baber/WOPTO huggingface dataset:
Patent GB-777462-A (GB)
Title: Improvements relating to rock drills
Inventor: SMITH DOUGLAS BERNARD
IPC: B23Q11/08
Filed: 1954-04-09
Abstract: 777,462. Percussive drills: CLIMAX ROCK DRILL & ENGINEERING WORKS, Ltd. March 31, 1955 [April 9, 1954], No. 10532/54. Class 124 A coal pick having a reciprocating hammer striking a steel has a collar at the rear end of the steel fitting an enlarged bore in a steel retainer, radial vents directed rearwardly in the front of the bore, and an annular seal fitting round the steel in front of the enlargement to prevent air escaping towards the point of the steel. As shown, applied to a pneumatically operated drill, a steel retainer 3 has an enlarged bore 6 in which the collar 2 of a steel 1 fits, and vents 11 at the front end of the bore to direct air trapped in front of the collar towards the rear of the tool. A sealing ring 7 in the retainer prevents air escaping along the steel. A shield 39, fitted round the exhaust of the tool and fitted with exhaust ports 40, may be rotatably adjusted to direct the exhaust in any desired direction and may be maintained in position by a pin 41 covered by a removable shield 42. An external ring 45 provided with atomizing jets 46 may be provided to give a spray of water around the working position of the steel. A valve 29 may be provided to shut off the air to the tool should the water pressure fail or fall below a predetermined value.
Patent GB-771024-A (GB)
Title: Electrically controlled pneumatic operating device for doors
Inventor: VEDRAL ANTON
IPC: E05F15/02
Filed: 1955-04-12
Abstract: 771,024. Door-operating apparatus. HARDY MASCHINENFABRIK UND GIESSEREI AKT.-GES.GEB. April 12,1955, No. 10533/55. Drawings to Specification. Class 65 (1). A door-operating system comprising a differential pneumatic engine controlled by an electromagnetic valve is provided with a threeposition emergency control valve whereby the engine can be controlled independently of the electric circuit; if pressure fails the door can be operated by hand. In the arrangement described, the small (door-closing) side of the piston is permanently connected to a source of compressed air and the large (door-opening) side is normally connected through the emergency valve to the electromagnetic valve which admits compressed air when de-energized, and vents it when energized. In the second position of the emergency valve the large side of the piston is connected directly to atmosphere, so that the door is closed by any pressure in the system, while in the third position it is connected directly to supply so that the door is opened by any available pressure; in all positions the door is free for hand operation if pressure has failed. The electromagnetic valve is controlled by a rotary switch having successive effective and ineffective positions, and this switch is stepped from any position to the next by a ratchet mechanism actuated by a solenoid controlled by push-button.
Patent GB-288523-A (GB)
Title: Improvements in apparatus for washing vehicles, particularly automobile vehicles
IPC: B60S3/04
Filed: 1928-04-10
Abstract: 288,523. Laigle, M. April 7, 1927, [Convention date]. Hinge and swivelling joints.-In an apparatus for washing vehicles, a water supply pipe A is connected to a flexible pipe B by means of a tap 10 which permits of turning the pipe B about the central vertical axis of the tap. To the bottom of the tap is secured a sleeve 1 upon which is rotatably rounted a collar 3, which is screwthreaded for engagement with a stem 4 secured to the pipe A. A packing washer located in the space between the sleeve 1 and the stem 4 is compressed by screwing the collar 3 on the stem. A lock nut 6 prevents loosening of the collar. Instead of the lock nut a spring blade forming a pawl may be provided on the collar for engagement with notches formed on the stem 4.
