baber/WOPTO huggingface dataset:
Patent GB-367432-A (GB)
Title: Improvements in and connected with automatic clutch devices
IPC: F16D43/18
Filed: 1930-11-20
Abstract: 367,432. Friction clutches. STONE & CO., Ltd., J., Deptford, London, and HATCHER, E. C., Instow, Woodside Road, Northwood, Middlesex. Nov. 20, 1930, No. 34954. [Class 80 (ii).] In a centrifugal clutch, particularly for a drive from a vehicle axle, such as is described in Specification 339,978, [Class 80 (ii), Gearing, Variable-speed &c.], wherein centrifugal clutch shoes 1 are subjected to a camming action by the driving member 6 to obtain a quicker and greater grip, the camming action is opposed, to make it more gradual, by a resilient resistance such as a spring or a counteracting centrifugal force. Means for permanently disengaging the clutch, and a thermally actuated safety device may additionally be provided. In the reversible clutch shown, shoes 1, loaded inwards by springs (not shown) are pressed outwards, after initial centrifugal engagement with a driven drum 11, by cams 13 on a driving member 6 engaging cam surfaces 4 on the shoes. The resilient resistance comprises springs 3, Fig. 1, carried in grooves in the shoes and abutting against stops 5 on the driver and 8 in the shoes. The springs surround rods 14 fast on the stops 5 but free to slide through washers 15 into a slot in the stop 8. The springs also facilitate disengagement of the shoes from the drum 11. In a modification there are C springs projecting from transverse slots in the cams 13 and pushed back into the slots by the clutch shoes. Alternatively the C springs may be mounted at one or both ends of the cams 13. The modification shown in Fig. 4 utilizes a counteracting centrifugal mass 18 guided radially in the driver 6 and moved inwards by an internal cam surface 20 on the shoe 1. In order to allow permanent disengagement of the clutch, such as when used for driving a generator supplying heating current, the clutch shoes may be provided with lateral projections which are obstructed from outward radial movement by stops carried on bolts movable into the obstructing position in arcuate slots in a side cover part. To prevent damage due to excessive heating, there may be a layer of fusible alloy between the shoes and their friction linings, the alloy being riveted to the lining and having a tongue and groove connection with the cast-iron shoe. According to the Provisional Specification the shoes may be locked out of engagement by a screw on the flange which may register with a hole or slot in the shoe.
Patent GB-742352-A (GB)
Title: Method of permanently crimping a superpolyamide thread
IPC: D02G1/02
Filed: 1953-12-18
Abstract: 742,352. Crimping yarns and threads. COTONIFICIO DI LOMBARDIA SOC. ANON. INDUSTIRALE. Dec. 18, 1953 [Dec. 20, 1952; June 22, 1953; Nov. 12, 1953], No. 35337/53. Class 120 (3). Superpolyamide thread is permanently crimped by applying thereto a twist of at least 3000 turns per metre, winding on a rigid support such as a bobbin, setting on the support by the action of saturated steam at temperatures of between 110‹ and 115 C. for 3-3¢ hours, and untwisting. The high-twist may be attained in stages and the wound thread treated in a kier under vacuum and dried in a hot air stove at a temperature of 45-50‹ C. before untwisting. Two threads which have been highly twisted in opposite directions in two stages and subsequently backtwisted to the same twist, say 135 left-hand turns/metre, may be doubled together and given a final twist of, say, 135 right-hand turns/metre. Between two stages of high-twisting the thread may be assembled into a skein and dyed.
Patent GB-836612-A (GB)
Title: Improvements in or relating to ladders
IPC: E06C7/44
Filed: 1956-11-20
Abstract: 836,612. Ladders. TYRER, W. H. Oct. 8, 1957 [Nov. 20, 1956]. No. 35392/56. Class 20(2) A foot for a ladder comprises a socket 10 for the ladder stile and a side bracket 12 on which rests a ladder rung. The foot has a base plate 17, with holes (not shown) through which spikes may be driven into the ground, dependent from the socket 10 by a spindle 15 threaded in a sleeve 13 welded to the socket and secured by a ball joint 18 to the plate 17. Locking nuts are provided on the spindle 15 and the sleeve 13 may be split and provided with screws for tightening it to the spindle 15 after adjustment.
