baber/WOPTO huggingface dataset:
Patent GB-912649-A (GB)
Title: Distributing valve assembly for pneumatic percussive tools
IPC: B25D9/14
Filed: 1960-12-19
Abstract: 912,649. Pneumatic tools. CHICAGO PNEUMATIC TOOL CO. Dec. 19, 1960 [Feb. 16, 1960], No. 43561/60. Class 124. [Also in Group XXVI] In a pneumatically-operated percussive tool a compressible resilient seal ring 57 is provided whereby fluid-tight relation is obtainable between the valve casing 24 and the surrounding wall of the distributing chamber so that leakage of pressure fluid from the inlet groove 25 around the casing to the outlet groove 39 is blocked. The seal ring may be circular in cross-section and formed of elastic rubber material. In Fig. 5, because of dimensional variations the fit between the casing 24 and the surrounding wall 23 is not as close as that in Fig. 1. The seal ring 57 will nevertheless press resiliently against the floor 59 of its channel and against the opposed wall 23 to prevent leakage around the casing from the groove 25 to the groove 39.
Patent GB-1029568-A (GB)
Title: Improvements in vibratory pile drivers
Inventor: PEREGRINE EDGAR PHILLIPS
IPC: E02D13/10
Filed: 1962-11-19
Abstract: 1,029,568. Pile driving. BRITISH STEEL PILING CO. Ltd. Nov. 19, 1963 [Nov. 19, 1962], No. 43654/62. Heading E1H. A pile gripping means forming part of a vibratory pile driver 3 comprises a grip body 4 with a fixed jaw 6 and a pivoted jaw 7 rockable towards the fixed jaw by means of a piston 9 in an hydraulic cylinder 10. The cylinder 10 is fast with the grip body 4 and the piston 9 is fast with the back face of rockable jaw 7 such that pressure from hydraulic fluid pumped from pump 14 pivots the jaw 7 about pivot pin 8 to clamp a sheet pile 5. Sealing means 16 is provided on piston 9 to accommodate the slight angular displacement of the piston and cylinder e.g. for varying thicknesses of piles 5. The power unit for supplying pressurized fluid to the cylinder comprises electric motor 11 driving through V-belt 12 and pulleys 13, a pump 14, all housed within the grip body 4. The pump pressurizes piston 9 through pipe 15a, excess oil being pumped back to oil tank 17 through a bleed valve 18 via a pipe 15b which may take a path through a cooling system 19. Alternatively the power system may be an hydraulic accumulator with pressure regulating means operating a pressurizing motor
Patent GB-1009405-A (GB)
Title: Grinding machines
Inventor: PRICE RALPH ELDRIDGE
IPC: F16H31/00
Filed: 1961-12-06
Abstract: 1,009,405. Grinding. LANDIS TOOL CO. Dec. 6, 1961, No. 43663/61. Heading B3D. A grinding machine comprises a bed, a work support mounted on the bed, a grinding-wheel mounted on a wheel slide slidably mounted on the bed for movement towards or away from the work support, a feed screw mounted on the bed, a rapid grinding feed mechanism mounted on the slide for moving the slide by acting upon a feed saw engaging means mounted on the slide, and a ratchet feed mechanism mounted on the bed and arranged to rotate the feed screw incrementally to move the wheel slide. A rotary workpiece 8 is ground by a grinding- wheel 7, having one or more units, mounted on a slide 45 movable, on a bed 10, towards and away from the workpiece. A shaft 44 journalled in the slide 45 has at its lower end a pinion or worm-wheel 46, in mesh with a feed screw 40, and at its upper end is connected through worm gearing 48, 49 with a shaft having a hand wheel 50 for setting up and also having a pinion engaging a rack on a piston in an hydraulic motor 51 which effects rapid feed. A worm-wheel 37 is secured to the feed screw 40 by a key 43 fitting inclined key ways in the feed screw and worm-wheel. Backlash in the gear train is taken up by moving the feed screw bodily endwise by an auxiliary hydraulic mechanism. The worm-wheel 37 meshes with a worm 36 on a shaft 34 connected by worm gearing 35, 33 with a shaft 11. This carries a reversible ratchet-wheel 12. Forward fine feed is affected by a pawl 