baber/WOPTO huggingface dataset:
Patent GB-590666-A (GB)
Title: A machine for gauging the helix of helical toothed gear wheels
IPC: G01B5/20
Filed: 1944-12-15
Abstract: 590,666. Gauging toothed gears. GEAR GRINDING CO., Ltd., and ORCUTT, A. H. Dec. 15, 1944, No. 25219. Addition to 550,063. [Class 106 (ii)] A machine for gauging the helix of helically toothed gear-wheels comprises a horizontally slidable carriage, a horizontal bar movable endwise at right angles to the movements of the carriage and positively connected to a spindle for imparting angular movements to the toothed wheel to be examined, adjustable means on the carriage for actuating the bar, a feeler supported by the carriage and adapted to bear on one side of a tooth of the wheel, and means for indicating the deflection of the feeler. The gear-wheel under test is mounted on a mandrel between a headstock c and a tailstock d and is adapted to rotate with a spindle f which is coupled to a sliding bar e by means of three flexible metal strips g, one of which is wound on the spindle in an anticlockwise direction and attached to the sliding bar by a block h, the other two being wound clockwise and attached to the bar by a tensioning device l. A weight z tends to rotate the spindle f and so urges a roller r on the bar e against an abutment q on a carriage b slidable at right angles to the bar. The abutment q is adapted to be adjustably rotated to an angle corresponding with the helix of the gear under test and therefore, as the carriage b is moved along by a screw-and-nut device 3, 2 operated by a hand wheel 6, the abutment q pushes the bar e endwise, thereby rotating the spindle f and the gear-wheel under test. A feeler w co-operating with a dial gauge x mounted on the sliding carriage, contacts the helical surface of the gear tooth and indicates any irregularities.
Patent GB-693451-A (GB)
Title: Improvements in combination domestic sink and washing copper or washing machine unit
IPC: D06F39/00
Filed: 1950-10-17
Abstract: 693,451. Washing-appliances; wringers. DEAN, D. Jan. 16, 1952 [Oct. 17, 1950], No. 25225/50. Class 138 (ii). In a combination sink and washing copper or washing machine unit having a sink A and copper B arranged end to end with wringing rollers C pivoted on brackets c attached to the common wall a of the unit, a pivoted water inlet pipe a<SP>1</SP> common to both sink and copper, and a lid for the copper forming a draining board when the copper is not in use, an electric motor B<SP>1</SP> arranged below the copper B drives a downwardly inclined agitator B<SP>2</SP> supported by an inclined boss b<SP>4</SP> on one wall of the copper. The agitator B<SP>2</SP> is in the form of a disc with radial ribs pressed therefrom, Fig. 6 (not shown), and is driven through a pulley universally mounted on a spindle b<SP>3</SP> extending through the boss b<SP>4</SP>. Hot and cold water valves b feed to the'common inlet a<SP>1</SP>. The wringer C may be moved to an inoperative position inside the copper B, the wringer handle c<SP>1</SP> being formed as two hinged parts. The wringer may alternatively be power driven. Drain pipes a<SP>2</SP> and b<SP>1</SP>, Fig. 3, may be opened and closed by rotary valves controlled by taps a<SP>4</SP> and b<SP>2</SP>, Fig. 2, on the front of the unit. A gas ring or electric heater (not shown) may be provided for heating the water in the copper.
Patent GB-695813-A (GB)
Title: Recovery of rubber from latex skim
Inventor: PATON FREDERICK JAMES
IPC: C08C1/10
Filed: 1950-10-17
Abstract: Rubber of improved quality is obtained from latex skim by digesting the skim with a proteolytic enzyme to decompose proteinaceous materials, acidifying, and recovering the resulting rubber coagulum. The enzyme may be trypsin or papein in an amount of 0.01 to 0.025 per cent. based on the weight of the skim. Digestion is preferably effected at 25-40 DEG C for 12-48 hours and in the presence of about 0.05 per cent. of ammonium or sodium polychlorophenate and excess ammonia.  Coagulation may be effected with formic acid.