Patent GB-1492437-A (GB)
Title: Gas sensitive devices and gas detecting and measuring apparatus
IPC: C04B35/453
Filed: 1975-08-27
Abstract: 1492437 Semi-conductor gas sensing devices DRAGERWERK AG 27 Aug 1975 [5 Sept 1974] 35442/75 Heading G1N In a metal oxide semi-conductor alcohol detector the electrodes are pressed into contact with the semi-conductor. In one embodiment a pair of carbon electrodes are elastically pressed by means of a pre-loaded yoke against respective ends of a cylindrical sintered mass of zinc oxide doped with silver. The device is mounted within a tubular shell which is heated to a temperature of 400-500C and through which the gas to be monitored e.g. water vapour flows. In an alternative arrangement the electrodes are held in position by compression springs. The electrodes are connected in series with a resistor and battery, a series combination of a capacitor and measuring instrument being connected across the resistor, the arrangement being such that the interval resistance of the instrument forms a differentiating unit with the resistor and capacitor so that the instrument indicates the maximum time derivative of current flowing through the semiconductor material.
Patent GB-394252-A (GB)
Title: Improvements in saliva suction devices
IPC: A61C17/08
Filed: 1932-12-15
Abstract: 394,252. Saliva ejectors. BJÍRKLUND, K. C., Norrk÷ping, Sweden. Dec. 15, 1932, No. 35549. Convention date, Dec. 22, 1931. [Class 81 (ii).] In saliva suction devices, a valve inter posed in the suction conduit, is adapted to open automatically to admit air when the vacuum exceeds a pre determined amount In the form shown ir Fig. 1 a spring-pressed ball valve 6, adjustable bv means of the screw 9 or the seat 7, is mounted on the casing 4 which connects the mouthpiece 26 to the tubular connection 2 from the pump. The mouthpiece 26 is removably held in a rubber plug 3 resting against the flange 16 of a pipe 12 opening into the tubular connector 1. In modifications the spring-pressed valve may be replaced by a simple weighted valve member, or, as shown in Fig. 3, a mercury-filled U-tube 19 communicates with the vacuum pump, shown in this instance as a water-jet ejector pump, so as to allow air to bubble through if too high a vacuum is produced.
Patent GB-834721-A (GB)
Title: Improvements relating to hydraulic systems
Inventor: DAVIS JOHN WALTER
IPC: B60T11/30
Filed: 1957-11-15
Abstract: 834,721. Pipe joints. GIRLING Ltd. Nov. 17, 1958 [Nov. 15, 1957], No. 35612/57. Class 99(1). [Also in Groups XXIX and XXXIV] The coupling between a pipe 11, Fig. 1, and a component 10 is provided by a frusto-conical head 12 which is formed on the pipe and pressed against a seating 13 in the component by a screwthreaded member 15. Slackening of the member permits air in the pipe to pass through a bore 16. As applied to a union between a pipe 11, Fig. 2, and a coupling member 20, the pipe is formed with a similar frusto-conical head and held against a seating in a nut 19 by the coupling member 20. In a further embodiment, the end of the pipe 11 which is flared outwardly 21, Fig. 3, and folded upon itself, is pressed against a seating 22 by a member 15.
Patent GB-1133678-A (GB)
Title: Sliding beam for the loading hatches in ships
Inventor: OHLENDORF HEINRICH
IPC: B63B19/22
Filed: 1967-08-03
Abstract: 1,133,678. Hatch beams. VEREINIGTE LEICHTMETALL-WERKE G.m.b.H. 3 Aug., 1967 [9 Aug., 1966], No. 35656/67. Heading B7S. An I-section sliding beam for the loading hatch of a ship has an upper flange 1 with thickened reinforcement edges 2, while the lower flange has no such thickened edges, the top face of the upper flange having a recess 5 for the slidable insertion thereinto of the correspondingly thickened edge 4 of a separate retaining ledge. The reinforced edges 2 may be of rectangular cross-section as shown in Fig. 1 or of circular cross - section as in Fig. 3 (not shown).
Patent GB-1128972-A (GB)
Title: Improvements in or relating to superconductors
Inventor: CARRUTHERS ROBERT
IPC: H01F6/00
Filed: 1965-08-19
Abstract: 1128972 Testing super-conductors UNITED KINGDOM ATOMIC ENERGY AUTHORITY 3 Aug 1966 [19 Aug 1965] 35700/65 Headings H1A and A4D A method of testing a super-conducting cable (see Division H1) formed by a super-conductor in intimate contact throughout its length with a normal conductor of high conductivity, comprises: passing a current through a short length of the cable whilst it is immersed in a cryogenic coolant, and subjected to a magnetic field of known magnitude; momentarily heating a small portion of the super-conductor sufficiently to cause it to go normal and the current to transfer to the parallel normal conductor; repeating the last step for increasing values of current until a value of current, minimum propagating current, is reached at which the super-conductor remains normal; and repeating all the steps for other known values of magnetic field. The cable (1) Fig. 1 (not shown) is connected to a supply (4) and the local heating is effected by a coil (5) connected to an auxiliary supply. The current is monitored by galvanometers (9).
