baber/WOPTO huggingface dataset:
Patent GB-752698-A (GB)
Title: A new or improved method of producing press tools for cutting blanks from sheet material, and press tools made according to such method
IPC: B21D37/20
Filed: 1954-05-18
Abstract: 752,698. Making tools. SARNO, A. J., and SMILOWITZ, S. May 18, 1954 [May 20, 1953], No. 14525/54. Classes 83 (2) and 83 (4). [Also in Group VIII] A die for co-operating with a press-knife which consists of a strip or strips of metal bent to the shape of the required blank, is made by coating a sheet of metal with an impressionable substance, using the pressknife to impress an outline in the coating and trimming the metal closely to the outline. The pressknife is made by sawing the required out. line in a block 2 of wood with a jig-saw having a blade width equal to the width of the strip 11 and then bending and inserting the strip in the slot. The slot may pass completely or partially through the block 2 of wood. The metal sheet 29 is coated with layout blue and after marking with the knife is cut to the outline, the out being bevelled to undercut the outline. The knife 2, 11 and die 28 are inserted in the press and the die is finally trimmed to size by the knife. Layers or pads 30, 31 of rubber or cork are secured around the die and in and around the press knife flush with the cutting edge to strip the work from the tools after cutting. The press knife can be used for cutting blanks from metal, plastic, veneer, plywood, cardboard and fibre board.
Patent GB-678871-A (GB)
Title: Improvements relating to gravity catches for drawers
Inventor: HICKIN NORMAN
IPC: A47B88/16
Filed: 1950-06-12
Abstract: 678,871. Drawers. EVERTAUT, Ltd. March 30, 1951. [June 12, 1950] No. 14551/50. Class 52 (i). The side 3 of a drawer 1 carries a pivoted catch 10 with a nose 13 which can engage an abutment on the housing, a rearwardwardly extending arm 15 serving as a counterweight to hold the catch in operative position and a forwardly extending finger piece 16 by which the catch may be freed to permit withdrawal of the drawer. The runners 4 provide side clearance for the catch and the nose piece 13 is preferably movable in a slot in the top beading 7 of the drawer which limits its rearward movement.
Patent GB-932998-A (GB)
Title: Improvements in rotating heads for electrostatic atomising and spraying apparatus
IPC: B05B5/04
Filed: 1960-04-26
Abstract: 932,998. Spray - producers. MACHINES ELECTROSTATIQUES S.A. DE. April 26, 1960 [April 27, 1959], No. 14595/60. Class 69 (3). A rotatable head for atomizing substances such as paint both electrostatically and by centrifugal force comprises a cylindrical body 1 with a detachable collar 3 having a sharp or tapering spraying edge 5 the collar being secured by an interfitting complementary rib 2 and groove 6. The collar is made of an electrically high resistivity material, e.g. an epoxy resin having a lamp black or " carbon black " filling, or may be of a slightly conductive rubber, the material preferably having a resistivity of the order of 10<SP>6</SP> ohms/cm. The body may be metal or of an electrically high resistivity material, e.g. a plastic material. As an alternative, the rib may be on the collar and the groove in the body. There may be more than one rib and groove.
Patent GB-1521844-A (GB)
Title: Excavating mechanisms
IPC: E21D9/10
Filed: 1976-04-09
Abstract: 1521844 Excavating mechanism ROBBINS CORP 9 April 1976 [11 April 1975] 14614/76 Heading E1F An excavating mechanism for use in a tunnelling machine comprises a cutting tool 52 and a support structure for the tool. The structure has a tool-mounting head 14 and three double-acting, hydraulically actuated piston cylinder units forming three variable length support and drive legs. Each unit is pivotally connected at its forward end by means 34, 36, 38 to the head 14. The units diverge rearwardly from the head and at their rear ends are mounted for universal pivotal movement on a tunnelling machine. With this mechanism, when the lengths of the units are held constant, the tool is held rigid by the units, and, by selective operation of the units, the cutting tool can be advanced towards and traversed across the face in any direction.
Patent GB-1517442-A (GB)
Title: Microcapsules for pressure-sensitive recording material
IPC: B01J13/02
Filed: 1976-04-09
Abstract: 1517442 Microcapsules FUJI PHOTO FILM CO Ltd 9 April 1976 [9 April 1975] 14676/76 Heading B8C [Also in Division D2] Polynuclear microcapsules for use in preparing pressure-sensitive recording material contain droplets of an oily substance the average particle size (d) of the droplets being from 0À5 to 10 Á and the average particle size (D) of the microcapsules being from 3À0 to 50 Á and meeting the requirement D > 1À3d. The microcapsules are suitably prepared by complex coacervation and the oily substance preferably contains a colour-former dissolved therein. The microcapsules may be used in the production of pressure-sensitive recording material wherein said material comprises a sheet support having on one face thereof a layer of said microcapsules. The recording material may be single-, double- or multiple-ply copying sheet.
