baber/WOPTO huggingface dataset:
Patent GB-832556-A (GB)
Title: Improvements in or relating to computing devices
IPC: H03K19/16
Filed: 1957-04-26
Abstract: 832,556. Controlled non-linear inductors. SPERRY RAND CORPORATION. April 26, 1957 [May 1, 1956], No. 13378/57. Class 40 (9). [Also in Group XIX] A logical network comprises a plurality of cascaded units each having a number of inputs such as 11-14, Fig. 1, which are connected over rectifiers D1-D4 to the control winding 17 of a resetting type amplifier 15. Each amplifier normally provides an output to a load RL when the control winding is unenergized, due to the application of alternating power pulses to a power winding 16 over terminal 18 of which the positive pulses only are effective over a rectifier D5. The negative pulses constitute blocking voltages which neutralize inter-winding voltage induction; blocking pulses for the same purpose are also applied simultaneously to terminal 20 of the control winding. The first unit in a chain operates as an OR gate since pulse transmission through the power winding is interrupted each time an input pulse is applied. Due to the complementary nature of the output which constitutes an input to the second amplifier, the next unit operates as an AND gate and produces an output pulse only when " no pulse " conditions arise simultaneously at each of its inputs. Similar units constitute further stages of the cascade. A two-stage arrangement is shown in Fig. 3 in which OR units comprising amplifiers C1, C2 with individual input groups 31-33 and 36-38 control an AND unit comprising rectifiers D10, D11, and an amplifier C3. The latter unit includes an input 42 and rectifier D12 which when pulses inhibits the output from C3 and effects the logical NOT operation. The Specification discloses a binary half-adder circuit, Fig. 4b, comprising rectifiers D13-D20 and amplifiers C4-C8, the binary signals to be added being applied to terminals 45<1> and 461 while the sum and carry digits are obtained at terminals 47<1> and 48<1> respectively. The amplifier group C6-C8 and associated rectifiers comprises the OR and AND units shown in Fig. 3, amplifier C4 being an OR unit and amplifier C5 a NOT unit. The amplifiers comprising adjacent stages are energized by power pulses at different times, the amplifier groups C4, C6, C7 being energized in phase #A and the amplifier group C5, C8 in phase #B. A delay means such as a non-complementary resetting amplifier (not shown) is required in the connection between amplifiers C5 and C8. Specification 809,669 is referred to.
Patent GB-1390407-A (GB)
Title: Article identification apparatus
IPC: G06K7/10
Filed: 1972-04-21
Abstract: 1390407 Optical scanner RAC CORPORATION 21 April 1972 [30 April 1971] 13388/74 Divided out of 1390404 Heading G4M The disclosure is the same as that of parent Specification 1,390,404 and Specification 1,390,406 and Specification 1,380,405. The claims are directed to a scanning system which detects noise.
Patent GB-688440-A (GB)
Title: Hydraulic motor cylinder with stroke-limiting valve
IPC: F15B15/24
Filed: 1951-06-06
Abstract: 688,440. Hydraulic machines. BENDIX AVIATION CORPORATION. June 6, 1951 [June 19, 1950], No. 13449/51. Class 69 (ii). A hydraulic motor unit comprises a cylinder 10, cylinder heads 11, 12, a piston 20, a piston rod 21 extending through the head 11, fluid supply and exhaust passages 35, 27 in the heads 11, 12 respectively, a valve seat 38 in the passage 27 facing the cylinder end of the passage, a poppet valve 37 slidably supported in the head 12, a push rod 53 parallel to the cylinder and having an end 53a extending beyond the head 11 and an end 52 adjacent the poppet valve, and a pusher member 60 adjustably secured on the piston rod 21 for engaging the end 53a for shifting the push rod from its normal position (shown in Fig.) into an actuated position in response to inward movement of the piston rod. The unit has means responsive to movement of the push rod for seating the poppet valve and a spring 57 for restoring the push rod to its normal position in response to opening movement of the poppet valve. Fluid connections for supplying and exhausting fluid from either end of the cylinder are provided in the head 12 ; thus one connection leads to the passage 27 and the other via a passage 31 and a tube 32 to the passage 35. Fluid supplied to the passage 27 flows past the open valve 37 to move the piston outward, the fluid on the other side being exhausted through passages 35, 32, and 31. Fluid supplied in the reverse direction moves the piston inwards until the member 60 depresses the push rod 53 to move the cam-shaped end 52 to the left so that the valve 37 seats under the pressure of fluid and the spring 43, thereby preventing further inward movement of the piston.
