baber/WOPTO huggingface dataset:
Patent GB-611154-A (GB)
Title: Improvements in loaders
IPC: E02F3/40
Filed: 1946-04-23
Abstract: 611,154. Load-handling machines. DROTT, E. A. April 23, 1946, No. 12281. [Class 78 (iii)] A loader for handling material such as pulp wood, logs, posts, cut stone, poles, boxes, bales and the like comprises a tractor vehicle 5 on which there is mounted to project in front a load-carrying support comprising arms 15 having tiltably mounted at the front end a load-receiving means 24 which is pushed under the load through advance of the tractor vehicle and which has a movable gripper arm 40 to retain the material, separate motor means, viz. hydraulic cylinders 18, 29, 46 being provided for raising and lowering the arms 15, for tilting the means 24 and the gripper backwardly on the arms 15 and for moving the gripper into and out of load-gripping position. The loadcarrying arms 15 are pivoted at 14 to the support 13 and carry a counterweight 17. The arms 15 are raised and lowered by doubleacting hydraulic cylinders 18, the pistons 19 of which are pivotally connected to the supports 12 at 20 and the cylinders of which are connected to the arms 15 by links 21. Groundengaging shoes 23 are mounted at 23<1> on the lower ends of the arms. The load is carried by spaced arms 24 forming a rack to which upright arms 25 are rigidly connected. This structure is pivoted at 16 to the arms 15, and is strengthened by transverse plates 27, 271 welded thereto. The rack is swung to any desired angular position by a pair of doubleacting hydraulic cylinders 29 which are pivotally mounted on a pin 30 on the arms 15. The pistons are connected to pins 32 on levers 33 which are pivoted at one end to brackets 35 on the arms 15 and at the other ends connected to arms 25 by links 37. A gripping arm 40 having legs 41 is pivotally mounted on a shaft 42 pivoted in the arms 25. An extension 43 of one of the legs 41 is pivotally connected to a rod 45 of a double-acting hydraulic cylinder 46 pivotally carried at 47 on a bracket arm 48 secured to one of the arms 25.
Patent GB-636810-A (GB)
Title: Improved thermoelectric switch
IPC: H01H37/00
Filed: 1948-05-05
Abstract: 636,810. Control of A.C. motors; thermal switches. GENERAL MOTORS CORPORATION. May 5, 1948, No. 12305. Convention date, May 14, 1947. [Classes 38 (iii) and 38 (v)] A thermoelectric switch which is opened and closed in accordance with the current flowing through it is provided with a device which operates in response to the ambient temperature to open the contacts and render them unengageable while the ambient temperature is maintained. In the construction shown, two fixed contacts 22, 23 are engaged by movable contacts 31, 36 carried by a member 28 which is secured by a spring 26 to a fixed bracket 24. The spring urges the member 28 away from the bracket. The.contacts 31, 36 are carried by the member 28'through the intermediary of snap-action springs 32, 37, the free ends of which engage in notches 33 in the member 28. The action of the spring 26 is opposed by a thermoelectric element 40 which is fixed at one end to a bracket 25 and fixed at the other end to a hook 41 on the member 28. At normal temperatures the element 40 which may be a metal rod or wire holds the member 28 against the bracket 24 and the springs 32, 37 hold the contacts 31, 36 against the contacts 22, 23. Current passing through the rod 40 heats and expands it, thus allowing the spring 26 to move the member 28 away from the bracket 24 and to cause the springs 32, 37 to move the contacts 31, 36 away from the fixed contacts. When the switch is used to control a motor having starting and running windings the contacts 31, 23 are arranged to be separated before contacts 36, 22, the starting winding being connected to contact 23 and the running winding to contact 22, one power line being connected to the bracket 25. When the motor is started the heavy surge of current heats the rod 40 and causes the member 28 to move and open the starting contacts 31, 23. During normal operation of the motor the rod 40 is not heated sufficiently to open contacts 36, 22, and the running winding circuit is not interrupted. Overload or other cause of excessive current in the rod 40 causes it to expand further and open contacts 36, 22. The housing of the switch also encloses a device responsive to the ambient temperature so that abnormal heating of the motor opens the switch. This device comprises a thermal element 60 anchored to a fixed platform 58 and having a spring finger 61 seated at one end in a notch 57 in the platform. A rise in ambient temperature causes the element 60 to bend away from an arm 55 extending from platform 58. The arm 55 may be bent to adjust its position and serves as an adjustable stop. The free end of the element 60 carries a bifurcated actuating arm 70, the two fingers 71, 72 of which extend to points adjacent the arms 30, 35 of the movable contacts 31, 36 as shown in Fig. 2. A high ambient temperature flexes the element 60 and the fingers 71, 72 shift the contacts 36, 31 from the fixed contacts 22, 23 and the circuits are maintained opened as long as the high temperature persists.
