baber/WOPTO huggingface dataset:
Patent GB-692263-A (GB)
Title: Improvements in turning attachments for automatic machine tools
IPC: B23Q5/22
Filed: 1950-05-11
Abstract: 692,263. Lathe details. AUTO & CAPSTAN PRODUCTIONS, Ltd., and SPEARS, E. J. July 13, 1951 [May 11, 1950], No. 11720/50. Class 83 (iii). A turning attachment for automatic machine. tools comprises a tool-holding auxiliary slide detachably mounted on the permanently fitted cross-slide of the machine to have a movement longitudinally thereof, a reciprocating bar mounted at the outer end in a bearing detach. ably mounted on the machine frame, an arm on the bar coacting with the auxiliary slide to reciprocate it and means coacting with the cam-shaft controlling the sequence of operations of the machine for reciprocating a shaft to which the bar for conveying reciprocatory movement to the auxiliary slide is coupled. A base-piece 9, Fig. 2, carrying an auxiliary tool-holding slide 11 is secured to the usual cross-slide 10 by bolts 13 and a clamping member 14 which allows a limited amount of rotational adjustment effected by screws 17. The slide 11 carries a roller 12 on its upper surface which engages a groove 8 in an overhead member 7. The latter is secured to a rod 3 parallel with the machine axis which is slidable at one end in a bracket 5, Fig. 1, secured to the machine frame. The other end of the rod 3 is coupled through a member 1 to a shaft 2 which is reciprocated from the main feed cam of the machine.
Patent GB-1019565-A (GB)
Title: Process for preparing glycidyl ethers of polyhydric phenols
IPC: C07D301/28
Filed: 1964-03-19
Abstract: Glycidyl ethers of polyhydric phenols are prepared by reacting a polyhydric phenol with an epihalohydrin in the presence of a sulphonium salt of the formula <FORM:1019565/C2/1> wherein X(-) is a monovalent anion and R1, R2 and R3, which may be the same or different, are C1-C12 alkyl groups, an o -hydroxy-alkyl group of up to four carbon atoms which may be interrupted by hetero atoms, a cyanoethylated hydroxyalkyl group, an epoxypropyl group, an aralkyl group, a cycloalkyl group or an aryl group, and reacting the product with an alkali to form a glycidyl ether.  The sulphonium salt may be formed in situ by adding simultaneously to the reaction mixture an epihalohydrin and an aliphatic thioether or mercaptan or an alkali metal or ammonium sulphide.  In examples the preparation of the glycidyl ethers of 4,41 - dihydroxydiphenyl - dimethyl - methane, dibutylene glycol - bis - (p - hydroxybenzoate), pyrocatechol and 4,41-dihydroxydiphenyl-sulphone is described.
Patent GB-1293455-A (GB)
Title: Improvements relating to conveyor belt fasteners and the like
Inventor: HOLDING JOHN
IPC: F16G3/08
Filed: 1970-03-11
Abstract: 1293455 Belt fasteners ISAAC JACKSON (FASTENERS) Ltd 7 May 1971 [11 March 1970] 11728/40 Heading F2Q In a belt fastener comprising a plurality of pairs of plates 1 which bridge the belt ends A, B and are drawn together by means of studs 4 and nuts 5, a flexible pin P made of high tensile material is located between the belt ends and terminates short of the belt edges. The ends of the belt are chamfered and the pin P is laid in the groove created by these chamfers. The plates 1 are provided with pairs of teeth 3 and countersunk recesses for receiving frusto-conical heads of the studs 4 and the nuts 5. Radial lugs 6 prevent rotation of the nuts 5.
Patent GB-600209-A (GB)
Title: Improved process for extracting active principals from animal or vegetable materials
IPC: B01D11/02
Filed: 1945-05-10
Abstract: A process for extracting active principles from animal or vegetable materials or organs containing physiologically active substances, comprises immersing the starting material in a liquid having a dissolving action on one or more of the active principles of the material to be treated and cooling at a temperature lower than the temperature of critical fragility of the material (i.e., a temperature at which the material is sufficiently fragile to permit crushing or grinding), removing the material remaining after extraction, eliminating water therefrom under vacuum at a temperature below 0 degrees C., extracting separately the active principles by evaporating the solvent, and grinding the remaining material containing all other substances. The cooling and dissolving liquids specified are: normal butane, pentane, hexane, chloroform, toluene, ether, and methyl and ethyl alcohols.ALSO:A process for extracting and fixing in the form of a dry powder active principles from animal or vegetable materials or organs containing physiologically active substances, comprises immersing the starting material in a liquid having a dissolving action on one or several of the active principles of the material to be treated and cooling at a temperature lower than the temperature of critical fragility of the starting material (i.e. a temperature at which the material is sufficiently fragile to permit crushing or grinding), removing the material remaining after the extraction, eliminating water therefrom under vacuum at a temperature below 0 degrees C., extracting separately the active principles by evaporating the solvent and grinding the remaining material containing all other substances.  The cooling and dissolving liquid, such as one or more of the following: normal butane, pentane, hexane, chloroform, toluene, ether, methyl- and ethyl-alcohols, may be evaporated either under substantially atmospheric pressure and at a temperature only slightly above 0 degrees C., or at substantially -10 degrees C., under an absolute pressure less than 0.7 atmosphere.
