baber/WOPTO huggingface dataset:
Patent GB-1105619-A (GB)
Title: Lifting-jack
Inventor: HORI SEIICHI
IPC: B66F1/02
Filed: 1966-01-24
Abstract: 1,105,619. Lifting-jacks. TAKEUCHI KOGYO KABUSHIKI KAISHA. 24 Jan., 1966, No. 3075/66. Heading B8J. [Also in Division E2] A lifting-jack comprises a casing 3 slidably mounted on a supporting column 1 secured to a 'base-plate 2. A projecting lug 4 engages the load W to be lifted (which may be a vehicle, Fig. 5 (not shown)), an upper apertured plate 8 is attached for limited pivotal movement to a portion of the casing 3 nearest to the lug 4 and a lower apertured plate 9 is spaced by a spring 14 from the upper plate 8 and a spring 15 from the lower wall of the casing 3. The bores from each side of the plates 8, 9 are slightly eccentric with respect to each other so that each aperture has a ridge around its inside wall and so that the plates 8, 9 have openings 81, 8<SP>11</SP> and 9<SP>1</SP>, 9<SP>11</SP>, respectively, slightly out of alignment. A cam 12 is mounted on a pivot 12<SP>1</SP> in the casing 3 and engages a roller 11 rotatably mounted on the lower plate 9. With a change-over lever 10 pivoted to the upper plate 8 and attached by a spring 13, free from tension as shown in full lines, to the lower plate 9, depressing the cam 12 by an actuating lever a causes the lower plate 9 to grip the column 1 and take over the weight of the load W from the upper plate 8, lifting the casing 3 and the load W, the upper plate 8 taking over the load W at the end of the stroke. The load W may thus be lifted step-by-step by repeated actuation of the lever a. With the actuating lever 10 in the position shown in phantom lines the spring 13 is tensioned, and repeated actuation of the lever a allows the load to be lowered gradually without jolts: downward movement of the lever a locking the lower plate 9 while the tension in the spring 13 unlocks the upper plate 8 allowing the load W to drop a short distance controlled by the compression of spring 14.
Patent GB-1263898-A (GB)
Title: Splined articulated spindle
IPC: B21B35/14
Filed: 1970-01-22
Abstract: 1,263,898. Universal joints. SIEMAG SIEGENER MASCHINENBAU G.m.b.H. 22 Jan., 1970 [22 Jan., 1969], No. 3083/70. Heading F2U.  A gear.type universal joint is continuously lubricated and cooled by oil pumped into an annular channel 10 in a sleeve 8 rigid with the drive shaft 1 and passing by radial shaft bores 12 into axial passages 13, 16, through the gear teeth 3 and into a casing 7 carried on shaft 1 and provided with deflecting rings 21, 22 and a drain pipe 19. The axial passages 13 are provided with restrictions 14.
Patent GB-215096-A (GB)
Title: Improvements in and relating to filament rheostats and other devices having moulded bases
IPC: H01C10/32
Filed: 1923-02-02
Abstract: 215,096. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Feb. 2, 1923. Moulding resistance bases.-A moulded insulating base for supporting a resistance comprising a disc 10 having lips 17 in the bounding planes arranged in staggered relation so as to form a peripheral groove is moulded by pressure at right angles to its plane. The lips 17 may be undercut.
Patent GB-230601-A (GB)
Title: Improvements in scaffold trestles
IPC: E06C1/39
Filed: 1924-07-26
Abstract: 230,601. Knapman, E. G. July 26, 1924. Scaffolding; ladders.-Scaffold trestles of the type comprising hinged legs b and a centrallydisposed vertically adjustable, ladder section a supported by cross-arms g, are provided also with bosses h above the hinges to grip the sides of the ladder section which is further supported by lugs e on the hinged stay c.
