baber/WOPTO huggingface dataset:
Patent GB-969858-A (GB)
Title: Improvements in or relating to change-speed gears
Inventor: GOLDING ERNST
IPC: F16H59/42
Filed: 1961-04-27
Abstract: 969,858. Change speed gear and control. H. HURTH, and F. HURTH. April 27, 1961, No. 15230/61. Headings F2D and F2X. In a change speed friction or, as shown toothed gear, a synchronizing device facilitating the engagement of sliding gears, or friction disc or, as shown, positive dog clutches 11, 12, 13, which may be electromagnetic or overriding, on the driving or, as shown, driven shaft of constant mesh change speed gears 4-9 comprises a body 16 rotating with the change speed gear input shaft 2 and having a variable radius of gyration which can be manually or automatically adjusted mechanically, electromagnetically, or, as shown, hydraulically or pneumatically to correspond with the gear stages, so that upon disengagement of a main clutch 1 and gear clutches 11, 12 or 13 and subsequent adjustment of flyweights 20 of the body 16 to a greater or lesser radius of gyration, with the mass of the body 16 remaining constant and (apart from frictional losses) the momentum of the shaft 2 and the elements rotating therewith remaining substantially constant, the speed of the shaft 2 is suitably reduced or increased respectively. The body 16 is driven from the shaft 2 through reducing or, as shown, increasing belt, chain or, as shown, toothed gearing 3, 15, the latter being keyed to an axially fixed housing 17. The flyweights 20 are radially positioned by axial movement of a piston rod 22 having thereon relatively fixed and free pistons 21, 29 in stepped cylinder bores in the housing 17. The position of the rod 22 is determined hydraulically or pneumatically by a rotary control valve 37 having three positions, viz. (1) in which cylinder spaces 27, 28 are pressurized for the leftward rod position providing the inner flyweight position for synchronizing low gear; (2) in which cylinder spaces 26, 28 are pressurized for the mid rod position providing the mid flyweight position for synchronizing second gear, the leftwardly urged free piston 29 opposing rightward movement of the piston 21, and (3) in which only the cylinder space 27 is pressurized for the rightward rod position providing the outer flyweight position for synchronizing top gear. The synchronizing device is operative for up and downshifts and for shifts directly from low to high and vice versa. By moving the rotary control valve 37 independently of its synchronizing function the speed of the whole assembly may be correspondingly altered. Further the limit of the movement of the free piston 29 can be made adjustable by providing a further piston in place of the rightward stop 44. For use as an acceleration means the flyweights may be shifted from a larger to a smaller radius.
Patent GB-686513-A (GB)
Title: Improvements in and relating to bases for electric lamps
IPC: H01J5/58
Filed: 1951-06-27
Abstract: 686,513. Cans for electric incandescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd. June 27, 1951 [July 1, 1950], No. 15245/51. Class 39(ii) [Also in Group XXXVI] A lamp cap comprises a cup-shaped insulating member 29 having spaced apertures 32 adapted to pass parallel prong contacts 23 extending from the lamp envelope 2, the contacts having bent-over portions 27 forming spring arms which snap over the outer face of member 29 and hold it in place on the lamp. The contacts are soldered to ferrules 16 sealed to the envelope 2. The lamp may be of the type described in Specification 515,091. Specifications 471,301, [Group XXXVI], and 558,532 also are referred to.
Patent GB-1106108-A (GB)
Title: Improvements in or relating to optical measuring apparatus for spectacles
IPC: G02C13/00
Filed: 1965-04-09
Abstract: 1,106,108. Optical apparatus. SOCIETE DES LUNETIERS. April 9, 1965 [April 28, 1964; Dec. 7, 1964], No. 15249/65. Heading G2J. Apparatus for measuring the position of a patient's eyes with respect to a spectacle frame and/or reference marks associated with the spectacle lenses, comprises a box 1 containing a first optical system 3, 3a for forming an image of the patient's eyes, spectacle frame and reference marks for close vision and a second optical system defined by two adjacent, parallel systems 12, 12a which image the eyes, spectacle frame and reference marks for vision at infinity, the two images formed being projected by means of semi-reflective or removable mirrors 8a, 28 on to a photo-sensitive film 9 and on to the focal plane 16 of an observation eye piece 15. For close vision the patient P looks towards the lower part of the box 1 which houses the lens system 3, 3a, while for distance vision he looks in a horizontal direction towards a mirror 13 which is arranged to direct this line of sight into parallel relationship with the optical axes of the systems 12, 12a. The two positions may be recorded on one film which is moved between exposures so that the images are produced one above the other. Fixed reticles may be positioned in the plane 16 and immediately in front of the film 9. Alternative reticles comprise small transparent discs which are movably clamped to the front of the spectacle lenses.
