baber/WOPTO huggingface dataset:
Patent GB-1033116-A (GB)
Title: Improvements in or relating to drive means for dental handpieces
Inventor: KILLICK HERBERT PERCY
IPC: A61C1/05
Filed: 1964-07-06
Abstract: 1,033,116. Swash plate engines. DENTAL MANUFACTURING CO., Ltd. April 26, 1965 [July 6, 1964], No. 27831/64. Heading F1S. [Also in Division A5] The drive unit for a dental handpiece comprises a fluid operated motor of the fixed angle swash plate type. The output or drive shaft of the motor has means, for example a clutch device which may be associated with resilient locking means, whereby the shaft may be drivingly coupled to or disengaged from the driven shaft of the dental handpiece. Valve means may be associated with the output shaft for controlling the flow of motive and exhaust fluid to and from the motor. In the illustrated embodiment (not shown), the output shaft is coaxial with a stationary sleeve which has two apertures arranged along its length, one allowing for ingress of motive fluid and the other for egress of exhaust fluid. Within the sleeve and rotatable with the output shaft is a valve member incorporating spaced annular grooves adapted to register one with each of the apertures in the sleeve, each groove also being in communication via a separate bore in the valve member and further ports in the sleeve with passages communicating with the cylinders of the motor. Means may be provided to supply the motive fluid to either of the apertures in the sleeve, exhaust fluid discharging from the other aperture, so that the direction of rotation of the motor may be reversed by interchange of the aperture through which motive fluid is introduced. A regulating device may be provided to control the flow of motive fluid and hence to control the speed at which the output shaft is driven. As described, the motor has six equidistantly angularly disposed cylinders and the motive fluid is air.
Patent GB-324619-A (GB)
Title: Improvements in or relating to electric wiring devices
IPC: H02G3/08
Filed: 1928-09-28
Abstract: 324,619. Edison Swan Electric Co., Ltd., and Rogers, S. Sept. 28, 1928. Junction boxes. - The aperture through which a conductor enters a junction box, conduit angle piece, &c. is formedl so as to enshroud the end of the wooden &c. non-circular casing in which the conductor is laid. A flange B projecting externally from the junction box A surrounds three sides of the conduit and may be reduced in thickness at certain points to enable parts not required to be broken away. When applied to a bend or junction piece the flange may be made smaller or larger than the body of the junction piece as required.
Patent GB-279834-A (GB)
Title: Process and apparatus for the manufacture of gas from heavy oils
IPC: C10B25/14
Filed: 1927-10-20
Abstract: 279,834. Chilowsky, C. Oct. 27, 1926. [Convention date]. Muffle furnaces.-Apparatus for generating oil gas by a process described in Specifiations 183,828, [Class 51 (i), Furnaces and kilns, Combustion apparatus of], 255,423, 271,899, 271,907, [all in Class 55 (ii), Gas manufacture &c.], is combined with a furnace 70, which is supplied through a pipe 15 with the gasefied products from the generator. These are mixed with combustion air from the compressor 69 and burnt after passing through apertures 71, thus heating a muffle 72. Air for the gasefier is heated in a pipe 74 in the path of hot gases leaving the furnace. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modification in which the gasefier is placed in the furnace hearth or built into the furnace, walls, and the oil heating and steam generating tubes 16. 19 are heated by the furnace combustion products. This subject-matter does not appear in the Specification as accepted.
Patent GB-1355554-A (GB)
Title: Turbomachinery bladed rotors
IPC: F01D5/30
Filed: 1971-06-15
Abstract: 1355554 Turbo-machine blade fixing GENERAL ELECTRIC CO 15 June 1971 [25 Sept 1970] 27953/71 Heading FIT To reduce frettage an insert 52 of thin flexible material is disposed between the dovetail root 32 of each turbine, fan or like blade 26 and its mounting slot 38 in rotor disc 24. The inserts may be coated with a lubricating and/or wear resistant material or solution. Mounting slot 38 may extend axially of the rotor, as shown, or circumferentially and in the former case each slot may contain the roots of two blades, the root of a single blade or a root common to more than one blade. A locking strip 48 with enlarged bent up ends 49 may be disposed between the bottom of each root 32 and insert 38. Baffles 36 may be disposed between adjacent blades 26.
