baber/WOPTO huggingface dataset:
Patent GB-221189-A (GB)
Title: Improvements relating to electrolytic decomposition apparatus
IPC: C25B11/02
Filed: 1924-07-09
Abstract: 221,189. Nordiske Fabriker De-No-Fa Aktieselskap. Aug. 29, 1923, [Convention date]. Electrodes; diaphragms.-An electrode comprises thin sheets 3 of iron or other material threaded on bolts 1 and spaced by tubes 2, and by one or more conducting blocks 6, each of which is provided with an arm 10 serving as a support and electric connection. The members are secured between endpieces 4 by nuts. Bolts, spacers, and connections may be provided at the top, middle, and bottom of the sheets. Positive and negative electrodes may be arranged with their sheets 3 opposite one another as shown at a, or in staggered relation as shown at b. A diaphragm 9 may be supported by a dependent rib on the, cell cover.
Patent GB-821328-A (GB)
Title: Improvements in tractor-trailer combinations
Inventor: MUTH ERNST
IPC: B60K17/28
Filed: 1956-05-29
Abstract: 821,328. Universal joints; shaft couplings. HANOMAG A.G. May 29, 1956, No. 16527/56. Class 80 (2). [Also in Group XXXI] Relates to a tractortrailer combination (see Group XXXI) in which a tractor power take - off shaft 24, Fig. 2, is automatically coupled to a shaft 23 on the trailer. The shaft 23 has a limited telescopic connection with a shaft 24 connected by a universal joint 7 to a member 27 which has a flared portion having recesses 28 adapted to be engaged by dogs 37 carried by the shaft 24. The shaft 23 and the member 27 are kept in alignment by springs 30, 30<SP>1</SP> bearing against a ring 32. In a modification, Fig. 1 (not shown), the shaft 24 has a splined engagement with an internal portion of the member 27, the flared portion of which serves to guide the shaft 24.
Patent GB-376314-A (GB)
Title: Improvements in or relating to inclinometers
IPC: G01C9/08
Filed: 1931-02-05
Abstract: 376,314. Clinometers. KREIDLER, A., 71, Herdweg, Stuttgart, Germany. Feb. 5, 1931, No. 16566/32. Convention date, Feb. 12, 1930. Divided on 376,249. [Class 97 (ii).] A pendulum inclinometer for moving bodies comprises an auxiliarv movement member mounted on a main movement member and adapted to correct the indication of the main movement member for acceleration effects by means of a compensating gear. In the form shown the main movement member 40 carries at its upper end a cross beam in which runs a slide 41 provided with teeth 42 and held in its central position by springs 43 when not acted on by accelerating or retarding forces. The teeth 42 engage a toothed wheel. 44 which is freely mounted on the main pendulum spindle and has secured to it a bevel wheel 45 driving a shaft 47 carrying the pointer 48.
Patent GB-1202014-A (GB)
Title: Improvements relating to wire wrapping tools
Inventor: LEATHER RUSSELL ALLAN
IPC: H01R43/033
Filed: 1969-03-29
Abstract: 1,202,014. Wrapping electric terminals. FERRANTI Ltd. 29 March, 1969, No. 16590/69. Addition to 1,201,436. Heading B3E. In a modification or improvement of a wire wrapping tool as claimed in Specification 1,201,436, said inner wrapping member comprises two coaxial portions, a hollow bit 11 and a drive-shaft 13, capable of limited relative rotation and a pair of movable wire stripping jaws 21, 22 are carried one on each of said portions of the inner member with the cutting edge of each jaw protruding into a longitudinal recess 20 in each portion of the inner member whereby when the inner member 11, 13'is rotated relative to the outer member 10 the relative movement of the jaws causes the insulation of the wrapping wire to be cut through and retained in the longitudinal recess as the wrapped joint is formed. The bit 11 is resiliently connected to the driveshaft 13 by a torsion member or leaf-spring 16 which also acts to hold apart the cutting edges of the wire stripping jaws. The operation of the tool is similar to that disclosed in parent Specification 1,201,436 except that as the wire is drawn over the bit 11 the tension overcomes the torque of the torsion spring 16 and hence the drive-shaft 13 and stripping jaw 21 rotate relative to the bit 11 and jaw 22 and cut through the wire insulation. The jaws remain closed and retain the insulation in the recess 20 as the driveshaft is rotated and the wire wrapped around the post 32.
