baber/WOPTO huggingface dataset:
Patent GB-829272-A (GB)
Title: Improvements in and relating to faucets for water sterilizing boilers
Inventor: BUTLER RICHARD ARTHUR
IPC: C02F1/02
Filed: 1958-05-07
Abstract: 829,272. Valves. BRITISH STERILIZER CO. Ltd. May 7, 1958, No. 14603/58. Class 135. A faucet, for a water sterilizing boiler, comprises a body 1 having a valve seat co-operating with a closure member 4 slidable with lostmotion relative to a spindle 5 which is urged by a spring 10 abutting a body part 7 into contact with an actuating assembly, which assembly comprises a cover 12 slidable coaxially with the stem 5 on the body part 7 and a handle 13 connected to a liner formed with a skirt 17 rotatable relative to the cover by means of rollers 16 and pivot bearing 15. To close the faucet the handle 13 is pushed in so that a pin 19 in the skirt moves along the long arm of an L-shaped groove 20 in the body and is then rotated along the short arm so that the valve is held closed, when sterilizing steam fed from the boiler through a pipe 27 to a bellows 25 acts on a pivoted lever 21 to lock the pin 19 in the short arm of the L- shaped groove to prevent the actuation of the valve until the sterilizing cycle is complete and through a pipe 28 to a port 30 within the valve body where it circulates around the valve members and outlet spout 8 and finally drains through a union 32 to a steam tap, the cover 12 seating at 33 preventing unwanted escaping steam. The mounting of the valve member on the stem 5 with lost motion enables the cover 12 to be made to clear the spout 8 without spoiling the starting or stopping of the flow therefrom.
Patent GB-907137-A (GB)
Title: Controls for synchronous alternating machines
IPC: H02H7/08
Filed: 1960-04-27
Abstract: 907,137. Control of A.C. motors; protective cut-out arrangements. WESTINGHOUSE ELECTRIC CORPORATION. April 27, 1960 [May 7, 1959], No. 14707/60. Classes 38 (3) and 38 (5). A pull-out protection circuit for a synchronous machine having a field winding adapted to be connected to an excitation source comprises means responsive to a predetermined number of transient field current waves exceeding a predetermined amplitude for providing a trip signal and means responsive to said trip signal for disconnecting the field winding from the excitation source. As shown, a synchronous motor 8 has a field winding 10 connected to D.C. excitation leads 14 by way of a field contactor 16. Under pull-out conditions a transient alternating slip current is induced in the field winding. A pulse generator comprising a saturable magnetic core 32 with windings 34, 40 and 42 senses the induced current and produces a pulse whenever this current has a negative instantaneous value greater than a certain magnitude. An integrator 4 comprising a transistor 100, a resistor 118 and a capacitor 114 counts the pulses and transmits a trip signal over a Zener diode 214 to a transistor trigger circuit 6 after a predetermined number, e.g. from two to five, of pulses across the capacitor 114, whereby the trigger circuit is actuated to trip the contactor 16.
Patent GB-433900-A (GB)
Title: Improvements in apparatus for playing a game of skill
IPC: A63F9/14
Filed: 1934-05-16
Abstract: 433,900. Race-game apparatus. OWEN, B., 474, Lytham Road, Blackpool. May 16, 1934, No. 14736. [Class 132 (ii)] In a race game wherein each competitor operates a pump or bellows E to burst a toy balloon A, each balloon is connected by a pipe a to an aperture b in a plate B, each pump E is connected by a pipe e to an aperture c in a flanged annular disc C and a cylinder D is provided with a series of passages d<1> Fig. 3, to connect the balloons with their respective pumps, alternating with passages d<2>, Fig. 4, serving to connect both the balloons and pumps to the atmosphere, the cylinder being rotated through a handle D<2> to the terminal positions determined by a pin c<2> coacting with a slot d<5> in the cylinder to bring either series of passages into operation. A ball-valve d is arranged in each passage d<1>. Each pump is actuated by vertically reciprocating a handle e<1> of a lever e<3> connected by a pin and slot to the piston rod e<2>. Each cylinder E, Fig. 6, is provided with ports e' and the plunger e<6> is made hollow and provided with ports e<9>, whereby, should the stroke be made too large, air is allowed to escape from the port e' instead of being delivered to a balloon.
