baber/WOPTO huggingface dataset:
Patent GB-391332-A (GB)
Title: Improvements in or relating to controlling means for gear brakes and gear clutches, more particularly for excavators and cranes
IPC: B66D1/14
Filed: 1932-06-17
Abstract: 391,332. Brakes ; clutches ; winding and paying-out apparatus. ORENSTEIN & KOPPEL AKT.-GES., 23, Templehofer Ufer, Berlin. June 17, 1932, No. 17210. Convention date, June 17, 1931. [Class 103 (i).] To enable the force applied to brakes and clutches, particularly such for excavators, dredgers or cranes, to be regulated as desired, direct application of force to the brake or clutch by hand or foot pressure is combined with fluid pressure application in such a way that the directly applied force can be added to or subtracted from the force applied by fluid pressure. In one arrangement, Fig. 2, direct pressure is applied to the brake of the winding drum m of an excavator &c. by a lever a and fluid pressure by a cylinder e controlled by a valve d actuated by a pedal c. If, for example, the maximum pressure that can be applied by the hand-lever a is half that applied by the cylinder e, it is possible by suitably combining the hand and fluid pressure and by using either alone to obtain a resultant pressure on the brake varying from zero up to three times the maximum hand pressure. The fluid pressure valve may be controlled by an auxiliary hand-lever pivoted on the main lever and an additional cylinder controlled by a pedal-operated valve may be provided.
Patent GB-496297-A (GB)
Title: Improvements in or relating to pressure reducing valves
IPC: G05D16/10
Filed: 1937-06-21
Abstract: 496,297. Fluid - actuated pressure - reducing valves. WHITEHEAD TORPEDO CO., Ltd., and JONES, L. June 21, 1937, No. 17297. [Class 135] In a pressure-reducing valve for aerial torpedoes, operating under control of the pressure fluid, the pressure of which is to be reduced &c. and comprising a spring actuated piston opposing the pressure, a predetermined load is applied to the spring at the end remote from the piston by fluid pressure acting on a plunger in operative connection therewith and movement of the plunger is limited by stops the position of which may be varied. Air &c. under pressure passes from an inlet 6 to an outlet 7 past a valve 1 integral with a piston 3 which is urged upwards against the inlet pressure by a spring 11 in a casing 13. The spring abuts against an arm 15 slidable in slots in the casing and the curved under-surface of the arm engages a plunger. 18 adapted to bo raised by oil &c. under pressure supplied to a space 21 beneath the plunger when a delayaction cam 24 actuates a control valve 22. The plunger raises the arm 15, putting the spring 11 under compression, until it engages adjustable stops 29 on a sleeve 25 rotatable about the casing 13 to bring stops of different heights into alignment with the arm 15. Specifications 278,182, [Class 135], and 496,296 are referred to.
Patent GB-111696-A (GB)
Title: Improvements in and relating to Lock Nuts.
Inventor: FRANCE ARTHUR GRAHAM
IPC: F16B39/282
Filed: 1916-12-02
Abstract: 111,696. France, A. G. Dec. 2, 1916. Locking nuts.-A nut has in combination the following features :-The lower face is recessed at b, the ends of the recess being at rightangles to the face and the top inclined so that a ball contained in the recess moves towards the shallow end when the nut unscrews, and the bottom edges of the sides of the recess are turned inwards to prevent the ball leaving the recess when the uut is removed.
Patent GB-220936-A (GB)
Title: A process for separating hafnium and zirconium
IPC: C01G27/00
Filed: 1924-07-18
Abstract: Hafnium and zirconium are separated by fractional crystallization of the simple or complex oxalates.  Thus, zirconium hydroxide is dissolved in an excess of oxalic acid and the solution crystallized, or an excess of oxalic acid may be added to a solution of a zirconium salt, or ammonium oxalate may be added to a solution of the oxyhalogenides, nitrates, &c.  In an example, a solution of the sulphates is precipitated with ammonium hydroxide, and oxalic acid added to dissolve the hydroxides, the resulting solution being then subjected to fractional crystallization.
Patent GB-1300280-A (GB)
Title: Improvements in or relating to sliders for sliding clasp fasteners
Inventor: FROHLICH ALFONS
IPC: A44B19/26
Filed: 1970-04-13
Abstract: 1300280 Sliding clasp fasteners OPTIHOLDING AG 13 April 1970 [22 April 1969] 17406/70 Heading E2S A thermoplastics slider comprises top and bottom plates 1, 2 with guide tracks 3 for the rows of interlocking elements (not shown), a core 4 and lateral boundary flanges 5, the said guide tracks being reinforced by hollow (or solid) pins 6 of metal or hard plastics material to impart resistance to high pressures exerted on the slider.
