baber/WOPTO huggingface dataset:
Patent GB-989882-A (GB)
Title: Penicillins
Inventor: DOYLE FRANK PETER
IPC: C07D499/58
Filed: 1961-07-04
Abstract: Penicillins of the general formula <FORM:0989882/C2/1> and non-toxic salts thereof, where R1, R2 and R3 are the same or different and each is a hydrogen atom or a nitro, chloro, bromo, hydroxy, alkanoyloxy or alkoxy group and R4 is an alkanoyloxy group containing up to 6 carbon atoms are prepared by reacting 6-aminopenicillanic acid or a neutral salt thereof with an appropriate acylating agent.  Examples describe the production of a -acetoxybenzylpenicillin in DL, D and L forms, and of a -acetoxyp - chlorobenzyl -, a  - acetoxy - p - aminobenzyl-, a -propionoxybenzyl-, a -dichloroacetoxybenzyl- and a -trimethylacetoxybenzyl-penicillin.  a -Hydroxybenzyl penicillin may be obtained by enzymatic hydrolysis of a -acetoxybenzyl-penicillin. Propionyl mandelyl chloride and dichloroacetyl mandelyl chloride are prepared by treating mandelic acid with respectively propionyl chloride and dichloroacetyl chloride, followed by treatment of the products with thionyl chloride.  Acetyl - p - chloromandelyl chloride may be prepared by treating p-chloromandelic acid with acetyl chloride and heating the product with thionyl chloride. Specification 880,042 is referred to.  Reference has been directed by the Comptroller to Specification 925,281.
Patent GB-467460-A (GB)
Title: Improvements in or relating to motion picture cameras
IPC: G03B21/43
Filed: 1936-09-03
Abstract: 467,460. Kinematograph cameras. BELL & HOWELL CO. Sept. 3, 1936, No. 24122. Convention date, Sept. 3, 1935. [Class 97 (i)] Means for indicating the length of film fed in a camera is associated with means for automatically releasing the drive to the indicator at the end of the film run ; the indicator may also be automatically returned to its starting position, and the driving connection may be restored as a consequence of movement of a member in the course of reloading the camera. As shown, the indicator comprises a graduated dial 16, Fig. 7, visible through a window 22 against a reading mark, and driven by a worm 32, Fig. 6, engaging ratchet teeth 33 on its edge. The worm 32 is carried by a shaft 25 driven from the film feed mechanism, and the shaft is mounted at its upper end in a slotted portion 35 of a latch member 36 carried by a pin 38 engaging a slot 37 therein. The positions occupied by the member 36 and shaft 35, during the normal use of the apparatus, are shown in broken lines in. Fig. 6, but movement of the member 36 to the full-line position, permitted by the slot, removes the worm 32 from the teeth 35. This movement is produced automatically by a tension spring 67 when the rear end of the member 32 is lowered by a link 69 moved downwardly by the engagement of a member 77, carried by the dial 16, with a lug 72 carried by the link 69. The disengagement of the worm from the teeth permits a coil spring 75 to return the dial 16 to a starting position determined by the engagement of the member 77 with a fixed stud 81 ; this engagement audibly signals to the user that the camera requires re-loading. The tension spring 67 extends between a lug 65 on the member 36 and a lug 66 on a bell-crank lever 39, and its action is prevented until the end of the film run by the abutment of the portion 35 of the member 36 on a projection 42 on the lever 39, the lever 39 being held in the full-line position shown in Fig. 6 by the closed door of the camera casing. The door 2, Fig. 4, . operates, through a rod 62 and a bell-crank lever 52, to thrust upwards a bar 46, connected as shown in Fig. 6, at its upper end to the lever 39, and hold the lever 39 in the full-line position. Opening of the door 2 frees the rod 62 and permits a spring 57, round the pivot of the lever 52, to move the parts into such positions that the lever 39 assumes the broken-line position shown in Fig. 6 ; the spring 67 then pulls the member 36 into position such that its end 35 abuts against the projection 42, and the member 36, shaft 25, &c. again assume the brokenline positions shown in Fig. 6 when the door is again closed. The rod 62 slides in a stud 59 having a double-conical end 82 for engagement with a door latch 88, Fig. 9, closed by a spring 91 and released manually by a toothed stud 94.
