baber/WOPTO huggingface dataset:
Patent GB-894638-A (GB)
Title: A process for the preparation of dihydrojasmone
Inventor: AMIN JAYRAMDAS HIRABHAI
IPC: C07C45/66
Filed: 1959-05-12
Abstract: Dihydrojasmone is prepared by subjecting a paraconic acid having the formula <FORM:0894638/IV (b)/1> to pyrolysis at a dicarboxylation temperature to form a mixture of a lactone of the formula <FORM:0894638/IV (b)/2> and an unsaturated acid of the formula <FORM:0894638/IV (b)/3> and cyclodehydrating the mixture by heating with a cyclodehydrating agent containing phosphoric acid thereby obtaining dihydrojasmone.  In the example, the paraconic acid is heated with KHSO4 at 250 DEG C.-270 DEG C., the resulting mixture of lactone and unsaturated acid is recovered by vacuum distillation and the mixture then converted into dihydrojasmone by heating with a mixture of phosphoric acid and P2O5 at 100 DEG C., treating the reacted mixture with ice and extracting with petroleum ether.  The paraconic acid is obtained by reacting octan-2-one with a di-alkyl ester of succinic acid, e.g. the diethyl ester, in the presence of potassium tert.-butoxide, yielding a half-ester of the general formula <FORM:0894638/IV (b)/4> which is converted into the desired paraconic acid by refluxing with an aqueous solution of hydrobromic and acetic acids.
Patent GB-439290-A (GB)
Title: Improvements in or relating to tuft-yarn spool and tube carrier frames for use in looms for weaving axminster carpets and like tufted pile fabrics
IPC: D03D39/06
Filed: 1934-06-01
Abstract: 439,290. Making parts of looms. PERRY, E. J., 68, Heath Mill Lane, Birming- ham. June 1, 1934, No. 16333. [Class 83 (ii)] [See also Group IX] A weft yarn tube frame for Axminster looms is made by soldering a number of tubes b to one end of a metal sheet a<1>, bending the latter to form a tubular bar a and soldering the edge a<5> to the heel ends of the tubes. The longitudinal joint is of shouldered form to provide a supporting guide a<6> for the yarn entering the tubes. The bar a may be built up from two or more longitudinally jointed sheets. Specification 17761/99, [Class 142], is referred to.
Patent GB-1415246-A (GB)
Title: Articulating fitting for a hinged ladder
IPC: E06C1/32
Filed: 1973-04-05
Abstract: 1415246 Lockable hinges; step ladders ZARGES LEICHTBAU GmbH and W KUMMERLIN 5 April 1973 [11 April 1972] 16339/73 Headings E1S and E2F A lockable joint for use in hinged ladders comprises two hinge parts 2, 3 which have hollow portions 6, 7 for connecting to ladder side pieces, a hinge pin 1, and a locking rod 10 which is spring-loaded to move parallel to the hinge axis through complementary holes in the hinge parts; a spring 13 acting on a guide pin 11 which slides within the hinge pin, and the rod 10 and pin 11 being linked by a portion 25 which functions as an operating handle. In the arrangement shown in Figs. 2, 4 a single locking rod 10 is provided and two sets of holes are formed in the hinge parts: one set 19, 20, 21 being used to lock the ladder in its fully extended position (Fig. 3, not shown); and the other set including an elongate hole 18 formed in one of the hinge parts to allow a limited movement between two ladder sections so that they can be used as a step ladder. Further embodiments employ two diametrically opposed locking rods, each linked to the central guide pin, and each engaging associated sets of holes in the hinge parts. The two rods may be either spaced the same distance from the hinge axis and have different cross-sectional sizes (Figs. 5-8, not shown), or have the same cross-sectional size and be spaced different distances from the hinge axis, Fig. 12, (Figs. 9, 10, not shown). Fig. 12 also shows a telescopic form of spring biassing, in which an intermediate sleeve 326 and two springs are employed, enabling the axial extent of the device to be reduced. Further intermediate sleeves and springs can be used.
