baber/WOPTO huggingface dataset:
Patent GB-766065-A (GB)
Title: Improvements in the treatment of foundry moulds
IPC: B22C3/00
Filed: 1953-05-05
Abstract: 766,065. Mould materials. CATALIN, Ltd., APLEY, M., and MARTIN, W. F. May 5, 1954 [May 5, 1953], No. 12404/53. Class 83 (1). Prior to the introduction of the metal, a coating or impregnating agent consisting of a natural or synthetic non-heat-convertible resin, or a mixture of such resins in the form of a solution or dispersion in a volatile or combustible organic liquid, is deposited on or in the metal-contacting surface of the mould, and the liquid then eliminated by volatilization or combustion thereof. The resin may be shellac or modified resin or an organic polymer, e.g. a coumarone, indene or styrene resin or a condensation product of a phenol and formaldehyde or a polybasic acid with a polyhydric alcohol (alkyd resin), or a modified alkyd resin. Dispersion of finely-divided resins may also be used. The solutions may also be diluted with non-solvents or poor solvents such as ligroin, kerosene, benzene, toluene or xylene. The solutions or dispersions may also contain finely-divided solids such as silica flour or zircon in suspension in an amount from 10- 20 lb. per gallon of resin solution or dispersion. The concentration of resin is not critical and ranges from 1-50 per cent by weight of the solution or dispersion. The solution may be applied by dipping, painting or spraying. Specification 406,582 is referred to.
Patent GB-227704-A (GB)
Title: Improvements in or relating to machines for making concrete building blocks and the like
IPC: B28B7/00
Filed: 1924-05-20
Abstract: 227,704. Evans, H. W. May 20, 1924. Stationary - mould machines. - A machine for moulding concrete building blocks &c. comprises a table a, in a recess @ of which a mould is adapted to be reciprocated, an abutment plate g arranged to be slidden opposite the mould and to be received therein, and means for reciprocating the mould to compress the material and subsequently to deliver the finished block. The reciprocation of the mould is effected through cam mechanism o, p adapted to raise and lower the mould, the raising being to a greater extent when the block is to be delivered than when the material is to be compressed. The mould consists of a bed-plate d and four sides e, e, f, f hinged to the bed-plate, the sides being normal to the plate d when the mould is being filled and when the material is under compression; but are adapted to open outwardly and lie in a horizontal plane when the mould is raised for delivery. To ensure opening of the sides, heels 25 provided on the sides coact with the underside of the table, the opening movement being arranged to be progressive as the mould rises by reason of cam surfaces 26 on the mould sides. The double-throw cams o, p are mounted on cross-shafts q, r furnished at their opposite ends with intermeshing gear wheels s so that the cams may be moved simultaneously, and on the shaft r is mounted uni-directional power-transmission gearing of the kind described in Specification 227,705. This mechanism includes a gear wheel t adapted to be coupled at will with, and automatically to be disengaged from, the shaft r, and also a pair of cheek plates u, u formed with three angularly-spaced notches v, w, x. The gear wheel t meshes with a pinion 14 fast on a shaft 15, on which is also secured a worm-wheel 16 adapted to be driven continuously by a worm 17 on a shaft 18. When a pawl 11, mounted on a cross-shaft 12, is engaged with one of the notches, reciprocation of the mould is stopped; but on disengagement of the pawl by an operating handle 13, the shaft r is coupled with the transmission mechanism. In the first position, for filling the mould, the cams o, p are horizontal as shown in Fig. 2, the tops of the sides e, e, f, f being flush with the table a and the pawl 11 being in engagement with the notch v. Release of the pawl causes the shorter arms o of the cams to raise the mould against the abutment and then to lower the mould to allow the abutment to be slidden out of the way, after which the pawl 11 engages with the notch w. Further movement of the cams causes the longer arms p to raise the mould and to deliver the block as shown in Fig. 4, the pawl 11 then being in engagement with the notch x. Tongues and grooves are formed on the sides and ends of the block by means of projections 20 and recesses 21 formed on the mould sides, and a fillet 27 is provided on the mould bottom.