Patent GB-467699-A (GB)
Title: A lever mechanism for effecting alternate opposite movements of a driven member
IPC: F16K31/44
Filed: 1936-05-13
Abstract: 467,699. Actuating valves. HINDS, G. A. May 13, 1936, No. 13517. [Classes 69 (iii) and 135] [Also in Groups XXIV and XXXVII] Alternate opposite movements of an actuated member are effected by a repetition of similar movements of an actuating lever. The invention is applicable in particular, to the actuation of switches and valves. As applied to the valve of a horticultural sprayer, a main lever a is pivoted on a pin b carried by a tubular part of the structure c and is loaded by a spring d. A subsidiary lever pivoted on the same pin b has two arms g, and lies inside the channelsection lever a. The arm g bears against the spindle i of the valve j to be actuated which is loaded by a spring k. A retaining device is provided in the form of an arm n pivoted at n<1> and carrying slidable spring-loaded abutments o bearing against the part m. During forward movement of the main lever a, the subsidiary lever is moved forward so that its arm g engages the valve stem i and opens the valve. At the same time a recess t in arm f comes under a pin r in arm n whereby the subsidiary lever is held with the valve open. Fig. 2. On the return movement of lever a, a spring loaded trigger v slips past the upper end of retaining arm n but, on the next forward movement of lever a, this trigger engages the arm n and, in forcing it forward, releases the subsidiary lever arm f, and the valve j moves to its closed position under spring action. The Provisional Specification describes also a construction in which the holding and releasing means comprises a toggle linkage.
Patent GB-210386-A (GB)
IPC: B64F1/20
Filed: 1923-05-22
Abstract: 210,386. Naamlooze Vennootschap MachinerieÙn-en Apparaten Fabrieken, (Assignees of Pintsch Akt.-Ges., J.). Jan. 23, 1923, [Convention date]. Buoy and like lamps; lantern shutters.-An intermittently luminous beacon for aerodromes combined with means for illuminating the landing surface is so arranged as to avoid dazzling an aviator when he is landing. The source of light a is arranged somewhat above the axis of the lens b so as to throw a beam # down on to the landing surface without reaching the eyes of the aviator. Above the beam # is a cone of darkness #, while from the top of the lamp issues a beam a intermittently interrupted by shutters c, c<1>, which are closed and opened similarly to the wings of a butterfly by crank and link mechanism operated by the cam h. Four lamps may be arranged as shown in Fig. 4 so as to mark out the landing surface l by a patch of light. In this case the lamps may be caused to flash simultaneously by controlling the supply of current.
Patent GB-1524471-A (GB)
Title: Method and apparatus for evaporating water from material
IPC: C02F11/13
Filed: 1976-04-02
Abstract: 1524471 Drying drum NITTETU CHEMICAL ENG Ltd 2 April 1976 [4 Oct 1975] 13557/76 Heading F4G An apparatus for drying a slurry or sludge with hot gas comprises a rotary drum 1 having an inlet and an outlet at opposite ends and comprises a central compartment 7 defined by a cylindrical partition 3, and at least one circumferential compartment 7, each compartment containing heat-transfer members 6, e.g. Raschig rings or sealed metal pipes (6<SP>1</SP>) Figs. 4, 5 (not shown), and the compartments being in communication with each other through partitions 2, which, as partitions 3 to (5), may be in the form of grids, wire mesh, or porous plate. The compartments may be axially partitioned at (5), and a heater (23) produces hot gas which is passed uniformly through the drum.
Patent GB-1204473-A (GB)
Title: Heat-insulating materials
Inventor: CHAPPELL JOHN JOHNSON
IPC: C04B26/12
Filed: 1967-01-10
Abstract: 1,204,473. Hot-top linings. FOSECO TRADING A.G. 21 Dec., 1967 [10 Jan., 1967; 22 March, 1967], Nos. 1374/67 and 13588/67. Heading C3N. [Also in Division D2] A heat-insulation composition comprises, in wt. per cent: synthetic fibrous refractory, 2- 50; refractory filler, 30-80; organic binder (the sole binder present), 2-10; paper pulp, wood pulp, wood flour, or sawdust, 5-30. The synthetic fibrous refractory may be aluminosilicate, glass, calcium silicate, slag wool, or mineral wool. The refractory filler is granular or powder, and may be sand, or olivine, SiO 2 , or ZrO 2  flour. The binder may be resin, e.g. phenolformaldehyde, or cereal, e.g. wheat, flour. The composition may be formed into linings for heads and hot-tops of ingot moulds and into sleeves or risers by dewatering an aqueous slurry of the ingredients, and stoving, e.g. at 175-180 C. Specification 1,204,472 is referred to.