Patent GB-435432-A (GB)
Title: Indicating means for radio receiving apparatus
IPC: H03J1/04
Filed: 1934-11-05
Abstract: 435,432. Adjusting wireless apparatus. PEARSON, A. G., 76, Lower Mayer Street, Northwood, Hanley, Stoke-on-Trent. Nov. 5, 1934, No. 27991. [Class 37] A tuning-indicator comprises a disc having a series of perforations, the disc being located between a source of illumination and a chart or map so that when any one station is tuned in, .light shining through the appropriate hole indicates the station, the disc having a scale readable through an aperture in the receiver panel. The chart or map may be opaque and have translucent spots thereon or it may comprise a glass screen. Separate charts for the different wavelength ranges may be employed and these may be masked by shutters or slots operated by the wave-range switch. The map 22 is carried in a frame 10 and the perforated disc 24 is mounted on the tuning spindle 19 together with supports 25, 26, reflector 27 and lamps 29. A band 35 around the disc 24 has wavelength graduations which are exposed in a window 36.
Patent GB-226511-A (GB)
Title: Improvements in or relating to the cylinders of internal combustion engines
IPC: F02F1/36
Filed: 1924-11-22
Abstract: 226,511. Horning, H. Le V., (Assignee of Coverstone, J. F.). Dec. 22, 1923, [Convention date]. Cylinders, combustion chambers of.- The combustion chamber 22 of an engine cylinder, having both inlet t and exhaust valves on the same side, is formed with a detachable head, a flat or tapering recess 24 being formed over the central part of the piston; the chamber 22 is connected to the cylinder by a passage having a cross-sectional area which is equal to that of. the inlet port.
Patent GB-686768-A (GB)
Title: Improvements in or relating to adhesive bonding of polymethylmethacrylate material
IPC: C08J5/12
Filed: 1949-11-02
Abstract: An adhesive bond is formed between polymethylmethacrylate and a rubbery material by bringing these substances together with cyclized natural rubber in between and subjecting the assembly to heat.  The cyclized rubber is preferably obtained by treating rubber with p. phenol sulphonic acid at 150 DEG  C. and then dissolving in benzene. The rubbery material may be natural rubber, neoprene, or a copolymer of butadiene with styrene or isobutylene.  The polymethylmethacrylate may be pretreated by maintaining it at 140 DEG  C. for about 1/2 hour.  In Example I the rubbery material consists of natural rubber, zinc oxide, stearic acid, agerite powder, sulphur, mercaptobenzthiazole, channel black and mineral oil.  Specifications 247,136, [Class 70], and 595,009 are referred to.
Patent GB-214559-A (GB)
Title: Improvements in extracting ingots from moulds
IPC: B22D29/00
Filed: 1923-11-08
Abstract: 214,559. Binks, I. Nov. 8, 1923. Castings, extracting.-Ingots are extracted from their moulds by attaching a cross bar C to a staple cast in the ingot, lifting the bar and ingot mould by an eye D' engaged by a slip hook and dropping the mould into a pit F, the ingot being arrested by contact of the cross-bar with the top of the pit before the mould reaches the bottom.
Patent GB-824222-A (GB)
Title: Improvements in or relating to electric pulse modulating and demodulating circuits
Inventor: CATTERMOLE KENNETH WILLIAM
IPC: H04J3/20
Filed: 1956-09-14
Abstract: 824,222. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. June 7, 1957 [Sept. 14, 1956], No. 28143/56. Divided out of 824,221. Class 40 (4). [Also in Group XL (c)] In a pulse communication system utilizing the reactance store " modems " disclosed in Specification 753,645, [Group XL (c)], it is shown that to reduce cross-talk due to energy stored in the capacitance of the line connecting two " modems," the storage circuit should consist of a resonant circuit wherein #LC = t2/# and C/C<1> = 3/2, where L and C are the components of the resonant circuit, C<1> is the capacitance of the line, and t2 is the pulse duration. As applied to a circuit for switching and pulse amplitude modulating the output of a subscriber's line transformer 1 to a group busbar 9, the incoming signal is passed through a low-pass filter 3, 4, 5 to the resonant storage circuit 6, 7 and is switched by a symmetrical junction transistor 8 under control of sampling pulses applied to a transformer 12. The inductor 7 is common to all subscribers, the remaining components being multiplied as necessary. The sampling pulses from transformer 12 also control a diode switch 21 to modulate the dialling impulses applied to line 23. In a modification, Fig. 9 (not shown), a calling subscriber is switched to a calling group, and the called group is switched to the called subscriber as above, whilst a third symmetrical junction transistor switches the calling group to the called group. Specification 822,297 also is referred to.
