baber/WOPTO huggingface dataset:
Patent GB-1172261-A (GB)
Title: Rotary Hydraulic Motor
Inventor: KORHONEN MARTTI
IPC: F04C15/06
Filed: 1967-02-03
Abstract: 1,172,261. Rotary hydraulic motors. M. KORHONEN. Feb.3, 1967 [Feb. 11, 1966], No.5451/67. Heading F1F. A rotary hydraulic motor comprises co-axially arranged rotor, stator and distributer, in which the rotor 1, Fig. 2, closed at its ends by end walls 6, 7, Fig. 1, included a plurality of axiallyextending recesses 15 forming work chambers, and, as shown, surrounds the stator 3 which is fixed to a stationary shaft 4 and includes a plurality of axially-spaced radial channels 23, 24, 25, 26 communicating with radial axially-extending slots 22 mounting slides 2, one more in number than the number of recesses. The shaft 4 includes an inlet duct 16, an outlet duct 17 and a waste duct 18 and together with a rotary slide 5 secured for rotation with the rotor 1 forms the distributer to control the flow of hydraulic fluid to and from the work chambers and the plots 22. In operation, liquid under pressure admitted through the duct 16, passes through radial shaft ports 29 into an annular chamber 27 in the rotary slide 5 and thence by holes 19a in the rotary slide and radial channels 19 in front of each slide 2 in the stator to each work chamber. At the same time liquid from the chamber 27 passes through holes 23a in the rotary slide and channels 23 fitted with non-return valves 13 in the stator to below the slides 2 to assist springs (not shown) to urge the slides into sealing engagement with the wall of the rotor 1. Liquid being expelled from the working chambers from behind the slides 2 through radial channels 20, holes 20a and an annular chamber 28 to the outlet duct 17. At the same time liquid is exhausted from behind the slides 2 to allow a slide to pass a switching area 0 through channels 26 and holes 26a to the annular chamber 28 and outlet duct 17. To reverse the rotational direction of the rotor 1, 16 becomes the outlet duct and 17 the inlet duct, liquid entering the chambers through the radial channels 20 and leaving by radial channels 19. Holes 25a and channels 25 fitted with non-return valves 13 and holes 24a and channels 24 control flow to and from the slots 22. The roles of the rotor and stator may be reversed whence the slide members are fitted in the new outer stationary member.
Patent GB-1093621-A (GB)
Title: Improvements in or relating to transistor amplifiers
Inventor: DAVIES ERIC
IPC: H03F3/191
Filed: 1965-02-08
Abstract: 1,093,621. Transistor amplifying circuits. MARCONI CO. Ltd. Dec. 21, 1965 [Feb. 8, 1965], No. 5463/65. Heading H3T. A transistor amplifier of the tuned emitter type, i.e. one in common emitter connection with a series tuned circuit in the emitter circuit is coupled to a succeeding stage of similar type via an attenuator network, in order to avoid instability. In an embodiment the inductances of the emitter leads of transistors 1, 2 are series-tuned by means of variable capacitors 16, 26 respectively, and the collector circuit of transistor 1, which comprises R.F. choke 17 and shunt resistor 220 is coupled to the base of transistor 2 via a T-network of resistors 22, 23, 24. This network may be chosen so that the signal amplitude at the base of transistor 2 is the same as that at the collector of transistor 1. The T-network may be fed from the collector of transistor 1 via a transformer (Fig. 2, not shown), or may be located on the collector side of D.C. blocking capacitor 21 (Fig. 3, not shown).
Patent GB-1466534-A (GB)
Title: Cold cathode diplay device and method of making such devices
IPC: H01J17/49
Filed: 1975-02-10
Abstract: 1466534 Cathode display device BURROUGHS CORP 10 Feb 1975 [8 March 1974] 5530/75 Heading C1M A cold cathode display device is made by screening on to a prepared base-plate (e.g. of glass or ceramic) a mixture, in a vaporizable vehicle, of a metal powder (e.g. Ni, Mo or stainless steel) and a resistive glaze material (defined as an electrically conductive oxide dispersed in a glass frit with optional additions of metallic modifiers), heating to drive off the organic solvents and firing to bond the material to the baseplate. The oxide in the glaze material may be of Nu, Sn, Cd or Tl and the vehicle may be ethyl cellulose in butyl carbitol acetate. The firing is preferably for 5-15 minutes at 500‹-600‹ C. in nitrogen and it is possible to enhance the glow spreading ability of the cathode by post-heating it for 10-60 minutes at 400‹-600‹ C. in air. The metal powder may be 2-30Á in size.