Patent GB-145085-A (GB)
Title: Process for treating sal ammoniac skimmings
IPC: C22B25/06
Filed: 1920-06-17
Abstract: Flux skimmings are mixed with slaked lime, moistened, and distilled by passing live steam through at 1.5 atmospheres pressure (110 DEG C.).  Ammonia is evolved and on leaching the residue calcium chloride is removed and zinc oxide remains.ALSO:Flux skimmings are mixed with slaked lime, moistened, and distilled by passing live steam through at 1.5 atmospheres pressure (110 DEG  C.).  Ammonia is evolved, and on leaching the residue, calcium chloride is removed and zinc oxide remains.
Patent GB-451531-A (GB)
Title: Improvements in or relating to pneumatic engines for operating vehicle doors, gates or the like
IPC: E05F15/02
Filed: 1935-06-05
Abstract: 451,531. Door operating appliances. PETERS & CO., Ltd.. G. D., and CARDWELL, C. H., Windsor Works, Slough, Buckinghamshire. June 5, 1935, No. 16407. [Class 65 (i)] [See also Group XXVIII] In a double-acting pneumatic or vacuum engine for the operation of doors and the like, provided with means to cushion the motion by restricting the flow of air in a passage communicating with the cylinder, the cushioning means is actuated by means adjustable externally of the engine to vary the point in the piston stroke at which the cushioning becomes effective. The cushioning and control means for an electromagnetically-controlled vacuum engine are shown ; pipes 21, 22 connect the valves to the ends of the cylinders, passage 23 is connected to the vacuum source, and passages 25, 26 are connected to the atmosphere through needle valves (not shown) and valves such as 31 operated by cams such as 39 adjustably fixed on the rockshaft 4 by which the pistons are connected to the doors. In the position shown, with electromagnets 5, 6 de-energized, the pistons are at the left-hand end of their stroke, the vacuum passage 23 being connected to 21 by valve 11 and cut off from 22 by valve 13 while air is cut off from 21 at 11 and supplied to 22 through valve 12. When the electromagnets are energized, both valve elements are depressed, so that 22 is connected to vacuum (23) through valve 13 and 21 is connected to atmospheric passage 25 through valve 11, air entering 25 both through the needle valve and through valve 31 ; after a portion of the stroke, predetermined by the adjustment of cam 39 on rockshaft 4, this cam closes valve 31 so that air can only enter through the needle valve, which gives a restricted passage, and the movement of the engine is consequently slowed down. In the opposite movement, the valve (corresponding to 31) connected to passage 26 is closed after a time to restrict the flow of air to passage 22. In the case of engines in which the piston-rod is directly connected to the doors without the intermediary of any rotary member, the valves 31 are operated by sliding cams adjustably connected to the driving mechanism. In a compressed-air engine, the cam-operated valves may restrict either the entry of pressure air or the exhaust to the atmosphere. In a differential vacuum engine, the cushioning valves mould operate to restrict at appropriate times the connections of the vacuum source to the cylinders to allow pressure to build up in the appropriate cylinder to slow down motion. One of the electromagnets may also act as a relay, operating contacts 17, as described in Specification 438,620. Specification 442,742 also is referred to.