Patent GB-1535903-A (GB)
Title: Engine block module
IPC: F01P3/20
Filed: 1977-06-16
Abstract: 1535903 Engine blocks VOLVO PENTA AB 16 June 1977 [16 June 1976] 25242/77 Heading FIB Cast engine block modules containing cooling water passages 52, 56 and exhaust manifold passages 57 are arranged to be connected at their endfaces to similar units, to form multiple cylinder units or at their crank-case facing surface to form V or boxer type engines. End-plates 52, 42 are arranged to appropriately seal and direct flows of liquid and gas. Various combinations of blocks for two stroke engines are illustrated and described, gas transfer passages being provided therein.
Patent GB-1110332-A (GB)
Title: Molding of foamed thermoplastic articles
Inventor: ANGELL RICHARD GORDON
IPC: B29C44/42
Filed: 1965-06-15
Abstract: 1,110,332. Injection moulding foamed thermoplastic materials. UNION CARBIDE CORPORATION. 15 June, 1965, No. 25300/65. Heading B5A. A mixture of a foamable thermoplastic material and a blowing agent is first fed to an expanding accumulation zone 35 while maintained above the temperature and pressure at which foaming occurs, and then forced (by a piston 11) into a mould 24, 25 in which the mixture foams and expands; finally communication between the mould and zone 35 is cut off at a point 36 where the pressure is above the foaming pressure of the mixture, and the mixture between this point and the mould is forced rapidly into the mould (by a rod 27). As the mixture is fed by an extruder 6 into the zone 35 the piston 11 rises against fluid pressure acting on a piston 14 at 15, until a switch 17 is operated to supply pressure through 29 to raise a piston 28 and the rod 27. Piston 11 then descends, forcing the material through 21, 23 into the mould until a switch 16 is operated to supply pressure through 30 to force piston 28 and rod 27 downwardly. A fluid blowing agent is admitted through a line 7 containing a valve 8. In a modification (Fig. 2, not shown) the rod 27 is coaxial with the pistons 11, 14 and mounted for sliding movement in a bore in these pistons and the shaft 12. The invention is used for moulding articles having a cellular core (42), Fig. 4 (not shown), and a dense shell (40), many examples being given e.g. containers of all kinds, shoe lasts, handles, car seats, furniture, conduits and bowling pins. The material used may be polythene, polypropylene, polystyrene, acrylonitrile-butadiene-styrene polymers, vinyl resins, nylons, polycarbonates, polyhydroxyethers, and polyarylene polyethers. Fig. 5 (not shown) illustrates the male part of a suitable mould having primary distributer channels (51 ... 54) extending radially from the inlet (50) and secondary distributer channels (55).
Patent GB-628210-A (GB)
Title: Improvements in wireless receiving systems for carrier shift telegraphy
IPC: H04L27/16
Filed: 1947-09-17
Abstract: 628,210. Frequency modulation; automatic tuning control. HILL, R. F. Sept. 17, 1947, No. 25356. [Class 40 (v)] A radio receiver for frequency shift telegraph signals comprises a local oscillator and a first . mixing stage, and a further oscillator which supplies energy at the intermediate frequency to a second mixer stage which is also fed with the intermediate frequency from the first mixer stage, the resultant output from the second mixer stage being used to control the frequency of the local oscillator. In the figure, energy from aerial 1 is applied after amplification, to mixing stage 3, together with energy from a local oscillator 4. The output from mixer 3 is applied via intermediate frequency amplifier 5 and limiter stage 6, to a second mixing stage 7, together with energy at intermediate frequency. from another oscillator 8, which is crystal controlled. The output from mixer 7 is applied through a low-pass filter 10 to a thermionic reactance 11 to control the frequency of oscillator 4. The arrangement compensates for frequency drift and also varies the local oscillator during signals such that the " mark " and " space " intermediate frequencies are the same, thereby enabling a narrow pass-band intermediate frequency filter to be used. Automatic searching for signals is provided by means of a saw-tooth generator 12 which is coupled to reactance 11, and is controlled by a voltage from rectifying unit 13, such that oscillator 12 stops operating on receipt of an incoming signal. The output from filter 10 is applied directly, and also through a long time constant circuit 16, to a double triode valve 15, such that the slowly varying D.C. voltage from filter 10 is balanced in the combined output circuit of valve 15, whereas the fluctuation of voltage due to the keying signals produce an output which operates relay 18.
