baber/WOPTO huggingface dataset:
Patent GB-627399-A (GB)
Title: Feeding mechanism for sewing machines
IPC: D05B27/02
Filed: 1947-09-16
Abstract: 627,399. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Sept. 16, 1947, No. 25255. [Class 112] The link 15, 20 connecting the feed-lift crank 13 with the feed-bar 6 is arranged for running adjustment to bring the upper position of the feed-dog 5 below the work-plate 3. The link comprises a guide plate 20 having an elongated hole 37 which embraces the crank-pin 17 and a link 15 which has two operative surfaces b, c for alternative engagement with the crank-pin. The link 15 is turned about the pivot 16 and relative to the plate 20 by a hand-operated crank 27 and link 29. A spring 21 holds the link 15 down into operative engagement with the pin 17. The link 15 is yieldingly held in each of its two positions by a spring-pressed plunger 33, carried by the plate 20 which enters one of the recesses 36 in the link 15. When the surface c is bearing on the pin 17, the teeth of the feed-dog do not rise above the work-plate when the dog is lifted.
Patent GB-1535772-A (GB)
Title: Extruded plastic mash
IPC: B29C48/32
Filed: 1975-06-12
Abstract: 1535772 Stretched extruded nets NETLON Ltd 26 May 1976 [12 June 1975] 25267/75 Heading D1R A mesh, Fig. 5, having 6-sided openings is formed by stretching 4 sided plastics mesh, Fig. 2, to produce molecular orientation in strands 5a, 5b, 6a, 6b and deform the intersections 7 into strands 7a comprising confluent portions of pairs of the original strands, at least a portion of each strand 7a being molecularily orientated whilst portions 7b at each end of the strands 7a remain unorientated. The starting mesh may be formed by extrusion with the intersections formed before or as the strands are extruded, or by adhesive bonding of the strands where they cross. Preferably the mesh is tubular and formed from a counter-rotating concentric pair of circular dies 1, 2, Fig. 1, having spaced orifices 3, 4 of generally trapezoidal cross-section with relieved trailing edges 3a, 4a. This avoids a sharp cut-off of the extruded plastics material as the orifices separate and thereby facilitates necking of the intersections 7 when the mesh is subject to transverse drawing. The mesh angle α is 90-110. The mesh is given a first stretch in the transverse or preferably the machine direction to orientate strands 5, 6. It is then stretched in the machine or preferably the transverse direction, e.g. by passage over a flexible carrier sleeve embracing a diverging hollow internal mandrel, to deform the intersections into strands. The stretching yields a lighter net with a softer feel. Specification 39546/74 claims a similar net in which however the stretching has been sufficient to molecularly orientate all the material of strands 7.
Patent GB-832969-A (GB)
Title: Improvements in and relating to mounting arrangements for low-oil-content electric circuit interrupters
Inventor: HEWITT JOHN
IPC: H01H33/00
Filed: 1955-09-02
Abstract: 832,969. Oil break switches. ENGLISH ELECTRIC CO. Ltd. Aug. 31, 1956 [Sept. 2, 1955], No. 25274/55. Class 38 (5). Low-oil-content circuit-breakers 1, 2 are mounted on a support structure 3 by mounting means 13 including resilient elements arranged to allow limited downward movement of the breakers in response to shock loading due to oil displacement during switching. Each breaker 2 is of the multi-break type having a baffle chamber 9, vanes 10 and a shielded vent 12 communicating with the atmosphere. The foot of each breaker column is provided with an extension 15 having projections 16 biased upward by springs 19 against a support-ring 18 on the fixed structure 3. The springs surround rods 17 which pass through holes in the ring 18 and are fixed in the projections 16 and a mounting flange 14 on the breaker column.
Patent GB-737735-A (GB)
Title: Improvements in and relating to folding chairs
IPC: A47C4/50
Filed: 1951-10-30
Abstract: 737,735. Seats. LEWIS, A. June 13, 1952 [Oct. 30, 1951], No. 25331/51. Addition to 615,377. Class 52 (2). The arrangement described in the parent Specification is modified in that the slot 17 is, at each side, extended beyond the location of the pivot 3 connecting the folding frames 1, 2 and the forward end of the slot 17 is shaped by curving upwardly, as at 18, the lower member 14 of the slot 17. In addition, a hump or ramp-like surface 19 is provided, the parts 18, 19 serving as the chair frames 1, 2 are folded to cause the cross-rail 13 of the strut 11 to approach the upper member 2 of the slot. In a modification wherein the members bordering the slot 27 are made of wood, the upper member of the slot is also curved upwardly as at 31 at the front end, the hump 29 and curved pad 30 being also shown. Notches 15, 16 are provided for adjustment of the relative positions of the frames 1, 2.