Patent GB-1374055-A (GB)
Title: Transfer mechanism for battery grids
IPC: B65G47/29
Filed: 1973-04-05
Abstract: 1374055 Conveying electric battery grids MAC ENG & EQUIPMENT CO 5 April 1973 [10 April 1972] 16429/73 Heading B8A Battery grids G having projecting lugs L are lifted successively from a position in which each grid rests by its lugs L on a pair of spaced conveyer chains C, to a position in which the grid rests by its lugs on flights 26 of conveyer chains 22. The invention is concerned with ensuring that the grids do not jam during the transfer operation, even though the lugs may be bent slightly from their correct positions. Examples of bent lugs L can be seen in Figs. 7-10 (not shown). The lifting of each grid is effected by notches 28, 28, on respective pivotable lifting arms P which lift the lugs along paths X (Fig. 3). The top of each lug is engaged by a stop 20 carried by an arm 20A. The latter is pivotally mounted at 20B and is urged by a spring 20C in a counter clockwise direction. An adjustable stop block 42 is mounted on the arm 20A, and with an extension surface 40 of the stop 20, forms a guide passage for the lug as it is lifted by the respective notch 28. The position of the stop block 42 is adjusted so as to prevent double feed (Fig. 6).
Patent GB-1166983-A (GB)
Title: Apparatus for Controlling the Switching of a Power Supply System
Inventor: TSUI FRANK
IPC: H02H3/033
Filed: 1968-04-05
Abstract: 1,166,983. Switching arrangements. INTERNATIONAL BUSINESS MACHINES CORP. 5 April, 1968 [7 April, 1967], No. 16438/68. Heading H2H. Apparatus for controlling the switching of a power supply having critical and non-critical voltage supply lines comprises means to ensure that when the system is switched off the non- critical supply lines are de-energized after the critical supply lines. When switching on the non-critical supply lines are energized before the critical supply lines. A supply system comprises a transformer 3 which supplies a load with a plurality of voltages some of which are "critical voltages" VC and some are "non- critical voltages" VNC. The system is energized by the simultaneous closure of switches 11, 12, 13, thereby energizing the transformer 3 and preparing an auxiliary circuit supplied by a battery 2. During normal operation a signal on line BSL closes contact 21 to condition a control circuit 8 for use. The control circuit 8 then produces a signal on line SLNC which causes a circuit 41 to reduce its resistance thereby causing a gradual rise in the non-critical voltage available at VNC. After a predetermined time delay the control circuit will produce a signal SLC which will cause a circuit 42 to operate similarly to circuit 41 so that a gradually increasing voltage will appear at VC at a period after that which appeared at VNC. The system is switched off by the simultaneous opening of switches 11, 12, 13 and this may be effected by a signal from a manually operated switch MS or, in emergencies, by signal AS1 or AS2 from supply monitor 9 or voltage monitor 5, respectively. When the switches 11, 12, 13 are opened signals AS1, AS2 are generated in any case and supplied to the control unit 8 and, since the control unit remains energized from the auxiliary supply 2 by a holding signal on line BSL, a signal CS2 is generated causing a circuit 6 to short-circuit capacitor C22 whereupon the voltage VC disappears immediately. The disappearance of the voltage VNC is, however, delayed by the discharge of a capacitor C21. After a delay the control circuit 8 generates a signal CS1 which, by way of a circuit 7 causes circuits 71, 72 to discharge smoothing capacitors C1. The holding signal on line BSL is then removed so removing the auxiliary supply 2 by opening contact 21. The variable resistance of each of the circuits 41, 42 is obtained by the variable impedance characteristic of transistors and the control unit 8 may comprise an assemblage of AND; OR and multi-vibrator units.
Patent GB-316377-A (GB)
Title: A new and improved roof for vehicles
IPC: B60J7/04
Filed: 1928-06-07
Abstract: 316,377. Temple, E. Bregeon-. June 7, 1928. Hoods.-Roofs for vehicles comprise fixed vertical or inclined sheets or blades 1 secured to a frame F and movable sheets or blades 3 hinged to the frame F and the fixed sheets so that the roof may be closed by rotating the movable sheets on to the adjacent fixed sheets. Flanges 4 are provided to engage the edges of the fixed sheets. A series of movable sheets may be simultaneously operated by a connecting-rod 6. A strip 5 of flexible material may be secured to the sheets to form a gutter.
