baber/WOPTO huggingface dataset:
Patent GB-849173-A (GB)
Title: Light shielding apparatus for detectors of pin holes in moving strip
Inventor: CAMP JAMES BLOISE
IPC: G01N21/894
Filed: 1958-09-23
Abstract: 849,173. Pin hole detectors. UNITED STATES STEEL CORPORATION. Sept. 23, 1958, No 30410/58. Class 40(3) In apparatus for shielding from light the edges of a strip passing between a light source and a light detection chamber e.g. a pin hole detector, the strip guide mechanism is urged into close contact with the edges of the strip and each edge of the strip passes through a light absorbing chamber. In Fig. 1 light from the source 2 is directed on the top surface of the strip s passing through the apparatus and passes through any pinholes in the strip to the detector chamber 98 via a seat in the bed of the apparatus. The strip guides and edge shields are carried on the carriages 4 which are urged against the side of the strip by the weights 142. The engagement of a carriage with its associated edge is shown in Fig. 7, the relative positions of sheet and carriage is maintained by the rollers 74 and the edge is encompassed by the light absorbing cavity formed by the surfaces of members 22, 32R, 42, 48, 52 and 32L (not shown) all of which are naturally or coloured black, hence no light can be reflected around the edge of the sheet to the light detector below. To prevent light passing through the slot when dealing with small widths of sheet a curtain 104 is attached to the outward end of each carriage and covers that part of the slot extending outwards beyond the carriages, the curtain is tensioned by the weights 110. Any irregularities in the surface of the strip cause the upper jaw 42 to pivot to the broken line position hence allowing the strip to pass through the detection. Specification 586,612 is referred to.
Patent GB-1192789-A (GB)
Title: Material Metering Devices
IPC: A01K5/02
Filed: 1967-07-01
Abstract: 1,192,789. Auger delivering a measured quantity. F. A. CHANDLER, [trading as FARM ELECTRONICS & INSTALLATIONS]. 16 Sept., 1968 [1 July, 1967], No. 30440/67. Heading B8A. The auger 6 delivers a measured quantity of material by performing a predetermined number of revolutions, the counting of the revolutions being effected by microswitch 1 operated by a cam mounted upon the shaft of auger 6, the pulses being fed to solid state counter 7 so that the latter after a required number of revolutions stops the motor 3. Counter 7 is preset to give the required quantity of material. Counter 9 registers the number of revolutions after the performance of a plurality of operations of the auger, whilst knob 8 controls the speed of the motor.
Patent GB-425061-A (GB)
Title: Improvements in the manufacture and production of olefine chlorides
IPC: C07C17/02
Filed: 1933-11-02
Abstract: Olefine chlorides are obtained from gases containing olefines by treating the gases with chlorine in the presence of a solvent for olefines and chlorine and in the presence also of a catalyst comprising a chloride of an element (other than carbon) of the fourth to the seventh periodic group.  Suitable solvents are halogenated aliphatic hydrocarbons such as dichlorethanes, dichlorpropanes, carbon tetrachloride, trichlorethanes, tetrachlorethanes, and pentachlorethane.  Suitable catalysts are antimony pentachloride, bismuth trichloride, iodine chloride, phosphorus pentachloride, sulphur monochloride, tin tetrachloride, titanium tetrachloride and manganese dichloride.  The process may be effected at atmospheric temperature and atmospheric or raised pressure.  When gases rich in olefines or hydrogen are treated, the chlorine may be added in stages or the gases may be diluted with the residual gases of the process. In the examples: (1) chlorine and an illuminating gas containing added ethylene are fed to a washing-tower containing a solution of antimony pentachloride in tetrachlorethane; the gases leaving the tower are passed through active carbon, to recover vaporized chlorinated hydrocarbons, and then washed with milk of lime to remove residual chlorine and hydrogen chloride, if formed; the ethylene chloride produced is separated from the tetrachlorethane by distillation; (2) a waste gas from the hydrogenation of coal, consisting mainly of lower paraffins, is cracked to produce a gas containing substantial proportions of lower olefines and hydrogen; the gas is passed under pressure through a series of four towers, each of which contains a solution of titanium tetrachloride in pentachlorethane and to each of which chlorine is supplied; a part of the liquid in the towers is continuously withdrawn and distilled over lime to recover the olefine chlorides formed.
