baber/WOPTO huggingface dataset:
Patent GB-866197-A (GB)
Title: Improvements in and relating to jib cranes
IPC: B66C23/20
Filed: 1957-06-05
Abstract: 866,197. Load-handling machines. LUDOWICI, J. W. June 5, 1957 [June 5, 1956], No. 17942/57. Class 78 (3). An articulated jib 7, 8, is supported by a turn-table 9 provided with articulated legs 2-6 which are individually adjustable by hydraulic rams 15 to vary the position of the jib or to walk the device to a new location. The inclination of jib sections 7 and 8 is adjustable by hydraulic or screw jacks 17, 19, or by a system of chains and sprockets (not shown) driven by an electric motor through a worm mechanism and provided with means for selectively locking the sprockets against rotation to produce level luffing and other movements of the loadengaging tongs 12. The operator sits in a cabin 19a and controls the device through a model, the moving parts of which are connected through an electrical or hydraulic system (not shown) to the corresponding members of the device. In a modification (not shown) the rams 15 are replaced by screw or worm mechanisms.
Patent GB-202621-A (GB)
Title: Improvement in knitting mechanisms and methods of knitting gores and the like
IPC: D04B9/20
Filed: 1923-07-11
Abstract: 202,621. Hemphill Co., (Assignees of Jones, F. E.). Aug. 17, 1922, [Convention date]. Circular machines; ; straight-bar machines; webholders; knitting, methods of.-Relates to a method of knitting gores and to apparatus therefor, for use in connection with bearded needle machines, whereby the formation of eyelet holes is avoided or minimized. The yarn 17 is laid directly against the needle stems, without the aid of sinkers. The upper ribs 22 of the web holders are rather shallower than usual to aid in preventing slack from gathering in that part of the yarn which wraps round the stems of the first two needles of the column of inactive needles. The web holders are withdrawn at this point to bring the ends of the nibs 22 level with the outer face of the needle shanks. This prevents the web holders in front of the inactive needles from trapping the yarn while allowing the yarn to get below the nibs 22 of the web holders co-operating with the active needles. Individual rocking pressers 18 are preferably employed and their actuating cams are mounted on the web holder cam ring 32. Specification 20101/09 is referred to.
Patent GB-530181-A (GB)
Title: Means for indirectly forced commutation of static current converters
IPC: H02M7/00
Filed: 1939-06-20
Abstract: 530,181. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. June 20, 1939, No. 17956. Convention date, June 20, 1938. [Class 38 (ii)] In converters having one or more transition anodes 3, Fig. 1, fed from a commutating condenser 7 and transformer 5, the connection between the condenser and the transformer winding fed thereby contains a valve by means of which this connection can be interrupted at appropriate times. As shown the condenser is connected at one side to the mid point of the transformer winding 6, and at the other side to the two ends of the winding through two oppositely directed valves 8, 9, so that the upper and lower halves of the winding will be alternately traversed by current. For Initially loading the condenser, a voltage source 10 in series with a resistance and a separate valve 11, which may be in the same envelope as the valve 9, is used. The commutator condenser may be divided into two or more units which may be put in circuit one by one or in combination. Each unit is connected to the transformer across oppositely directed valve paths, one of which may be in the envelope of the main discharge tube; and the transformer may have a D.C. magnetization opposite to the variable magnetization due to the commutating current impulses. Fig. 4 shows the invention applied to a two-way single-phase converter arranged for the passage of energy alternatively in both directions between the two networks. For direction of energy from the D.C. terminals 40 to the A.C. terminals 41, the main anodes 42, 43, 44, 45 and for opposite energy direction the main anodes 46, 47, 48, 49 are operative. The connection is such as to be able to operate in short circuit during certain parts of a cycle, whereby a stepped curve is obtained on the A.C. side. The blocking valve 58 connects the commutating condenser 60 to the transformer winding 56 feeding the transition anodes 52, 53 and the transition anodes 50, 51 are directly connected to the condenser. The arrangement shows two auxiliary valve paths 59. 62 series connected with the inductances 61, 63 for creating an oscillatory load on the commutating condenser ; and a parallel condenser 64 on the D.C. side.
