baber/WOPTO huggingface dataset:
Patent GB-768660-A (GB)
Title: Improvements in or relating to looms for weaving
Inventor: GLEDHILL WALTER VERNON
IPC: D03D45/20
Filed: 1951-10-23
Abstract: 768,660. Automatic weft-mixing looms. GLEDHILL & SONS, Ltd., W. Jan. 23, 1953 [Oct. 23, 1951], No. 24672/51. Class 142 (2). A 4 x 1 automatic loom is converted to a 2 x 2 weft-mixing loom with automatic weft replenishment by the addition of an extra box at the single box end, only two of the four boxes at the-other end being used. The old weft is cut adjacent the box and at the selvedge and the new weft is cut at the selvedge. The loom operates on a four pick cycle. On the first pick, a bobbin in the top box is raised and engages the feeler 11, and if replenishment is necessary a spring turns the feeler to bring a finger 12 into line with a projection 13 on the breast beam. On the second pick, the finger engages the projection and thereby moves a rod 18 which causes a pawl 30 to position a lever 31 beneath one end of a link 33. The link is raised and lowered by a connection from the loom crank and when the lever 31 is beneath one end of the link the other end is moved further downwardly than usual and rocks an arm 39 through a connection 36. A spring loaded finger 43 returns the arm. The arm 39 rocks a member 47 which is longitudinally movable and carries fingers 49 one of which engages a projection 50 and raises a sliding selector member 51. When the member 51 is drawn down on the third pick by the bar 49 engaging a stop 50a, a cop is released from the appropriate magazine compartment and a latch 53 depresses a bar 56 and raises a rod 62 which lifts a lever into the path of an abutment on the slay. On the fourth pick, the transfer hammer is operated and the previously released cop is inserted into the top box, the empty cop passing through the lower box which is empty. Magazine selector mechanism.-A cam 79 is turned each time the transfer hammer operates and brings a different face against a detent 80. The member 47 is thereby moved longitudinally successively to bring one of the fingers 49 beneath one of the projections 50. This mechanism forms the subject-matter of Specification 768,661.
Patent GB-834490-A (GB)
Title: Improvements in and relating to milling cutters
IPC: B23C5/26
Filed: 1957-08-06
Abstract: 834,490. Milling-cutters. SNYDER TOOL & ENGINEERING CO. Aug. 6,1957 [Oct. 15, 1956], No. 24690/57. Class 83 (3). A milling-cutter 24 having axially-adjustable blades 26, carries an axially-adjustable ring 22 engaging the end surface of the machine spindle 5 so that, after grinding the blades, the ring 22 may be adjusted to position the blades in the original axial relationship to the spindle. The cutter body 24 is centred on a spigot 40 of a mounting-ring 20, itself centred on the spindle by a pin 12 secured by a draw-bar 16, and the body and ring are keyed by blocks 52 secured to the ring by screws 54. The ring is keyed to the spindle by blocks 46, secured to the spindle by screws 48. The adjustable ring 22 screws on the ring 20 and is split at 32 and weakened at 34 so that it may be clamped by a screw 32. Screws 62 secure the cutter and rings to the spindle, and screws secure the cutter and ring 20 together. Specification 635,597 is referred to.
Patent GB-869994-A (GB)
Title: Coated webs
IPC: D21H25/14
Filed: 1958-07-31
Abstract: 869,994. Coated laminated materials. UNILEVER Ltd. July 31, 1958 [July 31, 1957], No. 24692/58. Addition to 719,507. Class 140. A composite sheet material composed of at least three layers united face to face comprises at least one layer which is a non-thermoplastic web, said layer being united to another layer by means of an intermediate layer formed by the hot roller fusion of thermoplastic synthetic resinous particles, one or both of the outer layers of the material being formed by hot roller fusion of thermoplastic particles. The material may include two or a plurality of non-thermoplastic webs united by means of an intermediate layer formed by the hot roller fusion of thermoplastic particles, each of the outermost of said webs having an outer coating formed by hot roller fusion of thermoplastic resinous particles. The material comprising two non-thermoplastic webs may be prepared in a single operation. The material may comprise a layer formed by fusion of particles of one kind of thermoplastic synthetic resin united by a layer formed by hot roller fusion of particles of a different kind of thermoplastic synthetic resin to a non-thermoplastic web, which may be prepared in successive operations by effecting hot roller fusion of a layer of loose dry particles of thermoplastic synthetic resin spread on the non-thermoplastic web. The non-thermoplastic web may be of textile, metal foil, paper, cardboard, parchment or cloth. The thermoplastic synthetic resin may be polyvinyl acetate or chloride, polyvinylidene chloride, polyamides, high- and low-pressure polythene, and copolymers of vinyl chloride and vinyl acetate, and of vinylidene chloride and vinyl chloride.