Patent GB-594446-A (GB)
Title: Improvements in or relating to rotary internal combustion engines
IPC: F02B53/00
Filed: 1945-06-29
Abstract: 594,446. Rotary internal-combustion engines. HODGE, N. E. June 29, 1945, No. 16622. [Class 110 (ii)] A single or multi-stage compressor with rotor 7 and sliding-rocking vanes 9 supplies mixture to one or more internal-combustion engines similarly provided with rotors 8 and vanes 13. The compressed mixture is transferred from the compressor by way of ports 30, 31 and a passage 32, under control of rotary valves on the rotors. The transfer port for the compressor may be slightly longer than that of the engine. Angular dimensions for the ports are given in the Specification. The rotors 7, 8 are cup-shaped and one vane of each three is secured to its stub shaft, the other two vanes being freely-mounted on the shaft by trunnions. Explosion pockets 38 are provided in the engine rotor. For sealing purposes the bore of the compressor casing is recessed over a portion of its periphery. The vanes, which slide between segments 37, may be provided with packing bars. The rotor shafts are coupled together by chain-andsprocket gearing, the chain, preferably, being tensioned by a semi-elliptic spring. A sparking- plug, used for starting-up, may be dispensed with afterwards. firing being secured by transfer of hot gas from one pocket to another. The casing is, preferably, made of aluminium alloy, and the rotors and vanes of alloy steel. A lubricating oil pump may be driven off the compressor shaft.
Patent GB-1181602-A (GB)
Title: Improvements in or relating to Supporting Racks made of Fused Quartz Material.
IPC: C30B31/14
Filed: 1968-04-05
Abstract: 1,181,602. Cases. HERAEUS-SCHOTT QUARZSCHMELZE G.m.b.H. 5 April, 1968 [5 April, 1967], No. 16642/68. Heading B8P. A fused quartz or quartz glass storage case comprises a tube 1 with at least one flat face 2 which has one or more portions 3 removed and the cages formed with slots 5 to receive thin discs, plates, wire &c. 8. In one embodiment, Fig. 1 and Fig. 4 (not shown), two or more portions 3 are removed and the slots 5 lie in the longitudinal direction of the case. In another embodiment, Fig. 5 (not shown), only one portion (3<SP>1</SP>) is removed and the slots (5) lie transversely of the case. The underside of the tube may be a curve, Fig. 6 (not shown), or shaped as in Fig. 3. Handles 6 are attached at each end to the flat face 2. The slots (5) in cross-bars 4 and (4<SP>1</SP>) according to Fig. 1 or to Fig. 4 (not shown), may also be in the form of grooves extending over the width of the crossbar.
Patent GB-112916-A (GB)
Title: Improvements in and connected with Saw Benches.
Inventor: MIDDLETON WILLIAM
IPC: B27B7/00
Filed: 1917-11-13
Abstract: 112,916. Middleton, W., and Bristow, G. Nov. 13, 1917. Circular - saw machines. - An arrangement for converting an ordinary circular-saw bench A into a rack bench for cutting up logs comprises a pair of auxiliary benches B, C arranged one at each end of the bench A and fitted with rollers H which support a sliding table D. The table is fitted with work-bearers and is fed by a rope J passing around a drum M.
Patent GB-1278162-A (GB)
Title: Use of oxime-ethers as a synergistically acting additive to insecticidally and/or acaricidally active substances
IPC: A01N35/10
Filed: 1970-04-08
Abstract: 1278162 Pesticidal compositions comprising oxime ethers CIBA-GEIGY AG 8 April 1970 [14 April 1969] 16666/70 Heading A5E An insecticidal and/or acaricidal preparation comprises an oxime ether of formula: wherein R 1  represents an unsubstituted or substituted aromatic radical, R 2  is H, nitrile or C 1-4  alkyl, R 3  is straight chain C 1-4  alkylene and R 4  is H or halogen, together with an insecticidally and/or acaricidally active substance. A large number of suitable active substances are specified. Conventional additives or a fertilizer may also be present.
