baber/WOPTO huggingface dataset:
Patent GB-113384-A (GB)
Title: A Double Power Transmitter for Sewing Machines.
Inventor: DAVIES EDWARD
IPC: C03C17/245
Filed: 1917-05-19
Abstract: 113,384. Davies, E. May 19, 1917. Sewing-machines; starting and stopping gear.-Relates to power transmitters for sewing-machines as described in Specification 29707/13, and is more particularly adapted for use with a bench as described in Specification 102,764. The power-shaft carrying two driving-disks h passes through a hanger a having a short loose sleeve e carrying one or more pressure springs f and a long loose sleeve g. The springs act through the washer y, distance sleeve z, washer v, distance sleeve u, anti-friction washer t, and shoulder r to move the driving-pulleys n into contact with the driving-disks when released by depressing a treadle and moving the end 3<1> of a lever 3 out of contact with the washer v. A spring 4 returns the driving-pulley to its position of rest in contact with the braking surface m on the hanger. The machines driven by the pulleys may be independently controlled or may be under the control of one operator by connecting both the levers 3 to a single treadle. In a modification, the sleeve g is omitted. The ends of the hanger are flanged at k to form an oil-well, and oil is distributed to the bearings by metal disks with tongues s' and returned to the well through holes 7 in the bearings.
Patent GB-1381841-A (GB)
Title: Aerator and a method of aerating a liquid
IPC: B01F3/04
Filed: 1973-02-14
Abstract: 1381841 Aerating and circulating liquids ENVIROTECH CORP 14 Feb 1973 [16 Feb 1972] 7272/73 Heading B1C In a method and apparatus for dispersing a gas in a liquid a rotatable shaft 26 has an axial flow impeller 32 and means 34 for shearing gas injected at 31; as described the shearing means may .be a hollow cylinder with an open bottom and closed top and with a slotted. side wall (see Fig. 3, not shown); the slots may alternatively be defined by flat tangential plates (38, Fig. 2, not shown). In operation the shaft is rotated so that the impeller flow is downward; gas is received in the cylinder, sheared with bubbles -as it passes out through the slots and entrained in the circulating flow as shown. The cylinder may have a ring (39) to strengthen it and promote hydrodynamic stability; the impeller may have flat blades angled at 45 to the horizontal, or twisted propellor-like blades. Gases used may be air, oxygen, carbon dioxide, nitrogen or organic gases.
Patent GB-217314-A (GB)
Title: Improvements in and relating to pistons of internal combustion engines
IPC: F02F3/00
Filed: 1923-03-13
Abstract: 217,314. Sproson, H. March 13, 1923. Pistons.-A piston comprises a head 3. of aluminium alloy, connected by lugs 6 to a ring 5 formed with gudgeon bosses 4. The skirt A, of cast iron or steel, is pressed or screwed on to the ring 5, its upper edge bearing against the head 3. The gudgeon-pin passes through the skirt and the ring 5 and locks them together. The skirt is of reduced diameter in the neighbourhood of the gudgeon-pin.
Patent GB-270458-A (GB)
Title: Improvements in collapsible umbrellas
IPC: A45B19/06
Filed: 1926-03-16
Abstract: 270,458. Haupt, H. March 16, 1926. Telescopic umbrellas; ribs; sticks. -A telescopic umbrella comprises a stick in sections which, together with the stretchers, collapse into a hollow handle, and collapsable ribs which fall outside of the handle. The stick comprises tubular members 3 and 4 held in extended position by a catch 7 which also holds the umbrella open. The section 3 is fitted with a piston-like guide 6 riding on further sections 1, 2 inside the handle 5, a second catch 11 holding these parts extended. The ribs consist of sliding parts 14, 13 and the stretchers 17 are pivoted to members 20 having depending lugs 21 riding between rings 15, 16 on the rib sections 14. 13 respectively. The outer rib sections 13 are furnished with spring catches 23 engaging the rings 15.