Patent GB-1291557-A (GB)
Title: Electro-optical image tracing systems particularly for use with laser beams
IPC: B25H7/00
Filed: 1970-01-22
Abstract: 1291557 Programmed control THOMSON - CSF 22 Jan 1970 [29 Jan 1969] 3258/70 Heading G3N An electro-optical tracing systems employing a laser comprises means for monitoring coordinate displacement of a substrate, a deflection control means, responsive to the monitored displacement, deriving data controlling motors positioning the substrate, and a digital optical deflector connected to and controlled by from the deflection means inserted in the laser beam between its source and the substrate. As shown a light beam from a laser source 1 passes through a deflector device 3, which comprises a double refracting crystal deflecting the beam in digital increments in dependence on the binary state of the potential applied to cells of the device. The light beam impinges on a plate 6 mounted on a table 62 which is positioned by motors 81, 82 and the displacement determined by quadrature laser interferometry sensors 71, 72. A computer 9 has sub-systems 91, 92 responsive to programmes from instruction units 93, 34. The sub-system 92 comprises command counters and controls the motors 81, 82 in dependence on a comparison with the sensed displacement. The sub-system 91 comprises a binary counter each stage of which controls a cell of the deflector device 3. The counter is operative only when a pulse is received from one of the sensors and is blocked when pulses come from the other sensor so that the tracing on the plate 6 is independent on the speed of displacement. The programme from unit 93 commands limit points of a line and the call-up of a sub-routine commanding continuous tracing there between. A digital deflector device 3' is incorporated whereby a spot or elementary pattern is traced by causing the laser beam to scan a hologram. In a modification, (not shown), a semitransparent mirror is inserted in the laser beam, between the deflector device 3 and the plate 6, whereby a separate plate is traced simultaneously together with an optical projection of a pattern by a flash source.
Patent GB-635754-A (GB)
Title: Improvements in abrasive articles and methods of manufacturing them
IPC: C08L27/00
Filed: 1945-02-09
Abstract: A bond for abrasive grains comprises a polymerization product derived from an ester of a dicarboxylic acid and an unsaturated monohydric alcohol or from an unsaturated mixed carbonic acid ester or an ether of an unsaturated monohydric alcohol and a polyhydroxy organic compound.  The resin may also comprise the copolymerization product of a vinyl compound with an ester of a dicarboxylic acid and an unsaturated monohydric alcohol.  In the preparation of the esters, suitable alcohols are allyl, methallyl, crotyl, tiglyl, 2-chlorallyl, propargyl and phenyl allyl alcohols, methyl vinyl carbinol, diphenyl allyl and allene carbinols, 3-chloro-2-butanol-1 and butadiene-1,2-ol-4.  Suitable dicarboxylic acids are phthalic, succinic, glutaric, adipic, oxalic, malonic, sebacic, fumaric, maleic, citraconic, itaconic and vinyl malonic acids, and a terpenemaleic anhydride adduct or styrene-maleic anhydric interpolymer.  A monobasic acid may be mixed with the dibasic acid. Vinyl compounds with which the esters may be copolymerized include vinyl acetate or chloroacetate, styrene, vinyl ketones and ethers, acrylic and methacrylic acids and their derivatives, e.g. acrylonitrile and acrolein, to which may be added non-solvent monomers such as vinyl chloride, coumarone, indene, isobutylene, chloroprene and vinyl acetylene.  Examples of mixed carbonic esters are allyl diethylene glycol carbonate and ethylene or diethylene glycol bis-(allyl carbonate).  Suitable ethers which polymerize to infusible resins are the allyl ethers of sugars, starch, sugar alcohols, polyvinyl alcohol, sucrose, sorbitol, glycerol and alpha-methylene glycoside.  The abrasive material, e.g. alumina or silicon carbide, may be suspended in the monomeric material which is then polymerized; or the esters may first be partially polymerized and ground to a powder, mixed with the abrasive grains and then moulded and cured.  Catalysts, e.g. benzoyl peroxide may be employed. The resins may also be used for coated abrasives, e.g. sandpaper, by applying the liquid ester to a backing, coating with abrasive grains and then polymerizing, followed by a further coating of liquid; or by applying a suspension of the abrasive in the liquid and polymerizing. Inhibitors may be used in these compositions to control the viscosity.  The resins may also be used as an impregnating material within a porous moulded abrasive article.  The resins may be modified by the addition thereto or to the monomers of natural or other synthetic resins, drying oils, fillers, dyestuffs and plasticizers. Specifications 500,547, 540,168, 540,169 and 548,137 are referred to.
Patent GB-992767-A (GB)
Title: Process for electroplating of metals and apparatus for effecting the same
IPC: H01M50/414
Filed: 1963-01-28
Abstract: Metals, especially those subject to oxidation under electrolytic conditions, e.g. Pb, Sn, and Fe, are electrolytically deposited from solutions of their inorganic salts, in a 3-compartment cell 1 formed by two porous partitions 13, 14, the central compartment 11 separating the <PICT:0992767/C6-C7/1> anode 12, and cathode cells 10, the metal salt-solution being introduced into the cathode cell, and water in the anode cell, which flushes the acid formed with hydrogen generated therein into the central compartment, from which it is drawn off with the depleted metal salt solution flowing in from the cathode cell. The rates of flow of water and electrolyte are adjusted so that the partitions prevent migration of ferrous salt into the anode cell. The process may be applied to regenerating spent acid pickle. The porous diaphragms are made of microporous P.V.C. or rubber held between screens.  Vents are provided for the oxygen and hydrogen gases generated.