Patent GB-375003-A (GB)
Title: Improvements in automatic stopping mechanisms for gramophones
IPC: G11B17/02
Filed: 1931-04-10
Abstract: 375,003. Gramophones. PAWSON, G., Highclere, Fife Road, East Sheen, Surrey, and COLLARO, Ltd., Culmore Works, Culmore Road, Peckham, London. April 10, 1931, No. 10645. [Class 40 (ii).] Comprises an automatic stopping mechanism for gramophones of the kind wherein a feeler moved by a control member is pushed back intermittently by means driven by the gramophone motor. According to the invention, the feeler, which engages the control member by light frictional contact, is connected to a thrust member which is brought into engagement with the control member when the latter is moved at an increased rate so that a thrust is transmitted to cause application of the brake. A V-shaped control member 1 is pivoted at 2 to a baseplate 3 and a lobe-shaped part 5 of a feeler 6, which is pivoted at 7 to the plate 3, rests lightly upon a limb 4 of the control member 1. An arm 10 fixed to the control member 1 lies in the path of the tone-arm T so that, during reproduction, the member 1 is rotated in a clockwise direction, as seen in plan in Fig. 1, and carries with it the feeler 6. At each rotation of the turntable spindle 8, however, the feeler 6 is pushed back again by a finger 12 fixed to the turntable spindle 8, which finger pushes against a screw 13 fixed to the lobe 5. A pawl 16 is pivoted at 17 to one end of a detent 18 that is pivoted at 19 to the plate 3, and a pin 20 on the pawl 16 projects through a slot 21 in the feeler 6. A brake plate 23, pivoted at 24 to the plate 3, is engaged by a nose 22 on the detent 18 to withhold the brake pad 25 from the turntable 9, and a spring 26 is connected between the plate 23 and detent 18. During playing, the feeler 6 oscillates between the positions shown in full and dotted lines in Fig. 1 to cause the tip of the pawl 16 to oscillate close to a serrated edge 27 of the limb 4. When the stylus reaches a quick-pitch groove at the end of a record, the movement of the member 1 is accelerated and the feeler 6 is moved abnormally so that the pawl 16 engages with the serrated edge 27 to connect the detent 18 positively to the control member 1, and upon further movement of the latter the detent is moved and frees the brake which is then applied by the spring 26. To reset the mechanism, the arm 10 is moved in an anticlockwise direction, when a projection 28 on the member 1 contacts with the corner 29 of the brake plate 23 and pushes it round until the nose 22 engages therewith. Stops 30 .. 33 are provided to prevent excessive movement of the parts of the mechanism. The arm 10, which is attached to a block 36, fixed to the control member 1, is pivoted about a horizontal axis 37, and a spring 38 maintains the arm 10 in its elevated position. When the lid of the gramophone casing is closed, it folds the arm 10 down against the action of the spring 38. A modification is also described wherein release of the brake plate 23 also causes the opening of a switch in the circuit of an electric gramophone motor.
Patent GB-372069-A (GB)
Title: Improvements relating to electric signal amplifiers
IPC: H03G3/16
Filed: 1931-04-10
Abstract: 372,069. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Carlson, W. 1a V. ; King's Highway, Haddonfield, New Jersey, U.S.A.) April 10, 1931, No. 10648. Convention date, April 10, 1930. [Class 40 (v).] In a method of volume control the transmission-efficiency of at least one of the amplifying-valves is first reduced by a predetermined amount, and thereafter the signal input voltage and the transmission-efficiency are both simultaneously reduced. As shown, the transmission-efficiency of the screened-grid amplifiers 5, 6 is controlled by means of fixed and variable grid-biasing resistances 15, 18, both shunted by a condenser 21, whilst the signal voltage is regulated by a variable resistance 24 shunted across the input transformer 7. The two variable-contact arms 20, 27 are mounted on a common spindle and a portion 28 of the sweep of the arm 27 is ineffective, so that the applied grid-bias is increased to a predetermined extent, thus lessening the sensitivity of the amplifiers, before the signal voltage input begins to be cut down. Specification 330,211, [Class 40 (v), Wireless signalling &c.], is referred to. Reference has been directed by the Comptroller to Specification 362,502.