Patent GB-932519-A (GB)
Title: Method of bonding neoprene to fibrous reinforcing materials
IPC: B29C67/24
Filed: 1961-10-04
Abstract: 932,519. Laminates. E. I. DU PONT DE NEMOURS & CO. Oct. 4, 1961 [Oct. 14, 1960], No. 35747/61. Class 140. Neoprene is bonded to a fibrous substrate, such as a woven, knitted or non-woven fabric, or cords, yarns, filaments or fibrous layers, of a nylon, or a polyester, e.g. polyethylene terephthalate or polyhexahydro-p-xylylene terephthalate, or of rayon, cellulose acetate, polyurethane or cotton, by intimately blending, in the absence of a volatile solvent, neoprene with a water-insensitive polyisocyanate (see below), dissolving the blend in a volatile organic solvent to form a mixing solution, coating or impregnating the fibrous substrate with, and subsequently drying the priming solution, applying a layer of curable neoprene composition, and heating the assembly to activate the polyisocyanate and cure the neoprene. The polyisocyanate used is a compound of a di- or tri-isocyanate with an active hydrogen-containing substance decomposable at neoprene-curing temperatures. Specified compounds are those of diphenylmethane-4,4<SP>1</SP> diisocyanate, hexamethylene diisocyanate, triphenylmethane triisocyanate, benzene diisocyanate or cyclohexane diisocyanate with bisphenyl, phenol, thiophenol, acetoxime, ethyl acetoacetate or diethyl malonate. In an example neoprene, powdered limestone, carbon black, pine tar and phenyl-#-naphthylamine are blended in a rubber mill and a compound of bis-phenol and diphenylmethane - 4,4<SP>1</SP>- diisocyanate and zinc oxide are successively added. The mix is dissolved in a solvent mixture of light paraffin and xylene containing a small proportion of coumarone-indene resin and used to impregnate nylon fabric which is subsequently twice coated on each side with further quantities of a similar but more viscous mix from which the isocyanate compound may be omitted. After drying the coated fabric is combined in a calender with a layer of curable neoprene mix and the laminate cured at 340 ‹ F. in a rotary press. The laminates produced may be used for making conveyer and transmission belts, tyres, hose, diaphragms, tarpaulins and similar covers, brattice cloth, water tanks &c.
Patent GB-857854-A (GB)
Title: Improvements in or relating to elevators
Inventor: SPINDLER JOHN EDWARD
IPC: B62D7/02
Filed: 1956-11-22
Abstract: 857,854. Portable conveyers. BLANCH & CO. Ltd., A. B. July 25, 1957 [Nov. 22, 1956], No. 35765/56. Class 78 (1). [Also in Group XXXII] In a portable conveyer having an endless conveying element carried by a support structure 11 which is mounted on a wheeled frame 10, the frame 10 is rectangular in plan and has a ground-engaging wheel 17 at each corner, each journalled in a separate bracket 18 which is mounted for independent swivelling about a vertical axis and is provided with separate releasable locking means to prevent such swivelling. Each bracket 18 swivels in a sleeve 14 on the frame 10, the bracket being bent to displace the axis of the wheel to one side of the axis of sleeve 14. The locking means consists of a dished plate 19 secured to the bracket 18 and a locking peg 22 which is vertically slidable in tubular frame member 12, and is engageable with either of two diametrically-opposed holes 20 in the plate 19. A spring 24 urges the peg 22 towards the plate 19. A bent handle part 23 of the peg 22 is adapted to engage a depression 26 in the member 12 to hold the peg in disengaged position. In use, the various wheels may be locked in forwardly or rearwardly turned positions or left free to pivot as desired for towing &c. In a modification (Fig. 5, not shown) the plate 19 is replaced by a disc having in addition to the two holes 20 a further hole to lock the wheel in an oblique position, so that when all the wheels are so locked the conveyer may be rotated about a vertical axis within the frame 10 for off-loading material picked up from one position to another position at an angle to the first position. Specification 857,853 is referred to.