Patent GB-114149-A (GB)
Title: Automatic Stoker with Moving Dump Plate.
Inventor: RILEY ROBERT SANFORD
IPC: F23K3/12
Filed: 1918-02-26
Abstract: 114,149. Riley, R. S. March 14, 1917, [Convention date]. Grates; mechanical stoking.- Ashes &c. are discharged from the rear end of an automatic grate by movable plates so supported and operated that parts move in substantially horizontal and vertical planes respectively. As shown in connexion with an underfeed stoker of the kind described in Specification 1067/13, the plates 27 are curved in shape, and are pivoted to the rear ends of the reciprocating bars 20, which form the sides of the fuel troughs. The lower end of each plate rests on a roller 29 carried by a bar 28, which can be adjusted to vary the inclination of the plate, or to allow the whole of the ashes &c. to be dumped when desired. The connexion between a plate 27 and bar 20 is made by a sliding shoe 33, Fig. 4, carrying pivot pins 38 for engaging sockets formed in the plate. The pins are carried by blocks 37 movable towards and away from one another on the bar 36, and when they have been engaged in their respective sockets, the blocks 36 are locked apart by a depending web on the nose-piece 41 of the grate section. Between the plates and the bridge wall 11 of the furnace, an ash-crushing and discharging roller 43, rotated intermittently from the fuel-feeding mechanism, may be provided. In a modification, the plates are flat instead of curved, and the rollers 29 are replaced by bearing-plates on the ends of the bars 28. Two automatic grates may incline to a common ash discharge point.
Patent GB-555743-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: B60L7/04
Filed: 1942-03-16
Abstract: 555,743. Automatic control systems. BRITISH THOMSON-HOUSTON CO., Ltd. March 16, 1942, No. 3420. Convention date, March 15, 1941. [Class 38 (iv)'] [Also in Group XXXVII] A traction motor 12 with a series field 26 is supplied during motoring from a generator 10 driven by a diesel engine. During braking the motor armature is connected in a loop with a braking resistor 13 and a current responsive relay 52 and its field 26 is excited by the generator 10 running at idling speed. If the braking current is slightly above normal, relay 52 lifts partly so as to include resistor 71, 72 in circuit with the field 36 of the generator. If the braking current is excessive, due to high vehicle speed, or the institution of braking immediately after running so that the Diesel engine has not dropped to its idling speed the relay 52 lifts fully and reverses the field 36 by connecting it across a bridge of resistors 71, 74, 72, 73. Specification 292,110, [Class 38 (iv)], is referred to.
Patent GB-345030-A (GB)
IPC: H01H1/58
Filed: 1930-01-31
Abstract: 345,030. Binding-posts. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Jan. 31, 1930, No. 3427. Convention date, May 10, 1929. [Class 38 (i).] Terminals, for rotary switches which are mounted on contact-carrying members projecting through the cylindrical switch casing, are formed with the lateral entry for the lead into the terminal block directed towards the wall of the switch casing in order to facilitate the connecting of the leads when the switch itself is mounted within a protective outer casing. Fig. 1 shows a known form of terminal block 1 secured on a contact-carrying member 5 passing through the insulating switch wall 4, the lateral entry 10 for the lead being concealed when the switch is secured within a protective casing 8 as shown in Fig. 2. With terminals 3 constructed in accordance with the invention as shown in Figs. 3 and 4, however, the entry 30 to the terminal 3 through which the lead is introduced before being clamped in position by the screw 31 is directed towards the periphery of the switch casing so that during the connecting up of the switch when mounted within an outer casing as shown in Fig. 3 this lead entry is in view. Moreover, a smaller diameter casing, as indicated by the dotted line, may be employed for a switch with terminals of this type.
Patent GB-1397182-A (GB)
Title: Monitoring arrangements for example in control valves
Inventor: STEHLE K
IPC: F16K31/06
Filed: 1973-01-23
Abstract: 1397182 Magnstic switches CONCORDIA MASCHINEN - UND ELEKTRIZITATS GmbH 23 Jan 1973 [25 Jan 1972] 3448/73 Heading H1N [Also in Division F2] A monitoring arrangement for parts such as valves 2, 3 which are intended to move in synchronism has a magnetic body 19 on each control part 2, 3 arranged with the bodies 19 symmetrical with respect to each other and to respective ends of a centrally pivoted magnetic rod 16 which is arranged to produce a control signal if it is moved from its symmetrical position due to relative movement of the parts 2, 3. The control signal is produced by opening of one of the two sets of contacts 13 on push rods 20 which have biasing springs 21 which with the magnet 17 bias the rod 16 to its central symmetrical position. Once the rod has been tilted the magnetic forces are sufficient to retain it in an extreme position (Fig. 4, not shown). The contacts 13 are in the control circuit of auxiliary control valves 11 for permitting operation of pistons 4 of valves 2, 3.