Patent GB-244063-A (GB)
Title: Oil pump
IPC: F16N13/04
Filed: 1925-11-09
Abstract: 244,063. Lefebvre, A. Dec. 8, 1924, [Convention date]. Eccentric-actuated pumps; auxiliary actuating- gear; stroke, varying; assembling parts; suction reservoirs; valves, facilitating removal of. - A plunger 2 is actuated by an eccentric 10 and a plunger 8 may be reciprocated by hamd to pump oil or may be rotated to cause rotation of the plunger 2, whereby its stroke is varied. The plunger 2 is connected by a screw 3 and nut 4 to an eccentric strap 5 which may be pivoted at 21 to facilitate removal of the plunger and is slotted to engage the shaft 11 in its normal position. The reduced end of the plunger 8 is a sliding fit in the hollow end of the plunger 2 and has a pin 23 engaging the slot 8. Alternatively, the squared end of the plunger 2 engages a slot in the plunger 8. rotation of which causes the plunger 2 to rotate. The ball valves may be removed with the socket 18 after the pistons have been displaced.
Patent GB-1349724-A (GB)
Title: Variable speed friction drive
IPC: F16H15/26
Filed: 1971-06-16
Abstract: 1349724 Variable-speed friction gear HEIDOLPH-ELEKTRO KG 16 June 1971 [9 July 1970 24 Feb 1971] 28256/71 Heading F2D A continuously variable friction gear comprises a driving cone 11 and a cup-shaped driven member 17 frictionally engaging a spherical idler 15 carried by a support body 16 turnably geared via a spur gear train 19, 20 18 to a bearing support 12 of the driving cone 11, which driving cone 11 is belt driven from a motor 14 jointly carried as a unit on the bearing platform support 12 turnable via the spur gear train to engage different points of contact of the driving cone 11 with the idler sphere 15 and of the idler sphere 15 with the cup-shaped driven member 17 for continuously variable ratio change. The arrangement of Fig. 3 (not shown) is similar to that of Figs. 1 and 2 except that the driving cone is replaced by a driving member of barrelled form fractionally engaging the idler sphere 15.
Patent GB-976245-A (GB)
Title: Improvements relating to time division multiplex systems
Inventor: CASSERLEY DAVID JOHN
IPC: H04J3/04
Filed: 1960-08-16
Abstract: 976,245. Time division multiples systems; diode gating circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 1, 1961 [Aug. 16, 1960], No. 28308/60. Headings H3P and H4L. In a sampling circuit for a time division multiplex system comprising a plurality of AND gates wherein there is a separate gate fed from each channel to be sampled and wherein all the gates are arranged to feed a common output, a timing pulse generator is connected to feed timing pulses to the gates and also to a counter circuit, which is arranged to feed control pulses to the gates in a recurring sequence, so that in operation the gates are opened sequentially for periods during which the timing and control pulses fed to a particular gate coincide. Furthermore, a delay arrangement is incorporated to ensure that control and timing pulses do not start simultaneously, so that the generation of spurious pulses is avoided. The timing pulse generator is controlled by a blocking oscillator and generates pulses alternately on two output lines A and B, the two lines being connected to the gates G1-G6 as indicated, and also through delays 1 and 2 to odd and even stage counters respectively. In the operation of the sampling circuit, a given pulse on the B line, after delay, actuates the odd stage counter to generate a pulse in the counter output 1, which is fed to the gate G1. As this pulse reaches its peak value, a pulse on the A line is applied to the gates G1, G3 and G5, but only the gate G1 will be actuated, since the counter output is also applied to that gate. The A pulse also passes via a delay line to the even counter, so that at the next B pulse the gate G2 will be actuated, and so on. The system eliminates the risk of spurious operation which may occur in multiplex systems working at high speed. Fig. 2 shows a form of diode gate which may be used in the system, a constant current being applied at the terminal CC and normally passing via the diodes D2 and D3. When both control pulses are applied to these diodes, the constant current opposes the input at C1 to control the current output through the diode D4 into the resistor R1, this current varying linearly with the input C1.