Patent GB-475357-A (GB)
Title: Improvements in the lubrication of the bearings of speed-reduction gears
IPC: F16H57/04
Filed: 1936-05-14
Abstract: 475,357. Lubricating bearings of epicyclic gearing. BIRKIGT, M. May 14, 1936, No. 13657. Convention date, Feb. 4. [Classes 12 (i) and 12 (iii)] Relates to lubricating means for the thrust bearing of an epicyclic reduction gear in which the excess of the lubricant supplied under pressure to the thrust bearing can escape to the interior of the gear casing. According to the invention, throttling means is fitted between the lubricant chamber of the thrust bearing and the interior of the gear casing so that an excess pressure prevails in the bearing. As shown, a shaft 2 drives a shaft 7 through a rotary gear 1 and pinions 5 mounted on a spider 25 fixed to the shaft 7. The pinions 5 gear also with a fixed gear 3. Thrust rings 18, 19, are fitted between collars 8, 9, carried by the shaft 7 and rings 14, 15, having a spherical engagement with the gears 1, 3. Lubricant is supplied by a pump 26 to annular oil chambers 12, 13, at the thrust bearings through passages 27, 10, 11. To enable an oil pressure to be built up in the chambers 12, 13, throttling members such as rings 22, 23, are inserted between the rings 20, 21, and the adjacent faces of the rings 14, 15 and gear 3, the clearance between the rings 22, 23 and the members 14, 15, 3, being very small. The bearing rings 18, 19, may be of steel, faced with antifriction material, and provided with oil grooves closed at their outer ends. The thrust bearings may be of the ball or roller type.
Patent GB-1181695-A (GB)
Title: Optical Devices comprising Silicon Carbide
IPC: G02F1/015
Filed: 1967-03-23
Abstract: 1,181,695. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 23 March, 1967 [29 March, 1966], No. 13667/67. Heading H1K. A semi-conductor optical device comprises a silicon carbide body including a region which contains only chromium as the conductivitytype determining impurity. It is stated that such a region has P-type conductivity, and is transparent to light throughout the visible region. In the photo-voltaic cell shown the P and N-type regions 1, 2 of a SiC body contain chromium and nitrogen, respectively, as dopants, both in concentrations of 10<SP>19</SP> cm.<SP>-3</SP>. Both regions are 1 mm. thick, the chromium dopant being introduced by alloying or diffusion. Alternatively the chromium-doped SiC can be crystallized from a solution in chromium or chromium alloys. The contacts 4, 5 are of Au containing Ta and Al and of Au containing Ta, respectively, both being fused on to the SiC body, and both having a Pt wire 5, 7 attached thereto. A similar but differently dimensioned device may be used as an electroluminescent diode, and the invention may also be applied to photo-resistances. Al-doped SiC is stated to be known.
Patent GB-102366-A (GB)
Title: Improvements in and relating to Fastening Devices for Straps, Bands, or the like.
Inventor: FRANCE ARTHUR GRAHAM
IPC: A44B11/04
Filed: 1916-09-27
Abstract: 102,366. France, A. G. Sept. 27, 1916. Slides, belt and like.-A one-piece buckle, adapted to be adjustably attached to a puttee strap without sewing, comprises free-ended outer bars d, e and inner bars a, b, c, one or more of such inner bars being displaced from the plane of the buckle. In the form shown in Figs. 4 and 6, the centre bar a is displaced to one side, and the bars b, c to the opposite side; while, in the form shown in Figs. 9 and 12, only the centre bar is displaced. The inner bars are close together, while the outer bars d, e are separated from the bars b, c respectively by a distance equal at least to a double thickness of the strap. The buckle may be curved, Figs. 9 and 12, and the extremities of the freeended bars bent upwardly as shown at f, g. To attach the buckle, the strap is passed under the bar b, over the bar a, and down under the bar c; the free end h of the strap is secured by being passed up between the bars d, b and then down. between the bars c, e, as shown in Fig. 4, whereupon it may be folded over the bar e and passed down under the bar d. Specification 17734/15 is referred to.