Patent GB-214130-A (GB)
Title: Improvements in and relating to electric tube welding machines
IPC: B23K11/06
Filed: 1923-06-27
Abstract: 214,130. Schr÷der, E. June 27, 1923. Welding.-In an electric tube welding machine of the type having several electrical rollers working on the same seam, the pairs of pressure rollers are connected bv a short circuit contact so that the greater portion of the current passes over this contact instead of through the tube and thus excessive heating of the tube is prevented. The electrode rollers c<1>, c<2>, c<3>. Fig. 1, are connected to the free poles of a three-phase transformer in star fashion and the upper rollers a of the pairs of pressure rollers a, b, which are preferably made of bronze or other non-magnetic metal, are connected by a short circuit contact k consisting preferably of a series of strips k<1> of copper, so that each roller may be independently adjustable. The short circuit contact may consist of a bearing-block m, Fig 4, in the form of a water trough m for cooling the pressure rollers b, the front wall of which has open bearings and the rear wall bushes d to receive the spindles of the pressure rollers b. The upper portion of the bushes and of the rear wall mav be detachable so as to facilitate removal of the rollers. Two or four electrode rollers may be used in conjunction with one or two single phase transformers, or six electrode rollers may be carried by a transformer with six free poles. The tube may be advanced uniformly and the current interrupted at regular intervals, or welding may be effected step by step, the welding points being separated so that the welding points of the following rollers fall between the welding points of the first roller.
Patent GB-1326868-A (GB)
Title: Cathode ray tube for a flying spot scanner
IPC: C09K11/77
Filed: 1972-04-11
Abstract: 1326868 Cathode ray tubes TOKYO SHIBAURA ELECTRIC CO Ltd 11 April 1972 [16 April 1971] 16679/72 Heading H1D [Also in Division C4] A C.R.T. has flourescent screen of Ce activated BaY silicate. A mixture of Y 2 O 3 , BaCO 3 , SiO 2  and CeCl 3  is heated at 1350C in a reducing atmosphere and quenched. The resulting phosphor is deposited on the C.R.T. faceplate in a suspension of H 2 O, water glass and K 2 SO 4 . An Al coating is added over the phosphor. The C.R.T. is used as a flying spot scanner in video reproducing and facimile copying apparatus.
Patent GB-1457061-A (GB)
Title: Method of heat treating steel rail
IPC: C22C38/00
Filed: 1974-04-17
Abstract: 1457061 Cooling steel rails BETHLEHEM STEEL CORP 17 April 1974 [2 May 1973] 16724/74 Headings C7A and C7N A steel rail containing in percentage by wt:- is hot-rolled above 2000F, preferably in the range 2100-2350F and is then cooled at 200-600F/min from above 1800F to a temperature in the range 700-1000F whereby there is produced a fine pearlike structure with an interlamellar spacing of less than 1500A. Preferably the steel is then cooled at a controlled rate to prevent hydrogen flaking. Suitable apparatus for mounting on the run-out table of the rolling mill includes adjustably spaced side walls 16 in which are mounted coolant nozzles 30 supplied by manifolds 32. In an example the rail is cooled by high-pressure steam.
