baber/WOPTO huggingface dataset:
Patent GB-767350-A (GB)
Title: Improvements in or relating to steering head assemblies for cycles or invalid carriages
IPC: A61G5/02
Filed: 1954-10-07
Abstract: 767,350. Cycle steering heads. RATTRAY & CO., Ltd., D. and SMITH, J. L. July 5, 1955 [Oct. 7, 1954], No. 28887/54. Class 136(3). [Also in Group XXV] In a steering head assembly for a cycle or for an invalid carriage, including a fork stem 1 screw-threaded at la externally for part of its length, a race member 2 threaded on to the upper end portion of the fork stem, and a lock nut 3 threaded on to the upper end portion of the fork stem above the race member, the end portion 7 of the lock nut 3 adjacent to the race member is shaped internally to mate with an internally screw-threaded tubular extension 6 integral with the end portion of the race member remote from the raceway. The tubular extension 6 is tapered externally and the end portion of the lock nut 3 adjacent to the extension 6 is coned internally at 7 to mate with the tapered extension. Radial slots 8 are formed in the extension 6. The peripheries of the lock nut 3 and of the race member 2 may be polygonal or may be formed with notches for engagement by an operating tool.
Patent GB-229004-A (GB)
Title: Improvements in or relating to the manufacture of hollow articles of rubber
IPC: B29C53/36
Filed: 1923-11-15
Abstract: 229,004. Gray, C. H. Nov. 15, 1923. Moulding indiarubber &c. balls, holloware.- Tennis balls and other hollow rubber articles such as motor-horn bulbs &c. are made from a triangular blank 1, Fig. 1, of sheet rubber. The corners are brought over the centre and the adjacent edges are successively pinched together, the surplus material being cut off, to form a closed pyramidal hollow blank as shown in Fig. 4. Ammonium chloride or other expanding agent is inserted before the closing of the third edge. In making motor-horn bulbs &c. a removable plug or sleeve is inserted at the apex of the pyramid. The edges are pressed together and cut by a pair of dies 7, 8, Fig. 5, with cutting-edges 9, 10, Fig. 8, bevelled inwardly. A guide-plate 12 with a guide-edge and recess 14 is secured to the lower die to position correctly the blank for the pressing and cutting. The top die is mounted on guide-rods 20 and is operated by a treadle &c. against the action of a spring 22. The bevel of the dies is made wider at the apex of the blank to form a wider joint at this point. The dies are cut away to accommodate the body of the blank.
Patent GB-207676-A (GB)
Title: New and useful improvements in coal mining apparatus
IPC: E21C29/22
Filed: 1922-10-24
Abstract: 207,676. Jensen, C. A., (Jeffrey Manufacturing Co.). Oct. 24, 1922. Coal-cutting machines.-In a coal-cutting machine adapted to be mounted on a truck for transport or for use in arc-wall cutting, and to be dismounted for long wall work, the truck being driven from the motor of the machine, a power transmission element is positioned entirely within the bounding planes of the side walls of the machine and co-operates, for driving the truck, with an auxiliary transmission device adapted to be readily coupled with, or uncoupled from, the transmission device. The crank shaft 23, Fig. 4, which drives the usual haulage drum, also drives a hollow shaft. 44 through bevel gears 45, 46; the shaft 44 is positioned entirely within the machine frame. A sprocket 35 has a stud shaft 48 which is inserted in the shaft 44 when the truck is to be driven, clutch members 49 coupling the shafts and being formed as to be held together by the rotative pressure. A suitable, closure may be provided for the hollow shaft 44 when the machine is dismounted. The truck has a slidable auxiliary frame 38 to assist in loading of unloading the machine, movement of the frame 38 being limited by engagement of a pivoted latch 39 with a member 40 on the truck.
