baber/WOPTO huggingface dataset:
Patent GB-693985-A (GB)
Title: Apparatus for infusing coffee
IPC: A47J31/54
Filed: 1950-11-15
Abstract: 693,985. Apparatus for making coffee. SCHAERER AKT.-GES., M. Nov. 15, 1950 [Nov. 15, 1949] , No. 27950/50. Class 129. In coffee percolating apparatus at least one vessel 3 for collecting the infusion and provided with a built-in filter 4 is carried in a deep-sided elongated casing 2 which forms the body of the apparatus. Legs 1 carrying the casing 2 are supported on a board above a boiler 21, three vessels 3 provided with liquid level gauges 15 being supported within the casing 2. A water sprayer 7 supported in the cover 5 of the vessel 3 is connected to a valve-controlled pipe 12, the valve being incorporated in one member 9 of the cover hinge 8, 9, and being actuated by a lever 13 from which a float 6 is suspended. A locking and releasing device for the valve is provided by the wedge-shaped inner end 10A of a handle rod 10 which is slidable horizontally in the cover 5 and engages a bow 13A of the lever 13. In use, ground coffee having been put in the filter 4, the rod 10 is pulled outwards, consequent descent of the float 6 causing the lever 13 to raise a valve body 28, so that water from the boiler 21 rising through pipes 22, 24 can pass via the valve and pipe 12 to the sprayer 7 to fall on to the float 6 before reaching the coffee. Hot water also passes from the pipe 22 to a heating coil 20 beneath each vessel 3 and then back via a pipe 23 to the boiler, one of the coils being provided with an outlet 30. The infusion collects in the vessel 3 until the float 6 operates to close the valve. As the infusion is drawn off via a tap 17 below the cross member 2 of the yoke, descent of the float 6 automatically re-opens the valve unless the rod 10 is pushed in to hold the float up. The infusion may be stirred by rotating the handle 19 of a mixing-device 18, When the cover 5, together with the float 6 and sprayer 7, is raised for cleaning purposes, the part 9 of the hinge 8, 9 swings relative to the part 8, the valve being held closed by the engagement of the rod end 10A with the lever 13.
Patent GB-1349953-A (GB)
Title: Automotive steering linkages
IPC: B62D7/16
Filed: 1971-06-15
Abstract: 1349953 Steering linkages TRW Inc 15 June 1971 [17 Aug 1970] 27980/71 Heading B7H A parallelogram linkage 10 includes a centre link 11 formed of stamped sheet metal bent into a U-shaped configuration with a flange 30 and legs 31 and 32. The linkage 10 is pivoted to pitman arms 13 and 15 and the rods 24 and 25 attached to steerable wheels (not shown) by slidably adjustable ball joints 20 and 21. The ball joint 20, Fig. 3, comprises a cup-shaped socket 40 having a bolt 41. A ball-ended stud 42 fits in a bearing block 43 and is secured to tie rod 24 by a nut 49. The bolt 41 is adjustable along a stamped opening 50 in the flange, for adjusting wheel alignment, and is locked in adjusted position by a washer 51 and retaining nut 52. In a modification, the opening 50 has teeth 54 (Fig. 6, not shown) engaging splines (55) on bolt 41.
Patent GB-628801-A (GB)
Title: Improvements in or relating to circuits for generating an adjustable stable frequency
IPC: H03B21/01
Filed: 1947-10-20
Abstract: 628,801. Valve generating circuits. NAAM. LOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 20, 1947, No. 28003. Convention date, Feb. 3, 1941. [Class 40 (vi)] High - frequency oscillations of adjustable stable frequency are generated by mixing the oscillations generated by a crystal - controlled source 1 with oscillations produced by a tunable low-frequency source 4, the mixing being effected in a balanced modulator designed to suppress the crystal frequency. Of the two sidefrequencies produced one is selected for use by a filter 12. As shown, the balanced modulator comprises two triode valves 7, 8 with their grids excited in parallel by the crystal source 1 and in push-pull by the low-frequency source 4, the output being taken in push-pull from the plate circuits.
