Dunlop Jacks
Last updated 12 April 2024 |
Database For Vintage and Classic Dunlop Vehicle Jacks
Other vintage British car jack databases:
George Radion in Australia has a database on Australian-made Jacks
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This database is for vintage and classic Dunlop vehicle jacks. Many of the photos and comments have been gleaned from Ebay and other sites. I would be pleased to add photos and comments from anyone who has information on these jacks.
Please note that this information is accurate to the best of my knowledge, but I make no claims about authority on this subject. Use your own discretion when evaluating the accuracy of the information.
All Dunlop screw jacks are now very old. I would recommend that they are now used only for display purposes. If one is used for lifting a vehicle, the operator should never put them self underneath the supported area without additional load bearing equipment in place, such as block of wood. Never use bricks for this purpose.
The values are normally taken from auction sites world-wide, but exclude postage.
Request to vendors: Please feel free to use the information from these databases in your adverts. An acknowledgement of the source would be most welcome. However, please do not twist any of the information. Where I say along the lines: 'May be for car X' please make this clear in your advert. An altered statement saying: 'It is for car X' will create false facts and misinformation. If you know for certainty a jack's heritage please contact me so that I can amend the entry. Thank you.
Miscellaneous Jacks - followed by Numbered Jacks Page 2 LJ Series Jacks and Trolley Jacks
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Dunlop Early Description The jack is a 2 stage. It is cast DUNLOP. Unusually this jack has 2 pinions , one for the square section central body and the other for the inner screw extension. It measures 7 inches fully retracted; 11" with the main body extended and 15" with the screw extension. Applicable Vehicles: Not known Jack Handle Type: Not known Year Dates Noted:
Value: Average price paid in 2015 = £4.20 - 1 sale Average price paid in 2016 = £3.20 - 1 sale
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Description The Dunlop Balloon Type appears to have been produced in at least 2 height sizes. See entry below. It is an unusual twin screw jack as can be seen in the second photo. It would appear that the body is rotated clockwise (viewed from above) to extend both screws simultaneously. The base is cast DUNLOP BALLOON TYPE PROV. PAT 14418. It can take loads up to 3 tons. It is 10" closed and 19.5" extended It is shown in the AC parts list for 1920 series AC cars, probably the AC 6. However, was it this jack or the version below? Photos and information courtesy of Neil Crump. Applicable Vehicles: Unidentified AC Cars 1920s to 1930s. (Uncertain if this jack or the one below). Jack Handle Type: Round bar 36" long as shown in bottom left of fourth picture. Year Dates Noted:
Value: Average price paid in 2013 = £19.99 - 1 sale Average price paid in 2014 = £19.99 - 1 sale Average price paid in 2017 = £17.00 - 1 sale Average price paid in 2018 = £12.57 - 2 sales Average price paid in 2019 = £13.75 - 2 sales
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Dunlop Balloon Type - Variation 1 Description The Dunlop Balloon Type appears to have been produced in at least 2 height sizes. See entry above. It is an unusual twin screw jack as can be seen in the first and second photos. It would appear that the body is rotated clockwise (viewed from above) to extend both screws simultaneously. The base is cast DUNLOP BALLOON TYPE PROV. PAT 14418. This second version is 6.5" closed and 15" extended. Photos and details courtesy of Sven Payne. This version has only just come to light so at this stage I do not know which version was supplied with AC cars. Applicable Vehicles: Unidentified AC Cars 1920s to 1930s. (Uncertain if this jack or the one above). Jack Handle Type: Round bar 36" long as shown in bottom left of fourth picture in above entry. Year Dates Noted:
Value: Average price paid in 2020 = £40.00 - 1 sale
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Description The jack is a double screw. The body is pressed steel, not cast as is the normal for this type of jack. Embossed DUNLOP. MADE IN ENGLAND along the base. No model number It is 5.5" closed and 12.5" extended. Photos and details courtesy of Supersnails (Ebay vendor). Applicable Vehicles: Not known Jack Handle Type: As shown, 30" single shaft with wooden handle. Year Dates Noted:
Value: Average price paid in 2016 = £29.00 - 1 sale
