able to swing about a vertical axis, and pulleys 7, 7<SP>1</SP> mounted on carriages 13, 13<SP>1</SP> movable along a rail 14. The arrangement is such that variations in the tensions in the rope 5, 5<SP>1</SP> cause the carriages 13, 13<SP>1</SP> to move backwards and forwards between stops 38, 38<SP>1</SP> respectively so that the bucket 4 scrapes progressively over the whole storage areas 9, 91. Each carriage 13, 13<SP>1</SP>, Fig. 3, comprises a frame 15 mounting runners 16, 161 and rollers 17, 171 guiding and supporting it on the rail 14 and runners 19, 19<SP>1</SP> engaging a cable 18. The pulleys 7, 7<SP>1</SP> are linked by a member 35 and a parallelogram linkage 33, 33<SP>1</SP>, 30, 30<SP>1</SP> to a split sleeve 20 having frictional surfaces which are normally engaged by rings 22, 22<SP>1</SP> due to the force of springs 36, 36<SP>1</SP> acting on the parallelogram linkage. When the tension in the ropes 5, 5<SP>1</SP> increases as when its direction of movement changes or it contacts the pile 3, 3<SP>1</SP> the springs 36, 36 are extended and the grip of the rolls 22, 22<SP>1</SP> on the sleeve is removed. Due to the component of the force a spring 27 the carriage is moved in the direction 39 before the springs 36, 36<SP>1</SP> restore to the initial position and the sleeve 20 is again gripped. When tension subsequently reduces a similar movement occurs due to the action of the springs 36, 36<SP>1</SP> on the links 30, 301. When a stop 38, 38<SP>1</SP> is reached it contacts the lever 26 to move it over a dead-centre position so that the spring 27 is effective to move the carriage in the opposite direction. In alternative constructions referred to separate drawing ropes may be provided, the pivotal return pulley systems 6, 6<SP>1</SP> and the rail 14 may be omitted while the hand lever 26 may be operated manually. Different arrangements of the split sleeves 20 and the rings 22 are also described.
Patent GB-1114465-A (GB)
Title: Method and device for stamping out dynamo laminations and the like
IPC: B21D28/06
Filed: 1966-11-02
Abstract: 1,114,465. Metal strip feeds; winding and unwinding. STEPHAN-WERKE G.m.b.H. & CO. 2 Nov., 1966 [2 Nov., 1965], No. 49232/66. Headings B3E and B3W. In a method of blanking out dynamo laminations and the like from strip material, the width of which is an integral multiple of the width of the individual parts to be produced, the strip is passed through the same blanking tool with its two ends leading alternately but always in the same direction and between successive passes, the portion of strip to be blanked is guided under the tool by relative transverse displacement between the strip and the tool by an amount equal to the working width of the tool. An apparatus for carrying out the method comprises a press 1 and a stand 4, supporting a beam 5 mounted for rotation about a horizontal axis and having two spindles 6 on which are carried two separately driven reels 7, 8. The end-plates 9 of the reels are axially adjustable. A second stand 10 supports a guide roller 11. Operation.-Strip 13 is drawn from the reel 8, over the guide roller 11, through the tool 3 and is wound-up on the reel 7. The positions of the reels are then inter-changed by rotating the beam 5 about its pivot and the end plates of the reels are adjusted to bring a fresh portion of the strip under the tool. The press and feed drives are controlled by jockey pulleys 15 and 16 mounted on pivotable switch-controlling arms. In a modification, two blanking tools are mounted in a portal-frame press and operate on opposite edges of the strip simultaneously being displaced towards the centre of the strip after each pass. In this case the width of the strip is an odd-number multiple of the component width and on the last pass only one tool operates.
