baber/WOPTO huggingface dataset:
Patent GB-729776-A (GB)
Title: An improved weight and price computing scale
Inventor: JONES WILLIAM
IPC: G01G23/34
Filed: 1952-11-10
Abstract: 729,776. Weighing-apparatus. AVERY, Ltd., W. & T. Jan. 4, 1954 [Nov. 10, 1952], No. 28216/52. Class 143. Weighing apparatus comprises an opaque drum 4, Figs. 2, 3 marked at one end circumferentially with weight indicia, and marked along its length with indicia representing the product of price/lb. and weight; a fixed lamp and lens system projects the weight indicia onto one end of a ground glass or like viewing screen 6, and a movable lamp and lens system projects the total price onto the viewing screen, the price/lb. being indicated from a fixed chart. A line 9, Fig. 3, on the screen acts as index. The movable system comprises lamps 10, Fig. 2, lens system 11, a tunnel screen 12, and moves on rails 14, 15 parallel to the axis of rotation of the drum 4. The lamps 10 are fed by brushes from the rails 14, 15 which act as bus-bars. A lamp 20 movable with screen 12 illuminates a translucent scale 22, Fig. 3, showing price/lb.
Patent GB-696690-A (GB)
Title: Mining machine
IPC: E21C27/12
Filed: 1950-11-20
Abstract: 696,690. Mining machines. ANDERSON, A., and ANDERSON, BOYES & CO., Ltd. Dec. 10, 1951 [Nov. 20, 1950], No. 28273/50. Class 68(i) At one or both ends of a longwall mining machine there is provided at least one cutting head having horizontally disposed rotating cutting means which will make a circular kerf or remove a circular core from the buttock of the face and will cause the detached mineral to be swept clear of the machine to that side thereof clear of the face on to a conveyer 15. The cutting head may be a hub having arms 3 spaced from but disposed parallel to, the axis ot rotation of the hub with cutters 4 at the ends thereof remote from the hub and also disposed on the hub, or an auger-type cutter coaxial with an Archimedean screw, the pitch of which increases until at the end remote from the cutters it is infinite and is terminated by a disc normal to the axis of the screw. Twin cutters with interlaced arms may be provided, the upper cutter being vertically and. laterally adjustable with respect to the lower cutter. Horizontally disposed endless chain jib and disc cutters are provided below the cutting head or heads to level the floor, whilst drum and disc cutters are provided to clean the roof of the working.
Patent GB-255701-A (GB)
Title: Improved direction and stop indicator for motor and other vehicles
IPC: B60Q1/34
Filed: 1925-11-10
Abstract: 255,701. Poninghouse, W. B. D. Nov. 10, 1925. Road-traffic signals on vehicles; semaphore and pointer luminous signals.- A direction indicator for motor or other vehicles comprising a lamp body 1 shaped to provide a hollow pointer and revolvable about a lamp 2, upon a horizontal axis 13 set longitudinally of the a shield 7 being arranged behind which the indicator is adapted to be hidden while a rear light 5 is shown permanently, has both the rear and front faces 1<a> of the revolvable lamp body of glass. One or more glass portions 3 are provided in the sides and end of the body portion to enable light to be directed onto the number plate. Reflectors 6 are provided in the lamp body and the interior of the shield 7 may be provided with reflecting surfaces. The shield 7 is also provided with brushes or pads 24 to clean the glass 1<a>. The lamp body is revolved by oppositely acting chains 15 mounted on a pulley 14 fixed to the sleeve 13, the chains being connected by cables 16 to a similar set of chains on a disc mounted on the dashboard. This disc is provided with an electric contact ring so that the lamp is illuminated and an electric horn operand during movement of the disc. The cables 16 pass through a screwed sleeve fixed to the casing so that movement of the sleeve adjusts the tension of the cables.
