baber/WOPTO huggingface dataset:
Patent GB-1377694-A (GB)
Title: Polycarbonate composition
IPC: C08L69/00
Filed: 1972-03-10
Abstract: 1377694 Flame retardant polycarbonate compositions GENERAL ELECTRIC CO 10 March 1972 11348/72 Heading C3R A composition comprises (1) 0À1 to 3À0 weight per cent, based on the total weight of the composition, of a polyolefin selected from polytetrafluoroethylene and copolymers of tetrafluoroethylene with hexafluoropropylene, and (2) a polycarbonate selected from (a) a polycarbonate of a halogen-substituted dihydric phenol, (b) a copolycarbonate of a halogen-free dihydric phenol and a halogen-substituted dihydric phenol, (c) a mixture of (a) and (b), and (d) a mixture of (a) or (b) with a polycarbonate of a halogen-free dihydric phenol, the halogen being chlorine or bromine, and the polyolefin being of the type which does not form fibrils when subjected to a mechanical shearing action (i.e. particles will not stick together). The polyolefin may be in the form of particles having an average particle size of 0À1 to 2À0 microns. The examples describe a composition prepared by mixing (a) a polycarbonate derived from bisphenol A and p-tert.butyl phenol, (b) a copolycarbonate derived from bisphenol A and 3,3<SP>1</SP>,5<SP>1</SP>- 5-tetrabromobisphenol A and p-tert.butylphenol and (c) polytetrafluoroethylene of the type defined above.
Patent GB-1263459-A (GB)
Title: Prefabricated building panels
Inventor: HAINES DONALD JOHN
IPC: E04B1/61
Filed: 1968-03-08
Abstract: 1,263,459. Building panels. D. J. HAINES. 25 Feb., 1969 [8 March, 1968], No. 11380/68. Heading E1B. A building panel comprises front and rear sheets 10 spaced by two opposed side walls 12, at the corner lines of intersection of which each wall has a ledge 15 on which are projections such as dovetail grooves 18 for receiving connecting strip 14. In a modification (Fig. 2, not shown) the projections are of circular section and the connecting strip engages only those projections which are in outwardly facing ledges. The panels which are openended may be filled with insulation or concrete, they may be of plastics, wood or steel sheet. Front to rear panel strengthening ribs may be provided.
Patent GB-593578-A (GB)
Title: Apparatus for controlling periodically operating machinery
IPC: G05B19/12
Filed: 1944-06-19
Abstract: 593,578. Reversing gear. LOEWY ENGINEERING CO., Ltd., and FERNBACH, H. R. June 19, 1944, No. 11618. [Class 80(ii)] [Also in Group XL] In a photo-electric control system in which a control film 20 carrying a series of lightinterrupting lines 21 extending across the film as shown is moved through a photo-electric device to control a periodically operating machine (see Group XL), an electro-magnetic reversing mechanism is provided to reverse the direction of movement of the control film when the last of the series of lines has passed through the photo-electric device. The control film 20 is paid out from a roller 18 driven through the reversing mechanism from a feed roller 14 of the controlled machine. The reversing mechanism comprises two clutch halves 33, 34 running loosely on the shaft 32 of the drive roller 14, and an armature 31 keyed on said shaft so as to slide into engagement with one or other of the clutch halves 33, 34, which contains windings 35, 36. The clutch halves are geared to the shaft 37 of the roller 18 through gear trains 38, 39 and 40, 42, the latter containing an additional gear element 41. To ensure that, after the stoppage of the control film 20 when the last of the series of lines 21 has passed the photo-electric cell, the control film will be in the correct position for the start of the return movement, the roller 18 winds to a certain tension a coiled spring 43, a reversing mechanism 44 similar to that previously described and a slip clutch 46 being interposed between the roller 18 and the spring 43. The electro-magnetic clutches of the two reversing mechanisms are operated simultaneously and the arrangement is such that the tension of the spring 43 always opposes the feed movement of the control film 20. By this means, as soon as the drive for the control film stops, the spring 43 returns the film 20 to a position in which the last of the series of lines 21 is in the beam of the photo-electric device.