Patent GB-691623-A (GB)
Title: Improvements relating to the operation of electrical impulse counter electron tubes
Inventor: BRADY THOMAS WILLIAM
IPC: H03K29/00
Filed: 1950-12-14
Abstract: 691,623. Multi-stable state circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 15, 1951 [Dec. 14, 1950], No. 30530/50. Class 40 (vi). In a sequence discharge tube for use in counting pulses in which a discharge is transferred from one cathode to an adjacent cathode by supplying suitably phased voltages to a pair of guide electrodes associated with its corresponding cathode a pulse of rectangular waveform is applied to ones of the pairs of guide electrodes and a delayed voltage derived from the first pulse by integration is applied to the other ones of the pairs. The Figure shows a pulse counting or frequencydividing circuit in which positive going input pulses are applied to trigger a cathode coupled flip-flop circuit comprising valves V1 and V2 to generate negative going pulses at the anode of valve VI. These pulses are applied to the ones G1 of each pair of guide electrodes and via an integrating circuit to the remaining commoned electrodes G<SP>1</SP> of each pair of guide electrodes of a multi-cathode sequence discharge tube T1. Thus, if initially a discharge is taking place between the anode A and cathode C10 of the tube T1 successive impulses will cause the discharge to be progressed around the tube until on the tenth pulse cathode C10 is included in the discharge path and the resulting voltage drop across resistor 21 is applied via an amplifier stage 22 to a further discharge tube T2 the circuit thus functioning as a scale of ten counter. To re-set the counter at the start of a count, i.e. to return all the tubes to the state in which a discharge is taking place to cathode C10, if any of the cathodes C1-C9 of either tube T1 or T2 is firing a positive pulse which occurs across resistor 23 or 24 on the common earth return lead of cathodes C1-C9 is applied via rectifiers 25 or 26 to the grid of valve V1 of the flip-flop circuit. The flip-flop circuit is thus triggered by successive pulses across resistors 23 or 24 until both tubes T1 and T2 are firing to cathodes C10 when the flip-flop remains in its untriggered stable state and no further movement of the discharge in either tubes T1 or T2 occurs until pulses to be counted are applied at the input. After a time delay which is deemed sufficient for the re-setting action to have occurred contacts 28 are broken and the circuit is then ready to commence a count.
Patent GB-192812-A (GB)
Title: Improvements in fruit grading machines
IPC: B07B13/00
Filed: 1921-11-16
Abstract: 192,812. Purchas, F. B. Nov. 16, 1921. Separating by passing over or through graduated apertures.-In a fruit-grading machine of the kind in which the fruit is sized by means of graded apertures in a series of rotating discs mounted on a vertical spindle, fruit is fed from a hopper 73 to an outer series of small holes' 31 on a disc 11, Fig. 2, and is moved inwards by a stationary guide-wall 34 over the holes 31 and an inner series of larger holes 32, the fruit which will not pass through holes of either semes dropping through a central opening 33 in the disc on to a cushion. The sifted fruit is received in two annular trays on a disc 12, Fig. 4, and as the disc rotates the two sizes of fruit are passed to their respective collecting-trays 44, 46 by a stationary guide-wall 42. The fruit, which falls on to the cushion rolls off and is further sorted by a pair of discs similar to the discs 11, 12, but in which the movement of the fruit is from the centre outwards. The fruit too large to pass the holes in these discs is discharged through a side-wall opening to a collecting-tray. Spring-controlled jigging plates fitted under the sorting discs prevent large fruit from resting on the holes. To prevent damage to the fruit, the surfaces of the discs and walls may be covered with soft material.
Patent GB-1175149-A (GB)
Title: Novel delta15-19-Nor Steroids and their Preparation
IPC: C07J1/00
Filed: 1967-07-03
Abstract: 1,175,149. #<SP>15</SP>-Estrapolyenes. STERLING DRUG Inc. 3 July, 1967 [11 July, 1966], No. 30623/67. Heading C2U. The invention comprises compounds of the general formulµ wherein R is H, C 1-4  alkyl, C 2-4  alkenyl, C 2 _ 4  alkynyl or C 2-4  haloalkynyl, R<SP>1</SP> is C 1-6  alkyl and R<SP>11</SP> and R<SP>111</SP> are each H or C 1-12  carboxylic acyl. Compounds of Formula I are prepared by reducing the corresponding 1,3,5(10),15-tetraenes with alkali metal/liquid ammonia, or, for products wherein R is other than H, by the action of RLi or RMgX (X = halo) on a compound of Formula V. Compounds of Formula II are prepared treating a compound of Formula I with mild acid. Compounds of Formula III are prepared by treating a compound of Formula I with a strong acid, or a compound of Formula II with a strong base or strong acid, and, when required, esterifying the resulting 17#-ol of Formula III. Compounds of Formula IV are prepared by metal hydride reduction of a compound of Formula III, and, when required, esterification of the obtained 3#-hydroxy compound. Compounds of Formula V are obtained by oxidation of a compound of Formula I wherein R is H. The compounds of Formula I are stated to possess progestational. estrogenic and myotrophic properties. 3 - Methoxy - 17α - methyl - estra - 1,3,5(10),15- tetraen - 17# - ol, 3 - methoxy - 17α - (n - butyl)- estra - 1,3,5(10),15 - tetraen - 17# - ol, and 3- methoxy - estra - 1,3,5(10),15 - tetraen - 17# - ol are all prepared from 3-methoxy-estra-1,3,5(10), 15-tetraen-17-one.
