baber/WOPTO huggingface dataset:
Patent GB-1348586-A (GB)
Title: Electroconductive materials
IPC: H01B1/18
Filed: 1972-02-09
Abstract: 1348586 Electroconductive coated materials FUJI PHOTO FILM CO Ltd 9 Feb 1972 [9 Feb 1971] 6150/72 Heading B2E An electroconductive material for use in discharge recording comprising a support and an electroconductive layer of a mixture of graphite and clay, which has been sintered in a reducing atmosphere, formed on the surface of the support. The support is, in Fig. 3, for example, a paper sheet 30, driven by a roller 31, onto which is pressed by a spring 34 a block 32 of sintered graphite and clay. The block may alternatively be formed as a roller driven in the same direction as the roller 31 and pressing on the paper, Fig. 4 (not shown). The support may also be a sheet of cloth, woven plastics fibres, resin coated paper, or synthetic paper such as plastics film having a matted or porous surface. The plastics film may be a diacetyl cellulose film and the surface resistance of the film may lie between 10<SP>4</SP> and 10<SP>5</SP> #cm<SP>2</SP>. Three examples are given.
Patent GB-744486-A (GB)
Title: Improvements in rotary electrical switches
IPC: H01H19/56
Filed: 1953-03-06
Abstract: 744,486. Mechanical switches, without quick-action; switch contacts. WIPAC DEVELOPMENT, Ltd., and GAYLER, G. A. Feb. 22. 1954 [March 6, 1953], No. 6339/53. Class 38(5) A switch has two arcuate or circular arrays of fixed contacts, each array having a co - operating movable contact arranged to bridge different adjacent pairs of pairs of fixed contacts in different angular positions of the movable contacts, each of which has its own individual operating member. As shown, the fixed contacts 1, 12 are carried by insulating rings 2, 31 and are separated by a further insulating ring 34. The movable contacts 9. 9<SP>1</SP> are rollers carried by spring plungers 7 radially movable in recesses 6 in insulating members 3, 32. Member 3 is keyed to a shaft 13 at 14, the shaft having an enlarged end 33<SP>1</SP> rotatable within a sleeve 28 which is threaded into a bush 24, the sleeve 28 having a hexagonal portion 29 engaging a similar recess in a plate 21, so that bush 24 and sleeve 28 cannot rotate. A knob 16 is rotatable on the outside of bush 24 and has three pins 17 passing through angular slots 20 in plate 21 into holes 33 in member 32 which can thus be rotated by the knob. Rotation of member 32 is limited to three steps by the pins 17. and slots 20, and rotation of member 3 is limited by projections 4 on. ring 2 working in recesses 5 in member 3. The latter is rotated by a key (not shown) which can only be inserted in and removed from slots 25 in part 33<SP>1</SP> when they are in line with slots formed in the end of sleeve 28. Contacts 9<SP>1</SP>, 12 may control vehicle lights and contacts 1, 9, the ignition circuit. Rollers 9, 9<SP>1</SP> may be replaced by hexagonal members and dissimilar metals, e.g. brass and " Monel" (R.T.M.), may be used for the contacts.
Patent GB-667994-A (GB)
Title: Improvements in and relating to paring or stripping machines for coal and other minerals
IPC: E21C35/10
Filed: 1950-03-14
Abstract: 667,994. Mineral planers. FLOTTMANN, F. H. March 14, 1950. [April 14, 1949] No. 6423/50. Class 68 (i). In the use of a planer for mining mineral in which the planer has a wedge or trapezium shaped cutter body and an upwardly inclined loader ramp 4 to which is secured a bar 7 carrying a pulley 8 over which the haulage means passes, the depth of cut is regulated by a guide frame 1 detachably secured by bolts band r to the bar 7. The guide frame may be adjustable in width or interchangeable with other frames of varying widths in order to vary the depth of the strip. One form of the frame is a U-shaped strip to which reinforcements 1a may be secured. The planer may be double-ended by articulating together two such planes.
