baber/WOPTO huggingface dataset:
Patent GB-529701-A (GB)
Title: An improvement in or relating to hopper feed mechanism for textile carding and like machines
IPC: D01G23/04
Filed: 1939-06-07
Abstract: 529,701. Hopper feeders for carding engines &c. HAIGH & SONS, Ltd., J., and CROWTHER, J. June 7, 1939, No. 16650. I[Class 120 (i)] In order to minimize the variations which occur between successive weighs in the hopper feeding mechanism of a carding engine or the like, the trap door, past which the cotton, &c., is fed into the weigh pan, is made in sections, one or more of which is or are closed a certain time before the completion of each weigh so as to reduce the area of the opening through which the cotton falls; the closing of the remaining sections of the trap door and the cutting off of the feed is effected by the usual mechanism. As shown the trap door e is made in three sections, the centre section being fast on a shaft f operable by the ordinary mechanism, e.g., that described in Specification 258,999, [Class 120 (i)], and the end sections being carried by a sleeve rotatable on the shaft. The arm b carrying the weigh pan a has a vertical arm h on the side of the pivot c remote from the pan, the arms carrying a pin h' resting on the end of a counterbalanced trigger i pivoted on a pin i carried by a bar j pivoted at the slotted end j<SP>1</SP> on a fixed pin k; by varying the counterbalanced weight c<SP>2</SP> of the trigger or its position the friction exerted by the trigger against the pan h<SP>1</SP> can be varied to vary the point in the weighing operation at which the trigger is released. A lever n fixed to the sleeve on the shaft f is connected by a pivoted link m with the bar j and to a spring n<SP>1</SP> which tends to rotate the lever n to close the end sections of the trap door. As weighing proceeds the pin h<SP>1</SP> rides along the trigger until it slips off the end thereof, the trigger being then moved by the weight c<SP>2</SP> into the path of a rotating ratchet r which moves the bar and removes a pivoted catch o in the link m from a block p fixed to the shaft f; the spring n<SP>1</SP> then rotates the lever n and sleeve to close the two end sections of the trap door, the completion of the weighting proceeding in the normal manner through the centre section of the door. An adjustable stop s limits the movement of the lever n and a finger t on the trigger engages the pin h<SP>1</SP> after it has moved clear of the friction surface of the trigger and checks the movement of the arm b until it is controlled by the usual mechanism. The movement of the lever n in closing the end sections of the door moves the bar j to carry the trigger clear of the ratchet r and a cam-actuated arm u then engages the trigger and rocks it to a position in which the pin h<SP>1</SP> re-engages the trigger when the pan rises after it has been emptied.
Patent GB-562250-A (GB)
Title: Improvements in or relating to reinforced concrete floor constructions
IPC: E04B5/23
Filed: 1942-11-24
Abstract: 562,250. Floors. FLOORING CONTRACTS (LONDON), Ltd., and RENNIE, J. A. Nov. 24, 1942, Nos. 16650/42 and 8851/43. [Classes 20 (ii) and 20 (iv)] In the construction of a floor with precast concrete wedge-shaped beams the spaces between which are filled with concrete or with hollow tiles held together by concrete, the shuttering h at the bottom of the beams is held by hanger bolts engaging fittings embedded in the beams. The fittings may comprise screwed sockets receiving the bolts or of plates with key-hole slots engaging heads on the bolts.
Patent GB-564698-A (GB)
Title: Improvements in and relating to anchoring devices for gun carrying vehicles
IPC: F41A23/32
Filed: 1942-11-24
Abstract: 564,698. Field carriages. SPECIALTY EQUIPMENT & MACHINERY CORPORATION. Nov. 24, 1942, No. 16681. Convention date, Dec. 22, 1941. [Class 92 (i)] A gun supporting platform is provided with a pair of spaced legs at one end or each end, the legs being movable to supporting positions about axes transverse to the platform frame and carrying pivotally mounted ground gripping plates formed with downwardly extending projections, means also being provided to lock the legs in their supporting positions. In the construction shown, the armoured vehicle 11 having a rotatable turret 10 is supported at its rear end by wheels 12 and at its forward end by a pair of legs 14 pivoted to the vehicle frame at 16. Each leg is of telescopic construction and is fitted with a wheel 20 formed with a number of circumferential grooves. Anchoring is effected by means of ground gripping plates 30 and pairs of blocks 40, Fig. 6. Each plate is fitted with spikes 32 and has in its upper surface a series of grooves corresponding with those in the wheels 20. The blocks are similarly grooved or corrugated along their bases 46 and inner sides 50, and have straps 54 which are passed around the wheels. When the parts are assembled the various corrugated surfaces interengage and the blocks are locked in position by pins which pass through flanges in the plates 30 and through holes 52 in the blocks. Locking means 90 are provided for holding the legs in the vertical position. In a modification, Figs. 8-10 (not shown), pairs of legs are provided both at the front and rear of the vehicle, the ground-gripping plates being pivoted directly to the legs, the wheels and blocks being dispensed with.
