baber/WOPTO huggingface dataset:
Patent GB-889874-A (GB)
Title: Improvements in control systems for positioning a movable object
IPC: G05B19/35
Filed: 1959-01-27
Abstract: 889,874. Electric copying-machines. REEVES INSTRUMENT CORPORATION. Jan. 27, 1959 [Jan. 19, 1958], No. 2984/59. Class 38 (6). In a positional control system for the worktable of a drilling or boring machine in which the table is moved by a reversible servomotor in accordance with a digital input said to be from a punched card or magnetic tape, and in which coarse and fine positional transducers are provided, the fine position is measured by a twophase induction potentiometer, alternate phases of which are selected to interpolate between successive minimum coarse increments. Only one axis of movement is shown, others may be added.  Coarse control.-A four-digit binary coded input from an undisclosed source is applied to the digital/analogue converter 17, Fig. 5 (not shown), which provides an A.C. output for comparison with the output of an A.C. energized potentiometer 20 driven by the work-table 10. Any error is amplified by the valve 36 and amplifier 27 to energize a two-phase servomotor 14 driving the table 10. When the error signal drops below a selected value, the relay 43, energized by an error amplifier 40, drops out and changes the amplifier 27 over to the fine control circuit. Fine control.-A four (or more) digit binary code from an undisclosed source is applied to a digital/analogue converter 18, Fig. 6 (not shown) arranged so as to produce zero output when the table is to be positioned midway between two of the smallest increments available under coarse control, and A.C. signals of increasing magnitude and opposite phase for positions further away and on opposite sides of this mid-point. This signal is compared with a selected output from a linear induction potentiometer 56 which has a stator 58 and two rotor windings 59, 60 at right angles to each other. The rotor is driven by the work-table 10 so that: one complete revolution corresponds to four of the least coarse increments. Zero output occurs in winding 59 when the table is midway between zero and the first increment and again when midway between 2nd and 3rd increments, and so forth, and so this winding is selected by relay 70 whenever the table is in one of these ranges. This is effected by controlling the relay 70 in accordance with the least significant coarse digit, i.e. the least coarse increment, so that it is changed over at each step. Similarly, the winding 60 is used between the 1st and 2nd, 3rd and 4th &c. increments. Each time a winding turns through 180 degrees, the stator winding 58 is reversed in phase by a relay 62 to prevent an unwanted reversal in the phase of the output signal. The relay 62 is energized in accordance with the least significant digit but one of the coarse control so as to change over every second coarse increment. Any error between the outputs of the digital/analogue converter 18 and the inductive potentiometer 56 is amplified at 27 to control the two-phase servomotor 14 driving the table 10.
Patent GB-243927-A (GB)
Title: Improvements in apparatus for walking on water
IPC: B63B34/56
Filed: 1925-02-03
Abstract: 243,927. Kalth÷ner, P., and Steuerlein, G. Feb. 3, 1925. Boots for walking on water.-Relates to shoes or boots for walking on the water, of the kind which are coupled in pairs and parallelly guided each shoe being provided with a paddle or producing resistance when the other is moved forward, According to the invention, each shoe is providec with a paddle adapted to be displaced in the direction of movement, and positively connects with the paddle in the other shoe, so that when one shoe is advanced, the other is also advanced to produce an effective advance equal to double the length of the apparent step. Each shoe comprises a float A, B, having paddles 10, 10<a>, mounted on rods 9, 9<a> slidably and rotatably journaled at the sides of the floats. The paddles are connected by clips 13, 13a to ropes 8, 8a passing round pulleys 7, 7<a> and connected tc arm 5, 5a on the other shoe. The arms 5, 5a extend from one shoe to the other as shown in Fig. 4, and are provided with rollers 2, 2a to run freely on rods 1, 1<a>. In use, a foot is placed on each of the foot boards 4, 4<a>, and the levers 19, 19<a> are manipulated to immerse and withdraw the paddles at the appropriate times.
Patent GB-731470-A (GB)
Title: Improved safety device for use in motor vehicles
IPC: B60R21/02
Filed: 1953-02-03
Abstract: 731,470. Vehicle bodies. PLUM, D. Feb. 3, 1953 [Feb. 5, 1952], No. 3057/53. Class 108 (1). [Also in Group XIV] A passenger crash support, and reading desk (see Group XIV), comprises a flat rigid and non- rotatable member 10 of steel - reinforced plastic supported on a pillar 6, and a book rest strip 8 spring - mounted in the member 10 and provided with a rubber beading 9. In modifications the strip is made of rubber and is positioned at the bottom of the member 10 and may be hinged thereto.
