baber/WOPTO huggingface dataset:
Patent GB-1082615-A (GB)
Title: Improvements in or relating to prefabricated structural members of the kind suitable for use as floors, bridge decks, ceilings, walls or as roofs
IPC: E04B1/348
Filed: 1964-10-05
Abstract: 1,082,615. Floor slabs; wall slabs; sectioned buildings. TEXAS INDUSTRIES Inc. Oct. 5, 1964 [Oct. 7, 1963; Feb. 17, 1964], No. 40591/ 64. Headings E1A, E1B and E1W. A pre-fabricated building panel, for use as a floor, wall, or ceiling slab, comprises a metal external framework, metal or timber internal bracing members, and a reinforced foamed concrete base slab. In the embodiment of Figs. 8-10, the channel-sectioned framing members 52, which may have an anti-corrosion coating, support transverse timber joists 59 separated from the concrete by a moisture-repelling layer 63, the panel also comprising glass wool layers 70, 71, hardboard 72, and a cork insulating layer 67. The transverse joints may be replaced by trapezoidal-sectioned timber joists by SC-, or top hat-sectioned (Fig. 13) steel joists or by rectangular precast concrete joists. The reinforcement in the slab is spotwelded to the steel joists, or attached to the timber joists by cramps. In the embodiment of Fig. 13, particularly for use as a wall panel, ornamental strips or plates 88 may be embedded in the concrete. The metal framework can be extended to form a box-like framework, and the slab cast to form one face 39 (Fig. 6), several such frameworks being placed side-byside to form, e.g. a bungalow, (Fig. 7, not shown).
Patent GB-949206-A (GB)
Title: Improvements in or relating to conveyor installations
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B65G47/00
Filed: 1959-11-30
Abstract: 949,206. Conveyer systems. FISHER & LUDLOW Ltd. Feb. 27, 1961 [Nov. 30, 1959], No. 40656/59. Heading B7L. In a conveyer installation in which load carriers 13 are propelled along a track 12 by dogs 14 depending from a driving chain 11 running on a track 10 and an advancing carrier is arrested at a position spaced in rear of a stationary carrier by the operation of one of a number of actuating elements 16 by a stationary carrier to move an associated next in rear carrier drive disengaging element 15 into an operative position to disengage the dogs 14 from driving engagement of the next in rear carrier 13 there is associated with at least the foremost drive carrier disengaging element 15 a stop member 17, movable into and out of the operative position with a disengaging element 15 to preclude continued forward movement of the carrier 13, which is mounted on a support 18 and is displaceable relative to the support 18 in a forward direction against the loading of a spring 22 such that an application of a driving force to a carrier 13, arrested by the stop member 17, to move the carrier 13 forwards, displaces the stop member 17 forwardly to engage an operating member 32 of a power cutoff device 31 to cut off the driving power to the chain 11. In the arrangement shown, the stop member 17 is L-shaped in plan view and is provided with a nose portion 23 which lies in the path of a carrier driving member 26 when in the operative position. If, at the position of arrest of a carrier 13, the driving dogs are not lifted out of driving engagement with a carrier driving member 26 or a succeeding carrier abuts the stationary carrier the stop members 17 is moved forwards against a spring 22 and pins 28 on the stop member 17 move out of a notch 27 and into a recess 30 in the support member 18 and the stop member 17 in so moving depresses a member 32 to actuate a power cut-off switch 31 to stop the movement of the driving chain 11. Specifications 819,343, 875,082, 875,083, 949,204, 949,205 and 949,207 are referred to.
