baber/WOPTO huggingface dataset:
Patent GB-1178467-A (GB)
Title: Static switching self-regulating transformer tap changer
IPC: H02H3/12
Filed: 1967-03-17
Abstract: 1,178,467. Transformer tap-changing systems. GENERAL ELECTRIC CO. 17 March, 1967 [13 April, 1966], No. 12531/67. Heading H1T. [Also in Division G3] The secondary voltage of transformer 12 is maintained at a predetermined value by the tap-changing system shown in which a change in secondary voltage from the desired value is sensed by a circuit 40 and the output signal thereof used to change from one to another of semi-conductor switch circuits 80-83 which interconnect tappings of the primary windings 13, 14, the change-over being effected at zero current by means of a zero current defector 54 generally similar to that described in Specification 1,178,468. The D.G. error signal from sensing circuit 40 is applied to a D.C. amplifier and bi-stable flip-flop circuit 45 which produces two output signals at 46, 47 and 48, 49 for application respectively to a reversible counter 60 and a diode matrix 51. The polarity of the signal from circuit 40 determines the polarity of the signal on leads 46, 47 and which of leads 48, 49 carries a negative signal, the latter signal persisting for the duration of the error and causing the matrix 51 to produce a signal of like sign and duration, providing the counter 60 is not at an extreme position corresponding to a maximum or minimum tap. position as indicated by the combination of signals applied from the counter output to the diode input via leads 61<SP>1</SP> ... 64<SP>1</SP>. The output from matrix 51 is applied to a pulse generator 52, which is also supplied by the zero current detector 54 and produces a pulse output when both signals, exist, the input signal from 53 being used to charge a capacitor and so provide a time delay to ensure that the generator does not respond to transient changes of transformer secondary voltage. Pulses from the generator 52 change the state of the counter 60 in a forward or reverse sequence determined by the polarity of the signal on leads 46, 47, the counter producing on leads 61 ... 64 four possible combinations of signals for application to a diode matrix 65. The latter circuit produces a signal on one of the leads 70 ... 73 according to the input combination from the counter 60 and this signal is applied to a circuit 66 whose outputs 74 ... 77 control respective transistors in the switch circuits 80 ... 83, each of which comprises a transistor connected across a full-wave rectifier bridge. The various parts of the control system are described in detail, Figs. 2 to 10 (not shown), together with an analysis of the operation of the system during a tap change sequence. Fig. 11 (not shown).
Patent GB-865233-A (GB)
Title: Improvements in or relating to bed cradle appliances convertible to other purposes
IPC: A47B23/00
Filed: 1958-04-22
Abstract: 865,233. Invalids' trays, tables or bed cradles, leg or bed rests. DAVIDSON, P. B. April 6, 1959 [April 22, 1958], No. 12677/58. Classes 52(2) and 52(3). A bed table or cradle has a rectangular top frame 2, 4 and hinged foldable side frames 8 provided with adjustable extensions 12. A flap 14 is hinged to frame member 2 so as to be movable between a horizontal position in which it forms a continuation of shelf 16 and a position, as shown, in which it is supported by strut 15 and can be used as a book rest. A stainless steel or chromium plated mirror (Fig. 6, not shown) may be hinged from the upper edge of flap 14 and rest against rib 23 when required. The extensions 12 are adjustable by wing nuts 13 to a folded position parallel to tie rods 10. Other uses of the table are as a leg or foot rest (Figs. 7 and 8, not shown) and as a bed rest (Fig. 5, not shown). Reference is made to a tubular metal construction having telescopic legs.
Patent GB-437796-A (GB)
Title: Improvements in or relating to endless track vehicles, particularly tractors
IPC: B62D55/084
Filed: 1935-04-29
Abstract: 437,796. Endless - track vehicles. LANZ AKT.-GES., H., 53, Lindenhofstrasse, Mannheim, Germany. April 29, 1935, No. 12802. Convention date, May 26, 1934. [Class 79 (i)] A rocking beam c on which the vehicle or tractor body is partly supported bears at its ends on the roller truck frames q by means of ball joints comprising horizontal flat ends s of the beam c, part-spheres g slidably engaging therewith, and housings h for the sphere parts. The housings h fit in the truck frames and are secured thereto by screws r. Dust is excluded from the ball joints by leather bellows k. In assembling the parts the part-spheres are temporarily secured in the housings h by means of screws at m. After the beam has been inserted these screws are removed. The beam c may be a laminated spring. The motor housing b is supported on the rocking beam c, and the truck frames can oscillate about the rear axle shaft a.
