baber/WOPTO huggingface dataset:
Patent GB-702361-A (GB)
Title: Improvements in and relating to dividers
IPC: G01B3/16
Filed: 1952-01-04
Abstract: 702,361. Tools for setting out work. BENKOE, I. Aug. 18, 1952 [Jan. 4, 1952], No. 312/52. Class 61. A tool for locating and marking centres consists of a pair of dividers one point of which comprises a centre punch which is pre-set to lie perpendicular to the surface to be marked. The centre punch 13 is carried by a graduated segment 14 pivoted at 15 to the leg 12 of the dividers. The segment is locked in adjusted position by a nut 17 on a screw carried by the leg 12 and passing through a slot 16 in the segment. Graduations 19 which co-operate with an index mark 20 on the leg 12 allow presetting of the punch to correspond with the adjusted dimension of the dividers. Specification 685,106 is referred to.
Patent GB-1058406-A (GB)
Title: Process for the preparation of fluorinated aromatic compounds
Inventor: FULLER GEORGE
IPC: C07C17/20
Filed: 1965-01-04
Abstract: The invention comprises 2,3,5,6-tetrafluorochlorobenzene (I) and a method for preparing chlorofluorobenzenes in general, by reacting the corresponding bromo- or iodo-fluorobenzenes with cuprous chloride in a polar aprotic solvent. Examples describe the preparation of (a) C6F5-C6F5, C6F5H and C6F5Cl from C6F5Br; (b) I and p-C6F4Cl2 (II) from p-C6F4Br2 and (c) o-C6F4Cl2 from o-C6F4Br2.  Hydrogenation (Pd) of II gave p-C6F4H2 and I.
Patent GB-842019-A (GB)
Title: Improvements in or relating to diaphragm valves
IPC: F16K7/16
Filed: 1957-01-04
Abstract: 842,019. Manually-actuated valves. ROSS & CO., Ltd., R. L., and PEARSON, M. R. Nov. 19, 1957 [Jan. 4, 1957], No. 387/57. Class 135. A diaphragm valve, having a housing with an inlet port 11 and an outlet port 12 and a diaphragm 19 which is movable to open or close the valve, is characterized in that the diaphragm is secured between the housing and the valve cover in the region of its outer edge and is secured to a valve-operating member 17 by an upstanding annular rib 20, having an inturned upper edge, centrally disposed on said daphragm and formed to be a press fit over a co-operating head on the operating member. A threaded shank of the operating member 17 engages a similarly-threaded sleeve 24 of a hand wheel 18 rotatably mounted in the valve cover, and a pin 23 passes through the head of the operating member to hold a cover 22 in place over the annular rib and to engage a vertical groove in the valve cover to prevent rotation of the operating member.
Patent GB-845242-A (GB)
Title: Improved means for forming integral finned metal tubing
Inventor: LABAN WILLIAM HENRY
IPC: B21C37/20
Filed: 1958-01-06
Abstract: 845,242. Rolling ribbed tubes. ACCLES & POLLOCK Ltd. Dec. 29, 1958 [Jan. 6, 1958], No. 402/58. Class 83 (4). Means for forming an integral external fin or rib on a metal tube by displacement of the metal of the tube comprises at least one freely mounted roll or disc rotated by the rotation of the tube to rib 16 is formed on a steel tube 3 by three roller and disc assemblies mounted on shafts 2 spaced equiangularly about and movable radially towards the tube. Each assembly comprises a roller 4 having integral annuli 5, discs 7 having annuli 11 and freely rotatable discs 12 having annuli 14, the discs 12 being loosely mounted on a spacer ring 8 and having a clearance between each pair of adjacent discs. The discs 7 are clamped to the part 4 between a flange 10 on the shaft 2 and the spacer ring 8 by a nut 9. Alternatively a single solid initial forming roller may replace the part 4 and the discs 7. The parallel-sided annuli 5 and 11 initially form the rib 16 on the tube, when the height of the rib is relatively small. The wedge-shaped annuli 14 of the freely rotating discs 12 then engage the fin and complete the formation, the tips of the annuli having a clearance from the tube wall, while the fin tip is clear of the root of the annuli, thus avoiding a tendency for the tube to lengthen and fracture the discs or damage the fin. The roller 4 and discs 7 are positively driven while the discs 12 are rotated slightly faster by the tube itself, slip between the fin and annuli 14 thus being minimized so preventing tearing of the thin fin. In forming a helical fin the shafts 2 are slightly inclined and the tube 3 is advanced axially during formation of the fin. The freely rotating discs 12 of each assembly may be mounted on a separate shaft in alignment with the shaft 2 for independent traverse towards the tube. In a modification some of the freely rotating discs may have annuli provided with shoulders 21, Fig. 4, which apply a pressure to the fin in a direction substantially radial of the tube 3.