Patent GB-270771-A (GB)
Title: Improvements in and relating to valves for steam or other fluids and liquids
IPC: F16K3/24
Filed: 1925-11-10
Abstract: 270,771. Mason, H. L., (Klinger, R.). Nov. 10, 1925. Piston valves. - A piston valve having a solid imperforate piston h is packed by a plurality of units r, t each of which is adjustable independently of the others. The packing units may be of simple form comprising a single elastic ring, as r, or of compound form comprising two or more such rings, as k, p with an interposed rigid annular member q which may be perforated, as shown.
Patent GB-1117526-A (GB)
Title: Ammoxidation process and catalyst
Inventor: KAUFMAN ARNOLD
IPC: C07D277/22
Filed: 1965-07-05
Abstract: 4-Cyanothiazole is made by contacting a vapour feed mixture of 4-methyl thiazole, oxygen and ammonia with an Al2O3-supported catalyst at a temperature of 380-460 DEG  C., the catalyst having a surface area less than 25m2/gm. and comprising 1-15% CoO, 1-10% MoO3, 1-10% V2O5, with the remainder being essentially the Al2O3 support material, the residence time for the vapour mixture and the catalyst being from 0.05 to 0.8 sec., the amount of oxygen provided in the vapour feed mixture being at least 20 moles per mole of 4-methyl thiazole, and the amount of ammonia provided in the vapour feed mixture being at least 1 mole per mole of 4-methyl thiazole. Comparative examples in which catalyst composition and feed vapour ratios are varied are described.
Patent GB-831018-A (GB)
Title: Metal structural floor particularly for bridges
IPC: E01D19/12
Filed: 1957-09-09
Abstract: 831,018. Metal floors. UNTERNEHMUNGEN DER EISEN-UND-STAHLINDUSTRIE A.G. FUR. Sept. 9, 1957 [Sept. 10, 1956], No. 28372/57. Class 20(4)   A metal floor, particularly for bridges, comprises a flat top plate 1 and a number of longitudinal stiffeners 2 welded to the underside of the plate 1, each stiffener and a portion of the top plate situated immediately above it constituting a body of hollow triangular section with its apex pointing downwards. For further stiffening the lower edges of the stiffeners may be connected by transverse members 5. Each stiffener may comprise a steel plate bent to V shape and strengthened by a bar or pre-stressed wire secured into the bottom of the V. Alternatively, the floor may be formed of elements of triangular section welded at their upper edges so that the upper sides collectively form the top plate.
Patent GB-1108607-A (GB)
Title: An enlarger head for use with multigrade paper
IPC: G03B27/72
Filed: 1965-07-05
Abstract: 1,108,607. Controlling contrast. C. L. THOMSON. Sept.29, 1966 [July 5, 1965],  No.28389/65. Heading G2A. Prints are produced on variable contrast printing paper by sequential insertion in the printing light path of a series of colour filters, each having an optical density such that the exposure time required to make a print of standard density, but varying contrast, is substantially constant, irrespective of which filter is being used. Each filter comprises a colour filter element and a neutral density filter, so that the total transmittance of the pair is held to a predetermined value. Thus the exposure time will be constant. As shown, the filter units 6, 7 are mounted in a rotatable carrier 5, so that any one can be rotated into position. Five units are so mounted, a sixth position being left empty for convenience. The light source is a lamp 1, the light being reflected down through a heat filter 4 and a tunnel 3, through the composite filter 6, 7 and a diffuser 8.
Patent GB-1486507-A (GB)
Title: Potentiometer
IPC: H01C1/01
Filed: 1975-07-04
Abstract: 1486507 Potentiometers SOC FRANCAISE DE L'ELECTRO-RESISTANCE 4 July 1975 [16 July 1974] 28404/75 Heading H1S A potentiometer comprises a resistive element on a substrate secured inside an insulating casing by resilient means which cause the substrate to bear against three support members being constituted by the inside ends of terminals which project through the casing. As shown a resilient metal blade 17 bears against a rib 21 of casing 1 and biases conductive areas 24 at the ends of resistive element 2 against terminal portions 4a, 6a. The third support member is constituted by a projection 16 integral with casing 1; in a modification it may be a portion of a centre-tap terminal (not shown). Blade 17 serves to conduct heat away from resistive element 2, and, in a second embodiment, may be replaced by a dished washer (29, Fig. 7, not shown) with radial slots at its periphery. It is envisaged that the invention may be also applied to rectilinear potentiometers.