Patent GB-1017489-A (GB)
Title: Improvements in and relating to apparatus for displacing crop, such as grass, hay and the like
IPC: A01D78/02
Filed: 1964-08-04
Abstract: 1,017,489. Picking up crops. LANDBOUWWERKTUIGENEN MACHINENFABRIEK H. VISSERS N.V. Aug. 4, 1964 [July 24, 1963], No. 30737/64. Heading B8E. [Also in Division A1F] Crops such as grass or hay are picked up by a rotating shaft provided with teeth 4, Fig. 1, mounted on flexible strips 2. The strips 2 are attached to the shaft by bolts passing through plates 3. The teeth may be mounted in groups on plates 5 which are bolted to backing plates 6. As shown in Fig. 2 the strips 2 may be bolted to rods or tubes 8a which are attached to the rotating shaft by arms 8 and channel members 7.
Patent GB-1092862-A (GB)
Title: Coal cutter pick
Inventor: JENKINS CYRIL
IPC: E21C35/183
Filed: 1963-08-02
Abstract: 1,092,862. Mining picks. PADLEY & VENABLES Ltd. July 31, 1964 [Aug. 2, 1963], No. 30739/63. Addition to 767,324. Heading E1F. A hard metal insert is secured in a hole in a pick head so as to be positioned at the junction of the convex top and front faces of the head.
Patent GB-615217-A (GB)
Title: Improvements in and relating to the driving of blowers for compressed combustible gases
IPC: F04D29/08
Filed: 1945-11-16
Abstract: 615,217. Driving blowers; elastic-fluid turbines. AKT.-GES. BROWN, BOVERI, & CIE. Nov. 16, 1945, No. 30771. Convention date, May 15. [Classes 110 (i) and 110 (iii)] [Also in Group XXVII] A gas-burning engine which drives a blower for combustible gas uses as fuel, gas escaping through a stuffing-box of the blower. As shown, Fig. 1, a blower 3 for delivering combustible gas is driven by an internal combustion engine 7. A blower 8 may either be directly driven or driven by exhaust from the engine. The blower 8 supplies air to a mixing valve 10 which is also supplied with combustible gas from a tapping 5 of a stuffing-box 4 of the blower the gas and air passing to the engine by a pipe 12. If desired, compressed air from the blower 8 may be supplied to a sealing channel 6 adjacent the stuffing-box. If the engine is to operate without supercharging a separate blower may supply compressed air to the sealing channel. If the supply of gas from the stuffing-box 4 is insufficient to run the engine additional gas can be supplied from the suction side of the blower 3 by a pipe 14 and reducing valve 15 to the mixing valve 10. In an alternative, Fig. 2, the blower 3 is driven by a gas-turbine plant comprising a gas turbine 21, blower 16, heat exchanger 18 and combustion chamber 19. Compressed air from the blower 16 is supplied to the sealing channel 6 and gas from the gland of the blower 3 is supplied to the combustion chamber 19. If the gas from the gland is insufficient to run the plant additional gas may be supplied from the inlet side of the blower 3 through a reducing valve 15. In a modification of Fig. 2, an additional turbine on the same shaft as the turbine 21 is provided and this is driven by expansion of the gas from the inlet to the blower 3 the gas being preheated by the exhaust from the turbine 21 and after expansion in this turbine the gas is supplied to the combustion chamber. In another modification the suction side of the blower 16 is connected to the channel 6 so that it draws gas from this channel and air from the outer part of the stuffing-box towards the sealing channel.
Patent GB-1162277-A (GB)
Title: Vernier-Calipers
Inventor: NUMATA YEHAN
IPC: G01B3/20
Filed: 1967-07-04
Abstract: 1,162,277. Caliper gauges. Y. NUMATA. July 4, 1967 [March 24, 1967], No. 30805/67. Heading G1M. In a caliper gauge the slidable bar is clamped in the required position by urging a projection on member 5 against the side wall of the longitudinal groove 2.