Patent GB-935239-A (GB)
Title: Improvements in or relating to liquid pressure brake operating master cylinders
IPC: B60T11/20
Filed: 1962-03-20
Abstract: 935,239. Brake master cylinders. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINEN-UND ARMATUREN FABRIK KOMM.-GESS.]. March 20, 1962 [May 30, 1961], No. 10651/62. Class 103 (1). A tandem brake master cylinder comprises two pistons arranged one behind the other in a common cylinder to pressurize separate front and rear braking circuits, and both of which are mechanically linked to an applying member, e.g. a foot pedal, the piston remote from the applying member having a part passing through the other piston and parts of the two pistons between said other piston and the applying member being disposed to engage opposite ends of a balance beam pivoted to an actuating element of the applying member. The actuating element can be moved laterally to adjust the relation between the forces applied to the two pistons. As shown, a rearward extension of the front piston 16 in the form of a shaft passes through the rear piston 17 and is formed at its rear end with an offset part 18. A balance beam 23 pivoted at 26 within a fork 27 of the actuating element 28 engages the part 18 and also a similar offset part 19 of the piston 17. Pivoting of the beam 23 to allow for differing rates of movement of the pistons and different brake clearances of the two braking circuits is allowed by clearance 29 in the fork 27. Element 28 is slidable in a manually-rotatable eccentric sleeve 30 to enable movement of the element 28 laterally to vary the leverage of the beam 23 on the parts 18, 19 so that a driver can vary the front/rear braking force relationship, e.g. according to the road surface conditions. Play s is provided in the fork 27 to allow for movement of the element 28 in the direction of the axis of pivot 26. A projection 36 of the part 19 engaging a groove in the casing 31 to prevent rotation of the assembly about the axis of the cylinder.
Patent GB-774173-A (GB)
Title: Machines for sharpening microtome knives or similar cutting blades
Inventor: DILWORTH STANLEY
IPC: B24B3/38
Filed: 1953-04-18
Abstract: 774,173. Sharpening cutting edges. WOOL INDUSTRIES RESEARCH ASSOCIATION. April 12, 1954 [April 18, 1953], No.  10660/53. Class 60 A machine for sharpening cutting blades such as those of microtome knives, comprises a lapping plate 4 and a holder 14 arranged to hold the blade 2 against the plate at the desired angle for sharpening, the holder being connected to mechanism arranged to give the blade a lapping motion. This mechainsm consists of a capacitor motor 6 driving through a reduction gearbox 1 two cranks plates 8 coupled by a bar 10 to which is hingedly connected a support 11 having a sleeve 12 to form a swivel mounting for a pin 13 attached to the holder 14. The plate 4 is of plate glass and rests on rubber pads 15 carried in cups 16 fitted to the ends of four pillars 17 supported on ball joints by two pairs of first-order levers 20 with a 2:1 ratio. To adjust the angle between the blade 2 and the plate 4, the pillars 17 are adjusted vertically by a control knob 28 which acts on the levers 20 through a shaft 27, eccentrics 30 and discs 24, the latter being fixed to stems 25 free to slide in sleeves 26. A spring-loaded pin (not shown) co-operates with a serrated wheel 31 on the shaft 27 to hold the mechanism in its adjusted position. A reversing switch may be provided for the motor 6 to enable the movement of the blade to be reversed so as to re-distribute the abrasive material on the plate 4.
Patent GB-513491-A (GB)
Title: Improvements in or relating to metal containers or cans
IPC: B65D43/02
Filed: 1938-04-07
Abstract: 513,491. Tins. CHIVERS & SONS;. Ltd.; and FISON, F. J. April 7, 1938, No. 10669. [Class 66] A tin or can has soldered or seamed to its upper edge a ring or flange B extending inwardly and preferably downwardly; the inner edge being formed with an upwardly extending part D the rounded lower edge D<1> of which receives a dished lid or cover E. The edge of the lid is formed with a groove G containing a sealing medium F. The lid is removed by prising the edge of the lid, by a tool T or by a lever formed integral with or attached to the lid and having an extension which bears against the flange B. The lower part of the sidewall of the cover E may have projections which on insertion are pressed below the edge D'.
Patent GB-725855-A (GB)
Title: Apparatus for making reversible sponge cushions
IPC: B29C33/00
Filed: 1953-04-20
Abstract: 725,855. Cushions. UNITED STATES RUBBER CO. April 20, 1953 [April 29, 1952], No. 10685/53. Class 52 (4). [Also in Group V] Sponge rubber cushions having tubular or like cavities with their longitudinal axes extending the length or width of the cushion and communicating with one another at one end, are moulded from latex foam (See Group V).