Patent GB-772841-A (GB)
Title: Method of introducing metal powders into solvents and dispersion media
Inventor: ECKART CARL
IPC: C09B67/02
Filed: 1953-10-12
Abstract: A method of introducing metal powder into solvents or dispersion media or agents consists in filling a closed receptacle with the metal powder and placing the receptacle in the solvent dispersion medium or agent, the material of the receptacle being dissolved.  In Example 1, a receptacle, soluble in varnish is filled with aluminium powder and placed in the varnish.  The receptacle dissolves and the aluminium forms an aluminium paint with the varnish.  The receptacle may be made of mixed polymers of polyvinyl chloride, certain esters from methacrylic acid, cyclized natural rubber or hydrochlorinated rubber or similar plastics which are neutral and easily dissolved in varnish. Alternatively the receptacle may be placed in a varnish solvent and the varnish added later.  In Example 2, to produce foam concrete, aluminium powder is placed in a receptacle soluble in water which is put into a mixture of water lime and pulverized coke product such as Thomas slag or crushed shale.  The receptacle dissolves and the aluminium powder reacts with the water. According to Example 3, metal powders such as bronze or aluminium may be introduced into an aqueous size solution such as is used in the wall paper and fancy paper industry by this method.ALSO:To produce foam concrete, a receptacle soluble in water and containing aluminium powder is put into a mixture of water, lime and pulverized ash product such as Thomas slag or crushed shale. The receptacle dissolves and the aluminium powder reacts with the water generating hydrogen to produce foam.
Patent GB-617798-A (GB)
Title: Improvements in or relating to apparatus for testing the materials of hollow bodies
IPC: G01M3/28
Filed: 1946-09-18
Abstract: 617,798. Testing physical qualities of hollow bodies. CHALMERS, B., and JONES, E. R. W. Sept. 18, 1946, No. 28070. [Class 106 (ii)] Apparatus for measuring strain in the material of a hollow body subjected to internal or external pressure comprises means for measuring a variation in the resistance to flow of a fluid through a passage partly bounded by a surface of the body. A specimen length of tube 1 is sealed at one end by a stub 2 and at the other end is connected by a stub 3 and coupling 8 to a pump supplying fluid under pressure to stress the tube 1, which is clamped to the stubs 2, 3 by coned washers 5 and nuts 6. The tube 1 may lie within an outer tube 10, having a central portion of reduced crosssection, or be positioned therein by spacers 11, 12, the stub 2 being a sliding fit in the spacer 11, and a fluid under low.pressure is pumped through an inlet 14, between the two tubes and through holes in the spacer 11. The resistance to the flow of this fluid is measured by a differential manometer connected to pipes 15 and is compared with that of a similar apparatus in series but including an unstressed tube. Both apparatus may be immersed in an oil bath maintained at any required temperature or heated electrically and any creep of thestressed tube may be observed. Alternatively, the stressed tube may be heated to a desired temperature by the stressing fluid in which case the fluid flowing between the specimen and outer tube is preferably pre-heated.
Patent GB-1358244-A (GB)
Title: Process and apparatus for sewage treatment and waste-water re clamation
IPC: C02F3/18
Filed: 1972-06-15
Abstract: 1358244 Agitating, aerating and circulating liquids G SHELEF 15 June 1972 28125/72 Heading B1C [Also in Division C1] In a process for purifying sewage in the presence of algae in a channelled pond 10, Fig. 2, the pond is formed into channels by partitions 14 and contains baffles 32. The surface aerators 12 comprise beaters 36 (see also Figs. 4 and 5, not shown) and are driven by variable speed motors 40, such that the desired sewage flow rates can be achieved. Only the top portion of the liquid in the pond is discharged during the presence of light by a floating discharge device (see Figs. 6 and 7, not shown). The effluent discharged from the pond may be treated with a flocculant, subjected to a flotation step and treated with activated carbon. The pond may include dividers of asbestos, wood or steel and may be lined with cbncrete, asphalt or polyethylene.
