baber/WOPTO huggingface dataset:
Patent GB-1032713-A (GB)
Title: Drive mechanism
IPC: B23G1/22
Filed: 1963-12-16
Abstract: 1,032,713. Screwing machines. NATIONAL ACME CO. Dec. 16, 1963 [Dec. 17, 1962], No. 49582/63. Heading B3N. [Also in Divisions G3 and F2] A drive mechanism 11 comprises a rotary spindle 20 which may carry a screwing tool 36, a fluid-pressure differential piston 14 which rotatably supports the spindle for axially movement therewith, and a master screw-threaded member 33, rotatable by spindle 20 through gears 28-30, which member controls the axial feed rate of the spindle. The latter is driven by a motor 21 through a pulley 22 and a sleeve 23 keyed to the spindle at 25. The supply of fluid pressure to piston 14 is controlled by a valve 40 which includes a spool 42. A slide 53 is slidable on rods 54 fixed in valve housing 41, and a rod 55 fixed in the slide actuates spool 42 to move axially against a spring 50. A worm-wheel 59 is journalled in the slide and meshes with master screw-threaded member 33. Worm-wheel 59 is rotatable on a shaft 60 formed with a piston 61, and a conical surface 64 on the shaft is adapted to engage a similar surface 65 on the wormwheel so that the latter can be clamped against a fixed friction brake disc 66. In operation, spindle 20 is rotated along with member 33. Cones 64, 65 are disengaged and worm-wheel 59 rotates idly in shaft 60 and piston 14 is in the retracted position. Valve 70 is actuated to thus move shaft 60 so that cones 64, 65 are engaged and brake 66 clamps the worm-wheel against rotation. Each revolution of member 33 moves worm-wheel 59 and therefore slide 53 to the left, Fig. 2 (not shown), by one pitch distance. Spool 42 is moved to the left and pressure fluid is admitted to chamber 16 in cylinder 13. Fluid pressure is supplied to chamber 17 in this cylinder from a constant pressure source 69, and when the force in chamber 16 overcomes the force in chamber 17, piston 14 moves to the right. Member 33 and worm-wheel 59 are also carried to the right until the pressure flow is balanced, whereupon piston 14 is moved at a feed rate which is controlled by the master screw-threaded member 33.
Patent GB-1280845-A (GB)
Title: Wire suture wrapping instrument
Inventor: GREEN DAVID THOMAS
IPC: A61B17/32
Filed: 1969-10-09
Abstract: 1280845 Suturing instrument UNITED STATES SURGICAL CORP 9 Oct 1969 [11 Oct 1968] 49699/69. Heading A5R A surgical instrument comprises a gun and a cartridge portion (50) mounted thereon, the cartridge portion comprising a rail assembly including a pair of parallel anvil 52 with a knife guide 54 extending between and parallel thereto, a suture carrier slidable on the rails assembly including a plurality of wire sutures 148 ejectable by a pusher which drives the sutures against the anvils, and a knife 174, the gun including means to cause a tube held against the anvil to be sutured and severed by the knife when a trigger 14 (see Fig. 1) on the gun is operated. The gun includes a barrel 20 containing a rod 22 with a collar 24 attached to a rod 18 and biased by a spring 38, a sleeve 26 mounted on the rod being biased by spring 42. The suture carrier comprises two barrels 102, rotatable by a rachet plate 134, which carry sutures in slots on their peripheries. One end of a cam follower 128 is slidably located for transverse movement in plate 118 and also attached to the rachet plate 134, so that longitudinal movement of plate 118 results in transverse movement of rachet plate 134. In operation, the gun trigger is moved to cause rod 18 to move forwards and hence cause the cartridge portion to slide on the rail assembly to the position of Fig. 5. Further movement of the trigger causes rod 22 to move relative to barrel 26 against spring 42 and case the knife to move forwards while sutures 148 are driven against the anvils and wrapped around the tube by push rods 164. Collar 24 also engages and moves the cam plate 118 forward which in turn causes rachet plate 134 to move transversely. The tube is then sutured and severed. When the trigger is released the springs 42 and 38 drive the cartridge portion back along the rails to the position shown in Fig. 4. As the rachet plate 134 returns it engages teeth on barrels 102, rotating them to cause another set of sutures located thereon, to align with push rods 164 for the next operation. The cartridge portion is detachably lockable to the gun by means of a guard 82. The sutures (Figs. 6, 10, 11, not shown) have pointed forward ends (150) a rear end (154) defined by a right angle and a hump (152) adjacent the rear end. They are wrapped round the tube in a loop and compressed by the hump (152) being collapsed (Fig. 11).
