baber/WOPTO huggingface dataset:
Patent GB-493401-A (GB)
Title: Improvements in the method and means for bending sheets of wood
IPC: B27H1/00
Filed: 1937-11-08
Abstract: 493,401. Bending wood. MICHAELIS, K. Nov. 8, 1937, Nos. 30580, 30581, and 30582. Convention dates, Nov. 14, 1936, Aug. 14, 1937, and Sept. 29, 1937. [Class 145 (ii)] Sheets of wood are first rendered temporarily flexible by applying heat to that side which after bending is the inner side and is then forced around and into contact with a mould surface curved in one direction. The sheet 8, Fig. 1, is heated on one side by an electric or other heater 5 and its end is secured by a clamp 7 to a cylindrical mould 3 mounted on an axis 2 and rotated, when the sheet is sufficiently flexible, by a weighted arm 9. Rollers 6 prevent the sheet from lifting, the inside of the mould may be heated by a heater 4. The heater 5 may be flexible and may also move with the wood round the mould. The wood may be secured to an arm by which it is drawn around a stationary cylindrical mould. The edge of a wood sheet may be fixed to the mould which is then rolled on to the sheet. Two such moulds may be applied to a sheet so as to bend it in opposite directions. In a modification, Fig. 7, the inside of the sheet may be heated from the chamber 87 supplied with hot gas or steam or by jets 85, 86 carried by the rotatable mould which may also be heated. Springs, motors or gearing may be used instead of weights for rotating the molds.
Patent GB-470178-A (GB)
Title: Golf clubs
IPC: A63B53/12
Filed: 1935-11-05
Abstract: 470,178. Shafts. VICKERY, N. P., and AMERICAN FORK & HOE CO. Nov. 5, 1935, No. 30582. [Class 132 (ii)] Comprises a tubular shaft for a golf club having a resiliently flexible or whippy portion localized high up near, but below, the hand grip, and a relatively stiff portion, C to A, which extends from above the middle of the length of the shaft to the head and has its wall throughout of uniform greater thickness than the resiliently flexible portion. In one form the shaft is cylindrical from D to B and then tapers to the head. In a modification the top portion tapers from C to D. Specification 3288 /13, [Class 132 (ii)], is referred to.
Patent GB-1012842-A (GB)
Title: Improvements in or relating to wide-band high frequency amplifiers
IPC: H03F3/60
Filed: 1964-08-04
Abstract: 1,012,842. Transistor amplifying circuits. TELEFUNKEN PATENTVERWERTUNGSGESELLSCHAFT. Aug. 4, 1964 [July 20, 1963], No. 30624/64. Heading H3T. The upper frequency limit of a wide band transistor amplifier is raised by coupling the transistors together by a transmission line L1 which is between a fifth and an eighth of a wavelength long at the upper frequency limit of the amplifier and is of relatively high impedance, i.e. 100 to 300 ohms. A similar line couples the output transistor T2 to the load Y2; if the latter is appreciably reactive, the overall response may be levelled by designing this latter stage to be of lower cut-off frequency than the first stage T1: alternatively, frequencydependent negative feedback may be used.
Patent GB-1049408-A (GB)
Title: Improvements in or relating to methods of producing pn-junctions
IPC: H01L29/00
Filed: 1964-08-04
Abstract: 1,049,408. Semi-conductor devices. SIEMENS & HALSKE A.G. Aug. 4, 1964 [July 23, 1963], No. 30697/64. Addition to 966,257. Heading H1K. In making a semi-conductor device a lightly doped monocrystalline semi-conductor layer is deposited on a carrier body of the same material by thermal decomposition of a gaseous compound of the semi-conductor. One or more limited surface zones of the carrier are heavily doped with donor and acceptor impurities. The dominant impurity has the lower diffusion coefficient so that during the annealing process during and/or following deposition the other impurity preferentially diffuses outwards to the surface of the deposited layer to form a PN junction in the layer. The doping of the limited surface zones may be effected by localized deposition or diffusion from the vapour phase through a stencil or oxide mask of both impurities, or of one impurity where the substrate is already doped with the other. Alternatively the impurities are deposited over the entire surface and then etched from the areas where not required. The method may be used to form varactor diodes but is described as applied to the formation of the collector junctions and base zones of a plurality of transistors on a common substrate. In this case the material between the surface zones is doped only with the impurity dominant in those zones and the surface of the layer is coveted with oxide before or during annealing. If the semiconductor is silicon the zones are preferably doped with phosphorus to N type, the minor impurity being boron or aluminium but when germanium is used P-type zones are employed.