Patent GB-842693-A (GB)
Title: Improvements in or relating to horse-riding saddles
IPC: B68C1/00
Filed: 1955-08-23
Abstract: 842,693. Saddles. FRESHFIELD, E. H. July 11, 1956 [Aug. 23, 1955], No. 24242/55. Class 62. A self-adjusting saddle framework suitable for a variety of horses comprises two supporting pad members C, Figs. 1 and 4, carrying the stirrup bars C<SP>6</SP>, the pad members being pivotally attached in the region of their centre of gravity to a U-shaped member B by ball and socket joints B<SP>1</SP>, C<SP>1</SP>. By fitting underpadding felt j as shown in Fig. 5, the arrangement may be used as a felt practice riding saddle, a fitted felt saddle (not shown) built up on the underpadding and the U- shaped member B yeilding sufficiently to permit movement of the pad members. Alternatively the framework may form part of a saddle tree comprising a seat frame A<SP>1</SP>, Fig. 2, of wood or light alloy and a bracket A<SP>3</SP> carrying a gullet plate A<SP>2</SP>, the bracket having slots A<SP>4</SP> permitting limited movement of the U-shaped member B. In this arrangement the frame A<SP>1</SP> may have projecting limbs A<SP>5</SP> each formed with spherical ends A<SP>6</SP> which provide additional pivotal support for the pad members by engaging ball sockets C<SP>5</SP>. The saddle leatherwork c is secured to the rear end of the seat frame and to the gullet plate, while the underpadding d is in the form of two strips each secured between the underside of a pad member and the rear of the seat frame, the strips being sufficiently narrow as to permit movement of the pad members. It is suggested that the gullet plate may be omitted, in which case the U-shaped member rests on the upper face of the bracket A<SP>3</SP>. An alternative embodiment comprises an H-shaped framework, Figs. 6 and 7, formed of cranked spring-steel rods or bars D<SP>1</SP> joined by a cross-piece D<SP>2</SP>, the rods or bars having spherical ends D<SP>3</SP>. The pad members and further pads E of oval shape are pivoted by sockets E<SP>1</SP> to respective ends of the frame, the pads on each side being joined by a strip of thick rubber F cemented to the undersides. Alternatively the oval pads may be fixures, or all the pads may have pivots permitting only restricted movement, the strips F being omitted in the latter case.
Patent GB-630235-A (GB)
Title: Method of sealing metal bodies to vitreous members
IPC: H01J5/42
Filed: 1947-09-04
Abstract: 630,235. Glass-to-metal seals; cable joints. STANDARD TELEPHONES & CABLES, Ltd. Sept. 4, 1947, No. 24406. Convention date, April 23, 1943. [Classes 36 and 38 (i)] In a coaxial lead-in joint the inner conductor 4 is provided with an expanded sleeve portion 6 which is sealed in a central perforation in a glass plate 3, and the outer conductor 7, which has a bevelled end 9, is sealed to the outer edge of plate 3, the sealing being carried out in a high-frequency oven. This construction forms one end of a resonant cavity 12, and the highfrequency power generated therein is transmitted to outside by conductors 5 and 11 which are screwed on to conductors 4 and 7 respectively and welded in position.
Patent GB-578362-A (GB)
Title: Improvements in and relating to windows for buses and the like
IPC: B60J1/14
Filed: 1944-12-06
Abstract: 578,362. Bus and like windows. YOUNG, W. Dec. 6, 1944, No. 24416. [Class 20 (iii)] Instead of making windows to a particular. size for individual houses or the like, windows of standard size are mounted in apertured standard panels a and the outer edges of the panels are trimmed according to the size of the aperture in the bus or body to be filled. To facilitate replacement of broken windows without removing the panel of the framing members forming the inner portions of the glass receiving channels are made easily removable from the central and outer portions of the channels which are constituted by shaped portions either of the edges of the aperture in the panel or of members rigidly secured to the panel. The windows may be'fixed or of the half-drop or half-rise type, or as shown may be partly fixed b and partly sliding b<1>, b', or may be partly fixed and partly of the hinged louvre type. In the form shown the edges of the panel around the aperture are shaped as at a<1> to form the outer sides of the glazing channels of the upper and side members of the upper window frame and of the side and bottom members of the lower window frame. The central portions of these channels and the outer sides and central portions of the channels of the remaining portions of the frames are formed by portions c<2>, d, e of shaped members welded to the edges of the aperture in the panel. The inner portions of all the channels are formed by shaped framing members j', f, h<1> removably secured to the members forming the central portions of the channels.