Patent GB-1435020-A (GB)
Title: Motor vehicle headlamp
IPC: F21V17/00
Filed: 1973-10-25
Abstract: 1435020 Vehicle headlamps CIBIE PROJECTEURS 25 Oct 1973 [25 Oct 1972] 49802/73 Heading F4R A vehicle headlamp comprises a first light source 16 disposed in a main reflector 12 and a second light source 22 disposed in a second reflector 20, the second reflector being pivotally mounted inside the main reflector by means of a pivotal connection comprising co-operating curved abutment surfaces 28, 30 at least one of which is provided on each reflector. In the form shown the surface 28 is a semi-cylindrical projection on the reflector 20 and the surface 30 is a complementary semi-cylindrical recess in the reflector 12, the surfaces being held together by a peg 32 which extends radially from the projection 28 and carries a resilient head adapted to snap through an arcuate slot 34 in the recess 30. The inclination of the second reflector is adjusted by a screw 26, the reflectors being parabolic and the lamp being such that the dipped beam is obtained from the source 22 alone and the main beam from both sources together. In a modification (Figs. 4 and 5, not shown) the second reflector has a pair of partspherical projections seated in complementary recesses in the main reflector, and a peg extends from the second reflector midway between the projections and passes through an aperture in the wall of the main reflector, the end of the peg carrying a resilient clip which bears against the outer surface of the main reflector.
Patent GB-1112989-A (GB)
Title: Disk brake
IPC: F16D65/092
Filed: 1966-11-08
Abstract: 1,112,989. Disc brakes. KELSEY-HAYES CO. 8 Nov., 1966 [22 Nov., 1965], No. 49943/66. Heading F2E. In a disc brake of the floating caliper type comprising a caliper 25 which supports a pair of pads (30, 34, Fig. 2, not shown) and is mounted in a recess 21 between a pair of spaced arms 19 of a torque plate 17 carried by a stationary axle part 16, the means for mounting the caliper between the arms 19 consists of two bolts 26 which are screwed into the caliper and have unthreaded portions (27, Fig. 3, not shown) adapted to be received in slots 24, Fig. 4, provided in axially extending flange portions forming parts of an axially directed flange extending around the periphery of the torque plate, such that substantially universal movement of the caliper is permitted which enables the faces of the pads to align themselves with the respective disc faces. The caliper is bored to provide a cylinder containing a piston for applying one pad directly, the other pad being secured to the caliper on the opposite side of the disc. The backing plate of the directly applied pad has a flange 31 at each end which engages a pressedout lug 33 on each arm 19 of the torque plate to guide the pad for axial movement and at the same time locate it in the radial direction. Each of the bolts 26 carries a plate which covers the respective slot to prevent ingress of dirt. The disc (15, Fig. 2) is of the ventilated type having spaced walls (15a, 15b).