Patent GB-1363504-A (GB)
Title: Torque responsive pressure devices
IPC: F16H13/14
Filed: 1971-09-01
Abstract: 1363504 Expanding-pulley gear H VOGEL 1 Sept 1971 40679/71 Heading F2D A torque (and also in some embodiments, speed) responsive device for applying adjustable axial pressure to a member such as a flange 5 of an expanding pulley, splined to a companion flange 3, freely rotatable on a shaft 1 and axially adjustable by a manual fork 7, comprises a diametral pin 10 (fixed to the shaft 1 in Fig. 1), carrying rollers 11 which, under torque load, apply axial pressure to the flange 5 through wedge shoes 15 carried in an annular channel between the rollers 11 and a roller race 17 in the hub 25a of the flange 5, means being provided to adjust the shoes 15 in the channel to vary the angle a of contact between the shoes 15 and rollers 11 to vary the torque responsive axial pressure. As shown, such ajdustment is produced by the axial adjustment of the pulley flange 3 whereby the torque-responsive axial pressure is reduced by increase of contact angle α as the pulley flanges are closed. For this purpose the shoes 15 are carried on pivot pins 16 engaging slots in plates 12, forked around the shaft pin 10 and shifted axially through levers 19 by the axial movement of the pulley flange 3, the closing movement, to dotted position of which, turns the shoes 15 to the dotted position, producing an increased contact angle α<SP>1</SP>, thereby reducing the axial pressure component of the torque. In Figs. 5 to 7, not shown, the two pulley flanges are simultaneously adjusted through thrust bearings by interconnected levers, and the plates (equivalent to 12 of Fig. 1) which adjust the wedge shoes are replaced by flats and inclined grooves (56) in the shaft, the diametral pin (42) being axially slidably in a shaft slot. In Figs. 8 to 10, not shown, one pulley flange (72) is fixed to its shaft, and the diametral pin (80), together with its wedge shoe assembly, is carried by an internal plunger (79) which can be adjusted axially in a shaft bore through a thrust bearing (90) which adjusts the axial spacing of the pulley flanges and hence the speed ratio. The shoe pins (85) slide in asymmetric slots (87, 91) in the hub of the axially fixed flange to produce a different pressure response in accordance with the direction of rotation. Springs (77) preload the pulley flange (73) axially. In Figs. 11 and 12, not shown, such a plunger (97) is axially adjusted by centrifugal masses (103) pivoted to the shaft, whilst in Fig. 13, not shown, such axial adjustment is produced by hydraulic or pneumatic pressure, proportional to shaft speed, acting on the plunger (113) through a rolling diaphragm. In these cases the axial spacing of the pulley flanges for ratio control, and also for varying the torque-responsive pressure on the wedge-shoes, is speed-responsive.
Patent GB-940429-A (GB)
Title: Improvements relating to locks
Inventor: WHITEHURST LAWRENCE
IPC: E05B29/00
Filed: 1958-12-19
Abstract: 940,429. Locks. LOWE & FLETCHER Ltd. Dec. 18, 1959 [Dec. 19, 1958], No. 41108/58. Heading E2A. The subject-matter of this Specification is substantially identical with that described in Specification 940,428, but the claims are concerned with a lock having a spindle 4 rotatably mounted in a casing 1 the spindle being adapted to be releasably locked to the casing by a plurality of slidably mounted spring- loaded-pin tumblers 3 which in their locking position engage both the spindle and a bush 2 secured in the casing, the tumblers being displaceable by a key 9 to a position in which they are removed from engagement with the spindle to unlock the latter, a rocker 11 being provided which is movable between a locking position in which it locks the spindle to the casing and an unlocking position in which the spindle is not so locked, the rocker being adapted to prevent withdrawal of the key from the lock when the spindle is moved relative to the casing subsequent to the insertion of the key into the lock, and to be moved towards its locking position by withdrawal of the key from the lock.
Patent GB-1153866-A (GB)
Title: Improvements in or relating to Hydraulic Cylinders and Rams for Hydraulic Mine Roof Supports
Inventor: TOWN FRANK
IPC: E21D23/00
Filed: 1965-09-28
Abstract: 1,153,866. Hydraulic jacks. W. E. & F. DOBSON Ltd. 21 Sept., 1966 [28 Sept., l965] No. 41128/65. Heading B8J. An hydraulic advancing cylinder 1 and ram 2 for a mine roof support system (not shown) is connected at 2a to a sectionalized working face conveyer (not shown). The cylinder 1 is fitted at one end 1a with an annular block 1b and is closed at the other end by a valve block 5 having passages 7, 8 normally isolated from each other by a slide valve member 15 loaded by a spring 16 to project into the cylinder 1. The ram 2 is formed at the piston head end with a cylinder bore 2c in which is a bush 19 through which slides an auxiliary piston 22 with an outer piston head 23 normally held retracted by a compression spring 24. In normal operation the valve member 15 is depressed at the end of the contraction stroke of the device and connection is established between the passages 7, 8 to pass a signal to investigate the next operation of resetting the support to the roof. If towards the end of the contraction stroke of the cylinder 1 an obstruction prevents completion of the stroke the fluid back pressure in front of the piston head 23 drops and the working fluid pressure acting in the cylinder base 2c through a duct 2d on the small area of the auxiliary piston rod 22a overcomes the decreased back pressure and the force of the compression spring 24 to extend the auxiliary piston 23 so as to operate the valve member 15 to pass a signal by connecting the passages 7, 8.