Patent GB-1480242-A (GB)
Title: Development of silver halide emulsions
IPC: G03C5/30
Filed: 1975-03-25
Abstract: 1480242 Development process AGFAGEVAERT 25 March 1975 [3 April 1974] 14802/74 Heading G2C In a method of producing a photographic silver by development of a photographic element having a layer containing developable silver halide, an organometallic complex or iron (II) and an aminocarboxylic acid containing at least one mono- or di(carboxyalkyl)aminoalkyl group and at least one hydroxyl group or a water-soluble salt thereof is used as the or a developing agent. The aminocarboxylic acid suitably corresponds to the formula wherein M represents a cation, R represents hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, aralkyl or substituted aralkyl, y is 0 or 1, n is a positive integer, x represents 0 or provided y is 1 may be a positive integer, each of A 1 , A 2  and A 3 , the same or different, represents hydrogen, alkyl or substituted alkyl, and z represents alkylene or alkylene-phenylene-alkylene, the amino group(s) in the molecule being secondary or tertiary amino group(s) and the molecule containing at least one hydroxyl group in one or more of A 1 , A 2 , A 3 , R and Z. Substituents in A 1 , A 2 , A 3  may be aryl, hydroxy, alkoxy, carboxy, sulpho or phosphous. An organic auxiliary developing agent e.g. 1-phenyl- 3-pyrazolidinone or a derivative thereof may additionally be present. Exhausted developer can be recovered by electrolytic reduction. The complex can be formed in the developing solution or by incorporating the specified water-soluble amino carboxylic compounds in the photographic element.
Patent GB-199239-A (GB)
Title: Improvements in sheet separators for printing presses
IPC: B65H3/56
Filed: 1922-05-26
Abstract: 199,239. Martin, C. H. May 26, 1922. Sheet-separators. - Sheets are fed from a pile to a printing-press &c. by a pneumatic sheet-separator 3, which separates the top sheet and carries it over a barrier 1, and any sheets adhering to the top sheet are separated from it by resiliently mounted projections 2 normally extending over but not in contact with the top sheet, the projections 2 being displaced out of the path of the sheet held by the separator 3 and being returned to contact laterally against the edges of any adhering sheets to detach them from the separator. The sheet-removing device is formed as an attachment which can be secured to pneumatic separators of known kind. As shown, the projections 2 are formed on spring arms 9 secured by rivets 10, and screws 10<1>, 10<11>, to a clip 11 mounted on a shaft 12 supported by bearings from the barrier 1. An adjustable spring 9' presses the clip so as to cause the projections to extend over the edge of the pile. As the separator 3 is raised, the arms 9 are moved away from the pile by the action of the top sheet, or by the action of a roller 17 carried by the separator on the curved end 18 of an arm 12' on shaft 12. The arms return under spring action in time to move laterally any sheets adhering to the top one. The clip 11 is formed with corrugated strips 11' which act through slots in the barrier 1 and press on the sheets to break down local adhesion between them. For acting on long sheets an attachment with a long shaft 12 is used, and in addition to a central tappet member as described, adjustable auxiliary tappet members are also employed. In a further modification, a tappet spring 9, Fig. 7, having a projection 2 is fastened directly to a clip 11 by a rivet 10, and the ends of the clip are bent to engage the barrier 1.
Patent GB-514911-A (GB)
Title: Apparatus for washing soot and dust from gases discharging from chimneys
IPC: B01D47/06
Filed: 1938-05-18
Abstract: 514,911. Washing gases. GRIT ABATERS, Ltd., and HEGBOURNE, W. G. May 18, 1938, No. 14871. [Class 55 (ii)] A soot or dustcollecting device for attachment to chimneys comprises a collecting chamber 1 into which gases pass from the chimney before escaping through an unobstructed outlet at the upper end of the chamber, which has a cross sectional area greater throughout its length than that of the chimney opening and extends below this to form a sump ; a baffle 6 above the chimney opening diverts the gases out to impinge on the chamber wall, and a spray 3 in the chamber above the baffle directs water downwardly against that part of the wall near the baffle on which the gases impinge. One or more frusto-conical baffles 8, 9 are arranged on the chamber walls. The spray 3 is centrally located, or a series of nozzles is arranged on the chamber walls directed centrally and downwardly to wet the walls near the baffle 6. The bottom of the chamber is flat or inclined, is washed by a spray 13 and has a water outlet 15. Specification 457,060, [Group X], is referred to.