Patent GB-1060748-A (GB)
Title: Production of acid derivatives of dicarboxylic monochlorides
Inventor: METZGER HORST
IPC: C07C51/58
Filed: 1964-06-12
Abstract: The invention comprises acid derivatives of formula R1-CO-(CR2)xO -(CR2)y-CO-Cl in which R1 denotes an alkoxy, aryloxy, amino, hydrazino or an azido group and in which R denotes a hydrogen atom or an alkyl radical, x is an integer higher than 2, y is an integer higher than 2 and the sum of x and y is from 6 to 9, and their preparation by reacting a dicarboxylic dichloride of formula Cl-CO-(CR2)x-O -(CR2)y-CO-Cl with an alcohol, phenol, ammonia, hydrazine, hydroxylamine, primary amine, secondary amine or a derivative thereof having at least one hydrogen atom on the nitrogen atom, or an azide, in the presence of a proton acceptor. Oxa - bis - y - butyryl chloride, oxa - bis - d -valeryl chloride, and 4-oxa-suberyl, 4-oxa-azeloyl, 5-oxa-sebacyl, 5-oxa-undecanyl, 6-oxa-dodecanoyl and 3,7 - dimethyl - 5 - oxa-azeloyl dichlorides are mentioned as starting materials and alcohols, amines, and phenols which may be substituted by inert substituents such as halogen, alkoxy, carbalkoxy, nitro aryloxy, araloxyl, and cyano groups, and salts of nitrogen hydracids are listed.  Conventional solvents may be present and the proton acceptors are trimethyl or ethylamine, pyridine, dimethyl aniline, N-methylpyrrolidone, alkali metal carbonates or hydroxides and alkaline earth metal carbonates and/or bicarbonates. Examples describe the reaction of oxa-bis-y-butyryl chloride with p-nitraniline, and with a  - amino - e  - caprolactam; oxa - bis - y-valeryl chloride with p-nitraniline; and oxa-bis-y-butyryl chloride with methanol and with b -naphthol. The products are used as intermediates in the production of reactive dyers and plant protective agents.
Patent GB-670460-A (GB)
Title: Improvements in or relating to adsorbents for chromatographic separation
Inventor: LORD JAMES WALTER
IPC: G01N30/50
Filed: 1949-09-23
Abstract: In the chromatographic separation or concentration of vegetable pigments, e.g. beta carotene and chlorophyll from grass, the adsorbent comprises bone meal or calcium phosphate which has been treated with a solution of phosphoric acid in a polar organic solvent followed preferably by treatment with pure polar solvent and aqueous polar solvent.  A petrol extract of grass is passed through the adsorbent which is then washed with petrol to remove beta-carotene, then with acetone to remove chlorophyll and finally with petrol to remove the acetone.  Revivification of the adsorbent may also be effected by the acid-solvent treatment. Specification 562,962 is referred to.ALSO:An adsorbent for the chromatographic separation or concentration of vegetable pigments (see Group IV(b)) comprises bone meal or calcium phosphate which has been treated with a solution of phosphoric acid in a polar organic solvent, e.g. acetone. Preferably, the so-treated phosphate is subsequently washed with the pure polar solvent and then with an aqueous mixture of the polar solvent.  Revivification of the adsorbent may also be effected by the same treatment.  Specification 562,962, [Group IV], is referred to.
Patent GB-1010185-A (GB)
Title: Water dispersible polyethylene wax compositions
IPC: C09D123/30
Filed: 1962-06-26
Abstract: A wax composition contains a water-dispersible polyethylene wax and an amount (1-25% or more specifically 6-12% by weight on the composition) sufficient to inhibit changes in viscosity normally exhibited by the wax of a primary aliphatic saturated or unsaturated monohydric alcohol containing 4 to 20 carbon atoms, e.g. cetyl, stearyl, or oleyl alcohol or 2,2-dimethyltetradecanol. The wax may have a M.W. of 1000 to 6000, a density of 0.90 to 0.97, a ring-and-ball softening point of 90-112 DEG  C., and an acid number of 4 to 25.  In Example 7, stearyl alcohol is added to a degraded non-dispersible polyethylene wax prior to oxidation at 150 DEG  C. with oxygen.