Patent GB-333086-A (GB)
Title: Improvements in double acting pumps
IPC: F04B9/02
Filed: 1929-09-19
Abstract: 333,086. Evans & Sons (Wolverhampton), Ltd., J., and Kinnersley, H. L. Sept. 19, 1929. Double-acting piston pumps; valves, arrangement of. - A double-acting pump comprises a cylinder block A having three chambers a, b, c, the first a opening into the upper end of the pump barrel B, the second b into the lower end, and the third c into the inlet e. A valve chest M is attached to a face of block A and is divided into three chambers N, P, Q, the chambers N, P having inlet valves 6, 8 and opening respectively into chambers b, a through ports t, q, while the chambers Q contains the delivery valves 5, 7 and opens into the delivery pipe R. The valves may consist of rubber flaps carrying weights 9 - - 12. The piston C may be operated by rack and pinion d, G, actuated by a handle H which is coupled to the pinion shaft J by teeth h, so that it may be set at any angle.
Patent GB-214921-A (GB)
Title: Improvements in or relating to carburetters
IPC: F02M7/14
Filed: 1923-11-12
Abstract: 214,921. Pickard, W. Nov. 12, 1923. Spray carburettors. - A mushroom valve f, fitting in the choke-tube a<1>, is carried by a spindle f<1> having grooves f<2> extending to various heights so that nozzles e<1> are brought into action in succession when the spindle is lifted by an arm g<1> which may be moved by the accelerator pedal. Fuel is supplied through a chamber c<1> from a float, chamber d which is mounted on a rod a<3> so as to be adjustable in height. The spindle passes through a gland c<3>, packed with cork, and is bored so that steam admitted at h<1> is discharged at f<4>. The primary air supply is regulated by a ported sleeve a<4>. A slow-running nozzle, as described in Specification 208,772, is provided above the valve f. Specification 212.669 also is referred to.
Patent GB-1512318-A (GB)
Title: Hydrophilic polyacetals
IPC: D06M13/224
Filed: 1976-07-08
Abstract: 1512318 Treating with polyacetals RHONEPOULENC INDUSTRIES 8 July 1976 [10 July 1975] 28474/76 Heading D1P [Also in Division C3] Polyacetals having both hydrophilic and hydrophobic units and useful as anti-redeposition or antisoiling agents in cleaning or finishing textile. Articles are prepared by reacting a mixture (M) consisting of 20 to 60 wt. % of (A) a reaction product of OH No. 150 to 500 and Acid No. below 2 of a phthalic acid anhydride or diester and a saturated diol of M.W. up to 300; and 80 to 40 wt. % of (B) R-(OC x H 2x ) n OH (where R=H or up to C 20  hydrocarbon, x=2, 3 or 4, and n corresponds to M.W. 300 to 1000), or a mixture thereof with up to an equal weight of (R=C 1-4  alkyl or benzyl, X=halide or methylsulphate), with (R) an aldehyde, the number of mols of (R) being at least half the total OH groups in (M).