Patent GB-1531216-A (GB)
Title: Credit card
IPC: B32B15/08
Filed: 1975-11-19
Abstract: 1531216 Credit card EMI Ltd 19 Nov 1975 [20 Nov 1974] 50198/74 Heading B6A [Also in Division B5] A credit card comprises a non-magnetic support member and a magnetic recording medium affixed thereto which is a strip of magnetic, metallic material applied as an exposed layer. The strips (e.g. of stainless steel) may be bonded by means of a thermosetting adhesive or by hot foil-stamping to the support member, e.g. a laminate of layers of plastics materials. The strip may be coated with thermosetting adhesive and stuck into a recess in the credit card by the action of heat and pressure so that the outer surface of the strip is level with the surface of the card. The strip is an elongated, self-supporting piece of material which is produced distinctly and apart from the support member to which it is later affixed and does not include deposited layers of material.
Patent GB-1288046-A (GB)
IPC: F16H57/00
Filed: 1969-10-15
Abstract: 1288046 Inertia weight dampers RCA CORPORATION 15 Oct 1969 [23 Oct 1968] 50734/69 Heading F2S [Also in Divisions G4-G6] A tape transport mechanism with a friction tape drive includes a flywheel 16 having a central aperture 18 and mounted on a shaft 10 on which is fixed at least one hub 24, 26; the aperture 18 being a sliding fit on the shaft and between the or each shaft and the flywheel is sandwiched a resilient layer 28, 30 through which rotation is transmitted by friction from the shaft to the flywheel. The shaft 10 may be mounted in bearings 12, 14. The flywheel is stamped from sheet metal. The resilient layer may be attached to the flywheel with adhesive.
Patent GB-1310789-A (GB)
Title: Continuous casting plant
IPC: B22D11/128
Filed: 1971-11-01
Abstract: 1310789 Continuous casting SCHLOEMANN AG 1 Nov 1971 [2 Nov 1970] 50741/71 Addition to 1130449 Heading B3F Multistrand continuous casting apparatus includes several arcuate strand-guideways comprising removable sections, and alongside each guideway a coaxial arcuate track 7 with a single carriage 8 transferable to any one of the tracks, e.g. by crane, to run along the track and support a section of the associated guideway during removal or replacement. The carriage 8 has sidesupporting and load-supporting area 10 and 11. Hooks 30 at the front of the carriage engage a free axle 29 guided in the particular track 7 when the carriage is placed in position on the latter. Cables 14 passing over a pair of pulleys 13 on each axle 29 move the carriage 8 along the track. The bottom end of a track 7 is shown, and here upper flanges of channelled rails of the track are removed and there are stops 31 coacting with buffers on the carriage 8. A drawbar 24 is guided on rollers 25 on the carriage for dragging-on the segment to be transported. A head 27 for coupling to the segment is displaceable along the drawbar which has notches engageable by a catch 28 in the head.
Patent GB-1291749-A (GB)
Title: Improvements in or relating to ignition systems for operating internal combustion engines
IPC: F02P3/06
Filed: 1970-10-30
Abstract: 1291749 Ignition systems; regulating internal combustion engines ROBERT BOSCH GmbH 30 Oct 1970 [31 Oct 1969] 51629/70 Heading F1B In an ignition system for operating an internalcombustion engine, ignition energy is stored in an ignition capacitor 11 which is chargeable by a charging winding 15 connected thereto, as a result of a magnet system 35 moved relatively to such charging winding and is discharged at the instant of ignition through a primary winding 23 of an ignition transformer 22 by means of an electronic discharging switch 20 which is controlled without contacts by a control pulse fed to a control electrode S of the discharging switch in order to produce a spark on at least one sparking plug 28 connected to a secondary winding 26 of the ignition transformer. As soon as the speed of the engine has exceeded a maximum admissible value an electronic switching action is triggered without contacts by an auxiliary voltage the magnitude of which is dependent upon the speed of the engine as a result of which switching action a circuit connected in parallel with the ignition capacitor becomes conductive in order to produce a substantially discharged state of the ignition capacitor before the control pulse occurring at the instant of ignition is applied to the control electrode of the electronic discharging switch which is connected in series with the primary winding of the ignition transformer. Thus the system gives some protection against the speed of the engine exceeding a maximum admissible speed. The electronic discharging switch 20 may be a thyristor. It is possible to tap the auxiliary voltage from a series circuit containing a monitoring capacitor and a monitoring resistor.
