baber/WOPTO huggingface dataset:
Patent GB-1110231-A (GB)
Title: Improvements relating to forge feedback servomechanisms
Inventor: WOODVILLE CHRISTOPHER JAMES
IPC: G01F1/90
Filed: 1963-11-08
Abstract: 1,110,231. Measuring density: accumulators. SPERRY RAND Ltd. 1 Feb., 1965 [8 Nov., 1963], No. 44117/63. Heading G4A and G4H. A continuous flow densitometer of the force feedback type adds or subtracts pulses to or from a density-indicating counter according to the sign of the densitometer error signal, the balancing force being provided by means of a moving coil transducer fed with a current which is adjusted with the counter reading. The current is obtained from weighted resistors switched into circuit by the counter stages, a stabilizing amplifier being provided to keep the voltage across the resistors switched in accurately constant. The counter is fed with pulses from a generator, the frequency of which is held at a higher value when a second counter is at capacity. The second counter is incremented by every second pulse fed to the first counter, prevented from counting beyond capacity, and reset to zero whenever the force feedback system reaches or goes through balance. The reading of the higher stages of the first counter is added into a third counter every revolution of a rotary vane pump controlling and measuring volume flow rate through the densitometer, being preceded by adding in of a constant representing a counterbalanced nominal density. The third counter thus indicates mass flow rate. The third counter increments a fourth counter once for every count of 1000, since this occurs when it reaches its capacity of 1024 and simultaneously another 24 is added into the third counter. A fifth counter counts revolutions of the rotary vane pump to indicate total volume. While the count of the first counter is being added into the third, incrementing and decrementing of the first counter is inhibited. There is time for propagation of carries in the third counter between entry of successive digits (bits.). Incrementing above capacity and decrementing below zero, of the first counter, are prevented. Accumulators.-A parallel binary number to be added into a binary accumulator comprising transistorized flip-flops is entered a binary digit at a time to respective stages by means of a scanner controlling input AND gates. The time between entry of succesive bits is sufficient for propagation of any carries. In a modification, carries can be obtained from selectively the 0 or 1 sides of the flip-flops, depending on the state of a further flip-flop, to provide selectively addition or subtraction. A scanner described comprises reed switches closed in turn by a rotating magnet.
Patent GB-898104-A (GB)
Title: Polythene compositions
Inventor: HOWELLS ERIC REGINALD
IPC: C08K3/04
Filed: 1959-12-30
Abstract: A composition comprises 100 parts by weight of polythene and 5 to 25 parts by weight of an inert filler having an average particle diameter not exceeding 50 .  Specified fillers are carbon black, silica, calcium and magnesium carbonates, silicates such as calcium, sodiumaluminium, potassium, aluminium, sodium and magnesium silicates, coated silicates and barium sulphate. The composition may be shaped by extrusion or injection moulding.
Patent GB-1012177-A (GB)
Title: Device for controlling the rheostat contactors of an electric commutator motor
IPC: H02P7/28
Filed: 1962-11-26
Abstract: 1,012,177. Control of motors. ATELIERS de SECHERON S.A. Nov. 26, 1962 [Nov. 27, 1961], No. 44635/62. Heading H2J. Contactors C 1 , C 2  for regulating a rheostat in circuit with a traction motor are operated in a sequence determined by pre-set values of a variable control voltage which is a function of the speed of the vehicle and of the magnitude of the motor current. Differentiator 1 receives a speed-responsive voltage and delivers a rate signal Ea to summator 4 which also receives signal Er representing the position of an accelerator pedal. Unit 3 provides signal Ec when the motor current exceeds a predetermined value. The unit 4 has an output p which is the difference between the signal Er and the sum of signals Ea, Ec, and the signal p is integrated in unit 6 to form control voltage Uc. This control voltage cannot exceed voltage Et provided by unit 5 and determined by the position of the acceleration pedal. Electronic units 7, 8 operate contactors C 1 , C 2 , when the control voltage Uc reaches different pre-set values. The contactors C 1 , C 2  may be interlocked so that the contactor C 1  responds at a low value of the control voltage, and contactor C 2  at a higher value, whereupon contactor C 1  drops out. Contactor C 1  is operated again at a still higher value of the control voltage. In another arrangement, the system is applied to the control of mill motors.