Patent GB-279914-A (GB)
Title: Improvements relating to apparatus for making running tests in connection with motor vehicles
IPC: G01L5/13
Filed: 1926-05-03
Abstract: 279,914. Werner, W. A. P., Mumford, R. B., Dugan, G. E. J., Pascall, C. A., and Frost, W. May 8, 1926. Dynamometers. - Apparatus for making running tests of motor vehicles comprises a track member or members adapted to receive the driving wheels which impart movement to them, and two relatively rotatable members one of which is rotated by the track member the other being braked by a force which is indicated. A shallow frame a formed with a ramp a<1> at the end or ends supports rollers b between which is received the driving wheel c. The rollers are mounted in ball bearings, one being quite free or connected to the other by a belt. One roller b is connected by gearing b<1> to a rotatable set of elements of a multiple-plate clutch d, the other set, which is capable of partial rotation being influenced by a lever d<2> one end of which is connected to a spring f stressed when the set of elements moves. The two sets are pressed together by a pair of brake levers d<1> operated by oppositely threaded screws and nuts on a handoperated spindle e. A flexible, member g operates a painter g<1> to indicate the compression of the spring. The same roller b is also coupled to a revolution counter and a centrifugal speed indicater i connected by a flexible member to an indicating pointer i<4>. Two frames a may be bolted to a transversely disposed slotted guide member to which the vehicle is anchored, the apparatus being thus capable of adaptation to vehicles of varying sizes.
Patent GB-289028-A (GB)
Title: Improvements in methods of and apparatus for cutting lengths from a continuously fed bundle of artificial threads, filaments and the like
IPC: D01G1/04
Filed: 1928-04-20
Abstract: 289,028. Soc. Italiana Lavorazioni Meccaniche, (Assignees of Beria, A.). April 20, 1927, [Convention date]. Fibres, stapling.-In the cutting of uniform lengths from a continuously fed bundle of threads, filaments and the like, particularly of artificial silk, the bundle is fed by centrifugal force to a cutter by which the bundle is cut at right angles to the directions of the feed. A bundle of artificial threads issuing from the spinning machine or machines is fed to a funnel a of a disc b rotating at a comparatively high speed and at each revolution a predetermined length of the thread bundle passes out in front of a cutter f and is cut off. The length may be adjusted by variation of the supply speed, the angular speed of the disc, or the number of fixed cutters.
Patent GB-686191-A (GB)
Title: Improvements relating to carding machines
Inventor: HOLT FREDERICK BRERETON
IPC: D01G31/00
Filed: 1950-05-10
Abstract: 686,191. Controllers. METROPOLITANVICKERS ELECTRICAL CO., Ltd. May 10, 1951 [May 10, 1950], No. 11706/50. Class 38 (iii) [Also in Group IX] An electrically driven carding machine has control equipment whereby power can only be supplied to the electric motor driving the cylinder, so as to rotate the cylinder (other than slowly), when either the cylinder door is closed or, alternatively, when a stripping brush or a grinding wheel is placed in operative position to act on the cylinder; also, in the switching arrangements shown, the supply to the motor cannot be completed for forward running when the door is open unless the mechanical drive to the cylinder is modified to effect a slow speed running. In Fig. 1, Ll and L2 are supply lines, SF and SR forward and reverse starting pushbutton switches for the motor, F and R forward or reverse contactor coils with a mechanical interlock M1 such that only one can be operated at a time, DL1 and DL2 door interlock switches which are closed when the door is closed, T is a stopping pushbutton, OCR an overcurrent relay, SL a switch which is closed only when slow speed mechanical drive is used, and F<SP>1</SP> and R<SP>1</SP> are holding contacts for R and F respectively. DL2 is closed when the door is open and either the stripping brush or grinding wheel is in position. With the door open, the motor can only be started forwardly when DL2 is closed by the stripping brush and SL by the slow drive means, and it can only be started in the reverse direction when DL2 is closed by the grinding wheel. In Fig. 4, IS is a reversing isolating switch, and LC line contacts, for the three phase lines L1, L2, L3 to the driving motor M. GI is a grinder interlock switch controlled by insertion of the grinding wheel. With switch IS in the forward position, pushbutton SF will only close line contacts LC when the grinding wheel is out and either door interlock switch DL1 or slow-speed switch SL is closed; with switch IS in the reverse position, pushbutton SR will only close the live contacts when the grinding wheel is in.