Patent GB-637950-A (GB)
Title: Improvements in cams for operating valves of internal combustion engines
IPC: F01L1/08
Filed: 1948-06-07
Abstract: 637,950. Valve-gear. AUSTIN MOTOR CO., Ltd., and BISHOP, J. L. H. June 7, 1948, No. 15263. [Class 7 (vi)] A valve operating cam having an effective lifting portion DE is designed with an opening ramp CD, in which tappet clearance is taken up, consisting of a small accelerating portion OG on the lift curve Fig. 5, a part GH consisting of the negative half period of a sine curve plotted on the sloping straight line GH, and a part HX, consisting of the positive quarter period of a sine curve plotted on a sloping straight line HJ, which merges into a constant velocity portion XY. The effect of the design is that at the end of the ramp the velocity of lift is kept very small. The cam is provided with a similar closing ramp EF. Specifications 629,500 and 629,629 are referred to.
Patent GB-856846-A (GB)
Title: Improvements relating to the dyeing of textiles
Inventor: KRUG PAVEL
IPC: D06P1/22
Filed: 1958-05-13
Abstract: In the dyeing of textile materials comprising mixtures of linear aromatic polyester fibres and cellulose fibres with vat dyestuffs, the material is treated with a leuco vat acid suspension obtained by heating an aqueous mixture of a vat dyestuff and an excess of thiourea dioxide, then dried and heated (whereby the polyester fibres are dyed), and subsequently treated with an alkali and again heated (whereby the cellulose fibres are dyed).  The latter heat-treatment may be effected in the molten metal equipment of Specification 620,584, a solution of the alkali floating on the molten metal at the entry.  The first heat treatment, for example at 160 DEG -180 DEG C., may be effected by steam, electric means or infrared radiation.  The acid leuco vat suspension may be obtained by heating, e.g., at 60 DEG -80 DEG C., an aqueous dispersion of the dyestuff and excess thiourea dioxide in the presence of a reduction catalyst such as anthraquinone, anthraquinone sulphonic acid or the sodium salt of anthraquinone carboxylic or sulphonic acid, a pH adjuster such as disodium hydrogen phosphate and a protective colloid such as naphthyl methane disulphonic acid.  Conventional carriers for polyester fibres, such as dichlorobenzene, may be added to the leuco vat acid suspension.
Patent GB-599274-A (GB)
Title: Improvements in electro-mechanical resonators
IPC: H03H9/24
Filed: 1945-06-15
Abstract: 599,274. Electromechanical resonators; valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and NEILSON, P. J. June 15, 1945, No. 15278. [Classes 40 (iii) and 40 (v)] A resonator comprises an annulus a which either is of magnetic material or, Fig. 6 (not shown), has insets of magnetic material. It may be supported between four sets of points lc, uc, Fig. 1, located at nodes of vibration, or by means of nodal line contact, or it may have a web w, Fig. 3 (not shown), and Fig. 2, and be supported at the centre of the web. Electromagnets eu, pu, for exciting or picking up oscillations are located at antinodes of the fundamental frequency or of a selected harmonic, Fig. 5 (not shown), and oscillations may be generated by connecting two such electromagnets to the grid and anode of a triode, Fig. 4 (not shown).
Patent GB-295785-A (GB)
Title: Improvements in vehicle wheels
IPC: B60B3/04
Filed: 1927-06-08
Abstract: 295,785. Simpson, R. W., and Kemp, E. A. June 8, 1927. Disc wheels.-The wheel body is formed of sector plates 2 of obtuse-angled section connected together so as to produce a disc of zigzag profile. Each plate is formed with a lip 8 and a U- shaped flange 9 adapted to interengage around the wheel, the built-up disc being riveted to a hub-flange 3 to which a brake-drum 11 is detachably bolted. The outer edges of the plates are formed with flanges 10 on which a detachable rim 20 is seated. The plates are connected by two sets of brackets which serve to lock and clamp the rim. The locking-brackets 14, Fig. 5, are formed with flanges 15 to embrace the plateflanges 9, and with lugs 16 which are received in notches 17 at the edges of the plates. The lugs 16 are shaped to provide a tee-shaped slot 18 in which studs 19 projecting from the rim 20 are locked by a bayonet-joint movement. The clamping-brackets 21, Fig. 4, are formed with ears 24 to embrace the plate flanges 9, ledges 23 received in the recesses 17, and inclined flanges 22 which are riveted to the plates 2 and form wedge seatings for blocks 30 carried by the rim. The blocks 30 are formed with elongated holes to receive bolts 25 projecting from the brackets 21.