Patent GB-1496833-A (GB)
Title: Method and apparatus for the electrostatic spraying of pulverulent substances onto metal pipes
IPC: B05D1/00
Filed: 1975-10-30
Abstract: 1496833 Electrostatic spraying STAHLWERKE PEINE - SALZGITTER AG 30 Oct 1975 [31 Oct 1974] 44825/75 Heading B2L  Electrostatic spraying apparatus comprises spray nozzles 6 mounted in a chamber 4 the arcuate lower edge of which can be adjusted to maintain a constant air gap 7 above pipes of whatever diameter. The pipes are rotated at a, constant peripheral speed, the linear speed relative to the chamber being adjusted to achieve the required coating thickness. The chamber is coated with a material which does not accumulate electrostatic charge.
Patent GB-1109095-A (GB)
Title: Electrically conductive sheets or films
Inventor: PAUL PETER FERGUSON MACLACHLAN
IPC: H01B1/24
Filed: 1963-11-13
Abstract: An electrically conductive coating for use as a heating surface is applied in the form of not less than 40% of an electrically conductive particulate carbonaceous medium of size predominantly 45-125 microns contained in a liquid insulant.  The medium may be pitch, furnace or foundry coke, the conductivity of which may be increased by calcination.  Electrodes may be applied to the sheet by coating them with a conductive material and bonding them to the sheet before its installation or in situ.  A further sheet of material containing additives or fillers which provide an insulating outer surface may be applied to the sheet. Large sheets can be formed by spraying on a backing sheet which is then peeled off.  The insulant may be natural rubber latex or a synthetic polymer latex such as P.V.C. latex, polyvinylidene chloride latex, polyvinylacetate latex, polyvinyl alcohol latex or polyvinylpropionate latex.
Patent GB-1103969-A (GB)
Title: Mixing capsule
IPC: A62C13/00
Filed: 1966-10-07
Abstract: 1,103,969. Capsules. DENTAL DESIGN SERVICE. 7 Oct., 1966 [19 Oct., 1965], No. 44902/66. Heading B8C. A capsule, which enables two complementary materials to be stored separately and mixed before use within the capsule, comprises body members 10, 11, formed, e.g. of plastics, wherein the materials are stored respectively separated by a diaphragm 12, the lower end of the body member 10 having a cutting edge 16 for rupturing the diaphragm, which then hinges downwards and is trapped between the walls of the members 10, 11 as the member 10 is pressed down. The diaphragm forms the base of a cup member 13. The member 10 has a piercer (16-1), Fig. 6 (not shown), and a blunt portion (18) at its lower end to cause the hinged to be formed. The materials to be mixed may be silver powder and mercury.
Patent GB-1120966-A (GB)
Title: Production of tetrahydrotricyclopentadienylene diamines
Inventor: RAFF PAUL
IPC: C11B9/00
Filed: 1965-10-28
Abstract: Mixtures of compounds having the generic formula <FORM:1120966/C2/1> are prepared by reacting at least 1 mole of tricyclopentadiene with at least 4 moles of HCN in the presence of 3-6 moles conc. sulphuric acid at from -5 DEG  to 35 DEG  C. and hydrolysing the resulting diformyl diamines.
Patent GB-1361864-A (GB)
Title: Spiro-indoline-2,5-isoxazoline- compounds and their preparation
IPC: C08G73/06
Filed: 1971-09-30
Abstract: 1361864 Spiro-(indoline-2,5<SP>1</SP>-isoxazolines) FUJI PHOTO FILM CO Ltd 30 Sept 1971 [1 Oct 1970] 45663/71 Heading C2C The invention comprises spiro-(indoline-2,5<SP>1</SP>- isoxazolines) of the formula wherein R 1  is a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, an alkoxycarbonyl group wherein the alkyl group has 1 to 4 carbon atoms, a nitro group or a methylene group having 1 to 3 carbon atoms; R 2  is a hydrogen atom, a hydroxyl group, an alkoxycarbonyl group wherein the alkyl group has 1 to 4 carbon atoms, a cyano group or a phenyl group; R is an unsubstituted phenyl group, a phenyl group substituted by a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, a methylene chain having 1 to 3 carbon atoms or a phenylene group; and m is an integer from 1 to 4. They may be prepared by reacting the corresponding indolenium salt or 2-methylene indoline with a corresponding hydroxamic acid halide in a solvent in the presence of a base.