Patent GB-1127184-A (GB)
Title: A process for the production of hydrocarbon-soluble mixed catalysts for the polymerisation of buta-1,3-diene
Inventor: SCHON NIKOLAUS
IPC: C08F136/06
Filed: 1965-09-28
Abstract: 1,127,184. Polymerization catalyst. FARBENFABRIKEN BAYER A.G. 28 Sept., 1965 [1 Oct., 19641, No. 41238/65. Heading B1E. [Also in Division C3] A polymerization catalyst comprises the reaction product of an aluminium trialkyl, aluminium dialkyl hydride or aluminium alkyl dihydride and a titanium-iodine compound which is a reaction product of titanium tetraiodide and a 1,2-epoxide, the molar ratio of titanium tetraiodide to 1,2 epoxide being in the range of from 1:0.5 to 1:1.5. The alkyl groups of the aluminium alkyl have from 1 to 20 carbon atoms. The aluminium alkyl is reacted in the absence of oxygen and moisture at temperatures of between -10 and +50C with a solution in an organic solvent of the reaction product formed from titanium tetraiodide and the 1.2-epoxide in molar ratio from 1:0.5 to 1:1.5. Titanium tetrachloride or titanium tetrabromide may be mixed with the titanium tetraiodide-1,2 epoxide reaction product, the molar ratio of the total titanium component to aluminium alkyl being in the range of from 1:1 to 1:20. In the Examples, the catalysts are formed from the reaction product of Ti I 4  with propylene-1,2-oxide, and aluminium tri-isobutyl; the reaction product of Ti I 4  with vinyl ethylene oxide (butadiene 1,2- monoxide), and aluminium triethyl; the reaction product of Ti I 4  with cyclohexene 1,2 oxide, and aluminium tri-isobutyl; the reaction product Ti I 4  with epichlorhydrin, and aluminium tri-isobutyl.
Patent GB-985729-A (GB)
Title: Process for wet spinning vinyl chloride polymers
IPC: D01F6/20
Filed: 1963-10-18
Abstract: 985,729. Vinyl chloride polymer filaments. SOC. RHOVYL. Oct. 18, 1963 [Oct. 23, 1962], No. 41310/63. Heading B5B. A solution of vinyl chloride polymer in cyclopentanone or cyclohexanone is extruded into an azeotropic mixture of water and a monohydric, aliphatic alcohol containing 3 or 4 carbon atoms. Preferred alcohols are isopropyl, n - propyl, and sec - butyl alcohols. " Vinyl chloride polymer " is defined as polyvinyl chloride, superchlorination products thereof, and copolymers containing a major proportion of polyvinyl chloride. In one example, a solution of polyvinyl chloride in cyclohexanone is spun into a bath of water/isopropyl  alcohol azeotrope, the filaments are passed through three similar baths, a water bath, and are then stretched in hot air. Cyclohexanone is recovered from the coagulation baths by fractional distillation.
Patent GB-1046068-A (GB)
Title: Copolymers and process for preparing them
IPC: C08G2/00
Filed: 1965-10-01
Abstract: 98.89 to 89% of trioxane, 1 to 10% of a cyclic ether and 0.01 to 1% of bis-[2,3-epoxy-propyl] ether are polymerized together at 50 DEG to 100 DEG  C. in the presence of a catalyst.  Specified cyclic ethers are ethylene oxide, propylene oxide, epichlorhydrin, glycol formal, diglycol formal, and 4-chloromethyldioxolane.  The catalyst may be a cationic catalyst, e.g. a Lewis acid and may be inactivated by treatment with ammonia or a methanolic or acetonic solution of an amine.  The polymer may be subjected to hydrolysis to remove the unstable terminal semiacetal units.