Patent GB-628938-A (GB)
Title: Table-mounting peeling or scraping machine with electric drive, especially for the peeling or scraping of potatoes and the like
IPC: A47J17/18
Filed: 1947-09-17
Abstract: 628,938. Peeling &c. potatoes &c. DUDLI, A. Sept. 17, 1947, No. 25396. Convention date, July 19, 1946. [Class 28(ii)] [Also in Group XXXV] A potato, carrot, &c. peeler is designed with its electric motor 14 on a level with and parallel to the scraping barrel 1 so that through a coupling 22, and drive 28, 29, Fig. 4, the peeler parts can be replaced inside by a drive to drive other kitchen appliances such as a mincer 26, strainer 27 grater or coffee grinder. The peeling plate 2 with agitating ribs 5 is driven by belt 16 from the motor. In Fig. 4 the lid 24 is designed to contain the gearing and drives for the mincer 26, strainer 27, or other appliances. A sloping plate 6 deflects the washing water and peelings to a drain 7.
Patent GB-153454-A (GB)
Title: Improvements in and connected with stockings and socks
IPC: A41B11/00
Filed: 1919-10-17
Abstract: 153,454. Ford, E. Oct. 17, 1919. Stockings and socks. - A welt or flap A is made in one with the stocking or sock and is capable of being turned up as shown, or turned down over the boot top.
Patent GB-1022446-A (GB)
Title: Liquid supply system
Inventor: TYLER STANLEY RALPH
IPC: F23K5/04
Filed: 1961-07-13
Abstract: 1,022,446. Supplying liquid fuel to burners. DOWTY FUEL SYSTEMS Ltd. July 2, 1962 [July 13, 1961], No. 25480/61. Addition to 888,328. Heading F4T. [Also in Divisions F1 and G3] A liquid fuel supply system for the spill nozzle 16 of an engine comprises an enginedriven centrifugal main pump 1 connected to the spill connection 15 of the nozzle, an enginedriven circulating centrifugal pump 18 connected between the spill connection 15 and the supply connection 23 of the nozzle, an acceleration throttle 4, 8 regulating the flow of fuel from the main pump 1 and an adjustable throttle 21 located between the circulating pump 18 and the supply connection 23 and operatively connected with the acceleration throttle 4, 8, the arrangement being that increase in the flow rate through the acceleration throttle 4, 8 increases the throttling effect of the adjustable throttle 21 whereby at high flow rates fuel enters the nozzle through both the supply connection 23 and the spill connection 15. The acceleration throttle comprises a throttle valve 4 and a throttle valve 8. The former is adjusted by a bellows 5 sensitive to a function of the entry or exit pressures of the engine compressor. The throttle valve 8 comprises a piston 11 controlling the flow of fuel through a port 10 to the circulating pump, and moved by centrifugal flyweights 9 driven by the engine. Fuel pressure at the inlet to the other throttle valve 4 is conveyed by a pipe 13 to the left-hand side of the piston 11 and fuel pressure at the delivery side of the other throttle valve 4 acts on the righthand side of the piston 11. The adjustable throttle 21 is spring loaded to open position and is closed when the piston 11 of the throttle valve 8 opens an auxiliary port 27 to allow fuel to flow to the piston 24 of the adjustable throttle 21. In its closed position the throttle 21 does not entirely close the flow passage. A restrictor 28 bleeds fuel to allow the piston 24 to move slowly under spring action to the open position when the auxiliary port 27 is closed. An all-speed governor comprises engine-driven fly weights 29 and an adjustably loaded compression spring 31 together controlling a by-pass valve 32 controlling the flow of fuel through a pipe 33 to a low pressure zone. In a modified system, Fig. 2 (not shown), the adjustable throttle 21 is replaced by a port 32 disposed in the throttle valve 8 and opened and closed by the piston 11. The piston 11 does not control a port 10 as in Fig. 1.
Patent GB-1272207-A (GB)
Title: Overhead projector
Inventor: RITZERFELD GERHARD
IPC: G03B21/132
Filed: 1970-05-27
Abstract: 1,272,207. Overhead projectors. G. RITZERFELD. May 27, 1970 [March 2, 1970], No.25536/70. Heading G2A. A writing projector comprises a light source 11 within a housing 1 upon which are mounted a detachable transparent writing plate over a Fresnel lens 4 carried in a stirrup 5 pivoted to housing 1 by pins 7 whereby the lens 4 may be raised for cleaning.