Patent GB-972900-A (GB)
Title: Improvements in or relating to curable organosilicon compositions
IPC: C08K5/00
Filed: 1963-04-29
Abstract: The novel silicone compositions, curable to elastomers on exposure to moisture, are substantially identical to those of Specification 962,061, except for the titanium compounds which, in the present invention, are siloxytitanium compounds which fall into 2 main classes, viz. (1) those containing 4 organosiloxy radicals per Ti atom and (2) those containing from 1 to 3 organosiloxy radicals per Ti atom with the remaining valencies of Ti being satisfied by organic radicals, hydroxyl radicals and oxygen atoms of Ti-O-Ti linkages. Examples are given.  Uses: in caulking and coating applications and in insulating electrical equipment.  Specification 762,819 and U.S.A. Specification 2,843,555 also are referred to.
Patent GB-930747-A (GB)
Title: Hydrostatic press for an elongated object
IPC: B01J3/06
Filed: 1962-05-02
Abstract: 930,747. Forging-machines. BAROGENICS Inc. May 2, 1962 [May 24, 1961], No. 16887/62. Class 83 (4). [Also in Group XXIX] Apparatus for subjecting an object 24 to high pressure, for example, 2,000 to 200,000 atmospheres, comprises a housing 10 containing a number of wedge-shaped pressure-multiplying elements 16, 17, 18 which are arranged around and define with their inner faces 16<SP>11</SP>, 17<SP>11</SP>, 18<SP>11</SP> an elongated cavity, the ends of which are closed by end pieces 26, 27, the inner face of each element being of smaller area than the outer face 16<SP>1</SP>, 17<SP>1</SP>, 18<SP>1</SP> of that element and the elements being movable between the end pieces towards the centre of the cavity to compress an object within the cavity when fluid pressure is applied to the annular space 22 between the outer faces of the elements and the housing. Each element may consist of a number of rigidly-connected portions, the inner portions 16c, 17c, 18c being of hard material, such as tungsten carbide. The elements are enclosed within a rubber sleeve 19 secured at its ends by rings 20, 21 to shoulders 11, 12 of the housing and strips 25 prevent extrusion of the sleeve into gaps 39 between the elements during a compressing operation. The ends of the cavity for the object 24 are closed by end pieces 26, 27 which may be secured to the ends 11, 12 of the housing or be secured to each other by tie bolts 28 passing, with clearance, through holes 29 in the elements, the arrangement being such that the end pieces do not restrict movement of the elements when fluid pressure is supplied through a passage 23 to the space 22. The object to be compressed is embedded in a normally rigid material, such as aluminium silicate or pyprophyllite which becomes viscious under high pressure, the material ensuring that pressure is uniformly transmitted to the object and entering the gaps 39 to form a seal. Piston-andcylinder devices 30 interconnect the elements and when supplied with fluid pressure through pipes serve to separate the element. Electrical heating elements (not shown) may be provided to heat the object while it is under pressure. In other embodiments, the cavity may be of square, hexahedral, octahedral or polygonal cross-section with sides of unequal length and four, six or eight elements may be used. The inner surfaces of the cavity may be planar or curvilinear so that the workpiece has an irregular cross-sectional shape. Specifications 899,523 and 906,962 are referred to.