Patent GB-742622-A (GB)
Title: Improvements in or relating to electrically-heated water supply systems
IPC: F24H1/10
Filed: 1953-09-14
Abstract: 742,622. Electric water heaters. ENDACOTT, A. G. Sept. 14, 1954 [Sept. 14, 1953], No. 25372/53. Class 39(3). A water container in the form of an L has an immersion heater 7 accommodated in its horizontal limb 4 to which a cold water supply pipe 10, 13 is connected. A tap 12 in the pipe is controlled by a handle 17 mounted on a wash basin 2 into which a pipe 19 discharges hot water caused to flow from the top of the vertical limb 3 of the container when cold water is allowed to flow into the limb 4 of the container.
Patent GB-1344723-A (GB)
Title: Cameras
IPC: G03B17/42
Filed: 1971-04-19
Abstract: 1344723 Photographic cameras AGFAGEVAERT A G 19 April 1971 [26 March 1970] 25391/71 Heading G2A A camera 1, for use with film 11 having a perforation 11a associated with each frame, the camera having a film transport sprocket 4 rotatable anti-clockwise (as seen) by a rapid wind lever 2 to advance the film and rotatable clockwise under spring action, this clockwise rotation not being transmitted to a film take up spool, is provided with a first locking pawl 16b which, when engaged, allows anti-clockwise rotation of the sprocket 4 and prevents clockwise rotation thereof; a second locking pawl 16a allowing clockwise rotation but preventing anticlockwise rotation when engaged with the sprocket 4; and a feeler lever 12 having a feeler 12d which, on detecting a perforation 11a, disengages the first pawl 16b from the sprocket 4 and causes the second pawl 16a to engage the sprocket. The camera is shown in its rest position. Rotating the lever 2 anti-clockwise also rotates the sprocket 4 to wind on the film 11 and to tension springs 3, 5. The pawl 16b engages the sprocket teeth, which teeth also transmit motion to a gear wheel 8, causing a pin 8a thereof to move a shutter drive lever 10 clockwise to slip over a shutter blade 20 and lock behind a lug 21a or 21b. This movement causes tensioning of a spring 15 by an arm 10a of the lever 10, thereby pressing the feeler lever 12 against the film 11. The feeler 12d will drop into the next perforation 11a under action of the spring 15, thereby causing a rocker 16, positively connected to the feeler lever 12, to rotate clockwise, thus disengaging the pawl 16b and engaging the pawl 16a. This prevents further film advance, but the sprocket 4 and hence the gear wheel 8 are returned to the position shown by the spring 5 after release of the rapid wind lever 2. On actuating a shutter release member 21, the lever 10 is rotated anti-clockwise to open the shutter blade 20 from which the lever 10 escapes to return to the position shown. This return motion frees the arm 10a and the spring 15, so the feeler 12d is pivoted out of the perforation 11a and the rocker 16 is swung back to disengage the second pawl 16a and re-engage the first pawl 16b. Any further actuation of the shutter release member will not result in shutter opening, until the shutter drive lever 10 has been re-tensioned by the next film advancing operation. A lever 26 is provided to return the rapid wind lever 2 and the sprocket 4 to their rest positions when a paper leader or tail without perforations is being transported. In another embodiment (Fig.2, not shown) the gear wheel 8 is replaced by a slotted lever (31) engaging a pin (32) on gear wheel (7). This lever (31) may be replaced by a Maltese cross lever, successive arms of which are engaged by the pin (32). The rocker 16 could be replaced by two yoked pawl levers. The member 10 could drive a multi-blade centrifugal shutter.