Patent GB-397967-A (GB)
Title: Improvements in or relating to vehicles for the transport of animals
IPC: B60P3/04
Filed: 1932-04-29
Abstract: 397,967. Animal-carrying vehicles ; collapsable vehicles. THORNE, J. H. and THORNE, I. J., (trading as THORNE & SON, J. H.), Salopia Carriage Works, Condover, Shropshire. April 29, 1932, No. 12410. [Class 108 (i).] Animal-carrying vehicles are provided in which the sides are carried by outside battens so that any expansion of the base frame is counteracted by the bulging inwards of the sides, the battens providing means whereby the sides may be secured to and detached from the base which means are also provided to accommodate supplementary decks or vertical partitions. The base frame comprises transverse members 10 and longitudinal members 11 which carry short sides 15 upon which may be superposed sides 16, 17 and front and rear ends 18, 20 secured to segmental exterior battens provided with means for securing to the base as described in Specification 394,466. The rear end 20 comprises a loading ramp and an unloading ramp 26, 27 is provided at the forward end of one of the sides, the part 27 being secured to the part 26 by battens 28, brackets 30 and a rod 31. Fig. 2 shows a channel ledge 55 into which flanges of a sheep deck may engage and serve as a support and as a drainage channel. Various arrangements of vertical partitions are described for forming three or four compartments for horses &c.
Patent GB-623390-A (GB)
Title: Improvements in windscreen wipers
IPC: B60S1/20
Filed: 1946-04-24
Abstract: 623,390. Windscreen wipers. STEWART-WARNER CORPORATION. April 24, 1946, No. 12421. Convention date, May 2, 1945. [Class 138(i)] [Also in Group XXIV] In an electric windscreen wiper of the type having a uni-directional driving-motor for oscillating the wiper blades, the rotary motion is converted into a reciprocatory motion by a mechanism 16 comprising a crank-pin 62 slidably engaging a channel member 64 attached to a driving-member 32 which is reciprocated but held against rotary movement, and to which are attached flexible cables, such as Bowden cables 20 (see Group XXIV), transmitting the reciprocation to the wipers. A worm 66 drives a worm wheel 60 carrying the crank-pin 62 which slidably engages a slot 130 in the channel 64, the latter being releasably clutched to the member 32 by a spring- pressed ball arrangement. Lever wiper mechanisms 28, 29 may be both on one side of the mechanism 16 as shown in Fig. 1 or on opposite sides. Operating-mechanism 28 comprises a sector gear 140 with a crank arm 158 to which the wire 22 is connected by a nipple operating in a slot 160 in an arm 158, and a pinion 144 resiliently clutched to a blade shaft 142 by spring pressure on a grooved plate loosely encircling the shaft and coacting with a pin extending from the shaft. In the operating mechanism 29, the wire 22 is attached directly to the blade shaft. The motor is controlled by a switch having " slow," " fast," and " parking ". positions. In the " slow position the electric motor operates with full field current, in the "fast" position the field current is reduced by a series resistor, and in the "parking"  position the motor voltage is reduced and the field winding connected for slow operation through a switch on the mechanism 16 so that a cam 102, Fig. 3, on the gear-wheel shaft 98 rotates until it depresses a plunger 110 which opens a pair of contacts on the switch and stop the motor at the desired parking position of the wiper blade.
Patent GB-348348-A (GB)
Title: Bed pan
IPC: A47K11/04
Filed: 1930-04-22
Abstract: 348,348. Bed-pans. CHAMBERS, L. A., 5330, Delmar Boulevard, St. Louis, Missouri, U.S.A. April 22, 1930, No. 12460. [Class 26.] A bed-vessel comprises a pan 1 of rigid material such as aluminium, glass, &c., and a cushion 15 which overlies the edge of the pan and rests on the surface by which the latter is supported. The bottom of the pan comprises a portion 4 of substantial area and a trough 5 leading to an outlet tube 7 which is provided with a rotatable screen 8. The cushion, which may be inflatable, is provided with an apron 16 which is placed over the outwardlyturned edge 2 of the pan and is secured by an elastic or other cord 17 or by a rib of rubber integral with the apron. In another form, the cushion is provided with a continuous web passing beneath the pan.
Patent GB-528384-A (GB)
Title: Rotary machine
IPC: F04C2/344
Filed: 1939-04-26
Abstract: 528,384. Rotary engines. KNAPP, R. T. April 26, 1939, Nos. 12493. Drawings to Specification. [Class 110 (ii)] Axially-sliding vane type. - Machines of the kind described in Specifications 452,829 and 490,588 are fitted with one-piece vanes of appreciable thickness and rounded corners. The camsurfaces forming the end walls of the working chambers are designed as correct envelopes of the blade ends having regard to their thickness and rounded corners.