Patent GB-1359916-A (GB)
Title: Relay valve assembly
IPC: B60T8/1761
Filed: 1972-10-25
Abstract: 1359916 Valves; adaptive braking systems BENDIX CORP 25 Oct 1972 [16 Nov 1971] 49263/72 Headings F2F and F2V A compressed air vehicle adaptive braking system incorporates a relay valve assembly 10 having a primary chamber 20 connected by a passage 24 to an operator operated control valve and a delivery chamber 22 connected to one or more brake actuators the pressure in chamber 20 acting on a piston 18 which is actuable on a self lapping valve 36, 40, 46 to control the pressure in chamber 22 to maintain the pressures in chambers 20, 22 at substantially the same level; the assembly 10 also includes a solenoid operated adaptive braking valve unit 12 which in the event of skidding of a vehicle wheel is operable to restrict flow to the primary chamber 20 from the control valve by closure of a valve 74, 76 and simultaneously to exhaust pressure from chamber 20 at a relatively rapid initial rate for a limited time period, and a lower rate thereafter. The unit 12 includes a piston 50 slidable in a bore 52 and having a larger face 56 and a smaller face 60. A passage 80 extends through the piston 50 which passage 80 is normally closed off by a sphere 86 on armature 84 of the solenoid valve 82 but upon a skid being sensed the sphere 86 is moved away from passage 80 to communicate the delivery chamber 20 to a control chamber 58 which is connected to atmosphere via a bleed orifice 72 in the piston 50, a chamber 64 and opening 66. The pressure in chamber 20 is substantially reduced as is the pressure in chamber 22 to relieve braking. The pressures in chambers 58, 20 quickly equalize to cause piston 50 to move downwardly to close valve 74, 76. Passage 24 is cut off from chamber 20 apart from limited communication through an orifice 78 but chamber 20 still communicates with control chamber 58 and a slow reduction in pressure now takes place by venting through orifice 72. This continues until the forces acting on piston 50 balance whereupon valve 74, 76 slightly opens to give a flow into chamber 20 equivalent to flow out of it. When the wheel reaccelerates to a predetermined value, valve 82 is de-energized and the pressure in chamber 20, increases slowly at first by flow through orifice 78 and then quickly as valve 74, 76 fully opens-pressure in chamber 22 increases at a corresponding rate. The self-lapping valve 36, 40, 46 controls communication of a supply chamber 30 connected to a reservoir and an exhaust port 44 with the delivery chamber 22.
Patent GB-1336520-A (GB)
Title: Pistons for interanl combustion engines
IPC: F01P3/10
Filed: 1971-10-22
Abstract: 1336520 Cooling pistons BURMEISTER & WAIN'S MOTOR-OG MASKINFABRIK AF 1971 AS 22 Oct 1971 [23 Oct 1970] 49273/71 Heading F2T A piston comprises a crown I having drilled coolant ducts 13 extending radially adjacent the gas face 9 from a central chamber 12 and communicating at their radially outer ends with drilled coolant ducts 14 extending axially behind the piston ring grooves in a skirt portion 7 and opening at their lower ends in an annular chamber 6. The crown is secured by bolts 5 to the upper end of a hollow piston-rod 3 having passages 17 leading from the chamber 6 to an annular passage 18 formed between the rod and an inlet pipe 16 therein. In use, coolant, which may be oil or water, is circulated from pipe 16 through chamber 12, ducts 13 and 14, chamber 6 and passages 17 to the return duct 18. To facilitate drilling ducts 13 and 14, the topmost corner of the crown 1 may be cut away during manufacture and, subsequent to drilling, closed by a welded-on ring 21, Fig. 2, to form a circumferential duct 23. In a modification. Fig. 5 (not shown), the annular coolant chamber (25) extends to the level of the topmost piston ring. In a further modification, Fig. 6 (not shown), the lower part (27) of the skirt portion is made as a separate ring and welded to the crown.
Patent GB-1439408-A (GB)
Title: Cyclopentane derivatives
IPC: C07C45/67
Filed: 1973-10-24
Abstract: Lactones of the formula <IMAGE> in which R4 denotes H, optionally protected COOH or alkyl, are obtained by hydrolysis of corresponding imino- or hydroxyimino derivatives. The compounds I are intermediates in the preparation of prostaglandins.
Patent GB-1166997-A (GB)
Title: Improvements in and relating to Apparatus for Producing Fertilizers and Agricultural Stock Feed
Inventor: ROBLIN MERVYN GWILYIN GLYN
IPC: C05F3/00
Filed: 1965-11-23
Abstract: 1,166,997. Drying apparatus. HYDRAULIC DEVELOPMENTS Ltd. 13 Feb., 1967 [23 Nov., 1965], No. 49627/65. Heading F4G. Apparatus for producing fertilizer by drying excrement comprises a container 11 housing two superposed chambers formed by annular surfaces 15, 19 on which the excrement is supported whilst being agitated and worked by spring mounted fingers 17, 21 on rotatable arms 16, 20, and the material is dried by the passage of heated air. The air passes from inlets 25 beneath the surface 19 to heat the underneath of the layer thereon, and via a deflector 27 back over the exposed surface of the layer and thereafter by a deflector 28 directed into an annular chamber 31 beneath the support surface 5 to a further deflector 29 into an annular chamber 32 surrounding the material layer on he surface 15 for exhaust through an outlet 30. The material passes from the support surfaces 5, through closable apertures therein (not hown) to a shoot 18 on to the surface 19 which has a greater surface area and therefore is pread as a thinner layer and the dried material passes through closable apertures (not shown) herein to a shoot 22 either for discharge by an auger 23 or to a heated tank or container (not hown) for further treatment. The rotatable arm 20 is also axially reciprocable.