Patent GB-1356385-A (GB)
Title: Apparatus for filling a cavity with electrically insulating  material
IPC: B29C45/14
Filed: 1970-05-21
Abstract: 1356385 Making electromagnetic relays PRECISION RELAYS Ltd 21 May 1971 [21 May 1970] 24738/70 Heading H1N Apparatus for filling a cavity in a member such as an electrical relay comprises injection means 10 for injecting insulating material such as a resin into a cavity 45 in the relay 44, means 19 for locating the relay, pressure control means (not shown) for controlling the injection pressure and a timing mechanism (not shown) controlling the initiation of injection and the period thereof. After the relay 44 is placed and located on the means 19 the latter is lifted by a ram cylinder 22 to engage the surface 17 of a block 16 into which the injection gun 10 projects. Timing means then initiates the operation of the gun to fill the cavity at a predetermined pressure and shut off the gun after a set time when a valve (not shown) is operated to connect an air pressure source (not shown) to a cylinder space 43 causing a port 28 and the relay 44 to move to the left smoothing off the surface of the resin in the cavity.
Patent GB-1581189-A (GB)
Title: Compartment covers for motor vehicles
IPC: E05D11/00
Filed: 1977-06-14
Abstract: Many motor bonnets of front motor vehicles produce danger in case of frontal collision, because the bonnet then is pressed like a razor into the passenger compartment of the vehicle. Other bonnets cannot readily be opened because the edge of the cover to be gripped, is not reasonably accessible. This danger and disadvantage are overcome by using hinge members having two points of rotation, especially swan necks, and by using rectilinear recesses accommodating rolls in such a way that the bonnet can easily be manipulated but nevertheless is very safe in case of a frontal collision. For further protection of the user against the bonnet being blown shut, a special spring bias fixing rod element is incorporated into the bonnet.
Patent GB-1490350-A (GB)
Title: Manufacture of hydroxynaphthaldehydes
IPC: C07C45/00
Filed: 1975-04-30
Abstract: 1490350 2-Hydroxynaphthaldehydes IMPERIAL CHEMICAL INDUSTRIES Ltd 30 April 1975 [5 June 1974] 24838/74 Heading C2C 2-Hydroxynaphthaldehydes are prepared by reacting chloroform with an aqueous solution of a 2-naphthol alkali metal salt solution in the presence of a phase transfer catalyst. The phase transfer catalyst is a substance which transfers a reactant from aqueous phase to non-aqueous phase where it undergoes reaction thus releasing the catalyst back into the aqueous phase, preferred phase transfer catalysts are quaternary ammonium salts of the formula where R 1 , R 2 , R 3  and R 4  are each alkyl, aralkyl, and cycloalkyl, or two together may form a ring with 5 to 7 carbon atoms and X is halogen, bisulphate or hydroxyl, and the equivalent quaternary phosphonium salts. The 2-naphthol starting material preferably has the formula wherein R 1  and R 3  are hydrogen atoms or sulphonic acid groups, and R 3  is a carboxyl or sulphonic acid group or hydrogen.
Patent GB-378661-A (GB)
Title: Improvements in or relating to pumps
IPC: F04C2/18
Filed: 1931-09-04
Abstract: 378,661. Securing pulleys on shafts. MODERN MACHINE TOOLS, Ltd., Butts Works, and WESTON, H., 9, Queensland Avenue, both in Coventry. Sept. 4, 1931, No. 24839. [Class 80 (ii).] A gear-wheel pump 3 is driven by a pulley 5 which is secured to the end of a shaft 19 by means of a pin 22 passed through the shaft and located in slots in the pulley. A detachable outer flange 21 is held by screws 24 which pass through holes in the flange and fit into threaded holes in a packing gland 23. Separate screws 25 secure the flange to the pulley.