Patent GB-827360-A (GB)
Title: Improvements in resonant-cavity magnetrons
IPC: H01J23/46
Filed: 1958-09-02
Abstract: 827,360. Magnetrons. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 2, 1958 [Sept. 5, 1957], No. 28165/58. Class 39(1) A cavity magnetron has a coaxial output line 3, 4, the inner conductor of which terminates in a recess of an anode segment and merges into two loops 5, 6 in adjacent cavities, the loops terminating on the anode segments bounding said cavities. The loops may be arcuate as shown or may be formed by a straight conductor at right angles to conductor 3.
Patent GB-1395132-A (GB)
Title: Preparation of benzamide derivatives
IPC: C07C233/12
Filed: 1973-06-13
Abstract: 1395132 N - [2 - (N,N - diethylamino)ethyl]- 2 - methoxy - 4 - amino - 5 - chlorobenzamide SOC D'ETUDES SCIENTIFIQUES ET INDUSTRIELLES DE L'ILE-DE-FRANCE 13 June 1973 [22 June 1972] 28204/73 Heading C2C  N - [2 - (N<SP>1</SP>,N<SP>1</SP> - diethylamino)ethyl] - 2- methoxy - 4 - amino - 5 - chlorobenzamide is prepared by reacting a 2-methoxy-4-acetamido- 5-chlorobenzoyl halide with 2-chloroethylamine and reacting the resulting N-(2-chloroethyl) - 2 - methoxy - 4 - acetamido - 5 - chlorobenzamide with diethylamine, followed by alkaline hydrolysis, and may be converted to its pharmaceutically acceptable mineral or organic acid addition salts and its quaternary ammonium salts.
Patent GB-263760-A (GB)
Title: Process for sterilising, ageing and bleaching flour, meal and the like
IPC: A21D2/04
Filed: 1926-11-09
Abstract: 263,760. Staudt, E. Dec. 23. 1925. [Convention date]. Disinfectants.-Flour, meal and similar foodstuff is treated for sterilizing with oxides of halogens, particularly chlorine dioxide, in quantity diminished to the least possible amount which will produce the desired effect while preserving the iood value of the material. The halogen oxide may be used in solution, e.g. in vegetable oils, or in gaseous condition, when it may be mixed with an inactive gas such as air, nitrogen, or carbon dioxide, or with an active gas such as chlorine. Intermediate carriers, such as silica gel, may also be used in applying the oxide. Examples are given of the treatment of flour with chlorine dioxide either admixed with air or absorbed in silica gel. Specification 211,505 is referred to.
Patent GB-468552-A (GB)
Title: Improvements in foot and other medical pads
IPC: A61F13/06
Filed: 1936-10-17
Abstract: 468,552. Corn &c. pads. SCHOLL MANUFACTURING CO., Ltd. Oct. 17, 1936, No. 28309. Convention date, Oct. 17, 1935. [Class 81 (ii)] A pad for protecting sensitive places, e.g. corns, blisters, &c., on the feet and other parts of the body comprises a body structure 10 perforated at 13 to form a recess for accommodating the sensitive place and having a skinadherent coating 14, and a perforated cover ply 11 of fabric adhesively united to the body structure 10 and overlying the shielding recess. The body structure 10 may be made of felt. The adherent layer 14 may be formed by coating the body structure 10, or may comprise a separate ply attached thereto. A ply 16 formed of one or more layers of gauze impregnated with an antiseptic such as trialkali (-sodium) borate may be disposed over the shielding recess. The ventilating perforations 15 in the cover ply may be circular or elongated. The pad may be of oval shape, or of rectangular shape with rounded corners.
