baber/WOPTO huggingface dataset:
Patent GB-384497-A (GB)
Title: Improvements in or relating to machines for trimming and cutting lawns and the like
IPC: A01D34/84
Filed: 1932-03-01
Abstract: 384,497. Lawn mowers and trimmers. JENNINGS, L. H., Moorings, Willow Avenue, Denham, Buckinghamshire. March 1, 1932, No. 6244. [Class 6 (ii).] A machine for trimming lawns and the like comprises a wheel having a disc fitting against it, a handle connected to the wheel axle and the disc, a transverse horizontal sole-plate with an offset part, and a rotary cutter coacting with the offset part, with or without another rotary cutter coacting with the other part of the soleplate to cut the margin of the lawn. The internally-toothed driving and travelling wheel 1 engages with a pinion 10 on the shaft 11 of the rotary cutter 2, the shaft 11 being carried by an eccentric bearing on the stationary disc 12 which is secured to the operating handle 3 and carries the wheel axle 13. The handle 3 is connected to the wheel axle 13 by a strap 16 and carries a slotted bar 19 on which a laterally projecting supporting roller is adjustably mounted. The sole-plate 8 is extended rearwardly by semi-circular and semi-conical guard plates 21, 22, a vertical guard plate 23 being removably attached to the guard plate 22. The sole-plate 8 is bent as shown and adjustably connected to the disc 12 and guard plate 23, the outer part 28 forming a supporting skid. The offset part 7 may be at right-angles to the part 8. The cutter 2 is adjustably mounted on the spindle 11 which may also carry a cutter 31 to coact with the horizontal part of the soleplate 8. All the cutter blades are overhung with their cutting-edges inclined to the axis of rotation. They may be made from triangular sheets of metal one corner of each of which is bent and connected to a carrying spider. They may be dished or corrugated. A cutter may be formed from a metal disc by cutting out sections 33, Fig. 5, making radial cuts 35, and bending triangular pieces outwardly about lines 38.
Patent GB-642200-A (GB)
Title: Improvements in, or relating to, induction furnaces
IPC: H05B6/20
Filed: 1948-02-28
Abstract: 642,200. Induction furnaces. BIRLEC, Ltd. Feb. 28, 1948, No. 6253. Convention date, Dec. 5, 1945. [Class 39(iii)] In a stationary submerged resistor type furnace for melting metal having a hearth 2 connected to two or more inductor units each with metal-containing passages 7, 8 forming a secondary loop threaded by a primary consisting of coil 10 wound on a laminated iron core 9 and surrounded by refractory material 11, an internal refractory wall 15 is provided on the hearth between the inductor units 4a, 4b so that if one unit is emptied of metal prior to removal, the other section and the hearth above it remain charged with molten metal to the level of the top 16 of the wall 15. Each inductor unit has a removable plug 12 with a clay filling 13 for emptying the molten metal. The hearth 2 and the units comprise refractory lined casings, and the units are detached by loosening bolts 14a connecting them to the hearths. Gaps 20 between the hearth and the units are filled with refractory cement. The passages 7, 8 of the secondary loop are straight. One inductor unit thus remains in use while the other is replaced. Specifications 571,304, 575,780, 599,439 and 642,199 are referred to.
Patent GB-230488-A (GB)
Title: Improvements in or relating to electromagnetic clutches, brakes and the like
IPC: F16D27/06
Filed: 1925-03-07
Abstract: 230,488. Payne, C. Q. March 7, 1924, [Convention date]. Clutches, friction. - In electromagnetic clutches, brakes, and like devices for transmitting and arresting rotary motion, the grip is increased by causing local condensation of the lines of force along the edges of intersecting grooves in the pole faces. As applied to a clutch, the armature faces the pole faces C, D, Fig. 3, have intersecting grooves and the armature faces E, F, Fig. 4, have radial grooves so spaced as to be capable of registering with the intersections of the pole face grooves, but this arrangement may be reversed. As shown in Fig. 7, two or more magnets 0, P and one or more intermediate discs T may be employed. The disc T, having both faces grooved, is splined to a hub U fast on the shaft G<1>, being held by a spring W against a shoulder V. The magnet P is slidably connected to the magnet 0, carrying a gear wheel or mounted on a shaft, by bushed bolts R, which are provided with springs S and may be of non- magnetic material. The pole pieces and armatures are preferably of soft iron electrolytically coated with a thin wearing face of chromium manganese, or other harder but less magnetic metal. The grooves may be filled with graphite or other lubricant. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a reference to electromagnetic chucks, states that radial grooves may be used both on the pole and armature faces, and refers to U.S. Specification 558,630. This subject-matter does not appear in the Specification as accepted.
