baber/WOPTO huggingface dataset:
Patent GB-355799-A (GB)
Title: Improved building brick or block
IPC: E04B2/42
Filed: 1930-05-28
Abstract: 355,799. Building bricks. WALKER. W. F., 40, Warwick Street, Old Lenton, Nottingham. May 28, 1930, No. 16416. [Classes 20 (iv) and 87 (i).] A brick of the type employed in making walls with continuous vertical and horizontal cavities comprises longitudinal strips D extending sub.. stantially across the inner portion of its upper surface and adapted to interlock with a corresponding recess H on the lower surface, so that when a wall or other structure is being erected and one brick is placed over another, the strips D of one brick fit into the recess of the other ; the brick is also provided with recesses A at each end, the centre portion B being sloped down towards the recesses, so that moisture may run into the recesses. The bricks may be of different sizes so that when laid in the wall, shown in Fig. 4, they may bond like ordinary bricks. One or two vertical perforations C may be provided in the centre portion B. A brick may also be provided for laying with the above bricks having an extension piece with strips on its upper surface and a recess underneath.
Patent GB-219959-A (GB)
Title: Improvements in and relating to steam and gas turbines
IPC: F01D13/00
Filed: 1924-07-09
Abstract: 219,959. Erste Br³nner Maschinen- Fabriks-Ges. July 31, 1923, [Convention date]. Void [Published under Sect. 91 of the Act). Drawings to Specification. Reversing.-One or several of the rotor discs of a multi-stage impulse turbine are provided with additional rings of blades for reversing or for producing a braking action. The bladings may be arranged either for a flow of steam in the same axial direction as in the ahead bladings or in the reverse direction.
Patent GB-976060-A (GB)
Title: Arrangements for measuring the deflection of rotating bodies
IPC: G01B11/16
Filed: 1963-04-26
Abstract: 976,060. Electric selective signalling. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. April 26, 1963 [April 27, 1962], No. 16516/63. Heading G4H. A digital indication of the deflection of a rotating body 1 due to the rotation, in a direction parallel to the axis of rotation, is obtained by reflecting light from a sphere 3 on the body so that the light scans across means 6 having alternate transparent and opaque strips of different lengths so that the number of strips scanned across depends on the deflection. In the Figures, a sphere 3 is mounted on the end of each of three helicopter blades 1 rotating about a shaft 2, to reflect UV light from a mercury lamp 4 through an image-flattening optical system 5 on to a lined screen 6 (Figs. 1, 2), the number of lines being different at different heights on the screen. Consequently a photomultiplier 8 behind screen 6 receives a number of pulses depending on the bending up or down of the end of the blade 1, these pulses being counted in a counter 11. The counts for successive blades are fed by a gating unit 15 controlled from shaft 2 to counters 13a, 13b, 13c, one for each blade. Luminous figure indicators 13d, 13e, 13f show the counts, or alternatively the change from the last counts for the respective blades. Pen-recorders 12a, 12b, 12c, also record the analogue equivalents of the counts. The arrangement enables a "continuous", record to be obtained of the variation of the extent of bending with variation in speed and pitch.
Patent GB-479328-A (GB)
Title: Improvements in or relating to sound translating devices
IPC: H04R1/34
Filed: 1937-06-15
Abstract: 479,328. Sound directing appliances. ELECTRICAL RESEARCH PRODUCTS. Inc. June 15, 1937, No. 16550. Convention date, June 18, 1936. [Class 13] [Also in Group XXXIX] In a sound-translating device comprising a Transmitter and a diaphragm and means forming a plurality of paths for sound waves passing to the diaphragm, the paths are in the same direction, are of different lengths, and terminate in a common plane adjacent the diaphragm so that the device is responsive substantially only to waves travelling in the direction of the said paths. As shown the paths are formed by spirally arranged tubes 14 mounted in a ring 16 threaded into a coupler member 13 having one end adjacent the diaphragm 26 of the transmitter 11. The coupler is divided by a member 20 into compartments filled with damping material 21, such as hair felt, and an acoustic resistance screen 22 is disposed across the coplanar ends of the tubes 14. The lengths of the tubes increase in an arithmetic progression, the shortest tube having a length of about one inch and the longest tube being about five feet in length and approximately equal to the wave length of the lowest frequency for which the device is to be directional.