Patent GB-1482163-A (GB)
Title: Space charge limited transistor
IPC: H01L21/337
Filed: 1974-11-29
Abstract: 1482163 Space charge limited transistors INTERNATIONAL BUSINESS MACHINES CORP 29 Nov 1974 [26 Dec 1973] 51741/74 Heading H1K In operation of a planar space charge limited transistor comprising a high resistivity substrate, emitter and collector regions of one conductivity type extending into it from one surface and a third region of opposite conductivity type extending into said surface between them, the part of the substrate between the emitter and collector regions has a dielectric relaxation time much larger than the carrier transit time, and the third region is separated at least from the emitter by an insulating region extending inwards from said surface in order to reduce bipolar transistor action. As described the substrate has a resistivity of #10,000 ohm cm. and the regions which form abrupt junctions with the substrate a doping of at least 10<SP>19</SP> atoms/c.c., and the insulating region is preferably formed by oxidation through silicon nitride masking following an etching step, though it may alternatively be alumina, silicon nitride, or pyrolytic oxide deposited in an etched groove. In the Fig. 2 embodiment a structure consisting of a pair of complementary devices mutually isolated by P+ and N+ diffused regions 36, 37 can be formed on a common substrate 7 using only two diffusion steps, interconnections being provided by metallization such as 38 disposed over recessed oxide to reduce stray capacitance or by regions common to both devices. In modifications the third region may be of greater or smaller depth than the emitter and collector. Operation is discussed in detail.
Patent GB-1421873-A (GB)
Title: Production of dialkylphosphines
IPC: C07F9/50
Filed: 1973-11-08
Abstract: 1421873 Preparing dialkyl phosphines HOECHST AG 8 Nov 1973 [11 Nov 1972] 51902/73 Heading C2P Dialkylphosphines of the general formula R 2 PH, in which each R stands for an alkyl group having from 1 to 3 carbon atoms are obtained by flowing a vaporous or gaseous mixture of phosphorus and an alkyl halide having from 1 to 3 carbon atoms in the alkyl radical by means of a carrier gas, in the absence of oxygen, and at a temperature between 300 and 450 C., over an active carbon catalyst; subjecting the resulting gaseous reaction mixture to fractional condensation so as to initially isolate trialkylphosphonium halide and unreacted phosphorus therefrom, suitably by condensation at about 100 C., and thereafter to isolate a homogeneous mixture comprised of a dialkylhalogenophosphine / hydrogen halide addition product and dialkylphosphonium halide, suitably by condensation at about 20 C., and in a second step solvolyzing the said mixture with an alcohol with the resultant formation of dialkylphosphine oxide (from the dialkylhalogenophosphine-hydrogen halide addition product), the dialkylphosphonium halide remaining substantially unchanged; establishing in the solvolyzed material a pH value of at least 2, e.g. 6 to 8, and separating dialkylphosphine from the solution obtained, e.g. by distillation, phase separation or extraction. The gas remaining after condensation to remove the dialkylhalogenophosphine / hydrogen halide addition product and dialkylphosphonium halide can be subjected to further stagewise condensation at below -20 C. to recover monoalkyldihalogenophosphine and unreacted alkyl halide which latter may be used again for reaction with phosphorus. The efficiency of the catalyst is improved by drying it, before use, at between 350 and 360 C., preferably in the presence of a hydrogen halide. The solvolysis may be carried out by introducing the indicated mixture at between -70 and +70 C. into a C 1 -C 12  aliphatic alcohol to the exclusion of oxygen, e.g. in an atmosphere of nitrogen. The carrier gas in the first step of the process may be hydrogen, nitrogen or argon, or mixture thereof, or hydrogen chloride or hydrogen bromide which are preferred, and the phosphorus used may suitably be yellow phosphorus in vapour form. Specified alkyl halides are methyl chloride, methyl bromide and ethyl chloride.