Patent GB-265454-A (GB)
Title: Improvements in ice cream sandwich machines
IPC: A23G9/28
Filed: 1926-07-03
Abstract: 265,454. Fitzpatrick, H. D., (Leich, A., and Berner, J.). July 3, 1926. Stream-cutting machines. - A machine for making ice-cream sandwiches comprises a casing 5 in a jacketed cooling chamber, a plunger 7 acting on the block of ice-cream, a cutter 22 and actuating lever 17, a biscuit container 35 and a sliding trip device 42 for placing a biscuit beneath the cut-slice, a lever and pawl feed 11, 12 for the plunger rod 8 adapted for operation by the handle 17, and a shutter 24 adapted to be rotated in front of the ice-cream block on the upward movement of the lever 17. The plunger rod 8 is provided with two racks of different pitches and passes through a sleeve having a slot through which the pawl 12 operates. The pawl is actuated by the cutter lever 17 on its upward stroke and a roller 23<1> on the end of the guided bent lever 13 on which the pawl is carried. The cutter lever 17 also actuates the shutter 24 by means of a pin 33 adapted to engage the slotted lever 30 which is connected to a crank 28 in the shutter by a link 29. The plate 31 which carries the shutter mechanism has a cam face to guide the lever 17 over the front face of the slotted lever 30. The bush on which the shutter is pivoted is adjustably pinned to the carrying spindle. The biscuits are drawn one at a time from the open flanged bottom of the container 35 and deposited on a removable tray to receive the cut slice of ice-cream on top of which a second biscuit is placed by a second sliding movement of the trip 42. The movement of the trip 42 is limited by a pin &c. 40 and slot in the supporting base. The sandwich is taken from the movable tray, a slot being provided in the tray for the customer's finger. The jacket 2 does not extend to the side of the casing 5 to allow chilling of the ice-cream to its outer end. The cutting device is removably attached to the case, side guides being provided for the cutter.
Patent GB-638429-A (GB)
Title: Improvements in horticultural cold frames
IPC: A01G9/20
Filed: 1948-06-26
Abstract: 638,429. Horticultural frames. CALVERT, R. June 26, 1948, No. 16858/47. [Class 20 (i)] A horticultural cold frame of the kind described in Specification 554,484 in which the body of the frame is formed by compressed asbestos-cement sheets or similar material secured together by wood blocks B, Fig. 1, and bolts b, supports a sheet glass cover C in a groove formed between an angle member a and the top of the side wall or walls A as shown in Fig. 5. A similar groove may be provided along the front edge of the frame, and an inverted T-shaped guide and support c may extend from the front to the rear of the frame. Clips may be fixed to the vertical leg of the guide c to secure the glass sheets.
Patent GB-110236-A (GB)
Title: Improvements in and relating to Lamps for Heating Purposes.
Inventor: WELSHAUSEN WILLIAM
IPC: F23D3/00
Filed: 1916-11-25
Abstract: 110,236. Welshausen, W. Nov. 25, 1916. Ball and float valves; floats.-The height of the liquid fuel in the well 10 of a burner is kept constant by means of an annular float 27 carried by a pivoted arm 29 having an extension, which loosely surrounds the stem 32 of an inlet valve 33 communicating with a liquid-fuel reservoir. A screwed plug 35 is provided to permit accees to an adjustable nut 34 on the valve stem 32
Patent GB-1395707-A (GB)
Title: Superconducting device
IPC: H01F6/04
Filed: 1971-05-25
Abstract: 1395707 Superconducting devices BRITISH OXYGEN CO Ltd 23 May 1972 [25 May 1971] 16956/71 Heading F4U A superconducting device, in the form of a magnet having a winding 2 around a core 1 with radiation shields 4 and 5 located within a cryogenic casing 6, is in thermal contact with a refrigerating system 9 through a heat pipe 10. Also within the casing 6 are tubes 7 and 8 for receiving liquid helium. The working fluid in the heat pipe has a triple point above 4À5‹ K. and below the working temperature of the refrigerating system 9, e.g. liquid nitrogen, liquid argon, liquid neon or liquid hydrogen. In operation of the device, liquid helium is introduced into the bath between 7, 8, solidifying the working fluid in the heat pipe which then acts as a thermal barrier. When the superconducting device is not being used, no liquid helium is present in the bath 7, 8. A refrigerator 9 through the heat pipe, cools the tube 8, preventing the temperature of the device from rising too high in readiness for the next superconducting cycle. Instead of the refrigerator 9, a bath of liquid refrigerant, preferably the same liquid refrigerant as used in the heat pipe 10, may be disposed either adjacent the device or surrounding the casing 6.