Patent GB-335884-A (GB)
Title: Improvements in means for securing ships' hatch covers
IPC: B63B19/24
Filed: 1929-05-30
Abstract: 335,884. Hamlett, E. P., May 30, 1929. Hatch fastenings.-Hatch cleats comprise a wedge 1 preferably wooden secured by a screw 1<a> to a metal shoe 2 which has a hinged extension 2<a>. The stationary cleat 6 secured to the deck has a slot 5 with which engages a headed pin 4 carried by the extension 2a. In operation the wedge 1 is pressed home to clamp the tarpaulin between the batten bar 8 and the coaming 7 and may be moved back to an extent to allow the main hinged part to be swung back about its hinge to free the batten bar, the extension 2a remaining attached to the fixed cleat 6.
Patent GB-1427760-A (GB)
Title: Negatively charged toner for electrophotography porcess for the manufacture of steroid epoxides
IPC: C09B45/04
Filed: 1973-04-06
Abstract: 1427760 Metal complex azo dyestuffs CANON KK 6 April 1973 [7 April 1972] 16636/73 Heading C4P [Also in Divisions C3 and G2] Metal complex dyes of formula in which A, A<SP>1</SP>, B and B<SP>1</SP> are substituted or unsubstituted phenylene groups; R 1  to R 4  are -O-, -NH- or -COO-; and M is Cr, Co, Fe or V, are prepared. They give brown or various black shades (although red, purple and green dyes are also described but not prepared), and are used to react with amino-containing polymers to give polymeric dyes useful as toners in electrophotography.
Patent GB-981066-A (GB)
Title: Improvements in and relating to electric inverter circuits
Inventor: BOHM HELLMUTH
IPC: H02M7/5383
Filed: 1961-05-08
Abstract: 981,066. Supply systems for discharge lamps. LICENTIA PATENT - VERWALTUNGS G.m.b.H. May 8, 1961, No. 16649/61. Heading H2H. [Also in Division H3] An inverter, more particularly for supplying discharge lamps, comprises two alternately conducting transistors connected in series with a series circuit tuned approximately to the inverter frequency, positive feedback being applied to the transistors in dependence upon the current in and the voltage across the load circuit. The inverter shown comprises two transistors connected in series across the supply and having a discharge lamp load L p  connected in series with a choke L between the junction of the two transistors and the junction of two capacitors C1, C2 connected across the supply. Current and voltage feedback are transformers T1 and T2 cause the circuit to oscillate whereby the transistors conduct alternately. During each half cycle one of the capacitors 61, 62 is resonantly charged and the other is resonantly discharged through the load, the switch-over occurring when the transistor current is substantially zero, the resonant half-cycle being greater than the conducting period. Additional lamps may be switched into circuit in which case one of the capacitors C1, C2 may be omitted so that a single pole switch may be used (Fig. 3, not shown). When a different voltage is required for the lamp it may be fed through a transformer.
Patent GB-1288351-A (GB)
IPC: F16D65/28
Filed: 1971-05-24
Abstract: 1288351 Hydraulic brake systems BENDIX CORP 24 May 1971 [3 June 1970] 16675/71  Heading F2F An hydraulic brake system includes a power boost mechanism 10 the housing 12 of which has an inlet port 14, an outlet port 16, a chamber 40 connected to the port 14 and slidably receiving a piston 36, a pressure source in the form of the pump 22 of a power steering unit connected to the inlet port 14, a first valve for controlling fluid communication between ports 14, 16 and chamber 40, an accumulator 30 connected to the pump 22 by a conduit 26, 28 and to the chamber 40 by a conduit 76 controlled by a second valve which allows fluid to enter chamber 40 from the accumulator when the pump source 22 fails. The branch 28 contains a restrictive orifice 32 and a check valve 34. The first valve is formed by a spool member 66 co-operating with a bore 68 and the second valve has a valve member 80 co-operating with a seat 82, the member 80 being displaced from its seat by the spool 66 moving further when pressure from pump 22 fails.