Patent GB-701368-A (GB)
Title: Improvements in or relating to photographic cameras
Inventor: TERRETT JOSEPH
IPC: G03B17/42
Filed: 1952-11-17
Abstract: 701,368. Photographic cameras. PURMA CAMERAS, Ltd. Nov. 17, 1952, No..29007/52. Class 98(1) In a camera having a focal plane exposurecontrolling shutter and a safety shutter close to the lens, both shutters being released by a single member, especially such a camera in which also the setting of the focal-plane shutter and the film winding are effected simultaneously by a single control, to prevent unintentional release, a pin 28 is mounted in the camera body 10 for sliding movement parallel to the lens axis so that on screwing a cap 32 on to the camera, e.g. the threaded end 16 of the sleeve 15 holding the lens mount, the inner end of the pin is moved against a return spring 31 into the path of the safety shutter 19 to prevent it moving and thus the opening of both shutters. Preferably as shown, the lens mount 12 is mounted in the sleeve 15 so that on applying the cap the mount is displaced inwardly against a spring 13, and the shutter 19 is pivoted on a semi-circular disc dished to increase its rigidity, and to the pivot of which is secured a pinion engaged by a rack on the camera release rod, release of the focal plane shutter being effected only after the rack has fully opened the safety shutter.
Patent GB-393290-A (GB)
Title: Improvements in and relating to vacuum tight seals
IPC: H01J5/42
Filed: 1931-10-19
Abstract: 393,290. Leading - in insulators; metallic-vapour rectifiers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Oct. 19, 1931, No. 29034. Convention date, Oct. 18, 1930. [Class 36.] A conductor is sealed into the wall of a metallic vessel, such as a metallic-vapour rectifier or a refrigerating machine, by means of an insulating body of pressed material, on to which metallic sleeves or shells are shrunk by utilizing the difference in the temperature coefficients of expansion of the materials of the sleeve and of the body. A heated mixture of glass and mica is pressed by a heated die into the required shape 2, Fig. 2, within a shell, which is divided subsequently by turning into the shells 1, 3. The die may act through a heated metallic plate which may be bored out if it adheres to the mixture. The inner and outer electric conductors 4, 5 are secured to the part 3, and the part 1 is welded to the metallic vessel. In a modification, shells 1, 3, Fig. 4, separated by a carbon ring 7 and closed at one end by an iron disc 8 are placed in a pressing device 6. The outer surface of the shells and the inner surface of the device 6 are coated with a mixture of oil and graphite dust, and are conically shaped to facilitate the removal of the finished seal. In a further modification, the shells 1, 3, Fig. 5, and the ring 7 are heated within a tube 6 by induction, and a hollow glass body 2 is heated and blown by compressed air into contact with the shell. A die 11 is located at the lower end. The ends of the glass cylinder are cut away subsequently. Reference has been directed by the Comptroller to Specifications 239,049 and 264,526, [both in Class 7 (iv), Internal-combustion engines, Igniting in].
Patent GB-172475-A (GB)
Title: A machine for manufacturing hollow building blocks
IPC: B28B7/18
Filed: 1920-10-14
Abstract: 172,475. Hesselman, B. O. W., and Mattson, O. M. G. Oct. 14, 1920. Tamping - machines; moulds.-In a machine for moulding hollow building-blocks, the mould is movable upwards from a fixed table, and the cores are directly connected with the mould by means of relatively thin pins resting on the edges of the mould in order that tamping may not be interfered with. The cores 12, Fig. 3, are firmly or loosely held in the mould by relatively thin pins 13 or 14 respectively. The mould 4 is secured to the lugs 5, which slide on rods 1, and is operated by rods 6, a shaft 7, and a weighted hand-lever 11. The fixed table 2 is shown having thereon on ordinary pallet 3. A slide 15 having plungers 16 is provided for tamping the material in the mould and is suspended by a spiral spring 22. The moulded block is held down by the tamper during a portion of the time the mould and cores are raised, the tamper being raised during the latter portion of the upward movement by the mould coming in contact with the slide 15.
Patent GB-321788-A (GB)
Title: Improvements relating to coal cutting machines
IPC: E21C27/02
Filed: 1928-10-10
Abstract: 321,788. Hirst, G. A., and Ingham, C. Oct. 10, 1928. Coal-cutting machines.-A coalcutting machine for removing coal directly from thin seams comprises a rotary cutter member slightly less in diameter than the thickness of the seam and built up of helically flanged sections A carrying cutters a<2> and threaded on to stepped portions b of a shaft B on which they are secured between a flange b<1> and a washer b<3>. The shaft B is inserted into either end of a hollow shaft C in which it is held by a cap c'. The cutting shaft and shaft C are driven from a motor G through gearing f<1>, f, e<2>, e', e, E and a slidable clutch sleeve D controlled by a handle d<3>; the feed drum J is driven through gearing h, h<1>, eccentric H, links h<3>, h<5>, h<7>, h<8>, and suitable gearing.