Patent GB-1220841-A (GB)
Title: Improvements in or relating to valve operating mechanism for fluid pressure control systems
Inventor: BAINBRIDGE WILFRED NICHOLAS
IPC: F16K35/00
Filed: 1968-04-16
Abstract: 1,220,841. Valves; linkwork. AUTOMOTIVE PRODUCTS CO. Ltd. 25 March, 1969 [16 April, 1968], No. 17958/68. Headings F2K and F2V. An actuator valve 14 for operating the flaps of an aircraft has an operating lever 9 movable about a pivot 21 by a lever 11, and linked to the valve at a point 13 spaced from the pivot 21 and the point of application of the lever 11, the pivot 21 being normally held in position in an eyemember 18 by a plunger 16 which can yield under excess load, e.g. if the valve 14 jams, and permit the lever 9 to pivot freely about the point 13. Plunger 16 is loaded to maintain the pivot 21 in the base of a V-shaped slot in the member 18, by a light spring 22, and fluid under pressure from an accumulator 27 passing into a recess 26, and passages 24, 25 to the end of the plunger. Upon overloading, plunger 16 is moved backwards to cut off the pressure fluid, and connect the end of the plunger to drain, the plunger being held back by the pressure fluid to allow pivot 21 to move freely with a support 12 in the eye member 18. A pressure gauge 31, or a pressure sensitive switch can be connected to the space 24, to indicate yielding of the plunger. In Fig. 2,.not shown, the lever (35) is pivoted on a block (39) kept in position by two plungers (43), and (44), and a further isolating valve (58) maintains an actuator valve (38) connected to pressure and drain as long as the plunger (43) is pressurized. In Figs. 3a and 3b, not shown, a double acting fluid-pressure actuator (65) is controlled by two pairs of actuator valves (73), (74), (75) and (76) operated by levers (78), (79), (85), (83) respectively, in response to rocking movement of a lever (85) and each maintained in position by a plunger (92). The system also includes isolating valves (94) and by-pass valves (99).
Patent GB-436438-A (GB)
Title: Trucks for use in the assembly, or furnishing, of a motor-vehicle body
IPC: B62D21/04
Filed: 1935-06-22
Abstract: 436,438. Railway trucks. ROVER CO., Ltd., and POPPE, O., Helen Street, Coventry. June 22, 1935, No. 17990. [Class 103 (iv)] A truck of the kind employed in the assembly and finishing of motor-vehicle bodies, being advanced slowly along a track during successive operations, comprises a hollow, preferably cylindrical, longitudinal beam 12 having considerable torsional rigidity, and two or more sets of spaced arms 13 projecting on each side of and rigidly secured to the central beam. The arms 13 may, as shown, be formed of channel section and be united to the central beam by plates 16, which are welded to the central beam and either bolted or welded to the arms 13. Both end arms may be secured to caster brackets 22, or, as shown in Fig. 3, one end arm may be pivotally or rigidly connected by the plates 16 to a crossbar 26 supported on casters 21, thus providing a three-point suspension. Pillars 24 may be erected at suitable points for supporting the wheel arches or like parts of the vehicle body.
Patent GB-1100208-A (GB)
Title: Electrically heated continuous-flow heater
IPC: F24H1/10
Filed: 1965-04-29
Abstract: 1,100,208. Electric continuous flow heaters. A. ECKERFELD. 29 April, 1965, No. 18149/65. Heading H5H. An electric continuous flow water heater comprises a synthetic plastics material block 1 containing straight ducts 2, 21, 3, 31 interconnected by transverse ducts 4, 5 and by a recess 7 closed by a header 10 containing an inlet and outlet 8, 9, the ducts 3, 3<SP>1</SP> containing heating coils 15. The ducts 3, 3<SP>1</SP> have glass liners 14, 14<SP>1</SP>. A pressure actuated diaphragm switch 20 connected to the ducts through holes 21, 21<SP>1</SP> controls the electric supply to the heating coils. The flow rate can be adjusted by a screw 19 projecting into duct 2.
Patent GB-181579-A (GB)
Abstract: 181,579. Boulitte, G. C. May 17, 1921. Suspensions.-A means for attaching the filaments of a galvanometer, oscillograph, or other apparatus to a support or holder consists of a holder a, a bead of soft metal or alloy b soldered to the support or holder a, and furnished with a groove b<1> into which the filament c is inserted and which is closed by compressing the bead so as to secure the filament. The support may be a single rod, but is preferably a channelled strip of metal such as copper.