Patent GB-1485267-A (GB)
Title: Lever-lock
IPC: E05B15/16
Filed: 1975-04-03
Abstract: 1485267 Lever lock EVERED SECURITY PRODUCTS Ltd 3 April 1975 [4 April 1974] 14951/74 Heading E2A A lever lock 10 comprises a case 11, a bolt 16 slidably mounted in the case for movement into and out of an operative position in which part of the bolt projects outwardly of the case, a bolt-actuating link 25 is pivotally mounted on stump 26 in the case 11, directly engages the bolt 16, is engageable by a cam 29, and is controlled by a camoperated security lever 31 having a surface 35 engageable by the cam, the cam 29 being drivable, by a key (not shown), through a cylinder lock 28 mounted in or on the case. The bolt 16 has a guide slot 19 formed therein to receive a fixed guide plate 21 carried by and extending between side walls 13 of the case 11. The bolt-actuating link 25 has a recess 30 to receive the cam 29 therein, a part-cylindrical projection 24 which is received by a recess 23 formed in the bolt 16, a talent 34 received in a gate formation 33 of the security lever 31, and is urged by a spring 42. The security lever 31 is carried by a pivot 32, is urged by springs 36, 37, and has an end surface 46 which is engageable with a stump 45 to prevent the lever lock from being forced open. Apertures 47 are provided for micro-switches used for a burglar alarm, for example. In use the turning of the key in the cylinder lock 28 causes the cam 29 to release the talent 34 in the gate formation 33 and to rotate the link 25 so as to move the bolt 16 via the projection 24 and the recess 23. The spring 42 acts on a nose 41 of the link 25 to provide an over dead-centre action and ensure positive operation of the mechanism.
Patent GB-119304-A (GB)
Title: A New or Improved Substitute for Leather and Process of and Apparatus for Manufacturing the same.
Inventor: WARD JOHN
IPC: C08L17/00
Filed: 1917-10-16
Abstract: 119,304. Ward, J. Oct. 16, 1917. Plastic compositions containing fibres, indiarubber, &c.-A substitute for leather consists of coarse felt impregnated and covered with a mixture of leather powder, vulcanized rubber powder, and free sulphur, heated to a semi-liquid state, with which may be incorporated resin, sodium silicate, and colouring-matter. Leather scrap or waste is roasted in a hot air kiln until it is crisp, and is then ground into a powder. Eight parts by weight of the powder are mixed with two parts of vulcanized rubber which has previously been worked into a fine powder in a cold-chamber grinding-mill, the mixture being rendered more solid if desired by the addition of one part each of resin and sodium silicate. One part of sulphur is added, and a colouring ingredient also if a coloured product is required. After mixture and heating, the material is forced in a semi-liquid condition into the open pores and coated on the surface of coarse felt and cooled until solid.
Patent GB-144294-A (GB)
Title: Improvements in the manufacture of envelopes
IPC: B31B19/00
Filed: 1920-06-02
Abstract: 144,294. Parks, F. J. April 11, 1917, [Convention date]. Envelopes, making.-Relates to the manufacture. of that type of envelope in which a pocket g, Fig. 17, is formed along one edge of the mouth for the reception of the closing-flap in order that the envelope may be readily opened for the examination of the contents. The process consists in taking a blank that has been folded transversely, as shown in Fig. 11, then folding it successively along two lines e, f, Figs. 13 and 16, parallel with and near to the edge of the blank, and finally folding and sealing the longitudinal flaps j. In making the envelopes, a blank a of the shape shown in Fig. 3 is placed on a feed-table 10 having a series of inclined feed-rollers 11 which impel the blank against a gauge 12, 14 and then feed it between rollers 16, Fig. 1. The blank is carried on between rollers 17, 19 and then between guide-strips 21, 22 until it is arrested by stops 23. The stoppage of the blank causes it to buckle into the bight of two rollers 17, 18 which grip the flexure thus forming the first transverse fold b, Fig. 11. The rollers 17, 18 then feed the blank between guide strips 28, 29 where it is again arrested by a stop 31, so that it buckles in between a pair of rollers 18, 32, thus forming the fold e, Fig. 13. The fold f, Fig. 16, is formed in the same way by rollers 32, 36, and the blank, now having the closing flap and the pocket g formed and folded, is fed into a shoot 41, Fig. 1, where it is arrested and straightened by stops 45. An endless band 43, provided with grippers 44, passes around a drum 42 adjacent to the shoot, and a gripper enters and engages the folded flap, as shown in Fig. 8. At the same time, the steps 45 are removed from the shoot and the gripper carries the blank past scoring or creasing rolls 70, 71, Fig. 2, which form the side flaps j, gumming-rolls 72, 76, and twisted rail folders 80 which fold over the side flaps j, as shown in Fig. 17, thus completing the envelope. The various feed rollers may be grooved or roughened to ensure feeding of the blank, and the grippers 44 may be roughened as shown at 90, Fig. 8, in order to withdraw the closing flaps from the pocket g ready for the insertion of the contents. If desired the machine may be fitted with a device for feeding a web of paper from which the blanks are cut, and the folding-rollers may be replaced by other known folding-devices or used in conjunction with a striking-blade.