Patent GB-236561-A (GB)
Title: Improvements in or relating to mining apparatus
IPC: E21C29/22
Filed: 1925-07-01
Abstract: 236,561. Sullivan Machinery Co., (Assignees of Holmes, M. P.). July 3, 1924, [Convention date]. Wagons with load supports adjustable in height.-A wheeled truck is adapted to carry a mining-machine which may be inverted so as to cut in different planes, and the truck is propelled by means adapted to be connected to the machine when the latter is in either position. In Fig. 2, the truck 1 removably supports a reversible mining machine 9 such as is described in Specification 211,475, [Class 68 (i), Excavating earth &c.], and the horizontal shaft carrying the feed sprocket 22 of the machine is provided with an internally toothed clutch member 30, Fig. 3, which engages with a complementary clutch member 31 on a shaft 32 carried by the truck. The shaft 32 drives the truck through reversing bevel gearing controlled by a handle 41, spur gearing 44, 45, and chain gearing 48, 49; the shaft 38 of this transmission carries a brake controlled by a handle 51. The truck has a removable pivoted drop front 7. In Fig. 5, the machine 9 is carried by a frame 57 adjustably connected to the truck by pivoted screw jacks 63. The, truck is driven from a shaft 59 through a chain 60, the shaft 59 being maintained in correct position relative to the rear axle of the truck by means of a member 70 pivoted to the frame and truck and comprising parts 71, 72 pivoted at 73. Specifications 181,036, 233,365, and 248,408, [all in Class 68 (i), Excavating earth &c.], also are referred to.
Patent GB-499719-A (GB)
Title: Artificial slab or stone for building purposes
IPC: C04B28/18
Filed: 1938-06-07
Abstract: In the production of artificial stone blocks, a mix comprising at least 50 per cent (dry weight) of highly porous foam slag and a hydraulic matrix consisting of slate ash or slate-lime, or sand and lime, is formed into blocks and then subjected to a steam hardening treatment.  Granulated blast-furnace slag may be added to the mix.
Patent GB-1445296-A (GB)
Title: Electrical discharge machining
IPC: B23H11/00
Filed: 1974-04-18
Abstract: 1445296 Electro-erosion INOUE-JAPAX RESEARCH Inc 18 April 1974 [21 April 1973 21 Aug 1973] 16915/74 Heading B3V In a method of electrically discharge machining a workpiece 25, gases produced during the machining operation are drawn off from a chamber 34 defined by the surface of a machining liquid 24 in a work tank 21 and c cover 30 of the tank 21 so as to maintain the chamber 34 at a sub-atmospheric pressure and the gases are converted into clean air before they are discharged to the atmosphere. In one embodiment, spindle 27 carrying the electrode 26 is movable through an aperture 31 in a cover-plate 30 which is movable to close the work tank 21 by hydraulic cylinders 32a, 32b. The spindle 27 is surrounded by a bellows 29 attached to a machine head 28 and the cover-plate 30 to define a closed chamber 34 above the surface of the machining liquid 24 which is supplied from a tank 37 via a pump 36 and a conduit 38. The chamber 34 and the conduit 38 are connected by conduits 42 and 41 to an aspirator 40 to maintain a sub-atmospheric pressure in the chamber 34 to prevent combustion of the gases produced which are drawn off into the tank 37. The gases are discharged through a duct 43 containing a catalyst bed 44 including a heater to facilitate oxidation of the gases. In another embodiment (Fig. 1, not shown), the gases produced are drawn by a blower (17) through passages (15) in an electrode spindle (6) and into a filter (18) before being discharged to atmosphere. Any separated oil is returned to the tank via a conduit (20). Machining liquid is circulated from a reservoir through the electrode (5) and a conduit (8).
Patent GB-676303-A (GB)
Title: An improved mechanical stone thrower
IPC: E21F15/06
Filed: 1949-06-27
Abstract: 676,303. Mechanical stone throwers. NATIONAL COAL BOARD. MILNE, G. S., MAYES, G., and SMILLIE, J. Feb. 20, 1950. [June 27, 1949] No. 17007/49. Class 78 (i). [Also in Group XXI] Figs. 1 and 2. Stone fed into opening 20 is discharged through outlet 24 by arms 11 which are secured to conical spreader 18 secured to shaft 10 rotated from driving shaft 32 through belt 33. Outlet 24 has an outer upturned floor edge and is detachable from the rest. Fig. 5 The stone thrower is made in a unit with a jib-loading coalcutter 25 being fastened thereto by bars 27, the stone being conveyed by belt 34 travelling over rollers 41 and between guides 36 supported by supports 38 and being then discharged by plough 42 into opening 20 of the stone thrower. The driving belt 33 is driven by the coalcutter.