Patent GB-1129937-A (GB)
Title: Fluid flow machine such as a gas turbine engine
Inventor: RHODES JOHN KENNETH
IPC: F01D3/04
Filed: 1967-04-11
Abstract: 1,129,937. Gas turbine engines; axial-flow compressors. ROLLS-ROYCE Ltd. April 11, 1967, No. 16614/67. Headings F1C, F1G and F1T. [Also in Division G3] A fluid-flow machine such as a gas turbine engine having a rotatable assembly mounted in a thrust bearing with freedom of limited axial movement comprises control means responsive to axial movement of the rotatable assembly or the bearing in response to a departure of the axial load on the bearing from a predetermined magnitude to control a pneumatic or hydraulic pressure applied to a substantially axially facing surface on the rotatable assembly or the bearing so as to compensate for the departure and maintain the axial load substantially constant, the control means including a variable restriction formed between a surface of the bearing and the fixed structure, a fluid pressure dependent on the restriction being used as a signal pressure in the control means representative of the axial position of the bearing. The by-pass or fan-type gas turbine engine shown in Fig. 1 comprises an H.P. compressor 102 driven by an H.P. turbine 104 through a shaft 103 mounted in ball thrust bearings 105, 106. Resilient woven metal spacer rings 115, 116, Fig.2, allow limited axial movement of the bearing outer races 107, 108, in response to changes in the axial load on the bearings, rotation of the outer races being prevented by teeth 114 engaging fixed teeth (not shown). Such axial movement changes the spacing between an orifice 118 and the adjacent surface of the outer race 108, causing a change in the rate of flow of air out of the orifice. This changes the air pressure P s  in a passage 117 between a fixed restrictor 119 and the orifice 118. The change in the pressure P s  is communicated via a conduit 134 to a servovalve 135 to produce a change in the pressure P o  of compressed air communicated via a conduit 139 to a chamber 128 downstream of the turbine rotor disc 126. The resultant change of axial load applied by the pressure P o  to the rotor disc 126 compensates for the initial change in the axial bearing load. The air used for the control is bled from the H.P. compressor 102 via a conduit 131, a filter 138 and a valve 136 which controls the input pressure P i  to the servovalve 135 and to an air regulator 132. The pressure P r in a chamber 124 bounded by a cylindrical member 125 and a sealing ring 122 is applied via a probe line 137 to the regulator 132 to regulate the output pressure P r  of the latter. Air at the regulated pressure P r  is supplied via a line 133 and a drilling 120 to the fixed restrictor 119. Oil or other hydraulic fluid may be used to control the servovalve 135.
Patent GB-935096-A (GB)
Title: By-pass valve arrangement for interconnecting the ends of a steam locomotive engine cylinder
IPC: F01B25/00
Filed: 1960-05-11
Abstract: 935,096. Steam engines. R. N. SINHA. May 11, 1960, No. 16631/60. Class 122 (3). In a steam locomotive engine cylinder by-pass valve arrangement, a by-pass valve is fitted at each end of the cylinder and comprises a valve body formed in two parts 1, 2 and a valve member 3 having a vertically disposed stem 3A and arranged so that it is closed by the steam pressure in the steam chest when the engine regulator valve is opened and opened by falling under its own weight when the regulator valve is shut. The valve member 3 controls communication between passages A and B connected respectively to the cylinder port and the steam chest. When the pressure beneath the valve member 3 falls due to closing the regulator valve the member 3 drops on to a stop 6 and allows free flow of residual steam or air in the cylinder through passages 6A. The stem 3A is slidable in a bush 4 and extends into a housing 2B closed by a nut 5 having an oil hole E. In a modification, Fig. 2 (not shown), opening of the valve is assisted by a spring.
Patent GB-912852-A (GB)
Title: Mixing valve with thermostatic control
IPC: G05D23/13
Filed: 1961-05-08
Abstract: 912,852. Valves. A.S.W. APPARATENFABRIEK N.V. May 8, 1961 [May 16, 1960], No. 16661/61. Class 135. A thermostatic mixing valve has the flow from hot and cold inlets A, B controlled by a valve 3 actuated by a rod 9 connected to the junction 8 of differential bellows 6, 7 forming with an outer cylinder 10 an annular chamber containing expansible fluid for sensing the temperature of the mixed fluids flowing through the bellows. The mixture temperature is selected by adjusting the ball anchorage 13 of the bellows by knob 5.