Patent GB-731821-A (GB)
Title: Improvements in or relating to heaters for motor vehicles
Inventor: MERRITT HENRY EDWARD
IPC: B60H1/12
Filed: 1952-03-11
Abstract: 731,821. Ventilating vehicles. HUMBER, Ltd., and MILLER, A. C. May 22, 1953 [March 11, 1952; April 25, 1952], Nos. 6332/52 and 10527/52. Class 137. [Also in Group XIII] Relates to a heating and ventilation arrangement for motor vehicles in which fresh unheated air or air heated by engine coolant in a heat exchanger or a mixture thereof is supplied to the vehicle space. According to the invention the heated air is heated in a chamber 10 containing the heat exchanger 12 and having an inlet 18 for cold air leading to the heat exchanger, a U-shaped cold-air duct 14 embracing the chamber and having outlets from its two arms respectively leading by way of outlet conduits 22, 23, to the vehicle space, openings 24, 25 for hot air leading from the chamber to the two arms and valve means for controlling the flow of hot and cold air through said outlet conduits. In Fig. 1 cold air enters the duct 14 through a scoop 16 above the vehicle bonnet. Valves 26, 27, 28 and 29 are provided in the duct, the valves 26, 27 controlling the flow of hot air through openings, 24, 25 of the chamber 10, also the proportion of cold air mixed therewith. The set of valves in each arm of the duct 14 is separately controlled by a manually-operated lever whereby air is permitted to flow to either the vicinity of the windscreen or to the vehicle body or to both. In the positions shown for the valves, no air is permitted to flow to the vehicle space and the arrangement is such that the valve 28 (or 29) is opened first permitting cold air to flow to the vehicle space. Further move. ment of the control lever then gradually opens the hot air valve so that firstly a mixture of hot and cold air and then hot air only flows to the vehicle space. In the arrangement shown in Fig. 8 the cold air is admitted to the duct 14 by a single butterfly valve 50 in the inlet duct 15 which valve is actuated by a thermal element 52 located on the downstream side of the heat exchanger 12, an over-riding manual control being provided. The arrangement is such that if the heated air passing to the vehicle space falls below the required temperature determined by the setting of valves 26, 27, then the thermal element operates to actuate the valve 50 to reduce the amount of cold air passing through the inlet duct 15. In this arrangement a recirculation duct 66 may be provided having an outlet from the vehicle space controlled by a valve 68.
Patent GB-676362-A (GB)
Title: Improvements in or relating to draught devices for agricultural implements
IPC: A01B23/04
Filed: 1949-03-08
Abstract: 676,362. Agricultural implements. KENT, F. E. March 8, 1950 [March 8, 1949], No, 6357/49. Class 6(i) A draught device for attaching implements to a tractor comprises a wheeled frame 13 having two outer sections 31 pivotally mounted on the sides of the frame 13 and each provided with a skid 36 or a wheel, The tractor is connected to a coupling 28 and the implements such as harrows and ploughs are attached by chains 39 to shackles 38. Inflatable or solid tyres are provided on the wheels 21. When not in use the end sections may be folded flat on top of the frame 13.
Patent GB-179016-A (GB)
Title: Inverted voice current transmission
IPC: H04K1/04
Filed: 1921-02-25
Abstract: 179,016. Western Electric Co., Ltd., (Western Electric Co., Inc.). Feb. 25, 1921. Telephone systems.-Speech is transmitted in an unintelligible form by inverting the speech frequencies, that is to say, if S is the speech frequency at a given moment a frequency K-S is transmitted, where K is a frequency such as 2200 above the limit of what is essential for clear articulation. This is effected by using the speech currents to modulate a current of frequency K, thus obtaining currents of frequencies K + S and F - S, and suppressing the currents K + S by means of a filter. At the receiving station the inverted currents are re-inverted and rendered intelligible by similar means. Current of frequency K from a source 8, Fig. 1, is modu. lated by speech currents in a modulator 5 of the two-valve kind described in Specification 151,928, [Class 40 (v), Wireless signalling &c.], (which gives pure modulated currents K + S and K - S free from currents K or S), and the lower band of modulated currents K - S is passed,through a filter 16, of the kind described in Specification 142,115, into the line L. Incoming currents from the line L are amplified by a valve 18 and modulate current from the source 8 in a modulator 24, the lower band of modulated currents being passed through a filter 26 to the receiver 27. The invention is applicable to wireless systems.