Patent GB-593685-A (GB)
Title: Improvements in razor blade magazines
IPC: B65D83/10
Filed: 1944-07-05
Abstract: 593,685. Razor blade magazines. BENJAMIN, S. H. July 5, 1944, No. 12814. Convention date, July 1, 1941. [Class 18] A safety-razor blade magazine has a top 10 extending beyond the sides 13 and notched at 11 to locate the magazine in the holder of Specification 561,652, [Group XIV], and the bottom has a longitudinal opening 40; studs 16 extend to within one blade thickness of the bottom, against which the blades are pressed by a spring 19.
Patent GB-1399565-A (GB)
Title: Display or storage rack for tennis rackets or the like
IPC: A47F5/01
Filed: 1973-03-16
Abstract: 1399565 Displaying tennis and like rackets; racks RELTON CORP 16 March 1973 [17 March 1972 26 Feb 1973] 12819/73 Headings A4B and A4T A rack for displaying or storing tennis or like rackets comprises an elongated support member 6, Fig. 1, having means 7, ... 13 for mounting the member in a horizontal position, a plurality of individual racket support bays along the length of the member, each bay being skewed relative to the length of the support member for supporting the heads of adjacent rackets parallel to and offset from each other whereby to expose a portion of the face of each racket, each bay being formed by two limbed bars 16 each bonded at the crook 17 of the limbs to the support member. The support member consists of a rod 6 which can be mounted in a horizontal position by mounting means comprising rods 7 connected by sleeves 8 to bolts 9 having pegboard mounting brackets 11. The mounting bars 16 are spotwelded at the crooks 17 to the member 6 and the base 19 of each bar is brazed or spot-welded to the leg 18 of an adjacent bar to form a series of bays each of which can support the head of a racket, the rackets being parallel to the bases 19 of the bars. Beads 21 inhibit removal of the rackets and necessitate initial lifting thereof to permit removal. The rack can be inverted so as to be left or right-handed or the bays may be symmetrical by using bars having equal length legs. In another embodiment, the legs 18 have a hook (31), Fig. 2 (not shown) extending into the bay to act as the inhibiting means and an extension (32) parallel to the base to inhibit accidental dislodging of a racket. In a further embodiment, the legs of the bars have offset positions which act with the beads to prevent twisting of the rackets in the bays. The bars have a shape at the crooks thereof permitting spot-welding at two points. The rack has pegboard mounting brackets which may engage apertured plates secured to a wall, screws acting between the brackets and plates to level the rack.
Patent GB-746647-A (GB)
Title: Improvements in or relating to diving boards for swimming pools
IPC: A63B5/10
Filed: 1954-05-04
Abstract: 746,647. Diving boards. GERRITSEN, D. J. May 4, 1954 [May 6, 1953], No. 12897/54. Class 132(1) The longitudinal cross-section of a cantilever type diving board 1 is such that from a point at or near the diving end to the point of maximum thickness. the thickness x at any section is practically equal to a # y where a is a constant and Á is measured from a point at or near the diving end of the board. As shown, the diving board 1 increases in thickness from either end to the part engaging the central fulcrum 2, the upper surface being flat and the lower surface being formed by two parabolas. The board may be made of "Douglas fir".
Patent GB-253694-A (GB)
Title: Apparatus for comminuting or grinding china clay
IPC: B02C21/02
Filed: 1925-05-18
Abstract: 253,694. Varcoe, R. G., and Garvey, H. P. May 18, 1925 Rasping and like abrading apparatus.-In apparatus for comminuting or grinding chinaclay, the material is fed from a hopper or shoot a, Figs. 1 and 3, to a revolving disc b which carrier on the face against which the clay gravitates knives c having curved or double-inclined cutting- edges which co-operate with correspondingly shaped slots b<1> or series of holes in the disc. The knives c are removable and may be adjustable, each knife being bedded on a wooden packing- piece c<1>, Fig. 6, secured by screws c<2>. The cutting-edge of each knife is bevelled, a clearance of about half an inch being left between the edge of a knife and its slot. By using tapered packing-pieces c<1>, the knives can be, inclined to the surface of the disc. The clay is severed and fractured or disintegrated by the knives and passes through the slots b<1> into a delivery funnel or shoot d. A portable machine mounted on wheels j<1> is shown, the shaft f of the disc b being driven through chain gearing from an electric motor h. A table i masks the lower part of the disc and carries a hinged guard i<1>. With a stationary machine, a screw or feed device may be used to raise the lumps of clay to the feedhopper or to lift the delivered comminuted clay.