Patent GB-280344-A (GB)
Title: Improvements in life-guards or obstruction-removers for motor road and other vehicles
IPC: B60R21/34
Filed: 1926-10-12
Abstract: 280,344. Clifford, V. J. Oct. 12, 1920. Whoel-guards and safety appliances.-Relates to life-guards for motor and other vehicles of the, kind in which an elevated roller carried in a frame in front of the vehicle is adapted to be lowered towards the ground and rotated in an opposite direction to the vehicle wheels when the roller itself or a feeler-bar comes into contact with an obstacle. According to the invention, the roller 10, which may be formed in sections, is resiliently mounted in an adjustable and normally elevated frame 15 in such a manner that the backward movement or rebound of the roller in relation to the frame causes the roller to be revolved and also to be lowered with the frame into close proximity to the ground. In the construction shown, the resilient mounting is obtained by supporting the roller in a pair of pendants 12 pivoted at 14 to the frame or side plates 15, which in turn are pivoted at 17 to brackets 18 on the chassis 19, the plates 15 being held in a raised position by a latch 20 releasable by a lever 44 and adapted to drop to an extent determined by the contact of rubber buffers 23<1> with the chassis 19. The roller and its supporting shaft 11 are revolved by a worm-wheel 28, worm 27 and telescopic shaft 26, 26<a> associated with an auxiliary motor 24. When the roller contacts with an obstacle, it is forced downwardly and backwardly in relation to the plates 15, the downward movement being compensated for by providing a universal joint 30 in the shaft 26<a>, and the backward movement by the amount of telescoping permitted between the shafts 26, 26<a>. At the same time an extension 16 on one of the pendants 12 engages a knob 41 of a tumbler switch so as to energize the motor 24 and start the shaft 26, 26<a> revolving. Owing to the provision of a pivoted pawl 34 engaging a ratchet 31 on the shaft 11, however, the roller 10 does not immediately commence to revolve; instead, the shaft 26, 26<a> is fed backwardly, causing the release lever 44 to be actuated and the plates 15 to swing downwardly, and also bringing shoulders 39 on the shaft 26a into contact with a release finger 37 for the pawl 34 and so as to give, when released, an initial rotation In place of an auxiliary motor, the roller may be operated by the vehicle motor, cr by compressed air, or by auxiliary rollers pressed into contact with the ground, while the roller itself may be made of aluminium and roughened or provided with a rubber covering or pneumatic cushions. A catch net may be disposed above the: roller, or a band working on the driven and other rollers may be substituted. Springs may he employed so as to give, when released, an initial rotation to the roller before the drive from the motor becomes effective. The device may he capable of being lowered by the driver when required, or folded up to an inoperative position, and may be mounted for moving laterally with the movements of the steering-wheels.
Patent GB-169374-A (GB)
Title: Improvements in spring forks for motor cycles
IPC: B62K25/24
Filed: 1920-09-03
Abstract: 169,374. Norton, E. J. Sept. 3, 1920. Spring devices.-In a motor-cycle spring fork, a wheel-carrying member A, connected bv links C to the lower end of the steering-column Z, is controlled by one or more leaf springs F, which are attached at their lower ends to the member A, at their upper ends to shackles J carried by the upper end of the column, and at an intermediate point to an anchorage E<2> carried by the lower end of the column, such springs supporting between their upper end and the intermediate point secondary links M attached to the upper extremities of the wheel-carrying member. The anchorage preferably comprises a block pivotally mounted between arms E projecting from the lower end of the column. According to the Provisional Specification, the wheelcarrying member may be connected to the column by parallel links so that it has a vertical motion only, such motion being controlled by one or more bow springs which are arranged substantially parallel to the line of movement of the member and are attached at one end to the member and at the other end to an anchorage fixed to the column.
Patent GB-791351-A (GB)
Title: Improvements in and relating to lint extractors
IPC: D06F58/22
Filed: 1955-09-05
Abstract: 791,351. Centrifugal separators. GENERAL ELECTRIC CO. Sept. 5, 1955 [Sept. 10, 1954], No. 25438/55. Class 23 [Also in Group XIII] Apparatus for separating lint from air comprises a substantially cylindrical body 50 inclined at less than 45 degrees to the horizontal, an inlet nozzle 48 entering the upper end of the body tangentially, a lint collecting chamber 51 commuicating with the lower end of the body and having a cross-section greater than that of the body, and an axial air outlet 54 having an inlet between the nozzle and the chamber. The apparatus is housed within the casing of a drying machine (see Group XIII), the nozzle being a continuation of a duct 40 receiving warmed air from the tumbler 1 and the outlet being connected to a blower 38 circulating the air through the tumbler. Dust is discharged from the chamber by means of a drawer housing a knob 52. The air velocity within the body is 12-15 ft./sec.