Patent GB-1478934-A (GB)
Title: Blind fastener
IPC: F16B19/10
Filed: 1975-03-25
Abstract: 1478934 Riveting TEXTRON Inc 25 March 1975 [8 April 1974] 12324/75 Heading B3U [Also in Division F2]  A blind rivet comprises a headed sleeve 16, a mandrel 18, a locking member 20 and a force transmitting collar 22 consisting of two parts 22a, 22b frangibly joined at 22c, the device 22 being arranged to transmit the compressive force to the sleeve 16 while the mandrel is being drawn into the sleeve and to fracture at a predetermined force greater than that required to draw the mandrel on to the sleeve so that part 22b thereof may then engage the locking member 20. Mandrel 18 is drawn into the sleeve until shoulder 18c engages shoulder 16c of the sleeve. Greater force causes the member 22 to fracture at 22c, and part 22b engages locking member 20 and forces it into the space between taper surfaces 18d, 16d on the mandrel and sleeve. The mandrel breaks at 18a.
Patent GB-1017392-A (GB)
Title: Transistor amplifiers
Inventor: SKINNER DENNIS GRANT
IPC: H03F3/45
Filed: 1961-04-06
Abstract: 1,017,392. Transistor amplifying circuits. ROTAX Ltd. March 26, 1962 [April 6, 1961], No. 12335/61. Heading H3T. A long-tailed pair comprising transistors 5, 8 connected as shown in the Figure has its output impedance increased by increasing the effective impedances of resistors 3, 4, 6, 7, by connecting transistors 19, 20 of opposite conductivity type to transistors 5, 8 in the manner shown. Resistances 3, 4 and 6, 7 may be replaced by single resistances in which case a tapping of the two single resistances is connected to the bases of NPN transistors 19, 20 respectively. If the resistances of the circuits between the emitters of transistors 19, 20 and terminal 1 are slightly less or equal to the resistances of the circuits between the bases of transistors 19, 20 and terminal 1 then the effective impedances of resistors 3, 4 and 6, 7 are increased. Resistors 23, 24, 25, 26 may be omitted and capacitors 17, 18 replaced by a direct connection. Part of the emitter impedance of the long-tailed pair comprises transistor 11.
Patent GB-1104841-A (GB)
Title: Improvements in or relating to lanterns
Inventor: CHUNG SZE-YUEN
IPC: B21C25/02
Filed: 1965-03-24
Abstract: 1,104,841. Electric battery lanterns. SONCA INDUSTRIES Ltd. 21 Jan., 1966 [24 March, 1965], No. 12566/65. Heading F4R. In a battery lantern the bulb 15 is mounted in a socket 45 which is movable between a first position, in which the bulb is at the focus of a reflector 17 and the lantern emits a beam, and a second position (as shown) in which the bulb is spaced from the focus and the lantern emits diffused light. The lantern has a casing 11 containing a removable polyethylene cartridge 24 which houses the batteries 31a-31c and includes a hollow post 27 in which a metallic casing 44 carrying the socket 45 is slidably mounted. The socket is moved by means of a positioner 23 having a knurled knob 61 at one end and a rivet 62, which engages a slot 63 in the casing 44, at the other. To lower the socket from the second position to the first, the positioner is pulled fully out to draw the casing 44 down into the post 27. The positioner may then be pushed in so that the rivet 61 travels up the slot 63 and can be engaged in a transverse retaining notch 64 at the upper end of the slot. To raise the socket, the positioner is pulled out again. until the rivet can be engaged in a lower notch 65 and the positioner and casing are then pushed upwards together. A leaf spring 46 secured to the cartridge engages in peripheral recesses 57, 58 in the casing 44 to hold the socket releasably in either position. The switch strip (56, Fig. 3, not shown) is controlled by a knurled ring (51) rotatable on the lantern casing. The cover 12 has its upper surface 14 formed as a lens.