Patent GB-1271961-A (GB)
Title: Drainage devices for liquid containers
Inventor: PERKINS PETER THOMAS
IPC: F16L21/00
Filed: 1969-04-01
Abstract: 1,271,961. Drain plugs. MARSTON RADIATORS Ltd. 25 March, 1970 [1 April, 1969 (2)], Nos. 17034/69 and 17035/69. Heading B8T. [Also in Division F2] A drainage plug for a radiator comprises a resilient outer member 4, and an inner member 6. The plug is inserted into the drain hole in the bottom of the radiator 1 with the head 16 of the inner member in chamber 13 of the outer member; the inner member is then pulled down until head 16 is in chamber 12. In this position the plug seals the drainage hole, since the inner member is forced by head 16 against the drainage hole wall 3. Abutment 11 prevents the plug being forced into the radiator. Channels (21), Fig. 4 (not shown), may be provided to permit the radiator to be drained without removal of the plug. The upper chamber 13 of the outer member may be dispensed with, so that, in the open position head 16 protrudes into the radiator, channels (29), Fig. 5 (not shown), being provided to facilitate drainage. The outer member may be attached to the radiator by a rib and groove joint (33), (34), Fig. 8 (not shown).
Patent GB-562961-A (GB)
Title: Improvements in or relating to the production of building members from plaster board
IPC: B28B11/00
Filed: 1942-12-02
Abstract: 562,961. Moulding plaster board. RUSSELL, E. D. B. Dec. 2, 1942, No. 17140. [Class 87 (i)] [Also in Group V] Plaster board consisting of plaster enclosed within two covering plies of deformable material, e.g. paper, is moulded into channel, box or other sections before the plaster has set. Fig. 2 shows apparatus for producing a simple U-shaped channel. As the plaster board 11 advances to the left from the forming rolls (not shown) on an endless belt 12, stationary folders 18 turn the side portions of the board through 90 degrees. The portions are pressed against a stationary rectangular former 19 by travelling belts 23 until the plaster has set. To produce sharp corners on the moulding, the lower ply of the board is scored before passing between the forming rolls. The marginal excess of the upper (inner) ply is glued to the lower ply. Fig. 4 shows modified folders 18 for forming a box-section; in this case, the surplus on one side of the upper ply is cut off by a stationary knife and a roller applies glue to the surplus 15 on the other side, the surplus 15 being pressed against the inside of the moulding .by the core 19 on the inside and a horizontal belt on the outside. A strip of paper 17 may be glued to the putside of the joint. A channel section having thickened edges 29, as shown in Fig. 6, may be made in two stages-first, forming the thickened edges between a lower ordinary roll and an upper profiled roll, and-second, turning up the edges of the resulting sheet around a former 30.
Patent GB-1389327-A (GB)
Title: Method of preparing a printing grid for printing
IPC: G03F7/12
Filed: 1972-04-13
Abstract: 1389327 Photo-mechanical printing screens FRITZ BUSER AG 13 April 1972 [13 April 1971 21 June 1971 3 Aug 1971] 17189/72 Heading G2M [Also in Division B6]  1. A method of making a stencil for screen printing having an imaged stencil layer on a grid having interstices between the grid lattice thereof, the method comprising filling the interstices between the lattice grid with a soluble filler and forming a smooth continuous composite surface comprising the exposed grid lattice and the soluble filler located only in the interstices between the grid lattice; applying a continuous photo-sensitive, photo-hardenable layer of a predetermined constant thickness to form the stencil layer directly over the smooth surface of the exposed grid lattice and the filler in the interstices between the lattice; imagewise exposing the photo-sensitive layer to photo-harden the exposed areas of the photosensitive layer; selectively removing the parts of the layer of photo-sensitive material which were not photo-hardened to produce said imaged stencil layer; and thereafter removing all the soluble filler using a solvent. In embodiments (a) the bared parts of the screen are partially etched through the apertures in the imaged photo-sensitive layer before removal of the filler to provide channels from the apertures overlying the screen filaments to the interstices in the screen thus enabling fine detail to be printed; (b) the printing screen is strengthened by a lacquer which is applied to the inner side of the screen, excess lacquer being sucked from the apertures in the imaged photo-sensitive layer; (c) a first image in the form of a raster image is formed from the photo-sensitive layer, the spaces between the raster lines are filled with lacquer and excess ground away to form a smooth surface, a second photo-sensitive layer applied, imagewise exposed, developed, dried and hardened to form the printing image, and the fillers removed; (d) as (c) but a further raster pattern formed from another photo-sensitive layer before formation of the printing image; (e) - as (c) and (d) but the raster image(s) not developed until the printing image is developed thus avoiding the intermediate filling step(s). In embodiments (c) - (e) the raster patterns control the inking level and support fine detail in the printing image.