Patent GB-897819-A (GB)
Title: Alarm apparatus for industrial instrumentation systems
IPC: G08B23/00
Filed: 1960-08-17
Abstract: 897,819. Transistor circuits. FOXBORO CO. Aug. 17, 1960 [Sept. 15, 1959], No. 28564/60. Class 40(6). In a circuit for producing an alarm signal when an input voltage is above or below a predetermined value, the input voltage is applied in series with an opposing of voltage of the predetermined value and a rectifier poled so as to conduct when the signal is either above or below the reference voltage, the series circuit also including a source of periodic signals which renders the rectifier periodically non-conducting, so producing an A.C. output which is fed to an amplifier to operate the alarm. In Fig. 1 the input signal is applied across a resistor 24 in series with a reference voltage source 26 derived from a rectifier system 28. The series circuit also includes a rectifier 32 and a transformer 42 so that if the reference voltage is greater than the input voltage the rectifier 32 conducts current through the transformer primary winding. An A.C. signal is fed through a transformer 44 to a rectifier circuit 48 so as to produce voltage pulses across a resistor 38 with a polarity such as to render the rectifier 32 periodically non-conducting so that when the signal is such that the output current is at for example a level 54 (Fig. 3) the output current is periodically interrupted so that current only flows during the shaded periods. This current is fed to a transistor amplifier A to operate a relay 58 in an alarm circuit. By reversing the direction of the rectifier 32 it may be arranged that the alarm is operated only if the input signal exceeds the reference value. A second rectifier 62 is connected to a further winding on the transformer and to a further diode 34 matched in temperature characteristic to that of diode 32 so as to provide temperature compensation. Temperature compensation could alternatively be effected by a negative temperature coefficient network replacing the diode 34. Specification 887,004 is referred to.
Patent GB-1140784-A (GB)
Title: Process for the joining of materials which are not adequately high-frequency weldable
Inventor: FEDRICH HANS
IPC: B29C65/00
Filed: 1967-06-21
Abstract: 1,140,784. Seaming non-metallic sheet material. VEREINIGUNG VOLKSEIGENER BETRIEBE KONFEKTION. 21 June, 1967, No. 28584/67. Heading B5K. Sheets, e.g. of textile fabrics, of materials which are not high-frequency weldable are joined by sintering a high-frequency weldable thermoplastic material in powder form by dielectric heating on to the joining region of one sheet, applying the second sheet on to the sintered material and dielectrically heating and pressing together the assembled sheets to weld them together. The sintering and welding operations may be carried out in the same high frequency welding press or in separate presses. Additional heat may be supplied during welding. The powdered thermoplastic material may be a polyamide or a mixture of polyamides to which a compound having a high dielectric loss factor, e.g. titanium dioxide, has been added to improve the high frequency weldability. A plasticizer, e.g. paratoluene or suphonamide, may also be added to the thermoplastic material. Alternatively, the powdered thermoplastic material may be a polyolefine or a mixture of polymerizates thereof to which a compound with a high dielectric loss factor has been added to render it high-frequency weldable.
Patent GB-943382-A (GB)
Title: Improvements in travelling cleaning apparatus
IPC: D01H11/00
Filed: 1962-07-25
Abstract: 943,382. Air filters. PARKS-CRAMER (GREAT BRITAIN) Ltd. July 25, 1962 [Aug. 1, 1961 ; July 2, 1962 (2)], No. 28642/62. Heading BIT. [Also in Divisions D1 and F1] Cleaning of a rotating filter element 141, Fig. 4, upstream of the suction inlet 103 of a travelling blower B, Fig. 1, serving to blow lint deposited on the frames of a row of spinning machines is effected by a stationary suction nozzle 145 adjacent the upstream face of the filter element 141. Cleaning is assisted by a brush 155, Fig. 5 (not shown), extending across the elongated mouth of the nozzle which in turn extends across the radial width of the filter element which is of annular form and is constructed of perforated stainless steel. The element 141 extends between and is secured to an upper fan housing 70 and a canopy 130 thereof and the assembly carries a pulley 95 driven through a belt 110, a pulley 111 on a vertical shaft connected by bevel gearing to a shaft 125 connected to one of the carriage rollers 52 driven by the blower motor 50. The suction nozzle 145 is connected by a flexible conduit 150 to the suction casing 30 of a travelling suction cleaner A serving to clean the floor F and connected to the blower B by rigid links 54, 55. The cleaner A discharges lint-laden air into a filter chamber 23 and from thence clean air passes to atmosphere. In a modification the rotating filter screen 291, Fig, 10, is of annular frustro conical form and the suction cleaning nozzle 325 which is flanked by flexible wiper blades, only one 335 of which is shown, is opposed by a blowing nozzle 345 on the downstream side of the screen 291 and supplied with air from the fan 262 through an L-shaped duct 348. In a further modification the rotating filter 480, Fig. 18, forms the base of a fan housing 410 which is driven by friction rollers 492, 493 connected by gearing to a motor 430 which drives a carriage 413 along a track 412. The filter cleaning suction nozzle 511 is connected by a rigid conduit 512 to the inlet 513 of a fan 470 driven by a motor 472 which also drives fan 475 and fan 470 discharges into a dust bag 460, Fig. 14 (not shown). Specification 852,765 is referred to.