Patent GB-277428-A (GB)
Title: Improvements in or relating to railway signalling systems
IPC: B61L1/18
Filed: 1926-06-17
Abstract: 277,428. Automatic Telephone Manufacturing Co., Ltd., and Tarrant, R. W. June 17, 1926. Electrical systems, automatic.-In a trackrelay system the track battery 3 is connected to the rails 1, 2 of an insulated track section through the winding 4 of a vibrator and the vibrator contact 6, the contact 6 being shunted by an electrolytic cell 7 acting as a condenser of large capacity to slow down the action of the vibrator. The electrolytic cell may be such as described in Specification 248,466, [Class 37, Electricity, Measuring &c.]. The vibrator may have an auxiliary high resistance winding 5 wound so as to aid the winding 4, but normally short-circuited by contact 6. This winding also provides that the circuit between batten and rails is never actually broken.
Patent GB-1084485-A (GB)
Title: Peptide-like inhibitor for trypsin
Inventor: WERLE EUGEN
IPC: C07K14/81
Filed: 1966-04-06
Abstract: A peptide-like inhibitor for trypsin isolated from mammalian pancreas glands, which does not inhibit chymotrypsin, kallikrein, thrombin or plasmin has an estimated M.Wt. between 6800 and 7600 and is a white powder having a decomposing point above 210 DEG  C., soluble in water and salt solutions.  The substance also inhibits papain.  It may be used therapeutically by injection in a suitable medium.  In an example, pig pancreas glands are homogenized with 6% perchloric acid, heated and centrifuged and the supermatant liquor neutralized; precipitated chlorate is filtered off and the filtrate concentrated, decanted from precipitated salts, de-salted with ion-exchange material.  The concentrate is further purified by ion-exchange and lyophilized.  A solution of this material (in excess) is added to a trypsin solution to form a complex which is fractionated by ion-exchange, lyophilized and subsequently split at acid pH to give pure inhibitor.ALSO:A composition for inhibiting trypsin and other enzymes which may be administered by injection comprises an extract of mammalian pancreas gland (see Division C3) in a carrier or vehicle.
Patent GB-131490-A (GB)
Title: Improvements in and relating to Electro-magnetic Switches.
IPC: H01H71/24
Filed: 1918-09-23
Abstract: 131,490. British Thomson-Houston Co., and Hastings, H. C. Sept. 23, 1918. Master control systems. -A lockout switch having a shunt winding 10 and a magnetic structure arranged as in the lockout switch described ir Specification 11349/11 (so that the single winding produces both a closing flux between 11 and 12, and a holding out flux between 16 and 14 opposing one another and acting on a single, pivoted lever 14, 12, the part 12 of which forms part of the path for both fluxes) has a series lock-out coil 17 which produces a flux having a path wholly independent of those of the shunt-wound magnet. The series coi is mounted on one limb 18 of a U-shaped core, Fig. 5. The flux paths of the fluxes due to the winding are so proportioned that the closing force produced by the shunt coil is always greater than the lock-out force produced by it over the working range of the contactor. An arrangement of four contactors 1, 2, 3, 4 for controlling a non- reversing series motor is shown in Fig. 7, contactors 2, 3, 4 being of the construction above described with the addition that the lockout contactors 2, 3, as well as the ordinary contactor 1. are provided with auxiliary switch contacts S2, S3, S1 closed by the closure of their respective contacts and controlling the supply to the shunt winding of the following contactor to ensure that the contactors come into action in the correct order. Specification 20534/11 also is referred to.
Patent GB-1300994-A (GB)
Title: Apparatus for raising submerged vessels
IPC: B63C7/12
Filed: 1970-04-01
Abstract: 1300994 Raising submerged vessels CYCLO MFG CO and J D HELBIG 1 April 1970 [1 April 1969] 15471/70 Heading B7S [Also in Division F2] Apparatus for raising submerged vessels comprises a hollow buoyant element 10 having an opening in its wall defined by the edge 11. A diaphragm 13 covers the opening and has a flexible resilient portion provided with an aperture 16 which does not permit passage of air when pressures inside and outside the hollow element are equal. The apertured portion of the diaphragm automatically becomes flexed in response to predetermined unequal pressures against opposite sides whereby the aperture is altered and permits passage of air. Peripheral flanges 14, 15 mount the diaphragm on the hollow element.