19 carried by a toothed segment 16 operated by a fluid cylinder 22. At the end of coarse grinding a fluid motor 30 moves a stop 28 into the path of the segment 16 to determine the stroke of the pawl. When the work is to size, a gauge stops the operation of the feed cylinder 22, and the wheel slide 45 is retracted by a pawl 24 carried by a toothed segment 17 operated by a fluid cylinder 27, the stroke of the pawl being determined by a stop 31 adjustable by a screw 32. The pawl makes a predetermined number of strokes, so that the backward position of the slide 45 is a constant distance from its forward position, thus compensating for wear of the winding-wheel. In a modification, Fig. 6, rapid advance of the wheel slide is effected by moving the feed screw 52 axially by hydraulic cylinders 74, 75. Fast feed is effected by a pressure cylinder 66 which through gearing 68, 65, 64, 62 rotates a shaft 59 journalled in the wheel slide and having a pinion 60 engaging the thread 61 of the feed screw. Slow feed is effected by a ratchet-wheel 55 actuated by a pawl 56 to rotate a worm 54<SP>1</SP> meshing with a worm-wheel 53 slidably keyed on the feed shaft. Retraction through a fixed distance is effected by a ratchet-wheel 57 actuated by a pawl 58.
Patent GB-1362329-A (GB)
Title: Printing device
IPC: H01F7/14
Filed: 1972-09-21
Abstract: 1362329 Electromagnets PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 Sept 1972 [24 Sept 1971] 43758/72 Heading H1P [Also in Division B6] In a mosaic printer each recording pin 19 is actuated by the armature 11 of an electromagnet 1. Each armature is fastened to the E-shaped yoke of the electromagnet by a leaf-spring 13. A gap 31 along the length of the leaf-spring allows the spring to deflect when the electromagnet is energized, so the force exerted by the armature 11 on the recording pin 19 and the movement which is performed by the armature end are directed substantially along the axis of the recording pin at the area of connection to the armature.
Patent GB-1468739-A (GB)
Title: Annular rim members for vehicle wheels
IPC: B21K1/38
Filed: 1974-10-09
Abstract: 1468739 Making wheel rims; stamping; foundry moulds GEORG FISCHER AG 9 Oct 1974 [16 Oct 1973] 43833/74 Headings B3A B3F and B3Q A method of making an annular rim member for use in a wheel to receive a pneumatic tyre, comprises forming a mould cavity with a radial dimension oversize and/or undersize over an annular portion of the rim periphery, casting an iron-carbon melt into the cavity to form the rim member, removing the member from the cavity, and working the member radially to bring it to the required dimensions by means of plastic deformation. The melt may be of cast iron or cast steel and the former is treated prior to pouring to form a ductile casting whereas a cast steel member is heat treated after solidification to have the necessary ductility. The rim member is cast in a said mould, which preferably includes a hollow annular core (3), an annular pouring basin (5) and feeding duets (7), Fig. 2 (not shown). The core (3) bridges the mould portion (4) and defines the radially outer surface 19 of the rim, Fig. 6, which is shown by chain lines in the as-cast condition and is I-10% oversize. The as-cast rim 10<SP>1</SP>, Fig. 7 is moved step-by-step between shaping operations on previously cast rims along rails 30 of a press until it rests on cross-bars 32 on lifting rods 31, which raise the rim into an open ring of die segments 40 mounted on a movable ring 39. The die segments are raised by the ring and as the ring moves upwardly they are driven inwardly by sloping surfaces 37 in a guide ring 36 to form the ring 10 to its finished dimensions. The die segments are then lowered, thereby opening them and the finished rim is lowered on to the rails 30. Alternatively an undersized rim may be expanded or the rim may be formed with undersized and oversized portions which are expanded and compressed to the required dimensions respectively.