Patent GB-970774-A (GB)
Title: Improvements in or relating to wall duct units
Inventor: CHAPMAN FREDERICK WALTER
IPC: F24C15/00
Filed: 1962-07-30
Abstract: 970,774. Sealing pipes in walls. MAIN MORLEY Ltd. June 11, 1963 [July 30, 1962], No. 29276/62. Heading F2G. Means for securing and locating ducting in a wall comprises two similarly dimensioned, apertured plates 15, 27 arranged at opposite ends of one or more ducts 25, 26 and means 20, 30 on the plates for locating the duct or ducts in register with the aperture or apertures in the plates. Sealing material 21, 31 is provided between the ends of the duct or ducts and the plates such that, on drawing the plates together, as, for example, by tie-rods 19, the sealing material is compressed. In the construction shown six tie-rods 19, one at each corner of the plate and two along a central strip, are held at one end by tubular nuts 32 which pass through holes in plate 27 and possess tool engageable heads. At their other ends the tie-rods penetrate part way into internally threaded bushes 18 attached to plate 15, the outer end of each bush providing an engagement for securing screws for a balanced flue heater. Short bushes 18 are also provided, these bushes being engageable by further securing screws. The locating means 20, 30 consist of tapered lugs formed when the apertures are cut in the plates. Both plates are formed with inwardly turned flanges 6, 28 and outwardly turned flanges 9, 29, whereby the plates are cemented or grouted into the wall. Plate 15 is further provided with a bracket 23 by which the plate is secured to the wall by screws 4 and wall plugs 3. Within the flanges 30 associated with the duct 25 is located a sheet metal extension 33 across the outer end of which extends a guard rod or wire 34. The flanges 30 of the lower duct 26 are provided with a drip sill 35, the flanges also having two guard wires 36 extending between them.
Patent GB-1478673-A (GB)
Title: Washing-machine control
IPC: D06F34/10
Filed: 1974-07-02
Abstract: 1478673 Washing machines PHILIPS GLOEILAMPENFABRIEKEN NV 2 July [5 July 1973] 29352/74 Heading D1A In a washing machine with a d.c. motor 1 which can drive a drum at a washing speed and also accelerate it for spin drying from a low speed with the tub full of water to a maximum speed with a drained tub, the motor speed is controlled by an electronic speed regulator 3 and an adjustable resistor 6 which determines the maximum speed and is short circuited to provide the low speed by a switch 14 sensitive to the tub water level or otherwise providing a delay before opening. This permits distribution of laundry before the water is drained and the critical speed of the drum is passed through. The reversing motor 1 is energised via a bridge rectifier 2, including two thyristors controlled by the regulator 3 in series with a tub water heater 13. Programmer switch 4 is in parallel with a water level sensitive switch 5 which closes when the tub is full. The switch 14 may be coupled to the switch 5 or be a second water level sensitive switch or be actuated by the programmer as is a drain pump.
Patent GB-1190557-A (GB)
Title: Doctor in a Paper-Making Machine.
IPC: D21G3/00
Filed: 1967-06-26
Abstract: 1,190,557. Papermaking. BELOIT CORP. 26 June, 1967 [25 July, 1966], 'No. 29380/67. Heading D2A. A doctor for scraping the surface of a roll in a papermaking machine comprises a hollow back close to and extending along the roll, and pivoted about an axis parallel to the roll, a blade extending along and engageable with the surface of the roll, and several long resiliently yieldable members connecting the blade with the back. As shown, the back 13 can be rotated about the axis 34 by a device 38. The blade 11, in the position shown engages 'the surface of the roll 12. Resiliently yieldable rods 27 extend through openings 28 in the wall of the back, and each carries a blade-holder 29. The blade 11 has a flange 33 which is held in a notch 30 by a keeper 31. Each holder 29 has a boss 42, which can engage, under its own weight, a seat 41 on the back when it is turned in the direction of the arrow 36, to align the blade holders for insertion of the blade. If the doctor assembly is to be .oscillated, .retainers 43 keep the blade holders in a fixed position relatively to the back. The doctor may be used to remove particles 'of .paper stock from a roll, or to scrape off and collect broke.