Patent GB-983704-A (GB)
Title: A photo-electric weft detector
IPC: D03D51/34
Filed: 1961-08-25
Abstract: 983,704. Detecting weft depletion. RUTI MACHINERY WORKS Ltd. Aug. 25,1961 [Aug. 25, 1960], No. 30812/61. Heading D1E. A photo-electric weft detector, wherein in a beam of light 14 is reflected by the pirn 18 on to a receiver 11 which is connected to an amplifier 12,has the provision of a switching device 100 which connects the receiver 11 to the amplifier 12 only when the pirn 18 is in the path of the beam 14. The switching device 100 may be operated by a permanent magnet 106 on the shuttle inducing a current in a coil 102 connected to the device 100.
Patent GB-242583-A (GB)
Title: Improved process of and apparatus for the extraction of the hydrogen contained in industrial gases and chiefly in coke oven gas
IPC: C01B3/02
Filed: 1924-12-23
Abstract: 242,583. Soc. Ammonia. Nov. G, 1924, [Convention date]. Separating gaseous mixtures by liquefaction.- In the extraction of hydrogen from coke oven and other industrial gases, the cold necessary for the condensation of the gases accompanying the hydrogen is obtained by expansion, with recovery of external work, of hydrogen from the gases under treatment and by liquid nitrogen rom an outside source. The apparatus comprises separating chambers 3, 10, a temperature exchanger 7, and a nitrogen washing chamber 19. The gas freed from water and other easily condensible impurities is fed at high pressure and low temperature into the lower part of the separator 3, and is partly condensed in its tubes, the residue passing round the tubes of the interchanger 7 into the bottom of the separator 10. Further condensation takes place here, and the gas rising through its tubes 11 is led through a conduit 12 and the tubes of the interchanger to an expansion engine 14 exhausting into a chamber 16 around the tops of the tubes 11. The expansion of the engine may be regulated to produce any required temperature. From this chamber, which is provided with baffles, the gas passes through a pipe 18 into the chamber 19, where it is washed by liquid nitrogen falling over baffles 28, a mixture containing only hydrogen and nitrogen escaping by the outlet 36. The liquid which falls to the bottom of the chamber 19 is led through a pipe 30 into the lower compartment surrounding the tubes in the column 10, wherein it flows over a series of overflow troughs 25 and plates 26 and is vaporized and carried off by a pipe 34. Additional liquid nitrogen may be added at the point 31 without affecting the composition of the hydrogen nitrogen mixture passing away from the pipe 36. The liquid collecting in the bases of the columns 3, 10 is led through pipes 22, 23 to a sprinkler 24 in the upper part 5 of the column 3 and falls over plates 21, methane collecting in the lower part around the tubes while the vaporized fractions are led off together or separately by pipes 32, 33 connected with the outlet pipe 35. The chambers 16, 19, may be mounted apart from the columns 3, 10.
Patent GB-698952-A (GB)
Title: Improvements in or relating to cyclopentanophenanthrene derivatives and methods of production thereof
IPC: C07J75/00
Filed: 1950-12-19
Abstract: The invention comprises 17a -hydroxy-21-acyloxy - and 17a  : 21 - dihydroxy - D 1,2 - allopregnene-3 : 20-diones, and the preparation thereof, by bromination and dehydrobromination, followed if desired by mild hydrolysis, from 17a  - hydroxy - 21 - acyloxyallopregnane - 3 : 20 - diones, which may be first prepared by the action of a mild oxidizing agent of the general formula <FORM:0698952/IV (b)/1> (wherein R represents an aliphatic radical, R1 an aromatic or aliphatic radical, and X bromine or chlorine) on a 3b  : 17a -dihydroxy-21-acyloxyallopregnan - 20 - one.  Preferably an equimolecular proportion of the mild oxidizing agent is used, or such small excess that only an equimolecular proportion reacts, and the oxidation is effected in the presence of a weak organic base.  In examples: (1) 3b  : 17a  - dihydroxy - 21 - acetoxyallopregnan - 20 - one is treated with N-bromoacetamide in tert.-butyl alcohol in the presence of pyridine, the resulting 3 : 20-dione is treated with bromine and hydrobromic acid in glacial acetic acid, and the 2-bromo compound so obtained is refluxed with collidine to produce 17a  - hydroxy - 21 - acetoxy - D 1,2 - allopregnene-3 : 20-dione; (2) the product of (1) is hydrolysed with potassium bicarbonate in methanol. Additional reagents specified are: mild oxidizing agents: bromophthalimide, bromosuccinimide and chlorosuccinimide; weak organic bases present during oxidation: collidine, lutidine and diethylaniline; dehydrobrominating agents; pyridine, lutidine and diethylaniline.