Patent GB-1027685-A (GB)
Title: Improvements in and relating to inductive devices
Inventor: LEWIS COLIN BRIGHT
IPC: H01F29/14
Filed: 1962-04-02
Abstract: 1,027,685. Transformers and inductors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 26, 1963 [April 2, 1962], No. 12589/62. Heading H1T. An inductive device has a winding mounted on a closed figure core, which is subdivided to define two parallel flux branches, having non- variable air gaps, which differ between the branches to cause different reluctance characteristics. In this way, undesirable changes in the effective inductance values, especially when the winding is supplied by D.C. whose magnitude may vary, may be reduced. In one arrangement (Fig. 1, not shown), the winding 1 is mounted on the divided centre limb 3 of a shell cone, insulation 2 being provided. C- shaped outer limbs 4, 5 complete two parallel flux paths, the former having small gaps 6, 6<SP>1</SP>, the latter larger gaps 7, 7<SP>1</SP>. In a second arrangement, two elongated annular cores 8, 8<SP>1</SP> (Fig. 2, not shown) are arranged side by side, the core 8 having smaller gaps 10 than those (10<SP>1</SP>) in core 8<SP>1</SP>. A winding 9 surrounds one of the straight portions of the cores. Curves of inductance valves against direct current are given (Fig. 4, not shown) to indicate the advantages of the invention, which may be applied to smoothing chokes for direct current power packs.
Patent GB-1085361-A (GB)
Title: Improvements in and relating to heat exchangers
Inventor: HEATHCOTE JOHN
IPC: F28D7/08
Filed: 1963-03-29
Abstract: 1,085,361. Tubular heat exchangers. FOSTER WHEELER Ltd. June 26, 1964 [March 29. 1963], No. 12590/63. Heading F4S. A heat exchanger coinprises a casing 14 in which a bundle of tubes 16 extends downwardly from an end of at least one lever 30 pivoted at 32 from a point 34 near the upper end of the casing the other end of the lever being hinged to a rod 40 contacted by the same fluid as the casing and having an expansion coefficient and length such that the header 20 remains at substantially the same horizontal plane regardless of thermal expansion of the casing. In the form shown the tubes 16 extend vertically between an upper outlet header 20 and a lower inlet header 18. The tubes are supported by a grid 38 depending from the levers 30. The rods 40, of a material, e.g. stainless steel, with a coefficient of expansion greater than that of the casing extend from the levers 30 to the bottom 42 of the casing. Expansion loops (not shown) may be included in the lower ends of the tubes 16 and the headers may be provided with flexible seals (not shown).
Patent GB-592386-A (GB)
Title: Improvements relating to reciprocating pumps, particularly for central lubrication systems
IPC: F04B7/04
Filed: 1945-05-18
Abstract: 592,386. Reciprocating pumps. TECALEMIT, Ltd., and LE CLAIR, C. C. S. May 18, 1945, No. 12640. [Class 102 (i)] A lubricating pump comprises a number of individual pumps arranged in an inclined manner as shown in Fig. 1 around an actuating cam 39. The cam has a sharp incline so that there is a quick delivery stroke and a slow suction stroke. Several banks of pumps may be arranged around one or more cams. Each pump comprises a plunger 21 having a transverse port 23 and a longitudinal port 22 and the oil in the cylinder is put under pressure when the port 23 is covered by the liner 17. The oil is trapped between the plunger 21 and a spring- loaded piston 26 that has a longitudinal port 27 and a transverse port 28 and delivery takes place when the transverse port 28 is uncovered by a groove 17A in the liner. The stroke of the piston 26 and thus the delivery of the pump is adjusted by varying the thickness of the washers 30 beneath the head 29. The longitudinal and transverse ports in the piston may be replaced by allowing a small clearance between the piston and the cylinder. The cam or cams of the pump are driven by a shaft 6 on which is mounted a pinion 53 gearing with a planet wheel 54 integral with a pinion 56 meshing with a stationary ring 50 and a toothed ring 58 connected to the cam or cams. The ring 58 has one more tooth than the ring 50 to give a large reduction. Weights 63 are mounted on the planet for balancing purposes. The delivery of the pumps may be arranged axially or perpendicular to the cylinders. The cam may be stationary and the cylinders arranged to revolve. Specification 586,756 is referred to.