Patent GB-1037699-A (GB)
Title: Semiconductor devices
IPC: H01L21/18
Filed: 1963-06-27
Abstract: 1,037,699. Semi-conductor devices. CLEVITE CORPORATION. June 27, 1963 [Aug. 24, 1962], No. 25591/63. Heading H1K. In semi-conductor devices, a substrate of one conductivity type is provided on one of its major faces with a relatively low resistivity epitaxially grown layer of the same conductivity type, and is provided on its other major face with an indiffused region of the opposite conductivity type in which a further diffused region of the first conductivity type is formed. To make a planar transistor an N- substrate is lapped and polished to show two parallel major faces on to one of which a relatively thick N+ layer is grown. The other face is now oxide masked and provided with an indiffused P-type base region. The substrate may be mechanically reduced in thickness before masking. After reoxidation an emitter mask is formed and an N-type emitter region produced. Ohmic contacts are made to the two diffused regions and to the epitaxially grown region to complete the device. To make a mesa transistor an N+ region is grown on one face of an N- substrate and a P-type layer is formed by diffusion over the entire opposite surface of the substrate. This layer is oxide masked and an N-type emitter region formed. This region and part of the P-type base layer are masked and the remainder of the P-type layer removed to leave the mesa. Ohmic contacts are provided to the diffused regions and to the epitaxially grown layer. The Specification states that PNP devices may also be made.
Patent GB-452615-A (GB)
Title: Improvements in and relating to cigarette collecting mechanism for cigarette making machines
IPC: A24C5/32
Filed: 1935-09-16
Abstract: 452,615. Cigarette-making machines. AMERICAN MACHINE & FOUNDRY CO., 511, 5th Avenue, New York, U.S.A. Sept. 16, 1935, No. 25631. Convention date, June 22. [Class 130] Cigarettes C travelling lengthwise in a single line from a cigarette - making machine are displaced sideways by a member 12 rotatable about an axis above and transverse to the path of the cigarettes and having a surface adapted to effect a sustained displacement of the cigarettes on to a transverse delivery belt 7 in the plane of the surface 5 on which the cigarettes initially travel. As shown, the member 12 is a worm mounted on shaft 13 inclined so that the bottom portion of the helical groove of the worm is aligned with a cigarette, which enters the groove and is given a sustained displacement sideways on to the belt 7. The pitch of the helical groove is greatest at the receiving end of the worm in order to displace the cigarettes quickly sideways, and the worm may be single or double threaded. To separate the cigarettes axially before reaching the worm, they are accelerated by a rotating wheel 15, Fig. 3, having a raised segment the surface speed of which is greater than the speed at which the cigarettes travel along the surface 5. The wheel 15 delivers the cigarettes to a narrow endless belt 16 beneath the worm 12. When the cigarettes are displaced sideways by the worm, their forward movement is retarded and arrested by an endless belt 21 alongside the belt 16 and moving in the opposite direction, so that the cigarettes come to rest against a stop 26 forming an extension of the rear guide 11 of the belt 7.
Patent GB-590703-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: H01J61/32
Filed: 1944-12-21
Abstract: 590,703. Discharge lamps. GENERAL ELECTRIC CO., Ltd., BREADNER, R. L., JENKINS, H. G., and SIMMS, C. H. Dec. 21, 1944, No. 25632. [Claas 39 (i)] An electric discharge lamp having the dis-' charge passage of spiral shape comprises an inner blown glass member 10 shown in Fig. 1 moulded to form a helical groove 12 with ridges 11, placed inside a second blown glass member which is sealed to the first along the ridges 11, as shown in Fig. 3, forming a helical discharge path of approximately semicircular cross-section. Tubulations 13 and 14 are sealed to the inner member at the ends of the groove, for example by the method according to Specification 534,952, [Group XXXVI], and electrodes 16 and 17 are sealed through pinches formed in their lower ends. The envelope is coated internally with luminescent powder, e.g. as described in Specifications 421,932 and 460,756 and may have gas or vapour filling. Materials mentioned are zinc beryllium silicate, magnesium tungsten, zinc silicate, calcium tungstate, or fillings, argon, neon or mercury vapour. In an alternative construction, the outer member is provided with a spiral groove, whereas the inner is plain as in Fig. 4 (not shown). Sealing may be effected by collapsing the outer component on to the ridge 11 or by local progressive melting with a small flame. The inner surface of the inner tube may be metallized with a film of high reflectivity, e.g. by chemical deposition of silver or a highly reflecting surface may be arranged in the space within the inner component. This space may be used to accommodate starting switches, radio interference suppressors &c. or an additional light source to modify the colour of the light. The lamp may have a plurality of separate helical discharge paths or the paths may be in the form of two-start spirals each being given a different filling. The minimum radius of curvature at the troughs of the grooves is given as 5 times the maximum thickness of the glass and the minimum at any point is equal to the maximum thickness of the glass. The glass members may be in the form of openended cylinders to allow cooling by convection currents.