Patent GB-1103497-A (GB)
Title: Improvements in boxes for electrical accessories
Inventor: BUTCHER ERIC JAMES
IPC: H02G3/08
Filed: 1965-10-29
Abstract: 1,103,497. Boxes for electrical accessories. J. A. CRABTREE & CO. Ltd. 20 Sept., 1966 [29 Oct., 1965], No. 45794/65. Heading HlN. [Also in Division H2]  Metal boxes for wall mounting electrical accessories are connected by junction members consisting of short lengths of rectangular or round-section tubing, so disposed as to lie below the level of the plaster surface when the boxes are installed. Where the covers of adjacent fittings do not quite meet, the space between them is plaster filled and decorated. In the arrangement shown, lugs 3 project from the side walls of each box and the connecting passage is completed by a U-shaped piece 4.
Patent GB-1441515-A (GB)
Title: Rotary gas compressors and expnanders
IPC: F01C3/02
Filed: 1974-10-23
Abstract: 1441515 Rotary positive-displacement fluidmachines B ZIMMERN 23 Oct 1974 45908/74 Heading F1F In a worm and worm-wheel type gas compressor, or expander, to increase the compression or expansion ratio each tooth 6 of the or each pinion 4 meshing with the worm 1 has a flank 13 on the low-pressure side longer than that on the highpressure side.
Patent GB-956663-A (GB)
Title: Film threader
IPC: G03B21/32
Filed: 1962-12-07
Abstract: 956, 663. Cine film threaders; spools. J. WALTERSCHEID, and B. WALTERSCHEIDMULLER. Dec. 7, 1962, No. 46334/62. Heading G2E. To facilitate the loading of cine film on to a spool having a slot 9 in its core, a clip is provided having elongated arms 1, 2 which are spring joined at 10 and formed with part-cylindrical portions 3, 4 for embracing the spool core 8 terminating in diverging portions 6, 7 forming a funnel through which a film A may be passed into the spool core via slot 9. When the film reaches the end of core 8 opposite the slot 9, the spool is rotated to wind up about three film turns whereupon the spool is removed from the funnel formed by portions 3, 4 or the clip and introduced into the camera.
Patent GB-1294780-A (GB)
Title: Magnetic recording material
IPC: G11B5/735
Filed: 1971-10-05
Abstract: 1294780 Magnetic recording media FUJI PHOTO FILM CO Ltd 5 Oct 1971 [5 Oct 1970] 46354/71 Heading H1H A magnetic recording medium comprises a non-magnetizable support bearing a magnetizable layer, and on the reverse side, a first layer having a surface electrical resistance not exceeding 10<SP>9</SP> ohms, and a white or lightcoloured layer coated on the first layer. The electrically-conductive first layer may be 0À3 to 5 microns thich, and may comprise conconductive particles (e.g. 0À01-10 microns) of carbon black, graphite, copper, aluminium or silver dispersed in a polymeric binder. The light-coloured layer may be 0À5 to 5 microns thick, and may comprise white or yellow pigment particles (e.g. 0À005-20 microns) (many specified) dispersed in a binder. In both layers, the particle: binder ration may be 10:1 to 1:2. A dye may be incorporated with white pigment in the light coloured layer. The same binder (many specified) may be used for forming the magnetizable, conductive and light-coloured layers. The conductive layer may be formed before, during or after forming the magnetic layer, and the light coloured layer may be formed during or after forming the conductive layer. In examples using polyethylene terephthalate films coated with acicular magnetic particles, the conductive layers are carbon black or graphite dispersed in polyester and the light-colouted layers are T 1 O 2  dispersed in polyurethane or chlorosulphonated polyethylene (dyed light green, blue or red) or ZnO dispersed in polyurethane. The products provide a surface adapted to be written on, while still having antistatic properties.
Patent GB-1081685-A (GB)
Title: Mine roof support equipment for use in conjunction with power stowing
Inventor: SAVAGE PAUL
IPC: E21F15/04
Filed: 1964-11-16
Abstract: 1,081,685. Goaf stowing. A. G. WILD & CO. Ltd. Feb. 16, 1966 [Nov. 16, 1964], No. 46500/64. Heading E1F. A mineral-mining installation has two independently operable sets of self advancing supports of which the supports of one set carry a stowing shield and a stowing pipe for pneumatic stowing and alternate with the supports of the other set.