Patent GB-768258-A (GB)
Title: Improvements in or relating to hydraulic pressure intensifiers or boosters
Inventor: WINFIELD WALTER ROBERT
IPC: F15B3/00
Filed: 1954-06-08
Abstract: 768,258. Reciprocating pumps. FAWCETT, PRESTON & CO., Ltd. June 30, 1955 [June 8, 1954], No. 16702/54. Class 102(1) [Also in Group XXIX] A hydraulic pump intensifier comprises a differential piston a working in high and low pressure chambers b<SP>1</SP>, b<SP>2</SP>, b<SP>3</SP>, b<SP>4</SP>. Low pressure liquid to the chambers b<SP>1</SP>, b<SP>2</SP> is controlled by a valve h, solenoid actuated under the control of limit switches f, g. Low pressure liquid may also be supplied to the chambers b<SP>3</SP>, b<SP>4</SP> through the valve h or they may be separately supplied. The valve h may be replaced by two separate valves; the limit switches f, g may be replaced by pressure actuated switches in the lines j\ j<SP>2</SP>. A pressure switch q breaks the valve control circuit at a predetermined pressure.
Patent GB-962238-A (GB)
Title: Screening machine
IPC: B07B1/36
Filed: 1961-05-08
Abstract: 962,238. Screening apparatus. SCHUCHTERMANN & KREMER-BAUM A.G. FUER AUFBEREITUNG. May 8, 1961 [May 9, 1960], No. 16745/61. Heading B2H. A drive 6 imparts oscillations to a screen frame 1 within a screen box mounted on springs 31, 32, and the main axis of oscillation is at an angle to a screen 2 supported by the frame. Oscillating members 7 are distributed over and secured to the screen and are driven by the oscillations imparted by the drive 6 so as to produce additional oscillations perpendicular to the screen. The members 7 are attached to longitudinal or transverse supports 8, and each member is secured to the screen at one end and has a rubber buffer 74 at its opposite end. The buffer is movable between adjustable stops whereby the amplitude of its movement is controllable. The plunger is secured to the support 8 by a resilient element 75. In a modification, two or more superposed screens are provided, and each oscillating member is secured to each screen.
Patent GB-145490-A (GB)
Title: Improvements in methods of riveting and tools therefor
IPC: B21J15/04
Filed: 1920-06-21
Abstract: 145,490. Junkers, H. Jan. 5, 1918. [Convention date]. Setting cyclets.-Small tubes or other hollow bodies difficult of internal access for riveting are connected by tubular rivets having a flanged outer head, the inner end being flanged over internally after the rivet has been passed through the assembled parts. Figs. 2 and 3 show a tool for carrying out the process, when riveting a plate a<1> to a tube a. A flanging-tool n is carried by a plunger k sliding in a casing h forming an abutment for the flanged head of the rivet, the tool being pressed against the tobular end of the rivet in successive angular positions or preferably continuously rotated as shown by a handle p to flange over the rivet, the plier-like handles i, g serving to press the tool against the rivet.
Patent GB-543211-A (GB)
Title: A new or improved fire fighting appliance
IPC: A62C31/24
Filed: 1940-11-22
Abstract: 543,211. Telescopic pipes. CAMPBELL, F. A., and FISHER & LUDLOW, Ltd. Nov. 22, 1940, Nos. 16825/40 and 2968/41. [Class 99 (ii)] [Also in Groups XXI and XXIX] A telescopic pipe, extended by liquid pressure, for use in fighting fires or spraying crops, comprises a primary section fitted with a non-return inlet valve, and a secondary section having its inner end formed as a piston sliding in the primary section whereby admission of liquid extends the inner section against a stop when liquid passes from one pipe to the other through ports in their walls which are covered by a sleeve ; a third section may be provided and the assembly may be carried on a trailer by a cradle having elevating means. Fig. 6 shows the junction between two extended sections. The primary section 41, having at its lower end a hose connection, a non-return valve and a draining cock, is provided with an internal skirt 56 having two V shaped notches into which projections 69 on a collar 68 on the secondary section 62 fit. The liquid passes from one section to the other through the ports 58, 59, 67 and the connecting space formed between the pipe 41 and sleeve 61. As shown in Fig. 3 the pipes are mounted on a cradle 21, 22, pivoted to struts 16, 17 on a chassis and raised by a hand-operated elevating gear.