Patent GB-1217381-A (GB)
Title: Inflatable tubular bodies
Inventor: RICH STANLEY ROBERT
IPC: F16L11/04
Filed: 1968-03-11
Abstract: 1,217,381. Gripping devices. S. R. RICH. 11 March, 1968 [10 March, 1967], No. 11857/68. Heading B8H. [Also in Division G1] A gripping device, Fig. 7, which may be shaped like a hand, comprises flexible tubes 151-156 each reinforced along one side by flexible but inextensible strips 112.4, and 113- 116. When fluid under pressure is admitted to the tubes through a conduit 71 the tubes bend with the strips on the inside of the curve thereby enabling an object to be gripped. Fig. 8 shows a gripper in which an arm 82 bends towards two similar arms 84, 83 (not shown) to grasp an object 95. Each arm comprises a closed tube 158 with an inextensible strip 118. Fig. 8B shows a modification in which one movable arm 158 co-operates with a fixed arm 80.5. Fig. 1D (not shown) illustrates how the tubes are made laterally inextensible by wrapping with cord 14. By attaching the inextensible strip helically to the tube the latter will adopt a helical configuration under pressure. A discontinuous strip will produce compound bending under pressure, Fig. 6 (not shown). Fig. 10 illustrates a further construction in which restraint is applied along one side of a corrugated tube by a strip 173. Fig. 12 shows a form of strip 181 which resists lateral deflection of the tube during bending. This form may be incorporated in a two armed gripper, Fig. 13 (not shown). In all the embodiments a reduction in pressure below atmospheric will produce bending in the opposite direction.
Patent GB-417137-A (GB)
Title: Improvements in dynamo-electric machines
IPC: H02K23/20
Filed: 1933-04-24
Abstract: 417,137. Exciting dynamo electric machines. WHEELER, H. D., and MOSSAY, P. A. H., Gothic Works, Norwich. April 24, 1933, No. 11939. [Class 35.] A continuous-current machine has an auxiliary winding on all the main poles connected between a main brush and an auxiliary brush which is located approximately mid-way between a main pole and an interpole, an approximately series effect being thereby obtained. In the form shown, the main poles M carry in addition to the series winding 5 and shunt winding 4 an auxiliary winding 8 connected between main brush 1 and the auxiliary brush 7 and the main brushes may be adjustable. The auxiliary poles A carry a winding 3 but either of the windings 4, 5 may be omitted. In a modification, the shunt winding 4 is connected between brushes 2 and 7.
Patent GB-291023-A (GB)
Title: Improvements in devices for ascertaining the angular velocity of a shaft, coupled to a sighting device
IPC: F41G5/00
Filed: 1928-04-24
Abstract: 291,023. Naamlooze Vennootschap Nederlandsche Instrumenten - Cie. May 24, 1927, [Convention date]. Telescopic observations for measuring speed.- A device for ascertaining the angular velocity of a shaft which is coupled to a sighting device for pursuing a movable target is provided with an arrangement for recording the angular velocity in respect to time. The telescope 1 is rotated in azimuth to keep bearing on the target by means of a handwheel 2, gear 3, and worm 5, the shaft 4 of which is connected to a tacheometer 6, which moves the indicating needle of a speedometer 7 and a guided rod 10 proportionally to the angular velocity of the shaft 4. The shaft 10 moves at right-angles to a travelling strip 13 and carries a pencil 22 bearing on the underside of the strip, which is driven from a clock 17 and is ruled with lines 21 at equal intervals. The pencil traces a velocity-time curve on the strip. A rod 46 having a central transparent portion on which is ruled a line 49 is pivoted to a nut 24 at one end and is slotted at the other end to engage a pivot 48 on a nut 23. The nut 24 is moved by a handwheel 29 and screw 27, which also drives through bevels 30 a shaft 31 and bevels 32, 33, of which the wheel 33 is, together with a wheel 35 on a body 34, rotatably supported on the spindle 25. The shaft 25 is curved at the end 37 and supports a planet wheel 36 gearing with wheels 34, 38, which latter wheel is in one with a wheel 40 gearing with a wheel 41 on a screw operating a guided nut 43 having an index 50 moving over a scale 51. The screw is fitted with a handwheel 44. By adjusting the handwheels 29, 44, the rod or rule 46 may be inclined so that the line 49 lies along the general direction of the curve at an angle " a," the tangent of which represents the acceleration, and as the distance between screws 25, 27 is constant, the distance apart of the nuts at right-angles to this dimension, and consequently the movement of the index 50, is proportional to the acceleration and is indicated on the scale 51.
