baber/WOPTO huggingface dataset:
Patent GB-103826-A (GB)
Title: Improvements in Fuel Pumps of Internal Combustion Engines.
IPC: F02D1/00
Filed: 1917-01-25
Abstract: 103,826. Munktells Mekaniska Verkstads Aktiebolag. Feb. 1, 1916, [Convention date]. Cam-actuated pumps; stroke, varying. - In a fuel pump for internal-combustion engines the cam disk 5 actuating the plunger 2 is provided with a member movable in a radial direction by a governor, for the purpose of varying the suction stroke. In one form, the cam consists of a circular disk 5 with a flat portion 21 on its periphery, and the controlling-member consists of a plate 6 pivoted at 7 to the cam and connected at the other end to the cam by a spring 8. The side 22 of the plate 6 is formed as an arc of the same radius as the disk 5, so that in its extreme position it comes into alinement with the circular periphery of the disk 5 and the pump stroke is reduced to zero. The plate 6 is moved by a wedge 9 movable between the cam shaft and the plate by a governor. In the Specification as open to inspection under Sect. 91 (3) (a) it is stated that the member 6 may be replaced by a member rotatable concentrically to the disk 5. This subject-matter does not appear in the Specification as accepted.
Patent GB-479559-A (GB)
Title: Improvements in or relating to slide guides for milling and other machine tools
IPC: B23Q11/08
Filed: 1937-01-15
Abstract: 479,559. Slide guides. WANDERER. WERKE VORM. WINKLHOFER & JAENICKE AKT.-GES. Jan. 15, 1937, No. 1260. Convention date, Jan. 15, 1936. [Class 12 (i)] One portion of a machine tool slides on two guides carried on another part, each of these guides being of Tee section and the guide surfaces being formed on the arms of the Tee. The detachable surfaces 18 are secured to the Tee 2a, one part 9 of which is adjustable to take up wear. The guide is secured to the machine part by screws 21.
Patent GB-249952-A (GB)
Title: An improved safety device or obstruction remover for motor driven vehicles
IPC: B60R21/34
Filed: 1925-01-15
Abstract: 249,952. Singer, J., and Wortmann. B. Jan. 15, 1925. Safety appliances.-In a catch net, for the front of a motor vehicle, supported on upper and lower arms adapted to move rearwardly and upwardly respectively on encountering an obstacle, the upper supporting arms have elements controlling the lower supporting arms, which elements, when an obstacle strikes against the upper arms which give way in a rearward direction, automatically lift the lower arms to form a pocket in the net. The upper arms 9, Fig. 1, are each pivoted at 10 and are provided with rack quadrants 12 and extensions 14. These extensions are connected by a transverse bar 15 to engage the lower arms 3, which are pivoted at 4a on an extension 5 of a supporting bracket 6, at a point below the pivotal axis. The net 1 is stretched between an elastic member 8 on the arms 9 and a roller 2 on the arms 3, the arms 3 being maintained in contact with the bar 15 by a U-shaped spring 4. The upper arms 9 are hinged at 19 to swing transversely and; are maintained apart by a spring-controlled telescopic tube. On collision with a person, the upper arms 9 are pressed backwardly and locked by a catch 13 engaging in a tooth of the quadrant 12 and the lower arms are raised by the bar 15 to form a pocket in the net. The upper and lower arms are brought together in the out-of-use position by a rope 17 passing over a pulley 18 and en. gaging the roller 2 on which the net is wound. In a modification, Fig. 5, the arms 9, 3 are connected, on one side, by racks 35, 38 engaging a toothed wheel 39 mounted in a housing 41 slidable on the racks against the action of springs- 45, the housing being provided with a rack engaged by a pawl, on the casing 24 which permits automatic movement of the housing 41 in downward direction so as to lock the arms in the tilted position when a person is caught in the net. The arms 9, 3 on the opposite side of the vehicle are connected by a spring-controlled telescopic tube which operates the arms to spread the net from the out-of-use position. The lever arm 32 connected to the arm 9 is longer than the lever arm 36 connected to the arm 3, so that when the arm 9 is pushed back the housing 41 moves bodily downwards, the wheel 39 being locked by ratchet-wheels, to move the arm 8 upwardly through a greater angle than the arm' 9 and thus cause a pocket to be formed in the netting 1. An intermediate arm 70 may be mounted on the same axis as the arm 3 by means of a notched sleeve joint which provides lost motion, the arms being maintained apart by a torsion spring so that in the event of a child falling on the net the arm 70 operates the device in a similar manner to the arm 9. The arms are collapsed by the driver through ratchet-wheels on the spindle of the wheel 39. An hinged extension may be provided on the arm 3 which' swings outwardly on upward movement of the arms.