Patent GB-165108-A (GB)
Title: Improvements in and relating to submarine mines, depth charges and like bodies
IPC: F42C1/04
Filed: 1916-11-24
Abstract: 165,108. Riley, G. B., Sherman, C. C., and Block, H. O. Nov. 24, 1916. Mines, marine.-Relates to mines and depthcharges of the kind in which a spring striker is cocked gradually and automatically as the body sinks through the water and is released automatically to fire the mine on reaching a predetermined depth, and consists mainly in means for .adjusting the stroke of movable parts of the mechanism according to the depth at which it is desired the mine shall explode. As shown. in Fig. 1, the spring 9 of the striker 1 is cocked by an hydrostat, and the striker is released by the balls 2 when a recess 7 in a sleeve 6 movable with the hydrostat comes opposite, these balls. The initial position of the sleeve 6 is adjusted by a nut 8 which can be rotated bv means of a milled head 12. If impact occurs before the appointed depth is reached, a ring 15 at the end of the sleeve 6 sets forward against springs 16 on account of its momentum, and releases the balls 2. In a modification, the spring striker is cocked by a vane-wheel which is rotated by the water. Modifications of the impact firing-device are also described, one of which comprises a jointed pendulum.
Patent GB-1012046-A (GB)
Title: Improvements in or relating to polyglycidyl ethers and method of producing same
IPC: C08G59/06
Filed: 1962-05-02
Abstract: Polyepoxide resins are obtained by reacting an amine, polyamide or anhydride with a polyglycidyl ether of the condensation product of a terpene which is a p-menthadiene, or a terpene convertible to a p-menthadiene under the condensation conditions, with phenol or an alkyl-substituted phenol having 1-3 alkyl groups each of 1-4 carbon atoms, said condensation product having a hydroxyl content of 7.5-8.0% and molecular weight 330-360, and said polyglycidyl ether having a hydroxyl content of 1-5%, an oxirane content of 1.5-5.5%, and a combined hydroxyl content and oxirane content of 4.5-7.0% (see Division C2). Examples use as curing agents (i) "Versamid 115" (Trade Mark), (ii) dimethylbutenyltetrahydrophthalic anhydride and dimethyl-benzylamine, and (iii) maleic anhydride and dimethyl-benzylamine.  Specification 1,012,045 is referred to.ALSO:The invention comprises (i) a polyglycidyl ether of the condensation product of a terpene which is a p-menthadiene, or a terpene convertible to a p-menthadiene under the condensation conditions, with phenol or an alkyl-substituted phenol having 1-3 alkyl groups each of 1-4 carbon atoms, said condensation product having a hydroxyl content of 7.5-8.0% and molecular weight 330-360 (see Specification 1,012,045) and said polyglycidyl ether having a hydroxyl content of 1-5%, an oxirane content of 1.5-5.5%, and a combined hydroxyl content and oxirane content of 4.5-7.0%; (ii) their production by reacting the condensation product with at least 1 mole of a halohydrin and 1.2-2.4 moles of alkali metal hydroxide per mole of condensation product at 20 DEG -180 DEG  C.; and (iii) esters formed by reacting one esterification equivalent of a polyglycidyl ether of (i) above with 0.2-0.9 equivalents of a monocarboxylic acid. Specified terpenic compounds are limonene, dipentene, terpinolene, a -terpinene, a -terpineol, a -pinene, cineole, terpin hydrate or mixtures thereof; specified phenols are phenol, cresols, xylenols and mixtures thereof.  Specified halohydrins are epichlorohydrin, epibromohydrin and glycerol dichlorohydrin.  Solvents may be used in (ii).  Specified acids for use in (iii) are aliphatic C4- 22 acids, and mononuclear, polynuclear and aromatic acids, such as butyric, 2-ethylhexanoic, lauric, stearic, oleic, linoleic, abietic, benzoic, salicylic and cresotinic acid, and drying oil and semi-drying oil fatty acids, such as linseed, soybean, tall and dehydrated castor oil fatty acids, and styrenated fatty acids.