Patent GB-915140-A (GB)
Title: Improvements in or relating to voltage and current regulators
Inventor: BYLES THEODORE AVERILL
IPC: H02J7/14
Filed: 1960-12-05
Abstract: 915,140. Automatic voltage and current control. MOTOROLA Inc. Dec. 5, 1960, No. 41817/60. Class 38 (4). In an automatic voltage and current regulator for a generator 20 the conduction of a transistor 31 in series with the generator field winding 20b is controlled by a transistor 35 responsive to a certain output voltage change and by a transistor 39 responsive to a certain output current change, control elements of the transistors 35 and 39 being connected to a voltage divider network comprising resistors 41, 43, 47 and 49, thermistors 51 and 53 and a ballast tube 45. The voltage-sensitive transistor 35 conducts when a given generator voltage is reached, corresponding to the breakdown voltage of a Zener diode 55, to decrease the conduction of transistor 35 and limit the generator output voltage. The current responsive transistor 39 is biased by the combined voltage across resistors 25 and 49; the voltage across resistor 49 does not vary with variation in generator output voltage since the resistor is in series with the ballast tube 45 which maintains a constant current through the voltage divider circuit. The value of resistor 25 in the load circuit is therefore selected so that as a predetermined current level is reached a potential drop is produced which causes conduction of transistor 35 thereby controlling transistor 31 to decrease the generator output. The thermistor 53 compensates the transistor 35 for ambient temperature effects and has a temperature-response-characteristic related to the requirements of a battery 22 to be charged, e.g. the regulated voltage may be 14 v. at 150 F. and 15.8 v. at 0 F. The thermistor 51 compensates transistor 39 for ambient temperature effects. The regulator may include a power diode 29 which prevents reverse current flow from the battery 22 and which may be used in conjunction with a switch 27 and a transformer 65 to provide means for charging the battery 22 from household power lines.
Patent GB-1324864-A (GB)
Title: Annular friction member for brake or clutch
Inventor: ELY W E
IPC: F16D69/00
Filed: 1970-09-01
Abstract: 1324864 Friction discs for brakes; friction clutches B F GOODRICH CO 1 Sept 1970 [2 Sept 1969] 41838/70 Headings F2C and F2E A friction disc assembly 10 for use in a brake or a clutch comprises a steel torque ring 11 formed with a series of lugs 12 for interfitting engagement with lugs 13 of a torque tube 14, segmental facing members 15 which are secured by rivets 16 to opposing faces of the torque ring 11 and interposed between the facing members 15 and connected thereto a plurality of segments 22 of heat absorbing materials such as beryllium, steel or aluminium. As shown in Figs. 1, 2 the torque ring 11 is positioned at the inner periphery of the disc assembly 10 and the torque tube 14 is a non-rotating part attached to a wheel supporting structure, but the torque ring could be at the outer periphery and have a connection with a rotating wheel structure. The facing members 15 are of steel and are engageable with other friction members of the brake or clutch in use and as shown they are formed with friction lining material 28. The segments 22 each has a curved inner peripheral face 23 for seating against a face 24 of the torque ring 11 and each has an aperture 25 which receive studs 26 welded to the facing members 15, pins 27 being force-fitted into the holes within the studs 26. The segments 22 have approximately one-half the circumferential length of the facing members 15 and the members 15 on one side of the segments 22 overlap the members 15 on the other side of the segments 22 by approximately one half their circumferential length. The facing members 15 have lugs 29 and half-lugs 31 complementary to and rivetted to by the rivets 16, the lugs 12 of the torque ring 11. As shown in Fig. 4 the facing members 32 have edges 33 bent over the edges 34 of segments 35. The facing members 32 have indentations 38 which fit within indentations surrounded by edges 37 of the segments 35 and rivets 39 and 16<SP>1</SP> clamp the segments 35 between the members 32; the indentations 38 are free from friction lining material 42.
Patent GB-1051777-A (GB)
Title: Electric surface heaters
IPC: B64D15/12
Filed: 1964-10-14
Abstract: 1,051,777. Deicers for aircraft &c. D. NAPIER & SON Ltd. Oct. 14, 1964 [Oct. 14. 1963], No. 41948/64. Heading H5H. In a deicer for tapered parts, e.g. of a wing or windscreen, a uniform conductive coating is divided into sections such as 20 + 22; 18 + 24; 16 + 26; which are connected in series to provide equal resistance groups, connected in parallel across the supply.