Patent GB-409671-A (GB)
Title: Improvements in and relating to centrifugal extracting or drying apparatus
IPC: D06F49/00
Filed: 1932-11-01
Abstract: 409,671. Centrifugal extractors. PERKS, T. E., c/o Still & Son, Charles Street, Hatton Garden, London. Nov. 1, 1932, No. 30757. [Class 23.] A centrifugal extractor has a perforated drum 3 in a casing 1 with a cover 4 interlocked with the driving and braking mechanisms so that the driving motor 5 cannot be started while the cover is raised. The machine is particularly for use in association with the dry cleaning apparatus described in Specifications 347,896, [Group III], and 374,976. The solvent removed from the material under treatment passes from the casing 1, through the pipe 9, to the tank 10 from which it is forced by the pump 11 through the pipe 16 to a suitable container. The drum spindle 2 carries a brake disc 17 with which are associated brake elements 18 actuated by a lever 19 provided with a pedal 20. A vertical rod 21 is connected to the lever 19, and this rod actuates the starting switch 22 for the electric motor 5 and also, in its upper position, enters a slot 23 in a lug 24 adjacent the hinge of the cover 4. The entry of the rod into the slot can only be effected when the cover is closed. When the lever 19 is locked in the plate 28 in its lower position, the brake is on, the motor circuit is broken, and the cover can be raised. If the brake lever be released while the cover is raised the rod 21 is prevented from rising to close the starting switch. When the cover is closed, however, the rod 21 is able to enter the slot 23 so that the rod and lever 19 are lifted by the spring 26. This movement releases the brake and locks the cover, and subsequently closes the starting switch.
Patent GB-799842-A (GB)
Title: Improvements in or relating to deferred action primary electric batteries
IPC: H01M6/30
Filed: 1956-10-09
Abstract: 799,842. Primary batteries. SOC. DES ACCUMULATEURS FIXES & DE TRACTION. Oct. 9, 1956 [Oct. 10, 1955], No. 30763/56. Class 53. A deferred-action primary battery comprises positive sheet electrodes 2, negative sheet electrodes 3, absorbent sheet separators 4 and a tube 6 having apertures 10 through which the electrolyte passes to soak the sheets when the battery is primed. The tube 6 is plugged at one end and connected at the other to a source of electrolyte under pressure. A nut is threaded on the tube to compress the stack of electrodes and separators. The cells of the battery are separated by diaphragms 1, e.g. of polyvinyl chloride impregnated with silicone oil. The cells are shown connected in series by the metal strips 5. Alternatively, the strips may be used to connect the cells in parallel, Fig. 5 (not shown). A single tube 6 may be used to prime two separate batteries. Suitable electrode materials and electrolytes are stated to be nickel oxide and zinc with potassium hydroxide; cuprous chloride and magnesium with sodium chloride; carbon and zinc with chromic acid.
Patent GB-992042-A (GB)
Title: Improvements in or relating to electromagnetic cores
Inventor: HILL ROWLAND THOMAS
IPC: H01F38/10
Filed: 1962-08-10
Abstract: 992,042. Inductors. GENERAL ELECTRIC CO. Ltd. Aug. 6, 1963 [Aug. 10, 1962], No. 30778/62. Heading H1T. A choke has its coil-carrying (air-gapped) centre limb 1 forming a common part of two magnetic circuits with laminated U-shaped yokes 7, 8. Further laminated members 12, 13 may be provided, the whole being held together by a  casing 10, 11, 17 having locating dimples 22 including side plates 14 as shown and carrying a terminal block 23. Two air-gapped chokes may be formed by coils arranged side-byside on a common centre limb each coil having its own U-shaped yokes and the whole being enclosed in a common casing (Fig. 3, not shown).
Patent GB-396682-A (GB)
Title: Improvements in apparatus or devices for screening or separating materials
IPC: B07B1/16
Filed: 1931-11-06
Abstract: 396,682. Sifting-apparatus; feeding- devices for granular materials. SYMONS BROS. DEVELOPMENT CO., Hollywood, California, U.S.A.-(Assignees of Symons, L. G. ; 1462, Stanley Avenue, Hollywood, California, U.S.A.) Nov. 6, 1931, No. 30783. Convention date, Nov. 24, 1930. 'Void [Published under Sect. 91 of the Acts]. [Classes 59 and 117.] A screen for sifting granular material consists of a series of parallel bars C, Fig. 4, oscillated in bearings B about their longitudinal axis and provided with interpenetrating arms D having fingers D<1> to form the screening apertures. Preferably ridges E, E<1> are provided on the upper side of the arms D and across the bars respectively. The ends of the bars are enlarged and are mounted in rubber blocks B<3>, Fig. 6, secured in the bearings B so as to rock about the ball C<3> substantially in line with the normal upper surface of the screen. The rocking means comprise arms G<6> connected resiliently through a rubber sleeve G<4> to a reciprocating channel bar G which is driven by an eccentric rod connected to lugs H through the resilient connection H<4>. Side plates E<3> preferably of flexible material are adjustably secured by brackets E<4> to the base frame A. The material is fed to the head of the machine from a hopper K<1>, Fig. 2, having a curved feed-plate K covered with a flexible strip K<7> extending on to the screen. The horizontal regulating plate K<2> has an arcuate edge and is adjustably secured to a bracket K<5>.
