baber/WOPTO huggingface dataset:
Patent GB-1128698-A (GB)
Title: Boring spindle
IPC: B23B29/034
Filed: 1967-09-13
Abstract: 1,128,698. Boring machine details. EXCELL.O CORP. 13 Sept., 1967 [14 Sept., 1966], No. 41817/67. Heading B3C.  A boring-spindle assembly comprises a housing 10 fixed to a stationary machine element 12, Fig. 2, a shaft 16 rotatably mounted in a bore 15 of the housing, a tool head 33 secured to the shaft, and having an expansible tool means 38 mounted thereon, a cam 37 secured to a spring- urged draw bar 65 and engageable with the tool means, and means 109 and 100 for respectively moving the draw-bar axially, and rotating the draw bar for radially advancing and retracting the tool and for controlling the size of bore produced. Tool means 38 comprises a toolholder 41, Figs. 2 and 5, seated in a recess 42 in head 33, the holder being split at 45 so that outward radial movement of a pin 57 by cam 37 flexes the toolholder, and therefore varies the cutting diameter of a ceramic tool bit 47 secured thereto. Cam 37 comprises a cylindrical bearing portion 55, Figs. 2, 5, 7 and a cam lobe 56 which tapers along its axis, and also varies in its radial dimension along its periphery. The rise of the cam can be adjusted relative to head 33 by a knob 62. Shaft 16 is rotated by a belt and pulley 83, 84, Fig. 2, or in a modification the spindle is stationary and the work is rotated. The draw bar 65 is rotated so that cam lobe 56 moves the tool radially in increments to correct for tool wear, by an electromagnetic overrunning clutch 90, Fig. 2, which is driven by a clevis 91 oscillated by an eccentric 97 forming part of a rotary actuator 100. The drawbar and cam 37 are moved axially so as to move the tool radially into its operating position, and retracting it, by a valve actuated pneumatic cylinder 109, Fig. 2. In a modification, tool means 38 has two tools and cam 37 has a cam path for each tool. In a further modification one of the tools is non-adjustable.
Patent GB-1364656-A (GB)
Title: Fluid valves
IPC: F16K17/38
Filed: 1971-09-08
Abstract: 1364656 Valves RANSBURG CORP 8 Sept 1971 [8 Sept 1970] 41873/71 Heading F2V A valve comprises a pair of body members 41, 42 having a fluid flow path therethrough and being biased away from each other by a pair of springs 60, 61 but being held in abutting relationship at normal temperatures by a retaining sleeve 43. At elevated temperatures the sleeve looses its mechanical strength and the body members are eased apart by the springs. A ball valve held between the springs is thus brought nearer to, and seats on, the valve seat 55. The sleeve may have an internal screw thread cooperating with the body members (Fig. 1, not shown). Suitable compositions for the sleeve are tin alloy, lead alloy, tin-lead alloy and tinlead-bismuth-cadmium alloy.
Patent GB-1117010-A (GB)
Title: Improvements in magnetically latchable relays
IPC: H01H47/22
Filed: 1965-10-04
Abstract: 1,117,010. Magnetically latchable relays. GENERAL ELECTRIC CO. 4 Oct., 1965 [16 Dec., 1964], No. 41928/65. Heading H2H The magnetic core 10 of an attracted armature type relay is provided with latching and unlatching coils 46, 50 respectively controlled by circuits 44, 48 energizable from a D.C. or A.C. supply. Upon closure of switch 56 the capacitor 54 passes a high initial current to close contacts 18, 20, the current falling to a low steady state value should switch 56 remain closed for an extended period. When switch 56 is opened, the contacts 18, 20 remain closed through the residual flux in members 10, 12, and capacitor 54 discharges through a resistor 58. To open contacts 18, 20, a switch 64 is closed and coil 50 is energized to reduce the residual flux and so allow a spring 22 to open the armature 12. The magnetic materials are conventional and are chosen so that the core 10 has a low coercive force relative to the armature 12, the material of which is heated, quenched and tempered in a particular way described in the specification. Diodes 52, 60 prevent undesirable voltages being induced in circuits 44, 48. Capacitor 54 may be replaced by a miniature incandescent lamp.