Patent GB-1435740-A (GB)
Title: Velocity modulation tube
IPC: H01J23/20
Filed: 1973-10-25
Abstract: 1435740 Klystrons NIPPON ELECTRIC CO Ltd 25 Oct 1973 [25 Oct 1972] 49750/73 Heading H1D In a klystron having an input resonator circuit 16, at least one first floating resonator circuit 21, at least one second floating resonator circuit-two, 26 and 31, as shown-and an output resonator circuit 36, the conversion efficiency is increased by arranging that the input circuit has a Q value at least equal to that of the first floating resonator circuits and a resonant frequency adjacent the lowest frequency of the passband; the first floating resonator circuits have a resonant frequency adjacent the highest frequency of the passband; and the second floating resonator circuits have a resonant frequency higher than the highest frequency of the passband, and higher than the resonant frequency of the first floating resonator circuits. All the resonator circuits are tunable by plungers, e.g. 18, and the Q of the first resonator circuit 21 is adjustable by connection of a resistor to the coupling loop 24. As described, the Q values of the successive resonators of Fig. 1 are 195, 140, 650, 650, and 5. The resonators may be of extended interaction type, e.g. of coupled cavity construction.
Patent GB-1487886-A (GB)
Title: Hydrostatic transmission control
IPC: B62D11/04
Filed: 1975-02-13
Abstract: 1487886 Hydrostatic transmissions SUNDSTRAND CORP 13 Feb 1975 [13 Feb 1974] 49774/76 Divided out of 1487883 Heading F2W The subject-matter of this Specification is identical with that described in Specification 1487883 but the claims relate to the arrangement of servomotors for adjusting the pump and motor of a transmission.
Patent GB-1326902-A (GB)
Title: Sheet feeding apparatus
IPC: B65H1/04
Filed: 1970-10-21
Abstract: 1326902 Feeding sheets RICOH KK 21 Oct 1970 [15 Nov 1969 (2)] 49888/70 Heading B8R A pile table 1, pivotally mounted on a printing or copying machine 3, is provided with pivotally mounted sheet retaining arms 8 having portions 8a, Fig. 2, which press on the front corners of the pile to prevent double separation. A pivotally mounted member 27b is movable to an operative position to engage projections 8b of the retaining arms and so raise the arms to a position permitting the insertion of a fresh pile. The sheets are separated from the pile by a friction roller 18 which may be raised to position 18A (shown dotted) during pile replacement. The member 27b is lockable in its operative position by engagement of extension 25a with a portion 28a of a lever 28. As the roller 18 is lowered a pin 29 on roller arm 19 strikes extension 28b of the lever 28 and releases the member 27b thus permitting the retaining arms to engage the pile. The table 1 may be pivoted to a raised position causing lever 30a to engage extension 28b and lower the retaining arms.
Patent GB-1280947-A (GB)
Title: A vehicle having a swingable headlight
IPC: B60Q1/05
Filed: 1970-10-22
Abstract: 1280947 Retractable headlamps DR ING hcF PORSCHE KG 22 Oct 1970 [8 Nov 1969] 50112/70 Heading F4R A safety feature for a vehicle having a retractable headlamp 10 comprises a panel 15 defining the opening in the body receiving the lamp, which panel is fixed to the vehicle by means of bolts 28 which yield easily to stress applied to the panel to reduce or prevent injury to a person trapped between the lamp and the panel. These bolts may have a constricted portion on their shanks to allow them to shear easily under stress, Fig. 3, not shown, or may comprise two interconnected sections which can easily separate under stress, Fig. 4, not shown, so that if an object is caught between headlamp 10 and panel 15 when the headlamp is being retracted into the body the bolts 28 shear and panel 15 falls to the bottom of bowl-shaped recess 22. The bolts comprise a cone-shaped end piece which allows them to be easily pushed into position in the appropriate holes during fitting, but resists undesirable loosening after assembly.
Patent GB-1478852-A (GB)
Title: Rail tensioning devices
IPC: E01B29/20
Filed: 1974-08-20
Abstract: 1478852 Tensioning railway rails; clamps GREENSIDE HYDRAULICS Ltd 20 Aug 1974 [27 Oct 1973] 50116/73 Headings E1G and E2A A device for tensioning rails to be welded together comprises a pair of clamping heads 12, 13 each having a fixed jaw 14 and a pivoted movable jaw 15 which is urged towards the fixed jaw by the action of hydraulic rams 16, 18 connected between the two clamping heads. The device may be extended by any number of tie bars 17, 19. Each clamping head, Fig. 3, comprises a pair of spaced plates 20, 21 between which the fixed jaw 14 and movable jaw are mounted. The movable jaw is demountably pivoted about a pin 37, and the jaw plate 44 is pivotally mounted on the movable jaw, Fig. 2 (not shown). The fixed jaw plate 24 is replaceable being secured by screws 25. The clamping heads are releasably connected to the rams or tie bars by clevises.