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Description The Dunlop DL is a twin screw jack. It is 6" retracted and 13.5" extended. The base is a 6" x 3 7/8" oval. On one side it is cast PAT 235497 horizontally and DUNLOP vertically down the barrel. On the other side is DOUBLE LIFT down the barrel. The saddle jacking plate is 2.5" x 1". It has a 1/2" square drive. Very similar in many ways to the LJ1 below and it shares the same patent number. Applicable Vehicles: Not known Jack Handle Type: Length 27". 7th photo. Year Dates Noted:
Value: Average price paid in 2017 = £3.99 - 2 sales Average price paid in 2018 = £14.99 - 1 sale Average price paid in 2019 = £8.00 - 1 sale Average price paid in 2020 = £10.00 - 1 sale Average price paid in 2021 = £13.09 - 1 sale
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Dunlop No.1 - Variation 1 Description Cast No.1 DUNLOP. Only other details as shown in the photo. Applicable Vehicles: Not known Jack Handle Type: 2 piece with wooden handle as shown in the second picture. Year Dates Noted:
Value: Average price paid in 2017 = £4.39 - 3 sales Average price paid in 2018 = £10.00 - 1 sale Average price paid in 2019 = £40.00 - 1 sale
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Description This version of the No.1 is cast DOUBLE LIFT down one side of the barrel and DUNLOP down the other side. Around the neck is No.1 and PAT 235497. Unlike the jack above it also has a saddle jacking plate and a slotted pinion. There would normally be a spring in the slots that retained the jack handle in the pinion. Applicable Vehicles: Not known Jack Handle Type: 2 piece with wooden handle as shown above. Year Dates Noted: Patent application was 9 Feb 1925. Awarded 18 June 1925. Interestingly the patent belongs to Lake & Elliot which demonstrates business relationships between the 2 companies. Value: Average price paid in 2020 = £11.99 - 3 sales Average price paid in 2021 = £0.99 - 1 sale
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Description The No.2 is a single screw jack. On one side is cast DUNLOP 7 No.2 and on the other FOR CARS UP TO 1 TON PAT 184723. The top of the gear wheel is cast MADE IN ENGLAND. Measures 7" retracted and 11.5" extended. Applicable Vehicles: Not known Jack Handle Type: Not known Year Dates Noted:
Value: Average price paid in 2016 = £16.00 - 1 sale Average price paid in 2017 = £25.00 - 1 sale Average price paid in 2018 = £21.99 - 1 sale Average price paid in 2019 = £13.50 - 1 sale
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Dunlop No.3 Description The jack is cast DUNLOP 8 No. 3 PAT 184723. No other details known. Applicable Vehicles: Not known Jack Handle Type: Not known Year Dates Noted:
Value:
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Description The Dunlop 9" No.4 is a single screw jack. It is cast DUNLOP 9" No.4 PAT 184723 vertically down one side and FOR LOADS UP TO 5 CWTS down the other. Under the jacking saddle plate is cast 2610. On the winder mechanism is punched MADE IN ENGLAND. The pinion hole accepts an engine crank shaft. It is 9.5" closed. Extended it looks like nearly double that. Applicable Vehicles: Not known Jack Handle Type: As shown in final photo. Year Dates Noted:
Value: Average price paid in 2019 = £14.99 - 1 sale
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Description The Dunlop 6 1/2 is a single screw jack with a 'peg in the hole' manual extension. It is cast DUNLOP 6 1/2 vertically down one side and FOR CARS UP TO 30 CWT cast on the other. The pinion hole is 1/3" square section Applicable Vehicles: Not known Jack Handle Type: Not known. Year Dates Noted:
Value: Average price paid in 2019 = £10.00 - 1 sale
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Description This Dunlop 8 is a single screw rack & pinion operated jack. It is cast DUNLOP 8 vertically down one side and FOR CARS UP TO 1 TON No.6 cast on the other. The pinion cover plate is stamped MADE IN ENGLAND PAT No.147369. That patent was awarded to Lake & Elliot on 22 July 1920. The saddle plate has a hole for a hinged extension. Closed height is 8.25"; extended 14"; base 5.75" x 3.75" Photos courtesy Ebay vendor Rick. Applicable Vehicles: Not known Jack Handle Type: The handle shown may not be an original pattern? The correct handle is shown in the next entry. Year Dates Noted: Circa 1920 Value:
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Description This Dunlop 8 is a single screw rack & pinion operated jack, seemingly identical to the one above. It is cast DUNLOP 8 vertically down one side and FOR CARS UP TO 4 TONS cast on the other. The pinion cover plate is stamped MADE IN ENGLAND PAT No.147369. Photos courtesy of Alan Nolan. Applicable Vehicles: Not known Jack Handle Type: As shown in the third photo. Year Dates Noted:
Value: Average price paid in 2021 = £17.00 - 1 sale |
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Description
The Dunlop No. 8 is a single screw jack. It is
cast DUNLOP 8 vertically down one side and FOR CARS UP TO 1 TON cast on
the other.