Patent GB-941541-A (GB)
Title: Skiving machine
IPC: C14B1/22
Filed: 1960-04-12
Abstract: 941,541. Sharpening skiving knives. MANUFACTURERS SUPPLIES CO. April 12, 1960 [April 13, 1959; Feb. 23, 1960], No. 13007/60. Heading B3D. [Also in Division B4] A belt-driven grinding wheel 84 is mounted in a bearing 86 carried by a bell-crank 386 which by adjusting a screw 62 can be swung by a spring 90 to locate the grinding wheel against a skiving knife 26.
Patent GB-580613-A (GB)
Title: Improvements in or relating to tire rim
IPC: B60B25/04
Filed: 1944-07-07
Abstract: 580,613. Vehicle wheels. FIRESTONE TIRE & RUBBER CO. July 7, 1944, No. 13023. Convention date, July 21, 1943. [Class 144 (ii)] In a rim comprising a fixed flange 12 and a detachable flange 18 a coned ring 21 is detachably fitted on the cylindrical edge-portion of the rim-base 11 to provide a wedge-seating for the associated tyre-bead 13. In the construction shown, the ring 21 is split and carries a non- creep stud 23 adapted to engage the transverse valve-slot 19 in the rim-base. The outer (thicker) edge of the ring is flared to seat against the curved base of the flange 18 which is housed in a groove 17 in the rim. The flange 18 may be of the split, or endless, type. Specification 491,187 is referred to.
Patent GB-1466631-A (GB)
Title: Roller shutter
IPC: E06B7/00
Filed: 1975-03-27
Abstract: 1466631 Shutters BUNKA SHUTTER KABUSHIKI GAISHA 27 March 1975 [29 March 1973] 13073/75 Heading E1J A rolling shutter comprises a plurality of overlapping slats 4 each with pivot pins 6 at their lower ends engaging in upright rails 3, means 8 connecting each pin to a lower slat to effect its outward pivotal opening. The slats 4 have hooks 4a for pins 6 and recesses 4c for pins 7; links 8 extend between pins 6 and 7. The upper edges of the slats have clamping strips 5 affixed. The slats 4 form a central portion of the shutter, upper and lower portions comprising interengaging slats 10. The slats are lifted by rotation of a shaft in box (2) above the opening. When the shutter is wound down the opening is closed, further winding then causes links 8 to open slats 4 by pivoting about pins 6 until they abut stops 9. When the shutter is wound in the opposite direction, slats 4 close and then the shutter is wound'up and around the shaft.
Patent GB-1124769-A (GB)
Title: Household wrap dispenser and cutter
IPC: A47K10/38
Filed: 1966-03-24
Abstract: 1,124,769. Dispensing web from a roll. R. N. BRANDON. 24 March, 1966, No. 13084/66. Heading A4G. Household wrap 20, 42 passes from a roll in a container 11 having a removable top 17, between inner and outer walls 28, 39 hinged to the top, over a slotted hump 28a, 30 in the inner wall containing a knife 34 and out at 31. A length of web is pulled out and by depressing the walls against a sponge rubber spring 32 the wrap is gripped by members 28b, 30b on either side of the hump and as the hump also descends, the knife is raised by lid members 23 entering the slot base to cut the wrap. Two resilient rubber members on the lid on either side of a cutter may replace members 32, 28b, 30b and only the outer hinged top is provided, the cutter being formed integral with a moulded lid.
Patent GB-345539-A (GB)
Title: Improvements in extensible side supports for drawers, shelves, and other slidable structures
IPC: A47B88/493
Filed: 1930-04-29
Abstract: 345,539. Rectilinear - motion bearings. AUTOSET CLAMP CO., Ltd., TOWNSEND, C. R., and SKINNER, J. G., 19, Charlotte Street, Birmingham. April 29, 1930, No. 13121. [Class 12 (i).] In a three-part telescopic side-support for drawers or sliding shelves, the middle bar c carries three rollers f, g, h and the bearer bar a a fourth roller e. The outer bar d rides over the rollers f, g, which have fixed pivots, and beneath the roller h which has limited longitudinal freedom in a guide h3 on the middle bar. The latter is supported by the rollers f, g, and at its rear end contacts with the roller e which can also travel longitudinally on the bearer bar. Pivoted catches i, j prevent accidental separation of the outer and middle bars respectively.