Patent GB-1533328-A (GB)
Title: Control system for fluid actuator
IPC: F15B11/08
Filed: 1976-02-24
Abstract: 1533328 Fluid-pressure servomotor systems ABEX CORP 24 Feb 1976 [16 April 1975]  07317/76 Heading G3P A fluid actuator 13 is controlled by a variable displacement pump 10 and is connected to a valve 26 for sensing the average of the fluid-pressures on opposite sides of the actuator piston 14, the valve relieving pressure to a reservoir R or adjusting the output of a make-up pump 17 for maintaining the average at a desired value. Flutter of an aircraft control surface connected to the actuator is thus avoided. The pump 17 supplies enough fluid to compensate for leakage when the pump 10 is set to zero displacement and is adjusted in relation to the pump 10 by varying the volume between a pair of servomotor pistons 51, 53 in response to movements of the valve 26. The pump 17 also supplies the difference in volume between the head and rod ends of the actuator when the latter is being extended. A further servomotor piston 20 adjusts the displacement of the pump 10 to control the position of the actuator 13 and is in turn controlled by a torquemotor operated pivoted jet 62 receiving an electrical feedback signal from a position detector 59 through an input controller 58. A spring 67 provides feedback from the piston 51 to the jet. If the pressure in supply lines 11, 12 falls too low due to pump failure opposite sides of the piston 14 are inter-connected through a throttle 100 by a by-pass valve 90 responsive to the pressure in a line 47. Rod and head end pressures in the actuator are communicated to opposite sides of a piston 77 to operate a valve spool 72 if either pressure becomes excessive, the spool causing an adjustment of the pump control piston 20. In a further embodiment, this latter arrangement, the by-pass valve 90 and the pivoted jet 62 are omitted. In a third embodiment, the pump displacement controls are connected by a rigid link (226) Fig. 5 (not shown) and a further pump (227) driven by a prime motor supplies make-up fluid and a servovalve (220). A fourth embodiment employs an actuator in which both sides of the piston are connected to a rod (316, 317) Fig. 6 (not shown) and the make-up pump (323) is driven from the shaft of a single variabledisplacement pump (310) controlling the actuator.
Patent GB-1158056-A (GB)
Title: Improvements in or relating to Rotary Printing Machines
IPC: B41F31/00
Filed: 1967-02-15
Abstract: 1,158,056. Inking-apparatus. MASCHINENFABRIK AUGSBURG - NURNBERG A.G. 15 Feb., 1967 [19 Feb., 1966], No. 7355/67. Heading B6C. A rotary printing machine having a plate cylinder which can be rotated in either direction, is provided with an inking system, part of which can change its direction of motion in response to changes of motion of the plate cylinder, and part of which rotates in one direction only, characterized by an auxiliary motor which drives an ink distributing roller during stoppages in printing, e.g. when washing, a disengageable coupling being provided between the plate cylinder and the inking system. Fig. 1, illustrates a system wherein during printing, a gear 20 on plate cylinder 2 drives transfer rollers 6, 7 and an ink distributing roller 11, the other rollers of the system being driven by friction. On operation of a push-button (not shown), a clutch (21) (Fig. 3, not shown) disengages the drive between cylinder 2 and the inking system, the forme rollers 3, 4, 5 are withdrawn from plate cylinder 2, an auxiliary motor (28) (Fig. 2, not shown) is started which drives distributing roller 11, and, preferably a washing device is brought into an operative position while the ink duct 12 is slid into a washing position.
Patent GB-714954-A (GB)
Title: Improvements in or relating to elastomer compounds and improved compounding process therefor
IPC: C08J3/18
Filed: 1952-03-24
Abstract: An elastomeric composition comprises a synthetic rubber prepared by emulsion polymerization of a material comprising at least one conjugated diolefin at a temperature below 15 DEG  C. the rubber having a raw Mooney value of at least 90, and between 15 and 50 parts by weight of a softener per 100 parts by weight of rubber.  Specified diolefins are butadiene, isoprene and pentadiene and materials specified as copolymerizable therewith are styrene, acrylonitrile and methyl methacrylate.  Specified softeners are liquid conjugated diolefin polymers, palm oil, rape oil, olive oil, linseed oil, castor bean oil, soya bean oil, tung oil, bitumens, gilsonite, rafaelite, asphalts, pine tar, paraffin wax, mineral oils, oleic acid, stearic acid, palmitic acid, lauric acid, ceresin, naphthalenes, wool grease, carnauba wax, glycerol, glyceryl monostearate and monooleate, phenol-formaldehyde resins, poly-alpha-methyl styrene, polystyrene, dioctyl phthalate, dioctyl sebacate, polybutene, zinc resinate, cumarone resins and dihydroabietic acid.  Reinforcing agents such as carbon blacks, ferric oxide, magnesium carbonate, titanium dioxide, zinc oxide, hydrated alumina, kieselguhr, slate dust, zinc peroxide, zinc chloride, lead peroxide, lead oxide, chlorinated paraffins, glue, barytes, fossil flour, lithopone, clays, finely divided silica and whiting may be added.  Lists of the usual vulcanizing agents, accelerators, and anti-oxidants are given.  The composition may be prepared by adding a dispersion of the softener to a latex of the rubber or the latex may be coagulated and the softener milled in.