Patent GB-1285693-A (GB)
Title: Actuator drive apparatus
Inventor: BELL CHARLES ANTHONY
IPC: G05B15/02
Filed: 1968-09-04
Abstract: 1285693 Automatic control NATIONAL RESEARCH DEVELOPMENT CORP 3 Sept 1969 [4 Sept 1968] 42065/68 Heading G3R A reversible actuator is controlled by a digital computer in which stores having contents of either sign are counted down to zero at selectable rates individual to each store to produce a resultant control signal corresponding in magnitude and sign to the algebraic sum of the count-down times. In Fig.1, converters 10, 11, 12 convert analogue voltages representative of measured quantities of a process to signals having corresponding frequencies. Gates 13, 14, 15 are operated periodically for separately selectable periods so that pulse counts corresponding to the magnitudes of the variables are applied to stores 16, 17, 18. These counts are transferred in succession to a store 21 and compared at 29 with pulse counts from a store 28, selectable by a matrix, to correspond with a desired value which may vary according to a programme if process conditions are correct. Any error is passed to a store 33, 34 or 35 corresponding to the variable concerned. By feeding back, during appropriate intervals, the current error signal from comparator 29 to store 28, and the previous error signal from store 33, 34 or 35 through gate 43, 44 or 45 to store 21, the comparator 29 also compares successive errors and produces pulse counts corresponding to rate of change of error which are stored at 46, 47, 48. These rate components are then added to the error signals with due regard to sign by logic circuits 51, 52, 53 and the resultant signals applied to operate actuators 54, 55, 56 for times and in directions appropriate to the correction of the errors. The addition is effected by counting down the two stores at different rates which are selected to give the desired weighting to each component. Logic circuits 51, 52, 53 are arranged so that if the error and rate signals have the same sign corresponding adjustments of the actuator occur in succession, but, if the two signals are of opposite sign, one adjustment of the actuator is made in the appropriate direction during the remainder of the count down of one store after the other is empty. The actuators are reversible induction motors controlled by transistor-operated relays. A second, similar control system may be associated with other process variables which may include an independent variable. One of these two systems, when operating, then over-rides and inhibits the other.
Patent GB-1440388-A (GB)
Title: Impact absorbers
IPC: F16F9/50
Filed: 1973-09-07
Abstract: 1440388 Shock absorber valves; valves JONAS WOODHEAD Ltd 7 Sept 1973 42197/73 Headings F2S and F2V In a piston-cylinder shock absorber having a valve member 44, 46 controlling flow out of the cylinder working chamber on one side of the piston 26, the valve member is biased by spring 48 on to a seat 52 and has such opposed differential areas exposed to the pressure in the working chamber that the pressure exerts a net pressure force tending to lift the valve member from its seat. The valve member is a stepped spool sliding in a stepped bore. The valve may be in the piston (as shown) in the cylinder wall, or outside the cylinder. It may control flow from the cylinder working chamber to a reservoir (which may be inside the piston-rod) or to the other side of the piston (as shown). The shock absorber is used horizontally to mount a vehicle bumper. On impact the pressure in the chamber to the left of the piston 26 builds up. However the pressure force acting on the valve disc 46 to augment the spring 48 holding it on the seat 52 is less than the pressure force acting via a bore 67, on a sliding piston part 60 of the valve member. When the pressure becomes very high the net pressure force acting on the valve member becomes sufficient to overcome the spring bias, and the valve disc 46 lifts off its seat 52, allowing flow through a radial passage 56 into a chamber behind the piston, to compress a spring 38 (which may be replaced by spring washers or gas). On rebound, flow takes place through a bleed path 68, 70.
Patent GB-1513047-A (GB)
Title: Process for the production of coated papers
IPC: D21H19/40
Filed: 1975-10-15
Abstract: 1513047 Coated paper DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 15 Oct 1975 [18 Oct 1974] 42206/75 Heading B2E Lightweight paper produced from pulp and having a unit weight in the range from 45 to 100g/m<SP>2</SP>, is coated on both sides with a composition comprising a coating pigment, a binder, water and chemical additives and dispersed in the composition, 3-30% by wt. of the coating pigment of a synthetic amorphous product consisting of at least one of silica, sodium aluminium silicate and calcium silicate, with an average primary particle size of less than 150nm, an average secondary particle size of less than 10Ám and a BET- specific surface area of less than 300m<SP>2</SP>/g, and then the paper is glazed. The synthetic amorphous product is produced by adding acidic aluminium or calcium salts or acid alone to aqueous water-glass solution to precipitate the product. The coating composition may contain china clay as pigment, self thickening latex (butadiene-styrene or styrene-acrylic acid ester) or starch as binder, calcium stearate and surfactant. The glazing is done with a calendar.
Patent GB-1412945-A (GB)
Title: Electrical score indicating mechanisms
Inventor: CROSSMAN P E
IPC: A63F7/22
Filed: 1972-07-05
Abstract: 1412945 Air-bed table game BRUNSWICK CORP 5 July 1972 [13 Sept 1971] 42431/74 Divided out of 1412942 Heading A6H The electrical score indicating mechanism of the air-bed table game described in Specification 1412942 is claimed.