Patent GB-437613-A (GB)
Title: Improvements in and relating to the manufacture of leaded lights
IPC: C03C17/00
Filed: 1934-05-01
Abstract: 437,613. Leaded lights; glazing ; window frames. OSBORN, H. W. E., Newlyn, Kings Road, Alton, Hampshire. May 1, 1934, No. 13147. [Class 20 (iii)] Leaded lights are formed by casting cames 1 of lead or composition around the edges of the glass panes in a mould, as shown in Fig. 2. The lights may be cast in a metal channel frame or secured thereto by riveting and may be joined by riveting to metal strips 8, Fig. 7, or by inserting the edge of the panes of one section in a groove of an adjacent section and welding the cames. The cames may be formed with strengthening ribs and rounded corners and may have corner or longitudinal reinforcements, and may have fiuted or dovetailed edges for keying with cement or for joining together.
Patent GB-495110-A (GB)
Title: Improvements in and relating to gas valves
IPC: F16K41/02
Filed: 1937-05-08
Abstract: 495,110. Valves. BRUNTON, H. D. May 8, 1937, No. 13225. [Class 135] A screw-down valve 3, particularly for use in systems for distributing low-pressure hydrocarbon gas such as butane, is fitted with a stuffing-box packed with a felt washer 9 soakec in tallow. Unsoaked felt washers 10, 11, may be placed above and below the washer 9.
Patent GB-271469-A (GB)
IPC: B65B27/12
Filed: 1927-05-17
Abstract: 271,469. Sauvegrain, L. J. May 18. 1926, [Convention date]. No Patent granted (Sealing fee not paid). Baling-presses.-A hay baling apparatus comprises a hopper 4 in which the material passes an adjustable fork 28, Fig. 3, and combing teeth 35 and is forwarded by teeth 39, 31 to a position above a compresion device 49, retaining teeth 40 being momentarily depressed to allow passage. The device 49 then rotates about its pivot 49<1> into the position shown in Fig. 5, forcing the material along a tapered conduit 7 towards a binding apparatus, not shown. In order to conform to the shape of the conduit, the device 49 comprises two pivoted parts 63, 64 normally held in the position shown in Fig. 3 by a spring. Front forks 67, pivoted at 69, forward the preceding charge to the binding apparatus and ride back over the top during the return stroke. The apparatus is geared to work in cycles, the moving parts being declutched from the driving shaft at the end of each operation.
Patent GB-606116-A (GB)
Title: Improvements in or relating to processes for the polymerisation of vinyl compounds
IPC: C08F14/06
Filed: 1945-05-28
Abstract: Vinyl chloride alone or together with other polymerizable compounds, e.g. vinyl acetate, is polymerized in the mass under heat and pressure in the presence of a quantity of a peroxide polymerization catalyst containing active oxygen not exceeding 0.015 per cent of the monomer and of additional substances capable of fixing the hydrochloric acid liberated during the process.  The quantity of catalyst used is lower than that required to yield the same polymerization ratio in the absence of the additional substances. Specified substances are alkaline salts, e.g. trisodium phosphate or salts of carboxylic acids, e.g. cadium, zinc or lead acetate, formate and oxalate.  Preferably, the reaction medium in addition contains acetic acid or anhydride.
Patent GB-457882-A (GB)
Title: Improvements relating to bread slicing machines
IPC: B26D1/553
Filed: 1935-05-07
Abstract: 457,882. Rectilinear-motion bearings. DOBSON, F. M., and DOBSON, J. S., (trading as DOBSON & SONS, T. F.), Eden Street, Blackburn. May 7, 1935, No. 13398. [Class 12 (i)] [See also Group I] In bread-slicing machines wherein two sets of spaced sliding blades A, A<1> are mounted in frames B, B<1> which reciprocate in opposite directions, the frames are formed with slots for the reception of metal strips b which are adjustable in slots c in vertical or inclined guides C. The guides are fitted with grub screws c<1> which can be actuated to cause the strips to project more or less out of the slots c.
Patent GB-669233-A (GB)
Title: Improvements in connection clips for electrical circuit elements
IPC: H01G4/228
Filed: 1950-05-30
Abstract: 669,233. Wire couplings. WELWYN ELECTRICAL LABORATORIES Ltd. (Soc. Elettrotecnica Chimica Italiana). May 30, 1950, No. 13433/50. Class 38 (i). A terminal for a cylindrical component 1, e.g. a resistor, comprises a flat metal ring 3 placed on the surface of the component so that its plane is normal to the components axis and the ring grips the surface to prevent relative movement with the component. A pig-tail, lead, or mounting - lug 5 may be secured to the ring at 4. In a modification the ring is split, the two ends 6, 7 thereof being adapted to be brought together when the ring is positioned in a groove on the component, Fig. 3 (not shown). The ring ends 6, 7 may be secured together by a nut and bolt or by solder or welding and the mounting-lug, the pig-tail, or the lead also secured thereto.