Patent GB-466758-A (GB)
Abstract: 466,758. Counting apparatus. HANDLEY, J., SUCKLING, C., and SUCKLING, R. H. Jan. 6, 1936, No. 397. [Class 106 (i)] An electro-mechanical mechanism including step-wise operated primary mechanism which transmits impulses to secondary mechanism through the medium of accumulator mechanism to permit the temporary storage of impulses, particularly applicable to totalizators, is provided with means whereby two impulses of the primary mechanism are required to effect one impulse of the secondary mechanism. The mechanism shown in Fig. 1 differs from that described in Specification 454,653 in that the fixed tooth wheel 10 has only half as many teeth as the ratchet wheel 5, which is rotated step-by-step by a pawl 4 on the armature 2 of the electromagnet 1, which receives the impulses to be counted, each impulse representing a five unit value or bet. The cam disc 7, which rotates with the wheel 5, causes the detent 8 to jump a tooth of the wheel 10 for each two consecutive steps and thereby allows the spur wheel 9 to impart a tenth of a revolution to a tens denominational element. The wheel 5 has secured thereto a correcting disc 110 with radially projecting fingers 111 alternating with gaps 112 which are proportional to the number of teeth of the wheel 10. Co-operating with the fingers is a wiper 113 so arranged that if a five unit value is stored when an operation ceases a circuit will be closed through the wiper and disc for the purpose of correcting a reading. A conventional circuit for a totalizator is shown in Fig. 2, wherein A is the totals counter, B, C, and D are the first, second and third runner counters. Each counter in addition to the correcting disc 110 is provided with a clearing disc 114 and wiper 115 for clearing a stored bet when the counters are zeroized by the operation of the zeroizing lever 116. The circuit includes two rotary line switches, viz. a hunter switch 117 and an assigner switch 118. The switch 118 has sets of contacts, the contacts 125 are connected to the collector brushes 130 of the discs 110 ; the contacts 126, 127, are wired to the units magnets of the counter A, and counters B, C, and D respectively ; the contacts 128 are wired to the wipers 113 ; the contacts 129 are connected to the first of the contacts 131 of the switch 117. When the hunter switch is started an impulse through the coil 119 steps on the switch 118 to the first of the sets of contacts. This connects the component set of contacts 123, 128, to the wiper 113 of the first counter B, the collector brush 130 connects back to the components 120, 125 which connects through components 122, 127 and 121, 126 to the magnets 1<a> of the counter B and totals counter A. The hunter switch is then stepped round to send five impulses from the battery 133 through the contacts 131 and the components 123, 128 to the wiper 113, which impulses will be passed to the counters B and A if the wiper is on a finger 111. The hunter switch then steps on the switch 118 to deal with the counters C, and D in succession and finally deals with the totals counter A.
Patent GB-1207590-A (GB)
Title: Improvements in or relating to pipe clamps
IPC: F16L41/06
Filed: 1968-10-03
Abstract: 1,207,590. Clamps. GEORG FISCHER A.G. 3 Oct., 1968 [4 Oct., 1967], No. 47049/68. Heading E2B. [Also in Division F2] A pipe clamp for positioning a boring tool relative to a pipe to be bored comprises two complementary saddle parts 112 shaped to embrace the pipe therebetween, one of which saddle parts has an opening for receiving the boring tool, and two wedges 3, 4 each slidably engageable over one of two wedge guides 3', 4' on one saddle part and over one of two wedge guides 3", 4" on the other saddle part, to hold said parts around the pipe wherein the wedge guides and the wedges each have correspondingly shaped slide surfaces by means of which the wedges are slidably engaged on the wedge guides, each said slide surface having a substantially semi-circular cross-section in a direction transverse to its longitudinal direction, and wherein one saddle part is formed with a projecting dog 5 and the other saddle part is formed with a corresponding recess 6 for receiving the dog in order to prevent relative displacement between the saddle parts axially of the embraced pipe. As shown each saddle part is formed with a said projecting dog 5 for engagement in a said recess 6 in the other saddle part. In a modification however only one of the saddle parts has a said dog and the other has the recess for engagement by the dog. The clamp as described is made of plastics material.