Patent GB-540303-A (GB)
Title: Improvements in or relating to autographic registers and like manual recording machines
IPC: B41L5/00
Filed: 1940-04-10
Abstract: 540,303. Autographic registers. SMITH & SON, Ltd., W. H., and EVANS, A. April 10 1940, No. 6507. [Class 106 (i)] An autographic register or like manual recording machine of the kind in which a continuous strip is fed over a writing tablet and thence to a storage compartment is provided with a sliding or hinged cover plate, grid, or equivalent which may be locked in position over the part of the record strip overlying the writing tablet in order to prevent false entries being made when the apparatus is unattended. The register shown, which is of the kind described in Specification 521,463, employs a zig-zag pack of record strips 14 which are drawn over a guide bar 17 and a writing tablet by means of pin-wheels 19 operated by a handle 20 and engaging perforations in the edges of the strips. The upper strip passes over a stripper plate 23 to the outside of the apparatus, and the lower passes beneath the plate to a storage compartment 25. The entries are made through an aperture 21 in the hinged lid 11 of the apparatus, which aperture may be closed by a hinged plate 28 the forward edge of which, when the lid 11 is closed, lies under the edge of the presser bar 22 overlying the pin wheels. When the register is to be used, the lid 11 is unlocked and the plate 28 turned back beneath the plate 26 to which it is hinged, the lid being then closed and locked. In alternative forms, the plate 28 is hinged to part of the machine, or is in the form of a slide or a roller blind shutter.
Patent GB-158467-A (GB)
Title: Improvements in coin freed apparatus
IPC: G07F5/02
Filed: 1920-03-03
Abstract: 158,467. Jofeh, J. March 3, 1920. Tivoli billiards and the like; coin action, weight and mechanical-connection; fraud, preventing.-A coin shoot is provided with three interconnected obstructions, the removal of two of which is dependent upon the size and weight of the coin respectively. The coin is inserted in the open end 11 of the shoot and is depressed by a hook 13 on a pivoted arm 12 operated from outside the apparatus, As the arm is depressed, it forces the coin past the first obstruction 27 carried by a lever 28, the lower end of which is fitted with a ,projection 32 engaging serrations on a link 33, which prevent the lever from springing back after the coin has passed. At the same time, the movement of the links 16, 19 and bellcrank lever 18 forces the third obstruction 22 into the lower end of the shoot, where it is retained by a catch 25 engaging with a notch 24. The link 19 is slidable in a downward direction through the eye-bolt 20 on the bell-crank 18, and the arm 12 springs back into the position shown in Fig. 1 under the action of a spring 15 as soon as the external operating-means are released. The coin then meets the second obstruction 38 which is removed by independent operation from outside the apparatus through a bell-crank lever 3G, which simultaneously lifts the link 33 by the rod 37 and sets free the lever 28 carrying the first obstruction. The coin now falls on the end of the arm 22 and depresses it from engagement with the catch 25, whereupon the arm 22 springs back under the action of a spring 23. Coin-discharging mechanism.-The coin finally passes to the bottom of the shoot, where it either rests upon an obstruction 40, to be discharged into the till, or passes to the extreme end of the shoot to be returned to the operator, the position of the obstruction 40 being determined by mechanism of known type not shown. In th.e case where the coin rests on the obstruction 40, it is discharged by a projection 35 on the lower end of the lever 28 at the moment when the next coin is forced past the obstruction 27.
Patent GB-556494-A (GB)
Title: Improvements in and in the manufacture of airscrew and like blades
IPC: B21D53/78
Filed: 1942-05-15
Abstract: 556,494. Screw propellers. CONSTANT SPEED AIRSCREWS, Ltd., and MARSHALL, F. G. May 15, 1942, Nos. 6603/42 and 3218/43. [Class 114] [Also in Group XXII] Air-screw blades are made by applying metal sheets e, e.g. of stainless steel, to a skeleton former comprising a longitudinal member b extending through slots c in a number of elements a of aerofoil shape the pitch of the blade being determined by the angle of the slots or by shaping or twisting of the longitudinal member. The metal sheets may be secured to the elements a by welding or by countersunk screws arranged to stretch the sheets. Alternatively the sheets while held in position against .the former may be welded together along their edges in which case the former may subsequently be removed and the interior of the blade filled with a plastic composition.