Patent GB-1370270-A (GB)
Title: Apparatus for assembling cartons and the like
IPC: B31B50/99
Filed: 1972-09-12
Abstract: 1370270 Die and pusher assembly ACI OPERATIONS PTY Ltd 12 Sept 1972 [28 Oct 1971 22 Dec 1971 20 July 1972] 42227/72 Heading B5D An apparatus for erecting box and/or lid blanks includes at least one die D having end and side wall folding members 3 and 5 and side flap folding members 9 welded to the folding members at the corners of the die, and at least one pusher P mounted in overlying relation to a die and comprising a pusher plate 11 fixed to a vertically movable rod 12 which is pivoted to an actuating lever 13 pivoted to support arms 14 through links 19 and by pins 16 riding in a slot between plates 15 and the arms 14. The pusher is counterbalanced by tension springs 23 secured to the plates 15 and to links (24, Fig. 2) secured to the pivot pins pivoting the links 19 to the arms 14. Each end and side wall folding member may comprise a series of angled plates or the rear end wall folding member and the side wall folding members may each be constituted by a single angled plate. The folding plates are adjustably mounted. A blank holding arrangement is pivoted to the pusher P and may include pads (27, Fig. 3) for pressing against glued portions of the erected blank or a stapler. The die D and pusher P shown in Fig. 1, is one of four similar assemblies mounted on a rotatable central post 2. The pushers may be operated automatically by cams upon rotation of the apparatus.
Patent GB-1518796-A (GB)
Title: Dispensing valves
IPC: B65B39/00
Filed: 1974-09-28
Abstract: 1518796 Powder dispensing valve BROWN SCHOEPE & PARR (COMPONENTS) Ltd 26 Sept 1975 [28 Sept 1974] 42251/74 Heading B8N [Also in Division F2]  A powder or fluid medium dispensing valve comprises a valve closure member 36 attached to a spindle 38 for guidance and a magnetizable armature 50 which is moved against spring-bias 42 to open the valve. The valve opening is located at the bottom of a funnel 30 attached to the base of a canister 10. An outer funnel 18 provides a discharge tube 24 and shields the solenoid 52 from the powder. Vent holes 54 are provided to prevent vacuum in the funnel. The spring tension is adjustable by a stop 44 and the degree of valve opening by a stop 46. The spindle 38 may have radial arms to agitate the powder on each valve actuation. The valve is used in a beverage dispenser.
Patent GB-1051953-A (GB)
IPC: H04N5/74
Filed: 1963-10-25
Abstract: 1,051,953. Modulating light. GRETAG A.G. Oct. 25, 1963 [Oct. 26, 1962], No. 42273/63. Addition to 861,408. Heading H4F. [Also in Division H1] In the reproduction of television pictures by means of a schlieren optical system containing a deformable film controlled by a scanning electron beam, the beam is controlled so that the charge pattern laid down along the picture lines varies in width across the lines pointby-point in accordance with the video signal, the width being greater the lower the brightness of the picture point. The variation in the width of the charge laid down is effected by varying the focus of, i.e. defocusing, the electron beam. In the present Specification a magnetic quadrupole lens is used to vary the beam focus, whereas in the parent Specification an electrostatic quadrupole lens is used. As shown, Fig. 4, the defocusing device 104-107, Fig. 2, is disposed between the anode 74 and the focusing coil 76 of the cathode-ray tube outside the vacuum. The defocusing device, i.e. the magnetic quadrupole lens comprises four current conductors 104-107, connected together or bent out of a single piece of wire, disposed parallel and symmetrical to the axis 75 of the electron beam, the picture signal being fed in'at opposite ends of conductors 104, 107, such that the current flow directions are opposite one another in neighbouring conductors and the magnetic axes lie in a plane normal to the beam axis 75 and interset the latter at the same point. In a further embodiment the defocusing device may comprise four identical coils disposed symmetrically to the axis of the electron beam with the current flow directions opposite to one another in neighbouring coils and the modulation signal fed to all four coils with identical ampere turns but with alternating directions.
Patent GB-1345054-A (GB)
IPC: G06V30/162
Filed: 1971-09-10
Abstract: 1345054 Character recognition systems ARTHUR KLEMT KG 10 Sept 1971 [10 Sept 1970] 42398/71 Heading G4R To reduce the effects of changes in contrast and background brightness of a character field scanned by a character recognition system at least one photo-cell is employed to view an area of the background in which no part of characters to be recognized ever appears. The signal from this cell, representing the background, is subtracted from each of the output signals of a matrix of photo-cells which view the character field. The difference signals are fed to respective resistance bridges and to an adder which forms the sum of the difference signals. The sum signal is fed to the other arm of the bridges. The signals fed to the bridges are processed in a known way to provide signals indicative of the character. If the scanned character agrees with the characteristics of a standard character one of the character-indicating signals lies within certain limits. The signals are fed to a comparator for comparison with the sum signal, the comparator output indicating the character. Instead of a single cell viewing the background several cells may be used, the average of their outputs being subtracted from the matrix outputs.