Patent GB-259797-A (GB)
Title: Improvements relating to water heaters or boilers
IPC: F24H1/18
Filed: 1925-12-08
Abstract: 259,797. Highfield, J. S. Dec. 8, 1925. Block-form boilers comprise a container a having a conical or pyramidal base b, which is heated at its apex by an oil or gas burner l, and which is provided with ribs b, c on its internal and external surfaces respectively, and a watercirculation tube f having a splayed end which rests upon the ribs b. The container is enclosed by a casing having an outlet o for the products of combustion from the burner. In use, cold water is admitted through the tube k into the bottom of the container and flows between the ribs b into the space beneath the splayed end of the tube f through which it passes to the top of the container and thence downwardly and through apertures in the baffle h back to the bottom of the container. The heated water may pass through the tube p to a. storage vessel or it may be drawn off directly for use.
Patent GB-717732-A (GB)
Title: Container-forming machine
IPC: B31B3/00
Filed: 1952-12-05
Abstract: 717,732. Making bags. ARNOLD, J. C. (Pneumatic Scale Corporation, Ltd.). Dec. 5, 1952, No. 30990/52. Class 94 (2). [Also in Group VIII] In an apparatus for forming a bag which may be the inner liner of a container for packaging food or the like; the bags are formed in a continuously moving strip of heat sealable material and individual bags are severed from the strip by shears which travel with the strip at the same speed as the strip during the severing operation. The bag-forming material 10 passes over a former 16 and between rollers 18, which fold the web longitudinally, and between heat-sealing rollers 22, which form spaced transverse seals and a continuous longitudinal seal. An unsealed portion is left in the centre of the transverse seal to provide an opening for the pipe 26 which projects a stream of air through the opening into the endmost bag to assist in transferring it to a mandrel 48. The rollers 18, 22, and feed rollers 32 are provided with grooved portions 28, 30, 36, respectively, to accommodate the pipe 26. While air is being projected through the pipe 26 the opposed side walls at the forward or mouth portion of the bag section are grasped and spread apart by reciprocating suction cups 38 which are arranged to travel forward at the same speed as the strip during this portion of its cycle, and a reciprocating cutter 208, 210, also moving at the same speed as the strip, severs the endmost bag section. At the same time the air vent opening is heat-sealed by members 44, 46, movable with the severing mechanism. The suction cups are connected by a flexible pipe 140 and pipe 142 to a cam-operated valve 144 which is connected by a pipe 146 to a vacuum pump, and are rockingly mounted on a slide member 136. By arrangement of rollers 156 with a stationary cam member 158 the suction cups are spread apart to open the mouth of the bag wider and the bag is transferred to a mandrel 48 which is one of a plurality of mandrels carried by an intermittently rotating spider 50 of a carton forming machine. A cam 162 co-operating with a pivoted lever 166, link 169 adjustable on lever 170 and link 175, reciprocates the slide 136. The air stream from the pipe 26 is controlled by a cam 196 co-operating with a bell crank 200 to open and close a valve 190. The cutting mechanism, Figs. 4 and 5, comprises shear blades 208, 210, mounted to rock on a bushing 212 which is slidably mounted on the guide rod 148, and attached to cam levers 209, 211. A cam 222 slidably mounted on a square shaft 220 cooperates with the levers 209,   211, to operate the blades 208, 210, the shaft 220 being rocked by a cam 232 on the shaft 58 through a bell crank 236, link 244, and an arm 246 secured to the shaft 220. To reciprocate the shearing unit, a cam 254 on the shaft 58 co-operates with a bell crank 258, link 262, and one arm 264 of a pivoted lever whose second arm 268 is secured through a link 270 to the slidably mounted bushing 212. The heat sealing members 44, 46, are carried by arms 272, 274, mounted on the bushing 212 to rock with the blades 208, 210.
Patent GB-264980-A (GB)
Title: Improvements in apparatus for mechanical direction signals for motor cars
IPC: B60Q1/34
Filed: 1925-12-09
Abstract: 264,980. Woosnam, R. L. Dec. 9, 1925. Road-traffic signals on vehicles.-Direction signals for motor cars are given by a centrally pivoted arrow or arrows 1 rotatable under the control of the driver. Each arrow is turned by a Bowden wire against the action of a coil spring 8, and arrows fitted at the front and rear of the car are operated simultaneously. The front and rear sides of the arrow are fitted with coloured glass 3, and the lamp 13 is mounted centrally, being carried by a member 11 screwed into the bracket 6 carrying the arrow. The operating handle may be locked in any signalling position. Reference has been directed by the Comptroller to Specifications 6456/15, 15044/15, 153,738, 157,697, 166,394, and 172,473.