Patent GB-1311890-A (GB)
Title: Mobile crane
IPC: B66C13/18
Filed: 1970-04-13
Abstract: 1311890 Mobile crane ORENSTEIN & KOPPEL AG 13 April 1970 [18 April 1969] 17442/70 Headings B8B and B8H A mobile crane comprises a base frame 6 rotatably mounted on a vehicle chassis 4, a telescopic jib 14 pivotally connected at 13 to a boom 9 which is pivotally connected at 8 to the base frame 6, a link 15 in the form of an hydraulic ram pivotally interconnected between the jib 14 and base frame 6, and a second hydraulic ram 10 pivotally interconnected at 11 and 12 to the base frame 6 and boom 9 respectively, the jib 14 being raised from an initial inoperative position to the positions shown as I, II, III on operation of both the rams 10, 15. The effect of the member 15 may be varied by providing alternative positions (16(a)-16(c)) on the base frame 6, Fig. 3 (not shown).
Patent GB-612964-A (GB)
Title: Improvements in children's cots of the drop side type
IPC: A47D7/02
Filed: 1946-06-11
Abstract: 612,964. Drop-side cots. G. A. L. ACCESSORIES, Ltd., and HARLEY, G. A. June 11, 1946. No. 17503. [Class 52 (ii)] In a drop-side cot the guide rods 4 for the movable side 3 are rigidly secured at their upper ends to the cot framing and the lower parts of the rods are positioned by brackets 6 with opposed slots 7 from which the rod can be sprung to enable the side 3 to be completely detached if desired. The rods 4 may carry tiltable catches 10 on which the movable side is hung.
Patent GB-239975-A (GB)
Title: Improvements in and connected with writing and like cases
IPC: A45C11/36
Filed: 1924-07-22
Abstract: 239,975. Zimmerman, T. J., and Shaw & Co., Ltd., A. W. July 22, 1924. Block and sheet holders-A writing, sketching, or like case or holder comprises a block a of sheets and a container b to receive the finished sheets, the block and the container each being provided with a transparent cover a<1>, b<2> so that the top sheet of each can be inspected; the finished sheets are transferred to a shallow case d having a transparent hinged lid d'. The two parts a, b are hinged to a rigid backing c, and the edge of the block a adjacent to the backing c is provided with an inclined strip a<3>, which serves to facilitate the transfer of a sheet from the block to the container and forms a stop to prevent the sheets from slipping back; the container may also be provided with a stop at its hinged edge. The covers are fastened by clips and may be slid into position instead of being hinged. The cover b<2> may consist of one part fixed to the container and a second part hinged thereto. The backing c is made of such a width that the transfer case d, which is of the same size as the container and the block, may be inserted between the block and the container when closed together. The parts a, b may be hinged together without the backing c and are then folded back to back.
Patent GB-404976-A (GB)
Title: Improvements in and relating to wrapping machines
IPC: B65B25/16
Filed: 1932-06-21
Abstract: 404,976. Slicing bread &c. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (American Machine & Foundry Co. ; 511, 5th Avenue, New York, U.S.A.) June 21, 1932, No. 17581. [Class 5 (i).] Loaves L, Fig. 1, are fed along a feed table 39 by pusher bars 47 on endless chains 49, and arrive on a plate 57, then in its lower position. The plate raises the loaf to the position shown, level with the table 83 of a slicing apparatus, through which it is forced by a pusher 66. The blades 86 of the slicing apparatus are arranged alternately in two separate frames so that the cutting edges of one series enter the loaf shortly after the rear edges of the other series. In this manner the side pressure on each blade is sustained by the thickness of two slices. The blades are tensioned by levers 90, and the frames are actuated by eccentrics 93, 94. The entire slicing apparatus may be laterally withdrawn from the machine to an inoperative position on guide rods 101, a bridge being interposed to take the place of the table 83. A safety switch prevents the starting of the slicer motor when the apparatus has been withdrawn. From the slicing mechanism, the loaf passes to a wrapping mechanism. Specifications 405,344 and 406,373 are referred to.