Patent GB-838109-A (GB)
Title: Improvements in welding reactive metals and alloys
Inventor: TERRY CYRIL ALBERT
IPC: B23K9/23
Filed: 1957-04-17
Abstract: 838,109. Welding by fusion. IMPERIAL CHEMICAL INDUSTRIES Ltd. July 11, 1958 [April 17, 1957], No. 12521/57. Class 83 (4). Titanium, zirconium and their alloys are welded by enclosing a part only of the workpiece including the joint to be welded in a container provided with an aperture through which a welding-torch can be introduced and manipulated, passing a non-turbulent stream of inert gas through the container to displace the air and welding with an arc welding torch. A gas shielded tungsten arc torch and filler rod may be used. The container has a water jacketed lower casing 3, to which argon is admitted through apertures 14 in a conduit 12, and a removable top 8 apertured at 9 to receive the welding torch. The workpiece 5 is held in slots 4 in the ends of the top 8 and casing 3 by clamping flanges 11 and 10 to the workpiece 5. Meshes 15, 16 are interposed between the conduit 12 and the workpiece.
Patent GB-735305-A (GB)
Title: Improvements relating to curtain suspension devices
IPC: A47H15/00
Filed: 1952-05-19
Abstract: 735,305. Suspending curtains. LISLE, U. L. ORCHARD-, and GIRLING, A. H. G. May 19, 1953 [May 19, 1952], No. 12559/52. Class 52 (5). A curtain suspension device wherein the curtain hooks are raised from and lowered on to a track by means of a carrier as the curtain is being withdrawn and drawn comprises a channel-section rail 11 within which is mounted a carriage A comprising a vertical web 12 mounted on wheels 13 which run on the bottom of the track. Adjacent its trailing end the web 12 is provided with a ramp 121 and a notch 122. Curtain hooks 14 rest on rolledover sections 111 of the track when the curtain is drawn. As the curtain is withdrawn the carriage moves along the track and a hook 14 rides up the ramp 121 and is lifted from the track 11, the hooks 14 being picked up successively and packed on the web. On drawing the curtain the hooks are pulled off the web one by one, each hook being checked by momentary engagement with the notch 122 so that the material between adjacent hooks 14 is stretched to the required extent before the release of a succeeding hook. In a modification for use with curved tracks such as are used for cubicles, the carriage A is formed of a flexible web 12 to which are riveted plates 124 provided with wheels 18 and rollers 19 for guiding them in the track. The foremost plate 124 is provided with recesses 127 to receive a plurality of hooks 14, thus allowing the curtain to be bunched at the junction with another cubicle.
Patent GB-669359-A (GB)
Title: Improvements in or relating to capacity operated indicating or warning systems
IPC: G08B13/26
Filed: 1949-05-11
Abstract: 669,359. Burglar alarms. CLAESSON, P. H. E., and JOHANSSON, K. L. May 11, 1949. [May 15, 1948] No. 12598/49. Class 118 (i). [Also in Group XXXVI] A system for detecting the proximity of an object by variation of a capacity is rendered stable in operation by effecting the coupling between the antenna and the oscillatory circuit by means which maintain the capacity between the antenna and earth substantially constant with normal variations of temperature. An antenna A is connected to the grid of an oscillation generator E between the grid and cathode of which is connected an oscillatory circuit including an inductance L1 and a condenser C, a condenser C1 and high resistance R1 being connected as shown. In the anode circuit of the tube is a relay R operating an indicator. The apparatus is fed from an A.C. supply V through a transformer T, rectifier L, and filter condenser C4. When an increase in the antenna capacity C3 takes place, as by an object entering the field of the antenna, the high frequency energy between the grid and cathode of the tube E is shunted so that, due to the resistance R1, the amplitude of the oscillations is reduced. The anode current also is decreased so that the relay R operates. If the relay is adjusted to a middle position it operates also for an increase in, the anode current corresponding with a decrease in C3. The variation in capacity between antenna and earth due to variations in temperature of 20‹C should be less than 0.1 pfd. This may be effected by reducing the grid-anode and gridcathode capacities of the tube E by taking the grid terminal out direct through the wall of the tube with short leads that do not run parallel to the leads from the other electrodes. The grid is insulated from the other electrodes by glass, steatite, or other material having a dielectric constant which maintains a substantially constant value with normal variations in temperature. The condenser C1 may be constructed so that its capacity varies with temperature so as to compensate for changes in capacity of other elements connected to the grid circuit. Alternatively, the relay R may be provided with an opposing winding, connected in series with the resistance R1 dependent on temperature, so that the winding is fed with current from the rectifier. In order to reduce the effect of variations of impedance to earth of the supply source V, the generator circuit is coupled to earth through a small impedance Z1 and to the source V through a larger impedance Z2.