Patent GB-960939-A (GB)
Title: Method for the preparation of primary amines
IPC: C07C209/52
Filed: 1962-03-29
Abstract: Aliphatic, alicyclic and arylaliphatic primary amines are prepared by reducing alkoxyethylidene compounds of the formula: <FORM:0960939/C1/1> wherein R represents an aliphatic, alicyclic or arylaliphatic radical and R1 represents an alkyl radical, with sodium or zinc amalgam in an acidic medium such as a hydrochloric, sulphuric or glacial acetic acid medium.  The alicyclic radical may be a steroid radical. In the examples benzyl-, methyl- and ethyl-amine, 1-amino-2-methyl-propane, 1-aminopentadecane, aminocyclohexane, 17b -amino-androst-5-en-3b -ol, 17b -amino -5a - androstan -3b - ol, 16a -methyl-17b -amino-5a -androstan-3b -ol and the corresponding 3b -acetoxy compounds of these 17b -amino compounds, and 16a - and 16b -methyl-17b -amino-androst-5-en-3b -o are prepared. Alkoxy-ethylidene compounds of the formula: <FORM:0960939/C1/2> wherein R and R1 have the above significance, are prepared by reacting ketones of the formula CH3COR with hydrazoic acid in an alcohol in the presence of hydrogen chloride gas.
Patent GB-108901-A (GB)
Title: Improvements in Instep Arch Supports.
Inventor: WOOSNAM ARTHUR
IPC: A43B7/22
Filed: 1916-08-26
Abstract: 108,901. Woosnam, A., (Scholl Manufacturing Co.). Aug. 26, 1916. Foot arch supports.-Provision is made for supporting, to a variable extent, the transverse arch of the ball of the foot. A metal base-plate 10 projects below a longitudinal arch plate 11 and spans from a point 12 adjacent to the heel of the foot to a point 13 in rear of the head of the metatarsal bones, the transverse curvature increasing from the broad ends, where it is least, to the narrowest portion at the waist 10<a>, where it is almost semicircular. The broad front end 14 affords a bearing below the metatarsal bones and extends forward as a central tongue 15, being humped or convex upwards at the part 20 just before the end, and the hump provided with slots 21 dividing it into strips 22 capable of being distorted to fit the plate to the wearer's foot. The longitudinal arch plate 11 has its rear end 25 in front of the corresponding edge of the base-plate, is shaped generally to the under surface of the foot, and at its forward end 26 is made to conform to the base of the hump 20. Transversely, it is turned up at its inner edge into a wing 27, and the two plates are connected at their rear by rivets 30, 31, but are free for relative movement at the points of contact 'n front. The usual leather cover-piece 32 is secured by the rivets 30, 33 to the longitudinal arch plate- The recesses 16, 16<1> of the central tongue give freedom to the joints of the great and little toes.
Patent GB-130154-A (GB)
Title: Improvements in Apparatus for Removing Flax and like Seeds from the Stalks of Plants.