Patent GB-1397792-A (GB)
Title: Antifreeze
IPC: C09K5/20
Filed: 1972-04-17
Abstract: 1397792 Anti-freeze compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 5 April 1973 [17 April 1972] 17584/72 Heading C4X An anti-freeze composition comprises a glycol, a first corrosion-inhibitor selected from cyclohexylamine phosphate and hexamethylene diamine phosphate and a second corrosioninhibitor selected from alkali metal nitrates, nitrites and carboxylates. Further inhibitors may be present, e.g. a copper-complexing agent such as benzotriazole or sodium mercaptobenzothiazole, and/or an alkali metal borate. The composition may also contain an antifoaming agent, e.g. dimethyl silicone and a dye. The. alkali metal carboxylate may be an alkanoate, naphthenate or benzoate. The cyclohexylamine phosphate or hexamethylene diamine phosphate may be formed in situ in the glycol and may amount to 0À1-5% by wt. thereof. The second inhibitor may amount to 0À01-5% by wt. of the glycol. A preferred composition comprises the glycol (ethylene or propylene glycol), the phosphate, borax, benzotriazole, and sodium nitrate, nitrite and benzoate.
Patent GB-555262-A (GB)
Title: Improvements in or relating to gun mountings
IPC: F41A27/08
Filed: 1940-12-14
Abstract: 555,262. Machine gun mountings. RICE, E. A. B., ROSE, A. G., CURTIS, S., and ROSE BROS. GAINSBOROUGH), Ltd. Dec. 14, 1940, No. 17683. [Classes 92 (i) and 92 (ii)] Relates to mountings for wo or more machine guns pivotally supported for simulaneous operation in elevation and training. According to the invention, the axes of elevation and training are so disposed that the recoil forces produce no tendency to turn when the guns are fired. In the form shown, two guns 31 of the gas-operated type are mounted for simultaneous vation on a common trunnion pin 24 the ends of which support frames 27 in which the guns are individually pivoted on axes 36 for simultaneous training through the agency of a cross connecting link 32. The training axis 36 of each gun intersects the elevation axis at a point 37 situated on the resultant line of gun recoil so that there is no tendency to turn about either axis when the guns fire. As shown, the point 37 is chosen for each gun approximately midway between the axes 38, 39 of the gun barrel and gas cylinder. If recoil-operated guns are mounted the the points 37 are on the barrel axes 38. Fig. 4 shows a mounting for four inclined and interconnected gas-operated guns with elevation axes 67 and training axes 66. Bowden wires connect the triggerlevers 92 of the upper and'lower guns, the arrangement being such that the lower guns fire slightly before the upper guns. Specifications 542,084, 553,267 and 555,261 are referred to.
Patent GB-502311-A (GB)
Title: Improvements in clothes pins
IPC: D06F55/00
Filed: 1938-06-14
Abstract: 502,311. Clothes pegs. WAREING, J. June 14, 1938, No. 17699. [Class 44] A spring clip for use as a clothes peg comprises a pair of side-by-side limbs 2, 3 integral with a connecting loop 1 and having oppositely directed bowed portions 6; 7 in planes at right-angles to the plane of loop 1, the centres of parts 6, 7 being out of register in the direction of the length of the limbs 2, 3.
Patent GB-991636-A (GB)
Title: Logarithmic converter
IPC: H03H7/24
Filed: 1962-05-08
Abstract: 991, 636. Voltage measurement. HOUSTON INSTRUMENT CORPORATION. May 8,1962 [May 12, 1961; April 27, 1962], No. 17723/62. Heading G1U. [Also in Division G4] In an arrangement for making a precise measurement of an A.C. voltage E 1 , the voltage is supplied to a logarithmic alternator including two autotransformers and a linearly tapped potentiometer P<SP>1</SP> (see Division G4). The voltage tapped from the attenuator is fed via an amplifier 33 to a heater wire 34, producing a voltage across a thermocouple 35 related to the input voltage. A reference D.C. source 37 is used to heat a thermocouple 43 in the same way. The difference in voltage outputs between the thermocouples is fed through a chopper 38 and amplifier 39 to operate a servomotor 39, which repositions the wiper W<SP>1</SP> until a balance is found. The wiper position will then indicate the ratio between the A.C. input and the reference D.C., expressed in decibels.