Patent GB-311109-A (GB)
Title: Improvements relating to pump-operated fluid-ejecting devices
IPC: B67D7/02
Filed: 1928-05-18
Abstract: 311,109. Westwood, A. E. May 18, 1928. Addition to 273,199. Lever-actuated pumps; reciprocating-cylinder pumps; mountings. - The internal pumping mechanism of the oil can described in the parent Specification is applied to liquid containers generally. The mechanism comprises a valved sleeve 12 sliding on a valved tubular member 6 fixed to a cap 5 screwed on the filling hole 4; the cap 5 on the other side carries a swivelling delivery spout 7 to which a flexible hose may be attached. The sleeve 12 is actuated by a pivoted lever 22 and a rod 17 on its upward delivering stroke and is returned by a spring 16 ; the rod 17 has a coned head 20 fitting the hole in the cap 5 through which it passes and is forked at the other end 18 for connection with pins on the sleeve 12. The lever bracket may be integral with the cap 5, or the whole drum cover 3 may be detachable for use with other drums. Specification 229,148 is referred to. Reference has been directed by the Comptroller to Specification 273,199.
Patent GB-167890-A (GB)
Title: Improvements in and relating to electric meters
IPC: G01R11/60
Filed: 1920-05-31
Abstract: 167,890. British Thomson - Houston Co., Ltd., (General Electric Co.). May 31, 1920. Special quantities, registering.-In a maximumdemand indicator, the driving-means for the indicator pointer is reset by means of a mutilated gear-wheel which may rotate at a constant speed, making one revolution in the interval predetermined for the indication of maximum demand. The driver 29 is driven by a spring 33 and controlled by a pawl 22 engaging a ratchet-wheel 19 driven by the meter armature 10 so that when the mutilated gear 37 becomes operative the constant speed motor 38 winds the spring 33, the pawl 22 slipping on the ratchet-wheel 19.
Patent GB-1549241-A (GB)
Title: Twin belt continuous casting apparatus fir casting metal
IPC: B22D11/06
Filed: 1976-04-12
Abstract: In order to achieve low-friction support of the mould belts (20) forming the moulding gap of the apparatus, the belts (20) are hydraulically supported by cooling water. The supporting elements (102) are provided with cooling-water nozzles (114) which lie within supporting areas (106). The cooling water emerging from the nozzle forms a film of water which flows over the annular supporting area (106). The interspaces between adjacent supporting elements (102) serve as a water outlet. In order to compensate for local irregularities in the strand thickness, the supporting elements (102) can be pressed individually against a stop (126) and moved outwards relative to the gap by means of a hydraulic force and/or a spring force (120) when the force exerted by the belt via the cooling-water film exceeds a certain value. <IMAGE>
Patent GB-580792-A (GB)
Title: Improvements relating to liquid elevating apparatus
IPC: F04F1/06
Filed: 1944-08-04
Abstract: 580,792. Liquid raising apparatus. GRESHAM & CRAVEN, Ltd., and MARSH, G. C. Aug. 4, 1944, No. 14944. [Class 102 (ii)] A liquid elevating apparatus of the compressed air type and in which the air is controlled by a float mechanism comprises a float chamber 1 exhausted by an ejector. 10 acting through an isolating valve 11, 12. A duplex valve 8 is operated by a float 7 to allow access of the compressed air to the ejector and isolating valve or to the liquid in the chamber 1, according to whether liquid is being fed into or discharged from the chamber past ball valves 4, 6 respectively.
Patent GB-856365-A (GB)
Title: A process for improving the mechanical properties of polyvinyl chloride and productsobtained by the process
IPC: C08L27/06
Filed: 1958-05-09
Abstract: The mechanical properties of PVC are improved by the homogeneous incorporation therein at an elevated temperature of at least one polyamide resin derived from a saturated o -amino acid, e.g. 11-amino-undecanoic acid.  Preferred polyamides have a softening temperature not exceeding 185 DEG C.  The resin may be mixed with the PVC as a powdered resin or moulding powder on a heated roller mill. For reasons of compatability and economy only a limited quantity of polyamide will normally be added to the PVC e.g. not more than 20% weight in the case of the polyamide derived from 11-amino undecanoic acid.  In an example a composition comprises by weight 90 parts PVC; 10 parts of a polyamide derived from 11-amino-undecanoic acid; 3 parts lead stearate, and 0,5 parts calcium stearate.