Patent GB-767938-A (GB)
Title: Improvements in machines for teasing, aerating and stacking compost
IPC: C05F17/02
Filed: 1952-11-13
Abstract: 767,938. Aerating compost. ROBERTSON, W. E. Dec. 31, 1953 [Nov. 13, 1952], No. 28679/52. Class 111. [Also in Group XXX] A machine for teasing, aerating and stacking compost comprises a rotatable drum 4, mounted on a frame 1 and having radially projecting forks 5 which pick up the material from a feeding supply and project it tangentially away from the upper surface of the drum and beyond the frame, and a hood 12 fitted over the drum to direct material projected from the drum. The inclination of the hood is adjustable by varying the position of struts 13 carried by the frame 1. Material to be treated is supplied by means of a hopper 6 which is hinged at its lower end to the frame 1 and is held in position by means of adjustable struts 10 so that its inclination can be varied. A tray 7 is fitted below the drum which is preferably made of wire mesh. The material stacked is moistened by means of sprays formed by a length of perforated piping 14. The forks may pass between stationary combs or bars. The drum may be used for sieving the compost.
Patent GB-869017-A (GB)
Title: Baling machines
IPC: A01F15/14
Filed: 1957-09-11
Abstract: 869,017. Baling-machines. THIEBAUD, J. E. Sept. 11, 1957 [Nov. 26, 1956], No. 28686/57. Class 94(1). A " pick-up " baler comprises pivoted screens 5 which are swung upwardly into the baling chamber simultaneously with the movement of the tying needles I to protect the latter during their movement across the chamber to carry twine to knotters H. The straw or hay is fed into the feed channel D<SP>1</SP> of the machine by a front " pick-up " A and urged by a rotary member E into the baling chamber D where it is compressed against a preceding bale by a swinging ram G. The screens 5 are secured to a shaft 2 carrying a crank arm 3 which is coupled by a link 4 to a crank arm 1 carried by the needle shaft K. The screens penetrate and hold back the incoming straw so that the needles can rise without encountering undue resistance.
Patent GB-261421-A (GB)
Title: Improvements in latch mechanism
IPC: E05B65/22
Filed: 1926-11-15
Abstract: 261,421. Budd Manufacturing Co., E. G., (Assignees of Tarbox, J. P.). Nov. 14, 1925, [Convention date]. Latches, sliding.-In latches for vehicle doors having a window 16 extending substantially the full width of the door, the inner and outer handles are connected by a member 17 extending around the side of the window to form a runchannel for the window, and moving vertically. The sliding bolt 20, Fig. 3, is gapped to receive a follower 27 engaged by the inner handle 23. The back-plate 22 has a rib 34 engaging a spring 30 in a recess in the bolt. The follower 27 is on a crank 26 having a pin 29 engaging a slot in an arm 46, Fig. 4, on the member 17 which carries on the other side of the window a pin 45 engaging an arm 39 on the shaft 37 of the outside handle. The member 17 is guided by parts 43, 44 secured to the jamb rail 10 having a rebate 11 which also guides the member 17.