Patent GB-830502-A (GB)
Title: Improvements relating to zig-zag sewing machines
IPC: D05B69/34
Filed: 1956-01-19
Abstract: 830,502. Sewing machines. PHOENIXNAHMASCHINEN AKTIENGESELLSCHAFT BAER & REMPEL. Jan. 19, 1956 [Jan. 19, 1955], No. 424/59. Divided out of 830,501. Drawings to Specification. Class 112 The sewing machine described is the same as that described in Specification 830,501 but the claims differ.
Patent GB-1376243-A (GB)
Title: Methods of making electroluminescent semiconductor bodies
IPC: H01L21/22
Filed: 1972-01-05
Abstract: 1376243 Electroluminescence WESTERN ELECTRIC CO Inc 5 Jan 1972 [28 Oct 1971] 451/72 Heading C4S [Also in Division H1] An electroluminescent device is produced by diffusing Zn into an N type GaP body from an atmosphere containing, but not saturated with, zinc and phosphorus. The diffusion is effected in a cooled chamber. Elemental zinc and phosphorus may be present in the diffusion atmosphere, but preferably the atmosphere is obtained by the total evaporation of a charge of ZnP 2  inserted into the chamber. The chamber may be evacuated or may contain hydrogen, the latter being particularly applicable to cases where red emission is to be suppressed since hydrogen combines with the oxygen which might otherwise give rise to red emission. In one embodiment, however, red emission is required and the Zn diffusion takes place into a solution-grown epitaxial layer of N type GaP doped with tellurium and oxygen on a Czochralski-grown GaP substrate. Red emission is enhanced by heating the diffused body to above about 400‹ C. in a zinc-free atmosphere. During the diffusion process the phosphorus partial pressure is preferably greater than the equilibrium pressure of phosphorus over gallium phosphide.
Patent GB-248524-A (GB)
Title: Improvements in theodolites and the like
IPC: G01C1/02
Filed: 1925-01-07
Abstract: 248,524. Cooke, L. H., and Watts & Son, Ltd., E. R. Jan. 7, 1925. Theodolites. - An adjusting-device for centring a theodolite, tacheometer &c., comprises parts, disposed between the angle-measuring portion of the instrument and the levelling-screws, allowing of two independent motions, one motion, which provides a preliminary freehand adjustment, allowing of free movement of a member in a horizontal plane and rotation of the member into any desired azimuthal direction, while the other motion provides a straight line movement of the azimuth axis in guides carried by the said member. In the form shown the theodolite 1 is carried by a centre 2 in a socket 3 having extensions forming a plate 4 which can slide on, and is guided by, a plate 5. The plate 5 is free to move over the centring-table 6 supported by the levelling-serews 7, and has a downward extension 8 provided with a clamping-nut 9. The plate 4 has a projection 11 receiving one end of an adjusting-screw 12 which passes through internally threaded sleeve 13 which can slide through its bearing on the plate 5 for rapid adjustment of the plate 4, and can be fixed by a clamp 15 to permit fine adjustment of the plate 4 by the screw 12. The plate 4 can be clamped by a ring 16 threaded on to the socket 3 and adapted to engage a turned-over extension of the plate 5. The theodolite carries coaxially with the azimuth centre a boss 17 receiving a quick-pitch screw 18 bearing a centring-thorn 20 which can thus be rapidly moved up so as almost to touch the plumb-bob 22. The thorn is surrounded by a tube 21 which also acts to damp the oscillations of the plumbbob. To facilitate adjustment the telescope is provided with a translucent screen 24 illuminated from behind, and the points are viewed through a lens 23 so as to appear as silhouettes on the screen. Coarse angular adjustment in azimuth is effected by rotating the plate 5, and subsequent rectilinear adjustment is obtained by displacing the plate 4 across the plate 5. In a modification, two adjusting screws are provided for the plate 4, one being disposed at each end of the plate. Specification 5789/05 is referred to.
Patent GB-678390-A (GB)
Title: Improvements in or relating to agricultural vehicles
IPC: B62D63/06
Filed: 1950-01-09
Abstract: 678,390. Platform vehicles. DICKINSON, W. C. Jan. 8, 1951 [Jan. 9, 1950; Feb. 17, 1950], Nos. 485/50 and 4060/50. Class 108(i) An agricultural platform vehicle comprises a number of longitudinal members 14 preferably of channel section and a number of transverse members 15 of smaller channel section which pass through apertures cut in the webs of the members 14 the members being subsequently welded to form a rigid structure surrounded by edge members 16, 17, 18 and 19 preferably of T-section. To the underside of this structure are secured further transverse members 23, 24, 36, 37 which form supports for depending posts 21, 22, 32, 33 carrying the road wheels on stub axles. The front undercarriage is rotatable for steering purposes and the tow bar 54 is pivoted between plates 56, 57 to take side thrusts during steering.