Patent GB-1127156-A (GB)
Title: Removable film process magazine
Inventor: DIEFFENBACH HARRY NICKOLAS
IPC: G03B17/50
Filed: 1966-04-20
Abstract: 1,127,156. Photographic processing. MARK SYSTEMS Inc. April 20, 1966, No.17279/66. Heading G2A. Exposed film A passes from a camera D into a first magazine E which is detachably secured to a second magazine F. Magazine E contains two spools 23, 28 having respective slots 22, 29 therein, so that with the spools stationary and correctly orientated, the film passes straight through the slots. Along the film path between the spools is positioned a cutter 61. From magazine E the film passes via slotted members 33, 34 into magazine F where it is wound on to a spool B in contact with a further strip C which is supplied from a spool 40. Strip C is a mat of material impregnated with a developing solution, so that development of the film A takes place when film A and mat C are wound in contact round spool B, as in the process described in U.S. Specification 3,299,790. If it is desired to remove the film wound on spool B, it is served by cutter 61, and wound completely into magazine F, which is then detached from magazine E. Members 33, 34 can be rotated to act as light seals. At the same time, spool 23 is set in rotation by a motor, so that film continuing to be supplied from the camera is wound thereon. Alternatively, it may be desired to wind the exposed film from magazine F back into magazine E. In this case the film is severed as before, and both spools 23 and 28 set in rotation. Spool 23 takes up the film entering from the camera as before, and the film from spool B is wound back on to spool 28. At the same time the processed positive mat material C is re-wound on to spool 40 and can be removed by detaching magazine F.
Patent GB-292505-A (GB)
Title: Improvements in and relating to hydraulic couplings
IPC: F16D31/04
Filed: 1928-06-15
Abstract: 292,505. Junkers, H. June 20, 1927, [Convention date]. Hydraulic transmission of power.-A coupling comprising a gear wheel or other rotary pump has two oppositely-opening valves disposed between the suction and discharge chambers of the pump, the load on the valves determining the torque capable of being transmitted for either direction of rotation. Storage chambers may be provided. In the form shown in Fig. 1, for engine starting-gear, one valve 20 is adjustably loaded, and the other valve 16 is unloaded so that a free-wheel effect is obtained. In another form, both valves 31, 32, Fig. 4, are loaded, and unloaded valves 33, 34 are also provided for keeping the storage chamber 12<1> free of pressure.
Patent GB-254514-A (GB)
Title: Improvements in folding hoods for motor vehicles
IPC: B60J7/12
Filed: 1925-07-07
Abstract: 254,514. Calso, Ltd., Dixon, T. E., and Bradley, W. H. I. July 7, 1925. Hoods.-In folding hoods for motor vehicles, including motor boats, of the type in which the hood mechanism, which is carried solely off the upper part of a single standard, is extended and contracted during the rising and falling movements of the standard by positive mechanical means, the positive means employed to extend and contract the hood mechanism, which extends both fore and aft of the standard, operates directly on the cant-rail. As shown, the rear cant-rail D is pivoted to the standard B at d<1> and is extended to the rear and pivoted to a link E which is also pivoted to the body at e. The rear hoop A<1> is pivoted to the forward hoop A<2> at a<5> and also to the standard by a link a'. The hoop A' is connected to the forward cant-rail A<3> by a link a<3> and pivoted to the rear cant-rail D at a<4>.