Patent GB-601282-A (GB)
Title: Improvements in or relating to railway rail anchors
IPC: E01B13/02
Filed: 1945-10-30
Abstract: 601,282. Making rail anchors. P. & M. CO. (ENGLAND), Ltd. Oct. 30, 1945, No. 28807. Convention date, Nov. 4, 1944. [ Classes 83 (ii) and 83 (iv)] [Also in Group XXX] Bending-dies.-A rail anchor made by bending a T-shaped bar to provide a jaw 14 has a joggle 17 formed between an anvil 37 and a die 38, the jaw being formed by a wing arm 39. The die and arm are bifurcated to engage only the bar flanges and allow the web to stretch.
Patent GB-677350-A (GB)
Title: Improved method of preparing halomethylated polymers of alkenyl aromatic compounds
IPC: B01D15/04
Filed: 1949-11-10
Abstract: Polymers and copolymers of alkenyl aromatic compounds containing in chemically combined form at least 50 per cent of at least one monoalkenyl aromatic compound that contains a vinyl or isopropenyl radical are catalytically halomethylated by treatment at a temperature of - 10 DEG  to 125 DEG  C. with a halomethylating agent such as methylene chloride, bromide or bromo-chloride, chlormethyl methyl ether, bromomethyl methyl ether, alpha, alpha1-dichlorodimethyl ether, alpha, alpha1-dibromodimethyl ether, mixtures of hydrogen chloride and formaldehyde or paraformaldehyde, and mixtures of hydrogen iodide, paraformaldehyde, and an acid, the reaction being carried out in the presence of a solvent or swelling agent for the polymer such as the halomethylating agent, trioxane, carbon bisulphide and tetrachloroethylene; the halomethylating agent is employed in amount at least as great as that required to introduce into the polymer molecule at least one halomethyl group per ten aromatic nuclei.  Polymers specified are those derived from one or more of styrene, alpha methyl styrene, nuclear chlorostyrenes, vinyl toluenes, vinyl xylene, vinyl naphthalenes and nuclear ethyl vinyl benzenes, and copolymers of these with butadiene, isoprene, 2,3-dimethyl butadiene, divinyl benzene and diallyl maleate. Suitable catalysts for the halomethylation reaction are zinc, iron, tin, and aluminium metals, zinc oxide, chloride and bromide, stannic chloride, aluminium chloride and bromide, ferric chloride and antimony pentachloride.  The halomethylation reaction may be carried out in the presence of porous bodies such as earth or sandy formations in order to seal them, or the halomethylated resins may be treated with ammonia and amines such as trimethylamine which replace halogen atoms to provide anion exchange resins.ALSO:The dimers, trimers, and tetramers of styrene, and the dimers and trimers of alpha methyl styrene and nuclear chlorostyrenes are catalytically halomethylated by treatment at a temperature of -10 DEG  to 125 DEG  C. with a halomethylating agent such as methylene chloride, bromide, and chloro-bromide, chloromethyl methyl ether, bromomethyl methyl ether, alpha, alpha1 dichlorodimethyl ether, alpha, alpha1 dibromodimethyl ether, mixtures of hydrogen chloride and formaldehyde, and mixtures of hydrogen iodide, paraformaldehyde, and an acid, the reaction being carried out in the present of a solvent such as carbon bisulphide or tetrachloroethylene; the halomethylating agent is employed in amount at least as great as that required to introduce into the starting material at least one halomethyl group per ten aromatic nuclei. Suitable catalysts for the halomethylation reaction are zinc, iron, tin, and aluminium metals, zinc oxide, chloride, and bromide, stannic chloride, antimony pentachloride, aluminium chloride and bromide and ferric chloride.