Patent GB-1134899-A (GB)
Title: Pistons for rotary piston i.c. engines
IPC: F02B55/02
Filed: 1965-04-05
Abstract: 1,134,899. Rotary-piston I. C. engines. KARL SCHMIDT G.m.b.H. April 5, 1966 [May 8, 1965], No. 15097/66. Heading F1F. A piston 1 for a rotary-piston I. C. engine of the trochoidal n and n+1 lobe type is made of either aluminium or aluminium alloy and has a bearing portion 2 that is integral therewith and is furnished with an annular slot 4 and a pair of annular recesses 5 to minimize the flow of heat to the bearing surface, which engages with an eccentric on a poweroutput shaft (not shown). The bearing surface may have a tri-arcuate profile, as shown in Fig. 1.
Patent GB-563179-A (GB)
Title: Improvements in or connected with apparatus for controlling fluid pressure
IPC: G05D16/18
Filed: 1942-10-28
Abstract: 563,179. Pressure-regulating valves. RUTT, R. S. Oct. 28,1942, No. 15124. [Class 135] A pressure - regulating valve comprises a chamber 1 divided into upper and lower compartments 1a, 1b by a flexible diaphragm 4. .Plates 5 secured to the central portion of the diaphragm 4 are supported from the top of the box by helical springs 8. A rod 10 adjustably fixed to the plates 5 is pivoted to a control lever 12 having a portion 12a engaging a ridge 32 on the back of a flap valve 13 controlling the inlet of high-pressure fluid to the. upper chamber 1a. A spindle 14 carrying a spring-loaded safety valve 15 is carried by plates 5 and an adjustable stop 16 in the bottom of the chamber 1b coacts with the spindle to open the valve 15 to avoid-excessive pressures. The plates 5 may also carry an alarm whistle 18 having a valve 19 adapted to be opened by a stop 21, the latter being carried by a lever 22 or switch so that it can be rendered inoperative when required. The fluid inlet pipe 23 to the chamber 1a has a filter and water trap 27 and the outlet pipe 28 has a filter or gauze 30. As shown, three regulating valves settable to different outlet pressures are provided, but there may be more or less than three if desired.
Patent GB-645235-A (GB)
Title: Improvements in or relating to aerial systems
IPC: H01Q1/02
Filed: 1948-06-04
Abstract: 645,235. Automatic control systems. GENERAL ELECTRIC CO., Ltd., and STENNING, L. C. June 4, 1948, No. 15155. [Class 38 (iv)] [Also in Group XL (c)] A system for removing unwanted matter, such as snow or ice, from the surface of a parabolic reflector 1 associated with a radiating or receiving element 4 at its focus, comprises a further element 5, situated at the centre of curvature of the circular or spherical surface most nearly approximating to that of the reflector and excited to transmit energy to the reflector which energy is reflected back to the element 5 to produce an alteration in the effective impedance of the element, and means responsive to the effective impedance of the element for actuating means for removing unwanted matter from the reflector surface when the impedance differs from its normal value. An alteration in the distance of the reflecting surface from the element 5, produced by the deposition of snow or ice, causes a change in the effective impedance of the element 5 whereby the anode current of the oscillator changes to operate a relay to switch on heating means associated with the reflector. In an alternative method of detecting changes in the impedance of the element, the element is connected in a bridge circuit.
Patent GB-948056-A (GB)
Title: An improved gas pressure-reducing valve
IPC: G05D16/10
Filed: 1960-05-02
Abstract: 948,056. Valves. R. GALEAZZI. May 2, 1960 [May 2, 1959], No. 15306/60. Heading F2V. The closure member 110 of a pressure-reducing valve is urged towards an inlet 9 by a piston 5 forming part of an outlet chamber 104. Gas enters the chamber 104 from the inlet 9 through a chamber 7 and a duct formed either in the valve housing or, as shown, in the stem of the piston 5 which is adjustably loaded by springs 6, 106. The valve may be fitted on breathing apparatus and the space 4 above the piston be subjected by removal of a stopper from a hole 13 to outside, for example underwater or highaltitude, pressure. A fitter F and a relief valve S are provided.