Patent GB-534093-A (GB)
Title: Improvements in water-operated air compressors
IPC: F04B39/00
Filed: 1939-11-04
Abstract: 534,093. Hydraulic air pumps. GASKELL & CHAMBERS, Ltd., and WEIGHTMAN, J. S. Nov. 4, 1939, No. 29406. [Class 8 (i)] Air is compressed in a chamber 10 by the alternate supply and discharge of water through an inlet 13 and an outlet 12 controlled by a slide valve 15 actuated by a weighted lever 19, 20, which is tilted by a float-actuated rocking member with jaws 53 alternatively engaging a projection on the lever. As the rising float turns the lever to open the water outlet, a cam track on the weight first engages a knob 44 on a lever to open a relief valve 46, through which water escapes if the valve lever 19 sticks. If, however, the valve 15 is operated to open the outlet, water falls in the chamber and air enters by the valve 46 until the fall of the float again reverses the slide valve. The compressed air is discharged through a vessel 30 containing a non-return air valve 36 and a sliding float 32 actuating a check valve 34 to prevent discharge of water.
Patent GB-970484-A (GB)
Title: New 17-desoxy corticosteroids and processes for their preparation
IPC: C07J5/00
Filed: 1961-08-15
Abstract: The invention comprises 9a -fluoro-21-substituted - 11b  - hydroxy - 16a  - methyl - pregna-1, 4 - dien - 3, 20 - diones having the structural formula: <FORM:0970484/C1/1> and a process for the preparation thereof by dehydrating a 21-acyl-16a -methyl-17-desoxyprednisolone to yield the corresponding 21-acyloxy-16a -methyl-pregna-1, 4, 9(11)-triene-3, 20-dione, hydrobrominating and formylating this compound and reacting the resulting 9a -bromo compound with a weak alkali to yield 9b , 11b -epoxy-21-hydroxy-16a -methyl-pregna-1, 4-diene-3, 20-dione, acylating this compound to a 21-acyloxy-9b , 11b -epoxy-16a -methyl-pregna-1, 4-diene-3, 20-dione and hydrofluorinating this compound to produce the corresponding 21-acyloxy - 9a  - fluoro - 11b - hydroxy-16a -methyl-pregna-1, 4-diene-3, 20-dione.  Dehydration may be effected with methane or p-toluene sulphonyl chloride, and bromination and formylation by the action of N-bromo-succinimide and perchloric acid in the presence of dimethylformamide.  The 21-acyloxy substituent may be saponified.  Specification 970,482 is referred to.
Patent GB-684201-A (GB)
Title: Improvements in or relating to exposure meters adapted to be attached to photographic cameras
IPC: G03B7/08
Filed: 1950-12-01
Abstract: 684,201. Photographic exposure meters. LEITZ GES. E. Dec. 1, 1950 [Feb. 13, 1960], No. 29434/50. Class 98 (i). An exposure meter, which is adapted to be attached to a photographic camera having means for setting the exposure time, comprises a spindle rotatable by means of an adjusting member permanently coupled to a setting means of the exposure meter, and means for coupling the spindle to the means of the camera for setting the exposure time whereby the setting means of the exposure meter is coupled by means of the spindle to the means of the camera for setting the exposure time, the adjusting member being displaceable in the axial direction of the, spindle to release the coupling between the setting means of the exposure meter and the means of the camera for setting the exposure time. As shown, an exposure meter 3 has a shoe 2 by which it is attached to a photographic camera 1. A spindle 6 with an adjusting knob 10 is movable axially against action of a spring 15 into a position wherein a coupling member 5 on the spindle engages a shutter speed setting knob 4 on the camera. Spindle 6 also carries a gear-wheel 8 meshing with a gear-wheel 9 driving setting means 7 consisting of a circular scale of lens apertures. Knob 10 is turned until the lens aperture selected for the exposure on the scale 7 is brought opposite the pointer of the meter, which may be of the photo-electric or optical type. At the same time knob 4 is adjusted to give the correct shutter speed. Spindle 6 has a pin 6a bearing on a plate 21, to keep the spindle displaced and in engagement with knob 4. If the shutter speed required is longer than the maximum which can be set by knob 4, knob 10 is turned until knob 4 reaches the end of its range of adjustment, at which point pin 6a passes through a slot in plate 21 and spindle 6 is disengaged from knob 4. Gear 8, however, is of such thickness as to remain in engagement with gear 9 and the scale 7 can still be adjusted to the required position. The required exposure can then be read on an auxiliary scale on the body of the exposure meter by means of a pointer on scale 7. In a modification, spindle 6 is not axially displaceable, but gear 8 is movable along the spindle to be clutched thereto or freed therefrom. Specification 479,372 is referred to.