Patent GB-1081378-A (GB)
Title: Fluid pressure actuators
IPC: F15B15/08
Filed: 1965-12-08
Abstract: 1,081,378. Screw-and-nut gearing. EASTMAN KODAK CO. Dec. 8, 1965 [Dec. 8, 1964], No. 51965/65. Heading F2Q. [Also in Division F1] A double-acting hydraulic or pneumatic operated spring- biased piston 26 for rocking an axial drive-shaft 36 is held against rotation within its cylinder 24 by abutment of a flat 49 of a bifurcated guide yoke 14 secured to the cylinder endplate 10 against a flat on the central portion 50 of the piston 26, which is formed with an axial recess having an internally threaded metal or plastics insert 34 engaged by the drive-shaft 36 which extends through the opposite end-plate 20 of the cylinder; the biasing spring 60 being located within the cylinder and serving to return the piston 26 and hence the drive-shaft 36 to a predetermined position, e.g. against end-plate 20 in the event of loss of fluid pressure. The fixed guide yoke 14 which is angularly adjustable carries a longitudinally adjustable bolt 56 which limits the piston stroke towards endplate 10.
Patent GB-1418540-A (GB)
Title: Synthetic resin composition
IPC: C08K5/51
Filed: 1973-11-14
Abstract: 1418540 Methyl methacrylate resins of reduced inflammability ROHM GmbH 14 Nov 1973 [17 Jan 1973 12 July 1973] 52831/73 Addition to 1402044 Heading C3P Synthetic resin compositions comprise a mixture of (1) 60 to 97% by weight of a copolymer of: (a) 50 to 87 parts by weight of methyl methacrylate or a mixture thereof with at least one further non-bromine-containing radically polymerizable monomer; and (b) 10 to 40 parts by weight of tribromoneopentyl acrylate and/or methacrylate together, if desired, with a compound of formula (wherein R is a hydrogen atom or a lower alkyl group, Ar is a phenyl group which may, if desired, be substituted (in addition to bromine substituents), alk is an alkylene group, n is 0 or 1, p is 0 or (providing n is 1) 1, and m is an integer from 1 to 5; and (2) 40 to 3% by weight of a phosphorus-based fire-retardant soluble in the monomer mixture from which the copolymer is formed, the percentages being based upon the total weight of components (1) and (2). The compositions are prepared by polymerizing the monomer mixture in the presence of the fireretardant and a catalyst, e.g. a mixture of dilauroyl peroxide and azobisisobutyronitrile, optionally in the presence of a regulator, e.g. 2-ethylhexyl thioglycolate. The fire-retardant may be phosphoric acid or an ester of phosphoric or an organic phosphonic acid, especially esters containing chlorine. In examples, methyl methacrylate is copolymerized with tribromoneopentyl methacrylate and either methacrylic acid or methyl acrylate in the presence of a haloalkyl phosphonate of formula
Patent GB-1375706-A (GB)
IPC: C07C281/10
Filed: 1971-11-15
Abstract: 1375706 Dihalobenzaldehyde semicarbazone derivatives MINNESOTA MINING & MFG CO 15 Nov 1971 [16 Nov 1970] 52999/71 Heading C2C The invention comprises semicarbazones of formula in which X is a halogen atom, R is an alkyl or haloalkyl group having 1-4 carbon atoms or a phenyl or substituted phenyl group, and R<SP>1</SP> represents a C 1 -C 4  alkyl group. They may be prepared by reacting a hydrazone compound of formula with an alkyl cyanate, in which the alkyl group has 1-4 carbon atoms, in the presence of a non-reactive solvent and a tertiary amine catalyst at reflux temperature of the solvent for about 1-48 hours. The semicarbazone products may be used as plant growth regulators.