Patent GB-148078-A (GB)
Title: Improvements in and relating to microtomes
IPC: G01N1/06
Filed: 1919-10-10
Abstract: 148,078. Darwin, Sir H., and Cambridge & Paul Instrument Co. Oct. 10, 1919. Microtomes.-Consists of a microtome in which the object is rocked about a vertical axis and is fed in a vertical direction to meet a knife carried upon a rest which holds the knife rigidly in any desired position in the plane of cutting. A pillar b integral with the base plate a has knife-edges c co-acting with plane surfaces i on the swinging arm f, a spring serving to maintain contact between the knife-edges and plane surfaces. The arm f is operated by a lever p through a connecting-rod o, and has an annular housing m carrying a partially slit metal ball l through which passes a stem k supporting the object holder g. The holder can thus be rotated about three rectangular axes and can also be adjusted vertically; a screw n clamps the holder in position. The feed-arm r has lateral extensions having plane surfaces co-acting with knife edges d, and is forked at its outer end which is adapted to be fed upwards by a nut u engaging a screw v, the feed motion being operated by the lever p. The arm r is formed with a lug x having a cup bearing z connected by a rod 2 to a bearing 4 secured to lugs formed on the arm f so that the latter is fed upwards by the arm r. The knife 6 is held in arms 7 on a circular holder 8 having a clamping bolt 9 passing through a circular aperture in the base plate a and through a slotted channel-piece 10 one end of which can be depressed by a screw 11 to clamp the knife-holder to the base-plate.
Patent GB-680723-A (GB)
Title: Electric drive unit for looms and the like
IPC: D03D51/00
Filed: 1949-09-28
Abstract: 680,723. Combined clutches and brakes. MARINE ENGINEERING CO. (STOCKPORT), Ltd., SMITH, F., and MANN, B. G. Aug. 25, 1950 [Sept. 28, 1949], No. 24858/49. Class 80 (ii). In a device which is particularly applicable to driving looms and the like, the shaft 2 of an electric motor 1 carries a flywheel 3 to which is secured a member 5 forming the driving part of a cone clutch. The driven member 9 of the clutch is rotatably mounted upon a spigot 8 of the flywheel, a sintered bronze bush 11 or the like being interposed between the two parts, and has a V-grooved pulley-portion 12. A spring 15 urges the clutch into engagement, disengagement being produced by a lever 17, a pin 19 and a pressure-plate 14. When the lever 17 is operated, the pressure-plate 14 is brought into contact with a brake pad 20. The clutch friction linings may comprise two strips 10 of synthetic material, as shown. In a modification which permits the V-grooved pulley-portion 12 to be of reduced diameter, Fig. 3 (not shown), the flywheel spigot 8 is cut short, while the driven member 9 is bored to two different diameters adapted to run on the spigot and motor shaft respectively.
Patent GB-157526-A (GB)
Title: Improvements in anti-creep devices or anchors for railway rails
IPC: E01B13/02
Filed: 1919-10-11
Abstract: 157,526. Yates, H. Oct. 11. 1919. Creeping of rails, preventing; rail keys.-A rail anchor camprises a stamped or forged clip 2 of steel having at one end a lug 7<a> engaging one rail flange and at the other end a lug 6<a> engaging a solid taper key or wedge 3 of cast iron which is applied against the other rail flange. The underside of the key slopes upwardly at 3<x> away from the clip, while undue strain on the clip is avoided by providing the key with a clearance 9. The key may have an abutment 5 adapted to coact with the sleeper, or the key at its wider end may bear against the corresponding end of the key securing the rail to the sleeper. The lug 7<a> may be bent towards the sleeper.
Patent GB-322438-A (GB)
Title: Herbicidal solution of hygroscopic chlorate
IPC: A01N59/00
Filed: 1928-08-30
Abstract: 322,438. Chipman, R. N. Aug. 30, 1928. Weed-destroying compositions. - Hygroscopic solutions containing calcium or magnesium chlorate for use in destroying weeds are prepared by dissolving together in water calcium or magnesium chloride and sodium chlorate so as to produce the desired chlorate by double decomposition. The chloride is preferably added in excess of the chemically equivalent proportions. For treating certain classes of weeds the manufacture may be conducted in presence of insufficient water to retain in solution the whole of the sodium chloride produced, so that part of this substance separates out. Reference is made to the prior use of sodium chlorate solution, and of mixtures of chlorates and chlorides, such as those of calcium, for destroying weeds. It is stated that the production of solutions containing calcium chlorate and calcium chloride bv the action of chlorine on lime, or by the use of calcium chlorate as an isolated salt, are economically unsuitable. Specifications 10053/93, [Class 2, Acids and salts, Organic &c.], and 273,268 are referred to.
Patent GB-601737-A (GB)
Title: Improvements in or relating to radio antennae
IPC: H01Q19/24
Filed: 1945-09-27
Abstract: 601,737. Transformers. JACKSON, D., and PYE, Ltd. Sept. 27, 1945, No. 25048. .[Class 38 (ii)] [Also in Group XL (c)] A matching transformer 43 associated with a dipole aerial at the top of a mast (see Group XL (c)) comprises a secondary winding consisting of copper strip wound with interleaved insulating strip and a primary winding surrounding the secondary and consisting of a number of double turns of wire. The copper strip has lateral projections 44 soldered to conducting strips 35, 36, One end of each of the primary coils is soldered to a coupling member 21 and the other ends are soldered together and to the strip 36 to form a centre tap.