Patent GB-1405191-A (GB)
Title: Silica surfaced articles
IPC: C08J7/052
Filed: 1973-03-29
Abstract: 1405191 Nodular SiO 2  coatings E I DU PONT DE NEMOURS & CO 29 March 1973 [29 March 1972] 15113/73 Heading B2E A flexible polymeric article has a multiplicity of segregated nodules of SiO 2  bonded to at least one polar surface thereof, the area surrounding each nodule being substantially free of siliceous material. The article may be a film fabric or fibre and may be polar e.g. polyethylene terephthalate, polyimides or nylon or non-polar with the or each surface treated (e.g. by electrical discharge, flame) to make it polar. Examples of non-polar polymers are polyethylene and polypropylene. Preferably the nodules are formed by first allowing water vapour to condense in microdroplets on the article, then contacting the article with a dry air-carried vapour of a hydrolisable tetrafunctional silicon precursor such as SiCl 4 , tetramethyloothosilicate, tetramethyloothosilicate or mixtures thereof. Alternatively, the precursor may be condensed on the article first, with subsequent treatment with water vapour. It is stated that the precursor may be alternatively applied as a liquid or from solution. The SiO 2  nodules may be applied before or after biaxially stretching an article in the form of a film or fabric. The article in the form of a film may be used as a printable base, a base for magnetic tape or photographic material, or as a dielectric substrate for metal coatings.
Patent GB-700939-A (GB)
Title: Improvements in or relating to buildings
IPC: E04B1/344
Filed: 1951-06-26
Abstract: 700,939. Portable buildings. LUDOWICI, J. W. June 26, 1951, No. 15132/51. Classes 20 (1) and 20 (2) A portable building or shuttering comprises longitudinal walls 2, 4 and transverse walls 1, 6, 5, 3 which are so hinged at 8 ... 15 that the building can be folded, e.g. for transport, to form a structure (Fig. 2) which is longer and narrower than the building and yet maintains hollow spaces within it. The walls are formed of panels 7 and only the transverse walls 1, 6, 5, 3 are hinged at 8 . . . 15. The hinges lie on two parallel lines L1, L2 inclined to the side walls of the building, and this permits hollow spaces to remain in the folded structure, as shown in Fig. 2. When the invention is applied to a portable shuttering, a similar arrangement is employed, see Figs. 3, 4 (not shown). A carriage equipped with mechanical or hydraulic lifting means may be provided for the building and shuttering, and the shuttering may have a temporary ceiling support.
Patent GB-861701-A (GB)
Title: Improvements in spray devices
IPC: B65D47/14
Filed: 1959-05-04
Abstract: 861,701. Spray-producers. WERNER & MERTZ A.G. May 4, 1959 [May 16, 1958; April 15, 1959], No. 15242/59. Class 69 (3). A spray attachment for a liquid container made of compressible resilient material coinprises a nozzle opening 2, Fig. 1, for atomized liquid and an air intake channel, of larger crosssection than the opening 2, which is controlled by a valve 6. On squeezing the container, the valve 6 is forced upwards until a disc 7 engages an annular projection 5 and closes the channel, liquid rises through a tube 4 which extends to the bottom of the container and is atomized by air flowing through a channel 13. On releasing the container, the valve falls until a ring 8 engages the projection 5 and air enters the container. As shown, the attachment has a screwthread for securing it to a bottle-neck and also has a snap closure member 12. The air intake channel may be recessed so that the valve is mounted below the channels top portion and the cap may have a stopper-like projection which, when the cap is closed, forms a tight seal in the top of the channel. The valve comprises the ring 8, Fig. 2, webs 10, a pin 9 and the disc 7 or, instead of the ring 8, the valve may have curved projections 14, Fig. 4. The attachment and the valve may be of synthetic plastic.
Patent GB-730834-A (GB)
Title: Improvements in gas turbine installations
IPC: F02C3/36
Filed: 1953-06-01
Abstract: 730,834. Gas turbine plant. MASCHINENFABRIK OERLIKON, June 1, 1953 [June 6, 1952], No. 15248/53. Class 110 (3). The plant comprises a series arrangement of a compressor 6, an axial flow turbine 1 including a plurality of overhung wheels driving the compressor on one side, a similar trubine 2 driving the compressor on its other side, and an effective output turbine 3. Turbines 2 and 3 are similar and have a common housing. A combustion chamber 12, a reheating chamber 13 and a heat exchanger 11 are provided.