Patent GB-598978-A (GB)
Title: Improvement in pressing iron
IPC: D06F75/30
Filed: 1945-06-19
Abstract: 598,978. Electric hand-irons. SCHREYER, E. P. June 19. 1945, No. 15512. [Class 138 (ii)] In an electric hand-iron of the kind comprising a sole plate heated by an electric element, a shell mounted on the sole plate and a handle mounted on the shell, the sole plate has two ironing surfaces and means are provided in association with cut-away parts of the shell to enable the iron to rest on either side with the sole plate elevated above the support. As shown in Figs. 2 and 4, a hand-iron is provided in addition to the main pressing surface 21 of the sole plate with a rear auxiliary pressing surface 24, also pointed but shorter, merging in curves 23 with the main portion and inclined at an angle thereto. The heating elements 26 and 26<1> are preferably continuous, there being between the two a relatively cool point to allow stretching of the work before setting by the high heat and thus prevent shrinkage. The thermostat with its adjustable contact 33 and thermostatically movable contact 32 is in a housing 38, Fig. 4 and 5, secured to the sole plate and projecting through a layer of asbestos 35, Fig. 14, a metal cover 36 and a metal shell 37. The setting knob shaft 39 projects through the top of the housing, the rear end of which is closed by a vertical plate 41 carrying terminals 42: An outer shell 43 having the handle 67 secured to it is connected by bolts 44 to the sole plate and is curved down forwardly and rearwardly to the pointed ends at 47 and 50, the sides being cut away to form openings through which project cooling fins 54, 55, 56, 57 spaced by stamped up projections 58, 59, 60, 61, and supported on lugs 40 bent out from the thermostat housing 38. The lowest fin 54 projects laterally beyond the sole plate and is of heavier gauge metal so that it may be used, by tilting the iron sideways as a support to rest the iron at a safe distance above the ironing table without scorching. In a modified form an identical sole plate 20<1>, Fig. 13, has a casing 43<1> with lower side openings, the metal from which is bent out on the upper edge to form projecting fins 94 to act as side rests and these fins may have an elongated opening.
Patent GB-543505-A (GB)
Title: Improvements in electrolytic electric condensers
IPC: H01G9/04
Filed: 1940-10-24
Abstract: 543,505. Electrolytic condensers. BRITISH INSULATED CABLES, Ltd., HIGHAM, R., HOUGH, W. E., [both representatives of HIGHAM, H. J.], BRISLEE, F. J., BANNISTER, L. C., and QUAYLE, J. C. Oct. 24, 1940, No. 15648. Drawings to Specification. [Class 37] A flexible anode is formed by spraying aluminium on to one or both sides of a flexible support of paper, synthetic plastic material, woven fabric, or glass cloth, and then calendering the strip &c. to reduce its thickness, as by 30-50 per cent, and to increase its flexibility. Suitable plastics are given as acetyl cellulose, ethyl cellulose, plasticized regenerated cellulose polythene and polystyrene.
Patent GB-985072-A (GB)
Title: Indexing mechanism for rotary machine tables
IPC: B23Q16/06
Filed: 1963-04-20
Abstract: 985,072. Machine tool details. TEMPLE INSTRUMENTS Ltd., and G. W. GREENFIELD. Feb. 27, 1964 [April 20, 1963], No. 15677/63. Heading B3B. A machine tool table assembly comprises a circle of uniformly spaced pins 14 on a rotary table, a pawl 17 mounted on a slide 15 movable tangentially of the circle to engage the pins sequentially to index the table and a positive lock for the table. The positive lock is obtained by the engagement of two of the pins 14 engaging the pawl. The slide 15 may be reciprocated pneumatically. A pawl 21 prevents backward movement of the table.
Patent GB-570999-A (GB)
Title: Improvements in or relating to screw-presses
IPC: B30B9/16
Filed: 1943-09-24
Abstract: <PICT:0570999/IV/1> <PICT:0570999/IV/2> A press for removing carbon bisulphide from sodium cellulose xanthate and compacting the latter to remove air therefrom comprises a pair of intermeshing screws 14, 16, the threads of each of which fill the complementary grooves of the other screw at the position where they intermesh, and the said screws are so formed that the volumetric capacity of the grooves gradually decreases from the inlet 26 to the outlet of the press.  A solid forming die 28 is positioned closely about the non-intermeshing portions of the screws at the outlet end, and a perforated cover or sleeve 36 is disposed around the screws.  In the construction shown, the decrease in volumetric capacity is obtained by decreasing the depth of the grooves, but in a modification, Fig. 5 (not shown), the depth is maintained constant and the width of the rooves decreases. The die 28 is held in place by bolts 30 and spacing members 32. Screw-operated wedge bars 40 urge the sleeve 36 into contact with the screws.  Each screw shaft 18 has a packing gland comprising a flange 50, which is secured to the press frame 22 and has a cavity in which rotates a dip ring or thrower 58.  The cavity may be connected to vacuum through opening 60.  The casing 12 is air-tight and a vacuum is applied to the carbon bisulphide outlet 34.