Patent GB-334629-A (GB)
Title: Process and apparatus for producing acid proof etching grounds on printing plates
IPC: G03F7/40
Filed: 1929-06-13
Abstract: 334,629. Axthelm, A. June 13, 1929. Etching.-In the preparation of an etched printing-plate, the design on the plate is coated with resin or other suitable resist powder and the plate is then exposed to the action of a vapour from which liquid is precipitated to convert the powder into a smooth layer. One form of apparatus for treating the plates comprises a casing 2, Fig. 2, consisting of a fixed lower portion on a frame 1 and two upper hinged portions, the top portion being provided with a glass cover 3. Side plates 4 carried bv the top portion close the sides of the casing when the upper portions are raised. The bottom of the casing consists of a trough 7 into which alcohol or other solvent of the resist powder is passed from a container 8 and the evaporation of the solvent may be assisted by electric heaters 11. A fan 19 is arranged above the trough and operated by a handle 14 through bevel gearing 16, 18. In another form of apparatus, Fig. 7, the casing consists of a hood 20 provided with an opening 25 through which can slide, on a guide 24, a plate support 27 consisting of wire gauze mounted in a frame. A plate 29 on the support 27 closes the opening 25 when the plate is within the casing.
Patent GB-1210485-A (GB)
Title: Improvements in or relating to mountings for knitting instruments
Inventor: LIEBRANDT KARL
IPC: D04B27/06
Filed: 1969-04-09
Abstract: 1,210,485. Knitting machines. K. LIEBRANDT. 9 April, 1969 [9 April, 1968], No. 18271/69. Heading D1C. A mounting arrangement for securing the needles of a warp machine comprises a block 4 having vertical grooves 5 in which the shanks 2 of the needles are accommodated the needles being held in the grooves by a cover 8 and restrained from moving vertically by these being provided a horizontal slot 6 in the blook 4 which co-operates with slots 3 in the shank of the needles and within which a key 7 slides to retain the needles in the block. The loom ends of the needle shanks may be tapered to facilitate removal of the needles.
Patent GB-700720-A (GB)
Title: Improvements in and relating to thiosemicarbazones of pyridine aldehydes
IPC: C07D213/53
Filed: 1951-08-02
Abstract: The invention comprises the thiosemicarbazones of pyridine-3-aldehyde and pyridine-4-aldehyde, and their preparation by reacting the aldehyde with thiosemicarbazide or the thiosemicarbazone of a ketone, or by converting the aldehyde to the corresponding hydrazone and reacting the hydrazone with a salt of thiocyanic acid.  In examples, (1) pyridine-3-aldehyde is condensed with thiosemicarbazide in water; (2) pyridine-3-aldehyde is reacted with acetone thiosemicarbazone in dilute acetic acid; and (3) pyridine-4-aldehyde is added to hydrazine hydrate in alcohol and the pyridine-4-aldehyde hydrazone formed is reacted with ammonium thiocyanate in alcohol to yield pyridine-4-aldehyde thiosemicarbazone.
Patent GB-625798-A (GB)
Title: Louver mechanism for attic ventilation
IPC: F24F13/15
Filed: 1947-07-10
Abstract: 625,798. Ventilators. MADER, E. A., and SPARGO, J. July 10, 1947, No. 18319. Convention date, May 20, 1940. [Class 137] [Also in Group XXI] Louvres 2 spanning an opening for the upflow of air are actuated in unison by a link bar 7 connected to the free ends of the louvres by brackets 8, the other ends being pivoted on rods 3 journalled on opposite sides of the opening frame 1. A rock shaft 9 of inverted V shape is also pivoted on opposite sides of the frame above the link bar in its raised position and connected to it through a plate 12 fixed to the apex of the shaft and a link 11, plate 12 also being connected through a fusible link 13 to a spring 14 anchored at its other end to a post 15 so that the pull of the spring is applied upwardly to the closed louvres. The spring tension which may be adjusted by means of a nut 17 on the securing bolt 16 is arranged so to balance the louvres as to allow of their opening under a moderate air pressure. In one modification, an inverted L-shaped member replaces plate 12 and has a weighted upper arm and a lower arm normally maintained by the spring out of alignment with a link connecting it with the link bar but caused to align with it on severance of the fusible link, the louvres which then fall under their own weight thus being locked. In another, the link bar is suspended from a cable passing over a pulley mounted near the free end of an arm pivoted to a post at the end of the frame to a spring anchored to the post, the arm itself being supported from the post by a spring connected through a fusible link to the free end of the arm. This carries a short downward projection which, when the link fuses and the arm falls, seats itself on a louvre and secures it against opening. '
Patent GB-721194-A (GB)
Title: Improvements in and relating to the production of films
Inventor: BASHFORD LESLIE ARTHUR
Filed: 1950-07-24
Abstract: The process of the parent Specification for the production of threads of cellulose acetate by extruding a solution of cellulose acetate through a jet into an aqueous coagulant bath containing potassium acetate in a concentration of from 20 per cent by weight up to saturation point, is modified in that the solution of cellulose acetate is extruded through a slit instead of a jet with the production of films instead of threads of cellulose acetate. The coagulant bath preferably contains free acetic acid, particularly within a concentration of 50-250 grams per litre. The cellulose acetate solution may be prepared by dissolving dry cellulose acetate in acetone or acetic acid, but preferably the solution is prepared by acetylating cellulose in the normal way, ripening the acetate, and neutralizing the acid catalyst.  In the example a solution of cellulose acetate in aqueous acetic acid prepared as in example 1 of the parent Specification is extruded at 30 DEG  C. through a slit jet into an aqueous coagulant bath at 33-35 DEG  C. containing 40 per cent of potassium acetate and 120 grams acetic acid per litre to form a film which is washed with water and dried at 30 DEG  C.  The film is clear whereas a sodium acetate coagulant bath gives a white opaque film.