Patent GB-669554-A (GB)
Title: Prismatic rear view mirror device
IPC: B60R1/08
Filed: 1948-07-01
Abstract: 669,554. Optical rettectors. LIBBEYOWENS-FORD GLASS CO. July 1, 1948 [Nov. 26, 1947], No. 17759/48. Class 97 (i). [Also in Group XXXII] A rear view mirror -comprises a support of prism form having front and rear supporting surfaces at an angle to each other, the portion of said support between said surfaces being transparent, semi - transparent substantially non-light absorptive mirror reflecting means on said front supporting surface forming a front mirror providing a first image for normal day or night driving, and other mirror reflecting means on said rear surface forming a rear mirror providing a second image by reflection through said front mirror reflecting means for normal day or night driving, the rear mirror reflecting means further co-operating with said front reflecting means to produce by internal reflection within the prism form and by reflection through said front mirror reflecting means a further image useful for night driving under abnormal glare conditions having an intensity of between 2.5 and 12 per cent of the incident light. The mirror comprises either a transparent prism C, Fig. 5, or two transparent plates, Fig. 15, positioned at an angle to each other in which the front face a is coated with a metallic oxide reflective coating such as titanium dioxide which has over 30 per cent reflectivity and is transparent and of substantially no light absorption and the rear face b is coated with a material such as silver or aluminium having a specular reflectivity of 50 to 90 per cent or coloured reflectors such as gold or copper or semi-transparent layers which are coloured by light interference effects. Alternatively, coloured prisms or plates may be used. The mirror, which is pivotally mounted, can be set to bring within the driver's focus the first; second and third or further images as shown by the lines R, S and T, I being the incident light and R the reflection from the face a having a reflectivity of over 30 per cent and in the reflections S and T the reflectivity is reduced by internal reflection to between 10 to 30 per cent and 4.5 to 12 per cent respectively. To reduce the effect of disturbing reflections occurring at the plain uncoated surfaces X, Fig. 15, such surfaces may be given a thin coating of calcium or magnesium fluoride. Various arrangements are described in which reflective coatings are applied to all or some of the faces of the angularly positioned plates and it may be arranged that the first image S produced by internal reflection from the surface b is of greater intensity than the intensity of the image R produced by the surface a. Specifications 632,5 7 0, 650,173, 652,851, 652,858 and 652,859 are referred to.
Patent GB-950544-A (GB)
Title: Bit end of tool for driving screw fasteners
IPC: C21D7/06
Filed: 1962-05-09
Abstract: 950,544. Making screwdrivers. REED & PRINCE MANUFACTURING CO. May 9, 1962 [Oct. 3, 1961; April 2, 1962], No. 17782/62. Heading B34. [Also in Division B4] The bit end of a screwdriver has a roughened surface produced by shot peening. As shown, the driving end of the shank 2 has four equally spaced vanes, the outer surfaces of which converge towards the tip. The side faces 8, 10 of each vane which are equally spaced respectively on opposite sides of a radius of the shank, are either parallel to each other or converge slightly towards the tip. After being shot peened, the side faces 8, 10 are scored with parallel lines 20, each of which preferably extends at approximately right angles to the axis of the shank 2 and which may extend entirely across or only partially across each side face. The entire bit end is then heated in a neutral salt in a gas fired pot furnace. Following the heat treatment the bit is again shot peened to increase the hardness of the outer surface. The first shot peening step and heat treating step may be omitted. Only some of the side faces of the tool bit may be treated.
Patent GB-1420301-A (GB)
Title: Document feed mechanism
IPC: B41J13/12
Filed: 1974-04-24
Abstract: 1420301 Automatic control INTERNATIONAL BUSINESS MACHINES CORP 24 April 1974 [25 May 1973] 17822/74 Heading G3N [Also in Division B6]  Control circuitry for document feed mechanism (see Division B6) comprises means to supply pulses to a stepping motor 75 to cause clockwise displacement for document feed or counter-clockwise displacement for lifting and retracting a platen and clamping device. A signal on line 150 indicates presence of a document and enables counterclockwise rotation of the motor 75 by a pulse to input CCW of direction logic 134. An oscillator 135 supplies drive pulses to the motor through the direction logic. When the passbook is held in place a high dwell pulse on line 157 resets latch 137 to stop the motor. When document feed is required a line feed signal starts counter 158 and sets latch 138. An output on line 147 displaces the motor counter-clockwise to release the document. Comparator 159 resets latch 138, setting latch 139 to generate pulses rotating the motor clockwise. The direction logic produces a sequence of pulses to windings 122-125 to rotate the motor shaft in the appropriate direction.
Patent GB-112770-A (GB)
Title: Improvements in Bumpers or Buffers for Automobiles and other Motor Vehicles.