Patent GB-1201761-A (GB)
Title: Improvements in or relating to grass cutting machines
Inventor: MARTIN DEREK JOHN
IPC: A01D34/695
Filed: 1966-08-10
Abstract: 1,201,761. Hover grass-cutting machine. QUALCAST Ltd. 10 Nov., 1967 [10 Aug., 1966], No. 35768/66. Heading A1F. [Also in Division B7] A grass cutting machine with means for supplying air under pressure to provide an air cushion that partially supports the machine, is equipped with an operator's seat. Three rotary scythe cutters 11, 12, 13 are mounted adjustably on vertical shafts in air cushion chambers 14, 15, 16 rigidly attached to frame 1. The top end of each shaft carries a fan in housing 39 which draws air through wire mesh grill 40. All three shafts are driven from a common power unit mounted in housing 30 via drive shafts 47, universal couplings and bevel gears (not shown). Two levers 59, adjacent to driver's seat 31, resiliently operate the flexible driving tracks 50 and 51 that can be independently raised or lowered to provide driving, steering and partial support for the machine. The tracks are driven from shafts 60, about which they pivot, extending from the power unit, and are so placed as to pass substantially through the centre of gravity of the machine.
Patent GB-866986-A (GB)
Title: Improvements in or relating to vulcanising presses for vulcanising rubber tyres
Inventor: BALLE WALTER
IPC: B29D30/06
Filed: 1957-11-18
Abstract: 866,986. Vulcanizing presses for tyres &c. HERBERT, A., and GUHR, M., [trading as LEONHARD HERBERT MASCHINENFABRIK]. Nov. 18, 1957, No. 35832/57. Class 87(2). In a tyre press having upper and lower mould sections 4, 2, an inflatable member 12 is clamped by members 23, 13 to upper and lower rings 22, 11 which are removable as a unit from the press. The ring 11 is fixed to a bush 10 having projections 14 which normally fit under projections 17 on a sleeve 5, but when the sleeve 5 is rotated by a handle 8, the projections 14 can be aligned with grooves 16 to allow the bush 10 and ring 11 to be removed upwardly from the press. The upper ring 22 is held by a clamp 24. A nut 28 allows the relative movement of the rings 22, 11 to be adjusted.
Patent GB-1403814-A (GB)
Title: Test equipment
IPC: G01R31/04
Filed: 1973-07-27
Abstract: 1403814 Testing switches STANDARD TELEPHONES & CABLES Ltd 27 July 1973 35833/73 Heading G1U In testing a bank of Strowger switch contacts 1, Fig. 3 (not shown) in a telephone exchange, a test apparatus is fixed to the switch assembly by means of hooks 15 and detents 16 and a hydraulic or electric drive is actuated to rotate a convex set of insulating wafers 3-bearing contacts matching the switch contacts-into contact with a bank of convex switch contacts'(4), Figs. 1 and 2 (not shown). Proximity switches 17 detect correct alignment of the two sets of contacts and hooks 19 are thereby actuated to latch the wafer set 3 to the switch contact set. Interconnection and isolation of the switch contacts is then effected by a computer (not shown), connected thereto by cables 20, 21 via the wafer contacts 3. After testing, the hooks 19 are released, the wafer set is moved back to its rest position and drive rods 22 and cranks 24 operate rods 26 to move the wafer set 3 down to engage a further set of switch contacts.
Patent GB-409253-A (GB)
Title: Improvements in and relating to sockets for electric lamps
IPC: H01R33/955
Filed: 1933-12-20
Abstract: 409,253. Electric-lamp holders. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Blake, H. D. ; 1937, Parkway Drive, Cleveland Heights, Ohio, U.S.A.) Dec. 20, 1933, No. 35887. Convention date, Dec. 24, 1932. [Class 39 (ii).] A socket particularly adapted for seriesconnected lamps and enabling a defective lamp to be identified rapidly comprises a pair of terminal engaging members, a pair of resilient conductive strips each electrically connected to one of the members and supporting means holding the strips normally spaced apart but permitting them to be squeezed together, to short-circuit, the lamp or other device connected to the socket. In the example shown, a casing 10 of rubber or other insulating material forms a socket containing contacting fingers 12, 13, and has a pliable extension 14 containing two spring strips 17, 18 integral with the contacts 12, 13 and normally spaced apart by insulators 22, 23. When it is desired to test the lamp, the extension 14 is squeezed and the strips are brought into contact. Humps 20, 21 serve to indicate the direction in which to squeeze.