Patent GB-664920-A (GB)
Title: Improvements in shaft bearings
IPC: F16C19/54
Filed: 1949-02-03
Abstract: 664,920. Vibratory mechanism. JOHNSON (MACHINERY), Ltd., C. H. DEARDEN, B. B., and HARTLEY, J. A. March 22, 1950 [Feb. 3, 1949], No. 3064/49. Class 80 (iv). [Also in Group XXXIV] A vibrating box for a concrete vibrator comprises parallel geared shafts 1, 2 having intermeshing gear wheels 3, 4 and carrying unbalanced weights 5 .. 8, the weight 8 also constituting a driving pulley. The shafts 1, 2 are mounted in ball or roller bearings disposed in removable flanged bushes 9 which are mounted in sockets in the machine frame.
Patent GB-213723-A (GB)
Title: Improved combination of mechanism for controlling the movements of power driven machines employed in the cutting of the pile of pile fabrics
IPC: D06C13/08
Filed: 1923-02-02
Abstract: 213,723. Havannah Mills Co., Roger, G., and Roger, G. Feb. 2, 1923. Pile, cutting; stop-motions.-In power-driven pile-cutting machines the driving and drag rollers for the fabric are operated through a differential gear device, abnormal movement of the knifeholder controlling braking-devices mechanically to alter the speed ratio in the differential gear. As shown, the driving-pulley e, Fig. 1, is geared through a differential gear-box to shafts v, u, i. The shafts v, u are connected by bevel gearing to the shafts of the drag and driving rollers b, c, Fig. 3, respectively. The shaft i, and the shaft y of the drag roller b carry brake-drums k, z adapted to be engaged by brake-shoes 1, 3 controlled by lever and cam mechanism by a link 10, the brake being applied to one drum as the pressure of the other brake-shoe is removed from the other drum. When the brake-shoe 1 is raised out of contact with the drum k, the drag roller b ceases to rotate. This is effected by connecting the link 10 by chain and lever mechanism 14, 15, 13, 12, 16 to a lever 17 connected to the knife-holder 24. When the knife-holder moves either to the right or left, the link 10 is moved to the left and the machine is stopped. The lever 12 may be controlled by hand. An additional brake-drum may be provided on the driving-roller c.
Patent GB-1531863-A (GB)
Title: Valve for packages containing pressurized gas
IPC: B65D83/14
Filed: 1976-01-27
Abstract: 1531863 Pressurized dispenser valves PRECISION VALVE CORP 27 Jan 1976 [29 Jan 1975] 03115/76 Heading F1R A valve for a pressurized dispenser comprises a flow passage formed between a mounting cup 3 and a housing 1 secured thereto, and a gasket 8 clamped between a rim 7 of the housing 1 and an end-wall 9 of the cup for sealing a discharge passage, the gasket having peripheral edges which contact a surrounding wall of the cup and which are separated by portions which do not contact the wall and a marginal portion 18 between a clamped region a of the gasket and the edges which is accommodated in a clearance space 20 between the housing 1 and cup 3, whereby during filling of the dispenser through a filling aperture 22 provided in the end-wall the peripheral edges are displaced from the surrounding wall and the marginal portion compressed and stretched to open a flow passage from the filling aperture, between the end-wall and gasket, and round the peripheral edge.
Patent GB-160063-A (GB)
Title: Improvements in houses built of ready made wooden building sections
IPC: E04B1/10
Filed: 1920-02-02
Abstract: 160,063. Een, J. B. Feb. 2, 1920. Huts; portable buildings.-In houses &c. built of ready-made wooden sections, the latter are interconnected and locked together. Fig. 1 shows wall sections of the ground and first floors respectively connected to the floor joists and panels. The framings 3 of the sections and the end of the joist are formed with grooves 7, 13 as shown with which co-operate projections as shown. The parts are drawn into close contact by means of wedgeshaped pieces 8, 16 forming part of a corner fillet and a corner skirting respectively. Fig. 2 shows wall corner sections interconnected in a similar manner, the framings 20, 21 being cut as shown or in a stepped manner as indicated in dotted lines and the whole joint tightened by the corner fillet 25. Packing-material 27 is provided.