Patent GB-351628-A (GB)
Title: Brake system for automotive vehicles
IPC: B60T13/24
Filed: 1930-04-14
Abstract: 351,628. Fluid-pressure brakes. BRAGG KLIESRATH CORPORATION, 3901, Queens Boulevard, Long Island, New York, U.S.A. April 14, 1930, No. 11810. Convention date, April 16, 1929. [Class 103 (i).] Fluid-pressure brakes for vehicles comprise a foot-pedal directly connected to certain brakes to initiate their application by the physical force of the driver and thereafter continuing the application by physical force and operating a valve controlling a brake cylinder which assists the physical force of the driver. The rods from the foot-pedal 88 and the brake piston 3 are connected to the brake rock shaft 76 by a lever 77. The pedal rod 87 is also connected to the valve V by an extension 20. The valve comprises a casing 6, Fig. 2, connected to the single-acting brake cylinder by a pipe 14. Longitudinal movement of the rod 20 by the brake pedal closes a disc valve 10 against a diaphragm 8 to close the brake cylinder from the atmospheric ports 18, 19, and raises the diaphragm from a seat 11 to connect the brake cylinder to the suction chamber 12 and a pipe 32 leading to the induction pipe of an internal-combustion engine. The valve casing is mounted in a pivoted yoke 30, having an adjustable stop 35, and the valve casing is connected to a fixed point by a spring 50 which is tensioned on valve operation. The partial vacuum introduced into the chamber 13 of the valve causes the diaphragm to reseat and maintain the brakes applied at a desired pressure and also produces a reactionary effect on the foot-pedal. Brake appli. cation and release may thus be graduated. The spring 50 provides a resistance to the movement of the valve casing in order that the valves move relatively thereto to bring about operation of the brake piston, and this spring may be adjusted so that the valves operate when the brake pedal is first moved, or its tension may be relaxed so that the valve moves bodily for a certain distance before the resistance of the spring is increased sufficiently to operate the valve. The brakes of a trailer are operated by an actuator 1a which is also controlled by the valve V. In a modification both sets of brakes are treated on the same vehicle.
Patent GB-162284-A (GB)
Title: Improvements in detachable wheel rims or fellies
IPC: B60B23/04
Filed: 1921-04-25
Abstract: 162,284. Klee, J. April 26 1920. [Convention date]. Tyre attachments to rims.-In a divisible rim. the seat b<0> of the part b is formed as a series of tongues e<1>, e<2> with helical or other ribs d<1>, d<2> to engage corresponding grooves in the seat a<0> of the rim part a. The assembled rim portions are locked by a ring g which may be expanded by a wedge forced between its ends. The tongues e<1> &c. may be formed of spring steel welded to the rim.
Patent GB-350138-A (GB)
Title: Improved free-wheel coupling
IPC: G03B21/43
Filed: 1930-04-15
Abstract: 350,138. Kinematograph apparatus. GRAMOPHONE CO., Ltd. and STANLEY, H. H. V., 79, North Hyde Road, both in Hayes, and CLARK, G. F., 39, Brandville Road, West Drayton, both in Middlesex. April 15, 1930, No. 11942. [Class 97 (i).] The film-winding spool is driven through a freewheel clutch 14, 19 of special construction, allowing overrunning in both directions when the drive ceases and in some cases also a bidirectional drive. The clutch comprises a two-armed pivoted pawl 17 moved into or out of engagement with a driven ratchet ring 19 by the limited relative movement,. under the influence of inertia, of a flywheel 14 freely mounted on the driving shaft 1. The pawl is pivoted on the flywheel and deceleration thereof relative to the driver causes the tail 15 of the pawl to contact with a projection 12 on a boss 11 fixed to the driving shaft 1, to engage the pawl. The pawl is biassed towards the disengaged position, by a spring 16 anchored to an arm 13 on the boss 11 and there may be a stop pin 22 on the flywheel to ensure a slight tension of the spring when in the disengaged position. Duplicate opposite pawls may be provided for a bidirectional drive. There may also be a friction drag tending to cause the flywheel to lay behind the driving shaft. The clutch which is driven by a shaft 1 is mounted in bearings 2, 4 on the side of the casing of the film spool, to theshaft 7 of which, the driven shaft 3 is connected by worm gearing 5.
Patent GB-1040377-A (GB)
Title: Improvements relating to woven fabrics
IPC: D03D1/06
Filed: 1964-03-20
Abstract: Two-layer tape is woven by inserting weft from both edges by means of eyed needles, each co-operating with a knitting needle to form a selvedge.  At one edge, at least, both wefts are knitted together, thereby joining the two layers to produce a tape of V-shape.  Tubular tape may be made by knitting both wefts together at both edges, and the join may be reinforced by interweaving some of the edge warp threads in both layers; the two layers may be joined together by warp threads along spaced lines to produce multitubular tape.  In a V-shaped tape, for use as curtain heading tape, slits to receive T-headed suspension members may be formed at the fold by knitting only the weft inserted from the other edge at intervals, the weft inserted from the folded edge forming a normal selvedge at one edge of the slit.  The two layers may be of different widths.  Pleating cords may be woven into one layer of the V-shaped tape, or into each layer, or may be woven through both layers, thereby joining them together.  Another cord near the folded edge may form short loops on the surface to receive suspension hooks.