Patent GB-567714-A (GB)
Title: Improvements in or relating to automatic or semi-automatic firearms
IPC: F41A5/02
Filed: 1943-04-27
Abstract: 567,714. Automatic firearms. SANDERS PRECISION ENGINEERING CO., Ltd., and SANDERS, T. F. April 27, 1943, No. 6645. [Class 119] An automatic or semiautomatic firearm of the recoiling-barrel type has the locking and unlocking actions carried out by three members, namely (a) a rocker on the breech-block engageable with an extension of the barrel to initiate barrel recoil (b) a pivoted catch in the barrel extension, engageable with a stationary part of the firearm to retain the barrel in its recoiled position while the block completes its rearward movement and (c) a pivoted catch, also on the barrel extension to hold the breechblock in its forward position in the barrel extension and displaceable on the first part of the recoil, to release the breechblock. The barrel 2, Fig. 2, is screwed at 4 into a barrel extension 3 working within the fixed shoe 1 of the firearm, the barrel having a lug 5 guided by a tubular magazine 6 and urged forward by a spring 7. The breech-block 8 has a semi-cylindrical top, with parallel sides and slide lugs 9 whereby the breech-block is guided in groove 10 in the fixed shoe 1. The barrel extension has an arcuate notch 14 engaging a rocker 12 pivoted on the breech-block at 13, and two pivoted catches 24, 17 under the influence of a single leaf spring 19. In the firing position, Fig. 1, the forward end of the catch 24 abuts against the forward end of a groove 23 in the top of the breech-block, thereby locking the barrel extension and breech-block together. In this position, the rear end of the catch 24 is located in a cam recess in the fixed shoe 1, and the rocker 12 is seated in the notch 14 on the barrel extension. The centre of curvature of the part of the rocker engaging the notch 14 is slightly below and rearward of the rocker pivot 13 to permit a slight movement of the breechblock, on firing, to facilitate extraction. The rocker has a pair of trunnions 15, one on each side, engaging cam grooves 16 in the shoe 1. When the weapon is fired, barrel and breechblock recoil together until the cam face 28 trips the pawl 24 to release the breech-block from the barrel extension 3, and the cam grooves 16 act on the trunnions 15 to withdraw the rocker 12 from the notch 14. The breech-block then retires faster than the barrel, which is restrained by the spring 7, and the pawl 17 on the barrel extension engages with a notch 20 in the shoe 1, thereby preventing return movement of the barrel until the pawl 17 is tripped by the camend 22 of the groove 23 on the breech-block, when the latter returns under the action of its recuperator spring (not shown) after pushing a fresh cartridge into positiop. Barrel and breech-block then move forward, aided by the spring 7, until the rocker 12 couples with the barrel extension, and the pawl 24 swings into the notch in the shoe 1, the block and barrel thus being positively coupled ready for the next discharge.
Patent GB-1418311-A (GB)
Title: Emulsions of fats and fatty oils
IPC: C11B5/00
Filed: 1972-02-14
Abstract: 1418311 Preserving fatty compositions UNILEVER Ltd 12 Feb 1973 [14 Feb 1972] 6685/72 Heading A2D [Also in Divisions C5 and G1] An aqueous emulsion (oil-in-water or waterin-oil) of 3 to 85% by weight of a fatty phase comprising triglycerides containing radicals of polyunsaturated acids has its keeping qualities improved by an enzyme system comprising alcohol dehydrogenase and a proton-donating coenzyme. The amount of enzyme system is enough to reduce the content of nonanal added to the emulsion to not more than 75% of its initial value, when tested by a procedure described in the specification. The emulsion may be a margarine or a low-fat spread. The co-enzyme may be a reduced form of nicotinamide-adenine-dinucleotide or nicotinamide-adenine-dinucleotide phosphate. The aqueous phase has a pH of 4-7 and may be milk. The emulsion may be made by mixing the enzymes with the aqueous phase or part of it before emulsification. Oils used in the Examples are (I) a blend of autoxidized sunflower oil with an interesterified blend of hydrogenated palmkerneloil and hydrogenated palm oil; (III) similar to Example I but with the autoxidized sunflower oil replaced by a blend of refined sunflower oil and refined soyabean oil; (IV) similar to Example III but with the soyabean oil replaced by refined safflower oil; (VIII) autoxidized maize oil. Emulsifying agents that may be used are partial fatty-acid glycerides, phosphatides and egg yolk. The aqueous phase may also contain salt, acid, proteins or flavours.