Patent GB-828237-A (GB)
Title: Improvements in or relating to a machine for lubricating metallic sheets
IPC: B05C1/02
Filed: 1956-11-23
Abstract: <PICT:0828237/III/1> <PICT:0828237/III/2> A machine for lubricating metal sheets 7 comprises a pair of finishing rollers 1, 3, e.g. of oil-resistant rubber or synthetic rubber, for transporting and applying oil to the sheets, oil-supplying rollers 8, 11 engaging the finishing rollers and applying a film of oil thereto, and lubricating strips 14, 141 having lateral edges in contact with the rollers 8, 11. The lubricating strips 14, 141, e.g. of nylon felt, fit in slots in carriers 15, 151, the lower portions of the slots forming chambers 17 which are supplied with lubricant from a reservoir 29 through pipes 23, 24, 25, pump 26 and pipe 27.  The pipes 23 and 24 are provided with gauges 35, 36 and overflow-regulating valves 37, 38, a pressure-limiting valve 43 being also provided.  As shown in Fig. 2, the strip 14 has lateral sealing lips 20, 21 and is hardened at 22, as by impregnation by an oil-resistant resin or synthetic resin. Means may be provided for separating the transporting rolls from the lubricant supplying rollers when there is no sheet between the former.  Cooling means may be provided for the transporting and supplying rollers, and for the oil.
Patent GB-430661-A (GB)
Title: Improvements relating to observation mirrors for motor vehicles
IPC: B60R1/04
Filed: 1933-12-22
Abstract: 430,661. Look - out reflectors for vehicles ; clamps. LUCAS, Ltd., J., and LUCAS, O., Great King Street, Birmingham. Dec. 22, 1933, No. 36096. [Class 103 (ii)] [See also Group XXV] A motor vehicle observation mirror c is gripped between a movable claw or claws g and claws b, formed on or fixed to a plate a, by means of a helical spring or springs which act obliquely on the claw or claws g and cause a lateral pressure to be exerted on the mirror independently of the gripping pressure. As shown, a single movable claw g is formed on a metal strip i passing through a slot f in the plate a and bent to form an abutment h for one end of a spring e which abuts at its other end against a bentin portion of the plate a and forces the strip i against the back of the mirror. The mounting is pivoted frictionally to a bracket j, a convex boss k on the plate a being spring-pressed against a concave seating l on the bracket j. The plate a may be replaced by a device comprising a plurality of arms radiating from a common centre.
Patent GB-1178793-A (GB)
Title: Cloth Laying Machine
Inventor: MERRILL EDWARD M
IPC: B65H45/103
Filed: 1968-01-31
Abstract: 1,178,793. Laying fabrics. CUTTING ROOM APPLIANCES CORP. 31 Jan., 1968, No. 36261/68. Divided out of 1178791. Heading D1S. The subject matter is similar to that disclosed in Specifications 1178791, 1178792, 1178794, 1178795, 1178796 and 1178797 but the claim relates to a fabric laying machine including a carriage having powered motor means for reciprocating over a predetermined path of travel above a table between first and second fold-retaining elements, and switch means for reversing the motor means at the limits of the path of travel, characterised in that the switch means is positioned on the carriage in such a position as to be contacted by a part of the fold-retaining elements upon the formation of a fabric fold therebeneath.
Patent GB-522693-A (GB)
Title: Improvements in or relating to furnace fronts suitable for alternative methods of firing
IPC: F23C99/00
Filed: 1938-12-13
Abstract: 522,693. Furnace fronts. HOWDEN & CO., Ltd., J., and NELOON, W. Dec. 13, 1938, No. 36289. [Class 51 (i)] A forced draught furnace front adapted for liquid or pulverulent fuel and exhaust gas firing comprises an outer casing 1 enclosing a chamber divided into upper and lower compartments 3, 4 by a.horizontal partition 2, the upper compartment being provided with a burner 5 and air director 10 and air admission valves 7 mounted on vertical spindles 13. A damper disc 12 controls admission of air to the air director. Exhaust gases are supplied to the lower compartment 4 through a conduit 8 controlled by a valve 9. During firing by exhaust gases the valves 7 and damper 12 are closed.
Patent GB-738559-A (GB)
Title: An improved trailer coupling for tractors
IPC: B60D1/46
Filed: 1953-12-31
Abstract: 738,559. Tractor couplings. MARTENS, L., and WACHHORST, W. Dec. 31, 1953 [Jan. 7, 1953], No. 36322/53. Class 103 (5). A universally-jointed coupling 1, 2, is carried by brackets 3 secured to rings 4 adjustably bolted around a differential casing 5, so that the coupling may be positioned at any point on an arc around the axle 10 having the axle as centre, by turning and re-bolting the rings 4. Holding means 12 may be provided for the connection of additional devices, and the rings on the casing 5 are held by stop-rings or by stop segments 7 and 8.