Patent GB-649065-A (GB)
Title: Improvements in or relating to multi-channel electrical signalling systems
IPC: H04L5/26
Filed: 1948-09-27
Abstract: 649,065. Multiplex radio signalling. GENERAL ELECTRIC CO., Ltd., and BRYDEN, J. E. Sept. 27, 1948, No. 25142. [Class 40 (v)] In a multichannel signalling system, switching means successively and repeatedly transmit each of a plurality of carrier oscillations of different frequency, each of which is frequency or phase-modulated by the respective signals. The switching means are arranged so that there are never transmitted simultaneously, two carriers of adjacent frequencies. In the embodiment described, there are seven control signals of the same frequency effecting a control in dependence upon their phase relationship to a reference signal. The control and reference signals frequency-modulate sub-carrier generators 5 ... 12, respectively, which operate at equally-spaced frequencies, except for generator 12, whose frequency is the highest and has double the normal spacing from generator 11. The radio carrier generated in transmitter 12 is continuously modulated by the reference signal sub-carrier generator 11. An electronic or motor-driven switch 24 alternately supplies, to modulate the transmitter 13, the combined sub-carriers from generators 5, 7, 9 and 11 and generators 6, 8 and 10. The demodulated. subcarrier outputs from the radio receiver 14 are applied in parallel to filters 15 ... 19 which pass respectively, the first and second, the second and third, the fourth and fifth, the sixth and seventh and the eighth sub-carrier frequencies. The reference signal is derived from the frequency discriminator 21, fed from filter 19 through limiter 20. Each of the other filters is connected to a limiter 22 feeding two discriminators 23 tuned respectively to the two relevant sub-carriers and yielding the appropriate control signal through a low-pass filter 25 which eliminates beat interference. Specification 642,855, [Group XXXV], is referred to.
Patent GB-900312-A (GB)
Title: A method of and apparatus for preparing a cop for drawing off a reserve coil
IPC: B65H67/08
Filed: 1958-08-06
Abstract: 900,312. Unwinding reserve-ends from cops for piecing. REINERS, W. Aug. 6, 1958 [Aug. 10, 1957], No. 25185/58. Class 120 (2). To enable the end of a reserve coil R on the nose-end of a cop to be found and drawn off, the cop being of the kind having a reserve coil at each end joined by a few widely spaced turns R1, the reserve coil R2 at the base is first axially removed and then severed. The cops derive from a spinning-machine where cops are built in succession, the reserve coil at the base enabling the leading-end to be transferred from one cop to another during this operation, while the purpose of finding the end of the nosewinding is to enable the yarn to be pieced in re-winding. The removal of the base winding is done by suction or air under pressure or both; in the winding-machine of Fig. 2 it is done by a suction pipe 5 which can pivot to the dottedline position to take hold of the end of the basewinding and the starting-end of the winding proper, both ends being severed by shears 6. A suction tube 1 is now moved to the dotted line position and takes hold of nose-winding R and the coils R1, whereupon a detent 7 is released to allow the cop to be impaled on to a pin 15 which is rocked to bring the cop to position 12a. As the cop descends, tube 1 have resumed its full-line position, the yarn is drawn off through a slot 8 taking up position F2 over the guide 16, where it is caught by a deflector 2 and laid over a knotter 4 for joining to the thread depending from the winding point Y. Tube 1 and member 2 may be interconnected. As detent 7 is released, detents 9, 10 are moved first one way to allow a further cop to descend on to detent 7 and then the other way to stop the descent of further cops.
Patent GB-390721-A (GB)
Title: Improvement in powder slipping clutches
IPC: F16D37/00
Filed: 1932-09-09
Abstract: 390,721. Friction clutches. RUDQVIST, C. A., Liding÷, Sweden. Sept. 9, 1932, No. 25194. [Class 80 (ii).] Progressive starting in powder clutches is effected by mounting the driving-blades 13 to slide centrifugally between radial or substantially radial guides 11 against the action of coil springs 17, Fig. 2, or interconnected blade springs 25, Fig. 3. The blades are initially clear of the powder 21, as shown in the lower halves of the Figures, and move during the acceleration period to an outer position determined by contact of pins 15 with stops 16 on the guides 11. The or each pair of opposed blades may be connected by a single spring. The spring action may be increased as the centrifugal force rises, e.g. by arranging two or more springs to come into action successively on each blade. To avoid clogging by the powder, the edges 12 of the guides are bevelled to give line contact with the blades, and the blade ends 14 adjacent to the end walls of the driven drum 20 are formed with one or more sharp edges. The guides 11 are tapered in cross-section to offer low resistance to their passage through the powder. The drum 20 may be connected to a driven shaft 22 or formed as a pulley &c.