Patent GB-1241437-A (GB)
Title: Improvements in and relating to the counter-current washing of solids
Inventor: VILLIERS OCTAVE D HOTMAN DE
IPC: B03B5/56
Filed: 1968-10-04
Abstract: 1,241,437. Extracting from solids. A. & W. SMITH & CO. Ltd. 30 Sept., 1969 [4 Oct., 1968], No. 47141/68. Heading B1Q. Liquid is fed to the rotatable drum 10 at its lower end and leaves the drum by the perforations 18. The solid is introduced in countercurrent and the rotation of the drum carries batches of solid material around in pockets formed by flights to leave by the chute 20. Means for clearing the perforations 18 are provided.
Patent GB-1030750-A (GB)
Title: Improvements in or relating to liquid dispensing apparatus
IPC: B67D1/00
Filed: 1962-12-14
Abstract: 1,030,750. Beer dispensers. L. C. SNELLING. March 13, 1964 [Dec. 14, 1962; March 22, 1963; Aug. 13, 1963], Nos. 47336/62, 11407/63 and 31963/63. Heading A4T. [Also in Division B8] Liquid dispensing apparatus comprises a measuring chamber 10, Fig. 2, or 56, Fig 6 (not shown), a reservoir 12 or 57, whose upper portion forms a gas space for gas under pressure, a liquid inlet 37 or 88 to the reservoir 12 or 57, an outlet passage 34 or 79 from the measuring chamber 10 or 56 through which liquid may be dispensed, a normally closed outlet valve 33 or 80 in the outlet passage 34 or 79, a normally open valve 19 or 73 in a port between the reservoir 12 or 57 and the  measuring chamber 10 or 56, a gas passage 25 or 71 joining the upper portion of the reservoir 12 or 57 with the measuring chamber 10 or 56 and valve operating means for opening the outlet valve 33 or 80. As shown, Fig. 2, beer is fed under pressure through a supply tube 37 and check valve 38 to a reservoir 12 and thence via an open valve 19 to a measuring cylinder 10. To dispense the beer a lever 31 is moved so that a plate 30 lifts the outlet valve 33 and simultaneously causes a member (not shown) to depress a bar 29 connected to an upper cross member 27 and thus close the inlet valve 19. On return of the lever 31 the outlet valve 33 closes and the inlet valve 19 opens under the action of compression springs. The measuring cylinder is vented through a passage 25 into reservoir 12, and a carbon dioxide inlet nozzle 39 and a vent orifice 44 are alternately opened and closed by a float operated sealing washer 40. Alternatively carbon dioxide may be introduced through a drilling communicating with the vent passage 25. In an alternative embodiment, Fig 6 (not shown), a measuring cylinder 56 has an outlet valve 81 closed by a buoyant rubber or hollow steel ball held down by pressure difference at the valve opening. Also an inlet valve comprising a plate 73 having sealing washers 75, 76 is biased to an open position by a compression spring 77. When a handle 84 is depressed a probe X is moved down by a linkage (not shown) thus closing the inlet valve, and a probe pin 82 is raised thus lifting the ball and allowing beer to be dispensed. The cylinder 56 is vented through a bore 66 in a column 60 in which is positioned an adjustable needle valve 70. whereby, the rate of delivery of beer may be preset.
Patent GB-1240347-A (GB)
Title: Tubular shells for the heat-insulation of pipes
IPC: F16L59/02
Filed: 1968-10-08
Abstract: 1,240,347. Heat-insulation coverings for pipes. ROCKWOOL A.B. 8 Oct., 1968 [16 Oct., 1967], No. 47571/68. Heading F2P. Transport and storage of heat-insulating tube shells utilizing a resilient mat of rock wool or glass wool is facilitated by compressing the mat 10 between a pair of jaws 18, 19, at the same time causing a sheet 12 of paper previously wrapped around the mat to fold along prearranged crease lines 15, 16, 17 to form an expandable liner on one side of the mat, while flaps 13, 14 of the sheet are glued to the opposite side of the compressed mat to prevent expansion on that side, the reverse fold 16 being stuck down by glue or glued tapes 20 for storage of the mat as a compressed flat block, subsequent cutting of the liner 12 or tapes 20 causing the mat to curl by expansion of the side having the fold 16 so as to provide a resilient tube shell of required size to fit either wholly or partially around a pipe 21, Fig. 6, to be insulated thereby. In a modification (Figs. 7-9, not shown), the mat, which is formed of a plurality of layers arranged parallel to its edges 22, 23 (upper and lower edges as shown in Fig. 4), is retained in compressed flat condition by gluing paper only on one side, or on one side and its two edges, and inserting the mat into a cardboard container to prevent expansion of the other side during storage and transport.