Patent GB-1306439-A (GB)
Title: Oxalate esters and chemical lighting system containing same
IPC: C09K11/07
Filed: 1970-04-01
Abstract: 1306439 Bis-(phenyl)oxalate esters AMERICAN CYANAMID CO 1 April 1970 [16 July 1969] 13742/70 Addition to 1163436 Heading C2C [Also in Division C4] The invention comprises a bis-(phenyl)- oxalate ester of the formula wherein X is an electronegative substituent, Y is a carbalkoxy group, Z is H or a non-electronegative substituent, and m, n and q are integers such that the combined Hammett sigma constant value of the X, Y and Z substituents on each phenyl group is from 1À4 to 2À7, each of m and n being at least one. They may be obtained by reacting an appropriate salicylate ester with oxalyl chloride in the presence of triethylamine in benzene. Examples are given which illustrate the preparation of the compounds. They are useful in the production of chemiluminescent light. n - Butyl and n - pentyl esters of 3,5,6- trichlorosalicylic acid are obtained by simple esterification of the free acid with butanol and pentanol respectively in the presence of cone. H 2 SO 4 . n-Butyl ester of 2,6-dichloro-3-hydroxybenzoate is obtained in a similar manner. 3,5,6-Trichlorosalicylic acid is obtained by chlorinating 3,5-dichlorosalicylic acid with Cl 2  in the presence of I 2  and fuming H 2 SO 4 .
Patent GB-277910-A (GB)
Title: Improvements in pulverized coal furnaces
IPC: F23J1/00
Filed: 1927-05-24
Abstract: 277,910. Soc. d'ElectricitÚ de la Region de Valenciennes-Anzin. March 26, 1927, [Convention date]. Pulverulent - fuel burners.-A burner for pulverulent fuel comprises a divergent truncated conical pipe h having an internal convergent truncated cone h<1>.
Patent GB-1323501-A (GB)
Title: Indexing mechanism for causing stepwise movement of a member
IPC: F16H31/00
Filed: 1971-05-10
Abstract: 1323501 Ratchet gearing; clutch-brake combinations NATIONAL CASH REGISTER CO 10 May 1971 [5 June 1970] 13974/71 Headings F2L and F2Q In a ratchet gear for stepping a strip of material wherein a cam 25 fast with a driving shaft 27 oscillates an arm 24 fast with one element of a roller ratchet clutch 23 which rotates a driven shaft 20 in one direction through an angular distance greater than the desired step, means are provided to rotate the shaft 20 reversely until a spring pawl 42 engages a tooth 41 of a ratchet wheel 40 on the shaft 20. As shown the shaft 20 is driven reversely through a slip clutch 29 and torsion spring 43. The drive may be disconnected by energizing an electromagnet 30 to hold a cam follower 28 fast with the arm 24 away from the cam 25. The shaft 20 carries a wheel 21 which drives the strip of material. In Fig. 2 (not shown) the shaft (20) is biased reversely by a slip clutch (29) driven reversely from the shaft (27) through a cam (47) and arm (46).
Patent GB-746670-A (GB)
Title: Improvements in or relating to hot fuel engine priming system
IPC: F02N19/04
Filed: 1953-05-19
Abstract: 746,670. Starting prime-movers. UNITED AIRCRAFT CORPORATION. May 19, 1953 [May 26, 1952], No. 14013/53. Class 38 (4). [Also in Group XXVII] A hot fuel priming system (see also Group XXVII) includes a heater in the fuel supply line having heating means therein, an engine starter, temperature sensitive means responsive to the fuel temperature in the heater and/or the ambient air temperature and means responsive to the temperature sensitive means for discontinuing a supply of energy to the heating means and for energizing the starter. In the aircraft installation shown a pipe 34 leads to a fuel heater 36 from which the fuel can be supplied to a nozzle 40 under control of a solenoid-operated valve 47. Associated with the heater is a thermosensitive device 42. The engine may be turned by closing a starter switch 56. The priming system is then energized for a cold start by first closing a primer switch 54 and subsequently the starter switch 56. When the switch 54 is closed a normally closed switch 90 is opened so that on closing the starter switch will not have any immediate effect on the starter. The circuit 94 controlled by the switch 54 extends to the contacts 681, 701 and when contacts 68, 68<SP>1</SP> are closed a solenoid 104 is energized through a normally closed switch 102 and the heater 36 is switched on. At a selected temperature the contacts 68, 681 are opened and the contacts 70, 70<SP>1</SP> and 72, 721 are closed. When contacts 70, 70<SP>1</SP> are brought into engagement electrical connection from the circuit 94 is extended through leads 116 and 48 from the contact 70 through the solenoid 62 for the valve 47 and thence to ground 118, thereby opening the outlet pipe 38 for the admission of hot fuel to the engine at the same time contacts 72, 72<SP>1</SP> engage and complete a circuit through leads 120 which form a by-pass around the now open switch 90 so that the engine starter is energized. When the starter is in operation the switch 102 is opened by a solenoid 122 thus preventing energization of the heater when contacts 68, 68<SP>1</SP> close under the effect of cold fuel arriving at the heater. If enough power is available the solenoid 122 and associated connections may be omitted. A holding circuit for the solenoid 62 comprises a switch 126 which when closed stays energized. The switch 126 also energizes a solenoid 132 which closes a switch 130 to keep the starter circuit energized. The contacts 68<SP>1</SP>, 70<SP>1</SP>, 72<SP>1</SP> are controlled by a bimetallic strip 64 subjected to fuel temperature and the contacts 68, 70, 72, by a bimetallic strip 66 subjected to ambient temperature. When the ambient temperature is low the priming fuel temperature is higher. In Fig. 2, 42a represents the thermostatic control box 42 and 44a the control relay box 44. In Fig. 1 the starter solenoid is indicated at 49.