Patent GB-234632-A (GB)
Title: Improvements in and connected with the treads of boots and shoes
IPC: A43B13/14
Filed: 1924-05-23
Abstract: 234,632. Cummings, G. A. May 23, 1924. Foot-arch supports.-A boot or shoe is provided beneath the sole with a support A which fills up the space between the heel and sole on the outside only as shown in plan in Fig. 3. The support may be made of rubber, leather, &c. and may be formed integrally with the sole and heel or as a separate piece attached by sewing, nails, screws, solution, &c.
Patent GB-272831-A (GB)
Title: Improvements in the manufacture and production of valuable hydrocarbons and derivatives thereof from coal and the like
IPC: C10G1/08
Filed: 1926-02-11
Abstract: 272,831. I. G. Farbenindustrie Akt.- Ges. Feb. 11, 1926. Addition to 247,584. Hydrogenation, destructive. - In the destructive hydrogenation of coal and other like carbonaceous solids in presence of added combined sulphur as described in the parent Specification, the hydrogen or other reducing gas is used in the form of a stream, and the process is preferably carried out continuously by the continuous feeding of the raw materials and withdrawal of the products. Specifications 247,585 and 249,493 also are referred to.
Patent GB-723260-A (GB)
Title: Improvements in or relating to machines for filling bottles or other containers
IPC: B67C3/26
Filed: 1952-05-20
Abstract: 723,260. Bottling. FARRINGDON WORKS & PONTIFEX & SONS, Ltd., H., and HAINES, A. E. July 2, 1953 [May 20, 1952], No. 12772/52. Class 125 (2). The rate of filling in a counterpressure bottling machine is controlled by controlling the exhaust of gas displaced from the bottle, a chamber being alternately moved over a port from which it receives gas from the bottle and a port through which this gas is vented to the atmosphere. Although the invention is applicable to filling machines having one head or a line of heads, as shown in Fig. 1, a rotating reservoir 1 fitted with a plurality of heads 22 is supplied with liquid through a pipe 5 and with pressure gas such as air through pipes 13, 11 a tubular member 9 fixed to the reservoir 1, a pipe 14 and a valve 15 controlled by a float 16. At starting, the pressure gas can be introduced through a pipe 18 and a hand-valve 17. The reservoir has a snift-valve 19 and a pressure gauge. The filling liquid displaces gas from the bottle through a pipe 41, a sight glass 37 and a pipe 42 to a valve member 44 keyed to the member 9. Sight glass 37 contains a float having a conical top which closes the entrance to pipe 42 if liquid rises in the gas passages. Each pipe 42 is connected to an inlet passage 49 disposed radially in the member and connected to the top surface of member 44 by a vertical bore 51. Between the inlet passages 49 are outlet passages 50 connected to exhaust tubes 48 and to the top surface of the member by bores 52. Above the member 44 a valve body 55 is rotated through a belt 76 and gearing 77 by a shaft 78 driven by a power source of variable speed. The lower surface of the body 55 has ports 59 communicating with a ring of vertical chambers arranged in pairs each of which consists of two chambers 60, 62, the former containing a piston 61 and joined together by a circumferential groove 63. In operation, the body 55 is rotated at a different speed from the member 44 fixed to the machine. Assuming the chambers 60 to be aligned through ports 51, 59 with the inlet passages 49, then the displaced gas will force up the pistons 61, the gas on the other side thereof being exhausted through grooves 63, chambers 62, bores 59, 52 and outlet passages 50. As the body 55 rotates, displaced gas is trapped under pistons 61 until the chambers 60 are in alignment with the exhaust parts 52. Displaced gas then flows from pipes 42 to chambers 62 and forces the pistons 61 downwardly to exhaust the previously trapped gas. This operation repeats until filling is finished. In a modification, the pistons 61 and grooves 63 are omitted, so that each vertical chamber in body 55 alternately receives a charge of displaced gas and is vented as it passes over the parts 51, 52. These lastmentioned chambers or the chambers containing pistons 61 may be disposed radially and horizontally within the body 55. It is stated that, if the exhaust of the valve means be connected to a source of vacuum, then the apparatus can be used for filling liquids under atmospheric pressure.
