baber/WOPTO huggingface dataset:
Patent GB-435845-A (GB)
Title: Improvements in eye-pieces having optical members that consist of a lens system and a prism system
IPC: G02B25/00
Filed: 1935-05-04
Abstract: 435,845. Eyepieces. ZEISS, C., [Firm of], Carl-Zeiss Strasse, Jena, Germany. May 4, 1935, No. 13335. Convention date, May 14, 1934. [Class 97 (i)] Relates to eyepieces, especially for binocular telescopes having interocular adjustment, comprising a lens system and a prism system. The eyepiece according to the invention has three lens components separated by air spaces with the prism system disposed in the air space between the first and second components, and is characterized by the following features : (1) the front lens component I is negative and its focal length is numerically at least equal to the focal length of the entire system and at most equal to twenty times this length, (2) the rear component consists of a number of lenses VI.. IX and the reciprocal of its focal length is not less than -0À7 and not more than + 0À3 of the reciprocal of the focal length of the system, (3) the front intersectional distance t of the rear component is numerically at least equal to 1À1 times the focal length of this component, (4) the rear component has at least two pairs of neighbouring surfaces whose focal lengths are negative and which may be cemented together, (5) the middle component IV, V is positive and its focal length is not less than 0À5 and not more than 3À0 times the focal length of the system. F<1> denotes the front focus of the rear component, which in the form shown has negative power, and P is the exit. pupil. Preferably the algebraical difference of curvature of the lens surfaces r<7>, r<6>, bounding the air space between the middle and rear components is greater than the reciprocal of the focal length of the system and the combined focal length of the middle and rear components is less than the corresponding front intersectional distance.
Patent GB-587625-A (GB)
Title: Methods of producing ferrous castings having desired physical properties
Filed: 1944-07-12
Abstract: Wear-resisting castings, e.g., diesel cylinders, brake-drums, crankshafts, liners, cams and gears, are made from iron containing such a percentage of carbon and silicon that, during normal cooling in a sand mould, the micro-structure changes from austenite to pearlite and a volume shrinkage of 2 per cent. occurs, the casting being extracted from the mould above the eutectoid critical range and at once cooled at a greatly increased rate.  The charge may be made up to have an analysis of 1.46 per cent. silicon, 0.85 manganese, 3.14 carbon, 1.27 nickel, 0.42 chromium, 0.55 molybdenum, and the residue iron.
Patent GB-133880-A (GB)
IPC: H04M1/08
Abstract: 133,880. Smith, A. K. Toulmin-. Feb. 13, 1919. Mercury switches comprise a closed cylinder 2 of insulating- material, terminals 12 inside the cylinder, and a plunger 1 of insulating-material having a passage 9 cut from end to end, the remaining space in the cylinder 2 being filled with mercury. The plunger 1 is operated by a rod 3 against a spring 6, and a spring 10 presses the plunger against the wall of the cylinder. When the plunger is operated, the mercury is displaced and one or more of the contacts 12 covered by the insulating-material of the plungers. The number and disposition of the contacts may be varied so as to produce a distributing-switch. The mercury may be permanently connected to the circuit as by the terminal 14. According to the Provisional Specification, a rotary plate of insulating material may be employed in place of the plunger.
Patent GB-134034-A (GB)
IPC: B60T15/04
Abstract: 134,034. Myers, A. B. Oct. 24, 1918. Fluid-pressure. - Relates to valves applied to the triplevalve exhaust and controlled by a separate train-pipe and manual valve on the locomotive, whereby the pressure in the brake cylinders can be retained or released as desired after the triple valve has been moved to the release position. The pressure-retaining valve provided on each car comprises a body 10 having passages 12, 13 connected respectively to the triple-valve exhaust and to a pipe 19 leading to the atmosphere through a normally-open hand retaining-valve. A valve seat 17 is screwed into the body 10, as is also a cylinder 20 in which works a piston 21. The cylinder 20 is connected at 24 to the separate train-pipe, which is adapted to be connected, by a manual valve on the locomotive, either to exhaust or to a reservoir in communication through a pressure-reducing valve with the main reservoir. By admitting pressure to this second train-pipe from the reservoir, the piston 21 is caused to force a ball valve 18 on to the seat 17 and thus prevent the escape of the air from the brake cylinders, although the triple valve has been moved to the released position.