Closed 8 1/4”, open 13
1/2”. Base 4 3/4” X 3”. Pinion drive hole is 1/2” Applicable Vehicles: Not known Jack Handle Type: Not known. Year Dates Noted:
Value: Average price paid in 2021 = £12.00 - 1 sale
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Description The Dunlop No. 9 is a single screw jack. It is cast DUNLOP 9 vertically down one side and FOR CARS UP TO 1 TON PAT 184723 cast on the other. Applicable Vehicles: Not known Jack Handle Type: Not known. Handle shown is not original. Year Dates Noted:
Value: Average price paid in 2019 = £30.00 - 1 sale
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Description The Dunlop No 10 is a mechanical jack. The ram and the adjacent screw extend on the pinion, while the inner screw has to be manually extended. Cast on one side DUNLOP No 10 PAT No 235497 and on the other SUPER DL CAUTION DONT OVERWIND. Closed height is 6.5" and extended 16.5". The base is stamped MADE IN ENGLAND FABRIQUE EN ANGLETERRE and measures 6.1" x 4.3". Photos and details courtesy of Andy Billings. The 7th picture is taken from a Cadison brochure. It shows a variation to the casting, but includes the handle - kindly supplied by Tore Karlsson. Applicable Vehicles: Rolls Royce 20/25 - 40/50 Jack Handle Type: Folding 2 piece handle. 43 inches long with wooden cross bar. However the schematic shows a metal cross bar. Se final 5 pictures.. Year Dates Noted: Circa 1929. Value: Average price paid in 2015 = £499.00 - 1 sale Average price paid in 2018 = £575.00 - 2 sales Average price paid in 2019 = £560.35 - 1 sale Average price paid in 2020 = £272.87 - 1 sale
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Description The Dunlop No 10 is a single screw jack. It is 10" closed and 15.5" extended. The base is 6.5" x 4.5". Shaft diameter is 1.5". The brass plate is embossed DUNLOP 10 FOR COMMERCIAL VEHICLES UP TO 12 TONS. PAT No. 25880/04 MADE IN ENGLAND. The patent number apparently is in a pre 1919 format suggesting this jack may be 1904. The ratchet pawl is presented at an unusual angle. Perhaps the ‘key’ is a shaped tube, with the other end beaten flat to engage with the letter box handle hole. Photos and details courtesy of NewMoody. Applicable Vehicles: Light commercial vehicles possibly circa 1904 Jack Handle Type: Details of the handle unknown. Year Dates Noted: Circa 1904. Value: Average price paid in 2019 = £10.00 - 1 sale
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Description The jack is likely a single screw. It measures 10" closed height. Unfortunately the example shown is seized in that position. The base measures 6.25" x 4.25". It is cast DUNLOP on one side with the figure 8 on one rib. On the other side is 10GV. Photos and data courtesy of Darren Tebbitt. Applicable Vehicles: Not known. Jack Handle Type: Not unknown. Year Dates Noted:
Value:
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Description Single hydraulic ram with a manual screw extension. Cast DUNLOP vertically and No 17. The other side of the body is cast 5 / TON. Only other details as shown in the photos. Applicable Vehicles: Not known Jack Handle Type: Probably 2-piece, 36" long. Year Dates Noted:
Value: Average price paid in 2019 = £19.99 - 1 sale
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Dunlop No. 20 Description Only details as shown in the photos. Cast DUNLOP vertically and N0 20. Made by Lake and Elliot under licence. Applicable Vehicles: Not known Jack Handle Type: 2-piece, 36" long. Year Dates Noted:
Value: Average price paid in 2018 = £14.99 - 1 sale
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Description The Dunlop No 21 is a dual ram with a manual screw extension. it is 8" closed and 19" extended. It is cast on one side DUNLOP No 21 PAT No 369761 and on the actuator side 5/7 TON HYDRO. Note that the handle (final photo) has a pin on it. For the raising operation the pin is extended and stops the pump lever going fully down. To lower the jack, the operating lever is rotated anticlockwise so that the pin is moved out of way of the handle stop. This allows the pump lever to be lowered to a horizontal position that opens a release valve and the jack goes down. Photos and information courtesy of Mike Matthews. Applicable Vehicles: Not known Jack Handle Type: 2-piece, 36" long. Year Dates Noted:
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Description I am not certain if the jack is a single or double stage screw. On one side is cast 1 TON DL DOME JACK. On the other is No. 24 DUNLOP. Other details as shown in the photos. Applicable Vehicles: Not known Jack Handle Type: Not known, but will use either a spade end handle or an engine crank handle. Year Dates Noted:
Value: Average price paid in 2019 = £13.50 - 1 sale
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Dunlop Type 26 Description The Type 26 is a 8 ton single piston jack plus a manual screw extension. It is 10" retracted with a 5" lift, plus a 7" manual extension. Overall height is 22". Made by Lake and Elliot under licence. Applicable Vehicles: Not known Jack Handle Type: 2-piece, 36" long. Year Dates Noted:
Value: Average price paid in 2014 = £12.00 - 1 sale
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Description Cast DUNLOP No 29. Only details as shown in the photo, courtesy of Cy Conrad. Applicable Vehicles: Pre-war Derby Bentleys and some Rolls Royces. Jack Handle Type: Not known Year Dates Noted:
Value:
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Description The No.31 is a very large heavy duty 2.5 ton single screw jack. It is 9.5" lowered and 15.75" extended.The base measures 6" x 3.5" (at widest). It is cast down one side DUNLOP No.31 and on the other FOR 2 1/4 Tons. The final photo shows its size against a Dunlop LJ47. Photos, details and the very nice sympathetic jack restoration courtesy of John Hawkin.
Applicable Vehicles:
P Jack Handle Type: 40" two piece rod with wooden handle - partly shown in the 4th montage. The 'key' end slides into the winder slot then is rotated 90 degrees to engage. Year Dates Noted: 1945 Value: Average price paid in 2019 = £10.00 - 1 sale Average price paid in 2020 = £9.99 - 1 sale
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Description The Dunlop No.34 looks very similar the the LJ34. Only details as shown in the photos. Applicable Vehicles: Not known. Jack Handle Type: 40" two piece rod with wooden handle as shown in preceding entry. The 'key' end slides into the winder slot then is rotated 90 degrees to engage. Year Dates Noted:
Value: Average price paid in 2019 = £9.99 - 1 sale Average price paid in 2020 = £20.00 - 1 sale
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Description The No.35 looks very similar to the LJ35 other than the letter casting detail. DUNLOP No.35 on one side and MADE IN ENGLAND 1945 on the other. It is a 1 ton double piston and single screw jack. It is 6.5" lowered and 14.5" extended. Photos courtesy of Steve Warcup. Applicable Vehicles: Investigation suggests it is for a Pre-war Bentley 3 1/2 litre (1935) and also for the 4 1/2 Litre variant (1940). However, previous information Bentley owners in the USA only list the No. 29, No.37, LJ5 and LJ37. I would love to hear from other Bentley owners. Jack Handle Type: 25.5" two piece rod with wooden handle. Final 2 photos show a 2 piece folding handle with metal cross bar. Year Dates Noted: 1943, 1944, 1945 Value: Average price paid in 2018 = £87.00 - 1 sale Average price paid in 2019 = £50.00 - 1 sale Average price paid in 2020 = £59.44 - 2 sales Average price paid in 2023 = £42.55 - 1 sale
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Description The No.35 undated looks basically very similar to the entry above and LJ35. It is a double piston and single screw but is undated. It is cast DUNLOP No.35 on one side and MADE IN ENGLAND on the other. It has a slightly different in height, 6.5" lowered but 16.25" extended. Applicable Vehicles: The jack pictured is correct for a 1935 Bentley 3.5 litre Owen Sedanca by Gurney Nutting. Jack Handle Type: 25.5" two piece rod with wooden handle. Final 2 photos show a 2 piece folding handle with metal cross bar. Year Dates Noted: Circa 1935 Value: Average price paid in 2017 = £450.00 - 1 sale Average price paid in 2018 = £350.00 - 1 sale Average price paid in 2019 = £45.00 - 1 sale Average price paid in 2020 = £73.66 - 3 sales Average price paid in 2023 = £300.00 - 1 sale (Came complete with mounting bracket for a Derby Bentley (last photo).