IPC: B60R19/28
Filed: 1917-12-03
Abstract: 112,770. Stewart-Warner Speedometer Corporation, (Assignees of Duffy, T. I.) Jan. 15, 1917, [Convention date]. Obstruction-removers. - An obstruction-remover or guard for motor-vehicles comprises a transverse bar 12, Fig. 1, resiliently supported on the frame of the vehicle by means of leaf springs 25, each of which is formed with a curved central portion 26 connected to the bar 12 and with rear converging portions 27 terminating in parallel arms 28 adapted for attachment to brackets 14 on the vehicle frame. In order to adapt the bar 12 to frames of various widths, each spring 25 is clamped to the bar 12 by a fitting 30, Fig. 2, pressed against the spring by aT-headed bolt 47, which engages one pair of a series of holes 50 in the bar 12 and is adjusted by a nut 53 bearing against the fitting 30. The brackets 14 are adapted for attachment to frame members 10 of various widths by forming them with downwardly tapering pockets 19, Fig. 3, which are engaged by angular bolts 18 clamping the sides of the frame members 10 and secured in position by nuts 23 against an under-plat.e 22 which is slotted for the passage of one of the bolts 18. Vertical and longitudinal adjustability of the bar 12 are attained by attaching each pair of arms 28 to a bracket 14 by two bolts 34, 35, the rear bolt 35 serving as a pivot and passing through one of a series of longitudinally arranged holes 37 in the brackets 14, and the forward bolt 34 passing through transverse slots 38 in the bracket and also through longitudinal slots 39 in the arms 28. The vertical adjustability may be further increased by arranging the bracket 14 to seat on the frame member 10 by a three-point bearing comprising two enlargements or transverse ribs 17 and an adjustable screw-stud 16.
Patent GB-1269078-A (GB)
Title: Method and apparatus for electro-chemically machining rotating parts
Inventor: HAGGERTY WILLIAM ANDREW
IPC: B23H9/04
Filed: 1969-04-08
Abstract: 1,269,078. Electro-chemically machining rotating parts. CINCINNATI MILACRON Inc. April 8, 1969 [April 8, 1968], No. 17940/69. Heading C7B. A surface of revolution (shown as a bearing) is electro-chemically machined on a workpiece 15 by rotating the workpiece with the surface to be machined being urged against a pair of supporting elements (shown as shoes 41, 42) disposed on either side of an electro-chemical machining tool 10, the supporting elements serving to establish a working gap between the workpiece and the tool which decreases as the diameter of the workpiece is changed by machining. As shown, the tool is in a fixed position. The workpiece is rotated by and urged against shoes 40, 41 by means of a magnetic chuck (20) Fig.3 (not shown). The illustrated apparatus is similar to that of Specification 1, 269, 077 except for the relative positions of the tool and shoes. When machining using a constant voltage, the current is a measure of the gap and when using a constant current the voltage is. The initial and final gaps may be 0À006 inch and 0À0015 inch respectively. A ferrous workpiece may be machined using a NaNO 3  electrolyte. The electrolyte flows through the working gap and may be centrifuged, cooled and recirculated. The method may employ a substantially ripple free power supply (i.e. less than ¢% peak to peak voltage variation) first using 6000 amps/sq. in., then a value between 1500 and 3000 amps/sq. in., and finally terminating the current in less than 100 micro seconds. This aspect of the method forms the subject of Specification 1,269,079. In alternative apparatus, the shoes are replaced by rollers against which the workpiece is urged by a roller or belt type drive means which replaces the magnetic chuck. Instead of machining the exterior surface of a bearing, the method may be used to machine the inside surface of a bearing member.
Patent GB-173539-A (GB)
Title: Improved process and apparatus for conversion of secondary alcohols into ketones
IPC: C07C45/39
Filed: 1920-06-30
Abstract: 173,539. Hunt, S. B. June 30. 1920. Ketones.-In converting secondary alcohols into ketones by passing them in the vapour form and in admixture with oxygen over a heated catalyst, the temperature is controlled by introducmg the gaseous mixture into the reaction chamber 7 by a depending tube 4<a> and allowing it to ascend through the catalvtic material 16 surrounding the tube. For additional pre-heating of the entering gases, the tube 4a may be provided with an upward extension round which the hot products of the reaction flow before passing to a condenser. The reacting gases may be diluted with such inert gases as nitrogen or carbon dioxide; water also may be present in quantities up to 25 per cent. Copper or an alloy of zinc and copper, such as brass, is employed as catalytic material, either as such or as a coating upon pieces of iron. The reaction chamber, too, may be lined internally with copper or brass. The catalyst may he treated to give a surface layer of oxide. Specification 160,185 is referred to.