Patent GB-112252-A (GB)
Title: An Improved Cover for Heating Radiators.
Inventor: HOOK JACOB
IPC: F24D19/06
Filed: 1917-09-19
Abstract: 112,252. Hook, J. Sept. 19, 1917 Radiators.-A cover fitting over the top of a radiator contains a number of deflectorplates for preventing the discharge of soot and dust into the room. The curved deflector plates 5 are held in grooves in the cover end-plates 3. A detachable screen placed over the deflector plates consists of wire netting 14 held in a frame 15. A water pan 7 is supported upon longitudinal L-irons secured to the end-plates.
Patent GB-134716-A (GB)
IPC: A46B11/00
Abstract: 134,716. Ransford, R. E., (De Luxe Ba-usle Co.). Feb. 7, 1919. Piston apparatus for discharging receptacles.- Relates to devices for dispensing plastic or liquid materials, such as supplying soap to a shaving brush, and consists in the use of a reservoir rotatable with respect to its head, rotation being prevented until the delivery valve has been opened by longitudinal movement. In one modification. a plate 3, Fig. 1, carried by the head has one or more pins 15 engaging apertures in a cap 2 carried by the reservoir 1. A piston 14 engages a nut 12 on a threaded stem 10, which is provided with valve ports 11 and a squared portion 11<a> sliding through the plate 3. The initial withdrawal of the reservoir 1 frees the pins 15, and the reservoir is then rotated to move the piston 14 and expel material from the reservoir through the stem 10 and the opened ports 11 until the pins and apertures again coincide, when the parts are returned to their original position by a spring 17. The amount of material delivered at each discharge thus depends upon the number of pins and apertures. The pins and apertures may be replaced by cams and recesses. In another modification, Fig. 6, the tube 10<a> is fixed to the head, and the discharge orifice at the bottom of the tube is normally closed by a rod 23. This rod carries cams 27 engaged by pins 28 on the reservoir 1<a>, and also has pins 26 engaging recesses in the. end of the tube 10<a>. Initial movement of the reservoir opens the valve through the pins 28, and the release of the. pins 26 permits rotary movement.
Patent GB-1338095-A (GB)
Title: Electric pile batteries
IPC: H01M6/48
Filed: 1971-04-19
Abstract: 1338095 Primary batteries ELECTRIC POWER STORAGE Ltd 19 April 1971 [20 March 1970] 13509/70 Heading H1B In a pile battery each electrode 11, 15 of one cell is separated from the electrode of opposite polarity of a neighbouring cell by a conducting sheet 12 forming an intercell partition and connector, each sheet 12 and one or both adjacent sheet electrodes being held together, as a set, along at least part of their periphery by one or more tapes or gaskets forming a U- section seal, the tapes or gaskets adhering together to form a stack of sets. As shown the battery has magnesium sheets 11 and silver chloride sheets 15 as electrodes, the partitions 12 being of silver foil. The straight edges of the plates 11, 12 are sealed together by thin selfadhesive tape 19 and the curved ends are wrapped with self-amalgamating tape 20 of greater thickness than the tape 19 so that inlets remain between the sets along the straight sides of the stack for the entry of sea water which acts as the electrolyte. The positive electrodes 15 are located by the inner edges of the tapes 20 and each have glass balls 16 partially embedded in one facet, the balls acting as separators. This construction may be used in other types of batteries using alkaline or acid electrolyte in which case the tapes 20 would extend around the whole periphery of the sets to provide a sealed stack.
Patent GB-1100583-A (GB)
Title: Improved drying apparatus
Inventor: MAXWELL EUSTACE
IPC: B60S3/00
Filed: 1964-04-02
Abstract: 1,100,583. Drying washed cars. A.V.W. EQUIPMENT Ltd. 1 April, 1965 [2 April, 1964; 3 Feb., 1965], Nos. 13576/64 and 4616/65. Heading F4G. Apparatus for drying washed cars comprises a base 1 and a casing 2 housing a fan (not shown) on which is pivotally mounted a counterweighted air duct 3 tapering to a nozzle outlet 4, and a sensing means mounted forwardly of the nozzle to sense the external surface of a vehicle during its relative movement past the nozzle along a driveway. The sensing means comprises a photo-electric cell 22 and light source 23 operating an electromagnetic brake 25 on the duct 3 which forms the first and main element of the sensing means. Failure of the first means is counteracted by a roller 5 positioned behind the cell in the direction of movement of the vehicle which operates a shutter 24 to interrupt the light beam and so actuate the electromagnetic brake when it contacts the vehicle. A trip mechanism, which may be photo-electric, starts the fans in each unit on the approach of a vehicle and to lower the duct after a vehicle has passed either by a pneumatic cylinder 27 or by de-energizing the brake 25.