Patent GB-477380-A (GB)
Title: Improvements in and relating to adhesion
IPC: C08J5/12
Filed: 1936-03-23
Abstract: The adhesion of rubber to other materials is improved by pretreating the rubber, or the other material to which it is to be united with an adhesive, with an aqueous solution or dispersion of heat - hardening aldehyde resinforming materials, drying the adhesive and effecting adhesion of the rubber and material while converting the resin-forming materials into infusible insoluble resin.  If rubber is to be caused to adhere to other pretreated material the adhesion may take place after the conversion into infusible resin.  Suitable resin-forming ingredients include polyphenols such as resorcinol, phloroglucinol or orcinol with or without some phenol or salicylic acid and aldehydes such as formaldehyde, acetaldehyde or furfurol. Small amounts of condensing agents such as caustic soda, caustic potash, or hexamethylenetetramine may also be present.  Aqueous dispersions of synthetic or natural rubber and accelerators, vulcanizers, stabilizers or dispersing agents for them, casein, glutenous materials and other water - soluble adhesives may be included in the composition.  In examples: a solution containing resorcinol, formaldehyde or furfurol, sodium hydroxide and crude rubber latex is used to coat a steel tank which is afterwards coated with rubber, viscose rayon or cotton cord, fabric, paper, or leather which is afterwards stuck to rubber; a similar composition containing a poly - chlorobutadiene latex is used to stick polychlorbutadiene to rubber, metal, wood, ceramic, glass or cellulosic material; a composition containing resorcinol, formaldehyde and sodium hydroxide is used to bond rubber to wood, leather, cellulose or resinous products; an aqueous composition comprising phloroglucinol, formaldehyde, sodium hydroxide and natural latex is used to bond rubber to cellulose acetate or rayon cord.
Patent GB-180778-A (GB)
Title: Stencils for producing facsimile copies of writings and the like on rotary duplicating machines
IPC: B41N1/24
Filed: 1921-03-10
Abstract: 180,778. Carter, M. J. D. March 10, 1921. Stencils.-A stencil sheet for use on rotary duplicators is prepared from a sheet of dental or Yoshino paper by means of a process substantially the same as that already known in connection with the production of stencils from other kinds of paper. The sheet is first coated with a varnish preferably consisting of resin dissolved in acetone, or in methylated spirits, or in heated turpentine to which methylated spirits is added, the resultant varnish being of approximately 1.240 specific gravity. Other gums may be added to the varnish such as copal, mastic, gamboge, sandarach, or shellac; or the varnished paper may be given a thin coating of gelatine and then calendered. The varnished paper is next written on with an ink consisting of a solution of hydrate of potassium or hydrate ot sodium coloured by some of the soda aniline colours, Chinese blue, or indigo. It is then floated in water written side up, the inked parts turning into a soapy solution which is washed or brushed off under water. Alternatively, if a water ink is used on a duplicator, the inked sheet when dry may be placed directly on the duplicator and a sheet of wet blotting-paper pressed through before feeding the sheets. In attaching the stencil to a duplicator the head paper pieces may be varnished to the sheet and a piece may be attached to the other end to facilitate handling.
Patent GB-1135286-A (GB)
Title: Method and apparatus for manufacturing hollow plastic articles
Inventor: FOGELBERG CLEMENT VANUS
IPC: B29C49/04
Filed: 1966-02-22
Abstract: 1,135,286. Blow-moulding; transfer mechanism. BALL BROS. RESEARCH CORP. 22 Feb., 1966, No. 7659/66. Heading B5A. Plastics articles are blow-moulded by continuously extruding tubing, severing parisons therefrom, and transferring them simultaneously downwardly and outwardly to at least one blow-moulding station, preferably sequentially to each of a plurality of blow-moulding stations. The parisons may be of non-circular crosssection and may be rotated to the desired orientation during transfer to the blow-moulds. The lower end of each parison may be located in the moulds by a member of the blow-moulding station (Figs. 10-11, not shown). The apparatus comprises a stationary extruder 10 having a nozzle 11, a plurality of blow-moulding stations (12, Fig. 1, not shown), spaced therearound, transfer means to convey parisons automatically and sequentially downwardly and radially to each station (12). In one embodiment, the transfer means comprises a support 40, 41 a movable arm portion e.g. arms 45, 46 pivoted to the support, at 42, 43, and a parison gripper 51, 52, Fig. 3 carried by the arms and a member 47, and member 96 pivoted thereto. Means to rotate the parison comprises semicircular members 87, 88 carried by gripper arms 51, 52 and which grip the parisons and are rotatable by movement of rods 93 against a spring (97, Fig. 7, not shown). A longer rod (99) abuts stop 102 near the end of transfermovement to activate such rotation. The lower end of the parison may be located between the mould halves by member (82, Fig. 11, not shown), having a bifurcated end (83) operated by link (109) which fits into notch (111) and is operated by hydraulic cylinder (106) to push on member (110) and raise end (83) and which also activates mould closure (Fig. 9, not shown). Severing means comprises a horizontal pivoted knife 30. There may be withdrawal control means to remove a moulding station outwardly without interfering with the continuous operaton of the other stations. There may also be control means to vary the moulding cycle of the stations (Fig. 12, not shown).