Inventor: LEITCH FREDERICK JOHNSTON
IPC: D01B1/12
Filed: 1918-07-25
Abstract: 130,154. Leitch, F. J. July 25, 1918. Thrashing - machines.- For detaching and collecting the seed pods, stalks of flax or other plants are carried in a curved path practically tangential to the curved path of combing- elements of a stripping-device, the two paths being in different planes and thus diverging at an accelerating rate. The carrier comprises an horizontal corrugated drum 15, driven by hand or power, and endless belts 13, which are guided by carrier pulleys around a portion of the circumference of the drum, the stalks being gripped between the belts and the depressions of the drum and bent over the ridges. The stripper, in the form shown in Fig. 2, is a toothed or crown wheel 20, which rotates in a vertical plane, oblique to the axis of the drum and driven therefrom by pegs 17, on a disk 16, which successively engage the spoke-like margins of openings in the wheel. In the form shown in Fig. 6, the stripper is an endless chain 24, carrying a single row oi teeth and driven by a sprocket-wheel, on the spindle of which is a pulley 28 driven by a band from a pulley 26 The chain carries anti-friction bowls, which, at the operative portion of the path of the chain, engage fixed curved guide-bars 32. The stalks are laid on the top of the drum 15, so that the head ends are supported and guided by a bent rod 23, Fig. 2, and the seed pods are thus led between the teeth of the stripper, and successively detached by a combing-action and dropped into a receptacle, whilst the stalks are carried under the drum and delivered by the belts over the pulleys 12.
Patent GB-1486362-A (GB)
Title: Interface module for a digital data transmission system
IPC: H04L12/40
Filed: 1975-03-24
Abstract: 1486362 Digital data transmission SINGER CO 24 March 1975 12165/75 Heading H4P [Also in Division G4] An interface module 10 is provided for coupling a subsystem, e.g. a computer, a remote terminal, a sensor or an output device of a digital data transmission system to a data link P, the module being operable in either a "receive" or a "transmit" mode; in the "receive" mode multisection control words and data words are decoded 108, 110, 112 and the different sections of the control words are directed by means of logic circuitry to different ones of a set of logic elements 120, 122, 124 and 126 coupled in parallel to a common bus 114 leading from the decoder. Each control word has the format illustrated in Fig. 3 (not shown), and includes an address portion which is used to select the required subsystem by means of a comparator 150 coupled to the address register 120, and a word count portion which is used in conjunction with a word counter 152 coupled to the word count register 122 to indicate how many data words are to be expected following a control word. A single bit of each control word is fed to register 124 to set the module in either the "receive" or the "transmit" mode. The entire control word is stored in register 126, and the data words are stored in an I/O register 128. Further registers 130, 132 are provided for conventional checking and testing purposes, and a parity checking circuit 116 is also provided. The logic circuitry for dividing the control words into their various sections includes a read-only memory 134 controlled by timing signals from a timebase generator 176 and a counter 178. When the module 10 is set to its "transmit" mode, data words from I/O register 128 and portions of control words from the logic elements 120, 122, 124 and 126 are fed via a common bus 156 to be encoded 160, 162 and 164 and then sent via a pulse shaper 170 and amplifiers 172, 174 to the data link P for transmission. A plurality of interface modules such as 10 are coupled in parallel (Fig. 1, not shown) so that, in the event of failure of a logic element of a module, a suitable logic element of another module may be substituted therefor by means of selector circuits such as 10a, 10b. Each interface module is constructed using three integrated circuit chips 100, 102 and 104.
Patent GB-494730-A (GB)
Title: Improvements in and relating to the production of light concrete bodies
IPC: C04B41/47
Filed: 1937-04-29
Abstract: 494,730. Bitumen-cement compositions. RAAB, J. April 29, 1937, No. 12209. Convention date, Sept. 19, 1936. [Class 22] Light concrete made of a binding agent such as cement and grains of cellular or porous material such as pumice or frothed blastfurnace slag (with or without a filler such as trass) is impregnated with hot bitumen or asphalt under a pressure of at least three atmospheres above the saturation pressure (at the temperature of the bitumen &c.) of the water vapour present in the cells of the pumice &c., then the pressure is lowered for a short period below the saturation pressure and finally restored again. By this means the water in the cells of the pumice &c. is vaporized and when the pressure is lowered the vapour bursts the cell walls ; on restoring the pressure the cells are partly or wholly filled with bitumen &c. It may be necessary to repeat the cycle several times. If blastfurnace slag is used in making the concrete, the slag may be soaked in water under pressure before use. The Figure shows apparatus for carrying out the invention, the bitumen &c. being heated, e.g. by a coil f, in a vessel e and alternately transferred to and blown out of (by compressed air via pipe h) a vessel c containing concrete bodies a, pressure being released from c via a pipe m.