Patent GB-635628-A (GB)
Title: Improvements in plate straining mechanism for use in printing machines
IPC: B41F27/12
Filed: 1947-05-20
Abstract: 635,628. Printing-surfaces. HOE & CRABTREE, Ltd., R. May 20, 1947, No. 13589. Convention date, May 20, 1946. [Class 100 (ii)] Mechanism to strain a planographic printing plate about a cylinder slotted in its periphery to accommodate said mechanism, comprises straining bars guided to move tangentially with their outer faces held at substantially the circumferential level of the cylinder, the plate being secured to the bars only at their outer faces and the whole circumferential extent of the plate being curved about the cylinder surface, and mechanism being provided to move the bars together to effect the straining of the plate. The cylinder has an axial slot 14, Fig. 3, along which lies a rail 22, Figs. 3 and 5, having a plurality of screws 24 actuated by keys inserted in openings 32 through incisions 54 in clamping bars 18, 20 to which the ends of a plate 16 are spot-welded. Blocks 42 are screwed to the rail 22 between the screws, there being no block between the two end screws at either end of the rail. The bars 18, 20 are shaped so as to engage the blocks 42, by means of ribs 50 and notches 46, when they are in contact, in clamped position, the blocks being provided alternately with notches 46 on opposite sides, and the ribs 50 and notches 46 alternating on each bar. The bars can move horizontally together and apart. Between the bars and the sides of the slot 14 are wedge pieces 36, there being one wedge piece alternately on opposite sides extending between adjacent blocks 42 and having recesses 56 to engage the sloping faces of the blocks. Between the end two blocks at either end of the rail, there are wedge pieces on both sides. Each wedge piece has a recess to clear a flange 26 of a screw and a portion 38 bent round to engage between flanges 26, 28 of the screw, so that on turning the screws, the wedge pieces are raised and by contact with the sloping faces 34 of the slot 14 move inwards into contact with the bars, which they thereafter force together into clamping position, rocking of the bars being prevented by the ribs 50 and notches 46. The edge of the plate secured to the bar 20 protrudes beyond the bar to overlap the opposite edge when clamped. The distance between the blocks 42 decreases from the centre to each end of the cylinder, since a greater force is necessary for straining at the ends of the plate. The bars 18, 20 and thus the plate can be adjusted to lie slightly inclined to axial direction. When the plate extends only over a part of the circumference of the cylinder, the bars 18, 20 are accommodated in separate slots. The plates may be of hard material such as rustless steel, or of softer material such as zinc, aluminium or copper. The Specification as open to inspection under Sect. 91 comprises also a construction wherein the bars 18, 20 are secured to the edge of the plate, which does not overlap beyond the bar 20. This subject-matter does not appear in the Specification as accepted.
Patent GB-578842-A (GB)
Title: Improvements in or relating to ordnance
IPC: F41A9/54
Filed: 1942-09-29
Abstract: 578,842. Automatic ordnance. MOLINS, D. W., and MOLINS MACHINE CO., Ltd. Sept. 29, 1942, No. 13672. [Class 92 (i)] Relates to automatic loading appliances in which the round is pushed partly into the breech after which it continues its forward travel by momentum. According to the invention, vibration of the rear of the round is prevented by flared guide elements 11, 12 extending rearwardly from each side of the breech and adjusted to provide a small clearance or tolerance for the base of the round. The invention is shown applied to automatic ramming and loading means for a six-pounder gun as described in Specifications 578,477 and 578,478, The guide elements 11, 12 are formed on plates 1, 2 adjustably fixed by bolts 3, 6 to the standing breech. The breech block 10, shown in closed position, has guides 111, 112 which are in alignment with the guides 11, 12 when the block is in open position. The nose of the round in falling is arrested and guided by an extension 9 of the plate 2. Specification 246,794, [Class 100 (ii)], also is referred to.