Patent GB-1220682-A (GB)
Title: Improvements in or relating to tyre building machines
Inventor: NICHOLLS ERNEST GEORGE
IPC: B29D30/28
Filed: 1967-03-17
Abstract: 1,220,682. Tyre consolidation apparatus. DUNLOP CO. Ltd. 13 March, 1968 [17 March, 1967], No. 12612/67. Heading B7C. A device for consolidating breaker or tread strips on to a shaped tyre carcass comprises a framework 2 carrying rollers 3 each of which is rotatably mounted on a spindle 14 attached to a block 15 pivotally arranged on each side of the framework, a pneumatic piston and cylinder mechanism (not shown) for moving the framework and rollers towards and away from the tyre carcass, and an hydraulic damper 16 for resisting the pivotal motion of the rollers when pressed against the strips to consolidate them on the carcass. The rollers may be brought back into coaxial relationship by means of a spring 22.
Patent GB-882830-A (GB)
Title: A new or improved crane
IPC: B66B9/187
Filed: 1958-04-21
Abstract: 882,830. Endless conveyers; tower cranes. FOENETER S.A. April 21, 1958 [April 27, 1957], No. 12632/58. Classes 78 (1) and 78 (4). A crane comprises a hollow tower 1, Fig. 12, having a platform 15 mounted for vertical movement inside the tower, and at least one platform or skip and a slewing jib 21 mounted for vertical movement outside the tower. The jib carries a travelling crab 37 and may also support an endless conveyer 51 carrying a second travelling crab 52, the two crabs supporting a second endless conveyer 54 which may be pivoted as indicated by the use of the hoisting gear 42. A third endless conveyer 70 may be suspended from the conveyer 54. The jib is pivotally mounted on a support 25 movable vertically on the tower by a hoist 28, and is slewed by a rope passing around a horizontal pulley 33. A tie rod 32 may be replaced by a rope for luffing the jib. The tower may be triangular or rectangular in section and preferably carries two outside platforms or skips 12, 12<SP>1</SP>, Figs. 6, 7, which may move up and down alternately on one rope or be independently controlled. The platform 15 preferably carries a concrete mixer which is supplied with materials by the skips or platforms 12, 12<SP>1</SP> and feeds the conveyer 51 via a movable shoot 58. The tower may be mounted on wheels, and after immobilization by jacks may be attached by a turnbuckle 63 to the building under construction. A second jib 76, Fig. 14, may be mounted on the top of the tower for slewing about an axis 77.
Patent GB-648762-A (GB)
Title: Improvements in or relating to building construction
IPC: E04G17/14
Filed: 1947-05-09
Abstract: 648.762. Shuttering for casting in situ. THINET, M., HOFFNER, G., FERRAZ, A., and SEIGNOL, L. May 9, 1947, No. 12655. Convention date, June 22, 1945. [Class 20(ii)] A framework for supporting shuttering 21, Figs. 1 and 2, for concrete walls comprises a base frame 1, 1', 1", 2 laid on the floor, on which is mounted U-section uprights 6 reinforced by rods 11 secured thereto at their upper and lower ends and by struts 12 which carry horizontal beams 18 connecting the uprights together and carrying scaffoldig. The uprights are. also supported by struts 4 connected to the base frame. The struts 12 and beams 18 are reinforced by a further horizontal beam 19 and oblique struts 20. The uprights 6 have tenons at the lower ends fitting in apertures 6<SP>1</SP> in the base. The parts 1, 1<SP>1</SP>, 2 of the base are connected by plates 2', Fig. 5, and pins 15. The shuttering 21 is secured to the uprights 6 by brackets 22, Fig. 12, and bars 23. The uprights are of storey height and extensions 27, Fig. 8, can be fitted for a wall of less than this height, secured by fishplates 29 with the interposition of a U-section member 2 bridging two uprights.