Patent GB-1201567-A (GB)
Title: Vehicle safety apparatus
Inventor: GOETZ GEORGE WILLARD
IPC: B60R21/16
Filed: 1968-11-08
Abstract: 1,201,567. Crash restraint bags. EATON YALE & TOWNE Inc. 8 Nov., 1968 [8 Nov., 1967], No. 53128/68. Heading B7B. A crash restraint bag having an expanded volume V B  at pressure P B  is inflated from a reservoir of volume V R  and an initial gas pressure P O , the gas flowing through a nozzle defining the minimum flow area and the product P o V R  is equal to (1-Z<SP>2K/(1-K)</SP>)(2K-1/K)P B V B  where K is the ratio of specific heats of the gas and where the quantity (1-Z <SP> 2K/(1+K)</SP>) is the ratio of the volume of the bag when inflated and the volume of the bag when t is infinity.
Patent GB-1087596-A (GB)
Title: Processes for preparing steroid compounds
IPC: C07J75/00
Filed: 1965-12-15
Abstract: The invention comprises 17b -hydroxy-4,5-seco - 19 - nor - androsta - 3,5 - dione and a process for the preparation of 19-nor testosterone or a 17b -ester thereof derived from an aliphatic, araliphatic or aromatic carboxylic acids, in which 17b  - hydroxy - 4,5 - seco - 19 - norandrosta - 3,5 - dione is reacted with a cyclisation agent e.g. sodium or potassium methylate or t-amylate, or HCl in the presence of acetic acid. The starting 17b -hydroxy-4,5-seco-19 - nor - androst - 3,5 - dione may be obtained by catalytically hydrogenating 17b -hydroxy - 4,5 - seco - 19 - nor - androst - 9 - ene 3,5-dione.
Patent GB-1401508-A (GB)
Title: Apparatus for mashing food
IPC: B01F15/00
Filed: 1972-11-17
Abstract: 1401508 Mixing apparatus UNIVERSITY OF IFE 28 Aug 1973 [17 Nov 1972] 53284/72 Heading B1C Apparatus for mashing food such as boiled yam or plantain comprises a beater having a central shaft 1 and four blades 3, 4, 6, 7 equiangularly spaced and parallel to the shaft 1, the radial distance E/2 of the blades of a first pair 6, 7, being 3 to 6 inches, the radial distance K/2 of blades 3, 4 being 3 to 6 inches greater than E/2, each blade of the second pair being supported by a plurality of radial arms 5 spaced 3 to 6 inches apart, and the beater being mounted for rotation in a cylindrical bowl of internal diameter ¢ to 2¢ inches greater than the diameter K of the beater at the second pair of arms. The peripheral velocity of the second pair of blades is 1800 to 2500 feet per minute in use.
Patent GB-1363636-A (GB)
Title: Method of securing a lead bush to the lid of an electric storag battery
IPC: H01M2/30
Filed: 1971-11-04
Abstract: 1363636 Mounting battery terminals JOSEPH LUCAS (INDUSTRIES) Ltd 4 Nov 1971 [11 Nov 1970] 53545/70 Heading H1B A lead bush 13 with an annular flange 14 is secured to a battery lid 9, e.g. of polypropylene, by inserting it into aperture 10 and then welding a plastics, e.g. polypropylene, sleeve 16 to the lid so that the flange 14 is held between the lid and the sleeve. A resilient washer 15 is trapped between th eflange 14 and a shoulder 12 which surrounds the aperture 10. The heat for the welding is provided by placing the sleeve and the lid in contact with hot surfaces or by rotating the sleeve in the chuck of a frictionwelding machine; in the latter case a meltable rib is provided on the sleeve. To prevent rotation of the bush the periphery of the flange 14 is provided with angularly spaced projections which bite into the wall of the aperture 10 or engage serrations which may be provided on the aperture wall. In the embodiment of Fig. 1 the sleeve 16 and bush 13 are tapered, the narrowest portion of the bush being fused to a lead terminal post 18. In the embodiment of Fig. 4 (not shown) the bush in not tapered and an L-shaped connector bracket (19) is secured to it.