Patent GB-974209-A (GB)
Title: Magnetic recording and reproducing television signals
IPC: G11B15/62
Filed: 1963-03-28
Abstract: 974,209. Feeding television tapes; reducing wear. LOEWE OPTA AG. March 28, 1963 [April 11, 1962], No. 12248/63. Heading G5R. A helical-wrap television tape 1 is tensioned about the guide cylinder 8 during record/playback and during fast winding by a solenoid-operated pin 12 but the tension is relaxed automatically when feeding is stopped to prevent head and tape wear. To allow appropriate time-delays for halting the tape, a conventional three-motor tape-feed system is used with the capstan motor M1 receiving the full supply voltage and the reel motors M2, M3 a reduced voltage for take-up and feed-tension purposes and one of them the full supply voltage for fast winding. On record/playback, capacitor C1 charges fully via D1 and capacitor C2 charges parially according to the higher of the voltages available through D2 or D3. On fast winding, C2 charges fully via D2 or D3 and charges C1 additionally via D4. The time constants C1. R and (C1 + C2). R are related to the time taken for record/playback or fast feeding to halt. To monitor a stationary tape in known manner, a push-button 23 may be pressed to tension the tape temporarily about the guide cylinder 8.
Patent GB-803743-A (GB)
Title: Improvements in or relating to metal frames
Inventor: FENNELL FRANK THOMAS
IPC: B21D53/74
Filed: 1956-04-21
Abstract: 803,743. Making mattress frames; angular bending; bolted points. BRYANT & SONS, Ltd., C. April 23, 1957 [April 21, 1956], No. 12263/56. Classes 83 (2) and 83 (4). flanges 5 of the strip, joggling the metal bordering one side of the strip at 10 so that a portion is displaced out of the plane of the remainder of the flange 5, undercutting the opposite edge 8 of the slit 6 from the free edge to the root of the flange, and bending the other flange 7 in the vicinity of the joggle to take the undercut edge into overlapping relationship to the displaced portion. A hole 11 is formed in the displaced portion of the flange 5 and a hole 12 in the flange 5 adjacent the undercut edge 8. A bolt 14 is passed through the holes when the anglesection is bent. To make a frame for a wire mattress two U-shaped members 1, 2 are formed by bending two lengths of angle-section at spaced positions 3, 4 therealong. Both flanges 5, 7 at one end of each U member 1, 2 are joggled at 16, Fig. 6, a hole 18 is formed in one displaced flange portion 17 and a hole 19 in the corresponding flange 5 of the unjoggled end of the other U-member. The U-members are then assembled to form a frame and are secured together by bolts 20 passing through the holes 18, 19.
Patent GB-118445-A (GB)
Title: Improvements in or relating to Electric Motors Coupled with Compressors or Pumps.
Inventor: STURGESS WILLIAM JETHRO
IPC: H02K7/14
Filed: 1917-08-27
Abstract: 118,445. Sturgess, W. J. Aug. 27, 1917. Motors, cooling.- The shaft 1 of the motor 2 is hollow throughout its length, and screw vanes 5 for forcing air or liquids through it are arranged in the driving-pulley.
Patent GB-1433090-A (GB)
Title: Carbon containing laminated composite brake disc
IPC: B32B7/08
Filed: 1974-03-20
Abstract: 1433090 Laminated carbonaceous brake discs GOODYEAR TIRE & RUBBER CO 20 March 1974 [20 Dec 1973] 12315/74 Heading B5N A brake disc element comprises a reuseable base element 10 of lightweight carbon-based material, said element having a bulk density of at least 1À4 grams per c.c., a flexural strength perpendicular to the lamina of at least 9000 pounds per square inch, an interlaminar shear strength of at least 1000 pounds per square inch, and an impact strength perpendicular to the lamina of from 10 to 50 pounds per inch, and a lightweight carbon-based facing material 12, 14 attached to at least one face of the base element to form at least one wear plate, said facing material having a maximum wear rate of 0À0009 inches per face per braking stop and a minimum friction coefficient of 0À10, both at disc loadings of 40,000 foot pounds per pound. The facing material may be attached to the base element by adhesive layer(s) 16, 18; alternatively, as described with reference to Fig. 2 (not shown), the facing material may be riveted to the base element. The adhesive may be a graphite cement or carbon paper or carbon or graphite cloth impregnated with a furfural rosin optionally admixed with a catalyst, e.g. maleic anhydride. In producing a brake disc element comprising an adhesive, the assembly of components may be initially baked in an oven or under pressure (e.g. 200 to 2000 lbs. per sq. inch) in a press at a temperature of from 200 to 500 F., a second bake being effected, e.g. at from 2000 to 3000 F. to pyrolize the adhesive.