Patent GB-563981-A (GB)
Title: An automatic expansion valve, particularly for small refrigerators
IPC: F25B41/06
Filed: 1943-04-07
Abstract: 563,981. Valves. SAUTER AKT.-GES. FABRIK ELEKTRA APPARATE, F. April 7, 1943, No. 5543. Convention date, April 30, 1942. [Class 135] In an expansion valve for refrigerators, an elastic hollow body 4 having an internal spring 9, has its end 6 adjustably screwed into the housing 1 and its end 7 engages a pin 27 by which it may open the valve 19 against spring action. The valve and the hollow body may be removed through openings normally closed by members 16, 30 respectively provided with an inlet 25 and an exit to the vaporizer.
Patent GB-781690-A (GB)
Title: Improvements in or relating to driving mechanisms for electro-acoustic sound recording and reproducing apparatus
IPC: G11B5/00
Filed: 1956-02-23
Abstract: 781,690. Reversing gearing; shaft couplings. PROTONA PRODUKTIONSGES FUER ELEKTRO-AKUSTISCHE GERAETE GES. Feb. 23, 1956 [March 5, 1955], No. 5581/56. Class 80 (2). A friction drive reversing gear has a revolving mass flexibly coupled to the driving roller. In an electro-acoustic recording and reproducing device the driving roller 5, driven from the driving motor, is connected to a large solid drum 2 and a small solid drum 4 by a spiral spring 14, the roller 5 being loose on the connecting shaft 3. When the assembly is moved to the right a frictional covering 7 drives the reverse driving plate 8, and when moved to the left a covering on the drum 4 drives the forward disc 10. In a modification the spring is replaced by a soft rubber disc.
Patent GB-1373834-A (GB)
Title: Rolling bearings
IPC: F16C33/58
Filed: 1973-01-23
Abstract: 1373834 Bearings TIMKEN CO 23 Jan 1973 [7 Feb 1972] 5675/72 Heading F2A A cup for a tapered roller bearing comprises a member 1 having a conical bore and a raceway constituted by a shell 2 of substantially constant wall thickness, the shell being retained in the bore under a continuous state of compressive hoop stress. The shell is retained by a flange 4 which is deformed into contact with the end of the shell after assembly. The end adjacent the flange 4 may be provided with anintegral or separate roller-retaining flange, or alternatively a mounting-ring for a seal. The shell is formed by pressing or cold-forming, may be heat-treated before assembly, and may be ground internally after assembly. The member 1 is of metal or plastics.
Patent GB-608438-A (GB)
Title: Improvements in padlocks
IPC: E05B67/02
Filed: 1946-02-23
Abstract: 608,438. Padlocks. ROBINSON, G. C., JONES, T., and ROBINSON, G. J. Feb. 23, 1946, No. 5688. [Class 44] In a padlock of the kind having a coverplate hinged to the body so that a paper seal can be enclosed to cover the keyhole, the body is cast and has an integral base flange 20 at the sides and in front, a body plate 11 secured to the body for closing the open front face and a cover-plate 23, Fig. 3, formed to cover the body plate and the two sides and top of the body. The body plate 11 has a slot 21 at its lower edge and two projections 19 which pass through openings in the flange 20 and are riveted over. The cover-plate has a tongue 22 which engages the slot and lateral projections 24 on the tongue which retain it in the slot. The flange 20 should be a flush fit with the three surfaces of the cover-plate. The coverplate is normally retained by the hasp 15 engaging the hole 20 in the top 26.
Patent GB-908095-A (GB)
Title: Improvements in or relating to refuse containers
IPC: B65B67/12
Filed: 1961-02-16
Abstract: 908,095. Sack holders. LEVY, S. C. April 20, 1961 [Feb. 16, 1961], No. 5717/61. Class 58. In a refuse sack holder the open end of a disposable bag, e.g. of polythene, paper or foil, is passed up through a frame member 10, preferably of rectangular shape, and is turned down over the rim to be frictionally supported clear of the ground. The frame member 10 is secured to a vertical wall by one or more 'S' support brackets 11, the lower limb 12 of which is screwed to the wall whilst the upper limb 14 is attached to the inside face of the frame member 10. A strut 18 extending from the bracket carries the hinge 20 of a wood, plastic, or hardboard lid 21.