Patent GB-1028541-A (GB)
Title: Gauging arrangement for monitoring ribbon thread thickness
IPC: B65H63/06
Filed: 1963-02-18
Abstract: 1,028,541. Feeding webs. UNITED ELASTIC CORPORATION. Feb. 18, 1963 [March 20, 1962], No. 6474/63. Heading B6B. [Also in Division G1] Ribbon 1 which may pass between guiding rolls on to drums and backwind on to spools or cartons is tested by a device for detecting a thick portion on the ribbon 1 and comprises jaws 2, 3 connected by elongated members 11 to the screw-thread of a micrometer 4. Members 11 slide in a slot between two members 12. The jaws are set to a distance only slightly greater than the desired thickness of the ribbon 1, so that a thick portion of ribbon passing between the jaws 2, 3 will cause the device to pivot as shown by arrow 13 about the point at which it is fixed to a winding machine 6. This causes a lever 7 to move and release the plunger 9 of a microswitch 10. Opening of the switch stops the winding machine and an operator can remove the faulty portion of ribbon.
Patent GB-471433-A (GB)
Title: Improvements in or relating to the manufacture of safety fuze
IPC: C06C5/00
Filed: 1936-03-03
Abstract: A partly manufactured safety fuze is treated with a cementing and impregnating composition consisting of 7 parts of glycol cellulose, 93 parts of sodium hydroxide solution of 7\ba1/2\be per cent concentration, 0,07 parts of a dispersing agent known under the registered Trade Mark "Perminal" and 56 parts of china clay. According to a modification, 7 parts of the glycol cellulose are mixed with 93 parts of 7\ba1/2\be per cent caustic soda solution and chilled to -8 DEG  C. with stirring until crystals of ice appear, after which the mass is allowed to warm up sufficiently to become homogeneous and 56 parts of china clay mixed therewith to form the varnish.  Specifications 26893/98, [Class 9], 389,534, 410,152, and 410,153 are referred to.
Patent GB-1023767-A (GB)
Title: Drawing desk
IPC: B43L13/02
Filed: 1964-02-17
Abstract: 1,023,767. Draughting machines. A. ROCCATI. Feb. 17, 1964 [Oct. 3, 1963], No. 6482/64. Heading G1X. A drawing desk is characterized in that the work plane is constituted by an endless belt 7 carrying the drawing paper sheet and running on parallel rollers 8, 9, a hard grip device 21 carrying rulers 12, 13 being constrained to move parallel to the rollers on a shaft 14 and guide bar 10. The belt 7 is preferably a sheet of plastics material with its ends joined by a perforated rubber strip 20. The belt is moved by rotation of a sleeve 19 keyed to the shaft 14 which is of square section, which in turn rotates the roller 8 by way of pulleys 15, 17. The rules 12, 13 are supported above the drawing paper by a resilient support 11 mounted on a slide on the bar 10. Pressure on the head grip 21 then brings the rules into contact with the paper, and a board is mounted directly behind the belt to support the belt and provide a suitable drawing surface. The desk may be mounted on legs, so that when placed on a plane surface it is inclined to the horizontal or the desk may be made floor-standing.
Patent GB-1514696-A (GB)
Title: Method of and electrical connector for terminating a wire
IPC: H01R4/24
Filed: 1977-02-17
Abstract: 1514696 Electric connectors AMP Inc 17 Feb 1977 [17 March 1976] 06616/77 Heading H2E A magnet wire 22 is terminated against an internal wall 20 of a tubular housing 2 by inserting an electrical contact 4 having at least three sides 38, 40, 44 into the housing 2 until one 40 of the sides is arrested by an internal abutment 16, 30 within the housing 2 whereupon continued advancement of one 38 of the other sides of the contact 4 causes the one side 40 to be forced against the housing wall 20 to trap the wire 22 thereagainst. The abutment may be defined by an end wall 16 of the housing 2 or by a blind groove 30 in the housing 2 which receives a retention lance 52 on a flange 50 of the contact 4.
Patent GB-525784-A (GB)
Title: New or improved method of preparing meat packed in sealed containers
IPC: B65B25/06
Filed: 1939-03-01
Abstract: 525,784. Preserving food. VICKERS, H. March 1, 1939, No. 6644. [Class 49] In preparing meat or fish packed in sealed containers in which discrete portions of different kinds of the material are placed in juxtaposition in a container which is then heated to the temperature necessary for processing whereby the separate pieces or slices are united to a coherent body, the container being sealed before during or after the processing, a temporary partition or partitions are arranged in the container to provide compartments into which the portions of the meat or fish are packed, these partitions being withdrawn before or during the processing. The partitions may be made of thin sheet metal or of cellulose esters or synthetic resin and may consist of a single member, e.g. of cylindrical form which may be arranged in a cylindrical container. They may be arranged to divide the container into equal or unequal compartments. Specifications 341,760, 377,766, 435,373, 442,644 and 495,206 are referred to.