Patent GB-585790-A (GB)
Title: Improvements in or relating to self-balancing electrical bridges
IPC: F24H9/20
Filed: 1941-12-25
Abstract: 585,790. Impedence measurements. HOLLOWAY, D. G. Dec. 25, 1941, No. 16626. [Class 37] A self-balancing bridge in which an out-ofbalance voltage derived from the bridge is utilized to adjust one or more bridge components. so as to restore the balance comprises an adjustable bridge component having a non-linear characteristic and means for controlling the relation between the out-of-balance voltage and the control energy for the said component derived from the said voltage in accordance with the adjustment of said component in such a manner that changes in sensitivity which would otherwise be caused by the non-linear characteristic of the component are reduced or eliminated. The bridge shown is basically the same as that described in Specification 581,161, and consists of a pair of tightly coupled inductive ratio arms 1, 2, an adjustable capacity 3, and a capacity 4 to be measured, which latter capacity is a function of the height of an aircraft. Out-ofbalance voltages developed across a winding 5 coupled to one or both of the ratio arms are amplified in an amplifier 6 and applied in pushpull to a pair of rectifiers 7, to each of which an A.C. voltage derived from the A.C: generator 8 supplying the bridge is applied in push-pull via a phase adjuster 9. The rectified output voltages from each of these rectifiers are applied in opposition to a further amplifier 10 and the output of this is fed to the actuating winding 11 of a moving-coil milliammeter, the pointer of which carries the movable electrode of the condenser 3. The bridge generator 8 is connected to the moving electrode of the condenser 3 through a series resistance 12, and a shunt condenser 13 is connected to earth. A bridge voltage component in quadrative with that applied to the bridge is thus injected in series with the adjustable capacity and a voltage in quadrature with the out-of-balance voltage thereby injected into the coil 5 feeding the amplifier 6. The amplitude of this out-of-balance voltage is arranged to be such that it gives rise to overloading of the amplifier 6 when the condenser 3 is adjusted to its higher values of capacity, so that undesirable increase of bridge sensitivity is reduced or eliminated by the decrease of gain resulting from the overloading. Instead of causing the amplifier to overload it may have an automatic volume control circuit which reduces the gain by controlling the bias. Other forms of phase changing network may be used instead of the resistance 12 and capacity 13. In a modification a second variable impedance, such as a condenser, may be adjusted simultaneously with the condenser 3 to feed the quadrature voltage to the amplifier. Alternatively the gain of the amplifier may be controlled in accordance with the adjustment of the condenser 3 by further means such as a potentiometer for controlling the bias of one or more valves. The invention is applicable to selfbalancing bridges employing differential condensers as described in Specification 585,789.
Patent GB-668870-A (GB)
Title: Smoke-producing plant
IPC: F23K3/14
Filed: 1949-06-23
Abstract: 668,870. Smoke producers. MIRRLEES WATSON CO., Ltd., and WATSON,-F. W. H. June 2, 1950 [June 23, 1949], No. 16692/49. Class 81 (i). [Also in Group XII] A smoke-producer, for use in the curing industry, comprises a casing with an outlet for the smoke at its upper end and enclosing in its lower portion a retort through which the fuel is fed upwardly by a mechanical stoker, and a rising ring fitted round the retort structure so that the fuel, before ignition, rises to the top of fuel bed and is distributed by a rotary spreader arranged immediately above the grate. Sawdust, peat or other fuel is fed to the retort 13 by a worm 15 at a controlled rate, and a measured amount of water, proportioned to the amount of fuel entering the fire, is added to the fuel through a pipe 26. The incoming fuel rises through a ring 18 surrounding the top of retort 13 before ignition, and is spread over the top of the fuel bed on a perforated grate 16 by spreader blades 17 carried by a vertical shaft 22 driven from an extension 23 of the stoker worm shaft. Air for combustion enters the fuel through perforations in the grate 16 at a rate controlled at the suction side and the delivery side of the air supply fan. A smoke filter 27 may be provided below the smoke outlet 12.