Patent GB-1442587-A (GB)
Title: Domestic sweeper for carpets rugs or other floor coverings
IPC: A47L11/33
Filed: 1975-02-11
Abstract: 1442587 Carpet sweepers MOULINEX SA 11 Feb 1975 [21 Feb 1974] 5776/75 Heading A4F A carpet sweeper has a casing 10 provided with wheels 12 and a pivoted handle 14, and within the casing a cylindrical brush 18 mounted opposite an opening in the casing bottom at the front end thereof, an electric motor 30 housed in the rear end of the casing and coupled to the brush 18 to rotate it, and a removable dust collecting pan 48 located between the brush 18 and the motor 30. The pan 48 has a hinged lid 62 and is removable through an opening in the top wall 44 of the casing 10 normally closed by a pivoted or removable cover 46.
Patent GB-1414599-A (GB)
Title: Holders or fastening devices for absorbent pads
IPC: A61F13/15
Filed: 1974-02-08
Abstract: 1414599 Napkins; pad holders O T HEURLEN 8 Feb 1974 [9 Feb 1973] 05868/74 Heading A3V  A holder for absorbent pads, e.g. for infants, comprises a central rectangular portion 31 with securing strips 32 at each corner, together with holes 34 near each corner. The end of the central portion may be folded over, or the strip may be doubled over etc. (Fig. 6) to hold the end of the absorbent pad 20, and the strips then passed through the adjacent holes so as to form a trough-like holder. The folded end or the doubled strip may be heat sealed at points 35 or round the periphery 36 of the holes to keep them in the folded state. The holes may be D shaped with only the curved part cut through, so that a flap remains, attached along the straight part of the D.
Patent GB-129254-A (GB)
Title: Improvements in or relating to Electric Switches.
IPC: H01H13/02
Filed: 1919-03-10
Abstract: 129,254. Benjamin Electric, Ltd., (Assignees of Benjamin, R. B.). July 3, 1918, [Convention date]. Retractive switches; switches, guide action; covers and lids.-A snapaction push-button switch comprises a plunger 28 retracted normally by a spring 29<a> and working in guides in a frame upon cars 42 of which is pivoted a U.shaped contact lever 44 embracing the plunger. A spring 45, surrounding a rod 46 which is pressed by the spring against a notch in the side of the plunger and passes through a hole in the free end of the contact lever, normally holds the switch open by pressing against the free end of the contact lever. Pressure upon the knob 29 on the plunger carries the inner end of the rod 46 past a dead-centre, and the spring 45 closes the switch by a snap action on its two contacts fixed in the base. The switch is enclosed in a watertight case adapted for screwed connexion to conduit tubes, the switch base being supported on lugs in the base of the case, which is closed by a screw cover. In one form, the push button may be operated through an aperture in the cover which is closed by a diaphragm 48 of waterproofed leather or like material. In a modified cover, shown in Fig. 12, an extension plunger 54 passes through a gland in the screwed cover; its lower end is in contact with the push-button 29, and the switch may be held in its closed position by rotating the extension plunger after depression, a transverse bar 56 therein engaging with cam surfaces on the under side of the cover. In another form, an operating-rod passing through a gland in the cover is operated by a lever resting upon its upper end and pivoted to a lug rising from the side of the casing.
Patent GB-754234-A (GB)
Title: Foam forming and projection nozzle
IPC: A62C31/00
Filed: 1954-03-01
Abstract: 754,234. Making foam. TECALEMIT, Ltd. March 1, 1954 [Oct. 8, 1953], No. 5955/54. Addition to 742,087. Class 47 In a foam-forming and projecting nozzle as described in the parent Specification, flexible rods 17 lying in the surface of a truncated cone are arranged in front of the divergent portion 12 of the venturi device. The rods may be of circular or triangular section and may be straight or curved.