Patent GB-1272051-A (GB)
Title: Device for improving the homogeneity of a laser beam
Inventor: GUILLET HUBERT
IPC: G02F1/00
Filed: 1970-01-12
Abstract: 1,272,051. Light modulators. COMMISSARIAT A L'ENERGIE ATOMIQUE. 12 Jan., 1970 [28 Jan., 1969; 19 March, 1969], No. 1433/70. Heading H4F. [Also in Divisions G2 and H1] A device for producing a light beam having a substantially uniform radial energy density comprises a light source which emits a beam having a variable radial energy density and an element having a radially variable rotary power in the opposite sense to that of said beam and in which two polarizers are disposed on either side of said element. The density of population inversion produced by pumping a laser rod gives, in the rod, an intense outer shell but a reduced intensity core, so causing inhomogeneity of the beam which may be corrected by passage through an element exhibiting radially variable rotatory power, in the opposite sense to the density of population inversion in the rod. In the device, Fig. 1, polarizers 2, 3, having polarizing planes crossed at 90 degrees are disposed either side of the element, e.g. a Faraday rotator comprising transparent material 4, e.g. lead glass and a solenoid 5 which shows optical rotatory power decreasing from the centre to the periphery. Fig. 2 shows the element as an electro-optical cell, e.g. a Pockels cell, having a crystal of ADP or KDP interposed between annular electrodes 10, 11, the resultant electric field produced has a similar correcting radial variability. Pockels cells containing two crystals divided by a third electrode may also be employed. The device may be used for modulating high amplitude laser pulses.
Patent GB-902613-A (GB)
Title: Improvements in apparatus for coating paper during the manufacture thereof
IPC: D21H23/24
Filed: 1958-01-15
Abstract: 902,613. Coating paper webs; doctor rollers. INVERESK PAPER CO. Ltd., and SMITH, J. F. Jan. 14, 1959 [Jan. 15, 1958], No. 1453/58. Drawings to Specification. Classes 96 and 140. An apparatus for coating paper webs, e.g. by means of a roller rotating in a coating trough, has a doctor roller formed with helical grooves which contact the coated surface of the paper. The doctor roller may be positively driven in or against the direction of movement of the paper and at a speed greater or less than that of the paper. Both sides of the paper may be coated in turn.
Patent GB-1079018-A (GB)
Title: Seat belt retractor
IPC: B60R22/34
Filed: 1966-01-12
Abstract: 1,079,018. Safety harness. R. C. FISHER. Jan. 12, 1966 [March 17, 1965], No. 1517/66. Heading A3V. A seat belt retractor comprises a bracket 14 secured to the floor 11 of a vehicle and having a shaft 26 to which is attached a seat belt 42 which is retracted by a coiled spring 35. The axis of the shaft is inclined to the floor making the retraction suitable for mounting at the side of a seat (12, Fig. 1). The spring 35 acts between the end of the shaft 26 and a spring retainer 31 which is held to the bracket by tabs (33, Fig. 4). A plastics cover 45 is provided for the retainer and held in place by tabs (48, 49, Fig. 2) on the bracket 14.