Patent GB-334052-A (GB)
Title: Improvements relating to metal flooring and like supporting surfaces
IPC: E04C2/42
Filed: 1929-08-19
Abstract: 334,052. Murray, W. C. Aug. 19, 1929. Gratings.-A metal flooring or like supporting surface consists of a self-contained grid in the form of a mesh 1, arranged horizontally upon a plurality of flat bars 2 spaced apart and having their major axes vertical. The grid is welded or electroforged to the bars to constitute an integral structure. The mesh may be formed by weaving, expanding, or perforating. The flooring is preferably constructed in sections, with margin bars.
Patent GB-204209-A (GB)
Title: New or improved apparatus for indicating the number of vacant seats on the top of tramway vehicles or the like
IPC: B60N5/00
Filed: 1922-09-19
Abstract: 204,209. McGown, R. Sept. 19, 1922. Drawings to Specification. Indicating number of vacant seats.-Apparatus for indicating the number of vacant seats on the tops of tramcars &c. is actuated by the weight of each passenger passing over yielding stair treads. The indicator is operated by forward and reverse pawls controlled by impulse magnets which have their circuits completed at switches controlled by the stair treads. Two or more indicators may be associated with a single mechanism.
Patent GB-910780-A (GB)
Title: Improvements in or relating to casting machine feeding mechanism
IPC: B22D17/30
Filed: 1961-07-13
Abstract: 910,780. Casting-machines. BUEHLER GEB. July 13, 1961 [July 14, 1960], No. 25472/61. Class 83 (1). [Also in Group XXVI] Metered quantities. are fed to a die-casting machine feed chamber 3 by an elevating screw pump 1. The pump screw 14 which is preferably of graphite is driven by an electric motor 15 with a governor 16, the duration of the pumping action being controlled either by manual control of a push-button 25 or automatically by a timer 28.
Patent GB-445413-A (GB)
Title: Improvements in television
IPC: H01J31/28
Filed: 1934-09-04
Abstract: 445,413. Television transmitters. HENROTEAU, F. C. P., 150, Elgin Street, Ottawa, Canada. Sept. 4, 1934, No. 25483. [Classes 39 (i) and 40 (iii)] An image is projected on a sensitized screen 2 to raise its elements to varying higher potentials, an electronic emission is produced from successive points of an adjacent surface 3, so that the electrons are attracted to the adjacent elements of the screen to return them to their original potential, and a transmitter 11 is controlled by the varying drop in potential so produced. The photo-electrons from the lines of minute photo-electric globules on the screen 2 are attracted by the positive sensitized. metallic lines on the plate 3, and thus pass to earth 20 with the result that the silver globules are raised to varying potentials depending on the incident image. Extensions 15 of the lines on the plate 3 are subjected in succession to a cathode-ray which provides a conducting path between the extension and an earthed grid 23. The image of the rectilinear filament of a lamp 30, arranged transversely to the lines on the screen, moves along the lines and causes a photo-electric emission from that line which is momentarily earthed at 24. The combined movements of the cathode-ray and the lamp 30 provide a complete scanning. The emitted electrons are attracted to the adjacent globules on the plate 2 to return them to their original potential. By capacitive coupling between the globules and metallic lines on the other side of the plate, the varying drop in potential of the globules is communicated to the transmitter to which the lines are connected. Variations in potential due to changes in the general level of illumination are eliminated by a high-pass filter 9. Interference due to the successive reductions of the potential of the lines on the plate 3 is neutralized by a variation in opposite phase. The image may be projected and the screen scanned in two separate stages. The return movement of the cathoderay is too fast to reduce the potentials of the lines, or it may be deflected off the extensions 15. To avoid sealing the plate 12 in the wall between the cells 1, 13, the potential of the lines may be controlled by induction. According to modifications : the cathode-ray apparatus 21, 22 is in a high-vacuum cell communicating with the cell 1, Fig. 6 (not shown) ; the scanning is entirely mechanical or entirely electrical; the image is transmitted in two or more parts simultaneously, Fig. 7 (not shown) ; to avoid the difficulty of accurately adjusting the relative positions of the plates 2, 3, the lines and spaces on one plate are twice as wide as those on the other, Fig. 8 (not shown).