Patent GB-616675-A (GB)
Title: Improvements in or relating to show cases for shop counters
IPC: A47F3/00
Filed: 1946-09-21
Abstract: 616,675. Show cases for counters. SMART, N. S. Sept. 21, 1946, No. 28336. [Class 116] A show case comprises front-glass panels 3 and top glass panels 11, 12, the top panels being arranged stepwise to leave gaps facing rearwards so that the shop assistant can easily reach goods within the showcase but the public are prevented from doing so. The show case is open (as shown) or openable at the rear. The panels are supported by brackets each consisting of three uprights 1, 6, 4 and top rails 8, 9 of inverted T-section . The front uprights 1 are of H-section, the channels locating the front panels 3, and may have an extension screwed to the front edge of the counter or the show case bottom or may abut against a bead 2 on the counter. The other uprights are of strips suitably secured to the counter or show case bottom and their upper ends are bent over and fastened to the rails 8, 9. At their front ends the rails have part of the web of the T cut away to leave a tongue which is bent over and secured to the uprights 1, 6. The rails 8, 9, and the top panels supported thereby, are preferably inclined downwardly towards the front of the counter and overlap each other at the gaps. Transverse partitions may be arranged in the plane of the brackets, secured by channel members on the front and rear uprights and pins and cams on the centre upright.
Patent GB-891317-A (GB)
Title: Zigzag mechanism for sewing machines
IPC: D05B19/00
Filed: 1960-08-16
Abstract: 891,317. Sewing machines. FAIRWEATHER, H. G. C. (Singer Manufacturing Co.). Aug. 16, 1960, No. 28339/60. Class 112 In a zig-zag sewing machine a pitman adapted to vibrate the needle bar is adjustably connected to an oscillating element, whereby variable endwise movement is imparted to the pitman, and the oscillating element is pivotally connected to a cam follower which co-operates with a rotary pattern cam and is slidably-pivoted about an axis displaced from the axis of the oscillating element. A pin 61 fixed at its lower end in a boss 64 at the base of the bracket arm 3 of a zig-zag sewing machine. A sleeve 72, mounted on pin 61, seats on boss 64. A bracket 66 has an upright plate 67 which interconnects spaced flanges 68, 69 journalled on pin 61, the lower flange 69 resting on sleeve 72. A pin 77 also passes through flanges 68, 69. A locking plate 78, secured by a screw 83 to the upper flange 68, is formed with a notch 81 which engages a groove 82 in pin 77 to secure the latter in position. A second notch 79 in plate 78 engages a groove 80 in pin 61. A U-shaped plate 84 has a base 86 and upper and lower arms 87, 88 formed with respective ears 89, 90 which are journalled on pin 77, the lower ear 90 resting on a circumferential flange 91 formed on sleeve 72. A cam follower 93, pivoted on a pin 94 carried by an ear 93 on the upper arm 87, has a follower pin 96 which co-operates with a rotary pattern cam 58, and is slidably pivoted on pin 61 by means of a notch 97 in follower 93 engaging a groove 98 in pin 61. A pitman 50 is fixed at one end by a screw 52 to a bracket 51 pivoted on a pin 53 fixed in a needle bar gate 8, the latter being pivoted on a pin 10 fixed in the head 4 of the machine. The other end of pitman 50 passes through a slot 99 in the lower arm 88 of plate 84, and carries at its termination a block 100. A spring 102, coiled about pin 10 and having its respective ends anchored to gate 8 and pin 10, biases block 10 against arm 88, whereby follower pin 96 is biased against cam 58. A bell crank lever 113 carries on one arm a stud 124 engaged in a slot 125 in pitman 50, and carries on its other arm a handle 116. Manipulation of the latter serves to shift block 100 from a position of maximum displacement from pin 77, for maximum stitch width, to a position aligned with pin 77 for straight stitching. In the latter position a lug 128 on block 100 co-operates with the lower end of pin 77 to draw block away from arm 88, which is formed at this position with a depression 130 to ensure clearance between the block and arm. A handle 106, fixed by rivets 107 to the locking plate 78, serves to pivot bracket 66 about pin 61, whereby the position of pin 77 is varied to adjust the centre line of the stitches. Specifications 887,460, 887,461 and 891,316 are referred to.