Patent GB-972839-A (GB)
Title: Tunnel diode for very high frequencies
IPC: H01L29/88
Filed: 1961-05-19
Abstract: 972,839. Tunnel diodes. STANDARD TELEPHONES & CABLES Ltd. May 19, 1961 [May 25, 1960], No. 18464/61. Heading H1K. A tunnel diode is made by forming a low resistivity layer at the surface of a semiconductor body and then forming by alloying a low resistivity region of opposite conductivity type to the layer extending through it to the main body. In an example, a P-type layer 2 (Fig. 2) is formed by alloying indium-gallium alloy to an N-type germanium wafer, etching away excess alloying material and then alloying a tin-arsenic pellet 3 through the layer to form an N-type region forming a tunnel junction with the layer to which a ring ohmic contact 7 is attached. Alternatively, the body is P type, layer 2 is formed as above, and the N-type region by alloying a pellet consisting of 73.1% by weight gold, 24.4% antimony and 2.5% arsenic to the layer. In another method, an N-type germanium body is heated at 800‹ C. for 4 hours in the presence of arsenic or phosphorus to form a low resistivity layer, and the P region extending through it is formed by alloying a pellet of indium containing 0.5% of gallium to the layer. A further alternative is to form the layer by epitaxial deposition from a mixture of germanium and phosphorus chlorides.
Patent GB-377396-A (GB)
Title: An improvement in chicken rearing appliances
IPC: A01K31/19
Filed: 1931-06-26
Abstract: 377,396. Rearing-appliances. HUDSON, G. T., Ardenville, Pickford Green, Allesley, near Coventry. June 26, 1931, No. 18497. [Class 5 (ii).] A rearing-appliance with a wire mesh or other perforated floor B comprises a lamp or other heating apparatus mounted on a withdrawable tray (not shown) and a withdrawable droppings tray C mounted above the heater and below the floor B and having an opening E to allow heat from the heater to pass into the body of the appliance.
Patent GB-1461054-A (GB)
Title: Dual source hydraulic steering system
IPC: B62D5/32
Filed: 1975-05-02
Abstract: 1461054 Power steering systems CATERPILLAR TRACTOR CO 2 May 1975 [9 Sept 1974] 18529/75 Heading B7H A dual-source fluid supply system for an hydraulic circuit of a power steering system comprises two pumps 26, 27 driven independently by the vehicle motor and a vehicle wheel, respectively, check valves 33, 34 preventing crossflow between the pumps, a steering control valve 37 normally supplied with fluid by both pumps, and an inlet relief valve 38 connected between the fluid supply and the inlet of the steering control valve and controlled by a signal on line 46 connected to the outlet of the steering control valve. In the event of the vehicle motor stopping, the pump 27 continues to deliver fluid to the steering control valve to assist steering. In a modification, the pump 27 comprises a variable displacement pump or by two pumps in parallel to increase fluid delivery at lower speeds of the vehicle. In the latter case, a cut-out valve diverts the output of one pump to the drain 28 when the fluid pressure reaches a predetermined value. In another arrangement, a second inlet relief valve circuit is provided whereby the two inlet relief valves separately monitor the pressure in the two fluid supply circuits.