Patent GB-1415716-A (GB)
Title: Method of repairing an imperfect pattern of metallized portions on a substrate
IPC: G03F1/72
Filed: 1973-03-06
Abstract: 1415716 Electroless plating R C A CORPORATION 6 March 1973 [9 March 1972] 10703/73 Heading C7F [Also in Division G2] To repair an imperfect metal pattern, e.g. a photomask comprising nickel dots on a glass substrate, it is made more resistant to an etchant by e.g. baking at 340 to 380‹C, sensitized, activated, electrolessly plated with e.g. Ni, then etched to remove undesired Ni. The etching may be carried out using a resist and the mask used in producing the original pattern. The Ni deposit may be hardened by heating to 340 to 380‹C. The Ni bath may be 65g./l nickel sulphamate, 15g./l. sodium hypophosphite, buffered to pH 4 with a mixture of citric acid and sodium citrate.
Patent GB-1075413-A (GB)
Title: Tape- or film-spool winding devices
Inventor: FOHLERT ERICH
IPC: G03B21/43
Filed: 1965-03-15
Abstract: 1,075,413. Cine apparatus. PENTACON DRESDEN KAMERA-UND KINOWERKE VEB. March 15, 1965, No. 10774/65. Heading G2E. [Also in Division G5] A spool winding device comprises a first spindle (6) Fig. 1 (not shown) having a cylindrical spool bearing surface, mounted on a recording apparatus or camera, and a second spindle (18), having a cylindrical spool bearing surface of the same diameter as that of the first, attached to a spool carrier 22, one of the spindles having a coaxial bore (20) at one end, and the other having an engaging coaxial stub (11) to maintain the two spindles in alignment. The stub (11) comprises a shaft 11a, Fig. 2 driven from a drive shaft by means of gear-wheels 16, 17. Surrounding the shaft 11a is a sleeve 12 provided with resilient jaws formed by incisions 13 Fig. 3 (not shown) which engage with a recess 15 on shaft 11a. The sleeve is driven by the shaft by means of friction drive plates 7, 8 held in engagement by means of spring 10. The associated spool, Fig. 1 (not shown) is provided with a cut away portion (28) which engages with a resilient piece 23 on the sleeve 12.
Patent GB-211373-A (GB)
Title: Improvements relating to thrust bearings or the like
IPC: F16C17/06
Filed: 1923-04-20
Abstract: 211,373. Newbigin, H. T., and Michell Bearings, Ltd. April 20, 1923. Thrust bearings.-To distribute the load evenly over a thrust bearing, a self-contained deformable device, in the form of a washer 6 made up, of a series of tiltable pressureequalizing members 9, attached to opposite sides of a flexible diaphragm 10, is placed between a fixed abutment 7 and a rigid member 4 carrying balls, rollers, pivoted blocks or other bearing elements 5. Fig. 1 shows the invention applied to a Michell thrust bearing in which pivoted blocks 5, carried in a ring 4, bear against a thrust ring 3, carried by a collar 2 on a shaft 1. As shown in Fig. 3 the members 9 slightly overlap each other, and the spaces between them form grooves for lubricant which circulates in the direction shown. The diaphragm 10 may be in halves.
Patent GB-579259-A (GB)
Title: Improvements in or relating to the withdrawal of bundles successively from a source of supply
IPC: B64D1/16
Filed: 1944-06-05
Abstract: 579,259. Unpacking bundles. FAIREY AVIATION CO., Ltd., and TIPS, E. O. June 5, 1944, No. 10784. [Class 94 (i)] [Also in Group XXI] Bundles a, b of articles such as leaflets, strips o metallized paper &c each comprising one or a plurality o: articles wrapped ir roll form by ar encircling band of paper or the like are connected together in chain form to facilitate successive withdrawal from a source of supply, the connection of one bundle b with an adjacent bundle a comprising a string or the like, a part c of which is disposed within the encircling band, and a part f which forms a loop e and extends along the length of and outside the band and is tied to the opposite end d. The loop e on the bundle b is engaged by the part f of the bundle a, so that when bundle a is pulled by means of the string along its length it will slide relatively to the bundle a and then pull bundle a, but when the string is pulled outwardly the encircling band will be slit to release the articles. The string may be applied to the band by adhesive or by stitching. A series of bundles are packed in a magazine with the loops e at the rear and the ends d, f at the front, so that on pulling the end of the string of the last bundle, all the bundles will be withdrawn successively. Where the magazine holds groups of bundles end to end and each group consists of a number of banks of bundles, the trailing end of the string of the last bundle of one group is tied by a length of string to the leading end of that bundle in the next group which is to succeed it in the chain. In the case of two such groups the first bundle packed in the front group will be the last in the chain. The magazine may be fitted with a tapered portion leading to a pipeline consisting of a series of tubes, large enough to allow the passage of a bundle, joined together by spherically-seated joints, the last tube leading to a housing for a power-driven drum and a grooved pulley. A length of string from the first bundle passes through the tubes and over the pulley to the drum. As each bundle arrives at the pulley, the string, as it passes to the drum, slits the encircling band around the bundle. The bundles are pushed into an adjustable outlet conduit by succeeding bundles. The conduit is connected by tubes to a distribution point Where the distribution is to take place from an aircraft, the tubes lead to an ejector chamber situated outside the aircraft and comprising two inclined frusto-conical parts. The flow of air through the ejector assists distribution. Where several sub-magazines are stacked one above another, supporting shelves may be arranged in the tapered portion leading to the pipeline.