Patent GB-1221660-A (GB)
Title: Improvements in fluid-pressure-operated jacks and applications thereof
IPC: B21B31/32
Filed: 1968-05-22
Abstract: 1,221,660. Rolling. SOC. NOUVELLE SPIDEM. 22 May, 1968 [22 May, 1967], No. 24544/68. Heading B3M. [Also in Division B8] A clamping cylinder for a rolling mill rests on the mill housing 1 and has a jack cylinder 4 with three bores successively forming housings for a working piston 6, a precompression piston 5 and a closure plate 8. Auxiliary fluid at a pressure markedly higher than the working pressure in chamber 10 is initially admitted into chamber 14 and the jack then operated conventionally. In the event of overpressure a detector 19 acts to open an ultra-rapid, fullopening valve 16 to bring about an immediate decompression of the system.
Patent GB-424503-A (GB)
Title: Improvements in or relating to electric carrier signalling systems
IPC: H04L27/08
Filed: 1933-09-05
Abstract: 424,503. Code telegraphy. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and FARREN, L. I., c /o General Electric Co., Wembley, Middlesex. Sept. 5, 1933, No. 24619. [Classes 40 (iii) and 40 (v)] In a voice-frequency telegraphic receiver in which a relay 13 is operated by applying trains of carrier waves, constituting the signal impulses, to a valve 12 which is preferably a gas-filled triode arranged to come into and out of action for equal values of the grid voltage, as described in Specification 408,961, the grid bias of the triode 12 varies automatically with the mean amplitude of the signals so that the impulses recorded may all be of the correct length, although the impulses may have been distorted in transmission. The envelopes of the carrier impulses are square at the transmitter but are rounded in transmission so that at the receiver the carrier takes time to rise to its maximum amplitude and to fall to zero. They will usually be recorded with the correct length by the relay 13 if the voltage at which they become operative upon the grid 11 is half the maximum voltage, and the grid bias is accordingly made to consist of a variable part, produced by a rectifier 10 and coupling 4 in dependence upon the average value of the signals received through the input valve 2, together with a fixed part determined by battery 14 and potentiometer 9 through resistance 7, the adjustments being such that the operative value of the grid voltage is reached when the amplitude of the carrier has risen or fallen to half its maximum. In a modification the function of the rectifier 10 is performed by a subsidiary anode in the valve 2, Fig. 2, (not shown). Specification 365,907 is referred to.
Patent GB-150999-A (GB)
Title: Improvements in machines for treating cinematograph films
IPC: G03D3/13
Filed: 1920-08-25
Abstract: 150,999. PathÚ Cinema, Anciens Etablissements PathÚ FrÞres, (Assignees of Salins, G. A.). Sept. 11, 1919, [Convention date]. Continuous apparatus for developing, fixing, washing, finishing.-Apparatus for developing and otherwise treating kinematograph films comprises a series of tanks oach of which has a series of reels mounted on parallel shafts a, b, c, d, e, Fig. 1, and over which the film travels in a long progressive course through the tank. The reels on the shafts are staggered as shown in Fig. 2. The three upper shafts b, c, d, together with the shaft a carrying sprockets m, n for feeding the film are mounted on an upper frame, while the lower shafts e, f, are pivotally carried by the uprights r. s. The former of these uprights is normally clamped to the frame by the set-screw k and the latter is left free to move vertically. The upright s has a contact z for electrically indicating any break in the film. The time of treatment in the tank is controlled by increasing or reducing the rate of feed of the film. This allows the shafts e, f to pivot in one direction or the other, as shown in Fig. 4, and the shafts are again brought to the horizontal by adjusting the upright r in its socket on the upper frame.