Patent GB-1525993-A (GB)
Title: Surgical drape
IPC: A61B19/08
Filed: 1976-01-28
Abstract: 1525993 Surgical drape JOHNSON & JOHNSON 28 Jan 1976 [29 Jan 1975] 03289/76 Heading A5R A surgical drape for covering part of a patient's head comprises a flexible sheet having a hand receiving pocket formed at one end whereby a nurse can manipulate the drape from its folded state with her hands in the pocket and secure it to the patient using an adhesive strip 60 attached to the underside of the sheet beneath the pocket. The pocket is formed by a cuff 32 that is either integrally formed or separately attached at one end of the sheet so as to be connected with the sheet top edge 24 at the cuff top edge 34. The cuff is also in one form provided with longitudinal lines of securement 46, 46' to the sheet laterally inwardly of the sheet side edges to form the pocket. In another form a separate envelope is secured to the cuff underside and sheet top surface. The pocket may be reinforced by an overlaid strip laminate of liquid absorbent and impermeable plies and the cuff need only be as wide as the pocket. For packaging and storage the sheet is folded about fold lines 1F-6R, the number and letter designating the order of the fold and whether it is forward or reverse.
Patent GB-765521-A (GB)
Title: Improvements in or relating to superheater headers
Inventor: MOHR FERDINAND
IPC: F22G3/00
Filed: 1955-02-04
Abstract: 765,521. Steam superheaters. SCHMIDTSCHE HEISSDAMPF-GES. Feb. 4, 1955. No. 3324/55. Class 123(3) A header, especially for a locomotive steam superheater, is formed by welding together steel plates and comprises channels 1, 2 for saturated and superheated steam respectively, channel 1 having a central inlet connection 3 whilst channel 2 has an outlet connection 4 at each end. Finger chambers 6 are arranged in intermeshing relationship between the channels 1, 2, each chamber consisting of an inverted U-section member, which may be of fabricated construction or in the form of a casting or drawn section, closed at one end by a plate 10 and at the underside by a thick plate 8 having holes 9 into which the ends of the superheated tubes 7 are forced by clamps 12 and drawbolts 11. The drawbolts have T-heads 14 which engage in depressions in corrugated straps 15 welded to the upper edges of the finger chambers to prevent the bolts from turning. Alternate finger chambers are welded at the open end into apertures in the opposing faces of the channels 1, 2. In a modification, the inlet and outlet channels are separated by a common partition and the finger chambers are made in two lengths, the shorter chambers being welded to one channel whilst the others pass through that channel and are welded into openings in the common partition.
Patent GB-574840-A (GB)
Title: Improvements in variable controlled electric oscillators
IPC: H03J3/00
Filed: 1943-03-01
Abstract: 574,840. Automatic control systems for high frequency oscillators. GENERAL ELECTRIC CO., Ltd., and GLADWIN, A. S. March 1, 1943, No. 3374. [Class 38 (iv)] Oscillation frequency. An oscillator arrangement comprising a variable frequency oscillator and a master, e.g. crystal, oscillator from which a range of harmonics are derived, any one of which may be selected to co-operate with a discriminator to maintain constant a desired frequency of the variable frequency oscillator, has mechanical 'gearing interconnecting means for selecting respectively the required harmonic and the standard oscillator and the response or characteristic frequency of the discriminators whereby two adjustments only are required te select a given output frequency. Differential gearing or the equivalent is employed. The Figure shows two arrangements adapted for use when the output frequency is not a linear function of the position of a tuning shaft 1. In the first the harmonic selector dial 5, which is coupled to a shaft 2, and the dial 6 of the discriminator, which is adapted to control shaft 9 by the action of its output, have switches G H, respectively in series with the actuating coil of a relay A, contacts B2 of a relay B responsive to output of one sense from the discriminator, and a cam-operated switch N, K. A reversing motor 7 operates a crank 8 to oscillate the casing of the differential gear 3 and to close the switch N, K during oscillation in one sense only. The switches G, H can close only when the setting of dials 5, 6 is completed so that the relay A operates as soon as the tuning of the oscillator 4 has been brought close enough to produce excitation of relay B, whereupon contacts A2 close and contact A1 changes over to put the motor under control of relays B and C. Contacts A3 also close to change over a clutch 10 whereby the final correction of tuning and stabilization is effected by a vernier device 11. In the second arrangement the final tuning and stabilization is effected by the direct output of the discriminator operating through relay contacts A4 on a reactor valve 13.