Patent GB-896712-A (GB)
Title: Die for use in bending flat metal stock and the like
IPC: B21D5/02
Filed: 1959-01-15
Abstract: 896,712. Angular bending. JOHNSON, S. A. Jan. 15, 1959 [Feb. 6, 1958], No. 1521/59. Class 83 (4). A die for use with a punch for bending flat metal stock comprises a body member mounted below the punch supporting a pair of elongate die bars, having flat upper surfaces for supporting such metal stock, for rotation about their longitudinal axes, the bars being disposed side by side below, and one on each side of, the punch, the bars turning as the punch is moved down between them to effect the bending. Semi-cylindrical bars 18, 19, held in grooves 24 in a body member 13 by a strap 26 resiliently pressed by springs 32 across one end of the bars, support a metal sheet S bent by downward movement of a press-brake punch 11 or 11<SP>1</SP>, the bars turning during bending from their initial position with their flat surfaces coplanar. If the sheet S is cut partially across at C the part P<SP>1</SP> extending beyond the cut C and the end of the die is not bent. In a modification, Fig. 10, the ends of the bars 18, 19 are held by straps 26a each carried by a rod 38 extending down between notches in the bars and being resiliently urged downwardly by a spring 41. End caps 44 limit longitudinal movement of the bars. The flat surfaces of the bars may lie above or below their axes of rotation.
Patent GB-1293961-A (GB)
Title: Improvements in or relating to controls for electrical heating devices
IPC: G05D23/24
Filed: 1970-01-13
Abstract: 1293961 Control of temperature, electrically NORTHERN ELECTRIC CO 13 Jan 1970 [12 Feb 1969] 1614/70 Heading G3R A heating element R L  (e.g. electric blanket element) is supplied with half wave D.C. via an SCR 1  (operated in a zero voltage switching mode) from an A.C. source 10, 11. The element also acts as a temperature sensor and is connected in abridge circuit comprising R 2 , R 3 , R 4 , R 5 , R 6  and R L  supplied with half wave D.C. via a diode CR1 and having the base/emitter circuit of a gate signal control transistor Q 1  across its output diagonal. The desired temperature is pre-set by sliders 14, 17. In operation, when R L  is cool, transistors Q 1 , Q 2  are non-conducting and a gate signal is applied to SCR 1  via C 1 , R 8 , CR 4 . The capacitor C 1  advances the phase of the trigger signal (e.g. by 80 degrees) with respect to the A.C. source so that SCR 1  fires substantially on the zero going positive crossing of the A.C. supply. As R L  becomes hotter its resistance increases and the resulting bridge output causes Q 1  to conduct which in turn causes Q 2  to conduct thereby reducing the gate voltage at SCR 1  and preventing firing. Current supply to R L  is thus interrupted. A diode CR 5  across R L  causes a fuse F 1  to blow if SCR 1  should develop a short circuit. Since diode CR 2  in the same arm of the bridge as R L , is ambient temperature sensitive, a diode CR 6  is provided in another arm for temperature compensation. CR 2  and CR 4  prevent the load voltage from affecting the control circuit when SCR 1  is conducting. Diode CR 3  and R 7  pass a signal in phase with the A.C. voltage which signal holds Q 2  "ON" when this voltage goes positive and prevents the SCR from firing when the A.C. voltage is greater than 10 volts.