Patent GB-169277-A (GB)
Title: Improvements in or relating to the treatment of fabrics, particularly those used in the manufacture of gas mantles
IPC: F21H3/00
Filed: 1920-06-22
Abstract: 169,277. Robin, J. T. June 22, 1920. Liquids and gases, treating with.-A process of de-nitrating fabrics impregnated with a solution of thorium and cerium nitrates, particularly those used in the manufacture of gas mantles, consists in heating a solution of ammonia to produce ammonia fumes within, or practically within, a closed container in which the dried fabric is placed. In one form of apparatus, ammonia solution in a vessel E is heated to boiling point by a burner F, the fumes passing through a sleeve D into an asbestos-lined cupboard A provided with a door. A gauze screen C<1> is slidably mounted on bars A<6> and the dried impregnated fabric X is suspended on aluminium rods B<1> carried by a frame B slidably mounted on bars A<5>. An opening G provided with a slidable cover K leads to a flue G<1> connected to a casing containing an electrically-driven fan. A projection on the cover serves to indicate when the opening G is open or closed. The hands L<1> on a dial plate L may be set to indicate the time at which the action will be completed. A series of such cupboards having independently movable covers for controlling the openings leading to a common flue may be employed. Any excess of ammonium nitrate deposited on the fabric is removed by washing in distilled water.
Patent GB-151393-A (GB)
Title: Improvements in incandescent gas burners
IPC: F21H1/00
Filed: 1919-07-05
Abstract: 151,393. Casbon, W., and Dunkinson, A. J. July 5, 1919. Incandescent gas burners.- A baffle c is arranged within the burner tube of an inverted burner and is applied to and formed integral with the procelain &c. burner mouth b. The port into which the burner mouth b is screwed is enlarged to form a chamber e for the reception of the baffle. Specification 17089/15 is referred to.
Patent GB-988565-A (GB)
Title: Improvements in or relating to industrial lift trucks
Inventor: DOLPHIN JOHN ROBERT VERNON
IPC: B66F9/10
Filed: 1960-05-13
Abstract: 988,565. Masted lift trucks. LANSING BAGNALL Ltd. May 15, 1961 [May 13, 1960; Oct. 27, 1960], Nos. 16918/60 and 36972/60. Heading B8H.  The mast assembly 19 of a lift truck is mounted on rollers 18 running in horizontal tracks 17 on a turntable 15. A lifting carriage 20 on the mast assembly supports forks 27 and a support 21 for the operator and a control panel. The mast assembly 19 is capable of overhanging the base frame 11 so that the forks 27 may be lowered to the ground at the front or on either side of the base frame; In a second embodiment, Fig. 3, the lifting carriage 35, guided on masts 34 rigid with the chassis, is provided with a support 37 for the operator and control panel and with a platform 36 which supports a turntable 44. A reach carriage 47 with forks 48 is movable on guides 45, 46 which are mounted on the turntable. Specification 988,566 is referred to.
Patent GB-724144-A (GB)
Title: Steroids
IPC: C07J5/00
Filed: 1952-07-08
Abstract: The invention comprises 11(a )-acyloxy-17(a )-hydroxyprogesterones, and the preparation thereof by reacting 11(a ), 17(a )-dihydroxyprogesterone with an acylating agent.  Examples disclose the use of acetic, propionic and succinic anhydrides, formic acid, and benzoyl chloride as acylating agents.  Specification 724,094 is referred to.