Patent GB-329347-A (GB)
Title: Improvements in drying machines for fabrics
IPC: F26B11/18
Filed: 1928-12-15
Abstract: 329,347. Pierce, H. May 7, 1928, [Convention date]. Divided on 311,222. Air and gases, controlling direction of flow of; driving-mechanism, applications of.-A unit for fabric-drying apparatus such as described in Specification 311,222 comprises a casing, a heating chamber, pairs of driving rollers, a cylinder within the casing having driving discs engaging with the driving rollers, and means for raising the cylinder from the driving rollers. In the apparatus shown, which is that described in Specifications 311,222 and 329,348, the perforated cylinder 24 is mounted in a casing 1, and is supported and driven by discs 30, 31, which engage V-shaped grooves 29 in the cylinder. The driving shafts 32, 33 of the units may be directly coupled to those of adjacent units. A timing device is connected with means for raising the cylinder from the driving discs which comprises discs 45 which engage the grooves 29, and are raised by a spring 46 through levers 40, 42. The timing device also releases a sliding door 3 which is opened by a spring 10, at the same time closing a door 15 through which drying air is supplied through the heater 14 by a fan 20. The timing device comprises a rack 65 which normally engages a pinion 94 but which can be released by the operator and set in a predetermined vertical position according to graduations on the casing 59. A pivot 78, Fig. 14, carries a latch 80 which engages the door 3, a latch 83 which engages a bar 74 connected to the lever 40 and an arm carrying a sliding block 86. The closing of the door 3 releases the latch 83, and allows the lever 40 to be depressed by the pedal 41, lowering the cylinder on to the driving discs, the bar being held down by the latch 83 as shown in Fig. 14. The pinion 94 is actuated through two ratchet mechanisms 103, 114, Fig. 7, by a rod 112 eccentrically pivoted on the cylinder. A lug 71 on the rack moves the block 86 into the path of a lug 90 on the cylinder whereby the latches 80, 83 are released, the door 3 being opened and the cylinder raised from the driving discs into engagement with brake blocks 38.
Patent GB-1457983-A (GB)
Title: Production of longitudinally seam-welded metal tubes
IPC: B23K9/025
Filed: 1975-01-27
Abstract: 1457983 Welding by fusion; making longitudinally jointed tubing KABEL - UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 27 Jan 1975 [8 Feb 1974] 3419/75 Headings B3A and B3R In a method of producing a longitudinally seam-welded metal tube, comprising trimming the longitudinal edges of a metal band, forming it by bending about a lengthwise axis into a tube having a longitudinal slit, and welding the longitudinal edges together by arc welding, the metal band is superficially freed of oxides by chemical treatment, at least in its edge regions, before the welding step is undertaken, for arc stabilization and exclusion of oxide from the weld seam. Example metal bands are copper, copper alloy, steel, aluminium. The treatment chemical may be hydrazine or an agent supplying hydrazine, said hydrazine or agent being in concentrated form or diluted, e.g. by water or alcohol. The tube may be for cable or metal wire sheathing or piping and the method is particularly suitable for thin walled tube, i.e. less than 0À2 mm wall thickness. As shown, a metal band 2 is continuously fed from a reel 1, through a degreasing unit 3 using an organic solvent, e.g. trichloroethylene or perchloroethylene, a deoxidizing bath 4 containing hydrazine bromide, a neutralizing (deoxidantresidue-removing) bath 5 containing, e.g. water or alcohol, trimming and slit tube forming units not shown, a gas-shielded are welding unit 6, a clamping jaw welded-tube hauling unit 7, and a tube corrugating unit, to a cable drum 11. For the treatment of heavily oxidized steel or aluminium bands, at least the edge regions of the band may be mechanically dressed whilst in the deoxidizing bath, e.g. by dressing, after wetting by the hydrazine or said agent, by rotating brushes impregnated or wetted with said hydrazine or agent.
Patent GB-211467-A (GB)
Title: Process for the improvement of vegetable fibres
IPC: D06M11/60
Filed: 1924-02-11
Abstract: Vegetable fibres which have been treated, without tension, by acid, particularly concentrated nitric acid, and have thus undergone a modification analogous to mercerization, are further treated with ammonia in the form of gas or aqueous solution.  The wearing qualities of the product are greatly increased and the fabrics obtained closely resemble wool.  A concentrated lye of ammonium nitrate may be obtained by the repeated re-charging and re-using of the ammonia solution.
Patent GB-577493-A (GB)
Title: Roof construction of buildings
IPC: E04B1/21
Filed: 1944-02-25
Abstract: 577,493. Roof construction. GLOVER, C. W. Feb. 25, 1944, No. 3543. [Class 20 (iv)] In an apex joint for preformed concrete roof ribs of angle form, transverse ties 7 extending between successive pairs of ribs at apex level, are connected to the ribs by the brackets 17, secured to each of the ribs. Further, one of the ribs may have an arcuate depression 4 at the end of the rib and the other an engaging arcuate projection 3, or both may have depressions in which a roller is housed. In the form shown the transverse tie 7 has a packing piece 15 interposed between it and the angle brackets 13 secured to the bridging piece 17 which is bolted to the ribs 1 and 2. The transverse ties may have reinforcing rods 9 and 10.