Patent GB-1526470-A (GB)
Title: Method and mould for making a laminated container
IPC: B29C49/04
Filed: 1976-10-22
Abstract: 1526470 Moulding laminated containers T  JORGENSO 22 Oct 1976 [31 Oct 1975] 44018/76 Heading B5A A laminated container is formed by vacuum forming an outer layer and blow-moulding an inner layer into it while still in the vacuum  mould 6. At position I two plastics sheets 5 are drawn by rollers 3, 8 through heater 4 and between vacuum moulds 6 and an intermediate plate 7. The moulds 6 and top closing plates 10 are advanced to grip the edges of the films against the plate 7. Vacuum is applied through the moulds 6 and air is admitted through the plate 7 to form the two halves of the container which are severed from the sheet during or after moulding, e.g. by cutters, heat or ultrasound. The moulds 6 are opened and moved to position II where they closed together about an extruded parison 2. The parison is severed and the moulds move to position III for blow moulding using a mandrel 11. Alternatively the parison may be carried to a stationary mould, and a single plastics sheet may be passed up one side of the plate 7 and down the other (Figs. 3 and 4, not shown). The outer layer may be polyolefin, polyamide, polyvinylidene chloride, polycarbonate, or meth-  acrylonitrile, and the inner layer polyolefin, polystyrene or acrylonitrile.
Patent GB-1160091-A (GB)
Title: Reciprocating Hydraulic Pumps
Inventor: BOYDELL KENNETH RAYMOND
IPC: F04B9/04
Filed: 1965-10-18
Abstract: 1,160,091. Reciprocating pumps. DOWTY TECHNICAL DEVELOPMENTS Ltd. Oct. 28, 1966 [Oct. 18, 1965], No. 44027/65. Heading F1A. In a multi-cylinder pump each inlet valve 15 is supplied with liquid from the crank-case by a separate duct 23, the ducts being inter-connected at the inlet valve by an equalizing passage 26.
Patent GB-982591-A (GB)
Title: Double-chain scraper conveyor for use in mines
IPC: E21F13/10
Filed: 1961-12-08
Abstract: 982,591. Scraper conveyers. GEWERKSCHAFT EISENHUTTE WESTFALIA. Dec. 8, 1961 [Dec. 21, 1960], No. 44062/61. Heading B8A. Lengths of channel forming the sides of a double chain scraper conveyer are connected to chains 11A which are in tension and which extend through ducts 14 provided below side section members 15. Each chain comprises lengths connected together by links 24 of which limbs 25 pass through cup-shaped plates 27 and through holes 28 in side plates 17 or angle plates 16 attached to the side section members 15. The links 24 are secured by nuts 29. An intermediate channel length may be released from a link 24 without removing tension in the chain, the link being protected from bending open by the plate 27. The chains are anchored at one end by chain tightening devices. The arrangement enables lengths of chain to be attached or removed, when it is required to add or remove a channel length. The conveyer is shown in association with a coal plough 10.
Patent GB-1239982-A (GB)
Title: Emergency valve
Inventor: PAGE WILBUR MILLS
IPC: F16H59/04
Filed: 1968-09-17
Abstract: 1,239,982. Change-speed control. CLAYTON DEWANDRE CO. Ltd. 27 Aug., 1969 [17 Sept., 1968], No. 44148/68. Headings F2D and F2V. An emergency valve permitting manual override control in the event of electrical failure of solenoid controlled valves 23 of an electro - pneumatically or electro - hydraulically operated six forward speeds and reverse gear-box (not shown) of the type disclosed in Specification 1,177,965, having electrical means for sensing the rotational speeds of the gears to be engaged in the gear-box and means for preventing engagement of said gears until synchronism is attained as described in the control valve unit of Specification 1,239,981, comprises a valve body 1 having a stepped cylinder 3 containing 1st and 2nd pistons 2, 5, spring loaded at 4 away from a disc valve 19 normally maintained closed by a spring 20. The emergency valve operates in the manner described for the identical valve in the gear control system of Specification 1,177,965, the disc valve being closed under normal operating conditions and being opened to allow manual operation of the gear-box in the event of electrical failure. Reference has been directed by the Comptroller to Specification 1,177,965.