Patent GB-1463806-A (GB)
Title: Radar systems including digital processing arrangements
IPC: G01S7/292
Filed: 1974-02-04
Abstract: 1463806 Analogue to digital conversion EMI Ltd 4 Feb 1974 [16 Feb 1973] 7673/73 Headings H3H and H4D In a MT1 radar system, using range cells, an 8 bit digital approximation of a 100 MHz received echo pulse is obtained using an A to D converter 5 producing a sign bit and 3 value bits from a signal 4 formed by subtracting at 2 an analogue representation of the contents of an 8 bit digital store 6 from the input signal and updating the store with the sum of its present contents and the output of A to D converter 5. A second store 8 increases the response rate by providing a predictive element to summing circuit 7. The contents of store 8 may be converted to analogue form and added to signal 4 to provide a signal representing the quantizing error. Several such converters may be connected in cascade. Vector signals may be converted by operating separately on in-phase and quadrature components.
Patent GB-492280-A (GB)
Title: Improvements in or relating to a method of and apparatus for making expanded cement articles
IPC: B28B11/24
Filed: 1937-03-16
Abstract: 492,280. Moulding expanded cement. WITHEROW, W. P. March 16, 1937, No. 7690. Convention date, April 2, 1936. [Class 87 (ii)] Expanded cement bricks, slabs, &c. are formed by pouring a cement mix capable of expansion into a trough and subdividing the mix by inserting a bottomless gang mould before expansion of the mix is complete. The mix may comprise Portland or Lumnite cement and an expanding, agent such as aluminium powder. The trough 2 rests on a curing tank 3 filled with water heated by steam pipes 6. The whole is enclosed by a cover 5. The gang mould comprises side walls or partitions 7 which are separated by end spacers or walls 8 and clamped together by bolts 9 passing through inclined slots 11, Fig. 6. Springs 10, extending through holes in the walls 8, tend to separate the walls 7 when the bolts 9 are released. The mould is lifted from the trough by elevating means 14. A plate 15, Fig. 8, which covers most of the mould space, is placed on the mix to produce a substantially level surface and completely fill the mould. The excess material at the edges can be sawn off. The Specification as open to inspection under Sect. 91 comprises also a method of moulding expanded cement containing coarse aggregates in which a gauge box is filled with the mix which is then poured into gang moulds so that each mould receives the exact quantity necessary to expand and fill it. The moulds may also have slidable end spacers to vary the size of the moulds. This subject-matter does not appear in the Specification as accepted.
Patent GB-1177441-A (GB)
Title: Amalgam Mixing Device
Inventor: STEINDORF GERHARD
IPC: A61C5/68
Filed: 1968-02-16
Abstract: 1.177.441. Mixing apparatus. MEDIZINTECHNIK LEIPZIG VEB. 16 Feb., 1968, No. 7716/68. Heading B1C. Dental amalgam is filled into capsules 3 which are set in motion by a turbulent aircurrent 1 in an apparatus consisting of a hood 5 attached by a bayonet joint 8 to a base 7; the hood preferably consists, or has an insert, of sound-damping material. The capsules 3 are preferably cubical and have grooves (9, Fig. 2 not shown) for their reception in a filling apparatus.
Patent GB-109764-A (GB)
Title: Improvements in and relating to Pressure Regulators.
Inventor: GILL JAMES FRANCIS
IPC: G05D16/10
Filed: 1917-01-17
Abstract: 109,764. Gill, J. F., and Spencer, H. W. Jan. 17, 1917. Pressure regulating and reducing valves. - A valve device actuated by fluid pressure acting on a piston under the control of a diaphragm-actuated auxiliary valve, and particularly applicable for use as a reducing-valve, surplus and make-up valve, fan or pump regulator, has self-acting means whereby the operating fluid which normally exhausts to the outlet side of the main valve is discharged to atmosphere or to a region of low pressure when the difference between the inlet and outlet pressures is insufficient to operate the main valve. The Figure shows the invention applied to a reducing-valve in which a lift valve C loaded by a spring E is opened by admitting inlet pressure through a duct G to the underside of a piston F. The supply of pressure is controlled by an auxiliary valve arranged in a case H and actuated by a diaphragm J subject to outlet pressure. The upper side of the piston F is normally connected to the low pressure side of the main valve through a conduit Q and spring-loaded check valve R. The conduit Q is provided with a branch leading to atmosphere or a condenser and fitted with a spring-loaded valvo U actuated by a diaphragm subject to the inlet and outlet pressures. In the event of the difference between the inlet and outlet pressures becoming too small to actuate the main valve, the spring V opens the subsidiary valve U and so connects the upper side of the main piston to a region of low pressure.