Patent GB-1209705-A (GB)
Title: Apparatus for the pressure treatment of a continuous strip of material
Inventor: KUNZE FRIEDRICH
IPC: D06C15/02
Filed: 1968-05-29
Abstract: 1,209,705. Mangling apparatus. TEXTILMASCHINENBAU ZITTAU VEB. 29 May, 1968, No. 25725/68. Heading D1L. Strip material 4 is squeezed between two external rollers 1, 2 and in a work gap formed between roller 1 and third roller 3. Both the external rollers are driven in the same direction through an epicyclic or differential gear and the third roller is larger in diameter than the gap between the external rollers.
Patent GB-1035578-A (GB)
Title: A process for the polymerization of 2-vinyl pyridine
Inventor: PIPER GUSTAV
IPC: C08F20/08
Filed: 1965-06-18
Abstract: 2-Vinyl pyridine is polymerized in aqueous suspension in the presence of surface-active substances, at a temperature of from -5 DEG  to +40 DEG  C., and at a pH above 8 in effective contact with a water soluble radical-forming polymerization catalyst and in the presence of 0-10% by weight based on the entire polymerization system of an inorganic water soluble salt in which all the unusable hydrogen atoms have been replaced by metal or ammonium ions. Conventional surface-active agents and catalysts are used. The water-soluble inorganic salt is preferably sodium chloride or ammonium sulphate.
Patent GB-726160-A (GB)
Title: Improvements in or relating to typographical composing machines
IPC: B41B27/10
Filed: 1953-09-21
Abstract: 726,160. Type - bar - making machines. MERGENTHALER LINOTYPE CO. Sept. 21, 1953 [Sept. 24, 1952], No. 25989/53. Class 100 (3). Assembling matrices; driving-mechanism.- A typographical line-casting machine operated by an automatic tape control unit includes means for rendering the keyboard operating mechanism inoperative and the assembler elevator raising mechanism operative at the end of a line, means for normally restarting the keyboard operating mechanism on the return of the elevator to casting position, and delay means, operated by the delivery mechanism which transfers the composed line from the elevator to the casting position, to independently maintain the tape arrested on line transfer movement of the delivery mechanism until the return movement of the delivery mechanism, after which the tape is allowed to advance. When the delivery carriage 7 moves to the left, a switch 31 is closed by means of a cam 25 and bar 28, so as to energize a solenoid 34 and cause a lever 18 to swing against the tape-advancing shaft 12. A projection 19 on the shaft enters a hole in the lever so shaped that the shaft is moved axially to disengage its driving clutch. When the carriage 7 returns to the right, the clutch is reengaged. In this way, when double-column lines are being cast, sufficient delay is caused to prevent a further line being composed until sufficient matrices have been returned to the magazine. For casting normal lines, delay is unnecessary, and a switch 36 is opened to disable the delay means.
Patent GB-1315382-A (GB)
Title: Non-woven fabrics as electrical insulators
IPC: H01B9/06
Filed: 1970-05-29
Abstract: 1315382 Non-woven fabrics ESSO RESEARCH & ENG CO 29 May 1970 [23 June 1969] 25989/70 Heading DIR A spun-bonded compacted non-woven web of continuous polypropylene filaments of diameter 0.5 to 15 microns has a porosity (i.e. void space) of 15 to 25% and a thickness of 0.4 to 30 mil. Polypropylene is melt-blown by extrusion from die-head 3, the emerging filaments being stretched by jets of hot air and deposited on rotating drum 9, the hot fibres bonding at cross-over points. The mat 10 is calendered, rolls 30, 31 preferably being heated to increase the fusion bonding. The rolls may be at 230‹F and 250‹F respectively so that one mat surface is film-like and less permeable than the other.