Patent GB-1498149-A (GB)
Title: Printer
IPC: B41J1/60
Filed: 1975-10-28
Abstract: 1498149 Selective printing INTERNATIONAL BUSINESS MACHINES CORP 28 Oct 1975 [23 Dec 1974] 44234/75 Heading B6F A print element 108 is rotated for character selection by the reciprocation of rack 114. The rack 114 has two sets of teeth 116, 118 which are selectively engagable with the pinion 112 depending on the case of character to be printed; the pinion following the completion of a printing cycle; i.e. selection and impression of a character, remains in contact with the rack engaged to effect the said cycle. As shown in Fig. 4 the rack is reciprocated by follower 128 fitting in groove 130 of cam 120, which is axially movable on shaft 168. Selection of the set of teeth 116, 118 to engage the pinion 112 is effected by the movement of an interposer 156 to transmit the motion of one of the cam followers 158, 162 to forks 140 which are able to slide the shaft 132. Movement of the interposer 156 is due to pneumatic actuator 170 or an opposing spring 154. In Fig. 1 one of the followers 40, 42 rocks shaft 32 to change the set of teeth 16, 18 engaging the pinion 12. The follower 40, 42 chosen depends on the selective energization of electromagnet 48. Changing the follower can only occur when the radially smaller part of disc 54 is aligned with lobe 56.
Patent GB-1556953-A (GB)
Title: Regulatable driving means for fabric roller take down mechanism for fiat knitting machine
IPC: D04B15/90
Filed: 1977-10-25
Abstract: The drive of the fabric draw-off roller (13) takes place by means of a transmission rotating-field magnet (15) which generates a torque independent of position. This torque is adjusted in dependence on the type of fabric (12) and the pattern. It is thus possible to obtain a drawing-off force which is always matched as closely as possible to the knitted article (12) and which allows a fabric draw-off treating the material with care. <IMAGE>
Patent GB-1010119-A (GB)
Title: Improvements in or relating to locking mechanisms for safety harnesses
Inventor: HEARN FREDERICK WILLIAM
IPC: B60R22/415
Filed: 1962-11-27
Abstract: 1,010,119. Spring drums. AMALGAMATED ROADSTONE CORPORATION Ltd. Jan. 20, 1964 [Nov. 27, 1962], No. 44829/62. Heading B8B. [Also in Divisions A3 and F2] A safety harness comprises a spring reel which is locked by a pawl pivoting on a spindle into engagement with an annular ratchet to prevent further withdrawal and to allow retraction when the vehicle decelerates, the pawl being manually operated by means comprising a plunger and a manually actuated cam. The harness is wound on the spindle 10 mounted to rotate in the body member 11 with apertured fixing lugs. At a high speed of withdrawal of the harness the pawl pivots on the spindle block 19 against the action of a U-shaped spring and engages the annular ratchet 22 in a chamber of the body member. The pawl is manually pivoted to brake the spindle by a lever actuated cam 27 which presses a two-diameter plunger 24 inwards against spring pressure so that the larger diameter part of the plunger pivots the pawls into engagement with the ratchet 22. A spring between the plunger and the pawl allows the harness to retract.
Patent GB-1452327-A (GB)
Title: Flue silencers
IPC: F23J13/00
Filed: 1973-09-21
Abstract: 1452327 Silencers for chimneys BRITISH GAS CORP 20 Sept 1974 [21 Sept 1973] 44359/73 Heading F4J [Also in Division Fl] A flue or duct silencer comprises a plurality of perforated containers suspended in the flue &c and containing sound absorbent material. As shown, perforated tubes 1 interconnected by flexible couplings 2 are suspended in a chimney 7 below a cowl 6, the tubes being filled with glass fibre and divided by plates 5. The tubes have a diameter of 25 mm, and a wall thickness of 0.27 mm the holes being of 8 mm diameter and arranged spirally. The invention is said to alleviate the noise arising from motorways, airports or railway stations or the noise from fans in air ducts &c.