Patent GB-918903-A (GB)
Title: Improvements in and methods for making dressmaking forms or dummies
IPC: A41H5/01
Filed: 1961-08-15
Abstract: 918,903. Dress forms. JACKSON, S. A. Aug. 15, 1961 [Sept. 16, 1960], No. 29440/61. Class 52 (5). Each half of an adjustable wire dress form is constructed from a rectangular grid of straight wires welded or otherwise permanently connected at their crossing points. After the horizontal wires have been bent into a sinuous form and curved to form a trough, the upper ends of vertical wires are welded together at ef, gh and jk and four additional sinuous wires r, t and u attached. The wires may be coated with plastic either before making the grid or, alternatively, by dipping the completed heated form into plastic powder. Tabs v for joining the two halves of the form have snap or clasp fasteners. A stand head for supporting the completed form by means of a hip-ring is described.
Patent GB-847561-A (GB)
Title: Improvements in or relating to heat protective coatings
IPC: H01K1/46
Filed: 1958-09-15
Abstract: A heat-protective coating for processing aluminium base shells for electric lamps comprises from 3% to 30% by weight sodium borophosphate, from 10% to 15% by weight sodium polyacrylate, and from 55% to 87% by weight water.  The composition may also contain up to 5% by weight of ammonium polyacrylate or potassium silicate in place of an equivalent amount of water.
Patent GB-1114523-A (GB)
Title: Improvements in or relating to invertor circuit arrangements
Inventor: BERLOCK MONTY DAVID
IPC: H02M7/515
Filed: 1964-07-20
Abstract: 1,114,523. Inverting. PLESSEY-UK Ltd. 3 Sept. 1965, [20 July, 1964], No. 29467/64. Heading H2F. Protection against variation in the input supply voltage to an inverter 1 is effected by a circuit which prevents triggering of the inverter switching elements SCR1, SCR2. As shown, a control circuit for the inverter includes a pulse generator 6 which supplies gate signals to the main inverter elements SCR1, SCR2, and also to a commutating element SCR3 The supply to the gates of SCR1 and SCR2 is connected via a saturable transductor 8 which is controlled in dependence on the input supply detected at 9. In a modification (Fig. 4, not shown), a pulse derived when a main element fires, and a signal derived from the input voltage detector, are combined in an "AND " gate which operates to fire a thyristor short-circuiting the supply to the gates of the main elements. The inverter switching elements may be thermionic valves or thyristors.
Patent GB-484167-A (GB)
Title: An improved sway eliminator and shock absorber assembly for vehicles
IPC: B60G15/06
Filed: 1936-10-29
Abstract: 484,167. Road and like vehicle undercarriages. MONROE AUTO EQUIPMENT CO. Oct. 29, 1936, No. 29480. Convention date, March 23. [Class 108 (ii)] In a vehicle-stabilizing device of the kind in which a transverse torsional bar 18 is interposed between the sprung and unsprung parts and is operatively combined with shock-absorbing means, a single shock-absorber is employed and is connected between the longer of two side arms 20<1> of the bar 18 and a plate 25 secured to the main leaf spring 16. The ends of the side arms 20, 20<1> of the bar 18 are connected by links 21 to the spring plates 25, and the effect of making the arm 20<1> to which the shock-absorber is connected longer than the arm 20 is to compensate for the damping effect of the shockabsorber on the one side of the vehicle. Any suitable shock-absorber may be employed, Fig. 3 (not shown), illustrating a convenient form.