Patent GB-774692-A (GB)
Title: Improved portable pump
IPC: F04D13/02
Filed: 1954-04-13
Abstract: 774,692. Centrifugal pumps. BLAGDON G. March 22, 1955 [April 13, 1954], No. 10786/54. Class 110 (1). A portable rotary pump comprises a rotary driving member secured coaxially with the impeller at the end opposite an axial inlet to the pump casing and adapted to be engaged for driving the pump, in a chuck of a drilling or other machine. The portable centrifugal pump shown comprises a driving shaft h having inclined dogs h<SP>3</SP> which can be engaged by the chuck of a mine drilling machine. The shaft h is screwed at g<SP>1</SP> on to a shaft g which is connected to the pump impeller shaft n by epicyclic gearing comprising a stationary internally-toothed ring k, planet pinions j carried by the shaft g and a sun pinion m carried by the shaft n. The impeller r is recessed to accommodate a spring-loaded carbon seal s and a rubber gland s<SP>1</SP>. The base c of the pump has peripheral inlet slots; it may be removed and a length of hose coupled to a central inlet v. The outlet u is flanged to take a pipe or hose.
Patent GB-1007594-A (GB)
Title: Improvements in metal casks and like containers and methods of making same
IPC: B65D25/04
Filed: 1961-03-24
Abstract: 1,007,594. Metal casks. GRUNDY (TEDDINGTON) Ltd., and S. W. GRUNDY. March 16, 1962 [March 24, 1961], No. 10878/61. Heading B8D. [Also in Division F1] A cask which dispenses liquid by gas pressure above atmospheric pressure, the gas being contained in one compartment of the cask and exerting pressure on the surface of the liquid in another compartment, comprises a body consisting of upper and lower facing cupsections with walls 10, 10a of sheet metal respectively secured to discs 11, 11a surrounded by rims 12, 12a, welded at its end, a trumpetshaped partition 13 welded at its flared end to the top of the lower section and having its upper end welded in an outlet through the disc 11. The flared end may be stepped to provide a seating for the lower end of the upper body section. A metal band 16 may encircle the cask to cover the welded joint between the sections and partition. The walls are made by bending a sheet of aluminium alloy to cylindrical form, welding the butting edges, cutting on the appropriate diameter and shaping to cask-like form, and the partition by spinning a sheet of aluminium alloy, the partition being closed at its narrow end by a closure such that the contents of the compartment C may be extracted by a suitable cock or valve. The band 16 formed by extrusion is shrunk on to the walls and welded thereto and has rolling rings 17. The discs are dish-shaped and seat in recesses 12b around the rim, the rim, wall and disc being welded together. A central aperture is provided in the top disc and also apertures 22, one for receiving a pressure-reducing valve V and the other for a valve F through which the space G can be filled with gas under pressure. Holes 18 are provided for drainage and handgripping and beads 19, 19a so that the casks can be stacked. Specification 1,007,595 is referred to.
Patent GB-549869-A (GB)
Title: An improved spring hinge
IPC: E05D11/00
Filed: 1941-08-27
Abstract: 549,869. Hinges. WHITFIELD, E. Aug. 27, 1941, No. 10905. [Class 65 (ii)] A hinge pin A has a longitudinal slot housing a spring wire B adapted to coact with grooves in the socket C to restrain movement of the hinge.