Patent GB-546490-A (GB)
Title: Improvements in the production of finely divided metals from metal compounds without fusion
IPC: B22F9/22
Filed: 1940-10-28
Abstract: 546,490. Reducing ores. HARDY METALLURGICAL CO. Oct. 28, 1940, No. 15778. Convention date, Dec. 23, 1939. [Classes 72 and 82 (i)] In the production of finely divided solid metals by reducing fine particles of a compound of the metal with a hot reducing gas, the bed of particles is caused to move along a deck upon which the bed is supported while passing the hot gas in contact with, preferably through, the particles and while imparting a tabling motion to the bed to bring about separation of the light and heavy particles. In the production of finely divided iron, fine iron oxide is fed to a preheater 17 and thence down a shoot 18 on to one end of a shaking table 10 adjacent to a baffle 12A and enclosed within a chamber 11, the table being provided with a corrugated deck 12 mounted on and forming the top of a gas chamber 14 and provided with small perforations 13 in the ridges of the deck 12. The shaking of the table is produced by a plurality of eccentric cams, e.g. one cam 15 to bump periodically against the end of the table and another 16 to bump against the side, the table being mounted on springs or other means for restoring the table to its original position after it is bumped. Hydrogen from a preheater 26 is introduced into the chamber 14 by a flexible pipe 19 and passes through the perforations 13 in the table 12 into the heated ore. The reduced iron particles collect in the hollows of the table 12 and are finally deposited in a shoot 20 passing thence to a cooler 20A. Incompletely reduced particles of the ore pass over the sides of the table 10 into a shoot 21 and are returned to the preheater 17. Gases from the chamber 11 pass through a condenser 22 for the removal of water vapour and the rest of the gasses pass to a pump 25 where they are mixed with fresh hydrogen introduced into the circuit. The reduction of oxides of iron, molybdenum, chromium, nickel and tungsten is referred to. Specification 527,243 is referred to.
Patent GB-119135-A (GB)
Title: Improvements in and relating to Power Generating Mechanism.
Inventor: PETERSON JOHN
IPC: F16H37/12
Filed: 1917-10-30
Abstract: 119,135. Peterson, J. Oct. 30, 1917 Self-driving machines.-A central spur wheel 4 is geared to a toothed annulus 18 by a pair of pinions 9 and by an intermediate pair of toothed rings 12. Internally, the toothed rings gear with toothed rollers on arms 26 which are thrust against them by levers 27.
Patent GB-1497494-A (GB)
Title: Electrical connector
IPC: H01R4/24
Filed: 1976-04-20
Abstract: 1497494 Electric couplings AMP Inc 20 April 1976 [12 May 1975] 15830/76 Heading H2E An electrical connector comprises a moulded plastics insulating housing 11 having in opposed faces of the housing cavities 13 in each of which a respective slotted metal terminal 12 is mounted, a slot of the terminal partially registering with a slot 21 in the housing and one wall of slot 21 being formed by a resilient portion 24 so that when a wire is pushed into the slots the wire conductor engages the terminal slot and the wire is held in the conductor by the portion 24. In the illustrated embodiment the terminal is U-shaped and has pairs of registering slots 14, 15 between which further slots 17 are located which allow flexure of the fingers defining one side of the slots 14, 15. One slot of each pair is narrower than the other so that when a wire is retained by the connector one slot engages the wire conductor and the other the insulation. The inner end of each housing slot is widened and a wire to be retained by the connector is pushed through a slot 21 and thereby displaces both the finger which constitutes the resilient portion 24 and the dividing wall 26 between slots until, on reaching the widened slot portion, the finger and dividing wall move back into place and the wire is trapped (Figs. 5 to 7, not shown). The connectors can be manufactured very small for use in splicing telephone cables. A plurality of housings can be manufactured on a perforated carrier strip 31 which permits moulding of the housings directly on to the strip, the housings being retained on the strip by integral studs. The housing has a base portion 29 of reduced width to provide access for wire insertion tooling, insertion being carried out automatically by a ram as the strip 31 is advanced past the tooling. In another embodiment (Figs. 8 and 9, not shown) three slots are provided in the housing for each terminal and corresponding slots in the terminals enabling a tap to be taken from a spliced cable.