Patent GB-1461172-A (GB)
Title: Semiconductor laser devices
IPC: H01L21/208
Filed: 1974-03-19
Abstract: 1461172 Semi-conductor lasers INTERNATIONAL BUSINESS MACHINES CORP 19 March 1974 [12 April 1973] 12056/74 Headings H1C and H1K [Also in Division C4] A semi-conductor laser device has the structure set out below and may be constructed in stages, as follows. Firstly, on a substrate 30 of P-type GaAs are deposited layers 31, 32, 33 and 34 of P-type Ga 1-x Al x As, N-type N-type GaAs and N-type Ga 1-x Al x As respectively, formed by liquid phase epitaxy. After cleaving the left side of the resulting layered structure a thin layer of a mixture of Zn and Al is deposited on this side. At high temperatures (650-850 C.) the Zn-Al layer is alloyed into the GaAlAs and GaAs layers to produce a P<SP>+</SP>-type GaAlAs region 35. Maintaining a somewhat lower temperature causes further diffusion of Zn into the layers 32, 33, 34 to produce PN junctions indicated by line 36 and an active region of P-type GaAs 37.
Patent GB-582058-A (GB)
Title: Improvements in ventilators
IPC: B60H1/26
Filed: 1944-06-24
Abstract: 582,058. Ventilators. LANE, Ltd., P., and LANE, P. June 24, 1944, No. 12060. [Classes 20 (iii) and 137] In ventilators of the type comprising inner and outer window panels on the same level, connected by levers, the inner panel being hinged about its lower edge to swing inwardly, and the outer one hinged about its upper edge to swing outwardly, there is provided a rectangular frame 12 in which the panels 10, 11 are mechanically connected so that the inward movement of the inner panel 11 is accompanied by an outward movement of the outer panel 10, the frame having a flange 13 on its outer side, and open-sided channels 17 attached to the frames top outer and bottom inner sides in which channels are hinged the panels, each panel being mounted in its own frame 18 and the levers 20 connecting the panels being pivoted intermediate their ends to the vertical sides of the rectangular frame. As shown the frame 12 is provided on its inner side with the sector shaped portions 14. The ends of the lever 20 are provided with pivot pins 22, which engage the slots 23 formed in the lugs 24 secured to the panel frames. An alternative means of limiting the movement of the panels may comprise the provision of a spring-pressed ball or plunger at one end of each lever 20, the ball being adapted to engage a succession of holes formed in the member 14. Each frame 18 has a cylindrical portion 19 to engage the channel 17, the outer frame being formed also with a peripheral flange 16 acting as a weather seal, and the inner frame having a ring or hook pull 25 for opening the ventilator.
Patent GB-1369235-A (GB)
Title: Coal cutting machine guide assembly and spill plate assembly
IPC: E21C35/12
Filed: 1972-06-06
Abstract: 1369235 Mineral-mining installations PERARD ENG Ltd 6 June 1972 [29 April 1971] 12103/71 Heading E1F For guiding a coal-cutting machine 70 along a conveyer 32 there is mounted on the conveyer a guide assembly having a plate 30 securable to the conveyer 32, spacers 46 spaced along the plate 30 and each welded at one end to the plate, and a spill plate 28 welded to the other end of each spacer and having a projection extending part way over the channel formed between the plates 28, 32 and spacers 46 to restrain a guide shoe of the mining machine against vertical movement out of the channel as the machine passes along the conveyer. The projection may have a concave surface facing the guide channel and may comprise a curved plate that is secured to the spill plate by gussets. The guide shoe may be of cylindrical form of which the ends may be conically tapered.
Patent GB-129824-A (GB)
Title: Improvements in and relating to Shape Retaining Devices for Felt Hats.
Inventor: HAUSINGER GEORGE HENRY
IPC: A42B1/00
Filed: 1918-07-25
Abstract: 129,824. Hausinger, G. H. July 25, 1918. Sliffeners.-Soft felt hats are retained in shape by placing within the sweat band a strip of material 12, such as fine wire-gauze or pressed oil board, having a number of upstanding portions 15, 20, which may be in pairs connected by curved portions 25. The upstanding portions should vary in height, number, and disposition according to the shape of the hat with which it is to be worn. Thus, the form shown in Fig. 1 is intended for the hat shown in Fig. 2. In every case, the strip is provided with a series of parallel lines 14. through any one of which it may be cut to reduce the height so as to correspond with the height of the hat.