Patent GB-968123-A (GB)
Title: Apparatus and method for slitting and splicing film
IPC: G03D15/04
Filed: 1962-02-16
Abstract: 968,123. Slitting and splicing film. EASTMAN KODAK CO. Feb. 16, 1962 [Feb. 17, 1961], No. 5958/62. Heading G2C. A single-width film strip is formed from a double-width strip by slitting the latter down the middle, winding one half on to a reel, and storing the other half in a receiver, in such a manner that the two intermediate ends can be introduced to a splicer for splicing together, and at the same time a leader strip is spliced on to the leading end, both splicing operations being carried out together. The exposed double film strip 20 is represented in Fig. 7 as a length of 16 mm film having a first row of images running from end 1 to end 2, and then (the reel of film having been inverted in the camera, and run through a second time) a second row of images running from end 3 to end 4. This strip is slit down the middle and the two lengths spliced together to form the final 8 mm film strip. The film strip 20 is mounted in the form of a roll 10 on a supply spindle 12, and led between the cutting discs 23, 24 of a conventional film slitter 13. The separate strips then pass into a guide mechanism 61. The front end 4 of the second strip is guided downwards through a curved track 66 until it has just entered the upper part of a container 57. The front end 1 of the first strip has meanwhile been guided along a shoot 74. At this point the film feed is stopped. End 4 of the second strip is attached to a take-up reel 91, and the operator inserts a finger into a recess 78 in the mechanism 61 to push end 1 of the first strip along a further guide 81 until it just protrudes therefrom. The film feed is then re-started, the remainder of the first strip accumulating inside container 57 in the form of loops 92, while the remainder of the second strip is wound on to reel 91. A conventional splicer 36 is positioned as shown, having two pairs of clamping jaws 43, 44 and 45, 46, separated by a stationary blade 38. A length of leader strip 83 is unwound from a reel 16, severed, and one end placed, dull side up, on pins 37 at the rear of the lower jaw of the left clamp 44 (Fig. 9). The free end 3 of the second film strip, which is now wound on reel 91, is placed emulsion side up on the front pins 37 of the same jaw. The two ends are then trimmed in the usual way. End 1 of the first film strip, which has been protruding from guide 81, is placed emulsion side down on the rear pins 37 of the right lower clamp jaw 46, and the other end 2 of the same strip is withdrawn from the container 57 and placed emulsion side up on front pins 37 of the same jaw. Ends 1 and 2 are now trimmed also. The splicing of end 2 to end 3, and of end 1 to the leader, is then carried out together in one operation. After splicing, the remainder of the film is wound on to spool 91, where it is now in the form of a single complete length of single-width film with a leader strip at the front end.
Patent GB-1065224-A (GB)
Title: A method and apparatus for cooking food
IPC: A47J39/00
Filed: 1965-02-11
Abstract: 1,065,224. Egg-cooking apparatus. A.G. FœR TECHNISCHE STUDIEN. Feb. 11, 1965 [Feb. 20, 1964], No. 6007/65. Heading A4D. [Also in Division F4] Eggs are cooked by placing them in the upper part 21 of a housing and closing a cover member 34 which operates manually preset timing and switch means 32 connected to an electric heater 26 and a motor driven fan 23 so that heated air is forcibly circulated around the housing for a preset period, at the termination of which the timing and switch means effects opening of the cover member, de-energization of the heater and, later, after a further period during which the fan circulates cold air to cool the cooked eggs, de-energization of the fan motor. A thermostat is included in the heating circuit to control the air temperature, and the timing and switch means 32 is preset by rotating a knob 29. The timing means may comprise a clockwork mechanism which is wound up by rotating the presetting knob 29.
Patent GB-335874-A (GB)
Title: Tool for punching, drawing and off-setting of boxes in one operation
IPC: B21D37/08
Filed: 1930-02-24
Abstract: 335,874. Blechdosen & Plakatfabrik G. Krõmer, Kommandit Ges. Feb. 25, 1929, [Convention date]. Cupping.-Round sheet metal " tins " Fig. 2 with smaller diameter at the upper edge to receive the lid are formed from sheet metal which is first cut by the lower edge of a combined cutting and expanding die a then cupped in the same movement by a draw ring die band then bulged out over the edge h by the segments of die e which move out radially when pressed down by the. cone f which is itself forced by the head g acting through the bottom of the " tin " which it presses in, in the process. Spring pressed balls i in the die a cause the formed tin to be lifted with the die until it is stripped off by the block g. The cone f may be made of rubber.