Patent GB-446668-A (GB)
Title: Improvements in or relating to spring units for seats, mattresses and the like, and method of making the same
IPC: A47C7/24
Filed: 1934-10-27
Abstract: A resilient filling - unit for cushions or mattresses consists of a convoluted sheet of rubber reinforced by strands of resilient wire or a rubber coated wire netting preferably woven.  The Specification as open to inspection under Sect. 91 comprises also the use of sheet material wherein the wires are unvenly spaced or are intermeshed with transverse strands of fibrous material or of non-resilient wire, or are graduated in thickness to provide greater rigidity where desired or wherein crimped wire or chain link meshwork is used.  Means for applying the rubber by coating, with the simultaneous application of a paper or fibrous backing, and by dipping with subsequent drying and curing were described and to produce an effective bond the use of brasscoated wire was specified.  This subject-matter does not appear in the Specification as accepted.
Patent GB-811595-A (GB)
Title: Improvements in or relating to dispensing spouts for containers
Inventor: WINGFIELD LEONARD EDMEADS
IPC: B65D8/02
Filed: 1956-10-10
Abstract: 811,595. Spouts for containers. METAL BOX CO. Ltd. Sept. 25, 1957 [Oct. 10, 1956], No. 30920/56. Class 66. A dispensing spout, preferably of plastic material, having in its base 1 an opening 2 from which a lip 4 extends upwards and outwards, the base 1 overlying the top 8 of a container on which it rotates so opening or closing an opening 13 therein, is characterized by a spigot 9 offset from the opening 2 and extending up through a hole in the container top, the spigot 9 having a lateral protuberance 10 spaced from the base 1 and co-operating therewith to keep the spout in position on the container. The spigot 9 is so placed relative to the container that the lip 4 extends beyond the edge 14 of the container top when the openings 2 and 13 are aligned.
Patent GB-460325-A (GB)
Title: Improvements in and relating to belt gearing
IPC: F16H7/14
Filed: 1935-11-08
Abstract: 460,325. Tensioning arrangements for belt gearing. WEARNS AUTO-FLEX DRIVES, Ltd., and PILKINGTON, D. K. Nov. 8, 1935, No. 30959. [Class 80 (i)] A loose sleeve 1 on a line-shaft 4 carries depending arms 2, 3, which rotatably support the shaft 25 of a pulley 27. The sleeve 1 also carries at each end casings 9, 10 for enclosing the gearing 28, 21 which transmits power between the shaft 4, and the shaft 25. Removable end-plates 11 may be provided to permit changing of the gears 21, 28 to vary the transmission ratio. Caps 13 with lubricant filling-openings 14 may also be provided. As shown, the casings 9, 10 are bolted to flanges 7, 8 on the sleeve 1.
Patent GB-486648-A (GB)
Title: Improvements in machines incorporating gill-bars for drawing flax, wool and other fibres for forming slivers or yarn
IPC: D01H5/10
Filed: 1937-11-11
Abstract: 486,648. Rollers for gill drawing- frames. GILLESPIE, J., and SIMPSON, G. Nov. 11, 1937, No. 30989. [Class 120 (ii)] In a gill drawing-frame of the pushbar type the front or drawing roller A is provided with a bearing F, Fig. 3, at or about the middle of its length in addition to the usual end bearings a, al so that it may be made of smaller diameter and thereby shorten the distance between the descending gill pins c, Fig. 1, and the nip D of the rollers A, B. The central bearing is preferably of a ball or roller type and the roller A is formed in two parts screwed together at G. If desired two or more intermediate bearings may be provided.