Patent GB-565042-A (GB)
Title: Improvements relating to machines for sub-dividing blocks of glue and other materials into small pieces
IPC: C09H9/04
Filed: 1943-04-27
Abstract: 565,042. Cutting glue &c. into cubes. SHEPPY GLUE & CHEMICAL WORKS, Ltd., and WEINER, A. April 27, 1943, No. 6648. [Class 5 (i)] Glue and like colloids to be cut into small cubes are forced by a plunger 2 through a guide 1 against intersecting blades 13, 14, the emerging prisms being transversely severed by knives 28 on a chain 24. Adhering pieces are thereafter separated by a helical rotor, as described in Specification 539,634. The blades 13, 14 are mounted at right angles to each other in a frame 12, held by transverse pins at each end and adjusted by set-screws 18. The passage through the frame flares slightly from the end of the guide 1. Joint operation of the plunger 2 and chain 24 is effected from a motor 7 through a lay-shaft 10 and chain-and-sprocket gears to the crankshaft 4 and one of the chain wheels 22. The three parts of wheels 22 are mounted in brackets secured to the frame 12, and one pair is adjustable for chain-tensioning purposes by means of nuts 23. Two dividing devices may be mounted side by side, the cranks on the shaft 4 being set at 180 degrees for alternate operation.
Patent GB-719411-A (GB)
Title: Improvements in or relating to boxes or cartons
Inventor: FELLOWS JOHN
IPC: B65D5/355
Filed: 1952-03-15
Abstract: 719,411. Cartons. BIRMINGHAM BOX CO. Ltd. March 13, 1953, [March 15, 1952.] No. 6771/52. Class 18. The sides of a carton are arranged to open outwardly from a normal position, the opening being limited by corner flaps joining the sides. The corner flaps comprise elements 16, enclosed between doubled-over walls 23, 24, which abut the folds 20 when the sides are in their expanded position. In the normal position the edges 12, 13 of the sides abut, portions 14 of the flaps being enclosed by the doubled-over walls. The walls 23, 24 are held folded by tabs 26 engaging extentions 25. The sides may all be double walled or be inclined outwardly or inwardly in their normal position. The carton may have a lid which may be integral with one side and tuck into a slit in an opposite side. It may have more than four sides. It may form a drawer of a drawer-andshell container.
Patent GB-1470647-A (GB)
Title: Cooling device
IPC: F25D3/10
Filed: 1976-02-20
Abstract: 1470647 Refrigeration PHILIPS GLOEILAMPENFABRIEKEN NV 20 Feb 1976 [24 Feb 1975] 06784/76 Heading F4H A cooling device for lowering the temperature in a sealed chamber, e.g. a Dewar vessel 1 containing liquid hydrogen, comprises a heat exchanger 12, a flow restrictor 13 and a cooling element 3 connected in series between inlet and outlet ducts 4, 5 for a cooling medium, the heat exchanger 12 being in heat-exchanging relationship with the element 3 and being thermally insulated from the interior of the chamber. As shown, the inlet and outlet ducts of a pair of Dewar vessels communicate with ducts 6, 7 of a circuit which includes a pump 11 and a heat exchanger 8 associated with the cold head 9 of a  cold-gas refrigerator 10. The pump 11 circulates liquid hydrogen through the circuit at a pressure greater than atmospheric. The heat exchanger 12 is in thermal communication with the cooling element 3 through a copper block 14 and is insulated from the vapour space 2b in the vessel by a layer 15 of thermal insulation. In normal operation, liquid hydrogen passes through the heat exchanger 12 where it is cooled by the element 3 before passing through the restrictor 13. If the vacuum jacket of the vessel starts to leak, the resultant temperature rise in the vessel causes evaporation of the liquid hydrogen in the heat exchanger 12 and the restrictor 13 substantially prevents the flow of hydrogen gas. In a modification, Fig. 3 (not shown), a further heat exchanger is provided in the vapour space 2b between the heat exchanger 12 and the restrictor.