Patent GB-1157843-A (GB)
Title: Vehicle Supporting Platform Structure for a Garage
Inventor: KLAUS KASPAR
IPC: E04H6/06
Filed: 1967-01-24
Abstract: 1,157,843. Mechanical garages. K. KLAUS. 24 Jan., 1967 [1 Feb., 1966], No. 3549/67. Heading B8E. A platform structure comprises two vehicle supporting platforms 1, 2 arranged one above the other, the structure being mounted within a garage well and being pivotable so as to give selective access to the platforms. The platform 2 is pivoted at 13 to a base frame 3 and the platform 1 is pivotally supported on the frame by rods 4, 5. A ram 30 moves the platforms between the alternative positions. In alternative embodiments the platforms are moved by a ram through a lever pivoted at one end of the well, the lever is connected to the platforms through links replacing the rod 5, the platforms are interconnected by a telescopic or flexible member or are rigidly interconnected.
Patent GB-288541-A (GB)
Title: Thin walled inflatable rubber articles and methods of manufacturing same
IPC: A63H3/06
Filed: 1928-02-06
Abstract: 288,541. Dorogi, I., Dorogi, L., and Dorogi es Tarsa Gummigyar R-T., Dr. April 11, 1927, [Convention date]. Inflatable toys; dolls.-The extensibility of thin-walled inflatable rubber toys is reduced by applying to them a flexible lacquer-like, water insoluble coating, preferably of cellulose derivatives, which reduces the stretching capacity by at least one half. The lacquer may be applied to the exterior or interior or both of an article, or may be enclosed between sheets of rubber. In the case of internal application the solvent may be evaporated by passing a current of air through the article which is kept expanded by throttling the air outlet, or the solvent may be allowed to diffuse through the rubber. Numerous methods of forming articles are described; thus they may be made by die stamping, and the lacquer applied to the partly or wholly inflated article, or the articles may be formed in or on moulds, the lacquer or rubber being applied first. The lacquer may be applied to parts only, and its thickness may be varied, to vary the extensibility of different parts of the article. This enables celluloid heads, ebonite feet, &c. to be attached to rubber bodies of dolls without distortion at the junctions.
Patent GB-928680-A (GB)
Title: Improvements relating to resilient cushioning elements
IPC: A47C27/14
Filed: 1961-05-11
Abstract: 928,680. Laminates. B. G. HOOD, and R. S. HOOD. May 11, 1961 [June 1, 1960], No. 3647/63. Divided out of 928,679. Class 140. [Also in Group XIV] A resilient cushion has identical upper and lower surface portions 16 of polyurethane or other plastics foam having a relatively weak load bearing strength and a core portion 18 of plastics foam stronger in load-bearing capacity, a flange 20 being moulded in portions 16 and then skived off to expose virgin foam before adhesive is applied to the parts 16 to secure them together.
Patent GB-1368464-A (GB)
Title: Apparatus for the continuous separation of fine particles from liquor
IPC: B01D33/00
Filed: 1971-02-02
Abstract: 1368464 Moving band filter W E HOPE M J HOPE and T W McNEIL 21 Jan 1972 [2 Feb 1971] 3673/71 Heading BID A filter for cleaning effluent before discharge or re-use comprises an endless filter band whose upper run is guided through a filtrate tank 20, the upper surface of the band being slidably engaged by three walls 25, 26 which define a space into which liquid to be filtered is delivered. Walls 26 diverge (Fig. 2, not shown) and extend beyond where the band leaves the filtrate in tank 20, the filtrate level being maintained at or above minimum level X by overflows 21, 22. The band is cleaned of solids by rotary brush 40 and washed by spray 41 before re-entering tank 20. In Fig. 1 the liquid delivered to the filter is the filtrate from a similar filter 10', but could alternatively be from a different filter or treated with flocculant. The walls 25, 26 are vertically adjustable and carry resilient foam sealing strips on their lower edges. As shown the filter band comprises separate wedge wire panels whose frames are carried by chains and seal together where they overlap on straight runs (Fig. 3, not shown). Alternatively a continuous woven or reticulate band of metal or plastics may be used.