Patent GB-154577-A (GB)
Title: Improvements in machines for cutting non-circular glasses
IPC: C03B33/04
Filed: 1920-11-03
Abstract: 154,577. Zeiss, C., [Firm of]. Nov. 21, 1919, [Convention date]. Cutting glass.-Relates to machines, having rotary tables, for cutting non-circular glasses, particularly spectacle lenses, and consists in replacing the templet usually employed by an adjustable cutter which is given a reciprocating movement bv means of a two-armed lever having an adjustable fulcrum and rocked by an interchangeable grooved cam shaped in accordance with the curve required. By moving the fulcrum to the end of the lever, circular glasses can be cut without removing the cam member. Mounted in a sleeve f carried by a casing a is a bevel wheel d, the boss d<1> of which is connected by a pin e and a slot b<2> to a shaft b<1> so that the latter can slide in and turn with the boss d<1>. Carried by the shaft b<1> is a table b on which is supported a rubber cushion c bearing the glass z to be cut. Normally, the shaft b<1> is retained in the lowered position by a spring b<3> against which it is lifted by a hand lever g to bring the glass into contact with the cutter t. The cutter is carried by a slide s moving in a bracket m mounted on an upward extension a<2> of a laterally projecting part a<1> of the casing in which is mounted a driving bevel wheel h engaging the wheel d. Mounted on the spindle h<1> of the wheel h, and caused to rotate therewith by a spring tongue l, is an interchangeable sleeve k in which is formed a cam-groove k<1> shaped to correspond with the curve to be cut. Adapted to be reciprocated by the cam-groove is a rod p connected with the slide s by a ,screw p<3> and with the cam-groove by a lever o. the pivot pins q<1> of which move in slots a<3> in the extension a<2> and are carried by a spherical member q sliding on the lever. The pins q<1> also engage in helical grooves r<1> formed in a sleeve r surrounding the extension a<2>, the position of which thus governs the amount of movement imparted by the cam groove to the cutter t. Preliminary adjustment of the slide s and cutter t is effected through the screw p<3> by rotating a milled head p<2> carried by the rod p, rotation of the slide s being prevented by the engagement of the cutter t in a slot m<3> formed in the bracket m. Also carried by the. bracket m is a spring-depressed pin u having at its lower end a rubber ring v<1> which serves to clamp the work in position when the table b is raised. A spring-supported centring-pin b<5> is mounted in the shaft b<1>, and the operating handle i is secured to the screwed end of the spindle h<1>.
Patent GB-1390085-A (GB)
Title: Rotary positive displacement machines
IPC: F03C2/30
Filed: 1972-07-03
Abstract: 1390085 Rotary positive-displacement machines B ZIMMERN 3 July 1972 [30 July 1971] 31069/72 Heading F1F A rotary positive displacement machine of the worm and worm-wheel type comprises a worm wheel or pinion 5 which has the face thereof facing the fluid pressure covered by a plastics liner 9 connected thereto by a plug 10 in pinion 5 extending into a bore in the liner 9. The teeth 5a of the metal pinion are narrower than the distance between adjacent threads 14a, 14b on the worm or rotor, while the tooth parts 9a of the liner 9 overlying teeth 5a engage the threads 14a, 14b. Relative movement between the liner teeth 9a and pinion teeth 5a can take place either through the inherent flexibility of liner 9 or by ensuring that plug 10 enters the liner bore with clearance. The arrangement is such that the pinion teeth 5a cannot touch threads 14a, 14b. The plug may have a resilient ring which acts between the plug and bore walls of the liner to restore the liner to its normal position after deflection relative to the pinion, Fig.5 (not shown). The pinion may have teeth arranged in a cylindrical array to present surfaces to the high pressure which lie on a common cylindrical surface, Figs.6 to 8 (not shown). The teeth parts of the liner may have parts cut away to improve flexibility, Figs.9 and 10 (not shown). The plastics material employed for the liner 9 can be any of those sold under the trademarks "Rilsan", "Celoron", "Synthane", or "Ferrobestos".
Patent GB-427783-A (GB)
Title: Improvements relating to apparatus for the manufacture of moulded articles such as tiles
IPC: B28B13/06
Filed: 1934-10-30
Abstract: 427,783. Delivering tiles from moulding-machines. O'SULLIVAN, E., Hillview, Hilltop Road, Whyteleaf, Surrey. Oct. 30, 1934, No. 31120. [Class 87 (ii)] In apparatus for removing moulded articles such as tiles from the pallets or plates on which they are formed, each pallet and its tile is carried under the influence of means adapted to displace the pallet laterally with respect to its direction of movement, and means are provided which act on the tile to prevent it being carried laterally by the pallet. The tiles 3 supported on pallets 2 are carried by a conveyer 1 between converging guides 7, and past a striker plate 4 which is reciprocated to impart a sharp blow or blows to each pallet to loosen it from the tile and to move it laterally for a short distance, lateral movement of the tile being prevented by a guide 5 spaced above the conveyer. The further lateral movement of the pallet is effected by a diagonal guide 6 which passes beneath the tile guide 5. The striker plate 4 is suspended from an overhead frame 8 by links 9 and is urged towards the pallets by gravity or by a spring 10, the links 9 being swung away from the pallets and allowed to fall back, by cams on a shaft driven from a belt 12. Anti-friction rollers 13 may be provided on the guides 7 and the guide 5. The apparatus may be used in conjunction with the tilemaking machine described in Specification 414,896.