Patent GB-982669-A (GB)
Title: Improvements in or relating to electron beam generators
IPC: H01J37/305
Filed: 1963-01-14
Abstract: 982,669. Electron beam apparatus. STAUFFER CHEMICAL CO. Jan. 14, 1963 [Jan. 15, 1962], No. 1677/63. Heading H1D. An electron beam generator for an electron beam furnace has an elongated cathode filament 14, Fig. 1, composed of two spaced parallel emissive limbs 16, 17 and energized by an electric current passing in opposite directions in the two limbs whereby a focusing magnetic field is established in the beam direction. The cathode is located within a backing electrode 11 below which is the accelerating electrode 19. The cathode may be U-shaped, as shown, or annular, e.g. to direct electrons into the open top of a casting mould. An externally generated magnetic field may also be applied and the beam may be directed into the top of the mould from above or from below the level of the mould in which case the beam may also be directed initially radially away from the mould. In Fig. 4 an adjustable plate 51 may be mounted on the front of the backing electrode 11.
Patent GB-673188-A (GB)
Title: Improvements in or relating to trimming machines
IPC: B29C37/02
Filed: 1950-01-23
Abstract: 673,188. Cutting - machines. SVIT, NARODNI PODNIK. Jan. 23, 1950 [Feb. 2, 1949], No. 1712/50. Class 31 (i). A trimming machine is provided with a pair of trimming blades, means supporting the blades for relative reciprocatory motion to open and close them, the blades having cutting edges of different curvature in a plane transverse to the direction of reciprocatory motion, together with spring means which maintains the cutting edges in contact during opening and closing of the blades, the said supporting means including means supporting one of the blades for oscillatory motion. As shown in Fig. 4, a rotating shaft 2 reciprocates through eccentrics 6, 7, two links 16, 17. Link 16 is connected to a link 20 which reciprocates with link 16 but is given an oscillating motion relative thereto by means of a helical spring 25 secured at one end to link 20 and at the other end to a bushing 21 held in the frame of the machine (not shown).
Patent GB-1488421-A (GB)
Title: Data signal transmission equipments with automatic gain or attenuation control
IPC: H04L25/12
Filed: 1975-01-15
Abstract: 1488421 Automatic gain control NIXDORF COMPUTER AG 15 Jan 1975 [13 March 1974 24 Oct 1974] 1732/75 Heading H4R In an automatic gain control for a half duplex system in which switching occurs between send and receive operation, an integrating control responds to the level of signal at the output of variable gain device to provide a control signal which is applied to a store. When signals are present on the line the control signal regulates the gain of the device in a normal manner, when the signals are not present on the line the gain control is effected by the stored control signal. As described the signals at the output of amplifier 5 are rectified by the arrangement of amplifiers 61, 62 and fed to an integrator 71, 72 the output of which feeds a storage device 91 via an FET switch 81, the signal on the store controlling the attenuation provided by the resistor/FET network 41 to 44. A threshold circuit comprising Zener diodes 112, 113 and inverter 114 provides a signal which makes FET 81 conductive while signals are passing on the line 1, 2, and opens the FET switch 81 in the absence of signals, so that gain control is effected by the stored control voltage on 91. To prevent the integrator drifting to an abnormal value while no signal is present on the line an amplifier 12 determines the potential difference across the switch 81 and operates integrator control 73 to keep the difference within predetermined limits. While there is no signal on the line the switching control signal is applied, via inverter 13, to short the output line to earch at FET 14. In an alternative arrangement, Fig. 4 (not shown), the integrator 71, 72, forms the storage device and follows the switch 81, eliminating the necessity for comparison amplifier 12.
Patent GB-209301-A (GB)
Title: An interchangeable self contained ball-bearing axle for perambulators, push chairs and similar vehicles
IPC: B60B27/02
Filed: 1923-01-22
Abstract: 209,301. Tomlinson, F., and Potter, T. E. Jan. 22, 1923. Ball bearings. - The wheel hubs of perambulators, invalid carriages, and the like have cup- and-cone ball bearings which are easily fitted to vehicles having plain bearings. As shown in the Figure, a cone b engages, by means of a screwed washer a, with a cup c having a boss which carries the inner end of the hub j. The outer end of the hub j is carried by a boss on a cone f which engages with a cup e by means of a screwed washer g. The cup e is screwed on the end of the axle d and is retained in position by a nut I and D- washer h.