Patent GB-1109696-A (GB)
Title: Polyalkylene imine derivatives
Inventor: LAGALLY PAUL
IPC: C08G73/02
Filed: 1965-07-05
Abstract: The invention comprises the reaction products of a polyalkylene imine, suitably polyethyleneimine and a cyclic ester formed from a polyalcohol and carbonic or sulphurous acid.  These compounds are prepared by mixing an aqueous solution of the polyalkylene imine with the cyclic ester, preferably in equimolecular proportions, and stirring the resultant mixture at a temperature not exceeding 50 DEG C. until a homogeneous solution is obtained. Suitable cyclic esters are ethylene carbonate, propylene carbonate and glycidol.  The examples describe the reaction between polyethylene imine and ethylene carbonate, and polyethylene imine and propylene carbonate.ALSO:The reaction products of a polyalkylene imine and a cyclic ester formed from a polyalcohol and carbonic acid are useful as preservatives for concentrated solutions of H2O2.  They are also sequestering agents for calcium in water and examples describe the addition of said reaction products to solutions of FeCl3, AlCl3, CuSO4, MnCl2 and CoCl2 at various pH values to obtain, in most cases, clear solutions.
Patent GB-603675-A (GB)
Title: Improvements in or relating to actuating means for vehicle brakes
IPC: B60T11/10
Filed: 1945-10-27
Abstract: 603,675. Hydraulically - operated brakes. ROBERTS, G. P. Oct. 27, 1945, No. 28458. [Class 103 (i)] Vehicle brake - operating means comprises as a unit a master cylinder connected by pipe lines to wheel cylinders of front brakes and a slave cylinder, the piston of which is connected by mechanical means to rear brakes, the unit embodying also a cam or equivalent engaging the mechanical means, whereby the rear brakes may be operated by a hand lever. Means are provided whereby the master piston operates the rear brakes mechanically if the fluidpressure fails and to ensure the hydraulic operation of the front brakes if the mechanical transmission to the rear brakes fails. A master cylinder 11, the piston 13 of which is operated by a pedal and a rod 14 is connected by a port 21 to a slave cylinder 12, the piston 25 of which is connected by a rod 28 having a head 34 engageable with lost-motion with a plunger 35 slidable in an extension 18 of the cylinders 11, 12 and connected by a cable 36 to the rear brakes. The pressure chamber of the slave cylinder 12 into which the port 21 opens is connected to the pipe-lines of the front brakes and by a passage through the piston controlled by a non-return valve 31 to the forward part of the cylinder, thence to a reservoir. Thus, when the master piston 13 is operated, liquid is forced into the slave cylinder to the wheel cylinders of the front brakes and the slave piston is also operated by the hydraulic pressure to operate the rear brakes through the cable 36. Racks 32 formed in the pistons 13, 25 mesh with a pinion 33 slidable in a slot in the casting which forms the cylinders, whereby the piston 25 is operated mechanically by the piston 13 if the hydraulic system fails and if the mechanical transmission to the rear brakes should fail, the forward movement of the piston 25 is arrested by a stop 49 engaging in a slot 50 in the piston, so that the front brakes may still be applied. Operation of the rear brakes can also be effected by a hand-lever connected by a Bowden cable 43 and a chain 42 to a sprocket 41 on a shaft 40 which carries a cam 39 engaging a follower 38 on the plunger 35. A spiral spring 46 acting on the sprocket 41 urges the cam 39 to its normal position against a stop 47.