Patent GB-1328892-A (GB)
Title: Quarrying apparatus
IPC: B65G37/00
Filed: 1971-09-23
Abstract: 1328892 Quarrying apparatus COMPAGNIE DES CIMENTS BELGES 23 Sept 1971 [25 Sept 1970 6 Sept 1971] 44480/71 Headings B8A and B8E [Also in Division E1] An installation for evacuating rocks from a workings to an endless conveyer comprises a chassis 1 movable over the ground of the workings, a carriage 23 movable on a rolling path along the endless conveyer 22, a jib 8 connecting chassis 1 to carriage 23 and comprising a first arm 9 articulated to the chassis and carrying a first endless conveyer 40 which discharges via hoppers 44, 77 on to a second endless conveyer 45 carried by a second arm 10 of the jib, which second arm is articulated on pivots 17, 25 to the first arm and the carriage respectively, conveyer 45 discharging via hopper 78 to conveyer 22, in which pivot 17 is suspended from a structure (i.e. upright 16) supported by the chassis or the carriage and pivot 25 comprises a trunnion mounted in a bearing round a vertical axis, the bearing or trunnion being articulated to arm 10 about a horizontal axis transverse to conveyer 45 and the trunnion or bearing being articulated to carriage 23 about a horizontal axis transverse to conveyer 22, the horizontal axes being in the same plane. In Fig. 10 (not shown) a second jib supports a scoop wheel (114), both jibs being supported by tackles (85, 113). In another embodiment (Figs. 11 and 12, not shown) a vehicle is provided connected to the chassis (or carriage, see Fig. 14, not shown) by a second jib similar to the first.
Patent GB-1338670-A (GB)
Title: Sealed enclosure for an electric switch
IPC: H01H13/06
Filed: 1971-09-24
Abstract: 1338670 Switch casings SQUARE D CO 24 Sept 1971 [2 Oct 1970] 44557/71 Heading H1N In an arrangement for obtaining a "dustignition-proof" manually operated switch assembly on a panel 10, Fig. 3, of a sealed enclosure, one or more oil-tight switches 26, 26A and an oil-tight manual actuator assembly 22 are mounted on the panel 10 using intermediate inside and outside mounting members 74, 76 having flat faces 106, 96 rigidly engaging the opposite sides of the panel 10 at an annular region surrounding panel apertures 16, 17. In the embodiment, mounting members 74, 76 are cup-shaped, the inner member 74 having apertures 114, 116 aligned with the actuators and providing for the insertion of hollow threaded bushes 78, 80 engaging the external member 76 whereby the members 74, 76 are clamped to the panel 10. Threaded pins 128 inserted through the bushes 78, 88 provide a mechanical connection between the oil-sealed manual operating buttons 58, 60 and the switch actuating plungers 28, 28A. The switches 26, 26A are attached to the inner member 74 by bolts 34, 34A preferably using an intermediate assembly plate 132. The oil-tight manual actuator assembly is clamped to the outer mounting member 76 by a threaded cup 86 having a flange 130 engaging sealing washers 88.