Patent GB-897348-A (GB)
Title: Improved circuit for phase shifting
IPC: H03H11/20
Filed: 1960-01-06
Abstract: 897,348. Phase-shifting. VYZKUMNY USTAV OBRABECICH STROJU A OBRABENI, PRAHA. Jan. 6, 1960 [Jan. 20, 1959], No. 495/60. Class 38 (2). A phase-shifting circuit in which the phase angle # of an output voltage E is dependent on the amplitude of a signal voltage E0 provides three voltages E1, E2, E3 which are vectorially added to give the voltage E. The voltage E1 is a reference voltage derived from a potential divider R7 and P across the input supply. The voltage E2 is derived across resistors R3, R4 from a voltage obtained from a transformer TR1 and dependent on E0 but controlled by a circuit including a transformer TR2 so as to be independent of a phase reversal of E0. The voltage E3, also dependent on the amplitude of E0 is derived from a circuit C1, R1, C2, R2, to be in quadrature with E2, and the voltages E1, E2, E3 are series-connected to provide the output voltage E. As shown, this voltage is applied to the grid of a cathode-follower valve.
Patent GB-1497781-A (GB)
Title: Glass optical fibre joints
IPC: G02B6/38
Filed: 1976-01-08
Abstract: A jointing sleeve (14) is caused to collapse by heating over one (10) of the fibres to be connected. The second fibre (11) to be connected is subsequently inserted into the open end of the sleeve and mounted there by means of a bonding agent (19) whose index of refraction is matched to that of the fibre. This mode of procedure enables the space between the fibre ends to be filled up with a medium whose index of refraction is matched to that of the fibres, and this dispenses with flat grinding of the fibre ends. <IMAGE>
Patent GB-250320-A (GB)
Title: Improvements in or relating to apparatus for forming dovetail grooves or slots in wood or other material
IPC: B27F1/04
Filed: 1925-01-08
Abstract: 250,320. Pantin, H., and Vincent, C. F., (trading as Pantin, W. & C.), and Ingold, E. A. Jan. 8, 1925. Dovetailing.-Dovetail grooves in wood blocks or the like are cut by passing the blocks over pairs of inclined cutters A, B, A<1>, B<1>, which make two inclined cuts, and then, if desired, over wobbling or clearing cutters A<2>, B<2>, to clear out the groove. The inclined cutters are adjustable, and their driving pulleys D are coned. The cutters A<2>, B<2> are mounted on a common spindle, which is adjustable vertically. The blocks are held in a frame G and pressed down by springs G<5> against runners F along which the frame is slid by means of a handle G<4> until the blades have passed over the end of the runners, when they fall down. Alternatively, the blocks may be fed continuously. Longitudinal or transverse grooves are cut in the blocks, by arranging them appropriately in the frame.
Patent GB-156664-A (GB)
Title: Improved means for regulating the terminal voltage of electrical valve tubes
IPC: H05B41/22
Filed: 1921-01-06
Abstract: 156,664. Schr÷ter, F. Sept. 1, 1919, [Convention date]. Vacuum tubes.-A discharge tube for use as a coupling between high and low potential mains is arranged so that a definite fall in potential is produced in the tube by means of one or more grids or screens 3 interposed between an anode 1 and a cathode 2, and screening substantially the whole surface of the cathode. The grid may be insulated from the other electrodes, or connected with one electrode through a resistance. The fall of potential in the tube is stated. to depend on the position, cross-section, and penetrability of the grid. The cathode may consist of a plate of iron or nickel, or a film containing an alkali metal. The tube may contain helium.
Patent GB-1435842-A (GB)
Title: Photographic processing apparatus
IPC: G03D13/04
Filed: 1974-01-07
Abstract: 1435842 Photographic processing apparatus MONRICK HOLDINGS Ltd 7 Jan 1974 [12 Feb 1973] 00657/74 Heading G2X A carrier in which photographic sheet material may be processed comprises a hollow drum 12 having end caps 14 for retaining processing liquid therein and a plurality of spaced retaining rods 20 longitudinally disposed parallelly along the inner surface (18) of drum 12. The rods have a main body portion (22) of convex curvilinear crosssection and at least one flange (26) inter-connecting portion (22) with the drum surface 18 to space the portion a predetermined distance from the surface. The rods are spaced apart around the inner surface (18) so that a photographic sheet 40 is receivable between a pair of adjacent sheets. In use the drum is rotated to circulate the processing liquid therein, cams 16 being used to cause oscillation. As shown more than one sheet 40 may be carried at once.