Patent GB-646815-A (GB)
Title: Cellular rubber articles and method for making same
IPC: C08J9/06
Filed: 1947-11-24
Abstract: Cellular articles are produced by heating without pressure a vulcanizable mixture of peat with a natural, synthetic, regenerated, or reclaimed rubber, until the mix expands with the formation of cells, and thereafter continuing the heating with application of pressure to vulcanize the mix.  In typical examples, rubber, optionally with reclaimed rubber, is mixed with peat, zinc oxide, plasticizers, accelerators and sulphur and heated in a mould without pressure at 140 DEG  C. pressure is then applied and the mixture heated to 152 DEG  C. for seven minutes to complete vulcanization.
Patent GB-433407-A (GB)
Title: Caliper
IPC: B23Q17/22
Filed: 1934-05-22
Abstract: 433,407. Linear dimension gauges. STORM MANUFACTURING CO., Inc., 406, 6th Avenue South, Minneapolis, Minnesota, U.S.A. May 22, 1934, No. 31232. Convention date, Nov. 20, 1933. Divided out of 420,278. [Class 106 (ii)] A calliper for association with a cutter head comprises a frame carrying an axially adjustable spindle, graduated co-operating members for adjusting the spindle, means for connecting the frame to the cutter head at its axis, and other means for holding the frame in a predetermined relation to the cutter. The frame is provided with a stud 61 which takes into a central hole in the bottom plate 22 of the cutter head. Two arms 65 extend from the frame partly around the cutter head one on either side of the sleeve 58 and are provided with sockets containing spring pressed balls 62 adapted to enter notches on the cutter head. The device is engaged with the head by the stud 61 in the position shown in dotted lines with the balls 62 at notches 67. It is then swung into the full position with the balls engaging notches 68 when the barrel 55 is located radially with respect to the cutter head and the anvil 56 may be adjusted by the usual thimble 57. Specification 420,278 is referred to.
Patent GB-870555-A (GB)
Title: Improvements in optical goniometers
Inventor: TERPSTRA PIETER
IPC: G01C1/02
Filed: 1957-10-08
Abstract: 870,555. optical goniometers. NEDERLANDSCHE INSTRUMENTEN COMPAGNIE NEDINSCO N. V. Oct. 8, 1957, No. 31472/57. Class 97(1) A two-circle optical goniometer for the measurement of angles between the faces of a crystal comprises a goniometer head on which a crystal holder is secured by means of apparatus permitting rotation about two mutually perpendicular axes both perpendicular to the axis of the goniometer head, a flat mirror being mounted in a stationary manner with respect to the crystal holder and parallel to one of the two said axes, the mirror providing a reference direction in respect of which a definite orientation of the crystal in the holder may be performed. As shown the crystal is mounted on a pin 10 carried by a slide 8 carried by a member 27 rotatable on a member 28 itself rotatable about a perpendicular axis on a holder 2 rotatable about an axis perpendicular to the other two axes. Rotatable about the same axis as the member 28 is a casing 3 containing a target 17 illuminated by a lamp 30 by way of mirrors 32, 33 and lens 22. An image of the target is framed by a lens 18 at the crystal and when a face of the crystal is suitably oriented light reflected thereby forms an image of the target at the cross wires 20 of a telescopic system 5, 21. The angular positions of the casing 3 and holder 2 at which such coincidence occurs are indicated on scales 25, 12 respectively both seen in an eyepiece 7 by means of the optical systems shown. For certain X-ray measurements a selected direction in the crystal must be placed exactly parallel to the axis of the holder 2. To effect this operation the angles of the faces of the crystal are first measured by means of the rotatable scales 12, 25. From these readings are calculated the settings of the scales 22, 25 which will ensure that the flat mirror 9 secured to the slide 8 shall reflect an image coincident with the cross wires 20 when the required crystal direction is parallel to the rotational axes of the holder 2. The holder 2 and casing 3 are then rotated until these values are set on the scales 12 and 25 and the mirror 9 and pin 10 are adjusted by rotation of the members 27, 28 until the mirror produces such coincidence. In this position therefore the desired crystal axis is parallel to the axis of holder 2 and the entire holder may be removed for insertion in an X-ray apparatus.