Patent GB-1061029-A (GB)
Title: Circuit arrangement having a variable frequency response and phase response to an alternating electrical input, and a defined transfer function
IPC: G06G7/625
Filed: 1963-11-13
Abstract: 1,061,029. Electric analogue calculating. TELEFUNKEN PATENTVERWERTUNGSG.m.b.H. Nov. 13, 1963 [Nov. 24, 1962], No. 44815/63. Heading G4G. A circuit arrangement for varying an input electrical quantity in accordance with the transfer function (in which W 0  = 2#f 0 , f 0  being a selectable limit frequency, D is an adjustable attenuation constant and p = jw, where w = 2#f, f being the frequency of the input) employs not more than two direct-current amplifiers of which one has a feedback circuit including both a resistor and a capacitance so as to produce both an integrating and adding capability. In one embodiment (Fig. 1) two D.C. ampli. fiers 1 and 2 are arranged in parallel. The first amplifier has resistors 4 and 3, whose ratio is two, in its feedback and input connections respectively, to give a constant transfer function of 2. The second amplifier has a variable input resistor 5, value ¢R 1 , and a feedback circuit containing two capacitors 6 and 7, value C, the junction point of these capacitors being connected to earth through a resistor 9, value R 2 . It may be shown that the transfer function of this amplifier is The transfer function of the overall network of Fig. 1 is therefore This is of the same form as equation (1) when and D = and any desired limit frequency W 0  and attenuation constant D may be selected by suitable adjustment of R 1  and R 2 . A resistor such as 16 is included across all amplifiers having capacity feedback circuits to correct for zero shifts. A second embodiment (Fig. 2, not shown) utilizes two D.C. amplifiers (17) and (18) in series. Amplifier (17) is provided with an input resistor (21), value R, and feedback capacitor (22) and resistor (23) of value C and R respectively. The transfer function of this first stage is The output from this stage is applied through an input impedance consisting of a capacitor (24) value C in parallel with a resistance (25) of R value -to the second amplifier (18) where q<SP>2</SP> feedback path contains only a capacitor (26), value C. The second amplifier is also provided with the original output through a resistor (27) R of value -. The total transfer function is then x 1  where w 0 <SP>1</SP> = - RC q Comparing with equation (1) w 0  = -, RC 1-x D = ¢(q + -), where q and x represent q potentiometer settings. A modification of this circuit is described (Fig. 3, not shown) in which resistors in the feedback circuits are replaced by capacitors in the input circuits. An embodiment using only one D.C. amplifier (29) (Fig. 4, not shown) has a feedback path including two resistors (32) and (35) of value R, two capacitors (33) and (34) of value C and a variable resistor (36) of value R 2 . The input resistor (30) is of value R 1 . The transfer function for this arrangement is If R is chosen so that then this equation is of the required form, and A modification of this circuit is described (Fig. 5, not shown) to enable a wide range of values of D to be set.
Patent GB-1203103-A (GB)
Title: A process for removing hydrogen sulphide and carbon dioxide from fuel gas or synthesis gas containing the same
Inventor: GRUNEWALD GERHARD WILFRIED
IPC: B01D53/14
Filed: 1967-10-03
Abstract: 1,203,103. Purifying combustible gas. METALLGESELLSCHAFT A.G. 3 Oct., 1967 [14 Oct., 1966], No. 44926/67. Heading C5E. H 2 S and CO 2  are removed from fuel gas or synthesis gas by a process similar to that described in Specification 1,196,658. Scrubbing liquid containing CO 2  is divided into two main portions. The first traverses line 16, H 2 S absorber 4, flash tower 7, regenerating column 8, and heat exchangers 85, 94 for returning to the CO 2  absorber 5 cooled and completely regenerated; the second is cooled at 6 and partially regenerated in flash tower 9, optionally with CO 2  stripping at 93, for returning via 13 to a coarse scrubbing zone 51 of the absorber 5. Flashed-off gases containing H 2  and CO are returned via line 18 and compressor 42 to the gas input, and other flashed-off gases leave at 28 and 29. Ammonia evaporators 6, 54 are provided. Xylene may be used as scrubbing liquid.
Patent GB-1529408-A (GB)
Title: Process and device for the colorimetric analytical determination of substances in solution
IPC: G01N21/75
Filed: 1976-10-29
Abstract: 1529408 Colorimeter MERCK PATENT GmbH 29 Oct 1976 [31 Oct 1975] 45062/76 Heading G2J This consists of a block with two vertical cylindrical openings 3 for reagent tubes 2 and a horizontal slot 4 displaceably accommodating a coloured plate 5 below the tubes. The analytical determination of substances is by compensating the colour of sample and reference substances compared in tubes 2 by using plate 5. The plate, guided by side pieces 6 is a strip of cardboard with pairs of coloured spots or bands with graded depth of colour under the reference, and a constant colour under the sample. If the solutions are weakly coloured the bottoms of tubes 2 are flat and if they are strongly coloured, rounded, the card being closer than the focal plane of the tube bottom.