Patent GB-821215-A (GB)
Title: Improvements in or relating to anti-skid treads for automobile tyres
IPC: B60C11/04
Filed: 1958-03-03
Abstract: 821,215. Tyre treads. OLSEN, S. I. March 3, 1958 [Feb. 12, 1958], No. 6761/58. Class 144(2). A tyre tread comprises two circumferential groups 1, 2 of rubber studs arranged as shown in a braid pattern in each group with each stud having a non-rectangular parallelogram-shaped tread surface and being spaced from the adjacent studs in the group by a narrow slot 3, each group 1, 2 being flanked on each side by at least one continuous circumferential rib 4, 5, 9, 10 which is spaced from the group by narrow slots 6, 7, 11, 12, respectively, of the same axial width as the slots 3, and each tread shoulder being formed by a further continuous circumferential rib 13, 14 which is spaced from the adjacent rib 9, 10 by a groove 15, 16, of substantially greater axial width than the aforesaid slots. As shown, the central ribs 4, 5 are spaced by a zig-zag groove 8 of the same axial width as the zig-zag grooves 15, 16. Each rib 4, 5, 9, 10 is of the same axial width as the rubber studs which is preferably 8 to 10 mms., the studs having a long diagonal of about 25 mms., and the slots 3, 6, 7, 11, 12 being 1 ¢ to 2 mms. wide. The braid patterns of the two stud groups 1, 2 may have an oppositely-directed oblique formation, respectively, as shown, or they may extend in the same direction.
Patent GB-116518-A (GB)
Title: Improvements in and connected with Signalling Apparatus for use in Mines.
Inventor: BOYD DONALD
IPC: B66B19/06
Filed: 1917-05-12
Abstract: 116,518. Boyd, D. May 12, 1917. Mine and colliery signals.-In mine signalling apparatus, the number of signalling impulses is indicated by a pointer moving over a dial; any number greater than five is additionally indicated by a disk showing through an aperture, and a cautionary signal is indicated by a plate showing through another aperture, as shown in Fig. 1. Signal impulses by the usual wire reciprocate a sliding rod 32 carrying a fork 34 engaging under, and raising during the upward movement, a head or enlargement on the pistonrod 35 of a time-lag device 36. A pawl 33 on the rod 32 engages a ratchet wheel 7 during each downward movement, moving step by step a pointer 31 secured to the shaft 6. The pointer is retained by a. detent F normally held in engagement with a ratchet wheel 8 by a weight G. The detent is disengaged to cancel a signal by the first impulse of a subsequent signal, the head nf the piston-rod 35 during its upward movement engaging the outer end of the detent. The detent is also disengaged by a cord K and levers J, L, operated in any suitable way when the engine brake is applied. The detent is held out of engagement by the lower end of a pivoted depending member 12 engaging a pin 14 on the detent until freed by a pin 11 on the ratchet wheel knocking the member 12 aside when the ratchet returns to the zero position. When more than five signal impulses are given, a projection, (not shown), on the shaft 6 engages a projection on a disk M loosely mounted on the shaft, so that the disk is carried round with the shaft and exhibits the corresponding signal indication through an aperture in the upper part of the dial. The cautionary signal " men " is on a plate D carried by a pivoted arm 24 depending from a pivoted arm 25 supported by a hook catch 27. The catch 27 is released through a lever 28<1>, connected to a pivoted member E, by the head of the piston-rod on its descent after completion of a signal. Descent of members 24, 25 and plate D is prevented by a projection 23 on the arm 24 resting on the flanged periphery of a disk keyed to the shaft 6, except when the signal " 3 " is given, in which case a cut-away part of the flange registers with the projection 23, allowing descent of the plate D to exhibit the word " men " through a suitably placed aperture. The plate is returned by a cord 30 operated by suitable means as the cage reaches its destination.
Patent GB-166622-A (GB)
Title: Improvements in machines for cutting paper, cardboard and the like
IPC: B26D1/09
Filed: 1920-03-05
Abstract: 166,622. Poole, H. J., and Beddington, C. March 5, 1920. Cutting-out apparatus.-Relates to machines for cutting-out the four corners of rectangular blanks in the manufacture of cardboard boxes or lids, the blanks being cut at two corners by two sets of reciprocating cutters co-operating with two sets of fixed blades and then reversed, and consists in providing for relative adjustability between (1) the individual blades of the fixed and moving cutters, (2 )a set of moving blades with regard to its co-operating fixed set, and (3) the sets of blades as a whole, one or both sets being movable. The moving cutters comprise two blades b, c arranged at right-angles and secured in guideways on plungers a by keep-plates d and screws d<1> so as to be capable of lateral adjustment. The plungers move in guideways e secured to vertical frames e<1> by screws e<2> passing through horizontal slots in the frames. To the bases of the frames e<1> are secured guides k. k<1>, Fig. 4, in which are adjustably mounted the lower knives j, the edges of the knives and guides being undercut to allow movement. Operation of the knives is effected by cams h engaging rollers g on the spring-supported plungers a, one cam being wider than the other to allow for movement of the corresponding frame e<1>, or one continuous cam may be employed. Positioning of the work is effected by means of adjustable stops l, m adjustably secured to the framing f, a finger-guard n being provided. For punching square notches in the edge of the material, an intermediate cutter o. Fig. 5, is provided, the corresponding fixed die p being mounted in undercut guides p‹ between screws, p<1> which allow adjustment in both directions.