Patent GB-702130-A (GB)
Title: Improvements in or relating to chair
IPC: A47C3/18
Filed: 1953-06-01
Abstract: 702,130. Seats. HAMILTON, B. F. June 1, 1953, No. 15266/53. Class 52(2) A swivel vertically adjustable chair comprises a seat which is adapted to swivel on and is carried by a vertical rod 19 slidable in a bearing sleeve 18 secured by a twopart case 10 to which the legs 11 are riveted. A locking arrangement for gripping the vertical rod after adjustment comprises a plate 40 having an aperture embracing the rod 19 and formed with a returned end 41 by which the plate 40 can rock on the upper part of the case 10. A spring-controlled bolt 43, Fig. 5, tends to cant the plate 40 so _that the edges of the hole therein grips the rod 19 and prevent raising and lowering thereof. The rod 19 is released by raising the plate by the fingerpiece 46 until the hole is in the horizontal plane. The seat 24 is provided with a crossmember 25 to which are secured dished members 30 carrying a sleeve bearing 33. The load on the seat is transmitted to the rod 19 through a collar 34. The back-rest frame comprises vertical tubular members 50 and horizontal members 52 which are slidably carried by the transverse member 25 so that the back rest may be adjusted to and from the seat.
Patent GB-529150-A (GB)
Title: Improvements in cop, bobbin and spool winding apparatus
IPC: B65H54/50
Filed: 1939-05-23
Abstract: 529,150. Winding threads &c. REINERS, W., (trading as SCHLAFHORST & CO., W.). May 23, 1939, No. 15325. Convention date, June 7, 1938. [Class 120 (ii)] In apparatus for winding cops &c. in which the thread or filament is traversed in one direction by a helically grooved drum and in the reverse direction is effected by a guide offset to one side of the drum, the reverse traverse is assisted or controlled by a series of disconnected notches or recesses arranged helically in the drum and not intersecting the groove. As shown the filament F passes from the offset guide 7 to the traversing drum 4, the groove 5 traversing the filament in one direction and the reverse traverse, caused by the offsetting of the guide 7, being assisted by the notches 6, the guide 8 limits the reverse traverse. The package 2 may be driven by the drum 4 or the spindle 1 may be driven.
Patent GB-707839-A (GB)
Title: Improvements in telescopic legs for stands
IPC: F16B7/14
Filed: 1952-06-18
Abstract: 707,839. Stands. SEIFERT, K. June 18, 1952 [June 23, 1951], No. 15354/52, Class 52(3) A telescopic leg for a stand having a clamp coupling operated by ground pressure comprises an upper tube 1 and a lower tube 2 with a head 3 at its upper end closed by a plug 4. Spring rings 6 in the head 3 prevent unintentional displacement of the tubes. Balls 7 in holes in the head 3 are pressed radially outwardly against the walls of the outer tube by a cone 8 to secure the two tubes in adjusted position. The cone 8 is mounted on a pressure rod 9 which transmits ground pressure directly to the cone to close the clamp. A foot 10 directly connected to the end of the pressure rod has a portion 10<SP>1</SP> slidable in the lower end of the tube 2. A spring 11 acting on the other end of the pressure rod displaces the rod and control cone when ground pressure is absent, thus holding the clamp coupling open.
Patent GB-923706-A (GB)
Title: Improvements in or relating to electrical-discharge-machining
Inventor: WEBB ROBERT SOUTH
IPC: B23H1/02
Filed: 1961-04-27
Abstract: 923,706. Pulse generator circuits. ELOX CORPORATION OF MICHIGAN. April 27, 1961, No. 15362/61. Class 40 (6). [Also in Group XXII] In an electro-erosion machine in which an electronic switch in the circuit between a power supply and the spark gap is actuated by a pulser, a cut-off device is operative if the gap voltage is too low or the gap current too high to interrupt the operation of the pulser or switch. The cut-off device in effect tests each pulse across the spark gap and in under 10% of the duration of the pulse suppresses it if it is abnormal, so protecting the electronic switch and the workpiece. The pulser consists of a multivibrator 36, 38, Fig. 1, feeding through amplifiers 66, 76, the pulses being clamped to a negative bias voltage by diodes 72, 80. The electronic switch in the form of a bank of tubes 22 is periodically rendered conductive by pulses from the cathode circuit of the amplifier 76 to pass pulses from the power supply 10 through a transformer 16 to the gap between the workpiece 28 and the electrode 24. Reverse current flow in the gap is prevented by rectifier diodes 26, 34 and a damping circuit 100, 102, 104 is connected across the transformer primary 14. The output of amplifier 76 is fed in opposition to the output from a transformer 122 connected across the spark gap to a cut-off tube 106. Should, say due to a shortcircuit across the gap, the output of transformer 122 be below normal, cut-off tube 106 conducts and inhibits