Patent GB-1122706-A (GB)
Title: Benzofuran derivatives and process for preparing the same
Inventor: BINON FERNAND
IPC: C07D307/79
Filed: 1966-09-22
Abstract: Novel benzofurans of the formula <FORM:1122706/C2/1> wherein R1 is hydrogen, methyl or ethyl and R2 is alkyl (C1-C4), are prepared, in the case where R1 is methyl or ethyl, by reacting 5-hydroxy - 2 - methyl - benzofuran with acetone or methyl ethyl ketone in the presence of chloroform and sodium or potassium hydroxide to form the free carboxylic acid corresponding to the above formula and esterifying this acid as required and in the case where R1 is hydrogen, methyl or ethyl, by etherifying 5-hydroxy-2-methyl-benzfuran with an alkyl ester of the formula <FORM:1122706/C2/2> wherein X is a halogen. Pharmaceutical compositions contain as the active ingredient the above novel benzofurans. The compositions may be in a form for oral administration, for example, as a solution in a vegetable oil which may be contained in a gelatine capsule.
Patent GB-952430-A (GB)
Title: Improvements relating to needling devices
IPC: D04H18/00
Filed: 1962-11-09
Abstract: 952,430. Needling fibrous batts. R. FREUDENBERG, H. FABRICIUS, H. E. FREUDENBERG, K. KRAFT, O. SCHILDHAUER, P. WENTZLER, H. FREUDENBERG, and D. FREUDENBERG, [trading as CARL FREUDENBERG [Firm of]]. Nov.9, 1962 [Nov.9, 1961], No.42462/62. Heading DIR. A device for needling fibrous batts comprises a needle board 1 provided with barbed needles 2 arranged in longitudinal rows and a pair of guide plates 7, 9 between which the batt passes, the needles 2 passing through the upper plate 9 and the lower plate 7 being covered with particulate material, e.g. iron shot, to such a depth that in operation the needles cannot strike the upper surface of the plate 7. The plate 7 is preferably a shallow metal tray. The plate 9, preferably of metal, has slots therein to register with the needle rows. Ribs 8 separate the slots. To prevent the shot being pinched up by the batt the shot may be magnetized to cling together. Alternatively, the tray 7 together with the shot may be vibrated.
Patent GB-1071359-A (GB)
Title: Improvements in agricultural crop treating machines
IPC: B30B11/20
Filed: 1964-10-19
Abstract: In a machine for wafering forage crops comprising a series of die cells including entrance and outlet ends and compacting means to force crop material into and through the cells, which cells are separated at the entrance ends thereof by sharp die edges, means are provided for heating said die edges.  The die cells may be arranged as an annulus.  The heating may be effected by passing a heating fluid through a hollow portion of the die edges.  The side walls of the dies may be similarly heated.  Waste heat from the engine driving the compacting means may be directed on to the forage crop prior to compaction.
Patent GB-1399629-A (GB)
Title: Method and apparatus for measuring the modulus and the mechanical  damping of a material
IPC: G01N3/32
Filed: 1972-09-15
Abstract: 1399629 Measuring torsional modulus electrically DUNLOP Ltd 15 Sept 1972 [15 Sept 1971] 42870/72 Addition to 1331810 Heading G1N Apparatus for measuring the torsional modulus and mechanical damping of a sample of material 12, Fig.1, fixed to a base plate 32, comprises a coil 11 attached to the free end of the sample between two field coils 14 fed with A.C. from a source 13, the voltage induced in coil 11 when the sample is made to oscillate in damped torsional mode being analyzed to measure the frequency and log dec, which are indicative of the torsional modulus and mechanical damping respectively. The induced voltage is demodulated at 47, Fig.2, and fed to trigger circuit 17 which produces a square pulse corresponding to each positive halfcycle, Fig.3, the starts of two consecutive pulses opening and closing a counter 16 for clock pulses from a generator 22, the count being indicative of the periodic time of oscillation and therefore inversely proportional to frequency and indicative of the torsion modulus. Via line 34, the second of the two pulses introduces a two second delay before clearing counter 16 and resets the frequency of generator 22 for the next measurement. The demodulated oscillation signal in coil 11 is also fed to a trigger 27 and two memory stores 23, 24. Trigger 27 produces a square pulse for each positive half-cycle, starting when the oscillation voltage exceeds a threshold level 28 and terminating at the end of that half-cycle. The amplitude A o  of the first oscillation positive half cycle is stored in memory 23, and the amplitude of the first half-cycle which does not reach the level 28, e.g. A2 as shown, is stored in memory 24, whilst counter 26 determines how many consecutive pulses have occurred, up to a maximum of four. The difference between voltages A 0  and A2 (as shown) in stores 23, 24 is discharged through an R.C. circuit 40, the time taken for the difference to be eliminated being measured by counter 16 using the clock pulses from generator 22, this time being proportional to log A 0 /A 2  and is proportional to the log dec and mechanical damping. Counter 26 introduces a factor depending on its pulse count.