Patent GB-350827-A (GB)
Title: An improved process for "pushing" glass bottles
IPC: C03B9/335
Filed: 1930-09-01
Abstract: 350,827. Making glass bottles. SOC. ANON. D'ETUDES ET DE CONSTRUCTIONS D'APPAREILS MECANIQUES POUR LA VERRERIE, 3, Rue de Castellane, Paris. Sept. 1, 1930, No. 26072. Convention date, April 17. [Class 56.] Relates to a method of forming a "pushed" bottle while it is still in the finishing mould. According to the invention, as soon as blowing is completed, the mould bottom 3, Fig. 4, either is removed or is lowered through a short distance so that the bottom of the bottle sags downwards, as shown in Fig. 5, a puff of air being used if necessary. The central part O<1> of the glass now becomes chilled by contact with the mould bottom while the remainder reheats. The mould bottom is then replaced by a pusher 2, Fig. 6, which is moved upwards in the mould and forms the required cavity in the bottom of the bottle. When the mould bottom is removed immediately after blowing, the pusher is brought beneath the mould to support the sagging glass while it reheats.
Patent GB-970753-A (GB)
Title: Method and device for producing transverse weld seams on thermoplastic tubes
IPC: B29C65/74
Filed: 1962-07-09
Abstract: 970,753. Seaming non-metallic sheet material. HAMAC-HANSELLA A.G. July 9, 1962 [Oct. 11, 1961 (2)], No. 26235/62. Heading B5K. [Also in Division B8] Transverse weld seams are produced on a tube 11 of thermoplastic film by first pressing the tube flat at two positions spaced on opposite sides of the desired position of the seam; freeing the tube 11 in this region from any external tensile stress in the longitudinal direction thereof so that it is free to shrink in that direction when softened by heat; and welding the seam in such a manner that the welding tools, after the fusion of the material of the tube in the region of the seam, are moved away from the seam before the seam has cooled down and solidified. In one embodiment, Figs. 1 and 2, a thermoplastic tube 11 in a packaging machine passes between channel section clamping bars 1, 2 which close so that resilient strips 5 thereon flatten and clamp the tube 11 therebetween. Welding bars 6, 7 are moved towards each other by rods 13 and a knife 12 secured to the bar 7 reaches the tube 11 first to sever it to relieve longitudinal stresses therein generated by downward movement thereof and the weight of a filled bag at the lower end thereof. The bars 6, 7 then close and transversely seal the tube 11, the bar 6 carrying an electrically heated element 10 and the bar 7 a counter element 10 which may also be heated. The bars 1, 2 remain closed for a short time after the bars 6, 7 have opened, the fused region of the unstressed thermoplastic film shrinking during cooling. In a modification in which the bags are not severed the external longitudinal stresses in the film are relieved by moving flanges 3 of each of the bars 1, 2 towards one another after the closing of these bars. In an alternative embodiment, Fig. 8, bars 26, 27 cut and weld. The bar 26 carries an intermittently or continuously heated electrical resistance element 28 preferably thermostatically controlled and having a triangular cross-section and the bar 27 carries a counter-bar 29 which may also be heated. Heat of radiation from the two adjacent faces of the element 28 assists in forming the seals 32. Alternatively, the element 28 may have a rectangular profile with a cutting-sealing rib thereon.
Patent GB-1392346-A (GB)
Title: Fixture for positioning memory cores
IPC: G11C5/05
Filed: 1972-06-06
Abstract: 1392346 Laminates RCA CORPORATION 6 June 1972 [10 June 1971] 26278/72 Heading B5N [Also in Division H3] A reversible jig plate 10 for locating a matrix of annular ferrite cores 25 on edge in readiness for conductor threading comprises a three-layer laminated plate the outer layers 21, 23 of which are identically perforated with a matrix of rectangular apertures 14, 24 for receiving cores, corresponding apertures in the outer layers being coupled by holes 28 through the intermediate layer 22 to enable the cores to be located by suction from beneath the plate. Each layer is formed of a plurality of thin flexible sheets and the outer layers are dimensioned so as to have a thickness dimension of approximately half that of a core diameter. The holes 28 in the intermediate layer may be of square section with a side dimension slightly in excess of an aperture width. The jig plate is loaded in the usual manner by depositing cores on the plate while applying vibration and suction simultaneously.
Patent GB-1381293-A (GB)
Title: Tunelling
IPC: E21D11/38
Filed: 1971-01-11
Abstract: 1381293 Wells &c arcuate blocks E F COOPER 10 Jan 1972 [11 Jan 1971] 26389/74 Divided out of 1381292 Headings E1B and E1F A shell 12 for a tunnel segment comprises a base 13, and end and side walls 3, 4, the end and, side walls having grooves 5. and recesses 9 respectively. The shell is moulded from a waterproof chemically inert material such as plastics, and is filled with a structural material 15 such as concrete or synthetic resin. Sealing rods are received in the recesses 9 and a resilient bridging member is bolted in a groove 5 in adjacent segments to connect adjacent segments.