Patent GB-785340-A (GB)
Title: Improvements in infra-red ray detecting apparatus
IPC: F41G7/22
Filed: 1955-06-13
Abstract: 785,340. Locating sources of infra-red radiation. BRINRO, Ltd. June 13, 1955 [June 29, 1954], No.6 1972/55. Class 40 (3). In an apparatus for detecting and indicating the direction of small sources of infra-red rays in a plane comprising a receiver including a scanning member rotating about an axis normal to the plane, and a photo-cell and an indicator including a member rotating relative to a fixed dial in synchronism with rotation of the receiver and means to indicate receipt of a signal from the photo-cell caused by an infra-red source, a filter is provided between the photo-cell and indicating means to prevent passage to the latter of signals of long duration due to extended sources of radiation such as the sun and reflected light from clouds. In the embodiment (Fig. 1) the receiver comprises a scanning inclined plane mirror 1 rotated about a vertical axis by motor 3 which also rotates a selsyn transmitter to communicate its motion via a selsyn receiver to arm 12, bearing an indicator lamp 10 which co-operates with a fixed dial 11. Light collected by mirror 1 is focused on photocell 6 by mirrors 4 and 5 so as to give a current pulse of short duration, when a small source comes within the field of view, which is preamplified at 7 and passes through high-pass filter 9 to amplifier 8, the output of which flashes lamp 10. Consequently the position on the dial of the lamp when illuminated corresponds to the angular position of the source. The filter is designed so that pulses exceeding a predetermined length caused e.g. by the setting sun are blocked. The mirror and photo-cell system is so designed preferably by using an elongated photo-cell that the object field an image of which covers the photo-cell has an angular height of circa 0.5 degrees and width of only 0.5 to 1 degree. Where the apparatus is mounted on a ship at least the optical system is mounted on a platform driven by servomotors controlled by gyroscopes to keep the axis of rotation of the mirror vertical.
Patent GB-458106-A (GB)
Title: Improvements in instruments for testing for colour perception
IPC: A61B3/06
Filed: 1935-06-12
Abstract: 458,106. Sight-testing apparatus. RAYNER OPTICAL CO., Ltd., PIKE, J., and HOBSON, E. N., 100, New Bond Street, London. June 12, 1935, No. 16979. [Class 97 (i)] An apparatus for testing colour perception comprises two discs rotatable in a casing and having apertures carrying colour filters, light from a lamp carried in the casing passing through the filters and through apertures in a wall of the casing to the eyes of the patient. The intensity of the beams may be varied by placing neutral filters in the beams, and the size of the beams may be varied by the insertion of stops. The discs 15, rotatable on spindles 12 by knob 13, are arranged in a casing 1 to be on either side of a housing 6 containing the lamp 11. Light from the lamp passes through the colour filters 17 and through apertures 18 in the wall 3, to the eyes of the patient either directly or by reflection, so that the light is seen by both eyes simultaneously. The discs carry indicia 23, Fig. 3, observable through lenses 20, Fig. 2, to indicate the colour of the filters opposite the apertures 18, the discs being held in position by spring-loaded pins 24. The spindles 12 also carry plates 26 bearing neutral filters 30 of different densities which on rotation into the beam by means of levers 28 will modify its intensity. Plates 37 having a plurality of stop apertures 38 may be rotated about axes 12 to limit the size of the beams and may be held in position by spring-pressed pins 41 engaging recesses in plates 43. A resistance may be provided to varying the intensity of the light.