Patent GB-926200-A (GB)
Title: Improvements in electric switches
Inventor: FEHRENBACH ALFRED
IPC: H01H71/02
Filed: 1961-02-24
Abstract: 926,200. Electrically - tripped switches. LICENTIA PATENT - VERWALTUNGSG.m.b.H. Feb. 24, 1961, No. 6963/61. Class 38 (5). A switch having electromagnetic and thermal tripping comprises a base 1 integral with a partition 2 which, with a cover 5, forms arc chambers 6 containing fixed contacts 20 cooperating with a movable bridge 19. The greater part of the partition 2 has a groove 3 containing the operating mechanism, the remaining part having auxiliary partition walls with slots for guiding the bridge 19, Figs. 2 and 4 (not shown), and a recess containing a trip coil 21, the whole operating mechanism being isolated from the arc chambers 6. The bridge 19 is connected through a member 18 to a bridge 12 pivoted at 13 to a push-button 14 and retained against the bias of a spring 11 by a latch 15 pivoted at 16 and having a return spring (not shown). Bridge 19 also has a hook 28 co-operating with a hook 27 carried by a plunger 22 having a return spring (not shown) and a rod 23 engageable with one arm 24 of a bell-crank lever which is pivoted at 25 and whose other arm 26 is engageable with the latch 15. The arm 24 is also engageable with a bi-metal strip 29 electrically in series with the coil 21. Upon short circuit the plunger 22 is depressed to rotate, through members 23, 24, 26, the latch 15 and so release the bridge 12, subsequent engagement of hooks 27, 28 opening the contacts 19, 20. Upon overload the bi-metal 29 deflects to rotate the latch 15 and release the bridge 12, the spring 11 opening contacts 19, 20 in this case. The button 14 is guided in stops 17 located in a recess formed in the walls of the groove 3, Figs. 7 and 8 (not shown), these stops acting as packing between the arc chambers and the groove. If desired, the button may slide in a recess stamped in the partition 2 and be secured against turning by its shape, the stops being omitted in this case. The contacts 20 have arrester horns 32 and the bridge 19 may have rectilinear or curved motion and, if desired, move in a slot in the partition 2. The coil 21 exerts a blow-out effect on the arcs.
Patent GB-609129-A (GB)
Title: Improved carbon pile electrical regulator
IPC: H02P9/22
Filed: 1946-03-06
Abstract: 609,129. Automatic control systems for generator voltage. CONSTANTINE, W. W. (General Motors Corporation). March 6, 1946, No. 6982. [Class 38 (iv)] An electromagnetically-operated carbon pile regulator for maintaining the terminal voltage of an electric generator constant by automatic field regulation is compensated for weakening of the electromagnets due to increase in tem-  perature of the coil by the provision of springs acting to oppose the pull on the armature of the electromagnet and arranged to be heated by the pile with consequent loss of compressive strength. In the form shown, the carbon pile 39 is housed in a refractory insulating tube 40 surrounded by cooling fins 14 and is compressed between an adjusting screw 56 and a leafspring assembly 28 which is opposed by the magnet 24, 25. The springs act through a mica disc 31 and a thin strut 35 to limit the rate of heat flow from the pile and the spring leaves 28 bear against a copper ring 41 to conduct heat away. A flexible metal seal 84 serves to exclude dust even when the refractory tube 40 expands more than the radiator 14, by virtue of an internal flange 91 which bears against the refractory tube. The magnet assembly is clamped to a base-plate by a metal strip and is bolted to the far end of the radiator by bolts 42 which permit of the expansion of the radiator inwardly against the flexible flange. A fixed and variable resistance are also provided on the same base-plate, the variable resistance being operated by a knurled knob 72.
Patent GB-124094-A (GB)
Title: Improvements in and relating to Spring Frames for Motor Cycles.
IPC: B62K25/28
Filed: 1918-04-25
Abstract: 124,094. Coventry Acme Motor Co., and Robb, W. J. April 25, 1918. Spring devices.-A power transmission mechanism for use with the spring frames of motor-cycles comprises gearing between the engine i and a gear-box j, gearing between the gearbox and a frame countershaft independent of the gear-box, and a third set of gearing between the frame countershaft and the road wheel. As shown, the countershaft is arranged coaxially with the axis of movement of wheel-carrying arms g controlled by springs h. The horizontal base part of the main frame may be of elongated U form with the engine located between the limbs. The gear-box may be horizontally adjustable upon a bracket l which in turn is vertically adjustable upon a plate k upon the engine, and these adjustments provide means for tensioning the chains m, n; or the engine may be horiontally adjustable in the main frame. The lug f may be arranged to carry the thick end of a laminated spring shackled at its rear end to the pivoted arm g, or the wheel-carrying parts may be in the form of triangular frames controlled by a spring device conveniently in the vicinity of the seat lug c. According to the Provisional Specification, at the countershaft the wheels for the chains n, p and the bushes for the pivot ends of the arms g may be mounted upon a fixed bolt provided with out. side tightening-nuts, the ends of the main-frame stays, into which the bushes are screwed or riveted, being cranked inwardly so that the bearings of the arms shall not project materially.