the multivibrator 36, 38 so suppressing the gap pulse. Immediately the amplifier 76 and the cut-off tube 106 cease to conduct so that only the abnormal pulse is ,suppressed and the next pulse if normal is generated in full. In a modification, Fig. 8, the switching tubes 264 are connected in series with the electrode 270, workpiece 272 and power supply 202. The multivibrator 204, 206 has a resistance adjustable to vary the on-off ratio and feeds through amplifiers 232, 254 to the switch 264. The cutoff tube 290 is connected to the anode circuit of amplifier 232 which conducts with the switch 264. The gap voltage fed to the grid of cut-off tube 290 normally prevents this tube conducting. When the gap voltage is low cut-off tube 290 conducts and back biases tube 204 to trigger the multivibrator. In another modification the circuit of Fig. 8 is transistorized. The output of a pulser 336, Fig. 9, such as a multivibrator is passed through transistors 334, 320, 314 to a transistor switch 306 in series with the spark gap. The cut-off transistor 338 compares the potential at lead 348 derived from the gap voltage with the potential on lead 340 derived from the voltage across the gap and a resistance 308. If the gap voltage is low transistor 338 conducts and causes transistor 334 to conduct so interrupting current through the gap. Instead of checking the gap voltage the transistor 338 may test the current flow as in Fig. 10 (not shown) by checking the potential across a resistor in series with the spark gap.
Patent GB-477609-A (GB)
Title: Improvements in and relating to coaxial-cylinder four-stroke-cycle internal combustion engines
IPC: F01B7/12
Filed: 1936-06-02
Abstract: 477,609. Four-stroke engines. OPPERMAN, S. E. June 2, 1936, No. 13385. [Class 7 (ii)] The engine consists of two or more pairs of coaxially disposed cylinders with co-operating coupled pistons arranged in units, each unit comprising two pairs of cylinders disposed horizontally in coaxial alignment with each other, a common crank-shaft disposed intermediate and below or above the compression ends of adjacent cylinders, co-operating valve mechanism, a connecting rod and crank chamber arranged parallel to the aligned axes of the cylinders and lever mechanism for transmitting the power developed by the pistons to the connecting rod and crank-shaft. Within a pair of coaxial cylinders 1, 2 reciprocates a double piston 19, 20 formed with a central cylindrical guide 25 for a piston-like member 34 slidable at rightangles to the axis of the cylinders. A twoarmed lever 6, pivoted at its ends to the member 34 and a connecting rod 31 respectively, transmits power from the piston 19, 20 to a crank-shaft 29 disposed intermediately but off-set from the cylinders 1, 2 and the corresponding coaxial pair which completes the unit. The crank-shaft operates the valve mechanism for both the inner and outer cylinders 2, 1 of each pair and drives a propeller shaft through epicyclic gears the pinions of which may be held stationary or driven.
Patent GB-235596-A (GB)
Title: Improvements in and relating to electrodes for electric arc furnaces
IPC: H05B7/085
Filed: 1925-06-13
Abstract: 235,596. International General Electric Co., Inc., (Assignees of L³dke, B.). June 14, 1924, [Convention date]. Furnace details.-A furnace electrode consists of a metal tube C surrounding a carbon core A, the tube being of sufficient thickness to carry practically the entire current. The tube is shrunk on to the core and successive sections are jointed together by means of a screwed joint D and a nipple B. The screwed joint D may be replaced by a welded joint or by a shrunk-on ring. The metal of the tube depends on the process for which the electrode is to be used. For a: steel furnace an iron tube 4-10 mm. thick is shrunk on a carbon core 250 mm. in diameter.
Patent GB-300099-A (GB)
Title: Improvements in or relating to devices for dumping the bodies of trucks and the like
IPC: B60P1/20
Filed: 1928-05-25
Abstract: 300,099. Barrett, E. R. May 25, 1928. Tipping wagons.-A device for tipping trucks &c. comprises a pair of racks mounted on the frame, gear segments adapted to traverse the racks and having arms extending in a downward direction and linked to the body. The device is preferably constructed as a unit. As shown the device comprises a hydraulic cylinder 14, piston rod 17, a pair of toothed segments 20 the pitch radii of the teeth of which varies progressively, a pair of curved racks 9 carried by transverse bars 7, 8 and having integral therewith vertical arms 11 to which stays 12 are secured, the other ends of which are secured to the cylinder 14 and which are also connected by brackets 13 to the bars 8. The segments 20 have arms 26 which are vertical when the body 2 is in the horizontal position and which are connected by links 27 to the body. The unit is secured to the chassis members 1 by means of the transverse bars 7,