Patent GB-683014-A (GB)
Title: Swinging refrigerator shelf
IPC: F25D25/02
Filed: 1951-04-04
Abstract: 683,014. Refrigerator shelves. MOTORS PRODUCTS CORPORATION. April 4, 1951 [Nov. 6, 1950], No. 7818/51. Class 52(i) [Also in Group XXV] A swinging refrigerator shelf 28 is supported by a pair of vertically spaced downwardly extending, aligned hinge pins 50, 52 taking into open-topped sockets 38, 39 and provided with collars 54, 56 engaging the tops of the sockets. The pins 50, 52 form the ends of a bent wire member 48 fixed to the shelf, and the sockets are provided on a member 46 fixed to the front of the storage space by screws 40. The shelf is of arcuate form at 34 to clear goods placed on the fixed refrigerator shelf below, and comprises top and bottom border wires 24, 22 joined by vertical wires 26, .27 the floor being formed by cross wires 28. To urge the shelf to the retracted position a torsion spring 74 arranged in the hinge socket 38 has its ends bent to engage a slot 72 in the end of the hinge pin 50 and a slot 68 in an adjusting screw 64 passing through a bushing 62 in the lower end of the socket. A lock nut 76 retains the screw 64 in adjusted position.
Patent GB-1294243-A (GB)
Title: Gas filter
IPC: B01D46/04
Filed: 1970-02-18
Abstract: 1294243 Gas filter STANDARD FILTERBAU GmbH 18 Feb 1970 [26 Feb 1969 6 June 1969] 7846/70 Heading BIT  Inward-flow gas filter bags 2 are successively cleaned by combined reverse flow and vibration, fan 7 drawing filtered gas from outlet duct 5 and delivering it to a pair of moving nozzles 8, reciprocating flap valve 9 directing the gas into nozzles 8 alternately to shake the aligned bags 2 in antiphase. As shown, nozzles 8 align with two adjacent bags at any one time, but they could alternatively align with respective bags located on opposite sides of duct 5 along which the nozzles move (Fig. 2, not shown). Valve 9 is operated by a crank and swings far enough to ensure an adequate 'dead time' during which gas is directed wholly into one bag or the other (Fig. 3, not shown).
Patent GB-1030418-A (GB)
Title: Improvements in or relating to the manufacture of bearing bodies or housings
IPC: C08L27/12
Filed: 1963-02-27
Abstract: Material suitable for bearing surfaces is prepared by sintering polytrifluorochloroethylene with simultaneous sintering of at least one water-soluble salt and the soluble salt is then washed out to give a porous aggregate capable of absorbing lubricant.
Patent GB-1307933-A (GB)
Title: Transistor amplifier unit
IPC: H03F3/18
Filed: 1970-02-18
Abstract: 1307933 Automatic current regulation LICENTIA PATENT - VERWALTUNGS GmbH 18 Feb 1970 [18 Feb 1969] 7870/70 Heading G3X [Also in Division H3] In an amplifier having two transistors 1, 2 of opposite conductivity types, the emitter of the input transistor 1 is connected directly with the base of the output transistor 2, the base and collection of the input transistor 1 form the signal input terminals and the collector-emitter of the output transistor 2 form the signal output terminals, the emitter of the input transistor 1 and the collector of the output transistor are each connected through respective ohmic resistances 3, 4 to the same potential, the ratio of the resistances 3, 4 is equal to the current amplification of the output transistor 2, and the collector of the input transistor 1 is connected directly to a potential. The opposed base-emitter circuits of the transistors act so that the respective threshold values and voltage drifts of each transistor tend to cancel and may be arranged to be zero. The output voltage of the amplifier is of opposite sign to its input so that negative feedback may be provided. Overmodulation with a negative sign causes the collector-base path of the transistor 1 to conduct and overmodulation by the input signal may be prevented by a diode 5. A further diode may be connected in anti-parallel with the diode 5 if the collector of transistor is connected to a negative voltage instead of zero. The transistors 1, 2 may be of the opposite type to those shown. The amplifier may be used as a current regulation.