Patent GB-377332-A (GB)
Title: Improvements in or relating to cotters or collars for the valves of internal combustion engines
IPC: F01L3/10
Filed: 1931-05-09
Abstract: 377,332. Valve components. PAYNE, A. F., 164, Bromsgrove Road, Redditch, near Birmingham. May 9, 1931, No. 13743. [Class 135.] Spindles.-The valves of internal - combustion engines are provided with segmental collars mounted on their stems which support sleeves carrying the springs. The segmental parts are permanently connected by arms to facilitate mounting and dismounting. The valve 1, Fig. 1, is fitted with a spring 2 which engages a collar 3 on a short tubular sleeve 4 which is internally tapered to form a seating for two or more parts of a collar which engages a neck and collar on the lower end of the valve stem. The halves 5 of the collar are connected by resilient arms 6 formed from a single length of wire. The arms may be bent down or straight, and secured by soldering, or the ends 6a, Fig. 6, may be turned up to engage holes in the parts 5. The half-collars may be formed of sheet metal, the halves and the arms 6 being formed by stamping or pressing from a single blank. Outwardly-directed flanges 7, Fig. 8, are then provided to engage the sleeve 4, the interior of the parts 5 being shaped to suit the valve-stem end. Lubricating grooves are provided in the parts 5 to allow oil to pass freely up the stem.
Patent GB-1401692-A (GB)
Title: Ozonisers
IPC: C01B13/11
Filed: 1972-03-23
Abstract: 1401692 Ozonizers ELECTRICITY COUNCIL 20 March 1973 [23 March 1972] 13759/72 Heading H5H An ozonizer comprises two coaxial tubes within an outer container, one of the tubes being metal forming a metal electrode and the other tube being of dielectric material backed by a conductive liquid electrode, electrical discharge being effected between the metal electrode and the dielectric in oxygen-containing gas, the electrodes being cooled. These may be a plurality of such groups of coaxial tubes within the outer casing. The metal electrodes 10 may be of stainless steel or aluminium and are located between end plates 21, 22, cooling fluid, such as water, passing down the bore of the tubing between inlet 25 and outlet pipes 26, while the dielectric is in the form of tubes 11 of soda alumina borosilicate glass located in end plates 13, 14 and immersed in a conducting liquid such as water. Oxygen-containing gas is passed between the metal electrode 10 and the dielectric 11 via pipe 29 and ozone leaves via pipe 19. The metal electrodes are energized in parallel with A.C. whose frequency can be varied, and the liquid electrode is earthed. The metal electrodes have a reduced diameter where they pass through the end plates to prevent discharge streamers. The dielectric tube may be within the metal tube or vice versa, and the A.C. high potential may be applied to the liquid electrode with the metal electrode earthed.
Patent GB-1215633-A (GB)
Title: Appliance for alternately filling and emptying an enclosure
Inventor: PAVLIN CYRILLE FRANCOIS
IPC: A61M16/00
Filed: 1968-03-21
Abstract: 1,215,633. 633. Pure fluid oscillators. BERTIN ET COMPAGNIE. March 21, 1968 [March 21, 1967], No. 13808/68. Heading G3H. [Also in Division A5 and F1] A respirator incorporates a fluid switching device for alternately pressurizing and evacuating a passage 20 connected to the patient's lungs, a  deformable chamber 25 being incorporated to determine the length of the pressurizing and evacuating periods. In the embodiment shown, a main respirator comprises a nozzle 14 which directs an air jet into a substantially coaxial exhaust passage 18, or passage 20 leading to the patient via a mask, according to the control pressures in control ducts 23, 24. The main respirator is controlled by a smaller, pilot respirator, in which nozzle 13 directs an air jet towards exhaust passage 17 or a passage 19 connected to chamber 25, a feedback passage 27 and control duct 23. In operation with valves 32 and 33 open, and valve 29 closed the air jet from nozzle 13 initially flows through exhaust passage 17 and includes flow from passage 19, thereby reducing the pressure in chamber 25 the reduced pressure acts through passage 31 and control duct 23 to switch the air jet from nozzle 14 into passage 20 to pressurize the patient's lungs. When the pressure in chamber 25 has fallen to a predetermined value, in a time dependent on the volume of chamber 25, which is adjustable by a movable piston 35, this low pressure acts through feedback passage 27 to switch the air jet from passage 17 to passage 19, to pressurize chamber 25 and, through duct 23, to switch the air jet of nozzle 14 from passage 20 to passage 18. Flow through passage 18 induces flow from passage 20 to evacuate the patient's lungs, for a period of time during which the pressure in chamber 25 builds up to a value sufficient to act through passage 27 to switch the air jet of nozzle 13 from passage 19 to passage 17, the cycle then repeating. The degree of evacuation is controllable by valve 33. In the Fig. 6 embodiment (not shown), the pilot respirator is omitted, control duct 23 being connected to the deformable chamber 25 and a branch from passage 20 also being connected to chamber 25 to pressurize and evacuate it, the pressure in the chamber 25 acting through the control duct 23 to control the switching of the jet. The respirator is formed between three superimposed plates, Fig. 4 and 7 (not shown).