Patent GB-664794-A (GB)
Title: Improvements in or relating to the manufacture of silage and apparatus therefor
IPC: A01F25/16
Filed: 1949-05-19
Abstract: Silage is made by piling green fodder between substantially parallel walls.  The walls consist of flanged concrete panels bolted together and sunk in the ground, and are of decreasing height at each end. The material is pressed down, as by vehicle wheels, and finally covered with straw.
Patent GB-289266-A (GB)
Title: Improvements in or connected with combined door springs and checks
IPC: E05F3/06
Filed: 1927-05-19
Abstract: 289,266. Nettlefold & Sons, Ltd., and Ely, C. A. May 19, 1927. Operating doors by springs; checks.-In a door spring and check of the kind comprising a chamber e on the door and containing a liquid check and a closing spring operated by links c, d connected to a bracket on the door frame, the bracket end of the link d is hinged to a member g that is movable against spring pressure towards the hinged edge of the door as the door opens. The arrangement allows of the door being secured in an open position approximately parallel with the plane of the door frame. The member g is slidable in a tubular bracket f against the action of a compression spring h as the door is opened. It is guided by a rod secured to the ends of the bracket, the slot f<3> of which is normally covered by an extension g<4> of the part g<2> connected to the link d.
Patent GB-268179-A (GB)
Title: Improvements in and relating to the manufacture of accumulators, or electrical storage batteries
IPC: H01M4/14
Filed: 1926-05-28
Abstract: 268,179. Williams, S. J. May 28, 1926. Electrodes. - An accumulator electrode is made by casting the metal frame or grid 3 round blocks of active material 5 openings 6 being left to allow for expansion and contraction of the electrode. The electrode may be reinforced by frames or cages embedded in the active material.
Patent GB-135418-A (GB)
IPC: G01P3/06
Abstract: 135,418. Berry, R., and Lambert, E. A. April 16, 1919. Differential speed indicators. -In apparatus of the type described in Specifications 18851/05 and 1591/10 employing a constant-speed disk 1 engaged by a friction wheel 10<1> mounted on the engine-driven screwed spindle 9, the to-and-fro movements of the wheel are converted into rotary movements of a cylinder 14 disposed horizontally and carrying the pointer 15. The friction wheel 10<1> is mounted on the spindle by ball bearings and engages through balls 11<2> the guided sleeve 11' having a pin engaging a helical groove on the cylinder. This groove is in two equal portions of opposite hand so that the pointer indicates in one direction only, irrespective of the direction of the engine. The drive of the disk 1 by the motor 5 is maintained constant by a centrifugal governor 17 connected to a sliding disk 18 co-operating with a fixed braking- member.
Patent GB-120022-A (GB)
Title: Combined Depth-adjusting and Protecting Device for use on Boring Machines and the like.
Inventor: OLSEN CARL MARTINIUS
IPC: B23B51/10
Filed: 1918-08-20
Abstract: 120,022. Olsen, C. M. Aug. 20, 1918. Drills.-Consists in a gauge for determining the depth of a hole or countersink. In Fig. 1 is shown one form of depth gauge consisting of a bellmouthed tubular member g which is screwed on to the spindle-end and secured by a locknut e. In one modification, the gauge g is screwed into a sleeve secured to the spindle-end bv a set-screw and in another the upper end fits over the spindleend and is adjustably secured by a set-screw in an inclined slot. The gauge also serves as a protector for the tool.
Patent GB-581470-A (GB)
Title: Improvements in lubricators or oiling devices
IPC: F16N21/06
Filed: 1944-07-17
Abstract: 581,470. Lubricators. ADAMS, G. E. July 17, 1944, No. 13583. [Class 12 (iii)] [Also in Group XXII] A hinge pin mounting for a lubricator cup cover comprises a sheet metal collar a having a pair of perforated ears or lugs b, adapted to receive the hinge pin, which are connected at their upper edges by an integral bridge piece c. The collar is adapted to slide on to and fit around the top of the lubricator cup. The mounting is formed by pressing the sheet metal blank, d Fig. 4, into a cup shaped member and then stamping out the centre of the bottom of the cup leaving a flange e to be finished by a turning or grinding operation. The flange e rests on the top of the lubricator cup and gives rigidity to the collar and lugs. The mounting may be soldered or brazed to the cup and the hinge pin may have a torsion spring arranged around it to keep the cover closed.