Patent GB-464289-A (GB)
Title: Well screen
IPC: E03B3/20
Filed: 1935-10-14
Abstract: 464,289. Filters. JOHNSON, E. E. Oct. 14, 1935, No. 28343. [Class 46] [Also in Group XXI] A well screen is formed by uniformly winding wire 24 helically around a series of rods 20, Figs. 3 and 4, positioned to outline a cylinder, or around longitudinal ribs 22, Fig. 8, on an apertured cylinder 21, the wire and rods or ribs having converging sides meeting at an acute-angled edge and being arranged with said edges sunk one within the other and fused together at each crossing point. In Fig. 3, the projecting ends of the rods enter tubular sockets 27, 28, and are welded thereto through openings 29. In Fig. 11, a drive point 32 has a collar 33 fitting inside the rods 20 and welding metal is applied round and between the rods about the collar; the other ends of the rods are welded at 35 to a collar 34.
Patent GB-1318046-A (GB)
Title: Apparatus for vacuum evaporation
IPC: H01J37/305
Filed: 1970-06-11
Abstract: 1318046 Vacuum evaporation apparatus AGA A B 11 June 1970 [13 June 1969] 28346/70 Heading C7F Vacuum evaporation apparatus includes a vacuum chamber 1, a support 10 for the substance to be evaporated, and a means to direct heat on to only a portion of said substance at any instant, the support 10 being rotatable relative to the heating means to heat different portions of the substance in sequence and the thermal resistivity of the support being such that the temperature of said portions is maintained and an entire annulus of the substance vaporizes simultaneously. A groove 11 may be provided for the substance, and may be longitudinally divided to hold different substances, or more than one groove may be provided; heating is either by a deflected electron beam, as shown, by radiant heat, or by laser beam.
Patent GB-663648-A (GB)
Title: Improvements in or relating to a fluid displacement device
IPC: F04B1/22
Filed: 1948-11-02
Abstract: 663,648. Steam engines. HAUTZENROEDER, R. W. Nov. 2,1948, No. 28408/48. Class 122(iii) [Also in Groups XXVIII and XXIX] A fluid pump or motor comprises a rotor 12 secured to a shaft 10 and having a plurality of cylinders equally spaced on a circle concentric with the rotor and each containing a pair of pistons 15, 16 extending from the ends thereof into engagement with annular swash plates 21, 20 rotatably supported in bearings 19, 18, the cylinders having radial passages 14 extending outwardly therefrom intermediately of the pistons and communicating alternately with low and high pressure liquid cavities 2, 3 respectively in a stator 1, the piston ends engaging the swash plates being of a convex contour whose radius is greater than the piston diameter and the axis of rotation of the swash plates always intersecting the rotor axis X-X in the same plane A-A which joins the centres of radii of the piston ends. The swash plate bearings 18, 19 are carried by stub shafts 24, 25 and the inclination of the swash plates may be varied by a control shaft 30 through links 26, 28, 29.
Patent GB-1478256-A (GB)
Title: Sliding clasp fastener
IPC: A44B19/40
Filed: 1975-07-07
Abstract: 1478256 Sliding clasp fasteners YOSHIDA KOGYO KK 7 July 1975 [16 July 1974] 28464/75 Heading E2S A sliding clasp fastener comprises a pair of oppositely-disposed carrier tapes 20, 20 each carrying on, and along, one longitudinal beaded edge 16, 16 a series of discrete fastener elements 10 the fastener elements each comprising a coupling head 11, a pair of legs 12, 13 extending from the coupling head and having oppositely-disposed inner wall portions 14, 15, and a plurality of teeth 17-19 formed integral with said legs and projecting from said oppositely disposed wall portions, said teeth being generally triangular in shape and smaller in width than said legs, as measured along the longitudinal direction of said beaded edge, each of said teeth being at a predetermined pitch spacing with respect to a corresponding tooth on the other leg as measured along said longitudinal direction, said teeth being disposed in gripping engagement with said beaded edge to secure the fastener elements thereto. Each fastener element 10, formed by cutting a metal bar of Y-shaped cross-section, has one tooth 17 centrally located on one wall portion 14 and a pair of teeth 18, 19 on the other wall portion 15, the teeth 18, 17, 19 being offset in the longitudinal direction of the fastener by a distance P1, Fig. 3. In a modification, Fig. 6, not shown, the wall portions (14, 15) are provided respectively with three (21-23) and two (24, 25) spaced teeth. The teeth (17, 18) on the wall portions (14, 15) respectively are offset in the longitudinal direction of the element (10), by a distance (P2), Fig. 7, not shown.