Patent GB-711945-A (GB)
Title: Improved control of variable pitch propellers
IPC: F15B9/09
Filed: 1952-11-12
Abstract: 711,945. Automatic speed control systems. GENERAL MOTORS CORPORATION. Nov. 12, 1952 [Nov. 30, 1951], No. 28480/52. Class 38(4) In an automatic control system for' a propeller, pitch is variable by a hydraulic servometer controlled by an electrically operated valve subject to electrical signals tending alternatively to move the valve in opposite directions, the signals being equal when speed is correct and being unbalanced in response to signals from a centrifugal device on speed deviation. In Fig. 3, deviations in the speed of an aircraft propeller (not shown) from a desired value are detected by a mass 58, centrifugal force on which moves the rotor 56 of a Selsyn unit 54 mounted on the hub of the propeller. Selsyn 54, which is energized through a transformer T3 from :an A.C. source, is electrically connected to a second Selsyn 45 the rotor of which is adjustable to set the desired speed. The arrangement is such that an A.C. signal, produced by the rotor 47 of Selsyn. 45, corresponding in magnitude and phasesense with the magnitude and sense of speed deviation, is applied through a transformer T2 to the grid circuits of A.C. operated double-triode valves V1, V2, to produce across condensers C3, C4 equal and opposite direct voltages of corresponding magnitude and polarity. Differential cornponents of the speed deviation are introduced by networks C5 R3, C6 R4 and the resultant voltages applied to adjust in opposite senses the pulse ratios of the two sections of a multivibrator circuit formed by a double-triode valve V3. The two sections of a double-triode valve V4 are thus caused to conduct alternately for periods dependent on the speed deviation to produce a corresponding resultant energization of opposed solenoids 22, 23 through a relay 77 from a D.C. source. Solenoids 22, 23 operate the control valve of a fluid-pressure servomotor (not shown) correcting propeller pitch. Further speed correction is provided by comparing at 84 the frequency of an alternator 52 driven with the propeller with the frequency of a standard oscillator 83, any deviation causing operation of a stepping motor 85 to correct speed by adjustment of rotor 47. Alternatively, motor 85 may adjust. a differential Selsyn connected between Selsyns 54 and 45.
Patent GB-406949-A (GB)
Title: Feeding mechanism for sewing machines
IPC: D05B27/02
Filed: 1933-10-16
Abstract: 406,949. Sewing-machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) Oct. 16, 1933, No. 28519. [Class 112.] A feed-bar mechanism with main and auxiliary dogs is provided with adjustable means for varying the throw of one of the dogs relatively to the other for accurate co-ordination when operating on delicate fabrics. The main dog 26 and auxiliary dog 17 are given their rocking movements by the pitman 9, connected to the main shaft 2, and the feed rocker 5. They are given their up-and-down movements by the feed-lift eccentric 35. The dog 17 is carried by an auxiliary feed bar 15 to which the main feed bar 22, carrying the main feed dog 26 is connected by a rib 23 entering a groove 19, Fig. 4, and a stud 20 entering an aperture 24. The other end of the bar 15 is connected to the pivot pin 8 carried by arms 6, 7, of the feed rocker. The end of the bar 22 pivoted to a lug 28 on one end of a short link 29 is connected to an adjustable block 30 by the screw 301. The arm 7 of the feed rocker is provided with a channel 31 which the rib 32 of the block 30 enters, the block being adjustably secured to the arm 7 by the thumb screw 33. As the main feed bar is pivotally connected to the adjustable block 30, the pivotal connection between the main feed bar and the feed rocker may be moved relatively to the axis of the feed rocker, thereby varying the throw of the main feed bar and permitting co-ordination of the two dogs.
Patent GB-1069459-A (GB)
Title: Carbon products and manufacture thereof
IPC: D01F9/24
Filed: 1965-07-06
Abstract: Carbon articles are formed by sintering in an inert atmosphere a shaped synthetic polymer which comprises substantially the condensation product of pyrrole and furfural.  The proportion of pyrrole to furfural may be 30-50 weight per cent.  The shaped polymer may be heated to, e.g. 1300 DEG  C. with a temperature rise of 100 DEG  C./hour, particularly from 300-500 DEG  C.  A specified inert atmosphere is N2. The polymer may be shaped in a mould to produce, e.g. plates, sheets or cylinders.