Patent GB-587945-A (GB)
Title: Folding handle bars for bicycles
IPC: B62K21/16
Filed: 1944-07-03
Abstract: 587,945. Folding handlebars for cycles. SCHWINN, F. W. July 3, 1944, No. 12669. Convention date, Feb. 16. [Class 136 (iii)] Folding handlebars 27, 28 are carried by means of a bolt 18 on a support 12 fixed to a steering post 11 the bolt passing through a fitting 25, 26 connected to each handlebar and arranged so that the handlebars can be rotated downwardly about the bolt to the folded position, a spring washer 30 being located under the head of the bolt urging the fittings against the support to prevent rattling and a latch member 56 being provided to hold the handlebars in the working position. A shoulder between the threaded portion 21 of the bolt and the portion 22 on which the fittings 25, 26 are mounted engages the support. Lugs 45, 46 on the support prevent the handlebars being raised by engagement with lugs 40, 41 on the hinge fittings 25, 26 of the handlebars. The latch member comprises a lever pivoted to the support at 60 and arranged so that the lever can be turned to a position in which the end 43 thereof is forced against the underside of the lugs 40, 41 to hold the handlebars in place. A spring pressed plunger 49 tends to keep the latch in the locking position. In addition to holding the handlebars in the working position the latch 56 is arranged to hold the handlebars in the folded position by means of a recess 69 in the lever which engages the lugs 40, 41 when the handlebars are folded. The recess is arranged with 'tapered surfaces so that the lever is forced out of engagement if the handlebars are pulled upwardly to bring them into a position ready for use. In Fig. 2 the chain dotted lines indicate an alternative position of the handlebars.
Patent GB-1284971-A (GB)
Title: Improvements in or relating to jacquards
Inventor: EVANS ROY
IPC: D03C3/12
Filed: 1970-03-17
Abstract: 1284971 Jacquards; face-to-face pile fabrics JOHN T HARDAKER Ltd 19 April 1971 [17 March 1970] 12682/70 Headings D1E and D1K A Jacquard hook 1 has a spring loaded lifting cord 5 that is trained around a pulley 10 so that it lifts healds 7, 11 in opposite directions. A face-to-face pile fabric is woven by the arrangement with three pairs of pile warps A, a, B, b and C, c, one pile warp of each pair being in either backing and the pile warps simultaneously changing to the other backing when the shedding of the related hook is changed.
Patent GB-932470-A (GB)
Title: Improvements in air distributor
Inventor: KENNEDY WALTER WESLEY
IPC: E04B9/02
Filed: 1962-04-03
Abstract: 932,470. Ventilators. BARBER-COLMAN CO. April 3, 1962, No. 12725/62. Class 137. In an air distributer, comprising side walls 15, 16 defining an air passage 19 and having inturned flanges 24, 23 along their downstream edges a deflecting vane 14 is mounted for pivotal movement about an axis extending along the wall 15 so that when the vane is moved across the passage 19 air is deflected by the vane 14, the wall 16 and the flange 23 and flows diagonally through the outlet aperture 13 defined by the flanges 23 and 24. Apertures 54 in the vane adjacent the pivotal axis thereof allow a restricted flow of air between the upstream and downstream sides of the vane. As shown, two walls 15 and a single wall 16 are employed to define a structure having two passageways 19, the mounting of the vanes 14 on the walls 15 producing diverging streams of air from the respective outlets 13. The air streams may be rendered parallel by mounting either of the vanes 14 on the wall 16 by means of supports 49, 51. Hinged vanes 44 are mounted on supports 41 at the upper edge of the wall 16 to regulate the amount of conditioned air entering the passages 19 from a duet 11. In the embodiment of Fig. 8 (not shown) the air distributer comprises three passages 19.
Patent GB-278981-A (GB)
Title: Improvements relating to pumps
IPC: F04B9/02
Filed: 1927-05-12
Abstract: 278,981. Peel, P. H. May 12, 1927. Cam and lever actuated pumps; stroke, varying.-The stroke of a plunger pump is varied by raising or lowering the fulcrum bar in a slot in the lever e so that the lever e, with its forked arm f straddling the cam h, is rocked in greater or less degree to oscillate the gudgeon pin d fixed in the piston rod c working in both horizontally opposed cylinders a. The lever arms f carry rollers g whereby the cam moves the lever positively in both directions. The fulcrum bar may be adjusted by hand or be coupled through linkwork to a governor p. The ends of the fulcrum bar moves in slots in each side casing.
Patent GB-1303863-A (GB)
IPC: H03K4/90
Filed: 1970-03-17
Abstract: 1303863 Sawtooth wave generators PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 17 March 1970 [20 March 1969] 12764/70 Heading H3T A sawtooth wave of adjustable linearity, e.g. for a television field time-base, is generated by a circuit substantially as shown to the left of A. In the embodiment a basic sawtooth wave is generated by charging a capacitro C 5  through R 4  and periodically discharging it through diode D 6  and switch 1. A further sawtooth is generated at K by C 2  and R 3  its slope being steeper so that diode D 6  is held off. This sawtooth is effectively integrated in C 5  and by adjusting R 8  the resulting wave at A may be linear, convex or concave as necessary to produce a linear sweep on the C.R. tube. R 12  adjusts the scan amplitude.