Patent GB-421734-A (GB)
Title: Improvements in or relating to electric generators for arc welding and to the control thereof
IPC: B23K9/073
Filed: 1933-06-29
Abstract: 421,734. Exciting dynamo - electric machines. HOLMES & CO., Ltd., J. H., North Drive, and FENWICK, A. C., 3, South Drive, both in Hebburn-on-Tyne. June 29, 1933, No. 18547. [Class 35] A shunt wound welding generator with a series resistance has an auxiliary field winding connected across the electrodes and assisting the main winding. In the form shown, the winding G is in parallel with the electrodes and aids the winding B, but these windings may be opposed by the winding H connected in parallel with the series resistance D.
Patent GB-629340-A (GB)
Title: Improvements in or relating to dolls' furniture
IPC: B29C47/00
Filed: 1947-07-11
Abstract: 629,340. Toy furniture. NIEBOER, H. A. July 11, 1947, No. 18547. Addition to 614,195. [Class 132 (iii)] [Also in Group XXII] Dolls' furniture as claimed in the parent Specification is modified by substituting aluminium or aluminium alloy for polythene. Toy tables, beds &c. comprise cut lengths of different extruded sections alone or in combination with sections of the same or different materials.
Patent GB-1437285-A (GB)
Title: Internal combustion engine
IPC: F01L1/18
Filed: 1974-04-29
Abstract: 1437285 Cam followers FORD MOTOR CO Ltd 29 April 1974 [15 May 1973] 18588/74 Heading F2K [Also in Division F1] An I.C. engine comprises a poppet valve having a stem reciprocably mounted in the cylinder head, a fulcrum member mounted to the cylinder head, a rocker arm connected at one end to the fulcrum member and engageable at the other end with the poppet valve, and a cam-shaft engageable with the rocker arm between the two ends, oil passing from an outlet in the fulcrum member to an inlet in the rocker arm and thence via a passage in the rocker arm to an outlet adjacent the cam-shaft. Oil under pressure passes via a duct 35, Fig. 1, to a fulcrum member, e.g. which may be a threaded stud, or as shown, an hydraulic lash adjuster, and thence via an outlet 33 in the spherical end 31 of the fulcrum member and an inlet 49 in the socket 39 of the rocker arm 37 to a passage 53 within the rocker arm. The passage 53 terminates in an enlarged portion forming a reservoir 55, from which the oil is discharged through an outlet 51 immediately beneath the engaged portion of the cam surface 45. A check valve may be provided to prevent oil from siphoning back from the rocker arm to the fulcrum member when the engine is stationary. The inlet 49 is sufficiently high in relation to the reservoir 55 to ensure that the latter retains a substantial quantity of oil when the engine is stationary. When the engine is re-started, oil in the reservoir 55 is immediately splashed or vibrated through the outlet 51 to provide immediate lubrication of the engaging surfaces of the cam and rocker arm before the oil begins to be pumped. The rocker arm 37 is a casting with a plug 57 to close the reservoir 55. The rocker arm may instead be formed from a pair of channelsection stampings 61, 63, Figs. 3 and 4, welded together, the space between the stamping defining a passage 79 which connects the inlet 62 to the outlet 77 and acts also as a reservoir.
Patent GB-1465824-A (GB)
Title: Current limiting device
IPC: H01H37/76
Filed: 1974-04-29
Abstract: 1465824 Fusible current limiters GENERAL ELECTRIC CO 29 April 1974 [30 April 1973] 18726/74 Heading H2G A current limiting device comprises columns of an electrically conductive vapourizable metal 27 supported in channels intermediate the periphery of an alumina inset 23 and the inner wall of an alumina liner 13 and providing electrical connection between terminals 21 insulatively mounted by end caps (not shown) completing the housing 11. The channels may be part circular in cross-section having a diameter to length ratio of approximately 3. Their cross-sectional area may be constant along their length (Figs. 2 and 2A, not shown), or vary from a maximum in the centre to a minimum at the ends (Fig. 3, not shown). Other channel cross-sections may be used and be formed in the inner wall of the liner 13 to co-operate with a smooth or complementarily grooved insert 23. The channels may spiral along the length of the insert to increase their effective lengths. The liner 13 may be prestressed to better withstand the vapourization pressure and this may be accomplished by imparting complementary tapers to the liner 13 and housing 11. In one terminal an expansion chamber is provided incorporating a movable piston 31.