Patent GB-226629-A (GB)
Title: Improvements in and relating to devices for raising or lowering window blinds and the like
IPC: E06B9/78
Filed: 1923-10-05
Abstract: 226,629. Riley, J. W., and Laxton, K.. E., (Executrix of Laxton, W. H. L.). Oct. 5, 1923. Roller-blinds.-A brake for window blinds comprises a U-shaped spring metal shoe the sides f of which bear on the blind-operating cord g. The shoe is prevented from turning by an attached ring f<2> engaging a pin e<2> on the usual end bracket e. The sides f may be curved and provided with terminal coils f<1>. These may be made narrower than the sides f and adjustably connected by a cord or elastic ring.
Patent GB-1389520-A (GB)
Title: Cabinets
IPC: H05K5/02
Filed: 1973-05-24
Abstract: 1389520 Sliding box lids INTERNATIONAL STANDARD ELECTRIC CORP 24 May 1973 [24 May 1972] 24817/73 Heading B8P [Also in Divisions H3 and H4] In a cabinet 1, Fig. 1, comprising a displaceably arranged plastics cover-plate 6 with edge portions 15, Figs. 2 and 3, at least partly slidingly supported in channels 7 of the cabinet, either one edge portion 15 or channel wall has a groove 16, extending at least partly therealong, the edge portion 15 or channel wall has a plurality of tongues 21 provided by means of transverse slots and the edge portion 15 has a width equal to or wider than that of the associated channel so as to substantially prevent rattling of the cover-plate. As shown a cabinet 1 of an electrical communication equipment, such as a portable radio has cover-plate 6 which may be slid to the left to enable access to an opening 2 provided with connecting facilities 3 and button controls 4. The cover-plate 6 may be inserted or removed via a gap 13. The tongues 21 of the cover-plate 6 resiliently press against the wall of the channel 7 so as to have a damping effect on the relative movements between the cabinet and the cover-plate due to vibrations acting on the cabinet or oscillations of the loud-speaker diaphragm which are transferred to the cabinet so as to prevent the cover-plate 6 from rattling. Preferably the groove wall 19 projects over the surface 17 on the cover-plate side containing the tongues 21. Resiliency of the edge of the groove wall 19 is improved by wedge-shape design of the groove 16. More than one cover-plate 6 may be provided and the stop edge 12 of the cabinet may be omitted so that the plate 6 may extend to the edge of the cabinet. In a modification it would be possible to groove and slot one of the walls of each channel 7 instead to produce the same anti-rattling effect and this could be done in the same way as shown in Figs. 2 and 3 such as to an inside wall so that the transverse slots similar to 20 do not show from the outside. The cabinet may be used for radio and television receivers or tape recorders. The Specification refers to such cabinets as having the cover-plates on the bottom and/or rearside where they serve to close a battery compartment, a compartment for keeping a power cable or a microphone or a remote control device or for connecting facilities such as an extension speaker or control buttons.
Patent GB-334047-A (GB)
Title: Tube expanding apparatus
IPC: B21B19/08
Filed: 1929-08-14
Abstract: 334,047. Demag Akt.-Ges. March 23, 1929, [Convention date]. Rolling tubes ; skew-rolling ; mandrels. - A tube 6 is expanded to larger diameter by rolling between a series of external conical rolls 1 each working with like internal rolls 5, the rolls 1 also being slightly skewed to the tube axis to give forward feed. The rolls 1 have slightly hyperbolic surfaces and are driven from gears 8. The rolls 5 are mounted to rotate in the stationary mandrel head 4, e.g. by resting on a central tapered roller 13 which may be adjusted axially for different tube diameters. Rolls 5 may be driven.
Patent GB-156888-A (GB)
Title: An improved adjustable fastening device for watches worn on the wrist
IPC: A44C5/22
Filed: 1919-10-11
Abstract: 156,888. Kinnard, E. H. Oct. 11, 1919. Watch bracelets.-A watch wristlet strap a, Fig. 1, is secured at one end to a loop b having a spring clip c for attachment to one lug of the watch, the free end passing through a loop b<1> provided with a similar clip c<1>. This end has a snap fastener f to engage with a stud e on a slide d which can be adjusted in positon on the strap. In a modification, Fig. 4, the strap is in two portions of unequal length, the shorter i being secured to one watch lug by a snap fastener k and having a slotted member l. The other portion a is secured to the other lug by a spring clip c, its free end being passed through the member and provided with a snap fastener f to engage a stud h. The stud h is adjusted in position by being passed through one of a series of holes in the strap.