Patent GB-349293-A (GB)
Title: Improvements in machines for coating grinding-wheels with abrasive material
IPC: B24B57/00
Filed: 1930-05-19
Abstract: 349,293. Grinding. GENERAL SPRING BUMPER CORPORATION, 2660, East Grand Boulevard, Detroit, Michigan, U.S.A. May 19, 1930, No. 15390. Convention date, Feb. 14, 1930. [Class 60.] Supplying abrading - materials. - In a machine for applying abrasive to a glue-coated grinding - wheel in the manufacture or renovation of the wheel a rolling motion is imparted to the wheel whereby it is pounded into the abrasive material. A grinding-wheel 38 is mounted on an arbor 45 supported between spring-pressed members 42 and members 40 on rocker arms 29, pivoted at one end to cranks 28, which are driven by a motor 14 through a beltpulley 19 and gearing and at 32 to rods 31. Springs 37 on a horseshoe-shaped member 36 on the rocker arms retain the wheel central. Arms 47, which may be raised by a foot-pedal 53 to insert the grinding-wheel, rest in slots 5 according to the size of the wheel and receive the lower ends of the rods 31 downward movement of the rods being limited by adjustable collars 49. The wheel is thus constrained to move through the abrasive in container 12 along a path indicated at A.
Patent GB-923251-A (GB)
Title: Improvements in calculating networks
IPC: G06G7/14
Filed: 1959-05-05
Abstract: 923,251. Valve amplifying circuits. BAILEY METERS & CONTROLS Ltd. May 5, 1959 [May 6, 1958], No. 15454/59. Class 40 (6). [Also in Group XXXVI] A circuit comprises an A.C. amplifier, a transformer having two primary windings to each of which a D.C. input can be applied and a secondary connected to the amplifier input, a chopper in each of the primary circuits, a phase-sensitive rectifier operating at the chopper frequency providing a network output of the same polarity as the D.C. input. A subtracting circuit comprises an A.C. amplifier 1 fed from a transformer 2 having two primary windings 4, 5 wound in opposition in series with inputs 7, 10, resistances 6, 9 and choppers 8, 11, the output of the amplifier being connected to a phase-sensitive rectifier 15 operated in synchronism with the choppers 8, 11 so that the D.C. output at 21 is proportional to N 1 E 1 /R1-N 2 E 2 /R 2 , where E 1 E 2  are the D.C. inputs at 7, 10, R 1 R 2  are resistors 6, 9 and N 1 N 2  are the primary turns of 4, 5 respectively. An electronic chopper may replace the mechanical chopper (Fig. 2, not shown) and, in the same embodiment, a feedback circuit, including a condenser from the output to the input terminal of one primary winding will cause the whole circuit to act as an integrator with respect to a D.C. signal applied at the input of the other primary winding. In a further embodiment (Fig. 3) a feedback resistor 91 is provided in addition to more than one input to each primary so that the output D.C. signal will correspond to: where E 82  and R 92  &c. are the D.C. inputs and resistances corresponding to input terminals 82, 83 &c. and to resistances 92, 93 &c. In a further embodiment (Fig. 4, not shown) the feedback connection to one primary winding includes a resistance capacitor network so that the whole circuit gives an output corresponding to the differential coefficient of a D.C. input to the other primary winding.
Patent GB-544712-A (GB)
Title: Improvements in or relating to apparatus for playing games
IPC: A63F9/16
Filed: 1940-10-21
Abstract: 544,712. Games ; educational appliances. MARSH, A. G. Oct. 21, 1940, No. 15501. [Classes 132 (ii) and 146 (ii)] In an apparatus for playing wordforming games or for use as an educational appliance, a number of interchanegable rotatable members 1 .. 5 carrying letters on their faces are mounted coaxially for individual rotation upon a spindle and are retained thereon by flanges 7, 8 one at least of which is readily detachable to permit the rotatable members to be interchanged or replaced. The removable flange is provided with a plug fitting into a socket in the spindle. The rotatable members may be numbered, and the letters may be variously coloured. Each rotatable member may carry two or more sets of letters. The rotatable members may be adjusted by separate knobs, or may be spun at random by spring or other suitable means.