Patent GB-326968-A (GB)
Title: Small cinematographic projector for through-projection, using an endless film
IPC: G03B21/32
Filed: 1929-02-25
Abstract: 326,968. Kolm, L. Feb. 25, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 23, 1929]. Kinematograph apparatus. - In film-winding apparatus for endless films in which the bulk of the film hangs from a supply roller in the form of a loose coil of many layers, the supply roller 45 is provided with sprocket teeth engaging the perforations, and is geared to the feed sprocket 46 returning the film to the outside of the coil, so that the sprockets rotate at the same speed in opposite directions. In the apparatus described the source of power consists of a motor 21 the shaft 22 of which drives the shaft 24 of the beater 29, which in turn drives the shutter 52 and also the shaft of a re-winding sprocket 33. An inclined shaft 37 is driven from the shaft of the rewinding roller 33 and has worm gearing 39, 40 driving the shafts of the sprocket 45, 46. The sprocket 33 is connected to its spindle detachably by expanding the latter so as to allow of correctly positioning the film in relation to the gate. Guide pulleys 58, 59 and forks 53, 54 are provided. The Specification as open to inspection under Sect. 91 (3) (a) describes also (a) a construction of lamp casing which is detachably secured to the projector and is housed in the projector casing when not in use, (b) a wide-angle objective, (c) a. construction of projection-screen consisting of a mat celluloid plate between two sheets of glass mounted on the back of the projector casing or on an expanding extension thereof, and (d) a safety-device consisting of a spring-controlled arm carrying the guide roller 59,'which on breakage of the film operates to cut off the electric power supply to the apparatus. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1490921-A (GB)
Title: Insulated roofing structure and method
IPC: E04D13/16
Filed: 1975-02-13
Abstract: 1490921 Roofing slabs CARROLL RESEARCH Inc 13 Feb 1975 [8 July 1974] 6087/75 Heading E1W A roofing structure comprises roof support members 30, roof decking 31, and gypsum plaster board 32 covered by a layer of synthetic polymer foam 33 which has a waterproof wear resistant upper surface 16, 17. The plasterboard and foam are joined by staples 37, and the foam is preferably polystyrene or polyurethane If the foam is polyurethane the waterproof surface 16 may be applied directly to the foam, but if it is polystyrene a second gypsum plaster board 34 is interposed between the foam layer 33 and the waterproof surface 16. The assembly may be attached to a steel roof deck 31 by self tapping screws 35 in which case the plaster board is <SP>3</SP>/ 6 " thick, or it may be attached to a precast wood fibre cement bonded board, Fig. 2 (not shown), in which case the plaster board is ¢" thick. The wood fibre board may be supported by sheet metal beams which have a central vertical web, two symmetrical legs extending downwardly at an angle of between 45‹ and 75‹ to the horizontal with horizontal flanges at their lower edges, and a stiffening member in the form of a triangle at the top of the web, Fig. 2 (not shown). Grouting is provided between adjacent slab assemblies.
Patent GB-745538-A (GB)
Title: Improvements in or relating to electrical gas-discharge tube circuits
IPC: H03K23/82
Filed: 1953-03-05
Abstract: 745,538. Multi-staBle state circuits. GENERAL ELECTRIC CO., Ltd., and BEESLEY, J. H. April 28, 1954 [March 5, 1953], No. 6180/53. Class 40 (6). [Also in Group XIX] A circuit comprising gas discharge tubes has a saturable core electromagnetic device associated with one of the tubes so that when a signal is applied to its trigger electrode its becoming conductive is dependent upon the state of magnetization of the saturable core which is itself dependent'upon whether any other tube in the circuit is conducting. The Figure shows a portion of a gas-tube counting chain in which cold-cathode tubes V1, V2 are interconnected by a saturable transformer 14. Winding 4 has the input pulses to be counted applied to it and also a biasing potential which determines the saturation of the core, so that only when tube V1 is conducting does the core operate at the upper bend of its saturation curve, Fig. 2 (not shown), and negative pulses applied at 4 are effective to reduce the flux and produce a pulse in winding 6 which in association with the positive bias applied to the trigger electrode causes tube V2 to fire. When tube V2 fires the voltage drop in resistor R4 causes V1 to be extinguished. If when an input pulse is applied to winding 4 the associated tube V1 is not conducting the core is biased to the lower bend of its saturation curve, Fig. 2 (not shown), so that the negative pulse is ineffective to reduce the flux in it and no trigger pulse is applied to tube V2. The biasing of the core may be effected by a permanent magnet instead of by use of a biasing current in one of the transformer windings.
Patent GB-589109-A (GB)
Title: Improvements in grilling and toasting apparatus
IPC: A47J37/08
Filed: 1945-03-12
Abstract: 589,109. Bread-toasting machines. CRYPTO, Ltd., and WILSON, E. P. March 12, 1945, No. 6186. [Class 28 (i)] In a toaster, the slices are arranged with their cut faces vertical in a magazine to one side of but extending into the path of a conveyer 2 with prongs 12 which push the slices through a channel between heaters 13. The slices on a platform 1 are held between a stop 3 and a pad 8 which is mounted in a slot in a spring-controlled lever 7, and moved transversely of the conveyer in a straight line towards the channel. The prongs 12 on the conveyer have cross-pieces 23 which engage a ramp 24 to prevent sagging. The toast is held vertically in the channel by guide wires 15 and by a shallow trough 14 mounted clear of the prongs. Entry and exit slots 4 for the slices are provided in the cover 5 which is lagged and has adjustable vents 29. A speed control 25 and an indicator lamp 26 are provided for the conveyer motor which has a friction clutch to prevent stalling. A two-heat switch 27 with lamps 28 preferably controls the heaters which may be arranged to give even heating of the toast. The feed-mechanism 7, 8 may be replaced by a slope and the slices pressed by a weight; alternatively pressure may be maintained on the pad 8 by a cord and pulley arrangement.