Patent GB-1366305-A (GB)
Title: Dynamo-electric machines
IPC: H02K1/16
Filed: 1971-08-16
Abstract: 1366305 Core constructions REYROLLE PARSONS Ltd 16 Aug 1971 [8 Sept 1970] 42949/70 Heading H2A A stator core, e.g. for a turbogenerator, comprises an axial array of mutually insulated segmented laminations, the joints between the segments being circumferentially staggered in successive laminations such that there are at least two laminations between any two axially aligned joints. This arrangement avoids the buckling of the segments occurring in prior art cores wherein the segments of alternate laminations are axially aligned.
Patent GB-1038849-A (GB)
Title: Baking oven
IPC: A21B1/26
Filed: 1964-10-23
Abstract: 1,038,849. Hot-air ovens. PERSSON and M. E. TILLANDER A.B. Oct. 23, 1964, No. 43284/64. Heading A2A. A baking oven comprises a baking chamber heated by repeated circulation of hot air, which enters the chamber through inlet openings in one side-wall, then flows, substantially horizontally, through spaces between vertically stacked baking plates supporting pieces of fermented dough, and leaves the chamber through outlet openings in an opposite side-wall. The baking plates may be stacked in a movable carriage. One or each side-wall, preferably the one having the inlet openings, comprises two flat plates, which are kept in face-to-face sliding contact. Each plate is pierced by a plurality of holes or slots arranged in patterns, which are identical on both plates. One plate can be slid relatively tothe other to bring the holes or slots in said one plate into complete or partial register with the holes or slots in the other plate, to vary the size of the resulting inlet and/or outlet openings. The baking oven shown in Fig. 1 has an outer casing 1 comprising inner and outer layers of sheet material with heat-insulating material 3 located between them. Two boxlike baking chambers 4 are enclosed in the casing. They are separated from the casing and from each other by spaces 8 and 18. Each chamber 4 has a top-wall 7 and two vertical side-walls 5 and 6, each comprising two plates, namely an outer fixed plate 9 and an inner movable plate 10, which are kept in contact by pins projecting from the plate 9 and passing through guide slots in the plate 10. The plates are pierced by holes 11, The two baking chambers are bridged by a perforated housing 16 on which two air-circulating fans 14 are mounted. The fans are driven by two electric motors 15 and circulate air through the spaces 8, the chamber 4 and the space 18. The air in the spaces 8 and 18 is heated by electric heaters 17.
Patent GB-1002043-A (GB)
Title: Improvements in brake regulating devices
IPC: H01H35/10
Filed: 1961-12-06
Abstract: 1,002,043. Anti-skid device. WESTING- HOUSE BREMSEN-G.m.b.H. Dec. 6, 1961 [Dec. 29, 1960], No. 43636/61. Heading F2F. A regulating device for braking equipment for preventing spinning or sliding of the wheels of a vehicle comprises an electric switch 15 operable by two masses 1, 11 dependent upon the rotary movement of the wheel and the linear motion of the vehicle respectively. On relative movement of the masses 1, 11 a pushrod 8 and the switch 15 move in the same axial direction such that, at the end of the operation, the push-rod 8 is pulled away from the switch 15. A shaft 2 is rigidly connected to a wheel of the vehicle. A lever 4 connected to push rod 8 is mounted in a slot of shaft 2. Bearings 5 of lever 4 co-operate with tracks 6 of mass 1 so that, on a deceleration or acceleration of shaft 2, bearings 5 ride up in tracks 6 to move push-rod 8 to the right (Fig. 1). If, however, the vehicle is accelerated or decelerated at the same time mass 11 moves relative to the vehicle, bearings 13 riding up track 14 to move shaft 12 carrying switch 15 also to the right. If, however, spinning or sliding of the wheel occurs only mass 1 will be actuated to operate switch 15 and thus correct the defect. The distance of travel of push-rod 8 and shaft 12 are limited by stops 10, 17 acting on lever 4 and mass 11 respectively. In a modification a diaphragm and cylinder device actuated by brake pipe pressure operates, selectively, through a switch, one of two solenoids to correct for either spinning or sliding (Fig. 2, not shown).