Patent GB-797354-A (GB)
Title: Pipe bending machine
IPC: B21D7/02
Filed: 1955-01-21
Abstract: 797,354. Angular bending. HILGERS MASCHINEN - UND APPARATE - BAUANSTALT GES. Jan. 21, 1955 [Jan. 22, 1954], No. 1912/55. Addition to 767,134. Class 83 (4). [Also in Group XXIX] A pipe-bending machine as claimed and described in the parent Specification in which a pipe is bent round an hydraulically rotated bending former to which it is clamped and the trailing unbent part of the tube is guided by a bar or rollers, moved to engage the tube by hydraulic means, is characterized in that a delay valve is provided in pipe lines connecting hydraulic cylinders, operating the bending former and guide bar or rollers, to a control valve controlling the direction of operation of the pistons, so that the guide bar, or rollers, is subjected to pressure before the piston rotating the bending former is moved. Hydraulic pressure medium, e.g. oil, from a pump 10 passes through a magnetically-operated control valve 12 and then, in one position of the valve 12, through a line 16 to a delay valve 17. Oil passes through an inlet port 18 in the valve 17, an annular chamber 19, and an outlet port 21 and thence through a line 22 to move a piston 23, which moves the guide bar or rollers to the right. When the guide bar engages the unbent part of the tube the piston 23 stops and pressure builds up in the valve 17 against an annular piston face 20d, to lift a piston. 20 therein against an adjustable spring 27, to open a passage 26 to the oil under pressure. Oil then passes through a pipe 25 to move a piston 15, which rotates the bending former, downwards. For bending in the opposite direction the control valve 12 directs pressure oil through a line 32 against the other faces of the pistons 23 and 15, pressure against a piston face 20c this time lifting the piston 20 of the delay valve 17 after the piston 23 has been actuated.
Patent GB-543814-A (GB)
Title: Improvements in and relating to relieving attachments for lathes
IPC: B23B5/42
Filed: 1941-02-17
Abstract: 543,814. Backing-off attachments for lathes. TRY, R. H. Feb. 17, 1941, No. 2115. [Class 83 (iii)] A relieving attachment for a lathe comprises a relieving cam 4 splined on a shaft 5 driven from the lathe headstock by gearing 5a and arranged to reciprocate a slide block 6 connected by an adjustable link 14 to the cross slide 16. The cross slide guide is pivoted to the saddle at 26 and is adjustable by a slot an bolts 28 to vary the angle of relief. The shaft 5 includes a coupling 21 which may be angularly adjusted to vary the phase of the cam movement without disturbing the gearing 5a.
Patent GB-687754-A (GB)
Title: Improvements in disintegrators for fibrous materials such as paper pulp or the like
IPC: D21D1/32
Filed: 1951-01-29
Abstract: 687,754. Paper pulp disintegrators. WICKZELL, S. W. Jan. 29, 1951. [Jan. 28, 1950] No. 2177/51. Class 96. To the rotor shaft 16 of a paper pulp disintegrator are secured pump blades 6, a strainer plate 7 and agitator blades 3, the shaft 16 being in bearings 22 and having a driving pulley 18. The pump blades 6 force strained pulp to an outlet 10 whence it may be returned to the tank 2 for further treatment. The strainer plate 7 may have recesses around the upper ends of its openings, and may be cleared by a fixed scraper blade 13. The tank 2, &c. is supported on posts 19 and has deflector blades (not illustrated in Fig. 1) on its cylindrical wall.