Patent GB-653763-A (GB)
Title: Improvements in and relating to brakes for hoisting apparatus
IPC: F16D65/80
Filed: 1948-05-25
Abstract: 653,763. Drum brake cooling systems. NATIONAL SUPPLY EXPORT CORPORATION, and OIL WELL ENGINEERING CO., Ltd. May 25, 1948, No. 14097. Convention date, Oct. 17, 1947. [Class 103 (i)] The shaft 114 of a hoist drum is hollow so as to provide therein a space for coaxial passages 158, 162 for the flow of cooling water to and from the annular jackets 141, 142 for the two brake rims 119, 120. The cooling water enters from the right-hand end of tube 158, passes by passage 153 and pipe 145 to jacket 142, returns by pipe 246 and passage 152 to the outer coaxial passage 162, passes by passage 147 and pipe 143 to jacket 141 and returns by pipe 144 and passage 148 to leave the brake by outlet channel 155. The tube 158 is made of a good conductor in order that the water leaving the jacket 142 may be cooled by this water entering same.
Patent GB-437097-A (GB)
Title: Improvements in or relating to boiler furnaces
IPC: F23M5/08
Filed: 1935-05-14
Abstract: 437,097. Furnace walls and floors. INTERNATIONAL COMBUSTION, Ltd., Aldwych House, Aldwych, London.-(Combustion Engineering Co., Inc.; 200, Madison Avenue, New York, U.S.A.) May 14, 1935, No. 14137. [Class 51 (i)] The combustion chamber of a pulverulent fuel boiler furnace has walls formed by sets of upright water tubes supported at their upper portions with freedom for downward expansion and a slag retaining bottom supported from the said tubes. The tubes 10 at each side of the combustion chamber are connected at the bottom with headers 11, Fig. 1, and at the top with headers 12 and 13 alternately. Tubes 15 of the front wall 14 are connected with a lower header 16 and with upper headers 17 and 18 alternately. The tubes 20 of the rear wall extend between a mud drum 21 and a steam and water drum 22. The side walls are suspended by means of plates 35, Fig. 4, secured to the headers 12 and resting on the structural work 33 and by blocks 36 between headers 13 and a set of tubes 37 which lead steam from the side walls to the drum 22. Similarly, the front wall is suspended by means of a plate 38 and a block 39. The drum 21 is suspended by means of the tubes 41 of a connection bank C from the drum 22 which is directly suspended from the structural work by straps 34. The bottom comprises a plurality of water tubes 25 extending between the drum 21 and the lower header 16 and having horizontal fins 26, Fig. 2, forming a substantially continuous metallic surface. Filler blocks 27 are provided between the end tubes and the side walls. A metallic plate 28 is preferably provided beneath the tubes. Additional support for the bottom is obtained by light I-beams 42 resting at their ends on the lower headers 11 of the side walls. Expansion of the bottom tubes 25 is allowed for by the provision of a yieldable sealing plate 23<e>, Fig. 9, a flexible packing 23f, a flexible backing 23<b> for the front tubes, and a supporting plate 23<d>, the two latter being suspended from the structural work by rods 23<c>. In one form, the fins 26 are omitted from the middle portion of the floor and the tubes are bent to form an ash discharge opening 29. The tubes at the sides of the opening have vertical fins 30, Fig. 2, forming a slag retaining ledge which is completed by filler blocks 30<a>. During operation, slag continually drips from the opening into a water tank 46 from which it is removed by a conveyer. In a modification, Fig. 8, a slag discharge opening 45 is formed by bending the tubes 10 of a side wall, two of the tubes being bent rearwardly and connected to a separate header 11<a>. In this form an optional floor lining of ordinary refractory material 49 and a cupshaped layer of dolomite or similar material 50 is shown. In a modified form of wall construction the wall is supported intermediate its top and bottom. The upper and lower sections 56 and 53 respectively, Fig. 11, are each connected alternately to two headers 54, 55 which are welded together and supported by a girder 58 of the structural work.