Patent GB-1004119-A (GB)
Title: Rotary gas compressor
IPC: F04C29/12
Filed: 1963-01-29
Abstract: 1,004,119. Internally-meshing gear-type rotary compressors. FAIRCHILD STRATOS CORPORATION. Jan. 29, 1963 [Feb. 20, 1962], No. 3562/63. Heading F1F. An internally-meshing gear-type rotary compressor including male and female rotors having their axes eccentrically disposed with respect to each other and with the female rotor having one more lobe than the male rotor includes a discharge port profiled so that discharge is immediate but only after a desired pressure in terms of compression ratio has been reached. As shown in Fig. 3, a seven-lobed female rotor 12 rotatably mounted in an eccentric bore in a housing member 10 co-operates with a six-lobed male rotor 15 secured on a driven shaft 16 which is supported in end plates sealingly closing the end faces of the housing member 10. Included in each end plate is an arcuate inlet port 20 and a discharge port 21 profiled as shown in Fig. 5. Points 26, 27 are the centres of the female and male rotors respectively which lie on a line 25 passing through the centre of a space 24, Fig. 3, just filled with gas. FR, Fig. 5, is the radius of the root circle of the female rotor, Ro the outer radius of the male rotor, E the eccentricity, # an angle determined by the compression ratio and N M , N F  the number of lobes on the male and female rotors respectively. The point 40 is determined by the angle N M /N F  #+E, the line 28 by the angle # and the radius R L  equals the lobe radius of the male rotor so that just prior to the discharge port opening, the radius R L  conforms to the profile 41, Fig. 2, of the male rotor.
Patent GB-627534-A (GB)
Title: Improvements in thermal responsive electric switches
IPC: H05B41/08
Filed: 1947-02-06
Abstract: 627,534. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd., and BIRD, A. E. Feb. 6, 1947, No. 3573. [Class 38(v)] A glow - discharge or other thermal switch has its contact elements formed as a rigid structure and contained in a glass envelope in the side wall of which the lead-in wires are sealed. The contact structure is formed by two metal rods 7, 8 spaced apart by insulating discs 9, 10 closely fitting the envelope 1, the rods passing through holes in the discs. The longitudinal spacing of the discs is maintained by metal clips 11 which engage in notches in the discs and are welded to the rods. A U-shaped bimetallic strip 14 is supported by rod 7 and has a contact which co-operates with the rod 8. In manufacture, the contact structure is placed in the envelope 1, as shown, and the lead-in wires 15 are bent over the open rim. The rim of a glass sealing tube of the same diameter as the envelope is brought into contact with the rim of the envelope and the rims are fused together, so sealing the lead-in wires in position in the side wall. The insulating discs may be coated with aluminium paint to facilitate the starting of the glow-discharge in the dark.
Patent GB-1478357-A (GB)
Title: Haptene derivatives of estrogens processes for preparing them and methods of preparing antigens from them
IPC: C07J41/00
Filed: 1974-06-18
Abstract: 1478357 Steroid 7-oximes and semicarbazones ROUSSEL-UCLAF 18 June 1974 [18 June 1973] 03645/77 Divided out of 1478356 Heading C2U [Also in Division C3] The invention comprises compounds of formula (wherein X is oxo or (H, #-OH), and R<SP>2</SP> is =NZ(CH 2 ) c CO 2 H, where Z is -O- or c is 1-8, and the group (CH 2 ) c  is straight or branched); and their preparation from 7-oxoestradiol by reaction with H 2 NZ(CH 2 ) c CO 2 H or a salt thereof, followed when required by oxidation at position 17. In Example 4 a compound I is then salified with triethylamine. Compounds I may be coupled with bovine serum albumin by the mixed anhydride method, and the resultant conjugates used to prepare antibodies which are used in the determination of estrone and estradiol in body fluids.