Patent GB-453135-A (GB)
Title: Improvements in or relating to television and like receivers
IPC: H03D11/02
Filed: 1935-03-04
Abstract: 453,135. Wireless receiving-apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and LINSELL, A. A., 80, Crystal Palace Park Road, Sydenham, both in London. March 4, 1935, No. 6808. [Class 40 (v)] In a receiver for television and sound the sound energy is received on a super-regenerative receiver and the quenching frequency is obtained from the television scanning frequency. The line frequency or a harmonic thereof may be used or a frequency multiplier may be employed to raise the scanning frequency. When a cathode ray type of television receiver is used the sound receiver is preferably in the quenched condition during the fly-back period. The super-regenerative receiver is preferably of the type described in Specification 341,786. The receiver valve grids may be connected by a resistance 3 to the ends of which may be connected directly a pair of deflecting plates or coils or alternatively a transformer may be used and tuned to a harmonic of the deflecting potential. Adjustment of the tapping to the cathodes allows the relative periods of regeneration and quenching to be adjusted while an adjustable condenser 28 or choke 27 permits the time of quenching relative to the instantaneous position of the scanning ray to be adjusted.
Patent GB-163835-A (GB)
Title: Machine or apparatus for cutting skins for the production of hat leathers and such like
IPC: C14B5/00
Filed: 1920-03-06
Abstract: 163,835. Dean, J. N. March 6, 1920. Traversing-cutter type.-Machines for cutting leather hat bands comprises a cutter which is moved by power-driven means in an arcuate path over a table carrying the hide to be operated on the cutter moving on a rail carried by a pivoted clamping-member which is rocked in one direction to bring the knife into the operative position on the cutting-stroke and in the other to raise it above the work on the return stroke. The table is manually given a definite movement to feed the work during the inoperative stroke of the knife. The adjustable blade 1, Figs. 9 and 10, is carried by means of flanges 7 on an arcuate rail 11 carried by a rocking frame 8, as shown in Fig. 7, which is pivoted by means of trunnions 9 in bearings 10, Fig. 1, on the framing. Movement is imparted to the knife by a lever 12, Fig. 1, rocked by a link 15 connected to a power-driven disc 16. Movement of the table A to feed the work is effected by a chain 28 driven by a sprocket-wheel 33 connected by a one-way clutch to a shaft 34 on which is loosely mounted a weighted bell-crank lever 35 bearing a roller 36, Fig. 2, on one arm. Pivoted at 38 to the lever 35 is a handle 37 moving in a graduated or stepped slot 39 by means of which the feed of the table, and thus the width of the band cut, is determined through a pawl 40 on the lever engaging a ratchet-wheel 41 on the shaft 34. The lever 35 is held after being set by a spring- controlled pivoted catch 44 on a bell-crank lever 42. Means are provided for locking the clamp frame 8 in the lowered or raised position, consisting of spring-retracted levers which pass respectively below and above stops. At the end of its idle movement, the knife lever 12 strikes one of the levers. thus withdrawing it from below the stop and allowing the frame to be depressed by its own weight, it being locked in the depressed position. This movement, through an arm 50 attached to one of the trunnions 9, rocks the bell-crank lever 42 by lever and link connections, thus freeing the roller 36 and allowing the weighted lever 35 to bear by means of a spring- controlled member 53 against the underside of the bell-crank lever 42. At the end of the cutting movement the locking lever of the frame 8 is freed and is raised by the action of the weighted lever 35. A clamping-bar 8<x> carried by the frame 8 presses on the work during the cutting operation. A counterweight 52 balances part of the weight of the frame.