Patent GB-554802-A (GB)
Title: Improvements in seats
IPC: B60N2/54
Filed: 1942-01-16
Abstract: 554,802. Seats. HICKMAN PNEUMATIC SEAT CO., Inc. Jan. 16, 1942, No. 678. Convention date, Jan. 6, 1941. [Classes 52 (i), 52 (ii) and 52 (iv)] A resiliently mounted seat more particularly for use on motor vehicles comprises a fixed frame 15, Figs. 2 and 5 in which is mounted a seat guided vertically by yokes 75, 75a comprising rods passing through the back of the frame having short arms 77, 77a connected to the back of the seat frame helical springs 24 being mounted between the bottom frame 50 of the seat and the fixed frame. The cross rods of the yokes 75, 75a pass through rubber bushed bearings 80 and the arms 77, 77a carry eyes 90, 90a having rubber bushes for pins on the chair-frame. The springs 24 are mounted between cross plates 65, 22 fixed to the seat and base frames respectively, displacement being prevented by flanges and retaining lugs on the plates. The seat is provided with a removable inserted cushion and comprises a plywood plate 105 on which rest a number of upholstery springs 106 over which is a layer of burlap 107 and felted cotton 108 on which is placed a layer of spanish moss the whole being covered with leather or leatheroid. The back cushion is of similar construction but vented and consequently softer than the seat. The Specification as open to inspection under Sect. 91 comprises also the following : Fig. 11 (Cancelled) shows a construction in which the lower yokes 75a and springs are replaced by torsion rods 128 attached at the free end by eyes 90a to plates attached to the seat frame and mounted at their other ends in round and oval bars 123, 124. Fig. 13 (Cancelled) shows a modification in which the lower yoke and springs are replaced by leaf springs 130. This subject-matter does not appear in the Specification as accepted.
Patent GB-137538-A (GB)
Title: Improvement in pants-presses
IPC: A47G25/72
Filed: 1920-01-08
Abstract: 137,538. Leahey, T. F. Sept. 4, 1913, [Convention date]. Void [Published under Sect. 91 of the Act]. Trouser presses.-A press is made of cardboard or similar material which folds along the lines 4, 5 and it may be also along the lines 7, 8 for compact storage. Clips 9 slide on buttons or rivets and have bent embracing portions 12,
Patent GB-912885-A (GB)
Title: Hydraulic braking mechanism for vehicles
Inventor: JENKINSON ROBERT ARTHUR
IPC: B60T8/74
Filed: 1960-01-08
Abstract: 912,885. Hydraulic brakes. LUCAS (INDUSTRIES) Ltd., JOSEPH. Jan. 9, 1961 [Jan. 8, 1960], No. 708/60. Class 103 (1). In a vehicle hydraulic master cylinder braking system at least one pair of brakes is associated with a centrifugally-operable means rotatable with a wheel which is adapted to actuate a piston or the like, introduced in the hydraulic supply line between the master cylinder and a wheel brake cylinder, to reduce the overall volume of the supply line when a vehicle wheel is rotating normally but to increase the volume of the hydraulic supply line when the wheel locks to reduce the hydraulic pressure. The centrifugally-operable means comprises a ball-and-ramp mechanism 13, 11 associated with each brake drum 8 such that when the wheel and its brake drum 8 are rotating the balls 13 are moved radially outwards by centrifugal forces and an annular member 12 is moved axially outwardly in the recess 10 against its spring. This movement is also imparted through a bell-crank lever 17 to a piston 15 in a cylinder 14 thereby reducing the overall volume of the branch pipe 5 and its associated parts so that the hydraulic fluid will be supplied from the master cylinder 1 to the actuating cylinders 6 in the normal manner to retard the vehicle. However, should locking of a wheel result, the balls 13 move radially outwards under the combined action of the spring and fluid pressure acting on the annular member 12 so that such movement displaces the piston 15 in the expansion cylinder 14 to increase the overall volume of the branch pipe 5 and temporarily reduce the braking force, thereby allowing the wheel to start rotating again.
Patent GB-978837-A (GB)
Title: Improvements in and relating to cylinder liners
Inventor: ROBINSON JAMES EUSTACE
IPC: F02F1/16
Filed: 1962-01-08
Abstract: A cylinder liner of the wet type is protected from corrosion by stretching a resilient nonmetallic material over its outer surface to form a sheath.  The resilient material may be silicone rubber or neoprene and the sheath should be 0.01-0.04 inch thick.