Patent GB-574160-A (GB)
Title: Improvements in or relating to axial flow cooling structure for aircraft engines
IPC: F02F1/06
Filed: 1944-07-05
Abstract: 574,160. Cooling cylinders. UNITED AIRCRAFT CORPORATION. July 5, 1944, No. 12840. Convention date, Aug. 28, 1943. [Class 7 (ii)] A cooling arrangement for internal-combustion engine cylinders comprises spine-cooling members 11, thermally united to the cylinder wall 10 and projecting substantially radially outward therefrom, a jacket 13, preferably of heat-conducting material, 'thermally united to the spines at their outer ends, an inlet member 14 forming a chamber of decreasing crosssectional area circumferentially of the cylinder so that the air is equally distributed circumferentially around the spines, and an outlet member 15, at the opposite end, similarly shaped for withdrawing air from the space within the jacket. The spines 11 may be of cylindrical or tapered form and solid or hollow for a portion of their length.
Patent GB-109472-A (GB)
IPC: B61L3/04
Filed: 1916-09-11
Abstract: 109,472. Hall, L. G. Sept. 11, 1916. T r a c k apparatus for stopping trains.-In apparatus of the kind in which a track ramp operated simultaneously with the signal releases a catch controlling the brake mechanism, a shaft 6 is rotated by a spring 10, when the catch 12 is released, by the ramp 1, from a slot 11 in the disk 8. The rotation of the shaft applies the brakes either by mechanism 9, Fig. 1, or by placing the passage 34, Fig. 3, in communication with the train pipe. The ramp has a curved upper extremity 3, and may be pivoted, Fig. 1, or may slide vertically, Fig. 3. The catch 12 may be held in its normal position by a spring-pressed detent on the supporting bracket. The brake apparatus may be re-set by means of a pivoted bar 19 provided with a slot engaging a crank-pin 18 and with an L-shaped member 26 having a spring- pressed pivoted arm 25.
Patent GB-1285006-A (GB)
Title: Improvements in or relating to damping means for isolating apparatus from external mechanical shocks
IPC: F16F1/373
Filed: 1971-05-04
Abstract: 1285006 Resilient mountings; bearings BROWN BOVERI & CO Ltd 4 May 1971 [6 May 1970] 12874/71 Headings F2A and F2S An assembly for supporting apparatus, e.g. a compressed gas switch (16, Fig. 3, not shown) in an environment where horizontal shocks, e.g. from earth tremors are experienced, comprises a structure 2 adapted to be firmly anchored in a foundation and containing upper and lower horizontal parallel planar bearing surfaces 11, a support 6 for carrying the apparatus and mounted inside the structure on balls 10 which roll along the bearing surfaces and, by engaging them, prevent vertical movement of the support with respect to the surfaces, and a resilient centering element 13 acting between the structure 2 and the support 6 and urging the support 6 to a rest position (Fig. 2a) in the structure 2, from which it can move temporarily in any direction horizontally against the bias of the element 13 when the foundation experiences a horizontally directed sudden shock movement. The element 13 is a rubber annulus with metal rings (13a, Fig. 1, not shown) on the end surfaces. The bearing surfaces 11 are resiliently biased towards one another by backing rings 12. There is rolling friction between the parts 2 and 6.
Patent GB-330080-A (GB)
Title: Improvements in the manufacture of glass reflectors
IPC: G02B5/08
Filed: 1929-04-26
Abstract: 330,080. Swan, P. April 26, 1929. Reflectors of the kind comprising a glass sheet having its rear surface studded with rounded protuberances have the protuberances 3 of hemispherical form with the centres located approximately in the rear surface of the sheet. These protuberances are closely arranged in parallel rows in two directions at right-angles. The ratio of the thickness of the glass sheet and the radius of the hemispherical protuberances is between unity and two to one. Between these protuberances smaller protuberances of similar form may be placed. Re. flectors of this construction may be used in advertising or similar signs.