Patent GB-594923-A (GB)
Title: Improvements in and relating to stirring devices for chemical apparatus
IPC: B01F15/00
Filed: 1945-07-04
Abstract: <PICT:0594923/III/1> <PICT:0594923/III/2> A stirring rod 2, Fig. 1, passes through the neck of a flask 1, and the aperture is sealed by a flexible tube 4 connecting the neck with a collar or rubber bung 3. The tube 4 may be of rubber, synthetic rubber, or corrugated metal, and may be surrounded by a cooling jacket.  Alternatively, the stirrer 2 may pass tightly through a hole in a resilient disc 5, Fig. 2. of rubber or corrugated metal clamped to the neck of the vessel 1 between flanges 6.
Patent GB-1424373-A (GB)
Title: 7-azido-cephalosporin compounds and their preparation
IPC: C07F9/38
Filed: 1973-04-10
Abstract: 1424373 dl - 7 - Azido - cephalosporin compounds; phosphonate intermediates MERCK & CO Inc 10 April 1973 [14 April 1972 30 June 1972 (2) 10 Oct 1972 5 March 1973] 17050/73 Headings C2C and C2P Novel dl-7-azido-cephalosporin compounds of the Formula (V) in which R is alkyl or aryl, R 1  is a blocking group, R<SP>1</SP> is H, halogen, carbamoyloxy, which may be N-substituted or N,N-disubstituted, alkoxyalkoxy, alkoxy, aryloxy, aralkyloxy, heterocyclic-thio or acyloxy, and B is H, the azido being in α-position or B is -CH 3  or -OCH 3 , the azido then being in #-position, may be obtained by the processes shown in the flowsheet (A) wherein (I) is reacted with a thioformylating agent (e.g. a thionoformate ester) to form (II), which is reacted with a substituted acetone R<SP>1</SP>CH 2 COCH 2 X, where X is halogen or a sulphonate ester, to form (III), the latter is converted to thiazine (IV), or alternatively (IV) is formed directly by reaction of II and the substituted acetone, and finally (IV) is reacted with an azido acetyl reagent where X<SP>1</SP> is halogen, p-toluenesulphonyloxy, -OSO 2 CF 3  or -OSO 2 CH 3 , in the presence of a base. Alternatively, the desired 7-azido compound (V) is obtained by reacting a mixture of III and IV or IV or III per se with the azidoacetyl compound. An intermediate, 1,3,5-tribenzyl-sym-hexahydrotriazine (XXIII) is obtained by reacting benzylamine with formaldehyde, and the α- aminophosphonoacetate ester (I) is obtained as in the following flowsheet (B) XXIII is reacted with a disubstituted phosphite to yield XXIV, isolated as an acid salt, the latter is reduced in the presence of Pd/C forming the salt of XXV. The salt is connected to the amine XXVI by reaction with NH 3 . The amine on reaction with benzaldehyde forms a Schiff base XXVII, which on reaction with a strong base, e.g. an organolithium compound and then a haloformate ester forms imine XXVIII. Treatment of this imine with 2,4- dinitrophenyl hydrazine in the presence of p-toluenesulphonic acid monohdyrate or with p-toluenesulphonic acid hydrate in ether followed by neutralization of the amine acid salt yields the compound I. Other intermediate preparations described are: reaction of methyl 2-chloro-2-methoxyacetate and NaN 3  to give methyl 2-azido-2- methoxyacetate, hydrolysed to 2-azido-2- methoxyacetic acid and reaction with thionyl chloride to 2-azido-2-methoxyacetyl chloride; the latter is reacted with silver trifluoromethyl sulphonate yielding azidoacetyl trifluoromethyl sulphonate; azido acetic acid, mercuric acetate and propyne form isopropenyl azido acetate, which reacts with methane sulphonic acid forming azidoacetyl methanesulphonate; methyl glycolate is phosgenated and reacted with di-pmethoxybenzylamine forming methyl (N,N-dip - methoxybenzyl) - carbamoyloxyacetate which is converted in turn to the corresponding acid and acid chloride, then to 1-diazo-3-(N,N- di - p - methoxybenzyl)carbamoyloxy-2-propanone.