Patent GB-1030702-A (GB)
Title: Electrophotographic material
IPC: G03G5/06
Filed: 1963-01-07
Abstract: 1,030,702. Electrophotography and production of printing plates. KALLE A. G. Jan 7,1963 [Jan 13,1962],No. 739/63. Headings G2H and G2M. [Also in Division H1] An electrophotographic material has an electrically conductive support bearing a photo conductive coating containing a 3:3-bis-(aminophenyl)- phthalide with or without a resin binder. Supports include metal foils and laminates, cellulose products, and plastics. The materials may be given either a positive or a negative charge and exposed episcopically or diasiopically and, when the support is translucent, by a reflex process. Normal wet, or dry, or magnetic carrier-tones development may be be used and the image fixed by heat or solvent vapour. When the support is transparent the developed material may be used as a master for further copies. The developed material may be converted to an offset printing plate by a solvent such as alcohol, asetic acid, or aqueous sodium hydroxide. Particular solvent mixtures are A) 40% methanol, 10% glycerine, 45% glycol, and 5% sodium silicote; B) 45% methanol, 5% glycerine, 20% glycol, 25% ethylene glycol monomethyl ether, and 5% of 85% phosphoric acid. After rinsing with water the plate is inked with greasy ink.
Patent GB-381798-A (GB)
Title: Improvements relating to draught excluding devices for attachment to door bottoms
IPC: E06B7/23
Filed: 1932-01-11
Abstract: 381,798. Draught excluders for doors. NORMAN, P. W., 33, Cedar Road, Sutton, Surrey. Jan. 11, 1932, No. 808. [Class 20 (iii).] A draught excluder for the bottom edge of doors comprises a strip of wood tipped or covered with felt and held in position by a rubber band passing round it and beneath the door and secured to the opposite face at 4. The excluder may have an additional support at the adjacent face of the door when the door opens over steps.
Patent GB-468788-A (GB)
Title: Improvements in electromagnetic wave receiving circuit control devices
IPC: H03G3/02
Filed: 1936-01-10
Abstract: 468,788. Valve circuits for wireless reception. COVE, V. H., and FLYN, B. Jan. 10, 1936, No. 836. Drawings to Specification. [Class 40 (v)] A manual volume control for a radio receiver or amplifier comprises means for varying the voltage across the primary of the power supply transformer providing anode and heater currents &c.
Patent GB-101165-A (GB)
Title: Improvements in the Manufacture of Curry Combs.
Inventor: TILDESLEY WILLIAM HENRY
IPC: A01K13/00
Filed: 1916-01-19
Abstract: 101,165. Tildesley, W. H. Jan. 19, 1916. Currycombs.-The knockers are formed by bending back on themselves tongues 1 projecting from the ends of one or more of the channel-section bars 2, which may be the toothed bars. The tongue may be recessed as shown in Fig. 3, in which case a space 6 is formed. The space may be filled by a strengthening-piece 11, Fig. 8. In modifications, the tongue is bent upwards and riveted as shown in Fig. 5, or is flat, bent downwards and riveted as shown in Fig. 6, or is bent so as to enclose a strengthening-strip 11, Fig. 10. The end parts of the loops 12, Fig. 12, for the back strap, when such strap is used, may be formed with shoulders 14 and serve as rivets to secure the channel-bars 2 to the back-plate 8. They may also secure the turned-over parts 7 of the tongues 1.
Patent GB-660037-A (GB)
Title: Improvements in and relating to the singeing of pig-carcasses
IPC: A22B5/08
Filed: 1949-01-12
Abstract: 660,037. Pig-singeing furnaces. GAMST, O. Jan. 12, 1949 [Jan. 12, 1948], No. 877/49. Class 51 (ii). A pig-singeing furnace is provided with an oven chamber heated by incandescent bodies, there being no open flame within the oven chamber. In one embodiment of the invention heat is radiated by an oven lining, on the outside of which electric heating elements 3 protected by a heat-insulating covering 4 are arranged. The carcass is suspended by hooks 8 on a tube 6 within the oven chamber 2 which is circular in cross-section. A vapour chamber 10 having vapour outlets is provided. The oven lining may alternatively be heated from the outside by an open flame. In an alternative embodiment, the pig carcasses are conveyed through the oven continuously and are automatically turned for uniform singeing. In the Specification as open to inspection under Sect. 91, a tunnel oven in which heating elements are arranged in channels in the walls of the oven is described. This subject-matter does not appear in the Specification as accepted.