Patent GB-882869-A (GB)
Title: Thermoelectric generator
Inventor: FRITTS ROBERT WASHBURN
IPC: H01L35/32
Filed: 1959-04-13
Abstract: 882,869. Thermo-electric generators. MINNESOTA MINING & MANUFACTURING CO. April 13, 1959, No. 12476/59. Class 37. In thermo-electric generators utilizing elements of semi-metallic alloy of the kind described in Specification 806,640, comprising lead and at least one member of the tellurium-selenium group, the elements are individually housed in openings in a housing of electrically and thermally insulating elastic material and are placed under compressive stress so as to render them resistant to fracture. As shown, Fig. 2, cylindrical semi-metallic elements 15, 16 of positive and negative thermo-electric properties respectively, as described in Specification 814,594, are housed in bores 13, 14 in a polyethylene housing 10, the ends of the elements being coated with lead-tin solder. One end of each element is connected through a contact member 25, 26, to a conductor 27 28 and a cooling block 20, 21 of e.g. aluminium, while the other ends are electrically connected by a plate 18 of resilient metal, e.g. copper. The combined length of each element and its contact member is slightly greater than that of the bore in which they are housed, so that, when the plate 18 is screwed tightly to the housing 10, the latter is stretched and a compressive stress is applied to the elements. The diameter of the bores is slightly greater than that of the elements to allow for radial movement of the latter to absorb lateral shock forces. In a modification, four elements are located in individual bores in the housing and are connected to form two thermo-couples in series. Three cooling blocks, Fig. 4, are used: a semi-cylindrical block 29 connecting the two thermo-couples, and two quadrantal blocks 20<SP>1</SP>, 21<SP>1</SP> contacting the two free ends of the elements. Two semi-circular resilient plates 18a, 18b, Fig. 6, connect and compress the elements of the individual thermocouples.
Patent GB-370210-A (GB)
Title: Improvements in cardboard and like boxes
IPC: B65D5/50
Filed: 1931-04-29
Abstract: 370,210. Holders for electric light bulbs &c. FIELD SONS & CO., Ltd., Southgate Works, Bradford, Yorkshire, and CREASY, B. J., Charlecote, St. Gerard's Road, Solihull, Birmingham. April 29, 1931, No. 12599. [Class 18.] A holder for an electric light bulb, thermionic valve, egg, &c. comprises a pair of scored strips 2, 3, Figs. 1 and 2, which are used with or form part of an outer cardboard &c. folding or rigid container, one of which has slits 9 through which the other is passed, both being bent till the ends lie in planes at right-angles to each other. Panels 11, 12, 13 may be omitted.
Patent GB-542815-A (GB)
Title: Improved machine for cutting wire to accurate lengths
IPC: B23D25/12
Filed: 1940-08-05
Abstract: 542,815. Shearing. HOWES, S. R., and FOX, & CO., Ltd., S. Aug. 5, 1940, No. 12612. [Class 83 (iv)] A machine for cutting wire into accurate lengths rapidly comprises means B, C<SP>1</SP>, and B<SP>1</SP> for straightening and feeding the wire between rotating discs 9, 10 carrying cutters 11, 12 which are moved simultaneously towards each other each time they arrive at positions one opposite the other. The discs may be driven through variable speed gear and the cutters which may have notches 11a, 12a, Fig. 2, are moved radially in holders 13 mounted in the discs against the action of springs 15 by fixed rollers 18.
Patent GB-416644-A (GB)
Title: Improvements in the lubrication of sliding bolts of locks
IPC: F16N7/12
Filed: 1933-05-29
Abstract: 416,644. Lubricating lock - bolts. JACKSON, L. MELLERSH-, Redroofs, Highfield Road, Bickley, Kent, and BEESLEY, R. P., 58, Birkhall Road, Catford, London. May 29, 1933, No. 12638/34. Divided out of 417,684. [Class 12 (iii).] Means for lubricating the cam-shaped surface of a sliding bolt 10 of a look comprises a container or reservoir 7 for holding a supply of lubricant and having a piece or pieces of felt 11 or other absorbent material for conveying the lubricant to the cam surface. The container 7 is of triangular shape so as to fit within a recess 8 in a door jamb and is clipped in place by a spring member having arms 16. The upper and lower faces of the container 7 may have clip-engagement recesses so that the container may be adjusted in position. Within the container a piece of gauze may be spring- pressed into engagement with the back of the felt pad. The container may be provided with a filling aperture.