Patent GB-482146-A (GB)
Title: Improvements in darning instruments
IPC: D04B17/00
Filed: 1936-10-20
Abstract: 482,146. Darning. RICHARDS, L. V. E. Oct. 20, 1936, No. 28465. [Class 112] An appliance to facilitate darning consists of a flat plate B with face teeth or a roughened surface held on the finger by a clip A formed by bending the sides of the plate. The mesh around the hole is held in situ for darning by the teeth on the plate. The plate may be larger and have more than one finger clip.
Patent GB-785819-A (GB)
Title: Stabilized solutions of hydrocortisone
Filed: 1955-10-06
Abstract: Stable therapeutic compositions comprise from 5 to 20 c.c. of ethanol to approximately 100 mg. of hydrocortisone.  The preparations may also contain a buffer such as sodium citrate and an antioxidant such as sodium bisulphite.  When diluted with sterile dextrose solutions they are particularly useful for intravenous injection.  In an example 100 mg. of hydrocortisone is dissolved in 10.52 c.c. of ethyl alcohol and the solution added to a solution of 8 mg. sodium citrate in 6 c.c. of pyrogen-free distilled water.
Patent GB-1126085-A (GB)
Title: Improvements in branding irons
Inventor: LAIDLAW ROBIN ARCHIBALD
IPC: A22C17/10
Filed: 1966-06-24
Abstract: 1,126,085. Burners. EASTERN GAS BOARD. 25 Aug., 1967 [24 June, 1966], No. 28560/66. Heading F4T. [Also in Division A1] A gas-heated branding-iron comprises a wheel 10 which carries the branding characters 32 on its external curved surface and is mounted rotatably about a coaxially disposed tubular gasburner 21 with an annular space between the wheel and the burner, the latter being provided with a plurality of rows of burner-ports 29 extending longitudinally along the burner-tube with a cross-cut 30 extending through each burner - port, thereby enlarging the exit of the port, further exits 13, 14 for the combustion - products being provided at the ends of the wheel. The wheel, which is of phosphorbronze or stainless steel, comprises an apertured cylindrical part 10, to which the characters 32 are screwed or riveted, and through the holes 31 of which project studs 33 integral with the characters. End-plates 11, 12 integral with the part 10 have outwardly-extending prongs 15, 16 which prevent the wheel from skidding on a carcase. The plates have inwardly-formed bearing surfaces 18 which ride on bearings 20 carried by the tube 21. The cross-cuts 30 extend slightly obliquely to the tube, the obliquity being reversed between adjacent series of cuts. An aluminium-faced asbestos heat-shield 25 protects the wooden handle 20 and the user. Below the handle an air-injector 27, 28 provides an air-inlet for the burner. The crosscuts may form slots extending right through the tube 21.
Patent GB-185712-A (GB)
Title: Improvements relating to the working fluid supply for turbines
IPC: F02C5/06
Filed: 1921-10-27
Abstract: 185,712. Deschamps, J. J. Sept. 5, 1921, [Convention date]. Generating combustion products under pressure.-A turbine is supplied with combustion products exhausting from the cylinders of an internal-combustion engine unit at the time of explosion, the whole of the motive power being developed by the turbine and only sufficient gas being left in the cylinders to keep up the movement of the pistons. A pair of two-stroke engine units b are shown with the pistons a integrally connected by a reciprocating rod s which is connected to valves j leading to the turbine chamber g, to valves 4 admitting fuel, and to a piston governor m. The piston governor m controls valves l which prevent the gases passing to the turbine chamber until the correct piston speed is obtained, whereupon these valves l open and the greater part of the exploded gases passes to the chamber q, sufficient being left to drive the pistons a. A turbine governor r may regulate the fuel supply. Additional fuel may be burnt at constant pressure in the chamber g, being admitted through valves 7 controlled by the turbine governor, and in this case the piston governor also controls the fuel admission to the cylinders. Four four-stroke engine units may be used. Water may be injected into the gases for cooling.