Patent GB-951804-A (GB)
Title: Hydrotherapy apparatus
IPC: A61H33/02
Filed: 1961-04-17
Abstract: 951,804. Massage apparatus. B. F. GREGORY. April 17, 1961, No. 13851/61. Heading A5R. [Also in Division B1] Apparatus for circulating and causing pulsations in water in a bath comprises a loop 2 of pipe connected to a blower 28 and having spaced orifices 25 on its inner side, the orifices being so directed that air is discharged into the water at an angle to the pipe axis and the pulsations being produced as the air breaks through the hydrostatic head of water in the bath. Two U-shaped pipe sections 5, 6 are detachably connected through connectors 15, 16 to form an elongated closed loop which is placed at the bottom of a bath. Air from an electric vacuum cleaner 28 is supplied through a flexible electrically-insulating hose 4 and a connector 18 to the loop. The orifices 25 are located on the horizontal diameter of the pipe and the orifices in the loop portions on each side of the connector discharge air in opposed directions to produce a swirling motion of the water which massages a person in the bath inside the loop. So that air will be discharged through the orifices at an angle to the axis of the pipe, an outward bulge 26 is formed in the pipe at one side of each orifice and an inward bulge 27 is formed on the other side of each orifice.
Patent GB-743055-A (GB)
Title: Improvements in and relating to hoists
IPC: B66B9/187
Filed: 1950-06-05
Abstract: 743,055. Builder's hoist; winding and paying out. BRITISH HOIST & CRANE CO., Ltd., and EVANS, P. N. June 15, 1951 [June 5, 1950], No. 13990/50. Classes 78 (3) and 78 (5). A winch-operated hoist such as a builder's hoist with a platform guided on a mast, has a control member for the hoist and a mechanical coupling including a latching member, with a manually-operable member and means for operating the latching member to break the coupling as the result of movement of the platform wherein the pressure tending to hold the latching member in the latching position is derived at least in part from the force applied to the mechanical coupling as shown in Fig. 1, the platform 18 guided on uprights 17 of a mast is operated by a rope 19 from a winch 10. The winch is either brought into engagement with a friction driving pinion or with a brake shoe by the movement of a pair of levers 14 connected to an eccentric mounting for the winch. The levers are counterweighted by weights 15. The levers 14 are connected by a latching member 31 to a manually-operated control rope 25 which exerts a latching pressure and to the loop of a wire rope 34 which is connected to the top and bottom of the mast and has members 46, 50 for engaging indirectly with a projection 43 on the platform. The wire 34 passes round pulleys 37, 39 on the mast and round a pulley 41 on the latch lever 32. The stop members 46, 50 normally engage members 44, 48 pivoted to brackets on the column. The projection 43 on the platform engages the members 44, 48 to shorten the loop and release the latch and apply the brake. As shown in Fig. 3, the levers 14 are interconnected by a cross-bar 55 and have levers 56 pivotally mounted thereto. The levers 56 carry plates 58, the upper ends of which are connected by a cross-bar 59. A sleeve 60 on the cross-bar carries a pair of latches 61, with a detent for engaging the upper crossbar. The sleeve carries a sheave block 64 for the control rope 25 and the lever 32 of the latch device which carries the pulley 41. After the release of the latch the loop of wire 34 is restored and when the operator releases the control rope 25 the upper cross-bar assembly drops and the latch bars automatically relatch. Specifications 627,077 and 743,054 are referred to.