Patent GB-1208543-A (GB)
Title: Process for the production of handles
Inventor: GUHSWALD JOSEF
IPC: A45C13/26
Filed: 1969-05-19
Abstract: 1,208,543. Moulding handles. J. GUHSWALD. 19 May, 1969 [21 May, 1968], No. 25445/69. Headings B4K and B5A. Synthetic plastics handles contoured to fit the hand of the subsequent user are made by forming a crude handle with a substantially plane surface from a hardenable synthetics plastics material in a plastic state, impressing the shape of the subsequent user's hand into the handle by gripping and hardening the synthetic plastics material, e.g. by gripping. The crude handle may contain a core of a different material and the core may be hollow or contain means, e.g. a screw-thread, for fixing to a tool. A thin coating of porous synthetic plastics or a natural material may be provided on the crude handle, this skin forming a surface on the finished handle. The handle may be used for a knife, hoe, door, cycle or motorcycle handlebar, golf club or tennis racket.
Patent GB-535893-A (GB)
Title: Improvements in autorotative wing systems
IPC: B64C27/02
Filed: 1939-09-08
Abstract: 535,893. Aerial warfare; torpedoes. THURSTON, A. P. Nos. 25465/39, 30527/39, 30528/39 and 14761/40. Sept. 8, 1939. [Class 9 (ii)] [Also in Group XXXIII] A device comprising one or more blades stabilized in incidence and linked by a cable or other flexible member of substantial length to an external centre about which the blade or blades move in auto-rotation, is utilized as a parachute for supporting a bomb or an aerial obstruction, or for facilitating the landing or take-off of an aircraft. The device also may be mounted on an aircraft to sweep away obstructions or to damage hostile aircraft or towed under water for mine sweeping or by a captive balloon or kite to act as an aerial obstruction, or it may be dropped by an aircraft or shot from a gun into the path of hostile aircraft. Each blade is bent to form a dihedral angle and has a stabilizing tail 2 one end of each blade being connected by a cable 21 to a swivel 20, Fig. 10, from which a bomb cable, or grapnel may be suspended. A vertical fin may be provided at or near one end of each blade to assist the action of centrifugal force and the stabilizing tail may be mounted on this fin. Fig. 13 shows such a device mounted at the forward end of an aircraft for sweeping away barrage cables. Cutters or bombs may be provided at the blade connections for severing the cables. One or more such devices may be towed behind an aircraft to destroy attacking aircraft. When used for mine sweeping the device is trailed from a projecting arm or from a water kite and the blades may be provided with cable cutters or with electromagnetic devices for destroying magnetic mines. For assisting the landing of aircraft the device is allowed to be paid out from a tubular member to the rear of the aircraft and as the blades begin to rotate the tubular member rises automatically or is raised into a vertical position. The blades may be connected to arms connected to a slider by which they are moved into and out of the tube.
Patent GB-602861-A (GB)
Title: Improvements in or relating to evaporators
IPC: C11B1/10
Filed: 1945-09-05
Abstract: An evaporator comprises a rotatable drum divided by partitions into annular chambers, scoops on the partitions for transferring liquid, introduced into an outer chamber, from one chamber to the next in an inward direction, and means for passing steam or like evaporating medium through the chambers.  The apparatus is suitable for evaporating liquids which foam or which contain small quantities of finely-divided solids.  It may be used for the recovery of solvents from oil extracts, and for the deodorization of palm, cotton seed or soya bean oils.  The evaporator may be used as a "second stage" evaporator to remove the remainder of the solvent from an oil extract previously treated in a primary evaporator.  The apparatus is more fully described, with drawings, in the abridgment of Specification 602,818.
Patent GB-1394454-A (GB)
Title: Process for the production of high-purity  phenol
IPC: C07C67/00
Filed: 1972-06-01
Abstract: 1394454 Phenol BP CHEMICALS INTERNATIONAL Ltd 4 May 1973 [1 June 1972] 25598/72 Heading C2C A process for the purification of phenol obtained from the acid cleavage of cumene hydroperoxide and containing water-soluble colour-forming impurities boiling from 152‹ to 182‹ C. comprises subjecting the phenol which has been freed from acetone, water, mesityl oxide, cumene and methyl styrene to a distillation in which the water-soluble colourforming impurities are maintained within a substantially anhydrous part of the column under distillation conditions for a period so as to concentrate the impurities and at least partially to decompose them to mesityl oxidecontaining decomposition products, removing a base product comprising phenols free from watersoluble colour-forming impurities boiling from 152‹ to 182‹ C. and an overhead fraction containing lower-boiling decomposition products in the presence or absence of the said impurities and thereafter separating the phenol from the higher boiling decomposition and cleavage products. An example is furnished.