Patent GB-249265-A (GB)
Title: Improvements in tunnel kilns
IPC: F27B9/02
Filed: 1925-01-26
Abstract: 249,265. Hanley, W. L. Jan. 26, 1925. Tunnel kilns.-A double-track tunnel kiln comprises two firing zones A separated by a partition wall 2 and each fired by a row of furnaces 5 communicating directly with the adjacent zone; means for withdrawing combustion products from each zone, and two end combined preheating and cooling zones A in free communication with the firing zones. As shown, the solid fuel fireplaces 5 are supplied with compressed air by a fan 6 under control of dampers 8, and the products of combustion pass into the heating zones over tapering curved walls 9, which may have baffle ribs 22 on their inner faces. The waste gas outlet ports 11 are situated at the lower end of a wall 9 just above the hearth level and lead through damper-controlled pipes 13 to main flues 14. The top layer of refractory material forming the hearth may consist of hollow slabs 18 which provide horizontal passages in alignment with the pipes 13 and are separated along the median line of the truck to leave a space for the passage of the heating- gases. The slabs 18 have inclined faces so arranged that the two piles of bricks carried thereby will incline slightly towards one another. The firing-zones are separately arched as shown in Fig. 4, while the combined end zones have a single arch. The preheating and cooling zones in the end section may be separated by a screen which does not extend up to the crown and has openings at the bottom to allow for circulation of air. The kiln may be fired by oil or gas instead of by solid fuel.
Patent GB-854620-A (GB)
Title: Manufacture of dipyridyl
Filed: 1958-01-24
Abstract: 2,21-Dipyridyl is manufactured by heating pyridine with ferrous chloride under superatmospheric pressure.  The preferred temperature range for carrying out the reaction is 250 DEG -350 DEG C. The preferred molar ratio of pyridine to ferrous chloride is between 3 to 1 and 25 to 1.  The ferrous chloride may be in a hydrated form or may be anhydrous or it may be used as a ferrous chloride-pyridine complex.  Specification 785,732 is referred to.
Patent GB-472148-A (GB)
Title: Improvements in or relating to piezo electric crystals
IPC: H03H3/02
Filed: 1937-01-27
Abstract: 472,148. Fiezo - electric crystals. SIEMENS & HALSKE AKT.-GES. Jan. 27, 1937, No. 2404. Convention date, Jan. 27, 1936. [Class 40 (v)] The electrodes of piezo-electric crystals are made of thin films of lead, tin, cadmium, bismuth, or one of their alloys, such as a leadtin alloy with lead-content up to 65 per cent or a lead-cadmium alloy with cadmium-content up to 50 per cent, in order to avoid breakage due to alloying of a precious-metal electrode with the solder by which the connecting wires are attached. The soft-metal electrode, sprayed on by the Schoop method, is one or a few microns thick in order that frictional damping may be avoided, and the connections are soldered by means of a soft solder whose melting- point is lower than that of the electrode. The soft metal may be deposited on a restricted area in the neighbourhood of the nodes of vibration, where the connecting wires are attached, while the rest of the electrode consists of a precious metal laid on by cathode dispersion or vaporization.
Patent GB-1147102-A (GB)
Title: Improvements in or relating to spark gaps
Inventor: TRAIN DAVID
IPC: H03K3/537
Filed: 1967-01-17
Abstract: 1,147,102. Pulse generating circuits. ENGLISH ELECTRIC CO. Ltd. 29 Dec., 1967 [17 Jan., 1967], No. 2511/67. Heading H3P. [Also in Division H2] Pulse generating apparatus comprises a  plurality of electrodes 19-27 spaced apart to form a series of air gaps, the electrodes being interconnected by a number of resistors of equal value so as to provide between adjacent electrodes a potential difference which is insufficient to cause flashover breakdown of the air gaps, the even numbered and the oddnumbered electrodes being interconnected by two capacitive networks. In operation the electrode 19 is connected to a charging resistor 28 and the electrode 27 to a wavetail resistor 29 whilst the electrode 26 is connected to terminal 30 by way of a capacitor 31. A pulse applied to terminal 30 charges capacitor 31 after which closure of a switch 32 discharges the capacitor and causes flashover breakdown of the spark-gap assembly. The discharge time constant of the apparatus is dependent upon the resistor 29.