Patent GB-969625-A (GB)
Title: Method of treating fibres to produce a permanently crimped material
IPC: D02G1/12
Filed: 1960-11-24
Abstract: Permanently crimped, natural e.g. silk, cotton, linen, ramie, jute, or regenerated cellulose, nylon, acrylic, modacrylic, nitrilic, venyl or olefinic fibres or filaments are produced by impregnating the fibres with a thermosetting resin, partially drying, crimping e.g. in a stuffer-box crimper, to form a continuous core of crimped fibres, winding the core together with a pervious tape in successive convolutions on a pervious support to form a core package, setting the crimp in the fibres (while they are held compacted in the core) by subjecting the core to treatment e.g. with hot air or pressure steam, to set or cure the resin, and progressively removing the tape from the package to expose the core and extracting the treated fibres therefrom as it becomes so exposed.  The crimping and package winding and the removal of the tape may be effected by the apparatuses described in Specifications 969,622 and 969,624.  The thermosetting resin may be dimethylol ureas, di or tri-methylol melamines, methylated methylol ureas or melamines, dimethylol ethylene ureas, dimethylol propylene-ureas, dimethylol triazones and formaldehyde.
Patent GB-966918-A (GB)
Title: Gyromagnetic resonance method and apparatus
IPC: G01R33/345
Filed: 1960-12-20
Abstract: 966,918. Gyromagnetic resonance apparatus. VARIAN ASSOCIATES. Dec. 20,1960 [Dec. 21, 1959], No. 43761/60. Heading G1N. In a cavity resonator 23 Fig. 2, including a notched Dewar tube 8 supporting a sample in a test tube 11, in the cavity for gyromagnetic resonance testing in a strong magnetic field modulated by a pair of sweep coils 31, Fig. 3, the cavity comprises a main body structure 22 having a coupling opening for directing microwave energy into the cavity, and walls 26 of high resistivity on the sides at which the sweep coils are positioned, the interi- or having a lining of up to several skin depths of a diamagnetic material with a low resistivity, whereby a high Q is obtained and the microwave field created within the cavity is screened. The diamagnetic materials may comprise platinum, gold, silver or copper,the last named having a thin flash of gold to prevent tarnishing. Dry gas may be introduced into the waveguide system through a hose coupling 7b, Fig. 1 to prevent condensation during low temperature operation,the operating temperatures being controlled by a heater within cap 13, or liquid nitrogen in a beaker 17 acting on the supply of dry air which is passed through the Dewar structure 8 and around the sample tube 11. The temperature is controlled by a thermocouple in the Dewar tube. The cavity 23 has end plates 24, 25 and side walls 26 of glass or ceramic, a corrugated silver gasket providing a good electrical connection between the diamagnetic skins on wall 26 and the waveguide. Sweep coils 31 are cemented to an insulating plate 32 which is screwed to a pressure plate 28 holding the side plate 26. The position of the sample in the cavity is made adjustable by a screw cap 65 which adjusts the position of T piece 62 and thus the Dewar system, relative to a main sleeve 57 secured by means of its extension 58 to the bottom of the cavity. Slots 51 are cut in the side wall of the cavity parallel to line of current flow to allow for irradiation of the sample by a source of X- rays from a source such as 21 with negligible loss of microwave energy. A further baffle 55 which comprises a waveguide with a cut-off beyond the resonator frequency may also be provided. An externally adjustable iris shutter 35, Fig. 4, is provided between end plate 25 and wave 7. Alternative cylindrical cavity resonators of high resistivity metals such as brass, stainless steel, german silver and manganese copper plated first with highly resistive non ferromagnetic material such as tin, platinum, palladium, lead or bismuth before plating with a low resistive metal, are described with reference to Figs. 7-11 (not shown),the sweeping coils in these embodiments being mounted at right angles and fed with A.C. 90 degrees out-of-phase in order to produce a rotating field. Coil leads through the cavity are described. Specification 966, 919 is referred to.
Patent GB-1037248-A (GB)
Title: Carburettor for internal combustion engine
IPC: F02M1/00
Filed: 1964-10-28
Abstract: 1,037,248. Spray carburetters. FORD MOTOR CO. Ltd. Oct. 28, 1964 [Dec. 30, 1963], No. 43892/64. Heading F1B. A float valve 39 is controlled by a lever 45 pivoted about an axis 52 and having the float 43 pivotally mounted on the lower horizontal arm 46 thereof, whereby flow of fuel from one side to the other of the float chamber merely causes rocking of the float 43 about the lever part 46 without affecting the valve 39.