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Dunlop No. 36 Description The LJ36 is a 4 ton jack, single piston with a manual screw extension. It is 9" retracted with a 5" lift, plus 6.25" manual extension, giving a maximum height of 20.25". Made by Lake and Elliot under licence. The jack shares the same casing with the LJ17B and LJ26B. Applicable Vehicles: Not known Jack Handle Type: Handle is 2-piece, 36" long. Year Dates Noted: Not known Value: Average price paid in 2013 = £10.50 - 4 sales Average price paid in 2015 = £16.00 - 1 sale Average price paid in 2016 = £18.75 - 2 sales Average price paid in 2017 = £5.00 - 1 sale Average price paid in 2023 = £13.50 - 1 sale
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Description The LJ36A is a 4 ton jack, single piston with a manual screw extension. Cast DUNLOP No.36A on one side and 4 TONS MADE IN ENGLAND on the other. It is 9.5" closed. Hydraulic extension is 6.5" and manual screw extension is 5" giving an overall height of 21". The jack shares the same casing with the LJ17B and LJ26B. Applicable Vehicles: Not known Jack Handle Type: Handle is 2-piece, 36" long. Year Dates Noted: Not known Value: Average price paid in 2017 = £10.00 - 1 sale Average price paid in 2019 = £6.47 - 2 sales Average price paid in 2021 = £20.00 - 1 sale
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Description Double piston jack cast DUNLOP No.37. it is 7" closed and about 20" extended. Photos courtesy of Merlins Tool Shed. The 3rd photo is courtesy of Cy Conrad. It shows a very rare flat top version of the the jacking head. All others have the domed top as shown in the first photo. Applicable Vehicles: Pre-war Derby Bentleys and some Rolls Royces. Jack Handle Type: Not known Year Dates Noted:
Value: Average price paid in 2014 = £75.00 - 1 sale Average price paid in 2023 = £650.00 - 1 sale
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Description Dunlop No. 41. Cast DUNLOP No 41 on one side and 2 TONS on the other. The brass plate reads "PUT ON SIDE NEAR CENTRE BODY PILLAR AND PUSH RIGHT HOME BEFORE JACKING". Applicable Vehicles: Bentley Mk6. (Early cars 1946/7 used a Prima Jack.) Bentley R, Rolls Royce Silver Wrath, Rolls Royce Silver Dawn Jack Handle Type: As shown in final 2 pictures. Year Dates Noted: Circa 1948 to 1965 Value: Average price paid in 2013 = £96.66 - 3 sales Average price paid in 2014 = £85.62 - 3 sales Average price paid in 2015 = £102.73 - 5 sales Average price paid in 2016 = £217.50 - 2 sales Average price paid in 2017 = £160.00 - 5 sales Average price paid in 2018 = £159.99 - 2 sales Average price paid in 2020 = £225.00 - 1 sale Average price paid in 2021 = £231.66 - 3 sales Average price paid in 2022 = £250.00 - 1 sale Average price paid in 2023 = £131.33 - 3 sales £68.00 paid on UK Ebay 10 February 2024 - NH
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