Patent GB-1291331-A (GB)
Title: Concrete pump assemblies
IPC: F04B15/02
Filed: 1970-01-26
Abstract: 1291331 Reciprocating pumps and motors MORGEN MFG CO 26 Jan 1970 [27 Jan 1969] 3649/70 Heading F1A A concrete pump assembly 11 comprising a pair of piston and cylinder pumping units, 37, 38, a hopper 55 for receiving concrete and supplying it to the pumping units, and valves for controlling the pump delivery, is mounted on an I-section beam 21 which is pivoted at 29 to the trailer of a truck 13 and is moveable about the pivot between a lower operative position and a raised transport position by means of a hydraulic jack 32, 33. A pair of ball valves 57, 58 control the flow of concrete from the hopper 55 to the pumping units 37, 38 respectively, and from the latter to outlets 53, 54. The pump pistons 39, 41, are actuated through rods 46, 47 by doubleacting hydraulic motor pistons 44, 45 which reciprocate 180 degrees out of phase, and at the end of a stroke, one of a pair of rods 48, 49 connected to the motor pistons 44, 45 respectively. reverses a switch 69 via a lever 70, actuating a slide valve 102 Fig. 5 to reverse pressure and exhaust connections to a pair of double-acting hydraulic reciprocating motors 59, 60 which change over the ball valves 57, 58. One of the ball valves has a pair of control arms, 65, 66, attached thereto, one of which, when the ball valve reaches its new position actuates a switch 67, thus actuating a slide valve 89 reversing the pressure and exhaust connections to the motor cylinders 42, 43 thus reversing the strokes of pump pistons 39, 41. Hydraulic pressure is supplied by a pump 76 driven by the truck engine via a drive shaft 78 and a clutch 79 and exhaust fluid is returned to a sump 77. The three parts of the hydraulic control circuit, i. e. for controlling the ball valves 57, 58, for controlling the motor pistons 44, 45, and for raising and lowering the beam 21, are each connected to the pump 76 and sump 77 via manually operable valves 95, 83, 107 respectively.
Patent GB-1044565-A (GB)
Title: High impact polystyrene and method of making same
IPC: C08F279/02
Filed: 1964-01-28
Abstract: High impact polystyrene is made by incorporating in 100 parts of polystyrene at least one part of an amorphous 1,4-enchained polybutadiene which has a molecular weight distribution such that at least 75% by weight thereof lies within a range of two units of inherent viscosity.  The polybutadiene may be incorporated in the polystyrene either by blending the two polymers directly or by dissolving the polybutadiene in styrene monomer, and then polymerizing the solution, preferably in a two-stage process carried out in bulk in a prepolymerization stage followed by polymerization of the prepolymer in aqueous suspension.  The polybutadiene used preferably has a trans-1,4-isomer content in excess of 50%.
Patent GB-552833-A (GB)
Title: Improvements in and relating to pit props
IPC: E21D15/18
Filed: 1942-03-20
Abstract: 552,833. Pit-props. JONES, W. O. March 20, 1942, No. 3697. [Class 20 (ii)] A pit-prop of the type in which a plunger member 5 is supported on sand, gravel, coal &c. 13 contained in a barrel member 7 the lower end of which is closed by a plug 8, and controlled apertures are provided for the escape of the debris to allow removal of the prop, has the upper end of the plug provided with a single tapered surface 9 to guide the debris towards a single aperture 11. The aperture may be closed by a plug 12, or by a sleeve with an internal projection to engage over the aperture, and locked into position by a wedge.
Patent GB-688201-A (GB)
Title: Improvements in or relating to the heating of viscous liquids
Inventor: COX MARTIN
IPC: F23K5/20
Filed: 1949-02-10
Abstract: 688,201. Heating viscous liquids. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. March 27, 1950 [Feb. 10, 1949], No. 3725/49] Class 64 (iii), [Also in Groups XXVI and XXVIII] In a method of heating a viscous liquid (e.g. fuel oil) by pumping it through a recuperative heat-exchanger, some of the heated liquid is pumped through a closed circuit to mix with cold fluid passing to the heatexchanger at a rate of flow such that due to the preheating of the cold liquid and consequential reduction of viscosity of the liquid passing through the heat exchanger, the total pumping energy required is substantially less than that which would be required to pump the liquid through the heat-exchanger without such preheating. In the apparatus shown for carrying out the method, fuel oil is forced by a primary pump 2 through a duct 3 and a recuperative heatexchanger 1, some of the oil being returned from the outlet to the inlet of the heat-exchanger by a circulating pump 4 arranged in a duct 5 parallel with the duct 3. An auxiliary heater 8 may be provided in the duct 5 for additionally heating the oil when starting up and a mixer 9 may be included at the point where the circulating flow re-enters the main flow. If the pump 4 is a centrifugal pump, a by-pass 6 is provided having a pressure operated valve 7, a non-return valve 7a being incorporated in the duct 5.