Patent GB-794718-A (GB)
Title: Improved apparatus for the treatment in a closed container of garments on formers
IPC: D06B5/24
Filed: 1954-06-11
Abstract: <PICT:0794718/IV (b)/1> <PICT:0794718/IV (b)/2> <PICT:0794718/IV (b)/3> Apparatus for treating stockings comprises a cabinet 1, Figs. 1, 2, having front and rear sliding doors 5, 6, steam being supplied to the cabinet through an inlet pipe 42 and valve 44 and exhausted therefrom through a valve 45 and pipe 43, pairs of guide rails 9 at front and rear of the cabinet each mounting three carriers manually movable on wheels 17, and cross rails 18 for guiding plate-like former supports 19 into and out of the cabinet on wheels 20.  The formers 16 are swingably hinged to the carriers about pins 22, Fig. 2, and are closed up from a fanned-out position upon entering the cabinet by clips 62 and rollers 63.  In operation, groups of ready-loaded formers at one side of the apparatus are displaced manually first along the rails 9, and then along the rails 18 into the cabinet 1, after which the doors are closed by an electric motor 38 rotating gear wheels 37 and lead screws 30, 31 through a safety slipping clutch 65 to slide nuts 32, 33 attached to the doors.  An electric motor 54 is then automatically started to rotate a cam device 50, Fig. 1, which operates the steam inlet and exhaust valves 44, 45 through push rods 46, 47 with rollers 48, 49, in timed sequence.  On completion of the treatment cycle, the motor 38 which was automatically switched over for reverse rotation, is started up by the device 50, the motor 54 is stopped, the doors are opened, and the formers are removed on the carriage.  Loaded formers on the other side of the apparatus may now be wheeled into the cabinet whilst the already treated formers are stripped.  In a modification, Fig. 5 (not shown), the sliding doors are rack and pinion operated by a pneumatic cylinder, and are locked and sealed by movement of another pneumatic ram which has a roller co-operating with a wedge on the inside of the door.  The inlet and exhaust valves, and the whole treatment sequence is performed by pneumatic cylinders operating one after another in timed relation.  In a further arrangement a synchronous motor rotating a studded disc forms the timing device, the studs operating motor switches or other electromagnetic devices to perform the various parts of the cycle.
Patent GB-369811-A (GB)
Title: Improvements relating to carriages for typewriting machines
IPC: B41J11/14
Filed: 1931-06-16
Abstract: 369,811. Typewriters. FAIRWEATHER, D. K., 65, Chancery Lane, London.-(Underwood Elliott Fisher Co. ; 342, Madison Avenue, New York, U.S.A.) June 16, 1931, No. 17438. [Class 100 (iv).] Platen - shift mechanism.-T h e platen frame is sprung into place between the shift arms and has gudgeons carrying collars for engaging hooks on the shift arms, ball bearings being interposed between the platen frame and the hooks. The shift arms are secured to a rock-shaft detachably and adjustably mounted on eccentric gudgeons on the carriage. Adjustable stops of the character described below are provided for limiting movement and preventing vibration of the platen frame. Each endplate 12, 13, as shown in the Figure, of the platen frame is provided with a stud 45 carrying a loose collar 48 for engaging the hook 43 of the associated shift-arm 39. The collar is retained by a headed screw 49, and a ring of balls mounted in a spacer 53 abuts on a hardened flange 54 on the collar and a hardened washer 55. The platen frame is slightly over-length and when sprung into place is held tightly between the shift arms, free shift-movement being, however, permitted by the balls. The shift 'arms are secured to a shaft 50 having at each end a socket for engaging a pin 60 on an eccentric 61 which is mounted in a lateral boss 62 on the carriage and plates 18, the shift arms overlying the carriage endplates 18. The bosses are split and provided with binding- screws. The pins and the ends of the shaft are hardened. The eccentrics can be turned independently to adjust each end of the platen, and on withdrawal of the eccentrics, the shaft and the shift arms can be removed as a unit. The carriage is provided at the front and at each side with a yielding stop 69 co-operating with lugs 70, 75 on the platen frame to limit the shift movement. The stops have inclined and flat parts 69, 74 for engaging the lugs 70, 75, and an inclined part 71 which enters a grooved block 73 on the carriage and engages a clamping-screw 76. Adjustment of the stops adjusts the shift movement of the platen frame without altering the normal position thereof. To prevent the stops from yielding excessively, the platen frame is provided with lugs 79 which are normally a slight distance above projections 78 on the endplates 18. The stops may be made by drawing a sheetmetal cup and removing the bottom. The platen frame is provided at the rear with yielding stop-plates 80 normally resting on flats 81 on the bosses 62, each stop-plate being formed on a bracket 82 and having a bend 87 to permit of adjustment. Vibration of the platen frame during rapid operation of the machine is prevented by means of a yielding stop or bumper 92 carried by the platen frame and arranged a minute distance above the shift rail 32. Preferably, the bumper is mounted at the left-hand end of the platen frame and consists of a blade 91 which is secured to a block 88 and has an adjustable foot 92 forming the bumper.